LED display screen

Abstract

The utility model belongs to the technical field of display screens, and particularly relates to an LED display screen which comprises at least one display screen module, a display screen unit comprises a display screen body, a frame, a first splicing assembly and a second splicing assembly, and the frame comprises a first connecting edge, a second connecting edge, a third connecting edge and a fourth connecting edge. The first connecting edge and the third connecting edge are oppositely arranged, the second connecting edge and the fourth connecting edge are oppositely arranged, and for three display screen units in the same display screen module, the first splicing assembly of the middle display screen unit is used for connecting the first connecting edge of the frame and the third connecting edge of the display screen unit adjacent to the first connecting edge; the second splicing assembly of the middle display screen unit is used for connecting the second connecting edge of the frame of the middle display screen unit with the fourth connecting edge of the display screen unit adjacent to the second connecting edge. The adjacent display screen units in the same display screen module can be spliced together through the first splicing assemblies and the second splicing assemblies.

Description

Technical Field

[0001] The utility model belongs to the technical field of display screens, and in particular relates to an LED display screen. Background Art

[0002] LED display is an electronic device that can use different materials to create LED pixels of different colors to display text, graphics, images and other information.

[0003] An existing LED display screen includes a display screen body, a frame and a back cover. The display screen body is installed in the frame. The shell is connected to the display screen body. The display screen body is used to display audio and video information. The back cover is connected to the frame. The back cover and the display screen body are located on different sides of the frame respectively. The back cover covers the side of the display screen body facing the back cover to prevent external debris from contaminating the display screen body.

[0004] In order to display more information, the existing LED display screen needs to expand the size of the display screen body. Therefore, it is necessary to design a new type of LED display screen to meet the demand of splicing multiple display screen bodies together to expand the size of the display screen body. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an LED display screen to meet the demand of splicing a plurality of display screen main bodies together to expand the size of the display screen main body.

[0006] In order to solve the above technical problems, the embodiment of the utility model provides an LED display screen, including at least one display screen module, the display screen module is assembled from three display screen units, the display screen unit includes a display screen body, a frame, a first splicing component and a second splicing component, the frame includes a first connecting edge, a second connecting edge, a third connecting edge and a fourth connecting edge connected to each other, the first connecting edge is arranged opposite to the third connecting edge, and the second connecting edge is arranged opposite to the fourth connecting edge;

[0007] For the three display screen units in the same display screen module, the first splicing component of the middle display screen unit is used to connect the first connecting edge of its frame with the third connecting edge of the display screen unit adjacent to the first connecting edge, and the second splicing component of the middle display screen unit is used to connect the second connecting edge of its frame with the fourth connecting edge of the display screen unit adjacent to the second connecting edge.

[0008] Optionally, the three display screen units in the same display screen module are arranged in an L shape.

[0009] Optionally, the first splicing assembly includes a lock seat assembly connected to the third connecting edge and a lock body assembly connected to the first connecting edge.

[0010] The lock seat assembly includes a locking plate and a lock seat connected to the third connecting edge, a sliding cavity is provided in the lock seat, and the locking plate is slidably assembled in the sliding cavity, the lock body assembly includes a locking rod and a locking piece, the end of the locking rod close to the third connecting edge passes through the first connecting edge and the third connecting edge in sequence, and extends into the sliding cavity, the end of the locking rod extending into the sliding cavity is provided with a clamping structure, the clamping structure is used to clamp and cooperate with the locking plate, the locking piece is sleeved on the end of the locking rod away from the first connecting edge, the locking piece can move along the locking rod toward the first connecting edge, and is used to clamp the first connecting edge and the third connecting edge between the lock seat and the locking piece.

[0011] Optionally, an annular groove is provided at one end of the locking rod extending into the sliding cavity, and a through hole is provided on the locking plate, the diameter of the through hole is larger than the diameter of the locking rod, and a locking hole is provided on the edge of the hole of the through hole. The lock body assembly also includes a first driving member arranged in the sliding cavity, and the locking plate is driven to slide in the sliding cavity by the first driving member so that the locking hole is engaged with the annular groove, thereby locking the locking rod in the sliding cavity.

[0012] Optionally, the locking rod is assembled with the first connecting edge to prevent rotation, the locking piece is provided with an internal threaded hole, the end of the locking rod away from the lock seat is provided with an external thread, and the locking piece is screwed onto the locking rod. By rotating the locking piece, the locking piece is moved toward the first connecting edge and pressed against the first connecting edge.

[0013] Optionally, the lock body assembly further includes a stop pin, a stop groove is provided on the lock rod, a stop hole is provided on the first connecting edge, and the stop pin is inserted into the stop groove and the stop hole.

[0014] Optionally, the second splicing assembly includes an arc lock, through which the angle between the second connecting edge and the fourth connecting edge can be adjusted.

[0015] Optionally, it further includes a power box and a connection component, the connection component includes a first connection structure connected to the power box and a second connection structure connected to the frame, and the first connection structure is connected to the second connection structure.

[0016] Optionally, the second connecting structure includes a snap-in groove arranged on the frame, and the first connecting structure includes a snap-in pin and a second driving member connected to the power box, and the second driving member can drive the snap-in pin to snap-fit ​​with the snap-in groove to install the power box on the frame.

[0017] Optionally, the frame is provided with a mounting plate and a clamping block, the clamping block comprises a connected connecting portion and a clamping portion, the connecting portion is vertically connected to the mounting plate, the connecting portion is provided with an arc-shaped long groove, the clamping portion blocks an end of the arc-shaped long groove away from the frame, the clamping portion is cantilevered on the connecting portion, and a side of the clamping portion away from the connecting portion is provided with an arc-shaped short groove, two clamping blocks are provided, the two clamping blocks are arranged at intervals, the arc-shaped long grooves of the two connecting portions are arranged oppositely, the two arc-shaped long grooves, the two clamping portions and the mounting plate together form the clamping groove, and the arc-shaped short grooves of the two clamping blocks are arranged oppositely to form an avoidance gap;

[0018] The snap-in pin includes a first axis and a second axis that are perpendicular to each other. The second axis is located on a side of the power box facing the mounting plate. One end of the first axis is connected to the second axis. The other end of the first axis is exposed on a side of the power box facing away from the mounting plate. The second axis is used to extend into the snap-in groove through the avoidance gap. An end of the first axis away from the second axis is connected to the second driving member. The second driving member can drive the first axis to rotate to drive the second axis to rotate, so that the two ends of the second axis are respectively facing the two arc-shaped long grooves, and the second axis is against the side of the snap-in portion facing the mounting plate.

[0019] According to the LED display screen of the embodiment of the utility model, adjacent display screen units in the same display screen module can be spliced ​​together through the first splicing component and the second splicing component to expand the size of the display screen body of the LED display screen and display more information. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of an LED display screen provided by an embodiment of the utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure of the display screen unit;

[0022] Figure 3 for Figure 1 An exploded schematic diagram of the first splicing component;

[0023] Figure 4 for Figure 2 The structural diagram of the middle frame;

[0024] Figure 5 for Figure 4 A is an enlarged schematic diagram;

[0025] Figure 6 This is a schematic diagram of the structure of the power supply box 2;

[0026] Figure 7 for Figure 6 The enlarged schematic diagram of point B in FIG.

[0027] Figure 8 for Figure 2 Schematic diagram of the structure of the middle knob;

[0028] Fig. 9 It is a schematic diagram of the assembly of the knob and the bayonet pin.

[0029] The accompanying drawings in the specification are as follows: 1. display screen module; 2. display screen unit; 3. frame; 4. first splicing assembly; 5. second splicing assembly; 6. first connecting edge; 7. second connecting edge; 8. third connecting edge; 9. fourth connecting edge; 10. power supply box; 11. display screen body; 12. locking rod; 13. locking member; 14. locking seat; 15. sliding cavity; 16. locking sheet; 17. locking part; 18. perforation; 19. clamping hole; 20. driving part; 21. second spring; 22. annular groove; 23. external thread; 24. Anti-rotation groove; 25, anti-rotation hole; 26, anti-rotation pin; 27, internal threaded hole; 28, mounting plate; 29, clamping block; 30, connecting part; 31, arc-shaped long groove; 32, clamping part; 33, arc-shaped short groove; 34, avoidance gap; 35, clamping groove; 36, mounting groove; 37, arc-shaped slide rail; 38, positioning groove; 39, limit block; 40, knob; 41, positioning column; 42, limit groove; 43, through hole; 44, first spring; 45, arc-shaped lock; 46, clamping pin; 47, first axis; 48, second axis; 49, screw. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0031] like Figures 1 to 9 As shown, an embodiment of the utility model provides an LED display screen, including at least one display screen module 1, wherein the display screen module 1 is assembled from three display screen units 2, wherein the display screen unit 2 includes a display screen body 11, a frame 3, a first splicing component 4 and a second splicing component 5, wherein the frame 3 includes a first connecting edge 6, a second connecting edge 7, a third connecting edge 8 and a fourth connecting edge 9 which are connected to each other, wherein the first connecting edge 6 is arranged opposite to the third connecting edge 8, and the second connecting edge 7 is arranged opposite to the fourth connecting edge 9.

[0032] The three display screen units 2 in the same display screen module 1, the first splicing component 4 of the middle display screen unit 2 is used to connect the first connecting edge 6 of its frame 3 and the third connecting edge 8 of the display screen unit 2 adjacent to the first connecting edge 6, and the second splicing component 5 of the middle display screen unit 2 is used to connect the second connecting edge 7 of its frame 3 and the fourth connecting edge 9 of the display screen unit 2 adjacent to the second connecting edge 7

[0033] In one embodiment, the three display screen units 2 in the same display screen module 1 are arranged in an L shape. In addition, in the same LED display screen, adjacent display screen modules 1 are also assembled by the first splicing component 4 and the second splicing component 5 on the display screen unit 2.

[0034] In one embodiment, the first splicing assembly 4 includes a lock seat assembly connected to the third connecting edge 8 and a lock body assembly connected to the first connecting edge 6 .

[0035] The lock seat assembly includes a locking plate 16 and a lock seat 14 for connecting to the third connecting edge 8, a sliding cavity 15 is provided in the lock seat 14, and the locking plate 16 is slidably assembled in the sliding cavity 15, the lock body assembly includes a locking rod 12 and a locking piece 13, the end of the locking rod 12 close to the third connecting edge 8 passes through the first connecting edge 6 and the third connecting edge 8 in sequence, and extends into the sliding cavity 15, the end of the locking rod 12 extending into the sliding cavity 15 is provided with a clamping structure, and the clamping structure is used to clamp and cooperate with the locking plate 16, the locking piece 13 is sleeved on the end of the locking rod 12 away from the first connecting edge 6, and the locking piece 13 can move along the locking rod 12 toward the first connecting edge 6, and is used to clamp the first connecting edge 6 and the third connecting edge 8 between the lock seat 14 and the locking piece 13. Specifically, a through hole 43 is provided on one side of the lock seat 14 , and the lock piece 16 includes a locking portion 17 located in the sliding cavity 15 and a driving portion 20 extending out of the through hole 43 .

[0036] In one embodiment, an annular groove 22 is provided at one end of the locking rod 12 extending into the sliding cavity 15, and the annular groove 22 forms the clamping structure. A through hole 18 is provided on the locking plate 16, and the diameter of the through hole 18 is larger than the diameter of the locking rod 12. A clamping hole 19 is provided on the edge of the through hole 18. The lock body assembly also includes a first driving member arranged in the sliding cavity 15, and the locking plate 16 is driven to slide in the sliding cavity 15 by the first driving member so that the clamping hole 19 is clamped with the annular groove 22, so as to lock the locking rod 12 in the sliding cavity 15.

[0037] The first driving member is a first spring 44, which is connected between the locking portion 17 and the cavity wall of the sliding cavity 15. When two connected display screen units 2 need to be assembled through the first splicing assembly 4, the locking portion 17 is driven to slide in the sliding cavity 15 by pressing the driving portion 20 of the locking plate 16, so that the through hole 18 on the locking plate 16 is aligned with the hole on the first connecting edge 6 for the locking rod 12 to pass through. At this time, the first spring 44 is compressed, and then the locking rod 12 is extended into the sliding cavity 15 through the first connecting edge 6 and the second connecting edge 7. Then, the driving portion 20 of the locking plate 16 is released, and the first spring 44 drives the locking plate 16 to move toward the locking rod 12 while restoring its deformation, so that the locking hole 19 on the locking plate 16 is engaged with the annular groove 22 on the locking rod 12, so as to lock the locking rod 12 in the sliding cavity 15.

[0038] In one embodiment, the locking rod 12 is assembled with the first connecting edge 6 to prevent rotation, the locking member 13 is provided with an internal threaded hole 27, the end of the locking rod 12 away from the locking seat 14 is provided with an external thread 23, the locking member 13 is screwed onto the locking rod 12, and the locking member 13 is rotated to move toward the first connecting edge 6 and press against the first connecting edge 6. Specifically, when the first connecting edge 6 and the third connecting edge 8 need to be clamped, the locking rod 12 cannot be rotated because the locking rod 12 is assembled with the first connecting edge 6 to prevent rotation, and therefore, the locking member 13 is rotated to move the locking member 13 close to the first connecting edge 6, so that the locking member 13 and the locking seat 14 clamp the first connecting edge 6 and the third connecting edge 8.

[0039] In one embodiment, the lock body assembly further includes a stop pin 26, a stop groove 24 is provided on the lock rod 12, a stop hole 25 is provided on the first connecting edge 6, and the stop pin 26 is inserted into the stop groove 24 and the stop hole 25. A rotation groove is provided at one end of the stop pin 26 away from the first connecting edge 6, and the stop pin 26 can be driven to rotate through the rotation groove.

[0040] In one embodiment, the anti-rotation groove 24 is a long groove extending axially along the locking rod 12, and the lock body assembly also includes a second spring 21, which is connected between the locking member 13 and the first connecting edge 6. When the locking member 13 clamps the first connecting edge 6, the second spring 21 is compressed. When the driving part 20 of the locking plate 16 is pressed to drive the locking plate 16 to move in a direction away from the locking rod 12, the locking hole 19 on the locking plate 16 is unlocked from the annular groove 22 on the locking rod 12, and the locking rod 12 loses its restraint in the axial direction. In the process of restoring the deformation, the second spring 21 drives the locking member 13 to drive the locking rod 12 to withdraw from the sliding cavity 15.

[0041] In one embodiment, the second splicing assembly 5 includes an arc lock 45 , through which the angle between the second connecting edge 7 and the fourth connecting edge 9 can be adjusted.

[0042] In one embodiment, the LED display screen further includes a power box 10 and a connection assembly, wherein the connection assembly includes a first connection structure connected to the power box 10 and a second connection structure connected to the frame 3, wherein the first connection structure is connected to the second connection structure. The display screen main body 11 in the display screen unit 2 is electrically connected to the power box 10, and the power box 10 supplies power to the display screen main body 11.

[0043] In one embodiment, the second connecting structure includes a snap-in groove 35 arranged on the frame 3, and the first connecting structure includes a snap-in pin 46 and a second driving member connected to the power box 10, and the second driving member can drive the snap-in pin 46 to snap-fit ​​with the snap-in groove 35 to install the power box 10 on the frame 3.

[0044] In one embodiment, a mounting plate 28 and a clamping block are provided on the frame 3, and the clamping block includes a connected connecting portion 30 and a clamping portion 32, the connecting portion 30 is vertically connected to the mounting plate 28, an arc-shaped long groove 31 is provided on the connecting portion 30, the clamping portion 32 blocks the end of the arc-shaped long groove 31 away from the frame 3, the clamping portion 32 is cantilevered on the connecting portion 30, and an arc-shaped short groove 33 is provided on the side of the clamping portion 32 away from the connecting portion 30, and two clamping blocks are provided, the two clamping blocks are arranged at intervals, the arc-shaped long grooves 31 of the two connecting portions are arranged oppositely, the two arc-shaped long grooves 31, the two clamping portions 32 and the mounting plate 28 together form the clamping groove 35, and the arc-shaped short grooves 33 of the two clamping blocks are arranged oppositely to form an avoidance gap 34.

[0045] The snap-in pin 46 includes a first axis 47 and a second axis 48 which are perpendicular to each other. The second axis 48 is located on the side of the power box 10 facing the mounting plate 28. One end of the first axis 47 is connected to the second axis 48. The other end of the first axis 47 is exposed on the side of the power box 10 facing away from the mounting plate 28. The second axis 48 is used to extend into the snap-in groove 35 through the avoidance gap 34. The end of the first axis 47 away from the second axis 48 is connected to the second driving member. The second driving member can drive the first axis 47 to rotate to drive the second axis 48 to rotate, so that the two ends of the second axis 48 are respectively facing the two arc-shaped long grooves 31, and the second axis 48 is against the side of the snap-in portion 32 facing the mounting plate 28.

[0046] In one embodiment, the second driving member is a knob 40, and a mounting groove 36 for accommodating the knob 40 is provided on the side of the power box 10 facing away from the frame 3, and an arc-shaped slide rail 37 is provided at the bottom of the mounting groove 36, and positioning grooves 38 are provided at both ends of the arc-shaped slide rail 37, and the angle between the two positioning grooves 38 is 90°, and a limit block 39 is provided on the extension line of the arc-shaped slide rail 37, and a positioning column 41 is provided on the side of the knob 40 facing the mounting groove 36, and a limit groove 42 is provided on the circumferential edge of the side of the knob 40 facing the mounting groove 36, and the limit groove 42 cooperates with the limit block 39 to limit the rotation range of the knob 40 The circumference is limited to 90°. The knob 40 is connected to the first shaft 47 of the snap-in pin 46 by a screw 49. By rotating the knob 40, the first shaft 47 drives the second shaft 48 to rotate. When the positioning column 41 of the knob 40 moves along the arc-shaped slide rail 37 and is inserted into the positioning groove 38, the two ends of the second shaft 48 face the two arc-shaped long grooves 31. At this time, the two sides of the second shaft 48 are respectively against the snap-in parts 32 of the two snap-in blocks 29. The snap-in parts 32 stop the second shaft 48 to prevent the second shaft 48 from coming out from between the two snap-in blocks, thereby locking the knob 40 and the snap-in blocks, and then fixing the power box 10 on the mounting plate 28. The second shaft and the knob

[0047] The working principle of the LED display screen of the present utility model embodiment is as follows:

[0048] When it is necessary to assemble two connected display screen units 2 through the first splicing component 4, the locking portion 17 is driven to slide in the sliding cavity 15 by pressing the driving portion 20 of the locking plate 16, so that the through hole 18 on the locking plate 16 is exactly opposite to the hole on the first connecting edge 6 for the locking rod 12 to pass through. At this time, the first spring 44 is compressed, and then the locking rod 12 is extended into the sliding cavity 15 through the first connecting edge 6 and the second connecting edge 7. Then, the driving portion 20 of the locking plate 16 is released, and the first spring 44 drives the locking plate 16 to move toward the locking rod 12 while restoring its deformation, so that the locking hole 19 on the locking plate 16 is engaged with the annular groove 22 on the locking rod 12 to lock the locking rod 12 in the sliding cavity 15, and then the locking piece 13 is rotated to move the locking piece 13 close to the first connecting edge 6, so that the locking piece 13 and the lock seat 14 clamp the first connecting edge 6 and the third connecting edge 8.

[0049] When disassembly is required, the driving part 20 of the locking plate 16 is pressed to drive the locking plate 16 to move in a direction away from the locking rod 12, the locking hole 19 on the locking plate 16 is unlocked from the annular groove 22 on the locking rod 12, the locking rod 12 loses its restraint in the axial direction, and the second spring 21 drives the locking member 13 to drive the locking rod 12 to withdraw from the sliding cavity 15 during the process of restoring its deformation.

[0050] According to the LED display screen of the embodiment of the utility model, adjacent display screen units 2 in the same display screen module 1 can be spliced ​​together through the first splicing component 4 and the second splicing component 5 to expand the size of the display screen body 11 of the LED display screen and display more information.

[0051] In other embodiments, the three display screen units 2 in the same display screen module 1 are distributed in a straight line.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An LED display screen, characterized in that: The invention comprises at least one display screen module (1), wherein the display screen module (1) is assembled from three display screen units (2), wherein the display screen unit (2) comprises a display screen body (11), a frame (3), a first splicing assembly (4) and a second splicing assembly (5), wherein the frame (3) comprises a first connecting edge (6), a second connecting edge (7), a third connecting edge (8) and a fourth connecting edge (9) which are connected to each other, wherein the first connecting edge (6) and the third connecting edge (8) are arranged opposite to each other, and the second connecting edge (7) and the fourth connecting edge (9) are arranged opposite to each other; For the three display screen units (2) in the same display screen module (1), a first splicing component (4) of the middle display screen unit (2) is used to connect a first connecting edge (6) of its frame (3) with a third connecting edge (8) of the display screen unit (2) adjacent to the first connecting edge (6), and a second splicing component (5) of the middle display screen unit (2) is used to connect a second connecting edge (7) of its frame (3) with a fourth connecting edge (9) of the display screen unit (2) adjacent to the second connecting edge (7).

2. The LED display screen according to claim 1, characterized in that: The three display screen units (2) in the same display screen module (1) are arranged in an L shape.

3. The LED display screen according to claim 2, characterized in that: The first splicing assembly (4) comprises a lock seat assembly connected to the third connecting edge (8) and a lock body assembly connected to the first connecting edge (6); The lock seat assembly comprises a lock plate (16) and a lock seat (14) for connecting to the third connecting edge (8); a sliding cavity (15) is provided in the lock seat (14); the lock plate (16) is slidably assembled in the sliding cavity (15); the lock body assembly comprises a lock rod (12) and a locking member (13); an end of the lock rod (12) close to the third connecting edge (8) passes through the first connecting edge (6) and the third connecting edge (8) in sequence and extends into the sliding cavity (15); One end of the locking rod (12) extending into the sliding cavity (15) is provided with a snap-fit ​​structure, and the snap-fit ​​structure is used to snap-fit ​​with the locking plate (16). The locking piece (13) is sleeved on the end of the locking rod (12) away from the first connecting edge (6). The locking piece (13) can move along the locking rod (12) toward the first connecting edge (6) to clamp the first connecting edge (6) and the third connecting edge (8) between the lock seat (14) and the locking piece (13).

4. The LED display screen according to claim 3, characterized in that: An annular groove (22) is provided at one end of the locking rod (12) extending into the sliding cavity (15), and a through hole (18) is provided on the locking plate (16). The diameter of the through hole (18) is larger than the diameter of the locking rod (12). A locking hole (19) is provided on the edge of the through hole (18). The lock body assembly also includes a first driving member arranged in the sliding cavity (15), and the locking plate (16) is driven to slide in the sliding cavity (15) by the first driving member so that the locking hole (19) is engaged with the annular groove (22) to lock the locking rod (12) in the sliding cavity (15).

5. The LED display screen according to claim 4, characterized in that: The locking rod (12) is assembled with the first connecting edge (6) to prevent rotation, the locking member (13) is provided with an internal thread hole (27), the end of the locking rod (12) away from the lock seat (14) is provided with an external thread (23), the locking member (13) is screwed onto the locking rod (12), and the locking member (13) is rotated to move toward the first connecting edge (6) and press against the first connecting edge (6).

6. The LED display screen according to claim 5, characterized in that: The lock body assembly also includes a stop pin (26), a stop groove (24) is provided on the lock rod (12), a stop hole (25) is provided on the first connecting edge (6), and the stop pin (26) is inserted into the stop groove (24) and the stop hole (25).

7. The LED display screen according to any one of claims 1 to 6, characterized in that: The second splicing assembly (5) comprises an arc-shaped lock (45), and the angle between the second connecting edge (7) and the fourth connecting edge (9) can be adjusted by means of the arc-shaped lock (45).

8. The LED display screen according to claim 1, characterized in that: It also includes a power box (10) and a connection component, wherein the connection component includes a first connection structure connected to the power box (10) and a second connection structure connected to the frame (3), and the first connection structure is connected to the second connection structure.

9. The LED display screen according to claim 8, characterized in that: The second connecting structure includes a snap-in groove (35) arranged on the frame (3), and the first connecting structure includes a snap-in pin (46) and a second driving member connected to the power box (10), and the second driving member can drive the snap-in pin (46) to snap-fit ​​with the snap-in groove (35) so as to install the power box (10) on the frame (3).

10. The LED display screen according to claim 9, characterized in that: The frame (3) is provided with a mounting plate (28) and a clamping block (29), the clamping block (29) comprising a connecting portion (30) and a clamping portion (32) connected to each other, the connecting portion (30) being vertically connected to the mounting plate (28), the connecting portion (30) being provided with an arc-shaped long groove (31), the clamping portion (32) blocking an end of the arc-shaped long groove (31) away from the frame (3), the clamping portion (32) being cantilevered on the connecting portion (30), the clamping portion (32) being A side of the portion (32) away from the connecting portion (30) is provided with an arc-shaped short groove (33), two of the clamping blocks are provided, the two clamping blocks are arranged at intervals, the arc-shaped long grooves (31) of the two connecting portions (30) are arranged opposite to each other, the two arc-shaped long grooves (31), the two clamping portions (32) and the mounting plate (28) together form the clamping groove (35), and the arc-shaped short grooves (33) of the two clamping blocks (29) are arranged opposite to each other to form an avoidance gap (34); The snap-in pin (46) includes a first axis (47) and a second axis (48) which are perpendicular to each other. The second axis (48) is located on the side of the power box (10) facing the mounting plate (28). One end of the first axis (47) is connected to the second axis (48). The other end of the first axis (47) is exposed on the side of the power box (10) facing away from the mounting plate (28). The second axis (48) is used to extend into the snap-in groove (35) through the avoidance gap (34). The end of the first axis (47) away from the second axis (48) is connected to the second driving member. The second driving member can drive the first axis (47) to rotate to drive the second axis (48) to rotate, so that the two ends of the second axis (48) are respectively facing the two arc-shaped long grooves (31), and the second axis (48) is against the side of the snap-in portion (32) facing the mounting plate (28).

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