CN202188114U - Piston sealing element - Google Patents
Piston sealing element Download PDFInfo
- Publication number
- CN202188114U CN202188114U CN2011203136556U CN201120313655U CN202188114U CN 202188114 U CN202188114 U CN 202188114U CN 2011203136556 U CN2011203136556 U CN 2011203136556U CN 201120313655 U CN201120313655 U CN 201120313655U CN 202188114 U CN202188114 U CN 202188114U
- Authority
- CN
- China
- Prior art keywords
- ring
- retaining ring
- base member
- sealing member
- sealing matrix
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 29
- 239000011159 matrix material Substances 0.000 claims description 21
- 230000000694 effects Effects 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Images
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- Sealing Devices (AREA)
Abstract
The utility model discloses a piston seal, including sealing member base member, first retaining ring and second retaining ring, the sealing member base member set up between first retaining ring and second retaining ring, sealing member base member and first retaining ring, second retaining ring be connected as an organic whole, first retaining ring, second retaining ring for falling the L type, the limit width of being connected of first retaining ring and second retaining ring and sealing member base member account for 1/3 ~ 2/5 of sealing member base member thickness, the utility model discloses simple structure can bear higher pressure, and when the extrusion clearance of cylinder body is great, pressure is great, the retaining ring can not extruded and sheared and guaranteed sealed effect.
Description
Technical field
The utility model relates to the rubber seal field, particularly relates to a kind of piston seal.
Background technique
Piston seal of the prior art; It includes first back-up ring and second back-up ring; And be arranged on the Sealing matrix between first back-up ring and second back-up ring; Because its first back-up ring, second back-up ring are split type the connections with the Sealing matrix in the existing technology, so the insufficient strength of back-up ring, when cylinder body extrude that the gap is big, pressure greatly the time back-up ring be extruded easily and shearing causes seal failure.
The model utility content
To the deficiency of existing technology, the utility model provides a kind of a kind of piston seal of good seal performance.
For realizing above-mentioned purpose, the utility model adopts following technological scheme:
A kind of piston seal; Comprise Sealing matrix, first back-up ring and second back-up ring; Described Sealing matrix is arranged between first back-up ring and second back-up ring; The Sealing matrix is that one is connected with first back-up ring, second back-up ring, and described first back-up ring, second back-up ring are inverted L shape, and the fillet width of first back-up ring and second back-up ring and Sealing matrix accounts for 1/3～2/5 of Sealing matrix thickness.
In technique scheme; Because the Sealing matrix is that one is connected with first back-up ring, second back-up ring; And first back-up ring, second back-up ring are inverted L shape, and the fillet width of first back-up ring and second back-up ring and Sealing matrix accounts for 1/3～2/5 of Sealing matrix thickness, and this structure has guaranteed that a kind of piston seal can bear higher pressure; When cylinder body extrude that the gap is big, when pressure is big, back-up ring can not be extruded and shear the effect that has guaranteed sealing.
The beneficial effect of the utility model is: simple in structure, can bear higher pressure, when cylinder body extrude that the gap is big, when pressure is big, back-up ring can not be extruded and shear the effect that has guaranteed sealing.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure, 1 is the Sealing matrix, and 21 is first back-up ring, and 22 is second back-up ring.
Embodiment
Through concrete embodiment, the utility model is done detailed description below.
Referring to Fig. 1; A kind of piston seal; Comprise Sealing matrix 1, first back-up ring 21 and second back-up ring 22, described Sealing matrix 1 is arranged between first back-up ring 21 and second back-up ring 22, and Sealing matrix 1 is connected for one with first back-up ring 21, second back-up ring 22; Described first back-up ring 21, second back-up ring 22 are inverted L shape, and first back-up ring 21 and second back-up ring 22 account for 1/3 of Sealing matrix 1 thickness with the fillet width of Sealing matrix 1.
Claims (1)
1. piston seal; Comprise Sealing matrix, first back-up ring and second back-up ring; Described Sealing matrix is arranged between first back-up ring and second back-up ring; It is characterized in that: the Sealing matrix is that one is connected with first back-up ring, second back-up ring, and described first back-up ring, second back-up ring are inverted L shape, and the fillet width of first back-up ring and second back-up ring and Sealing matrix accounts for 1/3～2/5 of Sealing matrix thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203136556U CN202188114U (en) | 2011-08-26 | 2011-08-26 | Piston sealing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203136556U CN202188114U (en) | 2011-08-26 | 2011-08-26 | Piston sealing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202188114U true CN202188114U (en) | 2012-04-11 |
Family
ID=45919566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203136556U Expired - Fee Related CN202188114U (en) | 2011-08-26 | 2011-08-26 | Piston sealing element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202188114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954220A (en) * | 2011-08-26 | 2013-03-06 | 优泰科(苏州)密封技术有限公司 | Piston sealing part |
-
2011
- 2011-08-26 CN CN2011203136556U patent/CN202188114U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954220A (en) * | 2011-08-26 | 2013-03-06 | 优泰科(苏州)密封技术有限公司 | Piston sealing part |
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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: 20120411 Termination date: 20140826 |
|
| EXPY | Termination of patent right or utility model |