DRIVING DEVICE FOR LIFTING BURIED SPRAYING HEAD

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 an inner wall of the case (2). An inflow opening (44) is arranged on a shell wall of the tangential flow generator (4). The hydraulic rotator (5) is disposed inside the tangential flow generator (4), and hydraulic rotator (5) has a stress surface (55) corresponding to the inflow opening (44). The hydraulic rotator (5) connects with the spraying head directly or indirectly via the main shaft.