MANUAL LIQUID DISPENSING DEVICE FOR SPRAYING LIQUID

摘要

This invention relates to a manual liquid dispensing device for spraying liquid by squeezing the trigger (14) thereof. An adapter (26) is inserted into a cylinder bore (25) forming a pressurizing chamber. A piston (15) is reciprocately mounted within the cylinder bore or the cylinder adapter. This adapter has an inlet communicating with the intake portion (18) and an outlet (48) communicating with an outlet passage (19) to a nozzle hole (22) formed at the bottom end thereof. A valve (50) advantageously formed is attached to the end of the adapter to open only the inlet at pressure reducing time of the pressurizing chamber and to open only the outlet at pressurizing time. This valve is made of elastic material as a single unit.