Stable cabin door structure for casing

The utility model provides a stable cabin door structure for a casing. The device comprises a base, a machine shell and a cabin door assembly, the base and the machine shell are integrally formed, a battery cabin opening is formed in one side of the machine shell, the cabin door assembly is located on the side, close to the battery cabin opening, of the machine shell, two protruding first limitingcheck blocks are integrally formed at the bottom of the base, and a first screw hole is further formed in the bottom face of the base; the cabin door assembly comprises a split seat and a cabin doorplate which are connected in a pivoted mode, a first positioning hole is formed in the split seat, a first screw penetrates through the first positioning hole to be in threaded connection with the first screw hole, a first pivoted part is arranged on the side, close to the battery cabin opening, of the split seat, a second pivoted part is arranged at the bottom of the cabin door plate, and the shaft rod penetrates through