Manhole cover for manhole, waterway entrance or drain

摘要

The present invention is a manhole cover for a manhole, a waterway inlet or a drain, and has a reinforcing member (5) and a plastic body (7) coupled to the reinforcing member (5). The reinforcing member (5) is provided in a manhole, a water channel inlet or a water drain groove in which the reinforcing member (5) is closed by the manhole cover (1) or a water channel inlet or a water channel closed by the manhole cover. The plastic body (7) is configured to be supported by a supported support surface (3), and the plastic body (7) is a closed manhole, water channel inlet or closed water drain groove. And a manhole cover having a plurality of ribs (9) extending perpendicular to the surface (15) surrounding the surface or inclined at an angle greater than 45 °.