Sewer manhole cover

Abstract

The subject of the application is a sewer manhole cover made of plastic or composite material, intended in particular for use in rainwater and sewage drainage systems, applicable in urban and industrial infrastructure installations and home sewer systems.The sewer manhole cover consists of two parts: a frame (1) and a body (2), releasably connected to each other, and is characterized in that the outer layer of the frame (1) and the body (2) is covered with an anti-slip ornament (3) made of divided circular risers (4) of a shape similar to rectangles, the body (2) is cylindrical and is provided with four mounting holes (5), and on the underside it has internal stiffening ribs (6) arranged radially in two circles, the frame (1) is shaped similar to a square with rounded tops and has a central circular hole (7) with a circular riser matching the shape and size of the body (2), and on the perimeter of the hole (7) on the underside there are four fastenings (9) with a pressed-in nut, additionally reinforced with ribs (10).