Adopting an innovative environmentally friendly design concept, by expanding the folding structure, the folded structure is compact and easy to move and transport. When unfolded on both sides, the house space is increased, creating more possibilities for human living space. The overall house design is made of environmentally friendly materials. , such as recyclable steel, environmentally friendly panels, etc., which meet modern people's requirements for green and environmentally friendly living. The size can be 10 ft, 20 ft, 30 ft, 40 ft, and the area ranges from 18 square meters to 72 square meters. House size The layout supports customization. As a mobile house, it can be quickly assembled and disassembled. It is highly practical and easy to relocate to different places. Whether it is outdoor adventure, camping or emergency rescue, accommodation, work and office, it can provide a convenient living solution.