FLUID INJECTION MECHANISM

摘要

PROBLEM TO BE SOLVED: To provide a fluid injection mechanism capable of cutting off a main body flow channel to specially supply a fluid such as a standard gas or the like and capable of forming the main body flow channel after supply. SOLUTION: One of the connection part always connected to a main body flow channel and a first connection port 2 or a second connection port 3 is constituted so as to be selected by a valve body 5. The valve body 5 is constituted so as to cut off the second connection port 3 in a state that a connector 10 is not mounted and energized by an energizing means 7 so as to allow the first connection port 2 to communicate. This valve body 5 allows a connection part 4 to communicate with the second connection port 3 when the connector 10 is mounted and is moved to a position cutting off the communication with the first connection port 2 against the energizing means 7. A supply port 13 for injecting a second fluid is provided in the connector 10. COPYRIGHT: (C)2005,JPO&NCIPI