A double-layer reinforced corrugated cardboard box

Abstract

A double-layer reinforced corrugated cardboard box belongs to the field of packaging container technology. This utility model addresses the problems of insufficient load-bearing capacity, weak impact resistance, and poor structural stability of traditional single-layer corrugated cardboard boxes by proposing a solution that enhances protective performance through a double-layer structure. The key technical points are: the box body consists of an outer box body and an inner reinforcing component. The box body comprises four integrally formed cardboard pieces folded together using creases; the inner reinforcing component consists of four sequentially connected inner cardboard pieces, fixed to the outer layer by adhesive plates with pre-drilled holes, forming a double-layer box wall structure. Pre-compression creases between components enable rapid folding and assembly without additional splicing. This cardboard box, through the combination of embedded cardboard components and adhesive plates, significantly improves the box's compressive strength while maintaining a single-material system, and retains the folding and assembly characteristics of standard cardboard boxes, making it particularly suitable for the transport packaging of electronic equipment and fragile items.

Description

Technical Field

[0001] This utility model relates to the field of packaging container technology, and in particular to a corrugated cardboard box with a double-layer reinforced structure. Background Technology

[0002] Corrugated cardboard boxes are commonly used for the transportation packaging of various products such as electronic equipment and fragile items. As the modern logistics industry continues to raise the requirements for the performance of packaging materials, the limitations of traditional single-layer corrugated cardboard boxes in terms of load-bearing capacity, impact resistance and structural stability are becoming increasingly prominent.

[0003] Traditional corrugated cardboard boxes typically employ a single-layer structure, formed by folding cardboard and bonding with tape. However, their protective effect is increasingly failing to meet current demands. Therefore, a double-layer reinforced corrugated cardboard box is proposed. This design improves the box's compressive strength while maintaining a single-material system, and simultaneously preserves the folding and assembly characteristics of standard cardboard boxes. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies that use a single-layer box structure formed by folding cardboard and bonding with tape, which have gradually failed to meet current needs for protective packaging. Therefore, this invention proposes a double-layer reinforced corrugated cardboard box.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A double-layer reinforced corrugated cardboard box includes a box body, a box bottom, a box lid, and a reinforcing structure;

[0007] The box body comprises four boxboards: No. 1 boxboard, No. 2 boxboard, No. 3 boxboard, and No. 4 boxboard, which are integrally formed in sequence.

[0008] The bottom of the box includes a No. 2 bottom cardboard integrally formed on the No. 2 boxboard and a No. 4 bottom cardboard integrally formed on the No. 4 boxboard;

[0009] The reinforcing structure includes a body reinforcement assembly and a bottom reinforcement assembly;

[0010] The box body reinforcement assembly includes, in sequence, an inner cardboard of No. 1, an inner cardboard of No. 2, an inner cardboard of No. 3, an inner cardboard of No. 4 and an adhesive plate of No. 1. The inner cardboard of No. 1 is integrally formed with the side of the box cardboard of No. 1. The adhesive plate of No. 1 passes through the through hole of No. 1 and the through hole of No. 2 between the box cardboard of No. 1 and the inner cardboard of No. 1, and is attached to the inner cardboard of No. 4.

[0011] The bottom reinforcement assembly includes a No. 3 connecting cardboard integrally formed on the bottom of the No. 3 cardboard, a No. 1 bottom cardboard integrally formed on the bottom of the No. 1 cardboard, and a No. 2 adhesive plate. The No. 2 adhesive plate passes through the No. 3 through hole between the No. 3 cardboard and the No. 3 connecting cardboard and is attached to the No. 3 connecting cardboard.

[0012] The cardboard pieces are connected by folds along the creases, forming a double-layered, compression-resistant structure.

[0013] In one possible design, through holes No. 1 and No. 3 are respectively opened at the creases between the No. 1 inner cardboard and the No. 1 box cardboard, and between the No. 3 box cardboard and the No. 3 connecting cardboard. The No. 1 adhesive plate and the No. 2 adhesive plate pass through the corresponding through holes and are fixed to the inner cardboard.

[0014] In one possible design, the No. 1 adhesive board is formed by extending from the No. 4 boxboard.

[0015] In one possible design, the bottom cardboard of the box is covered by bottom cardboard of the fourth and second layers, and the second adhesive board extends from the bottom cardboard of the first layer.

[0016] In one possible design, the box lid includes a first lid board, a second lid board, a third lid board, and a fourth lid board integrally formed on the top of each box board.

[0017] In one possible design, the lid cardboard is folded inwards through creases to form a closed structure.

[0018] In one possible design, the first, second, and third through holes are rectangular, and their diameters are adapted to the width of the corresponding adhesive board.

[0019] In this application, during actual use, the four cardboard pieces of the box body (box cardboard No. 1, box cardboard No. 2, box cardboard No. 3, and box cardboard No. 4) are folded along creases to form the box structure. The four cardboard pieces reinforcing the box body (inner cardboard No. 1, inner cardboard No. 2, inner cardboard No. 3, and inner cardboard No. 4) are folded inwards to adhere to the box cardboard No. 1, box cardboard No. 2, box cardboard No. 3, and box cardboard No. 4, respectively. Then, the No. 1 adhesive board is inserted through the No. 1 and No. 2 through holes, placing it inside the box (see reference). Figure 4Then, glue or other methods can be used to fix the No. 1 adhesive board to the surface of the No. 4 inner cardboard, thus completing the shaping of the box body. Next, fold the No. 3 connecting cardboard inward, then fold the No. 4 bottom cardboard and the No. 2 adhesive board inward. The No. 4 bottom cardboard and the No. 2 adhesive board will form the preliminary bottom of the box. Then, fold the No. 1 bottom cardboard, which will cover the No. 4 bottom cardboard and the No. 2 bottom cardboard. Insert the No. 2 adhesive board through the No. 3 through hole into the box. Finally, glue or other methods can be used to fix the surface of the No. 2 adhesive board to the No. 3 connecting cardboard, thus completing the entire folding and assembly.

[0020] In this utility model, the corrugated cardboard box with a double-layer reinforced structure can achieve a close fit design between the inner cardboard and the outer cardboard to form a double structure, thereby obtaining a better protective effect.

[0021] In this utility model, the double-layer reinforced corrugated cardboard box can achieve rapid assembly through pre-pressed creases, without the need for individual splicing and fixing between each cardboard.

[0022] In this invention, by using an embedded cardboard assembly in conjunction with an adhesive plate, the compressive strength of the box is improved while maintaining a single material system, and the folding and assembly characteristics of a standard cardboard box are preserved, making it better suited for the transportation and packaging of valuable items. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the flat structure of a double-layer reinforced corrugated cardboard box proposed in this utility model.

[0024] Figure 2 This utility model Figure 1 Enlarged view of the structure of section B;

[0025] Figure 3 This is a preliminary folding structure diagram of a double-layer reinforced corrugated cardboard box proposed in this utility model;

[0026] Figure 4 This is a bottom view of the initial folding structure of a double-layer reinforced corrugated cardboard box proposed in this utility model.

[0027] Figure 5 This utility model Figure 1 Enlarged view of the structure of section A;

[0028] Figure 6 This is a cross-sectional schematic diagram of the No. 3 through hole of a corrugated cardboard box with a double-layer reinforced structure proposed in this utility model.

[0029] Figure 7This is a schematic diagram of the folding structure of a double-layer reinforced corrugated cardboard box proposed in this utility model.

[0030] In the diagram: 1. Carton cardboard No. 1; 2. Carton cardboard No. 2; 3. Carton cardboard No. 3; 4. Carton cardboard No. 4; 5. Inner cardboard No. 1; 6. Inner cardboard No. 2; 7. Inner cardboard No. 3; 8. Inner cardboard No. 4; 9. Lid cardboard No. 1; 10. Lid cardboard No. 2; 11. Lid cardboard No. 3; 12. Lid cardboard No. 4; 13. Bottom cardboard No. 4; 14. Connecting cardboard No. 3; 15. Bottom cardboard No. 2; 16. Bottom cardboard No. 1; 17. Adhesive board No. 2; 18. Through hole No. 3; 19. Through hole No. 1; 20. Through hole No. 2; 21. Adhesive board No. 1. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example 1

[0032] Reference Figure 1 A corrugated cardboard box, comprising: a box body, a box lid, a box bottom, and reinforcing structures.

[0033] The box body is made of four corrugated cardboard pieces in one piece: the left side of the first cardboard piece 1 extends to form the second cardboard piece 2, the left side of the second cardboard piece 2 extends to form the third cardboard piece 3, and the left side of the third cardboard piece 3 extends to form the fourth cardboard piece 4.

[0034] The bottom of the box adopts a double bottom cardboard structure: bottom cardboard No. 2 15 and bottom cardboard No. 4 13 are integrally formed with bottom cardboard No. 2 and bottom cardboard No. 4 13 respectively, and are located at the bottom.

[0035] The box body reinforcement structure is composed of inner cardboard components: inner cardboard 5 extends from the right side of inner cardboard 1, inner cardboard 5 extends to the right side to form inner cardboard 6, inner cardboard 6 extends to the right side to form inner cardboard 7, inner cardboard 7 extends to the right side to form inner cardboard 8, and inner cardboard 4 extends to the left side to form adhesive board 21.

[0036] Creases are provided between each piece of cardboard.

[0037] Reference Figure 2 A first through hole 19 is provided at the crease between the first box cardboard 1 and the first inner cardboard 5, and a second through hole 20 is provided on the side of the first inner cardboard 5 near the first through hole 19.

[0038] Specifically, the four cardboard pieces of the box body (cardboard piece 1, cardboard piece 2, cardboard piece 3, and cardboard piece 4) are folded along creases to form the box structure. The four cardboard pieces reinforcing the box body (inner cardboard piece 5, inner cardboard piece 6, inner cardboard piece 7, and inner cardboard piece 8) are folded inwards to adhere to cardboard pieces 1, 2, 3, and 4 respectively. Then, adhesive board 21 is inserted through through holes 19 and 20, placing it inside the box (see reference). Figure 4 Then, glue or similar materials can be used to fix the No. 1 adhesive board 21 to the surface of the No. 4 inner cardboard 8, thus completing the shaping of the box body and forming a double-layer box structure. The folded state at this point is referenced. Figure 3 and Figure 4 .

[0039] Reference Figure 1 The bottom reinforcement structure of the box consists of No. 3 connecting cardboard 14 and No. 1 bottom cardboard 16: No. 3 connecting cardboard 14 extends from the bottom of No. 3 box cardboard 3, and No. 1 bottom cardboard 16 extends from the bottom of No. 1 box cardboard 1, while No. 2 adhesive board 17 extends from the bottom of No. 1 bottom cardboard 16.

[0040] Reference Figure 5 A through hole 18 is provided at the crease between the cardboard 3 of the third box and the connecting cardboard 14 of the third box.

[0041] Specifically, first fold the No. 3 connecting cardboard 14 inwards, then fold the No. 4 bottom cardboard 13 and the No. 2 adhesive board 17 inwards. The No. 4 bottom cardboard 13 and the No. 2 adhesive board 17 will form the initial bottom of the box. Then fold the No. 1 bottom cardboard 16, which will cover the No. 4 bottom cardboard 13 and the No. 2 bottom cardboard 15. Insert the No. 2 adhesive board 17 through the No. 3 through hole 18 into the box. (Refer to...) Figure 6 Finally, glue or other methods can be used to fix the surfaces of the second bonding board 17 and the third connecting cardboard 14, forming a double-layer bottom structure, thus completing the entire folding assembly. (Refer to...) Figure 7 It achieves better protection through a double-layer structure.

[0042] This application can be used in the field of packaging containers, or in other fields applicable to this application. Example 2

[0043] refer to Figure 1Based on the first embodiment, an improvement is made to a double-layer reinforced corrugated cardboard box, which is applied to the field of packaging containers. The box lid structure is correspondingly set on the top of each box board: the box lid includes a first lid cardboard 9 integrally formed on the top of the first box board 1, a second lid cardboard 10 integrally formed on the top of the second box board 2, a third lid cardboard 11 integrally formed on the top of the third box board 3, and a fourth lid cardboard 12 integrally formed on the top of the fourth box board 4.

[0044] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A corrugated cardboard box with a double-layer reinforced structure, characterized in that, include: Box body, box bottom, box lid and reinforcing structure; The box body comprises a first boxboard (1), a second boxboard (2), a third boxboard (3), and a fourth boxboard (4) that are integrally formed in sequence. The bottom of the box includes a No. 2 bottom cardboard (15) integrally formed on the No. 2 boxboard (2) and a No. 4 bottom cardboard (13) integrally formed on the No. 4 boxboard (4). The reinforcing structure includes a body reinforcement assembly and a bottom reinforcement assembly; The box body reinforcement assembly includes an inner cardboard (5), an inner cardboard (6), an inner cardboard (7), an inner cardboard (8), and an adhesive board (21) integrally formed in sequence. The inner cardboard (5) is integrally formed with the side of the box cardboard (1). The adhesive board (21) passes through the through hole (19) and the through hole (20) between the box cardboard (1) and the inner cardboard (5), and is attached to the inner cardboard (8). The bottom reinforcement assembly includes a No. 3 connecting cardboard (14) integrally formed on the bottom of the No. 3 cardboard (3), a No. 1 bottom cardboard (16) integrally formed on the bottom of the No. 1 cardboard (1), and a No. 2 adhesive board (17). The No. 2 adhesive board (17) passes through the No. 3 through hole (18) between the No. 3 cardboard (3) and the No. 3 connecting cardboard (14) and is attached to the No. 3 connecting cardboard (14). The cardboard pieces are connected by folds along the creases, forming a double-layered, compression-resistant structure.

2. A corrugated cardboard box with a double-layer reinforced structure according to claim 1, characterized in that, The first through hole (19) and the third through hole (18) are respectively opened at the crease between the first inner cardboard (5) and the first box cardboard (1), and between the third box cardboard (3) and the third connecting cardboard (14). The first adhesive plate (21) and the second adhesive plate (17) pass through the corresponding through holes and are fixed to the inner cardboard.

3. A corrugated cardboard box with a double-layer reinforced structure according to claim 1 or 2, characterized in that, The No. 1 adhesive board (21) is formed by extending from the No. 4 boxboard (4).

4. A corrugated cardboard box with a double-layer reinforced structure according to claim 1, characterized in that, The bottom cardboard (16) of the box covers the bottom cardboard (13) and the bottom cardboard (15), and the second adhesive board (17) extends from the bottom cardboard (16).

5. A corrugated cardboard box with a double-layer reinforced structure according to claim 1, characterized in that, The box lids include a No. 1 lid board (9), a No. 2 lid board (10), a No. 3 lid board (11), and a No. 4 lid board (12), which are integrally formed on the top of each box board.

6. A corrugated cardboard box with a double-layer reinforced structure according to claim 5, characterized in that, The cardboard lid of the box is folded inward through creases to form a closed structure.

7. A corrugated cardboard box with a double-layer reinforced structure according to claim 1, characterized in that, The No. 1 through hole (19), No. 2 through hole (20) and No. 3 through hole (18) are rectangular, and the hole diameter is adapted to the width of the corresponding adhesive board.

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