A container spreader for transporting insulated panels

Abstract

This utility model discloses a container spreader for transporting insulated panels, belonging to the field of logistics and transportation technology. The spreader includes a frame structure with openings at the top and bottom. The frame has a rectangular cross-section, with standard corner brackets for crane lifting at the four upper corners. Multiple turnlocks for inserting non-standard corner brackets are symmetrically arranged at the bottom. The frame adopts a stable structure composed of vertical, horizontal, and diagonal bars. The frame height is greater than the width of the insulated panel. It is connected to the crane through the standard corner brackets, and the bottom turnlocks are inserted into the non-standard corner brackets set on the pallet, realizing the rapid and safe transfer of the insulated panels. This spreader solves the problems of existing spreaders being unable to adapt to non-standard corner brackets, having low loading and unloading efficiency, and being prone to damaging materials. It has the advantages of stable structure, simple operation, and strong applicability.

Description

Technical Field

[0001] This utility model relates to the field of logistics and transportation equipment technology, specifically to a special lifting tool for loading, unloading and transferring large-scale boards, especially large-scale building insulation boards, in containers at ports, warehouses or construction sites. Background Technology

[0002] Insulation panels (such as EPS boards and rock wool boards) are commonly used insulation materials in the construction industry. They are typically large in size and relatively fragile. During transportation, especially when loading and unloading containers, the insulation panels stacked on pallets need to be lifted as a whole. Currently, there are two main lifting methods: one is to use ordinary slings (such as wire ropes and lifting straps) to lift them directly. This method is prone to causing the panels to be squeezed and deformed or damaged at the edges, and there is a risk of slippage, resulting in low work efficiency. The other is to use standard container spreaders. However, the twist locks of standard container spreaders are designed to fit with standard container corner fittings, while the pallets carrying the insulation panels are usually equipped with non-standard corner fittings with different structural dimensions, making it impossible to use standard spreaders directly.

[0003] Therefore, current technology lacks a specialized lifting tool that can effectively adapt to non-standard pallet corner fittings while enabling fast and safe operation using existing container cranes. This, to some extent, restricts the logistics efficiency of large-sized panels such as insulated panels and increases the risk of cargo damage. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned defects in the prior art and provide a container spreader that is structurally reasonable, easy to operate, can effectively connect non-standard corner pallets, and ensures the safe and efficient transfer of insulated panels.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a container spreader for transporting insulated large panels, including a frame structure with openings at the top and bottom, the cross-section of the frame structure being rectangular, standard corner pieces for crane lifting being provided at the four upper corners of the frame structure, and multiple turnlocks for inserting non-standard corner pieces being symmetrically provided at the bottom of the frame structure.

[0006] Furthermore, the frame structure includes vertical members, horizontal members, and diagonal members. Multiple vertical members are vertically arranged and distributed in a rectangular pattern. Adjacent vertical members are connected by horizontal members, which are located above and below adjacent vertical members. The upper and lower ends of the vertical members extend beyond the horizontal members. The diagonal members intersect within the frame plane enclosed by the vertical members and horizontal members, thus forming a stable and high-strength spatial truss structure.

[0007] Furthermore, the standard corner bracket is fixedly installed at the upper end of the vertical rod, and the turnlock is fixedly installed at the lower end of the vertical rod. This arrangement makes the force transmission path clear and the structure reliable.

[0008] Furthermore, the height of the frame structure is set to be higher than the width of the insulation panel to be transported, providing ample space for the goods during hoisting and avoiding scratches.

[0009] Furthermore, the standard corner piece and the non-standard corner piece have similar structures and functions but different dimensions. The overall height of the non-standard corner piece is greater than that of the standard corner piece. The insertion depth of the standard corner piece is only sufficient to accommodate the insertion of one turnlock (for connection with the crane frame), while the insertion depth of the non-standard corner piece meets the locking requirements of two turnlocks inserted vertically (i.e., the turnlock of the lifting device is inserted into the non-standard corner piece of the tray).

[0010] Furthermore, the non-standard corner fittings are pre-fixed to the transport pallet. After the insulation panels are placed on the pallet, the spreader is operated so that the twist lock at its lower end inserts into and locks into the non-standard corner fittings of the pallet, thereby connecting the spreader, pallet, and goods into a whole, facilitating transfer using a container crane.

[0011] Compared with existing technologies, this utility model has the following advantages: By combining a bottom turnlock with non-standard corner fittings, it perfectly solves the problem that standard spreaders cannot be used with non-standard pallets, thus broadening the application range of spreaders. Utilizing the standard lifting mode of container cranes, it achieves rapid alignment, insertion, and locking, greatly improving loading and unloading efficiency. The robust frame structure design ensures stability during lifting, avoiding cargo damage and safety hazards that may occur with traditional sling lifting methods. This utility model adopts a space truss structure, effectively controlling the spreader's weight while ensuring sufficient structural strength, thus balancing lightweight design and durability. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a front view of the present invention in the state of connection with the tray.

[0015] Figure 3 This is a side view of the present invention in the state of connection with the tray.

[0016] Figure 4 This is a comparative diagram of standard and non-standard corner pieces in this utility model.

[0017] In the diagram: 1 is the frame structure, 11 is the vertical bar, 12 is the horizontal bar, 13 is the diagonal bar, 2 is the standard corner piece, 3 is the non-standard corner piece, 4 is the turn lock, and 5 is the tray. Detailed Implementation

[0018] The present invention will be further described below with reference to specific embodiments.

[0019] like Figures 1-4 As shown, this utility model discloses a container spreader for transporting insulated large panels, which mainly consists of a rigidly welded frame structure 1. The frame structure 1 comprises four vertical rods 11, several horizontal rods 12 connecting adjacent vertical rods 11, and diagonal rods 13 arranged intersecting within the side frames, forming a robust three-dimensional truss. Standard corner fittings 2 are installed at the four upper corners of the frame structure 1 for connection to the spreader frame of a container gantry crane or quay crane. Rotatable locking turnlocks 4 are installed at the four lower corners of the frame structure 1 (or at positions symmetrically arranged according to the positions of the pallet corner fittings).

[0020] During operation, the insulation panels are first neatly stacked on a special pallet 5 equipped with non-standard corner fittings 3. Then, a crane operates the lifting device described in this invention to move it above the pallet 5, aligns it, and lowers it. Once the rotary lock 4 at the bottom of the lifting device aligns with the insertion hole of the non-standard corner fitting 3 on the pallet, the rotary lock 4 is rotated 90 degrees, causing its locking head to enter the locking hole of the non-standard corner fitting 3 and lock, thus achieving a reliable connection between the lifting device and the pallet 5. Finally, the crane lifts the entire pallet along with the insulation panels for loading onto ships, trucks, or stacking. Because the height of the frame structure 1 is greater than the width of the insulation panels, there is no risk of interference between the goods and the lifting device during transport.

[0021] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A container spreader for transporting insulation boards, characterized in that The frame structure (1) includes an opening at the top and bottom. The cross-section of the frame structure (1) is rectangular. Standard corner pieces (2) for crane lifting are provided on the four upper corners of the frame structure (1). Multiple turn locks (4) for inserting non-standard corner pieces (3) are symmetrically provided at the bottom of the frame structure (1).

2. A spreader for transporting thermal panels according to claim 1, characterized in that, The frame structure (1) includes vertical bars (11), horizontal bars (12) and diagonal bars (13). The vertical bars (11) are arranged vertically and distributed in a rectangular shape. Adjacent vertical bars (11) are connected by horizontal bars (12). The horizontal bars (12) are arranged at the upper and lower parts of adjacent vertical bars (11). The upper and lower ends of the vertical bars (11) extend beyond the horizontal bars (12). The diagonal bars (13) are arranged intersectingly within the frame plane enclosed by the vertical bars (11) and the horizontal bars (12) to enhance structural stability.

3. A container spreader for transporting large panels, according to claim 2, characterised in that, The standard corner piece (2) is fixedly installed at the upper end of the vertical rod (11), and the rotary lock (4) is fixedly installed at the lower end of the vertical rod (11).

4. A spreader for transporting large panels according to claim 1, characterized in that, The height of the frame structure (1) is set to be higher than the width of the insulation panel to be transported, so as to ensure that the insulation panel does not interfere with the lifting equipment during the hoisting process.

5. A container spreader for transporting large panels, according to claim 1, characterized in that, Both the standard corner piece (2) and the non-standard corner piece (3) have insertion holes for inserting rotary locks. The overall height of the non-standard corner piece (3) is greater than the overall height of the standard corner piece (2). The insertion hole depth of the standard corner piece (2) is adapted to the insertion and locking of a single rotary lock. The insertion hole depth of the non-standard corner piece (3) meets the requirements for the vertical insertion and locking of two rotary locks.

6. A container spreader for transporting large panels at a temperature, according to any one of claims 1 to 5, characterized in that, The non-standard corner piece (3) is embedded or fixed on the transport pallet. After the insulation board is placed on the pallet, the non-standard corner piece (3) is inserted and locked by operating the turn lock (4) at the lower end of the lifting device, so as to realize the reliable connection between the lifting device and the pallet and facilitate the overall lifting and transportation.

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