Fluid transport system with elastic tube and detaching cam arrangement
First Claim
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1. A fluid transportation apparatus, comprising:
- an elastic tube;
a tube frame including a tube guide groove to which the elastic tube is attached such that the elastic tube forms a circular arc;
a cam driving wheel including a rotation center inside the circular arc of the elastic tube;
a first cam fixed to and rotatable with a center shaft of the cam driving wheel;
a second cam rotatably supported by the center shaft of the cam driving wheel, rotation of the second cam about the cam driving wheel being actuated through contact with the first cam during rotation of the first cam; and
a plurality of fingers which radially extend from the rotation center between the elastic tube and the first and second cams, wherein;
the first and second cams include at least a first condition in which the plurality of fingers release the elastic tube, and a second condition in which at least one of the plurality of fingers closes the elastic tube; and
during the second condition, the first and second cams sequentially press the plurality of fingers, and the plurality of fingers sequentially repeat closure and release of the elastic tube from an inlet side to an outlet side of fluid.
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Abstract
A fluid transportation system includes an elastic tube, a tube frame to which the tube is attached such that the tube forms a circular arc, a first cam and a second cam disposed inside the tube, and fingers which radially extend from a rotation center in the space between the tube and the first and second cams. The first and second cams produce a first condition where the fingers are all released and a second condition where at least one of the fingers constantly closes the tube. The first and second cams sequentially press the fingers, and the fingers sequentially repeat closure and release of the tube so that fluid can continuously flow.
12 Citations
7 Claims
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1. A fluid transportation apparatus, comprising:
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an elastic tube; a tube frame including a tube guide groove to which the elastic tube is attached such that the elastic tube forms a circular arc; a cam driving wheel including a rotation center inside the circular arc of the elastic tube; a first cam fixed to and rotatable with a center shaft of the cam driving wheel; a second cam rotatably supported by the center shaft of the cam driving wheel, rotation of the second cam about the cam driving wheel being actuated through contact with the first cam during rotation of the first cam; and a plurality of fingers which radially extend from the rotation center between the elastic tube and the first and second cams, wherein; the first and second cams include at least a first condition in which the plurality of fingers release the elastic tube, and a second condition in which at least one of the plurality of fingers closes the elastic tube; and during the second condition, the first and second cams sequentially press the plurality of fingers, and the plurality of fingers sequentially repeat closure and release of the elastic tube from an inlet side to an outlet side of fluid. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification