Patent ID: 8622087

Claim:
A control valve, comprising: a valve body defining a valve hole therethrough and further defining an inlet hole and an outlet hole, the inlet hole and the outlet hole communicating with the valve hole; a valve plug movably assembled within the valve body, two ends of the valve plug respectively being exposed to the outside of the valve body; two clamping boards, wherein the two clamping boards are respectively fixed to two ends of the valve body and sleeved on two ends of the valve plug, each of the two clamping boards defines a sleeve hole therethrough corresponding to the valve plug, each of the two clamping boards comprises a guiding post protruding from a surface away from the valve body and positioned adjacent to the sleeve hole; two adjusting elements, wherein two adjusting elements are two face cams, each of the two adjusting elements comprises a main body, and a cam portion formed on a periphery of one end surface of the main body, the main body is mounted to one distal end of the valve plug, the cam portion resists against the corresponding one distal end of the valve plug, the main body defines a fixing hole through a substantially central portion of the main body axially, and an arc guiding hole through the main body axially corresponding to the guiding post of each of the two clamping boards, the arc guiding hole surrounds at the outside of the fixing hole, the two guiding posts of the two clamping boards are respectively movably engaged into the corresponding two arc guiding holes of the two adjusting elements; and two operating members respectively fixed to the two main bodies of the two adjusting elements through the fixing holes, for rotatably driving the two adjusting elements, thereby moving the valve plug within the valve hole of the valve body, and controlling the control valve to operate by switching between an open state and a closed state.