| 摘要 |
<p>The present invention relates to a waterproof vent cap of which the part exposed to the outside is small, thereby not only preventing the appearance of a building from being deteriorated, but also preventing rainwater from flowing into an outlet or an inlet. According to the present invention, a waterproof vent cap installed in a hole in a wall and connected to a duct comprises a cap main body and a cover. The cap main body includes: a pipe-shaped duct-fixed part fixed to be inserted into the duct, and having a flow path at the center thereof; a wall-fixed wing extended from the duct-fixed part outwards, fixed to the wall, and preventing water flowing along the wall from flowing into the duct; and an anti-inflow wing formed on the end of the duct-fixed part, and shaped into a trumpet of which one end is spread outwards at an acute angle. The cover installed on an extended line at the center of the flow path has an area to cover the anti-inflow wing. A space allowing air to flow therein is formed between the anti-inflow wing and the cover.</p> |
