MOLD OF WATERWAY PIPE AND THE WATERWAY PIPE THEREOF

A mold for manufacturing a waterway pipe is provided to permit aquatic animals introduced into a waterway pipe to escape therefrom easily, and to allow animals living on or under the ground to utilize the water flowing through the waterway pipe. A mold for manufacturing a waterway pipe comprises: a bottom plate(110) having a horizontal plate-like shape, and including jaws(111) protruding along the both lateral edges and a surface(113) protruding horizontally in the lateral direction of the jaw; a pair of inner plates(140,140') inserted movably into the jaw and including a passing bar disposed at the outward lateral surface; a top plate(150) covering the inner plates and having a jaw corresponding to the jaw of the bottom plate and formed along both lateral edges of the bottom surface; a corrugated pipe(130) having a hole(123) through which the passing bar passes, fixed to the inner plates and including a plurality of protrusions on the inner surface thereof; a pair of outer plates(120) disposed in parallel with the inner plates while being spaced apart therefrom by the distance corresponding to the protruding surface, forming a space in which the inner plates are in contact with the protruding surface by a bent surface(121) surrounding the circumference of the bottom plate, and having a hole(131) engaged with the end of the passing bar; and a driving unit including a cylinder communicating with a pump for controlling air pressure or fluid pressure and a piston connected to the cylinder at one end and to the inner surfaces of the inner plates at the other end, wherein the piston moves horizontally along the cylinder by the operation of the pump so as to move the inner plates.