Fluid transportation device

A fluid transportation device, comprising:

• a valve cover comprising a first opening and a second opening, wherein a bottom edge of the valve cover has a chamfer;
• a valve body comprising an inlet passage, an outlet passage, a first surface and a second surface, wherein a first protrusion platform is protruding from the second surface so that a first coupling plane is concavely formed on the second surface, the inlet passage and the outlet passage run through the first surface and the second surface, an inlet opening is formed on the second surface and in communication with the inlet passage, and an outlet opening is formed on the second surface and in communication with the outlet passage;
• a valve membrane comprising two valve plates with the same thickness, plural extension parts disposed around each of the valve plates for elastically supporting the valve plates, and a hollow part formed between each two adjacent extension parts;
• a first gasket attached on the first coupling plane to be arranged between the valve body and the valve membrane, the first gasket having a first perforation corresponding to the inlet opening;
• a valve chamber seat comprising a third surface, a fourth surface, an inlet valve channel and an outlet valve channel, wherein a second protrusion platform is protruding from the third surface so that a second coupling plane is concavely formed on the third surface, the inlet valve channel and the outlet valve channel run through the third surface and the fourth surface, the two valve plates of the valve membrane are respectively supported by the inlet valve channel and the outlet valve channel to form two valve structures thereon, a pressure chamber is concavely formed on the fourth surface, and the pressure chamber is in communication with the inlet valve channel and the outlet valve channel;
• a second gasket attached on the second coupling plane to be arranged between the valve membrane and the valve chamber seat, the second gasket having a second perforation corresponding to the outlet opening of the valve body;
• an actuator covering and sealing the pressure chamber of the valve chamber seat;
• and
• an outer sleeve comprising an inner wall, an accommodation space surrounded by the inner wall, and an annular protrusion structure formed on the bottom of the inner wall,
• wherein the valve body, the first gasket, the valve membrane, the second gasket, the valve chamber seat and the actuator are sequentially stacked and corresponding to each other and accommodated within the accommodation space of the outer sleeve and supported by the annular protrusion structure of the outer sleeve, wherein the inlet passage and the outlet passage of the valve body are respectively penetrating through the first opening and the second opening of the valve cover, and the valve cover is introduced into the accommodation space of the outer sleeve by the chamfer thereof to be tightly fitted with the inner wall of the outer sleeve and to be assembled with the valve body, the first gasket, the valve membrane, the second gasket, the valve chamber seat and the actuator which are sequentially stacked so that the valve cover, the valve body, the first gasket, the valve membrane, the second gasket, the valve chamber seat and the actuator are positioned.