Lamp box section bar convenient to assemble

The utility model discloses a lamp box section bar convenient to assemble, which comprises a first section bar and a second section bar, four corners of the first section bar and four corners of the second section bar are fixedly connected with fixing plates, the outer sides of the fixing plates are clamped with clamping blocks, and the clamping blocks are fixedly connected with the first section bar and the second section bar. Compared with the prior art, through the arrangement of the first sectional material, the second sectional material, the fixing plate, the clamping block, the connecting shell, the limiting block, the fixing plate, the spring, the clamping head and the connecting shaft; the first sectional material and the second sectional material can be mutually fixed through mutual matching of the clamping block and the fixing plate, meanwhile, it can be guaranteed that the first sectional material and the second sectional material do not have the fixing deviation phenomenon, assembling by workers i