Optimization structure for synthetic membrane type potentiometer

The utility model provides an optimization structure for a synthetic membrane type potentiometer. The optimization structure for the synthetic membrane type potentiometer is provided with a base, wherein a stepped hole is fabricated in the base; a resistor body component is fixed on the stepped end surface of the stepped hole; a rotating shaft is supported on the base through a bearing; the upper end of the rotating shaft penetrates through a centre hole in the resistor body component and extends out of the base; a liner bushing is arranged on the rotating shaft; the liner bushing is mounted and fixed on the rotating shaft in a sleeving manner; an electric brush device is fixed on the lower end surface of the liner bushing and placed inside the stepped hole; electric brushes in the electric brush device are in sliding contact with resistive films in the resistor body component; the electric brushes are driven to slide on the resistive films through the rotating shaft; a conducting wire is arranged on the resistor body component; the conducting wire is connected with a wiring terminal arranged on the right side wall of the base. According to the optimization structure for the synthetic membrane type potentiometer provided by the utility model, quantity of parts in the optimization structure is decreased; the structure is simple; the use is convenient; the assembly period is short; the manufacturing cost is greatly reduced.