Double-layer transport vehicle capable of widening, narrowing, stretching and shortening

Abstract

The invention has the advantages that a vehicle head is not changed, a transportation vehicle body can be widened, narrowed, stretched and shortened. A plurality of groups of longitudinal beams are fixed at two sides of a girder of the transportation vehicle body; carriage plates at two sides are arranged on a drawing groove or a sleeve which can be widened or narrowed towards the two sides of thelongitudinal beams; an I-shaped passing car is arranged at the bottom of the longitudinal beams; the groups of hydraulic telescopic rods and telescopic sleeves are arranged between the vertical plates at two sides; a wheel drum and a tire are arranged on the outer sides of the vertical plates at two sides of the I-shaped passing car; a differential mechanism with the wheel drum capable of widening and narrowing towards the two sides is arranged on the shaft holes of the vertical plates at two sides of a bracket; a lifting device is arranged on the two sides of a lower-layer carriage plate, and the bottom parts of the carriage plates at the two sides of the upper layer are arranged at the top part of a hydraulic telescopic device in the lifting device; a telescopic joint, the telescopic sleeve and the hydraulic telescopic rod are arranged between the front part and the rear part of the transportation vehicle body; the hydraulic telescopic device is arranged in the telescopic joint; a hydraulic jacking device and an auxiliary getting-on and getting-off device are arranged at the tail part; the middle of the tail part is provided with a trailer device; an engine is arranged below a driving chamber, and a brake system, an oil circuit, an air circuit and the like are not changed.

Description

technical field [0001] The invention relates to a double-deck transport vehicle that can be widened and narrowed, stretched and shortened. A shortened double-deck transport vehicle belongs to the technical field of automobile design. Background technique [0002] Existing transport vehicles generally include a headstock, a rear transport vehicle body, a rear transport vehicle body wheel base and a compartment, and the wheelbase and the compartment are all fixed, so the width and length of the transport vehicle cannot be adjusted according to specific conditions. Contents of the invention [0003] The purpose of the present invention is to solve the problems in the above-mentioned prior art, and provide a double-deck transport vehicle with the same front, widened or narrowed wheelbase and compartment, and extendable or shortened wheelbase and compartment, which is characterized in that : the transport vehicle includes a headstock, a front portion of the transport vehicle b...

AI Technical Summary

Problems solved by technology

[0002] Existing transport vehicles generally include the front, the rear transport vehicle body, the rear transport vehicle body wheelbase and the compartment, the wheelbase and the compartment are fixed, so the width and length of the transport vehicle cannot be adjusted according to specific conditions

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