A device (10) for the detachable connection of structural parts (80, 84) in an aircraft, comprising a clamping lever arrangement (12) associated with a first structural part (80) and a clamping pin (14) associated with a second structural part (84), wherein the clamping lever arrangement (12) comprises an eccentric shaft (20) rotatably mounted about a rotation axis (A) on the first structural part (80), a clamping lever (16) mounted eccentrically and swivellably with respect to the eccentric shaft (20) and a driving bushing (18) rotatably mounted relative to the eccentric shaft (20) about the rotation axis (A) and coupled in a geared manner to the clamping lever (16), wherein the clamping lever arrangement (12) can furthermore be displaced between a release position, a readiness position and a locking position.