Fixing device of lighting temperature indicating sheet

The utility model relates to a fixing device of lighting temperature indication sheet, which is characterized by comprising a fixed seat, a push rod mechanism and a connecting piece, wherein the fixing seat is used for placing the lighting temperature indication sheet, the top of the fixing seat is provided with an installation groove with the dimension matched with that of the lighting temperature indication sheet, and the bottom of the fixing seat is provided with a through hole communicated with the installation groove; the push rod mechanism comprises a push rod, wherein the upper section of the push rod penetrates through the through hole of the fixing seat and can move up and down in the through hole, the top end of the push rod is positioned in the installation groove and clamped above the through hole, and the lower end of the push rod and the connecting piece are fixedly arranged; and a spring is connected between the fixing seat and the connecting piece and is sleeved on the push rod. The utility mo