CN201916550U - One-way valve for vacuum booster - Google Patents
One-way valve for vacuum booster Download PDFInfo
- Publication number
- CN201916550U CN201916550U CN2011200253098U CN201120025309U CN201916550U CN 201916550 U CN201916550 U CN 201916550U CN 2011200253098 U CN2011200253098 U CN 2011200253098U CN 201120025309 U CN201120025309 U CN 201120025309U CN 201916550 U CN201916550 U CN 201916550U
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- CN
- China
- Prior art keywords
- valve
- sealing gasket
- vacuum booster
- valve gap
- way valve
- 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
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- Details Of Valves (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The utility model relates to a one-way valve for a vacuum booster. The one-way valve comprises a valve seat and a valve cover, wherein the valve seat is buckled with the valve cover to form a valve cavity; and a vent hole is formed at a position on the valve cover corresponding to the valve cavity. The one-way valve is characterized in that: a gasket which can cover the vent hole is arranged in the valve cavity; one side of the valve cover, corresponding to the valve cavity, is provided with a guide post protruding towards the valve cavity; the gasket and the guide post are sleeved on the outer side of the guide post in an interference fit way; and the valve seat is provided with a limiting post protruding towards the other side of the gasket corresponding to the valve cover. The technical scheme of the utility model has the advantages that the channel is large, the opening pressure is low, the vacuum leakage is not easy to cause, and the service life is longer.
Description
Technical field
The utility model relates to automobile brake vacuum booster part field, is specifically related to a kind of vacuum booster one-way valve.
Background technique
One-way valve belongs to the vacuum booster vitals, existing vacuum booster one-way valve, generally include valve seat and valve gap, valve seat and valve gap fasten and form valve pocket, the corresponding valve pocket of described valve gap position is provided with vent, one-way valve adopts end face with sealing with the spring compression Sealing, can not be too big because of its one-way valve cracking pressure of spring force effect passage higher, that taked is arranged; Also exist Sealing in addition under the spring long duration of action, rubber seal is yielding, and working life, the low and bad meeting of guidance quality caused vacuum leak, and the shortcoming that is prone to abnormal sound during work.When engine misses and if one-way valve leaks, can cause the vacuum booster inner vacuum to descend, driver's required pedaling force of braking is big, and causes traffic accident.
Summary of the invention
At the deficiency that prior art exists, the purpose of this utility model is the vacuum booster one-way valve that a kind of major path, low cracking pressure is provided, is difficult for causing vacuum leak, longer service life.
For achieving the above object, the utility model provides following technological scheme: a kind of vacuum booster one-way valve, comprise valve seat and valve gap, valve seat and valve gap fasten and form valve pocket, the corresponding valve pocket of described valve gap position is provided with vent, it is characterized in that: be provided with the sealing gasket that can cover described vent in the described valve pocket, corresponding valve pocket one side of described valve gap is provided with the directional post to the valve pocket projection, described sealing gasket and directional post interference fit are set in the directional post outside, and described valve seat is provided with the limited post to the corresponding valve gap opposite side of sealing gasket projection.
By adopting technique scheme, when vacuumizing sealing gasket is picked up, thereby open pore, sealing gasket rose from directional post when directional post can guarantee to pick up, to guarantee the good again guidance quality of sealing gasket, during engine misses, the degree of vacuum in the vacuum booster is higher with sealing gasket back suction and valve bonnet seal, guarantees the reliable vacuum of vacuum booster ante-chamber.Thereby need not spring, have major path, low cracking pressure, be difficult for causing the effect of vacuum leak, longer service life.
The utility model further is set to: the tapered setting of described directional post, directional post and valve gap connecting end diameter are greater than the other end.
By adopting technique scheme, sealing gasket was more and more littler of gapped fully from the rise value of interference fit that caused of directional post when the guiding awl can guarantee to pick up, and the assurance venting channels is unimpeded, not only can guarantee sealing gasket but also good guidance quality.
The utility model also further is set to: the corresponding valve pocket of described valve gap one side end face is provided with the annular convex rib around this end face.
By adopting technique scheme, sealing gasket is evenly contacted with annular convex rib, guarantee sealing reliably.
The utility model also further is set to: described limited post is set to three places, and is 120 degree and evenly is arranged on the corresponding valve gap opposite side of sealing gasket.
By adopting technique scheme, three place's limited posts of valve seat blocked sealing gasket circumference 3 points when sealing gasket picked up, and prevented that sealing gasket is monolateral or picked up inhomogeneous weightlessness, caused sealing gasket to continue the noise that sorption is caused.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is the utility model vacuum booster one-way valve example structure figure.
Embodiment
Referring to accompanying drawing 1 and accompanying drawing 2, the disclosed vacuum booster one-way valve of the utility model, comprise valve seat 1 and valve gap 3, valve seat 1 fastens with valve gap 3 and forms valve pocket 4, described valve gap 3 corresponding valve pockets 4 positions are provided with vent 31, be provided with the sealing gasket 2 that can cover described vent 31 in the described valve pocket 4, described valve gap 3 corresponding valve pocket 4 one sides are provided with the directional post 32 to valve pocket 4 projectioies, described sealing gasket 2 is set in directional post 32 outsides with directional post 32 interference fit, and described valve seat 1 is provided with the limited post 11 to sealing gasket 2 corresponding valve gap 3 opposite side projectioies.By adopting technique scheme, when vacuumizing sealing gasket 2 is picked up, thereby open vent 31, sealing gasket 2 rose from directional post 32 when directional post 32 can guarantee to pick up, to guarantee the good again guidance quality of sealing gasket 2, during engine misses, the degree of vacuum in the vacuum booster guarantees the reliable vacuum of vacuum booster ante-chamber with sealing gasket 2 back suctions and valve gap 3 sealings.Thereby need not spring, have major path, low cracking pressure, be difficult for causing the effect of vacuum leak, longer service life.
Present embodiment further is set to: described directional post 32 tapered settings, directional post 32 and valve gap 3 connecting end diameters are greater than the other end.By adopting technique scheme, sealing gasket 2 was more and more littler of gapped fully from the rise value of interference fit that caused of directional post 32 when directional post 32 can guarantee to pick up, and the assurance venting channels is unimpeded, not only can guarantee sealing gasket 2 but also good guidance quality.
Present embodiment also further is set to: described valve gap 3 corresponding valve pockets 4 one side end faces are provided with the annular convex rib 33 around this end face.By adopting technique scheme, sealing gasket 2 is evenly contacted with annular convex rib 33, guarantee sealing reliably.
Present embodiment also further is set to: described limited post 11 is set to three places, and is 120 degree and evenly is arranged on sealing gasket 2 corresponding valve gap 3 opposite sides.By adopting technique scheme, three place's limited posts 11 of valve seat 1 blocked sealing gasket 2 circumference 3 points when sealing gasket 2 picked up, and prevented that sealing gasket 2 is monolateral or pick up inhomogeneous weightlessness, caused sealing gasket 2 to continue the noise that sorptions are caused.
Claims (4)
1. vacuum booster one-way valve, comprise valve seat and valve gap, valve seat and valve gap fasten and form valve pocket, the corresponding valve pocket of described valve gap position is provided with vent, it is characterized in that: be provided with the sealing gasket that can cover described vent in the described valve pocket, corresponding valve pocket one side of described valve gap is provided with the directional post to the valve pocket projection, and described sealing gasket and directional post interference fit are set in the directional post outside, and described valve seat is provided with the limited post to the corresponding valve gap opposite side of sealing gasket projection.
2. vacuum booster one-way valve according to claim 1 is characterized in that: the tapered setting of described directional post, directional post and valve gap connecting end diameter are greater than the other end.
3. vacuum booster one-way valve according to claim 1 and 2 is characterized in that: the corresponding valve pocket of described valve gap one side end face is provided with the annular convex rib around this end face.
4. vacuum booster one-way valve according to claim 3 is characterized in that: described limited post is set to three places, and is 120 degree and evenly is arranged on the corresponding valve gap opposite side of sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200253098U CN201916550U (en) | 2011-01-26 | 2011-01-26 | One-way valve for vacuum booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200253098U CN201916550U (en) | 2011-01-26 | 2011-01-26 | One-way valve for vacuum booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201916550U true CN201916550U (en) | 2011-08-03 |
Family
ID=44416346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200253098U Expired - Fee Related CN201916550U (en) | 2011-01-26 | 2011-01-26 | One-way valve for vacuum booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201916550U (en) |
-
2011
- 2011-01-26 CN CN2011200253098U patent/CN201916550U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20140126 |