Novel movable LED display screen

An automated cleaning system with dust-adhesive rollers and cleaning rollers designed on LED displays has solved the problem of dust and dirt on the screen surface, achieving rapid cleaning and extended lifespan.

CN223953760UActive Publication Date: 2026-02-27TRANSTECH LED JIANGSU CO LTD
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Patent Information

Application Number
CN202520478127.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-02-27
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

When using existing portable LED displays, the screen surface is easily contaminated with dust and stains, which affects the display clarity. Traditional cleaning methods are cumbersome and can easily scratch the screen, shortening its lifespan.

Method used

A novel portable LED display screen has been designed, equipped with a dust-adhesive roller and a cleaning roller. It is automatically cleaned through an adhesive layer and soft bristles. Combined with a dust collection mechanism and a power mechanism, it achieves automatic dust collection and avoids scratches caused by manual operation.

Benefits of technology

It enables quick and convenient screen cleaning, ensuring display quality and extending the lifespan of the display.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223953760U_ABST
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Abstract

The utility model relates to the technical field of LED display screens, in particular to a novel movable LED display screen which comprises a base, an installation box is fixedly installed on the top of the base, a center sleeve is fixedly connected to the top of the installation box, a limiting ring is fixedly connected to the top of the center sleeve, and a center rod is arranged on the limiting ring in a sliding and penetrating mode. A display screen is rotatably installed on the center rod, a moving assembly enabling the display screen to move conveniently is installed on the base, an adjusting assembly capable of adjusting the height of the display screen is installed on the center sleeve, the display effect of the display screen is guaranteed, and a cleaning assembly facilitating cleaning of the display screen is installed on the display screen. The surface of the display screen can be conveniently and rapidly cleaned through the cleaning assembly, the watching effect is guaranteed, the display screen is prevented from being scratched due to misoperation, and the service life of the LED display screen is prolonged.
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Description

TECHNICAL FIELD

[0001] The utility model relates to LED display screen technical field, concretely is a novel movable LED display screen. BACKGROUND

[0002] In the current vigorous development of information dissemination technology, LED display screen is widely used in various scenes due to its excellent display performance. Movable LED display screen plays a key role in many fields due to its flexible display information characteristics. However, the existing movable LED display screen generally faces the problem of screen surface easily staining dust, stains and other impurities during daily use.

[0003] Dust and other impurities will continue to adhere to the surface of the display screen, which greatly affects the clarity and visual effect of the display picture, thereby interfering with the accurate transmission of information. When the user uses the traditional manual wiping method for cleaning, not only the operation is cumbersome, a large amount of manpower and time is consumed, but also the display screen is easily scratched due to improper operation, which shortens its service life. In order to conveniently and quickly clean the surface of the display screen, ensure the viewing effect, and avoid scratching the display screen due to improper operation and prolong the service life of the LED display screen, we propose a novel movable LED display screen. UTILITY MODEL CONTENT

[0004] In view of the shortcomings of the prior art, the utility model provides a novel movable LED display screen, which can conveniently and quickly clean the surface of the display screen, ensure the viewing effect, and avoid scratching the display screen due to improper operation and prolong the service life of the LED display screen.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme:

[0006] A novel movable LED display screen, comprising a base, the base top is fixedly installed with installation box, the installation box top is fixedly connected with center sleeve, the center sleeve top is fixedly connected with limit ring, the limit ring is slidably provided with center rod, the center rod is rotatably installed with display screen, the base is installed with mobile assembly for facilitating the movement of the display screen, the center sleeve is installed with adjusting assembly for adjusting the height of the display screen, the display screen is installed with cleaning assembly for facilitating the cleaning of the display screen;

[0007] The cleaning assembly comprises an installation cover, the installation cover is arranged below the display screen, the installation cover inner wall is rotatably provided with a dust sticking roller and a cleaning roller, the dust sticking roller is externally provided with a sticking layer, the cleaning roller is fixedly connected with a plurality of groups of soft bristles, the installation cover is installed with a connecting mechanism connecting the installation cover and the display screen, the installation cover is installed with a dust collecting mechanism for collecting dust, and the installation cover is installed with a power mechanism driving the dust collecting mechanism to operate.

[0008] Preferably, the connecting mechanism comprises two sets of mounting plates fixedly connected at the back side of the display screen, slide rails fixedly connected at the back side of the mounting plates, slide blocks slidingly installed at the side of the slide rails away from each other, springs and telescopic rods fixedly connected at the front side of the slide blocks, connecting blocks fixedly connected at the end of the springs and telescopic rods away from the slide blocks, connecting covers fixedly connected at the side of the connecting blocks close to each other, and the connecting covers fixedly connected with the mounting cover at the side close to the mounting cover.

[0009] Preferably, the dust collecting mechanism comprises a collecting box, the collecting box is connected with the inner wall of the mounting cover by the magnet group, a dust suction port is arranged at the top of the collecting box, two sets of air suction ports are arranged on the mounting cover, two sets of connecting ports corresponding to the air suction ports are arranged on the collecting box, a filter screen is arranged on the connecting port, and an air exhaust port is arranged on the connecting cover.

[0010] Preferably, the power mechanism comprises a driving wheel, the driving wheel is fixedly sleeved outside the dust roller, a driven wheel is fixedly sleeved outside the cleaning roller, a belt is tightly sleeved between the driving wheel and the driven wheel, and a fan blade is fixedly sleeved outside the cleaning roller.

[0011] Preferably, the adjusting assembly comprises a motor, the motor is fixedly installed at the top of the base, a screw rod is fixedly connected with the output end of the motor, the screw rod is threadedly penetrated through the center rod, and a limiting mechanism is installed on the center sleeve to prevent the center rod from rotating with the screw rod.

[0012] Preferably, the limiting mechanism comprises a limiting block, the limiting block is slidingly installed on the inner wall of the center sleeve, the limiting block is fixedly connected with the bottom of the center rod at the top, and the screw rod is threadedly penetrated through the limiting block.

[0013] Preferably, the moving assembly comprises a plurality of fixed blocks, the fixed blocks are fixedly connected at the bottom of the base, a moving cover is slidingly sleeved outside the fixed blocks, a plurality of rollers are fixedly connected at the bottom of the moving cover, and a fixing mechanism is installed on the base to prevent the display screen from being displaced during use.

[0014] Preferably, the fixing mechanism comprises a threaded ring, the threaded ring is fixedly sleeved outside the moving cover, a plurality of rotating covers matched with the threaded ring are rotatably connected at the bottom of the base, threads are arranged on the inner wall of the rotating cover, the threaded ring is threadedly connected with the inner wall of the rotating cover at the outer side, and an anti-skid pad is arranged at the bottom of the rotating cover.

[0015] Preferably, baffles are fixedly connected between the two sets of slide rails, and the baffles are matched with the mounting cover.

[0016] Preferably, a positioning block is fixedly connected at the front side of the collecting box, and a positioning groove matched with the positioning block is arranged on the mounting cover.

[0017] Advantages

[0018] The utility model provides a novel movable LED display screen. Compared with prior art, the following advantages are achieved:

[0019] 1. The novel movable LED display screen, through the cooperation of the roller and the rotating cover, the roller can be retracted into the inner cavity of the rotating cover, the rotating cover supports the ground, the supporting effect is good and the display screen can be prevented from being displaced; at the same time, the screw can be driven to rotate by the motor, the height of the display screen is adjusted, and the display screen can rotate on the central rod, so that the best display height and angle are adjusted, and the viewing experience is improved.

[0020] 2. The novel movable LED display screen, the mounting cover can move forward and backward and up and down under the action of the spring, the telescopic rod, the sliding rail and the sliding block, the display screen surface is contacted and rotated by pulling the mounting cover to make the dust sticking roller, dust on the display screen surface can be adhered; the dust sticking roller drives the cleaning roller and the fan blade to rotate, the soft brush can further clean the dust that is difficult to adhere, the negative pressure is formed in the connecting cover by the rotation of the fan blade, external air together with dust is sucked into the collecting box for storage, the display screen surface can be conveniently and quickly cleaned, the viewing effect is ensured, the display screen is prevented from being scratched, and the service life is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic view of the front view structure of the main body of the utility model;

[0022] Figure 2 It is a schematic view of the rear view structure of the main body of the utility model;

[0023] Figure 3 It is a schematic view of the cross section structure of the main body of the utility model;

[0024] Figure 4 It is an exploded structure schematic view of the connecting mechanism of the utility model;

[0025] Figure 5 It is an exploded structure schematic view of the power mechanism of the utility model;

[0026] Figure 6 It is a schematic view of the connecting mechanism of the utility model; Figure 3 It is an enlarged schematic view of the structure at A of the utility model;

[0027] Figure 7 It is an enlarged schematic view of the structure at B of the utility model; Figure 3 It is an enlarged schematic view of the structure at B of the utility model;

[0028] Figure 8 It is an enlarged schematic view of the structure at C of the utility model. Figure 5 It is an enlarged schematic view of the structure at C of the utility model.

[0029] In the figure: 1, base; 2, mounting box; 3, rotating cover; 4, center sleeve; 5, center rod; 6, limiting ring; 7, mounting cover; 8, connecting cover; 9, display screen; 10, mounting plate; 11, sliding rail; 12, sliding block; 13, connecting block; 14, baffle; 15, collection box; 16, screw rod; 17, limiting block; 18, positioning groove; 19, air outlet; 20, connecting port; 21, spring; 22, telescopic rod; 23, exhaust port; 24, dust sticking roller; 25, cleaning roller; 26, soft brush; 27, fixed block; 28, moving cover; 29, threaded ring; 30, roller; 31, driving wheel; 32, driven wheel; 33, fan blade; 34, positioning block; 35, dust suction port; 36, motor. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] Please refer to Figures 1-8 The utility model provides a kind of technical scheme: a kind of novel movable LED display screen, including base 1, base 1 top is fixedly installed with mounting box 2, and mounting box 2 top is fixedly connected with center sleeve 4, and center sleeve 4 top is fixedly connected with limiting ring 6, and limiting ring 6 is slidably provided with center rod 5, and center rod 5 is rotatably installed with display screen 9, and base 1 is installed with the moving assembly of making display screen 9 easy to move, and center sleeve 4 is installed with the adjusting assembly of the height of display screen 9 can be adjusted, and display screen 9 is installed with the cleaning assembly for facilitating the cleaning of display screen 9;

[0032] Cleaning assembly includes mounting cover 7, and mounting cover 7 is arranged below display screen 9, and dust sticking roller 24 and cleaning roller 25 are rotatably arranged in the inner wall of mounting cover 7, and dust sticking roller 24 is provided with adhesive layer outside, and cleaning roller 25 is fixedly connected with a plurality of groups of soft brush 26 outside, and mounting cover 7 is installed with the connecting mechanism for connecting mounting cover 7 with display screen 9, and mounting cover 7 is installed with the dust collection mechanism for collecting dust, and mounting cover 7 is installed with the power mechanism for driving dust collection mechanism to operate.

[0033] When in use, the display screen 9 can be moved to a suitable position by the moving assembly, the height of the display screen 9 can be adjusted by the adjusting assembly, and the display screen 9 can be rotated on the central rod 5, that is, the angle of the display screen 9 can be adjusted, so that the display screen 9 is at the optimal display height and angle, and the viewing experience of the user is improved. After being used for a period of time, dust floating in the air is attached to the surface of the display screen 9 due to static electricity, air flow and the like, which affects the viewing experience. At this time, the mounting cover 7 can be pulled to the front side, and under the action of the connecting mechanism, the mounting cover 7 can move forward and backward and up and down within a certain range, so that the rear side of the mounting cover 7 is flush with the surface of the display screen 9, and then the mounting cover 7 is moved up and down. At this time, the dust-attaching roller 24 is in contact with the surface of the display screen 9 and rotates with the up-and-down movement of the mounting cover 7, so that the dust on the surface of the display screen 9 is attached to the dust-attaching roller 24. Meanwhile, under the action of the power mechanism, the cleaning roller 25 rotates to drive the soft brush 26 to rotate, so as to further clean the dust that is difficult to be directly attached by the dust-attaching roller 24. The dust generated in the cleaning process is collected by the dust-collecting mechanism, so that the surface of the display screen 9 can be conveniently and quickly cleaned, the viewing effect is ensured, the display screen 9 is prevented from being scratched due to improper operation, and the service life of the display screen 9 is prolonged.

[0034] The connecting mechanism comprises two groups of mounting plates 10, the mounting plates 10 are fixedly connected to the rear side of the display screen 9, the rear side of each mounting plate 10 is fixedly connected with a sliding rail 11, the side away from each other of the two groups of sliding rails 11 is slidably connected with a sliding block 12, the front side of the sliding block 12 is fixedly connected with a spring 21 and an extension rod 22, the end away from the sliding block 12 of the spring 21 and the extension rod 22 is fixedly connected with a connecting block 13, the side close to each other of the two groups of connecting blocks 13 is fixedly connected with a connecting cover 8, and the side close to the mounting cover 7 of the connecting cover 8 is fixedly connected with the mounting cover 7.

[0035] Under the action of the spring 21 and the extension rod 22, the mounting cover 7 can move forward and backward within a certain range, and under the action of the sliding rail 11 and the sliding block 12, the mounting cover 7 can move up and down within a certain range.

[0036] The dust-collecting mechanism comprises a collecting box 15, the collecting box 15 is fixedly connected to the inner wall of the mounting cover 7 by means of magnetic attraction of a magnet group, a dust suction port 35 is formed in the top of the collecting box 15, two groups of air suction ports 19 are formed in the mounting cover 7, two groups of connecting ports 20 corresponding to the air suction ports 19 are formed in the collecting box 15, a filter screen is arranged on the connecting port 20, and an air exhaust port 23 is formed in the connecting cover 8.

[0037] The power mechanism comprises a driving wheel 31, the driving wheel 31 is fixedly sleeved outside the dust-attaching roller 24, a driven wheel 32 is fixedly sleeved outside the cleaning roller 25, a belt is tightly sleeved between the driving wheel 31 and the driven wheel 32, and a fan blade 33 is fixedly sleeved outside the cleaning roller 25.

[0038] When the adhesive roller 24 rotates, the driving wheel 31 drives the driven wheel 32 to rotate, and the cleaning roller 25 and the fan blade 33 rotate, the fan blade 33 generates wind blowing to the exhaust port 23, the air in the connecting cover 8 is discharged from the exhaust port 23, the connecting cover 8 is in a negative pressure state, and then the external air enters the collecting box 15 through the dust suction port 35, and then enters the connecting cover 8 through the air suction port 19 and the connecting port 20, in the process, the dust is sucked into the collecting box 15 and stored.

[0039] The adjusting assembly comprises a motor 36 fixedly installed on the top of the base 1, and a screw rod 16 fixedly connected to the output end of the motor 36, the screw rod 16 is threaded through the central rod 5, and a limiting mechanism is installed on the central sleeve 4 to prevent the central rod 5 from rotating with the screw rod 16.

[0040] The limiting mechanism comprises a limiting block 17 slidably installed on the inner wall of the central sleeve 4, the top of the limiting block 17 is fixedly connected to the bottom of the central rod 5, and the screw rod 16 is threaded through the limiting block 17.

[0041] The motor 36 drives the screw rod 16 to rotate, and the central rod 5 cannot rotate under the action of the limiting block 17, with the rotation of the screw rod 16, the central rod 5 and the limiting block 17 move up and down, and the display screen 9 moves up and down, so that the height of the display screen 9 is adjusted.

[0042] The moving assembly comprises a plurality of fixed blocks 27 fixedly connected to the bottom of the base 1, a moving cover 28 slidably sleeved outside the fixed block 27, and a plurality of rolling wheels 30 fixedly connected to the bottom of the moving cover 28, and a fixing mechanism is installed on the base 1 to prevent the display screen 9 from being displaced during use.

[0043] The fixing mechanism comprises a threaded ring 29 fixedly sleeved outside the moving cover 28, a plurality of rotating covers 3 rotatably connected to the bottom of the base 1 and matched with the threaded ring 29, a screw thread formed in the inner wall of the rotating cover 3, and a non-slip pad arranged on the bottom of the rotating cover 3.

[0044] After the display screen 9 is moved to a suitable position, the rotating cover 3 is manually rotated, the threaded ring 29 is moved upwards, the moving cover 28 and the rolling wheels 30 are moved upwards, and the rolling wheels 30 are retracted into the inner cavity of the rotating cover 3, so that the rotating cover 3 is supported on the ground, compared with directly using the rolling wheels 30 to support, the supporting effect is better and the display screen 9 can be prevented from being displaced during watching.

[0045] The two groups of sliding rails 11 are fixedly connected with a baffle 14 matched with the mounting cover 7. When the cleaning assembly is not used, the baffle 14 shields the rear side of the mounting cover 7 to prevent insects and sundries from entering the mounting cover 7.

[0046] The front side of the collecting box 15 is fixedly connected with a positioning block 34, and the mounting cover 7 is provided with a positioning groove 18 matched with the positioning block 34.

[0047] Working principle: in use, first, the display screen 9 is moved to a suitable position through the roller 30, then the rotating cover 3 is manually rotated, so that the threaded ring 29 moves upward, drives the moving cover 28 and the roller 30 to move upward, until the roller 30 is retracted into the inner cavity of the rotating cover 3, then the rotating cover 3 is supported on the ground, compared with directly supporting by the roller 30, the supporting effect is better and the display screen 9 can be prevented from being displaced during watching, then the motor 36 is started to drive the screw rod 16 to rotate, under the action of the limiting block 17, the center rod 5 cannot rotate, with the rotation of the screw rod 16, the center rod 5 and the limiting block 17 move up and down, drive the display screen 9 to move up and down, so as to adjust the height of the display screen 9, and the display screen 9 can rotate on the center rod 5, that is, the angle of the display screen 9 can be adjusted, so that the display screen 9 is at the best display height and angle, and the watching experience of the user is improved. After being used for a period of time, due to static electricity, air flow and other reasons, dust floating in the air adheres to the surface of the display screen 9, affecting the watching experience, under the action of the spring 21 and the telescopic rod 22, the mounting cover 7 can move forward and backward within a certain range, under the action of the sliding rail 11 and the sliding block 12, the mounting cover 7 can move up and down within a certain range, at this time, the mounting cover 7 can be pulled to the front side, so that the rear side of the mounting cover 7 is flush with the surface of the display screen 9, then the mounting cover 7 is moved up and down, so that the dust sticking roller 24 is in contact with the surface of the display screen 9 and rotates with the mounting cover 7, thereby the dust on the surface of the display screen 9 is adhered to the dust sticking roller 24, at the same time, the rotation of the dust sticking roller 24 drives the driven wheel 32 to rotate through the driving wheel 31, so that the cleaning roller 25 and the fan blade 33 rotate, the rotation of the cleaning roller 25 drives the soft brush 26 to rotate, further cleaning the dust that is difficult to be directly adhered by the dust sticking roller 24, the rotation of the fan blade 33 generates wind blowing to the air outlet 23, the air in the connecting cover 8 is discharged from the air outlet 23, so that the connecting cover 8 is in a negative pressure state, then the external air enters the collecting box 15 through the dust suction port 35, and then enters the connecting cover 8 through the air outlet 19 and the connecting port 20, in this process, the dust is sucked into the collecting box 15 for storage, thereby the surface of the display screen 9 can be conveniently and quickly cleaned, the watching effect is ensured, and the display screen 9 is prevented from being scratched due to improper operation, thereby prolonging the service life of the display screen 9.

[0048] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0049] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A new type of mobile LED display screen comprising a base (1), characterized in that: The base (1) top fixedly installed with installation box (2), the installation box (2) top fixedly connected with center sleeve (4), the center sleeve (4) top fixedly connected with limit ring (6), the limit ring (6) on the sliding center rod (5) is equipped with, the center rod (5) on the rotating installation of display screen (9), the base (1) is installed with the mobile assembly of making display screen (9) easy to move, the center sleeve (4) is installed with the adjusting assembly of the height of display screen (9) can be adjusted, the display screen (9) is installed with the cleaning assembly of facilitating the cleaning of display screen (9), The cleaning assembly includes a mounting cover (7), the mounting cover (7) is arranged below the display screen (9), the inner wall of the mounting cover (7) is rotatably provided with a dust sticking roller (24) and a cleaning roller (25), the dust sticking roller (24) is provided with an adhesive layer outside, the cleaning roller (25) is fixedly connected with a plurality of groups of soft brush (26) outside, the mounting cover (7) is provided with a connecting mechanism for connecting the mounting cover (7) and the display screen (9), the mounting cover (7) is provided with a dust collecting mechanism for collecting dust, and the mounting cover (7) is provided with a power mechanism for driving the dust collecting mechanism to operate.

2. A new mobile LED display screen according to claim 1, characterized by: The connecting mechanism includes two groups of mounting plates (10), the mounting plates (10) are fixedly connected to the rear side of the display screen (9), the rear side of the mounting plate (10) is fixedly connected with a slide rail (11), the slide rails (11) are slidably connected with slide blocks (12) on the sides away from each other, the slide blocks (12) are fixedly connected with springs (21) and telescopic rods (22) on the front side, the springs (21) and the telescopic rods (22) are fixedly connected with connecting blocks (13) on the ends away from the slide blocks (12), the connecting blocks (13) are fixedly connected with connecting covers (8) on the sides close to each other, and the connecting cover (8) is fixedly connected with the mounting cover (7) on the side close to the mounting cover (7).

3. A new mobile LED display screen according to claim 2, characterized by: The dust collecting mechanism includes a collecting box (15), the collecting box (15) is connected to the inner wall of the mounting cover (7) by a magnet group, the collecting box (15) is provided with a dust suction port (35) on the top, the mounting cover (7) is provided with two groups of air suction ports (19), the collecting box (15) is provided with two groups of connecting ports (20) corresponding to the air suction ports (19), the connecting ports (20) are provided with filter screens, and the connecting cover (8) is provided with an air exhaust port (23).

4. A new mobile LED display screen according to claim 3, characterized by: The power mechanism includes a driving wheel (31), the driving wheel (31) is fixedly sleeved outside the dust sticking roller (24), the cleaning roller (25) is fixedly sleeved with a driven wheel (32) outside, the driving wheel (31) and the driven wheel (32) are tensioned and connected with a belt, and the cleaning roller (25) is fixedly sleeved with a fan blade (33).

5. A new mobile LED display screen according to claim 4, characterized by: The adjusting assembly comprises a motor (36) fixedly installed on the top of the base (1), the output end of the motor (36) is fixedly connected with a screw rod (16), the screw rod (16) is threaded through the central rod (5), and the central sleeve (4) is provided with a limiting mechanism for avoiding the rotation of the central rod (5) along with the screw rod (16).

6. A new mobile LED display screen according to claim 5, characterized by: The limiting mechanism comprises a limiting block (17) slidingly installed on the inner wall of the central sleeve (4), the top of the limiting block (17) is fixedly connected with the bottom of the central rod (5), and the screw rod (16) is threaded through the limiting block (17).

7. A new mobile LED display screen according to claim 6, characterized by: The moving assembly comprises a plurality of fixed blocks (27) fixedly connected with the bottom of the base (1), the outer surface of the fixed block (27) is slidingly sleeved with a moving cover (28), the bottom of the moving cover (28) is fixedly connected with a plurality of rolling wheels (30), and the base (1) is provided with a fixing mechanism for avoiding the displacement of the display screen (9) during use.

8. A new mobile LED display screen according to claim 7, characterized by: The fixing mechanism comprises a threaded ring (29) fixedly sleeved on the outer surface of the moving cover (28), the bottom of the base (1) is rotatably connected with a plurality of rotating covers (3) matched with the threaded ring (29), the inner wall of the rotating cover (3) is provided with threads, the outer surface of the threaded ring (29) is screw-connected with the inner wall of the rotating cover (3), and the bottom of the rotating cover (3) is provided with an anti-skid pad.

9. A new mobile LED display screen according to claim 8, characterized by: The two groups of sliding rails (11) are fixedly connected with a baffle (14) matched with the mounting cover (7).

10. A new mobile LED display screen according to claim 9, characterized by: The front side of the collecting box (15) is fixedly connected with a positioning block (34), and the mounting cover (7) is provided with a positioning groove (18) matched with the positioning block (34).