Foldable packaging box, foldable packaging box assembly, and packaging structural member

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 and foldable packaging box assembly and packaging structure TECHNICAL FIELD

[0001] The present disclosure relates generally to the field of packaging technology, and more specifically, to a foldable packaging box and foldable packaging box assembly and packaging structure. BACKGROUND

[0002] At present, with the rapid development of e-commerce and offline retail business, both consumers and brand parties have put forward more requirements for product protection and sustainable development. Generally speaking, the packaging of products requires good support and cushioning protection for the products, and provides a good opening experience for consumers. In the offline retail scene, single or multiple products often need to be placed in a fixed position in a gift box. In the e-commerce packaging scene, when one or more products need to be transported in a packaging box, in order to ensure that the products are not damaged during transportation, it is expected that the packaging of each product is independent of each other, avoiding the mutual influence between the products and the packaging box or different products.

[0003] Traditional packaging forms often use pre-formed packaging structures (such as paper inner cards or plastic inner cards), and then place the formed packaging structures into the packaging box body to achieve the fixed placement of the products in the packaging box body by using the packaging structures. In the traditional packaging form, the packaging structure and the packaging box body are two separate components, and need to be operated and assembled separately when used. Considering the large demand of e-commerce and gift box business, lower manufacturing cost of packaging structure and packaging box body, more environmentally friendly materials and more flexible structure to adapt to different product sizes are also desirable. Therefore, there is a continuous need for improvement in the packaging structure and packaging box body of the product.

[0004] SUMMARY

[0005] The purpose of the present disclosure aims to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0006] According to one aspect of the present disclosure, a foldable packaging box is provided, the foldable packaging box comprising:

[0007] a foldable outer box body; and

[0008] a foldable inner packaging structure formed by densely packing a plurality of hollow densely packed units, the upper end of the densely packed units being open and comprising a plurality of walls, wherein at least one of the plurality of walls is provided with a weak portion arranged in the height direction, the wall being formed of a tearable material;

[0009] The foldable inner packaging structure is combined to the foldable outer box body, so that the foldable inner packaging structure and the foldable outer box body are formed into an integrated configuration.

[0010] Before the foldable packaging box is put into 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 put into use, the foldable inner packaging structure and the foldable outer box body are unfolded into a three-dimensional state to serve as a packaging box for placing articles.

[0011] According to some example embodiments of the present disclosure, at least a portion of the foldable outer box body is fixedly combined to the foldable inner packaging structure.

[0012] According to some example embodiments of the present disclosure, in the three-dimensional state of the packaging box, the height of the foldable outer box body is equal to or greater than the height of the foldable inner packaging structure.

[0013] According to some example embodiments of the present disclosure, the weakened portion is configured as a cutout on the wall, and the cutout is arranged in one or more along the height direction of the wall; wherein the size of the one or more cutouts gradually decreases along the height direction from the upper end of the densely packed unit, 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 along the height direction of the wall can be arranged at equal intervals or at unequal intervals.

[0014] According to some example embodiments of the present disclosure, the densely packed unit is a hexagonal honeycomb unit, the wall of the honeycomb unit is formed of paper, and the cutout is configured as a hole formed on the wall.

[0015] According to some example embodiments of the present disclosure, the unit side length of the honeycomb unit is arranged between 5mm-12mm, and the gradient diameter range of the hole is within the range of 1mm-5mm; wherein, in the case that the unit side length of the honeycomb unit is 5mm, the gradient diameter range of the hole is arranged to be 1mm-2.5mm; wherein, in the case that the unit side length of the honeycomb unit is 12mm, the gradient diameter range of the hole is arranged to be 2mm-5mm.

[0016] According to some example embodiments of the present disclosure, the spacing between the edges of adjacent holes is arranged to be 10%-200% of the maximum hole diameter, the maximum hole diameter is arranged to be greater than 40% of the unit side length of the honeycomb unit, and the minimum hole diameter is arranged to be less than 50% of the unit side length of the honeycomb unit.

[0017] According to some example embodiments of the present disclosure, the paper has a grammage ranging from 110 g / m 2 to 170 g / m 2 .

[0018] According to some example 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.

[0019] According to some example embodiments of the present disclosure, each of the plurality of walls is provided with the weakened portion; and / or, the lower end of the packaging structure is open.

[0020] According to some example embodiments of the present disclosure, the densely packed unit is a hexagonal honeycomb unit, the walls of the honeycomb unit are formed of paper, the cut-out portion is configured as a slit, the length of the slit ranges from 1% to 90% of the height of the honeycomb unit; and / or, the weakened portion is configured as a tear line extending along the height direction; and / or, the packaging structure comprises a bottom support detachably attached to the bottom.

[0021] According to example embodiments of the present disclosure, the foldable outer box body comprises at least a front panel, a left side panel, a back panel, and a right side panel connected in sequence; wherein at least one of the front panel and the back panel is fixedly combined to the foldable inner packaging structure.

[0022] According to a first example embodiment of the present disclosure, the foldable outer box body further comprises: the front panel, the back panel, an upper panel, a front outer panel, a lower panel, a left outer panel, a right outer panel, the left side panel, and the right side 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 side panel and the right side 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, 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 side panel, the right side panel, and the lower panel are all formed with a center folding line.

[0023] Preferably, the center folding lines of the left outer panel, the right outer panel, and the lower panel are the same folding line.

[0024] Preferably, in a three-dimensional state, the left outer panel is combined to the left side panel by adhesion, and the right outer panel is combined to the right side panel by adhesion.

[0025] According to a second exemplary embodiment of the present disclosure, the foldable outer box further comprises: the front panel, the back panel, an upper panel, a front wing panel, a lower panel, a left outer panel, a right outer panel, the left side panel, the right side panel, a left wing panel, a right wing panel; wherein the front panel and the back panel are combined to the foldable inner packaging structure; wherein the upper panel is connected to the back panel, the left side panel and the right side 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, the left outer panel and the right outer panel are respectively connected to the lower panel, 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 side panel, the right side panel and the lower panel are all formed with a center folding line.

[0026] Preferably, in the three-dimensional state, the front wing panel, the left wing panel and the right wing panel are respectively inserted into the inner side of the front panel, the left side panel and the right side panel.

[0027] Preferably, the center folding lines of the left outer panel, the right outer panel and the lower panel are the same folding line.

[0028] Preferably, in the three-dimensional state, the left outer panel is combined to the left side panel by adhesion, and the right outer panel is combined to the right side panel by adhesion.

[0029] According to a third exemplary embodiment of the present disclosure, the foldable outer box further comprises: the front panel, the back panel, the left side panel, the right side panel, a front upper panel, a back upper panel, a left upper panel, a right upper panel, a front lower panel, a back lower panel, a left lower panel, a right lower panel; wherein the front panel and the back panel are combined to 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 front upper panel and the front lower panel are respectively connected to the front panel, the back upper panel and the back lower panel are respectively connected to the back panel, the left upper panel and the left lower panel are respectively connected to the left side panel, 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 are formed with a same left center folding line, and the right upper panel, the right lower panel and the right side panel are formed with a same right center folding line.

[0030] Preferably, in the stereoscopic state, the front upper panel and the rear upper panel jointly constitute a first upper panel, the left upper panel and the right upper panel jointly constitute a second upper panel, one of the first upper panel and the second upper panel covers the other; the front lower panel and the rear lower panel jointly constitute a first lower panel, the left lower panel and the right lower panel jointly constitute a second lower panel, one of the first lower panel and the second lower panel covers the other.

[0031] According to a fourth exemplary embodiment of the present disclosure, the foldable outer box further comprises: a front panel, a rear panel, a left side panel, a right side panel, a front upper panel, a rear upper panel, a left upper panel, a right upper panel, a front lower panel, a rear lower panel, a left lower panel, a right lower panel; wherein the front panel and the rear panel are combined to the foldable inner packaging structure, the left side panel and the right side panel are connected between the front panel and the rear panel respectively, the front upper panel and the front lower panel are connected with the front panel respectively, the rear upper panel and the rear lower panel are connected with the rear panel respectively, the left upper panel and the left lower panel are connected with the left side panel respectively, the right upper panel and the right lower panel are connected with the right side panel respectively; wherein the left upper panel, the left lower panel and the left side panel are formed with a same left side center folding line, the right upper panel, the right lower panel and the right side panel are formed with a same right side center folding line.

[0032] Preferably, in the stereoscopic state, the front upper panel constitutes a first upper panel, the rear upper panel constitutes a second upper panel, the left upper panel and the right upper panel jointly constitute a third upper panel, the first upper panel and the second upper panel cover the third upper panel, one of the first upper panel and the second upper panel covers the other; the front lower panel constitutes a first lower panel, the rear lower panel constitutes a second lower panel, the left lower panel and the right lower panel jointly constitute a third lower panel, the first lower panel and the second lower panel cover the third upper panel, one of the first lower panel and the second lower panel covers the other.

[0033] According to a fifth exemplary embodiment of the present disclosure, the foldable outer box further comprises: a first outer box part and a second outer box part separated from each other; the first outer box part comprises: the front panel, the back panel, the left side panel, the right side panel, the left outer panel, the right outer panel, and the lower panel; wherein the front panel and the back panel are combined to the foldable inner packaging structure, the left side panel and the right side panel are connected between the front panel and the back panel respectively, the lower panel is connected between the front panel and the back panel, and the left outer panel and the right outer panel are connected with the lower panel respectively; wherein the left side panel and the right side panel are respectively formed with a center folding line, and the left outer panel, the right outer panel and the lower panel are respectively formed with a center folding line.

[0034] Preferably, the center folding lines of the left outer panel, the right outer panel and the lower panel are the same folding line.

[0035] Preferably, in the three-dimensional state, the left outer panel is combined to the left side panel by adhesion, and the right outer panel is combined to the right side panel by adhesion.

[0036] Further, the second outer box part comprises: an upper cover plate, a front cover plate, a back cover plate, a left cover plate, and a right cover plate; wherein the front cover plate, the back cover plate, the left cover plate, and the right cover plate are connected with the upper cover plate respectively, and the front cover plate, the left cover plate, the back cover plate, and the right cover plate are connected together in sequence; wherein the second outer box part is configured to be detachably sleeved to the first outer box part in the three-dimensional state.

[0037] According to another aspect of the present disclosure, there is provided a foldable packaging box assembly comprising: at least two foldable packaging boxes as described in any of the preceding 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 cooperated with each other to serve as a packaging box for placing articles.

[0038] 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 the height of the foldable outer box is equal to or greater than the height of the foldable inner packaging structure when the foldable packaging box is in the three-dimensional state.

[0039] According to some exemplary embodiments of the present disclosure, in the foldable packaging box, the foldable inner packaging structure is arranged such that the upper end portions of the plurality of densely packed units are oriented in a vertical direction, so that the foldable packaging box is adapted to place articles above the upper end portions of one or more of the plurality of densely packed units when in use.

[0040] According to some example embodiments of the present disclosure, in the foldable packaging box, the foldable inner packaging structure is arranged such that the upper end of the plurality of densely packed units is directed towards the horizontal direction, so that the foldable packaging box is suitable for placing articles on the wall of one or more of the plurality of densely packed units when in use.

[0041] According to yet another aspect of the present disclosure, there is also provided a packaging structure formed by densely packing a plurality of hollow densely packed units, the upper end of the densely packed units being open and comprising a plurality of walls, wherein at least one of the plurality of walls is provided with a weakness arranged in the height direction, the wall being formed of a tearable material.

[0042] According to some example embodiments of the present disclosure, the weakness is configured as a cutout on the wall.

[0043] According to some example embodiments of the present disclosure, the cutout is arranged in one or more in the height direction of the wall.

[0044] According to some example embodiments of the present disclosure, the size of the one or more cutouts gradually decreases in the height direction from the upper end of the densely packed unit in the height direction, arranged in a gradient.

[0045] According to some example embodiments of the present disclosure, the one or more cutouts are arranged in the height direction of the wall. The cutouts can be arranged at equal intervals or at unequal intervals in the height direction of the wall.

[0046] According to some example embodiments of the present disclosure, the one or more cutouts are arranged at an intermediate position in the width direction of the wall.

[0047] According to some example embodiments of the present disclosure, the densely packed units are hexagonal honeycomb units.

[0048] According to some example embodiments of the present disclosure, the walls of the honeycomb units are formed of paper.

[0049] According to some example embodiments of the present disclosure, the cutout is configured as a hole.

[0050] According to some example embodiments of the present disclosure, the unit length of the honeycomb units is arranged to be between 5mm-12mm, optionally between 6mm-15mm, optionally between 7mm-14mm, optionally between 8mm-12mm, optionally greater than 4mm, and optionally 10mm.

[0051] According to some example embodiments of the present disclosure, the gradient diameter of the hole is in the range of 1mm-5mm.

[0052] Preferably, in the case where the cell edge length of the honeycomb cell is 5 mm, the range of the gradient diameter of the hole is set to 1 mm - 2.5 mm.

[0053] Preferably, in the case where the cell edge length of the honeycomb cell is 12 mm, the range of the gradient diameter of the hole is set to 2 mm - 5 mm.

[0054] According to some example embodiments of the present disclosure, the spacing between the edges of adjacent holes is set to 10% - 200% of the maximum hole diameter.

[0055] According to some example embodiments of the present disclosure, the maximum hole diameter is set to be greater than 40% of the cell edge length of the honeycomb cell, and optionally greater than 50% of the cell edge length of the honeycomb cell.

[0056] According to some example embodiments of the present disclosure, the minimum hole diameter is set to be less than 50% of the cell edge length of the honeycomb cell.

[0057] According to some example embodiments of the present disclosure, the range of the grammage of the paper is set to be between 60 g / m 2 and 200 g / m 2 , optionally between 110 g / m 2 and 170 g / m 2 , and more optionally between 110 g / m 2 and 140 g / m 2 .

[0058] According to some example 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.

[0059] According to some example 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 of the slit is set to be in the range of 0% and 90% of the height of the honeycomb cell. According to one or more aspects of the present disclosure, the weakened portion is configured as a tear line extending in the height direction.

[0060] According to some example embodiments of the present disclosure, the packaging structure includes a bottom support detachably attached to the bottom.

[0061] According to some example embodiments of the present disclosure, the packaging structure further includes a plurality of additional hollow packed cells, the upper end of the additional hollow packed cells being open and including a plurality of walls, wherein each of the plurality of walls of the additional hollow packed cells does not have a weakened portion arranged in the height direction.

[0062] According to some alternative embodiments of the present disclosure, at least one of the plurality of walls of the plurality of hollowed packed cells is provided with a transverse weakness configured to be arranged along at least one transverse line arranged in a direction perpendicular to the height direction.

[0063] The foldable packaging box and the foldable packaging box assembly according to the aforementioned various exemplary embodiments of the present disclosure, in which the foldable inner packaging structure and the foldable outer box body are formed in an integrated configuration, satisfy the expectations of the industry for the packaging structure and the packaging box body of an article.

[0064] Other objects and advantages of the present disclosure will become apparent and help to understand the present disclosure from the following description of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0065] The above and other aspects and features of the present disclosure will become more apparent from the following detailed description of exemplary embodiments of the present disclosure, taken in conjunction with the accompanying drawings, in which:

[0066] FIGS. 1A to 1D are structural schematic views showing a foldable packaging box according to a first exemplary embodiment of the present disclosure;

[0067] FIG. 2 is an operation flow diagram showing the entire process of the foldable packaging box shown in FIGS. 1A to 1D from a folded and compressed state to a three-dimensional state in which a box is closed;

[0068] FIGS. 3A to 3D are structural schematic views showing a foldable packaging box according to a second exemplary embodiment of the present disclosure;

[0069] FIG. 4 is an operation flow diagram 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 which a box is closed;

[0070] FIGS. 5A to 5D are structural schematic views showing a foldable packaging box according to a third exemplary embodiment of the present disclosure;

[0071] FIG. 6 is an operation flow diagram 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 which a box is closed;

[0072] FIGS. 7A to 7D are structural schematic views showing a foldable packaging box according to a fourth exemplary embodiment of the present disclosure;

[0073] FIG. 8 is an operation flow diagram 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 which a box is closed;

[0074] FIGS. 9A to 9D are structural schematic views showing a foldable packaging box according to a fifth exemplary embodiment of the present disclosure;

[0075] FIG. 10 is an operational flowchart showing the entire process of the foldable packaging box shown in FIGS. 9A to 9D from a folded and compressed state to a state in which the box is closed;

[0076] FIGS. 11A to 11D are structural schematic views showing a foldable packaging box assembly according to another exemplary embodiment of the present disclosure;

[0077] FIG. 12 is a perspective view of a foldable inner packaging structure in a foldable packaging box according to one exemplary embodiment of the present disclosure;

[0078] FIG. 13 is a front view of the foldable inner packaging structure in the exemplary embodiment shown in FIG. 12;

[0079] FIG. 14 is a force analysis diagram of a tiling unit in the exemplary embodiment shown in FIG. 12;

[0080] FIG. 15 is a top plan schematic view of the tiling unit in the exemplary embodiment shown in FIG. 12, in which a tearing action has occurred;

[0081] FIG. 16 is a use schematic view of the packaging structure in the exemplary embodiment shown in FIG. 12;

[0082] FIG. 17 is a top plan schematic view of the tiling unit in the exemplary embodiment shown in FIG. 12;

[0083] FIG. 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;

[0084] FIG. 19A is a perspective view of a foldable inner packaging structure according to an alternative embodiment of the present disclosure; and

[0085] FIG. 19B is a perspective view of the foldable inner packaging structure according to the alternative embodiment of the present disclosure applied to a foldable packaging box. DETAILED DESCRIPTION

[0086] Various exemplary embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be noted that the following description of various exemplary embodiments is merely illustrative in nature and is in no way intended to limit the disclosure, its application or uses. Those skilled in the art will appreciate that the embodiments merely illustrate exemplary ways in which the present disclosure can be implemented, rather than exhaustively. Furthermore, the relative arrangement of components, numerical expressions and values set forth in these embodiments are not limiting to the scope of the present disclosure, unless otherwise specifically stated.

[0087] In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the disclosure with reference to the accompanying drawings is intended to explain the technical contents of the disclosure, and should not be understood as a limitation on the disclosure. In addition, in the following detailed description, for the sake of explanation, numerous specific details are set forth to provide a thorough understanding of exemplary embodiments of the disclosure. It is apparent, however, that one or more embodiments can be practiced without these specific details. In other instances, well-known structures and devices are illustrated in a diagrammatic manner to simplify the drawings.

[0088] Base structure of a foldable packaging box

[0089] The disclosure provides a foldable packaging box. For example, referring to the exemplary embodiments shown in FIGS. 1A to 1 ID, 5A to 5D, 7A to 7D, and 9A to 9D, the foldable packaging box 100, 100A, 100B, 100C, 100D, 100E comprises: a foldable outer box body; and, a foldable inner packaging structure 9. According to the disclosure, for example, referring to the exemplary embodiments shown in FIGS. 12 to 18, the foldable inner packaging structure 9 is formed by densely packing a plurality of hollow densely packed units 2, the upper end 21 of the densely packed units 2 is open and comprises a plurality of walls 23, at least one of the plurality of walls 23 is provided with a weakness 24 arranged in the height direction, and the wall 23 is formed of a tearable material. According to the disclosure, the foldable inner packaging structure 9 is combined to the foldable outer box body, so that the foldable inner packaging structure 9 and the foldable outer box body are formed into an integrated structure. According to the disclosure, before the foldable packaging box is put into 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 put into 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.

[0090] The term "folded and 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 is folded flat according to the predetermined design creases thereof before being put into 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 is unfolded according to the predetermined design creases thereof after being put into 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 disclosure, when the foldable packaging box is in the 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 FIGS. 1A to 1D, 5A to 5D, 7A to 7D, and 9A to 9D, the height of the foldable outer box body is equal to the height of the foldable inner packaging structure; while in the exemplary embodiments shown in FIGS. 3A to 3D, the height of the foldable outer box body is greater than the height of the foldable inner packaging structure.

[0091] 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 used to make the foldable outer box and / or the foldable inner packaging structure include, but are not limited to, paper, plastic, plastic sheet, corrugated board, kraft paper, and the like.

[0092] According to the present disclosure, at least a portion of the foldable outer box is fixedly joined to the foldable inner packaging structure. It should be understood that the at least a portion of the foldable outer box can be fixedly joined to the foldable inner packaging structure in any manner known in the art, including but not limited to, for example, heat sealing, welding, crimping, bonding, adhering, and the like, as well as any combination of these methods.

[0093] In the illustrated exemplary embodiments of the present disclosure, the foldable packaging box generally assumes a substantially rectangular shape when in the erected state. For ease of description and illustration, with respect to the foldable outer box assuming a rectangular shape when in the erected state as presented in the drawing paper plane, the panel of the outer box facing the reader is defined as the front panel, the panel opposite to the front panel is defined as the back panel, the panel to the left of the front panel and the back panel is defined as the left side panel, and the panel to the right of the front panel and the back panel is defined as the right side panel. In addition, in some illustrated exemplary embodiments, the panel above the front panel and the back panel is defined as the upper panel, and the panel below the front panel and the back panel is defined as the lower panel. In addition, in some illustrated exemplary embodiments, there are outer side panels outside the aforementioned front panel, back panel, left side panel, right side panel, upper panel, and lower panel, and are defined as front outer panel, back outer panel, left outer panel, right outer panel, upper outer panel, and lower outer panel, respectively. It should be noted that the specific shape of the foldable packaging box provided by the present disclosure is not limited thereto, and can be, for example, a cylindrical shape or other polygonal solid shape, and the like.

[0094] According to embodiments of the present disclosure, the foldable outer box body has a rectangular cuboid shape when in the cuboid state. For example, referring to the exemplary embodiments shown in FIGS. 1A-1 ID, the foldable outer box body includes at least front panels 11A, 11B, 11C, 11D, 11E, left side panels 13A, 13B, 13C, 13D, 13E, a rear panel 12A, 12B, 12C, 12D, 12E, and right side panels 14A, 14B, 14C, 14D, 14E connected in sequence. According to the present disclosure, at least one of the front panels and the rear panel is fixedly joined to the foldable inner packaging structure. In the exemplary embodiments shown, both the front panels 11A, 11B, 11C, 11D, 11E and the rear panel 12A, 12B, 12C, 12D, 12E are fixedly joined to the foldable inner packaging structure 9. Of course, in other embodiments not shown, at least one of the left side panels and the right side panels can be fixedly joined to the foldable inner packaging structure.

[0095] According to the present disclosure, the most basic configuration of the foldable packaging box is that the foldable inner packaging structure and the foldable outer box body are fixedly joined as an integrated configuration to meet the expectations of the industry for packaging structures and packaging box bodies of articles. Below, various design schemes of the foldable outer box body and specific structures of the foldable inner packaging structure will be described and explained in the manner of exemplary embodiments shown.

[0096] Various exemplary embodiments of the foldable packaging box

[0097] First exemplary embodiment

[0098] FIGS. 1A-1D are structural schematic diagrams showing a foldable packaging box according to a first exemplary embodiment of the present disclosure, in which FIG. 1A shows the foldable packaging box in a folded and compressed state, FIG. 1B shows the foldable packaging box in a substantially 50% unfolded cuboid state, FIG. 1C shows the foldable packaging box in a substantially 100% unfolded cuboid state, and FIG. 1D shows the foldable packaging box in a closed cuboid state. FIG. 2 is an operation flow diagram showing the entire process of the foldable packaging box shown in FIGS. 1A-1D from the folded and compressed state to the closed cuboid state. It should be noted that in FIG. 2 and FIGS. 4, 6, 8, and 10 to be described later, the arrows with circles represent the operation sequence of the foldable packaging box from the folded and compressed state to the closed cuboid state, and the solid / hollow arrows represent the unfolding / closing manner of the foldable outer box body 10A and the foldable inner packaging structure 9 during the operation.

[0099] Referring to FIGS. 1A to 1D and 2, the foldable packaging box 100A according to the first exemplary embodiment includes a foldable outer box body 10A and a foldable inner packaging structure 9 which is combined to the foldable outer box body 10A so that the foldable inner packaging structure 9 and the foldable outer box body 10A are formed in an integrated configuration. Specifically, as in the embodiment shown in FIGS. 1A to 1D, both the front panel 11A and the rear panel 12A are fixedly combined to the foldable inner packaging structure 9 by adhesion or the like.

[0100] In the present 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 side panel 13A, and a right side panel 14A. Specifically, the front panel 11A and the rear panel 12A are combined to the 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 connected between the front panel 11A and the rear panel 12A, respectively, the lower panel 16A is connected between the front panel 11A and the rear panel 12A, and the left outer panel 130A and the right outer panel 140A are connected to the lower panel 16A, respectively. Further, the left outer panel 130A, the right outer panel 140A, the left side panel 13A, the right side panel 14A, and the lower panel 16A are each formed with a center fold line 8A. More specifically, the center fold lines of the left outer panel 130A, the right outer panel 140A, and the lower panel 16A are the same fold line as shown in FIG. 1A.

[0101] According to the above exemplary embodiments of the present disclosure, as shown in FIGS. 1C and 1D, in the erected state, the left outer panel 130A can be combined to the left side panel 13A by adhesion, and the right outer panel 140A can be combined to the right side panel 14A by adhesion.

[0102] The foldable packaging box 100A according to the first exemplary embodiment shown in FIGS. 1A to 1D and 2 can also be referred to as a "gift box type foldable packaging box".

[0103] Second Exemplary Embodiment

[0104] FIGS. 3A to 3D are structural schematic views showing a foldable packaging box according to a second exemplary embodiment of the present disclosure, in which FIG. 3A shows the foldable packaging box in a folded and compressed state, FIG. 3B shows the foldable packaging box in a substantially 50% unfolded state, FIG. 3C shows the foldable packaging box in a substantially 100% unfolded state, and FIG. 3D shows the foldable packaging box in a closed state. FIG. 4 is an operation flowchart showing the entire process of the foldable packaging box shown in FIGS. 3A to 3D from the folded and compressed state to the closed state.

[0105] Referring to FIGS. 3A to 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 combined to the foldable outer box body 10B so that the foldable inner packaging structure 9 and the foldable outer box body 10B are formed in an integrated configuration. Specifically, as shown in FIGS. 3A to 3D, the foldable outer box body 10B includes a front panel 11B, a rear panel 12B, an upper panel 15B, a front wing panel 111B, a lower panel 16B, a left outer panel 130B, a right outer panel 140B, a left side panel 13B, a right side panel 14B, a left wing panel 131B, and a right wing panel 141B. The front panel 11B and the rear panel 12B are combined to the foldable inner packaging structure 9. The upper panel 15B is connected to the rear panel 12B, the left side panel 13B and the right side 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 side panel 13B, the right side panel 14B, and the lower panel 16B are each formed with a center fold line 8B.

[0106] According to the above-described embodiments of the present disclosure, in the unfolded state, the front wing panel 111B, the left wing panel 131B, and the right wing panel 141B are inserted into the inside of the front panel 11B, the left side panel 13B, and the right side panel 14B, respectively.

[0107] According to the above-described embodiments of the present disclosure, the center fold lines of the left outer panel 130B, the right outer panel 140B, and the lower panel 16B are the same fold line.

[0108] According to the above-described embodiments of the present disclosure, as shown in FIGS. 3C and 3D, in the unfolded state, the left outer panel 130B can be combined to the left side panel 13B by an adhesive method, and the right outer panel 140B can be combined to the right side panel 14B by an adhesive method.

[0109] 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.

[0110] The foldable packaging box 100B according to the second exemplary embodiment shown in Figs. 3A to 3D and Fig. 4 can also be referred to as a “clamshell type foldable packaging box”.

[0111] Third exemplary embodiment

[0112] Figs. 5A to 5D are structural schematic views showing a foldable packaging box according to a third exemplary embodiment of the present disclosure, in which Fig. 5A shows the foldable packaging box in a folded and compressed state, Fig. 5B shows the foldable packaging box in a substantially 50% unfolded state, Fig. 5C shows the foldable packaging box in a substantially 100% unfolded state, and Fig. 5D shows the foldable packaging box in a closed state. Fig. 6 is an operation flowchart showing the entire process of the foldable packaging box shown in Figs. 5A to 5D from the folded and compressed state to the closed state.

[0113] Referring to Figs. 5A to 5D and Fig. 6, the foldable packaging box 100C according to the third exemplary embodiment includes a foldable outer box 10C and a foldable inner packaging structure 9, the foldable inner packaging structure 9 being coupled to the foldable outer box 10C such that the foldable inner packaging structure 9 and the foldable outer box 10C are formed in an integrated configuration. As shown in Figs. 5A to 5D, the foldable outer box 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 coupled to the foldable inner packaging structure 9, the left side panel 13C and the right side panel 13C are connected between the front panel 11C and the rear panel 12C, respectively, the front upper panel 150C and the front lower panel 160C are connected to the front panel 11C, respectively, the rear upper panel 151C and the rear lower panel 161C are connected to the rear panel 12C, respectively, the left upper panel 130C and the left lower panel 131C are connected to the left side panel 13C, respectively, and the right upper panel 140C and the right lower panel 141C are connected to the right side panel 14C, respectively. The left upper panel 130C, the left lower panel 131C, and the left side panel 13C are formed with a same left side center folding line 81C, and the right upper panel 140C, the right lower panel 141C, and the right side panel 14C are formed with a same right side center folding line 82C.

[0114] According to the above-mentioned embodiments of the present disclosure, in the three-dimensional state, as shown in FIGS. 5C and 5D, the front upper panel 150C and the rear upper panel 160C jointly constitute a first upper panel, the left upper panel 130C and the right upper panel 140C jointly constitute a second upper panel, 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 a first lower panel, the left lower panel 131C and the right lower panel 141C jointly constitute a second lower panel, one of the first lower panel and the second lower panel covers the other. In the illustrated exemplary embodiments, 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, i.e. the area of both is half of the area of the entire upper panel. However, in other embodiments not illustrated, the areas of the two can also be different.

[0115] The foldable packaging box 100C according to the third exemplary embodiments shown in FIGS. 5A to 5D and FIG. 6 can also be referred to as a “0201 box type foldable packaging box”.

[0116] Fourth exemplary embodiments

[0117] FIGS. 7A to 7D are structural schematic diagrams showing a foldable packaging box according to the fourth exemplary embodiments of the present disclosure, wherein FIG. 7A shows the foldable packaging box in a folded and compressed state, FIG. 7B shows the foldable packaging box in a substantially 50% unfolded three-dimensional state, FIG. 7C shows the foldable packaging box in a substantially 100% unfolded three-dimensional state, and FIG. 7D shows the foldable packaging box in a closed three-dimensional state. FIG. 8 is an operation flow chart showing the entire process of the foldable packaging box shown in FIGS. 7A to 7D from the folded and compressed state to the closed three-dimensional state.

[0118] Referring to FIGS. 7A to 7D and 8, the foldable packaging box 100D according to the fourth exemplary embodiment includes a foldable outer box body 10D and a foldable inner packaging structure 9 combined to the foldable outer box body 10D so that the foldable inner packaging structure 9 and the foldable outer box body 10D are formed in an integrated configuration. As shown in FIGS. 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 160D, 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 to the foldable inner packaging structure 9, the left side panel 13D and the right side panel 14D are connected between the front panel 11D and the rear panel 12D, respectively, the front upper panel 150D and the front lower panel 150D are connected to the front panel 11D, respectively, the rear upper panel 160D and the rear lower panel 161D are connected to the rear panel 12D, respectively, the left upper panel 130D and the left lower panel 131D are connected to the left side panel 13D, respectively, and the right upper panel 151D and the right lower panel 161D are connected to the right side panel 14D, respectively. The left upper panel 130D, the left lower panel 131D, and the left side panel 13D are formed with a same left side central fold line 81D, and the right upper panel 140D, the right lower panel 141D, and the right side panel 14D are formed with a same right side central fold line 82D.

[0119] According to the above-described embodiments of the present disclosure, as shown in FIGS. 7C and 7D, in the 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 collectively constitute a third upper panel, the first upper panel and the second upper panel are overlaid on the third upper panel, and one of the first upper panel and the second upper panel is overlaid 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 collectively constitute a third lower panel, the first lower panel and the second lower panel are overlaid on the third upper panel, and one of the first lower panel and the second lower panel is overlaid on the other.

[0120] According to the above-described embodiments 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.

[0121] The foldable packaging box 100D according to the fourth exemplary embodiment shown in FIGS. 7A to 7D and 8 can also be referred to as a “0203 box-type foldable packaging box”.

[0122] Fifth Exemplary Embodiment

[0123] FIGS. 9A to 9D are structural schematic views showing a foldable packaging box according to a fifth exemplary embodiment of the present disclosure, in which FIG. 9A shows the foldable packaging box in a folded and compressed state, FIG. 9B shows the foldable packaging box in a substantially 50% unfolded perspective state, FIG. 9C shows the foldable packaging box in a substantially 100% unfolded perspective state, and FIG. 9D shows the foldable packaging box in a closed box perspective state. FIG. 10 is an operation flowchart showing the entire process of the foldable packaging box shown in FIGS. 9A to 9D from the folded and compressed state to the closed box perspective state.

[0124] Referring to FIGS. 9A to 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, which is combined to the foldable outer box body 10E so that the foldable inner packaging structure 9 and the foldable outer box body 10E are formed in an integrated configuration. As shown in FIGS. 9A to 9D, the foldable outer box body 10E includes a first outer box body portion 100E and a second outer box body portion 100’ which are separated from each other. Specifically, the first outer box body portion 100E includes a front panel 11E, a rear panel 12E, a left side panel 13E, a right side panel 14E, a left outer side panel 130E, a right outer side panel 140E, and a lower panel 16E. The front panel 11E and the rear panel 12E are combined to the foldable inner packaging structure 9, the left side panel 13E and the right side panel 14E are connected between the front panel 11E and the rear panel 12E, respectively, the lower panel 16E is connected between the front panel 11E and the rear panel 12E, and the left outer side panel 130E and the right outer side panel 140E are connected with the lower panel 16E, respectively. The left side panel 13E and the right side panel 14E are formed with a center folding line 81E, respectively, and the left outer side panel 130E, the right outer side panel 140E, and the lower panel 16E are formed with a center folding line 82E, respectively.

[0125] According to the above-described embodiments of the present disclosure, the center folding lines of the left outer side panel 130E, the right outer side panel 140E, and the lower panel 16E are the same folding line.

[0126] According to the above-described embodiments of the present disclosure, as shown in FIGS. 9C and 9D, in the perspective state, the left outer side panel 130E can be combined to the left side panel 13E by an adhesive method, and the right outer side panel 140E can be combined to the right side panel 14E by an adhesive method.

[0127] In addition, in the foldable outer box 10E, the second outer box part 100' comprises: 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 with 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 sleeved to the first outer box part 100E in the three-dimensional state.

[0128] The foldable packaging box 100E according to the fourth exemplary embodiment shown in FIGS. 9A-9D and FIG. 10 can also be referred to as a "top-and-bottom cover type foldable packaging box".

[0129] Sixth exemplary embodiment

[0130] FIGS. 11A-11D are structural schematic diagrams showing a foldable packaging box assembly according to another exemplary embodiment of the present disclosure, wherein FIG. 11A shows a foldable packaging box in a folded and compressed state, FIG. 11B shows a foldable packaging box in a substantially 50% unfolded three-dimensional state, FIG. 11C shows a foldable packaging box in a substantially 100% unfolded three-dimensional state, and FIG. 11D shows a combination of one foldable packaging box in a three-dimensional state and another foldable packaging box in a three-dimensional state.

[0131] Referring to FIGS. 11A-11D, a foldable packaging box assembly according to another exemplary embodiment of the present disclosure comprises: at least two foldable packaging boxes 100, 100'. After the at least two foldable packaging boxes 100, 100' are delivered for use, the at least two foldable packaging boxes 100, 100' are respectively unfolded into a three-dimensional state and cooperated with each other to serve as packaging boxes for placing articles. In the exemplary embodiment shown in the drawings, one foldable packaging box 100 adopts the most basic structure of the foldable packaging box provided by the present disclosure, i.e., as shown in FIGS. 11A-11C, a foldable inner packaging structure 9 and a foldable outer box are fixedly combined into an integrated structure, and the foldable outer box comprises 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 fixedly combined to the foldable inner packaging structure 9. Further, as shown in FIG. 11D, another foldable packaging box 100' can adopt the same most basic structure as the aforementioned one foldable packaging box 100, or can 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 of the foldable packaging box 100' 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).

[0132] Various exemplary embodiments of the foldable inner packaging structure

[0133] The foldable inner packaging structure in the foldable packaging box provided by the present disclosure is formed by densely arranging a plurality of hollow densely packed units, the upper end and the lower end of the densely packed units are open and comprise a plurality of walls, wherein at least one of the plurality of walls is provided with a weak portion arranged in the height direction, and the wall is formed of a tearable material.

[0134] FIG. 12 is a perspective view of the foldable inner packaging structure 9 in the foldable packaging box according to one exemplary embodiment of the present disclosure. As shown in FIG. 12, the foldable inner packaging structure 9 of the present embodiment is formed by densely arranging a plurality of hollow densely packed units 2.

[0135] The term "densely packed" means that one or more planar patterns are spliced to fill a surface without leaving gaps or overlapping each other. The "densely packed unit" means a basic three-dimensional unit formed of one or more planar patterns, and the basic three-dimensional units are spliced to form a three-dimensional packaging. The densely packed unit can include, for example, an equilateral triangle densely packed unit, an equilateral quadrilateral densely packed unit, an equilateral hexagonal densely packed unit, etc. The packaging field usually uses single equilateral hexagonal densely packed units spliced to form a honeycomb structure, but it should be understood that, as described above, the present disclosure is not limited to single equilateral hexagonal densely packed units, but can include, for example, an equilateral triangle densely packed unit, an equilateral quadrilateral densely packed unit, or other densely packed units and combinations thereof.

[0136] As shown in FIG. 12, the upper end 20 of the densely packed unit 2 of the present embodiment is open and comprises a plurality of walls 23. In the present embodiment, the lower end 21 is also open, and it should be understood that the lower end can be provided to be closed. In addition, the use of directional terms herein (such as up and down) is relative, and the corresponding directional terms can be reversed depending on, for example, the use state. The intersection of the three walls forms a ridge 25. In the embodiment shown in FIG. 12, the densely packed unit 2 is provided as a single equilateral hexagonal densely packed unit or a honeycomb unit, so the densely packed unit 2 comprises six walls. Through the plurality of walls, the densely packed unit forms a hollow structure surrounded by the plurality of walls, which is provided so that the material can be greatly saved while ensuring the supporting function, and also has a relatively good cushioning function when subjected to extrusion or impact. In addition, the hollow structure also allows the densely packed unit to be folded under certain circumstances, facilitating storage and transportation. In other words, the hollow structure can allow the foldable inner packaging structure to be conveniently switched between the unfolded structure shown in FIG. 12 and the folded structure not shown.

[0137] Further, at least one of the plurality of walls 23 of the hollowed batt unit 2 is provided with a weak portion arranged in the height direction. In some example embodiments, each of the plurality of walls 23 of the batt unit 2 is provided with the aforementioned weak portion. In other example embodiments, the packaging structure further includes a plurality of additional hollowed batt units (not shown) that are open at the upper end and include a plurality of walls, wherein each of the plurality of walls of the plurality of additional hollowed batt units does not have a weak portion arranged in the height direction. That is, in the aforementioned other example embodiments, some of the hollowed batt units that make up the packaging structure are provided with a weak portion, and other hollowed batt units that make up the packaging structure are not provided with a weak portion.

[0138] The term "weak portion" refers to a portion that has been weakened in strength (e.g., tensile strength or compressive strength) relative to the rest of the portion. When a material is subjected to a tensile force or a compressive force, the material will first break or tear at the weak portion due to stress concentration at the weak portion. In the present embodiment, by providing a weak portion in the wall, when an article is pressed downward from above, the batt unit directly below the article will be subjected to a pressing force, and the wall below the edge of the article will be subjected to a tensile force relative to the portion that is not being pressed. Due to the presence of the weak portion, this tensile force will cause the wall to tear open. The stress on the batt unit and the weak portion when the foldable inner packaging structure is pressed will be analyzed below.

[0139] Herein, the weak portion can also include a cutout portion, a tear line, or the weak portion is made of a material having a different tear strength from the rest of the wall. The term "cutout portion" refers to a portion of the material of the wall that has been removed to weaken the wall. The cutout portion can include a hole, a slit, or the like.

[0140] In the present embodiment, the weak portion is provided 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 explicitly stated to be a circular hole. In the present disclosure, the hole can include a circular hole, an elliptical hole, a square hole, or the like. For a foldable inner packaging structure, it is relatively easy to perform a punching process, and therefore the manufacturing cost is relatively low.

[0141] FIG. 13 shows a front view of the foldable inner packaging structure 9 of one example embodiment of the present disclosure, from which the distribution of the holes 24 can be more clearly seen. As shown in FIG. 13, in the present embodiment, the holes 24 are provided in a plurality, and are provided on the walls of the batt unit in the height direction of the batt unit. In the present embodiment, the holes 24 are provided on all six walls of the batt unit, and it should be understood that the holes can be provided on one or more walls of the batt unit as needed.

[0142] The working principle of the foldable inner packaging structure 9 of the present application will be explained more clearly with reference to the force analysis diagram of the hexagonal close-packed unit shown in Fig. 14. In Fig. 14, a single hexagonal close-packed unit, i.e. a honeycomb close-packed unit, is taken as an example for analysis.

[0143] One of the major characteristics of the structure formed by the close-packed units is that it will be crushed when subjected to axial load. As shown in Fig. 14, when the upper part of the close-packed unit is subjected to pressure, the close-packed unit will have a tendency to fold or crush downward. The force represented by arrow F in Fig. 14 is the downward pressure acting on the edge (the intersection of three walls) of the close-packed unit.

[0144] Firstly, the deformation behavior when the force F is uniformly applied on all the close-packed units in Fig. 14 will be described. At this time, the force F on the upper part of all the close-packed 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 crushed and folded upper part will transmit the force to the middle and lower parts of the wall. The crushed and folded part of the wall has a larger force receiving area due to the crushing and folding, and also acts as a support, so that if the force needs to be transmitted further downward, a greater force needs to be applied. In this way, all the close-packed units in the same layer are crushed and folded synchronously. In fact, as the crushing proceeds, the required force also increases at a rate of almost doubling. Since the foldable inner packaging structure formed by the honeycomb close-packed units has the same structure in each layer and is approximately isotropic, the structure has good stability, and generally requires a greater force to be crushed. The weight of the commonly used articles placed on the honeycomb close-packed unit is not easy to deform the close-packed structure, and therefore the structure has good compression resistance and bending resistance.

[0145] Subsequently, the deformation behavior when the pressure F is applied on one or more close-packed units will be described. Since there is no downward pressure F on the adjacent close-packed units, when the wall of the close-packed unit subjected to the pressure F has a tendency to crush downward, a tendency of relative movement between the adjacent edges (for example, edges 250 and 251 shown in Fig. 14) occurs, so that the edge 251 not subjected to the pressure will generate a pulling force on the edge 250 subjected to the pressure, i.e. the wall 230 under the edge of the article will be subjected to a pulling force Fl in the direction away from the edge subjected to the force as shown in Fig. 14. The existence of this pulling force Fl makes it more difficult for the close-packed unit to be crushed, and therefore the foldable inner packaging structure formed by the honeycomb close-packed units can be suitable for supporting articles of various shapes, whether their area is greater than or smaller than the footprint of the foldable inner packaging structure.

[0146] In this embodiment, the walls of the packing unit are made of tearable material. As to the tearable material, paper or aramid paper can be used, for example. The tearable material will be likely to tear when subjected to shearing force, so there is a possibility that the walls 230 between the unpressured ridges 251 and the pressured ridges 251 will be torn by shearing force when pressure is applied on one or more packing units as described above. But since the walls of the packing unit usually have a certain supporting function, the packing unit will be crushed before it is torn. The walls of the packing unit can have a single-layer structure and / or a double-layer structure. Taking the walls of the packing unit using paper as an example, the walls of the single-layer structure are formed by one layer of paper, and the walls of the double-layer structure are formed by two layers of paper adhered to each other, and the cut-out part can be formed on the walls of the single-layer structure, on the walls of the double-layer structure, or on both the walls of the single-layer structure and the walls of the double-layer structure.

[0147] Referring to FIG. 14, since the pressured packing unit has a tendency to move downward, the pulling force F1 gradually changes from being horizontal to being inclined downward, and thus there will be a vertical component force in the crushing process, which will cause the surrounding unpressured packing units to be gradually crushed as well, thereby making the crushing behavior gradually spread in the horizontal direction. And in many cases, this crushing behavior in the horizontal direction occurs before the walls are torn, that is, the crushing behavior occurs before the pressure reaches the size that will cause the walls to be torn. That is, there is no clear tear zone between the pressured packing unit and the unpressured packing unit (in this document, the pressured and unpressured refer to whether direct pressure generated by the article or the like directly above the packing unit), and at best, a completely vertical tear is formed, so that the article cannot be smoothly pressed into the foldable inner packaging structure or the article cannot be well wrapped even if it is pressed into the foldable inner packaging structure, which will be described in more detail with reference to FIG. 17.

[0148] The applicant finds that by providing a weak part on the walls of the packing unit, when pressure F is applied on the packing unit, the walls under the edges of the article are easy to tear, so that the packing unit under the edges of the article is easy to separate from the surrounding packing units and be crushed and folded. And as can be known from the analysis of the crushing behavior of the packing unit as above, when the packing unit is crushed, the support below will gradually be stronger, and at this time, since the tear occurs at the weak part, the crushing behavior in the horizontal direction is prevented, and the surrounding packing units will form a surrounding structure, which can also play a good protective role.

[0149] The packing unit according to an embodiment of the disclosure will be described below with reference to FIG. 15, which is a top plan view of a packing unit according to one exemplary embodiment of the disclosure.

[0150] The stressed densely packed unit shown in Fig. 15 has been torn apart from the surrounding densely packed units. As shown in Fig. 15, due to the existence of the weak part, which will form a stress concentration point and easily cause tearing when stressed, the stressed densely packed unit and the adjacent densely packed unit are torn apart, eventually causing the densely packed units below the stressed area shown in Fig. 15 and the adjacent densely packed units to be completely torn apart.

[0151] Fig. 16 shows a schematic diagram of the use of the foldable inner packaging structure according to one exemplary embodiment of the present disclosure. As shown in Fig. 16, when an article is placed above the foldable inner packaging structure of the present embodiment and pressure is applied, the article will press down the densely packed units located thereunder, which will be crushed due to the pressure. And due to the existence of the weak part, the walls of the densely packed units under the edges of the article will be torn from their weak parts. With further pressing down of the article or increase in the crushing depth, the walls of the densely packed units directly below will be crushed and folded, while the already crushed and folded walls 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, the tearing of the weak part avoids the spread of crushing in the horizontal direction, so that the densely packed units separated from the densely packed units that have been crushed will still maintain their original shape due to the structural stability of the densely packed units themselves, thereby forming a containment space that is substantially close to the shape of the article to wrap the article. Thus, a good packaging of the article can be formed.

[0152] As can be seen from the above description, in the present embodiment, the densely packed structure is crushed in the vertical direction to form a recess for accommodating the product when stressed in the vertical direction. At the same time, the provision of the weak part on the wall of the densely packed structure avoids the spread of crushing of the densely packed structure in the horizontal direction, so that there will be a clear tearing zone between the densely packed units that are stressed and the densely packed units that are not stressed, thereby enabling a good wrapping of the article.

[0153] Generally, honeycomb structure or honeycomb paperboard is used for supporting objects, the applicant has for the first time found that honeycomb structure and honeycomb paperboard can be used for wrapping or packaging objects through theoretical analysis and experimental verification (the experiment will be described in detail below). And as mentioned above, since the honeycomb structure is crushed in the vertical direction, the object can be pressed into the honeycomb structure and still has good support at the bottom after being pressed. The setting of the weak part avoids the spread of the crushing of the honeycomb structure in the horizontal direction, so that the object can form a very good wrapping effect. In addition, the honeycomb structure of the embodiments of the present disclosure is simple in structure, easy to manufacture and very convenient to use. Only by pressing the object into the honeycomb structure is needed, there is no restriction on the shape of the object, and the honeycomb units not under pressure separate the objects after being pressed into different objects, which can protect the objects independently.

[0154] Returning to FIGS. 12 and 13 again, it can be seen that in the present embodiment, the holes 24 are arranged in multiple and 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. Larger size holes mean lower strength here, that is, more prone to tearing. Therefore, the holes with a size gradient decreasing in the height direction means that the crushing force and tearing force of each layer of honeycomb units are also gradient increasing. Therefore, under the action of the same pressure, the upper honeycomb units will be more easily crushed first, and the lower honeycomb units will need a larger force to be crushed subsequently. Therefore, when the object is pressed down, the upper part of the honeycomb unit first contacted with the object is crushed first, and is also more prone to tearing and separating from the surrounding honeycomb units. As the crushing proceeds, the honeycomb units that have been crushed will also be folded up, combined with the smaller size holes below, so that a larger force is needed to crush the lower honeycomb units. Thus, the holes arranged in a gradient can more effectively produce the effect of layer-by-layer crushing or progressive crushing in the height direction, avoiding the simultaneous or first deformation of other parts during the process of pressing the object into the foldable inner packaging structure, affecting the overall effect.

[0155] In the present embodiment, the gradient holes are arranged from the upper end of the wall in the height direction, but do not extend the entire height of the wall, that is, do not extend completely 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 arranged as needed. In the present embodiment, the holes are arranged at approximately the middle position in the width direction of the wall. It should be understood that the holes can also be arranged closer to either edge in the width direction of the wall.

[0156] The influence of the spacing of the holes, the shape of the holes, the grammage of the paper, the side length of the honeycomb hexagonal structure, etc. on the packaging of the object will be further discussed through experiments below.

[0157] First, a plurality of foldable inner packaging structure pieces were prepared for quasi-static compression test. In this embodiment, the foldable inner packaging structure pieces were of honeycomb structure. Regarding the quasi-static compression test, a carton compression tester GK-KY25 (commercially available from Suzhou Sutest Testing Group Co., Ltd.) was used, the compression speed was 1 mm / min, and the compression depth was determined based on the fact that the article was completely compressed into the honeycomb structure (at this time, the stress sharply increased). Regarding the article, it was a regular cylinder having a height of about 60 mm and a diameter of about 60 mm. Table 1 below shows the basic information of each sample:

[0158] Table 1

[0159] First, the parameter information is explained as follows.

[0160] Regarding the sample size, it indicates the length, width, and height of the foldable inner packaging structure piece. Regarding the cell arrangement, it indicates the number of longitudinal arrangement and the number of transverse arrangement of the cells. Regarding the cell side length, it indicates the side length of the hexagon of the honeycomb structure. Regarding the maximum and minimum cell diameters, it indicates the maximum and minimum longitudinal dimensions of the cells, for example, in the case of a circular hole, the maximum cell diameter indicates the maximum diameter of the hole, and the minimum cell diameter indicates the minimum diameter of the hole, in the case of an elliptical hole, the maximum cell diameter indicates the maximum diameter on the major axis of the hole, and the minimum cell diameter indicates the minimum diameter on the major axis of the hole. Regarding the cell pitch, it indicates the pitch between the adjacent edges of adjacent cells in the vertical direction. Regarding the paper grammage, it indicates the grammage of the paper constituting the honeycomb structure. In addition, it should be noted that the above comparison between samples should be understood as a comparison between different embodiments of the present application, and not as a comparison with the prior art, and the following test comparison should also be understood in the same way.

[0161] 1. First, the effect of the cell side length will be discussed. The cell side length of the honeycomb structure mainly affects the tightness of the article being wrapped, the smaller the cell side length, the better the effect of the article being wrapped. Fig. 6 shows a top view of the honeycomb structure, and the shaded part in the figure is the honeycomb cell located directly below the test article.

[0162] It can be seen that, in an ideal case, let the top view area of the test article be S, the number of honeycomb cells located directly below it be m, and the number of honeycomb cells covered by the edges be n. When the article is compressed into the honeycomb structure, as mentioned above, the walls of the honeycomb cells located below the edges of the article are torn. Therefore, the number of honeycomb cells that are crushed and torn is (m+n), and the area of these honeycomb cells can be represented as S1, that is, S1 = (m+n) x S honeycomb cell, and a = S / S1 can be defined to represent the tightness of the article being wrapped, and in addition, the cell side length of the honeycomb cell is defined as l, and according to the simple geometric relationship, we can get:

[0163] It is clear that the smaller the l, the larger the a, and the more tightly the article is wrapped, i.e. the better the wrapping effect. However, l should not be too small, because if l is too small, it will be difficult to produce the honeycomb structure. Specifically, if l is less than 4 mm, the tensile force during production will be higher than the interlayer bonding force that the paper can withstand, causing the paper to break.

[0164] Therefore, through theoretical derivation and testing, it is appropriate to set the unit side length in the range of 5 mm to 12 mm. Preferably, the unit side length can be set to 10 mm. In the above samples, 10 mm (with or without a range) is used as the unit side length.

[0165] In addition, it should be understood that the disclosure is not limited to a side length of 10 mm, and other appropriate unit side lengths can also be used according to actual conditions, as long as they do not violate the above theories in the disclosure.

[0166] 2. The effects of the size and spacing of the holes and the grammage of the paper on the crushing behavior and the tearing behavior will be further discussed below. The size and spacing of the holes and the grammage of the paper all affect the ease of crushing of the honeycomb structure, and therefore, the three together determine the ease of crushing of the honeycomb structure. As mentioned above, the packaging of the article in the disclosure is achieved by the layer-by-layer crushing or progressive crushing of the honeycomb cells below the article and the tearing of the wall below the edge of the article (or between the honeycomb cell below the edge of the article and the adjacent honeycomb cell). The larger the size of the holes, the lower the strength of the honeycomb cell, and the easier the tearing behavior. The smaller the size of the holes, the higher the strength of the honeycomb cell, and the more difficult the tearing behavior. The larger the spacing of the holes, the higher the strength of the honeycomb cell, and the more difficult the tearing behavior. The smaller the spacing of the holes, the lower the strength of the honeycomb cell, and the easier the tearing behavior. The smaller the grammage of the paper, the lower the strength of the honeycomb cell, and the easier the tearing behavior and the crushing behavior. The larger the grammage of the paper, the higher the strength of the honeycomb cell, and the more difficult the tearing behavior and the crushing behavior. Therefore, in order to ensure the generation of the tearing behavior and the crushing behavior, the size of the holes should not be too small, the spacing between the holes should not be too large, and the grammage of the paper should not be too high, otherwise, it will be difficult to produce crushing, and more importantly, the tearing of the honeycomb cell will be too difficult during crushing, and the honeycomb structure may be crushed as a whole (i.e. the layer-by-layer crushing effect cannot be achieved) before the paper tears, resulting in the deformation of the honeycomb cells outside the article, i.e. the horizontal spread of the crushing behavior instead of the tearing behavior. However, the size of the holes should not be too large, the spacing between the holes should not be too small, and the grammage of the paper should not be too small, in order to ensure the basic support function.

[0167] First, the test results of sample A and sample C in Table 1 are compared. For sample A and sample C, the conditions are the same except that the minimum aperture and the cell pitch are different. Specifically, the cell pitch of sample A is set to 7mm, while the cell pitch of sample C is set to a larger 14mm. The test results show that sample A can press the articles into the honeycomb structure more smoothly, while sample C has difficulty in pressing the articles into the honeycomb structure. Therefore, it can be seen that too large cell pitch will result in difficulty in generating tearing behavior.

[0168] Further, the test results of sample A and sample B are compared. For sample A and sample B, the conditions are the same except that the shape of the hole and the maximum aperture are different. Specifically, the shape of the hole of sample A is circular, and the maximum aperture is 4.5mm, while the shape of the hole of sample B is elliptical, and the maximum aperture is 5mm. It is found through testing that both sample A and sample B can generate relatively good crushing behavior and tearing behavior.

[0169] Then, sample D and sample E are further compared. For sample D and sample E, the conditions are the same except that the paper grammage is different. Specifically, the paper grammage of sample D is 110g / m 2 , while the paper grammage of sample E is 170g / m 2 . It is found through testing that paper with a grammage of 110g / m 2 and 170g / m 2 can also generate good crushing behavior and tearing behavior under suitable conditions.

[0170] As shown above, only five representative samples are listed for data comparison. The applicant has found the following parameter settings through a series of theoretical derivations and experimental comparisons. The paper grammage range can be set to between 110g / m 2 and 170g / m 2 . Further, the paper grammage range can be set to between 110g / m 2 and 140g / m 2 . The cell length of the honeycomb cell can be set to between 5mm-12mm, optionally between 6mm-15mm, optionally between 7mm-14mm, and optionally between 8mm-12mm. When the cell length of the honeycomb cell is 5mm, the gradient diameter range of the hole (i.e., the maximum aperture and the minimum aperture which decrease along the height direction) can be set to 1mm-2.5mm. When the cell length of the honeycomb cell is 12mm, the gradient diameter range of the hole can be set to 2mm-5mm. The distance between the edges of adjacent holes can be set to 10%-200% of the maximum aperture.

[0171] Next, the uniformity of the holes, the relationship between the maximum hole diameter and the unit length, and the effect of the number of walls of the holes on the packaging of the article will be further discussed through experiments.

[0172] Similar to the previous experiment, a plurality of foldable inner packaging structure members were first prepared for quasi-static compression testing. In this embodiment, the foldable inner packaging structure member adopts a honeycomb structure. The test uses a paper box compression testing machine GK-KY25 (available from Suzhou Sutest Testing Group Co., Ltd.), with a compression speed of 1 mm / min, and the compression depth is determined by the complete compression of the article into the honeycomb structure (at this time, the 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. As shown in Table 2 below, the basic information of each sample is shown:

[0173] Table 2

[0174] The same parameters shown in Table 2 have the same meaning as the parameters shown in Table 1, and are not repeated here. In addition, for the relationship between the maximum hole diameter and the minimum hole diameter, taking sample F as an example, the same maximum hole diameter and minimum hole diameter means that the size of the holes provided on the wall is the same, that is, holes of the same size are provided. The number of walls with holes is the number of walls with holes in the six walls of the honeycomb unit.

[0175] First, compare sample F and sample G. For sample F and sample G, sample F has holes of the same size, while sample G has gradient holes, specifically, the size of the holes gradually decreases in the downward direction from the upper end of the wall. By comparing, it is found that in sample F, when the article is compressed, the honeycomb unit at the bottom also has a crushing phenomenon. In contrast, in sample G, by providing gradient holes, the honeycomb unit at the bottom does not have a crushing phenomenon. According to the foregoing analysis, the gradient holes can more effectively produce a layer-by-layer crushing effect in the height direction, avoiding the crushing phenomenon at the bottom during the compression of the article into the honeycomb structure, thereby affecting the overall effect.

[0176] Next, compare sample H and sample I. For sample H and sample I, except for the maximum hole diameter and the minimum hole diameter (or the hole diameter gradient range), the other conditions are the same. Specifically, the hole diameter gradient range of sample H is 4.5 mm-2 mm, and the hole diameter gradient range of sample I is 3 mm-0.5 mm. By comparing, it is found that although sample H and sample I can both produce crushing behavior and tearing behavior, sample H also has a certain collapse phenomenon of the honeycomb unit around the article, that is, the crushing behavior has a small range of spread in the horizontal direction, which makes the packaging effect of sample H after the article is compressed worse. In sample I, there is no crushing spread in the horizontal direction, so the packaging effect of sample I after the article is compressed is better.

[0177] Finally, sample J and sample K will be compared. For sample J and sample K, the conditions are the same except for the number of walls with holes. Specifically, in sample J, holes are provided in all six walls, and in sample K, holes are provided in only two walls. Through comparison, it is found that although both sample J and sample K can produce crushing behavior and tearing behavior, in sample J, the collapse of the honeycomb cells around the article occurs, and the tearing behavior of the walls without holes is also poor. This shows that the crushing behavior of sample J produces horizontal spreading, which makes the wrapping effect after the article is pressed into sample J poor. In sample K, horizontal crushing spreading does not occur, and because holes are provided in all six walls, the tearing behavior is also good, making the wrapping effect after the article is pressed into sample K better.

[0178] Through comparison of the experiments in Table 2, it can be seen that the crushing behavior of the gradiently arranged holes is better than that of the uniformly distributed holes, and the gradiently arranged holes can produce good layer-by-layer crushing behavior, which is consistent with the foregoing analysis. In addition, the applicant found through experiments that when the maximum hole diameter is less than 30% of the cell side length of the honeycomb cells, horizontal crushing spreading is prone to occur, making the honeycomb cells around the article easy to deform, resulting in poor wrapping. When the maximum hole diameter is greater than 40% of the cell side length of the honeycomb cells, horizontal crushing spreading can be well weakened. In addition, the more the number of walls with holes, the more prone the crushing behavior and tearing behavior are to occur, and the more easily horizontal crushing spreading can be prevented. Therefore, in the present disclosure, the maximum hole diameter is set to be greater than 40% of the cell side length of the honeycomb cells. Further, it is preferred that holes are provided on all six walls.

[0179] In addition, in the present embodiment, the honeycomb cells are constructed by paper-based tearable materials, and the overall structure is 100% green and recyclable. At the same time, because the paper-based tearable materials do not have elasticity, a permanent structure for protecting the article can be formed, which can better provide corresponding protection for the article.

[0180] Next, a description of the foldable inner packaging structure in 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 foregoing one embodiment. Therefore, in the foldable inner packaging structure in this other exemplary embodiment, a description of components having the same function and structure as those of the foldable inner packaging structure in the foregoing one exemplary embodiment will be omitted.

[0181] 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 one 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, for example by adhesion or the like. 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 as to better play a supporting role. When it is needed to fold the foldable inner packaging structure for transportation, 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 in use.

[0182] As can be seen from the above, according to the foldable inner packaging structure provided in one or more embodiments of the present disclosure, a honeycomb structure is adopted, which is formed by densely arranging a plurality of hollow honeycomb cells, the upper end and the lower end of the honeycomb cells 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 manner in the height direction from the upper end to the lower end and gradually decreasing in size. The honeycomb structure ensures that it can play a certain supporting role and can produce a crushing behavior when subjected to pressure. The walls are formed of paper to ensure that the walls can produce a tearing behavior when subjected to tension. The arrangement of the holes ensures that the walls are more prone to tearing at the holes. The gradient arrangement of the holes ensures the occurrence of layer-by-layer crushing and tearing behavior, reducing or avoiding the spread of crushing in the horizontal direction.

[0183] According to alternative embodiments 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 one of the plurality of walls 23 of the plurality of hollow packed cells 2 is provided with a transverse weakness 80. For example, the wall provided with the transverse weakness 80 can be the wall of the hollow packed cell 2 located at the peripheral side of the plurality of hollow packed cells 2. According to some embodiments, the transverse weakness 80 can be configured as at least one transverse line 80 arranged in a direction perpendicular to the height direction. In the embodiment shown in FIG. 19A, the transverse line 80 penetrates all the plurality of hollow packed cells 2 of the packaging structure 9 in a direction perpendicular to the height direction of the packed cells, i.e., at least one wall of each of the three layers of hollow packed cells shown is cut by the transverse line. As shown in FIG. 19B, in the example where the foldable packaging box comprises the foldable outer box body 10 and the packaging structure 2 as shown in FIG. 19A, when the article P is placed above the packaging structure 2 and pressure is applied, the article will press down the packed cells located below it, and the packed cells located below the article will be crushed due to the pressure. In an embodiment not shown, the transverse line 80 can also not penetrate all the packed cells 2 in a direction perpendicular to the height direction of the packed cells, for example, only 50% of the packed cells, and the remaining 50% of the packed cells do not have the transverse line on the wall, i.e., assuming there are 10 layers of packed cells, the transverse line 80 only cuts the walls of 5 layers of packed cells 2 in a direction perpendicular to the height direction of the packed cells, and does not cut the walls of the remaining 5 layers of packed cells 2. In this way, when the article is pressed into the packaging structure along the transverse line, the upper 5 layers of packed cells are compressed, while the lower 5 layers of packed cells are not compressed, thereby providing good cushioning for the packaging protection of the article. It should be noted that the configuration of the foldable inner packaging structure 9 described in the alternative embodiments shown in FIGS. 19A and 19B can also be incorporated into the various exemplary embodiments shown in FIGS. 1 to 18, unless there is a conflict in structure and / or function. For example, in the incorporated scheme, the packed cells 2 located in the middle of the inner packaging structure 9 can adopt the cut-out design described in the various exemplary embodiments shown in FIGS. 1 to 18, and the packed cells 2 located at the peripheral side adopt the transverse line design described in the alternative embodiments shown in FIGS. 19A and 19B.

[0184] The dimensions and values described herein are not to be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise specified, each such dimension is intended to mean both the recited value and functionally equivalent values within a range surrounding that value. For example, a dimension disclosed as "10 mm" is intended to mean "about 10 mm."

[0185] While some embodiments of the disclosure have been shown and described, it will be understood by those of ordinary skill in the art that changes can be made hereto without departing from the principles and spirit of the disclosure, the scope of which is defined by the claims and their equivalents.

Claims

1. A foldable packaging box, the foldable packaging box comprising: Foldable outer box; and A foldable inner packaging structure is formed by closely laying together multiple hollow tiling units, the upper end of each tiling unit being open and including multiple walls, wherein at least one of the multiple walls is provided with a weak portion arranged along the height direction, and the wall is formed of a tearable material. The foldable inner packaging structure is integrated with the foldable outer box, so that the foldable inner packaging structure and the foldable outer box form an integrated structure. Before the foldable packaging box is delivered for use, the foldable inner packaging structure and the foldable outer box are folded into a compressed state; after the foldable packaging box is delivered for use, the foldable inner packaging structure and the foldable outer box are unfolded into a three-dimensional state to be used as a packaging box for placing items.

2. The foldable packaging box according to claim 1, wherein, At least a portion of the foldable outer box is fixedly attached to the foldable inner packaging structure.

3. 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 is equal to or greater than the height of the foldable inner packaging structure.

4. The foldable packaging box according to claim 1, wherein, The weak portion is configured as a cut-off portion on the wall, and the cut-off portion is provided in one or more forms along the height direction of the wall; Wherein, the size of the one or more cut-off portions gradually decreases downwards along the height direction from the upper end of the tiled unit, forming a gradient; and / or Wherein, the one or more cutting portions are disposed along the height direction of the wall, and the cutting portions are disposed at an intermediate position along the width direction of the wall; and / or The one or more cut-out portions are located at the middle position along the width direction of the wall.

5. The foldable packaging box according to claim 4, wherein, The densely packed unit is a hexagonal honeycomb unit, the walls of the honeycomb unit are formed of paper, and the cut-out portion is configured as a hole formed in the wall.

6. The foldable packaging box according to claim 4, wherein, The side length of the honeycomb unit is set between 5mm and 12mm, and the gradient diameter of the hole is within the range of 1mm to 5mm. Wherein, when the side length of the honeycomb unit is 5mm, the gradient diameter of the hole is set to a range of 1mm-2.5mm; In the case where the side length of the honeycomb unit is 12mm, the gradient diameter range of the holes is set to 2mm-5mm.

7. The foldable packaging box according to claim 5, wherein, The hole is at least one of the following: round hole, elliptical hole, rectangular hole, and square hole.

8. The foldable packaging box according to claim 5, wherein, Each of the plurality of walls is provided with the weak portion; and / or The lower end of the packaging structure is open.

9. The foldable packaging box according to claim 4, wherein, The densely packed cells are hexagonal honeycomb cells, the walls of which are formed of paper. The cut-out portions are constructed as slits, the length of which is set between 1% and 90% of the height of the honeycomb cells; 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 that is detachably attached to the bottom.

10. The foldable packaging box according to any one of claims 1-9, wherein, The foldable outer box includes at least a front panel, a left panel, a rear panel, and a right panel connected in sequence; At least one of the front panel and the rear panel is fixedly attached to the foldable inner packaging structure.

11. The foldable packaging box according to claim 10, wherein, The foldable outer box further includes: the front panel, the rear panel, the top panel, the front outer panel, the bottom panel, the left outer panel, the right outer panel, the left panel, and the right panel; The front panel and the rear panel are combined into the inner foldable inner packaging structure; The front outer panel is connected to the upper panel, the upper panel is connected to the rear panel, the left side panel and the right side 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. The left outer panel, the right outer panel, the left panel, the right panel, and the bottom panel all have a central fold line.

12. The foldable packaging box according to claim 10, wherein, The foldable outer box further includes: the front panel, the rear panel, the upper panel, the front wing plate, the lower panel, the left outer panel, the right outer panel, the left panel, the right panel, the left wing plate, and the right wing plate; The front panel and the rear panel are integrated into the foldable inner packaging structure. The upper panel is connected to the rear panel, the left side panel and the right side 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, the left wing and the right wing are respectively connected to the upper panel. The left outer panel, the right outer panel, the left panel, the right panel, and the bottom panel all have a central fold line.

13. The foldable packaging box according to claim 10, wherein, The foldable outer box 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. The front panel and the rear panel are integrated into 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. The upper right panel and the lower right panel are respectively connected to the right side panel; The upper left panel, the lower left panel, and the left side panel form the same left center fold line, and the upper right panel, the lower right panel, and the right side panel form the same right center fold line.

14. The foldable packaging box according to claim 10, wherein, The foldable outer box 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. 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. The right upper panel and the right lower panel are respectively connected to the right side panel. The upper left panel, the lower left panel, and the left side panel form the same left center fold line, and the upper right panel, the lower right panel, and the right side panel form the same right center fold line.

15. The foldable packaging box according to claim 10, wherein, The foldable outer box further includes: a first outer box portion and a second outer box portion that are separate from each other; The first outer box portion includes: the front panel, the rear panel, the left side panel, the right side panel, the left outer panel, the right outer panel, and the bottom panel; The front panel and the rear panel are combined to 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. The left panel and the right panel each have a central fold line, and the left outer panel, the right outer panel and the bottom panel each have a central fold line. The second outer box body includes: an upper cover, a front cover, a rear cover, a left cover, and a right cover; 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. The second outer box portion is configured to be separably fitted onto the first outer box portion in a three-dimensional state.

16. The foldable packaging box according to any one of claims 1 to 15, wherein the foldable inner packaging structure is configured such that the upper ends of the plurality of tiling units face vertically, such that the foldable packaging box is suitable for placing articles on the upper ends of one or more of the plurality of tiling units during use; or The foldable inner packaging structure is configured such that the upper ends of the plurality of tiling units face horizontally, so that the foldable packaging box is suitable for placing items on the walls of one or more of the plurality of tiling units when in use.

17. 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 unfolded into a three-dimensional state and cooperate with each other to be used as packaging boxes for placing items.

18. A packaging structure formed by a plurality of hollow, closely spaced units, the upper end of each closely spaced unit being open and including 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.

19. The packaging structure according to claim 18, wherein, The weak part is constructed as a cut-off section on the wall.

20. The packaging structure according to claim 19, wherein, The cut-off portion is provided in one or more forms along the height direction of the wall.

21. The packaging structure according to any one of claims 18-20, wherein, The densely packed unit is a hexagonal honeycomb-shaped unit.

22. The packaging structure according to claim 21, wherein, The walls of the honeycomb cells are made of paper.

23. The packaging structure according to claim 21, wherein, The cut-off portion is constructed to form a hole.

24. The packaging structure according to claim 23, wherein, The side length of the honeycomb unit is set between 5mm and 12mm, optionally between 6mm and 15mm, optionally between 7mm and 14mm, optionally between 8mm and 12mm, optionally greater than 4mm, and optionally 10mm.

25. The packaging structure according to claim 23, wherein, The gradient diameter of the hole is within the range of 1mm-5mm.

26. The packaging structure according to claim 25, wherein, When the side length of the cell in the honeycomb unit is 5mm, the gradient diameter of the hole is set to a range of 1mm-2.5mm.

27. The packaging structure according to claim 25, wherein, When the side length of the honeycomb unit is 12mm, the gradient diameter of the hole is set to a range of 2mm-5mm.

28. The packaging structure according to claim 23, wherein, The hole is at least one of the following: round hole, elliptical hole, rectangular hole, and square hole.

29. The packaging structure according to claim 18, wherein, Each of the plurality of walls is provided with the weak point.

30. The packaging structure according to claim 18, wherein, The lower end of the packaging structure is open.

31. The packaging structure according to any one of claims 18-20, wherein, The cut-off portion is configured as a slit, the length of which is set between 1% and 90% of the height of the honeycomb unit.

32. The packaging structure according to claim 18, wherein, The weak portion is constructed as a tear line extending along the height direction.

33. The packaging structure according to any one of claims 18-20, wherein, At least one of the walls in the plurality of hollow tessellation units is provided with a transverse weak portion, the transverse weak portion being configured as at least one transverse tangent line arranged in a direction perpendicular to the height direction.

34. The packaging structure according to any one of claims 18-20, further comprising: Multiple additional hollow tiled units, the upper ends of which are open and include multiple walls, wherein... Each of the multiple walls of the additional hollow tessellated units does not have a weak section arranged along the height direction.

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