CN2853531Y - Vehicle vacuum booster - Google Patents
Vehicle vacuum booster Download PDFInfo
- Publication number
- CN2853531Y CN2853531Y CN 200520010377 CN200520010377U CN2853531Y CN 2853531 Y CN2853531 Y CN 2853531Y CN 200520010377 CN200520010377 CN 200520010377 CN 200520010377 U CN200520010377 U CN 200520010377U CN 2853531 Y CN2853531 Y CN 2853531Y
- Authority
- CN
- China
- Prior art keywords
- vacuum booster
- booster
- casing
- down bolt
- front case
- 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
Links
Landscapes
- Braking Systems And Boosters (AREA)
Abstract
The utility model discloses a vacuum booster used in mobiles with of a single diaphragm type structure, the booster mainly comprises a front casing, a back casing, a diaphragm, a valve module, a construction bolt and a handspike, the improved points are in that the installation manner of the construction bolt is designed to through-type, that the bolt runs through the front casing to the back casing of the vacuum booster to make all external force to the vacuum booster beared by two bolts. The construction bolts strengthen the rigidity of the casing of the vacuum booster much, downsize the deformation when the booster is stressed, the vacuum booster can utilize thinner casing materials without influencing the rigidity, satisfy the convenience for fitting and maintaining, reduce the manufacture cost, lower the weight of the booster.
Description
Technical field
The utility model belongs to the brake system of car technology, is specifically related to a kind of automobile vacuum booster.
Background technology
The hold-down bolt of the vacuum booster that uses on original automobile is non-penetration type, for the housing that guarantees vacuum booster has enough strength and stiffness, therefore need to select thicker case material, not only increase manufacturing cost, also increased the weight of product, the assembling of product and maintenance are also inconvenient in addition.
Summary of the invention
The purpose of this utility model is to provide a kind of automobile vacuum booster assembly at the deficiency of prior art existence, makes vacuum booster under the situation of using thin case material, and enough strength and stiffness are also arranged.
This automobile-used vacuum booster is the monofilm chip, mainly comprises front case, rear housing, diaphragm, valve module, hold-down bolt and push rod.Improvement of the present utility model is that the mounting means with hold-down bolt is designed to penetration type, being hold-down bolt is through to rear housing by the front case of vacuum booster, all external force of vacuum booster are mainly born by two bolts, this hold-down bolt increases the rigidity of vacuum booster housing greatly, reduced the distortion when servo-unit is stressed, vacuum booster can use thin case material and not influence its rigidity.
In addition, hold-down bolt is increasing the foam seal pad with the body contact place, makes its sealing reliable.
The utility model has the advantages that the housing of vacuum booster can reach enough strength and stiffness, has reduced manufacturing cost, has alleviated product weight under the situation with thin case material, assembling and maintenance are all more convenient.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Referring to Fig. 1, vacuum booster is the monofilm chip, and major part has front case 2, rear housing 4, diaphragm 3, valve module 8, hold-down bolt 5 and push rod 7.Wherein valve module 8 and diaphragm 3 are installed in front case 2 and the housing of rear housing 4 in conjunction with formation, and be connected with exterior push rod 7, brake vacuum interface tube 1 is arranged at the bottom of front case 2, servo-unit push rod 7 is connected with the brake pedal arm, and the structural relation of above-mentioned parts is identical with existing monofilm chip vacuum booster.Improvement of the present utility model is: the hold-down bolt 5 that has adopted one or two penetration type, front case 2 by vacuum booster runs through straight rear housing 4, both are connected, the suffered external force of vacuum booster is just mainly born by two penetration type bolts 5 like this, the rigidity of vacuum booster housing just increases greatly, has reduced the distortion when servo-unit is stressed.Simultaneously, hold-down bolt 5 has increased foam seal pad 6 with the body contact place, makes sealing reliable.
Claims (2)
1, automobile-used vacuum booster, comprise front case, rear housing, diaphragm, valve module, hold-down bolt and push rod, wherein valve module and diaphragm are installed in front case and the housing of rear housing in conjunction with formation, and be connected with exterior push rod, brake vacuum interface tube (1) is arranged at the bottom of front case, and servo-unit push rod (7) is connected with the brake pedal arm; It is characterized in that: described hold-down bolt adopts the penetration type mounting structure, and promptly hold-down bolt is through to rear housing by the front case of vacuum booster.
2, automobile-used vacuum booster according to claim 1 is characterized in that: in the junction of described hold-down bolt and vehicle body the foam seal pad is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010377 CN2853531Y (en) | 2005-11-23 | 2005-11-23 | Vehicle vacuum booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010377 CN2853531Y (en) | 2005-11-23 | 2005-11-23 | Vehicle vacuum booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2853531Y true CN2853531Y (en) | 2007-01-03 |
Family
ID=37580160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520010377 Expired - Fee Related CN2853531Y (en) | 2005-11-23 | 2005-11-23 | Vehicle vacuum booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2853531Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104349954A (en) * | 2012-05-31 | 2015-02-11 | 罗伯特·博世有限公司 | Vacuum brake booster having tubes through which attachment screws are to pass, and method for manufacturing same |
-
2005
- 2005-11-23 CN CN 200520010377 patent/CN2853531Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104349954A (en) * | 2012-05-31 | 2015-02-11 | 罗伯特·博世有限公司 | Vacuum brake booster having tubes through which attachment screws are to pass, and method for manufacturing same |
| US9663087B2 (en) | 2012-05-31 | 2017-05-30 | Robert Bosch Gmbh | Vacuum brake booster having tubes through which attachment screws pass and method for realizing same |
| CN104349954B (en) * | 2012-05-31 | 2017-10-20 | 罗伯特·博世有限公司 | Negative pressure servo brakes and its manufacture method with fixing screws tube channel |
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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: 20070103 Termination date: 20121123 |