Foldable packaging box

By designing a foldable packaging box and utilizing longitudinal and transverse frame structures and adhesive bonding, the problem of large space occupation by non-foldable boxes was solved, achieving the effects of space saving and enhanced strength.

CN223905479UActive Publication Date: 2026-02-13TIANJIN LAIBANYA PAPER CO LTD
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Patent Information

Application Number
CN202520661603.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-02-13
Estimated Expiration
2035-04-09

AI Technical Summary

Technical Problem

Existing non-foldable cake boxes require a large amount of space for transportation and storage, leading to increased transportation and storage costs.

Method used

Design a foldable packaging box that uses a longitudinal and transverse frame structure, with the vertical cross folding of a first cardboard and a second cardboard, combined with glue and adhesive layers to form a six-sided closed cube. The inner box provides storage space and cushions external impacts.

Benefits of technology

This reduces the need for transportation and storage space, lowers costs, and enhances the overall strength and protective effect of the packaging box.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of packaging boxes, and discloses a foldable packaging box which comprises a first paper board, a second paper board and a third paper board. The first paper board and the second paper board are arranged in a perpendicular crossing mode, the second paper board is transversely folded to form a transverse frame in an enclosing mode, and the longitudinal frame and the transverse frame jointly form a cube with six closed faces in an enclosing mode; and the inner box is mounted on the first paperboard. According to the utility model, the first paperboard and the second paperboard can be respectively folded into a flat shape along the crease grooves, and each part of the inner box can be pre-folded, so that the occupied space is reduced, the inner box can be stored with a smaller volume during transportation and storage, and the transportation and storage cost is reduced; therefore, the overall strength of the packaging box is enhanced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of packing box especially relates to a foldable packing box. BACKGROUND

[0002] Foldable packing box usually includes side plate, bottom plate and top plate, by combining side plate, bottom plate and top plate, foldable packing box can enclose articles, realize the packing of object, wherein cake packing box is usually designed separately by three parts of box bottom, box body and box cover, needs independent stacking when transporting, leading to packing volume reaching 3-5 times of finished product volume.

[0003] Most of the cake box body is manufactured in a fixed state ready for use, that is, a non-foldable box body is delivered to the user, however, this non-foldable box body needs a large transportation space or storage space because it presents a three-dimensional state, leading to increased transportation and storage space. SUMMARY

[0004] To solve the above-mentioned problems, the utility model realizes the following technical scheme.

[0005] A foldable packing box, comprising: a first paperboard, which is folded longitudinally to form a longitudinal frame; a second paperboard, the first paperboard and the second paperboard are arranged perpendicularly, the second paperboard is folded transversely to form a transverse frame, and the longitudinal frame and the transverse frame jointly enclose a six-faced closed cube; and an inner box, which is installed on the first paperboard.

[0006] Preferably, a plurality of first crease grooves are formed on the first paperboard, the plurality of first crease grooves separate the first paperboard into a bottom surface, a back surface, a top surface and a front surface, and the inner box is installed on the bottom surface of the first paperboard.

[0007] Preferably, a plurality of second crease grooves are formed on the second paperboard, the plurality of second crease grooves separate the second paperboard into a back surface, a left side surface, a right side surface and a front surface, the back surface of the first paperboard is arranged in overlap with the back surface of the second paperboard, and the front surface of the first paperboard overlaps with the front surface of the second paperboard.

[0008] Preferably, the back surface of the first paperboard and the back surface of the second paperboard are connected by glue.

[0009] Preferably, a first adhesive layer is connected to the second paperboard, and the second paperboard is connected to the inner box by the first adhesive layer.

[0010] Preferably, the inner box comprises: a bottom plate, which is installed on the bottom surface of the first paperboard; and two side plates, which are installed on the bottom plate and arranged symmetrically, and the bottom plate and the two side plates form a placing space.

[0011] Preferably, the bottom plate comprises: a support plate, an inwardly folded plate installed in one side of the bottom plate, and another inwardly folded plate installed in another side of the bottom plate.

[0012] Preferably, the side plate comprises: a first connecting plate installed in one side of the side plate close to the support plate, one side of the first connecting plate connected with the second paperboard through a second adhesive layer, and the support plate connected with the other side of the first connecting plate through a third adhesive layer; and a second connecting plate installed in one side of the side plate close to the inwardly folded plate, the inwardly folded plate folded along the second connecting plate and arranged in the folded position.

[0013] The utility model provides a kind of foldable packaging box.Compared with prior art, it has the following beneficial effects: the first paperboard and the second paperboard of the present scheme can be respectively folded into flat along the crease groove, and the components of the inner box can also be pre-folded, reducing the occupied space, and can be stored in smaller volume during transportation and storage, reducing transportation and storage costs, the first paperboard and the second paperboard are vertically crossed and bonded back by glue, and are collectively enclosed into a six-face closed cube, greatly enhancing the overall strength of the packaging box, the design of the inner box not only provides a storage space, but also effectively buffers external force impact. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The utility model provides a three-dimensional structure schematic diagram.

[0015] Figure 2 The utility model provides a first paperboard unfolded schematic diagram.

[0016] Figure 3 The utility model provides a second paperboard unfolded schematic diagram.

[0017] Figure 4 The utility model provides a first paperboard and second paperboard unfolded schematic diagram.

[0018] Figure 5 The utility model provides an inner box structure schematic diagram.

[0019] Figure 6 The utility model provides an inner box unfolded schematic diagram.

[0020] The reference signs in the drawings are:

[0021] 100, first paperboard; 101, first crease groove;

[0022] 200, second paperboard; 201, second crease groove; 202, first adhesive layer;

[0023] 300, inner box; 301, bottom plate; 302, side plate; 303, first connecting plate; 304, second connecting plate; 305, supporting plate; 306, inner folding plate; 307, second adhesive layer; 308, third adhesive layer. DETAILED DESCRIPTION

[0024] The utility model is further explained in combination with specific embodiments, and it should be understood that these embodiments are only used for explaining the utility model and are not used for limiting the protection scope of the utility model.

[0025] The embodiments of the utility model are explained below through specific examples, and other advantages and effects of the utility model can be easily understood by those skilled in the art from the disclosure of the specification. The utility model can also be implemented or applied through other different specific embodiments, and various modifications or changes can be made to the details in the specification based on different viewpoints and applications without departing from the spirit of the utility model.

[0026] REFERENCE Figures 1-6 A foldable packaging box comprises: a first paperboard 100, which is folded longitudinally to form a longitudinal frame; and a second paperboard 200, which is arranged perpendicularly to the first paperboard 100 and is folded transversely to form a transverse frame, and the longitudinal frame and the transverse frame jointly form a six-surface closed cubic space; and an inner box 300, which is mounted on the first paperboard 100.

[0027] In the embodiment, the first paperboard 100 plays a key role in constructing the longitudinal frame in the whole packaging box structure. It is folded longitudally to form a longitudinal frame, which provides vertical support and stability for the packaging box. The second paperboard 200 is arranged perpendicularly to the first paperboard 100 and is folded transversely to form a transverse frame. The transverse frame is tightly matched with the longitudinal frame formed by the first paperboard 100 to jointly form a six-surface closed cubic space, which provides all-round protection for the articles. The inner box 300 is mounted on the bottom surface of the first paperboard 100 and is mainly used for providing a more conformal and delicate placement space for the articles to be packaged and buffering the external force impact on the articles to a certain extent, thereby providing better protection.

[0028] A plurality of first crease grooves 101 are formed in the first paperboard 100, which divide the first paperboard 100 into a bottom surface, a back surface, a top surface and a front surface, and the inner box 300 is mounted on the bottom surface of the first paperboard 100.

[0029] The first crease groove 101 separates the first paperboard 100 into a bottom surface, a back surface, a top surface and a front surface. After folding, the bottom surface is used to carry the goods, providing a stable foundation for the entire package; the back surface cooperates with the back surface of the second paperboard 200 to connect, enhancing the strength and stability of the back wall of the package; the top surface is used to close the top of the package space; the front surface is presented externally after the package is completed, which can be used for printing brand logo, product information, etc., playing a role in propaganda and display.

[0030] The second paperboard 200 is provided with a plurality of second crease grooves 201, which separate the second paperboard 200 into a back surface, a left side surface, a right side surface and a front surface. The back surface of the first paperboard 100 overlaps with the back surface of the second paperboard 200, and the front surface of the first paperboard 100 overlaps with the front surface of the second paperboard 200.

[0031] The second crease groove 201 separates the second paperboard 200 into a back surface, a left side surface, a right side surface and a front surface. Among them, the back surface of the second paperboard 200 is arranged in overlap with the back surface of the first paperboard 100, and the two are connected by glue, further enhancing the strength and sealing of the back wall of the package; the left side surface and the right side surface of the second paperboard 200 are respectively located on the left and right sides of the package, cooperating with the bottom surface and the top surface of the first paperboard 100 to form the side surface of the package; the front surface of the second paperboard 200 overlaps with the front surface of the first paperboard 100, which also increases the thickness and stability of the front wall of the package to a certain extent.

[0032] The back surface of the first paperboard 100 is connected with the back surface of the second paperboard 200 by glue.

[0033] The second paperboard 200 is connected with the first adhesive layer 202, and the second paperboard 200 is connected with the inner box 300 through the first adhesive layer 202. The first adhesive layer adopts double-sided tape, magic tape or magnetic piece. The double-sided tape is used as the connection structure and cannot be disassembled after being pasted, and has good firmness. The magic tape or the magnetic piece is used as the connection structure and can be disassembled after being connected, and has good flexibility.

[0034] The inner box 300 comprises a bottom plate 301 installed on the bottom surface of the first paperboard 100, two side plates 302 symmetrically installed on the bottom plate 301, and a placing space formed by the bottom plate 301 and the two side plates 302.

[0035] The inner box 300 is composed of the bottom plate 301 and the side plate 302, and the bottom plate 301 and the side plate 302 can be connected by folding.

[0036] The side plate 302 comprises a first connecting plate 303 installed on one side of the side plate 302 close to the support plate 305, one side of the first connecting plate 303 is connected with the second paper plate 200 through a second adhesive layer 307, and the support plate 305 is connected with the other side of the first connecting plate 303 through a third adhesive layer 308; and a second connecting plate 304 installed on one side of the side plate 302 close to the inward folding plate 306, the inward folding plate 306 is folded along the second connecting plate 304, and the second connecting plate 304 is arranged in the folded position.

[0037] The second adhesive layer 307 and the third adhesive layer 308 can be double-sided adhesive tape, magic tape or magnetic pieces, wherein the double-sided adhesive tape is used as the connecting structure and cannot be disassembled again after being pasted, and has good firmness; the magic tape or the magnetic piece is used as the connecting structure and can be disassembled again after being connected, and has good flexibility.

[0038] In use, the first paper plate 100 is longitudinally folded along the first crease groove 101 to form a longitudinal frame, at this time, the back, the top, the front and the bottom are perpendicular in turn, which is convenient for subsequent assembly with the second paper plate 200, and the folded plate is flat, which is convenient for transportation and storage. The second paper plate 200 is transversely folded along the second crease groove 201 to form a transverse frame, the left side, the front, the right side and the back are perpendicular in turn, and the folded plate is also flat, which reduces the space occupation. The bottom plate 301 of the inner box 300 is partially pre-folded along the inward folding plate 306 corresponding to the second connecting plate 304 of the side plate 302, which is convenient for subsequent assembly; the first connecting plate 303 and the second connecting plate 304 of the side plate 302 are pre-processed to facilitate rapid forming.

[0039] The first paperboard 100 is erected with the bottom surface in a horizontal state as the base support of the entire packaging box, the second paperboard 200 is placed perpendicularly across the first paperboard 100 with the back surfaces of the two aligned, the back surface of the first paperboard 100 is firmly bonded to the back surface of the second paperboard 200 using glue to form the rear wall of the packaging box. At this time, the first paperboard 100 and the second paperboard 200 together enclose a preliminary six-sided closed cubic frame, the bottom plate 301 of the inner box 300 is placed on the bottom surface of the first paperboard 100, the two side plates 302 are folded upright, the first connecting plate 303 on the side plate 302 is connected to the second paperboard 200, then the support plate 305 is folded upright, the first connecting plate 303 is clamped between the second paperboard 200 and the support plate 305, the inward folding plate 306 of the bottom plate 301 of the inner box 300 is folded along the second connecting plate 304, and the second connecting plate 304 is folded into the folding gap of the inward folding plate 306 to further stabilize the structure of the inner box 300, and the installation of the inner box 300 is completed. At this time, the inner box 300 is tightly combined with the main body of the packaging box to form a complete packaging space with a fine placement space and capable of buffering external force impact.

[0040] Compared with the prior art, the present application has the following advantages:

[0041] The first paperboard 100 and the second paperboard 200 can be folded flat along the crease groove, and the components of the inner box 300 can also be pre-folded, reducing the occupied space and enabling smaller volume storage during transportation and storage, thereby reducing transportation and storage costs.

[0042] The connection of the second paperboard 200 with the inner box 300 and the connection between the components of the inner box 300 provides multiple connection options. For situations where the position of the inner box 300 needs to be frequently adjusted or the inner box 300 needs to be replaced, magic tape or magnetic pieces can meet the flexibility requirements; for transportation scenarios with high requirements for packaging firmness, double-sided tape can ensure that the packaging box remains firmly closed during transportation.

[0043] The first paperboard 100 and the second paperboard 200 are perpendicularly arranged and bonded by glue on the back surface, together enclosing a six-sided closed cubic frame, greatly enhancing the overall strength of the packaging box, and the design of the inner box 300 not only provides a placement space but also effectively buffers external force impact.

[0044] Thus, although the present application has been described herein with reference to particular embodiments thereof, modifications, alterations and substitutions are possible within the scope and spirit of the application as disclosed above and as claimed below, and it is understood that some features of the present application could be employed without a corresponding use of the other features, and in some instances, without departing from the scope and spirit of the application. Accordingly, many modifications can be made in the particular embodiments without departing from the scope and spirit of the application. The present application is not intended to be limited to the particular embodiments used in the following claims, and / or the particular examples disclosed as the best mode for carrying out the present application, but the present application will include any and all embodiments and equivalents falling within the scope of the appended claims. Thus, the scope of the present application will only be determined by the appended claims.

Claims

1. A foldable packaging box, characterized in that, The utility model relates to a kind of paper box, including: First paperboard (100) is enclosed by longitudinal folding into longitudinal frame; Second paperboard (200), the first paperboard (100) is vertically crossed with second paperboard (200), and second paperboard (200) is enclosed by transverse folding into transverse frame, and longitudinal frame and transverse frame are jointly enclosed into six closed cube; Inner box (300) is installed on the first paperboard (100).

2. The collapsible packaging box of claim 1, wherein, A plurality of first crease grooves (101) are provided on the first paperboard (100), and the first paperboard (100) is divided into bottom surface, back surface, top surface and front surface by the plurality of first crease grooves (101), and the inner box (300) is installed on the bottom surface of the first paperboard (100).

3. The collapsible packaging box of claim 2, wherein, A plurality of second crease grooves (201) are provided on the second paperboard (200), and the second paperboard (200) is divided into back surface, left side surface, right side surface and front surface by the plurality of second crease grooves (201), the back surface of the first paperboard (100) is overlapped with the back surface of the second paperboard (200), and the front surface of the first paperboard (100) is overlapped with the front surface of the second paperboard (200).

4. The collapsible packaging box of claim 3, wherein, The back surface of the first paperboard (100) is bonded and connected with the back surface of the second paperboard (200) by glue.

5. The collapsible packaging box of claim 3, wherein, The second paperboard (200) is connected with a first adhesive layer (202), and the second paperboard (200) is connected with the inner box (300) by the first adhesive layer (202).

6. The collapsible packaging of claim 2, wherein, The inner box (300) includes: A bottom plate (301) is installed on the bottom surface of the first paperboard (100); Two side plates (302) are installed on the bottom plate (301) and symmetrically arranged, and the bottom plate (301) and the two side plates (302) form a placing space.

7. The collapsible packaging box of claim 6, wherein, The bottom plate (301) includes: A support plate (305) is installed on one side of the bottom plate (301) An inverted folding plate (306) is installed on the other side of the bottom plate (301).

8. The collapsible packaging box of claim 7, wherein, The side plate (302) includes: A first connecting plate (303) is installed on one side of the side plate (302) close to the support plate (305), one side of the first connecting plate (303) is connected with the second paperboard (200) by a second adhesive layer (307), and the support plate (305) is connected with the other side of the first connecting plate (303) by a third adhesive layer (308); A second connecting plate (304) is installed on one side of the side plate (302) close to the inverted folding plate (306), the inverted folding plate (306) is folded along the second connecting plate (304), and the second connecting plate (304) is arranged in the folded position.