Integral single-frame two-way headrest with U-shaped single rod

An integral single-frame two-way headrest with a U-shaped single rod, comprising a U-shaped rod, an integral frame and a cover, wherein the integral frame is externally covered with the cover, the integral frame is hollow inside, an opening is arranged at a lower end of the integral frame, and an upper portion of the U-shaped rod is inserted into the inner frame from the opening, a plurality of positioning grooves is arranged on right side of one of two downwardly extending ends of the U-shaped rod, a rod guide sleeve sleeved on both ends of the U-shaped rod is mounted at both ends of the opening, an outer side of the integral frame is mounted with an unlocking steel wire corresponding to the positioning grooves, an unlocking lever connected with the unlocking steel wire and being laterally movable is mounted in a hollow portion of the integral frame, a button seat is mounted on a lower left side of the integral frame at a position near a left end of the unlocking lever, an unlocking button abutting against the left end of the unlocking lever is mounted in the button seat, the left end of the unlocking lever is bent downward to form a contact end, a steel wire fixing protrusion is disposed at a position of a front side of the integral frame where the unlocking steel wire is mounted, the steel wire fixing protrusion has a semicircular convex structure, a right side of the steel wire fixing protrusion extends upward to form a steel wire positioning extension matching with a vertical portion of the unlocking steel wire, a steel wire positioning groove is disposed at an upper end of the steel wire positioning extension, a lower end of the unlocking steel wire is wound around an outer ring of the steel wire fixing protrusion, and an upper end of the unlocking steel wire is engaged with the steel wire positioning groove.