Installation conversion support seat assembly and vehicle

The utility model discloses an installation conversion support seat assembly and a vehicle. The installation conversion support seat assembly comprises a support seat body, a clamping element, a connecting element and a self-tapping element. A first side wall of the support seat body is provided with a through hole, and a second side wall of the support seat body is provided with an abdication through hole. The clamping element is provided with a via hole, the clamping element can be clamped on the second side wall in detachable mode, and the via hole is aligned with the through hole. The connecting element is installed in the through hole and is used for enabling the support seat body to be connected to a metal plate. The self-tapping element penetrates through the via hole and the abdication hole and is used for enabling an inner decorative protective plate to be installed on the support seat body. The installation conversion support seat assembly is provided with the clamping element installed on the support seat body in detachable mode, so compared with an existing installation mode of an inner decorative protective plate, the installation conversion support seat assembly enables the inner decorative protective plate to be connected to the metal plate in detachable mode, and therefore disassembly and installation of the inner decorative protective plate are convenient.