Flash inspector for online flashing point analyzer

The utility model provides a flash inspector for online flashing point analyzer, which is used for detecting the instant flash generated in the online flashing point analyzer, and comprises an inductive switch 1, a detection surface of inductive switch 3, a detection piece 4, a small spring 6, a small steel ball 8, a coating 9 and a flash room 10. The middle of an analyzing cup cover 5 is provided with a coating 9 which is internally orderly provided with a small steel ball 8, an exhaust hole 7, a small spring 6, a detection piece 4 and a detection surface of inductive switch 3; the coating 9 is provided with a fastening cap 2 which is provided with an inductive switch 1. The utility model improves the reliability and analyzing precision of the whole analyzing apparatus, and prolongs the maintenance period and the fault-free time of the apparatus; besides, as necessary, the utility model can be used for detecting the gas pressure mutation in some small devices for oil refining.