CN115831000A - LED display screen - Google Patents

Abstract

The invention provides an LED display screen, wherein a first connecting assembly is arranged at the rear side of a first one of two adjacent LED display units, the first connecting assembly comprises a sliding lock cylinder and a driving piece, the sliding lock cylinder is in sliding connection with the first LED display unit, the driving piece can drive the sliding lock cylinder to slide along a preset sliding direction, and an included angle is formed between the preset sliding direction and the side wall of the first LED display unit; the second connecting assembly is arranged on the rear side of the second of the two adjacent LED display units and comprises a connecting rod, and the connecting rod can penetrate through the side wall of the second LED display unit and is connected with the sliding lock core; the limiting structure comprises a limiting bulge and a plurality of limiting step surfaces, the limiting bulge is arranged on the side wall, facing the sliding lock cylinder, of the second LED display unit, and the limiting step surfaces are arranged on the outer side wall of the sliding lock cylinder at intervals. Through the scheme of this application, can solve the problem that the structure of the arc connection lock between the adjacent LED display element is complicated.

Description

LED display screen

Technical Field

The invention relates to the technical field of electronic products, in particular to an LED display screen.

Background

With the continuous development of the LED technology, the application of the LED display screen is more extensive, especially, the arc-shaped LED display device with a certain radian has a wider visual angle and more aesthetic design, and the LED display screen is widely applied to the field of stage performance, so that the sensory experience of viewers is greatly enriched.

In the related art, the LED display screen is composed of a plurality of connected LED display units, two adjacent LED display units are connected in an arc connection lock mode, the arc connection lock comprises an arc lock cylinder and an arc groove, the arc lock cylinder is arranged on one of the two adjacent LED display units, the arc groove is arranged on the other one of the two adjacent LED display units, and the angle between the two adjacent LED display units is controlled by adjusting the length of the arc lock cylinder in the arc groove.

However, the arc-shaped connecting lock for adjusting the angle between the adjacent LED display units has a complex structure.

Disclosure of Invention

The invention provides an LED display screen, which aims to solve the problem that the structure of an arc-shaped connecting lock between adjacent LED display units in the related art is complex.

The invention provides an LED display screen, which comprises: at least two LED display units; the first connecting assembly is arranged on the rear side of the first of the two adjacent LED display units and comprises a sliding lock cylinder and a driving piece, the sliding lock cylinder is connected with the first LED display unit in a sliding mode, the driving piece can drive the sliding lock cylinder to slide along a preset sliding direction, and an included angle is formed between the preset sliding direction and the side wall of the first LED display unit; the second connecting assembly is arranged on the rear side of the second of the two adjacent LED display units and comprises a connecting rod, and the first end of the connecting rod can penetrate through the side wall of the second LED display unit and is connected with the sliding lock core; the limiting structure comprises a limiting bulge and a plurality of limiting step surfaces, the limiting bulge is arranged on the side wall, facing the sliding lock cylinder, of the second LED display unit, and the limiting step surfaces are arranged on the outer side wall, facing the second LED display unit, of the sliding lock cylinder at intervals; the limiting protrusions can be selectively attached to one of the limiting step surfaces, so that the angle between two adjacent LED display units is limited to a preset angle corresponding to the limiting step surface.

Further, the driving piece includes the actuating lever that rotationally sets up, the actuating lever cooperates with the drive of slip lock core, in order to convert the rotary motion of actuating lever into the rectilinear slip of slip lock core, first connecting assembly still includes first locating part, first locating part includes connecting plate and spacing seat, the connecting plate is connected with the rear side of first LED display element, spacing seat is along the movably setting on the connecting plate of fore-and-aft direction, the actuating lever is located one side of spacing seat towards slip lock core, can press the rotation of actuating lever in order to restrict the actuating lever through spacing seat, thereby the position of the relative first LED display element of restriction slip lock core.

Furthermore, the end part of the driving rod is sleeved with a gear, the sliding lock cylinder is provided with a rack, the gear is meshed with the rack, one side of the limiting seat, facing the sliding lock cylinder, is provided with a limiting groove, and the driving rod and the gear are rotatably arranged in the limiting groove.

Furthermore, the first limiting part further comprises a transmission rod extending in the front-back direction, the transmission rod is in threaded connection with the connecting plate, a pressing protrusion is arranged on the transmission rod, and when the transmission rod moves back and forth relative to the connecting plate, the pressing protrusion can be attached to one side, away from the sliding lock cylinder, of the limiting seat to press the limiting seat.

Furthermore, the connecting plate is provided with a guide rod extending along the front-back direction, the limiting seat is provided with a guide groove extending along the front-back direction, and the guide rod is inserted in the guide groove.

Further, the second connecting assembly further comprises a second limiting part, the second limiting part can be matched with the connecting rod in a limiting mode to limit the position of the connecting rod relative to the second LED display unit, one side, facing the second LED display unit, of the sliding lock cylinder is provided with a strip-shaped hole penetrating through the sliding lock cylinder, the strip-shaped hole extends along the preset sliding direction, the first end of the connecting rod is provided with a connecting protrusion, and the connecting protrusion can penetrate through the strip-shaped hole to be connected with the sliding lock cylinder.

Furthermore, the sliding lock core is provided with a sliding cavity communicated with the strip-shaped hole, the cavity wall of the sliding cavity is provided with a plurality of anti-rotation bosses arranged at intervals, and the connecting protrusion extends into the sliding cavity and can be in limit fit with the corresponding anti-rotation bosses to limit the rotation of the connecting protrusion.

Further, be provided with on the first LED display element and remind the arch, the front surface of slip lock core has the recess that a plurality of intervals set up, and the direction of arranging of recess is the same with the slip direction of predetermineeing, reminds the arch can with one of them spacing cooperation of a plurality of recesses.

Furthermore, a plurality of first indicating parts are arranged on the sliding lock cylinder, the first indicating parts correspond to the limiting step surfaces one to one, and a second indicating part is fixedly arranged on the first LED display unit, wherein when the sliding lock cylinder slides to one of the first indicating parts to be aligned with the second indicating part, the limiting bulge is attached to the limiting step surface corresponding to the first indicating part.

Furthermore, a first sliding portion is arranged on the first LED display unit, a second sliding portion is arranged on the sliding lock cylinder, the sliding lock cylinder is connected with the second sliding portion in a sliding mode through the first sliding portion, and at least one of the first sliding portion and the second sliding portion extends along the preset sliding direction.

By applying the technical scheme, the LED display screen comprises at least two LED display units, a first connecting assembly, a second connecting assembly and a limiting structure, when two adjacent LED display units are connected, the sliding lock cylinder is driven by the driving piece to slide along a preset sliding direction relative to the first LED display unit, and the sliding lock cylinder can change the position relative to the side wall of the first LED display unit due to the fact that an included angle is formed between the preset sliding direction and the side wall of the first LED display unit. Because the first end of the connecting rod can penetrate through the side wall of the second LED display unit to be connected with the sliding lock cylinder, the extension length of the connecting rod relative to the side wall of the second LED display unit can be adjusted when the sliding lock cylinder slides relative to the first LED display unit, and the angle between the first LED display unit and the second LED display unit can be adjusted. And when the sliding lock core slides along the preset sliding direction, the limiting bulge arranged on the side wall of the second LED display unit can be selectively attached to one of the limiting step surfaces on the outer side wall of the sliding lock core, so that the angle between two adjacent LED display units is limited to the preset angle corresponding to the limiting step surface, and the two adjacent LED display units can be adjusted to the preset angle. Compared with an adjusting mode adopting an arc-shaped connecting lock, the adjusting device has the advantage of simple structure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 illustrates an exploded view of an LED display unit, a first connection assembly, and a second connection assembly of an LED display screen provided according to an embodiment of the present invention;

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

FIG. 3 shows a schematic view of the slide lock cylinder of FIG. 2;

FIG. 4 shows a further structural schematic view of the slide lock cylinder of FIG. 2;

FIG. 5 is a schematic structural view of the spacing block of FIG. 2;

FIG. 6 is a schematic structural diagram of an LED display screen provided according to an embodiment of the present invention;

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

FIG. 8 is an assembly view of the housing, the first connecting assembly and the second connecting assembly of the LED display screen provided by the embodiment of the invention;

fig. 9 shows an exploded view of the second connection assembly of fig. 8;

fig. 10 is a structural view showing a first indication part and a limit step surface of the slide lock core in fig. 2.

Wherein the figures include the following reference numerals:

10. an LED display unit; 11. a first sliding section; 12. a reminding bulge; 13. a box body; 14. mounting grooves; 15. a second indication unit;

20. a first connection assembly; 21. a sliding lock cylinder; 211. a second sliding section; 212. a rack; 213. a strip-shaped hole; 214. a slide chamber; 215. an anti-rotation boss; 216. a groove; 217. a first indication unit; 22. a drive member; 221. a drive rod; 222. a gear; 23. a first limit piece; 231. a limiting groove; 232. a connecting plate; 2321. a guide bar; 233. a limiting seat; 2331. a guide groove; 234. a transmission rod; 2341. compressing the bulge;

30. a second connection assembly; 31. a second limit piece; 32. a connecting rod; 321. a connecting projection;

40. a limiting structure; 41. a limiting bulge; 42. and a limiting step surface.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 10, an embodiment of the present invention provides an LED display screen, where the LED display screen includes at least two LED display units 10, a first connection assembly 20, a second connection assembly 30, and a limiting structure 40, the first connection assembly 20 is disposed at a rear side of a first of two adjacent LED display units 10, the first connection assembly 20 includes a sliding lock cylinder 21 and a driving element 22, the sliding lock cylinder 21 is slidably connected to the first LED display unit 10, the driving element 22 can drive the sliding lock cylinder 21 to slide along a preset sliding direction, and an included angle is formed between the preset sliding direction and a side wall of the first LED display unit 10; the second connecting assembly 30 is arranged at the rear side of the second of the two adjacent LED display units 10, the second connecting assembly 30 comprises a connecting rod 32, and the first end of the connecting rod 32 can penetrate through the side wall of the second LED display unit 10 and is connected with the sliding lock cylinder 21; the limiting structure 40 of the limiting structure 40 comprises a limiting protrusion 41 and a plurality of limiting step surfaces 42, the limiting protrusion 41 is arranged on the side wall of the second LED display unit 10 facing the sliding lock cylinder 21, and the plurality of limiting step surfaces 42 are arranged on the outer side wall of the sliding lock cylinder 21 facing the second LED display unit 10 at intervals; the plurality of limiting step surfaces 42 are driven to move by the sliding of the sliding lock cylinder 21, so that the limiting protrusion 41 can be selectively attached to one of the limiting step surfaces 42, and the angle between two adjacent LED display units 10 is limited to a preset angle corresponding to the limiting step surface 42.

By applying the technical scheme of the invention, the LED display screen comprises at least two LED display units 10, a first connecting assembly 20, a second connecting assembly 30 and a limiting structure 40, when two adjacent LED display units 10 are connected, the sliding lock cylinder 21 is driven by the driving piece 22 to slide along a preset sliding direction relative to the first LED display unit 10, and the sliding lock cylinder 21 can change position relative to the side wall of the first LED display unit 10 due to an included angle formed between the preset sliding direction and the side wall of the first LED display unit 10. Because the first end of the connecting rod 32 can penetrate through the side wall of the second LED display unit 10 to be connected with the sliding lock cylinder 21, when the sliding lock cylinder 21 slides relative to the first LED display unit 10, the extending length of the connecting rod 32 relative to the side wall of the second LED display unit 10 can be adjusted, and the angle between the first LED display unit 10 and the second LED display unit 10 can be adjusted. Moreover, when the sliding lock cylinder 21 slides along the preset sliding direction, the limiting protrusion 41 disposed on the side wall of the second LED display unit 10 can be selectively attached to one of the limiting step surfaces 42 on the outer side wall of the sliding lock cylinder 21, so that the angle between two adjacent LED display units 10 is limited to the preset angle corresponding to the limiting step surface 42, that is, the two adjacent LED display units 10 can be adjusted to the preset angle. Compared with an adjusting mode of adopting an arc-shaped connecting lock, the adjusting device has the advantage of simple structure.

It should be noted that the plurality of limiting step surfaces 42 are sequentially arranged along the preset sliding direction, and the height of each limiting step surface 42 is related to the distance that the sliding lock cylinder 21 extends out of or retracts into the first LED display unit 10 when sliding, so that when the sliding lock cylinder 21 slides to a certain position along the preset sliding direction, a certain determined limiting step surface 42 is just attached to the limiting protrusion 41. The angle of each limiting step surface 42 is designed according to the numerical value of the preset angle, so that when a certain limiting step surface 42 is attached to the limiting protrusion 41, the angle between two adjacent LED display units 10 is just the preset angle corresponding to the limiting step surface 42.

As shown in fig. 1 and fig. 2, the driving member 22 includes a driving rod 221 which is rotatably disposed, the driving rod 221 is in driving engagement with the sliding plug 21 to convert the rotational movement of the driving rod 221 into the linear sliding movement of the sliding plug 21, the first connection assembly 20 further includes a first limiting member 23, the first limiting member 23 includes a connecting plate 232 and a limiting seat 233, the connecting plate 232 is connected with the rear side of the first LED display unit 10, the limiting seat 233 is movably disposed on the connecting plate 232 along the front-rear direction, the driving rod 221 is located on one side of the limiting seat 233 facing the sliding plug 21, and the driving rod 221 can be pressed by the limiting seat 233 to limit the rotation of the driving rod 221, so as to limit the position of the sliding plug 21 relative to the first LED display unit 10. The driving member 22 with the above structure can drive the sliding lock cylinder 21 to slide along the preset sliding direction by using the rotating driving rod 221, and has the advantages of simple structure and convenient arrangement. After the position adjustment of the sliding lock cylinder 21 is completed, the position of the sliding lock cylinder 21 relative to the first LED display unit 10 can be restricted by pressing the position restricting seat 233 on the driving rod 221 by the movement of the position restricting seat 233 in the front-rear direction, and further restricting the driving rod 221 from rotating continuously.

It should be noted that the driving rod 221 can convert the rotational motion of the driving rod 221 into the linear motion of the sliding lock cylinder 21 by means of the threaded connection with the sliding lock cylinder 21; the driving rod 221 and the sliding lock cylinder 21 may be engaged with each other through a rack and pinion, so that the rotational motion of the driving rod 221 is converted into the linear motion of the sliding lock cylinder 21.

In this embodiment, the driving rod 221 is limited by the first limiting member 23, so that the driving rod 221 can only rotate along its axis without moving. Of course, in other embodiments, the sliding lock cylinder 21 may be used to limit the rotation of the driving rod 221 only along its axis.

As shown in fig. 2 and 5, the end of the driving rod 221 is sleeved with a gear 222, the sliding lock cylinder 21 is provided with a rack 212, the gear 222 is engaged with the rack 212, one side of the first limiting member 23 facing the sliding lock cylinder 21 is provided with a limiting groove 231, and the driving rod 221 and the gear 222 are rotatably disposed in the limiting groove 231. The driving mode that the gear 222 is meshed with the rack 212 is adopted, so that the driving structure is reliable, and the operation is convenient. The driving rod 221 is limited by the limiting groove 231, and the limiting structure is simple.

In the present embodiment, the extending direction of the racks 212 is the same as the preset sliding direction of the sliding lock cylinder 21, so that the sliding lock cylinder 21 can be slid in the preset sliding direction.

In this embodiment, in order to make the limit of the driving rod 221 more reasonable, the two sides of the gear 222 both extend to form a rod body of the driving rod 221, the limit groove 231 is a deep groove and a shallow groove located at two sides of the deep groove, the gear 222 is limited in the deep groove, and the rod bodies at two sides of the gear 222 are limited in the shallow grooves at two sides of the deep groove.

As shown in fig. 2, the first limiting member 23 further includes a transmission rod 234 extending in the front-back direction, the transmission rod 234 is in threaded connection with the connecting plate 232, a pressing protrusion 2341 is disposed on the transmission rod 234, and when the transmission rod 234 moves back and forth relative to the connecting plate 232, the pressing protrusion 2341 can fit with one side of the limiting seat 233 away from the sliding lock cylinder 21 to press the limiting seat 233. The transmission rod 234 is in threaded connection with the connecting plate 232, so that the transmission rod 234 can move in the front-back direction, the transmission rod 234 drives the limiting seat 233 to move back and forth, and the adjusting device has the advantage of being convenient to adjust.

In this embodiment, the rear surface of the limiting seat 233 is provided with a pressing groove matched with the pressing protrusion 2341, and the pressing protrusion 2341 is located in the pressing groove.

As shown in fig. 2, the connecting plate 232 is provided with a guide bar 2321 extending in the front-rear direction, the stopper seat 233 has a guide groove 2331 extending in the front-rear direction, and the guide bar 2321 is inserted into the guide groove 2331. The guide rod 2321 and the guide groove 2331 are matched to form a guiding function on the limiting seat 233, so that the limiting seat 233 moves along the extending direction of the guide rod 2321, and the limiting seat 233 is prevented from deflecting in the moving process, so that the interference with the sliding lock cylinder 21 is avoided.

As shown in fig. 2 and 3, the second connecting assembly 30 further includes a second limiting member 31, the second limiting member 31 can be in limiting fit with the connecting rod 32 to limit the position of the connecting rod 32 relative to the second LED display unit 10, one side of the sliding lock cylinder 21 facing the first LED display unit 10 has a strip-shaped hole 213 disposed therethrough, the strip-shaped hole 213 extends along a preset sliding direction, a first end of the connecting rod 32 is provided with a connecting protrusion 321, and the connecting protrusion 321 can pass through the strip-shaped hole 213 to be connected with the sliding lock cylinder 21. By adopting the structure, in the sliding process of the sliding lock cylinder 21 along the preset sliding direction, the strip-shaped hole 213 can be used for avoiding the connecting rod 32, so that the sliding lock cylinder 21 cannot generate interference with the connecting rod 32 in the sliding process. In addition, the second limiting member 31 can be in limiting fit with the connecting rod 32, so as to limit the position of the connecting rod 32 relative to the second LED display unit 10, so that the angle between two adjacent LED display units 10 is maintained at the preset angle.

In this embodiment, the length of the connecting protrusion 321 is greater than the width of the strip-shaped hole 213, and the connecting protrusion 321 passes through the width of the strip-shaped hole 213 in the width direction of the connecting protrusion 321 during the process that the connecting protrusion 321 passes through the strip-shaped hole 213, and after passing through, the connecting rod 32 is rotated by 90 ° to connect the connecting rod 32 with the sliding lock cylinder 21 by using the inner wall of the sliding lock cylinder 21.

In this embodiment, the second limiting part includes a limiting knob, an external thread is provided on the side wall of the connecting rod 32, the limiting knob has a threaded hole, the threaded hole is in threaded connection with the external thread, and the limiting knob can be attached to the side wall of the second LED display unit. With the above structure, after the position of the sliding lock cylinder 21 is adjusted, and the connecting rod 32 is connected to the sliding lock cylinder 21, the position of the connecting rod 32 can be limited by the limit knob, and the connecting rod 32 can be held at a desired position.

As shown in fig. 2, the sliding lock cylinder 21 has a sliding cavity 214 communicated with the strip-shaped hole 213, the cavity wall of the sliding cavity 214 has a plurality of anti-rotation bosses 215 arranged at intervals, and the connecting protrusion 321 extends into the sliding cavity 214 and can be in limit fit with the corresponding anti-rotation bosses 215 to limit the rotation of the connecting protrusion 321. By adopting the structure, the connecting protrusion 321 is prevented from rotating by the limiting fit of the anti-rotating boss 215 and the connecting protrusion 321, so that the connecting rod 32 is prevented from being separated from the sliding lock cylinder 21, and the two LED display units 10 are prevented from being separated from each other.

In this embodiment, the sliding lock cylinder 21 is a box structure, the strip-shaped hole is disposed on the box wall of the side wall of the box structure facing the LED display unit 10, the driving rod 221 is disposed on the side of the box structure opposite to the strip-shaped hole 213, and for the convenience of sliding the sliding lock cylinder 21, the box wall is not disposed on the box on the side of the driving rod 221. In order to avoid the limit seat 233 when the sliding lock core 21 slides, the rear wall of the box body is provided with a curved surface structure. In addition, the rear surface of the stopper seat 233 is also provided with a curved surface structure to be avoided from the sliding lock cylinder 21.

As shown in fig. 1 and 4, a reminding protrusion 12 is disposed on the first LED display unit 10, a plurality of grooves 216 are disposed on the front surface of the sliding lock cylinder 21 at intervals, the arrangement direction of the grooves 216 is the same as the preset sliding direction, and the reminding protrusion 12 can be in limit fit with one of the grooves 216. When the sliding lock cylinder 21 is adjusted to the angle required by two adjacent LED display units 10, the reminding protrusion 12 is matched with the groove 216, so that a sound can be given, and an operator is reminded that the angle adjustment is finished.

As shown in fig. 3 and 7, the sliding key cylinder 21 is provided with a plurality of first indicating portions 217, the plurality of first indicating portions 217 correspond to the plurality of limiting step surfaces 42 one to one, and the first LED display unit 10 is fixedly provided with the second indicating portion 15, wherein when the sliding key cylinder 21 slides until one of the plurality of first indicating portions 217 aligns with the second indicating portion 15, the limiting protrusion 41 is abutted to the limiting step surface 42 corresponding to the first indicating portion 217. With the first and second indicating parts 217 and 15 aligned, the angle of adjustment of the adjacent two LED display units 10 can be indicated to the user, and corresponds to the angle between the adjacent two LED display units 10 that the limit projection 41 and the corresponding limit step face 42 limit.

As shown in fig. 1 and 4, a first sliding portion 11 is disposed on the first LED display unit 10, a second sliding portion 211 is disposed on the sliding key cylinder 21, the sliding key cylinder 21 is slidably connected to the second sliding portion 211 through the first sliding portion 11, and at least one of the first sliding portion 11 and the second sliding portion 211 extends along a preset sliding direction. The sliding lock cylinder 21 slides along the preset direction by matching the first sliding part 11 with the second sliding part 211, and the sliding lock cylinder has the advantages of simple structure and convenience in setting.

In the present embodiment, the first sliding portion 11 and the second sliding portion 211 each extend in the preset sliding direction.

As shown in fig. 1 and 2, the LED display unit 10 includes a box 13 and an LED module disposed at a front side of the box 13, the first connection assembly 20 is disposed at a rear surface of the box 13 of the first LED display unit 10, the second connection assembly 30 is disposed at a rear surface of the box 13 of the second LED display unit 10, a mounting groove 14 is disposed at the rear surface of the box 13 of the first LED display unit 10, the sliding lock cylinder 21 is slidably disposed in the mounting groove 14, the first sliding portion 11 includes a sliding groove disposed at a bottom of the mounting groove 14, the second sliding portion 211 includes a sliding bar disposed at a front surface of the sliding lock cylinder 21, and the sliding bar is disposed in the sliding groove and slides along an extending direction of the sliding groove. With the above structure, the sliding lock cylinder 21 is accommodated by the mounting groove 14, which has an advantage of facilitating the arrangement of the first coupling assembly 20.

It should be noted that the front surface of the sliding lock cylinder 21 is attached to the bottom of the mounting groove 14, and in the sliding process of the sliding lock cylinder 21 along the preset sliding direction, the sliding bar is inserted into the sliding groove and slides along the extending direction of the sliding groove, so that the sliding lock cylinder 21 can extend or retract relative to the side wall of the first LED display unit 10. During the sliding process of the sliding lock cylinder 21, the sliding lock cylinder 21 can be fully retracted into the first LED display unit 10, so as to facilitate the taking out and putting in of the box body 13 without causing interference to the installation of the LED module.

In the present embodiment, the connection plate 232 is disposed on the ceiling of the installation groove 14 and connected to the case 13, and the second indicator 15 is disposed on the connection plate 232.

The first sliding portion 11 is configured to extend along a straight line, and can facilitate the sliding of the sliding lock cylinder 21 and reduce the travel path thereof.

In the present embodiment, as shown in fig. 10, the limiting step surfaces 42 include 5 limiting step surfaces 01, 02, 03, 04, and 05, and an angle between two adjacent LED display units 10 can be limited by using one of the 5 limiting step surfaces 42 to cooperate with the corresponding limiting protrusion 41. The first indication parts 217 include 5 first indication parts 010, 020, 030, 040 and 050, and an angle between two adjacent LED display units 10 can be indicated by one of the 5 first indication parts 217 corresponding to the second indication part 15, so that a user is prompted about a specific angle between the two adjacent LED display units 10 at the time.

Specifically, the angle between the 05 faces corresponding to the two adjacent LED display units 10 is +10 °, and the 050 line indicates that the angle between the two adjacent LED display units 10 is +10 °; the angle between the 04 plane corresponding to two adjacent LED display units 10 is +5 °, and the line 040 indicates the angle between two adjacent LED display units 10 is +5 °; the angle between the 03 face corresponding to the two adjacent LED display units 10 is 0 °, and the 030 line indicates that the angle between the two adjacent LED display units 10 is 0 °; the 02 plane corresponds to the angle between two adjacent LED display units 10 to be-5 degrees, and the 020 line indicates that the angle between two adjacent LED display units 10 is-5 degrees; the 01 plane corresponds to an angle of-10 between two adjacent LED display units 10, and the 010 line indicates that the angle between two adjacent LED display units 10 is-10.

When the second indicating part 15 is aligned with the 050 line, the angle between two adjacent LED display units 10 is +10 degrees, and at the moment, the 05 surface is attached to the limiting protrusion 41; when the second indicating part 15 is aligned with the line 040, the angle between two adjacent LED display units 10 is +5 °, and at this time, the surface 04 is attached to the limiting protrusion 41; when the second indicating portion 15 is aligned with the 030 line, it indicates that the angle between two adjacent LED display units 10 is 0 °, and at this time, the 03 surface is attached to the limiting protrusion 41; when the second indicating part 15 is aligned with the line 020, the angle between two adjacent LED display units 10 is-5 degrees, and at the moment, the 02 surface is attached to the limiting protrusion 41; when the second indicating part 15 is aligned with the 010 line, it indicates that the angle between two adjacent LED display units 10 is-10 °, and at this time, the 01 face is attached to the position-limiting protrusion 41.

In the present embodiment, the number of the grooves 216 is set to 5, corresponding to the above-mentioned 5 angular adjustment positions.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An LED display screen, wherein the LED display screen comprises:

at least two LED display units (10);

the first connecting assembly (20) is arranged on the rear side of a first one of the two adjacent LED display units (10), the first connecting assembly (20) comprises a sliding lock cylinder (21) and a driving piece (22), the sliding lock cylinder (21) is in sliding connection with the first LED display unit (10), the driving piece (22) can drive the sliding lock cylinder (21) to slide along a preset sliding direction, and an included angle is formed between the preset sliding direction and the side wall of the first LED display unit (10);

the second connecting assembly (30) is arranged on the rear side of the second of the two adjacent LED display units (10), the second connecting assembly (30) comprises a connecting rod (32), and the first end of the connecting rod (32) can penetrate through the side wall of the second LED display unit (10) and is connected with the sliding lock cylinder (21);

the limiting structure (40) comprises a limiting protrusion (41) and a plurality of limiting step surfaces (42), the limiting protrusion (41) is arranged on the side wall, facing the sliding lock cylinder (21), of the second LED display unit (10), and the limiting step surfaces (42) are arranged on the outer side wall, facing the second LED display unit (10), of the sliding lock cylinder (21) at intervals;

the sliding lock cylinder (21) slides to drive the limiting step surfaces (42) to move, so that the limiting protrusion (41) can be selectively attached to one of the limiting step surfaces (42), and the angle between every two adjacent LED display units (10) is limited to a preset angle corresponding to the limiting step surface (42).

2. The LED display screen of claim 1, wherein the driving member (22) comprises a driving rod (221) rotatably disposed, the driving rod (221) is in driving engagement with the sliding lock cylinder (21) to convert the rotational movement of the driving rod (221) into the linear sliding movement of the sliding lock cylinder (21), the first connection assembly (20) further comprises a first limiting member (23), the first limiting member (23) comprises a connecting plate (232) and a limiting seat (233), the connecting plate (232) is connected with the rear side of the first LED display unit (10), the limiting seat (233) is movably disposed on the connecting plate (232) along the front-back direction, the driving rod (221) is located on the side of the limiting seat (233) facing the sliding lock cylinder (21), and the driving rod (221) can be pressed by the limiting seat (233) to limit the rotation of the driving rod (221), so as to limit the position of the sliding lock cylinder (21) relative to the first LED display unit (10).

3. The LED display screen according to claim 2, wherein a gear (222) is sleeved at an end of the driving rod (221), the sliding lock cylinder (21) is provided with a rack (212), the gear (222) is engaged with the rack (212), a limiting groove (231) is formed in one side of the limiting seat (233) facing the sliding lock cylinder (21), and the driving rod (221) and the gear (222) are rotatably arranged in the limiting groove (231).

4. The LED display screen according to claim 2, wherein the first limiting member (23) further comprises a transmission rod (234) extending in the front-back direction, the transmission rod (234) is in threaded connection with the connecting plate (232), a pressing protrusion (2341) is arranged on the transmission rod (234), and when the transmission rod (234) moves back and forth relative to the connecting plate (232), the pressing protrusion (2341) can be abutted against one side of the limiting seat (233) facing away from the sliding lock cylinder (21) to press the limiting seat (233).

5. The LED display screen according to claim 2, wherein the connecting plate (232) is provided with a guide bar (2321) extending in the front-back direction, the limiting seat (233) is provided with a guide groove (2331) extending in the front-back direction, and the guide bar (2321) is inserted into the guide groove (2331).

6. The LED display screen according to claim 1, wherein the second connecting assembly (30) further comprises a second limiting member (31), the second limiting member (31) can be in limit fit with the connecting rod (32) to limit the position of the connecting rod (32) relative to the second LED display unit (10), one side of the sliding lock cylinder (21) facing the second LED display unit (10) is provided with a strip-shaped hole (213) which is arranged in a penetrating manner, the strip-shaped hole (213) extends along the preset sliding direction, the first end of the connecting rod (32) is provided with a connecting protrusion (321), and the connecting protrusion (321) can penetrate through the strip-shaped hole (213) to be connected with the sliding lock cylinder (21).

7. The LED display screen according to claim 6, wherein the sliding lock cylinder (21) is provided with a sliding cavity (214) communicated with the strip-shaped hole (213), the cavity wall of the sliding cavity (214) is provided with a plurality of anti-rotation bosses (215) arranged at intervals, and the connecting protrusion (321) extends into the sliding cavity (214) and can be in limit fit with the corresponding anti-rotation bosses (215) to limit the rotation of the connecting protrusion (321).

8. The LED display screen according to claim 1, wherein a reminding protrusion (12) is arranged on the first LED display unit (10), a plurality of grooves (216) are arranged at intervals on the front surface of the sliding lock cylinder (21), the arrangement direction of the grooves (216) is the same as the preset sliding direction, and the reminding protrusion (12) can be in limit fit with one of the grooves (216).

9. The LED display screen according to claim 1, wherein a plurality of first indicating portions (217) are provided on the sliding lock cylinder (21), the plurality of first indicating portions (217) correspond to the plurality of limiting step surfaces (42) one by one, and a second indicating portion (15) is fixedly provided on a first LED display unit (10), wherein when the sliding lock cylinder (21) slides until one of the plurality of first indicating portions (217) is aligned with the second indicating portion (15), the limiting protrusion (41) is attached to the limiting step surface (42) corresponding to the first indicating portion (217).

10. The LED display screen according to claim 1, wherein a first sliding portion (11) is disposed on a first one of the LED display units (10), a second sliding portion (211) is disposed on the sliding key cylinder (21), the sliding key cylinder (21) is slidably connected to the second sliding portion (211) through the first sliding portion (11), and at least one of the first sliding portion (11) and the second sliding portion (211) is disposed to extend along the preset sliding direction.

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