Packaging structure and packaging blank thereof

Abstract

The invention relates to the technical field of food packaging, in particular to a packaging structure and a packaging blank thereof. At least one surface has three vertexes and at least one upright surface. The packaging with the triangular structure can enable the structure to be more stable, when the three vertexes are the top surface, because the sealing area is the perpendicular line of the triangle formed by the three vertexes, the top surface is split along the perpendicular line so as to open the triangular top surface 110, and the connected fins are unfolded together, so that the packaging is more stable. A large inclined opening can be obtained by opening all the sealing areas of the top 110. Compared with the prior art, the invention has the following technical effects: the support frame has a vertical surface, so that the support performance is better; and a three-vertex surface also exists, so that the stability of the packaging structure can be improved by utilizing the characteristic that a triangle is relatively stable.

Description

Technical Field

[0001] The invention relates to the technical field of food packaging, and in particular to a packaging structure and a packaging blank thereof. Background Art

[0002] Existing beverages such as milk are mostly contained in sealed packaging structures.

[0003] Referring to the patent document with the publication (announcement) number CN108349206A, the whole is a hexahedron with four supporting ribs and six side faces which are all parallelograms. However, the packaging structure is still easy to deform and the stability performance is poor.

[0004] Most of the existing technologies are six-sided brick-shaped packaging, which is not eye-catching enough on the shelf. If placed in a deeper position or at the lower level of the shelf, it is generally difficult to see the graphics on the front, and customers do not know what they are. In addition, the opening method is single, and external accessories are required, and the packaging cannot be poured out.

[0005] Referring to the patent document with publication (announcement) number CN101808816A, the front side is convenient for display (that is, it is conducive to attracting consumers), but it has no supporting ribs and the stability of the packaging is poor. Therefore, it is necessary to use thicker blanks or introduce other load-bearing supports such as bubbles.

[0006] The prior art Ecolean kettle is a package with an inclined surface, an inclined surface or a curved surface, and a pourable fluid channel, which can overcome the above problems, but sacrifices the stability of the package, and is composed of three pieces of packaging materials, and the process is complicated. Summary of the invention

[0007] The technical problem to be solved by the present invention is: how to provide a packaging structure that is both displayable and convenient to pour, and improves the stability of the packaging structure.

[0008] The technical solution of the present invention is specifically as follows: At least one face has three vertices and at least one vertical face.

[0009] The packaging with a triangular structure can make its structure more stable. When the three vertices are the top surface, because the sealing area is the vertical line of the triangle formed by the three vertices, the top surface is split along the vertical line to open the triangular top surface 110, and the connected wings are unfolded together. All the sealing areas of the top 110 are opened to obtain a larger oblique opening. A sealing structure formed by folding a packaging blank, wherein the surfaces with three vertices are sealing surfaces and / or upright surfaces, and the upright surface is perpendicular to at least one surface; The sealing surface of the packaging structure includes a top surface and a bottom surface; Having corners, including flat corners and non-flat corners, which can be arranged concavely or convexly toward the packaging structure; It also has a curved or inclined surface.

[0010] It should be noted that the surface defined by the three vertices is an imaginary triangular surface. In fact, the packaging can be composed of a smooth curved surface. The packaging has a three-vertex structure, or the upright side wall of the packaging is a structure composed of three vertices or three ribs on the inner angle. There is no very intuitive plane, so an imaginary plane defined by the three vertices is needed to define the positional relationship of non-intuitive surfaces such as the top or side.

[0011] The top surface or bottom surface refers to the top position and bottom position of the sealing area. When the surface expressed as three vertices is the top surface or the side surface, the meaning can be interpreted as: the imaginary surface defined by the three vertices is used to define the posture and position relationship of a certain surface on the package. When this imaginary surface is the top surface, that is, the inclination direction of the top of the package is consistent with the imaginary surface. When the imaginary surface is parallel to the bottom surface, that is, the upper edge and the lower edge of the package front view are parallel. In theory, the upper surface of the package is allowed to be stacked smoothly during transportation. When the imaginary surface is not parallel, the upper and lower edges of the package front view are not parallel, and the top is inclined. When stacked, there is a possibility that the items will slip, or the top surface may be unevenly stressed and broken due to heavy objects. When this imaginary surface is a side surface and is perpendicular to the bottom surface, that is, there is a side edge in the front view that is perpendicular to the lower edge, that is, the side of the package can be neatly placed against another upright package. The front view is a view angle diagram that cannot directly and completely observe the top surface, bottom surface, and side surface. Therefore, the positional relationship between the top surface or side surface with three vertices and the bottom surface described in the text is the positional relationship between the virtual surface and the bottom surface, which can be understood through the front view. The top surface bottom edge or the top surface side edge describes the virtual edge connected by the three points. When the technical features of the top surface, bottom surface or side surface are mentioned separately but not emphasized in the text, they are only used to refer to the position on the packaging structure, and do not include the plane technical features or concepts.

[0012] The vertical surface means at least perpendicular to the top or bottom surface of the sealing surface, and the top surface here is still an imaginary plane. The emphasis on the sealing surface means that it is the positional relationship between the top and bottom surfaces in the possible filling process, but it does not mean that it is the real bottom surface in actual use, or any side of the package can be used as the bottom surface according to the needs of use or design.

[0013] The sealing surface refers to the top and bottom surfaces of the transverse sealing area arranged transversely. Because the triangular structure is introduced, there will definitely be non-parallelism between the two related surfaces of the triangular structure, that is, an inclined surface or a curved surface.

[0014] Corner refers to the inwardly concave or outwardly convex structure formed on the side of the package. A flat corner is a structure where the upper and lower sides of the corner are in contact with each other. A non-flat corner is a cone-shaped structure where the upper and lower sides are not in contact with each other. The package is sealed by a sealing area. The continuous sealing area can be divided into a corner sealing area and a top sealing area according to the position relationship. The corner sealing area is the sealing area located at the position of the corner. When the corner is set toward the outside of the package, the sealing area extends continuously toward the corner sealing area. When the corner is set toward the inside of the package, the corner sealing area is folded and partially covered by the top sealing area.

[0015] It should be noted that when the folding direction of the outer folding angle (wing) is not emphasized in the solution, the flat outer folding angle folded outward can be fixed by arbitrarily attaching two adjacent surfaces to each other.

[0016] It should be noted that when the specific structure of the bottom surface is not emphasized in all the embodiments of this case, its specific structure can refer to the prior art.

[0017] The face with three vertices is a vertical face, and is composed of three vertices of non-flat angles that are concave inwards; the bottom surface of the packaging structure is a quadrilateral, which gradually shrinks upwards to form a line, and its front view is a trapezoid, that is, the opposite side of the vertical face has a non-flat angle that is obliquely convex outwards.

[0018] It should be noted that the bottom surface of the above packaging structure is a quadrilateral, and the upright surface is the virtual surface defined by the three vertices or three ridges of the inner folded angle 120 that is concavely folded into the package and exposed on the outside. The opposite side of the inner folded angle has a convex angle that can be used to set an opening, and the concave angle plays a supporting and fixing role. Further, it can be used to accommodate the convex angles of the same package. In this way, they can be processed together to achieve the effect of rowing. This embodiment is similar to the appearance of the Ecolean kettle, with a bevel and a grip, and an oblique pouring spout, but the Ecolean kettle requires three pieces of irregular blanks to be sealed, while this embodiment is folded from a single packaging blank. The present packaging structure can replace the Ecolean kettle to reduce both processing costs and processing steps.

[0019] The concave non-flat corners may be embedded by the convex non-flat corners, or, The convex non-flat corner can be covered or connected by the concave non-flat corner of another packaging structure, so that more than two packages can be neatly arranged or connected, and more than two packaging structures with convex corners can be matched.

[0020] It should be noted that the present invention provides a pot-shaped packaging structure, which has outwardly protruding corners and can be used as the outlet of the pot-shaped packaging; it also has inwardly concave corners, so that two identical packages can be assembled and sold like building blocks, and the protruding corners will not become an obstacle to transportation. The two-by-two interlocking structure can effectively protect the packaging structure, as well as the preset opening structure on the packaging structure, and can even open the package at the same time as it is disassembled and assembled. It is simple to operate, easy to use, and convenient to transport. Multiple packages can be produced and filled in groups, making production simple and efficient.

[0021] It should be noted that it is not emphasized here that another package with concave angles is consistent with the packaging structure of this case, that is, other packaging structures with suitable concave angles can be matched with the packaging structure of this case. In this way, more packages can be combined at will to achieve sales purposes or bring more other functions.

[0022] like Fig.25 , the two packages are neatly arranged or connected together.

[0023] The vertical surface of the packaging structure is a quadrilateral, and the surface with three vertices is the top surface; the bottom edge of the top surface has a connected flat angle, and the angle between the two sides of the flat angle is less than 90 degrees.

[0024] When the face of the three vertices is the top surface, since the top surface and the flat angle connected to the bottom edge of the top surface have a continuous sealing area, when the angle between the bottom edge of the top surface and the side edge of the top surface is less than 90 degrees, in order to keep the top surface and the bottom surface parallel, the area of ​​the flat angle will naturally become larger, but the bottom edge is a fixed value, then the flat angle with a triangular surface will be longer and its top angle will be sharper; further, by reducing the angle between the bottom edge of the top surface and the side edge of the top surface and maintaining the top surface horizontal, the flat angle will appear longer, larger in area, and smaller in top angle. A larger flat angle is very suitable for making an opening on it. And by opening the package from the sealing area of ​​the top surface, the triangular top surface can be split from it to obtain a larger oblique opening.

[0025] The opposite side of the vertical surface has a non-flat angle, the side vertex of the angle is located on the top surface and folds inward or outward; the side bottom edge of the non-flat angle is collinear or non-collinear with the edge of the bottom surface.

[0026] It should be noted that this embodiment includes the following solutions: 1. The non-flat angle is folded inwards, and the side bottom edge of the opposite non-flat angle is collinear with the bottom edge; 2. The non-flat angle is folded outwards, and the side bottom edge of the opposite non-flat angle is collinear with the bottom edge; 3. The non-flat angle is folded inwards, and the side bottom edge of the opposite non-flat angle is not collinear with the bottom edge; 4. The non-flat angle is folded outwards, and the side bottom edge of the opposite non-flat angle is collinear with the bottom edge. It should be further noted that the non-flat angle is a curved cone angle or a pyramid with ridges.

[0027] The opposite side of the upright surface has a longitudinally arranged flat angle, the side vertex of the angle is located on the top surface and is folded inwards or outwards; and / or The flat corners arranged longitudinally and folded outwards form handles through sealing and cutting, and the package can be opened through the flat corners or the top sealed area to form a pot-shaped package with a handle.

[0028] It should be noted that the longitudinally arranged flat angle here refers to an angle formed by two adjacent triangular pieces folded inward or outward, arranged longitudinally on opposite sides of the vertical surface, and the same angle has a sealing area. Further, this angle is folded outward and the two adjacent triangular pieces are sealed and perforated and cut at the sealing position to form a handle.

[0029] It is a triangular prism with a triangular bottom surface and a quadrilateral vertical surface that can be used as the bottom surface for transportation and use; and / or, The opposite side of the upright surface of the packaging structure in the form of a triangular prism has an integrally formed functional area structure, which can be used as a handle, or the interlayer is used for sealing accessories; and / or The opposite side edges of the vertical surface of the triangular prism can have openings.

[0030] It should be noted that there are at least the following combinations: 1. The sealed package is in the shape of a triangular prism; 2. The opposite side of the vertical surface of the triangular prism has a functional area such as a handle, or the double-layer functional area can clamp some accessories, such as straws, soup spoons, condiments, etc.; 3. The package can be opened by setting an opening at the position of the opposite side ridge of the vertical surface of the triangular prism; 4. All combinations of the above-mentioned technical features. It should also be noted that the bottom surface and the top surface of the sealed package when filled may be different from the bottom surface actually used. It should be further noted that the position of the opposite side ridge of the vertical surface of the triangular prism, that is, the edge of the functional area needs to be sealed to ensure the sealing performance, so that it can be further used as a functional area. Holes can be punched in the functional area to realize the function of a handle.

[0031] It is a triangular prism with a triangular bottom surface, and the quadrilateral vertical surface can be used as the bottom surface for transportation and use. The opposite side of the vertical surface of the packaging structure has an integrally formed functional area structure, which is used as a handle. The vertical surface of the triangular prism has an opening at the position of the opposite side ribs, and the packaging structure is a packaging bag.

[0032] It should be noted that the packaging structure here has an opening and is a non-sealed packaging structure, which can be understood as a packaging bag for holding items. All embodiments of the present case are folded from a single packaging blank, and a quadrilateral uses a bottom surface and two triangular sealing surfaces, which can support the packaging bag to stand upright on the table; and the packaging blanks of the two packaging units can complement each other in a centrosymmetrical manner to reduce the generation of waste. However, most packaging bags in the prior art have poor supporting performance, and relatively large pieces of waste need to be cut to form handles. It is necessary to provide a packaging that generates less waste during processing and has strong supporting performance. It is further explained that the two sealing surfaces of the triangular prism can be designed to be inclined toward each other, that is, the two sealing surfaces are not parallel.

[0033] The bottom surface of the packaging structure is a quadrilateral, which tapers upward to form a surface with three vertices, and its front view is a trapezoid, that is, the opposite side of the vertical surface also has a surface with three vertices, forming a convex angle, or the bottom surface of the packaging structure is a quadrilateral, which tapers upward to form a top surface with three vertices inclined obliquely, and the opposite side of the vertical surface also has a surface with three vertices, forming a convex angle.

[0034] There are two embodiments, one in which the upper top surface is parallel to the lower top surface, and the other in which the upper bottom surface is not parallel to the lower bottom surface. The opposite sides of the vertical surfaces of both have oblique non-flat convex corners, which can be provided with pouring outlets, or form grabbers that are easy to grasp when located on a shelf.

[0035] At least one side is tapered toward the opposite side; The packaging structure has an oblique opening and / or an oblique fluid channel, that is, an opening structure for opening is set on the convex corner, or the top surface sealing area is separated by an opening of the folding line of the corner sealing area at least located at the concave corner to unseal and form an oblique opening.

[0036] It should be noted that, because it has a triangular structure, there must be one side that tapers toward the opposite side along the triangular structure. In order to facilitate pouring, the packaging structure can open an opening at the convex corner or the triangular top surface to form an outlet. The flat corner (wing) is transformed from a flat corner to a non-flat pyramid corner by unfolding, so that the wing with an opening has a fluid channel through spatial changes.

[0037] See also Figure 3 The area surrounded by tear lines 1801, 1802, and 1803 is the sucking opening.

[0038] The packaging structure is composed of structural lines forming the supporting ridges of the vertical surface and the bottom surface, and the remaining area is divided by decorative lines, which include imaginary lines and / or trace lines. The imaginary line is the bending axis that makes the flat packaging blank bend into a curved surface, and the trace line is the ridge that makes the flat packaging blank bend into multiple surfaces. By partially or completely reducing the traces, at least two surfaces or areas are merged into a continuous surface and bent into a curved surface with an imaginary line; or by adding additional traces, a curved surface is split into at least two surfaces, or a plane is split to meet the needs of appearance and design.

[0039] It should be noted that, except for the vertical surface and the bottom surface with supporting ridges, the others are decorative lines. For example, the intersection lines of the top surface and the front surface can be eliminated to obtain a smooth curved surface extending from the top surface to the front surface; or such a smooth curved surface or plane can be split into multiple expected surfaces to meet the design needs. More traces can be added, and the traces can intersect with each other, but the traces cannot intersect with the imaginary lines at right angles. The imaginary line is not a real line, but is used to limit the bending direction or bending axis of the curved surface.

[0040] It is an integrated structure, with the upright surface and the bottom surface divided by structural lines and used to constitute its supporting ribs, and the remaining areas are divided by decorative lines. The decorative lines include imaginary lines and indentation lines. The imaginary lines are the bending axes that make the flat packaging blanks bend into curved surfaces, and the indentation lines are the ribs at the intersection of multiple surfaces when the flat packaging blanks are bent. It also has at least one corner area for bending into a non-flat angle, or at least one triangular top surface area.

[0041] The corner area at least includes a triangular bottom surface and a corner top surface area distributed on both side edges and connected thereto, or the side edges of the corner area are curved lines convex toward the corner area; It should be noted that, for the corner area used to form the inner or outer folded angle of the non-flat angle, the side edge convex outward will obtain a smoother curved support rib, making the package look more rounded and smooth, and forming an arched structure, which is also supportive.

[0042] Compared with the prior art, the technical effect of the present invention is that the present invention has a vertical surface with better supporting performance; there is also a three-vertex surface, which utilizes the relatively stable characteristics of the triangle to improve the stability of the packaging structure.

[0043] The top surface is a three-vertex angle. When the top surface sealing area is broken, the top surface can conveniently provide a larger oblique pouring outlet, or has a flat angle less than 90 degrees to facilitate the setting of the pouring outlet. When the expansion angle makes the flat angle turn into a convex angle, an oblique fluid channel can be formed; The side has three vertices, and the opposite side also has an oblique angle to facilitate the setting of openings to form an oblique fluid channel; The triangular structure will inevitably bring an inclined surface or a curved surface, which makes the display on the shelf more intuitive and has a more obvious visual effect. The visual angle of the inclined surface is larger than that of the straight surface, allowing customers to see the packaging at a glance from the side.

[0044] At the same time, packaging folded from a single blank and having a triangular structure can improve lateral or longitudinal stability.

[0045] Finally, the triangular surface must be inclined, which is more display-friendly. The triangular surface can also be used as a gripper to facilitate grabbing from the shelf. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 Schematic diagram of the packaging structure of the present invention (I).

[0047] Figure 2 Schematic diagram of the packaging structure of the present invention (II).

[0048] Figure 3 A schematic diagram of a sucking mouth.

[0049] Figure 4 Schematic diagram of the packaging structure of the present invention (III).

[0050] Figure 5 Schematic diagram of the packaging structure of the present invention (IV).

[0051] Figure 6 Schematic diagram of the packaging structure of the present invention (V).

[0052] Figure 7 Schematic diagram of the packaging structure of the present invention (VI).

[0053] Figure 8 Schematic diagram of the packaging structure of the present invention (VII).

[0054] Fig. 9 Schematic diagram of the packaging structure of the present invention (VIII).

[0055] Fig.10 Schematic diagram of the packaging structure of the present invention (IX).

[0056] Fig.11 Schematic diagram of the packaging structure of the present invention (X).

[0057] Fig.12 Schematic diagram of the packaging structure of the present invention (XI).

[0058] Fig.13 Schematic diagram of the packaging structure of the present invention (XII).

[0059] Fig.14 for Fig.12 Schematic diagram of the corresponding packaging blank.

[0060] Fig.15 for Figure 1 Schematic diagram of the corresponding packaging blank.

[0061] Fig.16 for Figure 2 Schematic diagram of the corresponding packaging blank.

[0062] Fig.17 for Figure 8 Schematic diagram of the corresponding packaging blank.

[0063] Fig.18 for Figure 6 Schematic diagram of the corresponding packaging blank.

[0064] Fig.19 for Fig.10 Schematic diagram of the corresponding packaging blank.

[0065] Fig. 20 for Fig.11 Schematic diagram of the corresponding packaging blank.

[0066] Fig.21 Schematic diagram (XIII) of the packaging structure of the present invention.

[0067] Fig. 22 for Fig.12 Schematic diagram of the corresponding packaging blank.

[0068] Fig.23 Schematic diagram (XIV) of the packaging structure of the present invention.

[0069] Fig.24 Schematic diagram (XV) of the packaging structure of the present invention. Fig.25 It is a schematic diagram of the packaging group of the present invention. DETAILED DESCRIPTION

[0070] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments thereof.

[0071] In this specification, each group of embodiments may include multiple embodiments, and the embodiments are grouped only to facilitate the description of this patent.

[0072] Technical term explanation: Three-vertex face: A plane or curved surface surrounded by three line segments and / or curves, with three vertices. Vertical plane: a side plane perpendicular to the bottom plane, or an imaginary plane defined by the three vertical angles of the top plane; Support rib: located on the vertical surface, at the fold line or intersection line extending upward or obliquely upward from the bottom surface; Flat angle: refers to a wing, a structure with at least two sides, and the edges of the two sides are attached to each other.

[0073] Non-flat angle: An angle in the shape of a pyramid or cone, where any faces do not touch each other and there is space.

[0074] Crease line: A straight line or fold line that makes it easy for a sheet to be folded along the mark. After folding, it becomes a pair of intersecting planes. The intersection line is the crease line, which is a line segment or a curve.

[0075] Junction line: The line where two adjacent sides join.

[0076] The vertical surface and the bottom surface are divided by structural lines and used to form supporting ribs, and the remaining area is divided by decorative lines. The decorative lines include imaginary lines and indentation lines. The imaginary lines are the bending axes that make the flat packaging blanks bend into curved surfaces, and the indentation lines are the ribs at the intersection of multiple surfaces when the flat packaging blanks are bent.

[0077] A packaging structure is formed by folding a packaging blank, the interior of which is a sealed space and includes at least one upright surface and a three-vertex surface.

[0078] The packaging structure has corners, including flat corners and tapered corners, which can be arranged concavely or convexly toward the packaging structure.

[0079] The face with three vertices is a vertical face, and is composed of three vertices of an inwardly concave tapered angle; the bottom surface of the packaging structure is a quadrilateral, and its cross-sectional area gradually decreases as the packaging structure gradually extends upward, and becomes linear when extending to the top of the packaging structure. It is trapezoidal when viewed from the front, that is, the opposite side of the vertical face has an obliquely convex tapered angle, which can be seen in the second group of embodiments.

[0080] The upright surface of the packaging structure is a quadrilateral, and the surface with three vertices is the top surface; the bottom edge of the top surface has a connected flat angle, and the angle between the two sides of the flat angle is not greater than 90 degrees, please refer to the third and fourth groups of embodiments.

[0081] The opposite side of the vertical surface has a tapered angle, the vertex of the angle is located on the top surface and folds inward or outward; the bottom side of the tapered angle is collinear or non-collinear with the edge of the bottom surface, please refer to the second group of embodiments.

[0082] The opposite side of the vertical surface has a longitudinally arranged flat corner, the side vertex of the corner is located on the top surface and is folded inward or outward; the longitudinally arranged flat corner folded outward forms a handle through sealing and cutting, and the package is opened through the flat corner or the top sealing area to present a pot-shaped package with a handle.

[0083] The bottom surface of the packaging structure is a quadrilateral, which tapers upwards and is trapezoidal in front view, that is, the opposite side of the vertical surface has a non-flat angle that bulges obliquely outward, as can be seen in the second group of embodiments.

[0084] The bottom surface area is not less than the cross-sectional area of ​​the top, that is, it gradually shrinks upward along the ridges of the packaging structure; the packaging structure has decorative structural lines, that is: the structural lines are imaginary lines and / or trace lines, so that at least two connecting surfaces on the folded packaging structure are partially or completely merged into a continuous curved surface, or the curved surface is split into at least two connected surfaces. At least two surfaces are parallel or perpendicular to each other, and the packaging structure has an oblique opening and / or an oblique fluid channel, that is, an opening structure for opening is set on the convex corner, or the top surface is unsealed to form an oblique opening. The inward folded corners are to promote the stability of the structure, and the outward folded corners are to form a structural area where an opening or other functions can be set. Part or all of the trace lines are converted with imaginary lines, so that at least two planes and curved surfaces can be converted into each other. The packaging structure has structural lines, including imaginary lines and trace lines; the imaginary lines are the bending axes of the curved surfaces, and the trace lines are used to bend the flat packaging blanks into the ridges of the packaging structure; the packaging structure has decorative trace lines, that is, by erasing part or all of the unnecessary and non-supporting trace lines, multiple surfaces or multiple areas can be merged into a continuous surface and bent into a curved surface; or a curved surface can be split into multiple surfaces by adding unnecessary and non-supporting trace lines, please refer to the fifth group of embodiments.

[0085] The packaging structure further comprises a top sealing area and a bottom panel. The packaging structure extending between the top sealing area and the bottom panel is formed by folding a packaging blank of a single packaging unit, that is, the tube packaging blank of a single packaging unit can be split by the longitudinal sealing area and unfolded to form a flat packaging blank of a single packaging unit. The packaging blank comprises at least: Bottom area, the entire area of ​​the quadrilateral bottom used for folding and sealing to form a packaging structure; The side area is arranged perpendicularly to the bottom area and is used to form the vertical surface and another side opposite thereto; The main surface area, including the front area and the rear area, is arranged perpendicular to the bottom surface area, and the left and right edges of the front panel are connected to the side areas; The corner area is located at the side area or connected to the upper edge thereof, and is used for folding to form a flat corner and a non-flat corner, and is divided into an inner corner area and an outer corner area according to the direction of the folded corner; the corner area is divided into a triangular main wing piece and a pair of triangular side wing pieces distributed on both side edges thereof due to folding; A longitudinal sealing area, which is longitudinally arranged at any position of the tubular packaging blank and is distributed on both sides of the flat packaging blank after being unfolded (preferably, the longitudinal sealing area does not pass through the flap area); Horizontal sealing area, including upper sealing area and corner sealing area (the horizontal sealing area is defined by the sealing edge and the cutting edge); Structural lines: The preset structural lines divide all the elements that constitute a single packaging body.

[0086] The first set of embodiments: like Figure 1 A packaging structure 100, whose side is a vertical surface 101, whose top and bottom surfaces are three-vertex surfaces, presenting a triangular pyramid shape. 110 and its opposite side are the upper and lower top surfaces for filling, but the vertical surface can be used as the bottom surface during transportation and use.

[0087] The second set of embodiments: A packaging structure 100 includes a bottom surface 100, the edge of the bottom surface 100 is folded and extended upward to form a side surface 101, and the cross-sectional area of ​​the side surface 101 gradually decreases as it gradually extends upward. When it extends to the uppermost end, a top sealing area 192 is formed, and an end of the top sealing area 192 is located in an area that is a convex corner area 121, and the other end of the top sealing area 192 covers a concave corner sealing area of ​​the concave corner area 120, that is, the apex of the concave corner is located inside the package.

[0088] like Figure 2 The two supporting ribs 180 of the vertical surface 101 are curved lines.

[0089] like Figure 5 , the two supporting ribs 180 of the vertical surface 101 are straight lines.

[0090] The third group of embodiments: like Figure 6-7 A packaging structure 100 has a bottom surface that is a quadrilateral, a side surface that is a quadrilateral upright surface 101, a side surface opposite to the upright surface 101 that is a three-vertex surface A106, and a top surface that is a three-vertex surface B105. The three-vertex surface A106 and the three-vertex surface B105 share a vertex 1051, and the vertex 1051 is far away from the packaging structure.

[0091] In this way, a grabbing angle 1052 is obtained at the vertex 1051. The grabbing angle 1052 is far away from the packaging structure and is relatively thin (that is, the distance from the front side to the rear side is relatively small), which is convenient for grabbing from the shelves of shopping malls and supermarkets.

[0092] like Figure 6 , the three-vertex surface B105 is a horizontal plane.

[0093] like Figure 8 The three vertex faces B105 are inclined planes, and the vertex 1051 is higher. The grabbing angle 1052 is more convenient for grabbing from shopping malls and supermarkets.

[0094] like Fig. 9 A pouring outlet 1053 is provided at the vertex 1051 .

[0095] like Figure 6-7 , the three-vertex surface A106 is an inclined plane.

[0096] The fourth group of embodiments: like Fig.10A packaging structure 100 has a bottom surface that is a quadrilateral, a side surface that is a quadrilateral upright surface 101, a side surface opposite to the upright surface 101 that is a three-vertex surface A106, and a top surface that is a three-vertex surface B105. The vertex P of the three-vertex surface A106 that is away from the upright surface 101 is located directly above the side MN of the bottom surface that is away from the upright surface 101, and the three-vertex surface A106 is an inclined plane.

[0097] In this way, a gripping angle 1055 is obtained in the area outside the vertex P. The gripping angle 1055 is far away from the packaging structure and is relatively thin (that is, the distance from the front side to the rear side is relatively small), which is convenient for grabbing in shopping malls and supermarkets. At the same time, PM and PN are two fold lines distributed in the vertical plane, which are also supporting ridges, which are convenient for support and can increase the stability of the packaging structure.

[0098] like Fig.11 , the point Q farthest from the bottom surface extends inwardly toward the packaging structure in the space between the front view surface and the back view surface until the vertex P is the edge of the upper surface. In this way, although the gripping angle becomes smaller, two supporting ribs and supporting ribs extending inwardly are obtained, which can increase the stability of the packaging structure.

[0099] The fifth group of embodiments: like Figure 12-14 , a packaging structure, whose bottom surface 169 is a quadrilateral, the bottom surface area is not less than the cross-sectional area of ​​the top 160, that is, the ridges 162 of the packaging structure gradually taper upward; the packaging structure has a decorative structural line 161, that is: The structural line is an imaginary line and / or a trace line, which partially or completely merges at least two connected surfaces on the folded packaging structure into a continuous curved surface, or splits the curved surface into at least two connected surfaces.

[0100] At least two sides are parallel or perpendicular to each other.

[0101] The packaging structure has an oblique opening and / or an oblique fluid channel, that is, an opening structure for opening is arranged on the outwardly convex corner, or the top surface is unsealed to form an oblique opening.

[0102] The inwardly folded corners are used to promote the stability of the structure, while the outwardly folded corners are used to form structural areas where openings or other functions can be set.

[0103] Part or all of the trace line is converted to an imaginary line so that at least two planes and curved surfaces can be converted to each other.

[0104] The packaging structure has structural lines, including imaginary lines and trace lines; the imaginary lines are the bending axes of the curved surfaces, and the trace lines are used to bend the flat packaging blanks to form the ridges of the packaging structure.

[0105] A packaging blank (also called packaging sheet) is a whole blank, and each area unit is divided by a structural line. The structural line includes an imaginary line and an indentation line. The imaginary line is the bending axis of the curved surface. The indentation line is used to make the flat packaging blank bend into a preset ridge. The indentation line includes an indentation or a crease line. A regional unit is a corresponding area of ​​a heavy surface, and also includes a corresponding area of ​​a three-vertex surface.

[0106] The sixth group of embodiments: A packaging blank is an integral structure, wherein a vertical surface 201 and a bottom surface 200 are divided by structural lines and used to constitute supporting ribs 203 thereof, and the remaining area is divided by decorative lines 204. The decorative lines 204 include imaginary lines and indentation lines. The imaginary lines are the bending axes that allow the flat packaging blank to be bent into a curved surface, and the indentation lines are the ribs that allow the flat packaging blank to be bent into multiple surfaces; and the blank has at least one corner area for bending into a non-flat angle, or at least one triangular top surface area.

[0107] The corner area at least includes a triangular bottom surface and two side edges thereof that are distributed and connected to the corner top surface area, or the side edges of the corner area are curved lines that bulge outwards toward the corner area.

[0108] The above content is the original text of the priority document No. 2023104726929, 2023.04.27, and the newly added claims 9-11 and 13-17 are declared as follows:

[0109] Definition of terms: Bottom surface 169: A plane with a sealing line after folding. Corner: The area 201 forming an angle on the packaging material is curled or folded inwardly or convexly to form a concave angle 120 or a convex angle 121, and the edge of the packaging material is sealed and connected by the folded angle sealing area to form a cone; it can be divided into three surfaces according to the position, wherein one side of the two upper surfaces is sealed by the folded angle sealing area; the bottom edge of the third surface does not coincide with the vertex of the sealing line. The inwardly concave or outwardly convex structure formed on the side of the package. Including flat corners (wings 191) and conical non-flat corners 121. Flat corners (wings 191): It is a flat corner, and the triangular wing 191 is in the shape of a flattened cone, that is, the two sealed sides are close to the third side, that is, folded to form a free end, which can be rotated and folded along the bottom edge to fit the adjacent surface. The flat corner has a structure in which the upper and lower sides of the corner are in contact with each other. It should be noted that when the scheme does not emphasize the folding direction of the outer folding angle (wing 191), the flat outer folding angle 191 folded outward can be arbitrarily close to the adjacent two surfaces for fixing. The wing 191 is used to connect the side structure 101 and the bottom structure 169, or to connect the functional side structure and the bottom structure, or to connect the side structure to the top structure. Flat angles have conventional 45-degree angles and non-45-degree angles. Flat angles can also be folded inward. Non-flat angles: conical, and the upper and lower surfaces are not attached to each other. Necessary supporting ribs (structural lines): in the expanded view, the bottom surface, and the line connecting the bottom edge of the folding angle and the vertex of the sealing line. Decorative line 204: that is, an imaginary line or an indentation line (indentation line = trace line = crease line = folding line). Side: a surface or structure that shares the same bottom edge with the folded angle. The side is a vertical surface, which is an actual surface or a fictitious surface. Front: a plane or curved surface connected to the side. Inclined surface: not parallel and perpendicular to one of the bottom surface and the side surface. Top structure 105: a top area divided into two sides by the sealing area. The front and rear top areas are sealed by the lateral sealing area to form a sealing surface. Functional side: an asymmetric structure opposite to the side. A side used to increase functions. Asymmetric: only talking about the state without attachments. From the perspective of the front of the package formed by folding a single piece of packaging material, the folding structures of the two sides, i.e., the side and the functional side are different, including the folding angle facing the inner concave fold or the outer convex fold of the package. a, b, and c point to three vertices respectively, and the three protruding vertices in the structure define a triangular imaginary surface.

[0110] The current packaging design on the market generally adopts a symmetrical structure, and its upper part is usually provided with two outward-turned corners. Although this design is visually more beautiful, the corners on the side of the package actually block part of the side of the package, thus affecting the product display effect. Therefore, the front of the package, as the main display surface, should be expanded as much as possible to optimize the display effect. Therefore, the ideal way to hold such packaging is to grab it from the side of the package, that is, one side faces the palm, the fingers are in contact with the main display surface of the package, and the other side faces outward. From an ergonomic point of view, on the one hand, the side facing outward is very suitable as a functional side, such as a pouring spout or a handle, but the existence of the outward-turned corners limits this functional design; on the other hand, for larger packaging, many 1-liter bottles adopt a symmetrical upright structure. The vertical cup wall of this structure is difficult to adapt to the grip and hand shape of different users, especially when the bottle is full or the hands are slippery, it is difficult for users to hold it firmly, and the package body is also difficult to maintain a stable shape and is easy to deform. The above problems can be effectively avoided by designing the asymmetrical structure of the package to introduce a triangular surface or structure. The existing packaging design lacks an asymmetric structure that can adapt to hand holding, which limits the functionality and ergonomic adaptability of the packaging. The asymmetric structure can add curved or inclined surfaces, which can not only better adapt to the ergonomic needs of hand holding, but also enhance the functionality of the packaging. Therefore, in order to solve these problems, this case aims to design one side of the packaging asymmetrically, that is, design the two sides into different structures to improve the stability of holding and display, and hope to add more functionality through a new packaging form to better meet ergonomic requirements. In short, it is to provide an asymmetric structure of an integrated folding package.

[0111] In some embodiments, the packaging blank is the smallest blank unit constituting the packaging structure, which may be an independent sheet blank or a repeating unit in a continuous roll; the transverse sealing area of ​​the bottom surface points to two sides with different structures respectively; the sealing surface of the packaging structure is the top structure or the bottom surface, and the sealing surface and / or the structure on both sides of the triangular structure have one end of the wing, which narrows toward the other end to one end point of the transverse sealing area; the structures on both sides are the side structure and the functional area structure; the upright surface 101 is the side structure, and the opposite side of the upright surface 101 is the functional area structure, that is, the upright surface 101 does not limit its verticality but is used to name and distinguish the two sides; the functional area is used to facilitate the addition of new functions at this position; it has corners, including flat corners or non-flat corners, and the corner structures can be folded concavely into the package or folded convexly outward from the package, and are sealed and connected by the sealing area, and the corners folded inwardly are partially folded and overlapped in the sealing area; the flat corner is the wing structure, which is folded into three connected triangular areas, and the area of ​​the wing area is the same as the two triangle areas on both sides thereof. The connecting surfaces are equal in area, and the connecting surfaces are folded with the fold edges on both sides of the flap area as axes, so that the two connecting surfaces are coplanar and sealed and connected by the corner sealing area, so that the surfaces on both sides are coplanar and overlap with the flap area to form a two-layer arrangement to form a flap structure, the flap area is used to connect the side surfaces, and the surfaces on both sides are respectively connected to the sealing surface structure divided into two parts by the transverse sealing area, and the sealing surface is the top surface or the bottom surface; the surface with three vertices is a side structure of the package, and the figure of this structure projected onto the reference plane determined by the three vertices is a triangle, That is, the structure is a triangular structure; the packaging structure has at least one triangular structure and one quadrilateral, and the ribs (intersection line) where the two intersect have a flat angle for connection and transition, the flat angle being the wing, which is abutted against any of the two surfaces with the ribs as the axis, and the other side of the quadrilateral surface also has a wing; when the projection surface of the top structure is a triangle, the imaginary surface formed by the three vertices of the top structure is parallel to the bottom surface, or inclined with the side of the wing as the axis; the packaging structure is a sealed structure, or a non-sealed packaging bag structure with an opening in the functional area.

[0112] Specifically, the bottom sealing area points to two different structures. The different structures are different structures formed by folding the packaging blank. When the angles of the same unfolded surface are folded in different directions, that is, one side is folded inward and the other side is folded outward, they are also different structures. The situation where different wings are folded toward the side or the sealing surface and any additional, adhesive structure, or structure that is not folded by the single packaging blank. The smallest cutting unit on the continuous packaging material is displayed independently in sheet form. Single does not mean independent components, and it can also be a composite material. The side structure is triangular when viewed from the front, which means that it is a triangle when viewed from the imaginary surface of this structure. One end narrows toward the other end, which can naturally be understood as a presentation form created by an asymmetric structure. The structures on both sides are side structures and functional area structures. Here, they are just for naming to distinguish the functions of the two different surfaces of the structure. One side is mainly designed to facilitate the addition of functions. The vertical surface 101 is a side structure. It is not limited here whether the vertical surface 101 has a vertical relationship with any surface, but only this side is named vertical surface 101. The flat angle is the wing. The wing in the literature of the prior art is named flat angle in this case to distinguish it from the non-flat angle. There must be a wing on each side of the quadrilateral surface. Only the bottom of the triangular structure can have only one wing. The triangular structure is composed of non-flat angles or sealing surfaces. The side of the pentagonal structure has a non-flat angle and a wing, because the non-flat angle can only result in a structure with a pointed top surface. The sealing of the package is not emphasized here. There is at least one triangular structure and one quadrilateral, and the two intersect, which means that this packaging structure must be an asymmetric structure with the quadrilateral gradually changing along the direction of the triangle. It reflects the diversity of packaging options.

[0113] In some embodiments, the functional area structure has a non-flat angle or a tapered line; the bottom edge of the non-flat angle side is collinear or non-collinear with the bottom edge; the vertex of the non-flat angle side is located on the top surface and folded inward or outward; the flat angle and bottom structure are necessary support ridges for the packaging structure; the lines between the vertices of the plane or curved surface can be added with traces; or the traces can be modified by replacing the straight line with an arc trace with the same starting point and end point, or deleting part of the trace to adjust the curvature of the packaging bottle. Having only a pair of wings of the same size is not a feature of all embodiments.

[0114] In some embodiments, the bottom surface and the side surface structure are quadrilateral surfaces; in the top structure, one end with a wing connected to the side structure is the bottom side of the triangular structure, and the bottom side of the triangular structure gradually shrinks toward the functional area structure to the vertex P at the other end, and the transverse sealing area extends vertically from the vertex P of the triangular structure to the bottom side; the front and back surfaces connecting the different two side structures are curved surfaces or at least two planes; and further comprising: the packaging structure has a total of three wing sheets, and at least one wing sheet has a different area from the other wing sheets; the functional area structure has a non-flat angle, that is, the flat angle passes through the vertex P and continues to fold outwardly toward the packaging structure, or the flat angle is formed by the top Point P is concave inwardly of the packaging structure to point Q for folding; the bottom side of the non-flat angle is collinear or non-collinear with the bottom edge of the packaging structure on the same side: when they are collinear, the side view of the packaging structure is a triangle; when they are non-collinear, the bottom side of the non-flat angle and the bottom edge of the packaging structure on the same side form a quadrilateral surface, that is, the side view of the packaging structure is a pentagon; the imaginary surface formed by the three vertices of the top structure is parallel to the bottom surface, or inclined with the side of the wing as the axis; or the packaging structure has three wings in total, and at least one wing has a different area from the other wings; the functional area structure has two layers of longitudinally arranged integrated folding molding The structure is folded concavely or convexly toward the package with the vertex P as the reference, and the figure of the functional area structure projected onto the imaginary surface where the side structure is located is a triangle; the imaginary plane formed by the three vertices of the top structure is parallel to the bottom surface, or inclined with the side of the wing as the axis; or the packaging structure has a total of three wings, and at least one wing has a different area from the other wings; in the top structure, the imaginary plane formed by the three vertices, that is, the imaginary plane formed by the bottom side and the vertex P is parallel to the bottom surface, and the length of the vertical line from the vertex P to the bottom side is greater than the width of the bottom surface in the same direction, that is, the functional area structure is inclined and convex away from the side structure toward the package; or the packaging structure has a total of three and the wing pieces are the same; in the top structure, the imaginary plane formed by the three vertices, that is, the imaginary plane formed by the bottom edge and the vertex P is not parallel to the bottom surface, and the length of the perpendicular line from the vertex P to the bottom edge is greater than the width of the bottom surface in the same direction, that is, the functional area structure is obliquely inclined and convex toward the package away from the side structure and the top surface is obliquely inclined, that is, the imaginary plane formed by the three vertices of the top structure is inclined with the edge of the wing piece as the axis; and / or the top structure and the functional area structure are imaginary lines or indentation lines, that is, they are rounded cone angles or cone angles with four sides, wherein the cone angle with four sides includes the triangular surface of the top structure and the triangular surface of the functional area structure, and the angle can be used to set the opening structure.

[0115] Specifically, the imaginary surface formed by the three vertices of the top structure is parallel to the bottom surface, or inclined with the side of the wing as the axis, which means that these embodiments have two technical solutions of an obliquely inclined top surface or a parallel top surface. Almost most packages can be set to an oblique top surface. The top structure is projected to the surface where the bottom surface is located, and the figure presented is a triangle, that is, this structure is a triangular structure. Gradually shrinking to the vertex p, it means that the two sides of the projected triangle of the top surface structure will also converge at one point, and point p can continue to extend a part of the structure inwardly or outwardly in a convex fold according to different embodiments. From the perspective of the imaginary surface where the three points are located as a cross-section, there is a line extending inward or outward from point p for a certain distance. As shown in Figures 10-13, the packaging structure has only three wings, among which the wing located on the top surface structure, that is, the wing on the bottom side of the tapered structure, is larger than other wings because it is affected by the tapered structure. The tapered opposite side must have a structure that produces a vertex, that is, a non-flat angle. If the bottom edge of the non-flat angle is collinear with the bottom surface, it will appear as a triangle when viewed from the side. If it is not collinear, the bottom edge and the edge of the bottom surface will have a certain distance. The resulting quadrilateral merges the flat angle's imaginary triangular surface, and the side view appears as a pentagon, with the tip facing upward and the two sides vertical. There is also a more advantageous embodiment, that is, the bottom edge of the non-flat angle is close to the bottom surface but does not overlap, that is, it appears triangular in side view, but the non-flat angle bottom edge actually has a smoother turning or transition with the bottom surface. It should be noted that in this case, a wing is larger and longer due to the gradual structure, because the angle of the wing is limited by the angle of the top surface, that is, the two adjacent sides on the top surface where the wing is located. When these two adjacent sides remain horizontally parallel, it is the existing packaging of the top surface quadrilateral of the Tetra Pak brick, and the wing will also maintain a 90-degree vertex angle because of these two sides. When these two sides are not parallel and have an intersection to form a triangle, the angle of the wing is determined according to the angle. In one embodiment, the functional area structure has a longitudinally arranged integral folding and forming two-sided sandwich structure, which means that the packaging material has two adjacent equal-sized areas, which are folded in half and abutted to form a two-layer structure. This structure is located at the end away from the wing, that is, the functional area, and is folded inward or outward with point p as the reference. When folded outward, this structure is a free end, which can be sealed and punched as a handle. At this time, the free end structure should be removed to observe the side view of the package, and the functional area is triangular. Figure 6 , 17 This is a triangle with a top surface that is parallel to the bottom surface. Since the width of the packaging blank, i.e. the distance between the two longitudinal sealing areas, is the same, the perimeter of the quadrilateral below the packaging is equal to the perimeter of the triangle on the top surface, and the sides have the same width, one side of the packaging is tilted when viewed from the front view, because the height of the top triangle is greater than the height of the bottom triangle under the same perimeter, so such a tilt occurs. However, in order to maintain the parallelism of the upper and lower top surfaces, it is necessary to adjust the area of ​​the packaging material used to form the top surface so that the edge shape is not a straight line, thereby changing the length and angle of the flap. Figure 7 ,8 , 18, the above method makes the edge shape not straight by adjusting the area of ​​the packaging material used to form the top surface, but it will bring challenges such as cutting, filling, and sealing. This embodiment does not make any adjustments, allowing the packaging structure to adapt to the material shape area. It can be seen that Fig.18 , the two lateral sealing areas are straight lines. The advantage of this is that the existing filling equipment can be used for filling and sealing without changing it. It is nothing more than adjusting the later folding process. However, this type of packaging will produce a cone-shaped shape that is convex and oblique to the upper end and the side surfaces, which are not parallel. However, the three flaps of this package are equal, and they are all ordinary 90-degree angles, and no adjustment is made. The additional general functional technical points that can be added to all the above-mentioned implementation examples are that the top structure and the functional area structure are phantom lines or indentation lines, that is, they are smooth cone angles or cone angles with four sides, wherein the cone angle with four sides includes the angular surface of the top structure and the angular surface of the functional area structure, and the angle can be used to set the opening structure. This can make the packaging smoother and have a stronger visual impact, in order to increase the sales rate.

[0116] In some embodiments, the sealing surface is a triangular surface, and the side structure is a quadrilateral surface, which can be used as a bottom surface for transportation and use; the packaging structure has a total of two wings; in the top structure, one end with a wing connected to the side structure is the bottom side of the triangular structure, and the bottom side gradually shrinks to the vertex at the other end in the direction of the functional area structure, that is, the transverse sealing area extends vertically from the vertex of the triangular structure to the bottom side; the transverse sealing area extends vertically from the vertex of the triangular structure to the bottom side; it also includes: the packaging structure is a sealing structure, and the graphic of the functional area structure projected onto the imaginary surface where the side structure is located is a line, that is, the packaging structure is a triangular prism; or the packaging structure is a sealing structure; the functional area structure has a longitudinally arranged integrally folded two-sided sandwich structure, which continues to extend outward from the vertex to the package to be folded and formed; the double-layer structure can be used as a handle, or the sandwich is used to seal accessories; or the packaging structure is a triangular prism; the functional area structure has a longitudinally arranged integrally formed structure, which continues to extend outward from the vertex to the package to be formed, which is used to form an opening and a handle, and the packaging structure is a non-sealed structure, which is a packaging bag with an opening; the sealing surface is perpendicular or non-perpendicular to the side structure.

[0117] Specifically, these embodiments mainly discuss the situation of triangular prism, that is, the sealing area of ​​the single wing featured in this case is applied to the packaging structure with both upper and lower triangles. It should also be noted that the top surface and the bottom surface can be parallel or non-parallel. Further, the longitudinally arranged integrated folding and forming two-layer structure protruding from the functional area means that the packaging material has two adjacent equal-sized areas, which are folded in half and abutted to form a two-layer structure. This structure is located at the end away from the wing, that is, the functional area. When folded outward, this structure is a free end, which can be sealed and punched as a handle. Another embodiment is that there is no longitudinal sealing line, only a transverse sealing line, and the packaging material has two adjacent equal-sized areas, and is located on both sides of the packaging blank. This area is not sealed and protrudes from the packaging setting, and is cut into a handle shape, so that the handle position and opening are both available, the upper and lower transverse sealing areas are sealed normally, and the wing is folded to both sides arbitrarily, as needed. This is a packaging bag with a non-sealed structure. This packaging bag has the advantage of being folded and formed by a single packaging blank, avoiding the sealing and splicing of multiple materials. Furthermore, if the handles of this packaging bag are placed on both sides of the blank, it will not be possible to perfectly splice the roll, so it is still necessary to design the position of the longitudinal sealing area so that the shape of the transverse sealing area is centrally symmetrical. Then, after sealing the longitudinal sealing area and the transverse sealing area, the unsealed double-layer area is punched or cut to form the opening and handle. The handle is on both sides or one side. As long as the double-layer structure is not sealed, the opening and handle can be formed by direct cutting.

[0118] In some embodiments, it is any group of technical features: the first group of technical features, the side structure and the functional area structure have a non-flat angle; the bottom surface is a quadrilateral surface, gradually shrinking upward to the transverse sealing area of ​​the top structure to form a line, with two vertices at both ends; in the side structure, the vertex located on one side of the side structure, the non-flat angle is concavely folded into the package with this vertex as the starting point; in the functional area structure on the opposite side of the side structure, the non-flat angle is based on the surface perpendicular to the edge of the bottom surface, convex toward the package and extends to the vertex located on one side of the functional area structure. The second group of technical features, further, the bottom side of the non-flat angle and the bottom edge of the packaging structure on the same side remain collinear or non-collinear: when collinear, the side view shape of the packaging structure is a triangle; when non-collinear, the bottom side of the non-flat angle and the bottom edge of the packaging structure on the same side form a quadrilateral surface, that is, the side view shape of the packaging structure is a pentagon; the third group of technical features, further, the angle concave inwardly folded into the packaging structure is consistent with or inconsistent with the angle convex outwardly folded into the packaging structure; that is, they remain inconsistent, the bottom side of the non-flat angle and the bottom edge of the packaging structure on the same side are collinear on one side and non-collinear on the opposite side; or both sides are non-collinear, and the distances between the bottom sides of the non-flat angle and the bottom edge of the packaging structure on the same side are different, and the quadrilateral surfaces formed are also different; or they remain consistent, the bottom side of the non-flat angle and the bottom edge of the packaging structure on the same side are collinear on both sides or the distances between them are the same, and the quadrilateral surfaces formed are also the same; the fourth group of technical features, further, the concave The shape of the angle and the convex angle are complementary and interlocking; the convex angle can be accommodated by the concave angle, that is, the concave angle can be embedded in the convex angle; the fifth group of technical features, further, through the set imaginary line or folding line, the inner concave angle or outer convex angle with a curved surface or multiple planes is formed by bending or folding; the convex angle and the concave angle are curved surfaces formed by curling the packaging material, and the curvatures of the two should be the same or complementary, and the curved surfaces are shapes that can be interlocked so that one can fit on the other; or the convex angle and the concave angle composed of multiple planes divided by the indentation line, then The angles and directions of the folding lines used to form each surface are consistent to ensure that the concave and convex parts match when connected; mapped to the surface where the bottom surface is located, the length of the convex corner protruding outside the package is less than or equal to the length of the concave corner recessed into the package, and the width of the convex corner is greater than or equal to the concave corner, to ensure that there is no excess or insufficient space between the two when spliced; the sharp angles of the inner concave corner and the outer convex corner should be parallel; the inner concave corner and the outer convex corner are designed to be smooth surfaces or have minimal folding lines, and the curvature radius matches to achieve an aesthetically pleasing appearance and plug-in function.

[0119] Specifically, each set of technical features is an embodiment, and the technical features inherit the previous set of technical features and are further improved. The concave corners and the ridges on the front of the packaging structure form folded edges to enhance the stability and support of the structure. The non-flat angles of the side structure and the functional area structure are close or similar in appearance from the unfolded view, but in fact, the difference is caused by the change in the folding direction, and the structures inside and outside can fit each other. Of course, the fitting relationship also needs to be considered. In the design of the unfolded view, the inward folded angle can add more arcs and distances to the edges to better accommodate the outward folded angles. It should be noted that the flat angles on both sides will produce a variety of combinations of implementation examples based on the collinearity or non-collinearity of the bottom edge of the non-flat angle and the bottom edge of the packaging structure on the same side. The angles on both sides may not be the same in the unfolded view. As long as one side is concave and the other side is convex, they are all embodiments emphasized in this case. For example, the unfolded diagrams of package a and package b are the same, and they can be filled and folded together continuously. The difference is that the corner areas on both sides of the unfolded diagram are different, so the folding directions of the two corners of the first package a and the second package b can be exactly opposite, so that the arrangement can be alternatingly spaced in the form of a, b, a, b. The packages can be folded manually or mechanically. In designs without obvious folding edges (imaginary lines), it should be ensured that the curved surface is defined by appropriate curvature so that it can maintain structural integrity and firmness of connection while being aesthetically pleasing; the elasticity of the material should be considered during the folding process to ensure that the folded shape is not affected by elastic deformation and the matching is not affected; the packaging material should have sufficient elasticity and hardness to maintain the folded shape and have folding lines to facilitate accurate folding; the thickness and strength of the material should be appropriate to maintain sufficient structural stability; the material thickness should be taken into account when designing complementarity, and the packaging material should have a certain elasticity to allow concave and convex corners to have a certain amount of bending and adjustment space when connected; the packaging material should be selected to have appropriate elasticity and bendability to facilitate folding and allow adaptive adjustment when connected; the net length or extreme value of the concave part and the protruding part (i.e. the distance from the base point to the farthest point) should be equal or have an appropriate tolerance range to allow insertion; it should also be noted that the above is a further improvement of the previous group.

[0120] In some embodiments, the smallest blank unit constituting the packaging structure may be an independent sheet blank or a repeating unit in a continuous roll; it includes at least two regions, which are respectively used to constitute the side structure and the functional area structure, and the graphics or folding directions or indentations of the two regions are different; at least one edge of the smallest blank unit is a centrally symmetrical shape, so that two identical units can be precisely connected head to head through these edges to form an integral continuous structure.

[0121] Specifically, there are at least two areas for forming different side structures and functional area structures. In addition to the different shapes on the packaging material, the indentations are different. The indentations are printed to facilitate bending along the indentations, from the inner surface to the outer surface and from the outer surface to the inner surface. For example, if the indentation is on the inner surface, the inner surface is easier to bend in its own direction, so that the inner surface is attached to the inner surface. The symmetry of the center of the edge makes it easier to assemble the long strip roll packaging material.

[0122] In some embodiments, at least one edge is of a centrally symmetrical shape and is not a straight edge; or has at least one corner area for bending to a non-flat angle, or has at least one triangular top surface area; or the corner area at least includes a triangular lower base surface and a corner top surface area distributed on both side edges and connected thereto, or the side edges of the corner area are curved lines convex toward the corner area.

[0123] Specifically, the triangular top surface of the packaging structure is divided into two triangular top surface areas by the transverse sealing area. The two connecting surfaces are folded in the direction of the wing area with the common edge as the axis, and the figure formed by the two connecting surfaces coincides with the wing area. Furthermore, the wing angle is less than 90 degrees, so the wing is longer than the wing in the prior art, that is, the wing with the same bottom edge and the top angle less than 90 degrees is larger. The structure of only one wing on the sealing surface will cause the existence of a wing less than 90 degrees. The blank is the basic unit of the packaging material. During processing, a series of operations such as curling, folding, sealing and filling are performed on the blank of a single basic unit or the long strip packaging material of multiple basic units in a roll. In order to save costs, such packaging blanks with non-straight edges should have a splicable edge. By adjusting the position of the longitudinal sealing line and coordinating the wing with the longitudinal sealing line, corresponding adjustments can be made so that two identical packaging blank units can be spliced ​​head to head in groups of two.

[0124] In some embodiments, a packaging group is characterized by having the following interrelated technical features: the first group of technical features: a packaging structure used to constitute the packaging group, wherein the height of the bottom edge of the inward concave fold angle and the outward convex angle is consistent or inconsistent; when the inconsistency is maintained, the bottom edge of the non-flat angle is collinear with one side of the bottom edge of the packaging structure on the same side, while the opposite side is not collinear; or both sides are not collinear, and the distances between the bottom edges of the non-flat angles on both sides and the bottom edge of the packaging structure on the same side are different, and the quadrilateral surfaces formed are also different; when the consistency is maintained, the bottom edge of the non-flat angle is collinear with both sides of the bottom edge of the packaging structure on the same side or the distances between the two are the same, and the quadrilateral surfaces formed are also the same; the second group of technical features, the above is further: multiple packaging structures are interconnected by means of concave and convex embedding, wherein the convex non-flat angle is covered or connected by the concave non-flat angle of another packaging structure; comprising the same properties of the angle but folded Two packaging structures in opposite directions can be connected to each other in a concave-convex manner; multiple identical packages are inserted into the concave corners of adjacent packages through the convex corners of one package to achieve the connection of multiple packaging structures in the lateral direction, and together form an overall arrangement, optimizing space utilization and enhancing the stability of the overall structure; the third group of technical features is a further improvement of the above: the same packaging blank can constitute two opposite packaging structures, that is, the first package and the second package can present a consistent unfolding diagram, but the non-flat angle folding directions of the first package and the second package are opposite, then the two can be continuously assembled into a roll of packaging material to achieve continuous filling and folding, the first package and the second package can be a group, arranged in an alternating interval manner of the first package, the second package, the first package, and the second package, that is, the first package and the second package can be alternately filled and alternately arranged, so as to allow multiple packages to be compactly arranged and stored, saving space and facilitating transportation.

[0125] Specifically, each group of technical features is an embodiment, and the bottom edge heights of the concave angle and convex angle on both sides have different possibilities, among which, there are mainly three types of embodiments: when they are kept inconsistent, the bottom edge of the non-flat angle is collinear with one side of the bottom edge of the packaging structure on the same side, while the opposite side is not collinear, so that the bottom edge of the non-flat angle is one side high and the other side low, and the high side and the low side can be concave inward or convex outward, but the concave-convex relationship on both sides is opposite, one side is concave inward and the opposite side is convex outward. Or both sides are not collinear, and the distances between the bottom edges of the non-flat angles on both sides and the bottom edge of the packaging structure on the same side are different, and the quadrilateral faces formed are also different; when they are kept consistent, the bottom edge of the non-flat angle and the bottom edge of the packaging structure on the same side are both collinear or the distances between the two are the same, and the quadrilateral faces formed are also the same. It should be noted that the technical features of these three groups of embodiments are gradually supplemented. The first group defines the basic form and changes of the packaging structure, the second group provides a practical connection and assembly method through the design of concave and convex interlocking, and the third group of technical features further utilizes this connection method to achieve a specific filling and arrangement strategy, thereby improving the functionality and practicality of the packaging. This design integrates the flexibility of the structure, the reliability of the connection, and the efficiency of filling, storage and transportation to form a comprehensive solution. For example, if the functional area of ​​the first package is set with an outward corner, the functional area of ​​the second package is set with an inward corner, and the opposite side of the functional area is the same principle.

[0126] For other contents, please refer to the prior art. The above are only preferred embodiments of the present invention. It should be noted that for those skilled in the art, several changes and improvements can be made without departing from the overall concept of the present invention, which should also be considered as the protection scope of the present invention.

Claims

1. A packaging structure having at least one side with three vertices and at least one vertical face.

2. The packaging structure according to claim 1, characterized in that: A sealing structure formed by folding a packaging blank, wherein the surfaces with three vertices are sealing surfaces and / or upright surfaces, and the upright surface is perpendicular to at least one surface; Folded from a single packaging blank; the sealing surface of the packaging structure includes the top surface and the bottom surface; Having corners, including flat corners and non-flat corners, which can be arranged concavely or convexly toward the packaging structure; When the three vertices are the top surface, the sealing area is the vertical line of the triangle formed by the three vertices; or when the surface of the three vertices is a vertical surface, it is composed of three vertices with non-flat angles concave inwards, and the opposite side has a non-flat angle that is obliquely convex outwards; It also has a curved or inclined surface.

3. The packaging structure according to claim 2, characterized in that: The surface with three vertices is a vertical surface, and is composed of three vertices with non-flat angles that are concave inwards; the bottom surface of the packaging structure is a quadrilateral, which tapers upward to a line, and its front view is a trapezoid, that is, the opposite side of the vertical surface has a non-flat angle that is obliquely convex outwards; and also includes: The concave non-flat corners may be embedded by the convex non-flat corners, or, The convex non-flat corner can be covered or connected by the concave non-flat corner of another packaging structure, so that more than two packages can be neatly arranged or connected, and more than two packaging structures with convex corners can be matched.

4. The packaging structure according to claim 2, characterized in that: The vertical surface of the packaging structure is a quadrilateral, the surface with three vertices is the top surface; the bottom edge of the top surface has a connected flat angle, and the angle between the two sides of the flat angle is less than 90 degrees, and also includes: The opposite side of the vertical face has a non-flat angle, the vertex of the side face of the angle is located on the top face and folds inward or outward; the bottom edge of the side face of the non-flat angle is collinear or non-collinear with the edge of the bottom face; or The opposite side of the upright surface has a longitudinally arranged flat corner, the side vertex of the corner is located on the top surface and is folded inward or outward; and / or the longitudinally arranged flat corner folded outward forms a handle through sealing and cutting, and the package is opened through the flat corner or the top sealing area to present a pot-shaped package with a handle.

5. The packaging structure according to claim 2, characterized in that: A triangular prism with a triangular base and a quadrilateral upright surface that can be used as the base for transportation and use; or A packaging structure in the form of a triangular prism, with a triangular bottom surface and a quadrilateral vertical surface that can be used as the bottom surface for transportation and use, and an integrally formed functional area structure on the opposite side of the vertical surface that can be used as a handle, or an interlayer for sealing accessories; or It is a triangular prism with a triangular bottom surface, and the quadrilateral vertical surface can be used as the bottom surface for transportation and use; the opposite side of the vertical surface of the packaging structure has an integrally formed functional area structure for setting as a handle; the opposite side of the vertical surface of the triangular prism has an opening at the position of the rib, and the packaging structure is a packaging bag.

6. The packaging structure according to claim 2, characterized in that: The bottom surface of the packaging structure is a quadrilateral, which tapers upward to form a surface with three vertices. The front view is a trapezoid, that is, the opposite side of the vertical surface also has a surface with three vertices, which is a convex angle, or The bottom surface of the packaging structure is a quadrilateral, and the top surface is tapered upward to form three vertices that are inclined obliquely, and the opposite side of the upright surface also has a surface with three vertices, which is a convex angle.

7. The packaging structure according to claims 1 to 6, characterized in that: At least one side is tapered toward the opposite side; The packaging structure has an oblique opening and / or an oblique fluid channel, that is, an opening structure for opening is provided on the convex corner, or the top sealing area is separated by an opening at least at the folding line of the corner sealing area at the concave corner to unseal and form an oblique opening; and / or The packaging structure is composed of structural lines that form the supporting ridges of the vertical surface and the bottom surface, and the remaining area is divided by decorative lines. The decorative lines include imaginary lines and / or trace lines. The imaginary lines are the bending axes that make the flat packaging blanks bend into curved surfaces, and the trace lines are the ridges at the intersection of multiple surfaces that the flat packaging blanks bend into. That is, by reducing part or all of the trace lines, at least two surfaces or areas are merged into a continuous surface, and bent into a curved surface with imaginary lines; or by adding additional trace lines, the curved surface is split into at least two surfaces, or a plane is split to meet the needs of appearance and design.

8. The packaging structure according to claim 1, characterized in that: Folded from a single packaging blank; the packaging blank is the smallest blank unit constituting the packaging structure, which can be an independent sheet blank or a repeating unit in a continuous roll; the transverse sealing area of ​​the bottom surface points to two sides with different structures respectively; the sealing surface of the packaging structure is the top structure or the bottom surface, and the sealing surface and / or the structure of the two sides of the triangular structure are that one end with a wing is narrowed to one end point of the transverse sealing area toward the other end; the structures on both sides are the side structure and the functional area structure; the upright surface is the side structure, and the opposite side of the upright surface is the functional area structure, that is, the upright surface does not limit its verticality but is used to name and distinguish the two sides; the functional area is used to add new functions at this position; The packaging structure has a curled or folded corner, which can be a concave corner formed by folding inward or a convex corner formed by folding outward; the corner is further divided into a flat angle and a non-flat angle according to its spatial form, a conical angle is a non-flat angle, and a flat double-layer structure is a flat angle, and a flat angle is a wing structure; the side with the three vertices is a side structure of the packaging, and the figure of this structure projected onto the reference plane determined by the three vertices is a triangle, that is, this structure is a triangular structure; the packaging structure has at least one triangular structure and one quadrilateral face, and the ribs at the intersection of the two have wings for connection and transition, and any one of the two faces is abutted with the ribs as the axis, and the other side of the quadrilateral face also has wings.

9. The packaging structure according to claim 8, characterized in that The packaging structure is a sealed structure, and the bottom surface and the side structure are quadrilateral surfaces; in the top structure, the end with the wing connected to the side structure is the bottom side of the triangular structure, and the bottom side of the triangular structure gradually shrinks toward the functional area structure to the vertex P at the other end, and the transverse sealing area extends vertically from the vertex P of the triangular structure to the bottom side; The front and back surfaces connecting the different two side structures are curved surfaces or at least two planes; and further comprising: The packaging structure has three wings in total, and at least one wing has a different area from the other wings; the functional area structure has a non-flat angle, that is, the flat angle continues to fold convexly beyond the vertex P toward the packaging structure, or the flat angle is folded concavely from the vertex P to the packaging structure to point Q; the bottom edge of the non-flat angle is collinear or non-collinear with the bottom edge of the packaging structure on the same side: when collinear, the side view of the packaging structure is a triangle; when non-collinear, the bottom edge of the non-flat angle and the bottom edge of the packaging structure on the same side form a quadrilateral surface, that is, the side view of the packaging structure is a pentagon; the imaginary surface formed by the three vertices of the top structure is parallel to the bottom surface, or inclined with the side of the wing as the axis; or The packaging structure has three wings in total, and at least one wing has a different area from the other wings; the functional area structure has a longitudinally arranged integrated folded two-layer structure, which is folded concavely or convexly outwardly toward the package with the vertex P as the reference, and the functional area structure is projected onto the imaginary surface where the side structure is located, and the figure is triangular; the imaginary surface formed by the three vertices of the top structure is parallel to the bottom surface, or inclined with the side of the wing as the axis; or The packaging structure has three wings in total, and at least one wing has a different area from the other wings; in the top structure, the imaginary plane formed by the three vertices, that is, the imaginary plane formed by the bottom edge and the vertex P is parallel to the bottom surface, and the length of the vertical line from the vertex P to the bottom edge is greater than the width of the bottom surface in the same direction, that is, the functional area structure is inclined and convex away from the side structure toward the packaging; or The packaging structure has three identical fins; in the top structure, the imaginary plane formed by the three vertices, that is, the imaginary plane formed by the bottom edge and the vertex P is not parallel to the bottom surface, and the length of the vertical line from the vertex P to the bottom edge is greater than the width of the bottom surface in the same direction, that is, the functional area structure is inclined and convex away from the side structure toward the packaging and the top surface is inclined, that is, the imaginary plane formed by the three vertices of the top structure is inclined with the edge of the fin as the axis; and / or The top structure and the functional area structure are imaginary lines or indentation lines, that is, they are rounded cone angles or cone angles with four sides, wherein the cone angle with four sides includes the triangular face of the top structure and the triangular face of the functional area structure, and the angles can be used to set the opening structure.

10. The packaging structure according to claim 8, characterized in that The sealing surface is a triangular surface, and the side structure is a quadrilateral surface, which can be used as the bottom surface for transportation and use; the packaging structure has two flaps in total; in the top structure, one end with the flap connected to the side structure is the bottom side of the triangular structure, and the bottom side gradually shrinks to the vertex at the other end in the direction of the functional area structure, that is, the transverse sealing area extends vertically from the vertex of the triangular structure to the bottom side; the transverse sealing area extends vertically from the vertex of the triangular structure to the bottom side; and also includes: The packaging structure is a sealed structure, and the functional area structure is projected onto the imaginary surface where the side structure is located in a line shape, that is, the packaging structure is a triangular prism; or The packaging structure is a sealed structure; the functional area structure has a longitudinally arranged integrated folded two-sided sandwich structure, which continues to extend outward from the package beyond the vertex and is folded; the double-layer structure can be used as a handle, or the sandwich is used to seal accessories; or The packaging structure is a triangular prism; the functional area structure has a longitudinally arranged integrally formed structure, which continues to extend outward from the apex to the packaging to form an opening and a handle. The packaging structure is a non-sealed structure and is a packaging bag with an opening; the sealing surface is perpendicular or non-perpendicular to the side structure.

11. The packaging structure according to claim 8, characterized in that For any set of technical features: The first group of technical features is that the packaging structure is a sealed structure, and the side structure and the functional area structure have non-flat angles; The bottom surface is a quadrilateral surface, which gradually shrinks upward to the transverse sealing area of ​​the top structure to form a line, with two vertices at both ends; in the side structure, the vertex located on one side of the side structure, the non-flat angle is concavely folded into the package with this vertex as the starting point; in the functional area structure on the opposite side of the side structure, the non-flat angle is convex to the outside of the package and extends to the vertex located on one side of the functional area structure with the surface perpendicular to the edge of the bottom surface as the reference; The second set of technical features, further, the bottom side of the non-flat angle and the bottom edge of the packaging structure on the same side are collinear or non-collinear: when collinear, the side view of the packaging structure is triangular; when non-collinear, the bottom side of the non-flat angle and the bottom edge of the packaging structure on the same side form a quadrilateral surface, that is, the side view of the packaging structure is a pentagon; The third group of technical features is that the angle concavely folded inwardly of the packaging structure is consistent or inconsistent with the angle convexly folded outwardly of the packaging structure; that is, they are inconsistent, the bottom edge of the non-flat angle is collinear with the bottom edge of the packaging structure on the same side on one side, but not collinear on the opposite side; or both sides are not collinear, and the distances between the bottom edges of the non-flat angles on both sides and the bottom edge of the packaging structure on the same side are different, and the quadrilateral faces formed are also different; or they are consistent, the bottom edge of the non-flat angle and the bottom edge of the packaging structure on the same side are collinear or the distances between the two are the same, and the quadrilateral faces formed are also the same; The fourth set of technical features is as follows: the concave corner and the convex corner are complementary in shape and fit into each other; the convex corner can be accommodated by the concave corner, that is, the concave corner can be embedded in the convex corner; The fifth group of technical features, further, through the set imaginary line or folding line, to form an inner concave angle or outer convex angle with a curved surface or multiple planes by bending or folding; the convex angle and the concave angle are curved surfaces formed by curling the packaging material, the curvatures of the two should be the same or complementary, and the curved surfaces are shapes that can be interlocked so that one can fit onto the other; or the convex angle and the concave angle are divided into multiple planes by the indentation line, the angles and directions of the folding lines used to form each surface are consistent, ensuring that the concave and convex parts match when docking; mapped to the surface where the bottom surface is located, the length of the convex angle protruding outside the package is less than or equal to the length of the concave angle recessed into the package, and the width of the convex angle is greater than or equal to the concave angle, to ensure that there is no excess or insufficient space between the two when spliced; the sharp angle directions of the inner concave angle and the outer convex angle should be parallel; the inner concave angle and the outer convex angle are designed as smooth curved surfaces or have minimized folding lines, and the curvature radius matches to achieve an aesthetically pleasing appearance and plug-in function.

12. A packaging blank according to claim 1, characterized in that: It is an integrated structure, with the vertical surface and the bottom surface divided by structural lines and used to form its supporting ribs, and the remaining areas are divided by decorative lines. The decorative lines include imaginary lines and indentation lines. The imaginary lines are the bending axes that make the flat packaging blanks bend into curved surfaces, and the indentation lines are the ribs where the flat packaging blanks bend into multiple surfaces.

13. A packaging blank according to claim 12, characterized in that: It is the smallest blank unit that constitutes the packaging structure, which can be an independent sheet blank or a repeating unit in a continuous roll; At least two regions are included, which are used to form a side structure and a functional area structure respectively, and the patterns or folding directions or indentations of the two regions are different; At least one edge of the smallest blank unit is of a centrally symmetrical shape, so that two identical units can be precisely butted together in a head-to-head manner through the edges to form an integral continuous structure.

14. A packaging blank according to any of claims 12-13, characterized in that: At least one edge is of a centrally symmetrical shape and is not a straight edge; or At least one corner region for bending at a non-flat angle, or at least one triangular top surface region; or The corner area at least includes a triangular bottom surface and two side edges thereof that are distributed and connected to the corner top surface area, or the side edges of the corner area are curved lines that bulge outwards toward the corner area.

15. A packaging group according to claim 1, characterized in that: A packaging structure with a concave non-flat corner can be embedded in another packaging structure with a convex non-flat corner, or a packaging structure with a convex non-flat corner can be covered or connected by another packaging structure with a concave non-flat corner, thereby achieving neat arrangement or connection of more than two packages and matching two or more packaging structures with convex corners.

16. A packaging group according to claim 15, characterized in that: A packaging structure in the shape of a pot has an outwardly convex corner which can be used as a pouring spout of the pot-shaped packaging; it also has an inwardly concave corner so that two identical packages can be assembled and sold like building blocks, and the outwardly convex corners will not become an obstacle to transportation. The two-by-two interlocking can effectively protect the packaging structure, as well as the opening structure preset on the packaging structure, and the packaging can even be opened while being disassembled and assembled. The operation is simple, the use is convenient, and the transportation is convenient. Multiple packages can be produced and filled in groups, making the production simple and efficient.

17. A packaging group according to claim 16, characterized in that: A packaging group, characterized by having any one of the following technical features: The first set of technical features: A packaging structure for forming a packaging group, wherein the height of the bottom edge of the inwardly concave corner and the outwardly convex corner is consistent or inconsistent; When the inconsistency is maintained, the bottom edge of the non-flat angle is collinear with one side of the edge of the bottom surface of the packaging structure on the same side, but not on the opposite side; or both sides are not collinear, and the distances between the bottom edges of the non-flat angles on both sides and the edge of the bottom surface of the packaging structure on the same side are different, and the quadrilateral faces formed are also different; When they are consistent, the bottom edge of the non-flat angle and the two sides of the bottom edge of the packaging structure on the same side are collinear or the distance between them is the same, and the quadrilateral faces they form are also the same; The second set of technical features, the above further: Multiple packaging structures are connected to each other by means of concave-convex interlocking, wherein the convex non-flat corner is covered or connected by the concave non-flat corner of another packaging structure; Two packaging structures having the same corner properties but opposite folding directions can be connected to each other in a concave-convex manner; Multiple identical packages are inserted into the concave corners of adjacent packages through the convex corners of one package, so that multiple packaging structures are connected in the horizontal direction and form an overall arrangement together, optimizing space utilization and enhancing the stability of the overall structure; The third set of technical features is further: The same packaging blank can constitute two opposite packaging structures, that is, the first package and the second package can present a consistent unfolding diagram, but the non-flat angle folding directions of the first package and the second package are opposite, so the two can be continuously assembled into a roll of packaging materials to achieve continuous filling and folding. The first package and the second package can be a group, arranged in an alternating interval manner of the first package, the second package, the first package, and the second package, that is, the first package and the second package can be alternately filled and alternately arranged to allow multiple packages to be compactly arranged and stored, saving space and facilitating transportation.

Images