发明名称 APPARATUS OF MANHOLE SAFETY BLOCK AND IT'S USEING SYSTEM
摘要 PURPOSE: A manhole cover apparatus and a manhole restoring system using the same are provided to quickly and safely cover a removed paved surface, thereby preventing traffic jams, and life and car accidents due to construction, and compose a comfortable construction environment by restraining the generation of fugitive dust. CONSTITUTION: A manhole cover apparatus includes a manhole access hole cover apparatus, and a slab cover apparatus(200). The manhole access hole cover apparatus is larger than a manhole access hole, and is equipped with a separation preventing protrusion in contact with the inner wall of the manhole access hole and a rubber pad. The separation preventing protrusion prevents the manhole access hole cover apparatus from being separated from the manhole access hole. The rubber pad prevent shock and vibration between the manhole access hole cover apparatus and a slab(20). The slab cover apparatus is selectively formed into a hole slab panel(220) or a groove slab panel according to the shapes of the manhole access hole cover apparatus.
申请公布号 KR20130015253(A) 申请公布日期 2013.02.13
申请号 KR20110077149 申请日期 2011.08.02
申请人 LIM, SUN WOO 发明人 LIM, SUN WOO
分类号 E02D29/14;E02D29/12 主分类号 E02D29/14
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