Water-saving fan-shaped cavitation nozzle

The utility model discloses a water-saving fan-shaped cavitation nozzle which comprises a nozzle body, a hollow cavity is formed in the middle of the nozzle body, the hollow cavity is sequentially divided into an inflow section, a flow stabilizing section, a throat part and a cavitation cavity from top to bottom, and a notch facilitating water flow spraying is formed in the bottom end of the cavitation cavity. And when the fluid medium in the nozzle flows into the throat part from the inflow section from top to bottom, the local pressure of the fluid medium can be reduced below the saturated vapor pressure of the fluid medium. According to the utility model, the advantages of cavitation cleaning in the aspects of water saving and cleaning effect are utilized; on the premise that the pressure and the flow of a water pump can be greatly reduced within an effective target distance, the same cleaning effect is achieved as a traditional high-pressure nozzle, and therefore the limitation ofthe volume of the clear w