Galvanic circle structure of low-voltage circuit breaker

The utility model discloses a galvanic circle structure of a low-voltage circuit breaker, wherein a fixed contact is connected with a fixed contact clamping piece which consists of three successive parts, the left part is in a square structure connected with a busbar and provided with a hole, the right part is in a double-piece clamping structure propping up relative to the middle part, and the fixed contact is rotatably arranged between the double-piece clamping structure; the middle part of the fixed contact clamping piece is lower than the left part and the right part; a moving contact is connected with a moving contact clamping piece which consists of a left part and a right part, wherein the left part is in a round-head double-piece clamping structure, the moving contact is rotatably arranged between the round-head double-piece clamping structure, the square structure of the right part is connected with a thermoelement, and the thermoelement and the line outgoing end of a tripping system are in an integr