Large caisson hoist

Abstract

This utility model discloses a large caisson lifting device, including a caisson body, lifting lugs, cables, a lifting hole, and a steel pipe. The lifting lugs are fixed to the upper end of the caisson body. The lifting hole is located on the outer side wall of the caisson body. The steel pipe is located on the outer wall of the caisson body, with one end of the steel pipe slidably inserted into the lifting hole. A first rubber pad is fixedly connected to the inner side wall of the steel pipe. A wiring groove is provided on the upper side wall of the steel pipe and at the edge of the end inserted into the lifting hole. A second rubber pad is fixedly connected to the inner side wall and bottom of the wiring groove. A guide block is fixedly connected to the lower side wall of the steel pipe. A guide groove is provided between the outer wall of the caisson body and the bottom of the lifting hole. This utility model utilizes the guide block and wiring groove structure to effectively store the cable, reduce wear between the cable and the caisson and steel pipe, and prevent the steel pipe from rotating during operation, thus improving practicality and convenience.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to a large caisson lifting equipment. Background Technology

[0002] A large caisson is a large box-shaped reinforced concrete or steel structural component, typically with large size and weight. Its shape is generally cuboid or cube, and the interior is usually hollow to reduce its weight and facilitate installation and use. Large caissons are widely used in port engineering, coastal protection engineering, and bridge engineering.

[0003] The existing utility model patent with application number CN202121336982.3 proposes a large caisson lifting device, including lifting lugs fixedly installed on the top of the caisson. The side of the caisson has multiple lifting holes for inserting load-bearing steel pipes. Load-bearing cables are threaded through the load-bearing steel pipes. Through the insertion process of the load-bearing steel pipes and lifting holes, the connection process between the load-bearing cables and the caisson before lifting can be completed quickly. Moreover, after lifting, its disassembly is also quick and simple. This lifting device greatly improves lifting efficiency while ensuring safety.

[0004] Despite the advantages mentioned above, the tortuous connection method used for the cables in the comparative document has significant drawbacks: firstly, this connection method exacerbates frictional wear between the cables and the steel pipes and caissons, shortening the cable's service life; secondly, the tortuous layout of the cables hinders the smooth insertion of the steel pipes into the lifting holes, greatly reducing operational efficiency. Therefore, this structure still has considerable room for improvement in terms of practicality and convenience. Utility Model Content

[0005] The purpose of this utility model is to solve the problems mentioned in the background art and to propose a large caisson lifting device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A large caisson lifting device includes a caisson body, lifting lugs, cables, a lifting hole, and a steel pipe. The lifting lugs are fixed to the upper end of the caisson body. The lifting hole is located on the outer side wall of the caisson body. The steel pipe is located on the outer wall of the caisson body, with one end of the steel pipe slidably inserted into the lifting hole. A first rubber pad is fixedly connected to the inner side wall of the steel pipe. A wiring groove is provided on the upper side wall of the steel pipe and at the edge of the end inserted into the lifting hole. A second rubber pad is fixedly connected to the inner side wall and the bottom of the wiring groove. A guide block is fixedly connected to the lower side wall of the steel pipe. A guide groove is provided between the outer wall of the caisson body and the bottom of the lifting hole. The lower end of the guide block slides into the guide groove.

[0008] Preferably, the lower end of the guide block is provided with a rolling mechanism, which consists of an arc groove and a roller. The arc groove is provided on the lower side wall of the guide block, and the roller is tactilely connected to the inner side wall of the arc groove. The lower side wall of the roller passes through the arc groove.

[0009] Preferably, the number of rolling mechanisms is 2-4.

[0010] Preferably, the end of the steel pipe inserted into the hoisting hole has a first chamfer near the edge.

[0011] Preferably, the lower sidewall of the guide block and the edges near both ends are provided with a second chamfer.

[0012] Preferably, a backing plate is fixedly sleeved on the outer wall of the steel pipe, and the backing plate is located on the outside of the caisson body.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention, by incorporating a first rubber pad, a second rubber pad, a first chamfer, and a wiring groove, effectively accommodates cables, significantly reducing friction and wear between the cables and the caisson and steel pipe, thus extending the cable's service life. Simultaneously, the design of the first chamfer and wiring groove facilitates the insertion of the steel pipe into the lifting hole, greatly enhancing the device's practicality and convenience. Furthermore, the combined design of the guide block, second chamfer, guide groove, and rollers guides the steel pipe during insertion into the lifting hole, effectively preventing rotation during use and significantly improving the device's convenience and reliability. Finally, the guide block and wiring groove structure effectively store cables, reducing wear between them and the caisson and steel pipe, while preventing rotation of the steel pipe during operation, further improving practicality and convenience. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a large caisson lifting device proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of a large caisson lifting device proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure at point A of a large caisson lifting device proposed in this utility model;

[0018] Figure 4 This is a partial side view of the steel pipe structure of a large caisson lifting device proposed in this utility model.

[0019] In the diagram: 1-caisson body, 2-lifting lug, 3-cable, 4-steel pipe, 5-backing plate, 6-guide block, 7-guide groove, 8-roller, 9-second chamfer, 10-first chamfer, 11-first rubber pad, 12-wiring groove, 13-second rubber pad. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-4 A large caisson lifting device includes a caisson body 1, lifting lugs 2, cables 3, lifting holes and steel pipes 4. The lifting lugs 2 are fixed to the upper end of the caisson body 1. The lifting holes are set on the outer side wall of the caisson body 1. The steel pipes 4 are set on the outer side wall of the caisson body 1. A backing plate 5 is fixedly sleeved on the outer side wall of the steel pipes 4 to limit the depth of the steel pipes 4 after they are inserted into the lifting holes. The backing plate 5 is located on the outside of the caisson body 1. One end of the steel pipes 4 is slidably inserted into the lifting holes.

[0022] In this embodiment, a first chamfer 10 is provided at one end of the steel pipe 4 that is inserted into the hoisting hole and near the edge, in order to reduce the difficulty of inserting the steel pipe 4. A first rubber pad 11 is fixedly connected to the inner side wall of the steel pipe 4 to reduce the wear of the hoisting rope 3. A wiring groove 12 is provided at the edge of the upper side wall of the steel pipe 4 and the end that is inserted into the hoisting hole to accommodate the hoisting rope 3. A second rubber pad 13 is fixedly connected to the inner side wall and the inner bottom of the wiring groove 12 to reduce the wear of the hoisting rope 3.

[0023] In this embodiment, a guide block 6 is fixedly connected to the lower side wall of the steel pipe 4, which is used to guide the steel pipe 4 to move and prevent it from rotating in conjunction with the guide groove 7. The lower side wall of the guide block 6 and the edges near both ends are provided with a second chamfer 9, which is used to facilitate the insertion of the guide block 6 into the guide groove 7. A guide groove is provided between the outer wall of the caisson body 1 and the bottom of the hoisting hole. The lower end of the guide block 6 slides into the guide groove.

[0024] In this embodiment, the lower end of the guide block 6 is provided with a rolling mechanism, which consists of an arc groove and a roller 8. The rolling mechanism is used to reduce the resistance when the guide block 6 moves. The arc groove is provided on the lower side wall of the guide block 6, and the roller 8 is rolled on the inner side wall of the arc groove. The lower side wall of the roller 8 passes through the arc groove. The number of rolling mechanisms is 2-4, which are used to provide uniform support for the guide block 6.

[0025] In this embodiment, during installation, one end of the lifting rope 3 is first passed through the steel pipe 4 and then fixedly connected to the lifting lug 2. Subsequently, the lifting rope 3 is embedded in the wiring groove 12. This groove can accommodate the lifting rope, which not only prevents it from obstructing the insertion of the steel pipe 4 into the lifting hole, but also limits the movement of the lifting rope 3, preventing repeated wear between the lifting rope 3 and the steel pipe 4 and the caisson body 1. After completing the above steps, the steel pipe 4 is inserted into the lifting hole to complete the installation. During the insertion process, the steel pipe 4 drives the guide block 6 to slide into the guide groove 7. The two work together to provide guidance for the steel pipe 4, effectively preventing it from rotating during use and improving the reliability of the installation. In addition, the first rubber pad 11 and the second rubber pad 13 are tightly attached to the outside of the lifting rope 3, which can significantly reduce the wear of the lifting rope during installation and use and extend its service life.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A large caisson hoist comprising a caisson body (1), an ear (2), a cable (3), a hoisting hole and a steel pipe (4), characterized in that: The lifting lug (2) is fixed to the upper end of the caisson body (1). The lifting hole is set on the outer side wall of the caisson body (1). The steel pipe (4) is set on the outer wall of the caisson body (1). One end of the steel pipe (4) is slidably inserted into the lifting hole. A first rubber pad (11) is fixedly connected to the inner side wall of the steel pipe (4). A wiring groove (12) is provided at the edge of the upper side wall of the steel pipe (4) and the end inserted into the lifting hole. A second rubber pad (13) is fixedly connected to the inner side wall and the bottom of the wiring groove (12). A guide block (6) is fixedly connected to the lower side wall of the steel pipe (4). A guide groove is provided between the outer wall of the caisson body (1) and the bottom of the lifting hole. The lower end of the guide block (6) slides into the guide groove.

2. A large caisson hoist according to claim 1, characterized in that: The lower end of the guide block (6) is provided with a rolling mechanism, which consists of an arc groove and a roller (8). The arc groove is provided on the lower side wall of the guide block (6), and the roller (8) is rolled on the inner side wall of the arc groove. The lower side wall of the roller (8) passes through the arc groove.

3. A large caisson hoist according to claim 1, characterized in that: The number of rolling mechanisms is 2-4.

4. A large caisson lifting device according to claim 1, characterized in that: The steel pipe (4) is inserted into the hoisting hole at one end and has a first chamfer (10) near the edge.

5. A large caisson lifting device according to claim 1, characterized in that: The guide block (6) has a second chamfer (9) on its lower sidewall and near both ends.

6. A large caisson lifting device according to claim 1, characterized in that: A backing plate (5) is fixedly sleeved on the outer wall of the steel pipe (4), and the backing plate (5) is located on the outside of the caisson body (1).

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