| 主权项 |
1. A toilet cleaning device, comprising
an element including a base configured to close an outlet pipe of a toilet so as to allow water to accumulate in the toilet above the base, and a tube having a vertical axis, connected with the base and having upper and lower ends provided with upper and lower openings which communicate with each other, so that when water accumulates in the toilet above the base and reaches the upper opening it flows through the tube and discharges through the lower opening of the tube into the outlet pipe of the toilet, said tube having a plurality of orifices spaced from one another along the tube in an axial direction; and an annular pin arranged on the tube and slidable along the tube in the axial direction, said annular pin having a single perforation which during sliding of the annular pin along the tube in the axial direction can coincide with one of the orifices of the tube so that water accumulated above the base flows from the toilet into the tube through the one orifice of the tube and the single perforation of the annular pin which coincides with the one orifice of the tube and then flows out of the tube, thereby a height of water above the base in the toilet is regulated. |
