CN201896967U - Double pneumatic control pressure difference function valve - Google Patents
Double pneumatic control pressure difference function valve Download PDFInfo
- Publication number
- CN201896967U CN201896967U CN201020659730XU CN201020659730U CN201896967U CN 201896967 U CN201896967 U CN 201896967U CN 201020659730X U CN201020659730X U CN 201020659730XU CN 201020659730 U CN201020659730 U CN 201020659730U CN 201896967 U CN201896967 U CN 201896967U
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- valve
- piston
- air
- valve body
- pneumatic control
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Abstract
The utility model relates to a double pneumatic control pressure difference function valve. The double pneumatic control pressure difference function valve is a three-position five-way valve, and mainly comprises a valve body and a valve cap, wherein the valve cap is installed at one end of the valve body, a sleeve pipe is arranged in the valve body, a piston is sleeved with a sleeve pipe body of the sleeve pipe, a gear spacing assembly is arranged on two sides of the piston respectively, clearances are reserved between the piston and the gear spacing assemblies, four air pipes, namely two air inlet pipes and two air outlet pipes, are connected onto the valve body. The double pneumatic control pressure difference function valve provided by the utility model has the advantages of simple and reasonable structure and convenience in use. When an air spring in two air springs of a same bogie fails and leaks air quickly, the air pressure values at two ends of the piston are different, the piston approaches a side with smaller air pressure value, air in an auxiliary air chamber of the air spring without any fault is discharged through an air outlet pipe communicated with a fault indicator, and the fault indicator is started up to issue visual or audio signals to train staff.
Description
Technical field
The utility model relates to a kind of safe error prevention device that is applied to the railroad train air spring suspension system, specifically, relates to a kind of Pneumatic valve that starts the concurrent number of delivering letters of indicator when pneumatic spring breaks down.
Background technique
In the running of railroad train, pneumatic spring can be worked having under gas and the no gas two states.When no gaseity, load acts directly on the emergent rubber spring from car body, because the rigidity of emergent rubber spring, makes have the running state of gas, two kinds of situations of no gas to differ widely greater than whole spring, has certain potential safety hazard.Simultaneously, because pneumatic spring is when breaking down, there is not the pneumatic spring accident indicator on the train, the road man can not find timely that pneumatic spring breaks down, and the fault of pneumatic spring detected processing effectively, and the fault of pneumatic spring only could be found in maintenance with when safeguarding.Therefore, in train high speed operation process, in case pneumatic spring breaks down, and the road man fails in time to find and make effectively and detect, handle, and then very easily has an accident, even jeopardizes personnel's life safety by bus.
The model utility content
The purpose of this utility model be at existing railroad train in running because the pneumatic spring the problems referred to above such as can not in time carrying out indicating fault that break down, provide a kind of simple and reasonable, detect the pneumatic spring fault, start fault indication device and send the double air controlled differential displacing valve of brake signal.
The technical solution of the utility model is: a kind of double air controlled differential displacing valve, described double air controlled differential displacing valve is a three position five-way valve, mainly comprise valve body and valve gap, valve gap is installed in an end of valve body, be provided with sleeve in the valve body, be set with piston in the cylindrical shell of sleeve, the both sides of piston are respectively arranged with a limit retaining to be formed, and piston and limit retaining leave the space between forming; Be connected with four tracheaes on the valve body, wherein, two is suction tude, and other two is steam outlet pipe;
Preferably, the middle position bottom the described valve body is provided with an open to atmosphere aperture;
Preferably, the vertical part of described piston and limit retaining leave the space between forming;
Preferably, between described valve body and the sleeve, be respectively arranged with round section joint ring between sleeve and the piston.
The beneficial effects of the utility model are: the utility model is simple and reasonable, easy to use.During use, two air inlets are connected with the pneumatic spring auxiliary chamber respectively, two steam outlet pipes are communicated with fault indication device and Brake pipe respectively.When two pneumatic spring proper functioning of same bogie, the atmospheric pressure value at piston two ends is identical, and piston mediates, and two steam outlet pipes communicate with atmosphere; When a pneumatic spring in two pneumatic springs of same bogie breaks down gas leakage fast, the atmospheric pressure value difference at piston two ends, piston is to the little side shifting of atmospheric pressure value, gas in the pneumatic spring auxiliary chamber that does not break down is discharged by the steam outlet pipe that is communicated with fault indication device, and the startup fault indication device, send visible signal or audible signal by fault indication device to train crews; Simultaneously, under the gas pressure of steam outlet pipe discharge gas, open the path of Brake pipe and atmosphere, make train generation emergency braking effect.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model specific embodiment;
Accompanying drawing 2 is that the A of the utility model accompanying drawing 1 is to structural representation;
Accompanying drawing 3 is the B-B cross-sectional view of the utility model accompanying drawing 2.
Embodiment
Embodiment of the present utility model: as shown in Figures 1 to 3, a kind of double air controlled differential displacing valve, described double air controlled differential displacing valve is a three position five-way valve, mainly comprise valve body 1 and valve gap 2, valve gap 2 is installed in an end of valve body 1, is provided with sleeve 3 in the valve body 1, is set with piston 4 in the cylindrical shell of sleeve 3, the both sides of piston 4 are respectively arranged with a limit retaining and form 5, and piston 4 and limit retaining leave the space between forming 5; Be connected with four tracheaes on the valve body 1, wherein, two is suction tude 6,7, and other two is steam outlet pipe 8,9; Two suction tude 6,7 are connected with the pneumatic spring auxiliary chamber respectively, and two steam outlet pipes 8,9 are communicated with fault indication device and Brake pipe respectively.1 one middle position is provided with an open to atmosphere aperture 10 at the bottom of the valve body.When the pneumatic spring proper functioning, the atmospheric pressure value at piston 4 two ends is identical, and piston 4 mediates, and two steam outlet pipes 8,9 communicate with atmosphere.The vertical part of piston 4 and limit retaining leave the space between forming 5.Between valve body 1 and the sleeve 3, be respectively arranged with round section joint ring 11 between sleeve 3 and the piston 4.
During use, two suction tude are connected with the pneumatic spring auxiliary chamber respectively, two steam outlet pipes are communicated with fault indication device and Brake pipe respectively.When breaking down for one in two pneumatic springs of bogie, air pressure reduction in corresponding and the auxiliary chamber that this pneumatic spring is connected, piston is to the low side shifting of atmospheric pressure value; At this moment, can discharge by the steam outlet pipe that is communicated with fault indication device with the gas in the auxiliary chamber that another pneumatic spring is connected, and start indicator, send visible signal or audible signal to train crews by indicator; Simultaneously, under the gas pressure of steam outlet pipe discharge gas, open the path of Brake pipe and atmosphere, make train generation emergency braking effect.
Claims (4)
1. double air controlled differential displacing valve, it is characterized in that: described double air controlled differential displacing valve is a three position five-way valve, mainly comprise valve body and valve gap, valve gap is installed in an end of valve body, be provided with sleeve in the valve body, be set with piston in the cylindrical shell of sleeve, the both sides of piston are respectively arranged with a limit retaining to be formed, and piston and limit retaining leave the space between forming; Be connected with four tracheaes on the valve body, wherein, two is suction tude, and other two is steam outlet pipe.
2. double air controlled differential displacing valve according to claim 1 is characterized in that: the middle position of described valve body bottom is provided with an open to atmosphere aperture.
3. double air controlled differential displacing valve according to claim 1 is characterized in that: the vertical part of described piston and limit retaining leave the space between forming.
4. double air controlled differential displacing valve according to claim 1 is characterized in that: between described valve body and the sleeve, be respectively arranged with round section joint ring between sleeve and the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020659730XU CN201896967U (en) | 2010-12-15 | 2010-12-15 | Double pneumatic control pressure difference function valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020659730XU CN201896967U (en) | 2010-12-15 | 2010-12-15 | Double pneumatic control pressure difference function valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201896967U true CN201896967U (en) | 2011-07-13 |
Family
ID=44254874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020659730XU Expired - Lifetime CN201896967U (en) | 2010-12-15 | 2010-12-15 | Double pneumatic control pressure difference function valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201896967U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034483A (en) * | 2014-06-04 | 2014-09-10 | 成都来宝石油设备有限公司 | Sealing plug for valve pressure-proof sealing test |
| CN104100739A (en) * | 2014-07-25 | 2014-10-15 | 株洲高新技术产业开发区壹星科技有限公司 | Pneumatic control combination valve and application method thereof |
| CN107289150A (en) * | 2017-08-16 | 2017-10-24 | 中车青岛四方车辆研究所有限公司 | A kind of average valve of many gas circuits |
| CN106286858B (en) * | 2016-10-19 | 2018-11-02 | 中国铁路总公司 | A kind of hopper wagon, which is unloaded, uses application valve |
| CN108799560A (en) * | 2018-07-27 | 2018-11-13 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of blocking valve with vapour vertical shaft |
-
2010
- 2010-12-15 CN CN201020659730XU patent/CN201896967U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034483A (en) * | 2014-06-04 | 2014-09-10 | 成都来宝石油设备有限公司 | Sealing plug for valve pressure-proof sealing test |
| CN104100739A (en) * | 2014-07-25 | 2014-10-15 | 株洲高新技术产业开发区壹星科技有限公司 | Pneumatic control combination valve and application method thereof |
| CN104100739B (en) * | 2014-07-25 | 2016-08-31 | 株洲壹星科技股份有限公司 | Gas control combination valve and using method thereof |
| CN106286858B (en) * | 2016-10-19 | 2018-11-02 | 中国铁路总公司 | A kind of hopper wagon, which is unloaded, uses application valve |
| CN107289150A (en) * | 2017-08-16 | 2017-10-24 | 中车青岛四方车辆研究所有限公司 | A kind of average valve of many gas circuits |
| CN108799560A (en) * | 2018-07-27 | 2018-11-13 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of blocking valve with vapour vertical shaft |
| CN108799560B (en) * | 2018-07-27 | 2023-11-03 | 中国电力工程顾问集团西北电力设计院有限公司 | Blocking valve of steam distribution vertical shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 266000 No. 231, Ruichang Road, Sifang District, Shandong, Qingdao Patentee after: CRRC QINGDAO SIFANG VEHICLE RESEARCH INSTITUTE CO., LTD. Address before: 266000 No. 231, Ruichang Road, Sifang District, Shandong, Qingdao Patentee before: Qingdao Sifang Rolling Stock Research Institute Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110713 |
|
| CX01 | Expiry of patent term |