Grouting bag type expanded end anchor rod

The utility model relates to the technical field of anchor rods. The utility model discloses a grouting bag type expanded end anchor rod. The device comprises a steel pipe anchor rod and a grouting pipe, a grouting bag is arranged at the bottom end of the steel pipe anchor rod; the top of the steel pipe anchor rod and the top of the grouting pipe are jointly and fixedly connected with a fixing plate. A reinforcing assembly is arranged on the fixing plate; the reinforcing assembly comprises an outer pipe fixed to the fixing plate, an inner plate connected into the outer pipe in a sliding mode,a supporting column fixed to the lower surface of the inner plate, an inserting rod hinged to the lower surface of the inner plate, and a tensioning spring fixed between the inserting rod and the supporting column. The outer pipe comprises a pipe body part and a sharp part fixedly connected with the bottom end of the pipe body part, a strip hole allowing the insertion rod to penetrate through is formed in the sharp part,