Alcohol perfusion connecting tube for gastrointestinal endoscope

The utility model provides an alcohol perfusion connecting tube for a gastrointestinal endoscope, which is characterized by comprising a connecting tube assembly, an elastic ring, an anti-reflux assembly, a limiting rod, an air bag assembly and a shielding assembly, the connecting pipe assembly comprises a liquid accumulation pipe and a liquid separation pipe; one end of the liquid accumulation pipe is closed, and the other end of the liquid accumulation pipe is communicated with the plurality of liquid separation pipes in parallel; the elastic ring is arranged at the end, away from the liquid accumulation pipe, of the liquid distribution pipe in the circumferential direction of the liquid distribution pipe. The anti-backflow assembly is arranged at the end, away from the liquid accumulation pipe, in the liquid distribution pipe. The limiting rod is arranged between the liquid accumulation pipe and the liquid separation pipe; the air bag assembly is arranged on the limiting rod in a sleeving mode and can be i