CN203402182U - Normally open solenoid valve for car braking - Google Patents
Normally open solenoid valve for car braking Download PDFInfo
- Publication number
- CN203402182U CN203402182U CN201320440335.6U CN201320440335U CN203402182U CN 203402182 U CN203402182 U CN 203402182U CN 201320440335 U CN201320440335 U CN 201320440335U CN 203402182 U CN203402182 U CN 203402182U
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- valve
- valve body
- armature
- normally open
- open solenoid
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Abstract
The utility model discloses a normally open solenoid valve for car braking. The normally open solenoid valve for car braking aims to solve the problems that according to an existing normally open solenoid valve for car braking, valve port leakage is not prone to being controlled, and the sealing performance is poor. The normally open solenoid valve comprises a valve seat body and a valve body. A liquid outlet channel is axially arranged in the valve seat body, and a valve cavity is axially arranged in the valve body. An armature is arranged in the valve cavity and located above the valve seat body. The position, close to the lower end of the valve body, in the liquid outlet channel is tightly connected with a main valve seat. A throttling hole is formed in the main valve seat and is of a stepped-hole structure with a small upper portion and a big lower portion. A valve rod is arranged above the main valve seat in the liquid outlet channel, and the lower end of the valve rod is of a spherical crown structure. The upper end opening of the stepped-hole structured throttling hole is of a funnel-shaped structure, the valve rod is sleeved with a spring, the upper end of the spring abuts against the valve rod, the lower end of the spring abuts against the main valve seat, the upper end of the valve rod abuts against the armature, and a gap is formed between the lower end of the valve rod and the upper end opening of the throttling hole. According to the normally open solenoid valve for car braking, the valve port of the solenoid valve is not prone to leakage, and the sealing performance is good.
Description
Technical field
The utility model relates to a kind of electromagnetic valve, and more particularly, it relates to a kind of car brakeing normally open solenoid valve of good airproof performance.
Background technology
In anti-locking system for car, need to use and often open boost electromagnetic valve, be used for connecting master brake cylinder and brake wheel cylinder.At present conventional automobile brake normally open solenoid valve adopts metal seat valve and plastics armature core plane sealing structure, and valve port leaks wayward, poor sealing performance.
Chinese patent notification number CN201235817Y, a kind of new A BS normally open solenoid valve is disclosed, comprise valve body, valve opening and the kinetoplast that is arranged on valve opening top, valve body outside is arranged with ring filter screen, and valve body bottom is provided with end filter screen, and kinetoplast and valve body outside are arranged with magnetic flux tube, between magnetic flux tube and kinetoplast, adopt free-running fit, the internal diameter of magnetic flux tube thin-walled portion is greater than kinetoplast outer diameter, and kinetoplast outer diameter is greater than valve opening diameter, and kinetoplast is by moving iron and spool is injection molded.The electromagnetic valve valve seat of this structure and spool face seal, valve port leaks wayward, poor sealing performance.
Utility model content
The utility model has overcome existing automobile brake normally open solenoid valve valve port and has leaked waywardly, and the deficiency of poor sealing performance, provides a kind of car brakeing normally open solenoid valve, and its valve port is difficult for leakage, and leak tightness performance is good.
In order to solve the problems of the technologies described above, the utility model is by the following technical solutions: a kind of car brakeing normally open solenoid valve, comprise valve body, be connected to the valve body on valve body, in valve body, be axially arranged with liquid outlet channel, in valve body, be axially arranged with valve pocket, in valve pocket, be provided with armature, armature is arranged on the top of valve body, lower end position near valve body in liquid outlet channel is closely connected with main valve seat, in main valve seat, be provided with cutoff port, cutoff port is up-small and down-big step cavernous structure, in liquid outlet channel, the top of main valve seat is provided with valve rod, the lower end of valve rod is spherical crown shape structure, the cutoff port upper end open funnel structure of step cavernous structure, on valve rod, be socketed with spring, spring upper end is connected on valve rod, spring lower end is connected on main valve seat, valve rod upper end is connected on armature, between valve rod lower end and cutoff port upper end open, be provided with gap.
Under initial condition, between the effect lower valve rod lower end of spring and cutoff port upper end open, be provided with gap, cutoff port is opened, and electromagnetic valve is in normally open.After coil electricity, armature is subject to electromagnetic attracting force and moves down, and promotes valve rod and move down, and valve rod lower end is connected to the cutoff port aperture position of main valve seat upper end cutoff port is closed, makes electromagnetic valve in closed condition.After coil blackout, valve rod moves up under the effect of spring, and cutoff port is opened, and electromagnetic valve is again in normally open.After the valve rod lower end of spherical crown shape structure and valve port position, funnelform cutoff port upper end butt, area of contact is large, good airproof performance, and valve port is difficult for leaking.
As preferably, valve rod is provided with spacing ring near the outer wall of upper end, and spacing ring and valve-stem integrated structure are axially laid with some valve rod oil grooves on spacing ring outer wall, and spring is connected to the lower end of spacing ring, and valve rod upper surface is provided with valve rod groove.Spacing ring plays the effect of support limit to spring, the valve rod oil groove being arranged on spacing ring outer wall is convenient to flowing of fluid.
As preferably, valve body is provided with fluid hole near the outer wall of main valve seat, and fluid hole is arranged on the top of main valve seat, and fluid hole is communicated with valve pocket and liquid outlet channel.The fluid hole that is arranged on main valve seat top facilitates fluid flowing in electromagnetic valve.
As preferably, the cylindrical structure of armature, the upper end of armature is round table-like structure, and armature upper surface is provided with circular groove, is laid with vertically some armature oil grooves on armature outer wall, is provided with the otch being obliquely installed between armature oil groove upper end and circular groove.The armature of this structure setting facilitates flowing of fluid.
As preferably, main valve seat interference fit is connected in liquid outlet channel, and the transition face that the cutoff port path part of step cavernous structure is connected with large diameter portion is obliquely installed.Interference fit between main valve seat and liquid outlet channel, connects reliably good airproof performance.
As preferably, on valve body, be Step Shaft shape structure, the valve body large diameter portion of Step Shaft shape structure and the transition of path partial arc with valve body connection location.This structure setting makes the connection location of valve body and valve body leave enough spaces for the flowing of fluid, and fluid is flowed more smooth and easy.
As preferably, valve body and valve body are riveted together, and in valve pocket, near valve body lower end position, are provided with the first filter screen, and the first filter screen set is connected on valve body outer wall; Valve body is provided with a ring shape link slot near the outer wall of lower end, is provided with lip-type packing in link slot, and the aperture position of the lower end liquid outlet channel of valve body is provided with the second filter screen.The first filter screen and the second filter screen filter fluid, prevent from being with foreign material fluid to flow in electromagnetic valve, and prevent from being with foreign material fluid to flow out in electromagnetic valve.
Compared with prior art, the beneficial effects of the utility model are: car brakeing is difficult for leaking with the valve port of normally open solenoid valve, and leak tightness performance is good.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the structural representation of armature of the present utility model;
In figure: 1, valve body, 2, valve body, 3, liquid outlet channel, 4, valve pocket, 5, armature, 6, main valve seat, 7, cutoff port, 8, valve rod, 9, spring, 10, spacing ring, 11, valve rod oil groove, 12, valve rod groove, 13, fluid hole, 14, circular groove, 15, armature oil groove, 16, otch, the 17, first filter screen, 18, link slot, 19, lip-type packing, the 20, second filter screen.
The specific embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described specifically:
Embodiment: a kind of normally open solenoid valve (referring to accompanying drawing 1) for car brakeing, comprise valve body 1, be connected to the valve body 2 on valve body, in valve body, be axially arranged with liquid outlet channel 3, in valve body, be axially arranged with valve pocket 4, in valve pocket, be provided with armature 5(referring to accompanying drawing 2), armature is arranged on the top of valve body.The cylindrical structure of armature, the upper end of armature is round table-like structure, and armature upper surface is provided with circular groove 14, is laid with vertically between two armature oil grooves, 15, two armature oil groove upper ends and circular groove and is equipped with the otch 16 being obliquely installed on armature outer wall.Lower end position near valve body in liquid outlet channel is closely connected with main valve seat 6, and main valve seat interference fit is connected in liquid outlet channel.Liquid outlet channel inwall is all step-like structure near the position, top and bottom of main valve seat, and main valve seat is connected in liquid outlet channel and can move axially, and spacing connection is reliable.The cylindrical structure of main valve seat, is provided with cutoff port 7 in main valve seat, cutoff port is up-small and down-big step cavernous structure, and the transition face that the cutoff port path part of step cavernous structure is connected with large diameter portion is obliquely installed.In liquid outlet channel, the top of main valve seat is provided with valve rod 8, and the lower end of valve rod is spherical crown shape structure, the cutoff port upper end open funnel structure of step cavernous structure.On valve rod, be socketed with spring 9, spring upper end is connected on valve rod, and spring lower end is connected on main valve seat, and valve rod upper end is connected on armature, between valve rod lower end and cutoff port upper end open, is provided with gap.Valve rod is provided with spacing ring 10 near the outer wall of upper end, and spacing ring and valve-stem integrated structure are axially laid with two valve rod oil grooves 11 on spacing ring outer wall, and spring is connected to the lower end of spacing ring, and valve rod upper surface is provided with valve rod groove 12.Valve rod groove has reduced the area of contact of valve rod upper end and armature, and making the contact surface of valve rod upper end and armature is planar annular, has increased the stationarity after valve rod and armature butt.Valve body is provided with fluid hole 13 near the outer wall of main valve seat, and fluid hole is arranged on the top of main valve seat, and fluid hole is communicated with valve pocket and liquid outlet channel.On valve body, be Step Shaft shape structure, the valve body large diameter portion of Step Shaft shape structure and the transition of path partial arc with valve body connection location.Valve body and valve body are riveted together, and be provided with the first filter screen 17, the first filter screen sets be connected on valve body outer wall in valve pocket near valve body lower end position; Valve body is provided with a ring shape link slot 18 near the outer wall of lower end, is provided with lip-type packing 19 in link slot, and the aperture position of the lower end liquid outlet channel of valve body is provided with the second filter screen 20.
Under initial condition, between the effect lower valve rod lower end of spring and cutoff port upper end open, be provided with gap, cutoff port is opened, and electromagnetic valve is in normally open.After coil electricity, armature is subject to electromagnetic attracting force and moves down, and promotes valve rod and move down, and valve rod lower end is connected to the cutoff port aperture position of main valve seat upper end cutoff port is closed, makes electromagnetic valve in closed condition.After coil blackout, valve rod moves up under the effect of spring, and cutoff port is opened, and electromagnetic valve is again in normally open.After the valve rod lower end of spherical crown shape structure and valve port position, funnelform cutoff port upper end butt, area of contact is large, good airproof performance, and valve port is difficult for leaking
Above-described embodiment is a kind of preferably scheme of the present utility model, not the utility model is done to any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim records.
Claims (7)
1. a car brakeing normally open solenoid valve, comprise valve body (1), be connected to the valve body (2) on valve body, in valve body, be axially arranged with liquid outlet channel (3), in valve body, be axially arranged with valve pocket (4), it is characterized in that, in valve pocket, be provided with armature (5), armature is arranged on the top of valve body, lower end position near valve body in liquid outlet channel is closely connected with main valve seat (6), in main valve seat, be provided with cutoff port (7), cutoff port is up-small and down-big step cavernous structure, in liquid outlet channel, the top of main valve seat is provided with valve rod (8), the lower end of valve rod is spherical crown shape structure, the cutoff port upper end open funnel structure of step cavernous structure, on valve rod, be socketed with spring (9), spring upper end is connected on valve rod, spring lower end is connected on main valve seat, valve rod upper end is connected on armature, between valve rod lower end and cutoff port upper end open, be provided with gap.
2. car brakeing normally open solenoid valve according to claim 1, it is characterized in that, valve rod is provided with spacing ring (10) near the outer wall of upper end, spacing ring and valve-stem integrated structure, on spacing ring outer wall, be axially laid with some valve rod oil grooves (11), spring is connected to the lower end of spacing ring, and valve rod upper surface is provided with valve rod groove (12).
3. car brakeing normally open solenoid valve according to claim 1, is characterized in that, valve body is provided with fluid hole (13) near the outer wall of main valve seat, and fluid hole is arranged on the top of main valve seat, and fluid hole is communicated with valve pocket and liquid outlet channel.
4. car brakeing normally open solenoid valve according to claim 1, it is characterized in that, the cylindrical structure of armature, the upper end of armature is round table-like structure, armature upper surface is provided with circular groove (14), on armature outer wall, be laid with vertically some armature oil grooves (15), between armature oil groove upper end and circular groove, be provided with the otch (16) being obliquely installed.
5. car brakeing normally open solenoid valve according to claim 1, is characterized in that, main valve seat interference fit is connected in liquid outlet channel, and the transition face that the cutoff port path part of step cavernous structure is connected with large diameter portion is obliquely installed.
6. car brakeing normally open solenoid valve according to claim 1, is characterized in that, on valve body, is Step Shaft shape structure, the valve body large diameter portion of Step Shaft shape structure and the transition of path partial arc with valve body connection location.
7. car brakeing normally open solenoid valve according to claim 1, is characterized in that, valve body and valve body are riveted together, and in valve pocket, near valve body lower end position, is provided with the first filter screen (17), and the first filter screen set is connected on valve body outer wall; Valve body is provided with a ring shape link slot (18) near the outer wall of lower end, is provided with lip-type packing (19) in link slot, and the aperture position of the lower end liquid outlet channel of valve body is provided with the second filter screen (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320440335.6U CN203402182U (en) | 2013-07-22 | 2013-07-22 | Normally open solenoid valve for car braking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320440335.6U CN203402182U (en) | 2013-07-22 | 2013-07-22 | Normally open solenoid valve for car braking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203402182U true CN203402182U (en) | 2014-01-22 |
Family
ID=49938122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320440335.6U Expired - Fee Related CN203402182U (en) | 2013-07-22 | 2013-07-22 | Normally open solenoid valve for car braking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203402182U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931407A (en) * | 2018-07-06 | 2019-06-25 | 万向钱潮股份有限公司 | A kind of automobile brake normally open solenoid valve |
| CN110319261A (en) * | 2019-06-21 | 2019-10-11 | 芜湖伯特利电子控制系统有限公司 | A kind of solenoid valve of controllable electromagnetic force consistency |
-
2013
- 2013-07-22 CN CN201320440335.6U patent/CN203402182U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931407A (en) * | 2018-07-06 | 2019-06-25 | 万向钱潮股份有限公司 | A kind of automobile brake normally open solenoid valve |
| CN110319261A (en) * | 2019-06-21 | 2019-10-11 | 芜湖伯特利电子控制系统有限公司 | A kind of solenoid valve of controllable electromagnetic force consistency |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20190722 |