| 摘要 |
<p>The invention provides an apparatus (5) for injecting a fluent substance into flush water of a sanitary appliance having a flush water duct (4) connected to a bowl, said apparatus including: a receptable (6) external to the appliance and containing the fluent substance; a formation (12) having at least one opening in a surface (14) washed over by the flush water during flushing of the appliance; and pumping means for pumping the fluent substance from the receptable into the formation and through said opening into the duct. The pumping means may be electrically powered and be operable responsively to at least one of: operation of a switching means by a user, a signal from a transducer for detecting flushing of the sanitary appliance; and a signal from a transducer for detecting an approach to the appliance by an intending user. The invention allows convenient replenishment of fluent substance (such as a cleaning or disinfecting agent) and long term automatic supply into the appliance.</p> |
