Opening and closing driving isolation mechanism

The invention provides an opening and closing driving isolation mechanism, which comprises a main shaft supporting device, a main shaft, a handle, a main shaft energy storage device, a contact knife assembly, a phase crank arm and a pull rod, and is characterized in that the main shaft is arranged on the main shaft supporting device, the handle is arranged on the main shaft, and one end of the phase crank arm is arranged on the main shaft; the two ends of the pull rod are movably connected with the other end of the crank arm and the contact knife assembly respectively, the pull rod can drive the contact knife assembly to rotate, the main shaft energy storage device comprises an elastic element connected with the main shaft and the main shaft supporting device, and the elastic element can enable the main shaft to rotate or have the rotating movement trend. The number of used energy storage springs can be reduced, the mechanism design is simplified, the problem of clamping stagnation of different shaft mechanis