CN202541518U - Forced release valve of urban rail vehicle parking brake control unit - Google Patents
Forced release valve of urban rail vehicle parking brake control unit Download PDFInfo
- Publication number
- CN202541518U CN202541518U CN2012201798458U CN201220179845U CN202541518U CN 202541518 U CN202541518 U CN 202541518U CN 2012201798458 U CN2012201798458 U CN 2012201798458U CN 201220179845 U CN201220179845 U CN 201220179845U CN 202541518 U CN202541518 U CN 202541518U
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- China
- Prior art keywords
- valve
- valve body
- piston
- forced release
- parking brake
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- Expired - Fee Related
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Abstract
The utility model relates to a forced release valve of an urban rail vehicle parking brake control unit. The forced release valve comprises a main valve body and a pilot valve for controlling the main valve body, wherein the main valve body is a two-position three-way valve; the two-position three-way valve is provided with a control pressure port P and a pressure chamber communicated with the control pressure port P; power is provided for movement of a piston of the two-position three-way valve through the change of the pressure of the pressure chamber; and the pilot valve is connected with the main valve body via the control pressure port P. The forced release valve has the following beneficial effects: the forced release valve has reasonable structural design; the following performance parameters can be achieved by controlling the working condition of the main valve body with the pilot valve (small flow valve): (1) power voltage: DC110V+/-30%; (2) response time: not more than 100ms; and (3) normal diameter: not less than 12mm; and the forced release valve well achieves the forced release of the brake cylinder.
Description
Technical field
The utility model relates to a kind of release valve that forces of city rail vehicle parking brake control unit, particularly city rail vehicle parking brake control unit.
Background technology
The city rail vehicle brake system mainly is made up of braking control system, foundation brake rigging, air supply system, slip-proofing device etc.The parking brake control unit is the vitals of braking control system.Existing parking brake control unit system mainly is made up of Parking Brake Cylinders control gas circuit and AIRMATIC Dual Control pressure control gas circuit; On the operator's station of driver's cab, be provided with parking brake and apply/alleviate button; Apply/alleviate button through operation braking, the control parking brake applies/release electromagnetic valve must electric/dead electricity, Parking Brake Cylinders is carried out air draft/fill wind; Thereby the applying and alleviate of control parking brake, the state of parking brake shows on driver's cab TMS telltale.But when gas circuit broke down, brake cylinder can not be alleviated.Need develop a cover brake cylinder for head it off and force relieving apparatus.
The utility model content
The purpose of the utility model is the defective to prior art, provides a kind of and can force the release valve that forces alleviated to brake cylinder.
The technical scheme of the utility model is: a kind of city rail vehicle parking brake control unit force release valve; The described priority valve that forces release valve to comprise main valve body and control main valve body; Described main valve body is a two-position three-way valve; The pressure chamber that two-position three-way valve is provided with control presssure mouth P and communicates with it, the mobile power that provides of the piston of changing into two-position three-way valve of pressure chamber pressure, described priority valve is for to join through control presssure mouth P and main valve body.
Preferably: described two-position three-way valve is provided with inlet chamber, outlet chamber and discharge chamber; They are respectively arranged with admission port S, air extractor duct O and exhausr port E; Be respectively arranged with piston in inlet chamber and the discharge chamber; Piston links to each other through the piston rod that runs through outlet chamber, is provided with compression spring between the piston of discharge chamber and the main valve body.
Preferably: be provided with seal ring with the contacted position of main valve body on the described piston.
The beneficial effect of the utility model is: the utility model reasonable in design, and the mode of operation with priority valve (rill metered valve) control main valve body can enough reach following performance perameter: (1) power line voltage: DC110V ± 30%; (2) response time: be not more than 1OOms; (3) inside nominal diameter: be not less than 12mm.Well realized the alleviation that forces of brake cylinder.
Description of drawings
Fig. 1 is the sectional structure scheme drawing of the utility model
Fig. 2 is the schematic diagram of the utility model
The specific embodiment
The specific embodiment below in conjunction with description of drawings the utility model:
A kind of city rail vehicle parking brake control unit force release valve; The described priority valve that forces release valve to comprise main valve body and control main valve body; Described main valve body is a two-position three-way valve; The pressure chamber 1 that two-position three-way valve is provided with control presssure mouth P and communicates with it, the mobile power that provides of the piston of changing into two-position three-way valve 2 of pressure chamber 1 pressure, described priority valve is for to join through control presssure mouth P and main valve body.Described two-position three-way valve is provided with inlet chamber 3, outlet chamber 4 and discharge chamber 5; They are respectively arranged with admission port S, air extractor duct O and exhausr port E; Be respectively arranged with piston 6 in inlet chamber 3 and the discharge chamber 5; Piston 6 links to each other through the piston rod 6 that runs through outlet chamber 4, is provided with compression spring 7 between the piston 6 of discharge chamber 5 and the main valve body.Be provided with seal ring 8 with the contacted position of main valve body on the described piston 2.
During use, admission port S and BCU join, and air extractor duct and brake cylinder join.
The principle of work of brake cylinder is that inflation braking, exhaust are alleviated.Under the normal circumstances, the electromagnet that forces release valve is excitation not, and control presssure is cut off; Piston 2 arrives the high order end position under the spring force effect, open the passage to air extractor duct 0 by admission port S; The control presssure of being come by BCU directly arrives brake cylinder, and the control brake cylinder applies and alleviates brake action; In emergency circumstances, force release valve electromagnet excitation, control presssure is introduced into, and promotes piston and overcomes spring force arrival low order end, opens air extractor duct 0 to exhausr port E passage, and with the pressure air emptying of brake cylinder, brake cylinder is alleviated.
Claims (3)
1. a city rail vehicle parking brake control unit forces release valve; It is characterized in that: the described priority valve that forces release valve to comprise main valve body and control main valve body; Described main valve body is a two-position three-way valve; The pressure chamber that two-position three-way valve is provided with control presssure mouth P and communicates with it, the mobile power that provides of the piston of changing into two-position three-way valve of pressure chamber pressure, described priority valve is for to join through control presssure mouth P and main valve body.
2. city rail vehicle parking brake control unit as claimed in claim 1 force release valve; It is characterized in that: described two-position three-way valve is provided with inlet chamber, outlet chamber and discharge chamber; They are respectively arranged with admission port S, air extractor duct O and exhausr port E; Be respectively arranged with piston in inlet chamber and the discharge chamber, piston links to each other through the piston rod that runs through outlet chamber, is provided with compression spring between the piston of discharge chamber and the valve body.
According to claim 1 or claim 2 city rail vehicle parking brake control unit force release valve, it is characterized in that: be provided with seal ring with the contacted position of main valve body on the described piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201798458U CN202541518U (en) | 2012-04-26 | 2012-04-26 | Forced release valve of urban rail vehicle parking brake control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201798458U CN202541518U (en) | 2012-04-26 | 2012-04-26 | Forced release valve of urban rail vehicle parking brake control unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202541518U true CN202541518U (en) | 2012-11-21 |
Family
ID=47162192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201798458U Expired - Fee Related CN202541518U (en) | 2012-04-26 | 2012-04-26 | Forced release valve of urban rail vehicle parking brake control unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202541518U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307310A (en) * | 2013-06-27 | 2013-09-18 | 天津华宁电子有限公司 | Electromagnetic pilot valve |
| CN104260745A (en) * | 2014-09-28 | 2015-01-07 | 青岛思锐科技有限公司 | Motor train unit brake control unit |
| CN106064635A (en) * | 2016-07-20 | 2016-11-02 | 克诺尔车辆设备(苏州)有限公司 | There is the parking brake control unit of long-range mitigation capability |
| CN107531222A (en) * | 2015-06-10 | 2018-01-02 | 威伯科有限公司 | Method for adjusting the brake in trailer |
-
2012
- 2012-04-26 CN CN2012201798458U patent/CN202541518U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307310A (en) * | 2013-06-27 | 2013-09-18 | 天津华宁电子有限公司 | Electromagnetic pilot valve |
| CN103307310B (en) * | 2013-06-27 | 2015-12-09 | 天津华宁电子有限公司 | The electromagnetic priority valve of mine hydraulic bracket electrohydraulic control system |
| CN104260745A (en) * | 2014-09-28 | 2015-01-07 | 青岛思锐科技有限公司 | Motor train unit brake control unit |
| CN107531222A (en) * | 2015-06-10 | 2018-01-02 | 威伯科有限公司 | Method for adjusting the brake in trailer |
| CN106064635A (en) * | 2016-07-20 | 2016-11-02 | 克诺尔车辆设备(苏州)有限公司 | There is the parking brake control unit of long-range mitigation capability |
| CN106064635B (en) * | 2016-07-20 | 2018-08-07 | 克诺尔车辆设备(苏州)有限公司 | Parking brake control unit with long-range mitigation capability |
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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. Patentee after: Qingdao Sirui Technology Co., Ltd. Address before: 266000 No. 231, Ruichang Road, Sifang District, Shandong, Qingdao Patentee before: Qingdao Sifang Rolling Stock Research Institute Co., Ltd. Patentee before: Qingdao Sirui Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20210426 |