Electric heating tube mounting mechanism of electric oven

A mounting mechanism for an electric heating tube of an electric oven comprises the electric heating tube and a terminal connecting assembly connected with the electric heating tube. Connecting terminals are arranged at two ends of the electric heating tube; the terminal connecting assembly comprises a terminal box, an insulating electric wood block arranged in the terminal box, and a sealing ring which sleeves the connecting terminal and is positioned between the terminal box and the insulating electric wood block; two first through holes are formed in the insulating electric wood block, and connecting terminals of the electric heating tube penetrate through the first through holes and are located in the terminal box. The metal base is clamped with the clamping surface of the bottom surface of the electric heating tube, and the upper cover is clamped with the clamping surface of the top surface of the electric heating tube, so that the front-back movement of the electric heating tube in the horizontal plane