Intraoral mouth opening training device

The invention discloses an intraoral mouth opening training device which comprises a mounting base, air bags, an upper tooth moving plate, a lower tooth moving plate, a tooth fixing mechanism, a first switch, a first spring, a driving rod, a locking mechanism, a limiting mechanism, an inflation pump and a battery. An upper tooth moving plate is fixedly arranged at the top of the air bag at the upper end and is in sliding connection with the mounting seat, and a lower tooth moving plate is fixedly arranged at the bottom of the air bag at the lower end; compared with the prior art, the intraoral mouth opening training device has the advantages that firstly, the tooth fixing mechanism is used, so that the device is fixed with teeth of a patient, meanwhile, stress points are dispersed, and then the limiting mechanism is controlled through the adjusting mechanism; then the limiting mechanism expands the air bag to push the distance between the upper tooth moving plate and the lower tooth moving plate to restrain,