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DND / Doorknob

DND
DND

The product use “no entry” identifying from road facilities.This design applies into doorknob which is installed in the meeting room. This doorknob with this identifying can avoid disturbance during meeting.The structure is easy and clear.First,making two gaps in the door.Then,installing doorknob inside the door and outside the door.Importantly,doorknob gets pulleys which take high friction.Finally,the doorknob can run with a fixed track.When the doorknob arrives the destination,we can see the “no entry”identifying.The doorknob is easy and convenient .It is suitable for meeting room.

University

Jiangnan University

Jiangnan University
Wuxi Jiangsu, China

Design

Jiangnan University

Jiangnan University
Wuxi Jiangsu, China

Fajia Wang Wenni Li Yishi Zhu Meng Gao