Precast combined inspection well

Abstract

The invention relates to the underground pipe spare part technical field, in particular to a prefabricated assembled inspection well which comprises a well base, a well shaft and a well cover. The well base includes a horizontal mouth and a vertical mouth, wherein, the vertical mouth of the well base is connected with the well shaft and the horizontal mouth of the well base is connected with a pipe. The well shaft is provided with the well cover which is of a flowerpot type. The flowers adapted to the surrounding can be planted in the flowerpot type well cover. An automatic air overflow device higher than the ground on the flowerpot type well cover is composed of a pipe higher than the ground for inspecting endocoele conduction. An automatic air overflow valve is arranged at the outlet ofthe pipe. When the gas pressure in the well increases to certain value, the pressure forces the open of the automatic air overflow valve and the air can run out, and then the automatic overflow valvecloses, thus effectively ensuring the security and preventing smell from spreading from the well. The automatic air overflow valve higher than the ground can be a mark for the inspection well; when the well cover is required to open for inspection, the automatic air overflow valve can be a handle for opening.

Description

technical field [0001] The invention relates to the technical field of underground pipeline fittings, in particular to a prefabricated combined inspection well that can be used for inspection and maintenance of rainwater and sewage, water supply wells, telecommunication wells and the like. Background technique [0002] Inspection wells in underground pipelines are also called pipeline wells and inspection wells. At present, the well body is generally built with bricks or cement under the ground to the ground, and a well cover is placed on the upper end of the well body. There is an opening on the side of the well body for connecting pipelines. The problem is that the construction period is long, it is easy to produce shrubs and weeds, it is inconvenient to dredge and the water flow is not smooth, and there is serious leakage at the connection between the pipeline and the well body, especially the connection between the traditional cement well and the plastic pipe. It will ca...

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