Semi-trailer

Abstract

The invention relates to the technical field of trailers, and discloses a semi-trailer carriage, comprising a box and a support beam fixedly connected to two ends of the box body, wherein a top coveris hinged to the support beam, a driving cylinder is arranged between the top cover and the support beam, an end part of the top cover is provided with a side cover, a joint between the side cover andthe top cover and a joint between the support beam and the top cover are located on two sides of the top cover, the width of the top cover is smaller than the distance between the two ends of the boxbody, the width of the side cover is smaller than the depth of the box, when the top cover covers the box, two ends of the top cover are located between the two ends of the box, the top of the side cover and the top of the box have the same height, and the bottom end of the side cover is higher than that of the box body; the semi-trailer carriage further comprises a plurality of adjusting and limiting plates, the length of each adjustment limit plate is equal to or smaller than the distance between the two ends of the box, a cover body is provided with a first fixing structure for fixing theposition of each adjusting and limiting plate, and two ends of the box are provided with a second fixing structure for fixing the position of each adjusting and limiting plate. The semi-trailer carriage has the following advantages and effect: the safety of loading and unloading is improved.

Description

technical field [0001] The invention relates to the technical field of trailers, in particular to semi-trailer compartments. Background technique [0002] A semi-trailer is a trailer whose axle is positioned behind the vehicle's center of gravity (when the vehicle is evenly loaded) and is fitted with a hitch that transmits horizontal and vertical forces to the tractor. Semi-trailers are generally three-axle semi-trailers, and their types are divided into 11-meter warehouse semi-trailers, 13-meter warehouse semi-trailers, and low-bed semi-trailers. It is a heavy-duty transport vehicle connected to the semi-trailer head through the traction pin. [0003] The semi-trailer compartment is towed and driven by the semi-trailer, and the goods are located in the compartment when the goods are transported; when unloading, the door of the compartment is driven by a structure such as an oil cylinder to form a flying wing and opens to facilitate the unloading of the goods. Among them, ...

AI Technical Summary

Problems solved by technology

[0003] The semi-trailer compartment is towed and driven by the semi-trailer, and the goods are located in the compartment when the goods are transported; when unloading, the door of the compartment is driven by a structure such as an oil cylinder to form a flying wing and opens to facilitate the unloading of the goods. Among them, if the cargo is light in weight, the door can be fully opened directly, so that the cargo will not be dumped, etc.; but if the cargo density is high, after the door is fully opened, the cargo at a higher place will easily fall due to the center of gravity. Instability and dumping, the safety of loading and unloading is poor

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