Packaging box and packaging board

Abstract

A packaging box (100) and a packaging board (200). The packaging box (100) comprises a top sheet (10) and a bottom sheet (11), wherein the top sheet (10) and the bottom sheet (11) enclose a placement space in which a plurality of mounting pieces (12) are provided; each mounting piece (12) is provided with a placement part for placing an article; the mounting pieces (12) are rotatably connected in sequence and each have an unfolded state and a folded state; when the mounting pieces (12) are placed in the placement space, the mounting pieces (12) are in the folded state; and when the mounting pieces (12) are out of the placement space, the mounting pieces (12) are in the unfolded state. When the plurality of mounting pieces (12) are in the folded state, it is possible to effectively reduce the volume of the placement space occupied, and when the plurality of mounting pieces (12) are rotatably connected in sequence, the mounting pieces (12) can be unfolded such that the article placed in the inner layer can be taken out, thereby improving the space utilization rate and convenience of use of the packaging box (100). The packaging board (200) can be folded and assembled to obtain the packaging box (100). The top sheet (10), the bottom sheet (11) and the mounting pieces (12) are integrally formed on the packaging board (200), which reduces the assembly steps of the packaging box (100), thereby improving the manufacturing efficiency of the packaging box.

Description

Packaging boxes and packaging boards Technical Field

[0001] The present application belongs to the technical field of packaging devices, and in particular relates to a packaging box and a packaging board. Background Art

[0002] A common packaging box has a storage space in its body, which is sealed by installing a cover to accommodate items. However, the items in the storage space are placed directly in the storage space without any fixing devices or separate space. Items placed in the storage space may collide with each other, causing damage to fragile items.

[0003] In the related art, fixed plates or partitions are added to separate separate placement spaces, but the assembled packaging box cannot be disassembled. The assembled packaging box occupies too large a volume and is difficult to carry and transport. In addition, during the production process, the packaging box includes multiple sheets, and the multiple sheets are spliced ​​and combined to form the packaging box, which has cumbersome steps and complicated processes. Technical issues

[0004] The technical problem to be solved by the present application is to provide a packaging box and a packaging board, wherein the packaging board can be folded into a packaging box, thereby improving the assembly efficiency of the packaging box and reducing the manufacturing process steps of the packaging box, thereby accelerating the manufacturing efficiency of the packaging box. Technical Solutions

[0005] A first aspect of the present application provides a packaging box, comprising a top sheet and a bottom sheet, wherein the top sheet and the bottom sheet enclose a placement space, wherein a plurality of mounting pieces are provided in the placement space, each of the mounting pieces being provided with a placement position for placing items, and each of the mounting pieces being rotatably connected in sequence and having an unfolded state and a folded state. When each of the mounting pieces is placed in the placement space, each of the mounting pieces is in the folded state, and when each of the mounting pieces is detached from the placement space, each of the mounting pieces is in the unfolded state.

[0006] The second aspect of the present application provides a packaging board, comprising the top sheet and the bottom sheet that are rotatably connected, the connecting portion, and a plurality of mounting pieces that are rotatably connected in sequence, one of the plurality of mounting pieces being rotatably connected to the top sheet or the bottom sheet, the packaging board having a flat state and an assembled state, when the packaging board is in the assembled state, the packaging board is assembled into a packaging box as described above, the top sheet and the bottom sheet enclose the placement space, and each mounting piece is folded and placed in the placement space, and when the packaging board is in the flat state, the top sheet, the bottom sheet, and each mounting piece are unfolded into an integrally formed sheet. Beneficial effects

[0007] In this solution, multiple mounting plates in a folded state can effectively reduce the volume of the placement space occupied, and multiple mounting plates are rotated and connected in sequence, which makes it easy to unfold the mounting plates to take out items placed on the inner layer, thereby improving the space utilization and ease of use of the packaging box. The packaging box can be obtained by folding and assembling the packaging board. The top plate body, bottom plate body and mounting plates on the packaging board are integrally formed, thereby reducing the assembly steps of the packaging box and improving the manufacturing efficiency of the packaging box. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] FIG1 is a schematic top view of a packaging box in an embodiment of the present application in a flat state as a packaging plate;

[0009] FIG2 is a schematic top view of the packaging box in FIG1 in an assembled state;

[0010] FIG3 is a schematic diagram of the overall structure of the packaging box in FIG1 .

[0011] 100. Packaging box; 10. Top sheet; 101. First portion; 1011. Protrusion; 102. Second portion; 1021. Notch; 11. Bottom sheet; 12. Mounting piece; 121. Groove; 122. Placement position; 13. Connecting portion; 14. Hanging portion; 141. Hanging hole; 200. Packaging board. Modes for Carrying Out the Invention

[0012] The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making any creative efforts shall fall within the scope of protection of the present application.

[0013] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do 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.

[0014] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0015] Please refer to Figures 1 to 3. The present application proposes a packaging box 100, comprising a top sheet 10 and a bottom sheet 11 that are rotatably connected and a plurality of mounting pieces 12 that are rotatably connected in sequence. Each mounting piece 12 is provided with a placement position 122 for placing items. One of the plurality of mounting pieces 12 is rotatably connected to the top sheet 10 or the bottom sheet 11. The packaging box 100 has an unfolded state and a folded state. When the packaging box 100 is in the folded state, the top sheet 10 and the bottom sheet 11 are enclosed to form a placement space, and each mounting piece 12 is folded and placed in the placement space. When the packaging box 100 is in the unfolded state, the top sheet 10, the bottom sheet 11 and each mounting piece 12 are unfolded to form a packaging board 200.

[0016] The top sheet 10 and the bottom sheet 11 can be supported by a material with a relatively low density, such as resin, plastic, paper, etc., so that the packaging box 100 has a large volume but a relatively light weight, making it easy for users to pick up and carry. Preferably, in this embodiment, the top sheet 10 and the bottom sheet 11 of the packaging box 100 are made of paper. While maintaining a relatively light weight, the paper is also recyclable. For example, the use of paper with waterproof and oil-proof properties such as kraft paper further enhances the durability of the packaging box 100. The kraft paper can also be reused, meeting environmental protection requirements.

[0017] In this embodiment, the packaging box 100 can be used to store fragile items such as screen protectors and lens films. To prevent breakage of these fragile items due to collisions between items within the storage space during transport, a mounting plate 12 is provided within the storage space of the packaging box 100. Positioning locations 122 on the mounting plate 12 are used to store screen protectors and lens films. The mounting plates 12 can be spaced apart or in contact with each other along the thickness direction. For smaller lens films, a single mounting plate 12 can be provided with multiple positions 122 of the same size as the film. This allows multiple lens films to be placed on a single mounting plate 12, improving the space utilization within the packaging box 100.

[0018] The placement position 122 set on the mounting piece 12 can be a through hole or a blind hole. When the placement position 122 is a through hole, the through hole is set to pass through along the thickness direction of the mounting piece 12, and the object is clamped on the hole wall of the through hole, thereby realizing the fixation of the object by the placement position 122. When the placement position 122 is a blind hole, the blind hole is not passed through along the thickness direction of the mounting piece 12, and the blind hole includes a bottom surface, which is used to receive the object, and also realizes the installation and fixation of the object by the placement position 122.

[0019] Furthermore, in order to improve the space utilization efficiency of the placement space in the packaging box 100, multiple mounting tabs 12 arranged in the placement space are connected and folded in sequence. By folding and compressing the occupied volume of the mounting tabs 12, more mounting tabs 12 can be installed in the placement space, and the number of items that can be installed is also increased. At the same time, the adjacent mounting tabs 12 placed in a stacked manner can further limit the position of the items, thereby enhancing the stability of the packaging box 100 to the items. Multiple mounting tabs 12 can be combined into an integral sheet, and the material of the integral sheet can be paper, plastic, etc. The integral sheet is provided with multiple equally spaced folds, and the spaced folds separate the integral sheet into multiple mounting tabs 12. The integral sheet is bent at the folds, that is, the multiple mounting tabs 12 are folded, and the folded multiple mounting tabs 12 can be placed in the placement space formed by the bottom sheet body 11 and the top sheet body 10. When it is necessary to take out the items, the folded multiple mounting tabs 12 are unfolded along the folds to form a packaging board 200. In other embodiments, the material of the mounting piece 12 may be metal, paper, plastic, resin, etc., and the rotational connection of the plurality of mounting pieces 12 may be in the form of hinges, hinges, etc.

[0020] In other embodiments, the mounting sheet 12 can be detachably connected to the bottom sheet 11 and the top sheet 10 , for example, it can be detachably connected to the inner wall of the packaging box 100 in layers, and items can be installed in layers on the multi-layer mounting sheet 12 .

[0021] In this embodiment, please refer to Figure 1. The present application also proposes a packaging board 200, including a top sheet body 10 and a bottom sheet body 11 that are rotatably connected, a connecting portion 13 and a plurality of mounting pieces 12 that are rotatably connected in sequence, one of the plurality of mounting pieces 12 is rotatably connected to the top sheet body 10 or the bottom sheet body 11, and the packaging board 200 has a flat state and an assembled state. When the packaging board 200 is in the assembled state, the packaging board 200 is assembled into the packaging box 100 as described above, the top sheet body 10 and the bottom sheet body 11 are enclosed to form a placement space, and each mounting piece 12 is folded and placed in the placement space. When the packaging board 200 is in the flat state, the top sheet body 10, the bottom sheet body 11 and each mounting piece 12 are unfolded into an integrally formed sheet body.

[0022] In the packaging board 200, the plurality of mounting pieces 12 remain connected to the bottom sheet 11 or the top sheet 10, making it easy to fold and retract them into the storage space after taking out the items, effectively avoiding the problem of not being able to return the mounting pieces 12 to their original positions in time after taking them out. If the bottom sheet 11 and the top sheet 10 are also connected by a single-side rotation, the plurality of mounting pieces 12, the bottom sheet 11, and the top sheet 10 can be integrated to form the packaging board 200.

[0023] Furthermore, the connection between each mounting piece 12 and the connection of the mounting piece 12 connected to the top sheet body 10 or the bottom sheet body 11 are all provided with a fold for rotation. The fold separates the bottom sheet body 11, the top sheet body 10 and the plurality of mounting pieces 12. The plurality of mounting pieces 12 can be folded and stacked with the bottom sheet body 11 first, and then the top sheet body 10 is flipped along the fold to the folded plurality of mounting pieces 12 and form a placement space with the bottom sheet body 11. The packaging board 200 is formed from an integrated sheet material through processes such as cutting and perforating to form the bottom sheet body 11, the top sheet body 10 and the plurality of mounting pieces 12, which is conducive to standardized manufacturing and simplifies the manufacturing process and process steps. The whole sheet material is processed into raw materials to obtain the foldable packaging box 100 sheet body, thereby improving the manufacturing and processing efficiency of the packaging box 100.

[0024] In one embodiment of the present application, a plurality of mounting pieces 12 are divided into a first piece group and a second piece group, wherein a mounting piece 12 at one end of the first piece group is rotatably connected to the top piece 10, and a mounting piece 12 at one end of the second piece group is rotatably connected to the bottom piece 11. Specifically, the first piece group and the second piece group are staggered in placement positions 122 within the placement space. For example, the first piece group can be rotatably connected to the top piece 10 and is located at the upper portion of the packaging box 100, while the second piece group can be rotatably connected to the bottom piece 11 and is located at the lower portion of the packaging box 100. The size relationship between the upper and lower portions of the packaging box 100 can be set according to actual conditions. The first piece group and the second piece group can be in contact or independent of each other. With such a setting, for smaller items that need to be placed separately, a larger number of items can be placed, which is more convenient.

[0025] In another embodiment, one end of the first sheet group away from the top sheet body 10 and one end of the second sheet group away from the bottom sheet body 11 are connected in the placement space. That is, the first sheet group on the upper layer of the packaging box 100 is connected to the second sheet group on the lower layer of the packaging box 100. The provision of multiple mounting plates in different directions is to facilitate the removal of items placed inside the packaging box 100. Users can take the required items from different positions of the first sheet group or the second sheet group without having to fully unfold the packaging box 100, which is conducive to improving the ease of use of the packaging box 100. At the same time, two magnetic members connected by magnetic attraction are provided on the two surfaces where the first sheet group and the second sheet group are connected. The two magnetic members are used to fix the relative positions of the first sheet group and the second sheet group, effectively preventing the first sheet group and the second sheet group from shaking in the placement space and affecting the stability of the items.

[0026] Specifically, the folding directions of two adjacent mounting pieces 12 are opposite. In this arrangement, the rotational structures of the two mounting pieces 12 on the adjacent sides of a mounting piece 12 are located at both ends of the mounting piece 12. The rotational structures can be folds, hinges, or hinges. The presence of the rotational structures at both ends of a mounting piece 12 facilitates the rotation of the mounting pieces 12 connected to the two ends of the mounting piece 12. During the folding process, one mounting piece 12 only contacts the adjacent mounting piece 12, and does not need to wrap around other mounting pieces 12 to fold, thereby reducing the difficulty of folding and speeding up the assembly efficiency of the packaging box 100. The stacked positions of the multiple mounting pieces 12 are fixed and are sequentially placed from the bottom sheet 11 to the top sheet 10. In other embodiments, for mounting pieces 12 with thinner thickness, the folding directions of the two adjacent mounting pieces 12 can also be the same. The folding difficulty of thinner mounting pieces 12 is reduced, and the thickness difference between the same and opposite folding directions is smaller. In particular, for mounting pieces 12 made of flexible fabric, due to their poor support, folding in the same folding direction facilitates the fixation of multiple mounting pieces 12 within the placement space.

[0027] In this embodiment, referring to FIG2 , a connecting portion 13 is provided between the same-direction ends of the top sheet 10 and the bottom sheet 11. The top sheet 10 and the bottom sheet 11 are rotatably connected via the connecting portion 13. When the top sheet 10 and the bottom sheet 11 are rotated to overlap with each other, the top sheet 10, the bottom sheet 11, and the connecting portion 13 enclose a placement space. The connecting portion 13 has a certain width, and the width of the connecting portion 13 is consistent with the height of the placement space enclosed by the bottom sheet 11 and the top sheet 10. The width of the connecting portion 13 is slightly greater than the thickness of the plurality of mounting pieces 12 in the folded state. The connection between the connecting part 13 and the top sheet 10 and the bottom sheet 11 is provided with a fold for rotation, and the connection method can also be in the form of a hinge, a hinge, etc. Preferably, the connecting part 13, the top sheet 10 and the bottom sheet 11 of this embodiment are integrated and can be made of paper material. The rotation connection form of the connecting part 13 and the top sheet 10 and the bottom sheet 11 can be to set a fold and flip the top sheet 10 to form a placement space.

[0028] The connecting portion 13 can be provided at one end or both ends of the bottom sheet 11, and can be provided according to actual needs and is not limited here. When the connecting portion 13 is provided at opposite ends of the bottom sheet 11, one connecting portion 13 is rotatably connected to the bottom sheet 11 and the top sheet 10, and the other connecting portion 13 is fixedly connected to one of the bottom sheet 11 or the top sheet 10 and detachably connected to the other. The detachable connection can be in the form of a buckle, a plug-in, etc., which is convenient for fixing and also convenient for opening the packaging box 100. When the connecting portion 13 is provided at one end of the bottom sheet 11, the bottom sheet 11 and the top sheet 10 away from the connecting portion 13 can be directly connected.

[0029] In one embodiment, multiple rotatably connected mounting plates 12 can connect the bottom plate body 11 and the top plate body 10 at two ends of different axes from the connecting portion 13, that is, the multiple mounting plates 12 are divided into a group provided on the bottom plate body 11 and a group provided on the top plate body 10. After the two groups of mounting plates 12 are folded, they are provided in the placement space and can be connected.

[0030] Regarding the sealing method of the packaging box 100, it can be set as follows: two connecting parts 13 are respectively provided at opposite ends of the bottom sheet 11, and the top sheet 10 includes a first part 101 and a second part 102 that are detachably connected. The first part 101 and the second part 102 are rotatably connected to the two ends of the bottom sheet 11 through the corresponding connecting parts 13. The detachable connection between the first part 101 and the second part 102 can be in the form of plug-in connection, bonding, snap connection, etc.

[0031] Specifically, a protrusion 1011 is provided at one end of the first portion 101 away from the connecting portion 13, and a notch 1021 is provided at one end of the second portion 102 away from the connecting portion 13, corresponding to the protrusion 1011, for plugging and fitting. The protrusion 1011 and the notch 1021 are plugged and fitted, and the protrusion 1011 and the notch 1021 can be separated, thereby separating the first portion 101 and the second portion 102. The packaging box 100 is open upwards for easy access to items. When the protrusion 1011 and the notch 1021 are plugged and fixed, the first portion 101 and the second portion 102 are connected, sealing the upward opening of the packaging box 100. Sealing tape can also be added to seal the seam between the protrusion 1011 and the notch 1021 to further improve the sealing performance of the packaging box 100. When it is necessary to take out items, the sealing tape can be removed. It is understandable that the first portion 101 can be provided with a notch 1021, and the second portion 102 can be provided with a protrusion 1011, but this is not limited here.

[0032] In order to improve the connection strength between the first part 101 and the second part 102 of the top plate body 10, the first part 101 is provided with a plurality of protrusions 1011 arranged at intervals, and the width of the end of the protrusion 1011 away from the first part 101 is greater than the width of the end connected to the first part 101, and the second part 102 is provided with a plurality of notches 1021 at intervals corresponding to the shape of the protrusion 1011. The protrusion 1011 is configured to have a width that gradually increases along the protruding direction, and the shape of the notch 1021 is the same as that of the protrusion 1011. After the end with a larger width is clamped with the corresponding notch 1021 and fixed, if the first part 101 and the second part 102 are driven to separate by external stress, the notch 1021 with a smaller width is clamped with the protrusion 1011 with a larger width, effectively preventing the first part 101 and the second part 102 from separating along the plane direction of the top sheet 10. If the protrusion 1011 and the notch 1021 are separated along the thickness direction of the top sheet 10, the first part 101 and the second part 102 can be separated. This arrangement enhances the stability and strength of the packaging box 100.

[0033] In this embodiment, each mounting piece 12 is provided with a groove 121 on its end surface near the connecting portion 13 within the placement space, and the connecting portion 13 engages with the groove 121. The groove 121 is used to avoid the connecting portion 13, which facilitates the rotation of the first portion 101 and the second portion 102 of the top plate 10, thereby facilitating the assembly and disassembly of the packaging box 100.

[0034] To further facilitate assembly of the packaging plate 200 into the packaging box 100, the peripheries of the bottom sheet 11, the top sheet 10, and each mounting piece 12 are chamfered. The bottom sheet 11, the top sheet 10, and each mounting piece 12 can be rectangular, with the four corners of the rectangle chamfered. A gap is provided between the rounded corners to facilitate rotation of the mounting piece 12, the first portion 101, and the second portion 102 of the top sheet 10, thereby accelerating assembly efficiency of the packaging box 100.

[0035] In one embodiment, the top sheet 10 and the bottom sheet 11 are covered and are relatively convexly provided with a clamping portion. When the clamping portion of the top sheet 10 and the clamping portion of the bottom sheet 11 are engaged, the top sheet 10, the bottom sheet 11 and the clamping portion enclose a space for placement. The top sheet 10 and the bottom sheet 11 can be covered by the clamping portion. The area of ​​one clamping portion is slightly smaller than the other clamping portion. When the top sheet 10 and the bottom sheet 11 are covered, the two clamping portions connect and are fixed. In other embodiments, the clamping portion can be separately located on the top sheet 10 or the bottom sheet 11. Corresponding bottom sheet 11 or the top sheet 10 is provided with a clamping groove coordinated with the clamping portion. The clamping portion is inserted in the clamping groove to realize the assembling of the bottom sheet 11 and the top sheet 10.

[0036] Furthermore, the protruding clamping portions of the top sheet 10 and the bottom sheet 11 are annular. In another embodiment, the protruding clamping portions of the top sheet 10 and the bottom sheet 11 are both located at opposite ends in the axial direction. Both configurations can achieve the effect of clamping and fixing. If the clamping portion is annular, the placement space enclosed by the packaging box 100 is a closed space, and each mounting piece 12 is folded and placed therein; if the clamping portion is located at opposite ends in the axial direction of the top sheet 10 and the bottom sheet 11, the placement space enclosed by the packaging box 100 is an open space, and one of the mounting pieces 12 can be connected to the top sheet 10 or the bottom sheet 11. When the packaging box 100 is unfolded, it becomes a packaging board 200.

[0037] Referring to Figure 3 , to facilitate carrying and hanging of the packaging box 100, a pivotally connected hanging portion 14 is provided on the outer periphery of the packaging box 100. Hanging portion 14 is provided with a hanging hole 141. Hanging hole 141 allows the packaging box 100 to be hung on a hook or shelf for easy placement. In situations where hanging is not required, hanging portion 14 can be attached to the outer periphery of the packaging box 100. Hanging portion 14 can be provided at any location on the bottom sheet 11, top sheet 10, or connecting portion 13. Preferably, in this embodiment, hanging portion 14 is provided on connecting portion 13.

[0038] Regarding the packaging board 200, in this embodiment, a slit is formed at the connection portion 13 of the packaging board 200. The portion of the packaging board 200 enclosed by the slit serves as the hanging portion 14, which is penetrated by a hanging hole 141. This arrangement allows the packaging board 200 to be formed during the manufacturing stage, eliminating the need for separate assembly, shortening the process and improving manufacturing efficiency.

[0039] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A packaging box, characterized in that: The utility model comprises a top sheet body and a bottom sheet body, wherein the top sheet body and the bottom sheet body are enclosed to form a placement space, wherein a plurality of mounting sheets are arranged in the placement space, and each mounting sheet is provided with a placement position for placing items, and each mounting sheet is rotatably connected in sequence and has an unfolded state and a folded state. When each mounting sheet is placed in the placement space, each mounting sheet is in the folded state, and when each mounting sheet is separated from the placement space, each mounting sheet is in the unfolded state.

2. The packaging box according to claim 1, characterized in that: The folding directions of two adjacent mounting pieces are opposite.

3. The packaging box according to claim 1, characterized in that: A connecting portion is provided between the same-direction ends of the top sheet body and the bottom sheet body, and the top sheet body and the bottom sheet body are rotatably connected via the connecting portion. When the top sheet body and the bottom sheet body are rotated to overlap with each other through projection, the top sheet body, the bottom sheet body and the connecting portion enclose the placement space.

4. The packaging box according to claim 3, characterized in that: A fold for rotation is provided at the connection between the connecting portion and the top sheet body and the bottom sheet body.

5. The packaging box according to claim 3, characterized in that: Each of the mounting pieces is located in the placement space and has an end surface close to the connecting portion concavely provided with a groove, and the connecting portion is snap-fitted with the groove.

6. The packaging box according to claim 3, characterized in that: The bottom sheet body is provided with two connecting parts at opposite ends, and the top sheet body includes a first part and a second part which are detachably connected, and the first part and the second part are rotatably connected to the two ends of the bottom sheet body through the connecting parts which correspond in position.

7. The packaging box according to claim 5, characterized in that: A protrusion is protrudingly provided at one end of the first part away from the connecting part, and a notch corresponding to the protrusion is provided at one end of the second part away from the connecting part.

8. The packaging box according to claim 6, characterized in that: The first part is provided with a plurality of the protrusions arranged at intervals, the width of one end of the protrusion away from the first part is greater than the width of one end connected to the first part, and the second part is provided with a plurality of the notches at intervals corresponding to the shape of the protrusions.

9. The packaging box according to claim 1, characterized in that: The top sheet body and the bottom sheet body are overlapped and both are provided with relatively protruding snap-on parts. When the snap-on parts of the top sheet body are snap-fitted with the snap-on parts of the bottom sheet body, the top sheet body, the bottom sheet body and the snap-on parts enclose the placement space.

10. The packaging box according to claim 9, characterized in that: The clamping parts protruding from the top sheet body and the bottom sheet body are annular.

11. The packaging box according to claim 9, characterized in that: The protruding clamping parts of the top sheet body and the bottom sheet body are both arranged at two opposite ends along the axial direction.

12. The packaging box according to claim 1, characterized in that: A rotatably connected hanging part is provided on the outer peripheral side of the packaging box, and a hanging hole is opened on the hanging part.

13. A packaging board, characterized in that: It includes the top sheet body and the bottom sheet body that are rotatably connected, the connecting part and a plurality of mounting pieces that are rotatably connected in sequence, one of the plurality of mounting pieces is rotatably connected to the top sheet body or the bottom sheet body, the packaging board has a flat state and an assembled state, when the packaging board is in the assembled state, the packaging board is assembled into the packaging box, the top sheet body and the bottom sheet body are enclosed to form the placement space, each mounting piece is folded and placed in the placement space, when the packaging board is in the flat state, the top sheet body, the bottom sheet body and each mounting piece are unfolded into an integrally formed sheet body.

14. The packaging board according to claim 13, characterized in that The connection between the installation pieces and the connection between the installation pieces connected to the top piece body or the bottom piece body are all provided with folds for rotation.

15. The packaging board according to claim 13, characterized in that The plurality of mounting pieces are divided into a first piece group and a second piece group. A mounting piece at one end of the first piece group is rotatably connected to the top piece body, and a mounting piece at one end of the second piece group is rotatably connected to the bottom piece body.

16. The packaging board according to claim 15, characterized in that The first sheet group and the second sheet group are staggered in placement positions within the placement space.

17. The packaging board according to claim 15, characterized in that One end of the first sheet group away from the top sheet body and one end of the second sheet group away from the bottom sheet body are connected in the placement space.

18. The packaging board according to claim 15, characterized in that Two magnetic parts connected by magnetic attraction are arranged on two surfaces where the first sheet group and the second sheet group are connected.

19. The packaging board according to claim 13, characterized in that The packaging board is provided with a through slit at the connection portion, and a portion of the packaging board enclosed by the through slit is the hanging portion, and the hanging portion is penetrated by the hanging hole.

20. The packaging board according to claim 13, characterized in that The peripheries of the bottom sheet body, the top sheet body and each of the mounting sheets are all chamfered.

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