CN202326891U - Oil seal for shock absorber - Google Patents
Oil seal for shock absorber Download PDFInfo
- Publication number
- CN202326891U CN202326891U CN2011204518011U CN201120451801U CN202326891U CN 202326891 U CN202326891 U CN 202326891U CN 2011204518011 U CN2011204518011 U CN 2011204518011U CN 201120451801 U CN201120451801 U CN 201120451801U CN 202326891 U CN202326891 U CN 202326891U
- Authority
- CN
- China
- Prior art keywords
- oil seal
- seal cover
- shock absorber
- oil
- 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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- Fluid-Damping Devices (AREA)
Abstract
The utility model provides an oil seal for a shock absorber. The oil seal for the shock absorber comprises an outer cylinder, wherein a guide base is arranged at the front end of the outer cylinder; an oil seal is pressed at the external end of the guide base; a spring is arranged between the guide base and the oil seal; an oil seal cover is arranged on the exterior of the oil seal; the top end of a piston rod penetrates through the guide base, the oil seal and the oil seal cover and extends out of the front end of the outer cylinder; and a plurality of convex ridges are arranged on an upper end face of the oil seal in contact with the oil seal cover. In the oil seal for the shock absorber according to the utility model, the plurality of convex ridges are arranged on the upper end face of the oil seal in contact with the oil seal cover, multiple lines are in contact with a conical surface of the oil seal cover after the convex ridges are additionally arranged on the conical surface of the oil seal, so that a binding surface between the oil seal and the oil seal cover is in linear contact and the static sealing property between the oil seal and the oil seal cover is efficiently increased.
Description
Technical field
The utility model relates to a kind of shock absorber packing gland.
Background technique
Automobile Shock Absorber piston rod to-and-fro motion with wheel hop at work needs oil sealing like this to sealing between piston rod and the vibration damper inner body, makes defective shock absorber to prevent sewing of shock absorber oil.In the design of in the past oil sealing, common concern be the motive sealing problem between piston rod and the oil sealing, it is bad and damper leakage that cause lost efficacy to have ignored static seal between oil sealing and the oil seal cover.The prior oscillating damper oil sealing, as shown in Figure 1, its oil sealing 3 is that face contacts with faying surface between the oil seal cover 5, sealing is poor.Face contacts the existence because of foozle with face, good contact that can not 100% between two conical surfaces can produce seepage oil hidden danger.
Summary of the invention
The purpose of the utility model provides a kind of shock absorber packing gland, through changing the surface of contact between oil sealing and the oil seal cover, reaches the purpose that improves the static seal performance between oil sealing dish and the oil seal cover.
In order to solve the problems of the technologies described above, the technological scheme of the utility model is following: shock absorber packing gland comprises urceolus; Said housing front end is provided with guide holder; The outer end of guide holder is pressed with oil sealing, is provided with spring between guide holder and the oil sealing, and the outside of oil sealing is provided with oil seal cover; The top of piston rod is passed guide ring, oil sealing, oil seal cover and is stretched out from outer cylinder front end, and it is characterized in that: the contacted upper-end surface of said oil sealing and oil seal cover is provided with many fins.
Beneficial effect:
Use the described shock absorber packing gland of the utility model; The upper-end surface that oil sealing contacts with oil seal cover is provided with many fins; After the oil sealing conical surface increases fin; Be to be contacted with the oil seal cover conical surface by many lines, oil sealing is that line contacts with faying surface between the oil seal cover like this, has effectively improved the static seal performance between oil sealing and the oil seal cover.
Description of drawings
Fig. 1 is the structural representation of existing shock absorber packing gland.
Fig. 2 is the structural representation of the utility model shock absorber packing gland.
Fig. 3 is the enlarged view of A portion among Fig. 2.
Embodiment
Like Fig. 2, the utility model shock absorber packing gland shown in Figure 3; Comprise urceolus 1, said urceolus 1 front end is provided with guide holder 2, and the outer end of guide holder 2 is pressed with oil sealing 3; Be provided with spring 4 between guide holder 2 and the oil sealing 3; The outside of oil sealing 3 is provided with oil seal cover 5, and the top of piston rod 6 is passed guide holder 2, oil sealing 3, oil seal cover 5 and stretched out from urceolus 1 front end, and said oil sealing 3 is provided with many fins 7 with oil seal cover 5 contacted upper-end surfaces.。
Claims (1)
1. shock absorber packing gland; Comprise urceolus, said outer cylinder front end is provided with guide holder, and the outer end of guide holder is pressed with oil sealing; Be provided with spring between guide holder and the oil sealing; The outside of oil sealing is provided with oil seal cover, and the top of piston rod is passed guide holder, oil sealing, oil seal cover and stretched out from outer cylinder front end, and it is characterized in that: the contacted upper-end surface of said oil sealing and oil seal cover is provided with many fins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204518011U CN202326891U (en) | 2011-11-15 | 2011-11-15 | Oil seal for shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204518011U CN202326891U (en) | 2011-11-15 | 2011-11-15 | Oil seal for shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202326891U true CN202326891U (en) | 2012-07-11 |
Family
ID=46438871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204518011U Expired - Fee Related CN202326891U (en) | 2011-11-15 | 2011-11-15 | Oil seal for shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202326891U (en) |
-
2011
- 2011-11-15 CN CN2011204518011U patent/CN202326891U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20151115 |
|
| EXPY | Termination of patent right or utility model |