Mounting structure for air filter of motorcycle

Abstract

The invention discloses a mounting structure for an air filter of a motorcycle. The mounting structure comprises an air filter shell; positioning lugs for mounting are arranged at the two ends of theair filter shell; through holes allowing bolts to penetrate are formed in the positions, corresponding to air filter mounting holes of a motorcycle frame, of the positioning lugs; the lower end facesof the positioning lugs make contact with the motorcycle frame, and the upper end faces of the positioning lugs are fixedly connected with connecting mounting plates; and inner threads used for beingin bolted connection with the motorcycle frame are arranged in the positions, corresponding to the through holes, of the connecting mounting plates. The mounting structure replaces a traditional structure that nuts are adopted to be embedded into positioning lugs for bolt fastening of the air filter, the effect between the nuts and the air filter is changed into the effect between the connecting mounting plates and the air filter, the force arm of stopping torsion is greatly prolonged, and the situation that when torsion is overlarge, the stopping effect of the air filter on the nuts loses efficacy, and thus mounting and dismounting cannot be normally conducted is prevented. The mounting structure is simple in structure, easy and convenient to mount and dismount, and low in production cost.

Description

technical field [0001] The invention relates to an air filter, in particular to a motorcycle air filter installation structure. Background technique [0002] The air filter is a device to purify the air. The outside air enters the carburetor through the air filter, and then mixes with the oil to form oil and gas for the motorcycle engine. Its main function is to prevent dust and sand from entering the engine and ensure the normal operation of the engine. , Delay cylinder wear, so the air filter is an essential part of the motorcycle. [0003] Due to the characteristics of low production cost and light weight of plastic, plastic air filters are widely used in existing motorcycles, and the installation of plastic air filters and motorcycle frames is mainly through the threaded connection of bolts and nuts. The installation structure is: air The two ends of the filter housing are provided with positioning lugs for installation. The positioning lugs correspond to the position o...

AI Technical Summary

Problems solved by technology

The fixing method of the nut in this installation structure is to embed the nut directly into the through hole, and the surface of the nut is in contact with the through hole, and the stop torque is generated through the contact surface. When it is larger, the material in contact with the surface of the air filter and the nut is softened due to the load exceeding the bearing limit, and the stop effect cannot be achieved. The nut rotates with the bolt under the reaction force of the bolt, which further damages the air filter and makes the air filter The limit effect of the nut on the nut is invalid, resulting in a small tightening torque of the bolt or the bolt cannot be unscrewed normally, and finally the air filter cannot be installed or disassembled

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