Double-layer foldable paper box

Abstract

The utility model relates to the technical field of gift boxes, in particular to a double-layer foldable paper box which comprises a rectangular or square bottom face piece, two side face piece sets and two end face piece sets. The side face piece set at least comprises an outer side face piece connected with the side edge of the bottom face piece through a crease, an inner side face piece connected with the outer side face piece through a crease, extension end pieces connected to the two ends of the outer side face piece and connected with the outer side face piece through creases, and inner extension end pieces connected to the two ends of the inner side face piece and connected with the inner side face piece through creases. The end face piece set at least comprises an outer end face piece connected with the bottom face piece through a crease and an inner end face piece connected with the outer end face piece through a crease, an extension end piece and an inner extension end piece are clamped between the outer end face piece and the inner end face piece in a wrapping mode, an integrated cutting structure is optimized, the double-layer stable gift box capable of being rapidly folded can be formed, cost is low, the structure is stable, and the gift box is convenient to use. And large-scale production and application are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of gift box technology, specifically to a double-layer foldable paper box. Background Technology

[0002] In traditional e-cigarette gift box designs, multi-piece assembly is typically used to achieve structural stability and aesthetics. This not only increases production costs but also complicates the manufacturing process. Especially when ensuring good structural strength and appearance quality, traditional methods often rely on additional adhesives or complex locking mechanisms to connect the bottom, sides, and ends, further increasing production difficulty and time.

[0003] To address these issues, gift box designs featuring integrated cutting and rapid folding have begun to emerge in the market. These designs aim to reduce production costs while improving product stability by optimizing material usage and simplifying assembly steps. However, most existing designs of this type only offer a single-layer structure, and there is still room for improvement in the connection strength between the bottom, sides, and end faces. Utility Model Content

[0004] I. Technical problems to be solved

[0005] The purpose of this utility model is to provide a double-layer foldable paper box with an integrated double-layer folding structure that is stable, durable, and inexpensive.

[0006] II. Technical Solution

[0007] This utility model is achieved through the following technical solution:

[0008] This utility model proposes a double-layer foldable cardboard box, including a rectangular or square bottom sheet, two side sheet groups connected to opposite sides of the bottom sheet, and two end sheet groups connected to the other opposite side of the bottom sheet. The side sheet groups and end sheet groups can be folded to be perpendicular to the bottom sheet to form an open space above the bottom sheet. The side sheet groups include at least an outer side sheet connected to the side edge of the bottom sheet via a crease, an inner side sheet connected to the outer side sheet via a crease, an outer extension end sheet connected to both ends of the outer side sheet via a crease, and an inner extension end sheet connected to both ends of the inner side sheet via a crease. The end sheet groups include at least an outer end sheet connected to the bottom sheet via a crease, and an inner end sheet connected to the outer end sheet via a crease. The outer end sheet and the inner end sheet are sandwiched between the outer end sheet and the inner end sheet.

[0009] Furthermore, the outer side of the inner side panel is connected to a side extension plate by a crease, and the side extension plate is folded perpendicularly to the inner side panel and attached to the bottom panel.

[0010] Furthermore, one side of the end face sheet group also includes an end-extending base sheet connected to the edge of the inner end face sheet via creases, and the other side of the end face sheet group also includes an end-extending cover sheet connected to the edge of the inner end face sheet via creases; the end-extending base sheet is folded perpendicularly to the inner end face sheet and adhered to the bottom sheet, and the end-extending cover sheet is folded perpendicularly to the inner end face sheet and completely covers the end-extending base sheet and the side-extending base sheet.

[0011] Furthermore, the two ends of the end-extending substrate and the side-extending substrate are provided with relatively matching beveled edges.

[0012] Furthermore, the outer end piece has a recessed groove on the edge near the bottom end piece.

[0013] Furthermore, the outer side panel and the inner side panel are glued together.

[0014] Furthermore, it also includes a fitting plate, which is inserted into and fitted into the open space formed by the side panel assembly and the end panel assembly, and the surface of the fitting plate is recessed to form a groove for placing objects; the bottom surface of the fitting plate is glued to the end extension cover plate.

[0015] III. Beneficial Effects

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] In this invention, the side panel assembly has a double-layer structure of outer and inner side panels, and the end panel assembly has a double-layer structure of outer and inner end panels, forming a robust double-layer structure at the upper edge of the bottom panel. The end-extending bottom panel covers the end-extending bottom panel and the side-extending bottom panel, forming a double-layer structure of bottom panel and end-extending bottom panel on the bottom surface. The end-extending bottom panel and the side-extending bottom panel extend from the inner end panel and the inner side panel to the top of the bottom panel, respectively, strengthening the connection strength at the turning point between the bottom panel and the side panel assembly and the end panel assembly above it. Therefore, by optimizing the integrated cutting structure, a fast-folding, stable double-layer gift box can be formed, which is low in cost, structurally stable, and conducive to large-scale production applications. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the unfolded form of this utility model;

[0020] Figure 3 This is a schematic diagram of the folding process of this utility model;

[0021] Figure 4 This is a perspective view of the folded structure of this utility model;

[0022] Figure 5 yes Figure 2 A schematic diagram of the structure of part A;

[0023] 1. Bottom sheet; 2. Side sheet assembly; 21. Outer side sheet; 22. Inner side sheet; 23. Side extension bottom sheet; 24. Outer extension end sheet; 241. Recessed groove; 25. Inner extension end sheet; 3. End sheet assembly; 31. Outer end sheet; 32. Inner end sheet; 33. End extension bottom sheet; 34. End extension cover bottom sheet; 4. Cladding plate. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] A double-layered, foldable cardboard box, please refer to [link / reference]. Figure 1-5 The gift box includes a rectangular or square bottom panel 1, two side panel groups 2, and two end panel groups 3. The two side panel groups 2 are connected to one opposite side of the bottom panel 1, and the two end panel groups 3 are connected to the other opposite side of the bottom panel 1. The side panel groups 2 and the end panel groups 3 can be folded to be perpendicular to the bottom panel 1 to form an open space above the bottom panel 1. A fitting plate 4 is inserted and fitted into the open space. The surface of the fitting plate 4 is recessed to form a groove for placing objects. The shape of the groove is adapted to the electronic cigarette placed inside. A lid or other packaging is placed on top of the gift box to form a complete packaging structure.

[0026] In this invention, the bottom sheet 1, the side sheet group 2, and the end sheet group 3 are cut from a single sheet of paper, plastic, or similar material, and can be folded to form an integrated structure, simplifying the production process and improving the efficiency of folding and forming.

[0027] Specifically, the side panel assembly 2 includes at least an outer side panel 21 connected to the side of the bottom panel 1 via a crease, an inner side panel 22 connected to the outer side panel 21 via a crease, an outer extension end panel 24 connected to both ends of the outer side panel 21 via a crease, and an inner extension end panel 25 connected to both ends of the inner side panel 22 via a crease.

[0028] The end face sheet group 3 includes at least an outer end face sheet 31 connected to the bottom end face sheet 1 by a crease, and an inner end face sheet 32 ​​connected to the outer end face sheet 31 by a crease. The outer end face sheet 31 and the inner end face sheet 32 ​​are respectively sandwiched on both sides of the outer extension end sheet 24 and the inner extension end sheet 25.

[0029] The outer side of the inner side panel 22 is connected to the side extension bottom panel 23 by a crease. The side extension bottom panel 23 is folded perpendicularly to the inner side panel 22 and attached to the bottom panel 1. The side extension bottom panel 23 is provided to improve the structural strength of the connection between the side and bottom of the gift box after folding.

[0030] One side of the end face sheet group 3 also includes an end extension bottom sheet 33 connected to the edge of the inner end face sheet 32 ​​by a crease, and the other side of the end face sheet group 3 also includes an end extension covering bottom sheet 34 connected to the edge of the inner end face sheet 32 ​​by a crease; the end extension bottom sheet 33 is folded perpendicularly to the inner end face sheet 32 ​​and attached to the bottom sheet 1, and the two ends of the end extension bottom sheet 33 and the side extension bottom sheet 23 are provided with relatively matching beveled chamfers. When the end face sheet group 3 and the side sheet group 2 are folded, the end extension bottom sheet 33 and the side extension bottom sheet 23 are both attached to the bottom sheet 1, and the end extension covering bottom sheet 34 is folded perpendicularly to the inner end face sheet 32 ​​and completely covers the end extension bottom sheet 33 and the side extension bottom sheet 23, forming a flat inner wall structure.

[0031] Among them, a relief groove 241 is provided on the edge of the epitaxial end piece 24 near the bottom surface piece 1 to reduce the defect rate of interference between the epitaxial end piece 24 and the end surface piece group 3 and the bottom surface piece 1.

[0032] In addition, the outer side panel 21 and the inner side panel 22 are glued together, and the bottom surface of the interlocking plate 4 is glued together with the end-extending bottom panel 34.

[0033] Figure 3 The folding process of this utility model is shown. The inner side panel 22 is folded 180° to be attached and glued to the outer side panel 21. Then, the outer side panel 21 is folded 90° to be perpendicular to the bottom panel 1. The side extension bottom panel 23 is folded 90° to be attached to the bottom panel 1. The inner extension end panels and outer extension end panels 24 at both ends of the inner side panel 22 and the outer side panel 21 are folded 90° to be above the two ends of the bottom panel 1. The outer end panel 31 is folded upward 90° to be perpendicular to the bottom panel 1. Then, the inner end panel 32 is folded inward 180° so that the outer end panel 31 and the inner end panel 32 sandwich the outer extension end panel 24 and the inner extension end panel 25. The end extension bottom panel 33 is folded 90° and attached to the bottom panel 1. Finally, the other end extension bottom panel 34 is folded over and covered on the end extension bottom panel 33 and the side extension bottom panel 23.

[0034] In this invention, the side panel group 2 has a double-layer structure of outer side panel 21 and inner side panel 22, and the end panel group 3 has a double-layer structure of outer end panel 31 and inner end panel 32, forming a double-layered, robust structure on the upper edge of the bottom panel 1. The end-extending bottom panel 34 covers the end-extending bottom panel 33 and the side-extending bottom panel 23, forming a double-layered structure of the bottom panel 1 and the end-extending bottom panel 34 on the bottom surface. The end-extending bottom panel 33 and the side-extending bottom panel 23 extend from the inner end panel 32 and the inner side panel 22 to the top of the bottom panel 1, strengthening the connection strength at the turning point between the bottom panel 1 and the side panel group 2 and the end panel group 3 above it. Therefore, by optimizing the integrated cutting structure, this invention can quickly fold to form a stable double-layered gift box, with low cost, stable structure, and is conducive to large-scale production applications.

[0035] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. A double-layered foldable cardboard box, comprising a rectangular or square bottom sheet, two side sheet groups connected to opposite sides of the bottom sheet, and two end sheet groups connected to the other opposite side of the bottom sheet, wherein the side sheet groups and end sheet groups can be folded to be perpendicular to the bottom sheet to form an open space above the bottom sheet, characterized in that, The side panel assembly includes at least an outer side panel connected to the side edge of the bottom panel via a crease, an inner side panel connected to the outer side panel via a crease, an outer extension end panel connected to both ends of the outer side panel via a crease, and an inner extension end panel connected to both ends of the inner side panel via a crease; the end panel assembly includes at least an outer end panel connected to the bottom panel via a crease, and an inner end panel connected to the outer end panel via a crease, wherein the outer end panel and the inner end panel enclose the outer extension end panel and the inner extension end panel.

2. The double-layer foldable cardboard box according to claim 1, characterized in that, The inner side panel is connected to the outer side of the bottom panel by a crease. The bottom panel is folded perpendicularly to the inner side panel and attached to the bottom panel.

3. A double-layer foldable cardboard box according to claim 2, characterized in that, One side of the end face sheet group also includes an end extension base sheet connected to the edge of the inner end face sheet by a crease, and the other side of the end face sheet group also includes an end extension cover sheet connected to the edge of the inner end face sheet by a crease; the end extension base sheet is folded perpendicularly to the inner end face sheet and attached to the bottom sheet, and the end extension cover sheet is folded perpendicularly to the inner end face sheet and completely covers the end extension base sheet and the side extension base sheet.

4. A double-layer foldable cardboard box according to claim 3, characterized in that, The two ends of the end-extending substrate and the side-extending substrate are provided with relatively matching beveled edges.

5. A double-layer foldable cardboard box according to claim 1, characterized in that, The outer end piece has a relief groove on the edge near the bottom piece.

6. A double-layer foldable cardboard box according to any one of claims 1-5, characterized in that, The outer side panel and the inner side panel are glued together.

7. A double-layer foldable cardboard box according to claim 6, characterized in that, It also includes a fitting plate, which is inserted into and fitted into the open space formed by the side panel assembly and the end panel assembly. The surface of the fitting plate is recessed to form a groove for placing objects. The bottom surface of the fitting plate is glued to the end extension cover plate.

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