Portable folding corner structure of foldable four-corner carton
By designing a foldable four-corner cardboard box with a portable folding corner structure, the structural strength of the bending area is enhanced, avoiding the defects of poor strength and insufficient support in traditional designs, thus realizing the folding of heavy-duty cardboard boxes and meeting loading requirements.
Patent Information
- Application Number
- CN202520458766.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-17
AI Technical Summary
In existing technologies, heavy-duty thickened cardboard boxes cannot be folded using simple creases, resulting in large space occupation and inconvenience for transfer.
Design a foldable four-corner cardboard box with a portable folding corner structure. By setting an extensible outer arc surface on the outside of the box body, and setting symmetrical first and second outer creases on it, combined with the inner arc surface to form an irregular groove and arc surface structure, the structural strength of the bending area is enhanced, avoiding the defects of poor strength and insufficient support in the bending structure of traditional designs.
It enables heavy-duty cardboard boxes to be folded to meet loading requirements, and utilizes multiple sets of transition curved surface structures superimposed on the outer arc surface to enhance the structural strength of the bending area, avoiding the defects of poor strength and insufficient support in the bending structure of traditional designs.
Smart Images
Figure CN223764942U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cardboard box technology, and in particular relates to a portable folding corner structure for a foldable four-corner cardboard box. Background Technology
[0002] Compared to iron tubes or IBC containers, paper bulk storage boxes or packaging containers are easier to source, lighter in weight, and foldable, giving them a significant advantage in the bulk storage field.
[0003] In the prior art, cardboard boxes are laid out as a flat structure before packaging in order to reduce space occupation and facilitate transfer. They are then folded along the creases pre-set on the cardboard box to form the box structure. However, in some places where heavy-duty thick cardboard boxes are required, the crease method cannot allow the cardboard box to be folded. Utility Model Content
[0004] This utility model provides a portable folding corner structure for foldable four-corner cardboard boxes, aiming to solve the problem that the current simple crease method for heavy cardboard boxes cannot help the boxes fold.
[0005] This utility model is implemented as follows: a foldable four-corner cardboard box portable folding corner structure, comprising:
[0006] A first support surface and a second support surface, wherein a transition surface is provided between the first support surface and the second support surface, and the transition surface includes several sets of outer arc surfaces and inner arc surfaces;
[0007] The outer arc surface includes an outer corner surface, a first outer corner arc surface, a second outer corner arc surface, a first outer corner buffer surface, and a second outer corner buffer surface. The first outer corner buffer surface and the second outer corner buffer surface are respectively disposed on both sides of the outer corner surface. The first outer corner buffer surface and the second outer corner buffer surface are respectively transitionally connected to the first support surface and the second support surface through the first outer corner arc surface and the second outer corner arc surface. When the first support surface and the second support surface are flattened and unfolded to 180°, the transition surface forms an inwardly recessed irregular groove on the outer wall at the connection between the first support surface and the second support surface.
[0008] The inner arc surface includes an inner corner surface. When the first support surface and the second support surface are close to each other and superimposed, the transition surface forms a triangular inner closed space on the inner side of the connection between the first support surface and the second support surface.
[0009] Preferably, the first support surface includes a first inner support surface, several sets of first outer support surfaces and corrugated board surfaces, the number of first outer support surfaces and corrugated board surfaces are the same and are stacked and connected in sequence to form the main body of the first support surface, and the first inner support surface is the inner wall of the first support surface.
[0010] Preferably, the second support surface includes a second inner support surface, several sets of second outer support surfaces and a corrugated plate surface, and the second support surface has the same structure as the first support surface.
[0011] Preferably, the first outer support surface and the second outer support surface are connected to the first outer corner buffer surface and the second outer corner buffer surface respectively through the first outer corner arc surface and the second outer corner arc surface, and the first inner support surface and the second inner support surface are connected through the inner corner surface.
[0012] Preferably, when the first support surface and the second support surface are perpendicular, the included angle between the two planes of the inner corner surface and the second inner support surface is A, and the angle value of A ranges from 30° to 60°.
[0013] Preferably, the outer corner surface is provided with a first outer crease and a second outer crease at the connection between the first outer corner buffer surface and the second outer corner buffer surface;
[0014] Preferably, the inner corner surface is provided with a first inner crease and a second inner crease at the connection between it and the first inner support surface and the second inner support surface;
[0015] Preferably, the outer corner face has a planar structure.
[0016] Preferably, the outer corner surface has an arc surface structure.
[0017] Compared with the prior art, the embodiments of this application have the following main advantages:
[0018] The portable folding corner structure of the foldable four-corner cardboard box provided by this utility model has an extended outer arc surface on the outside of the box structure. The first and second outer folds are integrated into the symmetrical structure of the outer arc surface to reduce the difficulty of the bending process, so that even heavy cardboard boxes can be folded to meet loading requirements. Furthermore, multiple sets of transition curved surface structures are superimposed on the outer arc surface to enhance the structural strength of the bending area, avoiding the defects of poor strength and insufficient support in the bending structure of traditional designs. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of a portable foldable four-corner cardboard box structure provided by this utility model.
[0020] Figure 2 This is a schematic diagram of the angle A structure of a foldable four-corner cardboard box portable folding corner structure provided by this utility model.
[0021] Figure 3 This is a schematic diagram of the structure of a portable foldable four-corner cardboard box provided by this utility model when the first support surface and the second support surface are close to each other and superimposed.
[0022] Figure 4This is a schematic diagram of the structure of a foldable four-corner cardboard box portable folding corner structure provided by this utility model, in which the first support surface and the second support surface are laid flat and unfolded to 180°.
[0023] Figure 5 This utility model provides a schematic diagram of a portable foldable four-corner cardboard box with an arc-shaped outer corner structure.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. First inner support surface; 2. Second inner support surface; 3. First outer support surface; 4. Second outer support surface; 5. Corrugated board surface; 6. First outer corner arc surface; 7. Second outer corner arc surface; 8. First outer corner buffer surface; 9. Second outer corner buffer surface;
[0026] 11. Inner corner face; 12. First inner crease; 13. Second inner crease;
[0027] 21. Outer corner face; 22. First outer crease; 23. Second outer crease;
[0028] 30. Enclosed internal space; 40. Irregularly shaped groove. Detailed Implementation
[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.
[0030] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0031] This utility model embodiment provides a foldable four-corner cardboard box portable folding corner structure, such as... Figures 1-5 As shown, the portable folding corner structure of the foldable four-corner cardboard box includes:
[0032] The first support surface and the second support surface, the first support surface is composed of a first inner support surface 1, a number of first outer support surfaces 3 and corrugated plate surfaces 5, the number of first outer support surfaces 3 and corrugated plate surfaces 5 are equal, the first outer support surfaces 3 and corrugated plate surfaces 5 are stacked in sequence at intervals to form the main body of the first support surface, the first inner support surface 1 is disposed on the inner wall of the first support surface, the second support surface includes a second inner support surface 2, a number of second outer support surfaces 4 and corrugated plate surfaces 5, the structure of the second support surface is the same as the structure of the first support surface;
[0033] A transition surface is also provided between the first support surface and the second support surface. The transition surface includes several sets of outer arc surfaces and inner arc surfaces. The first outer support surface 3 and the second outer support surface 4 are connected by the outer arc surface, and the second inner support surface 2 and the first inner support surface 1 are connected by the inner arc surface.
[0034] The outer arc surface includes an outer corner surface 21, a first outer corner arc surface 6, a second outer corner arc surface 7, a first outer corner buffer surface 8, and a second outer corner buffer surface 9. The first outer corner buffer surface 8 and the second outer corner buffer surface 9 are respectively disposed on both sides of the outer corner surface 21. The first outer corner buffer surface 8 and the second outer corner buffer surface 9 are respectively transitionally connected to the first outer support surface 3 and the second outer support surface 4 through the first outer corner arc surface 6 and the second outer corner arc surface 7. A first outer crease 22 and a second outer crease 23 are provided at the connection between the outer corner surface 21 and the first outer corner buffer surface 8 and the second outer corner buffer surface 9.
[0035] The inner arc surface includes an inner corner surface 11, which is connected to the first inner support surface 1 and the second inner support surface 2 respectively; a first inner crease 12 and a second inner crease 13 are provided at the connection between the inner corner surface 11 and the first inner support surface 1 and the second inner support surface 2.
[0036] When the first and second support surfaces are laid flat and unfolded to 180°, the outer arc surface forms an inwardly recessed irregular groove 40 on the outer wall at the connection between the first and second support surfaces; when the first and second support surfaces are close to each other and superimposed, the inner arc surface forms a triangular inner closed space 30 on the inner side of the connection between the first and second support surfaces; when the first and second support surfaces are set perpendicularly, they constitute the side wall structure of the box. The construction of the inner closed space 30 and the irregular groove 40 mainly helps the box to expand and reduce space occupation.
[0037] In this embodiment, an extensible outer arc surface is provided on the outside of the box structure. The first outer crease 22 and the second outer crease 23 are integrated into the symmetrically arranged structural surface of the outer arc surface, which reduces the difficulty of the bending process. At the same time, multiple sets of transition curved surface structures are superimposed on the outer arc surface to enhance the structural strength of the bending area, avoiding the defects of poor strength and insufficient support in the bending structure in traditional design.
[0038] In a preferred embodiment of this invention, when the first support surface and the second support surface are perpendicular, the angle between the two planes, the inner corner surface 11 and the second inner support surface 2, is A, and the angle value of A ranges from 30° to 60°.
[0039] In this embodiment, the optimal angle value for A can be selected as 45°, which allows the box to be formed into a shape that conforms to the specifications.
[0040] As a preferred embodiment of this embodiment, the outer corner surface 21 can be a planar structure or an arc surface structure. The arc surface structure of the outer corner surface 21 can help the outer arc surface to enhance the structural strength and meet more support needs.
[0041] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.
[0042] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.
Claims
1. A foldable four-corner cardboard box portable folding corner structure, characterized in that, The utility model relates to a kind of foldable support, including: First support surface and second support surface, transition surface is further provided between the first support surface and the second support surface, and the transition surface includes several groups of outer arc surface and inner arc surface; The outer arc surface includes outer corner surface, first outer corner arc surface, second outer corner arc surface, first outer corner buffer surface and second outer corner buffer surface, the first outer corner buffer surface and the second outer corner buffer surface are separately arranged on both sides of outer corner surface, and the first outer corner buffer surface and the second outer corner buffer surface are respectively connected with the first support surface and the second support surface through the first outer corner arc surface and the second outer corner arc surface;When the first support surface and the second support surface are flattened and unfolded to 180 °, the transition surface forms a special-shaped groove recessed inward at the outer wall of the connection of the first support surface and the second support surface; The inner arc surface includes inner corner surface, and when the first support surface and the second support surface are close to each other and superimposed, the transition surface forms a triangular inner closed space at the inner side of the connection of the first support surface and the second support surface.
2. A portable folding corner structure for a collapsible four corner carton according to claim 1, wherein The first support surface includes first inner support surface, several groups of first outer support surface and corrugated board surface, the first outer support surface and corrugated board surface are the same in number and are connected in turn layer by layer, and the first inner support surface is the inner wall of the first support surface.
3. A portable folding corner structure for a collapsible four corner carton according to claim 2, wherein The second support surface includes second inner support surface, several groups of second outer support surface and corrugated board surface, and the structure of the second support surface and the first support surface is the same.
4. A portable folding corner structure for a collapsible four corner carton according to claim 3, wherein The first outer support surface, the second outer support surface and the outer arc surface are the same in number, the first outer support surface is connected with the second outer support surface through the outer arc surface, and the first inner support surface is connected with the second inner support surface through the inner corner surface.
5. A portable folding corner structure for a collapsible four corner carton according to claim 4, wherein, When the first support surface and the second support surface are perpendicular, the included angle between the inner corner surface and the second inner support surface is A, and the angle value range of A is 30 °-60 °.
6. A portable folding corner structure for a collapsible four corner carton according to claim 5, wherein, The outer corner surface is provided with first outer crease and second outer crease at the connection with the first outer corner buffer surface and the second outer corner buffer surface.
7. A portable folding corner structure for a collapsible four corner carton according to claim 6, wherein, The inner corner surface is provided with first inner crease and second inner crease at the connection with the first inner support surface and the second inner support surface.
8. A portable folding corner structure for a collapsible four corner carton according to claim 7, wherein, The outer corner surface is a plane structure.
9. A portable folding corner structure for a collapsible four corner carton according to claim 8, wherein, The outer corner surface is an arc structure.