2389 results about "Fire extinguisher" patented technology

The invention belongs to the technical field of fire safety, and discloses a fire-fighting equipment detection early warning method and system based on a visual camera, and the method comprises the following steps: obtaining multi-focal-length image frames of a fixed spray head and a fire extinguisher edge region, judging the continuous change of gray scale in the continuous image frames, and carrying out the detection early warning of the fire-fighting equipment based on the visual camera. Comparing the gray level distribution difference under the long focus and the short focus, identifying the dynamic trajectory of the contour line angular point of the fire-fighting equipment association structure, analyzing the delay of the function action response, marking as an abnormal region, and generating a fire-fighting equipment collaborative early warning information set; according to the invention, by extracting and analyzing the multi-focal-length image frames of the edge areas of important facilities such as a fixed spray head and a fire extinguisher, fine changes of the fire-fighting facilities under differentiated focal lengths can be captured, working states and potential faults of the fire-fighting facilities can be judged, functional abnormalities caused by equipment aging or damage can be recognized in advance, early warning can be carried out in real time, and the safety of the fire-fighting facilities can be improved. And a higher guarantee level is brought to fire safety.

The invention relates to the technical field of fire-fighting management, and discloses an intelligent fire-fighting service management system, which comprises a data acquisition unit used for acquiring three basic parameters, namely environment data, working condition data and battery data, of a fire-fighting object in an office building, and the system acquires the environment, working condition and battery data of a fire extinguisher through the data acquisition unit; the fusion unit generates a dynamic composite abnormal threshold value, and the adjustment unit executes a three-stage sampling frequency adjustment mechanism according to the threshold value, the battery health degree score and the data deviation degree, which means that the sampling frequency can be reduced to reduce the battery energy consumption when the state of the fire extinguisher is normal and the risk is relatively low, and when the risk is increased or the battery health degree is reduced, the battery energy consumption is reduced. The whole system realizes accurate management and regulation of the battery according to the actual working condition of the fire extinguisher, energy waste is avoided, the service life of the battery is prolonged, the cost of frequently replacing the battery is reduced, and the sustainability of intelligent fire control management is enhanced.

According to the intelligent fire extinguishing system for the transformer, internal and external data of the transformer are collected in real time through a sensor module, the collected data are preprocessed through a data processing and model module, and a large model architecture based on Transform and a multi-head self-attention mechanism are adopted; the current temperature state and the future temperature change trend of the transformer are predicted in real time, risk assessment and anomaly detection are carried out, multi-stage temperature threshold values are set in the system, real-time data processing and model optimization are achieved through an edge computing and cloud computing cooperation module, the response speed and prediction accuracy of the system are improved, and the system reliability is improved. The infrared monitoring module monitors the temperature change and the fire condition outside the transformer in real time and accurately detects a fire or an abnormal high-temperature area, and when the fire is detected or a dangerous-level temperature early warning is received, the fire extinguishing module starts the non-pressure-storage fire extinguisher, sprays a fire extinguishing agent and rapidly extinguishes a fire, so that the safety and reliability of the transformer are enhanced, and the safety of the transformer is improved. And the operation cost is reduced, and the application prospect is wide.

The invention relates to the technical field of laser cutting, and discloses stainless steel fire extinguisher bottle laser notching equipment and a pressure-resistant stainless steel fire extinguisher bottle. The stainless steel fire extinguisher bottle laser notching equipment comprises a machine tool, a support arranged at the top of a working table top of the machine tool, and an air supply mechanism arranged on a mechanical arm of the machine tool; the adjusting mechanism is arranged in the air supply mechanism; the air supply mechanism comprises a shell arranged on the mechanical arm, a laser arranged at the top of the shell, a partition plate arranged in the shell, a rotating block arranged at the bottom of the laser, a three-way hole formed in the top of the rotating block, three air pipes arranged at the top of the shell in an annular array mode and branch pipes arranged at the bottoms of the air pipes. By arranging the gas supply mechanism and the adjusting mechanism, the laser cutting equipment can quickly switch different auxiliary gases, the cutting efficiency and flexibility are improved, and switching of the inner hole of the nozzle is achieved so as to adapt to different machining requirements.

A stand for a fire extinguisher comprises four identical panels and a square plate. Each panel has a rectangular portion and an isosceles trapezoid-shaped portion. The isosceles trapezoid-shaped portion has only two sides of equal length. The four identical panels are interconnected along their equal-length sides to form a truncated square pyramid having a rectangular box at its upper end. The square plate is mounted inside of the rectangular box parallel to a base of the pyramid to support a fire extinguisher.

The present invention provides a high-tech stove fire detector and suppression system comprising an exhaust hood and a stove unit with multiple burners on a cooktop. The exhaust hood includes an overhead unit with fire extinguisher nozzles to combat fires on the cooktop. Sensors detect smoke or fire, while the stove unit has a sensor for detecting the presence of a person within a 10-foot range. The system also features LED lights with video cameras, a ventilation display with an emergency turn-off button, and four power outlets. A mobile application allows remote control of the system, including burner and oven controls. This invention offers an efficient solution for fire detection, suppression, and remote management in any kitchen.

The invention provides an intelligent fire extinguishing strategy control method for an autonomous flight fire extinguisher, and belongs to the technical field of intelligent navigation fire extinguishment. The method comprises the following steps: firstly, acquiring fire scene data through a multi-source sensor, and constructing a fire behavior positive and negative development matrix; then, route planning is carried out based on a pre-trained deep learning model, the model adopts a special convolution kernel structure to extract fire scene features, and a decision is optimized through a mathematical calculation module; and the system updates a fire matrix in real time, dynamically adjusts a fire extinguishing strategy, and finally completes a precise fire extinguishing task through a time sequence aligned control instruction. According to the method, efficient control over the autonomous flight fire extinguisher in the complex environment is achieved through data driving and intelligent decision making, and the technical problem that in the prior art, an autonomous flight fire extinguisher is difficult to achieve precise fire extinguishing path planning and fire extinguishing strategy control in the complex fire environment is solved.

To provide a notification transmitter and receiver, a notification system, a fire extinguisher stand, a notification transmitter, a notification transmitter and a notification receiver that can easily carry out a rapid and continuous firefighting activity.SOLUTION: A notification transmitter and receiver which is attached to a fire extinguisher stand for placing a fire extinguisher, and comprises: a transmitting unit that transmits instruction information corresponding to a notification instruction to an external field when the fire extinguisher is removed from the fire extinguisher stand; a receiving unit that receives the instruction information transmitted from the external field; and a notification unit that notifies a presence of the fire extinguisher when the instruction information is received by the receiving unit.SELECTED DRAWING: Figure 2

The invention provides a power distribution box line protection device facilitating later maintenance and a fire protection method, and relates to the technical field of power distribution boxes. The power distribution box line protection device comprises a power distribution box body, a protection gate plate, a lifting assembly and a fireproof bag assembly; a wiring board is arranged in the distribution box body; heat dissipation windows are arranged on two side plates and a back plate of the power distribution box body; the protective flashboard is arranged on the outer side of the power distribution box body in a lifting manner; the wiring plate is supported on a rotary hanging plate in the distribution box body through a fixed hanging plate; the fireproof bag assembly comprises a lifting frame body and a fireproof bag, and the lifting assembly comprises a lifting driving mechanism and two vertically-arranged lifting screws. The power distribution box line protection device has the beneficial effects that the power distribution box line protection device can close the heat dissipation window of the power distribution box through the protection gate plate in the first time after a fire occurs, meanwhile, the fireproof bag can be used for isolating a fire component, and the fire component is subjected to closed and buried fire extinguishment in combination with the jet fire extinguisher, so that the fire extinguishment success rate is increased, and the fire time is shortened; the fire loss is reduced.

The utility model relates to the technical field of fire fighting equipment, in particular to a fire extinguishing device for an unmanned mine car, which comprises a fire extinguisher with a self-starting function, a temperature detection device, a pipeline and a plurality of sprayers, the spray head is connected with the fire extinguisher with the self-starting function through the pipeline; the plurality of nozzles are respectively aligned with a wiring harness, an oil pipe and an engine exhaust pipe area of the unmanned mine car; the temperature detection device is mounted in the areas of a wiring harness, an oil pipe and an engine exhaust pipe of the unmanned mine car and is electrically connected with the fire extinguisher with the self-starting function; when the temperature detection device detects that the temperature exceeds a preset value, a signal is fed back to the fire extinguisher with the self-starting function, the fire extinguisher with the self-starting function starts the fire extinguishing function and sprays a fire extinguishing agent outwards through the spray head, and the sprayed fire extinguishing agent immediately extinguishes the ignition part in the spray head installation area. Therefore, the purposes of extinguishing flames and controlling fire behaviors are achieved.

The utility model relates to the technical field of fire extinguisher valve body assembly, in particular to fire extinguisher valve body assembly equipment. Comprising a workbench; the conveying mechanism is used for circularly conveying valve body parts, a plurality of assembling carriers are placed on the top of the conveying mechanism, and the conveying mechanism comprises a first conveying frame and a second conveying frame which are fixed to the two sides of the top of the workbench; the top of the workbench is provided with a valve body plastic shell feeding mechanism along the first conveying frame, and the valve body plastic shell feeding mechanism is used for feeding and assembling valve body plastic shells; the spring feeding and mounting mechanism is used for feeding and assembling the spring in the valve body; and the copper head feeding and mounting mechanism is used for feeding and assembling the copper head of the valve body. According to the fire extinguisher valve body assembling equipment, the whole assembling process is high in automation degree, the assembling efficiency is greatly improved, the manual labor intensity is reduced, the assembling accuracy can be guaranteed, normal use of a fire extinguisher is not affected, and therefore the yield is improved.

The utility model relates to the technical field of fire extinguishers, and discloses a pipe bender capable of bending at any angle, which comprises a machine body and a metal pipe conveying device, the upper end of the machine body is sequentially provided with an output component, a bending mechanism and a rotary clamping mechanism from left to right, the bending mechanism comprises a bending block and a rotary component, the bending block is fixed at the upper end of the machine body, and the rotary component is fixed at the lower end of the machine body. A bending groove matched with the metal pipe is formed in the side wall of the bending block, a rotating shaft is rotationally connected to the upper end of the bending block, a rotating block is fixed to the side wall of the rotating shaft, an extrusion wheel is rotationally connected to the lower end of the rotating block, and an extrusion groove matched with the metal pipe is formed in the side wall of the extrusion wheel; the rotary clamping mechanism comprises a clamping assembly, a rotating assembly and a pushing assembly, the bending mechanism is arranged, so that a metal pipe can be bent into a needed angle, the problem that an existing pipe bending machine can only bend a certain angle is solved, the practicability of the pipe bending machine is improved, the pipe bending machine can meet the production requirements of bent pipes of various different angles, and the production cost is reduced.

The invention relates to an indoor transformer with an automatic fire extinguishing system, the transformer comprises a bearing frame, a fixing plate, a rotating shaft, a non-stored pressure type buffer fire extinguisher, a connecting pipe, a top frame spraying device and the like, through the design of the non-stored pressure type buffer fire extinguisher, a fire extinguishing agent can be quickly sprayed; in addition, the system is provided with a secondary suction pipe, unused dry powder can be recycled, the resource utilization rate is increased, the operation cost is reduced, the system is further provided with a standby fire extinguisher, when the main fire extinguisher cannot completely extinguish the fire, the standby system is automatically started, and the fire extinguishing efficiency is improved. A non-stored pressure type buffer fire extinguisher is adopted, when a fire occurs, an external power source is not needed, after a gas generator is triggered through a UPS power source, a fire extinguishing agent can be rapidly released, and fire extinguishing dry powder is sprayed to a fire source area through a connecting pipe and a spraying device.

The present invention discloses a fully automatic free-body hydrostatic strength detection device for fire extinguisher cylinders, which includes a frame, a low-pressure water pump, a high-pressure water pump, an inlet ball valve, a check valve, an exhaust ball valve, an inlet air valve, a pressure sensor, a warning light, a drain ball valve, a positioning tooling, a free-body clamping device, an air delivery pipe, a water tank, an oil tank, a vane pump, a control box and an operation panel. Workbenches and a box body shell are respectively arranged on the left and right sides of the frame. An operation panel is arranged on one side of the box body shell, and a control box is arranged beside the operation panel. An exhaust ball valve and an inlet air valve are arranged beside one side of the control box, and a pressure sensor is arranged between the exhaust ball valve and the inlet air valve. An inlet ball valve and a drain ball valve are respectively arranged beside both sides of the exhaust ball valve and the inlet air valve. The operation of the present invention is convenient, suitable for mass production on a production line, with a high degree of automation, no need to detect one by one, improving work efficiency, greatly reducing the labor intensity of operators, and improving the detection quality, and having relatively high safety.

The invention relates to the technical field of comprehensive pipe galleries, and provides a comprehensive pipe gallery cable fire intelligent identification and prevention and control linkage system. In the system, fire simulation is carried out on a comprehensive pipe gallery cable through a cable fire simulation device; the fire behavior of the cable in the pipe gallery is monitored in real time through the image acquisition unit, and the acquired simulated fire image information is transmitted to the deployed fire identification model in real time for fire identification, so that the fire identification result of the fire identification model is judged through the deployed fire early warning model. A fire extinguishing instruction or an early warning instruction is sent out according to the judgment result; further, the fire extinguishing linkage device responds after receiving the fire extinguishing instruction, and a self-made fire resisting shutter with a flexible steel brush is firstly started to block a fire point area; and then a telescopic end of an electric push rod mounted at the top of the pipe rack quickly extends out to crush a temperature sensing glass ball of the suspension type fire extinguisher, so that quick linkage prevention and control of the pipe rack cable fire are realized.

The invention discloses a battery energy storage cabinet with a built-in automatic fire-fighting structure, which comprises an energy storage cabinet main body, a drawer bracket is arranged in an inner cavity of the energy storage cabinet main body, and a plurality of groups of battery placement boxes are arranged on the drawer bracket; and a smoke sensor and a temperature sensor are arranged on the drawer bracket and are positioned above each group of battery placement boxes. According to the invention, a smoke shielding fire extinguishing structure is arranged in the battery energy storage cabinet with a built-in automatic fire extinguishing structure; an electric telescopic rod in the smoke shielding fire extinguishing structure is utilized to enable a fire extinguisher to spray a fire extinguishing agent to the upper part and the lower part of an abnormal battery placement box through a fire extinguishing agent spray head on a fire extinguishing agent spray pipe under a sealed condition by virtue of a transmission structure, so that the fire can be extinguished more quickly; and meanwhile, the surrounding battery packs are protected from being influenced by the fire, so that the problems that the fire cannot be extinguished quickly and the surrounding battery packs are influenced by the fire are solved.

The utility model relates to the technical field of power distribution cabinets, and discloses a power distribution cabinet with a fire extinguishing structure, which comprises a cabinet body, the cabinet body is hinged with a cabinet door, the inner wall of the cabinet body is fixedly connected with a mounting rack, the side wall of the cabinet body is provided with a ventilation opening, and the inner wall of the cabinet body is provided with a fire extinguishing assembly. According to the power distribution cabinet with the fire extinguishing structure, the shielding plate shields the ventilation opening, the interior and the exterior of the cabinet body are isolated, oxygen is prevented from entering through the ventilation opening, a combustion-supporting substance is provided for flame combustion, the fire extinguisher is pressed down, carbon dioxide is sprayed into the cabinet body through the nozzle, the content of carbon dioxide in the cabinet body is increased, oxygen supply in the combustion process is restrained, and the combustion efficiency is improved. And by cutting off air exchange, increasing the content of carbon dioxide and reducing comburent required by combustion, fire extinguishment in the power distribution cabinet is realized, electric shock accidents are prevented, and meanwhile, the problems of short circuit or insulation damage caused by water and the like are solved.

The invention provides a fire extinguisher tank bursting pressure prediction method and system. According to the method, a micro-deformation sequential sequence and a pressure gradient value of the surface of the fire extinguisher tank body under high pressure are collected, and a deformation displacement field matrix is generated through optical flow analysis so as to quantify the deformation rate; a laser holographic interferometer is deployed on a pressurization test bench, laser phase parameters are dynamically adjusted based on the deformation rate, matched holographic interference fringes are output, and a deformation evolution topological graph is constructed through fringe phase changes; identifying a deformation rate abnormal fluctuation mode in the topological graph, and associating the pressure gradient value to generate a deformation pressure association tensor; acquiring a deformation propagation path and a stress concentration trend based on the tensor, and simulating a critical fracture pressure value and a potential fracture position; and integrating results to form bursting pressure risk output. According to the invention, millisecond-level accurate prediction of the submillimeter-level fracture position is realized, the burst pressure risk assessment precision is improved, and the test cost is reduced.

The invention discloses a three-dimensional roll iron core transformer, and relates to the technical field of transformers, the transformer comprises a transformer body, a base and a heat dissipation shell, the base is arranged at the center of the lower end of the transformer body, the heat dissipation shell is arranged on the outer side of the transformer body, and a heat dissipation space is reserved between the heat dissipation shell and the outer wall of the transformer body; a main condensation pipe is wound on the outer wall of the transformer body, the heat dissipation space comprises multiple groups of heat flow spaces and storage spaces, the heat flow spaces and the storage spaces are distributed at intervals and are communicated, a storage groove is formed in the outer wall of the heat dissipation shell between each heat flow space and the corresponding storage space, and a fire extinguisher is arranged in each storage groove. Through air cooling cooperation of the main condensation pipe and the fan on the heat dissipation space, effective heat dissipation and cooling of the transformer body are achieved, and in cooperation with the reversible deformation characteristic of the memory metal sheet, the fire extinguisher is triggered to extinguish fire when the temperature of the transformer body rises abnormally, so that fire fighting of the transformer body is more timely, and the safety of the transformer body is improved. And the damage to the transformer body is greatly reduced.

A robotic firefighting system includes: sensors that detect where a fire is located; a base having a movement mechanism; LIDAR and RGB camera positioned on the base for navigation; a fire extinguisher having a nozzle and a fire extinguisher ball launcher positioned on the base to extinguish the fire; a thermal camera to locate the fire; and a robotic arm attached to the nozzle of the fire extinguisher to direct the nozzle toward the fire. The sensors can be remotely located or located on the base.

The complete welding tool comprises a bottom plate, brackets are fixed to the upper end face of the bottom plate in a bilateral symmetry mode, the fire extinguisher cylinder is placed on the brackets, a lower end socket is arranged on the left side of the fire extinguisher cylinder, and a lower end socket is arranged on the right side of the lower end socket. An upper sealing head is arranged on the right side of the fire extinguisher cylinder, and fixing plates are further fixed to the bottom plate in a bilateral symmetry mode. According to the complete-set welding tool for accurate alignment of the fire extinguisher end socket and the barrel, by arranging the rotating disc with the multiple sets of first positioning sleeves and second positioning sleeves of different sizes and conducting indexing rotation through the first motor, rapid switching of an upper end socket positioning tool and a lower end socket positioning tool is achieved, and an operator only needs to control the motor to rotate through a program; and the adaptability of equipment to production of fire extinguishers of different specifications is greatly improved, the model changing speed is high, and the production efficiency is greatly improved.

An energy storage system includes a battery module including a plurality of battery cells, a battery rack supporting the battery module, a detector configured to detect at least one of a change in temperature or a change in size of the battery module, and a fire extinguisher configured to spray a fire extinguishing agent on the battery module based on data detected from the detector.

The utility model relates to the technical field of electric power base stations, in particular to an electric power base station fire-fighting device for electric power engineering, which comprises a fire-fighting cabinet. When a fire occurs, smoke enters the glass tube, a laser signal emitted by the laser generator is blocked by the smoke, the laser receiver controls the warning lamp to be turned on, and laser is scattered at the top of the photoelectric sensor along with increase of the smoke concentration; a photoelectric sensor controls a multi-stage alarm to give an alarm with corresponding frequency and volume according to the brightness degree of laser, a worker opens the fire-fighting cabinet and takes out the dry fire extinguisher to extinguish fire, in the same way, when a transparent pipe is covered with stains, a warning lamp is also turned on, a motor drives a screw to rotate, and the dry fire extinguisher is taken out; and the screw rod drives the annular cleaning block to clean the outer side of the transparent tube, so that whether the air in the area contains smoke or not can be detected, meanwhile, the glass tube for detection can be automatically cleaned, the detection sensitivity is improved, and an alarm can be given at the first time when a fire occurs.

The invention belongs to the technical field of fire-fighting quadruped robots, and particularly relates to a fire-fighting fire extinguishing system suitable for a quadruped robot, which comprises a quadruped robot, a double-layer mounting frame is arranged on the upper part of the quadruped robot, and an industrial personal computer, an edge computer and a voltage stabilizer are mounted on the first layer of the double-layer mounting frame; a direct-current power source, a switch, a positioning camera and a fire extinguisher are installed on the second layer of the double-layer installation frame, a supporting frame is further installed at the end of the second layer of the double-layer installation frame, a laser radar is arranged at the upper end of the supporting frame, and a binocular depth camera is installed on the side of the upper end of the supporting frame. The outlet end of the fire extinguisher is connected with a first pipeline, the end of the first pipeline penetrates through the partition plate of the double-layer mounting frame to be connected with a pressure stabilizer, and the output end of the pressure stabilizer is connected with a spray pipe. The unmanned aerial vehicle can keep excellent maneuverability and stability, can stably work in a high-temperature environment, effectively resists smoke interference, and easily deals with various complex terrains.

A fire extinguishing liquid is described comprising (a) one or more of a phosphate, hydrogen phosphate, dihydrogen phosphate or polyphosphate salt; (b) a carbonate or hydrogen carbonate salt; (c) a sulphate salt; and (d) an intumescent component. Methods of manufacturing the fire extinguishing liquid and fire extinguishers containing the liquid are also described. The liquid is useful for extinguishing fires, in particular lithium-ion battery fires.

The utility model belongs to the technical field of fire-fighting equipment, and particularly relates to a fire extinguisher cabinet which comprises a cabinet body, a cabinet door is hinged to the cabinet body, the interior of the cabinet body is divided into a gas mask storage area and a fire extinguisher storage area through a partition plate, and a transparent limiting cover moving up and down is arranged above a limiting supporting block in the gas mask storage area. The two ends of the transparent limiting cover are connected to the limiting guide rods on the two sides of the gas mask storage area through limiting guide blocks. A fixed clamping plate is installed in the middle of the fire extinguisher storage area, a driving structure is installed on the back face in the fire extinguisher storage area, and a movable clamping plate matched with the fixed clamping plate is arranged through the driving structure. The transparent limiting cover covers the gas mask to limit and protect the gas mask, and can be quickly reset under the acting force of the spring, so that dust is prevented from entering the gas mask; the movable clamping plate is matched with the fixed clamping plate, so that the fire extinguisher can be effectively limited and fixed, the fire extinguisher is prevented from being toppled and damaged during movement, and noise caused by movement is avoided.

The utility model discloses an aerosol fire extinguishing device with a sealing mechanism, which comprises an aerosol fire extinguisher main body, a rotating ring and a rotating ring base, the rotating ring is arranged on the outer side of the aerosol fire extinguisher main body, the rotating ring base is arranged on the inner side of the rotating ring, the inner side of the rotating ring is fixedly connected with a trigger ring, and the trigger ring is fixedly connected with the sealing mechanism. A button is arranged on the outer side surface of the aerosol fire extinguisher body, a connecting rod is fixedly connected to the upper surface of the rotating ring, and a cutting rotating ring is fixedly connected to the upper end of the connecting rod. The rotating ring and the rotating ring base are arranged, so that field personnel can quickly start the device even in the state of out-of-control emotion and tension, the device is simpler and more convenient to operate, the response time under emergency conditions is shortened, an aluminum film on the top of the sol fire extinguisher main body in a placed state can prevent dust or impurities from entering an aerosol nozzle, and the safety of the sol fire extinguisher is improved. Therefore, it is ensured that the spraying effect of the aerosol nozzle reaches an ideal effect during follow-up fire extinguishing operation.

Various embodiments of the present disclosure provide systems and methods for aerial-based firefighting using a suspended autonomous fire extinguisher.

The utility model relates to the technical field of fire extinguishers, and discloses a fire extinguisher device which comprises a box body, at least two fire extinguishers, a limiting structure and a drawing structure, wherein the limiting structure is arranged in the box body; the drawing structure comprises a drawing assembly and a sliding plate; one end of the sliding plate is connected with the drawing assembly, the other end of the sliding plate is connected to the limiting structure in a horizontal sliding mode, and the drawing-out ends of all the safety pins are connected with the drawing assembly. When the fire extinguisher needs to be used, the drawing assembly is held by a hand and pulled outwards to drive the sliding plate to slide back to the limiting structure, the pulling end of the safety pin is connected with the drawing assembly, all the safety pins are pulled out of the fire extinguisher in the outward pulling process of the drawing assembly, and then the fire extinguisher is directly taken out for use. By arranging the drawing assembly, safety pins on all fire extinguishers can be uniformly and rapidly pulled out at a time, time is saved, and therefore all the fire extinguishers in the box body can be rapidly taken out for fire extinguishing operation.

The invention belongs to the technical field of new energy safety, and relates to a battery fire extinguishing liquid, in particular to a fire extinguishing liquid for battery fire as well as a preparation method and application thereof. The fire extinguishing fluid has a fluid shearing and thinning function by adding the nano material and the rheology modifier, firstly, the fire extinguishing fluid has certain viscosity in a static state, can be effectively adsorbed on the surface of a battery, and plays a continuous cooling role; then, when the fire extinguisher is ejected and released, the fire extinguishing liquid is reduced in viscosity under the action of pressure, easy to flow, good in ejection effect and small in residual quantity. Meanwhile, by adding efficient fire extinguishing components, the fire extinguishing performance of the fire extinguishing liquid is greatly improved. The fire extinguishing liquid can be applied to inhibition and extinguishing of battery fire, and the preparation method is simple and suitable for large-scale popularization and application.