CN202851754U - Back brake caliper piston - Google Patents
Back brake caliper piston Download PDFInfo
- Publication number
- CN202851754U CN202851754U CN 201220533137 CN201220533137U CN202851754U CN 202851754 U CN202851754 U CN 202851754U CN 201220533137 CN201220533137 CN 201220533137 CN 201220533137 U CN201220533137 U CN 201220533137U CN 202851754 U CN202851754 U CN 202851754U
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- CN
- China
- Prior art keywords
- piston
- brake caliper
- hole
- piston hole
- caliper 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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Abstract
The utility model provides a back brake caliper piston which comprises a piston body and a piston hole on the piston body, wherein the piston hole is step-shaped and comprises a wide portion a narrow portion, an air exhaust hole is formed between the narrow portion and the piston body in a penetrating mode, the air exhaust hole is used for keeping balance of internal pressure and external pressure of the piston hole, and a tooth form structure is arranged on the end face of the piston hole, and is used for keeping balance of the internal pressure and the external pressure of the piston hole. According to the technical scheme, the air exhaust hole is arranged on the back brake caliper piston, and can keep balance of the internal pressure and the external pressure of the piston hole. Meanwhile, the tooth form structure is arranged on the end face of the piston hole, and can ensure that the back brake caliper piston is incapable of adsorbing a brake disc, and therefore reliability of the back brake caliper piston is improved.
Description
Technical field
The utility model relates to a kind of piston, particularly a kind of rear brake caliper piston.
Background technique
Piston is the heart of motor car engine, bears mechanical load and the heat load of alternation, is one of worst key components and parts of operating conditions in the motor.The function of piston is to bear gas pressure, and passes to connecting rod by wrist pin and drive and to make crankshaft rotating, piston head or the constituent element of firing chamber.Piston generally is divided into head, skirt section and three parts of piston pin boss.
The brake system of automobile comprises clamp, the rear brake caliper piston that cooperates with clamp and front brake caliper piston.The end face of existing rear brake caliper piston with the brake disc adhesive, causes brake system malfunctioning sometimes.
Therefore, in carrying out the invention process, the inventor finds that there are the following problems at least in the prior art: existing rear brake caliper piston sometimes with the brake disc adhesive, cause brake system malfunctioning.
Summary of the invention
In view of this, the utility model embodiment has proposed the higher rear brake caliper piston of a kind of unfailing performance.
For solving the problems of the technologies described above, the purpose of the embodiment of the invention is achieved through the following technical solutions:
The utility model provides a kind of rear brake caliper piston, comprise the piston hole on piston only and the piston only, described piston hole is step type, comprise wide and narrow section, be equipped with an exhaust port between described narrow and the piston only, be used for guaranteeing the balance of piston hole external and internal pressure, the end face of described piston hole is provided with tooth-shape structure, is used for guaranteeing the balance of piston hole external and internal pressure.
Preferably, be provided with circular groove on described wide, be used for installing transmitting assemblies.
The technological scheme that provides by the utility model, at rear brake caliper piston exhaust port is set, can guarantee the balance of the external and internal pressure of piston hole, simultaneously, piston hole end face at rear brake caliper piston arranges tooth-shape structure, can guarantee that rear brake caliper piston can be not and the brake disc adhesive, therefore improve the reliability of rear brake caliper piston.
Description of drawings
Fig. 1 is the sectional view of brake caliper piston behind the utility model;
Fig. 2 is the left view of brake caliper piston behind the utility model.
Embodiment
The utility model embodiment provides a kind of rear brake caliper piston.
For making the technical solution of the utility model clearer, referring to accompanying drawing and enumerate embodiment, the present invention is described in more detail.
See also Fig. 1, be the sectional view of brake caliper piston behind the utility model.
Described rear brake caliper piston comprises the piston hole 1 on piston only 2 and the piston only, and described piston hole 1 is step type.
Described piston hole 1 is divided into wide 11 and narrow 12.Be provided with circular groove 111 on described wide 11, be used for guarantee that piston is connected connection with transmitting assemblies.Be equipped with an exhaust port 121 between described narrow 12 and the piston only 2, be used for guaranteeing the balance of piston hole 12 external and internal pressures.
Please continue to consult Fig. 2, be the left view of brake caliper piston behind the utility model.The end face 3 of described piston hole 2 is provided with tooth-shape structure, can guarantee that rear brake caliper piston can be not and the brake disc adhesive.
Compared with prior art, by at rear brake caliper piston exhaust port being set, can guarantee the balance of the external and internal pressure of piston hole, simultaneously, piston hole end face at rear brake caliper piston arranges tooth-shape structure, can guarantee that rear brake caliper piston can be not and the brake disc adhesive, therefore improve the reliability of rear brake caliper piston.
More than rear brake caliper piston that the utility model embodiment is provided be described in detail, used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand the technological scheme that the utility model discloses; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (2)
1. brake caliper piston after a kind, it is characterized in that, comprise the piston hole on piston only and the piston only, described piston hole is step type, comprise wide and narrow section, be equipped with an exhaust port between described narrow and the piston only, be used for guaranteeing the balance of piston hole external and internal pressure, the end face of described piston hole is provided with tooth-shape structure, is used for guaranteeing the balance of piston hole external and internal pressure.
2. rear brake caliper piston according to claim 1 is characterized in that, is provided with circular groove on described wide, is used for installing transmitting assemblies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220533137 CN202851754U (en) | 2012-10-18 | 2012-10-18 | Back brake caliper piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220533137 CN202851754U (en) | 2012-10-18 | 2012-10-18 | Back brake caliper piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851754U true CN202851754U (en) | 2013-04-03 |
Family
ID=47982960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220533137 Expired - Fee Related CN202851754U (en) | 2012-10-18 | 2012-10-18 | Back brake caliper piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851754U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654543A (en) * | 2017-09-27 | 2018-02-02 | 台州大昌汽车部件有限公司 | A kind of caliper piston and its manufacturing process |
| CN110901604A (en) * | 2019-11-28 | 2020-03-24 | 武汉万向汽车制动器有限公司 | Disc type electronic central parking brake assembly |
-
2012
- 2012-10-18 CN CN 201220533137 patent/CN202851754U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654543A (en) * | 2017-09-27 | 2018-02-02 | 台州大昌汽车部件有限公司 | A kind of caliper piston and its manufacturing process |
| CN107654543B (en) * | 2017-09-27 | 2019-10-18 | 大昌汽车部件股份有限公司 | A kind of caliper piston and its manufacturing process |
| CN110901604A (en) * | 2019-11-28 | 2020-03-24 | 武汉万向汽车制动器有限公司 | Disc type electronic central parking brake assembly |
| CN110901604B (en) * | 2019-11-28 | 2022-01-07 | 武汉万向汽车制动器有限公司 | Disc type electronic central parking brake assembly |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20181018 |