| 摘要 |
PROBLEM TO BE SOLVED: To provide a self-propelled apparatus for washing an underwater structure, having excellent traveling stability and water-jetting properties for washing. SOLUTION: Nozzle pipes 7 radially extended from the center of the bottom surface of a body 1 are mutually connected by a ring 21. The ring 21 is supported by receiving parts 22 spottily formed on the bottom surface of the body 1. Wheels 2 at both side parts of the body 1 are formed into hollow shapes so as to have buoyancy. Plugs 14 are installed as pumping and drainage parts. An adequate amount of seawater is injected to the wheels by using the plugs 14 to balance the center G of gravity in the front and rear, and right and left direction of the whole body, and to regulate the center G of the gravity at the optimum position. As a result, the straightness of the travel of a fishing net-washing apparatus is kept to stabilize the traveling, and to facilitate the change of the traveling direction by remote control.
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