Rubber tube pulley block arrangement structure of three-stage full-free portal frame of forklift

The invention discloses a rubber tube pulley block arrangement structure of a three-stage full-free portal frame of a forklift, and relates to the technical field of forklift production and manufacturing. Comprising a first pulley block fixing assembly, a second pulley block fixing assembly, a third pulley block fixing assembly, a first rubber pipe, a first transition assembly, a second rubber pipe, a third rubber pipe, a second transition assembly, a fourth rubber pipe, a fifth rubber pipe, a third transition assembly, a sixth rubber pipe and a fourth transition assembly. The first pulley block fixing assembly and the second pulley block fixing assembly are fixedly connected to the left side and the right side of an upper cross beam of the middle portal frame respectively, and the third pulley block fixing assembly is fixedly connected to the telescopic end of the front lifting oil cylinder. And the first rubber pipe, the first transition assembly, the second rubber pipe, the third rubber pipe, the second tr