Foldable packaging box

Abstract

The utility model belongs to the technical field of packaging boxes, and particularly relates to a foldable packaging box. The foldable packaging box comprises a bottom plate; the four side plates are arranged in a surrounding manner; the lower end of each side plate is connected with the bottom plate through a hinge structure, so that each side plate can rotate between a horizontal state in which the side plate is folded to the bottom plate and a vertical state in which the side plate is vertical to the bottom plate; wherein the four side plates comprise two opposite first side plates and two opposite second side plates; the first side plate is provided with a blocking piece which is used for at least partially stretching into a path where the second side plate rotates inwards. The second side plate is provided with an unlocking device used for moving the blocking piece out of the path where the second side plate rotates inwards. In other words, according to the foldable packaging box, the side plates can be folded through cooperation of the unlocking devices and the blocking pieces, and therefore storage and transportation space can be saved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the packaging box technical field, concretely relates to a foldable packaging box. BACKGROUND

[0002] Before the product is transported, the product needs to be packaged to prevent damage to the product during transportation. Currently, packaging mainly uses packaging materials such as cartons and plastic boxes.

[0003] Cartons are prone to moisture, deformation, and damage during use and need to be replaced. Moreover, most of the replaced cartons become waste, and cartons are mostly made of wood fibers. The collection and processing of wood can have a certain impact on the environment, which is not conducive to environmental protection.

[0004] Plastic boxes are made of durable plastic materials and have better durability, waterproof and moisture-proof performance, and the advantage of being able to be reused. However, the existing plastic boxes cannot be folded for storage or transportation, and they require a larger area for storage or transportation. SUMMARY

[0005] The utility model aims to provide a foldable packaging box to solve the above technical problems.

[0006] The present application provides a foldable packaging box. The foldable packaging box comprises:

[0007] a bottom plate;

[0008] four side plates arranged in combination; the lower end of each side plate is connected to the bottom plate through a hinge structure, so that each side plate can rotate between a horizontal state folded on the bottom plate and a vertical state perpendicular to the bottom plate; wherein

[0009] the four side plates include two opposite first side plates and two opposite second side plates;

[0010] the first side plate is provided with a blocking piece for at least partially extending into the inward turning path of the second side plate;

[0011] the second side plate is provided with an unlocking device for moving the blocking piece out of the inward turning path of the second side plate.

[0012] In an embodiment of the present application, the unlocking device comprises:

[0013] two pushers; the outer end of each pusher is used to push the corresponding blocking piece;

[0014] a driving member connected to the inner end of the pusher, used to drive the pusher to move outward.

[0015] In an embodiment of the present application, the two ends of the driving member are respectively hinged to the inner end of the pushing member; wherein

[0016] In the unlocked state, the hinged part of the driving member and the pushing member forms a first obtuse angle;

[0017] In the unlocked state, the hinged part of the driving member and the pushing member forms a second obtuse angle or a straight angle, and the second obtuse angle is greater than the first obtuse angle.

[0018] In an embodiment of the present application, the second side plate is provided with a driving member limiting slot for accommodating the up-and-down movement of the driving member in the driving member limiting slot;

[0019] The two sides of the second side plate, at the two sides of the driving member limiting slot, are provided with pushing member limiting holes for the pushing member to pass through.

[0020] In an embodiment of the present application, the two side edges of the second side plate are provided with a blocking member accommodating slot;

[0021] In the unlocked state, the blocking member at least partially extends into the blocking member accommodating slot.

[0022] In an embodiment of the present application, the blocking member comprises:

[0023] An elastic sheet, one end of which is fixedly connected to the first side plate;

[0024] A stop block, provided on the other end of the elastic sheet, for extending into the path of the inward rotation of the second side plate.

[0025] In an embodiment of the present application, the lower surface of the stop block is at least partially formed as an inclined surface.

[0026] In an embodiment of the present application, the hinged structure comprises:

[0027] A hinged strip, provided at the lower end of the side plate; the two sides of the lower end of the hinged strip are provided with protruding portions;

[0028] An accommodating channel for accommodating the hinged strip, and which is open at the side facing the box and closed at the side facing outward; the two sides of the accommodating channel are provided with moving channels for the up-and-down movement of the protruding portions, and the upper end of the moving channel is provided with a limiting block.

[0029] In an embodiment of the present application, when the foldable packaging box is in the folded state, the four side plates are stacked one by one on the bottom plate.

[0030] In an embodiment of the present application, the two side edges of the first side plate are provided with a wrapping edge wrapped outside the second side plate;

[0031] The wrapping edge is provided with a plurality of accommodating holes;

[0032] The outer surface of the second side plate is provided with a fixing block inserted into the accommodating hole.

[0033] The utility model discloses the beneficial effect is:

[0034] Different from the prior art, the application provides a foldable packaging box. The foldable packaging box comprises a bottom plate, four side plates arranged in combination, and a hinge structure connecting the lower end of each side plate to the bottom plate, so that each side plate can rotate between a horizontal state folded on the bottom plate and a vertical state perpendicular to the bottom plate. The four side plates include two opposite first side plates and two opposite second side plates. The first side plate is provided with a blocking piece for at least partially extending into the inward turning path of the second side plate. The second side plate is provided with an unlocking device for moving the blocking piece out of the inward turning path of the second side plate. In other words, the foldable packaging box of the utility model can fold the side plate through the cooperation of the unlocking device and the blocking piece, thereby saving storage and transportation space.

[0035] Other features and advantages of the utility model will be set forth in the subsequent description, and some will become apparent from the description, or will be understood by those skilled in the art from the practice of the utility model. The purpose and other advantages of the utility model are realized and obtained by the structure specifically pointed out in the specification and the drawings.

[0036] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiment or the description of the prior art. Obviously, the drawings described below are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0038] Figure 1 is the opening schematic diagram of the foldable packaging box of a preferred embodiment of the utility model;

[0039] Figure 2 is the perspective view of the second side plate of a preferred embodiment of the utility model;

[0040] Figure 3 is the schematic diagram of the unlocking device of a preferred embodiment of the utility model;

[0041] Figure 4 is Figure 1 partial enlarged view in the middle;

[0042] Figure 5 is an explosion schematic view of the hinge structure of a preferred embodiment of the present application;

[0043] Figure 6 is a folding schematic view of two second side plates of a preferred embodiment of the present application;

[0044] Figure 7 is a folding schematic view of the foldable packaging box of a preferred embodiment of the present application.

[0045] In the drawings:

[0046] Bottom plate 1, side plate 2, first side plate 21, edge 211, containing hole 212, second side plate 22, driving piece limiting groove 221, pushing piece limiting hole 222, blocking piece containing groove 223, fixed block 224, hinge structure 3, hinge strip 31, protruding part 311, containing passage 32, moving passage 321, limiting block 322, blocking piece 4, elastic sheet 41, stop block 42, unlocking device 5, pushing piece 51, driving piece 52. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0048] The present application provides a foldable packaging box, which is described in detail below. It should be noted that the description order of the following embodiments is not used as a limitation on the preferred order of the embodiments of the present application. Moreover, the description of each embodiment in the following embodiments has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0049] Referring to Figure 1 In an embodiment, the foldable packaging box comprises: a bottom plate 1; four side plates 2 arranged in a closed manner; and the lower end of each side plate 2 is connected to the bottom plate 1 through a hinge structure 3, so that each side plate 2 can rotate between a horizontal state folded on the bottom plate 1 and a vertical state perpendicular to the bottom plate 1; wherein the four side plates 2 include two opposite first side plates 21 and two opposite second side plates 22; the first side plate 21 is provided with a blocking piece 4 for at least partially extending into the inward turning path of the second side plate 22; and the second side plate 22 is provided with an unlocking device 5 for moving the blocking piece 4 out of the inward turning path of the second side plate 22.

[0050] In the embodiment, the four side plates 2 can be folded in the box; by operating the unlocking device 5, the blocking piece 4 can be moved out of the path of the inward rotation of the second side plate 22, so that each side plate 2 can be folded inwardly to the position as shown in Figure 7 , thereby reducing the occupied space of the box.

[0051] The unlocking device 5 comprises two pushers 51, the outer ends of the pushers 51 are respectively used for pushing the corresponding blocking piece 4, and a driving member 52 is connected with the inner ends of the pushers 51 and used for driving the pushers 51 to move outwardly.

[0052] Specifically, referring to Figure 2 and Figure 3 , the two ends of the driving member 52 are respectively hinged with the inner ends of the pushers 51; wherein in the unlocking state, the hinged positions of the driving member 52 and the pushers 51 form a first obtuse angle, and in the unlocking state, the hinged positions of the driving member 52 and the pushers 51 form a second obtuse angle or a straight angle, and the second obtuse angle is greater than the first obtuse angle.

[0053] It can be understood that, as the angle between the hinged positions of the driving member 52 and the pushers 51 gradually increases, the overall length of the unlocking device 5 will increase, thereby pushing the blocking piece 4.

[0054] Optionally, the angles of the first obtuse angle and the second obtuse angle can be adjusted according to the length of the pusher 51, the moving distance of the driving member 52, the length of the pusher 51 required to be extended for unlocking, etc.

[0055] In some embodiments, the first obtuse angle and the second obtuse angle can both be upward, so that the driving member 52 needs to be lifted for unlocking; of course, the first obtuse angle and the second obtuse angle can also both be downward, so that the driving member 52 needs to be pressed for unlocking.

[0056] Referring to Figure 2 , in order to install and limit the unlocking device 5, optionally, the second side plate 22 is provided with a driving member limiting groove 221 for accommodating the driving member 52 to move up and down in the driving member limiting groove 221, and the second side plate 22 is provided with pusher limiting holes 222 on both sides of the driving member limiting groove 221 for the pushers 51 to pass through.

[0057] Referring to Figure 4 , the two side edges of the second side plate 22 are provided with blocking piece accommodating grooves 223; in the unlocking state, the blocking piece 4 at least partially extends into the blocking piece accommodating grooves 223, that is, the blocking piece 4 at least partially extends into the path of the inward rotation of the second side plate 22.

[0058] Further, the blocking piece 4 comprises: an elastic sheet 41, one end of which is fixedly connected with the first side plate 21; and a blocking block 42, which is arranged on the other end of the elastic sheet 41 and extends into the path of the inward rotation of the second side plate 22.

[0059] In the embodiment, the blocking block 42 is protruded from the inner side of the elastic sheet 41 and extends into the blocking piece accommodating groove 223.

[0060] Optionally, the lower surface of the blocking block 42 is at least partially inclined, and the end of the pushing piece 51 can be matched with the inclined surface. In the locked state, the elastic sheet 41 and the blocking block 42 can press the pushing piece 51, thereby preventing the unlocking device 5 from shaking; in the unlocked state, the pushing piece 51 can push the blocking block 42 out of the blocking piece accommodating groove 223.

[0061] Referring to Figure 5 Optionally, the hinge structure 3 comprises: a hinge strip 31 arranged at the lower end of the side plate 2; the lower end of the hinge strip 31 is provided with a protruding part 311 on both sides; and an accommodating channel 32 is arranged for accommodating the hinge strip 31, and the side of the accommodating channel 32 facing the inside of the box is open, and the side facing outward is closed; the two sides of the accommodating channel 32 are provided with a moving channel 321 for the upward and downward movement of the protruding part 311, and the upper end of the moving channel 321 is provided with a limiting block 322.

[0062] In the embodiment, since the four side plates 2 need to be stacked on the bottom plate 1, the hinge points of the side plates 2 and the bottom plate 1 need to be movable upward and downward, so that the four side plates 2 can be stacked at different heights. By arranging the moving channel 321 for the upward and downward movement of the protruding part 311, and the upper end of the moving channel 321 is provided with the limiting block 322 for preventing the protruding part 311 from being pulled out, the hinge points of the side plates 2 and the bottom plate 1 can be movable upward and downward.

[0063] Referring to Figure 6 and Figure 7 When the foldable packaging box is in the folded state, a second side plate 22 is stacked on the bottom plate 1, another second side plate 22 is stacked on the second side plate 22, and two first side plates 21 are stacked on the upper second side plate 22. In this way, the four side plates 2 are all horizontally folded on the bottom plate 1, thereby minimizing the space of the box body.

[0064] Referring to Figure 1 Optionally, the two side edges of the first side plate 21 are provided with a wrapping edge 211 wrapped outside the second side plate 22; the wrapping edge 211 is provided with a plurality of accommodating holes 212; and the outer surface of the second side plate 22 is provided with a fixing block 224 inserted into the accommodating hole 212. When the box body is in the open state, each fixing block 224 can be embedded in each accommodating hole 212, thereby further fixing the first side plate 21 and the second side plate 22.

[0065] It should be noted that each device (components not described in detail) selected in the present application is a general standard component or a component known to those skilled in the art, and its structure and principle can be known by the technical personnel through the technical manual or through the conventional experimental method.

[0066] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected.

[0067] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0068] Based on the above ideal embodiments according to the present application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the contents in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A collapsible packaging box, characterized in that, The foldable packaging box comprises: a bottom plate (1); four side plates (2) arranged in a closed manner; and the lower end of each side plate (2) is connected to the bottom plate (1) through a hinge structure (3), so that each side plate (2) can rotate between a horizontal state folded on the bottom plate (1) and a vertical state perpendicular to the bottom plate (1); wherein the four side plates (2) comprise two opposite first side plates (21) and two opposite second side plates (22); the first side plate (21) is provided with a blocking piece (4) for at least partially extending into the inward turning path of the second side plate (22); the second side plate (22) is provided with an unlocking device (5) for moving the blocking piece (4) out of the inward turning path of the second side plate (22).

2. The foldable packaging box according to claim 1, wherein the unlocking device (5) comprises: two pushing pieces (51); the outer end of each pushing piece (51) is used for pushing the corresponding blocking piece (4); a driving piece (52) connected to the inner end of the pushing piece (51) for driving the pushing piece (51) to move outward.

3. The foldable packaging box according to claim 2, wherein the two ends of the driving piece (52) are respectively hinged to the inner end of the pushing piece (51); wherein in the unlocked state, the hinge between the driving piece (52) and the pushing piece (51) forms a first obtuse angle; in the unlocked state, the hinge between the driving piece (52) and the pushing piece (51) forms a second obtuse angle or a straight angle, and the second obtuse angle is greater than the first obtuse angle.

4. The foldable packaging box according to claim 3, wherein the second side plate (22) is provided with a driving piece limiting groove (221) for accommodating the driving piece (52) to move up and down in the driving piece limiting groove (221); the second side plate (22) is provided with a pushing piece limiting hole (222) on both sides of the driving piece limiting groove (221) for the pushing piece (51) to pass through.

5. The foldable packaging box according to claim 4, wherein the two side edges of the second side plate (22) are provided with a blocking piece accommodating groove (223); in the unlocked state, the blocking piece (4) at least partially extends into the blocking piece accommodating groove (223).

6. The foldable packaging box according to claim 1, wherein the blocking piece (4) comprises: a resilient sheet (41) having one end fixedly connected to the first side plate (21); a stop block (42) provided on the other end of the resilient sheet (41) for extending into the inward turning path of the second side plate (22).

7. The foldable packaging box according to claim 6, wherein the lower surface of the stop block (42) is at least partially inclined.

8. The foldable packaging box according to claim 1, wherein the hinge structure (3) comprises: a hinge strip (31) provided at the lower end of the side plate (2); the lower end of the hinge strip (31) is provided with a protrusion (311) on both sides. The accommodating channel (32) is used for accommodating the hinged strip (31) and is open at the side towards the inside of the box and closed at the side towards the outside. The two sides of the accommodating channel (32) are provided with moving channels (321) for the up and down movement of the protruding parts (311), and the upper ends of the moving channels (321) are provided with limiting blocks (322).

9. The foldable packaging box according to claim 1, characterized in that, When the foldable packaging box is in the folded state, a second side plate (22) is stacked on the bottom plate (1), another second side plate (22) is stacked on the second side plate (22), and two first side plates (21) are stacked on the upper second side plate (22).

10. The foldable packaging box according to claim 1, characterized in that, The two side edges of the first side plate (21) are provided with wrapping edges (211) wrapped outside the second side plate (22); The wrapping edges (211) are provided with a plurality of accommodating holes (212); The outer surface of the second side plate (22) is provided with fixing blocks (224) inserted into the accommodating holes (212).

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