CN201882071U - Rubber diaphragm of automobile vacuum booster - Google Patents
Rubber diaphragm of automobile vacuum booster Download PDFInfo
- Publication number
- CN201882071U CN201882071U CN2010206680858U CN201020668085U CN201882071U CN 201882071 U CN201882071 U CN 201882071U CN 2010206680858 U CN2010206680858 U CN 2010206680858U CN 201020668085 U CN201020668085 U CN 201020668085U CN 201882071 U CN201882071 U CN 201882071U
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- China
- Prior art keywords
- vacuum booster
- diaphragm
- automobile vacuum
- operating surface
- rubber
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- 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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Abstract
The utility model discloses a rubber diaphragm of an automobile vacuum booster, which comprises a diaphragm operating surface, an upper sealing lip connected with the diaphragm operating surface, and an outer edge sealing lip. An annulus cylindrical bulge is arranged in the middle on the outer side of the diaphragm operating surface, and semi-cylindrical upper and lower sealing ribs are respectively arranged on upper and lower end surfaces of the outer edge sealing lip. As the annulus cylindrical bulge is arranged in the middle on the outer side of the diaphragm operating surface, the flexibility of a stress part of the diaphragm operating surface is greatly improved, and the service life of a product is prolonged; and as the semi-cylindrical upper and lower sealing ribs are additionally arranged on the upper and lower end surfaces of the outer edge sealing lip, the product can effectively seal an air chamber of the automobile vacuum booster during the long-term operation, thereby ensuring the operating efficiency of the air chamber of the automobile vacuum booster. The rubber diaphragm has a simple structure, low manufacture cost is and good use effect.
Description
Technical field
The utility model relates to a kind of vehicular spare parts, especially a kind of automobile vacuum booster diaphragm of rubber.
Background technology
The automobile vacuum booster diaphragm of rubber is to be used for brake system of car, works the full glue barrier film that transmits the pressure effect.Its function is that compressed-air actuated pressure is converted into mechanical thrust, plays the car brakeing effect.It is the power element of brake system of car, also is the important security personnel's part on the automobile.
Fast development along with auto-industry, people are more and more high to the demand of the speed of automobile and traveling comfort, therefore require the reaction agility of stopping distance, braking time and glancing impact to reach short, fast, clever, just require the performance of braking to improve greatly, vacuum booster is exactly to help chaufeur to improve the device of retro-speed, does not have servo-unit, and chaufeur is firmly bigger at glancing impact, increase the time of braking, thereby also just increased danger.There has been servo-unit greatly to improve braking performance of automobile, improved running safety, ride comfort, reduced life and property loss, increased economic efficiency.
At present, after the long-term use of orthodox car vacuum booster diaphragm of rubber, sealing property reduces, and the work efficiency of vacuum booster air chamber significantly reduces.In addition, traditional vacuum booster diaphragm of rubber, owing to the effect of high pressure, brute force, the diaphragm body repeated multiple times is back and forth overturn, and causes product to tear especially easily in the course of the work.The terms of settlement of prior art is to solve this problem by the quality that improves rubber, but such mode has not only increased productive costs, and the flexility that product shows in the course of the work is still relatively poor.
Summary of the invention
The purpose of this utility model is: a kind of automobile vacuum booster diaphragm of rubber is provided, and its leak tightness height, good, the long service life of flexility are to overcome the deficiencies in the prior art.
The utility model is achieved in that the automobile vacuum booster diaphragm of rubber, comprise the barrier film driving surface, with barrier film driving surface bonded assembly back seal lip and outer fringe seal lip, be provided with the projection of annulus column at the outer middle side part of barrier film driving surface, and be respectively equipped with semi-cylindrical back seal muscle and lower seal muscle on two inclined-planes up and down in outer rim seal lip.
Described projection is 8, between each projection for being spacedly distributed.
The radius of the annulus column of back seal muscle and lower seal muscle is R1～1.5mm.In the range of sizes of defined, seal automobile vacuum booster air chamber effectively, thus guaranteed the work efficiency of automobile vacuum booster air chamber.If less than 1mm, then sealing effectiveness is bad, if bad greater than 1.5mm barrier film and housing applying, the big braking effect that influences in gap.
Owing to adopted technique scheme, compared with prior art, the utility model adopts the structure that increases the projection of annulus column in the middle part of barrier film driving surface, and the elasticity of the force part of barrier film driving surface is significantly improved, and makes the longer service life of product; And on lower inclined plane on the outer rim seal lip, increased semi-cylindrical back seal muscle and lower seal muscle, made product in long-term work, also seal automobile vacuum booster air chamber effectively, thus guaranteed the work efficiency of automobile vacuum booster air chamber.The utility model is simple in structure, and cost of manufacture is cheap, and result of use is good.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is the I portion enlarged drawing of accompanying drawing 1;
Accompanying drawing 3 is the II portion enlarged drawing of accompanying drawing 1.
The specific embodiment
Embodiment of the present utility model: the structure of automobile vacuum booster diaphragm of rubber as shown in Figure 1, produce an existing automobile vacuum booster barrier film driving surface 1, with barrier film driving surface 1 bonded assembly back seal lip 2 and outer fringe seal lip 3, produce the projection 4 of 8 annulus columns that are spacedly distributed at the outer middle side part of barrier film driving surface 1, and produce semi-cylindrical back seal muscle 5 and lower seal muscle 6 respectively on two inclined-planes up and down in outer rim seal lip 3; Wherein back seal muscle 5 is 5mm with the distance on outer fringe seal lip 3 borders, and lower seal muscle 6 is 3mm with the distance on outer fringe seal lip 3 borders; The radius of back seal muscle 5 and lower seal muscle 6 is 1.2mm.
Owing to adopted the structure of projection 4, the elasticity of the force part of barrier film driving surface is significantly improved, to solve the wear problem between barrier film driving surface and the housing; And semi-cylindrical back seal muscle 5 and the lower seal muscle 6 on lower inclined plane on the outer rim seal lip 3, produced, make product in long-term work, also seal automobile vacuum booster air chamber effectively, thus the work efficiency of automobile vacuum booster air chamber guaranteed.The number of projection 4 can be selected according to actual conditions; The size of projection 4, back seal muscle 5 and lower seal muscle 6 also all can be adjusted according to the specific requirement of product.
Claims (3)
1. automobile vacuum booster diaphragm of rubber, comprise barrier film driving surface (1), with barrier film driving surface (1) bonded assembly back seal lip (2) and outer fringe seal lip (3), it is characterized in that: be provided with the projection (4) of annulus column at the outer middle side part of barrier film driving surface (1), and be respectively equipped with semi-cylindrical back seal muscle (5) and lower seal muscle (6) on two inclined-planes up and down in outer rim seal lip (3).
2. automobile vacuum booster diaphragm of rubber according to claim 1 is characterized in that: the projection (4) be 8, between each projection (4) for being spacedly distributed.
3. automobile vacuum booster diaphragm of rubber according to claim 1 is characterized in that: the radius of the annulus column of back seal muscle (5) and lower seal muscle (6) is R1～1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206680858U CN201882071U (en) | 2010-12-20 | 2010-12-20 | Rubber diaphragm of automobile vacuum booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206680858U CN201882071U (en) | 2010-12-20 | 2010-12-20 | Rubber diaphragm of automobile vacuum booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201882071U true CN201882071U (en) | 2011-06-29 |
Family
ID=44179609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206680858U Expired - Lifetime CN201882071U (en) | 2010-12-20 | 2010-12-20 | Rubber diaphragm of automobile vacuum booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201882071U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912617A (en) * | 2014-04-13 | 2014-07-09 | 福建亚南电机有限公司 | Pneumatic diaphragm used for dual-motor hybrid braking clutch |
| CN105313867A (en) * | 2014-07-31 | 2016-02-10 | 上海大陆汽车制动系统销售有限公司 | Vacuum booster and leather diaphragm thereof |
| CN109505898A (en) * | 2018-12-30 | 2019-03-22 | 宁波乔士橡塑有限公司 | Rail traffic high sealing, easy positioning brake chamber diaphragm |
-
2010
- 2010-12-20 CN CN2010206680858U patent/CN201882071U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912617A (en) * | 2014-04-13 | 2014-07-09 | 福建亚南电机有限公司 | Pneumatic diaphragm used for dual-motor hybrid braking clutch |
| CN103912617B (en) * | 2014-04-13 | 2016-03-02 | 福建亚南电机有限公司 | A kind of pneumatic diaphragm for double-motor hybrid brake coupling |
| CN105313867A (en) * | 2014-07-31 | 2016-02-10 | 上海大陆汽车制动系统销售有限公司 | Vacuum booster and leather diaphragm thereof |
| CN109505898A (en) * | 2018-12-30 | 2019-03-22 | 宁波乔士橡塑有限公司 | Rail traffic high sealing, easy positioning brake chamber diaphragm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Rubber diaphragm of automobile vacuum booster Effective date of registration: 20140521 Granted publication date: 20110629 Pledgee: Bank of Guiyang Limited by Share Ltd high tech branch Pledgor: Guizhou Jingzhong Rubber & Plastic Industry Co., Ltd. Registration number: 2014990000384 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110629 |
|
| CX01 | Expiry of patent term |