CN201531288U - Valve oil seal with intensified flexing resistance - Google Patents
Valve oil seal with intensified flexing resistance Download PDFInfo
- Publication number
- CN201531288U CN201531288U CN2009202788343U CN200920278834U CN201531288U CN 201531288 U CN201531288 U CN 201531288U CN 2009202788343 U CN2009202788343 U CN 2009202788343U CN 200920278834 U CN200920278834 U CN 200920278834U CN 201531288 U CN201531288 U CN 201531288U
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- CN
- China
- Prior art keywords
- oil seal
- valve oil
- intensified
- sealing body
- elastic sealing
- 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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Abstract
A valve oil seal with intensified flexing resistance comprises a supporting skeleton and an elastic sealing body, wherein the elastic sealing body is used to wrap and fix the supporting skeleton, the upper end of the elastic sealing body is provided with a main sealing lip, arc-shaped convex areas which are evenly distributed around the circumference are arranged inside the waist part of the elastic sealing body under the main sealing lip, and the cross section of each arc-shaped convex area is similar to a triangle. The valve oil seal with intensified flexing resistance greatly lowers the influence of high frequency flexing intensity and aptitude on rubber performance, and guarantees the stability and service life of the valve oil seal.
Description
Technical field
The utility model relates to a kind of seal arrangement, especially relates to the valve oil seal that a kind of anti-flexibility strengthens.
Background technique
Valve oil seal has fundamental influence as " sealing of flow-controllable " to engine performance.In the thousands of time to-and-fro motion of valve guide rod per minute, existing valve oil seal sealed department because and the rubbing action between the guide rod, the stretching and the compression that can produce high frequency, promptly valve oil seal for deflecting fulcrum, deflects motion as high frequency with waist.High frequency deflects athletic meeting and causes rubber fatigue for a long time, follows the string, and produces be full of cracks even fracture, causes valve oil seal to lose efficacy.Wish to pass through architecture advances, avoid or reduce this high frequency deflecting the harmful effect of action oil sealing.
The model utility content
The technical problems to be solved in the utility model provides the valve oil seal that a kind of anti-flexibility strengthens; This valve oil seal greatly reduces high frequency and deflects intensity and amplitude, to the influence of rubber performance, has guaranteed the stability and the working life of valve oil seal.
For solving the problems of the technologies described above, the utility model adopts following technological scheme, and it comprises support frame and elastic sealed body, the described elastic sealed body support frame that is coated and fixed; The upper end of described elastic sealed body is provided with the primary seal lip; The elastic sealed body waist inboard of described primary seal lip below is provided with the equally distributed arc convex of circumference, and this arc convex cross section is subtriangular.After increasing this arc convex structure, the oil sealing waist is played a supporting role, lowered the amplitude and the intensity that deflect motion greatly, and then avoided the rubber premature fatigue, cause inefficacy, improved the stability of oil sealing, and prolonged the working life of oil sealing.Because what adopt is the protruding supporting structure of discontinuous, can avoid forming between oil seal lip position and the waist independently air chamber, because to-and-fro motion produces big variation in pressure, cause the lip distortion, cause the amount of leakage variation abnormality.
The utility model greatly reduces high frequency and deflects the influence to rubber performance of intensity and amplitude, has guaranteed the stability and the working life of valve oil seal.
Description of drawings
Fig. 1 is existing valve oil seal structural representation;
Fig. 2 is the A-A cross-sectional view of Fig. 1;
Fig. 3 is a structural representation of the present utility model;
Fig. 4 is the B-B cross-sectional view of Fig. 3.
Embodiment
In order to show substantive distinguishing features of the present utility model and remarkable progress, further specify mode of execution and effect with following indefiniteness embodiment.
Shown in Fig. 3,4, the utility model comprises support frame 1 and elastic sealed body 2, described elastic sealed body 2 support frame 1 that is coated and fixed; The upper end of described elastic sealed body 2 is provided with primary seal lip 21; The elastic sealed body waist inboard of described primary seal lip 21 belows is provided with 4 equally distributed arc convex 22 on circumference, and these arc convex 22 cross sections are subtriangular.After setting up these arc convex 22 structures, the oil sealing waist is played a supporting role, lowered the amplitude and the intensity that deflect motion greatly, and then avoided the rubber premature fatigue, cause inefficacy, improved the stability of oil sealing, and prolonged the working life of oil sealing.Because what adopt is the protruding supporting structure of discontinuous, can avoid forming between oil seal lip position and the waist independently air chamber, because to-and-fro motion produces big variation in pressure, cause the lip distortion, cause the amount of leakage variation abnormality.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here can't give exhaustive to all mode of executions.Everyly belong to the row that conspicuous variation that the technical solution of the utility model extends out or change still are in protection domain of the present utility model.
Claims (1)
1. valve oil seal that anti-flexibility strengthens, it comprises support frame and elastic sealed body, the described elastic sealed body support frame that is coated and fixed; The upper end of described elastic sealed body is provided with the primary seal lip; It is characterized in that: the elastic sealed body waist inboard of described primary seal lip below is provided with the equally distributed arc convex of circumference, and this arc convex cross section is subtriangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202788343U CN201531288U (en) | 2009-11-11 | 2009-11-11 | Valve oil seal with intensified flexing resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202788343U CN201531288U (en) | 2009-11-11 | 2009-11-11 | Valve oil seal with intensified flexing resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201531288U true CN201531288U (en) | 2010-07-21 |
Family
ID=42526692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202788343U Expired - Fee Related CN201531288U (en) | 2009-11-11 | 2009-11-11 | Valve oil seal with intensified flexing resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201531288U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979591A (en) * | 2012-12-04 | 2013-03-20 | 揭阳市天诚密封件有限公司 | High wear-resistant valve pressurizing oil seal |
| CN103388501A (en) * | 2013-08-18 | 2013-11-13 | 揭阳市天诚密封件有限公司 | Turbocharging valve oil seal capable of resisting high temperature, high pressure and heavy wear |
-
2009
- 2009-11-11 CN CN2009202788343U patent/CN201531288U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979591A (en) * | 2012-12-04 | 2013-03-20 | 揭阳市天诚密封件有限公司 | High wear-resistant valve pressurizing oil seal |
| CN103388501A (en) * | 2013-08-18 | 2013-11-13 | 揭阳市天诚密封件有限公司 | Turbocharging valve oil seal capable of resisting high temperature, high pressure and heavy wear |
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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: 20100721 Termination date: 20121111 |