Closing device for a ground material container, ground material container, and coffee machine comprising such a ground material container

A closing device for a container for material to be ground, the closing device comprising:

• a first closing element;
• a second closing element;
• an enclosure;
• and
• a drive unit;
• wherein the first closing element and the second closing element are arranged in the enclosure so as to be movable relative to one another;
• wherein the drive unit is coupled to the second closing element to move the second closing element relative to the enclosure and relative to the first closing element;
• wherein the enclosure has a first opening for the material to be ground, the first closing element has a second opening for material to be ground, and the second closing element has a third opening for material to be ground;
• wherein the first opening, the second opening and the third opening at least partially overlap one another in an outlet state and thus provide a through opening for the material to be ground to flow through the through opening;
• wherein, in the outlet state, the second closing element is movable relative to the first closing element;
• wherein the second closing element is engageable with the first closing element when the second closing element is moved relative to the first closing element;
• and
• wherein the second closing element is configured, when engaged with the first closing element, to move the first closing element therewith such that the second opening is displaced with respect to the first opening.