| 摘要 |
The fall protection is for waste water wells and comprises an upper horizontal plate (3), which can be formed as a filter plate, resting on a telescopic foot (1,2) adjustable as to height and which supports on the well bottom, being adjustable to wells of varying depth. The plate which covers the well opening, with the exception of a gap around its periphery, rests firmly against the well bottom, and can be adjusted as to height with the aid of the telescopic foot and the cross bores (4) in its tube parts by pegs (5) which comprises a secure connection between the tube parts. The tube foot can consist of two or more tube parts. The hole distribution is such that it allows an adjustment in very small stages. |
