Abstract: A quick release connector includes a connector body provided with a through hole and a plurality of receiving holes connected to the through hole, a plurality of positioning balls movably mounted in the receiving holes and partially extending into the through hole, a movable ring mounted on the connector body, an elastic member biased between the connector body and the movable ring, and an outer sleeve movably mounted on the connector body and provided with a plurality of receiving recesses. When the outer sleeve pushes the movable ring, the receiving recesses of the outer sleeve align with the receiving holes of the connector body, and the positioning balls are detached from the through hole of the connector body and are moved into the receiving recesses of the outer sleeve.

Abstract: A quick connector includes a connector body, a spring, a plurality of positioning balls, a push ring, a movable sleeve, a snap ring, and a locking structure. When a coupling is inserted into the connector body, the push ring is pushed the spring to press the positioning balls which press the coupling so that the coupling is locked onto the connector body. The movable sleeve is driven to return the push ring to release the coupling from the positioning balls. Thus, the movable sleeve is locked by the locking structure and cannot be moved any more so that the movable sleeve will not be driven inadvertently due to an external force and can press the positioning balls to lock the coupling so as to prevent the coupling from being detached from the connector body.

Abstract: A quick connector includes a connector body, a spring, a plurality of positioning balls, a push ring, a movable sleeve, a snap ring, and a locking structure. When a coupling is inserted into the connector body, the push ring is pushed the spring to press the positioning balls which press the coupling so that the coupling is locked onto the connector body. The movable sleeve is driven to return the push ring to release the coupling from the positioning balls. Thus, the movable sleeve is locked by the locking structure and cannot be moved any more so that the movable sleeve will not be driven inadvertently due to an external force and can press the positioning balls to lock the coupling so as to prevent the coupling from being detached from the connector body.

Abstract: A connector structure includes a quick connector, a first connector connected with the quick connector, and a second connector connected with the quick connector. A movable ring is mounted on the quick connector and provided with a coating layer. The first connector is provided with a coating layer. The second connector is provided with a coating layer. Thus, when the coating layer of the movable ring of the quick connector, the coating layer of the first connector and the coating layer of the second connector have the same color, the quick connector, the first connector and the second connector have the same size and specification, so that the user can quickly distinguish and select the quick connector, the first connector and the second connector of the same size and specification.