| 摘要 |
<p>The present invention relates to an underground coupling type stake and, more specifically, to an underground coupling type stake capable of preventing separation from the ground and firmly maintaining an embedding angle by being firmly fixed while being inserted underground when installing and fixing a tent structure or a vinyl film structure. According to the present invention, the stake for installing and fixing the tent structure or vinyl film structure such as a tent and a tarp or a vinyl greenhouse is characterized by including a pipe type hollow pile having open top and closed bottom while the front end is sharp to be smoothly inserted underground; a pair of expansion wings penetrating underground around the hollow pile more by bidirectional rotation while being joined on both sides of the circumference of the hollow pile; and an insert pile facilitating the underground insertion of the hollow pile by rotating the expansion wings using a separate fastening tool and hitting using a separate hitting tool.</p> |
