CN206571887U - A kind of sealing device - Google Patents
A kind of sealing device Download PDFInfo
- Publication number
- CN206571887U CN206571887U CN201720222118.8U CN201720222118U CN206571887U CN 206571887 U CN206571887 U CN 206571887U CN 201720222118 U CN201720222118 U CN 201720222118U CN 206571887 U CN206571887 U CN 206571887U
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- skeleton
- oil cylinder
- seal groove
- 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
Links
Abstract
A kind of sealing device, including it is arranged on oil cylinder（4）In skeleton, on skeleton be provided with seal groove（2）, sealing ring is installed in seal groove（3）, it is characterized in that, the cell wall of seal groove side is to sealing ring（3）Compression direction tilt, inclined cell wall and oil cylinder（4）Inwall be in an acute angle.When the fluid in oil cylinder presses to sealing ring, deformation occurs in sealing ring, and its partial volume is extruded into acute angle, and pressure is bigger, sealing ring is extruded into that acute angle inner volume is more, increases the contact area of sealing ring and oil cylinder, is effectively improved sealing property.
Description
Technical field
The utility model is related to a kind of sealing device, and it includes skeleton and sealing ring, the sealing for oil cylinder.
Background technology
Sealing device is generally set, and sealing device is made up of skeleton and sealing ring, such as Fig. 1 institutes in the oil cylinder in damper
Show, sealing ring 3 is installed in the seal groove 2 of skeleton, realized by the elasticity of sealing ring and the inwall close contact of oil cylinder 4 close
Envelope；The rectangular cross-section of seal groove, the cell wall and oil cylinder of seal groove both sides is perpendicular, the contact due to sealing ring with oil cylinder inner wall
Face is smaller, and the pressure in oil cylinder can be fluctuated often, and leakage occurs when pressure is excessive.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of sealing device, when pressure is applied to installed in skeleton
On sealing ring when, sealing ring occur deformation and increase sealing surface, reach improve sealing property purpose.
The technical solution of the utility model is, a kind of sealing device, including the skeleton being arranged in oil cylinder 4, on skeleton
Provided with seal groove 2, sealing ring 3 is installed in seal groove, it is characterized in that, the cell wall of seal groove side is to the compression side of sealing ring 3
To inclination, the inwall of inclined cell wall and oil cylinder 4 is in an acute angle.
The beneficial effects of the utility model are, close when the fluid in oil cylinder such as nitrogen or hydraulic oil press to sealing ring
Deformation occurs in seal, and its partial volume is extruded into acute angle, and pressure is bigger, and sealing ring is extruded into acute angle inner volume
It is more, the contact area and closeness of contact of sealing ring and oil cylinder are increased, sealing property is effectively improved.
Brief description of the drawings
Fig. 1 is the schematic diagram of sealing device of prior art.
Fig. 2 is schematic diagram of sealing device of the present utility model.
Embodiment
In conjunction with brief description of the drawings embodiment of the present utility model.
A kind of sealing device is provided with seal groove 2, sealing as shown in Fig. 2 it includes being arranged on oil cylinder middle skeleton on skeleton
The cell wall of groove side is tilted to the compression direction of sealing ring 3, and the inwall of inclined cell wall and oil cylinder 4 is in an acute angle.
Seal groove on skeleton be set to the seal groove being referred to as on single groove skeleton 5, skeleton of one be set to two be referred to as it is double
The incline direction that cell wall is tilted in groove skeleton 1, double flute skeleton is opposite.
Using when single groove skeleton 5 be fixedly provided in the two ends of oil cylinder 4, double flute skeleton 1 is slidably arranged in oil cylinder
Portion；The side of double flute skeleton is gas such as nitrogen, and the opposite side of double flute skeleton is hydraulic oil.Oil pocket pressure increases during oil-feed, oil
The sealing ring of chamber both sides is squeezed deformation, and the partial volume of oil pocket both sides sealing circle enters acute angle area, increase sealing ring and oil
The contact of the inside wall of cylinder；Double flute skeleton is moved to air cavity simultaneously during oil-feed, and gas is compressed, the pressure increase of air cavity, air cavity two
The sealing ring of side is similarly subjected to crimp, and the partial volume of air cavity both sides sealing circle enters acute angle area, increase sealing ring and oil
The contact of the inside wall of cylinder；The pressure of oil pocket is bigger, and the deformation of sealing ring is also bigger, and contact of the sealing ring with oil cylinder is closer, significantly
Improve sealing property.
Angular range between the cell wall of seal groove side and the inwall of oil cylinder is 60 degree to 75 degree, can make sealing ring with it is sharp
Angular region is fully contacted.
Claims (4)
1. a kind of sealing device, including it is arranged on oil cylinder（4）In skeleton, on skeleton be provided with seal groove（2）, pacify in seal groove
Equipped with sealing ring（3）, it is characterized in that, the cell wall of seal groove side is to sealing ring（3）Compression direction tilt, inclined cell wall with
Oil cylinder（4）Inwall be in an acute angle.
2. a kind of sealing device according to claim 1, it is characterized in that, described acute angle scope 60 degree to 75 degree it
Between.
3. a kind of sealing device according to claim 1 or 2, it is characterized in that, the seal groove on skeleton is set to one.
4. a kind of sealing device according to claim 1 or 2, it is characterized in that, the seal groove on skeleton is set to two, and two is close
The direction that cell wall is tilted in sealing groove is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720222118.8U CN206571887U (en) | 2017-03-09 | 2017-03-09 | A kind of sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720222118.8U CN206571887U (en) | 2017-03-09 | 2017-03-09 | A kind of sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206571887U true CN206571887U (en) | 2017-10-20 |
Family
ID=60057429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720222118.8U Expired - Fee Related CN206571887U (en) | 2017-03-09 | 2017-03-09 | A kind of sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206571887U (en) |
-
2017
- 2017-03-09 CN CN201720222118.8U patent/CN206571887U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171020 Termination date: 20200309 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |