Locking unit

The locking unit (1) has a locking assembly (6) that is provided a spring portion (7) and a latch portion (8). The elastic spring portion is arranged to angle the locking assembly against an armature (9) or an armature rod (10) of an electromagnet (4) or against a bolt (11) held by armature or armature rod. The latch portion is arranged to block the movement of a piston (2) in a locking position and release the movement of piston in an unlocking position. The latch portion is equipped with a reinforcement portion (12) which acts in the movement direction of the piston.