| 摘要 |
<p>A system (1) for delivering a liquid composition (L) inside a toilet bowl (2) is described, which comprises: a) a container (3) of the active substance closed in a substantially air-tight manner and wherein said liquid composition (L) is subjected to a predetermined pressure; b) valve means (7) for delivering dosed amounts of said active substance comprising: a valve body (16) wherein a metering chamber (24) of the liquid composition (L) is defined; a shutter (23) displaceable in the metering chamber (24); an opening device (14) cooperating with the shutter (23), and being provided with deflecting means (45) for directing part of the flushing water towards and into the metering chamber (24) opening (8) of the liquid composition (L) and into the metering chamber (24). Advantageously, the system (1) according to the invention allows to deliver dosed and constant amounts of liquid composition (L) at each water flushing independently of both the amount of liquid composition (L) provided in the container (3) and of the frequency of the flushing operations.</p> |
