Portable adjustable sampling bracket for sampling boiler dust

The utility model relates to a portable adjustable sampling support for boiler dust sampling, which comprises two supporting assemblies and a scale, each supporting assembly comprises a magnetic block, an angle adjuster, a supporting rod, a bracket and a sampling gun fixing clamping piece, one face of each magnetic block is fixedly installed with the corresponding angle adjuster, the other face ofeach magnetic block is attracted on the outer wall of a boiler, and each angle adjuster is connected with the lower end of the corresponding supporting rod. Wherein the upper end of the supporting rod is hinged with the bottom surface of the bracket, the bracket and the sampling gun fixing clamping piece form a hoop for surrounding the sampling gun, the bracket is arranged on the lower side, thesampling gun fixing clamping piece is arranged on the upper side, and the scale positioning rod is horizontally and fixedly arranged on the outer wall of the bracket and connected with the scale. Thesupporting assembly compris