Tidal current energy generating device

A tidal current energy generating device, comprising:

• a generator;
• a connecting shaft;
• an impeller;
• and
• an adjustment assembly;
• wherein the impeller comprises an impeller blade and an impeller hub, and the impeller blade is arranged on the impeller hub;
• the impeller hub is connected with the connecting shaft, and the generator is connected with the impeller hub;
• the impeller blade is configured to drive the impeller hub to rotate synchronously around an axis of the connecting shaft under an action of a tidal current, so as to drive the generator to generate electricity;
• the adjustment assembly is connected with the impeller blade;
• the adjustment assembly is configured to swing under the action of the tidal current to drive the impeller blade to rotate around an axis of the impeller blade relative to the impeller hub to adjust an angle of the impeller blade, such that an energy received by the impeller blade from the tidal current is adjusted to adjust a rotating speed of the impeller blade around the axis of the connecting shaft, adjusting a power of the generator;
• and
• wherein the adjustment assembly comprises an adjustment wheel and an adjustment plate;
• the adjustment plate is provided with a concavo-convex portion;
• the adjustment wheel is configured to abut on the concavo-convex portion, and the adjustment wheel is connected with the impeller blade;
• the adjustment plate is configured to move relative to the adjustment wheel along a first direction or a second direction opposite to the first direction under the action of the tidal current, so that a position where the concavo-convex portion is in contact with the adjustment wheel is changed to drive the adjustment wheel to swing to drive the impeller blade to rotate around the axis of the impeller blade relative to the impeller hub, so as to adjust the angle of the impeller blade.