A lifting tool for installing a three-limb steel pipe lattice column pier

Abstract

This utility model discloses a lifting device for installing a three-limb steel pipe lattice column pier, comprising: connecting lugs welded to the three corners of the upper structure; the lower ends of two connecting lugs are connected to the lower structure's lifting lugs via connecting pins; the upper ends of the connecting lugs have through holes for connecting wire rope shackles, which are then connected to a hoisting device; winches are installed along the three sides of the lower structure, and a patterned steel plate is placed at the center of the lower structure. This lifting device, by setting up the lower structure, can be quickly connected to the pier structure via flange high-strength bolts. Through the upper structure, the hoisting wire rope shackles can be easily installed on the upper structure's lifting lugs. By setting up winches and matching wire ropes, the lifting of the personnel work platform can be easily achieved. Compared to traditional lug-type lifting devices and additional personnel ladders, this device is not only more convenient to use but also safer and more reliable in operation.

Description

Technical Field

[0001] This utility model relates to the field of bridge steel structure installation technology, and in particular to a lifting tool for installing a three-limb steel pipe lattice column pier. Background Technology

[0002] Currently, in the field of bridge steel structure construction, bridge structure types are becoming increasingly innovative, with steel-concrete composite structures and steel-concrete composite piers being widely used in projects. However, in engineering hoisting construction, traditional lug-type lifting lugs are no longer suitable for large, complex, and irregularly shaped spatial steel structure piers due to shortcomings in load-bearing capacity, safety, stability, and ease of operation.

[0003] Therefore, it is necessary to propose a lifting device for installing a three-limb steel pipe lattice column pier, which has a lifting function and facilitates the raising and lowering of the personnel work platform, in order to solve the above-mentioned problems existing in the prior art. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing ear plate type lifting lug structure has a large amount of repetitive installation work, and it is difficult to ensure the stability and stress safety of the lifting of heavy and large structural objects, and there is no lifting function. Therefore, a new lifting tool for the installation of three-limb steel pipe lattice column pier is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides a lifting tool for installing a three-limb steel pipe lattice column pier, including: an upper structure, a lower structure, a connecting pin, high-strength bolts, and a winch. Both the upper structure and the lower structure are triangular structures.

[0006] Connecting lugs are welded to the three corners of the upper structure. The lower ends of the two connecting lugs are connected to the lower structure's lifting lugs via connecting pins. The upper ends of the connecting lugs have through holes through which the shackles of the wire rope are connected, and the wire rope is connected to the crane equipment.

[0007] The lower structure is equipped with winches on three sides for lifting and lowering the personnel operating platform. A patterned steel plate is set in the center of the lower structure to facilitate personnel to carry out construction on it.

[0008] In a preferred embodiment of this solution, the upper structure includes a connecting channel steel and three upper structure main connecting H-beams connected end to end. One end of the connecting channel steel is vertically connected to one upper structure main connecting H-beam, and the other end is connected to the connection point of the other two upper structure main connecting H-beams.

[0009] Furthermore, the upper structure also includes double-jointed connecting channel steel, which consists of two symmetrically arranged inclined channel steels. One end of the inclined channel steel is connected to the middle of the connecting channel steel, and the other end is connected to the connection point of the two upper structure main connecting H-beams on one side of the connecting channel steel.

[0010] Furthermore, the connecting lugs are welded to the connection points of the two main connecting H-beams of the upper structure, and a connecting lug reinforcement plate is welded to the outside of the connecting lugs.

[0011] In a preferred embodiment of this solution, the lower structure includes a first double-jointed connecting channel steel, a second double-jointed connecting channel steel, a third double-jointed connecting channel steel, and three lower structure main connecting H-beams connected end to end. One end of each of the three double-jointed connecting channel steels is vertically connected to the middle of one lower structure main connecting H-beam, and the other end is connected to the connection point of the other two lower structure main connecting H-beams.

[0012] Furthermore, short channel steel and long channel steel for connecting the lower structure are provided at intervals between the main connecting H-beams of the lower structure.

[0013] Furthermore, at the junction of the two lower structure main connecting H-beams, the lower structure lifting lugs are connected to the flange by welding. The upper end of the lower structure lifting lugs is provided with a lower structure lifting lug reinforcement plate, and the lower end is provided with a first lifting lug stiffening plate and a second lifting lug stiffening plate at intervals. The flange is connected to the steel pipe pier by high-strength bolts.

[0014] Furthermore, a lower structure winch support channel steel is provided on the main connecting H-beam of the lower structure, and the winch is installed on the lower structure winch support channel steel.

[0015] Furthermore, the winch is connected to the lifting personnel work platform via a steel wire rope.

[0016] Implementing this utility model has the following beneficial effects:

[0017] This lifting device for installing three-limb steel pipe lattice column piers can be quickly connected to the pier structure via flange high-strength bolts through the lower structure. Through the upper structure, the crane's wire rope shackle can be easily installed on the upper structure's lifting lug plate. With the addition of a winch and matching wire rope, the lifting and lowering of the personnel work platform can be easily achieved. Compared with traditional lug-type lifting devices and additional personnel ladders, it is not only more convenient to use, but also safer and more reliable in operation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram showing the connection between the lifting equipment used for installing steel pipe lattice column piers and the steel wire ropes of the pier columns and crane equipment.

[0020] Figure 2 A schematic diagram of the upper structure elevation for the lifting equipment used in the installation of steel pipe lattice column piers;

[0021] Figure 3 A schematic diagram of the upper structure of the lifting equipment used for installing steel pipe lattice column piers;

[0022] Figure 4 A schematic diagram of the lower structure elevation for the lifting equipment used in the installation of steel pipe lattice column piers;

[0023] Figure 5 Schematic diagram of the lower structure for the lifting equipment used in the installation of steel pipe lattice column piers Figure 1 ;

[0024] Figure 6 Schematic diagram of the lower structure for the lifting equipment used in the installation of steel pipe lattice column piers Figure 2 ;

[0025] Figure 7 Schematic diagram of the pin connection between the upper and lower structures of the lifting device;

[0026] In the diagram: 1. Main connecting H-beam of the upper structure; 2. Connecting channel steel; 3. Double connecting channel steel; 4. Connecting lug plate; 5. Connecting lug plate reinforcing plate; 6. Flange; 7. Lifting lug plate; 8. Lifting lug plate reinforcing plate of the lower structure; 9. First lifting lug stiffening plate; 10. Second lifting lug stiffening plate; 11. Main connecting H-beam of the lower structure; 12. First double connecting channel steel; 13. Second double connecting channel steel; 14. Third double connecting channel steel; 15. Connecting short channel steel of the lower structure; 16. Connecting long channel steel of the lower structure; 18. Winch; 19. Wire rope; 20. Patterned steel plate; 21. Connecting pin; 22. High-strength bolt; 23. Pier structure; 24. Upper structure; and 25. Lower structure. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] The lifting equipment for installing this three-limb steel pipe lattice column pier includes: an upper structure 24, a lower structure 25, a connecting pin 21, high-strength bolts 22, and a winch 18. Both the upper and lower structures are triangular. Please refer to [link / reference]. Figure 1 , Figure 1 A schematic diagram showing the connection between the lifting equipment and the steel wire rope of the pier and crane equipment for the installation of steel pipe lattice column piers.

[0029] Please see Figure 2-3 , Figure 2 A schematic diagram of the upper structure elevation for the lifting equipment used in the installation of steel pipe lattice column piers; Figure 3 This is a schematic diagram of the upper structure of the lifting equipment used for installing steel pipe lattice column piers. The upper structure includes connecting channel steel 2 and three main connecting H-beams 1 connected end to end. One end of the connecting channel steel 2 is vertically connected to one of the main connecting H-beams 1 of the upper structure, and the other end is connected to the connection point of the other two main connecting H-beams 1 of the upper structure.

[0030] The double-jointed connecting channel steel 3 includes two symmetrically arranged inclined channel steels. One end of the inclined channel steel is connected to the middle of the connecting channel steel 2, and the other end is connected to the connection point of the two upper structure main connecting H-beams 1 on one side of the connecting channel steel 2.

[0031] The connecting ear plate 4 is welded to the connection point of the two main connecting H-beams 1 of the upper structure, and the connecting ear plate 4 is reinforced with a connecting ear plate 5 on the outside.

[0032] The lower ends of the two connecting lugs 4 are connected to the lower structure lifting lugs 7 of the lower structure via connecting pins 21; please refer to Figure 7 , Figure 7 A schematic diagram of the pin connection between the upper and lower structures of the lifting device; the upper end of the connecting lug 4 has a through hole, through which the shackle of the wire rope is connected, and the wire rope is connected to the crane equipment.

[0033] Please see Figure 4-6 , Figure 4 A schematic diagram of the lower structure elevation for the lifting equipment used in the installation of steel pipe lattice column piers; Figure 5 Schematic diagram of the lower structure for the lifting equipment used in the installation of steel pipe lattice column piers Figure 1 ; Figure 6 Schematic diagram of the lower structure for the lifting equipment used in the installation of steel pipe lattice column piers Figure 2The lower structure includes a first double-jointed connecting channel steel 12, a second double-jointed connecting channel steel 13, a third double-jointed connecting channel steel 14, and three lower structure main connecting H-beams 11 connected end to end. One end of each of the three double-jointed connecting channel steels is vertically connected to the middle of one lower structure main connecting H-beam 11, and the other end is connected to the connection point of the other two lower structure main connecting H-beams 11.

[0034] Between each pair of main connecting H-beams 11 of the lower structure, there are intermittently connected short channel steels 15 and long channel steels 16. At the junction of the two pairs of main connecting H-beams 11 of the lower structure, the lower structure lifting lugs 7 are connected to the flanges 6 by welding. The upper end of the lower structure lifting lugs 7 is provided with a lower structure lifting lug reinforcing plate 8, and the lower end is provided with a first lifting lug stiffening plate 9 and a second lifting lug stiffening plate 10 at intervals. The flanges 6 are connected to the steel pipe pier structure 23 by high-strength bolts 22.

[0035] A lower structure winch support channel steel 17 is installed on the main connecting H-beam 11 of the lower structure, and the winch 18 is installed on the lower structure winch support channel steel 17. The winch 18 is connected to the lifting personnel work platform via a wire rope 19.

[0036] Patterned steel plates 20 are installed on each channel steel of the lower structure to facilitate construction work.

[0037] The lower structure is composed of connecting channel steel, which has a large load-bearing capacity and can accommodate welding machines and other construction equipment. The entire lifting device is connected to the pier structure 23 via flange high-strength bolts 22, and the lifting equipment shackle is installed on the lifting lug plate on the upper structure. The traction mechanism includes an electric winch and matching wire ropes. The entire lifting device uses the winch to drive the wire ropes to raise and lower the personnel working platform.

[0038] This lifting device for installing three-limb steel pipe lattice column piers mainly consists of an upper structure, a lower structure, assembly connectors, and winches. The upper structure uses double-channel steel as the main support structure, welded integrally with the lifting lugs. The lower structure uses double-channel steel as the main support structure, with patterned steel plates laid on top to meet the needs of personnel operations. The bottom of the lower structure consists of multiple connecting channel steels to accommodate welding equipment and other construction equipment. The upper and lower structures are connected by pins for easy assembly. The flange of the lower structure is connected to the pier structure with high-strength bolts, facilitating installation and disassembly without damaging the pier structure itself. The crane slings are connected to the three lifting lugs on the upper structure via matching shackles, ensuring balanced force distribution during lifting operations, safety, and a smooth lifting process. The three winches and matching wire ropes installed on the lower structure allow for convenient and quick raising and lowering of the personnel working platform.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A spreader for installing a three-legged steel tubular lattice column pier, characterized by, include: The structure includes an upper structure, a lower structure, connecting pins, high-strength bolts, and a winch; both the upper structure and the lower structure are triangular structures. Connecting lugs are welded to the three corners of the upper structure, and the lower ends of the two connecting lugs are connected to the lower structure lifting lugs of the lower structure through connecting pins; the upper end of the connecting lugs is provided with a through hole, through which a shackle of a wire rope is connected, and the wire rope is connected to the hoisting equipment; The lower structure is equipped with winches on three sides, and a patterned steel plate is set at the center of the lower structure.

2. The three-legged steel tubular lattice column hanger for installation of a three-legged steel tubular lattice column type pier according to claim 1, wherein The upper structure includes a connecting channel steel and three main connecting H-beams of the upper structure connected end to end. One end of the connecting channel steel is vertically connected to one of the main connecting H-beams of the upper structure, and the other end is connected to the connection point of the other two main connecting H-beams of the upper structure.

3. The three-legged steel tubular lattice column hanger for installation of a three-legged steel tubular lattice column type pier according to claim 2, characterized in that, The upper structure also includes double-jointed connecting channel steel, which comprises two symmetrically arranged inclined channel steels. One end of the inclined channel steel is connected to the middle of the connecting channel steel, and the other end is connected to the connection point of the two main connecting H-beams of the upper structure on one side of the connecting channel steel.

4. The three-legged tubular lattice column hanger for installation of a three-legged tubular lattice column type pier according to claim 3, characterized in that, The connecting lugs are welded to the connection points of the two main connecting H-beams of the upper structure, and a connecting lug reinforcing plate is welded to the outside of the connecting lugs.

5. The three-legged tubular lattice column hanger for installation of a three-legged tubular lattice column type pier according to claim 1, wherein The lower structure includes a first double-jointed connecting channel steel, a second double-jointed connecting channel steel, a third double-jointed connecting channel steel, and three lower structure main connecting H-beams connected end to end. One end of each of the three double-jointed connecting channel steels is vertically connected to the middle of one of the lower structure main connecting H-beams, and the other end is connected to the connection point of the other two lower structure main connecting H-beams.

6. The three-legged tubular lattice column hanger for installation of a three-legged tubular lattice column type pier according to claim 5, characterized in that, Between each pair of H-beams that are the main connecting structures of the lower structure, there are short channel steels and long channel steels for connecting the lower structure.

7. The three-legged tubular lattice column hanger according to claim 6, wherein The lower structure main connecting H-beams are connected to the flange by welding at the junction. The upper end of the lower structure lifting lug plate is provided with a lower structure lifting lug plate reinforcement plate, and the lower end is provided with a first lifting lug stiffening plate and a second lifting lug stiffening plate at intervals. The flange is connected to the steel pipe pier by high-strength bolts.

8. The three-legged tubular lattice column hanger according to claim 7, wherein The lower structure main connecting H-beam is provided with a lower structure winch support channel steel, and the winch is installed on the lower structure winch support channel steel.

9. The three-legged tubular lattice column hanger according to claim 8, wherein The winch is connected to the personnel work platform via a steel wire rope.

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