Underground air speed and air volume detection fixing device

The utility model provides an underground air speed and air volume detection fixing device, relates to the technical field of air speed and air volume detection, and aims to solve the problems that an existing fixing device cannot be suitable for underground wells with different sizes and is inconvenient for workers to mount or dismount. The supporting assembly is installed in the well body. The air speed and air volume detector is installed in the supporting assembly. The reset assembly is installed on the supporting assembly. The number of the clamping assemblies is two, and the two clamping assemblies are installed on the supporting assembly. The hollow pipe is fixedly mounted on the right side of the fixed frame; the telescopic block is mounted in the hollow pipe in a sliding manner; the arc-shaped rod A is fixedly mounted on the right side of the telescopic block; according to the underground air speed and air quantity detection fixing device, the two springs are installed outside the two reset rods, and