CN202629087U - Selector valve for metro fire extinguishing system - Google Patents
Selector valve for metro fire extinguishing system Download PDFInfo
- Publication number
- CN202629087U CN202629087U CN 201220146918 CN201220146918U CN202629087U CN 202629087 U CN202629087 U CN 202629087U CN 201220146918 CN201220146918 CN 201220146918 CN 201220146918 U CN201220146918 U CN 201220146918U CN 202629087 U CN202629087 U CN 202629087U
- Authority
- CN
- China
- Prior art keywords
- valve
- piston
- valve body
- selector valve
- fire
- 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 - Fee Related
Links
Images
Abstract
The utility model relates to fire equipment, and in particular relates to a selector valve for a metro fire extinguishing system. The technical problems in the prior art that the linkage is not smooth, mechanical errors are easy to occur during a process of extinguishing fire and the like when the selector valve is adopted are solved. The selector valve comprises a valve body (1). The selector valve is characterized in that a seal cover (2) is arranged in the valve body (1); a piston rod (3) is inserted in the seal cover in a penetrating mode; a piston (4) is arranged at the lower end of the piston rod; a chute block (5) is fixedly arranged at the upper end of the piston rod; a crankshaft (6) is connected with the chute block in a sliding mode; the end part of the crankshaft is connected with a rotary shaft (7); the rotary shaft (7) is contacted with a pressing arm (8) which can be locked; the pressing arm is hinged on the valve body; an inner cavity (9) is formed in the valve body and is communicated with a fire extinguishing agent inlet (10) and a fire extinguishing agent outlet (11); a valve shaft (12) is arranged in the inner cavity; and a valve cap (13) is arranged at the upper end of the valve shaft.
Description
Technical field
The utility model relates to a kind of fire-fighting equipment, especially relates to a kind of subway fire-fighting system and uses selector valve.
Background technique
Selector valve is to be used for controlling the main actuator devices that fire-fighting fire extinguishing gas is carried switching at a distance.Its core component is outside at valve body, and complex structure, volume are big, valve close poor sealing performance, misoperation takes place easily.It is the left and right end that gets into piston cylinder through control gaseous, makes piston or move right left, and the piston top has two rotary guidees to drive shift forks and valve rod rotates, and realizes the switching control of valve.The break-make of valve is that the position by the through hole on the spheroid of valve inner determines, when turning over 90 °, closes, and when changeing 90 ° again opening state.Chinese patent discloses a kind of gas extinguishing system selector valve (notice of authorization number: CN2748723); It is provided with valve body, flap axle, seal ring, air storing cavity seal ring, cylinder body, piston, piston packing, flap axle head screw and hand control valve; Valve body is provided with import and outlet, and flap is located in the valve pocket of valve body, and the one of which end is positioned at the outlet of valve body; Be provided with air storing cavity between the other end and valve body, the top of flap axle and piston are spirally connected by flap axle head screw; Hand control valve is located at the top of valve body; Hand control valve is provided with hand control valve body, spool, gland, gland seal ring, spring, bonnet, hand control valve piston, straight pin, driving lever, and the import of hand control valve body is communicated with the selector valve valve body, and gland is located at the bottom of spool; The bottom of hand control valve piston connects the top of spool; Spring housing is located on the spool, and driving lever is connected with piston by straight pin, and the outlet of hand control valve valve body connects copper pipe by the flared fitting nut; Copper pipe connects tee union, and a port of tee union connects the cylinder body of selector valve.But this selector valve in use, and it is comparatively not smooth to link, and when fire extinguishing, produces mechanical failure easily.
The model utility content
The utility model provides a kind of subway fire-fighting system and uses selector valve, and it mainly is to solve the existing in prior technology selector valve in use, and it is comparatively not smooth link, easily the technical problem of generation mechanical failure etc. when fire extinguishing.
The above-mentioned technical problem of the utility model mainly is able to solve through following technical proposals:
A kind of subway fire-fighting system of the utility model is used selector valve, comprises valve body, is provided with capping in the described valve body, and cross-under has piston rod in the capping; Piston-rod lower end is provided with piston, and the piston rod upper end is fixed with runner block, slidely connects crank in the runner block, and crank end is connected with rotating shaft; The rotating shaft contact has can be by the pressure arm of its locking, and pressure arm is hinged on the valve body, and valve inner is provided with inner chamber; Inner chamber is communicated with extinguishing agent import and extinguishing agent outlet, and inner chamber is provided with curtain shaft, and the curtain shaft upper end is provided with bonnet.The outlet that selector valve is driven cylinder is imported source of the gas with after blocking at the piston place, and piston just can move upward, thereby drives the crank rotation through runner block.The rotating shaft that crank connects just can be rotated, and rotating shaft can be the semicircle axle, and the pressure arm end can have the groove of circular type; When the groove of pressure arm was left in rotating shaft, pressure arm just can be in free state, behind extinguishing agent inlet input source of the gas; Curtain shaft can back down pressure arm, opens the extinguishing agent outlet.
As preferably, described crank is connected with handle.When linked system is malfunctioning, can manually makes rotating shaft rotate through handle, thereby discharge pressure arm.
As preferably, described capping lower end is provided with cushion pad, is provided with Returnning spring between capping and the piston.Returnning spring can be with the piston pushed home.
As preferably, described piston, bonnet, curtain shaft end all and be provided with the O RunddichtringO between the valve interior wall prevent the gas leakage of valve inner.
Therefore, the utility model utilizes crank, rotating shaft and pressure arm to make and drives cylinder after inflation, and extinguishing agent is imported and exported rapid conducting, and it is comparatively smooth and easy to link, and when fire extinguishing, can not produce mechanical failure, simple and reasonable for structure.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the utility model;
Accompanying drawing 2 is side structure schematic representation of Fig. 1.
Component, position and numbering among the figure: valve body 1, capping 2, piston rod 3, piston 4, runner block 5, crank 6, rotating shaft 7, pressure arm 8, inner chamber 9, extinguishing agent import 10, extinguishing agent outlet 11, curtain shaft 12, bonnet 13, handle 14, cushion pad 15, Returnning spring 16, O RunddichtringO 17.
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technological scheme of the utility model.
Embodiment: a kind of subway fire-fighting system of this example is used selector valve, like Fig. 1, Fig. 2, a valve body 1 is arranged; Be provided with capping 2 in the valve body, cross-under has piston rod 3 in the capping, and piston-rod lower end is provided with piston 4; The capping lower end is provided with cushion pad 15, is provided with Returnning spring 16 between capping and the piston.The piston rod upper end is fixed with runner block 5, slidely connects crank 6 in the runner block, and crank is connected with handle 14.Crank end is connected with rotating shaft 7, and the rotating shaft contact has can be by the pressure arm 8 of its locking, and pressure arm is hinged on the valve body, and valve inner is provided with inner chamber 9, and inner chamber is communicated with extinguishing agent import 10 and extinguishing agent outlet 11, and inner chamber is provided with curtain shaft 12, and the curtain shaft upper end is provided with bonnet 13.Piston, bonnet, curtain shaft end are all and be provided with O RunddichtringO 17 between the valve interior wall.
During use, the outlet that selector valve is driven cylinder is imported source of the gas with after blocking at piston 4 places; Piston just can move upward, thereby drives crank 6 rotations through runner block 5, and the rotating shaft 7 that is connected with crank just can be rotated; When the groove of pressure arm 8 was left in rotating shaft, pressure arm just can be in free state, behind extinguishing agent import 10 places input source of the gas; Curtain shaft 12 can back down pressure arm, opens extinguishing agent outlet 11.
The above is merely the specific embodiment of the utility model; But the structure characteristic of the utility model is not limited thereto; Any those skilled in the art is in the field of the utility model, and variation of being done or modification all are encompassed among the claim of the utility model.
Claims (4)
1. a subway fire-fighting system is used selector valve, comprises valve body (1), it is characterized in that being provided with in the described valve body (1) capping (2); Cross-under has piston rod (3) in the capping, and piston-rod lower end is provided with piston (4), and the piston rod upper end is fixed with runner block (5); Slidely connect crank (6) in the runner block, crank end is connected with rotating shaft (7), and the rotating shaft contact has can be by the pressure arm of its locking (8); Pressure arm is hinged on the valve body, and valve inner is provided with inner chamber (9), and inner chamber is communicated with extinguishing agent import (10) and extinguishing agent outlet (11); Inner chamber is provided with curtain shaft (12), and the curtain shaft upper end is provided with bonnet (13).
2. a kind of subway fire-fighting system according to claim 1 is used selector valve, it is characterized in that described crank (6) is connected with handle (14).
3. a kind of subway fire-fighting system according to claim 1 and 2 is used selector valve, it is characterized in that described capping (2) lower end is provided with cushion pad (15), is provided with Returnning spring (16) between capping and the piston (4).
4. a kind of subway fire-fighting system according to claim 1 and 2 is used selector valve, it is characterized in that described piston (4), bonnet (13), curtain shaft (12) end all and between valve body (1) inwall are provided with O RunddichtringO (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220146918 CN202629087U (en) | 2012-04-10 | 2012-04-10 | Selector valve for metro fire extinguishing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220146918 CN202629087U (en) | 2012-04-10 | 2012-04-10 | Selector valve for metro fire extinguishing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202629087U true CN202629087U (en) | 2012-12-26 |
Family
ID=47382292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220146918 Expired - Fee Related CN202629087U (en) | 2012-04-10 | 2012-04-10 | Selector valve for metro fire extinguishing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202629087U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949295A (en) * | 2017-05-05 | 2017-07-14 | 南京消防器材股份有限公司 | A kind of two-stage opens selector valve |
-
2012
- 2012-04-10 CN CN 201220146918 patent/CN202629087U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949295A (en) * | 2017-05-05 | 2017-07-14 | 南京消防器材股份有限公司 | A kind of two-stage opens selector valve |
| CN106949295B (en) * | 2017-05-05 | 2022-11-29 | 南京消防器材股份有限公司 | Two-stage opening selection valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106641314B (en) | Pneumatic ball valve with automatic sealing function | |
| CN201687686U (en) | Automatic inflating pump | |
| CN103104715B (en) | Double-plate type ball valve | |
| CN105422897A (en) | Ultra-low temperature ball valve | |
| CN202629087U (en) | Selector valve for metro fire extinguishing system | |
| CN201884777U (en) | Nuclear manual rotary drum vacuum valve | |
| CN205859304U (en) | A kind of compact hand gear for pneumatic actuator | |
| CN109139944A (en) | A kind of novel movable flap of shut-off valve | |
| CN204985827U (en) | Fire -fighting spherical valve | |
| CN104613183A (en) | High-pressure butterfly valve | |
| CN2816519Y (en) | Corrugated pipe rotary-plug valve | |
| CN204477328U (en) | A kind of high pressure butterfly valve | |
| CN2823709Y (en) | Bellows butterfly valve | |
| CN208778726U (en) | A kind of chemical industry environmental protection air pressure isolating valve | |
| CN206874935U (en) | Pneumatic single-action double-flashboard gate valve | |
| CN205226444U (en) | Ultra -low temperature ball valve | |
| CN2823715Y (en) | Bellows ball valve | |
| CN201554882U (en) | Eccentric rotary valve with adjustable sealing force | |
| CN102278494B (en) | Completely-sealed zero-leakage ball valve | |
| CN102269277B (en) | Full-sealing zero leakage plug valve | |
| CN208123564U (en) | A kind of pneumostop butterfly valve | |
| CN220060644U (en) | High-temperature high-pressure reciprocating shaft sealing gas valve | |
| CN202140602U (en) | Fully-sealed and zero-leakage ball valve | |
| CN214662065U (en) | Quick high airtight valve | |
| CN104534117B (en) | A kind of low temperature prop open type ball surface gate valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20150410 |
|
| EXPY | Termination of patent right or utility model |