An outdoor LED display screen

Abstract

The present invention discloses an outdoor LED display large screen, belonging to the technical field of display screens, which includes a multi-screen installation frame. A plurality of LED display screens that are rotatably arranged with each other are arranged in the multi-screen installation frame. The LED display screen includes an installation module and a display module arranged on the installation module; the installation module includes a rear installation die base, a middle connection module is arranged at the middle position of the rear installation die base, and telescopic end modules are connected to both sides of the rear installation die base through folding connectors. Through the cooperation of the flexible LED substrate and the telescopic end module, the present invention shrinks and folds the edge of the display screen inward before rotation, eliminates the problem of leaving a gap due to the thickness of the traditional hard screen, avoids the breakage of the playing picture, realizes seamless connection during rotation, and the translational adjustment of the telescopic end module combined with the inward folding of the flexible LED board can dynamically adapt to different rotation angles, ensuring visual coherence during multi-screen synchronous display.

Description

Technical Field

[0001] The present invention relates to the technical field of display screens, and particularly to an outdoor LED display screen. Background Art

[0002] The rotating LED display screen has opened up a unique path in display technology through the collaborative innovation of machinery and electronics. In the future, with the penetration of AI and Internet of Things technologies, its application scenarios will be further expanded towards intelligence and personalization, becoming an important carrier for smart cities and digital displays;

[0003] In the current multi-screen interaction process, due to its thickness, when the LED display screen rotates, the thickness will affect the rotation of two adjacent display screens. Therefore, there is often a certain gap between the current multi-screens to meet the rotation requirements. However, the existence of the gap makes the videos displayed on the multi-screens incoherent when synchronously displayed, affecting the video display effect. Based on this, an outdoor LED display screen is proposed herein. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art, and to propose an outdoor LED display screen.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An outdoor LED display screen includes a multi-screen installation frame, and a plurality of LED display screens that are rotatably arranged with each other are arranged inside the multi-screen installation frame. The LED display screen includes an installation module and a display module arranged on the installation module;

[0007] The installation module includes a rear installation mold base. A middle connection module is arranged at the middle position of the rear installation mold base. Telescopic end modules are connected to both sides of the rear installation mold base through folding connectors. The display module is installed on the middle connection module, and both ends thereof are connected to the telescopic end modules. The rear installation mold base is connected to the display module through a traction connector;

[0008] Connection turntables are arranged at both ends of the rear installation mold base. The connection turntables and the multi-screen installation frame are rotatably connected through a damping rubber layer. A control motor is arranged inside the multi-screen installation frame. The control motor is connected to an adjustment vertical shaft through a multi-drive component. The adjustment vertical shaft is connected to the connection turntable through a delay drive component. The adjustment vertical shaft is connected to the telescopic end modules on both sides through a rack control component.

[0009] As a preferred solution, the folding connector includes a limit connection port opened on the rear installation mold base. A telescopic limit member is fixedly connected to the side wall of the telescopic end module. A guide post is connected to the inner wall of the limit connection port. A guiding port adapted to the guide post is opened on the telescopic limit member.

[0010] As a preferred solution, the traction connecting member includes traction ports opened at both ends of the rear mounting die base. A traction block is connected to the inner wall of the traction port through a traction spring, and the traction block is connected to a guiding traction column through a traction rod.

[0011] As a preferred solution, the multi-drive assembly includes a control worm shaft connected to the output end of the control motor, and a worm gear disk meshingly connected to the control worm shaft is fixedly connected to the outer side wall of the adjusting vertical shaft.

[0012] As a preferred solution, the delay driving member includes a delay ring fixedly arranged on the outer side wall of the adjusting vertical shaft. A sector delay groove is formed in the inner wall of the connecting turntable, and a delay torsion plate located in the sector delay groove is fixedly connected to the outer side wall of the delay ring.

[0013] As a preferred solution, the rack control member includes a transverse guide seat arranged in the rear mounting die base. An adjusting strip is slidably arranged in the inner wall of the transverse guide seat. One end of the adjusting strip extends outwards and is fixedly connected to the side wall of the telescopic end module. The other end of the adjusting strip is connected to the side wall of the transverse guide seat through a return spring, and a control gear is fixedly connected to the outer side wall of the adjusting vertical shaft.

[0014] As a preferred solution, fixed teeth are fixedly arranged on the adjusting strip. A rectangular sliding opening is formed in the side wall of the adjusting strip near the fixed teeth. A rectangular sliding block is connected to the inner wall of the rectangular sliding opening through a resisting spring, and moving teeth are fixedly arranged on the rectangular sliding block.

[0015] A display module includes a flexible LED substrate and an LED display layer arranged on the flexible LED substrate. Both ends of the flexible LED substrate are connected to the telescopic end module, the middle thereof is connected to the middle connection module, and both sides of the flexible LED substrate are connected to the guiding traction column.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. Through the cooperation of the flexible LED substrate and the telescopic end module, the present invention shrinks and folds the edge of the display screen inward before rotation, eliminates the problem of the need to reserve a gap due to the thickness of the traditional hard screen, avoids the breakage of the playing picture, realizes seamless connection during rotation, and the translational adjustment of the telescopic end module combined with the inward folding of the flexible LED board can dynamically adapt to different rotation angles, ensuring visual coherence during multi-screen synchronous display.

[0018] 2. Through the cooperation of the delay torsion plate and the sector delay groove, the present invention realizes the step-by-step actions of first contraction and then rotation, avoiding mechanical interference, ensuring the rotation synchronism and structural stability. With the guide post limit of the folding connector and the elastic traction of the traction spring, the horizontal displacement of the telescopic end module is accurately controlled, preventing the deformation of the flexible plate caused by deviation, and automatically completing the seamless conversion between the multi-screen rotation mode and the combined large-screen mode to meet diverse display requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic assembly structure diagram of an outdoor LED display large screen proposed by the present invention;

[0020] Figure 2 It is a schematic assembly state diagram of the LED display screen in an outdoor LED display large screen proposed by the present invention;

[0021] Figure 3 It is a schematic structural diagram of the installation module in an outdoor LED display large screen proposed by the present invention;

[0022] Figure 4 It is Figure 3 an enlarged structural diagram at A in

[0023] Figure 5 It is a schematic connection relationship structural diagram of the rack control part in an outdoor LED display large screen proposed by the present invention;

[0024] Figure 6 It is a schematic connection relationship diagram of each component on the adjustment vertical axis in an outdoor LED display large screen proposed by the present invention;

[0025] Figure 7 It is a schematic transmission structure diagram of the multi-drive component and the rack control part in an outdoor LED display large screen proposed by the present invention;

[0026] Figure 8 It is a schematic assembly structure diagram of the adjustment bar and the horizontal guide seat in an outdoor LED display large screen proposed by the present invention;

[0027] Figure 9 It is Figure 8 an enlarged structural diagram at B in

[0028] In the figure: 1. Multi-screen installation frame; 2. Rear installation die base; 3. Middle connection module; 4. Telescopic end module; 5. Connecting turntable; 6. Control motor; 7. Adjusting vertical shaft; 8. Telescopic limit piece; 9. Guide post; 10. Guide port; 11. Traction port; 12. Traction block; 13. Traction rod; 14. Guide and traction column; 15. Control worm shaft; 16. Worm gear disk; 17. Delay ring; 18. Sector delay groove; 19. Delay torsion plate; 20. Horizontal guide base; 21. Adjusting strip; 22. Control gear; 23. Fixed tooth; 24. Rectangular slider; 25. Moving tooth; 26. Flexible LED substrate; 27. LED display layer. Detailed implementation manners

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0031] Embodiment, referring to Figures 1 to 9 , an outdoor LED display large screen, including a multi-screen installation frame 1, in which a plurality of mutually rotatable LED display screens are arranged. The LED display screen includes an installation module and a display module arranged on the installation module;

[0032] The display module includes a flexible LED substrate 26 and an LED display layer 27 arranged on the flexible LED substrate 26. Both ends of the flexible LED substrate 26 are connected to the telescopic end module 4, and the middle thereof is connected to the middle connection module 3. Both sides of the flexible LED substrate 26 are connected to the guide and traction column 14.

[0033] It should be noted that when the display module is set as the flexible LED substrate 26, when it is necessary to rotate the LED display screen, before the rotation action is started, the telescopic end modules 4 on both sides can be contracted towards the central connection module 3, so as to realize the inward folding of the flexible LED substrate 26 at the telescopic part. The folded flexible LED substrate 26 can ensure that the display area forms a tightly contacting state, and the playback area can be synchronously adjusted in the folded area (that is, by pre-setting, the display screen in the folded area is hidden, without affecting the coherent effect of the display and playback during rotation), ensuring the playback effect during the rotation state and multi-screen display, so as to ensure that when the multi-screens rotate, they will not be affected by the thickness of the display screens between each other.

[0034] The installation module includes a rear installation base 2. A central connection module 3 is arranged at the middle position of the rear installation base 2. The two sides of the rear installation base 2 are connected with telescopic end modules 4 through folding connectors. Further, the folding connector includes a limit connection port opened on the rear installation base 2. A telescopic limit member 8 is fixedly connected to the side wall of the telescopic end module 4. A guide post 9 is connected to the inner wall of the limit connection port. A guiding port 10 adapted to the guide post 9 is opened on the telescopic limit member 8.

[0035] It should be noted that the limit connection port is opened on the surface of the rear installation base 2. The setting of the guide post 9 can realize the horizontal limit of the telescopic limit member 8 moving in the limit connection port, ensuring that only horizontal sliding can occur between the two. Under the action of multiple folding connectors, the telescopic end modules 4 arranged at both ends can be translated and adjusted on both sides of the central connection module 3.

[0036] The display module is installed on the central connection module 3, and its two ends are connected with the telescopic end modules 4. The rear installation base 2 is connected with the display module through a traction connector.

[0037] Further, the traction connector includes traction ports 11 opened at both ends of the rear installation base 2. A traction block 12 is connected to the inner wall of the traction port 11 through a traction spring. The traction block 12 is connected with a guiding traction post 14 through a traction rod 13.

[0038] Among them, under the action of the traction block 12 connected by the traction spring, when the horizontal pulling force generated by the telescopic end module 4 on the flexible LED substrate 26 decreases, the guiding traction post 14 will drive the flexible LED substrate 26 to fold inward, realizing the effect of inward folding and storage of the flexible LED substrate 26.

[0039] The two ends of the rear-mounted die holder 2 are provided with connecting turntables 5. The connecting turntables 5 and the multi-screen mounting frame 1 are rotationally connected through a damping rubber layer. Under the action of the damping rubber layer, it is difficult for the connecting turntables 5 to rotate without external force, ensuring the reliability during the delayed rotation process. A control motor 6 is arranged inside the multi-screen mounting frame 1. The control motor 6 is a prior art and will not be elaborated in detail here. The control motor 6 is connected with an adjusting vertical shaft 7 through a multi-drive assembly. Further, the multi-drive assembly is arranged inside the multi-screen mounting frame 1. The multi-drive assembly includes a control worm shaft 15 connected to the output end of the control motor 6. A worm gear disk 16 meshing with the control worm shaft 15 is fixedly connected to the outer side wall of the adjusting vertical shaft 7.

[0040] Under the action of the control motor 6, the rotation of the control worm shaft 15 can be realized, and at the same time, the rotation of multiple worm gear disks 16 can be controlled, so as to control the adjusting vertical shaft 7 and achieve the effect of synchronously driving multiple display screens to rotate.

[0041] The adjusting vertical shaft 7 is connected with the connecting turntable 5 through a delay driving member. The delay driving member includes a delay ring 17 fixedly arranged on the outer side wall of the adjusting vertical shaft 7. A sector-shaped delay groove 18 is formed in the inner wall of the connecting turntable 5. A delay torsion plate 19 located in the sector-shaped delay groove 18 is fixedly connected to the outer side wall of the delay ring 17.

[0042] It should be noted that in the initial state, the delay torsion plate 19 on the adjusting vertical shaft 7 is located on the side away from the rotation direction of the sector-shaped delay groove 18. That is, when the adjusting vertical shaft 7 rotates, it will drive the delay torsion plate 19 connected to the delay ring 17 to rotate first in the sector-shaped delay groove 18, and then contact the inner wall of the sector-shaped delay groove 18 to drive the connecting turntable 5 to rotate, achieving the effect of delaying the control of the LED display screen to rotate.

[0043] The adjusting vertical shaft 7 is connected with the telescopic end modules 4 on both sides through a rack control member. The rack control member includes a transverse guide seat 20 arranged inside the rear-mounted die holder 2. An adjusting bar 21 is slidably arranged on the inner wall of the transverse guide seat 20. One end of the adjusting bar 21 extends outwards and is fixedly connected to the side wall of the telescopic end module 4. The telescopic end module 4 and the adjusting bar 21 are connected through a connecting block. The other end of the adjusting bar 21 is connected to the side wall of the transverse guide seat 20 through a return spring. A control gear 22 is fixedly connected to the outer side wall of the adjusting vertical shaft 7.

[0044] Further, fixed teeth 23 are fixedly arranged on the adjusting bar 21. A rectangular sliding opening is formed in the side wall of the adjusting bar 21 near the fixed teeth 23. A rectangular sliding block 24 is connected to the inner wall of the rectangular sliding opening through a contact spring. A moving tooth 25 is fixedly arranged on the rectangular sliding block 24.

[0045] The advantage of adopting the above structure is that the setting of the moving tooth 25 can drive the moving tooth 25 to slide towards the fixed tooth 23 when the control gear 22 rotates continuously. During the sliding process, the transmission driving force between the moving tooth 25 and the control gear 22 will be offset, that is, the meshing state is disengaged. When the control gear 22 rotates in reverse, the rectangular slider 24 connected to the moving tooth 25 is blocked in the rectangular sliding opening and cannot move towards the side close to the control gear 22. Cooperating with the fixed tooth 23, it can drive the entire adjusting strip 21 to reset, and the flexible LED substrate 26 in the original storage state can be unfolded again to restore to the large-screen display state.

[0046] When the present invention is in use, the LED display screen has two states: a multi-screen rotation display mode and a multi-screen combined large-screen display mode; when multi-screen rotation display is required, the control motor 6 is controlled to drive a plurality of adjusting vertical shafts 7 to rotate. When the adjusting vertical shafts 7 rotate, the control gear 22 connected to the adjusting vertical shafts 7 will drive the adjusting strip 21 engaged and connected thereto through the fixed teeth 23 to move. Under the action of the adjusting strips 21 on both sides, the telescopic end modules 4 located on both sides originally supported by the adjusting strips 21 will be driven to move towards the middle connection module 3, so that the display modules in the original unfolded state are received, thereby leaving a gap between adjacent two LED display screens to ensure that they will not affect each other when the LED display screen rotates for display;

[0047] When driving the telescopic end module 4 to move as described above, the adjusting vertical shaft 7 will drive the delay torsion plate 19 connected to the delay ring 17 to rotate first in the fan-shaped delay groove 18. When the telescopic end module 4 is completely received, the delay torsion plate 19 contacts the inner wall of the fan-shaped delay groove 18 and drives the connecting turntable 5 to rotate, realizing the rotation of the LED display screen and achieving multi-screen rotation display;

[0048] When multi-screen combined large-screen display is required, after the control motor 6 controls multiple display screens to stop, the control motor 6 is reversed to drive the adjusting vertical shaft 7 to reverse, so that the delay ring 17 connected to the adjusting vertical shaft 7 drives the delay torsion plate 19 to move in the fan-shaped delay groove 18. At this time, the connecting turntable 5 provided with the fan-shaped delay groove 18 will not rotate, but when the adjusting vertical shaft 7 reverses, it will drive the adjusting strip 21 to reset, so that the telescopic end module 4 that was moving towards the middle during the rotation stage is driven to move towards both sides, unfolding the flexible LED substrate 26 in the original folded state, so that adjacent LED display screens are attached to each other, meeting the requirements of large-screen playback and improving the video playback experience.

[0049] As described above, it is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. An outdoor LED display screen, comprising a multi-screen installation frame (1), characterized in that, A plurality of LED display screens that are rotatably arranged relative to each other are provided inside the multi-screen installation frame (1). The LED display screens include an installation module and a display module arranged on the installation module. The installation module includes a rear installation base (2). A central connection module (3) is arranged at the middle position of the rear installation base (2). The two sides of the rear installation base (2) are connected with telescopic end modules (4) through folding connectors. The display module is installed on the central connection module (3) and is connected to the telescopic end modules (4) at both ends thereof. The rear installation base (2) is connected to the display module through a traction connector. Connection turntables (5) are arranged at both ends of the rear installation base (2). The connection turntables (5) are rotatably connected to the multi-screen installation frame (1) through a damping rubber layer. A control motor (6) is arranged inside the multi-screen installation frame (1). The control motor (6) is connected with an adjustment vertical shaft (7) through a multi-drive assembly. The adjustment vertical shaft (7) is connected to the connection turntable (5) through a delay drive member. The adjustment vertical shaft (7) is connected to the telescopic end modules (4) on both sides through a rack control member. The folding connector includes a limit connection port opened on the rear installation base (2). A telescopic limit member (8) is fixedly connected to the side wall of the telescopic end module (4). A guide post (9) is connected to the inner wall of the limit connection port. A guiding port (10) adapted to the guide post (9) is opened on the telescopic limit member (8). The traction connector includes traction ports (11) opened at both ends of the rear installation base (2). A traction block (12) is connected to the inner wall of the traction port (11) through a traction spring. The traction block (12) is connected to a guiding traction post (14) through a traction rod (13). The delay drive member includes a delay ring (17) fixedly arranged on the outer side wall of the adjustment vertical shaft (7). A sector delay groove (18) is opened on the inner wall of the connection turntable (5). A delay torsion plate (19) located in the sector delay groove (18) is fixedly connected to the outer side wall of the delay ring (17).

2. An outdoor LED display screen according to claim 1, characterized in that, The multi-drive assembly includes a control worm shaft (15) connected to the output end of the control motor (6). A worm gear disk (16) meshed with the control worm shaft (15) is fixedly connected to the outer side wall of the adjustment vertical shaft (7).

3. An outdoor LED display screen according to claim 1, characterized in that, The rack control member includes a transverse guide seat (20) arranged inside the rear installation base (2). An adjustment strip (21) is slidably arranged on the inner wall of the transverse guide seat (20). One end of the adjustment strip (21) extends outwards and is fixedly connected to the side wall of the telescopic end module (4). The other end of the adjustment strip (21) is connected to the side wall of the transverse guide seat (20) through a return spring. A control gear (22) is fixedly connected to the outer side wall of the adjustment vertical shaft (7).

4. An outdoor LED display screen according to claim 3, characterized in that, Fixed teeth (23) are fixedly arranged on the adjustment strip (21). A rectangular sliding port is opened on the side wall of the adjustment strip (21) near the fixed teeth (23). A rectangular sliding block (24) is connected to the inner wall of the rectangular sliding port through a contact spring. Moving teeth (25) are fixedly arranged on the rectangular sliding block (24).

5. An outdoor LED display screen according to claim 1, characterized in that, The display module includes a flexible LED substrate (26) and an LED display layer (27) disposed on the flexible LED substrate (26). Both ends of the flexible LED substrate (26) are connected to the telescopic end module (4), and the middle thereof is connected to the middle connection module (3). Both sides of the flexible LED substrate (26) are connected to the guiding and towing columns (14).

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