Novel small-caliber electric butterfly valve switch indicating device

The utility model discloses a novel small-caliber electric butterfly valve switch indicating device which comprises a sleeve fixedly arranged in a limiting jackscrew of an electric butterfly valve in the axial direction and a spring probe arranged in the sleeve, the inner end of a probe rod of the spring probe extends out of the inner end of the limiting jackscrew, the probe rod of the spring probe is in clearance fit with the sleeve, and the limiting jackscrew is arranged in the sleeve. The outer end of the sleeve is provided with a lock nut used for pressing the probe body of the spring probe in the sleeve, and the lock nut is in clearance fit with the tail of the probe rod of the spring probe. The electric butterfly valve is of a pure mechanical structure, so that the reliability is high, and the working state of the electric butterfly valve can be intuitively observed through the electric butterfly valve when the actual switch position of the electric butterfly valve cannot be judged when an electrical el