| 摘要 |
<p>An adjustable seat-tube assembly (10, 12) for a bicycle includes a seat tube (20) and a seatpost (30) telescoped inside the seat tube (20). For adjusting the seatpost (30) in altitude, a motor (45, 47) is wirelessly activated to drive a control lever (43) to push a valve stem (42) to perform linear displacement, thereby connecting or disconnecting an oil path inside a valve seat (41), and in turn making the seatpost (30) to extend from or retract into the seat tube (20) and changing the altitude of the saddle.</p> |
