Assembly type stair

Assembly type stair, the ladder comprises an upper cross beam, a lower cross beam and a ladder cant beam fixed between the cross beams, a plurality of step plates are continuously mounted on the ladder cant beam along the ladder cant beam, and the ladder is characterized in that the adjacent step plates are stacked, and bulges arranged on the top surfaces of the step plates are inserted into slotsformed in the bottom surface of the other adjacent step plate at the upper part. The assembly type stair is formed by stacking and assembling the step plates one by one, the step plates make slidingcontact with the stair oblique beams, the adjacent step plates are limited in an inserted mode, the stair oblique beams do not need to be provided with plugs, the requirement for the distance betweenthe plugs does not need to be considered, assembly is easy, the precision requirement is low, and each single step plate is simple in structure and convenient to machine. 一种装配式楼梯，包括上下两个横梁，以及固定在横梁之间的梯斜梁，所述梯斜梁上安装有踏步板，踏步板沿梯斜梁连续安装有