CN220743661U - Multilayer portable packing box - Google Patents

Abstract

The utility model relates to the technical field of packaging boxes, in particular to a multilayer portable packaging box which comprises a first supporting layer, a second supporting layer and a third supporting layer which are sequentially arranged from top to bottom, wherein a first connecting plate is arranged between the first supporting layer and the second supporting layer, a second connecting plate is arranged between the second supporting layer and the third supporting layer, the multilayer portable packaging box further comprises a first outer baffle, a second outer baffle and a handle, the handle is arranged at the top of the first outer baffle, the first outer baffle is positioned above the second connecting plate, the bottom of the first outer baffle is connected with the second supporting layer in an inserting mode, the second outer baffle is positioned at the outer side of the first connecting plate, the bottom of the second outer baffle is connected with the third supporting layer, the second outer baffle is connected with the first connecting plate in an inserting mode, and the second outer baffle is positioned above the first supporting layer and is connected with the handle in an inserting mode. The utility model provides a multi-layer portable packing box which is provided with a plurality of interlayers, so that the packing space is fully and reasonably utilized, and the portable packing box can be conveniently carried while the storage space is increased.

Description

Multilayer portable packing box

Technical Field

The utility model relates to the technical field of packaging boxes, in particular to a multi-layer portable packaging box.

Background

The existing packaging paper boxes are of a single-layer structure generally, and cannot separate and package various fruit and vegetable agricultural products, multi-taste snacks or various beverages at one time, especially packaging similar to milk tea and other beverages is generally only capable of placing two or four cups of single-layer packaging, and for takeaway riders, the space on the upper portion of a packaging box is wasted and cannot be reasonably utilized.

Disclosure of Invention

The utility model aims to solve the problem that the upper space of the existing single-layer packaging paper box cannot be fully utilized, so that various objects cannot be placed independently, and provides a multi-layer portable packaging box which is provided with a plurality of interlayers, so that the packaging space is fully and reasonably utilized, and the storage space is enlarged, and meanwhile, the portable packaging box is convenient to carry.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a portable packing carton of multilayer, the packing carton is formed for single cardboard is folding, under folding condition, and the packing carton includes from last first supporting layer, second supporting layer, the third supporting layer that down sets gradually first supporting layer with be equipped with first connecting plate between the second supporting layer, the second supporting layer with be equipped with the second connecting plate between the third supporting layer, still include first outer baffle and second outer baffle, handle, the handle install in first outer baffle top, first outer baffle is located second connecting plate top and first outer baffle bottom peg graft with the second supporting layer, second outer baffle sets up in opposite directions with first outer baffle, and the second outer baffle is located the first connecting plate outside, and second outer baffle bottom is connected with the third supporting layer, and the second outer baffle still peg graft with first connecting plate, and the second outer baffle is located first supporting layer top department and still peg graft with the handle.

In the scheme, in the unfolded state, the packaging box is a flat-laid cardboard, and a corrugated cardboard with higher hardness is preferable; in a folded state, the packaging box can form a packaging accommodating space with three supporting layers, and the first supporting layer, the second supporting layer and the third supporting layer are used for respectively classifying, separating and packaging various fruit and vegetable agricultural products, and can also be used for separating and packaging various tastes of snacks or various drinks, and the first supporting layer is connected with the second supporting layer by using a first connecting plate, and meanwhile, the second outer baffle is used for providing support, so that the first supporting layer can be firmly arranged; the second supporting layer is connected with the third supporting layer by the second connecting plate, and the second supporting layer is supported by the first outer baffle plate, so that the second supporting layer can be stably arranged; the first outer baffle and the second outer baffle also have the functions of the outer shell of the packing box, so that an accommodating space is formed between the first outer baffle and the second outer baffle, and the first supporting layer, the second supporting layer and the third supporting layer form the bottom of each separating layer; along the height direction, the first supporting layer, the second supporting layer and the third supporting layer are sequentially arranged from top to bottom; the handle can act on the first outer baffle and the second outer baffle simultaneously through the plugging of the first outer baffle and the second outer baffle and is positioned at the top of the whole packing box, so that the packing box is convenient to carry.

Further, the first outer baffle includes first transition board, outside backup pad, the inboard backup pad that connects gradually, first transition board keep away from outside backup pad end with the handle is connected, outside backup pad with inboard backup pad junction is equipped with first grafting portion, the second support layer is equipped with second grafting portion, under the folded condition, outside backup pad and the folding coincidence setting of inboard backup pad, first transition board sets up for outside backup pad slope, first grafting portion with second grafting portion is pegged graft. The first transition plate is used for connecting the handle and the outer support plate, and the outer support plate and the inner support plate are overlapped to improve strength; the first grafting portion is pegged graft with the second grafting portion, makes first outer baffle and second support layer be connected, and the inboard baffle is located the opposite side of first connecting plate, and inboard baffle and first connecting plate one end respectively are connected with first support layer, and the other end is connected with second support layer, makes and forms firm supporting relation between first support layer and the second support layer.

Further, the second outer baffle is including apron, second transition board, last backup pad, the lower bolster that connects gradually, the apron with second transition board junction is equipped with the slot, and the second transition board sets up in opposite directions with first transition board, go up the backup pad with lower bolster junction is equipped with the third grafting portion, first connecting plate is equipped with the fourth grafting portion, and under the folded condition, handle and slot grafting, the apron lid is located first transition board outside, and the second transition board is inclined for last backup pad setting, goes up the backup pad and is located the first connecting plate outside and pass through third grafting portion with fourth grafting portion is pegged graft fixedly, and lower backup pad sets up in opposite directions with the second connecting plate and lower bolster bottom is connected with the third supporting layer. The second transition plate is used for connecting the cover plate and the upper support plate, preferably, the second transition plate is symmetrically arranged with the first transition plate, the cover plate is spliced with the handle and covers the outer side of the first transition plate, so that the handle can act on the first outer baffle plate and the second outer baffle plate simultaneously; the upper supporting plate is positioned at the outer side of the first connecting plate, the third inserting part is inserted into the fourth inserting part, so that the first connecting plate is connected with the upper supporting plate, and the supporting strength of the first supporting layer can be increased; the lower support plate and the second connecting plate support the second bearing layer together, so that the second bearing layer can stand relative to the third bearing layer.

Further, the first supporting layer, the second supporting layer and the third supporting layer all adopt the same structure. The first bearing layer, the second bearing layer and the third bearing layer are all used as the bottom of each interlayer and are used for supporting articles; when the packing box is used for placing the same kind of articles, the packing box can be used for placing the same kind of articles when the first bearing layer, the second bearing layer and the third bearing layer all adopt the same structure due to the similar structures required to be supported. In the cognitive range of the person skilled in the art, the structures of the first supporting layer, the second supporting layer and the third supporting layer can be correspondingly arranged according to the objects to be placed, and different structures can be adopted respectively, so that the novel multifunctional portable multifunctional device is used for placing different kinds of objects.

Further, the first supporting layer comprises a supporting bottom plate, a first supporting bracket and a second supporting bracket, the first supporting bracket and the second supporting bracket are respectively arranged on two sides of the supporting bottom plate, under the folding condition, one end of each of the first supporting bracket and the second supporting bracket is integrally formed with the supporting bottom plate, the other end of each of the first supporting bracket and the second supporting bracket is spliced with the supporting bottom plate, and the first supporting bracket is further connected with the second supporting bracket in a clamping mode. The bearing bottom plate is used for providing support to the first support bracket and the second support bracket, and the first support bracket and the second support bracket are used for providing support to articles. It is within the knowledge of the person skilled in the art that the number of support brackets may be increased to meet the placement requirements of the item, as may the number of support layers.

Further, the first support bracket comprises a first support top, a first front side, a first rear side, a first left side and a first right side, wherein the first support top is provided with a first positioning hole, the first left side and the first right side are respectively arranged on two sides of the first support top and are integrally formed with the first support top, the first front side and the first rear side are respectively arranged on two sides of the first left side and are integrally formed with the first left side, a fifth inserting part is arranged at the bottom of the first right side, a sixth inserting part is arranged on the supporting bottom plate, and in a folded state, the first front side, the first rear side, the first left side and the first right side are respectively used for providing support for the first support top to enable the first support top to be parallel to the supporting bottom plate, and the fifth inserting part is inserted with the sixth inserting part. The first front side, the first rear side, the first left side and the first right side support the first supporting top together, and the first positioning holes position placed articles, so that the articles are placed conveniently, and the beverage placing device has the function of preventing toppling. And the fifth plug-in part is used for plugging with the sixth plug-in part, so that the connection and erection of the first right side surface and the bearing bottom plate are realized.

Further, the second supporting bracket comprises a second supporting top provided with a second positioning hole, a second front side surface, a second rear side surface, a second left side surface and a second right side surface, the second left side surface and the second right side surface are respectively arranged on two sides of the second supporting top and are integrally formed with the second supporting top, the second front side surface and the second rear side surface are respectively arranged on two sides of the second right side surface and are integrally formed with the second right side surface, a seventh inserting part is arranged at the bottom of the second left side surface, and in a folded state, the second front side surface, the second rear side surface, the second left side surface and the second right side surface are used for providing support for the second supporting top so that the second supporting top and a supporting bottom plate are arranged in parallel, and the seventh inserting part is inserted with the sixth inserting part; the first front side is also clamped with the second front side, and the first rear side is also clamped with the second rear side. The second support bracket has a similar structure and functions to the first support bracket; the second front side, the second rear side, the second left side and the second right side provide support for the second support top, and the second positioning holes provide positioning functions for the articles.

Further, a first clamping part is arranged at the position, close to the second front side surface, of the first front side surface, a second clamping part is arranged at the position, close to the first front side surface, of the second front side surface, and the first clamping part can be clamped with the second clamping part; the first back side is close to the second back side and is provided with a third clamping part, the second back side is close to the first back side and is provided with a fourth clamping part, and the third clamping part can be clamped with the fourth clamping part.

Further, the first positioning hole and the second positioning hole are round holes or square holes. The first front side and the second front side are clamped, the first rear side and the second rear side are clamped, the first support bracket and the second support bracket are connected, and the strength of the two support brackets is further improved.

Further, the first connecting plate, the second connecting plate, the outer side supporting plate, the inner side supporting plate, the upper supporting plate and the lower supporting plate are square structures, the height of the first connecting plate is equal to the height of the outer side supporting plate, the inner side supporting plate and the upper supporting plate, and the height of the second connecting plate is equal to the height of the lower supporting plate. Preferably, the first connecting plate, the second connecting plate, the outer supporting plate, the inner supporting plate, the upper supporting plate and the lower supporting plate all adopt structures with the same size and the same shape; the whole packing box is more beautiful and more symmetrical.

The multilayer portable packing box is designed for packing fruit and vegetable agricultural products, multi-taste snack gift packages or a plurality of beverage cup paper boxes. The packing box uses the structure of insertion type, lock catch type and the like to fix each packing part so as to present three layers of portable gift box packing similar to briefcases. The package is a gift box package paper box which can be taken at any time and is convenient to carry, so that the side edge of the package box adopts a paperless package. The multilayer portable packing box is suitable for packing products in supermarkets and off-line gift shops and carrying out portable packing on milk tea and coffee drinks.

Drawings

Figure 1 is a block diagram of a multi-layered portable packaging box of the present utility model in a fully folded state.

Figure 2 is a block diagram of a multi-layered portable packaging box of the present utility model in a fully expanded state.

Figure 3 is a block diagram of a multi-layered portable packaging box according to the present utility model during a first folding process.

Figure 4 is a block diagram of a multi-layered portable packaging box according to the present utility model during a second folding process.

Fig. 5 is a block diagram of the first support layer of the present utility model in an expanded state.

Fig. 6 is a block diagram of a first carrier layer of the present utility model in a partially folded state.

Wherein, the graphic marks are described as follows:

11. a first support layer; 111. a supporting bottom plate; 112. a first support bracket; 113. a second support bracket; 12. a second support layer; 13. a third support layer; 21. a first connection plate; 22. a second connecting plate; 31. a first outer baffle; 311. a first transition plate; 312. an outer support plate; 313. an inner support plate; 32. a second outer baffle; 321. a cover plate; 322. a second transition plate; 323. an upper support plate; 324. a lower support plate; 4. a handle; 51. a first plug-in connection; 52. a second plug-in connection; 53. a slot; 54. a third plug-in connection; 55. a fourth plug-in connection; 56. a fifth plug-in portion; 57. a sixth plug-in portion; 58. a seventh plug-in portion; 611. a first support top; 612. a first front side; 613. a first rear side; 614. a first left side surface; 615. a first right side; 621. a second support top; 622. a second front side; 623. a second rear side; 624. a second left side surface; 625. a second right side; 71. a first positioning hole; 72. a second positioning hole; 81. a first clamping part; 82. a second clamping part; 83. a third clamping part; 84. and a fourth clamping part.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationship depicted in the drawings is for illustrative purposes only and is not to be construed as limiting the present patent.

The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there are orientations or positional relationships indicated by terms "upper", "lower", "left", "right", "long", "short", etc., based on the orientations or positional relationships shown in the drawings, this is merely for convenience in describing the present utility model and simplifying the description, and is not an indication or suggestion that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration and are not to be construed as limitations of the present patent, and that it is possible for those of ordinary skill in the art to understand the specific meaning of the terms described above according to specific circumstances.

The technical scheme of the utility model is further specifically described by the following specific embodiments with reference to the accompanying drawings:

example 1

As shown in fig. 1 to 6, in an embodiment 1 of a multi-layered portable packing box, the packing box is formed by folding a single cardboard, in a folded state, the packing box comprises a first supporting layer 11, a second supporting layer 12 and a third supporting layer 13 which are sequentially arranged from top to bottom, a first connecting plate 21 is arranged between the first supporting layer 11 and the second supporting layer 12, a second connecting plate 22 is arranged between the second supporting layer 12 and the third supporting layer 13, a first outer baffle 31, a second outer baffle 32 and a handle 4 are further included, the handle 4 is arranged at the top of the first outer baffle 31, the first outer baffle 31 is positioned above the second connecting plate 22, the bottom of the first outer baffle 31 is spliced with the second supporting layer 12, the second outer baffle 32 is oppositely arranged with the first outer baffle 31, the second outer baffle 32 is positioned outside the first connecting plate 21, the bottom of the second outer baffle 32 is connected with the third supporting layer 13, the second outer baffle 32 is spliced with the first connecting plate 21, and the second outer baffle 32 is positioned above the first supporting layer 11 and spliced with the handle 4. In a flat state, the first outer baffle 31, the first supporting layer 11, the first connecting plate 21, the second supporting layer 12, the second connecting plate 22, the third supporting layer 13 and the second outer baffle 32 are sequentially connected and integrally formed, and the portable packaging box with three parallel supporting layers can be obtained by folding the packaging box according to a certain folding direction through folding lines between the two adjacent components. The packing box of the utility model forms one outer elevation by utilizing the first outer baffle plate 31 and the second connecting plate 22 on one side of the three supporting layers, forms the other outer elevation by utilizing the second outer baffle plate 32 on the other side of the three supporting layers, and is hollowed-out at both ends of the three supporting layers, so that articles in the packing box can be directly seen from the outside of the packing box, and the placement condition of the articles is known.

Specifically, the first outer baffle 31 includes a first transition plate 311, an outer support plate 312, and an inner support plate 313 connected in sequence, where the end of the first transition plate 311 away from the outer support plate 312 is connected to the handle 4, a first plug-in connection 51 is provided at the connection between the outer support plate 312 and the inner support plate 313, and the second support layer 12 is provided with a second plug-in connection 52; preferably, the first plugging portion 51 may be a plug, the second plugging portion 52 may be a socket 53, and the plug is used to plug into the socket 53, in the folded state, the outer support plate 312 and the inner support plate 313 are folded and overlapped, the first transition plate 311 is obliquely arranged relative to the outer support plate 312, and the first plugging portion 51 and the second plugging portion 52 plug into each other, so that the first outer baffle 31 and the second support layer 12 are fixedly connected.

Further, the second outer baffle 32 includes a cover plate 321, a second transition plate 322, an upper support plate 323, and a lower support plate 324 connected in sequence, a slot 53 is provided at a connection position of the cover plate 321 and the second transition plate 322, the second transition plate 322 is opposite to the first transition plate 311, a third plugging portion 54 is provided at a connection position of the upper support plate 323 and the lower support plate 324, and a fourth plugging portion 55 is provided at the first connection plate 21; preferably, the third plugging portion 54 may be a plug-in buckle, and the fourth plugging portion 55 may be a jack, and is plugged and fixed with the jack by using the plug-in buckle; in the folded state, the handle 4 is inserted into the slot 53, the cover plate 321 is covered on the outer side of the first transition plate 311, the second transition plate 322 is obliquely arranged relative to the upper support plate 323, the upper support plate 323 is positioned on the outer side of the first connecting plate 21 and is inserted into and fixed with the fourth inserting part 55 through the third inserting part 54, the lower support plate 324 is arranged opposite to the second connecting plate 22, and the bottom of the lower support plate 324 is connected with the third supporting layer 13.

As a modification of the present embodiment, the first supporting layer 11, the second supporting layer 12, and the third supporting layer 13 all have the same structure. The first, second and third supporting layers 11, 12 and 13 of the same structure can make the whole package more beautiful and maximize the storage space of the package under the same volume.

Preferably, the first positioning hole 71 and the second positioning hole 72 are both round holes or square holes. The round hole or the square hole can be matched with the shape of the drink cup, and the drink cup can be firmly supported.

Example 2

The embodiment is an embodiment 2 of a multi-layer portable packing box, similar to embodiment 1, except that the first supporting layer 11 includes a supporting base plate 111, a first supporting bracket 112 and a second supporting bracket 113, the first supporting bracket 112 and the second supporting bracket 113 are respectively disposed at two sides of the supporting base plate 111, under the folding condition, one end of each of the first supporting bracket 112 and the second supporting bracket 113 is integrally formed with the supporting base plate 111, the other end is inserted into the supporting base plate 111, and the first supporting bracket 112 is also clamped with the second supporting bracket 113. The support base 111 is used to provide support for the first support bracket 112 and the second support bracket 113, and the first support bracket 112 and the second support bracket 113 are used to provide support for the articles. It is within the knowledge of the person skilled in the art that the number of support brackets may be increased to meet the placement requirements of the item, as may the number of support layers.

The first support bracket 112 includes a first supporting top 611 provided with a first positioning hole 71, a first front side 612, a first rear side 613, a first left side 614, and a first right side 615, the first left side 614 and the first right side 615 are respectively disposed on two sides of the first supporting top 611 and are integrally formed with the first supporting top 611, the first front side 612 and the first rear side 613 are respectively disposed on two sides of the first left side 614 and are integrally formed with the first left side 614, a fifth inserting portion 56 is disposed at the bottom of the first right side 615, a sixth inserting portion 57 is disposed on the supporting bottom 111, and in a folded state, the first front side 612, the first rear side 613, the first left side 614, and the first right side 615 provide support for the first supporting top 611 so that the first supporting top 611 is disposed parallel to the supporting bottom 111, and the fifth inserting portion 56 is inserted into the sixth inserting portion 57. In the unfolded state, the first front side 612 and the first rear side 613, the first left side 614 and the first right side 615 are respectively provided on four sides of the first support top 611, and the first support top 611 is connected to the first left side 614 and the first right side 615, but is not connected to the first front side 612 and the first rear side 613, and only in the folded state, the first support top 611 abuts against the tops of the first front side 612 and the first rear side 613.

Further, the second support bracket 113 includes a second supporting top 621 provided with a second positioning hole 72, a second front side 622, a second rear side 623, a second left side 624, and a second right side 625, the second left side 624 and the second right side 625 are respectively provided at two sides of the second supporting top 621, and are integrally formed with the second supporting top 621, the second front side 622 and the second rear side 623 are respectively provided at two sides of the second right side 625, and are integrally formed with the second right side 625, a seventh plugging portion 58 is provided at the bottom of the second left side 624, and in a folded state, the second front side 622, the second rear side 623, the second left side 624, and the second right side 625 provide support for the second supporting top 621 to enable the second supporting top 621 to be parallel to the supporting bottom plate 111, and the seventh plugging portion 58 is plugged with the sixth plugging portion 57; the first front side 612 is further engaged with the second front side 622, and the first rear side 613 is further engaged with the second rear side 623. The second support bracket 113 is similar in structure to the first support bracket 112, and the first support bracket 112 and the second support bracket 113 serve to provide support for the article.

Further, a first clamping portion 81 is disposed at the first front side 612 near the second front side 622, a second clamping portion 82 is disposed at the second front side 622 near the first front side 612, and the first clamping portion 81 can be clamped with the second clamping portion 82; the first back side 613 is provided with a third clamping portion 83 near the second back side 623, the second back side 623 is provided with a fourth clamping portion 84 near the first back side 613, and the third clamping portion 83 can be clamped with the fourth clamping portion 84. The first front side surface 612 is clamped with the second front side surface 622, and the first rear side surface 613 is clamped with the second rear side surface 623, so that the first support bracket 112 and the second support bracket 113 are clamped and fixed, and the supporting capacity and the deformation resistance of the first support bracket 112 and the second support bracket 113 are improved.

Example 3

The embodiment is an embodiment 3 of a multi-layered portable packing box, which is similar to embodiment 1, except that the first connecting plate 21, the second connecting plate 22, the outer supporting plate 312, the inner supporting plate 313, the upper supporting plate 323, and the lower supporting plate 324 are all square structures, and the height of the first connecting plate 21 is equal to the height of the outer supporting plate 312, the inner supporting plate 313, and the upper supporting plate 323, and the height of the second connecting plate 22 is equal to the height of the lower supporting plate 324.

Preferably, the first connecting plate 21, the second connecting plate 22, the outer support plate 312, the inner support plate 313, the upper support plate 323, and the lower support plate 324 are all of the same size and the same shape; the whole packing box is more beautiful and more symmetrical.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The utility model provides a portable packing carton of multilayer, its characterized in that, the packing carton is formed for single cardboard is folding, under the folded condition, the packing carton include from last first support layer (11), second support layer (12), third support layer (13) that down set gradually first support layer (11) with be equipped with first connecting plate (21) between second support layer (12), second support layer (12) with be equipped with second connecting plate (22) between third support layer (13), still include first outer baffle (31) and second outer baffle (32), handle (4) install in first outer baffle (31) top, first outer baffle (31) are located second connecting plate (22) top and first outer baffle (31) bottom and second support layer (12) are pegged graft, second outer baffle (32) are located second outer baffle (21) outside and second outer baffle (32) are located first outer baffle (31) opposite the setting, and second outer baffle (32) are located second outer baffle (32) and second outer baffle (13) are connected (32) and are located second outer baffle (32) and are pegged graft.

2. The multi-layer portable packaging box according to claim 1, wherein the first outer baffle (31) comprises a first transition plate (311), an outer support plate (312) and an inner support plate (313) which are sequentially connected, the first transition plate (311) is far away from the end of the outer support plate (312) and is connected with the handle (4), a first inserting connection portion (51) is arranged at the connecting position of the outer support plate (312) and the inner support plate (313), a second inserting connection portion (52) is arranged at the connecting position of the outer support plate (312) and the inner support plate (313), the outer support plate (312) and the inner support plate (313) are folded and overlapped in a folded state, the first transition plate (311) is obliquely arranged relative to the outer support plate (312), and the first inserting connection portion (51) and the second inserting connection portion (52) are inserted.

3. The multi-layer portable packaging box according to claim 2, wherein the second outer baffle (32) comprises a cover plate (321), a second transition plate (322), an upper support plate (323) and a lower support plate (324) which are sequentially connected, a slot (53) is formed at the joint of the cover plate (321) and the second transition plate (322), the second transition plate (322) and the first transition plate (311) are oppositely arranged, a third inserting part (54) is formed at the joint of the upper support plate (323) and the lower support plate (324), a fourth inserting part (55) is arranged on the first connection plate (21), in a folded state, the handle (4) is inserted into the slot (53), the cover plate (321) covers the outer side of the first transition plate (311), the second transition plate (322) is obliquely arranged relative to the upper support plate (323), the upper support plate (323) is positioned on the outer side of the first connection plate (21) and is fixedly inserted into the fourth inserting part (55) through the third inserting part (54), and the lower support plate (324) and the second connection plate (22) are oppositely arranged and are connected to the third support plate (13) and the bottom support plate (324) is obliquely arranged.

4. A multi-layered portable packaging box according to any one of claims 1 to 3, wherein the first (11), the second (12) and the third (13) support layers all have the same structure.

5. The multi-layered portable packaging box according to claim 4, wherein the first supporting layer (11) comprises a supporting base plate (111), a first supporting bracket (112) and a second supporting bracket (113), the first supporting bracket (112) and the second supporting bracket (113) are respectively arranged at two sides of the supporting base plate (111), one end of each of the first supporting bracket (112) and the second supporting bracket (113) is integrally formed with the supporting base plate (111) when the multi-layered portable packaging box is folded, the other end of each of the first supporting bracket and the second supporting bracket is inserted into the supporting base plate (111), and the first supporting bracket (112) is also clamped with the second supporting bracket (113).

6. The multi-layered portable packaging box according to claim 5, wherein the first support bracket (112) comprises a first support top (611) provided with a first positioning hole (71), a first front side (612), a first rear side (613), a first left side (614) and a first right side (615), the first left side (614) and the first right side (615) are respectively provided at two sides of the first support top (611) and are respectively integrally formed with the first support top (611), the first front side (612) and the first rear side (613) are respectively provided at two sides of the first left side (614) and are respectively integrally formed with the first left side (614), a fifth plug-in part (56) is provided at the bottom of the first right side (615), and the sixth plug-in part (57) is provided at the bottom of the support base plate (111), and in the folded state, the first front side (612), the first rear side (613), the first left side (614) and the first right side (615) are respectively provided with a support for the first support top (611) so that the first support top (611) is provided in parallel to the fifth plug-in part (57).

7. The multi-layered portable packaging box according to claim 6, wherein the second support bracket (113) comprises a second supporting top (621) provided with a second positioning hole (72), a second front side (622), a second rear side (623), a second left side (624) and a second right side (625), the second left side (624) and the second right side (625) are respectively arranged at two sides of the second supporting top (621) and are respectively integrally formed with the second supporting top (621), the second front side (622) and the second rear side (623) are respectively arranged at two sides of the second right side (625) and are respectively integrally formed with the second right side (625), a seventh plug-in part (58) is arranged at the bottom of the second left side (624), and in a folded state, the second front side (622), the second rear side (623), the second left side (624) and the second right side (625) provide support for the second supporting top (621) so that the second supporting top (621) and the supporting bottom plate (111) are respectively arranged in parallel to the seventh plug-in part (58); the first front side (612) is also clamped with the second front side (622), and the first rear side (613) is also clamped with the second rear side (623).

8. The multi-layer portable packaging box according to claim 7, wherein a first clamping part (81) is arranged at a position, close to the second front side (622), of the first front side (612), a second clamping part (82) is arranged at a position, close to the first front side (612), of the second front side (622), and the first clamping part (81) can be clamped with the second clamping part (82); the first rear side (613) is close to the second rear side (623) and is provided with a third clamping part (83), the second rear side (623) is close to the first rear side (613) and is provided with a fourth clamping part (84), and the third clamping part (83) can be clamped with the fourth clamping part (84).

9. A multi-layered portable packaging box according to claim 7, characterized in that the first positioning hole (71) and the second positioning hole (72) are round holes or square holes.

10. A multi-layered portable packing box according to claim 3, wherein the first connecting plate (21), the second connecting plate (22), the outer supporting plate (312), the inner supporting plate (313), the upper supporting plate (323) and the lower supporting plate (324) are square structures, the height of the first connecting plate (21) is equal to the height of the outer supporting plate (312), the height of the inner supporting plate (313) and the height of the upper supporting plate (323), and the height of the second connecting plate (22) is equal to the height of the lower supporting plate (324).