Inspection well lid facilitating drainage

Abstract

The invention provides a manhole cover for drainage, which includes a manhole cover body, and a drain hole is opened on the manhole cover body, and the feature is that the drain hole has two upper and lower hole sections with different apertures. The aperture of the upper hole section is larger than the aperture of the lower hole section so that the well cover body is formed with an annular boss in the drain hole, and the well cover body is provided with a filter screen at the mouth of the upper hole section of the drain hole, and the well cover body is formed on the annular boss. There is a movable plate supported by a plurality of elastic elements on the table, and the middle part of the movable plate is provided with a water hole with a diameter larger than that of the lower hole section, and the movable plate can be tightly connected to the lower side of the filter when the elastic element is in the original length state. Paste, the mesh size of the filter screen in the area corresponding to the water hole is 1/3 of the mesh size of the area covered by the movable plate, and the hole diameter of the upper hole section of the drainage hole is 8-15cm. The inspection well cover for drainage provided by the invention can not only increase the drainage volume, but also reduce the probability of pedestrians and objects falling into the well, so it has good popularization value.

Description

technical field [0001] The invention relates to a municipal road auxiliary equipment, in particular to a manhole cover for drainage. Background technique [0002] The inspection well is used in the turning, branching, falling, etc. of the drainage pipe to facilitate inspection and dredging. The scientific name is also called inspection well. The lid provided at the mouth of the inspection well is just the inspection well cover. The inspection well cover can be a sealed type inspection well cover, or a mesh type inspection shaft cover with pores, but no matter it is a sealed type or a mesh type inspection shaft cover, it must and should It has the function of drainage. Among them, the drainage of the sealed manhole cover mainly depends on one or two drainage through holes provided on the cover body. The aperture design of the one or two drainage through holes is not large. The through holes can also play a certain role. Once the precipitation is large, the drainage will be ...

AI Technical Summary

Problems solved by technology

Among them, the drainage of the sealed manhole cover mainly depends on one or two drainage through holes provided on the cover body. The aperture design of the one or two drainage through holes is not large. The through holes can also play a certain role. Once the precipitation is large, the drainage will be slow, which will cause serious water accumulation on the road; although the mesh type inspection water cover has excellent drainage capacity, but the mesh area is large and the pores are large, pedestrians If you don't pay attention when walking, you will drop your small valuables into the mesh, and then fall into the sewer, causing greater economic losses to pedestrians

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