Energy absorption device for preventing whiplash injury

Abstract

The invention relates to the technical field of automobile safety, in particular to an energy absorption device for preventing whiplash injury, and the device is arranged on an automobile seat and comprises a main framework and a fixed frame, wherein the main framework is fixedly connected with the pelvis framework of a seat, and the fixed frame is fixedly connected with a sliding guide rail of the seat; the main framework comprises two longitudinal beams arranged in parallel and a cross beam for connecting the two longitudinal beams, the fixed frame comprises a plurality of friction clamping plates, the cross beam is arranged in the friction clamping plates in a penetrating manner, and the cross beam is connected with the friction clamping plates through a cut-off type connecting piece; and when the seat is subjected to an impact force, the main frame can move relative to the fixed frame, so that the cut-off type connecting piece is cut off, and the cross beam can slide along the friction clamp plate. The energy absorption device for preventing whiplash injury is arranged above the sliding guide rail below the pelvis of the automobile seat, so that the automobile seat can absorb energy and slide backwards in the rear collision process of an automobile, and whiplash injury to passengers is reduced.

Description

technical field [0001] The invention relates to the technical field of automobile safety, in particular to an energy-absorbing device for preventing whiplash injuries. Background technique [0002] With the continuous development of automobile technology and the continuous increase of automobile ownership, automobile collision accidents are also showing an upward trend. Any car impact can result in whiplash injuries to the human body, and the chances of such injuries during a rear impact are far greater than those from other types of car collisions. Whiplash injury refers to the following typical actions that occur to the occupants of the vehicle in rapid succession when the vehicle is hit from the rear: In the first step, the normally arched spine is injured due to the forward movement of the seat back relative to the human back. The forward thrust from the seat back is straightened, and the curved and straightened spine drives the head of the human body to rise vertically...

AI Technical Summary

Problems solved by technology

[0003] The prior art mainly adopts the following two methods to prevent the occupant from whipping damage during the rear collision of the car: one is to reduce the occupant's injury caused by the rear-end collision of the vehicle by reducing the hardness of the seat back, optimizing the stiffness of the headrest, and optimizing the strength of the headrest rod. Whiplash injury, but the protection effect of this method is not obvious, and the occupant will still be injured when a rear-end collision occurs; the second is to install a translational energy-absorbing mechanism under the seat, and when the car has a rear-end collision accident, the elastic part will be squeezed Energy absorption realizes the stable sliding of the seat to ensure that the neck of the occupant is not injured, but this method makes the structure of the car seat more complicated, the additional mass is larger, and the cost is high, which is not conducive to the lightweight, energy-saving and environmental protection of the car

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