US Patent 10085563 Chair capable of swinging forward and backward

The present application discloses a chair capable of swinging forward and backward, including a chair leg, a seat cushion, and a compression air rod that connects the chair leg and the seat cushion, where a bottom of the compression air rod is provided with a tapered sleeve, the tapered sleeve is disposed inside a cavity of the chair leg, an outer side of the tapered sleeve is enclosed by a soft sleeve, and the compression air rod swings by means of an interaction between the soft sleeve and a cavity wall of the chair leg.