The invention discloses a foldable universal warning flagpole for an
aviation oil pipeline refueling
truck, which belongs to the technical field of warning flags for refueling trucks and comprises a support, a support rod, a first elastic part, a fixing rod, a
sound production component, an adjusting component and a plurality of warning flags. A fixing rod is installed at the other end of the supporting rod through a first elastic piece, a
sound production assembly is installed at the bottom of the fixing rod, an adjusting
assembly is installed on the fixing rod, and a plurality of warning flags are arranged on the adjusting
assembly and detachably connected with the fixing rod. According to the invention, a sound alarm can be actively sent to the surrounding environment through the
sound production assembly, so that a worker can make a quick response after a collision accident; active alarming is achieved by communicating the sound production assembly with the external air source, the method is completely independent of external power supply, the
electric spark risk is completely eradicated, the anti-explosion requirement of an
aviation fuel oil filling operation scene is met, and the safety of the
aviation fuel oil filling process is remarkably improved.