CN200948792Y - Vacuum booster - Google Patents
Vacuum booster Download PDFInfo
- Publication number
- CN200948792Y CN200948792Y CN 200620086464 CN200620086464U CN200948792Y CN 200948792 Y CN200948792 Y CN 200948792Y CN 200620086464 CN200620086464 CN 200620086464 CN 200620086464 U CN200620086464 U CN 200620086464U CN 200948792 Y CN200948792 Y CN 200948792Y
- Authority
- CN
- China
- Prior art keywords
- control valve
- valve body
- case assembly
- front case
- diaphragm
- 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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- Braking Systems And Boosters (AREA)
Abstract
The utility model discloses a vacuum booster which comprises a control valve body, a push rod for control valve and a plunger for control valve which are installed on the control valve body, a front case assembly fixed at the end of the control valve body, a back case assemble connected with the front case assembly, a control return diaphragm, a counter force disk, a diaphragm return spring, a push rod for main cylinder and a check valve which are mounted between the front case assembly and the back case assembly. The control return diaphragm and the front case assembly compose a front chamber and the control return diaphragm and the back front case assembly compose a back chamber. Two channels communicating the front and back chambers are positioned on the control valve body. The control valve body has two vent holes, when the push rod for the control valve moves forward to close the vacuum valve and then open the air valve, the air goes into the control valve body after purified by the filter element, then the air goes through the two vent holes into the back chamber, which improves the sensitivity of the booster. The device is of ultra-thin shape, which reduces the difficulty in allocating the inner space of the vehicle.
Description
Technical field
This novel evacuated servo-unit relates in particular to a kind of automobile-use vacuum booster.
Background technology
Vacuum booster in this area is that everybody knows altogether, promptly acting on power less on the brake pedal can be by the power of servo-unit output greater than several times of input forces, reach the power-assisted purpose, the present vacuum booster that exists, complex structure often, and adopt single air flue air inlet, and cause the servo-unit reaction time to lag behind, initial condition is not obvious.
Summary of the invention
Technical problem to be solved in the utility model provides simple in structure, can the application force of brake pedal more significantly be reflected on the power output, reaches quick power-assisted vacuum booster.
For achieving the above object, the technical solution of the utility model is: vacuum booster, comprise control valve body, be installed in control valve input rod and control cock plunger on the described control valve body, the tail end of described control valve body is installed with the front case assembly, and braking return diaphragm, counter-force dish, diaphragm return spring, master cylinder push rod, check valve are installed between the rear housing assembly of captiveing joint with described front case assembly, described front case assembly and the rear housing assembly; Braking return diaphragm and front case assembly are formed ante-chamber, are formed back cavity with the rear housing assembly; Two passages that can be communicated with ante-chamber and back cavity are arranged on the control valve body.
Owing to adopt technique scheme, vacuum booster, comprise control valve body, be installed in control valve input rod and control cock plunger on the described control valve body, the tail end of described control valve body is installed with the front case assembly, and braking return diaphragm, counter-force dish, diaphragm return spring, master cylinder push rod, check valve are installed between the rear housing assembly of captiveing joint with described front case assembly, described front case assembly and the rear housing assembly; Braking return diaphragm and front case assembly are formed ante-chamber, are formed back cavity with the rear housing assembly; Two passages that can be communicated with ante-chamber and back cavity are arranged on the control valve body; Control valve body is provided with two air extractor vents, when the control valve input rod reach, close the vacuum valve port, move forward again and when opening the air valve port, atmosphere enters control valve body after filtration is oozed in filter, fill back cavity fast through two pores simultaneously again, and this has improved the being quick on the draw property of servo-unit, the profile that also has super Pu has reduced the layout difficulty in the auto body.
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment.
The specific embodiment
As shown in drawings, vacuum booster, comprise control valve body 6, be installed in control valve input rod 1 and control cock plunger 7 on the described control valve body 6, the tail end of described control valve body 6 is installed with front case assembly 14, and braking return diaphragm 10, counter-force dish 12, diaphragm return spring 16, master cylinder push rod 13, check valve 15 are installed between the rear housing assembly 8 of captiveing joint with described front case assembly 14, described front case assembly 14 and the rear housing assembly 8; Braking return diaphragm 10 is formed ante-chamber 11, is formed back cavity 9 with rear housing assembly 8 with front case assembly 14; Two passages 5,17 that can be communicated with ante-chamber 11 and back cavity 9 are arranged on the control valve body.
Off working state, vacuum valve port 19 is opened, and air valve port 20 is closed, and is a chamber vacuum in the servo-unit assembly; Mode of operation, chaufeur adds brake pedal force makes control valve input rod 1 reach, closes vacuum valve port 19, and continuation moves forward and opens air valve port 20 again, form forward and backward two chambeies 11 and 8 in the assembly, atmosphere two pores on control valve body 6 are filled back cavity 8 rapidly, and along with atmosphere constantly enters back cavity 8, two chambeies, front and back form difference of pressure, under action of pressure, braking return diaphragm 10 is stressed and compression retracteding position spring 16 reaches drive master cylinder push rod 13 to move axially, thus output treadle effort at double; When cancelling treadle effort, return diaphragm 10 is subjected to pull back spring 16 effects and drives control valve body 6 rapid returns, and all get back to shown position again.
Vacuum booster from the above mentioned, simple in structure, can export and import treadle effort at double, and power-assisted is quick on the draw.
Claims (1)
1. vacuum booster, comprise control valve body (6), be installed in control valve input rod (1) and control cock plunger (7) on the described control valve body (6), the tail end of described control valve body (6) is installed with front case assembly (14), and braking return diaphragm (10), counter-force dish (12), diaphragm return spring (16), master cylinder push rod (13), check valve (15) are installed between the rear housing assembly (8) of captiveing joint with described front case assembly (14), described front case assembly (14) and the rear housing assembly (8); Braking return diaphragm (10) is formed ante-chamber (11), is formed back cavity (9) with rear housing assembly (8) with front case assembly (14); Two passages (5,17) that can be communicated with ante-chamber (11) and back cavity (9) are arranged on the control valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620086464 CN200948792Y (en) | 2006-07-05 | 2006-07-05 | Vacuum booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620086464 CN200948792Y (en) | 2006-07-05 | 2006-07-05 | Vacuum booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200948792Y true CN200948792Y (en) | 2007-09-19 |
Family
ID=38891333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620086464 Expired - Fee Related CN200948792Y (en) | 2006-07-05 | 2006-07-05 | Vacuum booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200948792Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107284430A (en) * | 2017-06-20 | 2017-10-24 | 温州意鹤捷汽车配件有限公司 | A kind of automobile vacuum booster |
| CN107867278A (en) * | 2017-11-19 | 2018-04-03 | 吉林东光奥威汽车制动系统有限公司 | A kind of electronic vacuum booster |
| CN112298143A (en) * | 2019-07-31 | 2021-02-02 | 株式会社万都 | Booster and vehicle |
-
2006
- 2006-07-05 CN CN 200620086464 patent/CN200948792Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107284430A (en) * | 2017-06-20 | 2017-10-24 | 温州意鹤捷汽车配件有限公司 | A kind of automobile vacuum booster |
| CN107867278A (en) * | 2017-11-19 | 2018-04-03 | 吉林东光奥威汽车制动系统有限公司 | A kind of electronic vacuum booster |
| CN107867278B (en) * | 2017-11-19 | 2023-08-15 | 吉林东光奥威汽车制动系统有限公司 | Electronic vacuum booster |
| CN112298143A (en) * | 2019-07-31 | 2021-02-02 | 株式会社万都 | Booster and vehicle |
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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: 20070919 |