| 摘要 |
The present invention relates to a multi-functional air foothold. According to an embodiment of the present invention, the multi-functional air foothold comprises: a bottom plate having a housing portion which is enclosed therein and having at least one penetrated hole on the upper surface; a protruding portion housed in the housing portion and inserted into the penetrated hole to be exposed to the outside; an elastic body for adhering the protruding portion to the penetrated hole; and an air valve for maintaining the housing portion at predetermined air pressure to inhale the external air through the penetrated hole if the protruing portion is pressurized from the outside. Therefore, it is possible to quickly remove foreign matters from the foothold by utilizing the internal or external difference in air pressure of the foothold. |
