Dust cover for front swing arm of minibus

Abstract

The invention discloses a dust cover for a front swing arm of a minibus, which is provided with a dust cover main body (1) with an accommodating cavity (7). The outer wall of the lower end of the dust cover main body (1) is provided with a ring-shaped groove (4). The upper end of the dust cover main body (1) is provided with a sealing port (2). The sealing port (2) is communicated with the accommodating cavity (7) of the dust cover main body (1). An inner hoop (3) is embedded inside the upper end of the dust cover main body (1). The inner hoop (3) is surrounded around the sealing port (2). According to the invention, a unique closed-looped inner hoop structure is adopted to fasten the sealing port, so that not only is the labor intensity of assembly reduced, but also the assembling efficiency is improved. Moreover, the dustproof effect can be ensured and foreign matter and dust are effectively prevented from entering a pin head of a ball pin.

Description

technical field [0001] The invention relates to a component of a minibus, in particular to a dust cover for a front swing arm of a minibus. Background technique [0002] McPherson suspension is one of the most widely used car front suspensions in the world today, consisting of coil springs, shock absorbers and triangular lower swing arms. In minibuses, the triangular lower swingarm is replaced by a front swingarm and thrust rods. The ball pin of the front swing arm is the key part of the front swing arm connecting the steering knuckle, and the dust cover is an important part to ensure the normal operation of the part. The dust cover is set on the ball pin shaft, and the inner wall of the sealing port of the dust cover is The upper and lower ends of the dust cover are respectively provided with an annular groove, and then two outer hoops with openings are used to clamp the two annular grooves to prevent dust from entering the interior of the dust cover. the goal of. Since ...

AI Technical Summary

Problems solved by technology

Since the outer hoop and the dust cover need to be fastened later, not only the assembly process is more (the two outer hoops need to be installed separately), the assembly efficiency is low, and the fastening force provided by the outer hoop is difficult to guarantee

In particular, the fastening force provided by the corresponding outer hoop outside the sealing port of the dust cover is not strong. At the same time, the inner wall of the sealing port is flat. After a long time of use, the sealing port will become loose and the dustproof effect will be reduced. Weakened, causing foreign matter, water and dust to enter the pin head, which will affect the rotation of the steering knuckle and cause the car to fail to turn. On the one hand, there is a safety hazard. On the other hand, it will accelerate the wear of the ball pin and increase maintenance and repair costs.

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