LED curved screen

Abstract

The utility model discloses an LED curved screen which comprises a frame, an LED module, a control box and an arc-shaped locking mechanism, and the arc-shaped locking mechanism comprises a locking assembly and an angle adjusting assembly. The angle adjusting assembly comprises an adjusting seat and an adjusting piece, the adjusting seat is arranged on one side of the frame and connected with the frame, an arc-shaped groove is formed in the adjusting seat, the first end of the adjusting piece is a sliding part, the sliding part is adjustably arranged in the arc-shaped groove in a sliding mode, and the second end of the adjusting piece is a first connecting part; the locking assembly is arranged on the other opposite side of the frame, the locking assembly is connected with the frame, and the locking assembly is connected with the first connecting part in a locking mode. The positions of the adjusting parts and the adjusting seats can be adjusted according to different installation conditions, and the angle formed by the adjacent frames can be adjusted, so that the adjacent frames are in a straight state and a bent state, and the frames can adapt to different installation conditions, for example, a plurality of frames can be connected into a plane, a concave surface, a convex surface and the like; therefore, the adaptability of the corresponding LED screen is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED screen connection, in particular to an LED curved screen. Background Art

[0002] LED screens have good energy-saving effects and longer service lives. When the lamp beads are well encapsulated and the lamps are well assembled, LED screens have good dust and water protection effects and can adapt to outdoor working environments. Therefore, they are commonly used in outdoor lamps, light boxes, and advertising screens.

[0003] In some large-scale advertising screens, the length or width dimension can reach several meters or dozens of meters. For such LED screens, it is almost impossible to directly produce and manufacture them. Usually, the method is to splice small module screens into a large screen. When the advertising plane is installed on the city streets and pedestrians watch the advertisement in front of the large screen, the distance from the person to the middle of the large screen will be less than the distance from the person to the edge of the large screen, and there is a large distance gap, which easily causes serious deformation and occasional distortion of the picture in the field of vision, seriously reducing the viewing experience of pedestrians in front of the large screen and affecting the advertisement playback. In addition, in many cases, the places where the screens are installed vary in size, with curves and straight lines, and even columnar structures, special-shaped structures, etc. The existing screen splicing methods are single, with the defect of insufficient installation adaptability. Summary of the Utility Model

[0004] In order to solve the technical problems of single screen splicing method and insufficient installation adaptability in the prior art, one of the purposes of the present utility model is to provide an LED curved screen.

[0005] One of the purposes of the present utility model is realized by adopting the following technical scheme:

[0006] An LED curved screen, the LED curved screen includes a plurality of screen units, and each screen unit includes a frame, an LED module, a control box, and an arc locking mechanism. The arc locking mechanism includes a locking component and an angle adjusting component;

[0007] The angle adjusting component includes an adjusting seat and an adjusting member. The adjusting seat is arranged on one side of the frame, the adjusting seat is connected to the frame, an arc-shaped groove is provided on the adjusting seat, the first end of the adjusting member is a sliding part, and the sliding part is slidably arranged in the arc-shaped groove in an adjustable manner. The second end of the adjusting member is a first connecting part;

[0008] The locking component is arranged on the other opposite side of the frame, the locking component is connected to the frame, and the locking component is locked and connected to the first connecting part.

[0009] Optionally, the locking assembly includes a connecting seat, a first movable rod, and a locking handle;

[0010] The connecting seat is provided with a second connecting portion, and the second connecting portion is provided with a first through hole through which the first end of the first movable rod can pass;

[0011] The first end of the first movable rod is provided with a first locking portion. The first end of the first movable rod passes through the second connecting portion, and the first locking portion is movably connected to the first connecting portion;

[0012] The locking handle is sleeved on the first movable rod, and the locking handle is threadedly connected to the first movable rod;

[0013] When the first locking portion is movably connected to the first connecting portion, rotate the locking handle to drive the first movable rod away from the first connecting portion to lock the movable connection.

[0014] Optionally, the first connecting portion is provided with a second through hole through which the first end of the first movable rod can pass;

[0015] The first end of the first movable rod passes through the first connecting portion, and the first locking portion is a pin shaft provided on the outer circumferential surface of the first end of the first movable rod;

[0016] The second end of the first movable rod is provided with a rotating portion for rotating the first movable rod;

[0017] Twist the rotating portion, and the first locking portion moves away from the position where it passes through the second through hole as it rotates.

[0018] Optionally, the locking assembly further includes a first elastic member. The first elastic member is sleeved on the first movable rod. One end of the first elastic member abuts against the second connecting portion, and the other end of the first elastic member applies an elastic thrust to the first movable rod.

[0019] Optionally, a first positioning groove is provided on one side of the first connecting portion away from the connecting seat;

[0020] The first positioning groove passes through the position where the second through hole is located;

[0021] Twist the rotating portion, and the first locking portion is screwed into the first positioning groove.

[0022] Optionally, a through groove is provided on the sliding portion along its sliding direction, and the through groove penetrates the sliding portion;

[0023] The angle adjustment assembly further includes a quick-release locking mechanism. The quick-release locking mechanism includes a quick-release head and a second movable rod;

[0024] The quick-release head is rotatably arranged at the second end of the second movable rod;

[0025] The second movable rod passes through the adjusting seat. The first end of the second movable rod passes through the through groove. A second locking portion is provided at the first end of the second movable rod, and the second locking portion is located on the side of the sliding portion away from the quick-release head.

[0026] Optionally, a plurality of second positioning grooves are provided along the edge of the through groove on the side of the sliding portion away from the quick-release head.

[0027] Optionally, a plurality of positioning holes are provided on the sliding portion along the sliding direction, and the positioning holes are arranged in one-to-one correspondence with the second positioning grooves;

[0028] The angle adjustment assembly further includes an elastic positioning member for positioning before locking. The elastic positioning member is arranged on the adjusting seat, and the elastic positioning member faces one of the positioning holes.

[0029] Optionally, a plurality of magnetic attraction grooves and at least two connecting holes are provided on the back surface of the LED module, and a first magnetic attraction block is arranged in the magnetic attraction groove;

[0030] A plurality of second magnetic attraction blocks and at least two connecting portions are provided on the front surface of the frame. The second magnetic attraction blocks are arranged in one-to-one correspondence with the first magnetic attraction blocks. The connecting portions are arranged in one-to-one correspondence with the connecting holes. Fastening members are provided on the connecting portions. The fastening members pass through the connecting portions and are fixedly connected to the connecting holes.

[0031] Optionally, the LED module includes a substrate, a lamp board and a mask. The lamp board is arranged on the front surface of the substrate, and the mask covers the front surface of the lamp board;

[0032] Insertion holes are provided on the substrate, and the magnetic attraction grooves and the connecting holes are provided on the back surface of the substrate;

[0033] A plug connector for plugging into the control box is provided on the back surface of the lamp board, and the plug connector extends into the insertion hole.

[0034] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0035] In the present utility model, the angle adjustment assembly and the locking assembly are respectively connected to two adjacent frames. The angle adjustment assembly is connected to the corresponding frame through an adjustment seat. The sliding part of the adjusting member is slidably arranged in the arc-shaped groove in the adjustment seat. At the same time, the adjusting member is also connected to the locking assembly through a first connecting portion. That is, two adjacent frames are connected through the adjustment seat, the angle adjustment assembly, and the locking assembly. By adjusting the position of the adjusting member in the arc-shaped groove, the angle between the adjusting member and the corresponding frame can be changed, thereby adjusting the angle between two adjacent frames. In this way, multiple sets of adjacent frames can be connected through multiple sets of arc-shaped locking mechanisms, and the positions of the adjusting member and the adjustment seat can be adjusted according to different installation conditions, and the angle formed by the adjacent frames can be adjusted, so that the adjacent frames are in a straight state or a curved state, enabling the frames to adapt to different installation conditions. For example, multiple frames can be connected into a plane, a concave surface, a convex surface, a cylindrical surface, or other special-shaped surfaces, so that the LED screen has more shape changes, thereby improving the adaptability of the corresponding LED screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 FIG. is a schematic structural diagram of the LED curved screen of the present utility model provided on a frame;

[0037] Figure 2 FIG. is a schematic structural diagram of the arc-shaped locking mechanism in the LED curved screen of the present utility model;

[0038] Figure 3 FIG. is an exploded schematic diagram of the arc-shaped locking mechanism in the LED curved screen of the present utility model;

[0039] Figure 4 FIG. is a schematic structural diagram of the adjustment seat in the LED curved screen of the present utility model;

[0040] Figure 5 FIG. is a schematic structural diagram of the straight connection of the arc-shaped locking mechanism in the LED curved screen of the present utility model;

[0041] Figure 6 FIG. is a schematic structural diagram of the concave connection of the arc-shaped locking mechanism in the LED curved screen of the present utility model;

[0042] Figure 7 FIG. is a schematic structural diagram of the convex connection of the arc-shaped locking mechanism in the LED curved screen of the present utility model;

[0043] Figure 8 FIG. is a schematic structural diagram of the assembly of the LED module in the LED curved screen of the present utility model;

[0044] Figure 9 FIG. is a schematic structural diagram of the LED module in the LED curved screen of the present utility model;

[0045] Figure 10This is an exploded schematic diagram of the LED module in the LED curved screen of the present invention;

[0046] Figure 11 It is a schematic diagram of the structure of the light board in the LED curved screen of the present utility model.

[0047] Description of the accompanying drawings:

[0048] 1. Locking assembly; 11. Connecting seat; 111. Second connecting part; 112. First through hole; 12. First movable rod; 121. First locking part; 122. Rotating part; 13. Locking handle; 14. First elastic member; 15. Limiting plate;

[0049] 2. Angle adjustment assembly; 21. Adjustment seat; 211. Arc groove; 22. Adjustment member; 221. Sliding portion; 2211. Through groove; 2212. Second positioning groove; 2213. Positioning hole; 222. First connecting portion; 2221. Second through hole; 2222. First positioning groove; 23. Quick release locking mechanism; 231. Quick release head; 232. Second movable rod; 2321. Second locking portion; 233. Washer; 234. Second elastic member; 235. Nut; 24. Elastic positioning member;

[0050] 3. Frame; 31. Second magnetic block; 32. Connecting part; 33. Pin hole; 34. Stud;

[0051] 4. LED module; 41. substrate; 411. magnetic suction groove; 412. connection hole; 413. plug hole; 414. positioning pin; 42. lamp board; 421. plug connector; 422. elastic conductive column; 43. mask; 44. first magnetic suction block; 45. handle;

[0052] 5. Control box. DETAILED DESCRIPTION

[0053] The following will be combined with the attached examples of the present application Figure 1 To Attachment Figure 11 , the technical solutions in the embodiments of the present application are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0054] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0055] In addition, the descriptions involving "first", "second", etc. in this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or inability to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0056] As Figures 1-4 shown, an LED curved screen includes a plurality of screen units. Each screen unit includes a frame 3, an LED module 4, a control box 5, a control main board, a power supply, and an arc locking mechanism. The power supply and the control main board are arranged inside the control box 5. The control box 5 is arranged on the back of the frame 3, and the LED module 4 is arranged on the front of the frame 3.

[0057] The arc locking mechanism is used to connect adjacent frames 3. The arc locking mechanism includes a locking component 1 and an angle adjustment component 2. The angle adjustment component 2 includes an adjustment seat 21 and an adjustment member 22. The adjustment seat 21 is arranged on one side of the frame 3. The adjustment seat 21 is connected to the frame 3. An arc groove 211 is provided on the adjustment seat 21. The first end of the adjustment member 22 is a sliding portion 221, and the sliding portion 221 is slidably arranged in the arc groove 211 in an adjustable manner. The second end of the adjustment member 22 is a first connection portion 222. The locking component 1 is arranged on the other opposite side of the frame 3. The locking component 1 is connected to the frame 3, and the locking component 1 is locked and connected to the first connection portion 222.

[0058] The angle adjustment component 2 and the locking component 1 are respectively connected to two adjacent frames 3. When the angle adjustment component 2 is connected to the corresponding frame 3 through the adjustment seat 21, the sliding portion 221 of the adjustment member 22 is slidably arranged in the arc groove 211 in the adjustment seat 21. At the same time, the adjustment member 22 is also connected to the locking component 1 through the first connection portion 222. That is, two adjacent frames 3 are connected through the adjustment seat 21, the angle adjustment component 2, and the locking component 1. By adjusting the position of the adjustment member 22 in the arc groove 211, the angle between the adjustment member 22 and the corresponding frame 3 can be changed, thereby adjusting the angle between two adjacent frames 3. In this way, multiple groups of adjacent frames 3 can be connected through multiple groups of arc locking mechanisms, and the positions of the adjustment member 22 and the adjustment seat 21 can be adjusted according to different installation conditions, and the angle formed by the adjacent frames 3 can be adjusted, so that the adjacent frames 3 are in a straight state or a curved state, enabling the frame 3 to adapt to different installation conditions. For example, multiple frames 3 can be connected into a plane (as Figure 5 shown), a concave surface (as Figure 6 shown), a convex surface (as Figure 7As shown, a cylindrical surface or other special-shaped surface is provided, so that the LED curved screen has more shape variations, thereby improving the assembly adaptability of the corresponding LED curved screen.

[0059] In some embodiments of the locking assembly 1, such as Figure 2 , Figure 3 As shown, the locking assembly 1 includes a connecting seat 11, a first movable rod 12, and a locking handle 13. The connecting seat 11 is provided with a second connecting portion 111, and the second connecting portion 111 is provided with a first through hole 112 through which the first end of the first movable rod 12 can pass.

[0060] The first end of the first movable rod 12 is provided with a first locking portion 121. The first end of the first movable rod 12 passes through the second connecting portion 111, and the first locking portion 121 is movably connected to the first connecting portion 222. The locking handle 13 is sleeved on the first movable rod 12, and the locking handle 13 is threadedly connected to the first movable rod 12. When the first locking portion 121 is movably connected to the first connecting portion 222, by rotating the locking handle 13, the first movable rod 12 is driven to move away from the first connecting portion 222 to lock the movable connection.

[0061] After the first movable rod 12 passes through the first through hole 112 on the second connecting portion 111, the first movable rod 12 is movably connected to the first connecting portion 222 through the first locking portion 121. By rotating the locking handle 13, for example, rotating the locking handle 13 in a tightened manner, the locking handle 13 will drive the first movable rod 12 to move in a direction away from the first connecting portion 222, thereby locking the movable connection and preventing the connection from disengaging.

[0062] For the first end of the first movable rod 12 to pass through the second connecting portion 111, that is, the first end of the first movable rod 12 passes through the first through hole 112. Specifically, in addition to the main hole area that can allow the main body portion of the first movable rod 12 to pass through, the first through hole 112 also includes sub-hole areas located on one side or both sides of the main hole. The sub-hole areas allow the first locking portion 121 to pass through. More specifically, the main hole area is adapted to the shape of the main body portion of the first movable rod 12, and the sub-hole area is adapted to the shape of the first locking portion 121.

[0063] For the aforementioned movable connection, the first locking portion 121 can be a barb. When the first locking portion 121 is hooked to the first connecting portion 222, after being locked by the locking handle 13, the first movable rod 12 can be tightened, and the first connecting portion 222 can be pressed against the second connecting portion 111 to prevent the hooking from falling off.

[0064] In some other embodiments of the movable connection, such as Figure 2 , Figure 3As shown, a second through-hole 2221 through which the first end of the first movable rod 12 can pass is provided on the first connecting portion 222. The first end of the first movable rod 12 passes through the first connecting portion 222, and the first locking portion 121 is a pin shaft provided on the outer circumferential surface of the first end of the first movable rod 12. A rotating portion 122 for rotating the first movable rod 12 is provided at the second end of the first movable rod 12. When the rotating portion 122 is twisted, the first locking portion 121 moves away from the position it is in when passing through the second through-hole 2221 as it rotates. The first locking portion 121 moves with the first end of the first movable rod 12 and passes through the second through-hole 2221. After that, the first movable rod 12 is rotated by the rotating portion 122 so that the first locking portion 121 avoids the position it is in when passing through the second through-hole 2221, that is, the first locking portion 121 rotates towards the solid portion of the first connecting portion 222. In this way, when the locking handle 13 works, the first locking portion 121 can directly abut against the first connecting portion 222, thereby pressing the first connecting portion 222 against the second connecting portion 111.

[0065] For the first end of the first movable rod 12 to pass through the first connecting portion 222, that is, the first end of the first movable rod 12 passes through the second through-hole 2221. Specifically, in addition to the main hole area through which the main body portion of the first movable rod 12 can pass, the second through-hole 2221 further includes auxiliary hole areas located on one or both sides of the main hole. The auxiliary hole areas are for the first locking portion 121 to pass through. More specifically, the main hole area is adapted to the shape of the main body portion of the first movable rod 12, and the auxiliary hole areas are adapted to the shape of the first locking portion 121.

[0066] Furthermore, as Figure 2 、 Figure 3 shown, the locking assembly 1 further includes a first elastic member 14. The first elastic member 14 is sleeved on the first movable rod 12. One end of the first elastic member 14 abuts against the second connecting portion 111, and the other end of the first elastic member 14 applies an elastic thrust to the first movable rod 12. The first elastic member 14 is located on the side of the second connecting portion 111 away from the first connecting portion 222. The first elastic member 14 continuously applies an elastic force to the first movable rod 12 or to the second connecting portion 111, increasing the pressure of the first locking portion 121 on the first connecting portion 222 and increasing the moving resistance of the first locking portion 121. When the locking handle 13 is rotated, the rotation of the first movable rod 12 can be avoided or reduced.

[0067] Even further, as Figure 2 、 Figure 3As shown, on the side of the first connecting portion 222 away from the connecting base 11, there is a first positioning groove 2222. The first positioning groove 2222 passes through the position where the second through hole 2221 is located. For the torsion rotation portion 122, the first locking portion 121 is screwed into the first positioning groove 2222. At the same time, under the action of the first elastic member 14, the first locking portion 121 can stably stay in the first positioning groove 2222, so that when the locking handle 13 is rotated, the first movable rod 12 or the first locking portion 121 is prevented from rotating, improving the convenience of locking the first movable rod 12.

[0068] In a further embodiment of some locking assemblies 1, such as Figure 2 , Figure 3 As shown, the locking assembly 1 further includes a limiting plate 15. The limiting plate 15 is provided with a third through hole through which the middle part of the first movable rod 12 can pass. The limiting plate 15 is arranged on the side of the second connecting portion 111 away from the adjusting member 22. Before the first locking portion 121 is assembled on the first movable rod 12, the first movable rod 12 is first passed through the third through hole so that the middle part of the first movable rod 12 stays at the third through hole, and then the first locking portion 121 is assembled on the first end of the first movable rod 12. In this way, the main body of the first movable rod 12 itself can move along the third through hole, but the first locking portion 121 cannot pass through the third through hole. Thus, the limiting plate 15 can limit the first movable rod 12 from disengaging and falling off.

[0069] In an embodiment of some angle adjusting assemblies 2, such as Figure 2 , Figure 3 As shown, the sliding portion 221 is provided with a through groove 2211 arranged along its sliding direction. The through groove 2211 penetrates the sliding portion 221, that is, the through groove 2211 is a concentric arc groove.

[0070] The angle adjusting assembly 2 further includes a quick-release locking mechanism 23. The quick-release locking mechanism 23 includes a quick-release head 231 and a second movable rod 232.

[0071] The quick-release head 231 is rotatably arranged at the second end of the second movable rod 232. The second movable rod 232 passes through the adjusting seat 21. The first end of the second movable rod 232 passes through the through groove 2211. The first end of the second movable rod 232 is provided with a second locking portion 2321. The second locking portion 2321 is located on the side of the sliding portion 221 away from the quick-release head 231.

[0072] The first end of the second movable rod 232 passes through the through groove 2211 until the second locking portion 2321 crosses the sliding portion 221. Then the second movable rod 232 is rotated so that the second locking portion 2321 rotates away from the through groove 2211. Finally, the quick-release head 231 is rotated so that the second movable rod 232 moves outwards, and the second locking portion 2321 presses the sliding portion 221, thereby locking the sliding portion 221.

[0073] Further, as Figure 3 shown, on one side of the sliding part 221 away from the quick release head 231, a plurality of second positioning grooves 2212 are provided along the edge of the through groove 2211. After the second locking part 2321 is turned into the second positioning groove 2212, the resistance to movement or sliding between the second locking part 2321 and the sliding part 221 is increased, and the locking effect is improved.

[0074] Specifically, the second positioning grooves 2212 are arranged at equal distances. The specific equal distance can be an equal straight-line distance or an equal angular distance. For example, Figure 6 shown, the angular interval between adjacent second positioning grooves 2212 is 3°.

[0075] The specific structure of the second locking part 2321 can also be an upper pin shaft. The first elastic member 14 and the second elastic member 234 are preferably spiral springs.

[0076] Even further, as Figure 2 、 Figure 3 shown, a plurality of positioning holes 2213 arranged along the sliding direction are provided on the sliding part 221, and the positioning holes 2213 are arranged in one-to-one correspondence with the second positioning grooves 2212. The angle adjustment assembly 2 further includes an elastic positioning member 24 for positioning before locking. The elastic positioning member 24 is arranged on the adjustment seat 21, and the elastic positioning member 24 faces one of the positioning holes 2213. The assembly process includes adjusting the position of the adjusting member 22, temporarily fixing the adjusting member 22, and locking the adjusting member 22 by using the quick release head 231. The ways of temporarily fixing the adjusting member 22 include manual temporary fixing or temporarily clamping with the help of tools. These ways may all cause movement and are not very convenient. The embodiment of the present invention provides a positioning machine structure and a plurality of positioning holes 2213, wherein the plurality of positioning holes 2213 are distributed along the sliding direction, specifically on concentric circles along the sliding direction. The elastic positioning member 24 is arranged on the adjustment seat 21 and faces the positioning hole 2213. In this way, after rotating a fixed distance or a fixed angle, the elastic positioning member 24 can be positioned and matched with the positioning hole 2213 at the corresponding position, and the sliding part 221 can be temporarily positioned, improving the convenience of angle adjustment.

[0077] The elastic positioning member 24 can specifically be a ball screw.

[0078] In a further embodiment of some angle adjustment assemblies 2, as Figure 2 、 Figure 3As shown, a nut groove is provided on one side of the adjusting seat 21 opposite to the quick-release head 231. The second movable rod 232 passes through the adjusting seat 21 and extends into the nut groove. The quick-release locking mechanism 23 further includes a gasket 233, a second elastic member 234, and a nut 235. The nut 235 is disposed in the nut groove and is threadedly connected to the second movable rod 232. The second elastic member 234 is disposed in the nut groove and sleeved on the second movable rod 232. The gasket 233 is sleeved on the second movable rod 232 and is located between the quick-release head 231 and the adjusting seat 21. An arc-shaped groove is provided on one side of the gasket 233 facing the quick-release head 231. The nut 235 restricts the position of the second movable rod 232 to prevent the second movable rod 232 from falling off. The second elastic member 234 can enable the second movable rod 232 to continuously receive an elastic force pointing to the quick-release head 231, increasing the moving resistance or rotational resistance of the second locking portion 2321 on the sliding portion 221. The gasket 233 is a protective structure for the adjusting seat 21 and increases the distance from the quick-release head 231 to the adjusting seat 21, increasing the range of rotational swing of the quick-release head 231.

[0079] In some embodiments of the LED module 4, a plurality of magnetic attraction grooves 411 and at least two connection holes 412 are provided on the back surface of the LED module 4. A first magnetic attraction block 44 is provided in the magnetic attraction groove 411. A plurality of second magnetic attraction blocks 31 and at least two connection portions 32 are provided on the front surface of the frame 3. The second magnetic attraction blocks 31 are arranged in one-to-one correspondence with the first magnetic attraction blocks 44, and the connection portions 32 are arranged in one-to-one correspondence with the connection holes 412. A fastening member (not shown in the figure) is provided on the connection portion 32. The fastening member passes through the connection portion 32 and is fixedly connected to the connection hole 412. In the present utility model, the magnetic attraction groove 411 is provided on the back surface of the LED module 4, and the first magnetic attraction block 44 is placed or installed through the magnetic attraction groove 411. At the same time, at least two connection holes 412 are also provided on the back surface of the LED module 4. The second magnetic attraction blocks 31 and the connection portions 32 are provided on the back surface of the frame 3. Through the magnetic attraction between the second magnetic attraction blocks 31 and the first magnetic attraction blocks 44, the LED module 4 is magnetically adsorbed on the frame 3. And on the basis of the magnetic adsorption, a fastening member is further provided on the connection portion 32 to strengthen the fixation of the LED module 4 through the fastening member. In this way, by combining magnetic attraction and fastening, during disassembly, the LED module 4 can be kept fixed by means of magnetic attraction to avoid falling during disassembly. During installation, the LED module 4 can be magnetically adsorbed and fixed on the frame 3 without manual positioning, improving the convenience of installation.

[0080] In some further embodiments of the LED module 4, such as Figure 9 、 Figure 10As shown, the LED module 4 includes a substrate 41, a lamp board 42, and a mask 43. The lamp board 42 is disposed on the front surface of the substrate 41, and the mask 43 covers the front surface of the lamp board 42. The back surface of the substrate 41 is provided with the aforementioned magnetic attraction groove 411 and connection holes 412. The substrate 41 has a relatively high-strength structure. The magnetic attraction groove 411 and the connection holes 412 are provided on the substrate 41, which is beneficial to improving the stability of the magnetic attraction of the first magnetic attraction block 44 and the strength of the connection holes 412.

[0081] Further, as Figure 9 , Figure 10 shown, the substrate 41 is provided with insertion holes 413. The back surface of the lamp board 42 is provided with plug connectors 421 for plugging into the control box 5, and the plug connectors 421 extend into the insertion holes 413. In this embodiment, the plug connectors 421 are provided on the back surface of the lamp board 42. In this way, the LED module 4 can be connected to the control box 5 through the plug connectors 421. By inserting and unplugging the plug connectors 421, the quick connection and disconnection of the LED module 4 and the control box 5 can be achieved quickly, thereby improving the disassembly and assembly speed of the LED module 4.

[0082] Further, as Figure 9 , Figure 10 shown, the back surface of the substrate 41 is provided with positioning pins 414. The frame 3 is provided with pin holes 33 corresponding to the positioning pins 414. When the LED module 4 is installed on the frame 3, the positioning pins 414 are embedded in the pin holes 33. After the positioning pins 414 are provided on the substrate 41, the LED module 4 can be positioned and matched with the pin holes 33 on the frame 3 through the positioning pins 414, improving the assembly accuracy of the LED module 4 and the accuracy of the disassembly and assembly of the plug connectors 421.

[0083] Further, as Figure 11 shown, the back surface of the lamp board 42 is provided with elastic conductive posts 422 for abutting against the control box 5, and the elastic conductive posts 422 extend into the insertion holes 413. The elastic conductive posts 422 abut against the control main board in the control box 5, thereby supplying power to the LED module 4 through the control main board.

[0084] In some embodiments of the LED module 4, as Figure 9 shown, the LED module 4 further includes a handle 45, and the handle 45 is disposed on the back surface of the substrate 41. The handle 45 is provided on the back surface of the LED module 4, which can improve the convenience of carrying and transporting the LED module 4. At the same time, when disassembling and assembling the LED module 4, the handle 45 can be used as a temporary auxiliary fixing structure of the LED module 4, improving the convenience of temporary fixing.

[0085] In some embodiments of the magnetic attraction connection mechanism of the LED screen, as Figure 9 shown, the magnetic attraction groove 411 is provided with first threaded holes.

[0086] The first magnetic attraction block 44 is provided with a through hole, and the through hole is opposite to the corresponding first threaded hole. The LED screen magnetic attraction connection mechanism further includes a first connecting member, and the first connecting member passes through the through hole and is connected to the first threaded hole. In this way, the first magnetic attraction block 44 can be fixed in the magnetic attraction groove 411 through the first connecting member. Specifically, the through hole can be a countersunk hole, and the first connecting member can be a countersunk screw.

[0087] In some embodiments of the LED screen magnetic attraction connection mechanism, such as Figure 8 shown, the frame 3 is provided with a stud 34, and the stud 34 is provided with a second threaded hole.

[0088] The second magnetic attraction block 31 is provided with a through hole, and the through hole is opposite to the corresponding second threaded hole. The LED screen magnetic attraction connection mechanism further includes a second connecting member, and the second connecting member passes through the through hole and is connected to the second threaded hole. In this way, the second magnetic attraction block 31 can be fixed on the stud 34 through the second connecting member. Specifically, the through hole can be a countersunk hole, and the second connecting member can be a countersunk screw.

[0089] In some embodiments of the frame 3, such as Figure 8 shown, the frame 3 includes a frame, longitudinal beams and cross beams. The longitudinal beams and cross beams are arranged inside the frame. The longitudinal beams and cross beams intersect vertically and horizontally. The two ends of the longitudinal beam are respectively connected to two opposite sides of the frame, and the two ends of the cross beam are respectively connected to two opposite sides of the frame.

[0090] Furthermore, as Figure 8 shown, the longitudinal beams and cross beams divide the area inside the frame into four areas.

[0091] At least two connecting parts 32 are arranged in each area, and two of the connecting parts 32 are arranged diagonally at the edges of the corresponding area.

[0092] The above-mentioned implementation manners are only the preferred implementation manners of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by those skilled in the art on the basis of the present invention belong to the protection scope required by the present invention.

Claims

1. A LED curved screen, characterized in that: The LED curved screen includes a plurality of screen units, each of which includes a frame, an LED module, a control box and an arc locking mechanism, and the arc locking mechanism includes a locking component and an angle adjustment component; The angle adjustment assembly includes an adjustment seat and an adjustment member, wherein the adjustment seat is arranged at one side of the frame, the adjustment seat is connected to the frame, an arc groove is arranged on the adjustment seat, a first end of the adjustment member is a sliding part, the sliding part is adjustably slidably arranged in the arc groove, and a second end of the adjustment member is a first connecting part; The locking assembly is disposed on the other opposite side of the frame, the locking assembly is connected to the frame, and the locking assembly is locked and connected to the first connecting portion.

2. The LED curved screen according to claim 1, characterized in that: The locking assembly comprises a connecting seat, a first movable rod and a locking handle; The connecting seat is provided with a second connecting portion, and the second connecting portion is provided with a first through hole through which the first end of the first movable rod can pass; A first locking portion is provided at the first end of the first movable rod, the first end of the first movable rod passes through the second connecting portion, and the first locking portion is movably connected to the first connecting portion; The locking handle is disposed on the first movable rod, and the locking handle is threadedly connected to the first movable rod; When the first locking portion is movably connected to the first connecting portion, the locking handle is rotated to drive the first movable rod away from the first connecting portion to lock the movable connection.

3. The LED curved screen as claimed in claim 2, characterized in that: The first connecting portion is provided with a second through hole through which the first end of the first movable rod can pass; The first end of the first movable rod passes through the first connecting portion, and the first locking portion is a pin shaft arranged on the outer circumferential surface of the first end of the first movable rod; The second end of the first movable rod is provided with a rotating portion for rotating the first movable rod; The rotating portion is twisted, and the first locking portion rotates away from the position where the first locking portion passes through the second through hole.

4. The LED curved screen as claimed in claim 3, characterized in that: The locking assembly further includes a first elastic member, which is sleeved on the first movable rod, one end of the first elastic member abuts against the second connecting portion, and the other end of the first elastic member applies an elastic thrust to the first movable rod.

5. The LED curved screen as claimed in claim 4, characterized in that: A first positioning groove is provided on a side of the first connecting portion away from the connecting seat; The first positioning groove passes through the position where the second through hole is located; The rotating portion is twisted so that the first locking portion is screwed into the first positioning groove.

6. The LED curved screen according to claim 1, characterized in that: The sliding part is provided with a through groove arranged along the sliding direction thereof, and the through groove penetrates the sliding part; The angle adjustment assembly further comprises a quick release locking mechanism, wherein the quick release locking mechanism comprises a quick release head and a second movable rod; The quick-release head is rotatably disposed on the second end of the second movable rod; The second movable rod is inserted into the adjustment seat, the first end of the second movable rod passes through the through slot, the first end of the second movable rod is provided with a second locking portion, and the second locking portion is located on a side of the sliding portion away from the quick release head.

7. The LED curved screen according to claim 6, characterized in that: A plurality of second positioning grooves are provided along the edge of the through groove on one side of the sliding portion away from the quick-release head.

8. The LED curved screen according to claim 7, characterized in that: The sliding part is provided with a plurality of positioning holes arranged along the sliding direction, and the positioning holes are arranged in a one-to-one correspondence with the second positioning grooves; The angle adjustment assembly further comprises an elastic positioning member for positioning before locking, wherein the elastic positioning member is arranged on the adjustment seat and faces one of the positioning holes.

9. The LED curved screen according to claim 1, characterized in that: The back of the LED module is provided with a plurality of magnetic suction grooves and at least two connection holes, and the magnetic suction grooves are provided with a first magnetic suction block; The front side of the frame is provided with a plurality of second magnetic blocks and at least two connecting parts, the second magnetic blocks are arranged in a one-to-one correspondence with the first magnetic blocks, the connecting parts are arranged in a one-to-one correspondence with the connecting holes, and the connecting parts are provided with fasteners, which pass through the connecting parts and are fastened to the connecting holes.

10. The LED curved screen according to claim 9, characterized in that: The LED module comprises a substrate, a lamp board and a mask, wherein the lamp board is arranged on the front side of the substrate, and the mask covers the front side of the lamp board; The base plate is provided with a plug-in hole, and the back side of the base plate is provided with the magnetic suction groove and the connection hole; A plug connector for plugging with a control box is arranged on the back of the lamp panel, and the plug connector extends into the plug hole.

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