Protective device with good protection function

The utility model belongs to the technical field of power distribution cabinets, and discloses a protection device with a good protection function, which comprises a bottom plate, a cabinet body is movably mounted in the middle of the top end of the bottom plate, mounting racks are fixedly mounted on the front and rear sides of two sides of the cabinet body, fixing rods are fixedly mounted on the inner walls of the upper and lower sides of the mounting racks, and the fixing rods are movably mounted on the bottom plate. The inner side of the outer surface of the fixing rod is movably sleeved with a movable block. Through the arrangement of the connecting arms, the buffer plates and the connecting springs, when the two sides of the cabinet body are subjected to external force, the buffer plates are pushed to move oppositely, so that the connecting arms deflect to push the movable blocks to move oppositely, and the opposite force of the movable blocks can be relieved due to the elastic force of the connecting sp