| 摘要 |
PROBLEM TO BE SOLVED: To provide an automatic washing apparatus for the interior of a tank capable of sufficiently washing all parts of the inner wall surface of the tank easily without restricting the movement of a nozzle head by the internal structure of the tank. SOLUTION: The automatic washing apparatus for the interior of the tank is equipped with a high pressure water generation means, the hose having a rotary nozzle head turning on its axis while revolving around a main body to eject high pressure water to the leading end guided into the tank and supplying high pressure water to the nozzle head from the high pressure water generation means, the rotary arm attached to the upper part of the impeller shaft arranged on the center axis in the tank in a state rotatable around a shaft axis in a rotatable manner to extend in the radial direction of the tank, a hose guide for guiding the hose arranged along the radial direction of the tank of the arm so as to be movable to both ways into the tank, a reel means for feeding the hose into the tank and drawing out the same from the tank and a control means for controlling the rotary operation of the rotary arm around the shaft axis, the going and returning moving operation of the hose guide and the feed-in and drawing-out operation of the hose by the reel means.
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