Power distribution bus terminal clamping head

The utility model belongs to the technical field of cable connection, and particularly relates to a power distribution bus terminal clamping head which comprises two limiting clamping sleeves, overturning clamping sleeves are hinged to the side walls of the two limiting clamping sleeves, and a plurality of line insertion limiting strips are fixedly connected to the inner walls of the overturning clamping sleeves. An outer ring expansion assembly is arranged between the two limiting clamping sleeves and comprises a containing groove pipe, two expansion supporting blocks and two guide blocks. The limiting clamping sleeve and the overturning clamping sleeve wrap the end of the cable to prevent the outer ring wire strand of the cable from being loosened, and the limiting clamping sleeve and the overturning clamping sleeve can be limited by means of the wound wire strand when the wire strand at the end of the cable is not deformed. The limiting clamping sleeve and the overturning clamping sleeve do not make contac