202 results about "Fire protection engineering" patented technology

The invention discloses a fire alarm linkage system for fire engineering based on the Internet of Things. The operation process of the system specifically comprises the following steps: generating a dynamic risk probability distribution diagram based on a building three-dimensional point cloud model and multi-source data, and deploying a differential sensor array; environment multi-physical field parameters are collected in real time through a differential sensor array, and a multi-mode fire behavior sensing signal set is generated; building a fire situation credibility map: calling a multi-criterion decision module to calculate a linkage equipment weight distribution matrix based on the fire situation credibility map, and generating a multi-stage linkage control instruction set in combination with the building topological structure model and the personnel distribution thermodynamic diagram; and performing multi-cross-system cooperative execution and closed-loop optimization. The method has the following advantages and effects that the inherent limitation of a traditional system can be broken through by constructing an intelligent prevention and control framework combining risk quantification, situation deduction and decision closed loop, the personnel evacuation efficiency is effectively improved, and damage caused by major accidents such as detonation is reduced.

The utility model discloses a water belt winding device for fire engineering, which belongs to the technical field of winding devices and comprises a base, two sliding plates are slidably mounted at the top end of the base, supporting frames are fixedly mounted on the sides, close to each other, of the two sliding plates, and two moving square blocks are slidably mounted in the two supporting frames. Sliding rods are rotatably mounted on one side of the moving square block, the same rotating rod is slidably mounted on the outer sides of every two adjacent sliding rods, a connecting block is fixedly mounted on one side of each rotating rod, sliding grooves matched with the connecting blocks are formed in the rotating rods and one sides of the sliding rods, and second springs are fixedly mounted in the sliding grooves. Automatic winding of the water hose is achieved through driving of the motor, the physical burden of firefighters is greatly relieved, the working efficiency is improved, the water hose winding device can adapt to water hoses with different widths and thicknesses through cooperation of the width adjusting assembly and the transmission extrusion assembly, efficient and stable winding operation is achieved, residual water in the water hose is discharged, and the water hose winding device is convenient to use. The service life of the water hose is prolonged.

The invention discloses a method and device for evaluating the operation health degree of an automatic fire alarm system, and relates to the technical field of fire engineering. In the method, a server obtains real-time operation state event data, historical maintenance data and historical repair data of each device of the automatic fire alarm system, obtains a standardized data set through screening, preprocessing and supplementing device attribute information, and inputs the standardized data set into a preset evaluation model to calculate a health degree quantitative value of each device. Sequentially calculating a loop health degree evaluation value, a host health degree evaluation value and a state level; and finally calculating an overall health degree evaluation value of the system. By implementing the technical scheme provided by the invention, comprehensive, dynamic and quantitative evaluation of the health state of the automatic fire alarm system is realized, and the accuracy and efficiency of system operation and maintenance are remarkably improved.

The invention relates to the technical field of fire protection engineering, and discloses a multifunctional experiment platform for fire extinguishing agent flow state observation and pressure testing, the multifunctional experiment platform comprises at least one liquid storage pressurization unit, a multi-section experiment pipeline unit, a flow state observation unit and a data acquisition and control device, the multi-section experiment pipeline unit comprises a nozzle and a test experiment pipe; the flow state observation unit comprises a transparent closed box body and a closed observation cavity; wherein the test experiment pipe comprises a straight pipe experiment section and / or a bent pipe experiment section and / or a reducing experiment section, the straight pipe experiment section comprises at least two straight pipes, the bent pipe experiment section comprises at least one bent pipe, and the reducing experiment section comprises at least two reducing pipes. According to the multifunctional experiment platform, the vertical layout conforms to the natural flow direction of fluid, the structure is stable, the test experiment pipe is modularly designed, the test is flexible and efficient, the whole system is visible, controllable and high in recordability, and the experiment efficiency and safety are greatly improved.

The utility model discloses a fire-fighting device for fire-fighting engineering, and relates to the technical field of fire-fighting devices, the fire-fighting device comprises a base and a smoke alarm, the smoke alarm is clamped on one side of the base, both sides of the middle of one end of the smoke alarm are fixedly provided with insertion rods, and the middle of one end of each insertion rod is provided with a notch. According to the utility model, when the smoke alarm is overhauled, the two pressing rods are pressed to extrude inwards, the spring shrinks, the limiting block and the limiting rod move and are separated from the notch and the chute, and the alarm can be taken down for overhauling after the limiting is cancelled; the pressing rod needs to be pressed to drive the spring to contract, the limiting block deviates to one side, the pressing rod is loosened after the inserting rod makes contact with the bottom, the spring is reset, the limiting block and the limiting rod are clamped in the sliding groove and the limiting groove respectively, and then installation can be completed, the time of a maintainer staying at a high position is shortened by simplifying the disassembling and installing process, and safety is improved.

The utility model relates to fire engineering technical field especially fire engineering is with preventing deformation's heat -proof fire door, including door frame, still including door shell and door lock component, door frame one side fixedly connected with door shaft, door frame one side fixedly connected with door shaft, the material that this device adopts through door shell is steel sheet to improve the strength of door, prevent deformation, the material that fills the layer adopts is magnesium oxide to improve the heat -proof of door, through being provided with first fire -retardant expansion seal and second fire -retardant expansion seal on door frame and door shell, thereby the door gap is sealed, improves the leakproofness, can effectively block the flue gas, through first spring drive movable block in the inside slide of guide block, movable block drive toothed plate removal, toothed plate drive gear rotation, gear drive first rotation axis rotation, first rotation axis drive second connecting rod rotation, second connecting rod drive first connecting rod in the inside rotation of fixed block, thereby the door shell is automatically closed, prevents the fire, flue gas spreads.

The invention discloses a fast charging station fire real-time monitoring prediction and automatic suppression system, and relates to the technical field of fire protection engineering and safety, and the system comprises a chain reaction interruption module which comprises a solid free radical quencher release unit preset between battery modules, the micro-fluidic gas analysis chip is used for detecting the early-stage characteristic gas of the thermal runaway of the battery; the distributed emergency energy scheduling module is connected with the direct current bus of each charging pile and is used for directionally scheduling the electric energy of the adjacent charging piles which are not influenced to a fire fighting system during fire early warning; and the cross validation prediction engine is used for identifying an abnormal state that a single sensor may fail to report through comparative analysis based on the synchronous sensing data of the plurality of charging piles in the same charging cluster. The technical problems that monitoring and early warning are lagged, security holes exist in dependence on power supply of a main power grid, the single-point data false report and missing report rate is high, and the battery thermal runaway chain reaction is difficult to effectively block due to extensive fire extinguishing means in the prior art are solved.

The utility model discloses a pipeline installation device for fire-fighting engineering, and particularly relates to the field of fire-fighting pipeline installation, the pipeline installation device comprises a movable frame and a butt joint seat fixedly installed at the top end of the movable frame, the top end of the butt joint seat is movably connected with an adjusting mechanism, the adjusting mechanism comprises a motor, and one side of the motor is fixedly connected with a different-direction lead screw. The adjusting mechanism and the output end of the motor drive the incongruous lead screw to rotate, then the cross frame on the incongruous lead screw moves to achieve lifting, the height of a fire fighting pipeline is adjusted, the height is kept consistent, installation work is completed, meanwhile, the hydraulic push rod pushes the upper limiting movable rod and the lower limiting movable rod to move in the opposite directions, and the installation efficiency is improved. Therefore, direct butt joint of the fire-fighting pipelines is more precise, the fire-fighting pipelines can be welded and installed more easily, height adjustment in the fire-fighting pipeline installation process is facilitated, meanwhile, length adjustment in the horizontal direction can be conducted, and the fire-fighting pipeline installation rapidness is improved.

The utility model discloses a fire-fighting equipment storage device for fire engineering, including storage box, the movable lid is equipped with the hinge between the storage box side, the movable lid one side is equipped with the lock between the storage box, the storage box below is equipped with a plurality of pulleys, the storage box one side is equipped with a plurality of moving holes, the storage box is equipped with a plurality of support grooves to the inside one side of moving hole, the support groove is equipped with a plurality of springs in the inside, the inside movable joint of storage box has a plurality of support plates, the upper surface of support plate is close to the side of lock and is equipped with the adjusting groove all, the inside fixed connection of adjusting groove has the threaded rod all, the upper surface movable joint of support plate has a plurality of clamping plates, the lower side of clamping plate is close to the end of lock and is equipped with the moving plate all, the side of moving plate all is equipped with the round hole, and the both sides of moving plate all are equipped with adjusting device, the utility model discloses when using can fix the equipment of different size.

The utility model relates to the technical field of fire-fighting engineering earthquake resistance, and discloses a fire-fighting vertical pipe earthquake-resistant sliding support with a self-locking function, which comprises an upper connecting frame, the inner wall of the upper connecting frame is provided with a sliding groove, the inner wall of the sliding groove is in sliding connection with a first sliding block, and the inner wall of the first sliding block is in sliding connection with a second sliding block. A connecting column is fixedly connected to the outer wall of the first sliding block, a first connecting groove is fixedly connected to the outer wall of the second sliding block, a rotating ring is rotatably connected to the outer wall of the connecting column, a fixing plate is fixedly connected to the outer wall of the rotating ring, and a hoop is fixedly connected to the outer wall of the fixing plate. According to the utility model, the first sliding block and the second sliding block are spliced and slide and then move along the sliding chute in the upper connecting frame, the connecting column is arranged on the outer side of the first sliding block, the outer side of the connecting column is rotatably connected with the fixing plate, and the fixing plate is connected with the hoop, so that the hoop can be fixed on the upper connecting frame.

The utility model relates to the technical field of fire-fighting engineering, in particular to a fire-fighting alarm wire harness laying anti-drag pulley block tool which comprises a support and a supporting unit, the supporting unit comprises a supporting plate, a trapezoidal sliding seat, a connecting plate, an adjusting bolt, a rotating shaft, a limiting plate, a bevel wheel, a rolling assembly and a mounting assembly, and the limiting plate is fixedly connected with the rotating shaft. During use, the support is fixed into a bridge through the mounting assembly, the trapezoidal sliding seat is slid to move in the trapezoidal sliding groove and then is fixed in cooperation with the adjusting bolt, then the fire alarm wire harness sequentially bypasses the bevel wheel to make contact with the rolling assembly, the rolling assembly is used for reducing the friction coefficient of the fire alarm wire harness, and the friction coefficient of the fire alarm wire harness is reduced. When the fire alarm wire harness is pulled, the bevel wheel can rotate on the outer side wall of the rotating shaft, the pulling stability of the fire alarm wire harness is guaranteed, the contact between the fire alarm wire harness and the support is limited through the mode, the abrasion condition is reduced, and the service life of the fire alarm wire harness is prolonged.

The invention relates to the technical field of fire engineering, in particular to a fire water supply and fire extinguishing system which comprises a water supply unit, a fire extinguishing unit and a control unit. The water supply unit comprises a fire pool and a main water pump set, the input end of the main water pump set communicates with the fire pool through a water inlet pipe, and the output end communicates with the fire extinguishing unit through a main water supply pipeline. The fire extinguishing unit comprises at least one group of fire extinguishing assemblies, and the fire extinguishing assemblies communicate with the main water supply pipeline and are used for spraying fire extinguishing media to a fire area; the control unit comprises a controller, and the controller is electrically connected with the main water pump set and used for controlling starting, stopping and output pressure of the main water pump set. The water supply unit is further provided with a pressure stabilizing assembly which is connected between a water inlet pipe of the main water pump set and the main water supply pipeline in parallel. The pressure stabilizing assembly connected between the water inlet pipe of the main water pump set and the main water supply pipeline in parallel is additionally arranged on the water supply unit, the pressure of the main water supply pipeline can be maintained within the preset range in real time, and pressure fluctuation caused by starting and stopping of the main water pump set is effectively avoided.

The utility model discloses a pipeline hoisting device for fire engineering construction, and relates to the technical field of fire engineering construction. The fire engineering construction pipeline hoisting device comprises a trolley, a clamping mechanism and a bearing mechanism, two sets of sliding rods are fixedly installed at the top of the trolley, the two sets of sliding rods are jointly and movably sleeved with a movable plate, a hoisting plate is fixedly installed on the outer surface of the front side of the movable plate, the clamping mechanism is arranged at the top of the hoisting plate, and the clamping mechanism is used for clamping a pipeline; the bearing mechanism is arranged on the hoisting plate and comprises a rectangular frame and bearing rollers, a rectangular groove is formed in the hoisting plate in a penetrating mode, the rectangular frame is arranged in the rectangular groove, and at least two sets of bearing rollers are rotationally installed between the inner walls of the front side and the rear side of the rectangular frame. According to the fire engineering construction pipeline hoisting device, through the bearing mechanism, when the pipelines are fed and discharged, the pipelines can be supported by the bearing rollers, a user can directly slide the pipelines to achieve taking and placing, and the practicability of the device is improved.

The application relates to the field of firefighting technology, and provides a firefighting engineering robot installation system based on a multi-modal model, which comprises an installation mechanical arm, a task analysis module, a space modeling module, a layout planning module, an action control module and a quality verification module; the task analysis module is used for analyzing an installation task, fusing multi-modal inputs of drawings and BIM models, extracting key information and outputting structured task instructions; the space modeling module performs three-dimensional structure modeling on a construction site to form a space point model, identifies building components and a constructible area, completes high-precision registration of drawing structures and real scenes, and analyzes environmental constraint conditions; the layout planning module generates a firefighting equipment layout scheme on the basis of meeting specification requirements according to the task instructions and the space point model; the action control module converts the layout scheme and the type of installed firefighting equipment into a sequence of action instructions executable by the robot; and the quality verification module automatically detects an installation result.

The utility model discloses a fireproof testing device for heat insulation board production, relates to the technical field of fireproof testing of heat insulation boards, and aims to solve the problems that an existing fireproof testing device for heat insulation board production is affected by a clamping assembly in the testing process, the two sides of a heat insulation board are heated unevenly, and detection data are affected. According to the utility model, the direct contact area between the clamping assembly and the insulation board is reduced as much as possible, so that the influence of the clamping plate on the test is reduced, and in the test process, the insulation board clamping assembly can drive the insulation board to turn over in the switch assembly, so that different surfaces of the insulation board are baked, and the condition that the insulation board is heated in multiple directions in a real fire can be simulated; the fireproof performance of the insulation board in an actual fire scene can be reflected more accurately, evaluation one-sidedness caused by single-side testing is avoided, a scientific basis can be better provided for building design, fire engineering and the like, and reasonable application of the insulation board in different places and environments is guided.

The application belongs to the technical field of portable fire fighting, and specifically discloses a fire extinguishing device for fire engineering, which comprises a fire extinguisher tank body, a transportation module is arranged at the bottom of the fire extinguisher tank body, a back-wearing module is arranged on the side surface of the fire extinguisher tank body, a fixing module is arranged on the outward side of the back-wearing module, a storage cavity for fire extinguishing agent is arranged in the fire extinguisher tank body, a fire extinguishing agent input module is arranged at the bottom of the side surface of the fire extinguisher tank body, and a pressurizing module is arranged above the same side of the fire extinguisher tank body, i.e. the same side of the fire extinguishing agent input module. The application has multiple advantages: first, the fire extinguishing agent supplementing module is additionally arranged, so that the fire extinguishing agent can be conveniently filled, and the endurance of the device is improved; second, the auxiliary breaking module is arranged, so that the problem of the fire scene barrier blockage can be solved, and the breaking and fire extinguishing operations are realized in cooperation through the snap ring, so that the application range of the device in complex fire scenes (such as scenes with collapsed objects and closed doors and windows) is expanded.

The utility model discloses a fire-fighting trolley for fire engineering relates to the field of fire protection. The fire-fighting trolley for fire engineering, including sliding load board and the multiple assembled material frame of setting at the top of sliding load board. The fire-fighting trolley for fire engineering, through placing the fire-fighting article to the multiple assembled material frame inside, then will material frame in turn stack in the top of sliding load board, so that the fixed insertion strip movable insertion of hollow bottom plate front end is in the fixed groove, at this time through the outward pull of movable bolt, make locking spring be compressed, then will rotating strip and rotate, make movable bolt directly opposite fixed hole, then loosen movable bolt, under the action of locking spring movable bolt enters fixed hole inside and fixes, thereby conveniently stores and carries in the transportation process of fire-fighting article, also can avoid falling in the transportation process.

The utility model relates to the technical field of fire protection engineering, and discloses an anti-blocking type fire protection smoke exhaust device which comprises a filter box, and the two opposite sides of the filter box are fixedly connected with a smoke inlet pipeline and a smoke outlet pipeline correspondingly. According to the anti-blocking type fire-fighting smoke exhaust device, by arranging fastening bolts, when a top cover is mounted, people place the top cover in a mounting frame, after placement is completed, people screw a plurality of rotating blocks and move a plurality of fastening bolts to the top of the top cover, and after moving is completed, people rotate a plurality of fastening bolts and push an extrusion block to move downwards; the bottom of an extrusion block is clamped in an extrusion hole, a plurality of fastening bolts are screwed, through the pressing design of the fastening bolts, sealing of the cover plate can be enhanced, smoke leakage can be prevented, meanwhile, under the action of a convex sealing strip and a concave sealing strip, tight contact can be formed between the top cover and the mounting frame, the sealing effect is further improved, and smoke is prevented from escaping.

The utility model relates to fire engineering technical field, concretely is a kind of emergency drainage device for fire-fighting equipment, including base, one floating plate is respectively installed in the both sides of base by pivot, the side of floating plate is equipped with mounting groove, the inside installation of mounting groove has air bag, the top of base is fixed with waterproof control box, one inflation telescopic pipe is respectively communicated in the both sides of waterproof control box, one end of inflation telescopic pipe extends into mounting groove inside and is connected with air bag inside.The utility model can drive two floating plates to deflect by the extension of two first cylinder output ends, so that the air bag installed in the side of floating plate is contacted with water surface, then the inflator installed in waterproof control box inside fills gas into the inside of air bag by inflation telescopic pipe, so that air bag volume expands, so that two air bags produce buoyancy and make the whole device float on water surface, avoid device to be submerged by accumulated water and appear fault when using, improve pumping efficiency.

The utility model relates to the technical field of fire engineering, and disclose a kind of welding device for fire engineering, including base and moving seat, further include: the sleeve welded in the top of moving seat, sleeve surface three sides are all through the sleeve of being provided, the inner wall of sleeve is slidably connected with movable column, three places in the inside of sleeve are all provided with clamping plate, movable column and clamping plate are mutually bolted;The utility model is through the first hydraulic rod to make its output shaft elongation or shorten, to drive connecting sleeve, connecting rod and moving plate move in horizontal direction, to change the position of movable column inside chute further, let movable column drive clamping plate move towards the middle side of sleeve, pipe is implemented stable clamping, and by adjusting the distance of first hydraulic rod output shaft elongation or shorten, the distance of clamping plate and sleeve center can be adjusted, for adapting to the pipe of different outer diameter, improve the applicability of the device.

The utility model relates to the technical field of fire-fighting engineering, and discloses an auxiliary support for water and electricity installation in fire-fighting engineering, which comprises a supporting plate and an upper clamping plate, and further comprises a first fixing lug welded on the surface of the upper clamping plate, a positioning bolt is arranged on the inner sides of the first fixing lug and the second fixing lug in a penetrating mode, and a nut is in threaded connection with the lower portion of the surface of the positioning bolt; the fixing rods are welded to the two sides of the supporting plate, and the surface of the fixing rod on one side is in bolted connection with a bearing seat; through the arrangement of the supporting plate, the upper clamping plate, the first fixing lug, the second fixing lug, the clamping plate, the rotating column, the bearing seat and other structures and the cooperation of the positioning assembly, the support can effectively fix and support the turning part of the fire-fighting pipeline, the stability and firmness of supporting the fire-fighting pipeline are improved, and the fire-fighting pipeline is convenient to use. The situation that the turning part of the fire-fighting pipeline is suspended is avoided, and the part of the pipeline is effectively prevented from deforming.

This utility model relates to the field of fire protection pipeline technology, and in particular to a fire protection pipeline fixing bracket for fire protection engineering installation. It includes a hanging component, a lower clamp, an upper clamp, and a safety rope. Two hanging components are arranged side-by-side. A lower clamp is installed between the bottoms of the two hanging components, and an upper clamp is slidably connected between the two hanging components. The upper and lower clamps are joined to form multiple clamping cavities. A safety rope is connected between the bottom ends of the two hanging components. This utility model fire protection pipeline fixing bracket has a reasonable design. It utilizes the multiple clamping cavities formed by the joining of the upper and lower clamps to meet the batch fixing needs of multiple fire protection pipelines. When it is necessary to separate the upper and lower clamps, the fastening screws are loosened first, and then the upper clamp can be moved upwards, rotated, or tilted vertically to detach it from the hanging component, facilitating the installation or replacement of fire protection pipelines. Simultaneously, because the lower and upper clamps use a multi-point connection method, the probability of fastening failure due to vibration is reduced.

The utility model discloses a kind of fire engineering branch pipe storage feeding machines, it is related to fire engineering branch pipe feeding technical field, including bottom box and fixedly arranged in the storage bin of bottom box side portion, the top of bottom box is fixedly provided with two symmetrically arranged guide cover, two guide covers are rotatably provided with two symmetrically arranged shafts between, shaft wall is fixedly provided with synchronous wheel, transmission is provided with synchronous belt between longitudinal two synchronous wheels, the outer wall of synchronous belt is fixedly provided with multiple interval arrangement's pusher component, the bottom of bottom box and storage bin is fixedly provided with bottom plate, fixedly provided with mounting plate between adjacent two bottom plates, the top of mounting plate is fixedly provided with electric push rod, the output shaft of electric push rod is inserted into bottom box and fixedly provided with push plate.The utility model can be used when needing to use when storing fire branch pipe, branch pipe is stably pushed to higher position to be taken, integrates storage and feeding function, improve the use effect of device.

The utility model relates to the technical field of smoke prevention and exhaust devices, and discloses a smoke prevention and exhaust device for fire engineering, which comprises an exhaust pipe, a fixed cover is fixedly mounted at the top of the exhaust pipe, a shell is arranged in the fixed cover, and a fixed block is fixedly mounted at the top of the shell. Dust in smoke can be effectively blocked through the filter screens installed at the two ends of the shell, so that the draught fan is prevented from being damaged, the control block is pushed towards the left side of the movable groove, the control block can drive the fixing block to enable the shell to move towards the left side, then the limiting block is pulled up, the shell can be directly separated from the fixing cover, and the fan is prevented from being damaged. After the shell is moved out of the fixed cover, a second spring can push a stop block, and a clamping block moves outwards, so that the connecting cover and the filter screen at the two ends of the shell can be directly taken out from the shell, and the filter screen can be quickly disassembled and is convenient to clean and maintain; the problem that the bolts are difficult to disassemble and assemble after the filter screen is fixed by conventional bolts due to dust and greasy dirt erosion is avoided.

The utility model relates to the technical field of fire-fighting engineering, and discloses a fire-fighting water pipe connector for fire fighting, which comprises a first connector, the surface of the first connector is fixedly connected with a main flange plate, and the first connector and a second connector are pre-positioned through bolt installation of the main flange plate and an auxiliary flange plate. When the main flange plate is inserted into the auxiliary flange plate, an inserting rod in the reinforcing mechanism is inserted into the shaft rod under the action of a vertical spring, shaking of the shaft rod is effectively prevented, and therefore the stability of connection between the main flange plate and the auxiliary flange plate is enhanced; the multiple fixing mode can effectively avoid the phenomenon that the pipeline shakes and disengages under the conditions of water flow impact, external force pulling and the like, avoids the situation that the pipeline is unstable in connection, and improves the connecting stability of the main flange plate and the auxiliary flange plate. And the problems of water leakage and joint breakage in the fire extinguishing process are solved.

The utility model relates to the technical field of fire-fighting engineering, in particular to a fire-fighting pipeline mounting rack for fire-fighting engineering, which comprises a base and a mounting mechanism for fixing a fire-fighting pipeline, the mounting mechanism comprises a mounting seat, supporting seats are fixedly mounted on the mounting seat, a movable clamp is mounted between the two supporting seats, a threaded rod is fixedly mounted at one end of the movable clamp and penetrates through the mounting seat, a nut is mounted on the threaded rod in a threaded manner, and the nut is rotatably mounted on the supporting seats. According to the fire-fighting pipeline fixing device, the threaded rod drives the movable clamp to descend by rotating the nut, the fire-fighting pipelines are clamped through the movable clamp and the supporting seat, the fire-fighting pipelines with different diameters can be fixed, the fixing process is simple, and the fixing efficiency is improved.

This invention relates to the field of energy-saving induction LED emergency lighting technology for fire protection engineering, and discloses an energy-saving induction LED emergency lighting device for fire protection engineering, including a fixed plate, an installation opening on the surface of the fixed plate, a moving device on the surface of the fixed plate, a lifting device on the surface of the fixed plate, and a fixing device on the surface of the fixed plate. The moving device includes a movable support plate. This invention allows the movable lifting and fixing rod to move the movable plate left and right on the surface of the movable rod, enabling the induction lamp to fully adjust its lighting range. The telescopic rod makes its position more stable during movement. Simultaneously, the movable lifting pulley moves up and down on the inner wall of the lifting groove, causing the fixed ring and the telescopic rod to move up and down. Pulling the ring sleeve causes the telescopic rod to retract back and forth, making it easy to fit onto the surface of the lifting and fixing rod. At the same time, when the lifting pulley moves up and down, it drives the lifting support plate up and down through the force rod, allowing for full height adjustment.

The invention relates to the technical field of fire engineering, in particular to an indoor rapid smoke exhaust device and method for fire engineering, which comprises a smoke exhaust fan, an exhaust pipe communicated with the smoke exhaust fan, a fire damper fixed at one end of the exhaust pipe and a fire damper controller mounted at the top of the fire damper, and further comprises a smoke exhaust fan, a smoke exhaust fan and a smoke exhaust fan, the surface of the ventilation pipeline is communicated with a hollow pipeline and is fixedly provided with a bracket; according to the device, flue gas can be cooled so that indoor flue gas can be rapidly exhausted in a short time, the hollow pipeline which does not need to exhaust flue gas can be sealed, meanwhile, when the device exhausts flue gas, the fan can be driven to rotate through air flowing, flue gas exhaust is accelerated through the fan, and the flue gas exhaust efficiency is improved. The smoke exhaust device for the fire protection engineering solves the problems that when part of smoke exhaust devices for the fire protection engineering are used, smoke cannot be exhausted when the temperature of the smoke is high, the smoke is prone to being influenced by idle smoke exhaust pipes when exhausted, and therefore the overall smoke exhaust speed is influenced.

The utility model discloses an underground fire-fighting engineering ventilation device which comprises a ventilation pipeline, an air inducing device used for inducing air is arranged at the lower end in the ventilation pipeline, and the underground fire-fighting engineering ventilation device further comprises a conversion assembly. The conversion assembly comprises a plugging ball, a stop lever and an inclined table, symmetrically-distributed branch openings are formed in the left end and the right end of the outer arc face of the ventilation pipeline, branch pipes are arranged between every two vertically-adjacent branch openings, the two branch pipes are arranged in a vertically-staggered mode, separation nets are arranged in the two branch pipes, the adjustable plugging ball is arranged in the ventilation pipeline, and the stop lever is arranged on the upper portion and the lower portion of the ventilation pipeline. The left end and the right end of the blocking ball are each provided with a blocking rod, the left side and the right side of the inner arc face of the ventilation pipeline are each provided with an inclined table, the two inclined tables are symmetrically arranged in the vertical direction, and the blocking rods are matched with the vertically-adjacent inclined tables. And the underground fire engineering ventilation device is ensured to play a ventilation role all the time.

The application relates to the technical field of fire engineering, and discloses a fire alarm linkage method based on heterogeneous devices, which comprises the following steps: encapsulating field fire alarm information to obtain a host initial alarm signal; performing field semantic analysis on the host initial alarm signal to obtain structured alarm information; performing protocol conversion on the structured alarm information to obtain unified alarm information; identifying the first type of fire alarm host model based on the unified alarm information; mapping the unified alarm information with preset bottom map points to obtain alarm point positions and device identifiers. According to the alarm point positions, the device identifiers and the host model, linkage control instructions are generated; the linkage control instructions are decomposed into device action instructions, and the second type of fire alarm host is used to start the fire-fighting equipment based on the device action instructions to obtain device linkage feedback signals. The application further discloses a fire alarm linkage system based on heterogeneous devices, a device and a storage medium. The application can improve the linkage level of the fire-fighting equipment.