Railroad box car inside ceiling panel

Abstract

The invention discloses a railroad box car inside ceiling panel. The railroad box car inside ceiling panel comprises an arc-shaped steel plate fixed to the top of a side wall, and further comprises pieces of cap-shaped steel which are evenly distributed on the inner side of the arc-shaped steel plate around the axis of the arc-shaped steel plate. The gaps between the pieces of cap-shaped steel are filled with heat preservation materials. An arc-shaped structural plate is fixedly arranged on the lower portions of the pieces of cap-shaped steel, and the axis of the arc-shaped structural plate coincides with the axis of the arc-shaped steel plate. The railroad box car inside ceiling panel has the advantages that the heat preservation materials and the arc-shaped structural plate are arranged on the lower surface of the arc-shaped steel plate, rib plates of an existing ceiling panel are omitted, the arc-shaped structural plate is fixedly connected with the cap-shaped steel, the structure of the whole ceiling panel can be formed, the structural performance of the ceiling panel can be improved, the use stability and the excellent weather resistance and mechanical property of glass fiber reinforced polyurethane are brought into full play, the overall rigidity of the ceiling panel can be improved and the appearance is more attractive; meanwhile, polyurethane rigid foam plastic serves as the heat preservation materials, and therefore the heat preservation performance and flame retardant property of the ceiling panel are improved, the use safety is ensured, and the use requirement of a railroad box car is met.

Description

technical field [0001] The invention relates to the technical field of railway boxcars, in particular to an inner top plate of a railway boxcar. Background technique [0002] The box car is a railway wagon with side walls, end walls, floors and roofs, and has sliding doors and ventilation windows on the side walls. It is used to transport valuable goods that are afraid of the sun and rain. Rapidly advancing, the vigorous development of e-commerce has had a huge impact on people's consumption habits and promoted the rapid development of my country's logistics industry. Internet + e-commerce + express railway transportation has become a new branch of freight development. Safe, fast, efficient and environmentally friendly railway transportation can better meet the needs of modern logistics development. The research and development of 160km / h railway box car will be the main vehicle type developed in response to this demand. At the same time, higher requirements are put forwar...

AI Technical Summary

Problems solved by technology

At the same time, higher requirements are put forward for the heat insulation, anti-impact, wear-resistant and anti-skid, environmental protection and recyclability of the boxcar. The existing roof panels generally have two types, one is pure metal structure, and the other is One is to install bamboo laminates on the inner side of the curved steel plate at the top. However, with the development of modern logistics, the transportation of some special goods requires boxcars to have certain thermal insulation performance. The top plate of pure metal structure has poor thermal insulation performance and cannot meet the requirements. The structure with bamboo laminates on the inner side has certain thermal insulation properties, but due to the poor moisture resistance of the bamboo laminates, once it gets wet, cracks or interlayer separation will occur, and it needs to be repaired within a factory repair period. Replacement, at the same time, cracked bamboo laminates may also damage the transported goods, and it is difficult to meet the use requirements of railway boxcars

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