PROBLEM TO BE SOLVED: To provide a liquid administration tool capable of temporality stopping the administration.SOLUTION: A liquid administration tool 10 includes: a structure 40 having a syringe 60 that can accommodate liquid inside and a needle tube 66 that can be communicated with the inside of the syringe 60； an operation part 20 that discharges the liquid inside the syringe 60 from the needle tube 66 by moving toward the tip direction with respect to the structure 40； a cover member 30 movable between a protection position where the needle tube 66 is covered and an exposure position where the needle tube 66 is exposed； a second coil spring 11 for energizing the cover member 30 toward the tip direction； and a first coil spring 12 for energizing the operation part 20 to the tip direction with respect to the structure 40. The operation part 20 and the structure 40 include a projection part 96 for resistance and a claw part 105 for resistance that change the contact position when the operation part 20 moves to the tip direction with respect to the structure 40, and contact each other while applying pushing force.【課題】一時的に投与を停止できる液体投与具を提供する。【解決手段】内部に液体を収容可能なシリンジ６０およびシリンジ６０の内部と連通可能な針管６６を備える構造体４０と、構造体４０に対して先端方向へ移動することでシリンジ６０の内部の液体を針管６６から吐出させる操作部２０と、針管６６を覆う保護位置および針管６６を露出させる露出位置の間を移動可能なカバー部材３０と、カバー部材３０を先端方向に付勢する第２コイルバネ１１と、操作部２０を構造体４０に対して先端方向へ付勢する第１コイルバネ１２と、を有し、操作部２０および構造体４０は、操作部２０が構造体４０に対して先端方向へ移動する際に接触位置を変え、押し付け力を作用させつつ接触する抵抗用突起部９６および抵抗用爪部１０５を有する液体投与具１０である。【選択図】図２
