Assembly type stair grouting support

The utility model relates to the technical field of grouting, in particular to an assembly type support for stair grouting, and provides the assembly type support for stair grouting, which can save manpower, reduce mortar caking, improve grouting effect and enhance practicability. Comprising a grouting cylinder which is used for storing mortar; the grouting assembly is used for injecting mortar in the grouting barrel into the mounting hole, the grouting assembly comprises a mounting groove, multiple sets of first mounting plates, multiple sets of first screws, multiple sets of first connecting plates, two sets of first motors, two sets of first rotating rods and a pushing sliding block, the mounting groove is provided with a grouting pipe in a communicating mode, and the mounting groove is slidably sleeved with the grouting barrel; and the multiple sets of first mounting plates are fixedly mounted on the grouting cylinder, the multiple sets of first connecting plates are fixedly mounted on the mounting groove