Modularized hoisting tool for LNG low-temperature storage tank wall reinforcing steel bars

Abstract

The utility model provides an LNG (liquefied natural gas) low-temperature storage tank wall steel bar modular hoisting tool which comprises a cross beam, an auxiliary sling and a main sling, a plurality of lifting lugs are arranged on the cross beam, the end of the main sling is fixedly connected to the lifting lugs, the connecting positions are arranged on the two sides of the cross beam, one end of the auxiliary sling is fixedly connected to the lifting lugs, and the other end of the auxiliary sling is fixedly connected to the lifting lugs. An adjusting structure is arranged on the auxiliary sling, the adjusting structure comprises an O-shaped ring, a check block is arranged on one side of the O-shaped ring, and a screw rod is in threaded connection with the middle of the check block. According to the lifting device, the posture of the reinforcing mesh can be adjusted by the arranged adjusting structure while the reinforcing mesh is integrally lifted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hoisting, in particular to a LNG low-temperature storage tank wall steel bar modular hoisting tool. BACKGROUND

[0002] Liquefied Natural Gas (LNG) is a liquefied form of natural gas, and its main component is methane, which is recognized as the cleanest fossil energy on earth. When the LNG transport ship is unloading, it needs a large low-temperature storage tank for temporary storage.

[0003] In the construction of a large LNG low-temperature storage tank, it is crucial to ensure the structural strength of the tank. The wall of the storage tank is usually formed by pouring, and the steel bar plays a key role in the concrete structure. The steel bar can enhance the overall structural strength of the concrete, evenly distribute stress, avoid cracks in the concrete due to uneven stress, significantly improve the stability and durability of the wall of the storage tank, and ensure the safety and long-term service of the storage tank. However, the wall of the storage tank is high and large in volume, and the traditional steel bar binding and installation method is not conducive to improving the construction efficiency and has high safety risks. Therefore, the steel mesh is usually bound on the ground and then hoisted to the construction surface for fixation. Since the steel mesh is in the form of a sheet and the steel wires are connected between the steel bars, it is necessary to ensure that the stress of the steel mesh is uniform and the posture is correct during hoisting. SUMMARY

[0004] To solve the above problems, the present application discloses a LNG low-temperature storage tank wall steel bar modular hoisting tool, which comprises a crossbeam, a secondary sling and a main sling. The crossbeam is provided with a plurality of lifting lugs, the end of the main sling is fixedly connected to the lifting lug, and the connection is located on both sides of the crossbeam. One end of the secondary sling is fixedly connected to the lifting lug. During construction, in order to improve the efficiency of construction, the steel mesh is pre-constructed and then hoisted to the construction surface for installation. Since the steel mesh is in the form of a sheet, the crossbeam and a plurality of secondary slings are provided to transport the steel mesh as a whole.

[0005] The secondary sling is provided with an adjusting structure, which comprises an O-ring. One side of the O-ring is provided with a stop block, and the middle of the stop block is threadedly connected with a screw rod. When the secondary sling is bound to the steel mesh for transportation, the length of the secondary sling may not be consistent when it is stressed, which may cause the steel mesh to tilt. Therefore, the adjusting structure is provided. If the length of the secondary sling is not consistent, the length of the secondary sling on one side of the O-ring is controlled by rotating the screw rod, so as to realize the length adjustment of the hoisting of the secondary sling.

[0006] Preferably, the lower end of the secondary sling is provided with a horseshoe buckle. The horseshoe buckle is used to facilitate connection to the steel mesh.

[0007] Preferably, a sliding ring is arranged on the cross beam, the sliding ring comprises a moving ring, and the lifting lug is fixedly connected to the side wall of the moving ring. The sliding ring is arranged to facilitate the control of the position of the lifting lug.

[0008] Preferably, a convex column is fixedly connected to the side wall of the moving ring, and a bolt is threadedly connected to the middle part of the convex column. When the position of the lifting lug is determined, the bolt is rotated so that the end of the bolt abuts against the cross beam, thereby fixing the sliding ring. Further, a plurality of grooves are arranged at equal intervals on the cross beam, and the end of the bolt is fitted in the groove, thereby improving the stability of the fixing of the sliding ring.

[0009] Preferably, a Y-shaped piece is rotatably connected to the end of the screw rod. The use of the Y-shaped piece avoids the slipping of the auxiliary sling.

[0010] Preferably, a connecting head is fixedly connected to the end of the screw rod, and a through hole is arranged through the side wall of the connecting head. A rod-shaped tool is inserted into the through hole as a handle, so that the screw rod can be conveniently rotated, the screw rod can be extended or retracted, and the length of the auxiliary sling on one side of the O-shaped ring changes.

[0011] The beneficial effects of the present application are as follows:

[0012] 1. The cross beam, the auxiliary sling and the main sling are arranged, and the use of the plurality of auxiliary slings ensures the uniform stress of the steel mesh during hoisting.

[0013] 2. The sliding ring is arranged, that is, the position of the lifting lug connected with the auxiliary sling and the main sling can be changed, and the position is adjusted according to the size and the center of gravity of the steel mesh, thereby facilitating the hoisting of the steel mesh of different sizes.

[0014] 3. The adjusting structure is arranged, and in actual use, the hoisting lengths are inconsistent during the binding of the auxiliary sling and the steel mesh, which causes incorrect posture of the steel mesh. The adjusting structure can adjust the hoisting length, thereby facilitating the hoisting of the steel mesh in a correct posture to the construction site for installation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective view of the present application;

[0016] Figure 2 is a perspective view of the sliding ring of the present application;

[0017] Figure 3 is Figure 1 is an enlarged view of A in FIG. 4;

[0018] Figure 4 is a schematic view of the application of the present application;

[0019] Figure 5 is a schematic view of the connection of the horse-shoe buckle.

[0020] LIST OF REFERENCE NUMBERS:

[0021] 1. Secondary sling; 2. Crossbeam; 3. Slip ring; 4. Main sling; 5. Adjustment structure; 6. Horseshoe buckle;

[0022] 31. Lifting lug; 32. Moving ring; 33. Protruding post; 34. Bolt; 51. Connector; 52. Screw; 53. Stop block; 54. O-ring; 55. Y-shaped component. Detailed Implementation

[0023] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0024] like Figures 1 to 5 As shown, the modular hoisting fixture for the steel reinforcement of the LNG cryogenic storage tank wall includes a crossbeam 2, an auxiliary sling 1, and a main sling 4. The crossbeam 2 is a single rod that remains horizontal during the hoisting of the steel mesh. The auxiliary sling 1 is connected to the steel mesh, while the main sling 4 is fixedly connected to the lifting end of the hoisting equipment. Several lifting lugs 31 are provided on the crossbeam 2. Each lug 31 is a plate with perforations. The ends of the main sling 4 are fixedly connected to the lifting lugs 31, with the connection points located on both sides of the crossbeam 2. Specifically... Figure 1 As shown, one end of the auxiliary sling 1 is fixedly connected to the lifting lug 31. When transporting the sheet-like wire mesh, the connection of multiple auxiliary slings 1 ensures the stability of the wire mesh during the transfer process.

[0025] An adjustment structure 5 is provided on the auxiliary sling 1. The distance from the auxiliary sling 1 to the lifting lug 31 is set as the lifting length, and the adjustment structure 5 is used to change the lifting length. The adjustment structure 5 includes an O-ring 54 with a circular cross-section. A stop block 53 is provided on one side of the O-ring 54. A semi-circular groove is provided on the stop block 53, which cooperates with the U-ring 54. A screw 52 is threadedly connected to the middle of the stop block 53. The O-ring 54 and the stop block 53 are in contact with each other.

[0026] When using the adjustment structure 5, first pass the auxiliary sling 1 through the O-ring 54 and place the stop block 53 at the bend of the auxiliary sling 1. When looking closely at the structure of the O-ring 54 and the stop block 53, when the auxiliary sling 1 is tightened, the auxiliary sling 1 presses against the stop block 53 and the stop block 53 is pressed against the O-ring 54. When the screw 52 is engaged, the end of the screw 52 abuts against the auxiliary sling 1. Rotating the screw 52 changes the length of the auxiliary sling 1 on one side of the O-ring 54, that is, the lifting length changes, which is beneficial for adjusting the horizontal posture when hoisting the steel mesh.

[0027] The lower end of the auxiliary sling 1 is provided with a horseshoe buckle 6, the use of the horseshoe buckle 6 is beneficial to the quick connection of the auxiliary sling 1 and the reinforcement mesh.

[0028] The crossbeam 2 is sleeved with a sliding ring 3, the sliding ring 3 is slidably arranged on the crossbeam 2, meanwhile, a blocking ring is arranged at the end of the crossbeam 2, so as to avoid the sliding ring 3 from sliding off the crossbeam 2, the sliding ring 3 comprises a moving ring 32, and an ear 31 is fixedly connected to the side wall of the moving ring 32, when the moving ring 32 moves, the position of the ear 31 also changes, which is suitable for hoisting reinforcement meshes of different sizes.

[0029] The side wall of the moving ring 32 is fixedly connected with a convex column 33, the convex column 33 is cylindrical, and a bolt 34 is threadedly connected to the middle part of the convex column 33, that is, after the position of the ear 31 is changed, a tool is used to rotate the bolt 34, so that the end of the bolt 34 abuts against the side wall of the crossbeam 2, and the sliding ring 3 is fixed. Further, in the state that the bolt 34 is tightened, the sliding ring 3 is prevented from sliding on the crossbeam 2, a plurality of grooves are arranged on the crossbeam 2, so that the bolt 34 is matched in the grooves, and thus it is ensured that the sliding ring 3 will not rotate.

[0030] The end of the screw rod 52 is rotatably connected with a Y-shaped piece 55. Since the screw rod 52 is circular at the end, it is easy to cause the problem of sliding off when abutting against the auxiliary sling 1, and therefore the Y-shaped piece 55 is arranged.

[0031] The end of the screw rod 52 is fixedly connected with a connecting head 51, the connecting head 51 can be detached from the end of the screw rod 52, at this time, the stop block 53, the U-shaped piece 54 and the screw rod 52 can be arranged in a detachable manner, and a through hole is arranged through the side wall of the connecting head 51. A rod-shaped tool is inserted into the through hole as a handle, so that the screw rod 52 can be conveniently rotated.

[0032] The technical means disclosed in the scheme of the application is not limited to the technical means disclosed in the above-mentioned embodiments, and also includes technical solutions composed of any combination of the above technical features.

Claims

1. A LNG low-temperature storage tank wall steel reinforcement modular hoisting tool, characterized in that, Including crossbeam (2), auxiliary sling (1) and main sling (4), be provided with several lifting lugs (31) on crossbeam (2), the end of main sling (4) is fixedly connected in lifting lug (31), and the junction is set at the both sides of crossbeam (2), one end of auxiliary sling (1) is fixedly connected on lifting lug (31); Adjusting structure (5) is provided on auxiliary sling (1), adjusting structure (5) includes O-shaped ring (54), one side of O-shaped ring (54) is provided with stopper (53), the middle part of stopper (53) is screw-connected with screw rod (52).

2. The LNG cryogenic tank wall steel reinforcement modularized hoisting tooling of claim 1, wherein: The lower end of auxiliary sling (1) is provided with horseshoe buckle (6).

3. The LNG cryotank wall steel reinforcement modularized hoisting tooling of claim 1, wherein: The sliding ring (3) is provided on the crossbeam (2) and is sleeved, the sliding ring (3) includes the moving ring (32), the lifting lug (31) is fixedly connected on the side wall of the moving ring (32).

4. The LNG cryotank wall steel reinforcement modularized hoisting tooling of claim 3, wherein: The side wall of the moving ring (32) is fixedly connected with the convex column (33), the middle part of the convex column (33) is screw-connected with the bolt (34) penetratingly.

5. The LNG cryotank wall steel reinforcement modularized hoisting tooling of claim 1, wherein: The end of the screw rod (52) is rotatably connected with the Y-shaped piece (55).

6. The LNG cryotank wall steel reinforcement modularized hoisting tooling of claim 1, wherein: The end of the screw rod (52) is fixedly connected with the connecting head (51), and the side wall of the connecting head (51) is provided with a through hole penetratingly.

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