FIELD: construction.
SUBSTANCE: road inspection manhole comprises a frame determining a central axis (X-X) of a frame and equipped with a hinged link of a frame, and also an element of a frame overhead cover equipped with a hinged link of a cover element. Hinged links are arranged with the possibility to ensure folding back of the cover element in respect to the frame in a disconnection position, at the same time hinged links of the frame and the cover element are arranged as capable of disconnection, when the cover element is in the disconnection position. The inspection manhole comprises a facility to block disconnection of hinged links, which includes the main part and a foot. The foot is directed radially outside relative to the central axis (X-X) of the frame.
EFFECT: improved design.
21 cl, 5 dwg
Authors
Dates
2012-09-10—Published
2008-10-28—Filed