The hole sealing equipment consists of three different-purpose machines: a hole cutter, a plug setter, and a lower plug setter. They share a common frame, which is made up of components such as a sector gate valve, upper and lower connectors, left and right positioning fixtures, temporary bypass ports, vent valves, and pressure gauges. The frame's function is to provide a base for the hole cutter, plug setter, and lower plug setter, and it uses its left and right fixing devices to connect and securely clamp the running PE pipeline. The lower connector is connected and sealed to the PE piping components; the upper connector connects to the hole cutter, plug setter, and lower plug setter separately and is sealed; the sector gate valve is an essential device for opening and closing during the equipment spring change of the hole sealing process. The frame material is made of aluminum alloy, treated with anodizing, featuring high surface hardness, corrosion resistance, wear resistance, and light weight.