Handcart propelling mechanism of single phase vacuum circuit breaker in electric railway user

[0019] A handcart propulsion mechanism for an indoor single-phase vacuum circuit breaker for electrified railway users according to the present invention includes a transmission shaft 3, a bearing 2, a crank arm 1, a main shaft 4, an end plate 5, a roller 6 and a hexagonal end 7. The transmission shaft 3 is fixed under the handcart of the circuit breaker through the bearing 2 and the bushing. One end of the transmission shaft 3 is a hexagonal end 7 that matches the sleeve rocker arm. The other end of the transmission shaft 3 is composed of two crank arms 1. The ten bytes are connected to spindle 4. Rotate the hexagonal end 7 with the rocker arm to generate torque, so that the transmission shaft 3 rotates, and transmits to the main shaft 4 through the ten bytes formed by the two crank arms 1, so that the main shaft 4 rotates thereupon. The main shaft 4 is fixed on the lower part of the handcart of the circuit breaker and close to the track through bearings. Both ends of the main s