A hook for hoisting which can automatically unhook
By designing an automatic unhooking hook structure and utilizing the combination of counterweight and magnet, the problems of time-consuming, labor-intensive, and safety hazards associated with manual unhooking in traditional hoisting operations have been solved, achieving efficient and safe hoisting operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 龙口港集团有限公司
- Filing Date
- 2025-05-15
- Publication Date
- 2026-06-16
AI Technical Summary
In traditional hoisting operations, manual unhooking is time-consuming and labor-intensive, and poses safety hazards, especially when handling large, easily rolling, or slippery goods, which can easily lead to accidents.
Design a lifting hook that can automatically detach, using the cooperation of a counterweight and a magnet to automatically detach the hook under the weight of the cargo, avoiding manual operation. The hook includes a combination structure of a mounting plate, a U-shaped rod, a rotating shaft, and a magnet.
It improves hoisting efficiency, enhances safety, avoids the tedious operation of workers climbing up and down on goods and the potential safety risks, ensures separation of people and goods, and reduces the probability of accidents.
Smart Images
Figure CN224362391U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hoisting hook technology, and in particular to a hoisting hook that can automatically detach. Background Technology
[0002] When transporting or moving heavy objects, such as large packages, timber, billets, steel billets, and profiles, it is often necessary to use a lifting hook to hook onto the sling of the goods for lifting and repositioning. Once the goods are at their destination and lowered, workers remove the hook from the sling and then hook it onto the sling of another item, completing the lifting operation in this manner. This process requires dedicated personnel to wait for the goods to fall before removing the hook. When dealing with large, easily rolling, or slippery goods, the large size of the goods requires workers to climb up and down on them, which is labor-intensive, time-consuming, and exhausting. This method of operation is not only inefficient, but also increases the risk of slipping, falling, and injuries due to the constant climbing required. It is particularly dangerous when handling easily rolling or slippery goods, increasing the likelihood of accidents. Furthermore, there are frequent incidents of hooks swinging and injuring personnel; the lack of separation between personnel and goods is extremely unsafe. Therefore, based on the principle of "no production without safety," resolving the safety issues in hook removal operations is a very urgent task. Therefore, we propose a new type of hook for hoisting that can automatically detach. Utility Model Content
[0003] The main purpose of this utility model is to propose a hook for hoisting that can automatically detach, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a hook for hoisting that can automatically detach, comprising:
[0005] Mounting plate, wherein mounting holes are provided on the mounting plate;
[0006] The U-shaped rod is fixedly connected to the bottom end of the mounting plate, and two through holes are symmetrically opened at the lower end of the U-shaped rod;
[0007] The hook is rotatably connected to the U-shaped rod via a pivot:
[0008] The hook includes a hook part and a counterweight part. The weight of the counterweight part is greater than that of the hook part, and the center of gravity of the counterweight part and the center of gravity of the hook part are not on the same vertical line.
[0009] As a further description of the above technical solution, the hook can be fixedly installed on the lifting device's lifting tool through the mounting holes of the mounting plate using a U-shaped retaining ring.
[0010] As a further description of the above technical solution, the rotating shaft is adapted to the through hole and fixedly connected, and the thickness of the hook is adapted to the groove width of the U-shaped rod.
[0011] As a further description of the above technical solution, a magnet block is fixedly installed at the upper end of the U-shaped rod by a fixing bolt.
[0012] As a further description of the above technical solution, the counterweight is provided with an adsorption part and an insertion part.
[0013] As a further description of the above technical solution, the hook and the counterweight are made of stainless steel in one piece.
[0014] As a further description of the above technical solution, the adsorption part corresponds to the magnet block, and the insertion part is slidably connected to the U-shaped rod.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] 1. Improved operational efficiency: The hook can automatically disengage, eliminating the need for manual removal after the goods have fallen. This reduces the time spent on unhooking during hoisting operations and avoids the tedious task of workers climbing up and down the goods, thus greatly improving the overall efficiency of hoisting operations.
[0017] 2. Enhanced operational safety: When handling large, easily rolling, or slippery goods, traditional manual hook removal methods can easily lead to accidents such as workers slipping, falling, and getting injured, and the swinging hook may also injure personnel. The automatic hook removal design of this product separates personnel from goods, effectively avoiding these safety hazards and ensuring the safety of workers.
[0018] 3. The magnet inside the U-shaped rod works in conjunction with the adsorption part on the hook's counterweight to keep the hook stable in the initial state, preventing it from rotating randomly and colliding during transportation. At the same time, when the hook is not loaded with goods, it can position the hook part at an angle that is conducive to hooking the sling, making operation convenient. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of a lifting hook with automatic release mechanism according to the present invention. Figure 1 ;
[0020] Figure 2 This is a schematic diagram of the overall structure of a lifting hook with automatic release mechanism according to the present invention. Figure 2 ;
[0021] Figure 3 This is a schematic diagram of the overall structure of a lifting hook with automatic release mechanism according to the present invention. Figure 3 ;
[0022] Figure 4 This is an exploded view of the overall structure of a lifting hook with automatic detachment according to the present invention;
[0023] Figure 5 This is a schematic diagram of the hook structure of an automatically detachable hook for hoisting according to the present invention.
[0024] In the diagram: 1. Mounting plate; 2. Mounting hole; 3. U-shaped rod; 4. Hook; 5. Rotating shaft; 6. Magnet block; 41. Hook part; 7. Through hole; 42. Counterweight part; 43. Adsorption part; 44. Insertion part. Detailed Implementation
[0025] To make the technical means, creative features, and objectives of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments.
[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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.
[0028] Please see Figures 1-5 This utility model provides a technical solution: a lifting hook with automatic detachment, comprising:
[0029] Mounting plate 1, with mounting holes 2, through which the hook can be fixedly installed on the lifting device using a U-shaped retaining ring;
[0030] U-shaped rod 3 is fixedly connected to the bottom end of mounting plate 1, and two through holes 7 are symmetrically opened at the lower end of U-shaped rod 3;
[0031] Hook 4 is rotatably connected to U-shaped rod 3 via a pivot 5. The pivot 5 is fitted and fixedly connected to the through hole 7. The thickness of hook 4 is matched with the groove width of U-shaped rod 3. Hook 4 includes a hook part 41 and a counterweight part 42, which are made of stainless steel in one piece. The weight of counterweight part 42 is greater than that of hook part 41. The center of gravity of counterweight part 42 is not on the same vertical line as the center of gravity of hook part 41. The counterweight part 42 is provided with an adsorption part 43 and an insertion part 44.
[0032] A magnet 6 is fixedly installed on the upper part of the U-shaped rod 3 by a fixing bolt. The adsorption part 43 corresponds to the magnet 6, and the insertion part 44 is slidably connected to the U-shaped rod 3.
[0033] To further explain, such as Figure 1 As shown, this is the initial state of the hook. At this time, the insertion part 44 on the hook part 41 is inserted into the groove of the U-shaped rod 3, while the adsorption part 43 is attracted by the magnet 6. At this time, the hook 4 has a tendency to rotate under the gravity of the counterweight part 42, but it is limited by the adsorption force of the magnet 6 and remains stable, so that the angle of the hook part 41 is suitable for hooking the sling, and the hook 4 will not rotate or collide randomly during production and transportation.
[0034] To further explain, such as Figure 2 As shown, this is the state when the hook is lifting the goods. After the sling of the goods is attached to the hook part 41, the pulling force generated by the weight of the goods is greater than the attraction force of the magnet 6 on the adsorption part 43. Under the influence of the weight of the goods, the adsorption part 43 on the counterweight part 42 of the hook 4 separates from the magnet 6, and the hook 4 rotates around the pivot 5 until the center of gravity of the goods and the axis of the pivot 5 are on the same vertical line. At this time, the hook 4 is in a balanced state and can stably lift the goods.
[0035] To further explain, such as Figure 3 As shown, this is the state after the hook has automatically disengaged from the sling on the cargo. After the cargo is hoisted to the designated location, the cargo is supported by the ground or platform, and the hook 4 is no longer affected by the weight of the cargo itself. At this time, since the weight of the counterweight part 42 of the hook is greater than the weight of the hook part 41, under the influence of the weight of the counterweight part 42, the end of the hook 4 where the counterweight part 42 is located will rotate downward around the pivot 5, while the end where the hook part 41 is located will rotate upward around the pivot 5. This causes the opening of the hook part 41 to face downward, allowing the sling on the cargo to slide off the hook part 41 due to its own weight, thus achieving automatic disengagement.
[0036] It should be noted that this utility model is an automatically detachable hook for hoisting. A U-shaped retaining ring passes through the mounting hole 2 on the mounting plate 1 to securely install the hook onto the hoisting device, ensuring a firm installation. Then, the sling of the cargo is hooked onto the hook portion 41 of the hook 4. Under the weight of the cargo, the suction part 43 of the counterweight part 42 of the hook 4 separates from the magnet 6 and rotates around the pivot 5, adjusting until the center of gravity of the cargo and the axis of the pivot 5 are aligned vertically, ready for hoisting. The hoisting device is then used to lift the cargo to the designated location. After the cargo is placed on the ground or platform, the hook 4, no longer under the weight of the cargo, causes the counterweight part 42 to rotate downwards around the pivot 5, and the hook portion 41 to rotate upwards with its opening facing downwards. The cargo sling automatically slides off the hook portion 41, completing the detachment. Compared with existing automatically detachable hooks for hoisting, this utility model, through its design, offers advantages such as improved work efficiency, enhanced safety, and structural stability and reliability, effectively solving the problems of low efficiency and high risk associated with traditional manual detachment.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A lifting hook with automatic release mechanism, characterized in that, include: Mounting plate (1), wherein mounting holes (2) are provided on the mounting plate (1); U-shaped rod (3), the U-shaped rod (3) is fixedly connected to the bottom end of the mounting plate (1), and two through holes (7) are symmetrically opened at the lower end of the U-shaped rod (3). Hook (4), which is rotatably connected to U-shaped rod (3) via a pivot (5): The hook (4) includes a hook part (41) and a counterweight part (42). The weight of the counterweight part (42) is greater than that of the hook part (41). The center of gravity of the counterweight part (42) and the center of gravity of the hook part (41) are not on the same vertical line. The counterweight part (42) is provided with an adsorption part (43) and an insertion part (44). The insertion part (44) is slidably connected to the U-shaped rod (3). A magnet (6) is fixedly installed inside the upper end of a U-shaped rod (3) by a fixing bolt, and the adsorption part (43) corresponds to the magnet (6); When no cargo is attached, the adsorption part (43) can be attracted by the magnet (6), and the insertion part (44) is inserted into the groove of the U-shaped rod (3), so that the hook (4) remains stable and the hook part (41) is at an angle suitable for hooking the sling.
2. The lifting hook with automatic release capability according to claim 1, characterized in that, The hook can be fixedly installed on the lifting device's lifting device using a U-shaped retainer through the mounting hole (2) of the mounting plate (1).
3. The lifting hook with automatic release capability according to claim 1, characterized in that, The rotating shaft (5) is adapted to the through hole (7) and fixedly connected, and the thickness of the hook (4) is adapted to the groove width of the U-shaped rod (3).
4. The lifting hook with automatic release capability according to claim 1, characterized in that, The hook part (41) and the counterweight part (42) are made of stainless steel in one piece.