Packaging box

Abstract

The application discloses a packaging box for a roll material, which comprises a bottom plate, a cover plate and a support plate. The cover plate is arranged above the bottom plate. The support plate is arranged between the bottom plate and the cover plate. The support plate comprises a main body part and a folding part. The main body part and the folding part are movably connected. The support plate has an unfolded state in which the main body part and the folding part are unfolded, and a storage state in which the main body part and the folding part are folded and arranged oppositely. When the support plate is arranged between the bottom plate and the cover plate, the support plate is in the unfolded state. When the support plate is separated from the bottom plate and the cover plate, the support plate is in the storage state. The technical scheme can be effectively assembled and disassembled, is convenient to use and is convenient to maintain.

Description

Technical Field

[0001] This application belongs to the field of transport packaging technology, specifically relating to a packaging box. Background Technology

[0002] When transporting roll materials, they are usually packed in boxes to protect them from compression. In existing boxes, the end plates and protective wrapping surfaces on the roll core are integrated, making disassembly during recycling difficult and inconvenient for maintenance. Summary of the Invention

[0003] The purpose of this application is to provide a packaging box that can be effectively assembled and disassembled, is easy to use, and is easy to maintain.

[0004] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0005] According to one aspect of an embodiment of this application, this application provides a packaging box for use with roll materials, the packaging box comprising:

[0006] Base plate; A cover plate, which is disposed above the base plate; A support plate is disposed between the base plate and the cover plate. The support plate includes a main body and two folded portions, which are located on opposite sides of the main body. The main body and the folded portions are movably connected. The main body is used for insertion with the roll material; The support plate has an unfolded state in which the main body and the folding part are movably unfolded, and a stowed state in which the main body and the folding part are folded and opposite each other; When the support plate is placed between the base plate and the cover plate, the support plate is in the unfolded state; when the support plate is separated from the base plate and the cover plate, the support plate is in the stored state.

[0007] In one aspect, the packaging box includes a rotating connection portion disposed between the main body portion and the folding portion, the rotating connection portion connecting the main body portion and the folding portion respectively, so that the support plate switches between the unfolded state and the stowed state.

[0008] In one aspect, the rotating connection includes a pivot, a first hinge, and a second hinge, the first hinge and the second hinge being rotatably connected to the pivot, the first hinge being connected to the main body, and the second hinge being connected to the folding portion.

[0009] In one aspect, the main body is provided with a slot for engaging roll material.

[0010] In one aspect, the packaging box includes a first support plate and a second support plate, the lower end of the first support plate abutting against the upper surface of the base plate, the upper end of the second support plate abutting against the lower surface of the cover plate, the second support plate being disposed at the upper end of the first support plate, a slot of the first support plate engaging with the lower side of the roll material, and a slot of the second support plate engaging with the upper side of the roll material.

[0011] In one aspect, the packaging box includes a third support plate and a fourth support plate, the third support plate being disposed opposite to the first support plate, and the fourth support plate being disposed opposite to the second support plate; The packaging box also includes a support rod, which is disposed between the first support plate and the third support plate, and is detachably connected to the first support plate and the third support plate respectively.

[0012] In one aspect, the packaging box further includes a fastening assembly comprising a male buckle and a female buckle, one of which is located at the end of the support rod and the other is located on the first support plate facing the support rod, the support rod being connected to the first support plate, and the male buckle being fastened to the female buckle.

[0013] In one aspect, the packaging box further includes an adapter slot located at the upper end of the first support plate, and the lower end of the second support plate inserted into the adapter slot.

[0014] In one aspect, the packaging box also includes a side panel, and the upper surface of the bottom plate is provided with a side groove. The side panel is located on the outer side of the support plate and inserted into the side groove.

[0015] In one aspect, the packaging box further includes a sealing gasket disposed at the bottom of the enclosure groove, with the lower end of the enclosure abutting against the upper surface of the sealing gasket.

[0016] In one aspect, the packaging box further includes a sealing layer and a protrusion, the sealing layer being disposed on the sidewall of the enclosure, and the protrusion being disposed between the sealing layer and the enclosure panel.

[0017] In one aspect, the support plate has multiple hollow areas, which are arranged at intervals.

[0018] In one aspect, the packaging box further includes a locking element forming a locking groove, the locking element being disposed on the upper surface of the base plate and / or the lower surface of the cover plate, the locking groove being disposed corresponding to the support plate.

[0019] In this application, the support plate can be switched between an unfolded state and a folded state. When using the packaging box, it is assembled; the main body and folding parts of the support plate unfold, and the support plate rests between the base plate and the cover plate, completing the assembly for use. After using the packaging box, it is disassembled; the main body and folding parts are folded and stacked together, and the support plate is separated from the base plate and cover plate, completing the disassembly. Therefore, the technical solution of this application, by switching the support plate between an unfolded state and a folded state, enables the assembly and disassembly of the packaging box, making it convenient to use and improving maintenance ease.

[0020] It should be understood in this application that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this application. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0022] Figure 1 A schematic diagram of the structure of the packaging box of this application is shown.

[0023] Figure 2 This application is illustrated schematically. Figure 1 A schematic diagram of the internal structure of the medium-sized packaging box.

[0024] Figure 3 The schematic diagram illustrates the structure of the support plate in the packaging box of this application, which is set on the bottom plate.

[0025] Figure 4 The schematic diagram illustrates the structure of the support plate in its unfolded state in this application.

[0026] Figure 5 The schematic diagram illustrates the structure of the support plate in its stowed state in this application.

[0027] Figure 6 The schematic diagram illustrates the structure of the rotating connection part in this application.

[0028] Figure 7 The schematic diagram illustrates the structure of the support rod and the fastening assembly in this application.

[0029] Figure 8 The schematic diagram illustrates the structure of the public fastener of this application mounted on the support rod.

[0030] Figure 9A schematic diagram of the connecting buckle in this application is shown.

[0031] Figure 10 The schematic diagram illustrates the structure of the enclosure plate set on the base plate in this application.

[0032] Figure 11 This schematically illustrates another structural diagram of the enclosure being mounted on the base plate in this application.

[0033] Figure 12 A schematic diagram of the upper surface structure of the base plate in this application is shown.

[0034] Figure 13 A schematic diagram of the lower surface structure of the cover plate in this application is shown.

[0035] Figure 14 The schematic diagram illustrates the structure of the locking element provided on the support plate in this application.

[0036] Figure 15 A schematic diagram of the structure of the upper foot component in this application is shown.

[0037] Figure 16 A schematic diagram of the structure of the lower component in this application is shown.

[0038] The annotations in the attached figures are explained as follows: 100. Base plate; 200. Cover plate; 300. Support plate; 400. Rotating connection; 500. Support rod; 600. Fastening assembly; 700. Enclosure; 810. Sealing gasket; 820. Sealing layer; 821. Protrusion; 830. Engaging piece; 900. Roll material; 110. Lower part; 120. Enclosing groove; 201. Stacking area; 210. Upper part; 211. Clip; 301. Main body; 302. Folding part; 303. Hollowed-out area; 304. Pin; 305. Slot; 307. Vertical strip; 308. Horizontal strip; 310. First support plate; 320. Second support plate; 330. Third support plate; 340. Fourth support plate; 410. Rotating shaft; 420. First hinge; 430. Second hinge; 610. Male buckle; 620. Female buckle; 630. Connecting buckle; 631. Hook part; 640. Connector; 831. Engaging groove. Detailed Implementation

[0039] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0040] See Figures 1 to 3 As shown, this application provides a packaging box for packaging and transporting a roll of material 900. The roll of material 900 can be a metal roll or a non-metal roll. For example, the roll of material 900 can be copper foil, aluminum foil, or PET (Polyethylene Terephthalate) roll material. The packaging box includes a base plate 100, a cover plate 200, and a support plate 300. The cover plate 200 is located above the base plate 100. To improve structural strength, both the cover plate 200 and the base plate 100 have a double-layer structure. For example, the side of the cover plate 200 facing the roll of material is made of plastic sheet, and the side facing away from the roll of material is made of steel plate. That is, the outer surface of the cover plate 200 is made of steel plate. The steel plate can improve the strength of the packaging box and reduce deformation caused by external pressure. Similarly, the side of the base plate 100 facing the roll of material is made of plastic sheet, and the side facing away from the roll of material 900 is made of steel plate. That is, the lower surface of the base plate 100 is made of steel plate. The side of the base plate 100 facing the roll 900 and the side of the cover plate 200 facing the roll 900 can also be made of fiberglass board.

[0041] Fiberglass board, also known as fiberglass insulation board, glass fiber board, or fiberglass composite board, is made of fiberglass material and high heat-resistant composite materials. It has high mechanical and dielectric properties, good heat and moisture resistance, and good processability.

[0042] The support plate 300 is disposed between the base plate 100 and the cover plate 200. The support plate 300 includes a main body 301 and a folding part 302. The main body 301 and the folding part 302 are movably connected. Through the movable connection between the main body 301 and the folding part 302, the support plate 300 can have at least two structural states.

[0043] See Figure 4 and Figure 5 As shown, specifically, the support plate 300 has an unfolded state where the main body 301 and the folding part 302 are movably unfolded, and a folded-in state where the main body 301 and the folding part 302 are folded and opposite each other. When the support plate 300 is placed between the base plate 100 and the cover plate 200, the support plate 300 is in the unfolded state, and at this time it is used to support the roll material 900. When the support plate 300 is separated from the base plate 100 and the cover plate 200, the support plate 300 is detached from the base plate 100, and through the folding of the main body 301 and the folding part 302, the support plate 300 is in the folded-in state, facilitating storage.

[0044] In this application, the support plate 300 can be switched between an unfolded state and a folded state. When using the packaging box, it is assembled; the main body 301 and folding part 302 of the support plate 300 unfold, and the support plate 300 is supported between the base plate 100 and the cover plate 200. After assembly, it is ready for use. After using the packaging box, it is disassembled; the main body 301 and folding part 302 are folded and stacked together, and the support plate 300 is separated from the base plate 100 and the cover plate 200, completing the disassembly. Therefore, the technical solution of this application, by switching the support plate 300 between an unfolded state and a folded state, enables the assembly and disassembly of the packaging box, making it convenient to use and improving maintenance ease.

[0045] See Figure 6 As shown, to ensure that the support plate 300 can smoothly switch between the unfolded and folded states, the packaging box includes a rotating connecting part 400. The rotating connecting part 400 is located between the main body 301 and the folding part 302, connecting the main body 301 and the folding part 302 respectively, so that the support plate 300 can switch between the unfolded and folded states. Both the main body 301 and the folding part 302 are connected to the rotating connecting part 400, allowing the folding part 302 to be rotatably stacked on the main body 301. The main body 301 is mainly provided corresponding to the end of the roll 900, which typically has a spool. The spool of the roll 900 is inserted into the main body 301, and the support plate 300 provides fixed support for the roll 900. The folding part 302 can be unfolded around the rotating connecting part 400, and the surface of the folding part 302 can form a 90° angle with the surface of the main body 301, thereby allowing the support plate 300 to switch to the unfolded state. Of course, as needed, the folding part 302 can be unfolded around the rotating connecting part 400 at different angles from the main body part 301, such as 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80°, etc.

[0046] Furthermore, the rotating connecting part 400 includes a pivot 410, a first hinge 420, and a second hinge 430. The first hinge 420 and the second hinge 430 are rotatably connected to the pivot 410. The first hinge 420 is connected to the main body 301, and the second hinge 430 is connected to the folding part 302. The first hinge 420 can be fixedly connected to the main body 301, and the second hinge 430 is fixedly connected to the folding part 302. The fixed connection can be achieved using screws or rivets. The first hinge 420 can rotate around the pivot 410, and the main body 301 rotates accordingly under the connection of the first hinge 420. Similarly, the second hinge 430 can also rotate around the pivot 410, and the folding part 302 rotates accordingly under the connection of the second hinge 430. It can be understood that the first hinge 420 and the second hinge 430 can be folded together, and the folding part 302 folds onto the main body 301, switching the support plate 300 to a stored state. Conversely, the first hinge 420 and the second hinge 430 rotate in opposite directions, the main body 301 and the folding part 302 rotate and unfold, and the support plate 300 switches to the unfolded state.

[0047] To ensure the stability of the connection between the main body 301 and the folding part 302, multiple rotating connecting parts 400 can be provided to increase the connection point between the main body 301 and the folding part 302 and prevent the folding part 302 from easily separating from the main body 301. For example, two or three rotating connecting parts 400 can be provided.

[0048] The main body 301 typically faces the end of the roll 900, i.e., it is usually located at one axial end of the roll 900. To make the support plate 300 structure more stable, two folding portions 302 are provided, located on opposite sides of the main body 301. The main body 301 is provided with a slot 305 for engaging the roll 900. When the roll 900 is fixed to the main body 301 via the slot 305, the main body 301 is subjected to overall force. The main body 301 will transfer the force to the folding portions 302. If the folding portion 302 is provided on only one side of the main body 301, the other side of the main body 301 is prone to being suspended, and the force on the main body 301 will be concentrated on the folding portion 302 on that one side. Uneven force on the left and right sides of the main body 301 can easily lead to wear on the rotating connection 400. To this end, a folding part 302 is provided on each side of the main body 301. The two folding parts 302 make the force on the left and right sides of the main body more balanced and maintain the stability of the main body 301. The rotating connection part 400 is also usually made of stainless steel.

[0049] Additionally, when the support plate 300 is switched to the storage state, the two folding parts 302 fold towards the middle of the main body 301. The two folding parts 302 can be folded onto the main body 301 sequentially, or they can be folded onto the main body 301 simultaneously. Alternatively, one folding part can rotate and fold to the front surface of the main body, while the other folding part rotates and folds to the rear surface of the main body.

[0050] To improve the stability of the fixed roll material 900, the packaging box includes a first support plate 310 and a second support plate 320. The lower end of the first support plate 310 abuts against the upper surface of the base plate 100, and the upper end of the second support plate 320 abuts against the lower surface of the cover plate 200. The second support plate 320 is located above the first support plate 310. The slot 305 of the first support plate 310 engages with the lower side of the roll material 900, and the slot 305 of the second support plate 320 engages with the upper side of the roll material 900. The arrangement of the first support plate 310 and the second support plate 320 can clamp one end of the roll material 900.

[0051] When placing the roll material 900, the first support plate 310 can be installed on the upper surface of the base plate 100, the roll material 900 can be placed on the slot 305 of the first support plate 310, and then the second support plate 320 can be placed above the first support plate 310. In this way, the first support plate 310 and the second support plate 320 clamp and hold the roll material 900 in place. The shape of the slot 305 matches the shape of the corresponding roll material 900, and the slot 305 can be semi-circular. The two slots 305 form a circle, which is more suitable for adapting to the roll structure of the roll material 900.

[0052] Furthermore, the first support plate 310 and the second support plate 320 can be a single, integral structure. This integrated structure facilitates installation and reduces the number of installation steps. When packaging the roll material, the first and second support plates, as an integral structure, can first be fitted onto the roll of material, and then placed on the base plate.

[0053] Furthermore, the packaging box also includes a third support plate 330 and a fourth support plate 340. The third support plate 330 and the first support plate 310 are arranged opposite to each other, and the fourth support plate 340 and the second support plate 320 are arranged opposite to each other, that is, the third support plate is arranged below the fourth support plate.

[0054] See Figure 7 and Figure 8As shown, the packaging box also includes support rods 500, which are positioned between the first support plate 310 and the third support plate 330. The support rods 500 are detachably connected to both the first and third support plates 310 and 330. The support rods 500 stably separate the first and third support plates 310 and 330, maintaining a safe distance between them and preventing them from tilting and pressing on the roll material 900. Similarly, support rods 500 are also provided between the second and fourth support plates 320 and 340, fixing them at a stable distance and preventing them from tilting. The number of support rods 500 can also be more than two; for example, four support rods 500 can be provided around the roll material 900 to improve the stability of the support plates 300.

[0055] To further ensure uniform force distribution, the four support rods 500 are arranged parallel to each other and at equal intervals, meaning the four support rods 500 are symmetrically arranged, with the center of symmetry being the center of the end face of the roll 900.

[0056] To facilitate the installation of the support rod 500, the packaging box also includes a fastening assembly 600. The fastening assembly 600 includes a male fastener 610 and a female fastener 620. One of the male fastener 610 and the female fastener 620 is located at the end of the support rod 500, and the other is located on the first support plate 310 facing the support rod 500. The support rod 500 is connected to the first support plate 310, and the male fastener 610 is fastened to the female fastener 620. The fastening of the male fastener 610 and the female fastener 620 ensures that the support rod 500 can be connected to the support plate 300.

[0057] The fastening assembly 600 can be installed in two ways: the male fastener 610 is mounted on the support plate 300, and the female fastener 620 is mounted on the support rod 500. Alternatively, the male fastener 610 can be mounted on the support rod 500, and the female fastener 620 can be mounted on the support plate 300. The male fastener 610 can be an insert plate, and the female fastener 620 can be a slot. The insert plate is inserted into the slot to secure the male fastener 610 and the female fastener 620. The male fastener 610 is then fixed to the support rod 500 using two screws, rivets, or bolts.

[0058] See Figure 9 As shown in this application, the position of the support rod 500 connected to the support plate 300 can be adjusted. For example, a male buckle 610 is provided at the end of the support rod 500, and a female buckle 620 is provided on the support plate 300. The female buckle 620 is also provided with a connecting buckle 630, which is used to connect with the support plate 300. The connecting buckle 630 can fix the female buckle 620 at different positions on the support plate 300.

[0059] Additionally, the support plate 300 can be grid-shaped, i.e., formed by the intersection of multiple vertical strips 307 and multiple horizontal strips 308. It can be understood that the support plate 300 has multiple open areas 303. The connecting buckle 630 can be located on the side of the support plate 300 facing away from the support rod 500, i.e., the connecting buckle 630 can be located on the outer surface of the support plate 300, and the female buckle 620 is located on the inner surface of the support plate 300. A connector 640 is provided, passing through the open areas 303 to connect the female buckle 620 and the connecting buckle 630, thus fixing the female buckle 620 to the support plate 300. The connector 640 can be a rivet, screw, or bolt. Because the support plate 300 has multiple open areas 303, the connecting buckle 630 can be arbitrarily positioned on the surface of the support plate 300. To better match the structure of the support plate 300, the connecting buckle 630 is also provided with two hook portions 631. These hook portions 631 can hook onto the vertical strip 307 or the horizontal strip 308, facilitating the fixing of the connecting buckle 630 to the support plate 300. In this application, the main material of the support plate 300 can be plastic or fiberglass. Typically, the fastening assembly 600 is made of stainless steel, and the support rod 500 is a fiberglass tube.

[0060] The packaging box also includes a locking component 830, which is located at the upper end of the first support plate 310, and the lower end of the second support plate 320 is inserted into the locking component 830. This facilitates the docking of the second support plate 320 and the first support plate 310. The locking component 830 may also have multiple segments, respectively located on the main body 301 and the folding portion 302 of the first support plate 310.

[0061] See Figure 10 As shown, the packaging box in this application also includes a side panel 700. A groove 120 is provided on the upper surface of the base plate 100. The side panel 700 is located on the outer side of the support plate 300 and inserted into the groove 120. The groove 120 allows the side panel 700 to be aligned with the groove during installation, improving the accuracy of installation and facilitating its installation. The packaging box also includes a sealing gasket 810, which is located at the bottom of the groove 120. The lower end of the side panel 700 abuts against the upper surface of the sealing gasket 810. The sealing gasket 810 can be a rubber gasket, which isolates the internal and external spaces of the packaging box, reducing the entry of dust and moisture into the box. Additionally, the sealing gasket 810 can cushion the compression of the side panel 700, preventing hard contact between the side panel 700 and the base plate 100.

[0062] In addition, the packaging box also includes a pressure-retaining component, which is located within the surrounding groove 120. One end of the pressure-retaining component abuts against the groove wall of the surrounding groove 120, and the other side abuts against the side wall of the surrounding panel 700. The pressure-retaining component can improve the stability of the surrounding panel 700 and reduce the side-to-side swaying of the surrounding panel 700.

[0063] See Figure 11 As shown, in order to both seal the gap between the enclosure 700 and the base plate 100 and improve the stability of the enclosure 700, the packaging box also includes a sealing layer 820 and a protrusion 821. The sealing layer 820 is disposed on the side wall of the enclosure groove 120, and the protrusion 821 is disposed between the sealing layer 820 and the enclosure 700. A sealing layer 820 with a protrusion 821 can be provided, with the sealing layer 820 disposed on the groove wall of the enclosure 120 and the protrusion 821 disposed between the groove wall of the enclosure 120 and the side wall of the enclosure 700. Typically, the sealing layer 820 and the protrusion 821 are integrally formed, such as a P-type sealing gasket.

[0064] To reduce the weight of the support plate 300, multiple hollow areas 303 are provided on the support plate 300, and these hollow areas 303 are arranged at intervals. The hollow areas 303 reduce the amount of material used in the support plate 300, thus lowering its weight. For example, the support plate 300 can be a grid-like structure; a grid-like structure of the support plate 300 can both provide support and reduce its weight.

[0065] See Figure 12 and Figure 13 As shown, to ensure structural stability between the support plates 300, in addition to the support rods 500, the packaging box in this application also includes a locking member 830. The locking member 830 forms a locking groove 831, which is located on the upper surface of the base plate 100 and / or the lower surface of the cover plate 200. The locking groove 831 corresponds to the support plate 300. The width of the support plate 300 is adapted to the width of the locking groove 831, allowing the support plate 300 to be locked into the locking groove 831. Thus, during packaging box assembly, the locking groove 831 allows the support plate 300 to be directly fixed to the corresponding position on the base plate 100 or the corresponding position on the cover plate 200.

[0066] The engaging component 830 can be configured in three ways. The first is that it is located on the upper surface of the base plate 100. The second is that it is located on the lower surface of the cover plate 200. The third is that it is located on both the upper surface of the base plate 100 and the lower surface of the cover plate 200. Typically, the engaging component 830 is located on both the base plate 100 and the cover plate 200. Furthermore, the engaging component 830 improves assembly efficiency by allowing the support plate 300 to be directly inserted into the corresponding engaging slot 831.

[0067] See Figure 14 As shown, the locking member 830 is also provided at the upper end of the first support plate 310, and the lower end of the second support plate 320 is inserted into the locking member 830. This facilitates the docking of the second support plate 320 and the first support plate 310. The locking member 830 can also be provided in multiple segments, respectively provided on the main body 301 and the folding part 302 of the first support plate 310. Similarly, the locking member 830 can also be provided on the third support plate 330. The packaging box also includes a pin 304, which is provided on the support plate. The bottom plate 100 is provided with a hole corresponding to the pin 304. By inserting the pin 304 into the hole, the support plate 300 can be positioned on the bottom plate 100.

[0068] In this application, a support rod 500 and a locking member 830 can be provided simultaneously. The support rod 500 and the locking member 830 can simultaneously improve the stability of the support plate 300. The combination of the two structures can stably keep the relatively arranged support plates 300 at the interval.

[0069] See Figure 15 and Figure 16 As shown, it should be noted that the lower surface of the base plate 100 in this application is also provided with a lower leg 110. Multiple lower leg 110s are provided, each located at a corner of the lower surface of the base plate 100. The lower leg 110s are used to support the base plate 100. The upper surface of the cover plate 200 is also provided with an upper leg 210. Multiple upper leg 210s are provided, each located at a corner of the upper surface of the cover plate 200. The upper leg 210 is also provided with two clips 211. The two clips 211 form a stacking area 201 on the upper leg 210. The shape of the stacking area 201 is adapted to the shape of the lower leg 110, which facilitates the stacking of packaging boxes. The lower leg 110 can be supported on the cover plate 200 of another packaging box. To more stably fix the roll 900, six bottom pieces 110 are usually provided, which are respectively provided at the four corners of the base plate 100, and one bottom piece 110 is also provided on each of the long sides of the base plate 100. The bottom pieces 110 provided on the long side are usually longer than the bottom pieces 110 provided at the corners.

[0070] The upper support 210 is detachably connected to the cover plate 200, and the lower support 110 is also detachably connected to the base plate 100. Furthermore, for ease of replacement or maintenance, the upper support 210 and lower support 110 are typically injection molded parts, thermoplastic integrally formed. The upper support 210 and lower support 110 are modularly designed, making replacement and installation convenient.

[0071] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein.

[0072] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A packaging box, characterized in that, The packaging box is used for roll materials, and the packaging box includes: Base plate; A cover plate, which is disposed above the base plate; A support plate is disposed between the base plate and the cover plate. The support plate includes a main body and two folded portions, which are located on opposite sides of the main body. The main body and the folded portions are movably connected. The main body is used to insert into the roll material. The support plate has an unfolded state in which the main body and the folded portions are movably unfolded, and a folded-up state in which the main body and the folded portions are folded and opposite each other. When the support plate is in the unfolded state, the folded portions protrude from the main body and face the ends of the roll material. When the support plate is placed between the base plate and the cover plate, the support plate is in the unfolded state; when the support plate is separated from the base plate and the cover plate, the support plate is in the stored state. The packaging box includes a rotating connecting part, which is located between the main body and the folding part. The rotating connecting part connects the main body and the folding part respectively, so that the support plate can switch between the unfolded state and the folded state.

2. The packaging box according to claim 1, characterized in that, The rotating connection part includes a rotating shaft, a first hinge, and a second hinge. The first hinge and the second hinge are rotatably connected to the rotating shaft. The first hinge is connected to the main body part, and the second hinge is connected to the folding part.

3. The packaging box according to claim 1, characterized in that, The main body is provided with a slot for engaging roll material.

4. The packaging box according to claim 3, characterized in that, The packaging box includes a first support plate and a second support plate. The lower end of the first support plate abuts against the upper surface of the base plate, and the upper end of the second support plate abuts against the lower surface of the cover plate. The second support plate is located at the upper end of the first support plate. The slot of the first support plate engages with the lower side of the roll material, and the slot of the second support plate engages with the upper side of the roll material.

5. The packaging box according to claim 4, characterized in that, The packaging box includes a third support plate and a fourth support plate, wherein the third support plate and the first support plate are arranged opposite to each other, and the fourth support plate and the second support plate are arranged opposite to each other. The packaging box also includes a support rod, which is disposed between the first support plate and the third support plate, and is detachably connected to the first support plate and the third support plate respectively.

6. The packaging box according to claim 5, characterized in that, The packaging box also includes a fastening assembly, which includes a male buckle and a female buckle. One of the male buckle and the female buckle is located at the end of the support rod, and the other is located on the first support plate facing the support rod. The support rod is connected to the first support plate, and the male buckle is fastened to the female buckle.

7. The packaging box according to claim 4, characterized in that, The packaging box also includes an adapter slot, which is located at the upper end of the first support plate, and the lower end of the second support plate is inserted into the adapter slot.

8. The packaging box according to any one of claims 1 to 7, characterized in that, The packaging box also includes a side panel, and the upper surface of the bottom plate is provided with a side groove. The side panel is located on the outer side of the support plate and inserted into the side groove.

9. The packaging box according to claim 8, characterized in that, The packaging box also includes a sealing gasket, which is disposed at the bottom of the surrounding groove, and the lower end of the surrounding plate abuts against the upper surface of the sealing gasket.

10. The packaging box according to claim 8, characterized in that, The packaging box also includes a sealing layer and a protrusion. The sealing layer is disposed on the side wall of the surrounding groove, and the protrusion is disposed between the sealing layer and the surrounding plate.

11. The packaging box according to claim 1, characterized in that, The support plate has multiple hollow areas, which are arranged at intervals.

12. The packaging box according to claim 1, characterized in that, The packaging box also includes a locking component, which forms a locking groove. The locking component is located on the upper surface of the base plate and / or the lower surface of the cover plate, and the locking groove is provided corresponding to the support plate.

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