Nodular cast iron prefabricated assembly type drainage inspection well

Abstract

The invention discloses a nodular cast iron prefabricated assembly type drainage inspection well which comprises an inspection well body, and the inspection well body comprises a well body section located on the lower portion and a well shaft section located on the upper portion. At least one water inlet section is arranged between the well body section and the well shaft section, and an adjustingsection used for adjusting the elevation is arranged between every two adjacent water inlet sections and / or between the well body section and the water inlet section located at a lowest position and / or between the well shaft section and the water inlet section located at an uppermost position; the well body section is provided with a water outlet used for being connected with a water outlet pipe,and the water inlet section is provided with a water inlet used for being connected with a water inlet pipe. A bell and spigot assembly structure is adopted between every two adjacent sections of theinspection well body. A limiting and stabilizing mechanism used for preventing the water inlet section and the adjusting section from moving in the radial direction and enabling the water inlet section and the adjusting section to rotate in the circumferential direction is arranged between the well body section and the well shaft section at intervals. The nodular cast iron prefabricated assemblytype drainage inspection well has the advantages that the elevation of the water inlet pipe can be adjusted, and the stability of an assembly structure is good.

Description

technical field [0001] The invention belongs to the technical field of drainage inspection wells, in particular to a nodular cast iron prefabricated drainage inspection well. Background technique [0002] As an important part of urban infrastructure construction, drainage system affects the urban environment and management level. Drainage inspection wells are generally located at the junctions of drainage pipes, at turning points, at pipe diameter or slope changes, and at regular intervals on straight pipe sections. They are drainage auxiliary structures that are convenient for regular inspection and cleaning. At present, drainage inspection wells mainly adopt several processes such as block masonry, on-site concrete pouring and concrete prefabrication. Concrete block masonry inspection wells have a long construction period and are prone to leakage; concrete cast-in-place inspection wells are complex to construct and have a long maintenance period; concrete prefabricated as...

AI Technical Summary

Problems solved by technology

However, for mountainous cities, it has the characteristics of large terrain undulations and deep burial of inspection wells, and the burial depth of drainage pipes and water inlet pipes is not fixed, and the construction conditions of each inspection well are not exactly the same, which leads to the ductile iron The scope of application of prefabricated drainage inspection wells is greatly limited, and it is not suitable for the construction environment of mountainous cities

In addition, the nodular cast iron prefabricated drainage inspection well is only connected by tongue and groove, which has the problem of unstable assembly structure

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