CN2277471Y - Check valve for vehicle vacuum pump - Google Patents
Check valve for vehicle vacuum pump Download PDFInfo
- Publication number
- CN2277471Y CN2277471Y CN 96224803 CN96224803U CN2277471Y CN 2277471 Y CN2277471 Y CN 2277471Y CN 96224803 CN96224803 CN 96224803 CN 96224803 U CN96224803 U CN 96224803U CN 2277471 Y CN2277471 Y CN 2277471Y
- Authority
- CN
- China
- Prior art keywords
- spool
- spring
- way valve
- valve body
- model
- 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 - Fee Related
Links
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- Check Valves (AREA)
Abstract
The utility model relates to a one-way valve for a vehicle vacuum pump. The utility model is composed of a valve body 1, a valve core 2, and a spring 3. The utility model is characterized in that a sealing surface of the valve core 2 is a convex spherical surface. The one-way valve has the advantages of simple structure and reliable sealing performance.
Description
The utility model relates to the improvement of vacuum automobile pump one-way valve.
One-way valve is a critical component of vacuum automobile pump, and it is made up of valve body, spool, spring.Valve core sealed cover is the spill blade-like, the assurance of its sealability, valve body, the parallelism of spool itself, perpendicularity, concentricity, degree of finish, quality of fit place one's entire reliance upon, particularly the blade-like surface of contact of spool must absolute smooth and no any microlesion and defective, otherwise, can't seal.But because workpiece is little, and the limitation of material, shape, production technology etc., cause valve body, spool to be difficult to reach technical requirements in process of production.Moreover, and cause cost of production height, up-to-standard rate low because complex manufacturing, requirement on machining accuracy are very high.Simultaneously owing to be subjected to the restriction of structure, one-way valve in the course of the work, move insensitive, repeated, reliability is unsecured.For this reason, the improvement to vacuum automobile pump one-way valve is very necessary.
It is a kind of rational in infrastructure that the purpose of this utility model is to provide, and production technology is simple, be active in one's movements, and repeatability, reliability is guaranteed, function admirable, the vacuum automobile pump one-way valve that cost is low.
Solution of the present utility model is made up of valve body, spool, spring, and valve core sealed cover is protruding sphere, and it is simple to reach vacuum automobile pump one-way valve production technology, the reliable purpose of function admirable.
Accompanying drawing is a structure principle chart of the present utility model.
Below in conjunction with drawings and Examples the utility model is further described.
The utility model is made up of valve body 1, spool 2, spring 3, it is characterized in that spool 2 sealing surfaces are protruding sphere, and spring 3 is a pagoda spring.
Working procedure of the present utility model is such: during vacuum pump work, because the effect of negative pressure, spring 3 is compressed, and spool 2 protruding spheres break away from aperture in the valve body 1, and one-way valve is in opening state; And when vacuum pump quit work or the vacuum pump internal pressure greater than valve body 1 in during small bore end, the promptly synthetic thrust of its pressure reduction and spring 2 is pressed on spool 2 protruding spheres in the valve body 1 on the aperture, one-way valve is in closed condition.
The utlity model has following features:
1, because spool 2 sealing surfaces are protruding sphere, check valve is closing When closing, spool 2 is that line contacts with valve body 1 interior aperture, so sealing Function admirable.
2, because spool 2 sealing surfaces are protruding sphere, macropore, the perpendicularity of aperture, concentricity, degree of finish, precision in the valve body 1 are not all had strict demand,, improved manufacturing efficiency, reduced cost so simplified production technology.
3, since spool 2 diameters less than macropore in the valve body 1, spool 2 contact with big hole wall in the valve body 1 in the work, does not have friction, can both guarantee to contact with aperture tight in the valve body 1 and freely break away under any state.Thereby guaranteed the reliability of one-way valve performance.
4, because spool 2 is protruding sphere, be that line contacts with aperture in the valve body 1, so avoided dust to attach, cause the insecure phenomenon of sealability to occur at sealing surface.
When 5, being pagoda spring, one-way valve spool 2 frequent movements, can keep moving, guarantee the reliability and the repeatability of movement in one direction along shaft axis owing to spring 3.
Claims (2)
1, a kind of bump ball type vacuum automobile pump one-way valve is made up of valve body 1, spool 2, spring 3, it is characterized in that spool 2 sealing surfaces are protruding sphere.
2, vacuum automobile pump one-way valve according to claim 1 is characterized in that spring 3 is pagoda spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96224803 CN2277471Y (en) | 1996-10-23 | 1996-10-23 | Check valve for vehicle vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96224803 CN2277471Y (en) | 1996-10-23 | 1996-10-23 | Check valve for vehicle vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2277471Y true CN2277471Y (en) | 1998-04-01 |
Family
ID=33903656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96224803 Expired - Fee Related CN2277471Y (en) | 1996-10-23 | 1996-10-23 | Check valve for vehicle vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2277471Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261323A (en) * | 2011-06-22 | 2011-11-30 | 江苏梅花机械有限公司 | Check valve of automobile vacuum pump |
| CN103867763A (en) * | 2014-01-23 | 2014-06-18 | 温州阿尔贝斯气动有限公司 | Automatic control device for vacuum flow and vacuum degree |
| CN104791011A (en) * | 2015-04-20 | 2015-07-22 | 杨晓东 | Oil gas, gas and steam hybrid engine power system |
| CN106619103A (en) * | 2017-02-11 | 2017-05-10 | 安徽中医药大学 | Improved fumigating moxibustion cover |
-
1996
- 1996-10-23 CN CN 96224803 patent/CN2277471Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261323A (en) * | 2011-06-22 | 2011-11-30 | 江苏梅花机械有限公司 | Check valve of automobile vacuum pump |
| CN103867763A (en) * | 2014-01-23 | 2014-06-18 | 温州阿尔贝斯气动有限公司 | Automatic control device for vacuum flow and vacuum degree |
| CN103867763B (en) * | 2014-01-23 | 2018-01-26 | 温州阿尔贝斯气动有限公司 | A kind of automaton of vacuum flow and vacuum |
| CN104791011A (en) * | 2015-04-20 | 2015-07-22 | 杨晓东 | Oil gas, gas and steam hybrid engine power system |
| CN104791011B (en) * | 2015-04-20 | 2018-04-20 | 张丽琴 | Oil gas, gas, steam hybrid engine dynamical system |
| CN106619103A (en) * | 2017-02-11 | 2017-05-10 | 安徽中医药大学 | Improved fumigating moxibustion cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |