Manhole cover with adjustable height

Abstract

The invention provides a manhole cover with adjustable height. The manhole cover comprises a base and a manhole cover body, wherein a manhole cover height adjusting device and an adjusting ring are arranged between the base and the manhole cover body, the center of the base is provided with a through hole connected with a pit pipeline, a plurality of adjusting bolt holes are formed along the innerwall of the through hole, one end of the height adjusting device is assembled with the adjusting bolt holes, the other end of the height adjusting device is used for containing the adjusting ring, the adjusting ring can be driven to rise and fall in the through hole of the base through the adjustment of the height adjusting device, and the manhole cover is buckled on the adjusting ring. The manhole cover with the adjustable height has the advantages that according to the height difference between the road surface and the adjusting ring, the height adjusting device is adjusted, and the levelness of the adjusting ring is also adjusted when the height is adjusted, thereby achieving the effect that the road surface and the manhole cover are flush.

Description

technical field [0001] The invention relates to a well cover, in particular to a height-adjustable well cover. Background technique [0002] Manhole covers are used to cover roads or deep wells in homes to prevent people or objects from falling. According to the material, it can be divided into metal manhole covers, high-strength fiber cement concrete manhole covers, resin manhole covers, etc. Usually round. It can be used in green belts, sidewalks, motorways, docks, alleys, etc. [0003] During the construction of asphalt road, at least 4 layers should be laid, which are backfill compaction, roadbed compaction, concrete bottom layer, and asphalt pavement layer. Usually, the manhole cover should be placed in advance before laying backfill compaction, roadbed compaction and concrete bottom layer During the laying process, the manhole cover is positioned and fixed, and the height of the traditional manhole cover is fixed. However, when laying the road surface, the height of...

AI Technical Summary

Problems solved by technology

[0003] During the construction of asphalt road, at least 4 layers should be laid, which are backfill compaction, roadbed compaction, concrete bottom layer, and asphalt pavement layer. Usually, the manhole cover should be placed in advance before laying backfill compaction, roadbed compaction and concrete bottom layer During the laying process, the manhole cover is positioned and fixed, and the height of the traditional manhole cover is fixed. However, when laying the road surface, the height of the laying layer often has a large error. Either the manhole cover is higher than the road surface, or the manhole cover is lower than the road surface. The road surface is even, and there is a height difference between the road surface and the manhole cover. Vehicles pass by on the road all the year round. On the one hand, it will cause damage to the vehicle, and on the other hand, it will affect the life of the manhole cover. At the same time, it is easy to generate noise due to bumps

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