Pan-tilt, pan-tilt assembly and photographing support frame

The utility model relates to a cradle head, a cradle head assembly and a photography support frame, the cradle head comprises a cradle head seat and an adjusting assembly, the cradle head seat is provided with a mounting groove, and the mounting groove is used for mounting a universal head; the adjusting assembly comprises a clamping hoop, a pulling buckle and a rotary knob, the clamping hoop comprises a left clamping block and a right clamping block, the left clamping block and the right clamping block define a clamping space, the clamping hoop enables the universal head to be connected to the clamping space in a sleeving mode to limit rotation of the universal head, the pulling buckle can be pulled to relieve the limitation that the clamping space is expanded, and the rotary knob can be rotated to relieve the limitation that the clamping space is expanded; and when the limitation of expanding the clamping space is relieved, the rotating damping of the universal head in the mounting groove is reduced. Accord