Combined transporter and master transporter thereof

A master transporter, comprising:

• a vehicle transferring cart, comprising a bottom support and two side supports connected to two opposite sides of the bottom support;
• an elevating assembly, configured on the bottom support and between the two side supports, wherein the elevating assembly is slidably connected to the two side supports, and the elevating assembly is configured to elevate up and lower down along a direction perpendicular to a main surface of the bottom support and limited by the two side supports, and the main surface of the bottom support is a surface for supporting the elevating assembly,
• wherein the elevating assembly comprises:
• a base board, disposed on the bottom support;
• a vehicle carrying board, stacked on the base board and configured to support the sub-transporter;
• and
• an elevating mechanism, disposed between the base board and the vehicle carrying board,
• wherein the elevating mechanism comprises:
• a first foldable shelf, wherein a first end of the first foldable shelf is hinged to the base board, and a second end of the first foldable shelf slidably connects to the vehicle carrying board and supports the vehicle carrying board;
• and
• a second foldable shelf, wherein a first end of the second foldable shelf is hinged to the vehicle carrying board, and a second end of the second foldable shelf slidably connects to and is supported by the base board, and a middle portion of the first foldable shelf is hinged to a middle portion of the second foldable shelf;
• and
• a driving mechanism, configured to change an intersection angle between the first foldable shelf and the second foldable shelf to drive the vehicle carrying board to elevate up and lower down relative to the base board.