Pneumatic connector with locking structure

The utility model discloses a pneumatic joint with a locking structure, which comprises a joint main body, a connecting sleeve arranged in the joint main body and a pipe sleeve movably connected in the connecting sleeve, one end of the connecting sleeve extends to the outer side of the joint main body, a rotating ring is rotatably mounted on the outer side of the connecting sleeve, locking rods are symmetrically arranged on the inner wall of the rotating ring, and the locking rods are movably connected in the pipe sleeve. The pipe sleeve can be locked through the n-shaped groove, the locking rod, the rotating ring and the arc-shaped spring, the situation that the pipe sleeve is accidentally touched by external force, and consequently the clamping spring is unfolded can be prevented, the clamping spring is not prone to falling off, and the clamping spring is not prone to falling off when the pipe sleeve is not touched by the external force, so that the service life of the pipe sleeve is prolonged. When the pne