A drawer switching device for switch board

The utility model discloses a drawer switching device for switch board, including the switching box body, the top left side of the switching box body is provided with patchplug, patchplug's right side is provided with the through wires hole, the below of the switching box body is provided with the socket, patchplug's lower extreme is provided with line mechanism, the line establishment of institution is internal at switching box, line mechanism includes stiff end and expansion end, the stiff end includes arc spare and the fixed left connecting plate that sets up at arc spare lower extreme, the expansion end includes that the right angle spare of L shape sets up the right connecting plate at right angle spare lower extreme with sliding, left side connecting plate is corresponding with right connecting plate, be provided with insulation support on the through wires hole, insulation support includes the elastic rubber ring of two -layer parallel, elastic rubber ring's centre evenly is provided with a plurality o