| 摘要 |
PROBLEM TO BE SOLVED: To provide a connecting device capable of easily connecting and disconnecting suction and exhaust pipes piped indoor to and from each other. SOLUTION: Detachment is prevented by providing a stopper 5 having a free end part free to erect and fall on an inner cylinder part to be fitted and inserted in an outer cylinder part 2 and engaging a head end of the free end part of this stopper 5 with a ring groove 4b of the outer cylinder part 2. In case of disconnecting both of the cylinder parts 2, 3 from each other, the stopper 5 is made to reach the same diametrical part through an inclined part of the ring groove 4b by rotating the inner cylinder part 3, and the inner cylinder part 3 is extracted from the outer cylinder part 2 in this state. In this constitution, it is possible to carry out connection and disconnection without using a special tool for connection and disconnection. |
