Recyclable steel reinforcement cage inner support

Abstract

The utility model discloses a recyclable steel bar cage inner support frame, including a plurality of inner support frame main part of interval setting along the length direction of steel bar cage, the steel bar cage includes a plurality of steel bar ring and a plurality of connecting steel bars, a plurality of connecting steel bars along the steel bar ring circumferentially even fixed connection, the inner support frame main part includes the center cross and four supporting legs of four supporting legs of corresponding cooperation of center cross, be provided with threaded rod between supporting leg and supporting leg, two ends of threaded rod are respectively with supporting leg and supporting leg screw connection, the supporting leg is close to one end of steel bar cage and is fixed with the U type clamping groove of cooperation of steel bar ring, when installing, through the threaded rod of adjusting, the steel bar ring is in the U type clamping groove and is resisted, through the rotation threaded rod change the size of inner support frame main part, to realize flexible support steel bar cage and the disassembly of inner support frame main part, replace traditional manual welding and cutting.

Description

Technical Field

[0001] This utility model relates to the field of steel cage technology, and in particular to a recyclable steel cage internal support frame. Background Technology

[0002] Currently, with the improvement of my country's economic level and the vigorous development of infrastructure projects, efficient and low-cost operation is a major trend for current and future development. Currently, due to their large size (approximately 2 meters in diameter) and long length, bored pile reinforcement cages are prone to deformation and twisting during lifting, transportation, and installation due to their significant weight. Therefore, cross-shaped reinforcing bars are often used as internal supports to ensure that the reinforcement does not deform throughout the process, guaranteeing project quality and improving construction efficiency. However, in actual construction, this method has common problems, mainly in the following aspects: (1) The strength of the reinforcing hoop can only be improved by welding the internal bracing to the reinforcing hoop inside the steel cage one by one. When dealing with steel cages of different sizes, it is also necessary to select internal bracing of different lengths and types. The welding process is complicated, the workload is large, and it is time-consuming and labor-intensive. (2) During the lifting of the steel cage, due to the large length-to-slenderness ratio of the steel cage, the flexible deformation of the main reinforcement is very likely to cause the rigid weld between the cross support and the reinforcing hoist to break, resulting in a lifting safety accident. (3) During the lowering process of the steel cage, the cross supports need to be cut off one by one to ensure the smooth installation of the subsequent guide pipes. The cutting process is complicated and seriously affects the installation efficiency of the steel cage. (4) The cross-bracing steel bars are temporary steel bars. Each cut results in reasonable losses, and the cut short steel bars are very easy to be lost, which is very unfavorable for cost control. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the technical problem to be solved by this utility model is to propose a recyclable internal support frame for steel cages. By designing the internal support frame in a modular way, the internal support frame can be repeatedly recycled for different types of steel cages.

[0004] To achieve this objective, the present invention adopts the following technical solution: This utility model provides a recyclable inner support frame for a steel cage, comprising several inner support frame bodies spaced apart along the length of the steel cage. The steel cage includes several steel rings and several connecting steel bars. The several connecting steel bars are uniformly fixed along the circumference of the steel rings, and the several steel rings are uniformly arranged along the length of the connecting steel bars. The main body of the inner support frame includes a central cross and four legs that correspond to the four legs of the central cross. The central cross includes a central seat. The four legs are fixedly mounted on the four sides of the central seat along the circumference of the reinforcing steel ring. A threaded rod is provided between the legs and the legs. The two ends of the threaded rod are threadedly connected to the legs and the legs, respectively. A U-shaped groove that mates with the reinforcing steel ring is fixedly provided at the end of the leg near the reinforcing steel cage. During installation, the reinforcing steel ring abuts against the U-shaped groove by adjusting the threaded rod.

[0005] The beneficial effects of this utility model are as follows: (1) By setting up multiple units for modular design, the internal support does not need to be welded to the inside of the steel cage one by one to improve strength. Instead, the size of the main body of the internal support frame is changed by rotating the threaded rod to achieve flexible support of the steel cage and disassembly of the main body of the internal support frame, replacing the traditional manual welding and cutting. Moreover, when dealing with steel cages of different sizes, the size of the main body of the internal support frame can be actively adjusted to deal with different types of steel cages. (2) During the lifting of the steel cage, even if the steel cage has a large length-to-slenderness ratio, the structural strength and vibration during movement can be increased by using easily disassembled internal support rods and buffer dampers, so as to avoid the breakage of the rigid weld between the traditional cross support and the steel cage and the lifting safety accident. (3) The process of lowering the steel cage does not require complicated dismantling and cutting procedures, and it can be repeatedly recycled and reused. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of a recyclable steel cage internal support frame provided in Embodiment 1 of this utility model; Figure 2 This is an assembly diagram of a recyclable steel cage internal support frame provided in Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of a recyclable steel cage internal support frame provided in Embodiment 2 of this utility model; Figure 4 This is a schematic diagram of a recyclable steel cage internal support frame provided in Embodiment 3 of this utility model; Figure 5 This is a schematic diagram of a recyclable steel cage internal support frame (without steel cage) provided in Embodiment 3 of this utility model; Figure 6 yes Figure 5 Enlarged diagram of A in the middle; Figure 7 This is a schematic diagram of the buffer damper provided in Embodiment 3 of this utility model; Figure 8This is an exploded schematic diagram of the resistance arm provided in Embodiment 3 of this utility model; Figure 9 This is a schematic diagram of the structure of a recyclable steel cage internal support frame provided in Embodiment 4 of this utility model. Figure 10 This is an assembly diagram of the support legs and feet provided in Embodiment 4 of this utility model.

[0007] In the picture: 1. Reinforcing cage; 11. Reinforcing ring; 12. Connecting reinforcing bars; 2. Internal support frame main body; 21. Central cross; 211. Support leg; 22. Support foot; 23. Threaded rod; 221. U-shaped clamping groove; 212. Central seat; 2121. Flange seat; 24. Internal support rod; 25. Buffer damper; 251. Damping arm; 2511. Fixed damping seat; 2512. Dynamic damping seat; 2513. Damping component; 25111. Fixed base; 25112. Fixed clamping seat; 2 5113, Fixed clamping groove; 25114, Fixed base lug; 222, Limiting part; 25121, Moving base; 25122, Moving clamping seat; 25123, Moving clamping groove; 25124, Moving base lug; 25131, Damping frame; 25132, Damping rod; 25133, Damping cavity; 25134, Damping ring; 25135, Arc-shaped damping plate; 25136, Connecting block; 25137, Insertion hole; 2111, Leg hole; 2122, Center hole; 26, Center tube; 27, Center rod. Detailed Implementation

[0008] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0009] To address the problem of deformation and twisting of large and long bored pile reinforcement cages during lifting, transportation, and installation due to their heavy weight, this invention provides a reusable and easily disassembled internal support frame for the reinforcement cage, ensuring that the reinforcement remains undeformed throughout the process, guaranteeing project quality, and improving construction efficiency.

[0010] Example 1: First, the reinforcing cage 1 includes several reinforcing rings 11 and several connecting reinforcing bars 12. The connecting reinforcing bars 12 are uniformly fixed around the reinforcing rings 11, and the reinforcing rings 11 are uniformly arranged along the length of the connecting reinforcing bars 12, thus forming a long cylindrical reinforcing cage 1. In this example, the internal support frame of the reinforcing cage includes several internal support frame bodies 2 spaced apart along the length of the reinforcing cage 1. The internal support frame body 2 includes a central cross 21 and four legs 22 corresponding to the four legs 211 of the central cross 21. The central cross 21 includes a central seat 212 and four legs. 211 is fixedly mounted on the four sides of the central seat 212 along the circumference of the reinforcing bar ring 11. A threaded rod 23 is provided between the support leg 211 and the support foot 22. The two ends of the threaded rod 23 are threadedly connected to the support leg 211 and the support foot 22 respectively. Thus, before the reinforcing cage 1 is lifted, during installation, the threaded rod 23 is first installed on the four support legs 211 corresponding to the central cross 21. Then, four support feet 22 are connected to the other end of the threaded rod 23 to form the inner support frame body 2. After the assembled inner support frame body 2 is placed inside the reinforcing cage 1, further, the support foot 22 is fixedly mounted near one end of the reinforcing cage 1. The U-shaped clamping groove 221 that mates with the reinforcing ring 11 is installed by adjusting the threaded rod 23. This rotation of the threaded rod 23 causes the four support legs 22 to gradually approach the reinforcing ring 11, ultimately causing the reinforcing ring 11 to abut against the U-shaped clamping groove 221. Specifically, rotating the threaded rod 23 expands the legs 211 and support legs 22, increasing the radius of the entire inner support frame 2. The U-shaped clamping groove 221 of the support legs 22 then tightens the reinforcing ring 11, achieving structural reinforcement. Further, the reinforcing ring 1 is installed at even intervals along its length. Under the reinforcing cage 1... During the installation process, each inner support frame body 2 is dismantled section by section. By rotating and adjusting the threaded rod 23, the radius of the entire inner support frame body 2 is reduced, allowing the U-shaped clamp 221 to detach from the steel ring 11, be removed, and transported to the steel processing plant for future use. This modular design of the support legs 211, support feet 22, and threaded rod 23 makes the installation of the inner support frame body 2 convenient and cost-effective. By rotating the threaded rod 23 to change the size of the inner support frame body 2, flexible support for the steel cage 1 and dismantling of the inner support frame body 2 are achieved, replacing traditional manual welding and cutting.

[0011] Example 2: In Example 1, multiple detachable inner support frame bodies 2 were installed inside the reinforcing cage 1 to prevent deformation. However, during hoisting, to achieve a good anti-deformation effect, the spacing between the multiple inner support frame bodies 2 needs to be minimized (i.e., as dense as possible). Excessive spacing would result in poor anti-deformation effect, but setting too many inner support frame bodies 2 would make installation too cumbersome and make the combination of the reinforcing cage 1 and the inner support frame bodies 2 very heavy. Therefore, flange seats 2121 are fixed on the other two sides of the center seat 212, and an inner support rod 24 is installed between two adjacent inner support frame bodies 2. The axial direction of the inner support rod 24 is parallel to the length direction of the reinforcing cage 1, and both ends of the inner support rod 24 are connected to the flange of the flange seat 2121 of the center seat 212. In this way, by adding detachable inner support rods 24 between two adjacent inner support frame bodies 2, the anti-deformation support strength of the inner support frame bodies 2 for the reinforcing cage 1 along the length direction can be increased without adding too many inner support frame bodies 2. It is also more convenient to install and can be reused.

[0012] Example 3: Based on Example 2, because the inner support rod 24 is relatively long, it will deform under different weights of steel cage 1 or during long-term use, thus affecting its use. Therefore, the inner support frame body 2 is equipped with cross-shaped dampers 25 on both sides. These dampers 25 buffer the deformation and flutter that occur during the hoisting of the steel cage 1. The dampers 25 include two V-shaped damping arms 251, which are symmetrical about the inner support rod 24. Each damping arm 251 can individually correspond to each outrigger 211. Thus, during the hoisting of the reinforcing cage 1, the four damping arms 251 arranged in a cross shape can evenly cope with the deformation of the reinforcing cage 1 along its diameter. Furthermore, each damping arm 251 includes a fixed damping seat 2511 that cooperates with the outrigger 211 and a movable damping seat 2512 that cooperates with the inner support rod 24. A damping element 2513 is provided between the fixed damping seat 2511 and the movable damping seat 2512. The structure of the damping arm 251 is described in detail below: (1) The fixed damping seat 2511 includes a fixed base 25111 and a fixed clamp 25112 that cooperate with the support leg 211. The fixed base 25111 and the fixed clamp 25112 are provided with a fixed clamp groove 25113 that cooperates with the support leg 211. A fixed base lug 25114 that cooperates with the damper is provided on one side of the fixed base 25111. One side of the fixed clamp 25112 is hinged to the fixed base 25111, and the other side is detachably connected to the fixed base 25111. A limiting part 222 that cooperates with the fixed damping seat 2511 is also provided on the support leg 211 to fix the position of the fixed damping seat 2511.

[0013] (2) The dynamic damping seat 2512 includes a dynamic base 25121 and a dynamic clamping seat 25122 that cooperate with the inner support rod 24. The dynamic base 25121 and the dynamic clamping seat 25122 are provided with dynamic clamping grooves 25123 that cooperate with the inner support rod 24. The dynamic base 25121 is provided with dynamic base ears 25124 that cooperate with the damper on both sides. One side of the dynamic clamping seat 25122 is hinged to the dynamic base 25121, and the other side is detachably connected to the dynamic base 25121. The dynamic damping seat 2512 is slidably connected to the inner support rod 24.

[0014] (3) The damping component 2513 includes a damping frame 25131 and damping rods 25132 disposed at both ends of the damping frame 25131. The damping frame 25131 is also provided with a damping cavity 25133. The damping cavity 25133 is provided with a damping ring 25134. The damping ring 25134 includes two arc-shaped damping plates 25135. Connecting blocks 25136 are fixed at both ends of the damping plates. The damping frame 25131 has insertion holes 25137 at both ends that cooperate with the damping rods 25132. One end of the damping rod 25132 is inserted into the damping frame 25131 along the insertion hole 25137 and is detachably connected to the connecting block 25136. The other end is hinged to the fixed base ear 25114 or the moving base ear 25124. In summary, during installation, the damping arm 251 must be assembled externally. First, the damping ring 25134 is placed inside the damping cavity 25133, ensuring that the surfaces of the two arc-shaped damping plates 25135 abut against the wall of the damping cavity 25133 for guiding and limiting. Then, one end of the damping rod 25132 is inserted into the damping frame 25131 through the insertion hole 25137, connecting to the two ends of the damping ring 25134 (i.e., the connecting blocks 251). 36) The connection is fixed by bolts. To facilitate bolt fixing, two openings (not shown in the figure) can be made on the side wall of the damping frame 25131 for fixing. Then, the damping rod 25132 and the fixed base 25114 at one end of the damping frame 25131 are hinged together, and the damping rod 25132 and the moving base 25124 at the other end of the damping frame 25131 are hinged together. This completes the assembly of a damping arm 251, and then completes the assembly of the buffer damper 25.

[0015] When the buffer damper 25 is assembled on both sides of the inner support frame body 2, firstly, the fixed base 25111 of the fixed damping seat 2511 is engaged with the support leg 211. After the fixed base 25111 and the fixed clamping groove 25113 of the fixed clamping seat 25112 together hold the support leg 211 tightly, the fixed base 25111 and the fixed clamping seat 25112 are locked. In the same way, the fixed damping seat 2511 on the other side of the buffer damper 25 is connected to the corresponding support leg 211, and limited by a limit. Part 222 prevents it from sliding along the support leg 211; further, the moving base 25121 of the moving damping seat 2512 is engaged with the inner support rod 24, and the moving base 25121 and the moving clamping groove 25123 of the moving clamping seat 25122 together hold the inner support rod 24 tightly, and then the moving base 25121 and the moving clamping seat 25122 are locked; in this way, the assembly of one side of the buffer damper 25 is completed, and the assembly of all buffer dampers 25 can be completed in turn using the same method.

[0016] By setting up cross-shaped buffer dampers 25 on both sides of the inner support frame body 2, the deformation, flutter and reverse movement of the steel cage 1 can be effectively buffered during the hoisting process, protecting the safety and normal use of the inner support rod 24 and the inner support frame body 2.

[0017] Example 4: A recyclable internal support frame for a steel cage includes several internal support frame bodies 2 spaced apart along the length of the steel cage 1. The steel cage 1 includes several steel rings 11 and several connecting steel bars 12. The connecting steel bars 12 are uniformly fixed around the steel rings 11, and the steel rings 11 are uniformly arranged along the length of the connecting steel bars 12. The internal support frame body 2 includes a central cross 21 and four legs 22 corresponding to the four legs 211 of the central cross 21. The legs 211 are provided with leg holes 2111 that mate with the legs 22. The system includes a central base 212, four legs 211 fixedly mounted on the four sides of the central base 212 along the circumference of the reinforcing ring 11, a central hole 2122 opened in the central base 212 along the axial direction of the reinforcing cage 1, the leg holes 2111 and the central hole 2122 communicating, a central tube 26 (e.g., welded) that mates with the central hole 212 is fixed between the central bases 212 of two adjacent inner support bodies 2; it also includes a central rod 27 that mates with the central tube 26, and a U-shaped clamping groove 221 that mates with the reinforcing ring 11 is fixedly provided at one end of the support leg 22 near the reinforcing cage 1, the central rod 27 being inserted into the central tube during installation. 26 is positioned so that the reinforcing bar ring 11 abuts against the U-shaped clamping groove 221; the above structure mainly consists of an assembly of several inner support frame bodies 2 connected in series by the central tube 26 and a central rod 27. Therefore, in use, the assembly of the central tube 26 and several inner support frame bodies 2 needs to be fabricated externally, then the assembly of the central tube 26 and several inner support frame bodies 2 is placed inside the reinforcing cage 1, then the assembly of the central tube 26 and several inner support frame bodies 2 is erected from both ends, and the support legs 22 are inserted one by one into the leg holes 2111 of the support legs 211. Finally, the central rod is... After the central tube 26 is inserted, the support leg 22 is pushed against the reinforcing ring 11. To facilitate the insertion of the central rod 27 into the central tube 26, the support leg 22 is pushed against the reinforcing ring 11. The end of the support leg 22 near the central hole 2122 is set as a wedge shape to cooperate with the central rod 27, so that the reinforcing ring 11 abuts in the U-shaped clamping groove 221, and the central rod 27 and the central tube 26 are fixed from both ends. This can avoid personnel from working inside the reinforcing cage 1. The entire installation can be completed outside the reinforcing cage 1. This is more suitable for scenarios with small diameters and where it is not suitable for personnel to enter the reinforcing cage 1 for work.

[0018] This utility model has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. This utility model is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are all within the protection scope of this utility model.

Claims

1. A recyclable steel cage internal support frame, characterized in that, It includes several inner support frame bodies (2) spaced apart along the length of the steel cage (1). The steel cage (1) includes several steel rings (11) and several connecting steel bars (12). The several connecting steel bars (12) are uniformly fixed along the circumference of the steel rings (11), and the several steel rings (11) are uniformly arranged along the length of the connecting steel bars (12). The inner support frame body (2) includes a central cross (21) and four legs (22) that correspond to and cooperate with the four legs (211) of the central cross (21). A threaded rod (23) is provided between the legs (211) and the legs (22). The two ends of the threaded rod (23) are threadedly connected to the legs (211) and the legs (22) respectively. A U-shaped groove (221) that cooperates with the steel ring (11) is fixed at one end of the leg (22) near the steel cage (1). During installation, the steel ring (11) abuts against the U-shaped groove (221) by adjusting the threaded rod (23).

2. The recyclable steel cage internal support frame according to claim 1, characterized in that, The central cross (21) includes a central seat (212), and four legs (211) are fixed on the four sides of the central seat (212) along the circumference of the steel ring (11). Flange seats (2121) are fixed on the other two sides of the central seat (212). An inner support rod (24) is provided between two adjacent inner support frame bodies (2). The axial direction of the inner support rod (24) is parallel to the length direction of the steel cage (1). The two ends of the inner support rod (24) are connected to the flange of the flange seat (2121) of the central seat (212).

3. The recyclable steel cage internal support frame according to claim 2, characterized in that, The inner support frame body (2) is also provided with a cross-shaped buffer damper (25) on both sides. The buffer damper (25) includes two damping arms (251) in a V-shape. The two damping arms (251) are symmetrical about the inner support rod (24).

4. The recyclable steel cage internal support frame according to claim 3, characterized in that, The damping arm (251) includes a fixed damping seat (2511) that cooperates with the outrigger (211) and a movable damping seat (2512) that cooperates with the inner support rod (24). A damping element (2513) is provided between the fixed damping seat (2511) and the movable damping seat (2512).

5. The recyclable steel cage internal support frame according to claim 4, characterized in that, The fixed damping seat (2511) includes a fixed base (25111) and a fixed clamp (25112) that cooperate with the support leg (211). The fixed base (25111) and the fixed clamp (25112) are provided with a fixed clamp groove (25113) that cooperates with the support leg (211). The fixed base (25111) is provided with a fixed base lug (25114) that cooperates with the damper on one side. The fixed clamp (25112) is hinged to the fixed base (25111) on one side and detachably connected to the fixed base (25111) on the other side. The support leg (211) is also provided with a limiting part (222) that cooperates with the fixed damping seat (2511) to fix the position of the fixed damping seat (2511).

6. The recyclable steel cage internal support frame according to claim 5, characterized in that, The dynamic damping seat (2512) includes a dynamic base (25121) and a dynamic clamping seat (25122) that cooperate with the inner support rod (24). The dynamic base (25121) and the dynamic clamping seat (25122) are provided with dynamic clamping grooves (25123) that cooperate with the inner support rod (24). The dynamic base (25121) is provided with dynamic base ears (25124) that cooperate with the damper on both sides. One side of the dynamic clamping seat (25122) is hinged to the dynamic base (25121), and the other side is detachably connected to the dynamic base (25121). The dynamic damping seat (2512) is slidably connected to the inner support rod (24).

7. The recyclable steel cage internal support frame according to claim 6, characterized in that, The damping component (2513) includes a damping frame (25131) and damping rods (25132) disposed at both ends of the damping frame (25131). A damping cavity (25133) is also provided inside the damping frame (25131). A damping ring (25134) is disposed inside the damping cavity (25133). The damping ring (25134) includes two arc-shaped damping plates (25135). Connecting blocks (25136) are fixed at both ends of the damping plates. The damping frame (25131) has insertion holes (25137) at both ends that mate with the damping rod (25132). One end of the damping rod (25132) is inserted into the damping frame (25131) along the insertion hole (25137) and is detachably connected to the connecting block (25136). The other end is hinged to the fixed base (25114) or the moving base (25124).

8. A recyclable steel cage internal support frame, characterized in that, It includes several inner support frame bodies (2) spaced apart along the length of the steel cage (1). The steel cage (1) includes several steel rings (11) and several connecting steel bars (12). The several connecting steel bars (12) are uniformly fixed along the circumference of the steel rings (11), and the several steel rings (11) are uniformly arranged along the length of the connecting steel bars (12). The inner support frame body (2) includes a central cross (21) and four legs (22) corresponding to the four legs (211) of the central cross (21). The legs (211) are provided with leg holes (2111) that cooperate with the legs (22). The central cross (21) includes a central seat (212). The four legs (211) are fixed on the four sides of the central seat (212) along the circumference of the steel ring (11). The central seat (212) is provided with a central hole (2122) along the axial direction of the steel cage (1). A central tube (26) that cooperates with the central hole (2122) is fixed between the central seats (212) of two adjacent inner support frame bodies (2). It also includes a central rod (27) that cooperates with the central tube (26). The support leg (22) is fixed with a U-shaped groove (221) that cooperates with the steel ring (11) at one end near the steel cage (1). During installation, the central rod (27) is inserted into the central tube (26) so that the steel ring (11) abuts against the U-shaped groove (221).

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