CN2136377Y - Automatic dischange valve - Google Patents
Automatic dischange valve Download PDFInfo
- Publication number
- CN2136377Y CN2136377Y CN 92217876 CN92217876U CN2136377Y CN 2136377 Y CN2136377 Y CN 2136377Y CN 92217876 CN92217876 CN 92217876 CN 92217876 U CN92217876 U CN 92217876U CN 2136377 Y CN2136377 Y CN 2136377Y
- Authority
- CN
- China
- Prior art keywords
- valve
- automatic
- vent
- lamina membranacea
- cylinder 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.)
- Expired - Lifetime
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model relates to an automatic exhaust valve, comprising a valve body, a valve core, an automatic exhaust cylinder body, a diaphragm plate, a spring, etc. The automatic exhaust valve is arranged at a pipeline connected with an air brake or an electro-pneumatic brake and a brake cylinder to automatically exhaust pressure air leaking into the brake cylinder, and when the brake cylinder works normal, the automatic exhaust valve can automatically close an exhaust valve port.
Description
The utility model is a kind of railway locomotive, car brakeing cylinder automatic exhaust device, is installed on brake and the pipeline that master cylinder is connected.
" spontaneous braking " phenomenon that causes to master cylinder leak pressure air owing to brake is that rolling stock urgently wishes the problem that solves.Provided a kind of cutout cock on Switzerland's Knorr brake, be installed on brake and the road that master cylinder is connected with exhaust.Its structure characteristic has been a threeway ports valve core, is installed in the valve body of a band exhaust port, and handgrip links to each other with spool.When brake when master cylinder has leaked pressure air, rotate handgrip 90 degree, threeway ports valve core has blocked the air passageways of brake and master cylinder, opened the passage of master cylinder and valve body exhaust port simultaneously, pressure air in the master cylinder then can be arranged to atmosphere to the valve body exhaust port through threeway ports valve core, and this plug door has following shortcoming:
1, need the driver to remove to pull Sai Men between from the control cab to machinery;
2, leak when serious to master cylinder when brake, the plug door need be in always and block the position, thereby makes brake promptly can not play braking action to the normal air feed of master cylinder;
3, leak and the driver does not discover and will fill in yet and pull when blocking to master cylinder when brake, master cylinder is in " spontaneous braking " state, brake shoe and wheel rub for a long time, produce high temperature, high heat, both wasted energy, again might breaking out of fire, the major break down of car crash such as rim is lax, rim is scurried out.
In view of these problems that exist in the above-mentioned prior art, task of the present utility model provides a kind of proper functioning that neither influences brake, can discharge the automatic control pressure vent that is bled into the pressure air in the master cylinder again automatically.
The utility model automatic control pressure vent is realized by following array structure: by valve body, spool, compositions such as spring, be installed on air damper or electro-pneumatic brake and the pipeline that master cylinder is connected, one automatic vent cylinder body 11 is arranged on the valve body 1, one vent ports is arranged on the cylinder wall, cylinder body is embedded with elasticity lamina membranacea 3, the center fixed one control valve rod of lamina membranacea 3, the bar of control valve rod 4 is logical core bars, by regulating lever 5 guiding, spring 7 is fixed between valve rod 4 and the regulating lever 5, there is a sealing gasket valve seat 6 tops, and valve seat 6 is to be threaded with regulating lever 5, and regulating lever 5 is to be threaded with automatic vent cylinder body 11, can adjust distance up and down, automatic vent cylinder body 11 is that the seam flange is connected with valve body 1, and its seam location also compresses lamina membranacea 3, and the bottom of automatic vent cylinder body 11 is flange seat 10 connections also, pedestal as regulating lever 5, lamina membranacea 3 is that macromolecular material is made, and the piston that lamina membranacea 3 also is fixed together with valve rod 4 can slide up and down in automatic vent cylinder body 11.
Description of drawings:
1, valve body 2, spool 3, lamina membranacea
4, valve rod 5, regulating lever 6, valve seat
7, spring 8, locking nut 9, pipe joint
10, flange seat 11, automatic vent cylinder body
Below in conjunction with accompanying drawing the utility model being done one describes in detail:
Brake is to master cylinder leak pressure air, cumulative process by liter above freezing is always arranged, when the pressure air that is bled into master cylinder is lower than certain set pressure, lamina membranacea 3 upper pressure are lower than spring set pressure value, spring struts valve rod 4, make its underpart valve port lift off a seat 6, pressure air is through pipe joint 9, valve body 1, spool 2, lamina membranacea 3 top cavitys, valve rod 4 center holes, valve seat 6 upper cavity, exhaust port row in the regulating lever 5 is to atmosphere, thereby can discharge the pressure air that is bled in the master cylinder automatically, guarantee the logical all the time atmosphere of master cylinder under non-braking state.When the brake normal brake application, the air pressure value that flows into master cylinder through this valve is higher than setting, and lamina membranacea 3 upper pressure are greater than the spring set pressure, and lamina membranacea 3 drives valve rod 4 and moves down, pole shutoff 4 bottom valve ports, thereby the proper functioning of assurance brake and master cylinder.The adjustment of operating pressure value realizes by regulating lever 5 turns.
Claims (5)
1, a kind of automatic control pressure vent, by valve body, spool, compositions such as spring, be installed on air damper or electro-pneumatic brake and the pipeline that master cylinder is connected, it is characterized in that an automatic vent cylinder body 11 is arranged on the valve body 1, one vent ports is arranged on the cylinder wall, cylinder body is embedded with elasticity lamina membranacea 3, the center fixed one control valve rod 4 of lamina membranacea 3, control valve rod 4 is logical core bars, and by regulating lever 5 guiding, spring 7 is fixed between valve rod 4 and the regulating lever 5, there is a sealing gasket valve seat 6 tops, valve seat 6 is to be threaded with regulating lever, and regulating lever 5 is to be threaded with automatic vent cylinder body 11, can adjust distance up and down.
2, according to the described automatic control pressure vent of claim 1, its feature is that also automatic vent cylinder body 11 and valve body 1 are that the seam flange is connected, and its seam location also compresses lamina membranacea 3.
3, automatic vent cylinder body 11 according to claim 2, its feature also are also flange seat 10 connections of inferior part of the cylinder block, as the pedestal of regulating lever 5.
4, automatic control pressure vent according to claim 1, its feature are that also lamina membranacea 3 is that macromolecular material is made.
5, lamina membranacea 3 according to claim 4, its feature also are also to slide up and down the piston that is fixed together with valve rod 4 in the automatic vent cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92217876 CN2136377Y (en) | 1992-09-24 | 1992-09-24 | Automatic dischange valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92217876 CN2136377Y (en) | 1992-09-24 | 1992-09-24 | Automatic dischange valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2136377Y true CN2136377Y (en) | 1993-06-16 |
Family
ID=33765582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92217876 Expired - Lifetime CN2136377Y (en) | 1992-09-24 | 1992-09-24 | Automatic dischange valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2136377Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112481116A (en) * | 2020-12-18 | 2021-03-12 | 吴世文 | Microbial feed additive fermentation air multistage filtration bacteria removing device |
-
1992
- 1992-09-24 CN CN 92217876 patent/CN2136377Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112481116A (en) * | 2020-12-18 | 2021-03-12 | 吴世文 | Microbial feed additive fermentation air multistage filtration bacteria removing device |
| CN112481116B (en) * | 2020-12-18 | 2022-05-17 | 张彦伟 | Microbial feed additive fermentation air multistage filtration bacteria removing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |