Plugging tool for plugging joint of prefabricated part and construction method of plugging tool

The plugging tool comprises a plugging structure used for plugging a seam opening of a seam between two prefabricated structures, and the plugging structure comprises a plurality of plugging units which are connected end to end. Each plugging unit comprises a plugging rod piece, a plugging strip arranged on the side, facing the joint, of the plugging rod piece and a long-strip-shaped rod arranged on the side, back to the joint, of the plugging rod piece, and the head end of each long-strip-shaped rod is provided with an adjustable connecting piece used for being connected with the tail end of the adjacent plugging unit perpendicular to the head end of the long-strip-shaped rod. A locking component is arranged at the tail end of the long-strip-shaped rod. The invention further discloses a construction method of the plugging tool for plugging the joint of the prefabricated part. 本发明公开了一种用于预制构件接缝封堵的封堵工具，包括用以封堵两预制结构之间的接缝的缝口的封堵结构，所述封堵结构包括若干头尾相接的封堵单元，每一封堵单元包括封堵杆件、设置在所述封堵杆件面向接缝一侧的封堵条、设置在所述封堵杆件背向接缝一侧的长条杆，所述长条杆的头端设置用以