Anti-deformation support device for small-diameter steel bar reinforcement cage

Abstract

This utility model relates to the field of civil engineering technology and discloses a deformation-resistant support device for small-diameter steel reinforcement cages. It includes two arc-shaped support components. The key feature is that two adjusting sleeves are fixedly connected to adjacent sides of each of the two arc-shaped support components. Each of the adjacent sides of the two adjusting sleeves is threaded with a double-ended externally threaded rod, the external thread of which is connected to a hexagonal bolt. Furthermore, each of the adjacent sides of the other two adjusting sleeves is fixedly connected to a hexagonal bolt. A buffer assembly for cushioning is fixedly connected to adjacent sides of each arc-shaped support component. The buffer assembly includes two inner rings, the distant sides of which are fixedly connected to adjacent sides of the arc-shaped support components. In this utility model, by rotating the double-ended externally threaded rod and the hexagonal bolt, the arc-shaped support components expand outward and contract inward, conforming to the inner diameter of the main reinforcement bars of the steel cage.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering technology, and in particular to a deformation-resistant support device for small-diameter steel reinforcement cages. Background Technology

[0002] Small-diameter reinforcing bars typically refer to steel bars with smaller diameters (such as 6mm, 8mm, 10mm, etc.), which have relatively lower strength and stiffness. During the fabrication and installation of reinforcing cages, small-diameter reinforcing bars are prone to bending and twisting due to their weak bending and deformation resistance. This can lead to dimensional deviations and a decrease in structural load-bearing capacity, necessitating the use of anti-deformation support devices for the reinforcing cage. These devices, by installing rigid support structures (such as cross braces or ring braces) inside or outside the reinforcing cage, effectively enhance the overall stiffness and stability of the cage, restricting the displacement and deformation of the reinforcing bars. This ensures the cage maintains its designed shape during transportation, hoisting, and concrete pouring, guaranteeing the structural integrity and project quality.

[0003] The anti-deformation support device for small-diameter rebar cages mainly consists of a rigid support frame, connectors, and positioning components. The rigid support frame is typically made of angle steel, round steel, or steel pipe, and is formed into a cross, grid, or ring structure through welding, bolting, or other methods, providing stable internal support for the rebar cage. Connectors securely link the support frame to the main reinforcing bars of the cage, ensuring that the support device and the cage share the load. Positioning components assist in adjusting and fixing the position of the support device, ensuring it accurately limits rebar displacement, enhances the overall rigidity of the cage, and effectively prevents deformation of small-diameter rebars during fabrication, transportation, and installation.

[0004] In existing technologies, some deformation-resistant support devices for small-diameter steel reinforcement cages are susceptible to deformation due to insufficient stiffness of the main reinforcement bars and the tightening force of the stirrups, leading to a reduction in the diameter of the steel cage between the inner stiffening stirrups. This deformation affects the acceptance rate of the steel cage, reduces the thickness of the concrete cover, and impacts structural durability. Furthermore, it cannot be restored through conventional correction methods. Therefore, a deformation-resistant support device for small-diameter steel reinforcement cages is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a deformation-resistant support device for small-diameter steel reinforcement cages. It aims to improve the existing technology where insufficient main reinforcement stiffness makes the cage susceptible to the tightening force of stirrups, leading to a reduction in the diameter of the steel cage between the inner stiffening hoops. This deformation affects the acceptance rate of the steel cage, reduces the thickness of the concrete cover, impacts structural durability, and cannot be restored through conventional correction methods.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A deformation-resistant support device for small-diameter steel rebar cages includes two arc-shaped support components. The device is characterized in that: two adjusting sleeves are fixedly connected to adjacent sides of the two arc-shaped support components; a double-headed external threaded rod is threaded to adjacent sides of the two adjusting sleeves; the external thread of the double-headed external threaded rod is connected to an external hexagonal bolt; and external hexagonal bolts are fixedly connected to adjacent sides of the other two adjusting sleeves. A buffer assembly for buffering is fixedly connected to adjacent sides of the arc-shaped support components.

[0008] As a further description of the above technical solution:

[0009] The buffer assembly includes two inner rings. The far sides of the two inner rings are fixedly connected to the near sides of the arc support member. Multiple protective shells are fixedly connected to the near sides of the two inner rings. A fixing plate is fixedly connected to the inner wall of the protective shell. A fixing column is fixedly connected to the inside of the fixing plate. A force-applying rod is slidably connected to the front side of the fixing column. A force-applying ring is fixedly connected to the outside of the force-applying rod. A spring is fixedly connected to the rear side of the force-applying ring.

[0010] As a further description of the above technical solution:

[0011] A buffer ring is fixedly connected to the front side of the protective shell, and the rear side of the buffer ring contacts the front side of the inner ring as the protective shell moves.

[0012] As a further description of the above technical solution:

[0013] The rear side of the spring is fixedly connected to the rear side of the fixed plate, and the outer side of the force-applying ring is slidably connected to the inner wall of the fixed plate.

[0014] As a further description of the above technical solution:

[0015] The spring is externally slidably connected to the inner wall of the fixed plate, and the force-applying rod is externally slidably connected to the front side of the protective shell;

[0016] As a further description of the above technical solution:

[0017] Multiple slots are provided on the adjacent sides of the two inner rings, and slots are provided on the inner wall of the fixing plate.

[0018] This utility model has the following beneficial effects:

[0019] 1. In this utility model, by rotating the double-headed external threaded rod and two external hexagonal bolts, the arc support component expands outward and contracts inward until it matches the inner diameter of the main reinforcement of the steel cage, thereby achieving effective deformation control. In addition, the radial shrinkage deformation of the steel cage can be properly controlled, thus significantly improving the acceptance rate.

[0020] 2. In this utility model, when the buffer ring is subjected to force, it causes the force-applying rod to move, which in turn causes the force-applying ring to move, thereby causing the spring to be subjected to force, which in turn causes the force-applying rod to be buffered. This achieves buffering for the placement of small-diameter steel bars. In addition, it can reduce deformation damage caused by collision and compression when placing small-diameter steel bars, thereby ensuring the morphological accuracy of the steel bars to meet construction requirements. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the anti-deformation support device for small-diameter steel bar cages proposed in this utility model.

[0022] Figure 2 This is a schematic diagram of the buffer ring structure of the anti-deformation support device for small-diameter steel bar cages proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the protective shell of the anti-deformation support device for small-diameter steel bar cages proposed in this utility model.

[0024] Figure 4 This is a schematic diagram of the external hexagonal structure of the anti-deformation support device for small-diameter steel bar cages proposed in this utility model;

[0025] Figure 5 This is a schematic diagram of the external hexagonal bolt of the anti-deformation support device for small-diameter steel bar cages proposed in this utility model.

[0026] Legend:

[0027] 1. Arc-shaped support component; 2. Adjusting sleeve; 3. External hexagonal bolt; 4. Double-ended external threaded rod; 5. External hexagonal bolt; 6. Buffer ring; 7. Inner ring; 8. Protective shell; 9. Fixing plate; 10. Fixing column; 11. Force-applying rod; 12. Force-applying ring; 13. Spring. Detailed Implementation

[0028] 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.

[0029] Reference Figure 2 and Figure 3This utility model provides an embodiment of a deformation-resistant support device for small-diameter reinforcing steel cages, comprising two arc-shaped support components 1. The arc-shaped support components 1 are matched to the inner diameter of the main reinforcing bars of the cage, providing radial support force. Two adjusting sleeves 2 are fixedly connected to adjacent sides of the two arc-shaped support components 1. The adjusting sleeves 2 are used to connect the components and ensure the overall stability of the device. A double-ended externally threaded rod 4 is threadedly connected to adjacent sides of the two adjusting sleeves 2. The double-ended externally threaded rod 4 adjusts the radial position of the arc-shaped support component 1 through its threads. An external hexagonal bolt 3 is connected to the external threads of the double-ended externally threaded rod 4, facilitating wrench operation and adjustment of the device dimensions. Additionally, an external hexagonal bolt 5 is fixedly connected to adjacent sides of the other two adjusting sleeves 2. The external hexagonal bolt 5 fixes and fine-tunes the position of the support components, ensuring that the device matches the inner diameter of the reinforcing cage. The overall structure is a circular assembly, and the components are connected through the adjusting sleeves 2 to form an adjustable radial support assembly. A buffer assembly for cushioning is fixedly connected to adjacent sides of the arc-shaped support components 1.

[0030] Reference Figure 2 and Figure 4 The buffer assembly includes two inner rings 7, with their far sides fixedly connected to the near side of the arc-shaped support member 1. The inner rings 7 serve as a protective layer for the entire buffer assembly, ensuring its stability. Multiple protective shells 8 are fixedly connected to the near side of the two inner rings 7, protecting the internal buffer components and ensuring stable operation. A fixing plate 9 is fixedly connected to the inner wall of the protective shell 8, supporting the internal buffer components and ensuring stable operation. A fixing post 10 is fixedly connected inside the fixing plate 9. A force-applying rod 11 is slidably connected to the front of the fixing post 10. A force-applying ring 12 is fixedly connected to the outside of the force-applying rod 11, and a spring 13 is fixedly connected to the rear of the force-applying ring 12. The fixing post 10 protects the internal rebound component, ensuring stable operation. When the force-applying rod 11 receives external force, it moves, causing the force-applying ring 12 to move, thus buffering the spring 13 and storing elastic force.

[0031] Reference Figures 1 to 3A buffer ring 6 is fixedly connected to the front side of the protective shell 8. The rear side of the buffer ring 6 contacts the front side of the inner ring 7 as the protective shell 8 moves. The buffer ring 6 receives external force, thus applying force to the force-applying rod 11, causing it to move. The rear side of the spring 13 is fixedly connected to the rear side of the fixed plate 9. The spring 13 receives the force applied by the force-applying ring 12, thus moving and storing elastic force. The outer side of the force-applying ring 12 is slidably connected to the inner wall of the fixed plate 9. The force-applying ring 12 receives the force applied by the force-applying rod 11, thus moving and stabilizing it. The outer side of the spring 13 is slidably connected to the inner wall of the fixed plate 9. The spring 13 receives the force applied by the force-applying ring 12, thus storing elastic force and stabilizing it. The outer side of the force-applying rod 11 is slidably connected to the front side of the protective shell 8. The force-applying rod 11 receives the force applied by the spring 13 and the buffer ring 6, thus moving and stabilizing it. Multiple slots are provided on the adjacent sides of the two inner rings 7, and slots are provided on the inner wall of the fixing plate 9. Slots 1 are used to fix the protective shell 8 and make it stable. Slots 2 are used to fix the internal fixing post 10, so that the spring 13 and the force rod 11 inside the fixing post 10 can operate stably.

[0032] Working principle: When the operator needs to make radial adjustments, the operator rotates the double-headed external threaded rod 4 and two external hexagonal bolts 5. The operator drives the arc support component 1 to expand outward or contract inward radially until it matches the inner diameter of the main reinforcement bar of the steel cage, thereby allowing the small-diameter steel bars to be radially adjusted. When the operator needs to fix the support, after adjusting to the target diameter, the operator tightens the two external hexagonal bolts 5, so that the two bolt heads abut against each other to form a stable support structure, preventing the steel cage from deforming. This achieves effective deformation control. In addition, the radial shrinkage deformation of the steel cage can be properly controlled, thereby significantly improving the acceptance rate.

[0033] When a small-diameter steel bar is placed in, the buffer ring 6 is impacted, which in turn impacts multiple force-applying rods, stabilizing the system and causing the force-applying ring 12 to move. This causes the spring 13 to be subjected to force 11, storing elastic force, which is then applied to the force-applying rod 11, thus buffering the impact and achieving cushioning for the placement of the small-diameter steel bar. In addition, it can reduce deformation damage caused by collisions and compression during the placement of the small-diameter steel bar, thereby ensuring the accuracy of the steel bar shape to meet construction requirements.

[0034] 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 deformation-resistant support device for small-diameter steel reinforcement cages, comprising two arc-shaped support components (1), characterized in that: Two adjusting sleeves (2) are fixedly connected to each adjacent side of the two arc support members (1). A double-headed external thread rod (4) is threadedly connected to each adjacent side of the two adjusting sleeves (2). An external hexagonal bolt (3) is threaded to the external thread of the double-headed external thread rod (4). An external hexagonal bolt (5) is fixedly connected to each adjacent side of the other two adjusting sleeves (2). A buffer assembly for buffering is fixedly connected to each adjacent side of the arc support member (1).

2. The anti-deformation support device for small-diameter steel reinforcement cages according to claim 1, characterized in that: The buffer assembly includes two inner rings (7), with the far side of the two inner rings (7) fixedly connected to the near side of the arc support member (1). Multiple protective shells (8) are fixedly connected to the near side of the two inner rings (7). A fixing plate (9) is fixedly connected to the inner wall of the protective shell (8). A fixing column (10) is fixedly connected inside the fixing plate (9). A force-applying rod (11) is slidably connected to the front side of the fixing column (10). A force-applying ring (12) is fixedly connected to the outside of the force-applying rod (11). A spring (13) is fixedly connected to the rear side of the force-applying ring (12).

3. The anti-deformation support device for small-diameter steel reinforcement cages according to claim 2, characterized in that: A buffer ring (6) is fixedly connected to the front side of the protective shell (8), and the rear side of the buffer ring (6) contacts the front side of the inner ring (7) as the protective shell (8) moves.

4. The anti-deformation support device for small-diameter steel reinforcement cages according to claim 2, characterized in that: The rear side of the spring (13) is fixedly connected to the rear side of the fixed plate (9), and the outer side of the force ring (12) is slidably connected to the inner wall of the fixed plate (9).

5. The anti-deformation support device for small-diameter steel reinforcement cages according to claim 2, characterized in that: The spring (13) is externally slidably connected to the inner wall of the fixed plate (9), and the force-applying rod (11) is externally slidably connected to the front side of the protective shell (8).

6. The anti-deformation support device for small-diameter steel reinforcement cages according to claim 2, characterized in that: Multiple slots are provided on the adjacent side of the two inner rings (7), and slots are provided on the inner wall of the fixing plate (9).

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