金属膨胀联接件结构设计郑道德（浙江温岭家用水泵厂）金属膨胀螺丝俗称胀管螺丝，被广泛应用于机械、建筑、通讯等领域，是家庭装饰、工矿企业设备安装建筑、设施及邮电通讯等不可缺少的紧固联接件。目前，普遍采用图Ｉ结构，其抗振较差，在振动大的场合，易引起联接松动... Metal expansion joint structure design Cheng Daode (Zhejiang Wenling domestic water pump plant) commonly known as metal expansion screw expansion screw, is widely used in machinery, construction, communications and other fields, is home decoration, industrial and mining equipment installation of buildings, facilities and postal communications Indispensable fastening fasteners. At present, I generally use the structure, its anti-vibration worse, in the case of large vibration, easy to cause loose coupling ...