CN102039887A - Vacuum booster - Google Patents
Vacuum booster Download PDFInfo
- Publication number
- CN102039887A CN102039887A CN2009101533464A CN200910153346A CN102039887A CN 102039887 A CN102039887 A CN 102039887A CN 2009101533464 A CN2009101533464 A CN 2009101533464A CN 200910153346 A CN200910153346 A CN 200910153346A CN 102039887 A CN102039887 A CN 102039887A
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- China
- Prior art keywords
- vacuum booster
- spring
- spring seat
- control valve
- supported
- 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.)
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Abstract
The invention relates to a vacuum booster comprising a front shell assembly, a front shell involucra, a rear shell assembly, a rear shell involucra and a control valve. The vacuum booster is characterized in that a spring buffer device is supported between a control valve piston and a feedback tray and comprises a left spring seat and a right spring seat which are sleeved together, and a spring is supported between the left spring seat and the right spring seat. The improved vacuum booster in a simple and reasonable structure can effectively generate great assistance in time to rapidly stop a vehicle running at a high speed in shorter time in case of emergency when a driver rapidly treads a pedal.
Description
Technical field
The present invention relates to a kind of vacuum booster.
Background technology
The Modern Car brake system adopts vacuum servo more, and its groundwork principle is to utilize the pressure reduction of vacuum and atmosphere, reaches power-assisted purpose.Because present vacuum booster is set up power-assisted and is allowed vehicle stop, and needs the regular hour.Like this, if be in an emergency down, need in the extremely short time vehicle be stopped, obviously present vacuum booster is that out of reach requires.So, at this extraordinary circumstances, certainly will need a kind of power-assisted fast in case of emergency, and normal in the ordinary course of things power-assisted vacuum booster.
Summary of the invention
Technical matters to be solved by this invention provides a kind of simple and reasonable vacuum booster, through after such improvement, vacuum booster is stepped on rapidly in the emergency situation of pedal at chaufeur, can produce big power-assisted timely and effectively, and the vehicle of fast running can be stopped in the short period of time.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of vacuum booster, and it comprises preceding housing assy, fore shell epithelium, back housing assy, back cover epithelium and control cock,
It is characterized in that:
Be supported with spring bumper between control valve piston and the reaction plate.
As improvement, described spring bumper is left spring seat and the right spring perch that is linked in together, and spring is supported between left spring seat and the right spring perch.
At last, described spring bumper abuts in together by the upper shield and the reaction plate of left spring seat and fixed control valve plunger.
Compared with prior art, the invention has the advantages that: mainly between original general vacuum booster air valve rod and reaction plate, add a spring bumper, change the size of choker relief valve opening by this spring bumper, thereby change the size of power-assisted epithelium servo force, through after such improvement, vacuum booster is stepped on rapidly in the emergency situation of pedal at chaufeur, can produce big power-assisted timely and effectively, and the vehicle of fast running can be stopped in the short period of time, the characteristics that the present invention gives prominence to are that vacuum-assisted servo-actuated has improved, just power output increases and increases accordingly along with input force ground, compare general vacuum booster, if when stepping on brake pedal rapidly, because advancing the speed of input force is too fast, cause servo force not catch up with, the not enough situation of power-assisted, as seen the outstanding advantage of the present invention in emergency situation, what also need to illustrate a bit is exactly, device of the present invention can't influence brake boost generally speaking, that is to say to be the same with other vacuum booster power-assisted effects in the ordinary course of things.
Description of drawings
Fig. 1 is traditional constructional drawing;
Fig. 2 is a structure cutaway view of the present invention;
Fig. 3 is a structure cutaway view of the present invention (under the quiescence);
Fig. 4 is a structure cutaway view of the present invention (under the braking mode);
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As Fig. 1-4 signal, a kind of vacuum booster, it comprises preceding housing assy 1, fore shell epithelium 2, back housing assy 3, back cover epithelium 4 and control cock, wherein, preceding housing assy 1, fore shell epithelium 2, back housing assy 3, back cover epithelium 4 is by some other parts such as fore shell epithelium liner plate 5, pull back spring seat 6, control cock is back-up ring 7 fixedly, intermediate sleeve disc assembly 8, back cover epithelium liner plate 9 connects and composes first chamber 10 of vacuum booster, second chamber 11, the 3rd chamber 12, the 4th chamber 13, this is traditional structure, control cock has comprised control valve body 14 in addition, control valve piston 15, choker relief valve 16, push rod 17, spring device 18, formed with radius-rod drive and vacuum valve port A has progressively been closed the control cock of progressively opening with air valve port B, also be traditional structure, the crucial part of its invention is to be supported with spring bumper 20 between control valve piston 15 and the reaction plate 19.Spring bumper 20 is left spring seat 21 and the right spring perches 22 that are linked in together, and spring 23 is supported between left spring seat 21 and the right spring perch 22.Spring bumper 20 abuts in together by the upper shield 25 and the reaction plate 19 of left spring seat 21 and fixed control valve plunger 24.
Like this, when pedal not, because the vacuum valve opening is opened, first, second and third in the servo-unit and four chambeies all communicate, and all are in vacuum state.
Under general braking condition, the air valve port will be opened this moment, and the vacuum valve port will be closed, air corresponding passage in the control valve body enters first and third chamber, because second, four chambeies still are in vacuum state, this moment is because the pressure differential effect just produces corresponding servo force, i.e. power-assisted to diaphragm.Under the emergency braking condition, because the input force speed of push rod is accelerated, spring bumper will work this moment, it will absorb the input force of a part of push rod, and this moment the air valve port will than general run of thins open bigger, that is to say that a large amount of air will enter first and third chamber, thereby produce bigger power-assisted in moment.
Claims (3)
1. vacuum booster, it comprises preceding housing assy, fore shell epithelium, back housing assy, back cover epithelium and control cock,
It is characterized in that:
Be supported with spring bumper between control valve piston and the reaction plate.
2. vacuum booster according to claim 1 is characterized in that spring bumper is left spring seat and the right spring perch that is linked in together, and spring is supported between left spring seat and the right spring perch.
3. vacuum booster according to claim 2 is characterized in that spring bumper abuts in together by the upper shield and the reaction plate of left spring seat and fixed control valve plunger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101533464A CN102039887A (en) | 2009-10-15 | 2009-10-15 | Vacuum booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101533464A CN102039887A (en) | 2009-10-15 | 2009-10-15 | Vacuum booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102039887A true CN102039887A (en) | 2011-05-04 |
Family
ID=43906530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101533464A Pending CN102039887A (en) | 2009-10-15 | 2009-10-15 | Vacuum booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102039887A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815289A (en) * | 2011-06-06 | 2012-12-12 | 日信工业株式会社 | Vacuum booster for vehicular brake |
| CN103448706A (en) * | 2013-09-04 | 2013-12-18 | 浙江万向系统有限公司 | Vacuum booster assembly with BA valve |
| CN103661343A (en) * | 2013-12-23 | 2014-03-26 | 浙江亚太机电股份有限公司 | Rapidly-inserted push rod fork assembly used for vacuum booster |
| 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 |
| CN107891853A (en) * | 2017-11-15 | 2018-04-10 | 宁波市鄞州堃信工业产品设计有限公司 | The electrodeless no-load voltage ratio vacuum booster of Double-working-condition |
-
2009
- 2009-10-15 CN CN2009101533464A patent/CN102039887A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815289A (en) * | 2011-06-06 | 2012-12-12 | 日信工业株式会社 | Vacuum booster for vehicular brake |
| CN102815289B (en) * | 2011-06-06 | 2015-07-22 | 日信工业株式会社 | Vacuum booster for vehicular brake |
| US9283941B2 (en) | 2011-06-06 | 2016-03-15 | Nissin Kogyo Co., Ltd. | Vacuum booster for a vehicular brake |
| CN103448706A (en) * | 2013-09-04 | 2013-12-18 | 浙江万向系统有限公司 | Vacuum booster assembly with BA valve |
| CN103661343A (en) * | 2013-12-23 | 2014-03-26 | 浙江亚太机电股份有限公司 | Rapidly-inserted push rod fork assembly used for vacuum booster |
| CN103661343B (en) * | 2013-12-23 | 2016-04-27 | 浙江亚太机电股份有限公司 | For the push-in push rod fork assembly of vacuum booster |
| 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 |
| CN107891853A (en) * | 2017-11-15 | 2018-04-10 | 宁波市鄞州堃信工业产品设计有限公司 | The electrodeless no-load voltage ratio vacuum booster of Double-working-condition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110504 |
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| RJ01 | Rejection of invention patent application after publication |