Safety lifting hook

Abstract

The utility model is applicable to the technical field of lifting equipment, and provides a safety lifting hook which comprises a lifting frame, two ends of the lifting frame are symmetrically and fixedly connected with rotating rods, two ends of the two groups of rotating rods are respectively and rotatably connected with a hook, and the periphery of the top end of the lifting frame is respectively and fixedly connected with a lifting hook anti-rotating plate above the hooks; the rotating rods are symmetrically installed on the hanging bracket, so that the hook can rotate on the rotating rods conveniently, the position of the hook can be adjusted freely, the hook can hook objects conveniently, the hook anti-rotating plate is arranged above the hook, the hook anti-rotating effect is achieved on the hook, fixing of the hook is guaranteed, stability of the hook for lifting the objects is kept, and connection between the hook and the hooked objects is prevented from being loosened; and casualties and property loss caused by unhooking of heavy objects are avoided, the safety of the lifting hook is greatly improved, and the stability of the lifting hook is improved.

Description

Technical Field

[0001] This utility model relates to hoisting equipment, and in particular to a safety hook. Background Technology

[0002] The hook device is one of the most widely used lifting devices on cranes. Existing hook devices generally include components such as the hook, hook nut, hook beam, hook pull plate, and pulleys. The principle of crane lifting and lowering is as follows: a wire rope extends from one end of the drum, enters the pulley groove, passes through the pulley, and is fixed to the crane. The pulleys are placed horizontally side by side, and the hook is fixed below the center of the pulley by the hook hanger. When the crane lifts a heavy object, the drum rotates, the wire rope winds around the drum, drives the pulley, and moves the hook upward; when lowering, the drum reverses, allowing the heavy object to move downward.

[0003] When suspending objects, existing hooks are usually movable. If the connection between the hook and the object becomes loose during the lifting process, the object may detach and fall, causing personal injury and property damage. This results in low safety and poor stability. Utility Model Content

[0004] This utility model provides a safety hook, which aims to solve the problem that some hooks are usually movable when suspending objects. If the connection between the hook and the object becomes loose during the lifting process, the object may fall off, causing personal injury and property damage.

[0005] This utility model is implemented as follows: a safety hook includes a hanger, with a rotating rod symmetrically fixedly connected to both ends of the hanger, and a hook rotatably connected to both ends of the two sets of rotating rods. A hook anti-rotation plate is fixedly connected to the top four sides of the hanger above the hook.

[0006] Preferably, a limiting plate is fixedly connected to one side of each hook, and a semi-circular groove is formed at the bottom of the limiting plate, which is adapted to the rotating rod.

[0007] The beneficial effect of adopting the above-mentioned further solution is that it plays a limiting role for the hook, wherein the limiting plate, through the bottom semi-circular groove, facilitates the rotation of the hook on the rotating rod.

[0008] Preferably, a pin seat plate is fixedly connected to the top of the hook anti-rotation plate on the side near the limiting plate. The pin seat plate has a first bolt hole, and the hook anti-rotation plate has corresponding and compatible second bolt holes. Pins are installed in the first bolt hole and the second bolt hole.

[0009] The beneficial effect of adopting the above-mentioned further solution is that it limits the bottom hook of the limiting plate, ensuring the stability of the hook lifting.

[0010] Preferably, the pin is T-shaped.

[0011] The advantages of adopting the above-mentioned further solution are: it facilitates the insertion and removal of the working pin, and makes it easy to quickly fix and release the hook.

[0012] Preferably, each hook is fixedly connected to a handle.

[0013] The beneficial effect of adopting the above-mentioned further solution is that it makes it easier for workers to turn the hook through the handle, thus facilitating the lifting of the hoisting box.

[0014] Preferably, the anti-rotation plate of the hook is provided with a movable slot directly above the handle.

[0015] The advantages of adopting the above-mentioned further solution are: it allows the handle to move freely and prevents the anti-rotation plate on the top hook from restricting the movement of the handle.

[0016] Preferably, a lifting ring is provided at the middle position of the top of the hanger.

[0017] The advantages of adopting the above-mentioned further solution are: it facilitates connection with the external suspension mechanism via the lifting ring, and allows the caisson to be lifted via the external suspension mechanism.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: The safety hook of this utility model has symmetrical rotating rods installed on the frame, which facilitates the rotation of the hook on the rotating rods and allows for free adjustment of the hook position, making it convenient for the hook to hook and lift items. By setting a hook anti-rotation plate above the hook, the hook is prevented from rotating, ensuring the hook is fixed, maintaining the stability of the hook and the lifted item, preventing the connection between the hook and the lifted item from loosening, avoiding the heavy object from falling off the hook, causing personal injury and property damage, and greatly improving the safety and stability of the hook. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the side view structure;

[0021] Figure 3 This is a schematic diagram of the hook-lifting box structure of this utility model.

[0022] In the diagram: 1. Hanger; 2. Rotating rod; 3. Hook; 4. Anti-rotation plate for hook; 5. Limiting plate; 6. Pin seat plate; 7. Pin; 8. Handle; 9. Lifting ring; 10. Lifting box. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] Please see Figure 1-3 This utility model provides a safety hook technical solution: a safety hook includes a frame 1, with a rotating rod 2 symmetrically fixedly connected to both ends of the frame 1, and a hook 3 rotatably connected to both ends of the two sets of rotating rods 2, and a hook anti-rotation plate 4 fixedly connected to the top of the frame 1 around the four sides above the hook 3.

[0025] In this embodiment, by symmetrically installing rotating rods 2 on the hanger 1, the hook 3 can rotate on the rotating rods 2, and the position of the hook 3 can be freely adjusted to facilitate hooking the hook 3 to lift the item. By setting a hook anti-rotation plate 4 above the hook 3, the hook 3 is prevented from rotating, ensuring the hook 3 is fixed, maintaining the stability of the hook 3 lifting the item, preventing the connection between the hook 3 and the lifted item from loosening, avoiding the heavy object from falling off the hook, causing personal injury and property damage, and greatly improving the safety and stability of the hook.

[0026] Furthermore, a limiting plate 5 is fixedly connected to one side of the hook 3, and a semi-circular groove is opened at the bottom of the limiting plate 5, which is compatible with the rotating rod 2.

[0027] In this embodiment, by fixing a limiting plate 5 to the hook 3, the limiting plate 5 cooperates with the hook anti-rotation plate 4 to limit the hook 3. The limiting plate 5 has a bottom semi-circular groove, which facilitates the hook 3 to rotate on the rotating rod 2.

[0028] Typically, a pin seat plate 6 is fixedly connected to the top of the hook anti-rotation plate 4 on the side near the limiting plate 5. The pin seat plate 6 has a first bolt hole, and the hook anti-rotation plate 4 has a corresponding and compatible second bolt hole. A pin 7 is installed in the first bolt hole and the second bolt hole.

[0029] In this embodiment, a pin seat plate 6 is welded and fixed on the side of the hook anti-rotation plate 4 near the limiting plate 5. When the device hooks the lifting box 10, the lifting box 10 is hooked by the hook 3. The position of the limiting plate 5 is close to the pin seat plate 6, and the positions of the first bolt hole and the second bolt hole are corresponding. The pin 7 passes through the two holes to limit the bottom hook 3 of the limiting plate 5, so as to ensure the stability of the hook 3.

[0030] Specifically, the pin 7 is T-shaped.

[0031] In this embodiment, the T-shaped pin 7 is provided to facilitate the insertion and removal of the pin 7 during operation, and to facilitate the quick fixing and release of the hook 3.

[0032] In addition, each hook 3 is fixedly connected to a handle 8.

[0033] In this embodiment, a handle 8 is welded onto the hook 3, which allows the operator to rotate the hook 3 via the handle 8 to facilitate the lifting of the hoisting box 10.

[0034] In addition, the hook anti-rotation plate 4 is provided with a movable slot directly above the handle 8.

[0035] In this embodiment, the hook anti-rotation plate 4 is provided with a movable slot above the handle 8, which facilitates the free movement of the handle 8 and prevents the top hook anti-rotation plate 4 from restricting the movement of the handle 8.

[0036] It should be noted that a lifting ring 9 is provided at the top center of the hanger 1.

[0037] In this embodiment, a lifting ring 9 is welded and fixed at the middle position of the hanger 1, which facilitates connection with an external suspension mechanism and allows the box 10 to be lifted by the external suspension mechanism.

[0038] The working principle and usage process of this utility model are as follows: After the utility model is installed, it is connected to the external lifting device through the hook 9. The pins 7 around the top of the frame 1 are removed. The operator then rotates the handle 8 to hook the hook 3 into the buckle at the top of the hoisting box. The limiting plate 5 and the pin seat plate 6 are then fixed through the pins 7. The hook is then lifted to the designated position by the external lifting device. After the lifting is completed, the pins 7 are removed, and the hook 3 is detached from the hoisting box 10. The above completes the usage process of a safety hook.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A safety hook, characterized in that: The device includes a hanger (1), with a rotating rod (2) symmetrically fixedly connected to both ends of the hanger (1), and a hook (3) rotatably connected to both ends of the two sets of rotating rods (2). A hook anti-rotation plate (4) is fixedly connected to the top of the hanger (1) around the hook (3).

2. A safety hook according to claim 1, characterized in that: One side of each hook (3) is fixedly connected to a limiting plate (5), and a semi-circular groove is opened at the bottom of the limiting plate (5), which is compatible with the rotating rod (2).

3. A safety hook according to claim 2, characterized in that: A pin seat plate (6) is fixedly connected to the top of the hook anti-rotation plate (4) on the side near the limiting plate (5). The pin seat plate (6) has a first bolt hole, and the hook anti-rotation plate (4) has a corresponding and compatible second bolt hole. A pin (7) is provided in the first bolt hole and the second bolt hole.

4. A safety hook according to claim 3, characterized in that: The pin (7) is T-shaped.

5. A safety hook according to claim 1, characterized in that: Each hook (3) is fixedly connected to a handle (8).

6. A safety hook according to claim 5, characterized in that: The hook anti-rotation plate (4) is located directly above the handle (8) and has a movable slot.

7. A safety hook according to claim 1, characterized in that: A lifting ring (9) is provided at the middle position of the top of the hanger (1).

Images