Thermal insulation device of storage tank for microbial bacterial liquid

The utility model discloses a storage tank heat preservation device for microorganism bacterium liquid. The storage tank heat preservation device comprises a box body, a support device is arranged on the inner side wall of the box body, a storage tank is arranged in an inner cavity of the support device, a copper sheet is installed on the top of the box body, water tanks are symmetrically and fixedly connected to the side walls of the copper sheet, a water inlet pipe is installed on the top of each water tank, and a water outlet pipe is installed at the bottom of each water tank. Sunlight is shielded through the box body, meanwhile, the storage tank can be lifted through the support device, heating or damp and direct sunlight are avoided, meanwhile, the outer wall of the top of the box body is thin, heat at the top of the box body is absorbed through the copper sheet, then water is injected into an inner cavity of the water tank through the water inlet pipe, cold water can flow in the water tank, and heat con