Modularized three-dimensional LED display splicing device

Abstract

The utility model relates to an LED display device, and particularly discloses a modularized three-dimensional LED display splicing device which comprises a plurality of display modules and an adjustable support device. Wherein neodymium iron boron magnets are embedded into the splicing surfaces of the display modules to realize magnetic attraction pre-positioning, and fixing pins are arranged for reinforcement; a control device and a detachable fixing base are integrated on the back of the module, and the fixing base comprises a spherical hinge opening used for being connected with the support and conducting a power source and a signal line. The adjustable support device comprises a base, a longitudinal support and a telescopic transverse support, a ball head is arranged at the front end of the transverse support and matched with a ball hinge opening of the display module fixing base to achieve vertical rotation, and the base is provided with a limiting device and can fix the display device in a multi-angle mode. The hollow design of the bracket hides the flat cable and prevents the cable from being exposed. By means of magnetic attraction positioning, mechanical reinforcement and multi-gear angle adjustment, quick installation and stable operation of display devices in various forms such as planes, curved surfaces and three-dimensional display devices are achieved, and the display device is suitable for scenes such as advertisements, stages and exhibitions.

Description

Technical Field

[0001] This utility model relates to the field of LED display device technology, specifically a modular three-dimensional LED display splicing device. Background Technology

[0002] As advertising displays, stage performances, exhibitions and other scenarios demand more visual effects, LED display devices are evolving from traditional fixed flat screens to flexible, three-dimensional, and curved forms.

[0003] However, existing LED display devices still have the following problems in practical applications: First, traditional LED screens are mostly flat structures of fixed size. If they need to be spliced ​​into three-dimensional shapes such as curved surfaces, L-shapes, or cubes, they need to be fixed by complex brackets, resulting in poor adaptability. Second, the bracket structure of conventional modular splicing devices is mostly a rigid design, which limits the adjustment of the display module angle and makes it difficult to flexibly adjust to tilted, curved, or other postures according to the needs of the scene, thus failing to meet the needs of an immersive visual experience. Third, the cables of the spliced ​​display devices are mostly exposed, which not only affects the aesthetics but also makes them prone to poor contact or malfunction due to pulling, dust accumulation, etc.

[0004] Therefore, there is an urgent need for a modular three-dimensional LED display device that can achieve flexible splicing of multiple forms (planar, curved, and three-dimensional), convenient installation, hidden cables, and adjustable angles, in order to solve the problems of poor adaptability, low installation efficiency, exposed cables, and inflexible angle adjustment in existing technologies. Utility Model Content

[0005] To address the problems of poor adaptability, low installation efficiency, exposed cables, and inflexible angle adjustment in traditional LED display devices mentioned above, this utility model provides a modular three-dimensional LED display splicing device. Through magnetic positioning, mechanical reinforcement, and an adjustable bracket device, it enables rapid installation and flexible adjustment of display devices in various forms, such as planar, curved, and three-dimensional displays, thereby improving the adaptability and ease of use of the display devices.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A modular three-dimensional LED display splicing device includes several display modules and an adjustable support device. Each display module includes a display surface, a splicing surface, and a back panel. The splicing surface specifically comprises the four sides of the display module (top, bottom, left, and right), and is equipped with a magnetic positioning structure and a mechanical reinforcement structure. The back panel includes a control device and a detachable mounting base, which has a ball joint interface. The adjustable support device includes a base, a longitudinal support, and a transverse support. The base has several limiters. The longitudinal support is fixed to the base, and the transverse support is movably connected to the longitudinal support. The front end of the transverse support has a ball head that mates with the ball joint interface. The display modules are connected to the ball head via the ball joint interface, forming a freely rotatable connection structure.

[0008] Specifically, the display module includes at least one of a flat display screen, a right-angle display screen, or a curved display screen.

[0009] Specifically, the magnetic positioning structure includes several neodymium iron boron magnets embedded in the splicing surface. The neodymium iron boron magnets are arranged in a counterclockwise alternating pattern along the splicing surface with N and S poles, so as to ensure that adjacent display modules are not subject to the repulsion of the same pole, thereby achieving the initial positioning and fixation between the modules.

[0010] Specifically, the mechanical reinforcement structure includes a reinforced internal thread cylindrical pin disposed on two adjacent splicing surfaces of the display module and a cylindrical pin hole aligning the two splicing surfaces. The outer section of the cylindrical pin hole is provided with a thread. The internal thread cylindrical pin can be rotated into the pin hole a certain distance by the knob on the back of the display module to engage the thread, thereby achieving further mechanical reinforcement after the display module is magnetically positioned.

[0011] Specifically, the mounting base is a split structure, with the two parts connected to each other and to the display module by bolts; the mounting base has an open ball joint interface for connecting the ball head of the horizontal support to achieve free rotation within a certain angle, and for conducting the power line and signal line of the control device; the ball joint interface is fitted with a rubber friction pad to increase rotational damping, and an elastic sealing ring is provided at the edge of the interface for dust and water protection.

[0012] Specifically, the transverse support is a telescopic structure, including an outer tube and an inner tube nested together. The outer tube is provided with an elastic buckle, and the inner tube is provided with a corresponding positioning hole for adjusting and locking the length of the transverse support.

[0013] Specifically, both the longitudinal and transverse supports are hollow structures, and their sides can be opened through sliding covers with sealing strips to hide the ribbon cables; the ball head at the front end of the transverse support is provided with a radial opening to lead out the ribbon cables hidden inside the support.

[0014] Specifically, the limiter is connected to the base via a cross-shaped universal joint, thereby ensuring that the display module can still successfully match the limiter after rotating freely at a certain angle. The limiter is equipped with an internally threaded cylindrical pin identical to that of the display module. The limiter and the internally threaded cylindrical pin together lock the rotation angle of the display module. The rotation angle is not greater than the maximum angle that ensures smooth cable connection of the ball joint opening structure of the display module.

[0015] In summary, the beneficial technical effects of this utility model are as follows:

[0016] 1. Strong adaptability to multiple forms: The ball joint connection structure supports various display modules such as flat screens, right-angle screens, and curved screens. Combined with the adjustable bracket device, it can be flexibly spliced ​​into three-dimensional forms such as plane, L-shape, arc, and cube.

[0017] 2. Flexible and stable angle adjustment: The display module is connected to the ball joint of the bracket through a ball joint interface, which can rotate freely within a certain angle range. The base limiting device cooperates with the limiter connected by the universal joint and the fixing pin to lock any target angle. Combined with the telescopic bracket, it can meet the tilt and arc display needs of different scenarios and solve the problem of limited angle adjustment of traditional rigid brackets.

[0018] 3. Easy and high-precision installation: The splicing surfaces are pre-aligned by counterclockwise N / S pole alternating neodymium iron boron magnets to avoid repulsion between like poles. Combined with the mechanical reinforcement of the internal threaded cylindrical pin and the threaded pin hole, installation only requires two steps: "magnetic positioning + knob reinforcement". The operation is simple and the splicing gap is uniform, improving installation efficiency and display effect.

[0019] 4. Concealed, aesthetically pleasing, and reliable cable management: The longitudinal and transverse supports adopt a hollow structure, combined with radial openings in the ball joint and ball joint interface openings in the mounting base. All cables are concealed inside the supports, avoiding exposure, pulling, or dust accumulation, thus improving the device's aesthetics and signal stability. Attached Figure Description

[0020] Figure 1 This is an overview diagram of the overall structure of this utility model;

[0021] Figure 2 This is a left-side view of the display module of this utility model;

[0022] Figure 3 This is a right-side view of the display module of this utility model;

[0023] Figure 4 This is a front view of the back mounting bracket of the display module of this utility model;

[0024] Figure 5 This is a cross-sectional view of the transverse support of this utility model;

[0025] Reference numerals: 1. Display module; 10. Display surface; 11. Splicing surface; 110. Neodymium iron boron magnet; 111. Internally threaded cylindrical pin; 112. Cylindrical pin hole; 12. Back assembly; 121. Upper part of the fixing base; 122. Lower part of the fixing base; 123. Ball joint interface; 2. Adjustable bracket assembly; 21. Horizontal bracket; 210. Ball head; 22. Vertical bracket; 23. Base; 231. Limiter. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model clearer and easier to understand, the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] Example

[0028] The present invention provides a modular three-dimensional LED display splicing device comprising several display modules 1 and an adjustable support device 2.

[0029] like Figure 1 As shown, several display modules 1 are connected to each other through splicing surface 11. The back device 12 of the display module 1 is connected to the horizontal support 21. The horizontal support 21 is connected to the vertical support 22. The vertical support 22 is connected to the support base 23. At the same time, the limiter 231 on the base 23 is connected to the splicing surface 11 of the display module 1.

[0030] Display module 1 is the core display unit of the device, which includes a display surface 10, a splicing surface 11, and a back device 12. The display surface 10 can be selected as a straight surface, right angle, or curved surface according to the three-dimensional display requirements. For example, a right angle display screen can be used to construct the corner of a cube, and a curved surface display screen can be used to construct curved shapes such as arcs or spheres. Different types of display modules 1 can be combined to form diverse three-dimensional display arrays.

[0031] like Figure 2 , Figure 3 As shown, the splicing surface 11 consists of the four sides of the display module 1, which are the top, bottom, left, and right. Each splicing surface 11 integrates a magnetic positioning structure and a mechanical reinforcement structure to achieve rapid positioning and firm connection between modules.

[0032] The magnetic positioning structure uses several neodymium iron boron magnets 110 embedded in the splicing surface 11. The magnets are arranged in a counterclockwise alternating pattern of N and S poles along the edge of the splicing surface 11. When the splicing surfaces 11 of two adjacent display modules 1 come into contact, the attraction generated by the magnets of opposite poles can quickly align the modules, avoiding misalignment caused by the repulsion of like poles, and realizing the initial positioning and fixation between modules.

[0033] The mechanical reinforcement structure enhances the connection stability after magnetic positioning. It includes reinforced internally threaded cylindrical pins 111 located on two adjacent splicing surfaces 11 of the display module 1, and corresponding cylindrical pin holes 112 located on the alignment splicing surfaces 11. The outer section of the cylindrical pin hole 112 is machined with threads matching the internally threaded cylindrical pin 111, while the inner section is a smooth hole. After magnetic positioning, the internally threaded cylindrical pin 111 is rotated using a knob on the back of the display module 1, first inserting it into the smooth section of the cylindrical pin hole 112 on the alignment splicing surface. After full insertion, rotation continues, causing the internally threaded cylindrical pin 111 and the threaded section of the cylindrical pin hole 112 to engage, thus firmly connecting the adjacent display modules 1 and effectively preventing the magnetic structure from loosening due to vibration or external force.

[0034] like Figure 4 As shown, the back panel 12 of the display module 1 integrates a control device and a detachable mounting base. The control device includes an LED driver circuit, a signal receiving module, and a power supply module, used to receive external display signals and drive the display surface 10 to emit light, thereby realizing the image display function. The detachable mounting base has an upper and lower split structure, which facilitates connection with the ball joint 210 during installation. The upper split 121 and the lower split 122 of the mounting base are fixed together by bolts, and the whole assembly is connected to the back of the display module 1 by bolts, which facilitates quick disassembly during subsequent maintenance or replacement of the display module 1.

[0035] An open ball joint interface 123 is provided in the middle of the fixed base for connecting with the ball head 210 of the transverse bracket 21. A rubber friction pad is attached inside the ball joint interface 123 to increase the damping during the rotation of the ball head 210, preventing the display module 1 from rotating arbitrarily due to its own weight. An elastic sealing ring is provided at the edge of the interface to effectively prevent dust and moisture from entering the ball joint gap, ensuring the service life of the connection structure. When the ball head 210 is inserted into the ball joint interface 123, the power and signal lines of the control device can be connected through the opening, realizing the circuit connection between the display module 1 and the bracket device.

[0036] The adjustable support device 2 is used to support the display module 1 and adjust its spatial position, and includes a base 23, a vertical support 22, and a horizontal support 21. The base 23 is a heavy-duty metal structure that is placed on the ground or a support surface to provide stable bottom support. The vertical support 22 is vertically fixed to the top of the base 23 and adopts a hollow square tube structure that can accommodate ribbon cables inside; the side wall of the vertical support 22 has several connection ports for connecting to the horizontal support 21.

[0037] The rear end of the horizontal bracket 21 is connected to the vertical bracket 22. Adjusting its connection position on the vertical bracket 22 changes the height of the display module 1. After tightening the locking bolts, the horizontal bracket 21 and the vertical bracket 22 are fixed. The horizontal bracket 21 is a telescopic nested structure, including an outer tube and an inner tube. The side wall of the outer tube is provided with elastic buckles, and the side wall of the inner tube is provided with several positioning holes. When adjusting, the inner tube is pulled to the required length, and the elastic buckles engage with the corresponding positioning holes to lock it in place. This facilitates adjustment of the front-to-back position and tilt of the display module 1 to adapt to different three-dimensional modeling requirements.

[0038] Both the longitudinal support 22 and the transverse support 21 are hollow structures, with sliding covers with sealing strips on their sides. Opening the sliding covers allows power cables, signal cables, and other wiring to be placed inside the support, thus hiding the wiring and keeping the device's appearance neat. The ball head 210 at the front end of the transverse support 21 has a radial opening, through which the wiring inside the support is led out and connected to the ball joint interface 123 of the fixed base, thereby connecting to the control device.

[0039] Display module 1 is connected to ball joint 210 of horizontal support 21 via ball joint interface 123 of fixed base. Ball joint 210 can rotate freely within a certain angle range within ball joint interface 123. Combined with the telescopic function of horizontal support 21, the spatial posture adjustment of display module 1 within a certain angle range (such as tilting up and down, rotating left and right) can be realized to meet the angle requirements of three-dimensional display. To prevent display module 1 from moving arbitrarily after rotation, several limiters 231 are provided on the top of base 23. Each limiter 231 is connected to base 23 via cross-axis universal joint. Cross-axis universal joint allows limiter 231 to rotate, ensuring that after display module 1 is rotated to the required angle, limiter 231 can be adjusted in direction via universal joint to align with the bottom splicing surface 11 of display module 1.

[0040] The limiter 231 has an internally threaded cylindrical pin 111, which is the same as the mechanical reinforcement structure of the display module 1. After the display module 1 is adjusted to the required angle, the knob on the limiter 231 is rotated to screw the internally threaded cylindrical pin 111 into the cylindrical pin hole 112 on the bottom splicing surface 11 of the display module 1, thereby fixing the rotation angle of the display module 1. To ensure smooth wiring connection within the ball joint interface 123, the rotation angle of the display module 1 must be controlled to not exceed the maximum angle that ensures the wiring is not excessively stretched or bent.

[0041] Therefore, this utility model provides a modular three-dimensional LED display splicing device that achieves rapid assembly and secure connection of display modules through a splicing method combining magnetic positioning and mechanical reinforcement; it enables spatial position and angle adjustment of the display modules through an adjustable bracket device and ball joint connection structure; and it ensures the stability of the adjusted angle through a limiting device. This device is flexible in structure, easy to assemble, and suitable for various three-dimensional LED display scenarios.

[0042] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. The above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit it. Although the present utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present utility model without departing from the spirit and scope of the technical solutions of the present utility model, and all such modifications or substitutions should be covered within the scope of the claims of the present utility model.

Claims

1. A modular three-dimensional LED display splicing device, characterized in that: The device includes several display modules and an adjustable support assembly. Each display module comprises a display surface, a splicing surface, and a back panel. The splicing surface specifically comprises the four sides of the display module (top, bottom, left, and right), and is equipped with a magnetic positioning structure and a mechanical reinforcement structure. The back panel includes a control device and a detachable mounting base, which has a ball joint interface. The adjustable support assembly includes a base, a longitudinal support, and a transverse support. The base has several limiters, the longitudinal support is fixed to the base, and the transverse support is movably connected to the longitudinal support. The front end of the transverse support has a ball head that mates with the ball joint interface. The display modules are connected to the ball head via the ball joint interface, forming a freely rotatable connection structure.

2. The modular three-dimensional LED display splicing device according to claim 1, characterized in that: The display module includes at least one of a flat display screen, a right-angle display screen, or a curved display screen.

3. The modular three-dimensional LED display splicing device according to claim 1, characterized in that: The magnetic positioning structure includes several neodymium iron boron magnets embedded in the splicing surface, and the neodymium iron boron magnets are arranged along the splicing surface with the N pole and S pole alternating counterclockwise.

4. The modular three-dimensional LED display splicing device according to claim 1, characterized in that: The mechanical reinforcement structure includes a reinforcing internal thread cylindrical pin disposed on two adjacent splicing surfaces of the display module and a cylindrical pin hole aligning the two splicing surfaces. The outer section of the cylindrical pin hole is provided with threads. The internal thread cylindrical pin is rotated into the pin hole a certain distance by the knob on the back of the display module to engage the threads.

5. The modular three-dimensional LED display splicing device according to claim 1, characterized in that: The mounting base is a split structure, with the two parts connected to each other and to the display module by bolts; the mounting base has an open ball joint interface; the ball joint interface is fitted with a rubber friction plate, and an elastic sealing ring is provided at the edge of the interface for dust and water protection.

6. The modular three-dimensional LED display splicing device according to claim 1, characterized in that: The horizontal support is configured as a telescopic structure, including a nested outer tube and an inner tube. The outer tube is equipped with an elastic buckle, and the inner tube is equipped with a corresponding positioning hole.

7. The modular three-dimensional LED display splicing device according to claim 1, characterized in that: Both the longitudinal and transverse supports are hollow structures with sliding cover plates with sealing strips on the sides; the ball head at the front end of the transverse support has a radial opening.

8. The modular three-dimensional LED display splicing device according to claim 1, characterized in that: The limiter is connected to the base via a cross-shaped universal joint; the limiter is provided with an internally threaded cylindrical pin identical to that of the display module, and the limiter and the internally threaded cylindrical pin together lock the rotation angle of the display module.

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