Connector and socket

A connector to be attached to an opening of a liquid storing container, the connector comprising:

• a plug to be attached to the opening;
• and
• a socket to be detachably attached to the plug, wherein
• the plug includes a plug body in which a first liquid outflow passage through which a liquid contained in the liquid storing container is drawn out and a first liquid inflow passage for guiding the liquid flowing in from an outside of the liquid storing container into the liquid storing container are formed, and
• the socket includes:
• a socket body in which a second liquid outflow passage through which the liquid is drawn out from the first liquid outflow passage flows to the outside and a second liquid inflow passage for guiding the liquid flowing in from the outside of the liquid storing container into the second liquid inflow passage are formed, the socket body being provided with a cylindrical insertion hole penetrating through each of the second liquid outflow passage and the second liquid inflow passage;
• a columnar rotary valve including an outflow through-hole formed at a position where the second liquid outflow passage is disposed and an inflow through-hole formed at a position where the second liquid inflow passage is disposed, the rotary valve being inserted into the insertion hole;
• and
• a switching mechanism that causes the rotary valve to be rotated and switches an open state and a closed state, the open state being a state in which the outflow through-hole and the second liquid outflow passage communicate with each other and the inflow through-hole and the second liquid inflow passage communicate with each other, the closed state being a state in which the outflow through-hole and the second liquid outflow passage do not communicate with each other and the inflow through-hole and the second liquid inflow passage do not communicate with each other,
• the rotary valve includes:
• a pair of convex portions respectively in contact with both ends of the insertion hole to seal an outflow of the liquid;
• and
• a concave portion provided between the pair of convex portions, a cleaning space in which a cleaning fluid is circulated being formed between the concave portion and an inner peripheral surface of the insertion hole, and
• the socket body includes:
• a cleaning fluid inflow passage for guiding the cleaning fluid to the cleaning space;
• and
• a cleaning fluid outflow passage through which the cleaning fluid flows out of the cleaning space.