The bright exposure Yi Seed Needles Head Bao Nursing Installed of this Hair are set. Ci Needles Head Bao Nursing Installed set Inner chambers, bracket and Needles Head Block Block , Needles Head Block Block Department comprising that can slide Move Yu Needles Head and move the shifting Move that Move blocks the tips Needles Head to part position what Inner chambers. Bomb springs are towards Zhu Needles Head Shaft to applying a Pian Pressure Give Needles Head Block Block. When Needles Head Bao Nursing Installed set the positions Shou Bao Nursing non-From and move Move to Shou Bao Nursing Wei Zhi Time , Needles Head Block Block Department shiftings Move into part position what Inner chambers. Needles Head Block Block are Shou Bao Nursing Wei Zhi Department by Trail to Yi Ji Longitudinal upward work Move is limited. Bracket also prevent Needles Head Block Block Trail Xiang, Longitudinal to and week directions Wai on shifting Move.本發明揭露一種針頭保護裝置。此針頭保護裝置包含可滑動於針頭的內腔、支架以及針頭擋塊,針頭擋塊係移動至部份位於內腔以堵塞針頭尖端的移動。彈簧朝著針頭的軸向施一偏壓給針頭擋塊。當針頭保護裝置從未受保護位置移動到受保護位置時,針頭擋塊係移動至部份位於內腔中。針頭擋塊在受保護位置係受到徑向以及縱向上的活動限制。支架亦防止針頭擋塊在徑向、縱向以及周圍方向上的移動。
