Comprehensive test instrument for direct-current quick circuit breaker

The utility model discloses a DC fast circuit breaker comprehensive test instrument, comprising an instrument body, a display screen and an indicating lamp, the front surface of the instrument body is provided with the display screen and the indicating lamp, the display screen is arranged above the indicating lamp, one end of a second rotating shaft is provided with a worm, one side of the worm is connected with a gear, and the other end of the worm is provided with a gear. And a third rotating shaft is installed in the shell and penetrates through the cam and the gear, a through hole is formed in the inner wall of the right side of the instrument body, and a temperature sensor is arranged in the instrument body. According to the comprehensive test instrument for the direct-current quick circuit breaker, the instrument body and the indicator lamps are arranged, the aviation plug on the right side of the instrument body is connected with the handcart switch, and then open circuit detection can be carried out b