A traction bed with adjustable waist swing angle is proposed.Based on ergonomic principle,the overall structure and function of the traction bed are designed.By comparing the structural characteristics of different swing mechanisms,the structural design and analysis of the waist swing module are carried out,and the waist swing traction module with the swing guide bar mechanism as the core is designed.The whole three-dimensional modeling is carried out by SolidWorks,and the corresponding mathematical model is established for the swing mechanism,and the theoretical calculation and analysis is carried out with the help of MATLAB.
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