Anti-unhooking device of crown block

Abstract

The utility model discloses an anti-unhooking device for a crown block, which belongs to the technical field of anti-unhooking devices and comprises a connecting disc, a mounting ring mounted on the connecting disc, a hook mounted at the bottom end of the mounting ring, and a limiting component mounted on the hook. The position of the rope can be fixed after adjustment is completed, accidental rotation of the rope is effectively prevented, the protection reliability is improved, the overall structure is simple and compact, installation and use are convenient, the device can adapt to various operation scenes, the unhooking risk in the hoisting process is remarkably reduced, and the safety of hoisting is improved. And the operation safety and stability of the crown block are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-disengagement devices, and more specifically, to an anti-disengagement device for overhead cranes. Background Technology

[0002] Overhead cranes are widely used in industrial production, construction engineering, and logistics transportation for lifting heavy objects. However, hooks are an essential component in the lifting process, serving as ropes or lifting devices to secure goods. Traditional hook structures are mostly open designs, which, while simple to operate, lack reliable safety measures. This can lead to hook detachment when goods sway or ropes slip, potentially causing accidents such as goods falling.

[0003] While some existing hook structures incorporate limiting devices to reduce the risk of disengagement, several problems remain. Firstly, the limiting devices are limited in function and cannot be flexibly adjusted for different rope specifications. Secondly, traditional designs suffer from poor cargo securing when cargo sways significantly, sometimes even leading to rope slippage. Furthermore, these devices are complex in structure, cumbersome to install and debug, and unsuitable for various operational scenarios, impacting actual efficiency and safety.

[0004] Therefore, a crane anti-derailment device is proposed to address the above problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide an anti-disengagement device for overhead cranes. It can fix the position after adjustment, effectively prevent accidental rotation, improve the reliability of protection, and has a simple and compact overall structure. It is easy to install and use, can adapt to various working scenarios, significantly reduce the risk of disengagement during hoisting, and improve the safety and stability of overhead crane operation.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A crane anti-derailment device includes a connecting plate, an installation ring mounted on the connecting plate, a hook mounted at the bottom end of the installation ring, and a limit component mounted on the hook for limiting the rope.

[0010] Furthermore, the hook is provided with multiple evenly distributed abutment grooves, and the abutment grooves are arc-shaped.

[0011] Furthermore, the limiting component includes an anti-detachment block rotatably connected to the hook, with a bolt installed at one end of the anti-detachment block, the bolt passing through the anti-detachment block and threadedly connected to the hook.

[0012] Furthermore, a fixing block is fixedly connected to the bottom end of the anti-detachment block, a damper is fixedly connected to one end of the fixing block, and an abutment block is fixedly connected to one end of the damper.

[0013] Furthermore, the abutting block and the anti-detachment block are slidably connected, and the abutting block matches the abutting groove. An anti-slip pad is installed around the abutting block.

[0014] Furthermore, the length of the anti-detachment block is much greater than the width of the hook.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] This solution achieves efficient protection of the hook through the synergistic action of the anti-detachment block, the abutment block, and the damper, overcoming the problem of easy detachment of traditional hooks. During use, the anti-detachment block rotates to form a sealed space, restricting the range of motion of the rope and avoiding the risk of detachment due to cargo swaying. The abutment block slides under the action of the damper and matches the abutment groove on the hook. It can not only be adjusted according to the rope width, but also further enhances the stability of the rope through the surrounding anti-slip pad. The anti-detachment block, together with the locking function of the bolt, can fix its position after adjustment, effectively preventing accidental rotation and improving the reliability of protection. The overall structure is simple and compact, easy to install and use, and can adapt to various operating scenarios, significantly reducing the risk of detachment during hoisting and improving the safety and stability of overhead crane operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a side view of the present invention.

[0020] Figure 3 This is a schematic diagram of the limiting component structure of this utility model.

[0021] Explanation of the labels in the diagram:

[0022] 1. Connecting plate; 2. Limiting component; 11. Mounting ring; 12. Hook; 13. Abutment groove; 14. Bolt; 21. Anti-detachment block; 22. Fixing block; 23. Damper; 24. Abutment block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example:

[0027] Please see Figure 1-3 A crane anti-derailment device includes a connecting plate 1, an installation ring 11 installed on the connecting plate 1, a hook 12 installed at the bottom of the installation ring 11, and a limit component 2 installed on the hook 12. The limit component 2 is used to limit the rope.

[0028] The anti-detachment block 21, the abutment block 24, and the damper 23 work together to achieve efficient protection of the hook 12, overcoming the problem of easy detachment of traditional hooks. During use, the anti-detachment block 21 rotates to form a sealed space, restricting the range of motion of the rope and avoiding the risk of detachment due to cargo swaying. The abutment block 24 slides under the action of the damper 23 and matches the abutment groove 13 on the hook 12. It can not only be adjusted according to the rope width, but also further enhances the stability of the rope through the surrounding anti-slip pad. The anti-detachment block 21, together with the locking function of the bolt 14, can fix its position after adjustment, effectively preventing accidental rotation and improving the reliability of protection. The overall structure is simple and compact, easy to install and use, and can adapt to various operating scenarios, significantly reducing the risk of detachment during hoisting and improving the safety and stability of overhead crane operation.

[0029] The hook 12 has multiple evenly distributed abutment grooves 13, and the shape of the abutment grooves 13 is arc-shaped.

[0030] The limiting component 2 includes an anti-detachment block 21 rotatably connected to the hook 12. One end of the anti-detachment block 21 is equipped with a bolt 14, which passes through the anti-detachment block 21 and is threadedly connected to the hook 12.

[0031] A fixing block 22 is fixedly connected to the bottom of the anti-detachment block 21. A damper 23 is fixedly connected to one end of the fixing block 22. An abutment block 24 is fixedly connected to one end of the damper 23. The abutment block 24 is slidably connected to the anti-detachment block 21, and the abutment block 24 matches the abutment groove 13. An anti-slip pad is installed around the abutment block 24.

[0032] The length of the anti-detachment block 21 is much greater than the width of the hook 12.

[0033] This device, through its structural design, achieves rope limiting and anti-derailment functions, significantly improving the safety and stability of hoisting operations. The device includes a connecting plate 1, a mounting ring 11, and a hook 12. The hook 12 is used to hook the rope of the cargo, and a limiting component 2 is installed on the hook 12. The limiting component 2, through the cooperation of multiple multi-functional parts, can limit the range of motion of the rope and effectively prevent it from detaching.

[0034] The hook 12 has multiple evenly distributed abutment grooves 13, which are arc-shaped and match the abutment blocks 24 in the limiting assembly 2. The limiting assembly 2 includes an anti-detachment block 21 rotatably connected to the hook 12. A bolt 14 is installed at one end of the anti-detachment block 21, which passes through the anti-detachment block 21 and is threadedly connected to the hook 12. This bolt is used to fix and adjust the rotation angle of the anti-detachment block 21, thereby further locking the rope and preventing it from coming off the hook.

[0035] A fixing block 22 is fixedly connected to the bottom of the anti-slip block 21. A damper 23 is fixedly connected to one end of the fixing block 22, and an abutment block 24 is connected to the other end of the damper 23. The abutment block 24 is slidably connected to the anti-slip block 21, can move along the fixing block 22, and matches the abutment groove 13 on the hook 12. Through the action of the damper 23, the abutment block 24 can provide cushioning when the goods sway, absorb part of the impact force, and further enhance the stability of the rope. In addition, an anti-slip pad is installed around the abutment block 24 to increase friction, prevent the rope from slipping during operation, and ensure the stability of the goods.

[0036] The limiting component 2 can be adjusted according to the different widths of the ropes. Its purpose is to better accommodate ropes of different specifications, ensuring the rope is securely fixed on the hook 12. This limits the rope's movement during operation, further reducing the risk of the goods becoming detached or slipping due to swaying, and ensuring the safety and stability of the lifting operation. This makes the device more versatile, meeting the needs of different scenarios, and by limiting the swaying of the goods, it improves the operational precision and efficiency during lifting.

[0037] The length of the anti-slip block 21 is much greater than the width of the hook 12. This design ensures that the anti-slip block 21 can completely cover the opening of the hook 12 after rotation, forming a sealed space together with the hook 12, thereby effectively preventing the rope from slipping off the hook 12. After the device is adjusted into place, tighten the bolt 14 with a tool to press the bolt 14 against the anti-slip block 21, further restricting the rotation of the anti-slip block 21 and ensuring the locking effect of the device.

[0038] Working principle:

[0039] The limiting component 2 enables the rope to be limited and prevented from detaching. In use, the hook 12 is used to hook the rope of the goods, and the anti-detachment block 21 is rotated to bring it closer to the rope. At the same time, the fixing block 22 at the bottom of the anti-detachment block 21 drives the damper 23 to work, pushing the abutment block 24 to slide and lock into the abutment groove 13 on the hook 12, thereby reducing the rope's movement space. The abutment block 24 is surrounded by an anti-slip pad, which can enhance the friction of the rope and prevent slippage. After the initial adjustment is completed, the bolt 14 is rotated to press the anti-detachment block 21, further restricting the rotation of the anti-detachment block 21, so that the hook 12 and the anti-detachment block 21 form a sealed space, thereby effectively preventing the rope from detaching from the hook 12.

[0040] Furthermore, the anti-detachment block 21 of this device is much longer than the width of the hook 12, covering the entire hook area and thus providing a greater protection range. The sliding connection design between the anti-detachment block 21 and the hook 12 allows it to be flexibly adjusted according to ropes of different widths, adapting to various operational needs. The overall design is simple and efficient, enabling rapid rope limiting and hook detachment protection, significantly improving the safety of overhead crane hoisting operations.

[0041] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A crane anti-derailment device, comprising a connecting plate (1), characterized in that: An installation ring (11) is installed on the connecting plate (1), and a hook (12) is installed at the bottom end of the installation ring (11). A limit component (2) is installed on the hook (12), and the limit component (2) is used to limit the rope.

2. The anti-derailment device for overhead cranes according to claim 1, characterized in that: The hook (12) has a plurality of evenly distributed abutment grooves (13), and the abutment grooves (13) are arc-shaped.

3. The anti-derailment device for overhead cranes according to claim 1, characterized in that: The limiting component (2) includes an anti-detachment block (21) rotatably connected to the hook (12). One end of the anti-detachment block (21) is fitted with a bolt (14), which passes through the anti-detachment block (21) and is threadedly connected to the hook (12).

4. The anti-derailment device for overhead cranes according to claim 3, characterized in that: The bottom end of the anti-detachment block (21) is fixedly connected to a fixing block (22), one end of the fixing block (22) is fixedly connected to a damper (23), and one end of the damper (23) is fixedly connected to an abutment block (24).

5. The anti-derailment device for overhead cranes according to claim 4, characterized in that: The abutting block (24) is slidably connected to the anti-detachment block (21), and the abutting block (24) matches the abutting groove (13). The abutting block (24) is surrounded by an anti-slip pad.

6. The anti-derailment device for overhead cranes according to claim 3, characterized in that: The length of the anti-detachment block (21) is much greater than the width of the hook (12).

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