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1786results about "Building components" patented technology

Decorative panel and process for producing a panel

The invention relates to a decorative panel, in particular a floor, ceiling, building or wall panel, and a process and extrusion line for producing such decorative panel. The panel comprises at least one core layer and at least one decorative top layer, wherein at least one core layer comprises at least one structural core component and at least one balancing core component, wherein at least one structural core component comprises at least one mineral filler and at least one first polymeric composition and wherein at least one balancing core component comprises at least one second polymeric composition.
Owner:CFL HLDG LTD

Floor panel

A floor panel has a rectangular and oblong shape, and includes a substrate and a top layer provided on the substrate and forming a decorative side of the floor panel. The top layer is composed of a print provided on a carrier sheet and a transparent thermoplastic layer situated above the print. The substrate has a thickness from 2 to 10 millimeter and forms at least half of the thickness of the floor panel. The substrate is a polyurethane-based substrate and the transparent thermoplastic layer is polyurethane-based. The floor panel has a length of more than 1.1 meters and has a plurality of reinforcing layers situated outside the center line of the substrate. A reinforcing layer may be provided in combination with the substrate and the top layer.
Owner:UNILIN BV

Energy storage system and method

An energy storage system includes a crane and a plurality of blocks, where the crane is operable to move blocks from a lower elevation to a higher elevation (via stacking of the blocks) to store electrical energy as potential energy of the blocks, and then operable to move blocks from a higher elevation to a lower elevation (via unstacking of the blocks) to generate electricity based on the kinetic energy of the block when lowered (e.g., by gravity). The energy storage system can, for example, store electricity generated from solar power as potential energy in the stacked blocks during daytime hours when solar power is available, and can convert the potential energy in the stacked blocks into electricity during nighttime hours when solar energy is not available, and deliver the converted electricity to the power grid.
Owner:ENERGY VAULT INC

Glass curtain wall splicing device

The utility model belongs to the technical field of splicing devices, and particularly relates to a glass curtain wall splicing device which comprises a mounting box, a lifting handle is mounted at the top of the mounting box, an adjusting telescopic arm is rotatably mounted on the rear side of the lifting handle, the front end of the adjusting telescopic arm penetrates into the mounting box and is connected with a first gear, and a second gear is rotatably mounted in the mounting box. The adjusting telescopic arm comprises a first telescopic arm body and a second telescopic arm body, one end of the first telescopic arm body is connected with a positioning rack, the positioning rack is connected with the second telescopic arm body in an inserted mode, a positioning block telescopic cavity is formed in the front side of the second telescopic arm body, and a positioning block is installed in the positioning block telescopic cavity in an inserted mode. A spring is installed on the inner side of the positioning block telescopic cavity, a rotating shaft is connected to the rear side of one end of the second telescopic arm, and corner fixing sockets are connected to the rear two sides of the rotating shaft, the use safety of the device is greatly improved, glass falling caused by infirm suction of the suction cup is avoided, and the effect of protecting the corners of the glass is also achieved.
Owner:中建三局集团西北有限公司

Fabricated thermal insulation wall with cold and heat adjusting function

The invention belongs to the technical field of assembly type walls, and particularly relates to an assembly type heat preservation wall with a cold and hot adjusting function, which comprises a frame, an outer wallboard and an inner wallboard, the outer wallboard and the inner wallboard are respectively fixed on two sides of the frame, a water tank is fixed on the inner wall of the bottom of the frame, and a water inlet pipe and a water outlet pipe are respectively arranged at two ends of the water tank. A bottom plate is fixed to the inner wall of one side of the water tank, a water pump is fixed to the top of the bottom plate, the water outlet end of the water pump is connected with the water outlet pipe, a heat conduction pipe fixed to the frame is further arranged in the frame, the two ends of the heat conduction pipe are connected with the water inlet pipe and the water outlet pipe respectively, and a refrigerating device and a heating device are further fixed in the water tank. According to the indoor air conditioner, when indoor cooling is needed, the refrigerating device and the water pump are started, when indoor heating is needed, only the heating device and the water pump need to be started, then the water pump pumps water in the water tank into the heat conduction pipe from the water outlet pipe, the water flows along the heat conduction pipe and flows back into the water tank, and the indoor temperature can be reduced or increased through the circulation.
Owner:浙江航瑞建设有限公司

Fireproof bimetallic composite panel and preparation method thereof

The invention relates to the field of bimetallic composite plates, and discloses a fireproof bimetallic composite plate and a preparation method thereof. The preparation method comprises the following steps: selecting an aluminum plate as a base layer, covering a polymer film on the upper surface of the aluminum plate to form an adhesive layer, covering a copper plate on the upper surface of the adhesive layer, and compounding the fireproof bimetallic composite plate under a temperature condition of 150-200 DEG C; the polymer film comprises: ethylene-vinyl acetate copolymer, epoxy resin, polymethyl methacrylate, modified poly(methyl methacrylate glycidyl ester), composite filler, and polyamide; the bimetallic composite plate prepared by the invention is prepared by covering the copper plate on the aluminum plate through the polymer film, the polymer film is added with composite filler and modified poly(methyl methacrylate glycidyl ester), the peel strength and mechanical properties of the polymer film are improved, the anti-oxidation and corrosion resistance are good, and the flame retardant property and fireproof grade are high.
Owner:JIANGSU ALUMGQI NEW MATERIAL TECH CO LTD

Prefabricated panel and rectangular tube

ActiveCN222796862UBuilding components
The utility model provides a prefabricated panel and a rectangular tube. The prefabricated panel comprises an integrally formed panel component, the plate component is composed of a C-shaped plate, an upper bent plate and a lower bent plate. The upper bent plate is arranged at the tail end of an upper plate of the C-shaped plate in a V-shaped bent mode, and the lower bent plate is arranged at the tail end of a lower plate of the C-shaped plate in a V-shaped bent mode. The upper bending plate and the lower bending plate have the same bending angle and can be further laminated and fixed on the C-shaped plate; the stability and the bearing capacity of the whole structure can be effectively enhanced through further V-shaped bending arrangement and an overlying fixing mode of all the bending parts, so that the prefabricated plate is more stable and reliable when bearing loads, and due to the fact that the upper bending plate is arranged at the tail end of the upper plate of the C-shaped plate, and the lower bending plate is arranged at the tail end of the lower plate of the C-shaped plate, the stability and the bearing capacity of the prefabricated plate are improved. The whole integrally-formed plate component is compact in structure, space utilization is optimized, the structural layout is reasonable, and the plate component is suitable for construction projects with limited space.
Owner:HAOHENG (FUJIAN) BUILDING MATERIALS TECH CO LTD

Fireproof bimetal composite plate and preparation method thereof

The invention relates to the field of bimetal composite boards, and discloses a fireproof bimetal composite board and a preparation method thereof.The preparation method comprises the following steps that an aluminum board is selected as a base layer, the upper surface of the aluminum board is coated with a polymeric membrane to form a bonding layer, the upper surface of the bonding layer is coated with a copper board, and the fireproof bimetal composite board is prepared through compounding at the temperature of 150-200 DEG C; the polymeric membrane comprises an ethylene-vinyl acetate copolymer, epoxy resin, polymethyl methacrylate, modified polyglycidyl methacrylate, a composite filler and polyamide. The bimetallic composite plate prepared by the invention is prepared by coating the copper plate with the polymeric membrane on the aluminum plate; the composite filler and the modified polyglycidyl methacrylate are added into the polymeric membrane, so that the peel strength and the mechanical property of the polymeric membrane are improved, and the polymeric membrane is excellent in oxidation resistance and corrosion resistance and high in flame retardant property and fireproof grade.
Owner:JIANGSU ALUMGQI NEW MATERIAL TECH CO LTD

Mechanical locking system for floor panels

Building panels provided with a locking system for vertical and horizontal locking of a first edge and a second edge of adjacent panels. The locking system includes a displaceable tongue at least partly arranged in a displacement groove, a tongue groove, a cavity provided in a strip at the first edge, and a protrusion extending downwards at the second edge. The displaceable tongue is arranged to be displaced at least partly into the tongue groove during locking, and wherein the protrusion is arranged to be located in least a portion of the cavity when the panels are locked vertically and horizontally.
Owner:CERALOC INNOVATION AB

System, panel and method

A system for building a play area can include two or more panels, each of the two or more panels including a connector and at least one magnet positioned in the connector such that the at least one magnet is able to rotate, the at least one magnet including first and second magnets housed in respective first and second ends of the connector, the at least one magnet including at least one cylindrical magnet, the at least one cylindrical magnet being diametrically magnetized; and first and second dowels connected by the connector; each of the two or more panels being configured such that when at least one edge of each of the first and second panels are brought towards each other from any direction, the at least one magnet in each panel orientates such that a magnetic connection is formed between the two or more panels.
Owner:EVERPLAY LABS LTD

Adjustable foam-penetrating nail gun

An improved nail gun with the standard gun tip is replaced with a hollow sheath tip or housing through which a hollow insertion driver or sheath extends. The outmost portion of the insertion driver penetrates attached material, such as a foam layer, on the surface of a multi-layer panel product, such as, but not limited to, a structural sheathing panel. The outermost end of the insertion driver comes into contact with the panel surface, and the user operates the gun to drive a nail or other fastener into the panel. The insertion driver is of a length suitable to fully penetrate the foam layer so that the head of the nail is properly seated on the panel surface, and also protects the attached material in the area from being broken or damaged by the pneumatic action of the gun.
Owner:LOUISIANA PACIFIC CORP

Panel

A floor, wall or ceiling panel comprises a core and a decorative top layer provided on the core. The core comprises a magnesium oxide-based board material, and wherein the aforementioned panel, on at least two opposite edges, is provided with coupling means allowing that two of such panels can be interlocked at the respective edges.
Owner:UNILIN BV

Automatic wall-building machine using special wall bricks

The present invention relates to the technical field of automation of construction engineering, and discloses an automatic bricklaying machine using special wall bricks. The special wall brick is a rectangular parallelepiped, with a concave top surface, a convex bottom surface, two long side surfaces being planes, and two wide side surfaces being concave. The wide side surface is provided with a grabbing groove of a mechanical claw of the automatic bricklaying machine. The fully automatic bricklaying machine comprises a bricklaying system, a brick supply system, a grouting system, a positioning and ranging system, a power supply system, and a PLC system. The PLC system moves the multi-section mechanical arm and the mechanical claw of the bricklaying system, and with the help of the positioning and ranging system, the mechanical claw extends into the grabbing groove, grabs the special wall bricks from the brick supply system, and then lays them on the wall. The PLC system starts the mortar pump of the grouting system, opens the electric valve at the nozzle outlet, and uses the mortar pipe to pour the mortar in the mortar storage tank into the concave part of the top surface of the special wall brick and the vertical gap at the horizontal connection of the special wall brick. The automatic bricklaying machine of the present invention has a high degree of automation and strong practicality.
Owner:邓钰灵

Quick connecting device for color steel sandwich panel

The utility model relates to the technical field of building materials, and solves the problems that when a worker installs and assembles a color steel sandwich plate and a good medical color steel sandwich plate, the color steel sandwich plate and the good medical color steel sandwich plate are mostly installed by screws, so that subsequent disassembly is inconvenient, and when the worker installs the color steel sandwich plate and the good medical color steel sandwich plate at corners, the worker needs to replace a connecting device, so that the applicability of the connecting device is poor. The quick connecting device comprises a connecting block, a sliding groove is formed in the top face of the connecting block, an adjusting rod is slidably connected into the sliding groove, a mounting block is fixedly connected to one side of the surface of the adjusting rod, and clamping plates are fixedly connected to the two sides of the surface of the connecting block. A fixing assembly is arranged on the surface of the clamping plate, the fixing assembly comprises a screw rod, the surface of the screw rod penetrates through the middle of the surface of the clamping plate in a threaded mode, one end of the screw rod is rotationally connected with a fixing plate, an anti-skid block is attached to the surface of the fixing plate, and the anti-skid block is made of a flexible material.
Owner:AN HUI TAI JING KE JI YOU XIAN GONG SI

Intelligent building structure planner

A method for automatic panel design and fabrication includes receiving a twodimensional or three-dimensional architectural plan for a building, converting the architectural plan into a first data file that contains information about a location, length, and style of each wall included in the architectural plan, obtaining, from the first data file, a list of walls to automatically generate a second data file that contains a list of panels to be constructed for each of the list of walls, and generating a set of commands for each of panels in the list and transmitting the set of commands to a robotic builder, to allow the robotic builder to automatically build each of the panels in the list.
Owner:BOTBUILT INC

ALC (autoclaved lightweight concrete) and other lightweight board structures suitable for various pipelines without grooving and quick installation and construction technology

The invention relates to an ALC (autoclaved lightweight concrete) and other lightweight board structure suitable for various pipelines without slotting and quick installation and a construction technology. The structure consists of an ALC standard type (3), an ALC switch box type (9), cavities (2) and (5) reserved in the board, a reserved body (8), cavities (1) and (4) reserved at the upper part and the lower part of the board, and a fixed point (19); various plate body structures have universality, and after a manufacturer is authorized, batch production can be achieved like production of ALC plates in the prior art; the method is suitable for construction of inner partition walls and outer maintenance walls of fabricated buildings and traditional buildings; by the adoption of the construction technology, the influence of whether the position of a reserved pipe of an original structure is accurate or not, design change, field adjustment and the like can be avoided, a pipeline, a switch, a socket, a strong and weak current switch box body, a heating device, a water supply centralized distributor and the like can be installed in the ALC plate wall without grooving, and the ALC plate wall is free of grooving, safe, free of garbage generation, environmentally friendly, capable of saving energy, convenient to construct and high in practicability. Economy is achieved, and wall cracking is avoided.
Owner:文俊值

Wall building system

A wall building system includes panels for walls, floors, ceilings, roofs, eaves, and lofts that positively couple together via one or more couplers. The panels may include an insulating core. The one or more couplers incorporate features for receiving plumbing, vents, drains, electrical, coax, CAT5, HVAC, and any other utilities or technology. The panels are designed such that the utilities are concealed until an electrical outlet, drain or water is required, at which time the panel is cut to expose the one or more couplers, which are subsequently cut to reveal a hollow cavity within. The system is aesthetically pleasing and reduces construction time considerably. The system is also extremely energy efficient, fireproof, soundproof, insect proof, virus proof, resists hurricane force winds, is EMP proof, fallout proof, can support a heavy snow load, and is faster to build with and structurally stronger than other construction methods.
Owner:RECORD SCOTT

Load-bearing framework and shielding panel integrated electromagnetic shielding chamber

The invention relates to the technical field of electromagnetic shielding rooms, and discloses a load-bearing framework and shielding panel integrated electromagnetic shielding room, which comprises a first structural shielding unit and a second structural shielding unit, the first structural shielding unit and the second structural shielding unit are alternately arranged, the first structural shielding unit comprises a first load-bearing framework, and the second structural shielding unit comprises a second load-bearing framework. The first structural shielding unit comprises a first load-bearing frame, the second structural shielding unit comprises a second load-bearing frame, the edges of the adjacent first load-bearing frame and second load-bearing frame are spliced through a multi-dimensional interlocking structure, so that an electromagnetic shielding room load-bearing framework is defined, and the splicing seam of the first load-bearing frame and the second load-bearing frame is provided with at least one zigzag electromagnetic wave attenuation path. The load-bearing frames and the electromagnetic shielding function are deeply integrated, the first load-bearing frame and the second load-bearing frame are mechanical load-bearing components, electromagnetic shielding is achieved through zigzag electromagnetic wave attenuation paths of the splicing seams and the magnetic conductive filling materials, an independent shielding framework does not need to be additionally arranged, and the overall structure is simplified.
Owner:ZHEJIANG ZHISHENG AUTOMATION ENG CO LTD

Bionic wallboard unit and preparation method thereof

The bionic wallboard unit comprises a heat preservation layer, a bearing layer, a heat insulation layer and a protection layer, and a plurality of honeycomb cavities are formed in the outer side of the heat preservation layer; the bearing layer is arranged on the outer side of the heat preservation layer, and a plurality of parallel reinforcing protruding ribs are arranged on the outer side of the bearing layer. The heat insulation layer is sprayed on the outer side of the bearing layer and is used for bonding the bearing layer and the protection layer, so that the connection between the heat insulation layer and the bearing layer and the connection between the heat insulation layer and the bearing layer are jointly ensured by the chemical bonding force between the heat insulation layer and the bearing layer and the mechanical occlusal force formed by the reinforcing convex ribs; the protection layer is arranged on the outer side of the heat insulation layer, and a plurality of grooves matched with the reinforcing protruding ribs are formed in the inner side of the protection layer in parallel. Each layer structure of the wallboard unit provided by the embodiment is connected in parallel, the function is independent, and the function failure of the whole wallboard caused by the failure of a single layer structure can be avoided; the partition design of the inner cavity structure and the outer heat insulation coating reduces the heat transfer coefficient of the wallboard, and simultaneously reduces the thickness of the cavity and the thickness of the coating, so that high heat preservation is realized by the thin wallboard.
Owner:LINDU LVJIAN (JIANGSU) ENG DESIGN & RES CO LTD

Method and system of assembling a modular building

The present disclosure concerns a modular construction system, a panel for a modular construction system, and a method for reducing the thickness of a panel to control cumulative errors at joints. The
Owner:DREW MUNDEN

Adjustable foam-penetrating nail gun with tip locking mechanism

An improved nail gun with the standard gun tip is replaced with a hollow sheath tip or housing through which a hollow insertion driver or sheath extends. The outmost portion of the insertion driver penetrates attached material, such as a foam layer, on the surface of a multi-layer panel product, such as, but not limited to, a structural sheathing panel. The outermost end of the insertion driver comes into contact with the panel surface, and the user operates the gun to drive a nail or other fastener into the panel. The insertion driver is of a length suitable to fully penetrate the foam layer so that the head of the nail is properly seated on the panel surface, and also protects the attached material in the area from being broken or damaged by the pneumatic action of the gun.
Owner:LOUISIANA PACIFIC CORP

Angle-adjustable interlocking retaining wall brick

The utility model provides an angle-adjustable interlocking retaining wall brick which comprises a main body, a splicing locking male tongue-and-groove and a splicing locking female tongue-and-groove are fixedly arranged at the two ends of the main body respectively, and an upper locking tongue-and-groove and a lower locking tongue-and-groove are fixedly arranged on the top surface and the bottom surface of the main body respectively. Chamfering parts are arranged on the two sides of the splicing locking female rabbet at the same time, the chamfering parts are located on the two sides of the two ends of the main body at the same time, and a vertical through hole is formed in the surface of the main body in a penetrating mode. By means of the upper locking rabbets and the lower locking rabbets which are arranged in a matched mode, the effect that every two layers of wall bricks are mutually overlapped and meshed is achieved when brick bodies are overlapped and built, a camber angle with a certain angle is formed, and in the building process, when a plurality of brick bodies are overlapped and built, the wall bricks are not prone to falling off. Stacked brick bodies are meshed up and down through the upper locking rabbets and the lower locking rabbets, so that stability and positioning during stacking and building are guaranteed, and mortar cementation is not needed during mounting and building.
Owner:ZHUHAI RONGLI NEW BUILDING MATERIALS CO LTD

Method and apparatus for making a gypsum board

A method and apparatus to manufacture gypsum board that directs an aqueous gypsum slurry to a second cover sheet, and passes the second cover sheet over a roller spaced above a first cover sheet so that a majority of the aqueous gypsum slurry of falls off the second cover sheet to deposit over the first cover sheet. Another aqueous gypsum slurry of a different density than the deposited slurry is applied over the first cover sheet before and / or after the deposited slurry. A gypsum board having layers of different densities is made by the method and apparatus.
Owner:KNAUF GIPS KG

Recycled aggregate concrete dense rib hollow three-dimensional planting wall and wall body

The utility model discloses a recycled aggregate concrete dense rib hollow three-dimensional planting wall which comprises a planting wall body, a plurality of hollow building blocks are arranged on the planting wall body, a plurality of placing through holes are formed in the hollow building blocks, and a plurality of planting boxes are detachably inserted into the placing through holes. As an assembly type building, the whole wall body is processed and completed in a factory, when the wall body is used, the wall body only needs to be hoisted to a corresponding position, meanwhile, corresponding planting boxes can be added, different crops can be planted, the attractiveness of the wall body is improved, meanwhile, the planting area can be increased, and due to the fact that the planting boxes are detachable, the wall body is convenient to use. Different shapes can be designed, meanwhile, when typhoons come in coastal areas, the planting boxes can be detached, the containing through holes of the hollow building blocks become ventilation through holes, and the wind resistance of the hollow building blocks is improved.
Owner:HUNAN CHENGYOU GREEN BUILDING MATERIAL TECH CO LTD +1

Non-contact actuation assembly

A non-contact actuation assembly configured to operate a communication line of an infrastructure system through a panel having an external face configured to be directed into an interior of a building structure, and an opposite internal face, said assembly comprising; an actuator configured to be positioned adjacent said external face by a user during operation, said actuator comprising an actuating member constituted by at least one of a magnetic member and a magnetizable member; and an operator configured to be disposed adjacent said internal face during operation, and control communication at said communication line, said operator comprising an operating member constituted by a matching one of said magnetic member and said magnetizable member; wherein upon said positioning of said actuator adjacent said external face, in register with said operator, said actuating member and said operating member are configured to be magnetically coupled such that said operator is switchable, upon disposition of said actuator member with respect to said external face, at least between a first state in which communication in said communication line is established and a second state n which communication in said communication line is obstructed.
Owner:WALL TO WALL LLC

A wall panel connection assembly for an assembled medical clean room

The present application relates to the field of building assembly, and in particular to an assembled wall panel connection assembly for medical clean rooms, which is arranged between a prefabricated board and a wall panel, and includes a fixing piece slidably connected to the opposite ends of the prefabricated board and a driving assembly for driving the two fixing pieces to move relatively close to or away from each other. The wall panel is provided with a first fixing groove for the fixing piece to be embedded, and the fixing piece includes a first fixing plate slidably connected to the prefabricated board and a first clamping block fixed to one side of the first fixing plate. The first fixing groove includes a first clamping groove for the first fixing plate to be embedded and slide, and a second clamping groove located on one side of the first clamping groove and connected to the bottom of the first clamping groove; when the driving assembly drives the two fixing pieces to move away from each other, the first clamping block slides from the first clamping groove to the second clamping groove to fix the position between the prefabricated board and the wall panel. The present application can realize the rapid installation and disassembly of the wall panel without affecting the secondary installation of the wall panel.
Owner:BEIJING URBAN CONSTR GROUP

High-content phosphogypsum-based building block and preparation method thereof

The building block is prepared from the following raw materials in parts by weight: 30 to 60 parts of ardealite, 0.5 to 2 parts of lime, 10 to 30 parts of slag, 0 to 2.5 parts of silica fume, 0 to 2.5 parts of fly ash, 1 to 5 parts of cement, a water reducing agent with the mass ratio of 0.5 to 1.5 percent of ardealite, 8 to 12 parts of water, 10 to 20 parts of an acrylic acid metal salt mixed solution, 0.5 to 2.5 parts of a water repellent agent and 15 to 50 parts of aggregate, the acrylic acid metal salt mixed solution contains calcium ions or / and magnesium ions; through the in-situ polymerization synergistic effect among the cement, the lime, the inorganic active material and the acrylic acid metal salt solution, the inorganic-organic hybrid gel efficiently and stably solidifies the phosphogypsum, harmful ions are converted into insoluble and thermodynamically stable forms, and efficient and stable phosphorus, fluorine and heavy metal immobilization is achieved. The mixing amount of the phosphogypsum is as high as 30-60%, the building block has good mechanical properties, the 28-day compressive strength of the building block is greater than or equal to 30 MPa, and the breaking strength is greater than or equal to 3.5 MPa; and through surface modification treatment of the hydrophobic agent, a hydrophobic film is formed on the surface of the ardealite, the hydrophobic performance of the surface of the ardealite is enhanced, the water resistance of the ardealite is improved, and the water absorption rate of the building block is less than or equal to 5.0%. And the preparation process has the advantages of low cost, simplicity and convenience in operation, environment friendliness and the like.
Owner:CHONGQING JIAOTONG UNIV

Soundproof metal roof and laying method therefor

The present invention relates to the technical field of building boards, and particularly to a soundproof metal roof and a laying method therefor. The soundproof metal roof comprises a thermally insulating cotton board, wherein metal fastening plates are sleeved on both the upper and lower sides of the thermally insulating cotton board; assembly recesses are provided on both ends of each metal fastening plate; screwing half-columns are fixed to the surfaces of the assembly recesses, assembly plates are inserted into the assembly recesses, and the screwing half-columns penetrate the assembly plates; and adapter plates are fixed to the surfaces of the assembly plates, and every two adapter plates are connected by means of a screw. The beneficial effects lie in: the soundproof metal roof and the laying method therefor provided in the present invention effectively block a sound transmission path and significantly improve the soundproof performance of the roof by means of filling the interior of the metal fastening plates with soundproof plates. The soundproof plates are tightly combined with the metal fastening plates, thereby ensuring that sound does not easily penetrate same, and creating a quieter indoor environment.
Owner:CCCC THIRD HIGHWAY ENG CO LTD