CN216046535U

CN216046535U - LED screen support with cleaning function

Info

Publication number: CN216046535U
Application number: CN202121981168.7U
Authority: CN
Inventors: 邹天远
Original assignee: Chengdu Jinyuechuang Information Technology Co ltd
Current assignee: Chengdu Jinyuechuang Information Technology Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-03-15
Anticipated expiration: 2031-08-23

Abstract

The utility model discloses an LED screen bracket with a cleaning function, which comprises a fixed box, wherein an LED screen mounting plate is arranged in the position, close to the middle position, of an inner cavity of the fixed box, an LED screen embedding groove is formed in the inner cavity of the LED screen mounting plate, a cleaning mechanism is arranged, and through mutual matching of a limiting rod, a movable plate, a connecting plate, a pull ring, a first spring and a sponge brush, the sponge brush is conveniently driven to clean dust attached to the surface of a display screen, so that the definition of the display screen is improved, the LED screen bracket is provided with a lifting mechanism and an adjusting mechanism, through mutual matching of a cam, a rotating rod, a movable gear, a hand wheel, a clamping gear, a second spring, a bolt, an inclined rod, a rotating handle, a T-shaped rod, a third spring, a side plate, a fixed plate, a cross rod, an L-shaped plate, a rack plate, a rectangular frame and a turntable, the height and the angle of the display screen are conveniently adjusted, thereby improving the utility of the device.

Description

LED screen support with cleaning function

Technical Field

The utility model relates to the technical field of LED screens, in particular to an LED screen support with a cleaning function.

Background

The LED screen is all infected with the dust easily when indoor or outdoor use, carries out the normal demonstration that influences the LED screen easily, also is not convenient for guarantee the definition of LED screen simultaneously, reduces display screen life's problem easily, so take clean function's LED screen support consequently and born.

Because the LED screen support of traditional clean function in area, at the in-process that uses, be not convenient for clear up the LED screen to the definition that leads to the LED screen is relatively poor, traditional device does not have the device that can adjust the height and the angle of display screen simultaneously, thereby leads to the practicality of device poor.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides an LED screen bracket with a cleaning function.

One of the purposes of the utility model is realized by adopting the following technical scheme:

a LED screen support with a cleaning function comprises a fixed box, wherein an LED screen mounting plate is arranged in a position, close to the middle, of an inner cavity of the fixed box, an LED screen embedding groove is formed in the inner cavity of the LED screen embedding groove, a display screen is arranged in the inner cavity of the LED screen mounting plate, a bearing plate is fixedly connected to the bottom of the LED screen mounting plate, first sliding blocks are fixedly connected to the left side and the right side of the bearing plate respectively, first sliding grooves matched with the first sliding blocks are formed in the left side and the right side of the inner cavity of the fixed box respectively, the two first sliding blocks are movably connected in inner cavities of adjacent first sliding grooves respectively, a lifting mechanism is arranged at the bottom of the bearing plate, an opening is formed in the front side of the fixed box, a cleaning mechanism is arranged at the front side of the fixed box, an adjusting mechanism is arranged at the rear side of the fixed box, a bearing plate is arranged at the bottom of the fixed box, and rectangular plates are fixedly connected to the left side and the right side of the fixed box respectively, the bottom of two rectangular plates all with loading board fixed connection, two the equal fixedly connected with first bearing in one side that the rectangular plate is relative, two the inner chamber of first bearing all pegs graft there is the fixed axle, two the relative one end of fixed axle respectively with the left and right sides fixed connection of fixed case.

Further, elevating system includes the bull stick, the bull stick sets up the bottom department at the bearing plate, the fixed incasement chamber left and right sides is close to the equal fixedly connected with second bearing of bottom department, peg graft the inner chamber at adjacent second bearing in the left end of bull stick, the right-hand member of bull stick runs through the inner chamber of adjacent second bearing to the hand wheel of fixedly connected with, the outside of bull stick is close to about the equal fixedly connected with cam of both ends department, and two the cam all is located the inner chamber of fixed case.

Furthermore, a movable gear is sleeved at the position, close to the right end, of the outer side of the rotating rod, a clamping gear is meshed at the top of the movable gear, the left side of the clamping gear is fixedly connected with a movable rod, the left end of the movable rod is fixedly connected with a second sliding block, a second sliding groove matched with a second sliding block is arranged at the position, close to the bottom, of the right side of the fixed box, the second sliding block is movably connected in an inner cavity of the second sliding groove, the top of the movable rod is fixedly connected with a sliding plate, the right side of the sliding plate close to the top is provided with a through hole, a bolt penetrates through the inner cavity of the through hole, a second spring is sleeved outside the bolt, the left end and the right end of the second spring are respectively fixedly connected with the sliding plate and the bolt, two blind holes are formed in the left side of the inner cavity of the second sliding chute, and the two blind holes are arranged up and down, and the left end of the plug pin is inserted in the inner cavity of the blind hole at the bottom.

Further, clearance mechanism includes the connecting plate, connecting plate fixed connection is in the top front side department of fixed case, the bottom of connecting plate is close to the first spring of intermediate position department fixedly connected with a plurality of, a plurality of the common fixedly connected with movable plate in bottom of first spring, the front side of movable plate is close to intermediate position department fixedly connected with montant, the bottom fixedly connected with pull ring of montant, the rear side fixedly connected with connecting rod of movable plate, the rear end fixedly connected with sponge brush of connecting rod, be close to left and right sides department on the movable plate and all seted up the through-hole, two the inner chamber of through-hole all runs through and is equipped with the gag lever post, two the equal fixedly connected with backup pad in below department of the relative one side of gag lever post, two relative one sides of backup pad all with fixed case fixed connection.

Further, adjustment mechanism includes the curb plate, curb plate fixed connection is in loading board top rear side department, the front side of curb plate is close to top department and is equipped with the turning handle, the bottom fixedly connected with transfer line of turning handle, the front side of curb plate is close to intermediate position department fixedly connected with limiting plate, the top of limiting plate is close to front side department fixedly connected with third bearing, the inner chamber of third bearing is run through to the bottom of transfer line to fixedly connected with carousel, the outside edge fixedly connected with a plurality of toothblock of carousel, the outside of carousel is equipped with the rectangle frame, the equal fixedly connected with rack plate in the inner chamber left and right sides department of rectangle frame, the carousel meshes with the rectangle frame that is located the right side through a plurality of toothblock.

Further, the left and right sides department of rectangle frame all is equipped with the fixed plate, two the bottom of fixed plate all with loading board fixed connection, the equal fixedly connected with third slider in the left and right sides department of rectangle frame, two the third spout with third slider assorted, two all been seted up to the one side that the fixed plate is relative the inner chamber of third slider swing joint at adjacent third spout respectively, the front side fixedly connected with horizontal pole of rectangle frame, the front end fixedly connected with L shaped plate of horizontal pole, the four sliders of bottom fixedly connected with of L shaped plate, the fourth spout with fourth slider assorted is seted up at the top of loading board, fourth slider swing joint is at the inner chamber of fourth spout, the top of L shaped plate articulates there is the down tube, the one end that the L shaped plate was kept away from to the down tube is articulated with the rear side of fixed box.

Furthermore, a notch is formed in the position, close to the top, of the front side of the side plate, a third spring is fixedly connected to the front side of the inner cavity of the notch, a T-shaped rod is fixedly connected to the front end of the third spring, a plurality of grooves matched with the T-shaped rod are formed in the edge of the outer side of the rotating handle, the front end of the T-shaped rod is inserted into the inner cavity of one of the grooves, and a shifting piece is fixedly connected to the position, close to the middle position, of the top of the T-shaped rod.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the cleaning mechanism is arranged, and the limiting rod, the moving plate, the connecting plate, the pull ring, the first spring and the sponge brush are matched with each other, so that the sponge brush is conveniently driven to clean dust attached to the surface of the display screen, and the definition of the display screen is improved;

2. the height and the angle of the display screen can be conveniently adjusted by arranging the lifting mechanism and the adjusting mechanism and mutually matching the cam, the rotating rod, the movable gear, the hand-operated wheel, the clamping gear, the second spring, the bolt, the inclined rod, the rotating handle, the T-shaped rod, the third spring, the side plate, the fixed plate, the transverse rod, the L-shaped plate, the rack plate, the rectangular frame and the turntable, so that the practicability of the device is improved.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a front sectional view of the present embodiment;

FIG. 2 is a partial right side view of the present embodiment;

FIG. 3 is a partial top view of the fixing plate of the present embodiment;

fig. 4 is an enlarged view of fig. 1 a of the present embodiment.

In the figure: 1. a carrier plate; 2. a fixed box; 3. a cleaning mechanism; 30. a limiting rod; 31. moving the plate; 32. a connecting plate; 33. a pull ring; 34. a first spring; 35. a sponge brush; 4. a display screen; 5. a lifting mechanism; 50. a cam; 51. a rotating rod; 52. a movable gear; 53. a hand-operated wheel; 54. a blocking gear; 55. a second spring; 56. a bolt; 6. a bearing plate; 7. an adjustment mechanism; 70. a diagonal bar; 71. a handle is rotated; 72. a T-shaped rod; 73. a third spring; 74. a side plate; 75. a fixing plate; 76. a cross bar; 77. an L-shaped plate; 78. a rack plate; 79. a rectangular frame; 790. a turntable.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, an LED screen bracket with a cleaning function comprises a fixed box 2, an LED screen mounting plate is arranged in a position close to the middle of an inner cavity of the fixed box 2, an LED screen embedding slot is formed in the inner cavity of the LED screen mounting plate, a bearing plate 6 is fixedly connected to the bottom of the LED screen mounting plate of the display screen 4 in the inner cavity of the LED screen embedding slot, first sliding blocks are fixedly connected to the left and right sides of the bearing plate 6, first sliding grooves matched with the first sliding blocks are formed in the left and right sides of the inner cavity of the fixed box 2, the two first sliding blocks are respectively movably connected to the inner cavities of the adjacent first sliding grooves, a lifting mechanism 5 is arranged at the bottom of the bearing plate 6, an opening is formed in the front side of the fixed box 2, a cleaning mechanism 3 is arranged at the front side of the fixed box 2, an adjusting mechanism 7 is arranged at the rear side of the fixed box 2, a bearing plate 1 is arranged at the bottom of the fixed box 2, rectangular plates are fixedly connected to the left and right sides of the fixed box 2, the bottoms of the two rectangular plates are fixedly connected with the bearing plate 1, the opposite sides of the two rectangular plates are fixedly connected with first bearings, the inner cavities of the two first bearings are respectively inserted with a fixed shaft, and the opposite ends of the two fixed shafts are respectively fixedly connected with the left side and the right side of the fixed box 2;

the lifting mechanism 5 comprises a rotating rod 51, the rotating rod 51 is arranged at the bottom of the bearing plate 6, the left side and the right side of the inner cavity of the fixed box 2 are both fixedly connected with a second bearing near the bottom, the left end of the rotating rod 51 is inserted into the inner cavity of the adjacent second bearing, the right end of the rotating rod 51 penetrates through the inner cavity of the adjacent second bearing and is fixedly connected with a hand wheel 53, a movable gear 52 is sleeved at the position, near the right end, of the outer side of the rotating rod 51, a clamping gear 54 is meshed at the top of the movable gear 52, a movable rod is fixedly connected at the left side of the clamping gear 54, a second sliding block is fixedly connected at the left end of the movable rod, a second sliding groove matched with the second sliding block is formed at the position, near the bottom, of the right side of the fixed box 2, the second sliding block is movably connected in the inner cavity of the second sliding groove, a sliding plate is fixedly connected at the top of the movable rod, a through hole is formed at the position, a bolt 56 penetrates through the through hole, a second spring 55 is sleeved outside the bolt 56, the left end and the right end of the second spring 55 are respectively fixedly connected with the sliding plate and the bolt 56, two blind holes are formed in the left side of the inner cavity of the second sliding chute, the two blind holes are vertically arranged, the left end of the bolt 56 is inserted into the inner cavity of the blind hole in the bottom, and the hand rocking wheel 53 is conveniently fixed, so that the rotation of the hand rocking wheel is avoided by accident, the cams 50 are fixedly connected to the outer side of the rotating rod 51 close to the left end and the right end, and the two cams 50 are both located in the inner cavity of the fixed box 2, so that the height of the display screen 4 is conveniently adjusted;

the cleaning mechanism 3 comprises a connecting plate 32, the connecting plate 32 is fixedly connected to the front side of the top of the fixed box 2, a plurality of first springs 34 are fixedly connected to the bottom of the connecting plate 32 close to the middle position, a movable plate 31 is fixedly connected to the bottom ends of the first springs 34 together, a vertical rod is fixedly connected to the front side of the movable plate 31 close to the middle position, a pull ring 33 is fixedly connected to the bottom end of the vertical rod, a connecting rod is fixedly connected to the rear side of the movable plate 31, a sponge brush 35 is fixedly connected to the rear end of the connecting rod, through holes are formed in the movable plate 31 close to the left side and the right side, limiting rods 30 are arranged in the inner cavities of the two through holes in a penetrating mode, supporting plates are fixedly connected to the lower portions of the opposite sides of the two limiting rods 30, and the opposite sides of the two supporting plates are fixedly connected with the fixed box 2, so that dust attached to the display screen 4 can be cleaned conveniently, and the definition of the display screen 4 is improved;

the adjusting mechanism 7 comprises a side plate 74, the side plate 74 is fixedly connected to the rear side of the top of the bearing plate 1, a rotating handle 71 is arranged at the position, close to the top, of the front side of the side plate 74, a slot is formed in the position, close to the top, of the front side of an inner cavity of the slot, a third spring 73 is fixedly connected to the front side of the inner cavity of the slot, a T-shaped rod 72 is fixedly connected to the front side of the third spring 73, a plurality of grooves matched with the T-shaped rod 72 are formed in the edge of the outer side of the rotating handle 71, the front end of the T-shaped rod 72 is inserted into an inner cavity of one of the grooves, a shifting sheet is fixedly connected to the position, close to the middle position, of the top of the T-shaped rod 72, the rotating handle 71 is conveniently fixed, the rotating handle is prevented from being accidentally rotated, the stability of the display screen 4 is influenced, a transmission rod is fixedly connected to the bottom of the rotating handle 71, a limiting plate is fixedly connected to the position, a third bearing is fixedly connected to the position, close to the position of the top of the limiting plate, close to the front side, the bottom end of the transmission rod penetrates through the inner cavity of the third bearing and is fixedly connected with a rotary disc 790, the edge of the outer side of the rotary disc 790 is fixedly connected with a plurality of tooth blocks, the outer side of the rotary disc 790 is provided with a rectangular frame 79, the left side and the right side of the inner cavity of the rectangular frame 79 are fixedly connected with rack plates 78, the rotary disc 790 is meshed with the rectangular frame 79 on the right side through the plurality of tooth blocks, the left side and the right side of the rectangular frame 79 are respectively provided with a fixed plate 75, the bottoms of the two fixed plates 75 are respectively and fixedly connected with the bearing plate 1, the left side and the right side of the rectangular frame 79 are respectively and fixedly connected with third sliding blocks, one side opposite to the two fixed plates 75 is respectively provided with a third sliding groove matched with the third sliding block, the two third sliding blocks are respectively and movably connected with the inner cavity of the adjacent third sliding grooves, the front side of the rectangular frame 79 is fixedly connected with a cross bar 76, the front end of the cross bar 76 is fixedly connected with an L-shaped plate 77, and the bottom of the L-shaped plate 77 is fixedly connected with four sliding blocks, the top of loading board 1 is seted up with fourth slider assorted fourth spout, fourth slider swing joint is at the inner chamber of fourth spout, and the top of L shaped plate 77 articulates there is down tube 70, and the one end that L shaped plate 77 was kept away from to down tube 70 is articulated with the rear side of fixed case 2, is convenient for adjust the angle of display screen 4 to improve the effect that display screen 4 watched.

The working principle is as follows: firstly, in the using process, when the height of the display screen 4 needs to be adjusted, the bolt 56 is pulled rightwards, the bolt 56 is far away from the inner cavity of the blind hole through the extension of the second spring 55, then the sliding plate is moved upwards, the sliding plate can drive the movable rod to move upwards under the limit of the second sliding block and the second sliding groove, the movable rod can drive the clamping gear 54 to move upwards through moving upwards so as not to be meshed with the movable gear 52, then the pulled bolt 56 is released, so that the bolt 56 is inserted into the inner cavity of the top blind hole under the action of the elastic force of the second spring 55, then the hand-operated wheel 53 is rotated, the hand-operated wheel 53 can drive the rotating rod 51 to rotate, the rotating rod 51 can drive the two cams 50 to rotate, when the two cams 50 rotate to be in contact with the bearing plate 6, the bearing plate 6 can be pushed to move upwards under the limit of the first sliding block and the first sliding groove, so as to drive the display screen 4 to move upwards, when the height is adjusted to be proper, the bolt 56 is pulled to be inserted into the inner cavity positioned in the blind hole at the bottom, the clamping gear 54 is enabled to be continuously meshed with the movable gear 52, the hand rocking wheel 53 is fixed, and the hand rocking wheel is prevented from rotating accidentally, when the angle of the display screen 4 needs to be adjusted, the shifting sheet is shifted backwards, the shifting sheet moves backwards, so that the T-shaped rod 72 is driven to move backwards and is extruded and contracted by the third spring 73, the T-shaped rod 72 moves backwards to be far away from the inner cavity of the groove, then a worker rotates the rotating handle 71, the rotating handle 71 is rotated to drive the rotating disc 790 to rotate, the rotating disc 790 rotates to be meshed with the rack plates 78 at the left side and the right side back and forth through a plurality of tooth blocks, when the rotating disc is meshed with the rack plate 78 at the right side, the rectangular frame 79 is driven to move forwards under the limit of the third sliding chute and the third sliding chute, the rectangular frame 79 moves forwards to drive the L-shaped plate 77 to move forwards under the limit of the fourth sliding block and the fourth sliding chute through the cross rod 76, then the inclined rod 70 drives the display screen 4 to turn forwards, when the inclined rod is meshed with the rack plate 78 on the left side, the display screen 4 is driven to turn backwards, so that the angle of the display screen 4 can be adjusted according to the requirement, after the angle is adjusted to a proper angle, the rotation handle 71 stops rotating, then the poking piece is loosened, the T-shaped rod 72 is inserted into the inner cavity of one groove under the action of the elastic force of the third spring 73, so that the rotation handle 71 is continuously limited, the accidental rotation of the rotating handle is avoided, the stability of the display screen 4 during viewing is influenced, because the surface of the display screen 4 can be adhered with dust in long-time use, the pull ring 33 is pulled downwards, the pull ring 31 is driven to move downwards under the limit of the limit rod 30, the first movable plate springs 34 are stretched and prolonged, and the sponge brush 35 can also move downwards along with the movable plate 31, so that the dust on the surface of the display screen 4 is cleaned, after the clearance is accomplished, loosen pull ring 33, movable plate 31 and sponge brush 35 can recover under the effect of the first spring force of a plurality of, conveniently clear up the dust on display screen 4 surface to improve display screen 4's definition.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. The utility model provides a take clean function's LED screen support, includes fixed case (2), the inner chamber of fixed case (2) is close to intermediate position department and is equipped with LED screen mounting panel, LED screen embedded groove has been seted up to the inner chamber of LED screen mounting panel, the inner chamber of LED screen embedded groove is equipped with display screen (4), its characterized in that: the bottom of the LED screen mounting plate is fixedly connected with a bearing plate (6), the left side and the right side of the bearing plate (6) are fixedly connected with first sliding blocks, the left side and the right side of an inner cavity of the fixed box (2) are respectively provided with first sliding grooves matched with the first sliding blocks, the two first sliding blocks are respectively movably connected in the inner cavities of the adjacent first sliding grooves, the bottom of the bearing plate (6) is provided with a lifting mechanism (5), the front side of the fixed box (2) is provided with an opening, the front side of the fixed box (2) is provided with a cleaning mechanism (3), the rear side of the fixed box (2) is provided with an adjusting mechanism (7), the bottom of the fixed box (2) is provided with a bearing plate (1), the left side and the right side of the fixed box (2) are respectively and fixedly connected with rectangular plates, the bottoms of the two rectangular plates are respectively and fixedly connected with the bearing plate (1), and the opposite sides of the two rectangular plates are respectively and fixedly connected with first bearings, the inner cavities of the two first bearings are respectively inserted with a fixed shaft, and one ends of the two fixed shafts, which are opposite to each other, are respectively fixedly connected with the left side and the right side of the fixed box (2).

2. The LED screen support with the cleaning function of claim 1, wherein: elevating system (5) are including bull stick (51), bull stick (51) set up the bottom department at bearing plate (6), the fixed case (2) inner chamber left and right sides is close to the equal fixedly connected with second bearing of bottom department, the inner chamber at adjacent second bearing is pegged graft to the left end of bull stick (51), the right-hand member of bull stick (51) runs through the inner chamber of adjacent second bearing to the hand round of fixedly connected with (53), the outside of bull stick (51) is close to the equal fixedly connected with cam (50) of both ends department about, and two cam (50) all are located the inner chamber of fixed case (2).

3. The LED screen support with the cleaning function of claim 2, wherein: the outer side of the rotating rod (51) is close to the right end and is sleeved with a movable gear (52), the top of the movable gear (52) is meshed with a clamping gear (54), the left side of the clamping gear (54) is fixedly connected with a movable rod, the left end of the movable rod is fixedly connected with a second slider, the right side of the fixed box (2) is close to the bottom and is provided with a second sliding groove matched with the second slider, the second slider is movably connected in an inner cavity of the second sliding groove, the top of the movable rod is fixedly connected with a sliding plate, the right side of the sliding plate is close to the top and is provided with a through hole, the through hole inner cavity is provided with a bolt (56) in a penetrating manner, the outer side of the bolt (56) is sleeved with a second spring (55), the left end and the right end of the second spring (55) are respectively fixedly connected with the sliding plate and the bolt (56), and the left side of the inner cavity of the second sliding groove is provided with two blind holes, and the two blind holes are arranged up and down, and the left end of the plug pin (56) is inserted into the inner cavity of the blind hole at the bottom.

4. The LED screen support with the cleaning function of claim 1, wherein: the cleaning mechanism (3) comprises a connecting plate (32), the connecting plate (32) is fixedly connected to the front side of the top of the fixed box (2), the bottom of the connecting plate (32) is fixedly connected with a plurality of first springs (34) close to the middle position, the bottom of the first springs (34) is fixedly connected with a movable plate (31) together, the front side of the movable plate (31) is fixedly connected with a vertical rod close to the middle position, the bottom of the vertical rod is fixedly connected with a pull ring (33), the rear side of the movable plate (31) is fixedly connected with a connecting rod, the rear end of the connecting rod is fixedly connected with a sponge brush (35), through holes are formed in the movable plate (31) close to the left side and the right side, limiting rods (30) penetrate through inner cavities of the two through holes, and supporting plates are fixedly connected to the lower parts of the two limiting rods (30) opposite to one side, one side opposite to the two supporting plates is fixedly connected with the fixed box (2).

5. The LED screen support with the cleaning function of claim 1, wherein: the adjusting mechanism (7) comprises a side plate (74), the side plate (74) is fixedly connected to the rear side of the top of the bearing plate (1), a rotating handle (71) is arranged on the front side of the side plate (74) near the top, a transmission rod is fixedly connected with the bottom of the rotating handle (71), a position close to the middle position of the front side of the side plate (74) is fixedly connected with a limit plate, a position close to the front side of the top of the limit plate is fixedly connected with a third bearing, the bottom end of the transmission rod penetrates through the inner cavity of the third bearing, and is fixedly connected with a rotating disc (790), the outer edge of the rotating disc (790) is fixedly connected with a plurality of tooth blocks, a rectangular frame (79) is arranged on the outer side of the rotary disk (790), rack plates (78) are fixedly connected at the left side and the right side of an inner cavity of the rectangular frame (79), the rotating disk (790) is meshed with a rectangular frame (79) on the right side through a plurality of tooth blocks.

6. The LED screen support with the cleaning function of claim 5, wherein: the left side and the right side of the rectangular frame (79) are respectively provided with a fixing plate (75), the bottoms of the two fixing plates (75) are respectively fixedly connected with the bearing plate (1), the left side and the right side of the rectangular frame (79) are respectively fixedly connected with a third slider, one side of the two fixing plates (75) opposite to each other is respectively provided with a third sliding chute matched with the third slider, the two third sliders are respectively and movably connected with the inner cavity of the adjacent third sliding chute, the front side of the rectangular frame (79) is fixedly connected with a cross rod (76), the front end of the cross rod (76) is fixedly connected with an L-shaped plate (77), the bottom of the L-shaped plate (77) is fixedly connected with four sliders, the top of the bearing plate (1) is provided with a fourth sliding chute matched with the fourth slider, the fourth slider is movably connected with the inner cavity of the fourth sliding chute, and the top of the L-shaped plate (77) is hinged with an inclined rod (70), one end of the inclined rod (70) far away from the L-shaped plate (77) is hinged with the rear side of the fixed box (2).

7. The LED screen support with the cleaning function of claim 5, wherein: the front side of the side plate (74) is provided with a groove close to the top, the front side of the inner cavity of the groove is fixedly connected with a third spring (73), the front end of the third spring (73) is fixedly connected with a T-shaped rod (72), the outer edge of the rotating handle (71) is provided with a plurality of grooves matched with the T-shaped rod (72), the front end of the T-shaped rod (72) is inserted into the inner cavity of one of the grooves, and the top of the T-shaped rod (72) is close to the middle position and is fixedly connected with a shifting piece.