Hoisting fixture for bored pile reinforcement cage and hanging bar recovery system

Abstract

The utility model relates to the technical field of fixtures and hanging bars, in particular to a drilling pile reinforcement cage hoisting fixture and hanging bar recovery system, which comprises a fixing block, a hoisting tool, a hanging bar lowering device and a positioning frame, the lower end of the fixing block is fixedly connected with a hoisting hook, the hoisting tool comprises four hoisting plates I and eight hoisting lugs, and the hoisting plates I and the hoisting lugs are fixedly connected with the positioning frame. The four first lifting plates are fixedly connected in a square shape, and the eight lifting lugs are fixedly connected to the upper ends and the lower ends of the first lifting plates. According to the utility model, the hanging bar III and the corresponding main reinforcement of the reinforcement cage are connected and fixed by the straight thread sleeve through the eight connecting plates I on the hanging bar lowering device, and the top of the hanging bar III is fixed on the hanging bar lowering device in a manner of the straight thread sleeve and the base plate; the top straight thread sleeve and the third hanging bars can be loosened immediately through a pipe wrench, then the third hanging bars are pulled out one by one, and therefore the purpose of recycling the third hanging bars is achieved, and the recycled third hanging bars can be reused after being adjusted and rectified properly.

Description

Technical Field

[0001] This utility model relates to the field of clamps and lifting bars, and in particular to a clamp for hoisting a drilled pile steel cage and a lifting bar recovery system. Background Technology

[0002] When constructing large infrastructure projects, it is usually necessary to drive very deep piles into the ground to support buildings or large bridges. This step requires placing a steel cage into the pile hole and then pouring concrete into it to ensure the stability of the bottom pile.

[0003] Traditional methods for installing steel cages for large-diameter pile foundations suffer from time-consuming installation, inaccurate positioning, and the inability to retrieve the lifting bars.

[0004] Therefore, in response to the problems of long installation time, inaccurate positioning, and inability to recover lifting bars in the traditional large-diameter pile foundation reinforcement cage installation method, a drilling pile reinforcement cage hoisting clamp and lifting bar recovery system can be designed, which saves construction time, reduces material waste, and greatly improves construction efficiency. Utility Model Content

[0005] To overcome the problems of traditional large-diameter pile foundation reinforcement cage installation methods, such as long installation time, inaccurate positioning, and inability to recover lifting bars, this utility model proposes a drilling pile reinforcement cage hoisting clamp and lifting bar recovery system.

[0006] The technical solution of this utility model is as follows: a hoisting clamp and lifting bar recovery system for bored pile reinforcement cages, including a fixing block, a hoisting device, a lifting bar lowering device, and a positioning frame. A hook is fixedly connected to the lower end of the fixing block. The hoisting device includes four lifting plates and eight lifting lugs. The four lifting plates are fixedly connected in a U-shape, and the eight lifting lugs are fixedly connected to the upper and lower ends of the lifting plates. The lifting bar lowering device includes two lifting plates, two lifting plates, four hoisting pins, multiple connecting plates, eight pads, and eight straight threaded sleeves. The two lifting plates are symmetrically fixedly connected to the two lifting plates. At one end close to each other, four lifting pins are fixedly connected to the upper ends of lifting plate two and lifting plate three, and multiple connecting plates one are fixedly connected to the upper and lower ends of lifting plate two and lifting plate three. Each pad is set on the corresponding connecting plate one, and each straight threaded sleeve is set on the corresponding pad. The positioning frame includes two positioning plates one, two positioning plates two, eight insert plates and four pin plates. The two positioning plates two are symmetrically fixedly connected to the two positioning plates one at the end close to each other. Multiple insert plates are fixed on both sides of positioning plates one and two. The four pin plates are set inside the two corresponding insert plates.

[0007] Preferably, the lifting device further includes four support plates and two fixing plates. The four support plates are all fixedly connected to the inner side of the lifting plate, and the ends of the four support plates that are close to each other are fixedly connected. The two fixing plates are fixedly connected to the upper and lower ends of the four support plates.

[0008] Preferably, the suspension rod lowering device further includes multiple connecting plates 2 and four supporting plates 2. The multiple connecting plates 2 are symmetrically fixed at the upper and lower ends of the suspension plate 2, and the four supporting plates 2 are all fixedly connected to the inner sides of the suspension plate 2 and the suspension plate 3.

[0009] Preferably, the positioning frame further includes four connecting plates three, which are symmetrically and fixedly connected to the inner sides of the positioning plate one and the positioning plate two.

[0010] Preferably, the hook and the lifting device are connected by a lifting rod one, the lifting device and the lifting rod lowering device are connected by a lifting rod two, and the lifting rod lowering device and the steel cage are connected by a lifting rod three.

[0011] Preferably, the hook connects the lifting module via four lifting rods.

[0012] As a preferred embodiment, both the first hanging plate and the first support plate are made of 1960mm 25a I-beams, the round holes of the lifting lugs are set to 25mm, and the first fixing plate is made of 300*300mm reinforced steel plate. The first fixing plate is welded to the upper and lower ends of the first support plate. The first support plate can be evenly stressed during hoisting to prevent the first hanging plate from deforming.

[0013] Preferably, each of the second and third lifting plates is composed of two 20a I-beams with a 5cm gap between them. The lifting pin has holes on its surface for connecting the second lifting rod. The connecting plate is made of 250mm*250mm*10mm steel plate, and each connecting plate has a through hole on its upper surface. The third lifting rod is connected to the lower end of the lifting rod lowering device through the 5cm gap and to the straight threaded sleeve through the connecting plate and the pad.

[0014] Preferably, the steel cage can be temporarily fixed to the positioning module by four pin plates, thereby combining the two sets of steel cages.

[0015] A hoisting clamp and lifting bar recovery system for bored pile reinforcement cages includes a hoisting module, a hoisting tool module, a lifting bar lowering module, and a positioning module, wherein:

[0016] Lifting module: Used to connect the lifting module and vertically suspend the entire device and the steel cage in mid-air before lowering it down;

[0017] Lifting Module: Used to connect to the lifting rod lowering module;

[0018] The lifting rod lowering module is used to connect to and lower the reinforcing cage.

[0019] Positioning module: used to temporarily fix the steel cage, and then connect the steel cage sections one by one and lower it down.

[0020] The beneficial effects of this utility model are:

[0021] 1. The device is easy to move, reusable, and saves materials. After the underwater concrete of the pile foundation is poured, pipe wrenches can be used to loosen the top straight threaded sleeve and the third lifting bar immediately, and then the third lifting bar can be pulled out one by one to achieve the purpose of recovering the third lifting bar. The recovered third lifting bar can be reused after appropriate adjustment and correction.

[0022] 2. The device can ensure accurate hoisting, lowering and positioning of the steel cage, and the construction process is relatively convenient, safe and quick.

[0023] 3. The system has a simple structure and uniform and clear stress distribution. Attached Figure Description

[0024] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention.

[0025] Figure 2 The diagram shown is a schematic representation of the lifting device structure of this utility model.

[0026] Figure 3 The diagram shown is a structural schematic of the suspension rod lowering device of this utility model;

[0027] Figure 4 The diagram shown is a schematic representation of the positioning frame structure of this utility model.

[0028] Figure 5 The diagram shown illustrates the connection structure between the hook and the lifting device of this utility model.

[0029] Figure 6 The diagram shown is a schematic representation of the connection structure between the lifting device and the lifting rod lowering device of this utility model.

[0030] Figure 7 The diagram shown is a schematic representation of the structural design of this utility model.

[0031] Figure 8 The diagram shown is a schematic representation of the workflow of this utility model.

[0032] Explanation of reference numerals in the attached drawings: 1. Fixing block; 2. Lifting plate one; 3. Lifting lug; 4. Support plate one; 5. Fixing plate one; 6. Lifting plate two; 7. Lifting plate three; 8. Lifting pin; 9. Connecting plate one; 10. Pad plate; 11. Straight threaded sleeve; 12. Connecting plate two; 13. Support plate two; 14. Positioning plate one; 15. Positioning plate two; 16. Connecting plate three; 17. Insert plate; 18. Insert pin plate; 19. Lifting rod one; 20. Lifting rod two; 21. Lifting rod three; 22. Lifting hook. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0034] Please see Figures 1-7 This utility model provides an embodiment: a hoisting clamp and retraction system for bored pile reinforcement cages, including a fixing block 1. The system is characterized by further including a hoisting device, a retraction lowering device, and a positioning frame. A hook 22 is fixedly connected to the lower end of the fixing block 1. The hoisting device includes four lifting plates 2 and eight lifting lugs 3. The four lifting plates 2 are fixedly connected in a U-shape, and the eight lifting lugs 3 are fixedly connected to the upper and lower ends of the lifting plates 2. The retraction lowering device includes two lifting plates 6, two lifting plates 7, four hoisting pins 8, multiple connecting plates 9, eight pads 10, and eight straight threaded sleeves 11. The two lifting plates 3 7 are symmetrically fixedly connected to the two lifting plates 2 6 close to each other. At one end, four lifting pins 8 are fixedly connected to the upper ends of the second lifting plate 6 and the third lifting plate 7. Multiple connecting plates 9 are fixedly connected to the upper and lower ends of the second lifting plate 6 and the third lifting plate 7. Each pad 10 is set on the corresponding connecting plate 9, and each straight threaded sleeve 11 is set on the corresponding pad 10. The positioning frame includes two positioning plates 14, two positioning plates 25, eight insert plates 17 and four pin plates 18. The two positioning plates 25 are symmetrically fixedly connected to the two positioning plates 14 at their close ends. Multiple insert plates 17 are fixed on both sides of the positioning plates 14 and the positioning plates 25. The four pin plates 18 are set inside the corresponding two insert plates 17.

[0035] Preferably, the lifting device further includes four support plates 4 and two fixing plates 5. The four support plates 4 are all fixedly connected to the inner side of the lifting plate 2. The ends of the four support plates 4 that are close to each other are fixedly connected. The two fixing plates 5 are fixedly connected to the upper and lower ends of the four support plates 4.

[0036] Preferably, the suspension rod lowering device further includes multiple connecting plates 12 and four supporting plates 13. The multiple connecting plates 12 are symmetrically fixed at the upper and lower ends of the suspension plate 6, and the four supporting plates 13 are fixedly connected to the inner sides of the suspension plate 6 and the suspension plate 7.

[0037] Preferably, the positioning frame further includes four connecting plates 16, which are symmetrically and fixedly connected to the inner sides of the positioning plate 14 and the positioning plate 25.

[0038] Preferably, the hook 22 is connected to the lifting device via lifting rod 19, the lifting device is connected to the lifting rod lowering device via lifting rod 20, and the lifting rod lowering device is connected to the reinforcing cage via lifting rod 31.

[0039] Preferably, the hook 22 connects the lifting module via four lifting rods 19.

[0040] As a preferred embodiment, both the lifting plate 2 and the support plate 4 are made of 1960mm 25a I-beams, the round holes of the lifting lugs 3 are set to 25mm, and the fixing plate 5 is made of 300*300mm reinforced steel plate. The fixing plate 5 is welded to the upper and lower ends of the support plate 4, so that the support plate 4 can be evenly stressed during hoisting and prevent the lifting plate 2 from deforming.

[0041] Preferably, each of the second and third lifting plates 6 and 7 is composed of two 20a I-beams with a 5cm gap between them. The lifting pin 8 has holes on its surface for connecting the second lifting rod 20. The connecting plate 9 is made of 250mm*250mm*10mm steel plate. The upper surface of each connecting plate 9 has a through hole. The third lifting rod 21 passes through the 5cm gap from the lower end of the lifting rod lowering module and is threadedly connected to the straight threaded sleeve 11 through the connecting plate 9, the pad 10, and the straight threaded sleeve 11.

[0042] Preferably, the steel cage can be temporarily fixed to the positioning module by four pin plates 18, thereby combining the two sets of steel cages.

[0043] A hoisting clamp and lifting bar recovery system for bored pile reinforcement cages includes a hoisting module, a hoisting tool module, a lifting bar lowering module, and a positioning module, wherein:

[0044] Lifting module: Used to connect the lifting module and vertically suspend the entire device and the steel cage in mid-air before lowering it down;

[0045] Lifting Module: Used to connect to the lifting rod lowering module;

[0046] The lifting rod lowering module is used to connect to and lower the reinforcing cage.

[0047] Positioning module: used to temporarily fix the steel cage, and then connect the steel cage sections one by one and lower it down.

[0048] Please see Figure 8First, a large-tonnage crane is used to hoist the integral steel cage to the top reinforcing bar position at the borehole opening. The steel cage is temporarily fixed by four pin plates 18 on the positioning frame. Then, the hoisting bar lowering device is installed to assist in the installation of the hoisting bars. The hoisting bar 21 is connected and fixed to the corresponding main reinforcing bar of the steel cage by straight threaded sleeves 11 through eight connecting plates of the hoisting bar lowering device. The top is fixed to the hoisting bar lowering device by straight threaded sleeves 11 and pads 10. Finally, the steel cage is slowly lowered to the borehole positioning frame. Before fixing, an inspection is performed. Check whether the reinforcing cage is centered and whether the bolts at the top of the lifting bars are evenly tightened. The lengths of lifting bars 19, 20, and 31 are determined by accurately calculating parameters such as the platform orifice elevation, positioning frame height, lifting bar lowering device height, and the top elevation of the reinforcing cage. After the underwater concrete pouring of the pile foundation is completed, immediately use pipe wrenches to loosen the top straight threaded sleeve 11 and lifting bar 31, and then pull out lifting bars 321 one by one to achieve the purpose of recovering lifting bars 321. The recovered lifting bars 321 can be reused after appropriate adjustment and correction.

Claims

1. A hoisting clamp for a bored pile reinforcement cage, comprising a fixing block (1), characterized in that: It also includes a lifting device, a lifting rod lowering device, and a positioning frame. The lower end of the fixed block (1) is fixedly connected to a hook (22). The lifting device includes four lifting plates (2) and eight lifting lugs (3). The four lifting plates (2) are fixedly connected in a U-shape. The eight lifting lugs (3) are all fixedly connected to the upper and lower ends of the lifting plates (2). The lifting rod lowering device includes two lifting plates (6), two lifting plates (7), four lifting pins (8), multiple connecting plates (9), eight pads (10), and eight straight threaded sleeves (11). The two lifting plates (7) are symmetrically fixedly connected to the two lifting plates (6) at the ends that are close to each other. The four lifting pins (8) are all fixedly connected to the two lifting plates (6) and the two lifting plates (7). At the upper end of the ), multiple connecting plates (9) are fixedly connected to the upper and lower ends of the hanging plate (6) and the hanging plate (7). Each pad (10) is set on the corresponding connecting plate (9), and each straight threaded sleeve (11) is set on the corresponding pad (10). The positioning frame includes two positioning plates (14), two positioning plates (15), eight insert plates (17) and four pin plates (18). The two positioning plates (15) are symmetrically fixedly connected to the two positioning plates (14) at the ends close to each other. Multiple insert plates (17) are fixed on both sides of the positioning plates (14) and the positioning plates (15). The four pin plates (18) are set inside the corresponding two insert plates (17).

2. The hoisting clamp for the reinforcing cage of a bored pile according to claim 1, characterized in that: The lifting device also includes four support plates (4) and two fixing plates (5). The four support plates (4) are all fixedly connected to the inner side of the lifting plate (2). The four support plates (4) are fixedly connected at their close ends. The two fixing plates (5) are fixedly connected to the upper and lower ends of the four support plates (4).

3. The hoisting clamp for the reinforcing cage of a bored pile according to claim 1, characterized in that: The suspension rod lowering device also includes multiple connecting plates (12) and four supporting plates (13). The multiple connecting plates (12) are symmetrically fixed at the upper and lower ends of the suspension plate (6), and the four supporting plates (13) are fixedly connected to the inner sides of the suspension plate (6) and the suspension plate (7).

4. The hoisting clamp for the reinforcing cage of a bored pile according to claim 1, characterized in that: The positioning frame also includes four connecting plates (16), which are symmetrically fixedly connected to the inner sides of the positioning plate (14) and the positioning plate (15).

5. The hoisting clamp for the reinforcing cage of a bored pile according to claim 1, characterized in that: The hook (22) is connected to the lifting device via lifting rod one (19), the lifting device is connected to the lifting rod lowering device via lifting rod two (20), and the lifting rod lowering device is connected to the steel cage via lifting rod three (21).

6. The hoisting clamp for a bored pile reinforcement cage according to claim 5, characterized in that: The hook (22) is connected to the lifting device by four lifting rods (19).

7. The hoisting clamp for the reinforcing cage of bored piles according to claim 2, characterized in that: Both the first hanging plate (2) and the first support plate (4) are made of 1960mm 25a I-beams. The round hole of the lifting lug (3) is set to 25mm. The first fixing plate (5) is made of 300*300mm reinforced steel plate. The first fixing plate (5) is welded to the upper and lower ends of the first support plate (4). The first support plate (4) can be evenly stressed during hoisting to prevent the first hanging plate (2) from deforming.

8. A hoisting clamp for a bored pile reinforcement cage according to claim 5, characterized in that: Each of the second (6) and third (7) of the lifting plate is composed of two 20a I-beams, with a 5cm gap between the two 20a I-beams. The lifting pin (8) has a hole on its surface for connecting the second (20) of the lifting rod. The first (9) of the connecting plate is made of 250mm*250mm*10mm steel plate. The upper surface of each first (9) of the connecting plate has a through hole. The third (21) of the lifting rod is connected to the lower end of the lifting rod lowering device through a 5cm gap, and is threaded to the first (9) of the connecting plate, the pad (10) and the straight threaded sleeve (11).

9. A hoisting clamp for a bored pile reinforcement cage according to claim 1, characterized in that: The steel cage can be temporarily fixed to the positioning frame by four pin plates (18), thereby combining the two sets of steel cages.

10. A lifting bar recovery system for a bored pile reinforcement cage hoisting fixture, based on any one of claims 1-9, characterized in that, It includes a hoisting module, a lifting tool module, a lifting rod lowering module, and a positioning module, among which: Lifting module: Used to connect the lifting module and vertically suspend the entire device and the steel cage in mid-air before lowering it down; Lifting Module: Used to connect to the lifting rod lowering module; The lifting bar lowering module is used to connect to and lower the reinforcing cage. Positioning module: used to temporarily fix the steel cage, and then connect the steel cage sections one by one and lower it down.

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