Shutoff apparatus and system

A barrier device to be arranged on a base surface, comprising:

• an at least essentially tubular hollow body that defines a longitudinal direction of the barrier device;
• an actuation element arranged on a first free end of the at least essentially tubular hollow body and adapted to move relative to the at least essentially tubular hollow body between a release position and an anchoring position;
• a mechanical anchoring mechanism arranged opposite to the actuation element with reference to the longitudinal direction and comprises a movable locking element;
• an actuator rod fixed on the actuation element that extends in longitudinal direction and is movably mounted, wherein the actuator rod is arranged in the hollow body and is mechanically coupled to the anchoring mechanism;
• and
• a locking plate fixed relative to the at least essentially tubular hollow body;
• wherein:
• the actuation element comprises an actuation plate adapted to extend parallel to the locking plate in the release position, the anchoring position, and in each position between the release position and the anchoring position,
• each of the locking plate and the actuation plate respectively include at least one hole, wherein the at least one hole of the locking plate and the actuation plate together form at least one hole pair, and
• the at least one hole pair is aligned exclusively in the anchoring position, wherein in the anchoring position, the locking plate and the actuation plate extend perpendicular to the longitudinal direction.