A fast installation assembly type light steel integrated wallboard house system

Abstract

The application relates to the technical field of fabricated building, and provides a quick installation fabricated light steel integrated wallboard house system, which comprises a first wallboard unit, a second wallboard unit and a third wallboard unit. Each wallboard unit is prefabricated in a factory, and the structure of each wallboard unit comprises a light steel keel framework, rock wool filled in the framework, and OSB plates and cement fiber plates covered on both sides of the framework. The units are mutually inserted through the concave-convex notched galvanized steel plates preset at the end portions of the units, and are fastened and connected through connecting screws penetrating through the wall body and foot anchors at the bottom, so as to form a house wall body. The light steel keel truss beams and connecting plates are used to realize reliable connection between floors. The utility model realizes high factory production, standardization, quick and convenient on-site installation, reliable connection, good integrity and stability, and conforms to the green building concept.

Description

Technical Field

[0001] This utility model belongs to the field of prefabricated building technology, specifically relating to a rapid installation prefabricated light steel integrated wall panel house system. Background Technology

[0002] Prefabricated buildings have become an important direction for the development of the construction industry due to their advantages such as fast construction speed, low environmental pollution, and easy control of building quality. Light steel structure systems, as one of the important forms of prefabricated buildings, have been widely used. However, traditional on-site construction of light steel structure houses still involves a large amount of work such as framing, insulation material filling, and panel installation. These processes are complex, require high levels of worker skill, and there is still room for improvement in overall construction efficiency.

[0003] In existing technologies, such as the patent with publication number CN213773815U, a prefabricated house structure system based on composite insulated wall panels is disclosed. This system uses a U-shaped ground joist, corner steel columns, intermediate steel columns, and prefabricated exterior wall panels connected by interlocking. Although this solution improves the degree of prefabrication to some extent, it still requires a large amount of on-site steel column installation, joist welding, or screw fixing work, and the connection between the wall panels and steel columns is relatively complex. Its internal partition wall system also involves various types of joists and connectors, and the on-site assembly process is still quite extensive. In addition, the wall panels in this system mainly serve as the enclosure structure, and there is still room for improvement in their collaborative performance with the main load-bearing structure and their overall stability.

[0004] Therefore, there is an urgent need for a prefabricated housing system that is more integrated, easier and faster to install on-site, more reliable in connection, and has better overall integrity. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a rapid installation prefabricated light steel integrated wall panel housing system. This system significantly reduces on-site work by highly integrating the walls and prefabricating them in the factory. Through specific tongue-and-groove joints and screw connections, it achieves rapid, precise installation and reliable connection of wall panel units. Ultimately, it forms a prefabricated housing system with high construction efficiency, good overall stability, and environmental friendliness.

[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model proposes a rapid installation prefabricated light steel integrated wall panel housing system, including multiple prefabricated first wall panel units, second wall panel units, third wall panel units, light steel keel truss beams, and connecting bolts; each of the first wall panel units has vertical grooves at both opposite ends along its length; each of the second wall panel units has vertical grooves and tenons at both opposite ends along its length; each of the third wall panel units has vertical grooves and tenons at adjacent ends; multiple first wall panel units, second wall panel units, and third wall panel units are interlocked through the grooves and tenons. The components are assembled and connected as a whole using connecting bolts to form the first-floor wall of the house. The bottom of the first-floor wall is anchored to the foundation, and a light steel keel truss beam is installed on the top of the first-floor wall. A floor slab is laid on top of the light steel keel truss beam. A second-floor wall is installed on the floor slab. The second-floor wall is composed of multiple first wall panel units, second wall panel units, and third wall panel units that are interlocked by the grooves and tenons and connected by connecting bolts. The outer sides of the first-floor wall and the second-floor wall are also connected by connecting steel strips. A roof is installed on the top of the second-floor wall.

[0007] Furthermore, the bottom of the second-floor wall is connected to the floor slab via an L-shaped connecting plate.

[0008] The L-shaped connecting plate provides a large connection area, and the load of the second-floor wall can be securely transferred to the floor slab and the lower light steel truss beam using fasteners such as self-tapping screws, ensuring the continuity and reliability of vertical load transfer. This connection method is a dry operation, requiring only drilling and screw tightening on-site, making it simple and efficient.

[0009] Furthermore, both the first wall panel unit and the second wall panel unit include a light steel keel frame, rock wool, OSB board, and cement fiber board; the gaps in the light steel keel frame are filled with the rock wool; the outer sides of the light steel keel frame and the rock wool are connected to the OSB board; and the outer sides of the OSB board are connected to the cement fiber board.

[0010] The lightweight steel frame provides the main structural strength and rigidity; rock wool filling provides excellent thermal insulation and sound insulation performance; OSB board serves as the structural panel, enhancing the wall's in-plane shear strength; and cement fiberboard acts as the base layer for a weather-resistant decorative finish. The thermal performance of this composite structure far surpasses that of traditional walls, minimizing building energy consumption and meeting national energy-saving standards.

[0011] Furthermore, a PVC conduit is installed on the light steel keel frame; the connecting screw is inserted into the PVC conduit.

[0012] The pre-embedded PVC conduit provides a precise channel for the connecting bolts, avoiding errors from on-site drilling and ensuring that the connecting bolts can smoothly pass through adjacent wall panels, enabling rapid alignment and installation. The PVC conduit prevents the connecting bolts from directly rubbing or being squeezed by the rock wool, preventing damage to the insulation material and ensuring uniform stress on the bolts, achieving the design strength for the connection.

[0013] Furthermore, the light steel keel frame includes multiple light steel keels and tie rods connecting the multiple light steel keels as a whole.

[0014] Tie rods connect the independent light steel keels into a stable overall frame, preventing the keels from twisting or becoming unstable during transportation, hoisting and use, thus improving the overall rigidity of the wall panel unit.

[0015] Furthermore, the third wall panel unit includes a light steel keel frame, rock wool, OSB board, and cement fiber board; the light steel keel frame of the third wall panel unit is a hollow column structure, and the gaps are filled with the rock wool; the other two adjacent end faces of the third wall panel unit that are not provided with the groove and the tenon are provided with OSB board and cement fiber board in sequence from the inside to the outside.

[0016] The third wall panel unit is designed as a hollow column, enabling it to function like a structural column in key areas such as wall corners, significantly improving the load-bearing capacity and impact resistance of the joints. Its two exposed surfaces are also covered with OSB board and cement fiberboard, ensuring that the interior and exterior wall corners remain smooth and aesthetically pleasing, with continuous insulation and no thermal bridging.

[0017] Furthermore, the first wall panel unit, the second wall panel unit, and the third wall panel unit also include galvanized steel sheets; the galvanized steel sheets are bent to form the grooves and the tenons, and are connected to the light steel keel frame.

[0018] Galvanized steel sheets are high-strength and corrosion-resistant. The tongue-and-groove joints made from them provide a very strong and durable mechanical connection, ensuring the reliability of force transmission between wall panels. In the factory, galvanized steel sheets are cold-bent into precise grooves and tenons using molds, ensuring dimensional consistency of all unit connections, making on-site splicing quick, smooth, and with good sealing.

[0019] Furthermore, the bottom of the first-floor wall is connected to anchor bolts, which are anchored to the foundation.

[0020] Anchor bolts provide strong pull-out and shear resistance, firmly anchoring the wall to the concrete foundation and effectively resisting overturning moments caused by horizontal forces such as wind and earthquakes, ensuring the overall safety of the building. This connection method is a mature dry connection, with simple construction technology and easy quality control.

[0021] The beneficial effects of this utility model are as follows: all wall panel units (first, second, and third) are prefabricated in the factory with integrated keel, insulation, finishing, and connectors, transferring more than 80% of the traditional on-site work to the factory, fundamentally ensuring the consistency of product quality. Through standardized groove and tenon design, the wall panel units can be quickly and blindly connected on-site, like assembling building blocks, significantly reducing construction difficulty and reliance on skilled workers, and significantly shortening the construction period. The entire installation process is basically bolted and plugged in, eliminating the need for on-site wet work (such as pouring and masonry), greatly reducing construction waste, noise, and dust pollution, conforming to the green and low-carbon building concept. The wall not only serves as an enclosure structure, but also forms a stable load-bearing system through bottom anchoring, self-bolt connection, and top truss beam connection. The upper and lower walls are effectively connected through floor slabs and truss beams, making the house a well-integrated spatial structure with excellent seismic performance. Different floors can be built using the same wall panel unit modules, demonstrating the standardization and replicability of the system, which can flexibly adapt to various building forms such as low-rise villas and multi-story apartments. The connecting steel bands encircling the building further bind the dispersed wall panel units together, effectively improving the structure's ability to work together under horizontal loads (such as wind loads and seismic forces) and preventing wall collapse or deformation. The connecting steel bands can also conceal horizontal joints between floors, making the building facade cleaner and more aesthetically pleasing, while also serving as a decorative line in themselves. Attached Figure Description

[0022] Figure 1 This is a top view of the first-floor wall structure of the quick-installation prefabricated light steel integrated wall panel housing system of this utility model. Figure 2 This is a top view of the first wall panel unit of this utility model. Figure 3 This is a top view of the second wall panel unit of this utility model. Figure 4 This is a top view of the third wall panel unit of this utility model. Figure 5 This is a side view of the structure of the first-floor wall of this utility model; Figure 6 for Figure 5 A schematic diagram showing the connection and disassembly of a single-layer wall; Figure 7 This is a schematic diagram of the connecting screw of this utility model; Figure 8 This is a schematic diagram of the structure of the light steel keel frame of this utility model; Figure 9 This is a schematic diagram of the anchorage between the first-floor wall and the foundation of this utility model; Figure 10 This is a partial schematic diagram of the connection between the first-floor wall and the second-floor wall of this utility model; Figure 11 This is a structural schematic diagram of the light steel keel truss beam of this utility model; Figure 12 This is a side view of the housing system of this utility model.

[0023] In the diagram: 100 - First floor wall; 1 - First wall panel unit; 2 - Second wall panel unit; 3 - Third wall panel unit; 4 - Light steel keel truss beam; 5 - Connecting bolt; 6 - Groove; 7 - Tenon; 8 - Light steel keel frame; 9 - Rock wool; 10 - OSB board; 11 - Cement fiberboard; 12 - PVC conduit; 13 - Tie rod; 14 - Galvanized steel plate; 15 - Anchor bolt; 200 - Second floor wall; 300 - Floor slab; 400 - Connecting steel strip; 500 - Connecting plate; 600 - Roof; 700 - Foundation. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figures 1-12 The illustrated quick-installation prefabricated light steel integrated wall panel housing system includes multiple prefabricated first wall panel units 1, second wall panel units 2, and third wall panel units 3.

[0026] like Figure 1 As shown, multiple first wall panel units 1, second wall panel units 2 and third wall panel units 3 are interlocked and assembled by the grooves 6 and the tenons 7, and are connected as a whole by the connecting screws 5 to form a first-floor wall 100 of the house.

[0027] like Figure 5 , Figure 6 As shown, the two ends of the first-layer wall 100 are third wall panel units 3. The third wall panel unit 3 near the left side is connected to the first wall panel unit 1. To the right of the first wall panel unit 1, multiple second wall panel units 2 are sequentially inserted and assembled. The first wall panel unit 1 and the second wall panel unit 2, as well as adjacent second wall panel units 2, are all connected by connecting screws 5.

[0028] The first wall panel unit 1 and the second wall panel unit 2 both include a light steel keel frame 8, rock wool 9, OSB board 10 and cement fiber board 11; the gaps in the light steel keel frame 8 are filled with the rock wool 9; the outer sides of the light steel keel frame 8 and the rock wool 9 are connected to the OSB board 10; the outer sides of the OSB board 10 are connected to the cement fiber board 11.

[0029] The third wall panel unit 3 includes a light steel keel frame 8, rock wool 9, OSB board 10, and cement fiber board 11; the light steel keel frame 8 of the third wall panel unit 3 is a hollow column structure, and the gaps are filled with the rock wool 9; the other two adjacent end faces of the third wall panel unit 3 that are not provided with the groove 6 and the tenon 7 are provided with OSB board 10 and cement fiber board 11 in sequence from the inside to the outside.

[0030] The light steel keel frame 8 is filled with 60 kg / m³ rock wool 9, then the OSB board 10 is fixed with screws and structural adhesive, and finally the decorative cement fiberboard 11 is fixed.

[0031] The first wall panel unit 1, the second wall panel unit 2 and the third wall panel unit 3 also include a galvanized steel plate 14; the galvanized steel plate 14 is bent to form the groove 6 and the tenon 7, and is connected to the light steel keel frame 8.

[0032] like Figure 2 As shown, the galvanized steel plates 14 on both sides of the first wall panel unit 1 are grooves 6, with a groove depth of 102mm, a groove width of 150mm, and a total width of 200mm. The thickness of the galvanized steel plate 14 is 2mm.

[0033] like Figure 3 As shown, the left side of the second wall panel unit 2 is a tenon 7 and the right side is a groove 6. The dimensions of the tenon 7 are: protrusion length 48mm, protrusion width 96mm, and total width 200mm.

[0034] The light steel keel frame 8 of the first wall panel unit 1 and the second wall panel unit 2 is model C140x50x20x2.0. The OSB board 10 is 18mm thick and the cement fiberboard 11 is 12mm thick.

[0035] like Figure 4 As shown, the two tenons 7 of the third wall panel unit 3 have the following dimensions: one has a protrusion length of 48mm, a protrusion width of 96mm, and a total width of 200mm; the other has a protrusion length of 48mm, a protrusion width of 96mm, and a total width of 198mm.

[0036] The light steel keel frame 8 of the third wall panel unit 3 is model C160x50x20x2.0, the galvanized steel plate 14 is 2mm thick, the OSB board 10 is 20mm thick, and the cement fiberboard 11 is 14mm thick.

[0037] like Figure 8 As shown, a PVC conduit 12 is installed on the light steel keel frame 8; the connecting screw 5 is inserted into the PVC conduit 12. The light steel keel frame 8 includes multiple light steel keels and tie rods 13 that connect the multiple light steel keels as a whole.

[0038] In the first wall panel unit 1, two connecting screws 5 are passed through the PVC conduit 12 with a spacing of 1800mm between the two connecting screws 5. One end of the connecting screw 5 is fixed with a double nut. Then, the first wall panel unit 1 is connected and fixed to the foundation 700 by M24 anchor bolts 15.

[0039] like Figure 6 As shown, after the first wall panel unit 1 is installed, firstly, pass the two connecting screws 5 of the second wall panel unit 2 through the PVC conduit 12, with a spacing of 600mm between the two connecting screws 5. Secure one end of the connecting screw 5 with a nut. Simultaneously, insert the connecting screw 5 from the first wall panel unit 1 into the adjacent second wall panel unit 2, tighten the connecting screw 5 from the outside of the adjacent second wall panel unit 2, and secure it with double nuts. After the second wall panel unit 2 is adjusted, finally connect and secure the second wall panel unit 2 to the foundation 700 using M24 anchor bolts 15. After the first wall panel unit 1 and the second wall panel unit 2 are fixed, fix the remaining second wall panel units 2 in the same way.

[0040] After one wall of the first-layer wall 100 is installed, the groove 6 of the second wall panel unit 2 and the tenon 7 of the third wall panel unit 3 are tightly connected. Figure 1 Install one layer of wall 100 in sequence according to the direction indicated by the arrow. When installing the last third wall panel unit 3, apply lubricant such as Vaseline to the tenon 7, and insert the third wall panel unit 3 into the groove 6 of the first wall panel unit 1 or the second wall panel unit 2 from top to bottom. After adjustment, fix it to the foundation 700.

[0041] like Figure 9 As shown, the bottom of the first-floor wall 100 is connected to an anchor bolt 15, which is anchored to the foundation 700, as follows. Figure 10 As shown, a ring of light steel keel truss beams 4 is installed on the top of the first-floor wall 100; a floor slab 300 is laid on top of the light steel keel truss beams 4. The light steel keel truss beams 4 are fixed to the first-floor wall 100 and the upper floor slab 300 with screws; the light steel keel truss beams 4 are 200mm high and 140mm wide. The top and bottom light steel keels are C140x50x20x2.0, and the belly light steel keel is C200x50x20x2.0. A second-floor wall 200 is installed on the floor slab 300; the second-floor wall 200 is also composed of multiple first wall panel units 1, second wall panel units 2, and third wall panel units 3, which are interlocked by the grooves 6 and the tenons 7, and connected by connecting screws 5. The assembly method of the second-floor floor 300 is the same as that of the first-floor floor 300. The outer sides of the first-floor wall 100 and the second-floor wall 200 are also connected by connecting steel strips 400; such as Figure 12As shown, a roof 600 is installed on top of the second-floor wall 200. The outer side of the light steel keel truss beam 4 is enclosed with 18mm OSB board 10 and 12mm decorative cement fiberboard 11. It is connected to the first-floor wall 100 and the second-floor wall 200 by connecting steel strips 400. The connecting steel strips 400 are decorative steel strips 200mm high and 2mm thick, encircling the house, and can be sprayed with wood grain paint or other decorative patterns. The bottom of the second-floor wall 200 is connected to the floor slab 300 via L-shaped connecting plates 500. The connecting plates 500 are 2mm thick, 80mm long, and 40mm wide, and can accommodate 3 rows and 4 columns of screws with a center-to-center spacing of 20mm and a screw diameter of ST2.9×25mm. After the second-floor wall 200 is installed, the roof 600 is installed according to project requirements, completing the main structure of the house.

[0042] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A rapid-installation prefabricated light steel integrated wall panel housing system, characterized in that, The system includes multiple prefabricated first wall panel units, second wall panel units, third wall panel units, light steel keel truss beams, and connecting bolts. Each first wall panel unit has vertical grooves at both opposite ends along its length. Each second wall panel unit has vertical grooves and tenons at both opposite ends along its length. Each third wall panel unit has vertical grooves and tenons at its adjacent ends. Multiple first, second, and third wall panel units are interlocked and assembled using the grooves and tenons, and connected by connecting bolts. The structure forms a single-layer wall of the house; the bottom of the single-layer wall is anchored to the foundation, and a light steel keel truss beam is installed on the top of the single-layer wall; a floor slab is laid on top of the light steel keel truss beam; a second-layer wall is installed on the floor slab; the second-layer wall is composed of multiple first wall panel units, second wall panel units, and third wall panel units that are interlocked by the grooves and tenons, and connected by connecting bolts; the outer sides of the single-layer wall and the second-layer wall are also connected by connecting steel strips; a roof is installed on top of the second-layer wall.

2. The rapid installation prefabricated light steel integrated wall panel housing system according to claim 1, characterized in that, The bottom of the second-floor wall is connected to the floor slab via an L-shaped connecting plate.

3. The rapid installation prefabricated light steel integrated wall panel housing system according to claim 1, characterized in that, Both the first wall panel unit and the second wall panel unit include a light steel keel frame, rock wool, OSB board, and cement fiber board; the gaps in the light steel keel frame are filled with the rock wool; the outer sides of the light steel keel frame and the rock wool are connected to the OSB board; and the outer sides of the OSB board are connected to the cement fiber board.

4. The rapid installation prefabricated light steel integrated wall panel housing system according to claim 3, characterized in that, A PVC conduit is installed on the light steel keel frame; the connecting screw is inserted into the PVC conduit.

5. A rapid installation prefabricated light steel integrated wall panel housing system according to claim 3, characterized in that, The light steel keel frame includes multiple light steel keels and tie rods that connect the multiple light steel keels as a whole.

6. A rapid installation prefabricated light steel integrated wall panel housing system according to claim 3, characterized in that, The third wall panel unit includes a light steel keel frame, rock wool, OSB board and cement fiber board; the light steel keel frame of the third wall panel unit is a hollow column structure, and the gaps are filled with the rock wool; the other two adjacent end faces of the third wall panel unit that are not provided with the groove and the tenon are provided with OSB board and cement fiber board in sequence from the inside to the outside.

7. A rapid installation prefabricated light steel integrated wall panel housing system according to claim 6, characterized in that, The first wall panel unit, the second wall panel unit, and the third wall panel unit also include galvanized steel sheets; the galvanized steel sheets are bent to form the grooves and the tenons, and are connected to the light steel keel frame.

8. A rapid installation prefabricated light steel integrated wall panel housing system according to claim 1, characterized in that, The bottom of the first-floor wall is connected to anchor bolts, which are anchored to the foundation.

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