LED display screen with sealing structure

Abstract

The invention discloses an LED display screen with a sealing structure, and relates to the technical field of display screens, the LED display screen comprises a display screen body, the display screen body is detachably mounted in a protection plate, a butt joint seat is fixedly connected to the middle position of the rear side of the protection plate, and the butt joint seat is rotatably connected to a damping seat; the bottom end of the damping base is fixedly connected to a supporting plate, the bottom end of the supporting plate is fixedly connected with an inserting plate, the bottom end of the inserting plate is movably inserted into a sleeve plate, the bottom end of the sleeve plate is fixedly connected with a bottom plate, mounting holes are formed in the four corners of the bottom plate, and control bases are detachably mounted on the upper side and the lower side of a protection plate. The display screen is reasonable in structure, the heat dissipation holes in the equipment box can be sealed through the sealing assembly when the equipment box is not used, dust is prevented from entering the protection plate through the heat dissipation holes, and the dust on the surface of the display screen body can be cleaned through the wiping assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of display screens, and particularly to an LED display screen with a sealing structure. Background Art

[0002] An LED display screen is a flat panel display composed of small LED module panels, which is a device for displaying various information such as text, images, and videos. The LED electronic display screen integrates microelectronics technology, computer technology, and information processing, and has the advantages of bright colors, wide dynamic range, high brightness, long service life, and stable and reliable operation.

[0003] When the existing LED display screen is in use, heat will be generated. Therefore, heat dissipation holes are provided at the rear side of the LED display screen. However, dust in the air will enter the interior of the LED display screen through the heat dissipation holes, which is likely to damage the internal electronic components of the LED display screen. Moreover, there will be some dust on the surface of the LED display screen, which will affect the viewing experience of users. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides an LED display screen with a sealing structure, including a display screen body, the display screen body is detachably installed inside a protection board, a docking seat is fixedly connected to the middle position at the rear side of the protection board, the docking seat is rotatably connected to a damping seat, the bottom end of the damping seat is fixedly connected to a support plate, the bottom end of the support plate is fixedly connected to an insertion plate, the bottom end of the insertion plate is movably inserted inside a sleeve plate, the bottom end of the sleeve plate is fixedly connected to a bottom plate, mounting holes are provided at the four corners of the bottom plate, and control seats are detachably installed on the upper and lower sides of the protection board, and sliding rods are fixedly connected to the control seats;

[0005] It further includes a sealing component, an adjusting component, and a wiping component. The sealing component is arranged at the rear side of the display screen body to prevent dust from entering the interior of the protection board. The adjusting component is arranged on the sleeve plate for adjusting the overall height of the display screen body. The wiping component is arranged on the sliding rod for cleaning the dust on the surface of the display screen body.

[0006] Preferably, the sealing component includes an equipment box fixedly installed at the rear side of the protection board. Heat dissipation holes are provided at the upper and lower sides of the equipment box. A pair of guide rods are fixedly connected to both ends of the inner wall of the equipment box. A baffle is fixedly connected to one end of the pair of guide rods. A sliding seat is slidably connected to the pair of guide rods. A first spring is sleeved on the pair of guide rods. The two ends of the first spring are respectively fixedly connected to one side of the baffle and one side of the sliding seat.

[0007] Preferably, the sliding seat is fixedly installed on the baffle, the baffle is attached to the inside of the equipment box, several groups of through holes are formed in the baffle, the through holes communicate with the heat dissipation holes, one end of the baffle is fixedly connected with a docking shaft, a linkage plate is rotatably connected to the docking shaft, and the other end of the linkage plate is fixedly connected with a cross bar.

[0008] Preferably, a pulling plate is fixedly connected to the middle position of the cross bar, an arm plate is rotatably connected to the top end of the pulling plate, the other end of the arm plate is rotatably connected to a positioning shaft, one end of the positioning shaft is fixedly connected to a sleeve block, the sleeve block is threadedly connected to a threaded rod, the threaded rod is rotatably connected to a first shaft seat, and the first shaft seat is fixedly installed on the surface of the equipment box.

[0009] Preferably, the adjusting assembly includes a pair of bases fixedly installed on the sleeve plate, a limiting rod is fixedly connected to the pair of bases, an adjusting block is slidably connected to the limiting rod, the middle position of the adjusting block is fixedly connected to the inserting plate, a pair of limiting seats are fixedly connected to the adjusting block, a inserting rod is movably inserted into the pair of limiting seats, and one end of the inserting rod is fixedly connected to a pressing block.

[0010] Preferably, the other end of the inserting rod is fixedly connected to a clamping block, an arc-shaped groove is formed on one side of the clamping block, a rubber pad is fixedly installed on the inner wall of the arc-shaped groove, the rubber pad is attached to the surface of the limiting rod, a second spring is sleeved on the inserting rod, and both ends of the second spring are fixedly connected to one side of the limiting seat and one side of the clamping block respectively.

[0011] Preferably, there are a pair of pressing blocks, a convex shaft is attached between the pressing blocks, the convex shaft is fixedly connected to an adjusting rod, one end of the adjusting rod is fixedly connected to a rotating handle, a second shaft seat is sleeved on the middle position of the adjusting rod, and the bottom end of the second shaft seat is fixedly connected to the adjusting block.

[0012] Preferably, the wiping assembly includes a slider slidably connected to the sliding rod, a shaft pin is fixedly connected to the slider, an adjusting plate is rotatably connected to the shaft pin, one end of the adjusting plate is fixedly connected to a movable plate, and a pair of third shaft seats are fixedly connected to the surface of the movable plate, and a positioning rod is fixedly connected between the pair of third shaft seats.

[0013] Preferably, a pair of driven blocks are slidably connected to the positioning rod, a third spring is sleeved on the positioning rod, both ends of the third spring are fixedly connected to one side of the third shaft seat and one side of the driven block respectively, a hinge plate is rotatably connected to the driven block, and the other end of the hinge plate is rotatably connected to a sponge plate.

[0014] Preferably, a hinge seat is fixedly connected to the middle position of the sponge board. A pair of clamping plates are rotatably connected to the hinge seat. One end of each of the pair of clamping plates is fixedly connected to a pull rod. A plurality of groups of clamping slots are formed in the clamping plates. A clamping post is clamped inside one of the clamping slots. Both ends of the clamping post are fixedly connected to a positioning seat. The positioning seat is fixedly installed at the middle position of the movable plate.

[0015] The beneficial effects of the present invention are embodied in that when it is necessary to close the heat dissipation holes, one end of the threaded rod is rotated. The threaded rod is provided with left and right hand threads, and sleeve blocks are threadedly connected to different threads. The rotation of the threaded rod causes the sleeve blocks to rotate. The rotation of the sleeve blocks pushes the arm plate to move through the positioning shaft. The movement of the arm plate pushes the cross bar to move through the pull plate, so as to facilitate the linkage plates at both ends of the cross bar to push the sliding seats on the baffle to move, causing the through holes on the baffle to be misaligned with the heat dissipation holes, and preventing dust in the air from entering the interior of the equipment box through the heat dissipation holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally denoted by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0017] Figure 1 is a three-dimensional structural schematic diagram of the display screen body;

[0018] Figure 2 is a three-dimensional side structural schematic diagram of the display screen body;

[0019] Figure 3 is a three-dimensional bottom structural schematic diagram of the display screen body;

[0020] Figure 4 is a three-dimensional structural schematic diagram of the interior of the equipment box;

[0021] Figure 5 is a three-dimensional structural schematic diagram of the movable plate;

[0022] Figure 6 is a three-dimensional structural schematic diagram of the bottom plate;

[0023] Figure 7 is Figure 5 an enlarged structural schematic diagram of part A in;

[0024] Figure 8 is Figure 6 an enlarged structural schematic diagram of part B in.

[0025] In the attached drawings, 1 is the main body of the display screen; 101 is the protection board; 102 is the docking seat; 103 is the damping seat; 104 is the support plate; 105 is the insertion board; 106 is the sleeve board; 107 is the bottom board; 108 is the mounting hole; 109 is the control seat; 110 is the slide bar; 2 is the equipment box; 201 is the heat dissipation hole; 202 is the guide bar; 203 is the baffle; 204 is the slide seat; 205 is the first spring; 206 is the baffle plate; 207 is the through hole; 208 is the docking shaft; 209 is the linkage plate; 210 is the cross bar; 211 is the pulling plate; 212 is the arm plate; 213 is the positioning shaft; 214 is the sleeve block; 215 is the threaded rod; 216 is the first shaft seat; 3 is the base; 301 is the limit rod; 302 is the adjusting block; 303 is the limit seat; 304 is the insertion rod; 305 is the pressing block; 306 is the clamping block; 307 is the arc groove; 308 is the rubber pad; 309 is the second spring; 310 is the convex shaft; 311 is the adjusting rod; 312 is the turning handle; 313 is the second shaft seat; 4 is the slider; 401 is the shaft pin; 402 is the adjusting plate; 403 is the movable plate; 404 is the third shaft seat; 405 is the positioning rod; 406 is the driven block; 407 is the third spring; 408 is the hinge plate; 409 is the sponge plate; 410 is the hinge seat; 411 is the clamping plate; 412 is the pull rod; 413 is the clamping groove; 414 is the clamping post; 415 is the positioning seat. Detailed implementation manners

[0026] The embodiments of the technical solutions of the present invention will be described in detail below with reference to the attached drawings. The following embodiments are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples and cannot be used to limit the protection scope of the present invention.

[0027] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which the present invention belongs.

[0028] Such as Figures 1 - 8As shown in the figure, an LED display screen with a sealing structure includes a display screen body 1. The display screen body 1 is detachably installed inside a protection board 101. A docking seat 102 is fixedly connected to the middle position at the rear side of the protection board 101. The docking seat 102 is rotatably connected to a damping seat 103. The bottom end of the damping seat 103 is fixedly connected to a support plate 104. The bottom end of the support plate 104 is fixedly connected with an insertion plate 105. The bottom end of the insertion plate 105 is movably inserted into the inside of a sleeve plate 106. The bottom end of the sleeve plate 106 is fixedly connected to a bottom plate 107. Installation holes 108 are provided at the four corners of the bottom plate 107. Control seats 109 are detachably installed on the upper and lower sides of the protection board 101. A sliding rod 110 is fixedly connected to the control seat 109; It also includes a sealing component, an adjusting component and a wiping component. The sealing component is arranged at the rear side of the display screen body 1 to prevent dust from entering the inside of the protection board 101. The adjusting component is arranged on the sleeve plate 106 for adjusting the overall height of the display screen body 1. The wiping component is arranged on the sliding rod 110 for cleaning the dust on the surface of the display screen body 1.

[0029] Among them, it should be noted here that when the display screen body 1 is in use, it needs to be electrically connected to the power supply through wires. The specific working principle between them is cited through the existing technology and will not be elaborated here too much.

[0030] Furthermore, the sealing component includes an equipment box 2 fixedly installed at the rear side of the protection board 101. Heat dissipation holes 201 are provided on the upper and lower sides of the equipment box 2. A pair of guide rods 202 are fixedly connected to both ends of the inner wall of the equipment box 2. A retaining piece 203 is fixedly connected to one end of the pair of guide rods 202. A sliding seat 204 is slidably connected to the pair of guide rods 202. A first spring 205 is sleeved on the pair of guide rods 202. The two ends of the first spring 205 are respectively fixedly connected to one side of the retaining piece 203 and one side of the sliding seat 204. The sliding seat 204 is fixedly installed on a baffle 206. The baffle 206 fits inside the equipment box 2. A number of groups of through holes 207 are provided on the baffle 206. The through holes 207 communicate with the heat dissipation holes 201. One end of the baffle 206 is fixedly connected to a docking shaft 208. A linkage plate 209 is rotatably connected to the docking shaft 208. The other end of the linkage plate 209 is fixedly connected to a cross bar 210. A pulling plate 211 is fixedly connected to the middle position of the cross bar 210. An arm plate 212 is rotatably connected to the top end of the pulling plate 211. The other end of the arm plate 212 is rotatably connected to a positioning shaft 213. One end of the positioning shaft 213 is fixedly connected to a sleeve block 214. The sleeve block 214 is threadedly connected to a threaded rod 215. The threaded rod 215 is rotatably connected to a first shaft seat 216. The first shaft seat 216 is fixedly installed on the surface of the equipment box 2.

[0031] Among them, when the heat dissipation hole 201 needs to be closed, one end of the threaded rod 215 is rotated. The threaded rod 215 is provided with positive and negative threads, and the sleeve block 214 is threadedly connected to the different threads. The rotation of the threaded rod 215 causes the sleeve block 214 to rotate. The rotation of the sleeve block 214 pushes the arm plate 212 to move through the positioning shaft 213. The movement of the arm plate 212 pushes the cross bar 210 to move through the pull plate 211, so that the linkage plates 209 at both ends of the cross bar 210 push the slide seat 204 on the baffle 206 to move, so that the through hole 207 on the baffle 206 is staggered with the heat dissipation hole 201, thereby preventing dust in the air from entering the interior of the equipment box 2 through the heat dissipation hole 201.

[0032] Furthermore, the adjustment component includes a pair of bases 3 fixedly mounted on the sleeve plate 106, a pair of bases 3 are fixedly connected to a limit rod 301, the limit rod 301 is slidably connected to an adjustment block 302, the middle position of the adjustment block 302 is fixedly connected to the plug plate 105, a pair of limit seats 303 are fixedly connected to the adjustment block 302, a pair of limit seats 303 are movably inserted with an insertion rod 304, one end of the insertion rod 304 is fixedly connected to a pressure block 305, the other end of the insertion rod 304 is fixedly connected to a clamping block 306, one side of the clamping block 306 is provided with an arc groove 307, the inner part of the arc groove 307 A rubber pad 308 is fixedly installed on the wall, and the rubber pad 308 is attached to the surface of the limit rod 301. A second spring 309 is sleeved on the insertion rod 304, and the two ends of the second spring 309 are respectively fixedly connected to one side of the limit seat 303 and one side of the clamping block 306. A pair of pressing blocks 305 are provided, and a convex shaft 310 is attached between the pressing blocks 305. The convex shaft 310 is fixedly connected to the adjusting rod 311, and one end of the adjusting rod 311 is fixedly connected to the turning handle 312. A second shaft seat 313 is sleeved on the middle position of the adjusting rod 311, and the bottom end of the second shaft seat 313 is fixedly connected to the adjusting block 302;

[0033] When the height of the display screen body 1 needs to be adjusted, the turning handle 312 is turned, and the turning handle 312 drives the adjusting rod 311 to rotate, and the turning of the adjusting rod 311 is convenient for the convex shaft 310 to rotate, and the turning of the convex shaft 310 is convenient for the pressing block 305 to retract through the elastic force of the second spring 309, so as to facilitate the movement of the block 306 at the other end of the insertion rod 304, and the movement of the block 306 makes the rubber pad 308 inside the arc groove 307 separate from the surface of the limiting rod 301, so as to facilitate the sliding of the insertion plate 105 inside the sleeve plate 106, and adjust the height of the display screen body 1 as a whole;

[0034] The wiping assembly includes a slider 4 slidably connected to the slide rod 110, the slider 4 is fixedly connected to an axle pin 401, the axle pin 401 is rotatably connected to an adjusting plate 402, one end of the adjusting plate 402 is fixedly connected to a movable plate 403, a pair of third axle seats 404 are fixedly connected to the surface of the movable plate 403, a positioning rod 405 is fixedly connected between the pair of third axle seats 404, a pair of driven blocks 406 are slidably connected to the positioning rod 405, a third spring 407 is sleeved on the positioning rod 405, and two ends of the third spring 407 are respectively connected to one side of the third axle seat 404 and one side of the driven block 406 The movable plate 403 is fixedly connected to the side, and a hinge plate 408 is rotatably connected to the driven block 406, and the other end of the hinge plate 408 is rotatably connected to the sponge plate 409. The middle position of the sponge plate 409 is fixedly connected to a hinge seat 410, and a pair of clamping plates 411 are rotatably connected to the hinge seat 410, and one end of the pair of clamping plates 411 is fixedly connected to a pull rod 412. A plurality of groups of clamping grooves 413 are provided on the clamping plate 411, and a clamping column 414 is clamped inside one of the clamping grooves 413. Both ends of the clamping column 414 are fixedly connected to a positioning seat 415, and the positioning seat 415 is fixedly installed in the middle position of the movable plate 403.

[0035] Among them, when cleaning the dust on the surface of the display screen body 1, the pull rod 412 is pushed to make the sponge board 409 fit the surface of the display screen body 1, and the sponge board 409 wipes the dust on the surface of the display screen body 1 by pulling the pull rod 412. Then, when moving the sponge board 409 away, the pull rod 412 is pulled to rotate the card plate 411. The rotation of the card plate 411 facilitates the card column 414 to disengage from the inside of the card slot 413, and then the sponge board 409 as a whole will be separated from the surface of the display screen body 1 through the elastic force of the third spring 407. Then the sponge board 409 is moved as a whole to one side of the display screen body 1 to rotate the movable plate 403, so as to facilitate moving the movable plate 403 out of the surface of the display screen body 1 to avoid blocking the overall viewing angle of the display screen body 1.

[0036] The working principle of the present invention is as follows: when the heat dissipation hole 201 needs to be closed, one end of the threaded rod 215 is rotated, positive and negative threads are arranged on the threaded rod 215, and a sleeve block 214 is threadedly connected to different threads, the rotation of the threaded rod 215 causes the sleeve block 214 to rotate, and the rotation of the sleeve block 214 pushes the arm plate 212 to move through the positioning shaft 213, and the movement of the arm plate 212 pushes the cross bar 210 to move through the pull plate 211, so that the linkage plates 209 at both ends of the cross bar 210 push the slide seat 204 on the baffle 206 to move, so that the through hole 207 on the baffle 206 is staggered with the heat dissipation hole 201, thereby preventing dust in the air from entering the interior of the equipment box 2 through the heat dissipation hole 201.

[0037] When the height of the display screen body 1 needs to be adjusted, the handle 312 is rotated, and the rotation of the handle 312 drives the adjustment rod 311 to rotate. The rotation of the adjustment rod 311 facilitates the rotation of the convex shaft 310. The rotation of the convex shaft 310 facilitates the retraction of the pressure block 305 through the elastic force of the second spring 309, thereby facilitating the movement of the block 306 at the other end of the insertion rod 304. The movement of the block 306 causes the rubber pad 308 inside the arc groove 307 to separate from the surface of the limit rod 301, thereby facilitating the sliding of the insertion plate 105 inside the sleeve plate 106 to adjust the overall height of the display screen body 1.

[0038] When cleaning the dust on the surface of the display screen body 1, push the pull rod 412 to make the sponge board 409 fit the surface of the display screen body 1, and pull the pull rod 412 to make the sponge board 409 wipe the dust on the surface of the display screen body 1. Then, when moving the sponge board 409 away, pull the pull rod 412 to rotate the card plate 411. The rotation of the card plate 411 makes it easier for the card column 414 to disengage from the inside of the card slot 413, and then the sponge board 409 as a whole will be separated from the surface of the display screen body 1 through the elastic force of the third spring 407. Then, the sponge board 409 is moved as a whole to one side of the display screen body 1 to rotate the movable plate 403, so as to facilitate moving the movable plate 403 out of the surface of the display screen body 1 to avoid blocking the viewing angle of the entire display screen body 1.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. An LED display screen with a sealing structure, comprising a display screen body (1), characterized in that, The display body (1) is detachably installed inside the protection board (101). A docking seat (102) is fixedly connected to the middle position at the rear side of the protection board (101). The docking seat (102) is rotatably connected to a damping seat (103). The bottom end of the damping seat (103) is fixedly connected to a support plate (104). The bottom end of the support plate (104) is fixedly connected with an insertion plate (105). The bottom end of the insertion plate (105) is movably inserted into the inside of a sleeve plate (106). The bottom end of the sleeve plate (106) is fixedly connected to a bottom plate (107). Mounting holes (108) are formed at the four corners of the bottom plate (107). Control seats (109) are detachably installed on the upper and lower sides of the protection board (101). A sliding rod (110) is fixedly connected to the control seat (109). It further includes a sealing component, an adjusting component and a wiping component. The sealing component is arranged at the rear side of the display body (1) to prevent dust from entering the inside of the protection board (101). The adjusting component is arranged on the sleeve plate (106) for adjusting the overall height of the display body (1). The wiping component is arranged on the sliding rod (110) for cleaning the dust on the surface of the display body (1).

2. The LED display screen with a sealing structure according to claim 1, wherein: The sealing component includes an equipment box (2) fixedly installed at the rear side of the protection board (101). Heat dissipation holes (201) are formed at the upper and lower sides of the equipment box (2). A pair of guide rods (202) are fixedly connected to both ends of the inner wall of the equipment box (2). A baffle (203) is fixedly connected to one end of a pair of the guide rods (202). A sliding seat (204) is slidably connected to a pair of the guide rods (202). A first spring (205) is sleeved on a pair of the guide rods (202). Both ends of the first spring (205) are respectively fixedly connected to one side of the baffle (203) and one side of the sliding seat (204).

3. The LED display screen with a sealing structure according to claim 2, wherein: The sliding seat (204) is fixedly installed on a baffle plate (206). The baffle plate (206) fits inside the equipment box (2). A plurality of groups of through holes (207) are formed in the baffle plate (206). The through holes (207) are communicated with the heat dissipation holes (201). A docking shaft (208) is fixedly connected to one end of the baffle plate (206). A linkage plate (209) is rotatably connected to the docking shaft (208). A cross bar (210) is fixedly connected to the other end of the linkage plate (209).

4. The LED display screen with a sealing structure according to claim 3, wherein: A pulling plate (211) is fixedly connected to the middle position of the cross bar (210). An arm plate (212) is rotatably connected to the top end of the pulling plate (211). The other end of the arm plate (212) is rotatably connected to a positioning shaft (213). One end of the positioning shaft (213) is fixedly connected to a sleeve block (214). The sleeve block (214) is threadedly connected to a threaded rod (215). The threaded rod (215) is rotatably connected to a first shaft seat (216). The first shaft seat (216) is fixedly installed on the surface of the equipment box (2).

5. A LED display screen with a sealing structure according to claim 1, characterized in that: The adjusting assembly includes a pair of bases (3) fixedly installed on the sleeve plate (106). A limiting rod (301) is fixedly connected to the pair of bases (3). An adjusting block (302) is slidably connected to the limiting rod (301). The middle position of the adjusting block (302) is fixedly connected to the insertion plate (105). A pair of limiting seats (303) are fixedly connected to the adjusting block (302). A plug rod (304) is movably inserted into the pair of limiting seats (303). One end of the plug rod (304) is fixedly connected to a pressing block (305).

6. The LED display screen with a sealing structure according to claim 5, characterized in that: The other end of the plug rod (304) is fixedly connected to a clamping block (306). An arc-shaped groove (307) is formed on one side of the clamping block (306). A rubber pad (308) is fixedly installed on the inner wall of the arc-shaped groove (307). The rubber pad (308) is attached to the surface of the limiting rod (301). A second spring (309) is sleeved on the plug rod (304). The two ends of the second spring (309) are respectively fixedly connected to one side of the limiting seat (303) and one side of the clamping block (306).

7. The LED display screen with a sealing structure according to claim 6, characterized in that: There are a pair of the pressing blocks (305). A convex shaft (310) is attached between the pressing blocks (305). The convex shaft (310) is fixedly connected to an adjusting rod (311). One end of the adjusting rod (311) is fixedly connected to a turning handle (312). A second shaft seat (313) is sleeved at the middle position of the adjusting rod (311). The bottom end of the second shaft seat (313) is fixedly connected to the adjusting block (302).

8. A LED display screen with a sealing structure according to claim 1, characterized in that: The wiping assembly includes a slider (4) slidably connected to the sliding rod (110). A pin (401) is fixedly connected to the slider (4). An adjusting plate (402) is rotatably connected to the pin (401). One end of the adjusting plate (402) is fixedly connected to a movable plate (403). A pair of third shaft seats (404) are fixedly connected to the surface of the movable plate (403). A positioning rod (405) is fixedly connected between the pair of third shaft seats (404).

9. The LED display screen with a sealing structure according to claim 8, characterized in that: A pair of driven blocks (406) are slidably connected to the positioning rod (405). A third spring (407) is sleeved on the positioning rod (405). The two ends of the third spring (407) are respectively fixedly connected to one side of the third shaft seat (404) and one side of the driven block (406). A hinge plate (408) is rotatably connected to the driven block (406). The other end of the hinge plate (408) is rotatably connected to a sponge plate (409).

10. A LED display screen with a sealing structure according to claim 9, characterized in that: A hinge seat (410) is fixedly connected to the middle position of the sponge plate (409). A pair of clamping plates (411) are rotatably connected to the hinge seat (410). One end of each of the pair of clamping plates (411) is fixedly connected to a pull rod (412). A number of groups of clamping slots (413) are formed in the clamping plates (411). A clamping post (414) is clamped inside one of the clamping slots (413). Both ends of the clamping post (414) are fixedly connected to a positioning seat (415). The positioning seat (415) is fixedly installed at the middle position of the movable plate (403).

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