Building material stacking support for construction site

Abstract

The building material stacking support for the construction site comprises a longitudinal frame, an inserting sleeve is arranged on one side of the longitudinal frame, an inserting rod is arranged in the inserting sleeve, a rotating sleeve is rotatably installed on the outer side of the inserting sleeve, a matching block is fixedly arranged on one side of the rotating sleeve, a matching spring is connected to one side of the matching block, and a connecting block is fixedly arranged on the outer side of the inserting sleeve. One side of the matching block is fixedly connected with a matching rod, a matching hole is formed in the connecting block, one end of the matching rod penetrates into the matching hole in a sliding mode, a rotating groove is formed in the side wall of the rotating sleeve, a pushing block is arranged at the top end of the inserting rod, an inserting groove is formed between the pushing block and the inserting rod, a movable groove is formed in the outer side of the inserting sleeve, and a sliding plate is arranged in the movable groove. According to the storage rack convenient to disassemble and assemble, the storage rack can be conveniently disassembled and assembled without tools, the installation height of the storage rack can be flexibly adjusted, and the use flexibility and adaptability of the whole equipment are improved.

Description

Technical Field

[0001] This utility model relates to the field of building material stacking support technology, and more specifically, it relates to a building material stacking support for construction sites. Background Technology

[0002] With the rapid development of the construction industry, the demand for building material stacking supports at construction sites is increasing. As these supports are used for stacking various pipes, the existing technical solutions for building material stacking supports at construction sites have many technical defects, which seriously restrict their application efficiency under complex working conditions.

[0003] First, existing pipe stacking supports mostly adopt a fixed structure design. Once manufactured, the height of each layer of the support cannot be adjusted, lacking the necessary adaptability. This rigid structural design makes it impossible for the support to flexibly adapt and dynamically adjust the height of the upper and lower layers according to the stacking requirements of different pipe specifications, resulting in low space utilization. In actual construction scenarios, due to the diversity of pipe types and specifications, fixed-height supports often present a contradiction of wasted upper space or insufficient lower space, which not only reduces storage efficiency but may also cause safety hazards due to improper stacking.

[0004] Secondly, although some improved stacking supports have emerged in the market, superficially achieving flexible adjustment of the placement rack height, these solutions still have significant technical shortcomings. Since the placement racks are usually installed directly on the outside of the longitudinal frame, the disassembly and assembly process of the existing placement racks is extremely cumbersome and not user-friendly. Specifically, the adjustment process usually requires the assistance of various professional tools such as wrenches and screwdrivers, which not only increases the complexity of the operation but also significantly prolongs the adjustment time. In engineering environments with adjustment requirements, this inefficient disassembly and assembly method seriously affects work efficiency. More importantly, in special working conditions where tools are lacking or operating space is limited, technicians may not even be able to complete the necessary adjustment operations, causing the supports to be unable to adapt to the dynamic changes in the construction site, thus failing to achieve convenient adjustment of the placement rack installation height, ultimately affecting the construction progress and resource allocation efficiency. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a building material stacking support for construction sites to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a building material stacking support for construction sites, comprising a longitudinal frame, a plug-in sleeve on one side of the longitudinal frame, a plug-in rod detachably mounted in the plug-in sleeve, a rotating sleeve rotatably mounted on the outer side of the plug-in sleeve, a mating block fixedly mounted on one side of the rotating sleeve, a mating spring connected to one side of the mating block, a connecting block fixedly mounted on the outer side of the plug-in sleeve, the other end of the mating spring connected to the connecting block, a mating rod fixedly connected to one side of the mating block, a mating hole opened in the connecting block, one end of the mating rod slidingly inserted into the mating hole, a rotating groove opened on the side wall of the rotating sleeve, a pushing block opened at the top of the plug-in rod, a plug-in groove opened between the pushing block and the plug-in rod, a movable groove opened on the outer side of the plug-in sleeve, a sliding plate movably mounted in the movable groove, a plug-in block connected to one side of the sliding plate, one end of the plug-in block being inserted into the plug-in groove, a movable spring movably mounted in the movable groove, the two ends of the movable spring being connected to the sliding plate and the inner wall of the movable groove respectively.

[0009] The present invention is further configured such that a transverse frame is detachably provided at the bottom of the longitudinal frame, and a connecting rod is provided on one side of the longitudinal frame. The two ends of the connecting rod are detachably connected to two adjacent longitudinal frames respectively. This detachable and modular structural design gives the support system a strong flexibility and scalability. Users can select an appropriate number of transverse and longitudinal frames to assemble according to the actual requirements of the length and quantity of stacked pipes. At the same time, the double-end connection design of the connecting rod ensures that a stable structural support is formed between adjacent longitudinal frames, which greatly enhances the load-bearing capacity and structural stability of the overall frame.

[0010] This utility model is further configured such that a placement rack is detachably provided on both sides of the longitudinal frame, and a limiting rod is detachably provided at one end of the placement rack. Both the longitudinal frame and the placement rack are provided with mounting holes, and multiple mounting holes are provided on the longitudinal frame. This multi-point mounting hole design provides a wide range of options for adjusting the height of the placement rack. Users can accurately select the installation position according to the stacking requirements of pipes of different specifications, so as to achieve a reasonable allocation of the placement space. At the same time, the symmetrical installation layout on both sides of the placement rack increases the support area and load-bearing capacity, while the detachable design of the limiting rod not only effectively prevents the risk of round pipes rolling off, but also improves the stacking safety.

[0011] The present invention is further configured such that a movable block is fixedly provided on the inner side of the rotating sleeve, and a movable groove is provided on the outer side of the plug sleeve. The movable block is movably positioned in the movable groove. This embedded guide structure provides precise track limit for the rotation of the rotating sleeve, ensuring that the rotating sleeve rotates only within a limited angle within the preset movable groove range. This avoids interference and damage to the internal mechanism that may be caused by disordered rotation in any direction, and allows the operator to clearly perceive the starting and ending points of the rotation position through touch, thereby improving the accuracy and controllability of the operation.

[0012] The present invention is further provided with multiple anti-slip strips fixed on the outer side of the rotating sleeve. This ergonomic design significantly improves the friction coefficient of the rotating sleeve surface, allowing the operator to firmly grip the rotating sleeve and apply precise rotational force even in common construction site conditions such as wet gloves or mud and sand, preventing operational errors caused by finger slippage. At the same time, the even distribution of multiple anti-slip strips ensures a consistent operating experience from any angle, eliminating the need to find a specific grip position.

[0013] The present invention is further configured such that the top of the push block adopts a chamfered structure design. This inclined transition structure allows the push block to generate a component force along the inclined plane during the insertion process, automatically pushing the insertion block to slide outward, thus realizing a self-guiding function without additional tools or auxiliary operations.

[0014] The present invention is further configured such that one end of the plug-in block has a hemispherical structure design, the plug-in groove is adapted to one end of the plug-in block, and the inner wall edge of the plug-in groove adopts a rounded corner structure design. This carefully designed curved surface mating structure allows the plug-in block to slide smoothly along a smooth curved surface trajectory during the process of entering and exiting the plug-in groove, which significantly reduces the frictional resistance and impact stress during the insertion and removal process, and realizes a smooth transition and jam-free connection between the two parts. At the same time, the combination design of hemispherical and rounded corners also provides a self-centering function, which can automatically guide it to the correct position even if it is not perfectly aligned.

[0015] The present invention is further configured such that the outer wall of the sliding plate is in contact with the inner wall of the rotating sleeve.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a building material stacking support for construction sites, which has the following beneficial effects:

[0018] 1. By creating multiple mounting holes on the longitudinal frame and multiple placement racks, the design overcomes the lack of adaptability caused by the fixed structure design in existing technologies. The multiple mounting holes on the longitudinal frame mate with the mounting holes on the placement racks, and the use of detachable connection methods with plug-in rods and plug-in sleeves allows for flexible adjustment of the placement rack's installation height. Users can dynamically adapt the rack height according to the stacking requirements of different pipe specifications, effectively solving the contradiction of wasted upper space or insufficient lower space caused by fixed-height racks, significantly improving storage space utilization efficiency. Simultaneously, the design of the limit rod and placement racks prevents the risk of pipes rolling during stacking, eliminating safety hazards caused by improper stacking, and greatly improving the safety and standardization of material management at the construction site. Furthermore, the assembly of the longitudinal frame, transverse frame, and connecting rods allows for customized assembly to suit the pipe length.

[0019] 2. The design of components such as the plug-in sleeve, plug-in rod, and plug-in block solves the problem of cumbersome disassembly and assembly of the placement rack in existing technologies. It adopts an innovative tool-free quick disassembly and assembly mechanism. Through the linkage design of the rotating sleeve, mating block, mating rod, and mating spring, combined with the precise cooperation of the sliding plate, plug-in block, and movable spring, the placement rack can be easily disassembled and assembled. Users only need to rotate the rotating sleeve with anti-slip strips to quickly separate and reconnect the plug-in rod and plug-in sleeve through the interlocking reaction of the internal structure. No professional tools such as wrenches and screwdrivers are needed. The entire disassembly and assembly process is simple, intuitive, efficient, and reliable. Even in special working conditions where tools are scarce or operating space is limited, technicians can easily adjust the height of the placement rack. It effectively adapts to the dynamic changes in the construction site, significantly improves work efficiency and resource allocation flexibility, and provides a more convenient and practical pipe stacking solution for building construction. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a building material stacking support for construction sites according to the present invention;

[0021] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the plug-in sleeve, plug-in rod, and rotating sleeve in this utility model;

[0023] Figure 4 This is a cross-sectional view of the insert sleeve, insert rod, and rotating sleeve in this utility model.

[0024] Figure 5 This is a schematic diagram of the dispersed structure of the plug sleeve, plug block and rotating sleeve in this utility model.

[0025] In the diagram: 1. Longitudinal frame; 2. Insert sleeve; 3. Insert rod; 4. Rotating sleeve; 5. Mating block; 6. Mating spring; 7. Connecting block; 8. Mating rod; 9. Mating hole; 10. Rotating groove; 11. Push block; 12. Insert groove; 13. Movable groove; 14. Sliding plate; 15. Insert block; 16. Movable spring; 17. Transverse frame; 18. Connecting rod; 19. Placement frame; 20. Limiting rod; 21. Mounting hole; 22. Moving block; 23. Moving groove; 24. Anti-slip strip. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5 A building material stacking support for construction sites includes a longitudinal frame 1. A plug-in sleeve 2 is provided on one side of the longitudinal frame 1. A plug-in rod 3 is detachably installed in the plug-in sleeve 2. A rotating sleeve 4 is rotatably installed on the outside of the plug-in sleeve 2. A mating block 5 is fixedly provided on one side of the rotating sleeve 4. A mating spring 6 is connected to one side of the mating block 5. A connecting block 7 is fixedly provided on the outside of the plug-in sleeve 2. The other end of the mating spring 6 is connected to the connecting block 7. A mating rod 8 is fixedly connected to one side of the mating block 5. A mating hole 9 is opened in the connecting block 7. One end of the mating rod 8 slides. The rotating sleeve 4 has a rotating groove 10 on its side wall, which is inserted into the mating hole 9. The top of the plug rod 3 has a push block 11. A plug groove 12 is formed between the push block 11 and the plug rod 3. The outer side of the plug sleeve 2 has a movable groove 13. A sliding plate 14 is movably provided in the movable groove 13. A plug block 15 is connected to one side of the sliding plate 14. One end of the plug block 15 is inserted into the plug groove 12. A movable spring 16 is movably provided in the movable groove 13. The two ends of the movable spring 16 are connected to the sliding plate 14 and the inner wall of the movable groove 13, respectively.

[0030] The bottom of the longitudinal frame 1 is detachably provided with a transverse frame 17, and a connecting rod 18 is provided on one side of the longitudinal frame 1. The two ends of the connecting rod 18 are detachably connected to two adjacent longitudinal frames 1.

[0031] The longitudinal frame 1 is detachably provided with a placement rack 19 on both sides. One end of the placement rack 19 is detachably provided with a limiting rod 20. Both the longitudinal frame 1 and the placement rack 19 are provided with mounting holes 21, and multiple mounting holes 21 are provided on the longitudinal frame 1.

[0032] In this embodiment, when the equipment is needed, firstly, select the corresponding number of horizontal frames 17 and vertical frames 1 according to the required stacking length of pipes. Then, detachably connect the bottom end of the vertical frame 1 to the horizontal frame 17. Then, detachably connect both ends of the connecting rod 18 to the two vertical frames 1 respectively. Then, connect multiple vertical frames 1 together through the connecting rod 18 to form a support part. Then, detachably install the limiting rod 20 above one end of the placement frame 19 through the thread. Then, install the placement frame 19 on both sides of the vertical frame 1 in sequence, so that the height of the placement frame 19 on each vertical frame 1 is the same. Then, the pipes can be placed and stacked on the placement frame 19, so that the pipes are between the limiting rod 20 and the vertical frame 1. The limiting rod 20 can prevent the pipes from rolling off.

[0033] Please see Figures 3-5 As a further implementation of the overall equipment: a movable block 22 is fixedly provided on the inner side of the rotating sleeve 4, and a movable groove 23 is provided on the outer side of the plug sleeve 2, with the movable block 22 moving in the movable groove 23.

[0034] Multiple anti-slip strips 24 are fixedly provided on the outer side of the rotating sleeve 4.

[0035] The top of the push block 11 adopts a chamfered structure design.

[0036] One end of the plug block 15 has a hemispherical structure design, the plug groove 12 is adapted to one end of the plug block 15, and the inner edge of the plug groove 12 adopts a rounded corner structure design.

[0037] The outer wall of the sliding plate 14 is in contact with the inner wall of the rotating sleeve 4.

[0038] More specifically, when the height of the placement rack 19 needs to be adjusted, the placement rack 19 must first be removed. First, rotate the rotating sleeve 4 clockwise, causing the inner moving block 22 to rotate along the moving groove 23. The rotating sleeve 4 will also cause the rotating groove 10 on the side wall to rotate. At the same time, the rotating sleeve 4 will cause the mating block 5 fixed on one side to rotate clockwise. Then, the mating block 5 will cause the mating rod 8 on one side to rotate clockwise along the mating hole 9. The mating block 5 will cooperate with the connecting block 7 to compress the mating spring 6 sleeved on the outside of the mating rod 8. When the mating spring 6 is compressed to its limit, the moving block 22 rotates to the other end of the moving groove 23, and the rotating groove 10 rotates to the position corresponding to the sliding plate 14. At this time, the inner wall of the rotating sleeve 4 no longer limits the outer wall of the sliding plate 14. Then, the insertion rod... 3 and the plug sleeve 2 are pulled to both sides respectively. Then, the inner wall of the plug groove 12 presses against the hemispherical structure at one end of the plug block 15, causing one end of the plug block 15 to gradually slide out of the plug groove 12. This causes the plug block 15 to drive the sliding plate 14 to slide outward, allowing the sliding plate 14 to slide out of the movable groove 13 and pass through the rotating groove 10. At the same time, the sliding plate 14 will drive multiple movable springs 16 to stretch outward, thus completely removing the plug sleeve 2 and the plug rod 3. At this time, one end of the plug block 15 is no longer limited. Then, the movable springs 16 pull the sliding plate 14 to slide inward and reset, causing the movable springs 16 to drive the sliding plate 14 back into the movable groove 13. The sliding plate 14 will also drive one side of the plug block 15 to slide inward and reset, thus allowing the plug to be completely removed. The placement rack 19 is removed from one side of the longitudinal frame 1, and then the placement rack 19 is moved to a suitable height so that the mounting holes 21 on the placement rack 19 are concentrically aligned with the corresponding mounting holes 21 on the placement rack 19. Then, the insertion rod 3 passes through the pre-reserved mounting holes 21 on the placement rack 19 and the longitudinal frame 1 from one side, and then the insertion sleeve 2 is fitted onto the outside of the insertion rod 3 from the other side. During the insertion process, the chamfer design on one side of the push block 11 will push the hemispherical structure at one end of the insertion block 15 outward, so that the insertion block 15 will drive the sliding plate 14 to slide outward again, and the sliding plate 14 will drive the movable spring 16 to stretch outward again, so that the sliding plate 14 will slide out of the movable groove 13 and pass through the rotating groove 10 again. When the insertion sleeve 2 is fully fitted onto the outside of the insertion rod 3... At this time, the position of the plug block 15 corresponds to the position of the plug slot 12. Then, the movable spring 16 pulls the sliding plate 14 inward to reset, so that both the movable spring 16 and the sliding plate 14 are retracted into the movable groove 13. The sliding plate 14 also drives one side of the plug block 15 to slide inward to reset, so that one end of the plug block 15 is re-engaged into the plug slot 12. Then, the rotating sleeve 4 is released, and the cooperating spring 6 pushes the cooperating block 5 to rotate in the opposite direction to reset. Then, the cooperating block 5 drives one side of the cooperating rod 8 to rotate and reset along the cooperating hole 9. The cooperating block 5 will also drive the rotating sleeve 4 to rotate and reset in the opposite direction, so that the rotating sleeve 4 drives the inner moving block 22 to rotate and reset along the moving groove 23 in the opposite direction. The rotating sleeve 4 will also drive the rotating groove 10 to rotate and reset. When the cooperating spring 6 is fully reset,The movable block 22 rotates and resets to its original position at one end of the movable slot 23, and the rotating sleeve 4 drives the rotating slot 10 to rotate and reset to a position that does not correspond to the sliding plate 14. This limits the inner wall of the rotating sleeve 4 to the outer wall of the sliding plate 14, preventing the sliding plate 14 and the plug-in block 15 from sliding outward. This facilitates the fixing of the plug-in sleeve 2 and the plug-in rod 3, thereby enabling convenient assembly and disassembly of the placement rack 19. This allows for convenient adjustment of the height of the placement rack 19. Then, the same steps are applied to other corresponding placement racks 19 for assembly and disassembly adjustment, achieving a uniform height adjustment.

[0039] In summary, when using or operating the overall equipment: When the equipment needs to be used, first select the corresponding number of horizontal frames 17 and vertical frames 1 according to the required stacking length of pipes. Then, detachably connect the bottom end of the vertical frame 1 to the horizontal frame 17. Then, detachably connect both ends of the connecting rod 18 to the two vertical frames 1 respectively. Then, connect multiple vertical frames 1 together through the connecting rod 18 to form a support part. Then, detachably install the limiting rod 20 above one end of the placement frame 19 through the thread. Then, install the placement frame 19 on both sides of the vertical frame 1 in sequence, so that the height of the placement frame 19 on each vertical frame 1 is the same. Then, the pipes can be placed and stacked on the placement frame 19, so that the pipes are between the limiting rod 20 and the vertical frame 1. The limiting rod 20 can prevent the pipes from rolling off.

[0040] When the height of the placement rack 19 needs to be adjusted, the placement rack 19 must first be removed. First, rotate the rotating sleeve 4 clockwise, causing the inner moving block 22 to rotate along the moving groove 23. The rotating sleeve 4 will also cause the rotating groove 10 on the side wall to rotate. At the same time, the rotating sleeve 4 will cause the mating block 5 fixed on one side to rotate clockwise. Then, the mating block 5 will cause the mating rod 8 on one side to rotate clockwise along the mating hole 9. The mating block 5 will cooperate with the connecting block 7 to compress the mating spring 6 sleeved on the outside of the mating rod 8. When the mating spring 6 is compressed to its limit, the moving block 22 rotates to the other end of the moving groove 23, and the rotating groove 10 rotates to the position corresponding to the sliding plate 14. At this time, the inner wall of the rotating sleeve 4 no longer limits the outer wall of the sliding plate 14. Then, the insertion rod 3 and the insertion... The sleeve 2 is pulled to both sides, and then the inner wall of the insertion groove 12 presses against the hemispherical structure at one end of the insertion block 15, causing one end of the insertion block 15 to gradually slide out of the insertion groove 12. This causes the insertion block 15 to drive the sliding plate 14 to slide outward, allowing the sliding plate 14 to slide out of the movable groove 13 and pass through the rotating groove 10. At the same time, the sliding plate 14 will drive multiple movable springs 16 to stretch outward, thus completely removing the insertion sleeve 2 and the insertion rod 3. At this point, one end of the insertion block 15 is no longer limited. Then, the movable springs 16 pull the sliding plate 14 to slide inward and reset, causing the movable springs 16 to drive the sliding plate 14 back into the movable groove 13. The sliding plate 14 will also drive one side of the insertion block 15 to slide inward and reset. Then, the placement can be... The frame 19 is removed from one side of the longitudinal frame 1, and then the placement frame 19 is moved to a suitable height so that the mounting holes 21 on the placement frame 19 are concentrically aligned with the corresponding mounting holes 21 on the placement frame 19. Then, the insertion rod 3 passes through the pre-reserved mounting holes 21 on the placement frame 19 and the longitudinal frame 1 from one side. Then, the insertion sleeve 2 is fitted onto the outside of the insertion rod 3 from the other side. During the insertion process, the chamfer design on one side of the push block 11 will push the hemispherical structure at one end of the insertion block 15 outward, so that the insertion block 15 will drive the sliding plate 14 to slide outward again, and the sliding plate 14 will drive the movable spring 16 to stretch outward again, so that the sliding plate 14 will slide out of the movable groove 13 and pass through the rotating groove 10 again. When the insertion sleeve 2 is fully fitted onto the outside of the insertion rod 3, The position of the plug block 15 corresponds to the position of the plug slot 12. Then, the movable spring 16 pulls the sliding plate 14 inward to reset, so that both the movable spring 16 and the sliding plate 14 are retracted into the movable groove 13. The sliding plate 14 also drives one side of the plug block 15 to slide inward to reset, so that one end of the plug block 15 is re-engaged into the plug slot 12. Then, the rotating sleeve 4 is released, and the cooperating spring 6 pushes the cooperating block 5 to rotate in the opposite direction to reset. Then, the cooperating block 5 drives one side of the cooperating rod 8 to rotate and reset along the cooperating hole 9. The cooperating block 5 will also drive the rotating sleeve 4 to rotate and reset in the opposite direction, so that the rotating sleeve 4 drives the inner moving block 22 to rotate and reset along the moving groove 23 in the opposite direction. The rotating sleeve 4 will also drive the rotating groove 10 to rotate and reset. When the cooperating spring 6 is fully reset,The movable block 22 rotates and resets to its original position at one end of the movable slot 23, and the rotating sleeve 4 drives the rotating slot 10 to rotate and reset to a position that does not correspond to the sliding plate 14. This limits the inner wall of the rotating sleeve 4 to the outer wall of the sliding plate 14, preventing the sliding plate 14 and the plug-in block 15 from sliding outward. This facilitates the fixing of the plug-in sleeve 2 and the plug-in rod 3, thereby enabling convenient assembly and disassembly of the placement rack 19. This allows for convenient adjustment of the height of the placement rack 19. Then, the same steps are applied to other corresponding placement racks 19 for assembly and disassembly adjustment, achieving a uniform height adjustment.

[0041] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A building material stacking support for construction sites, comprising a longitudinal frame (1), characterized in that: A plug-in sleeve (2) is provided on one side of the longitudinal frame (1). A plug-in rod (3) is provided in the plug-in sleeve (2). A rotating sleeve (4) is rotatably installed on the outside of the plug-in sleeve (2). A mating block (5) is fixedly provided on one side of the rotating sleeve (4). A mating spring (6) is connected to one side of the mating block (5). A connecting block (7) is fixedly provided on the outside of the plug-in sleeve (2). The other end of the mating spring (6) is connected to the connecting block (7). A mating rod (8) is fixedly connected to one side of the mating block (5). A mating hole (9) is opened in the connecting block (7). One end of the mating rod (8) slides. Inserted into the mating hole (9), the rotating sleeve (4) has a rotating groove (10) on its side wall, the plug rod (3) has a push block (11) at its top end, the push block (11) and the plug rod (3) have a plug groove (12), the plug sleeve (2) has a movable groove (13) on its outer side, the movable groove (13) has a sliding plate (14) in it, the sliding plate (14) has a plug block (15) connected to one side, the movable groove (13) has a movable spring (16) in it, the movable spring (16) is connected to the sliding plate (14) and the inner wall of the movable groove (13).

2. The construction material stacking support for construction sites according to claim 1, characterized in that: The bottom end of the longitudinal frame (1) is detachably provided with a transverse frame (17), and a connecting rod (18) is provided on one side of the longitudinal frame (1). The two ends of the connecting rod (18) are detachably connected to two adjacent longitudinal frames (1).

3. A building material stacking support for construction sites according to claim 2, characterized in that: The longitudinal frame (1) is detachably provided with a placement rack (19) on both sides. A limiting rod (20) is detachably provided at one end of the placement rack (19). Mounting holes (21) are provided on both the longitudinal frame (1) and the placement rack (19), and multiple mounting holes (21) are provided on the longitudinal frame (1).

4. A construction material stacking support for construction sites according to any one of claims 1-3, characterized in that: The rotating sleeve (4) is fixedly provided with a moving block (22) on the inner side, and the plug sleeve (2) is provided with a moving groove (23) on the outer side, and the moving block (22) is movably located in the moving groove (23).

5. A building material stacking support for construction sites according to claim 1, characterized in that: Multiple anti-slip strips (24) are fixedly provided on the outer side of the rotating sleeve (4).

6. A building material stacking support for construction sites according to claim 4, characterized in that: The top of the push block (11) adopts a chamfered structure design.

7. A building material stacking support for construction sites according to claim 6, characterized in that: One end of the plug block (15) is designed as a hemispherical structure, the plug groove (12) is adapted to one end of the plug block (15), and the inner edge of the plug groove (12) is designed as a rounded corner structure.

8. A building material stacking support for construction sites according to claim 7, characterized in that: The outer wall of the sliding plate (14) is in contact with the inner wall of the rotating sleeve (4).

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