Constant-temperature broccoli seedling raising device

The utility model discloses a constant-temperature broccoli seedling raising device which comprises a transparent box, a rotating assembly is installed on the inner wall of the transparent box, a seedling raising frame is installed on the surface of the rotating assembly, a cooling assembly is installed on the surface of the transparent box, and cooling fins are installed on the surface of the cooling assembly. And a heater is inserted in the back face of the transparent box in a penetrating mode, a temperature sensor is fixedly connected to the top of an inner cavity of the transparent box through screws, and illuminating lamps are fixedly connected to the front side and the rear side of the top of the inner cavity of the transparent box through screws. Through cooperation of the supporting plate, the self-locking motor, the first gear, the rotating rod, the connecting plate, the second gear and the short rod, the seedling raising device has the advantage that the multiple seedling raising frames can be rota