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In the family, as the interior door locks are relatively high, babies would be difficult to reach, especially round the lock, it would be hard to open. Therefore, we design a can using the power handle, lock, plastic abrasive material enough to slip, as long as the baby slightly rotate it, you can easily lock open.
ChongQing University
ChongQing City, China
ChongQing University
ChongQing City, China
Zong Yongsheng
Zhang Liwei
Tan Xiaoqun
Wu Zhiyuan