Multifunctional Stair-Climbing Assistant Cart

This design is an innovative improvement on the existing stair-climbing carts in today's society. It is a practical part of product design and development, combining modern design theories and methods used in development. The specific innovations are as follows: 1. Achieves a detachable design between the chassis and the cart basket, making the cart suitable for multiple applications, not limited to transporting only one type of item. It can replace a shopping cart. The use of simple pin fixing allows for disassembly. 2. The chassis is foldable, and the pull rod is telescopic, reducing storage space. The telescopic pull rod can be adjusted to different angles and heights. 3. Achieves labor-saving transport with a motor, utilizing the motor for assistance, making stair climbing easier, no longer relying solely on human power for transport. An adjustable support roller is added to the pull rod, facilitating the movement of the cart. Meanwhile, the rear support can be folded and angled to suit varying inclines, further reducing human input and enhancing vehicle stability. 4. Dual power supplies are used, with solar energy available for charging, providing clean energy, and a USB outlet at the power output end to charge phones. Alternatively, regular household power can be used for charging during cloudy and rainy weather. 5. Additional features such as a GPS module can be equipped on the cart, especially when used by the elderly, enabling real-time location tracking, which prevents them from getting lost or separated from family members. Attached manual