UNDERGROUND GAS DETECTING MACHINE

摘要

PROBLEM TO BE SOLVED: To detect underground gas accurately. SOLUTION: A machine body 4 provided with a traveling body 1 is fixed with a bucket 13 swingable up and down and the suction opening 22 of the bucket 13 is coupled with a hose 21. The hose 21 is coupled with the suction side of an air sucker 20 mounted on the machine body 4. The hose 21 is fixed with a gas sensor 30 for sensing gas in the air sucked into the hose 21. Since underground gas is concentrated and impinges against the gas sensor 30 under highconcentration state, it can be detected accurately.