Puncture device for movable relief mural hanging plate

The utility model relates to a piercing device for a movable relief fresco hanging plate, the piercing device comprises a base, a positioning assembly and a needle plate assembly, the base is L-shaped, the positioning assembly comprises a positioning plate and a positioning column, one end of the positioning plate is hinged to the upper end of the vertical section of the base, the positioning column is vertically arranged on the lower surface of the positioning plate, and the needle plate assembly is arranged on the lower surface of the positioning plate. The needle plate assembly is located below the positioning plate and slides in the axial direction of the positioning column, a telescopic rod is arranged between the needle plate assembly and the positioning plate, the needle plate assembly comprises a plurality of pricking needles arranged in an array mode, and the ends of the pricking needles face the base. The utility model aims to solve or at least alleviate the problem that soil falls off when the soil