A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Disclosed is a manhole cover loss preventing device. The manhole cover loss preventing device comprises a manhole cover, stopping pieces and a control device. The ground on the circumference of the manhole cover is provided with slots, and the movable stopping pieces are arranged inside the slots and connected with the control device. The manhole cover loss preventing device can avoid loss of the manhole cover and has the advantages of being skillful in design and applicable to practical usage.
Disclosed is a manhole cover loss preventing device. The manhole cover loss preventing device comprises a manhole cover, stopping pieces and a control device. The ground on the circumference of the manhole cover is provided with slots, and the movable stopping pieces are arranged inside the slots and connected with the control device. The manhole cover loss preventing device can avoid loss of the manhole cover and has the advantages of being skillful in design and applicable to practical usage.
Manhole cover loss preventing device
LIU QINGJIE (author)
2015-05-27
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
,
Gründungen
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