A spliced ​​multi-directional adjustable LED display

Abstract

The present invention discloses a spliced, multi-directionally adjustable LED display screen, comprising: LED module panels, a movable reset device, a flip device, a limit panel, and a connection panel. The LED module panels are provided in plurality and assembled into an LED display screen, and have inclined edges. Four movable reset devices are provided in a circular arrangement and fixed to the bottom of the LED module panels. The flip device is fixed to the bottom of the movable reset device and connects adjacent LED module panels. The limit panel is provided directly below the LED module panels and connects the flip devices on the same straight line. The connection panel connects the LED display screen to an external rotation mechanism. Compared to the prior art, the present invention can adjust the curvature of the LED display screen's surface by rotating multiple LED module panels in sequence according to the actual installation location and actual needs. Furthermore, the entire panel is connected to the rotation mechanism, allowing the overall angular position of the LED display screen to be adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of display screens, and more particularly to a spliced ​​multi-directionally adjustable LED display screen. Background Art

[0002] An LED display is a flat panel display that is composed of a number of small LED module panels. It is a device used to display various information such as text, images, and videos. LED display screens are widely used in commercial media, cultural performance markets, sports stadiums, information dissemination, news releases, securities trading, etc., and can meet the needs of different environments. At present, when installing large LED display screens in many outdoor occasions, according to the actual situation of the installation location, the LED display screen is required to present a curved surface as a whole after installation. Usually, the entire LED display screen is composed of multiple LED module panels, and a certain angle is formed between two adjacent module panels. In this way, the entire LED display screen presents the effect of an arc-shaped curved surface. The arc-shaped LED display screen formed by the splicing device used in the prior art has only a single curvature, cannot be adjusted at will, and has poor versatility. Therefore, it is necessary to provide a spliced ​​multi-directional adjustable LED display screen to solve the problems raised in the above background technology. Summary of the Invention

[0003] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a spliced ​​multi-directional adjustable LED display screen, comprising:

[0004] There are multiple LED module panels, which are combined into an LED display screen, and the edges are inclined surfaces;

[0005] There are four mobile reset devices distributed in a ring and fixed at the bottom of the LED module panel;

[0006] A flip device is fixed to the bottom of the mobile reset device and connects adjacent LED module panels;

[0007] The limit panel is set just below the LED module panel and connected to the flip device on the same straight line;

[0008] Connecting panel, connecting LED display screen and external rotation mechanism.

[0009] Furthermore, preferably, the mobile reset device includes:

[0010] There are two fixed frames symmetrically distributed, the top of which is slidably connected to the LED module panel and the bottom is fixedly connected to the flip device;

[0011] A moving block is slidably disposed on the fixed frame, and the moving block is slidably connected to the turning device;

[0012] A compression spring is disposed in the fixed frame and connects the fixed frame and the moving block;

[0013] A horizontal plate is provided between the two fixed frames and connects the movable blocks on both sides;

[0014] The connecting chute is fixedly connected to the transverse plate and the LED module panel. That is, under the action of the flipping device, the fixed frames in the two adjacent sets of movable reset devices are fixed in position. Driven by the movable block and the compression spring, the transverse plate and the connecting chute push the LED module panels on both sides toward the middle, so that the edges of the LED module panels on both sides are tightly fitted. When the LED module panels are flipped, the display screen is in a concave arc state, the angle between the adjacent LED module panels decreases, and under the action of mutual compression, the LED module panels move toward both sides, driving the movable block to compress the compression spring. When the flipping device is reset, the compression spring pushes the LED module panels back to their original position. When the LED module panels are flipped, the display screen is in a convex arc state, the angle between the adjacent LED module panels increases, and the LED module panels on both sides move toward the middle under the action of the compression spring, so that the inclined surfaces of the LED module panels are fitted together, ensuring a tight connection between the LED module panels. When the flipping device is reset, it simultaneously drives the LED module panels back to their original position and compresses the compression spring to reset.

[0015] Furthermore, preferably, a sliding shaft is provided inside the connecting chute, a slidable sliding block is provided on the sliding shaft, return springs are provided on both sides of the sliding block, and the sliding block is fixedly connected to the LED module panel. That is, when the LED module panel is flipped under the action of the flipping device, the LED module panel moves under the action of the compression spring. At this time, the connecting chute in the moving direction is driven by the cross plate and moves along with the LED module panel. The connecting chute in a direction perpendicular to the moving direction is slidably connected to the LED module panel. That is, the LED module panel moves within the connecting chute via the sliding block, and the sliding block compresses the return spring. When the entire display screen changes from an arc surface to a flat surface and the LED module panel is reset, the return spring drives the sliding block to reset, and at the same time assists the LED module panel in resetting.

[0016] Furthermore, preferably, the turning device includes:

[0017] A first rotating panel is fixedly connected to the movable reset device;

[0018] A second rotating panel is rotatably connected to the first rotating panel and fixedly connected to the movable reset device on the adjacent LED module panel;

[0019] a reversing mechanism connecting the first rotating panel and the second rotating panel;

[0020] A load-bearing panel is arranged directly below the reversal mechanism;

[0021] Two symmetrically spaced limit rings are provided at either end of the reversing mechanism and are rotatably connected to it. This means that under the action of the reversing mechanism, the first and second rotating panels rotate in opposite directions, thereby driving the movable reset device and the corresponding LED module panels to rotate, adjusting the angle between the LED module panels to adjust the overall curvature of the display. Furthermore, as the reversing mechanism rotates, the support panel and limit rings constrain its position.

[0022] Furthermore, preferably, the reversing mechanism includes:

[0023] An inner shaft connected to the first rotating panel, and having two ends rotatably connected to the limiting ring;

[0024] Two first bevel gears are arranged opposite to each other, fixed on the inner shaft, and fixedly connected to the first rotating panel;

[0025] a sleeve shaft, rotatably disposed on the inner shaft and fixedly connected to the second rotating panel;

[0026] Two second bevel gears are arranged opposite to each other and fixed at both ends of the sleeve shaft;

[0027] The transmission bevel gear meshes with the first and second bevel gears on the same side. The transmission bevel gear drives the first and second bevel gears to rotate synchronously in opposite directions. This, in turn, drives the first and second rotating panels to rotate synchronously in opposite directions under the transmission of the inner shaft and sleeve shaft, driving the LED module panel to rotate to adjust the curvature of the display surface.

[0028] Furthermore, preferably, a drive motor is provided on the bearing panel, and the drive motor is fixedly connected to the transmission bevel gear. Driven by the drive motor, the transmission bevel gear rotates, thereby driving the reversing mechanism to operate, and under the action of the bearing panel, the drive motor remains in a fixed position.

[0029] Furthermore, preferably, telescopic shafts are hinged on both sides of the limit panel, a universal shaft is provided at the bottom, and the telescopic shafts are fixedly connected to the bearing panel in the flipping device. When the flipping device on the left side of the limit panel is in operation, the LED module panels on both sides of the flipping device are driven to flip, thereby driving the telescopic shaft on the right side of the limit panel to rotate on the limit panel. During the rotation of the LED module panels, if the display screen is in a concave arc state, the two LED module panels squeeze each other, causing the LED module panels to move outward, thereby driving the flipping device on the right side of the limit panel to move along with the LED module panels and the movable reset device. Conversely, if the display screen is in a convex arc state, the flipping device on the right side of the limit panel moves toward the middle along with the LED module panels and the movable reset device. When any flipping device is flipped, the other flipping devices will move along with the LED module panels to ensure that the flipping device is always at the intersection of the LED module panels.

[0030] Furthermore, preferably, the cardan shaft is only provided on the limit panel located in the middle of the LED display, and the cardan shaft is connected to the external rotation mechanism via a connection panel. Under the action of the external rotation mechanism, the entire LED display can be widely displaced and angularly adjusted. The multiple cardan shafts rotate synchronously, driving the entire LED display to perform small angular adjustments in a fixed position.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] In the present invention, adjacent LED module panels are rotated simultaneously by a flipping device, and multiple LED module panels are rotated in turn. The curvature of the surface can be adjusted according to the actual situation and actual needs of the installation position, and the whole is connected to the rotating mechanism, so the overall angle position of the LED display screen can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the overall structure of a spliced ​​multi-directional adjustable LED display;

[0034] Figure 2 This is a bottom view of a spliced ​​multi-directional adjustable LED display;

[0035] Figure 3 This is a schematic diagram of the structure of a mobile reset device in a spliced ​​multi-directional adjustable LED display screen;

[0036] Figure 4 This is a schematic diagram of the connecting chute structure in a spliced ​​multi-directional adjustable LED display;

[0037] Figure 5 This is a schematic diagram of the structure of a flip device in a spliced ​​multi-directional adjustable LED display;

[0038] Figure 6 A side view of a flip device in a spliced ​​multi-directionally adjustable LED display.

[0039] Figure 7 This is a schematic diagram of the reversing mechanism structure in a spliced ​​multi-directional adjustable LED display screen;

[0040] In the figure: 1. LED module panel; 2. Moving reset device; 3. Flipping device; 4. Limiting panel; 5. Connecting panel; 21. Fixed frame; 22. Moving block; 23. Compression spring; 24. Horizontal plate; 25. Connecting slide; 31. First rotating panel; 32. Second rotating panel; 33. Reversing mechanism; 34. Load-bearing panel; 35. Limiting ring; 41. Telescopic shaft; 42. Universal joint; 251. Sliding shaft; 252. Sliding block; 253. Resetting spring; 331. Inner shaft; 332. First bevel gear; 333. Sleeve shaft; 334. Second bevel gear; 335. Transmission bevel gear. DETAILED DESCRIPTION

[0041] See also Figures 1 to 7 In an embodiment of the present invention, a spliced ​​multi-directional adjustable LED display screen includes:

[0042] LED module panels 1, which are provided in plurality and are combined into an LED display screen, and have inclined edges;

[0043] The mobile reset device 2 is provided with four in a circular arrangement and fixed at the bottom of the LED module panel 1;

[0044] The flip device 3 is fixed to the bottom of the movable reset device 2 and connected to the adjacent LED module panels 1;

[0045] The limiting panel 4 is arranged just below the LED module panel 1 and connected to the flip device 3 on the same straight line;

[0046] The connecting panel 5 connects the LED display screen with the external rotating mechanism.

[0047] In this embodiment, the mobile reset device 2 includes:

[0048] Two fixed frames 21 are symmetrically arranged, the top of which is slidably connected to the LED module panel 1 and the bottom of which is fixedly connected to the flip device 3;

[0049] A moving block 22 is slidably disposed on the fixed frame 21 and is slidably connected to the flipping device 3;

[0050] A compression spring 23 is provided in the fixed frame 21 and connects the fixed frame 21 and the moving block 22;

[0051] A horizontal plate 24 is provided between the two fixed frames 21 and connects the movable blocks 22 on both sides;

[0052] The connecting slide groove 25 is fixedly connected to the transverse plate 24 and is also fixedly connected to the LED module panel 1 . That is to say, under the action of the flipping device 3, the fixed frames 21 in the two adjacent groups of movable reset devices 2 are fixed in position, and driven by the moving block 22 and the compression spring 23, the cross plate 24 and the connecting slide 25 push the LED module panels 1 on both sides to squeeze toward the middle, so that the edges of the LED module panels 1 on both sides are tightly fitted. When the LED module panels 1 are flipped, the display screen is in a concave arc state. At this time, the angle between the adjacent LED module panels 1 becomes smaller, and under the action of mutual extrusion, the LED module panels 1 move to both sides, driving the moving block 22 to squeeze the compression spring 23. When the flipping device 3 is reset, the compression spring 23 pushes the LED module panels 1 to reset; when the LED module panel 1 is flipped, the display screen is in a convex arc state. At this time, the angle between the adjacent LED module panels 1 becomes larger, and the LED module panels 1 on both sides move toward the middle under the action of the compression spring 23, so that the inclined surfaces of the side edges of the LED module panels 1 fit together to ensure that the LED module panels 1 are tightly connected. When the flipping device 3 is reset, it simultaneously drives the LED module panels 1 to reset and compresses the compression spring 23 to reset.

[0053] In this embodiment, the connecting chute 25 is provided with a sliding shaft 251, a slidable sliding block 252 is provided on the sliding shaft 251, and return springs 253 are provided on both sides of the sliding block 252. The sliding block 252 is fixedly connected to the LED module panel 1. That is, when the LED module panel 1 is flipped under the action of the flipping device 3, the LED module panel 1 moves under the action of the compression spring 23. At this time, the connecting chute 25 in the moving direction follows the movement of the LED module panel 1 under the drive of the cross plate 24. The connecting chute 25 in a direction perpendicular to the moving direction is slidably connected to the LED module panel 1. That is, the LED module panel 1 moves in the connecting chute 25 via the sliding block 252, and the sliding block 252 compresses the return spring 253. When the entire display screen changes from the curved surface to the flat surface and the LED module panel 1 is reset, the return spring 253 drives the sliding block 252 to reset, thereby assisting the LED module panel 1 in resetting.

[0054] In this embodiment, the flipping device 3 includes:

[0055] The first rotating panel 31 is fixedly connected to the movable reset device 2;

[0056] The second rotating panel 32 is rotatably connected to the first rotating panel 31 and fixedly connected to the movable reset device 2 on the adjacent LED module panel 1;

[0057] A reversing mechanism 33 connecting the first rotating panel 31 and the second rotating panel 32;

[0058] The carrying panel 34 is arranged directly below the reversing mechanism 33;

[0059] Two limiting rings 35 are symmetrically arranged at either end of the reversing mechanism 33 and are rotatably connected to the reversing mechanism 33. That is, under the action of the reversing mechanism 33, the first rotating panel 31 and the second rotating panel 32 rotate in opposite directions, thereby driving the movable reset device 2 and the corresponding LED module panel 1 to rotate, adjusting the angle between the LED module panels 1 to achieve adjustment of the overall curvature of the display screen. Furthermore, as the reversing mechanism 33 rotates, the supporting panel 34 and the limiting rings 35 limit the position of the reversing mechanism 33.

[0060] In this embodiment, the reversing mechanism 33 includes:

[0061] The inner shaft 331 is connected to the first rotating panel 31 and is rotatably connected to the limiting ring 35 at both ends;

[0062] Two first bevel gears 332 are oppositely arranged and fixed on the inner shaft 331 and fixedly connected to the first rotating panel 31;

[0063] The sleeve shaft 333 is rotatably disposed on the inner shaft 331 and fixedly connected to the second rotating panel 32;

[0064] Two second bevel gears 334 are provided opposite to each other and fixed at both ends of the sleeve shaft 333;

[0065] The transmission bevel gear 335 meshes with the first bevel gear 332 and the second bevel gear 334 on the same side. The transmission bevel gear 335 drives the first bevel gear 332 and the second bevel gear 334 to rotate synchronously in opposite directions. This, in turn, is driven by the inner shaft 331 and the sleeve shaft 333, which in turn drives the first rotating panel 31 and the second rotating panel 32 to rotate synchronously in opposite directions, thereby driving the LED module panel 1 to rotate and adjust the curvature of the display screen surface.

[0066] In this embodiment, a drive motor is provided on the bearing panel 34, and the drive motor is fixedly connected to the transmission bevel gear 335. Driven by the drive motor, the transmission bevel gear 335 rotates, thereby driving the reversing mechanism 33 to operate, and under the action of the bearing panel 34, the drive motor remains in a fixed position.

[0067] In this embodiment, the limiting panel 4 is hinged with telescopic shafts 41 on both sides, and a universal shaft 42 is provided at the bottom. The telescopic shafts 41 are fixedly connected to the supporting panel 34 of the flipping device 3. When the flipping device 3 on the left side of the limiting panel 4 is in operation, the LED module panels 1 on both sides of the flipping device 3 are flipped, thereby driving the telescopic shaft 41 on the right side of the limiting panel 4 to rotate on the limiting panel 4. During the rotation of the LED module panels 1, if the display screen is in a concave arc state, the two LED module panels 1 squeeze each other, causing the LED module panels 1 to move outward, thereby driving the flipping device 3 on the right side of the limiting panel 4 to move along with the LED module panels 1 and the movable reset device 2. Conversely, if the display screen is in a convex arc state, the flipping device 3 on the right side of the limiting panel 4 moves toward the middle along with the LED module panels 1 and the movable reset device 2. When any flipping device 3 is flipped, the other flipping devices 3 will move along with the LED module panels 1 to ensure that the flipping device 3 is always at the intersection of the LED module panels 1.

[0068] In this embodiment, the universal joints 42 are located only on the limit panel 4 located in the middle of the LED display, and are connected to the external rotation mechanism via the connection panel 5. The external rotation mechanism allows the entire LED display to undergo large displacements and angular adjustments. The synchronous rotation of the multiple universal joints 42 allows the entire LED display to undergo small angular adjustments within a fixed position.

[0069] During the specific implementation, first, in the initial state, each LED module panel 1 forms an LED display screen plane under the restriction of the moving reset device 2 and the flip device 3. The universal shaft 42 is connected to the limit panel 4 on the back of the LED module panel 1 in the middle of the display screen to perform fixed-point rotation adjustment on the entire display screen, and multiple universal shafts 42 are connected to the connection panel 5. Under the action of the external rotation mechanism, the displacement and angle are adjusted. When the display screen switches to the concave arc state, under the action of the flip device 3, the angle between adjacent LED module panels 1 becomes smaller, and under the action of mutual extrusion, the LED module panel 1 moves to both sides, driving the moving block 22 to squeeze the compression spring 23, and the sliding block 252 to squeeze the reset spring 253, while driving the flip devices 3 on both sides to move to both sides following the LED module panel 1. Then the flip devices 3 on both sides are driven in turn to rotate the LED module panels 1 in turn, and the display screen forms a concave arc surface; when the display screen switches to the convex arc surface state, under the action of the flip device 3, the angle between adjacent LED module panels 1 becomes larger, and the LED module panels 1 on both sides move toward the middle under the action of the compression springs 23, so that the inclined surfaces of the side edges of the LED module panels 1 fit together to ensure a tight connection between the LED module panels 1, and the sliding block 252 squeezes the reset spring 253, while driving the flip devices 3 on both sides to move toward the middle following the LED module panel 1, and then the flip devices 3 on both sides are driven in turn to rotate the LED module panels 1 in turn, and the display screen forms a convex arc surface. Under the unified transformation of multiple groups of LED module panels 1, the LED display screen can adjust the curvature of the surface according to the scene requirements, and has high versatility.

[0070] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A spliced ​​multi-directional adjustable LED display, characterized by: include: A plurality of LED module panels (1) are provided and assembled into an LED display screen, and the edges of the panels are inclined surfaces; Four movable reset devices (2) are provided in a circular arrangement and fixed to the bottom of the LED module panel (1); A flip device (3) is fixed to the bottom of the movable reset device (2) and is connected to adjacent LED module panels (1); A limit panel (4) is arranged directly below the LED module panel (1) and is connected to the flip device (3) on the same straight line; A connecting panel (5) connects the LED display screen and the external rotating mechanism; The mobile resetting device (2) comprises: Two fixed frames (21) are symmetrically distributed, the top of which is slidably connected to the LED module panel (1) and the bottom of which is fixedly connected to the flip device (3); A moving block (22) is slidably arranged on the fixed frame (21), and the moving block (22) is slidably connected to the turning device (3); A compression spring (23) is disposed in the fixed frame (21) and connects the fixed frame (21) and the moving block (22); A transverse plate (24) is provided between the two fixed frames (21) and connects the movable blocks (22) on both sides; A connecting chute (25) is fixedly connected to the horizontal plate (24) and is also fixedly connected to the LED module panel (1); The turning device (3) comprises: A first rotating panel (31) is fixedly connected to the movable reset device (2); A second rotating panel (32) is rotatably connected to the first rotating panel (31) and fixedly connected to the movable reset device (2) on the adjacent LED module panel (1); A reversing mechanism (33) connecting the first rotating panel (31) and the second rotating panel (32); A bearing panel (34) is arranged directly below the reversing mechanism (33); Two limiting rings (35) are symmetrically distributed and arranged at both ends of the reversing mechanism (33), and are rotationally connected to the reversing mechanism (33).

2. The spliced ​​multi-directional adjustable LED display according to claim 1, characterized in that: A sliding shaft (251) is provided inside the connecting slide groove (25), a slidable sliding block (252) is provided on the sliding shaft (251), return springs (253) are provided on both sides of the sliding block (252), and the sliding block (252) is fixedly connected to the LED module panel (1).

3. The spliced ​​multi-directional adjustable LED display according to claim 1, characterized in that: The reversing mechanism (33) comprises: An inner shaft (331) is connected to the first rotating panel (31), and its two ends are rotatably connected to the limiting ring (35); Two first bevel gears (332) are arranged opposite to each other, fixed on the inner shaft (331), and fixedly connected to the first rotating panel (31); A sleeve shaft (333) is rotatably mounted on the inner shaft (331) and fixedly connected to the second rotating panel (32); Two second bevel gears (334) are arranged opposite to each other and fixed at both ends of the sleeve shaft (333); The transmission bevel gear (335) is meshed with the first bevel gear (332) and the second bevel gear (334) on the same side.

4. The spliced ​​multi-directional adjustable LED display according to claim 1, characterized in that: A driving motor is provided on the bearing panel (34), and the driving motor is fixedly connected to the transmission bevel gear (335).

5. The spliced ​​multi-directional adjustable LED display according to claim 1, characterized in that: Telescopic shafts (41) are hinged on both sides of the limiting panel (4), a universal shaft (42) is provided at the bottom, and the telescopic shaft (41) is fixedly connected to the bearing panel (34) in the turning device (3).

6. The spliced ​​multi-directional adjustable LED display according to claim 5, characterized in that: The universal shaft (42) is only arranged on the limiting panel (4) located in the middle of the LED display screen, and the universal shaft (42) is connected to the external rotating mechanism through the connecting panel (5).

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