| 摘要 |
A height-adjustable apparatus, including a chassis, an actuation unit, an adjustment unit, and an elastic unit, is disclosed. The chassis has a positioning unit and an opening. The actuation unit, movably disposed on the chassis, had a first hole and a first engagement part. The first hole accommodates the positioning unit. The adjustment unit passes through the opening and is movably disposed on the chassis. The adjustment unit has a plurality of second engagement parts. The elastic unit is disposed in the first hole and between the positioning unit and the actuation unit. When the actuation unit is actuated, the first engagement part disengages with the second engagement part to allow movement of adjustment unit. When the actuation unit is non-actuated, the elastic unit forces the first engagement part to engage with a selected second engagement part to lock the adjustment unit.
|
