CN200951766Y - Semiautomatic brake control valve capable of changing initial pressure ratio for automobile - Google Patents
Semiautomatic brake control valve capable of changing initial pressure ratio for automobile Download PDFInfo
- Publication number
- CN200951766Y CN200951766Y CN 200520006119 CN200520006119U CN200951766Y CN 200951766 Y CN200951766 Y CN 200951766Y CN 200520006119 CN200520006119 CN 200520006119 CN 200520006119 U CN200520006119 U CN 200520006119U CN 200951766 Y CN200951766 Y CN 200951766Y
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- valve
- piston
- change
- spring
- control cock
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
A semi-automatic automobile brake control valve with variable initial pressure ratio comprises a piston (32) with variable initial pressure ratio arranged in the housing (9) of the control valve, a reset spring (2), and a second-order equalizing piston bush (8), wherein a pushing shaft (6) and a rubber spring (5) are arranged in the housing; an exhaust valve, an exhaust valve base, a spring, a second-order relay equalizing piston bush (17), and a first-order relay piston (16) are arranged below the piston (32) with variable initial pressure ratio; the exhaust valve, the exhaust valve base, the spring and an exhaust valve pedestal are arranged in the lower cover of a control valve below the first-order relay piston; the exhaust hole of a rear bridge air reservoir, a rear bridge brake air outlet, an air pressure gauge interface and an execution valve are arranged on the upper housing of the control valve; and the exhaust hole of a front-bridge air reservoir and a front bridge brake air outlet are arranged on the lower cover of the control valve. The utility model is suitable for automobile braking system and can effectively utilize the conversion effect of braking force and adhesion force to shorten braking distance and suppress hysteresis, thereby prevent the automobile from side slip and tail flick, thus improving stability and smoothness of driving.
Description
Technical field: the utility model relates to the control cock of auto brake system, the variable pressure ratio automobile brake control cock just of particularly a kind of S. A..
Background technology: the automobile of air pressure and supercharging air oil brake system in the prior art, brake control valve all is with fixing particular value, control the work and the usefulness of whole brake system of car, and be in specific road conditions condition, do not add the additional facilities automobile with zero load, front and rear wheel braking force and car load braking force are designed into the ideal Distribution characteristic, and each valve automatically regulating seldom often compares P with front and back wheel air pressure
2/ P
1=1 is a constant, decides the distribution of the various performances of automobile brake, automobile one place in operation by the first pressure ratio size of brake control valve, additional facilities is got all the ready, and axle just carries and changes, and distributing with Ideal Characteristics just has very big difference, since heavy duty, the speed of a motor vehicle, road, the variation of weather, outstanding exposure stopping distance and time, hysteresis quality increases, the random servo-actuated of operation control is difficult to be implemented under the comparatively ideal state and carries out, and zero load as a result has well smooth-going, arbitrarily servo-actuated, and heavily loaded stopping distance and time, hysteresis quality is all very big, meets overcast and rainy road to slide, the muddy shape operation control of freezing in road surface, arbitrarily servo-actuated, comformability is better, and Here it is brake control valve is the low pros and cons place of pressure ratio just, roughly unloaded, coordinate, ride comfort is poor, heavy duty stopping distance and time, hysteresis quality is less, and it is better to operate random servo-actuated, brake pedal is heavy, it is sliding to meet overcast and rainy road, muddy freezing, and the road surface is operated controlled poor, loses stability and safe reliability, Here it is brake control valve is the high pros and cons place of pressure ratio just.
Summary of the invention: the purpose of this utility model is to provide a kind of S. A. variable pressure ratio automobile brake control cock just, it is that the valve of a fixed value is made the valve that can be changed into two first pressing ratios, thereby improve the comformability that various loadings, the speed of a motor vehicle, road use climatically, operation control, random servo-actuated and safe reliability, reduce labor intensity, improve economic travelling speed and benefit.
Formation of the present utility model: by conversion, carrying out valve and two stage braking control cock forms, dustproof glue lid 7 is installed between fork push shaft 6 and the control cock upper shell 9, one-level dummy piston 3 and secondary dummy piston cover 8 are installed in control cock upper shell 9, assembling fork push shaft 6 and rubber spring 5 in one-level dummy piston 3, it is spacing that jump ring 4 is housed on one-level dummy piston 3, retracing spring 2 is housed below one-level dummy piston 3, in the control cock upper shell 9 below one-level dummy piston 3 drain tap 12 is housed, blow off valve gate seat 15, spring 13 and secondary servo dummy piston cover 17, jump ring 18 is arranged below blow off valve gate seat 15, in drain tap 12 and secondary servo dummy piston cover 17, one-level relay piston 16 is housed, drain tap 19 is installed in the control valve body lower cover 33 below one-level relay piston 16, blow off valve gate seat 22 and spring 20, blow off valve base 23 is installed in drain tap 19 and control valve body lower cover, deflation hole 25 is arranged in it, the back axle air tank interface 14 of giving vent to anger is arranged on control cock upper shell 9, fixing threaded hole 10 and back axle braking air extractor duct 29, air-pressure gauge interface 30 is communicated with back axle braking air extractor duct 29, change-over valve 51 is installed on the air-pressure gauge interface, on control cock upper shell 9 by the change-over valve interface 38 of giving vent to anger, install and carry out valve casing 39, change-over valve piston 36 is installed in carrying out valve casing 39, plug screw 37, spring 34 and freeing pipe 32, propons air tank interface 21 and the propons braking air extractor duct 27 of giving vent to anger is arranged on control valve body lower cover 33, secondary conversion piston gas port 1 is arranged on control cock upper shell 9 and carry out valve elder generation airtube 31.
Change-over valve 51 connects air-pressure gauge interface 30, change-over valve piston 43, spring 42 and cam follower 48 are installed in change-over valve housing 40, cam follower 48 joins with cam pin 49, face cam external thread sleeve 47 is installed in change-over valve housing 40 ends, plug screw 45 and check valve sheet 44 are installed in change-over valve piston 43, operating air pressure interface 46 and air extractor duct 41 are arranged on change-over valve housing 40.
Compared with the prior art, the utility model can make full use of the conversion effect of braking force and adhesive ability, shortens stopping distance and hysteresis quality, prevent the skid whipping, reduce labor intensity, improve the train stability ride comfort, wide adaptability, the random servo-actuated of operation control, safe and reliable.
Description of drawings: Fig. 1 is that the utility model structural representation: Fig. 2 is the A-A cutaway view of Fig. 1; Fig. 3 is the change-over valve constructional drawing.
1. secondarys conversion piston gas port, 2. retracing spring, 3. one-level dummy piston among the figure, 4. jump ring, 5. rubber spring, 6. fork push shaft, 7. dustproof Jiao Gai, 8. secondary dummy piston cover, 9. control cock upper shell, 1O. fixing threaded hole, 11.O RunddichtringO, 12. drain taps, the interface 13. spring, 14. back axle air tanks are given vent to anger, 15. blow off valve gate seats, 16. the one-level relay piston, 17. secondary servo dummy piston covers, 18. jump rings, the interface 19. drain tap, 20. springs, 21. propons air tanks are given vent to anger, 22. the blow off valve gate seat, 23. blow off valve bases, 24. jump rings, 25. deflation hole, 26.O RunddichtringO, 27. propons braking air extractor duct, 28.O RunddichtringO, 29. back axles braking air extractor duct, 30. air-pressure gauge interfaces, 31 carry out valve elder generation airtube, 32. variable pressure ratio pistons just, 33. control valve body lower covers, 34. spring, 35.O RunddichtringO, 36. change-over valve pistons, 37. plug screws, the interface 38. change-over valve is given vent to anger, 39. the execution valve casing, 40. change-over valve housings, 41. air extractor ducts, 42. spring, 43. the change-over valve piston, 44. check valve sheet, 45. plug screws, 46. operating air pressure interface, 47. the face cam external thread sleeve, 48. cam followers, 49. cam pins, 50. freeing pipe, 51. change-over valves.
The specific embodiment: as Fig. 1, shown in Figure 2, dustproof glue lid 7 is installed between fork push shaft 6 and the control cock upper shell 9, one-level dummy piston 3 and secondary dummy piston cover 8 are installed in control cock upper shell 9, assembling fork push shaft 6 and rubber spring 5 in one-level dummy piston 3, it is spacing that jump ring 4 is housed on one-level dummy piston 3, retracing spring 2 is housed below one-level dummy piston 3, O RunddichtringO 11 is arranged on secondary dummy piston 3, in the control cock upper shell 9 below one-level dummy piston 3 drain tap 12 is housed, blow off valve gate seat 15, spring 13 and secondary servo dummy piston cover 17, jump ring 18 is arranged below blow off valve gate seat 15, in drain tap 12 and secondary servo dummy piston cover 17, one-level relay piston 16 and O RunddichtringO 28 are housed, drain tap 19 is installed in the control valve body lower cover 33 below one-level relay piston 16, blow off valve gate seat 22 and spring 20, O RunddichtringO 26 is installed in drain tap 19 and control valve body lower cover (33), jump ring 24 and blow off valve base 23, deflation hole 25 is arranged in it, the back axle air tank interface 14 of giving vent to anger is arranged on control cock upper shell 9, fixing threaded hole 10 and back axle braking air extractor duct 29, air-pressure gauge interface 30 is communicated with back axle braking air extractor duct 29, change-over valve 51 is installed on the air-pressure gauge interface, on control cock upper shell 9 by the change-over valve interface 38 of giving vent to anger, install and carry out valve casing 39, change-over valve piston 36 is installed in carrying out valve casing 39, plug screw 37, spring 34, freeing pipe 32 and O RunddichtringO 35, propons air tank interface 21 and the propons braking air extractor duct 27 of giving vent to anger is arranged on control valve body lower cover 33, secondary conversion piston gas port 1 is arranged on control cock upper shell 9 and carry out valve elder generation airtube 31.
As shown in Figure 3, change-over valve 51 connects air-pressure gauge interface 30, change-over valve piston 43, spring 42 and cam follower 48 are installed in change-over valve housing 40, cam follower 48 joins with cam pin 49, face cam external thread sleeve 47 is installed in change-over valve housing 40 ends, plug screw 45 and check valve sheet 44 are installed in change-over valve piston 43, operating air pressure interface 46 and air extractor duct 41 are arranged on change-over valve housing 40.
Claims (2)
1. the variable pressure ratio automobile brake control cock just of a S. A., by conversion, carrying out valve and two stage braking control cock forms, it is characterized in that: dustproof Jiao Gai (7) is installed between fork push shaft (6) and the control cock upper shell (9), one-level dummy piston (3) and secondary dummy piston cover (8) are installed in control cock upper shell (9), assembling fork push shaft (6) and rubber spring (5) in one-level dummy piston (3), it is spacing that jump ring (4) is housed on one-level dummy piston (3), retracing spring (2) is housed below one-level dummy piston (3), in the control cock upper shell (9) of one-level dummy piston (3) below, drain tap (12) is housed, blow off valve gate seat (15), spring (13) and secondary servo dummy piston cover (17), jump ring (18) is arranged below blow off valve gate seat (15), in drain tap (12) and secondary servo dummy piston cover (17), one-level relay piston (16) is housed, drain tap (19) is installed in the control valve body lower cover (33) of one-level relay piston (16) below, blow off valve gate seat (22) and spring (20), blow off valve base (23) is installed in drain tap (19) and control valve body lower cover, deflation hole (25) is arranged in it, the back axle air tank interface (14) of giving vent to anger is arranged on control cock upper shell (9), fixing threaded hole (10) and back axle braking air extractor duct (29), air-pressure gauge interface (30) is communicated with back axle braking air extractor duct (29), change-over valve (51) is installed on the air-pressure gauge interface, go up by the change-over valve interface (38) of giving vent to anger at control cock upper shell (9), install and carry out valve casing (39), change-over valve piston (36) is installed in carrying out valve casing (39), plug screw (37), spring (34) and freeing pipe (32), propons air tank interface (21) and the propons braking air extractor duct (27) of giving vent to anger is arranged on control valve body lower cover (33), secondary conversion piston gas port (1) is arranged on control cock upper shell (9) and carry out the first airtube (31) of valve.
2. the variable pressure ratio automobile brake control cock just of S. A. according to claim 1, it is characterized in that: change-over valve (51) connects air-pressure gauge interface (30), change-over valve piston (43), spring (42) and cam follower (48) are installed in change-over valve housing (40), cam follower (48) joins with cam pin (49), face cam external thread sleeve (47) is installed in change-over valve housing (40) end, plug screw (45) and check valve sheet (44) are installed in change-over valve piston (43), operating air pressure interface (46) and air extractor duct (41) are arranged on change-over valve housing (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520006119 CN200951766Y (en) | 2005-05-19 | 2005-05-19 | Semiautomatic brake control valve capable of changing initial pressure ratio for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520006119 CN200951766Y (en) | 2005-05-19 | 2005-05-19 | Semiautomatic brake control valve capable of changing initial pressure ratio for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200951766Y true CN200951766Y (en) | 2007-09-26 |
Family
ID=38810063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520006119 Expired - Fee Related CN200951766Y (en) | 2005-05-19 | 2005-05-19 | Semiautomatic brake control valve capable of changing initial pressure ratio for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200951766Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629588B (en) * | 2009-06-01 | 2011-11-09 | 中国航空工业集团公司西安飞机设计研究所 | Liquid control valve with double control ports |
| CN113306537A (en) * | 2021-07-09 | 2021-08-27 | 中国农业大学 | Motor-driven air pressure regulating valve and regulating and controlling method thereof |
-
2005
- 2005-05-19 CN CN 200520006119 patent/CN200951766Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629588B (en) * | 2009-06-01 | 2011-11-09 | 中国航空工业集团公司西安飞机设计研究所 | Liquid control valve with double control ports |
| CN113306537A (en) * | 2021-07-09 | 2021-08-27 | 中国农业大学 | Motor-driven air pressure regulating valve and regulating and controlling method thereof |
| CN113306537B (en) * | 2021-07-09 | 2022-02-11 | 中国农业大学 | Motor-driven air pressure regulating valve and regulating and controlling method thereof |
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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: 20070926 |