Quick-Disconnecting Device, In Particular For Kite-Surf

A quick-disconnecting device, in particular for kite-surf, comprising at least one fixed element adapted to be made integral with a body of a user and at least one moving element having at least one operating connecting position in which the moving element is kept integral with the fixed element by interposing at least one blocking system that can be actuated by the user, and at least one operating disconnecting position in which the moving element is disconnected from the fixed element by actuating the blocking system by the user, the moving element being equipped with at least one first end adapted to make a connection, preferably shaped as a hook, with at least one terminal of a connecting element to be disconnected by the user by actuating the blocking system, the moving element cooperating with the fixed element through a lever-type dynamics around a fulcrum point interposed between the moving element and the fixed element, wherein the blocking system comprises at least one blocking pin, the fixed element being further equipped with at least one through-slit and the moving element further comprising a second end, opposed to the first end, equipped with at least one projection equipped with at least one through-hole, when the device is in its operating connecting position the projection and the through-hole being adapted to pass through the through-slit and the blocking pin being adapted to cross the through-hole in order to make the moving element integral with the fixed element while, when the device is in its operating disconnecting position, the blocking pin being completely extracted, upon actuation by the user, from the through-hole to disconnect the moving element from the fixed element.