This creation is a kind of neck protection.It includes the following protective equipment,One upper guard and two adjustment units,The lower protector can be rotated to connect the upper protector.Two sides of the upper guard are respectively provided with a hole.Two stable grooves are formed at the upper and lower ends of the perforation.2. The adjusting unit group is provided with lower and upper protectors, and the lower protectors are clasped.Two adjustment units each include a rod body,One slide seat,One reset piece and one gasket,The slide seat is located at the lower guard.The sliding seat system forms two auxiliary wings.The reset part is sleeved on the rod body.The gasket is against the reset piece.The invention provides a way to push the gasket away from the sliding seat by adjusting the reset part of the unit.Make the adjustment unit firmly against the lower guard.Improve the tightness of the lower guard buckle and the upper guard.And the stability is improved by the two auxiliary wings of the slide seat extending into the two stable grooves of the corresponding upper guard.It can adjust the position of the upper guard smoothly.本創作係一種護頸，其包含一下護具、一上護具及二調整單元，下護具可旋轉的組接上護具，上護具的兩側分別設一穿孔，穿孔的上下兩端形成二穩定槽，二調整單元組設下護具及上護具並卡扣下護具，二調整單元各包含一桿體、一滑座、一復位件及一墊片，滑座位於下護具，滑座係形成二輔助翼，復位件套設於桿體上，墊片抵住復位件，本創作護頸藉由調整單元的復位件提供一力道使得墊片推離滑座，造成調整單元緊緊抵靠下護具，讓下護具卡扣上護具的緊密性提高，且藉由滑座的二輔助翼伸入對應上護具的二穩定槽提高穩定性，能平穩調整上護具位置。
