| 摘要 |
The present invention relates to a connection device for corrugated pipes that connects, in series, corrugated pipes having protrusion parts and concave grooves formed at regular intervals on an outer circumference surface. The connection device for corrugated pipes comprises: a hollow housing; coupling protrusion parts formed at both end parts of the outer circumference of the housing and having protruding walls having penetrating coupling openings formed thereon; a wedge member having an insertion fixing part, so as to combine and fix each of the corrugated pipes inserted into the housing, inserted and coupled in the concave grooves of the corrugated pipes through the penetrating coupling openings of the coupling protrusion parts, and an exterior level part placed above the corresponding insertion fixing part and mounted and supported on the penetrating coupling openings of the coupling protrusion parts; a fixing pin member inserted and coupled through the protruding walls of the coupling protrusion parts and the wedge member to fix the wedge member inserted into the penetrating coupling openings of the coupling protrusion parts; and a stopper unit formed on the middle inner circumference surface of the hollow part of the housing to stably support each of the corrugated pipes in contact with one end part of each of the corrugated pipes inside the hollow part of the connection device regardless of the cutting shape of one end part of each of the corrugated pipes inserted into the hollow part of the housing, and aligning the wedge member to be always inserted easily into the concave grooves of each of the corrugated pipes from the other end part of each of the corrugated pipes by allowing the other end part of each of the corrugated pipes to protrude by a predetermined length from both open end parts of the housing. |
