Expansion type lock bolt kit

The utility model provides an expansion type lock bolt suite which comprises a bolt, the bolt comprises a thread part and a rod body part in the length direction, the cross sectional area of the bolt is gradually reduced from the top end to the tail end of the bolt, a sleeve is arranged on the outer surface of the rod body part in a sleeved mode, a linear seam is formed in the outer surface of the sleeve, and the threaded part is arranged in the linear seam. A cushion block is arranged on the outer surface of the threaded part in a sliding mode, a threaded block is connected to the outer surface of the threaded part in a threaded mode, a magnet part is rotationally connected to the top end of the threaded block, and a meshing piece is arranged between the magnet part and the cushion block. According to the utility model, the problem of easy loosening after threaded connection is solved. 本实用新型提供一种膨胀型防松螺栓套件，包括螺栓，其长度方向上包括螺纹部以及杆体部，所述螺栓的顶端至其尾端的横截面积逐渐减小，所述杆体部的外表面上套设有套筒，所述套筒的外表面上开设有一直线缝，所述螺纹部的外表面上滑动设置有垫块，所述螺纹部的外表面上螺