Elbow-shaped terminal head bending device for three-core cable in switch cabinet

The invention provides an elbow-shaped terminal head bending device for a three-core cable in a switch cabinet. The elbow-shaped terminal head bending device for the three-core cable in the switch cabinet comprises a rack rod, a swing rod component, a sliding sleeve, two expansion connecting rods and two driving connecting rods; the sliding sleeve is arranged on the rack rod in a sliding manner; one end of each of the two driving connecting rods is hinged to one end of the rack rod; one end of each of the two extension connecting rods is hinged to one end of the sliding sleeve; the other endsof the two driving connecting rods are respectively hinged with the other ends of the two adjacent expansion connecting rods; a gear is rotationally arranged on the sliding sleeve, and the gear is meshed with the strip-shaped teeth of the rack rod; and the swing rod component is used for driving the gear to rotate. According to the elbow-shaped terminal head bending device for the three-core cablein the switch cabinet, th