| 摘要 |
<p>Provided is a venting cup cover, comprising a rotary cover (2), a shell (3) and a sliding piece (4). The rotary cover (2) is provided with a hemispherical portion, and the shell (3) and the hemispherical portion are buckled to form a sliding groove for the sliding piece (4) to slide therein; the sliding piece (4) is assembled on the sliding groove; the rotary cover (2) is further provided with a nozzle hole (23), a venting valve hole (24) and a clamping piece (25); the nozzle hole (23) is fixedly connected to a nozzle of a suction tube, or the nozzle hole (23) is fixed to a suction tube component; the nozzle or the suction tube component can be bent along the clamping piece (25) under the action of the sliding piece (4). The venting cup cover is characterized by being further provided with a venting valve fitted over the venting valve hole (24), wherein a rib (42) is provided on the inner side of the sliding piece (4) and corresponds to the venting valve; when the sliding piece (4) completely closes or opens the cup cover, the venting valve closes the venting valve hole (24); during part or all of the course of completely closing and opening the cup cover, the convex piece (42) acts on the venting valve such that the venting valve opens the venting valve hole (24) to form an air channel from inside to outside of the cup cover. The venting cup cover can adjust the air pressure of a container so as to prevent ejection and can be used on a beverage container.</p> |
