Large container hoisting tool

Abstract

The utility model discloses a large container hoisting tool which comprises two hoisting beams arranged in parallel in the length direction of the hoisting beam and a connecting frame used for connecting the two hoisting beams, connecting plates are arranged at the two ends of each hoisting beam, at least one upper hoisting hole and at least two lower hoisting holes are formed in each connecting plate, and the hoisting beams are connected with the connecting frame. The upper lifting hole is used for being connected with a lifting hook of hoisting equipment through a sling, and the lower lifting hole is used for being connected with a container to be hoisted through a sling. The lifting appliance has the advantages of simple structure and convenience in lifting.

Description

A large container lifting tool Technical Field

[0001] This utility model relates to the field of container lifting tooling technology, and in particular to a large container lifting tooling. Background Technology

[0002] For standard-sized containers, especially in large ports and freight terminals, highly automated specialized spreaders, such as telescopic spreaders, are typically used. These spreaders are complex and expensive: specialized spreaders usually integrate complex hydraulic systems, electrical control systems, and sensors, making their manufacturing, procurement, and subsequent maintenance very costly. They are not suitable for all situations requiring container lifting, especially temporary or non-professional lifting sites. Furthermore, they lack versatility and have limited applicability: for non-standard large containers, equipment containers, mobile prefabricated housing modules, or containers that require bottom-supported lifting due to cargo characteristics or container structure, these top-grabbing specialized spreaders are not applicable.

[0003] In contrast to the complex specialized lifting tools mentioned above, in situations requiring high versatility, operators may attempt to use simpler, general-purpose lifting tools. However, this approach poses serious safety hazards when lifting large containers. Due to the length and volume of large containers, the distribution of cargo inside is often uneven, causing the container's actual center of gravity to deviate from its geometric center. When using a single lifting beam with overly concentrated lifting points, the container is highly susceptible to severe tilting, swaying, or even rotation in the air due to instability of the center of gravity. This not only damages the container and its contents but also seriously threatens the safety of on-site personnel and equipment.

[0004] Therefore, it is necessary to further improve and perfect the existing technology to overcome these shortcomings, and this utility model is made based on this situation. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a large container lifting tool that is simple in structure and convenient for lifting.

[0006] This utility model is achieved through the following technical solution:

[0007] To solve the above-mentioned technical problems, this utility model provides a large container lifting fixture, including two lifting beams arranged parallel to each other along their length, and a connecting frame for connecting the two lifting beams. Both ends of the lifting beams are provided with connecting plates. Each connecting plate is provided with at least one upper lifting hole and at least two lower lifting holes. The upper lifting hole is used to connect with the hook of the lifting equipment through a sling, and the lower lifting hole is used to connect with the container to be lifted through a sling.

[0008] To further address the technical problems to be solved by this utility model, this utility model provides a large container lifting fixture in which at least one upper lifting hole and at least two lower lifting holes are arranged in a triangular distribution on the same connecting plate, wherein the upper lifting hole is located at the vertex of the triangle.

[0009] In order to further solve the technical problems to be solved by this utility model, in a large container lifting fixture provided by this utility model, the connecting plate is perpendicular to the corresponding lifting beam.

[0010] In order to further solve the technical problems to be solved by this utility model, the present utility model provides a large container lifting fixture in which the connecting frame includes at least two connecting beams that are fixed vertically to the lifting beam and parallel to each other, and multiple reinforcing beams that are arranged between the connecting beams or between the connecting beams and the lifting beam.

[0011] To further address the technical problems to be solved by this utility model, the large container lifting fixture provided by this utility model also includes multiple lifting points on the container to be lifted. At least three lifting points are respectively provided at intervals on the bottom of the two long sides of the container to be lifted, and the lifting points and the corresponding lower lifting holes are connected by slings.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] This invention utilizes two parallel lifting beams and a connecting frame to construct a wide and stable rectangular integral lifting frame. The enormous lifting force from the crane is concentrated at the upper lifting hole at the apex, while the load from the container is distributed through the two lower lifting holes, forming a stable mechanical structure that effectively avoids stress concentration and enhances the reliability of the connection. This structure fundamentally solves the core technical problem in existing technologies where large, unevenly sized containers are prone to instability and overturning due to the narrow support base when using a single lifting beam. This invention not only achieves unparalleled lifting stability and safety but also boasts the outstanding advantages of simple structure, low manufacturing cost, and high versatility, allowing it to be used with any general-purpose lifting equipment. Attached Figure Description

[0014] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0015] Figure 1 is a three-dimensional structural diagram of this utility model;

[0016] Figure 2 is a schematic diagram of the usage state of this utility model;

[0017] Figure 3 is a schematic diagram of the second usage state of this utility model. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Please refer to Figures 1 to 3. This utility model provides a large container lifting fixture, the core purpose of which is to provide a solution with a simple structure and extremely high lifting stability. The lifting fixture mainly includes two lifting beams 1, a connecting frame 2, and four connecting plates 3.

[0020] Specifically, the two lifting beams 1 are the main load-bearing components of the entire tooling. They are arranged parallel to each other along their length, defining the overall width of the tooling (usually wider than a container) to accommodate the size of large containers. To form a stable and reliable rectangular frame, a connecting frame 2 is installed between the two lifting beams 1, firmly connecting them together to ensure that the two lifting beams 1 maintain a preset parallel distance during the lifting process.

[0021] In this embodiment, as shown in Figure 1, the connecting frame 2 includes at least two connecting beams 21 and multiple reinforcing beams 22. The two connecting beams 21 are parallel to each other and are welded or bolted between the two hanging beams 1 perpendicular to them, forming the width of the frame. To further enhance the structural rigidity and torsional resistance of the entire frame, multiple reinforcing beams 22 are positioned between the two connecting beams 21, or between the connecting beams 21 and the hanging beams 1, forming multiple stable triangular or grid-like structures. This truss-like design greatly enhances the overall load-bearing capacity of the tooling, preventing deformation under enormous tensile forces.

[0022] A connecting plate 3 is fixedly installed at both ends of each lifting beam 1. Preferably, the surface of the connecting plate 3 is perpendicular to the length direction of the lifting beam 1 to which it is connected, which is beneficial for the direct transmission of force. Each connecting plate 3 is a key component for connecting this tooling with the lifting equipment and the container to be lifted.

[0023] Please refer to Figures 1-3. To achieve a stable and flexible connection, each connecting plate 3 has at least one upper lifting hole 31 and at least two lower lifting holes 32. The upper lifting hole 31 is used to connect lifting equipment (a crane hook not shown in Figure 3), typically connected to the crane hook via a wire rope or sling. The lower lifting holes 32 are used to connect the container to be lifted, typically connected to the lifting point 4 on the container via a wire rope or sling.

[0024] Preferably, the arrangement of the upper lifting hole 31 and lower lifting hole 32 on the same connecting plate 3 has a unique design. As shown in Figure 2, the center points of one upper lifting hole 31 and two lower lifting holes 32 form an isosceles triangle. The upper lifting hole 31 is located at the vertex of the triangle, while the two lower lifting holes 32 are located at the two base angles of the triangle. This layout has significant mechanical advantages: the huge lifting force from the crane is concentrated on the upper lifting hole 31 at the vertex, while the load from the container is distributed through the two lower lifting holes 32, forming a stable mechanical structure, effectively avoiding stress concentration, and enhancing the reliability of the connection.

[0025] The usage process of this utility model is as follows:

[0026] Please refer to Figures 2 and 3. When performing hoisting operations, first, place this hoisting fixture on top of the container to be hoisted. The operator uses four main slings (not shown) to connect the crane hook to the upper lifting holes 31 on the four connecting plates 3 respectively.

[0027] Subsequently, several lifting slings are used, with one end connected to the lower lifting hole 32 on the connecting plate 3, and the other end connected to the lifting points 4 set on the container. For large containers, the lifting points 4 are usually set at the bottom of the long sides of the container, with at least three spaced-apart lifting points 4 on each side.

[0028] The advantage of this tooling lies in its wide rectangular structure, which allows the lower lifting holes 32 on the four connecting plates 3 to correspond to the lifting points 4 separated at the far end of the container bottom, forming an extremely wide support base. Depending on the actual weight distribution of the container, multiple lifting points 4 can be connected to the same lower lifting hole 32 via multiple slings, or one lower lifting hole 32 can be connected to multiple lifting points 4 via multiple slings, so as to flexibly adjust the force on each lifting point.

[0029] When the crane begins lifting, the lifting force is transmitted through the upper lifting hole 31 to the entire jig frame, and then through the lower lifting hole 32 and the working slings to multiple lifting points 4 at the bottom of the container. Because this jig provides a wide and stable rectangular load-bearing frame with dimensions comparable to the bottom of the container, it effectively resists overturning moments caused by uneven cargo distribution and center of gravity deviation within the container. Compared to the traditional method using only a single lifting beam, this jig ensures the container remains stable throughout the lifting process, greatly improving operational safety and efficiency.

[0030] In summary, this utility model, by setting two parallel lifting beams 1 and forming an integral rectangular frame with a connecting frame 2, and in conjunction with the optimized lifting hole layout on the connecting plate 3, achieves the following beneficial effects:

[0031] 1. Simple structure and low cost: It is made of general-purpose profiles such as beams and plates, which significantly reduces manufacturing and maintenance costs compared to specialized telescopic lifting devices with complex structures.

[0032] 2. Stable lifting and high safety: The wide frame structure provides excellent anti-tipping ability, which can effectively solve the problem of stable lifting of large containers with uneven center of gravity.

[0033] 3. High versatility and flexible operation: It can be used with any general-purpose crane and is suitable for lifting various standard or non-standard large boxes from the bottom. The lifting point connection method is flexible and varied.

[0034] 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 large container lifting tool, characterized by: It includes two parallel lifting beams (1) along their length and a connecting frame (2) for connecting the two lifting beams (1). Each end of the lifting beam (1) is provided with a connecting plate (3). Each connecting plate (3) is provided with at least one upper lifting hole (31) and at least two lower lifting holes (32). The upper lifting hole (31) is used to connect with the hook of the lifting equipment through a sling, and the lower lifting hole (32) is used to connect with the container to be lifted through a sling.

2. A large container hoisting tooling according to claim 1, characterized in that: On the same connecting plate (3), at least one upper hanging hole (31) and at least two lower hanging holes (32) are arranged in a triangular distribution, wherein the upper hanging hole (31) is located at the vertex of the triangle.

3. A large container hoisting tooling according to claim 1, characterized in that: The connecting plate (3) is perpendicular to the corresponding hanging beam (1).

4. The large container hoisting tooling according to claim 1, characterized in that: The connecting frame (2) includes at least two connecting beams (21) that are fixed vertically to the hanging beam (1) and parallel to each other, and multiple reinforcing beams (22) that are located between the connecting beams (21) or between the connecting beams (21) and the hanging beam (1).

5. A large container lifting fixture according to claim 1, characterized in that: It also includes multiple lifting points (4) set on the container to be lifted. At least three lifting points (4) are set at intervals on the bottom of the two long sides of the container to be lifted. The lifting points (4) and the corresponding lower lifting holes (32) are connected by slings.

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