825 results about "Fire door" patented technology

The invention discloses a fireproof door combination welding device, and belongs to the technical field of fireproof door welding. A welding groove is formed in the rack, and two first storage racks and two second storage racks are arranged on the upper surface of the rack. A material pushing plate is arranged below each of the two first material storage racks in a sliding mode, and a material pulling plate is arranged below each of the two second material storage racks in a sliding mode. A door frame vertical rod and a door frame cross rod are stored through the symmetrical first material storage frames on the two sides and the symmetrical second material storage frames at the two ends correspondingly, and materials can be controlled to be pushed one by one through the material pushing plate and the material pulling plate sliding below and the first material forking groove and the second material forking groove formed in the material pushing plate and the material pulling plate. Through cooperative operation of the material pushing plate and the material pulling plate, the four door frame rod pieces (the vertical rods on the two sides and the transverse rods at the two ends) are accurately pushed into the welding grooves to be spliced into the fireproof door frame, then the welding assemblies are used for welding the connecting positions, full-process automatic operation of the fireproof door frame from material pushing, splicing positioning to welding forming is achieved, and the production efficiency is improved.

The utility model discloses an electric overturning poly V-belt roller machine, which is mounted at a fireproof door and comprises a mounting bracket, a main conveying frame arranged on the mounting bracket, an overturning bracket and a driving component for driving the overturning bracket to overturn around the main conveying frame, a plurality of main conveying rollers are rotationally installed on the main conveying frame, a plurality of auxiliary conveying rollers are rotationally installed on the overturning support, the main conveying frame and the overturning support are rotationally connected through the adjacent auxiliary conveying rollers, and the driving assembly is an electric push rod and is provided with a magnetic switch. After the electric push rod extends, the overturning support is overturned to the horizontal position, accurate conveying of goods is guaranteed, and after the electric push rod retracts, it is guaranteed that the fireproof door is completely closed. Compared with the prior art that a rotating shaft is driven by a motor to turn over, the turnover mechanism has the advantages that the structure is simplified, the cost is reduced, the assembly steps are simplified, and the turnover stop position is more accurate.

The invention relates to the technical field of fireproof equipment, in particular to an electrically-driven translation type heavy fireproof door which comprises a door body, a driving mechanism and a translation mechanism. The translation mechanism comprises a translation base and a nut sleeve, a mounting hole and a guide hole which penetrate through the two sides of the translation base are formed in the translation base, the nut sleeve and the lead screw form a thread transmission pair, the nut sleeve is rotatably mounted in the mounting hole, the guide rod is slidably connected in the guide hole, and a synchronous assembly is arranged in the translation base; when the door body moves to the tail end of the stroke, the circumferential constraint of the synchronous assembly on the nut sleeve is automatically relieved, so that the nut sleeve can freely rotate relative to the translation base. Therefore, the motor and the transmission system do not need to overcome the huge inertia of the door body to achieve forced stopping, the instantaneous load and locked-rotor risk of the motor are remarkably reduced, and meanwhile the impact stress borne by a mechanical transmission part at the terminal is greatly relieved.

The invention discloses a steel fireproof door plate polishing device, which belongs to the technical field of fireproof door plate processing, and comprises a rack, rotating rollers uniformly and rotatably mounted along the length direction of the rack, and a housing mounted at one end of the top of the rack, conveying mechanisms are arranged at two ends in the housing, and second hydraulic cylinders are symmetrically and vertically mounted on two sides of the top in the housing. A reciprocating mechanism composed of a first shaft sleeve, a first spline shaft, a reciprocating lead screw, a second sliding block, a connecting rod and a first belt wheel assembly is arranged at the end of the grinding roller, in the process that the grinding motor is used for controlling the grinding roller to rotate, the grinding roller can be controlled to reciprocate in the axial direction, and axial movement and rotation are combined; a crossed net-shaped grinding track is formed, covering is more comprehensive, surface textures are more uniform, subsequent polishing procedures are reduced, spraying or assembling requirements are directly met, in addition, the grinding roller axially moves to enable dust to be distributed more dispersedly, the dust concentration of a working area is greatly reduced in cooperation with a negative pressure dust suction mechanism, and potential safety hazards are reduced.

The invention relates to the technical field of safety control of fire exit doors, in particular to an emergency unlocking device and system of an intelligent fireproof door. The analysis subsystem outputs a fire alarm confidence coefficient value and an operation intention intensity value; the arbitration subsystem sends a blocking signal to the automatic locking control system and activates a to-be-decoupled state of the execution subsystem when the intensity of the operation intention exceeds a threshold value; the execution subsystem synchronously adjusts a mechanical transmission stroke parameter and an electromagnetic latching current parameter according to the intensity value of the operation intention; the fault-tolerant subsystem switches the mechanical locking mechanism to a geometric dead point position to release automatic control connection; and the traceability subsystem records the operation data and maintains storage when the power supply is interrupted. According to the invention, a closed-loop control chain from signal sensing to physical decoupling is formed, the problem of authority conflict of automatic locking logic blocking manual operation is solved, and the timeliness and reliability of emergency unlocking are improved.

The invention provides a remote monitoring method and system based on a fireproof door monitoring module, and relates to the technical field of fireproof safety monitoring, and the method comprises the steps: constructing a fireproof function simulation model of a building; m fireproof door monitoring modules are pre-deployed; after M pieces of real-time state information of the M fireproof door monitoring modules are collected, the function availability of the fireproof door is judged; performing dynamic evacuation path fitting after spatial mapping of the fault fireproof door in the fireproof function simulation model; according to the fireproof influence degree, operation and maintenance priority ranking of the faulted fireproof door is carried out, and a hierarchical operation and maintenance priority sequence is output. The technical problem that the operation and maintenance management efficiency of the fireproof door is low due to the fact that the influence on the whole cannot be evaluated in time when a single fireproof door fails in the prior art is solved, collective availability judgment of the fireproof door combination is performed by monitoring the state of each fireproof door in real time and based on fire escape path fitting, and the operation and maintenance efficiency of the fireproof door combination is improved. And the operation and maintenance management efficiency of fireproof door monitoring is improved.

The invention discloses an automatic closing door closer which comprises a door closer body, an automatic closing device and an auxiliary closing device. The automatic closing device is connected with an output shaft on one side of the main body and comprises a mechanical locking mechanism composed of an angle cam, a sliding block and a supporting spring and a triggering mechanism composed of a swing connecting rod, an unlocking connecting rod and an electric driving mechanism with a gear motor, the output shaft is stably locked in a normally-open state, electric unlocking is achieved when fire signals are triggered, and the automatic closing device can automatically close the output shaft. And the door leaf is automatically closed by the door closer main body. The auxiliary closing device is connected with an output shaft on the other side of the main body and comprises a cam shaft with a concave part and a trigger assisting assembly composed of a roller, a piston and a pressure spring, and when the door leaf is closed to the angle smaller than the set angle, the roller falls into the concave part of the cam, and the pre-tightened spring elastic force is released to generate auxiliary torque. According to the fireproof door, the functions of normally-open locking and releasing and door closing tail section assisting are integrated, and the automatic closing reliability and the final leakproofness of the fireproof door in a fire disaster are remarkably improved.

The present application relates to the field of door core material preparation, and particularly relates to a heat-insulating and fireproof door core material for security doors and a preparation method thereof, comprising a protective layer, a heat-insulating layer and a core part, wherein the core part comprises a plurality of springs arranged at equal intervals and fixed plates arranged at both ends of the springs; the heat-insulating layer is arranged outside the fixed plates; and the protective layer is bonded to the outside of the heat-insulating layer and is a foamed aluminum plate, which is prepared as follows: S1, cutting the fixed plates and then welding spring fixing bases and fixing buckles; S2, arranging and fixing the springs; S3, weighing the component materials of the heat-insulating layer, adding water and mixing uniformly; S4, based on a core material preparation system, sequentially completing pouring, jarring, smoothing and heat-insulating drying of the two heat-insulating layers after setting; S5, preliminarily determining whether the preparation of the heat-insulating layer meets preset standards according to the measured compressive strength; and S6, bonding the protective layer. On the basis of ensuring the performance of the core material, the present application can also be applied to the door core of security doors with different thicknesses.

The invention relates to the technical field of fire alarm, in particular to an intelligent fireproof door trigger alarm system and method, and the method comprises the steps: taking a fireproof door as a configuration unit according to a sensor disposed on the fireproof door, and obtaining the early warning data of each configuration unit; taking the early warning data as a decision basis, performing event triggering rule extraction on the early warning data on each configuration unit in a fuzzy theory mode, and identifying an event set at corresponding time during triggering; sorting according to the triggering time of each data in the event set, and extracting a state tag and an event influence range of each configuration unit according to the event duration of each sorting to form a range simulation diagram; and according to the position of each configuration unit in the range simulation diagram, the state of the configuration unit is updated according to the difference of the early warning data at the two sides of the configuration unit, an early warning path is formed by the updated configuration unit, and an early warning strategy corresponding to the early warning path is set. The efficiency and accuracy of fire early warning processing are realized.

The invention relates to a fire door remote debugging system and debugging method based on WiFi networking, and belongs to the technical field of fire door system debugging, the debugging system comprises a fire door system, a server and a client, the fire door system is connected with a network through a USB-WiFi module and comprises a fire door monitor, a fire door electric door closer and a fire door electromagnetic releaser; the server comprises a communication service module and a remote debugging service module; the client comprises a remote debugging platform and a mobile phone APP. The debugging method comprises an on-line debugging mode and an off-line debugging mode: in the on-line mode, the monitor communicates with the server through a TCP / IP protocol to realize remote parameter modification, state query and fault diagnosis; and in the off-line mode, the WiFi module is converted into a hotspot, and the mobile phone APP is directly connected and completes configuration issuing and debugging.

The invention discloses an adaptive positioning correction method for a tunnel environment, and the method comprises the steps: preliminarily restoring the position of a mobile device to a tunnel axis through inertial navigation, and employing inherent static features (such as a cable support, a fireproof door, and a duct piece joint) in a tunnel as a reference; and the automatic correction of the SLAM accumulative error is realized by measuring the distance from the feature object. And meanwhile, an intelligent filtering algorithm is adopted to effectively suppress dynamic object interference, so that the positioning precision and the system robustness are remarkably improved, and reliable technical support is provided for intelligent operation and maintenance of the cable tunnel.

The invention discloses handheld steel fireproof door fireproof performance in-situ nondestructive testing equipment and a use method, and belongs to the technical field of fireproof door fireproof performance determination. In order to solve the problems that an existing method lacks an effective in-situ nondestructive testing means and the actual fire resistance of a fireproof door in use cannot be accurately judged, handheld in-situ nondestructive testing equipment for the fire resistance of the steel fireproof door is designed, during testing, electric suction cups on the two sides of the equipment are adsorbed to the fireproof door, and a laser sensor rapidly measures the thickness of the fireproof door; the ultrasonic eddy-current sensor is used for measuring fireproof door steel plate thickness; the X-ray sensor is used for measuring the compactness of the fireproof door filling material by using the X-ray propagation time; and comparing the measured data with a qualified fireproof door to obtain the fireproof performance of the measured fireproof door. Compared with the original fireproof door sampling detection equipment and method, the equipment and method can realize portable in-situ nondestructive detection, quickly judge the performance of the fireproof door, prevent inferior products from entering the market and protect the property and life safety of people.

The utility model discloses a roadway fireproof door for a coal mine, which comprises a door frame and a door plate, the door plate is hinged on the outer wall of the door frame, a fireproof mechanism for preventing fire from spreading is arranged in the door frame, and a protection component for protecting the fireproof mechanism is arranged on the outer wall of the door frame. During use, the fireproof mechanism is installed on the door frame, when a fire occurs in a roadway, the fireproof mechanism can detect the temperature in the roadway, and when the temperature is high, the fireproof mechanism is automatically started and sprays water, so that the fire in the roadway is slowed down, meanwhile, the sprayed water can cool the door frame, and the service life of the door frame is prolonged; and by arranging the protection assembly, when the door frame and the fireproof mechanism are installed in the roadway, the humid environment in the roadway can affect the service life of the fireproof mechanism, at the moment, the protection assembly can prevent the fireproof mechanism from making direct contact with moisture, and the service life of the fireproof mechanism is prolonged.

This invention relates to the field of fire door technology, specifically a smoke-blocking fire door, including a fire door frame, a fire door body mounted on the fire door frame via hinges, a door closer connected to the top of the fire door frame at the top, a handle mounted on the fire door body, and a smoke-blocking device mounted on the fire door body. The smoke-blocking device comprises a housing, a shaking device, a plate, a foam bottle, a nitrogen cylinder, pipes, a connector, and a metal tube. This invention injects foam between the fire door frame and the fire door body. The foam from the foam bottle is injected into the space between the fire door body and the fire door frame through the metal tube. The foam expands upon contact with air, filling and sealing the space between the fire door body and the fire door frame, preventing smoke from a fire from spreading upwards through the stairwell.

The invention relates to an intelligent fire exit door state monitoring method, system and device, and the method comprises the steps: collecting magnetic field distribution data through a magnetic field induction array disposed on the contact surface of a door body and a door frame of a fire exit door, carrying out the change analysis, and obtaining the opening and closing information of the door body; performing signal filtering and feature extraction on the door body opening and closing information to generate door body state information; the door body state information is uploaded to a cloud analysis platform, safety analysis is carried out in combination with fire exit door data, and a door body evaluation conclusion is generated; and generating equipment regulation and control parameters according to the door body evaluation conclusion, and performing parameter optimization adjustment on the magnetic field induction array to obtain optimized monitoring parameters. According to the method, a complete closed-loop system from data acquisition, local processing, cloud analysis to parameter optimization can be constructed, and the accuracy, reliability and operation and maintenance efficiency of state monitoring of the intelligent fire exit door are comprehensively improved.

The utility model relates to a stainless steel glass fireproof door which comprises a door frame, a fireproof door body and a dust cleaning assembly, and the fireproof door body comprises a stainless steel door frame rotationally installed on the door frame and fireproof tempered glass installed on the stainless steel door frame. The fireproof tempered glass comprises a first glass layer, a fireproof heat insulation layer arranged on one side of the first glass layer and a second glass layer arranged on one side of the fireproof heat insulation layer, the fireproof heat insulation layer is specifically made of glass wool, and the dust cleaning assembly comprises a lifting structure arranged in the stainless steel door frame and a dust cleaning structure arranged on the front side of the fireproof tempered glass. A lifting motor drives a threaded rod to rotate, the threaded rod drives a threaded ring to move, the threaded ring drives a threaded block to move, the threaded block drives a dust cleaning plate to move, the dust cleaning plate drives a dust cleaning pad to ascend and descend, the dust cleaning pad cleans dust on the surface of fireproof tempered glass, a user does not need to conduct dust cleaning work repeatedly in a time-consuming and labor-consuming mode, and the working cost is reduced; the practicability is improved.

The application discloses an equipment room fireproof door with ventilation and smoke prevention performance, and aims to provide a reasonable structure, fire resistance, good smoke prevention performance and ventilation and heat dissipation effect, which comprises a door frame, a door leaf and a hinge, a shutter device is arranged on the middle lower part of the door leaf, the shutter device comprises a shutter frame, a plurality of movable blades which are sequentially and movably connected on the shutter frame, a linkage assembly which is connected on the movable blades, a heat-sensitive assembly which is arranged on the shutter frame and used for controlling the operation of the linkage assembly, and an elastic member which is used for providing a restoring force for the linkage assembly, one end of the elastic member is fixed on the shutter frame, and the other end is connected with the linkage assembly.

The fireproof door with the anti-pinch function comprises a door frame and fireproof door bodies, the number of the fireproof door bodies is two, glass windows are installed on the upper sides of the outer surfaces of the fireproof door bodies, and door handles are installed on the front side faces and the rear side faces of the fireproof door bodies correspondingly; three hinges are installed between the fireproof door body and the door frame, the rear side face of the fireproof door body is fixedly connected with a first buffering piece used for slowing down the closing speed of the fireproof door body, the rear side face of the door frame is fixedly connected with a second buffering piece, and one side of the outer surface of the fireproof door body is fixedly connected with a protection piece. According to the fireproof door, the rotating speed and impact force of the fireproof door body are greatly reduced through the elastic force effect of springs and torsion springs in the first buffering piece and the second buffering piece, meanwhile, the protection plate is made of silica gel and has good elasticity, the hands of a user are further protected, and accidental injuries are prevented.

This invention discloses a folding swing fire door, including a door frame. An installation groove is formed on the top inner side of the door frame, and an automatic pushing structure for automatic closing in case of fire is provided within the installation groove. Guide rail grooves are formed on both sides of the installation groove, and several sliding casters are installed within the guide rail grooves. This folding swing fire door combines the space-saving and flexible opening and closing characteristics of traditional folding doors. In the event of a fire, the generated high temperature is transferred to the automatic pushing structure through the main heat strip, triggering it to push the door open. With the cooperation of the sliding casters and guide rail grooves, the folding door is automatically pushed and closed to isolate the fire from the door frame, eliminating the need for manual risk-taking to close it.

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.

This utility model provides a fire door with ventilation function, including a door leaf, a door frame, and a ground layer. The door frame stands on the ground layer, and the door leaf is embedded in the door frame and connected to the door frame by hinges. The lower half of the door leaf is embedded with a fire-resistant device, which includes a ventilation blade frame, ventilation blades, fire-resistant blade shafts, fire-resistant blades, a temperature sensor, and a transmission mechanism. Fire-resistant blades are arranged within the ventilation blade frame by several equidistantly spaced fire-resistant blade shafts. The temperature sensor and transmission mechanism are located on one side of the ventilation blade frame. The temperature sensor is communicatively connected to the transmission mechanism, which drives several fire-resistant blade shafts to rotate synchronously, thereby opening and closing the fire-resistant blades to achieve rapid switching between normal ventilation and fire isolation functions. This utility model aims to solve the problems of poor ventilation performance, easily damaged ventilation devices, and poor fire resistance and sealing of traditional fire doors, thereby optimizing ventilation performance, improving the durability of ventilation devices, and enhancing fire resistance.

Door drive (1), in particular a door closer, with hydraulic damping, in particular for a fire door, wherein the door drive (1) comprises: a housing (3) with a housing interior in which a hydraulic fluid is provided, a functional element (7, 9) which is inserted into an opening (5) of the housing (3), and a sealing element (11) which seals the housing (3) to the outside in the area of ​​the opening (5), wherein the sealing element (11) consists at least partially of a material which has a defined melting temperature, characterized in that that the sealing element (11) is a sealing ring, that the functional element (7) comprises a circumferential outer groove (13) which receives the sealing element (11), and that the outer groove (13) of the functional element (7) has an outwardly directed support surface (15) with at least one recess (17) which acts as a flow contour for the hydraulic fluid.

The utility model relates to the technical field of fireproof door production, in particular to a corner polishing device for fireproof door production, which comprises a base, a groove is arranged at the front end of the base, a base is fixedly connected to the upper end of the base, a clamping mechanism is slidably connected to the inner wall of the base, and the outer surface of the clamping mechanism is movably connected with the base. Two supporting columns are fixedly connected to the upper end of the base, and adjusting mechanisms are fixedly connected to the upper ends of the two supporting columns. The corner polishing device for fireproof door production can adapt to fireproof doors of different sizes and shapes, the universality and practicability of equipment are improved, it can be guaranteed that the positions of the fireproof doors are stable in the polishing process, and therefore the polishing precision and the corner processing flatness are improved, hand holding is not needed, and the production efficiency is improved. And the working intensity of a user is reduced.

The utility model provides a belt protection fireproof door, and relates to the technical field of fireproof doors, the belt protection fireproof door comprises a material passing device, a gate and an anti-sticking device, the gate is installed on the surface of the material passing device, the anti-sticking device is arranged on the surface of the material passing device, the anti-sticking device comprises a water storage tank, the water storage tank is arranged on the surface of the material passing device, and the anti-sticking device is arranged on the surface of the material passing device. A water inlet pipe is fixedly connected to one side of the material passing device and communicated with the water storage tank, a water adding hopper is fixedly connected to the surface of the water inlet pipe and communicated with the water inlet pipe, and a supporting frame is fixedly connected to the surface of the material passing device and fixedly connected with the surface of the water inlet pipe. According to the anti-sticking device, due to the fact that the anti-sticking device is arranged, the situation that materials of the belt adhere to the gate can be reduced, the situation that the fireproof door is stuck is reduced, the using convenience of the fireproof door is improved, and the attractiveness of the gate is improved.

This utility model discloses a deformation-resistant steel fire door, comprising a steel fire door body, a front panel, a rear panel, and a heat insulation shell. The front and rear panels are arranged in parallel. A positioning groove is provided on the inner side of the rear panel. The heat insulation shell is disposed inside the positioning groove, and its opening is bent outward to form a flange extending into a buffer space and fitted with a sealing frame. The front panel has multiple countersunk holes, and screw holes are provided on the flange and the rear panel directly opposite the countersunk holes. Buffer bolts for fixing the front and rear panels together are threaded into the corresponding screw holes and countersunk holes. This utility model has a simple structure. The steel fire door consists of a front panel, a rear panel, and a heat insulation shell. The heat insulation shell reduces heat transfer, greatly reducing the probability of the front panel deforming due to high temperatures. Furthermore, the front and rear panels are replaceable; if any one panel deforms, only the damaged panel can be replaced, avoiding the need for complete replacement and reducing costs.

The utility model discloses an automatic turn-over processing device for fireproof door plates, which relates to the technical field of fireproof door plate processing and comprises a rotary turn-over machine, a master controller is fixedly mounted at the top end of one side of the front surface of the rotary turn-over machine, and a rotary adjusting disc is rotatably connected to the side surface of the rotary turn-over machine. And the top end of one side of the rotary adjusting disc is fixedly connected with a connecting shaft. By arranging the interior of a plate buckle limiting groove, a fireproof door plate needing to be machined is directly inserted into the plate buckle limiting groove, the position of a telescopic connecting column in a fixed connecting disc is adjusted by adjusting an auxiliary handle according to the actual length of the fireproof door plate, then the position of a movable connecting disc is adjusted, and length installation of the fireproof door plate can be better adapted; and the main controller directly controls the rotating angle of the rotating adjusting disc, the rotating angle of the fixed connecting disc and the rotating angle of the movable connecting disc can be directly adjusted, the overturning operation of the fireproof door plate is achieved, and the overturning flexibility of the device is further improved.

The utility model discloses a bending device for fireproof door and window processing, and relates to the technical field of fireproof door and window processing equipment.The bending device comprises a rack, a processing table is fixedly installed on the upper surface of the rack, a bending mechanism is fixedly installed on the upper surface of the top of the processing table, and adjusting assemblies are fixedly installed on the left side and the right side of the upper surface of the bottom of the processing table; a first bottom die and a second bottom die are arranged on the opposite sides of the machining table, and the first bottom die is located on the left side of the second bottom die. The two first air cylinders work simultaneously to drive the first top plate, the connecting sleeve and the triangular die head to move downwards, so that the triangular die head presses a part downwards and is matched with the first groove in the first bottom die to extrude and form a bent part, the bending purpose is achieved, and bending machining of the bent part of the fireproof door and window can be completed; the two second air cylinders and the first air cylinders are arranged, the bending strength can be increased, the bending quality of fireproof doors and windows is improved, and different bending machining requirements are met through cooperation of the triangular die head, the flat die head, the first bottom die and the second bottom die.

The utility model relates to the technical field of fireproof door processing, and discloses a cold-pressing gluing device for a wooden heat-insulation fireproof door, which is characterized in that a groove matched with a fireproof door frame in size is formed in the upper surface of a lower die, so that the fireproof door frame can be positioned in the cold-pressing process, and the fireproof door frame is prevented from being damaged. Therefore, the shape and the size of the fireproof door frame filled with the flame-retardant material are prevented from being changed in the cold pressing process. In addition, through holes are formed in the bottoms of the grooves, flame-retardant materials are injected into the filling cavity of the fireproof door through the through holes, and the situation that air is mixed into the flame-retardant materials to form gaps, and the filling effect is affected can be avoided. And meanwhile, flame-retardant materials can be injected into the multiple fireproof door filling cavities through the through holes at the same time, so that the flame-retardant materials in the fireproof door filling cavities can be uniformly diffused, the filling uniformity of the flame-retardant materials is ensured, and the flame-retardant materials are prevented from sputtering. The two steps of filling and cold pressing can be continuously carried out, equipment does not need to be replaced, and therefore the production quality and efficiency are improved.

This invention relates to the field of fire door monitoring technology, and discloses a sensor-based fire door status monitoring and early warning system and method. The system includes a target sensor, an execution parameter generation module, an execution module, a protection module, a sensor status monitoring module, an internal information acquisition module for the protection module, an environmental information acquisition module, and an analysis module. The system analyzes external environmental information data, internal information data, and status information data from the protection module to obtain protection parameters, ensuring effective protection of the target sensor. Based on the analysis of the internal information data of the protection module, a reliability level is obtained. Then, based on the reliability level analysis, the working strategy of the execution module is determined. The system can automatically switch the execution module to manual adjustment mode when the reliability level of the target sensor is low due to fire damage, avoiding inappropriate or even dangerous actions by the execution module caused by erroneous data collected by the target sensor.

The utility model discloses a steel-wood passive type low-energy-consumption fireproof door, and relates to the field of steel-wood fireproof doors. A door body of a traditional steel-wood fireproof door is mostly of an integrally-formed steel structure, steel is high in heat conductivity, heat is easily conducted through the door body, and a large amount of energy in a building is lost. The thermal insulation door comprises a steel frame and a door leaf, clamping edges are arranged on the periphery of the door leaf, the steel frame comprises a rear frame and a front frame, thermal insulation partition materials are arranged between adjacent positions of the rear frame and the front frame, the clamping edges comprise a rear clamping edge and a front clamping edge, and thermal insulation partition materials are arranged between adjacent positions of the rear clamping edge and the front clamping edge. A waterproof breathable film is arranged on the outer side of the heat preservation layer, and a heat insulation base plate and a waterproof vapor-proof film are arranged on the inner side of the steel frame and adjacent wall surfaces. The heat insulation partition materials are arranged between the steel frame and the clamping edges, a heat insulation bridge structure is formed, the heat conduction path through the steel frame and the clamping edges is cut off, the heat insulation capacity of the steel-wood fireproof door is improved, indoor and outdoor heat exchange is reduced, the indoor temperature can be kept stable, and building energy consumption is reduced.