Lifting hook assembly of balance crane

By designing structures such as support arms, support plates, spherical grooves, and spherical rotating shafts, the problem of tilting and slipping of existing hook assemblies during the lifting of complex workpieces has been solved, enabling multi-angle adaptive lifting and improving lifting safety and efficiency.

CN224076924UActive Publication Date: 2026-04-03JINING LUTE MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing balancer hook assemblies are prone to tilting, swaying, or slipping when faced with workpieces that are complex in shape, unevenly stressed, or have a shifted center of gravity. They also have low adaptability and cannot be flexibly adjusted, which affects the safety and efficiency of lifting operations.

Method used

A hook assembly comprising a support arm, a support plate, a locking knob, a spherical groove, and a spherical pivot has been designed. The support arm is adjustable at multiple angles, the support plate provides additional bottom support, the spherical groove and the spherical pivot form a spherical hinge structure, and the hook can swing in multiple directions. Combined with a hydraulic telescopic arm and shock-absorbing pads, the stability and adaptability of the lifting operation are improved.

Benefits of technology

It achieves multi-angle adaptability to objects of different shapes and specific lifting conditions, prevents tilting or slippage, improves the safety and stability of the lifting process, reduces operational complexity, and increases work efficiency.

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Abstract

The utility model relates to the technical field of balance crane devices, and discloses a lifting hook assembly of a balance crane, which comprises an assembly main body, the assembly main body further comprises an auxiliary supporting module, the auxiliary supporting module comprises two supporting arms, the supporting arms are movably mounted on the two sides of a mounting groove through joints, and the supporting arms are connected with the auxiliary supporting module. Rotary joints are arranged on the supporting arms; the number of the supporting plate bodies is two, and the supporting plate bodies are movably installed at the tail ends of the supporting arms through rotating joints; the number of the locking rotary knobs is six, each set of supporting arms is provided with three locking rotary knobs, and the locking rotary knobs are all arranged at the joints of the supporting arms. And by arranging the auxiliary supporting module, the supporting arm can be adjusted at multiple angles, the adaptability to a hoisted object is improved, the supporting plate body provides additional bottom support in the hoisting process, and the situation that the hoisted object inclines or slides off due to the unstable gravity center is prevented.
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Description

Technical Field

[0001] This utility model relates to the technical field of balance crane devices, and more specifically to a hook assembly for a balance crane. Background Technology

[0002] Existing balance crane hook assemblies mainly employ a fixed structure, typically allowing only a single hook for lifting heavy objects. When handling workpieces with complex shapes, uneven stress, or shifted centers of gravity, tilting, swaying, or slipping can easily occur, affecting the safety and stability of lifting operations. Particularly when moving long, cylindrical, or irregularly shaped objects, traditional hook devices often fail to provide sufficient bottom support, causing the object to shift during lifting, or even accidentally fall due to uneven stress, posing significant safety hazards. Furthermore, existing hook assemblies have low adaptability, unable to be flexibly adjusted according to different working conditions. Some equipment requires reinstalling hooks of different specifications when changing the object being lifted, making the operation cumbersome and reducing work efficiency. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a hook assembly for a balance crane to solve the problems existing in the background art.

[0004] This utility model provides the following technical solution: a hook assembly for a balance crane, comprising an assembly body, the assembly body including a mounting groove, the mounting groove having multiple mounting holes, each mounting hole having a through-hole inserted rod, the bottom end of the mounting groove being provided with a hook body, the assembly body further including an auxiliary support module, the auxiliary support module including:

[0005] Support arms, the number of which is two, both of which are movably mounted on both sides of the mounting slot via joints, and both of which are provided with rotary joints;

[0006] The support plate consists of two plates, each of which is movably mounted at the end of the support arm via a rotary joint.

[0007] The locking knobs are six in number, with three on each support arm, and all locking knobs are located at the joints of the support arms.

[0008] Two anti-slip pads are provided, and both are fixedly installed on the top of the support plate.

[0009] The auxiliary support module allows the support arm to be adjusted at multiple angles, improving its adaptability to the objects being lifted. The support plate provides additional bottom support during lifting to prevent the object from tilting or slipping due to an unstable center of gravity. The locking knob can fix the support arm at different angles by locking, making the support structure more stable.

[0010] Furthermore, a spherical groove is fixedly installed at the bottom of the mounting groove, and a spherical rotating shaft is movably installed inside the spherical groove. The bottom end of the spherical rotating shaft is fixedly connected to the top end of the hook body. By setting the spherical groove and the spherical rotating shaft, a spherical hinge structure is formed, allowing the hook body to swing freely in multiple directions, avoiding tilting caused by uneven force during hoisting and improving hoisting stability.

[0011] Furthermore, a dustproof sleeve is fixedly installed at the bottom end of the spherical groove, and the dustproof sleeve is tightly fixedly connected to the top of the outer surface of the hook body. By fixing the dustproof sleeve at the bottom end of the spherical groove, the dustproof sleeve tightly covers the top of the outer surface of the hook body, thereby preventing dust and impurities from entering the internal gaps of the spherical groove and the spherical shaft, avoiding the impact of foreign matter accumulation on the rotational flexibility of the spherical shaft, and improving the durability and long-term stability of the ball hinge structure.

[0012] Furthermore, two mounting rings are fixedly installed on each side of the support plate that are close to each other. A support belt is movably installed within each mounting ring. There are two support belts, and each support belt is equipped with a buckle. By setting up the support belts and mounting rings, the support belts can adaptively deform according to the shape of the object being lifted during the lifting process, providing bottom support. At the same time, the buckle structure can improve lifting stability and adapt to objects of different shapes.

[0013] Furthermore, each of the support arms is fixedly equipped with a hydraulic telescopic arm, which is movably connected to both sides of the mounting groove via a pivot joint. By fixing the hydraulic telescopic arm to the top of the support arm, the hydraulic telescopic arm can be extended and retracted during hoisting, improving the adaptability of the support arm. When facing hoisting objects of different sizes, the support range can be flexibly adjusted, thereby improving work efficiency.

[0014] Furthermore, multiple shock-absorbing pads are evenly fixed inside the mounting groove. By setting up shock-absorbing pads, vibrations caused by uneven force or impact can be buffered during hoisting, reducing the structural stress of the hoisting components, improving the durability of the equipment, reducing swaying caused by vibration, and improving the overall safety and stability of the hoisting.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. This utility model, by providing an auxiliary support module, allows the support arm to be adjusted at multiple angles, improving its adaptability to the objects being hoisted. The support plate provides additional bottom support during hoisting to prevent the hoisted object from tilting or slipping due to an unstable center of gravity. The locking knob can fix the support arm at different angles by locking, making the support structure more stable.

[0017] 2. This utility model forms a ball hinge structure by providing a spherical groove and a spherical rotating shaft, which allows the hook to swing freely in multiple directions, avoiding tilting caused by uneven force during hoisting and improving hoisting stability. Attached Figure Description

[0018] Figure 1 This is a frontal sectional view of the structure of this utility model.

[0019] Figure 2 This is a front view schematic diagram of the structure of this utility model.

[0020] Figure 3 This is a top view of part of the structure of this utility model.

[0021] Figure 4 This is a top view of the mounting groove structure of this utility model.

[0022] The attached figures are labeled as follows: 100, mounting groove; 110, insert rod; 111, hook body; 112, support arm; 113, support plate; 114, locking knob; 115, anti-slip pad; 116, spherical shaft; 117, dustproof sleeve; 118, support belt; 119, mounting ring; 120, hydraulic telescopic arm. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Example

[0024] Reference Figure 1 and Figure 2 This utility model provides a hook assembly for a balance crane, including an assembly body. The assembly body includes a mounting groove 100 with multiple mounting holes. Insert rods 110 are inserted through each mounting hole. A hook body 111 is provided at the bottom end of the mounting groove 100. The assembly body also includes an auxiliary support module, which includes:

[0025] Support arm 112, there are two support arms 112, both of which are movably mounted on both sides of the mounting groove 100 via joints, and each support arm 112 is provided with a rotary joint.

[0026] There are two support plates 113, and both support plates 113 are movably mounted at the end of the support arm 112 via a rotary joint.

[0027] There are six locking knobs 114, and three are provided on each set of support arms 112. The locking knobs 114 are all located at the joints of the support arms 112.

[0028] There are two anti-slip pads 115, and both of them are fixedly installed on the top of the support plate 113.

[0029] A spherical groove is fixedly installed at the bottom of the mounting groove 100, and a spherical rotating shaft 116 is movably installed inside the spherical groove. The bottom end of the spherical rotating shaft 116 is fixedly connected to the top end of the hook body 111.

[0030] A dustproof sleeve 117 is fixedly installed at the bottom of the spherical groove, and the dustproof sleeve 117 is tightly fixedly connected to the top of the outer surface of the hook body 111.

[0031] Working principle: The device is installed at the end of the boom via the mounting slot 100 and the insertion rod 110, and is used for lifting operations via the hook 111. The support arm 112 in the auxiliary support module can rotate around the joint to adjust the support angle. The support plate 113 and the anti-slip pad 115 work together to provide bottom support for the lifted object, and the support angle is fixed by the locking function of the locking knob 114 to ensure stability. The spherical pivot 116 and the spherical groove form a ball hinge, allowing the hook 111 to swing flexibly in multiple directions to adapt to different lifting angles. At the same time, the dustproof sleeve 117 effectively prevents dust from entering the spherical groove and the internal gaps of the spherical pivot 116, ensuring the long-term stability and smooth operation of the structure. Example

[0032] Reference Figure 1 The difference between Embodiment 2 and Embodiment 1 is that: two mounting rings 119 are fixedly installed on the side of the support plate 113 that are close to each other, and a support belt 118 is movably installed in the mounting ring 119. There are two support belts 118, and each support belt 118 is provided with a buckle.

[0033] Hydraulic telescopic arms 120 are fixedly installed at the top of each support arm 112. The hydraulic telescopic arms 120 are movably connected to both sides of the mounting groove 100 through a pivot joint. The hydraulic telescopic arms 120 are Sany Heavy Industry's SPK18500 hydraulic telescopic devices.

[0034] Multiple shock-absorbing pads are evenly fixed inside the mounting slot 100.

Claims

1. A hook assembly for a balancer, comprising an assembly body, characterized in that, The main body of the component includes a mounting groove (100), on which a plurality of mounting holes are provided, and a plug rod (110) is installed through each mounting hole. A hook (111) is provided at the bottom end of the mounting groove (100). The main body of the component also includes an auxiliary support module, which includes: Support arms (112), there are two support arms (112), both of which are movably mounted on both sides of the mounting groove (100) by means of joints, and each support arm (112) is provided with a rotary joint; Support plate (113), there are two support plates (113), and the support plates (113) are movably installed at the end of the support arm (112) through a rotary joint; There are six locking knobs (114), and three are provided on each support arm (112). The locking knobs (114) are all located at the joints of the support arms (112). Two anti-slip pads (115) are provided, and both are fixedly installed on the top of the support plate (113).

2. The hook assembly of a balancer according to claim 1, characterized in that: A spherical groove is fixedly installed at the bottom of the mounting groove (100), and a spherical rotating shaft (116) is movably installed inside the spherical groove. The bottom end of the spherical rotating shaft (116) is fixedly connected to the top end of the hook body (111).

3. The hook assembly of a balancer according to claim 2, characterized in that: A dustproof sleeve (117) is fixedly installed at the bottom of the spherical groove, and the dustproof sleeve (117) is tightly fixedly connected to the top of the outer surface of the hook body (111).

4. The hook assembly of a balancer according to claim 1, characterized in that: Two mounting rings (119) are fixedly installed on the side of each support plate (113) that are close to each other. A support belt (118) is movably installed inside each mounting ring (119). There are two support belts (118), and each support belt (118) is provided with a buckle.

5. The hook assembly of a balancer according to claim 1, characterized in that: The top of each support arm (112) is fixedly equipped with a hydraulic telescopic arm (120), and the hydraulic telescopic arm (120) is movably connected to both sides of the mounting groove (100) through a pivot joint.

6. The hook assembly of a balancer according to claim 1, characterized in that: Multiple shock-absorbing pads are uniformly fixed inside the mounting groove (100).