Packaging box with bottom supporting structure

Abstract

The utility model discloses a packing box with a bottom supporting structure, which comprises a packing box main body formed by folding a paperboard, a supporting plate extending downwards is arranged on the side wall of the packing box main body, and the lower part of the supporting plate is folded upwards to form an upper folding plate. The lower portion of the supporting plate is folded upwards to form a bending structure of an upper folding plate, the bending structure protrudes out of a bottom plate of the packaging box body downwards, so that a bottom supporting structure capable of supporting the packaging box body is formed, the packaging box body can be conveniently placed through the bottom supporting structure, and due to the fact that the bottom supporting structure is a bending position of a paperboard instead of a cutting opening of the paperboard, the packaging box body can be conveniently placed. And meanwhile, the bottom of the packaging box main body can be suspended, so that the packaging box main body has a better use effect.

Description

Technical Field

[0001] The utility model relates to the field of packaging boxes, in particular to a packaging box provided with a bottom supporting structure. Background Art

[0002] Packaging boxes formed by folding cardboard are generally provided with downward-extending edges or corners at the bottom to facilitate insulation or stacking. Such corners are generally formed by bending the outer edge of the cardboard downward. The cut surface of the cardboard (the edge of the cardboard) faces downward to form the bottom of the supporting structure. That is, the cut surface of the cardboard is in direct contact with the table surface, etc. The cut surface of the cardboard is extremely susceptible to moisture absorption, affecting the normal structural strength of the packaging box, making the box more prone to deformation and mold. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a packaging box with a bottom support structure, which has a good anti-water absorption effect.

[0004] According to the first aspect of the present invention, a packaging box with a bottom support structure includes a packaging box main body formed by folding cardboard, and the side wall of the packaging box main body is provided with a downwardly extending support plate, the lower part of the support plate is folded upward to form an upper folding plate, and the lower part of the support plate is folded upward to form a bending structure of the upper folding plate that protrudes downward from the bottom plate of the packaging box main body to form a bottom support structure capable of supporting the packaging box main body.

[0005] The packaging box provided with a bottom support structure according to the embodiment of the present invention has at least the following beneficial effects: the bottom support structure can facilitate the placement of the packaging box body, and because the bottom support structure is the bending part of the cardboard rather than the cutting edge of the cardboard, it is not easy for the cardboard to absorb water, which can make the packaging box body have a better use effect.

[0006] According to some embodiments of the present invention, the upper folding plate is folded inward or outward.

[0007] According to some embodiments of the present invention, the upper folding plate is connected to the support plate by means of gluing or a snap-fit ​​structure.

[0008] According to some embodiments of the present invention, the packaging box body includes a side wall plate forming its side wall, the upper folding plate is folded inward, and the upper edge of the upper folding plate is placed between the side wall plate and the support plate.

[0009] According to some embodiments of the present invention, the upper folding plate is connected to the side wall plate and / or the support plate by means of gluing or a snap-fit ​​structure.

[0010] According to some embodiments of the present invention, the packaging box body includes a side wall plate forming a side wall thereof, and the upper portion of the support plate is connected to the upper portion of the side wall plate and has a bent connection portion.

[0011] According to some embodiments of the present invention, the side wall panels and the support panels are formed by folding a continuous cardboard in half.

[0012] According to some embodiments of the present invention, the packaging box body is formed by folding a continuous main paper board, the middle part of the main paper board is the bottom plate, the outer side of the bottom plate is connected to the side wall plate and separated by fold line one, the outer side of the side wall plate is connected to the support plate and separated by fold line two, the outer side of the support plate is connected to the upper folding plate and separated by fold line three, the side wall plate is bent upward along the fold line one to form the side wall of the packaging box body, the support plate is bent downward along the fold line two and is tightly attached to the outer side surface of the side wall plate, the upper folding plate is bent upward along the fold line three, and the lower part of the support plate and the bending structure of the lower part of the upper folding plate form the bottom support structure.

[0013] According to some embodiments of the present invention, a first connecting plate for connecting adjacent supporting plates is provided on a side of the supporting plate.

[0014] According to some embodiments of the present invention, a second connecting plate for connecting adjacent side wall plates is provided on the side of the side wall plate.

[0015] According to some embodiments of the present invention, the surface layer of the paperboard is provided with a film layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 This is one of the schematic diagrams of a packaging box provided with a bottom support structure according to an embodiment of the present invention;

[0018] Figure 2 This is the second schematic diagram of the packaging box provided with a bottom support structure according to an embodiment of the present invention;

[0019] Figure 3 This is a cross-sectional schematic diagram of a packaging box provided with a bottom support structure according to an embodiment of the present utility model;

[0020] Figure 4 for Figure 3 A partial enlarged schematic diagram of part A;

[0021] Figure 5This is a schematic diagram of the side wall of the packaging box body of the packaging box provided with a bottom support structure according to an embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the unfolding of a packaging box provided with a bottom support structure according to the first embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the expansion of a packaging box provided with a bottom support structure according to the second embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of the unfolding of a packaging box provided with a bottom support structure according to the third embodiment of the present invention;

[0025] Figure 9 This is a schematic diagram of the unfolding of the packaging box of an embodiment of the present invention when the main body is rectangular.

[0026] Reference numerals:

[0027] Packaging box body 100;

[0028] Support plate 210, upper folding plate 211, bending structure 211a, upper edge 211b, bottom plate 220, side wall plate 230, bending connection portion 231, first connecting plate 240, second connecting plate 250;

[0029] Fold line one 301 , fold line two 302 , fold line three 303 . DETAILED DESCRIPTION

[0030] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0032] In the description of this utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] In the following embodiments, the opening of the packaging box is defined as the top, and the center of the packaging box is defined as the inside.

[0035] Reference below Figures 1 to 9 A packaging box provided with a bottom support structure according to an embodiment of the present invention is described.

[0036] like Figures 1 to 5 As shown, a packaging box with a bottom support structure according to an embodiment of the present invention includes a packaging box main body 100 formed by folding cardboard, and the side wall of the packaging box main body 100 is provided with a support plate 210 extending downward, and the lower part of the support plate 210 is folded upward to form an upper folding plate 211, and the lower part of the support plate 210 is folded upward to form a bending structure 211a of the upper folding plate 211 protrudes downward from the bottom plate 220 of the packaging box main body 100 to form a bottom support structure capable of supporting the packaging box main body 100.

[0037] The bottom support structure can facilitate the placement of the packaging box body 100, and because the bottom support structure is the bending part of the cardboard rather than the cutting edge of the cardboard, it is not easy for the cardboard to absorb water, which can make the packaging box body 100 have a better use effect.

[0038] In addition, the bottom support structure is formed by the folding structure, and the bottom support structure has good structural strength, which improves the support effect on the packaging box body 100, and can elevate the packaging box body 100 relative to the placement surface, making it difficult to come into contact with water, oil, etc. on the placement surface, and is more hygienic and reliable to use.

[0039] Specifically, the bending structure 211a protrudes downward from the bottom plate 220 of the packaging box body 100, forming a bottom support structure that can support the packaging box body 100. In this embodiment, the bottom plate 220 is a flat plate, and the bottom support structure is arranged around the bottom plate 220 and is lower than the bottom plate 220, forming an edge or bottom structure.

[0040] Of course, in the specific implementation process, when the bottom plate 220 is a non-planar plate, the bending structure 211a may protrude downward from the bottom plate 220 of the packaging box main body 100 or the bending structure 211a may be lower than the bottom of the packaging box main body 100 for loading items. For example, a downward-extending middle support structure is provided in the middle of the bottom plate 220. At this time, the bending structure 211a may be flush with the middle support structure to jointly support the packaging box main body 100.

[0041] In some embodiments of the present invention, the upper folding plate 211 can be folded inward or outward to form a bent structure 211 a without a cutout, that is, to form a bottom supporting structure without a cutout.

[0042] In some embodiments of the present invention, the upper folding plate 211 is connected to the support plate 210 by means of gluing or a snap-fit ​​structure to fix the upper part of the upper folding plate 211, improve the structural strength of the bottom support structure, and keep the cut edge of the upper part of the upper folding plate 211 facing upward.

[0043] Specifically, the upper folding plate 211 is folded inward or outward to be in close contact with the support plate 210 and is fixed to the support plate 210 by means of an adhesive or snap-fit ​​structure, so as to keep the upper folding plate 211 and the support plate 210 in close contact.

[0044] like Figures 3 to 5 As shown, in some embodiments of the present invention, the packaging box body 100 includes a side wall plate 230 forming its side wall, the upper folding plate 211 is folded inward, and the upper edge 211b of the upper folding plate 211 is placed between the side wall plate 230 and the support plate 210, making the structure more compact, simplifying the external structure of the packaging box body 100, and hiding the cutout on the upper part of the upper folding plate 211, further reducing water absorption.

[0045] Specifically, the support plate 210 is located outside the side wall plate 230 and extends downward. After the upper folding plate 211 is folded upward, its upper portion is inserted into the gap between the side wall plate 230 and the support plate 210 .

[0046] In some embodiments of the present invention, the upper folding plate 211 is connected to the side wall plate 230 and / or the support plate 210 by means of gluing or snap-fitting structures to fix the upper portion of the upper folding plate 211 and improve the structural strength of the bottom support structure.

[0047] like Figures 3 to 8 As shown, in some embodiments of the present invention, the packaging box body 100 includes a side wall plate 230 forming its side wall, the upper part of the support plate 210 is connected to the upper part of the side wall plate 230 and has a bent connection part 231, which improves the continuity of the overall structure and simplifies the difficulty of production and processing, and the bent connection part 231 forms the opening outer edge of the packaging box body 100. There is no cutting edge at the bent connection part 231, which can also reduce the occurrence of cardboard absorbing water and can reduce the occurrence of the opening outer edge of the packaging box body 100 scratching the mouth or hands.

[0048] like Figures 3 to 8 As shown, in some embodiments of the present invention, the side wall panel 230 and the support panel 210 are formed by folding a continuous cardboard in half, which is convenient for production and processing and can make the packaging box body 100 have better structural strength.

[0049] It is understandable that in some embodiments of the present invention, the side wall plate 230 and the support plate 210 may also be connected via an assembly structure. For example, the support plate 210 may be fixed to the outer side of the side wall plate 230 by gluing.

[0050] like Figures 3 to 8 As shown, in some embodiments of the present invention, the packaging box body 100 is formed by folding a continuous main paperboard, the middle part of the main paperboard is the bottom panel 220, the outer side of the bottom panel 220 is connected to the side wall panel 230 and is separated by a fold line 1 301, the outer side of the side wall panel 230 is connected to the support panel 210 and is separated by a fold line 2 302, the outer side of the support panel 210 is connected to the upper folding panel 211 and is separated by a fold line 303, the side wall panel 230 is bent upward along the fold line 1 301 to form the side wall of the packaging box body 100, the support panel 210 is bent downward along the fold line 2 302 and is close to the outer side surface of the side wall panel 230, the upper folding panel 211 is bent upward along the fold line 303, the lower part of the support panel 210 and the bending structure 211a of the lower part of the upper folding panel 211 form a bottom support structure, so that a packaging box with a bottom support structure can be formed, the structural layout is reasonable, and the production and processing are convenient.

[0051] Specifically, the fold line 1 301 , the fold line 2 302 , and the fold line 303 may be identification lines or creases, etc., which may be printed as folding identifications or may be formed during folding.

[0052] like Figure 6 、 Figure 7 、 Figure 8 As shown, in some embodiments of the present invention, the support plate 210 is provided with a first connecting plate 240 connecting adjacent support plates 210. The first connecting plate 240 is connected to the adjacent support plates 210 by gluing or snapping structures to improve the structural strength of the packaging box body 100.

[0053] like Figure 6 、 Figure 7 As shown, in some embodiments of the present invention, the side of the side wall panel 230 is provided with a second connecting plate 250 for connecting the adjacent side wall panel 230. The second connecting plate 250 is connected to the adjacent side wall panel 230 by gluing or snapping structure to improve the structural strength of the packaging box body 100, and can better seal the gap between the adjacent side wall panels 230, so that the corner seams of the box body have a better sealing effect.

[0054] like Figure 6As shown, in some embodiments of the present invention, both sides of the second connecting plate 250 are connected to the side wall panels 230, and fold lines are set in the middle and on both sides of the second connecting plate 250. When the box body is folded, the second connecting plate 250 is folded along the middle fold line, and the two sides are connected to the adjacent side wall panels 230 by gluing or snapping, thereby achieving the purpose of strengthening the connection strength of the adjacent side wall panels 230, and at the same time, the seams between the adjacent side wall panels 230 can be closed.

[0055] like Figure 7 As shown, in some embodiments of the present invention, one side of the second connecting plate 250 is connected to the side wall plate 230 and is provided with a fold line mark, and the other side of the second connecting plate 250 is cut off from the adjacent side wall plate 230. When the box body is folded, the second connecting plate 250 is bent along the fold line mark to be close to the adjacent side wall plate 230 and connected to the adjacent side wall plate 230 by gluing or snapping, thereby achieving the purpose of strengthening the connection strength of the adjacent side wall plates 230, and at the same time can close the seams between the adjacent side wall plates 230.

[0056] It should be noted that in the above Figure 6 、 Figure 7 、 Figure 8 In the figure, the dotted line indicates the folding line, and the solid line indicates the cutting line.

[0057] In some embodiments of the present invention, the packaging box body 100 is a square box body, and the unfolded cardboard is as follows: Figure 6 、 Figure 7 、 Figure 8 As shown, in the specific implementation process, the packaging box body 100 can also be a box body of other shapes, such as the packaging box body 100 can be a rectangular structure, and the unfolded cardboard is as shown in FIG. Figure 9 shown.

[0058] In some embodiments of the present invention, the packaging box body 100 may be a square, circular, trapezoidal or other special-shaped structures.

[0059] In some embodiments of the present invention, a film layer is provided on the surface of the paperboard to improve the anti-water absorption effect of the packaging box body 100.

[0060] Specifically, the film layer can be formed on the surface of the paperboard by a film process or a laminating process, or can be formed by coating the surface of the paperboard with a coating.

[0061] Of course, the invention of the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A packaging box with a bottom support structure, comprising a packaging box body (100) formed by folding cardboard, characterized in that: The side wall of the packaging box body (100) is provided with a support plate (210) extending downward, the lower part of the support plate (210) is folded upward to form an upper folding plate (211), and the lower part of the support plate (210) is folded upward to form a bending structure (211a) of the upper folding plate (211) protruding downward from the bottom plate (220) of the packaging box body (100) to form a bottom support structure capable of supporting the packaging box body (100).

2. The packaging box with a bottom support structure according to claim 1, characterized in that: The upper folding plate (211) is folded inwards or outwards.

3. The packaging box with a bottom support structure according to claim 2, characterized in that: The upper folding plate (211) is connected to the support plate (210) by means of gluing or a snap-fit ​​structure.

4. The packaging box with a bottom support structure according to claim 1, characterized in that: The packaging box body (100) includes a side wall plate (230) forming a side wall thereof, the upper folding plate (211) is folded inward, and the upper edge (211b) of the upper folding plate (211) is placed between the side wall plate (230) and the support plate (210).

5. The packaging box with a bottom support structure according to claim 4, characterized in that: The upper folding plate (211) is connected to the side wall plate (230) and / or the support plate (210) by means of gluing or a snap-fit ​​structure.

6. The packaging box with a bottom support structure according to claim 1, characterized in that: The packaging box body (100) includes a side wall plate (230) forming a side wall thereof, and the upper portion of the support plate (210) is connected to the upper portion of the side wall plate (230) and has a bent connection portion (231).

7. The packaging box with a bottom support structure according to claim 1, characterized in that: The packaging box body (100) is formed by folding a continuous main paperboard, the middle part of the main paperboard is the bottom plate (220), the outer side of the bottom plate (220) is connected to the side wall plate (230) and is separated by a fold line 1 (301), the outer side of the side wall plate (230) is connected to the support plate (210) and is separated by a fold line 2 (302), the outer side of the support plate (210) is connected to the upper folding plate (211) and is separated by a fold line 3 (303), and the The side wall plate (230) is bent upward along the fold line 1 (301) to form the side wall of the packaging box body (100), the support plate (210) is bent downward along the fold line 2 (302) and is tightly attached to the outer side surface of the side wall plate (230), the upper folding plate (211) is bent upward along the fold line 3 (303), and the lower part of the support plate (210) and the bending structure (211a) of the lower part of the upper folding plate (211) form the bottom support structure.

8. The packaging box with a bottom support structure according to claim 7, characterized in that: A first connecting plate (240) for connecting an adjacent supporting plate (210) is provided on a side of the supporting plate (210).

9. The packaging box with a bottom support structure according to claim 7, characterized in that: A second connecting plate (250) for connecting adjacent side wall plates (230) is provided on the side of the side wall plate (230).

10. The packaging box with a bottom support structure according to claim 1, characterized in that: The surface layer of the paperboard is provided with a film layer.

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