CN203439021U - Double-pass quick release relay valve - Google Patents
Double-pass quick release relay valve Download PDFInfo
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- CN203439021U CN203439021U CN201320500651.8U CN201320500651U CN203439021U CN 203439021 U CN203439021 U CN 203439021U CN 201320500651 U CN201320500651 U CN 201320500651U CN 203439021 U CN203439021 U CN 203439021U
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- inlet chamber
- valve
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- back cavity
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Abstract
The utility model provides a double-pass quick release relay valve and belongs to the technical field of machinery and helps to overcome the problem that the double-pass quick release relay valve is high in production cost and large in occupied space. The double-pass quick release relay valve comprises a hand-operated valve air inlet chamber, a brake valve air inlet chamber, a brake front chamber air inlet chamber and a brake rear chamber air inlet chamber. A hand-operated valve air supply opening is arranged on the hand-operated valve air inlet chamber in which a quick release mechanism is arranged. The quick release mechanism is capable of controlling gas to enter and go out from the brake rear chamber air inlet chamber. One end of the brake rear chamber air inlet chamber is provided with a rear chamber joint connected with the brake rear chamber air inlet chamber and the other end of the brake rear chamber air inlet chamber is provided with an air storage cylinder air supply opening. One end of the brake valve air inlet chamber is provided with a brake valve air supply opening and a relay member is arranged in the brake valve air inlet chamber. After the brake valve air inlet chamber supplies air to the relay member, the brake front chamber air inlet chamber is enabled to be communicated with the brake rear chamber air inlet chamber. A front chamber joint communicated with the brake front chamber air inlet chamber is arranged on the brake front chamber air inlet chamber. The double-pass quick release relay valve is compact in structure and simple in entrucking operation.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to the bi-pass quick-releasing relay valve using on a kind of automobile.
Background technology
Due to the air braking system of automobile powerful, the advantage such as braking strength is large that is swift in response, brakes, in big-and-middle-sized lorry, passenger vehicle, be widely used.Wherein, rapid release valve is used for to compressed air brake cylinder input brake air pressure, and can promptly the pressurized air in compressed air brake cylinder be entered to atmosphere, rapidly brake off.Relay valve belongs to a part for automobile air brake brake system.Relay valve admission port is connected air receiver, and air extractor duct connects braking air cavity.When stepping on brake pedal, the output pressure of brake activation valve is as the control presssure input of relay valve, under control presssure effect, air inlet valve is pushed open, so pressurized air just directly enters braking air cavity by admission port by air receiver, and the brake activation valve of need not flowing through, this has shortened the loading line of braking air cavity greatly, has accelerated the gas replenishment process of air cavity.Double-way check valve door can be avoided service brake and hand braking overlap action.
In existing vehicle, double-way check valve, rapid release valve and relay valve are independent part conventionally, are independently arranged on vehicle respectively.Cause like this vehicle interior complex structure, make its entrucking operation various, cost compare is high, and takies too much installing space.
Its publication number of Chinese patent CN2767267Y provide a kind of " relay valve ", it is mainly comprised of relay valve valve body, valve body is divided into upper valve body and lower valve body, and spring perch, spring, relay piston, valve, valve spring, spring perch and exhaust seat are installed successively from top to bottom in valve body.On lower valve body, be provided with two admission ports, an exhausr port and four air extractor ducts that are rectangular in shape between two and distribute.Upper valve body is provided with a vent line of controlling gas port and a plagioclase shape, communicates with one of them admission port in lower valve body.Can find out, it is an independently part, and brake system of car, in order to realize stable braking, also needs additionally to arrange rapid release valve and double-way check valve.It is high that it still exists cost compare, takies the problem of too much installing space.
Summary of the invention
The purpose of this utility model is the problems referred to above that exist for prior art, a kind of compact conformation is provided, can simplifies the bi-pass quick-releasing relay valve of entrucking operation.
The purpose of this utility model can realize by following technical proposal: a kind of bi-pass quick-releasing relay valve, comprise valve body, it is characterized in that, in described valve body, there is hand valve inlet chamber, brake activation valve inlet chamber, drg ante-chamber inlet chamber and drg back cavity inlet chamber, on above-mentioned hand valve inlet chamber, there is the hand valve air supply opening communicating with it, in described hand valve inlet chamber, there is fast laying mechanism, when hand valve air feed, above-mentioned fast laying mechanism is closed and can be made gas enter drg back cavity inlet chamber, when fast laying mechanism is opened, drg back cavity inlet chamber can communicate with the external world, the back cavity interface of described drg back cavity inlet chamber one end for being connected with drg back cavity, the described drg back cavity inlet chamber other end has air receiver air supply opening, one end of described brake activation valve inlet chamber has brake activation valve air supply opening, in described brake activation valve inlet chamber, there is servo part and can make drg ante-chamber inlet chamber and drg back cavity inlet chamber be connected after the above-mentioned servo part action of brake activation valve inlet chamber air inlet, on described drg ante-chamber inlet chamber, there is the ante-chamber interface that can be connected with drg ante-chamber.
During driving, the gas at hand valve place enters hand valve inlet chamber by hand valve air supply opening, and under gas pressure, fast laying mechanism is closed.Now, gas enters drg back cavity inlet chamber, and last gas enters drg back cavity by back cavity interface makes vehicle brake off state.
While needing to brake in driving process, brake activation valve is opened, and brake activation valve place gas enters brake activation valve inlet chamber by brake activation valve air supply opening.Gas acts on servo part drg ante-chamber inlet chamber and drg back cavity inlet chamber is connected, and now gas enters drg ante-chamber inlet chamber, finally by ante-chamber interface, enters drg chamber ante-chamber, and vehicle is braked.
During hand brake, during namely emergency brake, hand valve stops air feed, and fast laying mechanism is opened, the gas at drg back cavity place through drg back cavity inlet chamber directly discharged to the external world.
In above-mentioned bi-pass quick-releasing relay valve, described fast laying mechanism comprises puts diaphragm and freeing pipe soon, the inner of described freeing pipe is in valve body and it is between hand valve inlet chamber and drg back cavity inlet chamber, the outer end of described freeing pipe communicates with the external world, the described diaphragm of putting is soon positioned at freeing pipe the inner, and when hand valve inlet chamber air feed, the above-mentioned diaphragm of putting soon can be by the inner sealing of freeing pipe.
When hand valve inlet chamber enters gas, be subject to gas pressure to put soon diaphragm and abut in freeing pipe the inner, by the inner sealing of freeing pipe.
In above-mentioned bi-pass quick-releasing relay valve, described fast laying mechanism comprises the exhaust passage of putting soon diaphragm and valve inner, the inner of described exhaust passage is in valve body and it is between hand valve inlet chamber and drg back cavity inlet chamber, the outer end of described exhaust passage communicates with the external world, the described diaphragm of putting is soon positioned at the inner, exhaust passage, and when hand valve inlet chamber air feed, the above-mentioned diaphragm of putting soon can be by the inner sealing in exhaust passage.
When hand valve inlet chamber enters gas, be subject to gas pressure to put soon diaphragm and abut in the inner, exhaust passage, by the inner sealing in exhaust passage.
In above-mentioned bi-pass quick-releasing relay valve, in described hand valve inlet chamber, there is limited step, described limited step place has one-way piston, and the gas that hand valve inlet chamber enters can make one-way piston be positioned at limited step place hand valve inlet chamber and drg ante-chamber inlet chamber are divided into two independently cavitys.
Be subject to gas pressure, one-way piston is resisted against behind limited step place, and stable the acting on soon of gas that hand valve inlet chamber is entered put on diaphragm, thereby guarantees that putting soon diaphragm seals freeing pipe.
In above-mentioned bi-pass quick-releasing relay valve, described servo part comprises the relay piston that is positioned at valve body, relay piston is divided into neighbouring brake activation valve inlet chamber and drg ante-chamber inlet chamber by valve inner, in described drg back cavity inlet chamber, there is air inlet valve, air inlet valve is divided into two independently cavitys by drg ante-chamber inlet chamber and drg back cavity inlet chamber, when the above-mentioned relay piston of brake activation valve inlet chamber air inlet can move down and drg ante-chamber inlet chamber and drg back cavity inlet chamber be communicated inlet open.
Brake activation valve inlet chamber passes into after gas, and gas pressure is on relay piston, because brake activation valve inlet chamber is positioned at drg ante-chamber inlet chamber top.Therefore, relay piston moves down, and the relay piston after moving down is opened check valve.The gas of air receiver enters drg ante-chamber through drg back cavity inlet chamber, drg ante-chamber inlet chamber successively.Thereby realize service brake.
In above-mentioned bi-pass quick-releasing relay valve, described air inlet valve comprises Connection Block and the tubular secondary freeing pipe being connected in valve body, between described Connection Block and secondary freeing pipe, there is spring, under the elastic force effect of spring, secondary freeing pipe the inner is resisted against on valve body and forms sealing, and described secondary freeing pipe outer end is positioned at valve body outside.
Under the elastic force effect of spring, on secondary freeing pipe, move drg back cavity inlet chamber is not communicated with drg ante-chamber inlet chamber.Once secondary freeing pipe overcomes spring force move down after, above-mentioned drg back cavity inlet chamber and drg ante-chamber inlet chamber are just communicated with.
In above-mentioned bi-pass quick-releasing relay valve, described secondary freeing pipe the inner has seal ring, described valve inner has can be resisted against the inner sealed step of secondary freeing pipe, and above-mentioned relay piston presses down gap between rear sealed step and relay piston by secondary freeing pipe is connected air receiver and drg ante-chamber inlet chamber.
By seal ring, make to form between secondary freeing pipe the inner and valve body good sealing.Certainly, once after the inner disengaging of secondary freeing pipe, just can make air receiver and drg ante-chamber inlet chamber be connected by above-mentioned gap.
In above-mentioned bi-pass quick-releasing relay valve, described exhaust pipe lower part has guide part, and above-mentioned relay piston is enclosed within on guide part and between has seal ring.
By guide part, relay piston stably translational can be made, by seal ring, the leak tightness of junction between the two can be increased.
In above-mentioned bi-pass quick-releasing relay valve, between described relay piston and valve body, there is seal ring.
Same, sealing circle can increase the leak tightness between piston and valve body.
Compared with prior art, this bi-pass quick-releasing relay valve owing to having integrated rapid release valve, relay valve and double-way check valve on a valve body, and therefore, it has simplified car assembling operation, has reduced installation workpiece.
In addition, under the effect of double-way check valve, when hand brake and service brake, can also avoid both overlap actions, there is higher practical value.
Accompanying drawing explanation
Fig. 1 is the contour structures schematic diagram of this bi-pass quick-releasing relay valve.
Fig. 2 is the sectional structure schematic diagram of this bi-pass quick-releasing relay valve.
Fig. 3 is the sectional structure schematic diagram of this bi-pass quick-releasing relay valve other direction.
In figure, 1, valve body; 1a, sealed step; 2, hand valve inlet chamber; 2a, limited step; 2b, hand valve air supply opening; 3, brake activation valve inlet chamber; 3a, brake activation valve air supply opening; 4, drg ante-chamber inlet chamber; 4a, ante-chamber interface; 5, drg back cavity inlet chamber; 5a, air receiver air supply opening; 5b, back cavity interface; 6, put soon diaphragm; 7, freeing pipe; 7a, guide part; 8, one-way piston; 9, relay piston; 10, Connection Block; 11, secondary freeing pipe; 12, spring.
The specific embodiment
As shown in Figure 1, the valve body 1 that inside of this bi-pass quick-releasing relay valve is cavity.In valve body 1, there is hand valve inlet chamber 2, brake activation valve inlet chamber 3, drg ante-chamber inlet chamber 4 and drg back cavity inlet chamber 5.
As shown in Figures 2 and 3, one end of hand valve inlet chamber 2 has hand valve air supply opening 2b and it can join with hand valve, hand valve inlet chamber 2 middle parts have fast laying mechanism, when hand valve air feed, above-mentioned fast laying mechanism is closed and can be made gas enter drg back cavity inlet chamber 5, and when fast laying mechanism is opened, drg back cavity inlet chamber 5 can communicate with the external world.
Drg back cavity inlet chamber 5 one end have back cavity interface 5b and back cavity interface 5b can be connected with drg back cavity, and drg back cavity inlet chamber 5 other ends have air receiver air supply opening 5a and air receiver air supply opening 5a and air receiver and are connected.
One end of brake activation valve inlet chamber 3 has brake activation valve air supply opening 3a and brake activation valve air supply opening 3a and brake activation valve and joins, and has servo part and can make drg ante-chamber inlet chamber 4 and drg back cavity inlet chamber 5 be connected after the above-mentioned servo part action of brake activation valve inlet chamber 3 air inlet in brake activation valve inlet chamber 3.On drg ante-chamber inlet chamber 4, there is the ante-chamber interface 4a that can be connected with drg ante-chamber.
Fast laying mechanism comprises puts diaphragm 6 and freeing pipe 7 soon, the inner of freeing pipe 7 is in valve body 1 and it is between hand valve inlet chamber 2 and drg back cavity inlet chamber 5, the outer end of freeing pipe 7 communicates with the external world, put soon diaphragm 6 and be positioned at freeing pipe 7 the inners, when hand valve inlet chamber 2 air feed, the above-mentioned diaphragm 6 of putting soon can be by the inner sealing of freeing pipe 7.According to actual conditions, also can adopt the exhaust passage that is positioned at valve body 1 to replace freeing pipe 7.
In hand valve inlet chamber 2, there is limited step 2a, limited step 2a place has one-way piston 8, and the gas that hand valve inlet chamber 2 enters can make one-way piston 8 be positioned at limited step 2a place hand valve inlet chamber 2 and drg ante-chamber inlet chamber 4 are divided into two independently cavitys.
Servo part comprises the relay piston 9 that is positioned at valve body 1, relay piston 9 is neighbouring brake activation valve inlet chamber 3 and drg ante-chamber inlet chamber 4 by valve body 1 interior separation, in drg back cavity inlet chamber 5, there is air inlet valve, air inlet valve is divided into two independently cavitys by drg ante-chamber inlet chamber 4 and drg back cavity inlet chamber 5, when the above-mentioned relay piston 9 of brake activation valve inlet chamber 3 air inlet can move down and drg ante-chamber inlet chamber 4 and drg back cavity inlet chamber 5 be communicated inlet open.
Air inlet valve comprises Connection Block 10 and the tubular secondary freeing pipe 11 being connected in valve body 1, between Connection Block 10 and secondary freeing pipe 11, has spring 12, and under the elastic force effect of spring 12, secondary freeing pipe 11 the inners are resisted against on valve body 1 and form and seal.Secondary freeing pipe 11 outer ends are positioned at valve body 1 outside.Secondary freeing pipe 11 the inners have seal ring, valve body 1 inside has can be resisted against the inner sealed step 1a of secondary freeing pipe 11, and relay piston 9 presses down gap between rear sealed step 1a and relay piston 9 by secondary freeing pipe 11 is connected air receiver and drg ante-chamber inlet chamber 4.
In addition, in order to make the stable movement of relay piston 9, in freeing pipe 7 bottoms, have guide part 7a, relay piston 9 is enclosed within guide part 7a above and between has seal ring.Meanwhile, between relay piston 9 and valve body 1, also there is seal ring.
During normal vehicle operation, the gas at hand valve place enters hand valve inlet chamber 2 by hand valve air supply opening 2b, under gas pressure, one-way piston 8 moves to limited step 2a place, under gas pressure, put soon diaphragm 6 and be close to freeing pipe 7 the inners, now, gas enters drg back cavity from drg back cavity inlet chamber 5, now the state of vehicle in brake off.
While needing to brake in driving process, operator opens brake activation valve, and brake activation valve place gas enters brake activation valve inlet chamber 3 by brake activation valve air supply opening 3a.Gas acts on relay piston 9, and relay piston 9 is moved down, and the relay piston 9 moving down promotes secondary freeing pipe 11, and secondary freeing pipe 11 the inners are departed from sealing place of valve body 1, departs from sealed step 1a that is:.Now, drg ante-chamber inlet chamber 4 is connected with drg back cavity inlet chamber 5, and gas enters drg ante-chamber inlet chamber 4, finally enters drg chamber ante-chamber, and vehicle is braked.
During hand brake, during namely emergency brake, hand valve stops air feed, and fast laying mechanism is opened and put soon diaphragm 6 and depart from freeing pipe 7 the inners, the gas at drg back cavity place through drg back cavity inlet chamber 5, freeing pipe 7, secondary freeing pipe 11 directly discharged to the external world.
When service brake and hand brake are carried out simultaneously, because hand valve inlet chamber gas is emptying.The gas that brake activation valve place enters enters realizes above-mentioned service brake, and still, a part of gas enters hand valve inlet chamber 2 in addition, and promotion one-way piston 8 moves closes hand valve inlet chamber 2.Actv. has been avoided service brake and hand brake overlap action.
Claims (9)
1. a bi-pass quick-releasing relay valve, comprise valve body (1), it is characterized in that, in described valve body (1), there is hand valve inlet chamber (2), brake activation valve inlet chamber (3), drg ante-chamber inlet chamber (4) and drg back cavity inlet chamber (5), on above-mentioned hand valve inlet chamber (2), there is the hand valve air supply opening (2b) communicating with it, in described hand valve inlet chamber (2), there is fast laying mechanism, when hand valve air feed, above-mentioned fast laying mechanism is closed and can be made gas enter drg back cavity inlet chamber (5), when fast laying mechanism is opened, drg back cavity inlet chamber (5) can communicate with the external world, the back cavity interface (5b) of described drg back cavity inlet chamber (5) one end for being connected with drg back cavity, described drg back cavity inlet chamber (5) other end has air receiver air supply opening (5a), one end of described brake activation valve inlet chamber (3) has brake activation valve air supply opening (3a), in described brake activation valve inlet chamber (3), there is servo part and can make drg ante-chamber inlet chamber (4) and drg back cavity inlet chamber (5) be connected after the above-mentioned servo part action of brake activation valve inlet chamber (3) air inlet, on described drg ante-chamber inlet chamber (4), there is the ante-chamber interface (4a) that can be connected with drg ante-chamber.
2. bi-pass quick-releasing relay valve according to claim 1, it is characterized in that, described fast laying mechanism comprises puts diaphragm (6) and freeing pipe (7) soon, the inner of described freeing pipe (7) is positioned at valve body (1) and it is positioned between hand valve inlet chamber (2) and drg back cavity inlet chamber (5), the outer end of described freeing pipe (7) communicates with the external world, the described diaphragm (6) of putting is soon positioned at freeing pipe (7) the inner, and when hand valve inlet chamber (2) air feed, the above-mentioned diaphragm (6) of putting soon can be by the inner sealing of freeing pipe (7).
3. bi-pass quick-releasing relay valve according to claim 1, it is characterized in that, described fast laying mechanism comprises puts diaphragm (6) and the inner exhaust passage of valve body (1) soon, the inner of described exhaust passage is positioned at valve body (1) and it is positioned between hand valve inlet chamber (2) and drg back cavity inlet chamber (5), the outer end of described exhaust passage communicates with the external world, the described diaphragm (6) of putting is soon positioned at the inner, exhaust passage, and when hand valve inlet chamber (2) air feed, the above-mentioned diaphragm (6) of putting soon can be by the inner sealing in exhaust passage.
4. according to the bi-pass quick-releasing relay valve described in claim 1 or 2 or 3, it is characterized in that, in described hand valve inlet chamber (2), there is limited step (2a), described limited step (2a) locates to have one-way piston (8), and the gas that hand valve inlet chamber (2) enters can make one-way piston (8) be positioned at limited step (2a) to locate hand valve inlet chamber (2) and drg ante-chamber inlet chamber (4) to be divided into two independently cavitys.
5. according to the bi-pass quick-releasing relay valve described in claim 1 or 2 or 3, it is characterized in that, described servo part comprises the relay piston (9) that is positioned at valve body (1), relay piston (9) is neighbouring brake activation valve inlet chamber (3) and drg ante-chamber inlet chamber (4) by valve body (1) interior separation, in described drg back cavity inlet chamber (5), there is air inlet valve, air inlet valve is divided into two independently cavitys by drg ante-chamber inlet chamber (4) and drg back cavity inlet chamber (5), when the above-mentioned relay piston of brake activation valve inlet chamber (3) air inlet (9) can move down and drg ante-chamber inlet chamber (4) and drg back cavity inlet chamber (5) be communicated inlet open.
6. bi-pass quick-releasing relay valve according to claim 5, it is characterized in that, described air inlet valve comprises Connection Block (10) and the tubular secondary freeing pipe (11) being connected in valve body (1), between described Connection Block (10) and secondary freeing pipe (11), there is spring (12), under the elastic force effect of spring (12), secondary freeing pipe (11) the inner is resisted against the upper formation sealing of valve body (1), and described secondary freeing pipe (11) outer end is positioned at valve body (1) outside.
7. bi-pass quick-releasing relay valve according to claim 6, it is characterized in that, described secondary freeing pipe (11) the inner has seal ring, described valve body (1) inside has can be resisted against the inner sealed step of secondary freeing pipe (11) (1a), and above-mentioned relay piston (9) presses down gap between rear sealed step (1a) and relay piston (9) by secondary freeing pipe (11) is connected air receiver and drg ante-chamber inlet chamber (4).
8. bi-pass quick-releasing relay valve according to claim 5, is characterized in that, described freeing pipe (7) bottom has guide part (7a), and above-mentioned relay piston (9) is enclosed within guide part (7a) above and between has seal ring.
9. bi-pass quick-releasing relay valve according to claim 5, is characterized in that, between described relay piston (9) and valve body (1), has seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320500651.8U CN203439021U (en) | 2013-08-16 | 2013-08-16 | Double-pass quick release relay valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320500651.8U CN203439021U (en) | 2013-08-16 | 2013-08-16 | Double-pass quick release relay valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203439021U true CN203439021U (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320500651.8U Withdrawn - After Issue CN203439021U (en) | 2013-08-16 | 2013-08-16 | Double-pass quick release relay valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203439021U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395415A (en) * | 2013-08-16 | 2013-11-20 | 浙江福尔加机械有限公司 | Double-pass quick release relay valve |
| CN104386056A (en) * | 2014-12-03 | 2015-03-04 | 瑞立集团瑞安汽车零部件有限公司 | Trailer relief valve |
| CN105300629A (en) * | 2015-10-15 | 2016-02-03 | 宁波新合博园林机械有限公司 | In-tube air tightness pre-detection device |
-
2013
- 2013-08-16 CN CN201320500651.8U patent/CN203439021U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395415A (en) * | 2013-08-16 | 2013-11-20 | 浙江福尔加机械有限公司 | Double-pass quick release relay valve |
| CN103395415B (en) * | 2013-08-16 | 2015-11-04 | 浙江福尔加机械有限公司 | A kind of bi-pass quick-releasing relay valve |
| CN104386056A (en) * | 2014-12-03 | 2015-03-04 | 瑞立集团瑞安汽车零部件有限公司 | Trailer relief valve |
| CN105300629A (en) * | 2015-10-15 | 2016-02-03 | 宁波新合博园林机械有限公司 | In-tube air tightness pre-detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140219 Effective date of abandoning: 20151104 |
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| AV01 | Patent right actively abandoned |