Docking station for portable computer

A docking station, suitable to be connected to a portable computer, comprising:

• a housing, having a first constraining structure and a second constraining structure;
• a sliding block, disposed in the first constraining structure;
• a pulling element, disposed on the housing and having a pulling portion and a pushing portion, wherein the pulling portion is exposed out of the housing and the pushing portion contacts to the sliding block;
• a first elastic element, connected between the housing and the sliding block;
• a plurality of first hooks, disposed on a raising cover and driven by the sliding block, wherein the raising cover is disposed on the housing;
• a linkage, disposed in the second constraining structure of the housing and having a first end and a second end, wherein the first end is connected to and driven by the sliding block;
• and
• a plurality of second hooks, disposed in the housing and driven by the second end of the linkage,
• wherein when pulling the pulling portion of the pulling element, the pushing portion pushes the sliding block to move in the first constraining structure towards a first direction, the first hooks and the linkage are driven by the sliding block so as to both move towards a second direction, the linkage drives the second hooks to move towards the second direction, and the first direction and the second direction are perpendicular to each other.