Drain outlet closing device for container used for products such as concrete or mortar, includes cylindrical stopper that can be inserted into cylindrical drain outlet so that slot in stopper fits over transverse rod in outlet

摘要

The closure device includes a stopper element (26) having two semi-cylindrical longitudinal elements (32,34) separated by a slot. The slot is passed over a transverse bar across a cylindrical element (16) of a drain opening (12) of a container (10) when the stopper element is pushed into the drain outlet, so that a cylindrical recess in the stopper snaps over the transverse bar to secure the stopper in position. A knob (29) is fixed to the end of the stopper.