This creation is related to a kind of massager field, the structure of espespecially a kind of adjustable massage head distance. Including lower cover plate, upper cover plate, track plates, the first pedestal, the second pedestal, regulating device and driving device, its characteristic is in what: the regulating device includes worm gear, the first screw rod, the second screw rod, third screw rod, the 4th screw rod, central axis, the first rack gear and the second rack gear, first screw rod is linked in sequence by central axis and the second screw rod, third screw rod, the 4th screw rod, the worm gear is engaged with the second screw rod and third screw rod, first rack gear engages the first screw rod, and second rack gear engages the 4th screw rod. This creation carries out the width adjusting of massage head using Worm Wheel System, and structure is simple, easy to operate, and meets the demand of people.本創作涉及一種按摩器領域，尤指一種可調節按摩頭距離的結構。包括下蓋板、上蓋板、軌道板、第一基座、第二基座、調節裝置及驅動裝置，其特徵在於：所述調節裝置包括蝸輪、第一螺桿、第二螺桿、第三螺桿、第四螺桿、中心軸、第一齒條及第二齒條，所述的第一螺桿通過中心軸與第二螺桿、第三螺桿、第四螺桿順序連接，所述的蝸輪與第二螺桿及第三螺桿嚙合，所述的第一齒條嚙合第一螺桿，所述的第二齒條嚙合第四螺桿。本創作利用蝸輪蝸桿傳動進行按摩頭的寬度調節，結構簡單，操作方便，而且符合人們的需求。
