Isolating knife switch

The invention discloses an isolating knife switch, which comprises a rotating shaft, a mounting piece and two insulators fixed on the surface of the mounting piece, and is characterized in that one end, far away from the mounting piece, of each of the two insulators is provided with a contact, one contact is connected with a knife switch through the rotating shaft, and the rotating shaft is provided with a fastening cutting mechanism connected with the knife switch; when the knife switch is closed, the knife edge of the knife switch directly clamps the contact, the knife switch extrudes the pressing block to separate from the clamping block in a sliding square hole, the pressing block directly clamps the knife switch after being pressed, and a lower tension spring resets to pull the pressing block to move together, so that the knife edge of the knife switch is in firmer contact with the contact. 本发明公开了一种隔离刀闸，包括转轴、安装件以及两个固定在安装件表面的绝缘子，两个所述绝缘子在远离安装件的一端均安装有一个触头，其中一个所述触头通过所述转轴连接有刀闸，在所述转轴上安装有与刀闸连接的紧固切合机构；当刀闸合拢时，刀闸的