Control device for deodorant in toilet

Abstract

Abstract PURPOSE:To make it possible to automatically deodorize and to eliminate the maintenance of a deodorant, by controlling the device for exhausting air in the toilet stool by means of signals which are outputted by a detector for detecting a person sitting on a toilet stool seat and by a gas detector for finding gas density in the toilet. CONSTITUTION:When a person sits on a toilet seat 14, a pressure switch 23, which is a detector for finding person's sitting and is located under the toilet stool, will be closed. When the pressure switch 23 is closed, the heating unit 19 of a gas detector is applied by DC voltage. At the same time, an air pump 18 is drive to exhaust the air in a toilet stool out of a toilet stool 11 through an exhaust duct 24. The gas detector 17 of semiconductor type located in a cylindrical holder 15 makes it easy to draw gas particles of an offensive odor gas in the toilet stool when driving the air pump 28. When its gas is adsorbed by the gas detector 17, the electric resistance of a resistor 20 of the sensor device placed in the gas detector 17, is reduced according to gas density. A ventilating fan 27 furnished in the toilet begins to start its operation, when the gas density reaches its specified value.

Inventors

• 👤 Takashi Yoshida
• 👤 隆 吉田

Bibliographic Details