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CN-122024594-A - Dustproof LED display screen

CN122024594ACN 122024594 ACN122024594 ACN 122024594ACN-122024594-A

Abstract

The invention discloses a dustproof LED display screen, which comprises an LED display screen body and a mounting frame arranged at the outer edge of the LED display screen body, wherein a dustproof structure is arranged on the mounting frame. The dustproof structure comprises a winding box, a winding shaft and a coil spring, wherein the winding shaft is wound with dustproof oil cloth, and the dustproof oil cloth can be automatically wound under the action of the coil spring or pulled out through a pull rod and hung at the bottom of the side edge so as to shield the front of the display screen. The rolling box is internally provided with a supporting shaft and a cleaning and scraping piece, the cleaning and scraping piece is pressed against the surface of the tarpaulin, and the tarpaulin is cleaned and brushed by matching with a gear and brush hair driven by the rolling shaft through an extension shaft; the two ends of the winding box are provided with blowing structures, air is blown into the box body through an air cylinder, an air inlet pipe and an air outlet pipe, and dust is blown to the dust collecting box at the rear opening; a dust collecting bag and an air hole are arranged in the dust collecting box to intensively collect dust in the dust carrying airflow; the structure has dustproof shielding and automatic dust removing functions, reduces maintenance frequency and prolongs the service life of the LED display screen.

Inventors

  • LIU YANG

Assignees

  • 深圳市山本光电股份有限公司

Dates

Publication Date
20260512
Application Date
20260205

Claims (9)

  1. 1. The utility model provides a can dirt-proof LED display screen, includes LED display screen body (1), a serial communication port, be equipped with dustproof construction (3) on LED display screen body (1) through installing frame (2), dustproof construction (3) are including rolling box (31), and all are equipped with in rolling box (31) and hold box A (31), and run through in rolling box (31) have rolling axle (32), and the both ends of rolling axle (32) extend to holding box A (31), rolling axle (32) are equipped with two wind spring (33), and two wind spring (33) are located and hold box A (31), and the both ends of wind spring (33) are connected with holding box A (31) inner wall and rolling axle (32) respectively, rolling axle (32) are convoluteed and are had dustproof oilcloth (34), and dustproof oilcloth (34) one end is connected in rolling axle (32), the other end through holding box A (31) on set up front opening (311) and extend to holding box A (31) outside, and the other end of oilcloth (34) has link (341), and link up and link (342) on the link.
  2. 2. The dustproof LED display screen according to claim 1, wherein the mounting frame (2) comprises a top edge (21), two ends of the top edge (21) are respectively hinged with a side edge a (22) and a side edge B (23), and concave clamping grooves matched with the top and the side parts of the LED display screen body (1) are formed in the opposite surfaces of the bottom of the top edge (21) and the side edges a (22) and B (23).
  3. 3. The dustproof LED display screen according to claim 1, wherein a supporting shaft (35) for supporting the dustproof tarpaulin (34) is arranged in the winding box (31), the horizontal height position of the supporting shaft (35) is higher than that of the winding shaft (32), a top opening (312) is formed in the top of the winding box (31), a cleaning piece (5) is arranged in the top opening (312) and extends into the winding box (31), and the cleaning piece (5) is located above the supporting shaft (35).
  4. 4. A dustproof LED display screen according to claim 3, characterized in that the scraping member (5) comprises a connecting rod (52), the bottom of the connecting rod (52) is connected with a scraping frame (53) and extends to the inside of the winding box (31) through a top opening (312) to be pressed on the surface of the dustproof tarpaulin (34), a connecting sheet (51) is fixed on the side of the connecting rod (52), and the connecting sheet (51) is connected to the top of the winding box (31) through a screw.
  5. 5. The dustproof LED display screen according to claim 1, wherein a separation plate A (36) and a separation plate B (37) are arranged in the winding box (31), the separation plate A (36) is located above the dustproof tarpaulin (34), two sides of the separation plate A (36) are connected to two inner side walls of the winding box (31), the front side of the separation plate A (36) is contacted with the surface of the scraping frame (53) near the bottom, the rear side of the separation plate A (36) is connected to the inner rear wall of the winding box (31) and located below a rear opening (313) formed in the winding box (31), two sides of the separation plate B (37) are connected to two inner side walls of the winding box (31), the front wall of the separation plate B (37) is connected in the winding box (31), and the rear side of the separation plate B (37) is near the dustproof tarpaulin (34).
  6. 6. The dustproof LED display screen according to claim 1, wherein the winding box (31) is provided with a blowing structure (4) at two ends, the blowing structure (4) further comprises an air cylinder (42) connected with the accommodating box A (331), the blowing structure (4) comprises an extension shaft (321) connected with the end of the winding shaft (32), the extension shaft (321) extends into the air cylinder (42), the extension shaft (321) is provided with an impeller (41) and is located in the air cylinder (42), the air cylinder (42) is communicated with an air outlet pipe (421) and an air inlet pipe (422), and one end, far away from the air cylinder 42, of the air outlet pipe (42) 1 is connected with an air inlet hole 314 formed in the winding box 32.
  7. 7. A dustproof LED display screen according to claim 1, characterized in that the winding box (31) is provided with a cleaning structure (6), the cleaning structure (6) comprises a containing box B (64) connected with the air cylinder (42), the cleaning member (61) further comprises a large gear (63) connected with the extension shaft (321), the large gear (63) is positioned in the containing box B (64), the cleaning member (61) further comprises a cleaning member (61), the cleaning member (61) comprises a shaft rod penetrating through the winding box (31), the end part of the shaft rod extends into the containing box B (64), a small gear (62) is arranged on the shaft rod at a position close to the end part and is meshed with the large gear (63), and a plurality of bristles are arranged on the shaft rod and positioned in the winding box B (64) to be in surface contact with the dustproof oil cloth (34).
  8. 8. The dustproof LED display screen according to claim 1, wherein a dust collecting structure (7) is arranged at a position of a rear opening (313) formed in the winding box (31), the dust collecting structure (7) comprises a dust collecting box (72), a dust collecting bag is arranged in the dust collecting box (72), and ventilation holes (722) are formed in the bottom of the dust collecting box (72).
  9. 9. The dustproof LED display screen according to claim 8, wherein the dust collecting box (72) is connected with two insert blocks (721), the outer parts of the insert blocks (721) are respectively sleeved with a matched anti-drop block (71), the anti-drop blocks (71) are connected to the winding box (31) through screws, and the rear opening (313) is positioned between the two anti-drop blocks (71); A supporting grille (73) is arranged in the dust collection box (72), and the supporting grille (73) is positioned above the inner bottom of the dust collection box (72); the air holes (722) are communicated with one end of the air inlet pipe (422) far away from the air cylinder (42).

Description

Dustproof LED display screen Technical Field The invention relates to the technical field of dust prevention of display screens, in particular to a dust-proof LED display screen. Background The LED display screen has the advantages of high brightness, long visible distance, large information display quantity and the like, is widely applied to outdoor billboards, traffic induction screens, indoor conference display scenes and the like, is easily influenced by pollutants such as dust, fly ash, greasy dirt and the like when being exposed to the air for a long time, and can be deposited on the surface of the display screen or cause brightness reduction and uneven display even influence on heat dissipation and electrical insulation performance if the front end lacks effective protection and cleaning measures, so that the service life of the display screen is shortened. In the prior art, a fixed protective cover or simple covering cloth is arranged in front of a display screen, or a manually hung shielding curtain is adopted to cover the display screen when the display screen is stopped or idle, the structure generally only plays a role of static shielding, has no automatic collecting and self-cleaning functions, and can absorb a large amount of dust after being used for a period of time, and the dust can be easily shaken off to the surface of the display screen or the periphery of equipment when being rolled up and unrolled again. Therefore, a need has arisen for a dustproof device which can be reliably matched with an LED display screen for installation, has the automatic folding and unfolding capability of a dustproof curtain, and can clean and intensively collect dust on the surface of the dustproof curtain in the folding and unfolding process, so that the dustproof effect is improved, the secondary pollution of dust is avoided, the maintenance difficulty is reduced, and the service life of the LED display screen is prolonged. Therefore, we propose a dustproof LED display screen to solve the above problems. Disclosure of Invention The invention aims to solve the problems that the existing dustproof device of an LED display screen can only simply shield, cannot effectively clean dustproof curtain cloth, is easy to secondarily fly dust, is frequently maintained and the like, and provides the dustproof LED display screen, and the dustproof oil cloth driven by a coil spring is matched with a scraping structure, a cleaning structure, a blowing structure and a dust collecting structure to realize automatic collection and release of the dustproof curtain and synchronous cleaning and centralized collection of dust, so that the dustproof effect of the display screen is improved, and the use reliability and the maintenance convenience are improved. The invention provides a dustproof LED display screen, which comprises an LED display screen body and a mounting frame fixedly mounted on the outer edge of the display screen body, wherein the mounting frame comprises a top edge and side edges A and B hinged to two ends of the top edge respectively, concave clamping grooves matched with the top and the side parts of the display screen are formed in the direction of one side of the top edge and the two side edges of the display screen body, and the mounting frame can be firmly clamped on the outer side of the LED display screen body through the clamping grooves and screws to form a mounting foundation of a dustproof structure. The dustproof structure comprises a winding box, wherein a containing box A is arranged at two ends of the winding box, a winding shaft is arranged inside the winding box in a penetrating mode, two ends of the winding shaft extend into the containing box A at two sides, a coil spring is arranged on the winding shaft, one end of the coil spring is connected with the inner wall of the containing box A, the other end of the coil spring is connected with the winding shaft so as to store elastic force when the dustproof oilcloth is wound on the winding shaft, one end of the dustproof oilcloth is fixed on the winding shaft, the other end of the dustproof oilcloth extends out through a front opening of the containing box A, a hanging piece and a pull rod connected with the hanging piece are arranged at the front end of the dustproof oilcloth, the dustproof oilcloth is wound into the winding box under the rebound effect of the coil spring in a non-use state, the hanging piece is propped against the edge of the front opening to prevent the oilcloth from being completely wound up, and the oilcloth is pulled downwards through the pull rod and hung on the bottom of a side edge when the dustproof oilcloth is used, so that the dustproof oilcloth covers the front of a display screen. In order to clean dust on the surface of the dustproof tarpaulin in during the winding and unwinding process, a supporting shaft is arranged in the winding box and used for supporting the tarpaulin pulled out from the winding shaft, the s