Fluid coupler device and interface structure of daughterboard

A fluid coupler device comprising a plug receiving one of a male member attached to an end of a pipe and a female member attached to an end of a pipe and a receptacle receiving the other of the male member and the female member for coupling the pipes through which a fluid flows;

• wherein the receptacle comprises:
• a receptacle-side slider including a floating mechanism capable of moving backward in the direction opposite to a direction in which the plug is to be connected and being pressed by a receptacle-side spring in the direction in which the plug is to be connected;
• a first lock mechanism functioning to couple and fix the receptacle to the plug;
• and
• a second lock mechanism functioning to prevent the backward movement of the floating mechanism;
• the plug comprises:
• a plug-side slider being pressed by a plug-side spring having a press force than the receptacle-side spring in the direction in which the receptacle is to be connected;
• and
• an indentation in which the first lock mechanism fits;
• and
• when the plug is inserted into the receptacle, the plug-side slider hits against the first lock mechanism and is prevented from moving forward, the plug-side spring is compressed to move only the plug forward;
• when connection between the male member and the female member is complete, the first lock mechanism fits into the indentation and the prevention is removed to move the plug-side slider forward;
• the forward movement of the plug-side slider places the first lock mechanism in a lock state to couple and fix the plug to the receptacle and the plug-side slider pushes the receptacle-side slider to cause the receptacle-side slider to move backward;
• and
• the backward movement of the receptacle-side slider unlocks the second lock mechanism to cause the floating mechanism to move the receptacle backward.