Emergency opening assembly, emergency opening device and gas insulated switchgear

The utility model provides an emergency opening assembly, an emergency opening device and a gas insulated switchgear, the emergency opening assembly comprises a push rod and a button, and the push rod is in threaded connection with the button; the ejector rod is provided with at least two grooves; and/or at least two grooves are located in the middle of the ejector rod in the extending direction of the ejector rod; and/or at least two grooves are arranged at intervals along the circumferential direction of the ejector rod. The emergency opening assembly solves the problem that the push rod is inconvenient to install in the prior art. 本实用新型提供了一种紧急分闸组件、紧急分闸装置及充气柜，紧急分闸组件包括顶杆和按钮，顶杆与按钮螺纹连接；顶杆设置有至少两个凹槽；和/或，沿顶杆的延伸方向，至少两个凹槽位于顶杆的中部；和/或，至少两个凹槽沿顶杆的周向间隔布置。本实用新型的紧急分闸组件解决了现有技术中的顶杆不便于安装的问题。