CN2688988Y - Start pressure reducing valve of wind-power fire extinguisher - Google Patents
Start pressure reducing valve of wind-power fire extinguisher Download PDFInfo
- Publication number
- CN2688988Y CN2688988Y CN 200420026153 CN200420026153U CN2688988Y CN 2688988 Y CN2688988 Y CN 2688988Y CN 200420026153 CN200420026153 CN 200420026153 CN 200420026153 U CN200420026153 U CN 200420026153U CN 2688988 Y CN2688988 Y CN 2688988Y
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- valve
- valve body
- pressure reducing
- wind
- fire extinguisher
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Abstract
The utility model relates to a start pressure reducing valve of a wind-power fire extinguisher, comprising a valve body and mounting screw threads. The start pressure reducing valve of the wind-power fire extinguisher is characterized in that: the lower part of the valve body is provided with a valve core seat which is assembled with a valve core; the upper part of the valve body is provided with a spring seat; the valve rod of the valve core is penetrated through the valve cavity and the spring seat of the valve body; the end part of the valve rod is provided with a pressure reducing button, and a reset spring is provided between the pressure reducing button and the spring seat of the valve body; the side wall of the valve body is provided with a vent hole which is communicated with the valve cavity. The utility model has the advantages that when the wind-power fire extinguisher is provided with the start pressure reducing valve, the pressure in a cylinder is obviously decreased in earlier starting process, which is good for prolonging the service life of a pull rope and increasing the initial rotary speed in start, so that a magneto is made to generate stronger electric spark, which is good for the normal start of a petrol engine.
Description
Technical field
The utility model relates to a kind of startup decompressor, especially a kind of startup reduction valve of Pneumatic extinguisher.
Background technique
Fire is the formidable enemy of forest.Woods fire has brought tremendous loss not only for human lives and properties and natural resources, and to the remote-effects of global climate vegetation and ecotope considerably beyond its economic loss.The significant damage of woods fire forces people to strengthen research and anti-going out to it.
Pneumatic extinguisher is born in late nineteen seventies early eighties in last century, the history surplus in the of existing so far 20 year, and it has experienced the test of more than 2000 woods fire, has become forest fire prevention and control specialty put out the fire team, the main battle weapons of forest People's Armed Police officers and men in fire extinguishing.Facts have proved that Pneumatic extinguisher can put out the ground surface fire quickly and effectively, beating firebreak has positive effect.
Also exposed the problem that traditional Pneumatic extinguisher exists in the use, because traditional Pneumatic extinguisher is furnished with the portable petrol engine of two-stroke that adopts pump diaphragm type carburator usually, start and generally all rely on stay cord, during startup, the pressure in the cylinder will act on stay cord, will inevitably quicken the wearing and tearing of stay cord, shorten the working life of stay cord, according to the investigation of scene of fire, the reason that has 1/4th Pneumatic extinguisher can't start in the scene of fire approximately is all because stay cord damages causes.Simultaneously, the pressure in the cylinder also is unfavorable for improving the initial speed when starting, and directly has influence on the spark intensity that magnetogenerator produces, and is unfavorable for the normal startup of petrol engine.
Summary of the invention:
The purpose of this utility model is: at the problem that traditional Pneumatic extinguisher exists in actual use, provide a kind of startup reduction valve of Pneumatic extinguisher.
The purpose of this utility model is achieved in that a kind of startup reduction valve of Pneumatic extinguisher, comprise the installation rib-loop on valve body and the valve body, it is characterized in that: valve body lower portion is provided with valve core case, is furnished with spool on the valve core case, valve body top is provided with spring seat, and the valve rod of spool was scurried the valve pocket and the spring seat of valve body, and the end of valve rod is provided with the decompression button, be provided with Returnning spring between the spring seat of decompression button and valve body, the sidewall of valve body is provided with the exhaust port of linking up with valve pocket.
Advantage of the present utility model is: after Pneumatic extinguisher has disposed the startup reduction valve, in the start-up course, in earlier stage the pressure in the cylinder will obviously reduce, this will help prolonging working life, the initial speed when improving startup of stay cord, make magnetogenerator produce stronger electrical spark, help the normal startup of two-stroke gasoline engine.
Description of drawings:
Fig. 1 is the startup structure of relief pressure valve schematic representation of a kind of Pneumatic extinguisher of relating to of the utility model;
Fig. 2 is the mounting point schematic representation of startup reduction valve on cylinder block of Pneumatic extinguisher.
Among the figure: 1, valve body, 2, spool, 3, valve pocket, 4, exhaust port, 5, valve rod, 6, Returnning spring, 7, the decompression button, 8, cylinder block, 9, spark plug.
Embodiment:
Accompanying drawing is nonrestrictive to disclose the startup structure of relief pressure valve schematic representation of a kind of Pneumatic extinguisher that the utility model embodiment relates to, and below in conjunction with accompanying drawing the utility model embodiment is further described.
As seen from Figure 1, the utility model comprises valve body 1, valve body 1 is provided with the installation rib-loop, valve body 1 bottom is provided with valve core case, is furnished with spool 2 on the valve core case, and valve body 1 top is provided with spring seat, the valve rod 5 of spool 2 was scurried the valve pocket 3 and the spring seat of valve body 1, the end of valve rod 5 is provided with decompression button 7, is provided with Returnning spring 6 between the spring seat of decompression button 7 and valve body 1, and the sidewall of valve body 1 is provided with the exhaust port 4 of linking up with valve pocket 3.
As seen from Figure 2, should be installed in the top of the cylinder block 8 of the portable petrol engine of two-stroke during the utility model uses, spark plug 9 also is equipped with at the top of cylinder block 8.
Before the startup, press decompression button 7 earlier, overcome the elastic force of Returnning spring 6, by valve rod 5 spool 2 is moved down, during startup, under the pull effect of stay cord, piston is to-and-fro motion in cylinder, the pressurized gas that forms in the cylinder is discharged by the valve pocket 3 and the exhaust port 4 that start in the reduction valve, and the pressure in the cylinder is less, helps improving rotating speed, make magnetogenerator produce stronger electrical spark, when rotating speed is higher, unclamp decompression button 7 rapidly, move making on the spool 2 under the effect of Returnning spring 6 this moment, blocked the discharge passage of pressurized gas, the temperature of pressurized gas rises in the cylinder, and pressure raises rapidly, runs into stronger electrical spark this moment and is easy to start.
Claims (1)
1, a kind of startup reduction valve of Pneumatic extinguisher, comprise the installation rib-loop on valve body and the valve body, it is characterized in that: valve body lower portion is provided with valve core case, is furnished with spool on the valve core case, valve body top is provided with spring seat, and the valve rod of spool was scurried the valve pocket and the spring seat of valve body, and the end of valve rod is provided with the decompression button, be provided with Returnning spring between the spring seat of decompression button and valve body, the sidewall of valve body is provided with the exhaust port of linking up with valve pocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420026153 CN2688988Y (en) | 2004-04-12 | 2004-04-12 | Start pressure reducing valve of wind-power fire extinguisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420026153 CN2688988Y (en) | 2004-04-12 | 2004-04-12 | Start pressure reducing valve of wind-power fire extinguisher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2688988Y true CN2688988Y (en) | 2005-03-30 |
Family
ID=34670090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420026153 Expired - Fee Related CN2688988Y (en) | 2004-04-12 | 2004-04-12 | Start pressure reducing valve of wind-power fire extinguisher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2688988Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319493A (en) * | 2011-09-21 | 2012-01-18 | 孙士庆 | Backpack pneumatic extinguisher with V-type double-cylinder two-stroke gasoline engine as power source |
| CN103410707A (en) * | 2013-08-27 | 2013-11-27 | 成都添益天然气压缩机制造有限公司 | Decompression valve device of lubricating oil supplementing mechanism |
-
2004
- 2004-04-12 CN CN 200420026153 patent/CN2688988Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319493A (en) * | 2011-09-21 | 2012-01-18 | 孙士庆 | Backpack pneumatic extinguisher with V-type double-cylinder two-stroke gasoline engine as power source |
| CN102319493B (en) * | 2011-09-21 | 2013-09-18 | 孙士庆 | Backpack pneumatic extinguisher with V-type double-cylinder two-stroke gasoline engine as power source |
| CN103410707A (en) * | 2013-08-27 | 2013-11-27 | 成都添益天然气压缩机制造有限公司 | Decompression valve device of lubricating oil supplementing mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |