The invention discloses a siphoning principle based low-water-level water
closet. The siphoning principle based low-water-level water
closet comprises a water
closet main body and a water tank, wherein the upper end of the water closet main body and the upper end of the water tank are located in the same plane, the water closet main body comprises a
toilet bowl and a blow-off
pipe, the lower end of the water tank is connected with the lower end of the
toilet bowl through a washing
pipe, the blow-off
pipe is also connected to the lower end of the
toilet bowl, the upper end of the toilet bowl isconnected with a circle of flushing inner
culvert, the flushing inner
culvert is connected to the water tank through a flushing pipe, and a circle of flushing holes are formed in the inner side of the flushing inner
culvert, have angles of 45 degrees and face to the toilet bowl. The siphoning principle based low-water-level water closet has the advantages that in accordance with difference of height of positions I, II and III and the principle of
physics, a siphoning effect can be formed; a flushing port is high in
water volume and high in pressure, thus, the siphoning force will be very large, and
dirt can be removed in shortest time; the flushing holes directly act on the blow-off pipe from a drainage valve, thus, the siphoning effect is better provided, and the effect of scouring
manure is improved; the water tank is globally level with the water closet, so that the water closet looks attractive, and materials and space are saved.