Synchronous shaft manual opening mechanism

The utility model relates to a synchronizing shaft manual opening mechanism, which comprises a synchronizing shaft arranged outside a mechanism box. One end of the synchronizing shaft is coaxially provided with a shaft sleeve, and the other end is coaxially provided with a manual opening shaft; the shaft sleeve is fixed with the mechanism box, the end part of the manual opening shaft is respectively fixed with the middle part of the travel switch pressing plate and the manual opening handle, and one end of the travel switch pressing plate is connected with a spring in a reset device fixed on the mechanism box; the other end of the travel switch pressing plate presses a magnetic control coil travel switch fixed on the mechanism box under the action of a reset device in a reset state, and a closed point of the magnetic control coil travel switch is connected in series with a magnetic control coil in the magnetic control mechanism; and the synchronizing shaft is provided with a crank arm which is matched with an