１９２６年５月６日以孙美瑶为首的山东建国自治军，在上海张锦湖、张聘卿等同盟会元老指示下，为反帝反军阀，被迫在山东临城河沟山，劫拦了去黄河官家坝堤口参加落成典礼的中外记者和外国旅行者的火车，将这二百余人绑架到抱犊崮山麓的巢云观。这便是震惊中外的“临城劫车案 May 6, 1926 As the anti-imperialist and anti-warlord was instructed by the veterans of the alliance, including Zhang Kumho and Zhang Hsing-ching in Shanghai, the founding of the Chinese People’s Liberation Army in Shandong, led by Sun Mei-yao, was forced to go to the Linchenghe River in Shandong Province and robbed Huangguan officials Dam embankment to attend the inauguration ceremony of foreign reporters and foreign journalists train, these two hundred people were kidnapped to hold the calf foothills nest cloud view. This is a shocking Chinese and foreign "Lincheng car case