| 摘要 |
PURPOSE:To prompt purification of filthy water in a tank by fixing a tubular body to an external peripheral frame of a filtration spherical body and fitting a plug body for stopping an opening freely detachably and fitting two reinforcing rings each being parallel to a dividing face of the spherical body in a direction vertically crossing said tubular body and facing each other to the external peripheral frame. CONSTITUTION:A tubular body arranged in the diametral direction of a filtration spherical body uniting to one body at the bonding part 3'', 3'' at the middle part of the tubular body and having an opening 3', 3' on the periphery of the spherical body is fixed to the external peripheral frame 1 of the filtration spherical body, and a plug 8 for stopping the opening 3', 3' is attached to the opening freely detachably. Therefore, when the openings at both sides of the tubular body at the middle part of the spherical body are stopped, a hollow tubular body is formed which allows the spherical body submerged in the water to float up and allows the spherical body to be suspended in the upper or middle part of a purification tank. Since two reinforcing rings 4 arranged in parallel to a dividing face 2, 2' of the spherical body and facing each other are attached to the external peripheral frame 1, 1, the strength of the spherical body is increased, and the function of the spherical body 1 is fully exhibited without causing damage even if it is laid on the bottom of a purifying tank or even if it collides with the wall of the purifying tank. |
