Modularized splicing type corrugated paper tray

Abstract

The utility model discloses a modular splicing type corrugated paper tray, which relates to the field of corrugated paper trays, and is characterized by comprising a top plate and a bottom plate which are spliced together to form the top and the bottom of the corrugated paper tray, and a middle support part positioned between the top plate and the bottom plate, the middle supporting part is divided into the convex part and the groove part which are matched with each other in a concave-convex manner and are respectively fixed with the top plate and the bottom plate, so that only the corresponding top plate and the convex part or the bottom plate and the groove part need to be replaced, the whole tray does not need to be discarded, the problems of resource waste and high maintenance cost are solved, and in the transportation process, the maintenance cost is reduced. External force generated by vibration and extrusion is evenly dispersed to the overall contact face of the protruding part and the groove part through the penetrating structure, stress concentration caused by insufficient local contact area is avoided, meanwhile, the anti-stripping capacity of connection is remarkably improved through the mechanical limiting effect of the penetrating part, and the fixing part is prevented from being torn off from the corrugated paper body.

Description

Technical Field

[0001] This utility model relates to the field of corrugated paper pallets, and more specifically, it relates to a modular splicing type corrugated paper pallet. Background Technology

[0002] Corrugated cardboard pallets are a new type of environmentally friendly transport packaging made primarily from corrugated cardboard through processes such as cutting, folding, and gluing. Their structure typically consists of a corrugated cardboard panel and reinforced corrugated cardboard legs. Utilizing the unique corrugated structure of the cardboard, they possess excellent compression resistance and cushioning properties, effectively protecting goods from collision damage during transportation and storage. They are also lightweight, low-cost, recyclable, and easy to customize. Compared to wooden and plastic pallets, they are more environmentally friendly, and the load-bearing surface and structure can be flexibly designed according to the size of the goods. They are widely used in logistics transportation and warehousing turnover in various industries such as electronics, food, and pharmaceuticals.

[0003] Currently, most corrugated cardboard pallets on the market adopt a one-piece structure design. This structure has obvious drawbacks: once a component is damaged, because the parts are interconnected and difficult to disassemble and replace, the entire pallet must be scrapped, resulting in resource waste, increased usage costs, and a significant impact on practicality. To solve this problem, some corrugated cardboard pallets have been improved to a modular splicing design, enhancing flexibility and maintainability through splicing and assembly. However, these modular pallets have revealed new problems in practical applications. The limited contact area between the connecting parts and the main corrugated cardboard pallet components results in insufficient fixing. During transportation and handling, frequent vibrations and compression can cause uneven stress on the fixing parts. Due to the small contact area, insufficient friction and adhesive force can be provided, making it easy for the fixing parts to be torn off from the corrugated cardboard components. This affects the overall stability and load-bearing capacity of the pallet, weakening the original intended effect of the modular design.

[0004] Therefore, in order to solve the above-mentioned technical problems, this application proposes a modular splicing corrugated paper pallet. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a modular splicing corrugated paper pallet.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a modular splicing corrugated paper pallet, comprising a top plate and a bottom plate spliced ​​together to form the top and bottom of the corrugated paper pallet, and an intermediate support portion located between the top plate and the bottom plate. The intermediate support portion is divided into two parts with a convex-concave fit, namely a protruding part and a recessed part, which are fixed to the top plate and the bottom plate respectively. The protruding part and the recessed part are fixed together by a connecting structure.

[0007] Preferably, the protrusion is installed at the bottom end of the top plate, and the groove is installed at the top end of the bottom plate.

[0008] Preferably, the connecting structure includes a through hole A opened at the side end of the protrusion and passing through the protrusion, and a through hole B opened at the side end of the groove and passing through the groove. A screw is inserted inside the through hole A and the through hole B. One end of the screw is fixedly connected to a side plate, and the other end of the screw is threadedly connected to a nut.

[0009] Preferably, the side plate, screw, and nut are all made of nylon material to reduce weight.

[0010] Preferably, a square rubber pad is bonded to the contact surface between the side plate and the groove, and an annular rubber pad is bonded to the contact surface between the nut and the groove.

[0011] Preferably, a honeycomb-shaped reinforcing layer is provided between the corrugated cardboard of the top plate, bottom plate and intermediate support. The honeycomb-shaped reinforcing layer utilizes the mechanical advantages of the hexagonal honeycomb structure to significantly enhance the compressive strength and deformation resistance of each component without increasing the weight.

[0012] Preferably, the bottom end of the base plate is provided with reinforcing ribs, and the linear structure of the reinforcing ribs enhances the impact resistance and tear resistance of the base plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The intermediate support part of this utility model is disassembled into a protrusion fixed to the top plate and a groove fixed to the bottom plate, forming a modular structure that can be independently disassembled. When a certain part is damaged, only the corresponding top plate plus the protrusion or the bottom plate plus the groove needs to be replaced, without discarding the entire pallet. This solves the problems of resource waste and high maintenance costs. During transportation, the external forces generated by vibration and compression are evenly distributed to the overall contact surface of the protrusion and the groove through the through structure, avoiding stress concentration caused by insufficient local contact area. At the same time, the mechanical limiting effect of the through component significantly improves the anti-peeling ability of the connection and prevents the fixed component from being torn off from the corrugated cardboard body. Thus, while ensuring the modular and flexible maintenance characteristics, the overall structural stability and load-bearing reliability of the pallet are greatly enhanced, thereby solving the problems in the background technology.

[0015] 2. The side plate, screw, and nut of this utility model are all made of nylon material. Nylon has a low density, which greatly reduces the weight of the components while ensuring the connection strength. This is highly consistent with the overall lightweight design concept of the corrugated paper pallet. At the same time, it avoids the extra load on the corrugated paper body caused by the weight of the metal components, and ensures that the modular structure maintains the connection strength during repeated disassembly and assembly and long-term load-bearing.

[0016] 3. In this utility model, a square rubber pad is bonded to the contact surface between the side plate and the groove, and an annular rubber pad is bonded to the contact surface between the nut and the groove. The high coefficient of friction of the rubber pad can effectively prevent the side plate and the nut from shifting or loosening during transportation vibration. Even under long-term alternating load, the surface texture can enhance the mechanical interlocking force of the contact interface, avoiding connection failure of the screw due to nut loosening. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the specific structure of the side of this utility model;

[0020] Figure 3 This is a schematic diagram of the top plate connection structure in this utility model;

[0021] Figure 4 This is a schematic diagram of the bottom plate connection structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the specific structure of the fixing component in the connection structure of this utility model.

[0023] In the diagram: 1. Top plate; 2. Bottom plate; 3. Intermediate support; 301. Protrusion; 302. Groove; 4. Connecting structure; 401. Through hole A; 402. Through hole B; 403. Screw; 404. Side plate; 405. Nut; 5. Square rubber pad; 6. Annular rubber pad. Detailed Implementation

[0024] like Figure 1-5 As shown, this utility model provides a modular splicing corrugated paper pallet, including a top plate 1 and a bottom plate 2 spliced ​​together to form the top and bottom of the corrugated paper pallet, and an intermediate support part 3 located between the top plate 1 and the bottom plate 2. The intermediate support part 3 is divided into two parts with a convex-concave fit, namely a protrusion part 301 and a groove part 302, which are fixed to the top plate 1 and the bottom plate 2 respectively. The protrusion part 301 and the groove part 302 are fixed together by a connecting structure 4. The protrusion part 301 is installed at the bottom end of the top plate 1, and the groove part 302 is installed at the top end of the bottom plate 2.

[0025] This utility model disassembles the intermediate support part 3 into a protrusion 301 fixed to the top plate 1 and a groove 302 fixed to the bottom plate 2, forming a modular structure that can be independently disassembled. When a certain part is damaged, only the corresponding top plate 1 plus the protrusion 301 or bottom plate 2 plus the groove 302 needs to be replaced, without discarding the entire pallet, thus solving the problems of resource waste and high maintenance costs. In terms of connection method, the protrusion 301 and the groove 302 are fixed through a through-type connection structure 4. This structure not only increases the basic contact area by using the concave-convex fit, but also forms a mechanical lock between the two in the direction perpendicular to the contact surface through the through component, so that the connection force is upgraded from simple planar adhesion or local contact to three-dimensional through-type constraint. During transportation, the external forces generated by vibration and compression are evenly distributed to the overall contact surface of the protrusion 301 and the groove 302 through the through structure, avoiding stress concentration caused by insufficient local contact area. At the same time, the mechanical limiting effect of the through component significantly improves the anti-peeling ability of the connection and prevents the fixing components (the sum of the side plate 404, screw 403 and nut 405) from being torn off the corrugated paper body. Thus, while ensuring the modular and flexible maintenance characteristics, the overall structural stability and load-bearing reliability of the pallet are greatly enhanced.

[0026] Furthermore, a honeycomb-shaped reinforcing layer is provided between the corrugated cardboard of the top plate 1, bottom plate 2, and intermediate support 3, and a reinforcing rib is provided at the bottom end of the bottom plate 2. In this way, the honeycomb-shaped reinforcing layer between the corrugated cardboard of the top plate 1, bottom plate 2, and intermediate support 3, combined with the reinforcing rib at the bottom end of the bottom plate 2, can improve the performance of the pallet from multiple dimensions: The honeycomb-shaped reinforcing layer utilizes the mechanical advantages of the hexagonal honeycomb structure to significantly enhance the compressive strength and deformation resistance of each component without increasing the weight. The honeycomb layer of the top plate 1 can evenly distribute the weight of the goods and avoid collapse caused by local overload. The honeycomb layer of the intermediate support 3 can strengthen the vertical support stiffness and reduce bending deformation caused by load. The honeycomb layer of the bottom plate 2, together with the bottom reinforcing rib, can enhance the impact and tear resistance of the bottom plate 2 through the linear structure of the reinforcing rib (especially resisting stress concentration when forklifts insert or ground friction), and can reduce the overall weight through the hollow characteristics of the honeycomb structure, while retaining the cushioning and shock absorption advantages of corrugated cardboard. This design allows the pallet to maintain its lightweight and environmentally friendly properties while comprehensively improving its load-bearing capacity, durability, and structural stability. It not only meets the requirements of modular splicing for the independent strength of components but also satisfies the actual needs of high-frequency handling and stacking in logistics transportation, effectively extending the service life of the pallet and reducing usage costs.

[0027] The present invention also provides a specific structure of the connecting structure 4: the connecting structure 4 includes a through hole A401 opened at the side end of the protrusion 301 and passing through the protrusion 301, and a through hole B402 opened at the side end of the groove 302 and passing through the groove 302. A screw 403 is inserted into the through hole A401 and the through hole B402. One end of the screw 403 is fixedly connected to a side plate 404, and the other end of the screw 403 is threadedly connected to a nut 405.

[0028] During installation, first insert the protrusion 301 on the top plate 1 into the groove 302 on the bottom plate 2 (it should be noted that the side of the groove 302 is thicker). After insertion, the through hole A401 on the protrusion 301 and the through hole B402 on the groove 302 are aligned. Pass the screw 403 through the through holes A401 and B402 so that the side plate 404 abuts against one side of the groove 302. Then, pass the screw 403 through the end of the mounting nut 405. The nut 405 moves along the screw 403 and slowly abuts against the other side of the groove 302, thus completing the assembly of the corrugated cardboard pallet. Conversely, remove the nut 405, pull the screw 403 out of the through holes A401 and B402, and then pull the protrusion 301 off the groove 302 to complete the disassembly of the top plate 1.

[0029] Furthermore, the side plate 404, screw 403, and nut 405 are all made of nylon (traditionally, 404, screw 403, and nut 405 are generally made of metal). Nylon has a low density, which significantly reduces the weight of the components while ensuring connection strength. This is highly consistent with the overall lightweight design concept of the corrugated paper pallet, and at the same time avoids the additional load on the corrugated paper body caused by the weight of the metal components. This ensures that the modular structure maintains connection strength during repeated disassembly and assembly and long-term load-bearing, further improving the practicality and service life of the pallet.

[0030] Furthermore, this utility model also has a square rubber pad 5 bonded to the contact surface between the side plate 404 and the groove 302, and an annular rubber pad 6 bonded to the contact surface between the nut 405 and the groove 302. The high coefficient of friction of the rubber pad can effectively prevent the side plate 404 and the nut 405 from shifting or loosening during transportation vibration. Even under long-term alternating loads, the surface texture can enhance the mechanical interlocking force of the contact interface, preventing the screw 403 from failing due to the loosening of the nut 405. Its elastic buffering characteristics can absorb the impact energy during handling, reduce the stress concentration caused by the direct rigid contact between the nylon parts and the corrugated paper. The flexible deformation of the rubber pad can evenly disperse the clamping force between the side plate 404 and the nut 405, preventing the corrugated paper fibers from being torn due to local overload.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A modular, snap-together corrugated paper pallet, characterized by: It includes a top plate (1) and a bottom plate (2) that are spliced ​​together to form the top and bottom of the corrugated paper tray, and an intermediate support part (3) located between the top plate (1) and the bottom plate (2). The intermediate support part (3) is divided into two parts that fit together, namely a protruding part (301) and a recessed part (302), which are fixed to the top plate (1) and the bottom plate (2) respectively. The protruding part (301) and the recessed part (302) are fixed through the two by a connecting structure (4).

2. A modular, spliced corrugated paper pallet according to claim 1, wherein: The protrusion (301) is installed at the bottom end of the top plate (1), and the groove (302) is installed at the top end of the bottom plate (2).

3. A modular, spliced corrugated paper pallet according to claim 2, wherein: The connecting structure (4) includes a through hole A (401) opened on the side end of the protrusion (301) and passing through the protrusion (301), and a through hole B (402) opened on the side end of the groove (302) and passing through the groove (302). A screw (403) is inserted inside the through hole A (401) and the through hole B (402). One end of the screw (403) is fixedly connected to a side plate (404), and the other end of the screw (403) is threadedly connected to a nut (405).

4. A modular, spliced corrugated paper pallet according to claim 3, wherein: The side plate (404), screw (403) and nut (405) are all made of nylon material.

5. A modular, spliced corrugated paper pallet according to claim 3, wherein: A square rubber pad (5) is bonded to the contact surface between the side plate (404) and the groove (302), and an annular rubber pad (6) is bonded to the contact surface between the nut (405) and the groove (302).

6. The modular, spliced corrugated paper pallet of claim 1, wherein: A honeycomb-shaped reinforcing layer is provided between the corrugated cardboard of the top plate (1), bottom plate (2) and intermediate support part (3).

7. The modular, spliced corrugated paper pallet of claim 1, wherein: The bottom end of the base plate (2) is provided with reinforcing ribs.

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