发明名称 MAN HOLE OPENING APPARATUS
摘要 PURPOSE: An opening device for a manhole cover is provided to enable a worker to conveniently and safely open a manhole cover using a small amount of power. CONSTITUTION: An opening device for a manhole cover comprises a horizontal frame(10), a lever(20), and a lifting unit(50). Wheels(11) are formed in both sides of the horizontal frame. The lever is formed in the center of the horizontal frame, and the length of the lever can be adjusted through a length adjusting unit(30). The lifting unit is hung on the front end of the lever and is detachably formed on the top of a manhole cover. The lifting unit separates the manhole cover from a manhole support frame.
申请公布号 KR101122498(B1) 申请公布日期 2012.03.16
申请号 KR20100110405 申请日期 2010.11.08
申请人 YONG JIN ENVIRONMENT CO., LTD. 发明人 JANG, SANG KI;JUNG, KWANG YOUNG
分类号 E02D29/14 主分类号 E02D29/14
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