Connecting pipe of automobile exhaust gas purification equipment

Abstract

The invention discloses a connecting pipe on an automobile tail gas purification device, which comprises a first connecting pipe group and a second connecting pipe group, the first connecting pipe group is composed of an outer pipe and a first inner pipe, and the second connecting pipe group is composed of an outer pipe and a second pipe. The second inner tube is formed, the outer end of the outer tube is formed with a first flange, the first flange is formed with a number of mounting holes, the outer wall of the outer tube is formed with a rectangular boss, the first inner tube and the second The two inner tubes are respectively plugged into the outer casing of the first connecting group and the outer casing of the second connecting group. One end of the first inner tube and the second inner tube are inserted and fixed with a number of sealing rings, and the sealing rings are pressed against the outer casing. On the inner wall of the first inner tube or the second inner tube adjacent to the outer wall of the sealing ring, there are ring-shaped first adjustment grooves and second adjustment grooves respectively, and the first adjustment groove or the second adjustment groove are inserted into the A fastening bolt is connected, and the fastening bolt is screwed on the boss of the outer casing. The invention facilitates the installation and connection between the purification processor and the exhaust pipe.

Description

Technical field: [0001] The invention relates to the technical field of exhaust gas purification equipment, and more specifically relates to a connecting pipe on an automobile exhaust gas purification equipment. Background technique: [0002] Automobile exhaust gas purification processor is the purification and emission equipment that must be installed on all automobiles and vehicles. The exhaust gas purification processor is connected to the exhaust pipe through the connecting pipe, and the existing connecting pipe is generally a corrugated pipe or hose. In order to enhance the sealing The joints of some of the corrugated pipes or hoses are formed with flanges, and the connection with the exhaust pipe or the purification processor is realized through the flanges, but because of the location of the installation holes, it is inconvenient to install, and Some need to twist the bellows or hose, which is easy to cause damage to the bellows or hose. Invention content: [0003]...

AI Technical Summary

Problems solved by technology

[0002] Automobile exhaust gas purification processor is the purification and emission equipment that must be installed on all automobiles and vehicles. The exhaust gas purification processor is connected to the exhaust pipe through the connecting pipe, and the existing connecting pipe is generally a corrugated pipe or hose. In order to enhance the sealing The joints of some of the corrugated pipes or hoses are formed with flanges, and the connection with the exhaust pipe or the purification processor is realized through the flanges, but because of the location of the installation holes, it is inconvenient to install, and Some need to twist the bellows or hose, which is easy to cause damage to the bellows or hose

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