Novel collision offset multistage buffering energy-absorption anti-collision beam

Abstract

The invention discloses a novel collision steering multistage energy absorption anti-collision beam. The novel collision steering multistage energy absorption anti-collision beam comprises a main driving side anti-collision beam combination, an auxiliary driving side anti-collision beam combination, a connecting spring, a three-section type buffer support, a fixed hinge support, a supporting plate, a supporting connecting rod, a buffer spring, a sleeve, a supporting cross beam, a reset spring and a supporting longitudinal beam. The anti-collision beam combination is divided into a first anti-collision beam and a second anti-collision beam, and the multi-buffering anti-seismic effect can be achieved through the three-level buffering energy absorption structure of the anti-collision beam combination, the three-section type buffer support and the buffer spring; during offset collision, the design system can utilize external collision force to generate force which is perpendicular to the collision direction and horizontally faces the non-collision side to the vehicle body, so that the vehicle head moves towards the non-collision side, head-on collision is relieved to reduce the damagedegree of the vehicle body, and the anti-collision beam combination is reset under the action of the reset spring after collision to prevent secondary collision. According to the design, the absorption of the anti-collision beam system to automobile collision impact energy is improved, the damage of external collision force to an automobile body is reduced, the collision energy absorption rate isimproved, and particularly, the safety level of offset collision of the automobile is improved.

Description

technical field [0001] The invention relates to the field of mechanical design, in particular to a novel collision offset multi-stage buffer energy-absorbing anti-collision beam. Background technique [0002] Automobile crash safety is one of the most concerned issues for car occupants. In the event of a collision, the front anti-collision beam can absorb and transmit energy, reduce the damage to the passenger compartment and ensure the personal safety of passengers. Therefore, the design of anti-collision beams has always attracted much attention in the field of automobile manufacturing. [0003] In the existing front anti-collision beam technology of automobiles, the combination of the anti-collision beam body and the energy-absorbing box is generally used, and there is only one protective measure. In the general impact process, although this type of anti-collision beam can absorb part of the impact energy , but in 40% and below offset impacts, because the impact positio...

AI Technical Summary

Problems solved by technology

[0003] In the existing front anti-collision beam technology of automobiles, the combination of the anti-collision beam body and the energy-absorbing box is generally used, and there is only one protective measure. In the general impact process, although this type of anti-collision beam can absorb part of the impact energy , but in 40% and below offset impacts, because the impact position is too far to the side of the front of the car, this area has exceeded the protection range of the front longitudinal beam, and the impact is mainly borne by the frame near the front fender, Judging from the results of conventional crash tests, the structural strength of most vehicles is far from being able to withstand impacts at speeds exceeding 64km / h

Moreover, in a frontal offset collision, the car body longitudinal beams designed in the prior art cannot provide proper protection, and the huge frontal impact causes the car body to invade the passenger compartment, threatening the safety of the occupants in the car

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