The combined concave swing seat frame mechanism comprises a base, a seat and a first electric push rod, the seat comprises a sitting and leaning frame and a backrest frame, a sliding frame is arranged on the base, and the left side and the right side of the sliding frame are each provided with at least two first hinge shafts; a swing arm capable of swinging relative to the sliding frame is arranged on each first hinge shaft, the bottom of each swing arm is hinged to the sitting and leaning frame, the sitting and leaning frame is hung on the sliding frame through the swing arms, a swing arm driving
assembly is further arranged on the sliding frame, the first electric push rod is hinged to the base, and the output end of the first electric push rod acts on the sliding frame. On the basis of the existing back-and-forth sliding and back rising and falling functions, the electric swing function technology is upgraded and added, the product configuration function is improved, more consumption requirements are met, the foot bath tub is suitable for more types of foot bath tubs and use places, swing in the mode is more stable, the action gives people a
hypnotic feeling, people are promoted to have a rest and relax, and the user experience is improved. And
anxiety and nervousness can be relieved.