Folding type packaging box

By setting fixing posts and snap-fit ​​mechanisms between the connecting plates of the folding packaging box, the problem of easy deformation of the side walls is solved, achieving higher stability and resistance to deformation.

CN224131606UActive Publication Date: 2026-04-17ANHUI GUANGYIN COLOR PRINTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI GUANGYIN COLOR PRINTING CO LTD
Filing Date
2025-06-03
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The side walls of existing folding packaging boxes are prone to concave inward or convex outward when subjected to pressure, affecting their resistance to deformation.

Method used

By setting fixed posts and connecting blocks between the connecting plates, and using the fixed posts to connect through the fixed holes, a rectangular structure is formed, which enhances the connection stability; an L-shaped cardboard and a snap-fit ​​mechanism are set on the connecting block to prevent the fixed posts from detaching; and a peel-off part is set on the connecting cardboard to facilitate folding.

Benefits of technology

It improves the stability of the packaging box, prevents the side walls from concave or convex under external force, and enhances its resistance to deformation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of packaging boxes, in particular to a folding type packaging box which comprises a bottom paper board, side paper boards are connected to the periphery of the bottom paper board, a top paper board is connected to one of the side paper boards, a top sealing edge is connected to the top paper board, a plurality of connecting boards are fixedly connected to the four side paper boards, and the connecting boards are fixedly connected to the bottom paper board. The four connecting plates on each layer are connected through connecting mechanisms. According to the utility model, the condition that the side paperboards are concaved inwards or expanded outwards under the action of external force is prevented, so that the stability of the box body is improved.
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Description

Technical Field

[0001] This utility model relates to the field of packaging box technology, and in particular to a folding packaging box. Background Technology

[0002] Folding boxes are a common cardboard box design that uses folded and connected cardboard (such as cardboard, corrugated paper, etc.) to form a multi-faceted packaging container. Its core feature is the use of folds (folded sections) to open, close, or fix the box. It typically requires no glue or only minimal adhesive to form. However, because folding boxes use folding for connection, the support between the side walls is relatively weak. Under pressure, the side walls are prone to inward or outward expansion, affecting the box's resistance to deformation. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies where the side walls are prone to inward or outward expansion under pressure, affecting the packaging box's resistance to deformation, and to propose a folding packaging box.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] Design a folding packaging box, including a bottom cardboard, side cardboards connected to all four sides of the bottom cardboard, a top cardboard connected to one of the side cardboards, a top sealing edge connected to the top cardboard, and multiple connecting plates fixedly connected to each of the four side cardboards. The four connecting plates of each layer are connected to each other by a connecting mechanism.

[0006] Preferably, both sides of the top sealing edge are provided with inclined surfaces.

[0007] Preferably, the connecting mechanism includes fixing holes, and fixing holes are provided at both ends of the connecting plate. A connecting block abuts against two adjacent connecting plates, and two fixing posts are fixedly connected to the connecting block. The two fixing posts pass through the two fixing holes respectively.

[0008] Preferably, the top cardboard, top sealing edge, and side cardboard are all corrugated cardboard.

[0009] Preferably, an L-shaped cardboard abuts against the connecting block, one end of the L-shaped cardboard is connected to the connecting plate, and the other end of the L-shaped cardboard is snapped into the connecting block by a snap-fit ​​mechanism.

[0010] Preferably, the L-shaped cardboard completely covers the connecting block.

[0011] Preferably, the snap-fit ​​mechanism includes a fixing groove, and two fixing grooves are formed on the connecting block. Insertion blocks abut against the inner walls of the two fixing grooves, and connecting cardboard is fixedly connected to the two insertion blocks. The connecting cardboard is connected to the L-shaped cardboard.

[0012] Preferably, a slitting part is fixedly connected to the connecting cardboard.

[0013] The folding packaging box proposed in this utility model has the following advantages: by using fixed posts to connect and fix each pair of adjacent connecting plates, the four connecting plates of each layer are enclosed into a rectangular structure, which prevents the side paperboards from concave or expand outward under external force, thereby improving the stability of the box. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a folding packaging box proposed in this utility model;

[0015] Figure 2 This is a perspective view of a folding packaging box proposed in this utility model;

[0016] Figure 3 A perspective view of the fixing column part of a folding packaging box proposed in this utility model;

[0017] Figure 4 A perspective view of the connecting plate portion of a folding packaging box according to this utility model;

[0018] Figure 5 This is a perspective view of the connecting block portion of a folding packaging box proposed in this utility model.

[0019] In the diagram: 1. Top cardboard; 2. Top edge seal; 3. Side cardboard; 4. Connecting plate; 5. Fixing post; 6. Bottom cardboard; 7. L-shaped cardboard; 8. Connecting block; 9. Fixing groove; 10. Inserting clip; 11. Connecting cardboard; 12. Opening part; 13. Fixing hole. Detailed Implementation

[0020] 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.

[0021] Example 1: Refer to Figure 1-4 A folding packaging box includes a bottom cardboard 6, with side cardboards 3 connected to all four sides of the bottom cardboard 6. Creases are provided at the connection between the bottom cardboard 6 and the side cardboards 3. A top cardboard 1 is connected to one of the side cardboards 3. Creases are provided at the connection between the top cardboard 1 and the side cardboard 3. A top sealing edge 2 is connected to the top cardboard 1. Both sides of the top sealing edge 2 are provided with inclined surfaces so that the top sealing edge 2 can be inserted and fixed. Multiple connecting plates 4 are fixedly connected to each of the four side cardboards 3. The four connecting plates 4 of each layer are connected to each other by a connecting mechanism.

[0022] The connecting mechanism includes fixing holes 13. Fixing holes 13 are provided at both ends of the connecting plate 4. Connecting blocks 8 abut against two adjacent connecting plates 4. Two fixing posts 5 are fixedly connected to the connecting blocks 8. The two fixing posts 5 pass through the two fixing holes 13 respectively. By using the fixing posts 5 to connect and fix each pair of adjacent connecting plates 4, the four connecting plates 4 of each layer are enclosed into a rectangular structure, which prevents the side paperboard 3 from being concave or expanded outward when subjected to external force, thereby improving the stability of the box.

[0023] The top cardboard 1, top edge seal 2, and side cardboard 3 are all corrugated cardboard.

[0024] Example 2: In Example 1, during the movement and transportation of the packaging box, the fixing post 5 may easily detach from the fixing hole 13. (Refer to...) Figure 1-5 As another preferred embodiment of this utility model, based on embodiment 1, an L-shaped cardboard 7 abuts against the connecting block 8. One end of the L-shaped cardboard 7 is connected to the connecting plate 4, and the other end of the L-shaped cardboard 7 is snapped into the connecting block 8 through a snap-fit ​​mechanism. The L-shaped cardboard 7 completely covers the connecting block 8. By using the L-shaped cardboard 7 to abut against the connecting block 8, the connecting block 8 is prevented from moving longitudinally, thereby preventing the fixing post 5 from dislodging from the fixing hole 13.

[0025] The snap-fit ​​mechanism includes two fixing slots 9 on the connecting block 8. Insertion blocks 10 abut against the inner walls of the two fixing slots 9. Connecting cardboard 11 is fixedly connected to the two insertion blocks 10. The connecting cardboard 11 is connected to the L-shaped cardboard 7. By inserting the insertion blocks 10 into the fixing slots 9, the L-shaped cardboard 7 will be limited, so that the L-shaped cardboard 7 always abuts against the connecting block 8, thus limiting the connection block 8.

[0026] Example 3: Reference Figure 1-5 As another preferred embodiment of this utility model, based on embodiment 2, a peeling part 12 is fixedly connected to the connecting cardboard 11. The peeling part 12 facilitates gripping. Pulling the peeling part 12 causes the crease between the connecting cardboard 11 and the L-shaped cardboard 7 to rotate, disengaging the inserting block 10 from the fixing groove 9. Then, rotating the L-shaped cardboard 7 causes the crease at the connection between the L-shaped cardboard 7 and the connecting plate 4 to rotate, disengaging the L-shaped cardboard 7 from the limiting position of the connecting block 8, so that the connecting block 8 can be pulled to disengage the fixing post 5 from the fixing hole 13, releasing the fixation between the connecting plates 4, and folding the packaging box.

[0027] 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 folding box package comprising a bottom paperboard (6), characterized in that, The bottom cardboard (6) is connected to the four sides of the side cardboard (3), and the top cardboard (1) is connected to one of the side cardboard (3). The top sealing edge (2) is connected to the top cardboard (1). Multiple connecting plates (4) are fixedly connected to the four side cardboards (3). The four connecting plates (4) of each layer are connected to each other by a connecting mechanism.

2. A folding packaging box according to claim 1, characterized in that, Both sides of the top sealing edge (2) are provided with inclined surfaces.

3. A folding packaging box according to claim 1, characterized in that, The connecting mechanism includes a fixing hole (13). Fixing holes (13) are provided at both ends of the connecting plate (4). A connecting block (8) abuts against two adjacent connecting plates (4). Two fixing posts (5) are fixedly connected to the connecting block (8). The two fixing posts (5) pass through the two fixing holes (13) respectively.

4. A folding packaging box according to claim 3, characterized in that, The top cardboard (1), top sealing edge (2) and side cardboard (3) are all corrugated cardboard.

5. A folding packaging box according to claim 4, characterized in that, An L-shaped cardboard (7) abuts against the connecting block (8). One end of the L-shaped cardboard (7) is connected to the connecting plate (4), and the other end of the L-shaped cardboard (7) is snapped into the connecting block (8) through a snap-fit ​​mechanism.

6. A folding packaging box according to claim 5, characterized in that, The L-shaped cardboard (7) completely covers the connecting block (8).

7. A folding packaging box according to claim 6, characterized in that, The snap-fit ​​mechanism includes a fixing groove (9), and two fixing grooves (9) are provided on the connecting block (8). Insertion blocks (10) are abutted on the inner walls of the two fixing grooves (9). Connecting cardboard (11) is fixedly connected to the two insertion blocks (10). The connecting cardboard (11) is connected to the L-shaped cardboard (7).

8. A folding packaging box according to claim 7, characterized in that, A slit (12) is fixedly connected to the connecting cardboard (11).