Hammer

The invention relates to a hammer, which comprises a hammer handle and a hammer head, wherein one end which is provided with the hammer head of the hammer handle is the front end of the hammer handle, the other end is the tail end of the hammer handle, and the hammer also comprises a channel, a heavy object, a driving device, a recognition device and a control system; one end of the channel is close to the front end of the hammer handle and is the front end of the channel, and the other end of the channel is close to the tail end of the hammer handle and is the tail end of the channel; the heavy object is arranged in the channel; the heavy object is driven to move in the channel by the driving device; the recognition device is used for recognizing whether the hammer is in a hammer lifting process or in a hammer dropping process; and the driving device is controlled by the control system according to the signal input of the recognition device to drive the heavy object, more specifically, the heavy object is driven to move to the tail end of the channel in the hammer lifting process, and the heavy object is driven to move to the front end of the channel in the hammer dropping process. The hummer disclosed by the invention has the advantages of simple and reasonable structure, convenience in manufacture and installation, wide scope of application and strong maneuverability, and the labor intensity is reduced.