Cosmetic packaging box

Abstract

To provide a cosmetic packaging box in which the number of packaging box members and the number of molding dies are reduced, the structural cost is reduced, and packaging box assembling work can be simplified.SOLUTION: A cosmetic packaging box comprises: a box body 1 including an accommodating cavity 11 having an opening facing upward, a mounting slot 12 provided in a ring shape on a circumferential outside of the accommodating cavity, and an annular partition 13 formed between the accommodating cavity and the mounting slot; a core box 2 including a connecting ring body 21 and a mounting ring body 22 that come into contact with each other in a vertical direction, a restricted table 23 formed between the connecting ring body and the mounting ring body, and an inner ring body 24 provided in the restricted table; and a box lid 3, where the box body, the core box and the box lid are respectively, integrally molded integral members, and the mounting ring body is inserted in alignment with the mounting slot and is fixed to the mounting slot.SELECTED DRAWING: Figure 2

Description

CROSS-REFERENCE TO RELATED ART APPLICATIONS

[0001] This application claims priority to a Chinese patent application, application number CN202310903904.4, filed on July 21, 2023. [Technical field]

[0002] The present invention relates to the field of cosmetic packaging, specifically to a cosmetic packaging box. [Background technology]

[0003] In the prior art cosmetic packaging boxes, especially packaging boxes filled with air cushion powder, such as the air cushion powder box disclosed in China Patent Publication No. CN107752322A, the box cover has a first part made of a material that does not easily leave volatile residues and a second part made of an elastic material, and the second part realizes the sealing between the box cover and the box body, and such a box cover requires secondary injection molding during production, which places high requirements on the injection molding equipment, is difficult to control the precision, and is expensive to produce. In such packaging boxes, the box cover and the box body are usually connected together to be rotatable using a metal rotating shaft, which makes the assembly process of the box cover and the box body complicated, and after the cosmetics are used up, the box cover, the box body, and the metal rotating shaft must be disassembled to be classified and collected, which increases the disassembly process. In addition, an outer box base and an outer box cover are usually required to be provided on the outside of the box cover and the box body, which increases packaging and manufacturing costs. Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention aims to provide a new cosmetic packaging box to solve one or more problems in the prior art. [Means for solving the problem]

[0005] The technical solution used in the present invention: a cosmetic packaging box, the packaging box comprising: A box body having an accommodation cavity with an opening facing upward and an attachment slot provided in a ring shape on the circumferential outer side of the accommodation cavity, and an annular partition plate is provided between the accommodation cavity and the attachment slot; a core box including a connecting ring body and an attachment ring body that are in contact with each other in a vertical direction, the connecting ring body having an outer diameter larger than that of the attachment ring body, a limiting table extending radially inwardly and convexly between the connecting ring body and the attachment ring body, the limiting table including an inner ring body extending upwardly and a ring groove formed between the inner ring body and the connecting ring body; a box lid having a lid body and a cap ring extending downwardly from the lid body; Here, the box body, the core box and the box lid are each a one-piece integral member molded in one piece, the mounting ring body is inserted into the mounting slot and fixed to the mounting slot, the limiting table is located above the annular partition plate and partially blocks the mouth of the accommodating cavity, a first sealing structure is provided between the inner peripheral surface of the mounting ring body and the outer peripheral surface of the annular partition plate, one end of the lid body is rotatably connected to the connecting ring body, the cap ring can be inserted into the inner ring body in one piece, and a second sealing structure is provided between the outer peripheral surface of the cap ring and the inner peripheral surface of the inner ring body.

[0006] Preferably, the lid body is provided with a first connection portion extending convexly outward, and the connection ring body is provided with a second connection portion extending convexly upward, one of the first connection portion and the second connection portion has a rotating shaft, and the first connection portion and the second connection portion are connected to be rotatable around the axis of the rotating shaft.

[0007] Further, the first connection portion includes two lugs extending convexly outward from the outer circumference of the lid body, the rotating shaft being connected between the two lugs, and the second connection portion includes a hanging ear that can be hooked onto the rotating shaft and rotated around the axis of the rotating shaft.

[0008] Furthermore, the hanging ear has a U-shape with an opening facing downward, the rotating shaft and the two lugs are integrally formed, and the rotating shaft and the outer peripheral portion of the lid body are spaced apart to form an insertion opening between the two into which the outer portion of the hanging ear can be inserted.

[0009] Preferably, the outer peripheral portion of the connecting ring body has an undercut groove extending in the vertical direction, the hanging ear is disposed in the undercut groove, and the outer peripheral portion of the hanging ear is abutted against the outer peripheral wall of the mounting slot.

[0010] Preferably, the mounting ring body is fitted to the circumferential outside of the annular partition plate, and the first sealing structure is provided as one set or as a plurality of sets spaced apart in the vertical direction.

[0011] Furthermore, the first sealing structure has a protrusion and a groove which are mated to each other and both have an annular shape, the protrusion elastically abuts against the groove, the protrusion extends convexly outward from the outer peripheral wall of the annular partition plate and the groove extends concavely outward from the inner peripheral surface of the mounting ring body, or the protrusion extends convexly inward from the inner peripheral surface of the mounting ring body and the groove extends concavely inward from the outer peripheral wall of the annular partition plate.

[0012] In some embodiments, the first sealing structure has two sets spaced apart in the vertical direction, and each of the outer peripheral wall of the annular partition plate and the inner peripheral surface of the mounting ring body has one set of the protrusions and grooves.

[0013] Preferably, the connecting ring body comprises a first ring body and a second ring body arranged in a ring shape circumferentially outside the first ring body, and an annular opening groove is formed between the first ring body and the second ring body, with an opening facing downward, and the outer peripheral wall of the second ring body elastically abuts against the outer peripheral wall of the mounting slot.

[0014] Preferably, the outer peripheral surface of the cap ring has a tapered surface in which the outer diameter gradually decreases from top to bottom, the second sealing structure has a convex ring provided on the outer peripheral surface of the cap ring and extending radially outward, the inner peripheral surface of the inner ring body is a cylindrical surface, and when the cap ring covers the core box, the convex ring abuts against the inner peripheral surface of the inner ring body.

[0015] Furthermore, the cosmetic packaging box further includes an outer lid, which is movably connected to the box body, and when the outer lid and the box body are mated to each other, a box cavity that is sealed and capable of accommodating the box lid can be formed.

[0016] In some embodiments, the outer lid is rotatably connected to the box body, and the positions at which the outer lid and the box body are rotatably connected and the positions at which the box lid and the core box are rotatably connected are spaced apart in the circumferential direction. Effect of the Invention

[0017] By applying the above technical solution, the present invention has the following advantages over the prior art: The cosmetic packaging box of the present invention provides a box body, a core box and a box cover, which are each integrally molded, and the packaging box is assembled and formed by fitting the structures of each component together, and the box body and the core box are then fitted together to store cosmetics, thereby reducing the number of components of the packaging box and the number of molding dies is correspondingly reduced, reducing the structural cost and simplifying the assembly work of the packaging box. [Brief description of the drawings]

[0018] [Figure 1] 1 is a schematic perspective view of a cosmetic packaging box according to a specific embodiment of the present invention; FIG. [Diagram 2] FIG. 2 is a schematic exploded view of the structure of the cosmetic packaging box of FIG. 1. [Diagram 3] FIG. 2 is a schematic vertical cross-sectional view of FIG. [Figure 4] FIG. 2 is a schematic perspective view of the cosmetic packaging box of FIG. 1 with the outer lid removed. [Diagram 5] FIG. 5 is a schematic vertical cross-sectional view of FIG. [Figure 6] FIG. 6 is an enlarged schematic view of part A in FIG. 5. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the technical solutions of the present invention will be described in detail with reference to the drawings and preferred embodiments of the present invention, in order to make the advantages and features of the present invention easy to understand for those skilled in the art.

[0020] In order to easily explain the relative positional relationship of each structure within the cosmetic packaging box, the up-down direction is defined based on the direction from which a user observes the cosmetic packaging box when using it, and this up-down direction is the up-down direction that an observer sees when observing Figures 3 and 5.

[0021] Referring to the cosmetic packaging box shown in Figures 1 and 2, the cosmetic packaging box includes a box body 1, a core box 2, and a box lid 3, in which the box body 1 has a storage cavity 11 with an opening facing upward and a mounting slot 12 provided in a ring shape on the circumferential outer side of the storage cavity 11, and an annular partition plate 13 is provided between the storage cavity 11 and the mounting slot 22, the storage cavity 11 is used to store cosmetics, the core box 2 includes a connecting ring body 21 and a mounting ring body 22 that are in contact with each other in the vertical direction, and both the connecting ring body 21 and the mounting ring body 22 are annular. The outer diameter of the connecting ring body 21 is larger than the outer diameter of the mounting ring body 22, and a limiting table 23 extending radially inwardly is provided between the connecting ring body 21 and the mounting ring body 22. The limiting table 23 has an inner ring body 24 extending upwardly and convexly, and the inner ring body 24 is located circumferentially inside the connecting ring body 21, and a ring groove 25 is formed between the inner ring body 24 and the connecting ring body 21. The box lid 3 has a lid main body 31 and a cap ring 32 extending downwardly and convexly from the lid body 31.

[0022] In addition, the annular shape here is not limited to the circular annular shape shown in Figures 1 to 6, but refers to a structure type that has a closed shape along the circumferential direction and a through hole in the center, such as a square shape, etc. In other words, the appearance of the packaging box can be designed to be circular, square, or other shapes, and is not limited here.

[0023] The box body 1, the core box 2 and the box lid 3 are each a one-piece integral member molded in one piece, the mounting ring body 22 is inserted into the mounting slot 12 and fixedly mounted in the mounting slot 12, the limiting table 23 is located above the annular partition plate 13 and partially blocks the mouth of the accommodating cavity 11, a first sealing structure 4 is provided between the inner peripheral surface of the mounting ring body 22 and the outer peripheral surface of the annular partition plate 13, one end of the lid body 31 is rotatably connected to the connecting ring body 21, the cap ring 32 can be inserted into the inner ring body 24, and a second sealing structure is provided between the outer peripheral surface of the cap ring 32 and the inner peripheral surface of the inner ring body 24.

[0024] In the cosmetic packaging container of this embodiment, each part is specifically installed in the following manner.

[0025] The cover body 31 is provided with a first connecting part extending outwardly and the connecting ring body 21 is provided with a second connecting part extending upwardly, one of the first connecting part and the second connecting part has a rotating shaft 312, and the first connecting part and the second connecting part are connected to be rotatable around the axis of the rotating shaft 312, so as to realize a rotational connection between the core box 2 and the box cover 3. In this embodiment, as shown in FIG. 2, the first connecting part has two lugs 311 extending outwardly from the outer periphery of the cover body 31, the rotating shaft 312 is connected between the two lugs 311, and the second connecting part has a hanging ear 211 that can be hooked on the rotating shaft 312 and within which the rotating shaft 312 can rotate around its own axis, and the hanging ear 211 has a U-shape with an opening facing downward.

[0026] In this embodiment, the rotating shaft 312 is integral with two lugs 311, the rotating shaft 312 and the outer periphery of the cover body 31 are spaced apart from each other, and an insertion hole 313 is formed between the rotating shaft 312 and the outer periphery of the drooping ear 211 is inserted into the insertion hole 313. The outer periphery of the connecting ring body 21 has a recess 212 extending in the vertical direction, the drooping ear 211 is disposed in the recess 212, and at least the outer periphery of the lower end of the drooping ear 211 is fitted to the outer peripheral wall of the mounting slot 12. When installed in this manner, the rotating shaft 312 is integrally injection molded with the box cover 3, and the box cover 3 can rotate around the axis of the rotating shaft 312 to close the upper part of the core box 2.

[0027] The connecting ring body 21 includes a first ring body 213 and a second ring body 214 arranged in a ring shape on the circumferential outside of the first ring body 213. Between the first ring body 213 and the second ring body 214, an open groove 215 is formed with an opening facing downward and having an annular shape, and the outer peripheral wall of the second ring body 214 is elastically abutted against the outer peripheral wall of the mounting slot 12. In some other embodiments, a mating sealing structure may be provided between the outer peripheral wall of the second ring body 214 and the outer peripheral wall of the mounting slot 12 to prevent external substances from entering the mounting slot 12 through a gap between the two and contaminating the mounting slot 12.

[0028] The mounting ring body 22 is fitted around the circumferential outside of the annular partition plate 13, and the first sealing structure 4 is provided in one set or in multiple sets spaced apart in the vertical direction. Specifically, the first sealing structure 4 has a protrusion 41 and a groove 42, both of which are annular when fitted together, and the protrusion 41 is elastically abutted against the groove 42, the protrusion 41 extending outwardly in a convex manner from the outer peripheral wall of the annular partition plate 13 and the groove 42 extending outwardly in a concave manner from the inner peripheral surface of the mounting ring body 22, or the protrusion 41 extending inwardly in a convex manner from the inner peripheral surface of the mounting ring body 22 and the groove 42 extending inwardly in a concave manner from the outer peripheral wall of the annular partition plate 13. In some other embodiments, the first sealing structure 4 may only have a protrusion 41 provided on the outer peripheral wall of the annular partition plate 13 and extending convexly outward, such that when the mounting ring body 22 is inserted into the mounting slot 12, the protrusion 41 is in tight contact with the inner peripheral surface of the mounting ring body 22; alternatively, the first sealing structure 4 may only have a protrusion 41 provided on the inner peripheral surface of the mounting ring body 22 and extending convexly inward, such that when the core box 2 is inserted into the mounting slot 12, the protrusion 41 is in tight contact with the outer peripheral wall of the annular partition plate 13.

[0029] In this embodiment, two sets of the first sealing structures 4 are provided, and the two sets of the first sealing structures 4 are vertically spaced apart from each other. The upper first sealing structure 4 has a protrusion 41 extending inward from the inner peripheral surface of the mounting ring body 22, and the lower first sealing structure 4 has a protrusion 41 extending outward from the outer peripheral wall of the annular partition plate 13 and a groove 42 extending outward from the inner peripheral surface of the mounting ring body 22. When the mounting ring body 22 is inserted into the mounting slot 12, the upper protrusion 41 abuts against the outer peripheral wall of the annular partition plate 13, and the lower protrusion 41 abuts against the groove wall of the groove 42. The two sets of the first sealing structures 4 can not only fix the core box 2 and the box body 1 to each other, but also prevent the cosmetics in the receiving cavity 11 from leaking into the mounting slot 12.

[0030] In this embodiment, the outer peripheral surface of the cap ring 32 is tapered with the outer diameter gradually decreasing from top to bottom, the second sealing structure is provided with a convex ring 321 on the outer peripheral surface of the cap ring 32 and extends radially outward, and the inner peripheral surface of the inner ring body 24 is a cylindrical surface, during the process of the box cover 3 being closed downward, the outer peripheral surface of the cap ring 32 drives the inner ring body 24 to deflect to one side of the ring groove 25, and after the box cover 3 is closed above the core box 2, the convex ring 321 abuts against the inner peripheral surface of the inner ring body 24, thereby achieving a seal between the box cover 3 and the core box 2. At the same time, the inner ring body 24 tends to move inward and reset due to its own elastic force, so that the contact between the annular protrusion 321 and the inner ring body 24 becomes tighter, and the sealing effect is improved. The second sealing structure can prevent the cosmetics in the receiving cavity 11 from drying out and deteriorating, and can also prevent the cosmetics from leaking out of the receiving cavity 11.

[0031] As shown in Figures 1 to 3, the cosmetic packaging box further includes an outer cover 5, which is movably connected to the box body 1. When the outer cover 5 and the box body 1 are fitted together, a box cavity 6 that is sealed and can accommodate the box cover 3 and the core box 2 can be formed. In this embodiment, the outer cover 5 is rotatably connected to the box body 1 via a horizontally extending rotation shaft (not shown). Specifically, the outer cover 5 includes a main body portion 51 and a third connection portion 52 that extends downward from one end of the main body portion 51. The lower portion of the third connection portion 52 has a first through hole 521 that penetrates horizontally, the outer periphery of the box body 1 has a vertical groove 14 that extends in the up-down direction, and in the horizontal direction, two sets of second through holes 141 that extend horizontally in the same direction are provided in the outer wall of the box body 1 on both sides of the vertical groove 14. The third connecting portion 52 is inserted into the vertical groove 14 , and the rotating shaft penetrates the first through hole 521 , while both ends of the rotating shaft penetrate the second through hole 141 .

[0032] In other embodiments, the outer cover 5 and the box body 1 can be connected using a method similar to the connection method between the box cover 3 and the core box 2, and in this way the rotating shaft can be molded directly and integrally with the outer cover 5 or the box body 1, thereby eliminating the need for a separate rotating shaft.

[0033] In this embodiment, the main body 51 of the outer cover 5 is further provided with a lens 7 .

[0034] As shown in FIG. 4, the pivotal connection positions between the outer lid 5 and the box body 1, and the pivotal connection positions between the box lid 3 and the core box 2 are spaced apart from each other in the circumferential direction, which not only facilitates the layout of each component in the packaging box, but also prevents interference when the box lid 3 is opened again with the outer lid 5 open, and does not block the lens 7 inside the outer lid 5, making cosmetic use more convenient.

[0035] The cosmetic packaging box of this embodiment is suitable for filling cosmetics such as air cushion powder, and the cosmetic can be filled according to the following method to complete the assembly of the cosmetic packaging box of this embodiment.

[0036] First, the cosmetic is filled into the storage cavity 11 of the box body 1, and the outer part of the hanging ear 211 is inserted through the insertion port 313 and hooked onto the rotating shaft 312, thereby connecting the box lid 3 and the core box 2 together. Then, the box lid 3 and the core box 2, which are connected together, are attached to the box body 1 from top to bottom, so that the mounting ring body 22 is inserted into the mounting slot 12, and the core box 2 is fixed to the box body 1 and assembled. After that, the outer lid 5 and the box body 1 are connected together via the rotating shaft, completing the assembly.

[0037] In the cosmetic packaging box of this embodiment, the outer cover 5, the box cover 3, the core box 2, and the box body 1 are made of the same or similar materials, each part is integrally molded by a corresponding mold, and each part is completed by only one molding. When the packaging box is to be collected after the cosmetics are used up, the rotating shaft is taken out, the lens 7 is removed from the outer cover 5, and the lens 7 and the rotating shaft are collected separately, but the box body 1, the core box 2, and the box cover 3 can be collected as they are without disassembly, and the collection work is relatively simple. In some other embodiments, when the rotating shaft is integrally molded with the outer cover 5 or the box body 1, it is not necessary to remove the rotating shaft in the collection step, and it is only necessary to take out the lens 7 and collect it separately, and the remaining structure of the packaging box can be collected as it is without disassembly, simplifying the disassembly work during collection.

[0038] In short, the cosmetic packaging box of this embodiment is provided with a box body 1, a core box 2 and a box lid 3 which are each formed as a single unit, and the packaging box is assembled and formed by fitting the structures of each component together, and the box body 1 and the core box 2 are fitted together as is to store cosmetics, thereby reducing the number of components of the packaging box, reducing the number of molding dies and reducing structural costs. Meanwhile, the rotating shaft 312 can be molded integrally with the lid main body 31, eliminating the need to install a separate rotating shaft and simplifying the assembly work of the packaging box. At the same time, there is no need to disassemble the box body 1, the core box 2 and the box lid 3, and they can be collected as they are, simplifying the disassembly work during collection. [Explanation of symbols]

[0039] 1 box body, 11 receiving cavity, 12 mounting slot, 13 annular partition plate, 14 vertical groove, 141 second through hole, 2 core box, 21 connecting ring body, 211 hanging ear, 212 relief groove, 213 first ring body, 214 second ring body, 215 opening groove, 22 mounting ring body, 23 limit table, 24 inner ring body, 25 ring groove, 3 box lid, 31 lid body, 311 lug, 312 rotating shaft, 313 insertion port, 32 cap ring, 321 convex ring, 4 first sealing structure, 41 protrusion, 42 groove, 5 outer lid, 51 main body, 52 third connecting part, 521 first through hole, 6 box cavity, 7 lens

Claims

1. A cosmetic packaging box, The packaging box includes: A box body having an accommodation cavity with an opening facing upward and an attachment slot provided in a ring shape on the circumferential outer side of the accommodation cavity, and an annular partition plate is provided between the accommodation cavity and the attachment slot; a core box including a connecting ring body and an attachment ring body that are in contact with each other in a vertical direction, the connecting ring body having an outer diameter larger than that of the attachment ring body, a limiting table extending inwardly and convexly between the connecting ring body and the attachment ring body, the limiting table having an inner ring body extending upwardly and a ring groove formed between the inner ring body and the connecting ring body; a box lid having a lid body and a cap ring extending downwardly from the lid body; Equipped with Here, the box body, the core box and the box lid are each a one-piece integral member molded in one piece, the mounting ring body is inserted into the mounting slot and fixed to the mounting slot, the limiting table is located above the annular partition plate and partially blocks the mouth of the accommodating cavity, a first sealing structure is provided between the inner peripheral surface of the mounting ring body and the outer peripheral surface of the annular partition plate, one end of the lid body is rotatably connected to the connecting ring body, the cap ring can be inserted into the inner ring body in accordance with the inner ring body, and a second sealing structure is provided between the outer peripheral surface of the cap ring and the inner peripheral surface of the inner ring body.

2. The cosmetic packaging box according to claim 1, characterized in that the lid body is provided with a first connection portion extending convexly outward, the connection ring body is provided with a second connection portion extending convexly upward, one of the first connection portion and the second connection portion has a rotating shaft, and the first connection portion and the second connection portion are connected to be rotatable around the axis of the rotating shaft.

3. The cosmetic packaging box according to claim 2, characterized in that the first connection portion includes two lugs extending convexly outward from the outer periphery of the lid body, the rotating shaft is connected between the two lugs, and the second connection portion includes a hanging ear that can be hooked onto the rotating shaft and rotated around the axis of the rotating shaft.

4. The cosmetic packaging box according to claim 3, characterized in that the hanging ear has a U-shape with an opening facing downward, the rotating shaft and the two lugs are integrally formed, the rotating shaft and the outer peripheral portion of the lid body are spaced apart from each other, and an insertion opening is formed between the two into which the outer portion of the hanging ear can be inserted.

5. The cosmetic packaging box according to claim 3, characterized in that the outer peripheral portion of the connecting ring body has an escape groove extending in the vertical direction, the hanging ear is disposed in the escape groove, and the outer peripheral portion of the hanging ear is abutted against the outer peripheral wall of the mounting slot.

6. The cosmetic packaging box according to claim 1, characterized in that the mounting ring body is fitted to the circumferential outside of the annular partition plate, and the first sealing structure is provided in one set or in multiple sets spaced apart in the vertical direction.

7. The cosmetic packaging box according to claim 6, characterized in that the first sealing structure comprises a protrusion and a groove, both of which are mated to each other and have an annular shape, the protrusion elastically abuts against the groove, the protrusion extends convexly outward from the outer peripheral wall of the annular partition plate, and the groove extends concavely outward from the inner peripheral surface of the mounting ring body, or the protrusion extends convexly inward from the inner peripheral surface of the mounting ring body, and the groove extends concavely inward from the outer peripheral wall of the annular partition plate.

8. The cosmetic packaging box according to claim 7, characterized in that the first sealing structure has two sets spaced apart in the vertical direction, and one set of the protrusions and grooves is provided on each of the outer peripheral wall of the annular partition plate and the inner peripheral surface of the mounting ring body.

9. The cosmetic packaging box according to claim 1, characterized in that the connecting ring body comprises a first ring body and a second ring body arranged in a ring shape circumferentially outside the first ring body, an opening groove having an opening facing downward and an annular shape is formed between the first ring body and the second ring body, and an outer peripheral wall of the second ring body is elastically abutted against an outer peripheral wall of the mounting slot.

10. 2. The cosmetic packaging box according to claim 1, wherein the outer peripheral surface of the cap ring is a tapered surface in which the outer diameter gradually decreases from top to bottom, and the inner peripheral surface of the inner ring body is a cylindrical surface.

11. The cosmetic packaging box according to claim 10, characterized in that the second sealing structure comprises a convex ring provided on the outer peripheral surface of the cap ring and extending radially outward, and when the cap ring covers the core box, the convex ring abuts against the inner peripheral surface of the inner ring body.

12. The cosmetic packaging box according to any one of claims 1 to 11, further comprising an outer lid, the outer lid being movably connected to the box body, and when the outer lid and the box body are fitted together, a box cavity can be formed that is sealed and capable of accommodating the box lid.

13. The cosmetic packaging box according to claim 12, characterized in that the outer lid is rotatably connected to the box body, and the positions at which the outer lid and the box body are rotatably connected and the positions at which the box lid and the core box are rotatably connected are spaced apart in the circumferential direction.

Images