Easily change drilling tool of drill bit

The utility model relates to an easily change drilling tool of drill bit, including the button, the turbine, the turbine shaft, the hold assembly, the drill bit member, and shell, the turbine is connected with the turbine shaft, the hold assembly includes the clamping bar, anchor clamps and elastic plate, the upper end side of clamping bar and one side fixed connection of elastic plate, the lower extreme of clamping bar and the upper end fixed connection of anchor clamps, anchor clamps comprise the toper bluff piece of two symmetries, the toper bluff piece sets up the through -hole department in the turbine shaft, and through pressing the button, the toper bluff piece receives the thrust of the shell fragment on the shell and opens, ability convenient and fast's dismantlement drill bit member, be provided with the spring between elastic plate and the turbine shaft, the release button, the spring has the restoring force, it moves clamping bar and anchor clamps upward movement to promote flexible floor belt, an