Residue detection structure and personal care equipment

The utility model provides an allowance detection structure, which is applied to personal care equipment and comprises a preparation storage box, a pushing piece is arranged in the preparation storage box, a rotating block is arranged on the pushing piece, the pushing piece drives the rotating block to move, a magnet is arranged on the rotating block, and at least one Hall sensor is arranged on the preparation storage box. The preparation storage box is provided with at least two Hall sensors, the Hall sensors are arranged at intervals, and the detection ranges of the Hall sensors are at least partially overlapped; the Hall sensor is arranged on one side of an opening in the middle or the end part of the wall surface of the preparation storage box in the length direction, and the Hall sensor is a linear Hall sensor or a switch type Hall sensor; the magnets on the rotating block can be arranged to integrally surround the circumferential direction of the rotating block and can also be arranged in the rotating b