Anti-falling device for hooks
By installing an anti-detachment device on the side of the hook and using a handle and spring system to control the opening and closing of the enclosure, the problems of difficult operation and safety hazards of traditional hooks are solved, and safe and efficient wire loading and unloading are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU NEW BEST WIRE TECH CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-19
AI Technical Summary
When traditional hooks are used to lift wire coils, the strong elasticity of the enclosed plate makes it difficult for operators to load and unload the wires alone, posing a safety hazard and increasing the risk of injury from being pinched.
Design an anti-detachment device for a hook, with the switch of the anti-detachment device located on the side of the hook. The opening and closing of the closing plate is controlled by a handle and a spring system, avoiding direct manual contact with the closing plate. The automatic opening and closing of the closing plate is achieved by the cooperation of the switch spring and the closing spring.
It improves operational safety and efficiency, reduces the risk of damage caused by the rebound of the sealing plate, and simplifies the operation process.
Smart Images
Figure CN224377465U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an anti-detachment device for a hook. Background Technology
[0002] Steel wire rods are typically coiled for easy lifting and handling during production. However, because the coiled wire rods are quite thick in the radial direction, a locking device is needed to seal the gap between the wire rod and the hook when lifting the coil. This prevents the wire rod from detaching from the hook due to inertia during transport, as a detached coil can pose a safety hazard and disrupt production.
[0003] Traditionally, a sealing plate is added to the hook's gripper opening, using a spring to hold the plate in place and seal it. To ensure safety and stability during transport, the sealing plate must remain stationary. This requires manual operation during lifting, where the cable reel must be pressed into the sealing plate by the operator, overcoming the spring force. Since this force is typically quite strong, it's difficult for one person to complete this task. Furthermore, the sealing plate may spring back at the moment the cable is pressed in, potentially trapping the operator and causing an accident. Therefore, a safe and reliable anti-derailment device is crucial. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide an anti-detachment device for a hook, which aims to set the switch of the anti-detachment device on the side of the hook, so that there is no need for manual contact with the sealing plate, reducing the damage caused by the rebound of the sealing plate, improving safety, facilitating operation, and improving efficiency.
[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: an anti-detachment device for a hook, comprising an anti-detachment base, a handle, a switch spring, a closing spring, and a closing plate; the anti-detachment base is located on one side of the hook and is fixedly connected to the hook; the handle passes through the anti-detachment base and through the hook; the switch spring is located on the handle and connected to it; the closing spring is located on one side of the handle, with one end connected to the handle and the other end connected to the closing plate; the closing plate is located on the hook and closes the hook's web opening.
[0006] The grip is L-shaped and consists of a vertical section and a horizontal section. The horizontal section runs through the anti-slip base. The vertical section intersects the horizontal section perpendicularly to provide a grip position. The horizontal section connects the switch spring and the locking spring.
[0007] Furthermore, the switch spring is a torque spring, distributed around the horizontal section of the grip. When the vertical section of the grip rotates, the switch spring rotates with the horizontal section, generating elastic force. When the thrust on the grip disappears, the elastic force drives the horizontal section to resume rotation.
[0008] Furthermore, a control rope is provided on the closed spring, one end of which is connected to the closed spring, and the other end is wrapped around the horizontal section of the handle, tightening or loosening as the handle rotates.
[0009] Furthermore, the control rope is a cord structure.
[0010] Furthermore, the control rope is a soft metal structure.
[0011] Furthermore, the closing spring is a tension spring, which tightens the closing plate through elastic force.
[0012] Furthermore, the enclosing plate is inclinedly arranged at the web of the hook, and one end is fixedly connected to the enclosing spring.
[0013] Furthermore, the horizontal section of the handle is provided with rotating bushings at both ends, and the rotating bushings are fixed on the two sides of the hook to support the horizontal section of the handle.
[0014] Compared with existing technologies, the anti-derailment device for a hook provided by this utility model connects a control rope to a closing spring. When needed, rotating the vertical section of the handle rotates the horizontal section, thereby loosening the control rope. The closing plate moves downward due to gravity, creating space in the hook's opening for loading the coil. After loading, releasing the handle restores the horizontal section to its original position via a switching spring, tightening the control rope. This causes the closing spring to tighten the closing plate, sealing the hook's opening. The device is easy to operate, and personnel remain on the side of the hook, avoiding direct contact with the hook's opening, reducing the risk of injury and improving convenience and safety. Attached Figure Description
[0015] Figure 1 This is a front sectional view of the present invention.
[0016] The components include: 1. Anti-detachment base, 2. Handle, 3. Switch spring, 4. Sealing spring, 5. Sealing plate, 6. Vertical section, 7. Horizontal section, 8. Control rope, and 9. Rotating bushing. Detailed Implementation
[0017] As shown in the figure, an anti-detachment device for a lifting hook includes an anti-detachment base 1, a handle 2, a switching spring 3, a closing spring 4, and a closing plate 5. The anti-detachment base 1 is located on one side of the lifting hook and is fixedly connected to the lifting hook. The handle 2 passes through the anti-detachment base 1 and through the lifting hook. The switching spring 3 is located on the handle 2 and is connected to the handle 2. The closing spring 4 is located on one side of the handle 2, with one end connected to the handle 2 and the other end connected to the closing plate 5. The closing plate 5 is located on the lifting hook and closes the opening between the thumb and forefinger of the lifting hook.
[0018] The grip 2 is L-shaped and is divided into a vertical section 6 and a horizontal section 7. The horizontal section 7 passes through the anti-slip base 1. The vertical section 6 and the horizontal section 7 intersect perpendicularly to provide a hand grip position. The horizontal section 7 connects the switch spring 3 and the closing spring 4.
[0019] Furthermore, the switch spring 3 is a torque spring, distributed around the horizontal section 7 of the grip 2. When the vertical section 6 of the grip 2 rotates, the switch spring 3 rotates with the horizontal section 7, forming an elastic force. When the thrust on the grip 2 disappears, the elastic force drives the horizontal section 7 to resume rotation.
[0020] Furthermore, a control rope 8 is provided on the closed spring 4. One end of the control rope 8 is connected to the closed spring 4, and the other end is wrapped around the horizontal section 7 of the handle 2, which tightens or loosens as the handle 2 rotates.
[0021] Furthermore, the control rope 8 is a cord structure.
[0022] Furthermore, the control rope 8 is a soft metal structure.
[0023] Furthermore, the closing spring 4 is a tension spring, which tightens the closing plate 5 through elastic force.
[0024] Furthermore, the closing plate 5 is arranged obliquely at the opening of the hook, and one end is fixedly connected to the closing spring 4.
[0025] Furthermore, the horizontal section 7 of the handle 2 is provided with rotating bushings 9 at both ends. The rotating bushings 9 are fixed on the two sides of the hook and support the horizontal section 7 of the handle 2.
[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and not to limit the technical solutions. Those skilled in the art should understand that any modifications or equivalent substitutions to the technical solutions of this utility model that do not depart from the spirit and scope of this technical solution should be covered within the scope of the claims of this utility model.
Claims
1. A hook anti-derailment device, characterized in that, The device includes an anti-detachment base, a handle, a switch spring, a locking spring, and a sealing plate. The anti-detachment base is located on one side of the hook and is fixedly connected to the hook. The handle passes through the anti-detachment base and through the hook. The switch spring is located on the handle and connected to it. The locking spring is located on one side of the handle, with one end connected to the handle and the other end connected to the sealing plate. The sealing plate is located on the hook and closes the opening between the thumb and forefinger of the hook. The grip is L-shaped and consists of a vertical section and a horizontal section. The horizontal section runs through the anti-slip base. The vertical section intersects the horizontal section perpendicularly to provide a grip position. The horizontal section connects the switch spring and the locking spring.
2. The anti-derailment device for a hook according to claim 1, characterized in that, The switch spring is a torque spring, distributed around the horizontal section of the grip. When the vertical section of the grip rotates, the switch spring rotates with the horizontal section, generating elastic force. When the thrust on the grip disappears, the elastic force drives the horizontal section to resume rotation.
3. The anti-derailment device for a hook according to claim 1, characterized in that, A control rope is provided on the closed spring. One end of the control rope is connected to the closed spring, and the other end is wrapped around the horizontal section of the handle, which tightens or loosens as the handle rotates.
4. The anti-derailment device for a hook according to claim 3, characterized in that, The control rope is a cord structure.
5. The anti-derailment device for a hook according to claim 3, characterized in that, The control rope is a soft metal structure.
6. The anti-derailment device for a hook according to claim 1, characterized in that, The closing spring is a tension spring, which tightens the closing plate through its elastic force.
7. The anti-derailment device for a hook according to claim 1, characterized in that, The enclosing plate is inclinedly arranged at the opening of the hook, and one end is fixedly connected to the enclosing spring.
8. The anti-derailment device for a hook according to claim 1, characterized in that, The horizontal section of the handle is provided with rotating bushings at both ends, and the rotating bushings are fixed on the two sides of the hook to support the horizontal section of the handle.