Packaging box and paperboard structure

Abstract

The application discloses a packaging box and a paperboard structure. The packaging box comprises a box body, a cover body and a lock. The box body defines an accommodating cavity inside, and has an opening. The box body comprises a first side plate and a second side plate. The cover body comprises a first cover plate and a second cover plate. The first cover plate is rotatably connected to the edge of the first side plate close to the opening, so as to cover and / or open the opening. The second cover plate is connected to the first cover plate. The inner side of the second cover plate is provided with a groove. When the first cover plate covers the opening, the second cover plate is located on the outer side of the second side plate away from the accommodating cavity. The lock comprises a locking part and a connecting part. The connecting part is rotatably connected to the edge of the second side plate close to the opening. The locking part is provided on the outer side of the second side plate away from the accommodating cavity, and is rotatably connected to the edge of the connecting part away from the second side plate. The lock is configured to be at least partially accommodated in the groove when the first cover plate covers the opening, and the locking part is spaced apart from the second side plate.

Description

Technical Field

[0001] This application relates to the field of packaging boxes, and in particular to a packaging box and cardboard structure. Background Technology

[0002] There are many types of packaging boxes available, including top-and-bottom boxes, flip-top boxes, book boxes, drawer boxes, and tote boxes. To prevent accidental opening, some boxes have child-proof features such as disposable tear strips or plastic clips. Boxes with disposable tear strips are mostly for one-time use and not easily reused. Boxes with plastic clips are not environmentally friendly and are also more expensive. Utility Model Content

[0003] This application provides a packaging box and cardboard structure that helps reduce the risk of the packaging box being accidentally opened and facilitates the reuse of the packaging box.

[0004] The packaging box provided in this application includes a box body, a lid, and a latch. The box body defines an internal receiving cavity, and has an opening on one side along a first direction. The box body includes a first side plate and a second side plate spaced apart along a second direction, perpendicular to the first direction. The lid includes a first cover plate and a second cover plate. The first cover plate is rotatably connected to the edge of the first side plate near the opening to close and / or open the opening. The second cover plate is connected to the first cover plate, and its inner side has a groove. When the first cover plate closes the opening, the second cover plate is located on the outer side of the second side plate away from the receiving cavity. The latch includes a locking portion and a connecting portion. The connecting portion is rotatably connected to the edge of the second side plate near the opening. The locking portion is located on the outer side of the second side plate away from the receiving cavity and is rotatably connected to the edge of the connecting portion away from the second side plate. The latch is configured to at least partially receive within the groove when the first cover plate closes the opening, and the locking portion is spaced apart from the second side plate.

[0005] In some embodiments, the connecting portion is connected to the second side plate via a first fold line, and the locking portion is connected to the connecting portion via a second fold line, wherein the first fold line and the second fold line are parallel.

[0006] In some embodiments, the vertical distance between the first and second broken lines is less than or equal to the depth of the groove.

[0007] In some embodiments, the second side plate has a recess on the side near the opening along the first direction, and the connecting portion is connected to the bottom wall of the recess.

[0008] In some embodiments, the size of the recess along the first direction is greater than or equal to the vertical distance between the first and second broken lines.

[0009] In some embodiments, the sum of the size of the recess along the first direction and the size of the locking portion along its own length direction is less than or equal to the size of the second cover plate along its own width direction, and the length direction of the locking portion and the width direction of the second cover plate are both perpendicular to the first fold line.

[0010] In some embodiments, the second cover plate includes an outer layer plate and an inner layer plate stacked together. When the first cover plate closes the opening, the inner layer plate is located on the side of the outer layer plate closer to the second side plate. Along the thickness direction of the second cover plate, a groove penetrates the inner layer plate, and the outer layer plate covers the groove.

[0011] In some embodiments, there are multiple inner layer plates, and the grooves penetrate multiple inner layer plates.

[0012] In some embodiments, the packaging box is formed by bending cardboard, and the cardboard is a one-piece molded structure.

[0013] Secondly, this application provides a cardboard structure, comprising: a first surface and a second surface opposite to the first surface; a box body region, which is bent toward the first surface to form a box body, the box body region including a first box body region and a second box body region spaced apart along a fourth direction, the first box body region forming a first side panel of the box body, the second box body region forming a second side panel of the box body, the first side panel and the second side panel being disposed opposite to each other; a lid region, which is bent toward the first surface to form a lid, the lid region including a first lid region and a second lid region, the first lid region being connected to the first box body region and the second lid region along a fifth direction. Between, the fourth direction is perpendicular to the fifth direction, the first cover area is used to form the first cover plate, the second cover area is bent toward the first surface to form the second cover plate, the second cover area is provided with a notch, the notch is used to form at least part of the groove of the second side plate; and the locking area includes a first locking sub-area and a second locking sub-area, the first locking sub-area is rotatably connected to one side of the second box area along the fifth direction, the first locking sub-area is bent toward the second surface to form the connecting part of the latch, and the second locking sub-area is rotatably connected to the side of the first locking sub-area away from the second box area, and is bent toward the second surface to form the locking part of the latch.

[0014] According to the packaging box provided in this application embodiment, the locking part is located on the outer side of the second side plate, and the groove is located on the inner side of the second cover plate. When the packaging box is closed, the locking part and the groove can cooperate with each other to restrict the opening of the cover, thereby realizing the self-locking function of the packaging box. When the cover is subjected to force and has a tendency to flip open, the cover can be fully opened by rotating the locking part and the connecting part. This helps to reduce the risk of the cover being accidentally opened or opened by children, and helps to expand the application range of the packaging box. For example, the packaging box can be used to store items or medicines that may affect the safety of children.

[0015] After the latch returns to its initial position from its rotated position, when the lid is closed again, at least a portion of the locking part can be accommodated in the groove again, enabling multiple opening and closing of the packaging box. The latch and groove engagement mechanism of this application does not damage the packaging box structure, facilitating multiple reuses and reducing waste. When the lid is closed, the locking part and groove produce a crisp, clear sound, allowing users to determine whether the packaging box has achieved self-locking, making it convenient to use.

[0016] The latches and grooves are both hidden inside the packaging box, which helps improve the appearance of the box and reduces the risk of the lid opening due to accidental contact with the latches. Attached Figure Description

[0017] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the structure of a packaging box with a self-locking function in the closed state according to some embodiments of this application; Figure 2 yes Figure 1 A schematic diagram of the packaging box from another angle; Figure 3 yes Figure 1 The diagram shown is a structural illustration of the packaging box in its open state. Figure 4 yes Figure 1 The diagram shows the structure of the packaging box with the latch in a flipped-over state; Figure 5 This is a schematic diagram of the first side of the cardboard structure provided in some embodiments of this application; Figure 6 yes Figure 5 A schematic diagram of the second side of the cardboard structure shown.

[0019] The reference numerals in the accompanying drawings for the specific embodiments are as follows: 1. Packaging box; 2. Cardboard structure; 10. Box body; 10a. Receiving cavity; 10b. Opening; 11. First side plate; 12. Second side plate; 121. Recess; 13. Third side plate; 14. Fourth side plate; 20. Cover body; 21. First cover plate; 22. Second cover plate; 221. Groove; 222. Outer layer plate; 223. Inner layer plate; 23. Third cover plate; 24. Extension; 30. Lock; 31. Locking part; 32. Connecting part; 41. First broken line; 42. Second broken line; 3. Box area, 301. First box area, 302. Second box area, 303. Third box area, 304. Fourth box area, 305. Fifth box area, 306. Adhesive area; 4. Cover area, 401. First cover area, 402. Second cover area, 4021. First sub-area, 4022. Second sub-area, 4023. Third sub-area, 403. Gap, 404. Third cover area, 4041. First section, 4042. Second section, 405. Extension area; 5. Locking area, 501. First locking sub-area, 502. Second locking sub-area; M, fourth direction; N, fifth direction; S1, first face; S2, second face; X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0021] The terms "first," "second," "third," etc., used in the specification, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments.

[0022] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

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

[0024] In the embodiments of this application, "parallel" includes not only the case of absolute parallelism, but also the case of approximate parallelism as commonly understood in engineering; similarly, "perpendicular" also includes not only the case of absolute perpendicularity, but also the case of approximate perpendicularity as commonly understood in engineering. For example, if the angle between two directions is 85°-90°, the two directions can be considered perpendicular; if the angle between two directions is 0°-10°, the two directions can be considered parallel.

[0025] This application provides a packaging box and a cardboard structure, the cardboard structure being bent to form the packaging box. The packaging box of this application embodiment is described below with reference to the accompanying drawings.

[0026] Reference Figures 1 to 4 The packaging box 1 provided in this application embodiment includes a box body 10, a lid 20, and a latch 30. The box body 10 defines an internal receiving cavity 10a. The box body 10 has an opening 10b on one side along a first direction X. The box body 10 includes a first side plate 11 and a second side plate 12 spaced apart along a second direction Y, which is perpendicular to the first direction X. The lid 20 includes a first cover plate 21 and a second cover plate 22. The first cover plate 21 is rotatably connected to the edge of the first side plate 11 near the opening 10b to close and / or open the opening 10b. The second cover plate 22 is connected to the first cover plate 21. The inner side of the second cover plate 22 has a groove 221. When the first cover plate 21 closes the opening 10b, the second cover plate 22 is located on the outer side of the second side plate 12 away from the receiving cavity 10a. The latch 30 includes a locking portion 31 and a connecting portion 32. The connecting portion 32 is rotatably connected to the edge of the second side plate 12 near the opening 10b. The locking portion 31 is located on the outer side of the second side plate 12 away from the receiving cavity 10a and is rotatably connected to the edge of the connecting portion 32 away from the second side plate 12. The latch 30 is configured to be at least partially received in the groove 221 when the first cover plate 21 covers the opening 10b, and the locking portion 31 is spaced apart from the second side plate 12.

[0027] The receiving cavity 10a is used to receive the packaged items. The opening 10b is connected to the receiving cavity 10a, and the packaged items are placed into the receiving cavity 10a through the opening 10b.

[0028] The box body 10 also includes a third side plate 13 and a fourth side plate 14 spaced apart along the third direction Z. A first side plate 11 connects the third side plate 13 and the fourth side plate 14, and a second side plate 12 connects the third side plate 13 and the fourth side plate 14.

[0029] The box body 10 also includes a bottom plate (not shown in the figure), which is arranged opposite to the opening 10b along the first direction X. The first side plate 11, the second side plate 12, the third side plate 13 and the fourth side plate 14 are all connected to the bottom plate by fold lines.

[0030] The first cover plate 21 is rotatably connected to the first side plate 11 via a fold line. The first cover plate 21 can close the opening 10b to seal the receiving cavity 10a; the first cover plate 21 can also open the opening 10b to facilitate the taking and placing of items through the opening 10b.

[0031] Optionally, the second cover plate 22 is connected to the side of the first cover plate 21 away from the first side plate 11 and is perpendicular to the first cover plate 21.

[0032] The cover 20 also includes two third cover plates 23, which are respectively connected to the two ends of the first cover plate 21 along the third direction Z, and the two third cover plates 23 are respectively connected to the two ends of the second cover plate 22 along the third direction Z.

[0033] The cover 20 also includes an extension 24, which is connected to the second cover plate 22 by a fold line and extends to the inner side of the first cover plate 21. The extension 24 and the first cover plate 21 are stacked together. The cover 20 is formed by bending cardboard, and the extension 24 helps the cover 20 maintain its bent shape.

[0034] Optionally, the first cover plate 21, the second cover plate 22, and the third cover plate 23 are perpendicular to each other.

[0035] Optionally, the first cover plate 21 and the second cover plate 22 are rectangular, and the third cover plate 23 is trapezoidal.

[0036] The locking part 31 is located on the outside of the second side plate 12. When the first cover plate 21 covers the opening 10b, the second cover plate 22 is located on the outside of the second side plate 12, and the groove 221 is located on the inside of the second cover plate 22. The groove 221 and the locking part 31 are in corresponding positions, which is conducive to the locking part 31 locking into the groove 221.

[0037] When the first cover plate 21 closes the opening 10b, the latch 30 has an initial position. In this initial position, the locking part 31 is suspended, and the connecting part 32 is perpendicular to the first direction X. The locking part 31 can be entirely accommodated in the groove 221, or only a portion of the locking part 31 can be accommodated in the groove 221. The connecting part 32 can be partially accommodated in the groove 221, or it can be located outside the groove 221. Along the first direction X, the locking part 31 accommodated in the groove 221 and the second cover plate 22 mutually restrict and interfere with each other, which helps to prevent relative movement between the cover 20 and the box 10, reducing the risk of the cover 20 being accidentally opened or opened by a child.

[0038] When the cover 20 is opened by force, the portion of the second cover plate 22 that forms the groove 221 abuts against the locking part 31 along the first direction X, causing the locking part 31 to rotate relative to the connecting part 32 and causing the connecting part 32 to rotate relative to the second side plate 12. The locking part 31 is displaced along the second direction Y toward the inside of the box 10 and moves out of the groove 221. The limiting and interference effects between the second cover plate 22 and the latch 30 are released, and the cover 20 can be fully opened.

[0039] The packaging box 1 provided in this embodiment has a locking part 31 located on the outer side of the second side plate 12 and a groove 221 located on the inner side of the second cover plate 22. When the packaging box 1 is closed, the locking part 31 and the groove 221 can cooperate with each other to restrict the opening of the cover 20, thus realizing the self-locking function of the packaging box 1. When the cover 20 is subjected to force and has a tendency to flip open, the cover 20 can be fully opened by rotating the locking part 31 and the connecting part 32. This helps to reduce the risk of the cover 20 being opened unintentionally or by children, and expands the application range of the packaging box 1. For example, the packaging box 1 can be used to store items or medicines that may affect the safety of children.

[0040] After the latch 30 returns to its initial position from its rotated position, when the lid 20 is closed again, at least a portion of the locking part 31 can be accommodated in the groove 221 again, enabling multiple opening and closing of the packaging box 1. The engagement of the latch 30 and the groove 221 in this application does not damage the structure of the packaging box 1, which is beneficial for the multiple recycling of the packaging box 1 and reduces waste. When the lid 20 is closed, the engagement of the locking part 31 and the groove 221 produces a crisp and obvious sound, which can be used to determine whether the packaging box 1 has achieved self-locking, making it convenient to use.

[0041] Both the latch 30 and the groove 221 are hidden inside the packaging box 1, which helps to improve the appearance of the packaging box 1 and reduces the risk of the lid 20 being opened due to accidental contact with the latch 30.

[0042] In some embodiments, the connecting portion 32 is connected to the second side plate 12 via a first fold line 41, and the locking portion 31 is connected to the connecting portion 32 via a second fold line 42, wherein the first fold line 41 and the second fold line 42 are parallel.

[0043] The latch 30 can be formed by bending the connecting part 32 along the first fold line 41 and bending the locking part 31 along the second fold line 42. The second side plate 12, the connecting part 32 and the locking part 31 are integrally formed, which helps to simplify the structure and forming process of the packaging box 1.

[0044] The first fold line 41 and the second fold line 42 are arranged in parallel, which helps to reduce interference between the locking part 31 and the connecting part 32 and the second side plate 12 during rotation, and improves the smoothness of opening and closing of the packaging box 1.

[0045] In some embodiments, the vertical distance between the first fold line 41 and the second fold line 42 is less than or equal to the depth of the groove 221. This reduces interference between the locking part 31 and the bottom of the groove 221 when the cover 20 closes the opening 10b, lowering the risk of the locking part 31 being deformed or rotated due to compression, thereby improving the stability and reliability of the packaging box 1 in the closed state. Furthermore, it also reduces the gap between the second cover plate 22 and the second side plate 12 when the cover 20 closes the opening 10b, improving the appearance of the packaging box 1 in the closed state and facilitating the miniaturization of the packaging box 1.

[0046] The depth of groove 221 refers to the dimension through which groove 221 penetrates the second cover plate 22.

[0047] The vertical distance between the first broken line 41 and the second broken line 42 is the width of the connecting part 32.

[0048] In some embodiments, the second side plate 12 has a recess 121 on the side near the opening 10b along the first direction X, and the connecting portion 32 is connected to the bottom wall of the recess 121.

[0049] Optionally, the recess 121 is located at the middle position of the second side plate 12 along the third direction Z. In this way, the latch 30 is located at the middle position of the box body 10 along the third direction Z, and can lock the box body 10 and the cover 20 at the middle position, which helps to improve the stability of the packaging box 1 in the closed state.

[0050] The connecting part 32 is connected to the bottom wall of the recess 121. When the connecting part 32 rotates relative to the second side plate 12 and the locking part 31 rotates relative to the connecting part 32, the recess 121 can provide a receiving cavity or clearance space for the connecting part 32 and the locking part 31, which helps to reduce the interference between the latch 30 and the cover 20 and improve the smoothness of opening the packaging box 1.

[0051] In some embodiments, the size of the recess 121 along the first direction X is greater than or equal to the vertical distance between the first fold line 41 and the second fold line 42.

[0052] The vertical distance between the first fold line 41 and the second fold line 42 is the width of the connecting portion 32. When the connecting portion 32 is rotated to be parallel to the first direction X, the latch 30 is in its highest position. Since the vertical distance between the first fold line 41 and the second fold line 42 is less than or equal to the depth of the recess 121, the latch 30 will not extend beyond the recess 121 when it is in its highest position, which helps to reduce the risk of interference between the latch 30 and the cover 20 during rotation.

[0053] In some embodiments, the sum of the size of the recess 121 recessed along the first direction X and the size of the locking portion 31 along its own length direction is less than or equal to the size of the second cover plate 22 along its own width direction, and the length direction of the locking portion 31 and the width direction of the second cover plate 22 are both perpendicular to the first fold line 41.

[0054] When the cover 20 closes the opening 10b, the latch 30 is in its initial position. The sum of the dimension of the recess 121 along the first direction X and the dimension of the locking part 31 along its own length direction represents the lowest position of the locking part 31 relative to the opening 10b. The dimension of the second cover plate 22 along its own width direction represents the lowest position of the second cover plate 22 relative to the opening 10b. The second cover plate 22 is larger in its own width direction, and the lowest position of the second cover plate 22 is lower than the lowest position of the locking part 31. The second cover plate 22 can completely cover the locking part 31, which helps to reduce the risk of the cover 20 opening due to accidental contact with the locking part 31, and also helps to improve the appearance of the packaging box 1.

[0055] In some embodiments, the second cover plate 22 includes an outer layer plate 222 and an inner layer plate 223 stacked together. When the first cover plate 21 covers the opening 10b, the inner layer plate 223 is located on the side of the outer layer plate 222 closer to the second side plate 12. Along the thickness direction of the second cover plate 22, a groove 221 penetrates the inner layer plate 223, and the outer layer plate 222 covers the groove 221.

[0056] There can be one or more outer layer plates 222. There can be one or more inner layer plates 223.

[0057] The inner layer 223 is located inside the outer layer 222. The groove 221 passes through the inner layer 223, and the outer layer 222 covers the groove 221 from the outside. When the cover 20 is closed to the opening 10b, the groove 221 will not be exposed to the outside of the packaging box 1. This helps to reduce the risk of accidentally touching the latch 30 and causing the cover 20 to open, and also helps to improve the appearance of the packaging box 1.

[0058] In some embodiments, there are multiple inner layer plates 223, and the groove 221 penetrates through multiple inner layer plates 223. This helps to increase the depth of the groove 221, increase the volume of the portion of the latch 30 that can be accommodated in the groove 221, increase the mating area between the locking part 31 and the second cover plate 22, and improve the stability of the packaging box 1 in the closed state.

[0059] In some embodiments, the packaging box 1 is formed by bending cardboard, and the cardboard is a one-piece molded structure.

[0060] Packaging box 1 is a one-piece molded cardboard structure. The structure of packaging box 1 is simple to form and can be produced automatically. Packaging box 1 can be flattened and boxed for shipment, which helps to save transportation costs. Moreover, the cardboard material is safe and environmentally friendly.

[0061] According to the second aspect of this application, referring to Figure 5 and Figure 6 This application also provides a paperboard structure 2, which includes a first surface S1 and a second surface S2 opposite to the first surface S1. The first surface S1 and the second surface S2 are opposite to each other along the thickness direction of the paperboard structure 2.

[0062] The cardboard structure 2 includes a box body area 3, a lid area 4, and a locking area 5. The box body area 3 is bent toward the first surface S1 to form a box body 10. The box body area 3 includes a first box body area 301 and a second box body area 302 spaced apart along the fourth direction M. The first box body area 301 is used to form the first side plate 11 of the box body 10, and the second box body area 302 is used to form the second side plate 12 of the box body 10. The first side plate 11 and the second side plate 12 are arranged opposite to each other. The cover area 4 is bent toward the first surface S1 to form the cover 20. The cover area 4 includes a first cover area 401 and a second cover area 402. Along the fifth direction N, the first cover area 401 is connected between the first box area 301 and the second cover area 402. The fourth direction M is perpendicular to the fifth direction N. The first cover area 401 is used to form a first cover plate 21. The second cover area 402 is bent toward the first surface S1 to form a second cover plate 22. The second cover area 402 has a notch 403, which is used to form at least a portion of the groove 221 of the second cover plate 22. The locking area 5 is connected to one side of the second box area 302 along the fifth direction N. The locking area 5 is bent toward the second surface S2 of the box area 302 and fixed to the second box area 302 to form a latch 30. The locking area 5 includes a first locking sub-area 501 and a second locking sub-area 502. The first locking sub-area 501 is rotatably connected to one side of the second housing area 302 along the fifth direction N. The first locking sub-area 501 is bent toward the second surface S2 to form the connecting part 32 of the latch 30. The second locking sub-area 502 is rotatably connected to the side of the first locking sub-area 501 away from the second housing area 302, and is bent toward the second surface S2 to form the locking part 31 of the latch 30.

[0063] Box area 3 also includes a third box area 303, a fourth box area 304, and multiple fifth box areas 305. Along the fourth direction M, the third box area 303 connects between the first box area 301 and the second box area 302, and the second box area 302 connects between the third box area 303 and the fourth box area 304. The third box area 303 is bent towards the first surface S1 to form a third side panel 13, and the fourth box area 304 is bent towards the first surface S1 to form a fourth side panel 14. Multiple fifth box areas 305 are respectively connected to the side of the first box area 301, the second box area 302, the third box area 303, and the fourth box area 304 along the fifth direction N away from the cover area 4, and are bent towards the first surface S1 to form the bottom plate of the box 10.

[0064] The box area 3 also includes an adhesive area 306. Along the fourth direction M, the adhesive area 306 is connected to the side of the fourth box area 304 opposite to the second box area 302. The adhesive area 306 is used to bend toward the first surface S1 and is bonded to the first box area 301. Only the first surface S1 of the adhesive area 306 is provided with adhesive material, and the second surface S2 of the adhesive area 306 is not provided with adhesive material.

[0065] In some embodiments, the second cover region 402 includes a first sub-region 4021, a second sub-region 4022, and two third sub-regions 4023. Along the fifth direction N, the first sub-region 4021 connects the first cover region 401 and the second sub-region 4022, and is bent toward the first surface S1 to form the outer layer 222 of the second cover plate 22. The two third sub-regions 4023 are located on opposite sides of the first sub-region 4021 along the fourth direction M. Along the fourth direction M, the sum of the dimensions of the two third sub-regions 4023 is less than the dimension of the first sub-region 4021. The two third sub-regions 4023 are bent toward the first surface S1 of the first sub-region 4021 to overlap with the first sub-region 4021, forming an inner layer 223 of the second cover plate 22. The second sub-region 4022 is bent towards the first surface S1 of the two third sub-regions 4023 until it overlaps with the third sub-regions 4023, forming an inner layer 223 of the second cover plate 22. A notch 403 is provided in the second sub-region 4022. After the two third sub-regions 4023 are bent, they are spaced apart along the fourth direction M. After the second sub-region 4022 is bent, the notch 403 corresponds to the gap between the two third sub-regions 4023, and the notch 403 and the gap form a groove 221.

[0066] After the second cover area 402 is bent, the two third sub-areas 4023 are located between the first sub-area 4021 and the second sub-area 4022. The two third sub-areas 4023 are restricted by the second sub-area 4022, which helps to maintain the shape after bending and prevent them from falling apart.

[0067] The cover area 4 also includes two third cover areas 404. Each third cover area 404 includes a first partition 4041 and a second partition 4042. The first partitions 4041 of the two third cover areas 404 are respectively connected to both sides of the first cover area 401 along the fourth direction M, and are respectively connected to two third sub-areas 4023. The second partitions 4042 of the third cover areas 404 are connected to the side of the first partition 4041 away from the first cover area 401. The first partitions 4041 of the two third cover areas 404 are bent toward the first surface S1 of the first cover area 401, and the second partitions 4042 of the two third cover areas 404 are bent toward the first surface S1 to overlap with the two first partitions 4041, forming two third cover plates 23.

[0068] The cover area 4 also includes two extension areas 405. Both extension areas 405 are connected to the side of the second sub-area 4022 away from the first sub-area 4021 and are spaced apart along the fourth direction M. The two extension areas 405 are folded toward the first surface S1 to overlap with the first cover area 401 to form an extension 24.

[0069] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A package, characterized in that include: A box body having an internal cavity, the box body having an opening on one side along a first direction, the box body including a first side plate and a second side plate spaced apart along a second direction, the second direction being perpendicular to the first direction; A cover body includes a first cover plate and a second cover plate. The first cover plate is rotatably connected to the edge of a first side plate near the opening to close and / or open the opening. The second cover plate is connected to the first cover plate. The inner side of the second cover plate has a groove. When the first cover plate closes the opening, the second cover plate is located on the outer side of the second side plate away from the receiving cavity. The latch includes a locking portion and a connecting portion, the connecting portion being rotatably connected to the edge of the second side plate near the opening, the locking portion being located on the outer side of the second side plate away from the receiving cavity and being rotatably connected to the edge of the connecting portion away from the second side plate, the latch being configured to be at least partially received in the groove when the first cover plate closes the opening, and the locking portion being spaced apart from the second side plate.

2. The packaging box according to claim 1, characterized in that, The connecting part is connected to the second side plate by a first fold line, and the locking part is connected to the connecting part by a second fold line. The first fold line and the second fold line are parallel.

3. The packaging box according to claim 2, characterized in that, The vertical distance between the first fold line and the second fold line is less than or equal to the depth of the groove.

4. The packaging box according to claim 2, characterized in that, The second side plate has a recess on the side near the opening along the first direction, and the connecting part is connected to the bottom wall of the recess.

5. The packaging box according to claim 4, characterized in that, The size of the recess along the first direction is greater than or equal to the vertical distance between the first broken line and the second broken line.

6. The packaging box according to claim 4, characterized in that, The sum of the recessed dimension along the first direction and the locking dimension along its own length direction is less than or equal to the dimension of the second cover plate along its own width direction. The length direction of the locking portion and the width direction of the second cover plate are both perpendicular to the first fold line.

7. The packaging box according to claim 1, characterized in that, The second cover plate includes an outer layer plate and an inner layer plate stacked together. When the first cover plate closes the opening, the inner layer plate is located on the side of the outer layer plate closer to the second side plate. Along the thickness direction of the second cover plate, the groove penetrates the inner layer plate, and the outer layer plate covers the groove.

8. The packaging box according to claim 7, characterized in that, There are multiple inner layer plates, and the grooves penetrate through multiple inner layer plates.

9. The packaging box according to claim 1, characterized in that, The packaging box is made of cardboard that has been bent into one piece.

10. A paperboard structure characterized by, include: The first side, and the second side opposite to the first side; The box area is bent toward the first surface to form a box. The box area includes a first box area and a second box area that are spaced apart along the fourth direction. The first box area is used to form a first side plate of the box, and the second box area is used to form a second side plate of the box. The first side plate and the second side plate are arranged opposite to each other. A cover area, wherein the cover area is bent toward the first surface to form a cover, the cover area includes a first cover area and a second cover area, the first cover area being connected between the first box area and the second cover area along a fifth direction, the fourth direction being perpendicular to the fifth direction, the first cover area being used to form a first cover plate, the second cover area being bent toward the first surface to form a second cover plate, the second cover area having a notch, the notch being used to form at least a portion of the groove of the second side plate; and The locking area includes a first locking sub-area and a second locking sub-area. The first locking sub-area is rotatably connected to one side of the second housing area along the fifth direction. The first locking sub-area is bent toward the second surface to form a connecting part of the latch. The second locking sub-area is rotatably connected to the side of the first locking sub-area away from the second housing area and is bent toward the second surface to form the locking part of the latch.

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