A reinforcing cage internal bracing device

CN224693832UActive Publication Date: 2026-08-28CHINA RAILWAY 11TH BUREAU GRP CORP LTD +2
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Patent Information

Application Number
CN202521550537.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-23
Publication Date
2026-08-28
Estimated Expiration
2035-07-23

AI Technical Summary

Technical Problem

[0005]本实用新型的目的在于:为了解决现有的钢筋笼技术中仅仅是将钢筋笼内部间隔焊支撑钢筋或内支撑体系需要同时调节多处顶托才能加固钢筋笼并且此支撑方法钢筋笼中心不好确定,因此,很容易因自身偏心问题导致钢筋笼变形,从而需要在钢筋笼制作、储存、运输时重新调整支撑杆的中心,降低施工效率的问题,而提出的一种钢筋笼内支撑装置

Benefits of technology

[0023]1. In this utility model, the support device includes multiple support systems with fixed support rods and movable support rods arranged at intervals inside the rebar cage. The fixed support rods are respectively equipped with fixed pulleys (with limiting grooves) at their ends, and a junction box, roller, rocker arm, limiting gear, limiting pin, torsion spring, and other structures at their centers. The movable support rods are equipped with rebar limiting grooves, rod body openings (fixed pulley fixing pin guide rails), wire rope fixing pins, and other structures at their ends. The fixed and movable support rods are combined and connected to the roller by adjusting wire ropes. The length and tension of the three adjusting wire ropes are adjusted according to actual conditions until the limiting grooves on the three support rods are on the same circle. The multiple support systems are installed at intervals inside the rebar cage, solving the problem of rebar cage deformation due to internal and external forces leading to cage failure and reduced construction efficiency.

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Abstract

The utility model discloses a kind of steel reinforcement cage inner supporting devices, belong to steel reinforcement cage technical field, including fixed support rod, multiple support systems and adjusting wire rope that movable support rod interval arrangement in steel reinforcement cage interior, the fixed support rod tip is respectively equipped with pulley with groove, center is equipped with wire distribution box, cylinder and rocker arm.The utility model in, movable support rod tip is equipped with steel reinforcement limiting slot, pole body opening (pulley fixed pin guide rail), wire rope fixed pin and the like structure, and fixed support rod and movable support rod are combined, and adjusting wire rope is connected to cylinder by adjusting wire rope, and according to actual situation, the length of three adjusting wire ropes is adjusted, and the tightness is adjusted to the limiting slot on three support rods on the same circle, multiple support systems are installed in steel reinforcement cage interior with interval, solve the problem that steel reinforcement cage is scrapped due to deformation under the action of internal force and external force, so that construction efficiency is reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of steel cage technology, and in particular relates to a support device inside a steel cage. Background Technology

[0002] As an indispensable material in construction engineering, reinforced steel cages and their pile foundation technology are also a crucial aspect of the process. Pile foundation technology is primarily used in the construction of large infrastructure projects such as high-rise buildings and bridges. During the fabrication, storage, and transportation of reinforced steel cages, a reliable internal support system is first required. Secondly, support systems are installed at intervals inside the cage. Finally, only after the support system is installed can the reinforcement cage be guaranteed to remain undeformed during fabrication, storage, and transportation. The support system reinforces the reinforced steel cage, making it more robust and preventing deformation from various external forces.

[0003] However, existing rebar cage technology simply involves welding support bars at intervals inside the rebar cage or using an internal support system that requires adjusting multiple supports simultaneously to reinforce the cage. Furthermore, the center of the rebar cage is difficult to determine with this support method. Therefore, the rebar cage is prone to deformation due to its own eccentricity, which necessitates readjusting the center of the support rods during the fabrication, storage, and transportation of the rebar cage, thus reducing construction efficiency.

[0004] Based on this, the present invention designs an internal support device for a steel cage to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to solve the problem that existing steel cage technology only involves welding support bars at intervals inside the steel cage or that the internal support system requires simultaneous adjustment of multiple top supports to strengthen the steel cage. Furthermore, the center of the steel cage is difficult to determine in this support method, which easily leads to deformation of the steel cage due to its own eccentricity. As a result, the center of the support rods needs to be readjusted during the fabrication, storage, and transportation of the steel cage, thus reducing construction efficiency. Therefore, this utility model proposes an internal support device for steel cages.

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

[0007] A support device for a reinforcing cage includes a fixed support rod, multiple support systems with movable support rods spaced apart inside the reinforcing cage, and an adjusting wire rope. The fixed support rods are respectively provided with grooved pulleys at their ends, a junction box, a roller and a rocker arm, a limiting gear, a limiting pin, and a torsion spring at their centers. The movable support rods are provided with reinforcing bar limiting grooves, openings in the rod body, and wire rope fixing pins at their ends. The fixed support rods and movable support rods are combined and connected to the roller by the adjusting wire rope. A clamping device is installed inside the movable support rods.

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

[0009] Each of the fixed support rods is connected to the roller and the junction box via a fixing assembly.

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

[0011] The fixing component includes a fixing member, a connector connected to the fixing support rod, and a roller and a junction box set on the connector. The fixing member has a pin hole and the end of the fixing member is threaded and fitted with a fixing cap.

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

[0013] The roller is located inside the connector, and a rocker arm is connected to the outside of the roller. The rocker arm is equipped with a gear and a gear positioning pin, and the gear and the gear positioning pin are connected by a torsion spring.

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

[0015] The movable support rod has a steel bar limiting groove at one end and a pulley guide rail on the rod body. The other end has a steel wire rope connecting pin welded on it, and the length of the steel wire rope connecting pin is slightly larger than the diameter of the movable support rod.

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

[0017] The movable support rod is inserted into the fixed support rod and is connected by an adjusting steel wire rope through a fixed pulley and a roller.

[0018] As a further description of the above technical solution:

[0019] The adjustment of the wire rope length and tension ensures that the three movable rods are positioned on the same circle and that the tension of the wire rope is consistent.

[0020] As a further description of the above technical solution:

[0021] The clamping device includes a housing, which is installed inside a movable support rod. A sliding plate is slidably connected inside the housing. A pressing block is fixedly connected above the sliding plate. Elastic clamping plates are symmetrically installed outside the pressing block. A return spring is fixedly connected below the sliding plate and is fixedly connected inside the housing.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0023] 1. In this utility model, the support device includes multiple support systems with fixed support rods and movable support rods arranged at intervals inside the rebar cage. The fixed support rods are respectively equipped with fixed pulleys (with limiting grooves) at their ends, and a junction box, roller, rocker arm, limiting gear, limiting pin, torsion spring, and other structures at their centers. The movable support rods are equipped with rebar limiting grooves, rod body openings (fixed pulley fixing pin guide rails), wire rope fixing pins, and other structures at their ends. The fixed and movable support rods are combined and connected to the roller by adjusting wire ropes. The length and tension of the three adjusting wire ropes are adjusted according to actual conditions until the limiting grooves on the three support rods are on the same circle. The multiple support systems are installed at intervals inside the rebar cage, solving the problem of rebar cage deformation due to internal and external forces leading to cage failure and reduced construction efficiency.

[0024] 2. In this utility model, when the rebar limiting groove of the movable support rod is locked outside the rebar, the rebar applies pressure to the extrusion block and drives the sliding plate to slide inside the casing. At this time, when the two elastic locking plates move into the casing, they are squeezed, thereby locking the rebar. At the same time, during the retraction, the pull spring applies elastic force to the sliding plate, causing the sliding plate to reset and drive the elastic locking plates to reset, thus releasing the limiting of the rebar and avoiding the problem of displacement when vibration or other influences occur. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a steel cage internal support device proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the rocker arm structure of the internal support device for a steel cage proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of a fixed pulley guide rail structure for an internal support device for a steel cage proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the adjustable wire rope structure of the internal support device for a steel cage proposed in this utility model;

[0029] Figure 5 This is a three-dimensional structural diagram of a locking device for an internal support structure of a steel cage proposed in this utility model.

[0030] Figure 6 This is a schematic diagram of the structure of the steel cage internal support device where the sliding plate and the outer shell are separated.

[0031] Legend:

[0032] 1. Fixed support rod; 2. Movable support rod; 3. Roller; 4. Junction box; 5. Grooved fixed pulley; 6. Rocker arm; 7. Cap; 8. Fixed pulley guide rail; 9. Adjustable wire rope; 10. Clamping device; 101. Housing; 102. Slide plate; 103. Pressing block; 104. Elastic clamping plate; 105. Pull-back spring. Detailed Implementation

[0033] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figures 1-6 ,

[0035] First embodiment:

[0036] This utility model provides a technical solution: a support device inside a rebar cage, comprising a plurality of support systems with fixed support rods 1 and movable support rods 2 arranged at intervals inside the rebar cage, and an adjusting wire rope 9. The fixed support rods 1 are respectively provided with grooved pulleys 5 at their ends, and a junction box 4, a roller 3, a rocker arm 6, a limiting gear, a limiting pin, and a torsion spring at their centers. The movable support rods 2 are provided with rebar limiting grooves, rod openings, and wire rope fixing pins at their ends. The fixed support rods 1 and movable support rods 2 are combined and connected to the roller 3 by the adjusting wire rope 9. A clamping device 10 is installed inside the movable support rods 2.

[0037] Specifically, such as Figures 2-4 As shown, each of the fixed support rods 1 is connected to the roller 3 and the junction box 4 via a fixing assembly. The fixing assembly includes a fixing component, a connecting component connected to the fixed support rod 1, and the roller 3 and the junction box 4 set on the connecting component. The fixing component has a pin hole and a threaded end with a fixing cap 7. The roller 3 is located inside the connecting component and is connected to a rocker arm 6. The rocker arm 6 has a gear and a gear positioning pin. The gear and the gear positioning pin are connected by a torsion spring. The movable support rod 2 has a steel bar limiting groove at one end and a set pulley guide rail 8 on the rod body. The other end has a steel wire rope connecting pin welded on it. The length of the steel wire rope connecting pin is slightly larger than the diameter of the movable support rod 2. The movable support rod 2 is inserted into the fixed support rod 1 and is connected by an adjusting steel wire rope 9 through a fixed pulley and the roller 3. The length and tension of the adjusting steel wire rope 9 are adjusted so that the three movable rods are on the same circle and the tension of the adjusting steel wire rope 9 is consistent.

[0038] During operation, the support device comprises multiple support systems, including fixed support rods 1 and movable support rods 2, arranged at intervals inside the reinforcing cage. At the end of each fixed support rod 1 is a fixed pulley (with a limiting groove), and at the center is a junction box 4, a roller 3, a rocker arm 6, a limiting gear, a limiting pin, a torsion spring, and other structures. At the end of each movable support rod 2 is a reinforcing bar limiting groove, a rod body opening (fixed pulley fixing pin guide rail), a wire rope fixing pin, and other structures. The fixed support rods 1 and 2 are combined and connected to the roller 3 by an adjusting wire rope 9. The roller 3 is externally connected to the rocker arm 6, which can rotate to drive the roller 3, thus tightening or loosening the adjusting wire rope 9. This combination makes tension adjustment controllable and labor-saving, while also facilitating operation by construction personnel. It is a key linkage structure for achieving a precise tensioning support system.

[0039] Furthermore, the length and tension of the three steel wire ropes are adjusted according to the actual situation so that the limiting grooves on the three support rods are on the same circle. Multiple support systems are installed at intervals inside the steel cage, which solves the problem of steel cages becoming unusable due to deformation caused by internal and external forces, thus reducing construction efficiency.

[0040] Second embodiment:

[0041] Specifically, such as Figures 5-6 As shown, the clamping device 10 includes a housing 101, which is installed inside the movable support rod 2. A slide plate 102 is slidably connected inside the housing 101. A pressing block 103 is fixedly connected above the slide plate 102. Elastic clamping plates 104 are symmetrically installed outside the pressing block 103. A return spring 105 is fixedly connected below the slide plate 102 and is fixedly connected inside the housing 101. The return spring 105 is connected below the slide plate 102. This combination ensures that the slide plate 102 always maintains its initial position when not subjected to external force. When the slide plate 102 is pushed, the return spring 105 stores elastic force and quickly resets the slide plate 102 after releasing the external force. This structural combination realizes the automatic reset function of the clamping device 10, which is convenient for repeated use and improves the sensitivity and reliability of the structural response.

[0042] During operation, when the rebar limiting groove of the movable support rod 2 is engaged outside the rebar, the rebar applies pressure to the pressing block 103, causing the sliding plate 102 to slide within the housing 101. At this time, the two elastic clamping plates 104 are compressed when they move into the housing 101, thus securing the rebar. Simultaneously, during retraction, the pull spring 105 applies elastic force to the sliding plate 102, causing the sliding plate 102 to reset and drive the elastic clamping plates 104 to reset, releasing the rebar from its limiting position. This prevents displacement when vibration or other factors occur.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A support device for a reinforcing cage, comprising a plurality of support systems including fixed support rods (1), movable support rods (2) spaced apart inside the reinforcing cage, and adjusting steel wire ropes (9), characterized in that, The fixed support rod (1) is provided with a grooved fixed pulley (5) at one end, a junction box (4), a roller (3), a rocker arm (6), a limiting gear, a limiting pin, and a torsion spring at the center. The movable support rod (2) is provided with a steel bar limiting groove, a rod body opening, and a steel wire rope fixing pin at one end. The fixed support rod (1) and the movable support rod (2) are combined and connected to the roller (3) by an adjusting steel wire rope (9). A clamping device (10) is installed inside the movable support rod (2).

2. The internal support device for a reinforcing cage according to claim 1, characterized in that, Each of the fixed support rods (1) is connected to the roller (3) and the junction box (4) via a fixing assembly.

3. The internal support device for a reinforcing cage according to claim 1, characterized in that, The fixing component includes a fixing member, a connector connected to the fixing support rod (1), and a roller (3) and a junction box (4) set on the connector. A pin hole is provided on the fixing member, and the end of the fixing member is threaded and a fixing cap (7) is added.

4. The internal support device for a reinforcing cage according to claim 1, characterized in that, The roller (3) is located inside the connector. The roller (3) is connected to the rocker arm (6). The rocker arm (6) is equipped with a gear and a gear positioning pin. The gear and the gear positioning pin are connected by a torsion spring.

5. The internal support device for a reinforcing cage according to claim 1, characterized in that, The movable support rod (2) has a steel bar limiting groove at one end and a pulley guide rail (8) on the rod body. The other end has a steel wire rope connecting pin welded on it, and the length of the steel wire rope connecting pin is slightly larger than the diameter of the movable support rod (2).

6. The internal support device for a reinforcing cage according to claim 1, characterized in that, The movable support rod (2) is inserted into the fixed support rod (1) and connected by the adjusting steel wire rope (9) through the fixed pulley and the roller (3).

7. The internal support device for a reinforcing cage according to claim 1, characterized in that, The length and tension of the adjustable wire rope (9) are adjusted so that the three movable rods are on the same circle and the tension of the adjustable wire rope (9) is consistent.

8. The internal support device for a reinforcing cage according to claim 1, characterized in that, The clamping device (10) includes a housing (101), which is installed inside the movable support rod (2). A sliding plate (102) is slidably connected inside the housing (101). A pressing block (103) is fixedly connected above the sliding plate (102). Elastic clamping plates (104) are symmetrically installed outside the pressing block (103). A return spring (105) is fixedly connected below the sliding plate (102) and is fixedly connected inside the housing (101).