| 摘要 |
A connecting socket and an assembly type precast manhole for direction switching are provided to couple a connecting pipe to a manhole simply, and to switch the direction of the connecting pipe to be connected with a branch pipe. An assembly type precast manhole for direction switching comprises a manhole body(10), a connecting socket(20), and a connecting pipe(30). The manhole body has a connecting hole(11). The connecting socket is mounted with male expansion rubber sealing materials along the outer peripheral surface, and has one end with a coupling flange(23). The connecting pipe includes a body part(31) formed with a corrugated pipe part(32), a screw coupling part(34) screwed in the connecting socket, a coupling flange(33) coupled with the coupling flange, and a branch pipe connecting part(36) coupled with a branch pipe. A plurality of levers(35) is mounted to rotate the connecting pipe easily. The flange is formed along the outer peripheral surface of the connecting socket to be supported by inner and outer walls of the manhole body. |
