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766results about "War-like protection" patented technology

A heat-insulating and fireproof door core material for security doors and a preparation method thereof

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.
Owner:浙江荣圣新材料科技有限公司

Intelligent civil air defense and flood gate equipment and system and control method of intelligent civil air defense and flood gate equipment and system

The invention relates to intelligent civil air defense and flood gate equipment and system and a control method thereof. The equipment comprises a gate body and a gate leaf driving mechanism. The door body comprises a lower locking mechanism; bottom lifting type sealing structures are arranged between the bottoms of the left door leaf and the right door leaf and the lower door frame. The door leaf driving mechanism is connected with the left door leaf and the right door leaf; the system further comprises an intelligent control device, the intelligent control device comprises a sensor module, a drive control module and a remote control platform, the sensor module and the drive control module are integrated on the door body, and the sensor module comprises a door leaf opening and closing position detection sensor, a bottom lifting type sealing structure pressing state detection sensor and a water level height detection sensor. And the driving control module controls the door leaf driving mechanism and the lower locking mechanism according to a detection signal of the sensor module and an instruction of the remote control platform. By optimizing a door body sealing and locking execution structure and combining a sensing monitoring and centralized control mode, the sealing reliability and control safety of the civil air defense door under the conditions of high water level and complex water flow are improved.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP CO LTD

Civil air defense protection equipment with polyurea coating

The invention relates to the technical field of civil air defense equipment, in particular to civil air defense protection equipment with a polyurea coating, which comprises a civil air defense door body, a support mounting assembly, an easily-detachable connecting assembly and a maintenance treatment assembly, the surface and an internal interlayer of the civil air defense door body are both provided with the polyurea coating, and one side of the civil air defense door body is provided with two support arms; the surface of the civil air defense door body is provided with the polyurea coating, the corrosion resistance and the anti-rust performance of a metal structure are improved, then when the civil air defense door body is installed, the supporting installation assembly with the maintenance treatment assembly and the easy-to-disassemble connecting assembly is arranged, when a bearing movably connected with the civil air defense door body is damaged and replaced, rapid and convenient replacement can be conducted, and the service life of the civil air defense door body is prolonged. In addition, the maintenance processing assembly can achieve water vapor blowing drying on the surface of the supporting connecting box and convenient lubrication of a supporting bearing in the supporting connecting box, and the using convenience and the corrosion-resistant safety of the civil air defense door body are further improved.
Owner:QINGDAO GUOGONG HI TECH MATERIALS CO LTD

Green energy-saving cold store

A green energy-saving cold store is provided, including a cold room, a platform, a machine room, and a refrigerating system. A drying layer (1) is arranged below the first floor of the cold room; a ground heat insulation layer (2) is moved downwards into the drying layer (1) and is separated from a first floor slab (3); an inner wall (4), an internal partition wall, and the wear-resistant waterproof floor (33) are directly located on the first floor slab (3) and integrated with a frame structure; a peripheral protective wall adopts a light steel structure wall surface (14), and is connected to the frame structure by means of ball joint tie beams (15) at the intersection points between frame beams and columns. The cold store is energy-saving and environment-friendly, and has good anti-seismic and fireproof performance.
Owner:WANG ENRONG

Smart community double-door half-height shielding door

The utility model discloses an intelligent community double-door half-height shielding door which comprises a protection shell, a sliding door assembly is arranged in the protection shell and comprises a nut block, a slot is in sliding connection with the interior of the side wall of the top of the protection shell, the top of the protection shell is fixedly connected with an outer protection box, and the outer protection box is fixedly connected with an inner protection box. The top of the protective shell is further fixedly connected with a sliding rail, the outer wall of the sliding rail is slidably connected with a blocking sliding door, the two sides of the blocking sliding door are fixedly connected with L-shaped connecting rods, the L-shaped connecting rods are inserted into the inserting grooves, the sliding door assembly further comprises a top cover, and the top cover is fixed to the top of the outer protective box through bolts. The utility model relates to the technical field of shielding doors. According to the double-door half-height shielding door for the intelligent community, when the blocking sliding door needs to be disassembled, the top cover is separated from the top of the outer protection box, then the blocking sliding door can be directly taken up to vertically move upwards, and the disassembly can be quickly completed by enabling the L-shaped connecting rod to be separated from the inserting groove.
Owner:DONGGUAN ZKTECO ELECTRONICS TECH

Automatic protection system for vault door

The invention relates to the technical field of vault security and protection systems, in particular to an automatic vault door protection system which comprises a door frame, a door body, an observation assembly, a self-locking assembly, a protection assembly and an alarm device. The self-locking assembly automatically locks the door body and the door frame in a multi-point mode when detecting abnormity. The protection assembly acts synchronously to physically isolate the coded lock and the operation area; according to the invention, the upgrading from passive mechanical protection to intelligent active protection is realized, the integrated functions of abnormal recognition, automatic locking, dynamic protection and remote alarm are realized, and the safety and emergency response capability of the vault door are remarkably improved.
Owner:HUNAN CHUANGSHI INTELLIGENT TECH CO LTD

Door plate

The utility model provides a door plate. The door plate comprises a panel, a cover plate, a filling layer and a supporting layer. The cover plate is provided with a mounting cavity. And the panel is fixedly connected with the cover plate and covers the opening of the mounting cavity. And the filling layer is arranged in the mounting cavity. The supporting layer is arranged in the mounting cavity and at least located between the panel and the filling layer. The supporting layer adopts a metal plate. Compared with a wooden door plate in the related technology. The filling layer and the supporting layer made of the metal material are arranged between the panel and the cover plate, so that the overall strength of the door plate is improved by exerting the high strength of the metal plate. The supporting layer is made of a metal plate, is firm in structure and high in bending resistance and pressure resistance, provides strong support for the panel, enhances the strength of the panel, and can effectively resist deformation caused by long-time use and external force impact.
Owner:FOSHAN WANGHUA BUILDING MATERIALS TECH CO LTD

Externally-hung heat-insulating nickel-saving stainless steel civil air defense door

The utility model provides an externally-hung heat-insulating nickel-saving stainless steel civil air defense door, which is characterized in that a door frame is fixedly arranged on a wall body; the civil defense door body is arranged on the door frame in an openable manner; a heat insulation cavity is formed in the heat insulation hanging frame; the heat dissipation hanging frame is arranged outside the closed space of the civil air defense door body, a heat exchange cavity is formed in the heat dissipation hanging frame, the heat exchange cavity communicates with the heat insulation cavity through a connecting pipe, and heat exchange media are arranged in the heat insulation cavity and the heat exchange cavity; the driving mechanism is arranged on the connecting pipe and used for driving the heat exchange medium to circulate between the heat exchange cavity and the heat insulation cavity; the heat insulation layer is arranged on the heat insulation hanging frame and arranged on the outer side of the heat insulation cavity. According to the civil air defense door, the heat insulation hanging frame, the heat dissipation hanging frame and the driving mechanism are matched, heat on the outer side of the civil air defense door body can be absorbed and dissipated through the heat dissipation hanging frame, the heat insulation effect of the civil air defense door body is improved, the heat insulation effect of the heat insulation hanging frame can be further improved through the heat insulation layer, and then the heat insulation effect of the civil air defense door is improved.
Owner:HEBEI PROVINCIAL INST OF PROD QUALITY SUPERVISION & INSPECTION +1

Single-leaf protective airtight door capable of being rapidly closed

The utility model discloses a single leaf protective air-tight door capable of being closed quickly, which comprises a door frame and a door body, the door body is arranged inside the door frame, a rotating rod is arranged at the right part of the rear end of the door frame, a plurality of connecting blocks are arranged on the outer surface of the rotating rod, the connecting blocks are fixedly connected with the door body, stop blocks are symmetrically arranged on the upper and lower sides of the connecting blocks, and the stop blocks are sleeved on the outer surface of the rotating rod. The outer surface of the rotating rod is sleeved with a plurality of torsion springs, one end of each torsion spring is fixedly connected with the corresponding check block, the other end of each torsion spring is fixedly connected with a connecting block, a rotating cover is installed at the upper end of the rotating rod, a rotating shaft is arranged in the rotating cover, a second motor is installed at the upper end of the rotating shaft, and a round cavity is formed in the rotating shaft. The electromagnet loses repulsive force after being powered off, the magnet loses repulsive force, the spring pushes the shifting block to ascend, the shifting block drives the roller to ascend and roll to leave the matching block, the rotating cover loses limiting force, the torsion spring resets to push the rotating rod to rotate and reset, and the door body is rapidly rotated and closed.
Owner:SHANGHAI YUEYOU CIVIL AIR DEFENSE ENG CO LTD

Protective door structure of hot smoke box

The utility model relates to the technical field of protective doors, and one embodiment of the utility model provides a hot smoke box protective door structure which comprises a door plate and further comprises a heat preservation plate, a mounting cover, a fixing mechanism, a fixing seat, a fixing opening, a positioning seat, a positioning mechanism and a moving mechanism, the heat preservation plate is arranged on one side of the door plate, and a mounting groove is formed in the heat preservation plate; the mounting cover is arranged in the mounting groove in a sliding mode, positioning grooves are formed in the two opposite side walls of the mounting cover, the fixing mechanism is arranged between the mounting cover and the side walls of the mounting groove and is used for fixing the mounting cover and the side walls of the mounting groove, and the fixing base is fixedly arranged on the door plate and can extend into the mounting cover in a sliding mode. A fixing opening is formed between the two opposite side walls of the fixing seat, the positioning seat is arranged in the fixing opening in a sliding mode, the positioning mechanism is arranged on the positioning seat, and through the technical scheme, the technical problem that in the prior art, the installation stability between the protective door and the heat preservation plate is low is solved.
Owner:HEBEI XINLONG INTELLIGENT CONTROL TECH CO LTD

Guiding ventilation cut-off waveguide window for dangling type explosion-proof wave shielding valve

The utility model discloses a guide ventilation cut-off waveguide window for a dangling type explosion-proof wave shielding valve, which belongs to the technical direction of waveguide windows and comprises an inclined ventilation cut-off waveguide window, a static pressure absorption cabin, a horizontal ventilation cut-off waveguide window, a door leaf outer door plate and a door leaf inner door plate. The oblique ventilation cut-off waveguide window is welded to one end of the outer door plate of the door leaf, the oblique ventilation cut-off waveguide window, the static pressure absorption cabin and the horizontal ventilation cut-off waveguide window are used in cooperation, a double-layer combined ventilation waveguide structure is adopted, and a wave absorption material is attached to the static pressure absorption cabin, so that electromagnetic waves are reflected and absorbed for multiple times in the static pressure absorption cabin; electromagnetic wave energy entering the shielding body is greatly weakened, the overall shielding effectiveness is improved, meanwhile, the static pressure absorption cabin can evenly distribute air volume, stabilize airflow, reduce airflow vibration and noise, convert part of dynamic pressure into static pressure, reduce dynamic pressure loss, improve the efficiency of a ventilation system, enable air to be blown farther, and effectively reduce the length of the hexagonal waveguide structure.
Owner:CHANGZHOU LEINING ELECTROMAGNETIC SHIELDING EQUIP CO LTD

Multi-fan mainframe cabinet

This utility model relates to a multi-fan main unit cabinet for housing multi-fan main units, including a body, a cabinet door, a sound insulation panel, and partitions. The body is a hollow structure with an open front end. The cabinet door is located at the front end of the body. The sound insulation panel is a polyester fiber sound-absorbing panel, which is respectively installed on the outer wall of the body and the cabinet door. The partitions are located inside the body, dividing the interior of the body into a first chamber and a second chamber. The first chamber is suitable for housing the exhaust chamber of the multi-fan main unit, and the second chamber is suitable for housing the inlet chamber of the multi-fan main unit. By using polyester fiber sound-absorbing panels as sound insulation panels, partitioning the partitions, and designing a structure that accommodates the ductwork of the multi-fan main unit, the multi-fan main unit cabinet according to this utility model embodiment can effectively reduce the external transmission of main unit operating noise, optimize the utilization of internal space, and solve the problems of noise interference and spatial disorder when placing multi-fan main units.
Owner:SHANGHAI YUYAN SCIENCE INSTRUMENT CO LTD

A new type of sliding rail type civil air defense door

This utility model provides a novel sliding rail-type air-raid shelter door, relating to the technical field of air-raid shelter door equipment. It includes a fixed base plate, on the top of which are installed a first security wall and a second security wall. By setting up the fixed base plate, the first security wall, and a limiting mechanism, and using auxiliary lighting with a lamp, it facilitates nighttime operations. The second limiting frame contains an installation clamp plate and a limiting roller of the same structure. The limiting roller limits the sliding trajectory of the air-raid shelter door. A third positioning bolt positions the installation sleeve plate and the movable slider, ensuring that when the air-raid shelter door slides, it drives the fixed block to slide to one side. With the connection of the connecting rod, the movable slider slides outside the installation frame, the limiting roller rolls on one side of the installation frame, and the movable slide plate slides inside the positioning frame. This achieves normal security while facilitating remote monitoring of the site. Multiple limiting sliding mechanisms prevent excessive speed during sliding, thus avoiding safety hazards, and also facilitate subsequent normal resetting.
Owner:金鑫科技集团有限公司

Strip-shaped sealing structure, strip-shaped sealing method and application of strip-shaped sealing structure and strip-shaped sealing method in storage roadway

The invention discloses a strip-shaped sealing structure, a strip-shaped sealing method and application of the strip-shaped sealing structure and the strip-shaped sealing method in a storage roadway. The structure comprises a sealing device main body (1), a convex pressing strip (2) and a concave pressing strip (3), wherein the sealing device main body (1) is clamped between the convex pressing strip (2) and the concave pressing strip (3); the convex pressing strip (2) is provided with a first boss (21) and a first groove (22), and the concave pressing strip (3) is provided with a second boss (31) and a second groove (32). The method comprises the steps that the sealing device body (1) is in a strip shape through diagonal pulling and merging, the convex pressing strip (2) and the concave pressing strip (3) are symmetrically pressed, the first boss (21) is embedded into the second groove (32), the second boss (31) is embedded into the first groove (22), and the sealing device body (1) forms a folded labyrinth type sealing path. The sealing structure is suitable for sealing an inlet and / or an outlet of a stereoscopic warehouse roadway, a clean room channel or a special article warehouse roadway.
Owner:HONGYUN HONGHE TOBACCO (GRP) CO LTD

Impact-resistant civil air defense door

The utility model provides an anti-impact civil air defense door which comprises a door frame and a door leaf rotationally installed on the door frame, a locking device is installed on the door leaf, and the locking device comprises a driving seat arranged in the middle of the door leaf and locking assemblies distributed and installed on the periphery of the driving seat. The locking assembly comprises two sets of lock rods arranged side by side and a linkage piece driving the two sets of lock rods to act synchronously, and the linkage piece is in transmission connection with the driving base so that the lock rods arranged in a distributed mode can act synchronously. The driving base is in synchronous transmission connection with the multiple locking assemblies, the two locking rods are arranged on the locking assemblies side by side, the locking assemblies are connected with the lock catch base through the multiple locking rods, and the impact resistance of the door leaf is improved. The rotating handle controls the first bevel gear to rotate through the driving shaft, the first bevel gear drives the second bevel gear to rotate, the pushing sleeve is controlled to move by pushing the screw rod, the push rod controls the lock rods to stretch and retract through the linkage piece, synchronous action of the distributed lock rods is achieved, and personnel operation is facilitated.
Owner:FUNAN MINAN CIVIL DEFENSE ENG EQUIP CO LTD

Civil air defense engineering door

The utility model provides a civil air defense construction door which comprises a door leaf arranged in a rotatable mode and a push-pull mechanism used for pulling the door leaf, and the push-pull mechanism comprises an adjusting rail piece fixedly installed on a wall body, a sliding seat adjustably arranged on the adjusting rail piece and a pull rod installed on the sliding seat in a rotatable mode. The side, away from the sliding base, of the pull rod is rotationally installed on a support, and the support is fixedly arranged on the door leaf. According to the device, the door leaf is rotationally connected with the sliding seat through the pull rod, when the door leaf is opened, the sliding seat can gradually move forwards, the second clamping teeth elastically move and are sequentially clamped with the first clamping teeth in a matched mode, so that the sliding seat is prevented from moving backwards, the stability of the door leaf in the opening state is guaranteed, movement caused by collision or airflow driving is avoided, and it is guaranteed that people go out conveniently. The door leaf can be parallel to the wall body in the open state, in the forward moving process of the sliding base, the hand rod can be gradually pushed to stretch out of the inner groove space between the door leaf and the wall body, and personnel can conveniently pull the door leaf.
Owner:FUNAN MINAN CIVIL DEFENSE ENG EQUIP CO LTD

High-tightness civil air defense door device

The utility model relates to the technical field of adjusting support, concretely to a high airtightness civil air defence door device. The utility model discloses door frame and door leaf, the inside of door leaf is equipped with adjusting device, the adjusting device includes flange bearing and two racks, the circular arc surface of flange bearing is fixedly connected with door leaf, the inboard fixedly connected with the shaft of flange bearing, one end fixedly connected with the gear of the shaft, the outside of gear is engaged with two racks, one end fixedly connected with the connecting plate of rack, one end fixedly connected with the moving plate of connecting plate, one side of two moving plates is connected with door leaf slidingly. The traditional high airtightness civil air defence door device basically adopts single point locking structure, when single point locking, impact force (such as explosion shock wave) concentrates on single locking point, causes door leaf to bear non-uniform load, and the problem that partial door leaf is easily caused to be recessed or locking point welding place fatigue fracture.
Owner:SUZHOU GANGDUN CIVIL AIR DEFENSE ENG CO LTD

Pressure relief window for dust-free workshop

The utility model relates to the technical field of building doors and windows, in particular to a pressure relief window for a dust-free workshop, which comprises a frame body, an upper pressure relief window is movably arranged on the side surface of the frame body, and a lower pressure relief window is movably arranged on the side surface of the frame body and is movably arranged at the bottom of the upper pressure relief window. The window body is designed to be divided into the upper pressure relief window and the lower pressure relief window, the upper pressure relief window and the lower pressure relief window are used in cooperation with the anti-clamping piece, and when the window body is not completely closed, the upper pressure relief window and the lower pressure relief window keep relatively independent movement through the movable connecting structure, so that the risk that workers are pinched in the window body closing process is effectively avoided, and the operation safety is remarkably improved; according to the pressure relief window, the window body can smoothly move in the initial stage and is hardly influenced by resistance, and when the window body is close to the frame body, the window body is prevented from violently colliding with the frame body, so that the impact force and noise between the window body and the frame body are effectively reduced, and the service life of the pressure relief window is remarkably prolonged.
Owner:GUANGDONG HUAMAO CONSTRUCTION ENGINEERING CO LTD

Fire and explosion proof integrated protective door

The utility model relates to a fire and explosion integrated protection door belongs to the protection door field, for solving the crystallization that has not cleaned will be extruded between the door panel and the door frame sealing strip, not only will accelerate the aging, damage of sealing strip, reduce its service life, will also lead to the sealing is not strict, cannot effectively block the smoke and fire, high temperature and explosion shock wave, and then causes the fire spread, secondary explosion etc. accidental injury, seriously influence the fire and explosion core performance of protection door, can not satisfy the safety protection demand of the area of ship, a fire and explosion integrated protection door, including protection door main part, the door frame of rotation connection in the outside of protection door main part, through spring energy storage release drive rotary lever rotation, drive the scraper along the sealing strip inside profile fit rotation, thereby in the protection door closing process automatically removes the sea salt crystallization that adheres on the sealing strip, avoids the omission problem of artificial periodic cleaning, guarantees the air tightness and fireproof sealing performance of protection door.
Owner:WUXI HAILIAN SHIP INTERIOR DECORATION CO LTD

Civil air defense door with dustproof doorsill

The utility model relates to the technical field of civil air defense doors, in particular to a civil air defense door with a dust-proof doorsill, which can not influence the smoothness of entering and exiting in ordinary days, effectively avoid dust accumulation on the doorsill, improve the dust-proof performance of the doorsill, and avoid influence on the sealing when a door body is closed in wartime. Comprising a civil air defense door frame, a civil air defense door body is rotatably installed at the front end of the civil air defense door frame, a connector is integrally and fixedly arranged at the left end of a threshold, a storage groove is formed in the inner wall of the left side of the civil air defense door frame, the lower end of the storage groove extends to the bottom end of the civil air defense door frame, and two sets of supports are fixedly connected to the bottom end of the storage groove; the L-shaped inserting block is slidably installed in the sliding groove through cooperation with the opening, multiple sets of springs are fixedly connected between the left end of the L-shaped inserting block and the left end of the sliding groove, a horizontal inserting groove matched with the L-shaped inserting block is formed in the lower portion of the inner wall of the right side of the civil air defense door frame, the L-shaped inserting block is inserted in the horizontal inserting groove, and a vertical inserting groove matched with the L-shaped inserting block is formed in the top end of the containing groove.
Owner:ANHUI ZHUDUN CIVIL AIR DEFENSE EQUIP CO LTD

Convenient-to-assemble case and shielding door

The utility model discloses a case convenient to assemble and a shielding door, the case convenient to assemble comprises a connecting assembly and a case assembly, and the connecting assembly comprises a first connecting piece and a second connecting piece; the case assembly comprises a frame, a panel piece and a cover plate piece, the panel piece is detachably installed on the side portion of the frame through a first connecting piece, and the cover plate piece is detachably installed on the top of the frame and the top of the panel piece through a second connecting piece. The shielding door comprises a door row mechanism and the case convenient to assemble, and a driving mechanism is arranged in the case and used for driving the door row mechanism to move. According to the case provided by the utility model, the panel piece is simply connected with the frame, and then the connection part of the panel piece and the frame is further limited through the connection of the cover plate piece and the frame, so that the assembly is convenient, and the panel piece is prevented from being separated from the frame.
Owner:HONGMEN ADVANCED TECH CORP +1

Wing for a window or door and reinforcement element for such a wing

The present invention relates to a sash (1) for a window or door comprising: - a sash frame (2) formed from several profile sections with a main hollow chamber (8) for receiving a reinforcing element (9) and a fitting groove (6) for at least partially receiving a fitting element (7); - a surface element (5) received in the sash frame (2); - a fitting element (7) received at least partially in the fitting groove (6); and - a reinforcing element (9) received in the main hollow chamber (8) and constructed from several interconnected components (16, 17, 22); comprising, wherein the wing (1) is characterized according to the invention in that the reinforcing element (9) has a substantially g-shaped cross-section and has at least one component (16, 17, 22) comprising at least one section (18.2, 24) which is parallel to a groove wall (14.1, 14.2) of the fitting groove (6) and extending from the groove wall (14.1, 14.2) is arranged in the fitting groove (6). Furthermore, the present invention relates to a reinforcing element (9) for such a wing (1).
Owner:REHAU IND SE & CO KG

High-strength fireproof and bulletproof window structure

The invention belongs to the technical field of doors and windows, and particularly relates to a high-strength fireproof and bulletproof window structure which comprises a frame, inner-layer glass and outer-layer glass, and the inner-layer glass and the outer-layer glass are mounted in the frame. The frame body comprises a bottom plate, a top plate and two side plates, and a plurality of supporting pieces are fixedly connected to the side plates; a plurality of transparent fireproof plates are connected in the frame body, the fireproof plates are connected with the supporting pieces, the fireproof plates are vertically distributed in the height direction of the frame body, and the fireproof plates are arranged between the inner-layer glass and the outer-layer glass; the inner wall of the frame body is provided with a groove for mounting the inner-layer glass, and the side of the frame body is provided with a notch for mounting the outer-layer glass; the side plates are fixedly connected with fixing assemblies used for fixing the outer layer glass. According to the bulletproof window, the inner-layer glass, the outer-layer glass and the fireproof plate are arranged, the good bulletproof and fireproof effects are achieved through three-layer protection, the strength is high, and compared with existing thickened bulletproof glass, the outer-layer glass is low in replacement cost after being broken and convenient to replace.
Owner:TAIZHOU JINDUN SPECIALTY FIRE DOOR

Explosion-proof electric gate and intelligent control method

This invention provides an explosion-proof electric gate and an intelligent control method, belonging to the field of explosion-proof door technology. It includes a top seat, an alloy door, mounting shafts, a roller shutter door, a locking plate, and a lifting mechanism. A protective sleeve is fixedly connected to the top of the top seat. The alloy door is slidably connected within the protective sleeve, penetrating the bottom of the top seat and extending downwards. Two mounting shafts are provided, each rotatably connected to the inner wall of the top seat, with a winding roller fixedly connected to its circumferential surface. Two roller shutter doors are symmetrically arranged, one side of which is wound around the circumferential surface of the corresponding winding roller, and the other end of each door penetrates the top seat and extends downwards, located on both sides of the alloy door. Compared with existing single-layer steel plate structures, this effectively reduces the impact force during an explosion, greatly improving the overall explosion-proof strength. Furthermore, this solution uses a servo motor drive, allowing for remote control of the opening and closing, eliminating the need for manual closure and making it more convenient.
Owner:JIANGSU WUHUAN WATER ENG

Steel-wood passive type low-energy-consumption fireproof door

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.
Owner:CHUNTIAN GROUP