CN106678388A - Step-by-step direct-acting electromagnetic valve - Google Patents
Step-by-step direct-acting electromagnetic valve Download PDFInfo
- Publication number
- CN106678388A CN106678388A CN201710109531.8A CN201710109531A CN106678388A CN 106678388 A CN106678388 A CN 106678388A CN 201710109531 A CN201710109531 A CN 201710109531A CN 106678388 A CN106678388 A CN 106678388A
- Authority
- CN
- China
- Prior art keywords
- valve
- iron core
- diaphragm
- electromagnetic valve
- dynamic iron
- Prior art date
- 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.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 14
- 239000010935 stainless steel Substances 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 18
- 230000014759 maintenance of location Effects 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000003825 pressing Methods 0.000 abstract description 4
- 239000012528 membrane Substances 0.000 abstract 8
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
- F16K7/14—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
-
- 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
Abstract
The invention discloses a step-by-step direct-acting electromagnetic valve. The step-by-step direct-acting electromagnetic valve comprises a valve body and a valve deck which are matched with each other. An air inlet and an air outlet are formed in the valve body. The air inlet communicates with an air inlet cavity. The air outlet communicates with an air outlet cavity. The step-by-step direct-acting electromagnetic valve is characterized in that an electromagnet assembly is assembled on the upper portion of the valve deck; a membrane assembly is arranged between the valve body and the valve deck and comprises a membrane, a valve element and a pressing piece; the pressing piece is attached to the upper surface of the membrane, and the pressing piece and the membrane are assembled on the lower portion of the valve element together; the periphery of the membrane is fixed between the valve body and the valve deck; an air passing hole communicating with the air inlet cavity is formed in the membrane; an exhaust hole is formed in the center of the valve element; the upper end of the valve element and the lower end of a moving iron core of the electromagnet assembly cooperate to form a first valve port; the lower surface of the membrane and the valve body cooperate to form a second valve port; and a stainless steel press plate is arranged at the position, located above the membrane, in the valve deck. The step-by-step direct-acting electromagnetic valve has the beneficial effects of being reasonable in structure, long in service life and low in maintenance cost.
Description
Technical field
The present invention relates to electromagnetic valve manufacturing technology field, a kind of especially step direct-acting type electromagnetic valve.
Background technology
General electromagnetic valve is made up of magnet exciting coil, secured core, compression spring, movable core, valve body etc..Its work is former
Manage and be, when magnet exciting coil no power, the seal head of secured core is in compression spring and the back pressure effect of valve air inlet medium
Under, make valve closing.When being powered to magnet exciting coil, electromagnetic force overcomes the anti-work of the back pressure of compression spring and valve air inlet medium
Firmly, movable core is made to move toward at secured core, until two plane adhesives, now valve is in open mode.
Step direct-acting type electromagnetic valve, it is the principle that a kind of direct acting and pilot-operated type combine, and is typically arranged in its electromagnetic valve
There are the first valve port and the second valve port, by controlling the pressure differential in electromagnetic valve in each cavity, progressively open the first valve port and second
Valve port, so as to realize the purpose that substep is opened.Now part step direct-acting type electromagnetic valve realizes valve port using diaphragm unit
Open and close, and when electromagnetic valve is opened, diaphragm produces deformation and is chronically at deformed state, is caused due to long-term auxetic
Its service life is short, affects the stable operation of step direct-acting type electromagnetic valve, increased its maintenance cost, thus its structure need into
One step is improved.
The content of the invention
The technical problem to be solved is the present situation for prior art, there is provided rational in infrastructure, long service life,
A kind of low step direct-acting type electromagnetic valve of maintenance cost.
The present invention solve the technical scheme that adopted of above-mentioned technical problem for：
A kind of step direct-acting type electromagnetic valve, includes the valve body and valve gap being adapted, and air inlet and gas outlet are offered on valve body,
Air inlet is connected with inlet chamber, and gas outlet is connected with outlet chamber, it is characterized in that：Valve gap top is equipped with electromagnet assembly,
Diaphragm unit is provided between valve body and valve gap, diaphragm unit includes diaphragm, valve element and compressing member, and compressing member is upper with diaphragm
Surface is affixed, and the bottom of valve element is together assemblied in diaphragm, and the periphery of diaphragm is fixed between valve body and valve gap, sets on diaphragm
It is equipped with the air passing hole being connected with inlet chamber, valve element is provided centrally with steam vent, and the upper end of valve element is dynamic with electromagnet assembly
The lower end of iron core is engaged to form the first valve port, and the lower surface of diaphragm is engaged to form the second valve port with valve body；It is located in valve gap
Stainless steel platen is provided with above the diaphragm.
The technical measures of optimization also include：
Above-mentioned electromagnet assembly includes shell, coil brace, the coil being wound on coil brace, is assemblied in coil brace
The sleeve pipe of the heart, the sleeve pipe interior energy dynamic iron core for moving up and down and the static iron core for being fixed on sleeve upper end, static iron core and dynamic iron core it
Between be provided with dynamic iron core spring.
The top exterior of the lower end of above-mentioned dynamic iron core and the valve element is furnished with an extension spring, and the lower end of dynamic iron core is arranged
The upper end for having crook, extension spring is engaged with crook, and a cannelure, the lower end of extension spring are provided with the middle part of valve element
It is engaged with cannelure.
The section of above-mentioned stainless steel platen is in "eight" shape structure, lower surface and the diaphragm phase of the outer of stainless steel platen
Patch.
The central upper portion of above-mentioned dynamic iron core is provided with spring retention chamber, and the bottom of dynamic iron core spring is as the spring retention
Intracavity.
The lower end of above-mentioned dynamic iron core is equipped with sealing gasket, and sealing gasket is engaged with first valve port.
Above-mentioned valve element is located at the tapered structure in periphery of the first valve port.
It is in arc-shaped structure that above-mentioned valve body is located at the second valve port.
Mount support is provided with outside the bottom of above-mentioned sleeve pipe, the mount support is mutually fixed with valve gap.
Sealing gasket is provided between above-mentioned mount support and valve gap.
A kind of step direct-acting type electromagnetic valve of the present invention, rational in infrastructure, this electromagnetic valve is provided with the first valve port and the second valve port,
Gas enters inlet chamber from air inlet, then forms air pressure by diaphragm and valve body pressure by the air passing hole entrance diaphragm top on diaphragm
Tightly, after electric magnet is powered, dynamic iron core is moved upwards, so that the first valve port is opened, the gas above diaphragm is arranged from steam vent
Remove, diaphragm top air pressure reduces, and the second valve port is opened, the gas of air inlet intracavity just directly Jing outlet chambers can be excluded from gas outlet,
The substep for being so also achieved that electromagnetic valve is opened；This electromagnetic valve is located above the diaphragm in valve gap and is provided with rustless steel
Pressing plate, can avoid the permanent auxetic of diaphragm, can extend the service life of diaphragm, reduce the maintenance cost of electromagnetic valve；Together
When, the setting of stainless steel platen also plays position-limiting action, limits the convex amplitude of diaphragm, opens each electromagnetic valve
When, diaphragm can be co-located, can keep the concordance of each electromagnetic valve opening degree.
Description of the drawings
Fig. 1 is the cross section structure diagram of the present invention；
Fig. 2 is I portions enlarged drawing in Fig. 1；
Fig. 3 is II enlarged drawing in Fig. 1.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
It is as shown in Figure 1 to Figure 3 the structural representation of the present invention,
Reference therein is：First valve port a, the second valve port b, valve body 1, air inlet 11, inlet chamber 11a, gas outlet 12, go out
Air cavity 12a, valve gap 2, shell 31, coil brace 32, coil 33, sleeve pipe 34, dynamic iron core 35, crook 35a, spring retention chamber
35b, sealing gasket 35c, static iron core 36, dynamic iron core spring 37, mount support 38, diaphragm 41, air passing hole 41a, valve element 42, steam vent
42a, cannelure 42b, compressing member 43, stainless steel platen 5, extension spring 6, sealing gasket 7.
As shown in Figure 1 to Figure 3,
A kind of step direct-acting type electromagnetic valve, includes the valve body 1 and valve gap 2 being adapted, and air inlet 11 is offered on valve body 1 and is gone out
QI KOU 12, air inlet 11 is connected with inlet chamber 11a, and gas outlet 12 is connected with outlet chamber 12a, it is characterized in that：The top of valve gap 2
Be equipped with electromagnet assembly, be provided with diaphragm unit between valve body 1 and valve gap 2, diaphragm unit include diaphragm 41, valve element 42 and
Compressing member 43, compressing member 43 is affixed with the upper surface of diaphragm 41, and the bottom of valve element 42 is together assemblied in diaphragm 41, diaphragm 41
Periphery be fixed between valve body 1 and valve gap 2, the air passing hole 41a being connected with inlet chamber 11a, valve element are provided with diaphragm 41
42 are provided centrally with steam vent 42a, and the upper end of valve element 42 is engaged to form with the lower end of the dynamic iron core 35 of electromagnet assembly
One valve port a, the lower surface of diaphragm 41 is engaged to form the second valve port b with valve body 1；Positioned at the top of the diaphragm 41 in valve gap 2
It is provided with stainless steel platen 5.
In embodiment, electromagnet assembly include shell 31, coil brace 32, be wound on coil brace 32 coil 33,
It is assemblied in the sleeve pipe 34 at the center of coil brace 32, the dynamic iron core 35 that the interior energy of sleeve pipe 34 is moved up and down and is fixed on the upper end of sleeve pipe 34
Static iron core 36, dynamic iron core spring 37 is provided between static iron core 36 and dynamic iron core 35.
In embodiment, the top exterior of the lower end of dynamic iron core 35 and the valve element 42 is furnished with an extension spring 6, dynamic iron core 35
Lower end be provided with crook 35a, the upper end of extension spring 6 is engaged with crook 35a, and the middle part of valve element 42 is provided with a ring
Shape groove 42b, the lower end of extension spring 6 is engaged with cannelure 42b.
Arranging extension spring 6 can increase the linkage of dynamic iron core 35 and diaphragm unit component, so as to strengthen electromagnetic valve
Susceptiveness.
In embodiment, the section of stainless steel platen 5 is in "eight" shape structure, the lower surface of the outer of stainless steel platen 5 with
Diaphragm 41 is affixed.
The inclined-plane of the bottom of stainless steel platen 5, makes that diaphragm 41 is convex to allow to preferably fit with stainless steel platen 5, energy
Enough improve the service life of diaphragm 41；Stainless steel platen 5 can also play position-limiting action, that is, limit the convex degree of diaphragm 41,
When opening each electromagnetic valve, diaphragm 41 can be convex to same position, so ensure that the concordance that electromagnetic valve is opened.
In embodiment, the central upper portion of dynamic iron core 35 is provided with spring retention chamber 35b, the bottom of dynamic iron core spring 37 as
In spring retention chamber 35b.Arranging spring retention chamber 35b can make the structure of whole electromagnetic valve more compact.
In embodiment, the lower end of dynamic iron core 35 is equipped with sealing gasket 35c, and sealing gasket 35c matches with the first valve port a
Close.The setting of sealing gasket 35c ensure that the sealing at the first valve port a.
In embodiment, valve element 42 is located at the tapered structure in periphery of the first valve port a.
In embodiment, it is in arc-shaped structure that valve body 1 is located at the second valve port b.
The arc-shaped structure at pyramidal structure and the second valve port b at first valve port a, its effect is identical, is provided to subtract
The contact surface of correlated parts at little sealing, reduces the processing request of contact surface, reduces processing cost.
In embodiment, mount support 38 is provided with outside the bottom of sleeve pipe 34, the mount support 38 is mutually fixed with valve gap 2.
In embodiment, sealing gasket 7 is provided between mount support 38 and valve gap 2.The setting of sealing gasket 7, it is ensured that assembling
Sealing between support 38 and valve gap 2.
Operation principle：
In the case where electric magnet is not powered on, dynamic iron core 35 is moved to lower limit, dynamic iron core in the presence of dynamic iron core spring 37
The sealing gasket 35c of 35 lower ends is close to so as to the first valve port a be closed with the first valve port a phases, meanwhile, dynamic iron core 35 promotes diaphragm group
The valve element 42 of part is moved downward, and is affixed the valve port b of diaphragm 41 and second so as to the second valve port b be closed.
Gas enters inlet chamber 11a from air inlet 11, then from above the air passing hole 41a entrance diaphragms 41 of diaphragm 41, due to
At this moment the first valve port a is to close, gas the top of diaphragm 41 constantly aggregation and produce air pressure, the air pressure of the top of diaphragm 41 is by film
Piece 41 is more tightly pressed on the second valve port b, so as to ensure that the sealing of the second valve port b.
Electromagnetic force is produced after electric magnet is powered, makes dynamic iron core 35 overcome the elastic force of dynamic iron core spring 37 to move upwards, made
The lower end of dynamic iron core 35 departs from the first valve port a, so that the first valve port a is opened；The gas of the top of diaphragm 41 is from valve element 42
The steam vent 42a of the heart is discharged, so that the air pressure of the top of diaphragm 41 reduces；As the air pressure of the top of diaphragm 41 reduces, diaphragm 41
Depart from the second valve port b so that the second valve port b is opened.After the second valve port b is opened, gas is just directly from inlet chamber 11a Jing
Outlet chamber 12a is discharged from gas outlet 12.
Because the lower end of dynamic iron core 35 and the top exterior of valve element 42 are furnished with extension spring 6, move upwards in dynamic iron core 35
When, extension spring 6 is stretched, and the pulling force produced after stretching of extension spring 6 can accelerate the motion upwards of valve element 42, so as to add
The opening speed of fast second valve port b, improves the response speed of electromagnetic valve.
This electromagnetic valve is applicable not only to gas medium, is applied equally to water or oil.
Highly preferred embodiment of the present invention is illustrated, and the various change made by those of ordinary skill in the art or remodeling are not
Can depart from the scope of the present invention.
Claims (10)
1. a kind of step direct-acting type electromagnetic valve, includes the valve body (1) and valve gap (2) being adapted, and opens up on described valve body (1)
There are air inlet (11) and gas outlet (12), air inlet (11) is connected with inlet chamber (11a), gas outlet (12) and outlet chamber
(12a) it is connected, it is characterized in that：Described valve gap (2) top is equipped with electromagnet assembly, described valve body (1) and valve gap (2)
Between be provided with diaphragm unit, described diaphragm unit includes diaphragm (41), valve element (42) and compressing member (43), described pressure
Tight part (43) is affixed with the upper surface of diaphragm (41), and the bottom of valve element (42), described film are together assemblied in diaphragm (41)
The periphery of piece (41) is fixed between valve body (1) and valve gap (2), is provided with described diaphragm (41) and inlet chamber (11a) phase
The air passing hole (41a) of connection, described valve element (42) is provided centrally with steam vent (42a), the upper end of described valve element (42)
Be engaged to form the first valve port (a) with the lower end of the dynamic iron core (35) of electromagnet assembly, the lower surface of described diaphragm (41) with
Valve body (1) is engaged to form the second valve port (b)；Be located in described valve gap (2) above the diaphragm (41) be provided with it is stainless
Keeper plate of steel (5).
2. a kind of step direct-acting type electromagnetic valve according to claim 1, is characterized in that：Described electromagnet assembly includes outer
Shell (31), coil brace (32), the coil (33) being wound on coil brace (32), the set that is assemblied in coil brace (32) center
Pipe (34), sleeve pipe (34) the interior energy dynamic iron core (35) for moving up and down and the static iron core (36) for being fixed on sleeve pipe (34) upper end, institute
Dynamic iron core spring (37) is provided between the static iron core (36) stated and dynamic iron core (35).
3. a kind of step direct-acting type electromagnetic valve according to claim 2, is characterized in that：The lower end of described dynamic iron core (35)
It is furnished with an extension spring (6) with the top exterior of the valve element (42), the lower end of described dynamic iron core (35) is provided with crook
(35a), the upper end of extension spring (6) is engaged with crook (35a), and in the middle part of described valve element (42) cannelure is provided with
(42b), the lower end of extension spring (6) is engaged with cannelure (42b).
4. a kind of step direct-acting type electromagnetic valve according to claim 3, is characterized in that：Described stainless steel platen (5)
Section is in "eight" shape structure, and the lower surface of the outer of described stainless steel platen (5) is affixed with diaphragm (41).
5. a kind of step direct-acting type electromagnetic valve according to claim 4, is characterized in that：The top of described dynamic iron core (35)
Spring retention chamber (35b) is provided centrally with, the bottom of described dynamic iron core spring (37) is interior as the spring retention chamber (35b).
6. a kind of step direct-acting type electromagnetic valve according to claim 5, is characterized in that：The lower end of described dynamic iron core (35)
Sealing gasket (35c) is equipped with, described sealing gasket (35c) is engaged with first valve port (a).
7. a kind of step direct-acting type electromagnetic valve according to claim 6, is characterized in that：Described valve element (42) is positioned at first
The tapered structure in periphery of valve port (a).
8. a kind of step direct-acting type electromagnetic valve according to claim 7, is characterized in that：Described valve body (1) is positioned at second
Valve port (b) is in arc-shaped structure.
9. a kind of step direct-acting type electromagnetic valve according to claim 8, is characterized in that：Outside the bottom of described sleeve pipe (34)
Mount support (38) is provided with, the mount support (38) is mutually fixed with valve gap (2).
10. a kind of step direct-acting type electromagnetic valve according to claim 9, is characterized in that：Described mount support (38) with
Sealing gasket (7) is provided between valve gap (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710109531.8A CN106678388A (en) | 2017-02-27 | 2017-02-27 | Step-by-step direct-acting electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710109531.8A CN106678388A (en) | 2017-02-27 | 2017-02-27 | Step-by-step direct-acting electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106678388A true CN106678388A (en) | 2017-05-17 |
Family
ID=58862520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710109531.8A Pending CN106678388A (en) | 2017-02-27 | 2017-02-27 | Step-by-step direct-acting electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106678388A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930796A (en) * | 2017-05-25 | 2018-12-04 | 浙江新特立汽车电器有限公司 | A kind of electromagnetic gas valve assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040108485A1 (en) * | 2002-12-06 | 2004-06-10 | Chun-Hung Lin | Diaphragm valve |
| CN201344278Y (en) * | 2009-03-10 | 2009-11-11 | 蒋可贞 | Diaphragm type solenoid valve with large flow capacity |
| CN103185150A (en) * | 2011-12-31 | 2013-07-03 | 丹佛斯（天津）有限公司 | Electromagnetic valve |
| CN104806798A (en) * | 2015-05-06 | 2015-07-29 | 江苏融通阀门机械有限公司 | Pressure reducing valve |
| CN106168303A (en) * | 2016-08-26 | 2016-11-30 | 北京控制工程研究所 | A kind of micrometeor high accuracy lightweight miniaturization pressure maintaining valve |
| CN206468838U (en) * | 2017-02-27 | 2017-09-05 | 星宇电子(宁波)有限公司 | A kind of step direct-acting type electromagnetic valve |
-
2017
- 2017-02-27 CN CN201710109531.8A patent/CN106678388A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040108485A1 (en) * | 2002-12-06 | 2004-06-10 | Chun-Hung Lin | Diaphragm valve |
| CN201344278Y (en) * | 2009-03-10 | 2009-11-11 | 蒋可贞 | Diaphragm type solenoid valve with large flow capacity |
| CN103185150A (en) * | 2011-12-31 | 2013-07-03 | 丹佛斯（天津）有限公司 | Electromagnetic valve |
| CN104806798A (en) * | 2015-05-06 | 2015-07-29 | 江苏融通阀门机械有限公司 | Pressure reducing valve |
| CN106168303A (en) * | 2016-08-26 | 2016-11-30 | 北京控制工程研究所 | A kind of micrometeor high accuracy lightweight miniaturization pressure maintaining valve |
| CN206468838U (en) * | 2017-02-27 | 2017-09-05 | 星宇电子(宁波)有限公司 | A kind of step direct-acting type electromagnetic valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930796A (en) * | 2017-05-25 | 2018-12-04 | 浙江新特立汽车电器有限公司 | A kind of electromagnetic gas valve assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201344281Y (en) | Pilot-operated dished diaphragm solenoid valve | |
| US20180209412A1 (en) | Piezoelectric ceramic air pump and construction method thereof | |
| WO2013097446A1 (en) | Solenoid valve | |
| CN206468838U (en) | A kind of step direct-acting type electromagnetic valve | |
| CN106678388A (en) | Step-by-step direct-acting electromagnetic valve | |
| CN205388179U (en) | High -frequency proportion solenoid valve | |
| CN207005391U (en) | A kind of time-lapse faucet | |
| CN106762567A (en) | A kind of electromagnet constant displacement pump | |
| CN104613216A (en) | Dual-working-condition electromagnetic valve for water dispenser | |
| CN209085856U (en) | A kind of pre- cubing of solenoid valve | |
| CN201827470U (en) | Electronic pressure adjusting valve | |
| CN101975291A (en) | Electron pressure regulating valve | |
| CN210739476U (en) | Gas pipeline self-closing valve | |
| JP4856462B2 (en) | Solenoid valve with pilot valve | |
| CN102777667B (en) | Electromagnetic automatic control valve | |
| CN204828811U (en) | Secondary air solenoid valve and check valve integral structure | |
| US20140061526A1 (en) | Diaphragm valve | |
| WO2018214250A1 (en) | Novel air intake pressure relief valve of automotive turbocharger | |
| CN210531115U (en) | Integrated pump valve and equipment thereof | |
| CN214578873U (en) | Piston type pulse valve | |
| CN105135030B (en) | A kind of Means of Secondary Air Supplement device for locomotive | |
| CN219534402U (en) | Breathable through hole structure of explosion-proof relay | |
| CN207864683U (en) | A kind of pneumatic diaphragm valve | |
| CN210531694U (en) | Sensitive response one-way valve structure | |
| CN216789267U (en) | Hydrogen isolation valve structure for fuel cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |
|
| RJ01 | Rejection of invention patent application after publication |