CN219202653U

CN219202653U - LED display device

Info

Publication number: CN219202653U
Application number: CN202320025350.8U
Authority: CN
Inventors: 符小良; 郑金龙; 李军
Original assignee: Lemass Hunan Optoelectronic Co Ltd
Current assignee: Lemass Hunan Optoelectronic Co Ltd
Priority date: 2023-01-05
Filing date: 2023-01-05
Publication date: 2023-06-16
Anticipated expiration: 2033-01-05

Abstract

The utility model provides an LED display device, comprising: at least two LED display units; the first connecting component is arranged on the first one of the two adjacent LED display units and comprises a first supporting rod and a connecting pin, the first supporting rod penetrates through the first LED display unit and is provided with a first supporting surface, the first supporting rod can penetrate out of the side wall of the first LED display unit, the connecting pin penetrates through the first supporting rod, and the connecting pin is provided with a connecting position and a retracting position; the second connecting component is arranged on the second of the two adjacent LED display units and comprises a second supporting rod penetrating through the second LED display unit, the second supporting rod is provided with a second supporting surface, and when the connecting pin is positioned at the connecting position, the connecting pin can be connected with the second end of the second supporting rod; wherein, every LED display element all is provided with spacing portion. Through the scheme of this application, can solve the complicated problem of LED display device's structure.

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 device is an electronic device for displaying information such as text, images, or video. Along with the development of LED technology, the LED display device manufactured by taking LEDs as light sources is increasingly widely applied in life, and the life of people is greatly enriched.

In the related art, an LED display device is formed by splicing a plurality of LED display units, and different LED display units are connected through a splice lock, each LED display unit has a light emitting surface. When transporting or standing, the LED display unit is provided with a protection structure for protecting the luminous surface.

However, the splice lock and the protection structure in the related art are two uncorrelated structures, which makes the structure of the LED display device complex.

Disclosure of Invention

The utility model provides an LED display device, which aims to solve the problem that the structure of the LED display device in the related art is complex.

The present utility model provides an LED display device, comprising: at least two LED display units; the first connecting component is arranged on the first one of the two adjacent LED display units and comprises a first supporting rod and a connecting pin, the first supporting rod is movably arranged on the first LED display unit in a penetrating mode, the first end of the first supporting rod is provided with a first supporting surface, the first end of the first supporting rod can penetrate out of the side wall of the first LED display unit, the connecting pin is movably arranged in the first supporting rod in a penetrating mode along the extending direction of the first supporting rod in a penetrating mode, and the connecting pin is provided with a connecting position penetrating out of the first end of the first supporting rod and a retracting position retracting into the first supporting rod; the second connecting component is arranged on the second of the two adjacent LED display units and comprises a second supporting rod which is movably penetrated through the second LED display unit, a second supporting surface is arranged at the first end of the second supporting rod, the second end of the second supporting rod can penetrate out of the side wall of the second LED display unit, and when the connecting pin is positioned at the connecting position, the connecting pin can be connected with the second end of the second supporting rod; each LED display unit is provided with a limiting part, and the limiting parts can limit the position of the first support rod relative to the first LED display unit and the position of the second support rod relative to the second LED display unit.

Further, the limiting part comprises a limiting hole, the second end of the first supporting rod is provided with a limiting rod, the limiting rod is movably inserted into the first supporting rod, an included angle is formed between the first supporting rod and the limiting rod, and the limiting rod can be inserted into the limiting hole to limit the position of the first supporting rod relative to the first LED display unit.

Further, the limiting part further comprises a limiting groove, the limiting groove is located on one side, close to the side wall of the LED display unit, of the limiting hole, and the limiting rod can be inserted into the limiting groove to limit the position of the first supporting rod relative to the first LED display unit.

Further, the LED display unit is provided with the same mounting groove and dodge groove of being linked together and extending direction, and first bracing piece is located the mounting groove, and the one end of gag lever post is passed and is dodged the groove and insert and locate first bracing piece, and the other end of gag lever post wears out and dodges the groove, and spacing groove and spacing hole all communicate with the mounting groove, and the one end of spacing groove extends to dodge the groove, and the other end of spacing groove is located one side that dodges the groove is kept away from to first bracing piece.

Further, the limiting part further comprises a compression spring, a first bulge is arranged on the groove wall of the mounting groove, a second bulge is arranged at the second end of the first supporting rod, the compression spring is sleeved on the first supporting rod, and two ends of the compression spring are respectively abutted against the first bulge and the second bulge.

Further, the first connection assembly further comprises a stop structure capable of limiting the connection pin to the connection position.

Further, the stop structure comprises a stop piece and a stop hole, the stop hole is formed in the first support rod, the first support rod is further provided with a containing hole which is communicated with the stop hole and has an included angle with the stop hole, the stop piece is movably arranged in the stop hole in a penetrating mode, the connecting pin is movably arranged in the containing hole in a penetrating mode, the connecting pin is further provided with a first connecting hole which is the same as the extending direction of the stop hole in a penetrating mode, when the connecting pin is located at the connecting position, part of the stop piece is located in the stop hole, part of the stop piece is located in the first connecting hole, and when the connecting pin is located at the retracting position, the stop piece is located in the first connecting hole.

Further, the first connecting component further comprises an extension spring positioned in the accommodating hole, and two ends of the extension spring are respectively connected with the connecting pin and the hole wall of the accommodating hole.

Further, the first bracing piece is including the holding section and the supporting section that are connected, holds and has the contained angle between the extending direction of section and the extending direction of supporting section, holds the section and wears to locate first LED display element, and the supporting section can wear out the lateral wall of first LED display element, and first holding surface sets up on the supporting section, and the connecting pin movably wears to locate to hold the section and wear out the supporting section, and spacing portion can with hold the spacing cooperation of section.

Further, a second connecting hole is formed in the second end of the second supporting rod, and when the connecting pin is located at the connecting position, the connecting pin is located in the second connecting hole; and/or the LED display unit comprises a box body and an LED module arranged on the front side of the box body, the first connecting component is arranged on the rear side of the box body of the first LED display unit, and the second connecting component is arranged on the rear side of the box body of the second LED display unit.

By applying the technical scheme of the utility model, the LED display device comprises at least two LED display units, a first connecting component and a second connecting component, when the LED display device is assembled, the first supporting surface of the first end of the first supporting rod is positioned in the side wall of the first LED display unit, the second supporting surface of the first end of the second supporting rod is positioned in the side wall of the second LED display unit, and the connecting pin is moved to a connecting position penetrating out of the first end of the first supporting rod and is connected with the second end of the second supporting rod, so that the connection of two adjacent LED display units can be realized. When any one of the LED display units is transported or kept stand, the connecting pin is moved to a retracted position in the first supporting rod, so that the first end of the first supporting rod penetrates out of the side wall of the first LED display unit, the first supporting surface protrudes out of the side wall of the LED display unit, and the position of the first supporting rod relative to the LED display unit is limited by the limiting part. Or the first end of the second support rod penetrates out of the side wall of the second LED display unit, so that the second support surface protrudes out of the side wall of the LED display unit, and the position of the second support rod relative to the LED display unit is limited by the limiting part. The LED display unit can be placed on the ground by utilizing the first supporting surface or the second supporting surface to be in contact with the ground, the LED display unit is supported, the LED luminous surface is prevented from being in contact with the ground, and the luminous surface of the LED display unit can be protected. Compared with the scheme of adopting two independent structures to respectively realize the splicing of two LED display units and the protection of the luminous surface, the LED display unit has the advantage of simple structure.

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 an exploded view of an LED display device provided according to an embodiment of the present utility model;

FIG. 2 shows an exploded view of the first connection assembly of FIG. 1;

FIG. 3 shows an exploded view of the second connection assembly of FIG. 1;

fig. 4 shows a cross-sectional view of an LED display device provided according to an embodiment of the present utility model;

fig. 5 shows a partial enlarged view at a in fig. 4;

fig. 6 shows an assembly view of an LED display device provided according to an embodiment of the present utility model;

fig. 7 shows a partial enlarged view at B in fig. 6;

FIG. 8 shows a partial enlarged view at C in FIG. 6;

fig. 9 shows an assembly view of an LED display device case provided according to an embodiment of the present utility model;

fig. 10 shows a partial enlarged view at D in fig. 9;

FIG. 11 illustrates a cross-sectional view of a connection pin of an LED display device in a retracted position, provided in accordance with an embodiment of the present utility model;

fig. 12 is a cross-sectional view showing a connection pin of an LED display device in a retracted position and a stopper rod rotated 180 ° according to an embodiment of the present utility model.

Wherein the above figures include the following reference numerals:

10. an LED display unit; 11. a limit part; 111. a limiting hole; 112. a limit groove; 113. a compression spring; 12. a mounting groove; 121. a first protrusion; 13. an avoidance groove; 14. a case; 15. an LED module;

20. a first connection assembly; 21. a first support bar; 211. a first support surface; 212. a limit rod; 213. a second protrusion; 214. a receiving hole; 215. a receiving section; 216. a support section; 22. a connecting pin; 221. a first connection hole; 23. a stop structure; 231. a stopper; 232. a stop hole; 24. a tension spring;

30. a second connection assembly; 31. a second support bar; 311. a second support surface; 312. and a second connection hole.

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 12, the embodiment of the present utility model provides an LED display device, which includes at least two LED display units 10, a first connection assembly 20 and a second connection assembly 30, the first connection assembly 20 is disposed at a first one of the two adjacent LED display units 10, the first connection assembly 20 includes a first support bar 21 and a connection pin 22, the first support bar 21 is movably disposed through the first LED display unit 10, a first end of the first support bar 21 has a first support surface 211, a first end of the first support bar 21 is capable of penetrating out of a sidewall of the first LED display unit 10, the connection pin 22 is movably disposed in the first support bar 21 along an extending direction of the first support bar 21, and the connection pin 22 has a connection position penetrating out of the first end of the first support bar 21 and a retracted position retracted into the first support bar 21; the second connection assembly 30 is disposed at a second one of the two adjacent LED display units 10, the second connection assembly 30 includes a second support rod 31 movably penetrating the second LED display unit 10, a first end of the second support rod 31 has a second support surface 311, a second end of the second support rod 31 can penetrate the sidewall of the second LED display unit 10, and the connection pin 22 can be connected with the second end of the second support rod 31 when the connection pin 22 is at the connection position; wherein, each LED display unit 10 is provided with a limiting portion 11, and the limiting portion 11 can limit the position of the first support bar 21 relative to the first LED display unit 10 and the position of the second support bar 31 relative to the second LED display unit 10.

By applying the technical scheme of the utility model, the LED display device comprises at least two LED display units 10, a first connecting component 20 and a second connecting component 30, when the LED display device is assembled, the first supporting surface 211 of the first end of the first supporting rod 21 is positioned in the side wall of the first LED display unit 10, the second supporting surface 311 of the first end of the second supporting rod 31 is positioned in the side wall of the second LED display unit 10, and the connecting pin 22 is moved to a connecting position penetrating out of the first end of the first supporting rod 21 and is connected with the second end of the second supporting rod 31, so that the connection of two adjacent LED display units 10 can be realized. When any one of the LED display units 10 is transported or kept still, the connecting pin 22 is moved to a retracted position retracted into the first support rod 21, so that the first end of the first support rod 21 penetrates out of the side wall of the first LED display unit 10, the first support surface 211 protrudes out of the side wall of the LED display unit 10, and the position of the first support rod 21 relative to the LED display unit 10 is limited by the limiting portion 11. Alternatively, the first end of the second support rod 31 is penetrated out of the side wall of the second LED display unit 10, so that the second support surface 311 protrudes out of the side wall of the LED display unit 10, and the position of the second support rod 31 relative to the LED display unit 10 is limited by the limiting part 11. The LED display unit 10 can be placed on the ground by using the first supporting surface 211 or the second supporting surface 311 to contact with the ground, and the LED display unit 10 can be supported while the LED light emitting surface is prevented from contacting with the ground, so that the light emitting surface of the LED display unit 10 can be protected. Compared with the scheme of adopting two independent structures to respectively realize the splicing of the two LED display units 10 and the protection of the luminous surface, the LED display device has the advantage of simple structure.

In this embodiment, when the connecting pin 22 is located at the connecting position, the first supporting rod 21 can retract into the side wall of the first LED display unit 10 or be flush with the side wall of the LED display unit 10, and the second supporting rod 31 can retract into the side wall of the second LED display unit or be flush with the side wall of the LED display unit 10, so that after the two adjacent LED display units 10 are spliced, no gap exists between the light emitting surfaces of the two.

The LED display unit 10 can be supported by the first support bar 21 provided in the stopper portion 11 or the second support bar 31 provided in the stopper portion 11.

As shown in fig. 6, 7 and 10, the limiting portion 11 includes a limiting hole 111, a limiting rod 212 is disposed at a second end of the first supporting rod 21, the limiting rod 212 is movably inserted into the first supporting rod 21, an included angle is formed between the first supporting rod 21 and the limiting rod 212, and the limiting rod 212 can be inserted into the limiting hole 111 to limit the position of the first supporting rod 21 relative to the first LED display unit 10. Utilize gag lever post 212 to insert and locate spacing hole 111 and carry out spacingly to first bracing piece 21, make first bracing piece 21 can support LED display element 10, have simple structure, the advantage of being convenient for set up.

In this embodiment, the first support bar 21 is perpendicular to the stopper bar 212. One end of the stopper rod 212 is provided with an anti-falling spacer to prevent the stopper rod 212 from falling out of the first support rod 21, and the other end of the stopper rod 212 is provided as an operation handle.

As shown in fig. 7, 8 and 10, the limiting portion 11 further includes a limiting groove 112, the limiting groove 112 is located on one side of the limiting hole 111 near the side wall of the LED display unit 10, and the limiting rod 212 can be inserted into the limiting groove 112 to limit the position of the first supporting rod 21 relative to the first LED display unit 10. The first support rod 21 can be limited by inserting the limiting rod 212 into the limiting groove 112, so that the first support rod 21 can support the LED display unit 10.

In this embodiment, two first connection assemblies 20 or two second connection assemblies 30 are disposed on the same side wall of the LED display unit 10 at intervals, wherein the limiting rod 212 of one first connection assembly 20 is inserted into the limiting hole 111, and the limiting rod 212 of the other first connection assembly 20 is inserted into the limiting groove 112, so that the heights of the first supporting surfaces 211 of the two first supporting rods 21 are inconsistent, and when the ground is uneven, the LED display unit 10 is supported on the ground by using the two first supporting surfaces 211 with inconsistent heights.

The second support rod 31 is also provided with a corresponding stopper rod, and the stopper rod is perpendicular to the second support rod 31, and the LED display unit 10 can be supported by inserting the stopper rod into the corresponding stopper hole 111 or the stopper groove 112.

As shown in fig. 8 to 10, the LED display unit 10 is provided with a mounting groove 12 and an avoidance groove 13 which are communicated and have the same extending direction, the first support rod 21 is located in the mounting groove 12, one end of the limit rod 212 passes through the avoidance groove 13 and is inserted into the first support rod 21, the other end of the limit rod 212 passes through the avoidance groove 13, both the limit groove 112 and the limit hole 111 are communicated with the mounting groove 12, one end of the limit groove 112 extends to the avoidance groove 13, and the other end of the limit groove 112 is located at one side of the first support rod 21 away from the avoidance groove 13. With the above structure, when the limit rod 212 is inserted into the limit groove 112, the limit rod 212 can be moved from the side, which is communicated with the avoidance groove 13, of the limit groove 112 to the side, which is located on the side, which is far away from the avoidance groove 13, of the first support rod 21, so that the first support rod 21 can rotate 180 degrees, the first end of the first support rod 21 can protrude out of the light emitting surface of the LED display unit 10, and the first end of the first support rod 21 is utilized to realize the horizontal placement of the LED display unit 10 so as to protect the light emitting surface of the LED display unit.

In this embodiment, the limiting rod of the second supporting rod 31 can also rotate 180 ° in the corresponding limiting groove 112, so that the first end of the second supporting rod 31 protrudes from the light emitting surface of the LED display unit 10.

As shown in fig. 2, 5 and 10, the limiting portion 11 further includes a compression spring 113, a first protrusion 121 is disposed on a groove wall of the mounting groove 12, a second protrusion 213 is disposed at a second end of the first support rod 21, the compression spring 113 is sleeved on the first support rod 21, and two ends of the compression spring 113 are respectively abutted against the first protrusion 121 and the second protrusion 213. The compression spring 113 can provide elastic force for the first support rod 21, so that the first support rod 21 can be automatically reset into the side wall of the LED display unit 10, and connection of two adjacent LED display units 10 is facilitated.

In this embodiment, the second protrusion 213 is a bearing pad sleeved on the second end of the first support rod 21.

As shown in fig. 2 and 5, the first coupling assembly 20 further includes a stop structure 23, the stop structure 23 being capable of limiting the coupling pin 22 to the coupling position. The connection pin 22 can be limited by the stopper 23 so that the connection pin 22 is located at the connection position, and two adjacent LED display units 10 are connected.

As shown in fig. 2 and 5, the stopper structure 23 includes a stopper 231 and a stopper hole 232, the stopper hole 232 is provided in the first support bar 21, the first support bar 21 further has a receiving hole 214 communicating with the stopper hole 232 and having an angle with the stopper hole 232, the stopper 231 is movably penetrated through the stopper hole 232, the connection pin 22 is movably penetrated through the receiving hole 214, the connection pin 22 further has a first connection hole 221 having the same extending direction as the stopper hole 232, a portion of the stopper 231 is positioned in the stopper hole 232 when the connection pin 22 is positioned at the connection position, a portion of the stopper 231 is positioned in the first connection hole 221, and the stopper 231 is positioned in the first connection hole 221 when the connection pin 22 is positioned at the retracted position. By adopting the stop structure 23, the part of the stop member 231 is positioned in the stop hole 232, and the part of the stop member 231 is positioned in the first connecting hole 221, so that the limit of the connecting pin 22 is realized, and the stop structure has the advantage of simple structure.

In the present embodiment, the stopper 231 is screw-coupled with the first coupling hole 221 of the coupling pin 22.

As shown in fig. 2 and 5, the first coupling assembly 20 further includes a tension spring 24 positioned in the receiving hole 214, and both ends of the tension spring 24 are coupled with the coupling pin 22 and the wall of the receiving hole 214, respectively. The extension spring 24 can be used for exerting a pulling force on the connecting pin 22, so that the connecting pin 22 is automatically reset to the retracted position, and the adjacent two LED display units 10 are separated conveniently.

As shown in fig. 2, the first support rod 21 includes a receiving section 215 and a supporting section 216 that are connected, an included angle is formed between an extending direction of the receiving section 215 and an extending direction of the supporting section 216, the receiving section 215 is arranged on the first LED display unit 10 in a penetrating manner, the supporting section 216 can be arranged on a side wall of the first LED display unit 10 in a penetrating manner, the first supporting surface 211 is arranged on the supporting section 216, the connecting pin 22 is arranged on the receiving section 215 in a penetrating manner and penetrates out of the supporting section 216 in a movable manner, and the limiting portion 11 can be in limiting fit with the receiving section 215. With the first support bar 21 having the above-described structure, the connecting pin 22 can be accommodated in the accommodating section 215 and is in a spacing fit with the spacing portion 11, and the LED display unit 10 can be supported by the support section 216.

In this embodiment, the receiving section 215 is perpendicular to the supporting section 216. The first support surface 211 is a plane provided on a side wall of the support section 216 along its axis. After the stopper rod 212 is rotated 180 °, the LED display unit 10 is supported by the end surface of the support section 216.

As shown in fig. 5, the second end of the second supporting rod 31 is provided with a second connecting hole 312, when the connecting pin 22 is located at the connecting position, the connecting pin 22 is located in the second connecting hole 312, and the second connecting hole 312 is connected with the connecting pin 22, so that the structure is simple and the operation is convenient.

Specifically, the LED display unit 10 includes a case 14 and an LED module 15 disposed at a front side of the case 14, the first connection assembly 20 is disposed at a rear side of the case 14 of the first LED display unit 10, and the second connection assembly 30 is disposed at a rear side of the case 14 of the second LED display unit 10. With the above arrangement, the first connection assembly 20 and the second connection assembly 30 can be respectively located at the rear side of the case 14, so as not to interfere with the LED module 15 disposed at the front side of the case 14.

Specifically, the notch of the mounting groove 12 faces the front side of the case 14. The connection pin 22 is removable through the notch of the mounting groove 12, and a removal hole through which the connection pin 22 is removable is provided at the rear side of the case 14.

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

1. An LED display device, comprising:

at least two LED display units (10);

the first connecting assembly (20) is arranged on the first one of the two adjacent LED display units (10), the first connecting assembly (20) comprises a first supporting rod (21) and a connecting pin (22), the first supporting rod (21) is movably arranged on the first LED display unit (10) in a penetrating mode, a first supporting surface (211) is arranged at the first end of the first supporting rod (21), the first end of the first supporting rod (21) can penetrate out of the side wall of the first LED display unit (10), the connecting pin (22) is movably arranged in the first supporting rod (21) in the extending direction of the first supporting rod (21) in a penetrating mode, and the connecting pin (22) is provided with a connecting position penetrating out of the first end of the first supporting rod (21) and a retracting position retracting into the first supporting rod (21);

the second connecting assembly (30) is arranged at a second one of the two adjacent LED display units (10), the second connecting assembly (30) comprises a second supporting rod (31) movably penetrating through the second LED display unit (10), a first end of the second supporting rod (31) is provided with a second supporting surface (311), a second end of the second supporting rod (31) can penetrate out of the side wall of the second LED display unit (10), and when the connecting pin (22) is positioned at the connecting position, the connecting pin (22) can be connected with the second end of the second supporting rod (31);

each LED display unit (10) is provided with a limiting part (11), and the limiting parts (11) can limit the position of the first supporting rod (21) relative to the first LED display unit (10) and the position of the second supporting rod (31) relative to the second LED display unit (10).

2. The LED display device according to claim 1, wherein the limiting portion (11) includes a limiting hole (111), a limiting rod (212) is disposed at a second end of the first supporting rod (21), the limiting rod (212) is movably inserted into the first supporting rod (21), an included angle is formed between the first supporting rod (21) and the limiting rod (212), and the limiting rod (212) can be inserted into the limiting hole (111) to limit a position of the first supporting rod (21) relative to the first LED display unit (10).

3. The LED display device according to claim 2, wherein the limiting portion (11) further comprises a limiting groove (112), the limiting groove (112) is located on a side of the limiting hole (111) close to the side wall of the LED display unit (10), and the limiting rod (212) can be inserted into the limiting groove (112) to limit the position of the first supporting rod (21) relative to the first LED display unit (10).

4. The LED display device according to claim 3, wherein the LED display unit (10) is provided with a mounting groove (12) and a avoidance groove (13) which are communicated and have the same extending direction, the first support rod (21) is located in the mounting groove (12), one end of the limit rod (212) passes through the avoidance groove (13) and is inserted into the first support rod (21), the other end of the limit rod (212) passes out of the avoidance groove (13), the limit groove (112) and the limit hole (111) are both communicated with the mounting groove (12), one end of the limit groove (112) extends to the avoidance groove (13), and the other end of the limit groove (112) is located at one side of the first support rod (21) away from the avoidance groove (13).

5. The LED display device according to claim 4, wherein the limiting portion (11) further comprises a compression spring (113), a first protrusion (121) is provided on a groove wall of the mounting groove (12), a second protrusion (213) is provided at a second end of the first support rod (21), the compression spring (113) is sleeved on the first support rod (21), and two ends of the compression spring (113) are respectively abutted to the first protrusion (121) and the second protrusion (213).

6. The LED display device according to claim 1, characterized in that the first connection assembly (20) further comprises a stop structure (23), which stop structure (23) is capable of limiting the connection pin (22) in the connection position.

7. The LED display device according to claim 6, characterized in that the stop structure (23) comprises a stop member (231) and a stop hole (232), the stop hole (232) being provided in the first support bar (21), the first support bar (21) further having a receiving hole (214) communicating with the stop hole (232) and having an angle with the stop hole (232), the stop member (231) being movably provided through the stop hole (232), the connecting pin (22) being movably provided through the receiving hole (214), the connecting pin (22) further having a first connecting hole (221) having the same extension direction as the stop hole (232), a part of the stop member (231) being located in the stop hole (232) when the connecting pin (22) is located in the connecting position, a part of the stop member (231) being located in the first connecting hole (221), and the connecting pin (22) being located in the retracted position, the first connecting hole (221) being located in the first connecting hole (221).

8. The LED display device of claim 7, wherein said first connection assembly (20) further comprises a tension spring (24) located in said receiving hole (214), and both ends of said tension spring (24) are connected to said connection pin (22) and a wall of said receiving hole (214), respectively.

9. The LED display device according to claim 1, wherein the first support bar (21) comprises a receiving section (215) and a supporting section (216) which are connected, an included angle is formed between the extending direction of the receiving section (215) and the extending direction of the supporting section (216), the receiving section (215) is arranged on the first LED display unit (10) in a penetrating manner, the supporting section (216) can be arranged on the side wall of the first LED display unit (10) in a penetrating manner, the first supporting surface (211) is arranged on the supporting section (216), the connecting pin (22) is arranged on the receiving section (215) in a penetrating manner and penetrates out of the supporting section (216) in a penetrating manner, and the limiting part (11) can be in limiting fit with the receiving section (215).

10. The LED display device of claim 1, wherein the LED display device comprises,

a second end of the second supporting rod (31) is provided with a second connecting hole (312), and when the connecting pin (22) is positioned at the connecting position, the connecting pin (22) is positioned in the second connecting hole (312); and/or, the LED display unit (10) comprises a box body (14) and an LED module (15) arranged on the front side of the box body (14), the first connecting component (20) is arranged on the rear side of the box body (14) of the first LED display unit (10), and the second connecting component (30) is arranged on the rear side of the box body (14) of the second LED display unit (10).