PUSH-DOWN HEAD OF PUMP, AND PUSH-DOWN HEAD TYPE DISCHARGE PUMP

摘要

PPROBLEM TO BE SOLVED: To provide a discharge pump equipped with a push-down head of the type in which a nozzle is opened and closed by advancing and retracting a valve rod member by a lever member and a first pressing means, wherein a second pressing means is provided between the base and the tip of the valve rod member to prevent back flow of air. PSOLUTION: A push-down head type discharge pump has a head body 24 configured by providing a liquid flow pipe 36 to the lower surface of a laterally facing cylinder section 30 so as to extend vertically downward from the lower surface, the liquid flow pipe communicating with a stem 6 of a discharge pump, the cylinder section having a nozzle 34 opened at the front thereof. When the head body 24 is pushed down, a valve rod member 52 mounted in the cylinder section 30 is advanced and retracted. The valve rod member 52 is composed of the base 58 and the tip 66, and a second pressing means 70 is mounted between the base 58 and the tip 66. PCOPYRIGHT: (C)2010,JPO&INPIT