CN105114658A - Two-position three-way and automatic reflowing type multifunctional solenoid valve - Google Patents
Two-position three-way and automatic reflowing type multifunctional solenoid valve Download PDFInfo
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- CN105114658A CN105114658A CN201510442656.3A CN201510442656A CN105114658A CN 105114658 A CN105114658 A CN 105114658A CN 201510442656 A CN201510442656 A CN 201510442656A CN 105114658 A CN105114658 A CN 105114658A
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- valve
- seal membrane
- valve body
- valve port
- port
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
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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
- F16K31/0603—Multiple-way valves
- F16K31/0624—Lift valves
- F16K31/0627—Lift valves with movable valve member positioned between seats
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a two-position three-way and automatic reflowing type multifunctional solenoid valve. The two-position three-way and automatic reflowing type multifunctional solenoid valve comprises a valve body, wherein the valve body comprises a liquid inlet and a liquid outlet; a valve element is arranged between the liquid inlet and the liquid outlet, comprising a main valve port through which a medium can enter, and a secondary valve port for reflowing; a sealing film for opening or closing the main valve port is arranged on the main valve port; a secondary valve sealing device, which can be used for automatically closing the secondary valve port when the sealing film is opened and automatically opening the secondary valve port when the sealing film is closed, is arranged on the secondary valve port; an electromagnetic device and a manual pulling valve device which are used for independently controlling to open and close the film are arranged on the valve body. The medium in a pipeline at the outlet end can be timely emptied, and thus the quality of the medium in the pipeline at the outlet end can be ensured; meanwhile, the valve can be controlled to open and close in a manual pulling manner, so as to avoid the problem that a solenoid valve cannot run in case of power off.
Description
Technical field
The present invention relates to a kind of two-position three way automatic back flow multi-function electromagnetic valve, be mainly used in pipeline fluid transmission.
Background technique
In the robot control system(RCS) of fluid line, generally all control flow by installing valve body additional, due to the needs of various working condition and application, in existing technology, valve body is after closedown, the automatic pressure-relieving of the negative pressure managed after cannot completing valve and pipeline evacuation, particularly feedwater and beverage industry, after valve body closes feed-water end, still a large amount of water or beverage is stored in the pipeline at its waterexit end place, the meeting extreme influence food hygiene quality standard when this kind of medium extended residual is in managing, so this part medium will carry out emptying in time, threeway can only be installed additional to complete automatic pressure-relieving and emptying in prior art, so not only took up room but also increased cost of production.
In addition, the most of valve used in a lot of pipeline fluid is now solenoid valve, and solenoid valve needs electric power to support, once after power-off, this valve just cannot normally work, and produces impact greatly on water supply for beverage etc.
Summary of the invention
The technical issues that need to address of the present invention are, a kind of two-position three way automatic back flow multi-function electromagnetic valve is provided, can medium in time in emptying outlet end place pipeline, ensure the quality of the medium in outlet end pipeline, the folding of the form control valve that simultaneously the present invention can pull by hand, avoids the problem that solenoid valve under powering-off state cannot work.
Technological scheme of the present invention is: a kind of two-position three way automatic back flow multi-function electromagnetic valve, comprise valve body, valve body comprises fluid inlet and fluid output, spool part is provided with between fluid inlet and fluid output, described spool part comprise into medium primary valve with backflow secondary valve port, primary valve is provided with the seal membrane opening or closing primary valve, secondary valve port is provided with when opening with seal membrane closes secondary valve port automatically, the secondary valve sealing means of automatic open auxiliary valve port when closing with seal membrane, valve body is provided with the calutron and hand valve device that individually control seal membrane folding.
Preferably, described spool part is the spool cavity of up/down perforation, and primary valve to be positioned at above spool cavity and to communicate with fluid inlet, fluid output, and secondary valve port is positioned at below spool cavity, secondary valve port communicates with fluid output on the one hand, directly extends outside valve body on the other hand.
Preferably, described fluid inlet and fluid output level are located at the valve body left and right sides, and described spool cavity is vertically established, and the bottom surface of body cavity is inclined-plane obliquely.
Preferably, described seal membrane is soft seal membrane, is provided with electromagnetic activity plug above soft diaphragm, and electromagnetic activity plug outer cover has electromagnetic induction coil, is provided with secured core above electromagnetic activity plug.
Preferably, described valve body comprises lower valve body and bonnet, and seal membrane is a rubber sheet gasket, and rubber sheet gasket four corners are fixed between lower valve body and bonnet, and the position of electromagnetic activity plug is corresponding with the position of primary valve.
Preferably, bonnet is provided with the plug inner chamber for electromagnetic activity plug oscilaltion activity, and described secured core is positioned at plug inner chamber top, is provided with upper reset spring between electromagnetic activity plug and soft diaphragm.
Preferably, seal membrane is seal membrane, is provided with airtight atmospheric pressure cavity between seal membrane and body cavity, and the inner chamber of hand valve communicates with described airtight atmospheric pressure cavity on the one hand, communicates on the other hand with fluid output.
Preferably, described valve body comprises lower valve body and bonnet, seal membrane is between lower valve body and bonnet, described airtight atmospheric pressure cavity is formed between seal membrane and bonnet inner chamber, first passage is provided with between airtight atmospheric pressure cavity and the inner chamber of hand valve, be provided with 2 second channels between the inner chamber of described hand valve and fluid output, each second channel runs through the inwall of bonnet and lower valve body successively.
Preferably, described secondary valve sealing means comprises is located at telescopic auxiliary valve rod on secondary valve port, and auxiliary valve rod is being provided with backflow sealing block towards one end, primary valve direction, and described backflow sealing block is provided with resetting-mechanism.
Preferably, described secondary valve port is provided with secondary valve port end face, secondary valve port end face is at least provided with 1 return port, and secondary valve port center is provided with the center hole passed for auxiliary valve rod, and described resetting-mechanism is be located at the lower Returnning spring between backflow sealing block and secondary valve port end face.
After adopting the technical program, first, the secondary valve port of an automatic back flow is added in valve body, primary valve is as the central core of circulation of communication of fluid import and fluid output, when the seal membrane on primary valve opens the circulation effect of primary valve, medium directly passes primary valve from fluid inlet, and directly flows to fluid output, and secondary valve port automatically can be closed under secondary valve sealing means effect, medium now can not be back to secondary valve port; When seal membrane closes primary valve, the automatic open auxiliary valve port of secondary valve sealing means now on secondary valve port, now medium can be back to secondary valve port from the pipeline of fluid outlet, and outside final exits valve body, thus ensure medium can not prolonged stay in the pipeline of fluid outlet, ensure that from fluid output flow out medium be up-to-date all the time.
Secondly, valve body adds additional a hand valve device, hand valve device is the principle utilizing hand valve pull gas, air pressure in valve body is changed, and what primary valve in the present invention was arranged is the seal membrane of a slice flexibility, airtight atmospheric pressure cavity is had between seal membrane and body cavity, during hand valve pull gas, air pressure in sealing atmospheric pressure cavity changes, thus drive flexible seal membrane open or close primary valve, when primary valve is opened, fluid normally flows to fluid output from fluid input, when primary valve seals, fluid is blocked in primary valve, fluid output cannot be flow to, thus utilize the manual mode pulled to complete the working principle the same with solenoid valve, avoid the emergency situations that solenoid valve under powering-off state cannot work.
Accompanying drawing explanation
Accompanying drawing 1 is overall structure schematic diagram of the present invention;
Accompanying drawing 2 is exploded perspective view of the present invention;
Accompanying drawing 3 is cross-sectional schematic of the present invention;
Accompanying drawing 4 is media flow schematic diagram when primary valve opens and closes;
Accompanying drawing 5 is schematic top plan view of the present invention;
Accompanying drawing 6 is the structural representation of lower valve body;
Accompanying drawing 7 be in accompanying drawing 5 A to sectional view.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
As shown in Figures 1 to 7, a kind of two-position three way automatic back flow multi-function electromagnetic valve, solenoid valve comprises valve body, valve body comprises fluid inlet 11 and fluid output 12, part between fluid inlet and fluid output is body cavity, fluid in the present embodiment is for water, spool part is provided with between fluid inlet and fluid output, described spool part comprises the secondary valve port 32 of the primary valve 31 into water and backflow, primary valve is provided with the seal membrane opening or closing primary valve, secondary valve port is provided with when opening with seal membrane closes secondary valve port automatically, the secondary valve sealing means of automatic open auxiliary valve port when closing with seal membrane, valve body is provided with the calutron and hand valve device 6 that individually control seal membrane folding, namely two kinds of devices controlling seal membrane are had in the present embodiment, two devices can independent work, when circuit conditions is normal, calutron can be adopted to drive seal membrane, when running into emergency case power-off, calutron cannot work, hand valve device now can be adopted to drive seal membrane, in valve body, the secondary valve port of an automatic back flow is added in this programme, primary valve is as the central core of circulation of communication of fluid import and fluid output, when the seal membrane on primary valve opens the circulation effect of primary valve, medium directly passes primary valve from fluid inlet, and directly flow to fluid output, and secondary valve port automatically can be closed under secondary valve sealing means effect, medium now can not be back to secondary valve port, when seal membrane closes primary valve, the automatic open auxiliary valve port of secondary valve sealing means now on secondary valve port, now medium can be back to secondary valve port from the pipeline of fluid outlet, and outside final exits valve body, thus ensure medium can not prolonged stay in the pipeline of fluid outlet, ensure that from fluid output flow out medium be up-to-date all the time.This is the basic functional principle of solenoid valve in energising situation.
In addition shown in composition graphs 3 and Fig. 4, described spool part is the spool cavity of up/down perforation, spool cavity in this example is the cylindrical body of a up/down perforation, primary valve 31 to be positioned at above spool cavity and with fluid inlet 11, fluid output 12 communicates, secondary valve port is positioned at below spool cavity, secondary valve port communicates with fluid output on the one hand, directly extend outside valve body on the other hand, described cylindrical body spool part is arranged in body cavity, after water enters from fluid inlet, the very first time rests in body cavity, described seal membrane is between primary valve and body cavity, when seal membrane is opened, water enters primary valve from body cavity, and finally flow out from fluid outlet, as preferably, described fluid inlet and fluid output level are located at the valve body left and right sides, described spool cavity is vertically established, the bottom surface of described valve core inner chamber is inclined-plane 13 obliquely, this inclined-plane mainly guides water to flow toward primary valve direction, when primary valve is opened, water can enter in primary valve fast, and also have a bit, when primary valve is closed, the water stayed in body cavity automatically returns in the pipeline of water under ramp effect, ensure that valve body does not have medium.
Calutron described in the present embodiment, embodiment is as follows: be provided with electromagnetic activity plug 42 above seal membrane, electromagnetic activity plug outer cover has electromagnetic induction coil 43, secured core 44 is provided with above electromagnetic activity plug, during electromagnetic induction coil energising, electromagnetic activity plug produces magnetic force, can be attracting with the secured core of top, time attracting, electromagnetic activity plug rises automatically, thus drive seal membrane to be separated with primary valve, realize the function opening primary valve, when electromagnetic induction coil power-off, electromagnetic activity plug falls under gravity automatically, again by primary valve hermetically closing, valve body described in the present embodiment comprises lower valve body 1 and bonnet 2, bonnet is provided with the plug inner chamber 21 for electromagnetic activity plug oscilaltion activity, described secured core is positioned at plug inner chamber top, upper reset spring 22 is provided with between electromagnetic activity plug and seal membrane.Fluid inlet, fluid output, spool cavity are all located on lower valve body, seal membrane is a rubber sheet gasket, rubber sheet gasket four corners are fixed between lower valve body and bonnet, and the position of electromagnetic activity plug 42 is corresponding with the position of primary valve 31, and lower valve body and bonnet are fixed by four tapped holes on four corners, four corners of seal membrane are also provided with perforation, lower valve body, seal membrane, bonnet through this perforation, thus are fixed by 4 screws simultaneously, prevent its position to be moved.
Secondary valve sealing means described in the present embodiment comprises is located at telescopic auxiliary valve rod 51 on secondary valve port, the telescopic direction of auxiliary valve rod is the axial direction of spool cavity, auxiliary valve rod is being provided with the backflow sealing block 52 for sealing pair valve port towards one end, primary valve direction, described backflow sealing block is provided with resetting-mechanism, as preferably, described secondary valve port is provided with secondary valve port end face 321, backflow sealing block when pressing down and secondary valve port end face fit, realize the effect of sealing pair valve port, secondary valve port end face is at least provided with 1 return port, when the sealing block that refluxes does not press down, water can by outside return port exits valve body, secondary valve port end face center is provided with the center hole passed for auxiliary valve rod, described resetting-mechanism is be located at the lower Returnning spring 53 between backflow sealing block and secondary valve port end face.
Concrete automatic back flow working principle is as follows:
During original state, seal membrane and primary valve are fitted, primary valve is now in closed condition, primary valve cannot be passed through when water is come in, when electromagnetic induction coil is energized, electromagnetic activity plug produces magnetic force, now electromagnetic activity plug rises attracting with the secured core of top automatically, seal membrane intermediate portion is driven upwards to arch upward when electromagnetic activity plug rises, primary valve is now opened, water flows directly into from primary valve, backflow sealing block now is automatically pressed down under the flowing pressure of water, thus secondary valve port is closed, now water directly flows out from fluid outlet, this process is normal water flowing, concrete schematic diagram is the glide path of Fig. 4 hollow arrow indication.
When after electromagnetic induction coil power-off, the magnetic force of electromagnetic activity plug disappears, now electromagnetic activity plug falls automatically due to self gravitation reason from plug inner chamber, again primary valve is closed, now the hydraulic pressure refluxed on sealing block alleviates gradually, until disappear, by means of the effect of lower Returnning spring, backflow sealing block rises automatically, secondary valve port is now opened automatically, under the effect of pressure difference, the water being originally trapped in fluid outlet place can be back to secondary valve port, thus the most at last outside this part water exits valve body, concrete schematic diagram is the glide path of Fig. 4 filled arrows indication.
Certainly hand valve device is utilized also can to complete reflowing result described above, just instead of electromagnetic activity plug by the mode that hand valve pulls drives seal membrane folding, the embodiment of hand valve device is as follows: be provided with airtight atmospheric pressure cavity 20 between seal membrane and body cavity, the inner chamber of hand valve communicates with described airtight atmospheric pressure cavity 20 on the one hand, communicate with fluid output 12 on the other hand, concrete structure can see Fig. 7, described valve body comprises lower valve body 1 and bonnet 2, seal membrane is between lower valve body and bonnet, described airtight atmospheric pressure cavity is formed between seal membrane and bonnet inner chamber, first passage 201 is provided with between airtight atmospheric pressure cavity and the inner chamber of hand valve, 2 second channels 202 are provided with between the inner chamber of described hand valve and fluid output, second channel runs through the inwall of bonnet and lower valve body successively, when hand valve upwards pulls, air pressure in airtight atmospheric pressure cavity diminishes, when being less than hydrodynamic pressure, seal membrane is now due to the reason of draught head, can be separated with primary valve, even if be not separated, hydrodynamic pressure also can be washed seal membrane open and enter primary valve, water now directly flows to fluid output by primary valve, and when hand valve presses down, air pressure in sealing atmospheric pressure cavity becomes large, again fit with primary valve under the pressure of the air pressure up of seal membrane now, the air pressure now sealing atmospheric pressure cavity is greater than hydrodynamic pressure, namely primary valve is closed, water now cannot pass through primary valve, second channel in the present embodiment is the built-in discharge channel of valve body, and the second channel in the present embodiment has two, symmetrically establish with the center of hand valve respectively, aperture can arrange a little bit smaller, the length of fluid output can be reduced.
Simultaneously, be provided with in the inner chamber of hand valve and pull valve rod 61, pull valve rod and be provided with hand valve Returnning spring, pull valve stem top and be connected with steel wire, hand valve Returnning spring does not indicate in the drawings, because its position can change, can be located in hand valve inner chamber, also can be set between steel wire and hand valve outward, its Main Function be manual pull pull valve rod after can automatically reset.
Below only just the present invention preferably example be described, but can not be interpreted as it is limitations on claims.The present invention not only limits to and above example, and its concrete structure allows to change, and those skilled in the art can make various change and distortion according to the present invention, only otherwise depart from spirit of the present invention, all should belong to the scope that claims of the present invention define.
Claims (10)
1. a two-position three way automatic back flow multi-function electromagnetic valve, comprise valve body, valve body comprises fluid inlet (11) and fluid output (12), spool part is provided with between fluid inlet and fluid output, it is characterized in that: described spool part comprise into medium primary valve (31) with backflow secondary valve port (32), primary valve is provided with the seal membrane opening or closing primary valve, secondary valve port is provided with when opening with seal membrane closes secondary valve port automatically, the secondary valve sealing means of automatic open auxiliary valve port when closing with seal membrane, valve body is provided with the calutron and hand valve device (6) that individually control seal membrane folding.
2. a kind of two-position three way automatic back flow multi-function electromagnetic valve according to claim 1, it is characterized in that: described spool part is the spool cavity of up/down perforation, primary valve (31) to be positioned at above spool cavity and to communicate with fluid inlet (11), fluid output (12), secondary valve port is positioned at below spool cavity, secondary valve port communicates with fluid output on the one hand, directly extends outside valve body on the other hand.
3. a kind of two-position three way automatic back flow multi-function electromagnetic valve according to claim 2, it is characterized in that: described fluid inlet and fluid output level are located at the valve body left and right sides, described spool cavity is vertically established, and the bottom surface of body cavity is inclined-plane (13) obliquely.
4. a kind of two-position three way automatic back flow multi-function electromagnetic valve according to claim 2, it is characterized in that: described seal membrane is rubber sheet gasket (41), electromagnetic activity plug (42) is provided with above rubber sheet gasket, electromagnetism plug outer cover has electromagnetic induction coil (43), is provided with secured core (44) above electromagnetism plug.
5. a kind of two-position three way automatic back flow multi-function electromagnetic valve according to claim 4, it is characterized in that: described valve body comprises lower valve body (1) and bonnet (2), rubber sheet gasket four corners are fixed between lower valve body and bonnet, and the position of electromagnetic activity plug (42) is corresponding with the position of primary valve (31).
6. a kind of two-position three way automatic back flow multi-function electromagnetic valve according to claim 5, it is characterized in that: bonnet is provided with the plug inner chamber (21) of power supply magnetic core stick oscilaltion activity, described secured core is positioned at plug inner chamber top, is provided with upper reset spring (22) between electromagnetism plug and soft diaphragm.
7. a kind of two-position three way automatic back flow multi-function electromagnetic valve according to claim 2, it is characterized in that: seal membrane is rubber sheet gasket, airtight atmospheric pressure cavity (20) is provided with between seal membrane and body cavity, the inner chamber of hand valve communicates with described airtight atmospheric pressure cavity (20) on the one hand, communicates on the other hand with fluid output (12).
8. a kind of two-position three way automatic back flow multi-function electromagnetic valve according to claim 7, it is characterized in that: described valve body comprises lower valve body (1) and bonnet (2), seal membrane is between lower valve body and bonnet, described airtight atmospheric pressure cavity is formed between seal membrane and bonnet inner chamber, first passage (201) is provided with between airtight atmospheric pressure cavity and the inner chamber of hand valve, be provided with 2 second channels (202) between the inner chamber of described hand valve and fluid output, each second channel runs through the inwall of bonnet and lower valve body successively.
9. a kind of two-position three way automatic back flow multi-function electromagnetic valve according to claim 2, it is characterized in that: described secondary valve sealing means comprises is located at telescopic auxiliary valve rod (51) on secondary valve port, auxiliary valve rod is being provided with backflow sealing block (52) towards one end, primary valve direction, described backflow sealing block is provided with resetting-mechanism.
10. a kind of two-position three way automatic back flow multi-function electromagnetic valve according to claim 9, it is characterized in that: described secondary valve port is provided with secondary valve port end face (321), secondary valve port end face is at least provided with 1 return port, secondary valve port center is provided with the center hole passed for auxiliary valve rod, and described resetting-mechanism is be located at the lower Returnning spring (53) between backflow sealing block and secondary valve port end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510442656.3A CN105114658A (en) | 2015-07-22 | 2015-07-22 | Two-position three-way and automatic reflowing type multifunctional solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510442656.3A CN105114658A (en) | 2015-07-22 | 2015-07-22 | Two-position three-way and automatic reflowing type multifunctional solenoid valve |
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| CN105114658A true CN105114658A (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510442656.3A Pending CN105114658A (en) | 2015-07-22 | 2015-07-22 | Two-position three-way and automatic reflowing type multifunctional solenoid valve |
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| CN (1) | CN105114658A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087592A (en) * | 2017-12-28 | 2018-05-29 | 余姚市宇海畜牧机械科技有限公司 | The automatically controlled gas circuit conversion equipment of herding |
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| CN2237157Y (en) * | 1995-11-07 | 1996-10-09 | 鞍山市盛尧电子仪器仪表有限公司 | Spring pneumatic electromagnetic valve |
| JP2002286158A (en) * | 2001-03-27 | 2002-10-03 | Maezawa Kyuso Industries Co Ltd | Electromagnetic stop cock |
| CN201071959Y (en) * | 2007-08-22 | 2008-06-11 | 贺勇锋 | Steam-controlled solenoid valve |
| CN201100448Y (en) * | 2007-06-06 | 2008-08-13 | 蹇学军 | Multi-function water supply valve |
| CN202992272U (en) * | 2012-11-15 | 2013-06-12 | 王鑫 | Electromagnetic valve |
| CN203670886U (en) * | 2013-11-28 | 2014-06-25 | 上海麦喀斯机械设备有限公司 | Tee valve |
-
2015
- 2015-07-22 CN CN201510442656.3A patent/CN105114658A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2237157Y (en) * | 1995-11-07 | 1996-10-09 | 鞍山市盛尧电子仪器仪表有限公司 | Spring pneumatic electromagnetic valve |
| JP2002286158A (en) * | 2001-03-27 | 2002-10-03 | Maezawa Kyuso Industries Co Ltd | Electromagnetic stop cock |
| CN201100448Y (en) * | 2007-06-06 | 2008-08-13 | 蹇学军 | Multi-function water supply valve |
| CN201071959Y (en) * | 2007-08-22 | 2008-06-11 | 贺勇锋 | Steam-controlled solenoid valve |
| CN202992272U (en) * | 2012-11-15 | 2013-06-12 | 王鑫 | Electromagnetic valve |
| CN203670886U (en) * | 2013-11-28 | 2014-06-25 | 上海麦喀斯机械设备有限公司 | Tee valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087592A (en) * | 2017-12-28 | 2018-05-29 | 余姚市宇海畜牧机械科技有限公司 | The automatically controlled gas circuit conversion equipment of herding |
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Application publication date: 20151202 |