Detachable paper box

Abstract

A detachable paper box comprises an outer wrapping layer, a grey board layer, a limiting plate and a box detaching belt, the outer wrapping layer is formed by folding outer wrapping paper and comprises a box-shaped outer layer and a barrel-shaped inner layer, and the top of the outer layer is fixedly connected with the top of the inner layer; the outer layer inner side face and the inner layer outer side face are spaced by a first preset distance to form an annular reinforcing area. A limiting piece is arranged at the bottom of the inner layer and is spaced from the bottom of the outer layer by a second preset distance to form a bottom reinforcing area; the grey board layer comprises a plurality of first grey boards and second grey boards, wherein the first grey boards are contained in the annular reinforcing area and attached to the inner surface of the outer layer and the outer surface of the inner layer respectively, and the second grey boards are fixedly connected with the first grey boards and contained in the bottom reinforcing area; the limiting plate is contained in the inner cavity of the inner layer and abuts against the inner surface of the inner layer, the upper surface of the limiting piece and the upper surface of the second grey board; the box disassembling belt surrounds the outer wrapping layer and is sequentially and fixedly connected with the outer side walls of the outer layer, and the box disassembling belt breaks the outer layer when bearing external traction force so as to separate the outer layer from the grey board layer and unfold the paper box.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging boxes, in particular to a detachable paper box. Background Art

[0002] A paper box is a container made of processed pulp for storing or packaging items. After use, it can be recycled to achieve the circular utilization of resources and reduce the production cost of recycled paper products. Currently, in the processing of paper boxes, the pulp is first processed into cardboard, and then the two opposite side edges of the cardboard are fixed by metal nails to form a ring-shaped cardboard. After assembling the bottom structure of the ring-shaped cardboard, the assembly of the paper box is completed. When the paper box is transported or recycled after being discarded, it needs to be flattened. Due to the use of metal nails, a special nail remover is required to pull out the metal nails, making it difficult to flatten the paper box and resulting in low flattening efficiency. In addition, before the shredded cardboard enters the pulp recycling operation, it is necessary to check whether metal nails are mixed in the shredded cardboard to avoid the impact of metal nails remaining on the cardboard on the quality of recycled paper products. In this way, the operation process of cardboard recycling will be increased, thereby increasing the cost of cardboard recycling. Summary of the Utility Model

[0003] Based on this, in view of the above deficiencies, it is necessary to provide a detachable paper box that is easy to flatten and has a low cost of recycling.

[0004] A detachable paper box includes:

[0005] An outer wrapper, which is formed by folding outer paper and includes an outer layer and an inner layer received in the inner cavity of the outer layer. The outer layer has a box-shaped structure with an open top, and the inner layer has a cylindrical structure. The top of the outer layer is fixedly connected to the top of the inner layer. The inner side surface of the outer layer is spaced from the outer side surface of the inner layer by a first preset distance, so as to form an annular reinforcement area between the inner side surface of the outer layer and the outer side surface of the inner layer. A limiting piece extending towards the middle of the inner layer is provided at the bottom of the inner layer, and the limiting piece is spaced from the bottom of the outer layer by a second preset distance, so as to form a bottom reinforcement area between the limiting piece and the top of the outer layer.

[0006] A grey board layer, which includes a plurality of first grey boards received in the annular reinforcement area and respectively adhered to the inner surface of the outer layer and the outer surface of the inner layer, and second grey boards fixedly connected to each first grey board and received in the bottom reinforcement area.

[0007] A limiting board, which is received in the inner cavity of the inner layer and abuts against the inner surface of the inner layer, the upper surface of the limiting piece, and the upper surface of the second grey board respectively.

[0008] The unpacking tape surrounds the outer wrapper and is fixedly connected to the outer side walls of the outer layer in sequence. When the unpacking tape is subjected to an external pulling force, it damages the outer layer to separate the outer layer and the grey board layer and unfold the paper box.

[0009] In one embodiment, the detachable paper box further includes a tough paper tape fixedly connected to the outer side wall of the outer layer and the inner surface of the unpacking tape respectively.

[0010] In one embodiment, the width of the tough paper tape is less than or equal to the width of the unpacking tape.

[0011] In one embodiment, two rows of tear holes are formed on the outer layer on both sides of the unpacking tape and extend along the length direction of the unpacking tape.

[0012] In one embodiment, the head of the unpacking tape is stacked on the tail of the unpacking tape to form a gripping portion on the outer side of the outer layer, and a tear mark is provided on the gripping portion.

[0013] In one embodiment, the gripping portion deflects away from the outer side surface of the outer layer and forms an angle with the outer side surface of the outer layer.

[0014] In one embodiment, the outer wrapping paper includes a mounting portion composed of M first connecting portions arranged side by side and connected in sequence, M transition portions arranged in one-to-one correspondence and fixed on the tops of the first connecting portions, M second connecting portions arranged in one-to-one correspondence and fixed on the tops of the transition portions, a joint portion arranged side by side with the first connecting portions and fixedly connected to the first connecting portion at one end of the mounting portion, M trapezoidal receiving portions arranged in one-to-one correspondence and fixed on the bottoms of the first connecting portions, a bottom sheet, and M limiting sheets in the shape of a trapezoid arranged in one-to-one correspondence and fixed on the tops of the second connecting portions, where M is an integer greater than or equal to 3; the unpacking tape is connected to the first connecting portions in sequence and fixedly connected to the joint portion, the joint portion is bonded to the first connecting portion at the other end of the mounting portion, and the bottom sheet is bonded to each of the trapezoidal receiving portions to form the outer layer, and each of the second connecting portions is bent towards the first connecting portion to form the inner layer.

[0015] In one embodiment, the adjacent second connecting portions are spaced apart by a third preset distance, and each transition portion is in the shape of a trapezoid, and the width of the top of the transition portion is greater than the width of the bottom of the transition portion.

[0016] In one embodiment, the second grey board and each of the first grey boards are integrally formed to form a grey board layer in a cross-shaped structure.

[0017] In one embodiment, the hardness of the limiting plate is greater than the hardness of the outer wrapping paper.

[0018] The detachable paper box of the present invention is implemented by providing an outer covering layer and a gray board layer whose position is jointly constrained by the outer covering layer and the limiting plate, and providing a box removal belt on the outer surface of the outer covering layer. While ensuring the stability of the entire paper box structure, when the paper box needs to be recycled, it is only necessary to pull the box removal belt on the outside of the paper box to destroy the outer layer of the outer covering layer, so that the outer layer contacts the constrained gray board layer, and the paper box is dispersed and easy to flatten. Compared with the paper box as a whole, the outer layer thickness of the outer covering layer is smaller, and only a smaller force is required to destroy the outer layer and unfold the paper box, which reduces the difficulty of unfolding the paper box and improves the unfolding efficiency of the paper box. Since no metal nails or other connectors are involved in the processing and assembly of the paper box, there is no need to set up a special nail removal process during the paper box recycling process, which is conducive to reducing the cost of paper box recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a detachable paper box in one embodiment of the present invention;

[0020] Figure 2 This is a structural schematic diagram of a detachable paper box in a first disassembly stage in one embodiment of the present invention;

[0021] Figure 3 This is a structural schematic diagram of a detachable paper box in a second disassembly stage in one embodiment of the present invention;

[0022] Figure 4 This is a schematic structural diagram of a detachable paper box in a third disassembly stage in one embodiment of the present invention;

[0023] Figure 5 This is a schematic structural diagram of a detachable paper box in a fourth disassembly stage in one embodiment of the present invention;

[0024] Figure 6 This is a structural diagram of a detachable paper box in a fifth disassembly stage in one embodiment of the present invention;

[0025] Figure 7 This is a schematic structural diagram of a detachable paper box in a sixth disassembly stage in one embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of removing the cassette in one embodiment of the present invention;

[0027] Figure 9 This is a schematic diagram of the structure of the connection between the cassette tape and the pliable paper tape in one embodiment of the present invention;

[0028] Figure 10 This is a schematic structural diagram of the outer wrapping paper in one embodiment of the present utility model;

[0029] Figure 11Schematic diagram of the structure of the grey board layer in an embodiment of the present utility model;

[0030] Figure 12 Schematic diagram of the structure of the limit plate in an embodiment of the present utility model. Detailed implementation manners

[0031] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following will describe the detailed implementation manners of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0032] Please refer to Figures 1-12 , the present utility model discloses a detachable paper box that is easy to flatten and has a low cost of recycling and remanufacturing. The detachable paper box includes an outer wrapping layer 100, a grey board layer 200, a limit plate 300, and a box-opening tape 400. Among them, the grey board layer 200 is used to provide the overall framework of the paper box in this embodiment to ensure the overall mechanical strength of the paper box, and at the same time define the inner and outer contour shapes of the paper box. Corresponding graphic and text content can also be printed on the outer surface or inner surface of the outer wrapping layer 100. In this embodiment, the outer wrapping layer 100 and the limit plate 300 jointly wrap the outer surface and inner surface of the grey board layer 200. While protecting the grey board layer 200 from being exposed, the outer wrapping layer 100 and the limit plate 300 also jointly shape the grey board layer 200 to prevent the grey board layer 200 from spreading out, so as to ensure the stability of the overall structure of the paper box. In addition, the limit plate 300 is also used to limit the part of the outer wrapping layer 100 that cooperates with the bottom of the grey board layer 200 to prevent the outer wrapping layer 100 from spreading out. The box-opening tape 400 is used to provide a disassembly part of the paper box to facilitate the operator to quickly disassemble the paper box.

[0033] Specifically, the outer wrapping layer 100 is formed by folding wrapping paper. The outer wrapping layer 100 includes an outer layer 110 and an inner layer 120 received in the inner cavity of the outer layer 110. The outer layer 110 has a box-shaped structure with an open top. The inner layer 120 has a cylindrical structure, and the top of the outer layer 110 is fixedly connected to the top of the inner layer 120. The inner side surface of the outer layer 110 is spaced from the outer side surface of the inner layer 120 by a first preset distance, so as to form an annular reinforcement area between the inner side surface of the outer layer 110 and the outer side surface of the inner layer 120. A limiting piece 121 extending towards the middle of the inner layer 120 is provided at the bottom of the inner layer 120. The limiting piece 121 is spaced from the bottom of the outer layer 110 by a second preset distance, so as to form a bottom reinforcement area between the limiting piece 121 and the top of the outer layer 110. It can also be understood that the top of the outer layer 110 is flush with the top of the inner layer 120, the bottom of the outer layer 110 is lower than the bottom of the inner layer 120, and the top of the outer layer 110 and the top of the inner layer 120 are fixed by a connecting strip 130 arranged in a ring shape, so that the top of the annular reinforcement area is separated from the external environment, realizing the covering of the top of the grey board layer 200. In this embodiment, the outer wrapping layer 100 as a whole has a cube box-shaped structure or a cuboid box-shaped structure with an open top, that is to say, the outer layer 110 of the outer wrapping layer 100 has a cube box-shaped structure or a cuboid box-shaped structure with an open top, and the inner layer 120 of the outer wrapping layer 100 has a cylindrical structure with a rectangular cross-section. In other embodiments, the outer wrapping layer 100 can also have a polyhedron box-shaped structure with an open top and a cross-section of pentagon, hexagon or more sides, which will not be elaborated here. By providing an annular reinforcement area and a bottom reinforcement area between the outer layer 110 and the inner layer 120, an installation position is provided for the grey board layer 200.

[0034] The grey board layer 200 includes a plurality of first grey boards 210 received in the annular reinforcement area and respectively attached to the inner surface of the outer layer 110 and the outer surface of the inner layer 120, and a second grey board 220 fixedly connected to each first grey board 210 and received in the bottom reinforcement area. The number of the first grey boards 210 is the same as the number of the side walls of the outer layer 110 and the number of the side walls of the inner layer 120, so that each side of the outer wrapping layer 100 is effectively supported by the grey board layer 200. It should be noted that in order to meet the setting of the grey board layer 200 in the annular reinforcement area and the bottom reinforcement area, the first grey boards 210 are not fixed to each other, so as to bend the connection parts of the first grey boards 210 and the second grey board 220 to form a box-shaped grey board layer 200. Further, in this embodiment, the second grey board 220 and each first grey board 210 are integrally formed to form a cross-shaped grey board layer 200. The cross-shaped grey board layer 200 is the form of the paper box before unfolding or assembling. When the paper box is assembled, the grey board layer 200 is a box-shaped structure with an open top surrounded by the first grey boards 210 and the second grey board 220.

[0035] The limiting plate 300 is received in the inner cavity of the inner layer 120 and abuts against the inner surface of the inner layer 120, the upper surface of the limiting piece 121, and the upper surface of the second grey board 220 respectively. Further preferably, in order to improve the connection stability between the limiting plate 300 and the outer wrapping layer 100 and the grey board layer 200, an adhesive liquid is also coated on the bottom of the limiting plate 300 to realize the adhesion between the limiting plate 300 and the upper surface of the limiting piece 121 and the upper surface of the second grey board 220. It should be noted that in this embodiment, the hardness of the limiting plate 300 is greater than that of the outer wrapping paper, so as to prevent the limiting plate 300 from deforming and increase the binding force of the limiting plate 300 on the inner surface of the inner layer 120, the upper surface of the limiting piece 121, and the upper surface of the second grey board 220, ensuring the stability of the overall structure of the paper box.

[0036] The unpacking tape 400 surrounds the outer wrapping layer 100 and is fixedly connected to the outer side walls of the outer layer 110 in sequence. When the unpacking tape 400 is subjected to an external pulling force, it destroys the outer layer 110 to separate the outer layer 110 and the grey board layer 200 and unfold the paper box. It should be noted that in this embodiment, the unpacking tape 400 is fixed on the outer side wall of the outer layer 110 and forms an annular structure. In this way, when the unpacking tape 400 completely leaves the outer layer 110 of the outer wrapping layer 100 under the action of an external pulling force, the outer side surface of the outer layer 110 is damaged and an annular opening is formed on the outer side surface of the outer layer 110, so that the upper part of the outer layer 110 is completely separated from the lower part of the outer layer 110. In this way, without removing the limiting plate 300, the constraints of the outer layer 110 and the inner layer 120 on the grey board layer 200 are released, and the grey board layer 200 becomes loose, so that the operator can unfold the paper box, reducing the disassembly and assembly difficulty of the paper box.

[0037] In one embodiment, the detachable paper box further includes a tough paper tape 500 fixedly connected to the outer side wall of the outer layer 110 and the inner surface of the unpacking tape 400 respectively, and the hardness of the tough paper tape 500 is greater than that of the unpacking tape 400. By arranging the tough paper tape 500 on the inner surface of the unpacking tape 400, the unpacking tape 400 and the tough paper tape 500 are connected as a whole, which can avoid the problem of difficult disassembly of the paper box caused by the breakage of the tough paper tape 500 during the tearing process of the tough paper tape 500, and improve the reliability of the paper box disassembly operation. Further, in this embodiment, the width of the tough paper tape 500 is less than or equal to the width of the unpacking tape 400 to avoid the influence on the shape of the paper box caused by the protrusion of the tough paper tape 500 from the edge of the unpacking tape 400.

[0038] When the tough paper tape 500 is fixed to the inner surface of the unpacking tape 400, the side of the tough paper tape 500 facing away from the unpacking tape 400 is fixedly connected to the outer side surface of the outer layer 110 through glue to improve the connection strength between the tough paper tape 500 and the outer layer 110. In one embodiment, two rows of tear holes 111 are formed on the outer layer 110 on both sides of the unpacking tape 400 and extending along the length direction of the unpacking tape 400. In this way, the part of the outer layer 110 connected to the unpacking tape 400 forms a tearable part. By arranging two rows of tear holes 111 on both sides of the unpacking tape 400 on the outer layer 110, the path of the unpacking tape 400 during tearing is defined, which can prevent the rest of the outer layer 110 from being damaged during the tearing of the unpacking tape 400 and reduce the difficulty of tearing the unpacking tape 400. It should be noted that in one embodiment, a groove is provided on the outer side surface of the outer layer 110 at the position corresponding to the tearable part. The tough paper tape 500 and the unpacking tape 400 are received in the groove and fixedly connected to the inner surface of the groove, and the outer surface of the tough paper tape 500 is flush with the outer side surface of the outer layer 110 to reduce the influence of the unpacking tape 400 on the outer shape of the paper box. Further, the head of the unpacking tape 400 is stacked on the tail of the unpacking tape 400 to form a gripping part 410 on the outside of the outer layer 110, and a tear mark 420 is provided on the gripping part 410. Preferably, the gripping part 410 is deflected away from the outer side surface of the outer layer 110 to form an angle with the outer side surface of the outer layer 110, so that the operator can grip the gripping part 410 and tear the unpacking tape 400.

[0039] In one embodiment, the outer wrapping paper includes a mounting portion composed of M first connecting portions 140 arranged side by side and sequentially connected, M transition portions 150 arranged in one-to-one correspondence and fixed on the tops of the respective first connecting portions 140, M second connecting portions 160 arranged in one-to-one correspondence and fixed on the tops of the respective transition portions 150, a joint portion 170 arranged side by side with the respective first connecting portions 140 and fixedly connected to the first connecting portion 140 at one end of the mounting portion, M trapezoidal receiving portions 180 arranged in one-to-one correspondence and fixed on the bottoms of the respective first connecting portions 140, a bottom sheet 190, and M limiting pieces 121 of trapezoidal structure arranged in one-to-one correspondence and fixed on the tops of the respective second connecting portions 160, where M is an integer greater than or equal to 3; the unpacking tape 400 sequentially connects the respective first connecting portions 140 and is fixedly connected to the joint portion 170, the joint portion 170 is bonded to the first connecting portion 140 at the other end of the mounting portion, and the bottom sheet 190 is respectively bonded to the respective trapezoidal receiving portions 180 to form the outer layer 110, and each second connecting portion 160 is bent towards the direction close to the first connecting portion 140 to form the inner layer 120. Further, the width of the second connecting portion 160 is smaller than the width of the first connecting portion 140, the adjacent second connecting portions 160 are spaced apart by a third preset distance, and each transition portion 150 has a trapezoidal structure, and the width of the top of the transition portion 150 is greater than the width of the bottom of the transition portion 150. By defining that the width of the second connecting portion 160 is smaller than the width of the first connecting portion 140, designing the transition portion 150 as a trapezoidal structure, and making the adjacent second connecting portions 160 spaced apart by a preset distance, after each second connecting portion 160 is bent towards the direction close to the first connecting portion 140 until the second connecting portion 160 is parallel to the first connecting portion 140, the respective first connecting portions 140 are connected into a ring through the joint portion 170, and each second connecting portion 160 is also enclosed into a ring structure under the push of the first connecting portion 140, and the edges of the adjacent second connecting portions 160 are in tight contact, so as to obtain the inner layer 120 of the outer wrapping layer 100. It should be noted that in other embodiments, the bottom sheet 190 is integrally formed with the trapezoidal receiving portion 180 on one of the first connecting portions 140, or it can be understood that the trapezoidal receiving portion 180 on one of the first connecting portions 140 constitutes a part of the bottom sheet 190, or the trapezoidal receiving portion 180 on one of the first connecting portions 140 is cancelled, and the bottom of the first connecting portion 140 is extended downward to obtain the bottom sheet 190. Of course, in actual production, according to different processing techniques, the outer wrapping paper can also be of other shapes, as long as it is ensured that the outer wrapping paper can form a cavity for receiving the grey board layer 200 after folding, and the unpacking tape 400 is fixed on the outer surface of the outer wrapping layer 100, which will not be elaborated herein.

[0040] Implementing the detachable paper box of the present utility model, by providing an outer wrapping layer 100 and a grey board layer 200 whose position is jointly restricted by the outer wrapping layer 100 and the limiting plate 300, and arranging a box-opening belt 400 on the outer surface of the outer wrapping layer 100. While ensuring the stability of the entire paper box structure, when the paper box needs to be recycled, only by pulling the box-opening belt 400 outside the paper box can the outer layer 110 of the outer wrapping layer 100 be damaged, so that the constraint of the outer layer 110 on the grey board layer 200 is released, and the paper box will spread out and be conducive to flattening. Compared with the whole paper box, the outer layer 110 of the outer wrapping layer 100 has a smaller thickness, and only a relatively small force is required to damage the outer layer 110 and unfold the paper box, which reduces the difficulty of unfolding the paper box and improves the unfolding efficiency of the paper box; since no connecting parts such as metal nails are involved in the processing and assembly process of the paper box, there is no need to set up a special nail-removing process during the paper box recycling process, which is beneficial to reducing the cost of paper box recycling.

[0041] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0042] The above-described embodiments only represent several implementation manners of the present utility model, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A detachable paper box, characterized in that, Comprising: An outer wrapper, which is formed by folding an outer wrapping paper and includes an outer layer and an inner layer received in the inner cavity of the outer layer. The outer layer has a box-shaped structure with an open top, and the inner layer has a cylindrical structure. The top of the outer layer is fixedly connected to the top of the inner layer. The inner side surface of the outer layer is spaced apart from the outer side surface of the inner layer by a first preset distance, so as to form an annular reinforcement area between the inner side surface of the outer layer and the outer side surface of the inner layer. A limiting piece extending towards the middle of the inner layer is provided at the bottom of the inner layer. The limiting piece is spaced apart from the bottom of the outer layer by a second preset distance, so as to form a bottom reinforcement area between the limiting piece and the top of the outer layer. A grey board layer, which includes a plurality of first grey boards received in the annular reinforcement area and respectively adhered to the inner surface of the outer layer and the outer surface of the inner layer, and a second grey board fixedly connected to each first grey board and received in the bottom reinforcement area. A limiting board, which is received in the inner cavity of the inner layer and abuts against the inner surface of the inner layer, the upper surface of the limiting piece and the upper surface of the second grey board respectively. A box-opening tape, which surrounds the outer wrapper and is fixedly connected to each outer side wall of the outer layer in sequence. When the box-opening tape is subjected to an external pulling force, it destroys the outer layer to separate the outer layer and the grey board layer and unfold the paper box.

2. The detachable paper box according to claim 1, wherein It further includes a tough paper tape fixedly connected to the outer side wall of the outer layer and the inner surface of the box-opening tape respectively.

3. The detachable paper box according to claim 2, wherein The width of the tough paper tape is less than or equal to the width of the box-opening tape.

4. The detachable paper box according to claim 1, characterized in that, Two rows of easy-tear holes are formed on the outer layer on both sides of the box-opening tape and extending along the length direction of the box-opening tape.

5. The detachable paper box according to claim 1, characterized in that, The head of the box-opening tape is stacked on the tail of the box-opening tape to form a gripping part on the outer side of the outer layer, and an easy-tear mark is provided on the gripping part.

6. The detachable paper box according to claim 5, wherein The gripping part deflects away from the outer side surface of the outer layer and forms an angle with the outer side surface of the outer layer.

7. The detachable paper box according to claim 1, wherein The outer wrapping paper includes a mounting part composed of M first connecting parts arranged side by side and connected in sequence, M transition parts arranged in one-to-one correspondence and fixed on the tops of the first connecting parts respectively, M second connecting parts arranged in one-to-one correspondence and fixed on the tops of the transition parts respectively, a joint part arranged side by side with the first connecting parts and fixedly connected to the first connecting part at one end of the mounting part, M trapezoidal receiving parts arranged in one-to-one correspondence and fixed on the bottoms of the first connecting parts respectively, a bottom sheet, and M limiting pieces in the shape of trapezoidal structures arranged in one-to-one correspondence and fixed on the tops of the second connecting parts respectively. M is an integer greater than or equal to 3. The box-opening tape connects the first connecting parts in sequence and is fixedly connected to the joint part. The joint part is bonded to the first connecting part at the other end of the mounting part, and the bottom sheet is bonded to each trapezoidal receiving part respectively to form the outer layer. Each second connecting part is bent towards the first connecting part to form the inner layer.

8. The detachable paper box according to claim 7, wherein, Adjacent second connecting parts are spaced apart by a third preset distance, and each transition part has a trapezoidal structure. The width of the top of the transition part is greater than the width of the bottom of the transition part.

9. The detachable paper box according to claim 1, wherein The second grey board and each first grey board are integrally formed to form a grey board layer in a cross shape.

10. The detachable paper box according to claim 1, characterized in that, The hardness of the limiting board is greater than the hardness of the outer wrapping paper.

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