Paperboard, carton and folding forming method thereof

Abstract

The present application relates to a paperboard, a carton and a folding and forming method thereof, and belongs to the field of logistics packaging technology. The paperboard proposed in the present application includes a plurality of pairs of mutually cooperating first positioning structures and second positioning structures, wherein the first positioning structure is arranged on the folding plate, and the second positioning structure is provided with an insert tongue. In the process of folding the paperboard proposed in the present application to form a carton, the folding plate and the insert tongue can be connected in an anti-disassembly manner through the cooperation of the first positioning structure and the second positioning structure, thereby realizing the sealing and anti-theft and disassembly functions of the carton.

Description

Technical Field

[0001] The present application relates to the field of logistics packaging technology, and in particular to a paperboard, a carton and a folding and forming method thereof. Background Art

[0002] The traditional method of sealing logistics cartons is to fold along the indentation of the cardboard and then use tape or glue to seal the logistics cartons. This not only leads to low sealing efficiency, but also is not environmentally friendly. In addition, during the transportation of logistics cartons, other people can also open the carton without permission, steal or replace the items in the carton, and then seal the carton. The consignee cannot tell whether the carton sealed by the sender has been opened by others, resulting in poor anti-theft performance of the carton. Summary of the invention

[0003] To this end, the present application proposes a paperboard, which can be folded to form an outer box that can be sealed without using auxiliary materials such as tape and glue.

[0004] The paperboard proposed in some embodiments of the present application includes an upper wall panel, a lower wall panel, a first side panel, a second side panel, a third side panel, and a fourth side panel. The upper and lower sides of the first side panel are connected to the upper wall panel and the lower wall panel by folds respectively. The right side of the first side panel is connected to the second side panel, the third side panel, and the fourth side panel by folds in sequence. The upper wall panel, the lower wall panel, the first side panel, the second side panel, the third side panel, and the fourth side panel can be enclosed to form a hexahedral carton with an inner cavity. The upper and lower sides of the second side panel and the fourth side panel each extend a folding plate, and the edge of the folding plate close to the third side panel is provided with a first positioning structure; the upper end of the upper wall panel and the lower end of the lower wall panel extend tongues respectively, and each tongue is provided with two second positioning structures; when the upper wall panel is folded relative to the first side panel and the inner cavity is closed, a first positioning structure can cooperate with a second positioning structure to connect the upper wall panel with the folding plate; when the lower wall panel is folded relative to the first side panel and the inner cavity is closed, a first positioning structure can cooperate with a second positioning structure to connect the lower wall panel with the folding plate.

[0005] Through the cooperation between the first positioning structure and the second positioning structure, the carton folded by the paperboard can achieve the functions of sealing and anti-theft.

[0006] In addition, the paperboard according to the embodiment of the present application also has the following additional technical features:

[0007] According to some embodiments of the present application, the first positioning structure includes two relatively arranged square ears, which are connected to the fold of the fold plate. When the square ears are folded relative to the fold plate and perpendicular to the fold plate, the two square ears form an anti-theft buckle. The second positioning structure is a square hole, and a square hole can cooperate with an anti-theft buckle to connect the fold plate to the upper wall plate or the lower wall plate.

[0008] The first positioning structure is two square ears, which can form an anti-theft buckle after folding; the second positioning structure is a square hole. The first positioning structure is set as a protruding structure, and the second positioning structure is set as a hole, so that the tongue where the second positioning structure is located can be easily inserted between the upper wall plate or the lower wall plate and the folding plate.

[0009] According to some embodiments of the present application, the edges of the square ears are provided with rounded corners. This arrangement enables the anti-theft buckle formed after the square ears are folded to have a guiding arc surface, so that the anti-theft buckle can slide into the square hole easily.

[0010] According to some embodiments of the present application, an inner support plate extends from each of the upper and lower sides of the third side plate, and the inner support plate includes at least one missing corner or through hole. The inner support plate can further protect the items placed in the outer box formed by cardboard, and the arrangement of the missing corner or through hole can facilitate the user to open the inner support plate by hand.

[0011] According to some embodiments of the present application, an easy folding line is provided on the folding plate, and the easy folding line divides the folding plate into a main body and a corner away from the first side plate, and the first positioning structure is provided at the corner. Providing the easy folding line at the corner not only clarifies the folding line of the corner relative to the folding plate, but also partially enhances the connection strength between the corner and the folding plate.

[0012] Some embodiments of the present application provide a carton, which is formed by folding the above-mentioned paperboard. The outer box formed by folding the above-mentioned paperboard has a pair of first positioning structures and second positioning structures, which can realize the tape-free sealing and anti-theft and disassembly functions of the outer box.

[0013] Some embodiments of the present application propose a carton, which includes an upper wall panel, a lower wall panel, a first side panel, a second side panel, a third side panel, a fourth side panel, an upper insert tongue, and two upper return folding panels, the upper wall panel is opposite to the lower wall panel, the first side panel is opposite to the third side panel, the second side panel is opposite to the fourth side panel, one upper return folding panel is connected to the upper fold of the second side panel, and the other upper return folding panel is connected to the upper fold of the fourth side panel.

[0014] One side of the upper wall panel is connected to the fold of the first side panel, and the other side of the upper wall panel is connected to the fold of the upper insert tongue. A first positioning structure is provided on the upper return fold plate, and a second positioning structure matching the first positioning structure is provided on the upper insert tongue. When the carton is in a closed state, the upper return fold plate is located below the upper wall panel, the upper insert tongue is provided between the third side panel and the upper return fold plate, and the first positioning structure is matched and connected with the second positioning structure.

[0015] The outer box does not need to use auxiliary materials such as tape and glue, and the first positioning structure and the second positioning structure cooperate with each other to achieve the closure and anti-theft and disassembly of the carton.

[0016] In addition, the carton according to the embodiment of the present application also has the following additional technical features:

[0017] According to some embodiments of the present application, the first positioning structure includes two lugs protruding vertically from the upper return folding plate, the two lugs are configured as anti-theft buckles, and the second positioning structure is a square hole, one square hole and one anti-theft buckle cooperate with each other to connect the upper return folding plate with the upper wall plate. The anti-theft buckle and the square hole in the carton cooperate with each other to achieve sealing and anti-theft disassembly.

[0018] According to some embodiments of the present application, the carton further comprises an upper auxiliary tongue and an upper auxiliary hole, wherein the upper auxiliary tongue is arranged on the upper side of the third side panel, and the upper auxiliary hole is arranged on the upper inserting tongue, and when the carton is in a closed state, the upper auxiliary tongue is inserted into the upper auxiliary hole. When the carton is closed, the upper auxiliary tongue is inserted into the upper auxiliary hole to realize the auxiliary anti-theft and disassembly function.

[0019] Some embodiments of the present application provide a method for folding a formed carton, comprising the following steps:

[0020] Four side wall panels are used to enclose and form a side wall of the carton, wherein the side wall has an upper opening and a lower opening;

[0021] An upper wall plate is connected to the upper side of one of the side wall plates, a side of the upper wall plate away from the side wall plate is inserted back to a side of two return folding plates located on the upper wall plate side away from the upper wall plate, and the upper wall plate is connected to each return folding plate located on the upper wall plate side through a pair of buckle components;

[0022] The lower wall plate is connected to the lower side of one of the side wall plates, and the side of the lower wall plate away from the side wall plate is inserted back into the side of the two folding plates located on the side of the lower wall plate away from the lower wall plate. The lower wall plate is connected to each folding plate located on the side of the lower wall plate through a pair of snap-fit ​​components.

[0023] The carton folded by this method achieves closure of the upper and lower openings of the side wall through the cooperation between the upper wall plate and the two folding plates, and the cooperation between the lower wall plate and the two folding plates, and cannot be opened again.

[0024] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1A schematic plan view of a paperboard according to the first embodiment of the present application;

[0027] Figure 2 A schematic diagram of the positions of the first positioning structure and the second positioning structure of the paperboard in the first aspect of the present application;

[0028] Figure 3 This is a schematic structural diagram of a connecting tongue and a side plug hole of a paperboard in an embodiment of the first aspect of the present application;

[0029] Figure 4 It is a partially enlarged schematic diagram of the upper right first positioning structure of the paperboard in the embodiment of the first aspect of the present application;

[0030] Figure 5 It is a partially enlarged schematic diagram of the upper right second positioning structure of the paperboard in the embodiment of the first aspect of the present application;

[0031] Figure 6 This is a schematic structural diagram of a carton according to an embodiment of the second aspect of the present application;

[0032] Figure 7 It is a partially enlarged schematic diagram of the upper right first positioning structure of the carton in the embodiment of the second aspect of the present application;

[0033] Figure 8 It is a partially enlarged schematic diagram of the upper right second positioning structure of the carton in the embodiment of the second aspect of the present application;

[0034] Fig. 9 This is a schematic structural diagram of the upper auxiliary tongue and upper auxiliary hole of a carton in an embodiment of the second aspect of the present application.

[0035] Icons: 100-cardboard; 10-upper wall plate; 11-upper plug tongue; 111-upper right second positioning structure; 1111-upper right clamping hole; 112-upper left second positioning structure; 113-upper auxiliary hole; 12-first folding line; 13-second folding line; 20-lower wall plate; 21-lower plug tongue; 211-lower right second positioning structure; 212-lower left second positioning structure; 30-first side plate; 31-side plug tongue; 40-second side plate; 50-third side plate; 51-upper support plate; 511-missing corner; 512-upper auxiliary tongue; 52-lower support plate; 60-fourth side plate; 61-connecting tongue; 611-side plug hole; 71-first upper return folding plate; 711-upper right first positioning structure; 7111-T-shaped knife line; 7112-third One square ear; 71121-first rounded corner; 7113-second square ear; 71131-second rounded corner; 7114-first anti-theft buckle; 712-easy folding line; 7121-tongue; 713-main body; 714-corner; 715-first lug; 7151-first guide arc surface; 716-second lug; 717-easy folding belt; 72-second upper return folding plate; 721-upper left first positioning structure; 73-first lower return folding plate; 731-lower right first positioning structure; 74-second lower return folding plate; 741-lower left first positioning structure; 80-easy-tear paper zipper; 81-opening paper knife; 82-paper zipper body; 900-carton; 910-inner cavity; 911-side wall; 912-upper side opening; 920-upper slow folding surface. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] In the description of this application, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0040] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] Please refer to Figure 1 and Figure 2 The cardboard 100 of the first embodiment of the present application includes an upper wall panel 10, a lower wall panel 20, a first side panel 30, a second side panel 40, a third side panel 50, and a fourth side panel 60. The upper and lower sides of the first side panel 30 are respectively connected to the upper wall panel 10 and the lower wall panel 20 by folds, and the right side of the first side panel 30 is sequentially connected to the second side panel 40, the third side panel 50, and the fourth side panel 60 by folds. The upper wall panel 10, the lower wall panel 20, the first side panel 30, the second side panel 40, the third side panel 50, and the fourth side panel 60 can be surrounded and formed as follows Figure 6 A carton 900 is shown having an interior cavity 910 .

[0042] A folded plate is extended from the upper and lower sides of the second side panel 40 and the fourth side panel 60, and a first positioning structure is provided on the edge of the folded plate close to the third side panel 50; an insert tongue is extended from the upper end of the upper wall panel 10 and the lower end of the lower wall panel 20, and each insert tongue is provided with two second positioning structures.

[0043] When the upper wall panel 10 is folded relative to the first side panel 30 and closes the inner cavity 910, a first positioning structure can cooperate with a second positioning structure to connect the upper wall panel 10 to the folded back panel.

[0044] When the lower wall panel 20 is folded relative to the first side panel 30 and closes the inner cavity 910, the first positioning structure can cooperate with a second positioning structure to connect the lower wall panel 20 to the folding plate.

[0045] In some embodiments of the present application, the material of the paperboard 100 is corrugated paperboard or cardboard. In other embodiments, the shape and structure of the paperboard 100 are also suitable for other materials used to fold into boxes, such as plastic sheets.

[0046] The paperboard 100 of the first embodiment of the present application can be formed by folding Figure 6 The carton 900 shown in the figure can achieve the closure and anti-theft and disassembly of the carton 900 through the cooperation between the first positioning structure and the second positioning structure without using auxiliary materials such as tape and glue.

[0047] The structures and relative positional relationships of the various parts of the paperboard 100 according to the first embodiment of the present application are described below.

[0048] Please refer to Figure 1 The cardboard 100 includes an upper wall panel 10, a lower wall panel 20, a first side panel 30, a second side panel 40, a third side panel 50, and a fourth side panel 60. The upper and lower sides of the first side panel 30 are respectively connected to the upper wall panel 10 and the lower wall panel 20 by folds, and the right side of the first side panel 30 is connected to the second side panel 40, the third side panel 50, and the fourth side panel 60 by folds in sequence. The upper wall panel 10, the lower wall panel 20, the first side panel 30, the second side panel 40, the third side panel 50, and the fourth side panel 60 can surround and form a hexahedral carton with an inner cavity.

[0049] In some embodiments of the present application, the crease connection means that there is a crease line between two adjacent wall panels, and the two adjacent wall panels can be folded along the crease line.

[0050] In some embodiments of the present application, the hexahedral carton formed by the upper wall panel 10, the lower wall panel 20, the first side panel 30, the second side panel 40, the third side panel 50, and the fourth side panel 60 can be Figure 6 The carton 900 shown in FIG. 1 has an inner cavity 910 for placing articles.

[0051] A side of the fourth side panel 60 away from the third side panel 50 has a connecting tongue 61 , and the connecting tongue 61 is used to connect with a side of the first side panel 30 away from the second side panel 40 to enclose and form a side wall 911 of the carton 900 .

[0052] As an example, see Figure 1 and Figure 2 The connecting tongue 61 of the fourth side panel 60 and the third side panel 50 is bonded to the side of the first side panel 30 away from the second side panel 40 by double-sided tape or glue.

[0053] As another example, see Figure 3The side of the connecting tongue 61 close to the fourth side panel 60 is provided with a side insertion hole 611, and the side of the first side panel 30 away from the second side panel 40 is extended with a side insertion tongue 31. When the first side panel 30, the second side panel 40, the third side panel 50, and the fourth side panel 60 are enclosed to form the side wall 911 of the carton 900, the side insertion tongue 31 is inserted into the side insertion hole 611, so that the fourth side panel 60 is connected to the first side panel 30, eliminating the step of gluing, and improving the efficiency of cartoning.

[0054] The first upper folded plate 71 extends from the upper side of the first side plate 30 and the second side plate 40, and the first lower folded plate 73 extends from the lower side; the second upper folded plate 72 extends from the upper side of the fourth side plate 60, and the second lower folded plate 74 extends from the lower side. In other words, the paperboard 100 includes four folded plates, namely the first upper folded plate 71, the second upper folded plate 72, the first lower folded plate 73, and the second lower folded plate 74.

[0055] The first upper return fold plate 71 and the second upper return fold plate 72 are both located on the upper side of the third side plate 50 and are symmetrically arranged relative to the third side plate 50. An upper right first positioning structure 711 is provided on the edge of the first upper return fold plate 71 close to the third side plate 50, and an upper left first positioning structure 721 is provided on the edge of the second upper return fold plate 72 close to the third side plate 50. The first upper return fold plate 71 and the second upper return fold plate 72 are used to cooperate with the upper wall plate 10.

[0056] The first lower return fold plate 73 and the second lower return fold plate 74 are both located on the lower side of the third side plate 50 and are symmetrically arranged relative to the third side plate 50. A lower right first positioning structure 731 is provided on the edge of the first lower return fold plate 73 close to the third side plate 50, and a lower left first positioning structure 741 is provided on the edge of the second lower return fold plate 74 close to the third side plate 50. The first lower return fold plate 73 and the second lower return fold plate 74 are used to cooperate with the lower wall plate 20.

[0057] In some embodiments of the present application, the upper right first positioning structure 711 , the upper left first positioning structure 721 , the lower right first positioning structure 731 , and the lower left first positioning structure 741 are the same structure.

[0058] As an example, see Figure 4 The upper right first positioning structure 711 includes a first square ear 7112 and a second square ear 7113, which are arranged opposite to each other and are respectively connected to the folds of the first upper folding plate 71. When the first square ear 7112 and the second square ear 7113 are folded relative to the first upper folding plate 71 and are perpendicular to the first upper folding plate 71, the first square ear 7112 and the second square ear 7113 form a Figure 7 The first anti-theft buckle 7114 shown in FIG. In actual processing, the first square ear 7112 and the second square ear 7113 can be cut and formed according to the T-shaped knife line 7111.

[0059] It is easy to understand that the upper left first positioning structure 721, the lower right first positioning structure 731, and the lower left first positioning structure 741 can also form an anti-theft buckle respectively after folding.

[0060] An upper tongue 11 extends from the upper end of the upper wall plate 10, and an upper right second positioning structure 111 and an upper left second positioning structure 112 are arranged on the upper tongue 11. A lower tongue 21 extends from the lower end of the lower wall plate 20, and a lower right second positioning structure 211 and a lower left second positioning structure 212 are arranged on the lower tongue 21.

[0061] In some embodiments of the present application, the upper right second positioning structure 111 , the upper left second positioning structure 112 , the lower right second positioning structure 211 , and the lower left second positioning structure 212 are the same structure.

[0062] As an example, see Figure 5 The upper right second positioning structure 111 is a square upper right clamping hole 1111.

[0063] It is easy to understand that the upper left second positioning structure 112, the lower right second positioning structure 211, and the lower left second positioning structure 212 can be square clamping holes.

[0064] When the upper wall panel 10 is folded relative to the first side panel 30 and closes the inner cavity 910, the upper right first positioning structure 711 can cooperate with the upper left second positioning structure 112 to connect the upper wall panel 10 to the first upper return folding plate 71; the upper left first positioning structure 721 can cooperate with the upper right second positioning structure 111 to connect the upper wall panel 10 to the second upper return folding plate 72.

[0065] In some embodiments of the present application, the connection between the upper wall panel 10 and the first upper return folding plate 71, and the connection between the upper wall panel 10 and the second upper return folding plate 72 is anti-theft and disassembly, that is, the process of folding the cardboard 100 to form the carton 900 and sealing it is irreversible.

[0066] It is easy to understand that in the process of folding the paperboard 100 to form the carton 900, the upper right first positioning structure 711 is folded to form the first anti-theft buckle 7114, the first anti-theft buckle 7114 is a protrusion located on the lower surface of the first upper return folding plate 71, and the upper right clamping hole 1111 is located on the upper plug tongue 11. In the process of folding the upper plug tongue 11 relative to the upper wall plate 10 and inserting it between the lower side of the first upper return folding plate 71 and the upper edge of the third side plate 50, the first anti-theft buckle 7114 can fall into the upper right clamping hole 1111. After folding, the upper plug tongue 11 is arranged parallel to the first upper return folding plate 71, and the upper plug tongue 11 is located between the lower side of the first upper return folding plate 71 and the upper edge of the third side plate 50, and the first anti-theft buckle 7114 is located in the upper right clamping hole 1111. At this time, if one tries to pull out the upper inserting tongue 11, the first upper return folding plate 71 and the third side plate 50 restrict the upper inserting tongue 11 and the first upper return folding plate 71 to be arranged parallel to each other, that is, restrict the angle between the upper inserting tongue 11 and the first upper return folding plate 71. At the same time, the first anti-theft buckle 7114 cooperates with the upper right clamping hole 1111 to restrict the upper inserting tongue 11 from deviating relative to the first upper return folding plate 71.

[0067] Since the angle and relative position between the upper inserting tongue 11 and the first upper return folding plate 71 are restricted, the upper inserting tongue 11 cannot be easily pulled out from between the first upper return folding plate 71 and the third side plate 50 for unpacking.

[0068] The upper right clamping hole 1111 and the first anti-theft buckle 7114 cooperate with each other to limit the angle between the upper inserting tongue 11 and the first upper return folding plate 71 and the position of the upper inserting tongue 11 relative to the first upper return folding plate 71, thereby preventing the upper inserting tongue 11 from being easily pulled out. If the upper inserting tongue 11 is forcibly pulled out, the structure of the first anti-theft buckle 7114 and the upper right clamping hole 1111 will be destroyed, and the user can also identify whether someone else has stolen and opened the carton 900 without permission.

[0069] The carton 900 folded from the cardboard 100 includes a plurality of pairs of first positioning structures and second positioning structures such as the upper right card hole 1111 and the first anti-theft buckle 7114, which can respectively limit the angles and relative positions of the upper insert tongue 11 and the second upper return folding plate 72, the lower insert tongue 21 and the first lower return folding plate 73, and the lower insert tongue 21 and the second lower return folding plate 74, to ensure that the upper insert tongue 11 and the lower insert tongue 21 cannot be easily pulled out, thereby making the closed carton 900 have the function of anti-theft.

[0070] In some embodiments of the present application, the edge of the first square ear 7112 of the upper right first positioning structure 711 is provided with a first rounded corner 71121, and the edge of the second square ear 7113 is provided with a second rounded corner 71131, and the first rounded corner 71121 and the second rounded corner 71131 have the same size and position, so that the first anti-theft buckle 7114 formed by folding the first square ear 7112 and the second square ear 7113 has a guide surface. It is easy to understand that the guide surface is located on the side that first contacts the upper right clamping hole 1111 during the sealing process, so that the first anti-theft buckle 7114 can easily slide into the upper right clamping hole 1111, making the sealing process of the carton 900 easier.

[0071] In some embodiments of this application, please refer to Figure 1 and Figure 2 The first upper return folding plate 71 is provided with an easy-folding line 712, which divides the first upper return folding plate 71 into a main body portion 713 and a corner portion 714 away from the first side plate 30, and the upper right first positioning structure 711 is provided at the corner portion 714. An easy-folding line 712 is provided at a corner of the first upper return folding plate 71 close to the upper right first positioning structure 711, and the easy-folding line 712 is arranged obliquely with the edge of the first upper return folding plate 71 close to the upper right first positioning structure 711. Preferably, the angle between the easy-folding line 712 and the edge of the first upper return folding plate 71 close to the upper right first positioning structure 711 is 45°.

[0072] During the process of folding the paperboard 100 to form the carton 900, in order to insert the upper inserting tongue 11 into the lower side of the first upper return folding plate 71 and make the first anti-theft buckle 7114 cooperate with the upper right clamping hole 1111, it is necessary to turn up the corner 714 of the first upper return folding plate 71 where the first anti-theft buckle 7114 is arranged. The easy folding line 712 is arranged at the corner, which not only clarifies the folding line of the corner relative to the first upper return folding plate 71, but also partially enhances the connection strength between the corner and the first upper return folding plate 71.

[0073] Furthermore, a tongue 7121 may be punched out at the center of the easy-folding line 712 , and the arrangement of the tongue 7121 may enhance the strength of the easy-folding line 712 .

[0074] In some embodiments of the present application, the upper wall plate 10 and the upper insert tongue 11 include a first folding line 12 and a second folding line 13, the first folding line 12 and the second folding line 13 are parallel to each other and parallel to the upper edge of the upper wall plate 10, and the spacing between the first folding line 12 and the second folding line 13 is equal to the thickness of the paperboard 100. Folding along the first folding line 12 and the second folding line 13 can form an upper slow folding surface 920. The upper slow folding surface 920 is used to provide a transition surface equivalent to the thickness of a paperboard 100 when the upper insert tongue 11 is folded relative to the upper wall plate 10, so that after the upper insert tongue 11 is inserted back to the lower side of the first upper return folding plate 71 and the second upper return folding plate 72, the upper insert tongue 11 is arranged parallel to the upper wall plate 10, and the upper insert tongue 11 is also arranged parallel to the first upper return folding plate 71 and the second upper return folding plate 72, so that the upper right first positioning structure 711 is closely matched with the upper right second positioning structure 111, and the upper left first positioning structure 721 is closely matched with the upper left second positioning structure 112.

[0075] Similarly, the lower wall plate 20 and the lower tongue 21 also include two parallel rows of folding lines, and the spacing between the two rows of folding lines is equal to the thickness of the paperboard 100. After the paperboard 100 is folded to form the carton 900, this arrangement can achieve a close fit between the lower right first positioning structure 731 and the lower right second positioning structure 211, and a close fit between the lower left first positioning structure 741 and the lower left second positioning structure 212.

[0076] In some embodiments of the present application, an upper support plate 51 extends from the upper side of the third side plate 50 , and a lower support plate 52 extends from the lower side thereof.

[0077] It is easy to understand that after the paperboard 100 is folded to form the carton 900, the upper support plate 51 is folded on the lower side of the upper wall plate 10. On the one hand, the upper support plate 51 can further protect the items inside the carton 900 from being damaged. On the other hand, the upper inserting tongue 11 is inserted between the lower surface of the first upper return folding plate 71 and the second upper return folding plate 72 and the upper surface of the upper support plate 51, so that the upper inserting tongue 11 can be kept parallel to the first upper return folding plate 71 and the second upper return folding plate 72, further strengthening the anti-theft and disassembly function of the carton 900.

[0078] In some embodiments of the present application, the upper support plate 51 and the lower support plate 52 each include at least one corner cutout 511 or a through hole.

[0079] As an example, one corner of the upper support plate 51 has a notched corner 511 .

[0080] As another example, a through hole may also be provided on the upper support plate 51. Preferably, the through hole may be located at the center of the upper support plate 51; in other embodiments, the position of the through hole on the upper support plate 51 is not limited.

[0081] The notch 511 or the through hole of the upper support plate 51 can be used as a hand grip to open the upper support plate 51 when unpacking, so as to facilitate the user to unpack and improve the user comfort of the carton 900 folded by the folding paperboard 100.

[0082] In some embodiments of the present application, the upper wall panel 10 includes an easy-tear paper zipper 80, which runs through the surface of the upper wall panel 10. After the paperboard 100 is folded to form a carton 900, since the carton 900 has the function of anti-theft and disassembly, the arrangement of the easy-tear paper zipper 80 enables the user to save time, effort and conveniently open the box to take out items.

[0083] Furthermore, the easy-tear paper zipper 80 also includes an opening paper knife 81 and a paper zipper body 82. The opening paper knife 81 is located at the edge of the upper wall plate 10 and is connected to the easy-tear paper zipper 80. The paper zipper body 82 is buried inside the easy-tear paper zipper 80 along the tearing direction of the easy-tear paper zipper 80 and is connected to the opening paper knife 81.

[0084] The paperboard 100 of the first embodiment of the present application is used to form a carton 900, and the method of folding and forming the carton 900 is as follows.

[0085] Forming a closed side wall 911: Enclosing the first side panel 30, the second side panel 40, the third side panel 50, and the fourth side panel 60, bonding the connecting tongue 61 of the fourth side panel 60 to the side of the first side panel 30 away from the second side panel 40, so as to form a closed side wall 911 of the carton 900, wherein the side wall 911 has an upper opening 912 and a lower opening (not shown in the figure);

[0086] Closing the lower opening: folding the lower support plate 52 relative to the third side plate 50 and covering the lower opening;

[0087] Fold the first lower folding plate 73 and the second lower folding plate 74 and place them at the lower part of the lower supporting plate 52;

[0088] The lower wall plate 20 is folded relative to the first side plate 30 and placed on the upper part of the first lower folding plate 73 and the second lower folding plate 74;

[0089] Fold the lower inserting tongue 21 and insert it back between the lower supporting plate 52 and the upper parts of the first lower return folding plate 73 and the second lower return folding plate 74;

[0090] Make the lower right first positioning structure 731 cooperate with the lower right second positioning structure 211, and make the lower left first positioning structure 741 cooperate with the lower left second positioning structure 212;

[0091] Closing the upper opening 912: folding the upper support plate 51 relative to the third side plate 50 and covering the upper opening 912;

[0092] The first upper folded plate 71 and the second upper folded plate 72 are folded and placed on the upper portion of the upper support plate 51; the upper wall plate 10 is folded relative to the first side plate 30 and placed on the upper portion of the first upper folded plate 71 and the second upper folded plate 72;

[0093] The upper inserting tongue 11 is folded and inserted back between the upper supporting plate 51 and the lower parts of the first upper return folding plate 71 and the second upper return folding plate 72;

[0094] The upper right first positioning structure 711 is matched with the upper right second positioning structure 111 , and the upper left first positioning structure 721 is matched with the upper left second positioning structure 112 .

[0095] The carton 900 folded by the cardboard 100 of the first embodiment of the present application is connected to the first side panel 30 by the connecting tongue 61, so that the side wall 911 is closed; through the cooperation of the lower wall panel 20 with the first lower return folding plate 73 and the second lower return folding plate 74, through the cooperation of the lower right first positioning structure 731 with the lower right second positioning structure 211, and the cooperation of the lower left first positioning structure 741 with the lower left second positioning structure 212, the lower opening is closed and cannot be opened again; through the cooperation of the upper right first positioning structure 711 with the upper right second positioning structure 111, and the upper left first positioning structure 721 with the upper left second positioning structure 112, the upper opening 912 is closed and cannot be opened again.

[0096] Please refer to Figure 6 The carton 900 of the second embodiment of the present application includes an upper wall panel 10, a lower wall panel 20, a first side panel 30, a second side panel 40, a third side panel 50, a fourth side panel 60, an upper insert tongue 11, a first upper return folding plate 71, and a second upper return folding plate 72. The upper wall panel 10 is arranged opposite to the lower wall panel 20, the first side panel 30 is arranged opposite to the third side panel 50, the second side panel 40 is arranged opposite to the fourth side panel 60, the first upper return folding plate 71 is connected to the upper fold of the second side panel 40, and the second upper return folding plate 72 is connected to the upper fold of the fourth side panel 60.

[0097] One side of the upper wall plate 10 is connected to the first side plate 30 by a fold, and the other side is connected to the upper plug tongue 11 by a fold. The first upper return folded plate 71 is provided with an upper right first positioning structure 711, and the upper plug tongue 11 is provided with an upper right second positioning structure 111, and the upper right second positioning structure 111 cooperates with the upper right first positioning structure 711. The second upper return folded plate 72 is provided with an upper left first positioning structure 721, and the upper plug tongue 11 is provided with an upper left second positioning structure 112, and the upper left second positioning structure 112 cooperates with the upper left first positioning structure 721.

[0098] When the carton 900 is in a closed state, the first upper return fold plate 71 and the second upper return fold plate 72 are located below the upper wall plate 10, the upper insert tongue 11 is arranged between the third side plate 50 and the first upper return fold plate 71 and the second upper return fold plate 72, the upper right second positioning structure 111 cooperates with the upper right first positioning structure 711, and the upper left second positioning structure 112 cooperates with the upper left first positioning structure 721.

[0099] The carton 900 of the second embodiment of the present application adopts two pairs of first positioning structures and second positioning structures, so that the upper wall panel 10 can close the carton 900 without the help of auxiliary materials such as tape and glue, and cannot be disassembled again.

[0100] In some embodiments of the present application, the carton 900 may be formed by folding the cardboard 100 of the first embodiment of the present application, or may be formed by folding other forms of cardboard.

[0101] In some embodiments of the present application, the upper right first positioning structure 711 and the upper left first positioning structure 721 are the same structure.

[0102] Taking the right first positioning structure 711 as an example, please refer to Figure 7 The upper right first positioning structure 711 includes a first lug 715 and a second lug 716. The first lug 715 and the second lug 716 protrude vertically from the first upper folding plate 71. The first lug 715 and the second lug 716 are configured as a first anti-theft buckle 7114.

[0103] In some embodiments of the present application, the upper right second positioning structure 111 and the upper left second positioning structure 112 are the same structure.

[0104] Taking the right second positioning structure 111 as an example, please refer to Figure 8 , the upper right second positioning structure 111 is a square hole.

[0105] The upper right second positioning structure 111 cooperates with the upper right first positioning structure 711 to connect the first upper return folded plate 71 with the upper plug tongue 11, thereby connecting the first upper return folded plate 71 with the upper wall plate 10. Similarly, the upper left second positioning structure 112 cooperates with the upper left first positioning structure 721 to connect the second upper return folded plate 72 with the upper plug tongue 11, thereby connecting the second upper return folded plate 72 with the upper wall plate 10.

[0106] In some embodiments of the present application, the first lug 715 and the second lug 716 have the same structure. Taking the first lug 715 as an example, the edge of the first lug 715 is provided with a first guide arc surface 7151, which facilitates the first anti-theft buckle 7114 to slide into the upper right clamping hole 1111.

[0107] It is easy to understand that the first upper return folding plate 71 and the second upper return folding plate 72 have the same structure. Taking the first upper return folding plate 71 as an example, the first upper return folding plate 71 is provided with an easy-folding belt 717, which divides the first upper return folding plate 71 into a main body portion 713 and a corner portion 714, and the upper right first positioning structure 711 is provided at the corner portion 714.

[0108] In some embodiments of the present application, the upper wall panel 10 includes an easy-tear paper zipper 80, and the easy-tear paper zipper 80 runs through the surface of the upper wall panel 10. Further, the easy-tear paper zipper 80 also includes an opening paper knife 81 and a paper zipper body 82, the opening paper knife 81 is located at the edge of the upper wall panel 10 and is connected to the easy-tear paper zipper 80, and the paper zipper body 82 is buried inside the easy-tear paper zipper 80 along the tearing direction of the easy-tear paper zipper 80 and is connected to the opening paper knife 81. When the carton 900 is closed, the opening paper knife 81 can be pulled, and the opening paper knife 81 drives the easy-tear paper zipper 80 to separate from the upper wall panel 10, thereby realizing unpacking.

[0109] Optionally, see Fig. 9 The carton 900 also includes an upper auxiliary tongue 512 and an upper auxiliary hole 113. The upper auxiliary tongue 512 is arranged on the upper side of the third side panel 50, and the upper auxiliary hole 113 is arranged on the upper inserting tongue 11. When the carton 900 is closed, the upper auxiliary tongue 512 is inserted into the upper auxiliary hole 113 to realize the auxiliary anti-theft and disassembly function.

[0110] Furthermore, the side of the upper auxiliary tongue 512 away from the third side plate 50 is larger than the side connected to the third side plate 50 , that is, it is constructed in the form of an inverted tongue, which can prevent the upper auxiliary tongue 512 from being pulled out of the upper auxiliary hole 113 .

[0111] The carton 900 of the second embodiment of the present application has the function of preventing theft and disassembly, and can be sealed only by folding without the aid of auxiliary materials such as tape and glue, which is green, environmentally friendly, safe and convenient.

[0112] It should be noted that, in the absence of conflict, the features in the embodiments of this application may be combined with each other.

[0113] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A paperboard, comprising an upper wall panel, a lower wall panel, a first side panel, a second side panel, a third side panel, and a fourth side panel, wherein the upper and lower sides of the first side panel are respectively connected to the upper wall panel and the lower wall panel by folds, and the right side of the first side panel is sequentially connected to the second side panel, the third side panel, and the fourth side panel by folds, and the upper wall panel, the lower wall panel, the first side panel, the second side panel, the third side panel, and the fourth side panel can be enclosed to form a hexahedral carton with an inner cavity, characterized in that: A folded plate is extended from the upper and lower sides of each of the second side plate and the fourth side plate, and a first positioning structure is provided at the edge of the folded plate close to the third side plate; Insertion tongues are respectively extended from the upper end of the upper wall plate and the lower end of the lower wall plate, and each of the insertion tongues is provided with two second positioning structures; When the upper wall plate is folded relative to the first side plate and closes the inner cavity, one of the first positioning structures can cooperate with one of the second positioning structures to connect the upper wall plate to the folded back plate; When the lower wall plate is folded relative to the first side plate and closes the inner cavity, one of the first positioning structures can cooperate with one of the second positioning structures to connect the lower wall plate to the folded back plate; The first positioning structure comprises two oppositely arranged square ears, the square ears are connected to the fold of the folding plate, when the square ears are folded relative to the folding plate and perpendicular to the folding plate, the two square ears form an anti-theft buckle, the second positioning structure is a square hole, one of the square holes can be matched with one of the anti-theft buckles to connect the folding plate with the upper wall plate or the lower wall plate; The edges of the square ears are provided with rounded corners; An inner support plate extends from each of the upper and lower sides of the third side plate, and the inner support plate includes at least one missing corner or through hole; The folding plate is provided with an easy folding line, which divides the folding plate into a main body and a corner away from the first side plate, and the first positioning structure is provided at the corner.

2. A carton, characterized in that: The carton is formed by folding the paperboard according to claim 1.

3. A carton, characterized in that: The carton comprises an upper wall panel, a lower wall panel, a first side panel, a second side panel, a third side panel, a fourth side panel, an upper tongue, and two upper folding panels, wherein the upper wall panel is opposite to the lower wall panel, the first side panel is opposite to the third side panel, the second side panel is opposite to the fourth side panel, one of the upper folding panels is connected to the upper fold of the second side panel, and the other upper folding panel is connected to the upper fold of the fourth side panel, characterized in that: One side of the upper wall plate is connected to the fold of the first side plate, and the other side of the upper wall plate is connected to the fold of the upper insert tongue. The upper return fold plate is provided with a first positioning structure, and the upper insert tongue is provided with a second positioning structure that cooperates with the first positioning structure. When the carton is in a closed state, the upper return fold plate is located below the upper wall plate, and the upper insert tongue is provided between the third side plate and the upper return fold plate. The first positioning structure is connected in cooperation with the second positioning structure. The first positioning structure includes two lugs vertically protruding from the upper return folding plate, the two lugs are configured as anti-theft buckles, and the second positioning structure is a square hole, one of the square holes cooperates with one of the anti-theft buckles to connect the upper return folding plate with the upper wall plate; The edge of the lug is provided with a guide arc surface, and the guide arc surface facilitates the anti-theft buckle to slide into the square hole.

4. The carton according to claim 3, characterized in that: The carton further comprises an upper auxiliary tongue and an upper auxiliary hole, wherein the upper auxiliary tongue is arranged on the upper side of the third side panel, and the upper auxiliary hole is arranged on the upper inserting tongue, and when the carton is in a closed state, the upper auxiliary tongue is inserted into the upper auxiliary hole.

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