WO2024260002A1 - Foldable packaging box, foldable packaging box assembly, and packaging structural member - Google Patents

Abstract

A foldable packaging box, a foldable packaging box assembly, and a packaging structural member. The foldable packaging box (100, 100', 100A, 100B, 100C, 100D, 100E) comprises a foldable outer box body (10A, 10B, 10C, 10D, 10E) and a foldable inner packaging structural member (9). The foldable inner packaging structural member (9) is formed by tessellating a plurality of hollow tessellating units (2), the upper end portions (20) of which are open, wherein the tessellating units (2) comprise a plurality of walls (23), at least one wall (23) among the plurality of walls (23) being provided with a weak portion arranged along the height direction, and the walls (23) being formed from a tearable material. The foldable inner packaging structural member (9) is combined with the foldable outer box body (10A, 10B, 10C, 10D, 10E), such that the foldable inner packaging structural member (9) and the foldable outer box body (10A, 10B, 10C, 10D, 10E) form an integrated structure. Before the foldable packaging box is delivered for use, the foldable inner packaging structural member and the foldable outer box body are folded to be in a folded, compressed state; after the foldable packaging box is delivered for use, the foldable inner packaging structural member and the foldable outer box body are unfolded to be in a three-dimensional state in order to be used as a packaging box into which articles can be placed.

Description

Foldable packaging box, foldable packaging box components and packaging structural parts Technical Field

The present disclosure generally relates to the field of packaging technology, and more particularly, to a foldable packaging box, a foldable packaging box assembly, and a packaging structure.

Background Art

At present, with the rapid development of e-commerce and offline retail business, both consumers and brands have put forward more requirements for item protection and sustainable development. Generally speaking, the packaging of items requires good support and cushioning protection for the items, and provides consumers with a good opening experience. In offline retail scenarios, single or multiple items often need to be placed in a fixed position in the gift box. In e-commerce packaging scenarios, when one or more items need to be transported in a packaging box, in order to ensure that the items are not damaged during transportation, it is expected that the packaging of each item is independent of each other to avoid mutual influence between the items and the packaging box or between different items.

Traditional packaging forms often use pre-formed packaging structures (such as paper inner cards or plastic inner cards), and then put the formed packaging structures into the packaging box body, so as to use the packaging structures to achieve fixed placement of items in the packaging box body. In traditional packaging forms, the packaging structure and the packaging box body are two separate parts, and both need to be operated and assembled separately when used. Considering the large demand for e-commerce and gift box businesses, lower manufacturing costs of packaging structures and packaging boxes, more environmentally friendly materials, and more flexible structures that adapt to different sizes of items are also desired. Therefore, there is currently a need for continuous improvement in the packaging structures and packaging boxes of items.

Summary of the invention

The purpose of the present disclosure is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

According to one aspect of the present disclosure, there is provided a foldable packaging box, the foldable packaging box comprising:

A foldable outer box; and

A foldable inner packaging structure, wherein the foldable inner packaging structure is formed by paving a plurality of hollow paved units, wherein the upper end of the paved unit is open and comprises a plurality of walls, wherein at least one of the plurality of walls is provided with a weak portion arranged in a height direction, and the wall is formed of a tearable material;

Wherein, the foldable inner packaging structure is combined with the foldable outer box body so that the foldable inner packaging structure and the foldable outer box body form an integrated structure;

Wherein, before the foldable packaging box is delivered for use, the foldable inner packaging structure and the foldable outer box body are folded into a folded and compressed state; after the foldable packaging box is delivered for use, the foldable inner packaging structure and the foldable outer box body are unfolded into a three-dimensional state to be used as a packaging box for placing articles.

According to some exemplary embodiments of the present disclosure, at least a portion of the foldable outer box is fixedly coupled to the foldable inner box. Install structural parts.

According to some exemplary embodiments of the present disclosure, when the packaging box is in a three-dimensional state, the height of the foldable outer box body is equal to or greater than the height of the foldable inner packaging structure.

According to some exemplary embodiments of the present disclosure, the weak portion is configured as a cutout on the wall, and the cutout is arranged in one or more portions along the height direction of the wall; wherein the size of the one or more cutouts gradually decreases from the upper end of the densely laid unit downward along the height direction, and is arranged in a gradient; wherein the one or more cutouts are arranged along the height direction of the wall, and the one or more cutouts are arranged at a middle position along the width direction of the wall; wherein the one or more cutouts are arranged at a middle position along the width direction of the wall. The cutouts may be arranged at equal intervals or at unequal intervals along the height direction of the wall.

According to some exemplary embodiments of the present disclosure, the densely-paved units are hexagonal honeycomb units, the walls of the honeycomb units are formed of paper, and the cutouts are configured as holes formed on the walls.

According to some exemplary embodiments of the present disclosure, the cell side length of the honeycomb unit is set between 5mm-12mm, and the gradient diameter range of the hole is within the range of 1mm-5mm; wherein, when the cell side length of the honeycomb unit is 5mm, the gradient diameter range of the hole is set to 1mm-2.5mm; wherein, when the cell side length of the honeycomb unit is 12mm, the gradient diameter range of the hole is set to 2mm-5mm.

According to some exemplary embodiments of the present disclosure, the spacing between the edges of adjacent holes is set to 10%-200% of the maximum pore size, the maximum pore size is set to be larger than 40% of the cell side length of the honeycomb unit, and the minimum pore size is set to be smaller than 50% of the cell side length of the honeycomb unit.

According to some exemplary embodiments of the present disclosure, the grammage range of the paper is set between 110 g/m ² and 170 g/m ² .

According to some exemplary embodiments of the present disclosure, the hole is at least one of a circular hole, an elliptical hole, a rectangular hole, and a square hole.

According to some exemplary embodiments of the present disclosure, each of the plurality of walls is provided with the weak portion; and/or a lower end portion of the packaging structure is open.

According to some exemplary embodiments of the present disclosure, the closely-laid units are hexagonal honeycomb units, the walls of which are formed of paper, the cut-out portions are configured as slits, and the length range of the slits is set between 1% and 90% of the height of the honeycomb units; and/or, the weak portions are configured as tear lines extending along the height direction; and/or, the packaging structure includes a bottom support member detachably attached to the bottom.

According to an exemplary embodiment of the present disclosure, the foldable outer box body comprises at least a front panel, a left panel, a rear panel and a right panel connected in sequence; wherein at least one of the front panel and the rear panel is fixedly coupled to the foldable inner packaging structure.

According to a first exemplary embodiment of the present disclosure, the foldable outer box body further includes: the front panel, the back panel, the upper panel, the front outer panel, the lower panel, the left outer panel, the right outer panel, the left panel, and the right panel; wherein the front panel and the back panel are combined to the foldable inner packaging structure; wherein the front outer panel is connected to the upper panel, the upper panel is connected to the back panel, the left panel and the right panel are respectively connected between the front panel and the back panel, the lower panel is connected between the front panel and the back panel, and the left outer panel and the right outer panel are respectively connected to the lower panel; wherein the left outer panel, the right outer panel, the left panel, the right panel and the lower panel are all formed with a central folding line.

Preferably, the central folding line of the left outer panel, the right outer panel and the lower panel is the same folding line.

Preferably, in a three-dimensional state, the left outer panel is bonded to the left side panel by bonding, and the right outer panel is bonded to the right side panel by bonding.

According to a second exemplary embodiment of the present disclosure, the foldable outer box body further includes: the front panel, the back panel, the upper panel, the front wing panel, the lower panel, the left outer panel, the right outer panel, the left panel, the right panel, the left wing panel, and the right wing panel; wherein, the front panel and the back panel are combined with the foldable inner packaging structure; wherein, the upper panel is connected to the back panel, the left panel and the right panel are respectively connected between the front panel and the back panel, and the lower panel is connected between the front panel and the back panel, the left outer panel and the right outer panel are respectively connected to the lower panel, and the front wing panel, the left wing panel and the right wing panel are respectively connected to the upper panel; wherein, the left outer panel, the right outer panel, the left panel, the right panel and the lower panel are all formed with a central folding line.

Preferably, in a three-dimensional state, the front wing panel, the left wing panel and the right wing panel are respectively inserted into the inner sides of the front panel, the left panel and the right panel.

Preferably, the central folding line of the left outer panel, the right outer panel and the lower panel is the same folding line.

Preferably, in a three-dimensional state, the left outer panel is bonded to the left side panel by bonding, and the right outer panel is bonded to the right side panel by bonding.

According to a third exemplary embodiment of the present disclosure, the foldable outer box body further includes: the front panel, the rear panel, the left side panel, the right side panel, the front upper panel, the rear upper panel, the left upper panel, the right upper panel, the front lower panel, the rear lower panel, the left lower panel, and the right lower panel; wherein, the front panel and the rear panel are combined with the foldable inner packaging structure, the left side panel and the right side panel are respectively connected between the front panel and the rear panel, the front upper panel and the front lower panel are respectively connected to the front panel, the rear upper panel and the rear lower panel are respectively connected to the rear panel, the left upper panel and the left lower panel are respectively connected to the left side panel, and the right upper panel and the right lower panel are respectively connected to the right side panel; wherein, the left upper panel, the left lower panel and the left side panel form the same left center folding line, and the right upper panel, the right lower panel and the right side panel form the same right center folding line.

Preferably, in a three-dimensional state, the front upper panel and the rear upper panel together constitute a first upper panel, the left upper panel and the right upper panel together constitute a second upper panel, and one of the first upper panel and the second upper panel covers the other; the front lower panel and the rear lower panel together constitute a first lower panel, the left lower panel and the right lower panel together constitute a second lower panel, and one of the first lower panel and the second lower panel covers the other.

According to a fourth exemplary embodiment of the present disclosure, the foldable outer box body further includes: the front panel, the rear panel, the left side panel, the right side panel, the front upper panel, the rear upper panel, the left upper panel, the right upper panel, the front lower panel, the rear lower panel, the left lower panel, and the right lower panel; wherein, the front panel and the rear panel are combined with the foldable inner packaging structure, the left side panel and the right side panel are respectively connected between the front panel and the rear panel, the front upper panel and the front lower panel are respectively connected to the front panel, the rear upper panel and the rear lower panel are respectively connected to the rear panel, the left upper panel and the left lower panel are respectively connected to the left side panel, and the right upper panel and the right lower panel are respectively connected to the right side panel; wherein, the left upper panel, the left lower panel and the left side panel form a same left center folding line, and the right upper panel, the right lower panel and the right side panel form a same right center folding line.

Preferably, in a three-dimensional state, the front upper panel constitutes a first upper panel, the rear upper panel constitutes a second upper panel, and the left upper panel constitutes a second upper panel. The upper panel and the upper right panel together constitute a third upper panel, the first upper panel and the second upper panel are covered on the third upper panel, and one of the first upper panel and the second upper panel is covered on the other; the front lower panel constitutes the first lower panel, the rear lower panel constitutes the second lower panel, the lower left panel and the lower right panel together constitute a third lower panel, the first lower panel and the second lower panel are covered on the third upper panel, and one of the first lower panel and the second lower panel is covered on the other.

According to a fifth exemplary embodiment of the present disclosure, the foldable outer box body further includes: a first outer box body part and a second outer box body part separated from each other; the first outer box body part includes: the front panel, the back panel, the left side panel, the right side panel, the left outer panel, the right outer panel, and the bottom panel; wherein, the front panel and the back panel are combined with the foldable inner packaging structure, the left side panel and the right side panel are respectively connected between the front panel and the back panel, the bottom panel is connected between the front panel and the back panel, and the left outer panel and the right outer panel are respectively connected to the bottom panel; wherein, the left side panel and the right side panel are respectively formed with a central folding line, and the left outer panel, the right outer panel and the bottom panel are respectively formed with a central folding line.

Preferably, the central folding line of the left outer panel, the right outer panel and the lower panel is the same folding line.

Preferably, in a three-dimensional state, the left outer panel is bonded to the left side panel by bonding, and the right outer panel is bonded to the right side panel by bonding.

Further, the second outer box body part includes: an upper cover plate, a front cover plate, a rear cover plate, a left cover plate, and a right cover plate; wherein the front cover plate, the rear cover plate, the left cover plate, and the right cover plate are respectively connected to the upper cover plate, and the front cover plate, the left cover plate, the rear cover plate, and the right cover plate are connected together in sequence; wherein the second outer box body part is constructed to be able to be detachably fitted onto the first outer box body part in a three-dimensional state.

According to another aspect of the present disclosure, a foldable packaging box assembly is provided, comprising: at least two foldable packaging boxes as described in any of the aforementioned embodiments; wherein, after the at least two foldable packaging boxes are delivered for use, the at least two foldable packaging boxes are respectively unfolded into a three-dimensional state and cooperate with each other to be used as packaging boxes for placing items.

According to some exemplary embodiments of the present disclosure, one of the at least two foldable packaging boxes is a foldable packaging box in which, when the foldable packaging box is in a three-dimensional state, the height of the foldable outer box body is equal to or greater than the height of the foldable inner packaging structure.

According to some exemplary embodiments of the present disclosure, in the foldable packaging box, the foldable inner packaging structure is arranged so that the upper ends of the multiple closely laid units face the vertical direction, so that the foldable packaging box is suitable for placing items on the upper ends of one or more of the multiple closely laid units when in use.

According to some exemplary embodiments of the present disclosure, in the foldable packaging box, the foldable inner packaging structure is arranged so that the upper ends of the multiple closely laid units face the horizontal direction, so that the foldable packaging box is suitable for placing items on the walls of one or more of the multiple closely laid units when in use.

According to another aspect of the present disclosure, a packaging structure is provided, which is formed by closely paving a plurality of hollow closely paved units, wherein the upper end of the closely paved unit is open and comprises a plurality of walls, wherein at least one of the plurality of walls is provided with a weak portion arranged along a height direction, and the wall is formed of a tearable material.

According to some exemplary embodiments of the present disclosure, the weakened portion is configured as a cutout portion on the wall.

According to some exemplary embodiments of the present disclosure, the cutout portion is arranged in one or more portions along a height direction of the wall.

According to some exemplary embodiments of the present disclosure, the size of the one or more cutouts gradually decreases from the upper end of the densely laid unit downward in the height direction, forming a gradient arrangement.

According to some exemplary embodiments of the present disclosure, the one or more cutouts are arranged along the height direction of the wall. The cutouts may be arranged at equal intervals or at unequal intervals along the height direction of the wall.

According to some exemplary embodiments of the present disclosure, the one or more cutouts are disposed at a middle position along a width direction of the wall.

According to some exemplary embodiments of the present disclosure, the closely-paved units are hexagonal honeycomb units.

According to some exemplary embodiments of the present disclosure, the walls of the honeycomb cells are formed of paper.

According to some exemplary embodiments of the present disclosure, the cutout portion is configured as a hole.

According to some exemplary embodiments of the present disclosure, the unit side length of the honeycomb unit is set between 5mm-12mm, optionally between 6mm-15mm, optionally between 7mm-14mm, optionally between 8mm-12mm, optionally greater than 4mm, and optionally 10mm.

According to some exemplary embodiments of the present disclosure, the gradient diameter range of the holes is within the range of 1 mm-5 mm.

Preferably, when the cell side length of the honeycomb unit is 5 mm, the gradient diameter range of the holes is set to 1 mm-2.5 mm.

Preferably, when the cell side length of the honeycomb unit is 12 mm, the gradient diameter range of the holes is set to 2 mm-5 mm.

According to some exemplary embodiments of the present disclosure, the spacing between edges of adjacent holes is set to 10%-200% of the maximum hole diameter.

According to some exemplary embodiments of the present disclosure, the maximum pore diameter is set to be larger than 40% of the cell side length of the honeycomb unit, and optionally larger than 50% of the cell side length of the honeycomb unit.

According to some exemplary embodiments of the present disclosure, the minimum pore size is set to be smaller than 50% of the cell side length of the honeycomb unit.

According to some exemplary embodiments of the present disclosure, the grammage range of the paper is set between 60g/ ^m2 and 200g/ ^m2 , optionally between 110g/ ^m2 and 170g/ ^m2 , and more optionally between 110g/ ^m2 and 140g/ ^m2 .

According to some exemplary embodiments of the present disclosure, the hole is at least one of a circular hole, an elliptical hole, a rectangular hole, and a square hole.

According to some exemplary embodiments of the present disclosure, each of the plurality of walls is provided with the weakened portion. According to one or more aspects of the present disclosure, the lower end of the packaging structure is open. According to one or more aspects of the present disclosure, the cut-out portion is configured as a slit, and the length range of the slit is set between 0% and 90% of the height of the honeycomb unit. According to one or more aspects of the present disclosure, the weakened portion is configured as a tear line extending along the height direction.

According to some exemplary embodiments of the present disclosure, the packaging structure includes a bottom support detachably attached to the bottom.

According to some exemplary embodiments of the present disclosure, the packaging structure also includes a plurality of additional hollow densely packed units, the upper ends of the additional hollow densely packed units are open and include a plurality of walls, wherein each of the plurality of walls of the plurality of additional hollow densely packed units does not have a weak portion arranged along the height direction.

According to some alternative embodiments of the present disclosure, at least one of the multiple walls in the multiple hollow paved units is provided with a transverse weakened portion, and the transverse weakened portion is configured as at least one transverse tangent line arranged along a direction perpendicular to the height direction.

According to the foldable packaging box and foldable packaging box assembly provided by the aforementioned various exemplary embodiments of the present disclosure, the foldable inner packaging structure and the foldable outer box body are formed into an integrated structure, which meets the industry's expected needs for the packaging structure and packaging box body of articles.

Other objects and advantages of the present disclosure will be apparent from the following description of the present disclosure with reference to the accompanying drawings, and will help to have a comprehensive understanding of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other aspects and features of the present disclosure will become more apparent by describing in detail exemplary embodiments of the present disclosure with reference to the accompanying drawings, in which:

1A to 1D are schematic structural diagrams showing a foldable packaging box according to a first exemplary embodiment of the present disclosure;

FIG2 is an operational flow chart showing the entire process of the foldable packaging box shown in FIG1A to FIG1D from a folded and compressed state to a three-dimensional state in a closed box;

3A to 3D are schematic structural diagrams showing a foldable packaging box according to a second exemplary embodiment of the present disclosure;

FIG4 is an operational flow chart showing the entire process of the foldable packaging box shown in FIGS. 3A to 3D from a folded and compressed state to a three-dimensional state in a closed box;

5A to 5D are schematic structural diagrams showing a foldable packaging box according to a third exemplary embodiment of the present disclosure;

6 is an operational flow chart showing the entire process of the foldable packaging box shown in FIGS. 5A to 5D from a folded and compressed state to a three-dimensional state in a closed box;

7A to 7D are schematic structural diagrams showing a foldable packaging box according to a fourth exemplary embodiment of the present disclosure;

8 is an operational flow chart showing the entire process of the foldable packaging box shown in FIGS. 7A to 7D from a folded and compressed state to a three-dimensional state in a closed box;

9A to 9D are schematic structural diagrams showing a foldable packaging box according to a fifth exemplary embodiment of the present disclosure;

10 is an operational flow chart showing the entire process of the foldable packaging box shown in FIGS. 9A to 9D from a folded and compressed state to a three-dimensional state in a sealed box;

11A to 11D are schematic structural diagrams showing a foldable packaging box assembly according to another exemplary embodiment of the present disclosure;

12 is a perspective view of a foldable inner packaging structure in a foldable packaging box according to an exemplary embodiment of the present disclosure;

FIG13 is a front view of the foldable inner packaging structure in the exemplary embodiment shown in FIG12;

FIG14 is a force analysis diagram of a tessellated unit in the exemplary embodiment shown in FIG12 ;

FIG15 is a schematic top plan view of the tessellated cells of the exemplary embodiment shown in FIG12 , wherein tearing behavior has occurred;

FIG16 is a schematic diagram of the use of the packaging structure in the exemplary embodiment shown in FIG12;

FIG17 is a schematic top plan view of the tessellated unit in the exemplary embodiment shown in FIG12 ;

18 is a perspective view of a foldable inner packaging structure in a foldable packaging box according to another exemplary embodiment of the present disclosure;

FIG. 19A is a perspective view of a foldable inner packaging structure according to an alternative embodiment of the present disclosure; and

19B is a perspective view of a foldable inner packaging structure according to an alternative embodiment of the present disclosure being applied to a foldable packaging box.

DETAILED DESCRIPTION

The various exemplary embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The description is actually only illustrative and is not intended to be any limitation to the present disclosure and its application or use. It will be appreciated by those skilled in the art that these embodiments only illustrate exemplary methods of the present disclosure that can be used to implement, rather than an exhaustive method. In addition, unless otherwise specifically stated, the relative arrangement of the parts, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure.

In the specification, the same or similar figure numbers indicate the same or similar parts. The following description of the embodiments of the present disclosure with reference to the accompanying drawings is intended to explain the technical content of the present disclosure and should not be construed as a limitation of the present disclosure. In addition, in the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the exemplary embodiments of the present disclosure. However, it is obvious that one or more embodiments may be implemented without these specific details. In other cases, well-known structures and devices are embodied in a diagrammatic manner to simplify the drawings.

Basic structure of foldable packaging box

The present disclosure provides a foldable packaging box. For example, referring to the exemplary embodiments shown in Figures 1A to 11D, the foldable packaging boxes 100, 100A, 100B, 100C, 100D, and 100E include: a foldable outer box body; and a foldable inner packaging structure 9. According to the present disclosure, for example, referring to the exemplary embodiments shown in Figures 12 to 18, the foldable inner packaging structure 9 is formed by a plurality of hollow close-laid units 2, and the upper end 21 of the close-laid unit 2 is open and includes a plurality of walls 23, wherein at least one of the plurality of walls 23 is provided with a weak portion 24 arranged in the height direction, and the wall 23 is formed by a tearable material. According to the present disclosure, the foldable inner packaging structure 9 is coupled to the foldable outer box body so that the foldable inner packaging structure 9 and the foldable outer box body form an integrated structure. According to the present disclosure, before the foldable packaging box is delivered for use, the foldable inner packaging structure and the foldable outer box body are folded into a folded and compressed state; after the foldable packaging box is delivered for use, the foldable inner packaging structure and the foldable outer box body are unfolded into a three-dimensional state to be used as a packaging box for placing items.

The term "folded compressed state" refers to a state in which the foldable inner packaging structure and/or the foldable outer box body in the foldable packaging box are folded and flattened according to the folds of the predetermined design before delivery for use to provide a smaller volume for easy storage; the term "three-dimensional state" refers to a state in which the foldable inner packaging structure and/or the foldable outer box body in the foldable packaging box are unfolded according to the folds of the predetermined design after delivery for use to provide a larger three-dimensional volume for easy use as a packaging box with a certain accommodation volume. In addition, according to the present disclosure, when the foldable packaging box is in a three-dimensional state, the height of the foldable outer box body is equal to or greater than the height of the foldable inner packaging structure. For example, in the exemplary embodiments shown in Figures 1A to 1D, Figures 5A to 5D, Figures 7A to 7D, and Figures 9A to 9D, the height of the foldable outer box body is equal to the height of the foldable inner packaging structure; and in the exemplary embodiments shown in Figures 3A to 3D, the height of the foldable outer box body is greater than the height of the foldable inner packaging structure.

According to the present disclosure, the foldable outer box and the foldable inner packaging structure can be made of the same material or different materials. The materials for making the foldable outer box and/or the foldable inner packaging structure include but are not limited to paper, plastic, plastic board, corrugated cardboard or kraft paper, etc.

According to the present disclosure, at least a portion of the foldable outer box is fixedly coupled to the foldable inner packaging structure. It should be understood that at least a portion of the foldable outer box and the foldable inner packaging structure can be fixedly coupled together in any manner known in the art, including but not limited to, for example, heat sealing, welding, crimping, bonding, adhesion, etc., and any combination of these methods.

In the exemplary embodiment of the present disclosure, the foldable packaging box is generally in a substantially rectangular shape when in a three-dimensional state. For the convenience of description and explanation, herein, the foldable outer box in a three-dimensional rectangular shape in a three-dimensional state presented in the drawings is generally in a substantially rectangular shape. Box body, the panel of the outer box body facing the reader is defined as the front panel, the panel opposite to the front panel is defined as the rear panel, the panel located on the left side of the front panel and the rear panel is defined as the left panel, and the panel located on the right side of the front panel and the rear panel is defined as the right panel. In addition, in some illustrated exemplary embodiments, the panel located above the front panel and the rear panel is defined as the upper panel, and the panel located below the front panel and the rear panel is defined as the lower panel. In addition, in some illustrated exemplary embodiments, there is an outer panel outside the aforementioned front panel, rear panel, left panel, right panel, upper panel and lower panel, and it is correspondingly defined as the front outer panel, rear outer panel, left outer panel, right outer panel, upper outer panel and lower outer panel, etc. It should be noted that the specific shape of the foldable packaging box provided by the present disclosure is not limited thereto, for example, it can be cylindrical or other polygonal three-dimensional shapes, etc.

According to the embodiment of the present disclosure, the foldable outer box body has a three-dimensional rectangular shape when it is in a three-dimensional state. For example, referring to the exemplary embodiment shown in Figures 1A to 11D, the foldable outer box body at least includes a front panel 11A, 11B, 11C, 11D, 11E, a left side panel 13A, 13B, 13C, 13D, 13E, a rear panel 12A, 12B, 12C, 12D, 12E and a right side panel 14A, 14B, 14C, 14D, 14E connected in sequence. According to the present disclosure, at least one of the front panel and the rear panel is fixedly coupled to the foldable inner packaging structure. In the illustrated exemplary embodiment, the front panel 11A, 11B, 11C, 11D, 11E and the rear panel 12A, 12B, 12C, 12D, 12E are both fixedly coupled to the foldable inner packaging structure 9. Of course, in other unillustrated embodiments, it can also be that at least one panel in the left side panel and the left side panel is fixedly coupled to the foldable inner packaging structure.

According to the present disclosure, the most basic structure of the foldable packaging box is that the foldable inner packaging structure and the foldable outer box body are fixedly combined into an integrated structure, so as to meet the industry's expected demand for the packaging structure and the packaging box body of the article. The following will describe and explain in detail various design schemes of the foldable outer box body and the specific structure of the foldable inner packaging structure in the form of illustrated exemplary embodiments.

Various exemplary embodiments of foldable packaging boxes

First Exemplary Embodiment

Figures 1A to 1D are schematic diagrams showing the structure of a foldable packaging box according to the first exemplary embodiment of the present disclosure, wherein Figure 1A shows that the foldable packaging box is in a folded and compressed state, Figure 1B shows that the foldable packaging box is in a three-dimensional state of being basically 50% unfolded, Figure 1C shows that the foldable packaging box is in a three-dimensional state of being basically 100% unfolded, and Figure 1D shows that the foldable packaging box is in a three-dimensional state of being sealed. Figure 2 is an operational flow chart showing the entire process of the foldable packaging box shown in Figures 1A to 1D from a folded and compressed state to a three-dimensional state of being sealed. It should be noted that in Figure 2 and Figures 4, 6, 8 and 10 to be described later, the circled arrows represent the operating sequence of the foldable packaging box from a folded and compressed state to a three-dimensional state of being sealed, and the solid/hollow arrows represent the unfolding mode/sealing mode of the foldable outer box body 10A and the foldable inner packaging structural member 9 during the operation.

Referring to Fig. 1A to Fig. 1D and Fig. 2, a foldable packaging box 100A according to a first exemplary embodiment includes a foldable outer box body 10A and a foldable inner packaging structure 9, and the foldable inner packaging structure 9 is coupled to the foldable outer box body 10A so that the foldable inner packaging structure 9 and the foldable outer box body 10A form an integrated structure. Specifically, in the embodiment shown in Fig. 1A to Fig. 1D, both the front panel 11A and the rear panel 12A are fixedly coupled to the foldable inner packaging structure 9 by bonding or the like.

In this embodiment, the foldable outer box body 10A includes in detail: a front panel 11A, a rear panel 12A, an upper panel 15A, a front outer panel 110A, a lower panel 16A, a left outer panel 130A, a right outer panel 140A, a left panel 13A, and a right panel 14A. Specifically, the front panel 11A and the rear panel 12A are combined with the inner foldable inner packaging structure 9. In the foldable outer box body 10A, the front outer panel 110A is connected to the upper panel 15A, the upper panel 15A is connected to the rear panel 12A, the left side panel 13A and the right side panel 14A are respectively connected between the front panel 11A and the rear panel 12A, the lower panel 16A is connected between the front panel 11A and the rear panel 12A, and the left side outer panel 130A and the right side outer panel 140A are respectively connected to the lower panel 16A. In addition, the left side outer panel 130A, the right side outer panel 140A, the left side panel 13A, the right side panel 14A and the lower panel 16A are all formed with a central folding line 8A. More specifically, the central folding lines of the left side outer panel 130A, the right side outer panel 140A and the lower panel 16A are the same folding line, as shown in FIG. 1A.

According to the above exemplary embodiment of the present disclosure, as shown in FIG. 1C and FIG. 1D , in a stereoscopic state, the left outer panel 130A may be bonded to the left panel 13A, and the right outer panel 140A may be bonded to the right panel 14A.

The foldable package 100A according to the first exemplary embodiment shown in FIGS. 1A to 1D and 2 may also be referred to as a “gift box type foldable package”.

Second Exemplary Embodiment

Fig. 3A to Fig. 3D are schematic diagrams showing the structure of a foldable packaging box according to a second exemplary embodiment of the present disclosure, wherein Fig. 3A shows that the foldable packaging box is in a folded and compressed state, Fig. 3B shows that the foldable packaging box is in a three-dimensional state of being substantially 50% unfolded, Fig. 3C shows that the foldable packaging box is in a three-dimensional state of being substantially 100% unfolded, and Fig. 3D shows that the foldable packaging box is in a three-dimensional state of being a sealed box. Fig. 4 is an operational flow chart showing the entire process of the foldable packaging box shown in Fig. 3A to Fig. 3D from the folded and compressed state to the three-dimensional state of being a sealed box.

Referring to Fig. 3A to Fig. 3D and Fig. 4, the foldable packaging box 100B according to the second exemplary embodiment includes a foldable outer box body 10B and a foldable inner packaging structure 9, and the foldable inner packaging structure 9 is coupled to the foldable outer box body 10B so that the foldable inner packaging structure 9 and the foldable outer box body 10B are formed into an integrated structure. Specifically, as shown in Fig. 3A to Fig. 3D, the foldable outer box body 10B includes: a front panel 11B, a rear panel 12B, an upper panel 15B, a front wing 111B, a lower panel 16B, a left outer panel 130B, a right outer panel 140B, a left panel 13B, a right panel 14B, a left wing 131B, and a right wing 141B. The front panel 11B and the rear panel 12B are coupled to the foldable inner packaging structure 9. The upper panel 15B is connected to the rear panel 12B, the left panel 13B and the right panel 14B are connected between the front panel 11B and the rear panel 12B, respectively, the lower panel 15B is connected between the front panel 11B and the rear panel 12B, the left outer panel 130B and the right outer panel 140B are connected to the lower panel 16B, respectively, and the front wing panel 111B, the left wing panel 131B and the right wing panel 141B are connected to the upper panel 15B, respectively. The left outer panel 130B, the right outer panel 140B, the left panel 13B, the right panel 14B and the lower panel 16B are all formed with a central folding line 8B.

According to the above-described embodiment of the present disclosure, in a three-dimensional state, the front wing panel 111B, the left wing panel 131B, and the right wing panel 141B are respectively inserted into the inner sides of the front panel 11B, the left panel 13B, and the right panel 14B.

According to the above-described embodiment of the present disclosure, the central folding lines of the left outer panel 130B, the right outer panel 140B, and the lower panel 16B are the same folding line.

According to the above embodiment of the present disclosure, as shown in FIGS. 3C and 3D , in a stereoscopic state, the left outer panel 130B may be bonded to the left panel 13B, and the right outer panel 140B may be bonded to the right panel 14B.

For example, in the illustrated exemplary embodiment, the height of the foldable outer box is greater than the height of the foldable inner packaging structure 9 .

The foldable packaging box 100B according to the second exemplary embodiment shown in FIGS. 3A to 3D and 4 may also be referred to as an “airplane box type foldable packaging box”.

Third Exemplary Embodiment

Fig. 5A to Fig. 5D are schematic diagrams showing the structure of a foldable packaging box according to a third exemplary embodiment of the present disclosure, wherein Fig. 5A shows that the foldable packaging box is in a folded and compressed state, Fig. 5B shows that the foldable packaging box is in a three-dimensional state of being substantially 50% unfolded, Fig. 5C shows that the foldable packaging box is in a three-dimensional state of being substantially 100% unfolded, and Fig. 5D shows that the foldable packaging box is in a three-dimensional state of being a sealed box. Fig. 6 is an operational flow chart showing the entire process of the foldable packaging box shown in Fig. 5A to Fig. 5D from the folded and compressed state to the three-dimensional state of being a sealed box.

Referring to Fig. 5A to Fig. 5D and Fig. 6, the foldable packaging box 100C according to the third exemplary embodiment includes a foldable outer box body 10C and a foldable inner packaging structure 9, and the foldable inner packaging structure 9 is coupled to the foldable outer box body 10C so that the foldable inner packaging structure 9 and the foldable outer box body 10C are formed into an integrated structure. As shown in Fig. 5A to Fig. 5D, the foldable outer box body 10C includes: a front panel 11C, a rear panel 12C, a left side panel 13C, a right side panel 14C, a front upper panel 150C, a rear upper panel 151C, a left upper panel 130C, a right upper panel 140C, a front lower panel 160C, a rear lower panel 161C, a left lower panel 131C, and a right lower panel 141C. Specifically, the front panel 11C and the rear panel 12C are combined with the foldable inner packaging structure 9, the left side panel 13C and the right side panel 13C are respectively connected between the front panel 11C and the rear panel 12C, the front upper panel 150C and the front lower panel 160C are respectively connected to the front panel 11C, the rear upper panel 151C and the rear lower panel 161C are respectively connected to the rear panel 12C, the left upper panel 130C and the left lower panel 131C are respectively connected to the left side panel, and the right upper panel 140C and the right lower panel 141C are respectively connected to the right side panel 14C. The left upper panel 130C, the left lower panel 131C and the left side panel 13C are formed with the same left center folding line 81C, and the right upper panel 140C, the right lower panel 141C and the right side panel 14C are formed with the same right center folding line 82C.

According to the above-mentioned embodiment of the present disclosure, in a three-dimensional state, as shown in Figures 5C and 5D, the front upper panel 150C and the rear upper panel 160C jointly constitute the first upper panel, the upper left panel 130C and the upper right panel 140C jointly constitute the second upper panel, and one of the first upper panel and the second upper panel covers the other; at the same time, the front lower panel 151C and the rear lower panel 161C jointly constitute the first lower panel, the lower left panel 131C and the lower right panel 141C jointly constitute the second lower panel, and one of the first lower panel and the second lower panel covers the other. In the illustrated exemplary embodiment, the front upper panel 150C and the rear upper panel 160C (or the front lower panel 151C and the rear lower panel 161C) can have substantially the same area, that is, the area of both is half of the area of the entire upper panel. However, in other embodiments not shown, the areas of the two may also be different.

The foldable packaging box 100C according to the third exemplary embodiment shown in FIGS. 5A to 5D and 6 may also be referred to as a “0201 box type foldable packaging box”.

Fourth Exemplary Embodiment

Fig. 7A to Fig. 7D are schematic diagrams showing the structure of a foldable packaging box according to a fourth exemplary embodiment of the present disclosure, wherein Fig. 7A shows that the foldable packaging box is in a folded and compressed state, Fig. 7B shows that the foldable packaging box is in a three-dimensional state of being substantially 50% unfolded, Fig. 7C shows that the foldable packaging box is in a three-dimensional state of being substantially 100% unfolded, and Fig. 7D shows that the foldable packaging box is in a three-dimensional state of being a sealed box. Fig. 8 is an operational flow chart showing the entire process of the foldable packaging box shown in Fig. 7A to Fig. 7D from the folded and compressed state to the three-dimensional state of being a sealed box.

7A to 7D and 8, a foldable packaging box 100D according to a fourth exemplary embodiment includes a foldable outer box body 10D. and a foldable inner packaging structure 9, the foldable inner packaging structure 9 is combined with the foldable outer box body 10D, so that the foldable inner packaging structure 9 and the foldable outer box body 10D form an integrated structure. As shown in Figures 7A to 7D, the foldable outer box body 10D includes: a front panel 11D, a rear panel 12D, a left side panel 13D, a right side panel 14D, a front upper panel 150D, a rear upper panel 151D, a left upper panel 130D, a right upper panel 140D, a front lower panel 160D, a rear lower panel 161D, a left lower panel 131D, and a right lower panel 141D. Specifically, the front panel 11D and the rear panel 12D are combined with the foldable inner packaging structure 9, the left side panel 13D and the right side panel 14D are respectively connected between the front panel 11D and the rear panel 12D, the front upper panel 150D and the front lower panel 150D are respectively connected to the front panel 11D, the rear upper panel 160D and the rear lower panel 161D are respectively connected to the rear panel 12D, the left upper panel 130D and the left lower panel 131D are respectively connected to the left side panel 13D, and the right upper panel 151D and the right lower panel 161D are respectively connected to the right side panel 14D. The left upper panel 130D, the left lower panel 131D and the left side panel 13D are formed with the same left center folding line 81D, and the right upper panel 140D, the right lower panel 141D and the right side panel 14D are formed with the same right center folding line 82D.

According to the above-mentioned embodiments of the present disclosure, as shown in Figures 7C and 7D, in a three-dimensional state, the front upper panel 150D constitutes a first upper panel, the rear upper panel 160D constitutes a second upper panel, the left upper panel 130D and the right upper panel 140D together constitute a third upper panel, the first upper panel and the second upper panel are covered on the third upper panel, and one of the first upper panel and the second upper panel is covered on the other; at the same time, the front lower panel 160D constitutes a first lower panel, the rear lower panel 161D constitutes a second lower panel, the left lower panel 131D and the right lower panel 141D together constitute a third lower panel, the first lower panel and the second lower panel are covered on the third upper panel, and one of the first lower panel and the second lower panel is covered on the other.

According to the above-described embodiment of the present disclosure, as shown in FIGS. 7C and 7D , at least one of the front upper panel 150D and the rear upper panel 160D is formed with a tear line 88D.

The foldable packaging box 100D according to the fourth exemplary embodiment shown in FIGS. 7A to 7D and 8 may also be referred to as a “0203 box type foldable packaging box”.

Fifth Exemplary Embodiment

Fig. 9A to Fig. 9D are schematic diagrams showing the structure of a foldable packaging box according to a fifth exemplary embodiment of the present disclosure, wherein Fig. 9A shows that the foldable packaging box is in a folded and compressed state, Fig. 9B shows that the foldable packaging box is in a three-dimensional state of being substantially 50% unfolded, Fig. 9C shows that the foldable packaging box is in a three-dimensional state of being substantially 100% unfolded, and Fig. 9D shows that the foldable packaging box is in a three-dimensional state of being a sealed box. Fig. 10 is an operational flow chart showing the entire process of the foldable packaging box shown in Fig. 9A to Fig. 9D from the folded and compressed state to the three-dimensional state of being a sealed box.

Referring to Fig. 9A to Fig. 9D and Fig. 10, the foldable packaging box 100E according to the fifth exemplary embodiment includes a foldable outer box body 10E and a foldable inner packaging structure 9, and the foldable inner packaging structure 9 is coupled to the foldable outer box body 10E so that the foldable inner packaging structure 9 and the foldable outer box body 10E are formed into an integrated structure. As shown in Fig. 9A to Fig. 9D, the foldable outer box body 10E includes: a first outer box body part 100E and a second outer box body part 100' separated from each other. Specifically, the first outer box body part 100E includes: a front panel 11E, a rear panel 12E, a left side panel 13E, a right side panel 14E, a left side outer panel 130E, a right side outer panel 140E, and a lower panel 16E. The front panel 11E and the rear panel 12E are combined with the foldable inner packaging structure 9, the left panel 13E and the right panel 14E are respectively connected between the front panel 11E and the rear panel 12E, the lower panel 16E is connected between the front panel 11E and the rear panel 12E, and the left outer panel 130E and the right outer panel 140E are respectively connected to the lower panel 16E. The left panel 13E and the right panel 14E are respectively formed with a center fold The left outer panel 130E, the right outer panel 140E and the lower panel 16E are respectively formed with a central fold line 82E.

According to the above-described embodiment of the present disclosure, the central folding lines of the left outer panel 130E, the right outer panel 140E, and the lower panel 16E are the same folding line.

According to the above embodiment of the present disclosure, as shown in FIG. 9C and FIG. 9D , in a stereoscopic state, the left outer panel 130E may be bonded to the left panel 13E, and the right outer panel 140E may be bonded to the right panel 14E.

In addition, in the foldable outer box 10E, the second outer box part 100' includes: an upper cover plate 15', a front cover plate 11', a rear cover plate 12', a left cover plate 13', and a right cover plate 14'. The front cover plate 11', the rear cover plate 12', the left cover plate 13', and the right cover plate 14' are connected to the upper cover plate 15' respectively, and the front cover plate 11', the left cover plate 13', the rear cover plate 12' and the right cover plate 14' are connected together in sequence. The second outer box part 100' is configured to be detachably mounted on the first outer box part 100E in a three-dimensional state.

The foldable packaging box 100E according to the fourth exemplary embodiment shown in FIGS. 9A to 9D and 10 may also be referred to as a “floor-lid type foldable packaging box”.

Sixth Exemplary Embodiment

Figures 11A to 11D are structural schematic diagrams showing a foldable packaging box assembly according to another exemplary embodiment of the present disclosure, wherein Figure 11A shows the foldable packaging box in a folded and compressed state, Figure 11B shows the foldable packaging box in a three-dimensional state that is basically 50% unfolded, Figure 11C shows the foldable packaging box in a three-dimensional state that is basically 100% unfolded, and Figure 11D shows a combination of a foldable packaging box in a three-dimensional state and another foldable packaging box in a three-dimensional state.

Referring to Figures 11A to 11D, a foldable packaging box assembly according to another exemplary embodiment of the present disclosure includes: at least two foldable packaging boxes 100, 100'. After at least two foldable packaging boxes 100, 100' are delivered for use, at least two foldable packaging boxes 100, 100' are respectively unfolded into a three-dimensional state and cooperate with each other to be used as a packaging box for placing articles. In the illustrated exemplary embodiment, a foldable packaging box 100 adopts the most basic structure of the foldable packaging box provided by the present disclosure, that is, as shown in Figures 11A to 11C, the foldable inner packaging structure 9 and the foldable outer box body are fixedly combined into an integrated structure, and the foldable outer box body includes a front panel 11, a left side panel 13, a rear panel 12 and a right side panel 14 connected in sequence. According to the present disclosure, the front panel 11 and the rear panel 12 are both fixedly coupled to the foldable inner packaging structure 9. Further, as shown in FIG. 11D , another foldable packaging box 100′ may adopt the same most basic structure as the aforementioned foldable packaging box 100, or may adopt any one of the design schemes in the aforementioned first to fifth exemplary embodiments, as long as the height of the foldable outer box body is equal to or greater than the height of the foldable inner packaging structure when the foldable packaging box 100′ is in a three-dimensional state (so as to accommodate the foldable packaging box 100).

Various exemplary embodiments of foldable inner packaging structures

In the foldable packaging box provided by the present disclosure, the foldable inner packaging structure is formed by closely paving a plurality of hollow closely paved units, the upper and lower ends of the closely paved units are open and include a plurality of walls, wherein at least one of the plurality of walls is provided with a weak portion arranged along the height direction, and the wall is formed of a tearable material.

Fig. 12 is a perspective view of a foldable inner packaging structure 9 in a foldable packaging box according to an exemplary embodiment of the present disclosure. As shown in Fig. 12, the foldable inner packaging structure 9 of this embodiment is formed by paving a plurality of hollow close-paved units 2.

The term "tessellation" refers to the process of tiling one or more plane shapes so that there are no gaps or overlaps between them. Fill a surface. "Close-packed unit" refers to a basic three-dimensional unit composed of one or more plane figures, which are spliced together to form a three-dimensional packaging piece. Close-packed units may include, for example, regular triangle close-packed units, regular quadrilateral close-packed units, regular hexagonal close-packed units, etc. In the packaging field, a single regular hexagonal close-packed unit is usually spliced together to form a honeycomb structure, but it should be understood that, as mentioned above, the present disclosure is not limited to a single regular hexagonal close-packed unit, but may include, for example, regular triangle close-packed units, regular quadrilateral close-packed units or other close-packed units and combinations thereof.

As shown in Figure 12, the upper end 20 of the densely laid unit 2 of this embodiment includes a plurality of walls 23. In this embodiment, the lower end 21 is also open, and it should be understood that the lower end can be set to be closed. In addition, the use of directional terms (such as upper and lower) in this article is corresponding, and the corresponding directional terms can be reversed depending on, for example, the use state. The intersection of the three walls forms an edge 25. In the embodiment shown in Figure 12, the densely laid unit 2 is arranged as a single regular hexagonal densely laid unit or a honeycomb unit, so the densely laid unit 2 includes six walls. Through multiple walls, the densely laid unit forms a hollow structure surrounded by multiple walls, which is arranged so that it can greatly save materials under the premise of ensuring the supporting function, and also has a relatively good buffering function when it is squeezed or impacted. In addition, the hollow structure also makes it possible to fold the densely laid unit under certain circumstances, which is convenient for storage and transportation. In other words, the hollow structure can make it convenient to switch the foldable inner packaging structure between the unfolded structure shown in Figure 12 and the folded structure not shown.

In addition, at least one of the multiple walls 23 of the hollow closely spaced unit 2 is provided with a weak portion arranged in the height direction. In some exemplary embodiments, each of the multiple walls 23 of the closely spaced unit 2 is provided with the aforementioned weak portion. In other exemplary embodiments, the packaging structure also includes a plurality of additional hollow closely spaced units (not shown), the upper ends of these additional hollow closely spaced units are open and include a plurality of walls, wherein each of the multiple walls of these plurality of additional hollow closely spaced units does not have a weak portion arranged in the height direction. That is to say, in the aforementioned other exemplary embodiments, some of the hollow closely spaced units constituting the packaging structure are provided with weak portions, and other hollow closely spaced units constituting the packaging structure are not provided with weak portions.

The term "weak portion" refers to a portion whose strength (such as tensile strength or compressive strength) is weakened relative to the rest of the portion. When a material is subjected to tension or pressure, it will first break or tear at the weak portion due to the stress concentration at the weak portion. In this embodiment, by providing a weak portion on the wall, when an article is pressed downward from above, the densely packed unit directly below the article will be subjected to downward pressure, and the wall below the edge of the article will generate tension relative to the portion that is not pressed downward, and due to the existence of the weak portion, this tension will cause the wall to be torn apart. The following will analyze the forces on the densely packed units and the weak portion when the foldable inner packaging structure is under pressure.

Herein, the weak portion may also include a cutout, a tear line, or the weak portion may be made of a material having a different tear strength than the rest of the wall. The term "cutout" means that a portion of the material of the wall is removed to increase its strength. The cutout may include a hole, a slit, etc.

In this embodiment, the weak portion is set as a hole 24. It should be understood that the hole disclosed herein does not necessarily mean that it is a circular hole unless it is clearly stated as a circular hole. In the present disclosure, the hole may include a circular hole, an elliptical hole, a square hole, etc. For the foldable inner packaging structure, it can be relatively easy to perform a perforation process on it, so the manufacturing cost is relatively low.

FIG13 shows a front view of a foldable inner packaging structure 9 of an exemplary embodiment of the present disclosure, from which the distribution of the holes 24 can be more clearly seen. As shown in FIG13 , in this embodiment, the holes 24 are arranged in plurality and are arranged on the walls of the close-packed units in the height direction of the close-packed units. In this embodiment, the holes 24 are arranged on all six walls of the close-packed units, and it should be understood that the holes can be arranged on one or more walls of the close-packed units as needed.

The working principle of the foldable inner packaging structural member 9 of the present application is explained more clearly below with reference to the force analysis diagram of the densely laid unit shown in Figure 14. In Figure 14, a single regular hexagonal densely laid unit, that is, a honeycomb densely laid unit, is taken as an example for analysis.

One of the characteristics of the structure formed by the densely packed unit is that it will be crushed when subjected to axial load. As shown in Figure 14, when the top of the densely packed unit is subjected to pressure, the densely packed unit will have a tendency to fold or crush downward. The force represented by the arrow F in Figure 14 is the downward pressure acting on the edge of the densely packed unit (where the three walls meet).

First, the deformation behavior when the force F is uniformly applied to all the densely laid units in Figure 14 will be described. At this time, the force F above all the densely laid units is uniform, and when the pressure F is first applied, the upper part of the wall will be crushed and folded first, and then the upper part that is crushed and folded will transfer the force to the middle and lower parts of the wall. The crushed and folded part of the wall causes the force area to increase due to the crushing and folding, and the crushed and folded part also plays a supporting role, so that if the force needs to be further transmitted downward, it is necessary to apply a greater force. In this way, all the densely laid units on the same layer are crushed and folded synchronously. In fact, as the crushing proceeds, the speed of increase of the required force is almost doubled. Since the foldable inner packaging structural member composed of honeycomb densely laid units has the same structure per layer and is approximately isotropic, the structural stability is good, generally speaking, a large force is required to be crushed, and the weight of commonly used items is not easy to deform the densely laid structure when placed on the honeycomb densely laid units, therefore, the above structure has better compression resistance and bending resistance.

The deformation behavior when pressure F is applied to one or more closely spaced units will be described later. Since there is no downward pressure F on the adjacent closely spaced units, when the wall of the closely spaced unit to which pressure F is applied has a downward crushing tendency, a relative movement tendency is generated between adjacent edges (such as edges 250 and 251 shown in FIG. 14 ), so that the edge 251 not under pressure will generate a pulling force on the edge 250 under pressure, that is, the wall 230 located below the edge of the article is subjected to a pulling force F1 in a direction away from the edge under pressure as shown in FIG. 14 . The existence of this pulling force F1 makes it more difficult for the closely spaced units to be crushed, and therefore, the foldable inner packaging structure composed of honeycomb closely spaced units can be used to support articles of various shapes, regardless of whether their area is larger or smaller than the floor area of the foldable inner packaging structure.

In this embodiment, the wall of the densely packed unit is made of a tearable material. As for the tearable material, for example, paper or aramid paper can be used. The tearable material may tear when subjected to shear force. Therefore, when pressure is applied to one or more densely packed units as described above, there is a possibility that the wall 230 between the unpressurized edge 251 and the pressurized edge 251 is torn by the shear force. However, since the wall of the densely packed unit usually has a certain supporting function, the densely packed unit is usually crushed before tearing. The wall of the densely packed unit can adopt a single-layer structure and/or a double-layer structure. Taking the use of paper as the wall of the densely packed unit as an example, the wall of the single-layer structure is formed by a layer of paper, and the wall of the double-layer structure is formed by two layers of paper bonded to each other. The cut-out portion can be formed on the wall adopting the single-layer structure, can also be formed on the wall adopting the double-single-layer structure, and can also be formed on the wall adopting the single-layer structure and the wall adopting the double-single-layer structure at the same time.

With reference to FIG14, since the compressed close-laid unit has a tendency to move downward, the tension F1 gradually generates a tendency from the horizontal to the oblique downward, and therefore there will be a vertical component force in the crushing process, and this vertical component force will cause the surrounding close-laid units that are not under pressure to be gradually crushed, thereby causing the crushing behavior to gradually spread in the horizontal direction. And in many cases, this crushing and spreading behavior in the horizontal direction occurs before the wall is torn, that is, the crushing and spreading behavior has occurred before the pressure that causes the wall to tear has not yet reached the size of the pressure. That is, the close-laid unit under pressure and the close-laid unit under no pressure (in this article, the pressure under pressure and the pressure under no pressure refer to whether the direct pressure generated by, for example, articles directly above the close-laid unit) cannot form an obvious tearing zone (a completely vertical tearing crack is formed in the best case), so that the article cannot be smoothly pressed into the foldable inner packaging structure or even if the article is pressed into the foldable inner packaging structure, the article cannot be well wrapped. The wrapping behavior will be described in more detail with reference to FIG17.

The applicant found that by providing a weak portion on the wall of the densely-paved unit, when a pressure F is applied to the densely-paved unit, the wall below the edge of the article is easy to tear, so that the densely-paved unit below the edge of the article is easy to separate from the surrounding densely-paved units and be crushed and folded. And from the above analysis of the crushing behavior of the densely-paved unit, it can be seen that when the densely-paved unit is crushed, a stronger support will gradually be formed below, and at this time Since the material is torn apart at the weak part, the crushing and spreading behavior in the horizontal direction is prevented, and the densely laid units around it will form a surrounding structure, which can also play a good protective role.

A tiling unit according to an embodiment of the present disclosure will be described below with reference to FIG. 15 , which is a top plan schematic diagram of a tiling unit according to an exemplary embodiment of the present disclosure.

The bold part in Figure 15 indicates the densely packed unit under pressure, and the densely packed unit under pressure shown in Figure 15 has been torn apart from the surrounding densely packed units. As shown in Figure 15, due to the existence of the weak part, the weak part will form a stress concentration point, which is easy to tear when subjected to force, thereby facilitating the densely packed unit under force and the adjacent densely packed units to tear apart, and finally making the densely packed unit under the force-bearing area shown in Figure 15 completely torn apart from the adjacent densely packed units.

FIG16 shows a schematic diagram of the use of a foldable inner packaging structure according to an exemplary embodiment of the present disclosure. As shown in FIG16 , when an article is placed on the foldable inner packaging structure of the present embodiment and pressure is applied, the article will press down the close-laid unit located below it, and the close-laid unit located below the article will be crushed due to the pressure. And due to the existence of the weak part, the wall of the close-laid unit below the edge of the article will be torn from its weak part. With the further pressing of the article or the increase of the crushing depth, the wall of the close-laid unit directly below will be crushed and folded, and the wall that has been crushed and folded will gradually increase the force required for further crushing due to the increase in area after folding and the stacking effect, and thus can play a good supporting role. At the same time, due to the tearing of the weak part, the crushing and spreading in the horizontal direction is avoided, so that the close-laid unit separated from the crushed close-laid unit will still maintain its original shape due to the structural stability of the close-laid unit itself, thereby forming a containing space that is basically close to the shape of the article to wrap the article. Thus, a good packaging of the article can be formed.

It can be seen from the above description that in this embodiment, the densely packed structure is crushed in the vertical direction when subjected to pressure to form a concave portion for accommodating the product. At the same time, the arrangement of the weak portion on the wall of the densely packed structure prevents the crushing and spreading of the densely packed structure in the horizontal direction, so that there will be a clear tearing zone between the densely packed units under pressure and the densely packed units not under pressure, thereby forming a good wrapping of the article.

Usually, honeycomb dense-paved structures or honeycomb paperboards are used to support objects. The applicant has discovered for the first time through theoretical analysis and experimental verification (the experiments will be described in detail below) that honeycomb dense-paved structures and honeycomb paperboards can be used to wrap or package items. And as mentioned above, since the dense-paved structure is crushed in the vertical direction, the items can be pressed into the honeycomb dense-paved structure and the bottom still has good support after being pressed in. The setting of the weak part avoids the crushing and spreading of the dense-paved structure in the horizontal direction, so that a very good wrapping effect can be formed for the items. In addition, the honeycomb dense-paved structure of the embodiment of the present disclosure is simple in structure, easy to manufacture and very easy to use. It is only necessary to press the items into the honeycomb dense-paved structure, and there is no restriction on the shape of the items. After pressing different items, the dense-paved units that are not under pressure separate the items, so that the items can be independently protected.

Returning to Figures 12 and 13 again, it can be seen that in this embodiment, the holes 24 are arranged in a plurality and are arranged in a gradient in the height direction of the wall. Specifically, the size of the holes gradually decreases from the upper end to the lower end of the wall. A hole with a larger size means a lower strength here, that is, it is more likely to tear. Therefore, the holes with a decreasing size gradient in the height direction mean that the crushing force and tearing force of each layer of densely laid units also increase in a gradient. Therefore, under the action of the same pressure, the densely laid units above will be more likely to be crushed first, while the densely laid units below will require a greater force to be crushed later. Therefore, when the article is pressed down, the upper part of the densely laid unit that first contacts the article is crushed first, and it is also easier to tear and separate from the surrounding densely laid units. As the crushing proceeds, the already crushed densely laid units will also fold up, and combined with the smaller holes below, it takes a greater force to crush the densely laid units below. The holes thus arranged in a gradient manner make it possible to more effectively produce a layer-by-layer crushing or progressive crushing effect in the height direction, avoiding the problem of the article being pressed into the foldable container. During the process of stacking the inner packaging structural parts, other parts will be deformed at the same time or first, affecting the overall effect.

In this embodiment, the holes arranged in a gradient are arranged from the upper end in the height direction of the wall, but do not extend the entire height of the wall, that is, do not completely extend to the lower end of the wall. It should be understood that this does not constitute a limitation, and the size, spacing, and extension distance of the holes can be set as needed. In this embodiment, the holes are arranged at approximately the middle position along the width direction of the wall. It should be understood that the holes can also be arranged at a position closer to any edge along the width direction of the wall.

The following will further discuss the effects of hole spacing, hole shape, paper weight, side length of the honeycomb hexagonal structure, etc. on the packaging of articles through experiments.

First, prepare a plurality of foldable inner packaging structural parts for quasi-static compression test. In this embodiment, the foldable inner packaging structural part adopts a honeycomb structure. Regarding the quasi-static compression test, this test uses a carton compression tester GK-KY25 (commercially available from Suzhou Sushi Testing Group Co., Ltd.), the compression speed is 1mm/min, and the compression depth is based on the end judgment of completely pressing the article into the interior of the honeycomb structure (at this time, the corresponding stress rises sharply). Regarding the article, it is a regular cylinder with a height of about 60mm and a diameter of about 60mm. The basic information of each sample is shown in Table 1 below:

Table 1

First, the parameter information is explained as follows.

Regarding the sample size, it indicates the length, width and height dimensions of the foldable inner packaging structure. Regarding the unit arrangement, it indicates the number of units arranged longitudinally and the number of units arranged transversely. Regarding the unit side length, it indicates the side length of the hexagon of the honeycomb structure. Regarding the maximum pore size and the minimum pore size, it indicates the maximum longitudinal dimension and the minimum longitudinal dimension of the hole. For example, in the case where the hole is a circular hole, the maximum pore size indicates the maximum diameter of the hole, and the minimum pore size indicates the minimum diameter of the hole. In the case where the hole is an elliptical hole, the maximum pore size indicates the maximum diameter on the long axis of the hole, and the minimum pore size indicates the minimum diameter on the long axis of the hole. Regarding the hole spacing, it indicates the spacing between the adjacent edges of adjacent holes in the vertical direction. Regarding the grammage of paper, it indicates the grammage of the paper constituting the honeycomb structure. In addition, it should be noted that the comparison between the above samples should be understood as a comparison between different embodiments of the present application, not a comparison with the prior art, and the experimental comparison below should also be understood in this way.

1. First, the influence of the unit side length will be discussed. The unit side length of the honeycomb structure mainly affects the tightness of the object being wrapped. The smaller the unit side length, the better the object is wrapped. Figure 6 shows a top view of the honeycomb structure, and the shaded part in the figure is the honeycomb unit located below the test object.

It can be seen that, in an ideal situation, assuming that the top view area of the test object is S, the number of honeycomb cells completely located directly below it is m, and the number of honeycomb cells covered by its edges is n. When the object is pressed into the honeycomb structure, as mentioned above, the walls of the honeycomb cells located below the edges of the object are torn. Therefore, the number of honeycomb cells that are crushed and torn is (m+n), and these The area of the honeycomb unit can be expressed as S1, that is, S1 = (m + n) x S honeycomb unit, and α = S/SS1 can be defined to indicate the tightness of the object being wrapped. In addition, the unit side length of the honeycomb unit is defined as l. According to simple geometric relationships, we can get:

Obviously, when l is smaller, α is larger, and the tighter the object is wrapped, that is, the better the wrapping effect. However, at the same time, l should not be too small, as too small l will lead to difficulties in the production of honeycomb structures. Specifically, if l is less than 4 mm, during the production process, the tensile force will be higher than the interlayer bonding force that the paper can withstand, causing the paper to break.

Therefore, after theoretical deduction and testing, it is appropriate to set the unit side length within the range of 5mm-12mm. Preferably, the unit side length can be set to 10mm. The above samples all use a length of 10mm (there is no range) as the unit side length.

In addition, it should be understood that the present disclosure is not limited to a side length of 10 mm, and other suitable unit side lengths may be adopted according to actual conditions as long as they do not violate the above theory in the present disclosure.

2. The following will further discuss the effects of the size, spacing and grammage of the holes on the crushing behavior and the tearing behavior. The size, spacing and grammage of the holes will all affect the ease of crushing the honeycomb structure, and therefore, the three together determine the ease of crushing the honeycomb structure. As mentioned above, the packaging of articles in the present disclosure is achieved by the layer-by-layer crushing or progressive crushing of the honeycomb cells under the articles and the tearing of the wall under the edge of the article (or between the honeycomb cells under the edge of the article and the adjacent honeycomb cells). The larger the size of the holes, the lower the strength of the honeycomb cells, and the easier it is to produce tearing behavior. The smaller the size of the holes, the higher the strength of the honeycomb cells, and the more difficult it is to produce tearing behavior. The larger the spacing between the holes, the higher the strength of the honeycomb cells, and the more difficult it is to produce tearing behavior. The smaller the spacing between the holes, the lower the strength of the honeycomb cells, and the more likely it is to produce tearing behavior. The smaller the spacing between the holes, the lower the strength of the honeycomb cells, and the more likely it is to produce tearing behavior. The smaller the grammage of the paper, the lower the strength of the honeycomb cells, and the easier it is to produce tearing behavior and crushing behavior. The greater the weight of the paper, the greater the strength of the honeycomb unit, and the more difficult it is to produce tearing and crushing behaviors. Therefore, in order to ensure the occurrence of tearing and crushing behaviors, the size of the holes should not be too small, the spacing between the holes should not be too large, and the weight of the paper should not be too high. Otherwise, it is difficult to produce crushing. More importantly, it is too difficult to tear the honeycomb unit during crushing. The honeycomb structure may have been crushed as a whole before the paper is torn (that is, it is impossible to produce a layer-by-layer crushing effect), and the honeycomb units other than the objects are also deformed, that is, the horizontal spread of the crushing behavior replaces the tearing behavior. But at the same time, the size of the holes should not be too large, the spacing between the holes should not be too small, and the weight of the paper should not be too small, in order to ensure the most basic support function.

First, compare the test results of sample A and sample C in Table 1. For sample A and sample C, except for the minimum pore size and the pore spacing, other conditions are the same. Specifically, the pore spacing in sample A is set to 7mm, while the pore spacing in sample C is set to a larger 14mm. The test results show that sample A can press the object into the honeycomb structure relatively smoothly, while sample C has difficulty pressing the object into the honeycomb structure. Therefore, it can be seen that too large a pore spacing will make it difficult to produce tearing behavior.

The test results of sample A and sample B are further compared. For sample A and sample B, except for the shape of the hole and the maximum pore size, other conditions are the same. Specifically, the shape of the hole in sample A is circular, and the maximum pore size is 4.5 mm, and the shape of the hole in sample B is elliptical, and the maximum pore size is 5 mm. After testing, it is found that both sample A and sample B can produce relatively good crushing behavior and tearing behavior.

Then, sample D and sample E were further compared. For sample D and sample E, except for the different paper weight, other conditions were the same. Specifically, the paper weight in sample D is 110 g/m ² , while the paper weight in sample E is 170 g/m ² . After testing, it was found that under other appropriate conditions, papers with a weight of 110 g/m ² and 170 g/m ² can also produce good crushing behavior and tearing behavior.

As shown above, only 5 representative samples are listed for data comparison. The applicant found the following parameter settings through a series of theoretical derivations and experimental comparisons. The gram weight range of paper can be set between 110g/ ^m2 and 170g/ ^m2 . Further, the gram weight range of paper can be set between 110g/ ^m2 and 140g/ ^m2 . The unit side length of the honeycomb unit can be set between 5mm-12mm, optionally between 6mm-15mm, optionally between 7mm-14mm, and optionally between 8mm-12mm. When the unit side length of the honeycomb unit is 5mm, the gradient diameter range of the hole (that is, the maximum pore size and the minimum pore size that decrease in a gradient along the height direction) can be set to 1mm-2.5mm. When the unit side length of the honeycomb unit is 12mm, the gradient diameter range of the hole can be set to 2mm-5mm. The spacing between the edges of adjacent holes can be set to 10%-200% of the maximum pore size.

Next, the effects of the uniformity of the holes, the relationship between the maximum hole diameter and the unit side length, and the number of perforated walls on the packaging of articles will be further discussed through experiments.

Similar to the above test, a plurality of foldable inner packaging structural parts are first prepared for quasi-static compression test. In this embodiment, the foldable inner packaging structural part adopts a honeycomb structure. This test uses a carton compression tester GK-KY25 (commercially available from Suzhou Sushi Testing Group Co., Ltd.), with a compression speed of 1 mm/min, and the compression depth is based on the end judgment of completely pressing the article into the interior of the honeycomb structure (at this time, the corresponding stress rises sharply). Regarding the article, it is a regular cylinder with a height of about 60 mm and a diameter of about 60 mm. The basic information of each sample is shown in Table 2 below:

Table 2

The same parameters shown in Table 2 have the same meanings as those shown in Table 1, and are not described here in detail. In addition, regarding the relationship between the maximum pore size and the minimum pore size, taking sample F as an example, the same maximum pore size and the same minimum pore size indicate that the sizes of the holes set on the wall are the same, that is, holes of equal size are set. The number of open-cell walls is the number of walls with holes set in the six walls of the honeycomb unit.

First, compare sample F and sample G. For sample F and sample G, the holes in sample F are equal in size, while the holes in sample G are set in a gradient manner. Specifically, the size of the holes gradually decreases from the upper end to the lower end along the height direction of the wall. By comparison, it is found that in sample F, when the sample is pressed in, the honeycomb unit at the bottom also produces a crushing phenomenon. In contrast, by setting gradient holes in sample G, the honeycomb unit at the bottom does not produce a crushing phenomenon. Combined with the above analysis, it can be seen that the gradient-set holes make it possible to more effectively produce a layer-by-layer crushing effect in the height direction, avoiding the crushing phenomenon at the bottom when the object is pressed into the honeycomb structure, thereby affecting the overall effect.

Next, compare sample H and sample I. For sample H and sample I, except for the maximum pore size and the minimum pore size (or pore size gradient range), other conditions are the same. Specifically, the pore size gradient range in sample H is 4.5mm-2mm, and the pore size gradient range in sample I is 3mm-0.5mm. Through comparison, it is found that although both sample H and sample I can produce crushing behavior and tearing behavior, a certain collapse phenomenon of honeycomb units is also produced around the article in sample H, that is, the crushing behavior has a small range of spread in the horizontal direction, which makes the wrapping effect of the sample H after the article is pressed in is poor. However, there is no crushing spread in the horizontal direction in sample I, which makes the wrapping effect of the sample I after the article is pressed in better.

Finally, sample J and sample K will be compared. For sample J and sample K, except for the different number of perforated walls, other conditions are the same. Specifically, six walls in sample J are provided with holes, and only two walls in sample K are provided with holes. Through comparison, it is found that although sample J and sample K can produce crushing behavior and tearing behavior, the collapse of the honeycomb unit around the article in sample J occurs, and the tearing behavior of the wall without holes is also poor. This shows that the crushing behavior of sample J has spread in the horizontal direction, which makes the wrapping effect of the sample J after the article is pressed into the sample J poor. However, there is no crushing spread in the horizontal direction in sample K, and because holes are provided on the six walls, the tearing behavior is also good, which makes the wrapping effect of the sample K after the article is pressed into the sample K better.

It can be seen from the experimental comparison in Table 2 that the crushing behavior of the holes with a gradient setting is better than the crushing behavior of the holes with a uniform distribution, and the holes with a gradient setting can produce good layer-by-layer crushing behavior, which is consistent with the above analysis. In addition, the applicant found through experiments that when the maximum pore size is less than 30% of the cell side length of the honeycomb unit, crushing and spreading in the horizontal direction are prone to occur, making the honeycomb unit around the article easy to change, resulting in poor wrapping. When the maximum pore size is greater than 40% of the cell side length of the honeycomb unit, the crushing and spreading in the horizontal direction can be well weakened. In addition, the more the number of open hole walls, the easier it is for crushing and tearing behaviors to occur, and it is easier to prevent crushing and spreading in the horizontal direction. Therefore, in the present disclosure, the maximum pore size is set to be greater than 40% of the cell size of the honeycomb unit. Further, holes are preferably set on six walls.

In addition, in this embodiment, by constructing the honeycomb unit from the paper-based tearable material, the overall structure is 100% green and recyclable. At the same time, since the paper-based tearable material is not elastic, a permanent structure for protecting the article can be formed, which can better provide corresponding protection for the article.

Next, a description of a foldable inner packaging structure in a foldable packaging box of another exemplary embodiment of the present disclosure will be given. The basic structure and operation of the foldable inner packaging structure in this other embodiment are the same as those of the foldable inner packaging structure in the aforementioned embodiment. Therefore, in the foldable inner packaging structure in this other exemplary embodiment, the description of the components with the same function and structure as those of the components of the foldable inner packaging structure in the aforementioned exemplary embodiment will be omitted.

Figure 18 shows another exemplary embodiment of the foldable inner packaging structure 9 in the foldable packaging box according to the present disclosure. As shown in Figure 18, the main difference between this another exemplary embodiment and the aforementioned exemplary embodiment is that the bottom of the foldable inner packaging structure 9 is provided with a bottom support 7. The bottom support 7 is flat and detachably attached to the bottom of the foldable inner packaging structure 9, such as by bonding, etc. When in use, the foldable inner packaging structure 9 is placed on the ground by the bottom support 7, thereby increasing the contact area with the ground, so that it can better play a supporting role. When the foldable inner packaging structure needs to be folded and transported, for example, the bottom support 7 can be separated from the foldable inner packaging structure 9 and attached to the bottom of the foldable inner packaging structure 9 when in use.

As can be seen from the above, the foldable inner packaging structure provided in one or more embodiments of the present disclosure adopts a honeycomb structure. The honeycomb structure is formed by paving a plurality of hollow honeycomb units, the upper and lower ends of the honeycomb units are open and include six walls, wherein the six walls are formed of paper and are provided with a plurality of holes arranged in a gradient with the size gradually decreasing from the upper end in the height direction downward. The honeycomb structure ensures that it can play a certain supporting role and can produce crushing behavior when under pressure. The walls are formed of paper to ensure that the walls can produce tearing behavior when subjected to tension. The arrangement of the holes ensures that the walls are more likely to tear at the holes. The gradient arrangement of the holes ensures the occurrence of crushing and tearing behavior layer by layer, reducing or avoiding the spread of crushing in the horizontal direction.

According to an alternative embodiment of the present disclosure, as shown in FIG. 19A, the present disclosure provides another foldable inner packaging structure 9, which is placed in another direction (i.e., perpendicular to the placement direction in FIG. 16) compared to the embodiment shown in FIG. 16, wherein at least another wall 23 of the multiple walls 23 in the multiple hollow closely laid units 2 is provided with a transverse weak portion 80. For example, the wall provided with the transverse weak portion 80 may be a wall of the hollow closely laid units 2 located on the peripheral side among the multiple hollow closely laid units 2. According to some embodiments, the transverse weak portion 80 may be configured as at least one transverse cutting line 80 arranged in a direction perpendicular to the height direction. In the embodiment shown in FIG. 19A, the transverse cutting line 80 passes through all the multiple hollow closely laid units 2 of the packaging structure 9 in a direction perpendicular to the height direction of the closely laid units, i.e., the three layers of hollow closely laid units shown in the figure all have at least one wall cut by the transverse cutting line. As shown in FIG. 19B , in an example where the foldable packaging box includes a foldable outer box body 10 and a packaging structure 2 as shown in FIG. 19A , when an article P is placed above the packaging structure 2 and pressure is applied, the article will press down the close-laid unit below it, and the close-laid unit below the article will be crushed due to the pressure. . In an embodiment not shown in the figure, the cross-section line 80 may also not penetrate all the close-laid units 2 in a direction perpendicular to the height direction of the close-laid units, for example, only penetrate 50% of the close-laid units, and the walls of the remaining 50% of the close-laid units do not have the cross-section line, that is, assuming that there are 10 layers of close-laid units, the cross-section line 80 only cuts the walls of 5 layers of close-laid units 2 in a direction perpendicular to the height direction of the close-laid units, and does not cut the walls of the remaining 5 layers of close-laid units 2. In this way, when the article is pressed into the packaging structure along the cross-section line, the upper 5 layers of close-laid units are compressed, while the lower 5 layers of close-laid units are not compressed, thereby providing good cushioning for the packaging protection of the article. It should be noted that, unless there is a conflict in structure and/or function, the structure of the foldable inner packaging structure 9 described in the alternative embodiment shown in Figures 19A and 19B can also be combined with the various exemplary embodiments shown in Figures 1 to 18. For example, in the combined solution, the closely laid units 2 located in the middle of the inner packaging structure 9 can adopt the cut-off portion design described in the various exemplary embodiments shown in Figures 1 to 18, while the closely laid units 2 located on the peripheral side adopt the transverse line design described in the alternative embodiment shown in Figures 19A and 19B.

The dimensions and values described herein should not be understood as being strictly limited to the exact numerical values cited. Instead, unless otherwise specified, each dimension is intended to represent the recited value and a functionally equivalent range around that value. For example, a dimension disclosed as "10 mm" is intended to mean "about 10 mm".

Although some embodiments of the present disclosure have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the present disclosure, the scope of which is defined in the claims and their equivalents.

Claims (34)

A foldable packaging box, comprising: A foldable outer box; and A foldable inner packaging structure, wherein the foldable inner packaging structure is formed by paving a plurality of hollow paved units, wherein the upper end of the paved unit is open and comprises a plurality of walls, wherein at least one of the plurality of walls is provided with a weak portion arranged in a height direction, and the wall is formed of a tearable material; Wherein, the foldable inner packaging structure is combined with the foldable outer box body so that the foldable inner packaging structure and the foldable outer box body form an integrated structure; Wherein, before the foldable packaging box is delivered for use, the foldable inner packaging structure and the foldable outer box body are folded into a folded and compressed state; after the foldable packaging box is delivered for use, the foldable inner packaging structure and the foldable outer box body are unfolded into a three-dimensional state to be used as a packaging box for placing articles. The foldable packaging box according to claim 1, wherein: At least a portion of the foldable outer box is fixedly coupled to the foldable inner packaging structure. The foldable packaging box according to claim 1, wherein: When the foldable packaging box is in a three-dimensional state, the height of the foldable outer box body is equal to or greater than the height of the foldable inner packaging structure. The foldable packaging box according to claim 1, wherein: The weak portion is configured as a cutout portion on the wall, and the cutout portion is arranged in one or more portions along the height direction of the wall; Wherein, the size of the one or more cutouts gradually decreases from the upper end of the densely laid unit downward in the height direction, and is arranged in a gradient; and/or wherein the one or more cutouts are arranged along the height direction of the wall, and the cutouts are arranged at middle positions along the width direction of the wall; and/or Wherein, the one or more cutouts are arranged at middle positions along the width direction of the wall. The foldable packaging box according to claim 4, wherein: The close-packed unit is a hexagonal honeycomb unit, the wall of the honeycomb unit is formed of paper, and the cutout portion is configured as a hole formed in the wall. The foldable packaging box according to claim 4, wherein: The cell side length of the honeycomb unit is set between 5mm and 12mm, and the gradient diameter range of the holes is within the range of 1mm to 5mm; Wherein, when the cell side length of the honeycomb unit is 5 mm, the gradient diameter range of the hole is set to 1 mm-2.5 mm; Wherein, when the unit side length of the honeycomb unit is 12 mm, the gradient diameter range of the hole is set to 2 mm-5 mm. The foldable packaging box according to claim 5, wherein: The hole is at least one of a circular hole, an elliptical hole, a rectangular hole, and a square hole. The foldable packaging box according to claim 5, wherein: Each of the plurality of walls is provided with the weakened portion; and/or The lower end of the packaging structure is open. The foldable packaging box according to claim 4, wherein: The paved unit is a hexagonal honeycomb unit, the wall of the honeycomb unit is formed by paper, the cutout portion is configured as a slit, and the length range of the slit is set between 1% and 90% of the height of the honeycomb unit; and/or The weak portion is configured as a tear line extending along the height direction; and/or The packaging structure includes a bottom support removably attached to a bottom portion. The foldable packaging box according to any one of claims 1 to 9, wherein: The foldable outer box body at least comprises a front panel, a left panel, a rear panel and a right panel connected in sequence; Wherein, at least one of the front panel and the rear panel is fixedly coupled to the foldable inner packaging structure. The foldable packaging box according to claim 10, wherein: The foldable outer box further comprises: the front panel, the rear panel, the upper panel, the front outer panel, the lower panel, the left outer panel, the right outer panel, the left panel, and the right panel; Wherein, the front panel and the rear panel are combined with the foldable inner packaging structure; Wherein, the front outer panel is connected to the upper panel, the upper panel is connected to the rear panel, the left panel and the right panel are respectively connected between the front panel and the rear panel, the lower panel is connected between the front panel and the rear panel, and the left outer panel and the right outer panel are respectively connected to the lower panel; Wherein, the left outer panel, the right outer panel, the left panel, the right panel and the lower panel are all formed with a central folding line. The foldable packaging box according to claim 10, wherein: The foldable outer box further comprises: the front panel, the rear panel, the upper panel, the front wing panel, the lower panel, the left outer panel, the right outer panel, the left panel, the right panel, the left wing panel, and the right wing panel; Wherein, the front panel and the rear panel are combined to the foldable inner packaging structure; Wherein, the upper panel is connected to the rear panel, the left panel and the right panel are respectively connected between the front panel and the rear panel, the lower panel is connected between the front panel and the rear panel, the left outer panel and the right outer panel are respectively connected to the lower panel, and the front wing panel, the left wing panel and the right wing panel are respectively connected to the upper panel; Wherein, the left outer panel, the right outer panel, the left panel, the right panel and the lower panel are all formed with a central folding line. The foldable packaging box according to claim 10, wherein: The foldable outer box further comprises: the front panel, the rear panel, the left panel, the right panel, the front upper panel, the rear upper panel, the left upper panel, the right upper panel, the front lower panel, the rear lower panel, the left lower panel, and the right lower panel; The front panel and the rear panel are combined with the foldable inner packaging structure, the left side panel and the right side panel are respectively connected between the front panel and the rear panel, the front upper panel and the front lower panel are respectively connected to the front panel, the rear upper panel and the rear lower panel are respectively connected to the rear panel, and the left upper panel and the left lower panel are respectively connected to the left side panel. The upper right panel and the lower right panel are connected to the right side panel respectively; The upper left panel, the lower left panel and the left side panel form a same left central folding line, and the upper right panel, the lower right panel and the right side panel form a same right central folding line. The foldable packaging box according to claim 10, wherein: The foldable outer box further comprises: the front panel, the rear panel, the left panel, the right panel, the front upper panel, the rear upper panel, the left upper panel, the right upper panel, the front lower panel, the rear lower panel, the left lower panel, and the right lower panel; Wherein, the front panel and the rear panel are combined with the foldable inner packaging structure, the left panel and the right panel are respectively connected between the front panel and the rear panel, the front upper panel and the front lower panel are respectively connected to the front panel, the rear upper panel and the rear lower panel are respectively connected to the rear panel, the left upper panel and the left lower panel are respectively connected to the left panel, and the right upper panel and the right lower panel are respectively connected to the right panel; The upper left panel, the lower left panel and the left side panel form a same left central folding line, and the upper right panel, the lower right panel and the right side panel form a same right central folding line. The foldable packaging box according to claim 10, wherein: The foldable outer box further comprises: a first outer box portion and a second outer box portion separated from each other; The first outer box body part includes: the front panel, the rear panel, the left panel, the right panel, the left outer panel, the right outer panel, and the lower panel; Wherein, the front panel and the rear panel are combined with the foldable inner packaging structure, the left panel and the right panel are respectively connected between the front panel and the rear panel, the lower panel is connected between the front panel and the rear panel, and the left outer panel and the right outer panel are respectively connected to the lower panel; wherein the left panel and the right panel are respectively formed with a central folding line, and the left outer panel, the right outer panel and the lower panel are respectively formed with a central folding line; The second outer box body part includes: an upper cover plate, a front cover plate, a rear cover plate, a left cover plate, and a right cover plate; Wherein, the front cover plate, the rear cover plate, the left cover plate, and the right cover plate are respectively connected to the upper cover plate, and the front cover plate, the left cover plate, the rear cover plate, and the right cover plate are sequentially connected together; The second outer box portion is configured to be detachably mounted on the first outer box portion in a three-dimensional state. The foldable packaging box according to any one of claims 1 to 15, wherein the foldable inner packaging structure is arranged so that the upper ends of the plurality of closely laid units face the vertical direction, so that the foldable packaging box is suitable for placing articles on the upper ends of one or more of the plurality of closely laid units when in use; or The foldable inner packaging structure is arranged so that the upper ends of the plurality of closely laid units face the horizontal direction, so that the foldable packaging box is suitable for placing articles on one or more walls of the plurality of closely laid units when in use. A foldable packaging box assembly, comprising: At least two foldable packaging boxes according to any one of claims 1 to 10; Wherein, after the at least two foldable packaging boxes are delivered for use, the at least two foldable packaging boxes are respectively unfolded into a three-dimensional state and cooperate with each other to be used as packaging boxes for placing articles. A packaging structure, which is formed by paving a plurality of hollow paved units, wherein the upper end of the paved unit is open and includes a plurality of walls, wherein at least one of the plurality of walls is provided with a weak portion arranged along a height direction, and the wall is formed of a tearable material. The packaging structure of claim 18, wherein the weakened portion is configured as a cut-out portion in the wall. The packaging structure according to claim 19, wherein the cutout portion is arranged in one or more portions along the height direction of the wall. The packaging structure according to any one of claims 18 to 20, wherein the closely laid units are hexagonal honeycomb units. 23. The packaging structure of claim 21 wherein the walls of the honeycomb cells are formed from paper. The packaging structure of claim 21, wherein the cutout portion is configured as a hole. The packaging structure according to claim 23, wherein the unit side length of the honeycomb unit is set between 5mm-12mm, optionally between 6mm-15mm, optionally between 7mm-14mm, optionally between 8mm-12mm, optionally greater than 4mm, and optionally 10mm. The packaging structure according to claim 23, wherein the gradient diameter range of the holes is within the range of 1 mm-5 mm. The packaging structure according to claim 25, wherein, when the unit side length of the honeycomb unit is 5 mm, the gradient diameter range of the hole is set to 1 mm-2.5 mm. The packaging structure according to claim 25, wherein, when the unit side length of the honeycomb unit is 12 mm, the gradient diameter range of the hole is set to 2 mm-5 mm. The packaging structure according to claim 23, wherein the hole is at least one of a circular hole, an elliptical hole, a rectangular hole, and a square hole. The packaging structure of claim 18, wherein each of the plurality of walls is provided with the weakened portion. The packaging structure according to claim 18, wherein the lower end of the packaging structure is open. The packaging structure according to any one of claims 18 to 20, wherein the cutout portion is configured as a slit, and a length range of the slit is set between 1% and 90% of the height of the honeycomb unit. The packaging structure according to claim 18, wherein the weakened portion is configured as a tear line extending along the height direction. The packaging structure according to any one of claims 18 to 20, wherein: At least one of the plurality of walls in the plurality of hollow closely-packed units is provided with a transverse weakened portion, and the transverse weakened portion is configured as at least one transverse tangent line arranged along a direction perpendicular to the height direction. The packaging structure according to any one of claims 18 to 20, further comprising: A plurality of additional hollow close-packed units, the upper ends of the additional hollow close-packed units are open and include a plurality of walls, wherein the Each of the multiple walls of the multiple additional hollow paved units does not have a weak portion arranged along the height direction.