CN201992079U - Reciprocating seal - Google Patents
Reciprocating seal Download PDFInfo
- Publication number
- CN201992079U CN201992079U CN2011200732711U CN201120073271U CN201992079U CN 201992079 U CN201992079 U CN 201992079U CN 2011200732711 U CN2011200732711 U CN 2011200732711U CN 201120073271 U CN201120073271 U CN 201120073271U CN 201992079 U CN201992079 U CN 201992079U
- Authority
- CN
- China
- Prior art keywords
- sealing
- rubber
- skeleton
- seal
- framework
- 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
The utility model relates to a seal, in particular to a reciprocating seal, which comprises rubber, a framework and a seal lip, wherein the framework is wrapped in the rubber, and the inner end of the framework, i.e., one end of the framework towards a rotating shaft, is in a rounded corner; and the radius of the rounded corner is not less than 0.3mm. The reciprocating seal has a simple structure, the rubber can be prevented from being cracked or damaged, and the service life of the seal is prolonged.
Description
Technical field
The utility model relates to a kind of Sealing, and is especially a kind of toward multiplexing Sealing.
Background technique
Generally be used in motor turning booster or the brake system toward multiplexing Sealing.The structure of past multiplexing Sealing generally as shown in Figure 1, comprise rubber 1, metal frame 2 and sealing lip, metal frame 2 is coated in the rubber 1, the effect of playing supporting sealing member and bearing sealed medium pressure, usually skeleton 2 endoporus places are without processing, directly formed by punching of the steel plate, the top and bottom at skeleton endoporus place are wedge angle 3.In working in reciprocating mode, owing to be subjected to the axial pressure of sealed medium, breakage as shown in Figure 2, also can take place when serious very easily owing to stress cracks 4 in the rubber that is positioned at the skeleton sharp corner, makes sealing lip lose support, causes seal failure.Owing to bearing high pressure toward multiplexing Sealing, if in a single day the sealing part lost efficacy, the consequence of its generation is very serious.
The model utility content
The purpose of this utility model is to have proposed a kind of toward multiplexing Sealing, and it is simple in structure, has avoided rubber crackle or breakage, has prolonged the working life of Sealing.
The utility model is to adopt following technological scheme to realize: a kind of past multiplexing Sealing, comprise rubber, skeleton and sealing lip, and skeleton is coated in the rubber, and wherein skeleton the inner promptly is fillet towards an end of running shaft, and the radius of fillet is not less than 0.3mm.
The beneficial effects of the utility model are: by the fillet shape is made in the inner of skeleton, avoided the stress of skeleton the inner to concentrate, made the rubber of to-and-fro motion work be difficult for crackle or breakage, prolonged the working life of Sealing, guaranteed the cruising of vehicle.
Description of drawings
Fig. 1 is existing half sectional view toward multiplexing Sealing;
Fig. 2 is the half sectional view of the past multiplexing Sealing that cracks;
Fig. 3 is the half sectional view of past multiplexing Sealing in the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 3 is described in the utility model toward multiplexing Sealing.The sealing part comprises rubber 1, skeleton 2 and sealing lip, and skeleton 2 is coated in the rubber 1, the effect of playing supporting sealing member and bearing sealed medium pressure.The outside of sealing lip is provided with spring, and the elastic force in the spring provides radial force for sealing lip, makes sealing lip play seal action.The sealing part is enclosed within on the running shaft, and skeleton 2 is that the axial pressure side is fillet 5 towards the inner of running shaft, and the radius of this fillet is not less than 0.3mm.By fillet 5 is set, avoided stress herein to concentrate, in to-and-fro motion work, rubber 1 is difficult for cracking or is damaged, has prolonged the working life of Sealing.
Claims (1)
1. a past multiplexing Sealing comprises rubber (1), skeleton (2) and sealing lip, and skeleton (2) is coated in the rubber (1), is characterised in that: skeleton (2) the inner promptly is fillet (5) towards an end of running shaft, and the radius of fillet (5) is not less than 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200732711U CN201992079U (en) | 2011-03-19 | 2011-03-19 | Reciprocating seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200732711U CN201992079U (en) | 2011-03-19 | 2011-03-19 | Reciprocating seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201992079U true CN201992079U (en) | 2011-09-28 |
Family
ID=44668569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200732711U Expired - Fee Related CN201992079U (en) | 2011-03-19 | 2011-03-19 | Reciprocating seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201992079U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225696A (en) * | 2013-05-21 | 2013-07-31 | 昆山健博密封件科技有限公司 | Sealing element for oil seal of reciprocating moving part |
| CN108019518A (en) * | 2016-10-31 | 2018-05-11 | 德纳汽车系统集团有限责任公司 | Reciprocating air cylinder sleeve seal assembly |
-
2011
- 2011-03-19 CN CN2011200732711U patent/CN201992079U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225696A (en) * | 2013-05-21 | 2013-07-31 | 昆山健博密封件科技有限公司 | Sealing element for oil seal of reciprocating moving part |
| CN108019518A (en) * | 2016-10-31 | 2018-05-11 | 德纳汽车系统集团有限责任公司 | Reciprocating air cylinder sleeve seal assembly |
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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: 20110928 Termination date: 20130319 |