CN102556037B - Novel three-bridge emergency relay valve - Google Patents
Novel three-bridge emergency relay valve Download PDFInfo
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- CN102556037B CN102556037B CN201110426479.1A CN201110426479A CN102556037B CN 102556037 B CN102556037 B CN 102556037B CN 201110426479 A CN201110426479 A CN 201110426479A CN 102556037 B CN102556037 B CN 102556037B
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- 210000000981 epithelium Anatomy 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 6
- 230000001737 promoting effect Effects 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 241001347978 Major minor Species 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 229910000754 Wrought iron Inorganic materials 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 108010001267 Protein Subunits Proteins 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000916 dilatatory effect Effects 0.000 description 1
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- 230000004044 response Effects 0.000 description 1
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Abstract
The invention discloses a novel three-bridge emergency relay valve, which comprises a valve body, a valve cover, a piston, a sealing valve, a reset spring, a valve seat, a check ring, a small spring, a sealing gasket, a check valve, a first air inlet connector, a multi-position valve rod, an adjusting rod, an adjusting connector, a clamping spring, a control handle, a fast-discharging film and a second air inlet connector. The sealing valve, the reset spring and the valve seat are sequentially installed in the valve body, and the check ring is used for fixing and positioning. The small spring, the sealing gasket and the check valve are sequentially filled in the valve body. The multi-position valve rod is installed in the valve cover, the adjusting rod is installed in the adjusting connector, the clamping spring is clamped on a clamping spring groove of the adjusting rod to perform route limiting on the adjusting rod, the control handle is further installed on the adjusting rod to form a sub-unit, and the installed sub-unit is filled in the valve cover where the multi-position valve rod is installed. The fast-discharging film is placed in a control opening end of the valve cover, the second air inlet connector is screwed on, and a third exhausting port is arranged on the second air inlet connector. The piston is arranged between the valve cover and the valve body and then the valve cover and the valve body are fixedly connected. The novel three-bridge emergency relay valve can perform exhausting fast, reduces abrasion between a braking pad and a tyre, is favorable for dragging moving of a trailer on site, simultaneously saves installation space and reduces production cost.
Description
[technical field]
The present invention relates to auto parts and components, especially a kind of novel three bridge emergency relay valve.
[background technology]
Domestic trailer emergency relay valve design is all generally the doctrine of bringing, and introduces and imitated external existing product, copies slavishly, lacks independent innovational design, while causing opening world market market, encounters a lot of patent barriers.
And all there is following shortcoming in general three bridge emergency relay valve both domestic and external at present:
1. common three bridge emergency relay valve control chamber volumes are large, when brake off because gas need to carry out exhaust to trailer valve by connecting line, exhaust line path length, exhaust velocity is slow, causes vehicle start slow.Three bridge emergency relay valve valve bodies are long simultaneously, also cause exhaust not fast, and brake facing and tire are worn and torn too early.
2. many bridges trailer is departing from tractor, disconnect after main air supply source, rear air receiver atmospheric pressure acts on spring brake chamber driving chamber by three bridge emergency relay valve, makes rear trailer produce stopping brake, but after this form, trailer lacks brake off function at present, once braking, except emptying air receiver, under the prerequisite of unloading gas outlet pressure, without external gas source in the situation that, be cannot brake off, cause losing efficacy at some drawing head source of the gas, while needing again mobile rear trailer, cannot complete and drag.
3. conventional three-axle relay valve, structure relative complex; Weight is heavier, in 2.64Kg left and right; Entirety takes up room greatly, and height is in 170mm left and right; Overall accessory processing technology requires high, causes the cost of product own high.
4. properties of product are single, without additional function.
[summary of the invention]
Object of the present invention solves the problems of the prior art exactly, proposes a kind of novel three bridge emergency relay valve, can Quick air-discharge, reduce the wearing and tearing of brake facing and tire, and facilitate the drag movement of trailer in place, simultaneously, can also save installing space, reduce production costs.
For achieving the above object, the present invention proposes a kind of novel three bridge emergency relay valve, comprise valve body, valve gap, piston, sealed valve, pull back spring, valve seat, back-up ring, little spring, packing seal, check valve, the first inlet suction port, multidigit valve rod, adjust bar, regulate joint, jump ring, control handle, fast row's epithelium and the second inlet suction port, described valve body is provided with 1-1 interface, two 1-2 interfaces, some the 2nd interfaces, valve gap is provided with interface 3 and second row gas port, sealed valve, pull back spring, valve seat packs in valve body successively, fixing spacing with back-up ring, valve seat is provided with first row gas port, little spring, packing seal, check valve pack in valve body successively, are tightened with the first inlet suction port, and the first inlet suction port is provided with the 1st interface, multidigit valve rod packs in valve gap, adjust bar packs adjusting joint into, and adopt jump ring to be stuck on the jump-ring slot of adjust bar adjust bar is carried out to stroke limit, described adjust bar, adjusting joint, jump ring, control handle form a sub-unit jointly, the sub-unit installing are installed in the valve gap that installs multidigit valve rod, to arrange soon epithelium and put into the control mouth end of valve gap, and second inlet suction port of screwing on, the second inlet suction port is provided with the 3rd exhausr port, between valve gap and valve body, be provided with piston, valve gap is fixed and is connected with valve body, the quantity of described the 2nd interface is 6, described the first inlet suction port is tightened onto on valve body by screw thread, when installing on valve gap, described sub-unit fixedly mounts by regulating being threaded between joint and valve gap to realize, described the second inlet suction port adopts and is threaded with valve gap, between described valve gap and valve body, adopts hexagonal bar iron to achieve a fixed connection,
The gas that tractor is come, by connection valve, trailer valve to entering into after admission line through the 1st interface, promote multidigit valve rod through via hole M on the one hand, make it to be moved to the left on earth, interface 3 communicates with E chamber through G chamber, H chamber like this, I chamber and H chamber, E chamber disconnect simultaneously, make the gas of the 1st interface enter into E chamber by H chamber; On the other hand, the gas that tractor is come promotes packing seal through the 1st interface, and check valve and packing seal are thrown off; Gas just passes through to 1-1 interface through A1 chamber like this, enters into the main air storage pipeline of trailer and arrives main air reservoir; In like manner, gas also will enter into secondary air tank by 1-2 interface, make major-minor air tank reach trailer and can use air pressure;
When trailer service brake, the gas that service brake is come passes through pilot piping, enter interface 3, the reasons such as pressure reduction, gas now gas can enter hole K and can not enter into hole J, through hole, K enters into G, H chamber, arrive again the gas in E chamber, promotion piston moves down, make to seal between piston and sealed valve, continue to promote sealed valve moves down simultaneously, valve body and sealed valve depressurization, now, the gas of the 1st interface and 1-2 interface enters into B chamber by A1 chamber, enter into brake repair room by the 2nd interface again, complete service brake process, in the process that piston moves down, the gas in D chamber is discharged through F chamber by the aperture on piston, prevent that the compression of D cavity volume from forming high pressure, affect the speed that piston moves down,
When trailer is removed service brake, interface 3 is removed air feed, the gas in E chamber enters hole K by H, G chamber, due to reasons such as pressure reduction, can make to arrange soon the laminating of epithelium and the second inlet suction port, make the gas of hole K can not enter into interface 3 and enter into pilot piping, can only enter J hole, by the 3rd exhausr port, by E chamber gas fast evacuation, Here it is controls outspoken row function; Simultaneously, under the return-air of the brake repair room coming and the tension force effect of pull back spring on sealed valve, piston is moved up, B chamber is communicated with F chamber, brake repair room return-air process B chamber, F chamber are by first row gas port and second row gas port two-way being discharged in atmosphere fast, piston, sealed valve, pull back spring return to the state before service brake, brake off pressure;
When trailer is died braking, trailer departs from tractor completely, and the 1st interface and interface 3 are all by the source of the gas that does not have next tractor truck to provide; At this moment the gas of major and minor air tank can enter into I chamber by hole N through 1-1 interface and 1-2 interface, promoting multidigit valve rod moves right, close contacting of G chamber and H chamber, I chamber is communicated with H chamber, E chamber, the gas that air tank is come so just enters E chamber, promotion piston moves down, valve body and sealed valve depressurization, now, the gas of 1-1 interface and 1-2 interface enters into B chamber by A1 chamber, enter into brake repair room by the 2nd interface again, complete trailer braking protection valve;
Trailer is died to brake and is removed, and turn control handle, drives adjust bar, makes adjust bar along regulating joint screw thread turn left, promotes multidigit valve rod and is also moved to the left; I chamber and contacting first of H chamber are closed, and make gas that air tank is come enter into I chamber by hole N and enter into E chamber again, and then H chamber is communicated with G chamber, and the gas in E chamber, just by H chamber, G chamber, enters via hole K and carries out quick drain by exhausr port like this; Simultaneously, the gas of brake repair room coming, through gas circuit mode the same when removing service brake, via quick two-way being discharged in atmosphere of first row gas port and second row gas port, piston, sealed valve, pull back spring return to the state before service brake, remove the brake-pressure of dying.
Beneficial effect of the present invention: the present invention is designed with multiple exhausr port, can Quick air-discharge, while removing trailer braking protection valve, efficiently, not dilatory, the more old-fashioned three-axle relay valve of performance obviously promotes 15% left and right, can actv. reduce the wearing and tearing of brake facing and tire, useful service life extends more than 7%.At current domestic trailer and semi-mounted not in solar obligation ABS antiblock device situation, continuous " point is stopped " when these novel three bridge emergency relay valve are very applicable to braking, reduces the sideslip out-of-control phenomenon that trailer braking protection valve locking causes.Possesses the manual removing function of trailer braking protection valve, depart from the trailer of tractor truck, only control handle need be threaded to brake off state, just can make to depart from the trailer brake off of tractor truck, very convenient trailer, in the movement of dragging away from place, has also improved the service efficiency of tractor truck simultaneously.Through designs simplification and integrated, part manufacturing procedure reduces, few when while assembler; Product reliably obtaining property is high; Overall weight only has 2.35Kg, declines obviously; Productive costs control is low; Product height is 103.5mm, reduces 66.5mm, has saved installing space.Can realize multi-functionally, except itself newly adding function, can also install when needed hand valve, electrically-controlled valve and sense additional and carry three kinds of additional functions of electrodeless speed regulator.The enforcement of this product item, properties of product are significantly improved, increase product additional function, especially the fast speed of response of product self, during not by external gas source pressure, after removing, function and the three bridge emergency relay valve control chambers of trailer braking protection valve increase obviously improving product added value of fast playing function mechanism.
Feature of the present invention and advantage will be elaborated by reference to the accompanying drawings by embodiment.
[brief description of the drawings]
Fig. 1 is the structural representation of the novel three bridge emergency relay valve of the present invention;
Fig. 2 is the assembly cutaway view of the novel three bridge emergency relay valve of the present invention;
Fig. 3 is the structural representation of the 3rd exhausr port in the novel three bridge emergency relay valve of the present invention;
Fig. 4 is the structural representation of multidigit valve rod in the novel three bridge emergency relay valve of the present invention;
Fig. 5 is the front view of packing seal in the novel three bridge emergency relay valve of the present invention;
Fig. 6 is the structural representation of piston in the novel three bridge emergency relay valve of the present invention.
[detailed description of the invention]
Consult Fig. 1, 2, 3, 4, 5, 6, novel three bridge emergency relay valve, comprise valve body 1, valve gap 2, piston 3, sealed valve 13, pull back spring 14, valve seat 15, back-up ring 16, little spring 12, packing seal 11, check valve 10, the first inlet suction port 9, multidigit valve rod 4, adjust bar 7, regulate joint 6, jump ring 5, control handle 8, fast row's epithelium 17, the second inlet suction port 18, described valve body 1 is provided with 1-1 interface J1-1, two 1-2 interface J1-2, some the 2nd interface J2, valve gap 2 is provided with interface 3 J3 and second row gas port P2, sealed valve 13, pull back spring 14, valve seat 15 packs in valve body 1 successively, fixing spacing with back-up ring 16, valve seat 15 is provided with first row gas port P1, little spring 12, packing seal 11, check valve 10 pack in valve body 1 successively, are tightened with the first inlet suction port 9, and the first inlet suction port is provided with the 1st interface, multidigit valve rod 4 packs in valve gap 2, adjust bar 7 packs adjusting joint 6 into, and adopt jump ring 5 to be stuck on the jump-ring slot of adjust bar 7 adjust bar 7 is carried out to stroke limit, control handle 8 is installed on adjust bar 7 again and forms a sub-unit, the sub-unit installing is installed in the valve gap 2 that installs multidigit valve rod 4, put into the control mouth end of valve gap 2 by arranging soon epithelium 17, and second inlet suction port 18, the second inlet suction ports 18 of screwing on are provided with the 3rd exhausr port P3, after establishing piston 3 between valve gap 2 and valve body 1, be fixedly connected with.Each interface annexation is: the 1st interface J1 taps into air pipe; 1-1 interface J1-1 connects the main air storage pipeline of trailer; 1-2 interface J1-2 connects the main air storage pipeline of trailer; The 2nd interface J2 connects brake repair room; Interface 3 J3 connects pilot piping.In addition, be improve sealing property, in system, also comprise 14 kinds of O RunddichtringOs (in Fig. 2 "
" be O RunddichtringO).
The gas that tractor is come, by connection valve, trailer valve to entering into after admission line through the 1st interface J1, promote multidigit valve rod 4 through via hole M on the one hand, make it to be moved to the left on earth, interface 3 J3 communicates with E chamber through G chamber, H chamber like this, I chamber and H chamber, E chamber disconnect simultaneously, make the gas of the 1st interface J1 enter into E chamber by H chamber.On the other hand, the gas that tractor is come promotes packing seal 11 through the 1st interface J1, and check valve 10 is thrown off with packing seal 11.Gas just passes through to 1-1 interface J1-1 through A1 chamber like this, enters into the main air storage pipeline of trailer and arrives main air reservoir.In like manner, gas also will enter into secondary air tank by 1-2 interface J1-2, make major-minor air tank reach trailer and can use air pressure.
Trailer service brake.Now, the gas that service brake (master cylinder) is come passes through pilot piping, enter interface 3 J3, the reasons such as pressure reduction, gas now gas can enter hole K and can not enter into hole J, through hole, K enters into G, H chamber, arrive again the gas in E chamber, promoting piston 3 moves down, make sealing between piston 3 and sealed valve 13, continue to promote sealed valve 13 moves down simultaneously, valve body 1 and sealed valve 13 depressurizations, now, the gas of the 1st interface J1 and 1-2 interface J1-2 enters into B chamber by A1 chamber, enter into brake repair room by the 2nd interface J2 again, complete service brake process.In the process that piston 3 moves down, the gas in D chamber is discharged through F chamber by the aperture on piston 3, prevents that the compression of D cavity volume from forming high pressure, affects the speed that piston 3 moves down.
When trailer is removed service brake.Now, interface 3 J3 removes air feed, the gas in E chamber enters hole K by H, G chamber, due to reasons such as pressure reduction, can make to arrange soon epithelium 17 and the second inlet suction port 18 is fitted, make the gas of hole K can not enter into interface 3 J3 and enter into pilot piping, can only enter J hole, by the 3rd exhausr port P3, by E chamber gas fast evacuation, Here it is controls outspoken row function.Simultaneously, under the return-air of the brake repair room coming and the tension force effect of pull back spring 14 on sealed valve 13, piston 3 is moved up, B chamber is communicated with F chamber, brake repair room return-air is through B chamber, F chamber by first row gas port P1 and second row gas port P2 two-way being discharged in atmosphere fast, and piston 3, sealed valve 13, pull back spring 14 return to the state before service brake.Brake off pressure.
The trailer braking of dying.Now, trailer departs from tractor completely, and the 1st interface J1 and interface 3 J3 are by the source of the gas that does not have next tractor truck to provide.At this moment the gas of major and minor air tank can enter into I chamber by hole N through 1-1 interface J1-1 and 1-2 interface J1-2, promoting multidigit valve rod 4 moves right, close contacting of G chamber and H chamber, I chamber is communicated with H chamber, E chamber, the gas that air tank is come so just enters E chamber, promoting piston 3 moves down, valve body 1 and 13 depressurizations of seal valve, now, the gas of 1-1 interface J1-1 and 1-2 interface J1-2 enters into B chamber by A1 chamber, enter into brake repair room by the 2nd interface J2 again, complete trailer braking protection valve.
Trailer is died to brake and is removed.Turn control handle 8, drives adjust bar 7, makes adjust bar 7 along regulating the turn left of joint 6 screw threads, promotes multidigit valve rod 4 and is also moved to the left.I chamber and contacting first of H chamber are closed, and make gas that air tank is come enter into I chamber by hole N and enter into E chamber again, and then H chamber is communicated with G chamber, and the gas in E chamber, just by H chamber, G chamber, enters via hole K and carries out quick drain by exhausr port 3 like this.Simultaneously, the gas of brake repair room coming, through gas circuit mode the same when removing service brake, via quick two-way being discharged in atmosphere of first row gas port P1 and second row gas port P2, piston 3, sealed valve 13, pull back spring 14 return to the state before service brake, remove the brake-pressure of dying.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, any scheme after simple transformation of the present invention is all belonged to protection scope of the present invention.
Claims (1)
1. novel three bridge emergency relay valve, it is characterized in that: comprise valve body, valve gap, piston, sealed valve, pull back spring, valve seat, back-up ring, little spring, packing seal, check valve, the first inlet suction port, multidigit valve rod, adjust bar, regulate joint, jump ring, control handle, fast row's epithelium and the second inlet suction port, described valve body is provided with 1-1 interface, two 1-2 interfaces, some the 2nd interfaces, valve gap is provided with interface 3 and second row gas port, sealed valve, pull back spring, valve seat packs in valve body successively, fixing spacing with back-up ring, valve seat is provided with first row gas port, little spring, packing seal, check valve pack in valve body successively, are tightened with the first inlet suction port, and the first inlet suction port is provided with the 1st interface, multidigit valve rod packs in valve gap, adjust bar packs adjusting joint into, and adopt jump ring to be stuck on the jump-ring slot of adjust bar adjust bar is carried out to stroke limit, control handle is installed on adjust bar again, described adjust bar, adjusting joint, jump ring, control handle form a sub-unit jointly, the sub-unit installing are installed in the valve gap that installs multidigit valve rod, to arrange soon epithelium and put into the control mouth end of valve gap, and second inlet suction port of screwing on, the second inlet suction port is provided with the 3rd exhausr port, between valve gap and valve body, be provided with piston, valve gap is fixed and is connected with valve body, the quantity of described the 2nd interface is 6, described the first inlet suction port is tightened onto on valve body by screw thread, when installing on valve gap, described sub-unit fixedly mounts by regulating being threaded between joint and valve gap to realize, described the second inlet suction port adopts and is threaded with valve gap, between described valve gap and valve body, adopts hexagonal bar iron to achieve a fixed connection,
The gas that tractor is come, by connection valve, trailer valve to entering into after admission line through the 1st interface, promote multidigit valve rod through via hole M on the one hand, make it to be moved to the left on earth, interface 3 communicates with E chamber through G chamber, H chamber like this, I chamber and H chamber, E chamber disconnect simultaneously, make the gas of the 1st interface enter into E chamber by H chamber; On the other hand, the gas that tractor is come promotes packing seal through the 1st interface, and check valve and packing seal are thrown off; Gas just passes through to 1-1 interface through A1 chamber like this, enters into the main air storage pipeline of trailer and arrives main air reservoir; In like manner, gas also will enter into secondary air tank by 1-2 interface, make major-minor air tank reach trailer and can use air pressure;
When trailer service brake, the gas that service brake is come passes through pilot piping, enter interface 3, the reason of pressure reduction, gas can now enter hole K and can not enter into hole J, through hole, K enters into G, H chamber, arrive again the gas in E chamber, promotion piston moves down, make to seal between piston and sealed valve, continue to promote sealed valve moves down simultaneously, valve body and sealed valve depressurization, now, the gas of the 1st interface and 1-2 interface enters into B chamber by A1 chamber, enter into brake repair room by the 2nd interface again, complete service brake process, in the process that piston moves down, the gas in D chamber is discharged through F chamber by the aperture on piston, prevent that the compression of D cavity volume from forming high pressure, affect the speed that piston moves down,
When trailer is removed service brake, interface 3 is removed air feed, the gas in E chamber enters hole K by H, G chamber, due to the reason of pressure reduction, can make to arrange soon the laminating of epithelium and the second inlet suction port, make the gas of hole K can not enter into interface 3 and enter into pilot piping, can only enter J hole, by the 3rd exhausr port, by E chamber gas fast evacuation, Here it is controls outspoken row function; Simultaneously, under the return-air of the brake repair room coming and the tension force effect of pull back spring on sealed valve, piston is moved up, B chamber is communicated with F chamber, brake repair room return-air process B chamber, F chamber are by first row gas port and second row gas port two-way being discharged in atmosphere fast, piston, sealed valve, pull back spring return to the state before service brake, brake off pressure;
When trailer is died braking, trailer departs from tractor completely, and the 1st interface and interface 3 are all by the source of the gas that does not have next tractor truck to provide; At this moment the gas of major and minor air tank can enter into I chamber by hole N through 1-1 interface and 1-2 interface, promoting multidigit valve rod moves right, close contacting of G chamber and H chamber, I chamber is communicated with H chamber, E chamber, the gas that air tank is come so just enters E chamber, promotion piston moves down, valve body and sealed valve depressurization, now, the gas of 1-1 interface and 1-2 interface enters into B chamber by A1 chamber, enter into brake repair room by the 2nd interface again, complete trailer braking protection valve;
Trailer is died to brake and is removed, and turn control handle, drives adjust bar, makes adjust bar along regulating joint screw thread turn left, promotes multidigit valve rod and is also moved to the left; I chamber and contacting first of H chamber are closed, and make gas that air tank is come enter into I chamber by hole N and enter into E chamber again, and then H chamber is communicated with G chamber, and the gas in E chamber, just by H chamber, G chamber, enters via hole K and carries out quick drain by the 3rd exhausr port like this; Simultaneously, the gas of brake repair room coming, through gas circuit mode the same when removing service brake, via quick two-way being discharged in atmosphere of first row gas port and second row gas port, piston, sealed valve, pull back spring return to the state before service brake, remove the brake-pressure of dying.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110426479.1A CN102556037B (en) | 2011-12-19 | 2011-12-19 | Novel three-bridge emergency relay valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110426479.1A CN102556037B (en) | 2011-12-19 | 2011-12-19 | Novel three-bridge emergency relay valve |
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| CN102556037A CN102556037A (en) | 2012-07-11 |
| CN102556037B true CN102556037B (en) | 2014-11-19 |
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| CN201110426479.1A Active CN102556037B (en) | 2011-12-19 | 2011-12-19 | Novel three-bridge emergency relay valve |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106274877B (en) * | 2014-08-28 | 2018-10-12 | 陈仲明 | Trailer brake valve with fourth gear output pressure |
| CN104386056B (en) * | 2014-12-03 | 2018-02-13 | 瑞立集团瑞安汽车零部件有限公司 | A kind of trailer relief valve |
| CN105501203A (en) * | 2016-01-04 | 2016-04-20 | 瑞立集团瑞安汽车零部件有限公司 | Multi-channel integrated type ABS (Anti-lock Braking System) rear axle braking device |
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| US3945690A (en) * | 1973-12-06 | 1976-03-23 | Jidosha Kiki Co., Ltd. | Fluid-pressure regulating valve |
| US4181367A (en) * | 1978-06-02 | 1980-01-01 | Sealco Air Controls, Inc. | Ratio relay emergency valve system for vehicles |
| CN201132525Y (en) * | 2007-10-17 | 2008-10-15 | 浙江万安科技股份有限公司 | Automobile relay valve |
| CN201703370U (en) * | 2009-12-26 | 2011-01-12 | 梁传旺 | Flow control type three-axle synchronous quick-release emergency relay valve |
| CN201951447U (en) * | 2011-01-31 | 2011-08-31 | 淄博一伟汽车配件有限公司 | Multi-axle automatic adjusting type emergency relay valve |
| CN202011391U (en) * | 2011-01-31 | 2011-10-19 | 淄博一伟汽车配件有限公司 | Multi-axle adjustable quick-release synchronous emergency relay valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3510607B2 (en) * | 2001-05-21 | 2004-03-29 | クノールブレムゼ商用車システムジャパン株式会社 | Brake pressure control valve device for air brake system |
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2011
- 2011-12-19 CN CN201110426479.1A patent/CN102556037B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3945690A (en) * | 1973-12-06 | 1976-03-23 | Jidosha Kiki Co., Ltd. | Fluid-pressure regulating valve |
| US4181367A (en) * | 1978-06-02 | 1980-01-01 | Sealco Air Controls, Inc. | Ratio relay emergency valve system for vehicles |
| CN201132525Y (en) * | 2007-10-17 | 2008-10-15 | 浙江万安科技股份有限公司 | Automobile relay valve |
| CN201703370U (en) * | 2009-12-26 | 2011-01-12 | 梁传旺 | Flow control type three-axle synchronous quick-release emergency relay valve |
| CN201951447U (en) * | 2011-01-31 | 2011-08-31 | 淄博一伟汽车配件有限公司 | Multi-axle automatic adjusting type emergency relay valve |
| CN202011391U (en) * | 2011-01-31 | 2011-10-19 | 淄博一伟汽车配件有限公司 | Multi-axle adjustable quick-release synchronous emergency relay valve |
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| CN102556037A (en) | 2012-07-11 |
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