CN102954220A - Piston sealing part - Google Patents
Piston sealing part Download PDFInfo
- Publication number
- CN102954220A CN102954220A CN2011102469443A CN201110246944A CN102954220A CN 102954220 A CN102954220 A CN 102954220A CN 2011102469443 A CN2011102469443 A CN 2011102469443A CN 201110246944 A CN201110246944 A CN 201110246944A CN 102954220 A CN102954220 A CN 102954220A
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- CN
- China
- Prior art keywords
- ring
- check ring
- sealing part
- sealing matrix
- piston 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.)
- Pending
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a piston sealing part. The piston sealing part comprises a sealing part base, a first check ring and a second check ring, the sealing part base is arranged between the first check ring and the second check ring and is integrally connected with the first check ring and the second check ring, both the first check ring and the second check ring are inverted T-shaped, and the connecting edge width of each of the first check ring and the second check ring with the sealing part base accounts for one third to two fifths of the thickness of the sealing part base. The piston sealing part is simple in structure and capable of bearing higher pressure, and when a cylinder block is large in squeezing clearance and pressure, the check rings cannot be squeezed out and sheared, so that sealing effect is guaranteed.
Description
Technical field
The present invention relates to the rubber seal field, particularly relate to a kind of piston seal.
Background technique
Piston seal of the prior art, it includes the first back-up ring and the second back-up ring, and be arranged on Sealing matrix between the first back-up ring and the second back-up ring, because its first back-up ring, the second back-up ring are split type the connections with the Sealing matrix in the prior art, therefore the insufficient strength of back-up ring extrudes when cylinder body that the gap is large, back-up ring easily was extruded and shearing causes seal failure when pressure was larger.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of a kind of piston seal of good seal performance.
For achieving the above object, the present invention adopts following technological scheme:
A kind of piston seal, comprise Sealing matrix, the first back-up ring and the second back-up ring, described Sealing matrix is arranged between the first back-up ring and the second back-up ring, the Sealing matrix is integrated and is connected with the first back-up ring, the second back-up ring, described the first back-up ring, the second back-up ring are inverted L shape, and the fillet width of the first back-up ring and the 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 integrated and is connected with the first back-up ring, the second back-up ring, and the first back-up ring, the second back-up ring are inverted L shape, the fillet width of the first back-up ring and the second back-up ring and Sealing matrix accounts for 1/3～2/5 of Sealing matrix thickness, this structure has guaranteed that a kind of piston seal can bear higher pressure, when cylinder body extrude the gap large, when pressure is larger, back-up ring can not be extruded and shear the effect that has guaranteed sealing.
Beneficial effect of the present invention is: simple in structure, can bear higher pressure, when cylinder body extrude the gap large, when pressure is larger, back-up ring can not be extruded and shear the effect that has guaranteed sealing.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure, 1 is the Sealing matrix, and 21 is the first back-up ring, and 22 is the second back-up ring.
Embodiment
Below by specific embodiment, the present invention is done detailed description.
Referring to Fig. 1, a kind of piston seal, comprise Sealing matrix 1, the first back-up ring 21 and the second back-up ring 22, described Sealing matrix 1 is arranged between the first back-up ring 21 and the second back-up ring 22, Sealing matrix 1 is integrated and is connected with the first back-up ring 21, the second back-up ring 22, described the first back-up ring 21, the second back-up ring 22 are inverted L shape, and the first back-up ring 21 and the 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, the first back-up ring and the second back-up ring, described Sealing matrix is arranged between the first back-up ring and the second back-up ring, it is characterized in that: the Sealing matrix is integrated and is connected with the first back-up ring, the second back-up ring, described the first back-up ring, the second back-up ring are inverted L shape, and the fillet width of the first back-up ring and the 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 |
|---|---|---|---|
| CN2011102469443A CN102954220A (en) | 2011-08-26 | 2011-08-26 | Piston sealing part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102469443A CN102954220A (en) | 2011-08-26 | 2011-08-26 | Piston sealing part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102954220A true CN102954220A (en) | 2013-03-06 |
Family
ID=47763422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102469443A Pending CN102954220A (en) | 2011-08-26 | 2011-08-26 | Piston sealing part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102954220A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671927A (en) * | 2013-11-26 | 2014-03-26 | 山西浩业通用设备有限公司 | Composite type drum-shaped seal ring provided with L-shaped check rings |
| CN104455406A (en) * | 2014-12-06 | 2015-03-25 | 无锡高卓流体设备有限公司 | Piston sealing element |
| CN110107247A (en) * | 2019-05-30 | 2019-08-09 | 广州加士特密封技术有限公司 | A kind of slip seals structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1458110A (en) * | 1973-05-21 | 1976-12-08 | Dechavanne J | Sealing devices |
| CN201795043U (en) * | 2010-09-26 | 2011-04-13 | 山西泰宝密封有限公司 | Piston seal of trapezoidal sealing surface of L-shaped supporting ring |
| CN201810758U (en) * | 2010-10-13 | 2011-04-27 | 山西泰宝密封有限公司 | Piston seal for cone-shaped sealing surface of L-shaped support ring |
| CN102042209A (en) * | 2009-10-13 | 2011-05-04 | 罗伯特·博世有限公司 | Sealing arrangement for pump piston of piston pump |
| CN201836379U (en) * | 2010-11-04 | 2011-05-18 | 上海麦特密封件有限公司 | Drum-shaped sealing ring |
| CN201925462U (en) * | 2010-10-13 | 2011-08-10 | 山西泰宝密封有限公司 | Piston seal for strengthening toothed sealing surface of support ring |
| CN202188114U (en) * | 2011-08-26 | 2012-04-11 | 优泰科(苏州)密封技术有限公司 | Piston sealing element |
-
2011
- 2011-08-26 CN CN2011102469443A patent/CN102954220A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1458110A (en) * | 1973-05-21 | 1976-12-08 | Dechavanne J | Sealing devices |
| CN102042209A (en) * | 2009-10-13 | 2011-05-04 | 罗伯特·博世有限公司 | Sealing arrangement for pump piston of piston pump |
| CN201795043U (en) * | 2010-09-26 | 2011-04-13 | 山西泰宝密封有限公司 | Piston seal of trapezoidal sealing surface of L-shaped supporting ring |
| CN201810758U (en) * | 2010-10-13 | 2011-04-27 | 山西泰宝密封有限公司 | Piston seal for cone-shaped sealing surface of L-shaped support ring |
| CN201925462U (en) * | 2010-10-13 | 2011-08-10 | 山西泰宝密封有限公司 | Piston seal for strengthening toothed sealing surface of support ring |
| CN201836379U (en) * | 2010-11-04 | 2011-05-18 | 上海麦特密封件有限公司 | Drum-shaped sealing ring |
| CN202188114U (en) * | 2011-08-26 | 2012-04-11 | 优泰科(苏州)密封技术有限公司 | Piston sealing element |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671927A (en) * | 2013-11-26 | 2014-03-26 | 山西浩业通用设备有限公司 | Composite type drum-shaped seal ring provided with L-shaped check rings |
| CN104455406A (en) * | 2014-12-06 | 2015-03-25 | 无锡高卓流体设备有限公司 | Piston sealing element |
| CN110107247A (en) * | 2019-05-30 | 2019-08-09 | 广州加士特密封技术有限公司 | A kind of slip seals structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130306 |