Double-layer easy-to-tear packaging box

By setting a double-layer easy-tear structure with inner and outer easy-tear layers on the packaging box, the problem of easy-tear lines breaking under pressure is solved, achieving higher reliability and stability.

CN223764946UActive Publication Date: 2026-01-06杭州顶正包材有限公司
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Patent Information

Application Number
CN202520101211.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2026-01-06
Estimated Expiration
2035-01-16

AI Technical Summary

Technical Problem

The tear lines on existing easy-tear packaging boxes are prone to breakage due to compression during transportation, resulting in poor reliability.

Method used

It adopts a double-layer easy-tear structure, with the inner easy-tear layer and the outer easy-tear layer respectively set on the top sheet and the cover sheet. The packaging box is only fully opened when both are torn, which enhances reliability.

Benefits of technology

The double-layer easy-tear structure reduces the probability of accidental opening due to compression, thus improving the reliability of the packaging box.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a double-layer easy-to-tear packing box which comprises a top piece, a first side piece, a bottom piece and a second side piece, a first end piece and a second end piece are arranged at the two ends of the top piece, and the first side piece, the second side piece, the top piece, the bottom piece, the first end piece and the second end piece are matched together to form a box body. The top piece and the first side piece are provided with a first easy-to-tear fracture line, the first easy-to-tear fracture line is a half-square-shaped first easy-to-tear fracture line, one end of the covering piece is provided with a fracture piece, the other end of the covering piece is connected with the second side piece, and the second side piece is provided with a second easy-to-tear fracture line. And a partial area of the fracture piece is bonded and matched with the second side piece. Compared with the prior art, the packaging box has the advantages that the inner easy-to-tear layer is formed by the top piece and the first easy-to-tear line on the first side piece, the outer easy-to-tear layer is formed by the covering piece and the breaking piece, only when the inner easy-to-tear layer and the outer easy-to-tear layer are torn, the whole packaging box can be in a torn state, and reliability is higher.
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Description

Technical Field

[0001] This utility model relates to the field of packaging boxes, and in particular to a double-layer easy-tear packaging box. Background Technology

[0002] Easy-tear packaging boxes are a commonly used type of packaging box. The current structure of easy-tear packaging boxes is shown in patent publication document CN213678057U. There is a problem with this type of easy-tear box in use, that is, the easy-tear layer of this packaging box is a single layer. If the entire packaging box is squeezed during transportation, the easy-tear line is prone to breakage, causing the entire easy-tear layer to break open due to the squeezing force. Therefore, the reliability is relatively poor. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes a double-layer easy-tear packaging box. The top sheet and the first easy-tear line on the first side sheet form the inner easy-tear layer, while the cover sheet and the break sheet form the outer easy-tear layer. Only when both the inner and outer easy-tear layers are torn open will the entire packaging box be in a torn state, reducing the probability of the box opening due to compression and making it more reliable.

[0004] The technical solution adopted by this utility model is as follows:

[0005] A double-layer easy-tear packaging box includes a top sheet, a first side sheet, a bottom sheet, and a second side sheet. The top sheet has a first end piece and a second end piece at both ends. The first side sheet, second side sheet, top sheet, bottom sheet, first end piece, and second end piece are joined together to form a box body. The top sheet and the first side sheet have a first easy-tear tear line. The box also includes a cover sheet. The first easy-tear tear line is a semi-U-shaped first easy-tear tear line. One end of the cover sheet has a tear piece, and the other end of the cover sheet is connected to the second side sheet. A portion of the tear piece is bonded to the second side sheet. The tear piece has a second easy-tear tear line. The cover sheet is attached tightly to the top sheet, and the shape and size of the cover sheet are consistent with the shape and size of the top sheet.

[0006] In this type of easy-tear packaging box, the first easy-tear line on the top piece and the first side piece forms the inner easy-tear layer, while the cover piece and the break piece form the outer easy-tear layer. Only when both the inner and outer easy-tear layers are torn open will the entire packaging box be in a torn state, reducing the probability of the box opening due to compression and making it more reliable.

[0007] When this type of packaging box is torn open, first tear along the second easy-tear tear line on the broken piece. Part of the broken piece remains stuck to the first side piece, while the other part of the broken piece, together with the cover piece, forms the outer cover. Tear along the first easy-tear tear line on the top piece and the first side piece to form the inner cover. Only when the inner cover and the outer cover are both torn open is the entire packaging box in the open state.

[0008] Optionally, one end of the top piece is provided with an auxiliary adhesive piece, which is bonded together with the second side piece.

[0009] The function of the secondary adhesive piece is to bond and cooperate with the second side piece to form the large frame of the box.

[0010] Optionally, the two ends of the substrate are provided with a first inner adhesive sheet and a second inner adhesive sheet, the first inner adhesive sheet being bonded to the first end piece, and the second inner adhesive sheet being bonded to the second end piece.

[0011] The first inner adhesive sheet is bonded to the first end piece, and the second inner adhesive sheet is bonded to the second end piece. This is to ensure that the entire box has high stability.

[0012] Optionally, the first side piece is provided with flaps at both ends, and the second side piece is provided with flaps at both ends, the flaps being attached to the first inner adhesive piece or the second inner adhesive piece.

[0013] The wing can support the first inner sheet or the second inner sheet.

[0014] Optionally, a bayonet is provided on the first side piece.

[0015] The purpose of the latch is to lock the outer cover in place, thereby enabling it to be resealed after being opened.

[0016] Optionally, it may also include a grille, which is slidably disposed within the housing.

[0017] The grille serves two purposes: firstly, it divides the space inside the box; secondly, it supports the top panel and the cover panel, reducing the probability of the box accidentally opening due to external pressure.

[0018] Optionally, the grille includes flat support plates and support plates. There are two support plates, which are connected by a connecting plate. One end of each support plate is connected to one of the flat support plates. The support plates are perpendicular to the flat support plates, and the connecting plate is close to the top plate.

[0019] The specific support piece supports the top piece through connecting pieces.

[0020] Optionally, the two flat support pieces are in the same plane, and the flat support pieces are close to the bottom piece, and the two support pieces are in a parallel and non-contact state.

[0021] The beneficial effects of this utility model are: the first tear line on the top piece and the first side piece forms the inner tear layer, while the cover piece and the break piece form the outer tear layer. Only when both the inner and outer tear layers are torn open will the entire packaging box be in a torn state, which reduces the probability of the box opening due to compression and makes it more reliable. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 This is a schematic diagram of the double-layered easy-tear packaging box when fully unfolded;

[0024] Figure 2 This is a schematic diagram of the state before the fractured piece is bonded to the first side piece;

[0025] Figure 3 This is a schematic diagram showing the state of the fractured piece after it has been bonded to the first side piece;

[0026] Figure 4 This is a schematic diagram showing the state of the grille before it is installed into the box.

[0027] Figure 5 This is a diagram showing the state of the double-layered easy-tear packaging box after it has been sealed.

[0028] Figure 6 This is a diagram showing the state of the double-layered easy-tear packaging box when opened.

[0029] The labels in the attached figures are as follows: 1. Auxiliary adhesive sheet; 2. Top sheet; 201. First end sheet; 202. Second end sheet; 20. Inner cover; 23. First tear line; 3. First side sheet; 301. Bayonet; 4. Bottom sheet; 401. First inner adhesive sheet; 402. Second inner adhesive sheet; 5. Second side sheet; 6. Covering sheet; 7. Breaking piece; 8. Wing piece; 901. Bottom support piece; 902. Support piece; 903. Connecting piece. Detailed Implementation

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0033] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 and appendix Figure 6 As shown, a double-layer easy-tear packaging box includes a top sheet 2, a first side sheet 3, a bottom sheet 4, and a second side sheet 5. The top sheet 2 has a first end piece 201 and a second end piece 202 at both ends. The first side sheet 3, the second side sheet 5, the top sheet 2, the bottom sheet 4, the first end piece 201, and the second end piece 202 are assembled together to form a box body. The top sheet 2 and the first side sheet 3 are provided with a first easy-tear tear line 23. The box also includes a cover sheet 6. The first easy-tear tear line 23 is a semi-U-shaped first easy-tear tear line 23. One end of the cover sheet 6 is provided with a tear piece 7. The other end of the cover sheet 6 is connected to the second side sheet 5. A part of the tear piece 7 is bonded to the second side sheet 5. The tear piece 7 is provided with a second easy-tear tear line. The cover sheet 6 is close to the top sheet 2, and the shape and size of the cover sheet 6 are the same as those of the top sheet 2.

[0034] In this type of easy-tear packaging box, the first easy-tear lines on the top piece 2 and the first side piece 3 form the inner easy-tear layer, while the cover piece 6 and the break piece 7 form the outer easy-tear layer. Only when both the inner and outer easy-tear layers are torn open will the entire packaging box be in a torn state, reducing the probability of the box opening due to compression and making it more reliable.

[0035] When this type of packaging box is torn open, it is first torn along the second easy-tear tear line on the broken piece 7. A part of the broken piece 7 remains stuck to the first side piece 3, while the other part of the broken piece 7, together with the cover piece 6, forms the outer cover. Tearing along the first easy-tear tear line 23 on the top piece 2 and the first side piece 3 forms the inner cover 20. When the inner cover 20 and the outer cover are both torn open, the entire packaging box is in the open state.

[0036] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 and appendix Figure 6 As shown, an auxiliary adhesive sheet 1 is provided at one end of the top sheet 2, and the auxiliary adhesive sheet 1 is bonded together with the second side sheet 5.

[0037] The function of the secondary adhesive piece is to bond and cooperate with the second side piece 5 to form the large frame of the box.

[0038] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 and appendix Figure 6 As shown, the two ends of the film 4 are provided with a first inner adhesive sheet 401 and a second inner adhesive sheet 402. The first inner adhesive sheet 401 is bonded to the first end piece 201, and the second inner adhesive sheet 402 is bonded to the second end piece 202.

[0039] The first inner adhesive sheet 401 is bonded together with the first end piece 201, and the second inner adhesive sheet 402 is bonded together with the second end piece 202. This is to ensure that the entire box has high stability.

[0040] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 and appendix Figure 6 As shown, the first side piece 3 has wing pieces 8 at both ends, and the second side piece 5 has wing pieces 8 at both ends. The wing pieces 8 are attached to the first inner adhesive piece 401 or the second inner adhesive piece 402.

[0041] The wing 8 can provide support for the first inner adhesive sheet 401 or the second inner adhesive sheet 402.

[0042] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 and appendix Figure 6 As shown, a bayonet 301 is provided on the first side piece 3.

[0043] The function of the latch 301 is to lock the outer cover in place, thereby achieving resealing after the cover has been opened.

[0044] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 and appendix Figure 6 As shown, it also includes a grille, which is slidably disposed within the box.

[0045] The grille is a separate component inside the box. When folded, the grille has the same area as the bottom panel. After sliding into the box from the side, it is stably held in place on all four sides. Therefore, the grille serves two purposes: first, it divides the space inside the box; second, it supports the top panel 2 and the cover panel 6, reducing the probability of the box accidentally opening due to external pressure.

[0046] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 and appendix Figure 6 As shown, the grille includes flat support plates and support plates 902. There are two support plates 902, which are connected by a connecting plate 903. One end of each support plate 902 is connected to a flat support plate. The support plate 902 is perpendicular to the flat support plate, and the connecting plate 903 is close to the top plate 2.

[0047] Specifically, the support piece 902 supports the top piece 2 through the connecting piece 903.

[0048] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 and appendix Figure 6 As shown, the two flat support pieces are in the same plane and the flat support pieces are close to the bottom piece 4. The two support pieces 902 are in a parallel and non-contact state.

[0049] Need to attach Figure 1 It should be noted that the appendix Figure 1 The dot matrix area in the image is the adhesive application area.

[0050] The above-described embodiments only illustrate some aspects of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A double-layer easy-tear packaging box, comprising a top sheet, a first side sheet, a bottom sheet, and a second side sheet, wherein the top sheet has a first end piece and a second end piece at both ends, the first side sheet, the second side sheet, the top sheet, the bottom sheet, the first end piece, and the second end piece are joined together to form a box body, and a first easy-tear tear line is provided on the top sheet and the first side sheet, characterized in that, The first easy-tear fracture line is a half-rectangular first easy-tear fracture line, one end of the cover sheet is provided with a fracture sheet, the other end of the cover sheet is connected with the second side sheet, a part of the fracture sheet is bonded with the second side sheet, a second easy-tear fracture line is arranged on the fracture sheet, the cover sheet is attached to the top sheet, and the cover sheet has the same size and shape as the top sheet.

2. A double-layered tear-open packaging box according to claim 1, wherein, One end of the top sheet is provided with an auxiliary adhesive sheet, and the auxiliary adhesive sheet is bonded with the second side sheet.

3. A double-layered tear-open packaging box according to claim 1, wherein, Two ends of the bottom sheet are provided with a first inner adhesive sheet and a second inner adhesive sheet, the first inner adhesive sheet is bonded with the first end sheet, and the second inner adhesive sheet is bonded with the second end sheet.

4. A double-layered tear-open packaging box according to claim 3, wherein, Two ends of the first side sheet are provided with flaps, and two ends of the second side sheet are provided with flaps, the flaps are attached to the first inner adhesive sheet or the second inner adhesive sheet.

5. A double-layered tear-open packaging box according to claim 1, wherein, A card slot is arranged on the first side sheet.

6. A double-layered tear-open packaging box according to claim 1, wherein, A grid is further included, and the grid is slidingly arranged in the box body.

7. A double-layered tear-open packaging box according to claim 6, wherein, The grid includes flat support sheets and support sheets, the two support sheets are connected through a connecting sheet, one end of each support sheet is connected with a flat support sheet, the support sheet is perpendicular to the flat support sheet, and the connecting sheet is attached to the top sheet.

8. A double-layered tear-open packaging box according to claim 7, wherein, The two flat support sheets are in the same plane and are attached to the bottom sheet, and the two support sheets are parallel and not in contact.

Citation Information

Patent Citations

  • Smooth-to-tear paper packaging box

    CN213678057U