Floating disc with color-changing display function

The utility model discloses a floating disc with a color-changing display function, which consists of a plurality of module box bodies, and is characterized in that mounting holes are arranged on the upper edge and the lower edge of each module box body, a color-changing device is arranged on each module box body, each color-changing device comprises an open shell, an oil inlet is arranged at the bottom of each shell, and an oil outlet is arranged at the bottom of each shell. The side edge of the open shell extends downwards to form an oil guiding paper piece, a color changing layer is arranged on the shell, and the top of the oil guiding paper piece is in lap joint with the color changing layer. The working mode of the color changing device adopts a mode that the color changing layer and the oil product are subjected to chemical reaction, and the working mode of electric signal monitoring and transmission is mainly replaced by the color change, so that the problem of unsafety possibly caused by the electric