弹子结构挂锁的增配钥匙开锁痕迹的分析

Analysis of Additional Key Unlocking Marks of Billiard Structure Padlock

目的探明用增配钥匙开锁在弹子结构挂锁中产生痕迹。方法设置实验组和对照组,对弹子结构挂锁的原配钥匙与增配钥匙形成的开锁痕迹进行比对。结果增配钥匙在圆头弹子上形成的痕迹与原配钥匙在圆头弹子上形成的擦划痕迹存在明显差异,呈数条反映程度不一的线条擦划痕。结论使用增配钥匙开锁,在圆头弹子头部、钥匙槽内壁上等,会留下新鲜的痕迹。

Objective:to find out the trace in the padlock of the billiard structure by using the additional key to unlock the padlock.Methods:the experimental group and the control group were set up to compare the unlocking marks formed by the original key and the additional key of the billiard structure padlock.Results:there were significant differences between the marks formed on the round-head marbles and the scratches formed by the original keys on the round-head marbles,showing several lines with different degrees of reflection.Conclusion:using the additional key to open the lock,on the head of the round head marble,the inner wall of the key slot,etc.,will leave fresh marks.