Assembled universal mold for precast concrete stairs

The invention relates to the technical field of concrete molds, in particular to an assembly type universal mold for precast concrete stairs, which comprises a plurality of coaming blocks and a plurality of stepping blocks, the stepping blocks abut against one another, fixing blocks are arranged on the side walls of the stepping blocks, first fixing grooves are formed in the coaming blocks, the fixing blocks are inserted into the first fixing grooves in a matched mode, and the fixing blocks are inserted into the first fixing grooves in a matched mode. The stepping blocks are provided with assembling assemblies, the assembling assemblies are used for assembling the adjacent stepping blocks, the surrounding plate blocks are provided with locking assemblies, and the locking assemblies are used for locking the fixing blocks. The device has the effects of being adjustable and capable of being recycled and saving the cost at the same time. 本发明涉及一种预制混凝土楼梯用可组装式通用模具，涉及混凝土模具技术领域，其包括若干围板块和若干踏步块，所述踏步块彼此相抵，所述踏步块侧壁设置有固定块，所