Which is the best automatic stair climber?

Classification of automatic stair climbers:

      The patented technology of automatic stair climbing machine is a new type of load handling equipment. This equipment is small in size, easy to place, light in weight, easy to operate and very convenient to use. Automatic stair climbers are mainly divided into two categories: cargo stair climbers and manned stair climbers. They are often used in the field of logistics and transportation, and can help people easily move heavy objects up and down stairs.

      Manned stair climbers are suitable for the disabled and the elderly, making them more effortless when going up and down the stairs. Most of them are composed of a metal frame and a pair of wheels. The metal frame uses a mobile support system for moving on stairs, while a pair of wheels is used on flat ground. The automatic stair climbing machine operating rod can be used with most wheelchairs. The control button design is more ergonomic.

       It looks like a small shopping cart, but it can carry about 400 kilograms of goods. When people carry heavy objects up and down, mechanical and high-tech means can be used instead of manual handling. When the freight goes upstairs, the principle of mechanical lever is used to simulate the gait of people when going upstairs, and the equipment and heavy objects are lifted to the next step. When going downstairs, transport the goods to the edge of the stairs, and the braking mechanism will automatically start and stop. At this time, the stair climber is like a Transformer, with two mechanical feet under the fuselage. Like a person going downstairs, the rear wheel goes downstairs and the small wheel retracts. Then climb the next step.