Self-leveling manhole cover device and installation method of device

Abstract

The invention discloses a self-leveling manhole cover device and an installation method of the device, and belongs to the technical field of municipal construction. The device comprises a fixed pedestal, a movable pedestal, a cover plate and sliding preventers. The movable pedestal can slide up and down inside the fixed pedestal, so as to adjust the height of a manhole cover and enable the top of the manhole cover to be flush with a pavement; the cover plate covers the top of the movable pedestal; and the sliding preventers are used for preventing the movable pedestal from automatically sliding under the action of gravity and allows the movable pedestal to slide under additional external force. The movable pedestal is lifted to the highest position at first, an asphalt pavement layer is paved, a road roller rolls the pavement and the manhole cover together, the movable pedestal synchronously slides down along with compaction of the pavement, to keep the manhole cover be flush with the pavement, the road roller does not need to avoid the manhole cover as the movable pedestal can extend and be retracted, the pavement around the manhole cover can be effectively compacted, finally, the movable pedestal is fixed on the fixed pedestal through limiting bolts in the end, and the positions of nuts are adjusted to make the movable pedestal slide up and down, to keep the manhole cover be always flush with the pavement.

Description

technical field [0001] The invention belongs to the technical field of municipal construction, and relates to a self-leveling inspection well cover device and an installation method, in particular to a self-leveling inspection well cover device and an installation method, which are suitable for asphalt pavement, and can automatically adjust the height when the pavement is paved and rolled, and keep the top surface level with the road surface. Qi manhole cover and installation method. Background technique [0002] Various pipelines are buried under municipal roads and squares. In order to facilitate maintenance, inspection shafts leading to the ground are provided. Inspection shaft covers are provided on the top of the inspection shafts to keep the ground smooth and unimpeded. The inspection well cover is generally made up of base and inspection well cover plate, and base is fixed on the inspection well wall, and inspection well cover plate is placed in the base, and uncovers...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problems that the existing manhole cover is not flush with the road surface (lower or higher than the road surface), which easily causes bumpy driving. In addition, the asphalt road surface around the manhole cover cannot be rolled by a road roller, resulting in low density of the road surface and easy damage. A self-leveling inspection well cover device and its installation method are proposed. The height of the inspection well cover can be automatically adjusted according to the compaction of the road surface, which can keep the top of the inspection well cover even with the asphalt road surface, and can provide a strong guarantee for the traffic safety of pedestrians and vehicles.

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