| 摘要 |
PROBLEM TO BE SOLVED: To facilitate disassembly of a plug body and a valve member and to prevent a valve member cover from being released from the valve member under unintentional case.SOLUTION: A valve member 21 is provided with a resilient member 22 for biasing it in a valve closing direction, a valve member cover 37 is attached for preventing this resilient member 22 from being released, the valve member cover 37 is provided with a rotatable block 38, the rotatable block 38 is provided with engaging claws 73, 73 at two locations where the valve member cover 37 is engaged with the valve member 21, the upper end of the valve member 21 is provided with the same number of or integral multiplication claw guiding grooves 74 as that of the engaging claws 73, 73 and a step groove 75 for rotating the rotatable block 38, and the valve member cover 37 can be engaged or disengaged through an upward or downward motion of the valve member cover 37, so that when the valve member cover 37 is held with a hand and moved up and down to cause the rotatable block 38 to be turned by the step groove 75 and the engaging claw 73 to enable the valve member cover 37 to be engaged with or disengaged from the valve member 21, resulting in that the plug body 11 and the valve member 21 can be easily disassembled. |
