A structure of adjusting a massage contact surface strength of a massage chair comprising:
- a base and a massager;
- wherein the base includes a frame which has a first fringe, a second fringe, a connection fringe connected with a front end of the first fringe and a front end of the second fringe, a rotary shaft rotatably connected with a rear end of the first fringe and a rear end of the second fringe, a first motor fixed on an outer wall of the frame and configured to drive the rotary shaft to rotate, wherein the rotary shaft has a rotation column, and the frame further includes a cap connected between the rear end of the first fringe and the rear end of the second fringe and configured to shield the rotation column, two first ropes connected on two sides of the connection fringe, and two second ropes connected on two sides of the rotation column, wherein the two first ropes and the two second ropes are a steel cable;
- wherein the massager includes a first rotary shaft and a second rotary shaft which are rotatably connected on a front end and a rear end of the massager, wherein the first rotary shaft includes two first rotatable wheels connected on two sides thereof, and a respective one first rotatable wheel has a first threaded gear formed thereon, the respective one first rope is rolled on the first threaded gear of the respective one first rotatable wheel, wherein the second rotary shaft includes two second rotatable wheels connected on two sides thereof, a respective one second rotatable wheel has a second threaded gear formed thereon, and the respective one second rope is rolled on the second threaded gear of the respective one second rotatable wheel;
- wherein the massager further includes a second motor configured to drive the first rotary shaft or the second rotary shaft to rotate, wherein a drive wheel is meshed with the respective one first rotatable wheel and the respective one second rotatable wheel so as to drive the respective one first rotatable wheel and the respective one second rotatable wheel to rotate in a same direction, hence the first threaded gear of the respective one first rotatable wheel is configured to roll the respective one first rope, and the second threaded gear of the respective one second rotatable wheel is configured to unroll the respective one second rope;
- alternatively, the first threaded gear of the respective one first rotatable wheel is configured to unroll the respective one first rope, and the second threaded gear of the respective one second rotatable wheel is configured to roll the respective one second rope, such that the massager moves forward and backward reciprocately along an inner wall of the frame, and the massager includes a massage element configured to massage a user sit on the base;
- wherein the first motor drives the rotary shaft to rotate so that the respective one second rope is rolled on the rotation column of the rotary shaft to shorten a length of a middle section of the respective one second rope, and two ends of the massager are pulled upward so as to extend the massage element out of the base, thus massaging the user;
- wherein the first motor drives the rotary shaft to rotate so that the respective one second rope is unrolled on the rotation column of the rotary shaft to lengthen the length of the middle section of the respective one second rope, and the two ends of the massager is pulled downward so as to retract the massage element in the base, thus not massaging the user.