| 摘要 |
<p>A sealed water storage bag comprises a bag body (7). A valve body is installed at the opening of the bag body. The valve body comprises a valve seat (6), a gasket (5), and a fixing cover (3). The valve seat is a short circular tube with a flange at one end. The circular tube part of the valve seat passes through the opening of the bag body and the flange part is inside the bag body. The valve seat is fixedly connected to the bag body through the gasket. Several inverted hooks are evenly arranged circumferentially outside the tube wall of the end portion of the circular tube of the valve seat. A terminal plate is installed at an end of the circular tube of the valve seat. The terminal plate has the shape of a circle, whose diameter is greater than the inner diameter of the circular tube of the valve seat and is smaller than the outer diameter of the circular tube of the valve seat. A fixing cover is installed at the end portion of the circular tube of the valve seat. The fixing cover is formed by connecting end faces of two rings whose outer diameters are same but inner diameters are different. The inner diameter of the ring with the larger inner diameter of the fixing cover corresponds to the outer diameter of the circular tube of the valve seat, an insertion structure corresponds to the inverted hook structure at the end portion of the circular tube of the valve seat, and the inner diameter of the ring with the smaller inner diameter at the other end is smaller than the outer diameter of the terminal plate. The water bag has a simple structure and is suitable for practical applications of various different cases.</p> |
