This utility model belongs to the field of water tank technology, and in particular to a pure water tank with an automatic cleaning function. It includes a tank body and a cover. The tank body is equipped with a drain
pipe and a
sewage pipe. A first annular plate is installed on the upper outer surface of the tank body, and a second annular plate is installed on the lower outer surface of the cover. A cleaning component is provided on the cover, and fixing components are provided on both sides of the outer surface of the tank body. This utility model cleans the tank body by installing the cover on the tank body, connecting to an external
water source through an inlet
pipe, and injecting water or
cleaning agent. The
cleaning agent is sprayed onto the inner wall of the spray head through the annular
water storage pipe and the spray head. Combined with the cleaning component, the tank body can be brushed cleaned. The fixing components ensure the stability of the cover installation, allowing for disassembly after cleaning and ensuring normal use of the tank body. The disassembly and
assembly structure is simple and easy to use.