Abstract: A locking device for skates constituted by a U-shaped frame for supporting a shoe, and including a first wing and a second wing between which two or more wheels are pivoted and arranged mutually in-line. An eccentric lever, arranged outside the first wing, is connected to a pusher which is slidingly associated with the first wing and with a pivot. The pivot is rigidly coupled to the second wing and is arranged in the interspace formed between two of the wheels which are mutually adjacent, the wheels interacting, during compression, with at least one elastically compressible element which is coaxial to the pusher.