Locking device

A locking device with a first connection carrier and a second connection carrier, which are configured to be combined for establishing a detachable connection, wherein

• a rotation element is attached at the first connection carrier so as to be rotatable about a center axis;
• a locking bar is connected to the center axis, wherein the locking bar is rotatable by rotation of the rotation element between a locked position, in which the first connection carrier is inseparable from the second connection carrier, and an unlocked position, in which the first connection carrier and the second connection carrier are releasable from each other;
• the rotation element is provided in a circular inner region of the first connection carrier, the circular inner region being centered with respect to the center axis and having a radius being designated as a full radius;
• a plurality of elastic blocking heads is attached at the first connection carrier along a circumference of the inner region, wherein the blocking heads are movable from a blocking position to a release position by mechanical pressure, wherein a blocking head does not protrude into the inner region when in the release position, and protrudes into the inner region when in the blocking position;
• the rotation element comprises along its circumference segments which extend outwardly up to the full radius and segments which extend outwardly less than up to the full radius, wherein the segments extending outwardly up to the full radius move blocking heads bordering from outwards into the release position and segments extending outwardly less than up to the full radius leave blocking heads bordering from outwards in the blocking position, such that rotation of the rotation element is blocked by engagement of the blocking heads that are in the blocking position with a circumference of the rotation element;
• and
• the locking device comprises a flat key element having key tongues that are configured to be inserted into corresponding recesses in a surface of the rotation element, wherein the recesses are formed in those segments of the rotation element that extend outwardly less than up to the full radius, wherein the key tongues are, in the inserted state, configured to move the blocking heads bordering from outwards at the segments of the rotation element receiving the key tongues into the release position and to thereby allow rotation of the rotation element, and wherein opposing key tongues are symmetrically formed, so that the key element is insertable into the rotation element in two different orientations.

A locking device with a lock carrying connection carrier and a latching connection carrier, which are configured to be combined for establishing a detachable connection, wherein

• a rotation element is attached at the lock carrying connection carrier so as to be rotatable about a center axis;
• a locking bar is connected to the center axis, wherein the locking bar is rotatable by rotation of the rotation element between a locked position, in which the locking bar lockingly engages a holding tongue of the latching connection carrier, and an unlocked position, in which the locking bar does not engage the locking tongue of the latching connection carrier;
• the rotation element is provided in a circular inner region of the lock carrying connection carrier, the circular inner region being centered with respect to the center axis and having a radius being designated as a full radius;
• a plurality of elastic blocking heads is attached at the lock carrying connection carrier along a circumference of the inner region, wherein the blocking heads are movable from a blocking position to a release position by mechanical pressure, wherein a blocking head protrudes into the inner region substantially up to a circular line centered with respect to the center axis and having a radius designated as an inner radius, which is smaller than the full radius, when in the blocking position, and does not protrude into the inner region when in the release position;
• the rotation element comprises along its circumference segments which extend outwardly up to the full radius and segments which extend outwardly at a maximum up to the inner radius, wherein the segments extending outwardly up to the full radius move blocking heads bordering from outwards into the release position and segments extending outwardly at a maximum up to the inner radius leave blocking heads bordering from outwards in the blocking position, such that rotation of the rotation element is blocked by engagement of the blocking heads that are in the blocking position with a circumference of the rotation element;
• and
• the locking device comprises a flat key element having key tongues that are configured to be inserted into corresponding recesses in a surface of the rotation element, wherein the recesses are formed in those segments of the rotation element that extend outwardly at a maximum up to the inner radius, and wherein the key tongues are, in the inserted state, configured to move the blocking heads bordering from outwards at the segments of the rotation element receiving the key tongues into the release position and to thereby allow rotation of the rotation element, and wherein opposing key tongues are symmetrically formed, so that the key element is insertable into the rotation element in two different orientations.