Anti-cracking device for ALC board and construction method thereof

Abstract

This invention relates to the field of wall panel installation technology and discloses an ALC panel anti-cracking device, including a wall panel body, a fixing member, a connecting insert, and a connecting fitting member. The connecting insert and the connecting fitting member engage, and a shaping component is used to fix the distance between adjacent wall panels. This invention can fix multiple wall panels together to form a combined whole, increasing the force-bearing area during fixing, improving the stability between wall panels, preventing cracking between wall panels, and allowing fixing pieces to be fixed to the wall panels before installation. This allows for installation of fixing pieces on the ground, improving work efficiency and reducing the danger of workers working at heights. Furthermore, after applying adhesive, adjacent wall panels can be tightened together, ensuring a close fit, and the compression can make the adhesive distribution between adjacent wall panels more uniform, improving the stability of the wall after installation.

Description

Technical Field

[0001] This invention relates to the field of wall panel installation technology, specifically to an ALC panel anti-cracking device and its construction method. Background Technology

[0002] ALC panels are porous, lightweight concrete precast panels (containing treated steel bars for reinforcement) made primarily from fly ash, cement, lime, and aluminum powder through processes such as batching, mixing, pouring, pre-curing, cutting, and autoclaving. ALC panels have low density and high strength, making them a high-performance new type of building envelope material. In recent years, they have been widely used in prefabricated buildings, especially in the construction of exterior and interior partition walls. ALC panel partition walls are composed of multiple ALC panels joined together, with seams between adjacent panels. In practical engineering applications, due to the short manufacturing time of the ALC panels and their high moisture content, coupled with factors such as material shrinkage, temperature changes, and the material properties and deformation compatibility with steel structures, cracking can easily occur at the panel seams during construction and subsequent use. This can affect the normal use of the building and pose safety hazards.

[0003] Existing methods for preventing cracking in ALC panel partition walls mainly include: firstly, bonding ALC panels together with special mortar at the joints; and secondly, applying fiberglass mesh to the outside of the ALC panel joints to further prevent cracking. However, existing crack prevention methods still have the following problems: the crack resistance of mortar or fiberglass mesh is not strong. When the panels shrink due to drying, significant changes in temperature and humidity, or structural deformation occur, the tensile strength of brittle materials like mortar and fiberglass mesh is extremely low, making it difficult to control the further expansion of cracks.

[0004] For example, patent CN117145094A discloses an anti-cracking device for ALC panel partition walls and its construction method. This device is applied to the joint of two adjacent ALC panel partition walls and includes a connecting piece, a first fixing member, a second fixing member, a first expansion bolt, and a second expansion bolt. The first and second expansion bolts are respectively installed within the two partition walls. The connecting piece has a fixing hole and a guide hole. The first fixing member passes through the fixing hole from one side of the connecting piece and connects to the first expansion bolt. The diameter of the guide hole gradually decreases from the end near the fixing hole to the end away from the fixing hole. The outer diameter of the second fixing member gradually increases from the first end to the second end. The first end of the second fixing member passes through the guide hole from one side of the connecting piece and connects to the second expansion bolt. The initial screw-in position of the second fixing member is the end of the guide hole away from the fixing hole, and the final penetration position is the other end. This device applies prestress to two adjacent partition walls, effectively preventing wall cracking, eliminating safety hazards, and ensuring the normal use of the partition walls. The aforementioned patent uses an anti-cracking device to fix two connected ALC panels together. However, the connecting pieces used in this device are separate, have a small bearing area, generate a small fixing force, and multiple wall panels do not form a tight whole. Therefore, there is an urgent need for an ALC panel anti-cracking device to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide an ALC board anti-cracking device and its construction method to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an ALC board anti-cracking device, including a wall panel body, and further including a fixing member, a connecting insert and a connecting fitting member, wherein the fixing member is fixedly connected to the wall panel body, the connecting insert and the connecting fitting member are disposed at both ends of the fixing member, the connecting insert and the connecting fitting member engage, and the connecting insert and the connecting fitting member have an engagement state one and an engagement state two; The first engagement state is: the connecting fitting engages with the connecting insert, and the fixing member connected to the connecting fitting and the connecting insert is not the same. In this case, the connecting insert and the connecting fitting engage to fix the adjacent wall panel. The second engagement state includes: the connecting fitting and the connecting insert are engaged, and the connecting fitting and the connecting insert are connected to the same fixing member, and after engagement, a triangle is formed between the connecting fitting, the connecting insert and the fixing member; And a shaping component, which is connected to the connecting fitting and the connecting insert in the second engagement state, and is used to adjust the distance between adjacent wall panels.

[0007] Furthermore, the fastener includes a fixing plate, and the wall panel has a fixing groove that matches the fixing plate. The fixing plate is fixed to the wall panel by expansion screws.

[0008] Furthermore, the connecting insert includes a connecting piece one, one end of which is hinged to one end of the fixing piece, and the other end of the connecting piece one is provided with an embedding part, and a connecting hole one is provided on the side wall of the embedding part.

[0009] Furthermore, the connecting fitting includes a second connecting piece, one end of which is hinged to one end of the fixing piece, and the other end of the second connecting piece is provided with a fitting part that engages with the embedded part. The side wall of the fitting part is provided with a second connecting hole that matches the first connecting hole. After passing the fastening bolt through the first connecting hole and the second connecting hole, the first connecting piece and the second connecting piece are fixed together.

[0010] Furthermore, the shaping component includes clamps and an adjustment unit. The adjustment unit is used to adjust the distance between the two clamps and to insert the ends of the clamps into the triangular area formed after the adjacent connecting inserts and connecting inserts are engaged.

[0011] Furthermore, the clamping device includes a clamping shaft one and a clamping shaft two. The adjusting unit drives the clamping shaft one and the clamping shaft two to move. The clamping shaft one and the clamping shaft two are located in different triangular areas and are in contact with the connecting insert and the connecting fitting. The clamping shaft one and the clamping shaft two tighten inward to fix the adjacent wall panel.

[0012] Furthermore, the adjustment unit includes an adjustment box and a central plate. The adjustment box has symmetrically arranged slidingly connected adjustment rods inside. The first clamping shaft and the second clamping shaft are located at the ends of the adjustment rods. The central plate is rotatably located inside the adjustment box. The rotation of the central plate is controlled by a rotating component. The bottom of the central plate has symmetrically arranged actuating shafts. The actuating shafts are inserted into the guide frame and are slidably connected to the guide frame. The adjustment rods are fixedly connected to the guide frame.

[0013] Furthermore, the rotating component includes a central rod and a connecting sleeve. The connecting sleeve is fixedly connected to the central disc. One end of the central rod extends into the interior of the connecting sleeve. A spline shaft is provided at the bottom of the central rod. A spline groove is provided inside the connecting sleeve. A connecting disc is fitted onto the outer wall of the central rod. The connecting disc is fixedly connected to the adjusting box. An external thread is provided on the outer wall of the central rod. A threaded hole matching the external thread is provided inside the connecting disc. A throttle handle is provided at the end of the central rod.

[0014] A method for constructing an anti-cracking device for ALC panels, the method comprising the following steps: Step S1: When pouring the wall panel, leave a fixing groove on the outer wall of the wall panel; Step S2: After embedding the fixing piece into the fixing groove, use expansion screws to fix the fixing piece; Step S3: When installing the wall panels, apply adhesive evenly between adjacent wall panels; Step S4: Engage the connecting insert and connecting fitting that are connected to the same fixing piece to form a triangular area. Then, insert clamping shaft one and clamping shaft two into the two triangular areas respectively. Use the adjustment unit to tighten clamping shaft one and clamping shaft two to adjust the distance between the two wall panels. Step S5: After the adhesive has solidified, remove the shaping component and release the connecting insert and connecting fitting from the current engagement state two. Then adjust the connecting insert and connecting fitting to the engagement state one to fix the position of the adjacent wall panel.

[0015] Furthermore, in step S2, if the fixing groove is located on a wall panel, the fixing piece is fixed in the fixing groove before the wall panel is installed; if the fixing groove is located on two wall panels combined, the fixing piece is fixed in the fixing groove after the wall panel is installed.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are: This invention can fix multiple wall panels together to form a unified whole, increasing the stress-bearing area during fixing, improving the stability between wall panels, preventing cracking, and allowing fixing plates to be fixed to the wall panels before installation. This ground-based installation of the fixing plates improves work efficiency and reduces the danger of workers working at heights. Furthermore, after applying adhesive, adjacent wall panels can be tightened together to ensure a tight fit. After a period of time, the adhesive between adjacent wall panels hardens, resulting in a tight and fixed bond. The compression also ensures a more even distribution of the adhesive between adjacent wall panels, further improving the stability of the wall after installation. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the entire invention; Figure 2 This is the present invention. Figure 1 Enlarged diagram of point A in the middle Figure 3 This is the present invention. Figure 1 Enlarged diagram of C; Figure 4 This is a structural schematic diagram of the fixed wall panel body of the pre-shaped component of the present invention; Figure 5 This is the present invention. Figure 4 Enlarged diagram of B in the middle; Figure 6 This is a schematic diagram of the fixing groove of the present invention; Figure 7 This is a front sectional view of the adjustment box of the present invention; Figure 8 This is a side cross-sectional view of the adjustment box of the present invention; In the diagram: 1. Wall panel; 2. Fixing plate; 3. Fixing groove; 4. Expansion screw; 5. Connecting plate one; 6. Embedded part; 7. Connecting hole one; 8. Connecting plate two; 9. Fitting part; 10. Connecting hole two; 11. Clamping shaft one; 12. Clamping shaft two; 13. Adjusting box; 14. Center plate; 15. Adjusting rod; 16. Actuating shaft; 17. Guide frame; 18. Center rod; 19. Connecting sleeve; 20. Splined shaft; 21. Splined groove; 22. Connecting plate; 23. External thread; 24. Threaded hole; 25. Turn handle. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1, please refer to Figures 1-5 This invention provides a technical solution: an ALC panel anti-cracking device, comprising a wall panel body 1, and further comprising a fixing member, a connecting insert, and a connecting fitting member. The fixing member is fixedly connected to the wall panel body 1. The connecting insert and the connecting fitting member are disposed at both ends of the fixing member. The connecting insert and the connecting fitting member engage, and the connecting insert and the connecting fitting member have an engagement state one and an engagement state two. (Reference) Figure 2 and Figure 3 ,in Figure 2 This is a schematic diagram of the first occlusal state. Figure 3 This is a schematic diagram of the second engagement state. The first engagement state is: the connecting fitting engages with the connecting insert, and the fixing members connected to the connecting fitting and the connecting insert are not the same. In this case, the connecting insert and the connecting fitting fix the adjacent wall panel 1 after engagement. The second engagement state includes: the connecting fitting engages with the connecting insert, and the connecting fitting and the connecting insert are connected to the same fixing member. After engagement, the connecting fitting, the connecting insert, and the fixing member form a triangle. The fastener includes a fixing plate 2, and the wall panel 1 is provided with a fixing groove 3 that matches the fixing plate 2. The fixing plate 2 is fixed to the wall panel 1 by expansion screws 4.

[0020] The connecting insert includes a connecting piece 5, one end of which is hinged to one end of the fixing piece 2, and the other end of the connecting piece 5 is provided with an embedding part 6, and a connecting hole 7 is provided on the side wall of the embedding part 6.

[0021] The connecting fitting includes a second connecting piece 8, one end of which is hinged to one end of the fixing piece 2. The other end of the second connecting piece 8 is provided with a fitting part 9, which engages with the embedded part 6. The side wall of the fitting part 9 is provided with a second connecting hole 10 that matches the first connecting hole 7. After passing the fastening bolt through the first connecting hole 7 and the second connecting hole 10, the first connecting piece 5 and the second connecting piece 8 are fixed together.

[0022] The specific implementation method for fixing the position of two adjacent wall panels 1 is as follows: the first wall panel 1 is fixed to the wall using angle iron, and then the second wall panel 1 is arranged and installed. The fixing piece 2 is fixed in the fixing groove 3 using expansion screws 4. At this time, the connecting insert on the first wall panel 1 can be engaged with the connecting fitting on the adjacent wall panel 1. The engagement process is as follows: the insert part 6 of the connecting piece 1 5 engages with the fitting part 9 of the connecting piece 2 8. The fitting part 9 includes an L-shaped groove, and the insert part 6 includes a protrusion. When engaging, the protrusion fits into the L-shaped groove. Then, the fastening bolt is passed through the connecting hole 1 7 and the connecting hole 2 10 to fix the connecting piece 1 5 and the connecting piece 2 8 together. At this time, the first wall panel 1 and the second wall panel 1 can be fixed together. Similarly, the second wall panel 1 and the third wall panel 1 can be fixed together, so that multiple wall panels 1 can be fixed together to form a combined whole. This increases the force-bearing area during fixing, improves the stability between wall panels 1, and prevents cracking between wall panels 1.

[0023] In a preferred embodiment, refer to Figure 1 and Figure 4 The fixing groove 3 is located on the center line of the side wall of a wall panel 1, and both ends of the fixing piece 2 are fixed to the same wall panel 1. At this time, the wall panel 1 can be placed horizontally before installation, and then the fixing piece 2 can be fixed in the fixing groove 3 to reduce the danger of workers working at height.

[0024] Example 2 differs from Example 1 in that it refers to... Figure 6 In a preferred embodiment, the fixing groove 3 is located at the junction of two wall panels 1 and is assembled together. At this time, the two ends of the fixing piece 2 are respectively fixed to the two adjacent wall panels 1.

[0025] Example 3, reference Figure 7 and Figure 8 A shaping component is connected to the connecting fitting and connecting insert in the second engagement state, and is used to adjust the distance between adjacent wall panels 1.

[0026] The shaping assembly includes clamps and an adjustment unit. The adjustment unit is used to adjust the distance between the two clamps and to insert the ends of the clamps into the triangular area formed after the adjacent connecting inserts and connecting inserts are engaged.

[0027] The clamping device includes a clamping shaft 11 and a clamping shaft 12. The adjusting unit drives the clamping shaft 11 and the clamping shaft 12 to move. The clamping shaft 11 and the clamping shaft 12 are located in different triangular areas and are in contact with the connecting insert and the connecting fitting. The clamping shaft 11 and the clamping shaft 12 tighten inward to fix the adjacent wall panel 1.

[0028] The adjustment unit includes an adjustment box 13 and a central disk 14. The adjustment box 13 has symmetrically arranged slidingly connected adjustment rods 15. The clamping shaft 11 and the clamping shaft 12 are located at the ends of the adjustment rods 15. The central disk 14 is rotatably located inside the adjustment box 13. The rotation of the central disk 14 is controlled by a rotating component. The bottom of the central disk 14 has symmetrically arranged actuating shafts 16. The actuating shafts 16 are inserted into the guide frame 17 and are slidably connected to the guide frame 17. The adjustment rods 15 are fixedly connected to the guide frame 17.

[0029] The rotating component includes a central rod 18 and a connecting sleeve 19. The connecting sleeve 19 is fixedly connected to the central disc 14. One end of the central rod 18 extends into the interior of the connecting sleeve 19. A spline shaft 20 is provided at the bottom of the central rod 18. A spline groove 21 is provided inside the connecting sleeve 19. A connecting disc 22 is fitted on the outer wall of the central rod 18. The connecting disc 22 is fixedly connected to the adjusting box 13. An external thread 23 is provided on the outer wall of the central rod 18. A threaded hole 24 matching the external thread 23 is provided inside the connecting disc 22. A throttle 25 is provided at the end of the central rod 18.

[0030] The specific implementation method for adjusting the distance between two adjacent wall panels 1 is as follows: Connecting inserts and connecting fittings located at both ends of the same fixing piece 2 are engaged to form a triangle; this is the second engagement state. Then, clamping shaft one 11 is inserted into one triangular area, and clamping shaft two 12 is inserted into another triangular area. At this time, the handle 25 can be rotated, causing the handle 25 to drive the center rod 18 to rotate. When the center rod 18 rotates, its bottom spline shaft 20 engages with the spline groove 21, driving the center disc 14 to rotate. At this time, the center disc 14 will drive the two actuating shafts 16 to rotate, and the actuating shafts 16 will drive the two guide frames 17 to move, causing the two guide frames 17 to move in opposite directions simultaneously. The guide frames 17 will drive the adjusting rod 15 to move, causing the adjusting rod 15 to tighten the clamping shaft one 11 and clamping shaft two 12, thereby causing the clamping shaft one 11 and clamping shaft two 12 to form a triangular area. The connecting insert and the connecting fitting create a clamping effect, thereby tightly fitting two adjacent wall panels 1 together. After a period of time, the adhesive between the two adjacent wall panels 1 hardens, making the two adjacent wall panels 1 tightly fitted and fixed together. The compression can make the adhesive between the two adjacent wall panels 1 more evenly distributed, improving the stability of the wall after installation. The external thread 23 on the outer wall of the center rod 18 engages with the threaded hole 24. When the center rod 18 rotates, the thread engagement causes the center rod 18 to shift. The space inside the connecting sleeve 19 provides space for the displacement of the connecting rod. When the center rod 18 does not rotate, the thread engagement limits the center rod 18, thereby limiting the clamping shaft. This ensures that the clamping shaft can maintain its final adjusted state after it stops rotating, so as to ensure that a stable force can be generated on the wall panel 1.

[0031] Example 4: A construction method for an ALC board anti-cracking device, the construction method comprising the following steps: Step S1: When pouring the wall panel 1, a fixing groove 3 is left on the outer wall of the wall panel 1; Step S2: After embedding the fixing piece 2 into the fixing groove 3, fix the fixing piece 2 with the expansion screw 4; Step S3: When installing wall panel 1, apply adhesive evenly between two adjacent wall panels 1. Step S4: Engage the connecting insert and connecting fitting that are connected to the same fixing piece 2 to form a triangular area. Then, insert clamping shaft 11 and clamping shaft 212 into the two triangular areas respectively. Use the adjustment unit to tighten clamping shaft 11 and clamping shaft 212 to adjust the distance between the two wall panels 1. Step S5: After the adhesive has solidified, remove the shaping component and release the connecting insert and connecting fitting from the current engagement state two. Then adjust the connecting insert and connecting fitting to the engagement state one to fix the position of the adjacent wall panel 1.

[0032] In step S2, if the fixing groove 3 is located on a wall panel 1, the fixing piece 2 is fixed in the fixing groove 3 before the wall panel 1 is installed; if the fixing groove 3 is located on two wall panels 1 combined together, the fixing piece 2 is fixed in the fixing groove 3 after the wall panel 1 is installed.

[0033] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for preventing cracking of an ALC board, comprising a wallboard body (1), characterized in that: It also includes a fastener, a connecting insert and a connecting fitting, wherein the fastener is fixedly connected to the wall panel (1), the connecting insert and the connecting fitting are disposed at both ends of the fastener, the connecting insert and the connecting fitting engage, and the connecting insert and the connecting fitting have an engagement state one and an engagement state two. The first engagement state is: the connecting fitting engages with the connecting insert, and the fixing member connected to the connecting fitting and the connecting insert is not the same. At this time, the connecting insert and the connecting fitting engage to fix the adjacent wall panel (1). The second engagement state includes: the connecting fitting and the connecting insert are engaged, and the connecting fitting and the connecting insert are connected to the same fixing member, and after engagement, a triangle is formed between the connecting fitting, the connecting insert and the fixing member; And a shaping component, which is connected to the connecting fitting and the connecting insert in the second engagement state, and is used to adjust the distance between adjacent wall panels (1).

2. An ALC board anti-cracking device according to claim 1, characterized in that: The fastener includes a fixing plate (2), and the wall panel (1) is provided with a fixing groove (3) that matches the fixing plate (2). The fixing plate (2) is fixed to the wall panel (1) by an expansion screw (4).

3. The ALC plate anti-cracking device according to claim 2, characterized in that: The connecting insert includes a connecting piece (5), one end of which is hinged to one end of the fixing piece (2), and the other end of the connecting piece (5) is provided with an insert (6), and a connecting hole (7) is provided on the side wall of the insert (6).

4. The ALC plate anti-cracking device according to claim 3, characterized in that: The connecting fitting includes a second connecting piece (8), one end of which is hinged to one end of the fixing piece (2), and the other end of the second connecting piece (8) is provided with a fitting part (9), which engages with the embedded part (6), and the side wall of the fitting part (9) is provided with a second connecting hole (10) that matches the first connecting hole (7). After passing the fastening bolt through the first connecting hole (7) and the second connecting hole (10), the first connecting piece (5) and the second connecting piece (8) are fixed together.

5. The ALC plate anti-cracking device according to claim 4, characterized in that: The shaping assembly includes clamps and an adjustment unit. The adjustment unit is used to adjust the distance between the two clamps and to insert the ends of the clamps into the triangular area formed after the adjacent connecting inserts and connecting inserts are engaged.

6. The ALC plate anti-cracking device according to claim 5, characterized in that: The clamping device includes a clamping shaft one (11) and a clamping shaft two (12). The adjusting unit drives the clamping shaft one (11) and the clamping shaft two (12) to move. The clamping shaft one (11) and the clamping shaft two (12) are located in different triangular areas and are in contact with the connecting insert and the connecting fitting. The clamping shaft one (11) and the clamping shaft two (12) tighten inward to fix the adjacent wall panel (1).

7. The ALC plate anti-cracking device according to claim 6, characterized in that: The adjustment unit includes an adjustment box (13) and a center plate (14). The adjustment box (13) is symmetrically provided with slidingly connected adjustment rods (15). The clamping shaft one (11) and the clamping shaft two (12) are located at the ends of the adjustment rods (15). The center plate (14) is rotatably located inside the adjustment box (13). The rotation of the center plate (14) is controlled by a rotating component. The bottom of the center plate (14) is symmetrically provided with a toggle shaft (16). The toggle shaft (16) is inserted into the guide frame (17). The toggle shaft (16) is slidably connected to the guide frame (17). The adjustment rod (15) is fixedly connected to the guide frame (17).

8. The ALC plate anti-cracking device according to claim 7, characterized in that: The rotating component includes a central rod (18) and a connecting sleeve (19). The connecting sleeve (19) is fixedly connected to the central disc (14). One end of the central rod (18) extends into the interior of the connecting sleeve (19). A spline shaft (20) is provided at the bottom of the central rod (18). A spline groove (21) is provided inside the connecting sleeve (19). A connecting disc (22) is fitted on the outer wall of the central rod (18). The connecting disc (22) is fixedly connected to the adjusting box (13). An external thread (23) is provided on the outer wall of the central rod (18). A threaded hole (24) matching the external thread (23) is provided inside the connecting disc (22). A throttle (25) is provided at the end of the central rod (18).

9. A construction method for an ALC board anti-cracking device, applied to the ALC board anti-cracking device according to any one of claims 6-8, characterized in that: The construction method includes the following steps: Step S1: When pouring the wall panel (1), a fixing groove (3) is left on the outer wall of the wall panel (1); Step S2: After embedding the fixing piece (2) into the fixing groove (3), fix the fixing piece (2) with the expansion screw (4); Step S3: When installing the wall panel (1), apply adhesive evenly between two adjacent wall panels (1); Step S4: Engage the connecting insert and connecting fitting that are connected to the same fixing piece (2) to form a triangular area. At this time, insert clamping shaft one (11) and clamping shaft two (12) into the two triangular areas respectively. Use the adjustment unit to drive clamping shaft one (11) and clamping shaft two (12) to tighten and adjust the distance between the two wall panels (1). Step S5: After the adhesive has solidified, remove the shaping component and release the connection insert and connection fitting from the current engagement state two. Then adjust the connection insert and connection fitting to the engagement state one to fix the position of the adjacent wall panel (1).

10. The construction method of the ALC plate anti-cracking device according to claim 9, characterized in that: In step S2, if the position of the fixing groove (3) is located on a wall panel (1), the fixing piece (2) is fixed in the fixing groove (3) before the wall panel (1) is installed; if the position of the fixing groove (3) is located on two wall panels (1) combined together, the fixing piece (2) is fixed in the fixing groove (3) after the wall panel (1) is installed.

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