CN201818877U - Gas solenoid valve - Google Patents
Gas solenoid valve Download PDFInfo
- Publication number
- CN201818877U CN201818877U CN2010205651858U CN201020565185U CN201818877U CN 201818877 U CN201818877 U CN 201818877U CN 2010205651858 U CN2010205651858 U CN 2010205651858U CN 201020565185 U CN201020565185 U CN 201020565185U CN 201818877 U CN201818877 U CN 201818877U
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- CN
- China
- Prior art keywords
- valve body
- spool
- valve
- solenoid valve
- gas
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a gas solenoid valve which comprises a valve body and a valve core, wherein, the valve core is axially arranged in the inner cavity of the valve body in a sliding manner along the valve body; the front end of the valve body is equipped with a gas inlet pipeline, and the rear end of the valve body is detachably and fixedly connected with a gas outlet joint; the gas outlet joint is equipped with a gas outlet pipeline; a gas inlet of the gas outlet pipeline is arranged on a projection which extends outwards on the front end surface of the gas outlet joint; the valve core is equipped with a gas guide pipeline for communicating the gas inlet pipeline with the gas outlet pipeline; the rear end of the valve core is equipped with a sealing element for plugging the raised gas inlet; a mounting hole which axially extends along the valve body is arranged in the front of the valve core inside the valve body, and the mounting hole is internally provided with a compression spring for pushing the valve core to close the solenoid valve; the rear end surface of the compression spring props against the front end surface of the valve core; an electromagnetic coil which is used for generating an electromagnetic force so as to push the valve core to open the solenoid valve is wound at the position on the external surface of the valve body corresponding to the valve core; and a magnetic separation ring is arranged between the electromagnetic coil and the valve body.
Description
Technical field
The utility model 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.
The model utility content
The purpose of this utility model provide a kind of simple in structure, profile is less and the reliable sealing gas solenoid valve.
For achieving the above object, the utility model adopts following technological scheme: gas solenoid valve, comprise valve body and endwisely slip and be assemblied in spool in the body cavity along valve body, 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, the suction port of outlet pipe is arranged on the air outlet adapter front-end face on the outward extending projection, 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 projection, when on the suction port of Sealing shutoff in projection, 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, offer in the place ahead of spool along the axially extended mounting hole of valve body at valve inner, 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 on the front-end face of spool, 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.
Sealing on the described 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.
Described valve body is integrated, be provided with along the axially extended annular groove that is used to twine electromagnetic coil of valve body with spool opposite position place on the outer surface of valve body, 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 described 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 outer circumferential face of described spool front portion 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 described valve body is provided with filter screen.
Be installed with the shell of encirclement electromagnetic coil on the described valve body in the outside of electromagnetic coil.
Rear end in valve body between described valve body and the air outlet adapter is provided with seal ring.
When using gas solenoid valve of the present utility model, 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, realize 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, not stressed grade of spool front end and back end at this moment, and direction is opposite, 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 projection, 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 is overcoming pressure spring and pressurized gas opening to promote spool with joint efforts the spool active force, air inlet open on the air outlet adapter front end projection, 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 by electromagnetic coil spool is produced in the utility model makes the valve element position state carry out fast and reliable control, thereby realizes high-pressure gas circuit is controlled.Gas solenoid valve in the utility model 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 projection of air outlet adapter, the spool front end is stressed bigger than spool rear end, gas pressure intensity is high more, and the sealing of whole gas solenoid valve is just good more.
Description of drawings
Fig. 1 is a kind of embodiment's of the utility model a structural representation.
Embodiment
Shown in Figure 1; gas solenoid valve; comprise the valve body 3 of integral structure and endwisely slip and be assemblied in spool 6 in the body cavity along valve body; 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 by 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 protruding 14; wherein the suction port of outlet pipe 12 just is arranged on the projection 14; 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 projection in the rear end of spool 6; sealing part 4 is installed on spool 6 ear end faces in the outward extending cavity; the open rearward end place of this cavity is reducing; with Sealing 4 and spool 6 by the rolling beading technology structure that reliably links into an integrated entity; when Sealing 4 shutoff are on the suction port of projection 14; 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; offer along the axially extended mounting hole of valve body in the place ahead of spool 6 in valve body 3 inside; the outer circumferential face of spool 6 front portions cooperates 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; when the gas circuit conducting; pressurized gas are through the air inlet pipeline 10 of valve body 3 front ends; air guide pipeline 11; body cavity; enter 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; 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 with spool 6 corresponding positions; in annular groove, be wound with and be used to produce electromagnetic force and move forward the electromagnetic coil 5 of opening solenoid valve to promote spool; on valve body, offer along valve body and extend axially the filling annular groove with the bottom land of annular groove; being provided with magnetism resistent ring 7 in filling annular groove between electromagnetic coil and valve body, 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 by 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, be provided with the ring platform with the step trough corresponding section on the madial wall of the endoporus of valve rear end, 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 by 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 by 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 in the utility model not exclusively cuts off valve body, under the prerequisite of shooting the mechanical strength that influences valve body dead, can improve the Magnetic flux density of working magnetic gap again under the less situation of its physical dimension like this.
Gas solenoid valve in the utility model 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 projection 14 of air outlet adapter 1 front-end face, finish sealing to gas circuit, when charging into pressurized gas in the air inlet pipeline 10 of valve body 3 front ends, pressurized gas are through air inlet pipeline 10, air guide pipeline 11 on the spool 6 enters into body cavity, because this moment, the valve rear end roof pressure was on the projection on the air outlet adapter front-end face, 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, pressurized gas will be oppressed spool 6 and be moved backward, continue roof pressure on projection 14 with the sealing outlet pipe, the high pressure sealing state that keeps solenoid valve, air pressure in the gas solenoid valve in the utility model is high more, and its sealing is good more.When needs are opened solenoid valve with the conducting gas circuit, by the logical direct current of lead phase electromagnetic coil, spool 6 moves forward after pressure spring and pressurized gas are made a concerted effort to spool overcoming under the electromagnetic force effect, projection 14 on the front-end face of the ear end face disengaging air outlet adapter of spool 6, outlet pipe 12 conductings this moment, outlet pipe 12 conductings of pressurized gas on air outlet adapter 1, because when spool breaks away from air outlet adapter, the rear and front end face lifting surface area of spool becomes 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 spool in the body cavity along valve body, 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, the suction port of outlet pipe is arranged on the air outlet adapter front-end face on the outward extending projection, 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 projection, when on the suction port of Sealing shutoff in projection, 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, offer in the place ahead of spool along the axially extended mounting hole of valve body at valve inner, 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 on the front-end face of spool, 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 described 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: described valve body is integrated, be provided with along the axially extended annular groove that is used to twine electromagnetic coil of valve body with spool opposite position place on the outer surface of valve body, 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.
4. gas solenoid valve according to claim 1 and 2, it is characterized in that: air inlet pipeline on the described 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 outer circumferential face of described spool front portion 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 described valve body is provided with filter screen.
7. gas solenoid valve according to claim 1 and 2 is characterized in that: the shell that is installed with the encirclement electromagnetic coil on the described 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 described valve body and the air outlet adapter is provided with seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205651858U CN201818877U (en) | 2010-10-18 | 2010-10-18 | Gas solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205651858U CN201818877U (en) | 2010-10-18 | 2010-10-18 | Gas solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818877U true CN201818877U (en) | 2011-05-04 |
Family
ID=43916829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205651858U Expired - Lifetime CN201818877U (en) | 2010-10-18 | 2010-10-18 | Gas solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201818877U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968119A (en) * | 2010-10-18 | 2011-02-09 | 凯迈（洛阳）气源有限公司 | Gas electromagnetic valve |
| CN102927292A (en) * | 2012-11-01 | 2013-02-13 | 浙江理工大学 | Solenoid valve and weft yarn tension device |
| CN106949291A (en) * | 2017-05-10 | 2017-07-14 | 四川柯世达汽车制动系统集团有限公司 | Water proof type electromagnetism blowoff valve |
-
2010
- 2010-10-18 CN CN2010205651858U patent/CN201818877U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968119A (en) * | 2010-10-18 | 2011-02-09 | 凯迈（洛阳）气源有限公司 | Gas electromagnetic valve |
| CN101968119B (en) * | 2010-10-18 | 2012-08-29 | 凯迈（洛阳）气源有限公司 | Gas electromagnetic valve |
| CN102927292A (en) * | 2012-11-01 | 2013-02-13 | 浙江理工大学 | Solenoid valve and weft yarn tension device |
| CN106949291A (en) * | 2017-05-10 | 2017-07-14 | 四川柯世达汽车制动系统集团有限公司 | Water proof type electromagnetism blowoff valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110504 |
|
| CX01 | Expiry of patent term |