Distance-adjustable double-end anti-loosening spring nut assembly

The utility model discloses a distance-adjustable double-end anti-loosening spring nut assembly which comprises a nut body, a circle of annular groove is formed in the top of the nut body around internal threads of the nut body, a plurality of clamping grooves communicated with the nut body are formed in the nut body around the annular groove in an equally-divided mode, pressing pieces with the same number as the clamping grooves are installed on the annular groove, and the clamping grooves are connected with the nut body. The bottom of each pressing piece is provided with a limiting part clamped in the corresponding clamping groove, a spring is wound around the outer wall of each pressing piece, the upper end and the lower end of each spring are each provided with a threaded head, and the upper threaded head and the lower threaded head are sleeved with fixing plates and fixed through small fastening nuts. The nut has the beneficial effects that the pressing piece can achieve another fixing effect except for