Quadruple horizontal moving heat preserving door

The invention introduces a quadruple horizontal moving heat preserving door which is mainly applied to refrigeration houses or production workshops with the temperature requirement. Pallets in the refrigeration houses or the production workshops have large specifications and the whole frame of commodities enter or exist at ordinary times in an uniform mode.. If a single door or a double door is adopted, turnaround space is reserved by pallet frames in the houses or the workshops and full arrangement is not achieved. Whereas, the quadruple door can well solve the problem and thus, the storage capacity reaches the maximum.