CN209746953U - Dustproof outdoor display screen - Google Patents

Abstract

the utility model relates to a dustproof outdoor display screen, including display screen, dust cover and surface ash removal device, the place ahead embedding of display screen have the dust cover, surface ash removal device is installed to the right-hand member of dust cover. The utility model discloses can solve the easy deposition in surface of current outdoor display screen, need the timely on-the-spot clearance of personnel, personnel's the risk factor of aerial operation is high, and the manual work can not clean up completely, when meetting the weather that can not carry out aerial operation, the long-term unmanned clearance in surface of outdoor display screen leads to the deposition too much, the play picture is unclear, a difficult problem such as publicity effect has been reduced, can realize carrying out dirt-proof function to outdoor display screen, need not personnel's aerial operation, the emergence of incident has been avoided, play dirt-proof effect to outdoor display screen embedding dust cover, can both carry out automatic deashing under any weather, can not reduce the publicity effect.

Description

A dustproof outdoor display screen

technical field

The invention relates to the field of outdoor display screens, in particular to a dustproof outdoor display screen.

Background technique

The outdoor display adopts super grayscale control technology, modular structure design and VLSI design technology, which greatly improves the stability, reliability and playback effect of the display system.

Since the outdoor display screen is installed outdoors, the surface of the display screen is easy to accumulate dust, which requires regular on-site cleaning by personnel. However, the existing cleaning process has the following defects: 1. The risk factor of personnel working in the air is high; 2. It cannot be completely cleaned manually ; 3. When the weather is not suitable for aerial work, the surface of the outdoor display screen has not been cleaned for a long time, resulting in too much dust accumulation, the playback picture is not clear, and the publicity effect is reduced.

There are also some explorations and practices in the maintenance of related outdoor display screens in China. The Chinese utility model patent with the patent application number of 2018203283218 discloses an outdoor LED display screen that is easy to remove surface dust. The slip ring will drive the cleaning rod on the surface of the LED display screen body. Move left and right, and at the same time, the cleaning brush will clean the dust on the surface of the LED display body during the movement; the Chinese utility model patent with the patent application number of 2016212438346 discloses a LED display screen, which solves the problem of outdoor higher and larger LED screens. The screen is not convenient for dust removal and cleaning, which is convenient and quick, saving time and effort.

However, it is still relatively rare to put a dust cover on the outside of the outdoor display screen, so it is very necessary to design a special dust cover device for the outdoor display screen.

Contents of the invention

In order to solve the above problems, the present invention provides a dust-proof outdoor display screen, which can solve the problem that the surface of the existing outdoor display screen is easy to accumulate dust, requires regular on-site cleaning by personnel, has a high risk factor for aerial work, and cannot be completely cleaned manually Clean, when encountering the weather where aerial work cannot be carried out, the surface of the outdoor display screen has been cleaned for a long time, resulting in too much dust, the playback picture is not clear, and the publicity effect is reduced. It can realize the dustproof of the outdoor display screen. Function, without the need for personnel to work in the air, avoiding the occurrence of safety accidents, and has a dust-proof effect on the outdoor display screen embedded in the dust cover, and can perform automatic dust removal in any weather, without reducing the effect of publicity.

In order to achieve the above object, the present invention adopts the following technical solutions: a dust-proof outdoor display screen, including a display screen, a dust-proof cover and a surface cleaning device, a dust-proof cover is embedded in the front of the display screen, and the dust-proof cover The right end is equipped with a surface cleaning device.

The display screen includes a playing screen, two connecting plates, two snap-in mechanisms and two card slots, two connecting plates are installed at the upper and lower ends of the playing screen, a working groove is arranged in the middle of the connecting plate, and a working groove is arranged in the middle of the connecting plate. There are threaded holes symmetrically arranged at the left and right ends, and a snap-in mechanism is installed in the working slot. Two snap-in slots are installed on the upper and lower sides of the front end of the playback screen.

The dust cover includes two tightening mechanisms, two folding waterproof cloths, a protective frame, transparent glass, a working cylinder, an internal dust cleaning mechanism, four corner cleaning mechanisms, two telescopic plates and even telescopic rods, and the tightening mechanism The front end is symmetrically equipped with a working cylinder.

The top of the working cylinder is installed on the protective frame, and the middle part of the front end of the protective frame is installed with transparent glass. A folded waterproof cloth is connected between the protective frame and the tightening mechanism. Two telescopic plates are installed on the left and right ends of the protective frame. The front end of the telescopic plate The side wall is equipped with a telescopic rod, and the top of the telescopic rod is installed on the rear side wall of the telescopic plate. The upper end of the inner wall of the protective frame is equipped with an internal cleaning mechanism, and the front end of the protective frame is evenly equipped with four corner cleaning mechanisms. .

During specific work, two tightening mechanisms embed the upper and lower ends of the display screen. When dust is attached to the inside of the dust cover, the working cylinder pushes the protective frame forward, and the internal dust cleaning mechanism cleans the inner wall of the transparent glass. The corner cleaning mechanism cleans the four dead corners on the outer surface of the transparent glass. Two folded waterproof cloths and two telescopic plates form a relatively sealed space for the playback screen to prevent a large amount of dust from entering and affecting people's viewing.

The surface dust cleaning device includes a fixed plate, a fixed electric slider, a moving frame, a support frame, a sliding ring, a middle cleaning roller and two adjustment cleaning rollers. The fixed plate is symmetrically installed on the protective frame, and a fixed Electric slider, the fixed electric slider is equipped with a moving frame, a supporting frame is installed between the moving frames, a sliding ring is installed in the middle of the supporting frame, the sliding ring is set on the middle outer wall of the middle cleaning roller, and the upper and lower parts of the middle cleaning roller There are two adjustable cleaning rollers installed at both ends, and the outer end of the adjustable cleaning roller is installed on the support frame. During specific work, the surface cleaning device drives the middle cleaning roller and the two adjusting cleaning rollers to clean the outer surface of the transparent glass for the first time. During the cleaning process, the two adjustment cleaning rollers are adjusted to shrink to avoid the collision between the adjustment cleaning rollers and the edge cleaning mechanism. The surface cleaning device cleans the outer surface of the transparent glass for the first time, and the personnel do not need to work at heights to clean up, ensuring the safety of personnel, and Automatic dust cleaning can be carried out in any weather to ensure the clarity of the playback screen and will not reduce the effect of publicity.

Further, the tightening mechanism includes a connecting frame, a block, a matching telescopic rod, a connecting plate, a twisting motor, a threaded rod and a clamping plate, the lower side of the rear end of the connecting frame is equipped with a block, and the upper end of the connecting frame is symmetrically installed with matching The telescopic rod is installed on the connecting plate with the top of the telescopic rod. A screw motor is installed on the connecting plate. A threaded rod is installed on the output shaft of the screw motor. The threaded rod is connected with the connecting frame through a thread transmission mode. The middle part is equipped with clamping plates, and the clamping plates are uniformly provided with access slots. During specific work, the two clamping plates on the two tightening mechanisms snap into the working slots, and the top frame on the snap-in mechanism snaps into the access slots to limit the position. , after that, the card block is inserted into the card slot, the screw motor drives the threaded rod to screw into the threaded hole for secondary limit, the screwing mechanism drives the dust cover and the display screen to be embedded tightly, reducing the possibility of dust entering, and effectively To the role of dust.

Further, the internal dust cleaning mechanism includes connecting electric sliders, fixed frames, wiping cloths, working electric sliders, U-shaped moving frames, motors, cams, corresponding rods, two sliding columns, springs, reciprocating cleaning Cloth, connected to the electric slider is symmetrically installed in the protective frame, a fixed frame is installed on the connected electric slider, and a wiping cloth is installed on the front end of the fixed frame.

The upper end of the fixed frame is equipped with a working electric slider, and a U-shaped moving frame is installed on the working electric sliding block. A connecting motor is installed on the U-shaped moving frame, and a cam is installed on the output shaft of the connecting motor. The side wall of the U-shaped moving frame Two sliding columns are installed on the top, and the sliding columns are connected with the reciprocating dust cleaning cloth through a sliding fit, and a connecting spring is connected between the reciprocating dust cleaning cloth and the U-shaped moving frame, and a corresponding rod is installed at the lower end of the reciprocating dust cleaning cloth.

When working specifically, connect the electric slider to drive the wiping cloth to wipe the inner surface of the transparent glass up and down in a large range. When the cam rotates, the cam drives the reciprocating dust-cleaning cloth to move sideways. When the cam is far away from the reciprocating dust-cleaning cloth, the reciprocating dust-cleaning cloth moves left and right under the action of the spring, and the moving reciprocating dust-cleaning cloth repeatedly Wipe, the internal cleaning mechanism repeatedly cleans the inner surface of the transparent glass.

Further, the corner cleaning mechanism includes a working frame, a reciprocating cylinder, a rack plate, an arc gear and a reciprocating cleaning brush. The reciprocating cleaning brush is installed on the protective frame through a pin shaft, and a working frame is installed on the outer wall of the protective frame. A reciprocating cylinder is installed on the frame, the top of the reciprocating cylinder is installed on the rack plate, the outer end of the protective frame is installed on the arc gear, and the arc gear is meshed with the rack plate. When cleaning the dead angle during specific work, The rack plate drives the arc gear to reciprocate, the arc gear drives the reciprocating cleaning brush to clean the dead corners of the transparent glass, and the corner cleaning mechanism cleans the dead corners of the transparent glass in detail.

Further, the adjustment cleaning roller includes a connection cylinder, an extrusion plate, an extrusion block and an arc surface cleaning plate, the connection cylinder is installed on the support frame, the top end of the connection cylinder is installed on the extrusion plate, and the extrusion plate is evenly installed There is an extrusion block, and the middle cleaning roller is connected with the arc surface cleaning plate through a sliding fit. The inner end of the arc surface cleaning plate is provided with an extrusion groove, and the extrusion block is located in the extrusion groove. The position of the cleaning mechanism is connected to the cylinder to drive the extrusion block to move left and right, and the extrusion block drives the curved surface cleaning plate to expand and contract through extrusion to avoid collision with the corner cleaning mechanism.

Further, the snap-in mechanism includes a top cylinder and a top frame, the top cylinder is installed on the working groove, the top of the top cylinder is mounted on the top frame, the top frame is a T-shaped structure, and the top frame snaps into the entry and exit groove to prevent dust. The cover is limited.

Further, the card slot is a V-shaped structure, and the card slot is composed of a flexible rubber material, the card board is a V-shaped structure, the card board is composed of a flexible rubber material, and the structure between the card slot and the card board is corresponding. When the cover needs to be embedded with the display screen, the clamping plate is clamped into the clamping groove, and the clamping plate and the clamping groove are V-shaped structures to ensure that when it rains, the rainwater can be discharged from both sides to avoid entering the dustproof cover.

When the dust cover is embedded in the front end of the display screen: two tightening mechanisms are used to embed the upper and lower ends of the display screen, the two clamping plates on the two tightening mechanisms are snapped into the working groove, and the top frame on the snap-in mechanism snaps in and out The position is limited in the slot, and then the block is inserted into the slot, and the screw motor drives the threaded rod to be screwed into the threaded hole for secondary limit. Two folded waterproof cloths and two telescopic plates form a relatively sealed space for the playback screen. space, to avoid a large amount of dust from entering and affecting people's viewing;

When cleaning the inner surface of the transparent glass: the working cylinder pushes the protective frame forward, the internal dust cleaning mechanism cleans the inner wall of the transparent glass, and connects the electric slider to drive the wiping cloth to wipe the inner surface of the transparent glass up and down in a large range. When it is difficult to clean, the internal dust cleaning mechanism drives the U-shaped moving frame to move to this position, and the motor drives the cam to rotate, and the cam drives the reciprocating dust cleaning cloth to move to one side. When the cam is far away from the reciprocating dust cleaning cloth, the reciprocating dust cleaning cloth The effect of the spring is to reciprocate left and right, and the reciprocating dust cleaning cloth in the movement repeatedly wipes the difficult-to-clean positions;

When cleaning the outer surface of transparent glass: the surface cleaning device works, and the surface cleaning device drives the middle cleaning roller and the two adjusting cleaning rollers to clean the outer surface of the transparent glass for the first time. During the cleaning process, the two adjusting cleaning rollers expand and contract Adjustment to avoid collision between the adjustment cleaning roller and the corner cleaning mechanism. The surface cleaning device cleans the outer surface of the transparent glass for the first time, and then the four corner cleaning mechanisms clean the four dead corners on the outer surface of the transparent glass. The rack plate drives the arc gear to reciprocate, and the arc gear drives the reciprocating cleaning brush to clean the dead corners of the transparent glass until the outer surface of the transparent glass is cleaned.

The beneficial effects of the present invention are:

1. The present invention can solve the problem that the surface of the existing outdoor display screen is easy to accumulate dust, which requires regular on-site cleaning by personnel. The risk factor of personnel aerial work is high, and manual work cannot be completely cleaned. When encountering weather where aerial work cannot be performed, The surface of the outdoor display screen has not been cleaned for a long time, resulting in excessive dust accumulation, unclear playback pictures, and reduced publicity effects. It can realize the dustproof function of the outdoor display screen, without the need for personnel to work in the air, and avoids the occurrence of safety accidents. , It plays a dust-proof role for the outdoor display screen embedded in the dust cover, and can perform automatic dust removal in any weather without reducing the publicity effect;

2. The present invention is provided with a display screen, the display screen plays pictures, and plays the work of auxiliary dust cover embedding;

3. The present invention is equipped with a dust cover, which plays a dust-proof role for the outdoor display screen, cleans the dust attached to the transparent glass, and cleans the four dead corners on the outer surface of the transparent glass, and the cleaning is complete;

4. The present invention is equipped with a surface dust removal device, which can clean the dust on the outer surface of the transparent glass in a large range, without the need for personnel to work in the air, avoiding the occurrence of safety accidents, and can perform automatic dust removal in any weather , to ensure the clarity of the playback screen, and will not reduce the effect of publicity.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a first structural schematic view between the display screen and the dust cover of the present invention;

Fig. 3 is a second structural schematic view between the display screen and the dust cover of the present invention;

Fig. 4 is the structural representation of surface cleaning device of the present invention;

Fig. 5 is the partial enlarged view of X direction of Fig. 3 of the present invention;

Fig. 6 is a partial enlarged view in the Y direction of Fig. 3 of the present invention.

Detailed ways

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

As shown in Figures 1 to 6, a dust-proof outdoor display screen includes a display screen 1, a dust-proof cover 2 and a surface cleaning device 3. The front of the display screen 1 is embedded with a dust-proof cover 2, and the dust The right end of the cover 2 is equipped with a surface cleaning device 3 .

Described display screen 1 comprises playing screen 11, two connecting plates 12, two snap-in mechanisms 13 and two draw-in slots 14, two connecting plates 12 are installed on the upper and lower ends of playing screen 11, the middle part of connecting plate 12 A working groove is provided, and the left and right ends of the connecting plate 12 are symmetrically provided with threaded holes, a snap-in mechanism 13 is installed in the working groove, and two draw-in grooves 14 are installed on the upper and lower sides of the playing screen 11 front end, and the display screen 1 plays the picture, And play the work of auxiliary dust cover 2 embedding.

The dust cover 2 includes two tightening mechanisms 21, two folding waterproof cloths 22, a protective frame 23, transparent glass 24, a working cylinder 25, an internal dust cleaning mechanism 26, four corner cleaning mechanisms 27, two telescopic Plate 28 connects telescopic rod 29, and the front end of tightening mechanism 21 is equipped with working cylinder 25 symmetrically.

The top of working cylinder 25 is installed on the protective frame 23, and the front end middle part of protective frame 23 is equipped with transparent glass 24, is connected with folding tarpaulin 22 between protective frame 23 and tightening mechanism 21, and the left and right ends of protective frame 23 are equipped with two A telescopic plate 28, the front end side wall of the telescopic plate 28 is equipped with a connecting telescopic rod 29, and the top of the connecting telescopic rod 29 is installed on the rear end side wall of the telescopic plate 28, and an internal cleaning mechanism 26 is installed on the inner wall upper end of the protective frame 23 , Four corner cleaning mechanisms 27 are evenly installed on the front end of the protective frame 23 .

During specific work, two tightening mechanisms 21 are embedded in the upper and lower ends of the display screen 1. When dust is attached to the inside of the dust cover 2, the working cylinder 25 pushes the protective frame 23 forward, and the internal dust cleaning mechanism 26 pairs the transparent glass 24. The inner wall is cleaned, and the four corner cleaning mechanisms 27 are aimed at cleaning the four dead corners of the outer surface of the transparent glass 24. Two folded waterproof cloths 22 and two telescopic plates 28 form a relatively sealed space for the playing screen 11 to avoid A large amount of dust entered and affected people watching.

The surface cleaning device 3 includes a fixed plate 31, a fixed electric slider 32, a moving frame 33, a support frame 34, a sliding ring 35, a middle cleaning roller 36 and two adjustment cleaning rollers 37, and the fixed plate 31 is symmetrically installed on the protective surface. On the frame 23, a fixed electric slide block 32 is installed on the fixed plate 31, a mobile frame 33 is arranged on the fixed electric slide block 32, a support frame 34 is installed between the mobile frame 33, and a slide ring 35 is installed in the middle part of the support frame 34, Sliding ring 35 is set on the middle part outer wall of middle part cleaning roller 36, and the upper and lower ends of middle part cleaning roller 36 are equipped with two adjustment cleaning rollers 37, and the outer end of adjustment cleaning roller 37 is installed on the support frame 34, during concrete work, The surface cleaning device 3 drives the middle cleaning roller 36 and the two adjusting cleaning rollers 37 to clean the outer surface of the transparent glass 24 for the first time. When the mechanism 27 collides, the surface dust cleaning device 3 cleans the outer surface of the transparent glass 24 for the first time, and personnel do not need to work at heights to clean up, which ensures the safety of personnel, and can perform automatic dust removal in any weather to ensure the clarity of the playback picture , without reducing the effectiveness of the promotion.

Described tightening mechanism 21 comprises connecting frame 211, clamping block 212, cooperate telescoping rod 213, connecting plate 214, screwing motor 215, threaded rod 216 and clamping plate 217, the rear end lower side of connecting frame 211 is equipped with clamping block 212, The upper end of the connecting frame 211 is symmetrically equipped with a telescopic rod 213, and the top end of the telescopic rod 213 is installed on the connecting plate 214, the connecting plate 214 is equipped with a twisting motor 215, and the output shaft of the screwing motor 215 is equipped with a threaded rod 216, and the screw thread Rod 216 links to each other with connecting frame 211 through the transmission mode of screw thread, and clamping plate 217 is installed in the rear end middle part of connecting frame 211, and the clamping plate 217 is evenly provided with in and out slots, and during specific work, two clamps on the two tightening mechanisms 21 The plate 217 is snapped into the working groove, and the top frame 132 on the snap-in mechanism 13 is snapped into the entry and exit slot to limit the position. Afterwards, the block 212 is snapped into the slot 14, and the screw motor 215 drives the threaded rod 216 to be screwed into the threaded hole. The second limit is performed, and the tightening mechanism 21 drives the dust cover 2 to be closely embedded with the display screen 1, which reduces the possibility of dust entering and plays a role of dust prevention.

The internal cleaning mechanism 26 includes connecting electric slider 261, fixed frame 263, wiping cloth 264, working electric slider 2712, U-shaped moving frame 265, connecting motor 266, cam 267, corresponding rod 268, two sliding columns 269, even spring 270, reciprocating dust cleaning cloth 2711, connect electric slide block 261 symmetrically to be installed in protective frame 23, connect fixed mount 263 on electric slide block 261, wiper cloth 264 is installed on the front end of fixed mount 263.

The upper end of fixed mount 263 is equipped with working electric slide block 2712, and U-type moving frame 265 is installed on the working electric sliding block 2712, and connecting motor 266 is installed on the U-shaped moving frame 265, and cam 267 is installed on the output shaft of connecting motor 266 Two sliding columns 269 are installed on the side wall of the U-shaped moving frame 265, and the sliding columns 269 are connected with the reciprocating dust-cleaning cloth 2711 through a sliding fit, and there is a connection between the reciprocating dust-cleaning cloth 2711 and the U-shaped moving frame 265. The spring 270 and the lower end of the reciprocating cleaning cloth 2711 are equipped with corresponding rods 268 .

During concrete work, connect electric slide block 261 and drive wiping cloth 264 and carry out large-scale up and down wiping to transparent glass 24 inner surface, when transparent glass 24 has a place that is more difficult to clean, internal cleaning mechanism 26 drives U-type moving frame 265 to move to At this position, the motor 266 drives the cam 267 to rotate, and the cam 267 drives the reciprocating dust removal cloth 2711 to move to one side. The reciprocating cleaning cloth 2711 in motion repeatedly wipes the positions that are difficult to clean, and the internal cleaning mechanism 26 repeatedly cleans the inner surface of the transparent glass 24 .

Described corner cleaning mechanism 27 comprises working frame 271, reciprocating cylinder 272, rack plate 273, arc gear 274 and reciprocating cleaning brush 275, and reciprocating cleaning brush 275 is installed on the protective frame 23 by bearing pin, and protective frame 23 outer walls A work frame 271 is installed on the work frame 271, and a reciprocating cylinder 272 is installed on the work frame 271. The top of the reciprocating cylinder 272 is installed on the rack plate 273, and the outer end of the protective frame 23 is installed on the arc gear 274. The arc gear 274 and the tooth The strips 273 are engaged with each other. During specific work, when cleaning dead corners, the rack plate 273 drives the arc gear 274 to reciprocate, and the arc gear 274 drives the reciprocating cleaning brush 275 to clean the dead corners of the transparent glass 24, and the corner cleaning mechanism 27 Carry out detailed cleaning to transparent glass 24 blind angles.

The adjustment cleaning roller 37 includes a connecting cylinder 371, an extruding plate 372, an extruding block 373 and an arc surface cleaning plate 374, the connecting cylinder 371 is installed on the support frame 34, and the top of the connecting cylinder 371 is installed on the extruding plate 372 , Extrusion blocks 373 are evenly installed on the extrusion plate 372, and the middle cleaning roller 36 is connected with the arc surface cleaning plate 374 through a sliding fit, and the inner end of the arc surface cleaning plate 374 is provided with an extrusion groove, and the extrusion block 373 Located in the extrusion groove, during specific work, according to the position of the corner cleaning mechanism 27, the connecting cylinder 371 drives the extrusion block 373 to move left and right, and the extrusion block 373 drives the curved surface cleaning plate 374 to expand and contract through extrusion, avoiding Collide with the edge cleaning mechanism 27.

The snap-in mechanism 13 includes a top cylinder 131 and a top frame 132. The top cylinder 131 is installed on the working groove, and the top of the top cylinder 131 is installed on the top frame 132. The top frame 132 is a T-shaped structure, and the top frame 132 snaps into the The dust cover 2 is limited in the access slot.

The slot 14 is a V-shaped structure, and the slot 14 is made of a flexible rubber material, the clamp plate 217 is a V-shaped structure, the clamp plate 217 is made of a flexible rubber material, and the structure between the slot 14 and the clamp plate 217 is corresponding , when the dust cover 2 needs to be embedded with the display screen 1, the clamping plate 217 is clamped into the clamping groove 14, and the clamping plate 217 and the clamping groove 14 are V-shaped structures to ensure that when it rains, the rainwater can be discharged from both sides to avoid into the dust cover 2.

When the dust cover 2 is embedded in the front end of the display screen 1: two tightening mechanisms 21 embed the upper and lower ends of the display screen 1, and the two clamping plates 217 on the two tightening mechanisms 21 are snapped into the working groove, and the snap-in mechanism 13 The top frame 132 on the top is snapped into the entry and exit slot to limit the position. Afterwards, the block 212 is snapped into the slot 14, and the screw motor 215 drives the threaded rod 216 to be screwed into the threaded hole to perform the secondary limit. The two folded waterproof cloths 22 Form a relatively sealed space with the two telescopic plates 28 on the playback screen 11, avoiding a large amount of dust from entering and affecting people's viewing;

When cleaning the inner surface of the transparent glass 24: the working cylinder 25 pushes the protective frame 23 forward, and the internal dust cleaning mechanism 26 cleans the inner wall of the transparent glass 24, and connects the electric slider 261 to drive the wiping cloth 264 to clean the inner surface of the transparent glass 24 in a large range. Wipe up and down, when there is a place on the transparent glass 24 that is difficult to clean, the internal dust removal mechanism 26 drives the U-shaped moving frame 265 to move to this position, and the motor 266 drives the cam 267 to rotate, and the cam 267 drives the reciprocating dust removal cloth 2711 to move to one side , when the cam 267 is away from the reciprocating dust removal cloth 2711, the reciprocating dust removal cloth 2711 moves back and forth under the action of the spring 270, and the reciprocating dust removal cloth 2711 in motion repeatedly wipes the difficult cleaning position;

When the outer surface of the transparent glass 24 is cleaned: the surface dust removal device 3 works, and the surface dust removal device 3 drives the middle cleaning roller 36 and two adjustment cleaning rollers 37 to clean the outer surface of the transparent glass 24 for the first time. Cleaning roller 37 carries out expansion and contraction regulation, avoids adjusting cleaning roller 37 and corner cleaning mechanism 27 to collide, surface cleaning device 3 cleans the outer surface of transparent glass 24 for the first time, after that, four corner cleaning mechanisms 27 pair transparent The four dead corners on the outer surface of the glass 24 are cleaned, the rack plate 273 drives the arc gear 274 to reciprocate, and the arc gear 274 drives the reciprocating cleaning brush 275 to clean the dead corners of the transparent glass 24 until the outer surface of the transparent glass 24 is cleaned up .

To sum up, the workflow described above realizes the function of dust-proofing the outdoor display screen, and solves the problem that the surface of the existing outdoor display screen is easy to accumulate dust and requires regular on-site cleaning by personnel. The risk factor of personnel working in the air is high and manual It cannot be completely cleaned. When the weather is not suitable for aerial work, the surface of the outdoor display screen has not been cleaned for a long time, resulting in excessive dust accumulation, unclear playback pictures, and reduced publicity effects. The goal has been achieved.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (7)

1. A dust-proof outdoor display screen, comprising a display screen (1), a dust cover (2) and a surface cleaning device (3), characterized in that: the front of the display screen (1) is embedded with a dust-proof Cover (2), the right end of dust cover (2) is equipped with surface cleaning device (3); The display screen (1) includes a playback screen (11), two connecting plates (12), two snap-in mechanisms (13) and two card slots (14), and the upper and lower ends of the playback screen (11) are installed There are two connecting plates (12), the middle part of the connecting plate (12) is provided with a working groove, the left and right ends of the connecting plate (12) are symmetrically provided with threaded holes, and a snap-in mechanism (13) is installed in the working groove, and the playing screen (11) Two card slots (14) are installed on the upper and lower sides of the front end; The dust cover (2) includes two tightening mechanisms (21), two folded waterproof cloths (22), a protective frame (23), transparent glass (24), a working cylinder (25), and an internal cleaning mechanism ( 26), four corner cleaning mechanisms (27), two telescopic plates (28) and even telescopic rods (29), the front end of the tightening mechanism (21) is symmetrically equipped with a working cylinder (25); The top of the working cylinder (25) is installed on the protective frame (23), the front end middle part of the protective frame (23) is equipped with transparent glass (24), and a folded waterproof cloth is connected between the protective frame (23) and the tightening mechanism (21). (22), the left and right ends of the protective frame (23) are equipped with two telescopic plates (28), and the front side wall of the telescopic plate (28) is equipped with a connecting telescopic rod (29), and the top of the connecting telescopic rod (29) is installed On the rear end side wall of telescoping plate (28), internal cleaning mechanism (26) is installed on the inwall upper end of protective frame (23), and four corner cleaning mechanisms (27) are evenly installed on the front end of protective frame (23). ); The surface cleaning device (3) includes a fixed plate (31), a fixed electric slider (32), a moving frame (33), a support frame (34), a slip ring (35), a middle cleaning roller (36) and Two adjustment cleaning rollers (37), the fixed plate (31) is symmetrically installed on the protective frame (23), the fixed electric slide block (32) is installed on the fixed plate (31), and the fixed electric slide block (32) is provided with Mobile frame (33), support frame (34) is installed between the mobile frame (33), the middle part of support frame (34) is equipped with slip ring (35), and slip ring (35) is sleeved on middle part cleaning roller (36) On the middle part outer wall, the upper and lower ends of the middle cleaning roller (36) are equipped with two adjustment cleaning rollers (37), and the outer ends of the adjustment cleaning rollers (37) are installed on the support frame (34). 2. A dust-proof outdoor display screen according to claim 1, characterized in that: the tightening mechanism (21) includes a connecting frame (211), a block (212), a matching telescopic rod (213), a connecting plate (214), twisting motor (215), threaded rod (216) and clamping plate (217), the rear end lower side of the connecting frame (211) is equipped with a block (212), and the upper end of the connecting frame (211) is installed symmetrically Cooperate telescopic link (213), the top of coordinating telescopic link (213) is installed on the connecting plate (214), and screwing motor (215) is installed on connecting plate (214), is installed on the output shaft of screwing motor (215) Threaded rod (216), threaded rod (216) links to each other with connecting frame (211) by the transmission mode of screw thread, and the rear end middle part of connecting frame (211) is equipped with clamping plate (217), is evenly provided with on clamping plate (217). In and out of the slot. 3. A dust-proof outdoor display screen according to claim 1, characterized in that: the internal dust cleaning mechanism (26) includes a motorized slider (261), a fixing frame (263), a wiping cloth (264) ), working electric slider (2712), U-shaped moving frame (265), motor (266), cam (267), corresponding rod (268), two sliding columns (269), spring (270), reciprocating The dust cleaning cloth (2711) is symmetrically installed in the protective frame (23) by connecting the electric slider (261), and the fixed frame (263) is installed on the connected electric slider (261), and the front end of the fixed frame (263) is equipped with a wiping cloth(264); The upper end of fixed mount (263) is equipped with working electric slide block (2712), and U-shaped moving frame (265) is installed on the working electric sliding block (2712), and connecting motor (266) is installed on the U-shaped moving frame (265). , a cam (267) is installed on the output shaft of the motor (266), and two sliding columns (269) are installed on the side wall of the U-shaped frame (265), and the sliding columns (269) are matched with the reciprocating The dust removal cloth (2711) links to each other, is connected with connecting spring (270) between the reciprocating dust removal cloth (2711) and the U-shaped moving frame (265), and the lower end of the reciprocating dust removal cloth (2711) is equipped with a corresponding bar (268). 4. A dust-proof outdoor display screen according to claim 1, characterized in that: the corner cleaning mechanism (27) includes a working frame (271), a reciprocating cylinder (272), a rack plate (273) , arc gear (274) and reciprocating cleaning brush (275), reciprocating cleaning brush (275) is installed on the protective frame (23) by bearing pin, and work frame (271) is installed on the protective frame (23) outer wall, and work frame (271) is equipped with a reciprocating cylinder (272), the top of the reciprocating cylinder (272) is installed on the rack plate (273), the outer end of the protective frame (23) is installed on the arc gear (274), and the arc gear (274) meshes with the rack plate (273). 5. A dust-proof outdoor display screen according to claim 1, characterized in that: the adjustment cleaning roller (37) includes a connecting cylinder (371), a pressing plate (372), a pressing block (373) With the arc surface cleaning plate (374), the connecting cylinder (371) is installed on the support frame (34), and the top of the connecting cylinder (371) is installed on the extruding plate (372), and the extruding plate (372) is evenly installed with The extruding block (373), the middle cleaning roller (36) is connected with the arc surface cleaning plate (374) by a sliding fit, and the inner end of the arc surface cleaning plate (374) is provided with an extruding groove, and the extruding block (373 ) is located in the extrusion groove. 6. A dust-proof outdoor display screen according to claim 1, characterized in that: the snap-in mechanism (13) includes a top cylinder (131) and a top frame (132), and the top cylinder (131) is installed on On the working groove, the top of the top cylinder (131) is installed on the top frame (132), and the top frame (132) is a T-shaped structure. 7. A dust-proof outdoor display screen according to claim 1, characterized in that: the card slot (14) is a V-shaped structure, and the card slot (14) is made of flexible rubber material, and the card plate (217 ) is a V-shaped structure, the clamping plate (217) is made up of flexible rubber material, and the structure is corresponding between the draw-in groove (14) and the clamping plate (217).