A FUEL CHARGING OR ELECTRICITY CHARGING PORT DOOR LOCK AND A FUEL CHARGING OR ELECTRICITY CHARGING PORT LID ASSEMBLY

The present disclosure provides a fuel charging or electricity charging port lid lock, comprising: an elevating shaft (120), a worm gear (113), and a worm (112), wherein the elevating shaft is configured to be capable of moving up and moving down along an axial direction of the elevating shaft and rotating about the axial direction of the elevating shaft when driven by the worm; and a head portion of the elevating shaft is configured to drive a fuel charging or electricity charging port lid so as to control the opening and closing of the fuel charging or electricity charging port lid. The present disclosure further provides a fuel charging or electricity charging port lid assembly, comprising the above lid lock. The present disclosure implements automatic opening or closing of the lid in the lid lock by: using the worm on the motor to drive the worm gear to rotate, then driving the elevating shaft to move, and further causing the fuel charging or electricity charging port lid connected to the head portion of the elevating shaft to move with the elevating shaft. Meanwhile, the present disclosure saves the space needed for opening the lid by controlling the movement trajectory of the elevating shaft and the fuel charging or electricity charging port lid via the trajectory worm at the tail portion of the elevating shaft, causing the lid may be rotated to open.