Patent ID: 7455543

Claim:
An electric plug connector comprising: a guide sleeve having an outer surface; a connector part having a housing containing contact elements, wherein the connector part is attachable to the guide sleeve; a bayonet ring on the connector part for rotatably engaging with the guide sleeve to spirally move between an initial position and a final position, wherein while the connector part is attached to the guide sleeve the bayonet ring locks the attachment between the connector part and the guide sleeve by engaging with the outer surface of the guide sleeve when the bayonet ring is in its final position; and a locking button arranged on the bayonet ring to slide with the bayonet ring relative to the guide sleeve as the bayonet ring moves between its initial and final positions, wherein the locking button is displaceable relative to the outer surface of the guide sleeve between an initial position and a final position, wherein the locking button includes a latching hook and at least one pin that interact with the outer surface of the guide sleeve to enable the locking button to move between its initial and final positions, wherein the latching hook and the pin engage with the outer surface of the guide sleeve when the locking button is in its final position, wherein while the bayonet ring locks the attachment between the connector part and the guide sleeve the locking button secures the locking of the attachment when the locking button is in its final position.