Folding packaging box

Abstract

The utility model discloses a folding packing box, including outer box board, the inside surface of outer box board two sides symmetry is provided with inner box board, is in the unfolded state, two inner box boards are overlapped and are attached to the two sides of the inside surface of outer box board, wherein, outer box board includes bottom plate, and the opposite two sides of bottom plate are respectively with the bottom edge of two inner box boards foldably connected, and the opposite two other sides of bottom plate are respectively foldably connected with first panel, second panel, is in the folding state, and the side of first panel, second panel is away from bottom plate adjacent and is detachably connected through closing piece, the inside surface of the one side of inner box board including end plate, the bottom edge of both end plates is foldably connected with the opposite two sides of bottom plate, and the two side edges of end plate all foldably connected with the traction plate, and the inside surface of the one side of traction plate is away from end plate foldably connected with first panel or second panel. The utility model discloses simple convenient to use, and the possibility of hooking is low when unfolding, and the stability after folding into the shape is high.

Description

Technical Field

[0001] This utility model relates to the field of packaging box technology, specifically to a folding packaging box. Background Technology

[0002] Packaging boxes, as the outer packaging of goods, serve functions such as preservation, protection, and aesthetics, and are widely used in daily production and life. However, in order to reserve a certain amount of space inside to accommodate objects, current box-type packaging boxes are mostly three-dimensional rectangular structures after leaving the factory. They occupy a lot of space during transportation and storage, which is not conducive to resource conservation.

[0003] To address the aforementioned problems, foldable packaging boxes have been designed. These boxes can be folded up when not in use, significantly saving space. When in use, outward-extending panels connect adjacent sides to form a hollow, three-dimensional box. Examples include a foldable packaging box and folding sheet material (application number CN202121002249.8) and a foldable packaging box (application number CN201620616142.5). However, these boxes have complex folding designs, resulting in numerous steps during folding and inconvenience. Furthermore, when unfolded, the connecting panels protrude outwards, causing irregular edges that are prone to snagging on objects, leading to tearing and damage. Additionally, the folded boxes are all rectangular structures with a constant cross-sectional area along the height, resulting in poor stability and a tendency to tip over. Therefore, it is necessary to develop a folding packaging box to overcome the shortcomings in current practical applications. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model proposes a folding packaging box that is simple and convenient to use, has a low possibility of snagging when unfolded, and has high stability after being folded.

[0005] The technical solution of this utility model is implemented as follows: A folding packaging box includes an outer box panel, with inner box panels symmetrically arranged on both sides of the inner surface of the outer box panel. When in the unfolded state, the two inner box panels overlap and adhere to both sides of the inner surface of the outer box panel; wherein... The outer box panel includes a bottom plate, and the two opposite sides of the bottom plate are foldably connected to the bottom edges of the two inner box panels respectively. The other two opposite sides of the bottom plate are foldably connected to a first panel and a second panel respectively. When in the folded state, the sides of the first panel and the second panel away from the bottom plate are adjacent and detachably connected by a closure. The inner box panel includes end plates, the bottom edges of the two end plates are foldably connected to the two opposite sides of the bottom plate, and each side of the end plate is foldably connected to a traction plate. The side of the traction plate away from the end plate is foldably connected to the inner surface of the first panel or the second panel.

[0006] In a preferred embodiment, the end plate is triangular, and the lengths of the two sides of the end plate are equal to the widths of the first panel and the second panel, respectively.

[0007] In a preferred embodiment, the end plate is an isosceles triangle.

[0008] In a preferred embodiment, the traction plate includes a folding portion and a fixing portion, wherein the two sides of the folding portion are foldably connected to the side of the end plate and the fixing portion, respectively, and the fixing portion is fitted and fixed to the inner surface of the first panel or the second panel.

[0009] In a preferred embodiment, the end plate, the two folding parts, and the two fixing parts located on the same side of the outer box panel are integrally formed to form the inner box panel.

[0010] In a preferred embodiment, the closure includes a tongue plate that is foldably connected to the side of the second panel away from the bottom plate, and the first panel is provided with a socket for the tongue plate to be inserted into.

[0011] In a preferred embodiment, the closure includes a cover plate and a tongue plate. The two opposite sides of the cover plate are foldably connected to the second panel and the tongue plate, respectively. Furthermore, the first panel is provided with a socket, and the tongue plate is inserted into the socket.

[0012] In a preferred embodiment, the outer box panel and the two inner box panels are integrally formed, and both the outer box panel and the two inner box panels are rectangular.

[0013] In a preferred embodiment, the width of the outer box panel is equal to or less than the sum of the widths of the two inner box panels.

[0014] In a preferred embodiment, the length of the inner box panel is the sum of the lengths of the bottom plate, the first panel, and the second panel.

[0015] Compared with the prior art, the present invention has the following advantages: 1. By setting an outer box panel and two inner box panels, and in the unfolded state, the two inner box panels overlap and adhere to both sides of the inner surface of the outer box panel, which can prevent the inner box panels from protruding beyond the edge of the outer box panel, thereby effectively reducing the possibility of snagging with external objects.

[0016] 2. By folding the first panel and the second panel onto the opposite sides of the base plate, and when in the folded state, the sides of the first panel and the second panel away from the base plate are adjacent, the cross-sectional area of ​​the folded packaging box gradually decreases along the height direction, forming a three-dimensional structure that is smaller at the bottom and larger at the top, making it less prone to tipping over and providing greater stability.

[0017] 3. By setting a traction plate, one side of the traction plate can be foldably connected to the side of the end plate, and the other side of the traction plate can be foldably connected to the inner surface of the first panel or the second panel. Thus, during the unfolding of the packaging box, the first panel and the second panel can respectively pull the end plate towards the direction of adhering to the bottom plate through the corresponding traction plate until the end plate and the traction plate overlap and adhere to the inner surface of the outer box panel. Furthermore, during the folding and forming of the packaging box, the first panel and the second panel can respectively push the end plate outward away from the bottom plate through the corresponding traction plate until the end plate is perpendicular to the bottom plate, making it convenient and quick to use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention in a folded state; Figure 2 This is a front view of the present invention in its unfolded state; Figure 3 This is a rear view of the present invention in its unfolded state; Figure 4 This is a schematic diagram of the present invention in a state between unfolding and folding.

[0020] Figure label: Outer box panel-1, bottom panel-11, first panel-12, second panel-13; Inner box panel-2, end panel-21, traction plate-22, folding part-221, fixing part-222; Closure-3, Tongue-31, Insert-32, Cover-33. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," and "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Reference Figures 1-4 This utility model provides a folding packaging box, including an outer box panel 1. Inner box panels 2 are symmetrically arranged on both sides of the inner surface of the outer box panel 1. When in the unfolded state, the two inner box panels 2 overlap and adhere to both sides of the inner surface of the outer box panel 1. This design can prevent the inner box panels 2 from protruding beyond the edge of the outer box panel 1, thereby effectively reducing the possibility of snagging with external objects and reducing tearing and damage.

[0025] Furthermore, the outer box panel 1 includes a bottom plate 11, the two opposite sides of the bottom plate 11 are foldably connected to the bottom edges of the two inner box panels 2, and the other two opposite sides of the bottom plate 11 are foldably connected to a first panel 12 and a second panel 13. When in the folded state, the sides of the first panel 12 and the second panel 13 away from the bottom plate 11 are adjacent and detachably connected by a closure 3. The inner box panel 2 includes an end plate 21. The bottom edges of the two end plates 21 are foldably connected to the two opposite sides of the bottom plate 11. Both sides of the end plates 21 are foldably connected to a traction plate 22. The side of the traction plate 22 away from the end plate 21 is foldably connected to the inner surface of the first panel 12 or the second panel 13.

[0026] When folded, the first panel 12 and the second panel 13 are adjacent on the side away from the bottom plate 11, meaning the distance between the first panel 12 and the second panel 13 is small or even in contact with each other. On the other hand, the side of the first panel 12 and the second panel 13 connected to the bottom plate 11 is separated by the bottom plate 11, meaning the distance between the first panel 12 and the second panel 13 is large. As a result, the distance between the first panel 12 and the second panel 13 gradually increases from top to bottom. That is, the cross-sectional area of ​​the folded packaging box gradually decreases along the height direction. The packaging box as a whole has a three-dimensional structure that is smaller at the bottom and larger at the top, making it less likely to tip over and giving it higher stability.

[0027] When it needs to be unfolded, the first panel 12 and the second panel 13 are separated by the closure 3, and the first panel 12 and the second panel 13 are folded outward in the direction away from the bottom plate 11. Since the two sides of the traction plate 22 are respectively connected to the side of the end plate 21 and the first panel 12 / second panel 13 in a foldable manner, when the first panel 12 and the second panel 13 are folded outward, the traction plate 22 will pull the end plate 21 to fold towards the bottom plate 11 until the traction plate 22 and the end plate 21 are both attached to the inner surface of the outer box plate 1, so that the packaging box can be unfolded easily and quickly. When folding is required, since the side of the traction plate 22 away from the end plate 21 is foldably connected to the inner surface of the first panel 12 or the second panel 13, during the folding process of the first panel 12 and the second panel 13 toward the bottom plate 11, the traction plate 22 will push the end plate 21 to fold outward away from the bottom plate 11, so that the end plate 21 is no longer in contact with the inner surface of the outer box panel 1, until the side of the first panel 12 and the second panel 13 away from the bottom plate 11 touches each other. At this time, the end plate 21 is perpendicular to the bottom plate 11, so that the packaging box can be folded into shape simply and quickly.

[0028] It should be noted that in this embodiment of the utility model, the inner surface refers to the side where the outer box panel 1 and the inner box panel 2 are in contact when unfolded, and the outer surface refers to the side where the outer box panel 1 and the inner box panel 2 are opposite to each other when unfolded. The inner / outer surface of the packaging box in both the folded and unfolded states refers to the same surface.

[0029] In a preferred embodiment, the end plate 21 is triangular, and the lengths of the two sides of the end plate 21 are equal to the widths of the first panel 12 and the second panel 13, respectively, so that the first panel 12 and the second panel 13 cover the two sides of the end plate 21.

[0030] Furthermore, the end plate 21 is in the shape of an isosceles triangle.

[0031] In a preferred embodiment, the traction plate 22 includes a folding portion 221 and a fixing portion 222. The two sides of the folding portion 221 are foldably connected to the side of the end plate 21 and the fixing portion 222, respectively. The fixing portion 222 is attached and fixed to the inner surface of the first panel 12 or the second panel 13. During the folding / unfolding process of the first panel 12 or the second panel 13 with the edge of the base plate 11 as the pivot, it can drive the corresponding traction plate 22 to fold / unfold, thereby pulling the end plate 21 to fold towards / away from the base plate 11.

[0032] Furthermore, the folding part 221 is triangular, and the fixing part 222 is a right trapezoid.

[0033] In a preferred embodiment, the end plate 21, the two folding parts 221, and the two fixing parts 222 located on the same side of the outer box plate 1 are integrally formed to form the inner box plate 2.

[0034] In one embodiment, the closure 3 includes a tongue plate 31, which is foldably connected to the side of the second panel 13 away from the bottom plate 11. The first panel 12 is provided with an insertion slot 32, and the tongue plate 31 is inserted into the insertion slot 32, thereby enabling the opening of the folded packaging box to remain closed, even if the sides of the first panel 12 and the second panel 13 away from the bottom plate 11 remain adjacent.

[0035] In another embodiment, the closure 3 includes a cover plate 33 and a tongue plate 31. The two opposite sides of the cover plate 33 are foldably connected to the second panel 13 and the tongue plate 31, respectively. The first panel 12 is provided with an insertion slot 32, and the tongue plate 31 is inserted into the insertion slot 32. After the packaging box is folded into shape, the cover plate 33 is folded up until its inner surface is attached to the outer surface of the first panel 12, and is inserted into the insertion slot 32 through the tongue plate 31. This allows the opening of the folded packaging box to remain closed, and because the cover plate 33 covers the opening of the packaging box, the sealing performance of the packaging box opening can be effectively improved.

[0036] It is understood that this embodiment may also employ magnetic attraction or snap-fit ​​methods to keep the opening of the packaging box closed.

[0037] In a preferred embodiment, the outer box panel 1 and the two inner box panels 2 are integrally formed, and both the outer box panel 1 and the two inner box panels 2 are rectangular.

[0038] Furthermore, the width of the outer box panel 1 is equal to or less than the sum of the widths of the two inner box panels 2.

[0039] Furthermore, the length of the inner box panel 2 is the sum of the lengths of the bottom plate 11, the first panel 12, and the second panel 13.

[0040] In other words, during production, the outer box panel 1 and the two inner box panels 2 are a complete rectangular plate. The two sides of the rectangular plate are folded towards its center line to form the lower outer box panel 1 and the upper two inner box panels 2. The production is simple and requires less cutting, which can effectively reduce waste.

[0041] In a preferred embodiment, both the outer box panel 1 and the inner box panel 2 are made of paper.

[0042] Working principle: When unfolded, the tongue plate 31 is pulled out from the insertion port 32, and then the first panel 12 and the second panel 13 are folded outward in a direction away from the inner surface of the bottom plate 11, which drives the traction plate 22 to unfold, so that the folding part 221 is folded towards the bottom plate 11 with the folded edge between it and the fixing part 222 as the axis, and then the end plate 21 is pulled to fold towards the inner surface of the bottom plate 11 until the first panel 12, the second panel 13, and the bottom plate 11 are fully unfolded and on the same plane, and the folding part 221 and the bottom plate 11 are both attached to the inner surface of the outer box plate 1; When folding, the first panel 12 and the second panel 13 are folded towards the inner surface of the base plate 11, which drives the traction plate 22 to fold. The folding part 221 is folded away from the base plate 11 with the folded edge between it and the fixing part 222 as the axis. This pushes the end plate 21 to fold away from the inner surface of the base plate 11 until the side of the first panel 12 and the second panel 13 away from the base plate 11 touches each other. At this time, the end plate 21 is perpendicular to the base plate 11, and the outer surface of the folding part 221 is attached to the outer surface of the fixing part 222. Finally, the cover plate 33 is folded until its inner surface is attached to the outer surface of the first panel 12 and the tongue plate 31 is inserted into the slot 32, thereby forming a five-sided triangular prism-shaped packaging box.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A folding packaging box, characterized in that: The outer box panel (1) includes inner box panels (2) symmetrically arranged on both sides of the inner surface of the outer box panel (1). When in the unfolded state, the two inner box panels (2) overlap and adhere to both sides of the inner surface of the outer box panel (1); wherein, The outer box panel (1) includes a bottom plate (11). The two opposite sides of the bottom plate (11) are foldably connected to the bottom edges of the two inner box panels (2). The other two opposite sides of the bottom plate (11) are foldably connected to a first panel (12) and a second panel (13). When in the folded state, the first panel (12) and the second panel (13) are adjacent on the side away from the bottom plate (11) and are detachably connected by a closure (3). The inner box panel (2) includes an end plate (21). The bottom edges of the two end plates (21) are foldably connected to the two opposite sides of the bottom plate (11). Both sides of the end plates (21) are foldably connected to a traction plate (22). The side of the traction plate (22) away from the end plate (21) is foldably connected to the inner surface of the first panel (12) or the second panel (13).

2. The folding packaging box according to claim 1, characterized in that: The end plate (21) is triangular, and the lengths of the two sides of the end plate (21) are equal to the widths of the first panel (12) and the second panel (13), respectively.

3. The folding packaging box according to claim 2, characterized in that: The end plate (21) is an isosceles triangle.

4. The folding packaging box according to claim 1, characterized in that: The traction plate (22) includes a folding part (221) and a fixing part (222). The two sides of the folding part (221) are foldably connected to the side of the end plate (21) and the fixing part (222), respectively. The fixing part (222) is attached and fixed to the inner surface of the first panel (12) or the second panel (13).

5. The folding packaging box according to claim 4, characterized in that: The end plate (21), the two folding parts (221), and the two fixing parts (222) located on the same side of the outer box plate (1) are integrally formed to form the inner box plate (2).

6. The folding packaging box according to claim 1, characterized in that: The closure (3) includes a tongue plate (31), which is foldably connected to the side of the second panel (13) away from the bottom plate (11), and the first panel (12) is provided with a socket (32), which is inserted into the tongue plate (31).

7. The folding packaging box according to claim 1, characterized in that: The closure (3) includes a cover plate (33) and a tongue plate (31). The two opposite sides of the cover plate (33) are foldably connected to the second panel (13) and the tongue plate (31), respectively. The first panel (12) is provided with a socket (32), and the tongue plate (31) is inserted into the socket (32).

8. The folding packaging box according to any one of claims 1 to 7, characterized in that: The outer box panel (1) and the two inner box panels (2) are integrally formed, and both the outer box panel (1) and the two inner box panels (2) are rectangular.

9. The folding packaging box according to any one of claims 1 to 7, characterized in that: The width of the outer box panel (1) is equal to or less than the sum of the widths of the two inner box panels (2).

10. The folding packaging box according to any one of claims 1 to 7, characterized in that: The length of the inner box panel (2) is the sum of the lengths of the bottom plate (11), the first panel (12), and the second panel (13).

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