| 摘要 |
An installation structure of a sewage branch pipe is provided to guide sewage from a gutter to a sewer pipe, and to protect the sewer pipe by forming a connection hole in an upper part of the sewer pipe and bi-directionally connecting the gutter to a manhole. A sewage branch pipe installation structure includes a rectangular concrete base(110) having a first hemispheric seating groove(111) and plural anchor bolts(113) protruded at both sides of the first seating groove, a sewer pipe(120) provided with a rectangular connection hole(121) and placed in the first seating groove, a support bar(130) having a first assembling plate with a first bolt hole combined with the anchor bolt, a second seating groove in which the sewer pipe is inserted, a first drain hole(135) penetrated vertically corresponding to the connection hole of the sewer pipe and a second assembling plate with a second bolt hole, a gutter(140) having an inlet, an insertion sill protruded in an outer periphery of the inlet and a third bolt hole combined with the second assembling plate by an assembling bolt, a water cut-off plate(150) installed between a lower part of the support bar and an upper part of the sewer pipe and provided with a second drain hole, and a connecting pipe(160) combined with the insertion sill of the gutter and connected to a manhole. An inclined surface(139) is formed around the first drain hole of the support bar. |
