CN203322269U - High-sealing-performance framework oil seal - Google Patents
High-sealing-performance framework oil seal Download PDFInfo
- Publication number
- CN203322269U CN203322269U CN2013202834831U CN201320283483U CN203322269U CN 203322269 U CN203322269 U CN 203322269U CN 2013202834831 U CN2013202834831 U CN 2013202834831U CN 201320283483 U CN201320283483 U CN 201320283483U CN 203322269 U CN203322269 U CN 203322269U
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- CN
- China
- Prior art keywords
- lip
- rubber body
- oil seal
- framework oil
- 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
The utility model relates to a high-sealing-performance framework oil seal which comprises a rubber body (1) of a C-type structure, a framework (2) and a spring (3), wherein an opening of the rubber body (1) of the C-type structure faces upwards, the framework (2) is embedded in the rubber body (1), and the spring (3) is arranged in a spring groove of the rubber body (1). The high-sealing-performance framework oil seal is characterized in that a transverse extending section (4) is outwards arranged at the lower end of the outer wall of the rubber body (1), a first lip (5) and a second lip (6) are inwards arranged at the upper half section of the inner wall of the rubber body (1), and a third lip (7) and a fourth lip (8) are inwards arranged at the lower half section of the inner wall of the rubber body (1). The high-sealing-performance framework oil seal has the advantages that sealing performance is high, dust cannot enter the oil seal easily, and requirements of occasions for high accuracy and the high sealing performance can be met.
Description
Technical field
The utility model relates to a kind of outside framework oil seal, relates in particular to a kind of high leak tightness outside framework oil seal, belongs to the automobile component field.
Background technique
Oil sealing, also can be described as the running shaft lip-shaped sealed ring, is indispensable seal element in power equipment, and the quality of oil sealing quality and performance directly has influence on sealing, Security and the reliability of machine.Outside framework oil seal commonly used is C type structure at present, it comprises rubber body, is embedded at skeleton and spring in rubber body, the outer wall of outside framework oil seal is cylndrical surface, the inwall of outside framework oil seal is provided with two lips, so sealing structure performance is general, dust easily enters inside, and the occasion required for highi degree of accuracy, high leak tightness can not meet.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of sealability higher, and dust is not easy to enter inside, can meet the high leak tightness outside framework oil seal of highi degree of accuracy, high leak tightness requirement occasion.
The purpose of this utility model is achieved in that
A kind of high leak tightness outside framework oil seal, it comprises rubber body, skeleton and the spring of C type structure, the rubber body opening upwards of C type structure, described skeleton is embedded in rubber body, described spring is arranged in the spring groove of rubber body, it is characterized in that the outer wall lower end of described rubber body is to being outside equipped with the horizontal expansion section, the inwall upper semisection of described rubber body inwardly is provided with the first lip and the second lip, and the inwall lower semisection of described rubber body inwardly is provided with the 3rd lip and the 4th lip.
Preferably between described the first lip and the second lip, be disposed with inclined-plane, vertical plane and inclined-plane as a kind of, be provided with the arc shaped surface of indent between described the 3rd lip and the 4th lip.
As a kind of preferred, the outer end of described the 4th lip forms a downward angle of inclination with respect to the rubber body crosspiece, and this angle is preferably 25 ° ~ 30 °.
Compared with prior art, the beneficial effects of the utility model are:
The utility model, due to the high leak tightness of horizontal expansion section assurance outside framework oil seal outer wall, due to the setting of the first lip, the second lip, the 3rd lip and the 4th lip, guarantees the high leak tightness of outside framework oil seal inwall.Therefore to have sealability higher for this high leak tightness outside framework oil seal, and dust is not easy to enter inside, can meet the advantage that highi degree of accuracy, high leak tightness require occasion.
The accompanying drawing explanation
The structural representation that Fig. 1 is the utility model high leak tightness outside framework oil seal.
Wherein:
Rubber body 1
Skeleton 2
The first lip 5
The second lip 6
The 3rd lip 7
The 4th lip 8.
Embodiment
Referring to Fig. 1, a kind of high leak tightness outside framework oil seal that the utility model relates to, it comprises the rubber body 1 of C type structure, skeleton 2 and spring 3, rubber body 1 opening upwards of C type structure, described skeleton 2 is embedded in rubber body 1, described spring 3 is arranged in the spring groove of rubber body 1, the outer wall lower end of described rubber body 1 is to being outside equipped with horizontal expansion section 4, the inwall upper semisection of described rubber body 1 inwardly is provided with the first lip 5 and the second lip 6, be disposed with inclined-plane between described the first lip 5 and the second lip 6, vertical plane and inclined-plane, the inwall lower semisection of described rubber body 1 inwardly is provided with the 3rd lip 7 and the 4th lip 8, be provided with the arc shaped surface of indent between described the 3rd lip 7 and the 4th lip 8, the outer end of described the 4th lip 8 forms a downward angle of inclination with respect to rubber body 1 crosspiece, this angle is preferably 25 ° ~ 30 °.
Claims (3)
1. a high leak tightness outside framework oil seal, it comprises the rubber body (1) of C type structure, skeleton (2) and spring (3), rubber body (1) opening upwards of C type structure, described skeleton (2) is embedded in rubber body (1), described spring (3) is arranged in the spring groove of rubber body (1), it is characterized in that the outer wall lower end of described rubber body (1) is to being outside equipped with horizontal expansion section (4), the inwall upper semisection of described rubber body (1) inwardly is provided with the first lip (5) and the second lip (6), the inwall lower semisection of described rubber body (1) inwardly is provided with the 3rd lip (7) and the 4th lip (8).
2. a kind of high leak tightness outside framework oil seal according to claim 1, it is characterized in that being disposed with inclined-plane, vertical plane and inclined-plane between described the first lip (5) and the second lip (6), be provided with the arc shaped surface of indent between described the 3rd lip (7) and the 4th lip (8).
3. a kind of high leak tightness outside framework oil seal according to claim 1 and 2, is characterized in that the outer end of described the 4th lip (8) forms a downward angle of inclination with respect to rubber body (1) crosspiece, and this angle is preferably 25 ° ~ 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202834831U CN203322269U (en) | 2013-05-23 | 2013-05-23 | High-sealing-performance framework oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202834831U CN203322269U (en) | 2013-05-23 | 2013-05-23 | High-sealing-performance framework oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203322269U true CN203322269U (en) | 2013-12-04 |
Family
ID=49661621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202834831U Expired - Fee Related CN203322269U (en) | 2013-05-23 | 2013-05-23 | High-sealing-performance framework oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203322269U (en) |
-
2013
- 2013-05-23 CN CN2013202834831U patent/CN203322269U/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: 20131204 Termination date: 20140523 |