Linear actuator with internal mechanical locking

摘要

A linear actuator (1) is disclosed that comprises: an elongated containing body (2) with a head (3); and a multi-start driving screw (9) that rotates around the longitudinal axis (A) of the actuator (1) and operatively cooperates with a nut screw (11); and means (15) for bidirectionally locking the driving screw (9) when it has reached its own final operating, pulling or pushing position, wherein such means (15) are equipped with holding means (16) for the screw (9) and cooperate with elastic means (18) in order to occupy an engagement position with the screw (9) for locking it, or a locking-release position of the screw (9). <IMAGE>