CN201279358Y - Powder/liquid wind fire-extinguisher - Google Patents
Powder/liquid wind fire-extinguisher Download PDFInfo
- Publication number
- CN201279358Y CN201279358Y CNU2008201096868U CN200820109686U CN201279358Y CN 201279358 Y CN201279358 Y CN 201279358Y CN U2008201096868 U CNU2008201096868 U CN U2008201096868U CN 200820109686 U CN200820109686 U CN 200820109686U CN 201279358 Y CN201279358 Y CN 201279358Y
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- China
- Prior art keywords
- gear
- powder
- extinguishing agent
- basin
- fire extinguishing
- 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
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- 239000007788 liquid Substances 0.000 title claims abstract description 37
- 239000000843 powder Substances 0.000 title claims abstract description 36
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 49
- 239000007921 spray Substances 0.000 claims description 23
- 238000004401 flow injection analysis Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 description 23
- 238000000889 atomisation Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 125000003003 spiro group Chemical group 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model relates to a powder/liquid wind fire extinguisher, comprising a portable fire extinguisher and a knapsack fire extinguishing powder or fire extinguishing liquid storage tank. The fire extinguisher comprises a shell in which a wind wheel is arranged; the axle of the wind wheel is connected with a power supply on the shell; the shell is provided with an air inlet and an air current jet barrel; and the section of the air current jet barrel in exit direction gradually becomes smaller. The lower part of the storage tank is provided with an extinguishing agent exit which is connected with one end of an extinguishing agent pipe hermetically; a barrel wall at one end of the air current jet barrel near a spout on the portable fire extinguisher is provided with an interface; the other end of the extinguishing agent pipe is inserted into the interface and is fixedly connected with the interface hermetically; and the pipe of the fire extinguisher is provided with a valve for opening or closing the fire extinguisher. The wind fire extinguisher does not leave flakes in the extinguishing process and can put out the fire completely.
Description
Technical Field
The utility model relates to a fire extinguisher, in particular to a powder/liquid pneumatic fire extinguisher.
Background
The existing tools for extinguishing fire in forest and grassland are mostly portable wind-driven fire extinguisher, which is a dry fire extinguisher, and the wind wheel in the fire extinguisher is driven by the engine to rotate to generate airflow to be sprayed out from the airflow outlet of the fire extinguisher to extinguish the fire. The fire extinguisher has the problems that when the fire extinguisher blows out a big fire, splashed sparks are generated at four places, the fire cannot be completely extinguished, other places are possibly ignited, and after the big fire is extinguished by the method, residual ash can be reburnt.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects existing in the prior art and provide a powder/liquid pneumatic extinguisher which can not leave sparks during fire extinguishing and can thoroughly extinguish fire.
The purpose of the utility model can be realized through the following mode:
the utility model provides a powder/liquid pneumatic extinguisher which comprises a portable extinguisher
A casing, wherein a wind wheel is arranged in the casing of the volute-shaped casing part, and the wheel shaft of the wind wheel is connected with a power source; the shell is provided with an air inlet and an air flow injection cylinder, and the section of the air flow injection cylinder is gradually reduced towards the outlet direction;
the portable fire extinguisher has one backpack fire extinguishing powder or liquid storing box, one powder or liquid fire extinguishing agent inlet in the wall of the storing box, one fire extinguishing agent outlet in the lower part of the storing box, one fire extinguishing agent pipe connected hermetically to the outlet, one port in the wall of the air flow jetting cylinder near the nozzle, one fire extinguishing agent pipe inserted from the port to the other end, and one valve to cut off or turn on the fire extinguishing agent pipe.
The structure of the airflow jet cylinder with the fire extinguishing agent conduit inserted on the portable fire extinguisher can be as follows: the end of the fire extinguishing agent conduit inserted into the airflow jet cylinder is provided with a jet device, and the jet device comprises a jet basin gradually expanding towards the end, and the jet basin is fixedly connected to the end of the fire extinguishing agent conduit. The sprayer can further comprise a threaded pipe, the spraying basin is in threaded connection with one end of the threaded pipe, the other end of the threaded pipe is connected with one end of a Z-shaped connecting pipe through threads, the other end of the Z-shaped connecting pipe is connected to the fire extinguishing agent guide pipe, and the Z-shaped connecting pipe penetrates through the wall of the airflow spraying cylinder.
A baffle plate can be fixedly arranged in the spray basin, and an annular gap is arranged between the outer edge of the baffle plate and the basin wall of the spray basin. The fixing structure of the baffle and the spray basin is as follows: the basin body of the spray basin is fixedly provided with a threaded shaft, the baffle plate is provided with a center hole, the baffle plate is arranged on the threaded shaft in a penetrating way through the center hole, and the threaded shaft is screwed with a nut so that the baffle plate is fixed on the threaded shaft.
A fan may be fixedly disposed in front of the outlet of the spray tub such that the fan rotates when the air flow generated by the wind wheel passes around the spray tub. The fixed knot of leaf fan constructs does: the utility model discloses a fire extinguishing agent spraying basin, including the basin body of spraying basin, this leaf fan sets firmly a screw shaft on the basin body, and this leaf fan overlaps through the centre bore cover on it and establishes on the screw shaft, and the spiro union nut is fixed to this leaf fan axial on the screw shaft for the leaf fan rotationally fixes on the screw shaft, and it is outdated to have the air current to flow in the air current spraying section of thick bamboo, can promote this leaf fan and rotate, and makes when the fire extinguishing agent flows out from spraying the basin, by the leaf fan dispersion.
It can also be that the preceding separation blade and a leaf fan that sets up of export of spraying the basin, its fixed knot constructs and does a threaded shaft sets firmly on the sneeze of spraying the basin, be equipped with a centre bore on the baffle, wear to establish on this threaded shaft through this centre bore with the baffle, the leaf fan is established on the threaded shaft through centre bore above that also cover, the baffle is located in the spraying basin, its outer fringe and spray and be equipped with an annular gap between the basin inner wall, the leaf fan rotationally set firmly in spraying basin port department, a spiro union nut is fixed a position this baffle and leaf fan on the threaded shaft. When the fire extinguishing agent flows out from the fire extinguishing agent conduit, the fire extinguishing agent flows out from the annular gap between the spraying basin and the baffle plate, is dispersed by the fan blades, is mixed with air and atomized, and finally is sprayed out from the airflow spraying cylinder.
The outer edge of the port of the spray basin can be provided with a plurality of gaps.
A speed change mechanism can be arranged between the portable fire extinguisher engine and the wind wheel.
The speed change mechanism may be: the output shaft of the engine is connected with a driving gear, two driven shafts are arranged on the shell, a gear is fixedly arranged on the driven shaft a, a gear is arranged on the driven shaft b in a sliding manner, the two gears are both meshed with the driving gear, and a shifting fork is arranged on the gear capable of sliding, so that the shifting fork arranged on the gear can move up on the driven shaft to be separated from the meshing with the driving gear; the driven shaft a is provided with another gear in a sliding way, the driven shaft b is fixedly provided with another gear, the shaft c where the wind wheel is arranged is fixedly provided with a gear, one side of the gear is meshed with the sliding gear on the driven shaft a through two intermediate gears, the other side of the gear is meshed with the fixed gear on the driven shaft a, and the two sliding gears are provided with shifting forks so as to move on the driven shaft through the shifting forks to be disengaged from or disengaged from the gears meshed with the shifting forks.
The utility model provides a powder/liquid pneumatic extinguisher owing to can spout likepowder or liquid fire extinguishing agent when blowing to put out a fire, the big fire of not blowing out also goes out mars, stops the ash of dying to reburn, consequently, this extinguisher compares the fire control effect better, efficiency is higher with current similar extinguisher.
Drawings
The present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of a powder/liquid pneumatic extinguisher provided by the present invention;
FIG. 2 is a schematic structural view of a portable fire extinguisher in a powder/liquid pneumatic fire extinguisher according to the present invention;
figure 3 is a schematic left side view of the portable fire extinguisher of figure 2;
figure 4 is a schematic rear view of the portable fire extinguisher of figure 2;
figure 5 is a schematic cross-sectional view of the portable fire extinguisher of figure 2;
FIG. 5a is an enlarged schematic view of part A of FIG. 5, showing the configuration of an ejector in a powder/liquid pneumatic fire extinguisher, in which a fire extinguishing agent conduit connected to a backpack fire extinguishing powder or fire extinguishing liquid storage tank is connected to one end of an air flow jet cylinder of a portable fire extinguisher;
FIG. 6 is a front view of the baffle plate of the injector shown in FIG. 5;
FIG. 7 is a front view of the fan of the ejector shown in FIG. 5;
FIG. 8 is a front view of the spray bowl of the sprayer of FIG. 5;
FIG. 9 is an exploded view of the injector shown in FIG. 5;
FIGS. 9a, 9b, 9c, 9d are schematic views of three other configurations of the ejector;
FIGS. 10a, 10b, 10c, 10d are schematic views of four configurations of the impeller blades in the hand held fire extinguisher;
figure 11a is a schematic side view of a speed change mechanism disposed between a power source and a wind wheel in the portable fire extinguisher;
11B, 11c are the A-A cross-sectional structure diagram and the B-B cross-sectional structure diagram of FIG. 11 a.
Detailed Description
As shown in fig. 1, the utility model provides a powder/liquid pneumatic fire extinguisher, which comprises a portable fire extinguisher 1 and a backpack fire extinguishing powder or fire extinguishing liquid storage tank 2.
As shown in fig. 1 to 5, the portable fire extinguisher 1 includes a casing 101 in which a wind wheel 102 is provided in a casing of a scroll-shaped casing portion, i.e., an airflow generation chamber 100, and a wheel shaft of the wind wheel 102 is connected to a power source, i.e., a gasoline engine 103 (see fig. 3); the casing 101 is provided with an air inlet and an air flow injection cylinder 104, and the section of the air flow injection cylinder is gradually reduced towards the outlet direction;
as shown in FIG. 1, a backpack fire extinguishing powder or fire extinguishing liquid storage tank 2 is provided with a harness 200 for an operator to carry on his back. The wall of the box body is provided with a powder or liquid fire extinguishing agent loading port 201, the lower part of the box body is provided with a fire extinguishing agent outlet 202, one end of a fire extinguishing agent conduit 3 is hermetically and fixedly connected with the outlet, the wall of the air flow spraying cylinder 104 on the portable fire extinguisher 1, which is close to one end of a nozzle, is provided with a port 108, the other end of the fire extinguishing agent conduit 3 is inserted into the air flow spraying cylinder 104 through the port 108, and the fire extinguishing agent conduit 3 is provided with a valve 300 for stopping or conducting the fire extinguishing agent conduit.
As shown in fig. 3, 11a, 11b and 11c, the portable fire extinguisher is provided with a speed change mechanism 105 from the engine 103 to the wind wheel 102, which may have different rotation speeds when the engine 103 outputs the same rotation speed. Compared with the prior art, the structure has the advantages that the speed regulation is convenient, the speed change range is large, and the output power of the engine cannot be influenced by speed change by changing the throttle adjustment of the engine through the rotation of the wind wheel. A specific shifting mechanism may be as shown in fig. 11: the output shaft of the engine 103 is connected with a driving gear 01, two driven shafts are additionally arranged, a gear 02 is fixedly arranged on the driven shaft a, a gear 03 is slidably arranged on the driven shaft b, the gears 02 and 03 are both meshed with the driving gear 01, and the gear 03 can be separated from the meshing with the gear 01 by moving on the driven shaft b along an arrow shown in the figure through a shifting fork 106 (shown in figure 3) arranged on the gear 03. The driven shaft a is provided with another gear 04a in a sliding way, the driven shaft b is fixedly provided with another gear 04, the shaft c of the wind wheel 102 is fixedly provided with a gear 05 which is meshed with the gear 04, the gear 04a is meshed with the gear 5 through the gears 06 and 06a which are meshed with each other, and the gear 04a moves on the driven shaft a along the arrow shown in the figure through a shifting fork 107 (see figure 3) arranged on the gear 04a and can be disengaged from the gear 05. In this way, the rotor can obtain two speeds that are the same in turning: the method comprises the following steps: the gear 01 is meshed with the gear 02, the gear 02 drives the gear 04a to rotate through the driven shaft a, the gear 04a is meshed with the gear 06a and the gear 06a is meshed with the gear 06, the gear 06 is meshed with the gear 05 again, then the shaft c drives the wind wheel to rotate, and at the moment, the gear 03 is disengaged from the gear 01. The second is as follows: the gear 01 is meshed with the gear 03, the gear 03 drives the gear 04 to rotate through the driven shaft b, the gear 04 is meshed with the gear 05, then the wind wheel is driven to rotate through the shaft c, and at the moment, the gear 04a is disengaged from the gear 05.
As shown in fig. 10a, 10b, 10c, 10d, fig. 10c shows the shape of the blades in four wind wheels, fig. 10c shows the shape of the blades in the wind wheel of the wind power fire extinguisher in the prior art, on which a shorter arc-shaped blade 102-1 is uniformly distributed, in order to increase the wind pressure of the wind wheel, a longer back hook type blade 102-2 can be added on the wind wheel, which can be uniformly distributed on the wind wheel at intervals with the original arc-shaped blades, as shown in fig. 10a, or can be separately and uniformly distributed on the wind wheel, as shown in fig. 10 b. Still another improvement is to lengthen the shorter curved blades 102-1 and change it to a wind wheel with the longer curved blades 102-3 evenly distributed, as shown in fig. 10 d.
The structure of the air flow injection cylinder 104 in which the fire extinguishing agent conduit 3 is inserted in the portable fire extinguisher 1 may be: as shown in fig. 9a, the end of the fire extinguishing agent conduit 3 is connected to one end of a Z-shaped adapter 31, the other end of the Z-shaped adapter 31 is inserted into the air flow injection cylinder 104 through a connector 108, and an ejector 30 is connected to the end of the Z-shaped adapter 31 of the fire extinguishing agent conduit 3 inserted into the air flow injection cylinder, the ejector 30 including a spray basin 301 which is gradually expanded toward the port and is fixed to a threaded pipe, and is connected to the port of the Z-shaped adapter 31 through threads formed thereon. The outer edge of the port of the spray bowl 301 has a plurality of notches 301 a.
The fire extinguishing agent sucked out of the reserve tank 2 by the air flow flowing through the air flow jet cylinder 104 under the negative pressure generated at the basin mouth of the jet basin 301 can be well dispersed, and a good fire extinguishing effect can be obtained.
Further, in order to make the fire extinguishing agent be mixed with the air flow more sufficiently and the atomization better, a baffle 302 may be added on the above-mentioned spraying basin 301, a threaded shaft 303 is fixedly arranged on the basin body of the spraying basin 301, the baffle 302 is provided with a central hole, the baffle is arranged on the shaft 303 through the central hole, and then the baffle is fixed on the shaft 303 through a nut 304, as shown in fig. 9b, the baffle is arranged in the spraying basin, and an annular gap is arranged between the outer edge of the baffle and the basin wall of the spraying basin.
In order to obtain better atomization effect of the fire extinguishing agent, a fan 305 may be further disposed in front of the outlet of the spraying basin 301, and similarly, a threaded shaft 303 is fixedly disposed on the basin body of the spraying basin, the fan 305 is sleeved on the threaded shaft through a central hole thereon, and is axially fixed by a nut 304, so that the fan is rotatably fixed on the threaded shaft, as shown in fig. 9 c. The fan can be driven to rotate by the airflow in the airflow jet cylinder. When the fire extinguishing agent flows out of the spraying basin, the fire extinguishing agent can be dispersed by the rotating blade fan, and the blade fan is added to carry out more sufficient atomization and dispersion on the fire extinguishing agent powder or liquid.
Furthermore, it is also possible to provide baffles 302 in the spray basin 301 and to provide a fan 305 in front of the outlet of the spray basin 301, as shown in fig. 5a and 9d, in order to achieve an optimal dispersion atomization.
The powder/liquid pneumatic extinguisher works as follows: when the engine of the fire extinguisher is started, the output shaft of the engine drives the wind wheel in the airflow generating chamber to rotate through the speed change mechanism to generate flowing airflow, when the flowing airflow passes through the spraying cylinder, negative pressure is formed at the end of the fire extinguishing agent conduit inserted in the spraying cylinder, the valve on the fire extinguishing agent conduit is opened, so that the powder or liquid fire extinguishing agent in the backpack fire extinguishing powder or fire extinguishing liquid storage tank can be sucked out, the powder or liquid fire extinguishing agent is sprayed out from the sprayer arranged at the outlet of the fire extinguishing agent conduit and is mixed with the flowing airflow to be sprayed to a fire source, the mixture can effectively suppress splashed sparks, and a layer of fire extinguishing powder or fire extinguishing liquid is covered on residual ash after a big fire is extinguished to prevent the dead ash from reburning.
As shown in FIG. 2, a handle 109 and a bracket 109a are provided on the cabinet of the wind fire extinguisher.
Claims (10)
1. A powder/liquid pneumatic extinguisher is characterized by comprising
A portable fire extinguisher comprising a housing in which a wind wheel is provided in the housing of a volute-shaped housing section, the wheel shaft of the wind wheel being connected to a power source provided on the housing; the shell is provided with an air inlet and an airflow jet cylinder, and the section of the airflow jet cylinder is gradually reduced towards the outlet direction;
the portable fire extinguisher has one backpack fire extinguishing powder or liquid storing box, one powder or liquid fire extinguishing agent inlet in the wall of the storing box, one fire extinguishing agent outlet in the lower part of the storing box, one fire extinguishing agent pipe connected hermetically to the outlet, one port in the wall of the air flow jetting cylinder near the nozzle, one fire extinguishing agent pipe inserted from the port to the other end, and one valve to cut off or turn on the fire extinguishing agent pipe.
2. The powder/liquid pneumatic extinguisher according to claim 1, wherein the structure of the air flow injection cylinder in which the extinguishing agent conduit is inserted on the portable extinguisher is: the end of the fire extinguishing agent conduit inserted into the airflow jet cylinder is provided with a jet device, and the jet device comprises a jet basin gradually expanding towards the end, and the jet basin is fixedly connected to the end of the fire extinguishing agent conduit.
3. The pneumatic powder/liquid fire extinguisher according to claim 2, wherein the injector further includes a threaded pipe, the spray bowl is screwed to one end of the threaded pipe, the other end of the threaded pipe is screwed to one end of a Z-shaped adapter pipe, the other end of the Z-shaped adapter pipe is connected to the fire extinguishing agent guide pipe, and the Z-shaped adapter pipe is inserted into the wall of the air flow injection cylinder.
4. A powder/liquid pneumatic extinguisher as claimed in claim 2 or 3, characterized in that a baffle is fixed in the spray basin, and an annular gap is provided between the outer edge of the baffle and the basin wall of the spray basin.
5. A powder/liquid pneumatic extinguisher according to claim 2 or 4, wherein a fan is fixed to the front of the outlet of the spray basin so as to be rotated when the air flows through the air flow spray cylinder and dispersed by the fan when the fire extinguishing agent flows out of the spray basin; and/or the presence of a gas in the gas,
the outer edge of the port of the spray basin is provided with a plurality of gaps.
6. Powder/liquid pneumatic extinguisher according to claim 4, characterized in that the fixing structure of the baffle plate to the spray basin is: the basin body of the spray basin is fixedly provided with a threaded shaft, the baffle is provided with a center hole, the baffle is arranged on the threaded shaft in a penetrating way through the center hole, and the baffle is fixed on the threaded shaft through a nut.
7. Powder/liquid pneumatic extinguisher according to claim 5, characterized in that the fixed structure of the fan is: the basin body of the spray basin is fixedly provided with a threaded shaft, the leaf fan is sleeved on the threaded shaft through a central hole on the leaf fan, and the leaf fan is axially fixed through a nut, so that the leaf fan can be rotationally fixed on the threaded shaft.
8. Powder/liquid fire extinguisher according to claim 1, characterized in that a gear change mechanism is provided between the portable extinguisher engine and the wind wheel.
9. Powder/liquid pneumatic extinguisher according to claim 1, characterized in that said speed change mechanism is: the output shaft of the engine is connected with a driving gear, two driven shafts are arranged on the shell, a gear is fixedly arranged on the driven shaft a, a gear is arranged on the driven shaft b in a sliding manner, the two gears are both meshed with the driving gear, and a shifting fork is arranged on the gear capable of sliding, so that the shifting fork arranged on the gear can move up on the driven shaft to be separated from the meshing with the driving gear; the driven shaft a is provided with another gear in a sliding way, the driven shaft b is fixedly provided with another gear, the shaft c where the wind wheel is arranged is fixedly provided with a gear, one side of the gear is meshed with the sliding gear on the driven shaft a through two intermediate gears, the other side of the gear is meshed with the fixed gear on the driven shaft a, and the two sliding gears are provided with shifting forks so as to move on the driven shaft through the shifting forks to be disengaged from or disengaged from the gears meshed with the shifting forks.
10. Powder/liquid pneumatic extinguisher according to claim 1,
the blades on the wind wheel are longer back-hook type blades (102-2) inserted between shorter arc-shaped blades (102-1), and the blades (102-2) and the arc-shaped blades (102-1) are uniformly distributed on the wind wheel at intervals; or,
the blades on the wind wheel are long return hook type blades (102-2) which are independently and uniformly distributed on the wind wheel; or,
the blades on the wind wheel are uniformly distributed on the wind wheel with the arc-shaped blades (102-3) which are lengthened by the shorter arc-shaped blades (102-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201096868U CN201279358Y (en) | 2008-08-07 | 2008-08-07 | Powder/liquid wind fire-extinguisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201096868U CN201279358Y (en) | 2008-08-07 | 2008-08-07 | Powder/liquid wind fire-extinguisher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201279358Y true CN201279358Y (en) | 2009-07-29 |
Family
ID=40926246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201096868U Expired - Fee Related CN201279358Y (en) | 2008-08-07 | 2008-08-07 | Powder/liquid wind fire-extinguisher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201279358Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850165A (en) * | 2010-05-21 | 2010-10-06 | 南京林业大学 | Multi-function jet wind fire-extinguisher |
| CN102526916A (en) * | 2012-01-12 | 2012-07-04 | 中国农业大学 | Portable wind powder fire extinguisher |
| CN106669069A (en) * | 2015-11-09 | 2017-05-17 | 中国人民解放军军械工程学院 | Embedded gas-liquid supply tank |
| CN112494857A (en) * | 2020-12-08 | 2021-03-16 | 台州金斯顿机械科技有限公司 | Wind-water fire extinguisher |
-
2008
- 2008-08-07 CN CNU2008201096868U patent/CN201279358Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850165A (en) * | 2010-05-21 | 2010-10-06 | 南京林业大学 | Multi-function jet wind fire-extinguisher |
| CN102526916A (en) * | 2012-01-12 | 2012-07-04 | 中国农业大学 | Portable wind powder fire extinguisher |
| CN106669069A (en) * | 2015-11-09 | 2017-05-17 | 中国人民解放军军械工程学院 | Embedded gas-liquid supply tank |
| CN112494857A (en) * | 2020-12-08 | 2021-03-16 | 台州金斯顿机械科技有限公司 | Wind-water fire extinguisher |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090729 Termination date: 20100807 |