Steering shaft dustproof cover of automobile steering system

Abstract

The invention relates to a steering shaft dustproof cover of an automobile steering system. The steering shaft dustproof cover comprises a dustproof cover cap, wherein holes which sleeve a steering shaft are formed in the middle of the upper end portion and the lower end portion of the dustproof cover cap respectively. The steering shaft dustproof cover is characterized in that the dustproof cover cap is formed by hard plastic; the lower end portion of the dustproof cover cap is provided with at least three holes; the steering shaft dustproof cover also comprises a rubber gasket; the hole which is formed in the lower end portion of the dustproof cover cap sleeves the rubber gasket; the edge of the rubber gasket is provided with at least three projections I; the projections are corresponding to and matched with the holes formed in the dustproof cover cap respectively. According to the steering shaft dustproof cover of the automobile steering system, the clamping connection is convenient, the alignment is easy, and accordingly the dustproof cover is not easy to move and fall off during usage and the dustproof and sound insulation effect is good.

Description

technical field [0001] The invention relates to the field of auto parts, in particular to a steering shaft dust cover of an automobile steering system. Background technique [0002] The current steering system for automobiles generally adopts the form of arranging the steering gear (steering gear) in the engine compartment, and passing through the engine compartment through the steering transmission shaft (steering column) to connect with the steering wheel in the cockpit. In order to meet the NVH performance requirements, it is generally necessary to install a steering shaft dust cover at the part where the steering shaft passes through the hole in the vehicle body floor to block the gap left by the steering column passing through the engine compartment and the cockpit, so as to prevent the dust and dust raised from the bottom of the vehicle. The muddy water enters the cockpit, and at the same time prevents the noise in the engine compartment from being transmitted into the...

AI Technical Summary

Problems solved by technology

This structure has the following disadvantages in use: first, the upper cover and the lower cover adopt the form of staggered locking teeth, which makes alignment difficult and easy to dislocate; second, they are all made of hard plastic, and the mutual locking lacks flexibility. , easy to fall off, and due to lack of elasticity, the cover body is in hard contact with the front floor hole of the vehicle body, which is prone to displacement and cannot achieve a good sealing effect

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