Securing means for a container cap

A leakage protection unit for a container lid(1), comprises primary connection element(2) attached to lid, secondary connection element(3) attached to vehicle, and band(4) between them. The secondary element consists of pin(5) and anchoring member(6). The pin has groove on outside, and anchoring member overlaps pin in perpendicular direction to pin central axis. The band consists of e.g. POM.