CN201144796Y - Air cylinder piston - Google Patents
Air cylinder piston Download PDFInfo
- Publication number
- CN201144796Y CN201144796Y CNU2008200280568U CN200820028056U CN201144796Y CN 201144796 Y CN201144796 Y CN 201144796Y CN U2008200280568 U CNU2008200280568 U CN U2008200280568U CN 200820028056 U CN200820028056 U CN 200820028056U CN 201144796 Y CN201144796 Y CN 201144796Y
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder
- wall edge
- wall
- cylinder piston
- 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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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a cylinder piston that comprises a piston body (2). A wall edge (1) is arranged surrounding the piston body (2), and is used for replacing a sealing ring. When the piston works, air can be used for expanding the wall edge (1) and tightly contacts the cylinder body, so as to guarantee the sealing performance between the piston and the cylinder body; the wall edge (1) is integrated with the piston body (2); the sealing effects are excellent; no problems appear in the installation; the structure simplifies the structure and the operation, reduces the cost, and leads to excellent working stability. Simultaneously, the piston body (2) and the wall edge (1) are both made of polyformaldehyde which is corrosion resistant material; thus the cylinder piston has the advantages of excellent corrosion resistance and long service life.
Description
Technical field
The utility model relates to a kind of cylinder piston.
Background technique
The sealing of existing cylinder piston and cylinder seals by seal ring, adding seal ring itself is in order to solve the sealing problem of cylinder piston and cylinder, but not only to guarantee the sealing of cylinder piston and seal ring after adding seal ring, also to guarantee the sealing of cylinder and seal ring, all can cause gas leakage no matter the sealing of which link is bad, therefore the mode of structure that adds seal ring, increased the link that gas may be revealed on the contrary, its structure is very unreasonable, installs also more complicated, and the existing simultaneously seal ring that is adopted mostly is that rubber is made, not corrosion-resistant, in case be corroded, just need to change seal ring, use very inconvenience.
The model utility content
The above-mentioned technical problem of the utility model for existing in the solution background technique, and provide a kind of corrosion-resistant, the cylinder piston of good sealing effect.
Technical solution of the present utility model is: the utility model is a kind of cylinder piston, comprises piston only, it is characterized in that: be surrounded with the wall edge around the described piston only.
Above-mentioned wall is spent greater than 90 degree and less than 180 along the angle a with piston only.
The outer diameter on above-mentioned wall edge is greater than the outer diameter of piston only.
The material on above-mentioned piston only and wall edge all adopts polyoxymethylene.
The piston only of the existing cylinder of the utility model is provided with the wall edge, by wall along replacing seal ring, in the pistons work process, make wall along expanding and closely contacting, to guarantee the sealability between piston and cylinder block with cylinder block by gas, wall is along being structure as a whole with piston only, good sealing effect, and do not have installation question, simplify the structure and operating process, reduced cost, good operating stability.Piston only of the present utility model and wall have excellent corrosion resisting performance, long service life along all adopting the anticorrosive material polyoxymethylene to be made simultaneously.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Referring to Fig. 1, wall of the present utility model is along 1 around an end that is positioned at the cylinder inside cavity that is arranged on piston only 2, wall along 1 with the angle of piston only 2 greater than 90 degree and less than 180 degree, the outer diameter of wall along 1 is greater than the outer diameter of piston only 2.
In the piston motion process, gas can enter along 1 from wall, and at this moment the circumferential section of wall along 1 will expand, thereby makes wall closely contact with cylinder body along 1, guarantees the good sealing in the piston motion process.
Claims (4)
1, a kind of cylinder piston comprises piston only, it is characterized in that: be surrounded with the wall edge around the described piston only.
2, cylinder piston according to claim 1 comprises piston only, it is characterized in that: described wall is spent greater than 90 degree and less than 180 along the angle a with piston only.
3, cylinder piston according to claim 1 and 2 is characterized in that: the outer diameter on described wall edge is greater than the outer diameter of piston only.
4, cylinder piston according to claim 3 is characterized in that: the material on described piston only and wall edge all adopts polyoxymethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200280568U CN201144796Y (en) | 2008-01-08 | 2008-01-08 | Air cylinder piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200280568U CN201144796Y (en) | 2008-01-08 | 2008-01-08 | Air cylinder piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201144796Y true CN201144796Y (en) | 2008-11-05 |
Family
ID=40081673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200280568U Expired - Fee Related CN201144796Y (en) | 2008-01-08 | 2008-01-08 | Air cylinder piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201144796Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104853967A (en) * | 2012-12-13 | 2015-08-19 | 罗伯特·博世有限公司 | Pump seal for a piston pump of a vehicle braking system |
-
2008
- 2008-01-08 CN CNU2008200280568U patent/CN201144796Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104853967A (en) * | 2012-12-13 | 2015-08-19 | 罗伯特·博世有限公司 | Pump seal for a piston pump of a vehicle braking system |
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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: 20081105 Termination date: 20160108 |