CN110185106B - Water drainage device - Google Patents
Water drainage device Download PDFInfo
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- CN110185106B CN110185106B CN201910460864.4A CN201910460864A CN110185106B CN 110185106 B CN110185106 B CN 110185106B CN 201910460864 A CN201910460864 A CN 201910460864A CN 110185106 B CN110185106 B CN 110185106B
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- water
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- drain
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
- E03D1/34—Flushing valves for outlets; Arrangement of outlet valves
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Safety Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention provides a drainage device, which comprises a drainage pipe, a water stop component, a drainage valve and a pressure release valve, wherein a water inlet cavity, a water outlet cavity and a back pressure cavity are formed in the drainage pipe, the water outlet cavity and the back pressure cavity are isolated by the movable water stop component, the water stop component moves towards the direction of the water outlet cavity to isolate the water outlet cavity from the water inlet cavity, the water stop component moves towards the direction of the back pressure cavity to enable the water outlet cavity to be communicated with the water inlet cavity, the back pressure cavity is communicated with the water inlet cavity, and the drainage valve is used for controlling drainage of the back pressure cavity; the back pressure cavity is also communicated with a drainage passage, and the pressure relief valve is arranged on the drainage passage. When the water pressure at the water inlet end is too high, the pressure release valve is automatically opened to discharge the water of the back pressure cavity and the water discharge passage, and the normal mode of flushing the passage is opened to reduce the pressure of the water inlet cavity.
Description
Technical Field
The invention relates to the field of bathrooms, in particular to a drainage device applied to a toilet bowl.
Background
The toilet bowl is also called a closestool and is a bucket with a cover for relieving the bowels. The invention of the closestool is named as a great invention, and solves the problem that people eat and drink and spread by pulling.
Be equipped with the drainage device who is used for the drainage to wash in the closestool, simultaneously, in order to prevent to cause the damage to drainage device's drain valve structure because of external water pressure is too big, especially control drainage's positive pressure chamber and backpressure chamber isotructure, can set up the relief valve and realize the pressure release usually, when equipment or pipeline internal pressure surpassed the relief valve and set for pressure, automatically open the pressure release promptly, guarantee equipment and pipeline in medium pressure under the set for pressure, protection equipment and pipeline prevent accident. Because the water pressure exists at the front end of the drain switch, namely the position of the water inlet cavity, the pressure relief valve is generally arranged at the front end of the drain valve, namely the position of the water inlet cavity; if the water inlet pressure is overlarge, the water flow is directly discharged from the pressure release valve at the position of the water inlet cavity so as to protect other structures in the drainage device. The setting so can be because in order to guarantee sufficient pressure release capacity, therefore the through-flow area of pressure release hole can not be too little, will lead to the automatic piece that resets (like the spring) of relief valve like this to require highly, still will arrange the drainage pipe of pressure release simultaneously to lead to whole relief valve size great, occupy too big space, be unfavorable for integrating.
Disclosure of Invention
Therefore, the present invention provides a drainage device to solve the above problems.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a drainage device comprises a drainage pipe, a water stop component, a drainage valve and a pressure release valve, wherein a water inlet cavity, a water outlet cavity and a back pressure cavity are formed in the drainage pipe, the water outlet cavity and the back pressure cavity are isolated by the movable water stop component, the water stop component moves towards the direction of the water outlet cavity to isolate the water outlet cavity from the water inlet cavity, the water stop component moves towards the direction of the back pressure cavity to enable the water outlet cavity to be communicated with the water inlet cavity, the back pressure cavity is communicated with the water inlet cavity, and the drainage valve is used for controlling drainage of the back pressure cavity; the back pressure cavity is also communicated with a drainage passage, and the pressure relief valve is arranged on the drainage passage.
Further, be equipped with the pressure release hole on the drainage route, the relief valve includes: first seal assembly and first reset spring, first seal assembly corresponds the play water end in pressure release hole, first reset spring exerts the power towards the pressure release hole direction to first seal assembly all the time, first seal assembly seals under first reset spring's effect and blocks up the pressure release hole.
Furthermore, the drain valve includes manual drain valve, manual drain valve sets up on this drainage route, and manual drain valve's drainage water route and the pressure release water route of relief valve are parallelly connected water route for control the drainage in backpressure chamber respectively.
Further, a drain hole is formed in the drain passage, and the manual drain valve includes: the manual button is connected with the second connecting shaft, the second connecting shaft is driven by the manual button to overcome the acting force of the second reset spring and the water pressure borne by the sealing block to enable the second sealing block on the second connecting shaft to be separated from the drain hole, and then the on/off of the drainage channel is controlled.
Furthermore, the back pressure cavity is provided with a water outlet communicated with the water drainage passage, and the water outlet is arranged at the top of the back pressure cavity.
Further, the water drainage channel is communicated with the water outlet cavity.
Further, the stagnant water subassembly includes flexible seal membrane and fixed plate, the outer fringe of flexible seal membrane is sealed to be fixed in the cavity inner wall between play water cavity and the backpressure chamber, in order to keep apart play water cavity and backpressure chamber, fixed plate sealing connection is in the middle part position of flexible seal membrane.
Furthermore, the water outlet end of the water outlet cavity of the water outlet pipe is also provided with an anti-siphon structure.
Further, be equipped with the first seal port that the level set up in the drain pipe, prevent that siphon structure includes a gravity valve, a gravity valve liftable activity sets up directly over first seal port, a gravity valve closes in first seal port through the sealed lid of self gravity, the drain pipe rises and opens through the first gravity valve of the water pressure drive of end of intaking first seal port.
Furthermore, be equipped with the second seal port of slope or vertical setting in the drain pipe, anti-siphon structure includes second gravity valve, second gravity valve is the apron structure, second gravity valve pin joint in the upper end of second seal port to seal through self gravity and close in the second seal port, the drain pipe drives the upset of second gravity valve through the water pressure of intaking the end and opens the second seal port.
Through the technical scheme provided by the invention, the method has the following beneficial effects:
the back pressure chamber communicates with a drainage channel, a pressure release valve for pressure release drainage is arranged on the drainage channel, the water inlet chamber, the back pressure chamber and the drainage channel are of equal water pressure, when the water pressure of the water inlet end is too high, the pressure release valve is automatically opened, the water in the back pressure chamber and the drainage channel is discharged, the pressure is reduced during drainage of the back pressure chamber, the water stopping assembly is driven to move, a normal flushing channel is opened, and the pressure of the water inlet end (namely the water inlet chamber) is reduced by opening the normal flushing channel. This kind of structure breaks the conventional thinking that directly sets up the relief valve at the end of intaking (intake antrum promptly), and the relief valve as long as satisfy can let the water discharge of backpressure intracavity can, not high to the requirement of part (like reset spring), and need not additionally to increase the drainage pipe of pressure release again for the structure obtains simplification by a wide margin, and whole integrates easily, miniaturized.
Meanwhile, through the layout of the drainage channel, the setting position of the pressure release valve can be well controlled under the condition that the original layout of the back pressure cavity is not required to be changed, so that the structure is simple and convenient.
Drawings
Fig. 1 is an external view schematically showing a drain valve mechanism in an embodiment;
FIG. 2 is a first cross-sectional view of the valve train of the embodiment shown in a no-flush state;
FIG. 3 is a second sectional view of the valve mechanism of the embodiment shown in a non-flushing state;
fig. 4 is a sectional view showing the drain valve mechanism in a flushing state in the embodiment;
FIG. 5 is a sectional view showing the drain valve mechanism controlling the drainage by the manual drain valve in the embodiment;
FIG. 6 is a sectional view showing the drain valve mechanism controlling the drainage by the relief valve in the embodiment;
fig. 7 is a sectional view showing the drain valve mechanism controlling the drainage by the electric drain valve in the embodiment.
Detailed Description
To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The invention will now be further described with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 7, the drainage device provided in this embodiment includes a drainage pipe 1, a water stop assembly 20, a drainage valve and a pressure release valve 40, a water inlet cavity 101, a water outlet cavity 102 and a back pressure cavity 103 are formed in the drainage pipe 1, the water outlet cavity 102 and the back pressure cavity 103 are isolated by the movable water stop assembly 20, the water stop assembly 20 moves towards the water outlet cavity 102 to isolate the water outlet cavity 102 from the water inlet cavity 101, the water stop assembly 20 moves towards the back pressure cavity 103 to communicate the water outlet cavity 102 with the water inlet cavity 101, the back pressure cavity 103 is communicated with the water inlet cavity 101, and the drainage valve is used for controlling drainage of the back pressure cavity 103; the back pressure chamber 103 is also communicated with a drain passage 104, and the relief valve 40 is disposed on the drain passage 104.
When the water-stopping device is normally used, the back pressure cavity 103 is controlled to drain water through the drain valve, the pressure is rapidly reduced when the back pressure cavity 103 drains water, and the pressure of the water-stopping component 20 on one side of the back pressure cavity 103 is reduced, so that the water-stopping component 20 moves towards the direction of the back pressure cavity 103 to open a normal flushing channel; after the drain valve is closed, water in the water inlet cavity 101 continuously flows into the back pressure cavity 103, and the water inlet assembly 20 is driven to move towards the water outlet cavity 102, so that the water outlet cavity 102 is isolated from the water inlet cavity 101, and a normal flushing water path is blocked.
The back pressure cavity 103 is communicated with the drainage channel 104, the pressure relief valve 40 for pressure relief and drainage is arranged on the drainage channel 104, the water inlet cavity 101, the back pressure cavity 103 and the drainage channel 104 are at equal water pressure, when the water pressure of the water inlet end (and the water inlet cavity 104) is too high, the pressure relief valve 40 is automatically opened, the water in the back pressure cavity 103 and the drainage channel 104 is discharged, the pressure is reduced when the back pressure cavity 103 drains water, the pressure of the water outlet cavity 102 is greater than that of the back pressure cavity 103, the water stop assembly 20 is driven to move towards the direction of the back pressure cavity 103 to open a normal flushing channel, and the pressure of the water inlet end (namely the water inlet cavity 101) is reduced by opening the normal flushing channel. This kind of structure breaks the conventional thinking that directly sets up the relief valve at the end of intaking (intake chamber 101 promptly), and the relief valve 40 only need satisfy can let the water discharge of backpressure intracavity can, not high to the requirement of part (like reset spring), and need not additionally to increase the drainage pipe of pressure release again for the structure obtains simplification by a wide margin, and whole integrates easily, miniaturized.
Meanwhile, through the layout of the drainage passage 104, the setting position of the pressure release valve 40 can be well controlled without changing the original layout of the back pressure chamber 103, so that the structure is simple and convenient.
Further, in this embodiment, the material of the drain pipe 1 is plastic or metal, preferably plastic.
Further, in this embodiment, the back pressure chamber 103 is provided with a water discharge port 12 communicating with the water discharge passage 104, and the water discharge port 12 is opened at the top position of the back pressure chamber 104. Before the water starts to flow, the interior of the back pressure chamber is filled with the atmosphere. If the water outlet of the back pressure cavity is positioned at the middle lower position of the back pressure cavity, the back pressure cavity always traps gas at the upper position of the back pressure cavity, so that when the back pressure cavity is actually flushed, the water flow is mixed with too much air, and larger noise is generated. The water outlet 12 of the back pressure cavity 103 is arranged at the top of the back pressure cavity 103, so that even if air exists in the back pressure cavity 103 during water drainage, the air is firstly discharged from the water outlet 12 during water drainage, noise caused by mixing of the air into water flow is avoided, and silent water drainage of the back pressure cavity 103 is realized.
Further, in this embodiment, a pressure relief hole 1042 is provided on the drainage channel 104, and the pressure relief valve 40 includes: the first seal assembly corresponds to the water outlet end of the pressure relief hole 1042, the first return spring 43 always applies a force to the first seal assembly in a direction towards the pressure relief hole 1042, and the first seal assembly seals and blocks the pressure relief hole 1042 under the action of the first return spring 43. When the water pressure is too high, the first sealing assembly is pressed by the water pressure to overcome the first return spring 43 and is separated from the pressure relief hole 1042, and the water in the back pressure cavity 103 and the water drainage channel 104 is drained from the pressure relief hole 1042; after the exhaust, the first sealing assembly loses the pressure of the water pressure and reseals and blocks the pressure relief hole 1042 under the restoring force of the first restoring spring 43.
Further, the first sealing assembly includes a first connecting shaft 41 and a sealing block 42, the sealing block 42 is fixed on the first connecting shaft 41 and corresponds to the water outlet end of the relief hole 1042, and the first return spring 43 acts on the first connecting shaft 41. The pressure release valve 40 adopts a simple pure mechanical structure, and has the advantages of simple structure, small volume and low cost. Of course, in other embodiments, other mechanical structures or electrically controlled structures may be adopted; if when adopting the structure of automatically controlled room, need set up and be used for responding to the water pressure in intake antrum, the back pressure chamber or the drainage route, with the signal input controller of response, whether too big through controller processing water pressure, whether the controller is again controlled the solenoid valve and is opened the pressure release hole and carry out the drainage, this automatically controlled formula structure is prior art, and concrete model, circuit connection relation are no longer detailed here.
Further, in this embodiment, the drain valve includes a manual drain valve, the manual drain valve is disposed on the drain passage 104, and a drain water path of the manual drain valve and a pressure relief water path of the pressure relief valve 40 are parallel water paths for respectively controlling drainage of the back pressure chamber 104 without affecting each other. The manual drain valve is also arranged on the drain passage 104, so that the arrangement in a narrow space of the back pressure cavity 103 is omitted; meanwhile, through the arrangement of the drainage passage 104, the manual drainage valve can be arranged at a position convenient to operate, such as the top, so that the operation is convenient.
Still further, a drain hole 1041 is provided on the drain passage 104, and the manual drain valve includes: the manual button 31, the second connecting shaft 32, the second return spring 34 and the second sealing block 33, the drainage passage 104 is provided with a drainage hole 1041, the second connecting shaft 32 is inserted into the drainage hole 1041, the second sealing block 33 is disposed on the second connecting shaft 32 and corresponds to the drainage hole 1041, the second return spring 34 applies a force to the second connecting shaft 32 to move the second sealing block 33 on the second connecting shaft 32 toward the drainage hole 1041 and seal the drainage hole 1041, that is, the second return spring 34 drives the second connecting shaft 32 and the second sealing block 33 to move simultaneously, and the moving direction is the direction toward 1041 of the second sealing block 33, so that the second sealing block 33 seals the drainage hole 1041, and the drainage hole 104 is blocked. The manual button 31 is externally arranged, the manual button 31 is connected with the second connecting shaft 32, the second connecting shaft 32 is driven by pressing the manual button 31 to overcome the acting force of the second return spring 34 and the water pressure (namely, the water pressure exerted on the sealing block 33 by the water in the back pressure cavity 103 and the drainage passage 104) borne by the sealing block 33, so that the second sealing block 33 on the second connecting shaft 32 moves in the direction of separating from the drainage hole 1041, namely, the second connecting shaft 32 and the second sealing block 33 are driven by pressing the manual button 31 to move simultaneously, and the moving direction is the direction of separating from the drainage hole 1041 by the second sealing block 33, so that the second sealing block 33 separates from the drainage hole 1041, and the drainage passage 104 is conducted. Of course, in other embodiments, other existing configurations of the manual drain valve may be used.
Still further, in the present embodiment, the manual button 31 is isolated from the drain passage 104 by a flexible gasket 35, and the manual button 31 is in contact with the second connecting shaft 32 by the flexible gasket 35.
Still further, in this embodiment, the drain valve further includes an electric drain valve 70, such as a solenoid valve. The drain port 12 communicating with the drain passage 104 is defined as a first drain port 12; the back pressure chamber 103 is further provided with a second water outlet 13, the electric water discharge valve 70 controls on/off of the second water outlet 13, and further, the electric water discharge of the water discharge device is realized through the electric water discharge valve 70, as shown in fig. 7, and intellectualization is realized.
Furthermore, in this embodiment, the second water outlet 13 is communicated with the water outlet cavity 102 to discharge the water in the back pressure cavity 103 into the water outlet cavity 102, so that no additional water outlet pipe is required, and water resources are fully utilized.
Furthermore, in this embodiment, the drainage passage 104 is communicated with the water outlet cavity 102 to drain the water in the back pressure cavity 103 into the water outlet cavity 102, so that no additional drainage pipe is required, and water resources are fully utilized.
Further, in this embodiment, the water stopping assembly 20 includes a flexible sealing film 21 and a fixing plate 22, an outer edge of the flexible sealing film 21 is fixed to an inner wall of the chamber between the water outlet chamber 102 and the back pressure chamber 103 in a sealing manner to isolate the water outlet chamber 102 and the back pressure chamber 103, and the fixing plate 20 is connected to a middle position of the flexible sealing film 21 in a sealing manner to play a role in supporting. The drainage of the back pressure cavity 103 enables the pressure of the water stopping assembly 20 at one side of the back pressure cavity 103 to be rapidly reduced, so that the water stopping assembly 20 moves towards the direction of the back pressure cavity 103 under the action of pressure difference, and the water inlet cavity 101 and the water outlet cavity 102 are communicated in an opening mode; when the back pressure cavity 103 stops draining, water in the water inlet cavity 101 flows into the back pressure cavity 103 through the water inlet hole 11 to be pressurized, so that the water inlet component 20 moves towards the water outlet cavity 102, and then tightly abuts against the through hole between the water outlet cavity 102 and the water inlet cavity 101 again, and the communication between the water outlet cavity 102 and the water inlet cavity 101 is blocked. Of course, in other embodiments, the structure of the water stopping assembly 20 is not limited thereto.
Furthermore, in this embodiment, the back pressure chamber 103 is communicated with the water inlet chamber 101 through the water inlet hole 11, and the water inlet hole 11 is provided with the needle 111 for limiting the flow in a penetrating manner, so that the function of limiting the flow can be effectively achieved, which is equivalent to a needle valve structure. Of course, in other embodiments, the invention is not limited thereto.
Still further, the needle 111 penetrating the water inlet 11 is fixed by a spring 112 disposed in the back pressure chamber 103, that is, the needle 111 is formed by extending one end of the spring 112. Still further, the spring 112 only plays a role of positioning, and the arrangement of the spring 112 has a negligible influence on the action of the water stop assembly 20.
Furthermore, in this embodiment, the drainage pipe 1 is further provided with an anti-siphon structure at the water outlet end of the water outlet cavity 102, which can effectively perform anti-siphon and anti-backflow functions, and prevent the sewage from being guided to the water supply pipe.
Specifically, a first sealing port 51 which is horizontally arranged is arranged in the drain pipe 1, the anti-siphon mechanism comprises a first gravity valve 52, the first gravity valve 52 is arranged right above the first sealing port 51 in a lifting and moving manner, the first gravity valve 52 is sealed and closed to the first sealing port 51 through self gravity, the drain pipe 1 drives the first gravity valve 52 to ascend and open the first sealing port 51 through the water pressure of the water inlet end (namely, the water pressure flowing from the water inlet cavity 101 to the water outlet cavity 102), and when no water is drained, the first gravity valve 52 is pushed by the water pressure when the water is not drained and descends to be sealed and closed to the first sealing port 51 again, so that the first sealing port 51 is sealed, and the effects of siphon prevention and backflow prevention of the drain pipe 1 can be well realized.
More specifically, the drain pipe 1 is provided with a second sealing port 61 arranged obliquely (or vertically in other embodiments), the anti-siphon mechanism includes a second gravity valve 62, the second gravity valve 62 is of a cover plate structure, the second gravity valve 62 is pivoted to the upper end of the second sealing port 61 and is turned downward by its own gravity to seal and cover the second sealing port 61, the drain pipe 1 drives the second gravity valve 62 to turn upward by the water pressure at the water inlet end (i.e., the water pressure flowing from the water inlet cavity 101 to the water outlet cavity 102) to open the second sealing port 61, when there is no water to be drained, the second gravity valve 62 is pushed by the water pressure when the water is not drained to turn downward again to seal and cover the second sealing port 61, so as to seal the second sealing port 61, and the effects of preventing siphon and preventing backflow of the drain pipe 1 can be well achieved.
This embodiment adopts two anti-siphon structures, plays the effect of dual protection, and can be when another anti-siphon structure loses the effect because of the anomaly, and another anti-siphon structure can also continue to realize its effect, and stability is good. Of course, in other embodiments, one or more than two structures may be provided, or the structure for preventing the siphon may be implemented by other structures.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A drainage device characterized by: the water outlet cavity is isolated from the back pressure cavity by the movable water stop component, the water outlet cavity is isolated from the water inlet cavity by the movement of the water stop component towards the direction of the water outlet cavity, the water outlet cavity is communicated with the water inlet cavity by the movement of the water stop component towards the direction of the back pressure cavity, the back pressure cavity is communicated with the water inlet cavity, and the drain valve is used for controlling the drainage of the back pressure cavity; the back pressure cavity is also communicated with a drainage passage, and the pressure relief valve is arranged on the drainage passage; when the water pressure at the water inlet end is too high, the pressure release valve is automatically opened; the water outlet end of the water outlet cavity of the water outlet pipe is also provided with an anti-siphon structure.
2. The drain device according to claim 1, wherein: the drain passage is provided with a pressure relief hole, and the pressure relief valve comprises: first seal assembly and first reset spring, first seal assembly corresponds the play water end in pressure release hole, first reset spring exerts the power towards the pressure release hole direction to first seal assembly all the time, first seal assembly seals under first reset spring's effect and blocks up the pressure release hole.
3. The drain device according to claim 1, wherein: the drain valve includes manual drain valve, manual drain valve sets up on this drainage route, and the drainage water route of manual drain valve and the pressure release water route of relief valve are parallelly connected water route for control the drainage in backpressure chamber respectively.
4. A drainage apparatus as claimed in claim 3, wherein: a drain hole is formed in the drain passage, and the manual drain valve includes: the manual button is connected with the second connecting shaft, the second connecting shaft is driven by the manual button to overcome the acting force of the second reset spring and the water pressure borne by the sealing block to enable the second sealing block on the second connecting shaft to be separated from the drain hole, and then the on/off of the drainage channel is controlled.
5. The drain device according to claim 1, wherein: the back pressure cavity is provided with a water outlet communicated with the water drainage passage, and the water outlet is arranged at the top of the back pressure cavity.
6. The drain device according to claim 1, wherein: the water drainage passage is communicated with the water outlet cavity.
7. The drain device according to claim 1, wherein: the stagnant water subassembly includes flexible seal membrane and fixed plate, the sealed cavity inner wall that is fixed in between play water cavity and the backpressure cavity of the outer fringe of flexible seal membrane, in order to keep apart play water cavity and backpressure cavity, fixed plate sealing connection is in the middle part position of flexible seal membrane.
8. The drain device according to claim 1, wherein: the anti-siphon structure comprises a first gravity valve, wherein the first gravity valve is arranged in the drain pipe and can move up and down and is arranged right above the first sealing port, the first gravity valve is sealed and closed to the first sealing port through self gravity, and the drain pipe is driven to ascend through the water pressure of the water inlet end to open the first sealing port.
9. The drainage apparatus according to claim 1 or 8, wherein: the anti-siphon structure comprises a second gravity valve, the second gravity valve is of a cover plate structure and is pivoted to the upper end of the second sealing port, the second sealing port is sealed through self gravity, and the drain pipe drives the second gravity valve to turn over and open through water pressure of the water inlet end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910460864.4A CN110185106B (en) | 2019-05-30 | 2019-05-30 | Water drainage device |
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| CN201910460864.4A CN110185106B (en) | 2019-05-30 | 2019-05-30 | Water drainage device |
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| CN110185106A CN110185106A (en) | 2019-08-30 |
| CN110185106B true CN110185106B (en) | 2021-08-24 |
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| CN113915390B (en) * | 2021-09-22 | 2023-09-12 | 南京信息工程大学 | Automatic drain valve based on membrane structure |
| CN216589965U (en) * | 2021-12-15 | 2022-05-24 | 厦门铱科卫浴科技有限公司 | Drainage control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN209943530U (en) * | 2019-05-30 | 2020-01-14 | 厦门哇陶卫浴有限公司 | Drain valve mechanism and toilet bowl |
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| CN204225236U (en) * | 2014-07-28 | 2015-03-25 | 厦门瑞尔特卫浴科技股份有限公司 | One enters draining Integral hydraulic flushing valve |
| CN105888009B (en) * | 2016-06-17 | 2018-03-27 | 厦门瑞尔特卫浴科技股份有限公司 | A kind of high performance toilet flushing machine and its time-delayed self-closing switch valve gear |
| CN206752598U (en) * | 2017-04-05 | 2017-12-15 | 厦门瑞尔特卫浴科技股份有限公司 | A kind of Novel flush valve |
| CN109208719A (en) * | 2017-07-06 | 2019-01-15 | 厦门松霖家居有限公司 | Closestool water inlet valve backflow preventing structure |
| CN207633465U (en) * | 2017-08-31 | 2018-07-20 | 厦门建霖健康家居股份有限公司 | A kind of anti-syphon structure of cistern free pressure flush toilet |
| CN207905030U (en) * | 2018-01-13 | 2018-09-25 | 晋江一创科技有限公司 | One kind into draining integrative control valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN209943530U (en) * | 2019-05-30 | 2020-01-14 | 厦门哇陶卫浴有限公司 | Drain valve mechanism and toilet bowl |
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