▎ 摘　　要

NOVELTY - The utility model claims a spray head made of graphene RFID antenna, the nozzle comprises a shell and a main body installed in the shell; the shell is provided with a feeding port connected with the storage cylinder and a discharging port connected with the outside; the main body is formed with a plurality of feeding passage connected with the feeding port and the discharging port; The main body can rotate along the circumferential direction relative to the shell so as to make the partial discharging channel connected with the feeding port and the discharging port. by setting a plurality of discharging channel; when spraying, through part of the discharging channel is connected with the feeding port and the discharging port; the rest discharging channel is in idle state; there is no slurry flowing; when the spraying is finished, through the rotation of the main body to change the feeding channel connected with the feeding port and the discharging port, so; the discharging channel stacked with slurry will not contact with the feeding port and the discharging port, avoiding oxidation; at the same time, the discharging channel of the connected feeding port and the discharging port after readjusting is not slurry, convenient for next spraying.