| 摘要 |
<p>The present invention relates to a drainage device for a rain and snow gauge measuring rainfall precipitation or melting snow. More specifically, the drainage apparatus enables a drainage pipe (31) to be coupled to an upper portion of a drain hole of a base and discharges the rainfall or the melting snow toward the lower side after measuring the rainfall precipitation or the melting snow. The drainage pipe (31) integrally forms a water splashing prevention bump (34), which has a tilt guiding surface (33) inwardly tilting from the upper side to the lower side, with a resin material into a lower inner periphery of an inner through-hole (32) to have excellent manufacturing productivity. The drainage apparatus prevents the drainage pipe from being frozen as in a prior art to smoothly provide a draining operation and to prevent a malfunction of a tipping bucket due to water splashing toward the upper side of the drainage pipe to provide excellent reliability of use.</p> |
