An unhooking preventing device

The invention relates to the technical field of transformers and particularly relates to an unhooking preventing device. The device includes a constant-pressure upper pressing plate, a hanger bracketand a V-shaped baffle plate. One end of the V-shaped baffle plate is perpendicularly fixed to a rotating shaft, and the other end of the V-shaped baffle plate is vertically provided with a baffle shaft extending towards the hanger bracket. When a sling is to be hooked in the hanger bracket, the V-shaped baffle plate is turned about 180 degrees anticlockwise manually, the sling is hooked in the hanger bracket, and then the V-shaped baffle plate is turned manually to the original state, and therefore the V-shaped baffle plate and the baffle shaft stop the side surface and the outside of the hanger bracket, and the sling is completely locked and is prevented from being separated from the hanger bracket at the moment. The device is simple in structure and convenient to operate. 本发明涉变压器技术领域，尤其涉及种防脱钩装置。包括：恒压压板上压板、吊攀以及V型