SF6 vacuumizing and filling device for circuit breaker air chamber maintenance

The utility model discloses an SF6 vacuum-pumping and filling device for circuit breaker air chamber maintenance, which relates to the technical field of circuit breaker maintenance and comprises an SF6 vacuum-pumping module, an SF6 compression module, an SF6 inflation module, a centralized controller and an operation panel. The SF6 vacuumizing module, the SF6 compression module and the SF6 inflation module are connected with the centralized controller, and the operation panel is provided with a first gas path interface, a second gas path interface, a third gas path interface and a fourth gas path interface; the SF6 vacuumizing module comprises a first gas path pipeline, a first control valve and a vacuum pump; a first control valve is arranged on the first gas path pipeline, and the first gas path pipeline is connected with a vacuum pump; the SF6 compression module comprises a second gas path pipeline, a first manual valve, a third gas path pipeline, a booster pump, an air compressor and a fourth gas path pi