Two-gap vacuum arc-extinguishing chamber based on asynchronous linkage and circuit breaker

The invention belongs to the technical field of vacuum arc extinguish chambers, and particularly relates to a two-gap vacuum arc extinguish chamber based on asynchronous linkage and a circuit breaker. In order to solve the problem that in the prior art, a high-voltage-class vacuum arc extinguish chamber is limited by the nonlinear saturation characteristic of vacuum gap insulation, and insulation improvement is difficult, a guide moving mechanism and a middle contact mechanism are additionally arranged in a single-fracture vacuum arc extinguish chamber, and an original single-gap vacuum arc extinguish chamber is divided into double-gap vacuum arc extinguish chambers; the two gaps are matched in sequence through the middle contact mechanism to share voltage, so that the insulation level of a single arc extinguish chamber is improved, the influence of the saturation effect between the breakdown voltage of a single fracture and the length of the vacuum gap is reduced, the size of the vacuum arc extinguish chambe