Stomach tube cannula connecting sleeve capable of effectively preventing blockage

The utility model discloses a stomach tube intubation connecting sleeve capable of effectively preventing blockage, which comprises a tube body, a tube hole is coaxially arranged on the axis of the tube body, one end of the tube body is an inserting end, the other end of the tube body is a connecting end, a plurality of spiral grooves are uniformly distributed on the inner wall of the tube wall of the tube body by taking the axis of the tube body as the center, and the spiral grooves take the axis of the tube body as the spiral axis. The spiral groove extends to the insertion end of the pipe body along the pipe wall. According to the structure, the connecting sleeve of the stomach tube intubation tube capable of effectively preventing blockage forms a one-way communication opening under the action of the petal-shaped structure A and the petal-shaped structure B, that is, when a medium acts in the tube hole, the medium in the tube hole does not enter the spiral hole through the petal-shaped structure A and the