摘要 |
PROBLEM TO BE SOLVED: To prevent occurrence of inconveniences caused by a deposit on a lock part in a male connector which has a lock part and is connected to a downstream side of a female connector.SOLUTION: A male connector 1 includes a male side connection tube 6 and a lock part 7. The male side connection tube 6 includes a conical outer face 9 which is fit to a conical inner face 8 of a female connector 4 to establish the connection to the female connector 4. The lock part 7 has a cylindrical inner wall 11 with an opened front end side. A female screw 13 which is screwed with a male screw 12 of the female connector 4 for locking the connection to the female connector 4 is provided on the cylindrical inner wall 11. A through-hole 14 and a slit groove 22 for discharging a deposit on the inner wall 11 are provided on the lock part 7. |