High-strength shear wall steel reinforcement framework limiting and anti-cracking fixture

By designing a high-strength shear wall rebar cage limiting and crack-preventing clamp with rebar clamps and connectors, the problem of inconvenient adjustment of existing clamps was solved, enabling flexible connection of rebars with different spacings and angles, and improving construction efficiency.

CN224379266UActive Publication Date: 2026-06-19中电建路桥集团有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
中电建路桥集团有限公司
Filing Date
2025-05-26
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The existing rebar limit clamps are not easy to adjust, resulting in poor flexibility during use and affecting construction efficiency.

Method used

A high-strength shear wall rebar cage limiting and crack-preventing clamp was designed, which includes rebar clamps and connectors. The length and angle of the connectors can be adjusted by fastening bolts and driving components to limit the rebars at different spacings and angles.

🎯Benefits of technology

It improves the flexibility and construction efficiency of rebar connections, adapts to the needs of rebars with different spacing and angles, and enhances the flexibility and efficiency of construction.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224379266U_ABST
    Figure CN224379266U_ABST
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Abstract

This utility model discloses a high-strength shear wall rebar cage limiting and crack-preventing clamp, belonging to the field of rebar clamp technology. Its key technical features include two rebar clamping blocks and a connector. The two rebar clamping blocks are respectively disposed at both ends of the connector. Each rebar clamping block includes two oppositely distributed clamping blocks, with a through hole for the rebar to pass through between the two clamping blocks. The two clamping blocks are fixedly installed by fastening bolts. The connector includes a sleeve and connecting pipes slidably connected to both ends of the sleeve. Two vertically distributed connecting holes are opened inside the connecting block. A bidirectional screw is rotatably installed inside the sleeve, with both ends of the bidirectional screw extending into the two connecting pipes. A driving component for driving the bidirectional screw to rotate is provided in the middle of the sleeve. The technical advantage is that by setting the rebar clamping blocks and connector, the length of the connector can be flexibly adjusted, facilitating the limiting of rebars with different spacings and improving construction efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of rebar clamp technology, specifically a high-strength shear wall rebar cage limiting and crack-preventing clamp. Background Technology

[0002] In the construction of shear walls in building construction, in order to increase the stiffness, strength and collapse resistance of the structure, reinforced concrete shear walls are cast in place or precast in certain parts. The structural strength after the concrete is formed is improved by adding a steel reinforcement cage in the concrete. In order to ensure the stability of the steel reinforcement cage, limit clamps are usually installed between the steel bars to limit the connection of the steel bars.

[0003] Reinforcing steel cages typically have several horizontal and vertical bars interspersed. The spacing of the reinforcing bars varies for different shear walls. Most existing reinforcing bar limit clamps are not easy to adjust, resulting in poor flexibility during use and affecting construction efficiency.

[0004] Therefore, we propose a high-strength shear wall steel reinforcement cage limiting and crack-preventing clamp. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a high-strength shear wall steel reinforcement cage limiting and crack-preventing clamp, which solves the problem that most existing steel reinforcement limiting clamps are inconvenient to adjust, resulting in poor flexibility during use and affecting construction efficiency.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a high-strength shear wall rebar cage limiting and crack-preventing clamp, comprising two rebar clamping blocks and a connector. The two rebar clamping blocks are respectively disposed at both ends of the connector. Each rebar clamping block includes two oppositely distributed clamping blocks. A through hole for passing through the rebar is provided between the two clamping blocks. A fastening bolt is threaded to one side of one of the clamping blocks. The two clamping blocks are fixedly installed by the fastening bolt. A connecting sleeve is fixedly connected to one side of the other clamping block. A connecting bolt passes through the interior of the connecting sleeve.

[0009] The connector includes a sleeve and connecting tubes slidably connected to both ends of the sleeve. A connecting block is fixedly connected to one end of the connecting tube. Two vertically distributed connecting holes are opened inside the connecting block. A bidirectional screw is rotatably installed inside the sleeve. The two ends of the bidirectional screw extend into the two connecting tubes respectively. A nut is embedded in the end of the connecting tube away from the connecting block. The nut is threadedly connected to the bidirectional screw. A driving component for driving the bidirectional screw to rotate is provided in the middle of the sleeve.

[0010] Preferably, the connecting bolt is adapted to the connecting hole.

[0011] Preferably, a support plate is fixedly connected inside the sleeve, and the bidirectional screw is rotatably mounted on the support plate.

[0012] Preferably, the driving component includes a worm gear rotatably mounted inside a sleeve, a nut fixedly connected to one end of the worm gear, and a worm wheel fixedly sleeved in the middle of the bidirectional screw and meshing with the worm gear.

[0013] Preferably, the surface of the sleeve is provided with a groove, and the nut is embedded in the groove.

[0014] Preferably, a cover plate is magnetically connected to the opening of the groove.

[0015] Preferably, the inner wall of the sleeve is provided with a sliding groove, and the outer wall of the connecting pipe is provided with a sliding strip that slides in cooperation with the sliding groove.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a method with the following beneficial effects:

[0018] 1. This utility model, by setting up rebar clamps and connectors, allows the connecting blocks at both ends of the connector to be inserted into the connecting sleeves of the two rebar clamps after the rebar clamps are fixed to the rebars. Then, connecting bolts are used to fix the connecting blocks to the connecting sleeves. The connectors limit the connection between the two rebars. When dealing with rebars of different spacing, the driving component can be rotated, which drives the bidirectional screw to rotate. Under the cooperation of the nut and the bidirectional screw, the bidirectional screw drives the two connecting tubes to move relative to or in opposite directions along the sleeves, thereby adjusting the length of the connectors. This facilitates limiting the rebars of different spacings, improves the flexibility of use, and increases construction efficiency.

[0019] 2. This utility model, by setting two vertically distributed connecting holes, allows for the adjustment of the installation angle between the connector and the rebar clamp when connecting bolts are passed through different connecting holes to connect the connecting sleeve. When parallel rebars need to be connected, the through holes of the two rebar clamps can be oriented in the same direction when installing the rebar clamps. When perpendicular rebars need to be connected, the through holes of the two rebar clamps can be oriented in mutually perpendicular directions when installing the rebar clamps, thus allowing the installation angle of the rebar clamps to be adjusted as needed. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the disassembled structure of the steel bar clamp of this utility model;

[0022] Figure 3 This is a schematic diagram showing the disassembled structure of the connector of this utility model;

[0023] Figure 4 This is a schematic diagram of the disassembled cross-sectional structure of this utility model;

[0024] Figure 5 This utility model Figure 4 Enlarged view of the structure at point A in the middle.

[0025] In the picture:

[0026] 1. Rebar clamp; 11. Clamping block; 12. Through-rebar hole; 13. Fastening bolt; 14. Connecting sleeve; 15. Connecting bolt;

[0027] 2. Connecting parts; 21. Sleeve; 22. Connecting pipe; 23. Connecting block; 24. Connecting hole; 25. Double-acting screw; 26. Nut; 27. Driving parts; 271. Worm; 272. Nut; 273. Worm wheel; 28. Support plate; 29. ​​Groove; 210. Cover plate; 211. Slide groove; 212. Slide bar. Detailed Implementation

[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] This utility model provides a technical solution:

[0030] Please see Figures 1-5 A high-strength shear wall steel reinforcement cage limiting and crack-preventing clamp includes two steel reinforcement clamps 1 and a connector 2. The two steel reinforcement clamps 1 are respectively set at both ends of the connector 2. The steel reinforcement clamps 1 include two oppositely distributed clamping blocks 11. A through hole 12 for passing through the steel reinforcement is opened between the two clamping blocks 11. A fastening bolt 13 is threaded to one side of one clamping block 11. The two clamping blocks 11 are fixedly installed by the fastening bolt 13. A connecting sleeve 14 is fixedly connected to one side of the other clamping block 11. A connecting bolt 15 passes through the inside of the connecting sleeve 14. By setting the steel reinforcement clamps 1, when fixing the steel reinforcement, the two clamping blocks 11 can be respectively placed on both sides of the steel reinforcement, the steel reinforcement is placed in the through hole 12, and then the fastening bolt 13 is used to fix the two clamping blocks 11, so that the two clamping blocks 11 clamp the steel reinforcement, thereby fixing the steel reinforcement clamps 1 to the steel reinforcement.

[0031] The connector 2 includes a sleeve 21 and connecting pipes 22 slidably connected to both ends of the sleeve 21. A connecting block 23 is fixedly connected to one end of the connecting pipe 22. Two vertically distributed connecting holes 24 are opened inside the connecting block 23. Connecting bolts 15 are adapted to the connecting holes 24. A bidirectional screw 25 is rotatably installed inside the sleeve 21. The two ends of the bidirectional screw 25 extend into the two connecting pipes 22 respectively. A nut 26 is embedded in the end of the connecting pipe 22 away from the connecting block 23. The nut 26 is threadedly connected to the bidirectional screw 25. A driving component 27 for driving the bidirectional screw 25 to rotate is provided in the middle of the sleeve 21. A support plate 28 is fixedly connected inside the sleeve 21, and the bidirectional screw 25 is rotatably mounted on the support plate 28. By setting the connector 2, after the rebar clamp 1 is fixed to the rebar, the connecting blocks 23 at both ends of the connector 2 can be inserted into the connecting sleeves 14 of the two rebar clamps 1 respectively. Then, the connecting blocks 23 and the connecting sleeves 14 are fixed with the connecting bolts 15. The connector 2 connects and limits the two rebars. When facing rebars with different spacing, the drive 27 can be rotated. The drive 27 drives the bidirectional screw 25 to rotate. Under the cooperation of the nut 26 and the bidirectional screw 25, the bidirectional screw 25 drives the two connecting tubes 22 to move relative to or in opposite directions along the sleeve 21, thereby adjusting the length of the connector 2, which is convenient for limiting the rebars with different spacing, improving the flexibility of use and improving construction efficiency.

[0032] By setting two vertically distributed connecting holes 24, when connecting bolts 15 are passed through different connecting holes 24 to connect the connecting sleeve 14, the installation angle of the connecting piece 2 and the rebar clamp 1 can be adjusted. When it is necessary to connect parallel rebars, the through holes 12 of the two rebar clamps 1 can be oriented in the same direction when installing the rebar clamp 1. When it is necessary to connect rebars that are perpendicular to each other, the through holes 12 of the two rebar clamps 1 can be oriented in a mutually perpendicular direction when installing the rebar clamp 1. Thus, the installation angle of the rebar clamp 1 can be adjusted according to the requirements.

[0033] Specifically, the driving component 27 includes a worm 271 rotatably mounted inside the sleeve 21, a nut 272 fixedly connected to one end of the worm 271, and a worm wheel 273 fixedly sleeved in the middle of the bidirectional screw 25 and meshing with the worm 271. By setting the driving component 27, when operating the driving component 27, it is only necessary to use a tool to rotate the nut 272, so that the nut 272 drives the worm 271 to rotate, so that the worm 271 drives the worm wheel 273 to rotate, so that the worm wheel 273 drives the bidirectional screw 25 to rotate.

[0034] Furthermore, the surface of the sleeve 21 is provided with a groove 29, and the nut 272 is embedded in the groove 29. The opening of the groove 29 is magnetically connected to a cover plate 210. By setting the groove 29 and the cover plate 210, the nut 272 can be covered and protected, so as to prevent the nut 272 from being damaged when it is needed.

[0035] Furthermore, the inner wall of the sleeve 21 is provided with a sliding groove 211, and the outer wall of the connecting pipe 22 is provided with a sliding strip 212 that slides in cooperation with the sliding groove 211. By providing the sliding groove 211 and the sliding strip 212, the sleeve 21 and the connecting pipe 22 can guide and limit each other, thereby improving the stability of the connector 2.

[0036] In practical use, the working principle of this utility model is as follows:

[0037] First, when fixing the reinforcing bar, two clamping blocks 11 can be placed on both sides of the reinforcing bar, and the reinforcing bar can be placed in the through hole 12. Then, the two clamping blocks 11 can be fixed with fastening bolts 13 so that the two clamping blocks 11 clamp the reinforcing bar, thereby fixing the reinforcing bar clamp 1 to the reinforcing bar.

[0038] After the rebar clamp 1 is fixed to the rebar, the length of the connector 2 can be adjusted according to the spacing of the rebar. During adjustment, use a tool to rotate the nut 272, so that the nut 272 drives the worm 271 to rotate, the worm 271 drives the worm wheel 273 to rotate, and the worm wheel 273 drives the double screw 25 to rotate. Under the cooperation of the nut 26 and the double screw 25, the double screw 25 drives the two connecting pipes 22 to move relative to or opposite to each other along the sleeve 21. After adjusting the connector 2 to a suitable length, insert the connecting blocks 23 at both ends of the connector 2 into the connecting sleeves 14 of the two rebar clamps 1 respectively. Then use the connecting bolts 15 to fix the connecting blocks 23 to the connecting sleeves 14. The connector 2 is used to connect and limit the two rebars.

[0039] In summary, this high-strength shear wall steel reinforcement cage limiting and crack-preventing clamp, by setting steel reinforcement clamp 1 and connector 2, allows for adjustment of the length of connector 2, facilitating the limiting of steel reinforcements at different spacings, improving the flexibility of use, and increasing construction efficiency.

[0040] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A high-strength shear wall reinforcement cage limiting and crack-preventing clamp, comprising two reinforcement clamps (1) and a connector (2), characterized in that: Two steel bar clamps (1) are respectively disposed at both ends of the connector (2). Each steel bar clamp (1) includes two oppositely distributed clamps (11). A through hole (12) for passing through the steel bar is provided between the two clamps (11). A fastening bolt (13) is threadedly connected to one side of one of the clamps (11). The two clamps (11) are fixedly installed by the fastening bolt (13). A connecting sleeve (14) is fixedly connected to one side of the other clamp (11). A connecting bolt (15) passes through the inside of the connecting sleeve (14). The connector (2) includes a sleeve (21) and a connecting tube (22) slidably connected to both ends of the sleeve (21). A connecting block (23) is fixedly connected to one end of the connecting tube (22). Two vertically distributed connecting holes (24) are opened inside the connecting block (23). A bidirectional screw (25) is rotatably installed inside the sleeve (21). The two ends of the bidirectional screw (25) extend into the two connecting tubes (22) respectively. A nut (26) is embedded in the end of the connecting tube (22) away from the connecting block (23). The nut (26) is threadedly connected to the bidirectional screw (25). A driving member (27) for driving the bidirectional screw (25) to rotate is provided in the middle of the sleeve (21).

2. The high-strength shear wall reinforcement cage limiting and crack-preventing clamp according to claim 1, characterized in that: The connecting bolt (15) is adapted to the connecting hole (24).

3. The high-strength shear wall reinforcement cage limiting and crack-preventing clamp according to claim 1, characterized in that: The sleeve (21) is fixedly connected to a support plate (28), and the bidirectional screw (25) is rotatably mounted on the support plate (28).

4. The high-strength shear wall reinforcement cage limiting and crack-preventing clamp according to claim 1, characterized in that: The drive component (27) includes a worm (271) rotatably mounted in the sleeve (21), a nut (272) fixedly connected to one end of the worm (271), and a worm wheel (273) fixedly sleeved in the middle of the double-acting screw (25) and meshing with the worm (271).

5. The high-strength shear wall reinforcement cage limiting and crack-preventing clamp according to claim 4, characterized in that: The sleeve (21) has a groove (29) on its surface, and the nut (272) is embedded in the groove (29).

6. The high-strength shear wall reinforcement cage limiting and crack-preventing clamp according to claim 5, characterized in that: A cover plate (210) is magnetically connected to the opening of the groove (29).

7. The high-strength shear wall reinforcement cage limiting and crack-preventing clamp according to claim 1, characterized in that: The inner wall of the sleeve (21) is provided with a sliding groove (211), and the outer wall of the connecting pipe (22) is provided with a sliding strip (212) that slides in cooperation with the sliding groove (211).