Vehicle steering shaft dust protector

Abstract

The invention relates to a steering shaft dustproof cover of an automobile steering system, comprising an upper cover and a lower cover; the middle of the upper cover and the lower cover is provided with a hole sleeved with a steering shaft sleeve; wherein, the upper cover is a rubber part and the lower cover is made of hard plastic; the lower part of the upper cover is provided with a connecting neck ring inserted into the lower cover; the upper edge of the connecting neck is uniformly provided with at least two buckles; correspondingly, at least two humps are arranged on the upper edge of the lower cover; furthermore, the upper cover is internally embedded with a vibration reduction soft pad ring which can further prevent the vibration and more effectively prevent the noise in a starting cabinet from entering the cab. The steering dustproof cover can ensure right position and convenient installation when the steering shaft dustproof cover and the steering device shell are installed; furthermore, the invention has good dustproof and sound insulation effect without the phenomena of position transformation and dropping, etc. in application process.

Description

technical field [0001] The invention relates to an automobile steering shaft, in particular to the installation relationship between the steering shaft and the floor of a vehicle body. Background technique [0002] The current steering system for automobiles generally adopts a form in which the steering gear (steering gear) is arranged in the engine compartment, and the steering transmission shaft (ie, the steering column) passes through the engine compartment and is connected to the steering wheel in the cockpit. In order to meet the requirements of internal NVH performance, it is generally necessary to install a steering shaft dust cover at the part where the steering shaft passes through the floor hole of the body to block the remaining gap between the steering column passing through the engine compartment and the cockpit, and to prevent the dust and muddy water raised from the bottom of the vehicle. Waiting to enter the cockpit, while preventing the noise in the engine c...

AI Technical Summary

Problems solved by technology

This structure has the following defects in use: first, the upper cover and the lower cover adopt the form of staggered locking teeth, which makes alignment difficult and easy to misalign; second, they are all made of hard plastic, and the mutual locking lacks elasticity. It is easy to fall off, and due to the 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 seal

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