METHOD FOR AUTOMATICALLY OPERATING DREDGING BUCKET APPARATUS FOR GREAT DEPTH MANHOLE

摘要

PROBLEM TO BE SOLVED: To provide an apparatus for dredging accumulated sediment in a great depth manhole, which can exert a great dredging capacity even when the sewage manhole are greatly deepened, and which can easily expand a dredging range; and to automatize the operation of the dredging apparatus. SOLUTION: This dredging apparatus is constituted as follows: an insertion post for being inserted into the manhole is constituted in a multi-telescopic manner; a hydraulic power output section for supplying pressure oil to a hydraulic actuator is watertightly mounted on an inside column which reaches a lowermost portion of the insertion post; and a link arm section, which is driven by a hydraulic cylinder and which springs up to a horizontal position from a vertical one, and/or a hydraulic bucket for dredging are/is arranged in the lower portion of the inside column. The motion of operating equipment is detected; and the dredging apparatus performs dredging by being automatically guided to a dredging position set by a designation instruction, on the basis of information on specifications of the manhole. COPYRIGHT: (C)2011,JPO&INPIT