The Inner Cover的意思|示意

在内套 The utility model discloses an automatic chuck device for an electric tool cutter, which includes an outer cover, an inner cover and a fixed pin. The inner cover is fixed on an output shaft by the fixed pin. The outer cover is equipped on the inner cover, the head thereof is provided with a chucking piece. A torsional spring is connected between the inner cover and the outer cover. The outer cover has an eccentric and cylindrical inner surface. The output shaft and the inner cover corresponding with a lock hole are provided with mounting holes, which are provided therein with the pins with return springs. The outer cover and the inner cover are provided correspondingly with a limit convex platform and a limit step.