Threshold beam reinforcing structure

A doorsill beam reinforcing structure belongs to the technical field of automobile sheet metal parts and comprises a plurality of energy absorption boxes which are integrally formed by extruding aluminum alloy and installed at intervals in the length direction of a doorsill inner plate, reinforcing rib structures are arranged in the energy absorption boxes, and the energy absorption boxes are connected through anti-collision pipes in a penetrating mode. The utility model has the beneficial effects that the automobile rear bumper is simple in structure, easy to process and manufacture, light in weight, beneficial to the light weight of the whole automobile and universal as a platform, and the energy absorption effect and the safety of side collision are improved. 一种门槛梁加强结构，属于汽车钣金件技术领域，该门槛梁加强结构，包括沿门槛内板的长度方向间隔安装的多个由铝合金挤压一体成型的吸能盒，所述吸能盒内设置有加强筋结构，多个吸能盒之间通过防撞管穿接相连，本实用新型的有益效果是，本实用新型结构简单，易于加工制造，重量轻，有益于整车轻量化，可作为平台通用，而且提高了吸能效果和侧面碰撞的安全性。