Pneumatic regulating valve regulator

The invention discloses a pneumatic regulating valve regulator. The pneumatic regulating valve regulator comprises a housing, a pressure regulating knob, a pressure regulating spring, a pressure regulating diaphragm, a pressure regulating column and a reset spring, wherein a pressure equalizing chamber and a middle cavity are formed in the upper portion and the lower portion of the housing correspondingly; an air inlet cavity and an air outlet cavity are formed in the two sides of the housing correspondingly; the middle cavity communicates with the air inlet cavity and the air outlet cavity through an air inlet hole and an air outlet hole correspondingly; the pressure equalizing chamber communicates with the air outlet cavity and a pressure relief pipe through a pressure equalizing hole and a pressure relief hole correspondingly; the pressure regulating column penetrates a through hole between the pressure equalizing chamber and the middle cavity; the lower end of the pressure regulating column is expanded in