本实用新型公开了一种芯轴橡胶套筒快速锁紧装置,包括弧形挡板、锁紧螺母、定位螺栓、安装套、安装手柄和螺纹通孔;所述安装套为圆环形,弧形挡板设置在安装套的外部弧形壁面上,螺纹通孔设置在所述安装套外部的弧形壁面上,螺纹通孔位于两个相邻所述弧形挡板之间,定位螺栓安装在所述螺纹通孔中;所述锁紧螺母安装在所述定位螺栓上,并 The utility model discloses a quick locking device for a mandrel rubber sleeve, which comprises an arc baffle, a lock nut, a positioning bolt, a mounting sleeve, a mounting handle and a screw thread through hole; the mounting sleeve is in the shape of a circle, The baffle is arranged on the outer arc wall surface of the mounting sleeve, the thread through hole is arranged on the arc wall surface outside the mounting sleeve, the thread through hole is arranged between two adjacent arc baffles, the positioning bolt is installed In the threaded through hole; the lock nut is mounted on the positioning bolt, and