FIELD: liquid atomisation or spraying devices.
SUBSTANCE: invention relates to digital spray pump for medium spraying having a finger-driven pump head, which can be displaced relative to pump housing between spraying position and initial position. Pump body has a guide part, also having a discharge nozzle, a pump chamber. Pump chamber has inlet and outlet valves, piston rod, pump piston, first spring acting between piston rod and pump piston, and a second spring that acts between the piston rod and the pump housing. Piston of the pump to form an outlet valve can be limitedly displaced relative to the piston rod between the position of the seal and the open position. Pump piston in sealing position abuts on sealing continuation of piston rod, and in open position allows medium passage between sealing extension and pump piston. In order to improve the finger spray pump of the type in question, that piston of pump in sealing position, as in open position, resting on two axially spaced apart areas on outer surface of piston rod. Invention also relates to a nozzle head for a spray pump, preferably driven by a finger of a spray pump.
EFFECT: disclosed group of inventions provides higher reliability of devices.
12 cl, 11 dwg
