Combined anti-collision beam

Abstract

The invention relates to a combined anti-collision beam comprising an inner plate and an outer plate which are buckled and which are in strip shapes. A boss is formed at the center by projecting, two ends of the boss extend along the length directions of the inner plate and the outer plate, and a plurality of arcuate projections are formed on the boss of the outer plate. The tops of the arcuate projections are arc-shaped, the bottoms of the arcuate projections are connected with the outer plate. Arcuate projection bodies of the arcuate projections span two sides of the boss of the outer plate or are arranged on one side of the boss of the outer plate. Since the arcuate projections are arranged on the outer plate and are cling to the side wall of the boss of the outer plate, strength of the boss of the outer plate is enhanced greatly, when a vehicle door is collided, the arcuate projections are crumpled and deformed, and capacities of buffering and absorbing energy are enhanced; the arcuate projections adopt structure of flat bottoms and arc tops, so that the arcuate projections are small in size and occupied space, and are adaptable to narrow space on the door.

Description

technical field [0001] The invention relates to an automobile body structure, in particular to a combined anti-collision beam. Background technique [0002] The anti-collision beams of general automobile doors are mostly tubular anti-collision beams or Y-shaped anti-collision beams. What the tubular anti-collision beams adopted is a seamless steel pipe or welded steel pipe. "Structure" (publication number CN101021135A) shows the structure, which is provided with an anti-collision beam on the car door of the car, with an anti-collision beam main rod on the anti-collision beam, and an anti-collision beam strut on the anti-collision beam main rod. One end of the anti-collision beam strut is tightly connected with the shaft of the anti-collision beam main pole, and the anti-collision beam main pole and the anti-collision beam strut form a "Y"-shaped structure. In the actual side collision process, all kinds of anti-collision beams can absorb energy and prevent the collision ene...

AI Technical Summary

Problems solved by technology

However, the current protection concept of the anti-collision beam is to consume the collision energy through its own high-strength "head-to-head". Increasing the material thickness of the anti-collision beam to increase the strength of the anti-collision beam is not conducive to the lightweight of the vehicle; and increasing the strength of the anti-collision beam by changing the material of the anti-collision beam may increase the cost of the anti-collision beam

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