Contact mechanism for double-breakpoint circuit breaker

The invention relates to a contact mechanism for a double-breakpoint circuit breaker. The contact mechanism comprises a revolution shaft, a movable contact which can be arranged in the revolution shaft in a rotatable way, two baffle rods, two compression bar pieces, and at least two springs, wherein the movable contact comprises two end arms which are rotational symmetric with each other; the two baffle rods are fixedly arranged on the two end arms of the movable contact respectively; the two compression bar pieces are arranged on the two end arms respectively and two ends of each compression bar piece extend to upper and lower sides of each end arm; a first end of each compression bar piece is provided with a shaft, two ends of each shaft are connected to the revolution shaft and the whole compression bar piece can rotate around the shaft, and the middle part of each compression bar piece is pressed against each baffle rod; and one end of each spring is hooked at the first end of one compression bar piece, and the other end of each spring is hooked at a second end of the other compression bar piece. The contact mechanism for the double-breakpoint circuit breaker can improve the positioning stability of the movable contact, has obvious separating and clamping effects and can guarantee a good current limit effect.