The stroke conversion mechanism is a device that converts the straight stroke displacement into a 90° angular stroke displacement output. It is used to connect the angle valve positioner and the valve position transmitter, which greatly improves the feedback accuracy. Long trip feedback mechanism with independent intellectual property rights (Patent No. ZL 2012 1 0193045.6).

To When the actuator pushes the linear plate downward, the feedback rod rotates clockwise around a fixed point under the pressure of the linear plate slope; when the actuator drives the linear plate upward, the feedback rod always meshes with the linear plate slope under the action of the torsion spring, and reverses Rotate the hour hand until the feedback lever is reset and its rotation angle can reach 90°.