Medical vital capacity training device

The utility model relates to the technical field of medical instruments. The utility model discloses a vital capacity training device for medical treatment. The device comprises a blowing nozzle and ashell device, the blowing nozzle is fixedly connected with the shell device through an air conveying pipe; one end of the gas conveying pipe penetrates through the shell device and extends into the shell device; a transparent cylinder body is arranged in the shell device; the gas conveying pipe is fixedly connected with the transparent cylinder body through a gas spraying pipe; the utility modeldiscloses a medical vital capacity training device. Gas exhaled by a user can be effectively conveyed into the transparent cylinder body through the arranged gas conveying pipe; once not in use, the transmission rod is controlled by the switch to open the valve to discharge air in the air containing tank completely, a user can exhale air through the air conveying pipe and the blowing nozzle, exhaled air volume data can be