| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pipe coupling to perform connection in a single operation, provide a connection state freed from jolting, and protect connection from easy disconnection. SOLUTION: A lock ball 6 contained in the through-hole part 5 of a fluid flow socket body 3 is engaged with the lock ball engaging groove 23 of a fluid flow plug body 21, and by pressing the rock ball 6 by the press surface 11 of a sleeve 9, a fluid flow socket 1A and a fluid flow plug 2A are interconnected. The press surface 11 of the sleeve 9 is formed in a taper surface where diameter is gradually increased toward an advancing direction. A taper surface 13 where diameter gradually decreased in the direction of a portion situated deep is formed on the inner peripheral surface of the fluid flow socket body 3 and a taper surface 27 engaged with the taper surface 13 during connection and having diameter gradually decreased in the direction of a tip is formed on the outer periphery of the fluid flow plug body 21. A connection spot wherein the fluid flow socket 1A and a fluid flow plug are interconnected is covered with a cover 24. The cover 24 is arranged in the fluid flow plug body 21 in a slip-off preventing state and threadedly engaged with a male screw 12 on the outer periphery of the sleeve 9 and connection therebetween is protected from disconnection.</p> |
