CN218896442U - LED display device - Google Patents

Abstract

The present utility model provides an LED display device, comprising: the LED display units are arranged in an array, and the rear wall of each LED display unit is provided with a clamping groove; the leveling assembly is arranged at the rear side of the LED display unit and comprises a plurality of leveling pieces and a plurality of hanging frames fixedly arranged on the installation body, the upper end and the lower end of each LED display unit are respectively provided with the leveling pieces and the hanging frames, each leveling piece can be inserted into the corresponding LED display unit in a front-back moving mode, the rear wall of each leveling piece is provided with a first adjusting plane attached to the installation body, each LED display unit can be adjusted back-and-forth relative to the corresponding hanging frame, and each hanging frame is provided with a clamping hook which is clamped in a clamping groove in a one-to-one correspondence mode. Through the technical scheme that this application provided, can solve the front surface of LED display device among the correlation technique and can have the dislocation and make the not good problem of roughness of its front surface.

Description

LED display device

Technical Field

The utility model relates to the technical field of electronic products, in particular to an LED display device.

Background

An LED display unit is an electronic device for displaying information such as text, images, or video. With the development of LED technology, LED display units manufactured by taking LEDs as light sources are increasingly widely applied in life, so that the life of people is greatly enriched, and particularly, a large-size LED display device is formed by a plurality of LED display units.

In the related art, a plurality of LED display units are arranged and spliced in a certain shape to form an LED display device. Specifically, a plurality of LED display units are erected on a mounting bracket having a cross member and a side member, and then the mounting bracket is fixed on a mounting body.

However, with the above-described mounting manner, when adjusting the flatness of the LED display device, it is necessary for the operator to manually adjust the flatness of the adjacent LED display units according to his own experience and feel. However, since the manual adjustment is adopted, there is a slight misalignment of the front surface of the LED display device, so that the flatness of the front surface thereof is not optimal.

Disclosure of Invention

The utility model provides an LED display device, which solves the problem that the front surface of the LED display device in the related art is dislocated to cause poor flatness of the front surface.

The present utility model provides an LED display device, comprising: the LED display units are arranged in an array, and the rear wall of each LED display unit is provided with a clamping groove; the leveling assembly is arranged at the rear side of the LED display unit and comprises a plurality of leveling pieces and a plurality of hanging frames fixedly arranged on the installation body, the upper end and the lower end of each LED display unit are respectively provided with the leveling pieces and the hanging frames, each leveling piece can be inserted into the corresponding LED display unit in a front-back moving mode, the rear wall of each leveling piece is provided with a first adjusting plane attached to the installation body, each LED display unit can be adjusted back-and-forth relative to the corresponding hanging frame, and each hanging frame is provided with a clamping hook which is clamped in a clamping groove in a one-to-one correspondence mode.

Further, the leveling piece comprises a leveling knob, the first leveling surface is the rear surface of the leveling knob, a threaded hole is formed in the rear side of the LED display unit, and the leveling knob can be inserted into the threaded hole in a back-and-forth movable mode and is in threaded connection with the threaded hole, so that the leveling knob can be moved back-and-forth through rotating the leveling knob.

Further, the leveling assembly further comprises a plurality of adjusting screws, first ends of the adjusting screws are inserted into the corresponding LED display units in a back-and-forth movable mode, and second ends of the adjusting screws are abutted to the front surfaces of the corresponding hanging frames.

Further, the leveling assembly further comprises a plurality of leveling plates, each leveling plate is arranged at the joint of two adjacent LED display units, the front surface of each leveling plate forms a second leveling plane, and the rear surfaces of the two adjacent LED display units are attached to the corresponding second leveling planes.

Further, the LED display unit comprises a box body, an LED module arranged on the front side of the box body and a magnetic attraction component arranged between the box body and the LED module, wherein the clamping groove is formed in the rear wall of the box body, the magnetic attraction component comprises a first magnetic attraction piece arranged on the rear side of the LED module and a second magnetic attraction piece arranged on the front side of the box body, the first magnetic attraction piece and the second magnetic attraction piece are matched in surface-to-surface and are attracted mutually, a third adjusting plane is arranged on the box body, and the second magnetic attraction piece is attached to the third adjusting plane.

Further, the front side of box is provided with a plurality of supporting ribs, and the both sides of piece are inhaled to every second magnetism all correspond to be provided with the supporting rib, and the front surface of two supporting ribs forms the third together and transfers the plane, and the rear surface that the piece was inhaled to the second magnetism is laminated mutually with the third and transfers the plane.

Further, the box body comprises a cross beam and a longitudinal beam which are connected in sequence, and the cross beam and the longitudinal beam jointly enclose a square frame structure, wherein the end face of the cross beam is flush with the side wall of the longitudinal beam, and the end face of the longitudinal beam is flush with the side wall of the cross beam.

Further, a groove is formed in one of the longitudinal beam and the cross beam, the other of the longitudinal beam and the cross beam is embedded in the groove, and the size of the cross section of the cross beam along the opening direction of the groove is matched with the depth of the groove.

Further, the box body comprises a cross beam and a longitudinal beam which are connected in sequence, the cross beam and the longitudinal beam jointly enclose a square frame structure, and supporting ribs are arranged in the cross beam and the longitudinal beam.

Further, the hanging frame is provided with two clamping hooks, the two clamping hooks are respectively clamped in clamping grooves of the two adjacent LED display units, first ends of the two adjusting screws are respectively inserted into rear walls of the two adjacent LED display units, and second ends of the two adjusting screws are respectively abutted against the front surface of the hanging frame; each LED display unit corresponds to two hanging frames and two leveling pieces, the two hanging frames are respectively arranged at two corners of the upper end of the LED display unit, and the two leveling pieces are respectively arranged at two corners of the lower end of the LED display unit.

By applying the technical scheme of the utility model, the LED display device comprises a plurality of LED display units and leveling components, the hanging frame of the leveling components is fixedly arranged on the installation body, the hanging hooks of the hanging frame are clamped in the clamping grooves of the rear walls of the corresponding LED display units to hang the LED display units on the installation body, the front and rear positions of the LED display units are adjusted relative to the hanging frame, the first adjusting plane of the rear wall of the leveling piece is attached to the installation body, and the front and rear positions of the LED display units are adjusted through the leveling piece.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows a schematic structural diagram of an LED display device according to an embodiment of the present utility model;

FIG. 2 shows a partial enlarged view at A in FIG. 1;

fig. 3 is a schematic structural diagram of an LED display unit of the LED display device according to the embodiment of the present utility model;

fig. 4 shows a rear view of an LED display unit of the LED display device provided by the embodiment of the present utility model;

FIG. 5 shows a cross-sectional view at B-B in FIG. 4;

FIG. 6 shows a partial enlarged view at C in FIG. 5;

fig. 7 shows an exploded view of an LED display unit of the LED display device provided by the embodiment of the present utility model;

FIG. 8 shows a partial enlarged view at D in FIG. 7;

fig. 9 shows still another exploded view of an LED display unit of the LED display device provided by the embodiment of the present utility model;

fig. 10 shows an exploded view of an LED display device provided by an embodiment of the present utility model;

fig. 11 shows an exploded view of a hanger of an LED display device according to an embodiment of the present utility model.

Wherein the above figures include the following reference numerals:

1. a mounting body;

10. an LED display unit; 11. a clamping groove; 12. a threaded hole; 13. a case; 131. a support rib; 132. a cross beam; 133. a longitudinal beam; 134. a groove; 14. an LED module; 15. a third tuning plane; 16. a magnetic attraction component; 161. a first magnetic attraction member; 162. a second magnetic attraction member;

20. a leveling assembly; 21. a leveling member; 211. a first tuning plane; 212. leveling a knob; 22. a hanging frame; 221. a clamping hook; 23. adjusting a screw; 24. leveling plates; 241. a second tuning plane;

31. a frame body; 311. waist-shaped holes; 312. a bar-shaped hole; 33. a hanging plate; 331. a connection hole; 34. a connecting bolt;

40. a fixing member;

70. a power supply box; 80. a magnetic suction plate;

90. a connection assembly; 91. a transverse connecting screw; 92. a longitudinal connecting screw; 93. and (5) positioning pins.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 11, an embodiment of the present utility model provides an LED display device, which includes a plurality of LED display units 10 and a leveling assembly 20, the plurality of LED display units 10 are arranged in an array, and a rear wall of each LED display unit 10 is provided with a card slot 11; the leveling component 20 is arranged at the rear side of the LED display unit 10, the leveling component 20 comprises a plurality of leveling pieces 21 and a plurality of hanging frames 22 fixedly arranged on the installation body 1, the upper end and the lower end of each LED display unit 10 are respectively provided with the leveling pieces 21 and the hanging frames 22, wherein each leveling piece 21 can be inserted into the corresponding LED display unit 10 in a front-back movable mode, the rear wall of each leveling piece 21 is provided with a first adjusting plane 211 attached to the installation body 1, each LED display unit 10 can be adjusted front and back in a corresponding hanging frame 22, each hanging frame 22 is provided with a clamping hook 221, and the clamping hooks 221 are clamped in the clamping grooves 11 in a one-to-one correspondence mode.

By applying the technical scheme of the utility model, the LED display device comprises a plurality of LED display units 10 and leveling components 20, the hanging frame 22 of the leveling components 20 is fixedly arranged on the installation body 1, the hanging hooks 221 of the hanging frame 22 are clamped in the clamping grooves 11 of the rear wall of the corresponding LED display unit 10 to hang the LED display unit 10 on the installation body 1, the front and rear positions of the LED display units 10 are regulated relative to the hanging frame 22, the first regulating plane 211 of the rear wall of the leveling piece 21 is attached to the installation body 1, the front and rear positions of the LED display units 10 are regulated through the leveling piece 21, and as the leveling piece 21 and the hanging frame 22 are respectively arranged at the upper end and the lower end of the corresponding LED display unit 10, the upper end and the lower end of each LED display unit 10 can be regulated relative to the installation body 1, so that the purpose of regulating the flatness of the adjacent LED display units 10 is achieved, and the flatness of the whole LED display device is optimized.

The plurality of LED display units 10 are arranged in an array, which means that the plurality of LED display units 10 are arranged in a transverse direction and a longitudinal direction, and the plurality of LED display units 10 form a rectangular structure after being arranged.

In the present embodiment, the LED display device can be hung on the mounting body 1 by the hanging frame 22 on the one hand, and on the other hand, the front-rear positions of the hanging frame 22 and the mounting body 1 can be adjusted to adjust the flatness of the LED display device.

In the present embodiment, the hanger 22 is disposed at an upper end of the LED display unit, and the leveling knob 212 is disposed at a lower end of the LED display unit.

The hanging frame 22 includes a frame body 31, a hanging plate 33 and a connecting bolt 34, the hook 221 is disposed on the hanging plate 33, a strip hole 312 extending vertically is disposed on one of the frame body 31 and the hanging plate 33, a connecting hole 331 is disposed on the other of the frame body 31 and the hanging plate 33, and the connecting bolt 34 penetrates through the connecting hole 331 and the strip hole 312, so that the hanging plate 33 can move vertically relative to the frame body 31, and the vertical position of the LED display device can be adjusted.

In this embodiment, the hanger 22 is connected to the mounting body 1 by a fixing member 40, the fixing member 40 is an expansion bolt, and the frame body 31 is provided with a kidney-shaped hole 311 extending in the horizontal direction, so that the expansion bolt can move in the kidney-shaped hole 311 in the horizontal direction, and the horizontal position of the frame body 31 relative to the mounting body 1 is adjusted, so that the horizontal position of the box 13 relative to the mounting body 1 is adjusted.

The installation body 1 may be a wall body, or may be other supporting structures, such as a supporting frame, capable of fixing the hanging frame 22.

In the present embodiment, the connecting bolt 34 includes a screw and a nut screwed to the screw, and in order to secure the connection stability of the connecting bolt 34, a copper bush and a washer are provided between the screw and the nut to prevent the nut from loosening.

As shown in fig. 1 and 2, the leveling member 21 includes a leveling knob 212, the first leveling surface 211 is a rear surface of the leveling knob 212, the rear side of the LED display unit 10 is provided with a threaded hole 12, and the leveling knob 212 is inserted into the threaded hole 12 to be movable back and forth and is screw-coupled with the threaded hole 12 so as to be moved back and forth by rotating the leveling knob 212. By setting the leveling member 21 as the leveling knob 212, there is an advantage in that the structure is simple and adjustment is facilitated.

As shown in fig. 7 and 8, the leveling assembly 20 further includes a plurality of adjusting screws 23, wherein first ends of the plurality of adjusting screws 23 are respectively inserted into the corresponding LED display units 10 in a back-and-forth movable manner, and second ends of the plurality of adjusting screws 23 are respectively abutted against the front surfaces of the corresponding hanging frames 22. By adjusting the length of the adjusting screw 23 in the LED display unit 10, the front and rear positions of the LED display unit 10 relative to the mounting body 1 can be adjusted, and the adjusting screw has the advantages of simple adjusting structure and convenient adjustment.

As shown in fig. 1, 2 and 4, the leveling assembly 20 further includes a plurality of leveling plates 24, each leveling plate 24 is disposed at a junction of two adjacent LED display units 10, a front surface of each leveling plate 24 forms a second leveling plane 241, and rear surfaces of two adjacent LED display units 10 are attached to the corresponding second leveling planes 241. With the leveling plate 24, the second leveling plate 241 can be used to adjust the flatness of the butt joint of the two adjacent LED display units 10, so that the flatness adjustment effect of the two adjacent LED display units 10 is better.

Wherein, each leveling plate 24 is located at the butt joint of two LED display units 10, that is, each leveling plate 24 is located between two adjacent corners of the LED display units 10, that is, in the middle of the side edge of the LED display unit 10, and thus the flatness of the middle of two adjacent LED display units 10 can be adjusted by the second leveling plate 241.

Of course, two adjacent LED display units 10 may also be connected as one body by means of the leveling plate 24. Since the adjacent two LED display units 10 are connected as one body by the leveling plate 24, and the flatness of the middle portions of the adjacent two LED display units 10 is adjusted by the second leveling plate 241, slight misalignment due to thermal expansion and contraction of the case can be avoided.

In this embodiment, each LED display unit 10 corresponds to two suspension brackets 22 and two leveling members 21, the two suspension brackets 22 are respectively disposed at two corners of the upper end of the LED display unit 10, and the two leveling members 21 are respectively disposed at two corners of the lower end of the LED display unit 10. By adopting the structure, the front and back position adjustment of each corner of the LED display unit 10 can be realized, and further the uniformity of flatness of the corners of the LED display unit 10 can be realized.

Specifically, the hanging frame 22 has two hooks 221, the two hooks 221 are respectively clamped in the clamping grooves 11 of the two adjacent LED display units 10, the first ends of the two adjusting screws 23 are respectively inserted into the rear walls of the two adjacent LED display units 10, the second ends of the two adjusting screws 23 are respectively abutted against the front surfaces of the hanging frame 22, the hanging frame 22 with the structure can respectively adjust the front and rear positions of the two adjacent corners of the two adjacent LED display units 10 by using the two adjusting screws 23, and further adjust the flatness of the two corners, so that the uniformity of flatness can be realized at the adjacent corners of the two adjacent LED display units 10, and the phenomenon of edge warping can not occur.

It should be noted that, by arranging the hanging frame 22 or the leveling member 21 at the corner of the LED display unit 10, and arranging the leveling plate 24 between two adjacent corners, the adjustment of the flatness can be achieved on the entire adjacent sides of the two adjacent LED display units 10, so that the flatness of the two adjacent LED display units 10 is better, and the LED display device has better flatness.

In the present embodiment, in order to ensure the flatness of the second leveling surface 241 of the leveling plate 24, the leveling plate 24 cannot be made excessively large, and two leveling plates 24 are provided between the two suspension brackets 22, between the two leveling members 21, and between the suspension brackets 22 and the leveling members 21 on the same side. With the above-described structure, the length of the leveling plate 24 can be reduced.

As shown in fig. 3 to 6, the LED display unit 10 includes a case 13, an LED module 14 disposed at a front side of the case 13, and a magnetic attraction assembly 16 disposed between the case 13 and the LED module 14, wherein the card slot 11 is disposed at a rear wall of the case 13, the magnetic attraction assembly 16 includes a first magnetic attraction member 161 disposed at a rear side of the LED module 14, and a second magnetic attraction member 162 disposed at a front side of the case 13, the first magnetic attraction member 161 and the second magnetic attraction member 162 are in surface-to-surface fit and attracted to each other, a third alignment surface 15 is disposed on the case 13, and the second magnetic attraction member 162 is attached to the third alignment surface 15. The third adjusting surface 15 is attached to the second magnetic attraction piece 162, so that the installation precision of the second magnetic attraction piece 162 can be guaranteed, and the LED module 14 has higher flatness through the surface matching of the first magnetic attraction piece 161 and the second magnetic attraction piece 162. And, only need guarantee the machining precision of the mating surface of first magnetism piece 161 and second magnetism piece 162 of inhaling, can guarantee the roughness of module.

In this embodiment, the LED module 14 includes a plurality of LED light panels arranged in an array, and the LED light panels are connected to the case 13 through the magnetic assembly 16. The magnetic component 16 is adopted to connect the box 13 and the LED module 14, and the connecting structure is simple and is convenient to operate.

The third tuning plane 15 may be disposed on the case 13, or the third tuning plane 15 may be disposed on the second magnetic attraction member 162, or a structure on the case 13 and a structure on the second magnetic attraction member 162 together form the third tuning plane 15.

In this embodiment, the LED display unit further includes a power box 70 electrically connected to the LED module 14 and disposed at the rear side of the case 13, and a magnetic attraction plate 80 fixedly disposed on the mounting body 1, where the power box 70 is magnetically attracted to the magnetic attraction plate 80. The power supply box 70 can be fixedly connected to the mounting body 1 by adopting the magnetic attraction plate 80, so that the connection of the LED display unit is more stable.

As shown in fig. 5 and 6, a plurality of supporting ribs 131 are disposed on the front side of the case 13, supporting ribs 131 are disposed on two sides of each second magnetic attraction piece 162 correspondingly, the front surfaces of the two supporting ribs 131 jointly form a third tuning plane 15, and the rear surface of the second magnetic attraction piece 162 is attached to the third tuning plane 15. The structure of forming the third tuning plane 15 by using the front surface of the supporting rib 131 has an advantage of convenient processing.

The support rib 131 can be used to support the second magnetic attraction member 162 to support the LED module 14, and the third adjustment plane 15 formed by the support rib 131 can be used to adjust the flatness of the LED module 14.

Specifically, the cross beam 132 and the longitudinal beam 133 are all aluminum profiles, and the supporting ribs 131 are rib plates in the aluminum profiles. The mode of adopting the aluminium alloy to make box 13 has the advantage of being convenient for draw materials and be convenient for processing.

It should be noted that, the supporting rib 131 is formed by processing the rib plate in the aluminum profile, and the supporting precision of the second magnetic attraction piece 162 can be improved through the processed rib plate, so that the second magnetic attraction piece 162 has higher flatness.

In the present embodiment, the first magnetic attraction member 161 and the second magnetic attraction member 162 are both provided on the screw, and the screw is connected to the LED module 14 and the case 13 to provide the first magnetic attraction member 161 and the second magnetic attraction member 162 on the case 13 and the LED module 14. The adjustment of the flatness of the LED module 14 is achieved by the attachment of the rear surface of the screw head of the screw to the third adjustment plane 15.

The first magnetic attraction member 161 and the second magnetic attraction member 162 may be both magnets, or one of them may be a magnet and the other may be a magnet sheet.

As shown in fig. 7 and 8, the box 13 includes a cross beam 132 and a longitudinal beam 133 connected in sequence, where the cross beam 132 and the longitudinal beam 133 jointly enclose a square frame structure, and an end face of the cross beam 132 is flush with a side wall of the longitudinal beam 133, and an end face of the longitudinal beam 133 is flush with a side wall of the cross beam 132. The box 13 adopting the structure can enable the outer side wall of the whole box 13 to have higher flatness, so that a good attaching state can be achieved in the process of splicing adjacent LED display units 10, and the flatness of the adjacent LED display units 10 can be adjusted by using the leveling plates 24.

In this embodiment, the LED module 14 includes 8 LED lamp panels, and 8 LED lamp panels are 2x 4's array arrangement, still are provided with along vertical extension's intermediate beam between two longerons 133, all are provided with a plurality of second magnetism on crossbeam 132, longeron 133 and intermediate beam and inhale piece 162, and a plurality of second magnetism inhale piece 162 along crossbeam 132, longeron 133 and intermediate beam's extending direction interval setting to the periphery that makes the LED lamp panel can have the adjustment point of a plurality of roughness, can make the roughness of LED lamp panel better through a plurality of roughness adjustment points.

As shown in fig. 8, a groove 134 is provided on one of the longitudinal beam 133 and the transverse beam 132, and the other of the longitudinal beam 133 and the transverse beam 132 is embedded in the groove 134 and the cross section of the cross section along the opening direction of the groove 134 is adapted to the groove depth of the groove 134. By adopting the box 13 with the structure, the end parts of the cross beam 132 or the longitudinal beam 133 can be formed to have an avoiding effect through the groove 134, so that the front surfaces of the cross beam 132 and the longitudinal beam 133 reach a flush state, and the LED module 14 is further provided with a flat supporting surface, and the flatness of the LED module 14 is improved.

In this embodiment, the box 13 includes a cross beam 132 and a longitudinal beam 133 that are sequentially connected, where the cross beam 132 and the longitudinal beam 133 jointly enclose a square frame structure, and support ribs 131 are disposed in the cross beam 132 and the longitudinal beam 133. Through all setting up the supporting rib 131 in crossbeam 132 and longeron 133, can guarantee that the second magnetism that laminates mutually with crossbeam 132 and longeron 133 inhale piece 162 all has good installation accuracy to guarantee the roughness of LED module 14.

In this embodiment, the LED display device further includes a plurality of connection assemblies 90 disposed between two adjacent LED display units 10, the connection assemblies 90 include a transverse connection screw 91, a longitudinal connection screw 92 and a positioning pin 93, the transverse connection screw 91 sequentially penetrates through the cross beams 132 of two adjacent LED display units 10 along the transverse direction, the longitudinal connection screw 92 sequentially penetrates through the longitudinal beams 133 of two adjacent LED display units 10 along the vertical direction, and the positioning pin 93 sequentially penetrates through the longitudinal beams 133 of two adjacent LED display units 10 along the vertical direction. With the above-structured connection assembly 90, vertical positioning of two adjacent LED display units 10 can be achieved by using the positioning pin 93, the LED display units 10 arranged in two adjacent lateral directions can be connected by using the lateral connection screw 91, and the LED display units 10 arranged in two adjacent longitudinal directions can be connected by using the longitudinal connection screw 92, so that the LED display units 10 can be connected as a whole.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. An LED display device, comprising:

the LED display units (10) are arranged in an array, and the rear wall of each LED display unit (10) is provided with a clamping groove (11);

the leveling component (20) is arranged on the rear side of the LED display unit (10), the leveling component (20) comprises a plurality of leveling pieces (21) and a plurality of hanging frames (22) fixedly arranged on the installation body (1), the upper end and the lower end of each LED display unit (10) are respectively provided with the leveling pieces (21) and the hanging frames (22), each leveling piece (21) can be inserted into the corresponding LED display unit (10) in a front-back moving mode, the rear wall of each leveling piece (21) is provided with a first adjusting plane (211) attached to the installation body (1), each LED display unit (10) can be adjusted front-back in a corresponding mode, each hanging frame (22) is provided with a clamping hook (221), and the clamping hooks (221) are clamped in the clamping grooves (11) in a one-to-one correspondence mode.

2. The LED display device according to claim 1, wherein the leveling member (21) includes a leveling knob (212), the first leveling surface (211) is a rear surface of the leveling knob (212), a threaded hole (12) is provided at a rear side of the LED display unit (10), and the leveling knob (212) is inserted into the threaded hole (12) and is screw-coupled with the threaded hole (12) to be moved forward and backward by rotating the leveling knob (212).

3. The LED display device according to claim 1, wherein the leveling assembly (20) further comprises a plurality of adjusting screws (23), first ends of the plurality of adjusting screws (23) are respectively inserted into the corresponding LED display units (10) in a back-and-forth movable manner, and second ends of the plurality of adjusting screws (23) are respectively abutted against the front surfaces of the corresponding hanging frames (22).

4. The LED display device of claim 1, wherein the leveling assembly (20) further comprises a plurality of leveling plates (24), each leveling plate (24) is disposed at a junction of two adjacent LED display units (10), a front surface of each leveling plate (24) forms a second leveling plane (241), and rear surfaces of two adjacent LED display units (10) are attached to the corresponding second leveling planes (241).

5. The LED display device according to claim 1, wherein the LED display unit (10) comprises a case (13), an LED module (14) disposed at a front side of the case (13), and a magnetic attraction component (16) disposed between the case (13) and the LED module (14), wherein the clamping groove (11) is disposed at a rear wall of the case (13), the magnetic attraction component (16) comprises a first magnetic attraction member (161) disposed at a rear side of the LED module (14) and a second magnetic attraction member (162) disposed at a front side of the case (13), the first magnetic attraction member (161) and the second magnetic attraction member (162) are in surface-to-surface fit and are attracted to each other, a third adjustment plane (15) is disposed on the case (13), and the second magnetic attraction member (162) is attached to the third adjustment plane (15).

6. The LED display device according to claim 5, wherein a plurality of supporting ribs (131) are provided on the front side of the case (13), the supporting ribs (131) are provided on both sides of each of the second magnetic attraction pieces (162), the third adjustment plane (15) is formed by the front surfaces of the two supporting ribs (131), and the rear surface of the second magnetic attraction pieces (162) is attached to the third adjustment plane (15).

7. The LED display device according to claim 6, wherein the case (13) includes a cross beam (132) and a side beam (133) connected in sequence, the cross beam (132) and the side beam (133) together enclosing a square frame structure, wherein an end face of the cross beam (132) is flush with a side wall of the side beam (133), and an end face of the side beam (133) is flush with a side wall of the cross beam (132).

8. The LED display device according to claim 7, wherein one of the side member (133) and the cross member (132) is provided with a groove (134), the other of the side member (133) and the cross member (132) is embedded in the groove (134) and the cross section thereof along the opening direction of the groove (134) is sized to fit the groove depth of the groove (134).

9. The LED display device according to claim 6, wherein the case (13) comprises a cross beam (132) and a longitudinal beam (133) connected in sequence, the cross beam (132) and the longitudinal beam (133) together enclose a square frame structure, wherein the cross beam (132) and the longitudinal beam (133) are both internally provided with the supporting ribs (131).

10. The LED display device of claim 3, wherein,

the hanging frame (22) is provided with two clamping hooks (221), the two clamping hooks (221) are respectively clamped in the clamping grooves (11) of the two adjacent LED display units (10), first ends of two adjusting screws (23) are respectively inserted into the rear walls of the two adjacent LED display units (10), and second ends of the two adjusting screws (23) are respectively abutted against the front surfaces of the hanging frame (22);

each LED display unit (10) corresponds to two hanging frames (22) and two leveling pieces (21), the two hanging frames (22) are respectively arranged at two corners of the upper end of the LED display unit (10), and the two leveling pieces (21) are respectively arranged at two corners of the lower end of the LED display unit (10).

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