| 摘要 |
<p>A toy ball is provided in the present invention. The nozzle of the ball comprises a bracket and a sealing membrane. A hole is formed in the central area of the bracket, the size of which corresponds with that of the inflation hole in the ball body. The bracket is set at the place where the inner chamber of the ball body corresponds with the inflation hole. There is a convex spherical surface on the central area of the sealing membrane, the radius of which is slightly bigger than that of the inflation hole. One air hole or more are provided on the periphery of the sealing membrane. The verge of the membrane is glued to the bracket verge. The sealing membrane will move in the inward direction when the ball is inflated through the inflation hole. At the same time, the sealing membrane will be pressed in the outward direction by the pressure in the ball body when the imposed outer pressure disappears, so that the function of automatic sealing can be fulfilled. As long as the sealing membrane is pressed slightly by a finger, then the function of discharging air can be achieved. The present invention is endowed with simple structure as well as the convenience of the inflation operation.</p> |
