Nut operating device capable of preventing corner edge abrasion

The invention provides a nut operating device capable of preventing corner edge abrasion. The nut operating device comprises a first rotary arm (10) and multiple stop blocks (30), wherein the first rotary arm (10) is provided with a through hole (11) with an axis perpendicular to the first rotary arm (10), the multiple stop blocks (30) are evenly distributed along the inner peripheral surface of the through hole (11), and a clamping space matched with a nut is formed by the multiple stop blocks (30) in an enclosing manner. According to the nut operating device capable of preventing corner edgeabrasion, corner edges of the nut can be prevented from damage, and the nut with abraded corner edges can be conveniently disassembled and assembled. 本发明提供一种防棱角磨损的螺母操作装置，所述螺母操作装置包括第一转动臂(10)和多个挡块(30)，第一转动臂(10)上设置有轴线垂直于第一转动臂(10)的通孔(11)，多个挡块(30)沿通孔(11)的内周面均匀布置，多个挡块(30)围合形成与螺母相适配的夹持空间。该防棱角磨损的螺母操作装置有利于避免伤及螺母的棱角，并且，有利于对棱角磨损的螺母方便地拆装。