The expansion design of trolley cases aims to provide users with more storage space through clever structural adjustments to adapt to different travel needs.
The expansion design of trolley cases is usually based on a retractable or foldable structure, which increases the capacity by changing the space layout inside or outside the case. This design allows users to flexibly adjust the size of the case according to the amount of luggage.
Many trolley cases have expansion layers on the side or top of the case. These expansion layers are usually fixed by zippers or buttons. Users only need to unzip or press buttons to expand the expansion layers to increase the capacity of the case. This design is simple and practical and suitable for occasions where extra space is needed.
Some high-end trolley cases use a folding wall design to achieve expansion. This design usually has built-in foldable partitions or brackets. When more space is needed, users can increase the internal height or width of the case by unfolding the folding walls. The folding wall design not only increases the capacity, but also maintains the stability and durability of the case.
In addition to the external expansion layer, some trolley cases also allow users to adjust the layout of the built-in compartments. By moving or removing the compartments, users can flexibly allocate the space in the case to accommodate luggage items of different sizes and shapes.
In order to achieve the expansion design, trolley cases are usually made of materials with a certain degree of elasticity and toughness. These materials can deform without breaking when subjected to external forces, thus ensuring the stability and durability of the case during the expansion process.
The expansion design focuses not only on increasing capacity, but also on the convenience of operation. The expansion operation of many trolley cases is very simple and quick, and users can complete the expansion or restoration in just a few seconds.
The expansion design is suitable for various travel scenarios, especially when the journey time is long or more luggage needs to be carried. By adjusting the capacity of the case, users can easily accommodate all necessary items and enjoy a more pleasant travel experience.
