Vacuum cleaner switch assembly

摘要

A switch assembly for a wet/dry vacuum cleaner is disclosed. The switch assembly includes a switch movable by a user between an ON position and an OFF position. An automatic shutoff assembly is operable in conjunction with the switch assembly to turn the switch to the OFF position in the event that a level of liquid within a tank of the wet/dry vacuum cleaner rises above a predetermined level. When triggered, the automatic shutoff assembly exerts a biasing force urging the switch toward the OFF position. A user can manually override the automatic shutoff assembly by providing a force sufficient to overcome the biasing force.

主权项

1. A wet/dry vacuum cleaner comprising:
a tank having an open top; a removable lid attached to the open top of the tank; a motor attached to the removable lid; a rotatable shaft extending from the motor; a vacuum impeller and a pump impeller each driven by the rotatable shaft; a switch having an ON position in which power is supplied to the motor and an OFF position in which power to the motor is interrupted; a float disposed in the tank; and a plunger assembly attached to the removable lid; a transmission rod connected between the float and the plunger assembly; and the plunger assembly having a spring and a pin, the spring being configured to exert a biasing force against the pin to urge the switch toward the OFF position in response to upward movement of the float.