Patent ID: 8424422

Claim:
An adjustable socket structure comprising: a body including a first groove disposed on a rear surface thereof, a second groove with a smaller diameter fixed on a bottom end of the first groove, a first notch formed on the first groove, a number of slots radially arranged on a front end of the body and communicating with the second groove; a plurality of paws, each including a sliding block to be movably retained in the slot, and the sliding block including a first hole formed on a rear side thereof; a number of connecting rods, each being movably fixed in the second groove and including a first axial shank disposed on one side thereof to be rotably inserted in the first hole and a second axial shank fixed on another side thereof; a driving shaft including an axial portion and a disk portion located at a front end of the axial portion, wherein the axial portion includes a square bore, and the disk portion is rotated in the first groove and includes an outer diameter which is larger that the axial portion and three second holes to insert the second axial shanks of the connecting rods so that the driving shaft is rotated to actuate the paws to move in the slots respectively by using the connecting rods; a retaining ring being helical and retained in the first notch to abut against a rear end of the disk portion of the driving shaft.