Recycled concrete composite column
By designing positioning, connection, and limiting mechanisms in the recycled concrete composite column, the problem of inconvenient positioning of the reinforcing cage is solved, improving work efficiency and seismic performance, and enhancing the stability and repairability of the structure.
Patent Information
- Application Number
- CN202520362443.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-04
AI Technical Summary
The existing high-strength recycled concrete composite columns are inconvenient to position with steel reinforcement cages, which increases the workload, reduces work efficiency, and makes it difficult to guarantee seismic performance and post-earthquake repairability.
A recycled concrete composite column was designed, which includes a positioning mechanism, a connecting mechanism, and a limiting mechanism. The positioning mechanism positions the reinforcing cage, and the connecting and limiting mechanisms fix it to ensure the stability and positional accuracy of the reinforcing cage.
It improves the positioning efficiency of the rebar cage, reduces the difficulty of operation for workers, and enhances the stability of the rebar cage and the seismic performance and post-earthquake repairability of the recycled concrete composite column.
Smart Images

Figure CN223793777U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of structural engineering technology, specifically to a composite column made of recycled concrete. Background Technology
[0002] Recycled concrete composite columns refer to an environmentally friendly and sustainable building material made from recycled concrete through special processes. Compared with traditional concrete composite columns, it has higher environmental protection and reusability. Recycled concrete composite columns are composed of recycled concrete and steel, and the structure is similar to that of traditional concrete composite columns.
[0003] Patent publication number CN208792625U discloses a high-strength recycled concrete composite column, which includes a steel pipe, a first high-strength recycled concrete poured inside the steel pipe, and a second high-strength recycled concrete poured outside the steel pipe, and further includes: tie bars; the tie bars pass through the steel pipe and are divided into a first part, a second part, and a third part by the steel pipe; the second part is anchored in the first high-strength recycled concrete, and the first part and the third part are respectively anchored in the second high-strength recycled concrete.
[0004] To address the issues of large shrinkage and creep deformation and high dispersion of high-strength recycled concrete, poor synergy between the concrete inside and outside the steel tube, and difficulty in ensuring pouring quality and seismic performance, the existing technology uses high-strength recycled concrete composite columns. This effectively connects the concrete inside and outside the steel tube to form a whole, allowing the concrete outside and inside the steel tube to work synergistically and complement each other when resisting horizontal seismic forces, thus improving the seismic resistance and post-earthquake repairability of the composite column. However, this approach still presents the problem of difficulty in positioning the reinforcing cage in high-strength recycled concrete composite columns, leading to increased workload and reduced work efficiency. Utility Model Content
[0005] The purpose of this invention is to provide a recycled concrete composite column to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0007] A recycled concrete composite column includes a base plate, a positioning mechanism on the top surface of the base plate, a connecting mechanism on the top surface of the positioning mechanism, and a limiting mechanism on the top surface of the connecting mechanism.
[0008] The positioning mechanism includes a base, which is fixedly installed on the top surface of a base plate. A fixing block is fixedly installed at the corner of the top surface of the base plate, and the number of fixing blocks is four.
[0009] A further improvement of this utility model is that: a sliding rod is fixedly installed on the inner wall of the two fixed blocks on the right side, and a bidirectional screw is movably connected inside the two fixed blocks on the left side. A clamping block is threadedly connected to the outer wall of the bidirectional screw, and the end of the clamping block away from the bidirectional screw is slidably connected to the outer wall of the sliding rod.
[0010] A further improvement of this utility model is that: there are two clamping blocks, two positioning clamping plates are fixedly installed on the top surface of the two clamping blocks, a crank handle is fixedly connected to the right end of the bidirectional screw, a rotating shaft is provided on the outer wall of the crank handle, and the rotating shaft is fixedly connected to the side of the base.
[0011] A further improvement of the present invention is that the connecting mechanism includes a placement plate and a mounting block, the placement plate is fixedly installed on the top surface of the base, and two sliding grooves are provided on the top surface of the placement plate.
[0012] A further improvement of this utility model is that: the sliding groove is slidably connected to the outer wall of the clamping block, a connecting groove is fixedly installed on the top surface of the placement plate, a threaded groove is provided on the groove wall of the connecting groove, and the threaded groove is threadedly connected to the mounting block.
[0013] A further improvement of the present invention is that the limiting mechanism includes a connecting block, the connecting block is fixedly installed on the top surface of the mounting block, and a limiting block is fixedly installed on the top surface of the connecting block.
[0014] A further improvement of this utility model is that: an anti-slip pad is fixedly installed on the top surface of the limiting block, a rotating handle is fixedly installed on the top surface of the anti-slip pad, and a limiting rod is fixedly installed on the bottom surface of the limiting block, and the number of the limiting rods is multiple.
[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:
[0016] 1. This utility model provides a recycled concrete composite column. By setting a positioning mechanism consisting of a base, a fixing block, a sliding rod, a bidirectional screw, a positioning clamp, a crank handle, a rotating shaft, and clamping blocks, the steel reinforcement cage can be positioned, which is convenient for workers to use and improves work efficiency. When needed, the user only needs to hold the crank handle to rotate it, which in turn rotates the bidirectional screw fixedly connected to the crank handle. This causes the two clamping blocks threadedly connected to the bidirectional screw to move towards each other, which in turn causes the two positioning clamping plates fixedly connected to the top surface of the clamping blocks to move towards each other to position the steel reinforcement cage. At the same time, the fixing block slidably connected to the end of the two clamping blocks away from the bidirectional screw can make the clamping blocks more stable when moving towards each other.
[0017] 2. This utility model provides a recycled concrete composite column. By setting up a connecting mechanism consisting of a placement plate, a sliding groove, a connecting groove, an installation block, and a threaded groove, and a limiting mechanism consisting of a limiting rod, a connecting block, a limiting block, a rotating handle, and an anti-slip pad, the two work together to limit the position of the reinforcing cage. When needed, the user only needs to select a suitable limiting block according to the size of the reinforcing cage, and then rotate the rotating handle to rotate the connecting block fixedly connected to the limiting block, thereby rotating the installation block fixedly connected to the connecting block. This allows the installation block to be fixed to the connecting groove through the threaded groove, while multiple limiting rods fit against the inner wall of the reinforcing cage for limiting. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0020] Figure 3 This is a schematic diagram of the positioning mechanism of this utility model;
[0021] Figure 4 This is a schematic diagram of the connection mechanism of this utility model;
[0022] Figure 5 This is a schematic diagram of the limiting mechanism of this utility model.
[0023] In the diagram: 1. Base plate; 2. Positioning mechanism; 21. Base; 22. Fixing block; 23. Slide rod; 24. Two-way screw; 25. Positioning clamp; 26. Handle; 27. Rotating shaft; 28. Clamping block; 3. Connecting mechanism; 31. Placement plate; 32. Slide groove; 33. Connecting groove; 34. Mounting block; 35. Threaded groove; 4. Limiting mechanism; 41. Limiting rod; 42. Connecting block; 43. Limiting block; 44. Rotating handle; 45. Anti-slip pad. Detailed Implementation
[0024] The present invention will be further described in detail below with reference to embodiments:
[0025] Example 1
[0026] like Figure 1-5As shown, this utility model provides a recycled concrete composite column, including a base plate 1. A positioning mechanism 2 is provided on the top surface of the base plate 1, a connecting mechanism 3 is provided on the top surface of the positioning mechanism 2, and a limiting mechanism 4 is provided on the top surface of the connecting mechanism 3. The positioning mechanism 2 includes a base 21, which is fixedly installed on the top surface of the base plate 1. A fixing block 22 is fixedly installed at the corner of the top surface of the base plate 1. There are four fixing blocks 22. A sliding rod 23 is fixedly installed on the inner wall of the two fixing blocks 22 on the right side. A bidirectional screw 24 is movably connected inside the two fixing blocks 22 on the left side. A clamping block 28 is threadedly connected to the outer wall of the bidirectional screw 24. The end of the clamping block 28 away from the bidirectional screw 24 is slidably connected to the outer wall of the sliding rod 23. There are two clamping blocks 28. Two positioning clamping plates 25 are fixedly installed on the top surface of the two clamping blocks 28. A crank handle 26 is fixedly connected to the right end of the bidirectional screw 24. A rotating shaft 27 is provided on the outer wall of the crank handle 26. The rotating shaft 27 is fixedly connected to the side of the base 21.
[0027] In this embodiment, a positioning mechanism 2 consisting of a base 21, a fixing block 22, a sliding rod 23, a bidirectional screw 24, a positioning clamping plate 25, a crank handle 26, a rotating shaft 27, and clamping blocks 28 can be used to position the rebar cage, making it easier for workers to use and improving work efficiency. When needed, the user only needs to hold the crank handle 26 to rotate it, which in turn rotates the bidirectional screw 24 fixedly connected to the crank handle 26. This causes the two clamping blocks 28 threadedly connected to the bidirectional screw 24 to move towards each other, which in turn causes the two positioning clamping plates 25 fixedly connected to the top surface of the clamping blocks 28 to move towards each other to position the rebar cage. At the same time, the fixing block 22 slidably connected to the end of the two clamping blocks 28 away from the bidirectional screw 24 makes the clamping blocks 28 more stable when moving towards each other.
[0028] Example 2
[0029] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the connecting mechanism 3 includes a placement plate 31 and an mounting block 34. The placement plate 31 is fixedly installed on the top surface of the base 21. Two sliding grooves 32 are opened on the top surface of the placement plate 31. The sliding grooves 32 are slidably connected to the outer wall of the clamping block 28. A connecting groove 33 is fixedly installed on the top surface of the placement plate 31. A threaded groove 35 is opened on the groove wall of the connecting groove 33. The threaded groove 35 is threadedly connected to the mounting block 34. The limiting mechanism 4 includes a connecting block 42. The connecting block 42 is fixedly installed on the top surface of the mounting block 34. A limiting block 43 is fixedly installed on the top surface of the connecting block 42. An anti-slip pad 45 is fixedly installed on the top surface of the limiting block 43. A rotating handle 44 is fixedly installed on the top surface of the anti-slip pad 45. A limiting rod 41 is fixedly installed on the bottom surface of the limiting block 43. The number of limiting rods 41 is multiple.
[0030] In this embodiment, by setting up a connecting mechanism 3 consisting of a placement plate 31, a sliding groove 32, a connecting groove 33, an mounting block 34, and a threaded groove 35, and a limiting mechanism 4 consisting of a limiting rod 41, a connecting block 42, a limiting block 43, a rotating handle 44, and an anti-slip pad 45, the two can cooperate to limit the position of the rebar cage. When needed, the user only needs to select a suitable limiting block 43 according to the size of the rebar cage, and then rotate the rotating handle 44 to rotate the connecting block 42 which is fixedly connected to the limiting block 43, thereby rotating the mounting block 34 which is fixedly connected to the connecting block 42. This allows the mounting block 34 to be fixed to the connecting groove 33 through the threaded groove 35, while the multiple limiting rods 41 fit against the inner wall of the rebar cage for limiting.
[0031] The working principle of this recycled concrete composite column will be explained in detail below.
[0032] like Figure 1-5 As shown, in use, the user first selects a suitable limiting block 43 according to the size of the rebar cage, and then rotates the handle 44 to rotate the connecting block 42 fixedly connected to the limiting block 43, which in turn rotates the mounting block 34 fixedly connected to the connecting block 42. This allows the mounting block 34 to be fixed to the connecting groove 33 through the threaded groove 35. At the same time, multiple limiting rods 41 are in contact with the inner wall of the rebar cage for limiting. Then, the user holds the crank handle 26 and rotates it, which in turn rotates the bidirectional screw 24 fixedly connected to the crank handle 26. This causes the two clamping blocks 28 threadedly connected to the bidirectional screw 24 to move towards each other, which in turn causes the two positioning clamping plates 25 fixedly connected to the top surface of the clamping blocks 28 to move towards each other to position the rebar cage. At the same time, the fixing block 22 slidably connected to the end of the two clamping blocks 28 away from the bidirectional screw 24 makes the clamping blocks 28 more stable when moving towards each other.
[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A composite column of recycled concrete, comprising a base plate (1), characterized in that: The top surface of the base plate (1) is provided with a positioning mechanism (2), the top surface of the positioning mechanism (2) is provided with a connecting mechanism (3), and the top surface of the connecting mechanism (3) is provided with a limiting mechanism (4). The positioning mechanism (2) includes a base (21), which is fixedly installed on the top surface of the base plate (1). A fixing block (22) is fixedly installed at the corner of the top surface of the base plate (21), and the number of fixing blocks (22) is four.
2. A recycled concrete composite column according to claim 1, characterized in that: The inner walls of the two fixed blocks (22) on the right are fixedly installed with slide rods (23), and the two fixed blocks (22) on the left are movably connected with bidirectional screws (24). The outer wall of the bidirectional screws (24) is threadedly connected with clamping blocks (28), and the end of the clamping block (28) away from the bidirectional screws (24) is slidably connected to the outer wall of the slide rods (23).
3. A recycled concrete composite column according to claim 2, characterized in that: There are two clamping blocks (28). Two positioning clamping plates (25) are fixedly installed on the top surface of the two clamping blocks (28). A crank handle (26) is fixedly connected to the right end of the bidirectional screw (24). A rotating shaft (27) is provided on the outer wall of the crank handle (26). The rotating shaft (27) is fixedly connected to the side of the base (21).
4. A recycled concrete composite column according to claim 3, characterized in that: The connecting mechanism (3) includes a placement plate (31) and a mounting block (34). The placement plate (31) is fixedly installed on the top surface of the base (21), and two sliding grooves (32) are provided on the top surface of the placement plate (31).
5. A recycled concrete composite column according to claim 4, characterized in that: The slide groove (32) is slidably connected to the outer wall of the clamping block (28), and the top surface of the placement plate (31) is fixedly installed with a connecting groove (33). The groove wall of the connecting groove (33) is provided with a threaded groove (35), and the threaded groove (35) is threadedly connected to the mounting block (34).
6. A recycled concrete composite column according to claim 5, characterized in that: The limiting mechanism (4) includes a connecting block (42), which is fixedly installed on the top surface of the mounting block (34), and a limiting block (43) is fixedly installed on the top surface of the connecting block (42).
7. A recycled concrete composite column according to claim 6, characterized in that: The top surface of the limiting block (43) is fixedly equipped with an anti-slip pad (45), the top surface of the anti-slip pad (45) is fixedly equipped with a rotating handle (44), and the bottom surface of the limiting block (43) is fixedly equipped with a limiting rod (41). There are multiple limiting rods (41).
Citation Information
Patent Citations
Recycled concrete coincide post excels in
CN208792625U