CN204372027U - Leak free dydraulic shock absorber - Google Patents
Leak free dydraulic shock absorber Download PDFInfo
- Publication number
- CN204372027U CN204372027U CN201420730159.4U CN201420730159U CN204372027U CN 204372027 U CN204372027 U CN 204372027U CN 201420730159 U CN201420730159 U CN 201420730159U CN 204372027 U CN204372027 U CN 204372027U
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder body
- flexible sealing
- shock absorber
- 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 kind of leak free dydraulic shock absorber, comprise interior outer cylinder body, inner cylinder body inner chamber is provided with piston and piston rod, inner cylinder body is divided into two Seal cages by piston, it is characterized in that: two the flexible sealing linings arranging diameter different in the Seal cage of this side of piston rod form an annular seal space, a flexible sealing lining is also set in another Seal cage, makes to form static sealing between cylinder body and piston.The utility model is by between cylinder body and piston, increase flexible sealing lining, this flexible sealing lining free-extension on piston movement direction, it and be the coupled condition that seals between cylinder body and piston, in the movement process of piston, make hydraulic medium relatively independent at one, work in the space of sealing, the generation of leakage phenomenon is avoided from root, achieve leak free working state, avoid the leakage problem at the position such as piston rod and cylinder body in traditional dydraulic shock absorber, even use the hydraulic medium that viscosity is smaller as water, sealing problem can be solved too, realize good sealability.
Description
Technical field
The utility model relates to a kind of leak free dydraulic shock absorber.
Background technique
In daily production work, oil-pressure damper is widely used, but these dydraulic shock absorbers have a shortcoming, there is certain leakage problem exactly, both pollution was caused to environment, waste the energy again, therefore, the sealing problem solving these hydraulic pressure installation is particularly important.
Summary of the invention
It is simple that the purpose of this utility model is to provide a kind of structure, safe and reliable, the dydraulic shock absorber of good seal performance, to solve the leakage problem that current dydraulic shock absorber exists.
For achieving the above object, the utility model provides a kind of leak free dydraulic shock absorber, comprise interior outer cylinder body, inner cylinder body inner chamber is provided with piston and piston rod, inner cylinder body is divided into two Seal cages by piston, it is characterized in that: two the flexible sealing linings arranging diameter different in the Seal cage of this side of piston rod form an annular seal space, also arrange a flexible sealing lining, make to form static sealing between cylinder body and piston in another Seal cage.
The utility model is by between cylinder body and piston, increase flexible sealing lining, this flexible sealing lining free-extension on piston movement direction, it and be the coupled condition that seals between cylinder body and piston, in the movement process of piston, make hydraulic medium relatively independent at one, work in the space of sealing, the generation of leakage phenomenon is avoided from root, achieve leak free working state, avoid the leakage problem at the position such as piston rod and cylinder body in traditional dydraulic shock absorber, even use the hydraulic medium that viscosity is smaller as water, sealing problem can be solved too, realize good sealability.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is linkage structure schematic diagram of flexible sealing lining in the present invention.
Embodiment
With reference to Fig. 1,1 is outer cylinder body, 3 is inner cylinder bodies, inner cylinder body inner chamber is provided with piston 6 and piston rod 11, and inner cylinder body is divided into two Seal cages by piston, arranges different two the flexible sealing linings 8,9 of diameter and form an annular seal space 12 in the Seal cage of this side of piston rod, a flexible sealing lining 5 is also set in another Seal cage 4, make to form static sealing between cylinder body and piston, respectively establish a valve 2,10 before and after inner cylinder body, piston is established a passage 7.
With reference to Fig. 2, in order to easy for installation, the cylinder body installing flexible sealing lining 5 or 8,9 place is made Split type structure, flexible sealing lining is installed between cylinder body separately and is fixedly connected with by bolt 13.
Claims (1)
1. a leak free dydraulic shock absorber, comprise interior outer cylinder body, inner cylinder body inner chamber is provided with piston and piston rod, inner cylinder body is divided into two Seal cages by piston, it is characterized in that: two the flexible sealing linings arranging diameter different in the Seal cage of this side of piston rod form an annular seal space, a flexible sealing lining is also set in another Seal cage, makes to form static sealing between cylinder body and piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420730159.4U CN204372027U (en) | 2014-11-26 | 2014-11-26 | Leak free dydraulic shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420730159.4U CN204372027U (en) | 2014-11-26 | 2014-11-26 | Leak free dydraulic shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204372027U true CN204372027U (en) | 2015-06-03 |
Family
ID=53328249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420730159.4U Expired - Fee Related CN204372027U (en) | 2014-11-26 | 2014-11-26 | Leak free dydraulic shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204372027U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500637A (en) * | 2014-11-26 | 2015-04-08 | 长春轨道客车股份有限公司 | Leak-free hydraulic shock absorber |
-
2014
- 2014-11-26 CN CN201420730159.4U patent/CN204372027U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500637A (en) * | 2014-11-26 | 2015-04-08 | 长春轨道客车股份有限公司 | Leak-free hydraulic shock absorber |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20201126 |