Packaging box convenient to flatten

By designing a deformable packaging box structure, efficient use of space is achieved during transportation and storage, solving the problems of space waste and cumbersome assembly of traditional cardboard boxes, and reducing logistics and warehousing costs.

CN223605979UActive Publication Date: 2025-11-28SHANTOU YUFENG PAPER IND CO LTD
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Patent Information

Application Number
CN202522222881.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-21
Publication Date
2025-11-28
Estimated Expiration
2035-10-21

AI Technical Summary

Technical Problem

Traditional cardboard boxes suffer from space waste and high costs during transportation and storage. They are also cumbersome to assemble and cannot be fully flattened, resulting in low space utilization and increased logistics costs.

Method used

A packaging box designed for easy flattening includes a box body and a storage cavity. It can switch between flattened and stored states through an integrated structure, and uses deformable padding and fixing connectors to ensure stability and easy operation.

Benefits of technology

When flattened, they can be stacked tightly, reducing transportation and storage space, improving space utilization, reducing logistics and warehousing costs, and simplifying operating procedures.

✦ Generated by Eureka AI based on patent content.

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Abstract

A packaging box convenient to flatten comprises a box body and a containing cavity connected with one side of the box body, and the containing cavity comprises a surrounding edge and a first liner part connected with the bottom of the surrounding edge; the box body comprises a main plate, a side plate, a cover plate and a second liner part; in the flattened state, the surrounding edge is pressed along the diagonal line, the first gasket part is in the folded state, the main plate, the side plate and the cover plate are flattened in sequence, the second gasket part is in the flattened state, and the surrounding edge and the first gasket part are located above the main plate; in the storage state, the surrounding edge is unfolded to be in a rectangular state, the first liner part is in a flattened state, the main plate, the side plates and the cover plate are vertically arranged, the second liner part is in an unfolded state, and the storage cavity is covered with the cover plate. In the flattened state, the packaging box can be folded into a compact flat plate, the space utilization rate of transportation and storage is greatly improved, in the storage state, tedious assembling steps are omitted due to the integrated design, and the operation efficiency and the user experience are remarkably improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of packing box, especially to a packing box convenient to flatten. BACKGROUND

[0002] The current traditional paper box has a significant space waste problem in the transportation and storage link, which directly pushes up the cost. The traditional paper box adopts pre-folding or semi-finished structure, and the design focuses on the stability after assembly, ignoring the flattening demand. Even in the empty box state, due to the influence of fold rigidity and fold structure, it cannot be completely flattened and still occupies a large volume. For example, when the empty boxes are stacked, the convex structure will form a large number of gaps and cannot be closely fitted, the storage capacity per unit space is reduced compared to the completely flattened state, and the space utilization rate is greatly reduced. In addition, some paper boxes on the market are designed with "box body + lining + cover plate" separate packaging to adapt to the shape of the goods. When assembling, the staff needs to match the accessories one by one, fix the lining first, then splice the box body, and finally buckle the cover plate. The steps are complicated, and the daily use of the operator is very inconvenient.

[0003] When transporting, the number of empty boxes that can be loaded by a unit truck, express bag and other tools is greatly reduced, and the transportation frequency has to be increased, resulting in the rise of logistics cost. In the storage link, the unflattened empty boxes occupy too much storage space, reducing the space utilization rate and indirectly increasing the storage cost. Especially in the background of rapid development of e-commerce and increasing demand for space utilization in offline retail, this problem of space waste and high cost is becoming more and more prominent, which has become an important obstacle to cost reduction and efficiency improvement in the industry. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a packing box convenient to flatten, and aims at solving the problems of paper box transportation and storage space waste, high cost, complicated assembly and inconvenient operation in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides a packing box convenient to flatten, which comprises a box body and a storage cavity connected with one side of the box body, the storage cavity comprises a surrounding edge and a first gasket part connected with the bottom of the surrounding edge,

[0006] The box body comprises a main plate, a side plate, a cover plate and a second gasket part, the side plate is connected with the main plate and the cover plate on both sides respectively, and the second gasket part is connected with the side plate and the cover plate respectively;

[0007] When in the flattened state, the surrounding edge is pressed along the diagonal line, the first gasket part is in the folded state, the main plate, the side plate and the cover plate are flattened in turn, the second gasket part is in the flattened state, and the surrounding edge and the first gasket part are above the main plate;

[0008] When in the storage state, the surrounding edge is unfolded to be rectangular, the first cushion part is in the unfolded state, the main plate, the side plate and the cover plate are vertically arranged respectively, and the second cushion part is in the unfolded state, and the cover plate covers above the storage cavity.

[0009] Preferably, when in the storage state, the connecting plates are vertically arranged to be rectangular, and when in the unfolded state, the connecting plates are arranged along the diagonal lines to be flat.

[0010] Preferably, the first cushion part is provided with two and is symmetrically arranged along the diagonal lines of the surrounding edge, the first cushion part is connected with the bottom side of the two connecting plates respectively, and the first cushion part can be folded.

[0011] Preferably, the first cushion part is triangular,

[0012] The first cushion part can be folded along the middle line, and the two side edges corresponding to the non-folded middle line are connected with the connecting plates respectively.

[0013] Preferably, the main plate, the side plate and the cover plate are rectangular respectively, and when in the storage state, the three are vertically arranged to form a "Fang" type.

[0014] Preferably, the second cushion part is provided with two, one side of the second cushion part is connected with the edge of the side plate, and the other side is connected with the middle part of the cover plate, and when in the storage state, the second cushion part is unfolded and bent to be 90 degrees.

[0015] Preferably, the second cushion part is triangular or parallelogram,

[0016] When the second cushion part is triangular, the second cushion part can be folded along the middle line, and the side edge corresponding to the middle line is connected with the edge of the side plate on one side and connected with the middle part of the cover plate on the other side,

[0017] When the second cushion part is parallelogram, the second cushion part can be folded along the diagonal line, and the two side edges which are not parallel are connected with the edge of the side plate on one side and connected with the middle part of the cover plate on the other side.

[0018] Preferably, the main plate is provided with a first fixing part, the first cushion part is provided with a first connecting part matched with the first fixing part, and the first fixing part and the first connecting part are separably connected.

[0019] Preferably, the cover plate is provided with a second fixing part respectively, the second cushion part is provided with a second connecting part matched with the second fixing part, and the second fixing part and the second connecting part are separably connected.

[0020] The utility model discloses the beneficial effect:

[0021] 1. In the flat state, all components are folded into a compact flat plate, so that the empty box can be tightly stacked during transportation and storage, and the number of packaging boxes that can be accommodated in a unit volume is greatly increased. Therefore, the frequency of transport vehicles and the area required for storage can be directly reduced, thereby significantly reducing the logistics and storage costs.

[0022] 2. The utility model discloses an integrated box body, storage cavity and lining structure, and simplifies the operation process, which greatly improves the use efficiency. From the flat state to the storage state, the user only needs to operate one step, unfolds the surrounding edge, and bends the box body into shape. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced as follows.

[0024] Figure 1 is a flat state schematic diagram of the utility model.

[0025] Figure 2 is a storage state schematic diagram of the utility model.

[0026] Figure 3 is a schematic diagram of the utility model switching different states.

[0027] Figure 4 is a structure schematic diagram of the utility model fixed connection mechanism.

[0028] In the drawing: 100-box body; 110-main plate; 111-first fixing part; 120-side plate; 130-cover plate; 131-second fixing part; 140-second gasket part; 141-second connecting piece; 200-storage cavity; 210-surrounding edge; 211-connecting plate; 220-first gasket part; 221-first connecting piece. DETAILED DESCRIPTION

[0029] The embodiments of the utility model will be described in detail below; the examples of the embodiments are shown in the drawings; the embodiments described below by referring to the drawings are exemplary; and are intended to explain the utility model; and cannot be understood as limiting the utility model.

[0030] The utility model aims at providing a packaging box convenient to flatten; to solve the space waste and complicated assembly of conventional paper boxes in the background art. The packaging box of the utility model has an integrated deformable structure; and can be switched between the "storage state" and the "flat state".

[0031] As Figure 1 , Figure 2As shown, the packaging box comprises a box body 100 and a receiving cavity 200 connected integrally, the box body 100 is composed of a main plate 110, a side plate 120, a cover plate 130 and a second gasket part 140. Among them, the main plate 110, the side plate 120 and the cover plate 130 are connected in sequence, and are all rectangular structures. In the receiving state, the three are perpendicular to each other, forming an open "F" type structure. The second gasket part 140 is connected between the side plate 120 and the cover plate 130, and is used for reinforcing the "F" type structure. And the receiving cavity 200 is connected with one side of the box body 100, which is composed of a surrounding edge 210 and a first gasket part 220. The surrounding edge 210 is surrounded by four connecting plates 211, which is unfolded to form a rectangular shape in the receiving state, forming a receiving space. The first gasket part 220 is connected to the bottom of the surrounding edge 210, and is used for supporting the internal articles.

[0032] Specifically, the two core states of the packaging box of the utility model include the following,

[0033] Flat state: used for transportation and storage, at this time, the main plate 110, the side plate 120 and the cover plate 130 of the box body 100 are completely unfolded to form a plane, the surrounding edge 210 of the receiving cavity 200 is pressed along the diagonal line, and the first gasket part 220 after folding is flatly stacked above the main plate 110, and the whole forms a flat plate structure, which is convenient for close stacking.

[0034] Receiving state: used for packaging articles. At this time, the surrounding edge 210 is unfolded to form a rectangular receiving space, and the first gasket part 220 is unfolded to provide bottom support, and the main plate 110, the side plate 120 and the cover plate 130 are bent into an "F" type, and the cover plate 130 is just covered above the unfolded receiving cavity 200, and the second gasket part 140 is bent to 90 degrees and covered at the four corners of the rectangular receiving space, forming a complete packaging box.

[0035] As shown, Figure 3 The surrounding edge 210 is connected by four connecting plates 211 through creases. In the receiving state, the four connecting plates 211 are perpendicular to each other, forming a stable rectangular frame for containing articles. In the flat state, by applying force along the diagonal line, the connecting plates 211 will be attached inward (from a rectangle to a parallelogram, and then from a parallelogram to a pressed flat plate), and finally form a flat shape.

[0036] The first padding part 220 of this application is integrally connected to the bottom of the edge 210, eliminating the need for separate configuration and placement of the inner liner as in traditional packaging. This fundamentally solves the pain points of the inner liner being easily lost and requiring additional management. Furthermore, two first padding parts 220 are provided, symmetrically distributed along the diagonal of the edge 210, and connected to the bottom of two opposing connecting plates 211 respectively. The two padding parts have a symmetrical structure, which can both support the internal items from both diagonal sides during storage, resulting in more even force distribution. They can also fold outwards (or inwards) simultaneously with the pressing of the edge 210 when flattened, resulting in a small folded volume that can fit tightly under (or inside) the flattened edge 210.

[0037] Furthermore, the first padding portion 220 is triangular. Specifically, the first padding portion can be a combination of two triangles, with the center line as the splicing line. Similarly, the first padding portion can also be a one-piece structure (e.g., Figure 3 As shown in the diagram, the center line is the pre-compression crease line. When it is a triangle, a pre-compression crease is set along the center line, and the two sides corresponding to the non-center line are connected to the connecting plate 211 respectively. When flattened, it can be completely fitted by folding along the center line. When stored, the unfolded triangle can form a right-angle support.

[0038] Furthermore, in the flattened state, the two first padding portions 220 of this invention fold in opposite directions; that is, when one first padding portion 220 is folded outward, the other first padding portion 220 should be folded inward. When the folding directions of the two first padding portions 220 are opposite, relative supporting forces are generated, resulting in better load-bearing capacity and thus giving the storage cavity 200 a better storage and support effect.

[0039] See Figure 3 The main board 110, side panel 120, and cover plate 130 are all rectangular and connected sequentially. In the folded state, by bending along the creases, the three can quickly form a mutually perpendicular "U"-shaped frame. Compared to the complex process of assembling multiple side walls and bottoms in traditional cardboard boxes, the "one-fold forming" structure of this application greatly simplifies the assembly steps. The operator only needs one bending action to complete the construction of the box frame, greatly improving convenience.

[0040] To reinforce the "Fang" type structure and accurately position the cover plate, the utility model also sets up two second gasket parts 140. One side of the second gasket part 140 is connected with the edge of the side plate 120, and the other side is obliquely connected with the middle part of the cover plate 130. When the box body is bent into the "Fang" type, the second gasket part 140 will be unfolded and bent along with the cover plate 130. This connection mode forms a stable triangular support structure between the side plate 120 and the cover plate 130, effectively preventing the "Fang" type frame from collapsing or deforming due to stress, and improving the overall load bearing capacity. At the same time, the support structure also plays a limiting role in the closing position of the cover plate 130, ensuring that it can accurately cover the storage cavity 200.

[0041] Further, the second gasket part 140 can also be designed as a triangle or a parallelogram to adapt to box bodies of different sizes. When it is a triangle, it is bent along the median, and the two sides of the median are connected with the side plate 120 and the cover plate 130 respectively, the structure is compact, and it is suitable for square box bodies. When it is a parallelogram, it is bent along the diagonal, and the two non-parallel sides are connected with the side plate 120 and the cover plate 130 respectively, which can form a wider support span, and it is suitable for rectangular box bodies.

[0042] In order to ensure the structural stability of the packaging box in different states, the application also provides a separable fixing connection mechanism. The first fixing part 111 is arranged on the main plate 110 (specifically, it is arranged on the side away from the connection of the first gasket part 220), and the first connecting part 221 matched with the first fixing part 111 is arranged on the first gasket part 220. When the packaging box is in the storage state, the first gasket part 220 after being folded can be fixed on the connecting plate 211 through the cooperation of the fixing part and the connecting part, which can effectively prevent the gasket part from loosening and shifting during transportation or handling, and ensure the stability and neatness of the flat plate form.

[0043] Referring to Figure 4 , the second fixing part 131 is arranged on the cover plate 130, and the second connecting part 141 matched with the second fixing part 131 is arranged on the second gasket part 140. When the packaging box is in the storage state, the second gasket part 140 after being bent can be firmly connected to the cover plate 130 through the fixing part and the connecting part. This further enhances the support force between the side plate and the cover plate, prevents the cover plate from being accidentally opened or deviated, and ensures the stability of the box body structure.

[0044] The fixing part and the connecting part can adopt various separable connection modes, such as magic tape, snap fastener, magnetic part or button and button hole, etc. The specific connection mode is prior art, and the application is not limited.

[0045] The above only discloses one or more preferred embodiments of the application; it cannot limit the scope of the application; those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented; and equivalent changes made according to the claims of the application still belong to the scope covered by the application.

Claims

1. A packing box convenient to flatten, comprising a box body and a receiving cavity connected with one side of the box body, characterized in that, The accommodating cavity comprises a surrounding edge and a first cushion part connected to the bottom of the surrounding edge, The box body comprises a main plate, a side plate, a cover plate and a second cushion part, the side plate is connected to the main plate and the cover plate on both sides respectively, and the second cushion part is connected to the side plate and the cover plate respectively; When in the flat state, the surrounding edge is pressed along the diagonal line, the first cushion part is in the folded state, the main plate, the side plate and the cover plate are flattened in turn, and the second cushion part is in the flat state, the surrounding edge and the first cushion part are above the main plate; When in the storage state, the surrounding edge is unfolded to be rectangular, the first cushion part is in the flat state, the main plate, the side plate and the cover plate are arranged vertically respectively, and the second cushion part is in the unfolded state, the cover plate is above the accommodating cavity.

2. A conveniently flat pack as claimed in claim 1, wherein, The surrounding edge is connected by four connecting plates, When in the storage state, the connecting plates are perpendicular to each other to form a rectangular shape, and when in the flat state, the connecting plates are attached along the diagonal line to form a flat plate shape.

3. A conveniently flat pack as claimed in claim 2, wherein, The first cushion part is provided with two and is symmetrically arranged along the diagonal line of the surrounding edge, the first cushion part is connected to one side of the bottom of the two connecting plates respectively, and the first cushion part can be folded.

4. A conveniently flat pack as claimed in claim 3, wherein, The first cushion part is triangular, The first cushion part can be folded along the center line, and the two side edges corresponding to the non-folding center line are connected to the connecting plates respectively.

5. A conveniently flat pack as defined in claim 1, wherein, The main plate, the side plate and the cover plate are rectangular respectively, and when in the storage state, they are perpendicular to each other to form a "Fang" type.

6. A conveniently flat pack as claimed in claim 5, wherein, The second cushion part is provided with two, and one side of the second cushion part is connected to the edge of the side plate, and the other side is connected to the middle part of the cover plate, when in the storage state, the second cushion part is unfolded and bent to 90 degrees.

7. A conveniently flat pack as claimed in claim 5, wherein, The second cushion part is triangular or parallelogram, When the second cushion part is triangular, it can be bent along the center line, and the side edge corresponding to the center line is connected to the edge of the side plate on one side and to the middle part of the cover plate on the other side, When the second cushion part is parallelogram, it can be folded along the diagonal line, and the two sides which are not parallel are connected to the edge of the side plate on one side and to the middle part of the cover plate on the other side.

8. A conveniently flat pack as defined in claim 4, wherein, The first fixing part is arranged on the main plate, the first connecting part matched with the first fixing part is arranged on the first cushion part, and the first fixing part and the first connecting part can be connected separately.

9. A conveniently flat pack as claimed in claim 7, wherein, The second fixing part is arranged on the cover plate respectively, the second connecting part matched with the second fixing part is arranged on the second cushion part, and the second fixing part and the second connecting part can be connected separately.