Self-locking type centrally installed cabinet transport truck

The invention relates to a self-locking type centrally installed cabinet transport truck which comprises a support body and a lock rod moveably arranged on the support body, wherein the lock rod is equipped with a switch-on position and a switch-off position; a lock rod fastener is arranged on the support body; the lock rod fastener is equipped with a locking position and an unlocking position; the locking position is in blocking fit with the lock rod so as to stop the lock rod moving from the switch-on position to the switch-off position; the unlocking position is capable of removing the blocking fit with the lock rod. Due to the arrangement of the lock rod fastener, after the lock rod of the transport truck is in fitting connection with a centrally installed cabinet, the lock rod is locked and is prevented from moving, and the lock rod also cannot be moved even if the transport truck is forcefully shaken, so that the loosening phenomenon of a hooked part of the lock rod and the centrally installed cabinet c