| 摘要 |
<p>The present invention relates to an external hood cap for ventilation capable of stably supplying air according to the design air volume by the Bernoulli principle without being influenced by the intensity and direction of the external wind due to the climate, preventing rainwater from entering into a room, and preventing wall stains as rainwater is falling away from a wall, According to the external hood cap for ventilation of the present invention, a head wind blocking curved plate part is equipped in the front of a hood cap part, a Bernoulli airflow guiding part is equipped in a discharging hole of a ventilating opening coupling pipe, a rainwater inflow blocking plate part is formed in the upper part of the hood cap part, and a wall separation water falling guiding part is formed in the lower part of both sides of the hood cap part. Therefore, the present invention has an effect of stably supplying air according to the design air volume by the Bernoulli principle without being influenced by the intensity and direction of the external wind due to the climate by forming a Bernoulli airflow guiding part in a discharging hole of a ventilating opening coupling pipe, and having a head wind blocking curved plate part in the front of a hood cap part, preventing rainwater from entering into a room by forming a rainwater inflow blocking plate part in the upper part of the hood cap part, and preventing wall stains as rainwater is falling away from a wall by forming a wall separation water falling guiding part in the lower part of both sides of the hood cap part.</p> |
