Natural gas instrument filter screen quick assembly disassembly device

The utility model provides a natural gas instrument filter screen quick assembly disassembly device, includes: hinge (1), make -up formula cutting ferrule (2), filter screen (3), preceding dop (4), fixed pin (5), lead screw (6), check nut (7), back dop (8), its characterized in that: preceding dop (4) and back dop (8) between be equipped with filter screen (3), around make -up formula cutting ferrule (2) be two, on dop (4), back dop (8) were blocked in the front to the symmetry, it is fixed that hinge (1) is passed through to make -up formula cutting ferrule (2) one end, the other end is blocked in the open slot of last cutting ferrule by lead screw (6) connected through fixed pin (5) on the cutting ferrule down, locks through check nut (7). Preceding dop (4), back dop (8) of two symmetries separate the certain distance welding on the natural gas pipe line of the back of natural gas instrument with natural gas instrument. The utility model discloses dismantle filter screen convenient and fast, labour saving a