CN106080649B - A kind of multifunctional emergency valve - Google Patents
A kind of multifunctional emergency valve Download PDFInfo
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- CN106080649B CN106080649B CN201610644795.9A CN201610644795A CN106080649B CN 106080649 B CN106080649 B CN 106080649B CN 201610644795 A CN201610644795 A CN 201610644795A CN 106080649 B CN106080649 B CN 106080649B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
- B61H11/06—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes
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- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a kind of multifunctional emergency valve, emergency piston composition is provided with valve body composition, the emergency piston composition is connected with being provided with the emergency piston bar of central through hole, urgent sandwich valve is provided with below the emergency piston bar, stable spring is provided between emergency piston composition and urgent valve seat, the urgent sandwich valve is arranged on vent valve guide rod upper end, the vent valve guide rod is socketed in and push rod top, the valve spring that leaks informaton is socketed with the push rod periphery, gas supply part sandwich valve is provided with below the push rod.The present invention according to train pipe decompression rate with ordinary emergency valve in addition to implementing emergency exhaust effect, also have while emergency exhaust, blast main import is exported gas circuit with blast main and link up, after reset, blast main airway is closed, and blast main outlet is linked up with air；After train pipe and emergency chamber are charged to level pressure, when pilot port communicates with air and flux is more than certain limit, make pop valve that the function of emergency exhaust effect occur.
Description
Technical field
The invention belongs to rolling stock technical field, more particularly to a kind of rolling stock multifunctional emergency valve.
Background technology
The pop valve of existing rolling stock only has the function that to implement emergency exhaust according to train pipe decompression rate, urgent
During air draft, it can not realize that blast main import is linked up with blast main outlet gas circuit, and after resetting, blast main airway is closed, always
The function that wind tube outlet and air are linked up, and after train pipe and emergency chamber are charged to level pressure, communicated with air when pilot port and
When flux is more than certain limit, it can not make anxious valve that emergency exhaust effect occur.
The content of the invention
It is an object of the invention to：For above-mentioned problem, there is provided one kind possesses general pop valve stability, urgent
Outside sensitivity function, also there is more multi-functional pop valve.
The technical proposal of the invention is realized in this way：A kind of multifunctional emergency valve, including valve body composition, its feature exist
In：Emergency piston composition is provided with valve body composition, the emergency piston composition is with being provided with the urgent of central through hole
Piston rod connects, and is provided with radial hole, the upper chambers of the emergency piston composition respectively in the upper and lower part of the emergency piston bar
Room connects with emergency chamber, and the lower chamber of the emergency piston composition connects with train pipe, is set below the emergency piston bar
Urgent sandwich valve is equipped with, the urgent sandwich valve is arranged at the valve port of urgent valve seat, in emergency piston composition and promptly
Stable spring is provided between valve seat, the urgent sandwich valve is arranged on vent valve guide rod upper end, and the vent valve is oriented to rod set
Be connected on push rod top, the valve spring that leaks informaton, the vent valve guide rod lower chamber and pilot port are socketed with the push rod periphery
Connection, gas supply part sandwich valve being provided with below the push rod, the gas supply part sandwich valve is arranged at the valve port of supply set,
Guide's valve spring is provided with below the gas supply part sandwich valve, lower chamber and the blast main import of the gas supply part sandwich valve connect
It is logical, upper chamber and the blast main outlet of the gas supply part sandwich valve, the centre bore that the blast main outlet passes through push rod
And radial hole communicates with air.
Multifunctional emergency valve of the present invention, its described valve body composition includes lid, urgent valve body, leak informaton bonnet and
Supply lid, the upper and lower end of the urgent valve body are tightly connected with upper lid and the bonnet that leaks informaton respectively, and the supply lid is with leaking informaton
Bonnet lower end is tightly connected.
Multifunctional emergency valve of the present invention, it is provided with filter dirt on the urgent valve body, with train pipe connectivity part
Net.
Multifunctional emergency valve of the present invention, its described emergency piston composition include upper piston, lower piston and template,
The medial extremity of the template is crimped between upper piston and lower piston, and its outboard end is crimped between lid and urgent valve body, institute
State upper piston and lower piston is socketed on emergency piston bar and is structure as a whole by nut and the assembling of emergency piston bar, described
Emergency piston bar upper surface is provided with sealing ring.
Multifunctional emergency valve of the present invention, its described pop valve have inflation position, service application position, emergency position
And guide's emergency position；
A, position is inflated：When train, which is inflated, to be alleviated, pop valve is in inflation position, and the pressure air of train pipe and stable spring are first
Emergency piston composition is pressed on upper lid, because the sealing ring on emergency piston bar top and upper lid are closely connected, thus emergency piston
The axial centre aperture cut-out of bar upper end, train tube pressure air can only be by emergency piston bar lower end center port, then passes through
The vertical limitation shrinkage cavity of heart through hole, most afterwards through emergency piston bar top radially constrain shrinkage cavity to emergency piston form upper chamber and to
Emergency chamber is inflated；Train tube pressure air is also reached on the downside of vent valve guide rod through secret tunnel in valve body, and negative function is promptly being pressed from both sides
Pressure on core valve, it is closed urgent sandwich valve together with the valve spring that leaks informaton；Emergency chamber pressure is charged to and train pipe pressure
After power is equal, emergency piston composition still keeps top extreme position in the case where stablizing spring effect；Total wind reaches through blast main import to be supplied
On the downside of gas portion sandwich valve, the pressure of total wind and guide's valve spring makes gas supply part sandwich valve compress the valve port of supply set, and total wind is at these
Treat；Centre bore and radial hole of the blast main outlet through push rod are connected with air；
B, service application position：When train implements service braking, train pipe is depressurized with service braking speed, emergency piston composition
The train tube pressure of downside reduces, and both sides produce less pressure differential first, overcomes the counter-force of stable spring, and emergency piston forms slightly
Micro- to move down, emergency piston bar upper end center hole opens, and ensures that emergency chamber pressure air limits hole to train through emergency piston bar center
The speed of pipe adverse current is consistent with train pipe decompression rate, and emergency piston composition both sides do not re-form bigger pressure differential, tightly
Anxious piston composition is suspended in this position, does not continue to move；After train pipe decompression stops, emergency chamber pressure upstream is to equal with train pipe
Afterwards, no longer adverse current, emergency piston composition return to extreme position again in the presence of spring is stablized；Gas supply part remains in that inflation
State during position；
C, emergency position：When train pipe is drastically declined with brake hard speed, emergency chamber pressure air is first by conventional
The path of braking carries out adverse current, but adverse current speed does not reach the rate of pressure reduction of train pipe, is formed more in emergency piston composition both sides
Big pressure difference, emergency piston composition continue to move down, and first push urgent sandwich valve open, open train pipe and arrange the logical of air through pop valve
Road, train tube pressure reduce rapidly, then drive vent valve guide rod and push rod to move down, and push gas supply part sandwich valve, push rod open
On rubber ring move down close blast main outlet row air path, valve port of total wind through opening, into blast main export, perform
Next step control function；After urgent chamber pressure drains, each part is multiple in the presence of pilot valve spring, leak informaton valve spring and stable spring
Position, pop valve return to inflation position；
D, guide's emergency position：When train pipe and emergency chamber are all charged to level pressure, pilot port communicates with air, vent valve
Pressure air below guide rod is discharged rapidly towards air, because secret tunnel aperture is limited in valve body, is mended between train pipe and pilot port
Airspeed is less than air draft speed, and making urgent sandwich valve, both sides form pressure differential up and down, and the pressure differential promotes urgent sandwich valve to leave
Sealing surface, the train tube pressure air in packing state is from the rapid air draft of sealing surface of opening originally so that train pipe and
Huge pressure difference is formed between emergency chamber, pop valve enters emergency position.
The external train pipe of the present invention, emergency chamber, pilot port, blast main import and blast main export five pipelines, are arranging
Equal energy normal work during car pipe level pressure 500kPa or 600kPa, the pop valve with ordinary emergency valve according to train pipe except subtracting
Speed is pressed to implement emergency exhaust effect outer, additionally it is possible to have while emergency exhaust, blast main import is exported with blast main
Gas circuit is linked up, and after resetting, blast main airway is closed, and blast main outlet is linked up with air；Filled in train pipe and emergency chamber
To level pressure, when pilot port communicates with air and flux is more than certain limit, make pop valve that the work(of emergency exhaust effect occur
Energy.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation that emergency piston forms in the present invention.
Fig. 3 is structural representation of the present invention when inflating position.
Fig. 4 is structural representation of the present invention in service application position.
Fig. 5 is structural representation of the present invention in emergency position.
Fig. 6 is structural representation of the present invention in guide's emergency position.
Marked in figure：1a is upper lid, and 1b is urgent valve body, and 1c is the bonnet that leaks informaton, and 1d covers for supply, and 2 be emergency piston group
Into 2a is upper piston, and 2b is lower piston, and 2c is template, and 2d is nut, and 2e is sealing ring, and 3 be emergency piston bar, and 4 be urgent
Room, 5 be train pipe, and 6 be urgent sandwich valve, and 7 be urgent valve seat, and 8 is stablize spring, and 9 be vent valve guide rod, and 10 be push rod, 11
It is pilot port for the valve spring that leaks informaton, 12,13 be gas supply part sandwich valve, and 14 be supply set, and 15 be guide's valve spring, and 16 enter for blast main
Mouthful, 17 be that blast main exports, and 18 be dirt filtrating screen.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As illustrated in fig. 1 and 2, a kind of multifunctional emergency valve, including valve body composition, valve body composition include covering 1a, tightly
Anxious valve body 1b, leak informaton bonnet 1c and supply lid 1d, the urgent valve body 1b upper and lower end respectively with upper lid 1a and the bonnet that leaks informaton
1c is tightly connected, the supply lid 1d and bonnet 1c lower ends sealed connection of leaking informaton.
Wherein, emergency piston composition 2 is provided with valve body composition, during the emergency piston forms 2 and is provided with
The emergency piston bar 3 of heart through hole connects, and emergency piston composition 2 includes upper piston 2a, lower piston 2b and template 2c, described
Template 2c medial extremity is crimped between upper piston 2a and lower piston 2b, its outboard end be crimped on lid 1a and urgent valve body 1b it
Between, the upper piston 2a and lower piston 2b are socketed on emergency piston bar 3 and are one by nut 2d and the assembling of emergency piston bar 3
Body structure, the upper surface of emergency piston bar 3 is provided with sealing ring 2e.
It is provided with radial hole, the upper chambers of the emergency piston composition 2 respectively in the upper and lower part of the emergency piston bar 3
Room connects with emergency chamber 4, and the lower chamber of the emergency piston composition 2 connects with train pipe 5, on the urgent valve body 1b,
The connectivity part of train pipe 5 is provided with dirt filtrating screen 18, urgent sandwich valve 6 is provided with below the emergency piston bar 3, it is described urgent
Sandwich valve 6 is arranged at the valve port of urgent valve seat 7, and stable spring is provided between emergency piston composition 2 and urgent valve seat 7
8, the urgent sandwich valve 6 is arranged on the upper end of vent valve guide rod 9, the vent valve guide rod 9 be socketed in the top of push rod 10,
The valve spring 11 that leaks informaton is socketed with the periphery of push rod 10, the lower chamber of vent valve guide rod 9 connects with pilot port 12, in institute
To state the lower section of push rod 10 and be provided with gas supply part sandwich valve 13, the gas supply part sandwich valve 13 is arranged at the valve port of supply set 14,
The lower section of gas supply part sandwich valve 13 is provided with guide's valve spring 15, and the lower chamber of the gas supply part sandwich valve 13 is entered with blast main
Mouth 16 connects, and upper chamber and the blast main outlet 17 of the gas supply part sandwich valve 13 connects, and the blast main outlet 17 passes through
The centre bore and radial hole of push rod 10 communicate with air.
The pop valve of the present invention has inflation position, service application position, emergency position and guide's emergency position.
A, position is inflated：As shown in figure 3, when train is inflated and alleviated, pop valve is in inflation position, and the pressure of train pipe 5 is empty
Emergency piston composition 2 is first pressed on upper lid 1a by gas and stable spring 8, due to the top of emergency piston bar 3 sealing ring 2e with it is upper
Lid 1a is closely connected, thus the axial centre aperture cut-out of the upper end of emergency piston bar 3, and the pressure air of train pipe 5 can only be by promptly living
The lower end center port of stopper rod 3, then through the vertical limitation shrinkage cavity of central through hole, most radially constrain shrinkage cavity through the top of emergency piston bar 3 afterwards
2 upper chambers are formed to emergency piston and are inflated to emergency chamber 4, and emergency piston bar upper end radially constrains shrinkage cavity control inflation speed
Degree, avoid emergency chamber inflation too fast and cause unexpected brake hard；The pressure air of train pipe 5 is also reached through secret tunnel in valve body and put
The downside of air-valve guide rod 9, pressure of the negative function on urgent sandwich valve 6, makes at urgent sandwich valve 6 together with the valve spring 11 that leaks informaton
In closed mode；The pressure of emergency chamber 4 be charged to it is equal with the pressure of train pipe 5 after, emergency piston composition 2 stablize spring 8 act under, still
Keep top extreme position；Total wind reaches the downside of gas supply part sandwich valve 13 through blast main import 16, total wind and guide's valve spring 15
Pressure makes gas supply part sandwich valve 13 compress the valve port that supply covers 14, and total wind waits herein；Blast main outlet 17 is through in push rod 10
Heart hole and radial hole are connected with air.
B, service application position：As shown in figure 4, when train implements service braking, train pipe 5 is depressurized with service braking speed,
The train tube pressure of the downside of emergency piston composition 2 reduces, and both sides produce less pressure differential first, overcomes the counter-force of stable spring 8,
Emergency piston composition 2 somewhat moves down, and the upper end center hole of emergency piston bar 3 opens, and ensures the pressure air of emergency chamber 4 through emergency piston
The center of bar 3 limit hole is consistent to the speed of the adverse current of train pipe 5 with the decompression rate of train pipe 5, and emergency piston forms 2 both sides no longer
Bigger pressure differential is formed, emergency piston composition 2 is suspended in this position, does not continue to move；After the decompression of train pipe 5 stops, emergency chamber 4
Pressure upstream is to after equal with train pipe 5, and no longer adverse current, emergency piston composition 2 return to pole again in the presence of spring 8 is stablized
End position；Gas supply part remains in that state during inflation position.
C, emergency position：As shown in figure 5, when train pipe is drastically declined with brake hard speed, the pressure of emergency chamber 4 is empty
Gas first carries out adverse current by the path of service braking, but adverse current speed does not reach the rate of pressure reduction of train pipe 5, is formed in emergency piston
2 both sides form bigger pressure difference, and emergency piston composition 2 continues to move down, and first pushes urgent sandwich valve 6 open, opens train pipe 5 through urgent
Valve arranges the path of air, and the pressure of train pipe 5 reduces rapidly, then drives vent valve guide rod 9 and push rod 10 to move down, and push confession open
Gas portion sandwich valve 13, the rubber ring on push rod 10, which moves down, closes the path that blast main exports 17 row's air, valve of total wind through opening
Mouthful, into blast main outlet 17, perform next step control function；Because the centre bore of emergency piston bar lower end is by urgent sandwich valve
Block, emergency chamber pressure air can only enter train pipe from the radial direction shrinkage cavity of urgent piston-rod lower end, finally arrange to air, radial direction
Shrinkage cavity control emergency chamber exhaust time, after the pressure of emergency chamber 4 drains, each part pilot valve spring 15, leak informaton valve spring 11 with
And resetted in the presence of stable spring 8, that is to say, that in the certain time after brake hard, pop valve returns to inflation position.
D, guide's emergency position：As shown in fig. 6, when train pipe 5 and emergency chamber 4 are all charged to level pressure, pilot port 12 with
Air communicates, and the pressure air of the lower section of vent valve guide rod 9 is discharged rapidly towards air, because secret tunnel aperture is limited in valve body, train
Airspeed is mended between pipe 5 and pilot port 12 and is less than air draft speed, urgent sandwich valve is formed pressure differential, the pressure in both sides about 6
Difference promotes urgent sandwich valve 6 to leave sealing surface, and the pressure air of train pipe 5 in packing state is fast from the sealing surface of opening originally
Fast air draft, so that forming huge pressure difference between train pipe 5 and emergency chamber 4, pop valve enters emergency position.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (5)
1. a kind of multifunctional emergency valve, including valve body composition, it is characterised in that：Emergency piston is provided with valve body composition
Composition（2）, the emergency piston composition（2）Emergency piston bar with being provided with central through hole（3）Connection, in the emergency piston
Bar（3）Upper and lower part be provided with radial hole respectively, the emergency piston composition（2）Upper chamber and emergency chamber（4）Connection,
The emergency piston composition（2）Lower chamber and train pipe（5）Connection, in the emergency piston bar（3）Lower section is provided with tightly
Anxious sandwich valve（6）, the urgent sandwich valve（6）It is arranged on urgent valve seat（7）Valve port at, the emergency piston form（2）
With urgent valve seat（7）Between be provided with stable spring（8）, the urgent sandwich valve（6）It is arranged on vent valve guide rod（9）Upper end,
The vent valve guide rod（9）It is socketed in and push rod（10）Top, in the push rod（10）Periphery is socketed with the valve spring that leaks informaton（11）,
The vent valve guide rod（9）Lower chamber and pilot port（12）Connection, in the push rod（10）Lower section is provided with gas supply part folder
Core valve（13）, the gas supply part sandwich valve（13）It is arranged on supply set（14）Valve port at, in the gas supply part sandwich valve（13）
Lower section is provided with guide's valve spring（15）, the gas supply part sandwich valve（13）Lower chamber and blast main import（16）Connection, institute
State gas supply part sandwich valve（13）Upper chamber and blast main export（17）Connection, the blast main outlet（17）Pass through push rod
（10）Centre bore and radial hole communicated with air.
2. multifunctional emergency valve according to claim 1, it is characterised in that：The valve body composition includes lid（1a）, it is tight
Anxious valve body（1b）, leak informaton bonnet（1c）And supply lid（1d）, the urgent valve body（1b）Upper and lower end respectively with upper lid（1a）
With the bonnet that leaks informaton（1c）It is tightly connected, the supply lid（1d）With the bonnet that leaks informaton（1c）Lower end is tightly connected.
3. multifunctional emergency valve according to claim 2, it is characterised in that：In the urgent valve body（1b）Upper and train
Pipe（5）Connectivity part is provided with dirt filtrating screen（18）.
4. according to the multifunctional emergency valve described in claim 1,2 or 3, it is characterised in that：The emergency piston composition（2）Including
Upper piston（2a）, lower piston（2b）And template（2c）, the template（2c）Medial extremity be crimped on upper piston（2a）With lower work
Plug（2b）Between, its outboard end is crimped on lid（1a）With urgent valve body（1b）Between, the upper piston（2a）And lower piston
（2b）It is socketed in emergency piston bar（3）Go up and pass through nut（2d）With emergency piston bar（3）Assembling is structure as a whole, described tight
Anxious piston rod（3）Upper surface is provided with sealing ring（2e）.
5. multifunctional emergency valve according to claim 4, it is characterised in that：The pop valve has inflation position, conventional system
Dynamic position, emergency position and guide's emergency position；
A, position is inflated：When train, which is inflated, to be alleviated, pop valve is in inflation position, train pipe（5）Pressure air and stable spring（8）
First emergency piston is formed（2）It is pressed on lid（1a）On, due to emergency piston bar（3）The sealing ring on top（2e）With upper lid
（1a）It is closely connected, thus emergency piston bar（3）The axial centre aperture cut-out of upper end, train pipe（5）Pressure air can only be by tight
Anxious piston rod（3）Lower end center port, then through the vertical limitation shrinkage cavity of central through hole, most afterwards through emergency piston bar（3）Top is radially
Shrinkage cavity is limited to form to emergency piston（2）Upper chamber and to emergency chamber（4）Inflation；Train pipe（5）Pressure air is also through valve body
Interior secret tunnel reaches vent valve guide rod（9）Downside, negative function is in urgent sandwich valve（6）On pressure, with the valve spring that leaks informaton（11）
Make urgent sandwich valve together（6）It is closed；Emergency chamber（4）Pressure is charged to and train pipe（5）It is urgent living after pressure is equal
Plug composition（2）Stablizing spring（8）Under effect, top extreme position is still kept；Total wind is through blast main import（16）Reach gas supply part
Sandwich valve（13）Downside, total wind and guide's valve spring（15）Pressure make gas supply part sandwich valve（13）Compress supply set（14）Valve
Mouthful, total wind waits herein；Blast main exports（17）Through push rod（10）Centre bore and radial hole be connected with air；
B, service application position：When train implements service braking, train pipe（5）Depressurized with service braking speed, emergency piston composition
（2）The train tube pressure of downside reduces, and both sides produce less pressure differential first, overcomes stable spring（8）Counter-force, emergency piston
Composition（2）Somewhat move down, emergency piston bar（3）Upper end center hole opens, and ensures emergency chamber（4）Pressure air is through emergency piston bar
（3）Center limits hole to train pipe（5）The speed and train pipe of adverse current（5）Decompression rate is consistent, emergency piston composition（2）Two
Side does not re-form bigger pressure differential, emergency piston composition（2）This position is suspended in, does not continue to move；Train pipe（5）Decompression stops
Afterwards, emergency chamber（4）Pressure upstream arrives and train pipe（5）After equal, no longer adverse current, emergency piston form（2）Stablizing spring（8）'s
Effect is lower to return to extreme position again；Gas supply part remains in that state during inflation position；
C, emergency position：When train pipe is drastically declined with brake hard speed, emergency chamber（4）Pressure air is first by conventional system
Dynamic path carries out adverse current, but adverse current speed does not reach train pipe（5）Rate of pressure reduction, emergency piston form（2）Both sides shape
Cheng Geng great pressure difference, emergency piston composition（2）Continue to move down, first push urgent sandwich valve open（6）, open train pipe（5）Through urgent
Valve arranges the path of air, train pipe（5）Pressure reduces rapidly, then drives vent valve guide rod（9）And push rod（10）Move down, and
Push gas supply part sandwich valve open（13）, push rod（10）On rubber ring move down close blast main outlet（17）The path of air is arranged, always
Valve port of the wind through opening, exported into blast main（17）, perform next step control function；Emergency chamber（4）After pressure drains, each portion
Part is in pilot valve spring（15）, leak informaton valve spring（11）And stable spring（8）In the presence of reset, pop valve return to inflation position；
D, guide's emergency position：Work as train pipe（5）And emergency chamber（4）When being all charged to level pressure, pilot port（12）Communicated with air,
Vent valve guide rod（9）The pressure air of lower section is discharged rapidly towards air, because secret tunnel aperture is limited in valve body, train pipe（5）With
Pilot port（12）Between mend airspeed be less than air draft speed, make urgent sandwich valve（6）Upper and lower both sides form pressure differential, the pressure differential
Promote urgent sandwich valve（6）Sealing surface is left, originally the train pipe in packing state（5）Sealing surface of the pressure air from opening
Rapid air draft, so that train pipe（5）And emergency chamber（4）Between form huge pressure difference, pop valve enters emergency position.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610644795.9A CN106080649B (en) | 2016-08-09 | 2016-08-09 | A kind of multifunctional emergency valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610644795.9A CN106080649B (en) | 2016-08-09 | 2016-08-09 | A kind of multifunctional emergency valve |
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| Publication Number | Publication Date |
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| CN106080649A CN106080649A (en) | 2016-11-09 |
| CN106080649B true CN106080649B (en) | 2018-03-02 |
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| CN201610644795.9A Active CN106080649B (en) | 2016-08-09 | 2016-08-09 | A kind of multifunctional emergency valve |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106347341B (en) * | 2016-11-16 | 2023-04-11 | 眉山中车制动科技股份有限公司 | Main control mechanism for keeping pressure of brake pressure maintaining position of distribution valve stable |
| CN108725416B (en) * | 2018-05-30 | 2024-05-14 | 眉山中车制动科技股份有限公司 | Partial pressure reducing valve rod suitable for small pressure reducing brake air distribution valve of railway passenger car |
| CN111023936B (en) * | 2019-12-18 | 2021-03-23 | 眉山中车制动科技股份有限公司 | Method for measuring critical dimension of performance of emergency valve |
| CN111547032B (en) * | 2020-05-21 | 2022-08-05 | 中车哈尔滨车辆有限公司 | Emergency valve maintenance control method |
| CN112644446B (en) * | 2020-12-22 | 2021-12-14 | 眉山中车制动科技股份有限公司 | Emergency braking accelerating exhaust valve |
| CN114802159B (en) * | 2022-05-13 | 2023-07-14 | 中车齐齐哈尔车辆有限公司 | Emergency valve |
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| EP1209052A2 (en) * | 2000-11-24 | 2002-05-29 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Derailment detecting device for railway vehicles |
| US6663193B1 (en) * | 2003-01-08 | 2003-12-16 | Westinghouse Air Brake Technologies Corporation | Relay valve based accelerated brake pipe application and release system |
| CN2848657Y (en) * | 2005-08-17 | 2006-12-20 | 铁道科学研究院金属及化学研究所 | Emergency valve |
| CN201665210U (en) * | 2010-08-20 | 2010-12-08 | 南车株洲电力机车有限公司 | Charging structure of DK locomotive brake emergency valve and emergency room |
| CN201914239U (en) * | 2010-12-17 | 2011-08-03 | 四川制动科技股份有限公司 | Emergency valve with common acceleration braking function |
| CN201970991U (en) * | 2011-04-14 | 2011-09-14 | 北京南车时代机车车辆机械有限公司 | Air control valve and air brake |
| CN103043074A (en) * | 2012-12-24 | 2013-04-17 | 青岛四方车辆研究所有限公司 | Emergency valve for high-speed motor train units and urban rail transit vehicles |
| CN205930753U (en) * | 2016-08-09 | 2017-02-08 | 眉山中车制动科技股份有限公司 | Multi -functional pop valve |
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| Publication number | Publication date |
|---|---|
| CN106080649A (en) | 2016-11-09 |
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