A buffer energy-absorbing anti-collision mechanism with both collision compatibility and passability

Abstract

The invention discloses a buffer energy-absorption anti-collision mechanism with both collision compatibility and passing ability. The buffer energy-absorption anti-collision mechanism comprises a #-shaped buffer energy-absorption frame and an auxiliary buffer energy-absorption air cylinder. The #-shaped buffer energy-absorption frame can perform buffer energy absorption through elastic deformation. The auxiliary buffer energy-absorption air cylinder can perform buffer energy absorption by compressing gases. The elastic deformation part of the #-shaped buffer energy-absorption frame is abutted against the auxiliary buffer energy-absorption air cylinder. A rake-shaped connecting rod mechanism which can be retracted and spread at the tail of a car is disposed on the #-shaped buffer energy-absorption frame, A fork-shaped connecting rod mechanism which can be retracted and spread at the tail of the car is disposed on the auxiliary buffer energy-absorption air cylinder. The buffer energy-absorption anti-collision mechanism has the advantages that buffer energy absorption is achieved by the elastic deformation of the #-shaped buffer energy-absorption frame, buffer energy absorption is further achieved by the gas compression of the auxiliary buffer energy-absorption air cylinder, buffer energy absorption effect is increased greatly, and lightweight design is achieved; the auxiliary buffer energy-absorption air cylinder can be abutted against the #-shaped buffer energy-absorption frame, and the collision resistance and stability of the #-shaped buffer energy-absorption frame are increased; the #-shaped buffer energy-absorption frame and the auxiliary buffer energy-absorption air cylinder are retracted at the tail of the car respectively through the rake-shaped connecting rod mechanism and the fork-shaped connecting rod mechanism, and the passing ability and cross-country ability of the car are increased.

Description

Technical field [0001] The invention relates to a buffering energy-absorbing and anti-collision mechanism, in particular to a buffering energy-absorbing and anti-collision mechanism with both collision compatibility and passability. Background technique [0002] At present, my country's automobile industry is booming. There are more studies on frontal, side, and offset collisions of automobiles, but fewer studies on rear-end collisions of cars, especially small cars and large trucks. [0003] Once a car rears a large truck, due to structural differences, if no protective measures are installed at the rear of the large truck, it is easy to cause the car to directly penetrate into the bottom of the large truck, not only can it not take advantage of the long energy absorption area at the front of the car Moreover, the rear-end collision will directly damage the passenger compartment of the car, causing serious personal injury. [0004] Although the bottom of many large trucks is equipp...

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Problems solved by technology

[0003] Once a small car rear-ends a large truck, due to structural differences, if no protective measures are installed at the rear of the large truck, it is easy to cause the small car to get directly into the bottom of the large truck, which not only cannot make full use of the long energy-absorbing area at the front of the car. advantage, and the rear-end collision will also cause the passenger compartment of the car to be directly damaged, causing serious personal injury

[0004] Although the bottoms of many large trucks are equipped with anti-collision and anti-car bottom baffles, their structural design is not reasonable enough to effectively take into account the two aspects of collision compatibility and large truck passability

A baffle with no change in hardness and a single material can easily cause the initial stress peak of the car collision and the acceleration of the B-pillar to be too large, resulting in excessive damage to the car body and serious injuries to the occupants in low-speed collisions and general rear-end collisions

Moreover, the existing baffles installed at the tail of large trucks lack effective adjustment and storage devices, which may easily affect the passability of large trucks

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