A dust cover for outdoor LED display screen

Abstract

The utility model relates to the technical field of dust prevention for display screens, and discloses a dust-proof cover for an outdoor LED display screen, which includes an LED display screen main body. A protective outer shell is fixedly installed on the outer wall of the LED display screen main body. The protective outer shell is in a rectangular shape with a connecting through groove for limiting being formed on the inner wall of the protective outer shell. A rotatable winding roller is movably installed at the top position in the cavity of the protective outer shell. A shielding rain cloth for dust prevention is wound around the outer wall of the winding roller. During the use of the utility model, through a driving mechanism, the winding roller rotates forward, the shielding rain cloth is released by the winding roller, and the counterweight block starts to move downward with the lower end of the shielding rain cloth until the counterweight block is located at the bottom in the cavity of the protective outer shell. The shielding rain cloth will shield the LED display screen main body, achieving a dust-proof effect. In addition, during the movement of the counterweight block, the flexible cleaning cylinder will clean the front side wall surface of the LED display screen main body, improving the cleanliness of the surface of the LED display screen main body.

Description

Technical Field

[0001] The utility model relates to the technical field of dustproofing of display screens, in particular to a dustproof cover for an outdoor LED display screen. Background Art

[0002] After searching the public (announcement) number: CN211475350U, a dust cover for an outdoor LED display screen is found. Aiming at the problems that the existing LED display screen has poor protection measures, is easily damaged, and has poor stability and is easy to overturn, posing a safety hazard, the following scheme is proposed, which includes a base, a fixing plate is fixedly installed on the top of the base, a fixing hole is provided on one side of the fixing plate, a rotating column is rotatably installed in the fixing hole, a mounting plate is fixedly installed on one end of the rotating column, a display screen is fixedly installed on one side of the mounting plate, a gear is fixedly installed on one side of the mounting plate, a control groove is provided on the bottom inner wall of the fixing hole, a rack is slidably installed in the control groove, the rack is meshed with the gear, and a threaded groove is provided at the bottom of the rack.

[0003] During the use of the above-mentioned known technology, when the LED display screen is not in use, the LED display screen is shielded by a dustproof plate to achieve a dust-proof effect. However, during the use of the LED display screen, a layer of dust will adhere to its surface. If it is not cleaned, it will also affect the viewing effect of the LED display screen. The above-mentioned known technology cannot clean it and cannot ensure the cleanliness of the LED display screen.

[0004] To this end, we propose a dust cover for an outdoor LED display screen. Utility Model Content

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a dust cover for an outdoor LED display screen.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a dust cover for an outdoor LED display screen, comprising an LED display screen body, a protective shell fixedly installed on the outer wall of the LED display screen body, the protective shell is in a U-shaped shape, a connecting groove for limiting is opened on the inner wall of the protective shell, a rotatable winding roller is movably installed at the top position in the protective shell cavity, a dustproof rain cloth is wound around the outer wall of the winding roller, the rain cloth movably passes through the upper inner part of the connecting groove, two groups of counterweights are fixedly installed on the bottom wall of the rain cloth, the two groups of counterweights are respectively located in the inner part of the left and right sides of the protective shell, the two groups of counterweights are adapted to the inner part of the left and right sides of the protective shell, flexible cleaning drums for dust removal are arranged on the two groups of counterweights, the flexible cleaning drums are arranged in a horizontal state, a driving mechanism for rotating them is arranged on the winding roller, and the outer wall of the flexible cleaning drum is in frictional contact with the front wall of the LED display screen body.

[0007] Preferably, connecting slide bars capable of limiting positions are fixedly installed inside the left and right sides of the main body of the LED display screen, the two sets of connecting slide bars are arranged in a vertical state, and the outer walls of the two sets of connecting slide bars are movable through the upper and lower walls of the counterweight block on the same side.

[0008] Preferably, a movable mounting frame arranged in a horizontal state is fixedly mounted on the front side wall surface of the two groups of counterweight blocks, and the front horizontal ends of the movable mounting frame are both transmission-connected to the inside of the left and right sides of the through slot.

[0009] Preferably, the flexible cleaning drum is arranged inside the movable mounting frame, a connecting rod is fixedly mounted on the left wall of the flexible cleaning drum, and an outer wall of the connecting rod is rotatably mounted on the left wall of the movable mounting frame through a bearing.

[0010] Preferably, a transmission gear capable of transmitting power is fixedly mounted on the outer wall of the connecting rotating rod, and a transmission rack capable of transmitting power is fixedly mounted on the left inner part of the protective shell.

[0011] Preferably, a rear wall surface of the transmission rack is provided with tooth grooves for transmission, and the tooth grooves of the transmission gear and the transmission rack are meshed and connected together.

[0012] Preferably, the driving mechanism comprises a driving motor, which is fixedly mounted on the right side wall of the protective shell, and the output end of the driving motor is drivingly connected to the winding roller.

[0013] Beneficial Effects

[0014] The utility model provides a dust cover for an outdoor LED display screen, which has the following beneficial effects:

[0015] (1) This is an outdoor LED display screen dust cover. During use, the utility model drives the winding roller to rotate in the forward direction through the driving mechanism, and the tarpaulin is released by the winding roller. The counterweight starts to move downward with the lower end of the tarpaulin until the counterweight is located at the bottom of the protective shell cavity. The tarpaulin will shield the main body of the LED display screen to achieve a dustproof effect. In addition, during the movement of the counterweight, the flexible cleaning drum will clean the front wall of the main body of the LED display screen to improve the cleanliness of the surface of the main body of the LED display screen.

[0016] (2) This is an outdoor LED display screen dust cover. During use, the counterweight block moves along the outer wall of the connecting slide rod, which can improve the stability of the counterweight block's movement. In addition, the counterweight block moves with the movable mounting frame. With the cooperation of the transmission gear and the transmission rack, the connecting rotating rod begins to rotate with the flexible cleaning drum. The force generated by the rotation can improve the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the three-dimensional view of the whole utility model;

[0018] Figure 2 is the sectional three-dimensional view of the protective housing of the utility model;

[0019] Figure 3 is Figure 2 the enlarged view of part A.

[0020] Legend: 1. LED display screen main body; 2. Protective housing; 3. Connecting through groove; 4. Reeling roller; 5. Rain shielding cloth; 6. Counterweight block; 7. Flexible cleaning rotating cylinder; 8. Movable mounting rack; 9. Connecting rotating rod; 10. Driving gear; 11. Driving rack; 12. Connecting slide rod; 13. Driving motor. Specific implementation mode

[0021] Embodiment 1: An outdoor LED display screen dust cover, as shown in Figure 1 , Figure 2 and Figure 3 , includes an LED display screen main body 1, a protective housing 2 is fixedly installed on the outer wall of the LED display screen main body 1, the protective housing 2 is in a rectangular shape with a hole in the middle, a connecting through groove 3 for limiting is provided on the inner wall of the protective housing 2, a reeling roller 4 that can rotate is movably installed at the top position inside the cavity of the protective housing 2, a rain shielding cloth 5 for dust prevention is wound around the outer wall of the reeling roller 4, the rain shielding cloth 5 movably passes through the upper inner part of the connecting through groove 3, two counterweight blocks 6 are fixedly installed on the bottom wall surface of the rain shielding cloth 5, the two counterweight blocks 6 are respectively located inside the left and right sides of the protective housing 2, the two counterweight blocks 6 are adapted to the inside of the left and right sides of the protective housing 2, and a flexible cleaning rotating cylinder 7 for dust removal is arranged on the two counterweight blocks 6, the flexible cleaning rotating cylinder 7 is arranged in a horizontal state, and a driving mechanism for rotating the reeling roller 4 is arranged on the reeling roller 4, and the outer wall of the flexible cleaning rotating cylinder 7 is in frictional contact with the front side wall surface of the LED display screen main body 1.

[0022] During the use of this utility model, through the driving mechanism, the reeling roller 4 rotates forward, the rain shielding cloth 5 is released by the reeling roller 4, the counterweight blocks 6 start to drive the lower end of the rain shielding cloth 5 to move downward until the counterweight blocks 6 are located at the bottom inside the cavity of the protective housing 2, and the rain shielding cloth 5 will shield the LED display screen main body 1 to achieve the dust prevention effect. In addition, during the movement of the counterweight blocks 6, the flexible cleaning rotating cylinder 7 will clean the front side wall surface of the LED display screen main body 1.

[0023] Embodiment 2: On the basis of Embodiment 1, as shown in Figure 1 , Figure 2 and Figure 3 It should be noted that there may be some inaccuracies in the translation of the geometric shape description in the original text. The original text "防护外壳2呈回字形" is translated as "the protective housing 2 is in a rectangular shape with a hole in the middle" here for the sake of understanding the context. It is recommended to check and correct according to the actual geometric shape.As shown, the left and right sides of the LED display main body 1 are fixedly installed with connecting slide bars 12 that can be limited. The two sets of connecting slide bars 12 are set in a vertical state, and the outer walls of the two sets of connecting slide bars 12 are movable and penetrate the upper and lower walls of the counterweight block 6 on the same side.

[0024] A movable mounting frame 8 arranged in a horizontal state is fixedly mounted on the front wall surface of the two groups of counterweight blocks 6 , and the front horizontal ends of the movable mounting frame 8 are both drivingly connected to the inside of the left and right sides of the through slot 3 .

[0025] The flexible cleaning drum 7 is arranged inside the movable mounting frame 8, and a connecting rod 9 is fixedly mounted on the left wall of the flexible cleaning drum 7, and the outer wall of the connecting rod 9 is rotatably mounted on the left wall of the movable mounting frame 8 through a bearing.

[0026] A transmission gear 10 for transmission is fixedly installed on the outer wall of the connecting rotating rod 9, and a transmission rack 11 for transmission is fixedly installed inside the left side of the protective shell 2.

[0027] The rear wall surface of the transmission rack 11 is provided with tooth grooves for transmission, and the tooth grooves of the transmission gear 10 and the transmission rack 11 are meshed and connected together.

[0028] The driving mechanism comprises a driving motor 13 , which is fixedly mounted on the right wall of the protective housing 2 , and an output end of the driving motor 13 is drivingly connected to the winding roller 4 .

[0029] During the use of the utility model, the counterweight block 6 will move along the outer wall of the connecting slide rod 12 when moving, which can improve the stability of the movement of the counterweight block 6. In addition, the counterweight block 6 will move with the movable mounting frame 8. With the cooperation of the transmission gear 10 and the transmission rack 11, the connecting rotating rod 9 starts to rotate with the flexible cleaning drum 7, generating a force.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A dust cover for an outdoor LED display screen, comprising an LED display screen body (1), characterized in that: A protective housing (2) is fixedly installed on the outer wall of the LED display screen main body (1). The protective housing (2) is in a rectangular shape with a connecting through groove (3) for limiting being formed on the inner wall of the protective housing (2). A retractable roller (4) that can rotate is movably installed at the top position inside the cavity of the protective housing (2). A shielding rain cloth (5) for dust prevention is wound around the outer wall of the retractable roller (4). The shielding rain cloth (5) movably passes through the upper side inside of the connecting through groove (3). Two counterweight blocks (6) are fixedly installed on the bottom wall surface of the shielding rain cloth (5). The two counterweight blocks (6) are respectively located inside the left and right sides of the protective housing (2). The two counterweight blocks (6) are adapted to the inside of the left and right sides of the protective housing (2). A flexible cleaning roller (7) for dust removal is arranged on the two counterweight blocks (6). The flexible cleaning roller (7) is arranged in a horizontal state. A driving mechanism for rotating the retractable roller (4) is arranged on the retractable roller (4). The outer wall of the flexible cleaning roller (7) is in frictional contact with the front side wall surface of the LED display screen main body (1).

2. The dust cover for an outdoor LED display screen according to claim 1, characterized in that: Connecting slide bars (12) for limiting are fixedly installed inside the left and right sides of the LED display screen main body (1). The two connecting slide bars (12) are both arranged in a vertical state. The outer walls of the two connecting slide bars (12) movably penetrate through the upper and lower wall surfaces of the same side counterweight block (6).

3. The dust cover for an outdoor LED display screen according to claim 1, characterized in that: Two movable mounting frames (8) arranged in a horizontal state are fixedly installed on the front side wall surfaces of the two counterweight blocks (6). The front horizontal ends of the movable mounting frames (8) are respectively in driving connection with the inside of the left and right sides of the connecting through groove (3).

4. The dust cover for an outdoor LED display screen according to claim 3 is characterized in that: The flexible cleaning roller (7) is arranged inside the movable mounting frame (8). A connecting rotating rod (9) is fixedly installed on the left side wall surface of the flexible cleaning roller (7). The outer wall of the connecting rotating rod (9) is rotatably installed on the left side wall surface of the movable mounting frame (8) through a bearing.

5. The dust cover for an outdoor LED display screen according to claim 4, characterized in that: A driving gear (10) for transmission is fixedly installed on the outer wall of the connecting rotating rod (9). A driving rack (11) for transmission is fixedly installed inside the left side of the protective housing (2).

6. The dust cover for an outdoor LED display screen according to claim 5, characterized in that: A tooth groove for transmission is formed on the rear side wall surface of the driving rack (11). The driving gear (10) is meshed and connected with the tooth groove of the driving rack (11).

7. The dust cover for an outdoor LED display screen according to claim 1, characterized in that: The driving mechanism includes a driving motor (13). The driving motor (13) is fixedly installed on the right side wall surface of the protective housing (2). The output end of the driving motor (13) is in driving connection with the retractable roller (4).

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