Liquid cartridge having valve chamber in which movable body is disposed

A liquid cartridge comprising:

• a liquid chamber configured to store liquid therein;
• a valve chamber extending in a first direction away from the liquid chamber, the valve chamber being defined by a side wall surface and a proximal wall surface, the side wall surface extending in the first direction and having an annular-shaped cross-section taken along a plane orthogonal to the first direction, the side wall surface having a first end and a second end positioned downstream of the first end in the first direction, the proximal wall surface provided on the first end of the side wall surface, the side wall surface defining a circumferential direction and being formed with a first opening and a second opening, the first opening and the second opening being separated from each other in the circumferential direction and at least partially overlapping the plane;
• a first air channel configured to allow air to flow between the valve chamber and ambient air through the first opening;
• a second air channel configured to allow air to flow between the liquid chamber and the valve chamber through the second opening;
• a movable body disposed within the valve chamber and configured to move in a in a second direction opposite to the first direction from a first state to a second state, the movable body having an outer surface;
• a first sealing part having an annular shape and provided on the outer surface of the movable body, the first sealing part being in close contact with the side wall surface and configured to move in the second direction;
• and
• a second sealing part having an annular shape and provided on the outer surface of the movable body at a position toward the second end of the side wall surface from the first sealing part, the second sealing part being in close contact with the side wall surface and configured to move in the second direction, the first sealing part and the second sealing part defining an enclosed space therebetween in the valve chamber, wherein;
• when the movable body is in the first state, the first sealing part is positioned between the first opening and the second opening and interrupts communication therebetween, the second sealing part being positioned toward the second end of the side wall surface from the first opening and the second opening;
• and
• when the movable body is in the second state, the first opening and the second opening are in communication with each other for allowing air to flow therebetween through the enclosed space.