脚踏活动式孔口安全台(以下简称孔口台)是我队在建队初期新工人较多,技术操作不熟练的情况下,在工人操作垫叉时,连续发生了被竖机卡盘等砸掉手指头的人身事故后,经研究试制了一种新的孔口设备,经过较长时间的实际应用证明效果良好。现就该工具的优点、构造、使用方法介绍如下: Pedal-operated orifice safety platform (hereinafter referred to as orifice platform) is the case where our team has more new workers and technical operations in the initial stage of the establishment of the team. When the workers operate the fork, the vertical machine chuck is continuously generated. After the personal accidents such as brushing off the fingers, a new type of orifice device was trial-produced and proved to be effective after a long period of practical application. The advantages, structure, and usage of the tool are described below: