Mounting back frame and carbon fiber LED display screen
By using a carbon fiber tube and cross-shaped mounting bracket, the problem of heavy LED display mounting brackets has been solved, achieving lightweighting and improved stability, reducing installation difficulty, and enhancing the flexibility and diversity of display effects.
Patent Information
- Application Number
- CN202520174840.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-26
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-26
AI Technical Summary
Existing LED display mounting brackets are quite heavy, which increases the difficulty of transportation and installation.
The installation frame, which uses carbon fiber tubes and a cross-shaped structure, enables modular installation through carbon fiber tubes and connecting devices. Combined with a hoisting locking mechanism and a grid plate to adjust the light transmittance, it forms a lightweight and stable installation structure.
It significantly reduces the weight of the mounting bracket, improves the stability and reliability of the screen, reduces the difficulty of installation, and enhances the flexibility and diversity of display effects.
Smart Images

Figure CN223842572U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of LED display technology, and in particular to a mounting frame and a carbon fiber LED display screen. Background Technology
[0002] LED displays, widely used in outdoor advertising, stage backdrops, stadiums and other scenarios, are typically composed of multiple display modules spliced together.
[0003] To ensure the overall stability and display effect of the LED display screen, the display modules need to be securely mounted on the mounting bracket. Traditional LED display mounting brackets are usually connected to the building structure or ground by bolts or other fasteners, and are mostly made of metal materials, such as aluminum alloy or stainless steel. While these materials have high strength and durability, their weight increases the overall weight of the display screen, thus increasing the difficulty of transportation and installation. 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 mounting back frame and a carbon fiber LED display screen, which solves the technical problem that the existing mounting frames are relatively bulky.
[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 mounting back frame for use in LED displays, installed on the back of the display module. It includes a first carbon fiber tube and a second carbon fiber tube arranged longitudinally. The two first carbon fiber tubes are connected together by a fixed crossbar. The second carbon fiber tube is located behind the first carbon fiber tube and is connected to the fixed crossbar by a movable rod. The front side of the fixed crossbar is provided with a back frame docking lock for locking the display module. The fixed crossbar, the movable rod and the back frame docking lock are connected together to form a cross-shaped structure. Both the upper and lower ends of the first carbon fiber tube are provided with connecting devices for detachably connecting to the display module.
[0009] The upper and lower ends of the second carbon fiber tube are provided with mating threads, and the second carbon fiber tubes of adjacent mounting frames are connected together by connecting sleeve threads.
[0010] Optionally, two cross-shaped structures are provided.
[0011] Optionally, one of the first carbon fiber tubes is rotatably provided with an overlapping crossbar, and the other first carbon fiber tube is provided with a mounting ear, on which an overlapping lock is installed. The front and rear sides of the free end of the overlapping crossbar are provided with symmetrical overlapping engagement lock grooves adapted to the overlapping lock.
[0012] Optionally, the back frame docking lock includes a docking lock housing, a docking lock cylinder, and a docking handle. The docking lock housing is provided with a sliding window. The docking lock cylinder is slidably installed in the docking lock housing, and its I-shaped locking protrusion extends forward from the docking lock housing. The docking handle is perpendicularly inserted and fixed to the docking lock cylinder and is located in the sliding window.
[0013] Optionally, the fixed crossbar and the movable bar are rotatably connected together and locked in place by left and right movable locks.
[0014] Optionally, one end of the connecting device is connected to the first carbon fiber tube, and the other end is provided with a mounting groove to provide space for connecting the display module.
[0015] Secondly, this utility model embodiment provides a carbon fiber LED display screen, which includes, from front to back, a display module, a carbon fiber housing, and the aforementioned mounting frame.
[0016] The upper and lower locking units are respectively provided at the top and bottom ends of the back of the carbon fiber box, and the middle part is provided with a back frame lock hole at the position opposite to the docking lock of the back frame.
[0017] The lower end of the upper locking unit is inserted into the mounting slot of the upper connecting device and connected together by bolts. The top end of the lower locking unit is placed in the mounting slot of the lower connecting device and connected together by bolts. The back frame docking lock extends into the back frame lock hole to lock the carbon fiber box body to the mounting back frame.
[0018] Optionally, the display module includes multiple grid display units, and a grid plate is also installed between the display module and the carbon fiber housing.
[0019] (III) Beneficial Effects
[0020] The beneficial effects of this utility model are:
[0021] 1. The present invention relates to a mounting back frame and a carbon fiber LED display screen. The mounting back frame adopts a first carbon fiber tube, a second carbon fiber tube, and a cross-shaped structure. The two first carbon fiber tubes and one second carbon fiber tube are located at the three ends of the cross-shaped structure. The mounting back frame is modularly and integrally installed on the back of the display module. The mounting back frame greatly reduces its weight while ensuring sufficient structural strength and stability, thus solving the technical problem of the existing mounting frames being relatively bulky.
[0022] 2. The modular back support frame is detachable, allowing for flexible installation based on the specific needs of the installation environment. The two second carbon fiber tubes of the adjacent back supports are connected together, providing robust connection, support, and protection for the adjacent carbon fiber LED displays. The back support frame is lightweight and solves the problem of insufficient compressive strength in carbon fiber cabinet splicing facade screens.
[0023] 3. By setting up a grid panel, the position of the grid panel can be adjusted according to the actual display needs, thereby changing the light transmittance of the grid display unit and resulting in a better and more diverse display effect.
[0024] 4. The upper and lower locking units of the hoisting locking mechanism are installed on the upper and lower ends of the back of the housing frame, respectively. The left and right locking units of the arc locking mechanism are installed on the left and right sides of the back of the carbon fiber housing frame, respectively. Two adjacent carbon fiber housings can be quickly spliced together, and the splicing arc in the horizontal direction can be changed. The right-angle positions of two or four adjacent carbon fiber housings are connected by the back connecting lock, resulting in better stability and flatness of the screen.
[0025] 5. The use of carbon fiber housing, first carbon fiber tube and second carbon fiber tube significantly reduces the weight of the screen and makes the overall structure of the screen more stable and reliable.
[0026] 6. The installation back frame is set up in an integrated modular manner, and the second carbon fiber tubes of adjacent upper and lower parts are connected by connecting sleeve threads. The first carbon fiber tubes of the installation back frame of adjacent boxes are connected by overlapping crossbars, so that the first carbon fiber tubes and second carbon fiber tubes of all the installation back frames on the LED screen are combined into a grid-like installation structure, which ensures the stability of the connection of each display module in the longitudinal and lateral directions, greatly improves the stability and reliability of the screen, and has better compressive strength. Attached Figure Description
[0027] Figure 1 This is a three-dimensional schematic diagram of the mounting back frame of Embodiment 1 of the present invention, which is a mounting back frame and a carbon fiber LED display screen.
[0028] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0029] Figure 3 This is a schematic diagram of two overlapping methods of the overlapping crossbar in Embodiment 1 of the present invention, which is a mounting frame and a carbon fiber LED display screen.
[0030] Figure 4 This is one of the perspective views of a carbon fiber LED display screen according to Embodiment 2 of the present invention, which is a mounting frame and a carbon fiber LED display screen.
[0031] Figure 5 This is a second perspective view of a carbon fiber LED display screen, which is an embodiment 2 of the present invention, of a mounting frame and a carbon fiber LED display screen.
[0032] Figure 6 This is an exploded view of the carbon fiber LED display screen in Embodiment 2 of the present invention, which includes a mounting frame and a carbon fiber LED display screen.
[0033] Figure 7 This is a schematic diagram of the carbon fiber housing structure of Embodiment 2 of the present invention, which includes a mounting frame and a carbon fiber LED display screen.
[0034] Figure 8 This is a three-dimensional schematic diagram of the grille plate in Embodiment 2 of the present invention, which is a mounting frame and a carbon fiber LED display screen.
[0035] Figure 9 This is a three-dimensional schematic diagram of a grid display unit according to Embodiment 2 of the present invention, which includes a mounting frame and a carbon fiber LED display screen.
[0036] [Explanation of Labels in the Attached Image]
[0037] 1. Grille display unit; 11. Connector; 12. Ring buckle; 13. Front mounting magnet; 14. Sealing ring;
[0038] 2. Grating plate; 21. Clearance hole; 22. Hollowed-out groove;
[0039] 3. Carbon fiber enclosure;
[0040] 31. Lifting and locking mechanism; 311. Upper locking unit; 3111. First connecting part; 312. Lower locking unit; 3121. Second connecting part; 32. Arc locking mechanism; 321. Left locking unit; 322. Right locking unit; 33. Back connecting lock; 34. Box frame; 341. First box handle; 342. Second box handle; 343. Installation area; 3431. Plug-in through hole; 3432. Box lock hole; 344. Back frame lock hole; 345. Locking pin;
[0041] 4. Control box; 41. Quick-release lock;
[0042] 5. Install the back frame; 51. First carbon fiber tube; 511. Connecting device; 5110. Mounting slot; 52. Second carbon fiber tube; 521. Butt thread; 53. Fixed crossbar; 54. Overlapping crossbar; 541. Overlapping locking groove; 55. Movable rod; 56. Back frame docking lock; 561. Docking handle; 57. Overlapping lock; 58. Left and right movable lock. Detailed Implementation
[0043] To better explain the present invention for easy understanding, the present invention will be described in detail below in conjunction with the accompanying drawings through specific embodiments. Herein, the orientation terms such as "upper" and "lower" mentioned herein refer to the orientation of Figure 6 , with the direction where the grille display unit 1 is located as the "front", the side where the mounting back frame 5 is installed as the "back", the upper side of Figure 6 as "upper", and the lower side of Figure 6 as "lower".
[0044] An installation back frame and a carbon fiber LED display screen proposed in an embodiment of the present utility model. The installation back frame includes a first carbon fiber tube and a second carbon fiber tube arranged longitudinally. Two first carbon fiber tubes are connected together by a fixed cross bar. The second carbon fiber tube is located behind the first carbon fiber tube and is connected to the fixed cross bar by a movable rod. A back frame docking lock for locking the display module is provided on the front side of the fixed cross bar. The fixed cross bar, the movable rod, and the back frame docking lock are connected together to form a cross-shaped structure. Connecting devices are provided at both the upper and lower ends of the first carbon fiber tube for detachably connecting to the display module; docking threads are provided at both the upper and lower ends of the second carbon fiber tube. The second carbon fiber tubes of the upper and lower adjacent installation back frames are threadedly connected together by a connecting sleeve; during splicing, the second carbon fiber tubes of the upper and lower adjacent installation back frames of the display module are threadedly connected together by a connecting sleeve to provide support and protection. Compared with the prior art, the installation back frame adopts the first carbon fiber tube and the second carbon fiber tube, which greatly reduces its weight while ensuring that the installation back frame has sufficient structural strength and stability, and solves the technical problem that the existing installation frame is relatively heavy.
[0045] To better understand the above technical solution, the exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough and clear understanding of the present utility model and to fully convey the scope of the present utility model to those skilled in the art.
[0046] Embodiment 1:
[0047] Refer to Figures 1 to 4This embodiment 1 provides a mounting frame. The mounting frame 5 includes a first carbon fiber tube 51 and a second carbon fiber tube 52 arranged longitudinally in parallel. The two first carbon fiber tubes 51 are connected together by two fixed crossbars 53. The second carbon fiber tube 52 is connected to the rear side of the fixed crossbars 53. The front side of the fixed crossbars 53 is provided with a mounting frame docking lock 56 for locking the carbon fiber housing 3 (described later). Therefore, a cross-shaped connection structure is formed between the first carbon fiber tubes 51 and the second carbon fiber tubes 52, and there are two cross-shaped structures, making the mounting frame 5 an independent and stable whole. The second carbon fiber tube 52 is located behind the two first carbon fiber tubes 51, and the line connecting the three is an isosceles triangle. Therefore, the structure of the mounting frame 5 is more stable and the force is more balanced. Both the upper and lower ends of the first carbon fiber tubes 51 are provided with connecting devices 511 for detachably connecting to the lifting and locking mechanism 31 of the carbon fiber housing 3.
[0048] Furthermore, the two sets of connecting devices 511, distributed vertically, are perpendicular to the first connecting part 3111, the second connecting part 3121, and the first carbon fiber tube 51. The connecting device 511 has a drum-shaped cross-section, with one set of opposite sides parallel to each other and the other set of opposite sides being arc-shaped. A mounting groove 5110 is located at one end of one of the arc-shaped sides, and an insertion hole is provided at the other end of the arc-shaped side. The first connecting part 3111 and the second connecting part 3121 are inserted into the mounting grooves 5110 of the corresponding connecting devices 511 and connected together with bolts. The upper and lower ends of the first carbon fiber tube 51 are inserted into the insertion holes of the corresponding connecting devices 511 and connected together with bolts. The connection device 511 significantly reduces the difficulty of connecting the back support 5 and the carbon fiber housing 3, and the contact area at the connection point is larger, resulting in a more stable connection.
[0049] See Figure 2 The back frame docking lock 56 includes a docking lock housing, a docking lock cylinder, and a docking handle 561. The docking lock housing is provided with a sliding window. The docking lock cylinder is slidably installed in the docking lock housing, and its straight locking protrusion extends out of the docking lock housing for locking and engaging with the back frame lock hole 344 of the carbon fiber housing 3. The docking handle 561 is vertically inserted and fixed to the docking lock cylinder and extends out of the sliding window. When the docking handle 561 rotates, it can only move within the range of the sliding window.
[0050] By rotating the docking handle 561, the docking lock cylinder is rotated, causing the I-shaped lock protrusion to rotate in the back frame lock hole 344, releasing the locking effect of the back frame docking lock 56 on the carbon fiber box 3. At the same time, the connection between the upper connecting device 511 and the first connecting part 3111 is released, and the connection between the lower connecting device 511 and the second connecting part 3121 is released. The back support 5 can then be quickly removed from the box frame 34. Conversely, the back support 5 can be quickly installed on the back of the box frame 34. The operation is convenient and quick.
[0051] See Figure 1 and Figure 2 As a feasible solution, the front side of the second carbon fiber tube 52 is connected to a movable rod 55. The movable rod 55 is rotatably engaged with the fixed crossbar 53 and locked together by left and right movable locks 58. Therefore, the relative position of the second carbon fiber tube 52 can be changed according to the actual installation situation, making it more flexible to use.
[0052] See Figure 1 Both ends of the second carbon fiber tube 52 are provided with mating threads 521. The mounting frame 5 also includes a connecting sleeve with threads at both ends for connecting two adjacent second carbon fiber tubes 52, so that all the mounting frames 5 are connected together in the longitudinal direction to form a support unit.
[0053] See Figures 1 to 3 Furthermore, two first carbon fiber tubes 51 are provided with overlapping crossbars 54 on the lower side of the fixed crossbar 53. One end of the overlapping crossbar 54 is rotatably connected to one of the first carbon fiber tubes 51, and the other end is symmetrically provided with overlapping locking grooves 541 on both the front and rear sides, so that the overlapping crossbar 54 can overlap and lock with another first carbon fiber tube 51 in the same mounting frame 5, and can also overlap and lock with a first carbon fiber tube 51 of another mounting frame 5. Figure 3 As shown, the solid line indicates that the overlapping crossbar 54 connects two first carbon fiber tubes 51 of the same mounting frame 5, while the dashed line indicates that the overlapping crossbar 54 connects the first carbon fiber tubes 51 of adjacent mounting frames 5. The overlapping locking groove 541 is a composite groove, including a U-shaped groove and a straight groove. The U-shaped groove is formed by the inward indentation of the outer wall of the overlapping crossbar 54, and the straight groove is located above the U-shaped groove and extends through the U-shaped groove. The first carbon fiber tube 51 is provided with mounting ears that fit the overlapping locking groove 541. After the overlapping locking groove 541 of the overlapping crossbar 54 is installed in place with the mounting ears, it is locked and fixed by the overlapping lock 57 to prevent the overlapping crossbar 54 from moving left and right.
[0054] The adjacent second carbon fiber tubes 52 are connected by a connecting sleeve thread. A fixing crossbar 53 connects two first carbon fiber housings 3 within the same mounting back frame 5. An overlapping crossbar 54 connects the first carbon fiber tubes 51 of two adjacent mounting back frames 5, thus uniting all the first carbon fiber tubes 51 and second carbon fiber tubes 52 of the mounting back frames 5 into a mesh-like integrated mounting structure. This ensures the stability of the connection between each display module in the longitudinal and lateral directions, significantly improving the stability and reliability of the screen. Therefore, the mounting back frame 5 of this application has the advantages of being lightweight, highly stable, and easy to assemble and disassemble, reducing the difficulty of screen installation.
[0055] Example 2:
[0056] See Figures 4 to 5 Based on Embodiment 1, Embodiment 2 provides a carbon fiber LED display screen, including a display module, a carbon fiber housing 3, a control box 4, and a mounting bracket 5. The display module is detachably mounted on the front of the carbon fiber housing 3, the control box 4 is detachably mounted on the center of the back of the carbon fiber housing 3 and is electrically connected to the display module, and the mounting bracket 5 is detachably mounted on the back of the carbon fiber housing 3. Multiple carbon fiber LED displays are spliced together to form a large LED screen.
[0057] See Figure 4 and Figure 7 In some feasible solutions, the hoisting locking mechanism 31 includes an upper locking unit 311 and a lower locking unit 312, which are installed at the upper and lower ends of the carbon fiber housing 3 respectively. The lower end of the upper locking unit 311 extends downward to form a first connecting part 3111, which is detachably connected to the upper connecting device 511. The upper end of the lower locking unit 312 is provided with a second connecting part 3121, which is connected to the lower connecting device 511.
[0058] The ends of the upper locking unit 311 and the lower locking unit 312 are used as one of the connection points for mounting the back frame 5 and connected by the connecting device 511. Therefore, it is not necessary to change the original structure of the cabinet frame 34, reducing manufacturing costs and making connection and disassembly operations more convenient. Since the carbon fiber cabinet 3 is provided with the first connecting part 3111, the second connecting part 3121 and the back frame locking hole 344, the mounting back frame 5 and the display module have six connection points in two groups, upper and lower. Moreover, the three connection points in each group are not on the same straight line, the force is distributed, and the connection is more stable and reliable.
[0059] See Figure 4 and Figure 9The display module includes multiple grid display units 1. Each grid display unit 1 has a front-mounting magnet 13 and an annular clip 12 on its back. One end of the annular clip 12 is rotatably connected to a mounting base on the back of the grid display unit 1, and the other end encircles the longitudinal beam of the carbon fiber housing 3 and is secured to a locking seat on the grid display unit 1, thus fixing the carbon fiber housing 3 to the grid display unit 1. The front-mounting magnet 13 and the annular clip 12 make the installation of the grid display unit 1 faster, more secure, and less prone to detachment.
[0060] See Figure 9 The top and bottom ends of the back of the grille display unit 1 are provided with connectors 11, and sealing rings 14 are installed around the connectors 11 to prevent rainwater from entering the interior of the display module.
[0061] See Figure 8 In actual use, a grille plate 2 is also provided between the display module and the carbon fiber housing 3. The grille plate 2 has longitudinally arranged hollow slots 22 that are adapted to the grille display unit 1. By finely adjusting the position of the grille plate 2 in the left and right directions, the hollow slots 22 can correspond one-to-one with the hollow parts of the grille display unit 1 or be staggered, so that the LED display can be used as a grille screen or a regular display, suitable for more application scenarios. The grille plate 2 is also provided with clearance holes 21. These clearance holes 21 are located at corresponding positions of the mounting bases and locking seats of the front-mounted magnets 13, annular buckles 12, etc., to avoid related structures and facilitate the movement of the grille plate 2.
[0062] The grating plate 2 is usually made of metal plate, which can be various alloy plates.
[0063] See Figure 4 and Figure 6 The carbon fiber enclosure 3 includes an enclosure frame 34. A mounting area 343 is laterally arranged in the middle of the enclosure frame 34. Quick-release locking devices 41 are provided at both ends of the control box 4. The mounting area 343 has a lock hole 3432 and a connection through hole 3431. The lock hole 3432 has a locking step that mates with the quick-release locking device 41. The control box 4 is locked in the mounting area 343 by the quick-release locking device 41. Using the quick-release locking device 41, the control box 4 can be quickly installed onto or removed from the enclosure frame 34.
[0064] See Figure 7 The box frame 34 includes multiple longitudinal beams, wherein the upper end of the longitudinal beam located on the left and right axis of symmetry is provided with a first box handle 341, and the longitudinal beams on both sides are provided with a second box handle 342, which facilitates the handling of the carbon fiber box 3.
[0065] See Figure 4 and Figure 7The carbon fiber enclosure 3 also includes a back connection lock 33, which has four connection positions. Each connection position engages with a locking pin 345 at the right angle of the adjacent enclosure, allowing the adjacent enclosures to be connected together. The back connection lock 33 can also be installed on the left and right sides of the control box 4, facilitating the connection between the middle of two adjacent enclosures and improving flatness.
[0066] 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.
[0067] 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.
[0068] 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.
[0069] 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.
[0070] 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 mounting bracket for LED displays, characterized in that: Installed on the back of the display module, including a first carbon fiber tube (51) and a second carbon fiber tube (52) arranged vertically; Two first carbon fiber tubes (51) are connected together by a fixed crossbar (53). The second carbon fiber tube (52) is located behind the first carbon fiber tube (51) and is connected to the fixed crossbar (53) by a movable rod (55). The front side of the fixed crossbar (53) is provided with a back frame docking lock (56) for locking the display module. The fixed crossbar (53), the movable rod (55) and the back frame docking lock (56) are connected together to form a cross-shaped structure. Both the upper and lower ends of the first carbon fiber tube (51) are provided with connecting devices (511) for detachably connecting to the display module. The upper and lower ends of the second carbon fiber tube (52) are provided with mating threads (521) so that the second carbon fiber tubes (52) of the mounting back frame (5) of the adjacent display modules are connected together by connecting sleeve threads.
2. The mounting frame as described in claim 1, characterized in that: There are two of the cross-shaped structures.
3. The mounting frame as described in claim 2, characterized in that: One of the first carbon fiber tubes (51) is rotatably provided with an overlapping crossbar (54), and the other first carbon fiber tube (51) is provided with a mounting ear. An overlapping lock (57) is installed on the mounting ear. The front and rear sides of the free end of the overlapping crossbar (54) are provided with symmetrical overlapping matching lock grooves (541) adapted to the overlapping lock (57).
4. The mounting frame as described in claim 2, characterized in that: The back frame docking lock (56) includes a docking lock housing, a docking lock cylinder, and a docking handle (561). The docking lock housing is provided with a sliding window. The docking lock cylinder is slidably installed in the docking lock housing, and its I-shaped locking protrusion extends forward from the docking lock housing. The docking handle (561) is perpendicularly inserted and fixed to the docking lock cylinder and is located in the sliding window.
5. A mounting frame as described in claim 2, characterized in that: The fixed crossbar (53) and the movable bar (55) are rotatably connected together and locked in place by left and right movable locks (58).
6. A mounting frame as described in claim 1, characterized in that: One end of the connecting device (511) is connected to the first carbon fiber tube (51), and the other end is provided with an installation groove (5110) to provide space for the display module to be connected.
7. A carbon fiber LED display screen, characterized in that: From front to back, it includes a display module, a carbon fiber housing (3), and a mounting frame (5) as described in any one of claims 1 to 6; The upper and lower ends of the back of the carbon fiber box (3) are respectively provided with an upper locking unit (311) and a lower locking unit (312), and the middle part is provided with a back frame lock hole (344) at the position opposite to the back frame docking lock (56). The lower end of the upper locking unit (311) is inserted into the mounting groove (5110) of the upper connecting device (511) and connected together by bolts. The top end of the lower locking unit (312) is placed in the mounting groove (5110) of the lower connecting device (511) and connected together by bolts. The back frame docking lock (56) extends into the back frame lock hole (344) to lock the carbon fiber box (3) and the mounting back frame (5) together.
8. A carbon fiber LED display screen as described in claim 7, characterized in that: The display module includes multiple grid display units (1), and a grid plate (2) is also installed between the display module and the carbon fiber housing (3).