Novel high-voltage SF6 self-energy blowing-assisted circuit breaker arc extinguish chamber

The invention provides a novel high-voltage SF6 self-energy blowing-assisted circuit breaker arc extinguish chamber, which relates to the technical field of power transmission and transformation equipment. According to the novel high-voltage SF6 self-energy blowing-assisted circuit breaker arc extinguish chamber, on the basis of an existing arc extinguish chamber structure, a large nozzle, a small nozzle, a static arc contact and a one-way valve are modified into the large nozzle with a throat protrusion, an improved small nozzle structure, the static arc contact with a hollow structure and the one-way valve with a spring positioning ball; a plurality of corrugated bulges are arranged at the throat part of the large nozzle, so that a gap between the large nozzle and the static arc contact is reduced; according to the one-way valve with the spring positioning bead position, a plurality of spring positioning beads are arranged in an expansion chamber and an air cylinder channel, the length of the one-way valve