CN202301914U - Piston structure of brake main cylinder - Google Patents
Piston structure of brake main cylinder Download PDFInfo
- Publication number
- CN202301914U CN202301914U CN2011203704997U CN201120370499U CN202301914U CN 202301914 U CN202301914 U CN 202301914U CN 2011203704997 U CN2011203704997 U CN 2011203704997U CN 201120370499 U CN201120370499 U CN 201120370499U CN 202301914 U CN202301914 U CN 202301914U
- Authority
- CN
- China
- Prior art keywords
- piston
- piston body
- fluting
- annular groove
- main cylinder
- 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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- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
The utility model discloses a piston structure of a brake main cylinder, which comprises a piston body. A step annular groove is formed at the side wall of the piston body. A step edge at the upper part of the step annular groove is connected with an annular elastic flange. The bottom of the piston body is provided with a conical groove into the piston body. The piston structure of the brake main cylinder has the following advantages: simple structure, easy realization, capability of effectively prolonging service life of the piston, and improved sealing performance of the piston.
Description
Technical field
The utility model relates to the automobile braking master cylinder field, is specially a kind of brake master cylinder piston structure.
Background technique
Automobile braking master cylinder is the vitals in the brake system of car, and its effect is that the piston through brake master cylinder pushes fluid in the brake cylinder, to realize the braking brake in the running.Brake master cylinder comprises cylinder body, is provided with piston in the cylinder body.Have fluting in the piston of existing technology, mostly its fluting is step-like or the straight trough shape, and fluid was difficult for flowing out after getting into piston when the piston of this structure used, and residual fluid is prone to cause piston inner wall to be corroded, and reduces piston working life.
The model utility content
The utility model purpose provides a kind of brake master cylinder piston structure, to solve the problem that is prone to residual fluid in the existing technology in the brake master cylinder piston.
In order to achieve the above object, the technological scheme that the utility model adopted is:
A kind of brake master cylinder piston structure; Include piston body; It is characterized in that: said piston body sidewall forms the step annular groove, and the step edge on said step annular groove top is connected with the cyclic spring of downwarping extension along the limit, and said piston body bottom has fluting in piston body; Said fluting is the taper fluting, and the fluting diameter increases from top to bottom gradually.
The utility model is simple in structure, is easy to realize.Fluting in the piston is taper; And the fluting diameter increases from top to bottom gradually; The fluid that so not only helps in the piston flows out, and can improve the propelling movement ability of piston to fluid simultaneously, is provided with cyclic spring along the limit on the upper step limit of step annular groove; Cyclic spring extends along the limit downwarping and can be installed in the seal ring in the step annular groove, prevents that seal ring from rocking to cause the reduction of piston seal property.The utility model can effectively improve the working life of piston, has also improved the sealing of piston.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
As shown in Figure 1.A kind of brake master cylinder piston structure; Include piston body 1; Piston body 1 sidewall forms step annular groove 2, and the step edge on step annular groove 2 tops is connected with cyclic spring that downwarping extends along the limit 3, and piston body 1 bottom has fluting 4 in piston body 1; Fluting 4 increases for taper fluting, 4 diameters of slotting from top to bottom gradually.
Claims (1)
1. brake master cylinder piston structure; Include piston body; It is characterized in that: said piston body sidewall forms the step annular groove, and the step edge on said step annular groove top is connected with the cyclic spring of downwarping extension along the limit, and said piston body bottom has fluting in piston body; Said fluting is the taper fluting, and the fluting diameter increases from top to bottom gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203704997U CN202301914U (en) | 2011-09-30 | 2011-09-30 | Piston structure of brake main cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203704997U CN202301914U (en) | 2011-09-30 | 2011-09-30 | Piston structure of brake main cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202301914U true CN202301914U (en) | 2012-07-04 |
Family
ID=46370813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203704997U Expired - Fee Related CN202301914U (en) | 2011-09-30 | 2011-09-30 | Piston structure of brake main cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202301914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763769A (en) * | 2015-04-14 | 2015-07-08 | 常州峰蓝汽车附件有限公司 | Wear-resistance piston |
-
2011
- 2011-09-30 CN CN2011203704997U patent/CN202301914U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763769A (en) * | 2015-04-14 | 2015-07-08 | 常州峰蓝汽车附件有限公司 | Wear-resistance piston |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20120930 |