Novel floor drain core

The novel floor drain core comprises a floor drain core body, a pull ring and a protruding clamping piece, the floor drain core body is connected into a floor drain body in a sliding mode, and a circle of limiting inserting groove is formed in the inner wall of the floor drain body; protruding clamping pieces are symmetrically arranged on the inner wall of the floor drain core, and clamping grooves are formed in the opposite faces of the two protruding clamping pieces. Inserting holes are symmetrically formed in the inner wall of the floor drain core and located under the protruding clamping pieces, the inserting holes are communicated with the limiting inserting grooves, rotating inserting rods are connected into the inserting holes in a sliding inserting and clamping mode, the rotating inserting rods are integrally connected with pull rings, and the bottoms of the pull rings are connected into the clamping grooves in a rotating and clamping mode. When the floor drain core needs to be taken out, the pull rin