Anti-backflow water filter for drainpipe

Abstract

The invention provides an anti-backflow water filter for a drainpipe, belongs to the technical field of fittings of sewers, and particularly to a water filter at a mouth of a sewer. The object of the invention is to provide an anti-backflow water filter for a drainpipe, the anti-backflow water filter is composed of an elastic funnel made from silica gel and a flushing cap water seal member, sewage can be prevented from flowing back, the deodorant effect is good, and the anti-backflow water filter can be used even if one of the parts breaks down, and is convenient to maintain. The adopted technical scheme is that a body is a cylinder having an upper opening, a filter cover is movably mounted to the opening, the lower portion of the body is fixedly connected with a flushing cap water seal member, the flushing cap water seal member comprises a U-shaped channel and a turnover cap, an opening at one end of the U-shaped channel is connected with the body in a sealing mode, and the other opening of the U-shaped channel is hinged with a matching turnover cap, the middle portion in the body is provided with a protruding ring by cooperation of internal and external steps and its own weight, the bottom of the protruding ring is sleeved with the elastic funnel made from silica gel, the outlet in the lower portion of the elastic funnel is flat and elastically sealed to form a closed deodorant structure.

Description

technical field [0001] The invention relates to an anti-backflow water filter for drainage pipes, which belongs to the technical field of sewer fittings, and in particular relates to a water filter for a sewage pipe mouth. Background technique [0002] Water filters are often used in ground drainage systems such as toilets, bathrooms, and kitchens in buildings. Most of the general water filters are covered with leaky covers on the main body, and after the dirty water in the sewage pipes is rancid, the odor It can easily overflow through the holes in the leaky cover, filling the interior space with unpleasant smells. Contents of the invention [0003] The present invention overcomes the deficiencies in the prior art, and the technical problem to be solved is to provide an anti-backflow water filter for drainage pipes, which combines an elastic funnel made of silica gel and a flushing cover water seal to prevent sewage backflow and has a good odor-blocking effect. After one...

AI Technical Summary

Problems solved by technology

[0002] Water filters are often used in ground drainage systems such as toilets, bathrooms, and kitchens in buildings. Most of the general water filters are covered with leaky covers on the main body, and after the dirty water in the sewage pipes is rancid, the odor Easily spills through the holes in the leaky cover, filling the house with an unpleasant smell

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