CN202833777U - Automobile hydraulic brake master cylinder - Google Patents
Automobile hydraulic brake master cylinder Download PDFInfo
- Publication number
- CN202833777U CN202833777U CN 201220316420 CN201220316420U CN202833777U CN 202833777 U CN202833777 U CN 202833777U CN 201220316420 CN201220316420 CN 201220316420 CN 201220316420 U CN201220316420 U CN 201220316420U CN 202833777 U CN202833777 U CN 202833777U
- Authority
- CN
- China
- Prior art keywords
- piston
- sleeve
- hydraulic brake
- brake master
- automobile hydraulic
- 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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- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
The utility model relates to an automobile hydraulic brake master cylinder which comprises a cylinder body. A first piston and a second piston are arranged in the cylinder body. The first piston is provided with a sleeve which is fixedly connected with the first piston through an oval wire snap ring. Due to the fact that a shaft and the sleeve are fixed by the oval wire snap ring, safety performance is improved, and assembling process is effectively simplified. The second piston removes the sleeve, and thereby diameter of the piston is enlarged and the assembling process is simplified. The first piston is sealed by a lip-shaped sealing ring, and thereby leakage phenomenon caused by an O-shaped sealing ring is avoided and foreign objects are prevented from intruding into the shaft.
Description
Technical field
The utility model relates to the hydraulic vehicle braking element, relates in particular to a kind of automobile hydraulic brake master.
Background technique
Flourish along with automotive industry, as the hydraulic braking element of automobile chassis important spare part towards lightweight, efficient is high, the new material new process new technology direction of more reliable performance further develops.Simultaneously, demand is increasing, and description is also got over various.
Automobile hydraulic brake master is the important component part of hydraulic vehicle braking, yet automobile hydraulic brake master is owing to adopt the stamping part riveting to fix sleeve and axle in assembly process, cause in the assembling not only operation easier large and to be prone to riveting control improper, cause reject many.And existing automobile hydraulic brake master adopts O shape rubber seal to seal, and Seepage just occurs easily.
In application number was 96221811.1 valve piston hydraulic brake master cylinder patent of invention, its first piston, the second piston all adopted sleeve, and with pin sleeve and axle are fixed, and this just causes in assembly process very loaded down with trivial details.
Summary of the invention
The utility model provides a kind of structure that can effectively reduce its degree-of-difficulty factor for the problems such as operation easier is large in the hydraulic brake master equipment process.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals: automobile hydraulic brake master comprises cylinder body, cylinder body comprises first piston, the second piston, first piston is provided with sleeve, and sleeve is fixedly connected with by the oval wire snap ring with first piston.First piston adopts the oval wire snap ring can make assembly process simple, and is convenient, and as long as outer shroud is inserted in just automatically blocks, and compares with pin to connect more quick, safety; The second piston is removed sleeve, increases diameter, also can simplify assembling.
As preferably, described first piston adopts lip-type packing, can effectively reduce Seepage with lip-type packing, and can protect axle to avoid the infringement of foreign object.
The utility model adopts technique scheme, has significant technique effect: at first, first piston is by adopting steel wire clamping ring stationary axle and sleeve, can improve Safety performance, the more important thing is and effectively to simplify assembly process that secondly, the second piston adopts the lip-type packing sealing, the Seepage that can avoid O-ring seals to bring, and can stop foreign object to invade axle.
Description of drawings
Fig. 1 is structural drawing of the present utility model;
The toponym that each number designation refers in the above accompanying drawing is as follows: 1-cylinder body, 11-first piston, 12-the second piston, 13-lip-type packing, 14-sleeve, 15-oval wire snap ring.
Embodiment
Below in conjunction with figure and embodiment the utility model is further elaborated:
The utility model comprises cylinder body 1, and cylinder body 1 comprises first piston 11, the second pistons 12, and first piston 11 is provided with sleeve 14, and sleeve 14 is fixedly connected with by oval wire snap ring 15 with first piston 11.First piston adopts the oval wire snap ring can make assembly process simple, and is convenient.
A, idle stroke: be not more than 3mm;
B, return interval: be no more than 1.5s;
C, sealability: system the design Maximum operating pressure under, voltage stabilizing 30s, each brake chamber fluid pressure drop is not more than 0.3mPa;
D, cryogenic property: under-40 ℃ working environment, should be able to normally move;
M; High-temperature behavior: under 120 ℃ operating conditions, should be able to work;
E, withstand voltage properties: system must not have unusual under the condition of the Maximum operating pressure 130% of design.
In a word, the above only is preferred embodiment of the present utility model, and all equalizations of doing according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (2)
1. automobile hydraulic brake master, comprise cylinder body (1), it is characterized in that, be provided with first piston (11) and the second piston (12) in the described cylinder body (1), first piston (11) is provided with sleeve (14), and sleeve (14) is fixedly connected with by oval wire snap ring (15) with first piston (11).
2. a kind of automobile hydraulic brake master according to claim 1 is characterized in that, described first piston (11) adopts lip-type packing (13) sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220316420 CN202833777U (en) | 2012-07-03 | 2012-07-03 | Automobile hydraulic brake master cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220316420 CN202833777U (en) | 2012-07-03 | 2012-07-03 | Automobile hydraulic brake master cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833777U true CN202833777U (en) | 2013-03-27 |
Family
ID=47945489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220316420 Expired - Lifetime CN202833777U (en) | 2012-07-03 | 2012-07-03 | Automobile hydraulic brake master cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833777U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109844342A (en) * | 2016-10-27 | 2019-06-04 | 舍弗勒技术股份两合公司 | Actuator and torque for controlled clutch transmit system |
-
2012
- 2012-07-03 CN CN 201220316420 patent/CN202833777U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109844342A (en) * | 2016-10-27 | 2019-06-04 | 舍弗勒技术股份两合公司 | Actuator and torque for controlled clutch transmit system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |