Sanitary device for sewerage channel

Claim 1

A sanitary device for a sewerage channel with an openable grating for catchment, said sewerage channel being covered by a concrete cover, an opening being formed on said concrete cover for receiving said grating for catchment of water, a rectangular supporting flange extending horizontally from a rectangular peripheral side surface of said opening of an concrete cover, a sanitary device comprising a bottom plate and four side walls which together define a space therebetween for accommodating a plurality of filtering plates each comprising a mesh for filtering water which is draining into a sewerage channel through said sanitary device, each of said four side walls having a plurality of apertures for passage of water to said sewerage channel, a rectangular flange being formed on an upper margin of said sanitary device and extending horizontally for retaining a sanitary device on said supporting flange, at least one of said four side walls being provided with a receiving means at an outer surface thereof, said receiving means having a chamber means for accommodating a first disinfecting container, for cleaning the air inside said sewerage channel via volatilization of a volatile disinfectant, a substantially hollow cylindrical tank being provided on an upper side of said bottom plate and extending upwardly and receiving a second disinfecting container, an actuating means being provided on a top surface of said second disinfecting container and means for injecting a pre-set quantity of liquid disinfectant, in response to actuation of said actuating means into said sewerage channel through an outlet formed on a bottom surface of said second disinfecting container and a hole formed on said bottom plate .