A kind of de- nipple of tension, nipple has a nipple head and a nipple plate portion, its characteristic is in what: having an oblique chase portion inside between nipple plate portion and nipple head, the annular surface up in what nipple plate portion is equipped with a prominent ring again, and a circular groove is formed in the prominent ring of what, the space of stretching is reached using the nipple plate portion in chase portion.一種抗拉脫奶嘴，奶嘴具有一奶嘴頭部與一奶嘴板部，其特徵在於：在奶嘴板部與奶嘴頭部間有一往內斜向之凹溝部，又於奶嘴板部之往上之環狀表面設有一突環，並於突環中形成一環溝，利用凹溝部之奶嘴板部達到拉伸之空間。
