68results about How to "Achieve fire extinguishing" patented technology

The invention relates to a monocular vision technique based fire monitor control method for adjusting relative positions of a fire point and a water-drop point, which belongs to the technical field of fire monitoring and self-extinguishing. By using a method for controlling a pitching angle and a horizontal angle for a plurality of times respectively in sequence, the fire monitor control method solves the problem of adjusting the relative positions of the fire point and the water-drop point in a three-dimensional space by using a two-dimensional image so that the water-drop point of the fire monitor can track the changes of the position of the fire point in real time so as to provide a condition for the self-extinguishing in a large space.

The invention provides a robot, a fire-extinguishing system and a fire-extinguishing method. A body of the robot is provided with a mobile module, a first control module and a fire-extinguishing module, wherein the mobile module is connected with a rail and used for driving the body of the robot to move along the rail; the rail is arranged inside a preset place which comprises at least one fire-extinguishing subarea; the first control module is connected with the mobile module and used for driving the body of the robot to move to the fire occurrence subarea of the preset place by controlling the mobile module; and the fire-extinguishing module is used for executing fire-extinguishing operation after the body of the robot moves to the fire occurrence subarea. The invention can realize quick, long-distance, wide-range and automatically controlled fire-extinguishing.

The invention discloses a device for preventing coal from burning spontaneously and rapidly extinguishing under a coal mine and a working method thereof. The device comprises a cylindrical foamed shell of which the two ends contract, wherein one end of the foamed shell is connected with a compressed air line; one side of the compressed air line is provided with a foam stock solution inlet; the other end of the foamed shell is connected with a foam output pipeline; 6-8 groups of spiral blades are arranged on a hollow shaft of an axis in the foamed shell at certain intervals; air outlet holes are formed among the spiral blades; included angles between the turning directions of the spiral blades and the axial direction of the hollow shaft are 45-60 degrees; each group of spiral blades has the same turning direction; and two adjacent groups of spiral blades have opposite turning directions. A mixture is foamed twice, so that the foaming times are raised to 50-150 times rapidly within a short period of time, and the aims of preventing and controlling spontaneous turning of coal and rapidly extinguishing are fulfilled.

The invention belongs to the field of environment sanitation facilities, and particularly relates to a water collecting type inflaming retarding garbage can. The water collecting type inflaming retarding garbage can comprises a base, the upper end of the base is fixedly connected with a can body, a can cover is rotatably connected into the can body, a water storage cavity is formed in the base, anannular water collecting groove is formed in the upper end of the base, and communicates with the water storage cavity through multiple water conveying channels, multiple water sucking pipes are arranged on the side wall of the can body in a penetrating manner, the input ends of the water suction pipes are attached to the bottom face of the water storage cavity, the output ends of the water suction pipes are arranged on the inner side wall of the can body, multiple Z-shaped air exhaust channels are formed in the inner side wall of the can body, two ends of the Z-shaped air exhaust channels are arranged on the inner and outer side walls of the can body, an annular cavity is formed in the inner side wall of the can body, a piston ring is in sliding seal connection into the annular cavity, and the interior of seal space formed by the lower side wall of the piston ring and the annular cavity is filled with evaporation liquid. Collected rainwater is used for achieving fire extinguishing ofthe garbage can, and the garbage can is energy-saving, environment-friendly, high in speed and capable of avoiding large danger.

The invention relates to the field of fire extinguishing materials, specifically relates to a water-based fire extinguishing agent, and particularly relates to an environment-friendly water-based fireextinguishing agent which uses a temperature-sensitive hydrogel as a fire extinguishing agent. The invention discloses a preparation method of the environment-friendly water-based fire extinguishingagent which uses water as a solvent; 0.6-0.8% of temperature-sensitive hydrogel, 1.5-3% of an inorganic salt, 6-8% of an anti-freezing agent, 5-10% of a stabilizer and 3-10% of a hydrocarbon surfactant are added. The environment-friendly water-based fire extinguishing agent provided by the invention using the temperature-sensitive hydrogel as the fire extinguishing agent to replace the use of a traditional fluorine-containing surfactant has characteristics of biodegradability, high viscosity, good wetting performance and excellent jetting performance, and can be widely applied to rescue in various Class A fires and Class B fires.

The invention discloses a side-hung tunnel fire-extinguishing robot mechanical system. The mechanical system comprises a box body, a track, a moving device and a fire-extinguishing system, wherein the track is mounted at the upper part of the side surface of a tunnel; the box body is mounted on the track through the moving device; the fire-extinguishing system is fixed on the box body; the moving device comprises two identical driving systems; each driving system comprises a driving wheel, an output shaft, a support sleeve, a bearing end cover, a supporting wheel, an electromagnet, a spring, a support plate and a motor; and the fire-extinguishing system comprises a rotary joint and an oscillating joint. The side-hung tunnel fire-extinguishing robot mechanical system has the characteristics of small size, compact structure and the like, can quickly reach the fire hazard field to promptly extinguish the fire in the environments that the tunnel is small and narrow in space, larger in depth, less in passageways, strong in closeness and poor in smoke removal and heat dissipation.

The invention provides a fire extinguishing and cooling system of a prefabricated cabin type electrochemical energy storage station based on liquid nitrogen. The system comprises a liquid nitrogen pump, a liquid nitrogen storage tank, a liquid nitrogen vacuum tube, an ultra-low temperature electromagnetic valve, a remote controller, a spray head, a pressure gauge and a hose, and a battery rack isfurther arranged in a prefabricated cabin. According to the system, the system is arranged in a prefabricated cabin, liquid nitrogen can be sprayed to batteries in the prefabricated cabin after fire is caused by thermal runaway of the lithium ion batteries, the liquid nitrogen is vaporized into nitrogen, the volume is rapidly expanded, the oxygen concentration around the batteries is reduced, flames cannot be maintained, and fire extinguishing is further realized. Meanwhile, liquid nitrogen vaporization can absorb a large amount of heat, after acting on the surfaces of the batteries, the surface temperature of the batteries is effectively reduced, the batteries are cooled, and thermal runaway propagation among the batteries is prevented. Finally, due to the fact that a large amount of nitrogen is accumulated in the prefabricated cabin, the concentration and the temperature of combustible gas generated due to the thermal runaway of the batteries are reduced, and the occurrence of reburning of the batteries is inhibited.

The invention relates to a battery module and a battery pack. The battery module comprises a battery cell (10) and a flame retardant device (20), wherein the battery cell (10) comprises a battery cellbody, a shell and a pressure relief device, the battery cell body and the pressure relief device are arranged in the shell, the pressure relief device is used for reducing air pressure in the shell when the battery cell (10) breaks down, and the flame retardant device (20) is used for breaking under explosion impact generated when the pressure relief device explodes so as to release a flame retardant to the battery cell (10). The battery pack comprises a plurality of battery modules. The flame retardant device can be broken through explosion impact generated by explosion of the pressure relief device when the pressure relief device explodes, and releases the flame retardant to the battery cell, so that the reaction is rapid, the fire extinguishing capacity is strong, the possibility of re-burning of the battery cell can be reduced, complete fire extinguishing is facilitated, and the safety performance of the battery module is improved.

The invention discloses a road administration garbage can capable of effectively preventing combustion. The road administration garbage can comprises an outer cylinder and an inner cylinder, wherein the inner cylinder is hung on the inner wall of the outer cylinder through a hook, a cavity is formed between the outer cylinder and the inner cylinder, a cover body is in bolt connection with the upper end of the outer cylinder, a water collecting tank is welded at the lower end of the cover body, the bottom end of the inner cylinder is provided with a water filtering net hole, the lower end of the water filtering net hole communicates with a one-way flow guide pipe, one end, far away from the water filtering net hole, of the one-way flow guide pipe communicates with a water collecting air bag, the water collecting air bag communicates with a water discharging pipe, and one end, far away from the water collecting air bag, of the water discharging pipe is connected with the water collectingtank. According to the road administration garbage can, accumulated liquid wastewater contained in garbage in the garbage can is filtered and recycled, so that the accumulated liquid wastewater can be recycled; and when an open fire occurs in the garbage can by improper use, and the heat of the inner cylinder is absorbed and transmitted through a silicon grease jacket, so that a memory alloy spring is heated and expanded, and therefore the wastewater in the water collecting air bag enters the water collecting box, and the fire extinguishing of the inner cylinder can be realized by utilizing the scattered wastewater.

The invention discloses a rotary swatting fire extinguisher, comprising an engine (3), a flexible shaft (4), a switch (5), a working rod (7) and a working head (8), wherein the engine (3) is connected with one end of the flexible shaft (4); the other end of the flexible shaft (4) passes through the working rod (7) with the switch (5) to be connected with the spindle (12) of the working head (8) of the front end; and the spindle (12) in the working head (8) is provided with a fire extinguishing soft belt driven by the spindle (12) to rotate. According to the technical scheme disclosed by the invention, workers carry the device to simultaneously quickly extinguish fire and clear a fire scene while the fire scene of a forest fire hazard is extinguished. The rotary swatting fire extinguisher has the advantages of good effect, low cost, and good market popularization and application value, can thoroughly clean, can avoid resurgence and can be quickly reloaded. The earlier the fire hazard is extinguished to eliminate the fire hazard hidden danger, the more loss for the nation and people is saved, and less pollution is reduced for the environment.

The invention belongs to the field of charging piles, and particularly relates to an automatic cooling and fire extinguishing charging pile which comprises a pile body, a cavity is formed in the pile body, a plurality of vertical heat absorbing pieces are fixedly connected into the cavity, the bottom ends of the heat absorbing pieces communicate with a water storage cavity, the top ends of the heat absorbing pieces communicate with a water collecting tank, and a circulating mechanism is arranged in the water storage cavity. An atomization cooling mechanism is arranged in the water collecting tank, a fire extinguishing mechanism is fixedly connected to the top wall of the cavity, a detection mechanism is fixedly connected to the bottom wall of the cavity, and the detection mechanism controls the working states of the fire extinguishing mechanism, the circulating mechanism and the atomization cooling mechanism. The temperature in the pile body is reduced through the detection mechanism, water is used for absorbing heat of the charging pile in a normal state, then heat in the pile body is discharged through evaporation of atomized water, and when the pile body spontaneously combusts, high pressure is generated in the fire extinguishing cavity through cooperation of the pricking pin and the liquid storage bag to press out a fire extinguishing agent to achieve fire extinguishing.

The invention discloses a sound wave fire extinguisher capable of automatically monitoring and tracking. The sound wave fire extinguisher comprises a control module and a moving module, wherein the control module comprises a power supply, a control circuit, a signal generator and a power amplifier, a power amplifier are used for supplying power to the control module and the mobile module, the control circuit controls the signal generator to send out a signal to the power amplifier, the mobile module comprises a movable cradle head device and a temperature sensor for carrying out temperature detection on the detection area, the loudspeaker is used for converting signals amplified by the power amplifier into sound waves, the sound gathering cover is used for gathering and emitting sound waves emitted by the loudspeaker, the loudspeaker is electrically connected with the power amplifier and is installed on the cradle head device, the cradle head device is controlled by a control circuit,the temperature sensor is arranged on the cradle head device and is electrically connected with the control circuit, and the sound gathering cover is arranged on the loudspeaker in a sleeved mode. Thedevice and the method disclosed can be applied to places with limited open fire, so that water-free and powder-free fire extinguishing can be realized.

The invention provides a fire extinguishing system. The fire extinguishing system comprises a manned / unmanned vehicle, an on-board device, on-board fire extinguishing rescue equipment and a ground fire-fighting device and support vehicle, wherein the manned / unmanned vehicle is provided with the on-board device and / or the on-board fire extinguishing rescue equipment; the ground fire-fighting deviceand support vehicle comprises a command and communication device, a ground fire-fighting device, a vehicle body and facilities of the vehicle body. The on-board device comprises an emission device and further comprises any one or more of an investigation device and a loudspeaker device; and the on-board fire-extinguishing rescue equipment comprises any one or more of a fire extinguishing bomb, atraction bomb, a rescue bomb, a fire extinguishing agent sprayer and a broken window system. The fire-extinguishing system includes the fire extinguishing bomb, the traction bomb, the rescue bomb andother various types of fire fighting bombs, the fire-extinguishing fighting ways are particle and flexible, fire extinguishing and rescue of multiple dimensions, such as the time dimension and the task dimension can be achieved, and the system is suitable for fire-extinguishing rescue tasks in various complicated fire scenes.

The invention relates to the technical field of aircrafts, in particular to a multifunctional remote control multi-rotor aircraft and a method. The multifunctional remote control multi-rotor aircraft adopted in the method comprises a chassis 7, a cap 3, arms 5 and propellers 4, wherein the arms 5 are uniformly distributed on the periphery of the chassis 7; motor bases 2 are arranged on the arms 5; the propellers 4 are arranged on motors 1 fixed in the motor bases 2; the cap 3 is arranged at the upper part of the chassis 7; a battery is fixed in the cap 3; a flight control system 17 is arranged in the chassis 7; a signal end of the flight control system 17 is connected with a wireless transceiver 6 for communication with a ground remote-control unit through a signal wire; a power output end of the flight control system 17 is connected with the motors 1, uniformly distributed on the periphery of the chassis 7, through wires; peripheral equipment 11 is arranged at the lower part of the chassis 7.

The invention discloses an aircraft equipped with a fire-fighting unit and a rescuing facility. The aircraft is provided with a flying-wing fixing frame and a fire-fighting rack, wherein the flying-wing fixing frame is provided with, from left to right, a left placement area, a middle placement area and a right placement area; the fire-fighting rack is arranged in the middle placement area; a first flight wing device and a second flight wing device are respectively arranged in the left placement area and the right placement area; the upper parts of the left placement area and the right placement area are respectively provided with a third flight wing device and a fourth flight wing device; the third flight wing device and the fourth flight wing device are both slidably connected with the flying-wing fixing frame; the fire-fighting rack is internally provided with a first fire-fighting workbench, a rescue capsule and a second fire-fighting workbench; the first fire-fighting workbench is provided with a fire-fighting equipment placing rack and a firefighter workbench; the rescue capsule is composed of a multi-section capsule body unit and an expansion device; the output terminal of the expansion device is fixedly connected with the multi-section capsule body unit; a connecting device is arranged in the capsule body unit and used for butt joint of the rescue capsule with a rescue building.

The invention discloses an inert gas protection system for an industrial adsorber and an operation control method thereof, belonging to the field of environmental protection safety. The inert gas protection system comprises a multi-chamber splitting combined adsorber, a nitrogen gas inlet, a temperature controller and a temperature detection element, wherein the multi-chamber splitting combined adsorber is provided with the nitrogen gas inlet; the temperature detection element is located in the multi-chamber splitting combined adsorber; the temperature detection element is in electric signal connection with the temperature controller; the temperature controller is used for controlling inert gas to enter and exit from an inert gas inlet; and pipelines communicated with an adsorption gas inlet, an adsorption exhausting hole, a desorption gas inlet and a desorption gas outlet of the multi-chamber splitting combined adsorber are correspondingly provided with an adsorption gas inlet control valve, an adsorption exhausting control valve, a desorption gas inlet control valve and a desorption exhausting control valve. According to the inert gas protection system, line connection can be changed on an existing high-temprature combustible adsorber and temperature detection and control devices are arranged and upgrading and improvement are directly carried out, so that the cost is saved.

The technology provides an automatic water collecting and fire extinguishing tree which can automatically be used for storing rainfall, automatically detecting a forest fire, fire spreading and smog of the forest fire, and automatically spraying water to suppress the forest fire when the forest fireline is reaching. The water collecting and fire extinguishing tree is particularly suitable for areas where forest fires take place frequently and comprises a trunk, a tree crown, a smog and fire detecting system and an automatic fire extinguishing system; the trunk is an airtight hollow column body used for storing water; the tree crown comprises at least one water collector used for collecting rain water; the water collector comprises a leaf and a leaf stem; the leaf is a curved surface which is concave in the middle and high on two sides; the upper end of the leaf stem with a through hole is connected to the edge of the concave part of the leaf; the lower end of the leaf stem penetrates a leaf stem hole in the trunk wall and extends into the internal cavity of the trunk; the water collector is inclined, so that rain water can drip along the two sides of the curved surface to gather in the concave middle part and flows in the trunk through the through hole of the leaf stem; the automatic fire extinguishing system comprises a water pump arranged on a water spray pipe, and a controller for controlling the water pump to work; one end of the water spray pipe extends in the internal cavity of the trunk, and the other end of the water spray pipe is connected with a spray nozzle; and the smog and fire detecting system comprises a smog sensor which is electrically connected with the controller.

The invention discloses a fire protection device for public fire protection and relates to the technical field of fire protection, and the problem that a fire hazard in a public area cannot be discovered in time and put out is mainly solved. The fire protection device for the public fire protection includes a device body, a first rotary rod, a water tank, a second rotary rod and a first motor, wherein the device body is provided with the first rotary rod, the first rotary rod penetrates through the top of the device body, extends to the lower end of the device body and is rotatably connected with a first bearing, a first fixing supporting base is arranged at the upper end of the first rotary rod and connected with a first connecting rod in a hinged mode, the first connecting rod is arranged on the middle of the right end of the water tank, a water inlet hole is formed in the right end of the top of the water tank, an information collecting device is arranged on and fixedly connected with the upper part of the right wall of the water tank, and a water tube is arranged in the water tank. According to the fire protection device for the public fire protection, the energy can be effectively saved, and meanwhile monitoring, fire suppression and alarm emitting are conducted in an intelligentized mode, so that effective fire preventing and fire suppression are achieved, and the fire protection device for the public fire protection has the promotional value.

The invention relates to a vehicle-mounted fire extinguishing system. The vehicle-mounted fire extinguishing system comprises a heat detection device, a manual start button, a fire extinguishing device, a controller, an electric motor and a base, wherein the fire extinguishing device comprises a tank body and an executing mechanism, the heat detection device is electrically connected with the controller, the controller is electrically connected with the executing mechanism of the fire extinguishing device, the fire extinguishing device is fixed on the base, the base is rotationally arranged in an engine compartment by the electric motor, the executing mechanism of the fire extinguishing device comprises a solenoid valve which is arranged on a nozzle of a tank body, the controller drives the electric motor by an electric motor driving circuit, and the controller drives the solenoid valve by a solenoid valve driving circuit. The vehicle-mounted fire extinguishing system is low in cost and high in reliability, can be installed simply, the base is rotatable, multi-azimuth fire extinguishment can be realized, and when an automatic control system has a fault, a manual starting device can be adopted for realizing fire extinguishment.

The invention relates to a hydraulic arm structure mounted in high-rise buildings. The hydraulic arm structure comprises a base, a rotating motor, a fixed seat, more than two telescopic arms which are nested sequentially, a spray arm and a high-pressure water pipe; the rotating motor is fixed on the base, and the fixed seat is fixed on the rotating motor; the telescopic arm at the foremost end of the sequentially nested telescopic arms is hinged with the fixed seat, and the front end of the rearmost end of the telescopic arm is fixedly connected with the spray arm through a connecting pipe; one end of the high-pressure water pipe penetrates the telescopic arms and the spray arm in sequence to be connected with a spray nozzle at the tail end of the spray arm while the other end is connected with a water source. By the above structure, the hydraulic arm structure is conveniently mounted in the floor, extinguishment can be performed to the exterior buildings by simple movement, and the structure can also be mounted on a fire fighting truck or a chassis truck to perform all-dimensional spray on fire coverage areas.

The invention discloses a long-life anti-radiation field bus cable used near a nuclear island reactor core of a nuclear power station, and the long-life anti-radiation field bus cable sequentially comprises an outer sheath and a total inner sheath from outside to inside; the total inner sheath is internally provided with a tensile rope, a signal cable core and a power cable core, and the power cable core sequentially comprises a first inner sheath, a flame-retardant layer, a first insulating layer and a first conductor from outside to inside; the signal cable core sequentially comprises a second inner protective layer, an outer shielding layer, a middle shielding layer and an inner shielding layer from outside to inside, the inner shielding layer is provided with a core wire and a filling rope, and the core wire comprises a second conductor and a second insulating layer wrapping the second conductor. The cable provided by the invention is good in shielding effect and good in cable protection effect.

The invention discloses a fire-resistant transformer, which comprises: a coil frame wound with a coil, a magnetic core placed in the central through hole of the coil frame, a fire-resistant transformer shell, vents arranged on both sides of the fire-resistant transformer shell, and a A closure assembly that can rotate and close the vent, and a temperature sensor located in the shell of the fire-resistant transformer. The invention provides a fire-resistant sealing cover that can close the coil, which can provide a sealed space for the coil in case of fire, and the coil cannot maintain combustion due to no oxygen supply, so as to realize fire extinguishing and avoid safety accidents.

The invention provides a novel indoor fireproof composite door and relates to the technical field of fireproof doors. The novel indoor fireproof composite door comprises a door body. A frame which projects out is disposed in the middle of the front of the door body and around the door body above its middle. The frame is a hollow solid, and a water tank is disposed in the frame and is provided with an outflow valve. The outflow valve is further connected with a controller mounted in the door body. The frame is provided with a plurality of holes. The surface of the door body is further provided with fireproof material. The surface of the upper end of the door body is further provided with a temperature control probe which is connected with the controller. The novel indoor fireproof composite door is simple in structure, simple to use and effective in preventing and extinguishing a fire to achieve prevention and make the indoor safer.

The invention discloses an anti-toppling drawer type switch cabinet. According to the technical scheme, the anti-toppling drawer type switch cabinet comprises a cabinet body, a plurality of drawers are connected to the cabinet body in a sliding mode, an anti-toppling device is arranged on the cabinet body, a device cavity is formed in the bottom of the cabinet body, the anti-toppling device and the drawers are arranged in a linkage mode, and the anti-toppling device comprises a driving plate arranged in the device cavity; the bottom of the driving plate is provided with a plurality of reset springs for connecting the device cavity; connecting rods are hinged to the two ends, facing the side face of the drawer, of the driving plate, horizontally-moving push rods are hinged to the connecting rods, one ends of the push rods are hinged to the connecting rods, supporting legs are hinged to the other ends of the push rods, and the pair of supporting legs are hinged to the cabinet body; an electromagnet located above the driving plate is further arranged in the device cavity, and a magnetic block matched with the electromagnet is arranged on the top face of the driving plate. Through the arrangement, after the drawer is pulled out, the driving plate can push the push rod to unfold the supporting legs, so that an auxiliary supporting effect on the cabinet body is achieved, and the cabinet body is prevented from toppling due to the change of the gravity center.

The invention discloses an environment-friendly wood structure building automatic fire-fighting device, and relates to the technical field of fire-fighting devices. The environment-friendly wood structure building automatic fire-fighting device comprises an upper tank body, wherein a connecting pipe is fixedly connected to the interior of the upper tank body; a pressurizing pipe is fixedly connected to one end of the connecting pipe; a hose is fixedly connected to the bottom end of the pressurizing pipe; a lower tank body is movably connected to the bottom end of the upper tank body; a through hole is formed in one side of the lower tank body; a spray head is movably connected to the interior of the through hole; the other end of the hose is fixedly connected with the spray head; and a first gear is movably connected to the interior of the lower tank body. A detector is matched with a plurality of detection sensors at the bottom end of the detector, so that whether high temperature exists in multiple directions of an area can be detected, the high temperature can be positioned, and a second motor can drive a second gear to be matched with a tooth groove, so that the lower tank body can rotate, and the connecting pipe can be fixedly supported through a fixing frame.

The invention discloses a moisture-proof distribution box with a good heat dissipation effect, and the distribution box comprises a box body, an annular guide rail is fixed in the box body, a rotating plate is rotatably sleeved in the guide rail, a support is fixed at the top of the rotating plate, and the support is of a rectangular frame structure. An online observation mechanism and a purging mechanism which are used for observing electrical components are mounted in the box body, an exhaust mechanism is mounted at the top of the box body, and rollers are mounted at the bottom of the box body. During operation, the box door does not cause interference, the operation convenience is greatly improved, the condition in the box body can be remotely seen in real time without opening the box body, heat dissipation and internal moisture removal are performed on electrical components in the box body, normal operation of the electrical components in the box body is ensured, and fire extinguishing in the box body is realized.

The invention discloses a stabilizing device for an unmanned aerial vehicle based on spraying of a spraying pipe, and belongs to the field of unmanned flight, the stabilizing device comprises a base, the base is provided with the spraying pipe, the bottom surface of the base is fixedly provided with a thrust device, and the thrust direction of the thrust device is opposite to the spraying direction of the spraying pipe; a guide device capable of changing the water flow direction is elastically and movably arranged at the spraying end of the spraying pipe; according to the stabilizing device for the unmanned aerial vehicle based on spraying pipe spraying, by arranging the reverse thrust rotor wings, when the aircraft conducts spraying fire extinguishing, reaction is balanced, the fuselage can reach balance, the flow speed of sprayed water flow is collected and fed back to the reverse thrust rotor wings, the reverse thrust can be adjusted in real time, and the stability of the unmanned aerial vehicle is improved. The aircraft can be balanced in real time, and the influence of external force is reduced.

The invention discloses a cable bridge frame which is convenient for fire prevention. The cable bridge frame comprises a bridge cover plate arranged on the wire groove of the bridge frame, a fire extinguishing powder groove arranged at the bottom of the wire groove of the bridge frame, and a controller arranged on the wire groove of the bridge frame. The bottom plate of the bridge wire trough is a mesh plate, a mesh bearing plate is arranged above the bottom plate, fans are arranged on the bottom plate, several fans are arranged along the bridge wire trough, and the bottom of the bridge cover plate is set There are smoke sensors and temperature sensors, and several of the smoke sensors and temperature sensors are arranged along the wire slot of the bridge, and the side plates of the wire slot of the bridge are provided with vents, and the smoke sensor, the temperature sensor and the fan are respectively connected with the controller electrical connection. The invention can monitor the fire situation in the cable bridge frame, realize rapid fire extinguishing, effectively prevent fire accidents in the cable bridge frame, and ensure the use safety of the cable bridge frame.

The invention relates to the technical field of fire detection, in particular to a fire alarm and regional fire extinguishing device which comprises a first shell, a second shell, a third shell, a transmission assembly, a water outlet pipe, a columnar cam and a water inlet pipe. When a fire occurs indoors, the fire is positioned through four temperature sensors, whether the fire occurs indoors or not is determined through a smoke sensor, then a motor drives the third shell to rotate to the fire, the water outlet pipe discharges water into a room, the motor rotates reversely, a columnar cam rotates reversely, a connecting rod is overturned up and down in a reciprocating mode, fire extinguishing is conducted on a fire area, regional fire extinguishing is conducted indoors, and therefore the situation that an existing fire extinguishing nozzle conducts water falling fire extinguishing on the whole room, and the fire extinguishing efficiency is low is avoided.