Built-in self-locking adjustable elastic nail clipper

The utility model provides a built-in self-locking adjustable elastic nail clipper which comprises a main clipper body and an auxiliary clipper body, a clipper head of the main clipper body is provided with a connecting hole, a shaft hole, a main buckling position, a spring limiting hole and an auxiliary buckling position, the main buckling position protrudes outwards to be arranged on the two side edges of the clipper head and is movably buckled with a lock catch position arranged on an anti-splashing outer box, and the auxiliary buckling position is provided with a spring limiting hole. The four auxiliary buckle positions are arranged on the inner wall of the upper edge of the shaft hole in a semicircular mode, a shaft cavity and a spring fixing hole are formed in a tong head of the auxiliary tong body, an elastic adjusting shaft is arranged in the shaft cavity and provided with main threads, auxiliary threads, an elastic adjusting rotating center, an adjusting clamping groove and a shaft head clamping groo