Three-station isolating grounding switch with double guiding rod and connection rod transmission structure

The invention discloses a three-station isolating grounding switch with a double guiding rod and connection rod transmission structure. The three-station isolating grounding switch comprises a contact base. The big head end of a transmission crank arm is fixed on a switch insulating main shaft; one end of a grounding conducting rod cooperates with a grounding middle contact and a grounding static contact, and the other end of the grounding conducting rod is hinged to the small head end of the transmission crank arm through a grounding connection rod; and one end of an isolating conducting rod cooperates with an isolating middle contact and an isolating static contact, and the other end of the isolating conducting rod is hinged to the small head end of the transmission crank arm. The three-station isolating grounding switch with the double guiding rod and connection rod transmission structure has the advantages of direct and simple transmission and small space required by switch installation; the isolating grounding movable and static contacts are in direct butt joint and insertion, the resistance is small, and the alignment is easy so that the touch reliability of the insertion of the movable contact is ensured; and the three-station isolating grounding switch with the double guiding rod and connection rod transmission structure integrates the advantages of the linear transmission and the swinging direct transmission of the traditional grounding switch and completely solves the defects of the traditional grounding switch.