| 摘要 |
<p>A liquid sprayer (20) is provided. This liquid sprayer includes a bottle (22) having an opening and a sprayer housing attached to the bottle. This sprayer housing includes an electric motor (26), a voltage source for powering the electric motor, a pump (28) driven by the motor, a switch (40) for completing an electrical circuit, a nozzle mechanism attached to the sprayer housing for spraying a liquid. The liquid sprayer also includes a venting mechanism which comprises a vent housing (32) having an inner surface and an outer surface, and a translating piston (30) disposed in the vent housing. The sprayer housing also includes a trigger (34) movably connected to the sprayer housing for closing the switch and translating the piston, a first vent tube (52) extending from the opening of the bottle to a first opening (132) of the vent housing, a second vent tube (58) extending from the second opening (232) of the vent housing to the first opening of the nozzle mechanism, a pump supply tube (54) extending from the opening of said bottle to an inlet of the pump and a pump discharge tube (56) extending from the outlet of the pump to the second opening of the nozzle mechanism.</p> |
