Two-stage bumper body energy-absorbing bumper

Abstract

The invention discloses a two-stage bumper body energy-absorbing bumper comprising a first stage bumper body and a second bumper body which are fixedly connected through a bolt; a buffer slot is installed between the first stage bumper body and the second stage bumper body; the buffer slot is provided with an unilateral movement sleeve, a large air spring and a small air spring. The two-stage bumper body energy-absorbing bumper is compact and has simple structure and reasonable design, easy assembly, reliable connection, and can effectively mitigate and absorb the impact pressure from the outside; and by means of the unilateral movement sleeve, secondary bump problem occurs during sudden stop can be effectively prevented; the air bag in the second stage bumper body can play a role of buffer and protection so that failure due to first stage bumper damage caused by excessive impact force is prevented and therefore the impact force is reduced to the smallest; personal property safety is effectively protected, the driving security is greatly increased and the bumper is easy to use and promoted.

Description

technical field [0001] The invention relates to the technical field of automobile body accessories, in particular to a double-stage energy-absorbing bumper. Background technique [0002] The car bumper is a safety device that absorbs and slows down the impact of the outside world and protects the front and rear of the car body. Most of the existing car bumpers are rigidly connected with the car, and are easily damaged when a collision occurs. Therefore, the impact resistance of the car bumper is relatively low, and it is difficult to minimize the force of the collision; The problem is that by strengthening the strength of the bumper itself, the vehicle damage is minimized during the collision, but after the collision, the sudden stop of the vehicle is likely to cause a secondary collision, making it difficult to guarantee the safety of people and property in the car . In addition, because the bumper is mainly rigidly connected to the chassis, it can absorb a certain amount...

AI Technical Summary

Problems solved by technology

Most of the existing car bumpers are rigidly connected with the car, and are easily damaged when a collision occurs. Therefore, the impact resistance of the car bumper is relatively low, and it is difficult to minimize the force of the collision; The problem is that by strengthening the strength of the bumper itself, the vehicle damage is minimized during the collision, but after the collision, the sudden stop of the vehicle is likely to cause a secondary collision, making it difficult to guarantee the safety of people and property in the car

In addition, because the bumper is mainly rigidly connected to the chassis, it can absorb a certain amount of impact energy in the event of a collision, but most of the impact energy is transmitted to the body, which can easily cause damage to the body and casualties.

[0003] Therefore, there are still many limitations in the automobile bumper at this stage.

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