| 摘要 |
The present invention relates to a toothbrush capable of performing mechanical cleaning using liquid without solid bristles, and more specifically, to a toothbrush wherein rotary force is provided to a base substrate for bristles using liquid force without using an electric motor, and a portion corresponding to the bristles of the base substrate directly jets liquid instead of the solid bristles, such as nylon bristles, to allow a three-dimensional movement, thereby indefinitely expanding the washable range of the solid bristles and removing the need of replacing the solid bristles due to mechanical abrasion. In the present invention, a waterwheel-shaped structure capable of rotating by liquid is inserted into a base substrate. The flowing liquid rotates the waterwheel structure and flows out, and then again flows in the center of the waterwheel structure and thus flows in an upper bristle plate. Herein, in order to transfer rotary force, a triangular pipe is formed in the center of the waterwheel structure, and a triangular male structure is formed on the upper bristle plate, and thus, the triangular pipe and the upper bristle plate are combined with each other. Several hoes for jetting the liquid are formed in a part corresponding to the bristle plate, and herein, in order to prevent the variation of the jet pressure, the diameter of a connection passage is narrower toward the end and the diameter of the hole is larger. |
