Device for displacing a push/pull rod in steps

A device for displacing a pull/push rod (1) in steps, comprising:

• a housing (2),
• a drive lever (3), which is supported by the housing (2) and which displaces a drive element (4), which is configured to engage with the pull/push rod (1), forward in a clamping direction(S) relative to the housing (2) during an advancing actuation,
• a blocking element (5), which is supported by the housing (2) and which is configured to prevent a reverse displacement of the pull/push rod (1) in a release direction (L) directed opposite the clamping direction(S) in a blocking position and which is displaceable from the blocking position into a release position, in which a displacement of the pull/push rod (1) in the release direction (L) is possible, by actuating a release lever (6), which engages with the blocking element (5), and
• a movement limiting element (7) acting upon the blocking element (5), the movement limiting element (7) preventing the blocking element (5) from being displaced during the forward displacement of the drive element (4) entraining the pull/push rod (1), wherein the movement limiting element (7) is acted upon by a spring element (9) against the blocking element (5).