CN203784004U - Directly-operated type electromagnetic directional valve - Google Patents
Directly-operated type electromagnetic directional valve Download PDFInfo
- Publication number
- CN203784004U CN203784004U CN201420223232.9U CN201420223232U CN203784004U CN 203784004 U CN203784004 U CN 203784004U CN 201420223232 U CN201420223232 U CN 201420223232U CN 203784004 U CN203784004 U CN 203784004U
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- China
- Prior art keywords
- valve body
- valve
- spool
- coil
- type electromagnetic
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- Expired - Fee Related
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- Magnetically Actuated Valves (AREA)
Abstract
The utility model relates to a directly-operated type electromagnetic directional valve which comprises a valve body, a shell arranged on the valve body, a coil and a valve core, wherein the front end of the valve body is provided with a liquid outlet joint, and the rear end of the valve body is provided with a liquid inlet joint; the valve core is arranged in a valve cavity along the axis direction of the valve body; the valve body is provided with a ring groove in the outer surface wound with the coil; a magnetic separation ring is arranged under the coil close to the right side of the valve body; the right end of the valve core is connected with a reset spring, and the other end of the reset spring is connected with the valve body; a sealing end surface is formed by a valve seat and a sealing cushion block; the valve seat is convex outwards and is arranged at the right end of the liquid outlet joint, and the sealing cushion block is convex outwards and is arranged at the left end of the valve core; a filter screen is arranged in a liquid inlet hole of the liquid inlet joint of the valve body. According to the directly-operated type electromagnetic directional valve, the ring groove is formed in the excircle of the valve body, and the magnetic separation ring is arranged, so that the magnetic flux density of a working magnetic gap is increased under the conditions that the mechanical strength of the valve body is not influenced and the structure size is relatively small; the filter screen is arranged in the liquid inlet hole, and impurity particles are effectively prevented from entering the valve body, so that the sealing surface is avoided being damaged by the impurity particles.
Description
Technical field
The utility model relates to a kind of solenoid valve, relates in particular to one by electromagnetic coil is powered up and power-off, thus the direct driving type electromagnetic selector valve of opening and closing liquid chunnel.
Background technique
Solenoid valve, by Electromagnetic Control, is used for controlling the automation foundation element of fluid, belongs to final controlling element.Its working principle is: in solenoid valve, have airtight chamber, have through hole at diverse location, each hole connects different oil pipes, in the middle of chamber, it is piston, two sides is two blocks of electromagnet, which side the magnet coil energising valve body of which face will attracted to, open or close different oil drainage holes by the movement of control valve body, and oil inlet hole is often opened, hydraulic oil will enter different oil exit pipes, then the piston that promotes oil cylinder by oily pressure, piston drives again piston rod, piston rod driving mechanical device.Just control mechanical motion by the current switching of controlling electromagnet like this.
Solenoid valve is divided three classes from working principle: direct action solenoid valve, step direct-acting type electromagnetic valve, guide electromagnetic valve, wherein being most widely used of direct action solenoid valve, in the time of energising, electromagnetic coil produces electromagnetic force mentions closure member from valve seat, valve open; When power-off, electromagnetic force disappears, and spring handle closure member is pressed on valve seat, valve closing.At present, the structure member compactness of the direct driving type electromagnetic selector valve on market, cannot realize the Magnetic flux density that improves working magnetic gap under less dimensional structure, the mangetic core assembly in the fragile solenoid valve of impurity simultaneously existing in fluid.
Model utility content
The utility model, in order to overcome deficiency of the prior art, provides a kind of direct driving type electromagnetic selector valve.
The utility model is to be achieved through the following technical solutions:
A kind of direct driving type electromagnetic selector valve, comprise valve body, be arranged on housing, coil, spool on valve body, the front end of described valve body is provided with fluid joint, rear end is liquid inlet joint, described spool is arranged in valve pocket along the axial direction of valve body, on the outer surface of valve body winding around, offers annular groove, below the coil near valve body right side, is provided with magnetism resistent ring, right-hand member at spool is connected with Returnning spring, and the other end of described Returnning spring is connected on valve body; The valve seat of described fluid joint right-hand member outwardly convex and the seal block of spool left end outwardly convex form seal face; In the inlet opening of the liquid inlet joint of valve body, filter screen is installed.
As optimal technical scheme of the present utility model, on described spool, offer axial bore and radial direction through hole.
As optimal technical scheme of the present utility model, described valve body and fluid joint are by seal washer and Sealing shield ring sealing, seal washer is combined with Sealing shield ring, seal washer provides elastic force, can be in lower formation sealing with no pressure, and can play compensating action to the wearing and tearing of Sealing shield ring, improve its sealing effect.
Its working principle is: in the time that coil is not switched on, under spring-force driven dual, the valve seat planar annular close contact of the seal block end face of spool and fluid joint, because the planar annular area of valve seat is very little, form very circlet shape sealing strip of area with seal block contacting point, sealing band can play good seal action; When inlet opening passes into fluid, when coil is connected rated current, spool overcomes spring force and fluid active force under electromagnetic attraction effect, spool move right with valve body inhale and, displacement distance is working magnetic gap, now the seal block of spool separates with the valve seat of fluid joint, and oil circuit is connected, and fluid is by spool radial direction through hole; In the time of coil blackout, the electromagnetic attraction acting on spool disappears, and spool is moved to the left fast under spring-force driven dual, makes the seal block end face of spool and the valve seat planar annular close contact of fluid joint, and oil circuit is closed.
Compared with prior art, the beneficial effects of the utility model are: the utility model is processed with annular groove on the cylindrical of valve body coiling, and be provided with magnetism resistent ring, can not affect the mechanical strength of valve body and in the less situation of physical dimension, improve the Magnetic flux density of working magnetic gap; By be provided with filter screen in inlet opening, can effectively stop that impurity particle enters valve inner, prevent impurity particle damage sealing surface.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure: 1-valve body; 2-housing; 3-fluid joint; 4-annular groove; 5-coil; 6-magnetism resistent ring; 7-spool; 8-Returnning spring; 9-liquid inlet joint; 10-filter screen; 11-seal washer; 12-Sealing shield ring; 30-valve seat; 70-seal block.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, Fig. 1 is structural representation of the present utility model.
Described a kind of direct driving type electromagnetic selector valve, comprises valve body 1, the material selection soft-magnetic stainless steel of valve body 1, and carry out vacuum annealing, and increasing its mechanical strength, after valve body machining, surface passivating treatment, has anticorrosive, antirust ability preferably.This solenoid directional control valve also comprises the housing 2, coil 5, the spool 7 that are arranged on valve body 1, on described spool 7, offers axial bore and radial direction through hole, ensures the circulation of fluid.The front end of described valve body 1 is provided with fluid joint 3, rear end is liquid inlet joint 8, described spool 7 is arranged in valve pocket along the axial direction of valve body 1, on the outer surface of valve body 1 winding around 5, offer annular groove 4, coil 5 is wound on valve body 1, and valve body 1 is the airtight cavity of fluid and the magnet case of passage and coil 5; Below the coil 5 near valve body 1 right side, be provided with magnetism resistent ring 6.By being processed with annular groove on the cylindrical at valve body coiling, and be provided with magnetism resistent ring, can not affecting the mechanical strength of valve body and in the less situation of physical dimension, improve the Magnetic flux density of working magnetic gap.
Be connected with Returnning spring 8 at the right-hand member of spool 7, the other end of described Returnning spring 8 is connected on valve body 1; The valve seat 30 of described fluid joint 3 right-hand member outwardly convexs forms seal face with the seal block 70 of spool 7 left end outwardly convexs.In the time that coil is not switched on, under spring-force driven dual, the valve seat planar annular close contact of the seal block end face of spool and fluid joint, because the planar annular area of valve seat is very little, form very circlet shape sealing strip of area with seal block contacting point, sealing band can play good seal action.
In the inlet opening of the liquid inlet joint 9 of valve body 1, filter screen 10 is installed, can effectively stops that impurity particle enters valve inner, prevent impurity particle damage sealing surface.
Described valve body 1 seals by seal washer 11 and Sealing shield ring 12 with fluid joint 3, seal washer 11 is combined with Sealing shield ring 12, and seal washer 11 provides elastic force, can be in lower formation sealing with no pressure, and can play compensating action to the wearing and tearing of Sealing shield ring 12, improve its sealing effect.As preferably, seal washer 11 adopts " O " RunddichtringO, is made up of nitrile butadiene rubber, has extremely low friction factor and good self-lubricating property, long service life, sound state good sealing effect.
The utility model the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. a direct driving type electromagnetic selector valve, comprise valve body (1), be arranged on the housing (2) on valve body (1), coil (5), spool (7), the front end of described valve body (1) is provided with fluid joint (3), rear end is liquid inlet joint (8), described spool (7) is arranged in valve pocket along the axial direction of valve body (1), it is characterized in that: on the outer surface of valve body (1) winding around (5), offer annular groove (4), be provided with magnetism resistent ring (6) in coil (5) below near valve body (1) right side, be connected with Returnning spring (8) at the right-hand member of spool (7), the other end of described Returnning spring (8) is connected on valve body (1), the valve seat (30) of described fluid joint (3) right-hand member outwardly convex forms seal face with the seal block (70) of spool (7) left end outwardly convex, in the inlet opening of the liquid inlet joint (9) of valve body (1), filter screen (10) is installed.
2. direct driving type electromagnetic selector valve according to claim 1, is characterized in that: described spool offers axial bore and radial direction through hole on (7).
3. direct driving type electromagnetic selector valve according to claim 2, is characterized in that: described valve body (1) seals by seal washer (11) and Sealing shield ring (12) with fluid joint (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420223232.9U CN203784004U (en) | 2014-04-25 | 2014-04-25 | Directly-operated type electromagnetic directional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420223232.9U CN203784004U (en) | 2014-04-25 | 2014-04-25 | Directly-operated type electromagnetic directional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203784004U true CN203784004U (en) | 2014-08-20 |
Family
ID=51320196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420223232.9U Expired - Fee Related CN203784004U (en) | 2014-04-25 | 2014-04-25 | Directly-operated type electromagnetic directional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203784004U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879513A (en) * | 2015-05-26 | 2015-09-02 | 北京航空航天大学 | Direct-acting type axial flow electromagnetic valve |
| CN106369184A (en) * | 2016-10-10 | 2017-02-01 | 合肥协力液压科技有限公司 | Reversing solenoid valve |
| CN107477239A (en) * | 2016-06-08 | 2017-12-15 | 浙江盾安禾田金属有限公司 | A kind of electromagnetic water valve |
| CN107575623A (en) * | 2017-11-07 | 2018-01-12 | 湖北中生汽车电器有限公司 | A kind of magnetic valve for controlling motor vehicle antifreeze fluid supply |
-
2014
- 2014-04-25 CN CN201420223232.9U patent/CN203784004U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879513A (en) * | 2015-05-26 | 2015-09-02 | 北京航空航天大学 | Direct-acting type axial flow electromagnetic valve |
| CN107477239A (en) * | 2016-06-08 | 2017-12-15 | 浙江盾安禾田金属有限公司 | A kind of electromagnetic water valve |
| CN107477239B (en) * | 2016-06-08 | 2023-03-07 | 浙江盾安禾田金属有限公司 | Electromagnetic water valve |
| CN106369184A (en) * | 2016-10-10 | 2017-02-01 | 合肥协力液压科技有限公司 | Reversing solenoid valve |
| CN107575623A (en) * | 2017-11-07 | 2018-01-12 | 湖北中生汽车电器有限公司 | A kind of magnetic valve for controlling motor vehicle antifreeze fluid supply |
| CN107575623B (en) * | 2017-11-07 | 2023-09-12 | 湖北中生汽车电器有限公司 | Electromagnetic valve for controlling automobile antifreeze fluid supply |
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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: 20140820 Termination date: 20150425 |
|
| EXPY | Termination of patent right or utility model |