Packaging box
By setting limiting plates and limiting components in the packaging box of the electrode rolls, the problem of slippage and collision during transportation is solved, and the electrode rolls are effectively protected.
Patent Information
- Application Number
- CN202520288922.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-21
AI Technical Summary
The existing electrode roll packaging boxes do not have length-direction limiting, which causes the electrode rolls to slide, collide, tilt and fall during transportation, resulting in product damage.
Design a packaging box comprising a box body, first and second limiting plates, and detachable limiting components. The movement and swing of the electrode roll are restricted by fixing holes and limiting components, and the electrode roll is protected by metal limiting components and buffer components.
It effectively prevents the electrode rolls from moving and swinging inside the packaging box, protects the electrode rolls and packaging box from damage, adapts to electrode rolls of different sizes, and reduces the risk of collision during transportation.
Smart Images
Figure CN223891580U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wafer packaging technology, and more specifically, to a packaging box. Background Technology
[0002] Electrode rolls refer to the core formed after electrode sheets are wound. Before transporting electrode rolls, they need to be packaged in boxes to ensure their quality. The current packaging method for electrode rolls is to use wooden crates; the product is wound onto a roll and placed on the lower partition of the wooden crate; then the side panels of the wooden crate are placed, followed by the upper partition, and finally the crate is sealed.
[0003] However, existing common electrode roll packaging box structures do not limit the length of the electrode roll or have gaps between the limits, causing the electrode roll product to slide back and forth along the length of the box. During long-distance transportation, collisions, tilting, and drops may occur. Because the packaging box does not limit the length, the side panels of the box may crack, and the rolled product may hit the side panels of the wooden box, causing product damage. Utility Model Content
[0004] This utility model provides a packaging box that can prevent the electrode roll from moving or swinging inside the packaging box, thereby preventing damage to the electrode roll or the packaging box.
[0005] The embodiments of this utility model can be implemented as follows:
[0006] An embodiment of this utility model provides a packaging box, which includes:
[0007] The housing has a receiving cavity;
[0008] A first limiting plate and a second limiting plate are located within the receiving cavity and are both connected to the inner wall of the box body; the first limiting plate and the second limiting plate are spaced apart along the length direction of the box body;
[0009] The first limiting plate has a first fixing hole for fixing one end of the electrode roll; the second limiting plate has a second fixing hole for fixing the other end of the electrode roll.
[0010] A first limiting member is disposed on the side of the first limiting plate away from the second limiting plate, and the first limiting member is used to abut against the end face of the pole roll;
[0011] The second limiting member is disposed on the side of the second limiting plate away from the first limiting plate, and the second limiting member is used to abut against the other end face of the pole roll.
[0012] In an optional embodiment, the first limiting member is detachably connected to the first limiting plate, and / or the second limiting member is detachably connected to the second limiting plate.
[0013] In an optional embodiment, the packaging box further includes a first connector, the first limiting plate is provided with the first connector, the first limiting plate is provided with a first mounting hole, and the first connector cooperates with the first mounting hole to realize the first limiting plate and the first limiting plate being detachably connected.
[0014] And / or, the second limiting plate is provided with a second connector, the second limiting member is provided with a second mounting hole, and the second connector cooperates with the second mounting hole to realize the detachable connection between the second limiting plate and the second limiting member.
[0015] In an optional embodiment, one end of the first connector is located inside the first limiting plate, and the other end of the first connector protrudes from the side of the first limiting plate away from the second limiting plate.
[0016] And / or, one end of the second connector is located inside the second limiting plate, and the other end of the second connector protrudes from the side of the second limiting plate away from the first limiting plate.
[0017] In an optional embodiment, the first limiting member is U-shaped, and / or the second limiting member is U-shaped.
[0018] In an optional embodiment, the first limiting plate includes a first upper limiting plate and a first lower limiting plate. The first upper limiting plate has a first hole, and the first lower limiting plate has a second hole. The first hole and the second hole together form the first fixing hole.
[0019] And / or, the second limiting plate includes a second upper limiting plate and a second lower limiting plate, the second upper limiting plate having a third hole and the second lower limiting plate having a fourth hole, the third hole and the fourth hole together forming the second fixing hole.
[0020] In an optional embodiment, the packaging box further includes a cushioning element disposed between the first limiting plate and the electrode roll, and / or, the cushioning element is disposed between the second limiting plate and the electrode roll.
[0021] In an optional embodiment, the cushioning element is foam, and / or the thickness of the cushioning element is 5mm to 30mm.
[0022] In an optional embodiment, the thickness of the first limiting member is 1mm to 10mm, and / or the thickness of the second limiting member is 1mm to 10mm.
[0023] In an optional embodiment, the first limiting member is made of a metal material, and / or the second limiting member is made of a metal material.
[0024] The beneficial effects of the packaging box according to this utility model embodiment include, for example:
[0025] The packaging box includes a box body, a first limiting plate, a second limiting plate, a first limiting member, and a second limiting member. The box body has a receiving cavity. The first and second limiting plates are located within the receiving cavity and are both connected to the inner wall of the box body. The first and second limiting plates are spaced apart along the length of the box body. The first limiting plate has a first fixing hole for fixing one end of the electrode roll; the second limiting plate has a second fixing hole for fixing the other end of the electrode roll. The first and second fixing holes restrict movement of the electrode roll along the height and width of the packaging box. The first limiting member is located on the side of the first limiting plate away from the second limiting plate and abuts against the end face of the electrode roll. The second limiting member is located on the side of the second limiting plate away from the first limiting plate and abuts against the other end face of the electrode roll. The first and second limiting members restrict movement of the electrode roll along the length of the packaging box. This packaging box prevents the electrode roll from moving or swinging within the box, thus preventing damage to the electrode roll or the packaging box. Attached Figure Description
[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 This is a schematic diagram of the packaging box provided in an embodiment of the present utility model;
[0028] Figure 2 This is a schematic diagram of a packaging box with the box body removed, provided in an embodiment of the present invention;
[0029] Figure 3 This is an exploded view of the packaging box provided in an embodiment of this utility model.
[0030] Icons: 1000 - Packaging box; 100 - Box body; 110 - Receiving cavity; 200 - First limiting plate; 210 - First upper limiting plate; 211 - First hole; 220 - First lower limiting plate; 221 - Second hole; 230 - First fixing hole; 300 - Second limiting plate; 310 - Second upper limiting plate; 311 - Third hole; 320 - Second lower limiting plate; 321 - Fourth hole; 330 - Second fixing hole; 400 - First limiting component; 410 - First mounting hole; 500 - Second limiting component; 600 - First connector; 700 - Second connector; 800 - Buffer component; 2000 - Electrode roll. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0034] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0035] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0036] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.
[0037] Electrode rolls refer to the core formed after electrode sheets are wound. Before transporting electrode rolls, they need to be packaged in boxes to ensure their quality. Currently, electrode roll packaging uses wooden crates; the product is wound onto the roll and placed on the lower shelf of the crate; then the side panels are placed, followed by the upper shelf, and finally the crate is sealed. However, existing common electrode roll packaging box structures do not limit the length of the electrode roll or have gaps between the limiting sections, causing the electrode roll to slide back and forth along the length of the box. During long-distance transportation, collisions, tilting, and drops may occur. Because the packaging box lacks length-direction limiting, the side panels of the box may crack, and the rolled product may impact the side panels of the crate, causing product damage.
[0038] Based on this, please refer to Figure 1 , Figure 2 and Figure 3 The packaging box 1000 provided in the embodiments of this utility model can effectively improve the technical problems mentioned above. The packaging box 1000 can prevent the electrode roll 2000 from moving or swinging inside the packaging box 1000, so as to prevent damage to the electrode roll 2000 or the packaging box 1000.
[0039] Figure 1 This is a schematic diagram of the packaging box 1000 provided in an embodiment of the present utility model; Figure 2 This is a schematic diagram of a packaging box 1000 with part of the box body 100 removed, provided in an embodiment of the present utility model; Figure 3 This is an exploded view of the packaging box 1000 provided in an embodiment of this utility model.
[0040] like Figure 1 , Figure 2 and Figure 3As shown, the packaging box 1000 provided in the embodiment of this utility model includes a box body 100, a first limiting plate 200, a second limiting plate 300, a first limiting member 400, and a second limiting member 500. The box body 100 has a receiving cavity 110. The first limiting plate 200 and the second limiting plate 300 are located in the receiving cavity 110 and are both connected to the inner wall of the box body 100. The first limiting plate 200 and the second limiting plate 300 are spaced apart along the length direction of the box body 100. The first limiting plate 200 has a first fixing hole 230. The first fixing hole 230 is used to fix one end of the electrode roll 2000; the second limiting plate 300 has a second fixing hole 330, which is used to fix the other end of the electrode roll 2000; the first limiting member 400 is disposed on the side of the first limiting plate 200 away from the second limiting plate 300, and the first limiting member 400 is used to abut against the end face of the electrode roll 2000; the second limiting member 500 is disposed on the side of the second limiting plate 300 away from the first limiting plate 200, and the second limiting member 500 is used to abut against the other end face of the electrode roll 2000. The electrode roll 2000 is placed into the receiving cavity 110 of the housing 100, with one end of the electrode roll 2000 passing through the first fixing hole 230 and abutting against the first limiting member 400, and the other end of the electrode roll 2000 passing through the second fixing hole 330 and abutting against the second limiting member 500. The polar roll 2000 is fixed between the first limiting plate 200 and the second limiting plate 300.
[0041] By setting a first limiting plate 200 and a second limiting plate 300, and providing a first fixing hole 230 on the first limiting plate 200 and a second fixing hole 330 on the second limiting plate 300, the electrode roll 2000 can be fixed together using the first fixing hole 230 and the second fixing hole 330, thus restricting the movement of the electrode roll 2000 along the height and width directions of the packaging box 1000. By setting a first limiting member 400 and a second limiting member 500, the movement of the electrode roll 2000 along the length direction of the packaging box 1000 can be restricted. The packaging box 1000 can prevent the electrode roll 2000 from moving or swinging within the packaging box 1000, thereby preventing damage to the electrode roll 2000 or the packaging box 1000.
[0042] Typically, the electrode roll 2000 is wound onto a spool, which is then placed inside a packaging box 1000 for transport. Therefore, in this embodiment, the packaging box 1000 may also include a spool, one end of which passes through the first fixing hole 230 and abuts against the first limiting member 400, and the other end of which passes through the second fixing hole 330 and abuts against the second limiting member 500; the spool is used to wind the electrode roll 2000. Alternatively, the wound electrode roll 2000 can be directly placed inside the packaging box 1000 for fixation.
[0043] To adjust the spacing between the limiting component and the limiting plate according to different roll or pole roll 2000 sizes, please refer to [link / reference needed]. Figures 1-3In this embodiment, the first limiting member 400 is detachably connected to the first limiting plate 200, and / or the second limiting member 500 is detachably connected to the second limiting plate 300. Using this connection method, workers can select first limiting members 400 and second limiting members 500 of different thicknesses according to the actual length of the roll or pole roll 2000. Furthermore, the detachable connection between the first limiting member 400 and the first limiting plate 200, and the detachable connection between the second limiting member 500 and the second limiting plate 300, also facilitates replacement and installation.
[0044] Specifically, the packaging box 1000 in this embodiment further includes a first connector 600. The first limiting plate 200 is provided with the first connector 600, and the first limiting member 400 has a first mounting hole 410. The first connector 600 cooperates with the first mounting hole 410 to achieve a detachable connection between the first limiting plate 200 and the first limiting member 400; and / or, the second limiting plate 300 is provided with a second connector 700, and the second limiting member 500 has a second mounting hole. The second connector 700 cooperates with the second mounting hole to achieve a detachable connection between the second limiting plate 300 and the second limiting member 500. In this embodiment, there are two of each of the first connector 600 and the second connector 700, and correspondingly, there are also two of each of the first mounting hole 410 and the second mounting hole. To ensure the connection strength between the first limiting member 400 and the first limiting plate 200, and to ensure the connection strength between the second limiting member 500 and the second limiting plate 300, the number of the first connector 600 and the second connector 700 can be three, four, or more, and this is not limited here. Correspondingly, the number of the first mounting hole 410 and the second mounting hole can also be three, four, or more, with the first mounting hole 410 corresponding one-to-one with the first connector 600, and the second mounting hole corresponding one-to-one with the second connector 700.
[0045] To prevent the first connector 600 or the second connector 700 from damaging the electrode roll 2000, in this embodiment, one end of the first connector 600 is located inside the first limiting plate 200, and the other end of the first connector 600 protrudes from the side of the first limiting plate 200 away from the second limiting plate 300; and / or, one end of the second connector 700 is located inside the second limiting plate 300, and the other end of the second connector 700 protrudes from the side of the second limiting plate 300 away from the first limiting plate 200. That is, the end of the first connector 600 near the first limiting plate 200 does not protrude from the first limiting plate 200, and the end of the second connector 700 near the second limiting plate 300 also does not protrude from the second limiting plate 300.
[0046] In this embodiment, both the first connector 600 and the second connector 700 are bolts. The mounting holes on the first limiting member 400 or the second limiting member 500 are threaded holes. After the first connector 600 is fitted into the first mounting hole 410, it is then fixed with a nut. After the second connector 700 is fitted into the second mounting hole, it is also fixed with a nut to ensure the tightness of the connection.
[0047] Alternatively, a first connector 600 may be provided on the first limiting member 400, and a first mounting hole 410 may be provided on the first limiting plate 200. A second connector 700 may be provided on the second limiting member 500, and a second mounting hole may be provided on the second limiting plate 300. Furthermore, the first limiting member 400 and the first limiting plate 200 may also be connected by other detachable connection methods such as snap-fit, and the second limiting member 500 and the second limiting plate 300 may also be connected by other detachable connection methods such as snap-fit; no limitation is imposed here.
[0048] Of course, the first limiting member 400 and the first limiting plate 200 can also be connected by welding or other fixed connection methods, and the second limiting member 500 and the second limiting plate 300 can also be connected by welding or other fixed connection methods, which are not limited here. The connection method of the first limiting member 400 and the first limiting plate 200 can be different from the connection method of the second limiting member 500 and the second limiting plate 300, depending on the actual installation situation, which is not limited here.
[0049] Please see Figure 3 In this embodiment, the first limiting member 400 is U-shaped, and / or the second limiting member 500 is U-shaped. By designing the first limiting member 400 or the second limiting member 500 as a U-shaped structure, the contact area between the first limiting member 400 or the second limiting member 500 and the electrode roll 2000 can be minimized while ensuring that the electrode roll 2000 is limited along its length, thereby reducing wear on the electrode roll 2000 caused by the first limiting member 400 or the second limiting member 500. Of course, the first limiting member 400 and the second limiting member 500 can also be designed in other shapes, as long as they can support the end face of the electrode roll 2000, which is not limited here.
[0050] In this embodiment, the thickness of the first limiting member 400 is 1mm to 10mm, and / or the thickness of the second limiting member 500 is 1mm to 10mm. Of course, the thickness of the first limiting member 400 and the second limiting member 500 can also be selected according to the actual assembled electrode roll 2000, and is not limited here. To ensure the structural strength of the first limiting member 400 and the second limiting member 500, in this embodiment, the first limiting member 400 is made of metal, and / or the second limiting member 500 is made of metal. Specifically, the first limiting member 400 or the second limiting member 500 can be made of materials such as iron or steel, and is not limited here.
[0051] For further protection of the 2000 tapestry, please refer to [link / reference needed]. Figure 3 In this embodiment, the packaging box 1000 also includes a cushioning element 800, which is disposed between the first limiting plate 200 and the pole roll 2000, and / or, the cushioning element 800 is disposed between the second limiting plate 300 and the pole roll 2000. In this embodiment, the cushioning element 800 is foam, which is adhered to the first limiting element 400 or the second limiting element 500. Specifically, the foam in this embodiment is made of EPE material. EPE foam has a very low density, making it very lightweight and easy to handle and transport. Furthermore, EPE foam has excellent cushioning properties, effectively absorbing impacts and vibrations to protect items from damage. In addition, EPE foam is waterproof, has good thermal insulation properties, and is environmentally friendly. EPE foam is recyclable and has a low environmental burden. Of course, the foam can also be made of materials such as EVA, PP, and PVC, and is not limited here. In addition to foam, other cushioning materials such as rubber, silicone pads, honeycomb paper, and bubble wrap can also be used for the cushioning component 800, and no specific restrictions are imposed here.
[0052] To ensure a good cushioning effect, the thickness of the buffer 800 in this embodiment is 5mm to 30mm. Of course, the thickness of the buffer 800 can be selected according to the actual situation, and is not limited here.
[0053] For ease of installation, please refer to [link / reference]. Figure 3 and combined Figure 2 In this embodiment, the first limiting plate 200 includes a first upper limiting plate 210 and a first lower limiting plate 220. The first upper limiting plate 210 has a first hole 211, and the first lower limiting plate 220 has a second hole 221. The first hole 211 and the second hole 221 together form a first fixing hole 230. And / or, the second limiting plate 300 includes a second upper limiting plate 310 and a second lower limiting plate 320. The second upper limiting plate 310 has a third hole 311, and the second lower limiting plate 320 has a fourth hole 321. The third hole 311 and the fourth hole 321 together form a second fixing hole 330. Furthermore, to facilitate adjusting the distance between the first limiting plate 200 and the second limiting plate 300 according to different specifications of the electrode rolls 2000, in this embodiment, the first limiting plate 200 is slidably connected to the inner wall of the housing 100, and / or, the second limiting plate 300 is slidably connected to the inner wall of the housing 100. Of course, the first limiting plate 200 and / or the second limiting plate 300 can also be connected to the housing 100 by other connection methods such as plug-in. In order to facilitate the adjustment of the distance between the first limiting plate 200 and the second limiting plate 300, multiple plug-in slots can be provided on the housing 100 along the length direction, and the first limiting plate 200 or the second limiting plate 300 can be respectively provided in the plug-in slots at different positions.
[0054] In summary, the packaging box 1000 includes a box body 100, a first limiting plate 200, a second limiting plate 300, a first limiting member 400, and a second limiting member 500. The box body 100 has a receiving cavity 110. The first limiting plate 200 and the second limiting plate 300 are located within the receiving cavity 110 and are both connected to the inner wall of the box body 100. The first limiting plate 200 and the second limiting plate 300 are spaced apart along the length of the box body 100. The first limiting plate 200 has a first fixing hole 230. Hole 230 is used to fix one end of electrode roll 2000; the second limiting plate 300 has a second fixing hole 330, which is used to fix the other end of electrode roll 2000; the first limiting member 400 is disposed on the side of the first limiting plate 200 away from the second limiting plate 300, and the first limiting member 400 is used to abut against the end face of electrode roll 2000; the second limiting member 500 is disposed on the side of the second limiting plate 300 away from the first limiting plate 200, and the second limiting member 500 is used to abut against the other end face of electrode roll 2000. The first fixing hole 230 and the second fixing hole 330 can restrict the movement of electrode roll 2000 along the height and width directions of packaging box 1000. The first limiting member 400 and the second limiting member 500 can restrict the movement of electrode roll 2000 along the length direction of packaging box 1000. The packaging box 1000 can prevent the electrode roll 2000 from moving or swinging within the packaging box 1000, so as to prevent damage to the electrode roll 2000 or the packaging box 1000.
[0055] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.
Claims
1. A packaging box, characterized in that, include: A housing (100) having a receiving cavity (110); A first limiting plate (200) and a second limiting plate (300) are located inside the receiving cavity (110) and are both connected to the inner wall of the box body (100); the first limiting plate (200) and the second limiting plate (300) are spaced apart along the length direction of the box body (100); The first limiting plate (200) has a first fixing hole (230) for fixing one end of the pole roll (2000); the second limiting plate (300) has a second fixing hole (330) for fixing the other end of the pole roll (2000). A first limiting member (400) is disposed on the side of the first limiting plate (200) away from the second limiting plate (300), and the first limiting member (400) is used to abut against the end face of the pole roll (2000). The second limiting member (500) is disposed on the side of the second limiting plate (300) away from the first limiting plate (200), and the second limiting member (500) is used to abut against the other end face of the pole roll (2000).
2. The packaging box according to claim 1, characterized in that, The first limiting member (400) is detachably connected to the first limiting plate (200), and / or the second limiting member (500) is detachably connected to the second limiting plate (300).
3. The packaging box according to claim 2, characterized in that, The packaging box (1000) also includes a first connector (600), the first limiting plate (200) is provided with the first connector (600), the first limiting member (400) is provided with a first mounting hole (410), the first connector (600) cooperates with the first mounting hole (410) to realize the first limiting plate (200) and the first limiting member (400) detachably connected; And / or, the second limiting plate (300) is provided with a second plug-in (700), the second limiting member (500) is provided with a second mounting hole, and the second plug-in (700) cooperates with the second mounting hole to realize the detachable connection between the second limiting plate (300) and the second limiting member (500).
4. The packaging box according to claim 3, characterized in that, One end of the first connector (600) is located inside the first limiting plate (200), and the other end of the first connector (600) protrudes from the side of the first limiting plate (200) away from the second limiting plate (300). And / or, one end of the second connector (700) is located inside the second limiting plate (300), and the other end of the second connector (700) protrudes from the side of the second limiting plate (300) away from the first limiting plate (200).
5. The packaging box according to claim 1, characterized in that, The first limiting member (400) is U-shaped, and / or the second limiting member (500) is U-shaped.
6. The packaging box according to claim 1, characterized in that, The first limiting plate (200) includes a first upper limiting plate (210) and a first lower limiting plate (220). The first upper limiting plate (210) has a first hole (211), and the first lower limiting plate (220) has a second hole (221). The first hole (211) and the second hole (221) together form the first fixing hole (230). And / or, the second limiting plate (300) includes a second upper limiting plate (310) and a second lower limiting plate (320), the second upper limiting plate (310) has a third hole (311), the second lower limiting plate (320) has a fourth hole (321), and the third hole (311) and the fourth hole (321) together form the second fixing hole (330).
7. The packaging box according to any one of claims 1-6, characterized in that, The packaging box (1000) further includes a buffer (800) disposed between the first limiting plate (200) and the pole roll (2000), and / or, the buffer (800) disposed between the second limiting plate (300) and the pole roll (2000).
8. The packaging box according to claim 7, characterized in that, The buffer (800) is foam, and / or the thickness of the buffer (800) is 5mm to 30mm.
9. The packaging box according to any one of claims 1-6, characterized in that, The thickness of the first limiting member (400) is 1mm to 10mm, and / or the thickness of the second limiting member (500) is 1mm to 10mm.
10. The packaging box according to any one of claims 1-6, characterized in that, The first limiting member (400) is made of metal, and / or the second limiting member (500) is made of metal.