Novel grass trimming head free of disassembly and assembly line

The utility model relates to the technical field of grass trimmer equipment, and discloses a novel grass trimmer head free of a disassembly and assembly line, which comprises a grass trimmer head seat, a grass trimmer head cover, a rope winding rotating shaft, a grass trimmer rope and a return spring, the rope winding rotating shaft comprises a screwing shaft, and a first rope winding groove and asecond rope winding groove which are formed in one end of the screwing shaft; the grass trimming head seat is sleeved on the screwing shaft; a rope penetrating channel which is perpendicular to and penetrates through the axis of the rope winding rotating shaft is arranged between the first rope winding groove and the second rope winding groove. The two ends of the rope penetrating channel are each provided with a rope winding opening. The opening direction of one rope winding opening is a first rope winding groove; when the grass trimmer is installed, the grass trimming rope only needs to penetrate into the rope pene