The utility model relates to a modified structure of a nipple, which is generally formed as a volcanic nipple, which is formed by a top-length elongated cylindrical head and a connected wide-wafer spherical shell-like skirt, and then is contracted into a concave neck by a lower end of the skirt. Finally, the bottom of the concave neck is expanded outward to form a bottom edge portion, which is characterized in that: a plurality of annular protrusions are formed on the top surface of the bottom edge portion, and the lower end of the mouth portion and the skirt portion are soft by the hardness of A10~30. The tannin is formed by the hard rubber of Xiao's hardness A50~80 from the lower end of the skirt through the concave neck and the bottom edge.一種奶嘴改良結構，其一體成型通常如火山狀奶嘴由最上端瘦長圓柱狀之嘴頭部與相連之寬腰圓球殼狀之蓬裙部，再由蓬裙部之下端收縮成凹頸部，最後由凹頸部底往外擴成底緣部，其特徵在於：在底緣部之頂面形成數條環狀突起，且嘴頭部與蓬裙部近下端由蕭氏硬度A10~30之軟矽膠形成，由蓬裙部近下端經凹頸部與底緣部由蕭氏硬度A50~80之硬矽膠形成。
