Trolley small in turning radius and capable of preventing turning on side

Abstract

The invention relates to the technical field of four-wheel hand trucks, in particular to a trolley small in turning radius and capable of preventing turning on the side. The trolley small in turning radius and capable of preventing turning on the side comprises a trolley body and a handle located on the longitudinal end of the trolley body, wherein the trolley body is used for bearing objects. The trolley small in turning radius and capable of preventing turning on the side is characterized by further comprising multiple rolling wheels which support the lower side of the vehicle body and can rotate around the horizontal rotation axes of the rolling wheels, the rolling wheels comprise at least two rolling wheel groups which are arranged at transverse intervals, each rolling wheel group comprises a front rolling wheel located at the longitudinal front end of the trolley body and a back rolling wheel located at the longitudinal back end, a transmission structure enabling rotation of the handle into revolution around the vertical rotation axis of the front rolling wheels is arranged between the handle and the front rolling wheels, and a linkage structure is arranged between each front rolling wheel and the back rolling wheel of the same group and enables the back rolling wheel to conduct revolution reversely when the front rolling wheel conducts revolution. The trolley small in turning radius and capable of preventing turning on the side is simple in structure, convenient to use, small in turning radius and suitable for various narrow areas, achieves safer and more stable walking and has great popularization value.

Description

technical field [0001] The invention relates to the technical field of four-wheel trolleys, in particular to a trolley with a small turning radius that can prevent rollover. Background technique [0002] Trolley is a means of transportation that can often be seen in warehouses, freight yards or logistics centers for short-distance cargo delivery. The trolley is economical and easy to use. There are two kinds of trolleys: three-wheel and four-wheel. The four-wheel trolley is more stable and has a higher load capacity. The existing common four-wheel barrow structure usually includes a vehicle frame, a handle connected with the vehicle frame, and wheels arranged below the vehicle frame. The wheels generally include a pair of front wheels and a pair of rear wheels, and the front wheels and the rear wheels are arranged side by side. , in order to facilitate the steering of the four-wheeled trolley, at least one set of the front wheel and the rear wheel is a universal wheel. For ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of large turning radius and prone to rollover of the existing trolley mentioned in the above background technology, and to provide a trolley with a small turning radius that can prevent rollover

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