Improved structure of breathing machine

The utility model relates to the technical field of breathing machines, and discloses an improved structure of a breathing machine, which comprises a base, the upper surface of the base is fixedly connected with a transmission device, one side of the transmission device is rotatably connected with a rotating rod, one end of the rotating rod is fixedly connected with an adjusting rod, the upper surface of the adjusting rod is fixedly connected with a lantern ring, and the lantern ring is fixedly connected with the base. The upper surface of the lantern ring is fixedly connected with a first fixing block, one side of the first fixing block is in threaded connection with a bolt, and one end of the adjusting rod is in threaded connection with a sleeve through a thread. Through cooperative arrangement of the transmission device, the adjusting rod, the sleeve, the threaded hole, the lantern ring, the first fixing block, a bolt and the sleeve, a breathing tube of the breathing machine is fixed to the lantern ring, t