Rotary folding carton

Abstract

The utility model discloses a kind of rotary folding packaging boxes, including cover and bottom plate, cover and bottom plate are provided with folding body between, multiple positive creases and reverse creases are provided on the side wall of folding body, each positive crease and reverse crease are staggered, the both ends of each positive crease extend to the top end and bottom end of folding body, the both ends of each reverse crease extend to the top end and bottom end of folding body;Cover and bottom plate are regular polygon;The number of edges of folding body top end, the number of edges of folding body bottom end, the number of edges of cover and the number of edges of bottom plate are equal.The rotary folding packaging box provided by the utility model realizes the rotary folding and opening of folding body by positive and reverse creases, storage space is reduced by more than 60%, and structure is stable, assembly is convenient, production process is simple.

Description

Technical Field

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

[0002] Currently, most packaging boxes adopt a fixed structure, occupying a significant amount of space even when not in use. This low space utilization leads to a substantial increase in logistics and warehousing costs, especially during bulk transportation and warehousing. While some foldable packaging boxes can reduce space usage to some extent, their folding methods often rely on complex interlocking or adhesive structures. This not only makes assembly cumbersome and time-consuming but also leads to structural loosening and instability after repeated folding, failing to meet the demands of efficient packaging and long-term reusability. Furthermore, existing foldable packaging structures often employ multi-component splicing, resulting in complex manufacturing processes and preventing integrated molding. This increases material costs and hinders the adaptation to automated production requirements. In view of these technical problems, this application proposes a compact, easy-to-fold, highly stable, and integrated packaging structure to address the issues of low space utilization, complex assembly, and poor structural stability in existing technologies. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a rotating folding packaging box, which aims to solve the technical problems of large space occupation, complex assembly and poor structural stability of the packaging box in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A rotating folding packaging box includes a cover plate and a bottom plate. A folding body is disposed between the cover plate and the bottom plate. Multiple positive creases and negative creases are provided on the side wall of the folding body. The positive creases and negative creases are staggered. The two ends of each positive crease extend to the top and bottom of the folding body, and the two ends of each negative crease extend to the top and bottom of the folding body. Both the cover plate and the bottom plate are regular polygons. The number of sides at the top of the folding body, the number of sides at the bottom of the folding body, the number of sides of the cover plate, and the number of sides of the bottom plate are equal.

[0005] Furthermore, in the aforementioned rotating folding packaging box, the cover, bottom plate, and folding body are integrally formed from a single piece of cardboard.

[0006] Furthermore, in the aforementioned rotary folding packaging box, one side of the cover plate is connected to one side of the folding body, and one side of the bottom plate is connected to one side of the folding body.

[0007] Furthermore, in the aforementioned rotary folding packaging box, the cover plate and the bottom plate are symmetrically arranged when the cardboard is unfolded.

[0008] Furthermore, in the aforementioned rotary folding packaging box, the two ends of the folded body are glued together.

[0009] Furthermore, in the aforementioned rotating folding packaging box, the top of the folding body is provided with several upper positioning plates facing inward, and at least one upper positioning plate is provided with a first insertion hole; the cover plate is provided with a number of first insert pieces that are equal to and correspond one-to-one with the number of first insertion holes.

[0010] Furthermore, in the aforementioned rotating folding packaging box, the bottom of the folding body is provided with several lower positioning plates facing inward, and at least one of the lower positioning plates is provided with a second insertion hole; the bottom plate is provided with a second insert piece that is equal in number to and corresponds one-to-one with the second insertion hole.

[0011] Beneficial effects: This utility model provides a rotating folding packaging box, which has at least the following advantages compared with the prior art: (1) Significantly improved space utilization: The folding body is designed with alternating positive and negative creases that run through the top and bottom. It can be easily folded from an unfolded cylindrical shape into a flat shape, reducing the space occupied during storage by more than 60%, effectively reducing the space cost in the process of bulk transportation and warehousing.

[0012] (2) The structural stability is greatly enhanced: the design of positive and negative creases makes the folded body uniformly stressed, avoiding local stress concentration that could lead to cracking; the two ends of the folded body are bonded together to form a rigid connection, preventing axial displacement of the side walls; the "pin-type" limiting structure of the upper positioning plate and the first insert, and the lower positioning plate and the second insert further ensures the stable connection between the cover plate, the bottom plate and the folded body, preventing the structure from becoming loose during use.

[0013] (3) Convenient and efficient assembly operation: The cover plate, bottom plate and folding body are formed by one piece of cardboard and processed by one die-cutting and creasing process, saving the splicing process of multiple parts; the cover plate and bottom plate are connected to the folding body by one side in a "continuous and uncut" manner, which can easily realize rotation and opening and closing, and the assembly process is simple and time-saving. Attached Figure Description

[0014] Figure 1 The three-dimensional rotating folding packaging box provided by this utility model Figure 1 In the picture, the folded body is in the open state, and the cover is in the open state.

[0015] Figure 2 The three-dimensional rotating folding packaging box provided by this utility model Figure 2 In the diagram, the folded body is in the open state, and the cover plate is in the closed state.

[0016] Figure 3 This is a front view of the rotating folding packaging box provided by this utility model, with the folding body in the open state.

[0017] Figure 4This is a schematic diagram showing the unfolded rotating folding packaging box provided by this utility model.

[0018] Explanation of icon numbers: 1. Cover plate; 2. Base plate; 3. Folded shape; 31. Positive crease; 32. Negative crease; 41. Upper positioning plate; 410. First insertion hole; 42. Lower positioning plate; 420. Second insertion hole; 51. First insert; 52. Second insert. Detailed Implementation

[0019] To make the objectives, technical solutions, and effects of this utility model clearer and more explicit, the present utility model is further described in detail below. It should be understood that the specific embodiments described herein are merely for explaining this utility model and are not intended to limit this utility model.

[0020] Please see Figures 1 to 4 This utility model provides a rotating folding packaging box. The accompanying drawings are for illustrative purposes only and are not proportional to actual products. The drawings only depict structures relevant to the innovative points of this utility model; some conventional structures are not specifically shown. The term "several" in this document refers to a quantity of one or more, and "multiple" refers to a quantity of two or more. Since the quantity of structures referred to is not a specific inventive point, it is not specifically limited.

[0021] For ease of understanding, solid lines represent positive creases and dashed lines represent negative creases in the attached diagram. Positive creases bulge outwards from the folded surface, while negative creases are concave inwards from the folded surface.

[0022] The rotating folding packaging box includes a cover plate 1 and a bottom plate 2. A folding body 3 is provided between the cover plate and the bottom plate. Multiple positive folds 31 and negative folds 32 are provided on the side wall of the folding body. The positive folds 31 and negative folds 32 are staggered. The two ends of each positive fold extend to the top and bottom of the folding body, and the two ends of each negative fold extend to the top and bottom of the folding body. The cover plate and the bottom plate are both regular polygons. The top and bottom of the folding body are both regular polygons. The number of sides of the top of the folding body, the number of sides of the bottom of the folding body, the number of sides of the cover plate, and the number of sides of the bottom plate are equal.

[0023] In this design, the forward and reverse creases intersect, with both ends extending to the top and bottom of the fold. This allows the fold to be rotated (i.e., contracted) and rotated open (i.e., stretched). Folding and opening are convenient and require no additional tools. When the packaging box is compressed from both ends, it can contract from an unfolded (cylindrical) state to a flat shape, reducing storage space by over 60% and significantly lowering warehousing and transportation costs. When needed, the fold can be stretched by pulling in the opposite direction from both ends. The forward and reverse creases run through the top and bottom of the fold, ensuring even stress distribution during folding, preventing localized stress concentration that could lead to cracking, and improving structural durability.

[0024] Furthermore, the cover plate 1, the bottom plate 2, and the folded body 3 are integrally formed from a single piece of cardboard. This one-piece molding design eliminates the need to cut and assemble the cover plate, bottom plate, and folded body separately. The cardboard processing can be completed in one die-cutting and creasing process, which not only improves production efficiency but also avoids assembly deviations caused by dimensional errors when assembling multiple parts.

[0025] Furthermore, one side of the cover plate 1 is connected to one side of the folding body 3 (e.g., Figure 1 As shown), one side of the base plate 2 is connected to one side of the folded body 3. Figure 1 Only the connection between the cover and the folding body is shown. Since the base plate is also connected to the folding body in the same way, the attached diagram does not specifically show the open state of the base plate. The cover and the folding body, as well as the base plate and the folding body, are connected by a continuous, uninterrupted connection along one edge, allowing the cover and base plate to rotate relative to the folding body, facilitating packaging and assembly. During use, the cover can also be easily opened and closed.

[0026] Furthermore, such as Figure 4 As shown, in the unfolded state of the cardboard, the cover plate 1 and the base plate 2 are symmetrically arranged. This symmetrical arrangement of the cover and base plates facilitates tight layout on the rectangular cardboard, reducing waste of scrap material. Furthermore, after assembly into a packaging box, the base plate and cover plate are also symmetrically arranged overall. Simply stand the packaging box upright on a table; the plate at the bottom is the base plate, and the plate at the top is the cover plate, making it convenient to use.

[0027] Furthermore, the two ends of the folded body are glued together. Figure 4 The left and right ends of the folding body 3 are the beginning and end ends of the folding body. After the beginning and end ends of the folding body are glued together, its sidewalls change from a "strip" shape to a "cylindrical" shape, so that the packaging box has complete containment space when unfolded. The glued joint forms a rigid connection, preventing the sidewalls of the folding body from axially displacing when subjected to force.

[0028] Furthermore, the top of the folding body has several upper positioning plates 41 facing inward, at least one of which has a first insertion hole 410; the cover plate has a number of first insert pieces 51 that correspond one-to-one with the first insertion holes. After the upper positioning plates are folded inward, the first insert pieces are inserted into the corresponding first insertion holes, forming a "pin-type" limiting structure. When the first insert piece is inserted into the first insertion hole, the cover plate closes on the folding body. When the user applies upward force to open the cover plate, the first insert piece exits from the first insertion hole, thereby opening the cover plate.

[0029] Furthermore, the bottom of the folding body has several lower positioning plates 42 facing inward, and at least one of the lower positioning plates has a second insertion hole 420; the bottom plate has a number of second inserts 52 that are equal to and correspond one-to-one with the second insertion holes. This arrangement is similar to the arrangement of the first insertion holes and the first inserts, which facilitates the closing and opening of the bottom plate and the folding body.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. It is understood that those skilled in the art can make equivalent substitutions or modifications based on the technical solution and inventive concept of the present utility model, and all such modifications or substitutions should fall within the protection scope of the present utility model.

Claims

1. A rotary folding packaging box, comprising a lid and a bottom plate, characterized in that: A folding body is provided between the cover plate and the base plate. The side wall of the folding body has multiple positive and negative folds, which are staggered. The two ends of each positive fold extend to the top and bottom of the folding body, and the two ends of each negative fold extend to the top and bottom of the folding body. Both the cover plate and the base plate are regular polygons. The number of sides at the top of the folding body, the number of sides at the bottom of the folding body, the number of sides of the cover plate, and the number of sides of the base plate are equal.

2. The rotary folding packaging box according to claim 1, characterized in that: The cover, bottom plate, and folding body are formed from a single piece of cardboard.

3. The rotary folding packaging box according to claim 1, characterized in that: One edge of the cover plate is connected to one edge of the folded body, and one edge of the base plate is connected to one edge of the folded body.

4. The rotary folding packaging box according to claim 3, characterized in that: When the cardboard is unfolded, the cover plate and the bottom plate are symmetrically arranged.

5. The rotary folding packaging box according to claim 3, characterized in that: The two ends of the folded body are glued together.

6. The rotary folding packaging box according to claim 1, characterized in that: The top of the folding body has several upper positioning plates facing inward, and at least one upper positioning plate has a first insertion hole; the cover plate has a number of first inserts that are equal to and correspond one-to-one with the number of first insertion holes.

7. The rotary folding packaging box according to claim 1, characterized in that: The bottom of the folding body has several lower positioning plates facing inward, and at least one of the lower positioning plates has a second insertion hole; the bottom plate has a number of second inserts that are equal to and correspond one-to-one with the number of the second insertion holes.

Images