Aiming at the motion request of spine and joints of these people who always sit in the office and according to the theory of ergonomics. a swing-style office lounge chair was designed. According to the testing standard of ANSI / BIFMA. static structure analysis and transient structure analysis was done under the environment of ANSYS Workbench. https://allfixelectricales.shop/product-category/vacuum-crevice-nozzle/