| 摘要 |
An assembly sealing gasket for a manhole structure is provided to save an installation cost and a working time by closely sealing an underground distribution line along the diameter of the underground distribution line. An assembly sealing gasket for a manhole structure is composed of an inside and outside disk fixture, an inside and outside circulation sealing disk(20,20a), and a clamping band(30). The inside and outside disk fixture is fixed at a part adjacent to an inner side and an outer side of a conduit line of an underground structure(40) and supports the inside and outside circulation sealing disk. Inside and outside circulation sealing disk is fixed axially in the inside and outside disk fixture and positions an airtight hole(22) on the extension line of the conduit line. The clamping band is fixed at the airtight hole and airtightly fixes the underground line passing through the airtight hole. |
