Anti-unhooking tool for crane hook

Abstract

The utility model relates to the technical field of crane equipment, in particular to an anti-unhooking tool for a crane hook. Comprising a plurality of limiting ridges, the limiting ridges are fixedly installed on a lifting hook, the limiting ridges are of an annular structure, limiting columns extending towards the outer side of the lifting hook are installed on the limiting ridges, a lifting rope is hung in the lifting hook and placed between every two adjacent limiting ridges, and an isolation area is formed between every two limiting columns on the side portions of the adjacent limiting ridges; the limiting ridges and the limiting columns are used for limiting the lifting rope, the limiting ridges are arranged at the bottom of the lifting hook, the limiting columns are arranged on the side portion of the lifting hook, and the opening of the lifting hook cannot be shielded, so that the lifting rope with the diameter close to the size of the opening of the lifting hook can be smoothly disassembled and assembled in the lifting hook, and operation convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crane equipment, in particular to a crane hook anti-unhooking tool. Background Art

[0002] During the lifting operation, the lifting rope may slip off the hook due to shaking or incorrect installation on the hook, causing the cargo to fall off accidentally. Therefore, it is necessary to plan the lifting operation plan reasonably and use anti-unhooking tools to limit the position of the lifting rope to ensure the stable use of the hook;

[0003] The existing application number is CN202320369815.1, which is an anti-unhooking hook device. In this patent document, a crossbar structure that rotates inside the hook is used. By adjusting the center of the crossbar, the lifting rope is stably placed in the hook to increase its stability in use. Specifically, it includes a hook body, a hinge seat is provided on the upper part of the inner wall of the opening of the hook body, a hinge shaft is provided on the hinge seat, a hook baffle is provided at the opening of the hook body, and one end of the hook baffle is hinged to the hinge seat through the hinge shaft. The anti-unhooking hook device also includes a limiting device, which includes a U-shaped bracket, two sliders respectively provided on the vertical rods on both sides of the U-shaped bracket, and a sliding crossbar provided between the two sliders;

[0004] However, when the anti-unhooking hook device in the above patent document is in use, for those thicker ropes whose diameters are close to the size of the hook opening, the limiting device will hinder the ropes during the disassembly and assembly process in the hook, which will increase the difficulty of operation. Therefore, the present application provides a crane hook anti-unhooking tool. Utility Model Content

[0005] In order to solve the deficiencies in the above-mentioned prior art, the purpose of the utility model is to provide a crane hook anti-unhooking tool, which limits the movement of the lifting rope in the hook by arranging a limiting component on the outside of the hook. On the basis of the tool's anti-unhooking ability, the lifting rope can be easily disassembled and assembled in the hook, thereby improving operational convenience.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] Provided is a crane hook anti-unhooking tool, comprising a limiting rib, which is fixedly installed on the hook, has a ring-shaped structure and is provided in plurality, and a limiting column extending toward the outside of the hook is installed on the limiting rib, a lifting rope is suspended in the hook, and the lifting rope is placed between two adjacent limiting ribs, and an isolation area is formed between two limiting columns on the sides of adjacent limiting ribs.

[0008] In the present application, an optional technical solution for the connection between the limiting column and the limiting rib is: the limiting column is welded and fixedly installed on the side of the limiting rib.

[0009] In the present application, another optional technical solution for the connection between the limit column and the limit rib is: the limit column is rotatably installed on the side of the limit rib, the rotation angle of the limit column on the limit rib is limited by a fastener, and the fastener and the limit rib are engaged by a threaded screw.

[0010] Furthermore, a plurality of slots are arranged on the outer side of the end of the limiting column close to the limiting rib, and the fastener is plug-connected with one of the plurality of slots.

[0011] Furthermore, two limiting columns are installed on the limiting rib, and the two limiting columns are respectively located on both sides of the hook.

[0012] Furthermore, a ball end is provided at the end of the limiting column; an optional technical solution is: the ball end is integrally formed and provided at the end of the limiting column; another optional technical solution is: a threaded hole is provided inside the ball end, a threaded groove is provided outside the limiting column, and the ball end is installed at the end of the ball end by threaded engagement.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The anti-unhooking tool for crane hooks in the utility model uses limiting ribs and limiting columns to limit the lifting rope. Since the limiting ribs are arranged at the bottom of the lifting hook and the limiting columns are arranged on the sides of the lifting hook, the opening of the lifting hook will not be blocked. Therefore, when facing a lifting rope with a diameter close to the size of the lifting hook opening, it can be smoothly disassembled and assembled in the lifting hook, thereby improving the convenience of operation.

[0015] 2. The anti-unhooking tool for crane hooks in the example of the utility model forms an isolation area between two limiting columns on the sides of adjacent limiting ribs to intercept the lifting rope, limit the movement of the lifting rope in the hook, and realize the anti-unhooking function.

[0016] 3. The crane hook anti-unhooking tool of the utility model example has multiple limiting ribs to form multiple isolation areas. The widths of the multiple isolation areas are different so that they can simultaneously abut against both sides of the ropes with different diameters and be suitable for the use of ropes with different diameters.

[0017] 4. The crane hook anti-unhooking tool of the utility model example rotates the limit column on the side of the limit rib, and limits the rotation angle of the limit column on the limit rib by a fastener, so that the ends of two adjacent limit columns away from the limit rib are abutted together, thereby increasing the effect of preventing the lifting rope from unhooking and moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0019] Figure 1 A schematic diagram of the structure of the hook and the limiting rib provided in the embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the structure in which the limiting column provided in the embodiment of the utility model is fixedly installed on the limiting rib;

[0021] Figure 3 A schematic diagram of the structure in which the limiting column provided in the embodiment of the utility model is rotatably installed on the limiting rib;

[0022] Figure 4 This is a schematic structural diagram of the limiting column, slot and fastener provided in an embodiment of the utility model.

[0023] In the figure: 11 hook, 12 limit rib, 21 limit column, 22 ball end, 23 slot, 24 fastener. DETAILED DESCRIPTION

[0024] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0025] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0026] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. It should also be noted that, for ease of description, only the parts related to the utility model are shown in the drawings.

[0030] Embodiment 1:

[0031] like Figure 1 As shown, this embodiment provides a crane hook anti-unhooking tool, including a limiting rib 12, which is fixedly mounted on a hook 11, the limiting rib 12 is annular in structure and is provided in plurality, and a lifting rope is suspended in the hook 11.

[0032] like Figure 2 As shown, the limiting rib 12 is provided with a limiting column 21 extending toward the outside of the hook 11, and an isolation area is formed between two limiting columns 21 on the sides of adjacent limiting ribs 12. The widths of the plurality of isolation areas are different so as to abut against both sides of suspension ropes of different diameters at the same time.

[0033] In order to increase the anti-unhooking performance of the crane hook anti-unhooking tool on the lifting rope, such as Figure 2 As shown, two limiting posts 21 are installed on the limiting rib 12. The two limiting posts 21 are respectively located on both sides of the hook 11, and simultaneously limit both sides of the hanging rope, thereby increasing the anti-hooking performance of the product.

[0034] When using the crane hook anti-unhooking tool of the present application, the lifting rope is suspended and placed between two adjacent limiting ribs 12, and the side of the lifting rope is overlapped in the isolation area formed by the two limiting columns 21 on the sides of the adjacent limiting ribs 12, so that the lifting rope is intercepted and the movement of the lifting rope in the hook 11 is restricted, thereby realizing the anti-unhooking function; in this state, the limiting ribs 12 and the limiting columns 21 are used to limit the lifting rope. Since the limiting ribs 12 are arranged at the bottom of the hook 11 and the limiting columns 21 are arranged on the side of the hook 11, the opening of the hook 11 will not be blocked, so that when facing a lifting rope with a diameter close to the size of the hook opening, it can also be smoothly disassembled and assembled in the hook, thereby improving the convenience of operation.

[0035] In this embodiment, the limiting column 21 is welded and fixedly installed on the side of the limiting rib 12 .

[0036] like Figure 2 As shown, a ball end 22 is provided at the end of the limiting column 21. Since the diameter of the ball end 22 is larger than the diameter of the limiting column 21, the lifting rope is not easy to fall off from the side of the limiting column 21 when it is not tightened. A strap or rope can also be provided on the outside of the adjacent limiting column 21 to limit the lifting rope, and the ball end 22 is used to prevent the strap or rope from falling off, thereby further increasing the anti-unhooking ability of the product.

[0037] Regarding the connection method between the ball end 22 and the limiting column 21, an optional technical solution is: the ball end 22 is integrally formed and arranged at the end of the limiting column 21;

[0038] Another optional technical solution is: a threaded hole is provided inside the ball end 22, a threaded groove is provided outside the limiting column 21, and the ball end 22 is installed at the end of the ball end 22 by threaded engagement.

[0039] Embodiment 2:

[0040] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 3-4 As shown, in this embodiment, the limit column 21 is rotatably installed on the side of the limit rib 12, and the rotation angle of the limit column 21 on the limit rib 12 is limited by the fastener 24. A plurality of slots 23 are arranged on the outer side of the end of the limit column 21 close to the limit rib 12, and the fastener 24 is plug-connected with one of the plurality of slots 23, and the fastener 24 is engaged with the limit rib 12 through a threaded engagement.

[0041] The limit column 21 is manually rotated, and the rotation angle of the limit column 21 on the limit rib 12 is limited by the fastener 24, so that the ends of two adjacent limit columns 21 away from the limit rib 12 are abutted together, increasing the effect of preventing the lifting rope from unhooking and moving.

[0042] The fastener 24 is inserted into the slot 23 and is engaged with the limiting rib 12 through a threaded engagement, thereby improving the effect of limiting the rotation angle of the limiting column 21 on the limiting rib 12 .

[0043] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other.

[0044] Except for the technical features described in the specification, the other technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present utility model, the other technical features will not be described in detail here.

Claims

1. A crane hook anti-unhooking tool, characterized in that: It comprises a limiting rib (12) arranged on the hook (11), wherein the limiting rib (12) is in an annular structure and a plurality of limiting ribs are arranged, and a limiting column (21) extending toward the outside of the hook (11) is installed on the limiting rib (12); A lifting rope is suspended in the lifting hook (11), and the lifting rope is placed between two adjacent limiting ribs (12). An isolation area for limiting the movement of the lifting rope is formed between two limiting columns (21) on the sides of the adjacent limiting ribs (12).

2. The crane hook anti-unhooking tool according to claim 1, characterized in that: Two limiting columns (21) are installed on the limiting rib (12), and the two limiting columns (21) are respectively located on both sides of the hook (11).

3. The crane hook anti-unhooking tool according to claim 1, characterized in that: The limiting column (21) is welded and fixedly mounted on the side of the limiting rib (12).

4. The crane hook anti-unhooking tool according to claim 1, characterized in that: The limiting column (21) is rotatably mounted on the side of the limiting rib (12), and the rotation angle of the limiting column (21) on the limiting rib (12) is limited by a fastener (24).

5. The crane hook anti-unhooking tool according to claim 4, characterized in that: A plurality of slots (23) are arranged outside the end of the limiting column (21) close to the limiting rib (12), and the fastener (24) is plug-connected to one of the plurality of slots (23).

6. The crane hook anti-unhooking tool according to claim 4, characterized in that: The fastener (24) is engaged with the limiting rib (12) via a threaded engagement.

7. The crane hook anti-unhooking tool according to any one of claims 1 to 6, characterized in that: The end of the limiting column (21) is provided with a ball end (22).

8. The crane hook anti-unhooking tool according to claim 7, characterized in that: The ball end (22) is integrally formed and arranged at the end of the limiting column (21).

9. The crane hook anti-unhooking tool according to claim 7, characterized in that: The ball end (22) is provided with a threaded hole inside, the limiting column (21) is provided with a threaded groove outside, and the ball end (22) is installed at the end of the ball end (22) by means of threaded engagement.

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