| 摘要 |
A manhole forming apparatus is provided to form a manhole having an inlet and an outlet at various angles by regulating the arrangement angle of half spools variously without replacing the entire outward frame. The invention relates to a manhole forming apparatus for insert-forming a half spool to an inlet and an outlet of a manhole through an outward frame and an inward frame, which includes an outward frame(100) forming an outward shape of a manhole and having at least one or more long holes(120) to form an inlet and an outlet of a manhole, an inward frame located on the inside of the outward frame to form an inward shape of the manhole, and a support unit(300) supporting a half spool insert-formed to a manhole and having many coupling holes(311) to couple many bolts(131) formed around the long hole, a plate(310) to cover the long hole of the outward frame and to prevent the leakage of concrete through the long hole, a pipe fixture to penetrate and couple a half spool and a balance case(370) projected around the pipe fixture and coupled with a balance bolt(390) to support the rear of the half spool. |
