CN201002601Y - Penetration type double-diaphragm vacuum booster assembly - Google Patents
Penetration type double-diaphragm vacuum booster assembly Download PDFInfo
- Publication number
- CN201002601Y CN201002601Y CNU2006201730036U CN200620173003U CN201002601Y CN 201002601 Y CN201002601 Y CN 201002601Y CN U2006201730036 U CNU2006201730036 U CN U2006201730036U CN 200620173003 U CN200620173003 U CN 200620173003U CN 201002601 Y CN201002601 Y CN 201002601Y
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- valve body
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- diaphragm
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Abstract
The utility model relates to a through style double diaphragm vacuum booster assembly, which belongs to vehicle braking technology field. The utility model includes a middle shell part, a rear shell, a front shell part, a control valve part and a valve body sleeve. The valve body is connected with a sleeve spring of the valve body sleeve; a rear face of the valve body sleeve touches and seals the control valve part; the seal ring parts is of sliding sealed connection with the valve body sleeve; the rear shell is of interference riveting connection with the seal ring part; the feedback disc and the pressed block are pressed together by the valve body and the second boosting disc; the guide bar part is riveted with the front shell; the secondary diaphragm is of sliding sealed with the guide bar part; the seal sleeve is connected with the central shell part and the diaphragm; the limiting nut is of sealed coupling with a thread of the guide bar part; the guide bar part passed through all the assembly. The utility model has the advantages of being fresh in structure and simple in fulfilment, which greatly shortens the response time of the booster without any elastic and plastic deformation during the service, as well as increases the comfortability of the braking.
Description
Technical field
The utility model belongs to the automobile brake technical field, is a kind of new design that is applicable to the vacuum booster assembly of medium-to-high grade car or cross-country car.
Background technology
Vacuum booster is the critical component in the brake system of car, and the conventional two diaphragm vacuum booster principles such as the figure three in early stage show.Its main effect is its vacuum of utilizing engine petrol work the time to be produced, or the vacuum that vacuum pump produced that diesel motor installed additional, when chaufeur depresses brake pedal, borrow the thrust that the different pressures difference of two common pressure chamber and two transformation chambeies is produced in the vacuum booster, amplify brake pedal force by design proportion and promote brake master cylinder piston, braking liquid in the compression brake master cylinder produces hydraulic pressure, and is delivered to car side brake and makes brake shoe brake cheek contact (or brake clamp inside brake piece is contacted with brake disc) and then the control vehicle deceleration of generation friction drag with wheel nave or brake.
Two diaphragm vacuum boosters in early stage since all application forces all counteraction on housing, so when work housing distortion bigger, thereby bring the danger that idle travel is big and housing ftractures; In order to strengthen casing rigidity, general thickness of shell all reaches more than the 1.5mm, and this has just increased the weight of whole servo-unit assembly greatly; Because the volume of four inner chambers is bigger, so reaction time and drop away time are all longer.
Summary of the invention
The utility model provides a kind of penetration type two diaphragm vacuum booster assemblies, traditional double diaphragm vacuum booster assembly weight is big to solve, the reaction time and drop away time big problem.The technical scheme that the utility model is taked is: middle shell parts 8, rear housing 17 are riveted joint interference sealing with diaphragm 7; Middle shell parts 8 are connected with mesochite sealing gland parts 15 interference riveted joint; Mesochite sealing gland parts 15 are connected for slipper seal with the second power-assisted disk component 13; Secondary diaphragm 9 and the second power-assisted disk component, 13 interference fit; Secondary diaphragm 9, middle shell parts 8 are tightly connected for the riveted joint interference with front case 10; Front case 7 and 13 of the second power-assisted disk components press-fit return spring 11; Master cylinder push rod 16 is fitted in the second power-assisted disk component 13; Valve rod return spring 2 is socketed in control cock parts 1 outside, valve body 4 is socketed in control cock parts 1 outside, valve body cover 3 is socketed in valve body 4 outsides, press-fit valve body sleeve spring 6 between valve body cover 3 and the valve body 4, this valve body cover 3, valve body 4 link together by locking plate 5 with valve body sleeve spring 6, valve body overlaps 3 aft end faces and contacts and seal with control cock parts 1, forms an intake valve port, and control cock parts 1 match with valve body 4 and form atmosphere valve port and vacuum valve port; Seal ring parts 21 overlap 3 slipper seals with valve body and are connected; Rear housing 17 is connected with seal ring parts 21 interference riveted joint; Valve body 4 and diaphragm 7 interference fit; Reaction plate 19 and briquetting 20 are by valve body 4 and the second power-assisted disk component, 13 force togethers; Pilot bar parts 12 are riveted together with front case 10; Secondary diaphragm 9 and 12 slipper seals of pilot bar parts; Sealing shroud 14 is connected with middle shell parts 8 and diaphragm 7; Stop nut 18 cooperates with pilot bar parts 12 thread seals; Pilot bar parts 12 run through whole assembly.
Principle of work of the present utility model is: braking procedure: the input force that transmits from stretcher promotes valve rod, control cock parts 1 are started working, locking plate 5 moves forward thereby the air valve seat moves forward drive, promoting valve body cover 3 also travels forward, thereby make after the vacuum valve port closes, two common pressure chamber and two transformation chambeies are isolated, atmosphere valve port and intake valve port are all opened, so just realized the increasing of air inlet cross-sectional area, thereby shortened the time of air inlet, two transformation chambeies begin to realize power-assisted by the controlled manner inflation, by master cylinder push rod the input force that amplifies is passed on the master brake cylinder first piston, promote first piston realizable force liquid and transform the realization braking.The reaction force acts of braking force is being installed on the bar, thereby has avoided reaction force acts to make all drawbacks of servo-unit distortion on servo-unit.
Dispose procedure: after input force was cancelled, atmosphere valve port and intake valve port were closed under the effect of valve rod return spring, and the vacuum valve port is opened, and two common pressure chamber and two transformation chamber air pressure are realized balance, realize return under the effect of return spring.
The utility model has the advantages that: novel structure is easy to realize.Quick air intake structure of a cover and the pilot bar parts that run through whole servo-unit have been increased, the reaction time of servo-unit is obviously shortened, nonelastic and plastic deformation during servo-unit work, thereby shortened the idle travel of servo-unit, thereby the idle travel of stretcher is obviously shortened, increased the traveling comfort of braking.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is a traditional double diaphragm vacuum booster structural representation.
The specific embodiment
Middle shell parts 8, rear housing 17 are riveted joint interference sealing with diaphragm 7; Middle shell parts 8 are connected with mesochite sealing gland parts 15 interference riveted joint; Mesochite sealing gland parts 15 are connected for slipper seal with the second power-assisted disk component 13; Secondary diaphragm 9 and the second power-assisted disk component, 13 interference fit; Secondary diaphragm 9, middle shell parts 8 are tightly connected for the riveted joint interference with front case 10; Front case 7 and 13 of the second power-assisted disk components press-fit return spring 11; Master cylinder push rod 16 is fitted in the second power-assisted disk component 13; It is characterized in that: valve rod return spring 2 is socketed in control cock parts 1 outside, valve body 4 is socketed in control cock parts 1 outside, valve body cover 3 is socketed in valve body 4 outsides, press-fit valve body sleeve spring 6 between valve body cover 3 and the valve body 4, this valve body cover 3, valve body 4 link together by locking plate 5 with valve body sleeve spring 6, valve body overlaps 3 aft end faces and contacts and seal with control cock parts 1, forms an intake valve port, and control cock parts 1 match with valve body 4 and form atmosphere valve port and vacuum valve port; Seal ring parts 21 overlap 3 slipper seals with valve body and are connected; Rear housing 17 is connected with seal ring parts 21 interference riveted joint; Valve body 4 and diaphragm 7 interference fit; Reaction plate 19 and briquetting 20 are by valve body 4 and the second power-assisted disk component, 13 force togethers; Pilot bar parts 12 are riveted together with front case 10; Secondary diaphragm 9 and 12 slipper seals of pilot bar parts; Sealing shroud 14 is connected with middle shell parts 8 and diaphragm 7; Stop nut 18 cooperates with pilot bar parts 12 thread seals; Pilot bar parts 12 run through whole assembly.
Claims (1)
1, the two diaphragm vacuum booster assemblies of a kind of penetration type, middle shell parts, rear housing and diaphragm are riveted joint interference sealing; The middle shell parts are connected with mesochite sealing gland parts interference riveted joint; Mesochite sealing gland parts are that slipper seal is connected with the second power-assisted disk component, the secondary diaphragm and the second power-assisted disk component interference fit; Secondary diaphragm, middle shell parts and front case are tightly connected for the riveted joint interference; Press-fit return spring between the front case and the second power-assisted disk component; Master cylinder push rod is fitted in the second power-assisted disk component, it is characterized in that: the valve rod return spring is socketed in control cock parts outside, valve body is socketed in control cock parts outside, the valve body cover is socketed in the valve body outside, press-fit the valve body sleeve spring between valve body cover and the valve body, this valve body cover, valve body and valve body sleeve spring link together by locking plate, and valve body cover aft end face contacts and seals with the control cock parts, form an intake valve port, the control cock parts match with valve body and form atmosphere valve port and vacuum valve port; The seal ring parts are connected with the slipper seal of valve body cover; Rear housing is connected with seal ring parts interference riveted joint; Valve body and diaphragm interference fit; Reaction plate and briquetting are by the valve body and the second power-assisted disk component force together; Pilot bar parts and front case are riveted together; Secondary diaphragm and the slipper seal of pilot bar parts; Sealing shroud is connected with middle shell parts and diaphragm; Stop nut cooperates with pilot bar parts thread seal; The pilot bar parts run through whole assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201730036U CN201002601Y (en) | 2006-12-22 | 2006-12-22 | Penetration type double-diaphragm vacuum booster assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201730036U CN201002601Y (en) | 2006-12-22 | 2006-12-22 | Penetration type double-diaphragm vacuum booster assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201002601Y true CN201002601Y (en) | 2008-01-09 |
Family
ID=39038141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201730036U Expired - Fee Related CN201002601Y (en) | 2006-12-22 | 2006-12-22 | Penetration type double-diaphragm vacuum booster assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201002601Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102632881A (en) * | 2011-02-15 | 2012-08-15 | 株式会社万都 | Booster assembly for vehicles |
| CN102963346A (en) * | 2011-08-30 | 2013-03-13 | 株式会社万都 | Booster assembly for vehicle |
| CN104527629A (en) * | 2014-12-04 | 2015-04-22 | 吉林东光奥威汽车制动系统有限公司 | Automobile vacuum booster automatic emergency braking system |
| CN114506305A (en) * | 2022-03-03 | 2022-05-17 | 浙江万向系统有限公司 | Vacuum booster assembly |
-
2006
- 2006-12-22 CN CNU2006201730036U patent/CN201002601Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102632881A (en) * | 2011-02-15 | 2012-08-15 | 株式会社万都 | Booster assembly for vehicles |
| CN102963346A (en) * | 2011-08-30 | 2013-03-13 | 株式会社万都 | Booster assembly for vehicle |
| CN102963346B (en) * | 2011-08-30 | 2015-04-01 | 株式会社万都 | Booster assembly for vehicle |
| CN104527629A (en) * | 2014-12-04 | 2015-04-22 | 吉林东光奥威汽车制动系统有限公司 | Automobile vacuum booster automatic emergency braking system |
| CN114506305A (en) * | 2022-03-03 | 2022-05-17 | 浙江万向系统有限公司 | Vacuum booster assembly |
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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: 20080109 Termination date: 20101222 |