CN203248706U - Piston - Google Patents
Piston Download PDFInfo
- Publication number
- CN203248706U CN203248706U CN 201320147427 CN201320147427U CN203248706U CN 203248706 U CN203248706 U CN 203248706U CN 201320147427 CN201320147427 CN 201320147427 CN 201320147427 U CN201320147427 U CN 201320147427U CN 203248706 U CN203248706 U CN 203248706U
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- CN
- China
- Prior art keywords
- piston
- wall
- utility
- model
- brake
- 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 - Lifetime
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a piston. A small oil inlet hole is formed in the piston, an annular groove is formed in the distribution circumference of the small oil inlet, and the distance between the bottom end of the annular groove and the outer wall of a piston main body is 0.20 mm. The piston has the advantages that when the piston of a brake main cylinder works and returns, brake liquid can be quickly complemented and flow back through the wall of the main cylinder and the annular groove of the piston, and accordingly the brake main cylinder can achieve rapid pressure building and relieving.
Description
Technical field
The utility model relates to the piston field, mainly is a kind of for the piston in the braking system brake master cylinder.
Background technique
At present, piston in the used braking system of our company in the brake master cylinder, as shown in Figure 1, oil-feed aperture end wall on it and piston main body outer wall are the same wall, when brake master cylinder piston work, return, brake fluid can not replenish by master cylinder casing wall and piston wall and reflux fast, makes brake master cylinder can not realize building soon the shortcoming of pressure, pressure release.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, and a kind of simple in structure, piston of being beneficial to the brake fluid rapid flow is provided.
The purpose of this utility model is finished by following technical solution, offers the oil-feed aperture on this piston, offers circular groove on the distribution circumference of this oil-feed aperture.
As preferably, bottom land end and the size-spacing between the piston main body outer wall of described circular groove are 0.20MM.
The beneficial effects of the utility model are: when brake master cylinder piston work, return, brake fluid can replenish by master cylinder casing wall and piston circular groove and reflux fast, makes brake master cylinder realize building soon the advantage of pressure, pressure release.
Description of drawings
Fig. 1 is the structural representation of existing piston.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the I place structure for amplifying schematic representation of Fig. 2.
Label in the accompanying drawing is respectively: 1, oil-feed aperture; 2, circular groove; 11, piston main body outer wall; 21, bottom land end.
Embodiment
Below in conjunction with accompanying drawing the utility model is done detailed introduction: shown in accompanying drawing 2,3, offer oil-feed aperture 1 on this piston of the utility model, offer circular groove 2 on the distribution circumference of this oil-feed aperture 1; The size-spacing that the bottom land end 21 of described circular groove 2 and piston main body outer wall are 11 is 0.20MM.
Working principle of the present utility model is: when brake master cylinder piston work, return, brake fluid flows in the circular groove 2, then flowing in the piston by oil-feed aperture 1, because bottom land end 21 and 11 of the piston main body outer walls of circular groove 2 has certain spacing, thus brake fluid can be fast circular groove 2 by master cylinder casing wall and piston replenish and reflux.
The utility model is not limited to above-mentioned mode of execution; no matter do any variation in its shape or material formation; every employing structural design provided by the utility model all is a kind of distortion of the present utility model, all should think within the utility model protection domain.
Claims (2)
1. a piston is characterized in that: offer oil-feed aperture (1) on this piston, offer circular groove (2) on the distribution circumference of this oil-feed aperture (1).
2. piston according to claim 1, it is characterized in that: the bottom land end (21) of described circular groove (2) and the size-spacing between piston main body outer wall (11) are 0.20MM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320147427 CN203248706U (en) | 2013-03-27 | 2013-03-27 | Piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320147427 CN203248706U (en) | 2013-03-27 | 2013-03-27 | Piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203248706U true CN203248706U (en) | 2013-10-23 |
Family
ID=49375145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320147427 Expired - Lifetime CN203248706U (en) | 2013-03-27 | 2013-03-27 | Piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203248706U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114408053A (en) * | 2022-01-27 | 2022-04-29 | 浙江万向系统有限公司 | Linear control movable main cylinder piston push rod assembly and transfer device thereof |
-
2013
- 2013-03-27 CN CN 201320147427 patent/CN203248706U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114408053A (en) * | 2022-01-27 | 2022-04-29 | 浙江万向系统有限公司 | Linear control movable main cylinder piston push rod assembly and transfer device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |