SAMPLING NOZZLE FOR COMPACT GAS DETECTING DEVICE

摘要

PROBLEM TO BE SOLVED: To obtain a nozzle suitable for a compact gas detecting device and capable of freely adjusting its shape so as to be inserted into various sections. SOLUTION: A first wire rod provided with elasticity and a second wire rod provided with elastisity are parallelly wound on a tube body 8 made of a flexible material into a coil in such a way that the second wire rod is sandwiched by the first wire rod and that at least a part of the outer circumference becomes of a diameter to be held at the inner surface of the tube body 8. A shape holding material 9 to hold the overall shape by the rigidity of the second wire rod is inserted into the tube body 8. When a sampling nozzle 2 is bent, the first wire rod maintains the coil shape by its elasticity, the second wire rod is changed into a shape according to the bending to maintain the overall shape, and the tube body 8 at the outer circumference maintains airtightness.