CN102431541B - Derailment-preventive emergency valve - Google Patents
Derailment-preventive emergency valve Download PDFInfo
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- CN102431541B CN102431541B CN2011103644384A CN201110364438A CN102431541B CN 102431541 B CN102431541 B CN 102431541B CN 2011103644384 A CN2011103644384 A CN 2011103644384A CN 201110364438 A CN201110364438 A CN 201110364438A CN 102431541 B CN102431541 B CN 102431541B
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- emergency
- vent valve
- emergency vent
- derailment
- preventive
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Abstract
The invention discloses a derailment-preventive emergency valve, which comprises an emergency vent valve and an upper cover of connected with the emergency vent valve. A testing block and a valvelet clamped onto the testing block are arranged in the upper cover, a supporting spring is arranged below the testing block, the emergency vent valve comprises an emergency vent valve body, an emergency vent valve component and an emergency piston ring component, and the inside of the emergency vent valve body is divided into a cavity A and a cavity C by the emergency vent valve component. A cavity B is arranged in the upper cover and above the valvelet, and the cavity A and the cavity B are communicated with each other through a communication hole arranged on a center rod. The derailment-preventive emergency valve is suitable for railway vehicles and can replace an existing vehicular emergency valve to be mounted on a vehicle. When the vehicle derails, the vehicle is impacted by upward acceleration when contacting with ties or a roadbed under the action of gravity, the derailment-preventive emergency valve enables a braking pipe to exhaust rapidly after sensing the abnormal impact, and thereby the vehicle and a train can brake emergently to be parked.
Description
Technical field
The present invention relates to the valve body technical field, particularly a kind of rolling stock derailment-preventive emergency valve.
Background technology
At present, brake activation valve, emergency valve etc. are installed usually on existing rolling stock, yet existing emergency valve only has emergency braking function that can be in vehicles failed derailing situation, and not for the emergency valve that stops in the situation that vehicle occurs that derailing produces emergency braking.
Summary of the invention
Goal of the invention of the present invention is:, for the problem of above-mentioned existence, provide a kind of when having existing emergency valve function, can cause in time also in vehicle generation derailing situation that vehicle produces emergency braking and the rolling stock derailment-preventive emergency valve that stops.
technical scheme of the present invention is achieved in that a kind of derailment-preventive emergency valve, it is characterized in that: comprise emergency vent valve and the upper cover that is connected with emergency vent valve, be provided with test block and the little valve that is connected on test block in described upper cover, be provided with support spring below described test block, described support spring upper end is resisted against the test block lower end, the support spring lower end abutment is in the emergency vent valve upper surface, described emergency vent valve comprises the emergency vent valve body and is arranged on the interior emergency vent valve of emergency vent valve body and forms and urgent piston composition, in described upper cover, the test block below is provided with push rod, described push rod lower end is passed the emergency vent valve body and is resisted against the center link upper end of urgent piston composition with through hole, below forming, described urgent piston is provided with spring, it is the chamber A that is communicated with train pipe and the cavity C that is communicated with atmosphere with emergency vent valve body interior separation that described emergency vent valve forms, in described upper cover, little valve top is provided with the chamber B that is communicated with emergency chamber, described chamber A and chamber B are interconnected by the intercommunicating pore that arranges on center link.
Derailment-preventive emergency valve of the present invention, its described emergency vent valve forms and comprises the emergency vent valve push rod, is arranged on the block of emergency vent valve push rod upper end and the piston that is resisted against emergency vent valve push rod lower end, be provided with piston spring below described piston, the cavity of described piston below is communicated with chamber A by path C.
Derailment-preventive emergency valve of the present invention, it is provided with contracting in described path C stifled.
Derailment-preventive emergency valve of the present invention, its under normal circumstances, the block that described emergency vent valve forms is mutual disconnected chamber A and cavity C with emergency vent valve body interior separation.
Derailment-preventive emergency valve of the present invention, it has certain interval between lower end of test block and push rod upper end under normal circumstances, and there is certain interval center link lower end and emergency vent valve push rod upper end that described urgent piston forms.
Derailment-preventive emergency valve of the present invention, it covers on described and is provided with the path A that is communicated with chamber B, is provided with the path B that is communicated with described path A on described emergency vent valve body, and the described path B other end is communicated with emergency chamber.
Derailment-preventive emergency valve of the present invention, it is communicated with the path B on the emergency vent valve body at described intercommunicating pore, on described emergency vent valve body, be provided with shrinkage cavity A between path A and path B.
Derailment-preventive emergency valve of the present invention, it is provided with shrinkage cavity B in the through hole of the center link that described urgent piston forms.
Derailment-preventive emergency valve of the present invention, it is provided with card on described test block top, and described card fixes little valve on test block.
Derailment-preventive emergency valve of the present invention, its on described emergency vent valve body, cavity C atmosphere entry place is provided with dustproof lamina membranacea.
The present invention is applicable to guideway vehicle, replacing existing vehicle emergency valve is arranged on vehicle, when derailing occurs in vehicle, gravitate, being subject to upwards acceleration/accel while touching sleeper or roadbed impacts, this derailment-preventive emergency valve can make brake pipe produce air draft rapidly after experiencing this abnormal impact, causes vehicle and train and produces emergency braking and stop.
Description of drawings
Fig. 1 is structural representation of the present invention.
Mark in figure: 1 is upper cover, and 2 is test block, and 3 is little valve, and 4 is support spring, and 5 is the emergency vent valve body, 6 are that emergency vent valve forms, and 7 be urgent piston composition, and 8 is push rod, bar centered by 9, and 10 is chamber A, 11 is chamber B, and 12 is cavity C, and 13 is intercommunicating pore, and 14 is spring, 15 is the emergency vent valve push rod, and 16 is block, and 17 is piston, and 18 is piston spring, 19 is path A, and 20 is path B, and 21 are shrinkage cavity A, and 22 are shrinkage cavity B, 23 is card, and 24 is path C, and 25 is stifled for contracting, and 26 are dustproof lamina membranacea.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
, in order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
as shown in Figure 1, a kind of derailment-preventive emergency valve, the upper cover 1 that comprises emergency vent valve and with emergency vent valve, be connected, be provided with test block 2 and the little valve 3 that is connected on test block 2 in described upper cover 1, be provided with card 23 on described test block 2 tops, described card 23 fixes little valve 3 on test block 2, be provided with support spring 4 below described test block 2, described support spring 4 upper ends are resisted against test block 2 lower ends, support spring 4 lower end abutment are in the emergency vent valve upper surface, described emergency vent valve comprises emergency vent valve body 5 and is arranged on the interior emergency vent valve composition 6 of emergency vent valve body 5 and urgent piston composition 7, in described upper cover 1, test block 2 belows are provided with push rod 8, described push rod 8 lower ends are passed emergency vent valve body 5 and are resisted against urgent piston composition 79 upper ends of the center link with through hole, below forming 7, described urgent piston is provided with spring 14, described emergency vent valve forms 6 emergency vent valve body 5 is divided into the chamber A10 that is communicated with train pipe and the cavity C 12 that is communicated with atmosphere, in described upper cover 1, little valve 3 tops are provided with the chamber B11 that is communicated with emergency chamber, described chamber A10 and chamber B11 are interconnected by the intercommunicating pore 13 that arranges on center link 9.Under normal circumstances, between the lower end of test block 2 and push rod 8 upper ends, certain interval is arranged, there is certain interval center link 9 lower ends and emergency vent valve push rod 15 upper ends of described urgent piston composition 7.
Wherein, described emergency vent valve forms 6 pistons 17 that comprise emergency vent valve push rod 15, are arranged on the block 16 of emergency vent valve push rod 15 upper ends and are resisted against emergency vent valve push rod 15 lower ends, be provided with piston spring 18 below described piston 17, the cavity of described piston 17 belows is communicated with chamber A10 by path C24, is provided with contracting stifled 25 in described path C24.Under normal circumstances, the block 16 of described emergency vent valve composition 6 is mutual disconnected chamber A10 and cavity C 12 with emergency vent valve body 5 interior separations.
Be provided with the path A19 that is communicated with chamber B11 on described upper cover 1, be provided with the path B20 that is communicated with described path A19 on described emergency vent valve body 5, the described path B20 other end is communicated with emergency chamber, described intercommunicating pore 13 is communicated with the path B20 on emergency vent valve body 5,, on described emergency vent valve body 5, be provided with shrinkage cavity A21 between path A19 and path B20, within forming the through hole of 7 center link 9, described urgent piston is provided with shrinkage cavity B22.
On described emergency vent valve body 5, cavity C 12 atmosphere entry places are provided with dustproof lamina membranacea 26.
Principle of work of the present invention: when derailment-preventive emergency valve was installed on vehicle, chamber A was communicated with train pipe, and chamber B is communicated with emergency chamber, and cavity C is communicated with atmosphere, and the pressure air that dustproof lamina membranacea does not affect cavity C is discharged into atmosphere.When vehicle operating, it is all the level pressure (500kPa or 600kPa) that equates that chamber A and chamber B are communicated with gas circuit, or the air pressure of chamber B is slightly less than the air pressure of chamber A, to prevent that test block moves down under normal circumstances, backs down push rod.
if vehicle derailing, because gravitate can accelerate to drop on sleeper or roadbed, it is in case contact with sleeper or roadbed, will be subject to one to upper support, speed reduces to rapidly zero, be that vehicle has a very large instantaneous upwards acceleration/accel, this acceleration/accel is delivered to the derailment-preventive emergency valve body by fastening attachment face, valve body also can produce very large instantaneous upwards acceleration/accel, because test block quality in upper cover is larger, the support spring of Partial shrinkage can't provide enough upwards thrust to make test block produce same large upwards acceleration/accel, at this moment, there will be the valve body accelerated movement that makes progress fast, the slow phenomenon of accelerated movement and test block makes progress, be that the relative valve body of test block has moved down exactly, because little valve is to fix on test block, test block can drive little valve and moves down together, thereby open the valve port of chamber B lower end, make the pressure air in chamber A become and act on the whole upper surface of test block from originally only acting on little valve, because active area increases, downward application force has also increased, the application force of the support spring support test block that has been nowhere near, this moment, test block can form to the lower compression supporting spring and by holding out against anxious piston under push rod, the center link that urgent piston forms holds out against down the push rod that anxious vent valve forms, causing emergency vent valve to form moves down, chamber A is communicated with cavity C, be that train pipe is communicated with atmosphere, make the pressure air of train pipe be discharged into rapidly atmosphere.Vehicle or train will produce emergency braking under the effect of brake control valve like this, and the quick brake application of brake cylinder and make vehicle or Train Stopping reduces the damage that vehicle and track are subject to as far as possible.
The foregoing is only preferred embodiment of the present invention,, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. derailment-preventive emergency valve, it is characterized in that: the upper cover that comprises emergency vent valve and with emergency vent valve, be connected (1), be provided with test block (2) and be connected to little valve (3) on test block (2) in described upper cover (1), be provided with support spring (4) in described test block (2) below, described support spring (4) upper end is resisted against test block (2) lower end, support spring (4) lower end abutment is in the emergency vent valve upper surface, described emergency vent valve comprises emergency vent valve body (5) and is arranged on the interior emergency vent valve composition (6) of emergency vent valve body (5) and urgent piston composition (7), in described upper cover (1), test block (2) below is provided with push rod (8), described push rod (8) lower end is passed emergency vent valve body (5) and is resisted against urgent piston composition (7) center link (9) upper end with through hole, form (7) below at described urgent piston and be provided with spring (14), it is the chamber A(10 that is communicated with train pipe with emergency vent valve body (5) interior separation that described emergency vent valve forms (6)) and the cavity C (12) that is communicated with atmosphere, in described upper cover (1), little valve (3) top is provided with the chamber B(11 that is communicated with emergency chamber), described chamber A(10) and chamber B(11) be interconnected by the upper intercommunicating pore (13) that arranges of center link (9).
2. derailment-preventive emergency valve according to claim 1, it is characterized in that: described emergency vent valve forms the piston (17) that (6) comprise emergency vent valve push rod (15), are arranged on the block (16) of emergency vent valve push rod (15) upper end and are resisted against emergency vent valve push rod (15) lower end, be provided with piston spring (18) in described piston (17) below, the cavity of described piston (17) below is by path C(24) with chamber A(10) be communicated with.
3. derailment-preventive emergency valve according to claim 2, is characterized in that: at described path C(24) in be provided with contracting stifled (25).
4. derailment-preventive emergency valve according to claim 2 is characterized in that: under normal circumstances, the block (16) that described emergency vent valve forms (6) is mutual disconnected chamber A(10 with emergency vent valve body (5) interior separation) and cavity C (12).
5. derailment-preventive emergency valve according to claim 4, it is characterized in that: under normal circumstances, between the lower end of test block (2) and push rod (8) upper end, certain interval is arranged, there is certain interval center link (9) lower end and emergency vent valve push rod (15) upper end that described urgent piston forms (7).
6. derailment-preventive emergency valve according to claim 1, it is characterized in that: be provided with and chamber B(11 on described upper cover (1)) the path A(19 that is communicated with), be provided with on described emergency vent valve body (5) and described path A(19) the path B(20 that is communicated with), described path B(20) and the other end is communicated with emergency chamber.
7. derailment-preventive emergency valve according to claim 6, it is characterized in that: the path B(20 on described intercommunicating pore (13) and emergency vent valve body (5)) be communicated with, path A(19 upper at described emergency vent valve body (5)) and path B(20) between be provided with shrinkage cavity A(21).
8. derailment-preventive emergency valve according to claim 7 is characterized in that: be provided with shrinkage cavity B(22 within described urgent piston forms the through hole of center link (9) of (7)).
9. derailment-preventive emergency valve according to claim 1 is characterized in that: be provided with card (23) on described test block (2) top, described card (23) fixes little valve (3) on test block (2).
10. the described derailment-preventive emergency valve of any one according to claim 1 to 9 is characterized in that:, cavity C (12) atmosphere entry place upper at described emergency vent valve body (5) is provided with dustproof lamina membranacea (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103644384A CN102431541B (en) | 2011-11-17 | 2011-11-17 | Derailment-preventive emergency valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103644384A CN102431541B (en) | 2011-11-17 | 2011-11-17 | Derailment-preventive emergency valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102431541A CN102431541A (en) | 2012-05-02 |
| CN102431541B true CN102431541B (en) | 2013-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103644384A Active CN102431541B (en) | 2011-11-17 | 2011-11-17 | Derailment-preventive emergency valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN102431541B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763831B (en) * | 2015-04-24 | 2017-02-01 | 眉山中车制动科技股份有限公司 | Safety valve |
| CN106051213B (en) * | 2016-07-27 | 2018-01-30 | 眉山中车制动科技股份有限公司 | A kind of rolling stock alleviation adjustment 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19544122A1 (en) * | 1995-03-27 | 1996-10-02 | Knorr Bremse Systeme | Derailment detector for rail vehicles |
| CN2873595Y (en) * | 2005-12-19 | 2007-02-28 | 杨金福 | Urgent braking device for train coach derail |
| CN100344486C (en) * | 2005-04-19 | 2007-10-24 | 唐山同力兴路科技有限公司 | Railway carriage derailing detector |
| CN202378855U (en) * | 2011-11-17 | 2012-08-15 | 四川制动科技股份有限公司 | Anti-derailing emergency valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101285053B1 (en) * | 2005-05-13 | 2013-07-10 | 아메트시스, 인제니리아 와이 아세소리아 테크니카 에스.엘. | Derailment control system |
| DE102009056931B4 (en) * | 2009-12-04 | 2013-12-24 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Derailment detector unit with increased sensitivity |
-
2011
- 2011-11-17 CN CN2011103644384A patent/CN102431541B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19544122A1 (en) * | 1995-03-27 | 1996-10-02 | Knorr Bremse Systeme | Derailment detector for rail vehicles |
| CN100344486C (en) * | 2005-04-19 | 2007-10-24 | 唐山同力兴路科技有限公司 | Railway carriage derailing detector |
| CN2873595Y (en) * | 2005-12-19 | 2007-02-28 | 杨金福 | Urgent braking device for train coach derail |
| CN202378855U (en) * | 2011-11-17 | 2012-08-15 | 四川制动科技股份有限公司 | Anti-derailing emergency valve |
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| Publication number | Publication date |
|---|---|
| CN102431541A (en) | 2012-05-02 |
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Address after: Three road 620010 Meishan province Sichuan City Dongpo District of Meishan science and Technology Industrial Park No. 68 Patentee after: Meisha Zhongke Brake Technology Co., Ltd. Address before: Three road 620010 Meishan province Sichuan City Dongpo District of Meishan science and Technology Industrial Park No. 68 Patentee before: Sichuan Brake Science and Technology Co. Ltd. |