A multi-form LED display screen

Abstract

The present invention relates to the field of LED display screens and relates to a multi-form LED display screen. The present invention is provided with multiple groups of display screen assemblies stacked in sequence from top to bottom. The display screen assembly includes a rotating drum installed through a suspension frame, a flexible LED screen installed on the rotating drum, a clamping ring fixedly connected to the inner wall of the rotating drum, a fixed gear ring fixed on the inner side of the clamping ring, a rotating shaft installed on the suspension frame and a lower ratchet gear meshing with the fixed gear ring, a worm wheel, a worm and a driving motor fixed on the rotating shaft, thereby realizing the angle adjustment of a single display screen assembly and the adjustment of the number of flexible LED screens spliced at a certain angle. The operation is simple and the control is convenient, meeting the display requirements of multi-angle and multi-number splicing combinations.

Description

Technical Field

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

[0002] LCD splicing screens can be used as standalone displays or spliced together to create ultra-large screens. Based on different usage requirements, the screen can be scaled up or down to accommodate various functions: single-screen split display, single-screen standalone display, any combination of displays, full-screen LCD splicing, dual-spliced LCD splicing, and vertical display. Image borders can be optionally compensated or masked, and digital signal roaming, zooming, stretching, and cross-screen display are supported. Various display scenarios can be set and run, and full HD signal processing can be performed in real time.

[0003] Traditional splicing displays can only be spliced on one plane and cannot meet user needs for multi-angle display and multi-angle splicing. Summary of the Invention

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a multi-form LED display screen that can realize multi-angle display and multi-angle splicing of LED display screens.

[0006] 2. Technical solution

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A multi-form LED display screen includes a base; a central support rod is fixedly connected to the base, and the upper end of the central support rod is fixedly connected to the mounting top plate, and multiple groups of display screen assemblies stacked vertically are provided between the base and the mounting top plate, and the display screen assembly includes a rotating drum arranged on the outside of the central support rod, a flexible LED screen is provided on the outside of the rotating drum, and spring hinges distributed along its length are fixedly connected to the inside of the flexible LED screen, and the spring hinges make the flexible LED screen unfolded in a horizontal state when not subject to external force, and the flexible LED screen is fixedly connected to the outer wall of the rotating drum through a fixed seat, and a clamping ring is fixedly connected to the inside of the rotating drum, and the clamping ring is clamped with a suspension frame and rotatably connected to the suspension frame, and the upper end of the suspension frame is fixedly connected to the mounting top plate; a fixed gear ring is fixedly connected to the inside of the clamping ring, and the fixed gear ring is meshed with a lower ratchet gear, and the lower ratchet gear is fixedly connected to a rotating shaft rotatably connected to the suspension frame, and the rotating shaft extends above the mounting top plate and is fixedly connected to a worm gear, and the worm gear is meshed with a worm, and the worm gear is connected to a driving motor through a coupling.

[0009] Furthermore, a group of symmetrically arranged traction wires are fixedly connected to the spring hinge near the end of the flexible LED screen. The traction wires pass through the rotating drum and extend into the rotating drum. A winding drum connected to the traction wires is provided in the rotating drum. The winding drum is fixedly connected to a mounting shaft. The mounting shaft is rotatably connected to an annular mounting plate fixedly connected to the inner wall of the rotating drum. A passive gear is fixedly sleeved on the lower part of the mounting shaft. The passive gear is engaged with a transmission gear ring rotatably connected to the annular mounting plate. The inner side of the transmission gear ring is engaged with an upper ratchet gear sleeved and fixed to the rotating shaft.

[0010] Preferably, the drum is a hollow cylinder with openings at both ends, the clamping ring is a circular ring fixedly connected to the inner wall of the drum and having a horizontal T-shaped cross section, and the lower part of the suspension frame is provided with an annular groove that cooperates with the clamping ring.

[0011] Preferably, the multiple groups of display screen assemblies stacked from top to bottom include multiple groups of suspension frames distributed in a spiral and equidistant manner, and the number of the suspension frames corresponds to the number of the rotating drums.

[0012] Preferably, the driving motor sleeve is provided with an upper cover fixedly connected to the mounting top plate.

[0013] Preferably, the lower ratchet gear includes a rotating disk fixedly sleeved with the rotating shaft, a gear sleeve sleeved on the outside of the rotating disk and rotatably connected to the rotating disk, and a pawl installed on the rotating disk and clamped with the gear sleeve, and a pawl groove is provided on the inner wall of the gear sleeve to cooperate with the pawl.

[0014] Preferably, the upper ratchet gear and the lower ratchet gear are centrally symmetrical.

[0015] Preferably, the annular mounting plate is an annular plate fixedly connected to the inner wall of the drum, the transmission gear ring is a double-sided gear ring, and the annular mounting plate is equipped with an annular rail for the transmission gear ring to rotate.

[0016] Preferably, the spring hinge comprises a plurality of connecting pieces abutting against each other and arranged horizontally, and adjacent connecting pieces are hinged via hinge shafts, on which torsion springs abutting against the connecting pieces on both sides are sleeved.

[0017] Preferably, a guide tube is fixedly connected to the inner side of the rotating drum and is sleeved on the outer side of the traction wire. The guide tube is an arc-shaped hollow tube.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] (1) The present invention is provided with a plurality of display screen assemblies stacked in sequence from top to bottom. The display screen assemblies include a rotating drum installed by a suspension frame, a flexible LED screen installed on the rotating drum, a clamping ring fixedly connected to the inner wall of the rotating drum, a fixed gear ring fixed on the inner side of the clamping ring, a rotating shaft installed on the suspension frame and a lower ratchet gear meshing with the fixed gear ring, a worm wheel, a worm and a driving motor fixed on the rotating shaft, thereby realizing the angle adjustment of a single display screen assembly and the adjustment of the number of flexible LED screens spliced at a certain angle. The operation is simple and the control is convenient, and the display requirements of multiple angles and multiple splicing combinations are met.

[0021] (2) The present invention realizes rapid switching between the planar form and the annular form of the flexible LED screen by providing a spring hinge installed on the rear side of the flexible LED screen, a traction wire connected to the end of the spring hinge and extending into the rotating drum, and a winding drum installed in the rotating drum and wound around the traction wire.

[0022] (3) The present invention is provided with a mounting shaft connected to the winding drum, a passive gear sleeved on the mounting shaft, a transmission gear ring rotatably connected to the rotating drum, and an upper ratchet gear sleeved on the rotating shaft, so that the direction of the flexible LED screen and the display form of the flexible LED screen can be adjusted respectively when the rotating shaft rotates forward and reverse. The operation is simple and the control is convenient, and a variety of combination forms of display can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the three-dimensional structure of the present invention from the front side perspective;

[0024] Figure 2 is a schematic diagram of the three-dimensional structure of the present invention from a rear side perspective;

[0025] Figure 3 It is a longitudinal cross-sectional structural schematic diagram of the present invention;

[0026] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at A in the middle;

[0027] Figure 5 Schematic diagram of the assembly structure of the suspension bracket in the present invention;

[0028] Figure 6 This is a schematic diagram of the assembly structure of the rotating drum and the flexible LED screen in the present invention;

[0029] Figure 7 It is a schematic cross-sectional structural diagram of the rotary drum in the present invention;

[0030] Figure 8 Schematic diagram of the assembly structure of the suspension bracket and the rotating shaft in the present invention;

[0031] Figure 9 Schematic diagram of the assembly structure of the traction wire in the present invention;

[0032] Figure 10 Schematic diagram of the cross-sectional structure of the lower ratchet gear in the present invention;

[0033] Figure 11 This is a schematic diagram of the state of the flexible LED screen after being rolled up in the present invention.

[0034] Explanation of the numbers in the figure: 1. Base; 2. Center support rod; 3. Mounting top plate; 4. Flexible LED screen; 5. Fixed seat; 6. Rotating drum; 7. Suspension bracket; 8. Snap ring; 9. Fixed gear ring; 10. Lower ratchet gear; 1001. Rotating disk; 1002. Gear sleeve; 1003. Pawl; 11. Rotating shaft; 12. Worm gear; 13. Worm; 14. Driving motor; 15. Spring hinge; 16. Traction wire; 17. Guide tube; 18. Winding drum; 19. Mounting shaft; 20. Passive gear; 21. Transmission gear ring; 22. Upper ratchet gear; 23. Annular mounting plate; 24. Top cover. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0038] See also Figure 1-11In one embodiment of the present invention, a multi-form LED display screen includes a base 1; a central support rod 2 is fixedly connected to the base 1, and a mounting top plate 3 is fixedly connected to the upper end of the central support rod 2; a plurality of vertically stacked display screen assemblies are arranged between the base 1 and the mounting top plate 3; the display screen assembly includes a rotating drum 6 sleeved on the outside of the central support rod 2, a flexible LED screen 4 is arranged on the outside of the rotating drum 6, and a spring hinge 15 distributed along the length direction of the flexible LED screen 4 is fixedly connected to the inside of the flexible LED screen 4. The spring hinge 15 makes the flexible LED screen 4 unfolded in a horizontal state when no external force is applied. The ED screen 4 is fixedly connected to the outer wall of the rotating drum 6 through the fixed seat 5. A clamping ring 8 is fixedly connected to the inner side of the rotating drum 6. The clamping ring 8 is clamped with the suspension frame 7 and is rotatably connected to the suspension frame 7. The upper end of the suspension frame 7 is fixedly connected to the mounting top plate 3; a fixed gear ring 9 is fixedly connected to the inner side of the clamping ring 8. The fixed gear ring 9 is engaged with a lower ratchet gear 10. The lower ratchet gear 10 is fixedly connected to a rotating shaft 11 rotatably connected to the suspension frame 7. The rotating shaft 11 extends to the top of the mounting top plate 3 and is fixedly connected to a worm gear 12. The worm gear 12 is engaged with a worm 13. The worm 13 is connected to a drive motor 14 through a coupling.

[0039] Specifically, when using the multi-form LED display screen, by controlling the driving motor 14 of each display screen component, the driving motor 14 drives the rotating shaft 11 to rotate, the rotating shaft 11 drives the lower ratchet gear 10 to rotate, the lower ratchet gear 10 drives the fixed gear ring 9 to rotate, the fixed gear ring 9 drives the rotating drum 6 to rotate horizontally on the suspension frame 7, and the rotating drum 6 drives the flexible LED screen 4 thereon to rotate, so that multiple groups of flexible LED screens arranged above and below can be spliced as needed, which facilitates the control of the number and respective orientations of single or multiple flexible LED screens 4 in a certain direction, thereby realizing multi-angle display and splicing combination display of different numbers at different angles.

[0040] In this embodiment, the rotating drum 6 is a hollow cylinder with openings at both ends. The clamping ring 8 is a circular ring fixedly connected to the inner wall of the rotating drum 6 and has a horizontal T-shaped cross-section. An annular groove that cooperates with the clamping ring 8 is provided at the lower part of the suspension bracket 7.

[0041] In this embodiment, the suspension bracket 7 includes a vertical portion at the upper portion and a fan-shaped portion at the lower portion. The fan-shaped portion is provided with a fan-shaped groove for the snap ring 8 to slide.

[0042] In this embodiment, the multiple display screen assemblies stacked from top to bottom include multiple groups of suspension frames 7 distributed in a spiral and equidistant manner, and the number of the suspension frames 7 corresponds to the number of the rotating drums 6 in a one-to-one manner.

[0043] Specifically, the suspension frame 7 and the clamping ring 8 cooperate to rotate and install the rotating drum 6 on the suspension frame 7, thereby realizing the load-bearing of the rotating drum 6 and conveniently driving the rotating drum 6 to rotate. The orientation angle of each flexible LED screen can be adjusted to achieve multi-angle splicing and orientation adjustment.

[0044] In this embodiment, the driving motor 14 is sleeved with an upper cover 24 fixedly connected to the mounting top plate 3 .

[0045] Specifically, the device is made more integrated and more beautiful.

[0046] See also Figure 4 、 Figure 6 、 Figure 9 、 Figure 10 and Figure 11 In another embodiment of the present invention, the spring hinge 15 is fixedly connected to a group of symmetrically arranged traction wires 16 near the end position of the flexible LED screen. The traction wires 16 pass through the rotating drum 6 and extend into the rotating drum 6. A winding drum 18 wound around the traction wires 16 is provided in the rotating drum 6. The winding drum 18 is fixedly connected to a mounting shaft 19. The mounting shaft 19 is rotatably connected to an annular mounting plate 23 fixedly connected to the inner wall of the rotating drum 6. A passive gear 20 is fixedly sleeved on the lower part of the mounting shaft 19. The passive gear 20 is engaged with a transmission gear ring 21 rotatably connected to the annular mounting plate 23. The inner side of the transmission gear ring 21 is engaged with an upper ratchet gear 22 sleeved and fixed to the rotating shaft 11.

[0047] Specifically, when the driving motor 14 drives the rotating shaft 11 to rotate forward, it drives the lower ratchet gear 10 to rotate. When the driving motor 14 reverses and drives the rotating shaft 11 to reverse, the rotating shaft 11 drives the upper ratchet gear 22 to rotate. The upper ratchet gear 22 drives the passive gear 20 to rotate through the transmission gear ring 21. The passive gear 20 drives the installation shaft 19 to rotate. The installation shaft 19 drives the winding drum 18 to rotate. The winding drum 18 reels the traction wire 16. The traction wire 16 drives the spring hinge 15 to approach the rotating drum 6, so that the flexible LED screen 4 is converted from a flat screen form to a ring screen form, realizing a ring display, and realizing the rapid switching of the display form of the flexible LED screen 4; specifically, each display screen component can switch between the flat screen and the ring screen form as needed to meet different display requirements.

[0048] In this embodiment, the lower ratchet gear 10 includes a rotating disk 1001 that is fixedly sleeved with the rotating shaft 11, a gear sleeve 1002 that is sleeved on the outside of the rotating disk 1001 and rotatably connected to the rotating disk 1001, and a pawl 1003 that is installed on the rotating disk 1001 and engaged with the gear sleeve 1002. A pawl groove that cooperates with the pawl 1003 is provided on the inner wall of the gear sleeve 1002.

[0049] In this embodiment, the upper ratchet gear 22 and the lower ratchet gear 10 are centrally symmetrical.

[0050] Specifically, when the rotating shaft 11 rotates in one direction, it will drive one of the upper ratchet gear 22 and the lower ratchet gear 10 to rotate, so that the orientation adjustment and the shape adjustment do not interfere with each other. By controlling the rotation direction of the drive motor 14, the two adjustment modes can be efficiently switched, which is simple to operate and easy to control.

[0051] In this embodiment, the annular mounting plate 23 is an annular plate fixedly connected to the inner wall of the drum 6 , the transmission gear ring 21 is a double-sided gear ring, and the annular mounting plate 23 is equipped with an annular rail for the transmission gear ring 21 to rotate.

[0052] Specifically, it is ensured that after the rotating drum 6 rotates to different positions, the rotating shaft 11 can drive the installation shaft 19 to rotate through the upper ratchet gear 22 and the transmission gear ring 21, and then drive the winding drum 18 to rotate, thereby realizing the winding of the flexible LED screen under different orientation conditions.

[0053] In this embodiment, the spring hinge 15 includes multiple groups of connecting pieces that abut against each other and are horizontally arranged. Adjacent connecting pieces are hinged via hinge shafts, and torsion springs that abut against the connecting pieces on both sides are sleeved on the hinge shafts.

[0054] Specifically, when the traction wire 16 pulls the spring hinge 15, the flexible LED screen 4 is wrapped around the outside of the rotating drum 6 to achieve a ring display.

[0055] In this embodiment, a guide tube 17 is fixedly connected to the inner side of the rotating drum 6 and is sleeved on the outer side of the traction wire 16. The guide tube 17 is an arc-shaped hollow tube.

[0056] Specifically, the traction wire 16 is wound and pulled along the guide tube 17 .

[0057] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A multi-form LED display screen, characterized in that: The invention comprises a base (1); a central support rod (2) is fixedly connected to the base (1); a mounting top plate (3) is fixedly connected to the upper end of the central support rod (2); a plurality of vertically stacked display screen assemblies are provided between the base (1) and the mounting top plate (3); the display screen assembly comprises a rotating drum (6) sleeved on the outer side of the central support rod (2); a flexible LED screen (4) is provided on the outer side of the rotating drum (6); a spring hinge (15) distributed along the length direction of the flexible LED screen (4) is fixedly connected to the inner side of the flexible LED screen (4); the spring hinge (15) The flexible LED screen (4) is in an unfolded horizontal state without being subjected to external force. The flexible LED screen (4) is fixedly connected to the outer wall of the rotating drum (6) through the fixing seat (5). The inner side of the rotating drum (6) is fixedly connected with a clamping ring (8). The clamping ring (8) is clamped with a suspension frame (7) and is rotatably connected to the suspension frame (7). The upper end of the suspension frame (7) is fixedly connected to the mounting top plate (3). The inner side of the clamping ring (8) is fixedly connected with a fixed gear ring (9). The fixed gear ring (9) is meshed with a lower ratchet gear (10). The lower ratchet gear (10) is fixedly connected to the inner side of the clamping ring (8). The wheel gear (10) is fixedly connected to a rotating shaft (11) that is rotatably connected to the suspension frame (7). The rotating shaft (11) extends above the mounting top plate (3) and is fixedly connected to a worm gear (12). The worm gear (12) is engaged with a worm (13). The worm (13) is connected to a driving motor (14) through a coupling. The spring hinge (15) is fixedly connected to a group of symmetrically arranged traction wires (16) near the end of the flexible LED screen. The traction wires (16) pass through the rotating drum (6) and extend into the rotating drum (6). The rotating drum (6) ) is provided with a winding drum (18) wound around the traction wire (16), the winding drum (18) is fixedly connected to a mounting shaft (19), the mounting shaft (19) is rotatably connected to an annular mounting plate (23) fixedly connected to the inner wall of the rotating drum (6), a passive gear (20) is sleeved and fixed on the lower part of the mounting shaft (19), the passive gear (20) is meshed with a transmission gear ring (21) rotatably connected to the annular mounting plate (23), and the inner side of the transmission gear ring (21) is meshed with an upper ratchet gear (22) sleeved and fixed to the rotating shaft (11).

2. A multi-form LED display screen according to claim 1, characterized in that: The rotating drum (6) is a hollow cylinder with openings at both ends. The clamping ring (8) is a circular ring fixedly connected to the inner wall of the rotating drum (6) and having a horizontal T-shaped cross section. The lower part of the suspension frame (7) is provided with an annular groove that cooperates with the clamping ring (8).

3. The multi-form LED display screen according to claim 1, characterized in that: The plurality of display screen assemblies stacked from top to bottom include a plurality of suspension frames (7) distributed in a spiral and equidistant manner, and the number of the suspension frames (7) corresponds to the number of the rotating drums (6).

4. The multi-mode LED display screen according to claim 1, characterized in that: The driving motor (14) is sleeved with an upper cover (24) fixedly connected to the mounting top plate (3).

5. The multi-mode LED display screen according to claim 1, characterized in that: The lower ratchet gear (10) comprises a rotating disk (1001) sleeved and fixed with the rotating shaft (11), a gear sleeve (1002) sleeved on the outside of the rotating disk (1001) and rotatably connected to the rotating disk (1001), and a pawl (1003) mounted on the rotating disk (1001) and engaged with the gear sleeve (1002), wherein the inner wall of the gear sleeve (1002) is provided with a pawl groove matched with the pawl (1003); the upper ratchet gear (22) is centrally symmetrical with the lower ratchet gear (10).

6. The multi-mode LED display screen according to claim 1, characterized in that: The annular mounting plate (23) is an annular plate fixedly connected to the inner wall of the rotating drum (6); the transmission gear ring (21) is a double-sided gear ring; and the annular mounting plate (23) is provided with an annular rail for the transmission gear ring (21) to rotate.

7. The multi-mode LED display screen according to claim 1, characterized in that: The spring hinge (15) comprises a plurality of groups of connecting pieces that abut against each other and are arranged horizontally, and adjacent connecting pieces are hinged via hinge shafts, and the hinge shafts are sleeved with torsion springs that abut against the connecting pieces on both sides.

8. The multi-mode LED display screen according to claim 1, characterized in that: A guide tube (17) sleeved on the outside of the traction wire (16) is fixedly connected to the inner side of the rotating drum (6), and the guide tube (17) is an arc-shaped hollow tube.

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