Lamp box
The utility model relates to and a kind ofly is used to decorate or the lamp box of advertisement.
Existing lamp box, lamp sheet stationary installation or are installed on the swivel base thereupon and rotate in lamp box, and such lamp box picture no change or picture do not have innervation, make the people feel dull, no new meaning.In prior art, there is the principle of the motion ripple that utilizes two-layer grating to relatively move to produce different directions to make dynamic picture, even motion parts in the static lamp sheet picture or changing unit form the striped of certain orientation and density, lenticular lenses is manufactured with the striped of certain density, when watching picture, as long as twitch lenticular lenses with suitable speed along the direction that the lenticular lenses lines are vertical, just can make motion parts generation dynamic sense obvious and true to nature on the static lamp sheet, or picture is changed.
The purpose of this utility model is to adopt above-mentioned lamp sheet and lenticular lenses to relatively move and produce dynamically or the method for variation picture, and a kind of simple in structure, lamp box that picture can change or have dynamic sense is provided.
The purpose of this utility model realizes by following measure.It comprises casing, case lid, lamp sheet and light source, device has a transparent back panel in the lamp box, the aforementioned lamps sheet is overlying on this transparent back panel and relative fixed, a lenticular lenses is pressed close to have in lamp sheet surface, and the lenticular lenses upper/lower terminal is individually fixed on the spool, and gearing is by direct motor drive, make spool do the rotation of positive and negative direction and drive lenticular lenses and move back and forth with respect to the lamp sheet, so according to the design of the picture and the lenticular lenses striped of static lamp sheet, the picture of lamp box just changes or has innervation.
The circular arc of transparent back panel being made lordosis is planar, makes lenticular lenses be close to the lamp sheet, and the lamp box picture can be more clear.
Lamp sheet, lenticular lenses, transparent back panel, light source, spool, gearing and motor in the lamp box all are arranged on the inner support, and inner support and casing, case lid are hinged, the installation of lamp box like this, use convenient.
Below in conjunction with the embodiment accompanying drawing the utility model is described further.
Fig. 1 is embodiment 1 a lamp box structure synoptic diagram;
Fig. 2 is embodiment 1 a gear train structural representation;
Fig. 3 is a lenticular lenses mounting structure synoptic diagram;
Fig. 4 is hinged case lid, inner support, casing open mode synoptic diagram;
Fig. 5 implements 2 lamp box structure synoptic diagram;
Fig. 6 implements 2 gear train structural representations.
Embodiment 1, and lamp box has protecgulum 1, inner support 2, casing 3, on the protecgulum 1 display window is arranged.The planar transparent back panel 4 of circular arc of the lordosis of being made by organic glass is fixed in the front of inner support 2, the picture of lamp sheet 5 is made up of two to four width of cloth figure, this two to four width of cloth figure on the lamp sheet with alternate the making of horizontal fillet shape, the grating of lenticular lenses 6 is the horizontal raster of corresponding spacing, lamp sheet 5 is overlying on the convex surface of transparent back panel 4, and pushes down two edges to be fixed on the transparent back panel 4 with screw.Stage casing, lenticular lenses 6 upper end is fixed on the upper winding shaft 7, and the stage casing, lower end is fixed on the lower winding shaft 8, and upper and lower spool 7,8 is bearing on the inner support 2 and lays respectively at transparent back panel 4 upper and lowers, is fixed with operating rod 701,801 respectively on the upper and lower spool 7,8.The back device of inner support 2 has gear train 9, and motor 10 devices are in the front of inner support 2, and its axial processus aboralis is for the inner support back.Gear train 9 is by cam 901, oscillating deck 902, last supporting roller 903, following supporting roller 904, upper connecting rod 905, lower link epimere 906 is formed with hypomere 907 and extension spring 908, cam 901 is contained on 10 on the motor, oscillating deck 902 usefulness bearing pins 909 are hinged on the inner support 2, on, following supporting roller 903, on 904, relatively be located on the oscillating deck 902 down, upper connecting rod 905 1 ends and oscillating deck 902 are hinged, the other end and upper winding shaft operating rod 701 are hinged, lower link epimere 906 upper ends and oscillating deck 902 are hinged, lower link hypomere 907 lower ends and lower winding shaft operating rod 801 are hinged, are being connected extension spring 908 between lower link epimere 906 and the hypomere 907.A plurality of jacks 702,802,910 that are used to change upper and lower pull bar 905,906,907 articulated position are all arranged, to change the rocking bar length of mechanism on upper and lower spool 7,8 and the oscillating deck 9.Be installed on as the light pipe 11 of light source and be positioned on the inner support 2 after the transparent back panel 4, extension spring 908 tensioning lenticular lenses 6, the both sides of lenticular lenses 6 upper and lower ends are held with the little extension spring 12 that is loaded on the inner support 2 respectively, guarantee view picture lenticular lenses tensioning and are close to reliably on the lamp sheet 5.During work, motor 10 drives cam 901 and rotates, cam 901 is pushing away upper and lower supporting roller 903,904 and is causing oscillating deck 902 upper and lower swings, upper connecting rod 905 and lower link 906,907, the extension spring 908 hinged with oscillating deck 902 just drives upper winding shaft 7, lower winding shaft 8 comes back rotation with positive and negative direction, realized relatively moving of lenticular lenses 6 and lamp sheet 5, along with moving of lenticular lenses 6, two to four width of cloth figure in the lamp box on the lamp sheet 5 just display in turn repeatedly.
Embodiment 2, and except gear train, other structures are all identical with embodiment 1.Its gear train 13 is by cam 1301, oscillating deck 1302, supporting roller 1303, extension spring 1304, upper connecting rod 1305, lower link 1306 and extension spring 1307 are formed, cam 1301 is contained on 10 on the motor, oscillating deck 1302 is hinged with bearing pin 1308 and inner support 2, supporting roller 1303 is arranged on the oscillating deck 1302, upper connecting rod 1305 lower ends and oscillating deck 1302 are hinged, the upper end is hinged with upper winding shaft operating rod 701, one end of extension spring 1304 is connected on the inner support 2, the other end hauls oscillating deck 1302, supporting roller 1303 is pressed against on the cam 1301 all the time, lower link 1306 lower ends and lower winding shaft operating rod 801 are hinged, the upper end is connected with extension spring 1307, and extension spring 1307 other ends are connected on the inner support 2 with tensioning lenticular lenses 6.
Advantage of the present utility model: lenticular lenses is tensioned and is close to the transparent back panel convex arc surface On the lamp sheet, no light leak between lenticular lenses and the lamp sheet and make picture more clear; Master in the lamp box Want parts, mechanism's concentrated setting on inner support, case lid, inner support, casing are hinged, The manufacturing of lamp box, installation and use are simple, convenient.