Vacuum circuit breaker structure of 12kV indoor integrated solid-sealed insulating polar pole

Provided is a vacuum circuit breaker structure of a 12kV indoor integrated solid-sealed insulating polar pole. A porcelain insulating pull bar is disposed inside a solid-sealed insulating polar pole. One end of the porcelain insulating pull bar is connected with the solid-sealed insulating polar pole, and the other end of the porcelain insulating pull bar is connected with a driving plate. The other end of the driving plate is connected with an operation main shaft. A spring-operated mechanism is connected with the operation main shaft. An insulating sheath is connected to the side surface of the solid-sealed insulating polar pole. According to the structure of the utility model, a 12kV indoor integrated vacuum circuit breaker can be less dependent on an indoor using environment, the demand of insulation in a high altitude region under a condition with the same size is successively realized, extraneous condition demands of ineffective insulation effects ahead of time and poor consistency of mechanical paramet