Mask ventilation resistance detector

The invention discloses a mask ventilation resistance detector, and belongs to the technical field of mask ventilation detection devices. The mask ventilation resistance detector comprises an upper hollow column and a lower hollow column, an adjusting plate is fixedly connected to the upper hollow column; a pressing rod is slidably connected into the adjusting plate. The bottom of the pressing rodis fixedly connected with a first pressing plate; the top of the pressing rod is fixedly connected with a threaded rod; the threaded rod is in threaded connection with a circular ring; the circular ring is fit to the adjusting plate, the pressing rod is sleeved with a first spring; a placing plate and a first pressing plate are fixedly connected to the lower hollow column and attached to the placing plate, a rotating shaft is rotatably connected into the lower hollow column, a gear is fixedly connected to the rotating shaft, a rack is fixedly connected to the upper hollow column, the gear ismeshed with the rack, a ci