CN202175033U - Hydraulic remote control device for vehicle braking system - Google Patents
Hydraulic remote control device for vehicle braking system Download PDFInfo
- Publication number
- CN202175033U CN202175033U CN2011202411946U CN201120241194U CN202175033U CN 202175033 U CN202175033 U CN 202175033U CN 2011202411946 U CN2011202411946 U CN 2011202411946U CN 201120241194 U CN201120241194 U CN 201120241194U CN 202175033 U CN202175033 U CN 202175033U
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- oil inlet
- pressure source
- source oil
- piston
- control device
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Abstract
The utility model relates to a hydraulic remote control device for vehicle braking system, comprising a valve shell, wherein said valve shell is provided with a primary pressure source oil inlet, a secondary pressure source oil inlet and an oil outlet; a dynamic valve core assembly capable of moving to the left and right is set in the valve shell, and is set between the primary pressure source oil inlet and the secondary pressure source oil inlet, and divides the valve shell into independent first chamber and a second chamber; the primary pressure source oil inlet is communicated with the first chambers; the secondary pressure source oil inlet and the oil outlet are communicated with the second chamber; the dynamic valve core assembly moves to the right under the pressure of incoming oil from the primary pressure source oil inlet to block the secondary pressure source oil inlet. When the oil liquid pressure under the action of the primary pressure source drives the dynamic valve core assembly to move to the right, a one-way valve is built on the secondary pressure source oil inlet, and since then, the output pressure and flow of the oil outlet are equal to the pressure and flow on the primary pressure source oil inlet.
Description
Technical field
The utility model relates to a kind of hydraulic pressure remote control device that is used for motor vehicle braking system, and this control device is installed between braking master cylinder and the brake wheel cylinder.
Background technology
At present in the brake system on some engineering; Because the pipeline length of front and back brake system is different, or the not equal factor of front and back brake facing wearing and tearing, brake-pressure overbalance before and after being prone to exist; And cause the glancing impact vibration to be jolted; Even the inclined to one side phenomenon that occurs stopping, so not only be unfavorable for the safety of service brake, nor be beneficial to the service life of brake system.
Summary of the invention
The utility model technical matters to be solved is to provide a kind of to be used for motor vehicle braking system and can to guarantee front wheel brake and the pressure balanced hydraulic pressure remote control device of trailing wheel braking to above-mentioned prior art present situation, and this drg can be realized the brake system gradual braking.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of hydraulic pressure remote control device that is used for motor vehicle braking system; It is characterized in that: include valve casing; Valve casing is provided with primary pressure source oil inlet, secondary pressure source oil inlet and oil outlet; Be provided with the dynamic core assembly of ability sway in the said valve casing; This dynamic core assembly and is separated into first chamber independent of each other and second chamber with valve casing between primary pressure source oil inlet and secondary pressure source oil inlet, said primary pressure source oil inlet communicates with first chamber; Said secondary pressure source oil inlet and oil outlet communicate with second chamber, and said dynamic core assembly moves to right under the input pressure of primary pressure source oil inlet and ability shutoff secondary pressure source oil inlet.
Above-mentioned dynamic core assembly comprises piston, in order to the piston rod of the said secondary pressure of shutoff source oil inlet; Said piston middle part is separated into described first chamber and second chamber with valve casing inwall liquid sealing with valve casing inside; Be provided with first spring that makes piston be kept away from said secondary pressure source oil inlet in the valve casing; Said piston rod is located in the piston, is provided with in the piston to make piston rod keep overhanging second spring that goes out piston trend.This check valve assembly only receives under certain primary pressure effect at piston; Just possesses the trend of closing secondary pressure source oil inlet; The pressure size that promotes piston is determined by first spring; And the pressure size of opening secondary pressure source oil inlet is determined by second spring, guarantees effectively that through rotating different springs oil outlet pressure is identical with the pressure and the flow that pass through primary pressure source oil inlet with flow.
Above-mentioned valve casing is made up of housing and plug; Said housing left end opening; Said primary pressure source oil inlet is arranged on the left side wall of housing; Said oil outlet is arranged on the sidewall of housing, and said plug is fixed on the left end opening part of housing and cooperates with the opening liquid sealing, and said secondary pressure source oil inlet is arranged on the plug.This structure is convenient to check valve assembly is installed in the valve casing.
Be provided with seal ring between above-mentioned piston periphery and the inner walls and carry out liquid sealing.Above-mentioned piston periphery wall is provided with two circular grooves, and said seal ring is embedded in the respective annular groove.
Above-mentioned piston rod has left annular shoulder block and right annular shoulder block; Annular shoulder block in a left side and right annular shoulder block are provided with at interval; Be inserted with baffle plate on the said piston, this baffle plate stretches in the piston and between annular shoulder block in a left side and right annular shoulder block, carries out spacing with the left and right sides slippage to piston rod.This structure guarantees that piston rod can not block secondary pressure source oil inlet under normal conditions.
For guaranteeing that valve rod can be with the effective shutoff of outlet of secondary pressure source oil inlet, the exit that above-mentioned plug the inner is positioned at secondary pressure source oil inlet is fixed with rubber valve seat, and said piston rod cooperates with this rubber valve seat and secondary pressure source oil inlet is blocked.
For gas is effectively discharged from first chamber, prevent that gas from getting into second chamber, above-mentioned housing is provided with the air bleed hole that communicates with first chamber, and air bleed screw is installed in the air bleed hole.
Compared with prior art; The advantage of the utility model is: when oil liquid pressure under the effect in primary pressure source; The fluid of pressurized forces dynamic core assembly to move right, and when dynamic core assembly blocks secondary pressure source oil inlet, sets up a check valve at oil inlet place, secondary pressure source; When from the secondary pressure source oil inlet exert pressure when can make system works; Secondary pressure source oil inlet can be opened, and just equates with the pressure and the flow of primary pressure source oil inlet from delivery pressure and the flow that at this moment begins oil outlet, only if when piston moves, can cause variation.
Description of drawings
Fig. 1 is the structure cutaway view of the utility model embodiment;
Fig. 2 is applied to the schematic diagram of brake system for the utility model embodiment.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, be a preferred embodiment of the utility model.
A kind of hydraulic pressure remote control device that is used for motor vehicle braking system; Include valve casing 1; Valve casing 1 is provided with primary pressure source oil inlet P 1, secondary pressure source oil inlet P 2 and oil outlet N, and valve casing 1 is formed housing 11 left end openings by housing 11 and plug 12; Primary pressure source oil inlet P 1 is arranged on the left side wall of housing 11; Oil outlet N is arranged on the sidewall of housing 11, and plug 12 is fixed on the left end opening part of housing 11 and cooperates with the opening liquid sealing, and secondary pressure source oil inlet P 2 is arranged on the plug 12.
Be provided with the dynamic core assembly of ability sway in the valve casing 1; This dynamic core assembly is between primary pressure source oil inlet P 1 and secondary pressure source oil inlet P 2; And valve casing 1 is separated into the first chamber A1 independent of each other and the second chamber A2; Primary pressure source oil inlet P 1 communicates with the first chamber A1; Secondary pressure source oil inlet P 2 communicates with the second chamber A2 with oil outlet N, and dynamically core assembly moves to right under the input pressure of primary pressure source oil inlet P 1 and blocks secondary pressure source oil inlet P 2.
Dynamically core assembly comprise piston 2, in order to the piston rod 3 of the said secondary pressure of shutoff source oil inlet P 2; Piston 2 middle parts and valve casing 1 inwall liquid sealing and valve casing 1 inside is separated into the aforementioned first chamber A1 and the second chamber A2; Be provided with seal ring 6 between piston 2 peripheries and housing 11 inwalls and carry out liquid sealing; Piston 2 periphery walls are provided with two circular grooves 21, and seal ring 6 is embedded in respective annular groove 21; Be provided with first spring 4 that makes piston 2 be kept away from said secondary pressure source oil inlet P 2 in the valve casing 1; Piston rod 3 is located in the piston 2 and ability left and right sides slippage; Piston rod 3 has left annular shoulder block 31 and right annular shoulder block 32; The annular shoulder block 31 in a left side is provided with right annular shoulder block 32 at interval; Be inserted with baffle plate 7 on the piston 2, this baffle plate 7 stretches in the piston 2 and between annular shoulder block 31 in a left side and right annular shoulder block 32, carries out spacing with the left and right sides slippage to piston rod 3; Be provided with in the piston 2 and make piston rod 3 keep overhanging second spring 5 that goes out piston 3 trend.
The exit that plug 12 the inners are positioned at secondary pressure source oil inlet P 2 is fixed with rubber valve seat 8, and piston rod 3 cooperates with this rubber valve seat 8 and secondary pressure source oil inlet P 2 is blocked.
As shown in Figure 2; This control device is installed between braking master cylinder and the front and back brake wheel cylinder, braking master cylinder 14 output two-way hydraulic oil, wherein one tunnel primary pressure sources as this remote control device; Another road is as the secondary pressure source; They are received valve casing 1 respectively and are provided with on primary pressure source oil inlet P 1 and the secondary pressure source oil inlet P 2, tell a branch road as the oil circuit in primary pressure source and are communicated with back brake wheel cylinder 15, and oil outlet N is communicated with preceding brake wheel cylinder 16 on the valve casing 1.
When oil liquid pressure under the effect in primary pressure source; The bearing force that the fluid of pressurized forces piston to overcome first spring 4 moves right, and piston rod 3 also moves to right thereupon and contacts with rubber valve seat 8, and the input 2-level hydraulic on the right can be limited a part by piston rod 3 simultaneously; The pressure at oil inlet P 2 places, secondary pressure source will diminish this moment; Equate that until the pressure at secondary pressure source oil inlet P 2 places and the pressure at primary pressure source oil inlet P 1 place as long as the pressure at oil inlet P 1 place, primary pressure source is not cancelled, dynamically core assembly is in dynamic balance state always; These remote controllers are through the dynamic adjustments in gap between piston rod 3 and the rubber valve seat 8; The delivery pressure of realizing oil outlet N is equated with the pressure at primary pressure source oil inlet P 1 place, guarantee the equilibrium of pressure of front wheel brake and trailing wheel braking, finally realize the brake system gradual braking.
Claims (8)
1. hydraulic pressure remote control device that is used for motor vehicle braking system; It is characterized in that: include valve casing (1); Valve casing (1) is provided with primary pressure source oil inlet (P1), secondary pressure source oil inlet (P2) and oil outlet (N); Be provided with the dynamic core assembly of ability sway in the said valve casing (1); This dynamic core assembly is positioned between primary pressure source oil inlet (P1) and the secondary pressure source oil inlet (P2), and valve casing (1) is separated into first chamber independent of each other (A1) and second chamber (A2), and said primary pressure source oil inlet (P1) communicates with first chamber (A1); Said secondary pressure source oil inlet (P2) and oil outlet (N) communicate with second chamber (A2), and said dynamic core assembly moves to right under the input pressure of primary pressure source oil inlet (P1) and blocks secondary pressure source oil inlet (P2).
2. the hydraulic pressure remote control device that is used for motor vehicle braking system according to claim 1; It is characterized in that: said dynamic core assembly comprises piston (2), in order to the piston rod (3) of the said secondary pressure of shutoff source oil inlet (P2); Said piston (2) middle part is separated into described first chamber (A1) and second chamber (A2) with valve casing (1) inwall liquid sealing with valve casing (1) inside; Be provided with first spring (4) that makes piston (2) be kept away from said secondary pressure source oil inlet (P2) in the said valve casing (1); Said piston rod (3) is located in the piston (2), is provided with in the piston (2) to make piston rod (3) keep overhanging second spring (5) that goes out piston (3) trend.
3. the hydraulic pressure remote control device that is used for motor vehicle braking system according to claim 1 and 2; It is characterized in that: said valve casing (1) is made up of housing (11) and plug (12); Said housing (11) left end opening; Said primary pressure source oil inlet (P1) is arranged on the left side wall of housing (11); Said oil outlet (N) is arranged on the sidewall of housing (11), and said plug (12) is fixed on the left end opening part of housing (11) and cooperates with the opening liquid sealing, and said secondary pressure source oil inlet (P2) is arranged on the plug (12).
4. the hydraulic pressure remote control device that is used for motor vehicle braking system according to claim 3 is characterized in that: be provided with seal ring (6) between said piston (2) periphery and housing (11) inwall and carry out liquid sealing.
5. the hydraulic pressure remote control device that is used for motor vehicle braking system according to claim 4 is characterized in that: said piston (2) periphery wall is provided with two circular grooves (21), and said seal ring (6) is embedded in respective annular groove (21).
6. the hydraulic pressure remote control device that is used for motor vehicle braking system according to claim 3; It is characterized in that: said piston rod (3) has left annular shoulder block (31) and right annular shoulder block (32); A left side annular shoulder block (31) and right annular shoulder block (32) are provided with at interval; Be inserted with baffle plate (7) on the said piston (2), this baffle plate (7) stretches in the piston (2) and is positioned between left annular shoulder block (31) and the right annular shoulder block (32) to carry out spacing to the left and right sides slippage of piston rod (3).
7. the hydraulic pressure remote control device that is used for motor vehicle braking system according to claim 3; It is characterized in that: the exit that said plug (12) the inner is positioned at secondary pressure source oil inlet (P2) is fixed with rubber valve seat (8), and said piston rod (3) cooperates with this rubber valve seat (8) and secondary pressure source oil inlet (P2) is blocked.
8. the hydraulic pressure remote control device that is used for motor vehicle braking system according to claim 3 is characterized in that: said housing (11) is provided with the air bleed hole (13) that communicates with first chamber (A1), and air bleed screw (9) is installed in the air bleed hole (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202411946U CN202175033U (en) | 2011-07-07 | 2011-07-07 | Hydraulic remote control device for vehicle braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202411946U CN202175033U (en) | 2011-07-07 | 2011-07-07 | Hydraulic remote control device for vehicle braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202175033U true CN202175033U (en) | 2012-03-28 |
Family
ID=45864935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202411946U Expired - Fee Related CN202175033U (en) | 2011-07-07 | 2011-07-07 | Hydraulic remote control device for vehicle braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202175033U (en) |
-
2011
- 2011-07-07 CN CN2011202411946U patent/CN202175033U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20180707 |