Frame longitudinal member structure

The utility model discloses a frame longitudinal member structure, plate body and the first section of bending, the second section of bending, the third section of bending are made by a material, do not have the clearance between plate body and the first section of bending, the second section of bending, the third section of bending, and furthest's assurance vehicle frame strength and rigidity realize the lightweight of product part, avoid respectively the section of bending deformation failure, respectively through being connected rivet connection together between the two third sections of bending and the plate body, make like this connect between third section of bending and the plate body firm, improvement holistic intensity of plate body and rigidity. 本实用新型公开了种车架纵梁结构，板体和第折弯段、第二折弯段、第三折弯段是由块材料制成，板体和第折弯段、第二折弯段、第三折弯段之间不存在间隙，最大限度的保证车架强度和刚度，实现产品零件轻量化，避免各折弯段折弯变形失效；两第三折弯段与板体之间分别通过连接铆钉连接在起，这样使第三折弯段和板体之间连接稳固，提高板体整体的强度和刚度。