Multi-section type lifting hook safety anti-falling device of crane

Abstract

The utility model discloses a multi-section type lifting hook safety anti-falling device of a crane, which relates to the technical field of crane accessories and comprises a hook body, a connecting rod and a connecting ring, the connecting rod is vertically arranged at the top end of the hook body; the bottom of the connecting ring is connected to the bottom of the connecting rod in a sleeving mode, and a lifting rope connecting opening is formed between the top of the inner ring of the connecting ring and the top end of the connecting rod, so that when medium-and-small-weight goods needing to be prevented from large-amplitude shaking are lifted, a worker can slide the push block upwards, and the push block drives the top face of the multi-section adjusting clamping block to make contact with a lifting rope; the lifting rope is clamped by matching with the inner wall of the top of the lifting rope connecting opening, finally, the adjusting bolt is screwed in, after the adjusting bolt is in threaded connection with the inner threaded hole in the position, the limiting work of the multi-section adjusting clamping block is completed, finally, the hook body is vertically located at the bottom of the lifting rope, operation is easy, and goods are effectively prevented from shaking greatly when being vertically lifted.

Description

Technical Field

[0001] This utility model relates to the field of crane accessories technology, and more specifically to a multi-section hook safety anti-detachment device for cranes. Background Technology

[0002] A crane is a multi-action lifting machine that vertically lifts and horizontally moves heavy objects within a certain range. It is also known as an overhead crane, gantry crane, or hoist.

[0003] The hook and rope of existing small cranes are movable. When lifting small-weight goods that need to be protected from large swaying, such as precision instruments, the movable hook and rope are prone to large swaying during vertical ascent. Utility Model Content

[0004] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures particularly pointed out in the description and other accompanying drawings.

[0005] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a multi-section hook safety anti-detachment device for cranes.

[0006] To achieve the above objectives, the technical solution of this utility model is: a multi-section hook safety anti-detachment device for a crane, comprising: a hook body, a connecting rod, and a connecting ring; the connecting rod is vertically disposed at the top of the hook body; the bottom of the connecting ring is sleeved on the bottom of the connecting rod, and a rope connection port is formed between the top of the inner ring of the connecting ring and the top of the connecting rod.

[0007] The top surface of the connecting rod is provided with an adjustment slot, and multiple adjustment clamping blocks are movably arranged in the adjustment slot. A strip-shaped sliding hole communicating with the adjustment slot is vertically arranged on one side of the top of the connecting rod. A push block that slides through the strip-shaped sliding hole is arranged on one side of the multiple adjustment clamping blocks. Several internal threaded holes are arranged sequentially from top to bottom on the front end face of the multiple adjustment clamping blocks. An adjustment bolt is screwed on the front end face of the connecting rod, and the inner end of the adjustment bolt is threadedly connected to one of the internal threaded holes.

[0008] Preferably, to improve the strength of the connection, the connecting rod and the hook body are integrally molded or welded together.

[0009] As a preferred option, for ease of processing, the multi-segment adjustable clamping block is a structure of either a prism or a cylinder.

[0010] As a preferred option, to facilitate operation by staff, the end face of the push block away from the multi-stage adjustment clamping block is provided with an anti-slip groove to improve contact friction.

[0011] Preferably, for connection positioning, the bottom outer side of the connecting rod has an annular groove for limiting the connection ring.

[0012] Preferably, for safety and to prevent slippage, an anti-slip plate is hinged to the opening of the hook body, and a torsion spring is provided at the hinge joint between the anti-slip plate and the hook body.

[0013] As a preferred option, in order to improve the clamping effect on the suspension rope, a contact piece is fixedly embedded on the top surface of the multi-stage adjustable clamping block, and the top surface of the contact piece is a smooth surface or a frosted surface.

[0014] The beneficial effects of this utility model are as follows: When lifting small to medium-weight goods that need to avoid large-scale swaying, the operator can slide the push block upwards, causing the push block to drive the top surface of the multi-section adjusting clamping block to contact the lifting rope. This, in conjunction with the inner wall of the top of the lifting rope connection port, clamps the lifting rope. Finally, the adjusting bolt is screwed in. After the adjusting bolt is threaded into the internal threaded hole at this position, the multi-section adjusting clamping block's limiting function is completed, ultimately making the hook vertically positioned at the bottom of the lifting rope. The operation is simple and effectively prevents large-scale swaying of the goods when they are vertically lifted. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a multi-section hook safety anti-detachment device for a crane according to the present invention;

[0016] Figure 2 This is a partial cross-sectional structural diagram of a multi-section hook safety anti-detachment device for a crane according to the present invention;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the connection between the multi-section hook safety anti-detachment device and the lifting rope of a crane according to the present invention;

[0018] Figure 4 This is a top view of the multi-segment adjustable clamping block.

[0019] Reference numerals: Hook body-1, Connecting rod-2, Connecting ring-3, Adjusting slot-21, Multi-segment adjusting clamping block-22, Strip-shaped sliding hole-23, Push block-24, Internal threaded hole-25, Adjusting bolt-26, Anti-detachment plate-11, Lifting rope-4. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] Please see Figure 1-4 This utility model provides a multi-section hook safety anti-detachment device for a crane, including: hook body 1, connecting rod 2, and connecting ring 3; the connecting rod 2 is vertically disposed at the top of the hook body 1; the bottom of the connecting ring 3 is sleeved on the bottom of the connecting rod 2, and the top of the inner ring of the connecting ring 3 forms a rope connection port between the top of the connecting rod 2 and the top of the connecting rod 2;

[0023] The top surface of the connecting rod 2 is provided with an adjustment slot 21, and a multi-segment adjustment clamping block 22 is movably arranged in the adjustment slot 21. A strip-shaped sliding hole 23 communicating with the adjustment slot 21 is vertically arranged on one side of the top of the connecting rod 2. A push block 24 that slides through the strip-shaped sliding hole 23 is provided on one side of the multi-segment adjustment clamping block 22. A number of internal threaded holes 25 are arranged sequentially from top to bottom on the front end face of the multi-segment adjustment clamping block 22. An adjustment bolt 26 is screwed on the front end face of the connecting rod 2, and the inner end of the adjustment bolt 26 is threadedly connected to one of the internal threaded holes 25.

[0024] When lifting small to medium-weight goods that need to be lifted without significant swaying, the operator can slide the push block 24 upwards, causing the top surface of the multi-section adjusting clamping block 22 to contact the lifting rope 4. This, in conjunction with the inner wall of the top of the lifting rope connection port, clamps the lifting rope 4. Finally, the adjusting bolt 26 is screwed in. After the adjusting bolt 26 is threaded into the internal threaded hole 25 at this position, the multi-section adjusting clamping block 22 completes its limiting function, ultimately positioning the hook 1 vertically at the bottom of the lifting rope 4. This method is simple to operate and effectively prevents significant swaying of goods when lifted vertically.

[0025] According to some embodiments of this application, optionally, in order to improve the firmness of the connection, the connecting rod 2 and the hook body 1 are integrally formed or welded and fixedly connected, preferably integrally formed.

[0026] According to some embodiments of this application, optionally, for ease of processing, the multi-segment adjustment clamping block 22 is a structure of prism or cylinder, preferably a cylindrical structure. However, this utility model is not limited to this, and the multi-segment adjustment clamping block 22 can also be a columnar structure with an elliptical cross-section.

[0027] According to some embodiments of this application, optionally, in order to facilitate operation by staff, the end face of the push block 24 away from the multi-segment adjustment clamping block 22 is provided with an anti-slip groove to improve contact friction.

[0028] According to some embodiments of this application, optionally, for connection positioning, the bottom outer side of the connecting rod 2 has an annular groove for limiting the connection ring 3.

[0029] According to some embodiments of this application, optionally, for safety and to prevent slippage, an anti-slip plate 11 is hinged to the opening of the hook body 1, and a torsion spring is provided at the hinge joint between the anti-slip plate 11 and the hook body 1.

[0030] According to some embodiments of this application, optionally, in order to improve the clamping effect on the suspension rope, a contact piece 221 is fixedly embedded on the top surface of the multi-segment adjustable clamping block 22. The top surface of the contact piece 221 is a smooth surface or a frosted surface. The contact end face of the contact piece 221 is selected according to the material of the suspension rope 4. When the suspension rope 4 has a certain wear resistance, the top surface of the contact piece 221 is selected to be a frosted surface. When the surface of the suspension rope 4 is rough but not wear-resistant, the top surface of the contact piece 221 is selected to be a smooth surface.

[0031] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0032] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the present invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0033] Furthermore, the described features or characteristics may be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented without the aforementioned one or more specific details or may be implemented using other methods, components, materials, etc.

Claims

1. A multi-section hook safety anti-detachment device for a crane, characterized in that, include: Hook body (1); The connecting rod (2) is vertically installed at the top of the hook body (1); The bottom of the connecting ring (3) is fitted onto the bottom of the connecting rod (2), and the top of the inner ring of the connecting ring (3) forms a rope connection port between the top of the connecting rod (2); The top surface of the connecting rod (2) is provided with an adjustment slot (21), and a multi-segment adjustment clamping block (22) is movably provided in the adjustment slot (21). A strip-shaped sliding hole (23) communicating with the adjustment slot (21) is provided vertically on one side of the top of the connecting rod (2). A push block (24) that slides through the strip-shaped sliding hole (23) is provided on one side of the multi-segment adjustment clamping block (22). A number of internal threaded holes (25) are provided on the front end face of the multi-segment adjustment clamping block (22) from top to bottom. An adjustment bolt (26) is screwed on the front end face of the connecting rod (2). The inner end of the adjustment bolt (26) is threadedly connected to one of the internal threaded holes (25).

2. The multi-section hook safety anti-detachment device for a crane according to claim 1, characterized in that, The connecting rod (2) and the hook body (1) are integrally formed or welded and fixedly connected.

3. The multi-section hook safety anti-detachment device for a crane according to claim 1, characterized in that, The multi-segment adjustable clamping block (22) is a structure of prism or cylinder.

4. A multi-section hook safety anti-detachment device for a crane according to claim 1, characterized in that, The end face of the push block (24) away from the multi-stage adjustment clamping block (22) is provided with an anti-slip groove to improve contact friction.

5. A multi-section hook safety anti-detachment device for a crane according to claim 1, characterized in that, The bottom outer side of the connecting rod (2) has an annular groove for limiting the connection of the connecting ring (3).

6. A multi-section hook safety anti-detachment device for a crane according to claim 1, characterized in that, The opening of the hook body (1) is hinged to an anti-detachment plate (11), and a torsion spring is provided at the hinge point between the anti-detachment plate (11) and the hook body (1).

7. A multi-section hook safety anti-detachment device for a crane according to claim 4, characterized in that, The top surface of the multi-segment adjustable clamping block (22) is fixedly embedded with a contact piece (221).

8. A multi-section hook safety anti-detachment device for a crane according to claim 7, characterized in that, The top surface of the contact piece (221) is either smooth or frosted.

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