The at least one locking mechanism is adapted to support the manhole cover in a retained position between the aperture dosed position and the aperture open position.

The valve needle (19) executes a lifting stroke between a closed valve position and an open valve position.

Pinch protection functions only in the opening position – not in ventilation position.

The open position defines a refill opening.

The at least one locking mechanism is adapted to support the manhole cover in a retained position between the aperture dosed position and the aperture open position.

Opening Trade’ shall mean the opening of a position.

The second opening (25) can be closed by a lid (17) which can be pivoted between a first position in which it closes the second opening (25), and a second position in which it frees the second opening (25).

In a particular position, an aperture of the moveable shutter plate is aligned with an aperture of the first housing.

A position of the first aperture on the first drill guide is offset from a position of the second aperture on the second drill guide.

The first opening is offset from the second opening when the shutter is in a closed position.

The invention relates to a waste bag retaining device (1) having a frame (2) for retaining and/or for arranging a waste bag (3), wherein the frame (2) has an opening (4) in the usage position.

The opening having a location relative to the surface.

The thermostat may be fixed in the fully open position.

The locking device closes the opening only in a closed position.

The thermostat may be fixed in the fully open position.