反管器主要由半圆卷筒（1）、卡瓦（2）、压紧螺栓（5）、螺母（4）、挡板（3）及底垫等组成。卷筒中间开有带燕尾槽的卡瓦槽，可放置5块卡瓦，并在两端用挡板定位。其两端凸缘部位各有φ30毫米通孔两个，用于穿入并固定钢丝绳。使用时，用升降机把事故钻具绷紧后，将两块装好卡瓦的半圆卷筒放到底垫上面，用压紧螺栓使卡瓦卡紧钻杆。再将长40米左右、直径16毫米的钢丝绳拆成两股，两端 The tube ejector is mainly composed of a semicircle reel (1), a slip (2), a compression bolt (5), a nut (4), a baffle (3) and a bottom pad. In the middle of the drum there is a dovetail slot with a dovetail slot that holds 5 slips and is positioned at both ends with a bezel. Both ends of the flange parts have two φ30 mm through holes for penetrating and fixing the wire rope. When in use, use the lifter to tighten the accident drill, place two semicircular drums with the slips in place on the bottom mat, and fasten the slips with the clamping bolts. Then about 40 meters long, 16 mm diameter wire rope split into two shares, both ends