CN115995188A

CN115995188A - LED display screen

Info

Publication number: CN115995188A
Application number: CN202310192859.6A
Authority: CN
Inventors: 吴愉强
Original assignee: Zibo Jucheng Tiance Electronic Technology Co ltd
Current assignee: Zibo Jucheng Tiance Electronic Technology Co ltd
Priority date: 2023-03-03
Filing date: 2023-03-03
Publication date: 2023-04-21

Abstract

The invention discloses an LED display screen, which relates to the technical field of display screens and comprises a display screen body, wherein a bottom plate is arranged on the display screen body, a shielding component and a reciprocating component are arranged on the bottom plate, the shielding component comprises shielding cloth, a mounting frame is fixedly arranged on the bottom plate, a winding roller is arranged in the mounting frame, the shielding cloth is wound on the winding roller, the reciprocating component comprises a reciprocating screw rod, sliding grooves are formed in two sides of the bottom plate, and the reciprocating screw rod is rotatably arranged on the inner wall of the sliding grooves; the invention has the beneficial effects that: the shielding component is wound through the shielding cloth by the torsion spring, then the reciprocating screw and the compression plate drive the shielding cloth to cover the display screen body, the shielding cloth not only plays a role in sunshade and dust prevention, but also plays a role in advertising, so that damage to the display screen body caused by insolation is avoided as much as possible, and the service life of the device is prolonged.

Description

LED display screen

Technical Field

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

Background

The LED display screen is a display mode by controlling the semiconductor light emitting diodes, and is composed of tens of thousands to hundreds of thousands of semiconductor light emitting diode pixel points which are uniformly arranged. The LED display screen can be used for manufacturing LED pixel points with different colors by using different materials so as to display various information such as characters, graphics, images, animation, quotations, videos, video signals and the like, and the LED display screen is often in the air-blowing and sun-drying environment in the outdoor daytime.

The invention patent publication No. CN115294885A, its name is an LED display screen, the device slides in the guide rail through electronic slider, and then electronic slider passes through link assembly drive collar and revolving post and reciprocate for the revolving post drives flexible layer and rolls on the display screen surface, clears up the filth on display screen surface, improves the aesthetic measure of display screen, and clearance process convenient and fast, need not the staff and has the risk of high altitude construction to clear up the display screen, improves the security of clearance work.

The device has the advantages that the device is inconvenient to shield and protect the LED display screen in the daytime, the LED display screen is not used frequently in the daytime generally, the LED display screen is in the outdoor environment which is always in the windy and sunny environment, the sun exposure of sunlight is easy to damage the display screen body, and the service life of the device is influenced, so that the LED display screen capable of solving the problems is provided.

Disclosure of Invention

The invention aims to provide an LED display screen, which solves the following technical problems:

the LED display screen is not convenient to shield and protect, the LED display screen is not used frequently in daytime generally, the LED display screen is in the outdoor environment of blowing and sunning frequently, the exposure of sunlight causes damage to the display screen body easily, and the service life of the device is affected.

The aim of the invention can be achieved by the following technical scheme:

the utility model provides a LED display screen, includes the display screen body, be provided with the bottom plate on the display screen body, be provided with on the bottom plate and shelter from subassembly and reciprocal subassembly, shelter from the subassembly and including shelter from the cloth, fixed mounting has the mounting bracket on the bottom plate, be provided with the wind-up roll in the mounting bracket, shelter from cloth winding and install on the wind-up roll, reciprocal subassembly includes reciprocal screw rod, the spout has been seted up on the both sides of bottom plate, reciprocal screw rod rotates and installs on the inner wall of spout, two the screw thread runs through on the reciprocal screw rod and installs the slider, two one side fixed mounting that the bottom plate was kept away from to the slider has electric telescopic handle, two electric telescopic handle is kept away from the one end fixed mounting of slider has the compression board, be provided with the cleaning brush on the compression board, shelter from the one end fixed mounting that the wind-up roll was kept away from to the cloth is provided with fixed unit on the compression board, be provided with drive unit on the bottom plate, be provided with spacing subassembly on the bottom plate.

As a further scheme of the invention: the driving unit comprises a motor, a driving groove is formed in one end, close to the wind-up roller, of the bottom plate, two belt pulleys are rotatably mounted on the inner wall of the driving groove, the motor is fixedly mounted on one of the belt pulleys, a belt is mounted between the two belt pulleys, and rotating shafts of the two belt pulleys are fixedly mounted on two reciprocating screws in a sliding penetrating manner through sliding grooves.

As a further scheme of the invention: the fixing unit comprises a fixing screw, a connecting plate is installed on one side, far away from the electric telescopic rod, of the compression plate in a rotating mode, fixing screw threads penetrate through the connecting plate and are installed on one end, far away from the compression plate, of the connecting plate, the fixing screw is installed on one end, close to the compression plate, of the fixing screw in a rotating mode, and a rubber pad is fixed on one end, far away from the fixing screw, of the fixing plate.

As a further scheme of the invention: the compression plate is provided with a limiting groove, a cleaning brush is inserted in the limiting groove, and the bottom surface of the sliding block is in sliding fit with the inner bottom wall of the sliding groove.

As a further scheme of the invention: the inner wall of the mounting rack, which is close to the wind-up roller, is fixedly provided with a torsion spring and a connecting rod, the other end of the connecting rod is rotatably arranged on the wind-up roller, the other end of the torsion spring is fixedly arranged on the wind-up roller, and the torsion spring is nested and arranged on the outer surface of the connecting rod.

As a further scheme of the invention: one side fixed mounting that the bottom plate was kept away from to the mounting bracket has telescopic link and first spring, the one end fixed mounting that the mounting bracket was kept away from to the telescopic link has the stabilizer, the one end fixed mounting that the telescopic link was kept away from to the stabilizer has the limiting plate, limiting plate fixed mounting is on one side that the limiting plate is close to the display screen body, one end fixed mounting that the mounting bracket was kept away from to first spring is on the stabilizer, first spring nest is installed on the surface of telescopic link.

As a further scheme of the invention: the mounting groove is formed in one side, close to the display screen body, of the bottom plate, and the display screen body is mounted in the mounting groove.

As a further scheme of the invention: the limiting assembly comprises a limiting rod, a movable groove is formed in the bottom plate, the limiting rod penetrates through the movable groove in a sliding mode and is inserted into the mounting groove, a baffle is fixedly mounted on the limiting rod, a second spring is fixedly mounted on one side, away from the mounting groove, of the baffle, a limiting hole is formed in a position, corresponding to the limiting rod, of the display screen body, and the baffle and the second spring are mounted in the limiting rod.

As a further scheme of the invention: the second spring is nested to be installed on the surface of gag lever post, the gag lever post is installed into in the spacing hole, fixed mounting has the stopper on the inner wall of gag lever post one side is kept away from to the mounting groove, rectangular channel has been seted up on the display screen body in the position corresponding to the stopper, the stopper slides and inserts into rectangular channel.

The invention has the beneficial effects that:

(1) The shielding component is rolled up through the shielding cloth by the torsion spring, then the reciprocating screw and the compression plate drive the shielding cloth to cover the display screen body, and when the display screen body is not used in daytime, the shielding cloth not only plays a role in shading sun and preventing dust, but also plays a role in advertising, so that damage to the display screen body caused by insolation is avoided as much as possible, and the service life of the device is prolonged;

(2) The reciprocating assembly drives the sliding block to slide on the bottom plate through the reciprocating screw rod, so that the compression plate is convenient to pull the shielding cloth out of the winding roller, operation and use are convenient, meanwhile, the compression plate drives the cleaning brush to reciprocate on the display screen body, cleaning of the display screen body is convenient, the reciprocating motion is convenient, dust is prevented from affecting the using effect of the display screen body as much as possible, and the cleaning capability of the device is improved;

(3) The limiting assembly drives the baffle to extrude the second spring through pulling the limiting rod, simultaneously, the limiting rod is contracted into the movable groove, then the display screen body is taken to enable the limiting block to be inserted into the rectangular groove, simultaneously, the display screen body is installed into the installation groove, then the limiting rod is loosened, the limiting rod is enabled to be inserted into the limiting hole, the display screen body is conveniently limited and fixed, the installation and the disassembly are convenient, the installation work efficiency of the device is improved, the disassembly and the maintenance are convenient, and the disassembly and the maintenance work efficiency of the device are improved.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of the overall structure of an LED display screen according to the present invention;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1 at A;

FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1;

FIG. 4 is a schematic view of the internal structure of an LED display screen according to the present invention;

FIG. 5 is an enlarged schematic view of the structure at C in FIG. 4;

FIG. 6 is a schematic view of a bottom view of an LED display screen according to the present invention;

fig. 7 is an enlarged schematic view of the structure at D in fig. 6.

In the figure: 1. a bottom plate; 2. a mounting groove; 3. a display screen body; 4. a shielding assembly; 41. a mounting frame; 42. a connecting rod; 43. a torsion spring; 44. a wind-up roll; 45. a shielding cloth; 46. a telescopic rod; 47. a first spring; 48. a stabilizing plate; 49. a limiting plate; 5. a reciprocating assembly; 51. a chute; 52. a reciprocating screw; 53. a slide block; 54. an electric telescopic rod; 55. a compression plate; 56. a connecting plate; 57. a fixed screw; 58. a fixing plate; 59. a cleaning brush; 510. a limit groove; 511. a rubber pad; 512. a belt pulley; 513. a belt; 514. a motor; 6. a limit component; 61. a limit rod; 62. a baffle; 63. a movable groove; 64. a second spring; 65. a limiting hole; 66. a limiting block; 67. rectangular grooves.

Detailed Description

The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-7, the invention is an LED display screen, comprising a display screen body 3, a bottom plate 1 is arranged on the display screen body 3, a mounting groove 2 is arranged on one side of the bottom plate 1 close to the display screen body 3, the display screen body 3 is arranged in the mounting groove 2, a shielding component 4 and a reciprocating component 5 are arranged on the bottom plate 1, the shielding component 4 comprises shielding cloth 45, a mounting bracket 41 is fixedly arranged on the bottom plate 1, a wind-up roll 44 is arranged in the mounting bracket 41, the shielding cloth 45 is winded and arranged on the wind-up roll 44, the shielding cloth 45 plays a role of shielding the display screen, when the display screen body 3 is not used in daytime, advertisements can be printed on the shielding cloth 45, the shielding cloth 45 is opened to play a role of sun-shading and dust prevention, the reciprocating component 5 comprises a reciprocating screw 52, sliding grooves 51 are arranged on two sides of the bottom plate 1, the reciprocating screw rods 52 are rotatably arranged on the inner wall of the sliding groove 51, the sliding blocks 53 are arranged on the two reciprocating screw rods 52 in a threaded penetrating way, the sliding blocks 53 slide in the sliding groove 51, one sides of the two sliding blocks 53 far away from the bottom plate 1 are fixedly provided with the electric telescopic rods 54, one ends of the two electric telescopic rods 54 far away from the sliding blocks 53 are fixedly provided with the compression plates 55, the electric telescopic rods 54 push the compression plates 55 to enable the compression plates 55 to extrude the stabilizing plates 48 to move upwards, the compression plates 55 are provided with the cleaning brushes 59, the cleaning brushes 59 play a role of cleaning dust on the surface of the display screen body 3, the situation that dust influences the using effect of the display screen body 3 is avoided as much as possible, one ends of the shielding cloth 45 far away from the winding rollers 44 are fixedly arranged on the compression plates 55, the shielding cloth 45 is pulled down from the winding rollers 44 under the driving of the reciprocating screw rods 52, the compression plates 55 are provided with the fixing units, a driving unit is arranged on the bottom plate 1, and a limiting component 6 is arranged on the bottom plate 1.

The driving unit comprises a motor 514, a driving groove is formed in one end, close to the wind-up roller 44, of the bottom plate 1, two belt pulleys 512 are rotatably mounted on the inner wall of the driving groove, the motor 514 is fixedly mounted on one of the belt pulleys 512, a belt 513 is mounted between the two belt pulleys 512, rotating shafts of the two belt pulleys 512 are fixedly mounted on the two reciprocating screw rods 52 in a sliding mode through penetrating through the sliding grooves 51 in a sliding mode, the motor 514 drives the two belt pulleys 512 to synchronously move through the belt 513, meanwhile, the two belt pulleys 512 drive the reciprocating screw rods 52 to synchronously move, the sliding block 53 slides in the sliding grooves 51, the electric telescopic rod 54 is conveniently driven to slide on the sliding grooves 51, adjustment and use are facilitated, and frequent manual operation is avoided as much as possible.

The fixing unit comprises a fixing screw 57, a connecting plate 56 is rotatably arranged on one side, far away from the electric telescopic rod 54, of the compression plate 55, a fixing screw 57 is installed on one end, far away from the compression plate 55, of the connecting plate 56 in a threaded penetrating mode, a fixing plate 58 is rotatably arranged on one end, close to the compression plate 55, of the fixing screw 57, the fixing screw 57 drives the fixing plate 58 and a rubber pad 511 to extrude a cleaning brush 59, the cleaning brush 59 is conveniently fixed in a limiting groove 510, stability of the device is improved, the rubber pad 511 is fixedly arranged on one end, far away from the fixing screw 57, of the fixing plate 58, the rubber pad 511 plays a role in skid resistance, the limiting groove 510 is formed in the compression plate 55, the cleaning brush 59 is inserted in the limiting groove 510, the bottom surface of the sliding block 53 is in sliding fit with the inner bottom wall of the sliding groove 51, and the sliding block 53 is prevented from sliding and shifting on the reciprocating screw 52 as far as possible.

The inner wall of the mounting frame 41 close to the wind-up roller 44 is fixedly provided with a torsion spring 43 and a connecting rod 42, the other end of the connecting rod 42 is rotatably arranged on the wind-up roller 44, the other end of the torsion spring 43 is fixedly arranged on the wind-up roller 44, the torsion spring 43 plays a role in driving the wind-up roller 44 to wind up the shielding cloth 45, the torsion spring 43 is nested and arranged on the outer surface of the connecting rod 42, the connecting rod 42 plays a role in supporting and stabilizing the torsion spring 43, one side of the mounting frame 41 far away from the bottom plate 1 is fixedly provided with a telescopic rod 46 and a first spring 47, the telescopic rod 46 plays a role in stabilizing and installing a stabilizing plate 48, one end of the telescopic rod 46 far away from the mounting frame 41 is fixedly provided with a stabilizing plate 48, one end of the stabilizing plate 48 far away from the telescopic rod 46 is fixedly provided with a limiting plate 49, the limiting plate 49 plays a role in limiting and compressing plate 55, the limiting plate 49 is fixedly arranged on one side of the limiting plate 49 close to the display screen body 3, the first spring 47 is fixedly arranged on the stabilizing plate 48 at one end far away from the mounting frame 41, the stabilizing plate 48 plays a role in positioning and extruding the shielding cloth 45, the condition that wind scrapes the shielding cloth 45 is avoided as much as possible, the stability of the shielding cloth 45 is improved, the first spring 47 is arranged on the outer surface of the telescopic rod 46 in a nested mode, the first spring 47 plays a role in driving the stabilizing plate 48 to elastically reset, when the device is used, firstly, the cleaning brush 59 is inserted into the limiting groove 510, then the connecting plate 56 is rotated, the connecting plate 56 drives the fixing screw 57 to move onto the cleaning brush 59, then the fixing screw 57 is screwed, the fixing screw 57 pushes the fixing plate 58 and the rubber pad 511 to extrude the cleaning brush 59, then the cleaning brush 59 is fixed on the compression plate 55, then the electric telescopic rod 54 is started, the electric telescopic rod 54 drives the compression plate 55 to extrude the stabilizing plate 48, the stabilizing plate 48 stretches the telescopic rod 46 and the first spring 47 under the action of external force, the telescopic rod 46 and the first spring 47 are in a stretching state, the compression plate 55 drives the cleaning brush 59 to move to the same level as the display screen body 3, then the motor 514 is started, the output end of the motor 514 drives one of the pulleys 512 to rotate, simultaneously one of the pulleys 512 drives the other pulley 512 to rotate through the belt 513, simultaneously the two pulleys 512 drive the two reciprocating screws 52 to synchronously move, simultaneously the reciprocating screws 52 drive the sliding blocks 53 to slide in the sliding grooves 51, simultaneously the sliding blocks 53 drive the electric telescopic rod 54 and the compression plate 55 to move on the bottom plate 1, simultaneously the compression plate 55 pulls the shielding cloth 45 out of the winding roller 44, simultaneously the winding roller 44 rotates on the connecting rod 42, the winding roller 44 pulls the torsion spring 43, simultaneously the compression plate 55 drives the shielding cloth 45 to rotate the display screen body 3, simultaneously the compression plate 55 slides on the stabilizing plate 48, when the other pulley 512 is driven to rotate through the belt 513, simultaneously the elastic force of the torsion spring 43 drives the winding roller 44 to wind the shielding cloth 45, the shielding cloth 45 to be conveniently used, simultaneously, the shielding cloth 45 is not beneficial to the effect of the shielding cloth 45 is used, the service life of the device is prolonged, the device is further beneficial to the improvement of the dust-proof device, the dust-proof device is beneficial to the service life of the advertisement device, and the device is prolonged, and the service life of the device is prolonged.

Example two

The limiting component 6 comprises a limiting rod 61, a movable groove 63 is arranged on the bottom plate 1, the limiting rod 61 penetrates through the movable groove 63 in a sliding manner and is inserted into the mounting groove 2, a baffle 62 is fixedly arranged on the limiting rod 61, the baffle 62 plays a role in limiting and stabilizing the limiting rod 61, a second spring 64 is fixedly arranged on one side of the baffle 62 away from the mounting groove 2, a limiting hole 65 is arranged at a position, corresponding to the limiting rod 61, on the display screen body 3, the baffle 62 and the second spring 64 are arranged in the limiting rod 61, the limiting rod 61 plays a role in limiting and stabilizing the display screen body 3, one end of the second spring 64 away from the baffle 62 is fixedly arranged on the inner wall of the second spring 64, the second spring 64 is nested and arranged on the outer surface of the limiting rod 61, the second spring 64 plays a role in driving the limiting rod 61 to elastically reset, the limiting rod 61 is inserted into the limiting hole 65, the inner wall of one side of the mounting groove 2 far away from the limiting rod 61 is fixedly provided with a limiting block 66, the position, corresponding to the limiting block 66, of the display screen body 3 is provided with a rectangular groove 67, the limiting block 66 is slidably inserted into the rectangular groove 67, the effect of further limiting and stabilizing the display screen body 3 is achieved, when the device is used, firstly, the limiting rod 61 is pulled, the limiting rod 61 drives the baffle plate 62 to extrude the second spring 64, the second spring 64 is in an extrusion state, meanwhile, the baffle plate 62 slides in the movable groove 63 and contracts the limiting rod 61 into the movable groove 63, then the display screen body 3 is moved, the rectangular groove 67 is aligned with the limiting block 66, the display screen body 3 is pushed, the limiting block 66 is inserted into the rectangular groove 67, meanwhile, the display screen body 3 is installed into the mounting groove 2, then the limiting rod 61 is released, the baffle plate 62 is driven to be inserted into the limiting hole 65 under the elastic force of the second spring 64, the display screen body 3 is convenient to spacing fixed, and easy to assemble dismantles, is favorable to improving the work efficiency of the installation of device, and convenient dismantlement maintenance is favorable to improving the work efficiency of the maintenance of device dismantlement.

The working principle of the invention is as follows: when the device is used, the limiting rod 61 is pulled firstly, the limiting rod 61 drives the baffle plate 62 to press the second spring 64, the second spring 64 is in a pressing state, meanwhile, the baffle plate 62 slides in the movable groove 63 and the limiting rod 61 is contracted into the movable groove 63, then the display screen body 3 is taken to align the rectangular groove 67 with the limiting block 66, the display screen body 3 is pushed, the limiting block 66 is inserted into the rectangular groove 67, meanwhile, the display screen body 3 is installed into the installation groove 2, then the limiting rod 61 is loosened, the baffle plate 62 drives the limiting rod 61 to be inserted into the limiting hole 65 under the elastic force of the second spring 64, then the cleaning brush 59 is inserted into the limiting groove 510, then the connecting plate 56 is rotated, the connecting plate 56 drives the fixing screw 57 to move onto the cleaning brush 59, then the fixing screw 57 is screwed, the fixing screw 57 pushes the fixing plate 58 and the rubber pad 511 to press the cleaning brush 59, then fixing the cleaning brush 59 on the compression plate 55, then starting the electric telescopic rod 54, enabling the electric telescopic rod 54 to drive the compression plate 55 to squeeze the stabilizing plate 48, enabling the stabilizing plate 48 to stretch the telescopic rod 46 and the first spring 47 under the action of external force, enabling the telescopic rod 46 and the first spring 47 to be in a stretching state, enabling the compression plate 55 to drive the cleaning brush 59 to move on the same level as the display screen body 3, then starting the motor 514, enabling the output end of the motor 514 to drive one belt pulley 512 to rotate, enabling one belt pulley 512 to drive the other belt pulley 512 to rotate through a belt 513, enabling the two belt pulleys 512 to drive the two reciprocating screws 52 to synchronously move, enabling the reciprocating screws 52 to drive the sliding blocks 53 to slide in the sliding grooves 51, enabling the sliding blocks 53 to drive the electric telescopic rod 54 and the compression plate 55 to move on the bottom plate 1, simultaneously make the compression board 55 will shelter from cloth 45 from wind-up roll 44 pull out, make wind-up roll 44 rotate on connecting rod 42 simultaneously, make wind-up roll 44 pulling torsional spring 43, simultaneously make the compression board 55 drive shelter from cloth 45 and cover display screen body 3, simultaneously make the compression board 55 slide on stabilizing plate 48, convenient operation uses, when shelter from cloth 45 and withdraw, the elastic force of torsional spring 43 drives wind-up roll 44 and will shelter from cloth 45 and get up, convenient recycling.

The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.

Claims

1. An LED display screen, comprising a display screen body (3), characterized in that: the utility model discloses a display screen body (3) is provided with bottom plate (1), be provided with on bottom plate (1) and shelter from subassembly (4) and reciprocal subassembly (5), shelter from subassembly (4) including shelter from cloth (45), fixed mounting has mounting bracket (41) on bottom plate (1), be provided with wind-up roll (44) in mounting bracket (41), shelter from cloth (45) winding and install on wind-up roll (44), reciprocal subassembly (5) include reciprocal screw rod (52), spout (51) have been seted up on the both sides of bottom plate (1), reciprocal screw rod (52) rotate and install on the inner wall of spout (51), two reciprocal screw rod (52) go up the screw thread and run through and install slider (53), two one side fixed mounting that slider (53) kept away from bottom plate (1) has electric telescopic handle (54), two one end fixed mounting that slider (53) were kept away from to electric telescopic handle (54) has compression board (55), be provided with on compression board (55), shelter from on compression board (45) keep away from wind-up roll (44) and keep away from on compression unit (55), and a limiting component (6) is arranged on the bottom plate (1).

2. An LED display screen as set forth in claim 1, wherein: the driving unit comprises a motor (514), a driving groove is formed in one end, close to the wind-up roll (44), of the bottom plate (1), two belt pulleys (512) are rotatably mounted on the inner wall of the driving groove, the motor (514) is fixedly mounted on one of the belt pulleys (512), a belt (513) is mounted between the two belt pulleys (512), and rotating shafts of the two belt pulleys (512) penetrate through the sliding groove (51) in a sliding mode to be fixedly mounted on the two reciprocating screw rods (52).

3. An LED display screen as set forth in claim 1, wherein: the fixing unit comprises a fixing screw (57), a connecting plate (56) is rotatably arranged on one side, far away from the electric telescopic rod (54), of the compression plate (55), the fixing screw (57) is installed on one end, far away from the compression plate (55), of the connecting plate (56) in a threaded penetrating mode, a fixing plate (58) is rotatably arranged on one end, close to the compression plate (55), of the fixing screw (57), and a rubber pad (511) is fixed on one end, far away from the fixing screw (57), of the fixing plate (58).

4. An LED display screen as set forth in claim 1, wherein: the compression plate (55) is provided with a limit groove (510), a cleaning brush (59) is inserted in the limit groove (510), and the bottom surface of the sliding block (53) is in sliding fit with the inner bottom wall of the sliding groove (51).

5. An LED display screen as set forth in claim 1, wherein: the novel winding machine is characterized in that a torsional spring (43) and a connecting rod (42) are fixedly installed on the inner wall, close to the winding roller (44), of the mounting frame (41), the other end of the connecting rod (42) is rotatably installed on the winding roller (44), the other end of the torsional spring (43) is fixedly installed on the winding roller (44), and the torsional spring (43) is installed on the outer surface of the connecting rod (42) in a nested mode.

6. An LED display screen as set forth in claim 5, wherein: one side fixed mounting that bottom plate (1) was kept away from to mounting bracket (41) has telescopic link (46) and first spring (47), one end fixed mounting that mounting bracket (41) was kept away from to telescopic link (46) has stabilizer plate (48), one end fixed mounting that telescopic link (46) was kept away from to stabilizer plate (48) has limiting plate (49), limiting plate (49) fixed mounting is on one side that limiting plate (49) is close to display screen body (3), one end fixed mounting that mounting bracket (41) was kept away from to first spring (47) is on stabilizer plate (48), first spring (47) nest install on the surface of telescopic link (46).

7. An LED display screen as set forth in claim 6, wherein: one side of the bottom plate (1) close to the display screen body (3) is provided with a mounting groove (2), and the display screen body (3) is mounted in the mounting groove (2).

8. The LED display screen of claim 7, wherein: limiting component (6) are including gag lever post (61), movable groove (63) have been seted up on bottom plate (1), gag lever post (61) slip runs through movable groove (63) and inserts in mounting groove (2), fixed mounting has baffle (62) on gag lever post (61), one side fixed mounting that mounting groove (2) was kept away from to baffle (62) has second spring (64), limiting hole (65) have been seted up on the position corresponding with gag lever post (61) on display screen body (3), baffle (62) and second spring (64) are installed in gag lever post (61).

9. The LED display screen of claim 8, wherein: one end fixed mounting that baffle (62) was kept away from to second spring (64) is on the inner wall of second spring (64), second spring (64) nest install on the surface of gag lever post (61), in gag lever post (61) were installed in spacing hole (65), fixed mounting has stopper (66) on the inner wall that gag lever post (61) one side was kept away from to mounting groove (2), rectangular channel (67) have been seted up on display screen body (3) in the position corresponding to stopper (66), stopper (66) are installed in the rectangular channel (67) in the slip.