| 摘要 |
PURPOSE: A frame for a manhole of a variable inverter type and a manhole using the same are provided to prevent sewage and wastewater from leaking out, and to reduce an error rate of the frame. CONSTITUTION: A frame for a manhole of a variable inverter type comprises an inner frame(10), an outer frame(20), a water channel(30), a connector(40), a fixing member(50), a fixture(60), and a coupling member(70). The inner frame is composed of a waterway part(15), and is inserted into the outer frame. The outer frame comprises waterway holes(22). The fixture is coupled to the edge of the waterway holes. The coupling member is penetrated through the water channel and the connector. |
