Connecting device for connecting a first pipe end to a second pipe end

A connection device for connecting a first line end to a second line end, wherein the first line end has a first connection section and the second line end has a second connection section;

• and the connection device comprises:
• a first connection member having
• a first counter-connection section, with the first connection member being connectable or connected to the first line end using the first connection section and the first counter-connection section;
• and
• a first locking section;
• a second connection member having
• a second counter-connection section, with the second connection member being connectable or connected to the second line end using the second connection section and the second counter-connection section;
• and
• a second locking section;
• a locking member that
• defines a longitudinal axis and having
• a first counter-locking section by which the locking member is connectable using the first locking section to the first connection member by means of a translatory movement along the longitudinal axis and/or a rotational movement about the longitudinal axis;
• and having
• a second counter-locking section by which the locking member is connectable using the second locking section to the second connection member by means of a translatory movement along the longitudinal axis and/or a rotational relative movement about the longitudinal axis, wherein
• the connection between
• the locking member and the first connection member;
• and/or
• the locking member and the first connection member is releasable.