CN101968119B - Gas electromagnetic valve - Google Patents
Gas electromagnetic valve Download PDFInfo
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- CN101968119B CN101968119B CN201010510255A CN201010510255A CN101968119B CN 101968119 B CN101968119 B CN 101968119B CN 201010510255 A CN201010510255 A CN 201010510255A CN 201010510255 A CN201010510255 A CN 201010510255A CN 101968119 B CN101968119 B CN 101968119B
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Abstract
The invention discloses a gas electromagnetic valve, which comprises a valve body and a valve element, wherein the valve element is arranged in a cavity of the valve body in a way of axially sliding along the valve body; the front end of the valve body is provided with an air inlet pipeline, while a rear end is detachably and fixedly connected with an air outlet joint which is provided with an air outlet pipeline; an air inlet of the air outlet pipeline is arranged on an outwards-extended bump on the front end face of the air outlet joint; the valve element is provided with an air guide pipeline used for communicating the air inlet pipeline and the air-outlet pipeline; a sealing element used for sealing the air inlet on the bump is arranged at the rear end of the valve element; a mounting hole axially extended along the valve body is reserved in front of the valve element in the valve body; a compression spring used for driving the valve element to close the electromagnetic valve is arranged in the mounting hole; the rear end face of the compression spring is pressed against the front end face of the valve element; a position, corresponding to the valve element, on the outer surface of the valve body is wound with an electromagnetic coil used for generating an electromagnetic force to drive the valve element to open the electromagnetic valve; and a magnetic isolation ring is arranged between the electromagnetic coil and the valve body on the valve body.
Description
Technical field
The invention belongs to the pneumatic control field, particularly a kind of gas solenoid valve.
Background technique
Along with the continuous development of science and technology, the application area of high-pressure air source system and field more and more widely just propose requirements at the higher level to the performance of high pressure air original system.And along with high-pressure air source system works pressure improves constantly; The working pressure of the high-pressure air source system that has has reached 70MPa; Gas solenoid valve is as the important control class component in the high-pressure air source system; Its working pressure requires also to improve constantly thereupon, and volume weight also develops to miniaturization, light direction.The basic dependence on import of gas solenoid valve that is higher than at present 35MPa on the Domestic market, and abroad this series products is also less, and the overall volume of this type of solenoid valve is bigger, weight is heavier, is difficult to satisfy on the market requirement to miniaturization, light.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, profile is less and the reliable sealing gas solenoid valve.
For realizing above-mentioned purpose; The present invention adopts following technological scheme: a kind of gas solenoid valve, comprise valve body and endwisely slip being assemblied in the spool in the body cavity along valve body, and be provided with air inlet pipeline at the valve body front end; The removable air outlet adapter that is fixed with of valve rear end; Air outlet adapter is provided with outlet pipe, and the suction port of outlet pipe is arranged on the air outlet adapter front-end face on the outward extending convexity, and spool is provided with the air guide pipeline that is used to be communicated with air inlet pipeline and outlet pipe; The rear end of spool is provided with the Sealing that is used for the suction port on the shutoff convexity; When on the suction port of Sealing shutoff in convexity, the spool rear end, offers in the place ahead of spool along the axially extended mounting hole of valve body at valve inner less than the lifting surface area of spool front end corresponding to gas corresponding to the lifting surface area of gas; Be equipped with in the mounting hole and be used to promote spool to close the pressure spring of solenoid valve; The ear end face roof pressure of pressure spring is wound with spool opposite position place on the outer surface of valve body and is used to produce electromagnetic force and opens the electromagnetic coil of solenoid valve to promote spool on the front-end face of spool, between electromagnetic coil and valve body, is provided with magnetism resistent ring corresponding to the valve element position place on the valve body outer circumferential face.
Sealing on the said spool is installed on the spool ear end face in the outward extending cavity, and the open rearward end place of this cavity is reducing.
Said valve body is integrated; On the outer surface of valve body, be provided with along the axially extended annular groove that is used to twine electromagnetic coil of valve body with spool opposite position place, the bottom land in annular groove on valve body offers in the magnetism resistent ring corresponding position along the axially extended filling annular groove that is used to place magnetism resistent ring of valve body.
Air inlet pipeline on the said valve body and the outlet pipe on the air outlet adapter all extend axially along valve body; And air inlet pipeline, outlet pipe and mounting hole are all coaxial with valve body; The front end of mounting hole is communicated with the air outlet of air inlet pipeline, and the suction port of air guide pipeline is communicated with on the rear end of mounting hole and the spool.
The anterior outer circumferential face of said spool cooperates with bore seal, the outer circumferential face of spool rear end and inner chamber Spielpassung, and the air outlet of the air guide pipeline of spool is communicated with gap between spool and the body cavity.
The suction port place of the air inlet pipeline of said valve body is provided with filter screen.
Be installed with the shell that surrounds electromagnetic coil on the said valve body in the outside of electromagnetic coil.
Rear end in valve body between said valve body and the air outlet adapter is provided with seal ring.
When using gas solenoid valve of the present invention, when in the air inlet pipeline of valve body, not ventilating, pressure spring promotes spool and endwisely slips along valve body; Leave working magnetic gap between corresponding of the front end of spool and body cavity front end, the Sealing of spool rear end is used to block the suction port of outlet pipe on the air outlet adapter, realizes sealing; When pressurized gas enter into body cavity along the air guide pipeline of air inlet pipeline on spool; The spool rear end corresponding to the lifting surface area of gas less than the lifting surface area of spool front end corresponding to gas, this moment the spool front end and back end stressed the grade, and in the opposite direction; Because front end is stressed stressed greater than the rear end; Spool will further be pressed on the air outlet adapter, and Sealing continues the suction port on the shutoff convexity, guarantee the reliable sealing of solenoid valve when highpressure.When needs are opened solenoid valve; Start electromagnetic coil; Electromagnetic coil applies electromagnetic force to spool; The suffered electromagnetic force of spool overcome pressure spring and pressurized gas to the spool active force make a concerted effort open to promote spool, the air inlet open on the air outlet adapter front end convexity, pressurized gas are along the outlet pipe conducting on the air outlet adapter; This moment, the lifting surface area of spool front end and back end equated, the pressure that electromagnetic coil only need overcome pressure spring to the electromagnetic force that spool applied can guarantee the normally of gas circuit.The electromagnetic force that through electromagnetic coil spool is produced among the present invention makes the valve element position state carry out fast and reliable control, thereby realizes high-pressure gas circuit is controlled.Gas solenoid valve among the present invention in use; When being in the gas circuit closed state; Thereby, the spool rear end causes the lifting surface area of the lifting surface area of spool rear end less than the spool front end because being close on the convexity of air outlet adapter; The spool front end is stressed bigger than spool rear end, and gas pressure intensity is high more, and the sealing of whole gas solenoid valve is just good more.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the present invention.
Embodiment
Shown in Figure 1, a kind of gas solenoid valve comprises the valve body 3 of integral structure and endwisely slips along valve body being assemblied in the spool 6 in the body cavity; Be provided with along valve body at valve body 3 front ends and extend axially air inlet pipeline 10, be provided with the filter screen 13 that is used for impurity screening at the suction port place of air inlet pipeline 10, valve body 3 rear ends are through the removable air outlet adapter 1 that is fixed with of screw thread; Air outlet adapter 1 is provided with along valve body 3 axially extended outlet pipes 12; On the front-end face of air outlet adapter 1, be provided with outward extending protrudingly 14, wherein the suction port of outlet pipe 12 just is arranged on protruding 14, and spool 6 is provided with the air guide pipeline 11 that is used to be communicated with air inlet pipeline 10 and outlet pipe 12; Be provided with the Sealing 4 that is used for the suction port on the shutoff convexity in the rear end of spool 6; Sealing part 4 is installed on spool 6 ear end faces in the outward extending cavity, and the open rearward end place of this cavity is reducing, with Sealing 4 and spool 6 through the rolling beading technology structure that reliably links into an integrated entity; When Sealing 4 shutoff are on protruding 14 suction port; The spool rear end, offers along the axially extended mounting hole of valve body in the place ahead of spool 6 in valve body 3 inside less than the lifting surface area of spool front end corresponding to gas corresponding to the lifting surface area of gas, and spool 6 anterior outer circumferential faces cooperate with valve body 3 bore seal; The outer circumferential face of spool 6 rear ends and valve body 3 inner chamber Spielpassung; The air outlet of the air guide pipeline 11 of spool 6 is communicated with gap between spool and the body cavity, and when the gas circuit conducting, pressurized gas are through air inlet pipeline 10, air guide pipeline 11, the body cavity of valve body 3 front ends; Get at last in the outlet pipe 12 on the air outlet adapter 1; Air inlet pipeline in the present embodiment, outlet pipe and mounting hole all with the valve body coaxial design, the front end of mounting hole is communicated with the air outlet of air inlet pipeline, the suction port of air guide pipeline is communicated with on the rear end of mounting hole and the spool; Be equipped with in the mounting hole and be used to promote the pressure spring 8 of spool to close solenoid valve; Pressure spring 8 front ends top is contained in the mounting hole, and the ear end face roof pressure of pressure spring 8 is on the front-end face of spool 6, under the effect of pressure spring 8; Leave working magnetic gap δ between corresponding of the front end of the front end of spool 6 and valve body 3 inner chambers; On the outer surface of valve body 3, be provided with along the axially extended annular groove of valve body, in annular groove, be wound with and be used to produce electromagnetic force promoting the electromagnetic coil 5 that spool moves forward and opens solenoid valve, on valve body, offer along valve body and extend axially the filling annular groove with the bottom land of annular groove with spool 6 corresponding positions; In filling annular groove, between electromagnetic coil and valve body, being provided with magnetism resistent ring 7, is to be installed with to be used to protect the shell 9 that surrounds electromagnetic coil in the outside of electromagnetic coil on valve body.
Magnetism resistent ring in the foregoing description is arranged on the outer circumferential face of valve body; Though the filling annular groove is set on the outer circumferential face of valve body, magnetism resistent ring does not cut off valve body fully, and valve body still is integrated; The intensity of valve body is higher like this, and the gas tightness of itself is improved.
Because air outlet adapter 1 is through removable being connected of screw thread and valve body 3 rear ends; In order to improve the overall tightness of gas solenoid valve; Between valve body 3 and air outlet adapter 1, be provided with seal ring 2 in the rear end of valve body; The outer circumferential face of air outlet adapter rear end is provided with step trough, on the madial wall of the endoporus of valve rear end, is provided with the ring platform with the step trough corresponding section, and step trough and Huan Tai constitute the seal groove that is used to place seal ring.
Lead and the external dc power conducting of electromagnetic coil 5 through passing valve body, when the DC electrical source conducting, electromagnetic coil produces induction field, and spool moves forward under the electromagnetic force effect to open solenoid valve, guarantees the gas circuit conducting.
The optional electrical pure iron of using of valve core material in the foregoing description, it has good magnetic conductivity and higher saturation induction density and lower new word, compares other material and can obtain bigger electromagnetic attraction.
The soft-magnetic stainless steel that valve body then selects for use magnetic property and mechanical strength to take into account realizes that through passivation valve body is antirust, thereby has improved the working pressure and the corrosion-resistant property of valve body.
Magnetism resistent ring 7 between electromagnetic coil 5 and valve body 3 among the present invention not exclusively cuts off valve body, under the prerequisite of shooting the mechanical strength that influences valve body dead, can under the less situation of its physical dimension, improve the Magnetic flux density of working magnetic gap again like this.
Gas solenoid valve among the present invention is at high-pressure gas circuit not during conducting; By pressure spring 8 to spool 6 provide elastic force with Sealing 4 roof pressures of spool 6 rear ends on the convexity 14 of air outlet adapter 1 front-end face, accomplish sealing, when charging into pressurized gas in the air inlet pipeline 10 of valve body 3 front ends to gas circuit; The air guide pipeline 11 of pressurized gas on air inlet pipeline 10, spool 6 enters into body cavity; Because the valve rear end roof pressure is on the convexity on the air outlet adapter front-end face at this moment, the lifting surface area of the ear end face of spool 6 is less than the lifting surface area of the front-end face of spool at this moment, and pressurized gas will be oppressed spool 6 and moved backward; Continue roof pressure on protruding 14 with the sealing outlet pipe; Keep the high pressure sealing state of solenoid valve, the air pressure in the gas solenoid valve among the present invention is high more, and its sealing is good more.When needs are opened solenoid valve with the conducting gas circuit; Through the logical direct current of lead phase electromagnetic coil, spool 6 moves forward the convexity 14 on the front-end face of the ear end face disengaging air outlet adapter of spool 6 overcoming under the electromagnetic force effect after pressure spring and pressurized gas are made a concerted effort to spool; Outlet pipe 12 conductings this moment; Outlet pipe 12 conductings of pressurized gas on air outlet adapter 1 are because when spool broke away from air outlet adapter, the rear and front end face lifting surface area of spool became equal again; So when the solenoid valve normally, electromagnetic force only need overcome the conducting that the elastic force of pressure spring can keep solenoid valve.
Claims (8)
1. gas solenoid valve; It is characterized in that: comprise valve body and endwisely slip being assemblied in the spool in the body cavity, be provided with air inlet pipeline at the valve body front end, the removable air outlet adapter that is fixed with of valve rear end along valve body; Air outlet adapter is provided with outlet pipe; The suction port of outlet pipe is arranged on the air outlet adapter front-end face on the outward extending convexity, and spool is provided with the air guide pipeline that is used to be communicated with air inlet pipeline and outlet pipe, and the rear end of spool is provided with the Sealing that is used for the suction port on the shutoff convexity; When on the suction port of Sealing shutoff in convexity; The spool rear end, offers along the axially extended mounting hole of valve body in the place ahead of spool at valve inner less than the lifting surface area of spool front end corresponding to gas corresponding to the lifting surface area of gas, is equipped with in the mounting hole to be used to promote spool to close the pressure spring of solenoid valve; The ear end face roof pressure of pressure spring is on the front-end face of spool; When not ventilating in the air inlet pipeline of valve body, pressure spring promotes spool and axially slides backward along valve body, leaves working magnetic gap between corresponding of the front end of spool and the front end of body cavity; On the outer surface of valve body, be wound with and be used to produce electromagnetic force and open the electromagnetic coil of solenoid valve, between electromagnetic coil and valve body, be provided with magnetism resistent ring on the valve body outer circumferential face corresponding to the valve element position place to promote spool with spool opposite position place.
2. gas solenoid valve according to claim 1 is characterized in that: the Sealing on the said spool is installed on the spool ear end face in the outward extending cavity, and the open rearward end place of this cavity is reducing.
3. gas solenoid valve according to claim 1 and 2; It is characterized in that: said valve body is integrated; On the outer surface of valve body, be provided with along the axially extended annular groove that is used to twine electromagnetic coil of valve body with spool opposite position place, bottom land and magnetism resistent ring corresponding position in annular groove on valve body offer along the axially extended filling annular groove that is used to place magnetism resistent ring of valve body.
4. gas solenoid valve according to claim 1 and 2; It is characterized in that: air inlet pipeline on the said valve body and the outlet pipe on the air outlet adapter all extend axially along valve body; And air inlet pipeline, outlet pipe and mounting hole are all coaxial with valve body; The front end of mounting hole is communicated with the air outlet of air inlet pipeline, and the suction port of air guide pipeline is communicated with on the rear end of mounting hole and the spool.
5. gas solenoid valve according to claim 1 and 2; It is characterized in that: the anterior outer circumferential face of said spool cooperates with bore seal; The outer circumferential face of spool rear end and inner chamber Spielpassung, the air outlet of the air guide pipeline of spool is communicated with gap between spool and the body cavity.
6. gas solenoid valve according to claim 1 and 2 is characterized in that: the suction port place of the air inlet pipeline of said valve body is provided with filter screen.
7. gas solenoid valve according to claim 1 and 2 is characterized in that: be installed with the shell that surrounds electromagnetic coil on the said valve body in the outside of electromagnetic coil.
8. gas solenoid valve according to claim 1 and 2 is characterized in that: the rear end in valve body between said valve body and the air outlet adapter is provided with seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010510255A CN101968119B (en) | 2010-10-18 | 2010-10-18 | Gas electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010510255A CN101968119B (en) | 2010-10-18 | 2010-10-18 | Gas electromagnetic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101968119A CN101968119A (en) | 2011-02-09 |
| CN101968119B true CN101968119B (en) | 2012-08-29 |
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ID=43547321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010510255A Active CN101968119B (en) | 2010-10-18 | 2010-10-18 | Gas electromagnetic valve |
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| Country | Link |
|---|---|
| CN (1) | CN101968119B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930022B (en) * | 2015-06-24 | 2017-11-28 | 海特克液压有限公司 | A kind of hydraulic transmission with flushing valve |
| CN105650330B (en) * | 2016-03-11 | 2018-08-03 | 凯迈（洛阳）气源有限公司 | A kind of engine and its air inlet electromagnetic valve |
| JP6894667B2 (en) * | 2016-03-28 | 2021-06-30 | ナブテスコ株式会社 | Seal structure, valve and method of manufacturing the seal structure |
| CN107246489B (en) * | 2017-02-09 | 2024-06-25 | 常州中进医疗器材有限公司 | Electromagnetic valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2721999Y (en) * | 2004-05-26 | 2005-08-31 | 洛阳卓航测控设备有限责任公司 | Electromagnetic valve |
| CN201391638Y (en) * | 2009-03-27 | 2010-01-27 | 夏国伟 | Multipath magnetic valve |
| CN101709806A (en) * | 2009-12-24 | 2010-05-19 | 中国航天科技集团公司第六研究院第十一研究所 | Miniature self-locking electromagnetic valve |
| CN201818877U (en) * | 2010-10-18 | 2011-05-04 | 凯迈（洛阳）气源有限公司 | Gas solenoid valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5725576A (en) * | 1980-07-22 | 1982-02-10 | Matsushita Electric Ind Co Ltd | Small type electro-magnetic valve |
-
2010
- 2010-10-18 CN CN201010510255A patent/CN101968119B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2721999Y (en) * | 2004-05-26 | 2005-08-31 | 洛阳卓航测控设备有限责任公司 | Electromagnetic valve |
| CN201391638Y (en) * | 2009-03-27 | 2010-01-27 | 夏国伟 | Multipath magnetic valve |
| CN101709806A (en) * | 2009-12-24 | 2010-05-19 | 中国航天科技集团公司第六研究院第十一研究所 | Miniature self-locking electromagnetic valve |
| CN201818877U (en) * | 2010-10-18 | 2011-05-04 | 凯迈（洛阳）气源有限公司 | Gas solenoid valve |
Non-Patent Citations (1)
| Title |
|---|
| JP昭57-25576A 1982.02.10 |
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| CN101968119A (en) | 2011-02-09 |
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