Convenient carrier vehicle

Abstract

The invention discloses a convenient carrier vehicle, which consists of a front vehicle positioned at the front and a trailer positioned at the rear for carrying objects, is provided with three rows of wheels, namely front wheels arranged on a direction lever, rear wheels positioned on a combined part of the front vehicle and the trailer, and trailer wheels positioned at the rear of the trailer, and a driving device, and is characterized in that: the combined part of the front vehicle and the trailer is provided with an expansion or folding device, at least the rear wheels or the trailer wheels are arranged in pairs and in a bilaterally symmetrical mode, and the structure can ensure stable and rapid overland carriage in an extended state and can directly enter and leave an elevator in a shortened state, so that the door-to-door logistics problem in the urban industry is solved.

Description

Technical field: [0001] The invention relates to a portable transport vehicle, in particular to a portable transport vehicle suitable for urban industrial logistics. Background technique: [0002] Now the population density in the center of big cities is getting higher and higher, the distance between buildings is getting closer and closer, the rent cost of factories is getting higher and higher, the division of labor in urban industries is getting smaller and smaller, and the occupied unit area is getting smaller and smaller. It is enough for a factory to use even a small factory building of tens of square meters. [0003] If container transportation solves the door-to-door transportation of large-scale manufacturing, then the scale of the current urban industry is obviously much smaller than that of traditional scale manufacturing. For example, in big cities such as Beijing and Shanghai, every inch of land is expensive, and a multi-storey factory building There may be doz...

AI Technical Summary

Problems solved by technology

[0005] From the specific dimensions above, we can see that in order to fully achieve door-to-door logistics services, the "length by width" of our portable transport vehicle should not be greater than "1.5 meters by 0.8 meters"; The length of a 28-inch bicycle is about 1.5 meters. The size of an ordinary human-powered tricycle has completely exceeded the above-mentioned limit of "1.5 meters by 0.8 meters". However, since the space occupied by the driver's cab is 0.8 meters, which is the lower limit value, the overall length of the mini-motor vehicle is also over 1.5 meters

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