Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 7, the invention comprises a frame 1 formed by rigidly connecting a horizontal beam and vertical columns, a plurality of vertically arranged display boards 2 which are horizontally arranged in parallel are arranged on the inner side of the frame 1, the front end surfaces of the display boards 2 are flush, the display boards 2 are sequentially arranged between the two vertical columns in a close manner and cannot move left and right, and two horizontal sliding rods 3 which are respectively arranged on the upper side and the lower side of the display boards 2 and slide left and right are arranged on the frame 1; the horizontal sliding rod 3 is provided with a plurality of vertically arranged rotating shafts 4 in one-to-one correspondence with the display boards 2, one end of each rotating shaft 4, far away from the display boards 2, is elastically hinged to the horizontal sliding rod 3 through a torsion spring 5, one end, close to the display boards 2, of each rotating shaft 4 is provided with a rotation stopping boss 6, the display boards 2 are provided with sliding grooves 7 which are horizontally arranged along the width direction of the display boards 2 and matched with the rotation stopping bosses 6, the rotation stopping bosses 6 are slidably arranged in the sliding grooves 7 to enable the display boards 2 and the rotating shafts 4 to only relatively slide along the sliding grooves 7 and cannot relatively rotate, the frame 1 is provided with abdicating grooves 8 which are arranged between the display boards 2 and the horizontal sliding rods 3 and matched with the rotating shafts 4, the middle parts of the abdicating grooves 8 are in rotation stopping sliding matching with the rotating shafts 4, and the; the frame 1 is provided with a horizontal shaft 9 which slides left and right, the two horizontal sliding rods 3 are respectively connected with the horizontal shaft 9 to enable the horizontal shaft 9 and the horizontal sliding rods 3 to slide simultaneously, the frame 1 is provided with a rotary table 10 which is coaxially sleeved with the horizontal shaft 9, the horizontal shaft 9 is provided with a rotary ring 11 which rotates coaxially with the horizontal shaft 9, the rotary table 10 is elastically hinged with a plurality of first connecting rods 12 which are distributed along the circumference of the axis of the horizontal shaft 9, the rotary ring 11 is hinged with a plurality of second connecting rods 13 which are distributed along the circumference of the axis of the horizontal shaft 9, the plurality of first connecting rods 12 and the plurality of second connecting rods 13 are in one-to-one correspondence and are hinged with each other, when the rotary table 10 rotates, the rotary ring 11 rotates synchronously with the rotary table 10 under the driving of the first connecting rods 12 and the second connecting rods 13, meanwhile, the first connecting rods 12 and the second connecting rods 13 rotate towards the outer side of the circumference of the horizontal shaft 9 under the centrifugal force to pull the rotary ring 11 to, when the rotary table 10 stops rotating, the rotary ring 11 stops rotating immediately, the first connecting rod 12 resets and rotates under the action of the elastic hinge joint force and pushes the rotary ring 11 to be far away from the rotary table 10 through the second connecting rod 13, and the horizontal shaft 9 slides due to the movement of the rotary ring 11 and pushes the horizontal sliding rod 3 to reset and slide; the frame 1 is provided with fans 14 arranged in front and back of the axis, and the fans 14 are in meshing transmission with the turntable 10 through a bevel gear pair.
Preferably, the rotating shaft 4 is a double-faced milling flat shaft, the abdicating groove 8 is formed by communicating a straight groove 801 and vertical cylindrical grooves 802 arranged at the left end and the right end of the straight groove 801, the groove width of the straight groove 801 is matched with the distance between two milling flat surfaces of the rotating shaft 4, the inner diameter of the cylindrical groove 802 is matched with the shaft diameter of the rotating shaft 4, when the rotating shaft 4 slides left and right in the straight groove 801, sliding is generated between the two milling flat surfaces and the straight groove 801 and the rotation of the rotating shaft 4 is limited, and when the rotating shaft 4 slides into the cylindrical grooves 802, the rotating shaft 4 is not limited by the milling flat surfaces and is in a rotatable state; this setting aims at restricting the turned position of panel 2, and panel 2 could rotate when making 4 slides to the particular position of pivot, avoids panel 2 to rotate and produce the dislocation in optional position, influences advertisement putting effect and follow-up use.
Preferably, the rotating ring 11 is sleeved on the horizontal shaft 9, and two retaining rings 15 respectively arranged at the left side and the right side of the rotating ring 11 are arranged on the horizontal shaft 9, so that the rotating ring 11 only slides and rotates on the horizontal shaft 9 between the two retaining rings 15; the horizontal shaft 9 on the cover be equipped with quill 16, carousel 10, swivel 11, first connecting rod 12 and second connecting rod 13 have two respectively and set up along the well cross-section bilateral symmetry of quill 16, carousel 10 is connected and the transmission direction of the one-way bearing 17 that two carousels 10 correspond is opposite with quill 16 through one-way bearing 17, only has a carousel 10 synchronous rotation along with it all the time when quill 16 rotates, and the turning of quill 16 changes the back, and synchronous pivoted carousel 10 produces the exchange immediately with it to realize quill 16 independent control to the swivel 11 of left and right sides when just reversing, and then realize the control to the slip direction of horizontal sliding rod 3, fan 14 and quill 16 through bevel gear pair meshing transmission.
Preferably, the bevel gear pair includes a first bevel gear 18 coaxially connected to the fan 14, a second bevel gear 19 horizontally disposed on the frame 1 along the axis of rotation, and a third bevel gear 20 coaxially disposed on the turntable 10, and the first bevel gear 18, the second bevel gear 19, and the third bevel gear 20 are all 45-degree bevel gears and are sequentially engaged with each other, so as to realize axial conversion and power transmission between the fan 14 and the turntable 10.
Preferably, the rotating shaft 4 rotates on the horizontal sliding rod 3 in the direction opposite to the initial torsion of the torsion spring 5, and can be reliably stopped after being reset to the initial position under the action of the torsion spring 5; in order to realize the limitation, a semicircular boss is arranged at one end of the rotating shaft 4, which is far away from the display boards 2, and a sector-shaped stopping part is correspondingly arranged on the horizontal sliding rod 3, and the semicircular boss is stopped by the sector-shaped stopping part when the rotating shaft 4 rotates for a certain angle, so that the limitation on the rotating angle of the rotating shaft 4 on the horizontal sliding rod 3 is realized, the purpose is to keep the front end surfaces of the display boards 2 in a flush state when the display boards 2 are reset, and simultaneously, the initial torsion force of the torsion spring 5 in the reset state of the display boards 2 can always provide a certain reset rotary force for the display boards 2, and the complete reset of the display boards 2.
Preferably, both ends have magnet respectively about panel 2, realize through the magnetic force of magnet between the adjacent panel 2 and paste closely the alignment, not only can make a plurality of panels 2 reliably stop when this position, still can the interval between the adjacent panel 2 of effective control, avoid the too big advertisement show effect that influences of interval.
Preferably, the frame 1 is mounted on a base 21.
When the advertisement board is used, the base 21 or the advertisement support is fixed on the ground, the frame 1 is fixedly installed on the base 21 or the advertisement support, the display boards 2 are used for pasting advertisement pages or installing display screens, and the advertisement pages or the display screens on the plurality of display boards 2 are spliced into a complete advertisement graph.
When the device is normally used, the first connecting rod 12 is elastically hinged, so that the first connecting rod is kept parallel to the horizontal shaft 9 under the action of hinge elasticity when not subjected to external force, referring to the attached drawing 5, the rotating rings 11 which are symmetrically arranged left and right are respectively pushed to positions which are contacted with the retainer rings 15 far away from the rotating disc 10, at the moment, the first connecting rod 12 and the second connecting rod 13 are positioned at dead point positions of the hinged connecting rods, the horizontal shaft 9 cannot slide left and right, and the position of the horizontal sliding rod 3 is kept unchanged; at this moment, pivot 4 is in the middle part of groove 8 of stepping down, refers to fig. 4, and straight flute 801 and pivot 4 mill flat face sliding contact and make pivot 4 unable rotation, so panel 2 is unable to rotate, and the advertisement figure that a plurality of panels 2 constitute is complete, and the operation of puting up of advertisement of both being convenient for has also guaranteed the bandwagon effect of advertisement.
When the weather is strong wind, the fan 14 is blown by wind power to rotate, under the action of different wind directions, the fan 14 rotates in two directions and drives the sleeve shaft 16 to rotate through the bevel gear pair, and because the two turntables 10 are respectively connected with the sleeve shaft 16 through the two one-way bearings 17 with opposite transmission directions, when the fan 14 rotates in any direction, only one turntable 10 rotates along with the sleeve shaft 16 at the same time, and the other turntable 10 is not influenced; when any one of the turntables 10 rotates, the first connecting rod 12 and the second connecting rod 13 connected with the turntables drive the corresponding rotary rings 11 to rotate simultaneously, and with the continuous increase of the rotating speed of any one of the turntables 10, the rotating centrifugal force gradually overcomes the hinge elasticity of the first connecting rod 12 and the turntables 10, and the hinge ends of the first connecting rod 12 and the second connecting rod 13 do centrifugal motion to pull the rotary rings 11 to slide towards the direction close to the turntables 10; when the rotating ring 11 slides to contact with the retainer ring 15 close to the rotating disc 10, the rotating ring 11 pulls the horizontal shaft 9 to move simultaneously through the retainer ring 15, and referring to fig. 7, because the rotating ring 11 on one symmetrical side is slidably arranged between two corresponding retainer rings 15, the rotating ring 11 on one symmetrical side and the corresponding retainer rings 15 cannot block the movement of the horizontal shaft 9; when the horizontal shaft 9 moves, the horizontal sliding rod 3 is driven to slide simultaneously, referring to fig. 4, when the horizontal sliding rod 3 slides, the rotating shaft 4 is driven to slide simultaneously, the rotating shaft 4 slides towards the end parts of the sliding groove 7 and the abdicating groove 8, when the rotating shaft 4 slides to any end of the abdicating groove 8, the rotating shaft 4 is separated from the straight groove 801 and is arranged in the columnar groove 802, the limitation of the straight groove 801 on the milling flat surface of the rotating shaft 4 is removed, so that the rotating shaft 4 is in a rotatable state; at the moment, when the wind power received by the display boards 2 overcomes the torsion force of the torsion spring 5, the display boards 2 rotate along the rotating shaft 4, so that the airflow passes through the gap between the adjacent display boards 2, the larger the wind power is, the larger the rotating angle of the display boards 2 is, the stress area of the display boards 2 per se is effectively reduced, namely the resistance of the display boards 2 to the airflow is reduced, the integral stress of the display board 2 is greatly reduced, and the probability of toppling or being blown down is greatly reduced.
When the wind power is weakened or stopped, the display board 2 resets and rotates under the torsion action of the torsion spring 5 and reliably stops through the angle limiting device of the rotating shaft 4 or the attraction force of the magnet, the rotating speed of the fan 14 is gradually reduced, the centrifugal force generated by the rotation of the corresponding rotating disc 10 is reduced, the first connecting rod 12 resets under the action of the hinge elastic force and pushes the rotating ring 11 to reset, and the horizontal shaft 9 drives the horizontal sliding rod 3 to reset; at this time, the display board 2 is reset, so the milled flat surface of the rotating shaft 4 corresponds to the straight groove 801 again, the sliding of the horizontal sliding rod 3 enables the rotating shaft 4 to enter the horizontal straight groove 8 again to stop rotating, the display board 2 is reliably stopped, the rotation cannot be generated due to external force, and the normal display of the advertisement is ensured.
It is anticipated that the above-mentioned turning of the fan 14, the alternative transmission of the two turntables 10, the sliding direction of the horizontal sliding bar 3 and the rotating direction of the exhibition board 2 are corresponding and related to each other, and for better understanding of the use effect of the present invention, the corresponding relations will now be exemplified: when the airflow flows backwards, referring to fig. 1, the fan 14 rotates clockwise, the right turntable 10 rotates synchronously, the horizontal shaft 9 is pulled by the right swivel 11 to drive the horizontal sliding rod 3 to slide leftwards, the rotating shaft 4 slides into the left cylindrical groove 802, the right end of the display board 2 rotates backwards after being blown by the airflow, so the torsion of the torsion spring 5 is opposite to the rotation direction of the display board 2 in the state, and the torsion direction of the torsion spring 5 is set accordingly; because the torsion direction of the torsion spring 5 is unchanged, when the airflow flows forwards, the fan 14 rotates anticlockwise, the turntable 10 on the left side rotates synchronously, the horizontal shaft 9 is pulled by the rotating ring 11 on the left side to drive the horizontal sliding rod 3 to slide rightwards, the rotating shaft 4 slides into the cylindrical groove 802 on the right side, the left end of the display board 2 rotates forwards after being blown by the airflow, and at the moment, the set torsion direction of the torsion spring 5 is still opposite to the rotation direction of the display board 2; therefore, after the torsion of the torsion spring 5 is determined according to the corresponding relationship of each part, the torsion spring 5 can be matched with the change of the rotation direction of the display board 2 when the rotating shaft 4 is arranged at the left end and the right end of the display board 2, so that the reset rotation of the display board 2 is effectively ensured.
Meanwhile, obviously, in order to make the display effect of the display boards 2 spliced in sequence better, the distance between the display boards 2 should be as small as possible during normal display, and the arrangement also ensures the synchronous change of the relative positions between the plurality of rotating shafts 4 and the corresponding display boards 2 when the horizontal sliding rods 3 slide, thereby ensuring the wind resistance reducing effect and the resetting effect of the display boards 2.
The invention realizes the timely turning rotation of the advertisement display board by utilizing the flowing pressure when the airflow changes so as to reduce the stress area of the advertisement display board, thereby obviously reducing the resistance of the display board to the airflow, having good windproof effect, greatly reducing the probability of toppling or blowing, and effectively ensuring the personal and property safety of nearby personnel.
When the wind power generator is used, the wind power generator is timely opened according to the wind power, the field operation is not needed, and the included parts are all common mechanical structures, so that the maintenance is convenient; the posting and replacement of the advertisement page are the same as those of the currently common advertisement display device, professional operation requirements do not exist, and the daily use is convenient.