| 摘要 |
<p>PROBLEM TO BE SOLVED: To easily remove a pipe and a wiring without cutting the pipe and the wiring, by combining a coupling for air-tightness of the pipe and the wiring pulled out toward an outside from a communication hole which is bored at a pressure con tainer with another coupling for the air-tightness of the periphery of the coupling. SOLUTION: A pressure coupling comprises: an inner coupling 14 constituted of a bar-like member provided in the axial direction with a through hole 5 through which the pipe or a wiring 2 is made to pass, and provided, at the outer periphery of its center, at the inner periphery of one end, and the outer periphery of both ends, respectively, with a frustum shape taper seal 17, a frustum shape taper seal 24, and screw parts 18, 19; an outer coupling 15 of an approximately cylindrical shape provided, in the axial direction, with an approximately cylindrical communicating hole 20 fitted in the air-tight manner to the taper seal 17 of the inner coupling 14, for carrying out clamping, at the outer periphery of the communication hole, to be detachable with respect to an insertion hole 4 opening to the wall surface of a pressure container 1; and a inner coupling fixing structure 16 for clamping in the air-tight manner the inner coupling 14 fitted to the communicating hole 20 of the outer coupling 15.</p> |
