Patent ID: 7047609

Claim:
An extractor structure comprising a thread rod, a driving unit and an activating unit, wherein: one end of the thread rod is formed with a coupling section; the driving unit has a receptacle in which a differential nut is rotatably disposed, the driving unit being formed with an internal through hole, the differential nut being formed with a thread hole, the thread rod being screwed through the thread hole of the nut and the through hole of the driving unit, the driving unit having several extension arms extending from one end of the driving unit distal from the differential nut; and the activating unit is disposed under the driving unit, the activating unit including a threaded seat and a connecting seat positioned under the threaded seat, the threaded seat being formed with a central thread hole, the connecting seat being formed with a central through hole, the thread rod being screwed through the thread hole of the threaded seat and the through hole of the connecting seat, the threaded seat having several fixing arms outward extending from the center of the threaded seat, the connecting seat having several connecting arms outward extending from the center of the connecting seat, the fixing arms of the threaded seat and the extension arms of the driving unit being interlaced with each other, the extension arms being pivotally connected with the connecting seat, the fixing arms of the threaded seat having a length larger than a length of the connecting arms of the connecting seat, an outer end of each fixing arm of the threaded seat being pivotally connected with a claw, an activating arm being pivotally connected with a middle section of the claw, the activating arm being pivotally connected with the connecting arm of the connecting seat.