The utility model relates to an electric power tech field, and disclose a safety utilization of electric power block terminal convenient to adjust and use, the power distribution box comprises a box body, the positive swing joint of box has the dodge gate, the bottom fixedly connected with PMKD of box, PMKD's bottom fixedly connected with connecting plate, the bottom fixedly connected with spiralshell rasp bar of box, one end that spiral shell rasp bar kept away from the box is through fixed bottom plate and connecting plate and extend to the below of connecting plate in proper order, spiralshell rasp bar's surperficial threaded connection has thread fixing sleeve, thread fixing sleeve is close to the one end and connecting plate contact of box. This safety utilization of electric powerblock terminal convenient to adjust and use, simple structure, it is easy -to -use, can make and move about the block terminal, made things convenient for the staff to adjust the position of block terminal more, the hand can not hindered because of the problem clamp of closing the door to more safety when the staff opens the door the work of examining and repairing simultaneously, uses the convenience that becomes more.