Impact mechanism for electric tool

The invention relates to an impact mechanism for an electric tool. The impact mechanism comprises a driving wheel and a driving shaft, wherein one end of the driving shaft is connected with a driving mechanism in a driving manner. The impact mechanism is characterized in that the other end of the driving shaft, which passes through the driving wheel in a rotating manner, is rotatably connected with a power output part; a slapping block is arranged on the driving wheel; two check blocks are symmetrically arranged at the tail of the power output part and the head of the slapping block is positioned between the two check blocks; a containing groove used for containing steel balls is formed in the driving shaft; and a spring is also arranged between the head of the slapping block and the driving shaft. Compared with the prior art, the impact mechanism has the advantages that the torsional spring is used for energy storage, so that a working head of the electric tool can immediately work along with the starting of