Patent Application
20160319523
1. Field of the Invention
The present invention relates to an anti-freeze faucet structure, and more particularly to a rotatable anti-freeze faucet structure which avoids water accumulation as starting and then stopping water.
2. Description of the Prior Art
A conventional anti-freeze faucet is used in a low-temperature environment so as to prevent water from freezing therein because the water does not discharge completely. To further avoid foul water polluting an inlet pipe of the anti-freeze faucet in vacuum siphon effect after stopping water supply, a check structure is arranged in the anti-freeze faucet structure. Preferably, a vacuum breaking device is fixed in the anti-freeze faucet structure to prevent the anti-freeze faucet structure being broken by frozen water or being frozen. The vacuum breaking device is employed to flow air after starting and then stopping the water supply.
The anti-freeze faucet contains: a rotatable screwing control valve or a rotatable moving control valve made of ceramics material, wherein the rotatable moving control valve allows breaking vacuum after starting and then stopping the water supply. However, the ceramics material is expensive. The rotatable screwing control valve is manufactured at a low cost, but the vacuum cannot be broken after starting and then stopping the water supply.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages.
The primary objective of the present invention is to provide an anti-freeze faucet structure in which an inner screwing section of a first pipe screws with an outer screwing section of a first control valve to open or close an inlet, the first control valve and a second control valve are moved upwardly or downwardly, and a spring matches with a check valve, such that when the first control valve and the second control valve move upwardly or downwardly, a stopping plug and a water stop portion of the check valve correspondingly move, wherein when the stopping plug opens a water channel, the water stop portion stops flowing water between an aperture and a water passage, and when the stopping plug closes the water channel, the water stop portion starts flowing the water between the aperture and the water passage, thus starting or stopping the water at a low cost. In addition, a vacuum is broken after starting and then stopping the water.
An anti-freeze faucet structure provided by the present invention contains: a first pipe, a second pipe, a first control valve, a spring, a check valve, and a second control valve.
The first pipe includes an orifice defined on a first end thereof, an outlet adjacent to the orifice, an inlet formed on a second end thereof, a stop rim arranged on an inner wall thereof proximate to the inlet, and an inner screwing section arranged therein.
The second pipe is hollow and includes an aperture defined on one end thereof and communicating therewith, the second pipe also includes a rotatable knob mounted on a top end thereof, wherein the second pipe is disposed in the first pipe.
The first control valve is joined with the second pipe by using its upper end and includes a through hole formed therein and communicating with the aperture, the first control valve also includes an outer screwing section arranged around an outer wall of a lower end thereof to screw with the inner screwing section of the first pipe, such that the second pipe is rotated to control the first control valve to move upwardly or downwardly. The first control valve further includes a water passage above the outer screwing section and a water channel formed in the lower end thereof adjacent to the outer screwing section.
The spring is mounted in the through hole of the first control valve and its first end is stopped by a limiting rib in the through hole.
The check valve is secured in the through hole of the first control valve and is pushed by a second end of the spring, the check valve includes a stopping plug fixed on a first end thereof, wherein the stopping plug moves to open an opening of the check valve or to close the water channel of the first control valve. The check valve also includes a water stop portion for starting or stopping water among the aperture and the water passage. When the stopping plug opens the water channel, the water stop portion stops water between the aperture and the water passage, and when the stopping plug closes the water channel, the water stop portion starts the water between the aperture and the water passage.
The second control valve is connected with the water channel of the first control valve by its first end to position the spring and the check valve, the second control valve also includes an inlet channel arranged on an outer wall thereof and a close ring disposed on a second end thereof.
The present invention will be clearer from the following description when viewed together with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiment in accordance with the present invention.
Referring to
a first pipe 10 including an orifice 11 defined on a first end thereof, an outlet 12 adjacent to the orifice 11, an inlet 13 formed on a second end thereof, a stop rim 14 arranged on an inner wall thereof proximate to the inlet 13, and an inner screwing section 15 arranged therein, wherein the inner screwing section 15 is a multiple thread;
a second pipe 20 being hollow and including an aperture 21 defined on one end thereof and communicating therewith, the second pipe 20 also including a rotatable knob 22 mounted on a top end thereof, wherein the second pipe 20 is disposed in the first pipe 10;
a first control valve 30 joined with the second pipe 20 by using its upper end and including a through hole 31 formed therein and communicating with the aperture 21, the first control valve 30 also including an outer screwing section 32 arranged around an outer wall of a lower end thereof to screw with the inner screwing section 15 of the first pipe 10, such that the second pipe 20 is rotated to control the first control valve 30 to move upwardly or downwardly, and wherein the outer screwing section 32 is a multiple thread; the first control valve 30 further including a water passage 33 above the outer screwing section 33 and a water channel 34 formed in the lower end thereof adjacent to the outer screwing section 33;
a spring 40 mounted in the through hole 31 of the first control valve 30 and its first end being stopped by a limiting rib 35 in the through hole 31;
a check valve 50 secured in the through hole 31 of the first control valve 30 and pushed by a second end of the spring 40, the check valve 50 including an opening 51 defined in a first end thereof and extending to an intermediate section thereof, the check valve 50 also including a stopping plug 52 fixed on a second end thereof, wherein the opening 51 is closed or is opened in the through hole 31, the stopping plug 52 moves to open the opening 51 or to close the water channel 34 of the first control valve 30, the check valve 50 further including a water stop portion 53 for starting or stopping water among the aperture 21, the opening 51, and the water passage 33; when the stopping plug 52 opens the water channel 34, the water stop portion 53 stops water between the aperture 21 and the water passage 33; when the stopping plug 52 closes the water channel 34, the water stop portion 53 starts the water between the aperture 21 and the water passage 33;
a closing sleeve 60 secured in the water channel 34 of the first control valve 30 to stop the second end of the check valve 50 and to close the water channel 34 with the stopping plug 52;
a second control valve 70 including threads formed on a first end thereof to screw with the water channel 34 of the first control valve 30 and to position the spring 40, the check valve 50, and the closing sleeve 60, wherein the second control valve 70 also including an inlet channel 71 arranged on an outer wall thereof and a close ring 72 disposed on a second end thereof;
a single-direction washer 80 connected with the second pipe 20 between the outlet 12 of the first pipe 10 and the water passage 33 of the first control valve 30, and the single-direction washer 80 also coupled with the first control valve 30, such that the waters or air flows toward the outlet 12 of the first pipe 10 only.
Furthermore, at least one sealing ring 90 is fixed on the stopping plug 52 and the water stop portion 53 of the check valve 50, between the closing sleeve 60 and the first control valve 30, and between the outer screwing section 32 of the first control valve 30 adjacent to the inlet 13 and the first pipe 10.
As the anti-freeze faucet structure is not turned on, as shown in
As turning on the anti-freeze faucet structure, the rotatable knob 22 of the second pipe 20 drives the first control valve 30 to rotate, and then the water flows into the anti-freeze faucet structure, as illustrated in
As illustrated in
As desiring to stop the water, as illustrated in
Accordingly, the anti-freeze faucet structure of the present invention has advantages as follows:
The inner screwing section 15 of the first pipe 10 screws with the outer screwing section 32 of the first control valve 30, the inlet 13 is opened or closed, and the first control valve 30 and the second control valve 70 are moved upwardly or downwardly. Preferably, the spring 40 matches with the check valve 50 so that when the first control valve 30 and the second control valve 70 move upwardly or downwardly, the stopping plug 52 and the water stop portion 35 of the check valve 50 correspondingly move, wherein when the stopping plug 52 opens the water channel 34, the water stop portion 35 stops flowing the water between the aperture 21 and the water passage 33, while the stopping plug 52 closes the water channel 34, the water stop portion 53 starts flowing the water between the aperture 21 and the water passage 33, thus starting or stopping the water at a low cost. In addition, the vacuum is broken after starting and then stopping the water.
While we have shown and described various embodiments in accordance with the present invention, it is clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.
