Patent ID: 11541432

Abstract:
The present invention provides a cleaning machine capable of selecting a spray head independently of a rotational phase of a nozzle.The cleaning machine includes a slide, a pump, a main valve, a nozzle switching valve, a compressed air source, a swivel joint, a motor, and a nozzle block. The nozzle switching valve has an inflow chamber, a first chamber, a second chamber, a stem, a conical first valve element abuttable against the first valve seat, a conical second valve element abuttable against the second valve seat, a piston, and a spring. The swivel joint has a swivel housing, a swivel shaft, a first nozzle flow path and a second nozzle flow path. The nozzle block has a first nozzle connected to the first nozzle flow path and a second nozzle connected to the second nozzle flow path.