LCD screen advertisement device assembled on shopping trolley
A technology of advertising device and LCD screen, which is applied in the direction of advertisements, advertisements, instruments, etc., can solve the problems of troublesome advertisement replacement and high cost, and achieve the effect of convenient advertisement playing times, low reinvestment cost, and low advertisement cost.
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[0031] see Figure 1 to Figure 3 , the LCD advertising device on the trolley shown in the figure, the housing 1 is a kind of cuboid, the front is a frame that can accommodate a 3-4 inch LCD screen 2, and the back is a protruding semicircular surface. The sound hole 3 corresponding to the internal speaker is used for sound amplification. Both ends of the housing 1 are respectively provided with a rod groove 11 with a diameter slightly larger than the push rod. The rod groove 11 is provided with a nut hole 12 for fixing the push rod. One end of the push rod 4 is also correspondingly provided with a nut hole 41. By inserting Rod groove 11 is fixed with the push rod 4 of housing 1 and its left and right ends with nut passing both nut holes, thereby realizes the purpose that is placed on the trolley.
[0032] Of course, in the above-mentioned embodiment, the housing and the push rod are fixed and non-rotatable. If the liquid crystal screen housing rotates around the push rod as th...
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