CN210734748U - Packing box and combination box - Google Patents

Abstract

The utility model relates to the technical field of box bodies, and provides a packing box and a combined box, the packing box comprises a plurality of box plates, the adjacent box plates can be folded to form a box main body of the packing box, at least part of the end parts of the box plates are provided with extension plates, and the extension plates at the two ends of the box main body respectively form side plates of the packing box; in a flat state, the box boards on two outer sides can be folded relative to the box boards on the inner sides to form a non-closed box main body, or the box boards are sequentially folded to form a closed box main body. Obtain two kinds of different volumes through the folding mode of difference, the packing box structure of shape difference for the packing box of same kind of specification can fold into two kinds of different forming states under the expansion state like this, have that the forming state is many, extensive applicability, the advantage of convenient storage and management.

Description

Packing box and combination box

Technical Field

The utility model belongs to the technical field of the box technique and specifically relates to a packing box and combination box are related to.

Background

At present, products in various industries, relating to packaging and other materials, are required to be environment-friendly and recycled. Wherein, the recyclable packing box is widely used in various industries. The current recyclable packing box has to be customized into various specifications according to the use requirements, the packing box of each specification only has a single forming state and a single use state, the use range is limited, and meanwhile, the recyclable packing boxes of various specifications are required to be classified and managed, so that a large amount of manpower and material resources are consumed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a packing box aims at solving the single technical problem of circulated packing box forming state among the prior art.

In order to achieve the above object, the utility model adopts the following technical scheme: a packing box comprises a plurality of box plates, wherein adjacent box plates can be folded to form a box main body of the packing box, at least part of the end parts of the box plates are provided with extension plates, and the extension plates at the two ends of the box main body respectively form side plates of the packing box; in a flat state, the box boards on two outer sides can be folded relative to the box boards on the inner sides to form a non-closed box main body, or the box boards are sequentially folded to form a closed box main body.

Preferably: the box plate is at least provided with four box plates, namely a first box plate, a second box plate, a third box plate and a fourth box plate; the same end of the first box plate, the second box plate, the third box plate and the fourth box plate is at least connected with two extension plates.

Preferably: the first box board and the fourth box board are folded relative to the second box board and the third box board to form the non-closed box main body, and at least two extension boards are connected side by side at the same end of the non-closed box main body to form the side boards;

or, the first box panel, the second box panel, the third box panel and the fourth box panel are folded in sequence to form the closed box main body, and at the same end of the closed box main body, the extension panels are overlapped to form the side panels.

Preferably: in a tiled state, the extension plates at the two ends of the four box plates are symmetrically arranged on the basis of the central axis of the box plate, and the central axis is parallel to the arrangement direction of the extension plates.

Preferably: the two ends of the first box plate, the second box plate, the third box plate and the fourth box plate extend independently and are provided with foldable extension plates;

in a folded condition, the extension panels to which the first and second box panels are connected overlap to form a first side panel, the extension panels to which the third and fourth box panels are connected overlap to form a second side panel, and the first and second side panels are connected to form side panels of the non-closed box body;

or the extension plates connected with the first box plate, the second box plate, the third box plate and the fourth box plate are overlapped and connected to form the side plate of the closed box main body.

Preferably: the extension plate that first boxboard and fourth boxboard are connected corresponds and is provided with the cooperation connecting piece, and/or second boxboard and third boxboard are connected the extension plate corresponds and is provided with the cooperation connecting piece.

Preferably: folding lines are arranged between the adjacent box boards and between the box boards and the extension boards, and the width of each folding line is not less than two times of the thickness of the box boards or the sum of the thicknesses of the box boards and the extension boards.

Preferably: the extension board is square, the folding lines are arranged on the extension board along the diagonal line of the extension board, and the extension directions of the folding lines of the extension board positioned on the same side of each box board are the same.

Preferably: the folding lines comprise two parallel creasing grooves, the cross sections of the two creasing grooves are W-shaped, each creasing groove comprises two crossed side walls, and the central distance between the two creasing grooves is twice the thickness of the box board or the sum of the thicknesses of the box board and the extension board.

Preferably: one of the first box board and the fourth box board is connected with a foldable attaching board, and the attaching board is overlapped and matched with the other one of the first box board and the fourth box board in a box folding state.

Another object of the utility model is to provide a combination box, including two packing boxes as above, the packing box includes non-closed case main part with the curb plate, two the mutual lock of packing box forms combination box.

The utility model has the advantages that:

the utility model provides a pair of packing box, can fold into two kinds of forming state of non-closed case main part and closed case main part through polylith boxboard, and cooperate the extension plate to form the curb plate of packing box, can obtain to have open-ended first packing box structure and confined second packing box structure, two kinds of packing box volumes are different, the shape is different, make like this can fold into two kinds of different forming state for the packing box of same kind of specification under the expansion state, can be used for the article packing of different sizes and shape, under idle state, can be with same kind of specification storage, the transportation, only have a forming state with the packing box of a specification among the prior art and compare, it is many to have the forming state, wide applicability, the advantage of convenient storage and management.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is an expanded plan view schematically illustrating a packing box according to an embodiment of the present invention;

fig. 2 is a diagram showing a first forming state of the packing box provided by the embodiment of the utility model;

fig. 3 is a schematic view of a second forming state of the packing box provided by the embodiment of the utility model;

fig. 4 is a schematic view of a crease groove structure of a packing box according to an embodiment of the present invention;

fig. 5 is a schematic view of a state that the packing box provided by the embodiment of the present invention is folded at the crease groove;

fig. 6 is a schematic view of a folded extending plate of the packing box according to the embodiment of the present invention;

fig. 7 is a schematic view of a state that an extension board of the packing box provided by the embodiment of the present invention is folded by a folding slot;

fig. 8 is an exploded schematic view of a combination box according to an embodiment of the present invention.

Reference numerals: 1. a boxboard; 11. a first box board; 12. a second box board; 13. a third box board; 14. a fourth deck board; 15. attaching a plate; 2. an extension plate; 21. a first square plate; 22. a second square plate; 23. a third square plate; 24. a fourth square plate; 3. a connecting member; 31. a first connecting member; 32. a second connecting member; 33. a third connecting member; 34. a fourth connecting member; 35. a fifth connecting member; 36. a sixth connecting member; 4. and (4) indenting the groove.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1 to fig. 3, a package box according to an embodiment of the present invention is now described. The packing box can be used as a packing logistics box and also can be used as a household article containing box, and the specific use scene can be selected according to different customers.

This packing box includes: the packaging box comprises a plurality of box plates 1, wherein adjacent box plates 1 can be folded to form a box main body of the packaging box, the end parts of at least part of the box plates 1 are provided with extension plates 2, and the extension plates 2 at the two ends of the box main body respectively form side plates of the packaging box; in the flat state, the two outer box boards 1 can be folded relative to the inner box board 1 to form a non-closed box main body, or the box boards 1 are sequentially folded to form a closed box main body. Wherein, the both ends cooperation of non-closed case main part has the curb plate in order to form the first packing box structure that has the open-ended, and the both ends of closed case main part have the curb plate in order to form confined second packing box structure with the cooperation, and the volume of first packing box structure and second packing box structure is different, and the shape is different.

The embodiment of the utility model provides a packing box, can fold into two kinds of forming state of non-closed case main part and closed case main part through polylith boxboard 1, and cooperate the curb plate that extends 2 formation packing boxs, can obtain having open-ended first packing box structure and confined second packing box structure, two kinds of packing box volumes are different, the shape is different, make like this can fold into two kinds of different forming state for the packing box of same kind of specification under the expansion state, can be used for the article packing of unidimensional and shape, under idle state, can be with same kind of specification storage, the transportation, only have a forming state with the packing box of a specification among the prior art and compare, it is many to have the forming state, wide applicability, the advantage of convenient storage and management.

As shown in fig. 1 and 3, in one embodiment, the box board 1 is provided with at least four, respectively a first box board 11, a second box board 12, a third box board 13 and a fourth box board 14; the same end of the first box plate 11, the second box plate 12, the third box plate 13 and the fourth box plate 14 is at least connected with two extension plates 2; two extension plates 2 at the same end of the four box plates 1 are arranged at intervals of one box plate 1 or two box plates 1, or the two extension plates 2 are respectively arranged on the two box plates 1 at the inner side. In the folded condition, the two extension panels 2 at the same end of the four panels 1 are connected side by side to form the side panels of the non-enclosed box body, or the two extension panels 2 at the same end of the four panels 1 are overlapped to form the side panels of the enclosed box body. The extending plates 2 at two ends of the four box plates 1 are symmetrically arranged based on the central axis of the box plates 1, and the central axis is parallel to the arrangement direction of the extending plates 2. Or, the extension plates 2 at the two ends of the four boxboards 1 are arranged in a staggered manner based on the central axis of the boxboard 1, or the two extension plates 2 are symmetrically arranged, and the other two extension plates 2 are arranged in a staggered manner.

As shown in fig. 1 and 3, in one embodiment, the foldable extension boards 2 are independently extended from two ends of the first, second, third and fourth box boards 11, 12, 13 and 14. The following examples are described with respect to the case plates 1 each having an extension plate 2 at each end thereof.

In the folded condition, the extension panels 2 connected to the first and second panels 11, 12 overlap to form a first side panel, the extension panels 2 connected to the third and fourth panels 13, 14 overlap to form a second side panel, and the first and second side panels are connected to each other to form side panels of the non-closed box body; alternatively, the extension panels 2 to which the first, second, third and fourth box panels 11, 12, 13 and 14 are connected are all overlapped and connected to form side panels of the closed box body.

Specifically, as shown in fig. 1 and fig. 2, two box boards 1 located at the outer side are folded relative to two box boards 1 located at the inner side in a flat state, and two extension boards 2 located at the outer side are respectively overlapped and connected with adjacent extension boards 2 in a matching manner, so as to form a first packaging box structure; as shown in fig. 1 and 3, the four box boards 1 are folded in sequence, and the four extending boards 2 located at the same side of the four box boards 1 are all overlapped to form a second packing box structure.

Specifically, the four box boards 1 arranged side by side have the same size, in this embodiment, the box board 1 is a rectangular board, and in other embodiments, the box board 1 is a square board.

As shown in fig. 1, in the present embodiment, each extension plate 2 is a square plate. In other embodiments, the two extension boards 2 at the outer side are square in shape in the flat state. Or, in a flat state, the two extension plates 2 positioned at the inner side are square; alternatively, in a flat state, the two extension plates 2 arranged at intervals have a square shape.

In the embodiment, each extension board 2 is provided with a connecting piece 3, and the connecting pieces 3 on each extension board 2 can be connected with each other, so that the extension boards 2 are connected side by side or overlapped together to form a side board of the packing box.

Specifically, in a preferred embodiment, the extension plate 2 of the first box plate 11 is a first square plate 21, the extension plate 2 of the second box plate 12 is a second square plate 22, the extension plate 2 of the third box plate 13 is a third square plate 23, and the extension plate 2 of the fourth box plate 14 is a fourth square plate 24. The connecting element 3 on the first square plate 21 is a first connecting element 31, the connecting element 3 on the second square plate 22 is a second connecting element 32, the connecting element 3 on the third square plate 23 is a third connecting element 33, and the connecting element 3 on the fourth square plate 24 is a fourth connecting element 34.

Specifically, in another embodiment, the extension plate 2 on the first box plate 11 is a first square plate 21, the extension plate 2 on the second box plate 12 is a triangular plate, the extension plate 2 on the third box plate 13 is a triangular plate, and the extension plate on the fourth box plate 14 is a fourth square plate 24.

Specifically, in another embodiment, the extension plate 2 on the first box plate 11 is a triangular plate, the extension plate 2 on the second box plate 12 is a second square plate 22, the extension plate 2 on the third box plate 13 is a third square plate 23, and the extension plate on the fourth box plate 14 is a triangular plate.

The arrangement of the extension panels 2 according to the above embodiments can form a complete side panel structure in both the first and second container structures.

The following embodiments are described in terms of the extension plates 2 being square plates, but the following description is not limited to the extension plates 2 being square plates.

Specifically, as shown in fig. 2, when the second box board 12 and the third box board 13 are bottom boards, the first box board 11 is perpendicular to the second box board 12, the fourth box board 14 is perpendicular to the third box board 13, the first square board 21 and the second square board 22 are connected and overlapped through the first connecting piece 31 and the second connecting piece 32, and the third square board 23 and the fourth square board 24 are connected and overlapped through the third connecting piece 33 and the fourth connecting piece 34, so as to form a first packaging box structure with an opening. The two first packaging box structures are mutually buckled, and a sealed combined box body can be obtained.

Specifically, as shown in fig. 3, when the first box board 11, the second box board 12, the third box board 13 and the fourth box board 14 are sequentially connected end to end, and the first box board 11 is parallel to the third box board 13, the second box board 12 is parallel to the fourth box board 14, the first box board 11 is perpendicular to the second box board 12, and the first square board 21, the second square board 22, the third square board 23 and the fourth square board 24 are overlapped together to form a side board, so that a first closed packaging box structure is enclosed.

As shown in fig. 2, in the first packaging box structure, it is preferable that the first square plate 21 is superimposed on the outer side of the second square plate 22, and the fourth square plate 24 is superimposed on the outer side of the third square plate 23, so that the left and right sides of the entire side plates are sealed to increase the box strength.

As shown in fig. 3, in the second packaging box structure, the stacking order of the first square plate 21, the second square plate 22, the third square plate 23, and the fourth square plate 24 may be arbitrary, the first square plate 21 may be connected to the second square plate 22 as a whole, the third square plate 23 may be connected to the fourth square plate 24 as a whole, and these two whole bodies may be connected again, the first square plate 21, the second square plate 22, the third square plate 23, and the fourth square plate 24 may be stacked in order, the first square plate 21 may be connected to the fourth square plate 14, and the second square plate 22 may be connected to the third square plate 23. It is preferable that the first square plate 21 or the fourth square plate 24 is overlapped on the outermost side to increase the strength of the case to the maximum extent.

Preferably: in this embodiment, as shown in fig. 1, each of the connecting members 3 is a hook and loop fastener, and two hook and loop fasteners of two adjacent square plates 2 can be adhered to each other. Specifically, the first connecting member 31 is a hook and loop fastener, the second connecting member 32 is a hook and loop fastener, the third connecting member 33 is a hook and loop fastener, and the fourth connecting member 34 is a hook and loop fastener. As shown in fig. 1 and 2, the first connector 31 is disposed inside the first square plate 21, the second connector 32 is disposed outside the second square plate 22, the third connector 33 is disposed inside the third square plate 23, and the fourth connector 34 is disposed outside the fourth square plate 24. As shown in fig. 2, in the first packing case structure, the first link 31 is bonded to the second link 32, and the third link 33 is bonded to the fourth link 34. As shown in fig. 3, in the second package case structure, the first link 31 is bonded to the second link 32 and the third link 33 is bonded to the fourth link 34, or the first link 31 is bonded to the fourth link 34 and the second link 32 is bonded to the third link 33. Wherein, the size of magic subsides is selected according to the operation requirement of packing box, and when its structural strength required is lower, the magic is pasted and is adopted comparatively less, and when its structural strength required is higher, the size of magic subsides can be the same with the size of square board.

In other embodiments, as shown in fig. 2, the two outer box panels 1 are provided with a corresponding mating connector 3 and/or the two inner extension panels 2 are provided with a corresponding mating connector 3, the mating connectors 3 being used to seal the gap in the middle of the side panels in the first packing configuration. Specifically, in the first packaging box structure, the first connecting piece 31 and the fourth connecting piece 33 are further connected through the connecting piece 3, or the second connecting piece 32 and the third connecting piece 33 are further connected through the connecting piece 3, and the gap between the overlapping portion of the first square plate 21 and the second square plate 22 and the overlapping portion of the third square plate 23 and the fourth square plate 24 is blocked, so that the structural strength of the first packaging box structure is ensured.

In other embodiments, the first connector 31, the second connector 32, the third connector 33, and the fourth connector 34 each include: the hair side magic subsides and the hook side magic subsides of this connecting piece 3, the hair side magic subsides and the hook side magic subsides of this connecting piece 3 all set up in same one side of each square board 2, and the hair side magic subsides of this connecting piece 3 are used for being connected with the hook side magic subsides of adjacent connecting piece 3, and the hook side magic subsides of this connecting piece 3 are used for pasting with the hair side magic of adjacent connecting piece 3 and are connected.

In other embodiments, the first square plate 21, the second square plate 22, the third square plate 23, and the fourth square plate 24 are provided with connectors 3 on both inner and outer sides thereof to facilitate connection of the four extension plates 2 in any form.

In other embodiments, the first connector 31, the second connector 32, the third connector 33, and the fourth connector 34 may form a side plate by magnetic connection. Specifically, each connecting piece 3 is a magnet, and two magnets on two adjacent square plates 2 can attract each other. For example, the magnets on the first square plate 21 and the second square plate 22 attract each other, and the magnets on the third square plate 23 and the fourth square plate 24 attract each other. Make the curb plate stable in structure of first packing box structure, be difficult for breaking up. Further, the magnets on the first square plate 21 and the fourth square plate 24 are attracted to each other, and the magnets on the second square plate 22 and the third square plate 23 are attracted to each other. The structure of the second packaging box is more stable.

Specifically, the first connecting part 31 of the first square plate 21 is a magnet, the second connecting part 32 of the second square plate 22 is an iron block, the third connecting part 33 of the third square plate 23 is a magnet, and the fourth connecting part 34 of the fourth square plate 24 is an iron block. The first square plate 21, the second square plate 22, the third square plate 23 and the fourth square plate 24 can be attracted in turn, and the stability of the side plates is enhanced.

In other embodiments, each connecting member 3 is a snap fastener, and two snap fasteners on two adjacent square plates 2 are fastened to each other, wherein the snap fasteners are snap fasteners including a male snap and a female snap. For example, the first connecting member 31 of the first square plate 21 is a male buckle, the second connecting member 32 of the second square plate 22 is a female buckle, the third connecting member 33 of the third square plate 23 is a male buckle, and the fourth connecting member 34 of the fourth square plate 24 is a female buckle.

In other embodiments, each connector 3 is a zipper, the two zippers on two adjacent square plates 2 can be zipped, and the zipper on each square plate 2 is half of a conventional zipper. For example, conventional zippers include: left and right zippers, then the first connector 31 on the first square plate 21 is the left zipper, the second connector 32 on the second square plate 22 is the right zipper, the third connector 33 on the third square plate 23 is the left zipper, and the fourth connector 34 on the fourth square plate 24 is the right zipper. For example, as shown in fig. 1, in the unfolded state, when the left zipper on the first square plate 21 is disposed at the end thereof away from the first box plate 1, the right zipper on the second square plate 22 is disposed at the end thereof away from the first square plate 21, wherein the length directions of the left and right zippers are perpendicular in the unfolded state. As shown in fig. 2, in the molding state, the left and right zippers can be zipped to overlap the first and second square panels 21 and 22.

Of course, in other embodiments, when the packaging box is used as an express packaging box, a box sealing tape can be bonded on the outer surface of the packaging box.

As shown in fig. 1, 4 and 5, in the present embodiment, folding lines are provided between adjacent box panels 1 and between the box panel 1 and the extension panel 2, and the width of the folding lines is not less than twice the thickness of the box panel 1 or the sum of the thicknesses of the box panel 1 and the extension panel 2.

The folding line between each extension board 2 and the box board 1 connected with the extension board comprises two parallel crease grooves 4, and the folding line between two adjacent box boards 1 also comprises two parallel crease grooves 4. The cross section of each mark folding groove 4 is V-shaped and is provided with two side walls, the two side walls are intersected at the long edge to form a V-shaped groove, and the cross sections of the two mark folding grooves 4 are W-shaped. More specifically, the included angle between the two side walls of each creased groove 4 is 90 °, and the center-to-center distance between the two creased grooves 4 is the sum of the thicknesses of two box boards 1, or the center-to-center distance between the two creased grooves 4 is the sum of the thicknesses of one box board 1 and one square board 2 (i.e. the distance between the two vertex angles of the two creased grooves 4 is the sum of the thicknesses of two box boards 1, or the sum of the thicknesses of one box board 1 and one extension board). Make each boxboard 1 like this, and during folding between square board 2 and the boxboard 1 for closely laminating between boxboard 1 and the boxboard 1, closely laminating between square board 2 and the boxboard 1, thereby can not have the hunch-up phenomenon.

In other embodiments, the crease slots 4 can be provided in one, or three, strips. Wherein the creasing groove 4 is formed by pressing a line by a right-angle cutter of a bending machine.

Preferably, as shown in fig. 1, a foldable attachment plate 15 is disposed on one of the outer box boards 1, specifically, an attachment plate 15 is disposed on one side of the first box board 11 away from the second box board 12, and a crease groove 4 is disposed between the attachment plate 15 and the first box board 11, as shown in fig. 3, in a molding state, the attachment plate 15 is disposed on an inner side of the fourth box board 14, of course, in other embodiments, the attachment plate 15 may be disposed on an outer side of the fourth box board 14, so that no gap occurs between the first box board 11 and the fourth box board 14 in the first packaging box structure. Alternatively, the attachment panel 15 is provided on the fourth box panel 14.

As shown in fig. 1, the attachment plate 15 is connected to the other outer box panel 1 by a connecting member 3. Specifically, as shown in fig. 2, a fifth connecting member 35 is provided on an outer side of the attachment plate 15, and a sixth connecting member 36 is provided on an inner side of the fourth box board 14, wherein the attachment plate 15 is located on the inner side of the fourth box board 14, and the fifth connecting member 35 and the sixth connecting member 36 are connected to each other. Or, the inner side of the joint plate 15 is provided with a fifth connecting piece 35, the outer side of the fourth box plate 14 is provided with a sixth connecting piece 36, and the joint plate 15 is located on the outer side of the fourth box plate 14 and connects the fifth connecting piece 35 with the sixth connecting piece 36.

Preferably, in the present embodiment, each of the box boards 1 and the square boards 2 is made of a PP hollow board material (a PP hollow board (polypropylene hollow board) is formed by extruding a polypropylene raw material and a polyethylene raw material through a hollow board production line, and the cross section of the board material is in a lattice shape, so that the board material is also called a lattice hollow board), and in other embodiments, each of the box boards 1 and the square boards 2 is made of a paperboard or a plastic board. Or in other embodiments, each box panel 1 and square panel 2 comprises: the hard plates and the cloth block wrapping the hard plates are separated by a seam between two adjacent hard plates, and the hard plates can be plastic plates or metal plates.

In this embodiment, the connecting member 3 is fixed on the box board 1 and the square board 2 by means of stitches, and in other embodiments, the connecting member 3 may also be fixed on the box board 1 or the square board 2 by means of gluing, embedding, or hot rivet welding.

As shown in fig. 1 and 6, the packing box can be folded after being unfolded, for example, the first box board 11 is overlapped with the second box board 12, the third box board 13 is overlapped with the fourth box board 14, the first square board 21 and the second square board 22 are overlapped with the first box board 11, the third square board 23 and the fourth square board 24 are overlapped with the third box board 13, and the thickness of the folded box body is four times of the thickness of a single box board 1, so that the storage space of the packing box can be effectively reduced. Of course, in the case that one of the crease lines 4 between the box boards 1 is enough in number, or when the crease line 4 between two box boards 1 is made of elastic or soft material, the packing box can also be overlapped to have the size of the first box board 11 and the thickness of the first box board 11 is the sum of the thicknesses of the eight box boards 1.

Further, as shown in fig. 1, each square plate 2 is provided with a corrugated groove 4 along a diagonal line thereof. Specifically, as shown in fig. 1, the crease lines 4 on each square plate 2 are oriented uniformly when the box is unfolded. When crease groove 4 orientation was unanimous, in first packing box structure, crease groove 4 of two adjacent superimposed square plates 2 intercrossed after the stack, can avoid the stack rear direction unanimous to lead to the curb plate easily to sink in or the uplift in crease groove 4 department, guarantees the planarization of curb plate. In other embodiments, the orientations of the crease grooves 4 on the first square plate 21 and the second square plate 22 are consistent, the orientations of the crease grooves 4 on the third square plate 23 and the fourth square plate 24 are consistent, and the orientations of the crease grooves 4 on the second square plate 22 and the third square plate 23 are arranged crosswise; or two adjacent creasing grooves 4 on the four square plates 2 are respectively arranged in a crossing way. Meanwhile, the crease line grooves 4 on the square plates 2 facilitate the folding of the square plates 2. As shown in fig. 7, after the square plate 2 is folded by the creased groove 4, the thickness of the folded box body at the square plate 2 is 6 times of the thickness of the single box plate 1.

Further, since each square plate is provided with the crease groove 4 along the diagonal line thereof, the connecting member 3 of each square plate needs to be disposed avoiding the crease groove 4.

In this embodiment, as shown in fig. 8, there is further provided a combination box, which includes two first containers as described above, wherein the two first containers are different in size, so that the two first containers can be fastened to each other to form a closed third container structure. This combination box can be formed by the combination of two first packing box structures of variation in size, and two second packing box structures of variation in size still have two kinds of different box structures separately, just so can obtain five kinds of different forming states through the combination of two packing boxes, has made things convenient for use and convenient management greatly like this.

According to the packing box and the combined box provided by the embodiment of the utility model, when the single packing box is not used, the packing box can be folded and stacked, the occupied space is small, and the recovery and the management of the packing box are convenient; when in use, the forming die has different forming states, and is convenient to select according to different requirements; the packing box can be repeatedly used, and the cost is saved.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (11)

1. A packing box is characterized by comprising a plurality of box plates, wherein adjacent box plates can be folded to form a box main body of the packing box, at least part of the end parts of the box plates are provided with extension plates, and the extension plates at the two ends of the box main body respectively form side plates of the packing box; in a flat state, the box boards on two outer sides can be folded relative to the box boards on the inner sides to form a non-closed box main body, or the box boards are sequentially folded to form a closed box main body.

2. The packaging case according to claim 1, wherein: the box plate is at least provided with four box plates, namely a first box plate, a second box plate, a third box plate and a fourth box plate; the same end of the first box plate, the second box plate, the third box plate and the fourth box plate is at least connected with two extension plates.

3. The packaging case according to claim 2, wherein: the first box board and the fourth box board are folded relative to the second box board and the third box board to form the non-closed box main body, and at least two extension boards are connected side by side at the same end of the non-closed box main body to form the side boards;

or, the first box panel, the second box panel, the third box panel and the fourth box panel are folded in sequence to form the closed box main body, and at the same end of the closed box main body, the extension panels are overlapped to form the side panels.

4. The packaging case according to claim 2, wherein: in a tiled state, the extension plates at the two ends of the four box plates are symmetrically arranged on the basis of the central axis of the box plate, and the central axis is parallel to the arrangement direction of the extension plates.

5. The packaging case according to claim 4, wherein: the two ends of the first box plate, the second box plate, the third box plate and the fourth box plate extend independently and are provided with foldable extension plates;

in a folded condition, the extension panels to which the first and second box panels are connected overlap to form a first side panel, the extension panels to which the third and fourth box panels are connected overlap to form a second side panel, and the first and second side panels are connected to form side panels of the non-closed box body;

or the extension plates connected with the first box plate, the second box plate, the third box plate and the fourth box plate are overlapped and connected to form the side plate of the closed box main body.

6. The packaging case according to claim 5, wherein: the extension plate that first boxboard and fourth boxboard are connected corresponds and is provided with the cooperation connecting piece, and/or second boxboard and third boxboard are connected the extension plate corresponds and is provided with the cooperation connecting piece.

7. The packaging case according to claim 1, wherein: folding lines are arranged between the adjacent box boards and between the box boards and the extension boards, and the width of each folding line is not less than two times of the thickness of the box boards or the sum of the thicknesses of the box boards and the extension boards.

8. The packaging case according to claim 7, wherein: the extension board is square, the folding lines are arranged on the extension board along the diagonal line of the extension board, and the extension directions of the folding lines of the extension board positioned on the same side of each box board are the same.

9. The packaging box according to claim 7 or 8, wherein: the folding lines comprise two parallel creasing grooves, the cross sections of the two creasing grooves are W-shaped, each creasing groove comprises two crossed side walls, and the central distance between the two creasing grooves is twice the thickness of the box board or the sum of the thicknesses of the box board and the extension board.

10. The packaging case according to claim 2, wherein: one of the first box board and the fourth box board is connected with a foldable attaching board, and the attaching board is overlapped and matched with the other one of the first box board and the fourth box board in a box folding state.

11. A combination box comprising two containers as claimed in any one of claims 1 to 10, said containers including said non-closed box body and said side panels, said containers being snap-fitted to one another to form said combination box.

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