LED display screen with heat dissipation cover

Abstract

The LED display screen comprises the heat dissipation cover and an LED display screen body, a display groove is formed in the outer wall of the heat dissipation cover, a tempered film is fixedly connected to the inner wall of the display groove, multiple sets of heat dissipation holes are formed in the two side walls of the heat dissipation cover, a mounting frame is arranged in the heat dissipation cover, and the LED display screen body is mounted in the mounting frame; the filter plate is arranged to prevent dust from entering the heat dissipation fan, the service life of the heat dissipation fan is prolonged, practicability is higher, a motor is started to drive a screw to rotate, the screw drives a sliding seat to reciprocate, so that a supporting shell is driven to move, the supporting shell drives a cleaning roller to move, the cleaning roller quickly cleans the outer wall of the filter plate, and the service life of the heat dissipation fan is prolonged. By arranging a limiting hole to be matched with a limiting rod for use, the sliding seat does linear reciprocating motion, the stability is higher, by arranging a limiting assembly, the cleaning roller can be quickly disassembled and assembled conveniently, the practicability is higher, and the flexibility is higher.

Description

Technical Field

[0001] The invention relates to the technical field of LED display screens, in particular to an LED display screen with a heat dissipation cover. Background Art

[0002] LED display is a display screen that displays various information such as text, images, graphics, animation, market conditions, videos, and video signals by controlling semiconductor light-emitting diodes. With the continuous improvement of science and technology, people's living standards are also improving. Home appliances are no longer luxury goods, and display screens are one of them. The size of display screens is getting bigger and bigger, and the technology is getting more and more advanced. Therefore, with the emergence of LED display screens, large LED display screens are set up outside many squares and shopping malls.

[0003] In this regard, the patent with the authorization announcement number CN210896385U discloses an efficient heat dissipation mask for LED display screens, which belongs to the technical field of LED display screens. The efficient heat dissipation mask for LED display screens includes a mask body, the mask is provided with a plurality of avoidance openings for embedding LED lamp beads, a heat dissipation channel is provided inside the solid body of the mask body, and the side of the mask body is provided with an inlet and an outlet connected to the heat dissipation channel, and liquid is transported to the heat dissipation channel in the mask body. During the use of the LED light board, the heat generated by the LED lamp beads on the lamp surface of the LED light board is conducted to the mask body, and the liquid in the heat dissipation channel in the mask body takes away the heat of the mask body, thereby realizing rapid heat dissipation of the lamp surface of the LED light board, and can quickly and effectively reduce the temperature of the lamp surface of the LED light board;

[0004] Existing LED display screens will generate a lot of heat after long-term operation. This heat accumulates in the display module, causing local heat accumulation, which reduces the overall quality of the display screen, and reduces its service life and display effect. Existing devices mostly dissipate heat by setting up heat dissipation slots. LED display screens are set outdoors, which are prone to dust accumulation, causing the heat dissipation slots to be blocked, resulting in poor heat dissipation. On the other hand, outdoor LED display screens often accumulate dust on the outer surface. If the dust on the outer surface cannot be cleaned in time, the display brightness of the LED display screen is easily reduced. For this reason, we propose an LED display screen with a heat dissipation cover to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide an LED display screen with a heat dissipation cover to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: an LED display screen with a heat dissipation cover, comprising a heat dissipation cover and an LED display screen, wherein a display slot is provided on the outer wall of the heat dissipation cover, a tempered film is fixedly connected to the inner wall of the display slot, multiple groups of heat dissipation holes are provided on both side walls of the heat dissipation cover, a mounting frame is provided inside the heat dissipation cover, and an LED display screen is installed inside the mounting frame;

[0007] A support frame is fixedly connected to the top side of the LED display screen, a cleaning component is arranged in the support frame, and an electric push rod is contained in the cleaning component. The top wall of the electric push rod is fixedly mounted on the inner top surface of the support frame, a telescopic rod is mounted on the bottom output end of the electric push rod, the bottom end of the telescopic rod is fixedly connected to the outer wall of the lifting shell, a slide rail is symmetrically fixedly connected to the inner wall of the lifting shell, two ends of the slide plate are movably connected in the slide rail, a cleaning block is fixedly connected to one side wall of the slide plate, the side wall of the cleaning block movably abuts against the outer wall of the tempered film, and a plurality of groups of supporting springs are fixedly connected to the other side wall of the slide plate, and the side ends of the supporting springs are fixedly connected to the inner wall of the lifting shell;

[0008] The inner wall of the heat dissipation hood is symmetrically fixedly connected with a fixing frame, and multiple groups of heat dissipation fans are fixedly installed on the fixing frame. Filter plates are arranged on the parallel sides of the heat dissipation fans, and the outer wall of the filter plate is fixedly connected to the inner wall of the heat dissipation hood. A motor is symmetrically fixedly installed on the inner top surface of the heat dissipation hood, a screw is arranged at the bottom output end of the motor, a sliding seat is movably connected to the screw, and a supporting shell is fixedly connected to the side wall of the sliding seat, a cleaning roller is movably placed in the supporting shell, a rotating rod is movably inserted in the middle of the cleaning roller, and the outer wall of the cleaning roller is movably abutted against the filter plate, a slot is provided on one side wall inside the supporting shell, and one side end of the rotating rod is movably inserted in the slot, and a limiting component is arranged on the other side wall inside the supporting shell.

[0009] Preferably, a circular hole is opened on one side wall of the rotating rod, the limit assembly contains a movable groove, the inner wall of the supporting shell is opened on the movable groove, and the limit grooves are symmetrically opened inside the movable groove. The two ends of the limit plate are movably clamped in the limit groove, and a clamping rod is fixedly connected to one side wall of the limit plate. The side end of the clamping rod movably passes through the movable groove and extends outward, and the side end of the clamping rod is movably inserted into the circular hole.

[0010] Preferably, a pull rod is fixedly connected to the other side wall of the limit plate, and the side end of the pull rod movably passes through the support shell and extends outward, and the side end of the pull rod is fixedly connected to a pull handle, and a limit spring is movably sleeved on the pull rod, one end of the limit spring is fixedly connected to the limit plate, and the other end of the limit spring is fixedly connected to the inner wall of the movable groove.

[0011] Preferably, a limiting hole is provided on the slide seat, a limiting rod is movably inserted in the middle of the limiting hole, and both ends of the limiting rod are fixedly connected to the inner wall of the heat dissipation cover.

[0012] Preferably, the bottom wall of the heat dissipation cover is symmetrically provided with feed troughs, and the feed troughs are arranged directly below the cleaning roller, and the bottom wall of the heat dissipation cover is fixedly connected with a mounting plate.

[0013] Preferably, a sealed door is installed on the inner wall of the heat dissipation cover, a handle is fixedly connected to the outer wall of the sealed door, and a control panel is fixedly installed on the outer wall of the sealed door.

[0014] Preferably, a rectangular groove is formed on the top wall of the support frame, sliding grooves are symmetrically formed on the inner side walls of the support frame, and sliding blocks are symmetrically fixedly connected to the two side walls of the lifting shell, and both ends of the sliding blocks are movably clamped in the sliding grooves.

[0015] Preferably, the top wall of the lifting shell is fixedly connected to a water tank, the top wall of the water tank is provided with a water inlet, and a sealing plug is movably inserted in the water inlet.

[0016] Preferably, a water pump is installed on the top wall of the water tank, a water suction pipe is fixedly installed on the bottom wall of the water pump, and the bottom end of the water suction pipe extends to the bottom surface of the water tank.

[0017] Preferably, a water pipe is fixedly installed on the side wall of the water pump, the side end of the water pipe extends to the outer wall of the water tank, the side end of the water pipe is fixedly connected to the nozzle, and the side wall of the nozzle is fixedly installed on the outer wall of the water tank.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention is provided with a display slot for use with a tempered film, so that the LED display screen can be placed in the heat dissipation cover without affecting the viewing and use, and is more practical and more protective; while the heat dissipation holes are provided to facilitate the evacuation of heat in the heat dissipation cover, the discharge chute is provided to facilitate the dust generated when the device cleans the filter plate to fall to the outside of the heat dissipation cover, and will not accumulate in the heat dissipation cover to affect the use of the device, and is more practical; the sealing door is provided for use with a handle to facilitate the rapid opening and closing of the heat dissipation cover, and to facilitate regular maintenance of the internal device, which is more convenient and more user-friendly; by starting the electric push rod, the electric push rod pushes the telescopic rod downward, the telescopic rod pushes the lifting shell downward, and the lifting shell drives the cleaning block to move, so that the outer wall of the cleaning block abuts against the tempered film, the tempered film is cleaned quickly and conveniently, and the tempered film is kept clean, so that the display effect of the LED display screen is better; the support spring is provided to push the slide plate to move, and the slide plate pushes the cleaning block to always abut against The cleaning effect is better on the outer wall of the tempered film; by setting a slide groove for use with a slider, the lifting shell has higher stability in lifting and lowering movement, and by starting the water pump, the cleaning liquid in the water tank is transported to the nozzle, and the nozzle can spray the cleaning liquid onto the tempered film, so that the cleaning effect is better and more tidy; by starting the cooling fan, it is convenient to quickly evacuate the heat generated inside the cooling cover, and by setting a filter plate, dust is prevented from entering the cooling fan, thereby extending the service life of the cooling fan and being more practical; by starting the motor to drive the screw to rotate, the screw drives the slide to reciprocate, thereby driving the support shell to move, and the support shell drives the cleaning roller to move, and the cleaning roller quickly cleans the outer wall of the filter plate to avoid clogging inside the filter plate and affecting the heat dissipation efficiency, which is more practical; by setting a limiting hole for use with a limiting rod, the slide can reciprocate in a straight line with higher stability, and by setting a limiting component, it is convenient to quickly disassemble and assemble the cleaning roller, which is more practical and more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall structure of the back of the heat dissipation cover in the present invention;

[0022] Figure 3 This is a schematic diagram of the front view of the internal structure of the heat dissipation cover in the present invention;

[0023] Figure 4 It is a schematic diagram of the top view of the internal structure of the support frame in the present invention;

[0024] Figure 5 This is a schematic diagram of the internal structure of the support frame in the present invention;

[0025] Figure 6 It is a schematic diagram of the internal side structure of the lifting shell in the present invention.

[0026] In the figure: 1. heat dissipation cover; 101. display slot; 102. tempered film; 103. heat dissipation hole; 104. feed chute; 105. mounting plate; 106. sealing door; 107. handle; 108. control panel; 2. mounting frame; 3. LED display screen; 4. support frame; 401. rectangular slot; 402. slide slot; 5. cleaning component; 51. electric push rod; 52. telescopic rod; 53. lifting shell; 54. slide rail; 55. slide plate; 56. cleaning block; 57. support spring; 58. slide block; 6. water tank; 601. water inlet ;602, sealing plug; 7, water pump; 701, water suction pipe; 702, water delivery pipe; 8, nozzle; 9, fixing frame; 10, cooling fan; 11, filter plate; 12, motor; 13, screw; 14, slide seat; 15, limiting hole; 16, limiting rod; 17, supporting shell; 1701, card slot; 18, cleaning roller; 19, rotating rod; 191, round hole; 20, limiting assembly; 200, movable slot; 201, limiting slot; 202, limiting plate; 203, card rod; 204, pull rod; 205, limiting spring; 206, pull handle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1:

[0029] See also Figure 1-Figure 3 The present invention provides a technical solution: an LED display screen with a heat dissipation cover, comprising a heat dissipation cover 1 and an LED display screen 3, wherein a display slot 101 is provided on the outer wall of the heat dissipation cover 1, a tempered film 102 is fixedly connected to the inner wall of the display slot 101, and multiple groups of heat dissipation holes 103 are provided on both side walls of the heat dissipation cover 1, a mounting frame 2 is provided inside the heat dissipation cover 1, and an LED display screen 3 is installed inside the mounting frame 2, and the display slot 101 is provided in conjunction with the tempered film 102, so that the LED display screen 3 is placed in the heat dissipation cover 1 without affecting viewing and use, and has stronger practicality and higher protection;

[0030] It should be noted that the top side of the LED display screen 3 is fixedly connected to a support frame 4, a cleaning assembly 5 is arranged in the support frame 4, and the cleaning assembly 5 contains an electric push rod 51, the top wall of the electric push rod 51 is fixedly installed on the inner top surface of the support frame 4, a telescopic rod 52 is installed at the bottom output end of the electric push rod 51, the bottom end of the telescopic rod 52 is fixedly connected to the outer wall of the lifting shell 53, the inner wall of the lifting shell 53 is symmetrically fixedly connected to a slide rail 54, the two ends of a slide plate 55 are movably connected in the slide rail 54, a cleaning block 56 is fixedly connected to one side wall of the slide plate 55, the side wall of the cleaning block 56 is movably abutted against the outer wall of the tempered film 102, and the other side wall of the slide plate 55 is fixedly connected to multiple groups The support spring 57, the side end of the support spring 57 is fixedly connected to the inner wall of the lifting shell 53, by starting the electric push rod 51, the electric push rod 51 pushes the telescopic rod 52 downward, the telescopic rod 52 pushes the lifting shell 53 downward, the lifting shell 53 drives the cleaning block 56 to move, so that the outer wall of the cleaning block 56 abuts against the tempered film 102, the tempered film 102 is cleaned quickly and conveniently, the tempered film 102 is kept clean, and the display effect of the LED display screen 3 is better. The support spring 57 is provided to push the slide plate 55 to move, and the slide plate 55 pushes the cleaning block 56 to always abut against the outer wall of the tempered film 102, so that the cleaning effect is better;

[0031] It should be noted that a fixing frame 9 is symmetrically fixedly connected to the inner side wall of the heat dissipation cover 1, a plurality of heat dissipation fans 10 are fixedly installed on the fixing frame 9, a filter plate 11 is arranged on the parallel side of the heat dissipation fan 10, the outer wall of the filter plate 11 is fixedly connected to the inner wall of the heat dissipation cover 1, a motor 12 is symmetrically fixedly installed on the inner top surface of the heat dissipation cover 1, a screw 13 is installed at the bottom output end of the motor 12, a slide seat 14 is movably connected to the screw 13, a support shell 17 is fixedly connected to the side wall of the slide seat 14, a cleaning roller 18 is movably placed in the support shell 17, a rotating rod 19 is movably inserted in the middle of the cleaning roller 18, the outer wall of the cleaning roller 18 is movably abutted against the filter plate 11, and a slot 1701 is provided on one side wall inside the support shell 17 One side end of the rotating rod 19 is movably inserted in the card slot 1701, and a limiting component 20 is arranged on the other side wall inside the supporting shell 17. By starting the cooling fan 10, it is convenient to quickly evacuate the heat generated inside the cooling cover 1. By providing the filter plate 11, dust is prevented from entering the cooling fan 10, and the service life of the cooling fan 10 is extended, which is more practical. By starting the motor 12, the screw 13 is driven to rotate, and the screw 13 drives the slide seat 14 to reciprocate, thereby driving the supporting shell 17 to move, and the supporting shell 17 drives the cleaning roller 18 to move. The cleaning roller 18 quickly cleans the outer wall of the filter plate 11 to avoid clogging inside the filter plate 11 and affecting the heat dissipation efficiency, which is more practical.

[0032] Embodiment 2:

[0033] See also Figure 4-Figure 6 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment;

[0034] Specifically, a rectangular groove 401 is provided on the top wall of the support frame 4, and a slide groove 402 is symmetrically provided on the inner wall of the support frame 4. The two side walls of the lifting shell 53 are symmetrically fixedly connected with sliders 58, and both ends of the sliders 58 are movably clamped in the slide grooves 402. By providing the slide grooves 402 for use with the sliders 58, the lifting and lowering movement stability of the lifting shell 53 is improved.

[0035] It should be noted that the top wall of the lifting shell 53 is fixedly connected to the water tank 6 , the top wall of the water tank 6 is provided with a water inlet 601 , and a sealing plug 602 is movably inserted into the water inlet 601 .

[0036] It should be noted that a water pump 7 is installed on the top wall of the water storage tank 6 , and a water suction pipe 701 is fixedly installed on the bottom wall of the water pump 7 , and the bottom end of the water suction pipe 701 extends to the bottom surface of the water storage tank 6 .

[0037] In addition, a water pipe 702 is fixedly installed on the side wall of the water pump 7, and the side end of the water pipe 702 extends to the outer wall of the water tank 6. The side end of the water pipe 702 is fixedly connected to the nozzle 8, and the side wall of the nozzle 8 is fixedly installed on the outer wall of the water tank 6. By starting the water pump 7, the cleaning liquid in the water tank 6 is transported to the nozzle 8, and the nozzle 8 can spray the cleaning liquid toward the tempered film 102, so that the cleaning effect is better and more tidy.

[0038] Specifically, a limit hole 15 is provided on the slide 14, a limit rod 16 is movably inserted in the middle of the limit hole 15, and both ends of the limit rod 16 are fixedly connected to the inner wall of the heat dissipation cover 1. By setting the limit hole 15 and using the limit rod 16, the slide 14 can reciprocate in a straight line with greater stability.

[0039] It should be noted that a circular hole 191 is provided on one side wall of the rotating rod 19, the limiting assembly 20 contains a movable groove 200, the inner wall of the supporting shell 17 is provided with a movable groove 200, and the movable groove 201 is symmetrically provided inside the movable groove 200. The limiting groove 201 is movably connected to the two ends of the limiting plate 202, and a clamping rod 203 is fixedly connected to one side wall of the limiting plate 202. The side end of the clamping rod 203 movably passes through the movable groove 200 and extends outward, and the side end of the clamping rod 203 is movably inserted into the circular hole 191.

[0040] It should be noted that a pull rod 204 is fixedly connected to the other side wall of the limit plate 202, and the side end of the pull rod 204 movably passes through the support shell 17 to extend outward, and a pull handle 206 is fixedly connected to the side end of the pull rod 204. A limit spring 205 is movably sleeved on the pull rod 204, and one end of the limit spring 205 is fixedly connected to the limit plate 202, and the other end of the limit spring 205 is fixedly connected to the inner wall of the movable groove 200.

[0041] In addition, the bottom wall of the heat dissipation cover 1 is symmetrically provided with a discharge chute 104, and the discharge chute 104 is arranged directly below the cleaning roller 18. The bottom wall of the heat dissipation cover 1 is fixedly connected with a mounting plate 105. The discharge chute 104 facilitates the dust generated when the device cleans the filter plate 11 to fall to the outside of the heat dissipation cover 1, and will not accumulate in the heat dissipation cover 1 to affect the use of the device, and is more practical.

[0042] Specifically, a sealed door 106 is installed on the inner wall of the heat dissipation cover 1, a handle 107 is fixedly connected to the outer wall of the sealed door 106, and a control panel 108 is fixedly installed on the outer wall of the sealed door 106. By providing the sealed door 106 and using the handle 107, the heat dissipation cover 1 can be opened and closed quickly, and the internal device can be regularly inspected, which is more convenient and more user-friendly.

[0043] See also Figures 1 to 6 ;

[0044] When the present invention is in use, the display slot 101 is provided in conjunction with the tempered film 102, so that the LED display screen 3 is placed in the heat dissipation cover 1 without affecting the viewing and use, and the practicability is stronger and the protection is higher. The heat dissipation holes 103 are provided to facilitate the evacuation of heat in the heat dissipation cover 1. The material discharge chute 104 is provided to facilitate the dust generated when the device cleans the filter plate 11 to fall to the outside of the heat dissipation cover 1, and will not accumulate in the heat dissipation cover 1 to affect the use of the device, and the practicability is stronger. The sealing door 106 is provided in conjunction with the handle 107 to facilitate the cleaning of the heat dissipation cover 1. The quick opening and closing is convenient for regular maintenance of the internal device, which is more convenient and more user-friendly. By starting the electric push rod 51, the electric push rod 51 pushes the telescopic rod 52 downward, and the telescopic rod 52 pushes the lifting shell 53 downward. The lifting shell 53 drives the cleaning block 56 to move, so that the outer wall of the cleaning block 56 abuts against the tempered film 102, and the tempered film 102 is cleaned quickly and conveniently to keep the tempered film 102 clean, so that the display effect of the LED display screen 3 is better. The support spring 57 is provided to push the slide plate 55 to move, and the slide plate 55 pushes the cleaning block 56 to start Finally, it abuts against the outer wall of the tempered film 102, and the cleaning effect is better. By providing the slide groove 402 to cooperate with the slider 58, the lifting movement stability of the lifting shell 53 is higher. By starting the water pump 7, the cleaning liquid in the water tank 6 is transported to the nozzle 8, and the nozzle 8 can spray the cleaning liquid to the tempered film 102, so that the cleaning effect is better and neater. By starting the cooling fan 10, it is convenient to quickly evacuate the heat generated inside the cooling cover 1. By providing the filter plate 11, dust is prevented from entering the cooling fan 10, which prolongs the service life of the cooling fan 10 and is more practical. By starting the motor 12, the screw 13 is driven to rotate, and the screw 13 drives the slide 14 to reciprocate, thereby driving the support shell 17 to move, and the support shell 17 drives the cleaning roller 18 to move. The cleaning roller 18 quickly cleans the outer wall of the filter plate 11 to avoid clogging inside the filter plate 11 and affecting the heat dissipation efficiency, which is more practical. By setting a limiting hole 15 in conjunction with the limiting rod 16, the slide 14 can reciprocate in a straight line with greater stability. By setting a limiting component 20, it is convenient to quickly disassemble and assemble the cleaning roller 18, which is more practical and more flexible.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An LED display screen with a heat dissipation cover, comprising a heat dissipation cover (1) and an LED display screen (3), characterized in that: The outer wall of the heat dissipation cover (1) is provided with a display slot (101), the inner wall of the display slot (101) is fixedly connected with a tempered film (102), both side walls of the heat dissipation cover (1) are provided with a plurality of groups of heat dissipation holes (103), a mounting frame (2) is arranged inside the heat dissipation cover (1), and the LED display screen (3) is installed inside the mounting frame (2); The top side of the LED display screen (3) is fixedly connected to a support frame (4), a cleaning assembly (5) is arranged inside the support frame (4), and the cleaning assembly (5) contains an electric push rod (51), the top wall of the electric push rod (51) is fixedly mounted on the inner top surface of the support frame (4), a telescopic rod (52) is mounted on the bottom output end of the electric push rod (51), the bottom end of the telescopic rod (52) is fixedly connected to a lifting shell (53), the inner wall of the lifting shell (53) is symmetrically fixedly connected to a slide rail (54), a slide plate (55) is movably connected inside the slide rail (54), a cleaning block (56) is fixedly connected to one side wall of the slide plate (55), the side wall of the cleaning block (56) is movably abutted against the outer wall of the tempered film (102), and the other side wall of the slide plate (55) is fixedly connected to a plurality of groups of supporting springs (57), and the side ends of the supporting springs (57) are fixedly connected to the inner wall of the lifting shell (53); The inner side wall of the heat dissipation cover (1) is symmetrically fixedly connected with a fixing frame (9), and a plurality of heat dissipation fans (10) are fixedly mounted on the fixing frame (9). A filter plate (11) is arranged on the parallel side of the heat dissipation fan (10), and the outer wall of the filter plate (11) is fixedly connected to the inner wall of the heat dissipation cover (1). A motor (12) is symmetrically fixedly mounted on the inner top surface of the heat dissipation cover (1), and a screw rod (13) is mounted on the bottom output end of the motor (12), and a slide seat (14) is movably connected to the screw rod (13). The slide seat (14) is movably connected to the screw rod (13). The side wall of the seat (14) is fixedly connected to a support shell (17), a cleaning roller (18) is movably placed in the support shell (17), a rotating rod (19) is movably inserted in the middle of the cleaning roller (18), the outer wall of the cleaning roller (18) is movably abutted against the filter plate (11), a slot (1701) is provided on one side wall inside the support shell (17), one side end of the rotating rod (19) is movably inserted in the slot (1701), and a limiting component (20) is provided on the other side wall inside the support shell (17).

2. The LED display screen with a heat dissipation cover according to claim 1, characterized in that: The top wall of the support frame (4) is provided with a rectangular groove (401), the inner side wall of the support frame (4) is symmetrically provided with a slide groove (402), and the two side walls of the lifting shell (53) are symmetrically fixedly connected with a slider (58), and both ends of the slider (58) are movably clamped in the slide groove (402).

3. The LED display screen with a heat dissipation cover according to claim 1, characterized in that: The top wall of the lifting shell (53) is fixedly connected to a water storage tank (6), the top wall of the water storage tank (6) is provided with a water inlet (601), and a sealing plug (602) is movably inserted into the water inlet (601).

4. The LED display screen with a heat dissipation cover according to claim 3, characterized in that: A water pump (7) is installed on the top wall of the water storage tank (6), and a water suction pipe (701) is fixedly installed on the bottom wall of the water pump (7), wherein the bottom end of the water suction pipe (701) extends to the bottom surface of the water storage tank (6).

5. The LED display screen with a heat dissipation cover according to claim 4, characterized in that: A water delivery pipe (702) is fixedly mounted on the side wall of the water pump (7), the side end of the water delivery pipe (702) extends to the outer wall of the water storage tank (6), the side end of the water delivery pipe (702) is fixedly connected to a nozzle (8), and the side wall of the nozzle (8) is fixedly mounted on the outer wall of the water storage tank (6).

6. The LED display screen with a heat dissipation cover according to claim 1, characterized in that: The slide seat (14) is provided with a limit hole (15), a limit rod (16) is movably inserted in the middle of the limit hole (15), and both ends of the limit rod (16) are fixedly connected to the inner wall of the heat dissipation cover (1).

7. The LED display screen with a heat dissipation cover according to claim 1, characterized in that: A circular hole (191) is provided on one side wall of the rotating rod (19); a movable groove (200) is contained in the limiting assembly (20); a movable groove (200) is provided on the inner side wall of the supporting shell (17); limiting grooves (201) are symmetrically provided inside the movable groove (200); a limiting plate (202) is movably engaged in the limiting groove (201); a clamping rod (203) is fixedly connected to one side wall of the limiting plate (202); a side end of the clamping rod (203) movably passes through the movable groove (200) and extends outwardly; and a side end of the clamping rod (203) is movably inserted into the circular hole (191).

8. The LED display screen with a heat dissipation cover according to claim 7, characterized in that: A pull rod (204) is fixedly connected to the other side wall of the limit plate (202), and the side end of the pull rod (204) is movably connected to pass through the support shell (17) and extend outward. A pull handle (206) is fixedly connected to the side end of the pull rod (204), and a limit spring (205) is movably sleeved on the pull rod (204). One end of the limit spring (205) is fixedly connected to the limit plate (202), and the other end of the limit spring (205) is fixedly connected to the inner wall of the movable groove (200).

9. The LED display screen with a heat dissipation cover according to claim 1, characterized in that: The bottom wall of the heat dissipation cover (1) is symmetrically provided with material discharge grooves (104), and the material discharge grooves (104) are arranged directly below the cleaning roller (18). The bottom wall of the heat dissipation cover (1) is fixedly connected with a mounting plate (105).

10. The LED display screen with a heat dissipation cover according to claim 9, characterized in that: A sealed door (106) is installed on the inner wall of the heat dissipation cover (1), a handle (107) is fixedly connected to the outer wall of the sealed door (106), and a control panel (108) is fixedly installed on the outer wall of the sealed door (106).

Images