Single-opening lock cylinder with emergency unlocking function

An outer lock cylinder structure comprises an outer lock container and an outer transmission piece, the outer transmission piece is located at the end of the outer lock container, the outer transmission piece and the end of the outer lock container extend into a shifting wheel assembly together, a rotor lock cylinder structure comprises a rotary knob handle, an inner lock container and an inner transmission piece, one end of the inner lock container is provided with an insertion groove, and the other end of the inner lock container is provided with an opening. Clamping grooves are formed in the two side walls of the inserting groove, an inserting block is arranged at the end of the knob handle, inserting columns are arranged on the two sides of the inserting block, the other end of the inner lock container is used for allowing the inner transmission piece to be inserted, the end of the inner transmission piece and the end of the inner lock container both extend into the shifting wheel assembly, the shifting w