| 摘要 |
A draining plate for dew prevention is provided to reduce the repairing cost by continually contacting the ends of the supporting columns of the draining plate with the surface of the foundation concrete layer and precluding the concrete crack from occurring. A draining plate(10) for dew prevention comprises a body part(11); plural supporting columns(20) drawn from the body part and downwardly projected; and an expansion unit installed at the supporting columns or integrally formed with the supporting columns, expanded from the end of the supporting column when pouring the concrete or before pouring the concrete, and contacted with the upper surface of the foundation concrete layer. The expansion unit is installed with a corrugated cap(31) whose one end is combined with the end of the supporting column whose one end is opened to be extended by the load or self weight of the concrete when pouring the concrete. |
