Multifunctional LED display screen

Abstract

The utility model provides a multifunctional light-emitting diode (LED) display screen, which relates to the technical field of LED display screens and comprises a concentric-square-shaped plate, two mounting plates are fixedly mounted on the surfaces of two sides of the concentric-square-shaped plate, an LED display screen body is fixedly mounted between the inner walls of the upper end and the lower end of the concentric-square-shaped plate, and a dustproof component is arranged on the surface of the inner wall of the concentric-square-shaped plate. A dust removal assembly is arranged between the inner walls of the upper end and the lower end of the concentric-square-shaped plate, a water spraying assembly is arranged on the surface of one side of the concentric-square-shaped plate, the dust removal assembly comprises three long grooves, the three long grooves are formed in the inner wall surfaces of the left side and the right side of the concentric-square-shaped plate and the inner wall surface of the bottom of the concentric-square-shaped plate, and the long grooves in the inner wall surfaces of the left side and the right side of the concentric-square-shaped plate are all through grooves. The three long grooves are sequentially and correspondingly communicated. According to the dustproof LED display screen, the two dustproof doors are matched with the concentric-square-shaped plate to wrap the LED display screen body for dust prevention and protection, so that the LED display screen body can be subjected to dust prevention treatment when not used, the LED display screen body is prevented from being influenced by dust, and meanwhile, the multifunctionality of the device is embodied.

Description

Technical Field

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

[0002] LED display is a flat panel display composed of small LED module panels. It is used to display text, images, videos and other information. LED electronic display integrates microelectronics technology, computer technology and information processing. It has the advantages of bright colors, wide dynamic range, high brightness, long life, stable and reliable operation. LED display is widely used in commercial media, cultural performance market, sports stadiums, information dissemination, news release, securities trading, etc., and can meet the needs of different environments.

[0003] However, in the existing technology, some LED display screens are installed outdoors and mounted on the wall using a fixed structure. However, there is a lot of dust in the air. If the LED display screen is exposed to the air for a long time, a layer of dust may adhere to its surface, making the LED display screen look blurry and affecting the use of the LED display screen. Utility Model Content

[0004] The purpose of the utility model is to solve the problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a multifunctional LED display screen, comprising: a circular plate, two mounting plates are fixedly installed on both side surfaces of the circular plate, an LED display screen body is fixedly installed between the upper and lower inner walls of the circular plate, a dustproof component is provided on the inner wall surface of the circular plate, a dust cleaning component is provided between the upper and lower inner walls of the circular plate, a water spray component is provided on one side surface of the circular plate, the dustproof component includes three long grooves, the three long grooves are opened on the left and right inner wall surfaces and the bottom inner wall surface of the circular plate, the long grooves on the left and right inner wall surfaces of the circular plate are all through grooves, the three long grooves are connected in sequence, and there are two dustproof doors sliding in the interior of the three long grooves.

[0006] As a preferred embodiment, a cross groove is provided on one side of the top surface of the circular plate, and the cross groove is located directly above the long groove on the inner wall surface of the bottom of the circular plate. Two cross blocks are fitted and slid inside the cross groove, and the bottom surfaces of the two cross blocks are fixedly connected to one side of the top surface of the two dust doors. A T-shaped groove is provided in the center of the top surface of the circular plate, and two T-shaped plates are fitted and slid inside the T-shaped groove. One side surface of the two cross blocks is fixedly installed with a connecting plate, and the two connecting plates are fixedly connected to the two T-shaped plates at one end away from the two cross blocks, and a rack is fixedly installed on one side surface of the two T-shaped plates.

[0007] As a preferred embodiment, L-shaped plates are fixedly installed on both sides of the top surface of the circular plate, and a rotating shaft is connected between the top inner wall surfaces of the two L-shaped plates and the top surface of the circular plate through bearings. The surfaces of the two rotating shafts are fixedly sleeved with gears, and the two gears and the two racks are meshed with each other. The surfaces of the two rotating shafts are fixedly sleeved with worm gears, and the two worm gears are correspondingly located on the upper sides of the two gears.

[0008] As a preferred embodiment, two vertical plates are fixedly installed on the top surface of the circular plate, and one side surface of the two vertical plates is connected to a worm through a bearing, and the two worms and two worm wheels are correspondingly engaged with each other. A double-headed motor is fixedly installed at the center of the top surface of the circular plate, and the two output ends of the double-headed motor are correspondingly fixedly connected to one end of the two worms.

[0009] As a preferred embodiment, the dust cleaning assembly includes two threaded rods, which are symmetrically connected to the upper and lower inner wall surfaces on both sides of the circular plate through bearings, and the surfaces of the two threaded rods are threadedly connected with movable blocks, and a U-shaped plate is fixedly connected between the one side surfaces of the two movable blocks, and a rubber scraper is fixedly installed on the inner wall surface of one side of the U-shaped plate, and the rubber scraper fits the LED display body, and the bottoms of the two threaded rods are movable and pass through the bottom inner wall surface of the circular plate, and the bottom end surfaces of the two threaded rods are fixedly installed with a first bevel gear.

[0010] As a preferred embodiment, a plurality of baffles are fixedly mounted on the bottom surface of the circular plate, and the baffles are symmetrically distributed on the two side surfaces of the bottom of the circular plate in a group of two. A rotating rod is connected between the two groups of baffles through a bearing, and a motor is fixedly mounted on one side surface of one of the baffles, and the output end of the motor moves through one of the baffles and is fixedly connected to one end of one of the rotating rods.

[0011] As a preferred embodiment, the surfaces of the two rotating rods are fixedly provided with a second bevel gear, the two second bevel gears and the two first bevel gears are correspondingly meshed with each other, and the surfaces of the two rotating rods are fixedly provided with a belt roller, and a transmission belt is connected between the two belt rollers.

[0012] As a preferred embodiment, the water spray assembly includes a water tank, which is fixedly mounted on one side surface of the circular plate, and a water inlet is connected to one side surface of the water tank, and a water pump is fixedly mounted on the other side surface of the water tank, and the input end of the water pump is fixedly connected to a water suction pipe, and the other end of the water suction pipe is connected to the water tank, and a water outlet pipe is fixedly connected between the inner wall surfaces on both sides of the circular plate, and a plurality of atomizing nozzles are evenly and fixedly connected to the outer wall surface of the water outlet pipe, one end of the water outlet pipe passes through the inner wall surface of one side of the circular plate and is fixedly connected to the output end of the water pump, and a discharge groove is provided on the inner wall surface of the bottom plate of the circular plate, and the inner wall surface of one side of the discharge groove is flush with the screen of the LED display screen body.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. In this utility model, when the LED display screen is not in use, it is necessary to prevent dust from adhering to the surface of the LED display screen. First, the double-headed motor is operated by an external controller. The operation of the double-headed motor drives the two worms to rotate. The two worms rotate and the two worm wheels mesh with each other. Since the spiral lines on the surfaces of the two worms are in opposite directions, the two shafts rotate in opposite directions. The opposite rotation of the two shafts drives the two gears to rotate in opposite directions. The two gears rotate in opposite directions and mesh with the two racks, so that the two T-plates move in opposite directions inside the T-slot. A connecting plate is connected between the two T-plates and the two cross blocks, and then The two cross blocks slide in opposite directions inside the cross slot, and the two cross blocks slide in opposite directions inside the cross slot, driving the two dustproof doors to move in opposite directions inside the multiple long slots. When the two dustproof doors are closed together, the double-headed motor can be stopped, and the LED display screen body can be wrapped by the dustproof doors and the return plate. Through the cooperation of the above structure, the two dustproof doors cooperate with the return plate to wrap the LED display screen body for dustproof and protection, so that the LED display screen body can be dustproof when not in use, avoiding the LED display screen body from being affected by dust, and at the same time reflecting the versatility of the device.

[0015] 2. According to the utility model, when it is necessary to clean the dust on the surface of the LED display screen, the motor is first controlled by an external controller to operate. The operation of the motor drives one of the rotating rods to rotate, and the rotation of one of the rotating rods drives one of the belt rollers to rotate. Since a transmission belt is connected between the two belt rollers, the two rotating rods rotate at the same time. The simultaneous rotation of the two rotating rods drives the two second bevel gears to rotate synchronously. The synchronous rotation of the two second bevel gears and the corresponding engagement between the two first bevel gears make the two threaded rods rotate synchronously. The threads on the surfaces of the two threaded rods are in the same direction, and a U-shaped plate is connected between the two movable blocks, so that the two movable blocks move on the surfaces of the two threaded rods. The movement of the two movable blocks drives the movement of the U-shaped plate, and the movement of the U-shaped plate drives the movement of the rubber scraper. The motor is a forward and reverse motor. The forward and reverse rotation of the motor is controlled by the external controller, thereby driving The rubber scraper moves back and forth on the surface of the LED display screen body, and then the water pump is started by an external controller. The water pump starts to push the cleaning liquid inside the water tank through the suction pipe and the outlet pipe in turn, and finally sprays it out through multiple atomizing nozzles, so that the cleaning liquid is sprayed on the screen surface of the LED display screen body, and the rubber scraper is used to repeatedly clean the dust on the surface of the LED display screen body. When the cleaning is complete, the water pump is turned off and the brush is moved to the bottom or top without affecting the display content of the LED display screen. Through the cooperation of the above structure, the atomizing nozzle sprays the cleaning liquid onto the screen surface of the LED display screen body, and the rubber scraper is used to move back and forth on the surface of the LED display screen body, thereby repeatedly cleaning the dust on the surface of the LED display screen body, avoiding the LED display screen body from being affected by dust during use, and at the same time reflecting the versatility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a multifunctional LED display screen provided by the utility model;

[0017] Figure 2 This is a schematic diagram of the partially disassembled structure of a multifunctional LED display screen provided by the utility model;

[0018] Figure 3 This is a structural diagram of a multifunctional dust-proof door for an LED display screen provided by the utility model;

[0019] Figure 4 A multifunctional LED display screen provided by the utility model Figure 1 Schematic diagram of the left view structure;

[0020] Figure 5 A multifunctional LED display screen provided by the utility model Figure 2 Schematic diagram of the structure viewed from above;

[0021] Figure 6A multifunctional LED display screen provided by the utility model Figure 2 Schematic diagram of the bottom structure;

[0022] Figure 7 A multifunctional LED display screen provided by the utility model Figure 4 Schematic diagram of the structure of A;

[0023] Figure 8 A multifunctional LED display screen provided by the utility model Figure 6 Schematic diagram of the structure of B.

[0024] Legend:

[0025] 1. Retractable plate; 2. Mounting plate; 3. LED display screen; 4. Dustproof assembly; 401. Long slot; 402. Dustproof door; 403. Cross slot; 404. Cross block; 405. T-slot; 406. T-plate; 407. Connecting plate; 408. Rack; 409. L-plate; 410. Rotating shaft; 411. Gear; 412. Worm gear; 413. Vertical plate; 414. Worm; 415. Double-head motor; 5. Cleaning assembly; 5 01. Threaded rod; 502. Movable block; 503. U-shaped plate; 504. Rubber scraper; 505. First bevel gear; 506. Baffle; 507. Rotating rod; 508. Motor; 509. Second bevel gear; 510. Belt roller; 511. Drive belt; 6. Water spray assembly; 601. Water tank; 602. Water inlet; 603. Water pump; 604. Water suction pipe; 605. Water outlet pipe; 606. Atomizing nozzle; 607. Discharge chute. DETAILED DESCRIPTION

[0026] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-8The utility model provides a technical solution: a multifunctional LED display screen, comprising: a circular plate 1, two mounting plates 2 are fixedly installed on both side surfaces of the circular plate 1, an LED display screen body 3 is fixedly installed between the upper and lower inner walls of the circular plate 1, a dustproof component 4 is provided on the inner wall surface of the circular plate 1, a dust cleaning component 5 is provided between the upper and lower inner walls of the circular plate 1, a water spray component 6 is provided on one side surface of the circular plate 1, the dustproof component 4 includes three long grooves 401, the three long grooves 401 are opened on the left and right inner wall surfaces and the bottom inner wall surface of the circular plate 1, the long grooves 401 on the left and right inner wall surfaces of the circular plate 1 are all through grooves, the three long grooves 401 are connected in sequence, and there are two dustproof doors 402 that fit and slide inside the three long grooves 401.

[0028] Specifically: the double-headed motor 415 and the motor 508 are both forward and reverse motors 508, and the three long slots 401 are connected by this. The long slots 401 on the left and right sides are through slots, ensuring that the two dustproof doors 402 can slide inside the multiple long slots 401, and the four sides of the two dustproof doors 402 correspond to the inner wall surfaces of the multiple long slots 401; the surface of the outdoor wall is pre-opened with pipeline holes at the location where the LED display screen is installed, and the power lines of the LED display screen body 3, the double-headed motor 415, the motor 508 and the water pump 603 are connected to the power supply equipment through the pipeline holes.

[0029] In one embodiment, a cross groove 403 is provided on one side of the top surface of the circular plate 1, and the cross groove 403 is located directly above the long groove 401 on the inner wall surface of the bottom of the circular plate 1. Two cross blocks 404 are fitted and slid inside the cross groove 403, and the bottom surfaces of the two cross blocks 404 are fixedly connected to one side of the top surface of the two dustproof doors 402. A T-slot 405 is provided in the center of the top surface of the circular plate 1, and two T-plates 406 are fitted and slid inside the T-slot 405. A connecting plate 407 is fixedly installed on one side surface of the two cross blocks 404, and the two connecting plates 407 are fixedly connected to the two T-plates 406 at one end away from the two cross blocks 404, and a rack 408 is fixedly installed on one side surface of the two T-plates 406.

[0030] Specifically: the two cross blocks 404 are fixedly connected to the two dustproof doors 402. The two cross blocks 404 prevent the dustproof doors 402 from escaping from the inside of the return plate 1, and at the same time prevent the two T-shaped plates 406 from escaping from the inside of the T-shaped slot 405; when the two cross plates move to the extreme ends of the cross slot, the two T-shaped plates 406 are still inside the T-shaped slot 405.

[0031] In one embodiment, L-shaped plates 409 are fixedly installed on both sides of the top surface of the circular plate 1, and a rotating shaft 410 is connected between the top inner wall surfaces of the two L-shaped plates 409 and the top surface of the circular plate 1 through bearings. The surfaces of the two rotating shafts 410 are fixedly sleeved with gears 411, and the two gears 411 and the two racks 408 are meshed with each other. The surfaces of the two rotating shafts 410 are fixedly sleeved with worm gears 412, and the two worm gears 412 are correspondingly located on the upper sides of the two gears 411.

[0032] Specifically, the gear 411 and the rack 408 drive the two T-shaped plates 406 to slide inside the T-shaped slot 405. When the two T-shaped plates 406 move to the extreme ends, the two gears 411 are always meshed with the two racks 408.

[0033] In one embodiment, two vertical plates 413 are fixedly installed on the top surface of the circular plate 1, and one side surface of the two vertical plates 413 is connected to a worm 414 through a bearing. The two worms 414 and the two worm wheels 412 are meshed with each other. A double-headed motor 415 is fixedly installed at the center of the top surface of the circular plate 1, and the two output ends of the double-headed motor 415 are fixedly connected to one end of the two worms 414.

[0034] Specifically, the spiral lines on the surfaces of the two worms 414 are in opposite directions, and the two worms 414 rotate to cause the two worm wheels 412 to rotate relative to each other.

[0035] In one embodiment, the dust cleaning component 5 includes two threaded rods 501, which are symmetrically connected to the upper and lower inner wall surfaces on both sides of the circular plate 1 through bearings. The surfaces of the two threaded rods 501 are threadedly connected with movable blocks 502. A U-shaped plate 503 is fixedly connected between the one side surfaces of the two movable blocks 502. A rubber scraper 504 is fixedly installed on the inner wall surface of one side of the U-shaped plate 503. The rubber scraper 504 fits the LED display body 3. The bottoms of the two threaded rods 501 are movable and penetrate the bottom inner wall surface of the circular plate 1. The bottom end surfaces of the two threaded rods 501 are fixedly installed with a first bevel gear 505.

[0036] Specifically, one side of the rubber scraper 504 is in contact with the surface of the LED display screen body 3 to clean the surface of the LED display screen body 3 . The threads of the two threaded rods 501 have the same direction to ensure that the two movable blocks 502 can be driven to move synchronously.

[0037] In one embodiment, a plurality of baffles 506 are fixedly mounted on the bottom surface of the circular plate 1, and the baffles 506 are symmetrically distributed on the two side surfaces of the bottom of the circular plate 1 in groups of two. A rotating rod 507 is connected between the two groups of baffles 506 through a bearing. A motor 508 is fixedly mounted on one side surface of one of the baffles 506, and the output end of the motor 508 is movable through one of the baffles 506 and fixedly connected to one end of one of the rotating rods 507.

[0038] Specifically, the motor 508 drives one of the rotating rods 507 to rotate.

[0039] In one embodiment, the surfaces of the two rotating rods 507 are fixedly provided with second bevel gears 509, the two second bevel gears 509 and the two first bevel gears 505 are correspondingly meshed with each other, and the surfaces of the two rotating rods 507 are fixedly provided with belt rollers 510, and a transmission belt 511 is connected between the two belt rollers 510.

[0040] Specifically, the two belt rollers 510 and the transmission belt 511 cooperate to make the two rotating rods 507 rotate synchronously, and the second bevel gear 509 and the first bevel gear 505 cooperate to drive the threaded rod 501 to rotate.

[0041] In one embodiment, the water spray assembly 6 includes a water tank 601, which is fixedly installed on one side surface of the circular plate 1. One side surface of the water tank 601 is connected with a water inlet 602, and the other side surface of the water tank 601 is fixedly installed with a water pump 603. The input end of the water pump 603 is fixedly connected with a water suction pipe 604, and the other end of the water suction pipe 604 is connected with the water tank 601. A water outlet pipe 605 is fixedly connected between the inner wall surfaces of both sides of the circular plate 1, and a plurality of atomizing nozzles 606 are evenly and fixedly connected to the outer wall surface of the water outlet pipe 605. One end of the water outlet pipe 605 passes through the inner wall surface of one side of the circular plate 1 and is fixedly connected to the output end of the water pump 603. A discharge groove 607 is provided on the inner wall surface of the bottom plate of the circular plate 1, and the inner wall surface of one side of the discharge groove 607 is flush with the screen of the LED display screen body 3.

[0042] Specifically: the interior of the water tank 601 is filled with cleaning liquid, and the water pump 603 sequentially pumps the cleaning liquid inside the water tank 601 through the water suction pipe 604 and the water outlet pipe 605, and finally sprays it out from multiple atomizing nozzles 606. The discharge groove 607 is level with the screen of the LED display body 3, which plays a role in removing the scraped dust and water mist; a water inlet 602 is connected to the surface of one side of the water tank 601, and the cleaning liquid can be regularly added to the interior of the water tank 601 through the water inlet 602.

[0043] Working principle: The circular plate 1 is fixedly mounted on the wall through multiple mounting plates 2 on both sides, so that the LED display screen body 3 is fixedly mounted on the wall surface. When the LED display screen body 3 is not in use, it is necessary to prevent dust from adhering to the surface of the LED display screen body 3. First, the double-headed motor 415 is operated by the external controller. The operation of the double-headed motor 415 drives the two worms 414 to rotate. The rotation of the two worms 414 and the corresponding engagement between the two worm wheels 412. Since the spiral lines on the surfaces of the two worms 414 are in opposite directions, the two rotating shafts 410 rotate in opposite directions. The opposite rotation of the two rotating shafts 410 drives the two gears 411 to rotate in opposite directions. The opposite rotation of the two gears 411 and the corresponding engagement between the two racks 408 make the two T-plates 406 move in opposite directions inside the T-slot 405. The two T-plates 406 move in opposite directions inside the T-slot 405. A connecting plate 407 is correspondingly connected between the plate 406 and the two cross blocks 404, so that the two cross blocks 404 slide in opposite directions inside the cross slot 403. The two cross blocks 404 slide in opposite directions inside the cross slot 403, driving the two dustproof doors 402 to move in opposite directions inside the multiple long slots 401. When the two dustproof doors 402 are closed together, the double-headed motor 415 can be stopped, and the LED display screen body 3 can be wrapped by the dustproof doors 402 and the return plate 1. Through the cooperation of the above structure, the two dustproof doors 402 cooperate with the return plate 1 to wrap the LED display screen body 3 for dustproof and protection, so that the LED display screen body 3 can be dustproof when not in use, thereby preventing the LED display screen body 3 from being affected by dust, and at the same time reflecting the versatility of the device.When it is necessary to clean the dust on the surface of the LED display body 3, the motor 508 is first controlled to operate through the external controller. The operation of the motor 508 drives one of the rotating rods 507 to rotate, and the rotation of one of the rotating rods 507 drives one of the belt rollers 510 to rotate. Since a transmission belt 511 is connected between the two belt rollers 510, the two rotating rods 507 rotate at the same time, and the two rotating rods 507 rotate at the same time, driving the two second bevel gears 509 to rotate synchronously. The two second bevel gears 509 rotate synchronously and mesh with the two first bevel gears 505, so that the two threaded rods 501 rotate synchronously. The threads on the surfaces of the two threaded rods 501 are in the same direction, and a U-shaped plate 503 is connected between the two movable blocks 502, so that the two movable blocks 502 move on the surfaces of the two threaded rods 501. The movement of the two movable blocks 502 drives the U-shaped plate 503 to move, and the movement of the U-shaped plate 503 drives the rubber scraper 504 to move. The motor 508 is a forward and reverse motor 508, and the forward and reverse directions of the motor 508 are controlled by the external controller. The cleaning fluid is then sprayed out through the plurality of atomizing nozzles 606. The cleaning fluid is then sprayed onto the outer screen surface of the LED display body 3 through the atomizing nozzles 606. The cleaning fluid is then repeatedly cleaned from the outer screen surface of the LED display body 3 by the atomizing nozzles 606. The cleaning fluid is then repeatedly cleaned from the outer screen surface of the LED display body 3 by the atomizing nozzles 606. When the cleaning is complete, the water pump 603 is turned off and the brush is moved to the bottom or top without affecting the content displayed on the LED display. Through the above-mentioned structure, the atomizing nozzles 606 spray the cleaning fluid onto the outer screen surface of the LED display body 3. The atomizing nozzles 606 cooperate with the rubber scraper 504 to reciprocate on the outer screen surface of the LED display body 3, thereby repeatedly cleaning and scraping the dust from the outer screen surface of the LED display body 3. This prevents the LED display body 3 from being affected by dust during use and reflects the versatility of the device.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A multifunctional LED display screen, characterized in that: include: A circular plate (1), two mounting plates (2) are fixedly mounted on both side surfaces of the circular plate (1), an LED display screen body (3) is fixedly mounted between the upper and lower inner walls of the circular plate (1), a dustproof component (4) is provided on the inner wall surface of the circular plate (1), a dust cleaning component (5) is provided between the upper and lower inner walls of the circular plate (1), a water spray component (6) is provided on one side surface of the circular plate (1), the dustproof component (4) includes three long grooves (401), the three long grooves (401) are opened on the left and right inner wall surfaces and the bottom inner wall surface of the circular plate (1), the long grooves (401) on the left and right inner wall surfaces of the circular plate (1) are all through grooves, the three long grooves (401) are connected in sequence, and two dustproof doors (402) are fitted and slidably arranged inside the three long grooves (401).

2. A multifunctional LED display according to claim 1, characterized in that: A cross groove (403) is provided on one side of the top surface of the return plate (1), and the cross groove (403) is located directly above the long groove (401) on the inner wall surface of the bottom of the return plate (1). Two cross blocks (404) are fitted and slidably mounted inside the cross groove (403), and the bottom surfaces of the two cross blocks (404) are fixedly connected to one side of the top surface of the two dustproof doors (402). A T-shaped groove (405) is provided at the center of the top surface of the return plate (1), and two T-shaped plates (406) are fitted and slidably mounted inside the T-shaped groove (405). A connecting plate (407) is fixedly mounted on one side surface of the two cross blocks (404), and one end of the two connecting plates (407) away from the two cross blocks (404) is fixedly connected to the two T-shaped plates (406) accordingly. A rack (408) is fixedly mounted on one side surface of the two T-shaped plates (406).

3. The multifunctional LED display screen according to claim 1, characterized in that: L-shaped plates (409) are fixedly installed on both sides of the top surface of the return plate (1); a rotating shaft (410) is connected between the top inner wall surfaces of the two L-shaped plates (409) and the top surface of the return plate (1) through a bearing; a gear (411) is fixedly sleeved on the surface of the two rotating shafts (410); the two gears (411) and the two racks (408) are meshed with each other; a worm gear (412) is fixedly sleeved on the surface of the two rotating shafts (410); the two worm gears (412) are correspondingly located on the upper sides of the two gears (411).

4. The multifunctional LED display screen according to claim 1, characterized in that: Two vertical plates (413) are fixedly mounted on the top surface of the return plate (1), one side surface of each of the two vertical plates (413) is connected to a worm (414) via a bearing, the two worms (414) and the two worm wheels (412) are correspondingly engaged with each other, a double-headed motor (415) is fixedly mounted at the center of the top surface of the return plate (1), and two output ends of the double-headed motor (415) are correspondingly fixedly connected to one end of the two worms (414).

5. The multifunctional LED display screen according to claim 1, characterized in that: The dust cleaning assembly (5) comprises two threaded rods (501), the two threaded rods (501) are symmetrically connected to the upper and lower inner wall surfaces on both sides of the return plate (1) through bearings, the surfaces of the two threaded rods (501) are threadedly connected to movable blocks (502), a U-shaped plate (503) is fixedly connected between the one side surfaces of the two movable blocks (502), a rubber scraper (504) is fixedly installed on the inner wall surface of one side of the U-shaped plate (503), and the rubber scraper (504) is fitted to the LED display screen body (3), the bottoms of the two threaded rods (501) are movable and penetrate the bottom inner wall surface of the return plate (1), and the bottom end surfaces of the two threaded rods (501) are fixedly installed with a first bevel gear (505).

6. The multifunctional LED display screen according to claim 1, characterized in that: A plurality of baffles (506) are fixedly mounted on the bottom surface of the return plate (1), and the baffles (506) are symmetrically distributed on the two side surfaces of the bottom of the return plate (1) in groups of two. A rotating rod (507) is connected between the two groups of baffles (506) via a bearing. A motor (508) is fixedly mounted on one side surface of one of the baffles (506), and the output end of the motor (508) movably passes through one of the baffles (506) and is fixedly connected to one end of one of the rotating rods (507).

7. The multifunctional LED display screen according to claim 6, characterized in that: The surfaces of the two rotating rods (507) are fixedly sleeved with second bevel gears (509), and the two second bevel gears (509) and the two first bevel gears (505) are correspondingly engaged with each other. The surfaces of the two rotating rods (507) are fixedly sleeved with belt rollers (510), and a transmission belt (511) is connected between the two belt rollers (510).

8. The multifunctional LED display screen according to claim 1, characterized in that: The water spray assembly (6) includes a water tank (601), which is fixedly mounted on one side surface of the circular plate (1), and a water inlet (602) is connected to one side surface of the water tank (601). A water pump (603) is fixedly mounted on the other side surface of the water tank (601), and an input end of the water pump (603) is fixedly connected to a water pumping pipe (604). The other end of the water pumping pipe (604) is connected to the water tank (601). Both sides of the circular plate (1) are connected to the water tank (601). A water outlet pipe (605) is fixedly connected between the inner wall surfaces, and a plurality of atomizing nozzles (606) are evenly and fixedly connected to the outer wall surface of the water outlet pipe (605). One end of the water outlet pipe (605) passes through the inner wall surface of one side of the circular plate (1) and is fixedly connected to the output end of the water pump (603). A discharge groove (607) is provided on the inner wall surface of the bottom plate of the circular plate (1), and the inner wall surface of one side of the discharge groove (607) is flush with the screen of the LED display screen body (3).

Images