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Roller assembly
Disclosed herein is a roller assembly for a sliding panel, the roller assembly including at least one roller sub-assembly having at least one roller wheel, the roller sub-assembly comprising at least one pivotal arm and a roller wheel rotatably mounted to the arm, wherein one end of the arm is configured for pivotally attachment to the support to permit the arm and roller wheel to pivot relative to the support in a vertical plane and the opposite end of the arm has resilient suspension means configured to allow resilient pivotal movement of said opposite end relative to the support when a force is applied to the roller wheel.
Owner:ANTHONY INNOVATIONS
Primary and secondary fusion complete ring main unit
ActiveCN119627661Aeasy to openEasy to fixWing fastenersSubstation/switching arrangement casingsClassical mechanicsStructural engineering
The invention discloses a primary and secondary fusion complete ring main unit, and relates to the technical field of ring main units, the primary and secondary fusion complete ring main unit comprises a box body, the front and back surfaces of the box body are connected with front doors, the two opposite side surfaces of the box body are hinged with side doors, the front doors comprise two sliding doors and rotating doors hinged with the sliding doors, the sliding doors are slidably connected with the box body, and the rotating doors are hinged with the sliding doors. A door locking device is arranged between the two rotating doors, the rotating doors are connected with clamping blocks, and clamping grooves allowing the clamping blocks to be inserted therein are formed in the outer sides of the sliding doors. When the front door needs to be opened for maintenance, the door locking device is opened, the rotating door is pulled to rotate by 180 degrees to be attached to the sliding door, the clamping block is inserted into the clamping groove, the rotating door and the sliding door are relatively fixed, and internal electrical equipment is exposed. The front door combines the advantages of a sliding door and a rotating door, is convenient to open and fix, and is suitable for being applied to the front door with the width larger than 3 m.
Owner:ZHEJIANG HUBIAN ELECTRIC POWER TECH CO LTD
Electric roller shutter door
The invention discloses an electric roller shutter door. The electric roller shutter door comprises a support assembly, a roller shutter door body and an electric roller shutter door body, the roller shutter door piece comprises a plurality of door piece bodies, the door piece bodies are sequentially connected in series, and the ends, in the length direction, of the door piece bodies are movably connected to the support assembly; the transmission shaft is inserted between the two adjacent door sheet bodies, the transmission shaft is provided with a protruding part protruding out of the roller shutter door sheet, and the protruding part is located in the track of the support assembly; the driving assembly is connected with the support assembly, and the driving assembly is matched with the transmission shaft so as to drive the roller shutter door piece to move along the track of the support assembly; and the at least one clearance compensation piece is connected with the two protruding parts located on the same side of the roller shutter door piece. In this way, the operation stability of the electric roller shutter door can be improved, noise can be reduced, and the service life of the electric roller shutter door can be prolonged.
Owner:ZHONGSHAN AUTO ELECTRONICS TECHNOLOGY CO LTD
Coal mine ventilation air door structure
The utility model discloses a coal mine ventilation air door structure, which relates to the technical field of coal mine ventilation, and comprises a door frame and door plates, the inner side of the door frame is symmetrically provided with two groups of door plates, the bottom ends of the two groups of door plates are respectively provided with a rectangular groove, a sealing plate is accommodated in the rectangular groove, and a thread groove is arranged in the sealing plate. Through the arrangement of the sealing plate and the threaded rod, during use, filling of gaps between the bottom end of the door plate and the ground can be achieved through mutual matching of the sealing plate and the threaded rod, diffusion of harmful gas is prevented, normal drainage operation in a mine cannot be affected, and therefore the safety of the device during use can be effectively improved; and the U-shaped block and the rotating plate are arranged, in the using process, through mutual cooperation of the linkage block and the rotating plate, covering protection on the rotating rod and the rotating block can be achieved, dust and other sundries are prevented from being attached to the rotating block and the rotating rod, and therefore abrasion generated when the rotating rod rotates can be effectively reduced.
Owner:马健
Ultra-low energy consumption building structure based on light materials and intelligent construction method
InactiveCN119507593Areduce consumptionemission reductionGeometric CADMechanical apparatusInsulation layerControl system
The invention relates to the technical field of intelligent construction, in particular to an ultra-low energy consumption building structure based on light materials and an intelligent construction method.The ultra-low energy consumption building structure based on the light materials comprises an outer wall and a window, the outer wall is composed of a structural layer, a heat insulation layer, a waterproof layer, a heat preservation layer, a decoration layer and a plate buckle structure and used for heat preservation, heat insulation and control of indoor and outdoor heat exchange, and the window is composed of a window frame, glass and sealing strips. The fresh air heat recovery system is used for optimizing a heat transfer path, reducing heating, refrigeration and ventilation energy consumption of a building, preventing moisture from invading a room and avoiding wall mildew and structural damage, and the fresh air heat recovery system is composed of a heat exchange system, a power system, a filtering system, a box body and a control system and is used for ventilation, air exchange, air purification and indoor environment adjustment, so that the energy consumption of an air conditioning system is reduced, and the energy consumption of the air conditioning system is reduced. The energy-saving technology of light materials is adopted, energy consumption and carbon emission are reduced, the intelligent construction scheme is adopted, the construction period is shortened, and the construction cost is reduced.
Owner:BEIJING DAHAN CONSTRUCTION ENGINEERING CO LTD
Off-axis door assembly, door frame of off-axis door assembly and door leaf of off-axis door assembly
ActiveCN222478492UImprove sealingImprove sound insulationNoise insulation doors/windowsWindow/door framesJambMechanical engineering
The utility model discloses an off-axis door assembly, a door frame of the off-axis door assembly and a door leaf of the off-axis door assembly, the off-axis door assembly comprises the door leaf, the door frame and an inflation and deflation component, the door leaf is hinged to the door frame, at least one of the door leaf and the door frame is provided with a first sealing component capable of being inflated and deflated, and the door frame is provided with a second sealing component capable of being inflated and deflated. The inflating and deflating component is connected with the first sealing component, the inflating and deflating component is configured to be capable of inflating or deflating the first sealing component, the first sealing component has a bulging state and a deflated state, and the first sealing component in the bulging state is used for sealing between the door leaf and the door frame. The off-axis door assembly is good in sealing performance, and therefore the off-axis door assembly can have the good sound insulation performance, the good heat insulation performance and the like.
Owner:BEIJING PAIDAO TONGCHUANG E-COMMERCE CO LTD
Door extrusion type door opening and closing sealing device for cleaning and disinfecting machine
The utility model relates to a door extrusion type opening and closing door sealing device for a cleaning and disinfecting machine. A plurality of sets of driving connecting plates are hinged to the side walls of the inner door and the outer door, the inner door is installed on the outer door through the driving connecting plates and vertically ascends and descends along with the outer door, the driving connecting plates are in an inclined state when the inner door ascends and descends, and an inner door top frame which is kept still relative to the cleaning and disinfecting machine is arranged below the inner door. After the bottom face of the inner door abuts against the top face of the inner door top frame, the connecting plate is driven to be in a horizontal state, pressure is applied to the outer side face of the inner door, and the inner side face of the inner door abuts against the sealing door rubber strip. The inner door applies pressure to the outer door through the inner door, then the inner door is tightly attached to the sealing door rubber strip through the pressure transmitted by the outer door, multiple extrusion sealing is formed, leakage of water vapor and chemical substances in the cleaning and disinfecting process is effectively prevented, the sealing performance of the hatch is ensured, and therefore the cleaning and disinfecting efficiency and effect are improved.
Owner:LIANYUNGANG YOUYUAN MEDICAL EQUIP MFG
Continuous locking hinge assemblies and folding door assemblies including the same
A threshold assembly has an interior side, an exterior side opposite the interior side, a top side, and a bottom side opposite the top side and includes a substrate and a sill deck. The sill deck is attached to the substrate and includes a deck cover and a sill track. The deck cover may be positioned over a portion of the substrate. The deck cover extends towards the exterior side of the threshold assembly. The sill track has an attachment wall, an exterior wall, and a bottom wall, the attachment wall is positioned on an exterior side of the substrate. The exterior wall is positioned on an exterior side of the attachment wall and defines the exterior side of the threshold assembly. The attachment wall and the exterior wall define a channel therebetween with the channel being open upward and closed on the bottom by the bottom wall.
Owner:ENDURA PRODS INC
Door seal particle made of vinyl polyolefin elastomer material, preparation method and door seal
The invention provides a door seal particle made of a vinyl polyolefin elastomer material, a preparation method of the door seal particle and a door seal, and belongs to the technical field of compositions of polyolefin and high-molecular compounds. The door seal particles made of the vinyl polyolefin elastomer material are prepared from the following components in parts by weight: 20 to 50 parts of white mineral oil, 10 to 48 parts of polypropylene, 10 to 50 parts of vinyl polyolefin elastomer, 5 to 25 parts of calcium carbonate, 0 to 0.1 part of antioxidant and 0 to 0.1 part of lubricant, wherein the branching degree of the vinyl polyolefin elastomer is 70-130 branched chains per 1000 carbons, the weight-average molecular weight is 77000-52.1 thousand, the molecular weight distribution index is 1.5-3.0, and the melt index is 1-10 g / 10 min.
Owner:合肥中科科乐新材料有限责任公司
Component based frame and flexible sheet system for a large opening
A frame and flexible sheet system for an opening includes a top lineal track body with a top weather-stripping lineal, a bottom lineal track body, and an assembly component with articulating frame segment pair, swinging frame segment, and bottom weather-stripping lineals. The system further comprises an engagement and rolling component for the first top corner of the articulating frame segment pair, an engagement and pivoting component for the second top corner, and a bottom lineal track insert anchoring the bottom corner. The articulating frame segment pair is configured to hang from the top lineal track body. This system provides a versatile and efficient solution for enclosing and securing openings to spaces.
Owner:MARHAYGUE LLC
Glass vacuum cavity and manufacturing method
PendingCN120312067APolishing machinesOptical surface grinding machinesOptical processingHigh surface
The invention belongs to the field of advanced scientific devices integrating optics, quantum mechanics, atomic physics and a vacuum technology, and particularly relates to a glass vacuum cavity and a manufacturing method thereof.The manufacturing method includes the steps that the inner surfaces of window pieces are machined firstly, an inner working face with high surface shape precision can be obtained, and after the inner surfaces are machined, the four window pieces are plated with films, and the working faces are plated with antireflection films; the optical cement surface is plated with an optical cement auxiliary film, and the diffraction film is rubbed after the optical cement surface is plated with the film, so that the optical cement strength is ensured to be optimal. After every two of the four window sheets are subjected to optical cement deepening, the outer surfaces are processed, and when the outer surfaces are processed, the inner surfaces are protected, so that the quality of a film layer is not damaged. By means of the method that optical processing, film coating and optical cement deepening are conducted on the inner surface alternately, and then optical processing, film coating and optical cement deepening are conducted on the outer surface alternately, the glass vacuum cavity which is high in window piece surface shape precision, high in window piece parallel precision, high in combination strength and good in air tightness, and the film layer surface quality is not prone to pollution or damage can be machined.
Owner:XI AN SNP PRECISION OPTICS CO LTD
Steel magnetic suspension heat insulation bulletproof sliding door system
PendingCN119531707AOpen to save effortclose labor savingWing accessoriesSealing arrangementsPolyamideStructural engineering
The invention relates to the technical field of building doors, and discloses a steel magnetic suspension heat-insulation bulletproof sliding door system which comprises a heat-insulation polyamide door frame and a heat-insulation polyamide door frame installed on the ground. The sliding assembly is pre-embedded in the position, between the heat insulation polyamide door frames, on the ground; the door leaf is arranged on the sliding assembly and located in the heat insulation polyamide door frame; the sliding assembly comprises a water collecting tank body, two lower sliding tank bodies and a permanent magnet magnetic stainless steel rail, under the condition that no electric energy is used, when the door leaf needs to be moved, the door leaf is pushed to move through the handle controller, the door leaf drives the magnetic suspension movement device to move on the outer side of the permanent magnet magnetic stainless steel rail through the connecting beam, and the magnetic suspension movement device moves on the outer side of the permanent magnet magnetic stainless steel rail; the door leaf gets rid of the weight of the door leaf, the door leaf floats in the air and slides without friction, the door leaf is opened and closed in a more labor-saving mode, a user can push the door body to move with small force, and the door is convenient to use and practical.
Owner:JIANGSU WEILESEN METAL SECTIONS TECH CO LTD
Full-intelligent active sealing low-energy-consumption entrance door
The invention discloses a full-intelligent active sealing low-energy-consumption entrance door, and aims to provide an entrance door structure with active sealing performance, the sealing performance is better, the energy consumption is lower, the entrance door structure comprises a door frame and a door leaf, a door frame is arranged on the door frame, and a sealing air bag inflation and deflation device is arranged between the door frame and the door leaf. The sealing air bag inflation and deflation device comprises an air bag assembly arranged on the door frame in a matched mode, a controller arranged on the door frame and a door leaf driver, a transmission assembly is connected between the door leaf driver and the door leaf, the controller is in linkage connection with the air bag assembly, and when the door leaf is closed on the door frame under the action of the door leaf driver, the door leaf is inflated and deflated. The air bag assembly is automatically inflated and abuts against the door leaf, before the door leaf is opened under the action of the door leaf driver, the air bag assembly is automatically deflated and is arranged in the door frame, full-intelligent active sealing is achieved, good heat preservation and air tightness are achieved, a heat transfer system of the door leaf and the door frame is small, heat conduction of a door body system is small, and indoor energy consumption is effectively reduced.
Owner:ZHEJIANG XINGZHU TECH CO LTD
Steel double-leaf flood gate
Owner:SHANGHAI SENLIN SPECIAL TYPE STEEL DOOR
Anti-collision hollow glass
ActiveCN222558393UEasy to fixreduce impact forceClimate change adaptationBuilding braking devicesStructural engineeringMechanical engineering
Owner:WUHAN XINBO GLASS TECH CO LTD
Steel door with high sealing performance
ActiveCN222615183UImprove sealingeasy accessFireproof doorsSealing arrangementsJambMechanical engineering
The utility model discloses a steel door with high sealing performance, which comprises a door body and a door frame, the door body is connected with the door frame through a hinge, a plurality of fixing grooves are formed in the inner wall of the door frame, expansion sealing strips are fixedly arranged in the fixing grooves, a first moving assembly is arranged on the front side of the door frame, and a second moving assembly is arranged on the front side of the door frame. A first elastic sealing strip is arranged on the front side of the door frame through a first moving assembly, a second moving assembly is arranged on the front side of the door frame, and a second elastic sealing strip is arranged on the front side of the door frame through a second moving assembly. When the steel door is opened, the expansion sealing strip can rapidly and automatically expand to block a gap between the door body and the door frame, meanwhile, the first elastic sealing strip can be moved to be in contact with the door body and the door frame through the first moving assembly, the second elastic sealing strip can be moved to be in contact with the door body and the door frame through the second moving assembly, and therefore the sealing performance of the steel door can be improved conveniently; smoke is prevented from entering a room from a gap between the door body and the door frame.
Owner:LIUPANSHUI HONGGUO MEINAI SECURITY DOOR CO LTD
Electric airtight shielding ventilating window
InactiveCN119616344AImprove sealingWith shielding functionVentilation arrangementSealing arrangementsStructural engineeringElectric control
The invention relates to the technical field of ventilation windows, and discloses an electric airtight shielding ventilation window which comprises a shutter assembly, a ventilation assembly, an electric control assembly and an auxiliary maintenance assembly, the shutter assembly is located on the front side of the ventilation assembly, and the electric control assembly and the auxiliary maintenance assembly are located in the ventilation assembly. The auxiliary maintenance assembly is located on the rear side of the electric control assembly. The sealing frame is matched with the window plate, the sealing performance of the device can be effectively improved, and meanwhile the device can have a certain shielding function through the shielding performance of the shielding cellular board; when the outside is in a power-off condition, the storage battery temporarily supplies power to the controller, the electric push rod and the ventilation fan through the charging and discharging module, so that the device can normally work under special conditions; when the device needs to be overhauled, the turning plate is pulled backwards through the pull groove to be turned over, so that the rear window frame is opened, and at the moment, internal parts of the device can be overhauled conveniently.
Owner:ZHENJIANG JIEXIANG VEHICLE COMPARTMENT SYST ENG CO LTD
Door and window curtain wall heat preservation and heat insulation privacy performance adjusting device
The utility model discloses a door and window curtain wall heat preservation and heat insulation privacy performance adjusting device which is installed on the inner side of a glass system and comprises an outer-layer rolling film and an inner-layer rolling film, the upper end of each rolling film is wound on a rotating shaft, the lower end of each rolling film is connected with a heavy lower beam, the left end and the right end of each rolling film are slidably connected into corresponding rolling film guide rails, and sealing wool tops are arranged on the inner layers of the rolling film guide rails. Driving devices are mounted in the two rotating shafts; the film layers of the outer-layer roll film and the inner-layer roll film are respectively a transparent low-radiation sunshade film and a non-transparent inorganic heat insulation film; when the outer-layer roll film descends, the outer-layer roll film and the glass system define a first closed cavity through the first bottom plate; and when the inner-layer roll film descends, the inner-layer roll film and the outer-layer roll film define a second closed cavity through the second bottom plate. The door and window curtain wall is simple in structure and convenient to operate, heat preservation and heat insulation performance adjustment of the door and window curtain wall can be achieved at the same time, and privacy adjustment requirements are met.
Owner:SOUTH CHINA UNIV OF TECH
Quick splicing structure for door and window frame
The invention relates to the technical field of door and window accessories, in particular to a quick splicing structure for a door and window frame, which comprises a body, the body is of a right-angle structure, the corner of the body is sleeved with an annular liquid bag, the annular liquid bag is filled with colloid, and the annular liquid bag is provided with a puncture part. Elastic sealing rings are arranged at the two ends of the annular liquid bag, the two ends of the body are sleeved with supporting sleeves, the supporting sleeves can slide in the extending direction of the body, the end face of the end, facing the corner of the body, of each supporting sleeve is a first annular conical surface, and the small end of each first annular conical surface faces the annular liquid bag, so that the elastic sealing rings can be expanded while the annular liquid bag is extruded; and then the space between the two elastic sealing rings is sealed, along with continuous movement of the supporting sleeve, the two elastic sealing rings extrude the annular liquid bag inwards at the same time, the annular liquid bag is punctured under the action of the puncturing part, the space between the two elastic sealing rings is filled with colloid in the annular liquid bag, and therefore the sealing effect is guaranteed while operation is simplified.
Owner:FOSHAN XINHAOXUAN SMART HOME TECH CO LTD
Door assembly and components for providing electromagnetic compatibility (EMC) shielding
A door assembly provides EMC shielding to provide EMI / RFI protection. The door assembly has an EMC door frame, an EMC door, and EMC seals for maintaining a circuit between the door frame, the floor (e.g., threshold, flooring, etc.), and / or the door. The door assembly may also utilize one or more EMC elements (e.g., EMC tape, paint, adhesive, coatings, caulk, etc.) that may be used to create the circuits between the components of the door assembly and / or with other components of the building (e.g., between the door frame and the wall). The EMC shielding is used to reduce (e.g., limit, block, etc.) the levels of electrogenic interference (EMI) / radio frequency interference (RFI) radiation that is able to pass by the shielding. Moreover, the door assembly also provides improve additional door assembly performance (e.g., sound, weather, air flow, heat, cold, or the like abatement, energy harvesting, or other performance benefits).
Owner:AADG INC
Intelligent control anti-flooding protective air-tight door for entrance and exit of subway station
The invention discloses a subway station entrance and exit intelligent control anti-flooding protective airtight door, and relates to the technical field of civil air defense engineering protection, the subway station entrance and exit intelligent control anti-flooding protective airtight door comprises a door body, the door body comprises a door frame and a door leaf, the bottom of the door frame is opened, the door leaf is arranged in the door frame, and an electric airtight split hinge structure is arranged on the door frame; the electric closed split hinge structure is used for controlling the door leaf to be opened or closed, and a sealing structure is arranged on the door leaf and used for sealing the door body. Automatic opening or closing of the door leaf can be achieved, the convenience of opening and closing movement of the door leaf is enhanced, and meanwhile the watertight performance is further improved.
Owner:GUANGZHOU METRO DESIGN & RES INST CO LTD
Light threshold-free flood-proof protective air-tight door
The invention discloses a light threshold-free flood-proof protective air-tight door which comprises a threshold-free door frame, two door leaves and a sealing piece. A sealing plate is arranged at the bottom of the doorsill-free door frame and provided with an insertion hole. The two door leaves are hinged to the two sides of the doorsill-free door frame, and each door leaf comprises two panels and a honeycomb interlayer welded between the two panels; the sealing piece comprises a movable sealing strip, a butt joint sealing strip and a door frame sealing strip. The movable sealing strip is connected with the lower bolt, and when the lower bolt is downwards inserted into the insertion hole, the movable sealing strip seals a gap between the bottom of the door leaf and the sealing plate; the two butt joint sealing strips are arranged between the two door leaves respectively; the door frame sealing strip is arranged between the side face of the door leaf and the inner side of the doorsill-free door frame. When the two door leaves are closed, the two butt-joint sealing strips abut against each other, and the door leaves abut against the inner side of the doorsill-free door frame through the door frame sealing strips. By means of the arrangement, the doorsill-free design facilitating passing can be achieved, and high strength and good flood prevention and protection sealing performance can be achieved.
Owner:GUANGZHOU METRO DESIGN & RES INST CO LTD +2
High-leakproofness aluminum alloy door and window
The high-leakproofness aluminum alloy door and window comprises a door and window auxiliary frame and a sliding door, first gear transmission mechanisms are arranged at the upper end and the lower end of the inner side edge of the door and window auxiliary frame and connected with sealing strips, driving racks are arranged on the outer side faces of the upper end and the lower end of the sliding door, and the driving racks push the sealing strips to be tightly attached to the sliding door through the first gear transmission mechanisms when the door and window are closed; the two are adsorbed through magnetic attraction force; when the sliding door is closed, the push rods push the sealing plates to jack up and seal upwards through the second gear transmission mechanisms, and when the sliding door is opened, the torsion springs drive the sealing plates to reset and compress the elastic pieces; through mechanical and magnetic dual sealing and side edge and end face surrounding sealing, air and noise permeation is effectively prevented, heat transfer is reduced, the energy consumption pain point of a traditional sliding door and window is solved, and an efficient and economical technical scheme is provided for building energy saving.
Owner:JIANGSU BAIYU CONSTRUCTION IND CO LTD
Pet door inserts for window frames and sliding doors
Pet door inserts including a base panel system and an adjustment panel system. The base panel system includes a first and second base panels, a pet door, and a track. The pet door moveably mounts to the first base panel within a pet door opening and selectively covers the pet door opening. The second base panel is coupled to the first base panel along a first lateral side of the second base panel. The track extends longitudinally along a medial portion of the second base panel. The adjustment panel system is moveably mounted on the track and translates relative to the base panel system. The adjustment panel system includes a first adjustment panel defining a horizontal groove extending longitudinally along a medial portion of the first adjustment panel. The horizontal groove selectively receives the track to selectively mount the adjustment panel system to the base panel system.
Owner:WIDNER ALEXANDER
Threshold-free waterproof air-tight door
InactiveCN222686511UConstruction fastening devicesSealing arrangementsDoor thresholdArchitectural engineering
A doorsill-free waterproof air-tight door belongs to the related technical field of civil air defense equipment and comprises a door frame and a door leaf, the door leaf is hinged to the door frame and can be in water-tight contact with the two side edges and the top edge of the door frame in a closed state, and a door lock system is arranged on the door leaf and used for locking the door leaf on the door frame; a ground sealing assembly in linkage with the door lock system is further arranged on the door leaf, the ground sealing assembly comprises a ground sealing beam which is hinged to the door leaf and can turn over up and down relative to the door leaf, a sealing rubber strip which can deform under pressure is arranged on the bottom face of the ground sealing beam, and the ground sealing beam can make sealed contact with the door leaf and the ground at the same time. And the locking mechanism is linked with the ground sealing beam, so that the door can be quickly opened and closed, and extremely low leakage can be realized in a relatively long time. No matter at ordinary times or wartime, no threshold protruding out of the ground exists, a large number of people can pass through conveniently, a brand-new ground sealing mechanism is adopted for sealing the ground, and the threshold does not need to be moved or a door leaf does not need to be lifted.
Owner:GUANGZHOU METRO DESIGN & RES INST CO LTD
Fireproof heat-insulation energy-saving door and window structure
Owner:LIAONING XINWASEN METAL DOORS & WINDOW CO LTD
Steel-wood composite heat insulation fireproof door
The invention discloses a steel-wood composite heat insulation fireproof door, and relates to the technical field of fireproof doors. The steel-wood composite heat insulation fireproof door comprises a mounting frame structure, a fireproof door leaf structure is hinged to the inner side of the mounting frame structure, a protective observation window structure is arranged on the inner side of the fireproof door leaf structure, and a locking structure is arranged on the front side of the mounting frame structure. Through the arrangement of the fireproof door leaf structure and the combined design of the fireproof filling ceramsite layer, the fireproof perlite plate layer, the rock wool layer, the heat insulation cotton layer and the flame-retardant sealing layer in the fireproof door leaf structure, the strength and stability of the door body are enhanced, the heat insulation effect is remarkably improved, the fireproof filling ceramsite layer and the fireproof perlite plate layer serve as inner layer materials, and the fireproof filling ceramsite layer and the fireproof perlite plate layer serve as outer layer materials; the door body has excellent fire resistance and heat insulation performance, invasion of high-temperature flames and heat can be effectively blocked, the rock wool layer and the heat insulation cotton layer serve as middle layer materials, the heat insulation effect of the door body is further improved, and heat transfer is reduced.
Owner:GUANGDONG YUDUN FIRE PREVENTION TECH CO LTD
Door corner structure of rail transit stainless steel vehicle body door area, vehicle body and method
The invention discloses a door corner structure of a rail transit stainless steel vehicle body door area, a vehicle body and a method, solves the problems that in the prior art, a door corner reinforcing part at a vehicle door frame is unreasonable in structure arrangement and not easy to weld, and wall plate deformation is easily caused in the welding process, and has the beneficial effects that the structural strength of the door area is enhanced, and wall plate deformation is not caused. According to the specific scheme, the door corner structure of the rail transit stainless steel vehicle body door area comprises door corners arranged at the four corners of a vehicle door frame respectively, the door corners can be connected with wallboards on the outer side in a welded mode, each door corner is provided with a first face and an arc-shaped face, the bevel edge side of each first face is connected with the longer side of the corresponding arc-shaped face, and the first faces are flush with the outer surface of a door stand column; the first end of the door corner arc-shaped face and the first side of the first face are both connected with the vehicle door frame in a welded mode, the opposite side of the first end of the door corner arc-shaped face is the second end of the door corner arc-shaped face, and the second end of the door corner arc-shaped face and the second side of the first face are both connected with the vehicle door frame or the bottom frame in a welded mode.
Owner:CRRC QINGDAO SIFANG CO LTD
High-sealing-performance double-leaf explosion-proof door
ActiveCN222686518UConstruction fastening devicesSealing arrangementsStructural engineeringMechanical engineering
The utility model relates to the field of civil air defense engineering, in particular to a high-sealing-performance double-leaf explosion-proof door which comprises a frame body, a first door leaf and a second door leaf, the first door leaf and the second door leaf are both rotationally connected with the frame body, a first containing groove is formed in one end of the first door leaf, and a second containing groove is formed in one end of the second door leaf. After the first door leaf and the second door leaf are both rotationally closed, the first containing groove communicates with the second containing groove, a first elastic bag is arranged in the first containing groove, a second elastic bag is arranged in the second containing groove, and the first elastic bag and the second elastic bag both communicate with a water supply assembly. The first elastic bag and the second elastic bag abut against each other after being filled with water. The door has the following effect that the sealing performance of the first door leaf and the second door leaf after closing can be improved.
Owner:ZHEJIANG YINAN CIVIL AIR DEFENSE EQUIP CO LTD
Electric airtight door for bridge engineering
PendingCN119244125AImprove maintenance efficiencyachieve closurePower-operated mechanismBridge structural detailsBridge engineeringControl system
The invention discloses an electric air-tight door for bridge engineering, which relates to the technical field of air-tight doors and comprises a bridge body, a control system, a door opener, a door frame system, a door leaf system, a rotating system, a locking system, a transmission mechanism and a sealing mechanism. The door leaf system is fixed on the door frame system through a door leaf fixing frame; the bridge body provides frame fixing and supporting for the control system, the door opener, the door frame system, the door leaf system, the rotating system, the locking system, the transmission mechanism and the sealing mechanism, the door leaf system and the door frame system are connected together through the rotating system through a connecting rod assembly, and the door opener and the transmission mechanism provide and transmit power for the rotating system. The locking system and the sealing mechanism are used in cooperation to achieve overall locking and sealing of the electric air-tight door. The device is ingenious in conception, fast and stable in operation, safe and reliable, has the advantages of airtightness, heat preservation, impact resistance, wind prevention, dust prevention and the like, and has good market prospects and development space compared with the prior art.
Owner:SHENZHEN CHINA CHANNEL MANAGEMENT CENT