A kind of reserved installation mechanism for manhole wellhead in asphalt pavement construction
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- LUSHAN COLLEGE OF GUANGXI UNIV OF SCI & TECH
- Publication Date
- 2022-08-09
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Abstract
Description
technical field
[0001] The invention relates to the technical field of manhole installation, in particular to a reserved installation mechanism for manhole wellheads in asphalt pavement construction. Background technique
[0002] A manhole is an underground space where urban underground pipelines are transferred and controlled. Its ground entrance and exit are called manhole mouths or manholes. Manholes are usually covered by manhole covers. In cities, all public water supply, sewage canals, telephone lines, and optical fiber networks may pass through. The underground passage connection under the manhole.
[0003] In the prior art, when installing a manhole cover, a mounting ring is first pre-installed on the ground, and then a manhole cover with a diameter slightly smaller than the mounting ring is installed on the mounting ring. Although the installation operation is simple, the manhole cover is very difficult to install. It is easy to be removed, which can easily lead to...