Self-adaptive base facing complex rugged road surface under heavy load working condition

The invention discloses a self-adaptive base for a complex rugged road surface under a heavy load working condition. Comprising a shell cover, a shell, a linear guide rail, a sliding block, a foot sleeve, a linear bearing, a linear bearing sleeve, a rotary optical shaft and a tension spring. Threaded holes used for being fixed to the box body in a matched mode are evenly distributed in the edge of the end face of the shell cover. The four semicircular groove stand columns on the lower end face of the shell cover and the four semicircular grooves in the box body are matched to form round holes used for supporting rotation of the six linear shaft sleeves. Six positioning holes matched with the linear guide rail are uniformly distributed in the inner bottom surface of the shell, so that the linear motion of the linear guide rail relative to the shell is ensured; the twelve positioning holes for fixing the sliding blocks are formed in the inner bottom face of the shell, the sliding blocks are fixed to the bottom