CN204196888U - A kind of exhaust valve - Google Patents
A kind of exhaust valve Download PDFInfo
- Publication number
- CN204196888U CN204196888U CN201420669146.0U CN201420669146U CN204196888U CN 204196888 U CN204196888 U CN 204196888U CN 201420669146 U CN201420669146 U CN 201420669146U CN 204196888 U CN204196888 U CN 204196888U
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- cavity
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- piston rod
- valve
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Abstract
The utility model discloses a kind of exhaust valve, comprise valve body, valve gap and end cap, described valve inner is divided into upper cavity, middle cavity and lower chamber, piston is provided with in described upper cavity, Compress Spring is provided with between described piston and valve gap, upper cavity is divided into separate two cavitys up and down by described piston, cavity corresponding above described piston is communicated with regulating control, cavity corresponding below described piston is communicated with auxiliary reservoir, piston rod is provided with in described valve body, described piston rod upper end is connected with piston, described upper cavity and middle cavity are divided into separate cavity, described middle cavity is communicated with control cock, described lower chamber is communicated with brake cylinder, described end cap is provided with atmosphere entry.The utility model can make the wheel of railway vehicle when sliding, and realizes brake cylinder to the quick air draft of air, and to avoid wheel to slide further, and when wheel recovers to rotate, realizing brake cylinder inflates fast again, is able to fast quick-recovery to make the braking force of vehicle.
Description
Technical field
The utility model belongs to rolling stock technology field, particularly a kind of exhaust valve being used in railway vehicle anti-skid device.
Background technology
At present, electronic antiskid device is the important component part in passenger train high speed brake system, and effectively can prevent sliding of wheel and the tread friction that causes when its Main Function is braking, in use, electronic antiskid device is controlled by electromagnetic valve.And in existing railway truck, owing to railway truck there not being energising arrange, therefore electronic antiskid device cannot use on railway truck, thus railway truck is caused to there is corresponding problem when braking.
Utility model content
Goal of the invention of the present utility model is: for above-mentioned Problems existing, provides a kind of under different conditions, can make the quick air draft of the pressure air of brake cylinder, or make the braking force of vehicle be able to the mechanical type exhaust valve of fast quick-recovery.
The technical solution of the utility model is achieved in that a kind of exhaust valve, the valve gap comprising valve body and be connected with valve body upper and lower side and end cap, it is characterized in that: described valve inner is divided into upper cavity, middle cavity and lower chamber, piston is provided with in described upper cavity, Compress Spring is provided with between described piston and valve gap, upper cavity is divided into separate two cavitys up and down by described piston, cavity corresponding above described piston is communicated with regulating control, cavity corresponding below described piston is communicated with auxiliary reservoir, piston rod is provided with in described valve body, described piston rod upper end is connected with piston, described piston rod top coordinates with body cavity, described upper cavity and middle cavity are divided into separate cavity, described middle cavity is communicated with control cock, described lower chamber is communicated with brake cylinder, described end cap is provided with atmosphere entry, when the wheel of railway vehicle is when sliding, described piston rod is in upper extreme position, now the upper valve port of underpart of the piston rod is closed, described lower chamber is communicated with the atmosphere entry on end cap, and lower chamber and middle cavity are in off state, when the wheel of railway vehicle recovers to rotate, described piston rod is in lower limit position, now the lower valve port of underpart of the piston rod is closed, and described lower chamber is communicated with middle cavity, and the atmosphere entry on lower chamber and end cap is in off state.
The utility model is coordinated by valve body inner carrier and piston rod, the wheel of railway vehicle can be made when sliding, realize brake cylinder to the quick air draft of air, slide further to avoid wheel, and when braking force is reduced to necessarily, when wheel recovers to rotate, realize brake cylinder and inflate again fast, be able to fast quick-recovery to make the braking force of vehicle.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Mark in figure: 1 is valve body, and 1a is upper cavity, and 1b is middle cavity, and 1c is lower chamber, and 2 is valve gap, and 3 is end cap, and 4 is piston, and 5 is Compress Spring, and 6 is piston rod, and 7 is atmosphere entry, and 8 is upper valve port, and 9 is lower valve port.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, a kind of exhaust valve, the valve gap 2 comprising valve body 1 and be connected with valve body 1 upper and lower side and end cap 3, described valve body 1 inside is divided into upper cavity 1a, middle cavity 1b and lower chamber 1c, piston 4 is provided with in described upper cavity 1a, Compress Spring 5 is provided with between described piston 4 and valve gap 2, upper cavity 1a is divided into separate two cavitys up and down by described piston 4, cavity corresponding above described piston 4 is communicated with regulating control, cavity corresponding below described piston 4 is communicated with auxiliary reservoir, piston rod 6 is provided with in described valve body 1, described piston rod 6 upper end is connected with piston 4, described piston rod 6 top coordinates with valve body 1 inner chamber, described upper cavity 1a and middle cavity 1b is divided into separate cavity, described middle cavity 1b is communicated with control cock, described lower chamber 1c is communicated with brake cylinder, described end cap 3 is provided with atmosphere entry 7.
When the wheel of railway vehicle is when sliding, regulating control air draft, the pressure balance of piston upper and lower is broken, and piston moves up, thus drive piston rod 6 to move to upper extreme position, now the upper valve port 8 of piston rod 6 bottom is closed, and described lower chamber 1c and middle cavity 1b is in off state, and namely control cock is to the path blockade of brake cylinder, and lower valve port 9 is opened, described lower chamber 1c is communicated with the atmosphere entry 7 on end cap 3, and namely brake cylinder is to the quick air draft of air, slides further to avoid wheel; When braking force is reduced to necessarily, when the wheel of railway vehicle recovers to rotate, described piston rod 6 moves to lower limit position, and now the lower valve port 9 of piston rod 6 bottom is closed, and the atmosphere entry 7 on described lower chamber 1c and end cap 3 is in off state, namely brake cylinder stops to air air draft, and upper valve port 8 is opened, described lower chamber 1c is communicated with middle cavity 1b, and namely control cock fills wind to brake cylinder, thus realize brake cylinder and inflate again fast, be able to fast quick-recovery to make the braking force of vehicle.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (1)
1. an exhaust valve, the valve gap (2) comprising valve body (1) and be connected with valve body (1) upper and lower side and end cap (3), it is characterized in that: described valve body (1) inside is divided into upper cavity (1a), middle cavity (1b) and lower chamber (1c), piston (4) is provided with in described upper cavity (1a), Compress Spring (5) is provided with between described piston (4) and valve gap (2), upper cavity (1a) is divided into separate two cavitys up and down by described piston (4), the cavity of described piston (4) top correspondence is communicated with regulating control, the cavity of described piston (4) below correspondence is communicated with auxiliary reservoir, piston rod (6) is provided with in described valve body (1), described piston rod (6) upper end is connected with piston (4), described piston rod (6) top coordinates with valve body (1) inner chamber, described upper cavity (1a) and middle cavity (1b) are divided into separate cavity, described middle cavity (1b) is communicated with control cock, described lower chamber (1c) is communicated with brake cylinder, described end cap (3) is provided with atmosphere entry (7), when the wheel of railway vehicle is when sliding, described piston rod (6) is in upper extreme position, now the upper valve port (8) of piston rod (6) bottom is closed, described lower chamber (1c) is communicated with the atmosphere entry (7) on end cap (3), and lower chamber (1c) and middle cavity (1b) are in off state, when the wheel of railway vehicle recovers to rotate, described piston rod (6) is in lower limit position, now the lower valve port (9) of piston rod (6) bottom is closed, described lower chamber (1c) is communicated with middle cavity (1b), and lower chamber (1c) is in off state with the atmosphere entry (7) on end cap (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420669146.0U CN204196888U (en) | 2014-11-11 | 2014-11-11 | A kind of exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420669146.0U CN204196888U (en) | 2014-11-11 | 2014-11-11 | A kind of exhaust valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204196888U true CN204196888U (en) | 2015-03-11 |
Family
ID=52654876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420669146.0U Active CN204196888U (en) | 2014-11-11 | 2014-11-11 | A kind of exhaust valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204196888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104354688A (en) * | 2014-11-11 | 2015-02-18 | 四川制动科技股份有限公司 | Exhaust valve |
-
2014
- 2014-11-11 CN CN201420669146.0U patent/CN204196888U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104354688A (en) * | 2014-11-11 | 2015-02-18 | 四川制动科技股份有限公司 | Exhaust valve |
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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: 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. |