Electric hydrofoil

An electric hydrofoil, comprising a floating plate, an upright rod assembly arranged at a lower wall of the floating plate, a battery compartment arranged inside the floating plate, a battery pack, a controller, and a compartment cover rotationally connected to an upper wall of the battery compartment, wherein the upper wall of the battery compartment is flush with an upper wall of the floating plate, a lower wall of the battery compartment is flush with the lower wall of floating plate, the lower wall of the battery compartment is fixedly connected to a fixing seat, an upper end of the upright rod assembly is fixedly connected to a fixing plate, the fixing plate is detachably connected to the fixing seat through a quick disassembly structure, both the battery pack and the controller are arranged at a lower wall of an inner side of the battery compartment, the battery pack, the controller and the upright rod assembly are connected through a connector, an upper wall of the compartment cover is provided with two locking holes, inner side walls of the two locking holes are rotationally connected to knobs, lower ends of the knobs penetrate lower walls of inner sides of the locking holes and extend out to a lower side of the compartment cover, a first sealing structure is arranged between the knobs and the locking holes and between the compartment cover and the battery compartment, the lower ends of the knobs are fixedly connected to locking tongues through rotating rods, locking blocks matching the two locking tongues are arranged on a left wall and a right wall of the inner side of the battery compartment, a valve hole is arranged at the upper wall of the compartment cover and positioned between the two locking holes, and a lower wall of an inner side of the valve hole is provided with a press type exhaust valve.