Box and packaging box

Abstract

The application provides a box body and a packaging box. The box body comprises a box body and an elastic sheet. The box body comprises a side wall and a bottom wall, and the side wall and the bottom wall form a containing space. The side wall is provided with a clamping hole. The elastic sheet is located in the containing space. The elastic sheet comprises an elastic arm and a bending part. When an article is placed in the box body, the article presses the elastic sheet, the bending part of the elastic sheet extends through the first clamping hole and is inserted into the second clamping hole of the lower box body, so as to fix and cover the opening area of the lower box body, and the purpose of locking with the lower box body is achieved. When the article in the box body is taken out, the elastic sheet returns to the original state, and the bending part of the elastic sheet rebounds, so as to release the locking with the lower box body. It can be seen that the lower box body can be opened only after the article in the upper box body is taken out, and the user can open the packaging in the order from top to bottom.

Description

Technical Field

[0001] The present application relates to the field of packaging technology, and in particular to a box body and a packaging box. Background Art

[0002] A packaging box is used to package products, ensuring their safety during transport and enhancing their quality. Multi-layered packaging boxes allow for the placement of different components or products within a single package layer by layer. Users are encouraged to open the packaging layer by layer, from top to bottom. This enhances the product's sense of technology or mystery, creating a unique consumer experience. However, existing multi-layered packaging boxes cannot guarantee that users will be able to open the packaging in this order.

[0003] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Summary of the Invention

[0004] In response to the above technical problems, the present application provides a box body and a packaging box, which can be opened in sequence when the packaging box is opened, so that different components of the same product or different products can be presented to the user in a pre-placed order.

[0005] To solve the above technical problems, the present application provides a box body, comprising:

[0006] The box body includes a side wall and a bottom wall, wherein the side wall and the bottom wall form a receiving space, and the side wall is provided with a first positioning hole, wherein the receiving space is used to receive objects;

[0007] an elastic sheet located in the accommodating space, the elastic sheet comprising an elastic arm and a bent portion located at a second end of the elastic arm;

[0008] Wherein, the first end of the elastic arm is provided on the side wall, and the elastic arm is bent in a direction away from the adjacent side wall;

[0009] The bent portion is bent in a direction toward the adjacent side wall, and is used for extending the bent portion to the outside of the box body through the first positioning hole when the elastic arm is in a compressed state, so as to be inserted into the second positioning hole of the lower box body, so that the box body is fixed and covers the opening area of ​​the lower box body.

[0010] Optionally, the number of the spring pieces is at least two, wherein at least two of the spring pieces are arranged opposite to each other.

[0011] Optionally, the accommodating space has the opening area, and the box body further includes a cover body for opening or covering the opening area of ​​the accommodating space.

[0012] Optionally, the elastic arm is used to elastically support the placed object, and the elastic arm includes the compressed state and the decompressed state; the compressed state is defined as that the pressure applied to the elastic arm is not less than the rebound force of the elastic arm; the decompressed state is defined as that the pressure applied to the elastic arm is less than the rebound force of the elastic arm, so as to drive the bending portion to exit the second positioning hole of the lower box body.

[0013] Optionally, the outer dimensions of the side walls of the box body are adapted to the inner dimensions of the side walls of the lower box body.

[0014] Optionally, the first positioning hole of the side wall is arranged close to the bottom wall, and the side wall includes a first section and a second section; the bottom of the first section is connected to the bottom wall, and the second section is sleeved on the periphery of the first section; the height difference between the bottom of the second section and the bottom of the first section is h1, where h1≥0.

[0015] Optionally, a height difference between the top of the second section and the top of the first section is h2, where h2≥0.

[0016] Optionally, the first section and the bottom wall form a box cup, and the second section is a surrounding strip arranged on the periphery of the box cup.

[0017] Optionally, the box body includes the second locking hole and the opening area, wherein the second locking hole is provided on the second section of the side wall, and the box body is used as the lower box body.

[0018] The present application also provides a packaging box, comprising an upper box body and a lower box body stacked in sequence; wherein, the upper box body comprises the above-mentioned box body; wherein, the lower box body comprises at least one of the above-mentioned lower box bodies.

[0019] The box and packaging box provided by the present application are provided with an elastic sheet and a retaining hole for inserting the bent portion of the elastic sheet. When an item is placed into the box, the item presses against the elastic sheet, causing the bent portion of the elastic sheet to extend through the first retaining hole and insert into the second retaining hole of the lower box body, thereby securing the box body and covering the opening area of ​​the lower box body, thereby locking it with the lower box body. When the item is removed from the box body, the elastic sheet returns to its original shape, and the bent portion of the elastic sheet springs back, thereby releasing the lock with the lower box body. Thus, the lower box body can only be opened after the item in the upper box body is removed, ensuring that the user opens the package layer by layer in order from top to bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0021] Figure 1 A transparent diagram of a box provided in an embodiment of the present application;

[0022] Figure 2 A cross-sectional view of a box body provided in an embodiment of the present application;

[0023] Figure 3 This is a transparent diagram of a two-layer packaging box according to an embodiment of the present application;

[0024] Figure 4 This is a transparent image of a three-layer packaging box according to an embodiment of the present application;

[0025] Figure 5 This is a planar exploded view of a three-layer structure packaging box according to an embodiment of the present application;

[0026] Figure 6 This is a three-dimensional exploded view of the three-layer structure packaging box of an embodiment of the present application.

[0027] In the attached figure:

[0028] 1-box body; 100-box body; 110-bottom wall; 120-side wall; 121-first section; 122-second section; 124-first positioning hole; 125-second positioning hole; 200-spring; 210-elastic arm; 211-first end; 212-second end; 220-bending portion; 300-accommodating space; 301-opening area; 2-lower box body; 201-second positioning hole of the lower box body; 3-placed objects; 4-cover body.

[0029] The purpose of this application, its features, and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings. The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and the accompanying text are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of this application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0030] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0031] It should be noted that, in this document, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context of the specific embodiment.

[0032] It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are merely used to distinguish information of the same type from one another. For example, without departing from the scope of this document, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the term "if" as used herein may be interpreted as "at the time of," "when," or "in response to a determination." Furthermore, as used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms "comprising" and "including" indicate the presence of the described features, steps, operations, elements, components, items, types, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, types, and / or groups. The terms "or" and "and / or" as used herein are to be interpreted as inclusive, meaning any one or any combination. Thus, “A, B, or C” or “A, B, and / or C” means “any of: A; B; C; A and B; A and C; B and C; A, B, and C.” An exception to this definition occurs only when a combination of elements, functions, steps, or operations are inherently mutually exclusive in some manner.

[0033] It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0034] The embodiments of the present application provide a box body and a packaging box. Figure 1 This is a transparent diagram of a box body disclosed in an embodiment of the present application. Figure 2 This is a cross-sectional view of a box body disclosed in an embodiment of the present application. Figure 3 This is a perspective view of a two-layer packaging box disclosed in an embodiment of the present application. Figure 4 This is a perspective view of a three-layer packaging box disclosed in an embodiment of the present application. Figure 5 It is a planar exploded view of a three-layer packaging box disclosed in an embodiment of the present application. Figure 6 It is a three-dimensional exploded view of a packaging box with a three-layer structure disclosed in an embodiment of the present application.

[0035] like Figures 1 to 2 As shown, the box body 1 of the embodiment of the present invention includes a box body 100, including side walls 120 and a bottom wall 110, the side walls 120 and the bottom wall 110 form an accommodating space 300, and the side wall 120 is provided with a first positioning hole 124, wherein the accommodating space 300 is used to accommodate the placed object 3;

[0036] The elastic sheet 200 is located in the accommodating space 300 and includes an elastic arm 210 and a bent portion 220 located at the second end 212 of the elastic arm 210 .

[0037] The first end 211 of the elastic arm 210 is disposed on the side wall 120 , and the elastic arm 210 is bent in a direction away from the adjacent side wall 120 ;

[0038] Among them, the bending portion 220 is bent in the direction toward the adjacent side wall 120, and is used for extending the bending portion 220 through the first locking hole 124 to the outside of the box body 100 when the elastic arm 210 is in a compressed state, so as to be inserted into the second locking hole 201 of the lower box body, so that the box body 1 is fixed and covers the opening area 301 of the lower box body 2.

[0039] The box body 100 is used to place items. The shape and size of the box body 100 are not limited and can be flexibly determined according to the shape and size of the placed object 3, wherein the placed object 3 can be an item and / or a placement box for holding items.

[0040] The bottom wall 110 of the box body 100 can be a bottom wall with a perspective effect, for example, the bottom wall 110 can be made of a perspective material, or a hollow structure can be set on the bottom wall 110, or the bottom wall 110 of the box body 100 can also be a bottom wall 110 without a perspective effect. If the bottom wall 110 of the box body 100 is set as a bottom wall 110 with a perspective effect, then after the consumer removes the items placed in the box body 1, the items placed in the lower box body 2 can vaguely appear in front of the consumer through the bottom wall 110 of the upper box body, thereby making the consumer more excited about the items placed in the lower box body 2 and better guiding the consumer to continue opening the lower box body 2. If the bottom wall 110 is set as a bottom wall 110 without a perspective effect, the items placed in the lower box body 2 have a greater sense of unknown and mystery, which can also drive the consumer to continue opening the lower box body 2. In addition, in addition to producing the above-mentioned effects, the embodiment of providing a hollow structure on the bottom wall 110 can also release the pressure of the box body when placing items, so that the items can be placed in the box body 1 more smoothly and the box body 1 has good air permeability.

[0041] The spring piece 200 is located in the accommodation space 300 . Specifically, the first end 211 of the elastic arm 210 is disposed on the side wall 120 . The disposition method is not limited and the spring piece 200 may be fixed to the side wall 120 by bonding, clamping or bolts.

[0042] The spring piece 200 is located in the receiving space 300. Specifically, the first end 211 of the elastic arm 210 is fixed to the side wall 120. The fixing position is not limited and can be fixed to any position on the side wall 120 above the first retaining hole 124, but not covering the second retaining hole 125. The elastic arm 210 is used to elastically support the object 3 placed in the receiving space 300.

[0043] The bending portion 220 is located at the second end 212 of the elastic arm 210 . The elastic arm 210 and the bending portion 220 can be integrally formed, or connected together in any connection manner, which is not limited here.

[0044] The elastic arm 210 of the spring clip 200 gradually bends from the first end 211 to the second end 212, with the bending direction of the elastic arm 210 being opposite to the bending direction of the bent portion 220. For example, assuming that the box body 100 is in the shape of a rectangular parallelepiped, that is, the box body 100 includes four sidewalls 120, the first retaining hole 124 is provided in the first sidewall of the box body 100, and the first end 211 of the elastic arm 210 is fixed to the first sidewall, which is the sidewall 120 adjacent to the elastic arm 210 and the bent portion 220. In this case, the elastic arm 210 bends away from the first sidewall and gradually bends toward the second sidewall, which is opposite the first sidewall. The bent portion 220 of the spring clip 200 bends from the second end 212 of the elastic arm 210 toward the first sidewall, specifically, extending toward the first retaining hole 124. In the free state, the second end 212 of the elastic arm 210 does not contact the first side wall, but is at a certain distance from the first side wall. The bent portion 220 can extend into the first positioning hole 124 but does not extend out of the box body 100, or the bent portion 200 does not extend into the first positioning hole 124.

[0045] Through the above-mentioned setting method, the elastic arm 210 can be deformed when under pressure, and the bent portion 220 can smoothly extend to the outside of the box body 100 through the first positioning hole 124 after deformation; when the pressure of the elastic arm 210 is reduced or released, the deformation disappears, and the bent portion 220 can smoothly rebound under the drive of the elastic arm 210 and return to its original free state.

[0046] The length of the bent portion 220 is greater than the thickness of the side wall 120 , that is, when the elastic arm 210 is under pressure, the length of the bent portion 220 is sufficient to extend to the outside of the box body 100 and can penetrate into the second locking hole 201 of the lower box body to achieve locking.

[0047] When the box body 1 of the embodiment of the present application is in use, since the box body 1 is provided with a spring piece 200 and a retaining hole through which the bent portion 210 of the spring piece 200 can extend, when an object is placed in the box body 1, the placed object 3 can press the spring piece 200, causing the bent portion 220 of the spring piece 200 to extend through the first retaining hole 124 to the second retaining hole 201 of the lower box body, thereby achieving locking with the lower box body; when the object in the box body 1 is removed, the spring piece 200 returns to its original state, and the bent portion 220 of the spring piece 200 rebounds, thereby releasing the lock with the lower box body 2. It can be seen that the lower box body 2 can only be opened after the placed object 3 in the box body 1 is removed, which ensures that the user can open the packaging layer by layer in order from top to bottom.

[0048] In some optional embodiments, the number of the elastic fragments 200 is at least two, wherein at least two elastic fragments 200 are arranged opposite to each other.

[0049] There are at least two spring clips 200, with at least two spring clips 200 positioned opposite each other. When there are two spring clips 200, and they are positioned opposite each other, the upper box body 1 and the lower box body 2 can be locked securely, preventing the two locked boxes from loosening or unlocking during transportation. To further secure the lock, more than two spring clips 200 can be provided. For example, when the box body 1 has a large lateral dimension or a polygonal cross-section, more than two spring clips 200 can be provided to strengthen the lock. The specific number and pairing of the spring clips 200 are not limited herein.

[0050] In some optional embodiments, the compressed state is defined as the pressure on the elastic arm 210 being no less than the rebound force of the elastic arm 210; the decompressed state is defined as the pressure on the elastic arm 210 being less than the rebound force of the elastic arm 210. When the elastic arm 210 is in the compressed state, it drives the bent portion 220 to insert into the second retaining hole 201 of the lower case; when the elastic arm 210 is in the decompressed state, it drives the bent portion 220 to exit the second retaining hole 201 of the lower case.

[0051] The pressure exerted on the elastic arm 210 of the box body 1 includes at least the weight of the object 3, and may also include the pressure applied to the object 3 when the user wants to lock the box body 1 and the lower box body 2, as well as the weight of the upper box body of the box body 1 and the object placed on the upper box body.

[0052] In some optional embodiments, the outer dimensions of the side wall 120 of the box body 1 are adapted to the inner dimensions of the side wall of the lower box body 2 .

[0053] The outer dimensions of the sidewalls 120 of the box body 1 match the inner dimensions of the sidewalls of the lower box body 2, allowing the box body 1 to be inserted into the lower box body 2 and supported by the objects placed in the lower box body 2, so that the box body 1 covers the opening area 301 of the lower box body 2. At this time, when a rebound force no less than that of the elastic arm 210 is applied to the elastic arm 210 in the box body 1, the bent portion 220 passes through the first locking hole 124 and is inserted into the second locking hole 201 of the lower box body, so that the box body 1 covers and is fixed to the opening area 301 of the lower box body 2.

[0054] In some optional embodiments, the first locking hole 124 of the side wall 120 of the box body 1 is arranged close to the bottom wall 110, and the side wall 120 includes a first section 121 and a second section 122; the bottom of the first section 121 is connected to the bottom wall 110, and the second section 122 is arranged on the periphery of the first section 121, and the height difference between the bottom of the second section 122 and the bottom of the first section 121 is h1, where h1≥0.

[0055] The outer dimensions of the first section 121 of the side wall 120 of the box body 1 are adapted to the inner dimensions of the second section of the lower box body 2. When h1 ≥ 0, the first section 121 of the box body 1 can be inserted into the lower box body 2. At this time, the bottom of the second section 122 of the side wall 120 of the box body 1 abuts the top of the second section 122 of the side wall 120 of the lower box body 2, so that the box body 1 covers the opening area 301 of the lower box body 2. At this time, when a rebound force no less than that of the elastic arm 210 is applied to the elastic arm 210 in the box body 1, the bent portion 220 passes through the first locking hole 124 and is inserted into the second locking hole 201 of the lower box body, so that the box body 1 covers and is fixed to the opening area 301 of the lower box body 2.

[0056] In some optional embodiments, such as Figure 3 As shown, the height difference between the top of the second section 122 and the top of the first section 121 is h2, where h2≥0.

[0057] The outer dimensions of the first section 121 of the side wall 120 of the box body 1 are adapted to the inner dimensions of the second section of the lower box body 2. When h1 ≥ 0 and h2 ≥ 0, the first section 121 of the box body 1 can be sleeved into the lower box body 2. At this time, the bottom of the second section 122 of the side wall of the box body 1 abuts against the top of the second section of the side wall of the lower box body 2, and a portion of the bottom wall 110 of the box body 1 abuts against the top of the first section of the lower box body 2, so that the box body 1 covers the opening area 301 of the lower box body 2. At this time, when a rebound force no less than that of the elastic arm 210 is applied to the elastic arm 210 in the box body 1, the bent portion 220 passes through the first locking hole 124 and is inserted into the second locking hole 201 of the lower box body, so that the box body 1 covers and is stably fixed to the opening area 301 of the lower box body 2.

[0058] The second locking hole 125 of the box body 1 may or may not penetrate the side wall 120 of the box body 1, and this is not limited here. If the second locking hole 125 penetrates the side wall 120 of the box body 1, then when the box body 1 is stacked and locked with other boxes, it can be seen from the outside of the box body 1 that the bent portion 220 is within or extends out of the second locking hole 125. If the second locking hole 125 is not penetrated through the side wall 120 of the box body 1 for aesthetic considerations, it is optional.

[0059] In some optional embodiments, such as Figure 2 and Figure 3 As shown, the accommodating space 300 has an opening area 301 , and the box body 1 further includes a cover body 4 for opening or covering the opening area 301 of the accommodating space 300 .

[0060] In some optional embodiments, the size of the box cover 4 of the box body 1 is adapted to the size of the opening area 301, which can ensure that the box cover 4 is embedded in the second section 122 of the box body 1. At this time, the box cover 4 abuts against the top of the first section 121 to form a stable cover that is not easy to fall off.

[0061] In some optional embodiments, the first section 121 and the bottom wall 110 form a box cup, and the second section 122 is a surrounding strip arranged on the periphery of the box cup.

[0062] In some optional embodiments, the box body 1 includes a second locking hole 125 and an opening area 301, wherein the second locking hole 125 is provided on the second section 122 of the side wall 120, and the box body is used as a lower box body and / or a bottom box.

[0063] The present application also provides a packaging box, such as Figures 3 to 6 As shown, it includes an upper box body and a lower box body 2 stacked in sequence; wherein, the upper box body includes the above-mentioned box body 1; wherein, the lower box body 2 includes at least one of the above-mentioned lower box bodies 2.

[0064] like Figure 3 The two-layer packaging box shown comprises two stacked boxes: a box body 1 and a lower box body 2. Lower box body 2 is positioned below box body 1 and has a second locking hole 201 defined in its sidewall. When the two boxes are stacked, the second locking hole 201 of the lower box body communicates with the first locking hole 124 of box body 1. When an item is placed into box body 1, the spring 200 of box body 1 is compressed, causing the bent portion 220 to extend through the first locking hole 124 and into the second locking hole 201 of the lower box body, thereby locking box body 1 and lower box body 2. When the items placed in the box body 1 are taken out, the spring piece 200 of the box body 1 returns to its original shape, and the bent portion 220 rebounds from the second locking hole 201 and the first locking hole 124 of the lower box body, thereby releasing the lock between the box body 1 and the lower box body 2. At this time, the lower box body 2 can be opened and the items placed in the lower box body 2 can be taken out.

[0065] In some optional embodiments, such as Figures 4 to 6 The three-layer packaging box shown in the figure specifically comprises a box body 1 and two lower boxes 2. The locking and unlocking methods for the two adjacent boxes are the same as described above. When using the packaging box, the user can only open the lower box body after removing the items from the upper box body. This ensures that the user opens the package layer by layer from top to bottom.

[0066] In some optional embodiments, the packaging box includes a box body 1 and two or more lower box bodies 2, forming a four-layer packaging box, a five-layer packaging box, a six-layer packaging box, or even more. The locking and unlocking process between the box bodies is the same as described above. When using the packaging box, the user can only open the lower box body after removing the items in the upper box body, ensuring that the user opens the package layer by layer from top to bottom.

[0067] In some optional embodiments, such as Figure 3 As shown, the packaging box also includes an item placement box 3, the size of which is adapted to the accommodating space 300 of the box body 1. When the item placement box 3 is placed in the accommodating space 300, the item placement box 3 squeezes the spring piece 200 so that the bent portion 220 of the spring piece 200 extends through the first positioning hole 124 of the box body 1 to the second positioning hole 201 extending into the lower box body.

[0068] The size of the item placement box 3 of the packaging box should not be larger than the storage space 300, and the maximum lateral dimension of the item placement box 3 should be larger than the minimum distance between the two oppositely positioned spring tabs 200 when in a free state. In other words, the size of the item placement box 3 must meet the following requirements: 1. Ensure that the item placement box 3 can be smoothly inserted into the storage space 300 of the box body 1; 2. Ensure that when the item placement box 3 is inserted into the box body 1, it can squeeze the spring tabs 200 and allow the bent portion 220 of the spring tabs to extend through the first locking hole 124 of the box body 1 and into the second locking hole 201 extending into the lower box body, thereby achieving locking.

[0069] In some optional embodiments, the packaging box may not include the item placement box 3. When using the packaging box, items that match the accommodating space 300 can be directly placed into the box body 1. Similarly, when the size of the item itself meets the above conditions, the above locking process can also be achieved.

[0070] Let's take electronic products as an example. Besides the main unit, the items to be packaged also include a wide range of accessories, such as chargers, data cables, SIM cards, earphones, protective cases, commemorative stickers, souvenirs, and instructions. The electronic products are packaged in the three-layer packaging box described above. The specific process is as follows:

[0071] First, place the included accessories (SIM card pin, earphones, protective case, etc.) into the third layer of the box;

[0072] Secondly, place important accessories (charger, data cable, etc.) in the second layer of the box, and lock the third layer of the box with the second layer of the box;

[0073] Finally, place the main unit in the first layer of the box body, lock the second layer of the box body with the first layer of the box body, and close the box cover 4.

[0074] According to the above preset packaging order, when consumers open the packaging box, they can unlock the second layer of the box only after opening the box cover 4 and taking out the main unit; they can unlock the third layer only after opening the second layer of the box and taking out important accessories; finally, they can open the third layer and take out other included accessories from the third layer.

[0075] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A box body, characterized in that: include: The box body includes a side wall and a bottom wall, wherein the side wall and the bottom wall form a receiving space, and the side wall is provided with a first positioning hole, wherein the receiving space is used to receive objects; an elastic sheet located in the accommodating space, the elastic sheet comprising an elastic arm and a bent portion located at a second end of the elastic arm; Wherein, the first end of the elastic arm is provided on the side wall, and the elastic arm is bent in a direction away from the adjacent side wall; The bent portion is bent in a direction toward the adjacent side wall, and is used for extending through the first locking hole to the outside of the box body when the elastic arm is in a compressed state, so as to be inserted into the second locking hole of the lower box body, so that the box body is fixed and covers the opening area of ​​the lower box body; The elastic arm is used to elastically support the placed object, and the elastic arm includes the compressed state and the decompressed state; The compressed state is defined as that the pressure on the elastic arm is not less than the rebound force of the elastic arm; The decompression state is defined as that the pressure on the elastic arm is less than the rebound force of the elastic arm, so as to drive the bent portion to exit the second positioning hole of the lower box body.

2. The box body according to claim 1, characterized in that: The number of the spring pieces is at least two, wherein at least two of the spring pieces are arranged opposite to each other.

3. The box body according to claim 1, characterized in that: The accommodating space has the opening area, and the box body further includes a cover body for opening or covering the opening area of ​​the accommodating space.

4. The box body according to claim 1, characterized in that: The outer dimensions of the side walls of the box body are adapted to the inner dimensions of the side walls of the lower box body.

5. The box body according to claim 1, characterized in that: The first positioning hole of the side wall is arranged close to the bottom wall, and the side wall includes a first section and a second section; The bottom of the first section is connected to the bottom wall, and the second section is sleeved on the periphery of the first section; A height difference between the bottom of the second section and the bottom of the first section is h1, where h1≥0.

6. The box body according to claim 5, characterized in that: A height difference between the top of the second section and the top of the first section is h2, where h2≥0.

7. The box body according to claim 5 or 6, characterized in that: The first section and the bottom wall form a box cup, and the second section is a surrounding strip arranged on the periphery of the box cup.

8. The box body according to claim 5 or 6, characterized in that: The second locking hole and the opening area are included, wherein the second locking hole is provided on the second section of the side wall. The box body is used as the lower box body.

9. A packaging box, characterized in that: It comprises an upper box body and a lower box body stacked in sequence; Wherein, the upper box body comprises the box body according to any one of claims 1 to 7; Wherein, the lower box body includes at least one box body as claimed in claim 8.

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