| 摘要 |
PURPOSE: A check valve is provided, which enables air to come in and out the shoes when walking while wearing the shoes. CONSTITUTION: A check valve comprises a roll of a thin film which has flexibility inside the cylinder pipe; and a valve attached to the roll of the thin film. The check valve of a triangular shape is attached to two sides of the triangular form inside the cylinder pipe. Inside the shoes, a check valve is installed in the electricity suction pipe and electricity exhaust pipe by installing a suction pipe, an air the exhaust pipe, and a pump. The check valve prevents backward flowing of fluid and artificial blood flow. |
