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 billboard with the windproof function is convenient for advertisement replacement.
The technical scheme adopted by the invention for solving the technical problems is as follows: a billboard convenient for advertisement replacement and having a windproof function comprises a bottom plate and a support, wherein the support is vertically arranged, the bottom plate is arranged above the support, the billboard further comprises a replacement mechanism, a windproof mechanism and a middle control mechanism, the replacement mechanism is arranged on the bottom plate, the bottom plate is connected with the upper end of the support through the windproof mechanism, the middle control mechanism is arranged inside the support, and the windproof mechanism and the replacement mechanism are both electrically connected with the middle control mechanism;
the replacing mechanism comprises a driving assembly, a lifting assembly, a clamping assembly and two retracting assemblies, wherein the driving assembly is arranged above the bottom plate, the lifting assembly is horizontally arranged, the driving assembly is connected with two ends of the lifting assembly, the two retracting assemblies are vertically arranged on two sides of the bottom plate respectively, and the clamping assembly is horizontally arranged below the bottom plate;
the lifting assembly comprises a central shaft, advertisement paper, two sleeves and two first gears, the central shaft is horizontally arranged, the two first gears are respectively arranged at two ends of the central shaft, the two ends of the central shaft respectively penetrate through the two sleeves, and the advertisement paper is wound on the central shaft;
the clamping assembly comprises a reinforcing rod, two first cylinders and two fixing rods, the two first cylinders are respectively arranged on two sides below the bottom plate, the two fixing rods are vertically arranged, the lower ends of the two fixing rods are respectively fixedly connected with one ends, far away from the bottom plate, of the two first cylinders, and the two ends of the reinforcing rod are respectively arranged on one side, close to the bottom plate, of the upper ends of the two fixing rods;
the retraction assembly comprises a reinforcing unit, a guide groove, a rack, a lifting block, a second limiting block, two clamping rods, two first limiting blocks, two torsion springs and two connecting units, the guide groove is in a U shape with a downward opening, the reinforcing unit is arranged above the guide groove, the rack is vertically arranged and is arranged at one side of the guide groove through two connecting units, the lifting block is arranged in the U-shaped opening of the guide groove, the second limiting block is arranged below the lifting block, two sides of the lifting block are respectively provided with a groove, one ends of the two clamping rods are respectively hinged to two sides below the lifting block, the two torsion springs are respectively arranged at the hinged positions of the two clamping rods and the lifting block, the two first limiting blocks are respectively arranged at the other ends of the two clamping rods, and the two first limiting blocks are respectively arranged at one sides of the two clamping rods, which are close to each other;
prevent wind the mechanism and include bearing frame, second motor, second gear and third gear, the bearing frame sets up the middle part in the below of bottom plate, the upper end of support sets up the inside at the bearing frame, the center department of third gear is equipped with the through-hole, the third gear is passed to the upper end of support, the second motor sets up the one side at the bearing frame, the second motor is connected with second gear drive, second gear and third gear engagement.
Preferably, in order to improve the intelligent degree of the advertising board, the central control mechanism comprises a wireless signal transceiver module, a PLC, a pressure sensor and a wind direction sensor, the pressure sensor is arranged at the bottom of the U-shaped opening of the guide groove, the wind direction sensor is arranged above the bottom plate, and the wireless signal transceiver module, the pressure sensor and the wind direction sensor are all electrically connected with the PLC.
Preferably, in order to provide power for the lifting of the lifting assembly, the driving assembly comprises a first motor, a winch, two connecting wires and two fixed pulleys, the first motor is arranged in the middle of the upper portion of the bottom plate and is in transmission connection with the winch, the two fixed pulleys are respectively arranged on two sides of the upper portion of the bottom plate, one ends of the two connecting wires are wound on the periphery of the winch, the other ends of the two connecting wires are wound around the two fixed pulleys respectively, and the other ends of the two connecting wires are arranged on the two sleeves respectively.
As preferred, in order to improve the fastness fixed to the lower extreme of poster paper, it includes second cylinder, third transfer line, two second transfer lines, two first transfer lines and two bolts to consolidate the unit, the upper end of the both sides of the inner wall of guide way is equipped with a through-hole respectively, and two bolts set up respectively in two through-holes, and two bolts match with two recesses respectively, the lower extreme of two first transfer lines respectively with the one end fixed connection of keeping away from each other of two bolts, the one end of two second transfer lines is articulated with the upper end of two first transfer lines respectively, the other end of two second transfer lines is articulated with the both ends of third transfer line respectively, the vertical setting of second cylinder is in the top of guide way, third transfer line level sets up the top at the second cylinder.
Preferably, in order to enable the rack to be tightly attached to the first gear, the connecting unit comprises a telescopic rod and a spring, one end of the telescopic rod is arranged on one side of the guide groove, the other end of the telescopic rod is arranged on the rack, the spring is sleeved on the telescopic rod, and two ends of the spring are respectively arranged on the guide groove and the rack.
Preferably, the spring is in a stretched state in order to drive the rack to move in a direction approaching the guide groove.
Preferably, in order to further improve the firmness of fixing the lower end of the advertisement paper, a non-slip mat is further arranged on one side, close to the bottom plate, of the fixing rod.
Preferably, the third gear has a diameter larger than that of the second gear in order to reduce a load of the second motor.
Preferably, in order to improve the accuracy of the control of the second motor, the second motor is a servo motor.
Preferably, in order to improve the illumination effect of the billboard at night, at least two illuminating lamps are further arranged above the bottom plate, and the illuminating lamps are uniformly arranged above the bottom plate.
The windproof billboard has the advantages that in the windproof billboard convenient for replacing the advertisement, automatic replacement of advertising paper on the billboard is realized through the replacement mechanism, so that the efficiency of updating the advertising content of the billboard is improved, and the working danger of workers is reduced.
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 billboard convenient for advertisement replacement and having the windproof function comprises a bottom plate 7 and a support 12, wherein the support 12 is vertically arranged, the bottom plate 7 is arranged above the support 12, the billboard further comprises a replacement mechanism, a windproof mechanism and a central control mechanism, the replacement mechanism is arranged on the bottom plate 7, the bottom plate 7 is connected with the upper end of the support 12 through the windproof mechanism, the central control mechanism is arranged inside the support 12, and the windproof mechanism and the replacement mechanism are both electrically connected with the central control mechanism;
as shown in fig. 1, the replacing mechanism includes a driving assembly, a lifting assembly, a clamping assembly and two retracting assemblies, the driving assembly is arranged above the bottom plate 7, the lifting assembly is horizontally arranged, the driving assembly is connected with two ends of the lifting assembly, the two retracting assemblies are respectively vertically arranged at two sides of the bottom plate 7, and the clamping assembly is horizontally arranged below the bottom plate 7;
under the control of the central control mechanism, the lifting assembly is driven to descend by the driving assembly, under the action of the two retraction assemblies, the advertising paper 13 is rolled up by the lifting assembly, then the lower end of the advertising paper 13 is loosened by the clamping assembly, so that the advertising paper 13 is conveyed to the ground by the lifting assembly, then a worker replaces the advertising paper 13, then the lifting assembly is driven to ascend by the driving assembly, when the lifting assembly ascends to be level with the lower end of the advertising board, the lower end of the advertising paper 13 is fixed by the clamping assembly, and then under the action of the two retraction assemblies, the lifting assembly expands the advertising paper 13 while ascending, so that the replacement of the advertising paper 13 is realized, and the efficiency of replacing advertising content of the advertising board is improved;
as shown in fig. 2 to 4, the lifting assembly includes a central shaft 9, advertisement paper 13, two sleeves 14 and two first gears 15, the central shaft 9 is horizontally disposed, the two first gears 15 are respectively disposed on two ends of the central shaft 9, two ends of the central shaft 9 respectively penetrate the two sleeves 14, and the advertisement paper 13 is wound on the central shaft 9;
the clamping assembly comprises a reinforcing rod 11, two first cylinders 10 and two fixing rods 30, the two first cylinders 10 are respectively arranged on two sides below the bottom plate 7, the two fixing rods 30 are vertically arranged, the lower ends of the two fixing rods 30 are respectively fixedly connected with one ends, far away from the bottom plate 7, of the two first cylinders 10, and two ends of the reinforcing rod 11 are respectively arranged on one side, close to the bottom plate 7, of the upper ends of the two fixing rods 30;
the retractable assembly comprises a reinforcing unit, a guide groove 8, a rack 1, a lifting block 29, a second limiting block 25, two clamping rods 26, two first limiting blocks 24, two torsion springs 27 and two connecting units, wherein the guide groove 8 is U-shaped with a downward opening, the reinforcing unit is arranged above the guide groove 8, the rack 1 is vertically arranged, the rack 1 is arranged at one side of the guide groove 8 through the two connecting units, the lifting block 29 is arranged in the U-shaped opening of the guide groove 8, the second limiting block 25 is arranged below the lifting block 29, two grooves 28 are respectively arranged at two sides of the lifting block 29, one end of each of the two clamping rods 26 is respectively hinged at two sides below the lifting block 29, the two torsion springs 27 are respectively arranged at the hinged positions of the two clamping rods 26 and the lifting block 29, the two first limiting blocks 24 are respectively arranged at the other end of the two clamping rods 26, the two first limiting blocks 24 are respectively arranged at the mutually close sides of the two clamping rods 26;
wherein, under the control of the central control mechanism, the lifting block 29 is loosened by the reinforcing unit, then under the action of the driving assembly, the pulling force of the sleeve 14 on the central shaft 9 is reduced, so that under the action of gravity, the lifting block 29 and the two clamping rods 26 are driven to descend along the guide groove 8 by the central shaft 9, meanwhile, under the action of the rack 1 and the first gear 15, the central shaft 9 is driven to rotate, so that the advertising paper 13 is wound on the central shaft 9 through the central shaft 9, when the central shaft 9 moves to the U-shaped opening of the guide groove 8, under the action of the torsion spring 27, the two clamping rods 26 are rotated away from each other, so that the central shaft 14 is separated from the two clamping rods 26, and simultaneously, under the action of the two first cylinders 10, the reinforcing rods 11 are driven to rotate in the direction away from the bottom plate 7 by the two fixing rods 30, so that the lower end of the advertising paper 13 is, then the central shaft 9 continues to descend to the ground, then the worker replaces a new advertisement paper 13 on the central shaft, and at the same time, the lower end of the advertisement paper 13 naturally droops, then the driving assembly provides power, so that the central shaft 9 is pulled to ascend through the two sleeves 14, when the central shaft 9 ascends to be level with the lower end of the bottom plate 7, the two first air cylinders 10 drive the reinforcing rods 11 to move towards the direction close to the bottom plate 7 through the two fixing rods 30, so that the lower end of the advertisement paper 13 is fixed at the lower end of the bottom plate 7 through the fixing rods 11, then the central shaft 9 continues to ascend, after the central shaft 9 abuts against the second limit block 25, the second limit block 25 drives the ascending block 29 to ascend along the guide groove 8, under the action of the guide groove 8, the two clamping rods 20 are driven to rotate towards each other, so that the two first limit blocks 24 are driven to rotate, under the fixing action of the two first limiting blocks 24 and the second limiting block 25 on the central shaft, the stability of the central shaft is improved, then in the process of ascending the central shaft, the first gear 15 is driven to rotate through the rack 1, so that the central shaft 9 is driven to rotate through the first gear 15, so that the advertising paper is unfolded onto the bottom plate 7 through the central shaft 9, when the lifting block 29 ascends to the top of the guide groove 8, the lifting block 29 is fixed through the reinforcing unit, so that the central shaft 9 is fixed, the load of a driving assembly is reduced, and the advertising paper 13 is replaced;
as shown in fig. 5, the wind-proof mechanism includes a bearing seat 31, a second motor 32, a second gear 33 and a third gear 34, the bearing seat 31 is disposed in the middle of the lower portion of the bottom plate 7, the upper end of the bracket 12 is disposed inside the bearing seat 31, a through hole is disposed at the center of the third gear 34, the upper end of the bracket 12 passes through the third gear 34, the second motor 32 is disposed on one side of the bearing seat 31, the second motor 32 is in transmission connection with the second gear 33, and the second gear 33 is meshed with the third gear 34;
under the control of the central control mechanism, the second motor 32 drives the second gear 33 to rotate, then the second gear 33 drives the third gear 34 to rotate, the bearing seat 31 is driven to rotate through the third gear 34, the base plate 7 is driven to rotate through the bearing seat 31, and the base plate 7 can rotate to be parallel to the wind direction, so that the stress area of the billboard in the wind is reduced, the probability that the billboard is blown down by the wind is reduced, and unnecessary loss is reduced.
Preferably, in order to improve the intelligent degree of the billboard, the central control mechanism comprises a wireless signal transceiver module, a PLC, a pressure sensor 20 and a wind direction sensor, wherein the pressure sensor 20 is arranged at the bottom of the U-shaped opening of the guide groove 8, the wind direction sensor is arranged above the bottom plate 7, and the wireless signal transceiver module, the pressure sensor 20 and the wind direction sensor are all electrically connected with the PLC;
wherein, can detect elevator 29 in the inside position of guide way 8 through pressure sensor 20, can detect the wind direction through wind direction sensor, can gather pressure sensor 20 and wind direction sensor's signal through PLC to through each parts operation of PLC control bill-board, make the bill-board can establish the communication with the mobile device through wireless signal transceiver module, later make the staff can pass through the mobile device remote control bill-board, thereby improved the intelligent degree of bill-board.
Preferably, in order to provide power for the lifting of the lifting assembly, the driving assembly comprises a first motor 4, a winch 5, two connecting wires 6 and two fixed pulleys 2, the first motor 4 is arranged in the middle above the bottom plate 7, the first motor 4 is in transmission connection with the winch 5, the two fixed pulleys 2 are respectively arranged on two sides above the bottom plate 7, one ends of the two connecting wires 6 are wound on the periphery of the winch 5, the other ends of the two connecting wires 6 are wound around the two fixed pulleys 2 respectively, and the other ends of the two connecting wires 6 are arranged on the two sleeves 14 respectively;
wherein, under PLC's control, drive capstan winch 5 through first motor 4 and rotate, later pack up or let out two connecting wires 6 through capstan winch 5 to the extension that has realized two connecting wires 6 and has shortened, thereby goes up and down through connecting wire 6 drive center pin 9.
Preferably, in order to improve the firmness of fixing the lower end of the advertisement paper 13, the reinforcing unit includes a second cylinder 19, a third transmission rod 18, two second transmission rods 17, two first transmission rods 16 and two bolts 21, the upper ends of the two sides of the inner wall of the guide slot 8 are respectively provided with a through hole, the two bolts 21 are respectively arranged in the two through holes, the two bolts 21 are respectively matched with the two grooves 28, the lower ends of the two first transmission rods 16 are respectively fixedly connected with the ends, far away from each other, of the two bolts 21, one ends of the two second transmission rods 17 are respectively hinged with the upper ends of the two first transmission rods 16, the other ends of the two second transmission rods 17 are respectively hinged with the two ends of the third transmission rod 18, the second cylinder 19 is vertically arranged above the guide slot 8, and the third transmission rod 18 is horizontally arranged above the second cylinder 19;
wherein, under PLC's control, through the lift of second cylinder 19 drive third transfer line 18 to under the drive of third transfer line 18, drive two first transfer lines 16 through two second transfer lines 17 respectively and be close to each other or keep away from each other, thereby drive two bolt 21 respectively through two first transfer lines 16 and be close to each other or keep away from each other, later under the interact of bolt 21 and recess 28, improved the fastness that guide way 8 was fixed to lifter 29.
Preferably, in order to enable the rack 1 to be tightly attached to the first gear 15, the connecting unit includes a telescopic rod 22 and a spring 23, one end of the telescopic rod 22 is disposed at one side of the guide groove 8, the other end of the telescopic rod 22 is disposed on the rack 1, the spring 23 is sleeved on the telescopic rod 22, and two ends of the spring 23 are disposed on the guide groove 8 and the rack 1, respectively;
wherein, the firmness of being connected between the guide groove 8 and the rack 1 is improved under the action of the telescopic rod 22, and then the rack 1 is pulled by the spring 23 to move towards the direction close to the guide groove 8, so that the rack 1 and the first gear 15 can be tightly attached.
Preferably, in order to drive the rack 1 to move towards the direction approaching the guide groove 8, the spring 23 is in a stretching state, and when the spring 23 is in the stretching state, the spring 23 generates a pulling on the rack 1, so that the rack 1 is pulled to move towards the direction approaching the guide groove 8.
Preferably, in order to further improve the fixing firmness of the lower end of the advertisement paper 13, a non-slip mat is further arranged on one side of the fixing rod 30 close to the bottom plate 7, and the friction force between the fixing rod 30 and the advertisement paper 13 is increased through the non-slip mat, so that the fixing firmness of the fixing rod 30 to the lower end of the advertisement paper 13 is improved.
Preferably, in order to reduce the load of the second motor 32, the diameter of the third gear 34 is larger than that of the second gear 33, and when the diameter of the third gear 34 is larger than that of the second gear 33, the driving force of the second gear 33 for driving the third gear 34 to rotate is reduced, so that the load of the second motor 32 is reduced.
Preferably, the second motor 32 is a servo motor in order to improve the accuracy of the control of the second motor 32.
Preferably, in order to improve the illumination effect of the billboard at night, at least two illuminating lamps 3 are further arranged above the bottom plate 7, and the illuminating lamps 3 are uniformly arranged above the bottom plate 7.
Under the control of the central control mechanism, the lifting component is driven to descend by the driving component, under the action of the two retraction components, the advertising paper 13 is rolled up by the lifting component, then the lower end of the advertising paper 13 is loosened by the clamping component, so that the advertising paper 13 is conveyed to the ground by the lifting component, then a worker replaces the advertising paper 13, then the lifting component is driven to ascend by the driving component, when the lifting component ascends to be level with the lower end of the advertising board, the lower end of the advertising paper 13 is fixed by the clamping component, then under the action of the two retraction components, the lifting component expands the advertising paper 13 while ascending, thereby realizing the replacement of the advertising paper 13, improving the efficiency of replacing advertising content of the advertising board, under the control of the central control mechanism, the second gear 33 is driven to rotate by the second motor 32, and then the third gear 34 is driven to rotate by the second gear 33, therefore, the bearing seat 31 is driven to rotate through the third gear 34, the base plate 7 is driven to rotate through the bearing seat 31, the base plate can rotate to be parallel to the wind direction, the stress area of the advertising board in the wind is reduced, the probability that the advertising board is blown down by the wind is reduced, and unnecessary loss is reduced.
Compared with the prior art, in this bill-board that has windproof function convenient to advertisement is changed, through changing the mechanism, realized the automatic change of bill-board on the bill-board 13, thereby improved the efficiency of updating the bill-board advertisement content, the danger of staff's work has been reduced, compare with current mechanism, this mechanism structure is ingenious, high transmission efficiency, therefore, the clothes hanger is strong in practicability, moreover, through preventing wind the mechanism, make the bill-board can adjust self angle according to the wind direction, thereby the bill-board windward side area has been reduced, the effort of wind to the bill-board has been reduced, thereby the security performance of bill-board has been improved, compare with current mechanism, this mechanism simple structure, the probability of trouble emergence has been reduced.
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.