Anti-unhooking locking assembly for a crane hook

Abstract

The utility model discloses a kind of anti-unhooking locking assemblies of crane hook, including hook body, locking mechanism is equipped on the hook body, and locking mechanism includes the fixed seat of fixedly arranged in the end of hook body, connecting piece is movably equipped on the fixed seat by pin shaft, and connecting piece top is equipped with fixed column, locking seat is equipped on the fixed column, and fixed column is screwed with fixed nut by passing through locking seat. The anti-unhooking locking assembly of crane hook, rely on mechanical clamping and screwing, cooperation between components is stable, locking effect is not susceptible to external factors interference, can adapt to the suspension demand of different weight, different type rope, the scope of application is wider;Rope can be locked in the inside of hook body, and it will not happen to separate;Ensure safety when hanging heavy object;The spacing seat structure of isosceles trapezoid, compared with other shapes more can adhere to rope surface, both increase the contact area with rope, reduce local pressure.

Description

Technical Field

[0001] This utility model relates to the field of lifting hooks, specifically to an anti-disengagement locking component for a crane hook. Background Technology

[0002] A crane hook is a hook-shaped metal component typically installed on the lifting mechanism of a crane (such as the end of a wire rope or chain). Its core function is to use its hook-shaped structure to hold the heavy object (such as a lifting ring or wire rope sling), transferring the crane's traction force to the heavy object to achieve lifting and moving. Hooks are usually made of high-strength alloy steel to ensure that they will not undergo plastic deformation or breakage when subjected to huge loads. Depending on the application, common types include single hooks, double hooks, and ram's horn hooks. After the hoisting mechanism is started, the wire rope or chain pulls the hook upward; the hook converts the traction force into a pulling force on the heavy object. At this time, the hook body, hook neck and other key parts of the hook bear the full load and lift the heavy object smoothly. When the direction of force on the hook is not on the same straight line as the center of gravity of the load, a horizontal component force is generated, causing the lifting device to slide inside the hook cavity and eventually detach. After detachment, the load falls from a height, which can directly cause serious accidents such as being crushed or killed if there are people below. This is especially true in densely populated work environments such as construction sites and factories, where the range of casualties may be expanded. Utility Model Content

[0003] The purpose of this utility model is to provide an anti-disengagement locking component for crane hooks to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, an anti-disengagement locking assembly for a crane hook is provided, comprising a hook body, a locking mechanism on the hook body, and a fixing seat fixedly mounted on the end of the hook body. A connecting piece is movably mounted on the fixing seat via a pin, and a fixing post is provided on the top of the connecting piece. A locking seat is provided on the fixing post, and a fixing nut is screwed through the locking seat onto the fixing post.

[0005] Furthermore, the hook body also includes multiple sets of limiting seats, which are equidistantly distributed along the inner wall of the hook body.

[0006] Furthermore, a limiting space is formed between two adjacent sets of limiting seats, and the limiting seats are in the shape of an isosceles trapezoid.

[0007] Furthermore, an extension bracket is fixedly provided at the end of the hook body, and the extension bracket is inclined at 45 degrees.

[0008] Furthermore, the locking mechanism also includes a connecting seat fixed to the hook body, and a locking seat is provided at the end of the connecting seat. Both the locking seat and the fixing seat are U-shaped.

[0009] Furthermore, the bottom of the fixed column is provided with a telescopic column, and a pressure plate is fixed at the bottom of the telescopic column. A bottom column is provided below the fixed column, and a receiving groove is opened inside the bottom column. A spring is installed inside the receiving groove.

[0010] Furthermore, a spring is sleeved on the telescopic column, and the pressure plate is circular and slidably disposed inside the receiving groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The multiple equidistant limiting seats in this solution can separate and position the suspended ropes through the limiting space, preventing multiple ropes from getting tangled or sliding during hoisting, ensuring that each rope is subjected to uniform force, and preventing the hook body from becoming unbalanced due to rope deviation; the isosceles trapezoidal limiting seat structure fits the rope surface better than other shapes, which not only increases the contact area with the rope and reduces local pressure, but also guides the rope to accurately enter the limiting space through the inclined surface of the trapezoid, improving the convenience and stability of rope placement; 2. This solution, through the physical locking of the fixed column and the tightening effect of the fixed nut, can stably confine the rope inside the hook body. This double protection effectively prevents the rope from slipping off the hook during hoisting due to swaying or bumps, significantly improving operational safety. Furthermore, this structure relies on mechanical snap-fit ​​and screw-fit fixing, ensuring stable cooperation between components and minimal interference from external factors. It can adapt to the suspension needs of ropes of different weights and types, making it widely applicable. It locks the rope inside the hook body, preventing slippage and guaranteeing safety when suspending heavy objects. Attached Figure Description

[0012] Figure 1 This is a front view schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structural fixing column and its installation structure of this utility model; Figure 3 This is a bottom view of the structure of this utility model; Figure 4 This is a top view of the structure of this utility model; Figure 5 This is a rear view of the structure of this utility model.

[0013] The following are the labeling elements in the diagram: 100, hook body; 11, limit seat; 12, limit space; 13, extension seat; 200, locking mechanism; 21, fixed seat; 22, pin; 23, connecting piece; 24, fixed column; 241, telescopic column; 242, bottom column; 243, receiving groove; 244, spring; 245, pressure plate; 25, fixing nut; 26, connecting seat; 27, locking seat. Detailed Implementation

[0014] Please see Figures 1-5 This utility model provides an anti-disengagement locking assembly for a crane hook, including a hook body 100, a locking mechanism 200 on the hook body 100, and a fixing seat 21 fixedly mounted on the end of the hook body 100. A connecting piece 23 is movably mounted on the fixing seat 21 via a pin 22, and a fixing post 24 is provided on the top of the connecting piece 23. A locking seat 27 is provided on the fixing post 24, and a fixing nut 25 is screwed through the locking seat 27 to the fixing post 24.

[0015] Working principle: When in use, the rope to be suspended is suspended on the hook body 100. At this time, hold the fixing post 24 and rotate the fixing post 24 along the pin 22. Rotate the fixing post 24 180 degrees so that the upper part of the fixing post 24 is locked inside the locking seat 27 and fixed by screwing in the fixing nut 25. By using the locking function of the fixing post 24, the rope can be locked inside the hook body 100 and will not come off, thus ensuring safety when suspending heavy objects.

[0016] In a preferred embodiment, the hook body 100 also includes multiple sets of limiting seats 11, and the multiple sets of limiting seats 11 are equidistantly distributed along the inner wall of the hook body 100.

[0017] A limiting space 12 is formed between two adjacent sets of limiting seats 11, and the limiting seats 11 are in the shape of an isosceles trapezoid.

[0018] An extension bracket 13 is fixedly provided at the end of the hook body 100, and the extension bracket 13 is inclined at 45 degrees.

[0019] like Figure 1 As shown: Multiple sets of equidistant limiting seats 11 can separate and position the suspended ropes through the limiting space 12, preventing multiple ropes from getting tangled or sliding during hoisting, ensuring that each rope is subjected to uniform force, and preventing the hook body 100 from becoming unbalanced due to rope deviation; the isosceles trapezoidal limiting seat 11 structure can fit the rope surface better than other shapes, which not only increases the contact area with the rope and reduces local pressure, but also guides the rope to accurately enter the limiting space 12 through the inclined surface of the trapezoid, improving the convenience and stability of rope placement; The extension bracket 13, which is tilted at 45 degrees at the end, can expand the receiving range at the entrance of the hook body 100, making it easier for operators to align the hook opening when suspending the rope, reducing the difficulty of operation. At the same time, it can also play a certain guiding and supporting role for the rope, preventing the rope from slipping off the end of the hook body 100 in the initial stage of suspension, further improving work efficiency and safety.

[0020] In a preferred embodiment, the locking mechanism 200 also includes a connecting seat 26 fixed on the hook body 100, and the end of the connecting seat 26 is provided with a locking seat 27. Both the locking seat 27 and the fixing seat 21 are U-shaped.

[0021] The fixed column 24 has a telescopic column 241 at the bottom, and a pressure plate 245 is fixed at the bottom of the telescopic column 241. The fixed column 24 has a bottom column 242 below it, and a receiving groove 243 is opened inside the bottom column 242. A spring 244 is installed inside the receiving groove 243.

[0022] A spring 244 is sleeved on the telescopic column 241, and the pressure plate 245 is circular and is slidably disposed inside the receiving groove 243.

[0023] like Figure 1 and Figure 5 As shown: When it is necessary to lock the rope inside the hook body 100, the fixed column 24 is pulled upward, so that the pressure plate 245 at the bottom of the telescopic column 241 can compress the spring 244. At this time, the fixed column 24 is lifted upward. The fixed column 24 is also provided with a circular piece, which is used to lock onto the surface of the locking seat 27. Then, two sets of fixing nuts 25 are screwed onto the upper and lower sides of the fixed column 24 respectively. The two sets of fixing nuts 25 are distributed on the upper and lower sides of the locking seat 27 respectively, thus completing the sealing work of the fixed column 24 on the hook body 100.

[0024] like Figures 1-4 As shown: During operation, after hanging the rope to be suspended on the hook body 100, simply hold the fixing post 24 and rotate it 180 degrees along the pin 22, then insert the upper part of the fixing post 24 into the locking seat 27 and screw it in place with the fixing nut 25. The whole process is clear and simple, and can be completed without complicated tools. At the same time, the physical locking of the fixing post 24, combined with the tightening effect of the fixing nut 25, can stably confine the rope inside the hook body 100. This double protection can effectively prevent the rope from coming off the hook due to shaking or bumps during hoisting, greatly improving the safety of the operation. In addition, this structure relies on mechanical snap-fit ​​and screw-fit fixation, the parts are stably matched, the locking effect is not easily affected by external factors, and it can adapt to the suspension needs of different weights and types of ropes, making it widely applicable.

Claims

1. A crane hook anti-disengagement locking assembly, comprising a hook body (100), characterized in that: The hook body (100) is provided with a locking mechanism (200), and the locking mechanism (200) includes a fixed seat (21) fixed at the end of the hook body (100). The fixed seat (21) is provided with a connecting piece (23) movably via a pin (22), and the top of the connecting piece (23) is provided with a fixing post (24). The fixing post (24) is provided with a locking seat (27), and the fixing post (24) is threaded through the locking seat (27) with a fixing nut (25).

2. The anti-disengagement locking assembly for a crane hook according to claim 1, characterized in that: The hook body (100) also includes multiple sets of limiting seats (11), and the multiple sets of limiting seats (11) are equidistantly distributed along the inner wall of the hook body (100).

3. The anti-disengagement locking assembly for a crane hook according to claim 2, characterized in that: A limiting space (12) is formed between two adjacent sets of limiting seats (11), and the limiting seats (11) are in the shape of an isosceles trapezoid.

4. The anti-disengagement locking assembly for a crane hook according to claim 2, characterized in that: An extension bracket (13) is fixedly provided at the end of the hook body (100), and the extension bracket (13) is inclined at 45 degrees.

5. The anti-disengagement locking assembly for a crane hook according to claim 1, characterized in that: The locking mechanism (200) also includes a connecting seat (26) fixed on the hook body (100), and a locking seat (27) is provided at the end of the connecting seat (26). Both the locking seat (27) and the fixing seat (21) are U-shaped.

6. The anti-disengagement locking assembly for a crane hook according to claim 5, characterized in that: The bottom of the fixed column (24) is provided with a telescopic column (241), and the bottom of the telescopic column (241) is fixed with a pressure plate (245). The bottom column (242) is provided below the fixed column (24), and the bottom column (242) is provided with a receiving groove (243), and a spring (244) is installed inside the receiving groove (243).

7. The anti-disengagement locking assembly for a crane hook according to claim 6, characterized in that: A spring (244) is sleeved on the telescopic column (241), and the pressure plate (245) is circular and is slidably disposed inside the receiving groove (243).

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