A kind of worm screw chair lift,Back cushion rotates simultaneous wave and rubs pressure head massager,System includes: be pivoted a screw rod on a shell,One inner box portion sets power source and transmission device,Transmission device what screw position is equipped with a nut,Aforementioned nut top surface is equipped with bevel reduction gear set and transmission device interlocks,Connecting transmission outward by transmission device before inner box portion has two massage head groups,Massage head group includes being arranged two cantilevers on a wedged bottom disk to extend toward asymmetric outside,The top surface of two cantilevers sets at least one convex grain of massage,One turntable bottom side is set as backslash bottom surface,Turntable top surface must be made to form plane in group to wedged bottom disk,Turntable surface sets at least one convex ball of massage,So that power source drives transmission device rotation,So that inner box portion is able to lifting action,And two massage head groups generate rotary massage plus the person that rubs pressing massage of waving on four side of two sides.一種蝸桿升降椅、靠墊旋轉兼搖擺揉壓頭按摩器，係包含有：一外殼部上樞設一螺桿，一內盒部設動力源與傳動裝置，傳動裝置於螺桿位置設有一螺帽，前述螺帽頂面設有傘形齒輪組與傳動裝置連動，內盒部前面由傳動裝置往外連接傳動有兩按摩頭組，按摩頭組包括一斜底盤上套設兩懸臂往不對稱外側延伸，兩懸臂之頂面設至少一按摩凸粒，一轉盤底側設成反斜底面，組至斜底盤上得使轉盤頂面形成平面，轉盤面設至少一按摩凸球，使得動力源帶動傳動裝置轉動，使得內盒部得以升降動作，而兩按摩頭組產生旋轉按摩加上兩側四邊的搖擺揉壓按摩者。
