The male connector is connectable to the female connector and has a flow path pipe member having an opening at one end in the extending direction, a valve body closing the opening of the flow path pipe member, the housing body, and the housing body. A movable body for deforming the valve body so as to change the form between the first form in which the opening is closed to the valve body and the second form in which the opening is opened from the valve body； A locking portion for locking the female connector in a state where the valve body and the elastic valve body of the female connector are in contact with each other, and any one of the housing main body and the movable body engages the female connector Between the restricted position which restricts the movement of the other so as to maintain the first form while maintaining the stopped state and the allowable position which permits the movement of the other so as to change from the first form to the second form A displaceable switching unit is provided.オスコネクタは、メスコネクタと接続可能であって、延在方向の一端部に開口を有する流路管部材と、流路管部材の開口を閉鎖する弁体と、ハウジング本体と、ハウジング本体に対して移動し開口が弁体に閉鎖される第１形態と開口が弁体から開放される第２形態との間で形態を変化するように弁体を変形等させる移動体とを備え、移動体が、弁体とメスコネクタの弾性弁体とが当接した状態でメスコネクタを係止する係止部を備え、ハウジング本体及び移動体のうちいずれか一方が、係止部がメスコネクタを係止している状態のまま、第１形態に維持するように他方の移動を規制する規制位置と、第１形態から第２形態へ変化するように他方の移動を許容する許容位置との間で変位可能な切り替え部を備える。
