Self-locking type fastening bolt for new energy automobile

The self-locking type fastening bolt for the new energy automobile comprises a head part, a groove is formed in the top of the head part, a screw rod is fixedly connected to the bottom of the head part, a nut is connected to the outer wall of the screw rod in a threaded mode, a rotating rod is rotationally installed in the screw rod, and a locking nut is installed in the rotating rod. The top end of the rotating rod penetrates through the head and is located in the groove, the poke rod drives the rotating rod to rotate by rotating the poke rod, under the cooperation of the two sets of limiting grooves and the two sets of limiting blocks, the sliding block can move by arranging external threads, the sliding block drives the four sets of springs to move, and the four sets of springs drive the two sets of clamping blocks to move correspondingly. And when the two sets of clamping blocks move, the two sets of pulleys are driven to slide on the inner wall of the screw rod correspondingly, finally, the two sets of c