A light portable reinforcing cage telescopic fixing support device

Abstract

The application discloses a portable reinforcing cage telescopic fixing support device which can be quickly disassembled, relates to the technical field of reinforcing cage installation, and comprises a circular ring, three fixed plates are fixedly connected to the outer side edges of the circular ring, U-shaped blocks are arranged on the outer side edges of the fixed plates, and through the cooperation between the cylinder, the circular ring, the movable ring, the threaded cylinder and other structures, the telescopic fixing support device can be arranged in the reinforcing cage, the cylinder is started, the movable ring is driven by the cylinder to move, the movable ring moves on the surface of the swing plate, the movable ring drives the movable plate to move, the movable ring is arranged on the surface of the movable plate, the inserting rod moves on the surface of the swing plate when the movable ring moves, the inserting rod gradually contacts the surface of the movable plate along with the movement of the movable ring, and the inclined groove on the swing plate makes the movement of the inserting rod on the surfaces of the swing plate and the movable plate more smooth and coherent.

Description

Technical Field

[0001] This invention relates to the field of rebar cage installation technology, specifically to a lightweight rebar cage telescopic fixing support device that can be quickly disassembled. Background Technology

[0002] In bridge construction, the diameter of pile foundations is often not uniform. In some pile foundation projects with large diameters and a large number of main reinforcement bars, in order to ensure that the pile foundation reinforcement cage does not undergo large deformation during lifting, transportation and lowering of the reinforcement cage and thus increase its own stability, internal support reinforcement bars are usually added to the reinforcement bars of the pile foundation reinforcement cage to increase its rigidity.

[0003] However, existing rebar cage fixing support devices have some problems in use. The existing rebar cage fixing support devices are often integrated, which makes it inconvenient to adjust their length or disassemble and replace them. If one of the support legs fails, it will be inconvenient to replace it, which will increase the economic cost of the device. At the same time, even if the existing rebar cage fixing support devices have a telescopic function, it is limited to one telescopic movement and is not convenient for secondary telescopic movement. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the purpose of the present invention is to provide a lightweight rebar cage telescopic fixing support device that can be quickly disassembled.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a lightweight, quick-disassembly rebar cage telescopic fixing support device, comprising a ring, three fixing plates fixedly connected to the outer edge of the ring, U-shaped blocks sleeved on the outer edge of each fixing plate, through holes at the top and bottom of each U-shaped block, fixing columns fixedly connected to the top and bottom of each fixing plate, the end of each fixing column away from the fixing plate passing through an adjacent through hole and fixedly connected to a fixing disc, threaded cylinders fixedly connected to the side of each U-shaped block away from the ring, each threaded cylinder having a first threaded rod threadedly connected to its inner cavity, and a connecting disc inserted into the end of each first threaded rod away from the ring.

[0006] Preferably, each of the connecting plates has two swing plates on the side away from the annulus. Each swing plate has a hinge on its outer edge, and the swing plates are movably connected to the outer edge of the connecting plate via the hinges. Each swing plate has a slot on the side away from the annulus, and a sliding groove is formed in each slot. A slider is movably connected in each sliding groove. A connecting post is inserted into one side of each slider. A movable plate is fixedly connected to the end of each connecting post away from the slider. Two adjacent movable plates are fitted together. Each of the two adjacent movable plates has a groove on its corresponding side, and a magnet is fixedly connected in each groove. Two adjacent magnets are fitted together.

[0007] Preferably, each of the movable plates has a slot on the side away from the ring, and a limiting post is inserted into each slot. A connecting plate is fixedly connected to the outer edge of each limiting post near the ring, and an adjusting plate is fixedly connected to the outer edge of each limiting post away from the ring. Each adjusting plate has a connecting hole, and a third threaded rod is threaded through the connecting hole. A nut is threaded to the outer edge of each third threaded rod near the bottom. The nut is located at the bottom of the adjusting plate, and an N-shaped rod is fixedly connected to the top of two adjacent third threaded rods.

[0008] Preferably, each of the threaded cylinders has a vertical rod fixedly connected to its bottom, a cylinder fixedly connected to the bottom end of each vertical rod, an L-shaped rod fixedly connected to the end of each cylinder away from the circular ring, and a movable ring fixedly connected to the end of each L-shaped rod away from the cylinder.

[0009] Preferably, each of the movable plates has a blind hole on the side away from the magnet. The movable ring is sleeved on the outer edge of two adjacent movable plates. Each outer edge of the movable ring has two limiting holes. A rod is inserted through the inner cavity of each limiting hole. The end of the rod away from the movable plate is fixedly connected to a limiting plate. The end of the rod away from the limiting plate is located in the adjacent blind hole. The side of the outer edge of the rod near the ring is inclined. A spring is sleeved on the outer edge of the rod. One end of the spring is fixedly connected to the outer edge of the movable ring, and the end of the spring away from the movable ring is fixedly connected to the limiting plate.

[0010] Preferably, the side of the swing plate away from the movable plate is provided with an inclined groove, and a number of limiting rods are fixedly connected to the outer edge of the first threaded rod away from the ring.

[0011] Preferably, three connecting rods are inserted into the outer edge of the ring. Each connecting rod has a cross rod fixedly connected to its end away from the ring. Each connecting rod has a second threaded rod at its end away from the ring. Each second threaded rod has a cross groove at its end near the ring. The cross rod is located in the cross groove. Each second threaded rod has a rotating disk fixedly connected to its end away from the ring.

[0012] Preferably, each of the connecting rods has a limiting plate at the end away from the ring. A threaded hole is opened at the center of the inner cavity of the limiting plate. The threaded hole is threaded to the outer edge of the second threaded rod. A second U-shaped plate is fixedly connected to the side of the limiting plate near the threaded cylinder. A cylinder is hinged to the inner cavity of the second U-shaped plate. Two movable grooves are opened on the side wall of the inner cavity of the cylinder. A movable rod is provided in the inner cavity of the cylinder. Two movable blocks are fixedly connected to the outer edge of the movable rod. The movable blocks are movably connected in adjacent movable grooves. A swing block is fixedly connected to the end of the movable rod away from the limiting plate. A first U-shaped plate is hinged to the outer edge of the swing block. The first U-shaped plate is fixedly connected to the outer edge of the threaded cylinder.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes the interplay of a cylinder, a ring, a movable ring, and a threaded cylinder to position a telescopic fixed support device inside a reinforcing cage. Activating the cylinder moves the movable ring, which moves across the surface of a swing plate, pushing the swing plate forward. As the movable ring moves, a rod moves across the surface of the swing plate, gradually contacting it. The inclined groove on the swing plate facilitates smoother and more continuous movement of the rod. When the rod reaches the blind hole on the swing plate, it enters the hole, connecting the movable ring and the swing plate. During the horizontal movement of the swing plate, the connecting plate first contacts the steel rod on the surface of the reinforcing cage, causing the connecting plate to rotate around the center of a limiting post. The limiting post... The movable adjusting plate rotates, moving to the outside of the steel rod to limit its movement. Then, the N-shaped rod and the third threaded rod are removed, and the third threaded rod is inserted through the adjusting plate. The nut is then rotated to the surface of the third threaded rod, allowing the N-shaped rod and the third threaded rod, in conjunction with the nut, to limit the movement of two adjacent adjusting plates. This, in turn, limits the movement of the steel rod, enabling the device to be installed at the rebar cage. If the movable plate's range of motion is limited and insufficient to contact the rebar cage, the limiting rod is rotated. This limits the movement of the first threaded rod, which rotates and moves inside the threaded cylinder. The threaded cylinder then moves the connecting plate and the swing plate towards the rebar cage, activating the cylinder. The cylinder, via the L-shaped rod, moves the movable ring, which in turn moves the movable plate via the insert rod, bringing the movable plate into contact with the rebar cage and completing the subsequent connection. If the angle of the threaded cylinder needs to be limited, the second threaded rod is rotated into the limiting plate and moved so that the cross groove inside the second threaded rod fits onto the surface of the cross rod. The limiting plate limits the cylinder through the second threaded rod, and then the limiting plate limits the threaded cylinder through the cylinder and the movable rod. If the angle of the threaded cylinder needs to be adjusted, the second threaded rod is rotated. The second threaded rod drives the limiting plate to move through the threaded hole on the limiting plate. The limiting plate drives the cylinder to move through the second U-shaped plate. The cylinder will swing, and the cylinder drives the movable rod to swing. The movable rod moves inside the cylinder and drives the threaded cylinder to rotate through the first U-shaped plate. The threaded cylinder drives the U-shaped block to rotate. When disassembly of the device is required, the cylinder is activated. The cylinder drives the movable ring towards the circular ring via the L-shaped rod. The movable ring drives the movable plate via the insert rod. When the insert rod moves to the inclined groove on the swing plate, the insert rod will gradually move away from the blind hole on the movable plate and move to the surface of the swing plate as the movable ring moves. The limit rod is rotated, which drives the first threaded rod to rotate, disengaging the first threaded rod from the inside of the threaded cylinder. This allows the first threaded rod, the swing plate, and the movable plate to be disassembled. If the space inside the steel cage is too small to allow the first threaded rod to completely disengage from the threaded cylinder during the movement of the first threaded rod, the cylinder moves the movable ring to the surface of the threaded cylinder. Then, the swing plate is adjusted. The swing plate swings via the hinge. After adjusting the swing plate, space is reserved for the movement of the first threaded rod. Before the swing plate swings, the N-shaped rod and the third threaded rod need to be removed from the adjusting plate. When the swing plate swings, it drives the movable plate to swing via the slider and the connecting column. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is a schematic diagram of the annular structure of the component of the present invention; Figure 4 This is an exploded view of the threaded cylinder component of the present invention; Figure 5 This is a schematic diagram of the cylinder structure of the component of the present invention; Figure 6 This is a schematic diagram of the first threaded rod structure of the component of the present invention; Figure 7 This is a top view of the swing plate component of the present invention; Figure 8 This is an exploded view of the movable plate of the component of the present invention; Figure 9 This is an exploded view of the limiting plate of the component of the present invention; Figure 10 This is a top view of the insertion rod of the component of the present invention; Figure 11 for Figure 8 Enlarged view of point A in the middle; Figure 12 for Figure 9 Enlarged view of section B in the middle.

[0015] The following are the labels in the diagram: 1. Ring; 2. Fixed plate; 3. Fixed column; 4. Fixed disc; 5. Connecting rod; 6. Cross rod; 7. U-shaped block; 8. Threaded cylinder; 9. First U-shaped plate; 10. Cylinder; 11. Movable ring; 12. First threaded rod; 13. Swing plate; 14. Movable plate; 15. L-shaped rod; 16. Limiting rod; 17. Connecting disc; 18. Magnet; 19. Connecting column; 20. Slider; 21. Adjusting plate; 22. Connecting plate; 23. Limiting column; 24. Limiting plate; 25. Second U-shaped plate; 26. Cylinder; 27. Movable rod; 28. Swing block; 29. ​​Movable block; 30. Second threaded rod; 31. Rotating disc; 32. Insert rod; 33. Spring; 34. Limiting disc; 35. N-shaped rod; 36. Third threaded rod; 37. Nut. Detailed Implementation

[0016] Please see Figure 1-12 This invention provides a technical solution: a lightweight, retractable steel cage telescopic fixing support device that can be quickly disassembled, comprising a ring 1, three fixing plates 2 fixedly connected to the outer edge of the ring 1, U-shaped blocks 7 fitted onto the outer edge of each fixing plate 2, through holes at the top and bottom of each U-shaped block 7, fixing columns 3 fixedly connected to the top and bottom of each fixing plate 2, the end of each fixing column 3 away from the fixing plate 2 passing through an adjacent through hole and fixedly connected to a fixing plate 4, threaded cylinders 8 fixedly connected to the side of each U-shaped block 7 away from the ring 1, each threaded cylinder 8 having a first threaded rod 12 threadedly connected to its inner cavity, and a connecting plate 17 inserted into the end of each first threaded rod 12 away from the ring 1. Two swing plates 13 are provided on the side of the connecting plate 17 away from the ring 1. The outer edge of the swing plate 13 is provided with a hinge. The swing plate 13 is movably connected to the outer edge of the connecting plate 17 through the hinge. The side of the swing plate 13 away from the ring 1 is provided with a slot. The slot is provided with a sliding groove. The sliding groove is movably connected to the sliding slider 20. The side of the sliding slider 20 is inserted with a connecting post 19. The end of the connecting post 19 away from the sliding slider 20 is fixedly connected with a movable plate 14. The two adjacent movable plates 14 are fitted together. The corresponding side of the two adjacent movable plates 14 is provided with a groove. The groove is fixedly connected with a magnet 18. The two adjacent magnets 18 are fitted together. The movable plate 14 has slots on the side away from the ring 1, and each slot has a limiting post 23 inserted into it. A connecting plate 22 is fixedly connected to the outer edge of the limiting post 23 near the ring 1. An adjusting plate 21 is fixedly connected to the outer edge of the limiting post 23 away from the ring 1. Each adjusting plate 21 has a connecting hole, through which a third threaded rod 36 passes. A nut 37 is threadedly connected to the outer edge of the third threaded rod 36 near its bottom. The nut 37 is located at the bottom of the adjusting plate 21. An N-shaped rod 35 is fixedly connected to the top of two adjacent third threaded rods 36. A vertical rod is fixedly connected to the bottom of each threaded cylinder 8, and a cylinder 10 is fixedly connected to the bottom of each vertical rod. An L-shaped rod 15 is fixedly connected to the end of each cylinder 10 away from the ring 1. The L-shaped rod 15 is fixedly connected to a movable ring 11 at the end away from the cylinder 10. The movable plate 14 is provided with a blind hole on the side away from the magnet 18. The movable ring 11 is sleeved on the outer edge of two adjacent movable plates 14. The outer edge of the movable ring 11 is provided with two limiting holes. The inner cavity of the limiting hole is provided with a rod 32. The end of the rod 32 away from the movable plate 14 is fixedly connected to a limiting plate 34. The end of the rod 32 away from the limiting plate 34 is located in the adjacent blind hole. The outer edge of the rod 32 is inclined on the side close to the ring 1. The outer edge of the rod 32 is sleeved with a spring 33. One end of the spring 33 is fixedly connected to the outer edge of the movable ring 11. The end of the spring 33 away from the movable ring 11 is fixedly connected to the side of the limiting plate 34. The side of the swing plate 13 away from the movable plate 14 is provided with inclined grooves. Several limiting rods 16 are fixedly connected to the outer edge of the first threaded rod 12 away from the ring 1. Three connecting rods 5 are inserted into the outer edge of the ring 1. A cross rod 6 is fixedly connected to the end of the connecting rod 5 away from the ring 1. A second threaded rod 30 is provided at the end of the connecting rod 5 away from the ring 1. A cross groove is provided at the end of the second threaded rod 30 near the ring 1. The cross rod 6 is located in the cross groove. A rotating disk 31 is fixedly connected to the end of the second threaded rod 30 away from the ring 1. A limiting plate 24 is provided at the end of the connecting rod 5 away from the ring 1. The center of the inner cavity of the limiting plate 24 is opened. The device is provided with a threaded hole, which is threaded to the outer edge of the second threaded rod 30. The side of the limiting plate 24 near the threaded cylinder 8 is fixedly connected to a second U-shaped plate 25. The inner cavity of the second U-shaped plate 25 is hinged to a cylinder 26. The inner side wall of the cylinder 26 is provided with two movable grooves. The inner cavity of the cylinder 26 is provided with a movable rod 27. The outer edge of the movable rod 27 is fixedly connected to two movable blocks 29. The movable blocks 29 are movably connected in adjacent movable grooves. The end of the movable rod 27 away from the limiting plate 24 is fixedly connected to a swing block 28. The outer edge of the swing block 28 is hinged to a first U-shaped plate 9. The first U-shaped plate 9 is fixedly connected to the outer edge of the threaded cylinder 8.

[0017] Working principle: When the device starts working, the telescopic fixed support device is placed inside the reinforcing cage. First, the cylinder 10 is activated. The cylinder 10 drives the movable ring 11 to move via the L-shaped rod 15. The movable ring 11 moves on the surface of the swing plate 13. Before the movable ring 11 contacts the movable plate 14, the movable plate 14 is in a vertically downward state. When the movable ring 11 moves on the surface of the swing plate 13, it will contact the movable plate 14. The movable ring 11 first pushes the movable plate 14 to move. The movable plate 14 drives the slider 20 to move via the connecting column 19. The slider 20 moves in the groove inside the swing plate 13. When the slider 20 moves to the end point of the groove, the movable ring 11 will drive the movable plate 14 to move. The movable plate 14 rotates around the connecting column 19 until the movable ring 11 is fitted onto the surface of the movable plate 14. As the movable ring 11 moves, the insertion rod 32 moves across the surface of the swing plate 13, and the spring 33 is in a stretched state. The limiting plate 34, in conjunction with the spring 33, limits the insertion rod 32. As the movable ring 11 moves, the insertion rod 32 gradually contacts the surface of the movable plate 14. The inclined groove on the swing plate 13 makes the movement of the insertion rod 32 on the surfaces of the swing plate 13 and the movable plate 14 smoother and more continuous. When the insertion rod 32 moves to the blind hole on the movable plate 14, it enters the blind hole, and the spring 33 returns to its default state. The insertion rod 32 completes its movement across the movable ring 11 and the movable plate 14. During the horizontal movement of the movable plate 14, the movable plate 14 will drive the adjusting plate 21, connecting plate 22, and limiting post 23 to move. The connecting plate 22 will first contact the steel rod on the surface of the reinforcing cage, and the steel rod will drive the connecting plate 22 to rotate. The connecting plate 22 rotates around the center of the limiting post 23, and the limiting post 23 drives the adjusting plate 21 to rotate. The adjusting plate 21 will move to the outside of the steel rod, thereby limiting the steel rod. Then, the N-shaped rod 35 and the third threaded rod 36 are taken out. The third threaded rod 36 is inserted through the adjusting plate 21, and then the nut 37 is rotated to the surface of the third threaded rod 36. The nut 37 is located at the bottom of the adjusting plate 21, so that the N-shaped rod 35 and the third threaded rod 36 cooperate with the nut 37 to align the adjacent... The two adjusting plates 21 are limited, thereby limiting the steel rod by the two adjacent adjusting plates 21, so that the device can be installed at the rebar cage. If the movement range of the movable plate 14 is limited and insufficient to make contact with the rebar cage, the limiting rod 16 is rotated. The limiting rod 16 drives the first threaded rod 12 to rotate. The first threaded rod 12 rotates and moves inside the threaded cylinder 8. The threaded cylinder 8 drives the connecting plate 17 and the swing plate 13 to move towards the rebar cage and starts the cylinder 10. The cylinder 10 drives the movable ring 11 to move through the L-shaped rod 15. The movable ring 11 drives the movable plate 14 to move through the insertion rod 32, so that the movable plate 14 makes contact with the rebar cage and completes the subsequent connection effect. If the angle of the threaded cylinder 8 needs to be limited, the second threaded rod 30 is rotated into the limiting plate 24 and moved so that the cross groove inside the second threaded rod 30 fits onto the surface of the cross rod 6. The limiting plate 24 limits the threaded cylinder 8 through the second threaded rod 30. Then, the limiting plate 24 limits the threaded cylinder 8 through the cylinder 26 and the movable rod 27. If the angle of the threaded cylinder 8 needs to be adjusted, the second threaded rod 30 is rotated. The second threaded rod 30 drives the limiting plate 24 to move through the threaded hole on the limiting plate 24. The limiting plate 24 drives the cylinder 26 to move through the second U-shaped plate 25. The cylinder 26 will swing. The cylinder 26 drives the movable rod 27 to swing. The movable rod 27 moves inside the cylinder 26. The movable rod 27 drives the movable block 29 to move. The movable rod 27 drives the threaded cylinder 8 to rotate through the first U-shaped plate 9. The threaded cylinder 8 drives the U-shaped block 7 to rotate. The U-shaped block 7 rotates around the center of the fixed column 3. When disassembly of the device is required, cylinder 10 is activated. Cylinder 10 drives the movable ring 11 to move towards the circular ring 1 via L-shaped rod 15. The movable ring 11 drives the movable plate 14 to move via insert rod 32. When insert rod 32 moves to the inclined groove on the swing plate 13, insert rod 32 will gradually move away from the blind hole on the movable plate 14 and move to the surface of the swing plate 13 as the movable ring 11 moves. The movable plate 14 loses its supporting and limiting effect and will swing downward. At this time, the limiting rod 16 is rotated, and the limiting rod 16 drives the first threaded rod 12 to rotate, disengaging the first threaded rod 12 from the inside of the threaded cylinder 8. The first threaded rod 12, the swing plate 13, and the movable plate 14 can then be disassembled. If, during the movement of the first threaded rod 12, the internal space of the reinforcing cage is too small to allow the first threaded rod 12 to completely detach from the threaded cylinder 8, the cylinder 10 moves the movable ring 11 to the surface of the threaded cylinder 8, and then adjusts the swing plate 13. The swing plate 13 swings through the hinge. After adjusting the swing plate 13 by 90 degrees, space can be reserved for the movement of the first threaded rod 12. Before the swing plate 13 swings, the N-type rod 35 and the third threaded rod 36 need to be removed from the inside of the adjusting plate 21. When the swing plate 13 swings, the swing plate 13 drives the movable plate 14 to swing through the slider 20 and the connecting column 19. The magnets 18 on the two adjacent movable plates 14 will move away from each other.

Claims

1. A lightweight, quick-disassembly rebar cage telescopic fixing support device, comprising a ring (1), characterized in that: Three fixing plates (2) are fixedly connected to the outer edge of the ring (1). Each fixing plate (2) is fitted with a U-shaped block (7) on its outer edge. Each U-shaped block (7) has a through hole at its top and bottom. Each fixing plate (2) is fixedly connected with a fixing post (3) at its top and bottom. The end of the fixing post (3) away from the fixing plate (2) passes through the adjacent through hole and is fixedly connected with a fixing plate (4). Each U-shaped block (7) away from the ring (1) is fixedly connected with a threaded cylinder (8). Each threaded cylinder (8) has a first threaded rod (12) threadedly connected to its inner cavity. Each first threaded rod (12) away from the ring (1) has a connecting plate (17) inserted into its end.

2. The quick-disassembly lightweight rebar cage telescopic fixing support device according to claim 1, characterized in that: Two swing plates (13) are provided on the side of the connecting plate (17) away from the ring (1). The outer edge of the swing plate (13) is provided with a hinge. The swing plate (13) is movably connected to the outer edge of the connecting plate (17) through the hinge. The side of the swing plate (13) away from the ring (1) is provided with a slot. The slot is provided with a sliding groove. The sliding groove is movably connected with a slider (20). A connecting post (19) is inserted into one side of the slider (20). The end of the connecting post (19) away from the slider (20) is fixedly connected with a movable plate (14). The two adjacent movable plates (14) are fitted together. The corresponding side of the two adjacent movable plates (14) is provided with a groove. A magnet (18) is fixedly connected in the groove. The two adjacent magnets (18) are fitted together.

3. The quick-disassembly lightweight rebar cage telescopic fixing support device according to claim 2, characterized in that: The movable plate (14) has a slot on the side away from the ring (1), and a limiting post (23) is inserted into the slot. A connecting plate (22) is fixedly connected to the side of the outer edge of the limiting post (23) near the ring (1). An adjusting plate (21) is fixedly connected to the side of the outer edge of the limiting post (23) away from the ring (1). A connecting hole is opened on the adjusting plate (21), and a third threaded rod (36) is inserted through the connecting hole. A nut (37) is threaded to the outer edge of the third threaded rod (36) near the bottom. The nut (37) is located at the bottom of the adjusting plate (21). An N-shaped rod (35) is fixedly connected to the top of two adjacent third threaded rods (36).

4. The quick-disassembly lightweight rebar cage telescopic fixing support device according to claim 3, characterized in that: Each of the threaded cylinders (8) has a vertical rod fixedly connected to its bottom. Each of the vertical rods has a cylinder (10) fixedly connected to its bottom end. Each of the cylinders (10) has an L-shaped rod (15) fixedly connected to its end away from the ring (1). Each of the L-shaped rods (15) has a movable ring (11) fixedly connected to its end away from the cylinder (10).

5. A quick-disassembly, lightweight rebar cage telescopic fixing support device according to claim 4, characterized in that: Each of the movable plates (14) has a blind hole on the side away from the magnet (18). The movable ring (11) is sleeved on the outer edge of two adjacent movable plates (14). Each of the outer edges of the movable ring (11) has two limiting holes. Each limiting hole has a rod (32) inserted through it. The end of the rod (32) away from the movable plate (14) is fixedly connected to a limiting plate (34). The end of the rod (32) away from the limiting plate (34) is located in the adjacent blind hole. The side of the outer edge of the rod (32) close to the ring (1) is inclined. Each of the outer edges of the rod (32) is sleeved with a spring (33). One end of the spring (33) is fixedly connected to the outer edge of the movable ring (11). The end of the spring (33) away from the movable ring (11) is fixedly connected to the side of the limiting plate (34).

6. The quick-disassembly lightweight rebar cage telescopic fixing support device according to claim 5, characterized in that: The oscillating plate (13) has a slanted groove on the side away from the movable plate (14), and several limiting rods (16) are fixedly connected to the outer edge of the first threaded rod (12) away from the ring (1).

7. A quick-detachable, lightweight rebar cage telescopic fixing support device according to claim 6, characterized in that: Three connecting rods (5) are inserted into the outer edge of the ring (1). A cross rod (6) is fixedly connected to the end of the connecting rod (5) away from the ring (1). A second threaded rod (30) is provided at the end of the connecting rod (5) away from the ring (1). A cross groove is opened at the end of the second threaded rod (30) close to the ring (1). The cross rod (6) is located in the cross groove. A rotating disk (31) is fixedly connected to the end of the second threaded rod (30) away from the ring (1).

8. A quick-detachable, lightweight rebar cage telescopic fixing support device according to claim 7, characterized in that: Each of the connecting rods (5) is provided with a limiting plate (24) at the end away from the ring (1). A threaded hole is provided at the center of the inner cavity of the limiting plate (24). The threaded hole is threaded to the outer edge of the second threaded rod (30). A second U-shaped plate (25) is fixedly connected to the side of the limiting plate (24) near the threaded cylinder (8). A cylinder (26) is hinged to the inner cavity of the second U-shaped plate (25). Two movable grooves are provided on the inner side wall of the cylinder (26). A movable rod (27) is provided in the inner cavity of the cylinder (26). Two movable blocks (29) are fixedly connected to the outer edge of the movable rod (27). The movable blocks (29) are movably connected in the adjacent movable grooves. A swing block (28) is fixedly connected to the end of the movable rod (27) away from the limiting plate (24). A first U-shaped plate (9) is hinged to the outer edge of the swing block (28). The first U-shaped plate (9) is fixedly connected to the outer edge of the threaded cylinder (8).

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