| 摘要 |
An air-inlet switching assembly for a pneumatic tool having a gun shaped shell and a cylinder, the air-inlet switching assembly is mounted in the shell below the cylinder and has a selector valve and a switching stem. The selector valve is rotatably mounted in an inlet tube of the shell below the cylinder, selectively communicates one of the passageways of the cylinder and has a clamping protrusion and a valve seat. The clamping protrusion is formed eccentrically on and protrudes from the external surface of the selector valve. The valve seat is formed on and protrudes upward from a top of the selector valve and has a valve hole selectively communicating with one of the passageways of the cylinder. The switching stem is movably mounted in the shell, is connected securely to the selector valve and has a clamping arm connected securely to the clamping protrusion of the selector valve.
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