CN110956904A

CN110956904A - Multifunctional advertising board

Info

Publication number: CN110956904A
Application number: CN202010038608.9A
Authority: CN
Inventors: 不公告发明人
Original assignee: Shengzhou Luebai Advertising Co Ltd
Current assignee: JINHUA JIZHI PAPER PRODUCT Co.,Ltd.
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-04-03
Anticipated expiration: 2040-01-14
Also published as: CN110956904B

Abstract

The invention discloses a multifunctional advertising board, which comprises a shell, wherein a first cavity is arranged in the shell, a first rotating shaft is rotatably arranged on the front end wall and the rear end wall of the first cavity, a first belt wheel and a first transmission gear are coaxially and fixedly arranged on the first rotating shaft, a second transmission gear is meshed below the first transmission gear and fixedly arranged on the second rotating shaft, the multifunctional advertising board has a simple structure and convenient operation, integrates multiple functions, can effectively attract passers to watch, provides a seat and a rain shed, can enable more people to watch advertisements in certain occasions, and plays a better role in popularization, and is provided with a plurality of reel devices, so that the advertising board can display eight advertisements at most after once advertisement replacement, and further improves the efficiency and freshness.

Description

Multifunctional advertising board

Technical Field

The invention relates to an advertisement, in particular to a multifunctional billboard.

Background

The advertisement, as the name implies, is an advertisement that informs the general public of the society of something. The billboard is a signaling tool in the pull system to initiate the next production process, or to carry the product to a downstream process. This term is meant in japanese as "signal" or "signal plate". Generally refers to any outdoor medium that delivers advertising information. The media size is dependent on the actual environment. The pictures of the shop signboard, the shop head and the facade can be made by hand drawing, computer making or printing on paper. The materials of the billboard are generally as follows: square tubes, angle steel, and the like. There may be three-dimensional board, lamp cloth, plastic uptake, automobile baking finish, buckle, aluminum plastic board, etc.

At present, a common billboard can only display advertisements on the front side and the back side, visual fatigue is easily caused when the same advertisement is displayed for a long time, and the popularization effect of the advertisement is weakened.

Disclosure of Invention

Aiming at the technical defects, the invention provides a multifunctional billboard which can overcome the defects.

The invention is realized by the following technical scheme.

A multifunctional billboard comprises a shell, wherein a first cavity is arranged in the shell, a first rotating shaft is rotatably arranged on the front end wall and the rear end wall of the first cavity, a first belt wheel and a first transmission gear are coaxially and fixedly arranged on the first rotating shaft, a second transmission gear is meshed below the first transmission gear and fixedly arranged on the second rotating shaft, two ends of the second rotating shaft are rotatably arranged in the front end wall and the rear end wall of the first cavity, an upper rack is meshed above the first transmission gear and can move left and right in an upper rack groove arranged in the first cavity, a lower rack is meshed below the second transmission gear and can move left and right in a lower rack groove arranged in the first cavity, a third rotating shaft is rotatably arranged on the inner side of the right end of the first cavity and arranged in the front end wall and the rear end wall of the first cavity, a second belt wheel and a third belt wheel are coaxially and fixedly arranged on the third rotating shaft, the first belt wheel is connected with the second belt wheel through a first belt, a second cavity is arranged in the shell above the first cavity, a belt wheel set is arranged in the second cavity, the belt wheel set is arranged in the second cavity through shafts with two ends rotatably arranged in the front end surface and the rear end surface of the second cavity, the belt wheel set is connected with a first motor in a power mode, left and right lamp tubes are respectively and fixedly arranged in the belt wheel sets at the inner sides of the left end wall and the right end wall of the second cavity, left glass and right glass are respectively arranged at the left side and the right side of the first cavity, the left glass and the right glass are respectively hinged and arranged on a fourth rotating shaft and a fifth rotating shaft with two ends rotatably arranged in the front end surface and the rear end surface of the second cavity, opening and closing mechanisms are symmetrically arranged at the left side and the right side, and a telescopic mechanism is arranged in the third cavity, a braking mechanism is arranged between the telescopic mechanism and the opening and closing mechanism, and a cleaning mechanism is arranged outside the shell.

Beneficially, the opening and closing mechanism comprises a sixth rotating shaft rotatably mounted in the front and rear end walls of the second cavity, a first winding drum and a fourth belt wheel are coaxially and fixedly mounted on the sixth rotating shaft, a steel cable is connected to the first winding drum, the other end of the steel cable is connected with the upper ends of the left glass and the right glass, a seventh rotating shaft is arranged in the second cavity above the fourth belt wheel, two ends of the seventh rotating shaft are rotatably mounted in the front and rear end walls of the second cavity, a fifth belt wheel and a sixth belt wheel are coaxially and fixedly mounted on the seventh rotating shaft, the fifth belt wheel and the fourth belt wheel are connected through a second belt, a seventh belt wheel and a fourth transmission gear are arranged on the inner side of the sixth belt wheel, the seventh belt wheel and the fourth transmission gear are coaxially and fixedly mounted on the eighth rotating shaft, and the seventh belt wheel and the sixth belt wheel are connected through a third belt, and two ends of the eighth rotating shaft are rotatably arranged in the front end wall and the rear end wall of the second cavity.

Beneficially, the braking mechanism comprises a ninth rotating shaft, the front end and the rear end of the ninth rotating shaft are rotatably mounted in the second cavity, the ninth rotating shaft is connected with a second motor in a power mode, a fifth transmission gear meshed with the fourth transmission gear is fixedly mounted on the ninth rotating shaft, a baffle is fixedly mounted on the fifth transmission gear, a moving groove is formed in the left side of the baffle, a limiting block capable of moving up and down is arranged in the moving groove, a limiting spring is connected to the upper end of the limiting block, a first connecting rod is connected to the upper end of the limiting spring, a second connecting rod is hinged to the upper end of the first connecting rod, the second connecting rod is rotatably mounted on a tenth rotating shaft, the two ends of the tenth rotating shaft are rotatably mounted in the front end face and the rear end face of the second cavity, a third connecting rod is hinged to the right end of the second connecting rod, and a, and a fourth connecting rod is further rotatably mounted on the spline shaft, and the middle of the fourth connecting rod is rotatably mounted on an eleventh rotating shaft. The two ends of the eleventh rotating shaft are rotatably arranged in the front end wall and the rear end wall of the third cavity, a transverse moving groove is formed in the shell on the right side of the third cavity, and the fourth connecting rod can move in the transverse moving groove.

Advantageously, the telescopic mechanism comprises a twelfth rotating shaft, two ends of the twelfth rotating shaft are rotatably installed in the front and rear end walls of the third cavity, an eighth pulley and a ninth pulley are coaxially and fixedly installed on the twelfth rotating shaft, the eighth pulley and the third pulley are connected through a fourth belt, a thirteenth rotating shaft is arranged in a third cavity on the left of the ninth pulley, two ends of the thirteenth rotating shaft are rotatably installed in the front and rear end walls of the third cavity, a first bevel gear and a tenth pulley are coaxially and fixedly installed on the thirteenth rotating shaft, the tenth pulley and the ninth pulley are connected through a fifth belt, a second bevel gear is engaged with the lower end of the first bevel gear, the second bevel gear is fixedly installed on a fourteenth rotating shaft, the fourteenth rotating shaft is rotatably installed in the bottom end surface of the third cavity, and a sixth transmission gear is further fixedly installed below the second bevel gear on the fourteenth rotating shaft, a seventh transmission gear is meshed on the left side of the sixth transmission gear, an eighth transmission gear and a worm are arranged above the seventh transmission gear, the eighth transmission gear and the worm are coaxially and fixedly installed on a fifteenth rotating shaft, the fifteenth rotating shaft is rotatably installed in the bottom end face of the third cavity, a worm wheel is meshed on the right side of the worm, a second winding drum is fixedly installed at the front end of the worm wheel, a rain cloth is connected onto the second winding drum, one end of the rain cloth is connected with a stop block, a ninth transmission gear is meshed on the left side of the eighth transmission gear, the ninth transmission gear is fixedly installed on a sixteenth rotating shaft, the sixteenth rotating shaft is rotatably installed in the bottom end face of the third cavity, a first rotating body is fixedly installed on a sixteenth rotating shaft above the ninth transmission gear, and a second rotating body is hinged, the left end of the second rotating body is fixedly connected with the stop block.

Beneficially, the cleaning mechanism comprises a first lead screw, two ends of the first lead screw are rotatably mounted in the shell, a first limiting rod is vertically arranged on the first lead screw, a first sliding block is in threaded fit with the first lead screw, a third motor is in power connection with the right end of the first lead screw, an eleventh belt wheel is fixedly mounted on the first lead screw on the left side of the third motor, a twelfth belt wheel is arranged above the eleventh belt wheel, the eleventh belt wheel and the twelfth belt wheel are connected through a sixth belt, the twelfth belt wheel is fixedly mounted on the second lead screw, two ends of the second lead screw are rotatably mounted in the shell, a second limiting rod is vertically arranged on the second lead screw, a second sliding block is in threaded fit with the second lead screw, the first sliding block and the second sliding block are connected through the third lead screw and the third limiting rod, and a first cleaning plate is in threaded fit with the third limiting rod between the first sliding block and the second sliding block And the second cleaning plate is arranged on the bottom of the third lead screw, and a fourth motor is dynamically connected in the first sliding block at the bottom end of the third lead screw.

The invention has the beneficial effects that: the device simple structure, convenient operation has assembleed multiple functions, can effectively attract passerby to watch to seat and canopy have been provided, can let more people watch the advertisement in some occasions, play better popularization effect, set up a plurality of reel equipment in the device simultaneously, can demonstrate eight advertisements at most once after changing the advertisement, more raise the efficiency and feel fresh.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view in the direction A-A of FIG. 1 according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1 according to an embodiment of the present invention;

fig. 4 is an enlarged schematic view of the structure at C in fig. 3 according to the embodiment of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The invention will now be described in detail with reference to fig. 1-4, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The multifunctional billboard combined with the attached drawings 1-4 comprises a shell 1, wherein a first cavity 91 is arranged in the shell 1, a first rotating shaft 4 is rotatably arranged on the front end wall and the rear end wall of the first cavity 91, a first driving wheel 5 and a first transmission gear 6 are coaxially and fixedly arranged on the first rotating shaft 4, a second transmission gear 8 is meshed below the first transmission gear 6, the second transmission gear 8 is fixedly arranged on a second rotating shaft 7, two ends of the second rotating shaft 7 are rotatably arranged in the front end wall and the rear end wall of the first cavity 91, an upper rack 2 is meshed above the first transmission gear 6, the upper rack 2 can move left and right in an upper rack groove 92 arranged in the first cavity 91, a lower rack 3 is meshed below the second transmission gear 8, the lower rack 3 can move left and right in a lower rack groove 93 arranged in the first cavity 91, first cavity 91 right-hand member inboard is provided with to rotate and installs third pivot 10 in the front and back end wall of first cavity 91, coaxial fixed mounting has second band pulley 12 and third band pulley 11 on the third pivot 10, first band pulley 5 with connect through first belt 9 between the second band pulley 12, be provided with second cavity 94 in the casing 1 above first cavity 91, be provided with band pulley group 28 in the second cavity 94, the axle that installs in the front and back end face of second cavity 94 is rotated through both ends to band pulley group 28 is installed in the second cavity 94, power connection has first motor 30 on the band pulley group 28, fixed mounting has left and right fluorescent tube 29 respectively in the end wall inboard band pulley group 28 about the second cavity 94, the first cavity 94 left and right sides is provided with left glass 24 and right glass 27 respectively, left glass 24 and right glass 27 articulate respectively and install at both ends rotate install in fourth pivot 25 and the fourth pivot 25 in the front and back end face of second cavity 94 and right glass 27 and install in the end face of second cavity 94 On the five rotating shafts 26, opening and closing mechanisms 101 are symmetrically arranged on the left and right sides of the inner side above the second cavity 94, a third cavity 95 is arranged above the opening and closing mechanisms 101, a telescopic mechanism 102 is arranged in the third cavity 95, a braking mechanism 103 is arranged between the telescopic mechanism 102 and the opening and closing mechanism 101, and a cleaning mechanism 104 is arranged on the outer side of the shell 1.

Advantageously, the opening and closing mechanism 101 includes a sixth rotating shaft 48 rotatably installed in the front and rear end walls of the second cavity 94, a first reel 49 and a fourth pulley 50 are coaxially and fixedly installed on the sixth rotating shaft 48, a cable 55 is connected to the first reel 49, the other end of the cable 55 is connected to the upper ends of the left glass 24 and the right glass 27, a seventh rotating shaft 52 is installed in the second cavity 94 above the fourth pulley 50, both ends of the seventh rotating shaft 52 are rotatably installed in the front and rear end walls of the second cavity 94, a fifth pulley 53 and a sixth pulley 54 are coaxially and fixedly installed on the seventh rotating shaft 52, the fifth pulley 53 and the fourth pulley 50 are connected by a second belt 51, a seventh pulley 45 and a fourth transmission gear 46 are installed inside the sixth pulley 54, the seventh pulley 45 and the fourth transmission gear 46 are coaxially and fixedly installed on the eighth rotating shaft 44, the seventh pulley 45 and the sixth pulley 54 are connected by a third belt 47, and both ends of the eighth rotating shaft 44 are rotatably mounted in the front and rear end walls of the second cavity 94.

Advantageously, the braking mechanism 103 includes a ninth rotating shaft 31, the front and rear ends of the ninth rotating shaft 31 are rotatably mounted in the second cavity 94, the ninth rotating shaft 31 is connected to the second motor 32, the ninth rotating shaft 31 is fixedly mounted with a fifth transmission gear 33 engaged with the fourth transmission gear 46, the fifth transmission gear 33 is fixedly mounted with a baffle 34, the left side of the baffle 34 is provided with a moving slot 96, the moving slot 96 is provided with a limit block 36 capable of moving up and down therein, the upper end of the limit block 36 is connected to a limit spring 37, the upper end of the limit spring 37 is connected to a first connecting rod 38, the upper end of the first connecting rod is hinged to a second connecting rod 40, the second connecting rod 40 is rotatably mounted on a tenth rotating shaft 43, the two ends of the tenth rotating shaft 43 are rotatably mounted in the front and rear end surfaces of the second cavity 94, and the right end of the second connecting rod 40 is hinged to a third connecting rod 42, the top end of the third connecting rod 42 is rotatably provided with a spline shaft 39, the spline shaft 39 is further rotatably provided with a fourth connecting rod 14, and the middle of the fourth connecting rod 14 is rotatably arranged on an eleventh rotating shaft 41. Both ends of the eleventh rotating shaft 41 are rotatably installed in the front and rear end walls of the third cavity 95, a traverse groove 97 is provided in the right housing 1 of the third cavity 95, and the fourth link 14 can move in the traverse groove 97.

Advantageously, the telescopic mechanism 102 includes a twelfth rotating shaft 57, both ends of the twelfth rotating shaft 57 are rotatably installed in the front and rear end walls of the third cavity 95, an eighth pulley 56 and a ninth pulley 58 are coaxially and fixedly installed on the twelfth rotating shaft 57, the eighth pulley 56 and the third pulley 11 are connected by a fourth belt 13, a thirteenth rotating shaft 61 is arranged in the third cavity 95 on the left side of the ninth pulley 58, both ends of the thirteenth rotating shaft 61 are rotatably installed in the front and rear end walls of the third cavity 95, a first bevel gear 62 and a tenth pulley 60 are coaxially and fixedly installed on the thirteenth rotating shaft 61, the tenth pulley 60 and the ninth pulley 58 are connected by a fifth belt 59, a second bevel gear 63 is engaged with the lower end of the first bevel gear 62, the second bevel gear 63 is fixedly installed on a fourteenth rotating shaft 64, and the fourteenth rotating shaft 64 is rotatably installed in the bottom end surface of the third cavity 95, a sixth transmission gear 65 is fixedly mounted below the second bevel gear 63 on the fourteenth rotating shaft 64, a seventh transmission gear 85 is meshed on the left side of the sixth transmission gear 65, an eighth transmission gear 67 and a worm 68 are arranged above the seventh transmission gear 85, the eighth transmission gear 67 and the worm 68 are coaxially and fixedly mounted on a fifteenth rotating shaft 66, the fifteenth rotating shaft 66 is rotatably mounted in the bottom end surface of the third cavity 95, a worm wheel 20 is meshed on the right side of the worm 68, a second winding drum 86 is fixedly mounted at the front end of the worm wheel 20, a rain cloth 15 is connected to the second winding drum 86, a stopper 16 is connected to one end of the rain cloth 15, a ninth transmission gear 22 is meshed on the left side of the eighth transmission gear 67, the ninth transmission gear 22 is fixedly mounted on a sixteenth rotating shaft 23, and the sixteenth rotating shaft 23 is rotatably mounted in the bottom end surface of the third cavity, a first rotating body 19 is fixedly mounted on a sixteenth rotating shaft 23 above the ninth transmission gear 22, a second rotating body 17 is hinged to the left side of the first rotating body 19, and the left end of the second rotating body 17 is fixedly connected with the stop block 16.

Beneficially, the cleaning mechanism 104 includes a first lead screw 71, two ends of the first lead screw 71 are rotatably mounted in the housing 1, a first limiting rod 70 is disposed above and below the first lead screw 71, a first sliding block 72 is in threaded fit with the first lead screw 71, a third motor 84 is dynamically connected to a right end of the first lead screw 71, an eleventh pulley 83 is fixedly mounted on the first lead screw 71 on the left side of the third motor 84, a twelfth pulley 81 is disposed above the eleventh pulley 83, the eleventh pulley 83 and the twelfth pulley 81 are connected through a sixth belt 82, the twelfth pulley 81 is fixedly mounted on a second lead screw 80, two ends of the second lead screw 80 are rotatably mounted in the housing 1, a second limiting rod 79 is disposed above and below the second lead screw 80, a second sliding block 78 is in threaded fit with the second lead screw 80, and the first sliding block 72 and the second sliding block 78 are connected through a third lead screw 75 and a third limiting rod 74, a first cleaning plate 76 and a second cleaning plate 77 are matched on a third lead screw 75 and a third limiting rod 74 between the first sliding block 72 and the second sliding block 78 through threads, and a fourth motor 73 is connected in the first sliding block 72 at the bottom end of the third lead screw 75 in a power mode.

When the device starts to work, the mechanical action sequence of the whole device is as follows:

1. the upper rack 2 is pulled out leftwards, the upper rack 2 moves leftwards to drive a first transmission gear 6 to rotate, the first transmission gear 6 rotates to drive a second transmission gear 8 to rotate, the second transmission gear 8 rotates to drive a lower rack 3 to move leftwards, the function of a chair can be realized, the first transmission gear 6 rotates to drive a first belt wheel 5 to rotate, the first belt wheel 5 rotates to drive a second belt wheel 12 to rotate through a first belt 9, the second belt wheel 12 rotates to drive a third belt wheel 11 to rotate, the third belt wheel 11 rotates to drive an eighth belt wheel 56 to rotate through a fourth belt 13, the eighth belt wheel 56 rotates to drive a ninth belt wheel 58 to rotate, the ninth belt wheel 58 rotates to drive a tenth belt wheel 60 to rotate through a fifth belt 59, and the tenth belt wheel 60 rotates to drive a first bevel gear 62 to rotate, the first bevel gear 62 rotates to drive the second bevel gear 63 to rotate, the second bevel gear 63 rotates to drive the sixth transmission gear 65 to rotate, the sixth transmission gear 65 rotates to drive the seventh transmission gear 85 to rotate, the seventh transmission gear 85 rotates to drive the eighth transmission gear 67 and the worm 68 to rotate, the worm 68 rotates to drive the worm wheel 20 to rotate, the worm wheel 20 rotates to drive the second winding drum 86 to rotate to pull out the rain cloth 15, the eighth transmission gear 67 rotates to drive the ninth transmission gear 22 to rotate, and the ninth transmission gear 22 rotates to drive the first rotator 19 and the second rotator 17 to rotate to push out the stop block 16, so that the canopy is opened.

2. The first motor 30 is activated to rotate the pulley assembly 28, which can be used to replace an advertisement canvas.

3. The fourth connecting rod 14 is pressed downwards and moved rightwards to be clamped into the transverse moving groove 97, at this time, the limiting block 36 is located at the lowest end of the moving groove 96, the fifth transmission gear 33 can only rotate forwards, then the second motor 32 is started, the second motor 32 rotates to drive the fifth transmission gear 33 to rotate, the fifth transmission gear 33 rotates to finally drive the first reel 49 to rotate through gear and belt wheel transmission, the first reel 49 rotates to drive the left glass 24 and the right glass 27 to rotate through the steel cable 55, and the second cavity 94 is opened.

4. The third motor 84 and the fourth motor 73 are started to drive the first lead screw 71, the second lead screw 80 and the third lead screw 75 to rotate, and the first lead screw 71, the second lead screw 80 and the third lead screw 75 rotate to drive the first sliding block 72, the second sliding block 78, the first cleaning plate 76 and the second cleaning plate 77 to move, so that the left glass 24 and the right glass 27 are cleaned.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims

1. A multifunctional billboard comprises a shell, wherein a first cavity is arranged in the shell, a first rotating shaft is rotatably arranged on the front end wall and the rear end wall of the first cavity, a first belt wheel and a first transmission gear are coaxially and fixedly arranged on the first rotating shaft, a second transmission gear is meshed below the first transmission gear and fixedly arranged on the second rotating shaft, two ends of the second rotating shaft are rotatably arranged in the front end wall and the rear end wall of the first cavity, an upper rack is meshed above the first transmission gear and can move left and right in an upper rack groove arranged in the first cavity, a lower rack is meshed below the second transmission gear and can move left and right in a lower rack groove arranged in the first cavity, a third rotating shaft is rotatably arranged on the inner side of the right end of the first cavity and arranged in the front end wall and the rear end wall of the first cavity, a second belt wheel and a third belt wheel are coaxially and fixedly arranged on the third rotating shaft, the first belt wheel is connected with the second belt wheel through a first belt, a second cavity is arranged in the shell above the first cavity, a belt wheel set is arranged in the second cavity, the belt wheel set is arranged in the second cavity through shafts with two ends rotatably arranged in the front end surface and the rear end surface of the second cavity, the belt wheel set is connected with a first motor in a power mode, left and right lamp tubes are respectively and fixedly arranged in the belt wheel sets at the inner sides of the left end wall and the right end wall of the second cavity, left glass and right glass are respectively arranged at the left side and the right side of the first cavity, the left glass and the right glass are respectively hinged and arranged on a fourth rotating shaft and a fifth rotating shaft with two ends rotatably arranged in the front end surface and the rear end surface of the second cavity, opening and closing mechanisms are symmetrically arranged at the left side and the right side, and a telescopic mechanism is arranged in the third cavity, a braking mechanism is arranged between the telescopic mechanism and the opening and closing mechanism, and a cleaning mechanism is arranged outside the shell.

2. The multifunctional billboard of claim 1, wherein: the opening and closing mechanism comprises a sixth rotating shaft which is rotatably arranged in the front end wall and the rear end wall of the second cavity, a first winding drum and a fourth belt wheel are coaxially and fixedly arranged on the sixth rotating shaft, the first winding drum is connected with a steel cable, the other end of the steel cable is connected with the upper ends of the left glass and the right glass, a seventh rotating shaft is arranged in the second cavity above the fourth belt pulley, two ends of the seventh rotating shaft are rotatably arranged in the front end wall and the rear end wall of the second cavity, a fifth belt wheel and a sixth belt wheel are coaxially and fixedly arranged on the seventh rotating shaft, the fifth belt wheel and the fourth belt wheel are connected through a second belt, a seventh belt wheel and a fourth transmission gear are arranged on the inner side of the sixth belt wheel, the seventh belt wheel and the fourth transmission gear are coaxially and fixedly arranged on an eighth rotating shaft, the seventh belt wheel is connected with the sixth belt wheel through a third belt, and two ends of the eighth rotating shaft are rotatably arranged in the front end wall and the rear end wall of the second cavity.

3. The multifunctional billboard of claim 1, wherein: the braking mechanism comprises a ninth rotating shaft, the front end and the rear end of the ninth rotating shaft are rotatably installed in the second cavity, a second motor is connected to the ninth rotating shaft in a power mode, a fifth transmission gear meshed with the fourth transmission gear is fixedly installed on the ninth rotating shaft, a baffle is fixedly installed on the fifth transmission gear, a moving groove is formed in the left side of the baffle, a limiting block capable of moving up and down is arranged in the moving groove, a limiting spring is connected to the upper end of the limiting block, a first connecting rod is connected to the upper end of the limiting spring, a second connecting rod is hinged to the upper end of the first connecting rod, the second connecting rod is rotatably installed on a tenth rotating shaft, the two ends of the tenth rotating shaft are rotatably installed in the front end face and the rear end face of the second cavity, a third connecting rod is hinged to the second connecting rod, and a spline shaft is rotatably, and a fourth connecting rod is further rotatably mounted on the spline shaft, and the middle of the fourth connecting rod is rotatably mounted on an eleventh rotating shaft.

4. The two ends of the eleventh rotating shaft are rotatably arranged in the front end wall and the rear end wall of the third cavity, a transverse moving groove is formed in the shell on the right side of the third cavity, and the fourth connecting rod can move in the transverse moving groove.

5. The multifunctional billboard of claim 1, wherein: the telescopic mechanism comprises a twelfth rotating shaft, two ends of the twelfth rotating shaft are rotatably arranged in the front end wall and the rear end wall of the third cavity, an eighth belt wheel and a ninth belt wheel are coaxially and fixedly arranged on the twelfth rotating shaft, the eighth belt wheel is connected with the third belt wheel through a fourth belt, a thirteenth rotating shaft is arranged in a third cavity on the left side of the ninth belt wheel, two ends of the thirteenth rotating shaft are rotatably arranged in the front end wall and the rear end wall of the third cavity, a first bevel gear and a tenth belt wheel are coaxially and fixedly arranged on the thirteenth rotating shaft, the tenth belt wheel is connected with the ninth belt wheel through a fifth belt, a second bevel gear is meshed at the lower end of the first bevel gear, the second bevel gear is fixedly arranged on a fourteenth rotating shaft, the fourteenth rotating shaft is rotatably arranged in the bottom end surface of the third cavity, and a sixth transmission gear is further fixedly arranged below the second bevel gear on the fourteenth rotating, a seventh transmission gear is meshed on the left side of the sixth transmission gear, an eighth transmission gear and a worm are arranged above the seventh transmission gear, the eighth transmission gear and the worm are coaxially and fixedly installed on a fifteenth rotating shaft, the fifteenth rotating shaft is rotatably installed in the bottom end face of the third cavity, a worm wheel is meshed on the right side of the worm, a second winding drum is fixedly installed at the front end of the worm wheel, a rain cloth is connected onto the second winding drum, one end of the rain cloth is connected with a stop block, a ninth transmission gear is meshed on the left side of the eighth transmission gear, the ninth transmission gear is fixedly installed on a sixteenth rotating shaft, the sixteenth rotating shaft is rotatably installed in the bottom end face of the third cavity, a first rotating body is fixedly installed on a sixteenth rotating shaft above the ninth transmission gear, and a second rotating body is hinged, the left end of the second rotating body is fixedly connected with the stop block.

6. The multifunctional billboard of claim 1, wherein: the cleaning mechanism comprises a first lead screw, two ends of the first lead screw are rotatably installed in the shell, a first limiting rod is arranged on the first lead screw from top to bottom, a first sliding block is arranged on the first lead screw in a threaded fit mode, the right end of the first lead screw is connected with a third motor in a power mode, an eleventh belt wheel is fixedly installed on the first lead screw on the left side of the third motor, a twelfth belt wheel is arranged above the eleventh belt wheel, the eleventh belt wheel and the twelfth belt wheel are connected through a sixth belt, the twelfth belt wheel is fixedly installed on the second lead screw, two ends of the second lead screw are rotatably installed in the shell, a second limiting rod is arranged on the second lead screw from top to bottom, a second sliding block is arranged on the second lead screw in a threaded fit mode, the first sliding block and the second sliding block are connected through the third lead screw and the third limiting rod, and a first cleaning plate and a second cleaning plate are arranged on the third lead screw and the third limiting rod between the first sliding block and the second sliding Clean the board, power is connected with the fourth motor in the first slider of third lead screw bottom.