Door opening-closing mechanism and refrigerator provided with same

The utility model provides a door opening-closing mechanism which can improve the usability and comprises a first door, a second door, a rotating separation piece and a guiding mechanism, wherein the first door and the second door are covered on the two sides by using the middle of an opening part of a equipment main body as a dividing line, and are respectively pivotally supported at the two end parts of the opening part; the rotating separation piece can be rotatably arranged at the open end of the first door; the guiding mechanism is used for guiding the rotating separation piece in a rotating manner, arranging the rotating separation piece at the closed position protruding from the side end face of the first door when the first door is closed, and arranging the rotating separation piece on a face basically same as the side end face of the first door when the first door is opened; the guiding mechanism is provided with a protruded part arranged on one of the equipment main body and the rotating separation piece and a guiding part arranged on the other of the equipment main body and the rotating separation piece to guide the protruded part; one of the protruded part and the guiding part is applied with force in the axial direction, and the fist door for arranging the rotating separation piece at the closed position is opened, so that the one of the protruded part and the guiding part retreats in the axial direction while impacting the other one of the protruded part and the guiding part with the force greater than a specified value.