Detachable mounting structure of exhaust pipe catalytic converter

Abstract

This invention discloses a catalytic converter exhaust pipe installation of removable structure for the exhaust pipe segmental, one section of which is connected with the engine, the other one with the muffler extinguishers, and they are fixed on the vehicle chassis. Segmental exhaust pipe on the adjacent side is fixed with catalytic converters used in the connector, one connecting level-hole with large-diameter pipe is put in a fixed link, catalytic converters installed in the casing at the height limit and within the hole the hole shoulder, another connector to the hole with step nut sets, the stage-hole path in space with another cut exhaust pipe, nut sets stage large diameter hole in a ring-sealed trap in the exhaust pipe , nut sets the stage-hole large-diameter casing installed in the thread and thread with nut sets of clamping ring withstood a catalytic converter will be sealed and catalytic converters in the positioning of the casing. It can make catalytic converters easily fixed in the exhaust pipe, and the demolition, the replacement is very convenient. It is good at sealing and looks nice.

Description

technical field [0001] The invention relates to an exhaust muffler structure of a motor vehicle, in particular to a detachable installation structure of an exhaust pipe catalytic converter. Background technique [0002] The function of the exhaust muffler of a motor vehicle is to discharge the exhaust gas of the engine into the atmosphere, reduce the noise and temperature of the exhaust gas at the same time, and eliminate the flame sparks in the exhaust gas. A good exhaust system can also improve the efficiency of intake and exhaust. Efficiency, increase engine power, reduce fuel consumption. [0003] Motor vehicle exhaust emissions have become one of the important factors affecting the environment, so various manufacturers have taken various measures to reduce motor vehicle exhaust emissions, such as installing catalytic converters in exhaust pipes can effectively reduce motor vehicle exhaust emissions. At present, there are mainly the following ways to connect the catalyt...

AI Technical Summary

Problems solved by technology

This method generally uses screws to fix the catalytic converter. Due to the small space in the hole of the exhaust pipe, it is difficult to install and fix the catalytic converter with screws, which affects the installation progress. It is loose and falls off in the exhaust pipe, making abnormal noise due to vibration

The exhaust pipe connection methods of this method are as follows: A. The two exhaust pipes are connected by bolts in the form of flanges, but when connecting the flanges, it is difficult to align the holes and there is a disadvantage of difficult assembly. , and the presence of a flange in the middle of the exhaust pipe will seriously affect the overall shape of the motorcycle; B. Use expansion pipes to connect, such as the method described in Chinese patent application 200520108076.2; use spring hooks to fix, such as Chinese patent 200520031371.2 The method described above; through openings on the wall of the exhaust pipe, such as the method described in Chinese patent 200520000588.7, etc., these methods make the structure of the exhaust pipe complex, poor in appearance, and poor in strength; C. using hoops fixed in a fixed way, such as the method described in Chinese patent application 200410096871.4, this method causes gaps around the exhaust pipe due to the clamping force of the hoop, resulting in air leakage from the exhaust pipe and affecting the normal operation of the exhaust system Work

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