1. The electronic advertising board with high reliability comprises a main body (2) and two supporting rods (1), wherein the two supporting rods (1) are respectively connected with two sides of the main body (2), and the main body (2) is internally provided with a PLC (programmable logic controller). the electronic advertising board is characterized by further comprising a power generation mechanism and a heat dissipation mechanism, wherein the power generation mechanism is arranged above the main body (2), the heat dissipation mechanism is arranged inside the main body (2), and the power generation mechanism is connected with the heat dissipation mechanism;

the power generation mechanism comprises a wind direction sensor (4), a fixed pipe (3), a filter screen (5), a fixed plate, a power generation assembly, a rotating assembly and a dust removal assembly, wherein the wind direction sensor (4) is arranged on the fixed pipe (3), the power generation assembly is arranged in the fixed pipe (3), the rotating assembly is arranged above the main body (2), the rotating assembly is connected with the fixed pipe (3), the filter screen (5) is connected with the inner wall of one end of the fixed pipe (3), the fixed plate is connected with the inner wall of the other end of the fixed pipe (3), the fixed plate is connected with a heat dissipation mechanism, the dust removal assembly is arranged inside one end, close to the filter screen (5), of the fixed pipe (3), and the wind direction sensor (4) is electrically connected with the PLC;

the power generation assembly comprises a power generator (8), a power generation shaft (7), two first bearings and a plurality of rotating plates (6), the first bearings are connected with the inner wall of the fixed pipe (3), a round hole is formed in the fixed pipe (3), the power generator (8) is arranged above the main body (2), the power generator (8) is connected with one end of the power generation shaft (7), the other end of the power generation shaft (7) penetrates through the round hole to be arranged inside the fixed pipe (3), the periphery of the power generation shaft (7) is connected with the inner ring of the first bearings, the rotating plates (6) are arranged inside the fixed pipe (3), and the rotating plates (6) are circumferentially and uniformly arranged on the periphery of the power generation shaft (7) by taking the axis of the power generation shaft (7) as a center;

the heat dissipation mechanism comprises a fixing box (19), an air ventilation assembly and two heat dissipation assemblies, the fixing box (19) is annular, the fixing box (19) is arranged above the main body (2), the fixing box (19) and the power generation shaft (7) are coaxially arranged, an annular hole is formed above the fixing box (19), the fixing box (19) is connected with the fixing pipe (3) through the air ventilation assembly, the two heat dissipation assemblies are symmetrically arranged relative to the axis of the fixing box (19), and the heat dissipation assemblies are connected with the fixing box (19);

the radiating assembly comprises a radiating pipe (26), a connecting gear (25), two second bearings and a plurality of radiating fins (27), wherein two first through holes are formed in the upper portion and the lower portion of the main body (2), two first through holes are formed in the two ends of the radiating pipe (26) respectively, the radiating pipe (26) is connected with the inner wall of the first through holes in a sealing and sliding mode, the two second bearings are arranged at the top and the bottom of the main body (2) respectively, the periphery of the radiating pipe (26) is connected with the inner ring of the second bearings, two second through holes are formed in the lower portion of the fixing box (19), one ends of the two radiating pipes (26) are arranged in the fixing box (19) through the two second through holes respectively, the connecting gear (25) is connected with one end of the radiating pipe (26), the connecting gear (25) is connected with the ventilating assembly, and the radiating fins (27) are arranged in the main body (2), the radiating fins (27) are circumferentially and spirally arranged on the periphery of the radiating pipe (26).

2. The electronic billboard with high reliability according to claim 1, wherein the rotating assembly comprises a driving motor (11), a first gear (10) and a second gear (9), the driving motor (11) is arranged above the main body (2), the driving motor (11) is in transmission connection with the first gear (10), the second gear (9) is arranged on the fixed tube (3), a through hole is arranged on the second gear (9), the power generation shaft (7) passes through the through hole, the power generation shaft (7) is arranged coaxially with the second gear (9), and the driving motor (11) is electrically connected with the PLC.

3. The electronic advertising board with high reliability as claimed in claim 1, wherein the dust removing assembly comprises a ball screw pair (16), a hinged rod (15), a driving block (14), a first spring (13), two dust removing units and two third bearings, the third bearings are connected with the inner wall of the fixed pipe (3), two ends of a screw rod of the ball screw pair (16) are respectively connected with inner rings of the two third bearings, one end of the hinged rod (15) is hinged with a nut of the ball screw pair (16), a sliding groove is arranged on the inner wall of the fixed pipe (3), the driving block (14) is arranged inside the sliding groove, the driving block (14) is connected with the sliding groove in a sliding manner, the other end of the hinged rod (15) is hinged with the upper part of the driving block (14), two ends of the first spring (13) are respectively connected with the inner wall of the groove far away from one end of the filter screen (5) and one side of the driving block (14) far away from the filter screen (5), the two dust removal units are respectively arranged at two ends of a screw rod of the ball screw pair (16).

4. The electronic billboard with high reliability according to claim 3, wherein the dust removing unit comprises a plurality of dust removing rods (17), one end of each dust removing rod (17) is connected with the screw rod of the ball screw pair (16), and the dust removing rods (17) are uniformly arranged on the periphery of the screw rod of the ball screw pair (16) in the circumferential direction.

5. The electronic billboard with high reliability according to claim 1, wherein the ventilation assembly comprises a ventilation pipe (18), a connection ring (21), a sealing ring (20), a rotary ring (24) and two limiting units, the fixing plate is provided with a first small hole, the periphery of one end of the ventilation pipe (18) is connected with the inner wall of the first small hole, the ventilation pipe (18) is communicated with the fixing pipe (3), the other end of the ventilation pipe (18) passes through the strip-shaped hole and is arranged inside the fixing box (19), the connection ring (21) and the sealing ring (20) are both arranged coaxially with the fixing box (19), the sealing ring (20) is arranged above the connection ring (21), the upper side of the sealing ring (20) abuts against the top inside the fixing box (19), the connection ring (21) is provided with a second small hole, and the other end of the ventilation pipe (18) is connected with the inner wall of the second small hole, the inside intercommunication of breather pipe (18) and fixed box (19), change (24) and the below of go-between (21) are connected, change (24) and the coaxial setting of go-between (21), the interior circumference of change (24) evenly is equipped with the dogtooth, dogtooth and coupling gear (25) meshing, the axis symmetry setting about go-between (21) of two spacing units, spacing unit is connected with the inner circle of go-between (21).

6. The electronic advertising board with high reliability as claimed in claim 5, wherein the limiting unit comprises a limiting rod (22) and a ball (23), one end of the limiting rod (22) is connected with the inner ring of the connecting ring (21), an annular groove is arranged on the inner wall of the fixing box (19), the other end of the limiting rod (22) is arranged inside the annular groove, a notch is arranged on the other end of the limiting rod (22), the center of the ball (23) is arranged inside the notch, and the ball (23) abuts against the inner wall of the annular groove.

7. The electronic billboard with high reliability according to claim 1, wherein the power generation mechanism further comprises a guard ring (12), the guard ring (12) is arranged above the main body (2), the guard ring (12) is arranged coaxially with the power generation shaft (7), and the upper side of the guard ring (12) is connected with the periphery of the fixed tube (3).

Background

The electronic billboard displays the advertisement content through an electronic information technology, is more convenient to replace, and is provided with a light source without light supplement, so that the electronic billboard is widely applied.

The current electronic billboard during operation generally relies on city electric wire netting power supply, in case the phenomenon of having a power failure appears, the work of advertising can't normally be carried out to current electronic billboard then, thereby the practicality of current electronic billboard has been reduced, moreover, when current electronic billboard used, the inside electronic component of main part can produce a large amount of heats, if not dispel the heat in time, lead to the inside temperature of main part to rise easily, thereby produce the influence to electronic component's life easily, thereby the reliability of current electronic billboard has been reduced.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the electronic billboard with high reliability is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: an electronic billboard with high reliability comprises a main body and two supporting rods, wherein the two supporting rods are respectively connected with two sides of the main body, a PLC is arranged inside the main body, the electronic billboard further comprises a power generation mechanism and a heat dissipation mechanism, the power generation mechanism is arranged above the main body, the heat dissipation mechanism is arranged inside the main body, and the power generation mechanism is connected with the heat dissipation mechanism;

the power generation mechanism comprises a wind direction sensor, a fixed pipe, a filter screen, a fixed plate, a power generation assembly, a rotating assembly and a dust removal assembly, wherein the wind direction sensor is arranged on the fixed pipe, the power generation assembly is arranged in the fixed pipe, the rotating assembly is arranged above the main body, the rotating assembly is connected with the fixed pipe, the filter screen is connected with the inner wall of one end of the fixed pipe, the fixed plate is connected with the inner wall of the other end of the fixed pipe, the fixed plate is connected with the heat dissipation mechanism, the dust removal assembly is arranged inside one end, close to the filter screen, of the fixed pipe, and the wind direction sensor is electrically connected with the PLC;

the power generation assembly comprises a power generator, a power generation shaft, two first bearings and a plurality of rotating plates, wherein the first bearings are connected with the inner wall of a fixed pipe, a round hole is formed in the fixed pipe, the power generator is arranged above a main body, the power generator is connected with one end of the power generation shaft, the other end of the power generation shaft penetrates through the round hole and is arranged inside the fixed pipe, the periphery of the power generation shaft is connected with an inner ring of the first bearings, the rotating plates are arranged inside the fixed pipe, and the rotating plates are circumferentially and uniformly arranged on the periphery of the power generation shaft by taking the axis of the power generation shaft as a center;

the heat dissipation mechanism comprises a fixing box, an air ventilation assembly and two heat dissipation assemblies, wherein the fixing box is annular, the fixing box is arranged above the main body and is coaxially arranged with the power generation shaft, an annular hole is formed above the fixing box, the fixing box is connected with the fixing pipe through the air ventilation assembly, the two heat dissipation assemblies are symmetrically arranged relative to the axis of the fixing box, and the heat dissipation assemblies are connected with the fixing box;

the utility model discloses a cooling device, including radiating assembly, radiating pipe, connecting gear, two second bearings and a plurality of fin, the top and the below of main part all are equipped with two first through-holes, two first through-holes are passed respectively at the both ends of radiating pipe, the sealed sliding connection of inner wall of radiating pipe and first through-hole, two second bearings set up top and bottom in the main part respectively, the periphery of radiating pipe and the inner circle of second bearing are connected, the below of fixed box is equipped with two second through-holes, and the one end of two radiating pipes passes two second through-holes respectively and sets up the inside at fixed box, connecting gear is connected with the one end of radiating pipe, connecting gear is connected with the subassembly of ventilating, the fin sets up the inside at the main part, fin circumference spiral setting is in the periphery of radiating pipe.

Preferably, in order to drive the fixed pipe to rotate, the rotating assembly comprises a driving motor, a first gear and a second gear, the driving motor is arranged above the main body and is in transmission connection with the first gear, the second gear is arranged on the fixed pipe, a through hole is formed in the second gear, the power generation shaft penetrates through the through hole, the power generation shaft and the second gear are coaxially arranged, and the driving motor is electrically connected with the PLC.

As preferred, in order to realize the function of dust removal, the subassembly that removes dust includes ball screw pair, hinged rod, drive block, first spring, two dust removal units and two third bearings, the inner wall connection of third bearing and fixed pipe, the both ends of the screw rod of ball screw pair are connected with the inner circle of two third bearings respectively, the one end of hinged rod is articulated with ball screw pair's nut, be equipped with the spout on the inner wall of fixed pipe, the drive block sets up the inside at the spout, drive block and spout sliding connection, the other end of hinged rod is articulated with the top of drive block, the both ends of first spring are connected with the inner wall of the one end of keeping away from the filter screen of recess and the one side of keeping away from the filter screen of drive block respectively, and two dust removal units set up the both ends at ball screw pair's screw rod respectively.

Preferably, in order to knock the filter screen, the dust removal unit comprises a plurality of dust removal rods, one ends of the dust removal rods are connected with the screw rod of the ball screw pair, and the dust removal rods are circumferentially and uniformly arranged on the periphery of the screw rod of the ball screw pair.

Preferably, in order to realize the circulation of air, the ventilation assembly comprises a ventilation pipe, a connection ring, a sealing ring, a swivel and two limiting units, a first small hole is formed in the fixing plate, the periphery of one end of the ventilation pipe is connected with the inner wall of the first small hole, the ventilation pipe is communicated with the fixing pipe, the other end of the ventilation pipe penetrates through the strip-shaped hole and is arranged in the fixing box, the connection ring and the sealing ring are coaxially arranged with the fixing box, the sealing ring is arranged above the connection ring, the top of the sealing ring is abutted against the top in the fixing box, a second small hole is formed in the connection ring, the other end of the ventilation pipe is connected with the inner wall of the second small hole, the ventilation pipe is communicated with the inside of the fixing box, the swivel is connected with the lower part of the connection ring, the swivel is coaxially arranged with the connection ring, and a convex tooth is uniformly arranged on the circumferential direction of the swivel, the convex teeth are meshed with the connecting gear, the two limiting units are symmetrically arranged relative to the axis of the connecting ring, and the limiting units are connected with the inner ring of the connecting ring.

Preferably, in order to limit the rotation direction of the connection ring, the limiting unit includes a limiting rod and a ball, one end of the limiting rod is connected with the inner ring of the connection ring, an annular groove is formed in the inner wall of the fixing box, the other end of the limiting rod is arranged inside the annular groove, a notch is formed in the other end of the limiting rod, the center of the ball is arranged inside the notch, and the ball abuts against the inner wall of the annular groove.

Preferably, in order to realize the dustproof function, the power generation mechanism further comprises a protection ring, the protection ring is arranged above the main body, the protection ring and the power generation shaft are coaxially arranged, and the upper portion of the protection ring is connected with the periphery of the fixed pipe.

The invention has the advantages that the electronic billboard with high reliability realizes the function of wind power generation through the power generation mechanism, provides electric energy for the main body to work, can still supply power to the main body when the urban power grid is powered off, thereby not influencing the advertising effect and improving the practicability of the equipment, compared with the existing power generation mechanism, the power generation mechanism passes through the obstruction of the filter screen, so that dust cannot be accumulated on the rotating plate, thereby not increasing the load of the rotating plate and preventing the rotating speed of the rotating plate from being influenced, simultaneously, the dust adhered on the filter screen can be shaken off, the filter screen is prevented from being blocked by the dust, the circulation of air is prevented from being influenced, thereby the wind power generation work is prevented from being influenced, thereby the reliability of the equipment is improved, the function of heat dissipation to the inner part of the main body is realized through the heat dissipation mechanism, the damage caused by overheating of the inner part of the main body is prevented, and the work of the equipment is not influenced, thereby the reliability of equipment has been improved, compares with current heat dissipation mechanism, and this heat dissipation mechanism and power generation mechanism link gear as an organic whole can carry out the work of stirring to the inside air of main part to accelerate the flow speed of the inside air of main part, thereby can promote radiating effect.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of a highly reliable electronic billboard of the invention;

FIG. 2 is a schematic structural diagram of a power generation mechanism of the highly reliable electronic billboard of the invention;

FIG. 3 is a schematic structural diagram of a heat dissipation mechanism of the highly reliable electronic billboard of the invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

in the figure: 1. the wind power generation device comprises a support rod, a main body, a fixing pipe, a wind direction sensor, a filter screen, a rotating plate, a power generation shaft, a generator, a second gear, a first gear, a driving motor, a protective ring, a spring, a driving block, a hinge rod, a ball screw pair, a dust removal rod, a vent pipe, a fixing box, a sealing ring, a connecting ring, a limiting rod, balls, a rotating ring, a connecting gear, a radiating pipe and a radiating fin, wherein the main body is 2, the fixing pipe is 3, the wind direction sensor is 4, the filter screen is 5, the rotating plate is 6, the power generation shaft is 7, the driving block is 14, the hinge rod is.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1, the electronic billboard with high reliability comprises a main body 2 and two support rods 1, wherein the two support rods 1 are respectively connected with two sides of the main body 2, a PLC is arranged inside the main body 2, the electronic billboard further comprises a power generation mechanism and a heat dissipation mechanism, the power generation mechanism is arranged above the main body 2, the heat dissipation mechanism is arranged inside the main body 2, and the power generation mechanism is connected with the heat dissipation mechanism;

PLCs, i.e., programmable logic controllers, are generally used for the processing of data and the receipt and output of instructions for central control.

This electronic billboard that reliability is high passes through power generation mechanism, realizes wind power generation's function, provides the electric energy for 2 works of main part, can still can give 2 power supplies of main part when the urban power network outage to can not exert an influence to the advertising effect, thereby the practicality of equipment has been improved, through heat dissipation mechanism, realized giving 2 inside radiating functions of main part, prevent 2 inside overheated and damage of main part, thereby can not influence equipment work, thereby the reliability of equipment has been improved.

As shown in fig. 2, the power generation mechanism includes a wind direction sensor 4, a fixed pipe 3, a filter screen 5, a fixed plate, a power generation assembly, a rotation assembly and a dust removal assembly, the wind direction sensor 4 is arranged on the fixed pipe 3, the power generation assembly is arranged in the fixed pipe 3, the rotation assembly is arranged above the main body 2, the rotation assembly is connected with the fixed pipe 3, the filter screen 5 is connected with the inner wall of one end of the fixed pipe 3, the fixed plate is connected with the inner wall of the other end of the fixed pipe 3, the fixed plate is connected with the heat dissipation mechanism, the dust removal assembly is arranged inside one end of the fixed pipe 3 close to the filter screen 5, and the wind direction sensor 4 is electrically connected with the PLC;

the power generation assembly comprises a power generator 8, a power generation shaft 7, two first bearings and a plurality of rotating plates 6, the first bearings are connected with the inner wall of the fixed pipe 3, a round hole is formed in the fixed pipe 3, the power generator 8 is arranged above the main body 2, the power generator 8 is connected with one end of the power generation shaft 7, the other end of the power generation shaft 7 penetrates through the round hole to be arranged inside the fixed pipe 3, the periphery of the power generation shaft 7 is connected with the inner ring of the first bearings, the rotating plates 6 are arranged inside the fixed pipe 3, and the rotating plates 6 are circumferentially and uniformly arranged on the periphery of the power generation shaft 7 by taking the axis of the power generation shaft 7 as a center;

the wind direction sensor 4 detects the wind direction, when the direction is detected, a signal is sent to the PLC, the PLC controls the rotating assembly to work, so that the fixed pipe 3 can be driven to rotate, the filter screen 5 can face the wind direction, air can conveniently enter the fixed pipe 3 after impurity removal through the filter screen 5, the rotating plate 6 can be driven to rotate, the power generation shaft 7 can be driven to rotate, the generator 8 can work, the function of wind power generation can be realized, electric energy can be provided for the main body 2 to work, power can still be supplied to the main body 2 when the urban power grid is powered off, the advertising effect cannot be influenced, the practicability of the equipment is improved, when the fixed pipe 3 rotates, the dust removal assembly can be driven to work through the action of centrifugal force, the filter screen 5 can be intermittently knocked, the filter screen 5 shakes, and dust adhered to the filter screen 5 can be shaken off, prevent that the dust from blockking up filter screen 5, influence the circulation of air, thereby prevent to produce the influence to wind power generation work, thereby the reliability of equipment has been improved, block through filter screen 5, make the dust can not gather on changeing board 6, thereby can not increase changeing the load of board 6, prevent to produce the influence to changeing the rotational speed of board 6, thereby the practicality of equipment has been improved, the while is sheltered from changeing board 6 through the fixed pipe 3 that sets up, can realize protecting changeing the function of board 6, the probability that changeing board 6 damaged has been reduced, prevent to change board 6 by the rainwater corruption, thereby the life of changeing board 6 has been prolonged, the practicality is higher.

As shown in fig. 3-4, the heat dissipation mechanism includes a fixing box 19, an air vent assembly and two heat dissipation assemblies, the fixing box 19 is annular, the fixing box 19 is disposed above the main body 2, the fixing box 19 is disposed coaxially with the power generation shaft 7, an annular hole is disposed above the fixing box 19, the fixing box 19 is connected to the fixing pipe 3 through the air vent assembly, the two heat dissipation assemblies are symmetrically disposed about an axis of the fixing box 19, and the heat dissipation assemblies are connected to the fixing box 19;

the heat radiating assembly includes a heat radiating pipe 26, a connecting gear 25, two second bearings and a plurality of heat radiating fins 27, two first through holes are formed at the upper and lower portions of the main body 2, both ends of the radiating pipe 26 pass through the two first through holes, the radiating pipe 26 is hermetically and slidably connected to the inner wall of the first through hole, two second bearings are respectively provided at the top and bottom in the main body 2, the periphery of the radiating pipe 26 is connected with the inner ring of the second bearing, two second through holes are arranged below the fixed box 19, one ends of the two radiating pipes 26 respectively penetrate through the two second through holes to be arranged inside the fixed box 19, the connection gear 25 is connected with one end of the radiating pipe 26, the connection gear 25 is connected with the ventilating assembly, the radiating fins 27 are provided inside the body 2, and the radiating fins 27 are circumferentially spirally provided on the outer circumference of the radiating pipe 26.

When air enters the fixed pipe 3, the air can enter the fixed box 19 through the ventilation component, so that the air can be discharged through the radiating pipe 26, and the heat inside the main body 2 can be absorbed and taken away through the air flowing in the radiating pipe 26, thereby realizing the function of radiating the heat inside the main body 2, preventing the damage of the overheat inside of the main body 2, and not influencing the equipment operation, thereby improving the reliability of the equipment, increasing the contact area with the air inside the main body 2 through the arranged radiating fins 27, thereby improving the radiating effect, when the fixed pipe 3 rotates, the connecting gear 25 can be driven to rotate through the ventilation component, thereby driving the radiating pipe 26 to rotate, and enabling the radiating fins 27 to rotate, thereby stirring the air inside the main body 2, and accelerating the flowing speed of the air inside the main body 2, thereby improving the heat dissipation effect.

Preferably, in order to drive the fixed pipe 3 to rotate, the rotating assembly comprises a driving motor 11, a first gear 10 and a second gear 9, the driving motor 11 is arranged above the main body 2, the driving motor 11 is in transmission connection with the first gear 10, the second gear 9 is arranged on the fixed pipe 3, a through hole is formed in the second gear 9, the power generation shaft 7 penetrates through the through hole, the power generation shaft 7 and the second gear 9 are coaxially arranged, and the driving motor 11 is electrically connected with the PLC.

Preferably, in order to realize the dust removing function, the dust removing assembly comprises a ball screw pair 16, a hinge rod 15, a driving block 14, a first spring 13, two dust removing units and two third bearings, the third bearings are connected with the inner wall of the fixed pipe 3, two ends of a screw rod of the ball screw pair 16 are respectively connected with the inner rings of the two third bearings, one end of the hinged rod 15 is hinged with a nut of the ball screw pair 16, the inner wall of the fixed tube 3 is provided with a chute, the driving block 14 is arranged inside the sliding groove, the driving block 14 is connected with the sliding groove in a sliding way, the other end of the hinged rod 15 is hinged to the upper portion of the driving block 14, two ends of the first spring 13 are connected with the inner wall of one end, far away from the filter screen 5, of the groove and one side, far away from the filter screen 5, of the driving block 14 respectively, and the two dust removal units are arranged at two ends of a screw rod of the ball screw assembly 16 respectively.

Preferably, in order to knock the filter screen 5, the dust removing unit comprises a plurality of dust removing rods 17, one end of each dust removing rod 17 is connected with the screw rod of the ball screw pair 16, and the dust removing rods 17 are circumferentially and uniformly arranged on the outer periphery of the screw rod of the ball screw pair 16.

The wind direction sensor 4 detects the wind direction, when the direction is detected, a signal is sent to the PLC, the PLC controls the driving motor 11 to be started to drive the first gear 10 to rotate, the second gear 9 rotates through the meshing of the first gear 10 and the second gear 9, so that the fixed pipe 3 can be driven to rotate, the filter screen 5 can face the wind direction, air can conveniently enter the inside of the fixed pipe 3 after impurity removal through the filter screen 5, the rotating plate 6 can be driven to rotate, the function of wind power generation is realized, when the fixed pipe 3 rotates, the driving block 14 can be driven to move towards the direction close to the filter screen 5 through the action of centrifugal force, the first spring 13 is stretched, the nut of the ball screw pair 16 is driven to move upwards through the hinge rod 15, the screw of the ball screw pair 16 rotates, the dust removal rod 17 can be driven to rotate, and the dust removal rod 17 can intermittently knock the filter screen 5, make filter screen 5 take place to rock to can shake off the dust of adhesion on filter screen 5, prevent that the dust from blockking up filter screen 5, influence the circulation of air, thereby prevent to produce the influence to wind power generation work, thereby improve the reliability of equipment.

Preferably, in order to realize the circulation of air, the ventilation assembly includes a ventilation pipe 18, a connection ring 21, a sealing ring 20, a swivel 24 and two limit units, the fixed plate is provided with a first small hole, the periphery of one end of the ventilation pipe 18 is connected with the inner wall of the first small hole, the ventilation pipe 18 is communicated with the fixed pipe 3, the other end of the ventilation pipe 18 passes through a strip-shaped hole and is arranged inside the fixed box 19, the connection ring 21 and the sealing ring 20 are coaxially arranged with the fixed box 19, the sealing ring 20 is arranged above the connection ring 21, the upper side of the sealing ring 20 is abutted against the top inside of the fixed box 19, the connection ring 21 is provided with a second small hole, the other end of the ventilation pipe 18 is connected with the inner wall of the second small hole, the ventilation pipe 18 is communicated with the inside of the fixed box 19, the swivel 24 is connected with the lower side of the connection ring 21, and the swivel 24 is coaxially arranged with the connection ring 21, the inner ring of the rotating ring 24 is uniformly provided with convex teeth in the circumferential direction, the convex teeth are meshed with the connecting gear 25, the two limiting units are symmetrically arranged relative to the axis of the connecting ring 21, and the limiting units are connected with the inner ring of the connecting ring 21.

When air enters the fixed pipe 3, the air can flow into the vent pipe 18 and then is guided into the fixed box 19, so that the air can be discharged through the heat dissipation pipe 26, and therefore, the air flowing in the heat dissipation pipe 26 can be absorbed and taken away by the heat inside the main body 2, thereby realizing the function of dissipating the heat inside the main body 2, when the fixed pipe 3 rotates, the vent pipe 18 can drive the connection ring 21 to rotate, so that the rotary ring 24 rotates, through the engagement of the convex teeth and the connection gear 25, the connection gear 25 rotates, so as to drive the heat dissipation pipe 26 to rotate, so that the heat dissipation fins 27 rotate, thereby stirring the air inside the main body 2, accelerating the flowing speed of the air inside the main body 2, thereby improving the heat dissipation effect, the connection ring 21 can also drive the sealing ring 20 to rotate when rotating, and the top in the fixed box 19 is abutted through the sealing ring 20, the function of the hole of the sealing ring 20 is realized, so that the air in the fixing box 19 can not be discharged through the hole of the ring, the heat radiation work can not be influenced, and the reliability of the equipment is improved.

Preferably, in order to limit the rotation direction of the connection ring 21, the limiting unit includes a limiting rod 22 and a ball 23, one end of the limiting rod 22 is connected to the inner ring of the connection ring 21, an annular groove is formed on the inner wall of the fixing box 19, the other end of the limiting rod 22 is disposed inside the annular groove, a notch is formed at the other end of the limiting rod 22, the center of the ball 23 is disposed inside the notch, and the ball 23 abuts against the inner wall of the annular groove.

When the connecting ring 21 rotates, the limiting rod 22 drives the ball 23 to rotate in the annular groove, so that the rotating direction of the connecting ring 21 is limited, the connecting ring 21 rotates stably, the rotating direction of the vent pipe 18 can be limited, the rotating direction of the fixed pipe 3 can be limited, the fixed pipe 3 rotates stably, and the stability of the device is improved.

Preferably, in order to achieve the function of dust prevention, the power generation mechanism further comprises a guard ring 12, the guard ring 12 is arranged above the main body 2, the guard ring 12 is arranged coaxially with the power generation shaft 7, and the upper part of the guard ring 12 is connected with the periphery of the fixed pipe 3.

Through the guard ring 12 that sets up, can shelter from first gear 10 and second gear 9 for dust in the air can not fall on first gear 10 and second gear 9, thereby can not cause the card of first gear 10 with second gear 9 to die, thereby has improved the smoothness nature when first gear 10 and second gear 9 rotate.

The wind direction sensor 4 detects the wind direction, when the direction is detected, a signal is sent to the PLC, the PLC controls the rotating assembly to work, so that the fixed pipe 3 can be driven to rotate, the filter screen 5 can face the wind direction, air can conveniently enter the fixed pipe 3 after impurity removal through the filter screen 5, the rotating plate 6 can be driven to rotate, the power generation shaft 7 can be driven to rotate, the generator 8 can work, the function of wind power generation can be realized, electric energy can be provided for the main body 2 to work, power can still be supplied to the main body 2 when the urban power grid is powered off, the advertising effect cannot be influenced, the practicability of the equipment is improved, when the fixed pipe 3 rotates, the dust removal assembly can be driven to work through the action of centrifugal force, the filter screen 5 can be intermittently knocked, the filter screen 5 shakes, and dust adhered to the filter screen 5 can be shaken off, prevent that the dust from blockking up filter screen 5, influence the circulation of air, thereby prevent to produce the influence to wind power generation work, thereby the reliability of equipment has been improved, block through filter screen 5, make the dust can not gather on changeing board 6, thereby can not increase changeing the load of board 6, prevent to produce the influence to changeing the rotational speed of board 6, thereby the practicality of equipment has been improved, the while is sheltered from changeing board 6 through the fixed pipe 3 that sets up, can realize protecting changeing the function of board 6, the probability that changeing board 6 damaged has been reduced, prevent to change board 6 by the rainwater corruption, thereby the life of changeing board 6 has been prolonged, the practicality is higher. When air enters the fixed pipe 3, the air can enter the fixed box 19 through the ventilation component, so that the air can be discharged through the radiating pipe 26, and the heat inside the main body 2 can be absorbed and taken away through the air flowing in the radiating pipe 26, thereby realizing the function of radiating the heat inside the main body 2, preventing the damage of the overheat inside of the main body 2, and not influencing the equipment operation, thereby improving the reliability of the equipment, increasing the contact area with the air inside the main body 2 through the arranged radiating fins 27, thereby improving the radiating effect, when the fixed pipe 3 rotates, the connecting gear 25 can be driven to rotate through the ventilation component, thereby driving the radiating pipe 26 to rotate, and enabling the radiating fins 27 to rotate, thereby stirring the air inside the main body 2, and accelerating the flowing speed of the air inside the main body 2, thereby improving the heat dissipation effect.

Compared with the prior art, the electronic billboard with high reliability realizes the function of wind power generation through the power generation mechanism, provides electric energy for the main body 2 to work, can still supply power to the main body 2 when the urban power grid is powered off, thereby not influencing the advertising effect and improving the practicability of the equipment, compared with the prior power generation mechanism, the power generation mechanism can prevent dust from accumulating on the rotating plate 6 through the obstruction of the filter screen 5, thereby not increasing the load of the rotating plate 6 and preventing the rotating speed of the rotating plate 6 from being influenced, and simultaneously can also shake off the dust adhered on the filter screen 5, prevent the filter screen 5 from being blocked by the dust and influencing the circulation of air, thereby preventing the wind power generation work from being influenced, thereby improving the reliability of the equipment, and realizing the function of heat dissipation for the inside of the main body 2 through the heat dissipation mechanism and preventing the inside of the main body 2 from being damaged due to overheating, thereby can not influence equipment work to improve the reliability of equipment, compare with current heat dissipation mechanism, this heat dissipation mechanism and power generation mechanism link gear as an organic whole can carry out the work of stirring to the inside air of main part 2, thereby accelerate the flow speed of the inside air of main part 2, thereby can promote radiating effect.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.