CN103851242B - Home-use automatic shutoff valve and automatically pass water method - Google Patents
Home-use automatic shutoff valve and automatically pass water method Download PDFInfo
- Publication number
- CN103851242B CN103851242B CN201410078731.8A CN201410078731A CN103851242B CN 103851242 B CN103851242 B CN 103851242B CN 201410078731 A CN201410078731 A CN 201410078731A CN 103851242 B CN103851242 B CN 103851242B
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- Prior art keywords
- valve
- water
- magnet
- permanent magnet
- contact
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K21/00—Fluid-delivery valves, e.g. self-closing valves
- F16K21/04—Self-closing valves, i.e. closing automatically after operation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The present invention discloses a kind of home-use automatic shutoff valve and automatically closes water method, and it is made up of valve gap, automatic control device, electro-magnet, permanent magnet, stopping device, spool device, lower casing, housing, sealing-ring and contact device. The switch state of valve is detected by arranging contact device on valve gap, then determine whether to leak according to the program in automatic control device, then output signal makes electro-magnet whether be energized, thus make valve be in the state of opening or closing, structure is simple, it is easy to realize, the anti-object leaked can be reached; By the stopping device arranged, permanent magnet can be blocked after valve-off, thus realize making electro-magnet continue energising and valve also can be made to be in closing condition. The present invention can close after having the time of current to exceed certain time in running water pipe in the family automatically, avoids causing unnecessary loss.
Description
Technical field
The present invention relates to the water valve of running water pipe.
Background technology
In family or some other occasion, tap water water pipe, sometimes because some artificial or accidental factor causes leaking, is closed once unmanned and is caused long-time leaking, cause the waste of water resources; Sometimes also can forget to turn off after water tap is opened because of carelessness of people, cause the flowing water that water is long-time; Sometimes because forgetting to turn off after having people that water tap is opened after cutting off the water, causing long-time flowing water, after water, once family no one, not only water wastes, and family can be caused by water logging or other serious consequence. So, desirable to provide a kind of device that can make water pipe auto water stopping in family, after installing this kind of device, can automatically close after the time of current exceedes certain time, avoid causing unnecessary loss.
Summary of the invention
It is an object of the invention to provide a kind of home-use automatic shutoff valve, this water valve can after water flows out certain time automatic closing water pipe.
In order to solve the problem, the technical solution used in the present invention is as follows:
A kind of home-use automatic shutoff valve, by valve gap, valve housing, tube shell, spool device, promotes device, stopping device, automatic control device, contact device and sealing member to form; Wherein:
Described valve gap, valve housing and tube shell bolt connect and compose an entirety; Wherein it is provided with diaphragm between valve gap and valve housing, between valve gap and diaphragm, forms uuper valve chamber; Described tube shell is provided with intake antrum and water chamber, is provided with valve port between intake antrum and water chamber, and wherein the port part of intake antrum and water chamber is respectively into water interface and water outlet mouthpiece.
Described spool device comprises valve head, valve shaft and pressure spring, and valve head and valve shaft link together, and valve head is on the valve port in tube shell, and valve shaft upper end reaches uuper valve chamber bottom valve housing and installs iron slider; Pressure spring is enclosed within valve shaft, and valve head is withstood in pressure spring one end, valve housing bottom surface is withstood in one end, and under pressure spring effect, valve head is pressed on valve port, makes spool device be in closing condition; The elastic force of pressure spring should be less than the pressure of hydraulic pressure in tap water.
Described sealing member comprises: sealing-ring that the contact position of the sealing-ring, the upper tray that arranges respectively of upper and lower surface of diaphragm and lower tray, upper tray and lower tray and the valve shaft that arrange between valve housing and tube shell is arranged respectively, the realization of setting and the valve port pad of sealing valve port on valve head.
Described promotion device be in uuper valve chamber below be mounted with the permanent magnet slided up and down, iron core and the electro-magnet of coil composition are installed, iron core and permanent magnet generation mutual expelling force when electro-magnet is energized above in uuper valve chamber.
Described automatic control device is provided with circuit card in control enclosure, and circuit card is furnished with power source circuit, signal treatment circuit, amplification pull up circuit; Two the output point wires amplifying pull up circuit are connected on the terminal stud at magnet coil two ends; Wherein signal treatment circuit has timing, presets the normal time and the time comparing function that use water tap.
Described stopping device is the open holes being provided with on the lid body of valve gap and installing stopping device, open holes and be in permanent magnet glide after upper stop surface position, be provided with in open holes from move into stopping lever, stopping lever bullet blocks permanent magnet after entering make it upwards not slide.
Described contact device is the open holes being provided with on the lid body of valve gap and installing contact device, the interior face of lid body is provided with the guide groove being connected in one with open holes, open holes and iron slider upper stop surface position when being in spool device closing condition, iron slider is provided with the projection coordinated with guide groove, and iron slider moves up and down under the effect of guide groove; Contact it is provided with in open holes, contact is provided with elastic contact blade and contact, being connected to wire on elastic contact blade and contacting, elastic contact blade and contact when iron slider upwards moves, two conductor wire end are serially connected in the power source circuit in automatic controlled box by terminal stud respectively.
In order to prevent blind chamber phenomenon, described valve housing is provided with water flowing hole, and water flowing hole makes the space below diaphragm and communicates between water outlet mouthpiece.
Valve port pad in above-mentioned sealing member is screwed on valve head by compressing tablet.
On the stopping lever of above-mentioned stopping device, cover has spring, and spring end cap is fixed in open holes; The exposed junction of stopping lever is provided with the stop cap being convenient to press.
Principle of work and the useful effect of the present invention are, it may also be useful to the present invention is serially connected on the water main of family by time by water inlet interface and water outlet mouthpiece. when water tap in main is in closing condition and family water pipe and does not have drainage, hydraulic balance in this device, valve head withstands valve head under the action of the spring, makes water valve be in closing condition, when normal open water tap, or forget to turn off the tap, or when having a water tap leakage, under effect of water pressure, valve head is opened, now iron slider rises, the projection of iron slider withstands elastic contact blade, elastic contact blade is contacted with contact, connect the power supply in automatic control device, signal treatment circuit starts timing and compares with the default time in signal treatment circuit, in main, water pipe has drainage and the time of leaking to equal the default time or when the water tap time of opening equals the default time, signal treatment circuit exports electrical signal and makes amplification pull up circuit output voltage, the coil of electro-magnet is passed into direct current, iron core produces magnetic to be repelled mutually with permanent magnet, thus permanent magnet promotes iron slider to be pressed on valve port by valve head, automatic closing water stream, so can automatically close after the scheduled time exceeding setting when the time of current, avoid causing unnecessary loss.
When, after automatic closing water stream, permanent magnet just departs from stopping lever, then stopping lever is ejected under the action of the spring, the upper stop surface being stuck in permanent magnet, elastic contact blade also disconnects with contact simultaneously, the coil blackout stopping work of electro-magnet, thus make electro-magnet need not long time energising, saves energy.
When people close water tap within the default time, lose differential water pressures in this device, then valve head makes valve head close under the action of the spring, and iron slider departs from elastic contact blade simultaneously, the coil blackout stopping work of electro-magnet, so electro-magnet also no longer power consumption.
Preset with water time people's continuation water or when reopening water tap next time when exceeding, pinch stop cap with hand and outwards extract stopping lever and can recover normal water flowing state; As run into because of water tap damage leak and lock electromagnetism water valve time, as long as Replacement and Repair can recover normal water flowing state.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the revolved view of the enlarged view at I place in Fig. 1, shows the structure of contact device in figure.
Fig. 3 is the revolved view of the enlarged view at II place in Fig. 1, shows the structure of stopping device in figure.
Marginal data: 1-valve gap, 2-tube shell, 3-first terminal stud, 4-first screw, 5-automatic controlled box, 6-the 2nd terminal stud, 7-iron core, 8-coil, 9-permanent magnet, 10-diaphragm, 11-valve housing, 12-guide groove, 13-valve shaft, 14-first sealing-ring, 15-water outlet mouthpiece, 16-valve head, 17-the 2nd screw, 18-compressing tablet, 19-valve port, 20-valve port pad, 21-is intake interface, 22-pressure spring, 23-the 2nd sealing-ring, 24-water flowing hole, 25-lower tray, 26-upper tray, 27-the 3rd sealing-ring, 28-the 3rd screw, 29-iron slider, 30-projection, 31-the 3rd terminal stud, 32-the 4th terminal stud, 33-contact, 34-elastic contact blade, 35-contact, 36-stop cap, 37-end cap, 38-stop spring, 39-stopping lever.
Below in conjunction with accompanying drawing, the present invention done detailed explanation.
Embodiment
As shown in Figure 1, a kind of home-use automatic shutoff valve, by valve gap 1, valve housing 11, tube shell 2, spool device, promotes device, stopping device, automatic control device contact device and sealing member to form.
Described valve gap 1, valve housing 11 connect and compose an entirety with tube shell 2 bolt; Wherein it is provided with diaphragm 10 between valve gap 1 and valve housing 11, between valve gap 1 and diaphragm 10, forms uuper valve chamber; Described tube shell 2 is provided with intake antrum and water chamber, is provided with valve port 19 between intake antrum and water chamber, and wherein the port part of intake antrum and water chamber is respectively into water interface 21 and water outlet mouthpiece 15.
Described spool device comprises valve head 16, valve shaft 13, pressure spring 22 and sealed structure, valve head 16 and valve shaft 13 link together, valve head 16 is on the valve port 19 in tube shell 2, and valve shaft 13 upper end reaches uuper valve chamber bottom valve housing 11 and connects iron slider 29; Pressure spring 22 is enclosed within valve shaft 13, valve head 16 is withstood in pressure spring 22 one end, valve housing 11 bottom surface is withstood in one end, under pressure spring 22 acts on, valve head 16 is pressed on valve port 19 to make spool device be in closing condition, and the elastic force of pressure spring 22 should be less than the pressure of hydraulic pressure in tap water.
Described sealing member is provided with the 3rd sealing-ring 27 between valve housing 11 and tube shell 2; The upper and lower surface of diaphragm 10 is respectively equipped with upper tray 26 and lower tray 25; The contact position of upper tray 26 and lower tray 25 and valve shaft 13 is respectively equipped with the first sealing-ring 14 and the 2nd sealing-ring 23; Being provided with the valve port pad 20 realized with valve port 19 seals on valve head 16, valve port pad 20 is fixed on valve head 16 with the 2nd screw 17 by compressing tablet 18.
Described promotion device be in uuper valve chamber below be mounted with the permanent magnet 9 slided up and down, the electro-magnet that iron core 7 and coil 8 form is installed, iron core and permanent magnet generation mutual expelling force when electro-magnet is energized above in uuper valve chamber.
As shown in Figure 2, described automatic control device is provided with circuit card in automatic controlled box 5, and circuit card is furnished with power source circuit, signal treatment circuit and amplification pull up circuit; Amplifying two of pull up circuit exports on the first terminal stud 3 and the 2nd terminal stud 6 that some wires are connected to magnet coil 8 two ends; Automatic controlled box 5 is fixed on valve gap 1 by the first screw 4; Wherein signal treatment circuit has timing, presets the normal time and the time comparing function that use water tap.
As shown in Figure 2, described stopping device is the open holes being provided with on the lid body of valve gap 1 and installing stopping device, upper stop surface position after requiring open holes to be in permanent magnet 9 downslide, the stopping lever 39, stopping lever 39 cover that are provided with slip in open holes have stop spring 38, and stop spring 38 end cap 37 is fixed in open holes; Stopping lever 39 can enter in valve chamber by bullet by spring pressure, and stopping lever bullet blocks permanent magnet 9 after entering makes it upwards not slide; The exposed junction of stopping lever 39 is provided with the stop cap 36 being convenient to press.
As shown in Figure 3, described contact device is the open holes being provided with on the lid body of valve gap 1 and installing contact device, the interior face of lid body is provided with the guide groove 12 being connected in one with open holes, open holes and iron slider 29 upper stop surface position when being in spool device closing condition, iron slider 29 is provided with the projection 30 coordinated with guide groove 12, and iron slider 29 is only limitted to move up and down under the effect of guide groove; Contact 33 it is provided with in open holes, contact 33 is provided with elastic contact blade 34 and contact 35, when iron slider 29 upwards moves, elastic contact blade 34 and contact 35 are connected, being connected to wire on elastic contact blade 34 and contact 35, two conductor wire end are serially connected in the power source circuit in automatic controlled box 5 by the 3rd terminal stud 31 and the 4th terminal stud 32 respectively.
In order to prevent blind chamber phenomenon, described lower casing 11 being provided with water flowing hole 24, water flowing hole 24 makes to communicate between the space below diaphragm 10 and water chamber.
The principle of work of the present invention is described further with reference to Fig. 1, Fig. 2 and Fig. 3.
During use, the present invention is serially connected on the water main of family by water inlet interface 21 and water outlet mouthpiece 15 place. when water tap in main is in closing condition and family water pipe and does not have drainage, hydraulic balance in this device, valve head withstands valve head 16 under the effect of pressure spring 22, makes electromagnetism water valve be in closing condition, when normal open water tap, or forget to turn off the tap, or when having a water tap leakage, under effect of water pressure, valve head 16 is opened, now the projection 30 on iron slider 29 withstands elastic contact blade 34, elastic contact blade 34 is contacted with contact 35, connect the power supply in automatic control device, signal treatment circuit starts timing and compares with the default time in signal treatment circuit, in main, water pipe has drainage and the time of leaking to equal the default time or when the water tap time of opening equals the default time, then signal treatment circuit output electrical signal makes amplification pull up circuit be in magnifying state, now the coil 8 of electro-magnet is passed into direct current, iron core 7 repels with magnetic and permanent magnet 9 phase, thus permanent magnet 9 promotes iron slider 29 to be pressed on valve port 19 by valve head 16, automatic closing water stream. now permanent magnet 9 just departs from stopping lever 39, then stopping lever is ejected under the effect of stop spring 38, is stuck in the upper stop surface of permanent magnet 9, and elastic contact blade 34 also disconnects with contact 35 simultaneously, the coil 8 power-off stopping work of electro-magnet.
When people close water tap within the default time, lose differential water pressures in this device, then valve head 16 makes valve head 16 close under the effect of pressure spring 22, the coil 8 power-off stopping work of electro-magnet.
Presetting with water time people's continuation water or when reopening water tap next time when exceeding, pinch stop cap 36 with hand and outwards extract stopping lever 39, now permanent magnet 9 is attached on iron core 7 under the magnetism of iron core 7, can recover normal water flowing state; As run into because of water tap damage leak and lock electromagnetism water valve time, as long as Replacement and Repair can recover normal water flowing state.
Claims (4)
1. the pass water law of a home-use automatic shutoff valve, it is characterized in that, described home-use automatic shutoff valve structure is, it is made up of valve gap, valve housing, tube shell, spool device, promotion device, stopping device, automatic control device, contact device and sealing member; Wherein:
Described valve gap, valve housing and tube shell bolt connect and compose an entirety; Wherein it is provided with diaphragm between valve gap and valve housing, between valve gap and diaphragm, forms uuper valve chamber; Described tube shell is provided with intake antrum and water chamber, is provided with valve port between intake antrum and water chamber, and wherein the port part of intake antrum and water chamber is respectively into water interface and water outlet mouthpiece;
Described spool device comprises valve head, valve shaft and pressure spring, and valve head and valve shaft link together, and valve head is on the valve port in tube shell, and valve shaft upper end reaches uuper valve chamber bottom valve housing and installs iron slider; Pressure spring is enclosed within valve shaft, and valve head is withstood in pressure spring one end, valve housing bottom surface is withstood in one end, and under pressure spring effect, valve head is pressed on valve port, makes spool device be in closing condition; The elastic force of pressure spring should be less than the pressure of hydraulic pressure in tap water;
Described sealing member comprises: sealing-ring that the contact position of the sealing-ring, the upper tray that arranges respectively of upper and lower surface of diaphragm and lower tray, upper tray and lower tray and the valve shaft that arrange between valve housing and tube shell is arranged respectively, the realization of setting and the valve port pad of sealing valve port on valve head;
Described promotion device be in uuper valve chamber below be mounted with the permanent magnet slided up and down, iron core and the electro-magnet of coil composition are installed, iron core and permanent magnet generation mutual expelling force when electro-magnet is energized above in uuper valve chamber;
Described automatic control device is provided with circuit card in control enclosure, and circuit card is furnished with power source circuit, signal treatment circuit, amplification pull up circuit; Two the output point wires amplifying pull up circuit are connected on the terminal stud at magnet coil two ends; Wherein signal treatment circuit has timing, presets the normal time and the time comparing function that use water tap;
Described stopping device is the open holes being provided with on the lid body of valve gap and installing stopping device, open holes and be in permanent magnet glide after upper stop surface position, be provided with in open holes from move into stopping lever, stopping lever bullet blocks permanent magnet after entering make it upwards not slide;
Described contact device is the open holes being provided with on the lid body of valve gap and installing contact device, the interior face of lid body is provided with the guide groove being connected in one with open holes, open holes and iron slider upper stop surface position when being in spool device closing condition, iron slider is provided with the projection coordinated with guide groove, and iron slider moves up and down under the effect of guide groove; Contact it is provided with in open holes, contact is provided with elastic contact blade and contact, being connected to wire on elastic contact blade and contacting, elastic contact blade and contact when iron slider upwards moves, two conductor wire end are serially connected in the power source circuit in automatic controlled box by terminal stud respectively;
The pass water law of this kind of home-use automatic shutoff valve is: during use, is serially connected on the water main of family by water valve by water inlet interface and water outlet mouthpiece, when water tap in main is in closing condition and family water pipe and does not have drainage, hydraulic balance in water valve, valve head withstands valve port under the action of the spring, makes water valve be in closing condition, when normal open water tap, or forget to turn off the tap, or when having a water tap leakage, under effect of water pressure, valve head is opened, now iron slider rises, the projection of iron slider withstands elastic contact blade, elastic contact blade is contacted with contact, connect the power supply in automatic control device, signal treatment circuit starts timing and compares with the default time in signal treatment circuit, in main, water pipe has drainage and the time of leaking to equal the default time or when the water tap time of opening equals the default time, signal treatment circuit exports electrical signal and makes amplification pull up circuit output voltage, the coil of electro-magnet is passed into direct current, iron core produces magnetic to be repelled mutually with permanent magnet, thus permanent magnet promotes iron slider to be pressed on valve port by valve head, automatic closing water stream.
2. close water law as claimed in claim 1, it is characterised in that, described valve housing is provided with water flowing hole, and water flowing hole makes the space below diaphragm and communicates between water outlet mouthpiece.
3. close water law as claimed in claim 1 or 2, it is characterised in that, the valve port pad in described sealing member is screwed on valve head by compressing tablet.
4. close water law as claimed in claim 1 or 2, it is characterised in that, on the stopping lever of described stopping device, cover has spring, and spring end cap is fixed in open holes; The exposed junction of stopping lever is provided with the stop cap being convenient to press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410078731.8A CN103851242B (en) | 2014-03-05 | 2014-03-05 | Home-use automatic shutoff valve and automatically pass water method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410078731.8A CN103851242B (en) | 2014-03-05 | 2014-03-05 | Home-use automatic shutoff valve and automatically pass water method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103851242A CN103851242A (en) | 2014-06-11 |
| CN103851242B true CN103851242B (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410078731.8A Expired - Fee Related CN103851242B (en) | 2014-03-05 | 2014-03-05 | Home-use automatic shutoff valve and automatically pass water method |
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| Country | Link |
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| CN (1) | CN103851242B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613215B (en) * | 2015-01-16 | 2017-06-20 | 苏州华爱电子有限公司 | A kind of micro- electric deexcitation formula Safety water valve |
| CN106151583A (en) * | 2015-03-11 | 2016-11-23 | 刘爱东 | Three-way electromagnetic valve |
| CN105604453B (en) * | 2015-12-24 | 2017-08-01 | 占行波 | Orifice automatic-sealed part |
| CN106704674A (en) * | 2017-02-27 | 2017-05-24 | 武汉中海机电设备有限公司 | Electromagnetic control valve capable of automatically controlling and alarming |
| CN110388499A (en) * | 2018-04-16 | 2019-10-29 | 姚宗伯 | A kind of device for preventing leakage and its application method |
| CN112403983A (en) * | 2020-11-03 | 2021-02-26 | 谭小勤 | Valve with automatic cleaning function |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5715167A (en) * | 1980-07-01 | 1982-01-26 | Tohoku Mikuni Kogyo Kk | Proportional control valve for gas |
| CN2438879Y (en) * | 2000-09-01 | 2001-07-11 | 王文乾 | Automatic tap |
| CN201090805Y (en) * | 2007-09-29 | 2008-07-23 | 陈思喆 | Running water pipe water leakage accident processing control apparatus |
| CN202561212U (en) * | 2012-03-31 | 2012-11-28 | 武汉工程大学 | Intelligent leakage-preventing and water-saving water valve |
| CN203757141U (en) * | 2014-03-05 | 2014-08-06 | 山东科技大学 | Domestic automatic water closing valve |
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2014
- 2014-03-05 CN CN201410078731.8A patent/CN103851242B/en not_active Expired - Fee Related
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| CN103851242A (en) | 2014-06-11 |
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