A three-claw sling

Abstract

The utility model relates to the field of slings, and discloses a three-claw sling, including a chassis and three hooks, wherein the top of the chassis is fixedly connected to a column, the top of the column is fixedly connected to a limit plate, a three-claw lifting mechanism is arranged between the limit plate, the chassis, the column and the three hooks, and a lifting ring mechanism is arranged at the top of the column, and the three-claw lifting mechanism includes a sliding plate that is slidably sleeved on the outside of the column, and the three hooks are all rotatably connected to the top of the sliding plate. The utility model has the following advantages and effects: the sling is in the shape of three claws, and when in use, it is placed in the opening of the structure, and the three claws are retracted and entered. After being placed in the hole, the three claws return to a scattered state, and when lifting, the three claws can hook the inner side of the hole of the steel component to lift the steel component, and after the lifting is completed, the retractable lifting rod on the sling is lifted to retract the three claws, and the steel component can be taken out of the hole of the steel component, making it more convenient to lift longer steel components.

Description

Technical Field

[0001] The utility model relates to the technical field of slings, in particular to a three-claw sling. Background Art

[0002] A sling refers to a device used in lifting machinery to lift heavy objects. The most commonly used slings for lifting finished objects are hooks, slings, rings, lifting suction cups, clamps and forks, etc., which are widely used in the lifting and hoisting industry. A three-claw sling is one of the commonly used slings. After searching: a three-claw sling with patent number CN218465338U includes a suspension rod, a lifting claw and a support rod, the upper end of the suspension rod is provided with a lifting hole, the upper end of the lifting claw is connected to the suspension rod, and the lower end of the suspension rod is hinged to the suspension rod through the support rod, the lifting claw includes a suspension arm and a hook rod, the upper end of the suspension arm is connected to the suspension rod, the support rod is hinged to the lower end of the suspension arm, the lower end of the suspension arm is provided with a mounting groove, the lower end of the hook rod is provided with a hook, the upper end of the hook rod is provided with a mounting plate that matches the mounting groove, and the mounting plate and the suspension arm are connected by bolts. And an electric three-claw hoist with patent number CN220886725U, which relates to the technical field of lifting equipment to solve the technical problems of inconvenient use and poor applicability in the prior art. The device includes a main mounting body, an opening and closing grabbing assembly, a lifting mechanism, a power unit, an electric control box and a power supply module. A accommodating structure is arranged in the main mounting body, and the power unit, the electric control box and the power supply module are all arranged in the accommodating structure, and the power unit and the power supply module are both electrically connected to the electric control box; the lifting mechanism passes through the main mounting body, and the lifting mechanism is connected to the power unit.

[0003] However, for the lifting of longer steel structures, it is necessary to first tie the two ends of the steel structure with steel cables or strong ropes and then hang the hooks. This process is more troublesome. At the same time, the above patent can only lift the circular steel structure from the outside, but it is not conducive to lifting from the opening of the steel structure, and it is not conducive to lifting longer steel structures. Therefore, we propose a three-claw sling to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a three-claw sling, which is in the shape of three claws. When in use, it is put into an opening of a structure, and the three claws are retracted to enter. After being put into the hole, the three claws resume to a scattered state. When lifting, the three claws can hook the inner side of the hole of the steel component to lift the steel component. After the lifting is completed, the retractable lifting rod on the sling is lifted to retract the three claws, and the steel component can be taken out from the hole of the steel component, making it more convenient to lift longer steel components.

[0005] The above technical purpose of the utility model is achieved through the following technical scheme: it includes a chassis and three hooks, the top of the chassis is fixedly connected with a column, the top of the column is fixedly connected with a limiting plate, a three-claw lifting mechanism is arranged between the limiting plate, the chassis, the column and the three hooks, and a lifting ring mechanism is arranged at the top of the column.

[0006] The utility model is further configured as follows: the three-claw lifting mechanism includes a sliding plate slidably sleeved on the outside of the column, three hooks are rotatably connected to the top of the sliding plate, the sliding plate is movably abutted against the top of the chassis, and the three hooks are movably abutted against the top of the chassis.

[0007] By adopting the above technical scheme, when using it, it is put into the opening of the steel component, and the three hooks are abutted by the top of the steel component, so that the three hooks automatically deflect upward and shrink to enter. After being put into the hole, the three hooks are not abutted and squeezed by the top of the steel component, so that the three hooks restore to a scattered state. As shown in the figure, when lifting, the lifting ring moves up, which will drive the limit plate, the column and the chassis to move up synchronously. Because the three hooks are abutted against the top of the chassis, the three hooks move up together with the chassis. When the three hooks move up, they can hook the top wall of the hole of the steel component to lift the steel component, making the lifting more convenient and efficient.

[0008] The utility model is further configured as follows: six support plates are fixedly connected to the top of the sliding plate, a same screw rod is fixedly connected between two support plates, the hook claw is rotatably sleeved on the outside of the screw rod, a through hole is opened on the front side of the support plate, the screw rod is movably sleeved in two through holes, a nut is threadedly sleeved on the outer side of the screw rod, and the nut movably abuts against one side of the corresponding support plate.

[0009] By adopting the above technical solution, the installation and disassembly of the hook claw is facilitated, and the disassembly, maintenance and replacement of the hook claw in the later stage is convenient.

[0010] The utility model is further configured as follows: a sliding hole is opened on the top of the sliding plate, and the upright column is slidably sleeved in the sliding hole.

[0011] By adopting the above technical solution, it is convenient to arrange the sliding sleeve of the sliding plate on the column.

[0012] The utility model is further configured as follows: a same return spring is fixedly connected between the sliding plate and the limiting plate, and the return spring is sleeved on the outer side of the column.

[0013] By adopting the above technical solution and setting the reset spring, the sliding plate can be squeezed when placed in the opening of the steel component to prevent the sliding plate and the hook from moving up together and making the hook unable to deflect and shrink upward.

[0014] The utility model is further configured as follows: the lifting ring mechanism comprises a turntable rotatably connected in the limit plate, the top of the turntable is fixedly connected with a rotating shaft, the top end of the rotating shaft is fixedly connected with a sleeve, and a lifting ring is movably sleeved in the sleeve.

[0015] By adopting the above technical solution and setting the rotating shaft, the lifting ring can be rotated to adjust the orientation during lifting, and the setting of the lifting ring and the sleeve ring facilitates connection with the lifting equipment.

[0016] The utility model is further configured as follows: a rotation groove is provided in the limit plate, and the turntable is rotatably arranged in the rotation groove.

[0017] By adopting the above technical solution, it is convenient to rotatably set the turntable in the limit plate.

[0018] The utility model is further configured as follows: a retractable lifting rod is fixedly connected to the top of the sliding plate.

[0019] By adopting the above technical solution, after the lifting is completed, the retractable lifting rod on the sling is lifted, and the retracted lifting rod drives the upper part of the sliding plate. The upward movement of the sliding plate drives the upward movement of the three hooks. At the same time, the three hooks retract upward, so that it can be taken out of the hole in the steel component.

[0020] The beneficial effects of the utility model are:

[0021] 1. When the utility model is used, it is placed in the opening of the steel member, and the three hooks are abutted by the top of the steel member, so that the three hooks automatically deflect upward and shrink into the hole. After being placed in the hole, the three hooks are not abutted and squeezed by the top of the steel member, so that the three hooks return to a scattered state. Figure 2 shown.

[0022] 2. When the utility model is hoisted, the lifting ring moves up, which will drive the limit plate, the column and the chassis to move up synchronously. Because the three hooks are in contact with the top of the chassis, the three hooks move up together with the chassis. When the three hooks move up, they can hook the top wall of the hole in the steel component to lift the steel component, making the hoisting more convenient and efficient.

[0023] 3. After the lifting is completed, the utility model lifts the retractable lifting rod on the sling, which drives the upper cover of the sliding plate. The upward movement of the sliding plate drives the upward movement of the three hooks. At the same time, the three hooks retract upward to take them out of the holes in the steel structure, making the lifting more convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a structural schematic diagram of a three-claw sling proposed by the utility model;

[0026] Figure 2 A cross-sectional view of a three-claw sling proposed by the utility model;

[0027] Figure 3 for Figure 2 Schematic diagram of the structure of part A.

[0028] In the figure, 1, chassis; 2, sliding plate; 3, hook claw; 4, support plate; 5, screw rod; 6, nut; 7, return spring; 8, column; 9, limit plate; 10, rotating shaft; 11, collar; 12, lifting ring; 13, retractable lifting rod; 14, sliding hole; 15, rotating groove; 16, turntable. DETAILED DESCRIPTION

[0029] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1 — Figure 3 The utility model provides a three-claw lifting device, including a chassis 1 and three hooks 3. The top of the chassis 1 is fixedly connected with a column 8, the top of the column 8 is fixedly connected with a limiting plate 9, a three-claw lifting mechanism is arranged between the limiting plate 9, the chassis 1, the column 8 and the three hooks 3, and a lifting ring mechanism is arranged on the top of the column 8.

[0031] Preferably, the three-claw lifting mechanism includes a sliding plate 2 slidably mounted on the outside of the column 8, three hooks 3 are rotatably connected to the top of the sliding plate 2, the sliding plate 2 is movably abutted against the top of the chassis 1, and the three hooks 3 are movably abutted against the top of the chassis 1.

[0032] Preferably, six support plates 4 are fixedly connected to the top of the sliding plate 2 , a same screw rod 5 is fixedly connected between two support plates 4 , and the hook claw 3 is rotatably sleeved on the outer side of the screw rod 5 .

[0033] Preferably, the front side of the support plate 4 is provided with through holes, the screw rod 5 is movably sleeved in two through holes, the outer thread sleeve of the screw rod 5 is provided with a nut 6, and the nut 6 is movably abutted against one side of the corresponding support plate 4.

[0034] Preferably, a sliding hole 14 is opened on the top of the sliding plate 2, and the column 8 is slidably sleeved in the sliding hole 14.

[0035] Preferably, a same return spring 7 is fixedly connected between the sliding plate 2 and the limiting plate 9 .

[0036] Preferably, the return spring 7 is sleeved on the outer side of the column 8 .

[0037] Preferably, the lifting ring mechanism includes a turntable 16 rotatably connected to the limiting plate 9, the top of the turntable 16 is fixedly connected to a rotating shaft 10, the top of the rotating shaft 10 is fixedly connected to a sleeve 11, and a lifting ring 12 is movably sleeved in the sleeve 11.

[0038] Preferably, a rotation groove 15 is defined in the limiting disk 9 , and a rotating disk 16 is rotatably disposed in the rotation groove 15 .

[0039] Preferably, a retractable lifting rod 13 is fixedly connected to the top of the sliding plate 2 .

[0040] The utility model has a three-claw shape. When it is used, it is placed in the opening of the steel component. The three hook claws 3 are abutted by the top of the steel component, so that the three hook claws 3 automatically deflect upward and shrink into the hole. After being placed in the hole, the three hook claws 3 are not abutted and squeezed by the top of the steel component, so that the three hook claws 3 return to a scattered state. Figure 2 As shown, during lifting, the lifting ring 12 moves up, which will drive the limit plate 9, the column 8 and the chassis 1 to move up synchronously. Because the three hooks 3 are in contact with the top of the chassis 1, the three hooks 3 move up together with the chassis 1. When the three hooks 3 move up, they can hook the top wall of the hole in the steel component to lift the steel component, making the lifting more convenient and efficient. After the lifting is completed, the retractable lifting rod 13 on the sling is lifted. The retracted lifting rod 13 drives the upper part of the sliding plate 2. The upward movement of the sliding plate 2 drives the three hooks 3 to move up. At the same time, the upward contraction of the three hooks 3 can take it out of the hole in the steel component, making the lifting of longer steel components more convenient and the use effect better.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A three-claw sling, characterized in that: The utility model comprises a chassis (1) and three hook claws (3), wherein the top of the chassis (1) is fixedly connected to a column (8), the top of the column (8) is fixedly connected to a limit plate (9), a three-claw lifting mechanism is arranged between the limit plate (9), the chassis (1), the column (8) and the three hook claws (3), and a lifting ring mechanism is arranged at the top of the column (8).

2. A three-claw sling according to claim 1, characterized in that: The three-claw lifting mechanism comprises a sliding plate (2) slidably sleeved on the outside of a column (8), three hook claws (3) are rotatably connected to the top of the sliding plate (2), the sliding plate (2) is movably abutted against the top of a chassis (1), and the three hook claws (3) are movably abutted against the top of the chassis (1).

3. A three-claw sling according to claim 2, characterized in that: Six support plates (4) are fixedly connected to the top of the sliding plate (2), a same screw rod (5) is fixedly connected between two support plates (4), and the hook claw (3) is rotatably sleeved on the outside of the screw rod (5).

4. A three-claw sling according to claim 3, characterized in that: The front side of the support plate (4) is provided with through holes, the screw rod (5) is movably sleeved in two through holes, the outer thread sleeve of the screw rod (5) is provided with a nut (6), and the nut (6) is movably abutted against one side of the corresponding support plate (4).

5. A three-claw sling according to claim 2, characterized in that: A sliding hole (14) is provided on the top of the sliding plate (2), and the upright column (8) is slidably sleeved in the sliding hole (14).

6. A three-claw sling according to claim 2, characterized in that: A common return spring (7) is fixedly connected between the sliding plate (2) and the limiting plate (9).

7. A three-claw sling according to claim 6, characterized in that: The return spring (7) is sleeved on the outer side of the column (8).

8. A three-claw sling according to claim 1, characterized in that: The lifting ring mechanism comprises a rotating disk (16) rotatably connected in a limiting disk (9), the top of the rotating disk (16) is fixedly connected to a rotating shaft (10), the top of the rotating shaft (10) is fixedly connected to a sleeve (11), and a lifting ring (12) is movably sleeved in the sleeve (11).

9. A three-claw sling according to claim 8, characterized in that: A rotation groove (15) is provided in the limiting plate (9), and the rotating plate (16) is rotatably arranged in the rotation groove (15).

10. A three-claw sling according to claim 2, characterized in that: A retractable lifting rod (13) is fixedly connected to the top of the sliding plate (2).

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