Concrete stirring mechanism convenient to maintain

The utility model discloses a concrete stirring mechanism convenient to maintain. Supporting bottom plate, the middle of the lower end of the supporting bottom plate is fixedly connected with a connecting rotating shaft through a bearing. The front and rear sides of the middle of the upper end of the supporting bottom plate are connected with connecting rotating shafts through supporting frames. The front side and the rear side of the connecting rotating shaft are movably sleeved with a first connecting ring and a second connecting ring correspondingly. The upper end of the first connecting ring and the upper end of the second connecting ring are fixedly connected with a first shell and a second shell correspondingly, the upper end of the first shell and the upper end of the second shell are fixedly connected with connecting sealing strips correspondingly, and the rear end of the first shell and the rear end of the second shell are fixedly connected with a rear cover through fixing rings. According to the con