High and low voltage guide valve

The invention discloses a high and low voltage guide valve which comprises a valve body with an inlet and an outlet; the valve body is provided with a valve cavity, a valve core is arranged in the valve cavity and the two ends thereof extend out of the valve cavity, and one end thereof is a pressure detection end and the other end thereof is provided with an elastic resetting element. The guide valve is characterized in that the valve cavity is internally provided with a first cavity and a second cavity adjacent to the first cavity, a sealing surface is arranged at the junction of the first cavity and the second cavity, the first cavity and the second cavity are respectively communicated with the inlet and the outlet, and one section of the valve core is a cone valve, the conical surface of which is matched and sealed with the sealing surface. The high and low voltage guide valve has high sensing sensitivity, good responsiveness, rapid action, high accuracy of repetition, high resetting precision, good reliab