Domestic sewage filtering device

Abstract

The invention relates to the technical field of advanced environmental protection industry, and discloses a domestic sewage filtering device which comprises a filter tank, a sewer pipe communicated with an inner cavity of the filter tank is fixedly mounted at the bottom of the filter tank, a limiting block is fixedly connected to the inner wall of the sewer pipe, a fixing frame is placed in the inner cavity of the sewer pipe and located above the limiting block, a top head is fixedly mounted on the surface of the fixing frame, a reset spring is fixedly mounted in the middle of the fixing frame, and a filter screen is fixedly mounted at the other end of the reset spring. The top head is arranged at the bottom of the filter screen, and meanwhile, the filter screen is jacked up through the reset spring, so that when the filter holes are blocked, the gravity is increased due to the increase of a medium in the filter screen, the reset spring is compressed, the blocked filter holes are jacked up through the top head, and blockage cleaning is realized at the blocked positions of the filter holes at the bottom of the filter screen; water flow in the inner cavity of the filter screen can flow out through the filter holes in the bottom of the filter screen, and finally the purpose of automatic blockage clearing is achieved.

Description

technical field [0001] The invention relates to the technical field of advanced environmental protection industry, in particular to a domestic sewage filtering device. Background technique [0002] In modern families, there is a lot of domestic water, so the domestic sewage generated after use is relatively large. Many people will pour domestic sewage directly into the sewer, but over time, the sewer pipes will be blocked. To prevent the clogging of the sewer, people will consciously install a filter screen cover at the mouth of the sewer to filter their domestic waste. [0003] When the filter screen cover is used to filter domestic sewage, it mainly realizes the solid-liquid separation in the domestic sewage through the filter mesh of the filter screen cover, so that the filtered sewage is directly discharged from the sewer pipe, thereby avoiding the pollution of the sewage in the sewage. The phenomenon of solid impurities clogging the sewer pipe. [0004] However, in th...

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Problems solved by technology

[0005] In view of the deficiencies in the use of the existing sewage filtering device proposed in the background technology, the present invention provides a domestic sewage filtering device, which has the advantages of self-clogging, stable movement, and enhanced filtration and cleaning efficiency, and solves the above-mentioned problems. Technical Issues Raised in Background Art

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