Anti-falling crane hook device

Abstract

The utility model relates to the technical field of engineering machinery, and discloses an anti-drop crane hook device which comprises a J-shaped hook, an anti-drop component is arranged at an opening of the J-shaped hook, and an anti-skid component is arranged outside the J-shaped hook; the anti-disengaging assembly comprises a fixed pier, a rotating rod is rotationally connected to the interior of the fixed pier, anti-disengaging plates are rotationally connected to the two sides of the outer surface of the rotating rod, the outer surface of the rotating rod is sleeved with a torsion spring, and a torsion arm of the torsion spring abuts against the outer surfaces of the anti-disengaging plates. The two ends of the rotating rod are rotationally connected with two L-shaped rods, and the side surfaces of the L-shaped rods are fixedly connected to the side surfaces of the anti-falling plates. When assembly and disassembly are needed, the L-shaped rod is pressed to drive the anti-falling plate to rotate and open, the telescopic design is combined with the flexible sleeve, the applied force can be adjusted according to the size of the lifting hook and the elastic coefficient of the spring, and the defect that a traditional device needs to be pressed vigorously is overcome.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and in particular to a crane hook device that prevents detachment. Background Technology

[0002] In the field of construction machinery, the crane hook device is a core component of hoisting operations, and its safety and reliability directly affect work efficiency and personnel safety.

[0003] Traditional crane hooks generally suffer from two major technical pain points: First, the closing structure of the anti-derailment device mostly adopts a rigid fixed design, requiring operators to press the steel plate with their thumb to open and close the hook. When the hook size is large, the operating resistance of the anti-derailment plate increases significantly, which not only consumes physical strength but also easily leads to the risk of hand pinching. Second, the hook lacks a three-dimensional anti-slip structure inside, making the wire rope prone to slipping and shaking during hoisting, which leads to accelerated wear of the steel cable and may even cause the hoisted object to fall off. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a crane hook anti-detachment device, aiming to improve upon the existing anti-detachment devices where, when the wire rope comes off, the operator needs to use their thumb to hold down the steel plate and remove the rigging from the hook opening, which can easily trap hands. Furthermore, when the hook is large, the corresponding anti-detachment mechanism is inadequate.

[0005] The device is also quite large. When the operator removes the rigging from the hook, it is difficult to hold the anti-derailment device and there is also the problem of the wire rope swaying inside the hook.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a crane hook device for preventing detachment, comprising a J-shaped hook, wherein an anti-detachment component is provided at the opening of the J-shaped hook, and an anti-slip component is provided on the outside of the J-shaped hook;

[0007] The anti-detachment component includes a fixed block, a rotating rod rotatably connected inside the fixed block, anti-detachment plates rotatably connected to both sides of the outer surface of the rotating rod, a torsion spring sleeved on the outer surface of the rotating rod, the torsion arm of the torsion spring abutting against the outer surface of the anti-detachment plate, and two L-shaped rods rotatably connected to both ends of the rotating rod, the side surfaces of the L-shaped rods being fixedly connected to the side surfaces of the anti-detachment plate.

[0008] As a further description of the above technical solution: the anti-slip component includes multiple rotating shafts, which are rotatably connected inside the J-shaped hook. Both ends of the rotating shafts pass through the J-shaped hook, and anti-slip plates are fixedly connected to both ends of the rotating shafts. A locking block is fixedly connected to the end of the anti-slip plate away from the rotating shaft. The locking block consists of a limiting box, a spring, and a limiting block. The limiting box is fixedly connected to the end of the anti-slip plate away from the rotating shaft. A spring is provided inside the limiting box. One end of the spring is fixedly connected to the inside of the limiting box, and the other end of the spring is fixedly connected to the limiting block. The limiting block is slidably connected to the inside of the limiting box. A locking box is fixedly connected to the side surface of the J-shaped hook, and a locking groove is provided inside the locking box.

[0009] As a further description of the above technical solution: a flexible pad is fixed to the lower end of the outer surface of the anti-slip plate.

[0010] As a further description of the above technical solution: the size and shape of the locking groove are adapted to the locking block.

[0011] As a further description of the above technical solution: the unfixed part of the L-shaped rod is in a telescopic state.

[0012] As a further description of the above technical solution: the J-shaped hook has an internal fixed connection with an anti-slip block.

[0013] As a further description of the above technical solution: a flexible sleeve is fixedly connected to the outer surface of the telescopic section of the L-shaped rod.

[0014] As a further description of the above technical solution: the side surface of the J-shaped hook is slidably connected with a storage column.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the anti-detachment plate remains closed under the action of the torsion spring, effectively preventing the suspended object from accidentally detaching. When loading or unloading is required, pressing the L-shaped rod will rotate and open the anti-detachment plate. Its telescopic design, combined with a flexible sleeve, allows for adjustment of the applied force according to the hook size and spring elasticity coefficient, avoiding the drawbacks of traditional devices that require strong pressing. It is especially suitable for large hook operations. At the same time, the telescopic structure of the L-shaped rod, combined with the flexible sleeve, reduces the intensity of operation and prevents the risk of hand pinching, improving the operator's working experience and ensuring the stability and safety of the lifting process.

[0017] 2. In this utility model, the anti-slip block inside the J-shaped hook and the rotatable anti-slip plate form a three-dimensional protection. The flexible pad at the lower end of the anti-slip plate increases the friction coefficient. With the limiting mechanism of the locking block and the locking groove, the clamping force can be flexibly adjusted according to the diameter of the steel cable. When dealing with thick-diameter steel cables, the storage column can store the excess anti-slip plate to the side of the hook. The quick switching is achieved through the press-type locking mechanism, which maintains the anti-slip function and avoids structural interference, thus improving the problem of steel cable sliding and wear. Attached Figure Description

[0018] Figure 1 This is a front view of a crane hook device for preventing detachment proposed in this utility model;

[0019] Figure 2 This is a rear view of a crane hook device for preventing detachment proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the anti-slip component in a crane hook device for preventing detachment proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the anti-detachment component in a crane hook device for preventing detachment proposed in this utility model.

[0022] Legend:

[0023] 1. J-shaped hook; 2. Anti-detachment assembly; 201. Fixed block; 202. Rotating rod; 203. Anti-detachment plate; 204. Torsion spring; 205. L-shaped rod; 3. Anti-slip assembly; 301. Rotating shaft; 302. Anti-slip plate; 303. Locking block; 304. Locking box; 305. Limiting box; 306. Spring; 307. Limiting block; 308. Locking groove; 4. Flexible pad; 5. Anti-slip block; 6. Flexible sleeve; 7. Storage column. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1-4 One embodiment of this utility model is a crane hook device for preventing detachment, including a J-shaped hook 1, an anti-detachment component 2 provided at the opening of the J-shaped hook 1, and an anti-slip component 3 provided on the outside of the J-shaped hook 1.

[0026] The anti-detachment component 2 includes a fixed block 201, a rotating rod 202 is rotatably connected inside the fixed block 201, and anti-detachment plates 203 are rotatably connected to both sides of the outer surface of the rotating rod 202. A torsion spring 204 is sleeved on the outer surface of the rotating rod 202, and the torsion arm of the torsion spring 204 abuts against the outer surface of the anti-detachment plate 203. Two L-shaped rods 205 are rotatably connected to both ends of the rotating rod 202, and the side surfaces of the L-shaped rods 205 are fixedly connected to the side surfaces of the anti-detachment plate 203.

[0027] The unfixed part of the L-shaped rod 205 is in a telescopic state.

[0028] A flexible sleeve 6 is fixedly connected to the outer surface of the telescopic section of the L-shaped rod 205.

[0029] Specifically, the J-shaped hook 1 serves as the main body of the device, providing installation positions for the other components; the anti-detachment assembly 2 connects the rotating rod 202 to the anti-detachment plate 203 via the fixed block 201, and uses the restoring force of the torsion spring 204 to keep the anti-detachment plate 203 normally closed to prevent the suspended object from falling out; the L-shaped rods 205 at both ends of the rotating rod 202 adopt a telescopic design, and the force required to operate the anti-detachment plate 203 can be changed by adjusting its length. In conjunction with the flexible sleeve 6 on the outer surface of the telescopic section, the operating comfort can be improved. When the suspended object enters the J-shaped hook 1, pressing the L-shaped rod 205 drives the rotating rod 202 to rotate, causing the anti-detachment plate 203 to open. After the suspended object enters, the torsion spring 204 pushes the anti-detachment plate 203 to reset and close, effectively improving the problems of easy hand pinching and difficult operation of traditional hook devices.

[0030] The anti-slip component 3 includes multiple rotating shafts 301, which are rotatably connected to the inside of the J-shaped hook 1. Both ends of the rotating shafts 301 pass through the J-shaped hook 1. Anti-slip plates 302 are fixedly connected to both ends of the rotating shafts 301. A locking block 303 is fixedly connected to the end of the anti-slip plate 302 away from the rotating shafts 301. The locking block 303 is composed of a limiting box 305, a spring 306, and a limiting block 307. The limiting box 305 is fixedly connected to the end of the anti-slip plate 302 away from the rotating shafts 301. A spring 306 is provided inside the limiting box 305. One end of the spring 306 is fixedly connected to the inside of the limiting box 305, and the other end of the spring 306 is fixedly connected to the limiting block 307. The limiting block 307 is slidably connected inside the limiting box 305. A locking box 304 is fixedly connected to the side surface of the J-shaped hook 1. A locking groove 308 is provided inside the locking box 304.

[0031] A flexible pad 4 is fixed to the lower end of the outer surface of the anti-slip plate 302.

[0032] The size and shape of the locking slot 308 are adapted to the locking block 303.

[0033] The J-shaped hook 1 has an internal fixed connection with an anti-slip block 5.

[0034] The side surface of the J-shaped hook 1 is slidably connected to a storage column 7.

[0035] Specifically, the anti-slip component 3 is connected to the anti-slip plate 302 via a rotating shaft 301. The anti-slip plate 302 can rotate around the rotating shaft 301 and is fixed by engaging with the locking groove 308 in the locking box 304 on the side surface of the J-shaped hook 1 via a locking block 303. The flexible pad 4 at the lower end of its outer surface can increase the friction with the steel cable, forming a double anti-slip structure with the anti-slip block 5 fixed inside the J-shaped hook 1. The locking block 303 consists of a limiting box 305, a spring 306, and a limiting block 307. By pressing the limiting block 307, the locking component can be pressed... The spring 306 can release the locked state; when the steel cable is too thick, the two storage posts 7 are used to store the anti-slip plate 302 at the lower end of the J-shaped hook 1 on the side surface of the J-shaped hook 1. By pressing one of the storage posts 7 until it is flush with the side surface of the J-shaped hook 1, and then rotating the anti-slip plate 302 between the two storage posts 7, and then operating the pressed storage post 7 in the opposite direction, the two storage posts 7 clamp the anti-slip plate 302; the anti-slip component 3 effectively improves the situation where the steel cable slides in the hook and causes steel cable wear.

[0036] Working principle: When the load enters the J-shaped hook 1, the rotating rod 202 rotates under the action of external force, causing the anti-detachment plate 203 to rotate around the rotating rod 202, thus opening the opening of the J-shaped hook 1. After the load enters, the torsion spring 204 generates a restoring force to close the anti-detachment plate 203, thereby completing the retrieval of the load. When the load is inside the J-shaped hook 1, the anti-slip block 5 inside initially prevents the steel cable from sliding. Then, the anti-slip plate 302 rotates until the locking block 303 enters the locking groove 308. At this time, the anti-slip plate 302 abuts against the steel cable, further restricting the sliding of the steel cable. After the load is retrieved... To remove the steel cable from the J-shaped hook 1, press the limiting block 307 to compress the spring 306, causing the locking block 303 to disengage from the locking groove 308. Then, reverse the anti-slip plate 302 to release the restriction. Next, unfold the telescopic end of the L-shaped rod 205 and press down the L-shaped rod 205 to rotate the anti-detachment plate 203, exposing the opening of the J-shaped hook 1. Then, pull out the steel cable. During this process, adjust the telescopic length of the L-shaped rod 205 appropriately according to the size of the anti-detachment plate 203 and the elastic coefficient of the torsion spring 204. The longer the L-shaped rod 205, the less force is required to rotate the anti-detachment plate 203.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 crane hook device for preventing detachment, comprising a J-shaped hook (1), characterized in that: The opening of the J-shaped hook (1) is provided with an anti-detachment component (2), and the outside of the J-shaped hook (1) is provided with an anti-slip component (3). The anti-detachment component (2) includes a fixed block (201), a rotating rod (202) is rotatably connected inside the fixed block (201), and anti-detachment plates (203) are rotatably connected to both sides of the outer surface of the rotating rod (202). A torsion spring (204) is sleeved on the outer surface of the rotating rod (202), and the torsion arm of the torsion spring (204) abuts against the outer surface of the anti-detachment plate (203). Two L-shaped rods (205) are rotatably connected to both ends of the rotating rod (202), and the side surface of the L-shaped rod (205) is fixedly connected to the side surface of the anti-detachment plate (203).

2. The anti-fall-off crane hook device according to claim 1, characterized in that: The anti-slip component (3) includes multiple rotating shafts (301), which are rotatably connected inside the J-shaped hook (1). Both ends of the rotating shafts (301) pass through the J-shaped hook (1). Anti-slip plates (302) are fixedly connected to both ends of the rotating shafts (301). A locking block (303) is fixedly connected to the end of the anti-slip plate (302) away from the rotating shafts (301). The locking block (303) is composed of a limiting box (305), a spring (306), and a limiting block (307). The limiting box (305) is fixed. A spring (306) is provided inside the limiting box (305) connected to the end of the anti-slip plate (302) away from the rotating shaft (301). One end of the spring (306) is fixedly connected to the inside of the limiting box (305), and the other end of the spring (306) is fixedly connected to the limiting block (307). The limiting block (307) is slidably connected to the inside of the limiting box (305). A locking box (304) is fixedly connected to the side surface of the J-shaped hook (1). A locking groove (308) is provided inside the locking box (304).

3. The anti-fall-off crane hook device according to claim 2, characterized in that: A flexible pad (4) is fixed to the lower end of the outer surface of the anti-slip plate (302).

4. The anti-detachment crane hook device according to claim 2, characterized in that: The size and shape of the locking groove (308) are adapted to the locking block (303).

5. The anti-fall-off crane hook device according to claim 1, characterized in that: The unfixed part of the L-shaped rod (205) is in a telescopic state.

6. The anti-fall-off crane hook device according to claim 1, characterized in that: The J-shaped hook (1) is internally fixed with an anti-slip block (5).

7. The anti-fall-off crane hook device according to claim 1, characterized in that: A flexible sleeve (6) is fixedly connected to the outer surface of the telescopic section of the L-shaped rod (205).

8. The anti-fall-off crane hook device according to claim 1, characterized in that: The side surface of the J-shaped hook (1) is slidably connected to a storage column (7).

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