| 摘要 |
The flushing devices carried by a chassis (2) having at each end (3,4) two front walls (5,6). These walls are connected in their lower parts by bars (7) and support several wheels (9). In the internal space delimited by the front walls is a tubular oscillating frame (14) which has in its upper part (17) several nozzles (18) and in its lower part a counterweight (16). The front wall tailpiece has a rotating connector (19) for a flexible hydraulic pipe. Each front wall plate has on its peripheral diameter several lateral guide wheels mounted on radial runners. The many eccentric positions of these wheels is determined by the locking of the wheel support leg within the runner and allows adjustments for diverse drain dimensions each wall. |
