6results about How to "Extend filter time" patented technology

The utility model relates to an anti-blocking type floor drain which comprises a shell and a fixing base installed on the shell, the top of the shell is provided with an installation part fixedly connected with a floor, the center of the top of the shell is sunken downwards to form an annular groove, a filtering structure is arranged in the annular groove, the filtering structure comprises a filtering panel, a filtering net and a leakage net, the filter panel, the filter screen and the leakage screen are sequentially arranged on the annular groove from top to bottom; the filtering panel covers the water inlet of the annular groove; the leakage net covers the water outlet of the annular groove; and the leakage net is designed to be hemispherical. The multi-layer filtering design is adopted, and the filtering panel, the filtering net and the leakage net are all detachably connected, so that disassembly and cleaning are easy. The filtering panel, the filtering net and the leakage net form gradient filtering, the filtering layer from coarse to fine is achieved, and pipeline blockage is effectively avoided. And secondly, the arc-shaped surface of the hemispherical leakage net can increase the accommodating space of impurities, the filtering time of the leakage net is prolonged, and frequent disassembly and washing are not needed.