Packaging structure

Abstract

The utility model provides a packaging structure. The packaging structure wraps the middle of a to-be-packaged workpiece and comprises two oppositely-arranged main body parts and a packaging part, the wrapping part set is arranged between the two main body parts, so that the wrapping part set and the two main body parts form a containing cavity used for wrapping a to-be-packaged workpiece in a surrounding mode; the coating part group comprises a first coating part and a second coating part, the first coating part is arranged on one main body part and comprises a first tooth-shaped part, and the second coating part is arranged on the other main body part and comprises a second tooth-shaped part; wherein the first tooth-shaped part is meshed with the second tooth-shaped part so as to connect the two main body parts. According to the utility model, the problem that the processing cost of a protective piece for packaging the middle part of a product in the prior art is higher is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of home appliance packaging technology, and more specifically, to a packaging structure. Background Technology

[0002] Currently, electric heaters and tower fans are relatively long and have a sheet metal exterior, making them prone to deformation under localized stress. Therefore, when packaging these products, in addition to installing protective parts at both ends, protective parts are also added in the middle. This increases the stress-bearing area and improves the cushioning effect, while also serving as a step-proof board to prevent the internal sheet metal from being deformed by delivery personnel stepping on the packaging box during transportation.

[0003] In existing technology, the protective component installed in the middle is formed by the mating of two sub-protective components. A rib is machined on one sub-protective component, and a groove is machined on the other sub-protective component, so that the two sub-protective components are connected by the cooperation of the rib and the groove. However, the above design requires separate molds to process the two sub-protective components, which increases the processing cost. Utility Model Content

[0004] The main objective of this invention is to provide a packaging structure that addresses the problem of high processing costs for protective components used in packaging the middle of a product in the prior art.

[0005] To achieve the above objectives, this utility model provides a packaging structure that covers the middle of a workpiece to be packaged. The packaging structure includes: two opposing main body parts; a covering part group disposed between the two main body parts to form a receiving cavity for covering the workpiece to be packaged; the covering part group includes a first covering part and a second covering part, the first covering part being disposed on one main body part and including a first toothed part, and the second covering part being disposed on the other main body part and including a second toothed part; wherein the first toothed part and the second toothed part engage to connect the two main body parts.

[0006] Furthermore, there are at least two covering parts, and the at least two covering parts are spaced apart along a preset direction, with the preset direction forming an angle with the extension direction of the workpiece to be packaged.

[0007] Further, along the extension direction of the workpiece to be packaged, the first toothed portion includes at least two first protrusions and at least one first recess, with at least one first recess disposed between two adjacent first protrusions; or, the first toothed portion includes at least two first recesses and at least one first protrusion, with at least one first protrusion disposed between two adjacent first recesses; along the extension direction of the workpiece to be packaged, the second toothed portion includes at least two second protrusions and at least one second recess, with at least one second recess disposed between two adjacent second protrusions; or, the second toothed portion includes at least two second recesses and at least one second protrusion, with at least one second protrusion disposed between two adjacent second recesses; wherein, the first protrusion extends into the second recess and is adapted to the second recess, and the second protrusion extends into the first recess and is adapted to the first recess.

[0008] Furthermore, the first covering portion further includes a first covering body, the two sides of which are respectively connected to a main body portion and a first toothed portion, and the thickness b of the first toothed portion is less than or equal to the thickness B of the first covering body portion; and / or, the second covering portion further includes a second covering body, the two sides of which are respectively connected to another main body portion and a second toothed portion, and the thickness b' of the second toothed portion is less than or equal to the thickness B' of the second covering body portion.

[0009] Furthermore, the height M of the first covering portion and the height h of the first toothed portion satisfy the following condition: 1 / 5M≤h≤1 / 3M; and / or, the height M' of the second covering portion and the height h' of the second toothed portion satisfy the following condition: 1 / 5M'≤h'≤1 / 3M'.

[0010] Furthermore, the height H of the covering portion group, the height M of the first covering portion, and the height h of the first toothed portion satisfy the following relationship: M = 1 / 2H + 1 / 2h; and / or, the height H of the covering portion group, the height M' of the second covering portion, and the height h' of the second toothed portion satisfy the following relationship: M' = 1 / 2H + 1 / 2h'.

[0011] Furthermore, along the direction from the first toothed portion to the first covering body, the width of the first protrusion gradually increases and the width of the first recess gradually decreases; and / or, along the direction from the second toothed portion to the second covering body, the width of the second protrusion gradually increases and the width of the second recess gradually decreases.

[0012] Furthermore, the first protrusion is plate-shaped, and the side of the first protrusion includes a first inclined surface, a first plane, and a second inclined surface connected in sequence, with the first inclined surface and the second inclined surface located on the same side of the first plane; and / or, the second protrusion is plate-shaped, and the side of the second protrusion includes a third inclined surface, a second plane, and a fourth inclined surface connected in sequence, with the third inclined surface and the fourth inclined surface located on the same side of the second plane.

[0013] Furthermore, the covering portion assembly has a meshing center point O, and the first toothed portion has a first protrusion and a first recess located on both sides of the meshing center point O and at the same distance from the meshing center point O, which are centrally symmetrical about the meshing center point O; and / or, the second toothed portion has a second protrusion and a second recess located on both sides of the meshing center point O and at the same distance from the meshing center point O, which are centrally symmetrical about the meshing center point O.

[0014] Furthermore, the first covering part and / or the second covering part have a remote control slot; and / or, the first covering part and / or the second covering part have a clearance slot.

[0015] By applying the technical solution of this utility model, a packaging structure covers the middle of the workpiece to be packaged. The packaging structure includes two opposing main body parts and a covering part assembly. The covering part assembly is disposed between the two main body parts to form a receiving cavity for covering the workpiece to be packaged. The covering part assembly includes a first covering part and a second covering part. The first covering part is disposed on one main body part and includes a first toothed portion, and the second covering part is disposed on the other main body part and includes a second toothed portion. The first toothed portion and the second toothed portion engage to connect the two main body parts. Thus, the interlocking portion of the first covering part and the second covering part is designed to allow the first and second covering parts to be interchangeable, requiring only one mold for processing. This reduces mold opening costs, shortens the identification time for similar materials, improves production efficiency, and solves the problem of high processing costs for protective components used in packaging the middle of products in the prior art. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A three-dimensional structural diagram of an embodiment of the packaging structure according to the present invention and the workpiece to be packaged after assembly is shown.

[0018] Figure 2 It shows Figure 1 The packaging structure and the front view of the assembled workpiece to be packaged;

[0019] Figure 3 It shows Figure 1 A three-dimensional structural diagram of the packaging structure in the image;

[0020] Figure 4 It shows Figure 3 Side view of the packaging structure;

[0021] Figure 5 It shows Figure 4 Front view of the first covering part of the packaging structure;

[0022] Figure 6 It shows Figure 4 Front view of the second covering part of the packaging structure;

[0023] Figure 7 A three-dimensional structural diagram of the packaging structure according to Embodiment 2 of the present invention and the workpiece to be packaged after assembly is shown.

[0024] Figure 8 It shows Figure 7 A three-dimensional structural diagram of the packaging structure in the image;

[0025] Figure 9 It shows Figure 8 A side view of the packaging structure.

[0026] The above figures include the following reference numerals:

[0027] 10. Workpiece to be packaged; 20. Main body; 30. First covering part; 31. First toothed part; 311. First protrusion; 312. First recess; 32. First covering body; 40. Second covering part; 41. Second toothed part; 411. Second protrusion; 412. Second recess; 42. Second covering body; 50. Remote control slot; 60. Clearance slot. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, directional terms such as "upper" and "lower" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" are generally used in relation to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] To address the high processing cost of protective components used for packaging the middle of a product in existing technologies, this application provides a packaging structure.

[0032] Example 1

[0033] like Figures 1 to 6 As shown, the packaging structure covers the middle of the workpiece 10 to be packaged. The packaging structure includes two opposing main body parts 20 and a covering part assembly. The covering part assembly is disposed between the two main body parts 20 to form a receiving cavity for covering the workpiece 10 to be packaged. The covering part assembly includes a first covering part 30 and a second covering part 40. The first covering part 30 is disposed on one main body part 20 and includes a first toothed part 31, and the second covering part 40 is disposed on the other main body part 20 and includes a second toothed part 41. The first toothed part 31 and the second toothed part 41 engage with each other to connect the two main body parts 20.

[0034] By applying the technical solution of this embodiment, the interlocking portion of the first covering part 30 and the second covering part 40 is designed as the meshing of the first toothed part 31 and the second toothed part 41, so that the first covering part 30 and the second covering part 40 can be used interchangeably and can be processed with only one mold, thereby reducing the mold opening cost, reducing the identification time of similar materials, improving production efficiency, and solving the problem of high processing cost of protective parts for packaging the middle of products in the prior art.

[0035] In this embodiment, the structures of the first covering part 30 and the second covering part 40 are completely identical. After the first covering part 30 is horizontally rotated 180°, its shape is completely identical to that of the second covering part 40. The main body part 20 is flat, and its inner surface abuts against the top surface of the workpiece 10 to be packaged, and the shape of its inner surface matches the shape of the workpiece 10 to be packaged. The outer surface of the main body part 20 abuts against the inner wall of the packaging box.

[0036] In this embodiment, the first covering part 30 and the second covering part 40 abut against the front and back of the workpiece 10 to be packaged, respectively, and the shape of their inner surfaces matches the shape of the workpiece 10 to be packaged.

[0037] In this embodiment, there is one covering part group, which is disposed in the middle of the workpiece 10 to be packaged.

[0038] It should be noted that the number of covering components is not limited to this and can be adjusted according to working conditions and usage requirements.

[0039] Optionally, there are at least two covering parts, and the at least two covering parts are spaced apart along a preset direction, with the preset direction forming an angle with the extension direction of the workpiece 10 to be packaged. Optionally, the preset direction is perpendicular to the extension direction of the workpiece 10 to be packaged. In this way, by increasing the number of covering parts, the protective effect of the packaging structure on the workpiece 10 to be packaged can be further enhanced.

[0040] Specifically, by setting up covering assemblies at multiple locations in the middle of the workpiece 10 to be packaged, an all-round protective network can be formed, which can effectively protect the workpiece 10 from damage even if it is subjected to multi-directional impacts during transportation.

[0041] like Figure 5 and Figure 6 As shown, along the extending direction of the workpiece 10 to be packaged, the first toothed portion 31 includes at least two first protrusions 311 and at least one first recess 312, with at least one first recess 312 disposed between two adjacent first protrusions 311; or, the first toothed portion 31 includes at least two first recesses 312 and at least one first protrusion 311, with at least one first protrusion 311 disposed between two adjacent first recesses 312. Along the extending direction of the workpiece 10 to be packaged, the second toothed portion 41 includes at least two second protrusions 411 and at least one second recess 412, with at least one second recess 412 disposed between two adjacent second protrusions 411; or, the second toothed portion 41 includes at least two second recesses 412 and at least one second protrusion 411, with at least one second protrusion 411 disposed between two adjacent second recesses 412. Specifically, the first protrusion 311 extends into and is adapted to the second recess 412, and the second protrusion 411 extends into and is adapted to the first recess 312. This arrangement prevents the packaging structure from sliding or moving along the extension direction of the workpiece 10 to be packaged, thereby improving the packaging reliability.

[0042] In this embodiment, the first toothed portion 31 includes two first protrusions 311 and two first recesses 312, with a first recess 312 disposed between two adjacent first protrusions 311 and a first protrusion 311 disposed between two adjacent first recesses 312. The second toothed portion 41 includes two second protrusions 411 and two second recesses 412, with a second recess 412 disposed between two adjacent second protrusions 411 and a second protrusion 411 disposed between two adjacent second recesses 412.

[0043] Specifically, the above-mentioned arrangement of the first toothed portion 31 and the second toothed portion 41 enables the packaging structure to ensure a tight fit to the workpiece 10 to be packaged while also facilitating disassembly and assembly, reducing the difficulty of packaging and disassembly, so as to achieve rapid packaging and disassembly, and also ensures that the packaging structure still maintains a good fixing effect after multiple operations, avoiding loosening or damage caused by long-term use.

[0044] It should be noted that the number of first protrusions 311 on the first toothed portion 31 is not limited to this and can be adjusted according to working conditions and usage requirements. Optionally, the first toothed portion 31 may be provided with three, four, five, or more first protrusions 311.

[0045] It should be noted that the number of first recesses 312 on the first toothed portion 31 is not limited to this and can be adjusted according to working conditions and usage requirements. Optionally, the first toothed portion 31 may be provided with three, four, five, or more first recesses 312.

[0046] It should be noted that the number of second protrusions 411 on the second toothed portion 41 is not limited to this and can be adjusted according to working conditions and usage requirements. Optionally, the second toothed portion 41 may be provided with three, four, five, or more second protrusions 411.

[0047] It should be noted that the number of second recesses 412 on the second toothed portion 41 is not limited to this, and can be adjusted according to working conditions and usage requirements. Optionally, the second toothed portion 41 may be provided with three, four, five, or more second recesses 412.

[0048] Optionally, the first covering portion 30 further includes a first covering body 32, with its two sides connected to a main body portion 20 and a first toothed portion 31, respectively. The thickness b of the first toothed portion 31 is less than or equal to the thickness B of the first covering body 32. And / or, the second covering portion 40 further includes a second covering body 42, with its two sides connected to another main body portion 20 and a second toothed portion 41, respectively. The thickness b' of the second toothed portion 41 is less than or equal to the thickness B' of the second covering body 42. In this way, the aforementioned thickness design ensures the overall strength and stability of the packaging structure. Simultaneously, by adjusting the thickness of the first toothed portion 31 and / or the second toothed portion 41, the packaging structure can better adapt to workpieces 10 of different sizes to be packaged, thus improving the applicability of the packaging structure.

[0049] In this embodiment, the thickness b of the first toothed portion 31 is less than or equal to the thickness B of the first covering body 32, and the thickness b' of the second toothed portion 41 is less than or equal to the thickness B' of the second covering body 42.

[0050] Optionally, the thickness B of the first covering body 32 and the thickness B' of the second covering body 42 are equal.

[0051] Optionally, the height M of the first covering portion 30 and the height h of the first toothed portion 31 satisfy the following relationship: 1 / 5M ≤ h ≤ 1 / 3M; and / or, the height M' of the second covering portion 40 and the height h' of the second toothed portion 41 satisfy the following relationship: 1 / 5M' ≤ h' ≤ 1 / 3M'. In this way, the above-mentioned height ratio settings ensure that the packaging structure provides sufficient protection while maintaining good ease of assembly and disassembly, avoiding secondary damage to the packaged workpiece 10 during packaging and disassembly, and improving the practicality of the packaging structure.

[0052] In this embodiment, the height M of the first covering portion 30 and the height h of the first toothed portion 31 satisfy the condition: 1 / 5M≤h≤1 / 3M, and the height M' of the second covering portion 40 and the height h' of the second toothed portion 41 satisfy the condition: 1 / 5M'≤h'≤1 / 3M', thereby improving the limiting effect of the first toothed portion 31 and the second toothed portion 41.

[0053] Optionally, the height H of the covering part assembly, the height M of the first covering part 30, and the height h of the first toothed part 31 satisfy the following relationship: M = 1 / 2H + 1 / 2h; and / or, the height H of the covering part assembly, the height M' of the second covering part 40, and the height h' of the second toothed part 41 satisfy the following relationship: M' = 1 / 2H + 1 / 2h'. In this way, the above height design method makes the packaging structure more scientifically and rationally designed, effectively protecting the workpiece 10 to be packaged, saving materials, and reducing packaging costs.

[0054] In this embodiment, the height H of the covering part group, the height M of the first covering part 30, and the height h of the first toothed part 31 satisfy the following relationship: M = 1 / 2H + 1 / 2h. Furthermore, the height H of the covering part group, the height M' of the second covering part 40, and the height h' of the second toothed part 41 satisfy the following relationship: M' = 1 / 2H + 1 / 2h'. This improves the limiting effect of the first toothed part 31 and the second toothed part 41.

[0055] Optionally, along the direction from the first toothed portion 31 to the first covering body 32, the width of the first protrusion 311 gradually increases, and the width of the first recess 312 gradually decreases; and / or, along the direction from the second toothed portion 41 to the second covering body 42, the width of the second protrusion 411 gradually increases, and the width of the second recess 412 gradually decreases. This gradually changing width design allows the packaging structure to absorb external forces through the deformation of the protrusions and recesses when subjected to impact, protecting the workpiece 10 to be packaged, extending the service life of the packaging structure, and reducing long-term maintenance costs. Simultaneously, the above arrangement makes the assembly and disassembly of the first toothed portion 31 and the second toothed portion 41 easier and simpler, reducing the difficulty of assembly and disassembly.

[0056] Optionally, the first protrusion 311 is plate-shaped, and its side includes a first inclined surface, a first plane, and a second inclined surface connected in sequence, with the first and second inclined surfaces located on the same side of the first plane; and / or, the second protrusion 411 is plate-shaped, and its side includes a third inclined surface, a second plane, and a fourth inclined surface connected in sequence, with the third and fourth inclined surfaces located on the same side of the second plane. In this way, the above-mentioned arrangement of the protrusions can effectively disperse external forces and reduce internal damage caused by impact. Simultaneously, the design of the inclined surfaces allows the packaging structure to absorb energy through deformation when subjected to impact, further improving the safety and reliability of the packaging.

[0057] like Figure 5 and Figure 6 As shown, the covering assembly has an engagement center point O. A first protrusion 311 and a first recess 312 on the first toothed portion 31, located on both sides of the engagement center point O and equidistant from it, are centrally symmetrical about the engagement center point O. And / or, a second protrusion 411 and a second recess 412 on the second toothed portion 41, located on both sides of the engagement center point O and equidistant from it, are centrally symmetrical about the engagement center point O. This centrally symmetrical design ensures that the packaging structure can evenly distribute pressure when subjected to external forces, avoiding structural damage caused by excessive force on one side. It also ensures the stability of the workpiece 10 during the packaging process, reducing the risk of part displacement or damage due to transportation bumps, thereby improving packaging safety and efficiency and reducing quality risks caused by improper packaging.

[0058] Optionally, the first covering part 30 and / or the second covering part 40 have a clearance groove 60. In this way, by setting the clearance groove, not only can the special structure of the workpiece 10 to be packaged, such as the keyboard, be protected from damage during packaging and transportation, but also the reserved operating interface space allows users to perform basic operations, such as checking whether the equipment is working properly and previewing the displayed content, without disassembling the packaging, thus greatly improving the user experience of the product.

[0059] Example 2

[0060] The packaging structure in Example 2 differs from that in Example 1 in that the structures of the first covering part 30 and / or the second covering part 40 are different.

[0061] Optionally, the first covering part 30 and / or the second covering part 40 have a remote control slot 50. By providing the remote control slot, not only can the remote control of the workpiece 10 be protected from damage during packaging and transportation, but the reserved operating interface space also allows users to perform basic operations, such as checking if the equipment is functioning properly and previewing displayed content, without disassembling the packaging, thus greatly improving the user experience.

[0062] like Figures 7 to 9 As shown, the first covering part 30 has a remote control slot 50.

[0063] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0064] The packaging structure covers the middle of the workpiece to be packaged. The packaging structure includes two opposing main body parts and a covering part assembly. The covering part assembly is positioned between the two main body parts to form a receiving cavity for covering the workpiece. The covering part assembly includes a first covering part and a second covering part. The first covering part is disposed on one main body part and includes a first toothed portion, while the second covering part is disposed on the other main body part and includes a second toothed portion. The first toothed portion and the second toothed portion engage to connect the two main body parts. Thus, the interlocking portion of the first and second covering parts is designed with the first and second toothed portions engaging, allowing the first and second covering parts to be interchangeable. Only one mold is needed for processing, thereby reducing mold opening costs, shortening the identification time for similar materials, improving production efficiency, and solving the problem of high processing costs for protective components used in packaging the middle of products in existing technologies.

[0065] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0066] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0067] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0068] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A packaging structure covering the middle of a workpiece (10) to be packaged, characterized in that, The packaging structure includes: Two opposing main body sections (20); A covering assembly is disposed between two main body portions (20) to form a receiving cavity for covering the workpiece (10) to be packaged, surrounding the two main body portions (20); the covering assembly includes a first covering portion (30) and a second covering portion (40), the first covering portion (30) being disposed on one main body portion (20) and including a first toothed portion (31), and the second covering portion (40) being disposed on the other main body portion (20) and including a second toothed portion (41); The first toothed portion (31) engages with the second toothed portion (41) to connect the two main body portions (20).

2. The packaging structure according to claim 1, characterized in that, The covering part group is at least two, and the at least two covering part groups are arranged at intervals along a preset direction, and the preset direction is arranged at an angle to the extension direction of the workpiece (10) to be packaged.

3. The packaging structure according to claim 1, characterized in that, Along the extending direction of the workpiece (10) to be packaged, the first toothed portion (31) includes at least two first protrusions (311) and at least one first recess (312), with at least one first recess (312) disposed between two adjacent first protrusions (311); or, the first toothed portion (31) includes at least two first recesses (312) and at least one first protrusion (311), with at least one first protrusion (311) disposed between two adjacent first recesses (312); Along the extending direction of the workpiece (10) to be packaged, the second toothed portion (41) includes at least two second protrusions (411) and at least one second recess (412), with at least one second recess (412) disposed between two adjacent second protrusions (411); or, the second toothed portion (41) includes at least two second recesses (412) and at least one second protrusion (411), with at least one second protrusion (411) disposed between two adjacent second recesses (412); The first protrusion (311) extends into the second recess (412) and is adapted to the second recess (412), and the second protrusion (411) extends into the first recess (312) and is adapted to the first recess (312).

4. The packaging structure according to claim 3, characterized in that, The first covering portion (30) further includes a first covering body (32), the two sides of which are respectively connected to a main body portion (20) and the first toothed portion (31), the thickness b of the first toothed portion (31) being less than or equal to the thickness B of the first covering body (32); and / or, The second covering portion (40) further includes a second covering body (42), the two sides of which are connected to another body portion (20) and the second toothed portion (41) respectively, and the thickness b' of the second toothed portion (41) is less than or equal to the thickness B' of the second covering body (42).

5. The packaging structure according to claim 1, characterized in that, The height M of the first covering portion (30) and the height h of the first toothed portion (31) satisfy the following condition: 1 / 5M ≤ h ≤ 1 / 3M; and / or, The height M' of the second covering part (40) and the height h' of the second toothed part (41) satisfy the following condition: 1 / 5M'≤h'≤1 / 3M'.

6. The packaging structure according to claim 1, characterized in that, The height H of the covering part group, the height M of the first covering part (30) and the height h of the first toothed part (31) satisfy the following: M = 1 / 2H + 1 / 2h; and / or, the height H of the covering part group, the height M' of the second covering part (40) and the height h' of the second toothed part (41) satisfy the following: M' = 1 / 2H + 1 / 2h'.

7. The packaging structure according to claim 4, characterized in that, Along the direction from the first toothed portion (31) to the first covering body (32), the width of the first protrusion (311) gradually increases, and the width of the first recess (312) gradually decreases; and / or, Along the direction from the second toothed portion (41) to the second covering body (42), the width of the second protrusion (411) gradually increases, and the width of the second recess (412) gradually decreases.

8. The packaging structure according to claim 3, characterized in that, The first protrusion (311) is plate-shaped, and its side includes a first inclined surface, a first plane, and a second inclined surface connected in sequence. The first inclined surface and the second inclined surface are located on the same side of the first plane; and / or, The second protrusion (411) is plate-shaped, and the side of the second protrusion (411) includes a third inclined surface, a second plane and a fourth inclined surface connected in sequence. The third inclined surface and the fourth inclined surface are located on the same side of the second plane.

9. The packaging structure according to claim 3, characterized in that, The covering portion assembly has a meshing center point O, and the first protrusion (311) and the first recess (312) on the first toothed portion (31) are located on both sides of the meshing center point O and are equidistant from the meshing center point O, and are centrally symmetrical about the meshing center point O; and / or, the second protrusion (411) and the second recess (412) on the second toothed portion (41) are located on both sides of the meshing center point O and are equidistant from the meshing center point O, and are centrally symmetrical about the meshing center point O.

10. The packaging structure according to claim 1, characterized in that, The first covering part (30) and / or the second covering part (40) have a remote control slot (50); and / or, the first covering part (30) and / or the second covering part (40) have a clearance slot (60).

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