| 摘要 |
The present invention relates to a device for circularly drilling and cutting a road surface to repair a manhole, capable of circularly cutting the road surface of a part of the manhole to be repaired around the manhole in order to repair the manhole installed in the road and, more specifically, relates to a device for circularly drilling and cutting a road surface to repair a manhole, capable of cutting a road up to a base layer while varying the cut radius of the road surface of a part of the manhole to be repaired. The device for circularly drilling and cutting a road surface to repair a manhole includes: a vertical rod (100); a manhole housing supporter (200) installed in the vertical rod to adhere closely to an inner wall surface of a manhole housing (H); a rotary screw rod (300) installed on the upper part of the vertical rod (100) to be able to idle; a horizontal supporter (400) coupled to the rotary screw rod (300) and moving upward along the rotary screw rod (300); and a cutting unit (500) installed in the horizontal supporter (400) and circularly cutting the road surface around the manhole while being lifted upward along the horizontal supporter (400). |
