1246results about "Fireproof doors" patented technology

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

Disclosed in the present invention are a sunshade system with independently adjustable thermal insulation and shading performance and a control method therefor. The sunshade system with independently adjustable thermal insulation and shading performance mainly consists of a glazing system, a window frame, a sunshade mechanism, and a monitoring mechanism. A solar radiation sensor and an outdoor air temperature sensor in the monitoring mechanism are used to collect outdoor solar radiation data and air temperature data in real time, and the data is transmitted to a central processing unit; and on the basis of a sun-shading area ratio prediction model and according to measured values from the solar radiation sensor and the temperature sensor, the central processing unit extracts geometric parameters of an external window to determine the unfolding degree of a roll film. The present disclosure guarantees year-round thermal environment and day lighting effect in the interior of a building, and reduces the air conditioning and heating energy consumption of the building.

The present utility model relates to the field of roll-on / roll-off apparatuses. Disclosed is an airtight door for a passage apparatus of a roll-on / roll-off ship, the airtight door comprising an inclined ramp, a door body and a horizontal passage, wherein the door body is arranged between the inclined ramp and the horizontal passage; the door body is hinged to the horizontal passage by means of a hinge having an oblong hole; a sealing assembly is provided on the door body; a door frame is provided on the horizontal passage; the door body and the door frame are arranged to fit each other, and the door body and the door frame are both obliquely arranged; a push-pull device is mounted in the horizontal passage; a slider is connected to one end of the push-pull device; and a support connecting rod is hinged to the slider, and the support connecting rod is hinged to the door body. The airtight door for a passage apparatus of a roll-on / roll-off ship provided in the present utility model can make full use of the door's own weight to perform compression sealing, has strong airtightness and a good sealing effect, is safe, stable and reliable, has a simple structure, and is easy to maintain; besides this, the airtight door achieves a design without a door sill raised from the ground, does not hinder the passage of vehicles or the transport of goods, and has strong applicability.

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

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

The utility model relates to a heat insulation and fire resistance rolling shutter door which comprises a box assembly. The guide rail assembly is connected with the container assembly; the top of the door curtain assembly is connected with the container assembly, the two sides of the door curtain assembly are located in the guide rail assembly, the door curtain assembly can be driven by the container assembly to be stored and unfolded in the extending direction of the guide rail assembly, and the door curtain assembly comprises a plurality of door curtain parts rotationally connected end to end; wherein the door curtain part comprises a first door curtain part and a second door curtain part connected to the back face of the first door curtain part, a containing space is formed between the first door curtain part and the second door curtain part, and the containing space is suitable for being filled with fireproof heat insulation filler. Therefore, the national standard detection requirement can be met through a single curtain and a single rail in the mode that the middle of the door curtain component is filled with the fireproof heat insulation filler, water spraying protection does not need to be added, and the installation cost can be reduced while the installation space is saved.

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

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

The embodiment of the utility model provides a platform slow release device and an escape platform, and relates to the technical field of slow release devices. One end of the connecting part is connected with the movable end of the bearing platform; the running part is linked with the connecting part; the operation part is configured to be driven by the connecting part to do first movement when the movable end of the bearing platform is opened towards the outdoor side; and the slow release part is arranged on the fixed frame or the vertical surface of the building, and the slow release part is configured to apply opposite force for hindering the first movement to the operation part. By arranging the connecting part connected with the bearing platform and the operation part linked with the connecting part, the slow release part arranged in the fixed frame is adopted to slow down the movement of the operation part, so that the purpose of reducing the unfolding speed of the bearing platform is achieved, and the safety and stability of the unfolding process of the bearing platform are ensured.

When the upper part of the door body 1 is subjected to the heat of a fire and warps and deforms in a direction that separates it from the door frame 3, the leak of flames and smoke through the resulting gap is prevented, thereby improving fire resistance. [Solution] An upper recessed groove 4c is provided in the upper horizontal frame member 4 of the door frame 3 facing the door body 1. An upper sealing member 9, a spring 12, and a heat-deformable member 11 are provided in the upper recessed groove 4c. When the heat of a fire is applied, the heat-deformable member expands and deforms, causing the upper sealing member 9 to come into contact with the interior side panel 1e of the door body, which has warped due to the heat deformation.

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

The utility model discloses a kind of heat and sound insulation broken bridge aluminium windows, including window frame body, two layers of protective glass are installed in the window frame body inside, fixed plate is installed in the both sides of window frame body, the outer side of window frame body is equipped with multiple longitudinal distribution's sunshading board, lifting plate is installed in the inside of fixed plate, adjusting frame is installed on the fixed plate.The beneficial effects of the utility model are that by installing sunshading board outside protective glass, sunlight can be shielded, and heat insulation can be carried out, sunlight can pass through the gap between sunshading board and irradiate to indoor according to the principle of diffuse reflection, provide light for indoor under the condition of avoiding direct sunlight, according to the different angle of sunlight irradiation to window in different seasons, the position of lifting plate is adjusted and the angle of sunshading board is changed by adjusting frame, effective heat insulation can be carried out and indoor brightness is guaranteed, and use is more convenient.

The utility model relates to fire engineering technical field especially fire engineering is with preventing deformation's heat -proof fire door, including door frame, still including door shell and door lock component, door frame one side fixedly connected with door shaft, door frame one side fixedly connected with door shaft, the material that this device adopts through door shell is steel sheet to improve the strength of door, prevent deformation, the material that fills the layer adopts is magnesium oxide to improve the heat -proof of door, through being provided with first fire -retardant expansion seal and second fire -retardant expansion seal on door frame and door shell, thereby the door gap is sealed, improves the leakproofness, can effectively block the flue gas, through first spring drive movable block in the inside slide of guide block, movable block drive toothed plate removal, toothed plate drive gear rotation, gear drive first rotation axis rotation, first rotation axis drive second connecting rod rotation, second connecting rod drive first connecting rod in the inside rotation of fixed block, thereby the door shell is automatically closed, prevents the fire, flue gas spreads.

The utility model relates to a fire-resistant fire-fighting wood-plastic door, and belongs to the technical field of wood-plastic doors, the fire-resistant fire-fighting wood-plastic door comprises a seam covering plate and a door plate frame, the surface of the seam covering plate and the surface of the door plate frame are both coated with fire-resistant coatings, the seam covering plate comprises a profile frame and rock wool, the inner side of the profile frame is filled with the rock wool, and the inner side of the profile frame is coated with the fire-resistant coatings. An inner cavity corresponding to the door plate frame is formed in the side face, facing the door plate frame, of the profile frame. According to the fire-resistant fire-fighting wood-plastic door, the structure of the wood-plastic door is subdivided into the seam covering plate and the door plate frame, flame-retardant structures such as rock wool are additionally arranged in the seam covering plate to delay combustion, the high-temperature resistance of the front face of the wood-plastic door is improved, and the possibility that the wood-plastic door serves as fuel to burn is reduced; and the cover plate and the fireproof strip are matched to expand and release at high temperature, so that the wood-plastic door can spontaneously release the flame retardant to delay combustion in a high-temperature state, and the fireproof capability of the wood-plastic door is effectively improved.

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

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.

The utility model relates to the technical field of fireproof glass, and discloses heat insulation type fireproof glass which comprises an outer frame body and a fixing frame, the fixing frame is arranged in the outer frame body, and sliding structures are arranged at the top and the bottom of the inner side of the outer frame body. A fireproof layer mounting groove, a heat insulation layer mounting groove and an explosion-proof layer mounting groove are formed in the top and the bottom of the inner side of the fixing frame, ceramic glass, a first interlayer, a second interlayer and tempered glass are arranged between the top and the bottom of the fixing frame, and sealing fireproof rubber strips are fixedly mounted on the outer sides of the ceramic glass and the tempered glass. Through the arrangement of the explosion-proof layer, the explosion-proof layer is strengthened, the explosion-proof layer has higher impact resistance and can resist external impact to a certain extent, and through the arrangement of multiple layers of different components, completeness and heat insulation can be kept at high temperature, spreading of fire and smoke is effectively blocked, the influence of fire on the indoor space is reduced, and the service life of the explosion-proof layer is prolonged. And meanwhile, the explosion-proof layer is matched to reduce personnel injury caused by glass explosion.

The utility model relates to the technical field of entrance doors, in particular to a sound insulation entrance door which comprises a door frame, a door body is connected to the inner side of the door frame through hinges, a door closer is fixed to the inner side of the door frame through screws, and the end, away from the door frame, of the door closer is connected with the inner side of the door body through screws. A sound insulation layer A for improving the sound insulation performance of the door body is fixed into the door body through screws, a sound insulation layer B is glued to one side of the sound insulation layer A, a sound insulation layer C is bonded to the side, away from the sound insulation layer A, of the sound insulation layer B, a flame-retardant layer B for improving the flame-retardant performance of the door body is fixed to the outer side of the sound insulation layer C through screws, and a flame-retardant layer A is bonded to the end, away from the sound insulation layer C, of the flame-retardant layer B; through the arrangement of the sound insulation layer A, the sound insulation layer B, the sound insulation layer C, the flame retardant layer A, the flame retardant layer B, the door closer, the damping spring, the supporting plate, the inner frame and the buffer groove, the problems that when an existing entrance door is used, the sound insulation and flame retardant performance of the entrance door is poor, and meanwhile the entrance door is inconvenient to protect are solved.

The utility model discloses a door frame broken bridge connecting structure of quick assembly, including load-bearing main frame, decoration auxiliary frame, thermal insulation broken bridge and locking screw, thermal insulation broken bridge is fixed between load-bearing main frame and decoration auxiliary frame through locking screw, thermal insulation broken bridge close to the bottom of the inner side of door leaf is provided with buckle groove, and the buckle groove is provided with the locking screw. The side, opposite to the buckle groove, of the heat insulation broken bridge is further provided with a connecting protrusion in a protruding mode, a buckle piece used for being fixedly connected with the decoration auxiliary frame is arranged in the buckle groove, the locking screw penetrates through the connecting protrusion and is fixedly connected into the buckle piece, and a sealing groove is formed among the buckle piece, the connecting protrusion and the bearing main frame. The door frame broken bridge connecting structure is reasonable in design, rapid and convenient assembly can be achieved, the strength is reliable after assembly, no exposed screws exist, and the aesthetic feeling of a product can be effectively improved.

The application discloses a composite passive window and a mounting method thereof, which comprises a first frame, a third frame, a second spacing strip, a third spacing strip, second heat insulation filling cotton, a second frame, a fourth frame, a first spacing strip, a fourth spacing strip, first heat insulation filling cotton, a first sealing element, a second sealing element, a fifth frame, glass, an outer frame assembly, heat insulation filling, a fixing assembly, a limiting assembly and a third sealing element. The composite passive window has excellent heat insulation performance, simple overall structure and is easy to assemble and use. The heat insulation filling is filled in the outer frame assembly to block the heat transfer between the indoor and outdoor, and two heat preservation lines are formed in the cross section in a non-exposed mode through the fifth frame, so that the heat insulation performance of the aluminum alloy window is improved without changing the width of the middle spacing strip of the broken bridge aluminum alloy profile, and the durability and stability of the whole window under the new structure system are ensured.

The invention relates to a double-layer heat insulation safety door and a heat insulation method thereof, and belongs to the technical field of safety doors. According to the double-layer heat insulation safety door and the heat insulation method thereof, the double-layer heat insulation safety door comprises a door frame and a door leaf, the door leaf is installed on the inner side of the door frame through a hinge and a lock, a double-layer rock wool board is installed in the door leaf in an embedded mode, an annular groove is formed in the surface of the door leaf, and a hidden sealing mechanism is installed in the annular groove in an embedded mode; the hidden sealing mechanism comprises a low-melting-point limiting frame, a fireproof heat-insulation sealing strip and a storage box, and the low-melting-point limiting frame and the fireproof heat-insulation sealing strip are both embedded and installed in the annular groove; the hidden sealing mechanism wraps and limits the fireproof heat-insulation sealing strip through a low-melting-point limiting frame, so that the fireproof heat-insulation sealing strip is isolated from oxygen, ultraviolet rays and chemical corrosives in air in daily use, material hardening, cracking and elastic attenuation are remarkably delayed, and the long-term sealing stability and the service life of the fireproof heat-insulation sealing strip are effectively maintained.

The utility model provides an escape platform fixing frame and an escape platform. The fixing frame comprises a fixing frame body formed by sequentially connecting an upper frame, a first side frame, a lower frame and a second side frame. The fixed frame body is arranged in a hole formed in the vertical face of a building. The lower frame is provided with a connecting device; the bearing platform is connected to the connecting device; when the bearing platform is located at the first state position, the bearing platform is connected to the connecting device, so that the bearing platform is arranged in the fixed frame body to block the hole; and when the bearing platform is located at the second state position, the bearing platform moves to the outer side of the building vertical face, the angle between the bearing platform and the fixed frame body reaches a preset angle value, so that a platform for escape personnel to stay is formed, and the problem that when an existing bearing platform is opened, a bearing structure needed by the bearing platform cannot meet the quality of the platform and the quality of the escape personnel is solved. And a space for arranging related accessories of the escape platform cannot be reserved, so that the bearing platform cannot meet the mounting condition.

The utility model discloses a high-precision non-dismantling self-heat-preservation mould frame device and a window opening structure comprising the high-precision non-dismantling self-heat-preservation mould frame device, the high-precision non-dismantling self-heat-preservation mould frame device comprises a plurality of mould frame section bar pieces, and the mould frame section bar pieces abut against one another end to end to be assembled into a frame structure so that the frame structure can be used for installing a main frame. The mold frame profile piece comprises a heat preservation layer, an auxiliary frame and a profile plate, the heat preservation layer is connected to one side or two sides of the auxiliary frame, and the profile plate is connected to the heat preservation layer and one end, back to the main frame, of the auxiliary frame and / or the side face of the auxiliary frame and used for being connected with a cast-in-place concrete wall. The window opening size precision control effect is effectively improved, the water seepage probability of the window frame is reduced, the heat preservation and heat insulation effects are achieved through the heat preservation layer, and the energy-saving effect of the high-precision disassembly-free self-heat-preservation mold frame device is further improved. Meanwhile, the overall structural strength is improved, the requirements for bearing and reliable connection of the main frame are effectively met, and the installation precision is further improved.

The invention discloses a cold-bridge-free steel-plastic window, and relates to a novel steel-plastic combined energy-saving window. The novel steel-plastic combined energy-saving window has the advantages of heat insulation, sound insulation, aging resistance, thermal change prevention, comprehensive improvement of safety and fire protection performance, high overall strength and long service life. The product comprises a plastic window body, a thermal insulation cover body is connected with the plastic window body to form a window main body, the thermal insulation cover body is fixed on the outer side of the plastic window body, a thermal insulation cavity is arranged between the thermal insulation cover body and the plastic window body, and a thermal insulation layer is arranged in the thermal insulation cavity. The product is used for replacing a traditional plastic steel window.

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.

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.

The invention relates to an armored fire door comprising a frame and at least one opening leaf, the opening leaf comprises a wooden base panel comprising an external face intended to form an external face of the fire door and an internal face opposite the external face, the internal face and the external face being connected to each other by an edge, at least part of the internal face and at least part of the edge being covered by a metal armoring coating having a first face arranged facing the base panel and a second face opposite the first face. The opening leaf comprises a fire panel bonded by an incombustible glue between the internal face of the base panel and the first face of the metal armoring coating and at least part of the edge of the opening leaf comprises a non-combustible wool seal arranged between the base panel and the first face of the metal armoring coating.

The utility model relates to the technical field of fireproof rolling shutter doors, and provides a double-track steel fireproof rolling shutter door which comprises a control box, rolling shutter door bodies are arranged on the two sides of the bottom end of the control box, guide rails are symmetrically connected to the two ends of the rolling shutter door bodies in a sliding mode, and each guide rail is fixedly connected with the bottom end of the control box. A driving assembly is arranged in the control box and used for driving the roller shutter door body, a cooling assembly is arranged on the inner side of the driving assembly and used for cooling the roller shutter door body, and smoke absorbing assemblies are arranged on the two sides of the bottom end of the control box and used for absorbing smoke in a fire scene. The smoke absorption assembly comprises a box body fixedly connected to the outer wall of the bottom end of the box body, and a plurality of smoke suction nozzles are embedded in the two ends of the box body, the smoke on site is diluted, the concentration of the smoke on site is reduced, and the amount of smoke inhaled by an escape human body is reduced.

The utility model relates to the technical field of fire-resistant windows, in particular to a novel fire-resistant window which comprises a fire-resistant window frame, a fire-resistant window sash is arranged in the fire-resistant window frame, fire-resistant glass is arranged in the fire-resistant window sash, and a fire-resistant edge strip is arranged at the joint of the fire-resistant glass and the fire-resistant window sash. A hollow-square-shaped cavity is formed in the fireproof window frame, a multi-reinforcing flame-retardant structure is arranged in the cavity, and the multi-reinforcing flame-retardant structure is used for enhancing the strength of the fireproof window frame and is filled with flame-retardant materials. Through the composite structural design of the reinforcing plates and the reinforcing ribs, high-temperature thermal stress can be effectively dispersed, the window frame is prevented from being distorted and deformed due to thermal expansion, and the window frame is particularly suitable for mechanical challenges of high-rise buildings in strong wind pressure environments; the window frame made of the galvanized cold-rolled steel sheet has both strength and corrosion resistance, and the design of the hollow-square-shaped cavity is matched, so that the overall bending resistance is improved, and the fire endurance is prolonged.

The utility model discloses a heat-insulation expansion high-temperature-resistant fireproof door frame which comprises a door frame body, polyurethane heat-insulation strips, right-angle fixing pieces and arc-shaped heat conduction strips, the door frame body is composed of a first frame and a second frame, and a first heat-insulation filling strip, a second heat-insulation filling strip and a third heat-insulation filling strip are arranged in the first frame and the second frame. The right-angle fixing pieces are welded to the first frame and the second frame, and the arc-shaped heat conduction strips are fixedly connected to the surface of the first frame. The width of the first frame is larger than that of the second frame, the second frame serves as a fire receiving face of the door frame, heat absorbed by the door frame can be reduced, heat conducted by the second frame is dissipated through the first frame and the aluminum strips, the heat dissipation capacity of the door frame is improved, and the heat insulation capacity is good. The first heat-insulation filling strip, the second heat-insulation filling strip and the third heat-insulation filling strip are separated by the polyurethane heat-insulation strips, so that a plurality of heat-insulation barriers can be formed, heat conduction is blocked, and the temperature of the door frame is reduced.