Packaging Box

Abstract

The present invention discloses a packaging box, which is a paper folding forming structure, comprising an outer shell, a main product box area and an accessory box area arranged in the outer shell; a display window is provided on the outer shell; the main product box area is folded to form a shell structure with an inner cavity and a missing top surface, and the top of the main product box area is arranged opposite to the display window; the accessory box area is folded to form a shell structure with an inner cavity, and is supported between the main product box area and the bottom surface of the outer shell. In the above packaging box, the entire paper box packaging is formed by folding cardboard, without adhesive, without pasting, good environmental protection, and low cost; at the same time, the packaging box is a two-layer structure, and the accessory box area of ​​the lower layer can play a secondary buffering role on the side of the upper main box type, which can replace EVA, blister and other buffering materials, and has strong support; and can be used for displaying different electronic products, with strong versatility.

Description

Technical Field

[0001] The present invention relates to the technical field of product packaging, in particular to a packaging box. Background Art

[0002] At present, Bluetooth headsets are favored by customers because they allow users to avoid the entanglement of headphone wires and make calls in various ways. In order to win the favor of more potential customers, manufacturers not only improve the structure of Bluetooth headsets themselves, but also put forward higher and higher requirements on the appearance and packaging of Bluetooth headsets.

[0003] Most Bluetooth headsets use a fine mounting box + product tray structure, which is expensive, not environmentally friendly, and has a single color and an unpleasant odor. As ODM customers have higher and higher requirements for environmentally friendly packaging and stricter cost control, degradable paper has become an irreplaceable packaging material. Therefore, paper packaging structures are now increasingly favored by customers, and how to design a color box packaging that is both cost-saving and strong has become the top priority. Summary of the invention

[0004] Based on this, the technical problem to be solved by the present invention is to provide a packaging box with low cost, strong support and convenient for product display.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0006] A packaging box is a paper folding structure, the packaging box is a cube as a whole, including an outer shell, a main product box area and an accessory box area arranged in the outer shell; a display window is provided on the outer shell; the main product box area is folded to form a shell structure with an inner cavity and a missing top surface, and the top of the main product box area is arranged opposite to the display window; the accessory box area is folded to form a shell structure with an inner cavity, and is supported between the main product box area and the bottom surface of the outer shell.

[0007] Furthermore, the housing comprises a right side surface, a bottom surface, a left side surface and a top surface connected in sequence by crease lines, and two sides of the top surface are respectively connected to the front side surface and the first rear side surface; one side of the bottom surface is connected to a connecting side surface; the display window is opened on the top surface;

[0008] The product main box area includes an external buffer structure, which includes a bottom external buffer surface, a left external buffer surface, a right external buffer surface, a rear external buffer surface, and a front external buffer surface. The bottom external buffer surface is connected to the first rear side surface, the left external buffer surface, the right external buffer surface, and the front external buffer surface are respectively connected to the bottom external buffer surface, and the rear external buffer surface is connected to the front external buffer surface; the product main box area is fixed to a shell structure with an inner cavity by a tongue-and-slot structure;

[0009] The accessory box area includes an accessory top surface, an accessory front side surface, an accessory bottom surface, and an accessory left side surface and an accessory right side surface located on both sides of the second rear side surface, which are connected to the second rear side surface in sequence through crease lines; the accessory box area is fixed to a shell structure with an inner cavity through a tongue-and-slot structure;

[0010] The connecting side surface and the accessory rear side surface form the rear side surface of the housing.

[0011] Furthermore, the product main box area also includes an inner buffer structure, which is located on the inner side of the outer buffer structure; the inner buffer structure includes a bottom inner buffer surface, a left inner buffer surface, a right inner buffer surface, a rear inner buffer surface, and a front inner buffer surface; the front inner buffer surface, the bottom inner buffer surface, and the rear inner buffer surface are connected in sequence and are located between the front outer buffer surface and the rear outer buffer surface, the front inner buffer surface is connected to the front outer buffer surface via a first connecting surface, and the rear inner buffer surface is connected to the rear outer buffer surface via a second connecting surface; the rear inner buffer surface is connected to the left inner buffer surface; the right inner buffer surface is connected to the right outer buffer surface via a third connecting surface; the left outer buffer surface is connected to a fourth connecting surface; after the product main box area is folded, the inner buffer structure and the outer buffer structure are surrounded by a shell structure with a cavity, and there is a hollow inner cavity between the inner buffer structure and the outer buffer structure.

[0012] Further, a first bottom surface inserting tongue is arranged at the fold edge between the front inner buffer surface and the bottom inner buffer surface; a second bottom surface inserting tongue is arranged at the fold edge between the rear inner buffer surface and the bottom inner buffer surface, a third bottom surface inserting tongue is arranged at one side of the left inner buffer surface, and a fourth bottom surface inserting tongue is arranged at one side of the right inner buffer surface; a first bottom surface slot, a second bottom surface slot, a third bottom surface slot, and a fourth bottom surface slot are respectively arranged on the bottom outer buffer surface; the bottom inner buffer surface is superimposed on the bottom outer buffer surface, and the first bottom surface inserting tongue, the second bottom surface inserting tongue, the third bottom surface inserting tongue, and the fourth bottom surface inserting tongue are respectively inserted and fixed in the first bottom surface slot, the second bottom surface slot, the third bottom surface slot, and the fourth bottom surface slot;

[0013] The other side of the left inner buffer surface is provided with a first top surface inserting tongue, and correspondingly, the fourth connecting surface is connected with a lap plate, and a first top surface slot is provided at the fold edge between them.

[0014] A first middle plug-in tongue and a second middle plug-in tongue are respectively arranged on both sides of the front inner buffer surface. Correspondingly, the left inner buffer surface is connected to the lap plate, and a first middle slot cooperating with the first middle plug-in tongue is arranged on the fold edge therebetween; one side of the right inner buffer surface is connected to the lap plate, and a second middle slot cooperating with the second middle plug-in tongue is arranged on the fold plate therebetween; a third middle plug-in tongue is arranged on the rear inner buffer surface, and the other side of the right inner buffer surface is connected to the lap plate, and a third middle slot cooperating with the third middle plug-in tongue is arranged on the fold plate therebetween.

[0015] Furthermore, an accessory bottom insert tongue is arranged on the fold line between the bottom surface of the accessory, and the rear side surface of the accessory is connected to the lap plate, and an accessory bottom slot matching with the accessory bottom insert tongue is arranged on the fold line between them;

[0016] A first accessory top inserting tongue and a second accessory top inserting tongue are respectively arranged on both sides of the accessory top surface; correspondingly, the left side of the accessory is connected to the lap plate, and a first accessory top slot is arranged on the fold line therebetween; the right side of the accessory is connected to the lap plate, and a second accessory top slot is arranged on the fold line therebetween;

[0017] The first accessory middle tongue and the second accessory middle tongue are respectively arranged on both sides of the front side of the accessory; correspondingly, the right side of the accessory is connected with a lap plate, and the first accessory middle slot is arranged on the fold line therebetween; the left side of the accessory is connected with a lap plate, and the second accessory middle slot is arranged on the fold line therebetween.

[0018] Furthermore, a middle connecting slot is provided at the fold line between the rear side surface of the accessory and the top surface of the accessory, and the second bottom surface inserting tongue is fixed to the middle connecting slot.

[0019] Furthermore, the front side surface is provided with a bottom plug tongue, the bottom surface is connected to the lap plate, and the fold line therebetween is provided with a bottom slot correspondingly;

[0020] The front side surface is provided with a first side plug tongue, the right side surface is connected to the lap plate, and the right side surface and the lap plate are provided with a first side slot; the right side surface is provided with a second side plug tongue, the rear side surface of the accessory is connected to the lap plate, and the second side slot is provided corresponding to the crease line therebetween; the left side surface is provided with a third side plug tongue, the rear side surface of the accessory is connected to the lap plate, and the third side slot is provided corresponding to the crease line therebetween;

[0021] The right side surface is provided with a top surface inserting tongue, and the top surface is connected to the lap plate, and the fold line therebetween is provided with a top surface slot corresponding to the fold line therebetween.

[0022] Furthermore, a first oblique crease line and a second oblique crease line are respectively arranged on the bottom surface and the left side surface, and one end of the first oblique crease line and the second oblique crease line are connected, so that the bottom surface and the left side surface form an inner concave cavity after folding; a triangular inclined surface is arranged on the front side surface, and the cover is arranged on the inner concave cavity after folding.

[0023] Furthermore, a first oblique insertion tongue and a second oblique insertion tongue are respectively provided on both sides of the triangular inclined surface; correspondingly, a first oblique slot and a second oblique slot are respectively provided on the first oblique crease line and the second oblique crease line; the first oblique insertion tongue and the second oblique insertion tongue are respectively inserted and fixed in the first oblique slot and the second oblique slot.

[0024] Compared with the prior art, the advantages and positive effects of the present invention are:

[0025] The above-mentioned packaging box is made of folded paperboard, has no glue, does not need pasting, is environmentally friendly and has low cost. At the same time, the packaging box has a two-layer structure, and the accessory box area of ​​the lower layer can play a secondary buffering role for the side of the upper main box type, which can replace EVA, blister and other buffering materials and has strong support. It can also be used for displaying different electronic products and has strong versatility.

[0026] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 The plane of the packaging box of the present invention is unfolded Figure 1 ;

[0029] Figure 2 The plane of the packaging box of the present invention is unfolded Figure 2 ;

[0030] Figure 3 The folding process of the packaging box of the present invention is shown in FIG. Figure 1 ;

[0031] Figure 4 The folding process of the packaging box of the present invention is shown in FIG. Figure 2 ;

[0032] Figure 5 The folding process of the packaging box of the present invention is shown in FIG. Figure 3 ;

[0033] Figure 6 It is a three-dimensional diagram of the packaging box of the present invention. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0035] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] Reference Figure 1-Figure 6 , is an embodiment of the packaging box of the present invention. The packaging box of the present invention is a display color box for Bluetooth headsets. The packaging box is folded from a cut and formed cardboard, which is a paper folding structure. The whole is a cube, and has an upper and lower two-layer structure. The upper layer is the product main box area B, which is used to place the Bluetooth headset body; the lower layer is the accessory box area C, which is used to place accessories. Specifically, the packaging box structure of the present invention includes a shell A, a product main box area B and an accessory box area C arranged in the shell. The shell has a top surface A4, a bottom surface A2 and a side surface around it. The top surface A4 of the shell is provided with a middle hollow area for setting a display window E. Preferably, the display window is a PET flip window. After folding, the product main box area forms a shell structure with an inner cavity and a missing top surface, and the top of the product main box area is arranged opposite to the display window E. The product is arranged in the product main box area and can be displayed through the display window. After folding, the accessory box area forms a shell structure with an inner cavity, and is supported between the product main box area and the bottom surface of the shell.

[0037] The above-mentioned packaging box is made of folded paperboard, has no glue, does not need pasting, is environmentally friendly and has low cost. At the same time, the packaging box has a two-layer structure, and the accessory box area of ​​the lower layer can play a secondary buffering role for the side of the upper main box type, which can replace EVA, blister and other buffering materials and has strong support. It can also be used for displaying different electronic products and has strong versatility.

[0038] The housing A comprises a right side surface A1, a bottom surface A2, a left side surface A3 and a top surface A4 which are sequentially connected by fold lines, and two sides of the top surface are respectively connected to a front side surface A5 and a connecting side surface A6.

[0039] The folding and fixing method of the main box area B of the product is as follows:

[0040] The product main box area B includes an external buffer structure B1, which includes a bottom external buffer surface B11, a left external buffer surface B12, a right external buffer surface B13, a rear external buffer surface B14, and a front external buffer surface B15. The bottom external buffer surface B11 is connected to the connecting side surface A6, the left external buffer surface B12, the right external buffer surface B13, and the front external buffer surface B15 are respectively connected to the bottom external buffer surface B11, and the rear external buffer surface B14 is connected to the front external buffer surface B15; the product main box area is fixed to a shell structure with an inner cavity by a tongue and slot structure.

[0041] The main box area of ​​the product also includes an inner buffer structure, which is located on the inner side of the outer buffer structure. The inner buffer structure includes a bottom inner buffer surface B21, a left inner buffer surface B22, a right inner buffer surface B23, a rear inner buffer surface B24, and a front inner buffer surface B25; the front inner buffer surface B25, the bottom inner buffer surface B21, and the rear inner buffer surface B24 are connected in sequence and are located between the front outer buffer surface B15 and the rear outer buffer surface B14, the front inner buffer surface B25 is connected to the front outer buffer surface B15 through the first connecting surface L1, and the rear inner buffer surface B24 is connected to the rear outer buffer surface B14 through the second connecting surface L2; the rear inner buffer surface B24 is connected to the left inner buffer surface B22; the right inner buffer surface B23 is connected to the right outer buffer surface B13 through the third connecting surface L3; the left outer buffer surface B12 is connected to the fourth connecting surface L4; after the main box area of ​​the product is folded, the inner buffer structure and the outer buffer structure are surrounded by a shell structure with a cavity, and there is a hollow inner cavity between the inner buffer structure and the outer buffer structure.

[0042] A first bottom surface inserting tongue b11 is provided at the fold edge between the front inner buffer surface B25 and the bottom inner buffer surface B21; a second bottom surface inserting tongue b12 is provided at the fold edge between the rear inner buffer surface B24 and the bottom inner buffer surface B21, a third bottom surface inserting tongue b13 is provided on one side of the left inner buffer surface B22, and a fourth bottom surface inserting tongue b14 is provided on one side of the right inner buffer surface B23; a first bottom surface slot b110, a second bottom surface slot b120, a third bottom surface slot b130, and a fourth bottom surface slot b140 are respectively provided on the bottom outer buffer surface B11; the bottom inner buffer surface B21 is superimposed on the bottom outer buffer surface B11, and the first bottom surface inserting tongue b11, the second bottom surface inserting tongue b12, the third bottom surface inserting tongue b13, and the fourth bottom surface inserting tongue b14 are respectively inserted and fixed in the first bottom surface slot b110, the second bottom surface slot b120, the third bottom surface slot b130, and the fourth bottom surface slot b140.

[0043] A first top surface inserting tongue b21 is arranged on the other side of the left inner buffer surface B22. Correspondingly, a lap plate is connected on the fourth connecting surface L4, and a first top surface slot b210 is arranged on the fold edge therebetween. The first top surface inserting tongue b21 is inserted into the first top surface slot b210.

[0044] A first middle plug tongue b31 and a second middle plug tongue b32 are respectively arranged on both sides of the front inner buffer surface B25. Correspondingly, the left inner buffer surface B22 is connected to the lap plate, and a first middle slot b310 cooperating with the first middle plug tongue is arranged on the fold edge therebetween; one side of the right inner buffer surface B23 is connected to the lap plate, and a second middle slot b320 cooperating with the second middle plug tongue is arranged on the fold plate therebetween; a third middle plug tongue b33 is arranged on the rear inner buffer surface B24, and the other side of the right inner buffer surface B23 is connected to the lap plate, and a third middle slot b330 cooperating with the third middle plug tongue is arranged on the fold plate therebetween.

[0045] A bottom inserting tongue b41 is provided on the rear outer buffer surface, and a bottom slot b410 is provided on the fold edge between the bottom outer buffer surface B11 and the connecting side surface A6.

[0046] b11 and b110, b12 and b120, b13 and b130, b14 and b140 are interlaced, b21 and b210 are interlaced, b31 and b310, b32 and b320 are interlaced, and the inner buffer structure B2 of the product main box area is closed; b41 and b410 are interlaced, b21 and b210 are interlaced, the outer buffer structure B1 of the product main box area is closed, B21 and B11 are attached, and the entire product main box area is completed, refer to Figure 3 ,.

[0047] The folding and fixing method of the accessory box area C is as follows:

[0048] The accessory box area C includes the accessory rear side surface C1, the accessory top surface C2, the accessory front side surface C3, the accessory bottom surface C4, and the accessory left side surface C5 and the accessory right side surface C6 located on both sides of the accessory rear side surface C1, which are sequentially connected to the bottom surface through crease lines; the accessory box area is fixed to a shell structure with an inner cavity through a tongue and slot structure. The connecting side surface A6 and the accessory rear side surface C1 form the rear side surface of the shell.

[0049] An accessory bottom inserting tongue c11 is arranged on the fold line between the accessory bottom surface C4 and the bottom surface A2, and an accessory bottom slot c110 matching with the accessory bottom inserting tongue c11 is arranged on the fold line between the accessory rear side surface C1 connected to the lap plate.

[0050] A first accessory top plug tongue c21 and a second accessory top plug tongue c22 are respectively arranged on both sides of the accessory top surface C2; ​​correspondingly, the accessory left side surface C5 is connected to the lap plate, and a first accessory top slot c210 is arranged on the crease line therebetween; the accessory right side surface C6 is connected to the lap plate, and a second accessory top slot c220 is arranged on the crease line therebetween.

[0051] A first accessory insert tongue c31 and a second accessory insert tongue c32 are respectively provided on both sides of the front side surface C3 of the accessory; correspondingly, a lap plate is connected to the right side surface C6 of the accessory, and a first accessory slot c310 is provided on the fold line therebetween; a lap plate is connected to the left side surface C5 of the accessory, and a second accessory slot c320 is provided on the fold line therebetween.

[0052] The fold line between the rear side surface C1 of the accessory and the top surface C2 of the accessory is provided with a middle connecting slot a110, and the second bottom surface inserting tongue b12 is fixed to the middle connecting slot, so that the product main box area B and the accessory box area C are plugged and fixed.

[0053] c11 and c110 are interlaced, c21 and c210, c22 and c210 are interlaced, c31 and c310 are interlaced, and the accessory box area is completed. Figure 4 .

[0054] The folding and fixing method of the shell is as follows:

[0055] The front side surface A5 is provided with a bottom inserting tongue a11, and the bottom surface A2 is connected to the overlapping plate, and a bottom slot a110 is provided corresponding to the fold line therebetween, and the bottom inserting tongue a11 is inserted into the bottom slot a110.

[0056] The front side surface A5 is provided with a first side plug-in tongue a21, the right side surface is connected to the lap plate, the right side surface A1 and the lap plate are provided with a first side slot a210, and the first side plug-in tongue a21 is inserted into the first side slot a210. The right side surface is provided with a second side plug-in tongue a22, the rear side surface C1 of the accessory is connected to the lap plate, the crease line therebetween corresponds to a second side slot a220, and the second side plug-in tongue a22 is inserted into the second side slot a220. The left side surface is provided with a third side plug-in tongue a23, the rear side surface C1 of the accessory is connected to the lap plate, the crease line therebetween corresponds to a third side slot a230, and the third side plug-in tongue a23 is inserted into the third side slot a230.

[0057] The right side A1 is provided with a top surface inserting tongue a31, and the top surface A4 is connected to the overlapping plate, and the folding line therebetween is provided with a top surface slot a310 correspondingly, and the top surface inserting tongue a31 is inserted into the top surface slot a310.

[0058] Furthermore, in this embodiment, the bottom surface of the packaging box is provided with a triangular chamfered surface, which can be placed and displayed in an oblique and horizontal position, providing a new placement and display mode.

[0059] A first oblique crease line h1 and a second oblique crease line h2 are respectively arranged on the bottom surface and the left side surface, and one end of the first oblique crease line h1 and the second oblique crease line h2 are connected, so that the bottom surface A2 and the left side surface A1 form an inner concave cavity after folding; a triangular inclined surface D1 is arranged on the front side surface, and after folding, the cover is arranged on the inner concave cavity to form a supporting bottom surface that can be tilted and lied.

[0060] The first oblique insertion tongue d11 and the second oblique insertion tongue d12 are respectively arranged on both sides of the triangular inclined surface; correspondingly, the first oblique slot d110 and the second oblique slot d120 are respectively arranged on the first oblique angle fold line and the second oblique angle fold line; the first oblique insertion tongue d11 and the second oblique insertion tongue d12 are respectively inserted and fixed in the first oblique slot d110 and the second oblique slot d120.

[0061] After a31 and a310 are forked together, the outer side of the packaging box forms a closed loop structure; after d11 and d110, d12 and d120 are forked together, the oblique supporting bottom surface is formed; after a21 and a210, a11 and a110 are forked together, the entire outer display surface of the packaging box is formed, refer to Figure 5 and Figure 6 .

[0062] The packaging box in this embodiment is made of G-corrugated paper with film coating, which has good support and is not easy to produce powder during transportation. The paper coating can reduce the friction of the paper support on the product surface. You can also use common film-coated white cardboard material, which has slightly worse support than corrugated paper, but can still meet the strength required for VTM verification.

[0063] The packaging box of the present invention has a whole paper box packaging without adhesive, strong support, low cost, strong versatility, simple operation, no need for pasting, and better environmental protection; the packaging box can be opened in a book-like manner from the connection between the product main box area and the accessory box area, and the product body and accessories can be displayed separately, and the new oblique and horizontal display method brings customers a different display and opening experience.

[0064] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A packaging box, which is a paper folding structure, and the packaging box is a cube as a whole, characterized in that: The invention comprises an outer shell, a main product box area and an accessory box area arranged in the outer shell; the outer shell is provided with a display window; the main product box area is folded to form a shell structure having an inner cavity and a top surface without a top surface, and the top of the main product box area is arranged opposite to the display window; the accessory box area is folded to form a shell structure having an inner cavity and supported between the main product box area and the outer shell; The housing comprises a right side surface, a bottom surface, a left side surface and a top surface connected in sequence by crease lines, and two sides of the top surface are respectively connected to the front side surface and the first rear side surface; one side of the bottom surface is connected to a connecting side surface; the display window is opened on the top surface; The product main box area includes an external buffer structure, which includes a bottom external buffer surface, a left external buffer surface, a right external buffer surface, a rear external buffer surface, and a front external buffer surface. The bottom external buffer surface is connected to the first rear side surface, the left external buffer surface, the right external buffer surface, and the front external buffer surface are respectively connected to the bottom external buffer surface, and the rear external buffer surface is connected to the front external buffer surface; the product main box area is fixed to a shell structure with an inner cavity by a tongue-and-slot structure; The accessory box area includes an accessory top surface, an accessory front side surface, an accessory bottom surface, and an accessory left side surface and an accessory right side surface located on both sides of the second rear side surface, which are connected to the second rear side surface in sequence through crease lines; the accessory box area is fixed to a shell structure with an inner cavity through a tongue-and-slot structure; The connecting side surface and the accessory rear side surface form the rear side surface of the housing.

2. The packaging box according to claim 1, characterized in that: The product main box area also includes an inner buffer structure, which is located on the inner side of the outer buffer structure; the inner buffer structure includes a bottom inner buffer surface, a left inner buffer surface, a right inner buffer surface, a rear inner buffer surface, and a front inner buffer surface; the front inner buffer surface, the bottom inner buffer surface, and the rear inner buffer surface are connected in sequence and are located between the front outer buffer surface and the rear outer buffer surface, the front inner buffer surface is connected to the front outer buffer surface via a first connecting surface, and the rear inner buffer surface is connected to the rear outer buffer surface via a second connecting surface; the rear inner buffer surface is connected to the left inner buffer surface; the right inner buffer surface is connected to the right outer buffer surface via a third connecting surface; the left outer buffer surface is connected to a fourth connecting surface; after the product main box area is folded, the inner buffer structure and the outer buffer structure are surrounded by a shell structure with a cavity, and there is a hollow inner cavity between the inner buffer structure and the outer buffer structure.

3. The packaging box according to claim 2, characterized in that: A first bottom surface inserting tongue is arranged at the fold edge between the front inner buffer surface and the bottom inner buffer surface; a second bottom surface inserting tongue is arranged at the fold edge between the rear inner buffer surface and the bottom inner buffer surface, a third bottom surface inserting tongue is arranged at one side of the left inner buffer surface, and a fourth bottom surface inserting tongue is arranged at one side of the right inner buffer surface; a first bottom surface slot, a second bottom surface slot, a third bottom surface slot, and a fourth bottom surface slot are respectively arranged on the bottom outer buffer surface; the bottom inner buffer surface is superimposed on the bottom outer buffer surface, and the first bottom surface inserting tongue, the second bottom surface inserting tongue, the third bottom surface inserting tongue, and the fourth bottom surface inserting tongue are respectively inserted and fixed in the first bottom surface slot, the second bottom slot, the third bottom slot, and the fourth bottom slot; The other side of the left inner buffer surface is provided with a first top surface inserting tongue, and correspondingly, the fourth connecting surface is connected with a lap plate, and a first top surface slot is provided at the fold edge between them. A first middle plug-in tongue and a second middle plug-in tongue are respectively arranged on both sides of the front inner buffer surface. Correspondingly, the left inner buffer surface is connected to the lap plate, and a first middle slot cooperating with the first middle plug-in tongue is arranged on the fold edge therebetween; one side of the right inner buffer surface is connected to the lap plate, and a second middle slot cooperating with the second middle plug-in tongue is arranged on the fold plate therebetween; a third middle plug-in tongue is arranged on the rear inner buffer surface, and the other side of the right inner buffer surface is connected to the lap plate, and a third middle slot cooperating with the third middle plug-in tongue is arranged on the fold plate therebetween.

4. The packaging box according to claim 3, characterized in that: An accessory bottom insert tongue is arranged on the fold line between the bottom surface of the accessory, and the rear side surface of the accessory is connected to the lap plate, and an accessory bottom slot matching with the accessory bottom insert tongue is arranged on the fold line between them; A first accessory top inserting tongue and a second accessory top inserting tongue are respectively arranged on both sides of the accessory top surface; correspondingly, the left side of the accessory is connected to the lap plate, and a first accessory top slot is arranged on the fold line therebetween; the right side of the accessory is connected to the lap plate, and a second accessory top slot is arranged on the fold line therebetween; The first accessory middle tongue and the second accessory middle tongue are respectively arranged on both sides of the front side of the accessory; correspondingly, the right side of the accessory is connected with a lap plate, and the first accessory middle slot is arranged on the fold line therebetween; the left side of the accessory is connected with a lap plate, and the second accessory middle slot is arranged on the fold line therebetween.

5. The packaging box according to claim 4, characterized in that: A middle connecting slot is arranged at a fold line between the rear side surface of the accessory and the top surface of the accessory, and the second bottom surface inserting tongue is fixed to the middle connecting slot.

6. The packaging box according to claim 5, characterized in that: The front side surface is provided with a bottom plug tongue, the bottom surface is connected to the lap plate, and the fold line therebetween is provided with a bottom slot corresponding to the fold line therebetween; The front side surface is provided with a first side plug tongue, the right side surface is connected to the lap plate, and the right side surface and the lap plate are provided with a first side slot; the right side surface is provided with a second side plug tongue, the rear side surface of the accessory is connected to the lap plate, and the second side slot is provided corresponding to the crease line therebetween; the left side surface is provided with a third side plug tongue, the rear side surface of the accessory is connected to the lap plate, and the third side slot is provided corresponding to the crease line therebetween; The right side surface is provided with a top surface inserting tongue, and the top surface is connected to the lap plate, and the fold line therebetween is provided with a top surface slot corresponding to the fold line therebetween.

7. The packaging box according to claim 6, characterized in that: The bottom surface and the left side surface are respectively provided with a first oblique crease line and a second oblique crease line, and one end of the first oblique crease line and the second oblique crease line are connected, so that the bottom surface and the left side surface form an inner concave cavity after folding; the front side surface is provided with a triangular inclined surface, and the cover is arranged on the inner concave cavity after folding.

8. The packaging box according to claim 7, characterized in that: The first oblique insertion tongue and the second oblique insertion tongue are respectively arranged on both sides of the triangular inclined surface; correspondingly, the first oblique slot and the second oblique slot are respectively arranged on the first oblique fold line and the second oblique fold line; the first oblique insertion tongue and the second oblique insertion tongue are respectively inserted and fixed in the first oblique slot and the second oblique slot.

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