| 摘要 |
The present invention relates to a concrete mixer which mixes by receiving sand, pebbles, cement, mineral admixture, and water, the mixer comprising the following: a body where a first driving shaft, which rotates by being connected to an external driving source on one side, and a second driving shaft, which rotates by being connected to the external driving source on the other side, are respectively installed; a first arm portion vertically protruding about the first driving shaft; a pair of first wing portions where a start end is connected to the first arm portion, and mixing various kinds of subsidiary materials which are supplied inside the body since an end is installed as being twisted in a spiral shape toward the internal center of the body; a second arm portion vertically protruding about the second driving shaft; a pair of second wing portions where a start end is connected to the second arm portion, and mixing various kinds of subsidiary materials which are supplied inside the body since an end is installed as being twisted in a spiral shape in order to make the end is connected to the first wing portion; and a connecting portion which vertically connects connecting parts of the first wing portion and the second wing portion, and rotating together with the first wing portion and the second wing portion. |
