1102results about "War-like protection" patented technology

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 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.

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.

The utility model belongs to the technical field of explosion venting membrane windows, and particularly discloses a nuclear power flying object prevention explosion venting membrane window which comprises an outer window frame, an inner window frame and an explosion venting membrane, the outer window frame and the inner window frame are rotationally installed through a hinge, and locking fasteners are arranged on the sides, away from the hinge, of the outer window frame and the inner window frame. An explosion venting through cavity is formed in the inner side of the inner window frame, the explosion venting membrane is installed in the explosion venting through cavity of the inner window frame in a sealed mode through a plurality of locking pieces, and meanwhile a steel grating abutting against the end face of the explosion venting membrane is arranged on the inner side of the inner window frame. When high pressure occurs indoors, the explosion venting film is exploded to quickly release indoor pressure, damage to indoor equipment, instruments and meters caused by the fact that external flying objects are rolled up by tornado is prevented, and meanwhile damage to the indoor equipment, instruments and meters caused by pressure increase after indoor explosion is prevented. And meanwhile, follow-up workers can conveniently replace and install the explosion venting membrane.

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.

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.

There is provided a screen system. The system may include frame assemblies defining a frame, and a sheet of infill material secured to the frame. One or more of the frame assemblies may include: an outer sash including a first sidewall, a second sidewall, and first engagement member(s), with the first sidewall including a retaining portion; a cover sash including second engagement member(s) configured to engage the first engagement member(s) such that the cover sash occupies a position opposing the retaining portion of the first sidewall and, in combination with the retaining portion, defines a channel therebetween; and an inner sash disposed in the channel between the retaining portion and the cover sash, the inner sash configured to retain an end of the sheet of infill material. There is also provided a method of assembly.

An electric push control system for a vertically pivoted protective door. The electric push control system comprises: a protective door, the protective door comprising a door body; and an electric-cylinder-driven vertically pivoted door body opening and closing device, which comprises a driving electric motor module and a push rod in power connection with the driving electric motor module, with the electric-cylinder-driven vertically pivoted door body opening and closing device being hinged relative to a mounting base, and the push rod being hinged to the door body. In the present invention, the door body is driven by an electric cylinder structure to open and close, and the present invention achieves a small arrangement space and a large opening and closing torque; the electric-cylinder-driven vertically pivoted door body opening and closing device has a simple structure, reducing the complexity of maintenance and management; compared with a hydraulic driving system, the electric-cylinder-driven vertically pivoted door body opening and closing device does not require the periodical replacement of hydraulic oil, the cleaning of an oil path and the maintenance of hydraulic elements, thereby reducing the maintenance cost and workload, and providing a solution conforming to environmental protection and modern management. After being put into practical application, the present invention can solve problems in the prior art, such as inconvenient maintenance and a low level of operating safety, caused by using a hydraulic driving system in a protective door.

The utility model relates to the technical field of grain depot door waterproof wallboards, and discloses a central reserve grain depot door waterproof wallboard which comprises a door frame, a first waterproof wallboard body and a second waterproof wallboard body are movably connected to the inner surface of the right middle of the door frame, and the first waterproof wallboard body is located on one side of the second waterproof wallboard body. The outer surfaces of the rear ends of the first waterproof wallboard and the second waterproof wallboard are fixedly connected with a fixing frame, and the outer surfaces of the right middle portions of the front ends of the first waterproof wallboard and the second waterproof wallboard are fixedly connected with a wallboard waterproof assembly. The waterproof wallboard of the grain bin door can be conveniently and rapidly closed and sealed, when the waterproof wallboard needs to be opened, the waterproof wallboard can be opened and closed just like a common door, dismantling is not needed, the situation that a large number of materials are wasted after dismantling is reduced, and meanwhile the waterproof, rat-proof and insect-proof effects can be further improved; and a better use prospect can be brought.

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.

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.

The invention discloses an explosion-proof and fire-proof soft isolation device special for a new energy automobile in an underground parking space. The explosion-proof and fire-proof soft isolation device comprises a lifting fire resisting shutter, an intelligent control module and a locking mechanism. The upper end of the roller shutter is installed on a basement top plate through a rotating shaft, the roller shutter at the other end is tightly and firmly wound through a fastening device of a stainless steel square pipe pressing groove, three steel plate fasteners are arranged on the lower portion of a stainless steel square pipe and meshed and locked with a 50 mm electromagnetic valve locking embedded part embedded in the concrete ground, and a vertical fireproof barrier is formed. The control system supports automatic detection of vehicle state decline or manual remote control operation, and the roller shutter is made of single-layer A1-level reinforced fireproof glass fiber cloth (the damage peak value reaches 34884.8 N / m). The device is of a normally-closed standby type and is in the optimal fireproof isolation state without manual control, and associated losses caused by accidental detonation of the new energy automobile are greatly reduced or completely prevented. When the fire resisting shutter descends in place, if the wind power is large, the fire resisting shutter can be manually assisted in place. The fireproof roller shutter can be used for a basement parking space and can also be used for scenes such as an outdoor charging station with a shed (when the parking space is wide, the fireproof roller shutter can be directly fixed up and down to meet the anti-deflagration isolation requirement).

The utility model relates to the technical field of lifting delivery windows, in particular to a lifting delivery window with a dustproof structure, a sliding seat is connected onto a cross rod in a sliding manner, an inclined rod is arranged at the output end of the sliding seat, and the input end of the inclined rod is rotatably connected onto the inner wall of a window door. When the window door moves upwards to be opened, the inclined rod can be driven at the same time, the inclined rod can drive the sliding base on the transverse rod to move, the air bag is arranged on the transverse rod and arranged on the transverse rod in a sleeving mode, the air bag can be compressed when the sliding base moves towards the air bag, and when the air bag is compressed, air in the air bag can flow into the air pipe and is finally exhausted through the air port. The air ports face the closed position of the window door of the delivery window body, air is exhausted through the air ports after the air bags are extruded, airflow exhausted through the air ports can flow towards the closed position of the window door, dust outside or at the position close to the window door is blown outwards, the external dust cannot enter the delivery window body, and therefore dust prevention of the delivery window is achieved.

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.

The utility model discloses a fully prefabricated underground family shelter, which comprises a prefabricated foundation, a prefabricated outer wall, a prefabricated door frame wall and a prefabricated composite floor slab, the internal space of the shelter is divided into an opening part and a protection area by the prefabricated door frame wall, and longitudinal bars of the prefabricated outer wall and the prefabricated door frame wall are connected with embedded bars in the prefabricated foundation through semi-grouting sleeves. A gap between the prefabricated outer wall and the prefabricated foundation and a gap between the prefabricated door frame wall and the prefabricated foundation are both densely poured through high-strength grouting materials, the prefabricated outer wall and the prefabricated foundation are connected through rabbets, and the prefabricated outer wall and the prefabricated composite floor slab as well as the prefabricated door frame wall and the prefabricated composite floor slab form a whole through post-pouring composite layers. And water stopping measures are arranged at the top ends of the prefabricated outer wall and the prefabricated door frame wall. The utility model has the advantages of standardization, mass production and short on-site construction period, and can effectively reduce on-site wet construction.

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.

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.

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.

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.

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.

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.

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.

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.

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.

The utility model discloses a counter-pulling anchoring flood gate adopting a rear anchoring mode, which comprises a door frame structure, a door leaf, a locking structure, a hinge and an anchoring device, the door frame structure is arranged in a door opening of a wall body through the anchoring device, the door leaf is connected to the wall body through the hinge, and the locking structure is arranged on the door leaf; the door frame structure comprises a door frame and a doorsill, the anchoring devices comprise the first anchoring device and the second anchoring device, the door frame is arranged in a door opening of a wall through the first anchoring device, the doorsill is arranged on the ground through the second anchoring device, and the hinge is arranged on the wall through the first anchoring device. The door frame is fixed in the wall body through the anchoring device, the structural complexity of the door frame is greatly reduced, the adopted opposite-pulling anchoring mode has the advantages of being simple in structure, high in anchoring strength and convenient to install, and the protection performance of the moisture-proof door can be effectively improved.

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.

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.