| 摘要 |
PURPOSE: An apparatus for removing residual materials generated in boring ground is provided to efficiently discharge the residual to a position to be desired by applying vacuum pressure generated by flow of piston. CONSTITUTION: The apparatus comprises a circular body(100) having a support portion(101); an opening/closing component(110) having an inlet(115) at lower portion of the body(100) and hinged to outer surface of the body(100); a pressure generating component(120) having a piston to create vacuum pressure in a space(104) of the component(110); a cover(130) hinged to upper side of the component(110) and to be opened by a vacuum force of the space(104) and to be automatically closed by gravity; and a control component(140) coupled to the outer surface of the body(100) to lock/release the opening/closing component(110).
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