Based on skateboards and hinge linkages, a simple multifunctional evacuation chair is designed, which can be used both on ground and down stairs.
科学工作者基于滑板和铰链连杆机构，设计了一种可同时在平地和楼梯上使用的简易多功能逃生椅。
The structure can solidify the connection of the glasses legs and the hinge, and has the advantages of simple manufacturing process, improved efficiency and reduction of production costs.
此结构使镜腿与铰链连接更为牢固，制作工序简便，效率提高，制作成本降低。
The furniture hinge has the advantages that the structure is simple and reasonable, the connection is reliable, the Angle is large when the furniture hinge is opened, and the rotation is flexible.
本实用新型具有结构简单合理、连接牢靠、打开时的角度比较大和转动灵活的特点。
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