Hanging bracket device for lowering reinforcement cage of large-diameter pile foundation

Abstract

The utility model relates to the technical field of building construction, in particular to a large-diameter pile foundation lowering reinforcement cage hanging bracket device which comprises a base of a square structure, channel steel seats are welded to the four side faces of the base respectively, and a supporting arm extending outwards is assembled in each channel steel seat. A bottom plate is fixedly welded to the upper side of the base, a third lifting lug is fixedly arranged on the bottom face, close to the outer end, of the supporting arm, a first lifting steel cable is connected to the third lifting lug, and a lifting hook is connected to the lower end of the first lifting steel cable. According to the utility model, the reinforcement cage is simultaneously hoisted from four directions through the four groups of hoisting hooks, so that the stability of the reinforcement cage in the hoisting process can be ensured, and the reinforcement cage can be effectively prevented from shaking, inclining or twisting in the hoisting process, thereby improving the hoisting accuracy and safety.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a hanger device for lowering a steel cage for a large-diameter pile foundation. Background Art

[0002] A foundation pile is a single pile in a pile group foundation. A pile group foundation refers to a pile foundation consisting of two or more rows of piles. A pile foundation is a foundation composed of piles and a cap connected to the top of the pile. If the pile body is completely buried in the soil and the bottom of the cap is in contact with the soil, it is called a low-cap pile foundation; if the upper part of the pile body is exposed to the ground and the bottom of the cap is above the ground, it is called a high-cap pile foundation. Building pile foundations are usually low-cap pile foundations. Foundation piles are widely used in high-rise buildings, ports, bridges and other projects. With the improvement of production levels and the development of science and technology, the types, processes, design theories, calculation methods and application scope of pile foundations have greatly developed, forming a modern foundation engineering system. In some cases, the use of pile foundations can greatly reduce the workload and material consumption on the construction site.

[0003] During the construction of large-diameter pile foundation projects, the lowering of steel cages is a crucial step. In existing construction, special hangers are usually used in conjunction with lifting equipment to hang steel cages. However, the existing hanger connection structure is relatively simple. Due to the heavy weight and long length of the steel cage, the steel cage is prone to unstable phenomena such as shaking and twisting during the lifting process, which brings great difficulties to the construction operation and also increases the safety risks at the construction site. In addition, most existing hangers are integral structures with large structural volumes, which are not convenient for transportation and carrying. Therefore, the development of a new type of hanger device for lowering steel cages for large-diameter pile foundations is of great significance for improving construction efficiency, ensuring construction quality and safety. Utility Model Content

[0004] In view of the existing deficiencies, the utility model provides a large-diameter pile foundation lowering steel cage hanger device, which solves the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The top end of the lifting link is connected with the lifting link of the lifting link, and the lifting link is connected with the lifting link of the lifting link by a spring.

[0007] Furthermore, a through slot is provided at the bottom of the lifting hook, and the lifting hook is in a Y-shaped structure.

[0008] Furthermore, reinforcing ribs are welded between two adjacent groups of the channel steel seats.

[0009] Furthermore, a bolt seat is fixedly provided on the upper side of the channel steel seat, and the bolt seat is located outside the pin shaft. A long bolt is inserted into the bolt seat, and a nut is installed at the outer end of the long bolt.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. This utility model uses four sets of lifting hooks to simultaneously lift the steel cage from four directions, ensuring the stability of the steel cage during the lifting process. This multi-directional lifting method can effectively prevent the steel cage from shaking, tilting, or twisting during the lifting process, thereby improving the accuracy and safety of the lifting. At the same time, the four sets of lifting hooks jointly bear the weight of the steel cage, making the tension on each lifting hook more uniform, avoiding damage or deformation of the lifting hook caused by excessive force at a single point.

[0012] 2. The utility model adopts a foldable and retractable structure. The four groups of arms can be flipped and folded by pins, which greatly reduces the overall structure of the hanger and facilitates the storage and transportation of the hanger. The folded hanger is more compact and easy to carry and operate. The operator can move and deploy the hanger more easily, thereby improving work efficiency and convenience of use.

[0013] 3. In the utility model, a through slot is provided at the bottom of the lifting hook, and the lifting hook is in a Y-shaped structure. The slot allows the lifting hook to be hooked on the node on the steel cage, ensuring that the contact point between the lifting hook and the steel cage is more stable, reducing the possibility of shaking and twisting. At the same time, the slot design enables the lifting hook to better "bite" the steel cage during the lifting process, thereby increasing stability during the lifting process.

[0014] 4. In this utility model, a bolt seat is fixed to the upper side of the channel steel base. The bolt seat is located outside the pin shaft. A long bolt is inserted into the bolt seat, and a nut is installed on the outer end of the long bolt. The combination of the bolt seat, long bolt, and nut provides additional fixation and support between the channel steel base and the support arm. It can limit and fix the support arm from the top during lifting, effectively preventing the support arm from rotating during the lifting process, thereby ensuring the stability of the lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a front view of the utility model.

[0017] Figure 3 It is a schematic diagram of the local structure of the utility model.

[0018] Figure 4 It is a structural schematic diagram of the support arm and the channel steel seat in the utility model.

[0019] Figure 5 This is a schematic diagram of the partially disassembled structure of the utility model.

[0020] Figure 6 It is a structural schematic diagram of the lifting hook in the utility model.

[0021] Figure 7 This is a schematic diagram of the utility model in a folded and contracted state.

[0022] Figure 8 This is a schematic diagram of the state of the utility model when hoisting the steel cage.

[0023] In the figure: 1. Support arm; 2. First lifting cable; 3. Lifting hook; 31. Notch; 4. Reinforcement plate; 5. Pull rod; 6. Lifting cable; 7. Second lifting cable; 8. Top plate; 9. First lifting eye; 10. Second lifting eye; 11. Third lifting eye; 12. Channel steel seat; 13. Long bolt; 14. Pin shaft; 15. Bolt seat; 16. Bottom plate; 17. Base. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example:

[0026] like Figures 1 to 8 As shown, a large-diameter pile foundation lowering steel cage hanger device includes a square-structured base 17, with channel steel seats 12 welded to the four sides of the base 17, and each channel steel seat 12 is equipped with an outwardly extending support arm 1 inside. The end of the support arm 1 located inside the channel steel seat 12 is rotatably connected to the channel steel seat 12 through a pin 14. A bottom plate 16 is welded and fixed to the upper side of the base 17, and four groups of channel steel seats 12 are welded to the bottom plate 16. A third lifting lug 11 is fixed to the bottom surface of the support arm 1 near the outer end, and a first lifting cable 2 is connected to the third lifting lug 11. The lower end of the first lifting cable 2 is connected to a lifting hook 3. The steel cage is lifted from four directions simultaneously by four groups of lifting hooks 3, which can ensure the stability of the steel cage during the lifting process. This multi-directional lifting method can effectively prevent the steel cage from shaking, tilting or twisting during the lifting process, thereby improving the accuracy and safety of the lifting. The group of lifting hooks 3 jointly bears the weight of the steel cage, making the tension borne by each lifting hook 3 more uniform, avoiding damage or deformation of the lifting hook 3 caused by excessive force at a single point. At the same time, this design also improves the load-bearing capacity of the entire lifting system, enabling it to lift heavier and larger steel cages. A pull rod 5 is welded to the bottom plate 16, and a top plate 8 is fixed on the upper end of the pull rod 5. A lifting cable 6 with an arc structure is fixed on the upper side of the top plate 8. Four groups of first lifting ears 9 are symmetrically provided on the bottom surface of the top plate 8. The top surfaces of the four groups of support arms 1 are all fixed with second lifting ears 10 near the center. The second lifting ears 10 are connected to the first lifting ears 9 through the second lifting steel cable 7. This design solves the problem that the existing hanger connection structure is relatively simple. Due to the heavy weight and long length of the steel cage, the steel cage is prone to unstable phenomena such as shaking and twisting during the lifting process, which brings great difficulties to the construction operation and also increases the safety risks at the construction site. In addition, most of the existing hangers are integral structures with large structural volume, which is not convenient for transportation and carrying.

[0027] In this embodiment, a through slot 31 is provided at the bottom of the lifting hook 3, and the lifting hook 3 is in a Y-shaped structure. The design enables the lifting hook 3 to be hooked on the node on the steel cage through the set slot 31, ensuring that the contact point between the lifting hook 3 and the steel cage is more stable, reducing the possibility of shaking and twisting. At the same time, the design of the slot 31 enables the lifting hook 3 to better "bite" the steel cage during the lifting process, thereby increasing the stability during the lifting process.

[0028] In this embodiment, reinforcing ribs 4 are welded between two adjacent sets of channel steel seats 12. These ribs 4 increase the connection strength between the channel steel seats 12, making the entire hanger assembly more stable and less susceptible to deformation or damage when subjected to heavy loads. Furthermore, welding these ribs 4 significantly increases the hanger assembly's load-bearing capacity, enabling it to safely hoist heavier steel cages and meet the diverse needs of construction sites. Furthermore, the ribs 4 disperse the stress generated during the hoisting process, preventing structural damage caused by stress concentration, thereby extending the hanger assembly's service life.

[0029] In this embodiment, a bolt seat 15 is fixed to the upper side of the channel steel base 12, located outside the pin 14. A long bolt 13 is inserted into the bolt seat 15, and a nut is mounted on the outer end of the long bolt 13. The combination of the bolt seat 15, the long bolt 13, and the nut provides additional fixation and support between the channel steel base 12 and the support arm 1. During hoisting, the support arm 1 can be fixed from above, effectively preventing the support arm 1 from rotating during the hoisting process, thereby ensuring the stability of the hoisting.

[0030] The working principle of the large diameter pile foundation lowering steel cage hanger device:

[0031] In actual use, the hanger is first connected to the hook of the external lifting equipment via the lifting cable 6. The long bolts 13 on the support arm 1 are removed, and the four groups of support arms 1 are unfolded and placed in a horizontal position. The long bolts 13 are then inserted into the bolt seats 15 and tightened with nuts. The combination of the bolt seats 15, long bolts 13, and nuts provides additional fixation and support for the support arms 1, effectively preventing the support arms 1 from rotating during lifting, thereby ensuring the stability of the lifting. The four groups of lifting hooks 3 are then buckled onto the four directions of the steel cage and hooked onto the nodes on the steel cage through the notches 31. The four groups of lifting hooks 3 share the weight of the steel cage, making the tension on each lifting hook 3 more uniform. This avoids damage or deformation of the lifting hooks 3 caused by excessive force at a single point, thereby improving the load-bearing capacity of the entire lifting system. At the same time, the through notches 31 and Y-shaped structure at the bottom of the hooks allow the lifting hooks 3 to be hooked onto the nodes on the steel cage, increasing stability during the lifting process. The design of the notches 31 also allows the lifting hooks 3 to better "engage" the rebar cage, reducing the possibility of shaking and twisting. The lifting equipment is then slowly raised, gradually lifting the rebar cage off the ground and lowering it into the grouting hole. Using four sets of arms 1 and lifting hooks 3, the device simultaneously lifts the rebar cage from four directions. This multi-directional lifting method ensures the stability of the rebar cage during the lifting process, effectively preventing shaking, tilting, or twisting.

[0032] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A large diameter pile foundation lowering steel cage hanger device, comprising a square structure base (17), characterized in that: Channel steel seats (12) are welded on the four sides of the base (17), and each channel steel seat (12) is equipped with an outwardly extending support arm (1), and one end of the support arm (1) located inside the channel steel seat (12) is rotatably connected to the channel steel seat (12) through a pin shaft (14). A bottom plate (16) is welded and fixed on the upper side of the base (17), and the four groups of channel steel seats (12) are welded to the bottom plate (16). A third lifting lug (11) is fixed on the bottom surface of the support arm (1) near the outer end, and the third lifting lug (11) A first lifting steel cable (2) is connected to the top, and a lifting hook (3) is connected to the lower end of the first lifting steel cable (2). A pull rod (5) is welded on the bottom plate (16). A top plate (8) is fixed to the upper end of the pull rod (5). An arc-shaped lifting cable (6) is fixed to the upper side of the top plate (8). Four groups of first lifting ears (9) are symmetrically provided on the bottom surface of the top plate (8). A second lifting ear (10) is fixed near the center of the top surface of the four groups of support arms (1). The second lifting ear (10) is connected to the first lifting ear (9) through a second lifting steel cable (7).

2. The large diameter pile foundation lowering steel cage hanger device according to claim 1 is characterized in that: A through notch (31) is provided at the bottom of the lifting hook (3), and the lifting hook (3) is in a Y-shaped structure.

3. The large diameter pile foundation lowering steel cage hanger device according to claim 1 is characterized in that: Reinforcement ribs (4) are welded between two adjacent groups of channel steel seats (12).

4. The large diameter pile foundation lowering steel cage hanger device according to claim 1 is characterized in that: A bolt seat (15) is fixedly provided on the upper side of the channel steel seat (12), and the bolt seat (15) is located outside the pin shaft (14). A long bolt (13) is inserted into the bolt seat (15), and a nut is installed at the outer end of the long bolt (13).

Images