Outdoor permanent magnet vacuum circuit breaker

The utility model discloses an outdoor permanent magnet vacuum circuit breaker, which comprises a circuit breaker box body, an insulation pole and a protection box covered outside the insulation pole, the bottom of the circuit breaker box body is provided with a damping device, the damping device comprises a support plate, a hydraulic telescopic rod is connected between the support plate and the circuit breaker body, and the hydraulic telescopic rod is connected with the insulation pole. The hydraulic telescopic rods are sleeved with first damping springs, baffles are fixedly arranged on the left side and the right side of the supporting plate correspondingly, sliding rods are fixedly arranged in the middles of the baffles, sliding blocks are slidably installed on the sliding rods, second damping springs are arranged between the sliding blocks and the baffles, and the sliding rods are sleeved with the second damping springs. By the adoption of the structure, the damping device has the advantages of being stab