High-voltage switch and mechanical operating mechanism thereof

The invention relates to the field of high-voltage switches, and particularly relates to a high-voltage switch and a mechanical operating mechanism thereof. The high-voltage switch comprises a switch body and a mechanical operating mechanism. The mechanical operating mechanism comprises a power output shaft which is provided with at least one pair of reverse scroll springs, and the pair of reverse scroll springs is composed of an opening spring and a closing spring. When the contact of the switch body is in the middle section of the stroke, both the opening spring and the closing spring are in a free state; when the contact of the switch body is an opening position, the opening spring is in a scrolled state, and the closing spring is in a loose state; and when the contact of the switch body is a closing position, the opening spring is in a loose state, and the closing spring is in a scrolled state. In the opening and closing process of the switch body, the scroll springs can provide assistance for movement of the switch body in the initial stage of movement, and can play a decelerating and buffering role in the later stage of movement. Therefore, the problem that an existing high-voltage switch has high noise and large vibration at the end of movement is effectively solved.