A multi-layer corrugated paperboard carton structure with a compression-resistant structure

Abstract

The application discloses a multi-layer corrugated paper box structure with a compression-resistant structure, and belongs to the technical field of corrugated paper boxes. The multi-layer corrugated paper box structure comprises a box body, an inner support fixedly connected to the inner wall of the box body, a thickened outer plate fixedly connected to the outer side wall of the box body, an inner groove formed in the thickened outer plate, a buffer mechanism arranged in the inner cavity of the inner groove, a plug-in hole formed in the middle of the outer wall of the thickened outer plate, and a waterproof sealing strip adhered to the outer wall of the thickened outer plate. The inner support is integrally molded by five layers of corrugated paper boards on the inner wall of the box body, and is stably bonded to the box wall by corn starch adhesive. Compared with a traditional simple splicing support, the multi-layer corrugated paper box structure can not only avoid the problem of support loosening and displacement in long-time transportation and bumping, but also can provide sustained and stable internal support for the box body, greatly improve the anti-deformation capacity of the box wall, and effectively reduce the damage of goods caused by the concave and wrinkled box body.

Description

Technical Field

[0001] This application relates to the field of corrugated cardboard box technology, and more specifically, to a multi-layer corrugated cardboard box structure with an internal compression-resistant structure. Background Technology

[0002] Corrugated cardboard boxes have become a core carrier in the modern logistics packaging field due to their advantages such as lightweight, recyclability, and controllable cost. They are widely used in e-commerce express delivery, industrial parts transportation, fresh food cold chain, and electronic product packaging. However, with the increasing complexity of logistics processes, such as the increase in the number of transfers, the increase in stacking height, and the upgrading of special scenario requirements such as cold chain humid environments and long-distance trunk transportation, the structural defects of existing corrugated cardboard boxes have gradually become prominent, making it difficult to meet the performance requirements of practical applications.

[0003] In related technologies, to prevent dust from easily entering the box through the lifting hole, for example, the prior art patent with publication number CN201820356480.9 provides a corrugated cardboard box. This corrugated cardboard box uses a sliding baffle to open or close the lifting hole, making it more convenient for people to lift and place the corrugated cardboard box. At the same time, dust is not easily allowed to enter the interior of the corrugated cardboard box through the lifting hole. Furthermore, after the lifting hole is covered, the air inside the corrugated cardboard box can be dried by the desiccant at the top of the baffle, thereby improving the preservation time of the items inside the corrugated cardboard box.

[0004] While the existing technical solutions mentioned above have solved the problem of dust entering the box and contaminating the contents, the box lacks a stable and high-strength support structure. Traditional cardboard boxes are mostly made of single-layer or simple multi-layer corrugated cardboard spliced ​​together. Even if a simple cross-shaped support is added, it is easy to loosen and shift during long-term transportation and bumps, which reduces the box wall's resistance to deformation and ultimately causes the goods to be crushed and damaged. In addition, there is a lack of cushioning structure.

[0005] In view of this, we propose a multi-layer corrugated cardboard box structure with an internal compression-resistant structure. Utility Model Content

[0006] The purpose of this application is to provide a multi-layer corrugated cardboard box structure with an internal compression-resistant structure, which can effectively solve the problem of the lack of stable and high-strength support and cushioning structures in the prior art, and achieve the effect of improving compression resistance.

[0007] This application provides a multi-layer corrugated cardboard box structure with an internal compression-resistant structure, including a box body, an inner support fixedly connected to the inner wall of the box body, and a thickened outer plate fixedly connected to the outer wall of the box body, wherein an internal groove is provided inside the thickened outer plate; A buffer mechanism is placed in the inner cavity of the built-in groove. A plugging hole is opened in the middle of the outer wall of the thickened outer plate, and a waterproof seal is adhered to the outer wall of the thickened outer plate.

[0008] As an optional solution to the technical solution in this application, the inner support is integrally molded from five layers of corrugated cardboard, and the inner support is bonded to the inner wall of the box with corn starch adhesive.

[0009] As an optional solution to the technical solution of this application, the buffer mechanism includes two corrugated cardboard folding springs placed in the inner cavity of the built-in groove, and the corrugated cardboard folding springs are distributed on both sides of the inner cavity of the built-in groove.

[0010] As an optional solution to the technical solution in this application, the gaps between the corrugated cardboard folding springs are filled with micro-honeycomb paper cores.

[0011] As an optional solution to the technical solution of this application, the inner wall of the insertion hole is provided with easy-to-remove side holes on both sides.

[0012] As an optional solution to the technical solution in this application, the corrugated cardboard folding spring is wavy.

[0013] As an optional solution to the technical solution in this application, the unit cell of the micro honeycomb paper core is a regular hexagon, and the contact surfaces of the micro honeycomb paper core and the corrugated cardboard folding spring are coated with water-based environmentally friendly adhesive.

[0014] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: This application utilizes an internal support frame formed by integral molding of five layers of corrugated cardboard on the inner wall of the container, and firmly bonded to the container wall with corn starch adhesive. Compared with traditional simple splicing support frames, this not only avoids the problem of support frame loosening and displacement during long-term transportation and bumps, but also provides continuous and stable internal support for the container, greatly improving the deformation resistance of the container wall and effectively reducing the damage to goods caused by the squeezing of the goods due to dents and wrinkles in the container.

[0015] This application utilizes a cushioning mechanism within a thickened outer panel, employing a synergistic design of corrugated cardboard folding springs on both sides and a hexagonal micro-honeycomb paper core with gaps. Furthermore, the contact surfaces between the micro-honeycomb paper core and the springs are coated with water-based environmentally friendly adhesive to ensure structural integrity. This overcomes the shortcomings of traditional single-cushioning structures, such as those relying solely on corrugated core paper or bubble wrap, which cannot simultaneously provide vertical and lateral impact resistance. The combination of spring elastic deformation and honeycomb paper core stress dispersion achieves efficient energy absorption. The design also features insertion holes and easy-to-disassemble side holes, facilitating assembly and making it suitable for special scenarios such as cold chain, humid conditions, and outdoor transportation. In addition, all key structures use environmentally friendly materials such as cornstarch adhesive and water-based environmentally friendly adhesives, ensuring high strength and high cushioning performance while also considering recyclability and cost control. Ultimately, this allows the cardboard box to meet the demands of modern logistics with multiple transfers, high stacking heights, and complex environments, significantly reducing cargo transportation damage rates and packaging maintenance costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a multi-layer corrugated cardboard box with an internal compression-resistant structure, as disclosed in a preferred embodiment of this application. Figure 2 This is a schematic diagram showing the disassembled structure of a multi-layer corrugated cardboard box with an internal compression-resistant structure, as disclosed in a preferred embodiment of this application. Figure 3 This is a schematic diagram of the disassembled thickened outer panel of a multi-layer corrugated cardboard box structure with an internal compression-resistant structure, as disclosed in a preferred embodiment of this application. Figure 4 This is a schematic diagram of the disassembled structure of the buffer mechanism of a multi-layer corrugated cardboard box structure with an internal compression-resistant structure, as disclosed in a preferred embodiment of this application. Figure 5 This is an enlarged view of point A of a multi-layer corrugated cardboard box structure with an internal compression-resistant structure, as disclosed in a preferred embodiment of this application.

[0017] The following are the labels in the diagram: 1. Box body; 2. Inner support frame; 3. Thickened outer panel; 4. Internal groove; 5. Buffer mechanism; 51. Corrugated cardboard folding spring; 52. Micro honeycomb paper core; 6. Insertion hole; 7. Waterproof seal; 8. Easy-to-remove side hole. Detailed Implementation

[0018] The present application will be further described in detail below with reference to the accompanying drawings.

[0019] Reference Figures 1-5 This application discloses a multi-layer corrugated cardboard box structure with an internal anti-compression structure, including a box body 1. An inner support 2 is fixedly connected to the inner wall of the box body 1. The inner support 2 is integrally molded from five layers of corrugated cardboard, and the inner support 2 is bonded to the inner wall of the box body 1 with corn starch adhesive to form a "three-dimensional support network" inside the box. A thickened outer plate 3 is fixedly connected to the outer wall of the box body 1. An internal groove 4 is opened in the interior of the thickened outer plate 3 to form an outer protective barrier for the box body 1. At the same time, the internal groove 4 is opened to accommodate a buffer mechanism 5. The buffer mechanism 5 is placed in the inner cavity of the built-in groove 4. The middle of the outer wall of the thickened outer plate 3 is provided with a plugging hole 6 to provide an operating port for the installation and replacement of the buffer mechanism 5. Both sides of the inner wall of the plugging hole 6 are provided with easy-to-remove side holes 8 to assist in the removal and replacement of the buffer mechanism 5. The buffer can be pushed out of the plugging hole 6 by the easy-to-remove side holes 8. The outer wall of the thickened outer plate 3 is adhered with a waterproof seal 7 to cover the plugging hole 6 and form a sealing barrier.

[0020] Reference Figure 3 , Figure 4 and Figure 5The buffer mechanism 5 includes two corrugated cardboard folding springs 51 placed inside the cavity of the built-in groove 4. The corrugated cardboard folding springs 51 are distributed on both sides of the cavity of the built-in groove 4. The gaps between the corrugated cardboard folding springs 51 are filled with micro honeycomb paper cores 52. The corrugated cardboard folding springs 51 are wavy, and the unit cells of the micro honeycomb paper cores 52 are regular hexagons. The regular hexagonal structure has the characteristic of uniformly transmitting force in multiple directions. When facing the stress of the goods impacting the box wall laterally, it can disperse the local stress to the entire honeycomb structure and avoid local indentation of the box wall. The contact surfaces of the crests and troughs of the micro honeycomb paper cores 52 and the corrugated cardboard folding springs 51 are coated with water-based environmentally friendly adhesive, which absorbs the impact energy through elastic deformation.

[0021] In summary, the multi-layer corrugated cardboard box structure with internal anti-compression structure disclosed in this application uses the box body 1 as the basic frame. The inner support 2, whose inner wall is fixed by corn starch adhesive, first constructs a "three-dimensional support network" inside the box. When the box is subjected to stacking pressure or transportation bumps, the inner support 2, with its integrally formed structural strength and stable bonding characteristics, directly resists the deformation trend of the inner wall of the box body 1, avoiding the box wall dent caused by the loosening of traditional simple supports, and providing a continuous and stable internal bearing space for goods. Meanwhile, the thickened outer plate 3 on the outer side wall of the box 1 forms an outer protective barrier, and the buffer mechanism 5 housed in the built-in groove 4 plays a dynamic energy absorption role. When the carton is subjected to a vertical drop or impact, the corrugated cardboard folding springs 51 on both sides absorb the impact energy through elastic deformation, while the regular hexagonal micro honeycomb paper core 52 filled in the spring gaps uses the multi-directional force transmission characteristics of the regular hexagon to disperse the local stress generated by the lateral impact of the goods on the box wall to the entire honeycomb structure, avoiding local damage to the box wall and achieving double buffering. In addition, the waterproof seal 7 on the outer wall of the thickened outer panel 3 covers the insertion hole 6, forming a sealed barrier that can prevent moisture or outdoor dust in the humid environment of the cold chain from entering the inner groove 4, and prevent the cushioning mechanism 5 from becoming damp and failing. When the cushioning mechanism 5 needs to be replaced, the old part can be easily removed and the new part can be installed through the easy-to-remove side hole 8 on the inner wall of the insertion hole 6. The whole process does not require disassembling the box body 1. Finally, through the cooperation of various components, the carton can maintain high strength and resistance to pressure and impact under complex logistics conditions, and also has the characteristics of being environmentally friendly, recyclable and easy to maintain.

Claims

1. A multi-layer corrugated cardboard box structure with an internal compression-resistant structure, characterized in that, Include: Box (1), the inner wall of the box (1) is fixedly connected to an inner support (2), the outer wall of the box (1) is fixedly connected to a thickened outer plate (3), and the thickened outer plate (3) has an internal groove (4) inside. The buffer mechanism (5) is placed in the inner cavity of the built-in groove (4). The thickened outer plate (3) has a plug hole (6) in the middle of its outer wall. The thickened outer plate (3) has a waterproof seal (7) attached to its outer wall.

2. The multi-layer corrugated cardboard box structure with an internal compression-resistant structure according to claim 1, characterized in that: The inner support (2) is integrally molded from five layers of corrugated cardboard, and the inner support (2) is bonded to the inner wall of the box (1) with corn starch adhesive.

3. The multi-layer corrugated cardboard box structure with an internal compression-resistant structure according to claim 1, characterized in that: The buffer mechanism (5) includes two corrugated cardboard folding springs (51) placed in the inner cavity of the built-in groove (4), and the corrugated cardboard folding springs (51) are distributed on both sides of the inner cavity of the built-in groove (4).

4. The multi-layer corrugated cardboard box structure with an internal compression-resistant structure according to claim 3, characterized in that: The gaps in the corrugated cardboard folding springs (51) are filled with micro-honeycomb paper cores (52).

5. The multi-layer corrugated cardboard box structure with an internal compression-resistant structure according to claim 1, characterized in that: The inner wall of the insertion hole (6) is provided with easy-to-remove side holes (8) on both sides.

6. The multi-layer corrugated cardboard box structure with an internal compression-resistant structure according to claim 3, characterized in that: The corrugated cardboard folding spring (51) is wavy.

7. The multi-layer corrugated cardboard box structure with an internal compression-resistant structure according to claim 4, characterized in that: The unit cell of the micro honeycomb paper core (52) is a regular hexagon, and the contact surfaces of the micro honeycomb paper core (52) and the corrugated cardboard folding spring (51) are coated with water-based environmentally friendly adhesive.

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