Fixed industry fan is strengthened to blade

The utility model relates to a fixed industry fan is strengthened to blade, it includes fixed disk, blade dish and interlocking dish, the fixed disk is including fixed disk body, and the bottom of fixed disk body is provided with the card to be gone into piece and card and go into the space, and the space is gone into to the card inboard is provided with first spacingly, and the central point of fixed disk body puts and is provided with shockproof piece, the blade dish is including blade disk body and blade, the end of blade passes through the blade retention bolt fastening and pushes up the side at the blade disk body, and the central point of blade disk body puts and is provided with the regular pentagon through -hole, the interlocking dish is provided with the regular pentagon lug including interlocking disk body and interlocking piece, the intermediate position of the top side of interlocking disk body, interlocking piece edge is provided with self -lock device, and self -lock device is the shell fragment