Lifting hook fixing mechanism of crane

Abstract

The utility model relates to the technical field of lifting hooks, and discloses a lifting hook fixing mechanism of a crane, which comprises a fixing block, a connecting column is slidably connected in the fixing block, a stabilizing component is arranged on the outer wall of the connecting column, a clamping component is arranged in the connecting column, and a connecting block is arranged on the outer wall of the connecting column. And the bottom of the connecting block is fixedly connected with a lifting hook, the outer wall of the lifting hook is slidably connected with an elastic blocking piece, the stabilizing assembly comprises a fixing column, the outer wall of the fixing column is slidably connected into the connecting column, a containing groove is formed in the connecting column, and a sliding rail is arranged in the connecting column. According to the lifting device, the limiting disc and the fixing column are driven by the connecting block and matched with the first spring, self-adaptive movement of the clamp is achieved, so that different lifting hooks are centered and stabilized, shaking is prevented, the problem that the lifting hooks slide on the outer wall of the connecting column due to the fact that the lifting device is prone to being affected by the outside when lifted is solved, and stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hooks, in particular to a hook fixing mechanism of a crane. Background Art

[0002] During the operation of a crane, the hook fixing mechanism plays a vital role. It needs to ensure the stability and safety of the hook when lifting heavy objects to prevent accidents. With the continuous development of industry, the application scenarios of cranes are becoming increasingly diversified, and the requirements for the hook fixing mechanism are becoming higher and higher. It must not only adapt to the use requirements of hooks of different specifications, but also be able to maintain reliable performance in complex and changeable working environments to avoid safety hazards caused by problems such as hook shaking or loose connecting columns. This has prompted continuous innovation and improvement of related technologies.

[0003] Some existing crane hook fixing mechanisms typically utilize a relatively simple rigid connection method. For example, the hook is directly fixed to a connecting column via bolts or welding, and the connecting column is then connected to the crane's boom and other components. This structure lacks a flexible adjustment mechanism between the hook and the connecting column, making it difficult to accurately adapt hooks of different specifications. Furthermore, in the face of external vibrations and shocks, the hook is prone to shaking due to the lack of effective buffering and adaptive adjustment structure, and the connecting column is also prone to loosening due to uneven force, affecting the safety and stability of the entire lifting operation.

[0004] The existing technology lacks an adaptive adjustment structure, making it difficult to ensure that the hook remains stably in the ideal position when handling hooks of different specifications. This often results in the hook sliding on the outer wall of the connecting column. This is particularly pronounced during the lifting process, when affected by external factors such as wind and the swinging of the load. This not only reduces lifting accuracy but also increases safety risks, easily leading to serious accidents such as hook detachment and loss of control of the load. These serious threats pose a threat to the safety of on-site workers and the integrity of surrounding equipment and facilities. Therefore, a crane hook fixing mechanism is proposed to address this issue. Utility Model Content

[0005] In order to remedy the above deficiencies, the present invention provides a hook fixing mechanism for a crane, which aims to improve the problem in the prior art that the hook is easily affected by external factors and causes it to slide on the outer wall of the connecting column.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A hook fixing mechanism for a crane comprises a fixing block, a connecting column slidably connected to the fixing block, a stabilizing assembly provided on the outer wall of the connecting column, a clamping assembly provided on the inner wall of the connecting column, a connecting block provided on the outer wall of the connecting column, a hook fixedly connected to the bottom of the connecting block, and an elastic blocking piece slidably connected to the outer wall of the hook;

[0008] The stabilizing assembly includes a fixing column, an outer wall of the fixing column is slidably connected to the inside of the connecting column, a placement groove is provided inside the connecting column, a slide rail is provided inside the connecting column, the outer wall of the fixing column is fixedly connected to a limiting disc, a spring 1 is provided inside the connecting column, one end of the spring 1 is fixedly connected to the outer wall of the limiting disc, and the other end of the spring 1 is fixedly connected to the inner wall of the connecting column, the outer wall of the fixing column is fixedly connected to a clamp, the bottom of the clamp is fixedly connected to a slider, and the outer wall of the slider is slidably connected to the inside of the slide rail;

[0009] As a further description of the above technical solution:

[0010] The clamping assembly includes a rotating column, the outer wall of which is slidably connected to the interior of the connecting column;

[0011] As a further description of the above technical solution:

[0012] One end of the rotating column is fixedly connected to a rotating knob, and the outer wall of the rotating column is fixedly connected to a rotating disk;

[0013] As a further description of the above technical solution:

[0014] A limiting groove is provided inside the rotating disk, and a fixed disc is slidably connected inside the connecting column;

[0015] As a further description of the above technical solution:

[0016] A clamping column is fixedly connected to the interior of the fixed disc, and the outer wall of the clamping column is slidably connected to the interior of the connecting column;

[0017] As a further description of the above technical solution:

[0018] A sliding column is fixedly connected to the interior of the clamping column, and an outer wall of the sliding column is slidably connected to the interior of the limiting groove;

[0019] As a further description of the above technical solution:

[0020] A second spring is sleeved on the outer wall of the clamping column. One end of the second spring is fixedly connected to the outer wall of the fixed disc, and the other end of the second spring is fixedly connected to the inner wall of the connecting column.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the clamp realizes its movement function by placing a connecting block. When the connecting block is placed, the limiting disc and the fixed column are driven by the connecting block and cooperate with spring 1 to realize adaptive movement of the clamp, thereby centering and stabilizing different hooks to prevent shaking. This solves the problem that the hook is easily affected by external factors when the device is lifted, causing it to slide on the outer wall of the connecting column, and improves stability.

[0023] 2. In the present invention, the clamping column realizes its movement function by rotating the knob. When the knob is rotated, the knob drives the turntable and the sliding column and cooperates with the second spring to realize the sliding of the clamping column inside the connecting column, thereby fixing the connecting column to prevent it from slipping, solving the problem that the connecting column is easily affected by external factors and sliding, and improving the fixing strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of a hook fixing mechanism of a crane proposed in the utility model;

[0025] Figure 2 This is a structural schematic diagram of a connecting column of a hook fixing mechanism of a crane proposed in the utility model;

[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0028] Legend:

[0029] 1. Connecting column; 2. Knob; 3. Fixed block; 4. Clamping column; 5. Hook; 6. Elastic baffle; 7. Connecting block; 8. Rotating column; 9. Placement slot; 10. Spring 1; 11. Limiting disk; 12. Fixed column; 13. Clamp; 14. Slider; 15. Slide rail; 16. Limiting slot; 17. Turntable; 18. Spring 2; 19. Fixed disk; 20. Sliding column. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figure 1 - Figure 3The utility model provides an embodiment of a hook fixing mechanism for a crane, comprising a fixing block 3, which is cast from high-strength alloy steel and has excellent pressure and wear resistance. A connecting column 1 is slidably connected to the inside of the fixing block 3, a stabilizing component is provided on the outer wall of the connecting column 1, a holding component is provided inside the connecting column 1, a connecting block 7 is provided on the outer wall of the connecting column 1, a hook 5 is fixedly connected to the bottom of the connecting block 7, and an elastic baffle 6 is slidably connected to the outer wall of the hook 5;

[0032] The stabilizing component includes a fixed column 12, the outer wall of the fixed column 12 is slidably connected to the inside of the connecting column 1, a placement groove 9 is opened inside the connecting column 1, a slide rail 15 is opened inside the connecting column 1, and the outer wall of the fixed column 12 is fixedly connected to a limiting disc 11. The limiting disc 11 is made of thick metal plates and has sufficient strength and quality to effectively limit the displacement range of the fixed column 12. A spring 10 is provided inside the connecting column 1, one end of the spring 10 is fixedly connected to the outer wall of the limiting disc 11, and the other end of the spring 10 is fixedly connected to the inner wall of the connecting column 1. The outer wall of the fixed column 12 is fixedly connected to a clamp 13, and the clamp 13 has a special shape and surface texture that is compatible with the connecting block 7 to enhance the friction and stability of the clamping. The bottom of the clamp 13 is fixedly connected to a slider 14, and the outer wall of the slider 14 is slidably connected to the inside of the slide rail 15.

[0033] Specifically, when performing the connection operation between the hook 5 and the connecting column 1, the connecting block 7 needs to be specially processed to achieve stable installation. First, the operator pulls the connecting block 7 downward. Since the top of the clamp 13 is designed with an inclined surface, during the movement of the connecting block 7, its inclined surface interacts with the clamp 13 to generate a driving force, prompting the clamp 13 to start moving. At the same time, the slider 14 connected to the clamp 13 will slide inside the slide rail 15, and the fixed column 12 will also be displaced under the drive of the clamp 13, thereby driving the limiting disc 11 to slide along the set path. In this process, the spring 10 is compressed and stores elastic potential energy. When the connecting block 7 is properly placed, the spring 10 is The spring 10 releases elastic potential energy by virtue of its own rebound characteristics, pushing the clamp 13 to rebound in the opposite direction, thereby tightly clamping the connecting blocks 7 of different specifications, effectively adapting to the diverse connection requirements of the hook 5, ensuring the stability of the hook 5 on the connecting column 1, and being able to adapt to hooks 5 of various specifications. There is no need to design a separate fixing mechanism for each hook 5, which reduces equipment cost and maintenance complexity, and can be accurately positioned in the middle position of the connecting column 1, thereby improving the stability and safety of the hook 5 during the lifting process, reducing the risk of accidents caused by the deviation of the hook 5, and can quickly complete the limit adjustment of the hook 5, thereby improving the working efficiency of the crane.

[0034] Reference Figure 1 、 Figure 2 and Figure 4The clamping assembly includes a rotating column 8, the outer wall of the rotating column 8 is slidably connected to the inside of the connecting column 1, and one end of the rotating column 8 is fixedly connected to a knob 2. The knob 2 is wrapped with a non-slip and wear-resistant rubber material, which is convenient for the operator to hold and apply force to rotate. The metal core inside it has sufficient strength to transmit torque. The outer wall of the rotating column 8 is fixedly connected to a turntable 17. The turntable 17 adopts a heavy metal disc structure with good balance and stability. A limiting groove 16 is opened inside the turntable 17. The connecting column 1 is internally slidably connected to a fixed disc 19. The fixed disc 1 9 is fixedly connected to the inside of the card column 4, which is made of cemented carbide material with extremely high hardness and wear resistance. The sliding connection between its outer wall and the inside of the connecting column 1 is designed with strict tolerance matching to ensure that there will be no shaking or jamming during the sliding process. The outer wall of the card column 4 is slidably connected to the inside of the connecting column 1. The card column 4 is fixedly connected to the inside of the sliding column 20, and the outer wall of the sliding column 20 is slidably connected to the inside of the limiting groove 16. The outer wall of the card column 4 is provided with a spring 2 18, one end of the spring 2 18 is fixedly connected to the outer wall of the fixed disk 19, and the other end of the spring 2 18 is fixedly connected to the inner wall of the connecting column 1.

[0035] Specifically, in the connection operation process of the crane hook 5 and related components, precise and orderly steps ensure the stability and reliability of the connection. When starting to connect the hook 5, first, the connecting block 7 must be accurately placed inside the fixed block 3, and then the knob 2 is turned. The rotation of the knob 2 is transmitted to the rotating column 8, making it rotate synchronously. Then the rotating column 8 drives the turntable 17 connected to it to rotate. Since a specific limiting groove 16 is opened inside the turntable 17, the limiting groove 16 interacts with the sliding column 20 during its rotation, driving the sliding column 20 to slide, and the sliding of the sliding column 20 further drives the clamping column 4 to slide along a predetermined trajectory inside the connecting column 1. At the same time, the fixed disc 19 also slides under the drive of the clamping column 4. During this process, the spring 2 18 is After compression, elastic potential energy is stored, and then the connecting column 1 is smoothly slid into the interior of the fixed block 3 and passed through the connecting block 7 to achieve preliminary connection. When the connecting column 1 reaches the appropriate position, the knob 2 is released, and the spring 2 18 uses the rebound characteristics to release energy, driving the clamping column 4 to quickly return to its original position, thereby accurately clamping and fixing the position of the connecting column 1, effectively preventing it from accidentally moving, and ensuring the stability and safety of the hook 5 connection structure during operation. When the connecting column 1 is placed in place, it can quickly extend and contact the surrounding fixed structure or installation surface to form multi-point support, firmly fixing the connecting column 1 in the predetermined position, which can effectively prevent the connecting column 1 from displacement or shaking when the equipment is running or impacted by external force, and provide reliable guarantee for the stable operation of the entire system.

[0036] Working principle: When connecting the hook 5, place the connecting block 7 inside the fixed block 3, then turn the knob 2, and drive the rotating column 8 to rotate through the knob 2, and then drive the turntable 17 to rotate through the rotating column 8, and then drive the limiting groove 16 opened inside the turntable 17 to slide, thereby driving the sliding column 20 to slide, and then drive the clamping column 4 to slide inside the connecting column 1, and drive the fixed disc 19 to slide, and at the same time compress the spring 2 18, and then slide the connecting column 1 into the fixed block 3 and pass through the connecting block 7, connect it, and after it is in the right position , release the knob 2, and the spring 2 18 rebounds to drive the clamping column 4 back to its original position, clamping and fixing the position of the connecting column 1 to prevent it from moving, and then pull the connecting block 7. Because the top of the clamp 13 is an inclined surface, it is pushed to move, and drives the slider 14 to slide inside the slide rail 15, and then drives the fixed column 12 to move, and then drives the limiting disc 11 to slide through the fixed column 12, and compresses the spring 10. After placement is completed, the spring 10 rebounds and drives the clamp 13 to rebound, stably clamping the connecting blocks 7 of different specifications.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hook fixing mechanism for a crane, comprising a fixing block (3), characterized in that: The fixing block (3) is internally slidably connected to a connecting column (1), an outer wall of the connecting column (1) is provided with a stabilizing component, a clamping component is internally provided to the connecting column (1), an outer wall of the connecting column (1) is provided with a connecting block (7), a bottom of the connecting block (7) is fixedly connected to a hook (5), and an outer wall of the hook (5) is slidably connected to an elastic blocking piece (6); The stabilizing component includes a fixed column (12), the outer wall of the fixed column (12) is slidably connected to the inside of the connecting column (1), a placement groove (9) is provided inside the connecting column (1), a slide rail (15) is provided inside the connecting column (1), the outer wall of the fixed column (12) is fixedly connected to a limiting disc (11), a spring (10) is provided inside the connecting column (1), one end of the spring (10) is fixedly connected to the outer wall of the limiting disc (11), and the other end of the spring (10) is fixedly connected to the inner wall of the connecting column (1), the outer wall of the fixed column (12) is fixedly connected to a clamp (13), the bottom of the clamp (13) is fixedly connected to a slider (14), and the outer wall of the slider (14) is slidably connected to the inside of the slide rail (15).

2. The hook fixing mechanism of a crane according to claim 1, characterized in that: The clamping assembly comprises a rotating column (8), the outer wall of which is slidably connected to the interior of the connecting column (1).

3. The hook fixing mechanism of a crane according to claim 2, characterized in that: One end of the rotating column (8) is fixedly connected to a rotating knob (2), and the outer wall of the rotating column (8) is fixedly connected to a rotating disk (17).

4. The hook fixing mechanism of a crane according to claim 3, characterized in that: A limiting groove (16) is provided inside the rotating disk (17), and a fixed disk (19) is slidably connected inside the connecting column (1).

5. The hook fixing mechanism of a crane according to claim 4, characterized in that: A clamping column (4) is fixedly connected to the interior of the fixed disc (19), and the outer wall of the clamping column (4) is slidably connected to the interior of the connecting column (1).

6. The hook fixing mechanism of a crane according to claim 5, characterized in that: A sliding column (20) is fixedly connected inside the clamping column (4), and an outer wall of the sliding column (20) is slidably connected inside the limiting groove (16).

7. The hook fixing mechanism of a crane according to claim 6, characterized in that: The outer wall of the clamping column (4) is provided with a second spring (18), one end of the second spring (18) is fixedly connected to the outer wall of the fixed disc (19), and the other end of the second spring (18) is fixedly connected to the inner wall of the connecting column (1).

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