CN111494854A - Smoke prevention and fire extinguishing device for fire fighting - Google Patents
Smoke prevention and fire extinguishing device for fire fighting Download PDFInfo
- Publication number
- CN111494854A CN111494854A CN202010379172.XA CN202010379172A CN111494854A CN 111494854 A CN111494854 A CN 111494854A CN 202010379172 A CN202010379172 A CN 202010379172A CN 111494854 A CN111494854 A CN 111494854A
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- fire extinguishing
- smoke
- fire
- water tank
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/03—Nozzles specially adapted for fire-extinguishing adjustable, e.g. from spray to jet or vice versa
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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
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/05—Nozzles specially adapted for fire-extinguishing with two or more outlets
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention relates to the technical field of fire control, and particularly discloses a smoke prevention and fire extinguishing device for fire control, which comprises a bottom plate and an expansion link, wherein a water tank is fixedly installed on the bottom plate, the top of the water tank is connected with the expansion link and a connecting rod through a rotating shaft, the air inlet end of an air pump is communicated with an air hose, the bottom of the water tank is communicated with a water hose, the water hose and the air hose penetrate through the hollow connecting rod and the expansion link and are communicated with a smoke prevention and fire extinguishing cover arranged at the end part of the expansion link, the inside of the side wall of the smoke prevention and fire extinguishing cover is hollow and is communicated with a liquid spraying nozzle arranged inside the smoke prevention and fire extinguishing cover, the smoke prevention and; the driving piece is fixedly arranged at the top of the water tank below the connecting rod and connected with the rotating wheel, and the rotating wheel is provided with the nesting roller and is nested in the nesting groove on the lower surface of the connecting rod. The invention has the advantages that: simple structure, wide fire extinguishing range, strong applicability, good fire extinguishing and smoke eliminating effect and convenient popularization and implementation.
Description
Technical Field
The invention relates to the technical field of fire control, in particular to a smoke prevention and fire extinguishing device for fire control.
Background
Fire fighting, namely elimination and prevention, is a general term for preventing and solving human, natural and accidental disasters in the life, work and learning processes of people, and certainly the narrow meaning in the early stage of people understanding is: the meaning of extinguishing a fire. After fire disaster occurs, dense smoke is generated, the smoke is stopped immediately when encountering the dense smoke, and a million people do not try to come out from smoke and fire and climb in the dense smoke in a low posture. Since a large amount of smoke generated in a fire floats on the upper layer due to the rising of hot air, air should be present in a place 30 cm or less from the ground in the fire, and thus the smoke creeps in a low posture as much as possible and the head of the smoke approaches the ground as much as possible. People escape from the dense smoke, if the protection is not proper, the dense smoke is easily inhaled into the body, so that the faint or suffocation is caused, and simultaneously, the eyes can be stabbed and cannot be opened due to the stimulation of the smoke. However, the high quality activated carbon is an activated carbon having a strong adsorption ability, and the activated carbon having a strong adsorption ability must have many pores in order to easily absorb harmful substances in the air.
The prior patent discloses a smoke prevention and fire extinguishing device for fire fighting. The device comprises a cart, a first hose, a water tank, a filter box, activated carbon, an air suction pump, a smoking pipe, a second hose, a first fixing ring, a first smoking pipe, a second fixing ring, a swinging rod, a gear, a rack, a supporting rod, a third fixing ring, a nozzle, a lifting rod, a guide plate, a spring, a baffle, a contact roller, a left support, a fixing frame, a motor, a cam, a water pipe, a right support and a water pump. The device can not simultaneously eliminate smoke and extinguish fire at the same point, and a large amount of smoke generated in the fire extinguishing process is easy to cause pollution.
Disclosure of Invention
The invention aims to provide a smoke prevention and fire extinguishing device for fire fighting, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the embodiment of the invention is realized in such a way that the smoke prevention and fire extinguishing device for fire fighting comprises:
the fire extinguishing device comprises a base plate, a water tank and a water tank, wherein the upper surface of the base plate is fixedly provided with the water tank, and the water tank is used for containing water or medicament for extinguishing fire;
the air pump is used for driving air to flow;
the smoke-eliminating fire-extinguishing cover is used for spraying water or medicament for fire extinguishing and absorbing generated smoke;
wherein, the top of water tank is rotated and is provided with the axis of rotation, the both ends lateral wall fixedly connected with telescopic link and the connecting rod of axis of rotation, the inlet end intercommunication of air pump has the air hose, the air pump is given vent to anger the end and is stretched into the bottom in the water tank through the pipeline, the bottom intercommunication of water tank has the water hose, the air hose passes hollow connecting rod and telescopic link and feeds through the smoke prevention and fire extinguishing cover that sets up at the tip of telescopic link, the inside cavity that sets up to the cavity of the lateral wall of smoke prevention and fire extinguishing cover and with set up at the inside hydrojet mouth intercommunication of smoke prevention and fire extinguishing cover, smoke prevention and fire extinguishing. Under the effect of the air pump, the air below the smoke prevention and fire extinguishing cover carries smoke gas to enter the inside of the smoke prevention and fire extinguishing cover and enter the inside of the air injection plate through the air hose, the air holes in the air injection plate spray the water or the medicament, the water or the medicament adsorbs the smoke dust, the water tank is made to be in positive pressure, the water or the medicament enters the inside of the cavity of the side wall of the smoke prevention and fire extinguishing cover through the water hose, and finally the water or the medicament is sprayed downwards from the liquid spraying nozzle, so that fire is extinguished, and the fire extinguishing efficiency is improved.
The below of connecting rod has the driving piece at the top fixed mounting of water tank, the output shaft fixedly connected with of driving piece rotates the wheel, the upper surface radial position that rotates the wheel rotates and is provided with nested roller, nested groove has been seted up to the lower surface of connecting rod, nested roller nestification is in the inside in nested groove, start the driving piece, the driving piece drives and rotates the wheel rotation, thereby make nested roller slide at nested inslot portion, with this can control the telescopic link and rotate at certain extent, with this completion smoke abatement fire extinguishing cover and do fan-shaped within range scanning, can go forward the scope and put out a fire comprehensively, also can adjust telescopic link turned angle, the fixed point is put out a fire, the application ability of device has been improved. Air pump, driving piece and biax motor electric connection have the controller, can control the switch of air pump, the switch and the slew velocity of driving piece, the switch and the direction of rotation of biax motor through the controller.
As a further aspect of the preferred embodiment of the present invention: the bottom of bottom plate is rotated and is provided with drive wheel and universal wheel, and the drive wheel is connected with drive arrangement, reduces the manpower and promotes, is provided with the cardboard on the universal wheel, and the cardboard has the braking action to the universal wheel, and the setting of drive wheel and universal wheel is convenient for remove, turn to and fix.
As a further aspect of the preferred embodiment of the present invention: the observation window has been seted up to the lateral wall of water tank, and the setting of observation window is convenient for observe the volume and the state of the inside water of water tank, is convenient for in time add.
As a further aspect of the preferred embodiment of the present invention: the smoke prevention and fire extinguishing cover is of a funnel-shaped structure with a downward opening, so that smoke can enter conveniently.
As a further aspect of the preferred embodiment of the present invention: the air pump communicates the jet plate that sets up bottom in the water tank, has seted up a plurality of bleeder vents on the jet plate and communicates with the air pump, and the setting of jet plate has increased gas-liquid area of contact, has improved the absorption efficiency of flue gas.
As a further aspect of the preferred embodiment of the present invention: the telescopic link is including the installation cover, double-shaft motor and flexible pipe, and the installation is overlapped inside for hollow structure and fixed mounting has double-shaft motor, and the inside axis of rotation of double-shaft motor is hollow structure, and the hollow lead screw of intercommunication of symmetry, and the slip nestification of the both ends symmetry of installation cover has flexible cover, and lead screw thread nestification is in the inside of flexible cover, starts double-shaft motor, makes the lead screw rotate to the flexible cover of drive is flexible in the inside of installation cover, and is flexible with this drive telescopic link. The water hose and the air hose penetrate through the output shaft of the double-shaft motor and the screw rod,
as a further aspect of the preferred embodiment of the present invention: the outer surface of the water hose and the air hose is wrapped by the telescopic pipes, the water hose and the air hose are prevented from being abraded due to the arrangement of the telescopic pipes, and air leakage and liquid leakage are avoided.
As a further aspect of the preferred embodiment of the present invention: the cavities in the telescopic sleeve and the double-shaft motor are both of polygon prism structures, so that the relative rotation of the telescopic sleeve and the mounting sleeve is avoided.
As a further aspect of the preferred embodiment of the present invention: the upper surface of the rotating wheel is provided with a radial position which is provided with a sliding groove, a bolt is arranged in the sliding groove in a rotating mode, the sliding seat is nested in the sliding groove in a sliding mode, the bolt threads penetrate through the sliding seat, the nesting roller is rotatably connected to the upper surface of the sliding seat, the distance between the sliding seat and the circle center position can be adjusted by screwing the bolt, the rotating radius of the nesting roller is determined, the rotating fan-shaped angle of the telescopic rod is adjusted, and the range of fire extinguishing and smoke eliminating of the smoke-eliminating and fire-extinguishing cover is adjusted.
Compared with the prior art, the invention has the beneficial effects that: move this device to the scene of a fire, adjust telescopic link length, start the biax motor, make the lead screw rotate to the flexible cover of drive is flexible in the inside of installation cover, and is flexible with this drive telescopic link. Place the smoke prevention and fire extinguishing cover in the flame top, start the air pump, under the effect of air pump, smoke prevention and fire extinguishing cover below air carries the flue gas to enter into the inside of smoke prevention and fire extinguishing cover and enters into the inside of jet-propelled board through the air hose, spout the inside of water or medicament from the bleeder vent on the jet-propelled board, water or medicament adsorb the smoke and dust, and make the inside malleation of thinking of water tank, water or medicament enter into the inside of smoke prevention and fire extinguishing cover lateral wall cavity through the water hose, spout from hydrojet nozzle downwards at last, thereby put out a fire, the efficiency of putting out a fire has been improved. Can simultaneously extinguish fire and eliminate smoke for a designated point, and avoids air pollution caused by smoke leakage. The driving piece is started, the driving piece drives the rotating wheel to rotate, so that the nesting roller slides in the nesting groove, the telescopic rod can be controlled to rotate within a certain range, the smoke abatement fire extinguishing cover is scanned within a fan-shaped range, and the advancing range can be comprehensively extinguished. The invention has the advantages that: simple structure, wide fire extinguishing range, strong applicability, good fire extinguishing and smoke eliminating effect and convenient popularization and implementation.
Drawings
FIG. 1 is a schematic perspective view of a smoke abatement fire extinguisher for fire fighting.
FIG. 2 is a schematic view of the internal structure of a smoke abatement fire extinguishing apparatus for fire fighting.
FIG. 3 is a schematic view of a rotary wheel of the smoke abatement fire extinguisher for fire fighting.
In the figure, a bottom plate 1, a water tank 2, an air pump 3, a water hose 4, an air hose 5, a motor 6, a rotating wheel 7, a connecting rod 8, a telescopic rod 9, a smoke abatement fire extinguishing cover 10, a driving wheel 11, an observation window 12, a universal wheel 13, an air spraying plate 14, a nesting groove 15, a nesting roller 16, a telescopic pipe 17, a telescopic sleeve 18, a screw rod 19, an installation sleeve 20, a double-shaft motor 21, a liquid spraying nozzle 22, a sliding groove 23, a bolt 24 and a sliding seat 25.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments, and it is obvious that the described embodiments are some embodiments, but not all embodiments, of the present invention; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In order to more clearly understand the technical features, objects, and effects of the present invention, the present invention will now be described with reference to the accompanying drawings.
Example 1
Referring to fig. 1-2, a smoke suppression and fire extinguishing apparatus for fire fighting includes:
the fire extinguishing water tank comprises a bottom plate 1, wherein a water tank 2 is fixedly arranged on the upper surface of the bottom plate 1, and the water tank 2 is used for containing water or medicament for fire extinguishing;
an air pump 3 for driving air flow;
the smoke prevention and fire extinguishing cover 10 is used for spraying water or medicament for fire extinguishing and absorbing generated smoke;
wherein, the upper surface fixed mounting of bottom plate 1 has water tank 2, and the inside of water tank 2 is used for holding the water or the medicament of putting out a fire. The top of water tank 2 is rotated and is provided with the axis of rotation, the both ends lateral wall fixedly connected with telescopic link 9 and the connecting rod 8 of axis of rotation, the inlet end intercommunication of air pump 3 has air hose 5, air pump 3 gives vent to anger the end and stretches into 2 insides of water tank through the pipeline, the bottom intercommunication of water tank 2 has water hose 4, air hose 5 passes hollow connecting rod 8 and telescopic link 9 and communicates the smoke prevention and fire extinguishing cover 10 that sets up at the tip of telescopic link 9, the inside cavity that sets up to the cavity of smoke prevention and fire extinguishing cover 10 and with set up at the inside hydrojet mouth 22 intercommunication of smoke prevention and fire extinguishing cover 10, smoke prevention and fire extinguishing cover 10 and air hose 5 intercommunication, the inside cavity of smoke prevention and fire. Under the effect of air pump 3, the inside that smoke and gas carried the inside that the smoke and gas fire extinguishing cover 10 got into smoke and gas spraying plate 14 was gone into through air hose 5 to the air below smoke and gas fire extinguishing cover 10, spout the inside of water or medicament from the bleeder vent on the gas spraying plate 14, water or medicament adsorb the smoke and dust, and make the inside malleation of thinking of water tank 2, water or medicament enter into the inside of smoke and gas fire extinguishing cover 10 lateral wall cavity through water hose 4, spout from hydrojet 22 downwards at last, thereby put out a fire, the efficiency of putting out a fire has been improved.
The below of connecting rod 8 has the driving piece at the top fixed mounting of water tank 2, the driving piece can be motor 6, fuel engine etc., the output shaft fixedly connected with of driving piece rotates wheel 7, the upper surface radial position that rotates wheel 7 rotates and is provided with nested roller 16, nested groove 15 has been seted up to the lower surface of connecting rod 8, nested roller 16 nests in the inside of nested groove 15, start the driving piece, the driving piece drives and rotates wheel 7 and rotate, thereby make nested roller 16 slide in nested groove 15 is inside, with this can control telescopic link 9 and rotate at certain extent, accomplish the smoke abatement and put out a fire cover 10 with this and do fan-shaped within range scanning, can go forward the scope and put out a fire comprehensively, also can adjust telescopic link 9 turned angle, the fixed point is put out a fire, the application ability of device has been improved. The air pump 3, the driving member and the double-shaft motor 21 are electrically connected with a controller, and the switch of the air pump 3, the switch and the rotating speed of the driving member, and the switch and the rotating direction of the double-shaft motor 21 can be controlled through the controller.
In the embodiment of the invention, the device is moved to a fire scene, the length of the telescopic rod 9 is adjusted, the double-shaft motor 21 is started, the screw rod 19 is rotated, the telescopic sleeve 18 is driven to be telescopic in the installation sleeve 20, and the telescopic rod 9 is driven to be telescopic. Place smoke prevention and fire extinguishing cover 10 in the flame top, start air pump 3, under the effect of air pump 3, smoke prevention and fire extinguishing cover 10 below air carries the flue gas to enter into smoke prevention and fire extinguishing cover 10's inside and enter into the inside of jet-propelled board 14 through air hose 5, spout the inside of water or medicament from the bleeder vent on the jet-propelled board 14, water or medicament adsorb the smoke and dust, and make 2 inside positive pressure that think into of water tank, water or medicament enter into the inside of smoke prevention and fire extinguishing cover 10 lateral wall cavity through water hose 4, spout from hydrojet 22 downwards at last, thereby put out a fire, the efficiency of putting out a fire has been improved. Can simultaneously extinguish fire and eliminate smoke for a designated point, and avoids air pollution caused by smoke leakage. The driving piece is started, the driving piece drives the rotating wheel 7 to rotate, so that the nesting roller 16 slides in the nesting groove 15, the telescopic rod 9 can be controlled to rotate within a certain range, the smoke abatement fire extinguishing cover 10 can be scanned within a fan-shaped range, and the advancing range can be comprehensively extinguished.
In an example of the present invention, the bottom of the bottom plate 1 is rotatably provided with a driving wheel 11 and a universal wheel 13, the driving wheel 11 is connected with a driving device to reduce the pushing force of manpower, the universal wheel 13 is provided with a clamping plate, the clamping plate has a braking effect on the universal wheel 13, and the driving wheel 11 and the universal wheel 13 are arranged to be convenient for moving, steering and fixing.
In an embodiment of the present invention, the side wall of the water tank 2 is provided with an observation window 12, and the observation window 12 is disposed to facilitate observation of the amount and state of water inside the water tank 2, and to facilitate timely addition.
In one embodiment of the invention, the air pump 3 is communicated with the air injection plate 14 arranged at the bottom in the water tank 2, the air injection plate 14 is provided with a plurality of air holes and is communicated with the air pump 3, and the arrangement of the air injection plate 14 increases the gas-liquid contact area and improves the absorption efficiency of the flue gas.
In one embodiment of the present invention, the smoke suppression and fire extinguishing cover 10 is a funnel structure with a downward opening.
In an example of the present invention, the telescopic rod 9 includes a mounting sleeve 20, a dual-shaft motor 21 and a telescopic tube 17, the mounting sleeve 20 is hollow and fixedly mounted with the dual-shaft motor 21, a rotating shaft inside the dual-shaft motor 21 is hollow and symmetrically communicated with a hollow screw rod 19, two ends of the mounting sleeve 20 are symmetrically nested in the telescopic sleeve 18 in a sliding manner, the screw rod 19 is threadedly nested inside the telescopic sleeve 18, the dual-shaft motor 21 is started to rotate the screw rod 19, so as to drive the telescopic sleeve 18 to extend and retract inside the mounting sleeve 20, thereby driving the telescopic rod 9 to extend and retract. The water hose 4 and the air hose 5 penetrate through an output shaft of the double-shaft motor 21 and the screw rod 19.
In one embodiment of the present invention, the cavities inside the telescopic sleeve 18 and the double-shaft motor 21 are both of a polygonal prism structure, so that the relative rotation of the telescopic sleeve 18 and the mounting sleeve 20 is avoided.
In one embodiment of the present invention, the outer surfaces of the water hose 4 and the air hose 5 are covered with the extension tubes 17, and the extension tubes 17 are arranged to prevent the water hose 4 and the air hose 5 from being worn, thereby preventing air leakage and liquid leakage.
Referring to fig. 3, in an embodiment of the present invention, a sliding groove 23 is formed at a radial position on an upper surface of the rotating wheel 7, a bolt 24 is rotatably disposed inside the sliding groove 23, a sliding seat 25 is slidably nested inside the sliding groove 23, a thread of the bolt 24 passes through the sliding seat 25, the nesting roller 16 is rotatably connected to an upper surface of the sliding seat 25, and the bolt 24 is screwed to adjust a position of the sliding seat 25 away from a circle center, so as to determine a rotating radius of the nesting roller 16, thereby adjusting a rotating sector angle of the telescopic rod 9, and adjusting a range of fire extinguishing and smoke eliminating of the fire extinguishing cover 10.
The above examples are merely representative of preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these are all within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A smoke prevention and fire extinguishing device for fire protection is characterized by comprising:
the fire extinguishing water tank comprises a bottom plate (1), wherein a water tank (2) is fixedly arranged on the upper surface of the bottom plate (1), and the water tank (2) is used for containing water or medicament for fire extinguishing;
an air pump (3) for driving air flow;
the smoke abatement fire extinguishing cover (10) is used for spraying water or medicament for fire extinguishing and absorbing the generated smoke;
the top of the water tank (2) is rotatably provided with a rotating shaft, the side walls of two ends of the rotating shaft are fixedly connected with an expansion link (9) and a connecting rod (8), the air inlet end of the air pump (3) is communicated with an air hose (5), the air outlet end of the air pump (3) extends into the bottom of the water tank (2) through a pipeline, the bottom of the water tank (2) is communicated with a water hose (4), the water hose (4) and the air hose (5) penetrate through the hollow connecting rod (8) and the expansion link (9) and are communicated with a smoke-eliminating fire-extinguishing cover (10) arranged at the end part of the expansion link (9), the inside of the side wall of the smoke-eliminating fire-extinguishing cover (10) is hollow and is communicated with a liquid spray nozzle (22) arranged inside the smoke-eliminating fire-extinguishing cover (10), the smoke-eliminating fire-extinguishing cover (10) is communicated with the air;
the top fixed mounting of connecting rod (8) at water tank (2) has the driving piece, and the output shaft fixedly connected with of driving piece rotates wheel (7), rotates the upper surface radial position rotation of wheel (7) and is provided with nested roller (16), and nested groove (15) have been seted up to the lower surface of connecting rod (8), and nested roller (16) are nested in the inside of nested groove (15).
2. A smoke prevention and fire extinguishing apparatus as defined in claim 1 wherein the bottom of the base plate (1) is rotatably provided with a driving wheel (11) and a universal wheel (13), the universal wheel (13) being provided with a catch plate.
3. A smoke prevention and fire extinguishing apparatus as defined in claim 1 wherein the side wall of the water tank (2) is provided with an observation window (12).
4. A smoke suppressing and fire extinguishing apparatus as defined in claim 1, wherein the smoke suppressing and fire extinguishing cover (10) is a funnel structure with a downward opening.
5. The smoke prevention and fire extinguishing device for fire fighting as defined in claim 1, wherein the air pump (3) is connected to an air-jet plate (14) disposed at the bottom of the water tank (2), the air-jet plate (14) is provided with a plurality of air holes and is connected to the air pump (3).
6. The smoke prevention and fire extinguishing device for fire fighting according to any one of claims 1 to 5, wherein the telescopic rod (9) comprises a mounting sleeve (20), a double-shaft motor (21) and a telescopic pipe (17), the mounting sleeve (20) is internally hollow and fixedly provided with the double-shaft motor (21), a rotating shaft inside the double-shaft motor (21) is hollow and symmetrically communicated with a hollow screw rod (19), the telescopic sleeve (18) is symmetrically nested in the two ends of the mounting sleeve (20) in a sliding manner, and the screw rod (19) is nested in the telescopic sleeve (18) in a threaded manner.
7. A smoke prevention and fire extinguishing apparatus for fire fighting as defined in claim 6 wherein the outer surfaces of the water hose (4) and the air hose (5) are wrapped with a flexible pipe (17).
8. The smoke prevention and fire extinguishing device for fire fighting of claim 6, wherein the cavities inside the telescopic sleeve (18) and the double-shaft motor (21) are both of a polygonal prism structure.
9. The smoke prevention and fire extinguishing device for fire fighting as defined in claim 1, wherein the upper surface of the rotating wheel (7) is provided with a sliding groove (23) at a radial position, a bolt (24) is rotatably disposed inside the sliding groove (23), the sliding seat (25) is slidably nested inside the sliding groove (23), the bolt (24) is threaded through the sliding seat (25), and the nesting roller (16) is rotatably connected to the upper surface of the sliding seat (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010379172.XA CN111494854B (en) | 2020-05-07 | 2020-05-07 | Smoke prevention and fire extinguishing device for fire fighting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010379172.XA CN111494854B (en) | 2020-05-07 | 2020-05-07 | Smoke prevention and fire extinguishing device for fire fighting |
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| Publication Number | Publication Date |
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| CN111494854A true CN111494854A (en) | 2020-08-07 |
| CN111494854B CN111494854B (en) | 2021-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010379172.XA Expired - Fee Related CN111494854B (en) | 2020-05-07 | 2020-05-07 | Smoke prevention and fire extinguishing device for fire fighting |
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| CN112169230A (en) * | 2020-09-10 | 2021-01-05 | 钟有财 | Smoke prevention and fire extinguishing device for fire fighting |
| CN112169231A (en) * | 2020-09-24 | 2021-01-05 | 钟有财 | Smoke-eliminating fire-extinguishing cart for fire fighting |
| CN112827098A (en) * | 2021-01-22 | 2021-05-25 | 东北林业大学 | Self-propelled crawler-type intelligent wind powder fire extinguishing robot for forest fire extinguishing and fire prevention |
| CN113134198A (en) * | 2021-05-19 | 2021-07-20 | 项宏霞 | Smoke prevention and fire extinguishing device convenient to operate |
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| CN112169231A (en) * | 2020-09-24 | 2021-01-05 | 钟有财 | Smoke-eliminating fire-extinguishing cart for fire fighting |
| CN112827098A (en) * | 2021-01-22 | 2021-05-25 | 东北林业大学 | Self-propelled crawler-type intelligent wind powder fire extinguishing robot for forest fire extinguishing and fire prevention |
| CN113134198A (en) * | 2021-05-19 | 2021-07-20 | 项宏霞 | Smoke prevention and fire extinguishing device convenient to operate |
| CN113134198B (en) * | 2021-05-19 | 2022-08-19 | 项宏霞 | Smoke prevention and fire extinguishing device convenient to operate |
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| CN111494854B (en) | 2021-09-07 |
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