Fixed support device

The utility model relates to a fixed support device which comprises a support component. The support component is provided with fixing holes or slide grooves used for being connected with machinery or parts. The fixed support device further comprises a hanging plate, first bolts and bolt components. The section of the hanging plate is Z-shaped. One end of the hanging plate is connected with the support component through the first bolts. The other end of the hanging plate is provided with a U-shaped opening. The support component and the hanging plate enclose to form a cavity with an opening on one side. The U-shaped opening end of the hanging plate is fixed to the support component through the bolt components. The fixed support device is simple to operate, operable by one hand and evidently lower in labor intensity. The fixed support device is well adaptive to field preset components, and even enables operations in high-risk situations such as aloft work to be safer for workers. The fixed support device has the advantages of high adaptability, simplicity in mounting, low labor intensity and high safety.