| 摘要 |
<p>A bicycle seat adjustable device includes an outer tube (10) and an inner tube (20) inserted into the outer tube (10). A piston seat (21) and a clamp unit (22) are connected to the inner tube (20). A valve unit (30) extends through the piston seat (21) and is located in the inner tube (20). The valve unit (30) includes a rod (31) extending through the piston seat (21) and reaches the bottom end (12) of the outer tube (10). A control height adjusting unit (40) has a control unit (41,44) connected to the bottom end (12) of the outer tube (10) and an action unit (42) is located outside of the outer tube (10). The control unit (41,44) has a push member (411,441) connected with the rod (31). The action unit (42) has a cable (421,429,451) extending through the outer tube (10) and connected to the push member (411,441). A switch (422,452) is connected to the cable. The push member is indirectly moved to move the rod to control the hydraulic path in the piston seat by pulling the cable.</p> |
