Universal rectangular pipe fastener

The utility model discloses a pipe fastener for interconnection between scaffold steel pipes or supporting frame steel pipes in the construction industry, and particularly relates to a universal rectangular pipe fastener. The universal rectangular pipe fastener comprises two fastener bodies independent from each other, each fastener body comprises an n-shaped press plate, a bottom plate and a fastening part used for fixing the corresponding n-shaped press plate to the corresponding bottom plate, and the bottom plates of the two fastener bodies are connected to each other in a hinged mode. The universal rectangular pipe fastener achieves the facts that a scaffold or a supporting frame is good in setting-up stability and convenient to set up in the construction industry. Stability of the scaffold or the supporting frame which is set up through the universal rectangular pipe fastener and rectangular pipes is undoubtedly better. Meanwhile, through the universal rectangular pipe fastener, the rectangular pipes can