Patent Application
20200325668
This application claims the priority benefits of China application serial no. 201910294787.X, filed on Apr. 12, 2019. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of specification.
The invention relates to the technical field of sanitary ware, in particular to a water pre-storable toilet.
In the prior art, a washing circle water channel of an ordinary siphon-type toilet is connected to an injection duct. After flushing, air enters the injection duct from an overflow pipe, and the water inside the injection duct flows out from an injection hole at the bottom until the water level in the injection duct falls to the height of a water seal of a trap. Since an upper portion above the water seal of the injection duct is partially filled with gas, when the next flushing is performed, the water flowing down from a water tank is mixed and stirred with the gas inside the duct to discharge the air, which will cause greater energy loss, excessive noise, and slow siphon formation and so on.
In order to solve the above problems, there is a toilet that may pre-store water in the injection duct, that is, by changing the structure of the toilet, the air may not enter the injection duct. Through this way, the injection duct after flushing is still filled with water, the aforementioned problems can be avoided.
However, such water pre-storable toilet still has other problems: when the injection duct of the water pre-storable toilet is full of water and a drain valve is closed, since air may not enter the injection duct, the drain valve is adsorbed to a water inlet of the injection duct due to a negative pressure generated in the injection duct, and a user needs to spend more effort to open the drain valve, thus reducing the user's experience.
Therefore, in view of the technical problems, the water pre-storable toilet in the prior art has yet to be further improved to solve the problem that it is difficult for the user to drive the drain valve when there is a negative pressure in the injection duct.
The following is an overview of the topics detailed in this specification. This Summary is not intended to limit the scope of the claims.
The present application relates to a water pre-storable toilet with a drain valve between an injection duct and a water tank, wherein a float connected to the drain valve is further provided in the water tank in the water pre-storable toilet, the float is configured to apply an upward pulling force to the drain valve at least when a water level of the water tank reaches a highest water level, the float is also configured such that when the float applies the upward pulling force to the drain valve, a buoyancy of the float may not overcome a water pressure caused by the water in the water tank to the drain valve, a weight of the drain valve itself, and a negative pressure formed when a pre-stored water in the injection duct reaches the highest water level regardless of water lever of a water in the water tank, and thus can't open the drain valve; a specific formula of the negative pressure formed when the pre-stored water in the injection duct reaches the highest water level is as follows Pmax=ρwaterghmaxS; wherein, hmax is the difference between the highest water level of the pre-stored water and the water level of a trap water seal, and S is a pressure bearing area of the drain valve. Since the float is configured as above, the float may achieve the effect of reducing the pulling force for opening the drain valve, and when the injection duct is filled with water, that is, when the negative pressure in the injection duct reaches a maximum, the float cannot drive the drain valve to open, thereby avoiding waste of water.
It may be known from the above description of the invention that the invention has the following beneficial effects compared with the prior art:
1. Since the water tank is provided therein with the float connected to the drain valve, and the float is configured to apply the upward pulling force to the drain valve at least when the water level of the water tank reaches the highest water level, the float thus may achieve the effect of reducing the pulling force for opening the drain valve; further, since the float is also configured such that when the float applies the upward pulling force to the drain valve, the buoyancy of the float may not overcome the water pressure caused by the water in the water tank to the drain valve, the weight of the drain valve itself, and the negative pressure formed when the pre-stored water in the injection duct reaches the highest water level regardless of the water level of the water in the water tank, and thus when the injection duct is filled with water, that is, when the negative pressure in the injection duct reaches a maximum, the float cannot drive the drain valve to open, thereby the problem of wasting of water caused by undesired opening of the drain valve by the float can be avoided.
2. Since the float is also configured such that when the float applies the upward pulling force on the drain valve, the buoyancy of the float may not overcome the water pressure caused by the water in the water tank to the drain valve, the weight of the drain valve itself, and the negative pressure formed when the toilet bowl is filled with water and the pre-stored water in the injection duct reaches the highest water level regardless of the water level of the water in the water tank. Therefore, when the toilet is clogged, that is, when the negative pressure in the injection duct reaches a minimum, the float also cannot drive the drain valve to open, thus preventing undesired opening of the drain valve by the float and further preventing overflowing of the toilet water from the toilet bowl and the like.
3. Since the float is further configured such that when the float applies the upward pulling force on the drain valve, there is at least a first water level in the water tank that lower than or equal to the highest water level of the water tank, and under the first water level, the buoyancy of the float may overcome the water pressure caused by the water in the water tank to the drain valve and the weight of the drain valve itself, such that when there is no pre-stored water in the injection duct, that is, when there is no negative pressure in the injection duct, the drain valve may be driven to open by the float to replenish the injection duct. Therefore, this configuration eliminates the user's trouble of manually replenishing the injection duct when using the toilet for the first time, and provides the user with greater convenience.
4. Since the float and the drain valve are connected by a drawstring, the drawstring applies an upward pulling force to the drain valve at least when the water level of the water tank reaches the maximum water level. Therefore, the configuration may achieve the effect of reducing the pulling force for opening the drain valve; in addition, since the float and the drain valve in the present embodiment are connected by only one drawstring, the present embodiment has the characteristics of simple operation and easy implementation.
5. Since the water pre-storable toilet is further provided with an intake pipe in the water tank, one end of the intake pipe is connected to the injection duct, the other end is extending out of the highest water level of the water tank and is provided thereon with an intake valve, so that after the intake valve is opened, air may enter the injection duct from the intake pipe to eliminate or reduce the negative pressure in the injection duct by inflating the injection duct until the float may drive the drain valve to automatically open; therefore, this configuration may solve the problem that the drain valve is difficult to open.
6. Since the water pre-storable toilet is further provided with a housing in the water tank, the housing is sealedly connected to the injection duct, the wall thereof is provided with a water inlet, the drain valve is slidably connected to an inner wall of the housing, one end of the intake pipe passes through the drain valve and is sealedly and fixedly connected to the drain valve, and the other end is extending out of the highest water level of the water tank and is provided thereon with an intake valve for realizing or cutting off the connection between the intake pipe and the atmosphere, and the float is fixed on the intake pipe such that when the intake valve is opened, air enters the injection duct from the intake pipe to eliminate or reduce the negative pressure in the injection duct until the float may drive the drain valve to move upwards to open the drain valve and the water in the water tank may flow into the injection duct from the water inlet to replenish the injection duct; therefore, this configuration provides another specific embodiment for addressing the difficulty of opening the drain valve of a water pre-storable toilet.
7. Since the intake valve includes a weight and a pulling member, the weight and the pulling member are connected, and one end of the intake pipe extending out of the highest water level of the water tank is provided with an opening, so that when the pulling member pulls the weight, the weight leaves the opening, and the intake pipe is connected to the atmosphere; when the pulling member is released, the weight naturally falls under its own gravity and blocks the opening. Therefore, this configuration provides a specific structure of the intake valve for realizing or cutting off the connection between the intake pipe and the atmosphere.
8. Since the intake valve includes a cylinder, an upper cover, a plug, a pulling member, and a spring, an opening is provided between the cylinder and the intake pipe, the pulling member is connected to the plug, the upper cover is fixed at the cylinder and a through-hole for the pulling member or the plug to pass through is provided thereon, the spring is provided between the plug and the upper cover, so that when the pulling member is pulled, the plug leaves the opening, and when the pulling member is released, the spring is reset and drives the plug to block the opening; therefore, this configuration provides another specific structure of the intake valve for realizing or cutting off the connection between the intake pipe and the atmosphere.
9. Since the intake valve includes a pressing member, a spring, a plug, and a cover, the cover is fixed at the intake pipe and a via is provided thereon, and the connecting portion of the pressing member passes through the via and is fixedly connected to the plug located in the intake pipe, and the spring is provided between the pressing portion and the cover, so that when the pressing member is pressed, the plug is departed from the via, and when the pulling member is released, the spring is reset and drives the plug to block the via; therefore, this configuration provides another specific structure of the intake valve for realizing or cutting off the connection between the intake pipe and the atmosphere.
In order to more clearly illustrate the technical solutions of the embodiments of the invention, the drawings used in the description of the embodiments are briefly described below. It is obvious that the drawings in the following description are some embodiments of the invention. Those of ordinary skill in the art are able to obtain other figures from these drawings without creative effort.
In the present application, the term “water level of the water tank reaches the highest water level” means that the water in the water tank reaches the maximum value of the working water level.
Referring to
The injection duct 1 is for flushing the bottom of the toilet, and the drain valve 3 is provided between the injection duct 1 and the water tank 2;
The float 4 is provided in the water tank 2 and connected to the drain valve 3. In the present embodiment, the float 4 is a buoy, which is connected to the drawstring 7 of the drain valve 3, and when the drawstring 7 is straightened, the float 4 applies an upward pulling force to the drain valve 3; since the float 4 and the drain valve 3 are connected only by one drawstring 7, the present embodiment has the characteristics of simple operation and easy implementation.
The drawstring 7 is configured to be straightened at least when the water level of the water tank 2 reaches the highest water level, because if the length of the drawstring 7 is configured too long, then the situation in which the water in the water tank 2 reaches the highest water level but the drawstring 7 is not yet straightened and the buoy may not apply an upward pulling force to the drain valve occurs. Therefore, the buoy may not achieve the effect of driving the drain valve 3 to open. Conversely, if the length of the drawstring 7 is configured too short, the drawstring 7 may already be in a straightened state and drive the drain valve 3 to open when the water level in the water tank 2 does not reach a certain height, so that air also enters the injection duct 1 when water enters the injection duct 1. Therefore, in the embodiment, the drawstring 7 and the float 4 need to be configured separately;
The float 4 is configured to apply an upward pulling force to the drain valve 3 at least when the water level of the water tank 2 reaches the highest water level, and when the float 4 applies an upward pulling force to the drain valve 3, the buoyancy of the float 4 may not overcome the water pressure caused by the water in the water tank 2 to the drain valve 3, the weight of the drain valve 3 itself, and the negative pressure formed when the pre-stored water in the injection duct 1 reaches the highest water level regardless of the water level of the water in the water tank 2, thus can't open the drain valve 3, and the specific formula of the negative pressure formed when the pre-stored water in the injection duct 1 reaches the highest water level is Pmax=ρwaterghmaxS, wherein hmax is the difference between the highest water level of the pre-stored water and the water level of the trap water seal, S is the pressure bearing area of the drain valve 3, that is, when the negative pressure in the injection duct reaches a maximum, the drain valve 3 may not be driven to open by the float 4. Since the water tank 2 is provided therein with the float 4 connected to the drain valve 3, and the float 4 is configured to apply an upward pulling force to the drain valve 3 at least when the water level of the water tank reaches the highest water level, the float 4 may achieve the effect of reducing the pulling force for opening the drain valve 3; further, since the float 4 is also configured such that when the float 4 exerts an upward pulling force on the drain valve 3, the buoyancy of the float 4 may not overcome the water pressure caused by the water in the water tank 2 to the drain valve 3, the weight of the drain valve 3 itself, and the negative pressure formed when the pre-stored water in the injection duct 1 reaches the highest water level regardless of the water level of the water in the water tank 2, and when the injection duct 1 is filled with water, that is, when the negative pressure in the injection duct 1 reaches a maximum, the float 4 cannot drive the drain valve 3 to open, thereby the problem of wasting water caused by undesired opening of the drain valve 3 by the float 4 can be avoided.
The float 4 is also configured such that when the float 4 exerts an upward pulling force on the drain valve 3, the buoyancy of the float 4 may not overcome the water pressure caused by the water in the water tank 2 to the drain valve 3, the weight of the drain valve 3 itself, and the negative pressure formed when the toilet bowl is filled with water and the pre-stored water in the injection duct 1 reaches the highest water level to open the drain valve 3 regardless of the water level of the water in the water tank 2, and when the toilet bowl is filled with water and the pre-stored water in the injection duct 1 reaches the highest water level, the negative pressure formed is Pmin=ρwaterghminS(hmin>0), wherein hmin is the difference between the highest water level of the pre-stored water and the position of the upper surface of the outer edge of the toilet bowl, that is, even when the negative pressure in the injection duct 1 is minimized, the float still may not drive the drain valve 3 to open. Since the float 4 is also configured such that when the float 4 exerts an upward pulling force on the drain valve 3, the buoyancy of the float 4 may not overcome the water pressure caused by the water in the water tank 2 to the drain valve 3, the weight of the drain valve 3 itself, and the negative pressure formed when the toilet bowl is filled with water and the pre-stored water in the injection duct 1 reaches the highest water level regardless of the water level of the water in the water tank 2. Therefore, when the toilet is clogged, that is, when the negative pressure in the injection duct 1 is minimized, the float 4 also cannot drive the drain valve 3 to open. In this way, the float 4 is further prevented from driving the drain valve 3 to open when the drain valve 3 does not need to be opened, thereby the situations in which the toilet water overflows the toilet bowl and the like can be prevented.
The float 4 is further configured such that when the float 4 exerts an upward pulling force on the drain valve 3, at least a first water level exists in the water tank 2, and under the first water level, the buoyancy of the float 4 overcomes the water pressure of the water in the water tank to the drain valve 3 and the weight of the drain valve 3 itself to open the drain valve 3, and the first water level is lower than or equal to the highest water level of the water tank 2, that is, when there is no negative pressure or negative pressure disappears in the injection duct 1, the float 4 may drive the drain valve 3 to open, so as to replenish the injection duct 1; this configuration eliminates the user's trouble of manually replenishing the injection duct 1 when using the toilet for the first time, and provides the user with greater convenience.
It should be noted that, when the volume of the float 4 is configured, if the volume of the float 4 is configured too large, the float 4 may still drive the drain valve 3 to open when the negative pressure in the injection duct 1 is maximized, which will cause the waste of water resource; on the other hand, if the volume of the float 4 is configured too small, the float 4 cannot drive the drain valve 3 to open even when there is no negative pressure in the injection duct 1;
The intake pipe 5 is provided in the water tank 2, one end thereof is connected to the injection duct 1, and the other end thereof is extending out of the highest water level of the water tank 2.
The intake valve 6 is provided at one end of the intake pipe 5 extending out of the highest water level of the water tank 2, and is used for realizing or cutting off the connection between the intake pipe 5 and the atmosphere; in the present embodiment, the intake valve 6 may be a pull-type or push-type structure; via the above design, when the intake valve 3 is opened, air may enter the injection duct 1 from the intake pipe 5 to eliminate or reduce the negative pressure in the injection duct 1 by means of inflating the injection duct 1 until the float 4 may drive the drain valve 3 to automatically open; therefore, this configuration may solve the problem that the drain valve is difficult to be opened.
As shown in
When the intake valve 6 is a pull-type structure, the intake valve 6 may also be composed of a cylinder 63, an upper cover 64, a plug 61, a pulling member 62, a spring 65, and a sealing gasket 68, an opening 51 provided between the cylinder 63 and the intake pipe 5, the lifting member 62 and the plug 61 are connected by a connecting hole 611 provided at the top of the plug 61, the upper cover 64 is fixed on the cylinder 63, and a through-hole 641 is provided thereon to allow the pulling member 62 or the plug 61 to pass through, the spring 65 is provided between a protruding platform 612 formed at the bottom of the plug 61 and the upper cover 64, and the sealing gasket 68 is fixed to the bottom of the plug 61, an annular protuberance corresponding to the sealing gasket 68 is provided on the cylinder 63 and when the sealing gasket 68 is urging against the annular protuberance, the opening 51 is blocked; wherein when the pulling member 62 is pulled, the spring 65 is pressed, the plug 61 and the sealing gasket 68 are moved upwards and away from the annular protuberance, and the air inlet 631 provided at a side of the cylinder 63 is connected to the atmosphere. When the pulling member 62 is released, the spring 65 is reset, which drives the sealing gasket 68 to urge against the annular protuberance, and the opening 51 is blocked and the connection between the intake pipe 5 and the atmosphere is cut off.
As shown in
When the user uses the toilet for the first time, there is no pre-stored water in the injection duct 1, and when the water level in the water tank 2 rises to a certain height, the float 4 drives the drain valve 3 to open, and the water in the water tank 2 flows into the injection duct 1, and when the water level in the water tank 2 drops to a certain height, the drain valve 3 falls and is closed.
When the injection duct 1 is filled with water, the intake valve 6 is opened, the intake pipe 5 is connected to the atmosphere, air rapidly enters the injection duct 1 and the negative pressure of the injection duct 1 disappears or is reduced, and the float 4 drives the drain valve 3 to open.
Referring to
This configuration provides another specific embodiment that may be used to address the difficulty of opening the drain valve of a water pre-storable toilet.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201910294787.X | Apr 2019 | CN | national |
