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A billboard and frame technology, applied in the field of billboards, can solve problems such as danger, inconvenient replacement of billboards, inconvenient disassembly of billboards, etc., to achieve the effect of easy assembly and disassembly
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[0019] The present invention will be further described below in conjunction with accompanying drawing:
[0020] A billboard is characterized in that it includes a column 1 and a fixed frame 2 fixed on the top of the column, the frame is rectangular, a protrusion 3 is provided in the middle of the top of the frame, and protrusions are provided at the ends of the left and right sides of the frame. Column 4, a billboard 5 is set under the protrusion and in the middle of the protrusion, vertical through holes 6 are provided at the left and right ends of the billboard 5, and horizontal blind holes 7 are provided on the left and right sides of the billboard 5. A rod 8 that can be inserted into the blind hole is set at the corresponding position of the convex post and the blind hole, and the end of the rod is connected to the stepping motor I9; the winding motor I10 is arranged above the through hole 6, and the wire is arranged at the end of the winding motor I10 I11, one end of the ...
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