A sling for a spool

Abstract

The present invention relates to a sling for a spool. The sling includes a first load-bearing member, a connecting member, and a bendable clamping member. The first load-bearing member is snap-connected to the connecting member, and the bendable clamping member is rotatably connected to the connecting member. When the first load-bearing member is lifted, the first load-bearing member drives the bendable clamping member to extend until the bendable clamping member hooks the step on the inner wall of the barrel of the spool. The sling for a spool proposed by the present invention avoids the clamping member from contacting the surface of the steel wire rope, and as much steel wire rope as possible can be wound on the surface of the barrel.

Description

Technical Field

[0001] The present invention relates to the field of wire rope processing, and particularly to a sling for an industrial reel. Background Art

[0002] Existing industrial reels include a cylindrical body and wheels connected to both ends of the cylindrical body. When packaging wire ropes, it is usually necessary to wind the produced wire ropes around the cylindrical body of the industrial reel one by one, and then transport the industrial reel to a designated position. The industrial reel wound with wire ropes is relatively heavy and usually requires the assistance of handling equipment for transportation. If the wheels of the industrial reel are directly clamped by the clamping parts of relevant equipment and the industrial reel is lifted and transported away, it is necessary to reserve space on the cylindrical body for clamping, which affects the amount of wire ropes loaded on the industrial reel. In addition, the clamping parts are likely to touch the outermost layer of wire ropes on the cylindrical body. How to avoid the clamping parts from contacting the surface of the wire ropes and increase the amount of wire ropes wound on the cylindrical body are technical problems that need to be solved urgently in the prior art. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: how to avoid the clamping parts from contacting the surface of the wire ropes and increase the amount of wire ropes wound on the cylindrical body.

[0004] To solve the above technical problem, the present invention provides a sling for an industrial reel.

[0005] The present invention provides a sling for an industrial reel, including a first load-bearing member, a connecting member, and a bendable clamping member. The first load-bearing member is snap-connected to the connecting member, and the bendable clamping member is rotatably connected to the connecting member. When the first load-bearing member is lifted, the first load-bearing member drives the bendable clamping member to extend until the bendable clamping member hooks the step on the inner wall of the cylindrical body of the industrial reel.

[0006] Further, the connecting member includes a first ring and a second ring. The bottom of the first load-bearing member penetrates through the first ring, and a convex block is provided at the bottom of the first load-bearing member. The first ring is located above the convex block, and the convex block is used to prevent the first ring from sliding out from the bottom of the first load-bearing member;

[0007] One end of the bendable clamping member is rotatably connected to the first ring;

[0008] The second ring is located below the first ring, and the second ring is connected to the middle of the bendable clamping member.

[0009] Further, the bendable clamping member includes a plurality of pull rods and a plurality of hooks; one ends of the plurality of pull rods are rotatably connected to the first ring, the other ends of the plurality of pull rods are rotatably and bendably connected to the plurality of hooks one by one, and the middle parts of the plurality of hooks are rotatably connected to the second ring. The hooks are used to hook the inner wall of the cylindrical body of the industrial reel.

[0010] Further, the bottoms of the plurality of hooks penetrate into the second ring from above the second ring.

[0011] Further, the first load-bearing member includes a first cross beam and a first longitudinal beam. The top end of the first longitudinal beam is connected to the middle part of the first cross beam. The bottom end of the first longitudinal beam penetrates through the first ring, and a bump is provided at the bottom of the first longitudinal beam. The first cross beam is used for lifting and lowering the equipment, and thus lifting and lowering the spool.

[0012] Further, the first cross beam includes a first end portion, a middle part of the first cross beam, and a second end portion. The first end portion is connected to the middle part of the first cross beam, and the middle part of the first cross beam is connected to the second end portion. The width of the first end portion or the second end portion gradually increases in a direction away from the middle part of the first cross beam.

[0013] Further, the second ring includes a ring, a plurality of reinforcing ribs, and fixing blocks. The plurality of reinforcing ribs and the fixing blocks are arranged inside the ring. One end of each of the plurality of reinforcing ribs is connected to the inner side wall of the ring, and the other end is connected to the fixing block.

[0014] Further, a second load-bearing member is further included. The second load-bearing member includes a second cross beam, and the middle part of the second cross beam is horizontally clamped between the first ring and the second ring.

[0015] Further, the second load-bearing member further includes a support plate. The top end of the support plate is connected to the bottom of the second cross beam, and the bottom of the support plate is used for supporting on the outer surface of the wheel of the spool.

[0016] Further, the second load-bearing member includes a first limiting plate. The first limiting plate is connected to the top of the second cross beam, and the first limiting plate is located on the side of the first cross beam. Preferably, the second load-bearing member further includes a second limiting plate. The second limiting plate is connected to the bottom of the support plate.

[0017] The beneficial effects of the present invention compared with the prior art include: The lifting device for a spool proposed by the present invention includes a first load-bearing member, a connecting member, and a bendable clamping member. The first load-bearing member is snap-connected to the connecting member, and the bendable clamping member is rotatably connected to the connecting member. When it is necessary to lift the spool, the bendable clamping member of the lifting device enters the barrel of the spool, and the handling device lifts the first load-bearing member, indirectly lifting the connecting member, and then lifting the bendable clamping member to an extended state. The first load-bearing member drives the bendable clamping member to extend until the bendable clamping member hooks the step on the inner wall of the barrel of the spool, thereby lifting the entire spool. When putting down the spool, removing the upward acting force of the handling device, the bendable clamping member resets to the bent state, and thus no longer hooks the inner wall of the barrel of the spool, realizing the handling of the spool by hooking the inner wall of the barrel of the spool, avoiding the clamping member contacting the surface of the steel wire rope, and enabling as much steel wire rope as possible to be wound on the surface of the barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings. The drawings are schematic and should not be construed as imposing any limitation on the present invention. In the drawings:

[0019] Figure 1 FIG. 9 is a perspective view of a lifting device for a spool according to Embodiment 1 of the present invention.

[0020] Figure 2 FIG. 13 is a perspective view of the second ring in Embodiment 1 of the present invention.

[0021] Figure 3 FIG. 17 is a perspective view of a lifting device for a spool according to Embodiment 2 of the present invention.

[0022] Figure 4 FIG. 21 is a perspective view of the second load-bearing member in Embodiment 2 of the present invention.

[0023] Figure 5 FIG. 25 is a cross-sectional view of a lifting device for a spool according to Embodiment 2 of the present invention.

[0024] Explanation of reference numerals: A, spool; 1, first load-bearing member; 11, convex block; 12, first cross beam; 121, first end; 122, middle part; 123, second end; 124, first connecting plate; 125, second connecting plate; 13, first longitudinal beam; 2, connecting member; 21, first ring; 22, second ring; 221, ring; 222, reinforcing rib; 223, fixing block; 3, bendable clamping member; 31, pull rod; 32, hook; 4, second load-bearing member; 41, second cross beam; 42, support plate; 43, first limiting plate; 44, second limiting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0026] Embodiment 1

[0027] Combined with Figure 1-2 , this embodiment provides a sling for a spool, which includes a first load-bearing member 1, a connecting member 2 and a bendable clamping member 3. The first load-bearing member 1 is snap-connected to the connecting member 2, and the bendable clamping member 3 is rotatably connected to the connecting member 2. When the first load-bearing member 1 is lifted, the first load-bearing member 1 drives the bendable clamping member 3 to extend until the bendable clamping member 3 hooks the inner wall of the barrel of the spool.

[0028] Based on the above embodiment, the connecting member 2 in this embodiment includes a first ring 21 and a second ring 22. The bottom of the first load-bearing member 1 penetrates through the first ring 21. A convex block 11 is provided at the bottom of the first load-bearing member 1, and the first ring 21 is located above the convex block 11. The convex block 11 is used to prevent the first ring 21 from sliding out from the bottom of the first load-bearing member 1;

[0029] One end of the bendable clamping member 3 is rotatably connected to the first ring 21;

[0030] The second ring 22 is located below the first ring 21, and the second ring 22 is connected to the other end of the bendable clamping member 3.

[0031] When the first load-bearing member 1 is lifted, the first load-bearing member 1 moves upward, and the first ring 21 is blocked by the convex block 11 and then lifted together with the first load-bearing member 1. The bendable clamping member 3 is rotatably connected to the first ring 21 and can be elongated under the lifting action. In addition, the bendable clamping member 3 is rotatably connected to the second ring 22, and the bendable clamping member 3 can rotate along the second ring 22 to hook the step on the inner wall of the barrel.

[0032] Based on the above embodiments, the bendable clamping member 3 in this embodiment includes a plurality of tie rods 31 and a plurality of hooks 32; one end of each of the plurality of tie rods 31 is rotatably connected to the first ring 21, and the other end of each of the plurality of tie rods 31 is rotatably and bendably connected to one of the plurality of hooks 32 in a one-to-one correspondence. The middle parts of the plurality of hooks 32 are rotatably connected to the second ring 22, and the hooks 32 are used to hook the inner wall of the barrel of the spool. When it is necessary to lift the spool, one wheel of the spool is placed on the top and the other wheel is placed on the bottom. The lifting tool is placed on the upper wheel, and the hooks 32 enter the barrel. The handling device lifts the first load-bearing member 1, and the tie rods 31 drive the hooks 32 to straighten from the bent state. Then, the hooks 32 rotate along the second ring 22 to hook the step on the inner wall of the barrel. The second ring 22 provides a supporting force for the hooks 32. Continuing to lift the first load-bearing member 1 can lift the entire spool. When it is necessary to lower the spool, the upward lifting force of the handling device is removed, and the first load-bearing member 1 sinks under the action of gravity. The tie rods 31 and the hooks 32 return to the bent state. During the reset process, the hooks 32 rotate reversely along the second ring 22 to move away from the inner wall of the barrel of the spool, which is convenient for handling.

[0033] Based on the above embodiments, in this embodiment, the bottoms of the plurality of hooks 32 penetrate into the second ring 22 from above the second ring 22, and the second ring 22 provides a supporting force for the hooks 32 when lifting the spool.

[0034] Based on the above embodiments, in this embodiment, one end of the tie rod 31 is provided with a first hole (not marked in the figure but easy to understand), and is rotatably connected to the first ring 21 through the first hole. The other end of the tie rod 31 is provided with a second hole (not marked in the figure but easy to understand). The tie rod 31 is fixedly connected to two connecting plates (not marked in the figure but easy to understand) located on both sides of it through the second hole. The bottom end of the connecting plate is provided with a third hole (not marked in the figure but easy to understand), and the front end of the hook 32 is provided with a fourth hole (not marked in the figure but easy to understand). The hook 32 and the connecting plate are connected by passing a bolt through the third hole and the fourth hole, thereby realizing the rotatable connection between the hook 32 and the tie rod 31.

[0035] Based on the above embodiments, in this embodiment, the middle part of the hook 32 is provided with a fifth hole (not marked in the figure but easy to understand), and the hook 32 is sleeved on the second ring 22 through the fifth hole, thereby realizing the rotatable connection between the hook 32 and the second ring 22.

[0036] Based on the above embodiments, the first load-bearing member 1 in this embodiment includes a first cross beam 12 and a first longitudinal beam 13. The top end of the first longitudinal beam 13 is connected to the middle of the first cross beam, and the bottom end of the first longitudinal beam 13 is inserted into the first ring 21. A convex block 11 is provided at the bottom of the first longitudinal beam 13. The first cross beam 12 is used for lifting and lowering the equipment, and thus for lifting and lowering the spool. The handling equipment in this embodiment is a forklift. The forklift is inserted below the first cross beam 12, and the forklift is started to lift the first cross beam 12, then the entire lifting tool can be lifted.

[0037] Based on the above embodiments, the second ring 22 in this embodiment includes a ring 221, a plurality of reinforcing ribs 222 and a fixing block 223. The plurality of reinforcing ribs 222 and the fixing block 223 are arranged inside the ring 221. One end of each of the plurality of reinforcing ribs 222 is connected to the inner side wall of the ring 221, and the other end is connected to the fixing block 223. The arrangement of the reinforcing ribs 222 and the fixing block 223 can improve the load-bearing capacity of the second ring 22.

[0038] Based on the above embodiments, the number of the plurality of lifting hooks 32 in this embodiment is more than 3. The lifting hooks 32 are evenly distributed on the second ring 22. Three lifting hooks 32 can also meet the lifting requirements. After testing and repeated research, we found that 6 lifting hooks 32 are more reliable, and the lifting process and the lowering process are both very smooth. The number of lifting hooks 32 in this embodiment is 6. In other embodiments, the number can also be 4, 5 or other numbers. When the plurality of lifting hooks 32 are not lifted, they are in a contracted state and can enter the cylinder body. After the plurality of lifting hooks 32 are lifted, they are expanded to hook the steps on the inner wall of the cylinder body. Since the length of the lifting hooks 32 is limited, the steps on the inner wall of the cylinder body are usually arranged at the opening of the cylinder body.

[0039] Based on the above embodiments, the number of the lifting hooks 32 and the tie rods 31 in this embodiment is 6 respectively. The shapes of the first ring 21 and the second ring 22 are hexagons. Each tie rod 31 is rotatably connected to the middle of one side of the first ring 21, and each lifting hook 32 is rotatably connected to the middle of one side of the second ring 22. The hexagonal shape just arranges each tie rod 31 or lifting hook 32 on one side. Compared with the ring with a circular structure, the structure of the hexagonal ring is more stable. Correspondingly, when the number of lifting hooks 32 is 4, the first ring 21 and the second ring 22 can be squares. When the number of lifting hooks 32 is 5, the shapes of the first ring 21 and the second ring 22 can be pentagons, and so on.

[0040] On the basis of the above embodiments, the first cross beam 12 in this embodiment includes a first end portion 121, the middle portion 122 of the first cross beam, and a second end portion 123. The first end portion 121 is connected to the middle portion 122 of the first cross beam, and the middle portion 122 of the first cross beam is connected to the second end portion 123; the width of the first end portion 121 or the second end portion 123 gradually increases in the direction away from the middle portion 122 of the first cross beam. When the forklift lifts the first cross beam 12, the contact area with the first cross beam 12 is increased, facilitating the lifting.

[0041] On the basis of the above embodiments, the first cross beam 12 in this embodiment includes two first connecting plates 124 and a plurality of second connecting plates 125. The two first connecting plates 124 are arranged opposite to each other, and both ends of the plurality of second connecting plates 125 are connected to the side walls of the two first connecting plates 124 respectively, forming a first cross beam 12 with a stable structure.

[0042] Embodiment 2

[0043] Although the spreader in Embodiment 1 can be lifted by a forklift, it cannot be transported to the upper surface of the spool by a handling device until the hook 32 is placed inside the cylinder. Because if the first cross beam 12 is lifted by a forklift or other handling device to lift the spreader to the upper surface of the spool, the hook 32 will rotate. After the hook 32 rotates, it changes from the original contracted state to the open state, and the aperture is larger, so it cannot enter the cylinder. Therefore, in this embodiment, a second load-bearing member 4 is further added on the basis of Embodiment 1, as follows:

[0044] Combined with Figure 1-5 , on the basis of the above embodiments, this embodiment further includes a second load-bearing member 4. The second load-bearing member 4 includes a second cross beam 41, and the middle part of the second cross beam 41 is horizontally stuck between the first ring 21 and the second ring 22. The first ring 21, the second ring 22, and the hook 32 have a limiting effect on the second cross beam 41. The forklift can lift the entire spreader by inserting under the second cross beam 41. However, because the second ring 22 is not lifted, that is, the hook 32 does not rotate, so the plurality of hooks 32 remain in the contracted state and can be placed inside the cylinder.

[0045] On the basis of the above embodiments, the second load-bearing member 4 in this embodiment further includes a support plate 42. The top end of the support plate 42 is connected to the bottom of the second cross beam 41, and the bottom of the support plate 42 is used to support on the outer surface of the wheel of the spool. The support plate 42 can enable the entire spreader to be stably placed on the outer surface of the wheel of the spool.

[0046] Based on the above embodiments, in this embodiment, the second load-bearing member 4 includes a first limiting plate 43. The first limiting plate 43 is connected to the top of the second cross beam 41 and is located on the side of the first cross beam 12. When the forklift is inserted below the first cross beam 12, the first limiting plate 43 can prevent the forklift from sliding out from the side of the first cross beam 12.

[0047] Based on the above embodiments, the second load-bearing member 4 in this embodiment further includes a second limiting plate 44. The second limiting plate 44 is connected to the bottom of the support plate 42. Similarly, the second limiting plate 44 can prevent the forklift from sliding out from the side of the second cross beam 41 when the forklift lifts the second cross beam 41. To prevent the second limiting plate 44 from blocking the hook from entering the cylinder body, the second limiting plate 44 is inclined outwardly on the support plate 42.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs. The terms used in the description of this invention herein are only for the purpose of describing specific embodiments and are not intended to limit the invention. The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

Claims

1. A sling for a spool, characterized in that, It includes a first load-bearing member, a connecting member, and a bendable clamping member. The first load-bearing member is snap-connected to the connecting member, and the bendable clamping member is rotatably connected to the connecting member. When the first load-bearing member is lifted, the first load-bearing member drives the bendable clamping member to extend until the bendable clamping member hooks onto the step on the inner wall of the barrel of the spool. The connecting member includes a first ring and a second ring. The bottom of the first load-bearing member penetrates through the first ring. A convex block is provided at the bottom of the first load-bearing member, and the first ring is located above the convex block. The convex block is used to prevent the first ring from slipping out from the bottom of the first load-bearing member. One end of the bendable clamping member is rotatably connected to the first ring. The second ring is located below the first ring, and the second ring is connected to the middle part of the bendable clamping member. The bendable clamping member includes a plurality of tie rods and a plurality of hooks. One ends of the plurality of tie rods are rotatably connected to the first ring, and the other ends of the plurality of tie rods are rotatably and bendably connected to the plurality of hooks in one-to-one correspondence. The middle parts of the plurality of hooks are rotatably connected to the second ring, and the hooks are used to hook onto the inner wall of the barrel of the spool.

2. The spreader for the spool according to claim 1, characterized in that, The bottoms of the plurality of hooks penetrate through the second ring from above the second ring.

3. The spreader for the spool according to claim 2, wherein, The first load-bearing member includes a first cross beam and a first longitudinal beam. The top end of the first longitudinal beam is connected to the middle part of the first cross beam. The bottom end of the first longitudinal beam penetrates through the first ring, and the convex block is provided at the bottom of the first longitudinal beam. The first cross beam is used for the equipment to lift and lower, and thus lift and lower the spool.

4. The spreader for a spool according to claim 3, wherein, The first cross beam includes a first end part, the middle part of the first cross beam, and a second end part. The first end part is connected to the middle part of the first cross beam, and the middle part of the first cross beam is connected to the second end part. The width of the first end part or the second end part gradually increases in the direction away from the middle part of the first cross beam.

5. The spreader for the spool according to claim 4, characterized in that, The second ring includes a ring, a plurality of reinforcing ribs, and a fixing block. The plurality of reinforcing ribs and the fixing block are arranged inside the ring. One ends of the plurality of reinforcing ribs are connected to the inner side wall of the ring, and the other ends are connected to the fixing block.

6. The spreader for the spool according to claim 5, characterized in that, It further includes a second load-bearing member. The second load-bearing member includes a second cross beam, and the middle part of the second cross beam is horizontally clamped between the first ring and the second ring.

7. The spreader for the spool according to claim 6, wherein, The second load-bearing member further includes a support plate. The top end of the support plate is connected to the bottom of the second cross beam, and the bottom of the support plate is used to support on the outer surface of the wheel of the spool.

8. The spreader for the spool according to claim 7, wherein, The second load-bearing member includes a first limiting plate. The first limiting plate is connected to the top of the second cross beam, and the first limiting plate is located on the side of the first cross beam. The second load-bearing member further includes a second limiting plate. The second limiting plate is connected to the bottom of the support plate.

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