Rohrkupplung mit Absperrventilen

摘要

1,020,540. Pipe couplings. WHEATON BRASS WORKS. Jan. 18, 1965 [Sept. 9,. 1964], No. 2190/65. Heading F2G. A coupling valve comprises a stationary receiving member 10 and a coupler member 24, the member 10 comprising an endwise open body 11, a stationary valve 15 and means 14 to support the valve at the receiving end of the body with the outer face 16 thereof disposed in the plane of the said end, the periphery of the valve being spaced from the wall of the body and a yieldable valve ring 18 being slidably mounted in the body to normally close against the periphery 17 of the valve. The member 24 terminates at the discharge end in an inwardly inclined valve seating surface 27, and includes a yieldable valve member 31, a coupling ring 39, and means, such as a rod 45, to prevent rotative displacement of the coupling ring relative to the body. The member 10 and the ring 39 have inter-engageable coupling elements operative to attach the member 24 to the member 10, and there is manually operative means for moving the body 24 so as to pass the discharge end portion thereof through the ring 39 and into the member 10, whereby to open the valve ring 18 after the member 24 is coupled to the member 10 and to cause the valve of the member 24, by abutment against the stationary valve 15, to yieldably move to open fluid passing relation to the interior of the member 24. As shown, the ring 39 has upper and lower coupling elements 40, 42 which co-operate with similar elements 36, 37 on the member 10; the member 24 is slid transversely relative to the member 10 for interlocking of the coupling elements. After coupling of the members, the opening of the valves is effected by swinging downwardly a lever mounted on a shaft 28 and to move the member 24 axially relative to the ring 39 and into the member 10, the valves being brought into abutment and the member 24 moving the ring 18 rearwardly from the valve 15. The valve ring 18 includes an O-ring 21 supported on a rearwardly and inwardly inclined seating flange 22 whereby upon opening movement of the ring, a presser plate 23 causes the 0-ring to radially expand into contact with the wall of the body 11. Auxiliary valves A, B may be provided whereby, before the valves 15, 31 open, the fluid pressure in the members 10, 24 is equalized.