CN201133430Y - Vacuum booster assembly - Google Patents
Vacuum booster assembly Download PDFInfo
- Publication number
- CN201133430Y CN201133430Y CNU2007201847379U CN200720184737U CN201133430Y CN 201133430 Y CN201133430 Y CN 201133430Y CN U2007201847379 U CNU2007201847379 U CN U2007201847379U CN 200720184737 U CN200720184737 U CN 200720184737U CN 201133430 Y CN201133430 Y CN 201133430Y
- Authority
- CN
- China
- Prior art keywords
- control valve
- outer spring
- spring seat
- vacuum booster
- housing
- 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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- Braking Systems And Boosters (AREA)
Abstract
The utility model discloses a vacuum booster assembly which comprises a shell; the shell is provided with a power cylinder piston; the power cylinder piston is provided with a control valve push rod; the control valve push rod is provided with a control valve outer spring and a control valve inner spring; the front end of the control valve outer spring is connected with an outer spring seat I; the rear end of the control valve inner spring is connected with an inner spring seat, and the front end is connected with a control valve assembly; an assisting chamber is formed between the shell and the power cylinder piston; the assisting chamber comprises a piston plate; membrane is arranged between the piston plate and the shell; the shell is provided with a supporting device; the supporting device adopts a supporting rod; the supporting rod goes through the assisting chamber and the shell. The vacuum booster assembly improves the rigidity of a vacuum booster, prevents permanent deformation in work and greatly improves the safety performance.
Description
Technical field
The utility model relates to a kind of brake device for car, is specifically related to a kind of vacuum booster assembly of hydraulic braking.
Background technique
Vacuum booster links together with braking overall pump, and purpose is to utilize air to follow the pressure difference of vacuum to increase braking force, shortens stopping distance.The rigidity of traditional vacuum booster is by the rigidity decision of housing itself, and other does not have thing to support, and makes vacuum booster can produce deformation when work, increases the idle stroke of vacuum booster, increases the reaction time of braking, brings potential safety hazard to driving; Simultaneously traditional vacuum booster inside is equipped with eliminate the noise circle and filtering circle, alleviates impurity in noise and the FA, particle etc. and enters in the housing, owing to need install respectively, operating process bothers, and has improved cost.
The model utility content
Technical problem to be solved in the utility model just provides a kind of vacuum booster assembly, can effectively solve the problem that produces deformation when the traditional vacuum booster is worked and bring potential safety hazard.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme: a kind of vacuum booster assembly, comprise housing, be provided with the servo-cylinder piston in the housing, be provided with the control valve push rod in the described servo-cylinder piston, described control valve push rod is provided with control valve outer spring and control valve inner spring, described control valve outer spring front end connects outer spring seat I, described control valve inner spring rear end connects the inner spring seat, front end connects the control valve assembly, described inner spring seat is positioned between described outer spring seat I and the control valve assembly, described control valve push rod front end connects the air valve seat, described air valve seat front end connects the air valve head, is formed with afterburning chamber between described housing and the described servo-cylinder piston, and described afterburning chamber comprises piston plate, be provided with diaphragm between described piston plate and the described housing, it is characterized in that: described housing is provided with support device, and described support device adopts strut, and described strut passes described afterburning chamber and runs through described housing.
Further, be provided with the sealing gland positioning device between described strut and the described afterburning chamber, described sealing gland positioning device comprises O shape circle and the setscrew nut that described strut is provided with, and described O shape circle is between described setscrew nut and described housing, and described O shape circle sinks in the described setscrew nut.
Further, to be positioned at described reinforcing indoor for described O shape circle and setscrew nut.
Further, be provided with outer spring seat II between described control valve push rod and the described outer spring seat I, described control valve outer spring rear end connects described outer spring seat II, is provided with noise elimination filtering circle between described outer spring seat I and the outer spring seat II.
The utility model is owing to adopted technique scheme, increased the rigidity of vacuum booster, permanent deformation when having avoided its work, shorten idle stroke simultaneously, reduced reaction time, improved Safety performance greatly, adopt the structure of noise elimination filtering circle one simultaneously, reduce assembly process one time, raised the efficiency, and saved cost.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, embodiment for a kind of vacuum booster assembly of the utility model, comprise housing 1, be provided with servo-cylinder piston 9 in the housing 1, be provided with control valve push rod 2 in the servo-cylinder piston 9, control valve push rod 2 is provided with control valve outer spring 21 and control valve inner spring 23, control valve outer spring 21 front ends connect outer spring seat I22, control valve inner spring 23 rear ends connect inner spring seat 24, front end connects control valve assembly 25, be provided with outer spring seat II26 between outer spring seat I22 and the control valve push rod 2, control valve outer spring 21 rear ends connect outer spring seat II26, be provided with noise elimination filtering circle 27 between outer spring seat I22 and the outer spring seat II26, adopt the structure of one to save once assembling, save cost simultaneously.Control valve push rod 2 front ends embed in the air valve seat 3, air valve seat 3 front ends connect air valve head 4, air valve head 4 front ends are provided with counter-force dish 5, counter-force dish 5 is embedded in the servo-cylinder piston 9, counter-force dish 5 front ends are provided with brake master cylinder pushing rod sleeve 61 and push rod cup 62, be provided with the pole spacing circle 83 of exerting oneself between brake master cylinder pushing rod sleeve 61 and the servo-cylinder piston 9, brake master cylinder pushing rod sleeve 61 is provided with return spring 64.Be formed with afterburning chamber 7 between housing 1 and the servo-cylinder piston 9, afterburning chamber 7 comprises piston plate 72, is provided with diaphragm 71 between piston plate 72 and the housing 1, also is provided with sealing gland assembly 28 between housing 1 and the servo-cylinder piston 7 and is used to seal afterburning chamber 7.Run through being provided with strut 8 on the housing 1, strut 8 is provided with O shape circle 81 and setscrew nut 82, and O shape circle 81 and setscrew nut 82 are positioned at afterburning chamber 7, and O shape circle 81 sinks in the setscrew nut 82, is used to seal afterburning chamber 1, simultaneously strut 8 is played the role of positioning.
When implementing braking, control valve push rod 2 stressed drive air valve seats 3 and air valve head 4 are to left movement, after having eliminated the gap with counter-force dish 5, the core of air valve head 4 compression counter-force dishes 5 makes counter-force dish 5 produce indentation deformation, drive brake master cylinder pushing rod sleeve 61 and push rod cup 62 to left movement, compression retracteding position spring 64 rises brake master cylinder hydraulic pressure and imports each wheel cylinder into, produces braking force.Control valve push rod 2 is in the time of left movement, outer spring seat II26 drives noise elimination filtering circle 27 to left movement and compression control valve outer spring 21, control valve outer spring 21 drive outer spring seat I22 and inner spring seat 24 are to left movement, inner spring seat 24 compression control valve inner springs 23, control valve inner spring 23 drives control valve assembly 25 and presses to servo-cylinder piston 9, thereby servo-cylinder piston 9 is closed.Air valve seat 3 controlled valve follower 2 thrusts continue to left movement, thereby air valve seat 3 is separated with control valve assembly 25, and air enters in the housing 1.
Along with entering of air, thereby diaphragm 71 both sides pressure difference occurs and make diaphragm 71 press to piston plate 72 left in the afterburning chamber 7, drive piston plate 72 and servo-cylinder piston 9 to left movement, have increased the thrust of brake master cylinder pushing rod sleeve 61 and push rod cup 62, thereby play the power-assisted effect, increased braking force.Owing to the effect of strut 8, increased the rigidity of vacuum booster, avoided playing the permanent deformation that power-assisted is done the time spent.
The foregoing description only is to further specify of the present utility model, is not to concrete qualification of the present utility model, any structure after the utility model simple transformation is all belonged to protection domain of the present utility model.
Claims (4)
1, a kind of vacuum booster assembly, comprise housing (1), be provided with servo-cylinder piston (9) in the housing (1), be provided with control valve push rod (2) in the described servo-cylinder piston (9), described control valve push rod (2) is provided with control valve outer spring (21) and control valve inner spring (23), described control valve outer spring (21) front end connects outer spring seat I (22), described control valve inner spring (23) rear end connects inner spring seat (24), front end connects control valve assembly (25), described inner spring seat (24) is positioned between described outer spring seat I (22) and the control valve assembly (25), described control valve push rod (2) front end connects air valve seat (3), described air valve seat (3) front end connects air valve head (4), be formed with afterburning chamber (7) between described housing (1) and the described servo-cylinder piston (9), described afterburning chamber (7) comprises piston plate (72), be provided with diaphragm (71) between described piston plate (72) and the described housing (1), it is characterized in that: described housing (1) is provided with support device, described support device adopts strut (8), and described strut (8) passes described afterburning chamber (7) and runs through described housing (1).
2, vacuum booster assembly according to claim 1, it is characterized in that: be provided with the sealing gland positioning device between described strut (8) and the described afterburning chamber (7), described sealing gland positioning device comprises O shape circle (81) and the setscrew nut (82) that described strut (8) is provided with, described O shape circle (81) is positioned between described setscrew nut (82) and the described housing (1), and described O shape circle (81) sinks in the described setscrew nut (82).
3, vacuum booster assembly according to claim 2 is characterized in that: described O shape circle (81) and described setscrew nut (82) are positioned at described afterburning chamber (7).
4, vacuum booster assembly according to claim 1, it is characterized in that: be provided with outer spring seat II (26) between described control valve push rod (2) and the described outer spring seat I (22), described control valve outer spring (21) rear end connects described outer spring seat II (26), is provided with noise elimination filtering circle (27) between described outer spring seat I (22) and the outer spring seat II (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201847379U CN201133430Y (en) | 2007-10-19 | 2007-10-19 | Vacuum booster assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201847379U CN201133430Y (en) | 2007-10-19 | 2007-10-19 | Vacuum booster assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201133430Y true CN201133430Y (en) | 2008-10-15 |
Family
ID=40061702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201847379U Expired - Lifetime CN201133430Y (en) | 2007-10-19 | 2007-10-19 | Vacuum booster assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201133430Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105416262A (en) * | 2015-08-24 | 2016-03-23 | 浙江诸暨万宝机械有限公司 | Vacuum booster assembly |
-
2007
- 2007-10-19 CN CNU2007201847379U patent/CN201133430Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105416262A (en) * | 2015-08-24 | 2016-03-23 | 浙江诸暨万宝机械有限公司 | Vacuum booster assembly |
| CN105416262B (en) * | 2015-08-24 | 2018-09-25 | 浙江诸暨万宝机械有限公司 | A kind of vacuum booster assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090109 Address after: Zhuji City, Zhejiang Province town of Wan An science and Technology Park, zip code: 311835 Patentee after: Zhejiang Zhuji Wanbao Machinery Co., Ltd. Address before: Zhuji City, Zhejiang Province town of Wan An science and Technology Park, zip code: 311835 Patentee before: Wan'an Group Zhuji Auto Parts Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG PROVINCE ZHUJI WANBAO MACHINERY CO., LTD. Free format text: FORMER OWNER: WAN'AN GROUP ZHUJI AUTO PARTS CO., LTD. Effective date: 20090109 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20081015 |
|
| CX01 | Expiry of patent term |