Fixed and elevating gear of gas sensor

The utility model relates to a gas sensor's fixing device specifically is fixed and elevating gear of gas sensor in the pit. Fixed and elevating gear of gas sensor includes and fixes the band iron on top of roadway board and lateral wall through the stock, is fixed with the pulley on fixing the band iron on the top of roadway board, and the winding has the stay cord on the pulley, and the one end of stay cord is connected with gas sensor. Fixed band iron support on the stock, fixed pulley on the band iron support, convenient the fixing on the band iron in position can be hung according to gas sensor's standard to the pulley, then connects gas sensor through the rope, and gas sensor can freely go up and down like this to accord with the standard of hanging. The utility model provides a but fixed and elevating gear of gas sensor convenient and fast hangs gas sensor according to the standard, and accessible stay cord control gas sensor freely goes up and down. 本实用新型涉及井下瓦斯传感器的固定装置，具体为瓦斯传感器固定与升降装置。瓦斯传感器固定与升降装置，包括通