Trolley

Abstract

The invention relates to a trolley which comprises a flat plate (1), a handrail (2) connected with the flat plate (1) and wheels (3) arranged below the flat plate (1), wherein a fence (4) is arranged at the periphery of the flat plate (1); and an auxiliary wheel assembly is arranged between the flat plate (1); the auxiliary wheel assembly comprises a pair of support legs (5), auxiliary wheels (6) rotatably arranged at the bottoms of the support legs (5), a rotating shaft (7) connected to the tops of the support legs (5) and a contracting and releasing device used for movably contracting and releasing the support legs (5) and the auxiliary wheels (6); and the two ends of the rotating shaft (7) are hinged below the flat plate (1). According to the trolley, the original independent wheel is provided with two auxiliary wheels, when the trolley encounters a complex road surface, the auxiliary wheel assembly can fall off so as to participate in traveling, so that the trolley can keep balance more easily and can smoothly pass by the complex road surface, objects can be effectively prevented from dropping off, time and labor are saved, and the application range of the trolley is enlarged, and the trolley is quite applicable to fire safety.

Description

technical field [0001] The invention relates to the technical field of unicycles, in particular to a trolley which is improved on the technology of unicycles and can ensure driving balance, and is especially suitable for use in fire protection. Background technique [0002] The wheelbarrow is widely used because of its lightness and convenience, and the unlimited width of the transportation road. Especially in rural areas, when people are planting, fertilizing, and harvesting, wheelbarrows have become a good tool for transporting fertilizers, pesticides, grains and other crop materials. A traditional wheelbarrow is generally provided with a wooden board for shelving items above the wheels, and a strap is also put on when people push the wheelbarrow, so as to control the stability of the wheelbarrow and prevent it from moving too fast when going downhill. [0003] On the other hand, there is not yet a kind of wheelbarrow that can keep the vehicle stable quickly and effective...

AI Technical Summary

Problems solved by technology

[0003] On the other hand, there is not yet a kind of wheelbarrow that can keep the vehicle stable quickly and effectively, and there is no a kind of handcart specially used for transporting fire-fighting equipment. If this traditional wheelbarrow is used as carrying fire-fighting articles, there are many defects: the first, Since there is no frame around the wooden board, when walking around, if you don’t pay attention, the items are easy to fall. In the actual use process, the unicycle needs to maintain a good balance; second, the unicycle is not stable enough, and it is easier When you lose your balance and need to pass through complex roads, such as bumpy roads such as gravel roads, walking is particularly difficult, time-consuming and laborious, and will delay time. This makes the use of traditional unicycles have greater limitations and inconvenience.

Images