Interlocking device of electrical circuit breaker

The utility model discloses an interlocking device of an electrical circuit breaker, and relates to the technical field of electrical circuit breakers. The circuit breaker comprises a circuit breaker body, two side surfaces of the circuit breaker body are provided with sliding grooves, sliding rods are fixedly connected in the sliding grooves, the surfaces of the sliding rods penetrate through and are slidably connected with sliding blocks, the surfaces of the sliding rods are sleeved with extension springs, one ends of the extension springs are fixedly connected with one ends of the sliding blocks, and the other ends of the extension springs are fixedly connected with one ends of the sliding grooves. According to the utility model, when the first connecting plate and the second connecting plate move in place, the first spring pops the wedge-shaped blocks out of the first limiting groove, one ends of the two wedge-shaped blocks are contacted, the second spring pushes the sliding plates out of the second limit