Respiratory muscle trainer

The utility model relates to a medical treatment equipment facilities field especially relates to a respiratory muscle trainer, including lower casing, go up that casing, silica gel are difficult to articulate, resistance adjusting device and apron, silica gel is difficult to articulate and is installed the front end at last casing, lower casing is installed in the rear end of last casing, resistance adjusting device is arranged in down the cavity that casing and epitheca body group become, the apron is installed on last casing, the top of apron is provided with a plurality of air vents, upward contact department of casing and apron be provided with expiration hole, air vent and expiration hole are linked together, expiration hole coats and is stamped sheet -form film. The utility model discloses a parts such as sheet -form film and expiration hole constitute the parts that are similar to the check valve, have formed special expiration route, exhale and use different gas passage when breathing in respectively