CN104354688A - Exhaust valve - Google Patents
Exhaust valve Download PDFInfo
- Publication number
- CN104354688A CN104354688A CN201410630556.9A CN201410630556A CN104354688A CN 104354688 A CN104354688 A CN 104354688A CN 201410630556 A CN201410630556 A CN 201410630556A CN 104354688 A CN104354688 A CN 104354688A
- Authority
- CN
- China
- Prior art keywords
- piston
- cavity
- communicated
- valve
- cavity body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/021—Railway control or brake valves
- B60T15/022—Railway control or brake valves with one slide valve, e.g. an emergency slide valve
- B60T15/024—Railway control or brake valves with one slide valve, e.g. an emergency slide valve with quick braking action and evacuation of air to a reservoir, to the atmosphere or to the brake cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2240/00—Monitoring, detecting wheel/tire behaviour; counteracting thereof
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses an exhaust valve, comprising a valve body, a valve cover and an end cover, wherein the interior of the valve body is divided into an upper cavity body, a middle cavity body and a lower cavity body; the upper cavity body is internally provided with a piston; a compression spring is arranged between the piston and the valve cover; the upper cavity body is partitioned into two mutually independent vertical cavity bodies by the piston; the cavity body, which corresponds to the upper part of the piston, is communicated with an adjuster; the cavity body, which corresponds to the lower part of the piston, is communicated with an auxiliary reservoir; the valve body is internally provided with a piston rod; the upper end of the piston rod is connected with the piston; the upper cavity body and the middle cavity body are partitioned as mutually independent cavity bodies; the middle cavity body is communicated with a control valve; the lower cavity body is communicated with a brake cylinder; an atmospheric communicating port is formed in the end cover. According to the exhaust device, the brake cylinder can quickly exhaust air to atmosphere when wheels of a railway vehicle are in a sliding state, so that the further sliding of the wheels is prevented; the brake cylinder quickly reinflates when the wheels restore to rotate, so that the braking force of the vehicle can be restored quickly.
Description
Technical field
The invention 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.
Summary of the invention
The object of the invention is to: for above-mentioned Problems existing, provide a kind of under different conditions, the quick air draft of the pressure air of brake cylinder can be made, or make the braking force of vehicle be able to the mechanical type exhaust valve of fast quick-recovery.
Technical scheme of the present invention 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 present invention 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 invention.
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 present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearly understand, 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, be not intended to limit the present invention.
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 invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
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 |
|---|---|---|---|
| CN201410630556.9A CN104354688A (en) | 2014-11-11 | 2014-11-11 | Exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410630556.9A CN104354688A (en) | 2014-11-11 | 2014-11-11 | Exhaust valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104354688A true CN104354688A (en) | 2015-02-18 |
Family
ID=52522040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410630556.9A Pending CN104354688A (en) | 2014-11-11 | 2014-11-11 | Exhaust valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104354688A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2659769Y (en) * | 2003-09-17 | 2004-12-01 | 杨西凤 | Freight carrier self-release valve |
| CN200942778Y (en) * | 2006-04-30 | 2007-09-05 | 张振清 | Full-automatic freight car carriage alleviation valve |
| CN201009869Y (en) * | 2006-05-25 | 2008-01-23 | 金持平 | Automatic air discharge valve for running-off rails of railway vehicle |
| CN101691115A (en) * | 2009-09-28 | 2010-04-07 | 沈阳北车西屋轨道制动技术有限公司 | Vehicle relay valve |
| CN202091552U (en) * | 2011-03-28 | 2011-12-28 | 东台市东方船舶装配有限公司 | Pneumatic three-way valve |
| CN202971942U (en) * | 2012-11-22 | 2013-06-05 | 宁波亚德客自动化工业有限公司 | Pneumatic control two-way valve |
| CN204196888U (en) * | 2014-11-11 | 2015-03-11 | 四川制动科技股份有限公司 | A kind of exhaust valve |
-
2014
- 2014-11-11 CN CN201410630556.9A patent/CN104354688A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2659769Y (en) * | 2003-09-17 | 2004-12-01 | 杨西凤 | Freight carrier self-release valve |
| CN200942778Y (en) * | 2006-04-30 | 2007-09-05 | 张振清 | Full-automatic freight car carriage alleviation valve |
| CN201009869Y (en) * | 2006-05-25 | 2008-01-23 | 金持平 | Automatic air discharge valve for running-off rails of railway vehicle |
| CN101691115A (en) * | 2009-09-28 | 2010-04-07 | 沈阳北车西屋轨道制动技术有限公司 | Vehicle relay valve |
| CN202091552U (en) * | 2011-03-28 | 2011-12-28 | 东台市东方船舶装配有限公司 | Pneumatic three-way valve |
| CN202971942U (en) * | 2012-11-22 | 2013-06-05 | 宁波亚德客自动化工业有限公司 | Pneumatic control two-way valve |
| CN204196888U (en) * | 2014-11-11 | 2015-03-11 | 四川制动科技股份有限公司 | A kind of exhaust valve |
Non-Patent Citations (1)
| Title |
|---|
| SHUTTTT: "铁道机车车辆第六章制动装置", 《百度文库》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Three road 620010 Meishan province Sichuan City Dongpo District of Meishan science and Technology Industrial Park No. 68 Applicant 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 Applicant before: Sichuan Brake Science and Technology Co. Ltd. |
|
| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150218 |