螺杆启闭机又称螺杆式启闭机，是一种用螺纹杆直接或通过导向滑块、连杆与闸门门叶相连接，螺杆上下移动以启闭闸门的机械。据悉，随着水利水电工程的广泛开展，用于水库灌区河道堤坝，水力电站等工程项目上的启闭机，闸门被大量采用。
Screw hoist, also known as screw hoist, is a kind of machine that uses screw to open and close gate directly or through guide slider and connecting rod, and screw moves up and down to open and close gate. It is reported that with the extensive development of water conservancy and Hydropower projects, the hoists and gates used in river embankments and hydropower stations in reservoir irrigation areas have been widely used.