Novel drill chuck

The utility model provides a novel drill chuck. A dish-shaped energy storage element is arranged in the drill chuck. The dish-shaped energy storage element is a single dish-shaped ring, the dish-shaped ring is located behind the nut but not directly supported on the middle step of the drill body or directly supported on the nut, a gasket is further arranged in the drill body, the gasket is supported on the middle step, and the dish-shaped ring is supported on the gasket. The disc-shaped ring comprises a top end supporting face, a middle deformation energy storage portion and a rear end supporting portion, the diameter of the top end supporting face is smaller than that of the rear end supporting portion, the rear end supporting portion is supported on the gasket, and a circle of steel balls of the drill chuck are supported on the top end supporting face. For a structure adopting a single disc-shaped ring as an energy storage element, potential energy utilization of an energy storage mechanism can be improved,