Fluid transporting device of the peristaltic type with a push pin and push plate arrangement
First Claim
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1. A fluid transporting device, comprising:
- an elastic tube;
a tube frame that holds the elastic tube in an arc;
a rotary disc disposed in the arc, the rotational center of the rotary disc aligning with the center of the arc;
a plurality of push pins disposed between the elastic tube and the rotary disc; and
a rotary push plate arranged on an upper side of the rotary disc for facilitating fluid flow inside the elastic tube from an inlet to an outlet by pushing the plurality of push pins sequentially, the rotary push plate including;
a plurality of protrusions that place a bias on the elastic tube by pushing the plurality of push pins sequentially; and
a recess disposed between the plurality of protrusions that releases the bias from the elastic tube,wherein the push pins each include;
a semispherical end portion that contacts the rotary push plate; and
a pushing end portion that places the bias on the elastic tube; and
each of the protrusions includes an arc that merges into a first slope that terminates at an outer circumference arc, that contacts the semispherical end portion of the push pin, and a second slope that extends away from the outer circumference arc.
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Abstract
A fluid transporting device is of a writhing type for transporting a fluid continuously. The fluid transporting device comprises a plurality of push pins arranged along a tube and radially on a concentric arc for squeezing a portion of the tube through which the fluid is fed and having elasticity substantially at right angles, and rollers for pushing those push pins sequentially from the inlet side to the outlet side of the fluid. With this structure, it is possible to provide a thin, small fluid transporting device for continuing a stable flow rate, and a fluid transporter having the fluid transporting device.
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Citations
14 Claims
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1. A fluid transporting device, comprising:
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an elastic tube; a tube frame that holds the elastic tube in an arc; a rotary disc disposed in the arc, the rotational center of the rotary disc aligning with the center of the arc; a plurality of push pins disposed between the elastic tube and the rotary disc; and a rotary push plate arranged on an upper side of the rotary disc for facilitating fluid flow inside the elastic tube from an inlet to an outlet by pushing the plurality of push pins sequentially, the rotary push plate including; a plurality of protrusions that place a bias on the elastic tube by pushing the plurality of push pins sequentially; and a recess disposed between the plurality of protrusions that releases the bias from the elastic tube, wherein the push pins each include; a semispherical end portion that contacts the rotary push plate; and a pushing end portion that places the bias on the elastic tube; and each of the protrusions includes an arc that merges into a first slope that terminates at an outer circumference arc, that contacts the semispherical end portion of the push pin, and a second slope that extends away from the outer circumference arc. - View Dependent Claims (2, 3, 4, 5, 11)
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6. A fluid transporting device, comprising:
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an elastic tube; a tube frame that holds the elastic tube in an arc; a rotary disc disposed in the arc, the rotational center of the rotary disc aligning with the center of the arc; a plurality of push pins disposed between the elastic tube and the rotary disc; and a rotary push plate arranged on an upper side of the rotary disc for facilitating fluid flow inside the elastic tube from an inlet to an outlet by pushing the plurality of push pins sequentially, the rotary push plate including; a plurality of protrusions that place a bias on the elastic tube by pushing the plurality of push pins sequentially, each of the protrusions being non-symmetrical when viewed in plan such that each protrusion includes an arc that merges into a first slope that terminates at an outer circumference arc, which contacts the semispherical end portion of the push pin, and a second slope that extends away from the outer circumference arc; and a recess disposed between the plurality of protrusions that releases the bias from the elastic tube, wherein the push pins each include; a semispherical end portion that contacts the non-symmetrical protrusions of the rotary push plate; and a pushing end portion that places the bias on the elastic tube. - View Dependent Claims (7, 8, 9, 10, 12)
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13. A fluid transporting device, comprising:
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an elastic tube; a tube frame that holds the elastic tube; a rotary disc; a plurality of push pins disposed between the elastic tube and the rotary disc; and a rotary push plate arranged on an upper side of the rotary disc for facilitating fluid flow inside the elastic tube from an inlet to an outlet by pushing the plurality of push pins sequentially, the rotary push plate including; a plurality of protrusions separated by a plurality of recesses, the protrusions placing a bias on the elastic tube by pushing the plurality of push pins sequentially; and wherein the push pins each include; a semispherical end portion that contacts the rotary push plate; a pushing end portion that places the bias on the elastic tube; and each of the protrusions include a leading edge defined by a radially inwardly extending arc that merges into a first slope that extends radially outward and terminates at an outer circumference arc, the outer circumference arc merging into a trailing edge defined by a second slope that extends radially inward away from the outer circumference arc. - View Dependent Claims (14)
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Specification