CN111632301B - Forest fire extinguishing device - Google Patents
Forest fire extinguishing device Download PDFInfo
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- CN111632301B CN111632301B CN202010373382.8A CN202010373382A CN111632301B CN 111632301 B CN111632301 B CN 111632301B CN 202010373382 A CN202010373382 A CN 202010373382A CN 111632301 B CN111632301 B CN 111632301B
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- rotating shaft
- conveying belt
- pipe
- output
- fire extinguishing
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/02—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C25/00—Portable extinguishers with power-driven pumps
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C27/00—Fire-fighting land vehicles
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a forest fire extinguishing device which comprises a base, wherein two universal wheels are respectively arranged on two sides of the lower side of the base, a box body is arranged on the base, a first conveying belt is arranged in the box body, the first conveying belt is obliquely arranged, an air suction pipe is arranged on the right side of the first conveying belt, a through hole is formed in the air suction pipe, the right end of the first conveying belt extends into the through hole, a first air suction fan is arranged in the air suction pipe, the left side of the base is connected with a connecting frame, a connecting frame is arranged below the connecting frame, a third rotating shaft is fixedly connected to the connecting frame, a rotating disc is sleeved on the third rotating shaft, a plurality of oblique scraper knives are uniformly arranged on the outer side of the rotating disc, a second conveying belt is arranged between the rotating disc and the first conveying belt, a high-pressure jet machine is arranged below the first conveying belt, a. The invention is convenient for extinguishing the fire of the forest.
Description
Technical Field
The invention relates to the technical field of forest fire extinguishing, in particular to a forest fire extinguishing device.
Background
Forest fire refers to the action of forest fire which loses artificial control, freely spreads and expands in forest lands and brings certain harm and loss to forests, forest ecosystems and human beings. Forest fires are natural disasters which are strong in burst, large in destructiveness and difficult to dispose and rescue.
The existing forest fire extinguishing device has the disadvantages of high labor intensity of workers, life hazard, great labor intensity and inconvenient operation, and the workers still need to manually control and move during operation.
Disclosure of Invention
In view of the above, the present invention is directed to a forest fire extinguishing apparatus that addresses all or one of the problems of the background art.
Based on the above purpose, the invention provides a forest fire extinguishing device, which comprises a base, two universal wheels are respectively arranged on two sides of the bottom of the base, a box body is arranged on the base, first cameras are respectively arranged on the left side, the front side, the rear side and the right side of the box body, the first cameras are movably connected with the side wall of the box body, a first conveying belt is arranged in the box body and is obliquely arranged, the height of the left end of the first conveying belt is lower than that of the right end of the first conveying belt, an air suction pipe is arranged on the right side of the first conveying belt, a through hole is formed in the air suction pipe, the right end of the first conveying belt extends into the through hole, a first air suction machine is arranged in the air suction pipe, a connecting frame is connected on the left side of the base, a connecting frame is arranged below the connecting frame, the rotary disc is sleeved on the third rotary shaft, a plurality of inclined scraper knives are uniformly arranged on the outer side of the rotary disc, a second conveying belt is arranged between the rotary disc and the first conveying belt, a high-pressure injection machine is arranged below the first conveying belt, an outlet of the high-pressure injection machine is communicated with a first output pipe, the end portion of the first output pipe is communicated with a Y-shaped connecting pipe, the Y-shaped connecting pipe comprises an input pipe and two output pipes, the two output pipes of the Y-shaped connecting pipe are respectively communicated with a first pipeline and a second pipeline, a communicating pipe is communicated with the right portion of the first output pipe, and the upper end of the communicating pipe is communicated with the air suction pipe.
Optionally, the two output pipes of the Y-shaped connecting pipe are provided with electromagnetic valves.
Optionally, a rotating plate is arranged in the Y-shaped connecting pipe, the rotating plate is hinged to the side wall of the Y-shaped connecting pipe through a fourth rotating shaft, the fourth rotating shaft is arranged between the two output pipes, and a third motor is connected to the end of the fourth rotating shaft.
The stirring device is characterized in that a plurality of stirring assemblies are arranged on the first conveyor belt, each stirring assembly comprises a stirring shaft, stirring rods are uniformly arranged on the outer side of each stirring shaft, and each stirring shaft is in transmission connection through the conveyor belt.
Optionally, a fourth motor is arranged on one side of the stirring shaft, an output end of the fourth motor is connected with a fourth rotating shaft, and the fourth rotating shaft is in transmission connection with the stirring shaft.
Optionally, a first motor is arranged on the box body, the output end of the first motor is connected with a first rotating shaft, a rotating disc is connected to the first rotating shaft, and a fire extinguisher is detachably connected to the rotating disc.
Optionally, an ejection part is arranged below the fire extinguisher, the ejection part is an elastic spring, a first multi-section telescopic push rod is sleeved outside the elastic spring, one side of the first multi-section telescopic push rod is connected with a second multi-section telescopic push rod arranged in parallel, a traction wire is arranged in the second multi-section telescopic push rod, one end of the traction wire is connected with the fire extinguisher, and the other end of the traction wire is connected with the rotating disc.
Optionally, each universal wheel includes a wheel frame, a first rotating shaft is disposed in the center of the wheel frame, each first rotating shaft is disposed under the base, the first rotating shaft is connected to a driving member, a plurality of rollers are disposed at equal intervals outside each wheel frame, a second rotating shaft penetrates through the middle of each roller, two ends of each second rotating shaft are connected to the wheel frame through inclined support frames, and the inclined support frames are fixedly connected to the wheel frame.
Optionally, each first rotating shaft is sleeved with a first gear, one side of the first gear is meshed with a second gear, one side of each first rotating shaft is provided with a driving motor, and the output end of the driving motor is connected with the second gear.
From the above, the beneficial effects of the invention are:
the device is provided with a first conveyor belt, a high-pressure injection machine rotating disc, a plurality of inclined scraper knives and an air suction pipe, wherein in the moving process of the device, one end of the rotating disc is connected with a shrinkage reduction motor, the rotating disc rotates to enable dust, soil and the like to be moved to a second conveyor belt through the inclined scraper knives in the moving process of a box body, the second conveyor belt facilitates the dust, the soil and the like to be moved to the first conveyor belt and conveyed into a first output pipe, the high-pressure injection machine is started to spray the dust, the soil and the like to a big fire to extinguish the fire, and meanwhile, the first air suction machine sucks soot generated by the fire to further process the soot, so that the soot is convenient to extinguish the fire and discharge the sucked soot into a communicating pipe, and meanwhile, the conveying efficiency of the dust, the soil and the like on the first conveyor belt is.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of an embodiment of a forest fire extinguishing apparatus according to the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
fig. 3 is a schematic structural view of the connection of a first pipeline and a second pipeline of the forest fire extinguishing apparatus according to the embodiment of the invention.
In the figure: the device comprises a base 1, universal wheels 2, a first rotating shaft 3, a wheel frame 4, an inclined support frame 5, a roller 6, a second rotating shaft 7, a box body 8, a first motor 9, a rotating disc 10, a fire extinguisher 11, a first suction fan 12, a second conveyor belt 13, a second suction fan 14, a high-pressure sprayer 15, a connecting frame 16, a second motor 17, a third rotating shaft 18, a rotating disc 19, an inclined scraper knife 20, a first conveyor belt 21, a rotating plate 22, a fourth rotating shaft 24, a first pipeline 25 and a second pipeline 26.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
It is to be noted that technical terms or scientific terms used in the embodiments of the present invention should have the ordinary meanings as understood by those having ordinary skill in the art to which the present disclosure belongs, unless otherwise defined. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
A forest fire extinguishing device comprises a base 1, two universal wheels 2 are respectively arranged on the lower two sides of the base 1, a box body 8 is arranged on the base 1, first cameras are respectively arranged on the left side, the front side, the rear side and the right side of the box body 8, the first cameras are movably connected with the side wall of the box body 8, a first conveying belt 21 is arranged in the box body 8, the first conveying belt 21 is obliquely arranged, the height of the left end of the first conveying belt 21 is lower than that of the right end of the first conveying belt 21, an air suction pipe is arranged on the right side of the first conveying belt 21, a through hole is formed in the air suction pipe, the right end of the first conveying belt 21 extends into the through hole, a first air suction fan 12 is arranged in the air suction pipe, a connecting frame 16 is connected to the left side of the base 1, a connecting frame 16 is arranged below the connecting frame 16, and a, a rotating disc 19 is sleeved on the third rotating shaft 18, a plurality of inclined scrapers 20 are uniformly arranged on the outer side of the rotating disc 19, a second conveying belt 13 is arranged between the rotating disc 19 and the first conveying belt 21, a high-pressure injection machine 15 is arranged below the first conveying belt 21, a first output pipe is communicated with an outlet of the high-pressure injection machine 15, the end part of the first output pipe is communicated with a Y-shaped connecting pipe, the Y-shaped connecting pipe comprises an input pipe and two output pipes, the two output pipes of the Y-shaped connecting pipe are respectively communicated with a first pipeline 25 and a second pipeline 26, a communicating pipe is communicated with the upper part of the right part of the first output pipe, the upper end of the communicating pipe is communicated with the air suction pipe, a controller is arranged in the box body 8 and connected with a terminal, and the controller is connected with a first camera, a first air suction machine 12 and the high-pressure injection, the controller is connected with a temperature detection sensor, a fire extinguishing instruction is sent out at a terminal, the universal wheel 2 drives the box body 8 to run towards a place with a fire, the universal wheel 2 is convenient for driving the box body 8 to move around and can move forwards, backwards, leftwards, rightwards and obliquely, the box body 8 is taken as a circle center, the universal wheel 2 is convenient for driving the box body 8 to move outwards in an emission mode, in the moving process, the rotating disc 19 rotates, one end of the rotating disc 19 is connected with a shrinkage reduction motor, the rotating disc 19 rotates to be convenient for moving dust, soil and the like to the second conveyor belt 13 through the inclined scraper knife 20 in the moving process of the box body, the second conveyor belt 13 is convenient for moving the dust, the soil and the like to the first conveyor belt 21 and conveying the dust, the soil and the like to the first output pipe, the high-pressure injection machine 15 is started to inject the dust, the soil and the like to the fire, the fire is convenient to, be convenient for further handle cigarette ash, the cigarette ash of being convenient for is put out a fire and is handled, will inhale cigarette ash and arrange into communicating pipe, is convenient for improve the transport efficiency of dust, soil etc. on the first conveyer belt 21 simultaneously.
In order to facilitate the spraying of the first pipeline 25 and the second pipeline 26 to the dust, soil and the like, and prevent one of the two pipelines from damaging and affecting the working effect of the device, electromagnetic valves are arranged in two output pipes of the Y-shaped connecting pipe.
In order to facilitate the injection of first pipeline 25 and second pipeline 26 to dust, soil etc. to prevent that one of them harm from influencing the working effect of this device, be provided with rotor plate 22 in the Y type connecting pipe, rotor plate 22 with Y type connecting pipe lateral wall is articulated through fourth axis of rotation 24, fourth axis of rotation 24 sets up two between the output tube, 24 end connection of fourth axis of rotation has the third motor, plugs up one of them in rotor plate 22 with first pipeline 25 and second pipeline 26, and another is convenient for in first pipeline 25 and the second pipeline 26 and is convenient for spray dust, soil etc. and put out a fire and handle.
In order to further improve the collection of dust on the ground, the rotating disc 19 is provided with a second suction fan 14, the input end of the second suction fan 14 points to the ground, the output end of the second suction fan 14 is communicated with a conveying pipe, one end of the conveying pipe is positioned right above the rotating disc 19, and the dust, soil and the like sucked into the conveying pipe can be conveyed to the inclined scraper knife 20 conveniently.
In order to facilitate the stirring of the soil shoveled by the inclined shovel blade 20, a plurality of stirring assemblies are arranged on the first conveyor belt 21, each stirring assembly comprises a stirring shaft, stirring rods are uniformly arranged on the outer side of each stirring shaft, and each stirring shaft is in transmission connection through a conveyor belt.
In order to further improve the stirring efficiency of the shoveled soil, a fourth motor is arranged on one side of the stirring shaft, a fourth rotating shaft is connected to the output end of the fourth motor, and the fourth rotating shaft is in transmission connection with the stirring shaft.
In order to improve the fire extinguishing efficiency and effect, be provided with first motor 9 on the box 8, the output of first motor 9 is connected with first pivot, be connected with rotating disc 10 in the first pivot, can dismantle on rotating disc 10 and be connected with fire extinguisher 11.
In order to facilitate the ejection of the fire extinguisher 11, an ejection piece is arranged below the fire extinguisher 11 and is an elastic spring, a first multi-section telescopic push rod is sleeved outside the elastic spring, one side of the first multi-section telescopic push rod is connected with a second multi-section telescopic push rod arranged in parallel with the first multi-section telescopic push rod, a traction wire is arranged in the second multi-section telescopic push rod, one end of the traction wire is connected with the fire extinguisher 11, and the other end of the traction wire is connected with the rotating disc 10.
The universal wheels 2 are convenient to drive the box body 8 to move around and can move forwards, backwards, leftwards, rightwards and obliquely, the box body 8 is used as a circle center, the universal wheels 2 are convenient to drive the box body 8 to move in an outward emission mode, each universal wheel 2 comprises a wheel frame 4, a first rotating shaft 3 is arranged in the center of each wheel frame 4, each first rotating shaft 3 is arranged below the base 1, a driving piece is connected with each first rotating shaft 3, a plurality of rollers 6 are arranged on the outer side of each wheel frame 4 at equal intervals, a second rotating shaft 7 penetrates through the middle of each roller 6, two ends of each second rotating shaft 7 are connected with the wheel frames 4 through oblique supporting frames 5, and the oblique supporting frames 5 are fixedly connected with the wheel frames 4.
In order to drive the universal wheels 2 conveniently, a first gear is sleeved on each first rotating shaft 3, a second gear is meshed and connected to one side of each first gear, a driving motor is arranged on one side of each first rotating shaft 3, and the output end of each driving motor is connected with the second gear.
The terminal sends a fire extinguishing instruction, the universal wheel 2 drives the box body 8 to run towards the place with fire, the universal wheel 2 is convenient for driving the box body 8 to move around and can move forwards, backwards, leftwards, rightwards and obliquely, the box body 8 is taken as the center of a circle, the universal wheel 2 is convenient for driving the box body 8 to move in an outward emission mode, in the moving process, the rotating disc 19 rotates, one end of the rotating disc 19 is connected with a shrinkage reduction motor, the rotating disc 19 rotates to be convenient for moving dust, soil and the like to the second conveying belt 13 through the inclined scraper knife 20 in the moving process of the box body, the second conveying belt 13 is convenient for moving the dust, soil and the like to the first conveying belt 21 and conveying the dust, soil and the like to the first output pipe, the high-pressure jet machine 15 is started to jet the dust, soil and the like to the fire, so as to extinguish the fire, the first suction machine 12 sucks cigarette ash generated by the fire and, the cigarette ash of being convenient for carries out the treatment of putting out a fire to the conflagration, will inhale in cigarette ash and arrange into communicating pipe, is convenient for improve the transport efficiency of dust, soil etc. on the first conveyer belt 21 simultaneously. Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the spirit of the present disclosure, features from the above embodiments or from different embodiments may also be combined, steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present description as described above, which are not provided in detail for the sake of brevity.
In addition, well-known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown in the provided figures, for simplicity of illustration and discussion, and so as not to obscure one or more embodiments of the disclosure. Furthermore, devices may be shown in block diagram form in order to avoid obscuring the understanding of one or more embodiments of the present description, and this also takes into account the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform within which the one or more embodiments of the present description are to be implemented (i.e., specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the disclosure, it should be apparent to one skilled in the art that one or more embodiments of the disclosure can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative instead of restrictive.
While the present disclosure has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic ram (dram)) may use the discussed embodiments.
It is intended that the one or more embodiments of the present specification embrace all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of one or more embodiments of the present disclosure are intended to be included within the scope of the present disclosure.
Claims (7)
1. A forest fire extinguishing device is characterized by comprising a base (1), two universal wheels (2) are respectively arranged on the lower two sides of the base (1), a box body (8) is arranged on the base (1), first cameras are respectively arranged on the left side, the front side, the rear side and the right side of the box body (8), the first cameras are movably connected with the side wall of the box body (8), a first conveying belt (21) is arranged in the box body (8), the first conveying belt (21) is obliquely arranged, the height of the left end of the first conveying belt (21) is lower than that of the right end of the first conveying belt (21), an air suction pipe is arranged on the right side of the first conveying belt (21), a through hole is formed in the air suction pipe, the right end of the first conveying belt (21) extends into the through hole, a first air suction fan (12) is arranged in the air suction pipe, a connecting frame (16) is connected to the left side of the base, a connecting frame (16) is arranged below the connecting frame (16), a third rotating shaft (18) is fixedly connected to the connecting frame (16), a rotating disc (19) is sleeved on the third rotating shaft (18), a plurality of inclined scraper knives (20) are uniformly arranged on the outer side of the rotating disc (19), a second conveying belt (13) is arranged between the rotating disc (19) and the first conveying belt (21), a high-pressure injection machine (15) is arranged below the first conveying belt (21), a first output pipe is communicated with an outlet of the high-pressure injection machine (15), the end part of the first output pipe is communicated with a Y-shaped connecting pipe, the Y-shaped connecting pipe comprises an input pipe and two output pipes, the two output pipes of the Y-shaped connecting pipe are respectively communicated with a first pipeline (25) and a second pipeline (26), and a communicating pipe is communicated with the right part of the first output pipe, the upper end of the communicating pipe is communicated with the air suction pipe;
the two output pipes of the Y-shaped connecting pipe are internally provided with electromagnetic valves;
be provided with rotor plate (22) in the Y type connecting pipe, rotor plate (22) with Y type connecting pipe lateral wall is articulated through fourth axis of rotation (24), fourth axis of rotation (24) set up two between the output tube, fourth axis of rotation (24) end connection has the third motor.
2. A forest fire extinguishing apparatus as claimed in claim 1, characterised in that a plurality of stirring assemblies are arranged on the first conveyor (21), each stirring assembly comprising a stirring shaft, stirring rods being evenly arranged outside the stirring shaft, each stirring shaft being in driving connection with a conveyor belt.
3. A forest fire extinguishing apparatus as claimed in claim 2, wherein a fourth motor is provided at one side of the stirring shaft, and a fourth rotating shaft is connected to an output end of the fourth motor and is in transmission connection with the stirring shaft.
4. A forest fire extinguishing apparatus as claimed in claim 1, characterised in that the box (8) is provided with a first motor (9), the output of the first motor (9) is connected with a first rotating shaft, the first rotating shaft is connected with a rotating disc (10), and the rotating disc (10) is detachably connected with a fire extinguisher (11).
5. A forest fire extinguishing apparatus as claimed in claim 4, characterized in that an ejector is arranged under the fire extinguisher (11), the ejector is an elastic spring, a first multi-section telescopic push rod is sleeved outside the elastic spring, one side of the first multi-section telescopic push rod is connected with a second multi-section telescopic push rod arranged in parallel with the first multi-section telescopic push rod, a pull wire is arranged in the second multi-section telescopic push rod, one end of the pull wire is connected with the fire extinguisher (11), and the other end of the pull wire is connected with the rotating disc (10).
6. A forest fire extinguishing apparatus according to claim 1, characterized in that each universal wheel (2) comprises a wheel frame (4), a first rotating shaft (3) is arranged at the center of the wheel frame (4), each first rotating shaft (3) is arranged under the base (1), a driving member is connected to the first rotating shaft (3), a plurality of rollers (6) are arranged at equal intervals outside each wheel frame (4), a second rotating shaft (7) penetrates through the middle of each roller (6), both ends of each second rotating shaft (7) are connected with the wheel frame (4) through inclined support frames (5), and the inclined support frames (5) are fixedly connected with the wheel frame (4).
7. A forest fire extinguishing apparatus as claimed in claim 6, characterized in that a first gear is sleeved on each first rotating shaft (3), a second gear is engaged and connected to one side of the first gear, a driving motor is arranged on one side of each first rotating shaft (3), and the output end of the driving motor is connected to the second gear.
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CN202010373382.8A CN111632301B (en) | 2020-05-06 | 2020-05-06 | Forest fire extinguishing device |
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CN202010373382.8A CN111632301B (en) | 2020-05-06 | 2020-05-06 | Forest fire extinguishing device |
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CN111632301A CN111632301A (en) | 2020-09-08 |
CN111632301B true CN111632301B (en) | 2021-06-25 |
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CN202010373382.8A Active CN111632301B (en) | 2020-05-06 | 2020-05-06 | Forest fire extinguishing device |
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Families Citing this family (2)
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CN112386831B (en) * | 2020-10-20 | 2021-10-26 | 苏州帅泽信息科技有限公司 | Forest fire isolation and water retention device |
CN115105776A (en) * | 2022-08-31 | 2022-09-27 | 徐州矿安新材料研究院有限公司 | Energy-saving fire-fighting device and fire-fighting method thereof |
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CN111013063A (en) * | 2019-12-30 | 2020-04-17 | 王德爱 | Crawler-type fire-fighting robot |
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CN1748816A (en) * | 2005-10-25 | 2006-03-22 | 张凤林 | Flame sucking fire extinguishing method and flame sucking fire extinguishing machine |
CN103415327A (en) * | 2010-10-19 | 2013-11-27 | 威尔法尔Hc有限责任公司 | Focused stream, aerated foam projecting nozzle including fixed wand system and method, as well as possibly portable center pointing nozzle |
CN206660375U (en) * | 2017-02-21 | 2017-11-24 | 天津卓诚翮昕实业有限公司 | A kind of multifunctional fire-fighting engineering extinguishing device |
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