A type of lifting device for immersed tunnel construction of river-crossing pipelines

Abstract

This utility model discloses a hoisting device for immersed tunnel construction of river-crossing pipelines, relating to the field of hoisting devices for immersed tunnel construction of river-crossing pipelines. Specifically, it is a hoisting device for immersed tunnel construction of river-crossing pipelines, comprising a rectangular frame. Multiple railings are fixedly connected to the inner side of the rectangular frame, and the railings are evenly distributed within the rectangular frame. Fixed plates are fixedly connected to both ends of the rectangular frame. The fixed plates have guide rail grooves, and multiple fixing holes are provided on one side of the fixed plates. Movable blocks are slidably connected inside the guide rail grooves. The movable blocks are fixed to the fixing holes by bolts. An internal support structure is fixedly connected to the bottom of the movable blocks. This utility model solves the problems of uneven support and insufficient adjustment flexibility in existing hoisting devices for immersed tunnel construction of river-crossing pipelines.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment for immersed tunnel construction of river-crossing pipelines, specifically a lifting equipment for immersed tunnel construction of river-crossing pipelines. Background Technology

[0002] In the construction of immersed tunnels for river crossings, the hoisting operation of the immersed tunnels places extremely high demands on the stability and adaptability of the equipment. Among them, the internal support structure is the core component that ensures that the immersed tunnels do not deform during the hoisting process.

[0003] The existing internal support structures of immersed tube hoisting equipment often suffer from uneven support and insufficient adjustment flexibility: the support blocks of some internal support structures are scattered or insufficient in number, resulting in the support force on the inner wall of the immersed tube being concentrated in a local area, which can easily cause the immersed tube to deform due to excessive stress; at the same time, the support range adjustment of traditional internal support structures is mostly fixed or cannot be continuously adjusted, making it difficult to adapt to immersed tubes of different diameter specifications.

[0004] Therefore, a new type of hoisting device for immersed tunnel construction of river-crossing pipelines needs to be designed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a hoisting device for immersed tunnel construction of river-crossing pipelines, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lifting device for immersed tube construction of a river-crossing pipeline, comprising a rectangular frame, wherein multiple railings are fixedly connected to the inner side of the rectangular frame, the multiple railings are evenly distributed within the rectangular frame, and fixing plates are fixedly connected to both ends of the rectangular frame, wherein the fixing plates are provided with guide rail grooves, and multiple fixing holes are provided on one side of the fixing plates, wherein a movable block is slidably connected inside the guide rail groove, and the movable block is fixed to the fixing holes by bolts, and an internal support structure is fixedly connected to the bottom of the movable block.

[0007] Preferably, the internal support structure includes a support rod, a connecting block is fixedly connected to the bottom of the support rod, a central positioning shaft is rotatably connected to the connecting block, a disk is fixedly connected to one end of the central positioning shaft, and a fixing rod is fixedly connected to the disk.

[0008] Preferably, a ring is slidably connected to the central positioning shaft, and five support blocks are fixedly connected to the ring. The five support blocks are evenly distributed on the ring. Connecting plates are screwed to both sides of the support blocks, and a fixing block is screwed to one end of the connecting plate. An inner support plate is fixedly connected to the side of the fixing block.

[0009] Preferably, the top of the rectangular frame is fixedly connected to two trapezoidal frames, which are symmetrically arranged. A lever is fixedly connected to the inner side of each trapezoidal frame, and three hooks are fixedly connected to the top of each lever.

[0010] Preferably, the rectangular frame has multiple arc-shaped clamping plates hinged to both sides.

[0011] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the internal support structure can drive five evenly distributed support blocks to move radially through a sliding ring, and can be finely adjusted through a connecting plate to ensure that the internal support plate fully fits the inner wall of the immersed tube, thereby forming a uniform and stable overall support from inside the pipe, avoiding deformation of the immersed tube caused by local stress concentration during hoisting; at the same time, the central positioning shaft and the connecting block are rotatably connected, so that the internal support angle can be flexibly adjusted, enhancing the adaptability to immersed tubes of different inner wall directions and different specifications. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a front view of the present invention.

[0014] Figure 3 This utility model Figure 2 A three-dimensional cross-sectional view of point AA in the middle.

[0015] Figure 4 This is the right view of the present invention.

[0016] Figure 5 This utility model Figure 2 3D cross-sectional view at point BB.

[0017] Figure 6 This utility model Figure 5 Enlarged view of point C in the middle.

[0018] In the diagram: 1. Rectangular frame; 2. Railing; 3. Fixing plate; 4. Guide rail groove; 5. Fixing hole; 6. Movable block; 7. Bolt; 8. Support rod; 9. Connecting block; 10. Central positioning shaft; 11. Disc; 12. Fixing rod; 13. Ring; 14. Support block; 15. Screw; 16. Connecting plate; 17. Fixing block; 18. Inner support plate; 19. Trapezoidal frame; 20. Lever; 21. Hanging buckle; 22. Arc-shaped clamping plate. Detailed Implementation

[0019] 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.

[0020] All electronic components in this application are controlled by an external controller.

[0021] Example 1 Please refer to Figure 1-6 As shown, this utility model provides a hoisting device for immersed tunnel construction of a river-crossing pipeline, including a rectangular frame 1. Multiple railings 2 are fixedly connected to the inner side of the rectangular frame 1, and are evenly distributed within the rectangular frame 1. The multiple railings 2 increase the structural strength of the rectangular frame 1 and reduce deformation during lifting. Fixed plates 3 are fixedly connected to both ends of the rectangular frame 1. The fixed plates 3 have guide rail grooves 4, and multiple fixing holes 5 are provided on one side of the fixed plates 3. Movable blocks 6 are slidably connected inside the guide rail grooves 4. The movable blocks 6 are screwed to the fixing holes 5 by bolts 7. An internal support structure is fixedly connected to the bottom of the movable blocks 6. Depending on the length of the immersed tunnel, the internal support structure on the fixed blocks 17 moves along the guide rail grooves 4 to the desired position via the fixed plates 3, and then locks the position by engaging with the bolts 7 through the positioning holes.

[0022] Specifically, the internal support structure includes a support rod 8, a connecting block 9 fixedly connected to the bottom of the support rod 8, a central positioning shaft 10 rotatably connected to the connecting block 9, a disk 11 fixedly connected to one end of the central positioning shaft 10, and a fixing rod 12 fixedly connected to the disk 11; the movable block 6 and the connecting block 9 are connected by the support rod 8, and the rotatable connection between the connecting block 9 and the central positioning shaft 10 allows the central positioning shaft 10 to be flexibly adjusted in angle to adapt to different directions of the inner wall of the immersed tube.

[0023] The central positioning shaft 10 is slidably connected to a ring 13, and five support blocks 14 are fixedly connected to the ring 13. The five support blocks 14 are evenly distributed on the ring 13. Connecting plates 16 are screwed to both sides of the support blocks 14 by screws 15. A fixing block 17 is screwed to one end of the connecting plate 16 by screws 15. An inner support plate 18 is fixedly connected to the side of the fixing block 17.

[0024] The ring 13 on the central positioning shaft 10 slides, driving five evenly distributed support blocks 14 to move axially, adjusting the distance between the support blocks 14 and the inner wall of the immersed tube; the connecting plates 16 on both sides of the support blocks 14 are connected to the fixing blocks 17 by screws 15, which can be finely adjusted to make the inner support plate 18 fit with the inner wall of the immersed tube; finally, the inner support plate 18 forms a balanced support from inside the immersed tube, preventing the immersed tube from deforming due to excessive local stress during hoisting.

[0025] Based on the above embodiments, specifically, the top of the rectangular frame 1 is fixedly connected to two trapezoidal frames 19, which are symmetrically arranged. The inner side of each trapezoidal frame 19 is fixedly connected to a lever 20. The trapezoidal frames 19 and the lever 20 enhance the load-bearing capacity of the rectangular frame 1 and ensure that the force is balanced when the immersed tube is lifted. The top of each lever 20 is fixedly connected to three lifting buckles 21, which are used to connect external lifting equipment. The three lifting buckles 21 form a triangular distribution to prevent the immersed tube from tilting.

[0026] Specifically, the rectangular frame 1 has multiple arc-shaped clamping plates 22 hinged on both sides. The arc design is adapted to the curvature of the outer wall of the immersed tube. The clamping angle can be adjusted through the hinge structure, and clamping force is applied from the outside of the immersed tube, forming a double fixation with the internal support structure.

[0027] Working principle: First, the external hoisting equipment is connected through the triangular distribution of the lifting buckles 21 at the top of the rectangular frame 1. The trapezoidal frame 19 and lever 20 enhance the overall load-bearing stability. During hoisting, the position of the movable blocks 6 on the fixed plates 3 at both ends is adjusted according to the length of the immersed tube. They slide along the guide rail groove 4 and are fixed by bolts 7, so that the inner support structure is positioned in a suitable area. The inner support structure adjusts the angle through the central positioning shaft 10. The sliding ring 13 drives the five support blocks 14 to move radially. Then, the inner support plate 18 is finely adjusted through the connecting plate 16 and the fixed block 17 to make it fit tightly against the inner wall of the immersed tube to form a uniform internal support. At the same time, the arc-shaped clamping plates 22 hinged on both sides of the rectangular frame 1 are adapted to the curvature of the outer wall of the immersed tube and apply clamping force from the outside, which works with the internal support to achieve double fixation inside and outside the immersed tube.

[0028] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hoisting device for immersed tunnel construction of a river-crossing pipeline, characterized in that, The system includes a rectangular frame (1), with multiple railings (2) fixedly connected to the inner side of the rectangular frame (1). The multiple railings (2) are evenly distributed within the rectangular frame (1). Fixed plates (3) are fixedly connected to both ends of the rectangular frame (1). The fixed plates (3) are provided with guide rail grooves (4). Multiple fixing holes (5) are provided on one side of the fixed plates (3). Movable blocks (6) are slidably connected inside the guide rail grooves (4). The movable blocks (6) are screwed to the fixing holes (5) by bolts (7). An internal support structure is fixedly connected to the bottom of the movable blocks (6).

2. The lifting device for immersed tunnel construction of a river-crossing pipeline according to claim 1, characterized in that: The internal support structure includes a support rod (8), a connecting block (9) is fixedly connected to the bottom of the support rod (8), a central positioning shaft (10) is rotatably connected to the connecting block (9), a disc (11) is fixedly connected to one end of the central positioning shaft (10), and a fixing rod (12) is fixedly connected to the disc (11).

3. The lifting device for immersed tunnel construction of a river-crossing pipeline according to claim 2, characterized in that: A circular ring (13) is slidably connected to the central positioning shaft (10). Five support blocks (14) are fixedly connected to the circular ring (13). The five support blocks (14) are evenly distributed on the circular ring (13). A connecting plate (16) is screwed to both sides of the support block (14) by screws (15). A fixing block (17) is screwed to one end of the connecting plate (16) by screws (15). An inner support plate (18) is fixedly connected to the side of the fixing block (17).

4. The lifting device for immersed tunnel construction of a river-crossing pipeline according to claim 3, characterized in that: The top of the rectangular frame (1) is fixedly connected to two trapezoidal frames (19), which are symmetrically arranged. The inner side of the trapezoidal frames (19) is fixedly connected to a lever (20), and the top of the lever (20) is fixedly connected to three hooks (21).

5. The lifting device for immersed tunnel construction of a river-crossing pipeline according to claim 4, characterized in that: The rectangular frame (1) has multiple arc-shaped clamping plates (22) hinged to both sides.

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