Foldable corrugated carton easy to disassemble

By setting multiple sets of folding lock groups and locking systems on corrugated cardboard boxes, the problem of the fixed shape of traditional corrugated cardboard boxes is solved, enabling flexible adjustment and stable folding of the box body, thereby improving packaging efficiency and material utilization.

CN223935216UActive Publication Date: 2026-02-24DONGGUAN HE YU PACKING MATERIAL CO LTD
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Patent Information

Application Number
CN202520572745.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-29
Publication Date
2026-02-24
Estimated Expiration
2035-03-29

AI Technical Summary

Technical Problem

Traditional corrugated cardboard boxes have a fixed structure, which makes it impossible to flexibly adjust the internal space and external shape, resulting in low packaging efficiency and material waste, especially in scenarios involving non-standard sized goods and mixed shipments of multiple specifications.

Method used

Design an easily detachable and foldable corrugated cardboard box. The box body has at least two sets of folding lock groups. By switching the bending state of the lock groups, users can choose the bending point of the box wall. The combination of locks and locking beads provides multiple angle locking positions to ensure stability after folding.

Benefits of technology

It achieves flexible folding and stability of corrugated cardboard boxes, adapts to different bending angle requirements, improves packaging flexibility and reusability, and avoids accidental loosening and material waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an easy-to-disassemble and foldable corrugated carton which comprises a carton body part and a cover body part connected with the upper end and the lower end of the carton body part. At least two groups of folding lock catches are arranged on the box body part, and any group of folding lock catches can form a bending point of the box body part. By switching the bending state of the lock catch set, a user can autonomously select the bending point position of the box wall, and the problems that a traditional corrugated box is fixed in shape, complex to disassemble and assemble, low in repeated utilization rate and the like are solved. And the lock catch rotates relatively through the first locking plate and the second locking plate, so that the requirements of different bending angles are met. The clamping balls are meshed with the clamping grooves to provide multi-gear angle locking, the stability of the box wall after folding is ensured, and accidental loosening in the transportation process is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of carton manufacturing, especially to an easily detachable foldable corrugated box. BACKGROUND

[0002] As the core packaging material of modern logistics transportation, corrugated boxes are widely used in e-commerce, food, industrial products and other fields due to their light weight, low cost, easy processing and other characteristics. However, with the upgrading of supply chain diversification and green demand, the structural limitations of traditional corrugated boxes are gradually emerging.

[0003] Existing foldable cartons attempt to achieve folding function by simplifying the fold line design, but often lack effective locking mechanisms, leading to deformation or accidental loosening of the box body when bearing weight. Some solutions use additional metal fasteners to enhance stability, but this increases weight, cost and disassembly complexity.

[0004] Prior art such as publication number CN113636184A uses a soft sheet that can be freely bent to connect two adjacent paperboards, so that the soft sheet is located at the corner of the corrugated box, avoiding the folding of the paperboard, thereby effectively preventing the corrugated box from being damaged after being folded multiple times.

[0005] However, current cartons rely on gluing, nailing or pre-pressed fold line processes for molding, and once the box is assembled, its internal space and external shape are fixed. In the face of non-standard size goods or scenarios that require dynamic adjustment of loading capacity (such as multi-specification mixed delivery, irregular item packaging), users can only adapt to the demand by stacking multiple cartons or filling cushioning materials, resulting in low packaging efficiency and significant material waste. UTILITY MODEL CONTENT

[0006] In summary, the utility model provides an easily detachable foldable corrugated box.

[0007] The technical solution of the utility model is as follows:

[0008] An easily detachable foldable corrugated box includes a box body component and a cover body component connected to the upper and lower ends of the box body component,

[0009] characterized in that,

[0010] The box body component is provided with at least two groups of folding locks, any one of which can form a bending point of the box body component.

[0011] Further, the two groups of folding locks are a first folding lock group and a second folding lock group,

[0012] The first folding lock group is in a bent state and located at the four bending points of the box wall, and the second folding lock group is in a flat state.

[0013] Further, the first folding lock group comprises a first groove, both ends of the first groove are connected with a first soft sheet,

[0014] The second folding lock group is in a flat state, and the second folding lock group comprises a second groove, both ends of the second groove are connected with a second soft sheet.

[0015] Further, the first folding lock group and the second folding lock group are both provided with a lock, the lock is composed of a first lock sheet and a second lock sheet, wherein the first lock sheet and the second lock sheet are connected with a rotating shaft.

[0016] Further, one side of the rotating shaft is provided with a clamping bead, and one end of the second lock sheet is provided with a plurality of clamping grooves matched with the clamping bead.

[0017] Further, the box wall comprises a first folding wall, a second folding wall, a third folding wall and a fourth folding wall.

[0018] Further, the box body component comprises a first cover plate, a second cover plate, a third cover plate and a fourth cover plate,

[0019] The first cover plate, the second cover plate, the third cover plate and the fourth cover plate correspond to the first folding wall, the second folding wall, the third folding wall and the fourth folding wall respectively, and the first cover plate and the second cover plate and the third cover plate and the fourth cover plate are respectively provided with a folding groove.

[0020] The easy-to-disassemble foldable corrugated box has the following beneficial effects:

[0021] The easy-to-disassemble foldable corrugated box provided in the embodiment is innovatively designed by connecting the folding lock system with the corrugated paper, at least two folding lock groups are arranged on the box body component, the folding point position of the box wall can be selected by the user by switching the folding state of the lock group, and the problems of fixed shape, complex disassembly and reassembly, and low reuse rate of the traditional corrugated box are solved.

[0022] The lock is adapted to different folding angle requirements by relative rotation of the first lock sheet and the second lock sheet. The clamping bead and the clamping groove are engaged to provide multi-gear angle locking (such as 90°, 180°), so as to ensure the stability of the folded box wall and avoid accidental loosening during transportation. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structure schematic view of the easy-to-disassemble foldable corrugated box of the utility model;

[0024] Figure 2 It is a structure schematic view of the box body component of the utility model;

[0025] Figure 3 is a bending state diagram of the folding lock of the utility model;

[0026] Figure 4 is a flat state diagram of the folding lock of the utility model;

[0027] Figure 5 is a partial sectional view of the lock.

[0028] The reference signs are as follows: box body part 100, box wall 11, first folding wall 111, second folding wall 112, third folding wall 113, fourth folding wall 114, first folding lock group 12, first groove 121, first soft sheet 122, second folding lock group 13, second groove 13, second soft sheet 132, lock 14, first lock sheet 141, second lock sheet 142, rotating shaft 143, clamping bead 144, clamping groove 145, cover body part 200, first cover plate 211, second cover plate 212, third cover plate 213, fourth cover plate 214, folding groove 215. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model.

[0030] In the embodiment, referring to Figures 1 to 2 , an easily detachable foldable corrugated box is provided, which comprises a box body part 100 and cover body parts 200 connected to the upper and lower ends of the box body part 100. One of the cover body parts 200 is folded to form the bottom of the corrugated box, and the other cover body part 200 is folded to form the top of the corrugated box.

[0031] Traditional corrugated boxes are mostly formed by gluing, nailing or pre-pressing creases. Once the box is assembled, its shape is fixed, and it cannot adjust the internal space or external shape according to actual needs. Referring to Figure 2 , at least two groups of folding locks are arranged on the box body part 100, and any one group of folding locks can form a bending point of the box body part 100.

[0032] Specifically, referring again to Figure 2 , the box body part 100 comprises a box wall 11, and two groups of folding locks are arranged on the box wall 11, which are a first folding lock group 12 and a second folding lock group 13. The box wall 11 comprises a first folding wall 111, a second folding wall 112, a third folding wall 113 and a fourth folding wall 114.

[0033] With Figure 2As shown in the state, the first folding lock catch group 12 is in a bent state and is located at four bending points of the box wall 11, and the second folding lock catch group 13 is in a flat state. Among them, the first folding wall 111 is in the same horizontal line with the second folding wall 112, the second folding wall 112 is bent at 90° with the third folding wall 113, and the third folding wall 113 is in the same horizontal line with the fourth folding wall 114.

[0034] The cover part 200 includes a first cover plate 211, a second cover plate 212, a third cover plate 213, and a fourth cover plate 214. Among them, the first cover plate 211, the second cover plate 212, the third cover plate 213, and the fourth cover plate 214 correspond to the first folding wall 111, the second folding wall 112, the third folding wall 113, and the fourth folding wall 114 respectively, and the first cover plate 211 and the second cover plate 212 and the third cover plate 213 and the fourth cover plate 214 are respectively provided with a folding groove 215.

[0035] If it is necessary to adjust the internal space or external shape of the box wall 11, the first folding wall 111 is bent in the Fa direction, the second folding wall 112 is bent in the Fb direction, until the first folding wall 111 and the second folding wall 112 are bent to 90°; the third folding wall 113 is bent in the Fc direction, and the fourth folding wall 114 is bent in the Fd direction, until the third folding wall 113 and the fourth folding wall 114 are bent to 90°. Among them, in the process of bending, the second folding wall 112 and the third folding wall 113 are bent to form a straight line.

[0036] The traditional carton relies on fixed forming process (such as gluing, nailing), which causes the internal space and external shape to be unchangeable. The present scheme provides multiple folding lock catches (such as the first folding lock catch group 12 and the second folding lock catch group 13) on the box wall, which gives the box multiple bending point choices. For example Figure 2 As shown, by switching the bending state of the folding lock catch, the user can adjust the angle of the box wall (such as 90° bending or horizontal extension) as needed, flexibly change the volume of the carton to adapt to different sizes of goods, or adjust the external shape to adapt to the space limit of transportation. This feature is especially suitable for non-standard product storage and multi-specification mixed delivery scenarios.

[0037] Further, the first folding lock catch group 12 and the second folding lock catch group 13 have the same structure. Referring to Figures 3 to 4 As shown, the first folding lock catch group 12 is in a bent state, and the first folding lock catch group 12 includes a first recess 121, and the two ends of the first recess 121 are connected with a first soft sheet 122. The second folding lock catch group 13 is in a flat state, and the second folding catch group 13 includes a second recess 131, and the two ends of the second recess 131 are connected with a second soft sheet 132.

[0038] In this embodiment, referring to Figure 5As shown, a latch 14 is provided between the first folding latch group 12 and the second folding latch group 13. The latch 14 is composed of a first locking plate 141 and a second locking plate 142. A pivot 143 connects the first locking plate 141 and the second locking plate 142.

[0039] Furthermore, a retaining bead 144 is provided on one side of the rotating shaft 143, and a plurality of retaining slots 145 are provided at one end of the second locking plate 142 to cooperate with the retaining bead 144.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A detachable and foldable corrugated cardboard box, comprising a box body component (100) and a cover component (200) connected to the upper and lower ends of the box body component (100). Its features are, The housing component (100) is provided with at least two sets of folding latches, any one of which can constitute the bending point of the housing component (100).

2. The easily detachable and foldable corrugated cardboard box according to claim 1, characterized in that, The two sets of folding latches are the first folding latch group (12) and the second folding latch group (13). If the first folding latch group (12) is in a bent state and is located at the four bending points of the box wall (11), then the second folding latch group (13) is in a straight state.

3. The easily detachable and foldable corrugated cardboard box according to claim 2, characterized in that, The first folding latch assembly (12) includes a first groove (121), and the two ends of the first groove (121) are connected to a first flexible piece (122). The second folding latch group (13) is in a flat state. The second folding latch group (13) includes a second groove (131), and the two ends of the second groove (131) are connected to a second soft piece (132).

4. The easily detachable and foldable corrugated cardboard box according to claim 2, characterized in that, A latch (14) is provided between the first folding latch group (12) and the second folding latch group (13). The latch (14) is composed of a first locking piece (141) and a second locking piece (142), wherein a rotating shaft (143) is connected between the first locking piece (141) and the second locking piece (142).

5. The easily detachable and foldable corrugated cardboard box according to claim 4, characterized in that, A locking bead (144) is provided on one side of the rotating shaft (143), and a plurality of locking slots (145) are provided at one end of the second locking piece (142) to cooperate with the locking bead (144).

6. The easily detachable and foldable corrugated cardboard box according to claim 2, characterized in that, The box wall (11) includes a first folded wall (111), a second folded wall (112), a third folded wall (113), and a fourth folded wall (114).

7. The easily detachable and foldable corrugated cardboard box according to claim 6, characterized in that, The cover component (200) includes a first cover plate (211), a second cover plate (212), a third cover plate (213), and a fourth cover plate (214). The first cover plate (211), the second cover plate (212), the third cover plate (213) and the fourth cover plate (214) correspond to the first folded wall (111), the second folded wall (112), the third folded wall (113) and the fourth folded wall (114) respectively, and folding grooves (215) are respectively provided between the first cover plate (211) and the second cover plate (212) and between the third cover plate (213) and the fourth cover plate (214).

Citation Information

Patent Citations

  • Folding-resistant self-locking corrugated carton

    CN113636184A