Groove finishing device for concrete floor

The invention discloses a groove finishing device for concrete floor. The device consists of a finishing disc, an installation shaft, a connecting shaft and a handle that are connected in order. The finishing disc is equipped with a mounting hole, the axis of the mounting hole coincides with the axis of the finishing disc, the hole wall of the mounting hole is equipped with a plurality of clampingslots, the axes of the clamping slots are parallel to the axis of the mounting hole, and the clamping slots are symmetrically disposed on the hole wall of the mounting hole along the axis of the mounting hole. The side wall of the installation shaft is equipped with clamping blocks with a consistent number to the clamping slots, when the installation shaft is inserted into the mounting hole, theclamping blocks respectively cooperate with one clamping slot. During use, the handle is held in hand, then the finishing disc is moved into a dent formed by pressing of an embossing mold on the concrete floor and moves back a