Integral type flat top plate structure of railway vehicle

Abstract

An integral type flat top plate structure of a railway vehicle is characterized in that the integral type flat top plate structure comprises an inner light-transmitting PC plate, an outer light-transmitting PC plate and a middle interlayer foam honeycomb, a decorative film adheres to the exposed face of the outer light-transmitting PC plate, light-transmitting holes are locally formed in a spotlight area of the decorative film, and an embedded type threaded sleeve is installed on the back face of a flat top plate and used for installing and fixing a spotlight body of a lighting system. A spotlight hole is formed in the bottom of the threaded sleeve, and a fastening nut is arranged at the tail of the spotlight and used for fixing an optical fiber light source connected into the lamp body. On the premise that the strength and the rigidity of the flat top plate are guaranteed, the overall weight can be effectively reduced, and the purpose of reducing the weight of the whole vehicle is achieved. The embedded threaded sleeve is installed on the flat top plate and used for installing and fixing the spotlight body of the intelligent lighting system, the situation that holes are additionally formed in the flat top plate for spotlight installation is avoided, meanwhile, the spotlight body and the top plate are integrated, and the integrity and attractiveness of the flat top plate are improved.

Description

technical field [0001] The invention belongs to the technical field of interior decoration systems for high-speed EMUs, and in particular relates to an integral flat roof structure. Background technique [0002] With the rapid development of my country's high-speed EMUs, high-speed EMUs have played an increasingly important role in our daily travel. The interior decoration of the car body is the most direct passenger interaction interface, and the flat roof area at the end of the EMU is the main part of the interior decoration of the vehicle. Its design should not only meet the functional requirements, but also give people a visual impression Aesthetic feeling, reduce the fatigue of passengers when traveling, and increase the fun of passengers' journey. [0003] Commonly used flat roof materials are fiberglass, plywood, aluminum honeycomb panels and paper honeycomb panels. FRP has low density and good process performance, but its elastic modulus is low, and it is prone to ...

AI Technical Summary

Problems solved by technology

FRP has low density and good process performance, but its elastic modulus is low, and it is prone to aging phenomena, and it is easy to cause performance degradation under the action of ultraviolet rays, chemical media, mechanical stress, etc.; plywood has good strength and stiffness, but compared to other The weight of the material is large; the paper honeycomb material is very light, but its strength and fire resistance are far inferior to the aluminum honeycomb panel, and the aluminum honeycomb flat roof panel is difficult to modify the existing vehicle after forming, and it is difficult for secondary processing

[0004] The existing flat roof spotlight installation method is to reserve openings on the roof, and then use the spotlight bracket to install the spotlight embedded on the flat roof. After installation, the spotlight hole is more obvious, and there will be obvious differences between the spotlight and the flat roof surface. Wrong platform, affecting the integrity and aesthetics of the flat roof

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