CN115641786B - Variable display screen device - Google Patents
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- CN115641786B CN115641786B CN202211353227.5A CN202211353227A CN115641786B CN 115641786 B CN115641786 B CN 115641786B CN 202211353227 A CN202211353227 A CN 202211353227A CN 115641786 B CN115641786 B CN 115641786B
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Abstract
The utility model discloses a variable display screen device, which comprises a bracket, an outer frame arranged on the bracket, a plurality of display screens movably spliced in the outer frame, and further comprises: the position adjusting unit comprises a driving piece, wherein the output shaft of the driving piece is provided with a plurality of reciprocating mechanisms in parallel, the display screens are in one-to-one correspondence and are connected with each other, and the reciprocating mechanisms drive the display screens connected with the reciprocating mechanisms to change positions in the vertical direction based on the power of the driving piece; according to the embodiment of the utility model, the reciprocating mechanism is driven to move by the driving piece according to the requirement of advertisement content display, and the reciprocating mechanism drives the display screens to displace in the vertical direction, so that dynamic changes are formed among the display screens, and the display visual effect of advertisements is better.
Description
Technical Field
The utility model relates to the technical field of display screens, in particular to a variable display screen device.
Background
The display screen is widely applied, such as a computer display screen, a mobile phone display screen, a television display screen and the like, along with the development of large screen technology, various occasions such as industry, business, administrative and other fields are now provided with video or picture display by means of the large screen, and the display screen is installed outdoors under most conditions at the moment so as to achieve better propaganda effect.
The utility model discloses an outdoor advertisement display screen with the bulletin number of CN205943362U and the bulletin day of 2017 and 02 and 08, and relates to the technical field of display screens, and the outdoor advertisement display screen comprises a disc base, wherein a liftable support is arranged on the disc base, a rectangular outer frame and a rectangular inner frame are arranged at the upper end of the liftable support, the rectangular inner frame is arranged in the rectangular outer frame, rotating shafts are arranged at the centers of the upper inner wall and the lower inner wall of the rectangular outer frame, the rectangular inner frame is rotatably connected with the rectangular outer frame through the rotating shafts, an umbrella-shaped shield is arranged at the upper end of the rectangular outer frame, an LED display screen is arranged on the rectangular inner frame, a power supply device is arranged at the lower end of the rectangular outer frame, the LED display screen is connected with the power supply device through a wire, and a plurality of radiating holes are formed in the side of the rectangular inner frame. The rotatable outdoor advertisement display screen can be rotated to a more convenient watching position according to the requirement, so that the attention of people can be better attracted, the attention of advertisements can be improved, and a better advertisement effect can be achieved.
The prior art has the defects that most of outdoor large screens are formed by splicing a plurality of display screens, and the positions of the display screens are relatively fixed and cannot be changed.
Disclosure of Invention
The utility model aims to provide a variable display screen device which solves the technical problems in the related art.
In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a variable display device, includes the support, sets up frame and a plurality of activity of on the support splice in the display of frame, each the display has a home position that is sharp range, still includes:
the position adjusting unit comprises a driving piece, a plurality of reciprocating mechanisms are arranged on an output shaft of the driving piece in parallel, the display screens are in one-to-one correspondence and are connected with each other, and the reciprocating mechanisms drive the display screens connected with the driving piece to change positions in the vertical direction based on the power of the driving piece.
Above-mentioned, the frame is cuboid structure and is provided with a plurality of activity concatenation display screens along its width direction's both sides symmetry, two display screens in the corresponding position in frame both sides are connected in one reciprocating mechanism.
Above-mentioned, reciprocating mechanism includes with driving piece output shaft's pivot and a plurality of buttons that set up side by side in the pivot axial, the cross-section centre of a circle of pivot with the eccentric setting between the button centre of a circle, be provided with a plurality of base plates along the vertical slip of pivot axial direction side by side in the frame, the button with the base plate one-to-one, the display screen with the base plate is connected.
The distance adjusting piece is arranged between the rotating shaft and the round block, and the distance between the center of the section of the rotating shaft and the center of the round block is controlled by the distance adjusting piece.
The lifting mechanism is arranged in the outer frame, and the driving piece is connected with the lifting mechanism.
Above-mentioned, the display screen back is provided with the connecting block, be provided with the connecting rod on the base plate, the connecting block with through round pin axle rotation connection and the two junction is equipped with first elastic component between the connecting rod, the last journey terminal point department of moving of display screen is provided with the wedge on the frame, the low end of wedge is close to the base plate, the display screen upper end with the wedge corresponds.
Above-mentioned, the connecting block with round pin axle rigid coupling, the connecting rod with round pin axle rotates to be connected, the connecting block with junction between the connecting rod is equipped with the locating part, the locating part including set up in round pin epaxial spacing groove, and the rigid coupling in stopper on the connecting rod.
Above-mentioned, the display screen back is provided with vertical spout, the connecting block is in slide about in the spout sets up, just the connecting block with be connected with the second elastic component between the spout lower extreme, display screen downward movement journey extreme point department offer the guide way on the frame, the display screen lower extreme with the guide way corresponds.
Above-mentioned, the cell wall of guide way comprises first inclined plane, second arc surface and third inclined plane, the second arc surface is in first inclined plane with the low end position of second inclined plane, the display screen lower extreme gets into when the guide way in proper order with first inclined plane, second arc surface and third inclined plane sliding contact.
In the above-mentioned manner, the connecting block always abuts against the upper end of the chute on the travel portion between the upper travel end point and the lower travel end point of the display screen.
The utility model has the beneficial effects that: according to the embodiment of the utility model, the reciprocating mechanism is driven to move by the driving piece according to the requirement of advertisement content display, and the reciprocating mechanism drives the display screens to displace in the vertical direction, so that dynamic changes are formed among the display screens, and the display visual effect of advertisements is better.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
Fig. 1 is a schematic perspective view of a variable display device according to an embodiment of the present utility model;
FIG. 2 is a schematic front view of a display device according to an embodiment of the present utility model;
FIG. 3 is a schematic cross-sectional view of the structure at A-A of FIG. 2;
FIG. 4 is a schematic view of the cross-sectional structure at B-B of FIG. 2;
FIG. 5 is a schematic plan view of a display screen of a variable display screen device according to an embodiment of the present utility model;
fig. 6 is a schematic plan view of a display screen of a variable display screen device according to an embodiment of the present utility model when the display screen is abutted against a triangle block;
fig. 7 is a schematic plan view of a display device according to an embodiment of the present utility model when a limiting slot of the display device is connected to a limiting block;
fig. 8 is a schematic plan view of a display device according to an embodiment of the present utility model when a limiting slot is separated from a limiting block.
Reference numerals illustrate:
1. a bracket; 2. an outer frame; 3. a display screen; 4. a driving member; 5. a rotating shaft; 6. round blocks; 7. a substrate; 8. a distance adjusting member; 9. a lifting mechanism; 10. a connecting block; 11. a connecting rod; 12. a pin shaft; 13. a wedge surface; 14. a limit groove; 15. a limiting block; 16. a chute; 17. a guide groove; 18. a first inclined surface; 19. a second arc surface; 20. a third inclined surface; 21. triangular blocks.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 8, the variable display device provided by the embodiment of the utility model includes a bracket 1, an outer frame 2 disposed on the bracket 1, and a plurality of display screens 3 movably spliced in the outer frame, where each display screen 3 has a start position in a linear arrangement (the start positions of the display screens 3 are all arranged in an array along a horizontal line, and edges between two display screens in adjacent positions are not limited by each other, so that the display screens need to be dynamically changed in a subsequent use process, that is, a transmission mechanism for driving the display screens to dynamically change is used, so that the start positions of the display screens can be selected in a matching manner according to the installation position of the transmission mechanism, so that the up-down movement travel of the display screens on the outer frame is not limited, and all the display screens can be displayed in the start positions in a linear arrangement according to the requirement of advertisement content, and the display screens in a linear arrangement are arranged in an array along the horizontal line, and edges between two display screens in adjacent positions are not limited by each other, so that when a display screen in a later use is damaged, the display screen can be disassembled and not be connected to other display screens in a loose state, and the display screens can be normally connected to other display screens in a normal condition, and the display device can not be affected by the wind power transmission mechanism, and the display screen is also changed, and has the influence on the display screen: the position adjusting unit comprises a driving piece 4, wherein a plurality of reciprocating mechanisms (such as cam reciprocating mechanisms and screw rod transmission mechanisms can realize linear reciprocating movement) are arranged on an output shaft of the driving piece 4 in parallel, the driving piece 4 can drive the cam reciprocating mechanisms to rotate, and the screw rods in the screw rod transmission mechanisms rotate positively and negatively, such as motors, for example), the display screens 3 are in one-to-one correspondence with the reciprocating mechanisms and are mutually connected, and the reciprocating mechanisms drive the display screens 3 connected with the driving piece 4 to change positions in the vertical direction based on the power of the driving piece 4.
Specifically, the outdoor large screen is mainly provided with image advertisements, namely, the advertisement content is displayed by playing pictures and matching with proper text descriptions, and also provided with audiovisual advertisements, namely, the advertisement content is displayed by jointly matching with sound, images, music and rhythm, the advertisement is transmitted, meanwhile, deep impressions are required to be left in the brains of viewers, the conventional outdoor large screen is basically formed by mutually splicing a plurality of display screens 3 into a whole, the advertisement, particularly the audiovisual advertisement, is completely dynamically displayed in video, namely, the display effect is better than that of a small screen, but the dynamic display is limited in video.
The utility model has the beneficial effects that: according to the embodiment of the utility model, the reciprocating mechanism is driven to move by the driving piece 4 according to the requirement of advertisement content display, and the reciprocating mechanism drives the display screens 3 to displace in the vertical direction, so that dynamic changes are formed among the display screens 3, and the display visual effect of advertisements is better.
Preferably, the outer frame 2 is in a cuboid structure, and a plurality of movably spliced display screens 3 are arranged on the inner side of the outer frame, alternatively, the display screens 3 are provided with two groups, one group of display screens is respectively arranged on two opposite sides of the cuboid structure, and one group of display screens is respectively arranged on the front side surface and the rear side surface of the cuboid structure, each group of display screens comprises a plurality of movably spliced display screens 3, and two display screens 3 at corresponding positions on two sides of the outer frame 2 are connected to one reciprocating mechanism (refer to fig. 1); specifically, the display screens 3 are arranged on two sides of the outer frame 2, so that the whole display screen 3 device can be installed in the middle of a bidirectional road, and people can watch the displayed advertisements in all directions, thereby attracting more people.
Preferably, the reciprocating mechanism includes a rotating shaft 5 connected with an output shaft of the driving member 4, and a plurality of round blocks 6 arranged in parallel in an axial direction of the rotating shaft 5, a center of a cross section of the rotating shaft 5 and a center of the round blocks 6 are eccentrically arranged, a plurality of base plates 7 are arranged in the outer frame 2 in parallel in the axial direction of the rotating shaft 5, the base plates 7 are arranged in the outer frame 2 in a vertically sliding manner, side surfaces of the round blocks 6 are in sliding contact with lower surfaces of the base plates 7, the round blocks 6 are in one-to-one correspondence with the base plates 7, and the display screen 3 is connected with the base plates 7 (see fig. 3 and 4).
Specifically, when the driving member 4 works, the driving member can drive the rotating shaft 5 connected with the driving member to rotate, the rotating shaft 5 rotates to drive the round block 6 to rotate circumferentially, and the center of the cross section of the rotating shaft 5 and the center of the round block 6 are eccentrically arranged, so that when the round block 6 rotates circumferentially along with the rotating shaft 5, the rotation radius of the round block 6 at the position farthest from the rotating shaft 5 is increased, the substrate 7 is in sliding contact with the side surface of the round block 6, if the round block 6 is taken as a reference object, the motion track of the substrate 7 is the circumference of the side surface of the round block 6, and the substrate 7 only slides up and down in the outer frame 2, so that when the round block 6 moves circumferentially, the position closest to the rotating shaft 5 of the side surface of the round block is alternately contacted with the lower surface of the substrate 7, and as the rotation radius increases, the round block 6 can generate an upward pushing effect on the substrate 7, otherwise, the round block 6 can move under the action of self gravity plus the gravity of the display screen 3, and thus the dynamic effect of the display screen 3 can reciprocate up and down in the outer frame 2.
Further, a distance adjusting member 8 is disposed between the rotating shaft 5 and the round block 6, and a distance between a center of a cross section of the rotating shaft 5 and a center of the round block 6 is controlled by the distance adjusting member 8 (see fig. 3 and 4); specifically, the eccentric distance between the circle block 6 and the rotating shaft 5 can be set in advance according to actual needs, and the simple advertisements can be realized through the mode, but along with the richer video content, the mode can be a little behind, so that the distance adjusting piece 8 can be set according to actual needs, for example, when only displaying advertisements with simpler video content, the distance adjusting piece 8 can be set to rotate the distance between the circle center of the screw control circle block 6 and the center line of the rotating shaft 5, if the video content is richer, the distance adjusting piece 8 can be set to be an electric push rod, the electric push rod is electrically connected with the control center, then the expansion and contraction of the electric push rod is changed based on the video content, and the distance between the circle center of the circle block 6 and the center line of the rotating shaft 5 can be changed constantly, so that the dynamic display effect can be better.
Further, a lifting mechanism 9 is disposed in the outer frame 2 (the lifting mechanism 9 is only required to achieve a lifting function, which is the prior art and is not described in detail herein), and the driving member 4 is connected to the lifting mechanism 9 (see fig. 3 and 4); specifically, the display screen 3 is when the show advertisement, the height that some advertisements show is high, give people a look-up effect, can let the main part in the picture scatter the visual effect that tows, the mane is tight, great or rise, the height of some advertisements just needs to be low, make the people's eye see more comfortable, therefore the use of elevating system 9 alright drive position adjustment unit and shift up, all display screens 3 are driven by position adjustment unit and are shifted up, above-mentioned purpose is realized to all display screens 3, secondly, meet strong wind weather in the open air, frame 2 forms the hindrance to the wind, and the position that sets up display screen 3 on frame 2 is except that display screen 3 forms the hindrance to the wind, no longer have other structures, consequently, wind is also great through the wind-force that this position formed, its reason is that the air current is by open area flow when flowing through, and then the further shrink of ventilation area can form the acceleration effect, when the position that the frame 2 is seen through the wind, when the strong wind is blown up to display screen 3, all display screen 3 is also relatively big by wind influence, the influence is seen by wind, even, the influence of the display screen 3 is reduced by wind, even the influence of shaking the position of the window 3, and the influence of the gravity of the position of the window 3 is greatly, and the position of the window 3 is moved down, thereby the impact of the display screen 3 is reduced, and the gravity is reduced, and the position of the display screen 3 is moved down, and the position is compared with the position of the display screen 3, and has the impact effect is reduced, and has the effect that the gravity 3 is reduced, and has the effect that the impact 3 is reduced.
Further, the back of the display screen 3 is provided with a connecting block 10, the substrate 7 is provided with a connecting rod 11, the connecting block 10 is rotatably connected with the connecting rod 11 through a pin shaft 12, a first elastic member (the first elastic member is a torsion spring) is arranged at the joint of the connecting block 10 and the connecting rod 11, a wedge-shaped surface 13 is arranged on the outer frame 2 at the final position of the upward movement of the display screen 3, the lower end of the wedge-shaped surface 13 is close to the substrate 7, and the upper end of the display screen 3 corresponds to the wedge-shaped surface 13 (refer to fig. 3 and 5).
Specifically, the wind level is from 0 to 12, and in order to protect the display screen 3 and normally display the advertisement, an embodiment is now provided, such as:
when the wind is at 0 to 4 levels, the first elastic piece can enable the connecting block 10 and the connecting rod 11 to be on the same horizontal line, namely the display screen 3 is in a vertical state, and advertisements can be normally displayed.
When wind is in 5 to 8 stages, the reciprocating mechanism makes all the display screens 3 on the same horizontal line, then the lifting mechanism 9 drives all the reciprocating mechanisms to move upwards as a whole, the reciprocating mechanism drives the display screens 3 to move upwards, the upper ends of the display screens are contacted with the wedge-shaped surfaces 13, and as the display screens 3 are driven to move upwards, the upper ends of the display screens 3 continuously squeeze the wedge-shaped surfaces 13, the squeezing can form a squeezing force, the squeezing force breaks down a force perpendicular to the wedge-shaped surfaces 13 and a force in the oblique direction of the wedge-shaped surfaces 13 on the wedge-shaped surfaces 13, the wedge-shaped surfaces 13 are arranged on the outer frames 2, the outer frames 2 cannot be pushed, the display screens 3 are rotationally connected with the connecting rods 11 through the connecting blocks 10, the upper ends of the display screens 3 can move in the oblique direction of the wedge-shaped surfaces 13, so display screen 3 just will take place the deflection with round pin axle 12 as the axle, the contained angle between display screen 3 and the connecting rod 11 increases thereupon, according to the size of wind-force, the distance that display screen 3 moved upwards is controlled by elevating system 9, then its inclination just also obtains control, and when wind blows to the display screen 3 that inclines, can be guided by display screen 3 for the wind flow direction changes, the power that wind gave display screen 3 can decompose promptly, a part is born by display screen 3, another part is along display screen 3 incline direction, so can realize unloading wind force's effect, thereby play the purpose of protecting display screen 3, display screen 3 that the part was inclined on frame 2 can continue to demonstrate the advertisement, the display screen 3 that inclines, can also reduce people's new line angle.
When the wind is at the 9-12 level, the lifting mechanism 9 operates to drive the position adjusting unit to move downwards, all the display screens 3 move downwards by utilizing the gravity of the display screens 3 and the gravity of the parts such as the base plate 7, and all the display screens 3 move downwards to the lower part of the outer frame 2, so that the display screens 3 are protected.
Still further, the connection block 10 is fixedly connected with the pin shaft 12, the connection rod 11 is rotatably connected with the pin shaft 12, a limiting piece is arranged at the connection part between the connection block 10 and the connection rod 11, and the limiting piece comprises a limiting groove 14 formed on the pin shaft 12 and a limiting block 15 fixedly connected on the connection rod 11 (see fig. 7 and 8); specifically, when wind is in 0 to 4 levels, the first elastic piece can enable the connecting block 10 and the connecting rod 11 to be on the same horizontal line, namely, the display screen 3 is in a vertical state, advertisements can be normally displayed, but the thrust generated by the wind on the display screen 3 is not enough to enable the limit block 15 to be separated from the limit groove 14 all the time, and when the wind is in 5 to 8 levels, the upper end of the display screen 3 is in contact with the wedge-shaped surface 13 to incline, the limit block 15 can be separated from the limit groove 14 under the action of external force due to the influence of the self gravity, the condition that the pin shaft 12 is taken as an axis, the first elastic piece always works when the wind is small, the service life of the first elastic piece can be reduced, the limit groove 14 is arranged on the pin shaft 12, the limit block 15 is arranged on the connecting rod 11, when the limit groove 14 is in 0 to 4 levels, and the gravity of the display screen 3 is added, the limit block 15 is not enough to be separated from the limit groove 14, and when the wind is in 5 to 8 levels, the upper end of the display screen 3 is in contact with the wedge-shaped surface 13 to incline, and the limit block 15 can be separated from the limit groove 14 under the action, and the first elastic piece is generated, and the limit block is returned to the elastic piece to the position of the wedge-shaped surface 13 when the wind returns to the upper end to the limit groove to the 0 to the position when the limit groove is in the 4.
In the above embodiment, the reason why the external force is needed to disengage between the limiting groove 14 and the limiting block 15 is that the limiting block 15 can always slide on the surface of the pin shaft 12 with the same circular arc in the process of entering the limiting groove 14, the sliding process is not subject to resistance, whereas when the limiting block 15 is disengaged from the limiting groove 14, the blocking of the edge of the limiting groove 14 needs to be overcome, and the limiting block 15 needs to be moved from a lower position to a higher position, so that the limiting block 15 needs to overcome a certain resistance, the limiting block 15 can be elastically deformed, but the force required by the elastic deformation is generated, the wind force is in the level of 0 to 4, and the gravity of the display screen 3 is insufficient to overcome the force required by the elastic deformation of the limiting block 15.
When the wind is at the level 9 to 12, the advertisement is not convenient to show any more, and the display screen 3 needs to be protected, in the above embodiment, the lifting mechanism 9 drives the position adjusting unit to move downwards, all the display screens 3 move downwards by using the gravity of the display screens 3 and the gravity of the parts such as the base plate 7, and all the display screens 3 move to the lowest part of the outer frame 2, but the display screens 3 are still in a vertical state and still affected by wind force, if the display screens 3 can be in a horizontal state at this time, the wind force can be greatly reduced, and in the embodiment of the utility model, the guide groove 17 is arranged to solve the above problem.
Further, a vertical chute 16 is provided at the back of the display screen 3, the connection block 10 is slidably disposed in the chute 16 up and down, a second elastic member is connected between the connection block 10 and the lower end of the chute 16, a guiding groove 17 is provided on the outer frame 2 at the end position of the downward movement of the display screen 3, and the lower end of the display screen 3 corresponds to the guiding groove 17 (see fig. 3 and 6); specifically, when the wind is at 9 to 12 stages, the lifting mechanism 9 drives the position adjusting unit to move downwards, all the display screens 3 move downwards by utilizing the gravity of the display screens 3 and the gravity of parts such as the base plate 7, and after the lower ends of the display screens 3 are contacted with the guide grooves 17, the lower ends of the display screens 3 always give a thrust vertical to the inner walls of the guide grooves 17 and a force along the track direction of the inner walls of the guide grooves 17, the guide grooves 17 are arranged on the outer frame 2, the outer frame 2 is difficult to push, so that the lower ends of the display screens 3 move along the track direction of the inner walls of the guide grooves 17, and in the moving process, the guide grooves 17 guide, simultaneously generate opposite acting forces on the lower ends of the display screens 3, so that the display screens 3 are pushed to deflect upwards by taking the pin shafts 12 as axes, in the stroke of the lifting mechanism 9 driving the reciprocating mechanism to move to the lowest position in the outer frame 2, when the deflection of the display screen 3 is blocked by the guide groove 17, the display screen 3 has a tendency of being pushed to move upwards, and at the moment, the display screen 3 is in an inclined state, and the connecting block 10 can slide downwards in the sliding groove 16, so that the connecting block 10 can continue to move downwards along with the reciprocating mechanism, the first elastic piece is extruded, and as the connecting block 10 moves downwards, the rotating shaft position of the display screen 3 is lowered, and the display screen 3 is in an inclined state, so that the display screen 3 can continue to deflect along the inclined direction, when the reciprocating mechanism is lowered to the lowest point, the display screen 3 is basically in a horizontal state, and when wind flows through the position of the display screen 3, the resistance of the display screen 3 to wind is greatly reduced, so that a further protection effect is provided for the display screen 3.
Preferably, the groove wall of the guide groove 17 is composed of a first inclined surface 18, a second circular arc surface 19 and a third inclined surface 20, the second circular arc surface 19 is positioned at the lower end positions of the first inclined surface 18 and the second inclined surface, and when the lower end of the display screen 3 enters the guide groove 17, the lower end of the display screen is in sliding contact with the first inclined surface 18, the second circular arc surface 19 and the third inclined surface 20 in sequence (see fig. 3, 5 and 6); specifically, the lower end of the display screen 3 moves downwards and contacts with the first inclined surface 18 firstly, then moves downwards along the inclined direction of the first inclined surface 18, so that the display screen 3 deflects by taking the pin shaft 12 as an axis, when the lower end of the display screen 3 passes through the second circular arc surface 19, the second circular arc surface 19 plays a role in adjusting the direction of the display screen 3, so that the deflection angle of the display screen 3 is larger, and after the lower end of the display screen 3 reaches the third inclined surface 20, the display screen 3 also deflects gradually to a horizontal state, and thus the guide groove 17 plays a guide role on the display screen 3, so that the display screen 3 deflects to the horizontal state from a vertical state.
Preferably, the display screen 3 is in a stroke part between the upward stroke end and the downward stroke end, and the connecting block 10 is always abutted against the upper end of the sliding groove 16 (see fig. 3 and 5); specifically, utilize display screen 3 self gravity for spout 16 upper end is supported with connecting block 10 all the time, can drive the in-process that display screen 3 reciprocated at reciprocating mechanism, display screen 3 can not appear the problem of rocking from top to bottom, if connecting block 10 upper and lower surface all is connected with the upper end and the lower extreme of spout 16 respectively, then because display screen 3 self inertial action's in-process that reciprocating mechanism drove display screen 3 reciprocated, just can make display screen 3 appear rocking problem, thereby influence the dynamic bandwagon effect of advertisement, still can influence display screen 3 and move up its upper end and wedge 13 contact and take place the going on of tilting process, namely display screen 3 upper end and wedge 13 contact the back, can receive the reaction force from wedge 13, thereby produce the resistance to display screen 3, make the display unable take place the slope, but take place the condition down on connecting block 10, just so can't be according to the wind-force size, the inclination of more accurate control display screen 3.
Further, a triangular block 21 is hinged at the high end position of the third inclined surface 20, a third elastic member (the third elastic member is a torsion spring) is arranged at the hinge position of the triangular block 21, the cross section of the triangular block 21 is an obtuse triangle, the inclined side of the triangular block faces the inside of the outer frame 2, and the lower end of the display screen 3 pushes up the downward side of the triangular block 21 in the movement stroke of the third inclined surface 20 (see fig. 3, 5 and 6); specifically, in the stroke that display screen 3 lower extreme passed through third inclined plane 20, the display screen 3 lower extreme can be contacted with triangular block 21, and along with the deflection of oneself produces the effect of toppling to triangular block 21, make triangular block 21 with its articulated department of frame 2 take place the deflection, after display screen 3 is in the horizontality, triangular block 21 also stops deflecting, and this in-process, third elastic component elasticity increases, triangular block 21 stops deflecting the back, can push down display screen 3 lower extreme under the resilience effect of third elastic component, cooperate display screen 3 self gravity again, make display screen 3 can be stable lie in frame 2 bottom, next time the inclined plane of triangular block 21 can play the water conservancy diversion effect to wind when the inclined plane of triangular block 21 flows, make wind upwards flow along the inclined plane slope, no longer produce the blowing force to display screen 3, and can produce the negative pressure effect at the tail end of triangular block 21, further produce down pressure to display screen 3, make display screen 3 can be more stable lie in 2 bottoms, thereby better weather protection at the frame 3 is not damaged by wind.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (5)
1. The utility model provides a variable display device, includes the support, sets up frame and a plurality of activity that splice in the frame on the support display screen, each the display screen has a home position that is sharp range, its characterized in that still includes:
the position adjusting unit comprises a driving piece, wherein the output shaft of the driving piece is provided with a plurality of reciprocating mechanisms in parallel, the display screens are in one-to-one correspondence and are connected with each other, and the reciprocating mechanisms drive the display screens connected with the reciprocating mechanisms to change positions in the vertical direction based on the power of the driving piece;
the reciprocating mechanism comprises a rotating shaft connected with an output shaft of the driving piece and a plurality of round blocks arranged in parallel in the axial direction of the rotating shaft, wherein the circle center of the cross section of the rotating shaft is arranged eccentrically with the circle center of the round blocks, a plurality of base plates are arranged in the outer frame in parallel and vertically in a sliding manner in the axial direction of the rotating shaft, the round blocks are in one-to-one correspondence with the base plates, and the display screen is connected with the base plates;
a lifting mechanism is arranged in the outer frame, and the driving piece is connected with the lifting mechanism;
the back of the display screen is provided with a connecting block, the substrate is provided with a connecting rod, the connecting block is rotationally connected with the connecting rod through a pin shaft, a first elastic piece is arranged at the joint of the connecting block and the connecting rod, a wedge-shaped surface is arranged on the outer frame at the end position of the movement on the display screen, the lower end of the wedge-shaped surface is close to the substrate, and the upper end of the display screen corresponds to the wedge-shaped surface;
the back of the display screen is provided with a vertical chute, the connecting block is arranged in the chute in a vertically sliding way, a second elastic piece is connected between the connecting block and the lower end of the chute, a guide groove is formed in the outer frame at the position of the end point of the downward travel of the display screen, and the lower end of the display screen corresponds to the guide groove;
the groove wall of the guide groove consists of a first inclined surface, a second arc surface and a third inclined surface, the second arc surface is positioned at the lower end positions of the first inclined surface and the third inclined surface, and the lower end of the display screen is in sliding contact with the first inclined surface, the second arc surface and the third inclined surface in sequence when entering the guide groove;
the lifting mechanism drives all the reciprocating mechanisms to move upwards integrally, the reciprocating mechanisms drive the display screen to move upwards, the upper ends of the display screen are in contact with the wedge-shaped surface, and the upper ends of the display screen continuously extrude the wedge-shaped surface along with the fact that the display screen is driven to move upwards, and the upper ends of the display screen can move along the inclined direction of the wedge-shaped surface;
the lifting mechanism drives the position adjusting unit to move downwards, when the lower end of the display screen is contacted with the guide groove, the lower end of the display screen always gives a thrust vertical to the inner wall of the guide groove and a force along the track direction of the inner wall of the guide groove, and when the reciprocating mechanism descends to the lowest point, the display screen is basically in a horizontal state; the guide groove plays a role in guiding the display screen to enable the display screen to deflect from a vertical state to a horizontal state.
2. The device of claim 1, wherein the outer frame has a rectangular structure, and a plurality of movably spliced display screens are symmetrically arranged along two sides of the outer frame in a width direction, and two display screens at corresponding positions on two sides of the outer frame are connected to one reciprocating mechanism.
3. A variable display apparatus according to claim 1, wherein a distance adjusting member is provided between the rotation shaft and the circular block, and a distance between a center of a cross section of the rotation shaft and a center of the circular block is controlled by the distance adjusting member.
4. The variable display device according to claim 1, wherein the connecting block is fixedly connected with the pin shaft, the connecting rod is rotatably connected with the pin shaft, a limiting piece is arranged at a connection part between the connecting block and the connecting rod, and the limiting piece comprises a limiting groove formed in the pin shaft and a limiting block fixedly connected to the connecting rod.
5. A variable display device according to claim 1, wherein the connecting block is always in abutment with the upper end of the chute over a portion of travel between the end of the upward travel and the end of the downward travel of the display.
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