Waist beam for bus frame

Abstract

The invention relates to a dedicated waist beam for a bus framework. The waist beam is arranged on the left side and the right side of the bus framework horizontally. The dedicated waist beam for the bus framework is characterized in that one side, arranged on the outer side of a bus body, of the waist beam is sequentially provided with a first outer step surface, a second outer step surface and a third outer step surface from top to bottom, wherein the first outer step surface and the second outer step surface extend outwards, and the third outer step surface is concaved inwards. The side, arranged on the inner side of the bus body, of the waist beam is sequentially provided with a first inner step surface and a second inner step surface, wherein the first inner step surface is ejected inwards, and the second inner step surface is concaved outwards. The dedicated waist beam has the advantages that according to the technical sachem, due to an outer connecting piece installing area A, an outer connecting piece installing area B, an inner connecting piece installing area A and an inner connecting piece installing area B, positioning is convenient to carry out during riveting, the manpower labor intensity is saved, due to a glass installing area, during glass installing, the condition of the glass dislocation due to the glass sliding can be avoided, and therefore the installing efficiency is improved.

Description

technical field [0001] The invention relates to an aluminum profile, in particular to a special waist beam for a bus frame. Background technique [0002] At present, the structural forms of the bus body mainly include: 1. Non-load-bearing type, with an independent frame, the body and frame are flexibly connected, and the main body of the load is the frame; 2. Semi-load-bearing type, with an independent frame, the body and frame Rigid connection, the main body of the load is the frame, and the body part participates in the load. When these two traditional structures are hit, the chassis and body will shift, the body is easily deformed and twisted, the strength of the vehicle is weak, the mass of the vehicle is high, the center of mass is high, and the power and fuel economy are poor. [0003] For this reason, Chinese patent CN 101503099A discloses a "large-scale rectangular tube underframe bus full-load body", including the underframe, the left and right ends of the underfra...

AI Technical Summary

Problems solved by technology

Due to the existence of the step structure, not only the height of the vehicle body is increased, but also it is inconvenient for passengers to get on and off the car, and passengers are often crowded in the entrance area

[0004] At present, the body frame on the market is made of iron, which is heavy and consumes a lot of energy. At the same time, some body frames are made of aluminum, but the structure has not changed, which directly affects the performance of the body. Therefore, there is an urgent need A special lumbar beam for the bus frame that can meet the comprehensive performance of the all-aluminum body has been developed. After searching, no technical solution identical or similar to the present invention has been found

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