CN202251552U - Vehicle clutch booster with integrated breathing structure - Google Patents
Vehicle clutch booster with integrated breathing structure Download PDFInfo
- Publication number
- CN202251552U CN202251552U CN2011203319487U CN201120331948U CN202251552U CN 202251552 U CN202251552 U CN 202251552U CN 2011203319487 U CN2011203319487 U CN 2011203319487U CN 201120331948 U CN201120331948 U CN 201120331948U CN 202251552 U CN202251552 U CN 202251552U
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- CN
- China
- Prior art keywords
- valve body
- cavity
- cover plate
- push rod
- clutch booster
- 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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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
A vehicle clutch booster with an integrated breathing structure comprises a valve body, a push rod, a plunger piston and an assistance piston assembly. The valve body is provided with a hydraulic cavity, an air assistance cavity, an air exhaust cavity, a backflow cavity, a compressed air input port and a hydraulic oil inlet, a cover plate is arranged on the end face of the valve body, the push rod penetrates through the cover plate to be connected with the plunger piston, the compressed air input port is communicated with the air assistance cavity of the valve body through a valve and a channel, a breathing channel is positioned on the valve body, and the breathing channel is connected with the backflow cavity and the air exhaust cavity. By means of the integrated internal breathing structure, the vehicle clutch booster has the advantages of being simple and reasonable in structure, free of installation, reliable in sealing, firm and long in service, can stably prevent impurities, dust and rain generated under poor working conditions from entering the air assistance cavity, and is specially suitable for middle and heavy vehicles and engineering vehicles.
Description
Technical field
The utility model relates to a kind of auto parts machinery, especially relates to automobile-used clutch booster.
Background technique
Clutch uses very frequently in the automobile running, in order to alleviate the labor intensity of pilot control clutch, guarantees traffic safety.At present in, generally used clutch booster on heavy-duty car and the engineering vehicle.But traditional clutch booster is under abominable operating mode, and working life is generally shorter.For example: concrete mixer, often run on-site, mud and dust are inhaled into valve body easily, cause the premature wear of power-assisted chamber inner carrier Y shape circle, cause boosting piston gas leakage, and clutch booster lost efficacy; Because working environment abominable, cylinder body also is prone to be worn and corrode in addition, and the working life of whole clutch booster is shorter.
At present; Have and adopt the mode of breathing pipeline to stop in the power-assisted chamber contaminated; To improve life of product, still the mode of the now general external respirating tube of employing is not only installed complicated; And occur respirating tube easily and wear out, come off, reach the bad phenomenon of sealing, its using effect is not very desirable.So be badly in need of a kind of more stable, firm, reliable sealing product of exploitation.
The model utility content
The utility model purpose is to overcome above-mentioned deficiency, provide a kind of simple and reasonable, good airproof performance, long service life, automobile stable and reliable for performance is with clutch booster internal respiration structure.
The technological scheme that technical problem adopted that the utility model solves is:
The automobile-used clutch booster of integrated type breathing structure; Comprise valve body, push rod, plunger, boosting piston assembly, valve body is provided with hydraulic pressure cavity, gas power-assisted chamber, exhaust cavity, refluxing chamber, pressurized air inlet opening and hydraulic oil filler opening, and the valve body end face is equipped with cover plate; Push rod passes cover plate and is connected with plunger; Said pressurized air inlet opening is communicated with the gas power-assisted chamber of valve body through valve and passage, it is characterized in that valve body is provided with respiration channel, and respiration channel connects refluxing chamber and exhaust cavity.The valve body of the utility model forms for casting, when casting, just is integrally formed with respiration channel.This passage one end communicates with the clutch booster relief opening, and an end communicates with the refluxing chamber of booster, and during work, refluxing chamber utilizes this respiration channel to get gas from relief opening.Changed existing technology and adopted the external mode that connects respirating tube, it is stable, firm, sealability obviously improves.
Be provided with seal ring between described valve body and the cover plate, be provided with the dust-proof cover sealing between cover plate and the push rod.Make like this between interior refluxing chamber of valve body and the relief opening and form sealed circuit, the impurity that under bad working environments, produces, dust, rainwater just are difficult to get into valve interior wall, can not destroy the part of valve inner, and the life-span of piston packing just can prolong greatly.
The beneficial effect of the utility model is: the utility model adopts all-in-one-piece internal respiration formula structure; Have simple and reasonable; Need not install, seal advantage reliable, firm, long service life; The impurity that can be more stable stop produces under bad working environments, dust, rainwater get in the gas power-assisted chamber, in being particularly useful for, heavy-duty car and engineering vehicle.
Description of drawings
Below in conjunction with accompanying drawing and embodiment model utility is further specified.
Fig. 1 is the utility model example structure schematic representation.
Among the figure: 1, push rod 2, dust-proof cover 3, cover plate 4, rubber gasket 5, refluxing chamber 6, respiration channel 7, valve body 8, boosting piston assembly 9, Y shape circle 10, pressurized air inlet opening 11, plunger 12, gas power-assisted chamber 13, air intake valve 14, exhaust passage 15, control piston return spring 16, control piston assembly 17, exhaust cavity 18, bat diaphragm 19, hydraulic pressure cavity 20, hydraulic oil filler opening.
Embodiment
In Fig. 1; The automobile-used clutch booster of integrated type breathing structure; Comprise valve body 7, push rod 1, plunger 11, boosting piston assembly 8, valve body 7 is provided with hydraulic pressure cavity 19, gas power-assisted chamber 12, exhaust cavity 17, refluxing chamber 5, pressurized air inlet opening 10 and hydraulic oil filler opening 20, and valve body 7 end faces are equipped with cover plate 3; Be provided with rubber gasket 4 between valve body 7 and the cover plate 3, be provided with dust-proof cover 2 sealings between cover plate 3 and the push rod 1.Push rod 1 passes cover plate 3 and is connected with plunger 11, and said pressurized air inlet opening 10 is communicated with the gas power-assisted chamber 12 of valve body 7 through valve and passage, and valve body 7 is provided with respiration channel 6, and respiration channel 6 connects refluxing chamber 5 and exhaust cavity 17.The valve body 7 of the utility model forms for casting, when casting, just is integrally formed with respiration channel 6.Respiration channel 10 1 ends communicate with the relief opening of clutch booster exhaust cavity 17, and an end communicates with the refluxing chamber 5 of booster, and during work, refluxing chamber 5 utilizes this respiration channel 6 to get gas from relief opening.Change existing technology and adopted the external mode that connects respirating tube,, it is stable, firm, sealability obviously improves.
Among Fig. 1, hydraulic oil filler opening 20 connects clutch master cylinder.When assembly was in off position, push rod 1 withstood clutch separation fork arm.Hydraulic oil filler opening 20 no pressure during driving, air intake valve 13 is in closed condition.When the needs clutch separation, step on down foot treadle, master cylinder pressure oil is from hydraulic oil filler opening 20 input hydraulic pressure chambeies 19; Act on the plunger 11, make plunger 11 produce thrust upwards, pressure oil acts on the control piston assembly 16 simultaneously; Make control piston assembly 16 to moving to left, close relief opening, move on the air intake valve 13; Open intake valve, 10 mouthfuls from the pressurized air inlet opening of pressurized air get into gas power-assisted chamber 12 through passage, and gas pressure is on boosting piston assembly 8; Acting on lower plunger 11 simultaneously at atmospheric pressure and oil pressure makes jointly on the push rod 1 with boosting piston assembly 8 and moves; Thereby controlled clutch, the gas in the refluxing chamber 5 gets into exhaust cavitys 17 through respiration channel 6 at this moment, enters atmosphere.
When the needs clutches engaged, lift foot treadle, 20 mouthfuls of oil pressure of hydraulic oil filler opening progressively reduce to zero.Under the effect of control piston return spring 15 and atmospheric pressure, control piston assembly 16 is moved down, close intake valve, open exhaust valve, in gas power-assisted the chamber in 12 pressurized air through the exhaust passage 14 entering exhaust cavitys 17, pressurized air is opened exhaust diaphragm 18 and is entered atmosphere.Under the effect of clutch inner spring power, carry out plunger 11 and piston assembly 8 downwards simultaneously, produce negative pressure in the refluxing chamber 5 through push rod 1.At this moment the cleaning compressed air in the exhaust cavity 17 is come refluxing chamber 5 by respiration channel 6, reaches the effect of equilibrium air pressure.Because the gas of refluxing chamber 5 get with the inner cleaning compressed air of being discharged of exhaust cavity 17 products, airborne like this impurity, dust etc. just are difficult for getting in the cylinder, the life-span of piston Y shape circle 9 just can prolong greatly.
The foregoing description is the explanation to the utility model, is not the qualification to the utility model, and any structure after simple transformation on the utility model basis all belongs to the protection domain of the utility model.
Claims (2)
1. the automobile-used clutch booster of integrated type breathing structure; Comprise valve body, push rod, plunger, boosting piston assembly, valve body is provided with hydraulic pressure cavity, gas power-assisted chamber, exhaust cavity, refluxing chamber, pressurized air inlet opening and hydraulic oil filler opening, and the valve body end face is equipped with cover plate; Push rod passes cover plate and is connected with plunger; Said pressurized air inlet opening is communicated with the gas power-assisted chamber of valve body through valve and passage, it is characterized in that valve body is provided with respiration channel, and respiration channel connects refluxing chamber and exhaust cavity.
2. the automobile-used clutch booster of integrated type breathing structure according to claim 1 is characterized in that being provided with seal ring between described valve body and the cover plate, is provided with the dust-proof cover sealing between cover plate and the push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203319487U CN202251552U (en) | 2011-09-06 | 2011-09-06 | Vehicle clutch booster with integrated breathing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203319487U CN202251552U (en) | 2011-09-06 | 2011-09-06 | Vehicle clutch booster with integrated breathing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202251552U true CN202251552U (en) | 2012-05-30 |
Family
ID=46112799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203319487U Expired - Lifetime CN202251552U (en) | 2011-09-06 | 2011-09-06 | Vehicle clutch booster with integrated breathing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202251552U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196920A (en) * | 2014-09-22 | 2014-12-10 | 瑞立集团瑞安汽车零部件有限公司 | Integrated clutch booster with control valve |
| CN109764071A (en) * | 2019-01-30 | 2019-05-17 | 瑞立集团瑞安汽车零部件有限公司 | Clutch booster with plunger gas-liquid sealing structure |
| CN113048164A (en) * | 2021-03-24 | 2021-06-29 | 浙江科力车辆控制系统有限公司 | Internal exhaust type clutch booster |
-
2011
- 2011-09-06 CN CN2011203319487U patent/CN202251552U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196920A (en) * | 2014-09-22 | 2014-12-10 | 瑞立集团瑞安汽车零部件有限公司 | Integrated clutch booster with control valve |
| CN109764071A (en) * | 2019-01-30 | 2019-05-17 | 瑞立集团瑞安汽车零部件有限公司 | Clutch booster with plunger gas-liquid sealing structure |
| CN113048164A (en) * | 2021-03-24 | 2021-06-29 | 浙江科力车辆控制系统有限公司 | Internal exhaust type clutch booster |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |