Isolation switch

The utility model relates to an isolating switch, which comprises a base, a first insulator, a first contact plate assembly, a second insulator, a fixing plate, a second contact plate and two isolating blades, and is characterized in that the first contact plate assembly comprises a locking baffle plate arranged on the first insulator and a first contact plate arranged on the locking baffle plate and matched with the two isolating blades; the two isolation blades are provided with a locking assembly matched with the locking baffle, the locking assembly comprises a pull ring rotationally arranged between the two isolation blades and a locking piece in linkage with the pull ring, one end of the locking piece is provided with a lock hook matched with the locking baffle, and the other end of the locking piece is provided with a locking hook matched with the locking baffle. The lock hook acts along with the locking piece and can be buckled on the locking baffle, and clamping fit of the lock hook and the locking ba