Quick splicing lock catch structure of sandwich panel

Abstract

The utility model relates to splicing lock catch technical field discloses quick splicing lock catch structure of sandwich, including triangular block and limiting plate, the left and right sides of the front of triangular block all are provided with mounting hole, the front side rotationally connected with U shaped board of limiting plate, the inner wall left and right sides of U shaped board all rotationally connected with rotating column, the inner wall of rotating column is provided with spiral column, the outer wall of spiral column is connected with the inner wall screw thread of rotating column, the top fixedly connected with triangular column of spiral column, the bottom fixedly connected with C shaped clamping block of triangular block. In the utility model, by placing triangular block on sandwich, using cross limiting block to insert into board, fixed with screw through hole, rotates U shaped board, makes rotating column and spiral column drive triangular column to move up to C shaped clamping block, reversely rotates U shaped board, makes triangular column clamped on C shaped clamping block, adjusts position through spiral column to realize even stress.

Description

Technical Field

[0001] This utility model relates to the field of splicing and locking technology, and in particular to a quick splicing and locking structure for sandwich panels. Background Technology

[0002] As a key component for connecting sandwich panels in the construction industry, the quick-connect interlocking structure for sandwich panels plays an important role in improving construction efficiency and ensuring the integrity of building structures. Through its cleverly designed mechanical structure, it achieves a quick and reliable connection between sandwich panels, reducing the cumbersome procedures in traditional splicing methods. It is applicable to various temporary buildings, prefabricated houses, and construction projects with strict requirements on construction cycles.

[0003] Early sandwich panel splicing used simple bolt and nut connections or snap-fit ​​structures. While bolt and nut connections provided some tightening force, the installation process was time-consuming and laborious, requiring each nut to be tightened individually. Furthermore, nuts were prone to loosening under long-term vibration or external forces. Snap-fit ​​structures, while convenient to install, relied solely on simple snap-fit ​​mechanisms, resulting in limited connection strength. To address these issues, current sandwich panel quick-assembly locking structures employ a multi-directional interlocking and elastic compression design. The multi-directional interlocking structure provides tightening force in multiple directions, while the elastic compression structure utilizes elastic elements to maintain pressure. While existing interlocking structures ensure tight connections, their stability remains a significant issue when dealing with hollow sandwich panels. Due to the hollow structure of the panels, localized deformation easily occurs on the surface when subjected to external loads. Since existing interlocking mechanisms are mostly installed on the surface of the hollow panels, uneven stress occurs at the contact points between the interlocking mechanisms and the hollow panels when the surface deforms. Over long-term use, the interlocking mechanisms may loosen above the hollow panels, leading to loose connections between the sandwich panels and severely impacting the stability and safety of the building structure. Therefore, further optimization of the interlocking structure is urgently needed. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a quick-connect locking structure for sandwich panels, which aims to improve the problem in the prior art where uneven force is applied at the contact point between the locking and the hollow panel when the panel surface deforms, resulting in loose connections between sandwich panels.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a quick-connect locking structure for sandwich panels, comprising a triangular block and a limiting plate. The triangular block has mounting holes on its front left and right sides. A U-shaped plate is rotatably connected to the front side of the limiting plate. Rotating columns are rotatably connected to the left and right sides of the inner wall of the U-shaped plate. A spiral column is provided on the inner wall of the rotating column. The outer wall of the spiral column is threadedly connected to the inner wall of the rotating column. A triangular column is fixedly connected to the top of the spiral column. A C-shaped locking block is fixedly connected to the bottom of the triangular block. The inner wall of the C-shaped locking block engages with the outer wall of the triangular column. A cross-shaped limiting block is fixedly connected to the rear side of the triangular block. Positioning holes are provided on the front upper and lower sides of the limiting plate. An adjustment mechanism is provided at the bottom of the triangular block. The adjustment mechanism is used to adjust the support between the two sandwich panels.

[0006] As a further description of the above technical solution: The adjustment mechanism includes two limiting posts. The top ends of the two limiting posts are fixedly connected to the left and right sides of the outer wall of the triangular block, respectively. The bottom ends of the limiting posts are fixedly connected to the top ends of the limiting plates. The outer walls of the two limiting posts are slidably connected to moving blocks. The rear side of the moving blocks is fixedly connected to T-shaped blocks. The front and rear sides of the outer walls of the T-shaped blocks are fixedly connected to limiting plates. The front side of the moving blocks is provided with rotating blocks. The rear side of the rotating blocks passes through the moving blocks and is fixedly connected to T-shaped locking posts.

[0007] As a further description of the above technical solution: Multiple flat plates are fixedly connected to the rear side of the limiting plate, and a slot is provided on the right side of the flat plate.

[0008] As a further description of the above technical solution: Limiting recesses are provided on both the upper and lower sides of the flat plate, and clamping plates are provided on the outer walls of multiple flat plates.

[0009] As a further description of the above technical solution: The card plate has multiple limiting notches on its left side, and the inner wall of the limiting notches engages with the outer wall of the flat plate.

[0010] As a further description of the above technical solution: A hollow block is fixedly connected to the right side of the card plate, and a C-shaped groove is opened on the front side of the U-shaped plate.

[0011] As a further description of the above technical solution: The inner wall of the bayonet engages with the outer wall of the card plate, and the inner wall of the limiting recess engages with the outer wall of the card plate.

[0012] As a further description of the above technical solution: The U-shaped plate is treated with anti-corrosion measures, and the outer wall dimensions of the rotating column are the same as the inner wall dimensions of the U-shaped plate.

[0013] This utility model has the following beneficial effects: 1. In this utility model, a triangular block is placed on a sandwich panel, a cross-shaped limiting block is inserted into the panel, and screws are used to fix it through the hole. Then, a limiting plate is placed on another sandwich panel and screws are used to fix it through the hole. In use, the U-shaped plate is rotated so that the rotating column and the spiral column drive the triangular block to move upward into the C-shaped locking block. The U-shaped plate is rotated in the opposite direction so that the triangular block is locked on the C-shaped locking block. The position is adjusted by the spiral column to ensure that the triangular block and the C-shaped locking block are tightly locked, thereby achieving uniform force distribution.

[0014] 2. In this utility model, after installing the triangular block and the limiting plate, the moving block is pushed to move on the limiting post. The T-shaped block enters between the two sandwich panels to provide support, and the limiting plate can restrict the position of the sandwich panels. Rotating the rotating block causes the T-shaped locking post to rotate and engage the two sandwich panels, thereby achieving precise fine adjustment of the moving block and ensuring accurate support spacing between the sandwich panels. Attached Figure Description

[0015] Figure 1 This is a perspective view of the quick-connect locking structure for sandwich panels proposed in this utility model; Figure 2 This is a front view of the quick-connect locking structure for sandwich panels proposed in this utility model; Figure 3 This is a rear view of the quick-connect locking structure for sandwich panels proposed in this utility model; Figure 4 This is a split view of the limiting plate of the sandwich panel quick-assembly locking structure proposed in this utility model; Figure 5 This is an exploded view of the adjustment mechanism of the quick-connect locking structure for sandwich panels proposed in this utility model.

[0016] Legend: 1. Triangular block; 2. Adjustment mechanism; 201. Limiting post; 202. Moving block; 203. T-shaped block; 204. Limiting plate; 205. Rotating block; 206. T-shaped locking post; 3. Limiting plate; 4. Mounting hole; 5. U-shaped plate; 6. Rotating post; 7. Spiral post; 8. Triangular post; 9. C-shaped locking block; 10. Cross limiting block; 11. Positioning hole; 12. Flat plate; 13. Bayonet; 14. Limiting notch; 15. Locking plate; 16. Limiting notch; 17. Hollow block; 18. C-shaped groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a quick-connect locking structure for sandwich panels, comprising a triangular block 1 and a limiting plate 3. The front left and right sides of the triangular block 1 have mounting holes 4. The triangular block 1 is placed above the sandwich panel to be installed. A cross-shaped limiting block 10 is inserted into the sandwich panel by pressing, and then the triangular block 1 is fixed to the sandwich panel by screws passing through the mounting holes 4. A U-shaped plate 5 is rotatably connected to the front side of the limiting plate 3. Rotating columns 6 are rotatably connected to the left and right sides of the inner wall of the U-shaped plate 5. A spiral column 7 is provided on the inner wall of the rotating column 6. The outer wall of the spiral column 7 is threadedly connected to the inner wall of the rotating column 6. A triangular block is fixedly connected to the top of the spiral column 7. A C-shaped locking block 9 is fixedly connected to the bottom of the column 8 and the triangular block 1. The inner wall of the C-shaped locking block 9 engages with the outer wall of the triangular column 8. When the U-shaped plate 5 is rotated, the rotating column 6 will move upward together, which will then move the spiral column 7 and the triangular column 8 upward together until the triangular column 8 enters the C-shaped locking block 9. Then, the U-shaped plate 5 is rotated downward so that the triangular column 8 engages above the C-shaped locking block 9. A cross-shaped limiting block 10 is fixedly connected to the rear side of the triangular block 1. Positioning holes 11 are opened on the upper and lower sides of the front part of the limiting plate 3. An adjustment mechanism 2 is provided at the bottom of the triangular block 1. The adjustment mechanism 2 is used to adjust the support between the two sandwich plates. Specifically, place the triangular block 1 on top of the sandwich panel to be installed, and insert the cross-shaped limiting block 10 into the sandwich panel by pressing. Then, fix the triangular block 1 on the sandwich panel by screwing it through the mounting hole 4. Next, place the limiting plate 3 on top of another sandwich panel, and fix the limiting plate 3 on top of the sandwich panel by screwing it through the positioning hole 11. When in use, simply rotate the U-shaped plate 5, which will drive the rotating column 6 to move upwards, thereby driving the spiral column 7 and the triangular column 8 to move upwards together until the triangular column 8 enters the C-shaped locking block 9. Then, rotate the U-shaped plate 5 to the bottom, so that the triangular column 8 is engaged on the C-shaped locking block 9. The position of the triangular column 8 can be adjusted by rotating the spiral column 7, so that the triangular column 8 and the C-shaped locking block 9 are tightly engaged, making the two firmly connected together, so that the contact point between the latch and the hollow panel is evenly stressed.

[0019] Reference Figure 1 , Figure 4 and Figure 5The adjusting mechanism 2 includes two limiting posts 201. The top ends of the two limiting posts 201 are fixedly connected to the left and right sides of the outer wall of the triangular block 1, respectively. The bottom ends of the limiting posts 201 are fixedly connected to the top ends of the limiting plate 3. The outer walls of the two limiting posts 201 are slidably connected to moving blocks 202. The rear side of the moving blocks 202 is fixedly connected to a T-shaped block 203. Pushing the moving blocks 202 causes them to move above the limiting posts 201, so that the T-shaped block 203 moves between the two sandwich panels and provides support for them. The front and rear sides of the outer wall of the T-shaped block 203 are fixedly connected to limiting plates 204. The front side of the moving block 202 is provided with a rotating block 205. The rear side of the rotating block 205 passes through the moving block 202 and is fixedly connected to a T-shaped locking post 206. Rotating the rotating block 205 causes the T-shaped locking post 206 to rotate, thereby locking the two sandwich panels together. Specifically, when the triangular block 1 and the limiting plate 3 are fixedly installed, the moving block 202 is pushed to move above the limiting post 201, so that the T-shaped block 203 moves between the two sandwich panels and provides support for them. Then, by rotating the rotating block 205, the T-shaped locking post 206 is rotated, thereby locking the two sandwich panels together. This allows for precise fine-tuning of the position of the moving block 202 on the limiting post 201, ensuring that the support spacing between the two sandwich panels is accurately adjusted.

[0020] Reference Figure 3 and Figure 4 Multiple flat plates 12 are fixedly connected to the rear side of the limiting plate 3. The flat plates 12 play an important role in expanding the connection function. A latch 13 is provided on the right side of the flat plate 12. The latch 13 can restrict the position of the latch plate 15 and prevent it from shifting in the horizontal direction. Limiting recesses 14 are provided on the upper and lower sides of the flat plate 12. The limiting recesses 14 can restrict the latch plate 15 at a vertical angle. The outer walls of the multiple flat plates 12 are provided with latch plates 15. The latch plates 15 can increase the contact area, so that the limiting plate 3 is more stably locked in the sandwich panel. Multiple limiting recesses 16 are provided on the left side of the latch plate 15. The inner wall of the limiting recess 16 is locked with the outer wall of the flat plate 12, which can ensure that the latch plate 15 will not easily loosen after installation and facilitate the construction personnel to perform quick installation and disassembly operations. Specifically, the flat plate 12 plays an important role in expanding the connection function. The key is to lock the limiting plate 3 into the sandwich panel. The latch 13 can limit the position of the clamping plate 15 to prevent it from shifting in the horizontal direction. The limiting notch 14 can limit the clamping plate 15 in the vertical direction. The clamping plate 15 can increase the contact area, so that the limiting plate 3 can be locked into the sandwich panel more stably. The inner wall of the limiting notch 16 and the outer wall of the flat plate 12 can lock the clamping plate 15 into place after installation, which can ensure that the clamping plate 15 will not easily loosen after installation and facilitate quick installation and disassembly by construction personnel.

[0021] Reference Figure 1 , Figure 3 and Figure 4 A hollow block 17 is fixedly connected to the right side of the card plate 15, which allows the operator to easily remove the card plate 15. A C-shaped groove 18 is provided on the front side of the U-shaped plate 5, which facilitates the pulling of the U-shaped plate 5 and makes it rotate. The inner wall of the bayonet 13 engages with the outer wall of the card plate 15, so that the two can withstand a certain amount of tensile and shear force after engagement, effectively preventing the connection from separating when subjected to external force. The inner wall of the limiting recess 14 engages with the outer wall of the card plate 15, which can restrict the movement of the card plate 15 in a specific direction by tightly engaging with the outer wall of the card plate 15. The U-shaped plate 5 is treated with anti-corrosion to ensure that the U-shaped plate 5 can maintain good structural performance and mechanical strength during long-term use. The outer wall size of the rotating column 6 is the same as the inner wall size of the U-shaped plate 5, which allows the rotating column 6 to rotate smoothly and without obstruction in the inner wall of the U-shaped plate 5. Specifically, the hollow block 17 facilitates the removal of the clamping plate 15 by the operator, the C-shaped groove 18 facilitates the pulling and rotation of the U-shaped plate 5, and the inner wall of the latch 13 engages with the outer wall of the clamping plate 15, allowing them to withstand a certain amount of tensile and shear forces after engagement, effectively preventing the connection from detaching under external force. This provides a key guarantee for the stability of the entire sandwich panel quick-assembly locking structure. The inner wall of the limiting notch 14 engages with the outer wall of the clamping plate 15, and the tight engagement with the outer wall of the clamping plate 15 restricts the clamping plate. The movement of plate 15 in a specific direction firmly fixes the plate 15 in the predetermined position, preventing the random displacement of plate 15 from affecting the normal operation of the entire locking structure, further enhancing the stability and reliability of the structure, ensuring that the connection at the splicing of the sandwich panels is firm and durable. The anti-corrosion treatment of U-shaped plate 5 ensures that U-shaped plate 5 can always maintain good structural performance and mechanical strength during long-term use. The outer wall size of rotating column 6 is the same as the inner wall size of U-shaped plate 5, which allows rotating column 6 to rotate smoothly and without obstruction in the inner wall of U-shaped plate 5.

[0022] Working principle: First, place the triangular block 1 on top of the sandwich panel at the predetermined installation position, and press to embed the cross-shaped limiting block 10 into the sandwich panel. Then, use screws to pass through the mounting hole 4 to firmly fix the triangular block 1 onto the sandwich panel. Subsequently, place the limiting plate 3 on top of another sandwich panel, and use screws to pass through the positioning hole 11 to fix the limiting plate 3 onto the sandwich panel. During use, simply rotate the U-shaped plate 5 to drive the rotating column 6 to move upward, thereby pushing the spiral column 7 and the triangular column 8 to move upward synchronously until the triangular column 8 is fully inserted into the C-shaped locking block 9. Then, rotate the U-shaped plate 5 downward to lock the triangular column 8 into the C-shaped locking block 9. By rotating the spiral column 7, the position of the triangular column 8 can be adjusted to ensure that it is tightly engaged with the C-shaped locking block 9, thereby achieving a firm connection between the two parts. In this way, the contact point between the latch and the hollow panel can be evenly stressed. Furthermore, by adjusting the mechanism 2, after the triangular block 1 and the limiting plate 3 are fixedly installed, the moving block 202 is pushed to move above the limiting post 201, thereby moving the T-shaped block 203 between the two sandwich panels to provide support. Subsequently, by rotating the rotating block 205, the T-shaped locking post 206 is rotated to tightly engage the two sandwich panels, thus achieving precise fine-tuning of the position of the moving block 202 on the limiting post 201 and ensuring that the support spacing between the two sandwich panels is accurately adjusted.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-connect locking structure for sandwich panels, comprising a triangular block (1) and a limiting plate (3), characterized in that: The triangular block (1) has mounting holes (4) on both the left and right sides of its front part. The front side of the limiting plate (3) is rotatably connected to a U-shaped plate (5). The inner walls of the U-shaped plate (5) are rotatably connected to rotating columns (6) on both the left and right sides. The inner wall of the rotating column (6) is provided with a spiral column (7). The outer wall of the spiral column (7) is threadedly connected to the inner wall of the rotating column (6). The top of the spiral column (7) is fixedly connected to a triangular column (8). The bottom of the triangular block (1) is fixedly connected to a C-shaped locking block (9). The inner wall of the C-shaped locking block (9) engages with the outer wall of the triangular column (8). The rear side of the triangular block (1) is fixedly connected to a cross-shaped limiting block (10). The front upper and lower sides of the limiting plate (3) have positioning holes (11). The bottom of the triangular block (1) is provided with an adjustment mechanism (2). The adjustment mechanism (2) is used to adjust the support between the two sandwich panels.

2. The quick-connect locking structure for sandwich panels according to claim 1, characterized in that: The adjustment mechanism (2) includes two limiting posts (201). The top ends of the two limiting posts (201) are fixedly connected to the left and right sides of the outer wall of the triangular block (1), respectively. The bottom end of the limiting post (201) is fixedly connected to the top end of the limiting plate (3). The outer walls of the two limiting posts (201) are slidably connected to moving blocks (202). The rear side of the moving block (202) is fixedly connected to a T-shaped block (203). The front and rear sides of the outer wall of the T-shaped block (203) are fixedly connected to limiting plates (204). The front side of the moving block (202) is provided with a rotating block (205). The rear side of the rotating block (205) passes through the moving block (202) and is fixedly connected to a T-shaped locking post (206).

3. The quick-connect locking structure for sandwich panels according to claim 1, characterized in that: Multiple flat plates (12) are fixedly connected to the rear side of the limiting plate (3), and a slot (13) is provided on the right side of the flat plate (12).

4. The quick-connect locking structure for sandwich panels according to claim 3, characterized in that: Limiting recesses (14) are provided on the upper and lower sides of the flat plate (12), and a retaining plate (15) is provided on the outer wall of the multiple flat plates (12).

5. The quick-connect locking structure for sandwich panels according to claim 4, characterized in that: The left side of the card plate (15) is provided with a plurality of limiting notches (16), and the inner wall of the limiting notches (16) engages with the outer wall of the flat plate (12).

6. The quick-connect locking structure for sandwich panels according to claim 4, characterized in that: A hollow block (17) is fixedly connected to the right side of the card plate (15), and a C-shaped groove (18) is opened on the front side of the U-shaped plate (5).

7. The quick-connect locking structure for sandwich panels according to claim 4, characterized in that: The inner wall of the slot (13) engages with the outer wall of the card plate (15), and the inner wall of the limiting recess (14) engages with the outer wall of the card plate (15).

8. The quick-connect locking structure for sandwich panels according to claim 1, characterized in that: The U-shaped plate (5) is treated with anti-corrosion, and the outer wall size of the rotating column (6) is the same as the inner wall size of the U-shaped plate (5).

Images