Power distribution cabinet base adaptive liner

The utility model discloses an adaptive liner for a power distribution cabinet base, and the technical scheme is characterized in that the adaptive liner comprises a bottom base plate, the top surfaceof the bottom base plate is provided with a threaded ring part which is integrally formed with the bottom base plate, the outer part of the threaded ring part is in threaded connection with a first bushing, and the ring wall of the first bushing is provided with densely distributed waist-shaped grooves; the top of the first bushing is detachably connected with a second bushing, the top surface ofthe second bushing is provided with a top bushing ring part integrally formed with the second bushing, densely-distributed oval grooves are formed in the wall surface of the top bushing ring part, the top of the top bushing ring part is provided with a top disc part integrally formed with the top bushing ring part, and a first ring sleeve is fixed to the top end of the first bushing; a second ring sleeve is fixed to the b