| 摘要 |
A driving device for a lifting buried spraying head includes a case (2), a filter (3) provided in the lower end of the case (2), and a spraying head driving unit disposed inside the case (2). The spraying head driving unit connects with a spraying head located on the top end of the case via a main shaft, and the spraying head driving unit drives the spraying head to rotate and spray water. Wherein, the spraying head driving unit comprises a tangential flow generator (4) and a hydraulic rotator (5). The tangential flow generator (4) is a small case structure which is hollow, and a water supply gap is formed between the tangential flow generator and the inner wall of the case (2). Inflow openings (44) are arranged on the shell wall of the tangential flow generator (4). The hydraulic rotator (5) is disposed inside the tangential flow generator (4), and the hydraulic rotator (5) has stress surfaces (55) corresponding to the inflow openings (44). The hydraulic rotator (5) connects with the spraying head directly or indirectly via the main shaft. |
