Triangular prism type boutique packaging box capable of being folded into flat plate shape

Abstract

The utility model discloses a triangular prism type boutique packaging box capable of being folded into a flat plate shape, which comprises a box body, a pair of triangular box end walls and a pair of triangular box end walls, and the box body comprises a box front wall and a box rear wall which can be connected in a turnover mode. Each front connecting piece comprises a first sheet body and a second sheet body which can be connected in a turnover manner; each rear connecting piece comprises a third sheet body and a fourth sheet body which can be connected in a turnover manner; the box cover comprises a box top wall and a box front cover which can be connected in a turnover manner; the locking piece can continuously provide acting force for the box front cover to be tightly attached to the outer surface of the box front wall. The packaging box has the advantages that the containing space can disappear temporarily through the flat-plate-shaped structure, the box body and the box cover are transferred to the same plane, the requirement for the size of a storage space in the production link of the packaging box is lowered, or more packaging boxes can be contained in the storage space with the same size; and on the other hand, the flat-plate-shaped structure facilitates stacking, and cost needed in the transportation link can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging boxes, in particular to a triangular prism-shaped fine packaging box which can be folded into a flat plate shape. Background Art

[0002] A high-end packaging box, also known as a composite packaging box, refers to a packaging box with a cardboard base as the frame and a layer of thin decorative paper (other fabrics such as leather, velvet, etc.) glued on the surface.

[0003] In the prior art, a high-quality packaging box is made of several cardboards to form a rigid box-like structure with a storage space. When the items are placed in the storage space, they can provide a certain degree of protection for the aforementioned items. However, this structure has the following disadvantages: when building the box-like structure, each cardboard is located on a different plane, which makes it difficult to stack the items. Moreover, each box-like structure has a storage space, which results in a large volume demand for storage space in the production process and a high cost in the transportation process. Utility Model Content

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the utility model aims to provide a triangular prism-shaped high-quality packaging box that can be folded into a flat plate.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A triangular prism-shaped high-quality packaging box that can be folded into a flat plate shape, comprising:

[0007] The box body comprises a box front wall and a box rear wall which can be folded and connected, and a pair of triangular box end walls, wherein the box end walls are provided with a front side edge, a top side edge and a rear side edge which are connected end to end;

[0008] Two front connecting members, including a first sheet and a second sheet that can be folded and connected, the second sheet away from the first sheet can be folded and connected to the front side, and the first sheet is fixedly attached to the inner surface of the front wall of the box;

[0009] Two rear connecting members, including a third sheet and a fourth sheet that can be folded and connected, wherein a side of the fourth sheet away from the third sheet can be folded and connected to the rear side, and the third sheet is fitted and fixed to the inner surface of the rear wall of the box;

[0010] The box cover comprises a box top wall and a box front cover which can be folded and connected, wherein a side edge of the box top cover away from the box front cover can be folded and connected to a side edge of the box rear wall away from the box front wall, and can abut against the top side edge when folded relative to the box rear wall;

[0011] The locking member acts on the front cover of the box and can continuously provide a force for the front cover of the box to be tightly attached to the outer surface of the front wall of the box.

[0012] Preferably, the locking element comprises:

[0013] A magnet, disposed on the front cover of the box;

[0014] The iron sheet is arranged on the front wall of the box and can cooperate with the magnet by magnetic attraction.

[0015] Preferably, the front wall, rear wall, top wall and front cover of the box are made of the same gray board I, and the gray board I is provided with three inwardly opening V-shaped grooves along its length direction; a first assembly hole is provided on the front cover of the box, and the magnet is arranged in the first assembly hole; a second assembly hole corresponding to the first assembly hole is provided on the front wall of the box, and the iron sheet is arranged in the second assembly hole.

[0016] Preferably, it also includes:

[0017] The face paper comprises a main body and a first edge extending outwardly around the edge of the main body, wherein the main body matches the size of the gray board I and is attached to the outer surface of the gray board I, and when the first edge is folded inwardly, it can cover the side of the gray board I and be attached to the inner surface of the gray board I;

[0018] The lining paper matches the size of the grey board I and is pasted on the inner surface of the grey board I, and can cover the first edge wrapping.

[0019] Preferably, two first assembly holes are provided, and the two first assembly holes are respectively provided on a side of the box front cover away from the V-shaped groove body; two second assembly holes are provided, and the two second assembly holes are respectively provided on a side of the box front wall close to the V-shaped groove body; the lining paper can cover the first assembly hole and the second assembly hole.

[0020] Preferably, the box end wall is made of gray board II, and the lengths of the front side, top side and rear side are equal; it also includes decorative paper corresponding to the box end wall, and the front connecting member and the rear connecting member are respectively connected to the box end wall through the decorative paper.

[0021] Preferably, the decorative paper includes a symmetrically arranged fitting area and a covering area, the box end wall is bonded to the middle of the fitting area, the front connecting piece is bonded to the fitting area and close to the front side edge, and the rear connecting piece is bonded to the fitting area and close to the rear side edge; the covering area is folded symmetrically with the fitting area and can cover the box end wall, the front connecting piece and the rear connecting piece.

[0022] Preferably, the first sheet is made of a triangular gray board III, the second sheet is made of a triangular gray board IV, the third sheet is made of a triangular gray board V, and the fourth sheet is made of a triangular gray board VI;

[0023] The second sheet and the first sheet are sequentially bonded to the inner surface of the bonding area from the front side outward, and the fourth sheet and the third sheet are sequentially bonded to the inner surface of the bonding area from the rear side outward.

[0024] Preferably, the bonding area is provided with a second edging corresponding to the box end wall, the first sheet, the second sheet, the third sheet and the fourth sheet on the side extending outwardly away from the covering area. When the second edging is folded inward, it can cover the sides of gray boards II, III, IV, V and VI and be adhered to the inner surfaces of gray boards II, III, IV, V and VI.

[0025] Preferably, it also includes:

[0026] A front adhesive is applied to the outer surface of the covering area, and the applied area corresponds to the first sheet; the first sheet is fixed to the inner surface of the front wall of the box by the front adhesive;

[0027] The rear adhesive is applied to the outer surface of the covering area, and the coated area corresponds to the third sheet body; the third sheet body is fixed to the inner surface of the rear wall of the box by the rear adhesive.

[0028] The storage state of the packaging box in the utility model is as follows: the front cover of the box is folded and unfolded with the top wall of the box to form a first plane, the rear wall of the box is folded relative to the top wall of the box and is located on the aforementioned first plane, the front wall of the box is folded relative to the rear wall of the box and is located on the aforementioned first plane, and a pair of box end walls are folded and tightly attached to the aforementioned first plane through the front connecting piece and the rear connecting piece respectively, thereby realizing the change of the box-like structure into a flat-plate structure in the form of folding and unfolding.

[0029] The usage status of the packaging box in the utility model is as follows: first, a pair of box end walls are flipped outwards respectively by using the front connecting piece and the rear connecting piece, and during the flipping process, a accommodating space is formed by the box front wall, the box rear wall and the pair of box end walls, and then the box top wall is folded relative to the box rear wall to seal the aforementioned accommodating space, and finally the box front cover is folded relative to the box top wall until it is fitted with the box front wall, and the locking piece is used to continuously provide the box front cover with a force to stick to the box front wall, thereby forming a triangular prism-type packaging box structure with an accommodating space.

[0030] Compared with the prior art, the beneficial effects of the present invention are: the flat structure can make the accommodating space disappear temporarily, and transfer the box body and the box cover to the same plane, which is beneficial to reduce the volume demand for storage space in the production process of the packaging box or to accommodate more packaging boxes in the storage space of the same volume. On the other hand, the flat structure is convenient for stacking, which is beneficial to reduce the cost required in the transportation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the planar unfolding structure of the gray board I, the surface paper, and the lining paper in the embodiment of the utility model;

[0032] Figure 2 It is a schematic diagram of the planar unfolded structure of the decorative paper, the front connecting piece, the rear connecting piece, and the box end wall in the embodiment of the utility model;

[0033] Figure 3 This is a schematic diagram of the gray board I and the surface paper being glued together in the embodiment of the utility model;

[0034] Figure 4 This is a schematic diagram of the gray board I and the lining paper in the embodiment of the utility model;

[0035] Figure 5 This is a schematic diagram of the molding of the box front wall, box rear wall, box top wall, and box front cover in an embodiment of the utility model;

[0036] Figure 6 It is a schematic diagram of the box end wall, the front connecting piece, the rear connecting piece and the decorative paper bonding in the embodiment of the utility model;

[0037] Figure 7 This is a schematic diagram of the covering area of ​​the embodiment of the present utility model being folded symmetrically relative to the fitting area;

[0038] Figure 8 This is a schematic diagram of the box end wall molding in an embodiment of the utility model;

[0039] Fig. 9 This is a schematic diagram of a flat plate structure in an embodiment of the present utility model;

[0040] Fig.10 This is a schematic diagram of the folding process of an embodiment of the utility model;

[0041] Fig.11 This is a schematic diagram of the folding process of an embodiment of the utility model;

[0042] Fig.12 This is a schematic diagram of a triangular prism-shaped packaging box according to an embodiment of the present utility model.

[0043] As shown in the figure:

[0044] 1-box body, 11-box front wall, 111-second assembly hole, 12-box rear wall, 13-box end wall, 131-front side edge, 132-top side edge, 133-rear side edge;

[0045] 2-front connecting piece, 21-first sheet, 22-second sheet;

[0046] 3-rear connecting piece, 31-third sheet, 32-fourth sheet;

[0047] 4-box cover, 41-box top wall, 42-box front cover, 421-first assembly hole;

[0048] 5-locking piece, 51-magnet, 52-iron sheet;

[0049] 6-gray plate I, 61-V-shaped trough;

[0050] 7-face paper, 71-body, 72-first edge wrapping;

[0051] 8- Lining paper;

[0052] 9-decorative paper, 91-lamination area, 911-second edge wrapping, 92-covering area. DETAILED DESCRIPTION

[0053] The following is a detailed explanation of the implementation of the present invention in conjunction with the accompanying drawings. The accompanying drawings are for reference and illustration only and do not constitute a limitation on the scope of patent protection of the present invention.

[0054] See also Figure 1-Figure 12 In this embodiment, a triangular prism-shaped boutique packaging box that can be folded into a flat plate includes:

[0055] The box body 1 comprises a box front wall 11 and a box rear wall 12 which can be folded and connected, and a pair of triangular box end walls 13, wherein the box end walls 13 are provided with a front side edge 131, a top side edge 132 and a rear side edge 133 which are connected end to end;

[0056] Two front connecting members 2, including a first sheet 21 and a second sheet 22 that can be folded and connected, the second sheet 22 can be folded and connected to the front side 131 at one side away from the first sheet 21, and the first sheet 21 is fixedly attached to the inner surface of the box front wall 11;

[0057] Two rear connecting members 3, including a third sheet 31 and a fourth sheet 32 ​​that can be folded and connected, the side of the fourth sheet 32 ​​away from the third sheet 31 can be folded and connected to the rear side 133, and the third sheet 31 is fixedly attached to the inner surface of the box rear wall 12;

[0058] The box cover 4 comprises a box top wall 41 and a box front cover 42 which can be folded and connected, wherein a side edge of the box top cover away from the box front cover 42 can be folded and connected to a side edge of the box rear wall 12 away from the box front wall 11, and can abut against the top side edge 132 when folded relative to the box rear wall 12;

[0059] The locking member 5 acts on the box front cover 42 and can continuously provide a force for the box front cover 42 to be in close contact with the outer surface of the box front wall 11 .

[0060] See also Fig. 9 In the storage state of the packaging box in this embodiment, the box front cover 42 is folded and unfolded with the box top wall 41 to form a first plane, the box rear wall 12 is folded relative to the box top wall 41 and is located on the aforementioned first plane, the box front wall 11 is folded relative to the box rear wall 12 and is located on the aforementioned first plane, and a pair of box end walls 13 are folded and pressed against the aforementioned first plane through the front connecting member 2 and the rear connecting member 3 respectively, thereby realizing the change of the box-like structure into a flat-plate structure in the form of folding and unfolding.

[0061] See also Fig.12 The usage status of the packaging box in this embodiment is: first, the front connecting member 2 and the rear connecting member 3 are used to flip a pair of box end walls 13 outward respectively. During the flipping process, an accommodating space is formed by the box front wall 11, the box rear wall 12 and the pair of box end walls 13, and then the box top wall 41 is folded relative to the box rear wall 12 to cover the aforementioned accommodating space, and finally the box front cover 42 is folded relative to the box top wall 41 until it is in contact with the box front wall 11, and the locking member is used to continuously provide the box front cover 42 with a force to stick to the box front wall 11, thereby forming a triangular prism packaging box structure with an accommodating space.

[0062] Preferably, the locking member 5 comprises:

[0063] A magnet 51 is provided on the box front cover 42;

[0064] The iron sheet 52 is disposed on the front wall 11 of the box and can be magnetically coupled with the magnet 51 .

[0065] In this embodiment, the box front cover 42 is fixed to the box front wall 11 through the magnetic attraction cooperation between the magnet 51 and the iron sheet 52 and can be detached, which has a simple structure and is easy to use.

[0066] Preferably, the box front wall 11, the box rear wall 12, the box top wall 41 and the box front cover 42 are made of the same gray board Ⅰ6, and the gray board Ⅰ6 is provided with three inwardly opening V-shaped grooves 61 along its length direction; the box front cover 42 is provided with a first assembly hole 421, and the magnet 51 is arranged in the first assembly hole 421; the box front wall 11 is provided with a second assembly hole 111 corresponding to the first assembly hole 421, and the iron sheet 52 is arranged in the second assembly hole 111.

[0067] See also Figure 1 The gray board of this embodiment refers to a cardboard with one side being gray and the other side being pure white, which belongs to a conventional cardboard material commonly used in the art, so it will not be described in detail here. Specifically, the gray board Ⅰ6 is rectangular, and three V-shaped grooves 61 are arranged at equal intervals along the length direction of the gray board Ⅰ6 to obtain a box front wall 11, a box rear wall 12, a box top wall 41 and a box front cover 42 of equal area. The box front wall 11 and the box rear wall 12 are connected by one V-shaped groove 61, the box rear wall 12 and the box top wall 41 are connected by another V-shaped groove 61, and the box top wall 41 and the box front cover 42 are connected by another V-shaped groove 61; the first assembly hole 421 is formed on the box front cover 42 by punching, and the second assembly hole 111 is formed on the box front wall 11 by punching.

[0068] Preferably, it also includes:

[0069] The face paper 7 includes a body 71 and a first edge 72 extending outwardly around the edge of the body 71. The body 71 matches the size of the gray board Ⅰ6 and is attached to the outer surface of the gray board Ⅰ6. When the first edge 72 is folded inward, it can cover the side of the gray board Ⅰ6 and be attached to the inner surface of the gray board Ⅰ6.

[0070] The lining paper 8 matches the size of the grey board Ⅰ6 and is pasted on the inner surface of the grey board Ⅰ6 , and can cover the first edge wrapping 72 .

[0071] See also Figure 3-Figure 5 In this embodiment, the face paper 7 is die-cut according to the area and thickness of the gray board Ⅰ6, wherein the main body 71 corresponds to the area of ​​the gray board Ⅰ6, and the first edge wrap 72 corresponds to the thickness of the gray board Ⅰ6, which serves to shield a portion of the outer surface and side of the gray board Ⅰ6; the lining paper 8 is die-cut according to the area of ​​the gray board Ⅰ6, which serves to shield the inner surface of the gray board Ⅰ6, the first assembly hole 421 and the second assembly hole 111, wherein before pasting the lining paper 8, it is necessary to install the magnet 51 in the first assembly hole 421, and the iron sheet 52 in the second assembly hole 111.

[0072] Preferably, two first assembly holes 421 are provided, and the two first assembly holes 421 are respectively provided on the side of the box front cover 42 away from the V-shaped groove body 61; two second assembly holes 111 are provided, and the two second assembly holes are respectively provided on the side of the box front wall 11 close to the V-shaped groove body 61; the lining paper 8 can cover the first assembly hole 421 and the second assembly hole 111.

[0073] In this embodiment, a double magnetic attraction structure is used to increase the closing force of the box front cover 42 and reduce the possibility of loosening.

[0074] Preferably, the box end wall 13 is made of gray board II, and the lengths of the front side 131, the top side 132 and the rear side 133 are equal; it also includes decorative paper 9 corresponding to the box end wall 13, and the front connecting member 2 and the rear connecting member 3 are respectively connected to the box end wall 13 through the decorative paper 9.

[0075] In this embodiment, the box end wall 13 is an equilateral triangle. When in use, the front side 131 abuts against the box front wall 11, the rear side 133 abuts against the box rear wall 12, and the top side 132 abuts against the box top wall 41, thereby forming a triangular prism-type packaging box structure; specifically, the decorative paper 9 is die-cut according to the size of the combination of a box end wall 13, a front connecting piece 2 and a rear connecting piece 3.

[0076] Preferably, the decorative paper 9 includes a symmetrically arranged fitting area 91 and a covering area 92, the box end wall 13 is bonded to the middle of the fitting area 91, the front connecting piece 2 is bonded to the fitting area 91 and close to the front side edge 131, and the rear connecting piece 3 is bonded to the fitting area 91 and close to the rear side edge 133; the covering area 92 is folded symmetrically with the fitting area 91 and can cover the box end wall 13, the front connecting piece 2 and the rear connecting piece 3.

[0077] Preferably, the first sheet 21 is made of a triangular gray board III, the second sheet 22 is made of a triangular gray board IV, the third sheet 31 is made of a triangular gray board V, and the fourth sheet 32 ​​is made of a triangular gray board VI;

[0078] The second sheet 22 and the first sheet 21 are bonded to the inner surface of the bonding area 91 in sequence from the front side 131 outward, and the fourth sheet 32 ​​and the third sheet 31 are bonded to the inner surface of the bonding area 91 in sequence from the rear side 133 outward.

[0079] See also Figure 6-Figure 8In this embodiment, the side of the bonding area 91 away from the covering area 92 is provided with a first vertical side, a first oblique side, a first horizontal side, a second oblique side, and a second vertical side connected in sequence. During assembly, the top side 132 of the box end wall 13 is first aligned with the aforementioned first horizontal side and stacked, and then the second sheet 22 and the fourth sheet 32 ​​are stacked on both sides of the box end wall 13, one short side of the second sheet 22 is aligned with the aforementioned first oblique side, and one short side of the fourth sheet 32 ​​is aligned with the aforementioned second oblique side, and then the first sheet 21 is stacked on the side of the second sheet 22 away from the box end wall 13. , a short side of the first sheet 21 is aligned with the aforementioned first vertical side, and the third sheet 31 is stacked on the side of the fourth sheet 32 ​​away from the box end wall 13, and a short side of the third sheet 31 is aligned with the aforementioned second vertical side, and then the second edge binding 911 corresponding to the box end wall 13, the first sheet 21, the second sheet 22, the third sheet 31 and the fourth sheet 32 ​​are turned inward to cover the side surfaces of the gray boards II, III, IV, V and VI, and finally the inner surface of the aforementioned gray board and the aforementioned second edge binding 911 are covered by symmetrically turning up the covering area 92.

[0080] Preferably, the bonding area 91 is provided with a second edging 911 corresponding to the box end wall 13, the first sheet 21, the second sheet 22, the third sheet 31 and the fourth sheet 32 ​​on the side extending outward away from the covering area 92; when the second edging 911 is folded inward, it can cover the sides of gray boards II, III, IV, V and VI and be adhered to the inner surfaces of gray boards II, III, IV, V and VI.

[0081] In this embodiment, the first vertical side, the first oblique side, the first horizontal side, the second oblique side, and the second vertical side of the bonding area 91 are respectively extended outward with a second edging 911, and the second edging 911 is bonded to the inner surfaces of gray board II, gray board III, gray board IV, gray board V and gray board VI by glue.

[0082] Preferably, it also includes:

[0083] The front adhesive is applied to the outer surface of the covering area 92, and the applied area corresponds to the first sheet 21; the first sheet 21 is fixed to the inner surface of the box front wall 11 by the front adhesive;

[0084] The rear adhesive is applied to the outer surface of the covering area 92 , and the coated area corresponds to the third sheet 31 ; the third sheet 31 is fixed to the inner surface of the box rear wall 12 by the rear adhesive.

[0085] In this embodiment, the front sides of a pair of box end walls 13 are respectively adhered and fixed to the box front wall 11 by front adhesive, and the rear sides of a pair of box end walls 13 are respectively adhered and fixed to the box rear wall 12 by rear adhesive.

[0086] The above disclosure is only a preferred embodiment of the present invention, which cannot be used to limit the scope of protection of the present invention. Therefore, equivalent changes made within the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A triangular prism-shaped high-quality packaging box that can be folded into a flat plate, characterized in that: include: The box body comprises a box front wall and a box rear wall which can be folded and connected, and a pair of triangular box end walls, wherein the box end walls are provided with a front side edge, a top side edge and a rear side edge which are connected end to end; Two front connecting members, including a first sheet and a second sheet that can be folded and connected, the second sheet away from the first sheet can be folded and connected to the front side, and the first sheet is fixedly attached to the inner surface of the front wall of the box; Two rear connecting members, including a third sheet and a fourth sheet that can be folded and connected, wherein a side of the fourth sheet away from the third sheet can be folded and connected to the rear side, and the third sheet is fitted and fixed to the inner surface of the rear wall of the box; The box cover comprises a box top wall and a box front cover which can be folded and connected, wherein a side edge of the box top cover away from the box front cover can be folded and connected to a side edge of the box rear wall away from the box front wall, and can abut against the top side edge when folded relative to the box rear wall; The locking member acts on the front cover of the box and can continuously provide a force for the front cover of the box to be tightly attached to the outer surface of the front wall of the box.

2. A triangular prism-shaped high-quality packaging box that can be folded into a flat plate according to claim 1, characterized in that: The locking member comprises: A magnet, disposed on the front cover of the box; The iron sheet is arranged on the front wall of the box and can cooperate with the magnet by magnetic attraction.

3. A triangular prism-shaped fine product packaging box that can be folded into a flat plate according to claim 2, characterized in that: The front wall, rear wall, top wall and front cover of the box are made of the same gray board I, and the gray board I is provided with three inwardly opening V-shaped grooves along its length direction; a first assembly hole is provided on the front cover of the box, and the magnet is arranged in the first assembly hole; a second assembly hole corresponding to the first assembly hole is provided on the front wall of the box, and the iron sheet is arranged in the second assembly hole.

4. A triangular prism-shaped fine product packaging box that can be folded into a flat plate according to claim 3, characterized in that: Also includes: The face paper comprises a main body and a first edge extending outwardly around the edge of the main body, wherein the main body matches the size of the gray board I and is attached to the outer surface of the gray board I, and when the first edge is folded inwardly, it can cover the side of the gray board I and be attached to the inner surface of the gray board I; The inner lining paper matches the size of the grey board I and is pasted on the inner surface of the grey board I, so as to cover the first edge wrapping.

5. A triangular prism-shaped fine product packaging box that can be folded into a flat plate according to claim 4, characterized in that: There are two first assembly holes, which are respectively arranged on a side of the box front cover away from the V-shaped groove body; there are two second assembly holes, which are respectively arranged on a side of the box front wall close to the V-shaped groove body; the lining paper can cover the first assembly hole and the second assembly hole.

6. The triangular prism-shaped high-quality packaging box that can be folded into a flat plate according to claim 1, characterized in that: The box end wall is made of gray board II, and the lengths of the front side, top side and rear side are equal; it also includes decorative paper corresponding to the box end wall, and the front connecting piece and the rear connecting piece are respectively connected to the box end wall through the decorative paper.

7. A triangular prism-shaped high-quality packaging box that can be folded into a flat plate according to claim 6, characterized in that: The decorative paper includes a symmetrically arranged bonding area and a covering area, the box end wall is bonded to the middle of the bonding area, the front connecting piece is bonded to the bonding area and close to the front side edge, and the rear connecting piece is bonded to the bonding area and close to the rear side edge; the covering area is folded symmetrically with the bonding area and can cover the box end wall, the front connecting piece and the rear connecting piece.

8. The triangular prism-shaped high-quality packaging box that can be folded into a flat plate according to claim 7, characterized in that: The first sheet is made of a triangular gray plate III, the second sheet is made of a triangular gray plate IV, the third sheet is made of a triangular gray plate V, and the fourth sheet is made of a triangular gray plate VI; The second sheet and the first sheet are sequentially bonded to the inner surface of the bonding area from the front side outward, and the fourth sheet and the third sheet are sequentially bonded to the inner surface of the bonding area from the rear side outward.

9. The triangular prism-shaped high-quality packaging box that can be folded into a flat plate according to claim 8, characterized in that: The bonding area is provided with a second edge extending outward on the side away from the covering area and corresponding to the box end wall, the first sheet, the second sheet, the third sheet and the fourth sheet. When the second edge is folded inward, it can cover the sides of gray boards II, III, IV, V and VI and be adhered to the inner surfaces of gray boards II, III, IV, V and VI.

10. A triangular prism-shaped high-quality packaging box that can be folded into a flat plate according to claim 9, characterized in that: Also includes: A front adhesive is applied to the outer surface of the covering area, and the area of ​​the coating corresponds to the first sheet; The first sheet is fixed to the inner surface of the front wall of the box by the front adhesive; The rear adhesive is applied to the outer surface of the covering area, and the coated area corresponds to the third sheet body; the third sheet body is fixed to the inner surface of the rear wall of the box by the rear adhesive.

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