CN201261462Y - Duplex relay valve - Google Patents
Duplex relay valve Download PDFInfo
- Publication number
- CN201261462Y CN201261462Y CNU2008200649337U CN200820064933U CN201261462Y CN 201261462 Y CN201261462 Y CN 201261462Y CN U2008200649337 U CNU2008200649337 U CN U2008200649337U CN 200820064933 U CN200820064933 U CN 200820064933U CN 201261462 Y CN201261462 Y CN 201261462Y
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- valve
- relay valve
- piston
- relay
- rapid release
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Abstract
The utility model relates to a duplex type relay valve, which comprises a quick lowering valve body, a bidirectional valve body and a relay valve body, wherein, the quick lowering valve body is provided with a quick lowering valve air inlet, a quick lowering valve output port, a quick lowering valve air flue, a valve plate and a quick lowering valve atmospheric output port; two ends of the bidirectional valve body are provided with a bidirectional valve first air inlet output port and a bidirectional valve second air inlet output port respectively; a bidirectional valve air output port is further arranged on the bidirectional valve body; a bidirectional valve air flue is arranged between the bidirectional valve first air inlet output port and the bidirectional valve second air inlet output port; a bidirectional valve pneumatic piston is arranged in the bidirectional valve air flue; the relay valve body is provided with a relay valve first piston, a relay valve second piston, a relay valve second piston offsetting spring, a relay valve air flue, a relay valve vent, a relay valve first air inlet, a relay valve second air inlet, a relay valve third air inlet and a relay valve air output port; the relay valve first piston is provided with a relay valve first piston through cavity; and the relay valve second piston is provided with a relay valve second piston through cavity.
Description
Technical field
The utility model relates to a kind of automobile compressed air brake relay valve, especially a kind of compound relay valve.
Background technology
Conventional brake is that braking during standstill pins transmission shaft, enters compressed air brake cylinder by pressurized air during service brake and pins wheel.When braking during standstill or transmission shaft mechanical breakdown, braking during standstill is malfunctioning; Service brake is malfunctioning when the fault of any one position of air pump, pipeline, air receiver, brake activation valve, and the brake of dying just can effectively be avoided these danger.Existing relay valve generally is used for the compressed air brake system of brake system of car, and especially the mode of stopping to die is used in the emergency brake system of medium-and-large-sized car.The emergency brake system of this car is with the piston one side in the brute spring pushing tow brake air chamber at ordinary times, allow pull bar one end be in normal braking state, when vehicle will travel, chaufeur pine braking during standstill be exactly one to the gas filed action of pull bar one end cavity, must reach certain air pressure could promote the piston another side and back down spring (overcoming the thrust of spring) pulling pull bar, just braking during standstill is come loose, just can travel.Secondly, in the time of need carrying out braking during standstill, the gas replenishment process of closing braking during standstill by chaufeur just allows the high pressure gas of braking during standstill handlebar pull bar one end cavity emit, and simultaneously to promote pull bar locked brake for piston in the pushing tow brake air chamber to allow brute spring reset.In addition, air pressure is crossed when hanging down and also can be produced the brake effect in the driving, has guaranteed traffic safety.Brake with the obvious advantage aspect braking during standstill of dying, but during service brake, the thrust of the depending merely on brute spring safety factor that brakes is high and reaction is fast not as the inflation braking, because brute spring is to be compressed for a long time when driving, is easy to generate fatigue.As advancing the excessive air chamber damage that directly causes easily braking of strength again of brute spring one end with air pressure simultaneously.Service brake air pressure protection pipeline and braking during standstill air pressure protection pipeline to be set separately in order addressing the above problem, can to waste productive costs and increase production process, in addition, if the buffering pipeline damage that is provided with can bring potential safety hazard separately.By studying for a long period of time, technical personnel has been developed the double-diaphragm spring brake repair room, allowing die braking during standstill and inflation service brake become possibility, and the safety factor that cooperatively interacts increases greatly, but lacks corresponding supporting air pressure distribution device.Therefore, be badly in need of providing a kind of compound relay valve that braking during standstill and inflation service brake use simultaneously of dying that can guarantee traffic safety, saves production cost and allow.
The utility model content
The purpose of this utility model provides a kind of braking during standstill and compound relay valve of using simultaneously of inflation service brake of dying that can guarantee traffic safety, save production cost and allow.
Compound relay valve of the present utility model has valve body, it is characterized in that described valve body is by the rapid release valve body, two-way valve body and relay valve body constitute, described rapid release valve body has the rapid release valve admission port, the rapid release valve gas delivery port, the rapid release valve air flue, valve block and rapid release valve atmosphere delivery port, described rapid release valve air flue is positioned at the rapid release valve body, described rapid release valve gas delivery port is positioned at rapid release valve body one side, described rapid release valve gas delivery port and rapid release valve atmosphere delivery port are connected by the rapid release valve air flue, described valve block is positioned at the rapid release valve air flue, described valve block one side matches with rapid release valve atmosphere delivery port, described valve block another side matches with the rapid release valve admission port, described two-way valve body two ends have two-way valve first air inlet input port and the two-way valve second air inlet input port respectively, also offer the two-way valve gas delivery port on the described two-way valve body, has the two-way valve air flue between described two-way valve first air inlet input port and the two-way valve second air inlet input port, described two-way valve air flue is connected with the two-way valve gas delivery port, has the two-way valve pneumatic piston in the described two-way valve air flue, described two-way valve pneumatic piston and two-way valve air flue adapt, described two-way valve pneumatic piston sidewall matches with the two-way valve gas delivery port, described two-way valve gas delivery port is connected with the rapid release valve admission port, described relay valve body has the relay valve first piston, relay valve second piston, relay valve second piston reset spring, the relay valve air flue, the relay valve exhausr port, relay valve first admission port, relay valve second admission port, relay valve the 3rd admission port and relay valve gas delivery port, described relay valve first piston has relay valve first piston cavity, described relay valve second piston has the relay valve second piston cavity, described relay valve first piston and relay valve second piston all are positioned at the relay valve air flue, described relay valve second piston reset spring is nested with at relay valve second piston outer wall, described relay valve first piston one side matches with relay valve second admission port, described relay valve first piston another side simultaneously matches with relay valve second piston, the described relay valve second piston another side matches with the relay valve exhausr port, the described two-way valve first air inlet input port is connected with the relay valve gas delivery port by relay valve first admission port, and described rapid release valve atmosphere delivery port is successively by relay valve first piston cavity, the relay valve second piston cavity is connected with the servo exhausr port.
Valve block described in this use is novel is the valve block that the edge has vent for the existing general valve block of rapid release valve.Be connected with the rapid release valve admission port at the gas delivery port of two-way valve described in the utility model; The described two-way valve first air inlet input port is connected with the relay valve gas delivery port by relay valve first admission port; Described rapid release valve atmosphere delivery port by relay valve first piston cavity, the relay valve second piston cavity and after the servo exhausr port is connected, constitutes compound relay valve of the present utility model successively.Its purposes is that this valve is mainly used in braking during standstill and service brake; and utilize the Parking pneumatic circuit on this compound relay valve, to replace air feed and drive extraneous double-diaphragm spring brake repair room with these two different pneumatic circuits of driving pneumatic circuit; allowing dies braking during standstill and inflate service brake is achieved, and then the service life of protecting the outside to brake air chamber, improve brake efficiency, prolongation brake system.And this compound relay valve compact conformation has been saved the interconnective pipeline of a plurality of valves, has ensured the relay valve reliable operation, has correspondingly reduced cost and has improved safety.
Compound relay valve principle of work of the present utility model is such:
1, during braking during standstill, the two-way valve second air inlet input port pressure reduces, under the gaseous tension effect of rapid release valve gas delivery port, allow the valve block of rapid release valve lift rapidly, rapid release valve gas delivery port and rapid release valve admission port are disconnected, and rapid release valve gas delivery port and rapid release valve atmosphere delivery port are connected, gas passes through relay valve first piston cavity, the relay valve second piston cavity and servo exhausr port exhaust to atmosphere successively from rapid release valve atmosphere delivery port, make air chamber pressure reduce to zero, braking during standstill is worked.
When stopping braking during standstill, pressurized air enters the two-way valve air flue through the two-way valve second air inlet input port, produce pressure promotion two-way valve pneumatic piston and move, disconnect connected state fully until two-way valve first air inlet input port and two-way valve gas delivery port to the two-way valve first air inlet input port direction.At this moment, two-way valve second air inlet input port and two-way valve gas delivery port are connected fully, gaseous tension enters the rapid release valve admission port by the two-way valve gas delivery port and acts on the valve block another side of rapid release valve, the rapid release valve atmosphere delivery port of shutoff valve block one side, and with being about to the connection of rapid release valve admission port and rapid release valve gas delivery port, pressurized air arrives exterior brake application by spring air chamber through the rapid release valve gas delivery port, removes braking during standstill.
2, during service brake, pressurized air enters through relay valve second admission port, producing pressure promotion relay valve first piston moves, make the relay valve first piston overcome the elastic force of relay valve second piston reset spring, promoting relay valve second piston moves, allow valve open, this moment, relay valve the 3rd admission port and relay valve gas delivery port were connected, pressurized air arrives the relay valve gas delivery port through relay valve the 3rd admission port, the pressurized air part arrives another brake application by spring air chamber of extraneous bonded assembly through the relay valve gas delivery port, produces service brake power; At this moment, if during two-way valve second air inlet input port inefficacy (gas leakage), the part pressurized air arrives the two-way valve first air inlet input port through relay valve first admission port, produce pressure the two-way valve pneumatic piston is moved to the two-way valve second air inlet input port direction, disconnect fully until two-way valve second air inlet input port and two-way valve gas delivery port.At this moment, two-way valve first air inlet input port and two-way valve gas delivery port are connected fully, gaseous tension enters the rapid release valve admission port by the two-way valve gas delivery port and acts on the valve block another side of rapid release valve, the rapid release valve atmosphere delivery port of shutoff valve block one side, and with being about to the connection of rapid release valve admission port and rapid release valve gas delivery port, pressurized air arrives exterior brake application by spring air chamber through the rapid release valve gas delivery port, removes braking during standstill power, and service brake can normally be moved.
Stop the driving glancing impact, relay valve second admission port stops air inlet, relay valve second piston disconnects relay valve the 3rd admission port and relay valve gas delivery port under the effect of relay valve second piston reset spring, relay valve gas delivery port air pressure continues to act on the relay valve first piston, allow the relay valve first piston continue to rise, open the end face valve port between relay valve first piston and relay valve second piston, make the relay valve gas delivery port gas can be through the relay valve air flue from relay valve exhausr port exhaust to atmosphere, make air chamber pressure reduce to zero, remove service brake power.
Compared with the aforementioned existing similar products, compound relay valve compact conformation of the present utility model, saved the interconnective pipeline of a plurality of valves, ensured the relay valve reliable operation, can guarantee traffic safety, save production cost and allow die braking during standstill and inflation service brake use on vehicle simultaneously, service brake can normally move when braking during standstill lost efficacy, when service brake inefficacy or car load gas circuit lost efficacy, braking during standstill can effectively be braked, and has improved the safety of car load.
Content of the present utility model further illustrates with the following Examples, but content of the present utility model is not limited only to content related among the embodiment.
Description of drawings
Fig. 1 is the structural representation of compound relay valve among the embodiment.
Fig. 2 is the exhaust condition scheme drawing of compound relay valve when braking during standstill among Fig. 1.
Fig. 3 is the air feed view of the two-way valve second air inlet input port in the compound relay valve of Fig. 1.
Fig. 4 is the air feed view of relay valve second admission port in the compound relay valve of Fig. 1.
The specific embodiment
Shown in Fig. 1～4, compound relay valve has valve body described in the present embodiment, it is characterized in that described valve body is by the rapid release valve body, two-way valve body and relay valve body constitute, described rapid release valve body has rapid release valve admission port 1, rapid release valve gas delivery port 2, rapid release valve air flue 3, valve block 4 and rapid release valve atmosphere delivery port 5, described rapid release valve air flue 3 is positioned at the rapid release valve body, described rapid release valve gas delivery port 2 is positioned at rapid release valve body one side, described rapid release valve gas delivery port 2 and rapid release valve atmosphere delivery port 5 are connected by rapid release valve air flue 3, described valve block 4 is positioned at rapid release valve air flue 3, described valve block 4 one sides match with rapid release valve atmosphere delivery port 5, described valve block 4 another sides match with rapid release valve admission port 1, described two-way valve body two ends have two-way valve first air inlet input port 6 and the two-way valve second air inlet input port 7 respectively, also offer two-way valve gas delivery port 8 on the described two-way valve body, has two-way valve air flue 9 between described two-way valve first air inlet input port 6 and the two-way valve second air inlet input port 7, described two-way valve air flue 9 is connected with two-way valve gas delivery port 8, has two-way valve pneumatic piston 10 in the described two-way valve air flue 9, described two-way valve pneumatic piston 10 adapts with two-way valve air flue 9, described two-way valve pneumatic piston 10 sidewalls match with two-way valve gas delivery port 8, described two-way valve gas delivery port 8 is connected with rapid release valve admission port 1, described relay valve body has relay valve first piston 11, relay valve second piston 12, relay valve second piston reset spring 13, relay valve air flue 14, relay valve exhausr port 15, relay valve first admission port 16, relay valve second admission port 17, relay valve the 3rd admission port 18 and relay valve gas delivery port 19, described relay valve first piston 11 has relay valve first piston cavity 20, described relay valve second piston 12 has the relay valve second piston cavity 21, described relay valve first piston 11 and relay valve second piston 12 all are positioned at relay valve air flue 14, described relay valve second piston reset spring 13 is nested with at relay valve second piston 12 outer walls, described relay valve first piston 11 one sides match with relay valve second admission port 17, described relay valve first piston 11 another sides match with relay valve second piston 12 one sides, described relay valve second piston 12 another sides match with relay valve exhausr port 15, the described two-way valve first air inlet input port 6 is connected with relay valve gas delivery port 19 by relay valve first admission port 16, and described rapid release valve atmosphere delivery port 5 is successively by relay valve first piston cavity 20, the relay valve second piston cavity 21 is connected with servo exhausr port 15.
The compound relay valve principle of work of present embodiment is as follows:
1, during braking during standstill, the two-way valve second air inlet input port 7 pressure reduce, under the gaseous tension effect of rapid release valve gas delivery port 2, allow the valve block 4 of rapid release valve lift rapidly, rapid release valve gas delivery port 2 and rapid release valve admission port 1 are disconnected, and rapid release valve gas delivery port 2 is connected with rapid release valve atmosphere delivery port 5, gas passes through relay valve first piston cavity 20, the relay valve second piston cavity 21 and servo exhausr port 15 exhaust to atmospheres successively from rapid release valve atmosphere delivery port 5, make air chamber pressure reduce to zero, braking during standstill is worked.
When stopping braking during standstill, pressurized air enters two-way valve air flue 9 through the two-way valve second air inlet input port 7, produce pressure promotion two-way valve pneumatic piston 10 and move, disconnect connected state fully with two-way valve gas delivery port 8 until the two-way valve first air inlet input port 6 to the two-way valve first air inlet input port 6 directions.At this moment, the two-way valve second air inlet input port 7 is connected fully with two-way valve gas delivery port 8, gaseous tension enters rapid release valve admission port 1 by two-way valve gas delivery port 8 and acts on valve block 4 another sides of rapid release valve, the rapid release valve atmosphere delivery port 5 of shutoff valve block 4 one sides, and with being about to rapid release valve admission port 1 and 2 connections of rapid release valve gas delivery port, pressurized air arrives exterior brake application by spring air chamber through rapid release valve gas delivery port 2, removes braking during standstill, and service brake can normally be moved.
2, during service brake, pressurized air enters through relay valve second admission port 17, producing pressure promotion relay valve first piston 11 moves, make relay valve first piston 11 overcome the elastic force of relay valve second piston reset spring 13, promoting relay valve second piston 12 moves, allow valve open, this moment, relay valve the 3rd admission port 18 was connected with relay valve gas delivery port 19, pressurized air arrives relay valve gas delivery port 19 through relay valve the 3rd admission port 18, the pressurized air part arrives another brake application by spring air chamber of extraneous bonded assembly through relay valve gas delivery port 19, produces service brake power; At this moment, when if the two-way valve second air inlet input port 7 lost efficacy (gas leakage), the part pressurized air arrives the two-way valve first air inlet input port 6 through relay valve first admission port 16, produce pressure two-way valve pneumatic piston 10 is moved to the two-way valve second air inlet input port 7 directions, disconnect fully with two-way valve gas delivery port 8 until the two-way valve second air inlet input port 7.At this moment, the two-way valve first air inlet input port 6 is connected fully with two-way valve gas delivery port 8, gaseous tension enters rapid release valve admission port 1 by two-way valve gas delivery port 8 and acts on valve block 4 another sides of rapid release valve, the rapid release valve atmosphere delivery port 5 of shutoff valve block one side, and with being about to rapid release valve admission port 1 and 2 connections of rapid release valve gas delivery port, pressurized air arrives exterior brake application by spring air chamber through rapid release valve gas delivery port 2, removes braking during standstill power.
Stop the driving glancing impact, relay valve second admission port 17 stops air inlet, relay valve second piston 12 disconnects relay valve the 3rd admission port 18 and relay valve gas delivery port 19 under the effect of relay valve second piston reset spring 13, relay valve gas delivery port 19 air pressure continue to act on relay valve first piston 11, allow relay valve first piston 11 continue to rise, open the end face valve port between relay valve first piston 11 and relay valve second piston 12, make relay valve gas delivery port 19 gases can be through relay valve air flue 14 from relay valve exhausr port 15 exhaust to atmospheres, make air chamber pressure reduce to zero, remove service brake power.
Claims (1)
1, a kind of compound relay valve, has valve body, it is characterized in that described valve body is by the rapid release valve body, two-way valve body and relay valve body constitute, described rapid release valve body has the rapid release valve admission port, the rapid release valve gas delivery port, the rapid release valve air flue, valve block and rapid release valve atmosphere delivery port, described rapid release valve air flue is positioned at the rapid release valve body, described rapid release valve gas delivery port is positioned at rapid release valve body one side, described rapid release valve gas delivery port and rapid release valve atmosphere delivery port are connected by the rapid release valve air flue, described valve block is positioned at the rapid release valve air flue, described valve block one side matches with rapid release valve atmosphere delivery port, described valve block another side matches with the rapid release valve admission port, described two-way valve body two ends have two-way valve first air inlet input port and the two-way valve second air inlet input port respectively, also offer the two-way valve gas delivery port on the described two-way valve body, has the two-way valve air flue between described two-way valve first air inlet input port and the two-way valve second air inlet input port, described two-way valve air flue is connected with the two-way valve gas delivery port, has the two-way valve pneumatic piston in the described two-way valve air flue, described two-way valve pneumatic piston and two-way valve air flue adapt, described two-way valve pneumatic piston sidewall matches with the two-way valve gas delivery port, described two-way valve gas delivery port is connected with the rapid release valve admission port, described relay valve body has the relay valve first piston, relay valve second piston, relay valve second piston reset spring, the relay valve air flue, the relay valve exhausr port, relay valve first admission port, relay valve second admission port, relay valve the 3rd admission port and relay valve gas delivery port, described relay valve first piston has relay valve first piston cavity, described relay valve second piston has the relay valve second piston cavity, described relay valve first piston and relay valve second piston all are positioned at the relay valve air flue, described relay valve second piston reset spring is nested with at relay valve second piston outer wall, described relay valve first piston one side matches with relay valve second admission port, described relay valve first piston another side simultaneously matches with relay valve second piston, the described relay valve second piston another side matches with the relay valve exhausr port, the described two-way valve first air inlet input port is connected with the relay valve gas delivery port by relay valve first admission port, and described rapid release valve atmosphere delivery port is successively by relay valve first piston cavity, the relay valve second piston cavity is connected with the servo exhausr port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200649337U CN201261462Y (en) | 2008-08-29 | 2008-08-29 | Duplex relay valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200649337U CN201261462Y (en) | 2008-08-29 | 2008-08-29 | Duplex relay valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201261462Y true CN201261462Y (en) | 2009-06-24 |
Family
ID=40807931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200649337U Expired - Lifetime CN201261462Y (en) | 2008-08-29 | 2008-08-29 | Duplex relay valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201261462Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862563A (en) * | 2012-09-18 | 2013-01-09 | 河南昌通科技有限公司 | Automobile brake anti-failure three-control relay valve |
| CN108313042A (en) * | 2018-03-06 | 2018-07-24 | 湖北力美制动元件有限公司 | A kind of relay valve |
-
2008
- 2008-08-29 CN CNU2008200649337U patent/CN201261462Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862563A (en) * | 2012-09-18 | 2013-01-09 | 河南昌通科技有限公司 | Automobile brake anti-failure three-control relay valve |
| CN102862563B (en) * | 2012-09-18 | 2014-10-01 | 昌通科技有限公司 | Automobile brake anti-failure three-control relay valve |
| CN108313042A (en) * | 2018-03-06 | 2018-07-24 | 湖北力美制动元件有限公司 | A kind of relay valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: KE SHOUQIAN Effective date: 20110825 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 610000 CHENGDU, SICHUAN PROVINCE TO: 610052 CHENGDU, SICHUAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110825 Address after: 610052, No. two, three ring road, East 85 Ring Road, Chenghua District, Sichuan, Chengdu Patentee after: Sichuan Kesda Vehicle Brake System (Group) Co., Ltd. Address before: 610000 Sichuan city of Chengdu province Chenghua District Longtan Industrial Zone Patentee before: Ke Shouqian |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090624 |
|
| CX01 | Expiry of patent term |