Packaging box

Abstract

A packaging box comprises a box body and a cover body, one end of the cover body is rotationally connected with the box body, the other end of the cover body is detachably connected with the box body, the cover body is composed of a plurality of folded plates, every two adjacent folded plates are rotationally connected, and the folded plates are of various types; during use, the end, rotationally connected with the box body, of the cover body serves as a rotating part, the end, detachably connected with the box body, of the cover body serves as a connecting part, the folding plates are sequentially rotated from the connecting part to the rotating part, and then the box body can be gradually opened, so that the box body can be partially opened, and the use is more convenient under the condition that a plurality of articles exist in the box body and only individual articles need to be taken out; due to the fact that the rotating radius of the folded plate is obviously smaller than that of the cover body, the box body can still be opened and closed thoroughly in a narrow space, and excessive space does not need to be reserved near the box body. In general, by using the packaging box, the box body can be partially opened, and the space needed in the opening process of the cover body and the space occupied after the cover body is opened are reduced.

Description

Technical Field

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

[0002] As the name suggests, a packaging box is a box used to package products. It can be classified by material, such as: paper box, iron box, wooden box, cloth box, leather box, acrylic box, corrugated packaging box, PVC box, etc.; it can also be classified by the name of the product, such as: moon cake box, tea box, wolfberry box, candy box, exquisite gift box, local specialty box, wine box, chocolate box, food, medicine and health product box, food packaging box, tea packaging box, pencil case, etc.; packaging boxes have the functions of protecting and displaying products, ensuring the safety of products in transportation, and improving the grade of products; existing packaging boxes are usually divided into two types: split packaging boxes and integrated packaging boxes. The split packaging box is a packaging box whose box body and cover body can be completely separated, and the integrated packaging box is a packaging box whose cover body is still connected to the box body after opening.

[0003] Existing one-piece packaging boxes are usually of a folding type, that is, one end of the cover is rotatably connected to the box body, and the other end is detachably connected to the box body. The box body is opened and closed by rotating the cover body. However, this opening and closing method means that the box body can only be fully opened or fully closed. When there are multiple items inside the box body and only individual items need to be taken out, it is inconvenient to use. In addition, when the cover body is being opened, sufficient space needs to be left near the box body so that the cover body can rotate around the box body. After opening, sufficient space also needs to be left near the box body so that the cover body can be placed. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In order to solve the above problems, the utility model provides a packaging box, which enables the box body to be partially opened and reduces the space required by the cover body during the opening process and the space occupied after the opening.

[0006] (II) Technical solution

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A packaging box comprises a box body for accommodating articles and a cover body for covering the box body, wherein one end of the cover body is rotatably connected to the box body, and the other end of the cover body is detachably connected to the box body, and the cover body is composed of a plurality of folding plates, and two adjacent folding plates are rotatably connected to each other so that the box body can be partially opened and the space required for the cover body during opening and the space occupied by the cover body after opening are reduced, and the folding plates are of multiple types, and the geometric parameters of the folding plates of different types are different.

[0009] Preferably, at least one first partition member is detachably connected in the box body for dividing the space in the box body and forming a plurality of chambers, and the first partition member corresponds to the rotating part of the folding plate so that the folding plate can open and close the corresponding chamber.

[0010] Preferably, at least one second barrier member is detachably connected in the chamber to separate the chamber.

[0011] Preferably, the box body is in the shape of a rectangular parallelepiped and has an opening at the top, a first protective piece is provided at the bottom of the box body, the size of the first protective piece is larger than the bottom size of the box body, and is used to protect the bottom edges and corners of the box body, a second protective piece is provided on the rear side of the box body, the size of the second protective piece is larger than the rear side size of the box body, and is used to protect the rear edges and corners of the box body, the cover body can present an L-shape and cover the top and front side of the box body through the rotation of a plurality of the folding plates, the top size of the L-shaped cover body is larger than the top size of the box body, and is used to protect the top edges and corners of the box body, the front side size of the L-shaped cover body is larger than the front size of the box body, and is used to protect the front edges and corners of the box body, so that after the cover body is closed, the edges and corners on all sides of the box body can be protected.

[0012] Preferably, the box body is magnetically connected to the cover body.

[0013] Preferably, the folding plates are three and are divided into a first rotating plate rotatably connected to the box body, a second rotating plate rotatably connected to the first rotating plate, and a third rotating plate rotatably connected to the second rotating plate, the first rotating plate and the second rotating plate are used to cover the top of the box body, and the third rotating plate is used to cover the front side of the box body, the third rotating plate is magnetically connected to the front side of the box body, the sum of the rotation radius of the first rotating plate and the second rotating plate is greater than the rotation radius of the third rotating plate, the packaging box has a first state of partial opening and a second state of full opening, when the packaging box is in the first state, the first rotating plate, the second rotating plate, and the third rotating plate can be enclosed into a triangular prism shape, and the third rotating plate is in contact with the top of the box body, when the packaging box is in the second state, the first rotating plate, the second rotating plate, and the third rotating plate can be enclosed into a triangular prism shape, and the third rotating plate is in contact with the back side of the box body.

[0014] Preferably, the box body comprises:

[0015] A first plate body, which is rectangular and serves as the bottom of the packaging box;

[0016] A second plate body, the second plate body is rectangular and is rotatably connected to the rear side of the first plate body, the second plate body is rotatably connected to the cover body, and a rotation axis formed by the second plate body rotating around the first plate body and a rotation axis formed by the second plate body rotating around the cover body are parallel to each other;

[0017] A third plate body, the third plate body is rectangular and is rotatably connected to the front side of the first plate body, and the rotation axis formed by the third plate body rotating around the first plate body and the rotation axis formed by the second plate body rotating around the first plate body are parallel to each other;

[0018] Two fourth plates, the fourth plates are rectangular, the two fourth plates are rotatably connected to the left and right sides of the first plate and are arranged opposite to each other, and two rotation axes formed by the two fourth plates rotating around the first plate are parallel to each other and perpendicular to the rotation axis formed by the third plate rotating around the first plate;

[0019] Two groups of connecting members, the two groups of connecting members are respectively arranged on the two fourth plates, each group of connecting members consists of two connecting members, the two connecting members in the same group are respectively rotatably connected to the opposite sides of the same fourth plate, and one of the connecting members is rotatably connected to the second plate, and the other connecting member is rotatably connected to the third plate, the rotation axis formed by the connecting member rotating around the second plate and the rotation axis formed by the second plate rotating around the first plate form an angle of 45°, the rotation axis formed by the connecting member rotating around the third plate and the rotation axis formed by the third plate rotating around the first plate form an angle of 45°, the side of the connecting member rotatably connected to the second plate away from the first plate is detachably connected to the second plate, and the side of the connecting member rotatably connected to the third plate away from the first plate is detachably connected to the third plate, so that the box body has a first state of a substantially planar structure after folding and a second state of a three-dimensional structure after unfolding;

[0020] When the box body is in the first state, the first plate body, the second plate body, and the third plate body are coplanar, the fourth plate body is attached to the first plate body, the connecting member rotatably connected to the second plate body is attached to the second plate body, and the connecting member rotatably connected to the third plate body is attached to the third plate body;

[0021] When the box body is in the second state, the second plate body, the third plate body, and the fourth plate body are all perpendicular to the first plate body, the second plate body and the third plate body are all perpendicular to the fourth plate body, the second plate body and the third plate body are parallel to each other, the two fourth plates are parallel to each other, the connecting piece rotatably connected to the second plate body fits the second plate body, and the connecting piece rotatably connected to the third plate body fits the third plate body.

[0022] (III) Beneficial effects

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] In actual use, the end of the cover body rotatably connected to the box body is used as the rotating part, and the end of the cover body detachably connected to the box body is used as the connecting part. The box body can be gradually opened by rotating the folding plate from the connecting part to the rotating part, so that the box body can be partially opened. When there are multiple items inside the box body and only individual items need to be taken out, it is more convenient to use. Since the rotation radius of the folding plate is significantly smaller than the rotation radius of the cover body, the box body can still be completely opened and closed in a relatively narrow space, and there is no need to leave too much space near the box body. In general, by using the packaging box, the box body can be partially opened, and the space required for the cover body during the opening process and the space occupied after opening are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 A three-dimensional diagram of the packaging box of the utility model when it is closed is shown;

[0027] Figure 2 Shows Figure 1 A three-dimensional image of the middle packaging box when it is closed from another angle;

[0028] Figure 3 A three-dimensional diagram showing the packaging box of the utility model in a first state;

[0029] Figure 4 Shows Figure 3 A three-dimensional image of the middle packaging box in the first state from another angle;

[0030] Figure 5 A three-dimensional diagram showing the packaging box of the utility model in a second state;

[0031] Figure 6 Shows Figure 5 A three-dimensional image of the middle packaging box in a second state from another angle;

[0032] Figure 7 A three-dimensional diagram showing a box body of the packaging box of the utility model in a first state;

[0033] Figure 8 A three-dimensional diagram showing a box body of the packaging box of the utility model in a second state;

[0034] Fig. 9 A three-dimensional view from another angle is shown when the box body of the packaging box of the utility model is in the second state.

[0035] In the figure: 1. box body; 11. first plate body; 12. second plate body; 13. third plate body; 14. fourth plate body; 15. connecting member; 2. cover body; 21. folding plate; 211. first rotating plate; 212. second rotating plate; 213. third rotating plate; 3. first barrier member; 4. second barrier member; 5. first protective member; 6. second protective member. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] See attached Figure 1 The utility model embodiment discloses a packaging box, including a box body 1 for accommodating articles and a cover body 2 for covering the box body 1, one end of the cover body 2 is rotatably connected to the box body 1, and the other end of the cover body 2 is detachably connected to the box body 1, the cover body 2 is composed of a plurality of folding plates 21, and two adjacent folding plates 21 are rotatably connected to each other so that the box body 1 can be partially opened and the space required for the cover body 2 during the opening process and the space occupied by the cover body 2 after opening are reduced, and the folding plates 21 are of various types, and the geometric parameters of different types of folding plates 21 are different.

[0038] In actual use, the end of the cover body 2 that is rotatably connected to the box body 1 is taken as the rotating part, and the end of the cover body 2 that is detachably connected to the box body 1 is taken as the connecting part. The folding plate 21 is rotated from the connecting part to the rotating part in sequence to gradually open the box body 1, so that the box body 1 can be partially opened. When there are multiple items inside the box body and only individual items need to be taken out, it is more convenient to use. Since the rotation radius of the folding plate 21 is significantly smaller than the rotation radius of the cover body 2, the box body 1 can still be completely opened and closed in a relatively narrow space, and there is no need to leave too much space near the box body 1. In general, by using this packaging box, the box body 1 can be partially opened, and the space required for the cover body 2 during the opening process and the space occupied after opening are reduced.

[0039] It should be noted that the number of folding plates 21 is not limited in the present application. When there are a large number of folding plates 21, the cover body 2 can be opened and closed in a manner that is almost like rolling, and the space required during the opening process and the space occupied after opening are smaller.

[0040] Furthermore, regarding the geometric parameters in “different types of folding plates 21 have different geometric parameters”, they mainly include two parameters, namely, size and shape, which can be flexibly adjusted according to actual conditions; it should be noted that the multiple folding plates 21 that make up a cover body 2 can be of the same type or of different types.

[0041] See attached Figure 3 , multiple items are often loaded into the box body 1. In order to facilitate classification and placement, the following design is carried out in this embodiment. Specifically, at least one first partition member 3 is detachably connected to the box body 1, which is used to divide the space in the box body 1 and form multiple chambers. The first partition member 3 corresponds to the rotating part of the folding plate 21, so that the folding plate 21 can open and close the corresponding chamber.

[0042] Through the design of the above structure, multiple items can be placed in different chambers in different categories; and because the rotating parts of the first barrier member 3 and the folding plate 21 correspond to each other, when taking or placing a certain item, part of the folding plate 21 can be opened specifically, so that the box body 1 can take or place the corresponding item with the opening as small as possible.

[0043] See attached Figure 5 In order to further enhance the ability of the box body 1 to separate items, the following design is carried out in this embodiment. Specifically, at least one second barrier member 4 is detachably connected in the chamber to separate the chamber.

[0044] Through the design of the above structure, different kinds of articles can be placed in different chambers, and different articles of the same kind can be placed in different compartments in the same chamber. The number of articles after taking and placing is clearer, and it is more convenient to use.

[0045] See attached Figure 1 and attached Figure 2 The box body 1 usually has multiple edges and corners, which are likely to affect the overall shape of the box body 1 after being collided. In order to solve the above problems, the following design is carried out in this embodiment. Specifically, the box body 1 is in a rectangular shape and is open at the top. A first protective member 5 is provided at the bottom of the box body 1. The size of the first protective member 5 is larger than the bottom size of the box body 1 and is used to protect the bottom edges and corners of the box body 1. A second protective member 6 is provided on the rear side of the box body 1. The size of the second protective member 6 is larger than the rear side size of the box body 1 and is used to protect the rear edges and corners of the box body 1. The cover body 2 can present an L shape and cover the top and front side of the box body 1 through the rotation of multiple folding plates 21. The top size of the L-shaped cover body 2 is larger than the top size of the box body 1 and is used to protect the top edges and corners of the box body 1. The front side size of the L-shaped cover body 2 is larger than the front side size of the box body 1 and is used to protect the front edges and corners of the box body 1.

[0046] Through the design of the above structure, after the cover body 2 is closed, the edges and corners on each surface of the box body 1 are protected and will not be easily bumped.

[0047] There are various ways to achieve detachable connection between the box body 1 and the cover body 2. This embodiment introduces one of them. Specifically, the box body 1 and the cover body 2 are magnetically connected.

[0048] Through the design of the above structure, the box body 1 and the cover body 2 can be detachably connected without significantly changing the appearance, and has the advantages of simple structure, reliable connection, and convenient opening and closing.

[0049] See attached Figure 3 -Attached Figure 6 In order to more clearly describe the structure of the packaging box and the state of opening and closing, the present embodiment is described by taking three folding plates 21 as an example. Specifically, the folding plates 21 have three parts and are divided into a first rotating plate 211 rotatably connected to the box body 1, a second rotating plate 212 rotatably connected to the first rotating plate 211, and a third rotating plate 213 rotatably connected to the second rotating plate 212. The first rotating plate 211 and the second rotating plate 212 are used to cover the top of the box body 1, and the third rotating plate 213 is used to cover the front side of the box body 1. The third rotating plate 213 is magnetically connected to the front side of the box body 1. The sum of the rotation radius of the movable plate 211 and the second rotating plate 212 is greater than the rotation radius of the third rotating plate 213. The packaging box has a first state of partially opening and a second state of fully opening. When the packaging box is in the first state, the first rotating plate 211, the second rotating plate 212, and the third rotating plate 213 can be enclosed into a triangular prism shape, and the third rotating plate 213 is in contact with the top of the box body 1. When the packaging box is in the second state, the first rotating plate 211, the second rotating plate 212, and the third rotating plate 213 can be enclosed into a triangular prism shape, and the third rotating plate 213 is in contact with the back side of the box body 1.

[0050] Through the design of the above structure, the space required when the cover body 2 is rotated and the space occupied after the rotation can be greatly reduced. When used in conjunction with the first partition member 3 and the second partition member 4, part of the space of the box body 1 can be opened and the remaining space can be protected; when the box body 1 is in the first state, the rotated folding plate 21 can be fixed in a relative position to the box body 1 without being held; when the box body 1 is in the second state, the box body 1 can be stood up, that is, the original front side of the box body 1 is used as the bottom, and the first partition member 3 and the second partition member 4 are used, so that the entire packaging box can present a structure similar to that of a cabinet.

[0051] It should be noted that, in the present application, when the packaging box is in the first state, the reason why the third rotating plate 213 is in contact with the top of the box body 1 instead of the first rotating plate 211 being in contact with the top of the box body 1 is to prevent the second rotating plate 212 and the third rotating plate 213 from being easily reset when the first rotating plate 211 is in contact with the top of the box body 1.

[0052] It should be noted that when the first protective member 5 and the second protective member 6 are provided on the box body 1 , when the cover body 2 is connected to the box body 1 , the first protective member 5 and the second protective member 6 can also be regarded as part of the box body 1 .

[0053] See attached Figure 7 -Attached Fig. 9It should be noted that the specific structure of the box body 1 is not limited in the present application. The structure of the cover body 2 can be applied to box bodies 1 of various shapes. This embodiment introduces one structure of the box body 1. Specifically, the box body 1 includes a first plate body 11, a second plate body 12, a third plate body 13, two fourth plate bodies 14, and two groups of connecting members 15. The first plate body 11 is rectangular and serves as the bottom of the packaging box; the second plate body 12 is rectangular and rotatably connected to the rear side of the first plate body 11, and the second plate body 12 is rotatably connected to the cover body 2. The second plate body 12 revolves around the first The rotation axis formed by the rotation of the plate body 11 and the rotation axis formed by the rotation of the second plate body 12 around the cover body 2 are parallel to each other; the third plate body 13 is rectangular and is rotatably connected to the front side of the first plate body 11, and the rotation axis formed by the rotation of the third plate body 13 around the first plate body 11 and the rotation axis formed by the rotation of the second plate body 12 around the first plate body 11 are parallel to each other; the fourth plate body 14 is rectangular, and the two fourth plate bodies 14 are respectively rotatably connected to the left and right sides of the first plate body 11 and are arranged opposite to each other, and the two rotation axes formed by the two fourth plate bodies 14 rotating around the first plate body 11 are mutually parallel The second plate 12 is parallel to the third plate 13, and is perpendicular to the rotation axis formed by the third plate 13 rotating around the first plate 11; two groups of connecting members 15 are respectively arranged on the two fourth plate bodies 14, each group of connecting members 15 is composed of two connecting members 15, and the two connecting members 15 in the same group are respectively rotatably connected to the opposite sides of the same fourth plate body 14, and one of the connecting members 15 is rotatably connected to the second plate body 12, and the other connecting member 15 is rotatably connected to the third plate body 13, and the rotation axis formed by the rotation of the connecting member 15 around the second plate body 12 and the rotation of the second plate body 12 around the first plate body 11 The rotation axis formed is at an angle of 45°, and the rotation axis formed by the rotation of the connecting member 15 around the third plate body 13 and the rotation axis formed by the rotation of the third plate body 13 around the first plate body 11 are at an angle of 45°. The connecting member 15 rotatably connected to the second plate body 12 is detachably connected to the second plate body 12 at a side away from the first plate body 11, and the connecting member 15 rotatably connected to the third plate body 13 is detachably connected to the third plate body 13 at a side away from the first plate body 11, so that the box body 1 has a first state in which it is a basically planar structure after folding and a second state in which it is a three-dimensional structure after unfolding.

[0054] Based on the above scheme, when the box body 1 is in the first state, the first plate body 11, the second plate body 12, and the third plate body 13 are coplanar, the fourth plate body 14 fits the first plate body 11, the connecting piece 15 rotatably connected to the second plate body 12 fits the second plate body 12, and the connecting piece 15 rotatably connected to the third plate body 13 fits the third plate body 13; when the box body 1 is in the second state, the second plate body 12, the third plate body 13, and the fourth plate body 14 are all perpendicular to the first plate body 11, the second plate body 12 and the third plate body 13 are all perpendicular to the fourth plate body 14, the second plate body 12 and the third plate body 13 are parallel to each other, the two fourth plates 14 are parallel to each other, the connecting piece 15 rotatably connected to the second plate body 12 fits the second plate body 12, and the connecting piece 15 rotatably connected to the third plate body 13 fits the third plate body 13.

[0055] The above structural design not only saves the space required for the cover body 2 when in use, but also saves the space required for the box body 1 when stored, making storage, transportation and use more convenient.

[0056] Furthermore, the shape of the connector 15 is not limited in the present application and can be flexibly selected according to actual needs. In order to increase the contact surface between the connector 15 and the second plate 12 and the connector 15 and the third plate 13, thereby increasing the firmness of the connection of the components and the sealing of the side of the box body 1, the connector 15 can be set to an isosceles right triangle, and the length of the right angle side of the connector 15 is the same as the rotation radius of the fourth plate 14.

[0057] Furthermore, the present application does not limit the manner in which the connector 15 and the second plate 12, or the connector 15 and the third plate 13 are detachably connected, and can be flexibly selected according to actual needs. For example, if double-sided tape is used, it should be noted that due to the strong viscosity of the double-sided tape, the double-sided tape can only be set on one side of the connector 15 and used for connection and fixation after the box body 1 is unfolded, which is not convenient for disassembly after connection. If a magnetic connection method can also be used, this method allows both sides of the connector 15 to be connected to the second plate 12 or the third plate 13, which is convenient for disassembly after connection. At this time, whether the box body 1 is in the first state or the second state, its structure is very strong.

[0058] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0059] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A packaging box, characterized in that: The invention comprises a box body for accommodating articles and a cover body for covering the box body, wherein one end of the cover body is rotatably connected to the box body, and the other end of the cover body is detachably connected to the box body, and the cover body is composed of a plurality of folding plates, and two adjacent folding plates are rotatably connected to each other so that the box body can be partially opened and the space required for the cover body during the opening process and the space occupied by the cover body after opening are reduced, and the folding plates are of various types, and the geometric parameters of the folding plates of different types are different.

2. A packaging box according to claim 1, characterized in that: At least one first barrier member is detachably connected in the box body and is used to separate the space in the box body and form a plurality of chambers. The first barrier member corresponds to the rotating part of the folding plate, so that the folding plate can open and close the corresponding chamber.

3. A packaging box according to claim 2, characterized in that: At least one second barrier member is detachably connected in the chamber to separate the chamber.

4. A packaging box according to claim 3, characterized in that: The box body is in the shape of a rectangular parallelepiped and has an opening at the top; a first protective piece is provided at the bottom of the box body, and the size of the first protective piece is larger than the bottom size of the box body and is used to protect the bottom edges and corners of the box body; a second protective piece is provided on the rear side of the box body, and the size of the second protective piece is larger than the rear side size of the box body and is used to protect the rear edges and corners of the box body; the cover body can be L-shaped by rotating a plurality of folding plates and cover the top and front side of the box body; the top size of the L-shaped cover body is larger than the top size of the box body and is used to protect the top edges and corners of the box body; the front side size of the L-shaped cover body is larger than the front size of the box body and is used to protect the front edges and corners of the box body, so that after the cover body is closed, the edges and corners on all sides of the box body can be protected.

5. A packaging box according to claim 4, characterized in that: The box body is magnetically connected to the cover body.

6. A packaging box according to claim 5, characterized in that: The folding plate has three parts and is divided into a first rotating plate rotatably connected to the box body, a second rotating plate rotatably connected to the first rotating plate, and a third rotating plate rotatably connected to the second rotating plate. The first rotating plate and the second rotating plate are used to cover the top of the box body, and the third rotating plate is used to cover the front side of the box body. The third rotating plate is magnetically connected to the front side of the box body. The sum of the rotation radius of the first rotating plate and the second rotating plate is greater than the rotation radius of the third rotating plate. The packaging box has a first state of partial opening and a second state of full opening. When the packaging box is in the first state, the first rotating plate, the second rotating plate, and the third rotating plate can be enclosed into a triangular prism shape, and the third rotating plate is in contact with the top of the box body. When the packaging box is in the second state, the first rotating plate, the second rotating plate, and the third rotating plate can be enclosed into a triangular prism shape, and the third rotating plate is in contact with the back side of the box body.

7. A packaging box according to claim 1, characterized in that: The box body comprises: A first plate body, which is rectangular and serves as the bottom of the packaging box; A second plate body, the second plate body is rectangular and is rotatably connected to the rear side of the first plate body, the second plate body is rotatably connected to the cover body, and a rotation axis formed by the second plate body rotating around the first plate body and a rotation axis formed by the second plate body rotating around the cover body are parallel to each other; A third plate body, the third plate body is rectangular and is rotatably connected to the front side of the first plate body, and the rotation axis formed by the third plate body rotating around the first plate body and the rotation axis formed by the second plate body rotating around the first plate body are parallel to each other; Two fourth plates, the fourth plates are rectangular, the two fourth plates are rotatably connected to the left and right sides of the first plate and are arranged opposite to each other, and two rotation axes formed by the two fourth plates rotating around the first plate are parallel to each other and perpendicular to the rotation axis formed by the third plate rotating around the first plate; Two groups of connecting members, the two groups of connecting members are respectively arranged on the two fourth plates, each group of connecting members consists of two connecting members, the two connecting members in the same group are respectively rotatably connected to the opposite sides of the same fourth plate, and one of the connecting members is rotatably connected to the second plate, and the other connecting member is rotatably connected to the third plate, the rotation axis formed by the connecting member rotating around the second plate and the rotation axis formed by the second plate rotating around the first plate form an angle of 45°, the rotation axis formed by the connecting member rotating around the third plate and the rotation axis formed by the third plate rotating around the first plate form an angle of 45°, the side of the connecting member rotatably connected to the second plate away from the first plate is detachably connected to the second plate, and the side of the connecting member rotatably connected to the third plate away from the first plate is detachably connected to the third plate, so that the box body has a first state of a substantially planar structure after folding and a second state of a three-dimensional structure after unfolding; When the box body is in the first state, the first plate body, the second plate body, and the third plate body are coplanar, the fourth plate body is attached to the first plate body, the connecting member rotatably connected to the second plate body is attached to the second plate body, and the connecting member rotatably connected to the third plate body is attached to the third plate body; When the box body is in the second state, the second plate body, the third plate body, and the fourth plate body are all perpendicular to the first plate body, the second plate body and the third plate body are all perpendicular to the fourth plate body, the second plate body and the third plate body are parallel to each other, the two fourth plates are parallel to each other, the connecting piece rotatably connected to the second plate body fits the second plate body, and the connecting piece rotatably connected to the third plate body fits the third plate body.

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