Double-screen information advertising machine

Abstract

The present application relates to the technical field of advertising machines, in particular to a double-screen information advertising machine, which comprises a mounting frame, a cabinet is arranged on the top of the mounting frame, the cabinet is divided into a screen cavity and a mounting cavity, tempered glass is arranged on the front and back sidewalls of the cabinet, two display screens are symmetrically arranged in the screen cavity; mounting plates are slidably arranged on the outer surfaces of the two tempered glasses, lifting mechanisms for driving the mounting plates to lift are arranged in the two mounting cavities, and driving mechanisms are further arranged on the lifting mechanisms; rubber wipers, water spraying pipes and cleaning brushes are arranged on the side of the mounting plates close to the cabinet, a plurality of water spraying nozzles are equidistantly arranged on the water spraying pipes along the length direction of the water spraying pipes, water supply assemblies are connected to the water spraying pipes, the lifting mechanisms drive the mounting plates to lift, and then drive the rubber wipers, the cleaning brushes and the water spraying nozzles to move up and down, the cleaning brushes are used for brushing, the water spraying nozzles are used for cleaning, and the water marks left by the rubber wipers are wiped, so that the outer surfaces of the tempered glasses are cleaned.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of advertising machines, in particular to a double-screen information advertising machine. BACKGROUND

[0002] The advertising machine is a new generation of intelligent device, which forms a complete advertising broadcast system through terminal software control, network information transmission and multimedia terminal display, and carries out advertising through multimedia materials such as pictures, texts, videos, small plug-ins (weather, exchange rate, etc.). The original idea of the advertising machine is to change passive advertising to active advertising, so the interactivity of the advertising machine makes it have many public service functions, thereby attracting customers to actively browse the advertisement. The mission of the advertising machine at the beginning is to change the passive mode of advertising transmission, and to attract customers to actively browse the advertisement through the interactive mode.

[0003] In the prior art, the screen of the outdoor advertising machine is easy to adhere to a large amount of dust during a long time of use, which affects the display effect of the advertising information. In order to clean the dust, the staff needs to manually clean the screen of the advertising machine regularly, which not only increases the workload, but also increases the labor and material resources. SUMMARY

[0004] The purpose of the present application is to provide a double-screen information advertising machine, which solves the problem that the outdoor advertising machine in the prior art cannot clean the dust adhered to the screen, affecting the display effect of the advertising information.

[0005] To solve the above technical problems, the present application adopts the following technical scheme:

[0006] A double-screen information advertising machine comprises a mounting frame, a machine box is arranged at the top of the mounting frame, the inside of the machine box is divided into a screen cavity and two mounting cavities located on the left and right sides of the screen cavity by two vertical plates, tempered glass is inlaid in the middle of the front and rear side walls of the machine box and is connected with the inside of the screen cavity, two display screens are symmetrically arranged in the screen cavity in a back-to-back manner and face the two tempered glasses respectively, a mounting plate is slidably arranged on the outer surface of each tempered glass in a horizontal manner, a lifting mechanism for driving the mounting plate to lift is arranged in each mounting cavity, and a driving mechanism for driving the mounting plate to move horizontally is further arranged on the lifting mechanism; a rubber wiper, a water spraying pipe and a cleaning brush are arranged on the side of the mounting plate close to the machine box in a horizontal manner from top to bottom, a plurality of water spraying nozzles are arranged on the water spraying pipe at equal intervals along the length direction of the water spraying pipe and are connected with the water spraying pipe, and a water supply assembly is connected with the water spraying pipe.

[0007] Further technical solutions are that vertical strip-shaped grooves are formed in the left and right ends of the front and rear sidewalls of the cabinet and are connected with the installation cavities; the lifting mechanism comprises a driving block, a reciprocating screw rod is vertically arranged in each installation cavity, a synchronous motor is arranged on the bottom side of the cabinet, the output shaft of the synchronous motor penetrates the bottom side of the cabinet and is in transmission connection with the reciprocating screw rod, and the driving block is in threaded connection with the reciprocating screw rod; a telescopic rod is horizontally arranged on the front and rear sidewalls of the driving block, and one end of the telescopic rod penetrates the strip-shaped groove and is connected with the mounting plate.

[0008] Further technical solutions are that the telescopic rod comprises a sleeve and a supporting rod, a circular center groove is arranged on the sleeve, one end of the supporting rod is connected with the mounting plate, the other end of the supporting rod is inserted into the circular center groove, and the end of the sleeve away from the supporting rod is connected with the driving block; a tension spring is arranged in the circular center groove, one end of the tension spring is connected with the supporting rod, and the other end of the tension spring is fixedly connected with the groove bottom of the circular center groove; when the driving mechanism drives the mounting plate to move horizontally so that the rubber wiper and the cleaning brush are in contact with the outer surface of the tempered glass, the supporting rod is completely arranged in the circular center groove.

[0009] Further technical solutions are that the driving mechanism comprises a sliding block, the height of the sliding block is higher than the height of the driving block, a sliding groove penetrating the upper and lower sides of the driving block is vertically formed in the end of the driving block away from the screen cavity, the sliding block is in sliding connection with the driving block through the sliding groove, two movable rods are rotatably connected to the bottom of the side of the sliding block away from the driving block through fixing pins, the ends of the two movable rods away from the fixing pins penetrate the strip-shaped grooves and are rotatably connected with the end portions of the mounting plate through connecting pins, and the length of the movable rod is longer than the length of the sleeve; the sliding block is provided with a limiting component for stopping the sliding block from sliding along the sliding groove.

[0010] Further technical solutions are that a groove is formed in the groove bottom of the sliding groove; the limiting component comprises an upper protruding block and a lower protruding block, an upper mounting groove and a lower mounting groove are formed in the side of the sliding block close to the screen cavity, supporting springs are arranged in the upper mounting groove and the lower mounting groove, one end of each of the two supporting springs is connected with the groove bottom of the upper mounting groove and the lower mounting groove, the other end of each of the two supporting springs is connected with one end of the upper protruding block and the lower protruding block, and the other ends of the upper protruding block and the lower protruding block penetrate the groove openings of the upper mounting groove and the lower mounting groove; when the bottom of the sliding block is flush with the bottom of the driving block, the end of the lower protruding block away from the supporting spring is arranged in the groove, and when the top of the sliding block is flush with the top of the driving block, the end of the upper protruding block away from the supporting spring is arranged in the groove.

[0011] Further technical solutions are that the water supply component comprises a water supply tank and a telescopic pipe, the water supply tank is arranged at the bottom of the mounting frame, a water pump is arranged in the water supply tank, one end of the telescopic pipe penetrates the sidewall of the water supply tank and is in communication with the water outlet end of the water pump, and the other end of the telescopic pipe is in communication with the water spraying pipe through a water distribution pipe.

[0012] Further technical solutions are that the front and rear sidewalls of the mounting frame are both provided with air inlets connected with the interiors thereof, the bottom and top of the cabinet are respectively provided with air vents and air outlets connected with the screen cavity, the bottom side of the cabinet opposite to the air vent is provided with a cross-flow fan, and the top of the cabinet is provided with a top cover through a support frame.

[0013] Further technical solutions are that the air inlets and air outlets are both provided with dustproof screens.

[0014] Compared with the prior art, the present application has the following beneficial effects: 1. By setting the lifting mechanism, rubber wiper, cleaning brush and water nozzle, the lifting mechanism can drive the mounting plate to move up and down, thereby driving the rubber wiper, cleaning brush and water nozzle to move up and down. When the lifting mechanism drives the rubber wiper, cleaning brush and water nozzle to move upwards, the water nozzle sprays cleaning liquid to wash the dust adhered to the outer surface of the tempered glass, and also plays a moistening role. When the lifting mechanism drives the rubber wiper, cleaning brush and water nozzle to move downwards, the cleaning brush first brushes the outer surface of the tempered glass, the cleaning liquid sprayed by the water nozzle washes the dirt brushed off by the cleaning brush, and the rubber wiper is attached to the surface of the tempered glass to scrape the water marks left after the water nozzle is washed and cleaned, thereby avoiding the case that water marks are left on the surface of the tempered glass after cleaning, so that the outer surface of the tempered glass is cleaned.

[0015] 2. By setting the driving mechanism, the driving mechanism can drive the mounting plate to move horizontally, thereby driving the rubber wiper, cleaning brush and water nozzle to move away from or close to the tempered glass, so that when the lifting mechanism drives the rubber wiper, cleaning brush and water nozzle to move upwards, the rubber wiper does not come into contact with the outer surface of the tempered glass, preventing the rubber wiper from directly contacting with dry dust during the upward movement, thereby preventing the dust on the tempered glass from being rubbed to scratch the outer surface of the tempered glass, affecting the display effect of the display screen through the tempered glass in the subsequent process. When the lifting mechanism drives the rubber wiper, cleaning brush and water nozzle to move downwards, it is ensured that the rubber wiper and the cleaning brush come into contact with the outer surface of the tempered glass, so that the cleaning brush first brushes the outer surface of the tempered glass, the cleaning liquid sprayed by the water nozzle washes the dirt brushed off by the cleaning brush, and the rubber wiper is attached to the surface of the tempered glass to scrape the water marks left after the water nozzle is washed and cleaned.

[0016] 3. By setting the tempered glass, the display content of the display screen arranged in the screen cavity can be viewed through the tempered glass, avoiding the direct exposure of the surface of the display screen to the outside world, avoiding the damage of the outside environment to the display screen, thereby better protecting the display screen and improving the service life of the product. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a double-screen information advertising machine.

[0018] Figure 2 A schematic view of a sectional structure of a double-screen information advertising machine according to the present application.

[0019] Figure 3 A schematic view of a lifting assembly, a driving assembly and a mounting plate structure according to the present application.

[0020] Figure 4 A sectional view of a state that the bottom of the driving block and the bottom of the sliding block are in contact with the bottom wall of the mounting cavity.

[0021] Figure 5 A sectional view of a state that the top of the driving block and the top of the sliding block are in contact with the top wall of the mounting cavity.

[0022] Figure 6 A schematic view of a mounting plate, a rubber wiper, a cleaning brush and a water spraying nozzle structure according to the present application.

[0023] Figure 7 A schematic view of a sectional structure of a driving block, a sliding block and a limiting assembly according to the present application.

[0024] Icon: 1 - mounting frame, 2 - case, 3 - vertical plate, 4 - screen cavity, 5 - mounting cavity, 6 - toughened glass, 7 - display screen, 8 - mounting plate, 9 - rubber wiper, 10 - water spraying pipe, 11 - cleaning brush, 12 - water spraying nozzle, 13 - strip-shaped groove, 14 - driving block, 15 - reciprocating lead screw, 16 - synchronous motor, 17 - telescopic rod, 18 - sleeve, 19 - support rod, 20 - center groove, 21 - tension spring, 22 - sliding block, 23 - sliding groove, 24 - fixed peg, 25 - movable rod, 26 - connecting peg, 27 - groove, 28 - upper protruding block, 29 - lower protruding block, 30 - upper mounting groove, 31 - lower mounting groove, 32 - support spring, 33 - water supply tank, 34 - telescopic pipe, 35 - water pump, 36 - water distribution pipe, 37 - air inlet, 38 - air vent, 39 - air outlet, 40 - cross-flow fan, 41 - support frame, 42 - top cover, 43 - dustproof net. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0026] Example 1: Please refer to Figure 1 , Figure 2The present invention shows a dual-screen information advertising machine, comprising a mounting frame 1, a chassis 2 is provided on the top of the mounting frame 1, the interior of the chassis 2 is divided into a screen cavity 4 and mounting cavities 5 located on the left and right sides of the screen cavity 4 by two vertical panels 3, and tempered glass 6 connected to the interior of the screen cavity 4 is embedded in the middle of the front and rear side walls of the chassis 2. Two display screens 7 facing the two tempered glasses 6 are symmetrically provided in the screen cavity 4 in a back-to-back manner; the outer surfaces of the two tempered glasses 6 are both slidably provided with a horizontally arranged mounting plate 8, and the two mounting cavities 5 are provided with a drive mounting plate. The lifting mechanism for lifting the mounting plate 8 is also provided with a driving mechanism for driving the mounting plate 8 to move horizontally; a rubber scraper 9, a water spray pipe 10 and a cleaning brush 11 are provided laterally from top to bottom on the side of the mounting plate 8 close to the chassis 2, and a plurality of water spray nozzles 12 connected thereto are provided at equal intervals along the length direction of the water spray pipe 10, and the water spray pipe 10 is connected to a water supply component. In actual use, by setting the lifting mechanism, the driving mechanism, the rubber scraper 9, the cleaning brush 11 and the water spray nozzle 12, the lifting mechanism can drive the mounting plate 8 to move up and down , thereby driving the rubber scraper 9, the cleaning brush 11 and the water nozzle 12 to move up and down. Before the lifting mechanism drives the rubber scraper 9, the cleaning brush 11 and the water nozzle 12 to move upward through the mounting plate 8, the driving mechanism has driven the mounting plate 8 to move horizontally away from the outer surface of the tempered glass 6, thereby preventing the rubber scraper 9 from contacting the outer surface of the tempered glass 6 during the lifting mechanism drives the rubber scraper 9 to rise through the mounting plate 8. The rubber scraper 9 is prevented from directly contacting the dry dust, thereby causing the dust to rub against the tempered glass 6, thereby damaging the tempered glass. 6, affecting the subsequent viewing effect of the display screen 7 through the tempered glass 6, and at the same time preventing the dry dust layer from damaging the surface of the rubber scraper 9 and affecting the normal operation of the rubber scraper 9, the lifting mechanism drives the rubber scraper 9, the cleaning brush 11 and the water nozzle 12 to move upward through the mounting plate 8, and the rubber scraper 9 does not contact the outer surface of the tempered glass 6. The water supply component supplies cleaning liquid to the water nozzle 10, and then the water nozzle 12 sprays the cleaning liquid to wash away the dust adhering to the outer surface of the tempered glass 6 and moisten it;When the lifting mechanism drives the rubber wiper 9, the cleaning brush 11 and the water nozzle 12 to move to the highest point, the driving mechanism drives the mounting plate 8 to move horizontally and then moves close to the outer surface of the toughened glass 6, so that the rubber wiper 9 and the cleaning brush 11 are in contact with the outer surface of the toughened glass 6. At this time, the lifting mechanism drives the rubber wiper 9, the cleaning brush 11 and the water nozzle 12 to move downward. The cleaning brush 11 first brushes the outer surface of the toughened glass 6. The cleaning liquid sprayed by the water nozzle 12 is washed and cleaned under the brushing of the cleaning brush 11. The rubber wiper 9 is attached to the surface of the toughened glass 6 to scrape the water marks left after the water nozzle 12 is washed and cleaned, so as to avoid the case that the surface of the toughened glass 6 is left with water marks after cleaning, thereby achieving the cleaning of the outer surface of the toughened glass 6. Through this structure, the outer surfaces of the toughened glasses 6 on the front and rear sides of the cabinet 2 can be cleaned at the same time, improving the practicability. By arranging the toughened glass 6, the display content of the display screen 7 arranged in the screen cavity 4 can be watched through the toughened glass 6, avoiding that the surface of the display screen 7 is directly exposed to the outside world, avoiding that the display screen 7 is damaged by the external environment, so as to better protect the display screen 7 and improve the service life of the product.

[0027] Embodiment 2: see Figure 1 、 Figure 2 It is shown that the left and right ends of the front and rear side walls of the cabinet 2 are vertically provided with strip-shaped grooves 13 which are in communication with the mounting cavities 5. The lifting mechanism comprises a driving block 14. The reciprocating lead screws 15 are vertically arranged in the mounting cavities 5. The synchronous motor 16 is arranged on the bottom side of the cabinet 2. The output shaft of the synchronous motor 16 penetrates the bottom side of the cabinet 2 and is in transmission connection with the reciprocating lead screws 15. The driving block 14 is in threaded connection with the reciprocating lead screws 15. The front and rear side walls of the driving block 14 are transversely provided with telescopic rods 17. The ends of the telescopic rods 17 away from the driving block 14 penetrate the mounting cavities 5 through the strip-shaped grooves 13 and are connected with the mounting plates 8. By arranging the strip-shaped grooves 13, the driving mechanism and the telescopic rods 17 can be smoothly lifted or lowered under the driving of the lifting mechanism. In actual use, the synchronous motor 16 drives the reciprocating lead screws 15 to rotate. The driving block 14 is in threaded engagement with the reciprocating lead screws 15, thereby driving the driving block 14 to move up and down. The synchronous motor 16 is arranged, thereby ensuring the synchronism of the rotation of the reciprocating lead screws 15 in the two mounting cavities 5.

[0028] See Figure 4 、 Figure 5It is shown that the telescopic rod 17 comprises a sleeve 18 and a support rod 19, the sleeve 18 is provided with a circular center groove 20, one end of the support rod 19 is connected with the mounting plate 8, the other end is inserted into the circular center groove 20, one end of the sleeve 18 away from the support rod 19 is connected with the driving block 14; the inside of the circular center groove 20 is provided with a tension spring 21, one end of the tension spring 21 is connected with the support rod 19, the other end is fixedly connected with the groove bottom of the circular center groove 20, when the driving mechanism drives the horizontal movement of the mounting plate 8, the rubber wiper 9 and the cleaning brush 11 contact with the outer surface of the tempered glass 6, the support rod 19 is completely placed in the circular center groove 20, by setting the support rod 19 and the sleeve 18, the support rod 19 is connected by the sleeve 18 through the insertion of the circular center groove 20, when the driving mechanism drives the horizontal movement of the mounting plate 8, the telescopic rod 17 is telescopic to support the mounting plate 8, and then ensure the stability of the horizontal movement of the mounting plate 8, by setting the tension spring 21, the support rod 19 is prevented from completely sliding out of the circular center groove 20 when the mounting plate 8 moves horizontally away from the outer surface of the tempered glass 6, and the stability of the connection is ensured.

[0029] Please refer to Figures 2 to 5It is shown that the driving mechanism comprises a sliding block 22, the height of the sliding block 22 is higher than the height of the driving block 14, the driving block 14 is vertically provided with a sliding groove 23 penetrating through the upper and lower sides of the driving block 14 at one end away from the screen cavity 4, the sliding block 22 is slidably connected with the driving block 14 through the sliding groove 23, two movable rods 25 are rotatably connected with the bottom of the side of the sliding block 22 away from the driving block 14 through a fixing bolt 24, the two movable rods 25 penetrate through the strip-shaped groove 13 at the ends away from the fixing bolt 24 and are rotatably connected with the end of the mounting plate 8 through a connecting bolt 26; the length of the movable rod 25 is longer than the length of the sleeve 18, the sliding block 22 is provided with a limiting component stopping the sliding block 22 from sliding along the sliding groove 23, in actual use, the mounting plate 8 can be automatically driven to move away from or close to the two sides of the cabinet 2 by setting the sliding block 22 and the movable rod 25, the driving block 14 drives the sliding block 22 to move downward, when the bottom of the sliding block 22 contacts with the bottom wall of the mounting cavity 5, the sliding block 22 stops moving, at this time, the driving block 14 continues to move downward, so that the movable rod 25 rotates around the fixing bolt 24 as the axis, the mounting plate 8 is subjected to a supporting force by the connecting bolt 26, the two mounting plates 8 are horizontally driven to move away from the outer surface of the tempered glass 6, at this time, the telescopic rod 17 is elongated to continue to support the mounting plate 8 and limit the horizontal movement of the mounting plate 8, when the driving block 14 moves downward to the bottom of the sliding block 22, the limiting component limits the sliding block 22, avoiding the relative sliding between the sliding block 22 and the driving block 14 to make the mounting plate 8 move close to the cabinet 2, thereby ensuring that the rubber wiper 9 and the cleaning brush 11 do not directly contact with the transparent glass during the upward movement, preventing the rubber wiper 9 and the cleaning brush 11 from directly contacting with dry dust, thereby making the dust rub on the tempered glass 6 to produce scratches on the outer surface of the tempered glass 6, affecting the display effect of the display screen 7 through the tempered glass 6, meanwhile, preventing the dry dust layer from damaging the surface of the rubber wiper 9 to affect the normal work of the rubber wiper 9, when the driving block 14 drives the sliding block 22 to the top of the sliding block 22 and contacts with the top wall of the mounting cavity 5, the sliding block 22 stops moving, at this time, the driving block 14 continues to move upward, so that the movable rod 25 rotates around the fixing bolt 24 as the axis to generate a pulling force on the mounting plate 8, the two mounting plates 8 are horizontally driven to move close to the tempered glass 6, at this time, the telescopic rod 17 is shortened to support the mounting plate 8 and limit the horizontal movement of the mounting plate 8, when the driving block 14 moves upward to the top of the sliding block 22, the telescopic rod 17 is retracted to the shortest length, so that the rubber wiper 9 and the cleaning brush are tightly attached to the outer surface of the tempered glass 6, meanwhile, the limiting component limits the sliding block 22 to avoid the relative movement between the sliding block 22 and the driving block 14, ensuring that the cleaning brush 11 can fully brush the surface of the tempered glass 6 during the downward movement, and ensuring that the rubber wiper 9 can wipe off the water marks during the downward movement.

[0030] Please refer to Figure 3 andFigure 7 It is shown that the groove bottom of the sliding groove 23 is provided with a groove 27; the limiting assembly comprises an upper protruding block 28 and a lower protruding block 29, and the side of the sliding block 22 close to the screen cavity 4 is provided with an upper mounting groove 30 and a lower mounting groove 31, and the upper mounting groove 30 and the lower mounting groove 31 are both provided with a supporting spring 32, one end of the two supporting springs 32 is connected with the groove bottom of the upper mounting groove 30 and the lower mounting groove 31 respectively, and the other end is connected with one end of the upper protruding block 28 and the lower protruding block 29 respectively, and the other end of the upper protruding block 28 and the lower protruding block 29 penetrates through the slot of the upper mounting groove 30 and the lower mounting groove 31 respectively; when the bottom of the sliding block 22 is flush with the bottom of the driving block 14, the end of the lower protruding block 29 away from the supporting spring 32 is placed in the groove 27, and when the top of the sliding block 22 is flush with the top of the driving block 14, the end of the upper protruding block 28 away from the supporting spring 32 is placed in the groove 27; by setting the groove 27, the upper protruding block 28 and the lower protruding block 29, when the driving block 14 drives the sliding block 22 to move upward, the end of the lower protruding block 29 away from the supporting spring 32 is placed in the groove 27 under the action of the supporting spring 32, and the sliding block 22 is limited; when the driving block 14 drives the sliding block 22 to move upward and the top of the sliding block 22 touches the top of the mounting cavity 5, the driving block 14 continues to move upward relative to the sliding block 22, the groove wall of the sliding groove 23 exerts a pressing force on the lower protruding block 29, and then the end of the lower protruding block 29 slides out of the groove 27 and is retracted into the lower mounting groove 31, so that the sliding block 22 is not limited, and the sliding block 22 and the sliding groove 23 slide relatively; at this time, the driving block 14 continues to move upward relative to the sliding block 22, when the groove wall of the sliding groove 23 contacts the upper protruding block 28, the groove wall exerts a pressing force on the upper protruding block 28, so that the upper protruding block 28 is retracted into the upper mounting groove 30, and a pressure is generated on the supporting spring 32; when the top of the driving block 14 rises to be flush with the top of the sliding block 22, the end of the upper protruding block 28 away from the supporting spring 32 penetrates through the upper mounting groove 30 and is placed in the groove 27 under the elastic force of the supporting spring 32, and then the sliding block 22 is limited; conversely, when the driving block 14 drives the sliding block 22 to move downward and the bottom of the sliding block 22 is flush with the bottom wall of the mounting cavity 5, the driving block 14 continues to move downward relative to the sliding block 22, the groove wall of the sliding groove 23 exerts a pressing force on the upper protruding block 28, and then the end of the upper protruding block 28 slides out of the groove 27 and is retracted into the upper mounting groove 30, so that the sliding block 22 is not limited, and the sliding block 22 and the sliding groove 23 slide relatively; at this time, the driving block 14 continues to move downward relative to the sliding block 22, when the groove wall of the sliding groove 23 contacts the lower protruding block 29, the groove wall exerts a pressing force on the lower protruding block 29, so that the lower protruding block 29 is retracted into the upper mounting groove 30, and a pressure is generated on the supporting spring 32; when the top of the driving block 14 falls to be flush with the top of the sliding block 22, the end of the lower protruding block 29 away from the supporting spring 32 penetrates through the upper mounting groove 30 and is placed in the groove 27 under the elastic force of the supporting spring 32, and then the sliding block 22 is limited.

[0031] Please refer to Figure 1 、 Figure 2 It is shown that the water supply assembly includes a water supply tank 33 and a telescopic pipe 34, the water supply tank 33 is arranged at the bottom of the mounting frame 1, a water inlet is arranged on the side wall of the water supply tank 33, through which clean water can be conveniently added to the inside of the water supply tank 33 for flushing, a water pump 35 is arranged inside the water supply tank 33, one end of the telescopic pipe 34 penetrates through the side wall of the water supply tank 33 and is connected in communication with the water outlet end of the water pump 35, and the other end is connected in communication with the water spraying pipe 10 through a water distribution pipe 36. In actual use, the water pump 35 can pump the clean water in the water supply tank 33 to the telescopic pipe 34, and then to the water spraying pipe 10 through the water distribution pipe 36, and finally sprayed out through the water spraying nozzle 12 for flushing and cleaning the screen.

[0032] Example 3: Please refer to Figure 1 、 Figure 2 It is shown that the front and rear side walls of the mounting frame 1 are each provided with an air inlet 37 connected in communication with the inside thereof, the bottom and top of the case 2 are each provided with an air vent 38 and an air outlet 39 connected in communication with the screen cavity 4, the bottom side of the case 2 opposite to the air vent 38 is provided with a cross-flow fan 40, and the top of the case 2 is provided with a top cover 42 through a support frame 41. The air inlet 37 is arranged for air intake, the cross-flow fan 40 can accelerate the air flow inside the screen cavity 4, so that the hot air in the screen cavity 4 flows to the top and is discharged through the air outlet 39, realizing replacement of all the hot air in the screen cavity 4, thereby achieving the effect of uniform heat dissipation. At the same time, the air outlet 39 is arranged at the top of the screen cavity 4. Since air rises when heated, the hot air inside the screen cavity 4 is more easily replaced and discharged, heat dissipation is realized, and the display screen 7 inside the screen cavity 4 can work normally. By arranging the top cover 42, rainwater can be prevented from entering the inside of the screen cavity 4 through the air outlet 39 at the top of the case 2, thereby affecting the display screen 7.

[0033] Please refer to Figure 1 、 Figure 2 It is shown that dust screens 43 are arranged at the air inlets 37 and the air outlets 39. By arranging the dust screens 43, dust from the outside can be prevented from entering the inside of the screen cavity 4 through the air inlets 37 and the air outlets 39, adhering to the display screen 7, and affecting the display effect of the display screen 7.

[0034] While the application has been described with reference to numerous exemplary embodiments, it will be understood that various other modifications can be made within the scope of the application as disclosed herein. More particularly, many modifications can be made to the components and / or arrangements of the subject combinations within the scope and spirit of the disclosure, and applicants will not be limited to the specific recitations of the figures and the claims. Other aspects, features and advantages of the application will become apparent to those skilled in the art from the following description.

Claims

1. A dual-screen information advertising machine, comprising a mounting frame (1), characterized in that: A chassis (2) is provided on the top of the installation frame (1), and the interior of the chassis (2) is divided into a screen cavity (4) and installation cavities (5) located on the left and right sides of the screen cavity (4) by two vertical panels (3). Tempered glass (6) communicating with the interior of the screen cavity (4) is embedded in the middle of the front and rear side walls of the chassis (2), and two display screens (7) facing the two tempered glasses (6) are symmetrically provided in the screen cavity (4) in a back-to-back manner; a transversely arranged installation plate (8) is slidably provided on the outer surface of the two tempered glasses (6), and a lifting mechanism for driving the installation plate (8) to move up and down is provided in the two installation cavities (5), and a driving mechanism for driving the installation plate (8) to move horizontally is also provided on the lifting mechanism; A rubber scraper (9), a water spray pipe (10) and a cleaning brush (11) are horizontally provided on one side of the mounting plate (8) close to the chassis (2) from top to bottom. The water spray pipe (10) is provided with a plurality of water spray nozzles (12) connected thereto at equal intervals along its length direction. The water spray pipe (10) is connected to a water supply assembly. The left and right ends of the front and rear side walls of the chassis (2) are vertically provided with strip grooves (13) connected to the mounting cavity (5). The lifting mechanism includes a driving block (14), which is vertically rotated in the mounting cavity (5). A reciprocating screw (15) is provided, a synchronous motor (16) is provided on the bottom side of the chassis (2), an output shaft of the synchronous motor (16) passes through the bottom side of the chassis (2) and is transmission-connected to the reciprocating screw (15), and the drive block (14) is threadedly connected to the reciprocating screw (15); telescopic rods (17) are transversely provided on both the front and rear side walls of the drive block (14), and one end of the telescopic rod (17) away from the drive block (14) passes through the installation cavity (5) through the strip groove (13) and is connected to the installation plate (8); The telescopic rod (17) includes a sleeve (18) and a support rod (19), the sleeve (18) is provided with a center groove (20), one end of the support rod (19) is connected to the mounting plate (8), and the other end is inserted into the center groove (20), and the end of the sleeve (18) away from the support rod (19) is connected to the driving block (14); a tension spring (21) is provided inside the center groove (20), one end of the tension spring (21) is connected to the support rod (19), and the other end is fixedly connected to the bottom of the center groove (20); when the driving mechanism drives the mounting plate (8) to move horizontally so that the rubber scraper (9) and the cleaning brush (11) contact the outer surface of the tempered glass (6), the support rod (19) is completely placed in the center groove (20); The driving mechanism includes a slider (22), the height of the slider (22) is higher than the height of the driving block (14), and a sliding groove (23) is vertically opened on the end of the driving block (14) away from the screen cavity (4) and runs through the upper and lower sides thereof. The slider (22) is slidably connected to the driving block (14) through the sliding groove (23), and the bottom of the slider (22) away from the driving block (14) is rotatably connected to two movable rods (25) through a fixing bolt (24). The ends of the two movable rods (25) away from the fixing bolt (24) respectively pass through the strip groove (13) and are rotatably connected to the end of the mounting plate (8) through a connecting bolt (26). The length of the movable rod (25) is longer than the length of the sleeve (18); and a limiting component is provided on the slider (22) for stopping the slider (22) from sliding along the sliding groove (23).

2. The dual-screen information advertising machine according to claim 1, characterized in that: The bottom of the sliding groove (23) is provided with a groove (27); the limiting assembly includes an upper protrusion (28) and a lower protrusion (29); an upper mounting groove (30) and a lower mounting groove (31) are provided on a side of the slider (22) close to the screen cavity (4); support springs (32) are provided in the upper mounting groove (30) and the lower mounting groove (31); one end of the two support springs (32) is connected to the bottom of the upper mounting groove (30) and the bottom of the lower mounting groove (31), respectively, and the other end is connected to the upper protrusion (28) and the lower protrusion (31). The upper protrusion (28) and the lower protrusion (29) are respectively passed through the notches of the upper mounting groove (30) and the lower mounting groove (31); when the bottom of the slider (22) is flush with the bottom of the driving block (14), the end of the lower protrusion (29) away from the support spring (32) is placed in the groove (27); when the top of the slider (22) is flush with the top of the driving block (14), the end of the upper protrusion (28) away from the support spring (32) is placed in the groove (27).

3. The dual-screen information advertising machine according to claim 1, characterized in that: The water supply assembly comprises a water supply box (33) and a telescopic pipe (34). The water supply box (33) is arranged at the bottom of the installation frame (1). A water pump (35) is provided inside the water supply box (33). One end of the telescopic pipe (34) passes through the side wall of the water supply box (33) and is connected to the water outlet end of the water pump (35), and the other end is connected to the water spray pipe (10) through a water distribution pipe (36).

4. The dual-screen information advertising machine according to claim 1, characterized in that: The front and rear side walls of the mounting frame (1) are provided with air inlets (37) communicating with the interior thereof, the bottom and top of the chassis (2) are provided with ventilation openings (38) and air outlets (39) communicating with the screen cavity (4), respectively, a cross-flow fan (40) is provided on the bottom side of the chassis (2) facing the ventilation openings (38), and a top cover (42) is provided on the top of the chassis (2) via a support frame (41).

5. The dual-screen information advertising machine according to claim 4, characterized in that: The air inlet (37) and the air outlet (39) are both provided with dustproof nets (43).

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