36results about "Gasproof doors" patented technology

The utility model provides a sliding door for a clean room, and relates to the technical field of clean room sliding doors. A fixed door plate is fixed to the door frame, a fixed plate is installed at the rear end of the door frame through bolts, a welding rod is welded to the fixed plate, and a first seat and a second seat are installed at the upper end of the welding rod through bolts; when the left side of the movable door plate collides with the door frame, the squeezing button is squeezed rightwards, the second elastic piece is squeezed and gets close to the first elastic piece at the moment, and the sweeping strip moves downwards at the moment, so that the movable door plate is driven to be closed. The silica gel strip at the lower end of the sweeping strip is in close contact with the lower end of the door frame, so that a gap between the movable door plate and the lower end of the door frame is completely blocked, a completely-sealed space is formed in the purification chamber, and the clean state of the internal space of the purification chamber is guaranteed; the sliding door can be suitable for different door crack sizes by adjusting the extrusion button.

The utility model relates to the field of fireproof windows, in particular to a fireproof sealing sliding window which comprises a window frame, a ventilation opening is formed in the window frame, a fireproof window sash is arranged on the window frame in a sliding mode, and a set of guide rails used for guiding the fireproof window sash to seal or open the ventilation opening are arranged on the window frame. The moving direction of the fireproof window sashes is inclined to the plane direction of the fireproof window sashes, the fireproof window sashes can abut against the corresponding ventilation openings, fireproof sealing strips are arranged on the sides, facing the ventilation openings, of the fireproof window sashes, and locking assemblies used for locking the fireproof window sashes to the ventilation openings are arranged on the window frame. Flames are effectively prevented from spreading, smoke is effectively prevented from passing through the window, and the fireproof sealing performance of the window is improved.

The utility model discloses a transverse side-opening rail type concealable delivery window which comprises a box body, an ultraviolet lamp, a punching net, a rail, a moving assembly, a dustproof assembly and a cleaning assembly. An ultraviolet lamp is arranged on the box body, the dustproof assembly is arranged at the bottom end of the ultraviolet lamp, holes are formed in the punching net, the rails are welded to the two sides of the box body, grooves are formed in the rails, the moving assemblies are connected to the two sides of the box body through the grooves, push-pull grooves are formed in the end sides of the rails, and the cleaning assembly is clamped to the rails through the push-pull grooves. By arranging the moving assembly, the transfer window door can translate on the track, the track is provided with the balls, transmission is more convenient, the transfer window is provided with the sealing strips, the sterile state can be kept, the occupied space of the translation door is small, and the closing opening is attractive; the dustproof cover is arranged on the ultraviolet lamp to prevent dust of the ultraviolet lamp, and the dustproof plate is arranged on the track, so that when the delivery window is opened, the dustproof plate is ensured to be in a sterile state, and the delivery window is in a sterile state when being in contact.

The invention relates to a lower frame automatic lifting door which comprises a door frame and a door leaf and further comprises a transmission assembly, the transmission assembly can bear acting force and move in the horizontal direction when the door leaf is closed, and the transmission assembly can relieve the acting force and reset in the horizontal direction when the door leaf is opened. The driving assembly is connected with the transmission assembly, and when the transmission assembly moves or resets, the driving assembly is driven to rotate; and the lower frame assembly is connected with the driving assembly, and the driving assembly drives the lower frame assembly to descend or ascend when rotating. The problem that an existing door with a lifting structure cannot achieve automatic lifting of a lower frame assembly when the door is opened and closed can be solved.

This application relates to an impact-resistant double-layer air-raid shelter door, belonging to the technical field of double-layer air-raid shelter doors. The main body of the double-layer air-raid shelter door includes an outer door panel, a front door panel, a rear door panel, and two slots. The rear door panel is fixed inside the right slot, and the rear end of the front door panel is connected to the left slot. The front wall of the cavity of the left slot is provided with an anti-pressure component. The anti-pressure component includes multiple sets of connecting blocks, multiple sets of compression blocks, multiple sets of buffer springs, a connecting rod fixedly installed on the opposite side of the upper and lower connecting blocks, and a pressing rod fixedly installed and hinged to the front end of the two compression blocks in the same set. This impact-resistant double-layer air-raid shelter door, by providing an anti-pressure component, can mitigate the impact force received by the double-layer air-raid shelter door, reducing the probability of deformation or even damage due to impact force, thereby increasing the service life of the double-layer air-raid shelter door. It can buffer the impact force in stages to further improve the buffering performance and facilitate the maintenance and repair of the anti-pressure component.

The utility model relates to the technical field of anti-theft doors, and discloses an aluminum alloy fireproof anti-theft door which comprises a main body mechanism and an auxiliary mechanism, the auxiliary mechanism is located at the outer end of the main body mechanism, and the main body mechanism comprises an aluminum alloy door frame, an aluminum alloy door leaf, rock wool, a perlite fireproof plate, aluminum silicate fibers and a door lock. The aluminum alloy door leaf is movably installed on the inner side of the aluminum alloy door frame, the rock wool is fixedly installed in the aluminum alloy door leaf, the perlite fireproof plate is fixedly installed on the inner side of the rock wool, the aluminum silicate fibers are fixedly installed in the perlite fireproof plate, and the door lock is fixedly installed in the aluminum alloy door leaf. According to the aluminum alloy fireproof anti-theft door, the rock wool, the perlite fireproof plate and the aluminum silicate fibers are arranged in the aluminum alloy door leaf, fire spreading can be effectively prevented, the fireproof performance of the door is improved, the safety of the door is improved, and then the practicability of the aluminum alloy fireproof anti-theft door can be improved.

The application belongs to the technical field of fireproof and heat-insulating glass, and particularly relates to a fireproof and heat-insulating glass and a preparation process thereof, which comprises assembling frames, a glass body, reinforcing plates and fireproof and heat-insulating sponges, wherein the assembling frames are provided in pairs, the glass body is clamped on the inner walls of the assembling frames, the reinforcing plates are arranged between the two assembling frames and are connected through the reinforcing plates, and the fireproof and heat-insulating sponges are installed on the reinforcing plates; special tempered glass or fireproof glass is selected as a base material, the strength of the glass plate can be maintained at high temperature, the glass plate is subjected to mechanical processing and edge grinding treatment, the safety and compatibility of the component are ensured, the developed fireproof and heat-insulating sponge material has excellent heat-insulating property, can protect the structure from high temperature, adopts a hollow sandwich design to block heat and flame propagation, improves the fireproof performance, forms a closed system preventing smoke penetration through edge sealing and surface reflection coating, effectively reduces heat transfer, and realizes efficient heat insulation.

The application discloses a protective closed door and a control method thereof. The protective closed door comprises a door leaf hinged to a wall body, a driving mechanism installed on the wall body, a locking support mechanism arranged on the door leaf, a detection device interlocked between the driving device and the driving mechanism, a first locking component and a movable beam at the bottom of the door leaf synchronously driven by the driving device through a transmission assembly. When the driving mechanism drives the door leaf to close, the driving device drives the first locking component to extend and be inserted into the second locking component on the wall body, and drives the movable beam to extend and be pressed into the sealing baffle on the wall body. When the driving device drives the first locking component and the movable beam to retract, the driving mechanism drives the door leaf to open. The protective closed door is used at the entrance of a protective project, and can realize electric and manual operations. The locking support mechanism can realize the functions of door leaf locking, anti-rebound, door sill support and bottom sealing simultaneously.

The utility model discloses a rapid smoke sealing device for fire fighting. The rapid smoke sealing device comprises a device frame and a baffle, the device frame is pre-arranged in a wall body, and a through groove of the device frame corresponds to a door or a window in position; the interior of the device frame is hollow to form a containing groove, and the blocking plate is arranged in the containing groove. Mounting cavities are formed in the upper portion and the lower portion of the containing groove and the through groove correspondingly, and transmission structures are arranged in the mounting cavities. The blocking plate is arranged at the transmission end of the transmission structure, the blocking plate is driven by the transmission structure to move, and then closing and opening of the through groove are achieved. The frame of the device is embedded into a wall body in advance and is flush with the surface of a building at ordinary times, when a fire occurs, environmental data are monitored in real time through the temperature sensor and the smoke sensor, closing and alarming of the barrier plate are controlled through the control main board, and the gold disposal time at the initial stage of the fire is effectively shortened.

This invention provides a sliding sealing door for chemical fiber production equipment, solving the safety hazard caused by the excessive load on the hydraulic cylinder when opening existing sealing doors. The door includes a sealing frame composed of four L-shaped angle steel bars. A lower sliding door slide plate is fixedly installed on the bottom inner surface of the sealing frame near its inner edge. A lower sliding door is slidably mounted on the lower sliding door slide plate. A raised square steel bar located outside the lower sliding door slide plate is fixedly installed on the bottom inner surface of the sealing frame. An upper sliding door slide plate is fixedly installed on top of the raised square steel bar. An upper sliding door is slidably mounted on top of the upper sliding door slide plate, above the lower sliding door. The bottom surface of the upper sliding door is in contact with the top surface of the lower sliding door. Both the lower and upper sliding doors are equipped with a sliding drive mechanism. This device, by replacing the original hinged sealing door with a sliding sealing door, avoids the safety hazard caused by the excessive load on the hydraulic cylinder during opening and closing.

The present invention relates to a sealing device (6) between a wall of a sash (2) and a wall of a frame (3), which comprises two semi-rigid seals (11, 12) spaced apart and a flexible seal (13) placed between the two semi-rigid seals and associated with one (12) of the two semi-rigid seals. In a cross-sectional plane, the semi-rigid seals have a block shape having a first length, and the flexible seal has a tongue shape having a second length, greater than the first length, and an end portion (13b) extending beyond the semi-rigid seal to which it is associated. Closing the sash compresses at least one semi-rigid seal between the wall of the sash and the wall of the frame and bends at least one flexible seal towards its end portion.The sealing device includes a compression system (15) configured to regulate the pressure to a first value P1 in the space (14) between the individual semi-rigid seal (11) and the flexible seal (13). Figure for the abbreviation: Figure 1.

The utility model discloses a mechanical smoke-proof curtain device which comprises a door frame, a roller shutter assembly is installed on an upper frame body, curtain cloth is wound on the roller shutter assembly, and the tail end of the curtain cloth is connected with a handle installed between a left frame body and a right frame body in a sliding fit mode. A pressing plate is movably installed on the left frame body and the right frame body, an operation assembly is arranged on the handle, and the operation assembly is connected with the pressing plate through a linkage mechanism. Through the structural design, the pressing effect of the pressing plate on the curtain cloth is controlled through the simple linkage mechanism, stepless adjustment of the curtain cloth is achieved, and the curtain cloth adjusting device is simple in structure, flexible to operate and capable of adapting to various fire scenes.

The present invention discloses a smoke-proof device, comprising: a support assembly, a pressure supply assembly and a blocking assembly, wherein the blocking assembly comprises a blocking bearing and a blocking member, the pressure supply assembly is arranged on the support assembly, the blocking bearing is connected to the pressure supply assembly, and the blocking member is arranged on the blocking bearing; wherein the pressure supply assembly transmits power to the blocking bearing, the blocking bearing drives the blocking member to move together, and the blocking member extends to the outside of the support assembly. The present invention also discloses a smoke-proof door. Through the coordinated use of the support assembly, the pressure supply assembly and the blocking assembly, the pressure supply assembly provides power to the blocking bearing, so that the blocking bearing can move relative to the support assembly. At the same time, the blocking bearing also drives the blocking member to move together, and finally the blocking member moves to the outside of the support assembly, occupying the space around the support assembly. When used on a door, the blocking member and the door frame abut against each other to form a seal, thereby preventing the entry of thick smoke during a fire and buying more rescue time for trapped people.

The utility model relates to the field of purification doors, and particularly discloses an automatic translation purification door which comprises a first door plate, a second door plate and a purification door back plate, a mounting shell is fixedly connected to the upper side of the outer wall of the purification door back plate, and a door opening and closing mechanism is arranged in the mounting shell. The door opening and closing mechanism comprises a threaded rod rotationally connected to the inner wall of the mounting shell, a servo motor installed on the outer wall of the mounting shell, a sliding rod fixedly connected to the inner wall of the mounting shell, a first straight rack fixedly connected to the front end face of the interior of the mounting shell, and a second straight rack rotationally connected to the front end face of the first door plate through a rotating shaft, wherein the output end of the servo motor is fixedly connected with the threaded rod. The first door plate and the second door plate can be driven to be opened or closed synchronously by matching the gear, the threaded rod, the sliding rod, the gear, the first straight rack and the second straight rack which are in meshed connection with the first straight rack, and the first door plate and the second door plate can be stacked together after being opened, so that use in a narrow space is facilitated.

The application discloses an inflating door control system and an inflating door, and belongs to the technical field of inflating doors, which comprises a control unit, a display module and a gas source supply module, the gas outlet end of the gas source supply module is connected with a check valve, the gas outlet end of the precision filter is provided with a main gas path pipeline, along the gas flow direction of the main gas path pipeline, a solenoid valve two, a pressure maintaining valve and a pressure reducing valve are arranged, the gas outlet end of the pressure reducing valve is provided with a branch gas path, the gas outlet end of the branch gas path is connected with a branch air inlet pipe, the gas outlet end of the branch air inlet pipe is respectively connected with an inflating rubber strip, and the branch gas path is provided with a solenoid valve one and a gas pressure sensor one. Through the setting of the back blowing system and the emergency system, the reverse blowing of the gas path can be realized, the impurities, dust and the like accumulated in the gas path can be removed in time, the gas path is kept unobstructed, and reliable sealing guarantee is provided when the gas path leaks.

The application discloses a steel structure protective sealed door and belongs to the technical field of protective doors. The technical scheme is as follows: a door frame is integrally poured with a concrete wall body; a door leaf is hinged to the door frame; a sealing strip is arranged on the door frame and on the side corresponding to the door leaf; a pressurizing assembly is arranged on the door leaf and is provided with a pressurizing seat; and a reinforcing structure is arranged in the door leaf and comprises a horizontal reinforcing plate and a vertical reinforcing plate. The pressurizing seat is arranged on the four side edges of the door leaf, the door frame is provided with a pressurizing groove, and the pressurizing assembly controls the pressurizing seat to abut against the side wall of the pressurizing groove. The application can improve the sealing performance of the four side edges of the door leaf.

The utility model relates to the field of armored doors, in particular to an air leakage prevention structure of a split double-exposed-seam armored door. The door comprises a door frame, a secondary door and a primary door are rotatably mounted in the door frame, the main structures of the secondary door and the primary door are the same, the secondary door comprises a door body frame, strength plates are mounted on the front side and the rear side of the door body frame respectively, and decorative plates are mounted on the outer sides of the strength plates; first sealing rubber strips are arranged on the outer sides of the upper end and the lower end of the secondary door, cover plates are installed at the upper end and the lower end of the secondary door lock stop, sealing strip connectors are arranged on the cover plates, and one ends of the first sealing rubber strips are inserted into the sealing strip connectors; according to the structure, a main body part between the secondary door and the primary door is sealed through the vertical sealing strips, gaps between the upper ends and the lower ends of the vertical sealing strips and the first sealing rubber strips are blocked through the sealing strip connectors, the air tightness of the armored door is guaranteed, the end of the secondary door lock stop is blocked while the sealing strip connectors are installed through the cover plate, the attractiveness is improved, and the service life of the armored door is prolonged. And air can be prevented from forming convection between the upper end and the lower end of the secondary door lock stop and generating noise due to vibration.

The utility model discloses a civil air defense sliding rail door device, and relates to the technical field of civil air defense doors. The door comprises a door frame, a cleaning assembly and a sealing assembly, a door plate is arranged in an inner cavity of the door frame, pulleys are fixedly connected to the top and the bottom of the door plate, sliding ways are formed in the top and the bottom of the inner cavity of the door frame, and the cleaning assembly is arranged at the bottom of the door plate and comprises an installation frame. And a rotating shaft is movably connected between the front side and the rear side of the inner cavity of the mounting frame. Through the arrangement of the cleaning assembly, the walking wheel can walk and rotate on the inner wall of the slide way to drive the rotating shaft to rotate, the rotating shaft is matched with the crown gear to control the stud gear and the rotating rod to rotate, the rotating rod rotates to enable the bristles to rotate at a high speed, and impurities and soil in the slide way are cleaned; meanwhile, the bristles are matched with the door plate to move to clean the slideways, impurities are prevented from affecting opening and closing of the civil air defense door, and people can use the civil air defense door conveniently.

The utility model discloses an anti-airtightness ventilation cut-off waveguide window, which belongs to the technical direction of waveguide windows and comprises a waveguide window, the waveguide window is detachably mounted on a wall body of a shielding room, the inside of the waveguide window is provided with honeycomb-shaped ventilation holes, a cover plate is detachably mounted on one side of the outside of the waveguide window, and the cover plate is detachably mounted on the other side of the waveguide window. A rubber and plastic heat preservation plate is detachably installed on the cover plate, a stainless steel spring hasp is detachably installed on the other side of the outer portion of the waveguide window, sealing or ventilation operation can be rapidly switched through matched use of a hinge corner piece, a hinge fixing block and a stainless steel hinge 2, frequent disassembly and assembly are not needed, the time needed for installation is shortened, operation is convenient and rapid, and the sealing effect is good. Through cooperative use of the cover plate, the rubber and plastic heat preservation plate and the waveguide window, the waveguide window can be subjected to airtight operation, when toxic gas is generated in an experiment, the airtight device can be closed outside the shielding chamber, the toxic gas is prevented from leaking out, the external environment is prevented from being damaged, operation is convenient and rapid, and the working efficiency of workers can be effectively improved.

The utility model discloses a purified airtight steel door with good sealing effect, and relates to the technical field of purified airtight steel doors. The utility model comprises a purified airtight mechanism, a linear pushing mechanism and an embedded sound insulation mechanism, wherein the purified airtight mechanism comprises a plywood for support, the board surface of the plywood is hollow inside, and an airtight groove is arranged inside the board surface of the plywood, a plurality of airtight strips are transversely installed in the groove position of the airtight groove, and the plurality of airtight strips are evenly arranged on the groove position surface of the airtight groove, a protective cover is plywood-mounted on the back side of the board surface of the plywood, and the cover connection end of the protective cover is evenly arranged on the edge side wall of the plywood, the cover connection between the plywood and the protective cover is lifted by adopting the airtight strip, the airtight groove in the middle of the airtight strip and the adopted airtight pipe is combined with the board surface structure of the plywood to realize the isolation of the sound inside and outside the protective enhanced plywood, and the adopted protective cover is in contact with the protective cover on the back and the strip board surface structure in the middle.

The utility model discloses a drooping type smoke-proof curtain, which relates to the field of smoke-proof curtains, and comprises a top frame, the two sides of the lower end part of the top frame are fixedly connected with borders, the side of the top frame is fixedly connected with a motor, the output shaft of the motor is in transmission connection with a driving shaft, and the driving shaft is matched with a roll shaft through a shifting mounting assembly. The driving shaft and the roller shaft are in transmission connection through a linkage installation assembly, a smoke-proof curtain is installed on the outer ring of the roller shaft in a winding mode, and the lower end of the smoke-proof curtain penetrates through a transverse groove reserved in the bottom of the top frame and is fixedly connected with a saddle weight. The two sliding rods are driven to move by oppositely shifting the two ring blocks, when the sliding rods move towards the interiors of the sliding grooves to be away from the columnar grooves and the clamping grooves, the smoke prevention curtain can be detached, and the two ends of the follow-up roller shaft are opposite to the columnar grooves and the clamping grooves in position; and the springs return to move to push the sliding rods to be matched with the corresponding columnar grooves and the clamping grooves to achieve installation of the smoke-proof curtain, and disassembly, assembly, maintenance and regular replacement of the smoke-proof curtain are facilitated.

The utility model relates to a fire-fighting smoke exhaust window for a gas film building, which belongs to the technical field of building smoke exhaust and particularly comprises a supporting bottom plate mounted on a bottom frame of a rectangular plate frame, the supporting bottom plate is horizontally arranged, a cover plate is mounted on a top frame of the rectangular plate frame, and side plates are mounted on two side frames of the rectangular plate frame respectively. The end faces of the supporting bottom plate, the cover plate and the side plate are located on the same plane, the side plate is fixedly connected with the supporting bottom plate and the cover plate, the front end of the supporting bottom plate is connected with a door plate through a hinge, connecting bases are installed on the supporting bottom plate and the back of the door plate respectively, an electric push rod is installed between the connecting bases, and the two ends of the electric push rod are hinged to the connecting bases respectively. The air film building smoke exhaust device is simple in structure, reasonable in design, capable of meeting the requirement for smoke exhaust of an air film building, and convenient to install and fix.

The invention relates to a method of mounting an inflatable chamber lock (100) in a asbestos, polychlorinated biphenyl (PCB), and / or lead contaminated building environment (120), the method comprising: sealing the asbestos, polychlorinated biphenyl (PCB), and / or lead contaminated building (120), ensuring a negative pressure in the building, inflating the chamber lock (100) from a first non-inflated position (P1) to a second inflated position (P2), positioning the chamber lock in an opening (110) of the building (120), and if necessary, adjusting the inflated chamber lock in the opening of the contaminated building. Further the invention relates to a chamber lock (100) adapted to be installed in an opening (110) in a contaminated building environment (120). The chamber lock comprises an inflatable frame (130) comprising a plurality of coherent, inflatable tubes, at least two flexible external walls (140) mounted on the inflatable frame

The utility model discloses a civil air defense door with a quick plugging mechanism, relates to the technical field of civil air defense doors, and provides the following scheme aiming at the problems that after a fireproof door provided in the background technology is automatically closed, a certain gap exists between a fireproof connecting door and the ground, toxic smoke enters the other side of the fireproof door along the gap, and the protection effect is poor. Comprising a door frame and a sealing door, a limiting mechanism is arranged in the door frame, the limiting mechanism comprises a doorsill, a blocking mechanism is arranged in the door frame, and the blocking mechanism comprises a blocking plate, a connecting plate fixedly arranged on the outer wall of one side of the blocking plate and four connecting rods fixedly arranged on the outer walls of the two sides of the connecting plate in a pairwise mode; adjusting mechanisms are arranged on the two sides of the door frame, and each adjusting mechanism comprises a mounting plate and an adjusting oil cylinder. The gap between the bottom of the civil air defense door and the ground can be blocked in the automatic closing process of the civil air defense door, toxic smoke is prevented from penetrating through the gap, and the protection effect is improved.

The utility model discloses an intelligent locking large isolation door which comprises a door frame, a sealing plate and an inserting plate door plate. The sealing plates are fixed to the two sides of the door frame. At least one group of inserting plate door plates are inserted into a cavity formed by the sealing plate and the door frame; the bottom of the door frame is provided with an ash falling groove, two ends of the ash falling groove are provided with ash blowing ports, and the bottom end is provided with a drain outlet; a sealing strip made of a high-temperature-resistant and corrosion-resistant material is mounted at an inner side interface, corresponding to the inserting plate door plate, of the door frame; the plug board door plate comprises a door plate, a transmission device and a locking device; the transmission device and the locking device are electrically connected with an electric cabinet of the isolation door. After the scheme is adopted, the influence of dust is solved through the dust falling groove, the problems of untight sealing and serious leakage are solved through the cooperation of the transmission device and the locking device, and the blank that a large flue isolation door of more than 4 meters cannot be installed and used is filled up through the modularized insertion plate door plate.

The utility model relates to the technical field of air-tight doors, in particular to an anti-impact protective air-tight door which comprises a connecting door, a fixed door frame and a fixed door head, a pushing plate is fixedly connected below the fixed door frame, a limiting groove is movably connected below the connecting door, a pushing spring is fixedly connected inside the limiting groove, and the fixed door head is fixedly connected with the pushing plate. A driving rack is movably connected to the interior of the fixed door frame, a door head groove is movably connected to the upper portion of the connecting door, a force unloading plate is fixedly connected to the interior of the connecting door, and a force unloading rod is movably connected to the outer portion of the force unloading plate. The lifting plate is pushed up through the elastic force of the pushing spring, the limiting groove is filled and leveled up, in the process that the connecting door is impacted, the door is protected through rotation of the force unloading shaft and resistance force unloading of the damper, and the door is recovered through the elastic force of the force unloading spring.

The utility model discloses an anti-locking double-leaf protective air-tight door which comprises a door frame and air-tight doors, the air-tight doors are symmetrically arranged in the door frame, the rear ends of the air-tight doors are rotatably connected with the door frame through hinges, a plurality of supporting blocks are installed at the rear ends of the air-tight doors, universal wheels are installed at the lower ends of the supporting blocks and make contact with the ground, and a concentric-square-shaped sealing strip is installed on the inner wall of the door frame. A hidden groove is formed in the bottom in the door frame, and two anti-locking mechanisms are arranged in the hidden groove. Supporting force is provided for the sealing door through the universal wheels and the supporting blocks, the sealing door cannot droop and deform under the influence of suspended gravity after being opened for a long time, meanwhile, when the sealing door is opened, the baffle is obliquely arranged, so that particle sundries falling on the baffle can roll down and cannot stay on the baffle, and the sealing door is convenient to use. And the situation that the sealing door is blocked and cannot be closed due to the particle impurities is avoided.

The invention discloses an inflation door control system and an inflation door, and belongs to the technical field of inflation doors, the inflation door control system comprises a control unit, a display module and an air source supply module, the air outlet end of the air source supply module is connected with a check valve, and the air outlet end of a fine filter is provided with a main air path pipeline; a second electromagnetic valve, a pressure retaining valve and a pressure reducing valve are arranged in the main gas path pipeline in the gas flowing direction, a branch gas path is arranged at the gas outlet end of the pressure reducing valve, the gas outlet end of the branch gas path is connected with a branch gas inlet pipe, and the gas outlet end of the branch gas inlet pipe is connected with an inflation rubber strip. The branch air path is provided with a first electromagnetic valve and a first air pressure sensor. By arranging the reverse blowing system and the emergency system, reverse blowing of an air channel can be achieved, impurities, dust and the like accumulated in the air channel can be removed in time, the air channel is kept unblocked, and reliable sealing guarantee is provided when the air channel leaks.

The present invention relates to a smoke removal system for installation in a building's entrance / exit passageway. The system includes a door case with an intake and an exhaust port, a door nozzle installed inside the door case for spraying water supplied from the outside, and a negative pressure inductor that creates negative pressure by the Venturi effect as the water sprayed from the door nozzle passes through, drawing in gas around the door case through the intake port, mixing the gas with water, and then descending toward the exhaust port. The smoke removal system for installation in a building's entrance / exit passageway creates negative pressure during a fire, drawing in surrounding smoke and toxic gases, mixing them with water, and discharging them. This significantly reduces the concentration of smoke and toxic gases. It also ensures visibility and provides lighting during power outages, guiding rapid evacuation and minimizing casualties. It also maintains fire prevention functions, such as cooling fire doors and fire shutters to prevent thermal deformation and damage caused by flames, thereby preventing the spread of fire and maximizing evacuation time.

The utility model discloses an anti-loosening reinforced concrete protective door, which relates to the technical field of protective doors and comprises a door frame, hinges are mounted on the inner side of the door frame, an adjusting groove is formed in the top of the inner side of the door frame, a clamping groove is formed below the adjusting groove and is formed in the top of the inner side of the door frame, and first limiting springs are symmetrically arranged in the clamping groove. A clamping plate is slidably connected into the clamping groove, and matching grooves are symmetrically formed in the outer side of the clamping groove. The bearing plate, the clamping plate, the limiting groove, the upper guiding body and the lower guiding body are arranged, the bearing plate, the clamping plate and the limiting groove are used in cooperation, so that the upper guiding body, the lower guiding body and the protective door are integrated, and when the hinge falls off, the protective door rotates on the door frame under the control of the upper guiding body and the lower guiding body; in addition, the clamping plate and the limiting groove are used in cooperation, and the situation that the bearing plate moves in the rotating process of the protective door, and consequently the protective door inclines is avoided.