The utility model relates to the technical field of medical-
nursing thoracic
surgery, and provides a
breathing exercise testing device which comprises a
breathing exercise machine body and a blowing
nozzle, the surface of the
breathing exercise machine body is communicated with a connecting
pipe, fixing mechanisms are arranged on the two sides of the connecting
pipe, each fixing mechanism comprises a rotating frame and a threaded ring, and the rotating frames are connected with the blowing
nozzle. The rotating frame is fixedly connected with the
breathing exercise machine body, the inner wall of the rotating frame is rotatably connected with a rotating plate, one end of the rotating plate is fixedly connected with a clamping plate, the clamping plate is an elastic plate, the section of the clamping plate is in a circular arc shape, and the inner wall of the rotating frame is sleeved with two coil springs. According to the
breathing exercise testing device, the fixing mechanism is adopted, under the cooperation effect of the rotating frame, the rotating plate, the clamping plate, the auxiliary
pipe, the
coil spring, the annular groove, the threaded ring and the anti-skid thread structure, the
breather pipe is rapidly and effectively fixed, the
air tightness is improved, air leakage is prevented, and the practicability of the device is improved.