DRAIN-PIPE CONNECTION STRUCTURE OF MANHOLE

摘要

A drainpipe connection structure of a manhole is provided to assemble a drainpipe with the inside diameter of a watertight body by inserting a connection groove of the watertight body into the external diameter of the connection pipe and assemble the manhole in the external diameter of the connection pipe adamantly. A drainpipe connection structure of a manhole comprises: a fixing connector fixed to the upper and lower parts of the inside of a connection hole(11); a connection pipe(15) which is connected to the inside diameter and in which a wing(16) is formed outside; a watertight member(12) which is inserted to the external diameter of the connection pipe and maintains the watertightness of manhole; and a watertight body(18) installed at the end part external diameter of the connection pipe. The watertight body comprises: a connection groove which is formed in the inside diameter and is coupled to the connection pipe; a rear joint groove fixed to a rear fastener(21); and a front joint groove fixing the external diameter of a drainpipe(25).