Docking clampedit
From Memory Alpha, the free Star Trek reference
A docking clamp or mooring clamp is a mechanical device by which starships are held in place while docked at space stations such as Deep Space 9. Ships are unable to leave until the docking clamps are released.
In March of 2285, Captain Spock told Lieutenant Saavik to clear all mooring clamps before the USS Enterprise departed from the drydock orbiting Earth. (Star Trek II: The Wrath of Khan)
In 2285, Commander Hikaru Sulu reported to Admiral James T. Kirk that the mooring clamps were activated when the USS Enterprise docked at Earth Spacedock. (Star Trek III: The Search for Spock)
In 2369, Odo suggested that Deep Space 9 explode its mooring clamps so that Captain Jaheel could not blow his ship apart when he was forced to stay due to the aphasia virus moving through the station. (DS9: "Babel")
While under the influence of the Saltah'na energy spheres, Major Kira Nerys sealed the docking clamps of the Valerian transport, believeing it was shipping dolamide explosives. (DS9: "Dramatis Personae")
In 2370, Kira Nerys ordered that the docking clamps not be released on Vedek Winn's ship, as Winn was carrying a known collaborator. (DS9: "The Collaborator")
Docking latches, structural devices aboard Galaxy-class starships used to connect the saucer section to the stardrive section after a saucer separation, can be called docking clamps since they "clamp" shut the saucer section to the stardrive section. (TNG: "Hollow Pursuits")
