Water supply and drainage pipeline mounting assembly

The utility model discloses a water supply and drainage pipeline installation assembly, which belongs to the technical field of municipal drainage pipe systems, and comprises a first insertion pipe head, a bidirectional connector, a fixed connection block, a flange, a sealing ring and a second quick insertion pipe head, the first inserting pipe head and the second inserting pipe head are respectively connected with two different drainage pipeline systems; the two-way connector is connected with the first inserting pipe head and the second inserting pipe head. Flanges are arranged in the fixed connecting blocks so that the two casing heads can be matched and connected in a sealed mode. A movable buckle for quick assembly and disassembly is arranged on the second quick insertion pipe head; therefore, a user can conveniently match the movable buckle with the fixed connecting block so as to realize quick assembly and disassembly. Therefore, the water supply and drainage pipeline mounting assembly solves the techn