Patent ID: 8186941

Claim:
A swing structure for a ceiling fan comprising: a front cover being shaped as a ring, said front cover having its opposite sides respectively cut with a first U-shaped notch and a second U-shaped notch; a swing mechanism received in said front cover, said swing mechanism provided with a motor, said motor disposed with a main shaft at a location corresponding with a center of said front cover, said main shaft inserted through said front cover base to be pivotally assembled with a fan blade, said motor having its upper end fixed with a reduction motor, said reduction motor having one side pivotally fixed thereon with a driving wheel, said driving wheel pivotally connected axially with one end of a connecting rod; an intermediate aluminum ring assembled on an outer circumference of a weight center of said swing mechanism, said intermediate aluminum ring having one end provided with a swing spindle at a location corresponding with said first U-shaped notch, said intermediate aluminum ring having another end fixed with a hollow threading spindle at a location tallying with said second U-shaped notch, said swing spindle fitted thereon with a first three-way tube, said first three-way tube having its opposite ends respectively formed with two first horizontal end openings communicating with each other, one of said first horizontal end openings disposed with a sidewise fixing projection pivotally combined with another end of said connecting rod, a first vertical tube provided extending up between said first horizontal end openings, said swing spindle in said first horizontal end openings fitted thereon with at least one first bearing, said threading spindle fitted thereon with a second three-way tube, said second three-way tube having its opposite ends respectively formed with a second horizontal end opening communicating with each other, a second vertical tube extended upward between said second horizontal end openings, said threading spindle in said second horizontal end openings having at least one second bearing fitted thereon, said threading spindle bored with a threading opening at a location matching with said second vertical tube; a hanging tube formed with two fixing tubes respectively fitted and fixed in said first vertical tube and said second vertical tube, said two fixing tubes having their ends secured on at least one support base, said support base fixing said ceiling fan at a preset location; and said motor has its outer circumference assembled with an outer casing and said reduction motor is mounted on said outer casing, said outer casing having its lower end combined with said front cover, said intermediate aluminum ring having its upper circumferential edge bent toward an upper circumferential edge of said outer casing to be fixed on an upper end of said outer casing.