今年76岁的刘宝胜生活在河北古城保定。1992年冬天,他家半年内接连丢了三辆自行车。邻居们的车子也经常丢,提起那些偷车贼,大家都恨得咬牙切齿。刘宝胜清楚,小偷之所以屡屡得手,是因为很多自行车锁防盗功能较弱,窃贼几秒钟内可以撬开车锁。自己干了多年钳工,如果能研制出更安全的锁具,岂不更好?1993年,刘宝胜提前退了休。他一连买了40多把车锁回家研究,邻居们也先后送来20 76-year-old Liu Baosheng lives in Baoding, Hebei ancient city. In the winter of 1992, his family lost three bicycles in succession within six months. Neighbors’ cars are often thrown away, mentioning those car thieves, we all hate teeth. Liu Baosheng clear, the reason why the thieves often succeeded, because many bicycle lock anti-theft function is weak, the thief can pry the car lock within seconds. For many years fitter himself, if we can develop a more secure lock, would not it be better? In 1993, Liu Baosheng retire early. He bought more than 40 car locks home study, the neighbors also sent 20