Ceiling wrapping corner and ceiling framework assembly

Abstract

The invention provides a ceiling wrapping corner and a ceiling framework assembly. The ceiling framework assembly comprises two ceiling wrapping corners, at least two transverse beams, at least two longitudinal beams, connecting pieces and compressing blocks. The two ceiling wrapping corners are perforated in the front-back directions, the transverse beams are positioned between the two ceiling wrapping corners, the longitudinal beams are positioned between the adjacent transverse beams, riveting accommodating cavities are arranged on the end surfaces of the inner sides of the upper ends of the ceiling wrapping corners and comprise first grooves and second grooves, the second grooves of each riveting accommodating cavity are formed in two opposite inner side walls of the first groove of the riveting accommodating cavity, the shapes of the first grooves are matched with those of the connecting pieces, and the shapes of the second grooves are matched with those of the compressing blocks.

Description

technical field [0001] The invention relates to the technical field of bus frames, in particular to a roof wrap angle and roof frame assembly. Background technique [0002] The roof skeleton of the existing bus is composed of several longitudinal beams and several cross beams spliced ​​together. A horizontal aluminum profile and several vertical aluminum profiles, the horizontal aluminum profile and the longitudinal aluminum profile form a fixed structure in a network structure, and the horizontal aluminum profile and the longitudinal aluminum profile are fixedly connected by a riveting structure; the horizontal aluminum profile It includes two transverse main aluminum profiles running through the transverse direction of the top circumference of the bus frame and several transverse auxiliary aluminum profiles distributed outside the two transverse main aluminum profiles. Although the overall structural strength and rigidity of the top wall are improved by two transverse mai...

AI Technical Summary

Problems solved by technology

Although the overall structural strength and rigidity of the top wall are improved through two main transverse aluminum profiles that run through the transverse direction of the top wall of the bus frame, the overall load-bearing capacity of the bus frame is still on the riveted structure.

[0003] The above-mentioned utility model patent also discloses a riveting structure, the riveting structure includes a non-load-bearing riveting structure of the top cover and a fixed riveting structure inside the top cover, and the non-load-bearing riveting structure of the top cover includes a riveting plate A, a rivet group A and a rivet group B The riveting plate A includes a fixed plate A and two limiting plates A and B that are vertically fixed on the fixing plate and arranged parallel to each other, and a gap is formed between the limiting plate A and the limiting plate B. Groove for profile B to be embedded; the fixed riveting structure in the top cover includes a riveting plate B, rivet group C and rivet group D, and the riveting plate B includes a fixing plate B and two pieces vertically fixed on the fixing plate The limiting plate C and the limiting plate D arranged on top of each other, the limiting plate C and the limiting plate D form a limiting plate group that can be embedded in the profile D, as attached to the description of the above-mentioned utility model patent figure 2 with instructions attached image 3 As shown, although the riveted structure can enhance the stability of the connection between the riveted plate and one of the two perpendicular aluminum profiles, the shear force of the riveted structure still mainly acts on the rivet, making the rivet a bus The main load-bearing parts of the car frame, the overall load-bearing capacity of the bus frame is weak, and the service life is short

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