Multi-layer magnetic type small-spacing LED display screen

Abstract

The utility model discloses a multi-layer magnetic type small spacing LED display screen, which comprises a back plate and an LED display screen body connected with the back surface of the back plate through a magnetic plug-in structure, the magnetic plug-in structure comprises C port positioning blocks arranged at the top end and the two sides of the bottom end of the back plate, and magnetic blocks fixed at the corners of the back surface of the LED display screen body, the C-opening positioning block and the magnetic attraction block are connected in an inserted mode, and hollow shells are fixed to the two ends of the back face of the LED display screen body. According to the LED display screen, under the double guarantee of the magnetic attraction opposite-inserting structure, the lead screw bidirectional pushing structure and the locking mechanism of the inserting piece, even under the action of external force such as vibration and pushing collision, connection between the LED display screen body and the back plate can still be kept stable, and potential safety hazards caused by connection looseness are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display screens, in particular to a multi-layer magnetic suction type small-pitch LED display screen. Background Art

[0002] The magnetically assembled LED display is an innovative way to install and maintain LED displays. It is mainly suitable for indoor high-definition LED displays. The magnetic LED display is mainly composed of LED modules, rear covers, magnets and structural frames. The LED module is the core part of the display and is responsible for the display of images and videos. The rear cover is used to protect the back of the module to prevent dust and moisture from entering. The magnet is the key to achieving magnetic installation of the module and is usually installed on the back or rear cover of the LED module. The structural frame provides support for the entire display to ensure its stability. It uses magnetic force to directly adsorb the LED module to the mounting structure at the back, eliminating the traditional installation method of screws or hooks.

[0003] For example, the multi-layer magnetic front-maintained small-pitch LED display disclosed in the authorization announcement number CN205451703U includes a planar array drive board containing light-emitting diodes, and the planar array drive board is provided with spaced and fixed pads around it. The planar array drive board is fixedly connected to a first mounting plate of a central fixed iron plate to form a module, and the module and the second mounting plate are magnetically attracted to form an outer magnetic structure, and the second mounting plate and a box or a mounting component are magnetically attracted to form an inner magnetic structure, etc. Since the magnetic force of the outer magnetic structure is smaller than that of the inner magnetic structure, when the module needs to be repaired, the outer magnetic structure is connected to the inner magnetic structure. The module with smaller magnetism can be sucked out through the module-specific suction cup. If there is a problem with the internal system, the second mounting plate with larger magnetism can be taken out as a whole using tools or hand power to carry out front maintenance. However, this technical solution mainly relies on the magnetic structure to connect the display screen and the mounting plate. If the entire mounting back frame shakes back and forth, the magnetic structure will be affected, resulting in failure of the magnetic attraction between the display screen and the mounting plate, and then causing the two to separate. At this time, the LED module may fall off, which poses a serious safety hazard to on-site staff and passers-by. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-layer magnetic small-pitch LED display screen. The LED display screen body and the back panel adopt a magnetic plug-in structure as the connection basis, and utilize a screw rod bidirectional pushing structure and a plug-in piece to lock the magnetic plug-in structure to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-layer magnetic small-pitch LED display screen, comprising a back panel and an LED display screen body connected to the back of the back panel by a magnetic plug-in structure, the magnetic plug-in structure comprising C-port positioning blocks installed on both sides of the top and bottom of the back panel, and also comprising magnetic blocks fixed at the corners of the back of the LED display screen body, the C-port positioning blocks and the magnetic blocks are plugged into each other, and a hollow shell is fixed at both ends of the back of the LED display screen body, a screw rod bidirectional push structure is installed inside the hollow shell, and two movable ends of the screw rod bidirectional push structure are installed with plug-ins, one end of the plug-in extends to the outside of the hollow shell and is plugged into the C-port positioning block and the magnetic block, and a rotating drive member that drives the screw rod bidirectional push structure to work is installed on one side of the top of the hollow shell.

[0006] Preferably, a rectangular slot one and a rectangular slot two are respectively provided on the outer wall of one side of the C-port positioning block and the magnetic suction block, the projection shapes of the rectangular slot one and the rectangular slot two overlap with each other, and the rectangular slot one and the rectangular slot two are for inserting the plug.

[0007] Preferably, a control box is arranged on the back of the LED display screen body, a hollow portion for the control box to pass through is arranged inside the back plate, and positioning holes are provided on both sides of the back plate surface.

[0008] Preferably, a first side baffle and a second side baffle are respectively fixed on the two side outer walls of the back panel, a magnetic strip is fixed on the outer wall of the second side baffle away from the back panel, and a groove which is plugged into the magnetic strip is provided on the outer wall of the first side baffle away from the back panel.

[0009] Preferably, a positioning pin is provided on the outer wall of one side of the magnetic attraction strip, and a countersunk hole which is plugged into the positioning pin is provided on the outer wall of one side of the first side baffle strip.

[0010] Preferably, a protruding block is fixed to the top end of each of the first side baffle and the second side baffle, and an inner groove is provided at the bottom end of each of the first side baffle and the second side baffle.

[0011] Preferably, the rotary drive member includes a knob rotatably mounted on the top end of the hollow shell, and a bevel gear transmission structure mounted on the bottom end of the knob for driving the screw rod bidirectional displacement structure to work.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the multi-layer magnetic small-pitch LED display screen utilizes an insert to lock the magnetic insertion structure to prevent the C-port positioning block and the magnetic block from separating. The display screen is doubly protected by the magnetic insertion structure, the screw rod bidirectional pushing structure, and the locking mechanism of the insert. Even under the action of external forces, such as vibration, pushing, etc., the connection between the LED display screen body and the back panel can still remain stable, which greatly reduces the safety hazards caused by loose connections and ensures long-term stable operation of the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the back panel and the LED display screen body of the utility model in a separated state;

[0015] Figure 3 It is a rear cross-sectional structural diagram of the hollow shell of the utility model;

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the back plate of the utility model;

[0017] Figure 5 It is a schematic diagram of the three-dimensional structure of the utility model in a spliced ​​state;

[0018] In the figure: 1, back plate; 101, positioning hole; 102, hollow part; 2, LED display screen body; 201, control box; 3, first side baffle; 4, second side baffle; 5, magnetic strip; 501, positioning pin; 6, C-port positioning block; 601, rectangular slot one; 7, magnetic block; 701, rectangular slot two; 8, hollow shell; 9, knob; 10, insert; 11, bevel gear transmission structure; 12, screw rod two-way push structure; 13, raised block; 14, inner groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-5 The utility model provides an embodiment: a multi-layer magnetic small-pitch LED display screen, comprising a back plate 1 and an LED display screen body 2 connected to the back of the back plate 1 by a magnetic plug-in structure;

[0021] The magnetic plug-in structure includes C-port positioning blocks 6 installed on both sides of the top and bottom of the back plate 1, and also includes magnetic blocks 7 fixed at the corners of the back of the LED display screen body 2. The C-port positioning blocks 6 and the magnetic blocks 7 are plugged into each other. After the back plate 1 and the LED display screen body 2 are docked, the magnetic blocks 7 are inserted into the inside of the C-port positioning blocks 6. The magnetic force ensures that the LED display screen body 2 is firmly adsorbed on the back plate 1. A control box 201 is provided on the back of the LED display screen body 2. A hollow portion 102 for the control box 201 to pass through is provided inside the back plate 1. Positioning holes 101 are provided on both sides of the surface of the back plate 1.

[0022] A hollow shell 8 is fixed at both ends of the back of the LED display body 2, a screw bidirectional push structure 12 is installed inside the hollow shell 8, and two movable ends of the screw bidirectional push structure 12 are installed with plugs 10, one end of the plug 10 penetrates the outside of the hollow shell 8 and is plugged with the C-port positioning block 6 and the magnetic suction block 7, and a rotating driving member that drives the screw bidirectional push structure 12 to work is installed on one side of the top of the hollow shell 8;

[0023] A rectangular slot 1 601 and a rectangular slot 2 701 are respectively provided on the outer wall of one side of the C-port positioning block 6 and the magnetic attraction block 7. The projection shapes of the rectangular slot 1 601 and the rectangular slot 2 701 overlap with each other. The rectangular slot 1 601 and the rectangular slot 2 701 are for inserting the insert 10.

[0024] The rotary drive member includes a knob 9 rotatably mounted on the top of the hollow shell 8, and a bevel gear transmission structure 11 installed at the bottom of the knob 9 for driving the screw rod bidirectional push structure 12 to work. The staff manually rotates the knob 9, so that the knob 9 drives the screw rod bidirectional push structure 12 to work through the bevel gear transmission structure 11, and then the screw rod bidirectional push structure 12 drives the insert 10 to move horizontally until the end of the insert 10 is inserted into the rectangular slot 1 601 and the rectangular slot 2 701. The final stable fixation is completed by the screw rod pushing and the locking of the insert 10. The staff can easily unlock the insert 10 and the screw rod bidirectional push structure 12, and use the convenience of magnetic attraction to quickly disassemble the LED display body 2, which simplifies the maintenance process and reduces the maintenance cost.

[0025] A first side stopper 3 and a second side stopper 4 are fixed to the outer walls of both sides of the back plate 1, a magnetic strip 5 is fixed to the outer wall of the second side stopper 4 away from the back plate 1, a groove plugged with the magnetic strip 5 is provided on the outer wall of the first side stopper 3 away from the back plate 1, a positioning pin 501 is provided on the outer wall of one side of the magnetic strip 5, a countersunk hole plugged with the positioning pin 501 is provided on the outer wall of one side of the first side stopper 3, and a plurality of back plates 1 and LED display screen bodies 2 are connected to form an LED module. When the LED modules are connected in sequence in the horizontal direction, the outer walls of two adjacent back plates 1 are magnetically connected through the magnetic strip 5 and the groove, and the positioning pin 501 is inserted into the through hole on the outer wall of the first side stopper 3, so that the LED module is extended and arranged in the horizontal direction;

[0026] The top ends of the first side baffle 3 and the second side baffle 4 are both fixed with a protruding block 13, and the bottom ends of the first side baffle 3 and the second side baffle 4 are provided with an inner groove 14. When the LED modules are connected on a vertical plane, two adjacent LED modules are plugged in through the protruding block 13 and the inner groove 14. This structural design supports modular assembly, so that the LED display screen has higher flexibility in design and installation, and the size and shape of the display screen can be adjusted as needed to adapt to different installation environments and visual requirements.

[0027] When the embodiment of the present application is used, the staff first takes out the LED display screen body 2 and the back plate 1 to be connected. At this time, the corner position of the back of the LED display screen body 2 is preliminarily connected through the magnetic plug-in structure formed by the C-port positioning block 6 and the magnetic block 7, and the control box 201 completely passes through the hollow part 102. After the LED display screen body 2 and the back plate 1 are preliminarily connected through the magnetic plug-in structure, the staff manually turns the knob 9 again, and the knob 9 drives the screw rod bidirectional push structure 12 to move through the bevel gear transmission structure 11, and the screw rod bidirectional push structure 12 drives the same The two plugs 10 on the horizontal line move away from each other until the plugs 10 are inserted into the magnetic plug-in structure, and the plugs 10 are used to lock the magnetic plug-in structure to prevent the C-port positioning block 6 and the magnetic block 7 from separating. The display screen is doubly protected by the magnetic plug-in structure, the screw rod two-way sliding structure 12, and the locking mechanism of the plugs 10. Even under the action of external forces such as vibration, pushing, etc., the connection between the LED display screen body 2 and the back panel 1 can still remain stable, which greatly reduces the safety hazards caused by loose connections, ensures that the display screen operates stably for a long time, and avoids personal injury or equipment damage caused by accidental falling off.

Claims

1. A multi-layer magnetic small-pitch LED display, characterized by: The invention comprises a back plate (1) and an LED display screen body (2) connected to the back of the back plate (1) by a magnetic plug-in structure, wherein the magnetic plug-in structure comprises C-port positioning blocks (6) mounted on both sides of the top and bottom of the back plate (1), and also comprises magnetic blocks (7) fixed at the corner positions of the back of the LED display screen body (2), wherein the C-port positioning blocks (6) and the magnetic blocks (7) are plugged into each other, and a hollow shell (8) is fixed at both ends of the back of the LED display screen body (2), a screw rod bidirectional push structure (12) is installed inside the hollow shell (8), and two movable ends of the screw rod bidirectional push structure (12) are installed with inserts (10), one end of the inserts (10) penetrates the outside of the hollow shell (8) and is plugged into the C-port positioning blocks (6) and the magnetic blocks (7), and a rotating driving member for driving the screw rod bidirectional push structure (12) to work is installed on one side of the top of the hollow shell (8).

2. A multi-layer magnetic small-pitch LED display according to claim 1, characterized in that: A rectangular slot 1 (601) and a rectangular slot 2 (701) are respectively provided on one side outer wall of the C-port positioning block (6) and the magnetic attraction block (7), the projection shapes of the rectangular slot 1 (601) and the rectangular slot 2 (701) overlap with each other, and the rectangular slot 1 (601) and the rectangular slot 2 (701) are used for inserting the insert (10).

3. The multi-layer magnetic small-pitch LED display according to claim 1, characterized in that: A control box (201) is arranged on the back of the LED display screen body (2), a hollow portion (102) for the control box (201) to pass through is arranged inside the back plate (1), and positioning holes (101) are provided on both sides of the surface of the back plate (1).

4. The multi-layer magnetic small-pitch LED display according to claim 1, characterized in that: A first side baffle (3) and a second side baffle (4) are respectively fixed on the outer walls on both sides of the back plate (1); a magnetic attraction strip (5) is fixed on the outer wall of the second side baffle (4) on the side away from the back plate (1); and a groove for interlocking with the magnetic attraction strip (5) is provided on the outer wall of the first side baffle (3) on the side away from the back plate (1).

5. The multi-layer magnetic small-pitch LED display according to claim 4, characterized in that: A positioning pin (501) is provided on the outer wall of one side of the magnetic attraction strip (5), and a countersunk hole which is plugged into the positioning pin (501) is provided on the outer wall of one side of the first side blocking strip (3).

6. The multi-layer magnetic small-pitch LED display according to claim 4, characterized in that: The top ends of the first side baffle (3) and the second side baffle (4) are both fixed with protruding blocks (13), and the bottom ends of the first side baffle (3) and the second side baffle (4) are provided with inner grooves (14).

7. The multi-layer magnetic small-pitch LED display according to claim 1, characterized in that: The rotary drive member comprises a knob (9) rotatably mounted on the top end of the hollow shell (8), and a bevel gear transmission structure (11) mounted on the bottom end of the knob (9) for driving a screw rod bidirectional displacement structure (12) to work.

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