Filter device for preventing rainwater well and inner pipe from being blocked

Abstract

The invention relates to a filter device for preventing a rainwater well and an inner pipe from being blocked. The filter device for preventing the rainwater well and the inner pipe from being blockedcomprises a filter barrel, a guiding hole and an inserting plate, wherein the guiding hole is formed in an upper-end opening of the filter barrel; a sealing lower opening and the inserting plate withmultiple small holes are formed in a lower-end opening of the filter barrel; the filter barrel is divided into a large-aperture layer, a small-aperture layer and a settling layer from top to bottom;and reverse filter assemblies with filter holes are arranged in the initial positions of the upper ends of the inner parts of the large-aperture layer and the small-aperture layer. The filter device for preventing the rainwater well and the inner pipe from being blocked provided by the invention has the characteristics of wide application range, capabilities on guaranteeing the unobstruction of the rainwater well and improving the cleaning degree of the rainwater well, and the like.

Description

technical field [0001] The invention relates to the technical field of filter devices for urban rainwater wells, in particular to a filter device for avoiding blockage of rainwater wells and internal pipes. Background technique [0002] At present, in order to avoid large-scale water accumulation on the road surface in the rainy season and typhoon weather, southern cities are currently constructing urban rainwater well pipeline systems. During the construction process, ordinary manhole covers cannot remove small debris such as cigarette butts, paper towels, and leaves. Blocking outside the rainwater well makes the pipeline outside the rainwater well easy to cause blockage and other problems. In order to ensure the blockage of the rainwater well and reduce river pollutants, the hanging filter device is usually selected, and the hanging filter device has the following disadvantages: First 1. The filter device is small in size and can only accommodate a small amount of pollutan...

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Problems solved by technology

[0002] At present, in order to avoid large-scale water accumulation on the road surface in the rainy season and typhoon weather, southern cities are currently constructing urban rainwater well pipeline systems. During the construction process, ordinary manhole covers cannot remove small debris such as cigarette butts, paper towels, and leaves. Blocking outside the rainwater well makes the pipeline outside the rainwater well easy to cause blockage and other problems. In order to ensure the blockage of the rainwater well and reduce river pollutants, the hanging filter device is usually selected, and the hanging filter device has the following disadvantages: First 1. The filter device is small in size and can only accommodate a small amount of pollutants. It requires frequent maintenance by workers to ensure its normal operation and greatly increase maintenance costs; Under normal circumstances, the debris will be flushed out again, causing secondary pollution; third, the distance between the bottom of the filter device and the wellhead is relatively short, and the bottom will be damaged by water impacting the bottom for a long time, which will greatly affect the service life of the filter device; 1. The filter device cannot process the small particles of impurities and rot in the water, so that the small particles of impurities and rot enter the bottom of the rainwater well, causing the problem of sedimentation and rot in the rainwater well, and this part will cause river pollution.

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