CN103448710A - Check valve of train brake distribution valve - Google Patents
Check valve of train brake distribution valve Download PDFInfo
- Publication number
- CN103448710A CN103448710A CN2013103364236A CN201310336423A CN103448710A CN 103448710 A CN103448710 A CN 103448710A CN 2013103364236 A CN2013103364236 A CN 2013103364236A CN 201310336423 A CN201310336423 A CN 201310336423A CN 103448710 A CN103448710 A CN 103448710A
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- Prior art keywords
- check valve
- boiler check
- valve
- large end
- diameter
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- Check Valves (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
A check valve of a train brake distribution valve is provided with large end and a small end, and the outer lateral face of the large end is of a spherical face structure. The check valve has the advantages that the structure original check valve and external nut cap contact faces is modified, and the column face structure is changed into the spherical face structure. Before the modification, the outer column face and the inner hole of a check valve sleeve are blocked after inclination of the check valve; after the modification, the maximum value in each direction is the diameter of the sphere, blocking, after inclination of each direction, can be preventing by allowing the diameter of the sphere to be smaller than the inner diameter of the check valve sleeve.
Description
Technical field
The invention belongs to the boiler check valve of locomotive brake distributing valve, particularly the boiler check valve of F8 type series distributing valve.
Background technology
Boiler check valve is inflated to auxiliary reservoir for train pipe, and restricted charging speed; When train tube pressure descends, prevent that the auxiliary reservoir pressure air is to the train pipe adverse current.So boiler check valve needs knee-action in valve pocket.Current F8 distributing valve charging check valve and the contact surface of non-return valve pocket, adopt Cylindrical Surfaces Contact, and a small amount of gap arranged, but the boiler check valve of this kind of structure moves while occurring tilting in the non-return valve pocket, the situation with non-return valve pocket clamping stagnation occurs sometimes, and can not play the effect of auxiliary reservoir pressure air to the train pipe adverse current that prevent.
Summary of the invention
The boiler check valve that the purpose of this invention is to provide a kind of locomotive brake distributing valve, the solution boiler check valve moves while occurring tilting in the non-return valve pocket, sometimes the problem of the situation of appearance and non-return valve pocket clamping stagnation.
Content of the present invention
A kind of boiler check valve of locomotive brake distributing valve, have the large end of boiler check valve and the small end of boiler check valve, it is characterized in that: the large end lateral surface of boiler check valve is that shape is the spherical structure.
The ball diameter of the spherical of the large end lateral surface of boiler check valve is 21mm.
Characteristic advantage of the present invention:
The boiler check valve of this kind of locomotive brake distributing valve is that original structure to boiler check valve and outer blind nut contact surface is improved, change spherical structure into by cylindrical structure, due to the boiler check valve clamping stagnation before change be stuck in boiler check valve and tilt after, the endoporus of outside cylinder side and non-return valve pocket.And, after making globosity into, the maxim of all directions is all the diameter of ball.As long as guarantee that the diameter of ball is less than the internal diameter of non-return valve pocket, no matter in which direction, occur tilting, not there will be clamping stagnation.
The accompanying drawing explanation
Fig. 1 is the boiler check valve figure of locomotive brake distributing valve.
In figure: the large end of 1 boiler check valve, the small end of 2 boiler check valve, the large end endoporus of 3 boiler check valve, the small end endoporus of 4 boiler check valve.
The specific embodiment
The boiler check valve of a kind of locomotive brake distributing valve as shown in the figure, have the large end 1 of boiler check valve and the small end 2 of boiler check valve, in the large end of boiler check valve, endoporus 3 arranged, and it is that shape is the spherical structure that the large end lateral surface of endoporus 4 boiler check valve is arranged in the small end of boiler check valve.The ball diameter of the spherical of the large end lateral surface of boiler check valve is 21mm.
Claims (2)
1. the boiler check valve of a locomotive brake distributing valve, have the large end of boiler check valve and the small end of boiler check valve, it is characterized in that: the large end lateral surface of boiler check valve is that shape is the spherical structure.
2. the boiler check valve of locomotive brake distributing valve according to claim 1, it is characterized in that: the ball diameter of the spherical of the large end lateral surface of boiler check valve is 21mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103364236A CN103448710A (en) | 2013-08-05 | 2013-08-05 | Check valve of train brake distribution valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103364236A CN103448710A (en) | 2013-08-05 | 2013-08-05 | Check valve of train brake distribution valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103448710A true CN103448710A (en) | 2013-12-18 |
Family
ID=49731678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103364236A Pending CN103448710A (en) | 2013-08-05 | 2013-08-05 | Check valve of train brake distribution valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103448710A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105292095A (en) * | 2015-11-24 | 2016-02-03 | 天津机辆轨道交通装备有限责任公司 | Check valve of train brake distribution valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0634577B1 (en) * | 1993-07-16 | 1996-12-18 | Hydrolux S.A.R.L. | Two-way cartridge valve as seat valve |
| JPH11100750A (en) * | 1997-07-25 | 1999-04-13 | Kyotai Haku | Check valve for water jet loom |
| CN102303599A (en) * | 2011-04-13 | 2012-01-04 | 中国铁道科学研究院机车车辆研究所 | Brake control valve for express rail wagon, and working method for brake control valve |
| CN102975707A (en) * | 2012-11-13 | 2013-03-20 | 天津机辆轨道交通装备有限责任公司 | Railway vehicle braking air distribution valve according with UIC (International Union of Railways) standard |
| CN203410448U (en) * | 2013-08-05 | 2014-01-29 | 天津机辆轨道交通装备有限责任公司 | Check valve of train brake distribution valve |
-
2013
- 2013-08-05 CN CN2013103364236A patent/CN103448710A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0634577B1 (en) * | 1993-07-16 | 1996-12-18 | Hydrolux S.A.R.L. | Two-way cartridge valve as seat valve |
| JPH11100750A (en) * | 1997-07-25 | 1999-04-13 | Kyotai Haku | Check valve for water jet loom |
| CN102303599A (en) * | 2011-04-13 | 2012-01-04 | 中国铁道科学研究院机车车辆研究所 | Brake control valve for express rail wagon, and working method for brake control valve |
| CN102975707A (en) * | 2012-11-13 | 2013-03-20 | 天津机辆轨道交通装备有限责任公司 | Railway vehicle braking air distribution valve according with UIC (International Union of Railways) standard |
| CN203410448U (en) * | 2013-08-05 | 2014-01-29 | 天津机辆轨道交通装备有限责任公司 | Check valve of train brake distribution valve |
Non-Patent Citations (1)
| Title |
|---|
| 张旺狮: "《车辆制动装置》", 30 June 2004, 中国铁道出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105292095A (en) * | 2015-11-24 | 2016-02-03 | 天津机辆轨道交通装备有限责任公司 | Check valve of train brake distribution valve |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131218 |