利用连杆机构，设计了一种五官科治疗椅的升降装置。并在CATIA的运动机构模块中，进行机构速度和加速度分析，从而验证该机构的实际运行状况。得出有效的设计方案，研制成功样机。%Design otolaryngology chair’s up-down assemble by applying link mechanism. And analysing the speed and accelerate of mechanism in CATIA’s motion mechanism module to verify its actural running status. Draw the effective design, make the successful prototype.
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