| 摘要 |
PURPOSE: A manhole with a manhole cover locking function is provided to prevent a manhole cover from being separated from a manhole frame using an elastic spring and a fixing unit installed on the manhole cover. CONSTITUTION: A manhole(10) with a manhole cover locking function comprises a cover frame(20), a manhole cover(30), a fixing unit(40), a support unit(50), and an elastic spring(60). A hanging protrusion(21) is formed along the inner circumference of the cover frame, and a support wing(22) is formed along the outer circumference of the cover frame. The manhole cover is inserted into the cover frame and has a fixing part(31). The fixing unit comprises an actuating rod(41) and a pressure head(42). The actuating rod is inserted into an actuating hole(312) of the fixing part. The support unit comprises a hanging panel(51) and a fixing bolt(52). The hanging panel is fastened to the end of the actuating rod. The elastic spring is fitted to the actuating rod and presses the pressure head of the fixing unit. |
