CN103072561B - Parking braking releasing device for automobile - Google Patents
Parking braking releasing device for automobile Download PDFInfo
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- CN103072561B CN103072561B CN201310048482.3A CN201310048482A CN103072561B CN 103072561 B CN103072561 B CN 103072561B CN 201310048482 A CN201310048482 A CN 201310048482A CN 103072561 B CN103072561 B CN 103072561B
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- Valves And Accessory Devices For Braking Systems (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The invention relates to a parking braking releasing device for an automobile. The parking braking releasing device comprises an air compressor (1), wherein the air compressor (1) is connected with a drier (3) through a pressure regulating valve (2); the drier (3) is connected with a wet gas storage barrel (5); the wet gas storage barrel (5) is connected with a four-loop protection valve (6); the four-loop protection valve (6) is connected with a front two-way valve (10) through a hand brake (9); and the front two-way valve (10) is connected between two composite braking air chambers (12). The parking braking releasing device is characterized in that a four-way electric control valve (4) is connected to a pipeline between the drier (3) and the wet gas storage barrel (5); the four-way electric control valve (4) is connected with a back two-way valve (11); and the back two-way valve (11) is connected to a pipeline between the front two-way valve (10) and the composite braking air chambers (12). The parking braking releasing device has the advantages that a parking braking releasing speed is high; an original braking pipeline of a vehicle is slightly modified; braking can still be released even when air leaks from the braking pipeline; and after braking is released, braking can still be performed in emergent states.
Description
Technical field
The present invention relates to a kind of vehicle contact brake apparatus, particularly a kind of automobile parking braking decontrol.
Background technology
Diesel transportation vehicle many employings composite brake air chamber of current organizational equipment, the power source of its parking braking is from air accumulator or four-loop protection valve.Due to the problem that the gas receiver air pressure retention time after structure and manufacture reason ubiquity vehicle lay-off falls short of, after parking for a long time, vehicle air easily drops to zero, and vehicle inflatable needs to take a long time.When emergency occurs, adopt existing conventional emergent brake off method not only consuming time longer and required by having instrument and operation, will bungle the chance of winning a battle time serious.Through extensively retrieval, not yet find that there is relevant technical scheme.
Summary of the invention
The object of the invention is to solve the shortcomings such as diesel vehicle brake off time present stage length, and the automobile parking braking decontrol proposed.
To achieve these goals, present invention employs following technical scheme:
A kind of automobile parking braking decontrol, comprise air compressor machine, air compressor machine connects pressure regulator valve by pipeline; pressure regulator valve connects drier; drier connects wet gas receiver, and wet gas receiver connects four-loop protection valve, and four-loop protection valve is connected with hand braking with front gas receiver, rear gas receiver again respectively.Two-way valve before hand braking connection, gas receiver after front two-way valve is connected by relay valve, front two-way valve is connected between two composite braking air chambers by pipeline again, connecting pipe between relay valve and front two-way valve is connected with the pipeline between two composite braking air chambers, it is characterized in that: the pipeline between drier and wet gas receiver connects four-way electrically-controlled valve, two-way valve after four-way electrically-controlled valve is connected by pipeline.Rear two-way valve is arranged on the pipeline between front two-way valve and composite braking air chamber.
On the basis of technique scheme, following further technical scheme can be had:
Described four-way electrically-controlled valve comprises valve body, air inlet is provided with in the front end of valve body, air inlet connects drier by pipeline, gas receiver gas outlet and spring brake cylinder gas outlet is respectively equipped with in the rear end of valve body, gas receiver gas outlet is connected by pipeline with wet gas receiver, and spring brake cylinder gas outlet is connected by pipeline with rear two-way valve.Exhaust outlet is provided with in the side of valve body.In valve body, be provided with control valve, valve body is run through in one end of control valve, the other end connects drain tap, and drain tap matches with exhaust outlet, and drain tap is connected on valve body by exhaust spring, and control valve is also provided with through hole.Dividing plate and rear bulkhead before the inside of valve body is respectively equipped with, rear bulkhead is provided with level pressure valve, and constant pressure valve door is connected on valve body by level pressure spring, and control valve and front dividing plate and rear bulkhead are sealed and matched.
Described four-way electrically-controlled valve connected electromagnetic valve, magnetic valve connects power supply and pressure switch respectively by wire, pressure switch is arranged on rear gas receiver, pressure switch connects brake switch by wire, brake switch is arranged on the pedal in driver's cabin, brake switch connects manual switch by wire, and manual switch is arranged in driver's cabin, and manual switch passes through wire connecting power.
The invention has the advantages that: it is fast that this device removes parking braking speed; Change little to the brake piping of former vehicle; Still can brake off during brake piping gas leakage; After brake off, run into emergency still can brake.
Accompanying drawing explanation
Fig. 1 is basic structure schematic diagram of the present invention;
Fig. 2 is the structure chart of four-way electrically-controlled valve;
Fig. 3 is the control principle drawing of magnetic valve.
Detailed description of the invention
As shown in Figure 1, a kind of diesel vehicle parking braking Rapid reversal device provided by the invention, comprise air compressor machine 1, air compressor machine 1 connects pressure regulator valve 2 by pipeline, pressure regulator valve 2 connects drier 3, drier 3 connects wet gas receiver 5, wet gas receiver 5 connects four-loop protection valve 6, four-loop protection valve 6 again respectively with front gas receiver 7a, rear gas receiver 7b is connected with hand braking 9, hand braking 9 connect front two-way valve 10, front two-way valve 10 connects rear gas receiver 7b by relay valve 8, front two-way valve 10 is connected on the pipeline between two composite braking air chambers 12 by pipeline again, connecting pipe between relay valve 8 and front two-way valve 10 is connected with the pipeline between two composite braking air chambers 12, it is characterized in that:
Pipeline between drier 3 and wet gas receiver 5 connects four-way electrically-controlled valve 4, two-way valve 11 after four-way electrically-controlled valve 4 is connected by pipeline.Rear two-way valve 11 is arranged on the pipeline between front two-way valve 10 and composite braking air chamber 12.
As shown in Figure 2, described four-way electrically-controlled valve 4 comprises valve body 4m, air inlet 4a is provided with in the front end of valve body 4m, air inlet 4a connects drier 3 by pipeline, gas receiver gas outlet 4b and spring brake cylinder gas outlet 4c is respectively equipped with in the rear end of valve body 4m, gas receiver gas outlet 4b is connected by pipeline with wet gas receiver 5, spring brake cylinder gas outlet 4c is connected by pipeline with rear two-way valve 11, exhaust outlet 4d is provided with in the side of valve body 4m, control valve 4e is provided with in valve body 4m, valve body 4m is run through in one end of control valve 4e, the other end connects drain tap 4f, drain tap 4f matches with exhaust outlet 4d, drain tap 4f is connected on valve body 4m by exhaust spring 4i, control valve 4e is also provided with through hole 4g, dividing plate N and rear bulkhead M before the inside of valve body 4m is respectively equipped with, rear bulkhead M is provided with level pressure valve 4j, level pressure valve 4j is connected on valve body 4m by level pressure spring 4h, control valve 4e and front dividing plate N and rear bulkhead M is sealed and matched and four-way electrically-controlled valve 4 is divided into A, B, C tri-chambeies.A chamber can be communicated with by through hole 4g with C chamber with A chamber with B chamber.
Control valve 4e connected electromagnetic valve 13 in described four-way electrically-controlled valve 4.As shown in Figure 3, described magnetic valve 13 connects power supply 14 and pressure switch 15 respectively by wire, pressure switch 15 is arranged on rear gas receiver 7b, pressure switch 15 connects brake switch 16 by wire, brake switch 16 is arranged on the pedal in driver's cabin, brake switch 16 connects manual switch 17 by wire, and manual switch 17 is arranged in driver's cabin, and manual switch 17 is by wire connecting power 14.
operation principle
When the gas of gas receiver is not enough, when diesel vehicle needs emergency unchaining to brake, press manual switch by solenoid valves, magnetic valve pulls the control valve of four-way electrically-controlled valve to move down.Gas enters A chamber through the through hole of control valve by air inlet and enters C chamber, pressing down exhaust spring while control valve moves down makes drain tap close, gas enters rear two-way valve (effect of rear two-way valve controls to be inflated to spring brake cylinder by four-way electrically-controlled valve or former pipeline) by spring brake chamber gas outlet, inflates being entered by rear two-way valve to spring brake chamber.Because spring brake chamber volume is little, inflate complete brake release very soon, vehicle now can travel.When the gas of gas receiver is sufficient, its pressure produced is comparatively large, and pressure switch opens magnetic valve power-off, and gas enters A chamber through the through hole of control valve by air inlet and enters B chamber, and gas is according to original path brake off.
When after brake release, when C chamber reaches certain pressure, under the effect of gas pressure, promote the elastic force that level pressure valve overcomes level pressure spring, make level pressure valve open, gas enters B chamber by C chamber, now can inflate gas receiver.
If (in gas receiver air pressure deficiency situation) needs braking after emergency unchaining braking, step on brake pedal, under brake switch effect, four-way electrically-controlled valve is closed, now, under exhaust spring effect, drain tap is opened, and spring braking gas in the jar enters C chamber by gas outlet under spring pressure, discharge air by air bleeding valve e, vehicle produces braking.
Claims (3)
1. an automobile parking braking decontrol, comprise air compressor machine (1), air compressor machine (1) connects pressure regulator valve (2) by pipeline, pressure regulator valve (2) connects drier (3), drier (3) connects wet gas receiver (5), wet gas receiver (5) connects four-loop protection valve (6), four-loop protection valve (6) is connected with hand braking (9) with rear gas receiver (7b) again respectively, hand braking (9) connect front two-way valve (10), gas receiver (7b) after front two-way valve (10) is connected by relay valve (8), front two-way valve (10) is connected between two composite braking air chambers (12) by pipeline again, it is characterized in that:
A, pipeline between drier (3) and wet gas receiver (5) connect four-way electrically-controlled valve (4), two-way valve (11) after four-way electrically-controlled valve (4) is connected by pipeline;
B, rear two-way valve (11) are arranged on the pipeline between front two-way valve (10) and composite braking air chamber (12);
C, described four-way electrically-controlled valve (4) comprises valve body (4m), air inlet (4a) is provided with in the front end of valve body (4m), air inlet (4a) connects drier (3) by pipeline, gas receiver gas outlet (4b) and spring brake cylinder gas outlet (4c) is respectively equipped with in the rear end of valve body (4m), gas receiver gas outlet (4b) is connected by pipeline with wet gas receiver (5), spring brake cylinder gas outlet (4c) is connected by pipeline with rear two-way valve (11), exhaust outlet (4d) is provided with in the side of valve body (4m), control valve (4e) is provided with in valve body (4m), valve body (4m) is run through in one end of control valve (4e), the other end connects drain tap (4f), drain tap (4f) matches with exhaust outlet (4d), drain tap (4f) is connected on valve body (4m) by exhaust spring (4i), control valve (4e) is also provided with through hole (4g), front dividing plate (N) and rear bulkhead (M) is respectively equipped with in the inside of valve body (4m), rear bulkhead (M) is provided with level pressure valve (4j), level pressure valve (4j) is connected on valve body (4m) by level pressure spring (4h), control valve (4e) is sealed and matched with front dividing plate (N) and rear bulkhead (M).
2. according to a kind of automobile parking braking decontrol described in claim 1, it is characterized in that: described four-way electrically-controlled valve (4) connected electromagnetic valve (13).
3. according to a kind of automobile parking braking decontrol described in claim 2, it is characterized in that: described magnetic valve (13) connects power supply (14) and pressure switch (15) respectively by wire, pressure switch (15) is arranged on rear gas receiver (7b), pressure switch (15) connects brake switch (16) by wire, brake switch (16) is arranged on the pedal in driver's cabin, brake switch (16) connects manual switch (17) by wire, manual switch (17) is arranged in driver's cabin, manual switch (17) is by wire connecting power (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310048482.3A CN103072561B (en) | 2013-02-07 | 2013-02-07 | Parking braking releasing device for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310048482.3A CN103072561B (en) | 2013-02-07 | 2013-02-07 | Parking braking releasing device for automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103072561A CN103072561A (en) | 2013-05-01 |
| CN103072561B true CN103072561B (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310048482.3A Expired - Fee Related CN103072561B (en) | 2013-02-07 | 2013-02-07 | Parking braking releasing device for automobile |
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| Country | Link |
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| CN (1) | CN103072561B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260717B (en) * | 2014-09-26 | 2017-06-16 | 驻马店中集华骏车辆有限公司 | The improper brake alarm device of semitrailer |
| CN106671963B (en) * | 2017-01-16 | 2023-09-15 | 四川省客车制造有限责任公司 | Electric control type double-insurance parking braking system and vehicle comprising same |
| CN114771479B (en) * | 2022-04-25 | 2023-07-14 | 一汽解放汽车有限公司 | Braking system, control method thereof and vehicle |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3815939B2 (en) * | 2000-03-08 | 2006-08-30 | 日野自動車株式会社 | Brake device for tractor / trailer connected vehicle |
| DE20122779U1 (en) * | 2000-09-14 | 2007-08-30 | Wabco Gmbh | Brake valve for trailers has first no-return valve rendered ineffective when supply connection has no pressure |
| CN2811085Y (en) * | 2005-06-22 | 2006-08-30 | 中国重型汽车集团有限公司 | Emergency braking-off device |
| ITTO20050498A1 (en) * | 2005-07-20 | 2007-01-21 | Knorr Bremse Systeme | PNEUMATIC SYSTEM FOR BRAKING A COMMERCIAL VEHICLE |
| US7690735B2 (en) * | 2006-05-12 | 2010-04-06 | Bendix Commercial Vehicle Systems Llc | Service work brake arrangement |
| CN202608757U (en) * | 2012-04-25 | 2012-12-19 | 北汽福田汽车股份有限公司 | Emergency brake and parking brake device and air-pressure braked vehicle |
| CN202657018U (en) * | 2012-05-07 | 2013-01-09 | 郑州宇通客车股份有限公司 | Parking braking system |
| CN203094041U (en) * | 2013-02-07 | 2013-07-31 | 范正伟 | Parking braking quick removing device for diesel vehicle |
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2013
- 2013-02-07 CN CN201310048482.3A patent/CN103072561B/en not_active Expired - Fee Related
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| CN103072561A (en) | 2013-05-01 |
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| CB03 | Change of inventor or designer information |
Inventor after: Qian Baoduo Inventor after: Fan Zhengwei Inventor after: Guo Yu Inventor before: Fan Zhengwei Inventor before: Guo Yu |
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Free format text: CORRECT: INVENTOR; FROM: FAN ZHENGWEI GUO YU TO: QIAN BAODUO FAN ZHENGWEI GUO YU |
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