trolley Two rounds of the wheelbarrow in the form of more stable ground

trolley

Wheelbarrow is a small human-driven vehicles. It is consistent with the ergonomics, and can withstand the rough road surface, but can not be tilted too much ground transportation for supplies or tools.

The use of leverage and the wheelbarrow load resistance to near the fulcrum point (ie the wheel) and make their own operational efficiency, but also to share in the wheelbarrow and load on the operator. Because of the heavy or large wheelbarrow load become easily mobile, so it at construction sites, agricultural land, the garden is essential. Two rounds of the wheelbarrow in the form of more stable ground, and the more common form of single-round balance in volatile places such as small size, ceiling or tilt of the road have a higher operability, and the uninstall process will be easier to control .

Construction with two trolleys