Cleaning rod and cleaning device for liquid outlet pipe of liquid propellant filling container

The invention relates to a cleaning rod for a liquid outlet pipe of a liquid propellant filling container, which belongs to the technical field of spacecraft engine cleaning. The cleaning rod comprises a rod body, wherein the end part of the rod body is provided with a fixed hole and an accommodating slot; the fixed hole is a through hole formed in the radial direction of the rod body; the accommodating slot is axially formed along the rod body and penetrates through the rod body; and the fixed hole passes through the accommodating slot. The invention further provides a cleaning device for theliquid outlet pipe of the liquid propellant filling container. The fixed hole and the accommodating slot are formed in the cleaning rod, and crossed screwed-up joint burr parts at the two ends of non-woven fabric are arranged in inner sunken parts of end parts of the rod body after the non-woven fabric is fixed by an iron wire for bundling, so that the problem that bumps such as welding points inthe liquid outlet tube ar