Strut device for core-hanging operation of transformer

The utility model provides a strut device for core-hanging operation of a transformer, comprising a middle strut (1) and a telescopic support element (3), wherein internal threads are arranged at both ends of the middle strut (1), the telescopic support element comprises a spiral rod (31) and a support part which are respectively arranged at both ends of the middle strut (1), and the telescopic support element is in threaded and matched connection with the middle strut (1) through one end of the spiral rod (31). With the adoption of the utility model, the number of operators is reduced; the technical requirement to the operator is also lowered; and compared with a method of bundling wooden bars, the operation time is shortened, and the safety coefficient of the construction operation is also greatly increased.