Quick fixing device for excavator

The utility model discloses a quick fixing device for an excavator. The excavator comprises an excavator driving case, the upper portion of the outer side of the excavator driving case is connected with an LED illuminating lamp through a rapid fixing mechanism. The quick fixing mechanism comprises a quick fixing part and a quick fixing part, wherein the lower base is fixed above a driving case ofthe excavator through bolts; first supporting rods are hinged to the two sides of the upper portion of the lower base. A sleeve is hinged to the upper portion of the first supporting rod. A threaded rod penetrates through the two sleeves in a threaded mode, the upper portion of the first gear is meshed with a second gear, the two sides of the second gear are fixedly connected with U-shaped bases through connecting rods, the upper portions of the U-shaped bases are connected with LED illuminating lamps through bolts, an inserting rod is hinged to the upper portion of the upper base, and the first gear is provided with