Box body

Abstract

A box body comprises a bottom plate, a top plate, a bandage, two fixed side plates and two combined side plate assemblies, the two fixed side plates are arranged on the top face of the bottom plate, the two combined side plate assemblies are arranged on the top face of the bottom plate, and a containing cavity is defined by the two fixed side plates, the two combined side plate assemblies and the bottom plate. The combined side plate assembly comprises a lower side plate assembly, an upper side plate assembly and a limiting assembly, the lower side plate assembly is arranged on the top face of the bottom plate, a lower groove is formed in the top face of the lower side plate assembly and communicated with the containing cavity, the limiting assembly is arranged in the containing cavity, a first fixing gap is formed between the limiting assembly and the lower side plate assembly, and the upper side plate assembly is inserted into the first fixing gap. A first upper groove corresponding to the lower groove is formed in the bottom face of the upper side plate assembly, the first upper groove and the lower groove are matched to clamp a cylinder of the roll material from the upper portion and the lower portion respectively, the top plate covers the containing cavity to seal the containing cavity, the bottom face of the top plate abuts against the top face of the upper side plate assembly, and the bandage is wound around the top plate and the bottom plate to fix the top plate.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging and transportation, in particular to a wooden box. Background Art

[0002] At present, in the carbon coated foil production industry, carbon coated foil and cylinders are used to form coils for easy transportation. Specifically, the structure of the coil is as follows: the carbon coated foil is wrapped around the outside of the cylinder, and the cylinder protrudes to both sides relative to the carbon coated foil; then, the coil is placed in a box for packaging and transportation. Among them, the box commonly used for loading coils includes a bottom plate, side plates, a top plate and binding ropes. The side plates are fixedly arranged on the edge of the bottom plate, and the inner side of the side plates is provided with a semicircular groove for supporting the boss of the coil. The top plate cover is arranged on the top surface of the side plate, and the binding rope is wrapped around the outside of the top plate, the side plate and the bottom plate to fix the three. However, this packaging method can only fix the bottom of the boss of the coil. During transportation, the coil is prone to jump up and down, which affects the quality of the carbon coated foil. Utility Model Content

[0003] The utility model aims to provide a box body to solve the technical problem that the carbon-coated foil is easy to jump up and down in the box body during transportation, resulting in the quality of the carbon-coated foil being reduced.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a box body, including a bottom plate, a top plate, a strap, two fixed side plates and two combined side plate assemblies, the two fixed side plates are relatively arranged on the top surface of the bottom plate along a first direction, the two combined side plate assemblies are relatively arranged on the top surface of the bottom plate along a second direction, the combined side plate assembly is located between the two fixed side plates, the side surfaces of the two fixed side plates, the side surfaces of the two combined side plate assemblies, and the top surface of the bottom plate form a accommodating cavity, the combined side plate assembly includes a lower side plate assembly, an upper side plate assembly and a limiting assembly, the lower side plate assembly is arranged on the top surface of the bottom plate, the top surface of the lower side plate assembly is provided with a lower groove, The lower groove is connected to the accommodating cavity, the limiting assembly is arranged in the accommodating cavity, a first fixed gap is formed between the limiting assembly and the lower side plate assembly, the upper side plate assembly is inserted into the first fixed gap, the two side surfaces of the upper side plate assembly opposite to each other along the second direction respectively abut against the limiting assembly and the lower side plate assembly, the bottom surface of the upper side plate assembly abuts against the top surface of the lower side plate assembly, the bottom surface of the upper side plate assembly is provided with a first upper groove corresponding to the lower groove, the top plate cover is arranged above the accommodating cavity to close the accommodating cavity, the bottom surface of the top plate abuts against the top surface of the upper side plate assembly, and the strap is wrapped around the top plate and the bottom plate to fix the top plate.

[0005] Optionally, the combined side panel assembly includes two limit assemblies, and the two limit assemblies are respectively located on the side walls of the two fixed side panels.

[0006] Optionally, the limiting assembly includes a first limiting protrusion and a second limiting protrusion, the lower plate assembly, the first limiting protrusion and the second limiting protrusion are sequentially arranged along the second direction, a first fixed gap is formed between the first limiting protrusion and the lower plate assembly, and a second fixed gap is formed between the first limiting protrusion and the second limiting protrusion;

[0007] The combined side panel assembly also includes an upper reinforcing support plate, a second upper groove corresponding to the first upper groove is provided on the bottom surface of the upper reinforcing support plate, the upper reinforcing support plate is arranged in the second fixed gap, the two side surfaces of the upper reinforcing support plate along the second direction respectively abut against the first limiting protrusion and the second limiting protrusion, and the top plate closes the top of the second fixed gap.

[0008] Optionally, the limiting assembly further includes a connecting portion, which is disposed in the second fixed gap and below the upper reinforcing support plate, and two opposite side surfaces of the connecting portion along the second direction are respectively connected to the first limiting protrusion and the second limiting protrusion.

[0009] Optionally, the lower side plate assembly includes a lower shield plate, a lower support plate and two side shield plates, the bottom surfaces of the lower shield plate, the lower support plate and the side shield plates are all arranged on the top surface of the bottom plate, the two side shield plates are arranged on two sides of the lower shield plate that are opposite to each other along the first direction, a clearance gap is formed between the side surfaces of the two side shield plates and the top surface of the lower shield plate, the lower support plate is arranged on the side surface of the side shield plate facing the accommodating cavity, the lower groove is arranged on the top surface of the lower support plate, and a first fixed gap is formed between the side shield plate and the limiting assembly;

[0010] The upper side plate assembly includes an upper shield plate and an upper support plate, the upper shield plate matches the clearance notch, the upper shield plate is inserted into the clearance notch, the upper support plate is arranged on the side of the upper shield plate facing the accommodating cavity, the upper support plate is inserted into the first fixed gap, the upper support plate is connected to the upper shield plate, the first upper groove is arranged on the bottom surface of the upper support plate, and the bottom surface of the top plate is against the top surface of the upper support plate.

[0011] Optionally, the lower side plate assembly also includes a lower reinforcing support plate, which is arranged on the top surface of the bottom plate and on the side of the lower support plate facing the accommodating cavity, and the lower groove includes an outer groove and an inner groove which are connected to each other, the outer groove is arranged on the top surface of the lower support plate, and the inner groove is arranged on the top surface of the lower reinforcing support plate.

[0012] Optionally, a plurality of the lower grooves are provided on the top surface of the lower side plate assembly at intervals along the first direction, and the first upper grooves correspond to the lower grooves one by one.

[0013] Optionally, the angle plates are arranged at intervals along the vertical direction at the intersection of the fixed side panel and the lower side panel assembly, and the cross-section of the angle plates perpendicular to the vertical direction is "L"-shaped, one end of the angle plate is connected to the side of the fixed side panel, and the other end of the angle plate is connected to the side of the lower side panel assembly.

[0014] Optionally, two box feet are further included, and the two box feet are spaced apart on the bottom surface of the bottom plate, and two opposite end surfaces of the box feet are coplanar with two opposite side surfaces of the bottom plate respectively.

[0015] Optionally, a side reinforcing plate is further included, wherein the side reinforcing plate is arranged on the side of the fixed side plate away from the accommodating cavity, and the reinforcing plate is arranged along the edge of the fixed side plate.

[0016] Optionally, two top reinforcing plates are further included, and the top reinforcing plates are arranged on the top surface of the top plate in a one-to-one correspondence with the upper side plate assemblies.

[0017] Compared with the prior art, the box body of the utility model has the following beneficial effects:

[0018] The utility model arranges two fixed side panels and two combined side panel assemblies on the top surface of the bottom plate to form a accommodating cavity for placing coiled materials, wherein the combined side panel assembly comprises a lower side panel assembly, an upper side panel assembly and a limiting assembly, the lower side panel assembly is arranged on the top surface of the bottom plate, the limiting boss is arranged in the accommodating cavity and forms a first fixed gap with the lower side panel assembly, the upper side panel assembly is inserted into the first fixed gap, the two side surfaces of the upper side panel assembly along the second direction respectively abut against the lower side panel assembly and the limiting boss to limit the movement of the upper side panel assembly along the second direction, the bottom surface of the upper side panel assembly abuts against the top surface of the lower side panel assembly, the top plate abuts against the top surface of the upper side panel assembly, and is wrapped around the top plate and the bottom plate by a strap to limit the movement of the upper side panel assembly Moving in the vertical direction, the top surface of the lower side plate assembly is provided with a lower groove, and the bottom surface of the upper side plate assembly is provided with a first upper groove corresponding to the lower groove, and the cylinder of the coil is placed in the first upper groove and the lower groove, and the first upper groove and the lower groove cooperate to clamp the cylinder from above and below respectively, and also limit the movement of the upper side plate assembly along the first direction, and the end surface of the cylinder abuts against the groove wall of the first upper groove and the groove wall of the lower groove, thereby stably fixing the coil to prevent it from rising and jumping; further, the top plate cover is arranged above the accommodating cavity to achieve the effect of closing the accommodating cavity and preventing impurities from entering the accommodating cavity to contaminate the coil; further, the structure of the box body of the utility model can be automatically disassembled and assembled by equipment, and can also be disassembled and assembled manually by a single person, which has the effect of convenient and quick disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2This is an exploded view of the utility model ignoring the upper reinforcing support plate.

[0021] Figure 3 It is a top cross-sectional view of the assembly coil of the utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the utility model in which the coil is assembled and the top plate and upper side plate components are ignored.

[0023] Figure 5 It is a schematic diagram of the structure of the lower side plate assembly and the limit assembly.

[0024] Figure 6 It is a structural schematic diagram of the upper side plate assembly.

[0025] Figure numerals: 1. bottom plate; 2. fixed side plate; 3. combined side plate assembly; 31. lower side plate assembly; 311. lower groove; 312. lower shield plate; 313. side shield plate; 314. lower support plate; 315. lower reinforcing support plate; 32. upper side plate assembly; 321. first upper groove; 322. upper shield plate; 323. upper support plate; 33. limiting assembly; 331. first limiting protrusion; 332. second limiting protrusion; 333. connecting part; 34. first fixed gap; 35. second fixed gap; 36. upper reinforcing support plate; 4. corner plate; 5. box foot; 6. side reinforcing plate; 7. top reinforcing plate; 8. top plate; 9. coiled material. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] like Figures 1 to 6As shown, a box body of the utility model includes a bottom plate 1, a top plate 8, a strap, two fixed side plates 2 and two combined side plate assemblies 3, the two fixed side plates 2 are relatively arranged on the top surface of the bottom plate 1 along a first direction, the two combined side plate assemblies 3 are relatively arranged on the top surface of the bottom plate 1 along a second direction, the combined side plate assembly 3 is located between the two fixed side plates 2, the side surfaces of the two fixed side plates 2, the side surfaces of the two combined side plate assemblies 3, and the top surface of the bottom plate 1 form a accommodating cavity, the combined side plate assembly 3 includes a lower side plate assembly 31, an upper side plate assembly 32 and a limiting assembly 33, the lower side plate assembly 31 is arranged on the top surface of the bottom plate 1, the top surface of the lower side plate assembly 31 is provided with a lower groove 311, and the lower groove 311 is connected to the The accommodating cavity, the limiting component 33 is arranged in the accommodating cavity, a first fixed gap 34 is formed between the limiting component 33 and the lower side plate component 31, the upper side plate component 32 is inserted into the first fixed gap 34, the two side surfaces of the upper side plate component 32 opposite to each other along the second direction respectively abut against the limiting component 33 and the lower side plate component 31, the bottom surface of the upper side plate component 32 abuts against the top surface of the lower side plate component 31, the bottom surface of the upper side plate component 32 is provided with a first upper groove 321 corresponding to the lower groove 311, the top plate 8 is covered on the top of the accommodating cavity to close the accommodating cavity, the bottom surface of the top plate 8 abuts against the top surface of the upper side plate component 32, and the strap is wrapped around the top plate 8 and the bottom plate 1 to fix the top plate 8.

[0030] In the above technical solution, the accommodating cavity is used to place the coil 9; further, in the combined side panel assembly 3, the upper side panel assembly 32 is inserted into the first fixed gap 34, and the two side surfaces of the upper side panel assembly 32 along the second direction respectively abut against the lower side panel assembly 31 and the limiting boss to limit the upper side panel assembly 32 from moving in the second direction, the bottom surface of the upper side panel assembly 32 abuts against the top surface of the lower side panel assembly 31, the top plate 8 abuts against the top surface of the upper side panel assembly 32, and is wrapped around the top plate 8 and the bottom plate 1 by a strap to limit the upper side panel assembly 32 from moving in the vertical direction, the top surface of the lower side panel assembly 31 is provided with a lower groove 311, and the bottom surface of the upper side panel assembly 32 is provided with a first upper groove 32 corresponding to the lower groove 311 1. The cylinder of the coil 9 is placed in the first upper groove 321 and the lower groove 311. The first upper groove 321 and the lower groove 311 cooperate to clamp the cylinder from the top and bottom respectively, and at the same time, the upper side plate assembly 32 can be restricted from moving in the first direction. The end surface of the cylinder abuts against the groove wall of the first upper groove 321 and the groove wall of the lower groove 311, so as to stably fix the coil 9 and prevent it from jumping up and jumping. Furthermore, the top plate 8 is covered above the accommodating cavity to achieve the effect of closing the accommodating cavity and preventing impurities from entering the accommodating cavity to contaminate the coil 9. Furthermore, the structure of the box body of the utility model can be automatically disassembled and assembled by the equipment, and can also be manually disassembled and assembled by a single person, which has the effect of convenient and quick disassembly and assembly.

[0031] Furthermore, in order to ensure that the two sides of the upper side panel assembly 32 can be stably pressed against the limit assembly 33 and the lower side panel assembly 31 respectively after being inserted into the first fixed gap 34, the combined side panel assembly 3 includes two limit assemblies 33, and the two limit assemblies 33 are respectively located on the side walls of the two fixed side panels 2, wherein the combined side panel assembly 3 can be connected to the side wall of the fixed side panel 2, and can also be connected to the lower side panel assembly 31.

[0032] Furthermore, the limiting assembly 33 includes a first limiting protrusion 331 and a second limiting protrusion 332. The lower side panel assembly 31, the first limiting protrusion 331 and the second limiting protrusion 332 are sequentially arranged along the second direction. A first fixed gap 34 is formed between the first limiting protrusion 331 and the lower side panel assembly 31, and a second fixed gap 35 is formed between the first limiting protrusion 331 and the second limiting protrusion 332. The combined side panel assembly 3 also includes an upper reinforcing support plate 36. The bottom surface of the upper reinforcing support plate 36 is provided with a second upper groove corresponding to the first upper groove 321. The plate 36 is arranged in the second fixed gap 35, and the two side surfaces of the upper reinforcing support plate 36 along the second direction respectively abut against the first limiting protrusion 331 and the second limiting protrusion 332, and the top plate 8 closes the top of the second fixed gap, wherein the upper reinforcing support plate 36 can move in the vertical direction in the second fixed gap, and when the coil 9 is installed in the accommodating chamber, the second upper groove is stuck on the top surface of the cylinder, and the top surface of the upper reinforcing support plate 36 abuts against the bottom surface of the top plate 8 to increase the area of ​​support from top to bottom, reduce the burden on the upper side plate assembly 32, and reduce the risk of deformation of the upper side plate assembly 32.

[0033] Furthermore, the limiting assembly 33 also includes a connecting portion 333, which is arranged in the second fixed gap and is located below the upper reinforcing support plate 36. The two side surfaces of the connecting portion 333 opposite to each other along the second direction are respectively connected to the first limiting protrusion 331 and the second limiting protrusion 332. The connecting portion 333 is used to connect the first limiting protrusion 331 and the second limiting protrusion 332, and when there is no coil 9 installed in the accommodating cavity, the top surface of the connecting portion 333 can be used to support the upper reinforcing support plate 36 to prevent the upper reinforcing support plate 36 from falling to the bottom of the accommodating cavity, making it convenient for workers to take out the upper reinforcing support plate 36 before loading the coil 9.

[0034] Furthermore, the lower side plate assembly 31 includes a lower shield plate 312, a lower support plate 314 and two side shield plates 313, the bottom surfaces of the lower shield plate 312, the lower support plate 314 and the side shield plates 313 are all arranged on the top surface of the bottom plate 1, the two side shield plates 313 are arranged on the two sides of the lower shield plate 312 opposite to each other along the first direction, a clearance gap is formed between the side surfaces of the two side shield plates 313 and the top surface of the lower shield plate 312, the lower support plate 314 is arranged on the side surface of the side shield plate 313 facing the accommodating cavity, and the lower groove 311 is arranged on the top surface of the lower support plate 314; the upper side plate assembly 32 includes an upper shield plate 322 and an upper support plate 323, the upper The baffle plate 322 matches the clearance gap, the upper baffle plate 322 is inserted into the clearance gap, the upper support plate 323 is arranged on the side of the upper baffle plate 322 facing the accommodating cavity, the upper support plate 323 is inserted into the first fixed gap 34, the upper support plate 323 is connected to the upper baffle plate 322, the first upper groove 321 is arranged on the bottom surface of the upper support plate 323, the bottom surface of the top plate 8 is against the top surface of the upper support plate 323, wherein the lower baffle plate 312, the two side baffle plates 313 and the upper baffle plate 322 jointly close the opposite side of the accommodating cavity along the second direction, further, the end face of the roll of the coil 9 is against the upper baffle plate 322 or the lower baffle plate 312.

[0035] Furthermore, the lower side plate assembly 31 also includes a lower reinforcing support plate 315, which is arranged on the top surface of the bottom plate 1 and on the side of the lower support plate 314 facing the accommodating cavity. The lower groove 311 includes an outer groove and an inner groove that are connected to each other. The outer groove is arranged on the top surface of the lower support plate 314, and the inner groove is arranged on the top surface of the lower reinforcing support plate 315 to strengthen the supporting strength of the lower groove 311 and reduce the risk of deformation of the lower support plate 314.

[0036] Furthermore, a plurality of lower grooves 311 are provided on the top surface of the lower side plate assembly 31 at intervals along the first direction, and the first upper grooves 321 correspond to the lower grooves 311 one by one, so that a plurality of coils 9 can be placed in one accommodating cavity.

[0037] Furthermore, it also includes a plurality of angle plates 4, which are arranged at intervals along the vertical direction at the intersection of the fixed side plate 2 and the lower side plate assembly 31, and the cross-section of the angle plate 4 perpendicular to the vertical direction is "L"-shaped, one end of the angle plate 4 is connected to the side of the fixed side plate 2, and the other end of the angle plate 4 is connected to the side of the lower side plate assembly 31, so that the fixed side plate 2 and the lower side plate assembly 31 are tightly connected to prevent a gap from appearing between the fixed side plate 2 and the lower side plate assembly 31.

[0038] Furthermore, it includes two box feet 5, which are spaced apart on the bottom surface of the base plate 1, and the two opposite end surfaces of the box feet 5 are coplanar with the two opposite side surfaces of the base plate 1, so as to raise the base plate 1 so that a forklift can be inserted between the two box feet 5 or on both sides of the two box feet 5 to facilitate lifting and transporting the box.

[0039] Furthermore, the first upper groove 321, the second upper groove 361 and the lower groove 311 can all be semicircular grooves to adapt to the shape of the cylinder of the coil 9, increase the contact area between the first upper groove 321 and the lower groove 311 and the cylinder, and clamp the cylinder more stably.

[0040] Furthermore, it also includes a side reinforcing plate 6, which is arranged on the side of the fixed side plate 2 away from the accommodating cavity, and the reinforcing plate is arranged along the edge of the fixed side plate 2 to strengthen the strength of the edge of the fixed side plate 2.

[0041] Furthermore, two top reinforcing plates 7 are included, and the top reinforcing plates 7 are arranged on the top surface of the top plate 8 corresponding to the upper side plate assemblies 32 one by one, so as to strengthen the strength of the top plate 8 corresponding to the position of the upper side plate assemblies 32, and reduce the risk of the upper side plate assemblies 32 pushing up and deforming the top plate 8.

[0042] Furthermore, the specific connection methods of fixed setting and fixed connection refer to the relative position relationship of two components that can be fixedly connected, including fixing by connecting parts, fixing by welding, fixing by adhesives, fixing by integral molding, and fixing by snap connections.

[0043] Furthermore, the connecting parts include fasteners, straps, ties, pneumatic connecting elements, hydraulic connecting elements, flange plates, Velcro, and buttons.

[0044] In summary, the embodiment of the utility model provides a box, and its technical effects are:

[0045] The utility model arranges two fixed side panels 2 and two combined side panel assemblies 3 on the top surface of the bottom plate 1 to form a accommodating cavity for placing the coil 9, wherein the combined side panel assembly 3 comprises a lower side panel assembly 31, an upper side panel assembly 32 and a limiting assembly 33, the lower side panel assembly 31 is arranged on the top surface of the bottom plate 1, the limiting boss is arranged in the accommodating cavity, and a first fixed gap 34 is formed between the lower side panel assembly 31, the upper side panel assembly 32 is inserted into the first fixed gap 34, and the two side surfaces of the upper side panel assembly 32 along the second direction respectively abut against the lower side panel assembly 31 and the limiting boss to limit the upper side panel assembly 32 from moving along the second direction, the bottom surface of the upper side panel assembly 32 abuts against the top surface of the lower side panel assembly 31, the top plate 8 abuts against the top surface of the upper side panel assembly 32, and is wrapped around the top plate 8 and the bottom plate 1 by a strap to limit the upper side panel assembly 3 2 moves in the vertical direction, the top surface of the lower side plate assembly 31 is provided with a lower groove 311, and the bottom surface of the upper side plate assembly 32 is provided with a first upper groove 321 corresponding to the lower groove 311, and the cylinder of the coil 9 is placed in the first upper groove 321 and the lower groove 311. The first upper groove 321 and the lower groove 311 cooperate to clamp the cylinder from the top and the bottom respectively, and at the same time, the upper side plate assembly 32 can be limited to move in the first direction. The end surface of the cylinder abuts against the groove wall of the first upper groove 321 and the groove wall of the lower groove 311, so as to stably fix the coil 9 and prevent it from jumping up and jumping; further, the top plate 8 is covered above the accommodating cavity to achieve the effect of closing the accommodating cavity and preventing impurities from entering the accommodating cavity to contaminate the coil 9; further, the structure of the box body of the utility model can be automatically disassembled and assembled by the equipment, and can also be disassembled and assembled manually by a single person, which has the effect of convenient and quick disassembly and assembly.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A box, characterized in that: The invention comprises a bottom plate (1), a top plate (8), a binding strap, two fixed side plates (2) and two combined side plate assemblies (3); the two fixed side plates (2) are arranged on the top surface of the bottom plate (1) in a first direction relative to each other; the two combined side plate assemblies (3) are arranged on the top surface of the bottom plate (1) in a second direction relative to each other; the combined side plate assembly (3) is located between the two fixed side plates (2); the side surfaces of the two fixed side plates (2), the side surfaces of the two combined side plate assemblies (3) and the top surface of the bottom plate (1) form a receiving cavity; the combined side plate assembly (3) comprises a lower side plate assembly (31), an upper side plate assembly (32) and a limiting assembly (33); the lower side plate assembly (31) is arranged on the top surface of the bottom plate (1); the top surface of the lower side plate assembly (31) is provided with a lower groove (311); the lower groove (311) is connected to the receiving cavity; The limiting assembly (33) is arranged in the accommodating cavity, and a first fixed gap (34) is formed between the limiting assembly (33) and the lower side plate assembly (31); the upper side plate assembly (32) is inserted into the first fixed gap (34); two side surfaces of the upper side plate assembly (32) opposite to each other along the second direction respectively abut against the limiting assembly (33) and the lower side plate assembly (31); the bottom surface of the upper side plate assembly (32) abuts against the top surface of the lower side plate assembly (31); the bottom surface of the upper side plate assembly (32) is provided with a first upper groove (321) corresponding to the lower groove (311); the top plate (8) is covered above the accommodating cavity to close the accommodating cavity; the bottom surface of the top plate (8) abuts against the top surface of the upper side plate assembly (32); and the binding strap is wrapped around the top plate (8) and the bottom plate (1) to fix the top plate (8).

2. The box according to claim 1, characterized in that: The combined side panel assembly (3) comprises two limit assemblies (33), and the two limit assemblies (33) are respectively located on the side walls of the two fixed side panels (2).

3. The box according to claim 1, characterized in that: The limiting assembly (33) comprises a first limiting protrusion (331) and a second limiting protrusion (332); the lower side plate assembly (31), the first limiting protrusion (331) and the second limiting protrusion (332) are arranged in sequence along the second direction; a first fixed gap (34) is formed between the first limiting protrusion (331) and the lower side plate assembly (31); and a second fixed gap (35) is formed between the first limiting protrusion (331) and the second limiting protrusion (332); The combined side panel assembly (3) also includes an upper reinforcing support plate (36), the bottom surface of the upper reinforcing support plate (36) is provided with a second upper groove corresponding to the first upper groove (321), the upper reinforcing support plate (36) is arranged in the second fixed gap (35), the two side surfaces of the upper reinforcing support plate (36) along the second direction respectively abut against the first limiting protrusion (331) and the second limiting protrusion (332), and the top plate (8) closes the top of the second fixed gap.

4. The box according to claim 3, characterized in that: The limiting assembly (33) further comprises a connecting portion (333), wherein the connecting portion (333) is arranged in the second fixed gap and is located below the upper reinforcing support plate (36), and two side surfaces of the connecting portion (333) opposite to each other along the second direction are respectively connected to the first limiting protrusion (331) and the second limiting protrusion (332).

5. The box according to claim 1, characterized in that: The lower side plate assembly (31) comprises a lower shielding plate (312), a lower supporting plate (314) and two side shielding plates (313); the bottom surfaces of the lower shielding plate (312), the lower supporting plate (314) and the side shielding plates (313) are all arranged on the top surface of the bottom plate (1); the two side shielding plates (313) are arranged on two opposite sides of the lower shielding plate (312) along a first direction; a clearance gap is formed between the side surfaces of the two side shielding plates (313) and the top surface of the lower shielding plate (312); the lower supporting plate (314) is arranged on the side surface of the side shielding plate (313) facing the accommodating cavity; the lower groove (311) is arranged on the top surface of the lower supporting plate (314); and a first fixed gap is formed between the side shielding plates (313) and the limiting assembly (33); The upper side plate assembly (32) comprises an upper shield plate (322) and an upper support plate (323); the upper shield plate (322) matches the clearance notch; the upper shield plate (322) is inserted into the clearance notch; the upper support plate (323) is arranged on the side of the upper shield plate (322) facing the accommodating cavity; the upper support plate (323) is inserted into the first fixed gap (34); the upper support plate (323) is connected to the upper shield plate (322); the first upper groove (321) is arranged on the bottom surface of the upper support plate (323); and the bottom surface of the top plate (8) is against the top surface of the upper support plate (323).

6. The box according to claim 5, characterized in that: The lower side plate assembly (31) also includes a lower reinforcing support plate (315), which is arranged on the top surface of the bottom plate (1) and on the side of the lower support plate (314) facing the accommodating cavity. The lower groove (311) includes an outer groove and an inner groove that are interconnected. The outer groove is arranged on the top surface of the lower support plate (314), and the inner groove is arranged on the top surface of the lower reinforcing support plate (315).

7. The box according to claim 1, characterized in that: A plurality of lower grooves (311) are provided on the top surface of the lower side plate assembly (31) at intervals along a first direction, and the first upper grooves (321) correspond to the lower grooves (311) one by one.

8. The box according to claim 1, characterized in that: It also includes a plurality of angle plates (4), wherein the angle plates (4) are arranged at intervals along the vertical direction at the intersection of the fixed side plate (2) and the lower side plate assembly (31), and the cross-section of the angle plate (4) perpendicular to the vertical direction is "L"-shaped, one end of the angle plate (4) is connected to the side of the fixed side plate (2), and the other end of the angle plate (4) is connected to the side of the lower side plate assembly (31).

9. The box according to claim 1, characterized in that: It also comprises two box feet (5), the two box feet (5) are arranged at intervals on the bottom surface of the bottom plate (1), and the two opposite end surfaces of the box feet (5) are respectively coplanar with the two opposite side surfaces of the bottom plate (1).

10. The box according to claim 1, characterized in that: It also comprises a side reinforcing plate (6), wherein the side reinforcing plate (6) is arranged on the side of the fixed side plate (2) away from the accommodating cavity, and the reinforcing plate is arranged along the edge of the fixed side plate (2).

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