| 摘要 |
Since a conventional technique had to install a spring plate above a cam plate to press a steel ball to an upper surface of the cam plate, an operating shaft had to be long, and a vertical length of a gas cock had to be increased. Also, since the steel ball had to be installed to prevent the steel ball from escaping, an assembly process is inconvenient, and the gas cock can move downstream of a line while the steel ball escapes from the gas cock to increase a defect rate of the gas cock. A cavity is installed in the cam plate. A concave unit is installed on an inner surface of the cam plate, and an elastic part is installed in an internal space of the cam plate and pressed to the inner surface of the cam plate on a path of the concave unit. The elastic part is meshed with the concave unit to create a click sensation while rotating the operating shaft. |
