European style hoist trolley hook rope locking device

Abstract

The utility model discloses a kind of European style hoist trolley lifting hook rope locking devices, it is related to crane control technical field, specifically a kind of European style hoist trolley lifting hook rope locking device, including lifting hook, the lifting hook upper end is left with tension spring fixed slot, the intermediate part of lifting hook is fixedly connected with mounting plate, the one end of mounting plate is left with limit plate fixed hole, the limit plate fixed hole is connected with limit plate by bolt thread, the limit slot is left in the lifting hook hook tip, the first safety pin hole is left in the lifting hook hook tip, the first safety pin hole penetrates lifting hook hook tip, the steel wire rope is provided in the bottom of lifting hook inside. By the setting of tension spring fixed slot, make this European style hoist trolley lifting hook rope locking device have the effect that tension spring installation position accurate positioning, avoid long-term use in tension spring shift or offset, by the cooperation setting of mounting plate and limit plate, reach the purpose that the device assembly efficiency is improved, overall service life is lengthened.

Description

Technical Field

[0001] This utility model relates to the field of crane control technology, specifically a European-style crane trolley hook rope locking device. Background Technology

[0002] European-style crane trolleys are widely used in machinery manufacturing, warehousing and logistics due to their compact structure and high efficiency. The hook, as its core load-bearing component, needs to be connected to the heavy object by a wire rope. However, during the lifting process, the wire rope is prone to deviating from the hook pulley groove due to swaying and load changes, which directly affects the safety of the operation. Therefore, limiting and protecting the wire rope has become a critical requirement.

[0003] To prevent the wire rope from slipping or shifting out of the hook groove due to vibration and load fluctuations during lifting, a hook rope locking device for crane trolleys has been developed. This device locks the wire rope through a mechanical limiting structure, ensuring that the wire rope is always within the preset rope groove. It is an important auxiliary component for improving the safety of lifting operations and reducing the risk of equipment failure, and has gradually become an essential component of European-style crane trolley hook systems.

[0004] Existing rope locking devices have complex structures, requiring the assembly and debugging of multiple parts, making installation and maintenance difficult and costly; in addition, some devices are made of materials with insufficient wear resistance, resulting in a short service life. Utility Model Content

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a European-style crane trolley hook rope locking device, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution To achieve the above objectives, this utility model is implemented through the following technical solution: a European-style crane trolley hook rope locking device, including a hook, the upper end of which has a tension spring fixing groove, a mounting plate fixedly connected to the middle part of the hook, a limit plate fixing hole at one end of the mounting plate, the limit plate fixing hole being connected to the limit plate by a bolt thread, a limit groove at the hook tip, a first safety pin hole at the hook tip, the first safety pin hole penetrating the hook tip, and a wire rope provided at the bottom inner side of the hook.

[0007] Optionally, the limiting plate is L-shaped, with a second safety pin hole at one end and a limiting rod fixedly connected to the other end.

[0008] Optionally, a tension spring is sleeved on the outside of the tension spring fixing groove, and the other end of the tension spring is sleeved with the limiting rod. A wear-resistant liner is provided at the connection between the limiting rod and the tension spring. The upper end of the hook is movably connected to one end of the limiting plate through the tension spring.

[0009] Optionally, one end of the second safety pin hole of the limiting plate is engaged inside the limiting groove at the hook tip, and the first safety pin hole and the second safety pin hole are coaxial.

[0010] Optionally, a safety pin is inserted into the first safety pin hole and the second safety pin hole, and the safety pin passes through the first safety pin hole and the second safety pin hole.

[0011] Optionally, the other end of the safety pin is designed with an arc-shaped guide head, and one end of the safety pin is fixedly connected to a ring-shaped pull handle.

[0012] (III) Beneficial Effects This utility model provides a European-style crane trolley hook rope locking device, which has the following beneficial effects: 1. This European-style crane trolley hook rope locking device, through the setting of the tension spring fixing groove, enables the tension spring to be precisely positioned and avoids the tension spring from shifting or deviating during long-term use. Through the cooperation of the mounting plate and the limiting plate, the limiting plate can be quickly fixed to the hook during use, while limiting the maximum rotation angle of the limiting plate. This simplifies the installation process, prevents structural damage caused by excessive rotation of the limiting plate, and achieves the purpose of improving the assembly efficiency of the device and extending the overall service life.

[0013] 2. This European-style crane trolley hook rope locking device, through the setting of the tension spring, enables the limit plate to automatically reset and the locking force to be continuously and stably output. Through the cooperation of the wear-resistant liner and the limit rod, the extreme displacement range of the tension spring can be limited during use, thereby reducing the hard friction wear between the tension spring and the limit rod, avoiding jamming or damage to the locking structure due to excessive offset, thus extending the service life of the limit spring and ensuring the long-term stable operation of the locking mechanism.

[0014] 3. The European-style crane trolley hook rope locking device, through the setting of the annular pull handle, makes it easy for manual gripping and force application, improving operational safety. Through the cooperation of the first safety pin hole, the second safety pin hole, and the safety pin, during use, after the hook has locked the rope, the safety pin can be inserted into the aligned two holes to lock the relative position of the limit plate and the hook. This prevents the limit plate from shifting due to vibration and load impact during lifting operations, achieving the purpose of a double locking device working position and further improving the safety protection level under heavy load conditions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a schematic diagram of the hook of this utility model; Figure 3 This is a schematic diagram of the limiting plate of this utility model; Figure 4 This is a schematic diagram of the safety pin of this utility model.

[0016] In the diagram: 1. Hook; 11. Tension spring fixing groove; 12. Mounting plate; 121. Limiting plate fixing hole; 13. Limiting plate; 131. Second safety pin hole; 132. Limiting rod; 133. Wear-resistant liner; 14. Limiting groove; 15. First safety pin hole; 16. Tension spring; 2. Wire rope; 3. Safety pin; 31. Ring handle. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1 to 4 This utility model provides a technical solution for a European-style crane trolley hook rope locking device, including a hook 1, with a tension spring fixing groove 11 at the upper end of the hook 1, a mounting plate 12 fixedly connected to the middle part of the hook 1, a limit plate fixing hole 121 at one end of the mounting plate 12, a limit plate 13 connected to the limit plate fixing hole 121 by a bolt thread, a limit groove 14 at the hook tip of the hook 1, a first safety pin hole 15 at the hook tip of the hook 1, the first safety pin hole 15 penetrating the hook tip of the hook 1, and a steel wire rope 2 provided on the inner bottom of the hook 1, which is locked by a tension spring. The spring fixing groove 11 enables the European-style crane trolley hook rope locking device to accurately position the tension spring 16 and prevent the tension spring 16 from shifting or deviating during long-term use. Through the cooperation of the mounting plate 12 and the limiting plate 13, the limiting plate 13 can be quickly fixed to the hook 1 during use, while limiting the maximum rotation angle of the limiting plate 13. This simplifies the installation process and prevents structural damage caused by excessive rotation of the limiting plate 13, thereby improving the assembly efficiency of the device and extending its overall service life. The limiting plate 13 is L-shaped, with a second safety pin hole 131 at one end and a limiting rod 132 fixedly connected to the other end. A tension spring 16 is sleeved on the outside of the tension spring fixing groove 11, and the other end of the tension spring 16 is sleeved with the limiting rod 132. A wear-resistant liner 133 is provided at the connection between the limiting rod 132 and the tension spring 16. The upper end of the hook 1 is movably connected to one end of the limiting plate 13 via the tension spring 16. The tension spring 16 enables the European-style lifting device to... The trolley hook rope locking device has the effect of automatic reset of the limit plate 13 and continuous and stable output of locking force. Through the cooperation of wear-resistant liner 133 and limit rod 132, the limit displacement range of tension spring 16 can be limited during use. This reduces the hard friction wear between tension spring 16 and limit rod 132, and avoids jamming or damage to the locking structure due to excessive offset. This achieves the purpose of extending the service life of the limit spring and ensuring the long-term stable operation of the locking mechanism. One end of the second safety pin hole 131 of the limiting plate 13 is engaged with the inside of the limiting groove 14 at the hook tip of the hook 1. The first safety pin hole 15 and the second safety pin hole 131 are coaxial. A safety pin 3 is inserted into the first safety pin hole 15 and the second safety pin hole 131. The safety pin 3 passes through the first safety pin hole 15 and the second safety pin hole 131. The other end of the safety pin 3 is designed with an arc guide head. One end of the safety pin 3 is fixedly connected to a ring pull handle 31. Through the setting of the ring pull handle 31, the hook rope locking device of the European-style crane trolley has... It is designed to facilitate manual gripping and force application, and improve operational safety. Through the coordinated arrangement of the first safety pin hole 15, the second safety pin hole 131 and the safety pin 3, after the hook 1 has locked the rope, the safety pin 3 can be inserted into the two aligned holes to lock the relative position of the limit plate 13 and the hook 1. This prevents the limit plate from shifting due to vibration and load impact during lifting operations, achieving the purpose of a double locking device working position and further improving the safety protection level under heavy load conditions.

[0019] During use, the operator holds one end of the second safety pin hole 131 of the limiting plate 13 and pulls it upward until the gap between the limiting plate 13 and the hook tip of the hook 1 can accommodate the wire rope 2. The wire rope 2 is then placed into the hook 1, the limiting plate 13 is released, and the tension spring 16 pulls the limiting rod 132, causing one end of the second safety pin hole 131 of the limiting plate 13 to be inserted into the limiting groove 14, thus initially locking the device. The safety pin 3 is then inserted into the first safety pin hole 15 and the second safety pin hole 131 until it is fully inserted, thus completing the pre-lifting locking preparation.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A European trolley hook rope locking device comprising a hook (1), characterized in that: The upper end of the hook (1) has a tension spring fixing groove (11), and the middle part of the hook (1) is fixedly connected to the mounting plate (12). One end of the mounting plate (12) has a limit plate fixing hole (121). The limit plate fixing hole (121) is connected to the limit plate (13) by bolt thread. The hook tip of the hook (1) has a limit groove (14). The hook tip of the hook (1) has a first safety pin hole (15). The first safety pin hole (15) passes through the hook tip of the hook (1). The bottom inner side of the hook (1) is provided with a wire rope (2).

2. A European trolley hook rope locking device according to claim 1, characterized in that: The limiting plate (13) is L-shaped, with a second safety pin hole (131) at one end and a limiting rod (132) fixedly connected to the other end of the limiting plate (13).

3. A European trolley hook rope locking device as claimed in claim 1, characterized in that: A tension spring (16) is sleeved on the outside of the tension spring fixing groove (11). The other end of the tension spring (16) is sleeved with the limiting rod (132). A wear-resistant liner (133) is provided at the connection between the limiting rod (132) and the tension spring (16). The upper end of the hook (1) is movably connected to one end of the limiting plate (13) through the tension spring (16).

4. A European trolley hook rope locking device as claimed in claim 1, characterized in that: One end of the second safety pin hole (131) of the limiting plate (13) is engaged inside the limiting groove (14) at the hook tip of the hook (1), and the first safety pin hole (15) and the second safety pin hole (131) are coaxial.

5. A European trolley hook rope locking device as claimed in claim 1, characterized in that: A safety pin (3) is inserted into the first safety pin hole (15) and the second safety pin hole (131), and the safety pin (3) passes through the first safety pin hole (15) and the second safety pin hole (131).

6. A European trolley hook rope locking device according to claim 5, characterized in that: The other end of the safety pin (3) is designed with an arc guide head, and one end of the safety pin (3) is fixedly connected to a ring pull handle (31).

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