Rapid splicing structure of modular building wall and splicing method of rapid splicing structure

Abstract

The invention discloses a quick splicing structure of a modular building wall and a splicing method thereof, the quick splicing structure comprises a plurality of prefabricated wallboards which are mutually spliced to form a wall, a horizontal connecting assembly is connected to the two prefabricated wallboards arranged in the horizontal direction in a clamping manner, and a vertical connecting assembly is connected to the two prefabricated wallboards arranged in the vertical direction in a clamping manner. By arranging the detachable and replaceable prefabricated wallboards, the outer layer of a wall body formed by splicing the prefabricated wallboards can be detached and replaced when maintenance is needed in the later period, the maintenance cost is reduced, and the adjustable connecting assemblies are arranged in the horizontal direction of the prefabricated wallboards, so that the prefabricated wallboards in the horizontal direction can be tightly connected and fixed; and meanwhile, the clamping connecting assemblies are arranged in the vertical direction, so that the prefabricated wallboards can be directly pressed and fixed when installed in the vertical direction, and the splicing efficiency of the prefabricated wallboards is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of building industrialization applications, and particularly to a rapid splicing structure and a splicing method for modular building walls. Background Art

[0002] Modular building walls are prefabricated building components based on industrial production, which achieve building functions through standardized design, factory manufacturing, and on-site rapid assembly. The core lies in transforming traditional on-site construction into a "factory manufacturing + on-site assembly" model, which is one of the core technologies of prefabricated buildings.

[0003] Traditional building wall construction has a long cycle and relies on manual operation. Existing modular walls mostly use bolt connection or welding methods, which have the following problems: the connection structure is complex, requires special tools for operation, has low efficiency, is difficult to disassemble, is difficult to reuse, and the connection nodes are prone to loosening, affecting the overall stability of the wall. Therefore, the present invention proposes a rapid splicing structure and a splicing method for modular building walls. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a rapid splicing structure and a splicing method for modular building walls. By setting detachable and replaceable precast wall panels, the outer layer of the wall formed by splicing the precast wall panels can be disassembled and replaced during later maintenance, reducing the maintenance cost. At the same time, adjustable connection components are arranged in the horizontal direction of the precast wall panels, so that the precast wall panels in the horizontal direction can be tightly connected and fixed. In addition, snap connection components are arranged in the vertical direction, so that the precast wall panels can be directly pressed and fixed when installed in the vertical direction, improving the splicing efficiency of the precast wall panels.

[0005] To solve the above technical problem, a technical solution adopted by the present invention is: to provide a rapid splicing structure for modular building walls, including a plurality of precast wall panels for splicing with each other to form a wall. The horizontal connection components are snap-connected to two precast wall panels arranged in the horizontal direction, and the vertical connection components are snap-connected to two precast wall panels arranged in the vertical direction.

[0006] The present invention is further provided as: the precast wall panel includes a base plate, and a plurality of guide rails are symmetrically installed on both sides of the base plate. Protective layers are symmetrically slid into both sides of the base plate through the guide rails, and side frames are symmetrically inserted into the end faces of the two groups of guide rails.

[0007] Through the above technical solution, it is convenient to quickly install and fix the protective layer by using the guide rails, and use the side frames to limit and fix it.

[0008] The present invention is further provided as: a plurality of clamping strips are fixedly connected to the opposite surfaces of the two protective layers, and the plurality of clamping strips are respectively inserted and snap-connected to the inside of the plurality of guide rails.

[0009] Through the above technical solution, it is convenient to slide the protective layer stably into the inside of the guide rail through the clamping strip, so as to realize the installation and fixation of the protective layer.

[0010] The present invention is further configured as: a plurality of positioning blocks are fixedly connected to the opposite surfaces of the two side frames, the plurality of positioning blocks are respectively inserted into the inside of the plurality of guide rails, and the clamping columns arranged at the upper and lower parts of the plurality of positioning blocks are respectively in snap connection with the clamping grooves opened on the end faces of the guide rails.

[0011] Through the above technical solution, it is convenient for the side frame to drive the positioning block to clamp and fix the position of the installed protective layer, and further reinforce the installation of the protective layer in the snap connection of the clamping column and the clamping groove.

[0012] The present invention is further configured as: the horizontal connection assembly includes a housing, one end of the housing is threadedly connected through an adjusting bolt, a rack is tightly abutted against the end face of the adjusting bolt, an adjusting spring is tightly abutted against the other end face of the rack, two gear columns are meshed and connected to the inner wall of the rack, screw rods are symmetrically threadedly connected to the inner walls of the two gear columns, and tensioning T-blocks are fixedly connected to the opposite end faces of the two groups of screw rods.

[0013] Through the above technical solution, the adjusting bolt is rotated, so that the rack tightly abutted against its end face drives the two meshed and connected gear columns to rotate, and at the same time, the adjusting spring at the bottom is squeezed and abutted tightly. The gear column drives the screw rod threadedly connected to its inner wall to move, so that the tensioning T-block at the end face pulls inward, so that the two side frames are tightly attached to both sides of the housing, and the protective layers on the precast wall panels are hermetically abutted against each other, completing the connection and fixation of the precast wall panels in the horizontal direction.

[0014] The present invention is further configured as: the rack is arranged in a rectangular frame, and the outer wall is slidably connected to the inner wall of the housing. At the same time, the end face of the adjusting spring tightly abutted against the end face of the rack is tightly abutted against the inner part of the end face of the housing.

[0015] Through the above technical solution, it is convenient for the rack to stably slide inside the housing, so as to stably drive the rotation of the gear column, and use the adjusting spring to tightly fix the position.

[0016] The present invention is further configured as: the two groups of tensioning T-blocks respectively penetrate through the two side walls of the housing and are slidably connected to the housing. At the same time, the two groups of tensioning T-blocks respectively slide into the connection grooves arranged on the adjacent side frames on both sides.

[0017] Through the above technical solution, it is convenient for the tensioning T-block to stably slide during adjustment, so that it drives the side frame to approach and fix through the connection groove.

[0018] The present invention is further configured that: the vertical connection component includes a connection frame, an activity groove is formed in the middle of the connection frame, clamping blocks are symmetrically and rotatably connected to positions near the top on both sides of the connection frame, the two clamping blocks are respectively clamped and connected to the embedding grooves formed in the two adjacent substrates, connecting rods are rotatably connected to the opposite surfaces of the two clamping blocks, sliding rods are rotatably connected to the end faces of the two connecting rods, baffles are threadedly sleeved on the sliding rods near the connecting rods, a reset spring is wrapped around the outer wall of the sliding rod, the two sliding rods respectively penetrate through positions near the middle of the connection frame, and a lever is connected by a sleeve bolt threadedly connected to the end face.

[0019] Through the above technical solution, by utilizing the reset elasticity of the reset spring after being squeezed, the baffle drives the sliding rod to slide, and the connecting rod is made to push the clamping block to rotate, so that it is stably clamped and connected inside the embedding groove, realizing the connection and fixation of the vertical connection component and the substrate. When disassembly is required later, only by relatively pressing the lever, the sliding rod can drive the clamping block on the connecting rod to move away from the inside of the embedding groove, thus completing the disassembly between the two precast wall panels.

[0020] The present invention is further configured that: the end faces of the two reset springs respectively abut against the connection frame and the baffle, and the two levers are movably connected inside the activity groove.

[0021] Through the above technical solution, it is convenient to utilize the reset spring to drive the connecting rod on the sliding rod to perform a reset operation, so that the clamping block rotatably connected to the end face is stably clamped and connected inside the embedding groove, ensuring the firmness between the two precast wall panels.

[0022] On the other hand, a splicing method for a quick splicing structure of a modular building wall is provided, including the following steps: S1. First, a plurality of guide rails are sequentially bolted to both sides of the substrate; S2. Then, the protective layers on both sides are inserted into the guide rails through the card strips; S3. Then, the two side frames are inserted into the end faces of the guide rails through the positioning blocks, so that the clamping columns on the positioning blocks are embedded into the internal card slots, thereby fixing the installed protective layers by using the side frames; S4. Then, the horizontal connection component is slid into the connection grooves arranged outside the side frames on the opposite faces of the two precast wall panels through the tensioning T blocks, and the top and bottom of the housing are flush with the top and bottom of the side frames respectively; S5. Next, rotate the adjusting bolt so that the rack against which its end face abuts drives the two gear columns engaged and connected to rotate. At the same time, squeeze and press the adjusting spring at the bottom, and the gear column drives the screw rod threadedly connected to the inner wall to move. As a result, the tensioning T-block at the end face pulls inward, causing the side frames on both sides to closely fit against both sides of the housing, and the protective layers on the precast wall panels are hermetically pressed against each other, completing the connection and fixation of the precast wall panels in the horizontal direction; S6. Next, insert the two vertical connection components into the embedding grooves opened on the substrate respectively. At this time, when the clamping block is squeezed by the embedding groove, it rotates on the connection frame, causing the connecting rod to drive the sliding rod to slide on the connection frame, so that the baffle plate squeezes the return spring. When the clamping block reaches the inner bottom of the embedding groove, the restoring elasticity of the return spring causes the baffle plate to drive the sliding rod to slide, and the connecting rod pushes the clamping block to rotate, so that it is stably clamped and connected inside the embedding groove, realizing the connection and fixation of the vertical connection component and the substrate; S7. Finally, insert the other precast wall panel to be installed vertically into the top of the fixed vertical connection component through the embedding groove provided at the bottom of the substrate inside it. Use the clamping block on the vertical connection component to tightly connect and fix the two precast wall panels in the vertical direction. Repeat steps S4 - S6 to complete the splicing and fixation of multiple precast wall panels.

[0023] The beneficial effects of the present invention are as follows: 1. A quick splicing structure and splicing method for a modular building wall proposed by the present invention can disassemble and replace the outer layer when the wall assembled by the precast wall panels needs to be maintained in the later stage by setting detachable and replaceable precast wall panels, reducing the maintenance cost; 2. A quick splicing structure and splicing method for a modular building wall proposed by the present invention can tightly connect and fix the precast wall panels in the horizontal direction by setting adjustable connection components in the horizontal direction of the precast wall panels; 3. A quick splicing structure and splicing method for a modular building wall proposed by the present invention can directly press and fix the precast wall panels when installing them in the vertical direction by setting clamping connection components in the vertical direction, improving the splicing efficiency of the precast wall panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the structural diagram of the present invention; Figure 2 is the exploded view of the present invention; Figure 3 is the exploded view of the precast wall panel in the present invention; Figure 4 is the internal structural diagram of the precast wall panel in the present invention; Figure 5 is Figure 4Enlarged view of part A in [the figure]; Figure 6 Structural diagram of the horizontal connection component in the present invention; Figure 7 Cross-sectional structural diagram of the horizontal connection component in the present invention; Figure 8 is Figure 7 Enlarged view of part B in [the figure]; Figure 9 Structural diagram of the vertical connection component in the present invention; Figure 10 Cross-sectional structural diagram of the vertical connection component in the present invention.

[0025] Reference numerals: 1, precast wall panel; 11, base plate; 111, embedding groove; 12, guide rail; 121, card slot; 13, protective layer; 131, card strip; 14, side frame; 141, positioning block; 142, card post; 143, connection groove; 2, horizontal connection component; 21, housing; 22, adjusting bolt; 23, rack; 24, adjusting spring; 25, gear column; 26, screw; 27, tensioning T block; 3, vertical connection component; 31, connection frame; 32, movable groove; 33, card block; 34, connecting rod; 35, sliding rod; 36, baffle; 37, return spring; 38, lever. Detailed implementation manners

[0026] The following elaborates on the preferred embodiments of the present invention in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making the protection scope of the present invention more clearly defined.

[0027] As Figures 1 - 5As shown in the figure, a quick splicing structure for a modular building wall includes a plurality of prefabricated wall panels 1, which are used to be spliced with each other to form a wall. The prefabricated wall panel 1 includes a base plate 11, and a plurality of guide rails 12 are symmetrically installed on both sides of the base plate 11. Protective layers 13 are symmetrically slid into both sides of the base plate 11 through the guide rails 12. A plurality of clamping bars 131 are fixedly connected to the opposite surfaces of the two protective layers 13. The plurality of clamping bars 131 are respectively connected to the inside of the plurality of guide rails 12 in an inserted and clamped manner, which is convenient for stably sliding the protective layer 13 into the inside of the guide rail 12 through the clamping bars 131, so as to realize the installation and fixation of the protective layer 13. Side frames 14 are symmetrically inserted into the end faces of the two groups of guide rails 12, which is convenient for quickly installing and fixing the protective layer 13 by using the guide rails 12, and using the side frames 14 to limit and fix it. A plurality of positioning blocks 141 are fixedly connected to the opposite surfaces of the two side frames 14. The plurality of positioning blocks 141 are respectively inserted into the inside of the plurality of guide rails 12, and the clamping columns 142 arranged on the upper and lower parts of the plurality of positioning blocks 141 are respectively connected to the clamping grooves 121 opened on the end faces of the guide rails 12 in a clamped manner, which is convenient for the side frame 14 to drive the positioning block 141 to tightly fix the position of the installed protective layer 13, and further reinforce the installation of the protective layer 13 in the clamped connection between the clamping column 142 and the clamping groove 121.

[0028] As Figures 6 - 8As shown, the horizontal connection component 2 is snap-connected to two precast wall panels 1 arranged horizontally. The horizontal connection component 2 includes a housing 21. One end of the housing 21 is threadedly connected through an adjusting bolt 22. A rack 23 is tightly arranged against the end face of the adjusting bolt 22. The rack 23 is arranged in a rectangular frame, and the outer wall is slidably connected to the inner wall of the housing 21. At the same time, the end face of the adjusting spring 24 tightly arranged against the end face of the rack 23 is tightly arranged against the inner part of the end face of the housing 21, facilitating the stable sliding of the rack 23 inside the housing 21, thereby stably driving the rotation of the gear column 25 and using the adjusting spring 24 for position tightening and fixing. The other end face of the rack 23 is tightly arranged with an adjusting spring 24. Two gear columns 25 are meshed and connected to the inner wall of the rack 23. Screw rods 26 are symmetrically threadedly connected to the inner walls of the two gear columns 25. Tightening T-blocks 27 are fixedly connected to the opposite end faces of the two groups of screw rods 26. Rotate the adjusting bolt 22 so that the rack 23 tightly arranged against its end face drives the two meshed and connected gear columns 25 to rotate. At the same time, the adjusting spring 24 at the bottom is squeezed and tightened. The gear column 25 drives the screw rod 26 threadedly connected to its inner wall to move, and then the tightening T-block 27 at the end face is pulled inward, so that the side frames 14 on both sides are closely attached to both sides of the housing 21, and the protective layers 13 on the precast wall panels 1 are hermetically and tightly pressed against each other, completing the connection and fixation of the precast wall panels 1 in the horizontal direction. The two groups of tightening T-blocks 27 respectively penetrate the two side walls of the housing 21 and are slidably connected to the housing 21. At the same time, the two groups of tightening T-blocks 27 respectively slide into the connection grooves 143 arranged on the adjacent side frames 14 on both sides, facilitating the stable sliding of the tightening T-blocks 27 during adjustment, so that they drive the side frames 14 to approach and fix through the connection grooves 143.

[0029] As Figure 9 and Figure 10As shown in the figure, the vertical connection component 3 is snap-connected to two precast wall panels 1 arranged in the vertical direction. The vertical connection component 3 includes a connection frame 31. An activity groove 32 is provided in the middle of the connection frame 31. Clamping blocks 33 are symmetrically and rotatably connected to both sides of the connection frame 31 near the top position. The two groups of clamping blocks 33 are respectively snap-connected to the embedding grooves 111 opened in the two adjacent base plates 11. Connecting rods 34 are rotatably connected to the opposite surfaces of the two groups of clamping blocks 33. Slide rods 35 are rotatably connected to the end faces of the two groups of connecting rods 34. Baffles 36 are threadedly sleeved on the slide rods 35 near the connecting rods 34. A return spring 37 is wrapped around the outer wall of the slide rod 35. The end faces of the two groups of return springs 37 are respectively abutted against the connection frame 31 and the baffle 36. The two shift rods 38 are both movably connected to the inside of the activity groove 32, which is convenient to drive the connecting rod 34 on the slide rod 35 to reset by using the return spring 37, so that the clamping block 33 rotatably connected to the end face is stably snap-connected to the inside of the embedding groove 111, ensuring the firmness between the two precast wall panels 1. The two groups of slide rods 35 respectively penetrate through the connection frame 31 near the middle position, and are connected to the shift rod 38 through a sleeve bolt threadedly connected to the end face. By using the reset elasticity of the compressed return spring 37, the baffle 36 drives the slide rod 35 to slide, and the connecting rod 34 pushes the clamping block 33 to rotate, so that it is stably snap-connected to the inside of the embedding groove 111, realizing the connection and fixation of the vertical connection component 3 and the base plate 11. When disassembly is required later, only the shift rod 38 needs to be pressed relatively, and then the slide rod 35 can drive the clamping block 33 on the connecting rod 34 to move away from the inside of the embedding groove 111, thus completing the disassembly between the two precast wall panels 1.

[0030] As Figures 1 - 10 shown, a splicing method for a quick splicing structure of a modular building wall includes the following steps: S1. First, a plurality of guide rails 12 are connected to both sides of the base plate 11 in an orderly manner by bolts; S2. Then, the protective layers 13 on both sides are inserted into the guide rails 12 through the card strips 131; S3. Then, the two side frames 14 are inserted into the end faces of the guide rails 12 through the positioning blocks 141, so that the clamping columns 142 on the positioning blocks 141 are embedded into the inside of the card slots 121, thereby fixing the installed protective layer 13 by using the side frames 14; S4. Then, the horizontal connection component 2 is slid into the inside of the connection groove 143 provided on the outside of the side frames 14 on the opposite faces of the two precast wall panels 1 through the tensioning T-block 27, and the top and bottom of the housing 21 are flush with the top and bottom of the side frames 14 respectively; S5. Next, rotate the adjusting bolt 22 so that the rack 23 against which its end surface abuts drives the two gear columns 25 engaged and connected to rotate. At the same time, squeeze and press the adjusting spring 24 at the bottom. The gear column 25 drives the screw rod 26 threadedly connected to the inner wall to move, so that the tensioning T-block 27 on the end surface pulls inward, making the side frames 14 on both sides closely fit on both sides of the housing 21, and the protective layers 13 on the precast wall panels 1 are hermetically pressed against each other, completing the connection and fixation of the precast wall panel 1 in the horizontal direction; S6. Next, insert the two vertical connection components 3 into the embedding grooves 111 opened on the substrate 11 respectively. At this time, when the clamping block 33 is squeezed by the embedding groove 111, it rotates on the connection frame 31, so that the connecting rod 34 drives the sliding rod 35 to slide on the connection frame 31, making the baffle 36 squeeze the return spring 37. When the clamping block 33 reaches the inner bottom of the embedding groove 111, the restoring elasticity of the return spring 37 makes the baffle 36 drive the sliding rod 35 to slide, and makes the connecting rod 34 push the clamping block 33 to rotate, so that it is stably clamped and connected inside the embedding groove 111, realizing the connection and fixation of the vertical connection component 3 and the substrate 11; S7. Finally, insert the other precast wall panel 1 to be installed in the vertical direction into the top of the fixed vertical connection component 3 through the embedding groove 111 provided at the bottom of the substrate 11 inside it. Use the clamping block 33 on the vertical connection component 3 to tightly connect and fix the two precast wall panels 1 in the vertical direction. Repeat the steps of S4 - S6 to complete the splicing and fixation of multiple precast wall panels 1.

[0031] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are similarly included in the patent protection scope of the present invention.

Claims

1. A rapid splicing structure of modular building walls, characterized by: include A plurality of prefabricated wall panels (1) are used to be spliced ​​together to form a wall; A plurality of horizontal connection components (2), wherein the horizontal connection components (2) are snap-connected to two prefabricated wall panels (1) arranged in a horizontal direction; A plurality of vertical connection components (3), wherein the vertical connection components (3) are snap-connected to two prefabricated wall panels (1) arranged in a vertical direction.

2. The rapid splicing structure of a modular building wall according to claim 1, characterized in that: The prefabricated wall panel (1) comprises a base plate (11), a plurality of guide rails (12) are symmetrically mounted on both sides of the base plate (11), a protective layer (13) is symmetrically slid into both sides of the base plate (11) through the guide rails (12), and side frames (14) are symmetrically inserted into the end surfaces of the two sets of guide rails (12).

3. The rapid splicing structure of a modular building wall according to claim 2, characterized in that: Opposite surfaces of the two protective layers (13) are fixedly connected with a plurality of clamping strips (131), and the plurality of clamping strips (131) are respectively connected to the interior of the plurality of guide rails (12) in an insert-type clamping manner.

4. The rapid splicing structure of a modular building wall according to claim 2, characterized in that: Opposite surfaces of the two side frames (14) are fixedly connected with a plurality of positioning blocks (141); the plurality of positioning blocks (141) are respectively inserted into the interior of the plurality of guide rails (12); and the clamping columns (142) provided at the upper and lower parts of the plurality of positioning blocks (141) are respectively clamped and connected with the clamping grooves (121) provided on the end surfaces of the guide rails (12).

5. The rapid splicing structure of a modular building wall according to claim 4, characterized in that: The horizontal connection assembly (2) comprises a housing (21), one end of the housing (21) is threadedly connected with an adjusting bolt (22), the end surface of the adjusting bolt (22) is tightly provided with a rack (23), the other end surface of the rack (23) is tightly provided with an adjusting spring (24), the inner wall of the rack (23) is meshingly connected with two gear columns (25), the inner walls of the two gear columns (25) are symmetrically threadedly connected with screw rods (26), and opposite end surfaces of the two groups of screw rods (26) are fixedly connected with tensioning T blocks (27).

6. The rapid splicing structure of a modular building wall according to claim 5, characterized in that: The rack (23) is arranged in a rectangular frame, and the outer wall is slidably connected to the inner wall of the shell (21), and the end surface of the rack (23) is pressed against the end surface of the adjustment spring (24) pressed against the inside of the end surface of the shell (21).

7. The rapid splicing structure of a modular building wall according to claim 5, characterized in that: The two groups of tensioning T blocks (27) respectively penetrate the two side walls of the shell (21) and are slidably connected to the shell (21). At the same time, the two groups of tensioning T blocks (27) respectively slide into the connection grooves (143) provided on the adjacent two side frames (14).

8. The rapid splicing structure of a modular building wall according to claim 2, characterized in that: The vertical connection assembly (3) comprises a connection frame (31), a movable groove (32) is provided in the middle of the connection frame (31), and blocks (33) are symmetrically rotatably connected to the top positions of both sides of the connection frame (31), and two groups of the blocks (33) are respectively engaged with the embedding grooves (111) provided in the two adjacent base plates (11), and the opposite surfaces of the two groups of blocks (33) are rotatably connected to the connection rods (34), and the end surfaces of the two groups of connection rods (34) are rotatably connected to the sliding rods (35), and the two groups of sliding rods (35) are threadedly sleeved with baffles (36) near the connection rods (34), and the outer wall of the sliding rod (35) is wrapped with a reset spring (37), and the two groups of sliding rods (35) are respectively connected to the middle positions of the connection frame (31) and connected to the shifting rods (38) through sleeve bolts threadedly connected to the end surfaces.

9. The rapid splicing structure of a modular building wall according to claim 8, characterized in that: The end surfaces of the two groups of return springs (37) are respectively pressed against the connecting frame (31) and the baffle (36), and the two shifting rods (38) are movably connected to the inside of the movable groove (32).

10. A method for assembling a modular building wall rapid assembly structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Firstly, a plurality of guide rails (12) are bolted to two sides of a base plate (11) in an orderly manner; S2, then inserting the protective layers (13) on both sides into the interior of the guide rail (12) through the clamping strip (131); S3, then inserting the two side frames (14) into the end surface of the guide rail (12) through the positioning block (141), so that the clamping column (142) on the positioning block (141) is embedded in the inside of the clamping groove (121), thereby using the side frame (14) to fix the installed protective layer (13); S4, then slide the horizontal connection assembly (2) into the connection groove (143) provided on the outer side of the side frame (14) on the opposite side of the two prefabricated wall panels (1) by tightening the T block (27), and make the top and bottom of the shell (21) flush with the top and bottom of the side frame (14) respectively; S5, then the adjusting bolt (22) is rotated, so that the rack (23) against which the end face is pressed drives the two meshingly connected gear columns (25) to rotate, and at the same time the adjusting spring (24) at the bottom is squeezed and pressed, and the gear column (25) drives the screw (26) connected to the inner wall thread to move, thereby pulling the tensioning T block (27) at the end face inward, so that the side frames (14) on both sides are tightly attached to the two sides of the shell (21), and the protective layers (13) on the prefabricated wall panels (1) are sealed and pressed against each other, thereby completing the connection and fixation of the prefabricated wall panels (1) in the horizontal direction; S6, then the two vertical connection components (3) are respectively inserted into the embedding grooves (111) provided on the base plate (11), and at this time, when the block (33) is squeezed by the embedding grooves (111), it rotates on the connecting frame (31), so that the connecting rod (34) drives the sliding rod (35) to slide on the connecting frame (31), so that the baffle (36) squeezes the return spring (37), and when the block (33) penetrates into the inner bottom of the embedding groove (111), the return elasticity of the return spring (37) causes the baffle (36) to drive the sliding rod (35) to slide, and causes the connecting rod (34) to push the block (33) to rotate, so that it is stably engaged and connected to the inside of the embedding groove (111), thereby realizing the connection and fixation between the vertical connection component (3) and the base plate (11); S7. Finally, another vertical prefabricated wall panel (1) to be installed is inserted into the top of the fixed vertical connection component (3) through the embedding groove (111) provided at the bottom of its internal base plate (11), and the two vertical prefabricated wall panels (1) are tightly connected and fixed by using the clamping block (33) on the vertical connection component (3). Repeating steps S4 to S6 can complete the splicing and fixing of multiple prefabricated wall panels (1).

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