Variable chassis of forcible entry robot

The utility model discloses a variable chassis of a forcible entry robot, which comprises a main beam, two ends of the main beam are respectively and fixedly connected with a supporting leg frame, two ends of the supporting leg frame are respectively hinged with supporting legs, two sides of the main beam are symmetrically provided with cross beams, the cross beams are provided with walking mechanisms, and connecting seats are detachably connected between the main beam and the cross beams. The connecting base is convenient to disassemble and assemble and can be quickly positioned during installation, the connecting base is normally installed in a normal working environment, at the moment, the chassis has a normal working width, and when the working environment of the machine becomes narrow, the connecting base can be disassembled, and the main beam and the cross beam are directly connected, so that the chassis can adapt to narrow work; the robot is simple and stable in structure, low in machining cost, high i