Patent ID: 8303000

Claim:
A quick release connector comprising: a body being hollow, being manufactured as a single piece and having an external surface; an internal surface; a connecting end; a holding end being adapted to connect with a plug; a middle; an air inlet chamber formed in the body near the connecting end and having a diameter; a mounting recess formed in the body between the ends, communicating with the air inlet chamber and having an internal surface; a protruding face formed on the internal surface of body between the air inlet chamber and the mounting recess; and a diameter being larger than the diameter of the air inlet chamber; an air outlet chamber formed in the body near the holding end and communicating with the mounting recess and the air inlet chamber; multiple ball holes formed through the external surface of the body at intervals near the holding end, arranged in a circle around the body and communicating with the air outlet chamber; multiple releasing holes formed through the external surface of the body at intervals between the middle and the ball holes and communicating with the air outlet chamber; a returning spring mounted in the body between the mounting recess and the air outlet chamber of the body and having two ends; and multiple balls respectively held in the ball holes in the body; a sealing valve movably mounted in the body between the air inlet chamber and the air outlet chamber to selectively close a passage between the air inlet chamber and the air outlet chamber and having a closed end being enlarged, mounted in the air inlet chamber of the body to selectively close the passage between the air inlet chamber and the air outlet chamber of the body and abutting one of the ends of the returning spring of the body; an open end mounted in the air outlet chamber of the body and communicating with the air outlet chamber; an external surface abutting the balls at the open end; at least one air inlet formed radially through the external surface of the sealing valve near the closed end and selectively communicating with the air inlet chamber or the air outlet chamber; and a pressing ring mounted in the sealing vale near the open end of the sealing valve; and an outer sleeve slidably mounted around the body and having a mounting end mounted around the body near the middle of the body; a pushing end mounted around the body at the holding end of the body; an internal surface; a spring recess formed in the internal surface of the outer sleeve at the mounting end around the body; a holding recess formed in the internal surface of the outer sleeve and selectively abutting the balls; and a pressing spring mounted around the body in the spring recess and abutting the middle of the body to make the balls hold between the holding recess, the ball holes and the external surface of the sealing valve at the open end.