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Safety manhole cover / Manhole cover

Safety manhole cover
Safety manhole cover

When raining hearily outside,the wellied is always opened for draining away water more quickcy ,and the manhloe exposes directly when opening the well lid .However,the pedestrian and the ve-hicles that pass by the opend lid may get into danger .The redesigned safety manhold cover is o-pened in a rotary way when we need to drain away water .The improverment can remind people of danger and aviod the pedestrian falding into the manhole,which promises people ‘s safety.


Guangdong Ocean University

Guangdong Ocean University
Zhanjiang, China

Yihao Zhang,
Guangdong Ocean University

Dafu Li,
Guangdong Ocean University

Donglian Feng,
Guangdong Ocean University

Yichun Zheng,
Guangdong Ocean University