Massage chair back

Abstract

The invention discloses a massage chair back which comprises a support, a machine core, a rotating lead screw and a fourth motor. Guide rail grooves are arranged on the two sides of the support. The two sides of the machine core are connected with first sliding blocks. The first sliding blocks can slide up and down along the guide rail grooves. A nut is arranged on the machine core. A thread of the nut is matched with a thread of the rotating lead screw. The upper and lower ends of the rotating lead screw are in rotating connection with the upper and lower ends of the support. One end of the rotating lead screw is connected with a belt wheel. The belt wheel is connected with the fourth motor through a belt. The machine core comprises a first motor, a second motor, a third motor, a massage arm, a first rotating shaft, a connecting device and a pushing device. The first rotating shaft is connected with the first motor. The first rotating shaft is sleeved with the massage arm through a first eccentric bearing. One end of the connecting device is connected with the second motor, and the other end of the connecting device is connected with the massage arm. The third motor is connected with the second motor through the pushing device. The pushing device pushes the second motor to move up and down. The massage chair back has the advantages that multidirectional movement can be achieved, and the massage comfort is improved.

Description

technical field [0001] The invention belongs to the technical field of health care equipment, in particular to a massage chair back. Background technique [0002] As people pay more and more attention to health, more and more health care equipment such as massage sticks, massage chairs, massage machines, and therapeutic instruments have entered ordinary families. Get a massage. At present, existing fitness massagers in the domestic market, especially massage chairs, lack humanized structural design, and the displacement of its massage components is generally fixed, and cannot slide up and down to massage the back of the human body. The needs are different, and the massage needs of different parts are also different. The massage device cannot move up and down, which obviously cannot meet people's needs, and brings great inconvenience to users. At the same time, most of the ordinary massage parts are ordinary rotating parts, and the massage effect is poor. . Contents of th...

AI Technical Summary

Problems solved by technology

At present, existing fitness massagers in the domestic market, especially massage chairs, lack humanized structural design, and the displacement of its massage components is generally fixed, and cannot slide up and down to massage the back of the human body. The needs are different, and the massage needs of different parts are also different. The massage device cannot move up and down, which obviously cannot meet people's needs, and brings great inconvenience to users. At the same time, most of the ordinary massage parts are ordinary rotating parts, and the massage effect is poor.

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