Patent ID: 7921476

Claim:
Swimming goggles comprising a frame unit, lenses assembled on the frame unit, and a strap unit, said strap unit comprising at least a head strap with a plurality of stop grooves therein, and a buckle for securing and adjusting the head strap, the buckle including: a base having a first axis and a second axis respectively formed on opposing ends thereof for supporting the head strap, a first abut portion and a second abut portion being formed on the base and being respectively spaced appropriately from the first axis and the second axis; and a press portion pivoted between the first abut portion and the second abut portion and movable radially relative to the base, and the press portion comprising a first stop portion and a second stop portion respectively adjacent the first axis and the second axis, an operating portion between the first stop portion and the second stop portion, and a first branch and a second branch respectively on opposite sides of the operating portion, the first branch and the second branch respectively abutting against the first abut portion and the second abut portion; wherein when the operating portion is pressed downwardly, the first branch and the second branch respectively abut against the first abut portion and the second abut portion, operating with double fulcrums, forcing the first stop portion and the second stop portion to move upwardly, such that the head strap is adjustable in length by controlling abutment against the stop grooves.