373 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 invention relates to the technical field of integrated control devices, in particular to a fire engineering power system integrated control device which comprises a fixed bottom frame, an integrated control cabinet is fixedly connected to the top end of the fixed bottom frame, and an integrated control unit is fixedly connected to the interior of the integrated control cabinet. A cabinet door is rotationally connected to the outer wall of the integrated control cabinet body, a touch panel is connected to the outer wall of the cabinet door in an embedded mode, the touch panel is electrically connected with the integrated control unit, and air exhaust and dust removal mechanisms are arranged at the two ends of the integrated control cabinet body correspondingly. The air exhaust fan can be driven to exhaust hot air in the integrated control cabinet body to the outside for ventilation and heat dissipation, meanwhile, after the heat dissipation effect of the air exhaust fan is reduced and the temperature continuously rises, cold air is generated and cold air cooling is carried out in a saltpeter ice making mode, so that the temperature of the integrated control cabinet body is rapidly reduced, and stable work of the integrated control unit is guaranteed.

The invention discloses a tunnel fire data generation method based on a generative adversarial network, and belongs to the crossing field of civil engineering disaster prevention and reduction, fire protection engineering and artificial intelligence. A generative adversarial network architecture is designed, a bidirectional LSTM network module and Wasserstein distance loss are introduced, and measuring point temperatures, flue gas concentrations and flow velocity data under different fire source positions, powers and longitudinal jet fan wind speeds in a tunnel are collected for network training. Wherein the bidirectional LSTM can help the network to better capture the time sequence information of the data, and the Wasserstein loss can enable the gradient change of the network to be smoother, so that the mode collapse phenomenon is reduced, and the network training stability is improved. Compared with a traditional data expansion means, the method can accurately and quickly generate tunnel fire data under different working conditions, avoids tedious and time-consuming numerical simulation work, and realizes efficient and high-precision expansion of the tunnel fire database.

The utility model relates to the field of fire-fighting engineering, and discloses a combinable smoke exhaust pipeline structure for fire-fighting engineering, which comprises a smoke pipe and a hoop, the smoke pipe is a sectional pipeline, the hoop is sleeved at a smoke pipe connecting port, the hoop is fixedly connected with a hanging bracket, a slot is arranged on the outer wall of the hoop, and the hanging bracket is fixedly connected with the smoke pipe connecting port. And combined section steel is welded to the top end and the bottom end of the outer wall of the smoke pipe. According to the combinable smoke exhaust pipeline structure for the fire engineering, the hoops are arranged, the pipelines are combined and installed in a segmented connection mode, the pipe opening of each section of smoke pipe is aligned with the hoops to be inserted into the hoops, the combined steel on the outer walls of the smoke pipes can be inserted into the limiting steel on the inner walls of the hoops from the inserting grooves in the hoops and embedded into the limiting steel on the inner walls of the hoops, and transverse clamping is formed to prevent the smoke pipes from shaking during installation; and then connecting bolts are driven in to connect the combined section steel with the limiting steel, so that through tight connection with the hoop, the connection stability is improved, the smoke pipes can be combined and installed according to the requirements of the number and the length to form a long-distance smoke exhaust pipeline, and the problem that connection is affected by disassembly and assembly is solved.

The invention discloses a hydraulic lifter for a fire-fighting pipeline, and relates to the technical field of fire-fighting engineering equipment.The hydraulic lifter comprises a hydraulic lifter body of a rectangular frame structure, and the outer wall of the bottom end of one side of the hydraulic lifter body is fixedly connected with a lifting cabin used for bearing a lifted object; the outer wall of the side, close to the lifting cabin, of the hydraulic lifting device body is rotationally connected with a clamping ring used for clamping and locking a load structure, balance reset mechanisms are arranged on the outer sides of the inner walls of two clamping vertical plates, an inclined buffering mechanism is arranged on the inner wall of the lifting cabin, and an abrasion-resistant coating mechanism is arranged at the center of the outer wall of the clamping ring. The first clamping block and the second clamping block are matched with each other, the balance reset mechanism can ensure that a pipeline placed on the hydraulic lifting device body is kept balanced, left-right skewing is avoided, meanwhile, the pipeline can be kept in a horizontal state, and the installation stability is ensured; and secondly, the balance reset mechanism can prevent the pipeline from inclining in the movement process of the balance reset mechanism.

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 relates to the technical field of fire-fighting engineering operation and maintenance, in particular to a fire-fighting equipment engineering maintenance method and system based on digital twinning. Performing data processing on the collected state data to obtain real-time state data of each fire-fighting device; synchronizing real-time state data of each fire-fighting device to the initial state digital twin model through a data interface to realize model state updating, and obtaining a real-time state digital twin model of the fire-fighting device project; comparing the initial state digital twinborn model with a real-time state digital twinborn model, and judging the performance state of each piece of fire-fighting equipment in the fire-fighting engineering area at a preset time node; and generating equipment maintenance early warning information according to the performance state of each fire-fighting equipment in the fire-fighting engineering area at the preset time node. According to the invention, efficient maintenance of fire-fighting equipment engineering is realized through a digital twinning technology, and the risk of fire-fighting equipment failure can be effectively reduced.

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 alarm, in particular to an anti-blocking fire alarm device and method for fire engineering, and the device comprises a housing, and the interior of the upper end of the housing is provided with a mounting plate and a buckle assembly; a supporting ring is fixedly connected to the middle inside the shell, a second mounting disc is fixedly connected to the upper end of the supporting ring through bolts, a power mechanism is arranged at the upper end of the second mounting disc, a reciprocating swing mechanism is arranged at the lower end of the second mounting disc, and the lower end of the reciprocating swing mechanism is located at the lower end outside the shell; a second filter screen is fixedly connected into the lower end of the shell. A cleaning brush and a fixing assembly are arranged at the lower end of the shell. The lower end of the second mounting disc is fixedly connected with a circuit board. The lower end of the circuit board is fixedly connected with a sensor and a buzzer. The upper end of the second mounting disc is fixedly connected with a storage battery. When the second filter screen is cleaned, manual cleaning is not needed, meanwhile, the passing rate of smoke is increased, and smoke particles in air can be better detected by an inductor.

The utility model relates to the technical field of fire-fighting engineering, and discloses a fire-fighting pipeline butt-joint device which comprises a base, the top of the base is slidably connected with a sliding plate, the top of the sliding plate is fixedly connected with a butt-joint plate, the right side of the butt-joint plate is provided with a butt-joint hole, and the butt-joint plate is provided with a clamping and fixing mechanism. The clamping and fixing mechanism comprises a supporting block, a supporting plate and a sliding block, and the supporting block is fixedly connected to the top of the sliding plate. According to the pipeline fixing device, the sliding plate, the butt joint plate and the clamping and fixing mechanism are used in cooperation, the supporting block and the supporting plate are used for supporting a pipeline, the sliding strip slides to drive the sliding block to slide, and therefore the sliding block drives the clamping plate to move to clamp and fix the pipeline, and pipelines of different sizes can be fixed to the butt joint plate; and butt joint of fire-fighting pipelines of different sizes is facilitated, and practicability is improved.

The invention discloses a water supply method and system for a high-rise building fire, and relates to the related field of fire-fighting engineering.The method comprises the steps that a target high-rise building is divided into a plurality of fire-fighting subareas according to a fire-fighting water supply mode; obtaining a target disaster situation fire-fighting zone where a fire occurs; acquiring the combustion area of the target disaster fire-fighting zone, and determining the target fire scene water consumption based on the combustion area; obtaining a target fire scene water supply scheme based on a fire disaster fire-fighting water supply analyzer according to the target disaster fire-fighting zone and the target fire scene water consumption; and carrying out fire-fighting pipe network water supply of the target high-rise building based on the target fire scene water supply scheme. The technical problem that an existing high-rise building fire water supply method lacks scientific basis and accurate calculation, and consequently the water supply efficiency is not high is solved, and the technical effects that a scientific and reasonable water supply scheme is generated, and then the water supply efficiency is improved are achieved.

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 belongs to the technical field of fire-fighting engineering, and discloses a fire-fighting engineering smoke exhaust device which comprises a mounting frame, a fire-fighting pipeline connected with the mounting frame and a filter screen arranged at the end of the fire-fighting pipeline, and a plurality of mounting plates are distributed on the inner wall of the fire-fighting pipeline at equal intervals; a conical plate is arranged on the side wall, close to the filter screen, of the mounting plate, and a detection assembly used for detecting the blockage condition of the filter screen is arranged on the fire fighting pipeline. The method has the effect of reducing the difficulty of judging the service life of the filter screen by workers.

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.