Anti-blocking device for municipal road drainage

Abstract

The invention relates to the technical field of municipal drainage, in particular to an anti-blocking device for municipal road drainage. The anti-blocking device comprises a water inlet pipe, a water outlet pipe, a filter residue collecting assembly and a filtering assembly, wherein the filter residue collecting assembly has a dirt collecting pipe and a guide pipe; the dirt collecting pipe is connected to the lower end of the water inlet pipe; the filtering assembly comprises an upper filter screen, a lower filter screen and an elastic part, the outer edges of the upper filter screen and the lower filter screen are connected with the inner circumferential wall of the water inlet pipe, and the elastic part is sleeved at the upper end of the guide pipe in an up-down sliding manner; the guide pipe is sleeved with a pressure spring, and the pressure spring drives the elastic part to move upwards to a position above the residue inlet in the initial state; and the middle parts of the upper filter screen and the lower filter screen are arched upwards. According to the invention, when filter residues on the upper filter screen and the lower filter screen are accumulated to a preset value, the elastic part moves downwards under the impact action of the filter residues and water flow, and finally, the middle portion of the upper filter screen and the middle portion of the lower filter screen are sunken downwards, the elastic part moves to correspond to the residue inlet, and the filter residues are discharged into the dirt collecting pipe from the residue inlet; and thus, automatic residue discharging of the filtering assembly is achieved, and high anti-blocking capability is achieved.

Description

technical field [0001] The invention relates to the technical field of municipal drainage, in particular to an anti-blocking device for municipal road drainage. Background technique [0002] Municipal road drainage refers to the measures taken to remove the accumulated water on the road surface. Usually, the road surface water flows into the street ditch according to the slope of the road surface, and then flows into the drainage pipe from the street ditch through the rainwater outlet, and then is discharged from the outlet of the drainage pipe to nearby sewage pools or rivers, lakes, seas and other water bodies. Urban road surface water drainage should be rapid and smooth, and water accumulation and water film should not be formed on the road surface, which will affect driving. [0003] In order to improve the drainage efficiency and quality of the existing municipal road drainage devices, a filter device is usually added to the drainage system to filter the discharged sew...

AI Technical Summary

Problems solved by technology

[0004] According to at least one deficiency of the prior art, the present invention proposes an anti-blocking device for drainage of municipal roads, which can automatically discharge slag from the filter screen to solve the problem of cleaning the filter screen after filtering in the existing drainage anti-blocking device Difficult, poor anti-blocking ability

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