Abstract: A detachable ball inflation and deflation device is disposed in a cavity of a ball. The device includes an air inflation unit, a non-return unit, and a reinforcement sleeve. By applying a force to press the air inflation unit repeatedly, the air outside the ball passes the non-return unit to enter the inside of the ball so as to inflate the ball, and the air filled into the ball won't deflate. The device has the function to deflate the ball in a quick way. When the air inflation unit is pulled out of a portion of the ball, the air inside the ball can be deflated quickly, so that the ball can be carried and stored conveniently.

Abstract: A detachable ball inflation and deflation device is disposed in a cavity of a ball. The device includes an air inflation unit, a non-return unit, and a reinforcement sleeve. By applying a force to press the air inflation unit repeatedly, the air outside the ball passes the non-return unit to enter the inside of the ball so as to inflate the ball, and the air filled into the ball won't deflate. The device has the function to deflate the ball in a quick way. When the air inflation unit is pulled out of a portion of the gall, the air inside the ball can be deflated quickly, so that the ball can be carried and storage conveniently.

Abstract: A ball with an inflation device includes a ball body and an inflation unit disposed in the ball body. The ball body has a reinforcement cavity on an inner wall thereof to accommodate the inflation unit and communicate with the inflation unit for air inflation. The inflation unit has an inflation body coupled to the reinforcement cavity of the ball body. An air chamber is formed between the ball body and the inflation body. The inflation body has an air inlet, an inflation inlet and leakage-proof members respectively coupled to the air inlet and the inflation inlet. The inflation inlet communicates with the inside of the ball body. When in use, the user presses down the air inlet of the press portion with his/her finger, the air in the air chamber will pass the leakage-proof member into the ball body. When the user releases his/her finger, the leakage-proof member is used to stop the air in the inner space of the ball body from leakage. Outer air enters the air chamber through the air inlet.