Steering column locking device and automobile

Abstract

The invention relates to a steering column locking device and an automobile. The device comprises a rotary mandrel, a return torsion spring, an adaptive position movable tooth and a fixed tooth. One end of the rotary mandrel is arranged on a steering column, the other end of the rotary mandrel extends in the direction away from the steering column, and the rotary mandrel is sleeved with the adaptive position movable tooth. The return torsion spring is arranged on the side, away from the steering column, of the adaptive position movable tooth, one end of the return torsion spring is fixed to the rotary mandrel, and the other end of the return torsion spring is arranged on the adaptive position movable tooth. The fixed tooth is fixed to the steering column and used for being matched with theadaptive position movable tooth, so that the device is in a locked state. The phenomenon that the steering column is warped upwards in a head-on collision can be effectively prevented, so that the steering column achieves a better protection effect on the human body.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a steering column locking device and an automobile. Background technique [0002] The steering column is one of the main components in the vehicle steering system. It is not only used to transmit the steering force input by the steering wheel, but also an important occupant protection component. In the frontal collision of the vehicle, the steering column can effectively absorb energy and The stable structural state determines the protective effect of the driver's airbag on the driver. Once the position or angle of the steering column cannot be maintained in a stable state, the position of the airbag will also change accordingly, which will not only affect the protective effect of the airbag and even affect the safety of the driver. cause injury to the driver. [0003] The stable state of the position or angle of the steering column needs to be realized by a reliable locking de...

AI Technical Summary

Problems solved by technology

[0002] The steering column is one of the main components in the vehicle steering system. It is not only used to transmit the steering force input by the steering wheel, but also an important occupant protection component. In the frontal collision of the vehicle, the steering column can effectively absorb energy and The stable structural state determines the protective effect of the driver's airbag on the driver. Once the position or angle of the steering column cannot be maintained in a stable state, the position of the airbag will also change accordingly, which will not only affect the protective effect of the airbag and even affect the safety of the driver. cause harm to the driver

[0003] The stable state of the position or angle of the steering column needs to be realized by a reliable locking device. Due to the small locking force of the locking device in the prior art, the steering column often appears upturned in the frontal collision of the vehicle. , the upturning of the steering column will cause the angle of the steering column to change, so that the steering column cannot stably perform collapse buffering and energy absorption

In addition, the upturn of the steering column will also cause the steering column guard to interfere with the surrounding area, hindering the collapse and energy absorption of the steering column

In some vehicle collisions, the upturn of the steering column may even increase the bending moment of the neck of the human body, causing damage to the neck of the human body

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