Disclosure of Invention
The invention aims to provide an outdoor billboard capable of being lifted and having a rain shielding function, which can overcome the defects in the prior art, so that the practicability of the device is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a liftable outdoor billboard with a rain shielding function, which comprises a lower support column, wherein a first rotating cavity is arranged in the lower support column, a first rotating shaft is arranged in the first rotating cavity, a pin is fixedly arranged on the left wall surface of the first rotating cavity and is connected with the first rotating shaft in a sliding manner, a positioning rod extending upwards is arranged on the left side of the first rotating cavity and is connected with the lower support column in a sliding manner, a second rotating shaft extending upwards is fixedly arranged above the first rotating shaft, a main box body is arranged above the lower support column, a second rotating cavity is arranged in the main box body, a first belt wheel is arranged in the second rotating cavity and is fixedly connected with the second rotating shaft, the main box body is fixedly connected with the positioning rod, a first driving belt is slidably arranged on the first belt wheel, and a first ratchet wheel is arranged behind the first belt wheel, the first ratchet wheel is in transmission connection with the first belt wheel through the first transmission belt, a third rotating shaft extending downwards is fixedly arranged below the first ratchet wheel, a first motor is arranged below the third rotating shaft in a power connection manner, a third rotating cavity is arranged below the first motor, the third rotating shaft extends downwards to penetrate through the first motor, a second ratchet wheel is arranged inside the third rotating cavity and is fixedly connected with the third rotating shaft, a second transmission belt is arranged on the second ratchet wheel in a sliding manner, a second belt wheel is arranged behind the second ratchet wheel, the second belt wheel is in transmission connection with the second ratchet wheel through the second transmission belt, a fourth rotating shaft extending downwards is fixedly arranged at the center position of the second belt wheel, a first working cavity is arranged below the fourth rotating shaft, a first bevel gear is arranged inside the first working cavity, and the first bevel gear is fixedly connected with the fourth rotating shaft, the rear of the first bevel gear is meshed with a second bevel gear, a fifth rotating shaft extending backwards is fixedly arranged at the center of the second bevel gear, a fourth rotating cavity is arranged behind the fifth rotating shaft, and a third belt wheel is arranged in the fourth rotating cavity.
Further, the third belt wheel with the fifth axis of rotation links firmly, the third belt wheel goes up to slide and is equipped with the third drive belt, third belt wheel left and right sides symmetrical arrangement has the same transmission structure, to being located the right side the transmission structure, the transmission structure includes the fourth belt wheel, fourth belt wheel central point puts and has set firmly the sleeve that extends backward, sleeve central point puts the fixed sixth axis of rotation that extends around being equipped with, fourth belt wheel rear is equipped with the fifth rotation chamber, fifth rotation intracavity portion is equipped with the fifth belt wheel, the fifth belt wheel with the sleeve links firmly, fourth belt wheel the place ahead is equipped with the weather shield, the weather shield with sixth axis of rotation front end links firmly.
Furthermore, a sixth belt wheel is arranged on the left side of the fifth belt wheel, a fourth transmission belt is arranged on the sixth belt wheel in a sliding mode, the fifth belt wheel is connected with the sixth belt wheel through the fourth transmission belt in a transmission mode, a seventh rotating shaft extending backwards is fixedly arranged at the center of the sixth belt wheel, a second working cavity is arranged behind the seventh rotating shaft, a seventh belt wheel is arranged inside the second working cavity, the seventh belt wheel is fixedly connected with the seventh rotating shaft, and a fifth transmission belt is arranged on the seventh belt wheel in a sliding mode.
Furthermore, an eighth belt wheel is arranged above the seventh belt wheel, the eighth belt wheel is in transmission connection with the seventh belt wheel through a fifth transmission belt, an eighth rotating shaft extending forwards is fixedly arranged at the center of the eighth belt wheel, a third ratchet wheel is fixedly arranged in front of the eighth rotating shaft, a ninth rotating shaft extending forwards and tightly is fixedly arranged in front of the third ratchet wheel, a second motor is arranged in front of the ninth rotating shaft, the ninth rotating shaft is in power connection with the second motor, the ninth rotating shaft penetrates through the second motor, a fourth ratchet wheel is arranged in front of the second motor, and the fourth ratchet wheel is fixedly connected with the ninth rotating shaft.
Furthermore, a tenth rotating shaft extending forwards is fixedly arranged in front of the fourth ratchet wheel, a ninth belt wheel is arranged in front of the tenth rotating shaft, the ninth belt wheel is fixedly connected with the tenth rotating shaft, a sixth transmission belt is arranged on the tenth rotating shaft in a sliding manner, tenth belt wheels are symmetrically arranged on the ninth belt wheel in the left-right direction, the tenth belt wheel is in transmission connection with the ninth belt wheel through the sixth transmission belt, and an eleventh rotating shaft extending forwards is fixedly arranged in the center of the tenth belt wheel.
Further, eleventh axis of rotation the place ahead is equipped with the sixth and rotates the chamber, the sixth rotates intracavity portion and is equipped with first gear, first gear with the eleventh axis of rotation links firmly, the meshing of first gear left side is equipped with the second gear, second gear central point puts and has set firmly the twelfth axis of rotation that extends forward, the twelfth axis of rotation left side slides and is equipped with downwardly extending's carriage release lever, the carriage release lever below is equipped with the cavity, the inside pappus brush that is equipped with of cavity, the pappus brush with the carriage release lever lower extreme links firmly, the pappus brush rear is equipped with the display screen, the display screen with the cavity right wall links firmly, the display screen with the pappus brush butt.
The liftable outdoor billboard with the rain shielding function has the beneficial effects that the structure is simple, the functions of protecting an advertising screen and cleaning dust in rainy days can be realized, the shielding plate can be automatically lowered in rainy days, the screen is prevented from contacting with water, the screen is prevented from being polluted by rainwater to cause rapid oxidation of the surface of the screen, and meanwhile, the billboard can be lifted, so that the visible range of the billboard is enlarged.
Detailed Description
The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: 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.
With reference to fig. 1-5, the lower support column 10 includes a lower support column 10, a first rotation cavity 74 is disposed inside the lower support column 10, a first rotation shaft 11 is disposed inside the first rotation cavity 74, a pin 13 is fixedly disposed on a left wall surface of the first rotation cavity 74, the pin 13 is slidably connected to the first rotation shaft 11, a positioning rod 12 extending upward is disposed on a left side of the first rotation cavity 74, the positioning rod 12 is slidably connected to the lower support column 10, an upward extending second rotation shaft 20 is fixedly disposed above the first rotation shaft 11, a main box 24 is disposed above the lower support column 10, a second rotation cavity 23 is disposed inside the main box 24, a first pulley 21 is disposed inside the second rotation cavity 23, the first pulley 21 is fixedly connected to the second rotation shaft 20, the main box 24 is fixedly connected to the positioning rod 12, a first transmission belt 22 is slidably disposed on the first pulley 21, a first ratchet wheel 68 is arranged behind the first belt wheel 21, the first ratchet wheel 68 is in transmission connection with the first belt wheel 21 through the first transmission belt 22, a third rotating shaft 67 extending downwards is fixedly arranged below the first ratchet wheel 68, a first motor 69 is arranged below the third rotating shaft 67 in power connection, a third rotating cavity 60 is arranged below the first motor 69, the third rotating shaft 67 extends downwards to penetrate through the first motor 69, a second ratchet wheel 66 is arranged in the third rotating cavity 60, the second ratchet wheel 66 is fixedly connected with the third rotating shaft 67, a second transmission belt 61 is arranged on the second ratchet wheel 66 in a sliding manner, a second belt wheel 59 is arranged behind the second ratchet wheel 66, the second belt wheel 59 is in transmission connection with the second ratchet wheel 66 through the second transmission belt 61, and a fourth rotating shaft 58 extending downwards is fixedly arranged at the center position of the second belt wheel 59, a first working cavity 56 is arranged below the fourth rotating shaft 58, a first helical gear 57 is arranged in the first working cavity 56, the first helical gear 57 is fixedly connected with the fourth rotating shaft 58, a second helical gear 55 is meshed behind the first helical gear 57, a fifth rotating shaft 46 extending backwards is fixedly arranged at the center of the second helical gear 55, a fourth rotating cavity 53 is arranged behind the fifth rotating shaft 46, and a third belt wheel 47 is arranged in the fourth rotating cavity 53.
Beneficially, the third pulley 47 is fixedly connected to the fifth rotating shaft 46, a third transmission belt 54 is slidably disposed on the third pulley 47, the same transmission structures are symmetrically disposed on the left and right sides of the third pulley 47, the transmission structure on the right side includes a fourth pulley 70, a sleeve 73 extending backward is fixedly disposed at the center position of the fourth pulley 70, a sixth rotating shaft 71 extending forward and backward is fixedly disposed at the center position of the sleeve 73, a fifth rotating cavity 48 is disposed behind the fourth pulley 70, a fifth pulley 72 is disposed inside the fifth rotating cavity 48, the fifth pulley 72 is fixedly connected to the sleeve 73, a rain baffle 14 is disposed in front of the fourth pulley 70, and the rain baffle 14 is fixedly connected to the front end of the sixth rotating shaft 71.
Advantageously, a sixth pulley 51 is disposed on the left side of the fifth pulley 72, a fourth transmission belt 52 is slidably disposed on the sixth pulley 51, the fifth pulley 72 is in transmission connection with the sixth pulley 51 through the fourth transmission belt 52, a seventh rotating shaft 49 extending backward is fixedly disposed at the center of the sixth pulley 51, a second working chamber 29 is disposed behind the seventh rotating shaft 49, a seventh pulley 50 is disposed inside the second working chamber 29, the seventh pulley 50 is fixedly connected with the seventh rotating shaft 49, and a fifth transmission belt 30 is slidably disposed on the seventh pulley 50.
Advantageously, an eighth pulley 31 is disposed above the seventh pulley 50, the eighth pulley 31 is in transmission connection with the seventh pulley 50 through the fifth transmission belt 30, an eighth rotating shaft 32 extending forward is fixedly disposed at the center of the eighth pulley 31, a third ratchet 33 is fixedly disposed in front of the eighth rotating shaft 32, a ninth rotating shaft 34 extending forward and tightly is fixedly disposed in front of the third ratchet 33, a second motor 35 is disposed in front of the ninth rotating shaft 34, the ninth rotating shaft 34 is in power connection with the second motor 35, the ninth rotating shaft 34 penetrates through the second motor 35, a fourth ratchet 36 is disposed in front of the second motor 35, and the fourth ratchet 36 is fixedly connected with the ninth rotating shaft 34.
Advantageously, a tenth rotating shaft 38 extending forwards is fixed in front of the fourth ratchet wheel 36, a ninth pulley 37 is arranged in front of the tenth rotating shaft 38, the ninth pulley 37 is fixedly connected with the tenth rotating shaft 38, a sixth transmission belt 40 is slidably arranged on the tenth rotating shaft 38, tenth pulleys 43 are symmetrically arranged on the ninth pulley 37, the tenth pulleys 43 and the ninth pulley 37 are in transmission connection through the sixth transmission belt 40, and an eleventh rotating shaft 45 extending forwards is fixed at the center position of the tenth pulleys 43.
Beneficially, a sixth rotating cavity 41 is arranged in front of the eleventh rotating shaft 45, a first gear 44 is arranged inside the sixth rotating cavity 41, the first gear 44 is fixedly connected with the eleventh rotating shaft 45, a second gear 42 is engaged with the left side of the first gear 44, a twelfth rotating shaft 25 extending forwards is fixedly arranged at the central position of the second gear 42, a moving rod 15 extending downwards is slidably arranged on the left side of the twelfth rotating shaft 25, a cavity 17 is arranged below the moving rod 15, a soft brush 16 is arranged inside the cavity 17, the soft brush 16 is fixedly connected with the lower end of the moving rod 15, a display screen 18 is arranged behind the soft brush 16, the display screen 18 is fixedly connected with the right wall surface of the cavity 17, and the display screen 18 is abutted to the soft brush 16.
The fixing and connecting method in this embodiment includes, but is not limited to, bolting, welding, and the like.
Sequence of mechanical actions of the whole device:
1. when the invention is at rest, the rain shield 14 is in a horizontal state, the first rotating shaft 11 is positioned at the lowest part, the moving rod 15 is positioned at the lowest part, when the invention starts to work, in order to prevent the display screen 18 from being wetted by water in rainy days, the first motor 69 is started to rotate in the positive direction, the first motor 69 rotates in the positive direction to drive the third rotating shaft 67 to rotate in the positive direction, the third rotating shaft 67 drives the second ratchet wheel 66 to rotate in the positive direction, the second ratchet wheel 66 drives the second belt wheel 59 to rotate, the second belt wheel 59 drives the fourth rotating shaft 58 to rotate, the fourth rotating shaft 58 drives the first helical gear 57 to rotate, the first helical gear 57 drives the second helical gear 55 to rotate, the second helical gear 55 drives the fifth rotating shaft 46 to rotate, the fifth rotating shaft 46 drives the third belt wheel 47 to rotate, the third belt wheel 47 drives the fourth belt wheel 70 to rotate, the fourth belt wheel 70 drives the sleeve 73 to rotate, the sleeve 73 drives the, the rain shield 14 is rotated to be in a vertical state, so that the communication between the cavity 17 and the outside is blocked, rainwater is prevented from falling into the cavity 17, the contact between the rainwater and the display screen 18 is avoided, and the effect of protecting the display screen 18 is achieved;
2. when the rain shield 14 needs to be reset, the second motor 35 is started to rotate in the positive direction, the second motor 35 drives the eighth rotating shaft 32 to rotate in the positive direction, the eighth rotating shaft 32 drives the eighth belt pulley 31 to rotate, the eighth belt pulley 31 drives the seventh belt pulley 50 to rotate, the seventh belt pulley 50 drives the seventh rotating shaft 49 to rotate, the seventh rotating shaft 49 drives the sixth belt pulley 51 to rotate, the sixth belt pulley 51 drives the fifth belt pulley 72 to rotate, the fifth belt pulley 72 drives the sleeve 73 to rotate, the sleeve 73 drives the sixth rotating shaft 71 to rotate, the sixth rotating shaft 71 drives the rain shield 14 to rotate in the counterclockwise direction, and when the rain shield 14 needs to be reset, the second motor 35 is stopped;
3. when dust falls on the outer surface of the display screen 18, the second motor 35 is started to rotate reversely in order to remove the dust, the second motor 35 rotates reversely to drive the ninth rotating shaft 34 to rotate reversely, the ninth rotating shaft 34 drives the fourth ratchet wheel 36 to rotate reversely, the fourth ratchet wheel 36 drives the ninth belt wheel 37 to rotate, the ninth belt wheel 37 drives the tenth belt wheel 43 to rotate, the tenth belt wheel 43 drives the eleventh rotating shaft 45 to rotate, the eleventh rotating shaft 45 drives the first gear 44 to rotate, and the first gear 44 drives the second gear 42 to rotate;
4. the second gear 42 drives the twelfth rotating shaft 25 to rotate, the twelfth rotating shaft 25 drives the moving rod 15 to reciprocate back and forth, the twelfth rotating shaft 25 firstly drives the moving rod 15 to move forward, the moving rod 15 drives the soft brush 16 to move, when the soft brush 16 moves, the soft brush 16 is abutted against the display screen 18, and then the soft brush 16 has the function of wiping the surface of the display screen 18, so that the function of removing dust on the surface of the display screen 18 is realized;
5. when the main box body 24 needs to be lifted, the first motor 69 is started, the first motor 6 rotates reversely to drive the third rotating shaft 67 to rotate reversely, the third rotating shaft 67 rotates reversely to drive the first ratchet wheel 68 to rotate reversely, the first ratchet wheel 68 drives the first belt wheel 21 to rotate, the first belt wheel 21 drives the second rotating shaft 20 to rotate, the second rotating shaft 20 drives the first rotating shaft 11 to rotate, when the first rotating shaft 11 rotates, under the action of the pin 13, the first rotating shaft 11 reciprocates up and down, the first rotating shaft 11 ascends first, the function of lifting the main box body 24 is achieved, the main box body 24 also ascends to drive the display screen 18, and the display screen 18 can be seen by more people.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.