307 results about "Fire protection engineering" patented technology

The invention relates to the technical field of fire-fighting engineering, and discloses a real-time fireproof monitoring data transmission system for fire-fighting engineering construction, which comprises a fire parameter analysis module, an environmental data analysis module, a fire source positioning module, a model construction module and a safety database. The fire parameter analysis module generates a temperature change record table through gridding temperature measurement nodes, estimates the smoke diffusion rate, and evaluates the thermal stress and deformation risk of the building structure; the environment data analysis module associates the air velocity with the smoke diffusion rate and corrects the parameter weight of the evaluation model; the fire source positioning module generates a fire source three-dimensional positioning map by using multispectral imaging equipment; the model construction module constructs a dynamic fire assessment model according to multi-dimensional data and outputs a comprehensive threat level; the security database stores building material parameters, historical case characteristics, and dynamic threshold rules. According to the system, through multi-module cooperation and multi-data fusion, the accuracy and timeliness of fire-fighting monitoring are improved, and the system is suitable for safety management of fire-fighting engineering.

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 invention discloses a fire-fighting non-destructive detection method based on multi-modal detection, and relates to the technical field of fire-fighting engineering, and the method comprises the following steps: carrying out the rapid scanning of fire-fighting equipment through an ultrasonic array, analyzing and positioning a suspected defect region based on a time domain reflection signal, and generating a three-dimensional coordinate mapping model; and performing multi-angle X-ray projection acquisition on the positioning area, and generating an internal structure cross-sectional image through a three-dimensional reconstruction algorithm. According to the fire-fighting non-destructive detection method provided by the invention, by integrating various technical means such as ultrasonic array scanning, X-ray tomography, thermal imaging analysis and microwave sealing detection, comprehensive and accurate identification of potential defects of fire-fighting equipment is realized, and the dimensionality and precision of defect detection are improved; the structural integrity of the equipment is kept to the maximum extent, extra risks caused by destructive detection are avoided, and the reliability and accuracy of detection are improved through a data fusion algorithm.

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 discloses a pipeline detection device for fire engineering, and relates to the technical field of pipeline detection, the pipeline detection device comprises a detection table, and the surface of the detection table is provided with a pipeline limiting mechanism and a nondestructive detection mechanism; the nondestructive testing mechanism comprises two movable transverse frames, the ends, away from each other, of the two movable transverse frames are fixedly connected with longitudinal supports, and testing rods are arranged on the surfaces of the longitudinal supports in a sliding mode. The nondestructive detection mechanism and the pipeline limiting mechanism are arranged on the surface of the detection table, so that when the quality of a pipeline used in fire engineering is detected, an ultrasonic thickness gauge probe on the surface of a detection rod can be used for carrying out ultrasonic thickness detection on the inner wall of the pipeline; meanwhile, the pipeline is driven to rotate on the surfaces of the supporting rollers under the action of a pipeline limiting mechanism, so that different positions of the inner wall of the pipeline are continuously detected, the inner wall of the pipeline is conveniently, comprehensively and fully detected, and the nondestructive detection efficiency and accuracy of the pipeline are 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 invention provides a model selection method and device for a fire-fighting pipeline compensator, and relates to the technical field of fire-fighting engineering pipeline safety. The method comprises the following steps: establishing a pipeline fluid-structure coupling model based on a fire-fighting pipeline and an existing compensator; the static deformation quantity of an existing compensator is calculated through a pipeline fluid-structure coupling model; obtaining the pressure variation of the fire-fighting pipeline in unit time, and updating the static deformation quantity based on the pressure variation of the fire-fighting pipeline to obtain a dynamic deformation quantity; and determining the type of the compensator to be replaced according to the dynamic deformation quantity. According to the invention, accurate model selection of the compensator can be realized.

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 relates to the field of fire-fighting spraying, and discloses an embedded spraying device for fire-fighting engineering, which comprises a spraying head body, the upper end of the spraying head body is fixedly connected with a corrugated pipe, the top end of the corrugated pipe is fixedly connected with a threaded neck, and the outer wall of the threaded neck is in threaded connection with a protective shell. A lifting seat is fixedly connected to the lower end of the corrugated pipe, a protection structure is arranged in the protection shell and comprises a tension spring, a sliding groove is formed in the inner wall of the protection shell, a sliding block is arranged in the sliding groove, an insertion rod is slidably connected to the inner wall of the protection shell, and the outer wall of the insertion rod is sleeved with a spring. A positioning hole is formed in the surface of the sliding block, a relieving assembly is arranged in the protective shell, and a protective auxiliary assembly is arranged in the protective shell. According to the utility model, the protection structure is arranged, so that the spraying device can be embedded and protected and then can be repeatedly used, and the cost is reduced.

The utility model relates to the technical field of fire-fighting engineering equipment, and discloses a fire-fighting cabinet for fire-fighting engineering, which comprises a cabinet body, an object placing plate is arranged inside the cabinet body, a threaded sleeve is rotatably connected inside the top end of the cabinet body, and a threaded rod is rotatably connected inside the threaded sleeve. The bottom end of the threaded rod is fixedly connected with the middle of the top end of the storage plate, a fixing block is fixedly connected to one side of the top end of the cabinet body, a rotating rod is rotatably connected to the interior of the fixing block, a rotary knob is fixedly connected to one end of the rotating rod, and a first bevel gear is fixedly connected to the other end of the rotating rod; a second bevel gear is connected to the lower portion of the first bevel gear in an engaged mode and fixedly connected with the top end of the threaded sleeve. Through the cooperation of the object placing plate, the threaded sleeve, the threaded rod, the rotating rod, the rotary knob, the first bevel gear and the second bevel gear, the effect of adjusting the storage space in the fire-fighting cabinet is achieved, and therefore the fire-fighting cabinet can adapt to fire-fighting instruments with different heights.

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 water hose winding device for fire engineering. The water hose winding device comprises a supporting frame and a winding mechanism. The support frame is mounted on the transportation carrier; the winding mechanism is installed on the supporting frame. The winding mechanism comprises a mounting plate, a turntable, a winding shaft, a motor I, a fixing frame and an electric push rod I; a circular groove and a through hole are formed in the supporting frame; the through hole is communicated with the circular groove; the mounting plate is rotationally connected into the circular groove of the supporting frame, and a clamping groove is formed in the mounting plate; the turntable is clamped and connected in the clamping groove of the mounting plate; a pair of winding shafts are arranged, are respectively fixed on the turntable and penetrate through the mounting plate; the fixing frame is fixed on the mounting plate; the electric push rod I is fixed at one end of the fixing frame away from the mounting plate; the motor I is fixed on an output shaft of the electric push rod I; the water hose winding device prevents the water hose from being misplaced in the winding process, and ensures that the wound water hose is flat; and metal joints at the two ends of the water hose are prevented from being clamped on one side of the extrusion roller, so that the water hose between the winding mechanism and the water squeezing mechanism needs to be manually wound.

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 belongs to the technical field of fire fighting, and particularly relates to a fire fighting pipeline fixing device for fire fighting engineering, which comprises a support rail, a rail groove is arranged in the middle of the support rail, a pair of screw rods are slidably connected to the bottom of the rail groove, nuts are in threaded connection with the middles of the screw rods, and a first support plate is mounted in the middles of the pair of screw rods. A connecting groove is formed in the middle of the first supporting plate, the pair of lead screws is slidably connected to the middle of the connecting groove, a pair of partition plates are installed above the lead screws, first connecting plates are arranged in the middles of the partition plates, the lead screws penetrate through the first connecting plates, and a connecting hole is slidably connected between the pair of first connecting plates; the connecting holes are made of heat insulation materials, through the structure, different numbers of fire fighting pipelines with different diameters can be conveniently supported and fixed, and the application range of the device is widened.

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 discloses a fire-fighting engineering fire-fighting pipeline installing and fixing structure which comprises an adjusting column, a supporting rod, a connecting rod, second channel steel, a first arc-shaped sleeve and a second arc-shaped sleeve, the interior of the adjusting column is fixedly connected with the supporting rod through a bolt, and the two sides of the bottom end of the supporting rod are fixedly connected with first T-shaped blocks through bolts; a first rotating shaft is arranged at the bottom end of the first T-shaped block, a first steel channel is rotatably connected to the bottom end of the first rotating shaft, a first connecting plate is fixedly connected to one side of the first steel channel through a bolt, a second rotating shaft is arranged at one end of the first connecting plate, and a second connecting plate is rotatably connected to the outer wall of the second rotating shaft; and the bottom end of the first arc-shaped sleeve is fixedly connected with a second arc-shaped sleeve through a bolt. Compared with the prior art, the fire-fighting pipeline mounting and fixing structure has the advantages that the height of the fire-fighting pipeline mounting and fixing structure can be adjusted, and the dark yellow pipeline can be limited.

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 application discloses a kind of multichannel asynchronous regulation and control dynamic non-uniform temperature field prying dress combustion device and method, it is related to fire engineering and civil engineering technology cross technical field, including multichannel asynchronous regulation and control non-uniform temperature field combustion system, AI intelligent iterative control system, modular integrated system, multimodal monitoring system and multidimensional wind field simulation system;Combustion system's multichannel combustion car integrates multiple groups of independent gas, wind pipeline, realizes gas, air equivalent uniform distribution supply by multistage symmetry shunt structure;Combustion car shell surface is arranged several combustion groups, and combustion group is configured main combustion nozzle and center premixing combustion nozzle;AI system self-adapting optimization gas valve opening and fan inclination angle;Modular prying dress unit integrates gas supply, distribution control and explosion-proof fire extinguishing device;Combined with multimodal monitoring system and matrix axial flow fan, the coupling effect of dynamic non-uniform temperature field and environmental wind field in building, tunnel, bridge and other scenes can be accurately reproduced.

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 invention discloses a fire alarm device for office building safety of fire engineering based on an internet platform, and relates to the technical field of fire alarm. The fire alarm device for office building safety of fire engineering based on the internet platform comprises a fire alarm box, a smoke sensor is assembled on the outer side of the fire alarm box, a controller is assembled in the fire alarm box, a servo motor is assembled in the fire alarm box, and the controller is connected with the servo motor. The bottom of the servo motor is in transmission connection with a rotating rod; and an alarm assembly is arranged in the fire alarm box. According to the fire alarm device for office building safety of fire engineering based on the internet platform, when a smoke sensor detects smoke, a servo motor can be started through a controller, and a rotating rod, a first hydraulic bin, a second hydraulic bin, an elastic telescopic plate, a sliding block, an arc-shaped push rod, an arc-shaped stress rod, a baffle and an elastic telescopic rod are matched; the buzzer is moved out of the fire alarm box, corresponding alarm operation is carried out, and the alarm effect of the device in use is improved.

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.