An assembled building wallboard based on light composite thermal insulation board

Abstract

The application belongs to the technical field of fabricated building wallboards, in particular to a fabricated building wallboard based on light composite insulation board, which comprises a wallboard main body, a base steel frame for assembling the wallboard main body, and a top limiting frame, an assembling sliding rail is arranged at the upper end of the base steel frame, and the base steel frame is fixedly installed on the ground through expansion bolts, which solves the problem that the existing fabricated building wallboard is usually assembled and spliced in the steel frame framework of a factory building after the completion of the steel frame framework, and then the wallboard and the steel frame framework of the factory building are fixed by using fastening bolts, but if the wallboard is inclined or has poor position level before assembling and splicing, the wallboard needs to be removed, adjusted and assembled in position, and then reassembled, which is not only complicated to operate, but also low in assembling efficiency.

Description

Technical Field

[0001] This invention belongs to the field of prefabricated building wall panel technology, specifically a prefabricated building wall panel based on lightweight composite insulation board. Background Technology

[0002] In recent years, with the vigorous development of my country's construction industry, under the requirements of accelerating construction speed, reducing construction costs, ensuring construction quality, and improving building energy conservation and environmental protection, the construction industry is gradually moving towards modern prefabricated building systems. At the same time, more stringent requirements have been put forward for the comprehensive performance of building materials, such as lightweight, high strength, heat insulation, sound insulation, earthquake resistance, durability, environmental protection, and construction speed. This has promoted the development of building wall materials from traditional masonry to prefabricated wall panels. In building structures composed of load-bearing systems of walls and floor slabs, the walls serve as load-bearing components. Especially in factory construction, steel frames are usually used to build the factory frame, and then building wall panels are quickly assembled with the factory steel frame to form the walls, improving the construction cost and efficiency of the factory.

[0003] A patent with publication number CN118065558B discloses a prefabricated building wall panel. The device starts a cooling pump to generate negative pressure in the storage tank, and the coolant in the storage tank enters the circulation pipe. At this time, the transparent cylinder is pressurized, and the float generates upward buoyancy. The float pushes the conical plug up to block the gap. If the wall panel is tilted horizontally, the liquid level in the upper chamber of the two transparent cylinders is different. At this time, rotating one of the nuts allows the rotating shaft to extend and retract at the bottom of the wall panel, so that the rotating shaft can be supported in the insertion hole. By observing the parameters of the liquid level in the transparent cylinder corresponding to the scale line, the wall panel can be leveled, which facilitates installation.

[0004] In practical application, the above solution uses two screws with screw holes to fix both ends of the wall panel for splicing and assembly. During leveling, one of the screws is driven to move the wall panel to achieve leveling. However, since the other screw is fixed to the screw hole, it is easy for the screw to get stuck when moving the wall panel for leveling, making the wall panel unable to move. Moreover, when replacing a single damaged wall panel, the installation of screws with screw holes results in low wall panel disassembly efficiency. Especially during splicing and assembly, both screws need to be driven to rotate and connect with the screw holes simultaneously to complete the assembly of the wall panel, which reduces the wall assembly efficiency.

[0005] Therefore, the present invention provides a prefabricated building wall panel based on lightweight composite insulation board. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the prefabricated building wall panel based on lightweight composite thermal insulation board of the present invention includes a wall panel body, a base steel frame for assembling the wall panel body and a top limiting frame, wherein the upper end of the base steel frame is provided with an assembly slide rail, and the base steel frame is fixedly installed to the ground by expansion bolts. The wall panel body includes a main wall panel that is slidably connected in the inner cavity of the assembly slide rail. An inner wall panel is fixedly connected to the front end face of the main wall panel, and an outer wall panel is fixedly connected to the rear end face of the main wall panel. The inner wall panel and the outer wall panel are misaligned and fixedly connected to the main wall panel, thereby forming a 90-degree splicing groove for assembling and splicing multiple wall panel bodies to form a wall surface. An assembly leveling component is provided inside the upper end of the main wall panel, and the assembly leveling component includes two storage slots opened on the upper end of the main wall panel. A push block is rotatably connected to the inner cavity of each of the two storage slots, and a level is provided inside the inner wall panel.

[0008] Preferably, a limiting groove is provided at the bottom of the inner cavity of the storage slot, a U-shaped fixing block is fixedly connected to one side of the lower end of the pushing block, a U-shaped support block is rotatably connected to the inner cavity of the U-shaped fixing block, a rotating block is rotatably connected to one end of the U-shaped support block, and a U-shaped slider is rotatably connected to one end of the rotating block, and the U-shaped slider is slidably connected in the limiting groove.

[0009] Preferably, the inner cavity of the limiting groove is slidably connected to two racks, and one end of each rack is fixedly connected to the U-shaped slider.

[0010] Preferably, a rotating groove is provided at the bottom of the inner cavity of the limiting slide groove, and a rotating shaft is rotatably connected to the inner cavity of the rotating groove. A gear is fixed to the outside of the rotating shaft, and the gear meshes with a rack. One end of the rotating shaft passes through the inner wall panel and is provided with an internal hexagonal groove.

[0011] Preferably, the main wall panel is made of lightweight composite insulation board, the inner wall panel is made of EPS cement sandwich wall panel, the inner wall of the splicing groove is provided with a groove, the lower end of the main wall panel is slidably connected to a mountain-shaped sliding frame, the upper end of the mountain-shaped sliding frame is fixedly connected to a spring, and one end of the spring is fixedly connected to the inner cavity wall of the main wall panel, the lower end of the main wall panel is slidably connected to a locking block, one end of the locking block is fixedly connected to a traction rope, and one end of the traction rope is fixedly connected to the mountain-shaped sliding frame. Preferably, the outer wall panel is composed of a frame made up of four aluminum strips, and a supporting keel is provided in the inner cavity of the frame. A solar panel is installed in the inner cavity of the frame. A ring of rubber strips is arranged around the frame and the outer side of the inner wall panel to automatically fill the splicing gaps of the assembled wall panels.

[0012] Preferably, the main wall panel has a water-flow cavity inside, and an expansion joint is fixedly connected to the upper end of the main wall panel inside the water-flow cavity, with a strong magnet provided at the upper end of the expansion joint.

[0013] Preferably, the lower end of the main wall panel is provided with a docking port at the water inlet cavity, and a strong magnet is provided at the bottom of the inner cavity of the docking port, and the expansion joint is connected to the docking port by adsorption through the strong magnet.

[0014] Preferably, the inner cavity of the water-flow chamber has multiple vertical holes, and the multiple vertical holes are used for rapid drainage.

[0015] Preferably, a splicing groove is provided on one side of the main wall panel, and two inserts are fixedly connected to one side of the main wall panel, and the inner cavity of each of the two inserts is provided with an elastic clip.

[0016] The beneficial effects of this invention are as follows: 1. The present invention discloses a prefabricated building wall panel based on lightweight composite thermal insulation board. By inserting a hexagonal screwdriver into the internal hexagonal groove and turning the rotating shaft, the screwdriver drives the gear to rotate. The gear, through meshing transmission, causes the rack to rotate, which in turn slides in the inner cavity of the limiting slide groove, and drives the U-shaped slider to move synchronously. At the same time, the U-shaped slider drives the rotating block to pull the U-shaped support block to move, so that the U-shaped support block lifts the U-shaped fixing block to move upward. The U-shaped fixing block then drives the pushing block to flip and move upward. Finally, the pushing block lifts the wall panel body to complete the leveling. This design solves the problem that after the existing prefabricated building wall panel is assembled and spliced, if a wall panel is tilted or has a level deviation, it needs to be disassembled and readjusted. This is not only cumbersome to operate, but the prying force during disassembly can easily cause the panel to chip, missing corners, or the surface layer to fall off, thus affecting the thermal insulation performance of the wall later.

[0017] 2. The prefabricated building wall panel based on lightweight composite insulation board described in this invention, after the main wall panel is inserted into the splicing groove cavity, the main wall panel will drive the U-shaped sliding frame to abut against the wall panel body, thereby causing the wall panel body to squeeze the U-shaped sliding frame into the main wall panel. At the same time, the U-shaped sliding frame compresses the spring and pushes the locking block to slide out of the main wall panel, finally allowing the locking block to insert into the groove cavity. This design enables rapid assembly of the wall panel, and with the cooperation of the locking block and the groove, it can generate a pulling force on the wall when the wall panel tends to tilt, preventing the entire wall from tilting before the assembly is completed. In addition, when the wall panel has When there is a leveling deviation, the wall panel body can be leveled by assembling the leveling component. At this time, the locking block can slide and adjust in the inner cavity of the groove, which effectively avoids the wall panel body being restricted from tilting and leveling during the leveling process due to the setting of the locking block and the groove. This solution solves the problem that in the existing prefabricated building wall panel assembly and splicing, the traditional method is to assemble the wall panel and the steel frame of the factory and fix the two with fasteners. Although this can prevent the wall panel from tilting or becoming unstable after assembly, it is difficult to quickly disassemble and adjust it once the wall panel is uneven after assembly and splicing. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the main view of the present invention; Figure 2 This is a schematic diagram of the assembly structure of the wall panel body of the present invention; Figure 3 This is a half-sectional structural schematic diagram of the main wall panel of the present invention; Figure 4 This is the present invention. Figure 3 Enlarged structural diagram of region A in the middle; Figure 5 This is a partial cross-sectional structural diagram of the main wall panel of the present invention; Figure 6 This is a schematic diagram of the overall structure of the exterior wall panel of the present invention; Figure 7 This is a schematic diagram of the assembly structure of the mountain-shaped sliding frame of the present invention; In the diagram: 100, base steel frame; 200, top limiting frame; 300, main wall panel; 301, inner wall panel; 302, main wall panel; 303, outer wall panel; 304, splicing groove; 305, water channel; 306, expansion joint; 307, mating joint; 308, vertical hole; 309, frame; 400, insert block; 500, assembly groove; 600, assembly slide rail; 700, groove; 8 00. Assemble leveling components; 801. Storage slot; 802. Push block; 803. U-shaped support block; 804. Rotating block; 805. U-shaped slider; 806. Rack; 807. Gear; 808. Rotating shaft; 809. Level; 810. U-shaped fixing block; 811. Limiting slide groove; 812. Rotating groove; 900. Mountain-shaped sliding frame; 1000. Spring; 1001. Locking block. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0021] Example 1, as Figures 1 to 4 As shown in the figure, an assembly wall panel based on lightweight composite thermal insulation board according to an embodiment of the present invention includes a wall panel body 300, a base steel frame 100 for assembling the wall panel body 300, and a top limiting frame 200. The upper end of the base steel frame 100 is provided with an assembly slide rail 600, and the base steel frame 100 is fixedly installed to the ground by expansion bolts. The wall panel body 300 is provided with an assembly groove 500. The wall panel body 300 includes a main wall panel 302 that is slidably connected in the inner cavity of the assembly slide rail 600. An inner wall panel 301 is fixedly connected to the front end face of the main wall panel 302, and an outer wall panel 303 is fixedly connected to the rear end face of the main wall panel 302. The inner wall panel 301 and the outer wall panel 303 are offset and fixedly connected to the main wall panel 302, thereby forming a 90-degree splicing groove 304, which is used for assembling and splicing multiple wall panel bodies 300 to form a wall surface. The upper end of the main wall panel 302 is provided with an assembly leveling component 800, and the assembly leveling component 800 includes two storage slots 801 opened at the upper end of the main wall panel 302. The inner cavity of each of the two storage slots 801 is rotatably connected to a push block 802, and a level 809 is provided inside the inner wall panel 301.

[0022] Specifically, in existing technologies, after the steel frame of the factory building is erected, the wall panels are usually assembled and spliced ​​inside the steel frame. Then, fasteners are used to fix the wall panels to the steel frame of the factory building. However, if the wall panels are tilted or have poor levelness before they are assembled and spliced, the wall panels need to be dismantled, the assembly position adjusted, and reassembled. This is not only cumbersome but also inefficient.

[0023] In this invention, during wall panel assembly, the base steel frame 100 is fixed to the ground using expansion bolts. Then, the wall panel body 300 is installed within the assembly slide rail 600 using the main wall panel 302. The main wall panel 302 slides and adjusts its position within the assembly slide rail 600, forming a wall base. The wall panel body 300 is then assembled with the wall base facing upwards. After the main wall panel 302 is inserted into the splicing groove 304, the inner wall panel 301 and the outer wall panel 303 are connected to the main wall panel. The wall panels 302 are staggered and fixed to form a 90-degree splicing groove 304. This allows the inner wall panels 301 and outer wall panels 303 to clamp and limit the main wall panel 302, preventing the assembled wall from tilting to either side. After the entire wall assembly is completed, the installation position of each wall panel body 300 is observed using a level 809. If a leveling difference is found, the drive block 802 is rotated and used to lift the uneven wall panel body 300 to level it, thus solving the above problem.

[0024] like Figures 3 to 5As shown, a limiting groove 811 is provided at the bottom of the inner cavity of the storage slot 801. A U-shaped fixing block 810 is fixedly connected to one side of the lower end of the pushing block 802. A U-shaped support block 803 is rotatably connected to the inner cavity of the U-shaped fixing block 810. A rotating block 804 is rotatably connected to one end of the U-shaped support block 803. A U-shaped slider 805 is rotatably connected to one end of the rotating block 804. The U-shaped slider 805 is slidably connected in the limiting groove 811. Two racks 806 are slidably connected in the inner cavity of the limiting groove 811. One end of the two racks 806 is fixedly connected to the U-shaped slider 805. A rotating groove 812 is provided at the bottom of the inner cavity of the limiting groove 811. A rotating shaft 808 is rotatably connected in the inner cavity of the rotating groove 812. A gear 807 is fixedly connected to the outside of the rotating shaft 808. The gear 807 meshes with the rack 806. One end of the rotating shaft 808 passes through the inner wall panel 301 and has an internal hexagonal groove.

[0025] Specifically, when tilting or leveling discrepancies occur during the assembly and splicing of the wall panel body 300, a hex screwdriver with an internal hexagonal groove is used to twist the rotating shaft 808, causing the rotating shaft 808 to drive the gear 807 to rotate. The gear 807 then meshes with the rack 806, causing the rack 806 to slide within the limiting groove 811 and synchronously move the U-shaped slider 805. Simultaneously, the U-shaped slider 805 drives the rotating block 804 to pull the U-shaped support block 803, which in turn lifts the U-shaped fixing block 810 upwards. The movement causes the U-shaped fixing block 810 to drive the pushing block 802 to flip and move upwards, and then the pushing block 802 lifts the wall panel body 300 for leveling. This solves the problem that if one of the wall panels in the existing prefabricated building wall panels based on lightweight composite insulation boards is tilted or has a poor level after the wall assembly is completed, the wall panel needs to be disassembled and readjusted. This is not only cumbersome, but the prying force during each disassembly can easily cause the board to chip, lose corners or peel off the surface layer, thus affecting the insulation performance of the wall after assembly.

[0026] like Figure 3 , Figure 6 and Figure 7As shown, the main wall panel 302 is made of lightweight composite insulation board, the inner wall panel 301 is made of EPS cement sandwich wall panel, the inner wall of the splicing groove 304 has a groove 700, the lower end of the main wall panel 302 is slidably connected to a mountain-shaped sliding frame 900, the upper end of the mountain-shaped sliding frame 900 is fixedly connected to a spring 1000, and one end of the spring 1000 is fixedly connected to the inner cavity wall of the main wall panel 302. The lower end of the main wall panel 302 is slidably connected to a locking block 1001, one end of the locking block 1001 is fixedly connected to a traction rope, and one end of the traction rope is fixedly connected to the mountain-shaped sliding frame 900. The outer wall panel 303 is composed of four aluminum strips spliced ​​to form a frame 309, and the inner cavity of the frame 309 is provided with a supporting keel. The inner cavity of the frame 309 is equipped with a solar panel. The frame 309 and the inner wall panel 301 are surrounded by a ring of rubber strips, which can be used to automatically fill the splicing gaps of the assembled wall panels.

[0027] Specifically, after the main wall panel 302 is inserted into the inner cavity of the splicing groove 304, the main wall panel 302 will cause the U-shaped sliding bracket 900 to abut against the wall panel body 300, thereby causing the wall panel body 300 to squeeze the U-shaped sliding bracket 900 into the main wall panel 302, and causing the U-shaped sliding bracket 900 to compress the spring 1000, while pushing the locking block 1001 to slide out of the main wall panel 302, so that the locking block 1001 can be inserted into the inner cavity of the groove 700. This enables the rapid assembly of the wall panel. Moreover, by using the cooperation of the locking block 1001 and the groove 700, the wall can be pulled to prevent tilting before the entire wall is assembled when the wall panel is tilted. Furthermore, when there is a leveling difference in the wall panel, the wall panel body 300 can be pushed by assembling the leveling component 800. The leveling process allows the locking block 1001 to slide and adjust within the groove 700, preventing the locking block 1001 and groove 700 from causing the wall panel body 300 to be unable to tilt and move for leveling during the leveling process. This solves the problem that in existing prefabricated building wall panels based on lightweight composite insulation boards, the wall panels are usually assembled with the steel frame of the factory building and then fixed to the steel frame with fasteners. Although this installation method can prevent tilting or instability after the wall panels are assembled, it is difficult to quickly disassemble and adjust the wall panels if they are uneven after assembly.

[0028] Example 2, as Figure 3 and Figure 5 As shown, a water-carrying cavity 305 is provided inside the main wall panel 302, and an expansion joint 306 is fixedly connected to the upper end of the main wall panel 302 inside the water-carrying cavity 305, and a strong magnet is provided at the upper end of the expansion joint 306.

[0029] Specifically, the main wall panel 302 has a drainage cavity 305 inside, which can reduce the overall weight of the wall panel body 300. Moreover, the drainage cavity 305 is usually hollow, which can effectively block part of the structural sound transmission path and reduce solid-borne sound transmission. At the same time, the hollow cavity has a certain attenuation effect on mid-to-high frequency noise. The main wall panel 302 has sound-absorbing material inside, which can absorb the noise generated by external wall impact, thereby reducing the external wall impact noise that the hollow cavity cannot reduce, further improving the sound insulation effect of the wall panel body 300. Secondly, after the wall panel body 300 is assembled, it is connected to the docking port 307 by the expansion joint 306 in conjunction with the strong magnet. During the leveling of the wall panel body 300, the expansion joint 306 is always connected to the docking port 307, ensuring the connection effect between the wall panel body 300 and the drainage cavity 305, and preventing water leakage during later drainage.

[0030] like Figure 3 and Figure 5 As shown, the lower end of the main wall panel 302 is provided with a docking port 307 at the water inlet 305. A strong magnet is provided at the bottom of the inner cavity of the docking port 307, and the expansion joint 306 is connected to the docking port 307 by the strong magnet. The inner cavity of the water inlet 305 is provided with multiple vertical holes 308 for rapid drainage. The water inlet 305 is made of plastic conduit. A splicing groove 304 is provided on one side of the main wall panel 302. Two plug blocks 400 are fixed to one side of the main wall panel 302, and the inner cavity of the two plug blocks 400 is provided with elastic clips.

[0031] Specifically, when cooling the wall, cold water is pumped from the top of the building into the water channel 305 via an external water pump or tap water pipe. The main wall panel 302 is made of lightweight composite insulation board. The cold water in the water channel 305 can be insulated by the insulation board, preventing the high temperature from penetrating the wall and causing the temperature inside the building to rise when the external temperature is high. Moreover, in cold or rainy seasons, the water channel 305 allows continuous air circulation, forming a chimney effect, which can remove the infiltrated moisture, keep the insulation layer and structural layer dry, prevent mold growth and material corrosion, and improve the service life of the wall panel. This solves the problem that when assembling and splicing prefabricated building wall panels based on lightweight composite insulation board, it is usually necessary to install sealing strips or sealant at the splicing points of the wall panels before splicing. This is not only cumbersome, but also makes it difficult to quickly disassemble and replace a damaged wall panel, affecting the convenience of using the wall panel.

[0032] The working principle is as follows: The base steel frame 100 is fixed to the ground using expansion bolts. Then, the wall panel body 300 is installed within the assembly slide rail 600 using the main wall panel 302. The main wall panel 302 slides and adjusts its position within the assembly slide rail 600, forming a wall base. The wall panel body 300 is then assembled and spliced ​​upwards with the wall base in place. After the main wall panel 302 is inserted into the splicing groove 304, the inner wall panel 301 and the outer wall panel 303... The main wall panel 302 is staggered and fixed to form a 90-degree splicing groove 304. The inner wall panel 301 and the outer wall panel 303 can then clamp and limit the main wall panel 302 to prevent the assembled wall from tilting to both sides. After the entire wall is assembled, the installation position of each wall panel body 300 is observed by the level 809. If there is a difference in levelness, the drive block 802 is rotated and the drive block 802 lifts the uneven wall panel body 300 to level it. After the main wall panel 302 is inserted into the inner cavity of the splicing groove 304, the main wall panel 302 will cause the U-shaped sliding bracket 900 to abut against the wall panel body 300, thereby causing the wall panel body 300 to squeeze the U-shaped sliding bracket 900 into the main wall panel 302, and causing the U-shaped sliding bracket 900 to compress the spring 1000, while pushing the locking block 1001 to slide out of the main wall panel 302, so that the locking block 1001 can be inserted into the inner cavity of the groove 700. This enables the rapid assembly of the wall panel, and by utilizing the cooperation of the locking block 1001 and the groove 700, the wall panel can be quickly assembled. When tilting occurs, the wall is pulled to prevent tilting before the entire wall is assembled. Moreover, when there is a leveling difference in the wall panel, the wall panel body 300 can be pushed to perform leveling by assembling the leveling component 800. This allows the locking block 1001 to slide and adjust in the inner cavity of the groove 700, avoiding the setting of the locking block 1001 and the groove 700, which would prevent the wall panel body 300 from tilting and moving to be leveled due to the influence of the locking block 1001 and the groove 700. When tilting or leveling discrepancies occur during the assembly and splicing of the wall panel body 300, a hex screwdriver is used with an internal hexagonal groove to twist the rotating shaft 808, causing the rotating shaft 808 to drive the gear 807 to rotate. The gear 807 then meshes with the transmission rack 806 to rotate, causing the rack 806 to slide in the inner cavity of the limiting slide groove 811 and drive the U-shaped slider 805 to move synchronously. At the same time, the U-shaped slider 805 drives the rotating block 804 to pull the U-shaped support block 803 to move, which in turn causes the U-shaped support block 803 to lift the U-shaped fixing block 810 upward. This causes the U-shaped fixing block 810 to drive the pushing block 802 to flip and move upward, and then the pushing block 802 lifts the wall panel body 300 for quick leveling.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated building wall panel based on lightweight composite insulation board, comprising a wall panel body (300), a base steel frame (100) for assembling the wall panel body (300), and a top limiting frame (200), characterized in that: The upper end of the base steel frame (100) is provided with an assembly slide rail (600), and the base steel frame (100) is fixed to the ground by expansion bolts; The wall panel body (300) includes a main wall panel (302) slidably connected in the cavity of the assembly slide rail (600). An inner wall panel (301) is fixedly connected to the front end face of the main wall panel (302), and an outer wall panel (303) is fixedly connected to the rear end face of the main wall panel (302). The inner wall panel (301) and the outer wall panel (303) are misaligned and fixedly connected to the main wall panel (302), thereby forming a 90-degree splicing groove (304) for multiple wall panel bodies (300) to be assembled and spliced ​​together to form a wall surface. The upper end of the main wall panel (302) is provided with an assembly leveling component (800), and the assembly leveling component (800) includes two storage slots (801) opened on the upper end of the main wall panel (302). The inner cavity of the two storage slots (801) is rotatably connected with a push block (802). The inner wall panel (301) is provided with a level (809).

2. The prefabricated building wall panel based on lightweight composite insulation board according to claim 1, characterized in that: The storage slot (801) has a limiting groove (811) at the bottom of its inner cavity. A U-shaped fixing block (810) is fixed to one side of the lower end of the push block (802). A U-shaped support block (803) is rotatably connected to the inner cavity of the U-shaped fixing block (810). A rotating block (804) is rotatably connected to one end of the U-shaped support block (803). A U-shaped slider (805) is rotatably connected to one end of the rotating block (804). The U-shaped slider (805) is slidably connected in the limiting groove (811).

3. A prefabricated building wall panel based on lightweight composite insulation board according to claim 2, characterized in that: The inner cavity of the limiting groove (811) is slidably connected to two racks (806), and one end of the two racks (806) is fixedly connected to the U-shaped slider (805).

4. A prefabricated building wall panel based on lightweight composite insulation board according to claim 3, characterized in that: The bottom of the inner cavity of the limiting slide groove (811) is provided with a rotating groove (812), and a rotating shaft (808) is rotatably connected to the inner cavity of the rotating groove (812). A gear (807) is fixed to the outside of the rotating shaft (808), and the gear (807) meshes with the rack (806). One end of the rotating shaft (808) passes through the inner wall panel (301) and is provided with an internal hexagonal groove.

5. A prefabricated building wall panel based on lightweight composite insulation board according to claim 1, characterized in that: The main wall panel (302) is made of lightweight composite insulation board, the inner wall panel (301) is made of EPS cement sandwich wall panel, the inner wall of the splicing groove (304) is provided with groove (700), the lower end of the main wall panel (302) is slidably connected to a mountain-shaped sliding frame (900), the upper end of the mountain-shaped sliding frame (900) is fixedly connected to a spring (1000), and one end of the spring (1000) is fixedly connected to the inner wall of the main wall panel (302). The lower end of the main wall panel (302) is slidably connected to a locking block (1001), one end of the locking block (1001) is fixedly connected to a traction rope, and one end of the traction rope is fixedly connected to the mountain-shaped sliding frame (900).

6. A prefabricated building wall panel based on lightweight composite insulation board according to claim 5, characterized in that: The outer wall panel (303) is composed of four aluminum strips spliced ​​together to form a frame (309), and the inner cavity of the frame (309) is provided with a supporting keel. The inner cavity of the frame (309) is equipped with a solar panel. The frame (309) and the outer side of the inner wall panel (301) are provided with a ring of rubber strips, which can be used to automatically fill the splicing gaps of the assembled wall panels.

7. A prefabricated building wall panel based on lightweight composite insulation board according to claim 1, characterized in that: The main wall panel (302) has a water flow cavity (305) inside. The upper end of the main wall panel (302) is fixedly connected to the water flow cavity (305) with an expansion joint (306), and a strong magnet is provided at the upper end of the expansion joint (306).

8. A prefabricated building wall panel based on lightweight composite insulation board according to claim 7, characterized in that: The lower end of the main wall panel (302) is provided with a docking port (307) located at the water flow cavity (305). A strong magnet is provided at the bottom of the inner cavity of the docking port (307), and the expansion joint (306) is attracted and connected to the docking port (307) through the strong magnet.

9. A prefabricated building wall panel based on lightweight composite insulation board according to claim 7, characterized in that: The inner cavity of the water-flow chamber (305) is provided with multiple vertical holes (308), and the multiple vertical holes (308) are used for rapid drainage.

10. A prefabricated building wall panel based on lightweight composite insulation board according to claim 7, characterized in that: The main wall panel (302) has a splicing groove (304) on one side, and two inserts (400) are fixedly connected to one side of the main wall panel (302), and the inner cavity of the two inserts (400) is provided with elastic clips.

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