Decorative tail pipe for automobile exhaust pipe

Abstract

The invention discloses a decorative tail pipe for an automobile exhaust pipe. The decorative tail pipe comprises an inner pipe and an outer sleeve, one end of the inner pipe is provided with a clamping part, the periphery of the clamping part is provided with a plurality of spring clamping pieces, the shape of the inner wall of the outer sleeve is matched with the inner pipe, one end of the outer sleeve is provided with an edge folding part which is bent towards the inside of an opening, and a clamping groove is formed between the edge folding part and the inner wall of the outer sleeve. One end of the clamping part of the inner pipe can be inserted into the outer sleeve from the opening at one end of the outer sleeve far away from the edge folding part, so that the clamping part is located in the clamping groove and fixedly clamped to the clamping groove through the spring clamping pieces. The decorative tail pipe for the automobile exhaust pipe is simple in process and rational in structural design. By arranging the spring clamping pieces, the inner pipe is fixedly clamped to the outer sleeve, the visual surface of the tail pipe is free of weld joint, and the mechanical strength of the tail pipe is stable. Due to the spring clamping pieces, the inner pipe is in close fit with the outer sleeve, and abnormal sounds generated between the inner pipe and the outer sleeve due to vibration in vehicle running can be effectively avoided.

Description

technical field [0001] The invention relates to the technical field of automobile exhaust, in particular to a decorative tailpipe of an automobile exhaust pipe. Background technique [0002] The function of the tail pipe of the exhaust system is to guide the exhaust gas produced by the engine into the atmosphere. According to the structure, it can be divided into single-layer and double-layer structure, and the single-layer tailpipe is not beautiful enough. The double-layer tail pipe can not only export the exhaust gas, but also provide a beautiful shape for the whole vehicle. [0003] At present, there are mainly three ways to connect the outlet ends of the inner and outer layers of the decorative tailpipe of automobiles: the first one, the way that the inner and outer layers do not touch, this structure is not easy to ensure uniformity due to the surrounding gaps, and the appearance is not beautiful; the second one, the inner layer is flared, Full welding with the outer ...

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Problems solved by technology

[0003] At present, there are mainly three ways to connect the outlet ends of the inner and outer layers of the decorative tailpipe of automobiles: the first one, the way that the inner and outer layers do not touch, this structure is not easy to ensure uniformity due to the surrounding gaps, and the appearance is not beautiful; the second one, the inner layer is flared, Full welding with the outer layer has the disadvantages of time-consuming welding, grinding and polishing, and high cost. At the same time, it is only suitable for cylindrical tailpipes that are easy to fit; the third type is that the inner layer is inserted into the beading of the outer layer, and the insertion part is partially welded 2- Section 4, due to the welding section, the decorative tailpipe has unsightly appearance defects. If it is not welded, due to the influence of the dimensional accuracy of the sheet metal parts, the inner and outer layers cannot be matched precisely, which is prone to vibration and abnormal noise. The customer is not satisfied with the structural design

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