Automatic door closer with impact protection function

The automatic door closer with the impact protection function comprises a door plate fixing shell and a connecting belt, a rotating rod is installed at the top end of the door plate fixing shell through a rotating shaft, a fixing rod is installed at the tail end of the rotating rod through a rotating shaft, an extension rod is connected into the fixing rod in an inserted mode, and the extension rod is connected with the connecting belt. A door frame fixing bolt is mounted at the tail end of the extension rod; a stall sensor is installed at the bottom of the door plate fixing shell, and two sets of electric telescopic rods are installed on the inner wall of the bottom of the door plate fixing shell. The stall sensor and the electric telescopic rod are installed through the door plate fixing shell, when electric energy is conducted to the interior of the stall sensor and when the door plate is impacted and the acceleration is too high, the stall sensor conducts the electric energy to the interior of the electri