Energy-saving electric heater with heat preservation function

The utility model relates to the technical field of electric heaters, and discloses an energy-saving electric heater with a heat preservation function, which solves the problem that the existing electric heater is usually of a fixed structure and is inconvenient to maintain when damaged, and comprises a heating tank, a heat preservation plate is connected to the inner wall of the heating tank, a water inlet is connected to one side of the upper end of the heating tank, and a water outlet is connected to the other side of the upper end of the heating tank. According to the device, the fixing rod is separated from the fixing sleeve and the connecting base, then the handle is rotated, the handle drives the rotating shaft to rotate, the thread sleeve rotates to drive the two moving blocks to move towards the two sides, the moving blocks move to drive the supporting rods to move, and then the fixing block is separated from the fixing groove; therefore, the protective cover is convenient to open for maintenance, an