CN2163904Y - Self-sealing device - Google Patents
Self-sealing device Download PDFInfo
- Publication number
- CN2163904Y CN2163904Y CN 93200322 CN93200322U CN2163904Y CN 2163904 Y CN2163904 Y CN 2163904Y CN 93200322 CN93200322 CN 93200322 CN 93200322 U CN93200322 U CN 93200322U CN 2163904 Y CN2163904 Y CN 2163904Y
- Authority
- CN
- China
- Prior art keywords
- sealing
- hydrocylinder
- hydraulic cylinder
- oil hydraulic
- sealing device
- 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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- Sealing Devices (AREA)
Abstract
The utility model relates to an enginery hydrocylinder reciprocating sealing device which is capable of solving the leakage problem caused by abrasion, scratching and peeling-off of plating on the inner wall of a hydrocylinder, which can not be solved by a current sealing part. Because the sealing device is provided with a liquid storing groove and an arc sealing surface. The pressure in the hydrocylinder automatically presses a sealing ring, which causes the surface with low pressure to be appressed with the sealing surface of the hydrocylinder to seal.
Description
The utility model relates to a kind of mechanical oil hydraulic cylinder reciprocating sealing device, especially can make part scrap oil hydraulic cylinder and come back to life.
Though the hydraulic seal of using utilizes the pressure compensation principle to seal at present, because sealing surface is a plane sealing, and assembling and processed complex, be difficult to reach design objective, therefore can not reach desirable sealing effect.See utility model patent for details No. 88214743.9.
The purpose of this utility model is to solve oil hydraulic cylinder reciprocating movement sealing leakage problem.It not only is suitable for new oil hydraulic cylinder, and also oil hydraulic cylinder inner wall abrasion, scuffing, coating being come off especially has certain effect that remedies, and has played the overhaul of minimizing oil hydraulic cylinder and has scrapped quantity, fully solves leakage problems.
The purpose of this utility model is achieved in that storage liquid groove in the rubber seal of surperficial arc, communicate with liquid in the oil hydraulic cylinder is porose.When oil hydraulic cylinder internal force increased, the expansion by storage liquid groove increased compression seal cushion rubber arcuate surface gradually, forms the result who fits tightly with the oil hydraulic cylinder inwall, makes it to reach sealing purpose.
When the oil hydraulic cylinder internal pressure reduces, rubber seal is also shunk synchronously automatically to the pressure of oil hydraulic cylinder, delay the rubber plastic deformation like this, reduced the Sealing frictional resistance simultaneously, so can fully satisfy the problem that prop drawing speed is had requirement as mine individual hydraulic prop.
Owing to adopt such scheme, can have easy processing simple in structure.Assembling only gets final product one-time-reach-place for rubber seal is inserted in the seal arrangement metal frame.
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is the longitudinal section tectonic maps.
Among the figure: (1) metal frame; (2) rubber seal; (3) arc sealing surface; (4) oil hydraulic cylinder; (5) storage liquid groove; (6) inlet opening.
In the drawings, metal frame (1) is supporting rubber seal (2), and liquid enters in the storage liquid groove (5) by inlet opening (6), reach the purpose of compressing rubber seal ring (2), arc sealing surface (3) is outwards expanded, be close to oil hydraulic cylinder (4) inner sealing surface, reach sealing purpose.
Claims (1)
- A kind of self-service seal arrangement is characterized in that: metal frame (1) is supporting rubber seal (2), and liquid enters in the storage liquid groove (5) by inlet opening (6), and arc sealing surface (3) outwards expands, and is close to oil hydraulic cylinder (4) inner sealing surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93200322 CN2163904Y (en) | 1993-01-09 | 1993-01-09 | Self-sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93200322 CN2163904Y (en) | 1993-01-09 | 1993-01-09 | Self-sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2163904Y true CN2163904Y (en) | 1994-05-04 |
Family
ID=33785115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93200322 Expired - Fee Related CN2163904Y (en) | 1993-01-09 | 1993-01-09 | Self-sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2163904Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100520125C (en) * | 2005-02-06 | 2009-07-29 | 张革 | Energized piston seal ring |
| CN103542219A (en) * | 2013-09-25 | 2014-01-29 | 沈阳建筑大学 | Self-operated sealing sleeve compensator |
| CN108756826A (en) * | 2018-07-23 | 2018-11-06 | 西安石油大学 | A kind of reducing self-operated type water pumping gas production plunger |
| CN110307421A (en) * | 2019-07-11 | 2019-10-08 | 万新 | Composite connecting pipe |
-
1993
- 1993-01-09 CN CN 93200322 patent/CN2163904Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100520125C (en) * | 2005-02-06 | 2009-07-29 | 张革 | Energized piston seal ring |
| CN103542219A (en) * | 2013-09-25 | 2014-01-29 | 沈阳建筑大学 | Self-operated sealing sleeve compensator |
| CN108756826A (en) * | 2018-07-23 | 2018-11-06 | 西安石油大学 | A kind of reducing self-operated type water pumping gas production plunger |
| CN110307421A (en) * | 2019-07-11 | 2019-10-08 | 万新 | Composite connecting pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: WANG KEFENG TO: XIJIAO FLUID SEAL INSTITUTE, HAIDIAN DISTRICT, BEIJING |
|
| CP03 | Change of name, title or address |
Address after: 100081, Haidian District West Village Tong Tong grave No. 37 Patentee after: Beijing Haidian District western suburbs fluid seal Research Institute Patentee before: Wang Kefeng |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |