| 摘要 |
A bottle cap is disclosed. The bottle cap includes a lower cap, a pusher and an upper cap. The lower cap is coupled to the inlet of a bottle, and has a holding part which accommodates the pusher containing an additive and includes a sharp pushing needle, a needle support rib and a jet hole. The pusher is accommodated in the holding part to operate in conjunction with the upper cap, and includes an inclined surface on the upper end of the pusher and an upper partition wall under the inclined surface and an internal space containing the additive. The lower end of the pusher is sealed by a sealing film torn when it comes into contact with the pushing needle. The upper cap is coupled to an extension tube of the holding part and includes an inner flange having on a lower end thereof an inclined pushing surface. |
