Operation and maintenance device for assisting installation of cross arm

The invention discloses an operation and maintenance device for assisting cross arm installation, and the device comprises a basic mechanism which comprises two housing assemblies, two lever clamping assemblies, a rotary buckle, and a connecting piece, the housing assemblies and the lever clamping assemblies are symmetrically arranged up and down, and the connecting piece is used for connecting the two housing assemblies; each sliding recovery mechanism comprises a pulley assembly, a recovery steel wire rope assembly, a recovery pulley assembly and a cross arm loading assembly, and the sliding recovery mechanisms are symmetrically arranged on the two sides of each basic mechanism; the auxiliary tool can be applied by operation and maintenance workers, portable design is adopted, carrying is convenient, the use cost is saved, the construction operation efficiency is improved, the cross arm supporting frame is provided with a buckle clamping groove, the cross arm can be fixed in the clamping groove so that the