Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to the technical field of road surface foundation facilities, in particular to a manhole cover convenient to open. The manhole cover comprises a manhole cover body, and two symmetric lifting rings are arranged on the manhole cover body; and a cover is arranged on the lifting rings. The manhole cover is convenient to maintain and open.
The invention relates to the technical field of road surface foundation facilities, in particular to a manhole cover convenient to open. The manhole cover comprises a manhole cover body, and two symmetric lifting rings are arranged on the manhole cover body; and a cover is arranged on the lifting rings. The manhole cover is convenient to maintain and open.
Manhole cover convenient to open
MA JINFENG (Autor:in)
06.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Reinforced concrete manhole cover plate convenient to maintain
| Europäisches Patentamt | 2020