Double-ferrule connecting assembly

The invention relates to the field of pipe connectors, and discloses a double-ferrule connecting assembly. The double-ferrule connecting assembly comprises a body, a front ferrule, a back ferrule anda nut. During pipe connecting, the bearing surface of the back ferrule can be tightly propped against the back end surface of the front ferrule, and the middle of the front ferrule is expanded outwards in the radial direction into an arc shape, a bow shape or an arch shape capable of accumulating the elastic potential energy. The double-ferrule connecting assembly is used for being connected witha sealed connecting pipe and has the high anti-vibration performance. 本发明涉及管道连接件领域，公开了双卡套连接组件，该双卡套连接组件包括本体、前卡套、后卡套和螺母。连接管子时，后卡套承压面能紧紧抵顶在前卡套后端面上、且前卡套中部径向向外膨胀成能蓄积弹性势能的弧形或弓形或拱形。本发明用于连接密封连接管子，具有优异的抗振动性能。