Multifunctional lifting appliance for excavator
By designing a multi-functional lifting tool for excavators, the problem of limited space for lifting equipment in port bagged cargo loading and unloading operations was solved, achieving stability and safety in lifting, and improving operational efficiency and flexibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANTAI PORT CO LTD CHINA UNICOM INTERNATIONAL PARTS & GROCERY TERMINAL BRANCH
- Filing Date
- 2025-06-20
- Publication Date
- 2026-05-05
AI Technical Summary
In port cargo and general cargo loading and unloading operations, there are problems such as narrow space, obstruction by obstacles, low operation efficiency and poor safety when hoisting cargo at the hull opening of shore equipment.
Design a multi-functional lifting tool for excavators, including a support rod and a limiting component. The limiting component consists of an anti-detachment baffle, a bushing, and a retaining ring, and is installed on the excavator boom to prevent the support rod from moving and ensure lifting stability. It also enables the lifting of goods through lifting lugs, adapting to different cargo needs.
It improves the safety and efficiency of hoisting operations, adapts to working in narrow spaces, moves flexibly, replaces large tire cranes, expands the operating range, reduces human-machine interaction, and improves operational convenience.
Smart Images

Figure CN224199014U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lifting equipment technology, specifically to a multi-functional lifting equipment for excavators. Background Technology
[0002] Port cargo handling, including bagged and general cargo loading and unloading, primarily relies on quayside equipment such as gantry cranes and quay cranes. While quayside equipment is suitable for lifting cargo at the cargo hold opening, lifting cargo in the warehouse presents some limitations and challenges, affecting operational efficiency and safety.
[0003] The space inside the ship's hold is usually quite narrow, with goods piled up densely. The booms and grabs of shore-based equipment are often obstructed by surrounding cargo or other obstacles during extension and operation, hindering their free movement and accurate cargo grabbing. Current technology uses tire-mounted cranes to lift cargo into the hold for operations. However, tire-mounted cranes have long booms, typically 18-21 meters, requiring significant space. They are also prone to bumping into and damaging other facilities during operation. Furthermore, operations inside the hold require frequent repositioning, while tire-mounted cranes are better suited for fixed-point operations, resulting in slow relocation and reduced operational efficiency. Utility Model Content
[0004] This utility model addresses existing technical problems by providing a multi-functional lifting tool for excavators.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A multi-functional lifting tool for excavators includes a support rod and a limiting assembly. The support rod is used to be installed on the excavator boom. The limiting assembly is symmetrically provided on the support rod at both ends of the excavator boom. The limiting assembly includes an anti-detachment baffle, a bushing, and a retaining ring. The anti-detachment baffle is detachably installed at the end of the support rod. The bushing is sleeved on the support rod and extends along the length direction of the support rod. The retaining ring is installed on the support rod and is located between the bushing and the excavator boom. The size of the anti-detachment baffle and the retaining ring is larger than the size of the bushing.
[0006] Based on the above technical solution, the present invention can be further improved as follows:
[0007] Preferably, it also includes a lifting lug, which is installed on the bushing and has a lifting hole.
[0008] Preferably, the diameters of the anti-detachment baffle and the retaining ring are both larger than the diameter of the bushing.
[0009] Preferably, the anti-detachment baffle is detachably mounted on the support rod by fastening bolts.
[0010] The beneficial effects of this utility model are as follows: By limiting the position of the support rod through the limiting component, it prevents the support rod from shifting along the mounting holes of the excavator's boom, ensuring stability and safety during lifting. By installing an anti-detachment baffle at the end of the support rod, goods with bag buckles can be directly lifted onto the bushing, and automatic unhooking can be achieved during unloading, reducing human-machine interaction and improving operational safety. It can also be used to hang slings, ropes, etc., through the lifting holes on the lifting lugs, making it highly adaptable. By matching this multi-functional lifting tool with an excavator for in-cabin operation, the excavator's space requirements are relatively low, allowing operation in confined spaces with high safety. The excavator's relatively agile movement allows for rapid repositioning for lifting, improving operational efficiency. Furthermore, by adjusting the boom's amplitude, it can lift goods over long distances, providing a relatively wide operating range and replacing large tire cranes for in-cabin operations, improving the efficiency and flexibility of lifting operations. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the multi-functional lifting device of this utility model;
[0012] Figure 2 This is a schematic diagram of the anti-detachment baffle of this utility model;
[0013] Figure 3 This is a schematic diagram of the retaining ring of this utility model;
[0014] Figure 4 This is a schematic diagram of the lifting lug of this utility model.
[0015] The attached diagram is labeled as follows: 1. Support rod; 2. Anti-detachment baffle; 3. Bushing; 4. Retaining ring; 5. Lifting lug; 51. Lifting hole; 6. Excavator boom; 7. Fastening bolt. Detailed Implementation
[0016] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0017] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. The terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are 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.
[0018] like Figures 1 to 4 As shown, this utility model discloses a multi-functional lifting tool for excavators, including a support rod 1 and a limiting assembly. The support rod 1 is used to install on the excavator boom 6. The excavator boom 6 has mounting holes, and a sliding sleeve is provided in the mounting holes. The support rod 1 is installed on the sliding sleeve. The limiting assembly is symmetrically provided on the support rod 1 at both ends of the excavator boom 6 to ensure overall stability and prevent tilting. The limiting assembly includes an anti-detachment baffle 2, a bushing 3, and a retaining ring 4. The anti-detachment baffle 2 is detachably installed on the end of the support rod 1. Specifically, the anti-detachment baffle 2 is detachably installed on the support rod 1 by fastening bolts 7, which is convenient for disassembly and improves the convenience of operation. The bushing 3 is sleeved on the support rod 1 and extends along the length direction of the support rod 1. The retaining ring 4 is installed on the support rod 1 and is located between the bushing 3 and the excavator boom 6. The size of the anti-detachment baffle 2 and the retaining ring 4 is larger than the size of the bushing 3. The anti-detachment baffle 2, bushing 3, and retaining ring 4 work together to limit the position of the support rod 1, preventing it from shifting and ensuring stability during lifting. The retaining ring 4, installed between the bushing 3 and the excavator boom 6, protects the sliding sleeve inside the mounting hole on the excavator boom 6 and reduces grease leakage, ensuring the multi-functional lifting tool functions properly.
[0019] Excavator booms are typically 5-12 meters long, occupying minimal space and meeting the lifting needs in confined spaces. By assembling this multi-functional lifting tool with an excavator for operation within the cab, lifting operations can be performed in narrow spaces with high safety. Furthermore, the excavator's relatively agile movement allows for rapid repositioning for lifting, improving operational efficiency.
[0020] The multi-functional lifting tool for excavators also includes a lifting lug 5, the upper end of which is mounted on the bushing 3, and the lower end of the lifting lug 5 is provided with a lifting hole 51. Goods can be lifted by attaching slings, ropes, etc., into the lifting hole 51. It is highly adaptable, meets the lifting needs of different goods, and improves ease of use.
[0021] In this embodiment, both the anti-detachment baffle 2 and the retaining ring 4 are circular, and the diameters of both the anti-detachment baffle 2 and the retaining ring 4 are larger than the diameter of the bushing 3. This ensures the limiting effect on the bushing 3 and guarantees stable lifting of goods.
[0022] In an optional embodiment, the anti-detachment baffle 2 is a long strip plate, and the length of the anti-detachment baffle 2 is greater than the outer diameter of the bushing 3, which can also achieve the function of limiting the bushing 3.
[0023] In an optional embodiment, multiple lifting lugs 5 can be installed to enable the simultaneous lifting of multiple goods, further improving lifting efficiency.
[0024] 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, 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 multi-functional lifting tool for excavators, characterized in that, The device includes a support rod (1) and a limiting assembly. The support rod (1) is used to be installed on the excavator boom (6). The limiting assembly is symmetrically provided on the support rod (1) at both ends of the excavator boom (6). The limiting assembly includes an anti-detachment baffle (2), a bushing (3) and a retaining ring (4). The anti-detachment baffle (2) is detachably installed on the end of the support rod (1). The bushing (3) is sleeved on the support rod (1) and extends along the length direction of the support rod (1). The retaining ring (4) is installed on the support rod (1) and is located between the bushing (3) and the excavator boom (6). The size of the anti-detachment baffle (2) and the retaining ring (4) is larger than the size of the bushing (3).
2. The multi-functional lifting tool for excavators according to claim 1, characterized in that, It also includes a lifting lug (5), which is mounted on the bushing (3) and has a lifting hole (51).
3. The multi-functional lifting tool for excavators according to claim 1 or 2, characterized in that, The diameters of the anti-detachment baffle (2) and the retaining ring (4) are both larger than the diameter of the bushing (3).
4. The multi-functional lifting tool for excavators according to claim 1, characterized in that, The anti-detachment baffle (2) is detachably mounted on the support rod (1) by fastening bolts (7).