GIS air chamber non-rising-stem valve limiting device and installing method thereof

The invention discloses a GIS air chamber non-rising-stem valve limiting device and an installing method thereof, and relates to the technical field of GIS inflation valve equipment safety. A GIS airchamber non-rising-stem brake valve is controlled by a valve stem to be turned on and turned off, when the GIS non-rising-stem brake valve is turned on and turned off, a valve stem steering wheel anda non-rising-stem valve rod are connected and not moved relatively, the size of the non-rising-stem brake valve is small, after the valve rod is rotated, the state of the valve is hard to judge, and state changes of the valve are hard to judge. The device comprises a hoop and a limiting piece, the hook is clamped and fixed to a valve rod sleeve of the valve, one end of the limiting piece sleeves the non-rising-stem valve rod below the valve stem of the valve, and the other end of the limiting piece is fixedly connected with the hoop. The hoop and the valve rod sleeve are fixedly connected, thelimiting piece sleeves the