162results about How to "Improve escape efficiency" patented technology

The invention provides an intelligent escape method and an escape system based on a mobile phone. The escape method comprises the following steps: a user can acquire an indoor map and escape exit place information of a public place through the mobile phone when entering the public place; the user can open the indoor map for positioning and send positioning information to a server when a disaster takes place; the server can send an optimal escape route to the mobile phone of the user according to the position in which the user is positioned and pedestrian volume information of the escape exits. The intelligent escape method provided by the invention combines the manners of the public place indoor map and indoor positioning to provide the optimal escape route for persons in distress when the disaster takes place and improve the escape probability of the persons in distress when the disaster takes place.

The invention relates to the technical field of fire escape, in particular to a dynamic escape route generation method, a server and a dynamic escape route generation system. The method comprises thefollowing steps: generating a building information model, dividing the building information model into a plurality of building zones and escape planning routes; positioning a mobile terminal to a corresponding building partition by a non-line routing device; calculating the fire zoning by the field data of the fire information collector; according to the fire zone, the recommended escape route ofeach building zone is generated and sent to the mobile terminal in the corresponding building zone. The dynamic escape route generation method and the generation system of the invention dynamically generate an escape route for each building area and send the generated escape route to the mobile terminal located in the building area, thereby optimizing the escape route planning mode, avoiding the congestion of the escape route and improving the escape speed and efficiency.

The invention discloses a subway station fire safety egress guidance monitoring system on the basis of three-dimensional models. The subway station fire safety egress guidance monitoring system comprises an indoor BIM (building information modeling) three-dimensional simulation system, a field monitoring system, a monitoring terminal and a virtual display terminal. The virtual display terminal comprises a display module, a positioning module and an electronic compass module and is used for displaying three-dimensional navigation information and acquiring positioning information. The subway station fire safety egress guidance monitoring system has the advantages that the visualized three-dimensional models of spatial locations of the insides of subway stations are built by the three-dimensional simulation system, current locations of users and fire locations can be added into the visualized three-dimensional models according to the positioning information acquired by the virtual display terminal and monitoring information of the field monitoring system, and the three-dimensional navigation information can be formed according to egress exit guidance information transmitted by the monitoring terminal; a visualized navigation system with high reality sense can be provided for people, accordingly, quick and accurate safety egress guidance and monitoring can be provided for the users, and the subway station fire safety egress guidance monitoring system is favorable for improving the rescue and escape efficiency.

The invention discloses a fire escape method and system based on a LoRa. The method comprises the following steps: a fire detection device sending fire information to a LoRa gateway device by using aLoRa protocol when the fire is detected; the LoRa gateway device sending received real-time data information of the fire to a LoRa server; the LoRa server constructing an optimal escape route according to the real-time data information of the fire and ID information of the fire detection device; and presenting the optimal escape route to an escape person through an escape sign disposed in a fire passage. The fire information comprises the real-time data information of the fire and the ID information of the fire detection device. According to the fire escape method and the system based on the LoRa, the escape efficiency and success rate of the escape person is improved, and the search cost is reduced.

The invention discloses a smart fire scene escaping system and evacuating method for large-scale exhibition halls. The system comprises a monitoring system for obtaining the onsite information of a fire scene; a handheld terminal and a sound-and-light indication device for guiding the escape of people; and a control terminal for receiving the data from the monitoring system and issuing escape routes to the handheld terminal. The monitoring system comprises M fire detectors, N infrared cameras, and L audio frequency acquisition cards. The handheld terminal comprises a processor pre-stored with the emergency channel map for the large-scale exhibition hall. The I / O disconnection interface of the processor is electrically connected with a positioning chip. The sound-and-light indication device comprises a sound-and-light alarming device and an audio player. Each door of the emergency channel is provided with at least one sound-and-light alarming device and one audio player. Each sound-and-light alarming device and each audio player are provided with a wireless communication module respectively. The processor is provided with a wireless communication module and a display module. The control terminal comprises a main controller and a standby controller.

The invention relates to a novel foldable lifting basket applied to high-rise building escape. Multiple people can simultaneously escape, and high-rise building escape efficiency and safety are improved. The foldable lifting basket comprises a bottom plate, an aluminum alloy plate, a front-side steel wire rope, bottom plate hinge pins, a left lower side plate, a lifting ring, a left upper side plate, a buckle, a bolt, a front-side cross beam, a rear-side cross beam, a right upper side plate, a rear-side steel wire rope, side plate hinge pins and a right lower side plate. The novel foldable lifting basket has the advantages that the novel foldable lifting basket is skillful in structure and light in weight; the basket body can be flexibly unfolded and folded, so that the foldability of the lifting basket is realized, and space occupation is reduced; and the novel foldable lifting basket has the characteristics of convenient transportation, flexible operation, high reliability and the like.

The invention discloses a hydraulic resistance type tall building escape device, comprising a revolving axle, a damping rotor sheathed on the revolving axle and a winding reel sheathed on the damping rotor; wherein the two ends of the damping rotor and the two ends of the winding reel are all fixedly connected with a cover plate by virtue of bolts, the winding reel is wound with a steel wire rope used for escaping, the two ends of the winding reel and corresponding position on the cover plate are provided with a winding hole used for tying the steel wire rope, the cover plate is sheathed on the revolving axle by virtue of an axle sleeve and a rolling bearing contained in the axle sleeve, the cover plate is fixedly connected with an end cover by virtue of bolts, the revolving axle is provided with a seal ring used for sealing the revolving axle, the axle sleeve and the damping rotor, the two ends of the revolving axle are fixedly connected with a hook, and a hermitical space formed by the revolving axle, the damping rotor, the winding reel and the seal ring is injected with viscous liquid. The invention has compact structure, novel and reasonable design, operation convenience, high stability, durability and reliability, good cyclic utilization performance, low cost and strong practicability and is beneficial to popularization and application.

The invention discloses a rope escaping machine for high-rise building escape, and relates to the technical field of high-rise escape. An outer shell is included. The left side of the top end in the outer shell is fixedly connected with a supporting hanging rod. The bottom end of the supporting hanging rod is rotationally connected with a safety rope rolling roller. The bottom end of a first transmission limiting rod is rotationally connected with a first turning limiting roller. The top end of a second transmission limiting rod is rotationally connected with a second turning limiting roller.The position, close to the left side, of the bottom end in the outer shell is fixedly connected with a speed reducer. The top end of an inclined supporting rod is rotationally connected with an anglelimiting gear. A combined safety rope is wound in the safety rope rolling roller. By means of the rope escaping machine for high-rise building escape, the purposes that the situation that escape personnel tides and fixes ropes is avoided, and the escape efficiency is improved; and the escape descending speed is uniform, escape stability is guaranteed, hurt to personnel from impact force when the escape personnel lands or the safety rope is unreeled to the end is avoided, and safety of the escape machine is improved are achieved.

The invention discloses a mine disaster escape drill system and method and relates to the technical field of mine safety emergency. The system comprises a scene setting client, a drill server and at least two participating clients; the scene setting client is used for setting scene data of a disaster escape drill; the drill server is used for establishing a mine scene model according to the scenetype and calculating dynamic evolution information of a disaster; the at least two participating clients are used for displaying the mine scene model and the dynamic evolution process of the disasterby adopting a virtual simulation technology and further used for collecting operation information of participating personnel when the participating personnel perform drill with the corresponding participating clients and sending the operation information to the drill server; and the drill server is further used for synchronizing the operation information of each participating person on each participating client and the scene setting client. The mine disaster escape drill system and method in the invention have the beneficial effects that the participating personnel can quickly become familiarwith the downhole environment and the disaster evolution rule, the psychological bearing capacity of the personnel on a sudden event is trained, and therefore the escape efficiency and the success rate are improved.

The embodiment of the invention provides an Internet of Things escape guiding system for intelligent fire detection and analysis. The Internet of Things escape guiding system comprises at least one detection device, at least one guider and a background server. The detection device is used for detecting surrounding fire information of the position where the detection device is located in a buildingwhen a fire occurs, and sending the fire information to the background server; the background server is used for receiving the fire information sent by the detection device, comprehensively analyzingthe fire information, determining overall fire distribution and spreading conditions in the building, and broadcasting the fire distribution and spreading conditions to the guider; and the guider isused for receiving the fire distribution and spreading conditions, selecting a path in the building according to the fire distribution and spreading conditions, and guiding a user with the guider to escape. According to the Internet of Things escape guiding system with intelligent fire detection and analysis, an effective escape path can be obtained, and the escape efficiency is improved.

The invention relates to the field of fire extinguishing, in particular to a cold aerosol fire extinguishing device, which comprises a dry powder aqueous solution box, a carbon dioxide storage tank and a nozzle, wherein dry powder aqueous solution is stored in the dry powder aqueous solution tank, carbon dioxide is stored in the carbon dioxide storage tank, and a heating jacket covers the outer side of the nozzle. Further, the dry powder aqueous solution is a compound prepared by one or multiple of sodium carbonate, sodium bicarbonate, potassium bicarbonate, monobasic potassium phosphate, sodium chloride, potassium chloride, magnesium chloride, urea, ammonium bicarbonate and ammonium dihydrogen phosphate mixed according to an optional proportion, and is in a saturation state at minus five DEG C. The carbon dioxide storage tank is connected with the nozzle through a high-pressure pipeline provided with a valve, and the pressure of carbon dioxide at an inlet of the nozzle ranges from 7.5Mpa to 8.5Mpa. The dry powder aqueous solution tank is connected with the nozzle through a low-pressure pipeline provided with a water pump, and the pressure of dry powder aqueous solution at the inlet of the nozzle ranges from 0.35Mpa to 0.45Mpa. The mass flow ratio of water in the dry powder aqueous solution and carbon dioxide at the inlet of the nozzle ranges from 1:2.2-1:2.6.

The invention discloses a high-rise descent control device based on hydraulic damping, which comprises a main shaft, a rope and an inner cam, wherein the inner cam is arranged at the main shaft, the rope is wound on the outer cylindrical surface of the inner cam, the inside of the inner cam is provided with a hydraulic cylinder, the piston rod of the hydraulic cylinder is driven by the cam wall of the inner cam to reciprocate, and the hydraulic cylinder is connected with a damping oil way which can adjust the reciprocating speed of the piston rod. The device of the invention has the advantages that the structure is simple and compact, the stability is good, the efficiency is high, the device is safe and reliable to use, the machining and assembly process is simple, the maintenance cost is low, the application range is wide, and the like.

A prompt drop escaping system of a super high-rise building comprises fixing connecting frames and fixing piles. The fixing connecting frames are arranged on the top of the high-rise building and around a selected floor, the fixing piles are fixed to the ground, inclined escaping ropes are connected between the fixing connecting frames and the fixing piles, the escaping ropes are provided with escaping devices capable of being rapidly installed on the escaping ropes and sliding from top to bottom, the lower portions of the escaping ropes are marked with brake reaction sections used for controlling braking of the escaping devices, and air cushions are arranged below the brake reaction sections of the escaping ropes and on the ground close to the fixing piles. The prompt drop escaping system of the super high-rise building is a self-rescuing device through which escapers can fast escape according to the preset escaping point when dangerous cases happen in the super high-rise building. The prompt drop escaping system has the advantages of being higher in escaping efficiency, high in safety performance and reliability, more portable, easier to use and maintain and lower in cost.

The invention relates to the field of high building escape, in particular to a high building escape device. The high building escape device comprises a housing, a center transverse shaft, a roller, power springs, an elastic string and a handle, wherein inside the housing, the center transverse shaft is arranged at the center; the middle of the center transverse shaft is sleeved with the roller; the roller is fixed on the center transverse shaft and can rotate along the center transverse shaft; both left and right sides of the center transverse shaft are respectively connected with the power springs; the power springs retract or stretch along rotation of the center transverse shaft in different directions; one end of the elastic string is fixed on the roller; the other end of the elastic string passes through a round hole below the housing to be connected with the handle; the elastic string is made of a refractory material.

The embodiment of the invention provides a moving path planning method and device of an intelligent mobile device, a computer program, a storage medium and the intelligent mobile device. The moving path planning method comprises the following steps: acquiring the first randomly walking moving path of the intelligent mobile device and acquiring multiple impact points and moving road sections between the start position and the end position of the first moving path; creating a limited area including the end position, determining the initial attitude of a second moving path to be traveled according to the distribution situation of the impact points and the moving road sections in the limited area and controlling the intelligent mobile device to continue to walk randomly according to the initial attitude. With application of the technical scheme, the intelligent mobile device can be controlled to travel in the direction that is traveled so that the walking control strategy of the intelligent mobile device can be effectively optimized, the working efficiency of the intelligent mobile device can be improved and the efficiency of controlling the intelligent mobile device to get out of thenarrow space can be improved.

The invention discloses an escape device arranged at a rear window of a bus. The escape device is located at the back of the bus and used for solving the problem that people cannot escape through the rear windows of the existing buses. A rear window position of the bus is provided with a module mounting frame, and a module is mounted in the module mounting frame. The upper end and the lower end of the module are connected with the module mounting frame through locking mechanisms and hinging hinges. The locking mechanisms can be controlled to be opened by using electric motors. An airbag is provided in the module, and the airbag is opened to form a sloping slide according to danger situations. The lower middle part of the escape device is connected through the hinges, the upper part is connected through the locking mechanisms capable of being opened quickly, so that the escape device can be opened quickly in an emergency, the airbag is rapidly inflated by a gas generator during the opening process and forms the sloping slide, and an escape channel of the sloping slide structure guarantees high escape efficiency.

The invention provides a functional oligomer used for a non-viral gene vector material. The functional oligomer is prepared by free radical polymerization of MA-His-OMe and MAEL through taking water-soluble thio ester as a molecular weight regulating agent. In the preparation method, MA-His-OMe and MAEL are used as monomers, AIBN (2,2-azobisisbutyronitrile) or ACVA (4,4'-azobix(4-cyano valeric acid)) is used as an initiator, and CPADB (4-cyanopentanoic acid dithiobenzoate) is used as a chain transfer agent. According to the invention, the functional oligomer is mixed with a polycation material to prepare a DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) composite which is used as the non-viral gene vector material and a cell transfection experiment is carried out. The functional oligomer has the advantages that the functional oligomer has a good protection effect on plasma DNA and can be used for improving the binding action of a complex particle and a cell membrane surface and improving the escape efficiency of the plasma DNA from lysosme / endosome in a cell, thus the transfection efficiency of the complex particle on cells such as HeLa is greatly improved, and the toxicity of the functional oligomer is greatly reduced, therefore the functional oligomer is expected to reach a clinical application level.

The invention, which relates to the technical field of the firefighting system, discloses an indication system for firefighting evacuation. The system comprises an external remote monitoring platform and a plurality of network nodes in wireless connection with the remote monitoring platform. Each network node is provided with a node wireless communication module, a fire situation sensor, a node controller, and a node display, wherein the fire situation sensor, the node controller, and the node display are connected with the node wireless communication module. Compared with the prior art, the system has the following advantages: fire situation information can be transmitted in real time to the remote monitoring platform by the network nodes, the remote monitoring platform processes the fire situation information, and thus evacuation information indication can be provided for a trapped person, so that the escape rate is improved.

The invention discloses a window breaking device and a control method. The window breaking device comprises a signal receiver which is used for receiving control signals coming from a signal generator, a processor which is connected with the signal receiver and is used for analyzing the control signals to obtain window breaking commands, a triggering part which is connected with the processor and is used for triggering an executing part according to the window breaking commands to execute window breaking actions, the executing part which is used for executing the window breaking actions, and a fixing part which is used for integrating and fixing the signal receiver, the processor, the triggering part and the executing part on a glass window. By using the window breaking device, only one operation, i.e., controlling the signal generator to generate the control signals is needed and the window breaking device can automatically realize the window breaking actions; compared with complex actions such as operating a screw cap / pulling up the cap and beating the window breaking device in the prior art, the window breaking device and the control method achieve the goals of effectively and quickly opening an escape passage and improving the escape efficiency of passengers on a bus.

The invention discloses a device of escaping from a fire in a building and belongs to the technical field of fire escaping. The device comprises detecting modules, a processing module and an escaping personnel client-side, wherein the detecting modules are arranged in channels of the building so as to detect parameters used for judging whether the channels in the building are suitable for escaping; the processing module is in communication connection with the detecting modules so as to receive the parameter detection results sent by the detecting modules, judge whether all channels are suitable for escaping according to the detection results and generate escaping routes according to the judging results; and the escaping personnel client-side is in communication connection with the processing module so as to receive the escaping routes sent by the processing module. When a fire happens in a building, the device can monitor escaping environments of all channels, generates escaping routes and sends the routes to personnel in the building, so that the device can effectively improve the personnel escaping efficiency when the fire happens and greatly increase the survival rate of escaping personnel during the fire. The device is particularly suitable for fire escaping in a small range, such as a fire situation of a tall building.

The invention belongs to the field of building outdoor self-rescue escape, and relates to a single-climbing aluminum alloy folding outdoor escape ladder. A foldable inlet slow step pedal is hinged between an inlet wall-attached frame and the bottom of an inlet protective frame in an entry unit, a ladder unit comprises an upper ladder unit and the lower ladder unit, the upper ladder unit comprisesan upper ladder wall-attached frame and an upper ladder protective frame, the upper ladder wall-attached frame is fixedly installed with an upper folding ladder on the left or right side, a foldable ladder slow step pedal is hinged at the bottoms of the upper ladder wall-attached frame and the upper ladder protective frame, the lower ladder unit is fixedly installed on the upper ladder wall-attached frame and the upper ladder protective frame of the gap formed between the inlet slow step pedal and the ladder slow step pedal, the lower ladder unit comprises a lower ladder wall-attached frame installed with a lower folding ladder, and a stair protective net. The single-climbing aluminum alloy folding outdoor escape ladder solves the problems of complicated escape route setting of the existing outdoor escape ladder, poor anti-theft, inconvenient assembly and disassembly, and inability to achieve structure linkage trigger opening.

The invention provides a nucleic acid delivery carrier, a preparation method and application of the nucleic acid delivery carrier. The nucleic acid delivery carrier is a nanometer self-assembled bodyof an amphiphilic fluorinated material; and the amphiphilic fluorinated material is perfluorooctane-substituted oligomeric polyethyleneimine. According to the nucleic acid delivery carrier provided bythe invention, oligomeric polyethyleneimine and the perfluorooctane material are bonded together, and due to strong hydrophobicity of the perfluor material, not only can the nucleic acid compressingcapability of oligomeric polyethyleneimine be improved, but also the efficiency of cell endocytosis and endosome escape can be improved; positive charges of oligomeric polyethyleneimine not only can be used for electrostatic composition of siRNA, but also can utilize proton sponge effect to promote the endosome escape in the system, and by the combination of electrostatic composition of siRNA andthe endosome escape, the nucleic acid delivery carrier not only has very-high silence efficiency under the serum-free condition, but also can show very high nucleic acid delivery efficiency in the presence of serum, and is expected to be applied in gene therapy based on siRNA or DNA.

The invention relates to a fireproof and quakeproof escape slide for a high rise. The fireproof and quakeproof escape slide for the high rise comprises a spiral channel integrally formed by a bottom plate, a left side plate, a right side plate and an upper cover plate. The left side of the spiral channel is erected beside corridors of the high rise, and the right side of the spiral channel is fixed to a stand column through supports. A crash pad is arranged at the bottom of the bottom plate. Door bodies are arranged on the parts, corresponding to all floors of the high rise, of the left side plate beside the corridors of the high rise. A left handrail is arranged on the inner side of the left side plate, and a right handrail is arranged on the inner side of the right side plate. A plurality of vent holes are formed in the upper cover plate. The distance between the left handrail and the bottom plate is 0.3-0.6 m, the distance between the right handrail and the bottom plate is 0.9-1.2 m, and the width of the bottom plate is 0.5-1.2 m. The bottom plate, the left side plate, the right side plate and the upper cover plate are all made of a transparent crushproof material. The vent holes are evenly distributed in the bottom plate.

The invention provides a high-rise escape structure. Escape stairs led to each floor are arranged on escape staircases; walls used for isolating the escape stairs from the outside are arranged on foursides of the escape stairs; the high-rise escape structure is characterized in that tubular spiral sliding ways are arranged on the walls and surround the escape stairs; a spiral section is formed atevery 360 degrees of each spiral sliding way; each spiral section corresponds to two stair sections of the escape stairs; each spiral section is crossed with the middle parts of the two stair sections; escape entrances for access of people are formed in crossed parts. According to the high-rise escape structure, each spiral section of each spiral sliding way is crossed with the middle part of each stair section of each escape stair; the escape entrances are formed in the crossed parts of each floor, so that escape people can enter the spiral sliding ways from the escape entrances of differentfloors, and the escape efficiency can be improved; especially for the escape staircases with the escape stairs which are arranged as two-way escape stairs, two escape entrances arranged at the crossed part of each floor, so that multiple people can escape at the same time.

The invention discloses a personnel navigation method in a building floor, a personnel navigation method in a multi-storey building and a navigation system. The personnel navigation method comprehensively considers personnel position information and evacuation exit information, iterative solution is carried out by taking the condition of the shortest overall escape time as a solution target, and finally, an optimal evacuation path is obtained. According to the navigation method, the evacuation path can be planned more scientifically, and once an emergency occurs, the optimal evacuation path can be determined quickly according to the current personnel distribution condition; and meanwhile, each individual person can independently observe the own evacuation path, so that the escape efficiency is higher.

The invention discloses an intelligent building monitoring system. The problem that congestion is caused easily when the escape from a fire scene is performed by following the flow of people is solved. The key points of the technical scheme include that the intelligent building monitoring system includes a fire detection device, a guide flow distribution device and a control terminal which is coupled to the fire detection device and the guide flow distribution device and controls the guide flow distribution device to be started or shutdown according to a fire detection signal. Based on each fire passage, an escape area corresponding to each fire passage is divided according to the principle of proximity; based on the escape area where the guide flow distribution device is positioned, the control terminal controls the guide flow distribution device to guide people to escape from the fire passage corresponding to the escape area. The intelligent building monitoring system can automatically divide a building into a plurality of escape areas when a fire occurs, and people are guided to escape from each escape area, thereby improving the efficiency of escape.

The invention discloses a tunnel protection door with an automatic opening and closing function, and belongs to the technical field of tunnel protection door related technologies. An electric switch assembly and an automatic door opening and closing device are arranged on a hand wheel lock corresponding to the tunnel protection door, the electric switch assembly is utilized to realize automatic opening and closing of the hand wheel lock, and a door body can be opened or closed by utilizing the automatic door opening and closing door device. Automatic opening and closing of the tunnel protection door are achieved through the cooperation of the electric switch assembly and the automatic door opening and closing device. The tunnel protection door with the automatic opening and closing function is simple in structure and can be remotely controlled, and the door body can be effectively and rapidly opened or closed. By setting the priority level sequence of opening and closing control over the protection door and arranging an anti-pinch assembly and an resistance-meeting rebounding assembly, the use safety of the protection door can be greatly improved, the difficulty of door body control is reduced, the time for emergency evacuation through the tunnel protection door is shortened, the escape efficiency is improved, the operation safety of a tunnel is guaranteed, and the tunnel protection door is good in application and popularization value.

The invention discloses a high-rise building escape device. The high-rise building escape device comprises a sliding chute and spraying devices; the bottom of the sliding chute is hinged to the innerrims of stairs, and the top of the sliding chute is fastened to the inner rims of the stairs; the spraying devices are arranged on the inner rims of the stairs and above the sliding chute and providedwith valves, when the top of the sliding chute is fastened to the inner rims of the stairs, the valves can be closed, and when the top of the sliding chute is unfastened from the inner rims of the stairs, the valves can be opened and at the meantime foams or water inside the spraying devices can directly flow towards the sliding chute so that survivors can slide conveniently on the sliding chuteto improve the escape efficiency.

The invention discloses a novel stainless steel surface polishing technology, and belongs to the technical field of stainless steel processing. According to the scheme, fine polishing is performed ona stainless steel plate through a negative-pressure type cloth wheel, heat produced by friction during polishing is transmitted into a solution chamber, meanwhile, a redirection rotating ball rotatesanticlockwise to communicate with an epitaxial duct, carbon dioxide contained in a carbon dioxide aqueous solution is prompted to escape, sequentially penetrates through a gas-permeable membrane, a gas outlet hole, the epitaxial duct, the redirection rotating ball, a shunting hole and a gas inlet hole and then enters an air chamber, with continuous flowing of the carbon dioxide, the carbon dioxidecan be forced to flow back to the solution chamber, thus circulating flowing of the carbon dioxide is realized; the pressure during flowing is relatively low, so that the negative pressure is formedon the upper side of the cloth wheel; and under the action of the atmospheric pressure, metal chippings produced during fine polishing are sucked into the cloth wheel upwards, the probability of harmcaused by the metal chippings produced during polishing to the human body is reduced, and meanwhile, the reuse rate of the metal chippings is increased.

The invention discloses an automatic fire alarm device. The automatic fire alarm device comprises a room body; a water pipe fixedly penetrates through the room body; a ball valve is mounted in the water pipe; a rotating rod is fixedly connected to the lower ends of the ball valve; the rotating rod rotationally penetrates through the room body and the water pipe; the lower end of the rotating rod is rotationally clamped in a manual device; a rotating device is in gear connection with a driving gear; the driving gear is driven by a motor; the motor is fixedly mounted in the room body; the motoris electrically connected with the rotating device; the rotating device is connected with a smoke exhaust device; the smoke exhaust device is mounted in the room body; a smoke outlet is formed in oneside of the lower end of the smoke exhaust device; according to the invention, fire extinguishing treatment can be rapidly carried out after alarming; the working efficiency is improved, meanwhile, losses caused by fire disasters are reduced, two operation modes can be selected for use, the equipment starting flexibility is improved, injuries to personnel in the smoke room body are reduced, the personnel can be safer, the personnel escape efficiency is improved, and then the personnel body safety is guaranteed.