Maintenance tool for temporarily fixing anti-loose safety locking plate of overhead line system nut

The utility model belongs to the field of railway power supply maintenance appliances, and particularly relates to a maintenance tool for temporarily fixing an anti-loose safety locking plate of a catenary nut, which comprises a sleeve and a handle which are connected with each other, a pin is arranged at the tail end of the sleeve and on the outer wall of the sleeve, and the direction of the pin is parallel to the axial direction of the sleeve. The sleeve is sleeved with the nut to fix the nut, the pin on the edge of the sleeve is located at the included angle of the locking plate, the locking plate is fixed and prevented from deviating, and the bolt is rotated at the other end for fastening. The pin protruding out of the end face of the socket spanner can fix the locking plate, and the locking plate is effectively prevented from deviating when a bolt and a nut are screwed. 本实用新型属于铁路供电检修器具领域，具体涉及一种临时固定接触网螺母防松安全锁片的检修工具，包括互相连接的套筒和手柄，套筒末端设置有销钉，销钉设置于套筒的外壁，其方向与套筒轴向平行。套筒套接螺母对螺母固定，套筒边缘的销钉位于锁片的夹角处，对锁片进行固定避免锁片跑偏，在另一端