Folding packaging box with buffering function

Abstract

The utility model relates to the technical field of packaging boxes, and provides a folding type packaging box with a buffering function, which comprises a box body and an inner supporting mechanism, the inner supporting mechanism is arranged in the box body, is used for placing articles and comprises a plurality of grid plates, the grid plates have telescopic folding functions, and the inner supporting mechanism is used for placing the articles. The two sides of the grid plate are fixedly connected with the inner wall of the box body, and the two side walls, not fixedly connected with the grid plate, of the box body have the folding function. According to the packaging box, the inner supporting mechanism can adapt to the size and the shape of an object, the moving and collision risks of the object in the transportation process are reduced, when the packaging box is not used, due to the folding design of the two side walls of the box body, the whole packaging box can be easily folded and stored when the packaging box is not used or space needs to be saved, and the storage and transportation convenience is greatly improved; the inner supporting mechanism can be folded and compressed along with the box body and does not occupy space.

Description

Technical Field

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

[0002] Packaging boxes can be divided into different types according to the materials used, such as paper boxes, iron boxes, wooden boxes, leather boxes, etc. Among them, paper boxes are widely used in commodity packaging because of their easy processing, low cost and environmental protection.

[0003] In today's logistics and commodity circulation field, with the rapid development of packaging technology, the inherent customization and protection problems of traditional packaging boxes have become increasingly prominent, becoming a major challenge for logistics and product transportation. Traditional packaging box designs are often fixed and cannot flexibly adapt to various sizes, making it difficult to find suitable packages for items of different product shapes, resulting in space waste or insufficient protection. In addition, the single volume design cannot be adjusted according to the actual needs of the items, which not only occupies storage and transportation space and increases transportation costs, but may also affect the environmental burden, which does not meet the current pursuit of green logistics.

[0004] The purpose of the utility model is to solve the problem that the traditional packaging box only provides a fixed, non-customizable space, cannot adapt to different sizes, leads to poor protection, cannot adapt to the shape of the product, and has a fixed packaging volume, which is inconvenient to transport. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the traditional packaging box only provides fixed, non-customizable space, cannot adapt to different sizes, resulting in poor protection, cannot adapt to product shapes, and has a fixed packaging volume, which is inconvenient for transportation. The utility model adopts the following technical solutions:

[0006] A foldable packaging box with a buffering function comprises a box body and an inner supporting mechanism, wherein the inner supporting mechanism is arranged in the box body and is used to place articles. The inner supporting mechanism comprises a plurality of grid plates, and the grid plates have a telescopic and folding function. Both sides of the grid plates are fixedly connected to the inner walls of the box body, and the two side walls of the box body that are not fixedly connected to the grid plates have a folding function.

[0007] In the foldable packaging box with a buffering function as described above, the grid plate is composed of a plurality of polygonal frames, and the plurality of polygonal frames are connected to each other.

[0008] In the foldable packaging box with a buffering function as described above, the inner supporting mechanism comprises a bottom plate, the bottom plate is fixedly connected to the grid plate, the bottom plate has a telescopic and folding function, and the bottom plate is fixedly connected to the inner wall of the box body.

[0009] In the foldable packaging box with a buffering function as described above, the bottom plate is composed of a plurality of polygonal cylinders, and the cross-sectional shape of the polygonal cylinders is the same as the cross-sectional shape of the polygonal frame.

[0010] In the foldable packaging box with a buffering function as described above, the cross-sectional shape of the polygonal frame is a hollow hexagon or a hollow equilateral rhombus.

[0011] As described above, in a foldable packaging box with a buffering function, the top of the polygonal frame faces upward, and the polygonal frame is arranged in the horizontal direction and the vertical direction respectively. The sides of the horizontally arranged and adjacent polygonal frames form a deformation gap, and the vertices of the vertically arranged and adjacent polygonal frames are connected. The horizontally arranged and adjacent polygonal frames and the corresponding vertically arranged and adjacent polygonal frames form a polygonal frame combination, and the polygonal frame combination is provided with a quadrilateral deformation area.

[0012] A foldable packaging box with a buffering function as described above, wherein the box body is composed of four box wall mechanisms, including a first box wall mechanism, one side of the first box wall mechanism is fixedly connected to a second box wall mechanism, one side of the second box wall mechanism is fixedly connected to a third box wall mechanism, one side of the third box wall mechanism is fixedly connected to a fourth box wall mechanism, one side of the fourth box wall mechanism is fixedly connected to a lap plate, the first box wall mechanism and the third box wall mechanism have the same component structure, and the second box wall mechanism and the fourth box wall mechanism have the same component structure.

[0013] In the foldable packaging box with a buffering function as described above, the first box wall mechanism includes a first plate body, and first flaps are fixedly connected to both upper and lower sides of the first plate body.

[0014] In the foldable packaging box with a buffering function as described above, the second box wall mechanism includes a second plate body, and the second flaps are fixedly connected to the upper and lower sides of the second plate body.

[0015] In the foldable packaging box with a buffering function as described above, the two box wall mechanisms of the box body that are not fixedly connected to the grid plate are both provided with folds.

[0016] Implementing the embodiments of the utility model has the following beneficial effects:

[0017] 1. In the utility model, the inner support mechanism can adapt to the size and shape of the items, reducing the risk of movement and collision of the items during transportation. When not in use, the folding design of the two side walls of the box body allows the entire packaging box to be easily folded and stored when not in use or when space needs to be saved, greatly improving the convenience of storage and transportation. The inner support mechanism can be folded and compressed along with the box body without taking up space.

[0018] 2. The operation process of the utility model is intuitive, and users do not need professional knowledge. The simple and clear folding design and clear crease indications make it easy to complete both loading and storage without guidance.

[0019] In summary, the utility model solves the problem that the traditional packaging box only provides a fixed, non-customizable space, cannot adapt to different sizes, resulting in poor protection, cannot adapt to the shape of the product, and has a fixed packaging volume, which is inconvenient to transport. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 The utility model is a structural schematic diagram of a foldable packaging box with a buffer function.

[0022] Figure 2 The utility model is a structural schematic diagram of a foldable packaging box with a buffering function when folded.

[0023] Figure 3 The utility model is a schematic structural diagram of a foldable packaging box with a buffering function after the box body is unfolded.

[0024] Figure 4 The utility model is a schematic diagram of the layout structure of a box body of a foldable packaging box with a buffer function.

[0025] Figure 5 The utility model is a structural schematic diagram of an inner supporting mechanism of a foldable packaging box with a buffering function.

[0026] Figure 6 The utility model is a structural schematic diagram of a polygonal frame of a foldable packaging box with a buffer function. DETAILED DESCRIPTION

[0027] 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 of 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.

[0028] like Figures 1 to 6As shown, the utility model proposes a foldable packaging box with a buffering function, including a box body 1 and an inner supporting mechanism 2, the inner supporting mechanism 2 is arranged in the box body 1, the inner supporting mechanism 2 is used to place articles, the inner supporting mechanism 2 includes a plurality of grid plates 202, the grid plates 202 have a telescopic folding function, both sides of the grid plates 202 are fixedly connected to the inner wall of the box body 1, and the two side walls of the box body 1 that are not fixedly connected to the grid plates 202 have a folding function. The box body 1, as the outer shell of the packaging box, provides necessary external protection for the articles in the box body 1 to prevent the influence of external physical impact and environmental factors on the internal articles. The folding design of the two side walls of the box body 1 enables the entire packaging box to be easily folded and stored when not in use or when space needs to be saved, greatly improving the convenience of storage and transportation. The inner supporting mechanism 2 is used for the reasonable placement and protection of articles, can adapt to the size and shape of articles, and reduce the risk of movement and collision of articles during transportation. The telescopic folding function of the grid plate 202 enables the inner supporting mechanism 2 to fold and compress along with the box body 1 when not in use, without occupying space. When the folded box body 1 is opened, the inner supporting mechanism 2 can be opened along with the opening of the box body 1 .

[0029] Further, as a preferred embodiment of the present invention but not a limitation, the grid plate 202 is composed of a plurality of polygonal frames 203, and the plurality of polygonal frames 203 are interconnected to form a grid network. The connection between the polygonal frames 203 allows the grid plate 202 to be retractable and foldable, so that the packaging box can adapt to items of different sizes, and is also convenient for folding and storage when not in use, saving storage space. The grid network formed by the interconnection can evenly disperse the pressure, thereby protecting the items inside the box body 1.

[0030] Further, as a preferred embodiment of the present invention but not a limitation, the inner supporting mechanism 2 includes a bottom plate 201, the bottom plate 201 is fixedly connected to the bottom of the grid plate 202, the bottom plate 201 has a telescopic folding function, and the bottom plate 201 is fixedly connected to the inner wall of the box body 1. The combination of the bottom plate 201 and the grid plate 202 provides a planar support for the items placed thereon, preventing the items from passing through the grid plate 202 and falling to the bottom of the inner cavity of the box body 1. When not in use, the bottom plate 201 can be folded up with the grid plate 202, reducing the space occupied by the inner supporting mechanism 2, so that the entire packaging box can be folded, stored or stacked more compactly.

[0031] Optionally, in some embodiments, the inner supporting mechanism 2 fills the inner cavity of the box body 1, that is, the top of the inner supporting mechanism 2 is flush with the top of the inner cavity of the box body 1, and the bottom of the inner supporting mechanism 2 is flush with the bottom of the inner cavity of the box body 1. The inner supporting mechanism 2 completely fits the upper and lower boundaries of the inner cavity of the box body 1, which can provide better vertical stability and can effectively prevent the internal items from shifting or tipping over even in the case of severe shaking or inversion, thereby improving the stability of the overall packaging.

[0032] Optionally, in some embodiments, the bottom of the inner supporting mechanism 2 is flush with the bottom of the inner cavity of the box body 1, and the top of the inner supporting mechanism 2 is lower than the top of the inner cavity of the box body 1. There is space between the box body 1 and the top of the inner supporting mechanism 2. The reserved space can be used to place cushioning materials, such as foam, bubble film or shock-proof gaskets, to further increase the protection of items placed on the inner supporting mechanism 2. The space can be used to store small items such as accessories, manuals, warranty cards, etc. related to the main items. This can not only ensure the safe storage of these accessories, but also facilitate users to find them, thereby improving the user experience.

[0033] Optionally, in some embodiments, the top of the inner supporting mechanism 2 is flush with the top of the inner cavity of the box body 1, and the bottom of the inner supporting mechanism 2 is higher than the bottom of the inner cavity of the box body 1, that is, there is space between the bottom of the inner supporting mechanism 2 and the bottom of the inner supporting mechanism 2. The design that the bottom of the inner supporting mechanism 2 is higher than the bottom of the box body 1 can achieve physical isolation between the items and the box bottom 1, which helps prevent moisture, dirt or external impact at the bottom from being directly transferred to the items on the inner supporting mechanism.

[0034] Furthermore, as a preferred embodiment of the present utility model but not a limitation, the bottom plate 201 is composed of a plurality of polygonal cylinders 204, and the cross-sectional shape of the polygonal cylinders 204 is the same as the cross-sectional shape of the polygonal frame 203, which can achieve structural consistency and continuity of the entire inner supporting mechanism 2.

[0035] Furthermore, as a preferred embodiment of the present invention but not a limitation, the cross-sectional shape of the polygonal frame 203 is a hollow hexagon. The hexagonal structure can evenly distribute external forces in any direction, providing extremely high structural stability. When the hollow hexagonal frame is impacted, it can effectively disperse the pressure, reduce local stress concentration, and protect the internal items.

[0036] Optionally, in some embodiments, the cross-sectional shape of the polygonal frame 203 is a hollow equilateral rhombus. The equilateral rhombus can be compressed in the horizontal or vertical direction with a consistent compression distance. When the cross-sectional shape of the polygonal frame 203 is a hollow equilateral rhombus, the grid plate 202 formed by the combination is also further compressed in the horizontal or vertical direction with a consistent distance. Therefore, when the grid plate 202 is installed in the box body 1, it is not necessary to strictly distinguish the direction of the frame 203, which simplifies the assembly process and improves the efficiency of installation.

[0037] Furthermore, as a preferred embodiment of the present invention but not a limitation, the top of the polygonal frame 203 faces directly upward, and the polygonal frame 203 is arranged in the horizontal direction and the vertical direction respectively. The sides of the horizontally arranged and adjacent polygonal frames 203 form a deformation gap, and the vertices of the vertically arranged and adjacent polygonal frames 203 are connected. The horizontally arranged and adjacent polygonal frames 203 and their corresponding vertically arranged and adjacent polygonal frames 203 form a polygonal frame combination, and the polygonal frame combination is provided with a quadrilateral deformation area. The top of the polygonal frame 203 faces directly upward, which can better bear the pressure applied from above, so that the top of the polygonal frame 203 becomes the bearing point, which strengthens the support for the upper load, thereby better protecting the items.

[0038] Further, as a preferred embodiment of the present utility model but not limiting, the box body 1 is composed of four box wall mechanisms, including a first box wall mechanism 101, one side of the first box wall mechanism 101 is fixedly connected to the second box wall mechanism 102, one side of the second box wall mechanism 102 is fixedly connected to the third box wall mechanism 103, one side of the third box wall mechanism 103 is fixedly connected to the fourth box wall mechanism 104, one side of the fourth box wall mechanism 104 is fixedly connected to a lap plate 105, the first box wall mechanism 101 and the third box wall mechanism 103 have the same component structure, the second box wall mechanism 102 and the fourth box wall mechanism 104 have the same component structure, the first box wall mechanism 101 includes a first plate body 1011, the upper and lower sides of the first plate body 1011 are fixedly connected to the first flap 1012, the second box wall mechanism 102 includes a second plate body 1021, the upper and lower sides of the second plate body 1021 are fixedly connected to the second flap 1022. The box body 1 composed of the above structure has the characteristics of simple structure and easy production. The cross-sectional shape of the paper box composed of this structure is diamond-shaped, which naturally has the function of folding and is easy to transport and store.

[0039] Further, as a preferred embodiment of the present invention but not a limitation, the two box wall mechanisms of the box body 1 that are not fixedly connected to the grid plate 202 are both provided with folds. The provision of the folds enables the box walls that are not directly connected to the grid plate 202 to be easily bent along the preset traces without the need for additional tools or complicated operations, thereby simplifying the folding process of the entire packaging box body 1. When installing the grid plate 202, the installation direction of the grid plate 202 can be quickly identified by observing the folds.

[0040] like Figures 1 to 6 As shown, the implementation method of Example 1 is as follows:

[0041] A foldable packaging box with a buffering function comprises a box body 1 and an inner supporting mechanism 2, wherein the inner supporting mechanism 2 is arranged in the box body 1, and the inner supporting mechanism 2 is used to place articles. The inner supporting mechanism 2 comprises a plurality of grid plates 202, and the grid plates 202 have a telescopic folding function. Both sides of the grid plates 202 are fixedly connected to the inner wall of the box body 1, and the two side walls of the box body 1 that are not fixedly connected to the grid plates 202 have a folding function. The box body 1, as the outer shell of the packaging box, provides necessary external protection for the articles in the box body 1, and prevents the influence of external physical impact and environmental factors on the internal articles. The folding design of the two side walls of the box body 1 enables the entire packaging box to be easily folded and stored when not in use or when space needs to be saved, greatly improving the convenience of storage and transportation. The inner supporting mechanism 2 is used for the reasonable placement and protection of articles, can adapt to the size and shape of articles, and reduce the movement and collision risks of articles during transportation. The telescopic folding function of the grid plates 202 enables the inner supporting mechanism 2 to be folded and compressed along with the box body 1 when not in use, and does not occupy space. When the folded box body 1 is opened, the inner supporting mechanism 2 can be opened along with the opening of the box body 1 .

[0042] The grid plate 202 is composed of a plurality of polygonal frames 203, and the plurality of polygonal frames 203 are interconnected to form a grid-like network. The connection between the polygonal frames 203 allows the grid plate 202 to be retractable and foldable, so that the packaging box can adapt to items of different sizes, and is also convenient for folding and storing when not in use, saving storage space. The interconnected grid-like network can evenly disperse the pressure, thereby protecting the items inside the box body 1.

[0043] The inner supporting mechanism 2 includes a bottom plate 201, which is fixedly connected to the bottom of the grid plate 202, has a telescopic and folding function, and is fixedly connected to the inner wall of the box body 1. The combination of the bottom plate 201 and the grid plate 202 provides a planar support for the items placed thereon, preventing the items from passing through the grid plate 202 and falling to the bottom of the inner cavity of the box body 1. When not in use, the bottom plate 201 can be folded up with the grid plate 202, reducing the space occupied by the inner supporting mechanism 2, so that the entire packaging box can be folded, stored or stacked more compactly.

[0044] The inner supporting mechanism 2 fills the inner cavity of the box body 1, that is, the top of the inner supporting mechanism 2 is level with the top of the inner cavity of the box body 1, and the bottom of the inner supporting mechanism 2 is level with the bottom of the inner cavity of the box body 1. The inner supporting mechanism 2 completely fits the upper and lower boundaries of the inner cavity of the box body 1, and can provide better vertical stability. Even in the case of severe shaking or inversion, it can effectively prevent the internal items from shifting or tipping over, thereby improving the stability of the overall packaging.

[0045] The bottom plate 201 is composed of a plurality of polygonal cylinders 204 , and the cross-sectional shape of the polygonal cylinders 204 is the same as the cross-sectional shape of the polygonal frame 203 , thereby achieving structural consistency and continuity of the entire inner supporting mechanism 2 .

[0046] The cross-sectional shape of the polygonal frame 203 is a hollow hexagon. The hexagonal structure can evenly distribute external forces in any direction, providing extremely high structural stability. When the hollow hexagonal frame is impacted, it can effectively disperse pressure, reduce local stress concentration, and protect internal items.

[0047] The apex of the polygonal frame 203 faces upward, and the polygonal frame 203 is arranged in the horizontal direction and the vertical direction respectively. The sides of the horizontally adjacent polygonal frames 203 form a deformation gap, and the vertices of the vertically adjacent polygonal frames 203 are connected. The horizontally adjacent polygonal frames 203 and the corresponding vertically adjacent polygonal frames 203 form a polygonal frame combination, and the polygonal frame combination is provided with a quadrilateral deformation area. The apex of the polygonal frame 203 faces upward, which can better bear the pressure applied from above, so that the top of the polygonal frame 203 becomes the bearing point, which strengthens the support for the upper load, thereby better protecting the items.

[0048] The box body 1 is composed of four box wall mechanisms, including a first box wall mechanism 101, one side of the first box wall mechanism 101 is fixedly connected to the second box wall mechanism 102, one side of the second box wall mechanism 102 is fixedly connected to the third box wall mechanism 103, one side of the third box wall mechanism 103 is fixedly connected to the fourth box wall mechanism 104, one side of the fourth box wall mechanism 104 is fixedly connected to a lap plate 105, the first box wall mechanism 101 and the third box wall mechanism 103 have the same component structure, the second box wall mechanism 102 and the fourth box wall mechanism 104 have the same component structure, the first box wall mechanism 101 includes a first plate body 1011, the upper and lower sides of the first plate body 1011 are fixedly connected to the first flap 1012, the second box wall mechanism 102 includes a second plate body 1021, the upper and lower sides of the second plate body 1021 are fixedly connected to the second flap 1022. The box body 1 composed of the above structure has the characteristics of simple structure and easy production. The cross-sectional shape of the paper box composed of this structure is diamond-shaped, which naturally has the function of folding and is easy to transport and store.

[0049] The two box wall mechanisms of the box body 1 that are not fixedly connected to the grid plate 202 are both provided with folds. The provision of the folds allows the box walls that are not directly connected to the grid plate 202 to be easily bent along the preset traces without the need for additional tools or complicated operations, thus simplifying the folding process of the entire packaging box body 1. When installing the grid plate 202, the installation direction of the grid plate 202 can be quickly identified by observing the folds.

[0050] The implementation method of the second embodiment is as follows:

[0051] The difference between Example 2 and Example 1 is that the top of the inner supporting mechanism 2 is lower than the top of the inner cavity of the box body 1, and the bottom of the inner supporting mechanism 2 is higher than the bottom of the inner cavity of the box body 1, that is, there is space between the bottom of the inner supporting mechanism 2 and the bottom of the inner supporting mechanism 2, and there is space between the box body 1 and the top of the inner supporting mechanism 2.

[0052] The space at the top can be filled with cushioning materials such as foam, bubble film, and shockproof pads to further enhance the protection of the items on the inner support mechanism 2. These materials can absorb vibrations and shocks during transportation, reduce the risk of damage, and ensure that the items are intact. In addition to protection, the top space can also be used to store accessories related to the main item, such as small parts, instructions, warranty cards, user guides, etc., which are often auxiliary materials that accompany the items. This design ensures that these small items are not lost and are easy for users to find when needed, improving the overall experience.

[0053] The design that the bottom of the inner support mechanism 2 is higher than the bottom of the box body 1 can achieve physical isolation between the items and the box bottom 1, which helps prevent moisture, dirt or external impact at the bottom from being directly transferred to the items on the inner support, thereby enhancing the protection of the items in the box body 1.

[0054] The implementation method of the third embodiment is as follows:

[0055] The difference between the third embodiment and the first embodiment is that the cross-sectional shape of the polygonal frame 203 is a hollow equilateral rhombus.

[0056] The equilateral rhombus can be compressed horizontally or vertically with the same compression distance. When the cross-sectional shape of the polygonal frame 203 is a hollow equilateral rhombus, the grid plate 202 can ensure the same compressibility in the horizontal and vertical directions in the box body 1 no matter how it is placed due to the arrangement of the equilateral rhombus frame 203. When installing, there is no need to consider the specific orientation of the frame 203, which simplifies the assembly process, speeds up the operation, reduces the error rate, and improves the overall efficiency. The equilateral rhombus design can evenly disperse the pressure when compressed, slow down and absorb the impact, and protect the items in the box.

[0057] Specifically, the working principle of the utility model is as follows:

[0058] When in use, the packaging box that is initially flattened is opened to quickly form a stable cubic structure. The inner supporting mechanism 2 is opened as the box body 1 is opened. The first flap 1012 and the second flap 1022 are flipped to make the box body 1 form the outer shell of the packaging box. The items are further placed on the inner supporting mechanism 2. The box body 1, as the outer shell of the packaging box, provides necessary external protection for the items in the box body 1 to prevent the external physical impact and environmental factors from affecting the internal items. The inner supporting mechanism 2 can adapt to the size and shape of the items and reduce the risk of movement and collision of the items during transportation. When not in use, the folding design of the two side walls of the box body 1 allows the entire packaging box to be easily folded and stored when not in use or when space needs to be saved, which greatly improves the convenience of storage and transportation. The inner supporting mechanism 2 can be folded and compressed along with the box body 1 without taking up space.

[0059] In summary, the utility model solves the problem that the traditional packaging box only provides a fixed, non-customizable space, cannot adapt to different sizes, resulting in poor protection, cannot adapt to the shape of the product, and has a fixed packaging volume, which is inconvenient to transport.

[0060] It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information. In addition, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0061] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A foldable packaging box with a buffering function, characterized in that: The invention comprises a box body (1) and an inner supporting mechanism (2), wherein the inner supporting mechanism (2) is arranged in the box body (1), and is used to place articles. The inner supporting mechanism (2) comprises a plurality of grid plates (202), and the grid plates (202) have a telescopic and folding function. Both sides of the grid plates (202) are fixedly connected to the inner wall of the box body (1), and the two side walls of the box body (1) that are not fixedly connected to the grid plates (202) have a folding function.

2. A foldable packaging box with a buffering function according to claim 1, characterized in that: The grid plate (202) is composed of a plurality of polygonal frames (203), and the plurality of polygonal frames (203) are connected to each other.

3. A foldable packaging box with a buffering function according to claim 2, characterized in that: The inner supporting mechanism (2) comprises a bottom plate (201), the bottom plate (201) being fixedly connected to the grid plate (202), the bottom plate (201) having a telescopic and folding function, and the bottom plate (201) being fixedly connected to the inner wall of the box body (1).

4. A foldable packaging box with a buffering function according to claim 3, characterized in that: The bottom plate (201) is composed of a plurality of polygonal cylinders (204), and the cross-sectional shape of the polygonal cylinders (204) is the same as the cross-sectional shape of the polygonal frame (203).

5. The foldable packaging box with a buffering function according to claim 2, characterized in that: The cross-sectional shape of the polygonal frame (203) is a hollow hexagon or a hollow equilateral rhombus.

6. The foldable packaging box with a buffering function according to claim 2, characterized in that: The apex of the polygonal frame (203) faces upwards, the polygonal frame (203) is arranged in the horizontal direction and the vertical direction respectively, the sides of the horizontally arranged and adjacent polygonal frames (203) form a deformation gap, the vertices of the vertically arranged and adjacent polygonal frames (203) are connected, the horizontally arranged and adjacent polygonal frames (203) and the corresponding vertically arranged and adjacent polygonal frames (203) form a polygonal frame combination, and the polygonal frame combination is provided with a quadrilateral deformation area.

7. The foldable packaging box with a buffering function according to claim 1, characterized in that The box body (1) is composed of four box wall mechanisms, including a first box wall mechanism (101), one side of the first box wall mechanism (101) is fixedly connected to a second box wall mechanism (102), one side of the second box wall mechanism (102) is fixedly connected to a third box wall mechanism (103), one side of the third box wall mechanism (103) is fixedly connected to a fourth box wall mechanism (104), one side of the fourth box wall mechanism (104) is fixedly connected to a lap plate (105), the first box wall mechanism (101) and the third box wall mechanism (103) have the same component structure, and the second box wall mechanism (102) and the fourth box wall mechanism (104) have the same component structure.

8. The foldable packaging box with a buffering function according to claim 7, characterized in that: The first box wall mechanism (101) comprises a first plate body (1011), and first flaps (1012) are fixedly connected to the upper and lower sides of the first plate body (1011).

9. The foldable packaging box with a buffering function according to claim 7, characterized in that: The second box wall mechanism (102) comprises a second plate body (1021), and the second plate body (1021) is fixedly connected to second flaps (1022) on both upper and lower sides.

10. The foldable packaging box with a buffering function according to claim 7, characterized in that: The two box wall mechanisms of the box body (1) that are not fixedly connected to the grid plate (202) are both provided with folds.

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