QYWB type universal pre-tensioning elevator is a type of elevator specially developed for lifting, overturning and assembling of steel structure parts. QYW type universal pre-tensioning elevator is provided with a pre-tensioning device. Before lifting, the pressure angle exerts a certain pre-tensioning force on the workpiece under the action of the spring; during the lifting process, as the load increases, the clamping force increases, ensuring safe and reliable lifting. This type of elevator is used for operations. The suspended object can be moved vertically or horizontally without changing the state, and the workpiece can also be reversed, which is especially suitable for assembly and use. The universal ring is within a certain angle range, which can make the elevator hoist in three dimensions.