FAUCET WATER PURIFIER AND FILTERING DEVICE FOR FAUCET WATER PURIFIER

Abstract

Provided by the present invention is a faucet water purifier for filtering a raw water, which comprises a control valve and a filtering device, wherein the filtering device defines a first communicating opening and a second communicating opening, the control valve comprises a valve body and a valve core, wherein the valve body defines a valve cavity, a first opening, a second opening, a third opening, a raw water inlet and a draining opening, wherein the valve core is disposed inside the valve cavity, wherein the first opening is communicated with the first communicating opening of the filtering device, the second opening is communicated with the second communicating opening of the filtering device, the third opening is communicated with a water outlet of the filtering device, and the raw water inlet of the valve body is adapted to be communicated with a raw water source.

Description

BACKGROUND OF THE PRESENT INVENTION

Field of Invention

The present invention relates to a faucet water purifier, and more particularly to a faucet water purifier capable of back-flush its filter to prolong the service life thereof. The present invention further relates to a control valve, a filtering device and a valve disk assembly for the faucet water purifier.

Description of Related Arts

With the increasing improvement of people's living standards and increasing attention to health, people's requirements for the quality of domestic water are getting higher and higher. However, on the other hand, in many countries, especially developing countries, with the continuous development of industry and agriculture, the problem of water pollution has become more and more serious, which will inevitably lead to a lesser or more severe impact on the source of the domestic water, especially the source of the tap water. In addition, the quality of the tap water will also be affected by the external environment and water supply pipelines. For example, the increase in the sand content of the source of the tap water will cause the water quality of the tap water to deteriorate. The long-term lack of cleaning of the tap water supply pipe network and the aging of the pipe network will also affect the water quality of the tap water. Therefore, in many cases, the tap water is not suitable for direct drinking. In order to solve the above-mentioned problems of the tap water, various household water purifiers have appeared on the market, such as ultrafiltration water purifiers, RO membrane water purifiers, faucet water purifiers, etc., for purifying the tap water. Among these water purification equipment, faucet water purifiers are favored by many consumers because of their small size, easy installation and disassembly, the ability to automatically purify the tap water under the pressure of the tap water without requiring electricity, etc. However, the existing faucet water purifier also has many defects. For example, the filter is easy to be blocked after treating raw water (or tap water) for a period of time SUMMARY OF THE PRESENT INVENTION

The advantage of the present invention is to provide a faucet water purifier, wherein the control valve of the faucet water purifier of the present invention is capable of controlling the raw water (such as the tap water) to back-flush the primary filter to increase the service life of the primary filter of the faucet water purifier. It is appreciated that the faucet water purifier of the present invention can be directly installed on a faucet.

Another advantage of the present invention is to provide a faucet water purifier, wherein the purified water generated by the primary filter of the faucet water purifier of the present invention and the waste water generated by the back-flushing flow out through different water outlet, thereby preventing the waste water generated by the primary filter from polluting its purified water outlet. In other words, the flow channel of the waste water generated by the primary filter of the faucet water purifier of the present invention is independent of the flow channel of the purified water generated by the primary filter.

Another advantage of the present invention is to provide a faucet water purifier, wherein the faucet water purifier of the present invention further has a first raw water opening and/or a second raw water opening to facilitate customers to obtain raw water when its filters are blocked. In addition, the flow channel of the raw water is independent of the flow channel of the waste water generated by the primary filter of the faucet water purifier of the present invention, thereby preventing the waste water generated by the primary filter from polluting its raw water outlet.

Another advantage of the present invention is to provide a faucet water purifier, wherein the faucet water purifier further comprises a terminal filter to further filter the purified water generated by the primary filter of the faucet water purifier to improve its taste. In other words, the terminal filter is provided downstream of the primary filter. Preferably, the filter material of the terminal filter is carbon fiber material. Alternatively, the filter material of the terminal filter can also be replaced by other filter materials, such as activated carbon.

Another advantage of the present invention is to provide a faucet water purifier, wherein the filtering device of the faucet water purifier of the present invention comprises at least one primary filter, wherein the primary filter is adapted for filtering the tap water. Preferably, the primary filter is a ceramic filter.

Another advantage of the present invention is to provide a control valve for the faucet water purifier, wherein the control valve for the faucet water purifier of the present invention is capable of controlling the faucet water purifier to provide the raw water and the purified water generated by the primary filter and controlling the raw water to back-flush the primary filter.

Additional objects and features of the present invention will become apparent from the following detailed description, and may be realized by means of the instrumentalities and combinations particular point out in the appended claims.

According to one aspect of the present invention, the foregoing and other objects and advantages are attained by a faucet water purifier of the present invention, which comprising:

• • a filtering device, wherein the filtering device defines a first communicating opening and a second communicating opening; and
  • a control valve, wherein the control valve comprises a valve body and a valve core, wherein the valve body defines a valve cavity, a first opening, a second opening, a third opening, a raw water inlet and a draining opening, wherein the valve core is provided inside the valve cavity, wherein the first opening of the valve body is adapted to be communicated with the first communicating opening of the filtering device, the second opening of the valve body is adapted to be communicated with the second communicating opening of the filtering device, the raw water inlet of the valve body is adapted to be communicated with a raw water source.

According to another aspect of the present invention, the present invention further provides a control valve for a faucet water purifier, which comprises:

• • a valve body; and
  • a control valve, wherein the valve body defines a valve cavity, a first opening, a second opening, a third opening, a raw water inlet and a draining opening, wherein the valve core is disposed inside the valve cavity, wherein the raw water inlet of the valve body is adapted to be communicated with a raw water source.

According to another aspect of the present invention, the present invention further provides a valve disk assembly for a plane valve for a faucet water purifier, which comprises:

• • a fixed disk; and
  • a rotatable disk, wherein the fixed disk has a first fluid control surface, and the rotatable disk has a second fluid control surface, wherein the rotatable disk and the fixed disk are disposed inside the valve cavity, wherein the second fluid control surface of the rotatable disk is arranged on the first fluid control surface of the fixed disk, and the rotatable disk is arranged to rotate relative to the fixed disk, wherein the plane valve has a first channel, a second channel, a third channel, a fourth channel, a fifth channel, a sixth channel, a seventh channel and an eighth channel, wherein the first channel, the second channel, the third channel, the fourth channel and the eighth channel are respectively provided at the fixed disk and extended from the first fluid control surface of the fixed disk; the fifth channel, the sixth channel and the seventh channel are respectively provided at the rotatable disk and extended from the second fluid control surface of the rotatable disk, wherein when the plane valve is under a filtering working position, the fifth channel of the plane valve is communicated with the first channel, and the sixth channel is communicated with the second channel and the third channel respectively.

According to another aspect of the present invention, the present invention further provides a valve disk assembly for a plane valve for a faucet water purifier, which comprises:

• • a fixed disk; and
  • a rotatable disk, wherein the fixed disk has a first fluid control surface, and the rotatable disk has a second fluid control surface, wherein the rotatable disk and the fixed disk are disposed inside the valve cavity, wherein the second fluid control surface of the rotatable disk is arranged on the first fluid control surface of the fixed disk, and the rotatable disk is arranged to rotate relative to the fixed disk, wherein the plane valve has a first channel, a second channel, a third channel, a fourth channel, a fifth channel, a sixth channel, a seventh channel and an eighth channel, wherein the first channel, the second channel, the third channel, the fourth channel and the eighth channel are respectively provided at the fixed disk and extended from the first fluid control surface of the fixed disk; the fifth channel, the sixth channel and the seventh channel are respectively provided at the rotatable disk and extended from the second fluid control surface of the rotatable disk, wherein when the plane valve is under a filtering working position, the fifth channel of the plane valve is communicated with the first channel and the eighth channel respectively, and the sixth channel is communicated with the second channel and the third channel respectively.

According to another aspect of the present invention, the present invention further provides a valve disk assembly for a plane valve for a faucet water purifier, which comprises:

• • a fixed disk; and
  • a rotatable disk, wherein the fixed disk has a first fluid control surface, and the rotatable disk has a second fluid control surface, wherein the rotatable disk and the fixed disk are disposed inside the valve cavity, wherein the second fluid control surface of the rotatable disk is arranged on the first fluid control surface of the fixed disk, and the rotatable disk is arranged to rotate relative to the fixed disk, wherein the plane valve has a first channel, a second channel, a third channel, a fourth channel, a fifth channel, a sixth channel and a seventh channel, wherein the first channel, the second channel, the third channel, the fourth channel and the seventh channel are respectively provided at the fixed disk and extended from the first fluid control surface of the fixed disk; the fifth channel and the sixth channel are respectively provided at the rotatable disk and extended from the second fluid control surface of the rotatable disk, wherein when the plane valve is under a filtering working position, the fifth channel of the plane valve is communicated with the first channel and the first channel respectively, and the sixth channel is communicated with the second channel and the third channel respectively.

According to another aspect of the present invention, the present invention further provides a valve disk assembly for a plane valve for a faucet water purifier, which comprises:

• • a fixed disk; and
  • a rotatable disk, wherein the fixed disk has a first fluid control surface, and the rotatable disk has a second fluid control surface, wherein the rotatable disk and the fixed disk are disposed inside the valve cavity, wherein the second fluid control surface of the rotatable disk is arranged on the first fluid control surface of the fixed disk, and the rotatable disk is arranged to rotate relative to the fixed disk, wherein the plane valve has a first channel, a second channel, a third channel, a fourth channel, a fifth channel, a sixth channel, a seventh channel and an eighth channel, wherein the first channel, the second channel, the third channel, the fourth channel, the seventh channel and the eighth channel are respectively provided at the fixed disk and extended from the first fluid control surface of the fixed disk; the fifth channel and the sixth channel are respectively provided at the rotatable disk and extended from the second fluid control surface of the rotatable disk, wherein when the plane valve is under a filtering working position, the fifth channel of the plane valve is communicated with the first channel and the eighth channel respectively, and the sixth channel is communicated with the second channel and the third channel respectively.

According to another aspect of the present invention, the present invention further provides a filtering device for a faucet water purifier, which comprises:

• • an outer casing;
  • a primary filter, wherein the outer casing defines a first accommodation cavity, wherein the primary filter is provided inside the first accommodation cavity of the outer casing, and the outer casing and the primary filter define a raw water channel therebetween, the primary filter has a purified water outlet, wherein the filtering device defines a first communicating opening and a second communicating opening, wherein the first communicating opening of the filtering device is communicated with the raw water channel of the filtering device, the second communicating opening of the filtering device is communicated with the purified water outlet of the primary filter.

Still further objects and advantages of the present invention will become apparent from a consideration of the ensuing description and drawings.

These and other objectives, features, and advantages of the present invention will become apparent from the following detailed description, the accompanying drawings, and the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front view of the faucet water purifier according to a first embodiment of the present invention.

FIG. 2 is an exploded view of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 3A is a front view of the filtering device of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 3B is a sectional view of the filtering device of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 3C is another sectional view of the filtering device of the faucet water purifier according to the above first embodiment of the present invention, which shows a brush of the filtering device.

FIG. 3D is a perspective view of a primary filter of the filtering device of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 4A is a perspective view of a base of the filtering device of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 4B is a sectional view of the base of the filtering device of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 4C is another sectional view of the base of the filtering device of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 4D is another sectional view of the base of the filtering device of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 5A is a sectional view of the base and a terminal filter of the filtering device of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 5B is a perspective view of a terminal filter of the filtering device of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 5C is a sectional view of the terminal filter of the filtering device of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 6A is a perspective view of a plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows a first channel, a second channel, a third channel, a fourth channel, an eighth channel and a raw water supplying channel of the plane valve.

FIG. 6B is another perspective view of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the first channel, the second channel, the third channel, the fourth channel, the eighth channel, the raw water supplying channel and a second seal of the plane valve.

FIG. 6C is another perspective view of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows a first opening, a second opening and a third opening of the valve body.

FIG. 6D is another perspective view of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows a raw water inlet of the valve body.

FIG. 6E is another perspective view of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows a first raw water opening, a second raw water opening and a draining opening of the valve body.

FIG. 6F is a top view of the valve body of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 6G is a bottom view of the valve body of the plane valve of the faucet purifier according to the above first embodiment of the present invention.

FIG. 6H is a front view of the valve body of the plane valve of the faucet purifier according to the above first embodiment of the present invention.

FIG. 6I is a perspective view of the valve body of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 7A is a sectional view of the valve body of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the first channel, the second channel, the first opening and the second opening of the plane valve.

FIG. 7B is another sectional view of the valve body of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the third channel and the third opening of the plane valve.

FIG. 7C is another sectional view of the valve body of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the fourth channel and the first raw water opening of the plane valve.

FIG. 7D is another sectional view of the valve body of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the eighth channel, the raw water supplying channel, the raw water inlet, the draining opening and the second raw water opening of the plane valve.

FIG. 8A is a sectional view of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein a fixing device is disposed inside the valve cavity of the plane valve.

FIG. 8B is a perspective view of the valve body of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein a guiding plate of the faucet water purifier of the present invention is provided at the valve body of the plane valve.

FIG. 8C is a perspective view of the guiding plate of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 8D is another perspective view of the guiding plate of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 9A is a perspective view of the fixing device of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 9B is a sectional view of the fixing device of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 9C is a perspective view of a fixing portion of a fixed disk of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows first sealing grooves of the fixing portion.

FIG. 9D is another perspective view of the fixing portion of the fixed disk of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows second sealing grooves of the fixing portion.

FIG. 9E shows the fixing portion of the fixed disk of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein an upper end portion of the fixed disk is provided at the fixing portion.

FIG. 9F is a perspective view of a first seal of a sealing assembly of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 9G is a perspective view of the second seal of the sealing assembly of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 9H is a perspective view of a fixing holder of the fixing device of the faucet water purifier according to the above first embodiment of the present invention, which shows restricting grooves of the fixing holder.

FIG. 10A is a perspective view of the fixed disk of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 10B is a top view of the fixed disk of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 10C is a bottom view of the fixed disk of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 10D is a perspective view of a rotatable disk of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 10E is a top view of the rotatable disk of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 10F is a bottom view of the rotatable disk of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 11A is a structure diagram of the faucet water purifier according to the above first embodiment of the present invention, wherein the faucet water purifier shown in FIG. 11A is under a filtering working state, and the arrows shown in FIG. 11A respectively point to the directions of water flow.

FIG. 11B is a structure diagram of the faucet water purifier according to the above first embodiment of the present invention, wherein the faucet water purifier shown in FIG. 11B is under a back-flushing working state, and the arrows shown in FIG. 11B respectively point to the directions of water flow.

FIG. 11C is a structure diagram of the faucet water purifier according to the above first embodiment of the present invention, wherein the faucet water purifier shown in FIG. 11C is under a first raw water supplying working state, and the arrows shown in FIG. 11C point to the directions of water flow.

FIG. 11D is a structure diagram of the faucet water purifier according to the above first embodiment of the present invention, wherein the faucet water purifier shown in FIG. 11D is under a second raw water supplying working state, and the arrows shown in FIG. 11D point to the directions of water flow.

FIG. 12A is a structure diagram of the fixed disk of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 12B is a structure diagram of the rotatable disk of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the dotted line shown in FIG. 12B shows a communicating channel of the rotatable disk.

FIG. 12C is a diagram of the equal division of the fixed disk of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows channels are provided in the specific equal division positions of the fixed disk respectively.

FIG. 12D is a diagram of the equal division of the rotatable disk of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows channels are provided in the specific equal division positions of the rotatable disk respectively.

FIG. 13A is a diagram of the communication between the channels of the rotatable disk and the channels of the fixed disk of the plane valve when the plane valve of the faucet water purifier according to the above first embodiment of the present invention is under a filtering working position, wherein the shaded area shown in FIG. 13A shows the passages defined by the communication between the channels of the rotatable disk and the channels of the fixed disk of the plane valve.

FIG. 13B is a diagram of the communication between the channels of the rotatable disk and the channels of the fixed disk of the plane valve when the plane valve of the faucet water purifier according to the above first embodiment of the present invention is under a back-flushing working position, wherein the shaded area shown in FIG. 13B shows the passages defined by the communication between the channels of the rotatable disk and the channels of the fixed disk of the plane valve.

FIG. 13C is a diagram of the communication between the channels of the rotatable disk and the channels of the fixed disk of the plane valve when the plane valve of the faucet water purifier according to the above first embodiment of the present invention is under a first raw water supplying working position, wherein the shaded area shown in FIG. 13C shows the passages defined by the communication between the channels of the rotatable disk and the channels of the fixed disk of the plane valve.

FIG. 13D is a diagram of the communication between the channels of the rotatable disk and the channels of the fixed disk of the plane valve when the plane valve of the faucet water purifier according to the above first embodiment of the present invention is under a second raw water supplying working position, wherein the shaded area shown in FIG. 13D shows the passages defined by the communication between the channels of the rotatable disk and the channels of the fixed disk of the plane valve.

FIG. 14 is an exploded view of an alternative embodiment of the control valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 15A is a perspective view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows a first channel, a second channel, a third channel, a fourth channel, an eighth channel and a raw water supplying channel of the plane valve.

FIG. 15B is another perspective view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the first channel, the second channel, the third channel, the fourth channel, the eighth channel, the raw water supplying channel and a second seal of the plane valve.

FIG. 15C is another perspective view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows a first raw water opening, a second raw water opening and a draining opening of the valve body.

FIG. 15D is another perspective view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows a first opening, a second opening and a third opening of the valve body.

FIG. 15E is another perspective view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows a raw water inlet of the valve body.

FIG. 15F is a front view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 15G is a side view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 15H is a top view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 15I is a bottom view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 16A is a sectional view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the first channel, the second channel, the first opening and the second opening of the plane valve.

FIG. 16B is another sectional view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the third channel and the third opening of the plane valve.

FIG. 16C is another sectional view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the fourth channel and the first raw water opening of the plane valve.

FIG. 16D is another sectional view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the eighth channel, the raw water supplying channel, the raw water inlet and the second raw water opening of the plane valve.

FIG. 16E is another sectional view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows that the draining opening is communicated with the valve cavity of the plane valve.

FIG. 17A is another sectional view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the fixing device is disposed inside the valve cavity of the plane valve.

FIG. 17B is a perspective view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the guiding plate of the faucet water purifier of the present invention is provided at the valve body of the plane valve.

FIG. 17C is a perspective view of the guiding plate of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 17D is another perspective view of the guiding plate of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 18A is a perspective view of the fixing device of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 18B is a sectional view of the fixing device of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 18C is a perspective view of the fixing portion of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above second embodiment of the present invention, which shows the first sealing grooves of the fixing portion.

FIG. 18D is another perspective view of the fixing portion of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the second sealing grooves of the fixing portion.

FIG. 18E is a perspective view of the upper end portion of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the upper end portion of the fixed disk is provided at the fixing portion of the fixed disk.

FIG. 18F is a perspective view of the first seal of the sealing assembly of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 18G is a perspective view of the second seal of the sealing assembly of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 18H is a perspective view of a fixing holder of the fixing device of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the restricting grooves of the fixing holder.

FIG. 19A is a perspective view of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 19B is a top view of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 19C is a bottom view of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 19D is a perspective view of the rotatable disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 19E is a top view of the rotatable disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 19F is a bottom view of the rotatable disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 20A is a structure diagram of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the faucet water purifier shown in FIG. 20A is under the filtering working state, and the arrows in FIG. 20A to the directions of water flow.

FIG. 20B is a structure diagram of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the faucet water purifier shown in FIG. 20B is under the back-flushing working state, and the arrows shown in FIG. 20B point to the directions of water flow.

FIG. 20C is a structure diagram of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the faucet water purifier shown in FIG. 20C is under a first raw water supplying working state, and the arrows shown in FIG. 20C point to the directions of water flow.

FIG. 20D is a structure diagram of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the faucet water purifier shown in FIG. 20D is under a second raw water supplying working state, and the arrows shown in FIG. 20D point to the directions of water flow.

FIG. 21A is a structure diagram of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 21B is a structure diagram of the rotatable disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the dotted lines shown in FIG. 21B show the communicating channels of the rotatable disk.

FIG. 21C is a diagram of the equal divisions of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows that the channels are respectively provided in the specific equal divisions of the fixed disk.

FIG. 21D is a diagram of the equal divisions of the rotatable disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows that the channels are respectively provided in the specific equal divisions of the rotatable disk.

FIG. 22A is a diagram of the communication between the channels of the rotatable disk and the channels of the fixed disk of the alternative embodiment of the plane valve when the plane valve of the faucet water purifier according to the above first embodiment of the present invention is under a filtering working position, wherein the shaded area shown in FIG. 13A shows the passages defined by the communication between the channels of the rotatable disk and the channels of the fixed disk of the plane valve.

FIG. 22B is a diagram of the communication between the channels of the rotatable disk and the channels of the fixed disk of the alternative embodiment of the plane valve when the plane valve of the faucet water purifier according to the above first embodiment of the present invention is under a back-flushing working position, wherein the shaded area shown in FIG. 13B shows the passages defined by the communication between the channels of the rotatable disk and the channels of the fixed disk of the plane valve.

FIG. 22C is a diagram of the communication between the channels of the rotatable disk and the channels of the fixed disk of the alternative embodiment of the plane valve when the plane valve of the faucet water purifier according to the above first embodiment of the present invention is under a first raw water supplying working position, wherein the shaded area shown in FIG. 13C shows the passages defined by the communication between the channels of the rotatable disk and the channels of the fixed disk of the plane valve.

FIG. 22D is a diagram of the communication between the channels of the rotatable disk and the channels of the fixed disk of the alternative embodiment of the plane valve when the plane valve of the faucet water purifier according to the above first embodiment of the present invention is under a second raw water supplying working position, wherein the shaded area shown in FIG. 13C shows the passages defined by the communication between the channels of the rotatable disk and the channels of the fixed disk of the plane valve.

FIG. 23 is an exploded view of another alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 24A is a perspective view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows a first channel, a second channel, a third channel, a fourth channel, a seventh channel and a raw water supplying channel of the plane valve.

FIG. 24B is another perspective view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the first channel, the second channel, the third channel, the fourth channel, the seventh channel, the raw water supplying channel and a second seal of the plane valve.

FIG. 24C is another perspective view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows a first raw water opening, a second raw water opening and a draining opening of the valve body.

FIG. 24D is another perspective view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows a first opening, a second opening and a third opening of the valve body.

FIG. 24E is another perspective view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows a raw water inlet of the valve body.

FIG. 24F is a front view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 24G is a side view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 24H is a top view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 24I is a bottom view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 25A is a sectional view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the first channel and the first opening of the plane valve.

FIG. 25B is a sectional view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the second channel, the raw water supplying channel, the second opening and the second raw water opening of the plane valve.

FIG. 25C is another sectional view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the third channel, the fourth channel, the third opening, the first raw water opening and the raw water inlet of the plane valve.

FIG. 25D is another sectional view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the seventh channel and the draining opening of the plane valve.

FIG. 26A is another sectional view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the fixing device is disposed inside the valve cavity of the plane valve.

FIG. 26B is a perspective view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the guiding plate of the faucet water purifier of the present invention is provided at the valve body of the plane valve.

FIG. 26C is a perspective view of the guiding plate of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 26D is another perspective view of the guiding plate of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 27A is a perspective view of the fixing device of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 27B is a sectional view of the fixing device of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 27C is a perspective view of the fixing portion of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above second embodiment of the present invention, which shows the first sealing grooves of the fixing portion.

FIG. 27D is another perspective view of the fixing portion of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the second sealing grooves of the fixing portion.

FIG. 27E is a perspective view of the upper end portion of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the upper end portion of the fixed disk is provided at the fixing portion of the fixed disk.

FIG. 27F is a perspective view of the first seal of the sealing assembly of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 27G is a perspective view of the second seal of the sealing assembly of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 27H is a perspective view of a fixing holder of the fixing device of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the restricting grooves of the fixing holder.

FIG. 28A is a perspective view of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 28B is a top view of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 28C is a bottom view of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 28D is a perspective view of the rotatable disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 28E is a top view of the rotatable disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 28F is a bottom view of the rotatable disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 29A is a structure diagram of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the faucet water purifier shown in FIG. 29A is under the filtering working state, and the arrows in FIG. 29A to the directions of water flow.

FIG. 29B is a structure diagram of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the faucet water purifier shown in FIG. 29B is under the back-flushing working state, and the arrows shown in FIG. 29B point to the directions of water flow.

FIG. 29C is a structure diagram of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the faucet water purifier shown in FIG. 29C is under a first raw water supplying working state, and the arrows shown in FIG. 29C point to the directions of water flow.

FIG. 29D is a structure diagram of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the faucet water purifier shown in FIG. 29D is under a second raw water supplying working state, and the arrows shown in FIG. 29D point to the directions of water flow.

FIG. 30A is a structure diagram of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 30B is a structure diagram of the rotatable disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the dotted lines shown in FIG. 30B show the communicating channels of the rotatable disk.

FIG. 30C is a diagram of the equal divisions of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows that the channels are respectively provided in the specific equal divisions of the fixed disk.

FIG. 30D is a diagram of the equal divisions of the rotatable disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows that the channels are respectively provided in the specific equal divisions of the rotatable disk.

FIG. 31A is a diagram of the communication between the channels of the rotatable disk and the channels of the fixed disk of the alternative embodiment of the plane valve when the plane valve of the faucet water purifier according to the above first embodiment of the present invention is under a filtering working position, wherein the shaded area shown in FIG. 31A shows the passages defined by the communication between the channels of the rotatable disk and the channels of the fixed disk of the plane valve.

FIG. 31B is a diagram of the communication between the channels of the rotatable disk and the channels of the fixed disk of the alternative embodiment of the plane valve when the plane valve of the faucet water purifier according to the above first embodiment of the present invention is under a back-flushing working position, wherein the shaded area shown in FIG. 31B shows the passages defined by the communication between the channels of the rotatable disk and the channels of the fixed disk of the plane valve.

FIG. 31C is a diagram of the communication between the channels of the rotatable disk and the channels of the fixed disk of the alternative embodiment of the plane valve when the plane valve of the faucet water purifier according to the above first embodiment of the present invention is under a first raw water supplying working position, wherein the shaded area shown in FIG. 31C shows the passages defined by the communication between the channels of the rotatable disk and the channels of the fixed disk of the plane valve.

FIG. 31D is a diagram of the communication between the channels of the rotatable disk and the channels of the fixed disk of the alternative embodiment of the plane valve when the plane valve of the faucet water purifier according to the above first embodiment of the present invention is under a second raw water supplying working position, wherein the shaded area shown in FIG. 31D shows the passages defined by the communication between the channels of the rotatable disk and the channels of the fixed disk of the plane valve.

FIG. 32 is an exploded view of another alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 33A is a perspective view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows a first channel, a second channel, a third channel, a fourth channel, a seventh channel an eighth channel and a raw water supplying channel of the plane valve.

FIG. 33B is another perspective view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the first channel, the second channel, the third channel, the fourth channel, the seventh channel, the eighth channel, the raw water supplying channel and a second seal of the plane valve.

FIG. 33C is another perspective view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows a first raw water opening, a second raw water opening and a draining opening of the valve body.

FIG. 33D is another perspective view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows a first opening, a second opening and a third opening of the valve body.

FIG. 33E is another perspective view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows a raw water inlet of the valve body.

FIG. 33F is a front view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 33G is a side view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 33H is a top view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 33I is a bottom view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 34A is a sectional view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the first channel and the first opening of the plane valve.

FIG. 34B is a sectional view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the second channel, the raw water supplying channel, the second opening and the second raw water opening of the plane valve.

FIG. 34C is a sectional view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the eighth channel, the fourth channel, the raw water inlet and the first raw water opening of the plane valve.

FIG. 34D is another sectional view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the seventh channel and the draining opening of the plane valve.

FIG. 34E is another sectional view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the third channel and the third opening of the plane valve.

FIG. 35A is another sectional view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the fixing device is disposed inside the valve cavity of the plane valve.

FIG. 35B is a perspective view of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the guiding plate of the faucet water purifier of the present invention is provided at the valve body of the plane valve.

FIG. 35C is a perspective view of the guiding plate of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 35D is another perspective view of the guiding plate of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 36A is a perspective view of the fixing device of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 36B is a sectional view of the fixing device of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 36C is a perspective view of the fixing portion of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above second embodiment of the present invention, which shows the first sealing grooves of the fixing portion.

FIG. 36D is another perspective view of the fixing portion of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the second sealing grooves of the fixing portion.

FIG. 36E is a perspective view of the upper end portion of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the upper end portion of the fixed disk is provided at the fixing portion of the fixed disk.

FIG. 36F is a perspective view of the first seal of the sealing assembly of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 36G is a perspective view of the second seal of the sealing assembly of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 36H is a perspective view of a fixing holder of the fixing device of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows the restricting grooves of the fixing holder.

FIG. 37A is a perspective view of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 37B is a top view of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 37C is a bottom view of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 37D is a perspective view of the rotatable disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 37E is a top view of the rotatable disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 37F is a bottom view of the rotatable disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 38A is a structure diagram of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the faucet water purifier shown in FIG. 38A is under the filtering working state, and the arrows in FIG. 38A point to the directions of water flow.

FIG. 38B is a structure diagram of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the faucet water purifier shown in FIG. 38B is under the back-flushing working state, and the arrows shown in FIG. 38B point to the directions of water flow.

FIG. 38C is a structure diagram of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the faucet water purifier shown in FIG. 38C is under a first raw water supplying working state, and the arrows shown in FIG. 38C point to the directions of water flow.

FIG. 38D is a structure diagram of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the faucet water purifier shown in FIG. 38D is under a second raw water supplying working state, and the arrows shown in FIG. 38D point to the directions of water flow.

FIG. 39A is a structure diagram of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention.

FIG. 39B is a structure diagram of the rotatable disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, wherein the dotted lines shown in FIG. 39B show the communicating channels of the rotatable disk.

FIG. 39C is a diagram of the equal divisions of the fixed disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows that the channels are respectively provided in the specific equal divisions of the fixed disk.

FIG. 39D is a diagram of the equal divisions of the rotatable disk of the alternative embodiment of the plane valve of the faucet water purifier according to the above first embodiment of the present invention, which shows that the channels are respectively provided in the specific equal divisions of the rotatable disk.

FIG. 40A is a diagram of the communication between the channels of the rotatable disk and the channels of the fixed disk of the alternative embodiment of the plane valve when the plane valve of the faucet water purifier according to the above first embodiment of the present invention is under a filtering working position, wherein the shaded area shown in FIG. 40A shows the passages defined by the communication between the channels of the rotatable disk and the channels of the fixed disk of the plane valve.

FIG. 40B is a diagram of the communication between the channels of the rotatable disk and the channels of the fixed disk of the alternative embodiment of the plane valve when the plane valve of the faucet water purifier according to the above first embodiment of the present invention is under a back-flushing working position, wherein the shaded area shown in FIG. 40B shows the passages defined by the communication between the channels of the rotatable disk and the channels of the fixed disk of the plane valve.

FIG. 40C is a diagram of the communication between the channels of the rotatable disk and the channels of the fixed disk of the alternative embodiment of the plane valve when the plane valve of the faucet water purifier according to the above first embodiment of the present invention is under a first raw water supplying working position, wherein the shaded area shown in FIG. 40C shows the passages defined by the communication between the channels of the rotatable disk and the channels of the fixed disk of the plane valve.

FIG. 40D is a diagram of the communication between the channels of the rotatable disk and the channels of the fixed disk of the alternative embodiment of the plane valve when the plane valve of the faucet water purifier according to the above first embodiment of the present invention is under a second raw water supplying working position, wherein the shaded area shown in FIG. 40D shows the passages defined by the communication between the channels of the rotatable disk and the channels of the fixed disk of the plane valve.

FIG. 41 is a front view of the faucet water purifier according to a second embodiment of the present invention.

FIG. 42 is an exploded view of the faucet water purifier according to the above second embodiment of the present invention.

FIG. 43A is a front view of a filtering device of the faucet water purifier according to the above second embodiment of the present invention.

FIG. 43B is a sectional view of the filtering device of the faucet water purifier according to the above second embodiment of the present invention.

FIG. 43C is a perspective view of a primary filter of the filtering device of the faucet water purifier according to the above second embodiment of the present invention.

FIG. 43D is a perspective view of a secondary filter of the filtering device of the faucet water purifier according to the above second embodiment of the present invention.

FIG. 44A is a perspective view of a base of the filtering device of the faucet water purifier according to the above second embodiment of the present invention.

FIG. 44B is a sectional view of the base of the filtering device of the faucet water purifier according to the above second embodiment of the present invention.

FIG. 44C is another sectional view of the base of the filtering device of the faucet water purifier according to the above second embodiment of the present invention.

FIG. 44D is another sectional view of the base of the filtering device of the faucet water purifier according to the above second embodiment of the present invention.

FIG. 44E is another sectional view of the base of the filtering device of the faucet water purifier according to the above second embodiment of the present invention.

FIG. 45A is a sectional view of the base and a terminal filter of the filtering device of the faucet water purifier according to the above second embodiment of the present invention.

FIG. 45B is a sectional view of the terminal filter of the filtering device of the faucet water purifier according to the above second embodiment of the present invention.

FIG. 45C is another sectional view of the terminal filter of the filtering device of the water purifier according to the above second embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

The following description is disclosed to enable any person skilled in the art to make and use the present invention. Preferred embodiments are provided in the following description only as examples and modifications will be apparent to those skilled in the art. The general principles defined in the following description would be applied to other embodiments, alternatives, modifications, equivalents, and applications without departing from the spirit and scope of the present invention.

Those skilled in the art should understand that, in the disclosure of the present invention, terminologies of “longitudinal”, “lateral”, “upper”, “lower”, “front”, “back”, “left”, “right”, “perpendicular”, “horizontal”, “top”, “bottom”, “inner”, “outer” and etc. just indicate relations of direction or position are based on the relations of direction or position shown in the appended drawings, which is only to facilitate descriptions of the present invention and to simplify the descriptions, rather than to indicate or imply that the referred device or element must apply specific direction or to be operated or configured in specific direction. Therefore, the above-mentioned terminologies shall not be interpreted as confine to the present invention.

It will be understood that the term “a” should be understood as “at least one” or “one or more”, that is, in one embodiment, the number of an element may be one, and in other embodiments, the number of the element can be greater than one, and the term “a” cannot be construed as a limitation to the quantity.

Referring to FIG. 1 to FIG. 40D, a faucet water purifier of a first embodiment of the present invention is illustrated, wherein the faucet water purifier of the present invention comprises a control valve 10E and a filtering device 20E, wherein the control valve 10E is provided for controlling the flow of water, such as controlling the raw water (or tap water) to be supplied to the filtering device 20E and controlling the supply of the purified water generated or produced by treating the raw water by the filtering device 20E.

As shown in FIG. 1 to FIG. 5C, the filtering device 20E of the faucet water purifier according to the first embodiment of the present invention comprises an outer casing 21E and a primary filter 22E, wherein the outer casing 21E defines a first accommodation cavity 210E, wherein the primary filter 22E is disposed inside the first accommodation cavity 210E of the outer casing 21E, and the outer casing 21E and the primary filter 22E define a raw water channel 2101E therebetween, the primary filter 22E has a purified water outlet 2201E. Accordingly, when the raw water flows into the raw water channel 2101E and is treated by the primary filter 22E under the action of water pressure, the generated purified water flows out of the purified water outlet 2201E of the primary filter 22E. Further, the raw water channel 2101E is provided at one side of the primary filter 22E, and the purified water outlet 2301E is provided at an opposite side of the primary filter 22E. Preferably, the primary filter 22E is an ultrafiltration filter. Preferably, the primary filter 22E is a ceramic filter. It is appreciated that the primary filter may also be a filter made of other materials, or a composite filter made of multiple materials, for example, a composite filter composed of any two or more materials of ceramic, carbon fiber, PP cotton and activated carbon particles.

As shown in FIG. 1 to FIG. 5C and FIG. 11A to FIG. 11D, the filtering device 20E of the faucet water purifier according to the first embodiment of the present invention has a first communicating opening 201E and a second communicating opening 202E, wherein the first communicating opening 201E of the filtering device 20E is communicated with the raw water channel 2101E of the filtering device 20E, so that the control valve 10E can supply raw water to the filtering device 20E through the first communicating opening 201E, and the second communicating opening 202E of the filtering device 20E is communicated with the purified water outlet 2201E of the primary filter 22E, so that the purified water generated by the primary filter 22E can flow out through the second communicating opening 202E, and under the control of the control valve 10E, be provided through the first water outlet 100E of the faucet water purifier of the present invention. In other words, the purified water generated by the primary filter 22E of the filtering device 20E of the faucet water purifier of the present invention flows to the second communicating opening 202E of the filtering device 20E under the action of water pressure.

As shown in FIG. 1 to FIG. 5C and FIG. 11A to FIG. 11D, accordingly, when the filtering device 20E of the faucet water purifier according to the second embodiment of the present invention is used to treat the raw water, the users can control the raw water to flow to the first communicating opening 201E of the filtering device 20E through the control valve 10E, the raw water flows to the raw water channel 2101E of the filtering device 20E under the action of water pressure, and then the raw water is treated by the primary filter 22E under the action of water pressure such that the purified water is generated and flows to the second communicating opening 202E of the filtering device 20E through the purified water outlet 2201E of the primary filter 22E, the purified water flows out and is provided through the second communicating opening 202E under the control of the control valve 10E. Accordingly, the faucet water purifier according to the first embodiment of the present invention is under a filtering working state at this time. Further, when the control valve 10E of the faucet water purifier according to the first embodiment of the present invention controls the raw water to back-flush the primary filter 22E of the filtering device 20E, the users can control the raw water to flow to the second communicating opening 202E of the filtering device 20E through the control valve 10E, the raw water flows into the purified water channel 2201E of the filtering device 20E under the action of water pressure and back-flushes the primary filter 22E under the action of water pressure, the generated waste water flows to the first communicating opening 201E of the filtering device 20E through the raw water channel 2101E under the action of water pressure, and flows out through the first communicating opening 201E under the control of the control valve 10E. Accordingly, at this time, the faucet water purifier according to the first embodiment of the present invention is under a back-flushing working state. It is appreciated that the back-flushing mentioned herein refers to the flow direction of the raw water flowing through the primary filter 22E during the primary filter 22E being flushed is opposite to the flow direction of the raw water flowing through the primary filter 22E during the raw water being purified by the primary filter 22E.

As shown in FIG. 11A and FIG. 11D, the faucet water purifier according to the first embodiment of the present invention further has at least one raw water supplying working state, wherein when the faucet water purifier of the present invention is under the raw water supplying working state, the user can control the raw water to flow directly to a raw water outlet and to be provided through the control valve 10E, instead of flowing through the filtering device 20E and being purified by the filtering device 20E.

As shown in FIG. 1 to FIG. 5C and FIG. 11A to FIG. 11D, the filtering device 20E of the faucet water purifier according to the first embodiment of the present invention further comprises a base 24E, wherein the primary filter 22E is provided at the base 24E, and the base 24E defines a first water cavity 2401E, wherein the first water cavity 2401E of the base 24E is communicated with the purified water outlet 2201E of the primary filter 22E and the second communicating opening 202E of the filtering device 20E respectively. In other words, the purified water outlet 2201E of the filtering device 20E is communicated with the second communicating opening 202E of the filtering device 20E through the first water cavity 2401E of the base 24E, so that the purified water generated by the primary filter 22E can flow out through the second communicating opening 202E. More preferably, the primary filter 22E is water-sealedly provided at the base 24E, and the primary filter 22E and the base 24E define the first water cavity 2401E therebetween. Preferably, the second communicating opening 202E is provided at the base 24E.

As shown in FIG. 1 to FIG. 5C, the primary filter 22E of the filtering device 20E of the faucet water purifier according to the first embodiment of the present invention is water-sealedly provided at the base 24E, so as to prevent the raw water inside the raw water channel 2101E from flowing to the first water cavity 2401E when the control valve 10E controls the primary filter 22E to filter the raw water. More preferably, the primary filter 22E is detachably provided at the base 24E, so that the primary filter 22E can be replaced. Alternatively, the primary filter 22E is water-sealedly provided at the outer casing 21E, so that the raw water can only flow inside the raw water channel 2101E when the control valve 10E controls the primary filter 22E to filter the raw water. Alternatively, the primary filter 22E is detachably provided at the outer casing 21E, the outer casing 21E is water-sealedly provided at the base 24E. Alternatively, the primary filter 22E is integrally provided at the base 24E. Alternatively, the primary filter 22E is integrally provided at the outer casing 21E, the outer casing 21E is integrally provided at the base 24E.

As shown in FIG. 1 to FIG. 5C, the base 24E of the filtering device 20E of the faucet water purifier according to the first embodiment of the present invention comprises a base bottom 241E and a first spacing portion 242E, wherein the first spacing portion 242E is provided at the base bottom 241E and extended from the base bottom 241E, wherein the first water cavity 2401E is defined and embraced by the first spacing portion 242E. Preferably, the first spacing portion 242E is ring-shaped.

As shown in FIG. 1 to FIG. 5C, the first communicating opening 201E of the filtering device 20E of the faucet water purifier according to the first embodiment of the present invention is preferably provided at the base 24E. Alternatively, the first communicating opening 201E of the filtering device 20E is provided at the outer casing 21E. As shown in FIG. 1 to FIG. 5C, the outer casing 21E of the filtering device 20E of the faucet water purifier according to the first embodiment of the present invention is preferably provided at the edge of the base 24E. Preferably, the outer casing 21E is integrated with the base 24E.

As shown in FIG. 5A to FIG. 5C, the base 24E of the filtering device 20E of the faucet water purifier according to the first embodiment of the present invention further comprises a water supplying portion 245E, wherein the water supplying portion 245E is provided and extended from the base bottom 241E, wherein the water supplying portion 245E defines the first water outlet 100E.

As shown in FIG. 5A to FIG. 5C, further, the filtering device 20E of the water faucet purifier according to the first embodiment of the present invention further comprises a terminal filter 25E, wherein the base bottom 241E and the water supplying portion 245E of the base 24E define a purifying cavity 2450E therebetween, wherein the terminal filter 25E is disposed inside the purifying cavity 2450E, wherein the purifying cavity 2450E is provided and communicated with a third opening 1103E of the control valve 10E and the first water outlet 100E respectively, so that the terminal filter 25E can further filter the purified water generated by the primary filter 22E before it is provided to the users through the first water outlet 100E. In other words, the terminal filter 25E is provided at the upstream of the first water outlet 100E and the downstream of the third opening 1103E of the control valve 10E to further filter the purified water generated by the primary filter 22E, and then provides it to the users for using. Those skilled in the art will appreciate that the terminal filter 25E may also be made of carbon fiber or other filter materials to improve the taste of water. Preferably, the water supplying portion 245E is detachably provided at the base bottom 241E of the base 24E, the terminal filter 25E is detachably provided at the purifying cavity 2450E, so that the terminal filter 25E can be replaced. More preferably, the water supplying portion 245E is detachably screwed at the base bottom 241E of the base 24E. Alternatively, the water supplying portion 245E is detachably clamped at the base bottom 241E of the base 24E.

As shown in FIG. 1 to FIG. 5C, the base 24E of the faucet water purifier according to the first embodiment of the present invention further has a communicating portion 246E, wherein the communicating portion 246E has a first communicating channel 2461E and a second communicating channel 2462E, wherein the first communicating channel 2461E is provided to be communicated with the first communicating opening 201E and the raw water channel 2101E respectively, the second communicating channel 2462E is provided to be communicated with the second communicating opening 202E and the first water cavity 2401E respectively. Further, the communicating portion 246E has a purified water supplying channel 2464E, wherein the purified water supplying channel 2464E is provided to be communicated with the third opening 1103E and the first water outlet 100E respectively, so that the purified water generated by the primary filter 22E of the filtering device 20E of the faucet water purifier of the present invention can flow out through the third opening 1103E of the control valve 10E, and flows to the first water outlet 100E through the purified water supplying channel 2464E. Preferably, the first communicating channel 2461E is provided between the first communicating opening 201E and the raw water channel 2101E, the second communicating channel 2462E is provided between the second communicating opening 202E and the first water cavity 2401E, the purified water supplying channel 2464E is provided between the third opening 1103E and the first water outlet 100E. More preferably, the purified water supplying channel 2464E is provided and communicated with the third opening 1103E and the purifying cavity 2450E respectively, so that the purified water supplying channel 2464E is capable of communicating with the first water outlet 100E through the purifying cavity 2450E. Preferably, the first water outlet 100E comprises a plurality of water outlet holes.

As shown in FIG. 1 to FIG. 3C, the filtering device 20E of the faucet water purifier according to the first embodiment of the present invention further comprises a brush 26E, wherein the brush 26E comprises a brush body 261E, wherein the brush body 261E is rotatably provided between the outer casing 21E and the primary filter 22E, so that when the brush body 261E is rotated, the outer surface of the primary filter 22E, which faces the outer casing 21E, can be brushed. Further, the brush body 261E of the brush 26E of the filtering device 20E comprises a bristle holder 2611E and a plurality of bristles 2612E, wherein the bristles 2612E of the brush body 261E of the brush 26E are arranged on the bristle holder 2611E, and the bristles 2612E are arranged towards the primary filter 22E, so that when the brush body 261E is rotated, the bristles 2612E can brush the outer surface of the primary filter 22E. It is appreciated that when the primary filter 22E of the filtering device 20E of the faucet water purifier of the present invention is back-flushed, rotating the brush body 261E can make the outer surface of the primary filter 22E facing the outer casing 21E be flushed clean. In other words, combining the brush 26E with the back-flushing to the primary filter 22E of the filtering device 20E of the faucet water purifier of the present invention by the raw water can effectively back-flush the primary filter 22E of the filtering device 20E of the faucet water purifier of the present invention, so as to improve the service life of the filtering device 20E of the faucet water purifier of the present invention.

As shown in FIG. 1 to FIG. 3C, the brush 26E of the filtering device 20E of the faucet water purifier according to the first embodiment of the present invention further has an operation end 262E provided at the bristle holder 2611E, the outer casing 21E of the filtering device 20E has an operation hole 211E, the operation end 262E is extended from the bristle holder 2611E, and crosses through the operation hole 211E of the outer casing 21E, so that the users can rotate the operation end 262E through a driving mechanism, such as a rotating button, a rotating handle, etc., so as to drive the brush body 261E to rotate along the outer surface of the primary filter 22E. It is appreciated that the operation end 262E is extended from the bristle holder 2611E, and passes through the operation hole 211E of the outer casing 21E.

As shown in FIG. 1 to FIG. 7D, the control valve 10E of the faucet water purifier of a first embodiment of the present invention comprises a valve body 11E and a valve core 12E, wherein the valve body 11E defines a valve cavity 110E, a first opening 1101E, a second opening 1102E, a third opening 1103E, a raw water inlet 1105E and a draining opening 1108E, wherein the valve core 12E is disposed inside the valve cavity 110E, wherein the first opening 1101E of the valve body 11E is adapted to be communicated with the first communicating opening 201E of the filtering device 20E, the second opening 1102E of the valve body 11E is adapted to be communicated with the second communicating opening 202E of the filtering device 20E, the third opening 1103E of the valve body 11E is adapted to be communicated with the first water outlet 100E of the filtering device 20E, the raw water inlet 1105E of the valve body 11E is adapted to be communicated with a raw water source (for example, a water outlet of a faucet).

As shown in FIG. 1 to FIG. 7D and FIG. 11A, the control valve 10E of the faucet water purifier according to the first embodiment of the present invention has a filtering working position, wherein when the control valve 10E is under the filtering working position, the valve core 12E of the control valve 10E defines a first communicating passage 1001E and a second communicating passage 1002E, wherein the first communicating passage 1001E is communicated with the first opening 1101E of the valve body 11E and the raw water inlet 1105E respectively, the second communicating passage 1002E is communicated with the second opening 1102E of the valve body 11E and the third opening 1103E respectively. Accordingly, when the control valve 10E is under the filtering working position, under the action of water pressure, the raw water or the tap water flows into the raw water inlet 1105E of the valve body 11E of the control valve 10E, and then flows to the first opening 1101E of the valve body 11E through the first communicating passage 1001E, so as to further flow to the raw water channel 2101E of the filtering device 20E through the first communicating opening 201E of the filtering device 20E, and after the raw water flowing into the raw water channel 2101E is filtered by the primary filter 22E, and the generated purified water can flow out from the purified water outlet 2201E of the primary filter 22E and flow to the second communicating opening 202E of the filtering device 20E. Therefore, the purified water generated by the primary filter 22E flows out from the second communicating opening 202E, and flows through the second opening 1102E, the second communicating passage 1002E and the third opening 1103E in sequence, so that the purified water generated by the primary filter 22E can be provided through the first water outlet 100E communicated with the third opening 1103E. It is appreciated that when the control valve 10E of the faucet water purifier according to the first embodiment of the present invention is controlled under the filtering working position, the faucet water purifier of the present invention is controlled under its filtering working state.

As shown in FIG. 1 to FIG. 7D and FIG. 11B, the control valve 10E of the faucet water purifier according to the first embodiment of the present invention has a back-flushing working position, wherein when the control valve 10E is under the back-flushing working position, the valve core 12E of the control valve 10E defines a third communicating passage 1003E and a fourth communicating passage 1004E, wherein the third communicating passage 1003E is communicated with the second opening 1102E of the valve body 11E and the raw water inlet 1105E respectively, the fourth communicating passage 1004E is communicated with the first opening 1101E of the valve body 11E and the draining opening 1108E respectively. Accordingly, when the control valve 10E is under the back-flushing working position, under the action of water pressure, the raw water or the tap water flows into the raw water inlet 1105E of the valve body 11E of the control valve 10E, and then flows into the second opening 1102E of the valve body 11E through the third communicating passage 1003E, and further flows into the filtering device 20E through the second communicating opening 202E of the filtering device 20E, the raw water flows into the primary filter 22E through the purified water outlet 2201E of the primary filter 22E under the action of water pressure, after the raw water back-flushes the primary filter 22E, the generated waste water flows into the raw water channel 2101E. At this time, since the first opening 1101E of the valve body 11E is communicated with the draining opening 1108E through the fourth communicating passage 1004E, therefore, the waste water generated by using the raw water to back-flush the primary filter 22E flows into the raw water channel 2101E and flows out from the first communicating opening 201E, and then flows through the first opening 1101E, the fourth communicating passage 1004E and the draining opening 1108E in sequence, so that the waste water generated by using the raw water to back-flush the primary filter 22E can flow out through the draining opening 1108E. It is appreciated that when the control valve 10E of the faucet water purifier according to the first embodiment of the present invention is controlled under the back-flushing working position, the faucet water purifier of the present invention is controlled under its back-flushing working state.

As shown in FIG. 1 to FIG. 7D and FIG. 11C, the control valve 10E of the faucet water purifier according to the first embodiment of the present invention further has a first raw water opening 1104E, wherein the control valve 10E further comprises a first raw water supplying working position, wherein when the control valve 10E is under the first raw water supplying working position, the valve core 12E of the control valve 10E defines a fifth communicating passage 1005E, wherein the fifth communicating passage 1005E is communicated with the raw water inlet 1105E and the first raw water opening 1104E of the valve body 11E respectively. Accordingly, when the control valve 10E is under the first raw water supplying working position, under the action of water pressure, the raw water or the tap water flows into the raw water inlet 1105E of the valve body 11E of the control valve 10E, and then flows into the first raw water opening 1104E of the valve body 11E through the fifth communicating passage 1005E, such that the raw water can be provided by the first raw water opening 1104E. It is appreciated that when the control valve 10E of the faucet water purifier according to the first embodiment of the present invention is controlled under the first raw water supplying working position, the faucet water purifier of the present invention is controlled under its first raw water supplying working position working state.

As shown in FIG. 1 to FIG. 7D and FIG. 11D, the control valve 10E of the faucet water purifier according to the first embodiment of the present invention further has a second raw water opening 1109E, wherein the control valve 10E further comprises a second raw water supplying working position, wherein when the control valve 10E is under the second raw water supplying working position, the valve core 12E of the control valve 10E defines a sixth communicating passage 1006E, wherein the sixth communicating passage 1006E is communicated with the raw water inlet 1105E and the second raw water opening 1109E of the valve body 11E respectively. Accordingly, when the control valve 10E is under the second raw water supplying working position, under the action of water pressure, the raw water or the tap water flows into the raw water inlet 1105E of the valve body 11E of the control valve 10E, and then flows into the second raw water opening 1109E of the valve body 11E through the sixth communicating passage 1006E, such that the raw water can be provided by the second raw water opening 1109E. It is appreciated that when the control valve 10E of the faucet water purifier according to the first embodiment of the present invention is controlled under the second raw water supplying working position, the faucet water purifier of the present invention is controlled under its second raw water supplying working position working state.

As shown in FIG. 10A to FIG. 10F and FIG. 12A to FIG. 12D, the control valve 10E of the faucet water purifier according to the first embodiment of the present invention is a plane valve, wherein the valve core 12E of the plane valve 10E further comprises a fixed disk 121E and a rotatable disk 122E, wherein the fixed disk 121E has a first fluid control surface 1210E, the rotatable disk 122E has a second fluid control surface 1220E, wherein the rotatable disk 122E and the fixed disk 121E are both disposed inside the valve cavity 110E, wherein the second fluid control surface 1220E of the rotatable disk 122E is provided on the first fluid control surface 1210E of the fixed disk 121E, and the rotatable disk 122E is provided to be capable of rotating relative to the fixed disk 121E. Preferably, the raw water inlet 1105E is communicated with the valve cavity 110E of the valve body 11E.

As shown in FIG. 6A to FIG. 7D, FIG. 10A to FIG. 10F and FIG. 12A to FIG. 12D, the plane valve 10E of the faucet water purifier according to the first embodiment of the present invention has a first channel 101E, a second channel 102E, a third channel 103E, a fourth channel 104E, a fifth channel 105E, a sixth channel 106E, a seventh channel 107E and an eighth channel 108E, wherein the first channel 101E, the second channel 102E, the third channel 103E, the fourth channel 104E and the eighth channel 108E are respectively arranged on the fixed disk 121E and extended from the first fluid control surface 1210E of the fixed disk 121E; the fifth channel 105E, the sixth channel 106E and the seventh channel 107E are respectively arranged on the rotatable disk 122E and extended from the second fluid control surface 1220E of the rotatable disk 122E, wherein the first channel 101E is communicated with the first opening 1101E, the second channel 102E is communicated with the second opening 1102E, the third channel 103E is communicated with the third opening 1103E, the fourth channel 104E is communicated with the first raw water opening 1104E, the fifth channel 105E is connected with the raw water inlet 1105E, the seventh channel 107E is connected with the eighth channel 108E, and the eighth channel 108E is communicated with the draining opening 1108E. Preferably, the raw water inlet 1105E and the fifth channel 105E are communicated with the valve cavity 110E respectively, so that the fifth channel 105E is communicated with the raw water inlet 1105E. More preferably, the sixth channel 106E of the rotatable disk 122E is a communicating blind hole.

As shown in FIG. 12A to FIG. 12D, the first fluid control surface 1210E of the fixed disk 121E of the plane valve 10E of the faucet water purifier according to the first embodiment of the present invention defines an inner portion 12101E and an edge portion 12102E extended outward from the inner portion 12101E, wherein the eighth channel 108E of the plane valve 10E is arranged at the inner portion 12101E of the fixed disk 121E, the first channel 101E, the second channel 102E, the third channel 103E and the fourth channel 104E of the plane valve 10E are arranged clockwise at the edge portion 12102E of the first fluid control surface 1210E of the fixed disk 121E in this order, wherein the fifth channel 105E, the sixth channel 106E and the seventh channel 107E of the plane valve 10E are arranged clockwise at the second fluid control surface 1220E of the rotatable disk 122E in this order. Alternatively, the first channel 101E, the second channel 102E, the third channel 103E and the fourth channel 104E of the plane valve 10E are arranged anticlockwise at the first fluid control surface 1210E of the fixed disk 121E of the plane valve 10E in this order, wherein the fifth channel 105E, the sixth channel 106E and the seventh channel 107E of the plane valve 10E are arranged anticlockwise at the second fluid control surface 1220E of the rotatable disk 122E. In other words, the first channel 101E, the second channel 102E, the third channel 103E and the fourth channel 104E of the plane valve 10E are arranged to surround the eighth channel 108E. Preferably, the first channel 101E, the second channel 102E, the third channel 103E, the fourth channel 104E and the eighth channel 108E of the plane valve 10E are spacedly provided at the first fluid control surface 1210E of the fixed disk 121E of the plane valve 10E, the fifth channel 105E, the sixth channel 106E and the seventh channel 107E of the plane valve 10E are spacedly arranged at the second fluid control surface 1220E of the rotatable disk 122E.

As shown in FIG. 11A to FIG. 13D, the rotatable disk 122E of the plane valve 10E of the faucet water purifier according to the first embodiment of the present invention is capable of rotating relative to the fixed disk 121E, so that the plane valve 10E has a filtering working position and a back-flushing working position, wherein when the plane valve 10E is under the filtering working position, the fifth channel 105E of the plane valve 10E is communicated with the first channel 101E, so as to define the first communicating passage 1001E communicating with the raw water inlet 1105E and the first opening 1101E respectively, the sixth channel 106E is communicated with the second channel 102E and the third channel 103E respectively, so as to define the second communicating passage 1002E communicating with the second opening 1102E and the third opening 1103E respectively; when the plane valve 10E is under the back-flushing working position, the fifth channel 105E of the plane valve 10E is communicated with the second channel 102E, so as to define the third communicating passage 1003E communicating with the raw water inlet 1105E and the second opening 1102E respectively, the seventh channel 107E of the plane valve 10E is communicated with the first channel 101E and the eighth channel 108E respectively, so as to define the fourth communicating passage 1004E communicating with the first opening 1101E and the draining opening 1108E respectively. As shown in FIG. 13B, when the plane valve 10E of the faucet water purifier according to the first embodiment of the present invention is under the back-flushing working position, the fourth channel 104E of the plane valve 10E are blocked (or closed) by the rotatable disk 122E.

As shown in FIG. 11A to FIG. 13D, when the control valve 10E of the faucet water purifier according to the first embodiment of the present invention is under the first raw water supplying working position, the fifth channel 105E of the plane valve 10E is communicated with the fourth channel 104E, so as to define a fifth communicating passage 1005E communicated with the raw water inlet 1105E and the first raw water opening 1104E of the valve body 11E respectively. Preferably, when the control valve 10E is under the first raw water supply working position, the fourth channel 104E of the control valve 10E is communicated with the fifth channel 105E, and the first channel 101E, the second channel 102E, the third channel 103E and the eighth channel 108E of the control valve 10E are covered by the rotatable disk 122E of the control valve 10E, so that the raw water can only flow into the fourth channel 104E.

As shown in FIG. 11A to FIG. 13D, the plane valve 10E of the water purifier according to the first embodiment of the present invention further has a raw water supplying channel 109E, wherein the raw water supplying channel 109E is arranged at the fixed disk 121E and extended from the first fluid control surface 1210E of the fixed disk 121E, the raw water supplying channel 109E is communicated with the second raw water opening 1109E, wherein when the plane valve 10E is under the second raw water supplying working position, the fifth channel 105E of the plane valve 10E is communicated with the raw water supplying channel 109E, so as to define the sixth communicating passage 1006E communicated with the raw water inlet 1105E and the second raw water opening 1109E respectively. Further, when the plane valve 10E is under the first raw water supplying working position, the first channel 101E and the third channel 103E of the plane valve 10E are blocked by the rotatable disk 122E of the control valve 10E respectively; wherein when the plane valve is under the second raw water supplying position, the fourth channel 104E of the plane valve 10E is blocked (or closed) by the rotatable disk 122E. Preferably, when the control valve 10E is under the second raw water supply working position, the raw water supplying channel 109E of the control valve 10E is communicated with the fifth channel 105E, and the first channel 101E, the second channel 102E, the third channel 103E, the fourth channel 104E and the eighth channel 108E of the control valve 10E are covered by the rotatable disk 122E of the control valve 10E, so that the raw water can only flow into the raw water supplying channel 109E. It is appreciated that when the control valve 10E is under the first raw water supply working position, the raw water supply channel 109E of the control valve 10E is further covered by the rotatable disk 122E of the control valve 10E.

As shown in FIG. 6A to FIG. 7D, the first opening 1101E, the second opening 1102E and the third opening 1103E of the plane valve 10E of the faucet water purifier according to the first embodiment of the present invention are provided at the same side of the valve body 11E of the plane valve 10E, and the first raw water opening 1104E and the second raw water opening 1109E of the plane valve 10E are provided at the other side of the valve body 11E of the plane valve 10E.

As shown in FIG. 8A to FIG. 8D, the faucet water purifier according to the first embodiment of the present invention further comprises a guiding plate 30, wherein the guiding plate 30 is provided between the base 24E of the filtering device 20E and the valve body 11E of the plane valve 10E, wherein the guiding plate 30 has a first flow guiding hole 301 and a second flow guiding hole 302, wherein the first flow guiding hole 301 has a first flow guiding port 3011 and a second flow guiding port 3012, the second flow guiding hole 302 has a third flow guiding port 3021 and a fourth flow guiding port 3022, wherein the guiding plate 30 further has a first side surface 31 and a second side surface 32, wherein the first flow guiding port 3011 and the third flow guiding port 3021 are provided at the first side surface 31 of the guiding plate 30, the second flow guiding port 3012 and the fourth flow guiding port 3022 are provided at the second side surface 32 of the guiding plate 30, wherein the first side surface 31 of the guiding plate 30 is provided to face the valve body 11E, the second side surface 32 is provided to face the base 24E. Further, the first flow guiding port 3011 is provided to be adapted to communicate with the first opening 1101E of the valve body 11E, the third flow guiding port 3021 is provided to be adapted to communicate with the second opening 1102E, the second flow guiding port 3012 is provided to be adapted to communicate with the first communicating opening 201E of the filtering device 20E, the fourth flow guiding port 3022 is provided to be adapted to communicate with the second communicating opening 202E. In other words, the first flow guiding hole 301 of the guiding plate 30 is communicated with the first opening 1101E and the first communicating opening 201E respectively, the second flow guiding hole 302 is communicated with the second opening 1102E and the second communicating opening 202E respectively. Preferably, the guiding plate 30 is made of sealing material, so as to be water-sealedly provided between the base 24E of the filtering device 20E and the control valve 10E, and play a role of water-sealedly sealing the connection between the base 24E of the filtering device 20E and the valve body 11E of the control valve 10E.

As shown in FIG. 5A, FIG. 8A to FIG. 8D, the purified water supplying channel 2464E of the base 24E of the faucet water purifier according to the first embodiment of the present invention has a purified water opening 204E, the guiding plate 30 has a purified water through hole 304, wherein the purified water through hole 304 has a first purified water port 3041 and a second purified water port 3042, wherein the first purified water port 3041 is arranged on the first side 31 of the guiding plate 30, the second purified water port 3042 is arranged on the second side 32 of the guiding plate 30, the purified water opening 204E is arranged on the base 24E, wherein the first purified water port 3041 is arranged suitable for communicating with the third opening 1103E of the valve body 11E, the second purified water port 3042 is arranged to communicate with the purified water opening 204E of the purified water supplying channel 2464E of the filtering device 20E.

As shown in FIG. 8A to FIG. 8D, the guiding plate 30 of the water purifier according to the first embodiment of the present invention further comprises a positioning protrusion 33, wherein the positioning protrusion 33 is preferably provided at the first side surface 31, wherein the positioning protrusion 33 is provided to engage with the positioning groove 34 provided at the valve body 11E, so as to help the guiding plate 30 to be correctly provided between the valve body 11E of the control valve 10E and the base 24E of the filtering device 20E. It is appreciated that when the positioning protrusion 33 of the guiding plate 30 is correctly engaged with the positioning groove 34 provided at the valve body 11E, the first flow guiding port 3011 is communicated with the first opening 1101E of the valve body 11E, the third flow guiding port 3021 is communicated with the second opening 1102E, the second flow guiding port 3012 is communicated with the first communicating opening 201E of the filtering device, the fourth flow guiding port 3022 is communicated with the second communicating opening 202E, the first purified water port 3041 is communicated with the third opening 1103E, the second purified water port 3042 is communicated with the purified water opening 204E of the purified water supplying channel 2464E of the filtering device 20E. It is worth mentioning that the guiding plate 30 of the faucet water purifier of the present invention will significantly reduce the manufacturing difficulty of the base 24E of the filtering device 20E and the valve body 11E of the faucet water purifier of the present invention. As shown in FIG. 2 to FIG. 8D, the distribution and shape of the first opening 1101E, the second opening 1102E and the third opening 1103E of the valve body 11E of the control valve 10E of the faucet water purifier of the present invention in the valve body 11E are relatively irregular, which causes that the first communicating opening 201E, the second communicating opening 202E and the purified water opening 204E of the filtering device 20E are difficult to cooperate and communicate with the first opening 1101E, the second opening 1102E and the third opening 1103E. In addition, if the base 24E of the filtering device 20E is directly communicated with the valve body 11E, the distribution and shape of the first opening 1101E, the second opening 1102E and the third opening 1103E of the valve body 11E in the valve body 11E determine the distribution and shape of the first communicating opening 201E, the second communicating opening 202E and the purified water opening 204E of the filtering device 20E in its base 24E, which will cause the significant increase of the manufacturing difficulty of the base 24E of the filtering device 20E. The structure of the guiding plate 30 adopted by the faucet water purifier of the present invention that the first flow guiding port 3011 of the guiding plate 30, which is provided at the first side surface 31 thereof, is adapted to communicate with the first opening 1101E of the valve body 11E; the third flow guiding port 3021 of the guiding plate 30, which is provided at the first side surface 31 thereof, is adapted to communicate with the second opening 1102E; the first purified water port 3041 is adapted to communicate with the third opening 1103E of the valve body 11E; the second flow guiding port 3012 of the guiding plate 30, which is provided at the second side surface 32, is adapted to communicate with the first communicating opening 201E of the filtering device 20E, the fourth flow guiding port 3022 of the guiding plate 30, which is provided at the second side surface 32, is adapted to communicate with the second communicating opening 202E; the second purified water port 3042 is adapted to communicate with the purified water opening 204E of the purified water supplying channel 2464E of the filtering device 20E is convenient for cooperating and communicating the first communicating opening 201E, the second communicating opening 202E and the purified water supplying channel 2464E of the filtering device 20E with the first opening 1101E, the second opening 1102E and the third opening 1103E. In addition, the above-mentioned structure of the guiding plate 30 adopted by the faucet water purifier of the present invention also makes the base 24E of the filtering device 20E of the faucet water purifier of the present invention and the valve body 11E of the control valve 10E can be manufactured separately, and the distribution and shape of the first communicating opening 201E, the second communicating opening 202E and the purified water opening 204E of the purified water supplying channel 2464E of the filtering device 20E in the base 24E are not restricted by the distribution and shape of the first opening 1101E, the second opening 1102E and the third opening 1103E of the valve body 11E in the valve body 11E. This reduces the manufacturing difficulty of the base 24E of the filtering device 20E.

As shown in FIG. 9A to FIG. 9H, the fixed disk 121E of the valve core 12E of the plane valve 10E of the faucet water purifier according to the first embodiment of the present invention comprises an upper end portion 1211E, a lower end portion 1212E and a fixing portion 1213E provided between the upper end portion 1211E and the lower end portion 1212E, wherein the upper end portion 1211E defines the first fluid control surface 1210E of the fixed disk 121E, and the lower end portion 1212E is provided at the valve cavity 110E of the valve body 11E. Preferably, the lower end portion 1212E of the fixed disk 121E of the valve core 12E of the plane valve 10E of the faucet water purifier of the present invention is integrally provided at the inner wall of the valve body 11E of the plane valve 10E.

As shown in FIG. 8A and FIG. 9A to FIG. 9H, the plane valve 10E of the faucet water purifier according to the first embodiment of the present invention further comprises a fixing device 40, wherein the fixing device 40 comprises a fixing holder 41, a first clamping connector 42 and a second clamping connector 43, wherein the fixing holder 41 of the fixing device 40 has at least one accommodation chamber 410 and at least one water inlet opening 401, wherein the water inlet opening 401 is communicated with the raw water inlet 1105E of the valve body 11E and the accommodation chamber 410 respectively, wherein the first clamping connector 42 is provided at the fixing portion 1213E of the fixed disk 121E, the second clamping connector 43 is provided at the fixing holder 41, wherein the first clamping connector 42 and the second clamping connector 43 are provided to be adapted to be clamped together, so that the fixing portion 1213E of the fixed disk 121E can be fixed at the fixing holder 41 through the first clamping connector 42 and the second clamping connector 43. Further, the water inlet opening 401 of the fixing holder 41 and the raw water inlet 1105E are both communicated with the valve cavity 110E of the valve body 11E, so that the accommodation chamber 410 of the fixing holder 41 is communicated with the raw water inlet 1105E of the valve body 11E through the water inlet opening 401 and the valve cavity 110E of the valve body 11E, and the raw water can flow into the accommodation chamber 410 of the fixing holder 41 through the raw water inlet 1105E of the valve body 11E. As shown in FIG. 8A and FIG. 8A to FIG. 9H, the accommodation chamber 410 of the fixing holder 41 of the fixing device 40 of the faucet water purifier according to the first embodiment of the present invention is provided to be adapted to accommodate the upper end portion 1211E of the fixed disk 121E and the rotatable disk 122E inside the accommodation chamber 410, the fifth channel 105E of the plane valve 10E is provided to communicate with the accommodation chamber 410 of the fixing holder 41, so that raw water can be provided to the fifth channel 105E of the plane valve 10E through the water inlet opening 401 and the accommodation chamber 410 of the fixing holder 41. In other words, the fifth channel 105E of the plane valve 10E is communicated with the raw water inlet 1105E of the valve body 11E through the accommodation chamber 410 of the fixing holder 41, the water inlet opening 401 and the valve cavity 110E of the valve body 11E. As shown in FIG. 8A and FIG. 8A to FIG. 9H, further, the upper end portion 1211E of the fixed disk 121E is adapted to be detachably clamped at the fixing portion 1213E of the fixed disk 121E, the fixing portion 1213E of the fixed disk 121E is adapted to be detachably clamped at the lower end portion 1212E of the fixed disk 121E, so that the upper end portion 1211E of the fixed disk 121E cannot rotate relative to the fixing portion 1213E, the fixing portion 1213E of the fixed disk 121E cannot rotate relative to the lower end portion 1212E.

It is worth mentioning that the upper end portion 1211E of the fixed disk 121E of the valve core 12E of the plane valve 10E of the faucet water purifier of the present invention is detachably clamped at the fixing portion 1213E of the fixed disk 121E, the fixing portion 1213E of the fixed disk 121E is detachably clamped at the lower end portion 1212E of the fixed disk 121E, and the upper end portion 1211E of the fixed disk 121E and the rotatable disk 122E are accommodated inside the accommodation chamber 410 of the fixing holder 41, so that the upper end portion 1211E and the fixing portion 1213E of the fixed disk 121E and the rotatable disk 122E can be integrated together through the fixing holder 41, the first clamping connector 42 and the second clamping connector 43 of the fixing device 40. Especially, since the upper end portion 1211E of the fixed disk 121E defines the first fluid control surface 1210E of the fixed disk 121E, and the upper end portion 1211E of the fixed disk 121E is detachably clamped at the fixing portion 1213E of the fixed disk 121E, so that the upper end portion 1211E can be manufactured separately and the side surface of the upper end portion 1211E facing the rotatable disk 122E can be easily processed, such as being polished smooth, to form the first fluid control surface 1210E. However, if the fixed disk 121E of the valve core 12E of the plane valve 10E of the faucet water purifier of the present invention is fixedly provided at the valve body 11E, or the fixed disk 121E of the valve core 12E of the plane valve 10E is integrated with the valve body 11E, the side surface of the upper end portion 1211E of the fixed disk 121E of the valve core 12E of the plane valve 10E, which faces the rotatable disk 122E, is difficult to be processed and obtain the first fluid control surface 1210E.

As shown in FIG. 2, FIG. 8A and FIG. 8A to FIG. 9H, the first clamping connector 42 of the fixing device 40 of the faucet water purifier according to the first embodiment of the present invention comprises a plurality of hooks 421 provided at the side wall of the fixing portion 1213E of the fixed disk 121E, the second clamping connector 43 has a plurality of clamping concave grooves 430, wherein the hooks 421 of the first clamping connector 42 are adapted to engage with the clamping concave grooves 430 of the second clamping connector 43 together, so that the first clamping connector 42 is clamped with the second clamping connector 43. Alternatively, the first clamping connector 42 has a plurality of clamping concave grooves 430 provided at the side wall of the fixing portion 1213E of the fixed disk 121E, the second clamping connector 43 has a plurality of hooks 421 provided at the fixing holder 41, wherein the hooks 421 of the second clamping connector 43 are adapted to engage with the clamping concave grooves 430 of the first clamping connector 42. In other words, the hooks 421 of the fixing device 40 are provided at the fixing holder 41, and the clamping concave grooves 430 are provided at the side wall of the fixing portion 1213E of the fixed disk 121E. Further, the fixing device 40 has a set of guiding grooves 400 and a set of guiding members 45, wherein the guiding grooves 400 are provided at the side wall of the fixing portion 1213E of the fixed disk 121E respectively, the guiding members 45 are provided at the second clamping connector 43 and extended from the second clamping connector 43, wherein the guiding members 45 are provided directly facing the clamping concave grooves 430 respectively, and the width of the guiding member 45 is not greater than the width of the guiding groove 400, so that the first clamping connector 42 and the second clamping connector 43 can be clamped together under the guidance of the guiding grooves 400 and the guiding members 45.

As shown in FIG. 2, FIG. 8A and FIG. 8A to FIG. 9B, the plane valve 10E of the faucet water purifier according to the first embodiment of the present invention further comprises a driving assembly 6, wherein the driving assembly 6 is provided for driving the rotatable disk 122E of the plane valve 10E to rotate relative to the fixed disk 121E. As shown in FIG. 2, FIG. 8A and FIG. 9A to FIG. 9B, exemplarily, the driving assembly 6 comprises a valve rod 60, the fixing holder 41 further comprises an operation opening 402, wherein the operation opening 402 is communicated with the accommodation chamber 410 of the fixing holder 41, wherein the valve rod 60 has a driving end 61 and an operating end 62 extended from the driving end 61, wherein the driving end 61 of the valve rod 60 is disposed inside the accommodation chamber 410 of the fixing holder 41, the operating end 62 of the valve rod 60 is extended from the driving end 61 and crosses out the accommodation chamber 410 of the fixing holder 41 through the operation opening 402 of the fixing holder 41. Accordingly, when the operating end 62 of the valve rod 60 is operated to rotate, the driving end 61 is driven to rotate and further drives the rotatable disk 122E to rotate, so that the plane valve 10E is controlled to under the corresponding working position. Accordingly, the upper end portion 1211E and the fixing portion 1213E of the fixed disk 121E, the rotatable disk 122E and the valve rod 60 can be integrated together through the fixing holder 41, the first clamping connector 42 and the second clamping connector 43 of the fixing device 40, so as to reduce the manufacturing difficulty of the fixed disk 121E, and reduce the difficulty of assembling the upper end portion 1211E and the fixing portion 1213E of the fixed disk 121E, the rotatable disk 122E and the valve rod 60 into the valve cavity 110E of the valve body 11E. It is appreciated that the way of integrating the upper end portion 1211E and the fixing portion 1213E of the fixed disk 121E, the rotatable disk 122E and the valve rod 60 together through the fixing holder 41, the first clamping connector 42 and the second clamping connector 43 of the fixing device 40 also makes the upper end portion 1211E and the fixing portion 1213E of the fixed disk 121E, the rotatable disk 122E and the valve rod 60 more convenient for the automated assembly and production of the plane valve 10E. Further, the outer diameter of the driving end 61 of the valve rod 60 is smaller than the inner diameter of the accommodation chamber 410 of the fixing holder 41 and greater than the inner diameter of the operation opening 402 of the fixing holder 41, the outer diameter of the operating end 62 of the valve rod 60 is smaller than the inner diameter of operation opening 402 of the fixing holder 41, so that the fixing holder 41 can be can be pressed against the driving end 61 of the valve rod 60 under the action of external force, and the rotatable disk 122E can be pressed against the upper end portion 1211E of the fixed disk 121E under the action of the driving end 61 of the valve rod 60, and the second fluid control surface 1220E of the rotatable disk 122E is provided at the first fluid control surface 1210E of the fixed disk 121E.

It is appreciated that the driving assembly 6 can be any mechanism or component for driving the rotatable disk 122E of the plane valve 10E to rotate relative to the fixed disk 121E. Exemplarily, the driving assembly 6 also can be a gear set for driving the rotatable disk 122E of the plane valve 10E to rotate relative to the fixed disk 121E, wherein the gear set comprises a driving gear and driven cogs provided at the side wall of the rotatable disk 122E, the driving gear is engaged with and driven cogs of the rotatable disk 122E, so that the users or the operators can drive the rotatable disk 122E to rotate relative to the fixed disk 121E by rotating the driving gear. Exemplarily, the driving assembly 6 also comprises a driving rod provided at the rotatable disk 122E of the plane valve 10E and paralleled with the second fluid control surface 1220E of the rotatable disk 122E. The users can drive the driving rod of the driving assembly 6 to drive the rotatable disk 122E to rotate relative to the fixed disk 121E. As shown in FIG. 2, the fixing device 40 of the faucet water purifier according to the first embodiment of the present invention further comprises a fixing member 44, wherein the fixing member 44 is provided pressing against the fixing holder 41, and the fixing member 44 is provided to be adapted to be fixed at the valve body 11E of the plane valve 10E. Accordingly, the fixing holder 41 is held inside the valve cavity 110E of the valve body 11E through the fixing member 44.

As shown in FIG. 2, FIG. 8A and FIG. 8A to FIG. 9B, the control valve 10E of the faucet water purifier according to the first embodiment of the present invention further comprises a positioning assembly 50, wherein the positioning assembly 50 has a restricting element 51, a resetting element 52 provided at the restricting element 51, a plurality of restricting grooves 501 provided at the inner wall of the fixing holder 41 and an operation chamber 502 provided at the driving end 61 of the valve rod 60, wherein the restricting element 51 and the resetting element 52 are both disposed inside the operation chamber 502, and the resetting element 52 is provided between the restricting element 51 and the driving end 61, so that when the driving end 61 of the valve rod 60 is rotated and the restricting element 51 directly faces the restricting grooves 501, the restricting element 51 can move into the restricting grooves 501 under the action of the resetting force (or elastic force) of the resetting element 52; at this time, when the driving end 61 of the valve rod 60 continues to be rotated to make the fixing holder 41 press the restricting element 51 and further to make the restricting element 51 retract into the operation chamber 502, the driving end 61 of the valve rod 60 can be easily rotated and the restricting element 51 is kept retracted inside the operation chamber 502 under the pressure of the fixing holder 41. It is appreciated that when the driving end 61 of the valve rod 60 is rotated to make the restricting element 51 directly facing the restricting grooves 501 and further to make the restricting element 51 to move into the restricting grooves 501, the plane valve 10E is maintained under a corresponding working position, and the faucet water purifier of the present invention is under a corresponding working state. It should be understood that the resetting element 52 is a resetting spring. Alternatively, the resetting element 52 is a resetting elastic piece. Preferably, the restricting element 51 is provided to be engaged with the restricting grooves 501, so that the restricting element 51 can be stably held inside the restricting grooves 501 when there is no appropriate external force to drive the valve rod 60 to rotate.

As shown in FIG. 2 and FIG. 8A to FIG. 9H, the plane valve 10E of the faucet water purifier according to the first embodiment of the present invention further comprises a sealing assembly 13E, wherein the sealing assembly 13E has a first seal 131E, wherein the first seal 131E is provided between the upper end portion 1211E and the fixing portion 1213E of the fixed disk 121E. Further, the first seal 131E has a plurality of first sealing strips 1311E, the fixing portion 1213E of the fixed disk 121E has a set of first sealing grooves 12130E, wherein the first sealing grooves 12130E are provided to respectively surround the first channel 101E, the second channel 102E, the third channel 103E, the fourth channel 104E, the eighth channel 108E, the raw water supply channel 109E (if any) of the fixed disk 121E, the first sealing strips 1311E of the first seal 131E are provided according to the first sealing grooves 12130E of the fixing portion 1213E, so that the first sealing strips 1311E of the first seal 131E can be engaged with the first sealing grooves 12130E of the fixing portion 1213E and realizes the sealing between the upper end portion 1211E and the fixing portion 1213E of the fixed disk 121E. It is appreciated that the first sealing grooves 12130E are defined at one side of the fixing portion 1213E facing the upper end portion 1211E. Further, the sealing assembly 13E has a second seal 132E, wherein the second seal 132E is provided between the fixing portion 1213E and the lower end portion 1212E of the fixed disk 121E. Further, the second seal 132E has a plurality of second sealing strips 1321E, the fixing portion 1213E of the fixed disk 121E has a plurality of second sealing grooves 12131E, wherein the second sealing grooves 12131E are provided to respectively surround the first channel 101E, the second channel 102E, the third channel 103E, the fourth channel 104E, the eighth channel 108E, the raw water supply channel 109E of the fixed disk 121E, the second sealing strips 1321E of the second seal 132E are provided according to the second sealing grooves 12131E of the fixing portion 1213E, so that the second sealing strips 1321E of the second seal 132E can be engaged with the second sealing grooves 12131E of the fixing portion 1213E and realizes the sealing between the lower end portion 1212E and the fixing portion 1213E of the fixed disk 121E. It is appreciated that the second sealing grooves 12131E are defined at a side of the fixing portion 1213E facing the lower end portion 1212E.

As shown in FIG. 2 and FIG. 8A to FIG. 9H, the sealing assembly 13E of the faucet water purifier according to the first embodiment of the present invention further comprises at least one first sealing ring 133E, wherein the first sealing ring 133E is provided at the outer surface of the fixing holder 41, so as to realize the sealing between the fixing holder 41 and the inner wall of the valve body 11E and prevent the raw water from flowing out between the fixing holder 41 and the inner wall of the valve body 11E. Further, the sealing assembly 13E comprises at least one second sealing ring 134E, wherein the second sealing ring 134E is provided between the valve rod 60 and the fixing holder 41, so as to realize the sealing between the valve rod 60 and the inner wall of the fixing holder 41 and prevent the raw water from flowing out between the valve rod 60 and the inner wall of the fixing holder 41.

As shown in FIG. 2 and FIG. 8A to FIG. 9H, the plane valve 10E of the faucet water purifier according to the first embodiment of the present invention further comprises a rotary knob 80, wherein the rotary knob 80 is provided at the operating end 62 of the valve rod 60, so that the users can rotate the valve rod 60 to rotate the rotatable disk 122E and control the plane valve 10E to be under the corresponding working position.

As shown in FIG. 11A to FIG. 13D, the first fluid control surface 1210E of the fixed disk 121E of the plane valve 10E of the faucet water purifier according to the first embodiment of the present invention has an inner portion 12101E and an edge portion 12102E extended outward from the inner portion 12101E, which are shown by the dashed lines, wherein the inner portion 12101E and the edge portion 12102E are provided at a top end portion 1214E of the fixed disk 121E, and the edge portion 12102E (or the part other than the inner portion 12101E) of the first fluid control surface 1210E are equally divided into a first portion 1201E, a second portion 1202E, a third portion 1203E, a fourth portion 1204E, a fifth portion 1205E and a sixth portion 1206E, which are shown by the dashed lines, the second fluid control surface 1220E of the rotatable disk 122E of the plane valve 10E has an inner region 12201E and an edge region 12202E extended outward from the inner region 12201E, which are shown by the dashed lines, wherein the inner region 12201E and the edge region 12202E are provided at a bottom end portion 1221E of the rotatable disk 122E, and the edge region 12202E (or the part other than the inner region 12201E) of the second fluid control surface 1220E are equally divided into a first region 2001E, a second region 2002E, a third region 2003E, a fourth region 2004E, a fifth region 2005E and a sixth region 2006E, which are shown by the dashed lines, wherein the first channel 101E is extended downward from the first portion 1201E of the first fluid control surface 1210E of the fixed disk 121E, the second channel 102E is extended downward from the second portion 1202E and the third portion 1203E of the first fluid control surface 1210E of the fixed disk 121E, the third channel 103E is extended downward from the fourth portion 1204E of the first fluid control surface 1210E of the fixed disk 121E, the fourth channel 104E is extended downward from the sixth portion 1206E of the first fluid control surface 1210E of the fixed disk 121E, the fifth channel 105E is extended upward from the first region 2001E of the second fluid control surface 1220E of the rotatable disk 122E, the sixth channel 106E is extended upward from the third region 2003E and the fourth region 2004E of the second fluid control surface 1220E of the rotatable disk 122E, the seventh channel 107E is extended upward from the sixth region 2006E and the inner region 12201E of the second fluid control surface 1220E of the rotatable disk 122E, the eighth channel 108E is extended downward from the inner portion 12101E of the first fluid control surface 1210E of the fixed disk 121E. As shown in FIG. 12A to FIG. 12D, preferably, the edge portion 12102E of the first fluid control surface 1210E are equally divided clockwise into the first portion 1201E, the second portion 1202E, the third portion 1203E, the fourth portion 1204E, the fifth portion 1205E and the sixth portion 1206E, the edge region 12202E of the second fluid control surface 1220E of the rotatable disk 122E of the plane valve 12E are equally divided clockwise into the first region 2001E, the second region 2002E, the third region 2003E, the fourth region 2004E, the fifth region 2005E and the sixth region 2006E. Further, the raw water supplying channel 109E is extended downward from the fifth portion 1205E of the first fluid control surface 1210E of the fixed disk 121E. In other words, the first fluid control surface 1210E of the fixed disk 121E of the plane valve 10E defines six equal divisions, and the second fluid control surface 1220E of the rotatable disk 122E of the plane valve 10E defines six equal divisions, wherein when the rotatable disk 122E of the plane valve 10E is rotated until the first equal division (the first region 2001E) of the second fluid control surface 1220E of the rotatable disk 122E directly faces the second equal division (the second portion 1202E) of the first fluid control surface 1210E of the fixed disk 121E, the third equal division (the third region 2003E) and the fourth equal division (the fourth region 2004E) of the second fluid control surface 1220E of the rotatable disk 122E of the plane valve 10E directly faces the fourth equal division (the fourth portion 1204E) and the fifth equal division (the fifth portion 1205E) of the first fluid control surface 1210E of the fixed disk 121E, the sixth equal division (the sixth region 2006E) of the second fluid control surface 1220E of the rotatable disk 122E directly faces the first equal division (the first portion 1201E) of the first fluid control surface 1210E of the fixed disk 121E, so that the fifth channel 105E of the plane valve 10E is communicated with the second channel 102E, the sixth channel 106E is communicated with the third channel 103E and the raw water supplying channel 109E (if any), and the seventh channel 107E is communicated with the first channel 101E and the eighth channel 108E respectively, so as to allow the raw water to flow into the filtering device 20E through the raw water inlet 1105E, the fifth channel 105E, the second channel 102E, the second opening 1102E and the second communicating opening 202E. After the raw water back-flushes (Referring to the flow direction of the water in the primary filter 22E during the back-flushing is opposite to the flow direction of the water in the primary filter 22E during the filtering) the primary filter 22E of the filtering device 20E, it flows out through the first communicating opening 201E of the filtering device 20E, and then flows out through the first opening 1101E, the first channel 101E, the seventh channel 107E, the eighth channel 108E and the draining opening 1108E. Further, when the rotatable disk 122E of the plane valve 10E is rotated until the first equal division (the first region 2001E) of the second fluid control surface 1220E of the rotatable disk 122E directly faces the first equal division (the first portion 1201E) of the first fluid control surface 1210E of the fixed disk 121E, the third equal division (the third region 2003E) and the fourth equal division (the fourth region 2004E) of the second fluid control surface 1220E of the rotatable disk 122E of the plane valve 10E directly faces the third equal division (the third portion 1203E) and the fourth equal division (the fourth portion 1204E) of the first fluid control surface 1210E of the fixed disk 121E, the sixth equal division (the sixth region 2006E) of the second fluid control surface 1220E of the rotatable disk 122E directly faces the sixth equal division (the sixth portion 1206E) of the first fluid control surface 1210E of the fixed disk 121E, so that the fifth channel 105E is communicated with the first channel 101E, the sixth channel 106E of the plane valve 10E is communicated with the second channel 102E and the third channel 103E respectively, so as to allow the raw water to flow into the filtering device 20E through the fifth channel 105E, the first channel 101E, the first opening 1101E and the first communicating opening 201E. After the raw water is filtered by the primary filter 22E of the filtering device 20E, it flows out through the purified water outlet 2201E and the second communicating opening 202E of the filtering device 20E, and then it flows out through the second opening 1102E, the second channel 102E, the sixth channel 106E, the third channel 103E and the third opening 1103E and is supplied. Further, when the rotatable disk 122E of the plane valve 10E is rotated until the first equal division (the first region 2001E) of the second fluid control surface 1220E of the rotatable disk 122E directly faces the sixth equal division (the sixth portion 1206E) of the first fluid control surface 1210E of the fixed disk 121E, the third equal division (the third region 2003E) and the fourth equal division (the fourth region 2004E) of the second fluid control surface 1220E of the rotatable disk 122E of the plane valve 10E directly faces the second equal division (the second portion 1202E) and the third equal division (the third portion 1203E) of the first fluid control surface 1210E of the fixed disk 121E, the sixth equal division (the sixth region 2006E) of the second fluid control surface 1220E of the rotatable disk 122E directly faces the fifth equal division (the fifth portion 1205E) of the first fluid control surface 1210E of the fixed disk 121E, so that the fifth channel 105E of the plane valve 10E is communicated with the fourth channel 104E, so as to allow the raw water to flow through the fifth channel 105E, the fourth channel 104E, and then flow out through the first raw water opening 1104E and be supplied. Further, when the rotatable disk 122E of the plane valve 10E is rotated until the first equal division (the first region 2001E) of the second fluid control surface 1220E of the rotatable disk 122E directly faces the fifth equal division (the fifth portion 1205E) of the first fluid control surface 1210E of the fixed disk 121E, the third equal division (the third region 2003E) and the fourth equal division (the fourth region 2004E) of the second fluid control surface 1220E of the rotatable disk 122E of the plane valve 10E directly faces the first equal division (the first portion 1201E) and the second equal division (the second portion 1202E) of the first fluid control surface 1210E of the fixed disk 121E, the sixth equal division (the sixth region 2006E) of the second fluid control surface 1220E of the rotatable disk 122E directly faces the fourth equal division (the fourth portion 1204E) of the first fluid control surface 1210E of the fixed disk 121E, so that the fifth channel 105E of the plane valve 10E is communicated with the raw water supplying channel 109E (if any), so as to allow the raw water to flow through the fifth channel 105E, the raw water supplying channel 109E, and then flow out through the second raw water opening 1109E and be supplied.

It is worth mentioning that when the users need to switch the faucet water purifier according to the first embodiment of the present invention from the back-flushing working state to the filtering working state, only need to anticlockwise rotate the rotatable disk 122E of the plane valve 10E for one equal division angle, so that the first region 2001E of the second fluid control surface 1220E of the rotatable disk 122E directly faces the first portion 1201E of the first fluid control surface 1210E of the fixed disk 121E; when the users need to switch the faucet water purifier according to the first embodiment of the present invention from the filtering working state to the first raw water supplying working state, only need to anticlockwise rotate the rotatable disk 122E of the plane valve 10E for one equal division angle again, so that the first region 2001E of the second fluid control surface 1220E of the rotatable disk 122E directly faces the sixth portion 1206E of the first fluid control surface 1210E of the fixed disk 121E; when the users need to switch the faucet water purifier according to the first embodiment of the present invention from the first raw water supplying working state to the second raw water supplying working state, only need to anticlockwise rotate the rotatable disk 122E of the plane valve 10E for one equal division angle again, so that the first region 2001E of the second fluid control surface 1220E of the rotatable disk 122E directly faces the fifth portion 1205E of the first fluid control surface 1210E of the fixed disk 121E, as shown in FIG. 11A to FIG. 13D. In other words, the structure of the plane valve 10E of the faucet water purifier of the present invention enables the four working states of the second raw water supplying working state, the first raw water supplying working state, the filtering working state and the back-flushing working state to be continuously distributed, so that the complete switching between two adjacent working states of the second raw water supplying working state, the first raw water supplying working state, the filtering working state and the back-flushing working state of the faucet water purifier of the present invention can be realized only by rotating the rotatable disk 122E of the plane valve 10E for one equal division angle. The switching mode between the four working states of the faucet water purifier determined by the structure of the plane valve 10E of the faucet water purifier of the present invention will make the switching between the four working states of the faucet water purifier of the present invention more in line with the usage habits of the users and not easily cause an error in working state switching due to the different rotation angles when the users switch the working states. It is appreciated that since the edge portion 12102E of the first fluid control surface 1210E of the plane valve 10E of the faucet water purifier according to the first embodiment of the present invention is divided into six equal divisions, and the edge region 12202E of the second fluid control surface 1220E of the rotatable disk 122E of the plane valve 10E is divided into six equal divisions, accordingly, each time the faucet water purifier of the present invention realizes one working state switching, the rotatable disk 122E of the plane valve 10E rotates 60 degrees. In other words, one equal division angle of the rotatable disk 122E and the fixed disk 121E of the plane valve 10E is 60 degrees. Preferably, the edge portion 12102E of the first fluid control surface 1210E are equally divided anticlockwise into the first portion 1201E, the second portion 1202E, the third portion 1203E, the fourth portion 1204E, the fifth portion 1205E and the sixth portion 1206E, the edge region 12202E of the second fluid control surface 1220E of the rotatable disk 122E of the plane valve 12E are equally divided anticlockwise into the first region 2001E, the second region 2002E, the third region 2003E, the fourth region 2004E, the fifth region 2005E and the sixth region 2006E. At this time, the structure of the plane valve 10E of the faucet water purifier of the present invention enables the four working states of the back-flushing working state, the filtering working state, the first raw water supplying working state and the second raw water supplying working state to be continuously distributed, so that the complete switching between two adjacent working states of the back-flushing working state, the filtering working state, the first raw water supplying working state and the second raw water supplying working state of the faucet water purifier of the present invention can be realized only by rotating the rotatable disk 122E of the plane valve 10E for one equal division angle.

As shown in FIG. 2, the plane valve 10E of the faucet water purifier according to the first embodiment of the present invention further comprises a stopper 14E, wherein the stopper 14E is provided to prevent the invalid rotating of the rotatable disk 122E of the plane valve 10E relative to the fixed disk 121E. In other words, when the rotatable disk 122E of the plane valve 10E is rotated until the first region 2001E of the second fluid control surface 1220E of the rotatable disk 122E directly faces the second portion 1202E of the first fluid control surface 1210E of the fixed disk 121E, the faucet water purifier of the present invention is switched to the back-flushing working state, rotate clockwise the rotatable disk 122E of the plane valve 10E for an equal angle to communicate the fifth channel 105E and the seventh channel 107E of the plane valve 10E with the second channel 102E respectively, so as to make the raw water flow from the fifth channel 105E to the second channel 102E and further flow out through the seventh channel 107E; and when the rotatable disk 122E of the plane valve 10E is rotated until the first region 2001E of the second fluid control surface 1220E of the rotatable disk 122E directly faces the fifth portion 1205E of the first fluid control surface 1210E of the fixed disk 121E, the faucet water purifier of the present invention is switched to the second raw water supplying working state, rotate anticlockwise the rotatable disk 122E of the plane valve 10E for an equal angle, make the fifth channel 105E of the plane valve 10E be communicated with the third channel 103E, and make the raw water flow out through the third channel 103E. The above two rotation modes of the rotatable disk 122E of the plane valve 10E relative to the disk 121E cannot make the faucet water purifier of the present invention realize practical functions, which are invalid rotations.

As shown in FIG. 2, the stopper 14E of the faucet water purifier according to the first embodiment of the present invention comprises a first stopping member 141E and a second stopping member 142E, wherein the first stopping member 141E and the second stopping member 142E are respectively provided on the valve body 11E, the first stopping member 141E is arranged to prevent the knob 80 from further clockwise rotation when the rotatable disk 122E of the plane valve 10E is rotated so that the first region 2001E of the second fluid control surface 1220E of the rotatable disk 122E directly faces the second portion 1202E of the first fluid control surface 1210E of the fixed disk 121E; the second stopping member 142E is provided to prevent the knob 80 from further anticlockwise rotation when the rotatable disk 122E of the plane valve 10E is rotated so that the rotatable disk 122E of the plane valve 10E is rotated until the first region 2001E of the second fluid control surface 1220E of the rotatable disk 122E directly faces the fifth portion 1205E of the first fluid control surface 1210E of the fixed disk 121E, so as to prevent the rotatable disk 122E of the plane valve 10E from rotating meaninglessly relative to the fixed disk 121E. The stopper 14E of the faucet water purifier according to the first embodiment of the present invention further comprises a blocker 143E, wherein the blocker 143E is provided at the knob 80 and protruded outward from the knob 80, so as to enable the blocker 143E to be blocked by the first stopping member 141E when the first region 2001E of the second fluid control surface 1220E of the rotatable disk 122E directly faces the second portion 1202E of the first fluid control surface 1210E of the fixed disk 121E, and be blocked by the second stopping member 142E when the rotatable disk 122E of the plane valve 10E is rotated so that the rotatable disk 122E of the plane valve 10E is rotated until the first region 2001E of the second fluid control surface 1220E of the rotatable disk 122E directly faces the fifth portion 1205E of the first fluid control surface 1210E of the fixed disk 121E.

As shown in FIG. 2, the plane valve 10E of the faucet water purifier according to the first embodiment of the present invention further comprises a reminding mechanism 15E, wherein the reminding mechanism 15E is provided to give a block to the knob 80 when the user switches the faucet water purifier of the present invention to the back-flushing working state, so that the user has to significantly increase the rotating force of rotating the knob 80, the knob 80 can be rotated to continue to rotate and switch the faucet water purifier of the present invention to the back-flushing working state. In this way, the user can be reminded that the faucet water purifier of the present invention is switched to the back-flushing working state.

As shown in FIG. 2, the reminding mechanism 15E of the plane valve 10E of the faucet water purifier according to the first embodiment of the present invention comprises a driven member 151E and an elastic element 152E, wherein the driven member 151E comprises a driven end 1511E and a fixed end 1512E extended from the driven end 1511E, wherein the elastic element 152E is provided at the fixed end 1512E, the driven end 1511E is provided to face the knob 80, wherein when the user rotates the rotatable disk 122E of the plane valve 10E to make the first region 2001E of the second fluid control surface 1220E of the rotatable disk 122E directly face the second portion 1202E of the first fluid control surface 1210E of the fixed disk 121E, the driven end 1511E of the driven member 151E of the reminding mechanism 15E will block the blocker 143E, when the user increases the force to rotate the knob 80, the blocker 143E drives the driven end 1511E of the driven member 151E, so as to deform the elastic element 152E and continue to rotate the knob 80, and make the rotatable disk 122E continue to rotate and the first region 2001E of the second fluid control surface 1220E of the rotatable disk 122E directly face the second portion 1202E of the first fluid control surface 1210E of the fixed disk 121E. Preferably, the elastic element 152E is a spring.

As shown in FIG. 2, the valve body 11E further comprises a valve main body 111E and a valve housing 112E, wherein the valve housing 112E is provided on the outer surface of the valve main body 111E. It is appreciated that the first stopping member 141E, the second stopping member 142E and the reminding mechanism 15E are respectively provided at the valve housing 112E of the valve body 11E. Further, the valve housing 112E of the valve body 11E comprises an upper housing 1121E and a lower housing 1122E, wherein the upper housing 1121E and the lower housing 1122E of the valve housing 112E form a valve body cavity 1120E therebetween, wherein the valve body cavity 1120E is provided to receive the valve main body 111E of the valve body 11E.

As shown in FIG. 10A to FIG. 10F and FIG. 12A to FIG. 12D, according to the first embodiment of the present invention, the present invention further provides a valve disk assembly for a plane valve of a faucet water purifier, which comprises a fixed disk 121E and a rotatable disk 122E, wherein the fixed disk 121E has a first fluid control surface 1210E, the rotatable disk 122E has a second fluid control surface 1220E, wherein the rotatable disk 122E and the fixed disk 121E are both disposed inside the valve cavity 110E, wherein the second fluid control surface 1220E of the rotatable disk 122E is provided on the first fluid control surface 1210E of the fixed disk 121E, and the rotatable disk 122E is provided to be capable of rotating relative to the fixed disk 121E, wherein the plane valve 10E has a first channel 101E, a second channel 102E, a third channel 103E, a fourth channel 104E, a fifth channel 105E, a sixth channel 106E, a seventh channel 107E and an eight channel 108E, wherein the first channel 101E, the second channel 102E, the third channel 103E, the fourth channel 104E and the eighth channel 108E are provided at the fixed disk 121E respectively and extended from the first fluid control surface 1210E of the fixed disk 121E respectively; the fifth channel 105E, the sixth channel 106E and the seventh channel 107E are provided at the rotatable disk 122E respectively and extended from the second fluid control surface 1220E of the rotatable disk 122E respectively, wherein the first channel 101E is communicated with the first opening 1101E, the second channel 102E is communicated with the second opening 1102E, the third channel 103E is communicated with the third opening 1103E, the fourth channel 104E is communicated with the first raw water opening 1104E, the fifth channel 105E is communicated with the raw water inlet 1105E, the seventh channel 107E is communicated with the eighth channel 108E, the eighth channel 108E is communicated with the draining opening 1108E. Preferably, the raw water inlet 1105E and the fifth channel 105E are communicated with the valve cavity 110E respectively, so that the fifth channel 105E is communicated with the raw water inlet 1105E. More preferably, the sixth channel 106E of the rotatable disk 122E is a communicating blind hole.

FIG. 14 to FIG. 16E illustrate an alternative embodiment of the control valve 10E of the faucet water purifier of a first embodiment of the present invention, wherein the control valve 10F comprises a valve body 11E and a valve core 12F, wherein the valve body 11E defines a valve cavity 110E, a first opening 1101E, a second opening 1102E, a third opening 1103E, a raw water inlet 1105E and a draining opening 1108E, wherein the valve core 12F is disposed inside the valve cavity 110E, wherein the first opening 1101E of the valve body 11E is adapted to be communicated with the first communicating opening 201E of the filtering device 20E, the second opening 1102E of the valve body 11E is adapted to be communicated with the second communicating opening 202E of the filtering device 20E, the third opening 1103E of the valve body 11E is adapted to be communicated with the first water outlet 100E of the filtering device 20E, the raw water inlet 1105E of the valve body 11E is adapted to be communicated with a raw water source (for example, a water outlet of a faucet).

As shown in FIG. 14o FIG. 16 and FIG. 20A, the control valve 10F of the faucet water purifier according to the first embodiment of the present invention has a filtering working position, wherein when the control valve 10F is under the filtering working position, the valve core 12F of the control valve 10F defines a first communicating passage 1001F and a second communicating passage 1002F, wherein the first communicating passage 1001F is communicated with the first opening 1101E of the valve body 11E and the raw water inlet 1105E respectively, the second communicating passage 1002F is communicated with the second opening 1102E of the valve body 11E and the third opening 1103E respectively. Accordingly, when the control valve 10F is under the filtering working position, under the action of water pressure, the raw water or the tap water flows into the raw water inlet 1105E of the valve body 11E of the control valve 10F, and then flows to the first opening 1101E of the valve body 11E through the first communicating passage 1001F, so as to further flow to the raw water channel 2101E of the filtering device 20E through the first communicating opening 201E of the filtering device 20E, and after the raw water flowing into the raw water channel 2101E is filtered by the primary filter 22E, and the generated purified water can flow out from the purified water outlet 2201E of the primary filter 22E and flow to the second communicating opening 202E of the filtering device 20E. Therefore, the purified water generated by the primary filter 22E flows out from the second communicating opening 202E, and flows through the second opening 1102E, the second communicating passage 1002F and the third opening 1103E in sequence, so that the purified water generated by the primary filter 22E can be provided through the first water outlet 100E communicated with the third opening 1103E. It is appreciated that when the control valve 10F of the faucet water purifier according to the first embodiment of the present invention is controlled under the filtering working position, the faucet water purifier of the present invention is controlled under its filtering working state.

As shown in FIG. 14 to FIG. 16E and FIG. 20B, the control valve 10F of the faucet water purifier according to the first embodiment of the present invention has a back-flushing working position, wherein when the control valve 10F is under the back-flushing working position, the valve core 12F of the control valve 10F defines a third communicating passage 1003F and a fourth communicating passage 1004F, wherein the third communicating passage 1003F is communicated with the second opening 1102E of the valve body 11E and the raw water inlet 1105E respectively, the fourth communicating passage 1004F is communicated with the first opening 1101E of the valve body 11E and the draining opening 1108E respectively. Accordingly, when the control valve 10F is under the back-flushing working position, under the action of water pressure, the raw water or the tap water flows into the raw water inlet 1105E of the valve body 11E of the control valve 10F, and then flows into the second opening 1102E of the valve body 11E through the third communicating passage 1003F, and further flows into the filtering device 20E through the second communicating opening 202E of the filtering device 20E, the raw water flows into the primary filter 22E through the purified water outlet 2201E of the primary filter 22E under the action of water pressure, after the raw water back-flushes the primary filter 22E, the generated waste water flows into the raw water channel 2101E. At this time, since the first opening 1101E of the valve body 11E is communicated with the draining opening 1108E through the fourth communicating passage 1004F, therefore, the waste water generated by using the raw water to back-flush the primary filter 22E flows into the raw water channel 2101E and flows out from the first communicating opening 201E, and then flows through the first opening 1101E, the fourth communicating passage 1004F and the draining opening 1108E in sequence, so that the waste water generated by using the raw water to back-flush the primary filter 22E can flow out through the draining opening 1108E. It is appreciated that when the control valve 10F of the faucet water purifier according to the first embodiment of the present invention is controlled under the back-flushing working position, the faucet water purifier of the present invention is controlled under its back-flushing working state.

As shown in FIG. 14 to FIG. 16 and FIG. 20C, the control valve 10F of the faucet water purifier according to the first embodiment of the present invention further has a first raw water opening 1104E, wherein the control valve 10F further comprises a first raw water supplying working position, wherein when the control valve 10F is under the first raw water supplying working position, the valve core 12F of the control valve 10F defines a fifth communicating passage 1005F, wherein the fifth communicating passage 1005F is communicated with the raw water inlet 1105E and the first raw water opening 1104E of the valve body 11E respectively. Accordingly, when the control valve 10F is under the first raw water supplying working position, under the action of water pressure, the raw water or the tap water flows into the raw water inlet 1105E of the valve body 11E of the control valve 10F, and then flows into the first raw water opening 1104E of the valve body 11E through the fifth communicating passage 1005F, such that the raw water can be provided by the first raw water opening 1104E. It is appreciated that when the control valve 10F of the faucet water purifier according to the first embodiment of the present invention is controlled under the first raw water supplying working position, the faucet water purifier of the present invention is controlled under its first raw water supplying working state.

As shown in FIG. 14 to FIG. 16 and FIG. 20D, the control valve 10F of the faucet water purifier according to the first embodiment of the present invention further has a second raw water opening 1109E, wherein the control valve 10F further comprises a second raw water supplying working position, wherein when the control valve 10F is under the second raw water supplying working position, the valve core 12F of the control valve 10F defines a sixth communicating passage 1006F, wherein the sixth communicating passage 1006F is communicated with the raw water inlet 1105E and the second raw water opening 1109E of the valve body 11E respectively. Accordingly, when the control valve 10F is under the second raw water supplying working position, under the action of water pressure, the raw water or the tap water flows into the raw water inlet 1105E of the valve body 11E of the control valve 10F, and then flows into the second raw water opening 1109E of the valve body 11E through the sixth communicating passage 1006F, such that the raw water can be provided by the second raw water opening 1109E. It is appreciated that when the control valve 10F of the faucet water purifier according to the first embodiment of the present invention is controlled under the second raw water supplying working position, the faucet water purifier of the present invention is controlled under its second raw water supplying working state.

As shown in FIG. 19A to FIG. 19F and FIG. 21A to FIG. 21D, the control valve 10F of the faucet water purifier according to the first embodiment of the present invention is a plane valve, wherein the valve core 12F of the plane valve 10F further comprises a fixed disk 121F and a rotatable disk 122F, wherein the fixed disk 121F has a first fluid control surface 1210F, the rotatable disk 122F has a second fluid control surface 1220F, wherein the rotatable disk 122F and the fixed disk 121F are both disposed inside the valve cavity 110E of the valve body 11E of the control valve 10F, wherein the second fluid control surface 1220F of the rotatable disk 122F is provided on the first fluid control surface 1210F of the fixed disk 121F, and the rotatable disk 122F is provided to be capable of rotating relative to the fixed disk 121F.

As shown in FIG. 14 to FIG. 22D, the plane valve 10F of the faucet water purifier according to the first embodiment of the present invention has a first channel 101F, a second channel 102F, a third channel 103F, a fourth channel 104F, a fifth channel 105F, a sixth channel 106F, a seventh channel 107F and an eighth channel 108F, wherein the first channel 101F, the second channel 102F, the third channel 103F, the fourth channel 104F and the eighth channel 108F are respectively arranged at the fixed disk 121F and extended from the first fluid control surface 1210F of the fixed disk 121F; the fifth channel 105F, the sixth channel 106F and the seventh channel 107F are respectively arranged at the rotatable disk 122F and extended from the second fluid control surface 1220F of the rotatable disk 122F, wherein the first channel 101F is communicated with the first opening 1101E, the second channel 102F is communicated with the second opening 1102E, the third channel 103F is communicated with the third opening 1103E, the fourth channel 104F is communicated with the first raw water opening 1104E, the fifth channel 105F is connected with the eighth channel 108F, the seventh channel 107F is connected with the draining opening 1108E, and the eighth channel 108F is communicated with the raw water inlet 1105E. Preferably, the seventh channel 107F and the draining opening 1108E are communicated with the valve cavity 110E respectively, the fifth channel 105F and the sixth channel 106F of the rotatable disk 122E are communicating blind holes.

As shown in FIG. 21A to FIG. 21D, the first fluid control surface 1210F of the fixed disk 121F of the plane valve 10F of the faucet water purifier according to the first embodiment of the present invention defines an inner portion 12101F and an edge portion 12102F extended outward from the inner portion 12101F, wherein the eighth channel 108F of the plane valve 10F is arranged at the inner portion 12101F of the fixed disk 121F, the first channel 101F, the second channel 102F, the third channel 103F and the fourth channel 104F of the plane valve 10F are arranged clockwise at the edge portion 12102F of the first fluid control surface 1210F of the fixed disk 121F in this order, wherein the fifth channel 105F, the sixth channel 106F and the seventh channel 107F of the plane valve 10F are arranged clockwise at the second fluid control surface 1220F of the rotatable disk 122F in this order. Alternatively, the first channel 101F, the second channel 102F, the third channel 103F and the fourth channel 104F of the plane valve 10F are arranged anticlockwise at the first fluid control surface 1210F of the fixed disk 121F of the plane valve 10F in this order, wherein the fifth channel 105F, the sixth channel 106F and the seventh channel 107F of the plane valve 10F are arranged anticlockwise at the second fluid control surface 1220F of the rotatable disk 122F. In other words, the first channel 101F, the second channel 102F, the third channel 103F and the fourth channel 104F of the plane valve 10F are arranged to surround the eighth channel 108F. Preferably, the first channel 101F, the second channel 102F, the third channel 103F, the fourth channel 104F and the eighth channel 108F of the plane valve 10F are spacedly provided at the first fluid control surface 1210F of the fixed disk 121F.

As shown in FIG. 20A to FIG. 20B and FIG. 22A to FIG. 22B, the rotatable disk 122F of the plane valve 10F of the faucet water purifier according to the first embodiment of the present invention is capable of rotating relative to the fixed disk 121F, so that the plane valve 10F has a filtering working position and a back-flushing working position, wherein when the plane valve 10F is under the filtering working position, the fifth channel 105F of the plane valve 10F is communicated with the first channel 101F and the eighth channel 108F respectively, so as to define the first communicating passage 1001F communicating with the raw water inlet 1105E and the first opening 1101E respectively, the sixth channel 106F is communicated with the second channel 102F and the third channel 103F respectively, so as to define the second communicating passage 1002F communicating with the second opening 1102E and the third opening 1103E respectively; when the plane valve 10F is under the back-flushing working position, the fifth channel 105F of the plane valve 10F is communicated with the second channel 102F and the eighth channel 108F respectively, so as to define the third communicating passage 1003F communicating with the raw water inlet 1105E and the second opening 1102E respectively, the seventh channel 107F of the plane valve 10F is communicated with the first channel 101E, so as to define the fourth communicating passage 1004F communicating with the first opening 1101E and the draining opening 1108E respectively. As shown in FIG. 22B, when the plane valve 10F of the faucet water purifier according to the first embodiment of the present invention is under the back-flushing working position, the fourth channel 104F of the plane valve 10F are blocked (or closed) by the rotatable disk 122F.

As shown in FIG. 20A to FIG. 20C, when the control valve 10F of the faucet water purifier according to the first embodiment of the present invention is under the first raw water supplying working position, the fifth channel 105F of the plane valve 10F is communicated with the fourth channel 104F and the eighth channel 108F respectively, so as to define the fifth communicating passage 1005F communicated with the raw water inlet 1105E and the first raw water opening 1104E of the valve body 11F respectively. Preferably, when the control valve 10F is under the first raw water supply working position, the fifth channel 105F of the control valve 10F is communicated with the fourth channel 104F and the eighth channel 108F respectively, and the first channel 101F, the second channel 102F, the third channel 103F of the control valve 10F are covered by the rotatable disk 122F of the control valve 10F, so that the raw water can only flow into the fourth channel 104E.

As shown in FIG. 20C to FIG. 20D and FIG. 22C to FIG. 22D, the plane valve 10F of the water purifier according to the first embodiment of the present invention further has a raw water supplying channel 109F, wherein the raw water supplying channel 109F is arranged at the fixed disk 121F and extended from the first fluid control surface 1210F of the fixed disk 121F, the raw water supplying channel 109F is communicated with the second raw water opening 1109E, wherein when the plane valve 10F is under the second raw water supplying working position, the fifth channel 105F of the plane valve 10F is communicated with the raw water supplying channel 109F and the eighth channel 108F respectively, so as to define the sixth communicating passage 1006F communicated with the raw water inlet 1105E and the second raw water opening 1109E respectively. Further, when the plane valve 10F is under the first raw water supplying working position, the first channel 101F and the third channel 103F of the plane valve 10F are blocked by the rotatable disk 122F of the control valve 10F respectively; wherein when the plane valve 10F is under the second raw water supplying position, the fourth channel 104F of the plane valve 10F is blocked (or closed) by the rotatable disk 122F respectively. Preferably, when the control valve 10F is under the second raw water supply working position, the fifth channel 105F of the control valve 10F is communicated with the raw water supplying channel 109F and the eighth channel 108F respectively, and the first channel 101F, the second channel 102F and the fourth channel 104F of the control valve 10F are covered by the rotatable disk 122F of the control valve 10F, and the third channel 103F of the fixed disk 121F is communicated with the seventh channel 107F of the rotatable disk 122F, so that the raw water can only flow into the raw water supplying channel 109F. It is appreciated that when the control valve 10F is under the first raw water supply working position, the raw water supplying channel 109F of the control valve 10F is communicated with the seventh channel 107F of the rotatable disk 122F of the control valve 10F.

As shown in FIG. 17A, the fixed disk 121F of the valve core 12F of the plane valve 10F of the faucet water purifier according to the first embodiment of the present invention comprises an upper end portion 1211F a lower end portion 1212F and a fixing portion 1213F provided between the upper end portion 1211F and the lower end portion 1212F, wherein the upper end portion 1211F defines the first fluid control surface 1210F of the fixed disk 121F, and the lower end portion 1212F is provided at the valve cavity 110E of the valve body 11E. Preferably, the lower end portion 1212F of the fixed disk 121F of the valve core 12F of the plane valve 10F of the faucet water purifier of the present invention is integrally provided at the inner wall of the valve body 11E of the plane valve 10F.

As shown in FIG. 17A to FIG. 18H, the plane valve 10F of the faucet water purifier according to the first embodiment of the present invention further comprises a sealing assembly 13F, wherein the sealing assembly 13F has a first seal 131F, wherein the first seal 131F is provided between the upper end portion 1211F and the fixing portion 1213F of the fixed disk 121F. Further, the first seal 131F has a plurality of first sealing strips 1311F, the fixing portion 1213F of the fixed disk 121F has a set of first sealing grooves 12130F, wherein the first sealing grooves 12130F are provided to respectively surround the first channel 101F, the second channel 102F, the third channel 103F, the fourth channel 104F, the eighth channel 108F and the raw water supplying channel 109F (if any) of the fixed disk 121F, the first sealing strips 1311F of the first seal 131F are provided according to the first sealing grooves 12130F of the fixing portion 1213F, so that the first sealing strips 1311F of the first seal 131F can be engaged with the first sealing grooves 12130F of the fixing portion 1213F and realizes the sealing between the upper end portion 1211F and the fixing portion 1213F of the fixed disk 121F. It is appreciated that the first sealing grooves 12130F are defined at one side of the fixing portion 1213F, which faces the upper end portion 1211F. Further, the sealing assembly 13F has a second seal 132F, wherein the second seal 132F is provided between the fixing portion 1213F and the lower end portion 1212F of the fixed disk 121F. Further, the second seal 132F has a plurality of second sealing strips 1321F, the fixing portion 1213F of the fixed disk 121F has a plurality of second sealing grooves 12131F, wherein the second sealing grooves 12131F are provided to respectively surround the first channel 101F, the second channel 102F, the third channel 103F, the fourth channel 104F, the eighth channel 108F and the raw water supplying channel 109F (if any) of the fixed disk 121F, the second sealing strips 1321F of the second seal 132F are provided according to the second sealing grooves 12131F of the fixing portion 1213F, so that the second sealing strips 1321F of the second seal 132F can be engaged with the second sealing grooves 12131F of the fixing portion 1213F and realizes the sealing between the lower end portion 1212F and the fixing portion 1213F of the fixed disk 121F. It is appreciated that the second sealing grooves 12131F are defined at one side of the fixing portion 1213F, which faces the lower end portion 1212F.

As shown in FIG. 17A to FIG. 18H, the sealing assembly 13F of the faucet water purifier according to the first embodiment of the present invention further comprises at least one first sealing ring 133F, wherein the first sealing ring 133F is provided at the outer surface of the fixing holder 41, so as to realize the sealing between the fixing holder 41 and the inner wall of the valve body 11E and prevent the raw water from flowing out between the fixing holder 41 and the inner wall of the valve body 11E. Further, the sealing assembly 13F comprises at least one second sealing ring 134F, wherein the second sealing ring 134F is provided between the valve rod 60 and the fixing holder 41, so as to realize the sealing between the valve rod 60 and the inner wall of the fixing holder 41 and prevent the raw water from flowing out between the valve rod 60 and the inner wall of the fixing holder 41.

As shown in FIG. 17A to FIG. 18H, the water inlet opening 401 of the fixing holder 41 of the fixed device 40 and the draining opening 1108E of the plane valve 10F of the faucet water purifier according to the first embodiment of the present invention are respectively communicated with the valve cavity 110E of the valve body 11E, and the water inlet opening 401 of the fixed support 41 is communicated with the accommodation chamber 410, the accommodation chamber 410 of the fixing holder 41 is communicated with the seventh channel 107F of the plane valve 10F, so that the waste water can be discharged from the seventh channel 107F, the accommodation chamber 410 of the fixing holder 41, the water inlet opening 401, the valve cavity 110E of the valve body 11E and the draining opening 1108E. As shown in FIG. 17A to FIG. 18H, the accommodation chamber 410 of the fixing holder 41 of the fixing device 40 of the faucet water purifier according to the first embodiment of the present invention is provided to be adapted to accommodate the upper end portion 1211F of the fixed disk 121F and the rotatable disk 122F inside the accommodation chamber 410, the seventh channel 107F of the plane valve 10F is provided to communicate with the accommodation chamber 410 of the fixing holder 41, so that the waste water can be discharged from through the water inlet opening 401 and the draining opening 1108E of the plane valve 10F. As shown in FIG. 17A to FIG. 18H, further, the upper end portion 1211F of the fixed disk 121F is adapted to be detachably clamped at the fixing portion 1213F of the fixed disk 121F, the fixing portion 1213F of the fixed disk 121F is adapted to be detachably clamped at the lower end portion 1212F of the fixed disk 121F, so that the upper end portion 1211F of the fixed disk 121F cannot rotate relative to the fixing portion 1213F, the fixing portion 1213F of the fixed disk 121F cannot rotate relative to the lower end portion 1212F.

As shown in FIG. 21A to FIG. 21D, the first fluid control surface 1210F of the fixed disk 121F of the plane valve 10F of the faucet water purifier according to the first embodiment of the present invention has an inner portion 12101F and an edge portion 12102F extended outward from the inner portion 12101F, which are shown by the dashed lines, wherein the inner portion 12101F and the edge portion 12102F are provided at a top end portion 1214F of the fixed disk 121F, and the edge portion 12102F (or the part other than the inner portion 12101F) of the first fluid control surface 1210F are equally divided into a first portion 1201F, a second portion 1202F, a third portion 1203F, a fourth portion 1204F, a fifth portion 1205F and a sixth portion 1206F, which are shown by the dashed lines, the second fluid control surface 1220F of the rotatable disk 122F of the plane valve 10F has an inner region 12201F and an edge region 12202F extended outward from the inner region 12201F, which are shown by the dashed lines, wherein the inner region 12201F and the edge region 12202F are provided at a bottom end portion 1221F of the rotatable disk 122F, and the edge region 12202F (or the part other than the inner region 12201F) of the second fluid control surface 1220F are equally divided into a first region 2001F, a second region 2002F, a third region 2003F, a fourth region 2004F, a fifth region 2005F and a sixth region 2006F, which are shown by the dashed lines, wherein the first channel 101F is extended downward from the first portion 1201F of the first fluid control surface 1210F of the fixed disk 121F, the second channel 102F is extended downward from the second portion 1202F and the third portion 1203F of the first fluid control surface 1210F of the fixed disk 121F, the third channel 103F is extended downward from the fourth portion 1204F of the first fluid control surface 1210F of the fixed disk 121F, the fourth channel 104F is extended downward from the sixth portion 1206F of the first fluid control surface 1210F of the fixed disk 121F, the fifth channel 105F is extended upward from the first region 2001F and the inner region 12201F of the second fluid control surface 1220F of the rotatable disk 122F, the sixth channel 106F is extended upward from the third region 2003F and the fourth region 2004F of the second fluid control surface 1220F of the rotatable disk 122F, the seventh channel 107F is extended upward from the sixth region 2006F of the second fluid control surface 1220F of the rotatable disk 122F, the eighth channel 108F is extended downward from the inner portion 12101F of the first fluid control surface 1210F of the fixed disk 121F. Further, the raw water supplying channel 109F is extended downward from the fifth portion 1205F of the first fluid control surface 1210F of the fixed disk 121F. As shown in FIG. 21A to FIG. 21D, preferably, the edge portion 12102F of the first fluid control surface 1210F are equally divided clockwise into the first portion 1201F, the second portion 1202F, the third portion 1203F, the fourth portion 1204F, the fifth portion 1205F and the sixth portion 1206F, the edge region 12202F of the second fluid control surface 1220F of the rotatable disk 122F of the plane valve 12F are equally divided clockwise into the first region 2001F, the second region 2002F, the third region 2003F, the fourth region 2004F, the fifth region 2005F and the sixth region 2006F. In other words, the first fluid control surface 1210F of the fixed disk 121F of the plane valve 10F defines six equal divisions, and the second fluid control surface 1220F of the rotatable disk 122F of the plane valve 10F defines six equal divisions, wherein when the rotatable disk 122F of the plane valve 10F is rotated until the first equal division (the first region 2001F) of the second fluid control surface 1220F of the rotatable disk 122F directly faces the second equal division (the second portion 1202F) of the first fluid control surface 1210F of the fixed disk 121F, the third equal division (the third region 2003F) and the fourth equal division (the fourth region 2004F) of the second fluid control surface 1220F of the rotatable disk 122F of the plane valve 10F directly faces the fourth equal division (the fourth portion 1204F) and the fifth equal division (the fifth portion 1205F) of the first fluid control surface 1210F of the fixed disk 121F, the sixth equal division (the sixth region 2006F) of the second fluid control surface 1220F of the rotatable disk 122F directly faces the first equal division (the first portion 1201F) of the first fluid control surface 1210F of the fixed disk 121F, so that the fifth channel 105F of the plane valve 10F is communicated with the second channel 102F and the eighth channel 108F respectively, the sixth channel 106F is communicated with the third channel 103F and the raw water supplying channel 109F (if any), so as to allow the raw water to flow into the filtering device 20E through the raw water inlet 1105E, the eighth channel 108F, the fifth channel 105F, the second channel 102F, the second opening 1102E and the second communicating opening 202E. After the raw water back-flushes (Referring to the flow direction of the water in the primary filter 22F during the back-flushing is opposite to the flow direction of the water in the primary filter 22F during the filtering) the primary filter 22F of the filtering device 20E, it flows out through the first communicating opening 201E of the filtering device 20E, and then flows out through the first opening 1101E, the first channel 101F, the seventh channel 107F and the draining opening 1108E. Further, when the rotatable disk 122F of the plane valve 10F is rotated until the first equal division (the first region 2001F) of the second fluid control surface 1220F of the rotatable disk 122F directly faces the first equal division (the first portion 1201F) of the first fluid control surface 1210F of the fixed disk 121F, the third equal division (the third region 2003F) and the fourth equal division (the fourth region 2004F) of the second fluid control surface 1220F of the rotatable disk 122F of the plane valve 10F directly faces the third equal division (the third portion 1203F) and the fourth equal division (the fourth portion 1204F) of the first fluid control surface 1210F of the fixed disk 121F, the sixth equal division (the sixth region 2006F) of the second fluid control surface 1220F of the rotatable disk 122F directly faces the sixth equal division (the sixth portion 1206F) of the first fluid control surface 1210F of the fixed disk 121F, so that the fifth channel 105F is communicated with the first channel 101F and the eighth channel 108F respectively, the sixth channel 106F of the plane valve 10F is communicated with the second channel 102F and the third channel 103F respectively, so as to allow the raw water to flow into the filtering device 20E through the raw water inlet 1105E, the eighth channel 108F, the fifth channel 105F, the first channel 101F, the first opening 1101E and the first communicating opening 201E. After the raw water is filtered by the primary filter 22F of the filtering device 20E, it flows out through the purified water outlet 2201E and the second communicating opening 202E of the filtering device 20E, and then it flows out through the second opening 1102E, the second channel 102F, the sixth channel 106F, the third channel 103F and the third opening 1103E and is supplied. Further, when the rotatable disk 122F of the plane valve 10F is rotated until the first equal division (the first region 2001F) of the second fluid control surface 1220F of the rotatable disk 122F directly faces the sixth equal division (the sixth portion 1206F) of the first fluid control surface 1210F of the fixed disk 121F, the third equal division (the third region 2003F) and the fourth equal division (the fourth region 2004F) of the second fluid control surface 1220F of the rotatable disk 122F of the plane valve 10F directly faces the second equal division (the second portion 1202F) and the third equal division (the third portion 1203F) of the first fluid control surface 1210F of the fixed disk 121F, the sixth equal division (the sixth region 2006F) of the second fluid control surface 1220F of the rotatable disk 122F directly faces the fifth equal division (the fifth portion 1205F) of the first fluid control surface 1210F of the fixed disk 121F, so that the fifth channel 105F of the plane valve 10F is communicated with the fourth channel 104F and the eighth channel 108F respectively, so as to allow the raw water to flow through the raw water inlet 1105E, the eighth channel 108F, the fifth channel 105F, the fourth channel 104F, and then flow out through the first raw water opening 1104E and be supplied. Further, when the rotatable disk 122F of the plane valve 10F is rotated until the first equal division (the first region 2001F) of the second fluid control surface 1220F of the rotatable disk 122F directly faces the fifth equal division (the fifth portion 1205F) of the first fluid control surface 1210F of the fixed disk 121F, the third equal division (the third region 2003F) and the fourth equal division (the fourth region 2004F) of the second fluid control surface 1220F of the rotatable disk 122F of the plane valve 10F directly faces the first equal division (the first portion 1201F) and the second equal division (the second portion 1202F) of the first fluid control surface 1210F of the fixed disk 121F, the sixth equal division (the sixth region 2006F) of the second fluid control surface 1220F of the rotatable disk 122F directly faces the fourth equal division (the fourth portion 1204F) of the first fluid control surface 1210F of the fixed disk 121F, so that the fifth channel 105F of the plane valve 10F is communicated with the raw water supplying channel 109F (if any) and the eighth channel 108F respectively, so as to allow the raw water to flow through the raw water inlet 1105E, the eighth channel 108F, the fifth channel 105F, the raw water supplying channel 109F, and then flow out through the second raw water opening 1109E and be supplied.

It is worth mentioning that when the users need to switch the faucet water purifier according to the first embodiment of the present invention from the back-flushing working state to the filtering working state, only need to anticlockwise rotate the rotatable disk 122F of the plane valve 10F for one equal division angle, so that the first region 2001F of the second fluid control surface 1220F of the rotatable disk 122F directly faces the first portion 1201F of the first fluid control surface 1210F of the fixed disk 121F; when the users need to switch the faucet water purifier according to the first embodiment of the present invention from the filtering working state to the first raw water supplying working state, only need to anticlockwise rotate the rotatable disk 122F of the plane valve 10F for one equal division angle again, so that the first region 2001F of the second fluid control surface 1220F of the rotatable disk 122F directly faces the sixth portion 1206F of the first fluid control surface 1210F of the fixed disk 121F; when the users need to switch the faucet water purifier according to the first embodiment of the present invention from the first raw water supplying working state to the second raw water supplying working state, only need to anticlockwise rotate the rotatable disk 122F of the plane valve 10F for one equal division angle again, so that the first region 2001F of the second fluid control surface 1220F of the rotatable disk 122F directly faces the fifth portion 1205F of the first fluid control surface 1210F of the fixed disk 121F, as shown in FIG. 21A to FIG. 22D. In other words, the structure of the plane valve 10F of the faucet water purifier of the present invention enables the four working states of the second raw water supplying working state, the first raw water supplying working state, the filtering working state and the back-flushing working state to be continuously distributed, so that the complete switching between two adjacent working states of the second raw water supplying working state, the first raw water supplying working state, the filtering working state and the back-flushing working state of the faucet water purifier of the present invention can be realized only by rotating the rotatable disk 122F of the plane valve 10F for one equal division angle. The switching mode between the four working states of the faucet water purifier determined by the structure of the plane valve 10F of the faucet water purifier of the present invention will make the switching between the four working states of the faucet water purifier of the present invention more in line with the usage habits of the users and not easily cause an error in working state switching due to the different rotation angles when the users switch the working states. It is appreciated that since the edge portion 12102F of the first fluid control surface 1210F of the plane valve 10F of the faucet water purifier according to the first embodiment of the present invention is divided into six equal divisions, and the edge region 12202F of the second fluid control surface 1220F of the rotatable disk 122F of the plane valve 10F is divided into six equal divisions, accordingly, each time the faucet water purifier of the present invention realizes one working state switching, the rotatable disk 122F of the plane valve 10F rotates 60 degrees. In other words, one equal division angle of the rotatable disk 122F and the fixed disk 121F of the plane valve 10F is 60 degrees. Alternatively, the edge portion 12102F of the first fluid control surface 1210F are equally divided anticlockwise into the first portion 1201F, the second portion 1202F, the third portion 1203F, the fourth portion 1204F, the fifth portion 1205F and the sixth portion 1206F, the edge region 12202F of the second fluid control surface 1220F of the rotatable disk 122F of the plane valve 12F are equally divided anticlockwise into the first region 2001F, the second region 2002F, the third region 2003F, the fourth region 2004F, the fifth region 2005F and the sixth region 2006F. At this time, the structure of the plane valve 10F of the faucet water purifier of the present invention enables the four working states of the back-flushing working state, the filtering working state, the first raw water supplying working state and the second raw water supplying working state to be continuously distributed, so that the complete switching between two adjacent working states of the back-flushing working state, the filtering working state, the first raw water supplying working state and the second raw water supplying working state of the faucet water purifier of the present invention can be realized only by rotating the rotatable disk 122F of the plane valve 10F for one equal division angle.

As shown in FIG. 14 and FIG. 21A to FIG. 22D, the plane valve 10F of the faucet water purifier according to the first embodiment of the present invention further comprises a stopper 14F, wherein the stopper 14F is provided to prevent the invalid rotating of the rotatable disk 122F of the plane valve 10F relative to the fixed disk 121F. In other words, when the rotatable disk 122F of the plane valve 10F is rotated until the first region 2001F of the second fluid control surface 1220F of the rotatable disk 122F directly faces the second portion 1202F of the first fluid control surface 1210F of the fixed disk 121F, the faucet water purifier of the present invention is switched to the back-flushing working state, rotate clockwise the rotatable disk 122F of the plane valve 10F for an equal angle to communicate the fifth channel 105F and the seventh channel 107F of the plane valve 10F with the second channel 102F respectively, so as to make the raw water flow from the fifth channel 105F to the second channel 102F and further flow out through the seventh channel 107F; and when the rotatable disk 122F of the plane valve 10F is rotated until the first region 2001F of the second fluid control surface 1220F of the rotatable disk 122F directly faces the fifth portion 1205F of the first fluid control surface 1210F of the fixed disk 121F, the faucet water purifier of the present invention is switched to the second raw water supplying working state, rotate clockwise the rotatable disk 122F of the plane valve 10F for an equal angle, make the fifth channel 105F of the plane valve 10F be communicated with the third channel 103F, and make the raw water flow out through the third channel 103F. The above two rotation modes of the rotatable disk 122F of the plane valve 10F relative to the disk 121F cannot make the faucet water purifier of the present invention realize practical functions, which are invalid rotations.

As shown in FIG. 14 and FIG. 21A to FIG. 22D, the stopper 14F of the faucet water purifier according to the first embodiment of the present invention comprises a first stopping member 141F and a second stopping member 142F, wherein the first stopping member 141F and the second stopping member 142F are respectively provided on the valve body 11F, the first stopping member 141F is arranged to prevent the knob 80 from further clockwise rotation when the rotatable disk 122F of the plane valve 10F is rotated so that the first region 2001F of the second fluid control surface 1220F of the rotatable disk 122F directly faces the second portion 1202F of the first fluid control surface 1210F of the fixed disk 121F; the second stopping member 142F is provided to prevent the knob 80 from further anticlockwise rotation when the rotatable disk 122F of the plane valve 10F is rotated so that the rotatable disk 122F of the plane valve 10F is rotated until the first region 2001F of the second fluid control surface 1220F of the rotatable disk 122F directly faces the fifth portion 1205F of the first fluid control surface 1210F of the fixed disk 121F, so as to prevent the rotatable disk 122F of the plane valve 10F from rotating meaninglessly relative to the fixed disk 121F. The stopper 14F of the faucet water purifier according to the first embodiment of the present invention further comprises a blocker 143F, wherein the blocker 143F is provided at the knob 80 and protruded outward from the knob 80, so as to enable the blocker 143F to be blocked by the first stopping member 141F when the first region 2001F of the second fluid control surface 1220F of the rotatable disk 122F directly faces the second portion 1202F of the first fluid control surface 1210F of the fixed disk 121F, and be blocked by the second stopping member 142F when the rotatable disk 122F of the plane valve 10F is rotated so that the rotatable disk 122F of the plane valve 10F is rotated until the first region 2001F of the second fluid control surface 1220F of the rotatable disk 122F directly faces the fifth portion 1205F of the first fluid control surface 1210F of the fixed disk 121F.

As shown in FIG. 14 and FIG. 21A to FIG. 22D, the reminding mechanism 15F of the plane valve 10F of the faucet water purifier according to the first embodiment of the present invention comprises a driven member 151F and an elastic element 152F, wherein the driven member 151F comprises a driven end 1511F and a fixed end 1512F extended from the driven end 1511F, wherein the elastic element 152F is provided at the fixed end 1512F, the driven end 1511F is provided to face the knob 80, wherein when the user rotates the rotatable disk 122F of the plane valve 10F to make the first region 2001F of the second fluid control surface 1220F of the rotatable disk 122F directly face the second portion 1202F of the first fluid control surface 1210F of the fixed disk 121F, the driven end 1511F of the driven member 151F of the reminding mechanism 15F will block the blocker 143F, when the user increases the force to rotate the knob 80, the blocker 143F drives the driven end 1511F of the driven member 151F, so as to deform the elastic element 152F and continue to rotate the knob 80, and make the rotatable disk 122F continue to rotate and the first region 2001F of the second fluid control surface 1220F of the rotatable disk 122F directly face the second portion 1202F of the first fluid control surface 1210F of the fixed disk 121F. Preferably, the elastic element 152F is a spring.

As shown in FIG. 14, the valve body 11E further comprises a valve main body 111E and a valve housing 112E, wherein the valve housing 112E is provided on the outer surface of the valve main body 111E. It is appreciated that the first stopping member 141F, the second stopping member 142F and the reminding mechanism 15F are respectively provided at the valve housing 112E of the valve body 11E. Further, the valve housing 112E of the valve body 11E comprises an upper housing 1121E and a lower housing 1122E, wherein the upper housing 1121E and the lower housing 1122E of the valve housing 112E form a valve body cavity 1120E therebetween, wherein the valve body cavity 1120E is provided to receive the valve main body 111E of the valve body 11E.

As shown in FIG. 21A to FIG. 22D, according to the first embodiment of the present invention, the present invention further provides a valve disk assembly for a plane valve of a faucet water purifier, which comprises a fixed disk 121F and a rotatable disk 122F, wherein the fixed disk 121F has a first fluid control surface 1210F, the rotatable disk 122F has a second fluid control surface 1220F, wherein the rotatable disk 122F and the fixed disk 121F are both disposed inside the valve cavity 110E, wherein the second fluid control surface 1220F of the rotatable disk 122F is provided on the first fluid control surface 1210F of the fixed disk 121F, and the rotatable disk 122F is provided to be capable of rotating relative to the fixed disk 121F, wherein the plane valve 10F has a first channel 101F, a second channel 102F, a third channel 103F, a fourth channel 104F, a fifth channel 105F, a sixth channel 106F, a seventh channel 107F and an eight channel 108F, wherein the first channel 101F, the second channel 102F, the third channel 103F, the fourth channel 104F and the eighth channel 108F are provided at the fixed disk 121F respectively and extended from the first fluid control surface 1210F of the fixed disk 121F respectively; the fifth channel 105F, the sixth channel 106F and the seventh channel 107F are provided at the rotatable disk 122F respectively and extended from the second fluid control surface 1220F of the rotatable disk 122F respectively, wherein the first channel 101F is communicated with the first opening 1101E, the second channel 102F is communicated with the second opening 1102E, the third channel 103F is communicated with the third opening 1103E, the fourth channel 104F is communicated with the first raw water opening 1104E, the fifth channel 105F is communicated with the eighth channel 108F, the seventh channel 107F is communicated with the draining opening 1108E, the eighth channel 108F is communicated with the raw water inlet 1105E.

FIG. 23 to FIG. 25D illustrate another alternative embodiment of the control valve 10E of the faucet water purifier of a first embodiment of the present invention, wherein the control valve 10G comprises a valve body 11E and a valve core 12G, wherein the valve body 11E defines a valve cavity 110E, a first opening 1101E, a second opening 1102E, a third opening 1103E, a raw water inlet 1105E and a draining opening 1108E, wherein the valve core 12G is disposed inside the valve cavity 110E, wherein the first opening 1101E of the valve body 11E is adapted to be communicated with the first communicating opening 201E of the filtering device 20E, the second opening 1102E of the valve body 11E is adapted to be communicated with the second communicating opening 202E of the filtering device 20E, the third opening 1103E of the valve body 11E is adapted to be communicated with the first water outlet 100E of the filtering device 20E, the raw water inlet 1105E of the valve body 11E is adapted to be communicated with a raw water source (for example, a water outlet of a faucet).

As shown in FIG. 23 to FIG. 25D and FIG. 29A, the control valve 10G of the faucet water purifier according to the first embodiment of the present invention has a filtering working position, wherein when the control valve 10G is under the filtering working position, the valve core 12G of the control valve 10G defines a first communicating passage 1001G and a second communicating passage 1002G, wherein the first communicating passage 1001G is communicated with the first opening 1101E of the valve body 11E and the raw water inlet 1105E respectively, the second communicating passage 1002G is communicated with the second opening 1102E of the valve body 11E and the third opening 1103E respectively. Accordingly, when the control valve 10G is under the filtering working position, under the action of water pressure, the raw water or the tap water flows into the raw water inlet 1105E of the valve body 11E of the control valve 10G, and then flows to the first opening 1101E of the valve body 11E through the first communicating passage 1001G, so as to further flow to the raw water channel 2101E of the filtering device 20E through the first communicating opening 201E of the filtering device 20E, and after the raw water flowing into the raw water channel 2101E is filtered by the primary filter 22E, and the generated purified water can flow out from the purified water outlet 2201E of the primary filter 22E and flow to the second communicating opening 202E of the filtering device 20E. Therefore, the purified water generated by the primary filter 22E flows out from the second communicating opening 202E, and flows through the second opening 1102E, the second communicating passage 1002G and the third opening 1103E in sequence, so that the purified water generated by the primary filter 22E can be provided through the first water outlet 100E communicated with the third opening 1103E. It is appreciated that when the control valve 10G of the faucet water purifier according to the first embodiment of the present invention is controlled under the filtering working position, the faucet water purifier of the present invention is controlled under its filtering working state.

As shown in FIG. 23 to FIG. 25D and FIG. 29B, the control valve 10G of the faucet water purifier according to the first embodiment of the present invention has a back-flushing working position, wherein when the control valve 10G is under the back-flushing working position, the valve core 12G of the control valve 10G defines a third communicating passage 1003G and a fourth communicating passage 1004G, wherein the third communicating passage 1003G is communicated with the second opening 1102E of the valve body 11E and the raw water inlet 1105E respectively, the fourth communicating passage 1004G is communicated with the first opening 1101E of the valve body 11E and the draining opening 1108E respectively. Accordingly, when the control valve 10G is under the back-flushing working position, under the action of water pressure, the raw water or the tap water flows into the raw water inlet 1105E of the valve body 11E of the control valve 10G, and then flows into the second opening 1102E of the valve body 11E through the third communicating passage 1003G, and further flows into the filtering device 20E through the second communicating opening 202E of the filtering device 20E, the raw water flows into the primary filter 22E through the purified water outlet 2201E of the primary filter 22E under the action of water pressure, after the raw water back-flushes the primary filter 22E, the generated waste water flows into the raw water channel 2101E. At this time, since the first opening 1101E of the valve body 11E is communicated with the draining opening 1108E through the fourth communicating passage 1004G, therefore, the waste water generated by using the raw water to back-flush the primary filter 22E flows into the raw water channel 2101E and flows out from the first communicating opening 201E, and then flows through the first opening 1101E, the fourth communicating passage 1004G and the draining opening 1108E in sequence, so that the waste water generated by using the raw water to back-flush the primary filter 22E can flow out through the draining opening 1108E. It is appreciated that when the control valve 10G of the faucet water purifier according to the first embodiment of the present invention is controlled under the back-flushing working position, the faucet water purifier of the present invention is controlled under its back-flushing working state.

As shown in FIG. 23 to FIG. 25D and FIG. 29C, the control valve 10G of the faucet water purifier according to the first embodiment of the present invention further has a first raw water opening 1104E, wherein the control valve 10G further comprises a first raw water supplying working position, wherein when the control valve 10G is under the first raw water supplying working position, the valve core 12G of the control valve 10G defines a fifth communicating passage 1005G, wherein the fifth communicating passage 1005G is communicated with the raw water inlet 1105E and the first raw water opening 1104E of the valve body 11E respectively. Accordingly, when the control valve 10G is under the first raw water supplying working position, under the action of water pressure, the raw water or the tap water flows into the raw water inlet 1105E of the valve body 11E of the control valve 10G, and then flows into the first raw water opening 1104E of the valve body 11E through the fifth communicating passage 1005G, such that the raw water can be provided by the first raw water opening 1104E. It is appreciated that when the control valve 10G of the faucet water purifier according to the first embodiment of the present invention is controlled under the first raw water supplying working position, the faucet water purifier of the present invention is controlled under its first raw water supplying working state.

As shown in FIG. 23 to FIG. 25D and FIG. 29D, the control valve 10G of the faucet water purifier according to the first embodiment of the present invention further has a second raw water opening 1109E, wherein the control valve 10G further comprises a second raw water supplying working position, wherein when the control valve 10G is under the second raw water supplying working position, the valve core 12G of the control valve 10G defines a sixth communicating passage 1006G, wherein the sixth communicating passage 1006G is communicated with the raw water inlet 1105E and the second raw water opening 1109E of the valve body 11E respectively. Accordingly, when the control valve 10G is under the second raw water supplying working position, under the action of water pressure, the raw water or the tap water flows into the raw water inlet 1105E of the valve body 11E of the control valve 10G, and then flows into the second raw water opening 1109E of the valve body 11E through the sixth communicating passage 1006G, such that the raw water can be provided by the second raw water opening 1109E. It is appreciated that when the control valve 10G of the faucet water purifier according to the first embodiment of the present invention is controlled under the second raw water supplying working position, the faucet water purifier of the present invention is controlled under its second raw water supplying working state.

As shown in FIG. 28A to FIG. 28F and FIG. 30A to FIG. 30D, the control valve 10G of the faucet water purifier according to the first embodiment of the present invention is a plane valve, wherein the valve core 12G of the plane valve 10G further comprises a fixed disk 121G and a rotatable disk 122G, wherein the fixed disk 121G has a first fluid control surface 1210G, the rotatable disk 122G has a second fluid control surface 1220G, wherein the rotatable disk 122G and the fixed disk 121G are both disposed inside the valve cavity 110E of the valve body 11E of the control valve 10G, wherein the second fluid control surface 1220G of the rotatable disk 122G is provided on the first fluid control surface 1210G of the fixed disk 121G, and the rotatable disk 122G is provided to be capable of rotating relative to the fixed disk 121G.

As shown in FIG. 23 to FIG. 25D, FIG. 28A to FIG. 28F and FIG. 30A to FIG. 30D, the plane valve 10G of the faucet water purifier according to the first embodiment of the present invention has a first channel 101G, a second channel 102G, a third channel 103G, a fourth channel 104G, a fifth channel 105G, a sixth channel 106G and a seventh channel 107G, wherein the first channel 101G, the second channel 102G, the third channel 103G, the fourth channel 104G and the seventh channel 107G are respectively arranged at the fixed disk 121G and extended from the first fluid control surface 1210E of the fixed disk 121G; the fifth channel 105G and the sixth channel 106G are respectively arranged at the rotatable disk 122G and extended from the second fluid control surface 1220G of the rotatable disk 122G, wherein the first channel 101G is communicated with the first opening 1101E, the second channel 102G is communicated with the second opening 1102E, the third channel 103G is communicated with the third opening 1103E, the fourth channel 104G is communicated with the first raw water opening 1104E, the fifth channel 105G is connected with the raw water inlet 1105E, the seventh channel 107E is communicated with the draining opening 1108E. Preferably, the fifth channel 105G is communicated with the valve cavity 110E of the valve body 11E, the raw water inlet 1105E is communicated with the valve cavity 110E of the valve body 11E, the sixth channel 106G of the rotatable disk 122G is a communicating blind hole.

As shown in FIG. 30A to FIG. 30D, the first fluid control surface 1210G of the fixed disk 121G of the plane valve 10G of the faucet water purifier according to the first embodiment of the present invention defines an inner portion 12101G and an edge portion 12102G extended outward from the inner portion 12101G, wherein the first channel 101G, the seventh channel 107G, the third channel 103G, the second channel 102G and the fourth channel 104G of the plane valve 10G are arranged clockwise at the edge portion 12102G of the first fluid control surface 1210G of the fixed disk 121G in this order, and the fifth channel 105G and the sixth channel 106G of the plane valve 10G are arranged clockwise at the second fluid control surface 1220G of the rotatable disk 122G in this order. Alternatively, the first channel 101G, the seventh channel 107G, the third channel 103G, the second channel 102G and the fourth channel 104G of the plane valve 10G are arranged anticlockwise at the first fluid control surface 1210G of the fixed disk 121G of the plane valve 10G in this order, the fifth channel 105G and the sixth channel 106G of the plane valve 10G are arranged at the second fluid control surface 1220G of the rotatable disk 122G. Preferably, the first channel 101G, the seventh channel 107G, the third channel 103G, the second channel 102G and the fourth channel 104G of the plane valve 10G are spacedly provided at the first fluid control surface 1210G of the fixed disk 121G.

As shown in FIG. 29A, FIG. 29B and FIG. 30A to FIG. 30D, the rotatable disk 122G of the plane valve 10G of the faucet water purifier according to the first embodiment of the present invention is capable of rotating relative to the fixed disk 121G, so that the plane valve 10G has a filtering working position and a back-flushing working position, wherein when the plane valve 10G is under the filtering working position, the fifth channel 105G of the plane valve 10G is communicated with the first channel 101G, so as to define the first communicating passage 1001G communicating with the raw water inlet 1105E and the first opening 1101E respectively, the sixth channel 106G is communicated with the second channel 102G and the third channel 103G respectively, so as to define the second communicating passage 1002G communicating with the second opening 1102E and the third opening 1103E respectively; when the plane valve 10G is under the back-flushing working position, the fifth channel 105G of the plane valve 10G is communicated with the second channel 102G, so as to define the third communicating passage 1003G communicating with the raw water inlet 1105E and the second opening 1102E respectively, the sixth channel 106G is communicated with the first channel 101G and the seventh channel 107G respectively, so as to define the fourth communicating passage 1004G communicating with the first opening 1101E and the draining opening 1108E respectively. As shown in FIG. 31B, when the plane valve 10G of the faucet water purifier according to the first embodiment of the present invention is under the back-flushing working position, the third channel 103G and the fourth channel 104G of the plane valve 10G are blocked (or closed) by the rotatable disk 122G.

As shown in FIG. 29C, FIG. 30A to FIG. 30D and FIG. 31C, when the control valve 10G of the faucet water purifier according to the first embodiment of the present invention is under the first raw water supplying working position, the fifth channel 105G of the plane valve 10G is communicated with the fourth channel 104G, so as to define a fifth communicating passage 1005G communicated with the raw water inlet 1105E and the first raw water opening 1104E of the valve body 11E respectively. Preferably, when the control valve 10G is under the first raw water supply working position, the fifth channel 105G of the control valve 10G is communicated with the fourth channel 104G, and the first channel 101G, the second channel 102G, the third channel 103G and the seventh channel 107G of the control valve 10G are covered by the rotatable disk 122G of the control valve 10G, so that the raw water can only flow into the fourth channel 104G.

As shown in FIG. 29C, FIG. 29D, FIG. 30A to FIG. 30D, FIG. 31C and FIG. 31D, the plane valve 10G of the water purifier according to the first embodiment of the present invention further has a raw water supplying channel 109G, wherein the raw water supplying channel 109G is arranged at the fixed disk 121G and extended from the first fluid control surface 1210G of the fixed disk 121G, the raw water supplying channel 109G is communicated with the second raw water opening 1109E, wherein when the plane valve 10G is under the second raw water supplying working position, the fifth channel 105G of the plane valve 10G is communicated with the raw water supplying channel 109G, so as to define the sixth communicating passage 1006G communicated with the raw water inlet 1105E and the second raw water opening 1109E respectively. Further, when the plane valve 10G is under the first raw water supplying working position, the first channel 101G, the second channel 102G and the seventh channel 107G of the plane valve 10G are blocked by the rotatable disk 122G of the control valve 10G respectively; wherein when the plane valve 10G is under the second raw water supplying position, the first channel 101G, the second channel 102G, the third channel 103G and the fourth channel 104G of the plane valve 10G is blocked (or closed) by the rotatable disk 122G respectively. Preferably, when the control valve 10G is under the second raw water supply working position, the fifth channel 105G of the control valve 10G is communicated with the raw water supplying channel 109G, the first channel 101G, the second channel 102G, the third channel 103G, the fourth channel 104G and the seventh channel 107G of the control valve 10G are covered by the rotatable disk 122G of the control valve 10G, so that the raw water can only flow into the raw water supplying channel 109G. It is appreciated that when the control valve 10G is under the first raw water supply working position, the raw water supply channel 109G of the control valve 10G is further covered by the rotatable disk 122G of the control valve 10G.

As shown in FIG. 26A, the fixed disk 121G of the valve core 12G of the plane valve 10G of the faucet water purifier according to the first embodiment of the present invention comprises an upper end portion 1211G, a lower end portion 1212G and a fixing portion 1213G provided between the upper end portion 1211G and the lower end portion 1212G, wherein the upper end portion 1211G defines the first fluid control surface 1210G of the fixed disk 121G, and the lower end portion 1212G is provided at the valve cavity 110E of the valve body 11E. Preferably, the lower end portion 1212G of the fixed disk 121G of the valve core 12G of the plane valve 10G of the faucet water purifier of the present invention is integrally provided at the inner wall of the valve body 11E of the plane valve 10G. As shown in FIG. 27A to FIG. 27F, the plane valve 10G of the faucet water purifier according to the first embodiment of the present invention further comprises a sealing assembly 13G, wherein the sealing assembly 13G has a first seal 131G, wherein the first seal 131G is provided between the upper end portion 1211G and the fixing portion 1213G of the fixed disk 121G. Further, the first seal 131G has a plurality of first sealing strips 1311G, the fixing portion 1213G of the fixed disk 121G has a plurality of first sealing grooves 12130G, wherein the first sealing grooves 12130G are provided to respectively surround the first channel 101G, the second channel 102G, the third channel 103G, the fourth channel 104G, the seventh channel 107G and the raw water supplying channel 109G (if any) of the fixed disk 121G, the first sealing strips 1311G of the first seal 131G are provided according to the first sealing grooves 12130G of the fixing portion 1213G, so that the first sealing strips 1311G of the first seal 131G can be engaged with the first sealing grooves 12130G of the fixing portion 1213G and realizes the sealing between the upper end portion 1211G and the fixing portion 1213G of the fixed disk 121G. It is appreciated that the first sealing grooves 12130G are defined at one side of the fixing portion 1213G, which faces the upper end portion 1211G. Further, the sealing assembly 13G has a second seal 132G, wherein the second seal 132G is provided between the fixing portion 1213G and the lower end portion 1212G of the fixed disk 121G. Further, the second seal 132G has a plurality of second sealing strips 1321G, the fixing portion 1213G of the fixed disk 121G has a plurality of second sealing grooves 12131G, wherein the second sealing grooves 12131G are provided to respectively surround the first channel 101G, the second channel 102G, the third channel 103G, the fourth channel 104G, the seventh channel 107G and the raw water supplying channel 109G (if any) of the fixed disk 121G, the second sealing strips 1321G of the second seal 132G are provided according to the second sealing grooves 12131G of the fixing portion 1213G, so that the second sealing strips 1321G of the second seal 132G can be engaged with the second sealing grooves 12131G of the fixing portion 1213G and realizes the sealing between the lower end portion 1212G and the fixing portion 1213G of the fixed disk 121G. It is appreciated that the second sealing grooves 12131G are defined at one side of the fixing portion 1213G, which faces the lower end portion 1212G.

As shown in FIG. 23, FIG. 26A to FIG. 27B, the sealing assembly 13G of the faucet water purifier according to the first embodiment of the present invention further comprises at least one first sealing ring 133G, wherein the first sealing ring 133G is provided at the outer surface of the fixing holder 41, so as to realize the sealing between the fixing holder 41 and the inner wall of the valve body 11E and prevent the raw water from flowing out between the fixing holder 41 and the inner wall of the valve body 11E. Further, the sealing assembly 13G comprises at least one second sealing ring 134G, wherein the second sealing ring 134G is provided between the valve rod 60 and the fixing holder 41, so as to realize the sealing between the valve rod 60 and the inner wall of the fixing holder 41 and prevent the raw water from flowing out between the valve rod 60 and the inner wall of the fixing holder 41.

As shown in FIG. 23 and FIG. 26A to FIG. 27H, the water inlet opening 401 of the fixing holder 41 of the fixing device 40 of the faucet water purifier according to the first embodiment of the present invention and the raw water inlet 1105E are both communicated with the valve cavity 110E of the valve body 11E, so that the accommodation chamber 410 of the fixing holder 41 is communicated with the raw water inlet 1105E of the valve body 11E through the water inlet opening 401 and the valve cavity 110E of the valve body 11E, and the raw water can flow into the accommodation chamber 410 of the fixing holder 41 through the raw water inlet 1105E of the valve body 11E. As shown in FIG. 23 and FIG. 26A to FIG. 27H, the accommodation chamber 410 of the fixing holder 41 of the fixing device 40 of the faucet water purifier according to the first embodiment of the present invention is provided to be adapted to accommodate the upper end portion 1211G of the fixed disk 121G and the rotatable disk 122G inside the accommodation chamber 410, the fifth channel 105G of the plane valve 10G is provided to communicate with the accommodation chamber 410 of the fixing holder 41, so that raw water can be provided to the fifth channel 105G of the plane valve 10G through the water inlet opening 401 and the accommodation chamber 410 of the fixing holder 41. In other words, the fifth channel 105G of the plane valve 10G is communicated with the raw water inlet 1105E of the valve body 11E through the accommodation chamber 410 of the fixing holder 41, the water inlet opening 401 and the valve cavity 110E of the valve body 11E. As shown in FIG. 23 and FIG. 26A to FIG. 27H, further, the upper end portion 1211G of the fixed disk 121G is adapted to be detachably clamped at the fixing portion 1213G of the fixed disk 121G, the fixing portion 1213G of the fixed disk 121G is adapted to be detachably clamped at the lower end portion 1212G of the fixed disk 121G, so that the upper end portion 1211G of the fixed disk 121G cannot rotate relative to the fixing portion 1213G, the fixing portion 1213G of the fixed disk 121G cannot rotate relative to the lower end portion 1212G.

As shown in FIG. 28A to FIG. 31D, the first fluid control surface 1210G of the fixed disk 121G of the plane valve 10G of the faucet water purifier according to the first embodiment of the present invention has an inner portion 12101G and an edge portion 12102G extended outward from the inner portion 12101G, which are shown by the dashed lines, wherein the inner portion 12101G and the edge portion 12102G are provided at a top end portion 1214G of the fixed disk 121G, and the edge portion 12102G (or the part other than the inner portion 12101G) of the first fluid control surface 1210G are equally divided into a first portion 1201G, a second portion 1202G, a third portion 1203G, a fourth portion 1204G, a fifth portion 1205G, a sixth portion 1206G and a seventh portion 1207G, which are shown by the dashed lines, the second fluid control surface 1220G of the rotatable disk 122G of the plane valve 10G has an inner region 12201G and an edge region 12202G extended outward from the inner region 12201G, which are shown by the dashed lines, wherein the inner region 12201G and the edge region 12202G are provided at a bottom end portion 1221G of the rotatable disk 122G, and the edge region 12202G (or the part other than the inner region 12201G) of the second fluid control surface 1220G are equally divided into a first region 2001G, a second region 2002G, a third region 2003G, a fourth region 2004G, a fifth region 2005G, a sixth region 2006G and a seventh region 2007G, which are shown by the dashed lines, wherein the first channel 101G is extended downward from the first portion 1201G of the first fluid control surface 1210G of the fixed disk 121G, the second channel 102G is extended downward from the fifth portion 1205G of the first fluid control surface 1210G of the fixed disk 121G, the third channel 103G is extended downward from the fourth portion 1204G of the first fluid control surface 1210G of the fixed disk 121G, the fourth channel 104G is extended downward from the seventh portion 1207G of the first fluid control surface 1210G of the fixed disk 121G, the fifth channel 105G is extended upward from the first region 2001G of the second fluid control surface 1220G of the rotatable disk 122G, the sixth channel 106G is extended upward from the fourth region 2004G and the fifth region 2005G of the second fluid control surface 1220G of the rotatable disk 122G, the seventh channel 107G is extended downward from the second portion 1202G of the first fluid control surface 1210G of the fixed disk 121G. As shown in FIG. 28A to FIG. 31D, preferably, the edge portion 12102G of the first fluid control surface 1210G are equally divided clockwise into the first portion 1201G, the second portion 1202G, the third portion 1203G, the fourth portion 1204G, the fifth portion 1205G, the sixth portion 1206G and the seventh portion 1207G, the edge region 12202G of the second fluid control surface 1220G of the rotatable disk 122G of the plane valve 12G are equally divided clockwise into the first region 2001G, the second region 2002G, the third region 2003G, the fourth region 2004G, the fifth region 2005G, the sixth region 2006G and the seventh region 2007G. Further, the raw water supplying channel 109G is extended downward from the sixth portion 1206G of the first fluid control surface 1210G of the fixed disk 121G. In other words, the first fluid control surface 1210G of the fixed disk 121G of the plane valve 10G defines seven equal divisions, and the second fluid control surface 1220G of the rotatable disk 122G of the plane valve 10G defines seven equal divisions, when the rotatable disk 122G of the plane valve 10G is rotated until the first equal division (the first region 2001G) of the second fluid control surface 1220G of the rotatable disk 122G directly faces the first equal division (the first portion 1201G) of the first fluid control surface 1210G of the fixed disk 121G, the fourth equal division (the fourth region 2004G) and the fifth equal division (the fifth region 2005G) of the second fluid control surface 1220G of the rotatable disk 122G of the plane valve 10G directly faces the fourth equal division (the fourth portion 1204G) and the fifth equal division (the fifth portion 1205G) of the first fluid control surface 1210G of the fixed disk 121G, so that the fifth channel 105G is communicated with the first channel 101G, the sixth channel 106G of the plane valve 10G is communicated with the second channel 102G and the third channel 103G respectively, so as to allow the raw water to flow into the filtering device 20E through the raw water inlet 1105E, the fifth channel 105G, the first channel 101G, the first opening 1101G and the first communicating opening 201E. After the raw water is filtered by the primary filter 22G of the filtering device 20E, it flows out through the second communicating opening 202E of the filtering device 20E, and then it flows out through the second opening 1102E, the second channel 102G, the sixth channel 106G, the third channel 103G and the third opening 1103E and is supplied. Further, when the rotatable disk 122G of the plane valve 10G is rotated until the first equal division (the first region 2001G) of the second fluid control surface 1220G of the rotatable disk 122G directly faces the seventh equal division (the seventh portion 1207G) of the first fluid control surface 1210G of the fixed disk 121G, the fourth equal division (the fourth region 2004G) and the fifth equal division (the fifth region 2005G) of the second fluid control surface 1220G of the rotatable disk 122G of the plane valve 10G directly face the third equal division (the third portion 1203G) and the fourth equal division (the fourth portion 1204G) of the first fluid control surface 1210G of the fixed disk 121G, so that the fifth channel 105G of the plane valve 10G is communicated with the fourth channel 104G, so as to allow the raw water to flow through the raw water inlet 1105E, the fifth channel 105G, the fourth channel 104G, and then flow out through the first raw water opening 1104E and be supplied. Further, when the rotatable disk 122G of the plane valve 10G is rotated until the first equal division (the first region 2001G) of the second fluid control surface 1220G of the rotatable disk 122G directly faces the sixth equal division (the sixth portion 1206G) of the first fluid control surface 1210G of the fixed disk 121G, the fourth equal division (the fourth region 2004G) and the fifth equal division (the fifth region 2005G) of the second fluid control surface 1220G of the rotatable disk 122G of the plane valve 10G directly face the second equal division (the second portion 1202G) and the third equal division (the third portion 1203G) of the first fluid control surface 1210G of the fixed disk 121G, so that the fifth channel 105G of the plane valve 10G is communicated with the raw water supplying channel 109G (if any), so as to allow the raw water to flow through the raw water inlet 1105E, the fifth channel 105G, the raw water supplying channel 109G, and then flow out through the second raw water opening 1109E and be supplied. Further, when the rotatable disk 122G of the plane valve 10G is rotated until the first equal division (the first region 2001G) of the second fluid control surface 1220G of the rotatable disk 122G directly faces the fifth equal division (the fifth portion 1205G) of the first fluid control surface 1210G of the fixed disk 121G, the fourth equal division (the fourth region 2004G) and the fifth equal division (the fifth region 2005G) of the second fluid control surface 1220G of the rotatable disk 122G of the plane valve 10G directly faces the first equal division (the first portion 1201G) and the second equal division (the second portion 1202G) of the first fluid control surface 1210G of the fixed disk 121G, so that the fifth channel 105G is communicated with the second channel 102G, the sixth channel 106G of the plane valve 10G is communicated with the first channel 101G and the seventh channel 107G respectively, so as to allow the raw water to flow into the filtering device 20E through the raw water inlet 1105E, the fifth channel 105G, the second channel 102G, the second opening 1102E and the second communicating opening 202E. After the raw water back-flushes (Referring to the flow direction of the water in the primary filter 22E during the back-flushing is opposite to the flow direction of the water in the primary filter 22E during the filtering) the primary filter 22E of the filtering device 20E, the raw water flows out through the first communicating opening 201E of the filtering device 20E, and then flows out through the first opening 1101E, the first channel 101E, the sixth channel 106G, the seventh channel 107G and the draining opening 1108E.

It is worth mentioning that when the users need to switch the faucet water purifier according to the first embodiment of the present invention from the filtering working state to the first raw water supplying working state, only need to anticlockwise rotate the rotatable disk 122G of the plane valve 10G for one equal division angle, so that the first region 2001G of the second fluid control surface 1220G of the rotatable disk 122G directly faces the seventh portion 1207G of the first fluid control surface 1210G of the fixed disk 121G; when the users need to switch the faucet water purifier according to the first embodiment of the present invention from the first raw water supplying working state to the second raw water supplying working state, only need to anticlockwise rotate the rotatable disk 122G of the plane valve 10G for one equal division angle again, so that the first region 2001G of the second fluid control surface 1220G of the rotatable disk 122G directly faces the sixth portion 1206G of the first fluid control surface 1210G of the fixed disk 121G; when the users need to switch the faucet water purifier according to the first embodiment of the present invention from the second raw water supplying working state to the back-flushing working state, only need to anticlockwise rotate the rotatable disk 122G of the plane valve 10G for one equal division angle again, so that the first region 2001G of the second fluid control surface 1220G of the rotatable disk 122G directly faces the fifth portion 1205G of the first fluid control surface 1210G of the fixed disk 121G, as shown in FIG. 28A to FIG. 31D. In other words, the structure of the plane valve 10G of the faucet water purifier of the present invention enables the four working states of the back-flushing working state, the second raw water supplying working state, the first raw water supplying working state and the filtering working state to be continuously distributed, so that the complete switching between two adjacent working states of the back-flushing working state, the second raw water supplying working state, the first raw water supplying working state and the filtering working state of the faucet water purifier of the present invention can be realized only by rotating the rotatable disk 122G of the plane valve 10G for one equal division angle. The switching mode between the four working states of the faucet water purifier determined by the structure of the plane valve 10G of the faucet water purifier of the present invention will make the switching between the four working states of the faucet water purifier of the present invention more in line with the usage habits of the users and not easily cause an error in working state switching due to the different rotation angles when the users switch the working states. It is appreciated that since the edge portion 12102G of the first fluid control surface 1210G of the plane valve 10G of the faucet water purifier according to the first embodiment of the present invention is divided into seven equal divisions, and the edge region 12202G of the second fluid control surface 1220G of the rotatable disk 122G of the plane valve 10G is divided into seven equal divisions, accordingly, each time the faucet water purifier of the present invention realizes one working state switching, the rotatable disk 122G of the plane valve 10G rotates 51 and 3/7 degrees. In other words, one equal division angle of the rotatable disk 122G and the fixed disk 121G of the plane valve 10G is 51 and 3/7 degrees. Alternatively, the edge portion 12102G of the first fluid control surface 1210G are equally divided anticlockwise into the first portion 1201G, the second portion 1202G, the third portion 1203G, the fourth portion 1204G, the fifth portion 1205G, the sixth portion 1206G and the seventh portion 1207G, the edge region 12202G of the second fluid control surface 1220G of the rotatable disk 122G of the plane valve 12G are equally divided anticlockwise into the first region 2001G, the second region 2002G, the third region 2003G, the fourth region 2004G, the fifth region 2005G, the sixth region 2006G and the seventh region 2007G. At this time, the structure of the plane valve 10G of the faucet water purifier of the present invention enables the four working states of the filtering working state, the first raw water supplying working state, the second raw water supplying working state and the back-flushing working state to be continuously distributed, so that the complete switching between two adjacent working states of the filtering working state, the first raw water supplying working state, the second raw water supplying working state and the back-flushing working state of the faucet water purifier of the present invention can be realized only by rotating the rotatable disk 122G of the plane valve 10G for one equal division angle.

As shown in FIG. 23 and FIG. 31A to FIG. 31D, the plane valve 10G of the faucet water purifier according to the first embodiment of the present invention further comprises a stopper 14G, wherein the stopper 14G is provided to prevent the invalid rotating of the rotatable disk 122G of the plane valve 10G relative to the fixed disk 121G. In other words, when the rotatable disk 122G of the plane valve 10G is rotated until the first region 2001G of the second fluid control surface 1220G of the rotatable disk 122G directly faces the fifth portion 1205G of the first fluid control surface 1210G of the fixed disk 121G, the faucet water purifier of the present invention is switched to the back-flushing working state, rotate anticlockwise the rotatable disk 122G of the plane valve 10G for an equal angle to communicate the fifth channel 105G with the third channel 103G of the plane valve 10G, so as to make the raw water flow from the fifth channel 105G into the third channel 103G; and when the rotatable disk 122G of the plane valve 10G is rotated until the first region 2001G of the second fluid control surface 1220G of the rotatable disk 122G directly faces the first portion 1201G of the first fluid control surface 1210G of the fixed disk 121G, the faucet water purifier of the present invention is switched to the filtering working state, rotate clockwise the rotatable disk 122G of the plane valve 10G for an equal angle, make the fifth channel 105G of the plane valve 10G be communicated with the seventh channel 107G, and make the raw water flow out through the seventh channel 107G. The above two rotation modes of the rotatable disk 122G of the plane valve 10G relative to the disk 121G cannot make the faucet water purifier of the present invention realize practical functions, which are invalid rotations.

As shown in FIG. 23 and FIG. 31A to FIG. 31D, the stopper 14G of the faucet water purifier according to the first embodiment of the present invention comprises a first stopping member 141G and a second stopping member 142G, wherein the first stopping member 141G and the second stopping member 142G are respectively provided on the valve body 11E, the first stopping member 141G is arranged to prevent the knob 80 from further clockwise rotation when the rotatable disk 122G of the plane valve 10G is rotated so that the first region 2001G of the second fluid control surface 1220G of the rotatable disk 122G directly faces the first portion 1201G of the first fluid control surface 1210G of the fixed disk 121G; the second stopping member 142G is provided to prevent the knob 80 from further anticlockwise rotation when the rotatable disk 122G of the plane valve 10G is rotated so that the rotatable disk 122G of the plane valve 10G is rotated until the first region 2001G of the second fluid control surface 1220G of the rotatable disk 122G directly faces the fifth portion 1205G of the first fluid control surface 1210G of the fixed disk 121G, so as to prevent the rotatable disk 122G of the plane valve 10G from rotating meaninglessly relative to the fixed disk 121G. The stopper 14G of the faucet water purifier according to the first embodiment of the present invention further comprises a blocker 143G, wherein the blocker 143G is provided at the knob 80 and protruded outward from the knob 80, so as to enable the blocker 143G to be blocked by the first stopping member 141G when the first region 2001G of the second fluid control surface 1220G of the rotatable disk 122G directly faces the first portion 1201G of the first fluid control surface 1210G of the fixed disk 121G, and be blocked by the second stopping member 142G when the rotatable disk 122G of the plane valve 10G is rotated so that the rotatable disk 122G of the plane valve 10G is rotated until the first region 2001G of the second fluid control surface 1220G of the rotatable disk 122G directly faces the fifth portion 1205G of the first fluid control surface 1210G of the fixed disk 121G.

As shown in FIG. 23 and FIG. 31A to FIG. 31D, the reminding mechanism 15G of the plane valve 10G of the faucet water purifier according to the first embodiment of the present invention comprises a driven member 151G and an elastic element 152G, wherein the driven member 151G comprises a driven end 1511G and a fixed end 1512G extended from the driven end 1511G, wherein the elastic element 152G is provided at the fixed end 1512G, the driven end 1511G is provided to face the knob 80, wherein when the user rotates the rotatable disk 122G of the plane valve 10G to make the first region 2001G of the second fluid control surface 1220G of the rotatable disk 122G directly face the fifth portion 1205G of the first fluid control surface 1210G of the fixed disk 121G, the driven end 1511G of the driven member 151G of the reminding mechanism 15G will block the blocker 143G, when the user increases the force to rotate the knob 80, the blocker 143G drives the driven end 1511G of the driven member 151G, so as to deform the elastic element 152G and continue to rotate the knob 80, and make the rotatable disk 122G continue to rotate and the first region 2001G of the second fluid control surface 1220G of the rotatable disk 122G directly face the fifth portion 1205G of the first fluid control surface 1210G of the fixed disk 121G. Preferably, the elastic element 152G is a spring.

As shown in FIG. 23, the valve body 11E further comprises a valve main body 111E and a valve housing 112E, wherein the valve housing 112E is provided on the outer surface of the valve main body 111E. It is appreciated that the first stopping member 141G, the second stopping member 142G and the reminding mechanism 15G are respectively provided at the valve housing 112E of the valve body 11E. Further, the valve housing 112E of the valve body 11E comprises an upper housing 1121E and a lower housing 1122E, wherein the upper housing 1121E and the lower housing 1122E of the valve housing 112E form a valve body cavity 1120E therebetween, wherein the valve body cavity 1120E is provided to receive the valve main body 111E of the valve body 11E.

As shown in FIG. 30A to FIG. 30D, according to the first embodiment of the present invention, the present invention further provides a valve disk assembly for a plane valve of a faucet water purifier, which comprises a fixed disk 121G and a rotatable disk 122G, wherein the fixed disk 121G has a first fluid control surface 1210G, the rotatable disk 122G has a second fluid control surface 1220G, wherein the rotatable disk 122G and the fixed disk 121G are both disposed inside the valve cavity 110E, wherein the second fluid control surface 1220G of the rotatable disk 122G is provided on the first fluid control surface 1210G of the fixed disk 121G, and the rotatable disk 122G is provided to be capable of rotating relative to the fixed disk 121G, wherein the plane valve 10G has a first channel 101G, a second channel 102G, a third channel 103G, a fourth channel 104G, a fifth channel 105G, a sixth channel 106G and a seventh channel 107G, wherein the first channel 101G, the second channel 102G, the third channel 103G, the fourth channel 104G and the seventh channel 107G are provided at the fixed disk 121G respectively and extended from the first fluid control surface 1210G of the fixed disk 121G respectively; the fifth channel 105G and the sixth channel 106G are provided at the rotatable disk 122G respectively and extended from the second fluid control surface 1220G of the rotatable disk 122G respectively, wherein the first channel 101G is communicated with the first opening 1101E, the second channel 102G is communicated with the second opening 1102E, the third channel 103G is communicated with the third opening 1103E, the fourth channel 104G is communicated with the first raw water opening 1104E, the fifth channel 105G is communicated with the raw water inlet 1105E, the seventh channel 107G is communicated with the draining opening 1108E.

FIG. 32 to FIG. 34E illustrate another alternative embodiment of the control valve 10E of the faucet water purifier of a first embodiment of the present invention, wherein the control valve 10H comprises a valve body 11E and a valve core 12H, wherein the valve body 11E defines a valve cavity 110E, a first opening 1101E, a second opening 1102E, a third opening 1103E, a raw water inlet 1105E and a draining opening 1108E, wherein the valve core 12H is disposed inside the valve cavity 110E, wherein the first opening 1101E of the valve body 11E is adapted to be communicated with the first communicating opening 201E of the filtering device 20E, the second opening 1102E of the valve body 11E is adapted to be communicated with the second communicating opening 202E of the filtering device 20E, the third opening 1103E of the valve body 11E is adapted to be communicated with a first water outlet 100E of the filtering device 20E, the raw water inlet 1105E of the valve body 11E is adapted to be communicated with a raw water source (for example, a water outlet of a faucet).

As shown in FIG. 32 to FIG. 34E and FIG. 38A, the control valve 10H of the faucet water purifier according to the first embodiment of the present invention has a filtering working position, wherein when the control valve 10H is under the filtering working position, the valve core 12H of the control valve 10H defines a first communicating passage 1001H and a second communicating passage 1002H, wherein the first communicating passage 1001H is communicated with the first opening 1101E of the valve body 11E and the raw water inlet 1105E respectively, the second communicating passage 1002H is communicated with the second opening 1102E of the valve body 11E and the third opening 1103E respectively. Accordingly, when the control valve 10H is under the filtering working position, under the action of water pressure, the raw water or the tap water flows into the raw water inlet 1105E of the valve body 11E of the control valve 10H, and then flows to the first opening 1101E of the valve body 11E through the first communicating passage 1001H, so as to further flow into the raw water channel 2101E of the filtering device 20E through the first communicating opening 201E of the filtering device 20E, after the raw water flowing into the raw water channel 2101E is filtered by the primary filter 22E, and the generated purified water can flow out from the purified water outlet 2201E of the primary filter 22E and flow to the second communicating opening 202E of the filtering device 20E. Therefore, the purified water generated by the primary filter 22E flows out from the second communicating opening 202E, and flows through the second opening 1102E, the second communicating passage 1002H and the third opening 1103E in sequence, so that the purified water generated by the primary filter 22E can be provided through the first water outlet 100E communicated with the third opening 1103E. It is appreciated that when the control valve 10H of the faucet water purifier according to the first embodiment of the present invention is controlled under the filtering working position, the faucet water purifier of the present invention is controlled under its filtering working state.

As shown in FIG. 32 to FIG. 34E and FIG. 38B, the control valve 10H of the faucet water purifier according to the first embodiment of the present invention has a back-flushing working position, wherein when the control valve 10H is under the back-flushing working position, the valve core 12H of the control valve 10H defines a third communicating passage 1003H and a fourth communicating passage 1004H, wherein the third communicating passage 1003H is communicated with the second opening 1102E of the valve body 11E and the raw water inlet 1105E respectively, the fourth communicating passage 1004H is communicated with the first opening 1101E of the valve body 11E and the draining opening 1108E respectively. Accordingly, when the control valve 10H is under the back-flushing working position, under the action of water pressure, the raw water or the tap water flows into the raw water inlet 1105E of the valve body 11E of the control valve 10H, and then flows into the second opening 1102E of the valve body 11E through the third communicating passage 1003H, and further flows into the filtering device 20E through the second communicating opening 202E of the filtering device 20E, the raw water flows into the primary filter 22E through the purified water outlet 2201E of the primary filter 22E under the action of water pressure, after the raw water back-flushes the primary filter 22E, the generated waste water flows into the raw water channel 2101E. At this time, since the first opening 1101E of the valve body 11E is communicated with the draining opening 1108E through the fourth communicating passage 1004H, therefore, the waste water generated by using the raw water to back-flush the primary filter 22E flows into the raw water channel 2101E and flows out from the first communicating opening 201E, and then flows through the first opening 1101E, the fourth communicating passage 1004H and the draining opening 1108E in sequence, so that the waste water generated by using the raw water to back-flush the primary filter 22E can flow out through the draining opening 1108E. It is appreciated that when the control valve 10H of the faucet water purifier according to the first embodiment of the present invention is controlled under the back-flushing working position, the faucet water purifier of the present invention is controlled under its back-flushing working state.

As shown in FIG. 32 to FIG. 34E and FIG. 38C, the control valve 10H of the faucet water purifier according to the first embodiment of the present invention further has a first raw water opening 1104E, wherein the control valve 10H further comprises a first raw water supplying working position, wherein when the control valve 10H is under the first raw water supplying working position, the valve core 12H of the control valve 10H defines a fifth communicating passage 1005H, wherein the fifth communicating passage 1005H is communicated with the raw water inlet 1105E and the first raw water opening 1104E of the valve body 11E respectively. Accordingly, when the control valve 10H is under the first raw water supplying working position, under the action of water pressure, the raw water or the tap water flows into the raw water inlet 1105E of the valve body 11E of the control valve 10H, and then flows into the first raw water opening 1104E of the valve body 11E through the fifth communicating passage 1005H, such that the raw water can be provided by the first raw water opening 1104E. It is appreciated that when the control valve 10H of the faucet water purifier according to the first embodiment of the present invention is controlled under the first raw water supplying working position, the faucet water purifier of the present invention is controlled under its first raw water supplying working state.

As shown in FIG. 32 to FIG. 34E and FIG. 38D, the control valve 10H of the faucet water purifier according to the first embodiment of the present invention further has a second raw water opening 1109E, wherein the control valve 10H further comprises a second raw water supplying working position, wherein when the control valve 10H is under the second raw water supplying working position, the valve core 12H of the control valve 10H defines a sixth communicating passage 1006H, wherein the sixth communicating passage 1006H is communicated with the raw water inlet 1105E and the second raw water opening 1109E of the valve body 11E respectively. Accordingly, when the control valve 10H is under the second raw water supplying working position, under the action of water pressure, the raw water or the tap water flows into the raw water inlet 1105E of the valve body 11E of the control valve 10H, and then flows into the second raw water opening 1109E of the valve body 11E through the sixth communicating passage 1006H, such that the raw water can be provided by the second raw water opening 1109E. It is appreciated that when the control valve 10H of the faucet water purifier according to the first embodiment of the present invention is controlled under the second raw water supplying working position, the faucet water purifier of the present invention is controlled under its second raw water supplying working state.

As shown in FIG. 37A to FIG. 37F and FIG. 39A to FIG. 39D, the control valve 10H of the faucet water purifier according to the first embodiment of the present invention is a plane valve, wherein the valve core 12H of the plane valve 10H further comprises a fixed disk 121H and a rotatable disk 122H, wherein the fixed disk 121H has a first fluid control surface 1210H, the rotatable disk 122H has a second fluid control surface 1220H, wherein the rotatable disk 122H and the fixed disk 121H are both disposed inside the valve cavity 110E of the valve body 11E of the control valve 10H, wherein the second fluid control surface 1220H of the rotatable disk 122H is provided on the first fluid control surface 1210H of the fixed disk 121H, and the rotatable disk 122H is provided to be capable of rotating relative to the fixed disk 121H.

As shown in FIG. 33A to FIG. 34E, FIG. 37A to FIG. 37F and FIG. 39A to FIG. 39D, the plane valve 10H of the faucet water purifier according to the first embodiment of the present invention has a first channel 101H, a second channel 102H, a third channel 103H, a fourth channel 104H, a fifth channel 105H, a sixth channel 106H, a seventh channel 107H and an eighth channel 108H, wherein the first channel 101H, the second channel 102H, the third channel 103H, the fourth channel 104H, the seventh channel 107H and the eighth channel 108H are respectively arranged at the fixed disk 121H and extended from the first fluid control surface 1210H of the fixed disk 121H; the fifth channel 105H and the sixth channel 106H are respectively arranged at the rotatable disk 122H and extended from the second fluid control surface 1220H of the rotatable disk 122H, wherein the first channel 101H is communicated with the first opening 1101E, the second channel 102H is communicated with the second opening 1102E, the third channel 103H is communicated with the third opening 1103E, the fourth channel 104H is communicated with the first raw water opening 1104E, the fifth channel 105H is connected with the eighth channel 108H, the seventh channel 107H is connected with the draining opening 1108E, and the eighth channel 108H is communicated with the raw water inlet 1105E. Preferably, the sixth channel 106H and the fifth channel 105H of the rotatable disk 122H are communicating blind holes.

As shown in FIG. 39A to FIG. 39D, the first fluid control surface 1210H of the fixed disk 121H of the plane valve 10H of the faucet water purifier according to the first embodiment of the present invention defines an inner portion 12101H and an edge portion 12102H extended outward from the inner portion 12101H, wherein the eighth channel 108H of the plane valve 10H is arranged at the inner portion 12101H of the fixed disk 121H, the first channel 101H, the seventh channel 107H, the third channel 103H, the second channel 102H and the fourth channel 104H of the plane valve 10H are arranged clockwise at the edge portion 12102H of the first fluid control surface 1210H of the fixed disk 121H in this order, and the fifth channel 105H and the sixth channel 106H of the plane valve 10H are arranged clockwise at the second fluid control surface 1220H of the rotatable disk 122H in this order. Alternatively, the first channel 101H, the seventh channel 107H, the third channel 103H, the second channel 102H and the fourth channel 104H of the plane valve 10H are arranged anticlockwise at the first fluid control surface 1210H of the fixed disk 121H of the plane valve 10H in this order, the fifth channel 105H and the sixth channel 106H of the plane valve 10H are arranged anticlockwise at the second fluid control surface 1220H of the rotatable disk 122H. In other words, the first channel 101H, the seventh channel 107H, the third channel 103H, the second channel 102H and the fourth channel 104H of the plane valve 10H are arranged to surround the eighth channel 108H. Preferably, the first channel 101H, the seventh channel 107H, the third channel 103H, the second channel 102H, the fourth channel 104H and the eighth channel 108H of the plane valve 10H are spacedly provided at the first fluid control surface 1210H of the fixed disk 121H.

As shown in FIG. 38A, FIG. 38B and FIG. 40A to FIG. 40D, the rotatable disk 122H of the plane valve 10H of the faucet water purifier according to the first embodiment of the present invention is capable of rotating relative to the fixed disk 121H, so that the plane valve 10H has a filtering working position and a back-flushing working position, wherein when the plane valve 10H is under the filtering working position, the fifth channel 105H of the plane valve 10H is communicated with the first channel 101H and the eighth channel 108H respectively, so as to define the first communicating passage 1001H communicating with the raw water inlet 1105E and the first opening 1101E respectively, the sixth channel 106H is communicated with the second channel 102H and the third channel 103H respectively, so as to define the second communicating passage 1002H communicating with the second opening 1102E and the third opening 1103E respectively; when the plane valve 10H is under the back-flushing working position, the fifth channel 105H of the plane valve 10H is communicated with the second channel 102H and the eighth channel 108H respectively, so as to define the third communicating passage 1003H communicating with the raw water inlet 1105E and the second opening 1102E respectively, the sixth channel 106E is communicated with the first channel 101H and the seventh channel 107H respectively, so as to define the fourth communicating passage 1004H communicating with the first opening 1101E and the draining opening 1108E respectively. As shown in FIG. 40B, when the plane valve 10H of the faucet water purifier according to the first embodiment of the present invention is under the filtering working position, the fourth channel 104H and the seventh channel 107H of the plane valve 10H are blocked (or closed) by the rotatable disk 122H respectively, when the plane valve 10H of the faucet water purifier according to the first embodiment of the present invention is under the back-flushing working position, the fourth channel 104H and the third channel 103H of the plane valve 10H are blocked (or closed) by the rotatable disk 122H respectively.

As shown in FIG. 38C to FIG. 40C, when the control valve 10H of the faucet water purifier according to the first embodiment of the present invention is under the first raw water supplying working position, the fifth channel 105H of the plane valve 10H is communicated with the fourth channel 104H and the eighth channel 108H respectively, so as to define the fifth communicating passage 1005H communicated with the raw water inlet 1105E and the first raw water opening 1104E respectively. Preferably, when the control valve 10H is under the first raw water supply working position, the fifth channel 105H of the control valve 10H is communicated with the fourth channel 104H and the eighth channel 108H respectively, and the first channel 101H, the second channel 102H, the third channel 103H and the seventh channel 107H of the control valve 10H are covered by the rotatable disk 122H of the control valve 10H, so that the raw water can only flow into the fourth channel 104H.

As shown in FIG. 38C, FIG. 38B and FIG. 40C to FIG. 40D, the plane valve 10H of the water purifier according to the first embodiment of the present invention further has a raw water supplying channel 109H, wherein the raw water supplying channel 109H is arranged at the fixed disk 121H and extended from the first fluid control surface 1210H of the fixed disk 121H, the raw water supplying channel 109H is communicated with the second raw water opening 1109E, wherein when the plane valve 10H is under the second raw water supplying working position, the fifth channel 105H of the plane valve 10H is communicated with the raw water supplying channel 109H and the eighth channel 108H respectively, so as to define the sixth communicating passage 1006H communicated with the raw water inlet 1105E and the second raw water opening 1109E respectively. Further, when the plane valve 10H is under the first raw water supplying working position, the first channel 101H, the second channel 102H and the seventh channel 107H of the plane valve 10H are blocked by the rotatable disk 122H of the control valve 10H respectively; wherein when the plane valve 10H is under the second raw water supplying position, the first channel 101H, the second channel 102H, the third channel 103H and the fourth channel 104H of the plane valve 10H are blocked (or closed) by the rotatable disk 121H respectively. Preferably, when the control valve 10H is under the second raw water supply working position, the fifth channel 105H of the control valve 10H is communicated with the raw water supplying channel 109H and the eighth channel 108H respectively, and the first channel 101H, the second channel 102H, the third channel 103H, the fourth channel 104H and the seventh channel 107H of the control valve 10H are covered by the rotatable disk 122H of the control valve 10H respectively, so that the raw water can only flow into the raw water supplying channel 109H. It is appreciated that when the control valve 10H is under the first raw water supply working position, the raw water supply channel 109H of the control valve 10H is further covered by the rotatable disk 122H of the control valve 10H.

As shown in FIG. 35A, the fixed disk 121H of the valve core 12H of the plane valve 10H of the faucet water purifier according to the first embodiment of the present invention comprises an upper end portion 1211H, a lower end portion 1212H and a fixing portion 1213H provided between the upper end portion 1211H and the lower end portion 1212H, wherein the upper end portion 1211H defines the first fluid control surface 1210H of the fixed disk 121H, and the lower end portion 1212H is provided at the valve cavity 110E of the valve body 11E. Preferably, the lower end portion 1212H of the fixed disk 121H of the valve core 12H of the plane valve 10H of the faucet water purifier of the present invention is integrally provided at the inner wall of the valve body 11E of the plane valve 10H.

As shown in FIG. 32, FIG. 36A to FIG. 36H, the plane valve 10H of the faucet water purifier according to the first embodiment of the present invention further comprises a sealing assembly 13H, wherein the sealing assembly 13H has a first seal 131H, wherein the first seal 131H is provided between the upper end portion 1211H and the fixing portion 1213H of the fixed disk 121H. Further, the first seal 131H has a plurality of first sealing strips 1311H, the fixing portion 1213H of the fixed disk 121H has a plurality of first sealing grooves 12130H, wherein the first sealing grooves 12130H are provided to respectively surround the first channel 101H, the second channel 102H, the third channel 103H, the fourth channel 104H, the seventh channel 107H, the eighth channel 108H and the raw water supplying channel 109H (if any) of the fixed disk 121H, the first sealing strips 1311H of the first seal 131H are provided according to the first sealing grooves 12130H of the fixing portion 1213H, so that the first sealing strips 1311H of the first seal 131H can be engaged with the first sealing grooves 12130H of the fixing portion 1213H respectively and realizes the sealing between the upper end portion 1211H and the fixing portion 1213H of the fixed disk 121H. It is appreciated that the first sealing grooves 12130H are defined at one side of the fixing portion 1213H, which faces the upper end portion 1211H. Further, the sealing assembly 13H has a second seal 132H, wherein the second seal 132H is provided between the fixing portion 1213H and the lower end portion 1212H of the fixed disk 121H. Further, the second seal 132H has a plurality of second sealing strips 1321H, the fixing portion 1213H of the fixed disk 121H has a plurality of second sealing grooves 12131H, wherein the first sealing grooves 12131H are provided to respectively surround the first channel 101H, the second channel 102H, the third channel 103H, the fourth channel 104H, the seventh channel 107H, the eighth channel 108H and the raw water supplying channel 109H (if any) of the fixed disk 121H, the second sealing strips 1321H of the second seal 132H are provided according to the second sealing grooves 12131H of the fixing portion 1213H, so that the second sealing strips 1321H of the second seal 132H can be engaged with the second sealing grooves 12131H of the fixing portion 1213H respectively and realizes the sealing between the upper end portion 1211H and the fixing portion 1213H of the fixed disk 121H. It is appreciated that the second sealing grooves 12131H are defined at one side of the fixing portion 1213H, which faces the lower end portion 1212H.

As shown in FIG. 32, FIG. 35A and FIG. 36A to FIG. 36B, the accommodation chamber 410 of the fixing holder 41 of the fixing device 40 of the faucet water purifier according to the first embodiment of the present invention is provided to be adapted to accommodate the upper end portion 1211H of the fixed disk 121H and the rotatable disk 122H inside the accommodation chamber 410. As shown in FIG. 32, FIG. 35A and FIG. 36A to FIG. 36B, further, the upper end portion 1211H of the fixed disk 121H is adapted to be detachably clamped at the fixing portion 1213H of the fixed disk 121H, the fixing portion 1213H of the fixed disk 121H is adapted to be detachably clamped at the lower end portion 1212H of the fixed disk 121H, so that the upper end portion 1211H of the fixed disk 121H cannot rotate relative to the fixing portion 1213H, the fixing portion 1213H of the fixed disk 121H cannot rotate relative to the lower end portion 1212H.

As shown in FIG. 39A to FIG. 39D, the first fluid control surface 1210H of the fixed disk 121H of the plane valve 10H of the faucet water purifier according to the first embodiment of the present invention has an inner portion 12101H and an edge portion 12102H extended outward from the inner portion 12101H, which are shown by the dashed lines, wherein the inner portion 12101H and the edge portion 12102H are provided at a top end portion 1214H of the fixed disk 121H, and the edge portion 12102H (or the part other than the inner portion 12101H) of the first fluid control surface 1210H are equally divided into a first portion 1201H, a second portion 1202H, a third portion 1203H, a fourth portion 1204H, a fifth portion 1205H, a sixth portion 1206H and a seventh portion 1207H, which are shown by the dashed lines, the second fluid control surface 1220H of the rotatable disk 122H of the plane valve 10H has an inner region 12201H and an edge region 12202H extended outward from the inner region 12201H, which are shown by the dashed lines, wherein the inner region 12201H and the edge region 12202H are provided at a bottom end portion 1221H of the rotatable disk 122H, and the edge region 12202H (or the part other than the inner region 12201H) of the second fluid control surface 1220H are equally divided into a first region 2001H, a second region 2002H, a third region 2003H, a fourth region 2004H, a fifth region 2005H, a sixth region 2006H and a seventh region 2007H, which are shown by the dashed lines, wherein the first channel 101H is extended downward from the first portion 1201H of the first fluid control surface 1210H of the fixed disk 121H, the second channel 102H is extended downward from the fifth portion 1205H of the first fluid control surface 1210H of the fixed disk 121H, the third channel 103H is extended downward from the fourth portion 1204H of the first fluid control surface 1210H of the fixed disk 121H, the fourth channel 104H is extended downward from the seventh portion 1207H of the first fluid control surface 1210H of the fixed disk 121H, the fifth channel 105H is extended upward from the first region 2001H and the inner region 12201H of the second fluid control surface 1220H of the rotatable disk 122H, the sixth channel 106H is extended upward from the fourth region 2004H and the fifth region 2005H of the second fluid control surface 1220H of the rotatable disk 122H, the seventh channel 107H is extended downward from the second portion 1202H of the first fluid control surface 1210H of the fixed disk 121H, the eighth channel 108H is extended downward from the inner portion 12101H of the first fluid control surface 1210H of the fixed disk 121H. As shown in FIG. 39A to FIG. 39D, preferably, the edge portion 12102H of the first fluid control surface 1210H are equally divided clockwise into the first portion 1201H, the second portion 1202H, the third portion 1203H, the fourth portion 1204H, the fifth portion 1205H, the sixth portion 1206H and the seventh portion 1207H, the edge region 12202H of the second fluid control surface 1220H of the rotatable disk 122H of the plane valve 12H are equally divided clockwise into the first region 2001H, the second region 2002H, the third region 2003H, the fourth region 2004H, the fifth region 2005H, the sixth region 2006H and the seventh region 2007H. Further, the raw water supplying channel 109H is extended downward from the sixth portion 1206H of the first fluid control surface 1210H of the fixed disk 121H. In other words, the first fluid control surface 1210H of the fixed disk 121H of the plane valve 10H defines seven equal divisions, and the second fluid control surface 1220H of the rotatable disk 122H of the plane valve 10H defines seven equal divisions, when the rotatable disk 122H of the plane valve 10H is rotated until the first equal division (the first region 2001H) of the second fluid control surface 1220H of the rotatable disk 122H directly faces the first equal division (the first portion 1201H) of the first fluid control surface 1210H of the fixed disk 121H, the fourth equal division (the fourth region 2004H) and the fifth equal division (the fifth region 2005H) of the second fluid control surface 1220H of the rotatable disk 122H of the plane valve 10H directly faces the fourth equal division (the fourth portion 1204H) and the fifth equal division (the fifth portion 1205H) of the first fluid control surface 1210H of the fixed disk 121H, so that the fifth channel 105H is communicated with the first channel 101H and the eighth channel 108H respectively, the sixth channel 106H of the plane valve 10H is communicated with the second channel 102H and the third channel 103H respectively, so as to allow the raw water to flow into the filtering device 20E through the raw water inlet 1105E, the eighth channel 108H, the fifth channel 105H, the first channel 101H, the first opening 1101E and the first communicating opening 201E. After the raw water is filtered by the primary filter 22E of the filtering device 20E, it flows out through the second communicating opening 202E of the filtering device 20E, and then it flows out through the second opening 102E, the second channel 102H, the sixth channel 106H, the third channel 103H and the third opening 1103E and is supplied. Further, when the rotatable disk 122H of the plane valve 10H is rotated until the first equal division (the first region 2001H) of the second fluid control surface 1220H of the rotatable disk 122H directly faces the seventh equal division (the seventh portion 1207H) of the first fluid control surface 1210H of the fixed disk 121H, the fourth equal division (the fourth region 2004H) and the fifth equal division (the fifth region 2005H) of the second fluid control surface 1220H of the rotatable disk 122H of the plane valve 10H directly face the third equal division (the third portion 1203H) and the fourth equal division (the fourth portion 1204H) of the first fluid control surface 1210H of the fixed disk 121H, so that the fifth channel 105H of the plane valve 10H is communicated with the fourth channel 104H and the eighth channel 108H respectively, so as to allow the raw water to flow through the raw water inlet 1105E, the eighth channel 108H, the fifth channel 105H, the fourth channel 104H, and then flow out through the first raw water opening 1104E and be supplied. Further, when the rotatable disk 122H of the plane valve 10H is rotated until the first equal division (the first region 2001H) of the second fluid control surface 1220H of the rotatable disk 122H directly faces the sixth equal division (the sixth portion 1206H) of the first fluid control surface 1210H of the fixed disk 121H, the fourth equal division (the fourth region 2004H) and the fifth equal division (the fifth region 2005H) of the second fluid control surface 1220H of the rotatable disk 122H of the plane valve 10H directly face the second equal division (the second portion 1202H) and the third equal division (the third portion 1203H) of the first fluid control surface 1210H of the fixed disk 121H, so that the fifth channel 105H of the plane valve 10H is communicated with the raw water supplying channel 109H (if any) and the eighth channel 108H respectively, so as to allow the raw water to flow through the raw water inlet 1105E, the eighth channel 108H, the fifth channel 105H, the raw water supplying channel 109H, and then flow out through the second raw water opening 1109E and be supplied. Further, when the rotatable disk 122H of the plane valve 10H is rotated until the first equal division (the first region 2001H) of the second fluid control surface 1220H of the rotatable disk 122H directly faces the fifth equal division (the fifth portion 1205H) of the first fluid control surface 1210H of the fixed disk 121H, the fourth equal division (the fourth region 2004H) and the fifth equal division (the fifth region 2005H) of the second fluid control surface 1220H of the rotatable disk 122H of the plane valve 10H directly faces the first equal division (the first portion 1201H) and the second equal division (the second portion 1202H) of the first fluid control surface 1210H of the fixed disk 121H, so that the fifth channel 105H is communicated with the second channel 102H and the eighth channel 108H respectively, the sixth channel 106H of the plane valve 10H is communicated with the first channel 101H and the seventh channel 107H respectively, so as to allow the raw water to flow into the filtering device 20E through the raw water inlet 1105E, the eighth channel 108H, the fifth channel 105H, the second channel 102H, the second opening 1102E and the second communicating opening 202E. After the raw water back-flushes (Referring to the flow direction of the water in the primary filter 22E during the back-flushing is opposite to the flow direction of the water in the primary filter 22E during the filtering) the primary filter 22E of the filtering device 20E, the raw water flows out through the first communicating opening 201E of the filtering device 20E, and then flows out through the first opening 1101E, the first channel 101E, the sixth channel 106H, the seventh channel 107H and the draining opening 1108E.

It is worth mentioning that when the users need to switch the faucet water purifier according to the first embodiment of the present invention from the filtering working state to the first raw water supplying working state, only need to anticlockwise rotate the rotatable disk 122H of the plane valve 10H for one equal division angle, so that the first region 2001H of the second fluid control surface 1220H of the rotatable disk 122H directly faces the seventh portion 1207H of the first fluid control surface 1210H of the fixed disk 121H; when the users need to switch the faucet water purifier according to the first embodiment of the present invention from the first raw water supplying working state to the second raw water supplying working state, only need to anticlockwise rotate the rotatable disk 122H of the plane valve 10H for one equal division angle again, so that the first region 2001H of the second fluid control surface 1220H of the rotatable disk 122H directly faces the sixth portion 1206H of the first fluid control surface 1210H of the fixed disk 121H; when the users need to switch the faucet water purifier according to the first embodiment of the present invention from the second raw water supplying working state to the back-flushing working state, only need to anticlockwise rotate the rotatable disk 122H of the plane valve 10H for one equal division angle again, so that the first region 2001H of the second fluid control surface 1220H of the rotatable disk 122H directly faces the fifth portion 1205H of the first fluid control surface 1210H of the fixed disk 121H, as shown in FIG. 39A to FIG. 40D. In other words, the structure of the plane valve 10H of the faucet water purifier of the present invention enables the four working states of the back-flushing working state, the second raw water supplying working state, the first raw water supplying working state and the filtering working state to be continuously distributed, so that the complete switching between two adjacent working states of the back-flushing working state, the second raw water supplying working state, the first raw water supplying working state and the filtering working state of the faucet water purifier of the present invention can be realized only by rotating the rotatable disk 122H of the plane valve 10H for one equal division angle. The switching mode between the four working states of the faucet water purifier determined by the structure of the plane valve 10H of the faucet water purifier of the present invention will make the switching between the four working states of the faucet water purifier of the present invention more in line with the usage habits of the users and not easily cause an error in working state switching due to the different rotation angles when the users switch the working states. It is appreciated that since the edge portion 12102H of the first fluid control surface 1210H of the plane valve 10H of the faucet water purifier according to the first embodiment of the present invention is divided into seven equal divisions, and the edge region 12202H of the second fluid control surface 1220H of the rotatable disk 122H of the plane valve 10H is divided into seven equal divisions, accordingly, each time the faucet water purifier of the present invention realizes one working state switching, the rotatable disk 122H of the plane valve 10H rotates 51 and 3/7 degrees. In other words, one equal division angle of the rotatable disk 122H and the fixed disk 121H of the plane valve 10H is 51 and 3/7 degrees. Alternatively, the edge portion 12102H of the first fluid control surface 1210H are equally divided anticlockwise into the first portion 1201H, the second portion 1202H, the third portion 1203H, the fourth portion 1204H, the fifth portion 1205H, the sixth portion 1206H and the seventh portion 1207H, the edge region 12202H of the second fluid control surface 1220H of the rotatable disk 122H of the plane valve 12H are equally divided anticlockwise into the first region 2001H, the second region 2002H, the third region 2003H, the fourth region 2004H, the fifth region 2005H, the sixth region 2006H and the seventh region 2007H. At this time, the structure of the plane valve 10H of the faucet water purifier of the present invention enables the four working states of the filtering working state, the first raw water supplying working state, the second raw water supplying working state and the back-flushing working state to be continuously distributed, so that the complete switching between two adjacent working states of the filtering working state, the first raw water supplying working state, the second raw water supplying working state and the back-flushing working state of the faucet water purifier of the present invention can be realized only by rotating the rotatable disk 122H of the plane valve 10H for one equal division angle.

As shown in FIG. 32 and FIG. 39A to FIG. 40D, the plane valve 10H of the faucet water purifier according to the first embodiment of the present invention further comprises a stopper 14H, wherein the stopper 14H is provided to prevent the invalid rotating of the rotatable disk 122H of the plane valve 10H relative to the fixed disk 121H. In other words, when the rotatable disk 122H of the plane valve 10H is rotated until the first region 2001H of the second fluid control surface 1220H of the rotatable disk 122H directly faces the fifth portion 1205H of the first fluid control surface 1210H of the fixed disk 121H, the faucet water purifier of the present invention is switched to the back-flushing working state, rotate anticlockwise the rotatable disk 122H of the plane valve 10H for an equal angle to communicate the fifth channel 105H with the third channel 103H of the plane valve 10H, so as to make the raw water flow from the fifth channel 105H into the third channel 103H; and when the rotatable disk 122H of the plane valve 10H is rotated until the first region 2001H of the second fluid control surface 1220H of the rotatable disk 122H directly faces the first portion 1201H of the first fluid control surface 1210H of the fixed disk 121H, the faucet water purifier of the present invention is switched to the filtering working state, rotate clockwise the rotatable disk 122H of the plane valve 10H for an equal angle, make the fifth channel 105H of the plane valve 10H be communicated with the seventh channel 107H, and make the raw water flow out through the seventh channel 107H. The above two rotation modes of the rotatable disk 122H of the plane valve 10H relative to the disk 121H cannot make the faucet water purifier of the present invention realize practical functions, which are invalid rotations.

As shown in FIG. 32 and FIG. 39A to FIG. 40D, the stopper 14H of the faucet water purifier according to the first embodiment of the present invention comprises a first stopping member 141H and a second stopping member 142H, wherein the first stopping member 141H and the second stopping member 142H are respectively provided on the valve body 11E, the first stopping member 141H is arranged to prevent the knob 80 from further clockwise rotation when the rotatable disk 122H of the plane valve 10H is rotated so that the first region 2001H of the second fluid control surface 1220H of the rotatable disk 122H directly faces the first portion 1201H of the first fluid control surface 1210H of the fixed disk 121H; the second stopping member 142H is provided to prevent the knob 80 from further anticlockwise rotation when the rotatable disk 122H of the plane valve 10H is rotated so that the rotatable disk 122H of the plane valve 10H is rotated until the first region 2001H of the second fluid control surface 1220H of the rotatable disk 122H directly faces the fifth portion 1205H of the first fluid control surface 1210H of the fixed disk 121H, so as to prevent the rotatable disk 122H of the plane valve 10H from rotating meaninglessly relative to the fixed disk 121H. The stopper 14H of the faucet water purifier according to the first embodiment of the present invention further comprises a blocker 143H, wherein the blocker 143H is provided at the knob 80 and protruded outward from the knob 80, so as to enable the blocker 143H to be blocked by the first stopping member 141H when the first region 2001H of the second fluid control surface 1220H of the rotatable disk 122H directly faces the first portion 1201H of the first fluid control surface 1210H of the fixed disk 121H, and be blocked by the second stopping member 142H when the rotatable disk 122H of the plane valve 10H is rotated so that the rotatable disk 122H of the plane valve 10H is rotated until the first region 2001H of the second fluid control surface 1220H of the rotatable disk 122H directly faces the fifth portion 1205H of the first fluid control surface 1210H of the fixed disk 121H.

As shown in FIG. 32 and FIG. 39A to FIG. 40D, the plane valve 10H of the faucet water purifier according to the first embodiment of the present invention further comprises a reminding mechanism 15H, wherein the reminding mechanism 15H of the plane valve 10H of the faucet water purifier according to the first embodiment of the present invention comprises a driven member 151H and an elastic element 152H, wherein the driven member 151H comprises a driven end 1511H and a fixed end 1512H extended from the driven end 1511H, wherein the elastic element 152H is provided at the fixed end 1512H, the driven end 1511H is provided to face the knob 80, wherein when the user rotates the rotatable disk 122H of the plane valve 10H to make the first region 2001H of the second fluid control surface 1220H of the rotatable disk 122H directly face the fifth portion 1205H of the first fluid control surface 1210H of the fixed disk 121H, the driven end 1511H of the driven member 151H of the reminding mechanism 15H will block the blocker 143H, when the user increases the force to rotate the knob 80, the blocker 143H drives the driven end 1511H of the driven member 151H, so as to deform the elastic element 152H and continue to rotate the knob 80, and make the rotatable disk 122H continue to rotate and the first region 2001H of the second fluid control surface 1220H of the rotatable disk 122H directly face the fifth portion 1205H of the first fluid control surface 1210H of the fixed disk 121H. Preferably, the elastic element 152H is a spring.

As shown in FIG. 32, the valve body 11E further comprises a valve main body 111E and a valve housing 112E, wherein the valve housing 112E is provided on the outer surface of the valve main body 111E. It is appreciated that the first stopping member 141H, the second stopping member 142H and the reminding mechanism 15H are respectively provided at the valve housing 112E of the valve body 11E. Further, the valve housing 112E of the valve body 11E comprises an upper housing 1121E and a lower housing 1122E, wherein the upper housing 1121E and the lower housing 1122E of the valve housing 112E form a valve body cavity 1120E therebetween, wherein the valve body cavity 1120E is provided to receive the valve main body 111E of the valve body 11E.

As shown in FIG. 39A to FIG. 39D, according to the first embodiment of the present invention, the present invention further provides a valve disk assembly for a plane valve of a faucet water purifier, which comprises a fixed disk 121H and a rotatable disk 122H, wherein the fixed disk 121H has a first fluid control surface 1210H, the rotatable disk 122H has a second fluid control surface 1220H, wherein the rotatable disk 122H and the fixed disk 121H are both disposed inside the valve cavity 110E, wherein the second fluid control surface 1220H of the rotatable disk 122H is provided on the first fluid control surface 1210H of the fixed disk 121H, and the rotatable disk 122H is provided to be capable of rotating relative to the fixed disk 121H, wherein the plane valve 10H has a first channel 101H, a second channel 102H, a third channel 103H, a fourth channel 104H, a fifth channel 105H, a sixth channel 106H, a seventh channel 107H and an eight channel 108H, wherein the first channel 101H, the second channel 102H, the third channel 103H, the fourth channel 104H, the seventh channel 107H and the eighth channel 108H are provided at the fixed disk 121H respectively and extended from the first fluid control surface 1210H of the fixed disk 121H respectively; the fifth channel 105H and the sixth channel 106H are provided at the rotatable disk 122H respectively and extended from the second fluid control surface 1220H of the rotatable disk 122H respectively, wherein the first channel 101H is communicated with the first opening 1101E, the second channel 102H is communicated with the second opening 1102E, the third channel 103H is communicated with the third opening 1103E, the fourth channel 104H is communicated with the first raw water opening 1104E, the fifth channel 105H is communicated with the eighth channel 108H, the seventh channel 107H is communicated with the draining opening 1108E, the eighth channel 108H is communicated with the raw water inlet 1105E.

As shown in FIG. 41 to FIG. 45C, a faucet water purifier of a second embodiment of the present invention is illustrated, wherein the faucet water purifier of the present invention comprises a control valve 10 and a filtering device 20, wherein the control valve 10 is provided for controlling the flow of water, such as controlling the supply of raw water (or tap water) to the filtering device 20 and controlling the supply of the purified water generated or produced by treating the raw water by the filtering device 20.

As shown in FIG. 41 to FIG. 45C, the filtering device 20 of the faucet water purifier according to the second embodiment of the present invention comprises a outer casing 21, a primary filter 22 and a secondary filter 23, wherein the outer casing 21 defines a first accommodation cavity 210, the primary filter 22 defines a second accommodation cavity 220, wherein the primary filter 22 is disposed inside the first accommodation cavity 210 of the outer casing 21, the secondary filter 23 is disposed inside the second accommodation cavity 220 of the primary filter 22, and the outer casing 21 and the primary filter 22 define a raw water channel 2101 therebetween, the primary filter 22 and the secondary filter 23 define a purified water channel 2201 (the purified water channel 2201 can be regard as a part of the second accommodation cavity 220) therebetween, the secondary filter 23 has a purified water outlet 2301. Accordingly, since the secondary filter 23 is disposed inside the second accommodation cavity 220 of the primary filter 22, after the raw water flows into the raw water channel 2101 under the action of water pressure and is treated by the primary filter 22, the purified water generated by the primary filter 22 can flow to the secondary filter 23 under the action of water pressure and be treated by the secondary filter 23, and the cleaner secondary purified water is obtained, wherein the secondary purified water flows out through the purified water outlet 2301 under the action of water pressure, so as to be provided. Preferably, the primary filter 22 is a ceramic filter, and the secondary filter 23 is an external pressure type ultrafiltration filter, wherein the ultrafiltration membrane filaments 231 of the secondary filter 23 are disposed inside the second accommodation cavity 220 of the primary filter 22, so that the purified water channel 2201 is defined between the ultrafiltration membrane filaments 231 of the secondary filter 23 and the primary filter 22. Therefore, the purified water generated by the primary filter 22 can be further ultrafiltered by the secondary filter 23 under the action of water pressure, so as to obtain cleaner purified water (or ultrafiltration filtered water). It is appreciated that the primary filter may also be a filter made of other materials, or a composite filter made of multiple materials, for example, a composite filter composed of any two or more materials of ceramic, carbon fiber, PP cotton and activated carbon particles.

As shown in FIG. 41 to FIG. 45C, the filtering device 20 of the faucet water purifier according to the second embodiment of the present invention has a first communicating opening 201, a second communicating opening 202 and a third communicating opening 203, wherein the first communicating opening 201 of the filtering device 20 is communicated with the raw water channel 2101 of the filtering device 20, so that the control valve 10 can supply the raw water to the filtering device 20 through the first communicating opening 201, the second communicating opening 202 of the filtering device 20 is communicated with the purified water channel 2201, so that the purified water generated by treating the raw water by the primary filter 22 can flow to a second water outlet 200 of the faucet water purifier of the present invention under the control of the control valve 10 and be provided to the users, the third communicating opening 203 of the filtering device 20 is communicated with the purified water outlet 2301 of the secondary filter 23, so that the purified water generated by the secondary filter 23 can flow out through the third communicating opening 203, and be provided to the users through a first water outlet 100 of the faucet water purifier of the present invention under the control of the control valve 10. Preferably, the secondary filter 23 of the filtering device 20 of the faucet water purifier of the present invention is an external pressure type ultrafiltration filter. Accordingly, each ultrafiltration membrane filament 231 of the secondary filter 23 defines a membrane filament channel 2310, and the membrane filament channels 2310 of the ultrafiltration membrane filaments 231 are all communicated with the purified water outlet 2301 of the secondary filter 23, so that the purified water generated by each ultrafiltration membrane filament 231 of the secondary filter 23 can flow to the third communicating opening 203 of the filtering device 20 under the action of water pressure.

As shown in FIG. 41 to FIG. 45C, accordingly, when the filtering device 20 of the faucet water purifier according to the second embodiment of the present invention is used to treat the raw water, the users can control the raw water flowing to the first communicating opening 201 of the filtering device 20 through the control valve 10, and the raw water flows to the raw water channel 2101 of the filtering device 20 under the action of water pressure, then the purified water generated by the treatment of the primary filter 22 flows to the purified water channel 2201 under the action of water pressure, at this time, if the purified water inside the purified water channel 2201 can flow freely through the second communicating opening 202 of the filtering device 20 under the control of the control valve 10, and the purified water generated by the secondary filter 23 cannot flow freely to the third communicating opening 203, the purified water generated by the primary filter 22 will flow out and be provided under the action of water pressure through the second communicating opening 202. Accordingly, the faucet water purifier according to the second embodiment of the present invention is under a filtering working state at this time. On the other hand, if the purified water inside the purified water channel 2201 cannot flow freely through the second communicating opening 202 of the filtering device 20 under the control of the control valve 10, and the purified water generated by the secondary filter 23 can flow freely to the third communicating opening 203, the purified water generated by the primary filter 22 will be further purified by the secondary filter 23 under the action of water pressure, and the purified water generated by the secondary filter 23 will flow out and be provided through the third communicating opening 203. Accordingly, the faucet water purifier according to the second embodiment of the present invention is under an ultrafiltration filtering working state at this time. As shown in FIG. 41 to FIG. 45C, the faucet water purifier according to the second embodiment of the present invention further has a raw water supplying working state, wherein when the faucet water purifier of the present invention is under the raw water supplying working state, the user can control the raw water to flow directly to a raw water outlet and to be provided through the control valve 10E, instead of flowing through the filtering device 20 and being purified by the filtering device 20.

It is worth mentioning that, when the secondary filter 23 of the filtering device 20 of the faucet water purifier of the present invention is the external pressure type ultrafiltration filter, and the purified water generated by the primary filter 22 is able to flow out freely through the second communicating opening 202 of the filtering device 20, when the purified water generated by the primary filter 22 flows out through the second communicating opening 202 of the filtering device 20, the purified water generated by the primary filter 22 will flow through the ultrafiltration membrane filaments 231 of the secondary filter 23, so that the ultrafiltration membrane filaments 231 of the secondary filter 23 are flushed by the purified water generated by the primary filter 22. In other words, at this time, the filtering device 20 of the faucet water purifier of the present invention allows the purified water generated by the primary filter 22 to be provided, at the same time, the purified water generated by the primary filter 22 is further used to flush the ultrafiltration membrane filaments 231 of the secondary filter 23. Those skilled in the art know that the faucet water purifier directly installed on a faucet has a small size due to the restriction of the using space where it is located in. When the faucet water purifier adopts the ultrafiltration filter, especially the ultrafiltration filter with ultrafiltration membrane filaments as the main filter, the ultrafiltration filter is easily to stink and can no longer be used due to the accumulation of tap water impurities attached to the surface of its ultrafiltration membrane filaments, such as microorganisms, etc. The filtering device 20 of the faucet water purifier of the present invention allows the purified water generated by the primary filter 22 to be provided, at the same time, the purified water generated by the primary filter 22 is further used to flush the surfaces of the ultrafiltration membrane filaments 231 of the secondary filter 23, so as to prevent impurities such as microorganisms in the tap water from accumulating on the secondary filter 23 and prevent it from being unusable because of stinking. In other words, the faucet water purifier of the present invention uses the ingenious structural design of its filtering device 20 to solve the issue that when the traditional faucet water purifier uses the ultrafiltration filter (or ultrafiltration membrane filaments) to filter water, it is easy to cause impurities to accumulate and cannot be discharged in time and cause stinking, so that the ultrafiltration membrane filaments 231 of the secondary filter 23 have a better filtering effect and the service life of the secondary filter 23 is prolonged. More importantly, because of the small size of the traditional faucet water purifier, when it treats the raw water, such as tap water by utilizing the ultrafiltration filter, it will be blocked in a short time. The faucet water purifier of the present invention uses the purified water generated by the primary filter 22 to flush the ultrafiltration membrane filaments 231 of the secondary filter 23, which significantly improves the issue that the impurities accumulate and cannot be discharged in time when the traditional faucet water purifier uses the ultrafiltration filter (or ultrafiltration membrane filaments) to filter water, so that it is possible for the faucet water purifier to use the ultrafiltration filter to filter the water. The greater significance of the faucet water purifier of the present invention is that it may enable the consumers to get rid of the large and expensive traditional desktop water purifier. In addition, since the primary filter 22 of the faucet water purifier of the present invention is preferably a ceramic filter, although the purified water generated by its filtration is not suitable for direct drinking, the raw water is also preliminarily filtered and purified, and can be used for washing vegetables, washing face or mouth and so on.

As shown in FIG. 41 to FIG. 45C, the filtering device 20 of the faucet water purifier according to the second embodiment of the present invention further comprises a base 24, wherein the secondary filter 23 is provided at the base 24, and the base 24 defines a first water cavity 2401, wherein the first water cavity 2401 of the base 24 is communicated with the third communicating opening 203 of the filtering device 20 and the purified water outlet 2301 of the secondary filter 23 respectively. In other words, the membrane filament channel 2310 of the ultrafiltration membrane filament 231 of the secondary filter 23 is communicated with the third communicating opening 203 of the filtering device 20 through the purified water outlet 2301 of the secondary filter 23 and the first water cavity 2401 of the base 24, so that the secondary purified water generated by the secondary filter 23 can flow out through the third communicating opening 203. Preferably, the third communicating opening 203 is provided at the base 24. More preferably, the secondary filter 23 is water-hermetically provided at the base 24, and the secondary filter 23 and the base 24 define the first water cavity 2401 therebetween.

As shown in FIG. 41 to FIG. 45C, the primary filter 22 of the filtering device 20 of the faucet water purifier according to the second embodiment of the present invention is provided at the base 24, and the base 24 further defines a second water cavity 2402, wherein the second water cavity 2402 of the base 24 is communicated with the second communicating opening 202 of the filtering device 20 and the purified water channel 2201 respectively. In other words, the purified water channel 2201 of the filtering device 20 is communicated with the second communicating opening 202 of the filtering device 20 through the second water cavity 2402 of the base 24, so that the purified water generated by the primary filter 22 can flow out through the second communicating opening 202. Preferably, the second communicating opening 202 is provided at the base 24.

As shown in FIG. 41 to FIG. 45C, the primary filter 22 of the filtering device 20 of the faucet water purifier according to the second embodiment of the present invention is water-sealedly provided at the base 24, so as to prevent the raw water inside the raw water channel 2101 from flowing to the purified water channel 2201. More preferably, the primary filter 22 is detachably provided at the base 24, so that the primary filter 22 can be replaced. Alternatively, the primary filter 22 is water-hermetically provided at the outer casing 21, so that the raw water can only flow inside the raw water channel 2101. Alternatively, the primary filter 22 is detachably provided at the outer casing 21. Alternatively, the primary filter 22 is integrally provided at the base 24. Alternatively, the primary filter 22 is integrally provided at the outer casing 21.

As shown in FIG. 41 to FIG. 45C, the secondary filter 23 of the filtering device 20 of the faucet water purifier according to the second embodiment of the present invention further comprises a shell 232, wherein the ultrafiltration membrane filaments 231 of the secondary filter 23 are disposed inside the shell 232, and the shell 232 has at least one water inlet 2320, wherein the inner space and the outer space of the shell 232 are communicated with each other by the water inlet 2320 of the shell 232, so that when the faucet water purifier of the present invention is under the ultrafiltration filtering working state, the purified water generated by the primary filter 22 can flow to the ultrafiltration membrane filaments 231 through the water inlet 2320 of the shell 232 under the action of water pressure. Therefore, the water inlet 2320 of the shell 232 of the secondary filter 23 can be regard as a part of the purified water channel 2201 of the filtering device 20.

As shown in FIG. 41 to FIG. 45C, the base 24 of the filtering device 20 of the faucet water purifier according to the second embodiment of the present invention comprises a base bottom 241 and a first spacing portion 242, wherein the first spacing portion 242 is provided at the base bottom 241 and extended from the base bottom 241, wherein the first spacing portion 242 is provided between the first water cavity 2401 and the second water cavity 2402, so as to separate the first water cavity 2401 and the second water cavity 2402 from each other. Preferably, the base 24 further comprises a second spacing portion 243 provided at the base bottom 241 and extended from the base bottom 241, wherein the second water cavity 2402 is provided between the first spacing portion 242 and the second spacing portion 243, and the first water cavity 2401 is defined by the embracement of the first spacing portion 242. More preferably, the first spacing portion 242 and the second spacing portion 243 are both ring-shaped, and the second spacing portion 243 is provided at the outer side of the first spacing portion 242.

As shown in FIG. 41 to FIG. 45C, the first communicating opening 201 of the filtering device 20 of the faucet water purifier according to the second embodiment of the present invention is preferably provided at the base 24. Alternatively, the first communicating opening 201 of the filtering device 20 is provided at the outer casing 21. As shown in FIG. 41 to FIG. 45C, the outer casing 21 of the filtering device 20 of the faucet water purifier according to the second embodiment of the present invention is preferably provided at the edge of the base 24. Preferably, the outer casing 21 is integrated with the base 24.

As shown in FIG. 45A to FIG. 45C, the base 24 of the filtering device 20 of the faucet water purifier according to the second embodiment of the present invention further comprises a water supplying portion 245, wherein the water supplying portion 245 is extended from the base bottom 241, wherein the water supplying portion 245 defines the first water outlet 100.

As shown in FIG. 45A to FIG. 45C, further, the filtering device 20 of the water faucet purifier according to the second embodiment of the present invention further comprises a terminal filter 25, wherein the base bottom 241 and the water supplying portion 245 of the base 24 define a purifying cavity 2450 therebetween, wherein the terminal filter 25 is disposed inside the purifying cavity 2450, wherein the purifying cavity 2450 is provided communicating with a fifth opening 1105 of the control valve 10 and the first water outlet 100 respectively, so that the terminal filter 25 can further filter the purified water generated by the secondary filter 23 before it is provided to the users through the first water outlet 100. In other words, the terminal filter 25 is provided upstream of the first water outlet 100 and downstream of the fifth opening 1105 of the control valve 10 to further filter the purified water generated by the secondary filter 23, and then provides it to the users for using. Those skilled in the art will appreciate that the terminal filter 25 may also be made of carbon fiber or other filter materials to improve the taste of water. Preferably, the water supplying portion 245 is detachably provided at the base bottom 241 of the base 24, the terminal filter 25 is detachably provided at the purifying cavity 2450, so that the terminal filter 25 can be replaced. More preferably, the water supplying portion 245 is detachably screwed to the base bottom 241 of the base 24. Alternatively, the water supplying portion 245 is detachably clamped to the base bottom 241 of the base 24.

As shown in FIG. 43A to FIG. 44E, the base 24 of the faucet water purifier according to the second embodiment of the present invention is further provided with a communicating portion 246, wherein the communicating portion 246 has a first communicating channel 2461, a second communicating channel 2462 and a third communicating channel 2463, wherein the first communicating channel 2461 is provided to be communicated with the first communicating opening 201 and the raw water channel 2101 respectively, the second communicating channel 2462 is provided to be communicated with the second communicating opening 202 and the second water cavity 2402 respectively, the third communicating channel 2463 is provided to be communicated with the third communicating opening 203 and the first water cavity 2401 respectively. Further, the communicating portion 246 has a purified water supplying channel 2464, wherein the purified water supplying channel 2464 is provided communicating with the fifth opening 1105 and the first water outlet 100 respectively, so that the purified water generated by the secondary filter 23 of the filtering device 20 of the faucet water purifier of the present invention can flow out through the fifth opening 1105 of the control valve 10, and flows to the first water outlet 100 through the purified water supplying channel 2464. Preferably, the first communicating channel 2461 is provided between the first communicating opening 201 and the raw water channel 2101, the second communicating channel 2462 is provided between the second communicating opening 202 and the second water cavity 2402, the third communicating channel 2463 is provided between the third communicating opening 203 and the first water cavity 2401, the purified water supplying channel 2464 is provided between the fifth opening 1105 and the first water outlet 100. More preferably, the purified water supplying channel 2464 is provided communicating with the fifth opening 1105 and the purifying cavity 2450 respectively, so that the purified water supplying channel 2464 is capable of communicating with the first water outlet 100 through the purifying cavity 2450. Preferably, the first water outlet 100 comprises a plurality of water outlet holes.

It is worth mentioning that the terms of first, second, third, fourth, fifth, sixth, seventh, and/or eighth herein are only used to name different components (or elements) of the present invention and distinguish between different components, elements and structures of the present invention, they themselves have no meaning of order or number.

Those skilled in the art should understand that the embodiments of the present invention shown in the above description and the accompanying drawings are only examples and do not limit the present invention.

The objects of the present invention have been completely and effectively realized. The function and structural principle of the present invention have been shown and explained in the above embodiments. Without departing from the principle, the embodiments of the present invention can be deformed or modified.

Claims

1: A faucet water purifier, comprising: a filtering device, wherein the filtering device defines a first communicating opening and a second communicating opening; anda control valve, wherein the control valve comprises a valve body and a valve core, wherein the valve body defines a valve cavity, a first opening, a second opening, a third opening, a raw water inlet and a draining opening, wherein the valve core is provided inside the valve cavity, wherein the first opening of the valve body is adapted to be communicated with the first communicating opening of the filtering device, the second opening of the valve body is adapted to be communicated with the second communicating opening of the filtering device, the raw water inlet of the valve body is adapted to be communicated with a raw water source.

2: The faucet water purifier, as recited in claim 1, wherein the filtering device comprises an outer casing and a primary filter, wherein the outer casing defines a first accommodation cavity, wherein the primary filter is disposed inside the first accommodation cavity of the outer casing, and the outer casing and the primary filter define a raw water channel therebetween, the primary filter has a purified water outlet, wherein the first communicating opening of the filtering device is communicated with the raw water channel of the filtering device, the second communicating opening of the filtering device is communicated with the purified water outlet of the primary filter.

3: The faucet water purifier, as recited in claim 2, wherein when the control valve is under a filtering working position, the valve core of the control valve defines a first communicating passage respectively communicated with the first opening and the raw water inlet of the valve body and a second communicating passage respectively communicated with the second opening and the third opening of the valve body.

4: The faucet water purifier, as recited in claim 3, wherein when the control valve is under a back-flushing working position, the valve core of the control valve defines a third communicating passage respectively communicated with the second opening and the raw water inlet of the valve body and a fourth communicating passage respectively communicated with the first opening and the draining opening of the valve body.

5: The faucet water purifier, as recited in claim 4, wherein the valve body of the control valve further has a first raw water opening, when the control valve is under a first raw water supplying working position, the valve core of the control valve defines a fifth communicating passage respectively communicated with the first raw water opening and the raw water inlet of the valve body.

6: The faucet water purifier, as recited in claim 5, wherein the valve body of the control valve further has a second raw water opening, when the control valve is under a second raw water supplying working position, the valve core of the control valve defines a sixth communicating passage respectively communicated with the second raw water opening and the raw water inlet of the valve body.

7: The faucet water purifier, as recited in claim 5, wherein the control valve is a plane valve, wherein the valve core further comprises a fixed disk and a rotatable disk, wherein the fixed disk has a first fluid control surface, and the rotatable disk has a second fluid control surface, wherein the fixed disk and the rotatable disk are provided inside the valve cavity, wherein the second fluid control surface of the rotatable disk is provided on the first fluid control surface of the fixed disk, and the rotatable disk is capable of rotating relative to the fixed disk, wherein the plane valve has a first channel, a second channel, a third channel, a fourth channel, a fifth channel, a sixth channel, a seventh channel and an eighth channel, wherein the first channel, the second channel, the third channel, the fourth channel and the eighth channel are respectively provided at the fixed disk and extended from the first fluid control surface of the fixed disk; the fifth channel, the sixth channel and the seventh channel are respectively provided at the rotatable disk and extended from the second fluid control surface of the rotatable disk, wherein the first channel is communicated with the first opening, the second channel is communicated with the second opening, the third channel is communicated with the third opening, the fourth channel is communicated with the first raw water opening, the fifth channel is communicated with the raw water inlet, the seventh channel is communicated with the eighth channel and the eighth channel is communicated with draining opening, wherein when the plane valve is under the filtering working position, the fifth channel of the plane valve is communicated with the first channel, so as to define the first communicating passage communicated with the raw water inlet and the first opening respectively, and the sixth channel is communicated with the second channel and the third channel respectively, so as to define the second communicating passage communicated with the second opening and the third opening respectively.

8: The faucet water purifier, as recited in claim 7, wherein when the plane valve is under the back-flushing working position, the fifth channel of the plane valve is communicated with the second channel to define the third communicating passage respectively communicated with the raw water inlet and the second opening, and the seventh channel is respectively communicated with the first channel and the eighth channel, so as to define the fourth communicating passage respectively communicated with the first opening and the draining opening, when the plane valve is under the first raw water supplying working position, the fifth channel of the plane valve is communicated with the fourth channel, so as to define the fifth communicating passage respectively communicated with the raw water inlet and the first raw water opening.

9: The faucet water purifier, as recited in claim 5, wherein the control valve is a plane valve, wherein the valve core further comprises a fixed disk and a rotatable disk, wherein the fixed disk has a first fluid control surface, and the rotatable disk has a second fluid control surface, wherein the fixed disk and the rotatable disk are provided inside the valve cavity, wherein the second fluid control surface of the rotatable disk is provided on the first fluid control surface of the fixed disk, and the rotatable disk is capable of rotating relative to the fixed disk, wherein the plane valve has a first channel, a second channel, a third channel, a fourth channel, a fifth channel, a sixth channel, a seventh channel and an eighth channel, wherein the first channel, the second channel, the third channel, the fourth channel and the eighth channel are respectively provided at the fixed disk and extended from the first fluid control surface of the fixed disk; the fifth channel, the sixth channel and the seventh channel are respectively provided at the rotatable disk and extended from the second fluid control surface of the rotatable disk, wherein the first channel is communicated with the first opening, the second channel is communicated with the second opening, the third channel is communicated with the third opening, the fourth channel is communicated with the first raw water opening, the fifth channel is communicated with the eighth channel, the seventh channel is communicated with the draining opening, the eighth channel is communicated the raw water inlet, wherein when the plane valve is under the filtering working position, the fifth channel of the plane valve is communicated with the first channel and the eighth channel respectively, so as to define the first communicating passage communicated with the raw water inlet and the first opening respectively, and the sixth channel is communicated with the second channel and the third channel respectively, so as to define the second communicating passage communicated with the second opening and the third opening respectively.

10: The faucet water purifier, as recited in claim 9, wherein when the plane valve is under the back-flushing working position, the fifth channel of the plane valve is respectively communicated with the second channel and the eighth channel to define the third communicating passage respectively communicated with the raw water inlet and the second opening, and the seventh channel is communicated with the first channel, so as to define the fourth communicating passage respectively communicated with the first opening and the draining opening, when the plane valve is under the first raw water supplying working position, the fifth channel of the plane valve is respectively communicated with the fourth channel and the eighth channel, so as to define the fifth communicating passage respectively communicated with the raw water inlet and the first raw water opening.

11: The faucet water purifier, as recited in claim 5, wherein the control valve is a plane valve, wherein the valve core further comprises a fixed disk and a rotatable disk, wherein the fixed disk has a first fluid control surface, and the rotatable disk has a second fluid control surface, wherein the fixed disk and the rotatable disk are provided inside the valve cavity, wherein the second fluid control surface of the rotatable disk is provided on the first fluid control surface of the fixed disk, and the rotatable disk is capable of rotating relative to the fixed disk, wherein the plane valve has a first channel, a second channel, a third channel, a fourth channel, a fifth channel, a sixth channel and a seventh channel, wherein the first channel, the second channel, the third channel, the fourth channel and the seventh channel are respectively provided at the fixed disk and extended from the first fluid control surface of the fixed disk; the fifth channel and the sixth channel are respectively provided at the rotatable disk and extended from the second fluid control surface of the rotatable disk, wherein the first channel is communicated with the first opening, the second channel is communicated with the second opening, the third channel is communicated with the third opening, the fourth channel is communicated with the first raw water opening, the fifth channel is communicated with the raw water inlet and the seventh channel is communicated with the draining opening, wherein when the plane valve is under the filtering working position, the fifth channel of the plane valve is communicated with the first channel, so as to define the first communicating passage communicated with the raw water inlet and the first opening respectively, and the sixth channel is communicated with the second channel and the third channel respectively, so as to define the second communicating passage communicated with the second opening and the third opening respectively.

12: The faucet water purifier, as recited in claim 11, wherein when the plane valve is under the back-flushing working position, the fifth channel of the plane valve is communicated with the second channel to define the third communicating passage respectively communicated with the raw water inlet and the second opening, and the sixth channel is respectively communicated with the first channel and the seventh channel, so as to define the fourth communicating passage respectively communicated with the first opening and the draining opening, when the plane valve is under the first raw water supplying working position, the fifth channel of the plane valve is communicated with the fourth channel, so as to define the fifth communicating passage respectively communicated with the raw water inlet and the first raw water opening.

13: The faucet water purifier, as recited in claim 5, wherein the control valve is a plane valve, wherein the valve core further comprises a fixed disk and a rotatable disk, wherein the fixed disk has a first fluid control surface, and the rotatable disk has a second fluid control surface, wherein the fixed disk and the rotatable disk are provided inside the valve cavity, wherein the second fluid control surface of the rotatable disk is provided on the first fluid control surface of the fixed disk, and the rotatable disk is capable of rotating relative to the fixed disk, wherein the plane valve has a first channel, a second channel, a third channel, a fourth channel, a fifth channel, a sixth channel, a seventh channel and an eighth channel, wherein the first channel, the second channel, the third channel, the fourth channel, the seventh channel and the eighth channel are respectively provided at the fixed disk and extended from the first fluid control surface of the fixed disk; the fifth channel and the sixth channel are respectively provided at the rotatable disk and extended from the second fluid control surface of the rotatable disk, wherein the first channel is communicated with the first opening, the second channel is communicated with the second opening, the third channel is communicated with the third opening, the fourth channel is communicated with the first raw water opening, the fifth channel is communicated with the eighth channel, the seventh channel is communicated with the draining opening, the eighth channel is communicated the raw water inlet, wherein when the plane valve is under the filtering working position, the fifth channel of the plane valve is communicated with the first channel and the eighth channel respectively, so as to define the first communicating passage communicated with the raw water inlet and the first opening respectively, and the sixth channel is communicated with the second channel and the third channel respectively, so as to define the second communicating passage communicated with the second opening and the third opening respectively.

14: The faucet water purifier, as recited in claim 13, wherein when the plane valve is under the back-flushing working position, the fifth channel of the plane valve is communicated with the second channel and the eighth channel respectively to define the third communicating passage respectively communicated with the raw water inlet and the second opening, and the sixth channel is respectively communicated with the first channel and the seventh channel, so as to define the fourth communicating passage respectively communicated with the first opening and the draining opening, when the plane valve is under the first raw water supplying working position, the fifth channel of the plane valve is communicated with the fourth channel and the eighth channel respectively, so as to define the fifth communicating passage respectively communicated with the raw water inlet and the first raw water opening.

15: The faucet water purifier, as recited in claim 2, wherein the filtering device further comprises a base, wherein the primary filter is provided on the base, wherein the base comprises a base bottom and a water supplying portion, wherein the water supplying portion is extended from the base bottom, wherein the water supplying portion defines a first water outlet, wherein the first water outlet is communicated with the third opening of the control valve.

16: The faucet water purifier, as recited in claim 2, wherein the filtering device further comprises a brush, wherein the brush comprises a brush body, wherein the brush body is rotatably provided between the outer casing and the primary filter.

17: A filtering device for a faucet water purifier, comprising: an outer casing;a primary filter, wherein the outer casing defines a first accommodation cavity, wherein the primary filter is provided inside the first accommodation cavity of the outer casing, and the outer casing and the primary filter define a raw water channel therebetween, the primary filter has a purified water outlet, wherein the filtering device defines a first communicating opening and a second communicating opening, wherein the first communicating opening of the filtering device is communicated with the raw water channel of the filtering device, the second communicating opening of the filtering device is communicated with the purified water outlet of the primary filter.

18: The filtering device, as recited in claim 17, further comprising a base, wherein the primary filter is provided at the base, and the base defines a first water cavity, wherein the first water cavity of the base is communicated with the second communicating opening of the filtering device and the purified water outlet of the primary filter respectively.

19: The filtering device, as recited in claim 18, wherein the base comprises a base bottom and a first spacing portion, wherein the first spacing portion is extended from the base bottom, wherein the first water cavity is defined and embraced by the first spacing portion.

20: The filtering device, as recited in claim 18, wherein the base further comprises a base bottom, a communicating portion and a water supplying portion, wherein the water supplying portion is extended from the base bottom, wherein the communicating portion defines a purified water supplying channel, the water supplying portion defines a first water outlet, wherein the purified water supplying channel is communicated with the first water outlet.

21: The filtering device, as recited in claim 17, further comprising a brush, wherein the brush comprises a brush body, wherein the brush body is rotatably provided between the outer casing and the primary filter.