Cleaning device for overhanging surfaces such as ceilings and arches.

摘要

Arch cleaning tool (7). The tool (10) is formed from a tank (11) which is open over the arch (7) and in contact with it by sealing edges (15). The tank (11) is deformable (20, 22, 23) and bearing in an elastic manner (62) on a mobile arm (2). The curvature of the tank (11) is adjusted (53) according to that of the arch (7). The dirty water is collected (pipe 45). Application to the cleaning of an underground railway system in particular, and of any type of tunnel. <IMAGE>