CN104819334A - Pilot type membrane electromagnetic switch valve - Google Patents
Pilot type membrane electromagnetic switch valve Download PDFInfo
- Publication number
- CN104819334A CN104819334A CN201510218683.2A CN201510218683A CN104819334A CN 104819334 A CN104819334 A CN 104819334A CN 201510218683 A CN201510218683 A CN 201510218683A CN 104819334 A CN104819334 A CN 104819334A
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- China
- Prior art keywords
- electromagnetic switch
- valve
- main valve
- core assembly
- pilot
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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
- 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
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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 pilot type membrane electromagnetic switch valve. The pilot type membrane electromagnetic switch valve comprises a valve body, a main valve core, a movable iron core module, a magnetism isolating pipe, a membrane and a coil assembly, wherein a liquid inlet and a liquid outlet are formed in two ends of the valve body, the main valve core is arranged on the valve body through a valve cover, a pilot hole is formed in the center of the main valve core, the membrane used to separate the liquid inlet from the liquid outlet is arranged on the main valve core, the movable iron core module is arranged above the main valve core, the magnetism isolating pipe sleeves the movable iron core module, the coil assembly is arranged on the exterior of the magnetism isolating pipe, and locked through a nut, a reset spring is arranged between the movable iron core module and the magnetism isolating pipe, a containing cavity is formed in the bottom surface of the movable iron core module, a pilot hole sealing module is arranged in the containing cavity, and a filter screen is arranged on the liquid inlet. The pilot type membrane electromagnetic switch valve can effectively filter impurities in a medium pipeline, and has the advantages of being simple in structure, convenient to maintain, and high in reliability.
Description
Technical field
The present invention relates to a kind of electromagnetic switch valve, particularly relate to a kind of liquid-working-medium being applicable to impurity, the pilot type diaphragm electromagnetic switch valve of pipeline break-make can be realized.
Background technique
Guide electromagnetic valve is a kind of relatively more conventional solenoid valve in hydraulic system.The on-off function of electromagnetic switch valve in pipeline mainly relies on the diaphragm on main valve plug to realize, and the sealing between diaphragm and valve directly affects the performance of whole valve.In actual conditions, the impurity in liquid medium very easily causes that stuck, the valve seal of main valve plug is tight or the damping hole of diaphragm blocks, and causes magnetic switch defective valve, thus affects the use of whole system.
Summary of the invention
The object of the present invention is to provide a kind of pilot type diaphragm electromagnetic switch valve, its feature that there is good airproof performance and be more suitable for impurity liquid medium, to solve the problems referred to above that in prior art, pilot type diaphragm electromagnetic switch valve exists.
For reaching this object, the present invention by the following technical solutions:
A kind of pilot type diaphragm electromagnetic switch valve, it comprises valve body, main valve plug, dynamic core assembly, plunger tube, diaphragm and coil assembly, the two ends of described valve body are provided with the liquid entering hole and liquid outlet that are connected, described main valve plug is arranged on described valve body by valve gap, the center of described main valve plug offers pilot hole, and described main valve plug is provided with for cut off into, the diaphragm of liquid outlet, described dynamic core assembly is arranged at the top of described main valve plug, described plunger tube is placed on outside described dynamic core assembly, described coil assembly is arranged at described plunger tube outward also with nut check, the Returnning spring for dynamic core assembly is provided with between described dynamic core assembly and described plunger tube, wherein, the position of the corresponding described pilot hole in bottom surface of described dynamic core assembly offers holding cavity, pilot hole black box is provided with in described holding cavity, described liquid entering hole place is provided with filter screen.
Especially, described pilot hole black box comprises and is arranged at Packing spring in described holding cavity and pilot hole sealing gasket from inside to outside.
Especially, seal ring is provided with between described valve body and described valve gap and between described valve gap and described plunger tube.
Especially, described filter screen is the long cone structure of one end open, and its opening end coordinates the internal diameter of liquid entering hole to arrange, and the opening end of described filter screen is arranged in liquid entering hole by back-up ring.
Especially, described filter screen is made up of stainless steel material.
Beneficial effect of the present invention is, the black box compared with prior art arranged between the dynamic core assembly bottom surface of described pilot type diaphragm electromagnetic switch valve and pilot hole, install filtrating equipment additional in described liquid entering hole simultaneously, valve is made not only to have more excellent sealing, and there is contamination resistance, require greatly to lower to the turbidity test of working medium, effectively improve reliability and the life-span of electromagnetic switch valve.
Accompanying drawing explanation
Fig. 1 is the sectional drawing of the pilot type diaphragm electromagnetic switch valve that the specific embodiment of the invention 1 provides;
Fig. 2 is the plan view of the pilot type diaphragm electromagnetic switch valve that the specific embodiment of the invention 1 provides.
In figure:
1, valve body; 2, main valve plug; 3, dynamic core assembly; 4, plunger tube; 5, diaphragm; 6, coil assembly; 7, liquid entering hole; 8, liquid outlet; 9, valve gap; 10, pilot hole; 11, nut; 12, Returnning spring; 13, holding cavity; 14, Packing spring; 15, pilot hole sealing gasket; 16, filter screen; 17, back-up ring; 18, seal ring.
Embodiment
Technological scheme of the present invention is further illustrated by embodiment below in conjunction with accompanying drawing.
Refer to shown in Fig. 1 and Fig. 2, in the present embodiment, a kind of pilot type diaphragm electromagnetic switch valve comprises valve body 1, main valve plug 2, dynamic core assembly 3, plunger tube 4, diaphragm 5 and coil assembly 6, the two ends of described valve body 1 are provided with the liquid entering hole 7 and liquid outlet 8 that are connected, described main valve plug 2 is arranged on described valve body 1 by valve gap 9, the corresponding fluid passage in center of described main valve plug 2 offers pilot hole 10, and the diaphragm 5 described main valve plug 2 is provided with for cutting off liquid entering hole 7 and liquid outlet 8, described dynamic core assembly 3 is arranged at the top of described main valve plug 2, described plunger tube 4 is placed on outside described dynamic core assembly 3, described coil assembly 6 is arranged at outside described plunger tube 4 and also locks with nut 11, the Returnning spring 12 for dynamic core assembly 3 is provided with between described dynamic core assembly 3 and described plunger tube 4, described dynamic core assembly 3 moves up and down along the endoporus of described plunger tube 4, the position of the corresponding described pilot hole 10 in bottom surface of described dynamic core assembly 3 offers holding cavity 13, Packing spring 14 and pilot hole sealing gasket 15 is disposed with from inside to outside in described holding cavity 13, to increase the sealing at poppet port place.
Described liquid entering hole 7 place is provided with filter screen 16, effectively can filter out the impurity in working medium.Described filter screen 16 is made up of stainless steel, and it is the long cone structure of one end open, and its opening end coordinates the internal diameter of liquid entering hole 7 to arrange, and the opening end of described filter screen 16 is arranged in liquid entering hole 7 by back-up ring 17.
Seal ring 18 is provided with between described valve body 1 and described valve gap 9 and between described valve gap 9 and described plunger tube 4.To increase the sealing of electromagnetic switch valve.
During work, pilot hole 10 on main valve plug 2 is opened by dynamic core assembly 3, valve body 1 upper cavity pressure is declined rapidly, pressure reduction is formed between main valve upper and lower cavity, the pressure difference of medium is relied on to promote diaphragm 5, main valve plug 2 move, valve open, now flowing medium enters valve body 1 after filter screen 16 impurity screening, is flowed out by outlet; When pilot hole 10 is closed by dynamic core assembly 3, flowing medium, rapidly from diaphragm 5 aperture 7, enters valve body 1 epicoele, makes valve body 1 upper and lower cavity pressure equal, dynamic core assembly 3 and main valve plug 2 under the effect of Returnning spring 12, throttle down.
Above embodiment has just set forth basic principle of the present invention and characteristic; the present invention does not limit by above-mentioned example; without departing from the spirit and scope of the present invention, the present invention also has various change and change, and these changes and change all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (5)
1. a pilot type diaphragm electromagnetic switch valve, it comprises valve body, main valve plug, dynamic core assembly, plunger tube, diaphragm and coil assembly, the two ends of described valve body are provided with the liquid entering hole and liquid outlet that are connected, described main valve plug is arranged on described valve body by valve gap, the center of described main valve plug offers pilot hole, and described main valve plug is provided with for cut off into, the diaphragm of liquid outlet, described dynamic core assembly is arranged at the top of described main valve plug, described plunger tube is placed on outside described dynamic core assembly, described coil assembly is arranged at described plunger tube outward also with nut check, the Returnning spring for dynamic core assembly is provided with between described dynamic core assembly and described plunger tube, it is characterized in that, the position of the corresponding described pilot hole in bottom surface of described dynamic core assembly offers holding cavity, pilot hole black box is provided with in described holding cavity, described liquid entering hole place is provided with filter screen.
2. pilot type diaphragm electromagnetic switch valve according to claim 1, is characterized in that, described pilot hole black box comprises and is arranged at Packing spring in described holding cavity and pilot hole sealing gasket from inside to outside.
3. pilot type diaphragm electromagnetic switch valve according to claim 1 and 2, is characterized in that, is provided with seal ring between described valve body and described valve gap and between described valve gap and described plunger tube.
4. pilot type diaphragm electromagnetic switch valve according to claim 1, is characterized in that, described filter screen is the long cone structure of one end open, and its opening end coordinates the internal diameter of liquid entering hole to arrange, and the opening end of described filter screen is arranged in liquid entering hole by back-up ring.
5. the pilot type diaphragm electromagnetic switch valve according to claim 1 or 4, is characterized in that, described filter screen is made up of stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510218683.2A CN104819334B (en) | 2015-04-30 | 2015-04-30 | A kind of pilot type diaphragm electromagnetic switch valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510218683.2A CN104819334B (en) | 2015-04-30 | 2015-04-30 | A kind of pilot type diaphragm electromagnetic switch valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104819334A true CN104819334A (en) | 2015-08-05 |
| CN104819334B CN104819334B (en) | 2018-01-05 |
Family
ID=53729730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510218683.2A Active CN104819334B (en) | 2015-04-30 | 2015-04-30 | A kind of pilot type diaphragm electromagnetic switch valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104819334B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006305A (en) * | 2018-01-18 | 2018-05-08 | 宁波佳音机电科技股份有限公司 | Duplex solenoid valve |
| CN108757617A (en) * | 2018-07-26 | 2018-11-06 | 无锡市华科力士水液压有限公司 | A kind of pilot type electromagnetic switch valve |
| CN108859651A (en) * | 2017-05-09 | 2018-11-23 | 郑州宇通客车股份有限公司 | Hydraulic suspension system, hydraulic elements and vehicle |
| CN111043321A (en) * | 2019-12-20 | 2020-04-21 | 隆尧县正蝶阀门有限公司 | Pilot-operated electromagnetic valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08270827A (en) * | 1995-03-29 | 1996-10-15 | Ckd Corp | Pilot kick type solenoid valve |
| CN201221615Y (en) * | 2008-07-10 | 2009-04-15 | 江门市汉宇电器有限公司 | Household electrical appliance inlet electromagnetic valve |
| CN201344278Y (en) * | 2009-03-10 | 2009-11-11 | 蒋可贞 | Diaphragm type solenoid valve with large flow capacity |
| CN202266694U (en) * | 2011-08-29 | 2012-06-06 | 宁波开灵气动元件制造有限公司 | Large-caliber normally-open direct-acting electromagnetic valve |
| CN202432077U (en) * | 2012-02-02 | 2012-09-12 | 嵊州市惠科自控元件有限公司 | Air-conditioning electromagnetic valve |
| CN204083445U (en) * | 2014-09-03 | 2015-01-07 | 宁波开灵气动元件制造有限公司 | Large discharge direct-acting type often drives solenoid valve used for air compressor |
| CN204729726U (en) * | 2015-04-30 | 2015-10-28 | 华中科技大学无锡研究院 | A kind of pilot type diaphragm electromagnetic switch valve |
-
2015
- 2015-04-30 CN CN201510218683.2A patent/CN104819334B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08270827A (en) * | 1995-03-29 | 1996-10-15 | Ckd Corp | Pilot kick type solenoid valve |
| CN201221615Y (en) * | 2008-07-10 | 2009-04-15 | 江门市汉宇电器有限公司 | Household electrical appliance inlet electromagnetic valve |
| CN201344278Y (en) * | 2009-03-10 | 2009-11-11 | 蒋可贞 | Diaphragm type solenoid valve with large flow capacity |
| CN202266694U (en) * | 2011-08-29 | 2012-06-06 | 宁波开灵气动元件制造有限公司 | Large-caliber normally-open direct-acting electromagnetic valve |
| CN202432077U (en) * | 2012-02-02 | 2012-09-12 | 嵊州市惠科自控元件有限公司 | Air-conditioning electromagnetic valve |
| CN204083445U (en) * | 2014-09-03 | 2015-01-07 | 宁波开灵气动元件制造有限公司 | Large discharge direct-acting type often drives solenoid valve used for air compressor |
| CN204729726U (en) * | 2015-04-30 | 2015-10-28 | 华中科技大学无锡研究院 | A kind of pilot type diaphragm electromagnetic switch valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108859651A (en) * | 2017-05-09 | 2018-11-23 | 郑州宇通客车股份有限公司 | Hydraulic suspension system, hydraulic elements and vehicle |
| CN108006305A (en) * | 2018-01-18 | 2018-05-08 | 宁波佳音机电科技股份有限公司 | Duplex solenoid valve |
| CN108757617A (en) * | 2018-07-26 | 2018-11-06 | 无锡市华科力士水液压有限公司 | A kind of pilot type electromagnetic switch valve |
| CN111043321A (en) * | 2019-12-20 | 2020-04-21 | 隆尧县正蝶阀门有限公司 | Pilot-operated electromagnetic valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104819334B (en) | 2018-01-05 |
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