Fixing device

The utility model provides a single individual fixing device which is easy to dismantle. The utility model is characterized in that the fixing device comprises an inclined surface formed on the lower surface, the head part of a flat surface, a wide cylindrical body which is perpendicularly extended downwards from the head part of the flat surface, a narrow cylindrical body which is perpendicularly extended downwards from the wide cylindrical body but arranged by the eccentricity, and a buckling part which is horizontally far from the eccentricity point and extended from the narrow cylindrical body. By utilizing the fixing device penetrated in holding seat holes and printed circuit board holes, the fixing device is rotated with 180 DEG. The inclined surface is climbed along the inclined surface of the holding seat holes. The fixing device is caused to generate vertical displacement upwards. The buckling part is compelled to top the end edge of the printed circuit board tightly. The purpose that the holding seat is fixed to the printed circuit board is achieved.