Integrated bottom support car frame equipment with efficient layout

The utility model discloses efficient layout integrated type bottom support car frame equipment, and relates to the field of elevators, the efficient layout integrated type bottom support car frame equipment comprises a main portal frame assembly and two auxiliary portal frame assemblies, the two auxiliary portal frame assemblies are symmetrically distributed on the front side and the rear side of the main portal frame assembly, and the main portal frame assembly comprises two main vertical beams which are symmetrically arranged left and right; the main portal frame assembly and the rope returning lower beam are integrated, and a lower beam structure needing to bear main loads and local impact force of safety tongs and buffers is made of large-specification materials corresponding to the main portal frame assembly and the rope returning lower beam. The structural layout has obvious pertinence, the integrity of the structure can be guaranteed, the potential of materials can be excavated as much as possible, an