Telescopic desktop power supply connecting seat

The utility model discloses a telescopic desktop power supply connecting seat, which comprises a fixed shell and a movable inner core, the fixed shell is arranged on a desktop, and the movable inner core is nested with the fixed shell; a telescopic structure is connected between the fixed shell and the movable inner core; an external power supply input interface is exposed at the bottom of the fixed shell, a power supply output interface is arranged at the top end of the movable inner core, a plurality of data transmission switching interfaces are arranged on the side wall of the movable innercore, the external power supply input interface is electrically connected with the power supply output interface, and the plurality of data transmission switching interfaces are electrically connected; and the telescopic structure enables the movable inner core to slide and stretch relative to the fixed shell, so that the data transmission adapter is exposed out of the fixed shell or retracted into the fixed shell. Accor