CN203023608U - Electromagnetic valve for engine brake - Google Patents
Electromagnetic valve for engine brake Download PDFInfo
- Publication number
- CN203023608U CN203023608U CN 201320000540 CN201320000540U CN203023608U CN 203023608 U CN203023608 U CN 203023608U CN 201320000540 CN201320000540 CN 201320000540 CN 201320000540 U CN201320000540 U CN 201320000540U CN 203023608 U CN203023608 U CN 203023608U
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- CN
- China
- Prior art keywords
- valve body
- valve
- spool
- pole
- coil
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- 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 - Fee Related
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- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses an electromagnetic valve for an engine brake, which comprises a valve seat and a valve body connected with the valve seat through threads. An oil inlet and an oil outlet are arranged at the lower end of the valve seat; a valve core and an electromagnetic control mechanism are arranged in the valve body; the electromagnetic control mechanism comprises a coil embedded in the inner hole of the valve body; a copper tube with the front end penetrating through the center hole of the valve body and being in interference fit with the center hole of the valve body is arranged in the inner hole of the coil; a pole rod is assembled at the upper part of the inner hole of the copper tube; the pole rod is positioned at a large end outside the copper tube and is in interference fit with the valve body; a rear cover used for compressing the pole rod is arranged at the upper end of the valve body; a metal piece of the rear cover is welded with one end of the coil; the other end of the coil is welded with the valve body; the valve core is assembled at the lower part of the inner hole of the copper tube; and a reset spring is arranged between the top end of the valve core and the bottom end of the pole rod. The electromagnetic valve has the advantages of simple structure, reliability in operation and long service life.
Description
Technical field
The utility model relates to valve technology field, particularly a kind of solenoid valve.
Background technique
Solenoid valve is arranged in pipeline usually, is to utilize electromagnetic effect to control the product of pipeline conducting, is widely used in the direction of control media in control system, the parameters such as flow.Solenoid valve is to control with electromagnetic effect, and main control mode is Control.Be applied at present the solenoid valve in engine brake, mainly comprise valve body, spool, valve rod and be located at being used on valve body controlling the Electromagnetic Control structure that valve rod moves up and down, the lower end of this valve body has been provided with oil inlet hole and oil outlet.Valve rod is with movable valve plug to move up and down under the control of electromagnetic structure, thereby controls the folding of oil inlet hole and oil outlet.Spool and valve rod are connected in this structure, and when the Electromagnetic Control structure was just connecing power supply, valve rod moved to the top of valve body, and the band movable valve plug moves together, thereby oil inlet hole and oil outlet are communicated with; When Electromagnetic Control structure reversal connection power supply, valve rod moves down along valve body, and spool also and then moves down, thus the connection of blocking-up oil inlet hole and oil outlet.Although the solenoid valve of this structure is used in engine brake, the folding of controlling oil inlet hole and oil outlet all needs the Electromagnetic Control repeated structure to switch connection between the both positive and negative polarity of power supply, and operation is comparatively complicated; And spool and valve rod be fixed together, if inaccurate to the Electromagnetic Control structure control, will cause spool and valve rod joint fracture, causes solenoid valve to lose efficacy.
Summary of the invention
The utility model for the deficiencies in the prior art provide a kind of simple to operate, reliable in action, working life long be applied to solenoid valve in engine brake.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
the solenoid valve that is used for engine brake, comprise valve seat and the valve body that is threaded with valve seat, the lower end of described valve seat is provided with oil inlet hole and oil outlet, be provided with for the spool of controlling oil inlet hole and oil outlet folding in valve body and be used for controlling the Electromagnetic Control mechanism that spool moves up and down, described Electromagnetic Control mechanism comprises the coil that is inlaid in valve body inner bore, be provided with in the coil endoporus front end pass the valve body center hole and with the copper pipe of valve body center hole interference fit, the top of copper pipe endoporus is equipped with pole, described pole is positioned at large end and the valve body interference fit of copper pipe outside, the valve body upper end is provided with for the bonnet that compresses pole, one end welding of the metalwork of described bonnet and coil, the other end of coil and valve body welding, described spool is assemblied in the bottom of copper pipe endoporus, be provided with Returnning spring between the top of spool and the bottom of pole.
Improvement of the present utility model is: the bottom cone match of the top of described spool and pole, the center of spool is provided with the slotted eye that is fixedly connected with Returnning spring.
Improvement of the present utility model is: be arranged with the twice circular groove in parallel on described pole and circumferential surface that copper pipe contacts, be embedded with seal ring one in circular groove.
Improvement of the present utility model is: be provided with the seal ring two for seal valve seat and valve body on the excircle of described copper pipe lower end.
Improvement of the present utility model is: the bottom that described spool contacts with oil outlet is coated with rubber layer.
Improvement of the present utility model also is: the top that described spool lower end is positioned at rubber layer is provided with the draining hole.
Owing to having adopted above technological scheme, the obtained technological progress of the utility model is:
After coil electricity of the present utility model, the conical surface of pole lower end produces the suction-combining force to spool, the stressed backward upper movement of spool, and Compress Spring compression simultaneously is communicated with oil inlet hole and oil outlet; After coil blackout, spool moves downward under the effect of spring force, fit with oil outlet, and the connection of blocking-up oil inlet hole and oil outlet.Because the solenoid valve of this structure only need be in the situation that energising can realize that oil inlet hole and oil outlet are communicated with, the outage back valve core resets, automatically realize the connection of blocking-up oil inlet hole and oil outlet, and the valve core structure of this solenoid valve is simple, precise control only needs to move up and down in copper pipe, therefore, this solenoid operated is simple, and reliability is high.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Wherein: 1. valve seat, 2. valve body, 3. coil, 4. bonnet, 5. pole, 6. seal ring one, 7. Returnning spring, 8. spool, 9. seal ring two, 10. oil inlet hole, 11. oil outlets, 12. draining holes, 13. copper pipes, 14. rubber layers.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.
A kind of solenoid valve for engine brake, as shown in Figure 1.Comprise valve seat 1 and valve body 2, valve body 2 is threaded with valve seat.The lower end of valve seat is provided with oil inlet hole 10 and oil outlet 11, is provided with spool 8 and Electromagnetic Control mechanism in valve body, and spool 8 is used for controlling the folding of oil inlet hole 10 and oil outlet 11 under the control of Electromagnetic Control mechanism.
Electromagnetic Control mechanism comprises coil 3, copper pipe 13 and pole 5, and coil 3 is inlaid in the endoporus of valve body 2, is provided with copper pipe 13 in coil 3 endoporus, and the front end of copper pipe 13 passes valve body 2 center holes, and with valve body center hole interference fit.Pole 5 is assemblied in the top of copper pipe 13 endoporus, and pole 5 is positioned at large end and valve body 2 interference fit of copper pipe 13 outsides; Be arranged with the twice circular groove in parallel on pole 5 and circumferential surface that copper pipe 13 contacts, be embedded with seal ring 1 in circular groove.The valve body upper end is provided with bonnet 4, and bonnet 4 is used for compressing pole, and valve body closes up bonnet 4 is fixing by turning over riveting tool.One end welding of the metalwork of bonnet 4 and coil 3, the other end of coil 3 and valve body 2 weld, and consist of the loop of Electromagnetic Control mechanism.
Spool 8 is assemblied in the bottom of copper pipe 13 endoporus, the bottom cone match of the top of spool 8 and pole 5, and the center of spool 8 is provided with slotted eye, and the bottom of slotted eye is fixedly connected with Returnning spring 7, and the other end of Returnning spring 7 is fixedly connected on the bottom of pole.In the cold situation of coil, the position, lower end surface of the upper-end surface of spool and pole is corresponding, and Returnning spring is in normal state; When coil gets when electric, the cone basal surface position of the bottom of pole and spool is corresponding, and Returnning spring is in compressive state.
The bottom that spool 8 contacts with oil outlet 11 is coated with rubber layer 14.The top that spool 8 lower ends are positioned at rubber layer 14 is provided with draining hole 12.
Be provided with seal ring 29 on the excircle of copper pipe 13 lower ends, be used for realizing sealing after valve seat 1 and valve body 2 compressions.
Working principle of the present utility model is as described below.
During the utility model work, after coil 3 energisings, produce electromagnetic force pole 5 suction movable valve plugs 8 are moved upward, until spool 8 is pulled together with pole 5, this moment, spring 7 was compressed, and the rubber layer of spool 8 front ends separates with oil outlet 11, thereby realizes the connection of oil inlet hole 10 and oil outlet 11.After coil 3 outages, electromagnetic force disappears, and compressed spring 7 separates spool 8 by elastic force with pole 5, and the rubber of spool 8 front ends and oil outlet 11 compress, and oil inlet hole 10 is blocked with oil outlet 11.
Claims (6)
1. solenoid valve that is used for engine brake, the valve body (2) that comprises valve seat (1) and be threaded with valve seat, the lower end of described valve seat is provided with oil inlet hole (10) and oil outlet (11), be provided with for the spool (8) of controlling oil inlet hole (10) and oil outlet (11) folding in valve body and be used for controlling the Electromagnetic Control mechanism that spool (8) moves up and down, it is characterized in that: described Electromagnetic Control mechanism comprises the coil (3) that is inlaid in valve body inner bore, be provided with in coil (3) endoporus front end pass valve body (2) center hole and with the copper pipe (13) of valve body center hole interference fit, the top of copper pipe (13) endoporus is equipped with pole (5), described pole (5) is positioned at copper pipe (13) outside large end and valve body (2) interference fit, the valve body upper end is provided with for the bonnet (4) that compresses pole (5), one end welding of the metalwork of described bonnet (4) and coil (3), the other end of coil (3) and valve body (2) welding, described spool (8) is assemblied in the bottom of copper pipe (13) endoporus, be provided with Returnning spring (7) between the bottom of the top of spool (8) and pole (5).
2. the solenoid valve for engine brake according to claim 1, it is characterized in that: the bottom cone match of the top of described spool (8) and pole (5), the center of spool (8) is provided with the slotted eye that is fixedly connected with Returnning spring (7).
3. the solenoid valve for engine brake according to claim 1 is characterized in that: be arranged with the twice circular groove in parallel on described pole (5) and circumferential surface that copper pipe (13) contacts, be embedded with seal ring one (6) in circular groove.
4. the solenoid valve for engine brake according to claim 1 is characterized in that: be provided with the seal ring two (9) for seal valve seat (1) and valve body (2) on the excircle of described copper pipe (13) lower end.
5. the solenoid valve for engine brake according to claim 1, it is characterized in that: the bottom that described spool (8) contacts with oil outlet (11) is coated with rubber layer (14).
6. the solenoid valve for engine brake according to claim 5 is characterized in that: the top that described spool (8) lower end is positioned at rubber layer (14) is provided with draining hole (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320000540 CN203023608U (en) | 2013-01-03 | 2013-01-03 | Electromagnetic valve for engine brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320000540 CN203023608U (en) | 2013-01-03 | 2013-01-03 | Electromagnetic valve for engine brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023608U true CN203023608U (en) | 2013-06-26 |
Family
ID=48647594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320000540 Expired - Fee Related CN203023608U (en) | 2013-01-03 | 2013-01-03 | Electromagnetic valve for engine brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203023608U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197078A (en) * | 2014-08-27 | 2014-12-10 | 安徽环名精控有限公司 | Electromagnetic control valve |
| CN107339490A (en) * | 2017-08-17 | 2017-11-10 | 无锡威孚高科技集团股份有限公司 | One kind stops solenoid |
-
2013
- 2013-01-03 CN CN 201320000540 patent/CN203023608U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197078A (en) * | 2014-08-27 | 2014-12-10 | 安徽环名精控有限公司 | Electromagnetic control valve |
| CN107339490A (en) * | 2017-08-17 | 2017-11-10 | 无锡威孚高科技集团股份有限公司 | One kind stops solenoid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20160103 |