Connection of screw rod on seat used for physically treating cervical spondylosis and scapulohumeral periarthritis
A screw rod and human body technology, applied in physical therapy, passive exercise equipment, roller massage, etc., can solve the problems of inconvenience and unsatisfactory effect, and achieve the effect of convenient use and simple and reasonable structure
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[0015] Embodiments of the present invention are all made of stainless steel, iron, copper, aluminum, wood and high-quality plastic materials.
[0016] figure 2 In the shown embodiment, the upper end of the screw rod on the vertical rod behind the two pedestal seats is a hand-rotating disc 1, the hole 2 on the hand-rotating disc is connected with the upper end of the screw mandrel 3, and the bearing outer tube 4 on the screw mandrel , the outer thread at the upper end of the bearing jacket is connected with the inner thread of the outer tube 5, the upper end and the lower end of the screw rod are respectively provided with bearings, the upper end and the lower end of the bearing are respectively provided with outer threaded threads 6 and 7, the outer tube is arranged on the screw rod, and the upper end of the outer tube , the lower end internal rotation wire is connected 8 with the external rotation wire on the bearing sleeve overcoat 7, the internal rotation screw cap 9 is ar...
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