CN102734543B - Water leakage prevention valve - Google Patents
Water leakage prevention valve Download PDFInfo
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- CN102734543B CN102734543B CN201210212068.7A CN201210212068A CN102734543B CN 102734543 B CN102734543 B CN 102734543B CN 201210212068 A CN201210212068 A CN 201210212068A CN 102734543 B CN102734543 B CN 102734543B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 242
- 230000002265 prevention Effects 0.000 title claims abstract description 14
- 230000004888 barrier function Effects 0.000 claims description 34
- 230000035515 penetration Effects 0.000 claims description 5
- 230000000994 depressogenic effect Effects 0.000 abstract description 2
- 239000008399 tap water Substances 0.000 description 37
- 235000020679 tap water Nutrition 0.000 description 37
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Fluid-Driven Valves (AREA)
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Abstract
The invention relates to a water leakage prevention valve capable of preventing a water using appliance from being damaged by water hammers and water from continuously leaking. A valve body (1) is provided with a water inlet (105), a water inlet chamber (101) and a water outlet chamber (102). A three-way bonnet (3) is connected onto the valve body. An elastic diaphragm (2) which can be expanded and lifted up and can be depressed down is arranged on a valve seat between the water inlet chamber and the water outlet chamber of the valve body in a matched way. A side through hole (201) is arranged in the diaphragm. The valve body is provided with a middle water outlet (106). One end of the bonnet is an open end. The open end is matched with the valve body. The diaphragm is arranged at a position where the open end is matched with the valve body to form a backpressure chamber (103) between the diaphragm and the bonnet. The second end of the bonnet is provided with a water outlet (302). The other end of the bonnet is provided with a middle water inlet (303). A three-way through chamber (304) is arranged in the bonnet. A one-way valve is arranged at the middle water inlet of the bonnet and is usable in one way from the middle water inlet to the water outlet. The water leakage prevention valve can be used as a water inlet valve for the water using appliance.
Description
Technical field
The invention belongs to a kind of valve, particularly can prevent the water appliance such as water purifier, water heater from destroyed by water attack and continuing the valve that leaks.
Background technique
General direct connection tap water pipe network when the water appliance such as water purifier, water heater that current manufacturer produces is installed and used, even if common configuration inlet valve, but this valve is generally in normally open.The pressure of tap water pipe network is applied directly to all parts of water appliance internal flow path.Be connected to the online equipment of running water pipe and utensil has a lot, when certain equipment, the particularly comparatively large and equipment of water-flowing amount, tap water pipe network can be made to occur that pressure changes when opening fast or closing water-flowing path, pressure surge is produced in pipe network, shock wave is propagated so that is caused resonance in pipe network, sends the sound of " thumping is dashed forward ", water attack that Here it is (also claiming water hammer) phenomenon.During generation water attack, great changes will take place for pipe network internal pressure, can reach the several times even ten times more than of tap water pipe network normal pressure during pressure increase.Therefore water attack has very holocaust power to tap water pipe network and institute's attached device.
Be connected to the water appliances such as the online water purifier of running water pipe, water heater, due to directly through with ductwork pressure, when generation water attack, be easy to be damaged, as utensil leaks.Even if there is not water attack, these water appliance water leakage situation also can occur.Because these utensils are directly connected with tap water pipe network, the inlet valve configured also locates normal ON state, when water appliance leaks, water in pipe network can spill from water appliance continuously, if process just produces and leaks in a large number not in time, cause waste, and cause flood.
The Chinese utility model patent of notification number CN200978989Y, CN201746344U, and Japanese flat 3-154684 is disclosed without pressure-bearing type water tap, be the water appliances such as water purifier (water purifior), water heater water inlet place and the valve that manual spool opens and closes is set between water source from the beginning, thus realize when spool is closed, the object that the pressure of tap water and water appliance are isolated.But use this protected-type; install water appliance (water purifier, water heater etc.) if time user general water tap has been installed; so user just needs to change water tap; and the pipeline between water appliance and tap connects two tubes more than general water tap; exist and inconvenience is installed, the shortcoming that cost compare is high.
Japan Showa 54-102726 provides a kind of switch valve that need not be automatically controlled to protect water appliance; When protected water appliance is done with water conservancy project user, this valve can be opened automatically, circulates in water route; When protected water appliance is when user is without water, this valve can be closed automatically, thus the variation in water pressure making protected water appliance isolate water supply network prevents the destruction of water attack.If but protected water appliance leaks, this valve still can be opened because of the release of waterexit end pressure, and protected water appliance and tap water pipe network water flowing do not block, and leaking can be constant, and water appliance can not be stoped to continue to leak.
The device that Chinese utility model patent ZL200620057712.8 provides adopts leak water detdction and coordinates electromagnetic valve to solve and continues to leak water problem, but need outside outfit power supply, comprise configuration power interface, detection and control part needs special detection part, need a container for placing water appliance, thus need to increase no small cost, and add duty cycle in installing and using, be also inconvenient to use.
Summary of the invention
The present invention to solve the water appliance such as water purifier, water heater suffer water attack fragile and these water appliances leak time can not automatically stop continue leak water problem, a kind of water leakage prevention valve of the present invention is provided for this reason.Valve of the present invention, without electric controling part, it is installed on the water appliance such as water purifier, water heater, as long as terminal flowing water Valve (such as ordinary faucet) is closed, valve of the present invention will be closed automatically, water appliance and tap water pipe network water flowing are blocked, effectively prevents the effect of water hammer water appliance that other equipment in tap water pipe network cause.And when water appliance leaks, owing to blocking with tap water pipe network water flowing, water appliance would not continue to leak by through pipe network.
For solving the problem, the technical solution used in the present invention is provided with valve body, valve body has water intake, water-inlet cavity and water chamber, its special way is valve gap valve body being connected with three-way type, valve seat between the water-inlet cavity of valve body and water chamber is combined with and can lifts and the elastic diaphragm stayed by cripling, barrier film has side through hole, valve body has middle water outlet, valve gap one end is opening end, this opening end coordinates with described valve body, described barrier film is arranged at this opening end and valve body cooperation place, so that form back pressure cavity at barrier film and valve cover chamber, the valve gap the other end has water outlet, the another end of valve gap has middle water intake, there is in valve gap the through chamber of three-way type, the middle water inlet of valve gap is provided with one-way cock, this one-way cock is unidirectional open-minded to water outlet from middle water intake.
Described one-way cock can be on valve seat, be combined with the flap that front portion is nested with O type circle, and flap is combined with spring.
Described diaphragms can be provided with diaphragm plate, diaphragm plate is provided with the projection that centre has penetration hole, and this projection is embedding goes here and there in the described side opening of barrier film.And secondary spring can be provided with on described diaphragm plate.
Preferably described valve gap opening end has flange, and described barrier film is arranged at this opening end and valve body cooperation place and refers to that the outer fringe seal that the flange of described valve gap opening end press against barrier film coordinates.
Valve of the present invention is connected with protected water appliance.When protected water appliance terminal flowing water Valve (such as water tap) is opened (during user's water), pressure in back pressure cavity of the present invention discharges because of terminal valve opening, the pressure of water-inlet cavity is just greater than the pressure of back pressure cavity, barrier film upwards lifts, valve seat is open-minded, tap water just enters protected water appliance by middle water outlet, because the hydraulic pressure in protected water appliance is greater than the hydraulic pressure of terminal valve outlet, shape is opened at one-way cock place in the present invention, water in protected water appliance just flows out from middle water intake of the present invention, flowed out from terminal valve by water outlet again.When terminal valve closing, tap water enters back pressure cavity by the side through hole (or penetration hole of diaphragm plate) on water-inlet cavity, barrier film, and back pressure cavity internal pressure rises, until when being greater than the pressure of water chamber, barrier film is depressed closed valve seat, blocks the path of water-inlet cavity and water chamber.Be provided with the present invention of diaphragm plate and secondary spring, can more successfully throttle down at secondary spring effect lower diaphragm plate.
During terminal valve closing, the barrier film automatic closing valve seat in the present invention, in tap water pipe network, other equipment cause the pressure wave of water attack to be blocked, thus prevent water attack from destroying water appliance.
Water appliance is connected to tap water pipe network by the present invention.When other equipment contiguous on pipe network are opened a sluice gate and drawn out some water, the pressure in the water appliance that the present invention connects can be discharged into tap water pipe network by the side through hole on middle water intake, back pressure cavity and elastic diaphragm successively, and water appliance and ductwork pressure are matched.When other watering equipment valve closing contiguous on pipe network; ductwork pressure rises, and pressure is passed to back pressure cavity by the side through hole of elastic diaphragm, and the one-way cock in the present invention is just closed; pressure in protected water appliance can not increase, and ensures water appliance not by affected by high.
As described above, when terminal valve closing, the barrier film in the present invention can block the path of water-inlet cavity and water chamber, stops tap water to enter water appliance.If water appliance leaks, because the hydraulic pressure in this water appliance is less than the hydraulic pressure of middle water outlet of the present invention and water outlet, one-way cock in the present invention is closed, the tap water stoped is back to water appliance, ensure that back pressure cavity internal pressure can not be discharged by leaking of water appliance, thus keep barrier film close valve seat stop tap water enter this state of water appliance, when ensureing that leaking appears in water appliance (as water purifier, water heater etc.), also there will not be and continue more than phenomenon of leaking.
Accompanying drawing explanation
Fig. 1 is the stereogram of water leakage prevention valve of the present invention;
Fig. 2 is the structural representation of one embodiment of the invention;
Fig. 3 is the structural representation of another embodiment of the present invention;
Fig. 4 is the A-A sectional view of Fig. 3;
Fig. 5 is the present invention and water appliance connection diagram;
Fig. 6 is a kind of one-way cock structural representation in the present invention;
Fig. 7 is barrier film in the present invention and diaphragm plate composite unit structure schematic diagram;
Fig. 8 is that the present invention is connected another schematic diagram with water appliance;
Fig. 9 is common valve and water appliance connection diagram;
Figure 10 is that adjacent valve closing changes schematic diagram with tap water pipe network pressure when opening;
Figure 11 adopts water appliance of the present invention water appliance internal pressure change schematic diagram when there is outside water attack;
Figure 12 adopts the water appliance of common valve water appliance internal pressure change schematic diagram when there is outside water attack.
Be labeled as in figure: 1 valve body, 101 water-inlet cavitys, 102 water chambers, 103 back pressure cavity, 105 water intakes, 106 middle water outlets, 2 barrier films, 201 side through hole, 202 outer rims, 3 valve gaps, 301 flanges, 302 water outlets, 303 middle water intakes, the 304 through chambeies of three-way type, 5 one-way cocks, 501 valve seats, 502 springs, 503 flaps, 504 O type circles, 6 secondary springs, 7 diaphragm plates, 701 is protruding, 702 penetration holes, 8 terminal valves, 9 adjacent valves, 10 common valves, P1 tap water pipe network hydraulic pressure indicates, hydraulic pressure instruction in the protected water appliance of P2, hydraulic pressure instruction in the not protected water appliance of P2'.
Embodiment
Embodiment one
The water leakage prevention valve of the present embodiment, as shown in Figure 1, Figure 2, Figure 5, there is valve body 1, valve body 1 has the water intake 105 be connected with tap water pipe network and the middle water outlet 106 be connected with water appliance, there is in valve body water-inlet cavity 101 and water chamber 102, valve seat corresponding part between water-inlet cavity and water chamber has can cripling and the elastic diaphragm 2 be made up of rubber material that stays, and barrier film has side through hole 201, and barrier film can be circular, oval or cabinet shape; Valve body is connected with the valve gap 3 of three-way type, valve gap one end open portion has flange 301, and the valve gap the other end has water outlet 302, and the another end of valve gap has the middle water intake 303 be connected with water appliance, has the through chamber 304 of three-way type in valve gap; The flange 301 of valve gap press against barrier film outer rim 202 and is sealed and matched, back pressure cavity 103 is formed at barrier film and valve cover chamber, valve gap and valve body fixedly can realize the sealing of back pressure cavity by screw, back pressure cavity 103 is through by side through hole 201 and water-inlet cavity 101, and back pressure cavity 103 is through by the through chamber of three-way type 304 and water outlet 302; Middle water outlet 303 place of valve gap is provided with one-way cock, and one-way cock is unidirectional open-minded to water outlet 302 from middle water intake 303.
When the present invention applies, water intake 105 connects tap water pipe network, and middle water outlet 106 connects the water intake of water appliance, and the water outlet of middle water intake 303 connects (process after water outlet) water appliance, water outlet 302 of the present invention connects terminal valve 8 by adapter.
When terminal valve 8(such as water tap) when opening, because the pressure in back pressure cavity 103 is discharged by terminal valve, the pressure in back pressure cavity 103 is less than the pressure of water-inlet cavity 101, and barrier film 2 is lifted off a seat and lifts, and tap water enters water appliance.During terminal valve opening water, one-way cock 5 is unidirectional to be opened, and after process, water (purification, heating etc.) flows out from terminal valve.
When terminal valve 8 is closed, tap water enters back pressure cavity 103 by the side through hole 201 of water-inlet cavity 101 and barrier film 2, back pressure cavity 103 is through with tap water pipe network, back pressure cavity internal pressure rises to pipe network isobaric, this pressure is greater than the pressure of water chamber 102, barrier film 2 pushes up to valve seat, blocks the path of water-inlet cavity 101 and water chamber 102, stops supplying water to water appliance.If there is leakage accident in water appliance, because the hydraulic pressure in water appliance is less than the hydraulic pressure in back pressure cavity 103 of the present invention and the through chamber of three-way type, the one-way cock of middle water outlet is in one direction shut-off state, tap water is stoped to be back to water appliance, and ensure that the pressure in back pressure cavity 103 can not be released, thus ensure that barrier film 2 closes valve seat, maintain water appliance water inlet blocking state, there will not be when ensureing that water appliance leaks and continue more than phenomenon of leaking.
Invention also has the effect that protection water appliance prevents water attack from being damaged.
Applicant adopts with when not adopting of the present invention to water appliance, and the closedown of adjacent valve has been done to test to measure on the impact of the hydraulic pressure in tap water pipe network and water appliance with unlatching, and test and measurement result are as shown in Fig. 8, Fig. 9, Figure 10, Figure 11 and Figure 12.
Fig. 8 represents that valve of the present invention is connected to water appliance.Adjacent valve 9 is connected to tap water pipe network; with the valve in the present invention and the water appliance that is connected adjacent, tap water pipe network hydraulic pressure instruction P1(setting pressure table), hydraulic pressure instruction P2 indicates the hydraulic pressure in tap water pipe network and protected water appliance respectively in protected water appliance.
Fig. 9 represents that common valve 10 is connected to water appliance.P1 is identical with the above for adjacent valve 9, the instruction of tap water pipe network hydraulic pressure, and in not protected water appliance, hydraulic pressure instruction P2' indicates the hydraulic pressure in not protected water appliance.
Figure 10, Figure 11, Tu12Zhong, t0 to t1 represents adjacent valve 9 shut-in time section, and t1 to t2 represents adjacent valve opening time section, and t2 to t3 represents the adjacent valve closing time period.
As can be seen from Figure 10, when adjacent valve 9 turns to closedown from unlatching, tap water pipe network produces a pressure crest, and this pressure wave meaning shows that water hammer produces.As seen from Figure 11, when adjacent valve turns to unlatching from closedown, the hydraulic pressure applied in water appliance of the present invention declines, and the internal pressure of protected water appliance is released a part; When adjacent valve turns to closedown from unlatching, although a pressure crest appears in tap water pipe network hydraulic pressure instruction P1, create water attack, now in protected water appliance, hydraulic pressure instruction P2 can't rise, and maintains the level of lower pressure, makes utensil receive protection.If water appliance does not adopt valve of the present invention and adopts common valve, similar test result as shown in figure 12: when adjacent valve turns to unlatching from closedown, the hydraulic pressure P2' in water appliance has decline, and the internal pressure of water appliance is released a part; When adjacent valve turns to closedown from unlatching, tap water pipe network creates water attack (Figure 10 shows); now in not protected water appliance there is a crest in hydraulic pressure instruction P2'; be under pressure impact, and after water attack, the pressure recover of water appliance inside is to the level equal with tap water pipe network.
Embodiment two
This routine water leakage prevention valve, as shown in Fig. 3, Fig. 5, Fig. 6, middle water outlet 303 place of valve gap is provided with one-way cock 5, and the valve seat 501 of this one-way cock is combined with the flap 503 that front portion is nested with O type circle 504, flap is combined with spring 503.Other structure is identical with embodiment's one.
During terminal valve opening water, under water pressure pushing, one-way cock 5 is opened, and the water in water appliance is finally flowed out from terminal valve by middle water outlet 303 and water outlet 302.
During terminal valve closing, act on lower Disc 503 pressured in valve seat 501 at spring 502, one-way cock is closed, and prevents back pressure cavity 103 and the through chamber of three-way type water to be together back to water appliance.
The structure of one-way cock also can select other structural type according to actual service condition, such as ball valve etc.
Embodiment three
This routine water leakage prevention valve, as shown in Fig. 3, Fig. 7, diaphragm plate 7 is provided with on barrier film 2, diaphragm plate is provided with protruding 701 and embeddingly goes here and there in the side opening 201 of barrier film, projection has penetration hole 702, be provided with secondary spring 6 above diaphragm plate, diaphragm plate is made by rigid material such as formable plastics, can move up and down together with barrier film.Other structure is identical with embodiment's one.
Diaphragm plate and the connection of barrier film are not limited to the nested method of described projection, also can adopt other fitting methods.
During terminal valve closing, even if when tap water intake pressure is lower, acted on by secondary spring 6, barrier film 6 more closed valve seat can be ensured, block water inlet.
Claims (5)
1. a water leakage prevention valve, valve body (1) has water intake (105), water-inlet cavity (101) and water chamber (102), it is characterized in that the valve gap (3) valve body being connected with three-way type, valve seat between the water-inlet cavity of valve body and water chamber is combined with and can lifts and the elastic diaphragm stayed (2) by cripling, barrier film has side through hole (201), valve body has middle water outlet (106), valve gap one end is opening end, this opening end coordinates with described valve body, described barrier film is arranged at this opening end and valve body cooperation place, so that form back pressure cavity (103) at barrier film and valve cover chamber, the valve gap the other end has water outlet (302), the another end of valve gap has middle water intake (303), there is in valve gap the through chamber of three-way type (304), middle water intake (303) place of valve gap is provided with one-way cock, this one-way cock is unidirectional open-minded to water outlet (302) from middle water intake (303).
2. water leakage prevention valve as claimed in claim 1, the valve seat (501) that it is characterized in that described one-way cock (5) is combined with the flap (503) that front portion is nested with O type circle (504), flap is combined with spring (502).
3. water leakage prevention valve as claimed in claim 1, it is characterized in that described barrier film (2) is provided with diaphragm plate (7) above, diaphragm plate is provided with the projection (701) that centre has penetration hole (702), and this projection is embedding goes here and there in the described side through hole (201) of barrier film.
4. water leakage prevention valve as claimed in claim 3, what it is characterized in that described diaphragm plate (7) is provided with secondary spring (6) above.
5. the water leakage prevention valve as described in claim 1,2 or 3, it is characterized in that described valve gap opening end has flange (301), described barrier film is arranged at this opening end and valve body cooperation place and refers to that the outer rim (202) that the flange of described valve gap opening end press against barrier film is sealed and matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210212068.7A CN102734543B (en) | 2012-06-23 | 2012-06-23 | Water leakage prevention valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210212068.7A CN102734543B (en) | 2012-06-23 | 2012-06-23 | Water leakage prevention valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102734543A CN102734543A (en) | 2012-10-17 |
| CN102734543B true CN102734543B (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210212068.7A Active CN102734543B (en) | 2012-06-23 | 2012-06-23 | Water leakage prevention valve |
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| CN (1) | CN102734543B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925409B (en) * | 2014-04-02 | 2016-09-07 | 苏州沃特节水产品有限公司 | A kind of tank intake valve of water |
| CN103899765A (en) * | 2014-04-02 | 2014-07-02 | 苏州沃特节水产品有限公司 | Valve block for water inlet valve of water tank |
| CN106286929B (en) * | 2015-05-22 | 2018-09-21 | 佛山市顺德区美的饮水机制造有限公司 | one-way valve and water purifier |
| CN109073104B (en) * | 2016-03-31 | 2020-07-31 | 株式会社富士金 | Overflow valve |
| CN106763205A (en) * | 2016-12-28 | 2017-05-31 | 瓦房店轴承集团有限责任公司 | Pressure-controlled type Sendzimir bearing |
| CN111927976A (en) * | 2020-07-21 | 2020-11-13 | 杭州神林电子有限公司 | Mechanical water leakage protection valve |
| CN115183155B (en) * | 2021-04-02 | 2023-08-15 | 汉宇集团股份有限公司 | Water-using electrical appliance for measuring water pressure monitoring water leakage, internet of things system and working method |
| CN115406113A (en) * | 2022-03-09 | 2022-11-29 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater with water leakage prevention function |
| CN115406108B (en) * | 2022-04-19 | 2025-07-08 | 武汉海尔热水器有限公司 | Decorative cover for water heater and water heater |
| CN115406109A (en) * | 2022-04-19 | 2022-11-29 | 武汉海尔热水器有限公司 | Decorative cover and water heater with sterilizing function |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2109474U (en) * | 1989-11-12 | 1992-07-08 | 黄曾汛 | Water-leakage-proof water-saving valve |
| JP2004044839A (en) * | 2002-07-09 | 2004-02-12 | Matsushita Electric Ind Co Ltd | Hot water pouring equipment |
| CN2608776Y (en) * | 2003-03-16 | 2004-03-31 | 常涛涛 | Leakproof water valve |
| CN201126025Y (en) * | 2007-12-11 | 2008-10-01 | 北京康拓科技开发总公司 | Electromagnetic water valves |
| CN101216115A (en) * | 2007-12-29 | 2008-07-09 | 李风仁 | Water leakage preventing valve |
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2012
- 2012-06-23 CN CN201210212068.7A patent/CN102734543B/en active Active
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