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Elastic Manhole Roadblock / Roadblock

Elastic Manhole Roadblock
Elastic Manhole Roadblock

Elastic Manhole Roadblock is formed of the conical spring steel sheet overlaid with plastics, fixed to the wellhead inside, and it will automatically rise when the manhole cover goes, in order to reach the purpose of warning passers-by and preventing falling things.Once the manhole cover leaves the wellhead, the conical roadblock will automatically rise as a warning sign by the elasticity of the spring sheet, to keep passers-by away from dangers and prevent huge things falling down to cause blockage in well.The conical roadblock has a similar form with the current traffic corns, with a high degree of recognition.

University

Southwest Petroleum University

Southwest Petroleum University
XinDu District,ChengDu,SiChuan, China

Hai Geng,
Southwest Petroleum University

Xu Liu,
Southwest Petroleum University

Minjie Lv,
Southwest Petroleum University

Yujing Qin,
Southwest Petroleum University