Stacked type quantitative toilet cleaning agent dispenser

A stacked type quantitative toilet cleaning agent dispenser, comprising:

• a housing having an arcuate sidewall, an open top side, and an opposing closed bottom side for positioning on a surface;
• an inner box mounted in said housing such that a bottom chamber is defined within said housing between an outer bottom surface of said inner box and an inner bottom surface of said housing and an aisle is defined between an inner perimeter of said housing and an outer perimeter of said inner box and disposed in communication with said bottom chamber;
• and
• a cover covering said inner box with a top of said cover exposed on the outside of said housing, said cover comprising a first water inlet and a second water inlet, said first water inlet being disposed in communication with a space inside said inner box;
• wherein:
• said inner box comprises an open end tube, said open end tube having a first end connected to said cover and disposed in communication with said second water inlet and an opposite end inserted through said inner box and disposed in communication with said bottom chamber to keep said second water inlet and said bottom chamber in communication with each other and to isolate said second water inlet and said bottom chamber from said inner box;
• the stacked type quantitative toilet cleaning agent dispenser further comprises a first water outlet located in said cover for allowing communication between a space inside said inner box and the space outside said inner box, said first water outlet being disposed below a elevation of said first water inlet;
• said cover covers the said open top side of said housing;
• a second water outlet is located in said cover;
• for allowing communication between a space outside said housing and said aisle, said second water outlet being disposed below a elevation of said second water inlet.