| 摘要 |
PROBLEM TO BE SOLVED: To provide a connecting mechanism of a valve and a joint in which trouble does not occur in air tightness and loosening even if resin is used in a connection part of the valve and the joint in air piping.SOLUTION: In a connecting mechanism for connecting a tube to a housing 2 of a valve via a joint 1, at least either of the housing 2 of the valve and the joint 1 is formed of resin, a connection hole 22 which allows the insertion and connection of the joint 1 and a pin insertion hole 25 which is protrusively formed in a direction orthogonal to an axial direction of the connection hole 22 from an external face of the housing 2, and penetrates the connection hole 22 are formed at the housing 2 of the valve, an annular groove 3 is formed at an external peripheral face of the joint 1 in a peripheral direction, a pin 5 is inserted into the pin insertion hole 25 of an external face of the housing 2 in a state of being inserted into the housing 2 of the joint 1, and the pin 5 is locked to the joint 1 while penetrating the inside of the annular groove 3 which is formed at the joint 1.SELECTED DRAWING: Figure 1 |
