Patent ID: 9644362
Date: 2017-05-09
CPC Classifications: E03D

Claim:
1. A urinal with a sanitation device that includes a trap unit having a liquid seal formed by urine, the entire trap unit being interchangeable, the urinal comprising: a bowl portion including a standing wall portion facing a user and a bottom surface portion that guides urine received by the standing wall portion to a drain hole; a trap unit that retains urine flowing in from the bowl portion to form a liquid seal, and that communicates with a drain tube, the trap unit containing a first chemical agent dissolved by contact with the urine; a liquid agent ejection unit for ejecting a liquid agent to the trap unit for dissolving the first chemical agent within the trap unit; a chemical liquid ejection unit for ejecting a chemical liquid containing a second chemical agent that differs from the first chemical agent to the bowl portion an use state detection unit for detecting the state of use of the urinal; and a control unit for controlling the liquid agent ejection unit on the basis of the detecting result of the use state detection unit, wherein the control unit controls the liquid agent ejection unit so that the total amount of the liquid agent flowing into the trap unit in a prescribed period is smaller when the frequency of use of the urinal is high during the prescribed period than when the frequency of use of the urinal is low during the prescribed period, and wherein the control unit controls the chemical liquid ejection unit so that a reduction in the amount of the liquid agent ejected from the liquid agent ejection unit when a transition is made from a state where the frequency of use of the urinal is low to a state where the frequency of use of the urinal is high is larger than a reduction in the amount of the chemical liquid ejected from the chemical liquid ejection unit to the bowl portion when a transition is made from a state where the frequency of use of the urinal is low to a state where the frequency of use of the urinal is high.