Anti-escape rope protection structure of tower crane hook

Abstract

The utility model relates to tower crane hook technical field discloses a tower crane hook anti -drop rope protection structure, including the hook main part, the hook main part outer wall is provided with the safety card, the safety card outer wall is provided with the locking assembly, the safety card outer wall is provided with the quick -release subassembly, the locking assembly includes the block, the block outer wall and the safety card outer wall are engaged, the hook main part inner wall slidingly connected with the sliding rod, the block outer wall fixedly connected in the sliding rod one end, the other end fixedly connected with the pressing block of sliding rod, the sliding rod outer wall fixedly connected with the fixed block, the sliding rod outer wall is equipped with spring no.

Description

Technical Field

[0001] This utility model relates to the field of tower crane hook technology, and in particular to a tower crane hook anti-rope detachment protection structure. Background Technology

[0002] In many fields such as construction and port loading and unloading, tower cranes are key lifting equipment that undertake the important task of lifting and transporting various heavy objects. As the component that directly bears the heavy objects, the safety of the tower crane hook is of paramount importance.

[0003] In existing technologies, the main body of the hook is mostly made of a hook-shaped structure using forging technology. Its cross-sectional shape is designed to be circular, rectangular, or trapezoidal according to the stress characteristics to ensure that the stress can be evenly distributed when bearing the rated load. The opening size and angle of the hook need to be adapted to different specifications of lifting ropes and lifting tools, while taking into account the convenience of loading and unloading the lifting rope. The safety clip restricts the lifting rope inside the hook to prevent the lifting rope from falling out of the hook and causing safety hazards.

[0004] However, traditional anti-derailment structures are unreliable and cannot withstand various interference factors during operation. When the tower crane starts, brakes, or rotates, the hook will vibrate violently. In addition, the collision between the lifting rope and the safety catch can easily cause the safety catch to open unexpectedly, leaving the hook opening in a semi-open state. At this time, if the lifting rope experiences uneven force, angle deviation, or encounters a sudden impact during the lifting process, it will lose effective restraint and is very likely to slip off the hook opening. This problem directly threatens the safety of lifting operations, causing heavy objects to fall, resulting in serious consequences such as equipment damage and personal injury. Therefore, a tower crane hook anti-derailment rope protection structure is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a tower crane hook anti-rope detachment protection structure, which aims to improve the problem in the prior art where the safety card may be accidentally opened due to vibration, collision or improper operation when it is not locked.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A tower crane hook anti-rope detachment protection structure includes a hook body, a safety catch is provided on the outer wall of the hook body, a locking component is provided on the outer wall of the safety catch, and a quick-release component is provided on the outer wall of the safety catch; The locking assembly includes a locking block, the outer wall of which engages with the outer wall of the safety card. A sliding rod is slidably connected to the inner wall of the hook body. The outer wall of the locking block is fixedly connected to one end of the sliding rod, and a pressing block is fixedly connected to the other end of the sliding rod. A fixing block is fixedly connected to the outer wall of the sliding rod, and a spring is sleeved on the outer wall of the sliding rod. One end of the spring is fixedly connected to the inner wall of the hook body, and the other end of the spring is fixedly connected to the outer wall of the fixing block.

[0007] As a further description of the above technical solution: The quick-release assembly includes a connecting block, the outer wall of which is disposed on the outer wall of the insurance card.

[0008] As a further description of the above technical solution: The outer wall of the insurance card is rotatably connected to an installation block, and the outer wall of the connecting block is fixedly connected to the outer wall of the installation block.

[0009] As a further description of the above technical solution: The connecting block has a slot inside, and the outer wall of the connecting block is slidably connected to the inner wall of the hook body.

[0010] As a further description of the above technical solution: The inner wall of the hook body is slidably connected to a fixed column, and the outer wall of the fixed column is slidably connected to the inner wall of the slot.

[0011] As a further description of the above technical solution: A sliding column is fixedly connected to one end of the fixed column, and a pull rod is fixedly connected to one end of the sliding column.

[0012] As a further description of the above technical solution: A second spring is fitted on the outer wall of the sliding column. One end of the second spring is fixedly connected to the inner wall of the hook body, and the other end of the second spring is fixedly connected to the outer wall of the fixed column.

[0013] This utility model has the following beneficial effects: In this invention, the outer wall of the locking block and the outer wall of the safety card engage with each other, and then the sliding rod drives the safety card to move, thereby achieving the effect of locking the safety card. This prevents the safety card from being accidentally opened due to vibration, collision, or improper operation when it is not locked, leaving the hook opening in a semi-open state. At this time, if the lifting rope is subjected to uneven force, angle deviation, or encounters a sudden impact during the lifting process, the lifting rope is very likely to slip off the hook opening, causing the heavy object to fall and resulting in serious consequences such as equipment damage and personal injury. This greatly improves the reliability of the anti-slip rope protection and increases the safety of the lifting process. In this invention, the connecting block slides on the inner wall of the hook body and then moves into the slot through the fixing column, achieving the effect of quick disassembly and replacement of the safety card. This avoids the need to disassemble multiple fixing parts or even require professional tools or multiple people to replace the traditional safety card. If the safety card must be replaced due to wear, deformation or breakage, long-term downtime will directly delay the hoisting task, thereby improving maintenance efficiency and reducing the impact of downtime on the work progress. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of a tower crane hook anti-rope detachment protection structure proposed in this utility model; Figure 2 This is a schematic diagram of the safety card structure of the anti-derailment protection structure for tower crane hooks proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the connecting block of a tower crane hook anti-rope detachment protection structure proposed in this utility model; Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0015] Legend: 1. Hook body; 2. Safety clip; 3. Sliding rod; 4. Pressing block; 5. Fixing block; 6. Spring 1; 7. Locking block; 8. Mounting block; 9. Connecting block; 10. Slot; 11. Fixing column; 12. Sliding column; 13. Spring 2; 14. Pull rod. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figures 1-3 The present invention provides an embodiment of a tower crane hook anti-rope detachment protection structure, including a hook body 1, a safety clip 2 provided on the outer wall of the hook body 1, the safety clip 2 being used to close the hook opening of the hook body 1, preventing the sling from coming off the hook opening, thereby preventing the sling from accidentally falling off, the safety clip 2 being provided with a locking component on the outer wall, and a quick-release component on the outer wall of the safety clip 2. The locking assembly includes a locking block 7, which is used to clamp the safety card 2, restricting its rotation and thus locking it. The outer wall of the locking block 7 engages with the outer wall of the safety card 2. A sliding rod 3 is slidably connected to the inner wall of the hook body 1. The sliding rod 3 moves the locking block 7, engaging or disengaging it from the safety card 2, thus controlling the locking state. The outer wall of the locking block 7 is fixedly connected to one end of the sliding rod 3. The sliding rod 3 slides linearly with the hook body 1, moving the locking block 7 closer to or further away from the safety card 2, thus opening and closing the locking assembly and flexibly controlling the locking state of the safety card 2. A pressing block 4 is fixedly connected to the other end of the sliding rod 3, and a fixing block 5 is fixedly connected to the outer wall of the sliding rod 3. The fixing block 5 transmits the elastic force of the spring 6 to the sliding rod 3, pushing the sliding rod 3 to reset, so as to keep the locking block 7 in the locked state. The outer wall of the sliding rod 3 is fitted with a spring 6. The spring 6 makes the sliding rod 3 drive the locking block 7 to always have a tendency to move towards the safety card 2, so that the locking block 7 remains locked with the safety card 2 when there is no external force, so as to achieve the effect of automatic reset and locking of the locking component. One end of the spring 6 is fixedly connected to the inner wall of the hook body 1, and the other end of the spring 6 is fixedly connected to the outer wall of the fixing block 5.

[0018] Reference Figure 4 and Figure 5The quick-release assembly includes a connecting block 9, which slides with the hook body 1, allowing the connecting block 9 to be inserted into or removed from the hook body 1, thus enabling the installation and removal of the safety clip 2 and achieving the basic installation function of the quick-release assembly. The outer wall of the connecting block 9 is set on the outer wall of the safety clip 2, and the outer wall of the safety clip 2 is rotatably connected to an installation block 8. The installation block 8 is used to enable the rotation function of the safety clip 2, allowing the safety clip 2 to rotate around the installation block 8 to open or close the hook opening, achieving the effect of not affecting the normal loading and unloading of the sling. The outer wall of the connecting block 9 is fixedly connected to the outer wall of the installation block 8. The connecting block 9 has a slot 10 inside, which cooperates with the fixing post 11 to perform a locking movement, thereby fixing the connecting block 9 to the hook body 1 and achieving the effect of installing the safety clip 2 on the hook body 1. The outer wall of the connecting block 9 is slidably connected to the inner wall of the hook body 1, and the inner wall of the hook body 1 is slidably connected to the fixing post 11, which cooperates with the slot 10 to lock the connecting block 9. Inside the hook body 1, the safety clip 2 is securely installed. The outer wall of the fixing column 11 is slidably connected to the inner wall of the slot 10. One end of the fixing column 11 is fixedly connected to the sliding column 12. The sliding column 12 drives the fixing column 11 to move, realizing the engagement or disengagement of the fixing column 11 and the slot 10, thus controlling the fixed state of the quick-release assembly. One end of the sliding column 12 is fixedly connected to the pull rod 14, which is pulled by the operator. The pull rod 14, together with the sliding column 12, drives the fixing column 11 to move, causing the fixing column 11 to disengage from the slot 10, thus quickly releasing the fixation and facilitating the removal of the safety clip 2. The outer wall of the sliding column 12 is fitted with a spring 13. The spring 13, together with the fixing column 11, applies elastic force to it, so that the fixing column 11 remains engaged with the slot 10 when no external force is applied, thus achieving the effect of automatically maintaining the fixed state of the quick-release assembly. One end of the spring 13 is fixedly connected to the inner wall of the hook body 1, and the other end of the spring 13 is fixedly connected to the outer wall of the fixing column 11.

[0019] Working principle: When performing high-altitude operations, first press the pressing block 4. Pressing the pressing block 4 causes the sliding rod 3 to slide on the inner wall of the hook body 1. Then, the sliding rod 3 moves the fixing block 5, which in turn compresses the spring 6. Next, the sliding rod 3 moves the locking block 7. When the locking block 7 moves out of the outer wall of the safety card 2, it is released from the engagement with the safety card 2, allowing the safety card 2 to move freely. Then, rotate the safety card 2 to place the hoisting rope on the inner wall of the hook body 1. After placing the hoisting rope, reposition the safety card 2. After releasing the pressing block 4, the spring 6 will cause the fixing block 5 to reset. Then, the reset of the fixing block 5 will cause the locking block 7 to reset. Once the locking block 7 is reset, it will engage with the safety card 2, thus locking the safety card 2. This prevents the safety card 2 from being accidentally opened due to vibration, collision, or improper operation when it is not locked, leaving the hook opening in a semi-open state. In this case, if the lifting rope is subjected to uneven force, deviates at the angle, or encounters a sudden impact during the lifting process, the lifting rope is very likely to slip off the hook opening, causing the heavy object to fall and resulting in serious consequences such as equipment damage and personal injury.

[0020] When the safety card 2 is damaged and needs to be replaced, first pull the lever 14. Pulling the lever 14 causes the sliding column 12 to slide on the inner wall of the hook body 1. Then, the sliding column 12 causes the fixed column 11 to move. The movement of the fixed column 11 compresses the spring 13. When the fixed column 11 moves out of the slot 10, the fixing of the connecting block 9 is released. Next, pull the mounting block 8. Pulling the mounting block 8 causes the connecting block 9 to slide on the inner wall of the hook body 1. When the connecting block 9 slides out of the hook body 1, the replacement of the safety card 2 is completed. To disassemble the safety card 2, when installing the safety card 2, first insert the connecting block 9 into the inside of the hook body 1. After the connecting block 9 is installed in place, release the pull rod 14. Then, the spring 13 will cause the fixing column 11 to reset. Then, when the fixing column 11 moves into the slot 10, it will fix the connecting block 9, thus completing the installation of the safety card 2. This avoids the need to disassemble multiple fasteners, or even require professional tools or multiple people to cooperate, when replacing the traditional safety card 2. If the safety card 2 must be replaced due to wear, deformation or breakage, long downtime will directly delay the hoisting task.

Claims

1. A tower crane hook anti-derailment protection structure, comprising a hook body (1), characterized in that: The hook body (1) is provided with a safety clip (2) on its outer wall, the safety clip (2) is provided with a locking component on its outer wall, and the safety clip (2) is provided with a quick-release component on its outer wall; The locking assembly includes a locking block (7), the outer wall of the locking block (7) and the outer wall of the safety card (2) are engaged, a sliding rod (3) is slidably connected to the inner wall of the hook body (1), the outer wall of the locking block (7) is fixedly connected to one end of the sliding rod (3), a pressing block (4) is fixedly connected to the other end of the sliding rod (3), a fixing block (5) is fixedly connected to the outer wall of the sliding rod (3), a spring (6) is sleeved on the outer wall of the sliding rod (3), one end of the spring (6) is fixedly connected to the inner wall of the hook body (1), and the other end of the spring (6) is fixedly connected to the outer wall of the fixing block (5).

2. The tower crane hook anti-derailment protection structure according to claim 1, characterized in that: The quick-release assembly includes a connecting block (9), the outer wall of which is disposed on the outer wall of the security card (2).

3. The tower crane hook anti-derailment protection structure according to claim 2, characterized in that: The outer wall of the insurance card (2) is rotatably connected to the mounting block (8), and the outer wall of the connecting block (9) is fixedly connected to the outer wall of the mounting block (8).

4. The tower crane hook anti-derailment protection structure according to claim 3, characterized in that: The connecting block (9) has a slot (10) inside, and the outer wall of the connecting block (9) is slidably connected to the inner wall of the hook body (1).

5. The tower crane hook anti-derailment protection structure according to claim 4, characterized in that: The inner wall of the hook body (1) is slidably connected to a fixed column (11), and the outer wall of the fixed column (11) is slidably connected to the inner wall of the slot (10).

6. The tower crane hook anti-derailment protection structure according to claim 5, characterized in that: One end of the fixed column (11) is fixedly connected to a sliding column (12), and one end of the sliding column (12) is fixedly connected to a pull rod (14).

7. The tower crane hook anti-derailment protection structure according to claim 6, characterized in that: The outer wall of the sliding column (12) is fitted with a spring (13), one end of which is fixedly connected to the inner wall of the hook body (1), and the other end of which is fixedly connected to the outer wall of the fixed column (11).

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