Novel assembly structure of air outlet pipe of automotive air filter

Abstract

The invention provides an assembly structure of an air outlet pipe of an automotive air filter. The assembly structure comprises an air filter body and the air outlet pipe, wherein a mounting hole isformed in the air filter body, the air outlet pipe is inserted into the mounting hole, the outer side pipe wall of the air outlet pipe is provided with a rib blocking part and a back off positioning part, a containing groove is formed between the rib blocking part and the back off positioning part, and the width of the bottom of the containing groove is equal to the wall thickness of the air filter body at the position; the upper part of one side, close to the side wall of the air filter body, of the back off positioning portion is inclined outwards, so that the width of the upper part of thecontaining groove is smaller than the wall thickness of the air filter body, the air outlet pipe is arranged in the side wall of the air filter body and then clamped into the containing groove, so that the redundant interference fit on the upper part of the back off positioning part is clamped on the inner side wall of the air filter body, the rib blocking part is located outside the air filter body, and the air filter body located on the outer side of the rib blocking portion is provided with an upward protruding glue coating blocking rib. The novel assembly structure is reliable in structureand good in air tightness.

Description

technical field [0001] The invention relates to a vehicle air filter, in particular to a new assembly structure of an air outlet pipe of the vehicle air filter. Background technique [0002] At present, the air filter is mainly composed of air intake pipe, air filter body, filter element and air outlet pipe and other components. The air outlet pipe is usually vulcanized with rubber materials such as NBR+PVC, and the air filter body is usually injection molded with modified polypropylene plastic. The assembly and fixation between the air outlet pipe and the air filter body is mainly fixed by the cooperation between the air outlet pipe rib and the wall of the air filter body. Usually, in order to ensure the tightness between the air outlet pipe and the air filter body, the air outlet pipe rib and the air filter The matching gap between the bodies is designed to be 0, that is, transition fit. Most of the existing treatments are to open mounting holes on the surface of the air ...

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the present invention aims to provide an assembly structure for the air outlet pipe of the vehicle air filter. By adding glue on the air filter body and improving the structure of the air outlet pipe retaining rib, it can not only effectively solve the problem of glue overflow and glue failure. Controlled problems, and can effectively ensure the glue thickness between the air outlet pipe and the air filter body, reducing costs while ensuring the sealing performance between the air outlet pipe and the air filter body

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