Carbon fiber box and LED display screen

Abstract

The utility model belongs to the technical field of light-emitting diode (LED) display, and relates to a carbon fiber box body and an LED display screen, a plurality of carbon fiber box bodies are spliced to form the LED display screen, each carbon fiber box body comprises a carbon fiber frame, a control box, a left-right radian locking unit and an up-down hoisting locking unit, and the left-right radian locking unit comprises a left lock assembly and a right lock assembly. The up-down hoisting locking unit comprises an upper hoisting piece and a lower matching piece; the carbon fiber frame comprises a frame, a cross beam, a longitudinal beam and a reinforcing beam which are integrally formed; the display box has the advantages that the carbon fiber frame is adopted, the box body is high in strength, light in weight and stable and firm in structure, disassembly and assembly operation is more labor-saving, the left lock assembly and the right lock assembly are installed on the left side and the right side of the frame respectively, and the upper hoisting piece and the lower matching piece are installed on the upper side and the lower side respectively, so that rapid disassembly and assembly of adjacent display box bodies can be achieved; the technical problem that an existing die-casting box is heavy, so that time and labor are wasted during disassembly and assembly of the LED display screen is solved.

Description

Technical Field

[0001] This utility model relates to the field of LED display technology, and in particular to a carbon fiber housing and an LED display screen. Background Technology

[0002] With its unique advantages, LED large screen displays are widely used in various places such as entertainment and sports, finance and securities, and transportation stations, becoming the most common display medium for information dissemination, news release, and advertising.

[0003] Existing LED display cabinets are typically made of die-cast aluminum alloy, which is bulky and requires multiple people to assemble and disassemble, making handling time-consuming and labor-intensive. This also hinders both assembly and transportation. The die-cast aluminum alloy cabinet manufacturing process is time-consuming and has low production efficiency. When assembling existing LED display cabinets, screws, clips, or locking mechanisms are commonly used. These methods require tools, involve cumbersome procedures, and are time-consuming. During assembly and disassembly, space constraints and operator error can easily lead to cabinet damage or assembly / disassembly failures. This results in operational difficulties, a poor user experience, and unsuitability for rental cabinets that require frequent disassembly and assembly. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a carbon fiber housing and an LED display screen, which solves the technical problem that the existing die-cast housing is bulky, resulting in time-consuming and laborious disassembly and assembly of the LED display screen.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] In a first aspect, this utility model provides a carbon fiber box body, including a carbon fiber frame, a control box, a left and right arc locking unit and an upper and lower hoisting locking unit. The left and right arc locking unit includes a left locking component and a right locking component, and the upper and lower hoisting locking unit includes an upper hoisting component and a lower mating component.

[0009] The carbon fiber frame includes an integrally molded frame, crossbeams, longitudinal beams, and reinforcing beams. The two ends of the crossbeams are connected to a pair of opposite sides of the frame, and the two ends of the longitudinal beams are connected to another pair of opposite sides of the frame. The crossbeams and longitudinal beams intersect each other perpendicularly. The two ends of the reinforcing beams are connected to the frame and the longitudinal beams, respectively. The control box is installed on the longitudinal beams. The left and right locking assemblies are installed on the left and right sides of the frame, respectively. The upper lifting assembly and the lower mating assembly are installed on the upper and lower sides of the frame.

[0010] Optionally, the control box is an elongated box-shaped structure, the width of which does not exceed the width of the longitudinal beam.

[0011] Optionally, the left locking assembly includes a mounting base, a handle, a resilient pressing member, and a locking ring. The mounting base is mounted on the left side of the carbon fiber frame. One end of the handle is rotatably connected to the mounting base. One end of the locking ring is rotatably connected to the middle of the handle, and the other end is used to engage with the right locking assembly. The resilient pressing member is rotatably connected to the handle, with one end exposed on the outer wall of the handle and the other end pressed against the locking ring.

[0012] The right-side locking assembly includes a fixed mounting module and an angle adjustment module. The fixed mounting module is connected to the right side of the carbon fiber frame, and the angle adjustment module is slidably mounted on the fixed mounting module, with the two engaging. The angle adjustment module has a locking position that engages with the locking ring.

[0013] Optionally, the elastic pressing component is provided with a spring, and one end of the spring abuts against the elastic pressing component and the other end abuts against the locking ring. The rotating shaft passes through the handle, the elastic pressing component and the spring in sequence, and the elastic pressing component is installed in the handle.

[0014] The inner end of the elastic pressing component is provided with a first protrusion and a second protrusion, the mounting base is provided with a groove that mates with the first protrusion, and the second protrusion abuts against the locking ring.

[0015] Optionally, the locking ring includes a rotating rod and a U-shaped rod, the rotating rod being rotatably engaged with the handle, and its two ends extending from the handle and respectively connected to the two ends of the U-shaped rod;

[0016] The rotating rod has an annular groove at the position opposite to the second protrusion.

[0017] Optionally, the fixed installation module includes a fixed plate and a toothed fastener, and the angle adjustment module includes an arc adjustment component and a toothed sliding structure. The toothed fastener is connected to the carbon fiber frame. The two fixed plates are respectively installed at the upper and lower ends of the toothed fastener. The arc adjustment component is placed between the two fixed plates and slides with the fixed plates. The toothed sliding structure is fixedly connected to the arc adjustment component and engages with the toothed fastener.

[0018] Optionally, the toothed fastener is in the shape of a triangular prism, and the side that contacts the toothed sliding structure is an arc-shaped surface and has toothed protrusions.

[0019] Optionally, both fixed plates are provided with a first sliding guide groove, and the first slide rod is fixedly installed in the angle adjustment module, with its two ends extending into the two first sliding guide grooves respectively;

[0020] The curvature adjustment component is provided with a second sliding guide groove, which is offset from the first sliding guide groove and is not connected to it. The second slide rod passes through the second sliding guide groove and is fixedly installed on the fixed plate.

[0021] Optionally, the curvature adjustment component includes a splicing panel and an arc-shaped panel. The splicing panel is provided with positioning beads, the top surface of the arc-shaped panel is provided with scale, and a toothed sliding structure is exposed on the side wall of the arc-shaped panel.

[0022] Optionally, the upper and lower lifting and locking unit includes an upper lifting component and a lower mating component. The upper lifting component is provided with a positioning column, and the lower mating component is provided with a matching positioning groove.

[0023] Secondly, this utility model embodiment provides an LED display screen, including the aforementioned carbon fiber housing, with a display module installed on the back of the carbon fiber housing to form a display unit, and multiple display units spliced ​​together to form an LED display screen.

[0024] (III) Beneficial Effects

[0025] The beneficial effects of this utility model are:

[0026] 1. This utility model discloses a carbon fiber enclosure and an LED display screen. Multiple carbon fiber enclosures are spliced ​​together to form an LED display screen. Due to the use of a carbon fiber frame, which includes a frame, crossbeams, longitudinal beams, and reinforcing beams, and the control box is installed on the longitudinal beams, the enclosure has high strength, is lightweight, and has a stable and reliable structure. Disassembly and assembly are more labor-saving. Left and right locking components are installed on the left and right sides of the frame, respectively, and upper and lower lifting components are installed on the upper and lower sides, respectively. Compared with the prior art, it can realize the quick disassembly and assembly of adjacent carbon fiber frames, saving manpower and solving the technical problem that the existing die-cast enclosures are bulky, resulting in time-consuming and labor-intensive disassembly and assembly of LED displays.

[0027] 2. The left locking assembly includes a mounting base, handle, elastic pressing element, and locking ring. The right locking assembly includes a fixed mounting module and an angle adjustment module. The structure is simple. When splicing the screen, pressing the elastic pressing element releases the pressure on the locking ring, allowing the locking ring to rotate and lock together with the angle adjustment module of the right locking assembly on the adjacent carbon fiber frame, thus connecting the left and right adjacent carbon fiber frames. Conversely, pressing the elastic pressing element rotates the locking ring to release the locking effect on the adjacent carbon fiber frame, facilitating quick and easy disassembly of the carbon fiber frame or adjustment of the splicing curvature of the cabinet.

[0028] 3. The toothed sliding structure of the right locking component can slide relative to the toothed fixing component, causing the arc adjustment component fixed together with the toothed sliding structure to slide, thereby changing the splicing arc of the two adjacent carbon fiber frames on the left and right, which can splice a curved screen.

[0029] 4. The front of the carbon fiber frame is molded as a single piece, eliminating the need for machining, thus reducing production difficulty and increasing production efficiency. Attached Figure Description

[0030] Figure 1 This is a three-dimensional schematic diagram of the carbon fiber housing of Embodiment 1 of the present invention, which is a carbon fiber housing and an LED display screen.

[0031] Figure 2 This is a three-dimensional schematic diagram of the carbon fiber frame of Embodiment 1 of the present invention, which is a carbon fiber housing and an LED display screen.

[0032] Figure 3 This is a three-dimensional schematic diagram of the left locking assembly of Embodiment 1 of the present invention, which describes a carbon fiber housing and an LED display screen.

[0033] Figure 4 This is an exploded view of the left locking assembly of Embodiment 1 of the present invention, which describes a carbon fiber housing and an LED display screen.

[0034] Figure 5 This is a three-dimensional schematic diagram of the right-lock assembly of Embodiment 1 of the present invention, which describes a carbon fiber housing and an LED display screen.

[0035] Figure 6 This is a schematic cross-sectional view of the carbon fiber housing in Embodiment 1 of the present invention, which describes a carbon fiber housing and an LED display screen.

[0036] Figure 7 for Figure 6 Enlarged diagram of point A in the middle.

[0037] [Explanation of Labels in the Attached Image]

[0038] 1. Carbon fiber frame; 11. Side frame; 12. Longitudinal beams; 13. Crossbeams; 14. Reinforcing beams;

[0039] 2. Control box;

[0040] 31. Left lock assembly; 311. Handle; 312. Elastic pressing element; 3121. First protrusion; 3122. Second protrusion; 313. Locking ring; 3131. Rotating rod; 3132. Annular groove; 3133. U-shaped rod; 314. Mounting base;

[0041] 32. Right lock assembly; 321. Fixing plate; 322. Toothed fixing member; 323. Curvature adjusting member; 324. Toothed sliding structure; 325. Positioning ball; 326. Locking position; 327. First sliding guide groove; 328. Second sliding guide groove;

[0042] 4. Upper and lower lifting and locking unit; 41. Upper lifting component; 411. Positioning column; 42. Lower mating component. Detailed Implementation

[0043] To better explain and facilitate understanding of this utility model, a detailed description of its specific embodiments is provided below with reference to the accompanying drawings. In this document, directional terms such as "upper" and "lower" are used interchangeably with... Figure 3 With the orientation of the control box 2 as a reference, the direction of the control box 2 is the "front", and the direction of the display surface is the "back".

[0044] This utility model provides a carbon fiber enclosure and LED display screen. The carbon fiber enclosure includes a carbon fiber frame, a control box, left and right arc locking units, and upper and lower lifting locking units. The left and right arc locking units include a left locking assembly and a right locking assembly, and the upper and lower lifting locking units include an upper lifting component and a lower fitting component. The carbon fiber frame includes an integrally formed frame, crossbeams, longitudinal beams, and reinforcing beams. The two ends of the crossbeams are respectively connected to one set of opposite sides of the frame, and the two ends of the longitudinal beams are respectively connected to another set of opposite sides of the frame. The crossbeams and longitudinal beams intersect each other perpendicularly. The two ends of the reinforcing beams are respectively connected to the frame and the longitudinal beams. The control box is installed on the longitudinal beams. On the beam, the left and right locking components are installed on the left and right sides of the frame, respectively, while the upper lifting component and lower mating component are installed on the upper and lower sides of the frame. Due to the use of a carbon fiber frame, the cabinet is strong, lightweight, and structurally stable and reliable, making disassembly and assembly operations easier. The left and right locking components are installed on the left and right sides of the frame, respectively, and the upper lifting component and lower mating component are installed on the upper and lower sides, respectively, which allows for quick disassembly and assembly of the cabinet. Compared with existing technologies, it can realize the rapid disassembly and assembly of the display cabinet, saving manpower and solving the technical problem that the existing die-cast cabinets are bulky, resulting in time-consuming and labor-intensive disassembly and assembly operations of LED displays.

[0045] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0046] Example 1:

[0047] Reference Figures 1 to 5 This embodiment 1 provides a carbon fiber housing, including a carbon fiber frame 1, a control box 2, a left and right arc locking unit, and an upper and lower lifting locking unit 4. The left and right arc locking unit includes a left locking assembly 31 and a right locking assembly 32. The upper and lower lifting locking unit 4 includes an upper lifting component 41 and a lower mating component 42.

[0048] Among them, see Figure 1 and Figure 2The carbon fiber frame 1 includes a frame 11, a crossbeam 13, a longitudinal beam 12, and a reinforcing beam 14. The two ends of the crossbeam 13 are connected to one pair of opposite sides of the frame 11, and the two ends of the longitudinal beam 12 are connected to the other pair of opposite sides of the frame 11. The crossbeam 13 and longitudinal beam 12 intersect perpendicularly. The two ends of the reinforcing beam 14 are connected to both the frame 11 and the longitudinal beam 12. The control box 2 is bolted to the longitudinal beam 12. The left locking assembly 31 and the right locking assembly 32 are installed on the left and right sides of the frame 11, respectively. The upper lifting component 41 and the lower mating component 42 are installed on the upper and lower sides of the frame 11, respectively. When splicing the LED display screen, the left locking assembly 31 of the carbon fiber housing locks with the right locking assembly 32 of the adjacent carbon fiber housing, connecting two adjacent carbon fiber frames 1 together. The upper and lower adjacent carbon fiber housings are positioned and installed using the upper and lower lifting locking units 4.

[0049] The carbon fiber cabinet of this application adopts an integrally molded carbon fiber frame 1. The carbon fiber frame 1 is provided with a frame 11, a crossbeam 13, a longitudinal beam 12 and a reinforcing beam 14. Therefore, the carbon fiber cabinet is lightweight and thin, with good strength and a stable and reliable structure. Thus, the disassembly and assembly operations can be carried out by a single person, which is more labor-saving. The left locking component 31 and the right locking component 32 are respectively installed on the left and right sides of the frame 11, and the upper lifting component 41 and the lower mating component 42 are respectively installed on the upper and lower sides of the frame 11. Therefore, the cabinet can be quickly disassembled and assembled. Compared with the prior art, it can realize the rapid disassembly and assembly of the display cabinet, save manpower, and solve the technical problem of time-consuming and labor-intensive disassembly and assembly operations of existing LED displays.

[0050] See Figure 2 It should be noted that the back of the carbon fiber frame 1 (the side used to install the display module) is molded as a single piece. This side is very flat, and the entire back of the carbon fiber frame 1 is on the same plane. No machining is required, which makes the production process easier and more efficient, and also ensures the flatness of the splicing of the display module.

[0051] See Figure 1 The control box 2 has a slender box-shaped structure, and its width does not exceed the width of the longitudinal beam 12. The existing die-cast control boxes are large, and their area and weight ratios are relatively large. The carbon fiber box of this application uses a control box 2 with a small area and weight ratio, which reduces the overall weight.

[0052] See Figure 3 , Figure 4 and Figure 7The left locking assembly 31 includes a mounting base 314, a handle 311, a resilient pressing member 312, and a locking ring 313. The mounting base 314 is bolted to the left side of the carbon fiber frame 1. One end of the handle 311 is rotatably connected to the mounting base 314. One end of the locking ring 313 is rotatably connected to the middle of the handle 311, and the other end is used to engage with the right locking assembly 32. The resilient pressing member 312 is rotatably connected to the handle 311, with one end exposed on the outer wall of the handle 311 and the other end pressed against the locking ring 313. The rotation axis of the handle 311 is away from the midpoint of the handle 311, while the rotation axis of the locking ring 313, described later, is closer to the midpoint of the handle 311.

[0053] See Figure 5 and Figure 6 The right locking assembly 32 includes a fixed mounting module and an angle adjustment module. The fixed mounting module is bolted to the right side of the carbon fiber frame 1. The angle adjustment module is slidably mounted on the fixed mounting module, and the two are engaged. The angle adjustment module is provided with a locking position 326 that engages with the locking ring 313.

[0054] See Figure 4 and Figure 7 The elastic pressing member 312 is equipped with a spring, with one end of the spring abutting against the elastic pressing member 312 and the other end abutting against the locking ring 313. The rotating shaft passes through the handle 311, the elastic pressing member 312, and the spring in sequence, installing the elastic pressing member 312 in the handle 311. The inner end of the elastic pressing member 312 is provided with a first protrusion 3121 and a second protrusion 3122. The mounting base 314 is provided with a groove that mates with the first protrusion 3121, and the second protrusion 3122 abuts against the locking ring 313.

[0055] See Figure 4 and Figure 7 The rotating rod 3131 has an annular groove 3132 at a position opposite to the second protrusion 3122. Without external force, the elastic pressing member 312, due to the spring force, presses the second protrusion 3122 tightly against the annular groove 3132, preventing the rotating rod 3131 from rotating. When the operator presses the elastic pressing member 312, it rotates around the pivot under external force, causing the second protrusion 3122 to move away from the annular groove 3132. The operator then rotates the locking ring 313, causing it to rotate around the rotating rod 3131, thus entering or leaving the locking position 326 of the right locking assembly 32 of the adjacent carbon fiber frame 1. This achieves the locking or unlocking function of the adjacent carbon fiber frame 1. Through a simple press and turn, the assembly and disassembly of the adjacent carbon fiber frame 1 can be completed quickly, making the operation convenient and fast. Furthermore, since the locking ring 313 can only be rotated by pressing the elastic pressing member 312, there will be no misoperation during use.

[0056] See Figure 4 The locking ring 313 includes a rotating rod 3131 and a U-shaped rod 3133. The rotating rod 3131 is rotatably engaged with the handle 311, and its two ends extend from the handle 311 and are respectively connected to the two ends of the U-shaped rod 3133. Both ends of the U-shaped rod 3133 pass through the rotating rod 3131 and are threadedly connected to bolts. Therefore, the size of the locking ring 313 can be adjusted by turning the bolts, thereby adjusting the degree of locking on the adjacent carbon fiber frame 1, which is more practical.

[0057] See Figure 5 and Figure 6 The fixed installation module includes a fixed plate 321 and a toothed fixing member 322. The angle adjustment module includes an arc adjustment member 323 and a toothed sliding structure 324. The toothed fixing member 322 is fixedly connected to the carbon fiber frame 1 by bolts. The two fixed plates 321 are respectively installed at the upper and lower ends of the toothed fixing member 322. The arc adjustment member 323 is placed between the two fixed plates 321 and slides with the fixed plates 321. The toothed sliding structure 324 is fixedly connected to the arc adjustment member 323 and meshes with the toothed fixing member 322. The sidewalls of both the arc adjustment member 323 and the toothed sliding structure 324 are recessed inward to form a locking position 326.

[0058] See Figure 6 The toothed fastener 322 is generally triangular prism in shape, and the side that contacts the toothed sliding structure 324 is an arc-shaped surface with toothed protrusions.

[0059] See Figure 5 and Figure 6 Both fixed plates 321 are provided with first sliding guide grooves 327. A first sliding rod is fixedly installed in the angle adjustment module, with both ends extending into the two first sliding guide grooves 327 respectively. The curvature adjustment component 323 is provided with a second sliding guide groove 328. The second sliding guide groove 328 and the first sliding guide groove 327 are staggered and not connected. The second sliding rod passes through the second sliding guide groove 328 and is fixedly installed on the fixed plate 321. Therefore, the movement of the curvature adjustment component 323 is more stable and smooth, resulting in a better curvature adjustment experience.

[0060] Continue reading Figure 5 and Figure 6 The curvature adjustment component 323 includes a splicing panel and an arc-shaped panel. The splicing panel is provided with a positioning bead 325, and the top surface of the arc-shaped panel is provided with a scale to indicate the angle of curvature adjustment. The toothed sliding structure 324 is exposed on the side wall of the arc-shaped panel, and a space is reserved between the two to form an operating port for convenient curvature adjustment operation.

[0061] Continue reading Figure 1The upper lifting component 41 is equipped with a positioning post 411 and a lifting structure, and has positioning and lifting functions. The lower mating component 42 is equipped with a positioning groove that matches the positioning post 411. The carbon fiber box body of this application is a leased box body.

[0062] The control box 2 has power and signal lines at both its upper and lower ends, and the power and signal lines are staggered and not on the same horizontal line. One of the two power lines is an input terminal and the other is an output terminal, and one of the two signal lines is an input terminal and the other is an output terminal.

[0063] Example 2:

[0064] Reference Figures 1 to 7 Based on Embodiment 1, Embodiment 2 provides an LED display screen, including the aforementioned carbon fiber housing. A display module is installed on the back of the carbon fiber housing to form a display unit. The display units can be installed sequentially on a mounting frame, and adjacent display units can be connected by left and right arc locking units to splice together an LED display screen.

[0065] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0066] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0067] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0068] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0069] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A carbon fibre box body characterised in that: It includes a carbon fiber frame (1), a control box (2), a left and right arc locking unit and an upper and lower hoisting locking unit (4). The left and right arc locking unit includes a left locking component (31) and a right locking component (32). The upper and lower hoisting locking unit (4) includes an upper hoisting component (41) and a lower mating component (42). The carbon fiber frame (1) is integrally formed and includes a frame (11), a crossbeam (13), a longitudinal beam (12), and a reinforcing beam (14). The two ends of the crossbeam (13) are respectively connected to a pair of opposite sides of the frame (11), and the two ends of the longitudinal beam (12) are respectively connected to another pair of opposite sides of the frame (11). The crossbeam (13) and the longitudinal beam (12) intersect each other perpendicularly. The two ends of the reinforcing beam (14) are respectively connected to the frame (11) and the longitudinal beam (12). The control box (2) is installed on the longitudinal beam (12). The left locking assembly (31) and the right locking assembly (32) are respectively installed on the left and right sides of the frame (11), and the upper hoisting component (41) and the lower mating component (42) are respectively installed on the upper and lower sides of the frame (11).

2. A carbon fibre box according to claim 1, characterised in that: The control box (2) is an elongated box structure, and its width does not exceed the width of the longitudinal beam (12).

3. A carbon fibre box according to claim 2, wherein: The left locking assembly (31) includes a mounting base (314), a handle (311), an elastic pressing member (312), and a locking ring (313). The mounting base (314) is mounted on the left side of the carbon fiber frame (1). One end of the handle (311) is rotatably connected to the mounting base (314). One end of the locking ring (313) is rotatably connected to the middle of the handle (311), and the other end is used to fasten with the right locking assembly (32). The elastic pressing member (312) is rotatably connected to the handle (311), with one end exposed on the outer wall of the handle (311) and the other end pressed against the locking ring (313). The right lock assembly (32) includes a fixed mounting module and an angle adjustment module. The fixed mounting module is connected to the right side of the carbon fiber frame (1). The angle adjustment module is slidably mounted on the fixed mounting module, and the two are engaged. The angle adjustment module is provided with a locking position (326) that cooperates with the locking ring (313).

4. A carbon fibre box according to claim 3, wherein: The elastic pressing member (312) is provided with a spring, and one end of the spring abuts against the elastic pressing member (312) and the other end abuts against the locking ring (313). The rotating shaft passes through the handle (311), the elastic pressing member (312) and the spring in sequence, and installs the elastic pressing member (312) in the handle (311). The inner end of the elastic pressing member (312) is provided with a first protrusion (3121) and a second protrusion (3122), the mounting base (314) is provided with a groove that cooperates with the first protrusion (3121), and the second protrusion (3122) abuts against the locking ring (313).

5. A carbon fibre box according to claim 4, wherein: The locking ring (313) includes a rotating rod (3131) and a U-shaped rod (3133). The rotating rod (3131) is rotatably engaged with the handle (311), and its two ends extend from the handle (311) and are respectively connected to the two ends of the U-shaped rod (3133). The rotating rod (3131) has an annular groove (3132) at a position opposite to the second protrusion (3122).

6. A carbon fibre box according to claim 5, wherein: The fixed installation module includes a fixed plate (321) and a toothed fixing member (322). The angle adjustment module includes an arc adjustment member (323) and a toothed sliding structure (324). The toothed fixing member (322) is connected to the carbon fiber frame (1). The two fixed plates (321) are respectively installed at the upper and lower ends of the toothed fixing member (322). The arc adjustment member (323) is placed between the two fixed plates (321) and slides with the fixed plates (321). The toothed sliding structure (324) is fixedly connected to the arc adjustment member (323) and meshes with the toothed fixing member (322).

7. A carbon fibre box according to claim 6, wherein: The toothed fastener (322) is generally triangular prism in shape, and the side that contacts the toothed sliding structure (324) is an arc-shaped surface with toothed protrusions.

8. A carbon fibre box according to claim 7, wherein: Both of the fixed plates (321) are provided with a first sliding guide groove (327), and the first slide rod is fixedly installed in the angle adjustment module, with its two ends extending into the two first sliding guide grooves (327) respectively; The arc adjustment component (323) is provided with a second sliding guide groove (328). The second sliding guide groove (328) and the first sliding guide groove (327) are offset from each other and do not communicate with each other. The second slide rod passes through the second sliding guide groove (328) and is fixedly installed on the fixed plate (321).

9. A carbon fiber box according to claim 1, wherein: The upper hoisting component (41) is provided with a positioning post (411), and the lower mating component (42) is provided with a matching positioning groove.

10. An LED display screen, characterized by: The invention includes a carbon fiber housing as described in any one of claims 1 to 9, wherein a display module is mounted on the back of the carbon fiber housing to form a display unit, and multiple display units are spliced ​​together to form an LED display screen.

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