WO2006080480A1

WO2006080480A1 - Fluid transport device and fluid transporter

Info

Publication number: WO2006080480A1
Application number: PCT/JP2006/301398
Authority: WO
Inventors: Hajime Miyazaki; Kazuo Kawasumi; Kenichi Ushikoshi
Original assignee: Seiko Epson Corporation
Priority date: 2005-01-26
Filing date: 2006-01-24
Publication date: 2006-08-03
Also published as: JP3702901B1; JP2006207414A

Abstract

A fluid transport device of peristaltic type continuously transporting a fluid, comprising a plurality of pressing shafts radially disposed on a concentric circular arc along a tube and squeezing a part of the tube having an elasticity to flow the fluid in an approximately right angle direction and rollers (50) to (53) sequentially pressing these pressing shafts from the inflow side to the outflow side of the fluid. By this structure, the thin and small fluid transport device capable of sustaining stable flow and a fluid transporter having the fluid transport device can be provided.

Description

TECHNICAL FIELD FIELD OF THE INVENTION

The present invention relates to a fluid transport device and a fluid transport device including the fluid transport device. Technical background

Conventionally, as a first prior art, a plurality of rollers provided on concentric circles on the periphery of the rotor, and a tube that flows fluid between the tube receiving members are mounted, and the rotor is rotated. There is known a peristaltic fluid transport device in which the roller sequentially presses the tube to flow the fluid.

(Japanese Patent Laid-Open No. 10-2 20 3 5 7).

Also, as the second prior art, similarly to the first prior art described above, a tube that allows fluid to flow between a plurality of rollers provided at the peripheral edge of the rotor and two backings is mounted. In addition, a peristaltic fluid transport device is also known in which a roller presses the chip in sequence by rotating the rotor, and the fluid transport device is also known. The first motor module is configured to overlap the roller and the second motor module (US Pat. No. 3, 1 7 7 7 4 2).

However, in both of the inventions described in the first conventional technique and the second conventional technique, the rotor rotates while the tube is directly pressed by the roller and transports the fluid. It may be stretched in the direction of rotation, and the size of the fluid flow part of the tube (inner diameter of the tube) will change with respect to the initial size. Can be difficult.

In the first prior art described above, the housing includes a fluid transport device, a drive control circuit, a display unit, and an operation unit. It is difficult.

In the second prior art described above, since the motor module is configured to overlap the roller unit, there is a problem that it is difficult to reduce the thickness.

The present invention has been made to solve these problems, and an object of the present invention is to provide a thin and small fluid transport device that maintains a stable flow rate and a fluid transport device including the fluid transport device. Invention Disclosure ''

The fluid transport device according to the present invention includes an elastic tube, a tube frame having a tube guide wall for mounting the tube in an arc shape, a rotating plate disposed inside the tube, and between the tube and the rotating plate. A plurality of pressing shafts arranged radially, and a plurality of rollers arranged on the upper surface of the rotating plate at equal intervals on a concentric circle with respect to the rotation center of the rotating plate, and the tube guide wall And the rotation center of the rotating plate and the radial center of the plurality of pressing shafts are aligned, and the plurality of rollers sequentially press the plurality of pressing shafts to flow out from the fluid inflow side. It is characterized by flowing fluid toward ...

<D According to light; the pressing shaft presses the tube in a substantially right angle direction, so that the tube is not stretched, and this does not change the inner diameter of the tube (fluid flow part). Therefore, a stable flow rate can be obtained. '' '

In addition, since the structure is such that the pressing shaft is pressed by a rotary extrusion mechanism, the flow rate can be freely adjusted by arbitrarily setting the number of pressing shafts and strokes. Can be provided.

The roller rotates in the direction opposite to the rotation direction of the rotating plate by the frictional force with the pressing shaft. Accordingly, the frictional resistance is reduced, and the driving force of the rotating plate can be reduced. Details will be described in an embodiment described later. Since the torque generated by the motor as the drive source of the rotating plate may be small, it is possible to reduce the size, and the fluid transport device can also be reduced in size.

In the present invention, at least one of the plurality of pressing shafts closes the tube.

According to such a structure, when operating the fluid transport device, since at least one pressing shaft closes the tube, the fluid can flow continuously.

In addition, even when the operation is stopped halfway, one point of the tube is closed, so that the fluid can be prevented from flowing out. This can increase safety when the fluid is a chemical that should be considered safe. '

In addition, the fluid transporter of the present invention includes an elastic tube, a tube frame having a tube guide wall for mounting the tube in an arc shape, a rotating plate disposed inside the tube, and the tube And a plurality of pressing shafts arranged radially between the rotating plates, and a plurality of rollers arranged on the upper surface of the rotating plate at equal intervals on a concentric circle with respect to the rotation center of the rotating plate. The arc center of the tube guide wall, the rotation center of the rotating plate, and the radial center of the plurality of pressing shafts coincide with each other, and the plurality of rows, A fluid transport device characterized in that the fluid is flowed from the fluid inflow side to the fluid outflow side by sequentially pressing the pressure shafts of the fluid, and a fluid storage container for storing the fluid is communicated by the tube. It is characterized by that.

According to the present invention, since the fluid transport device having the above-described structure is employed, the above-described effects are achieved, and the fluid transport device and the fluid storage container are communicated by the tube. Accordingly, the fluid container can be easily exchanged, so that it is easy to handle and the fluid transportation device can be used repeatedly, so that there is an economic effect. The fluid transporter according to the present invention is characterized in that the fluid transport device and the fluid container are formed in parallel in a planar direction in a housing. '

According to such a structure, since the fluid transport device and the fluid storage container are arranged so as not to overlap each other, it is possible to reduce the size without increasing the thickness. In addition, since the fluid transport device and the housing for the fluid container are formed as one, the cost can be reduced.

Furthermore, the fluid transporter is provided with an opening for conducting the inside and outside of the fluid container, and a breathable film is attached to the opening.

The fluid container is sealed so that the fluid does not leak. However, when the fluid transport device is driven to flow the fluid, the fluid container becomes negative with respect to the external pressure (atmospheric pressure), and the fluid flow It may be possible to prevent Therefore, by providing an opening that is closed with a gas-permeable film or the like, the inside of the fluid storage container can be set to a pressure that is about the same as the atmospheric pressure: the fluid can flow smoothly. '' Industrial applicability

-The fluid transport device and fluid transporter of the present invention can be installed in various mechanical devices, inside the device, or outside the device, and can be used for water, saline, etc. Chemicals: Oils Aromatic liquids, can be used for transporting fluids such as ink and gas. In addition, the fluid transporter alone can be used for fluid flow and supply, but is not limited to this. Brief Description of Drawings

FIG. 1 is a perspective view showing an external appearance of a fluid transporter according to Embodiment 1 of the present invention. FIG. 2 is a plan view showing a fluid transportation device according to Embodiment 1 of the present invention.

FIG. 3 is a cross-sectional view showing a fluid transportation device according to Embodiment 1 of the present invention.

FIG. 4 is a partial plan view showing a fluid transport device ′ according to Embodiment 2 of the present invention. FIG. 5 is a cross-sectional view showing a fluid transportation device according to Embodiment 2 of the present invention. FIG. 6 is a plan view showing the shape of a rotary pressing plate according to Embodiment 2 of the present invention. FIG. 7 is an exploded perspective view showing a fluid transporter according to Embodiment 3 of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, a fluid transport device according to the present invention and a fluid transport device including the fluid transport device will be described. The embodiment described below is only one example of the present invention, and the present invention is not limited to this.

First, Embodiment 1 of the present invention will be described.

1 to 3 show fluid transportation according to Embodiment 1! ^ And fluid transport devices are shown.

FIG. 1 is a perspective view showing an appearance of the fluid transporter according to the first embodiment. In FIG. 1, a fluid transporter 10 is composed of a fluid transporting device 20 that transports fluid by a peristaltic motion, and a pack-shaped fluid storage container 90 that stores fluid. The fluid transport device 20 and the fluid container 90 are communicated with each other by a tube 80.

The fluid storage container 90 is made of a synthetic resin having flexibility, and is formed of a silicon-based resin in the present embodiment. -One end of the fluid storage container 9.0 is provided with a tube holding part 92, and the tube 8.0 is compressed or heated. Welding-ma.-fe is a means of adhesion, etc., fluid: is leaking, and is leaking. ,,

The fluid used in the present invention includes water, saline, chemicals, oils, aromatics, fluids such as ink, and gas.

One end of the tube 80 communicates with the inside of the fluid container 90, passes through the fluid transport device 20, extends to the outside of the fluid transport device 20, and is in the fluid container 90. The fluid contained in the container is transported to the outside by the fluid transport device 20. '

The fluid transport device 20 has a lower lid 8 2, a pump unit frame 3 1, a tube frame 3 2, and an upper lid 8 1 that are stacked one on top of the other and fixed screws 9 5. (In FIG. 1, the upper lid fixing screw is shown) etc. It is integrated by. This fluid transport device 2 0 The rotary extrusion mechanism for transporting the fluid is stored in the interior of the machine. The lower lid 8 2, the pump unit frame 3 1, the tube frame 3 2, the upper lid 8 1, and the fluid storage container 90 are excellent in biocompatibility when the fluid transporter 10 is attached to a living body. It is preferable to employ a synthetic resin such as a material such as polysulfone or urethane. ,

Next, a mechanism for transporting fluid will be described with reference to the drawings. FIG. 2 is a plan view showing a mechanism for transporting the fluid of the fluid transport device 20 according to the present embodiment, and FIG. 3 is a cross-sectional view showing the AA section of FIG. Note that FIG. 2 shows a state in which the upper lid 8 1 is seen through for easy understanding of the explanation. 2 and 3, the fluid transport device 20 has a peristaltic motion to the tube 80 as a basic configuration, and a pump unit 30 as a rotary extrusion mechanism that transports fluid, and a pump unit 3. Pump drive unit 60 for driving 0 and 0. The pump unit 30 and the pump drive unit 60 are stacked in a cross-sectional direction; they are T-configured (see Fig. 3). _

First, the structure and drive of the pump and drive unit 60 will be described. In FIG. 3, the pump drive unit 60 includes a plate-shaped first machine frame 61, a second-machine frame 62, and a first machine frame 63, and is provided between the machine frames. , WD. ': Power: Gives power to the pump, power, power train, power train, and drive circuit for drive control (both (Not shown). '

As the motor, in this embodiment, a step motor employed in a quartz watch or the like is employed, and a coil block 70 is disposed outside the pump unit 30. Although not shown, a stator magnetically joined to the coil block 70 and a rotor are provided inside the stator, and are rotated based on a signal from a drive circuit (not shown). A predetermined drive pattern is stored in advance in the drive circuit, and the step motor is driven by a signal based on this drive pattern.

Although not shown, the battery as a drive circuit and a drive source is arranged in a space formed by the first machine casing 61 and the lower lid 82, and the battery is a coil probe. 70 and the transmission wheel, which will be described later. Further, as described above, since the lower lid 82 is screwed and fixed by the fixing screw 96, the battery can be easily replaced if the lower lid 82 is removed.

The rotation of the rotor is reduced to a predetermined reduction ratio by a plurality of transmission wheels (not shown) and transmitted to the first transmission wheel 71. The transmission first wheel 71 is pivotally supported between a bearing 7 7 provided in the second machine casing 62 and a transmission second axle 7 2 planted in the third machine casing 63. The rotation of the first transmission wheel 7 1 goes through the third transmission wheel 7 3 (not shown), the fourth transmission wheel 7 4 and the fifth transmission wheel 7 5 through the center of the pump boot 30 Is transmitted to the rotating wheel wheel 5 6 located at.

The transmission fourth wheel 7 4 is loosely fitted on the central shaft portion of the transmission second wheel shaft 7 2, and the transmission fifth wheel 7 5 is loosely fitted on the support shaft 6 1 A provided on the first machine casing 61. ing.

In the pump drive unit 60, the first machine frame 61 is screwed and fixed inside the ring-shaped pump unit frame 31 by a fixing screw (not shown), and the second machine frame 6 2 and the third machine frame 6 are connected. 3 are fixedly screwed to the first machine and the frame 61 by fixing screws (not shown), each having a predetermined interval. In this way, the pump drive unit 6'0 is unitized except for the transmission fifth wheel 75. A pop-up unit 3.0 is installed on top of this pump-driven unit 60 _b .

Next, the structure of the pump unit 30 will be described. 2 and 3, the pump unit 30 has, as a basic structure, a rotating plate wheel 56 rotated by a rotational force transmitted from the pump drive unit 60, and a rotating plate. A rotating plate 7 6 that rotates integrally with the car 5 6, four rollers 5 0 5 3 provided on the upper surface of the peripheral portion of the rotating plate 7 6, and eight provided radially from the rotation center of the rotating plate 7 6 The pressing shaft 4 0 4 7 and the tube 8 0 through which the fluid flows are provided.

The rotating plate 76 is made of a disk-shaped plate member, and the rotating wheel wheel 56 is fixed at the center. Rotational force is transmitted from the transmission fifth wheel 75 to this' rotating wheel wheel 56, and the rotating plate 76 rotates around the transmission second wheel shaft 72. Rotating plate The center hole of the car 5 6 is inserted into the transmission second axle 7 2, and the rotary wheel 5 6 is supported by the transmission second axle 7 2 and the bearing 5 7 provided on the upper cover 8 1. ing.

A roller support shaft 5 5 is planted on the outer periphery of the rotary plate Ί 6. Four rollers 55 are provided at equal distances (concentric circles) from the rotation center of the rotating plate 76 and at equal intervals in the plane direction (90 degree intervals). In addition, since the structure which concerns on the roller spindle 55 and the rollers 50-53 is the same structure in four sets, it demonstrates by exemplifying one set. The roller support shaft 5 5 is press-fitted from the lower side of the rotating plate 7 6, and the roller shaft 5 4 is press-fitted into the roller support shaft 5 5 from the opposite side across the rotating plate 7 6.

Further, the roller 50 is inserted into the roller shaft 5: and is locked by the C ring 5 8. The roller 50 has a loose-fitting relationship with the roller shaft 54 and can freely rotate. With the same structure, the rollers 50 to 53 are also arranged at an equal distance from the rotation center of the rotating plate 76. A ring-shaped slide frame 34 is provided on the outer periphery of the rotating plate 76 having these rollers 50 to 53.

'The center of this slide frame 3 4 also coincides with the rotation center of the rotating plate 76, and the position is accurately regulated and fixed by a positioning member (not shown). Screwed onto frame 6.1 (see Fig. 2). In the slide frame 34, eight holes that penetrate from the center radially to the outside are opened, and the pressing shafts 40 to 47 are inserted into the holes, respectively. The pressing shafts 40 to 47 are set to dimensions that can move in the axial direction. Here, the angle formed by the axial center of the pressing shaft 40 and the axial center of the pressing shaft 47 is set to 90 degrees or more.

Since the pressing shafts 40 to 47 have the same shape, the pressing shaft 43 will be described as an example (see FIG. 3). The pressing shaft 4 3 is formed with a hook-shaped pressing portion 4 3 A at one end and a pressing portion 4 3 B rounded into a hemisphere at the other end. The pressing part 4 3 B is pressed by the roller 50 and the pressing part 4 3 A presses the tube 80 against the tube guide wall 3 2 B to squeeze and flow the fluid. It is a structure. When the pressing shaft 4 3 is not in contact with the roller 5 0 5 3 ■ The tube 80 is not pressed (indicated by a two-dot chain line in FIG. 3).

A ring-shaped tube frame 3 2 is further provided on the outer periphery of the slide frame 3 4. The tube frame 3 2 also has a center coincident with the rotation center of the rotating plate 5 7 6 as with the slide frame 3 4. A tube-shaped tube mounting portion 3 2 A for mounting the tube 80 is formed on the inner peripheral portion of the tube frame 3 2. The tube mounting portion 3 2 A and the pressing portion 4 3 of the pressing shaft 4 3 The position of the tube 80 in the plane direction is restricted between the position A and A. In the range where the pressing shaft 40 4 7 does not exist, the tube 80 is formed into the form shown in FIG. 2 by the tube guide groove (not shown) provided in the slide frame 3 4 and the tube frame 3 2. It is installed.

The pressing shaft 40 4 7 extends radially from the rotation center of the rotating plate 76, and the tube guide wall 3 2 B to which the tube 80 is pressed is also concentric with the rotating center of the rotating plate 76. Thus, the tube 80 is pressed in a substantially right angle direction by the pressing shaft 4 0 15 4 7. '"

The slide frame 34 is formed with a tip presser 35 that partially protrudes in the direction of the upper surface of the tube 8'0 so that the tube 80 is not lifted up. —This tube presser. 3 5 is arranged in multiple places between the press shafts 4 0 4 7 to press the tube 8—0 (between three places in Fig. 2). Leaked. 20 '). .

The fluid transport device 20 according to the present embodiment includes the above-described pump drive unit 60 and the pump unit 30 superimposed on each other so that the tube frame 3 2 is fixed to the fixed shaft 33 supported by the pump unit frame. The upper lid 8 1 is passed through and fixed by screwing with fixing screws 9 5. Similarly, the lower lid 8 2 is screwed together by a fixing screw 96 and is integrally formed. Next, the fluid flow action in the present embodiment will be described with reference to FIG. Rotating plate 7 6 Pump f

The drive unit 60 rotates in the direction of fluid flow (in the direction of the arrow in the figure), that is, counterclockwise in this embodiment. The roller 50 will be described as an example. Before the outermost circumference of the roller 50 crosses the pressing shaft 4 0, the pressing shaft 4 · 0 is in an open state. The rotating plate 76 rotates and the pressing shaft 40 moves in the direction of the tube 80 from the position where the outermost circumference of the roller 50 (shown by the locus C in the figure) contacts the end of the pressing shaft 40. , Start pressing tube ◦.

Until the roller 50 touches the pressing shaft 40 and starts pressing, as described above, the angle between the pressing shafts 40 and 47 is set to 90 degrees or more. The shaft 47 is pressed by the roller 51 and closes the tube 80.

Further, when the rotating plate 76 rotates, the roller 50 sequentially presses against the pressing shafts 4 1, 4 2, 4 3. At this time, when the rotation center of the rotating plate 76, the rotation center of the roller, and the axial center line of the pressing shaft become a straight line, the pressing amount becomes maximum, and then the roller gradually moves away from the pressing shaft. The tube 80 is released from the pressing of the pressing shaft. In this way, the motion of pressing the tube 80 sequentially is called a peristaltic motion, and the fluid is transported by squeezing the tube 80 by this peristaltic motion. A device that uses this peristaltic motion to transport fluid is called a peristaltic fluid transport device.

Thus, as the rotating plate 7 6 rotates, the rollers 50 to 53 press the pressing shafts 4 0 to 4 7 one after another, but as described above, the pressing shafts 40 and ..4 Since the angle formed by 7 is 90 degrees or more, at least one of the shafts is pressed and the shaft '8' is closed. : No. ...., ....: .. Also, the rollers 5 0 to 5 3 are opposite to the rotating direction of the rotating plate 7 6 when pressing the pressing shafts 4 0 to 4 7. Since it is rotated by the friction force in the 'direction, that is, in the clockwise direction, the friction force with the pressing shafts 40 to 4 7 is reduced.

In the first embodiment described above, a structure is shown in which four rollers are provided and eight pressing shafts are provided, but the number of rollers and pressing shafts can be arbitrarily selected and provided.

Therefore, according to the first embodiment described above, the pressing shafts 40 to 47 press the tube 80 in a substantially right angle direction, so that the tube 80 is not stretched. Since the fluid flow part does not change, a stable flow rate can be obtained. In addition, since the pressing shafts 40 to 4 7 are pressed by the rollers 50 to 53, the flow rate can be adjusted freely by setting the number of pressing shafts and the stroke as desired. The fluid transport device 20 and the fluid transport device can be easily provided.

In addition, the rollers 50 to 53 rotate in the direction opposite to the rotating direction of the rotating plate 7 6 when pressing the pressings 40 to 47, so the frictional resistance is reduced and the driving force of the rotating plate 7 6 is reduced. Since the generated torque of the motor as the drive source of the rotating plate 76 may be small, it is possible to reduce the size, and from this, the fluid transport device 20 can also be reduced in size. .

Furthermore, since the fluid transport device 20 and the fluid storage container 90 are communicated with each other through the tube 80, the fluid storage container 90 can be easily replaced, and therefore, it is easy to handle. Since the fluid transport device 20 can be used repeatedly, there is also an economic effect.

In this embodiment, when the rollers 50 to 53 are axially supported on the rotating plate 7 6, a structure is adopted in which the roller shaft 5 4 is passed through and locked by the C ring 5 8. It is also possible to adopt a structure in which the shaft 55 is directly passed through the shaft and supported. ,

Next, a fluid transporting device according to embodiment 2 of the present invention will be described with reference to the drawings. Embodiment 2 is the above-described embodiment, where 1 is the mouth, and the structure in which the pressing shaft is pressed against the tube 80, instead of the roller, the rotating pressing plate '1 0 0 The rotary pressing plate 100 is rotated to press the pressing shaft. Therefore, the structure of the rotary pressing plate 100 will be mainly described, the description of other common parts will be omitted, and the same parts as those in Embodiment 1 will be described with the same reference numerals.

FIG. 4 is a partial plan view of the fluid transport device 20 according to the second embodiment, and FIG. 5 is a cross-sectional view showing a BB cross section of FIG. Since the structure of the pump drive unit 60 in the second embodiment is the same as that in the first embodiment, the description thereof is omitted.

5 and 6, a rotary pressing plate 100 (see FIG. 4) having 4 ′ protrusions is provided on the upper surface of the rotary plate 76. Rotating pressure plate 1 0 0 Are mounted using the four roller support shafts 5 5 to which the rollers 50 to 5 3 described in Embodiment 1 (see FIG. 3) are attached as guide shafts. It is locked with. The rotary pressing plate 100 is rotated together with the rotary plate 7 6 with the same rotation center as that of the rotary plate 7 6. The four protrusions described above are pressing portions 10 0 1 to 10 4 that press the pressing shafts 40 to 4 7. The shape and action of the rotary pressing plate Γ 0 0 will be described in detail with reference to FIG.

FIG. 6 is a plan view showing the shape of the rotary pressing plate 1 0 0. In FIG. 6, the rotary pressing plate 100 has four pressing portions 10 0 1 to 10 4 formed on the outer peripheral portion. The pressing portions 1001 to 104 are provided at equal intervals of 90 degrees in the circumferential direction. A hole 10 5 through which the shaft portion of the rotary plate wheel 56 passes is provided at the center, and four holes 10 06 that pass through the roller support shaft 55 are provided at the outer peripheral direction. Yes. Since the pressing parts 1001 to 104 are point-symmetrical with respect to the rotation center G, the pressing part 1001 will be described as an example.

The circular arc 10 8 is formed with a force that is in contact with the pressing shafts 40 to 47 and a diameter having a slight gap when the rotary pressing plate 100 rotates, and presses the pressing shafts 40 to 47. Absent. When the rotary pressing plate 1 0 0 rotates, it gradually starts pressing one of the pressing shafts by the inclined surface 1 0 9, and reaches the maximum at the outer circumference circle ¾ί 1 (rotation locus C of the rotary pressing plate 1 0 0). Reach the press, the rook, and close tube 8. : After that · Further rotation-rotation press plate 1 0 0 turns, slope 1 1 1-43: reach ;, gradually move away from the press shaft, tube 8 0 is closed Is released. At this time, the fluid flows into the tube 80. In this way, the rotary pressing plate. 1 0 0 'gives a peristaltic motion to the pressing shafts 40 to 47 and transports the fluid.

In addition, the recessed part 107 is provided between the adjacent press parts, In the recessed part 107, the press shafts 40-47 are making the state open | released completely. Smoothly between the recess 1 0 7 and the arc 1 0 8, the arc 1 0 8 and the slope 1 0 9, the slope 1 0 9 and the outer circumference arc 1 1 0, and the outer circumference arc 1 1 0 and the slope 1 1 1 It is rounded and formed so as to smoothly press the pressing shaft 4 0 4 7. When the pressing shafts 40 to 47 move away from the rotary pressing plate 100, the tube 80 moves to the rotation center G side due to the elastic force of the tube 80, and the tube 80 is closed. Is the structure.

In addition, as described in the first embodiment, the angle formed between the pressing shaft 4 0 and the pressing shaft 4 7 is set to 90 ° or more, so that the adjacent pressing portions of the rotary pressing plate 100 are adjacent to each other. Either block the tube 80.

Therefore, according to the above-described second embodiment, the friction resistance when pressing the pressing shafts 40 to 47 is slightly larger than that of the structure including a plurality of the single rollers in the first embodiment described above, but the rotation Since the same driving can be performed with only one pressing plate 100, the structure can be simplified.

Furthermore, if the number and shape of the pressing parts are prepared in several ways, the fluid flow rate can be easily changed by replacing the rotating pressing plate according to the desired fluid flow rate. effective.

In Embodiment 2 (see FIGS. 4 and 5), the rotary pressing plate 100 is mounted on the roller shaft 5 4 as a guide shaft, but directly mounted on the roller support shaft 5 5. In addition, the object of the present invention can be realized even if the four nozzles' shafts or the roller support shafts are two diagonal pairs (one pair).

In addition, the rotating and pressing plate 1.0 and the rotating plate 7 6 are integrally formed, and the roller 5 0 as in the first embodiment. ~ 5 3 ^ In response to this, it is possible to adopt a structure including four rotating pressing plates, or a rotating pressing plate including two or three pressing portions.

In this way, the structure of the fluid transport device 20 can be simplified, and the cost can be reduced. Subsequently, Embodiment 3 of the present invention will be described with reference to the drawings. In Embodiment 3, the fluid transporter 10 in Embodiments 1 and 2 described above is provided with a fluid transporting device 20 and a fluid container 9 0 ′ as separate bodies, which are communicated with each other through a tube 80. The structure of the third embodiment is characterized in that the fluid transport device and the fluid storage container are provided integrally in the housing. The '

FIG. 7 is an exploded perspective view showing the fluid transporter according to the third embodiment. The same parts as those in Embodiments 1 and '2 will be described with the same reference numerals. In FIG. 7, the fluid transporter 10 has a fluid transporting device section 20 0 and a fluid storage section 190 inside a housing having a bowl-like shape in plan view. The housing is composed of a case 1 8 2 corresponding to the lower lid according to the first and second embodiments and an upper lid 1 81, and is screwed and fixed by fixing screws 9 5 (four in FIG. 7).

Case 1 8 2 is formed with two parallel recesses, one of which is provided with a pump unit 30 and a pump drive unit (not shown), and the other recess is provided with a fluid containing part 1 90 is formed. The fluid container 1 90 and the pump unit 30 are communicated with each other through a tube 1 80. One end 1, 9 2 of the tube 1 8 0 passes through the fluid containing part 1 90, and partway passes through the outer periphery of the pump unit 30 and the other end extends outside the fluid transporter 10. ing. ,.

The pump unit 30 has the same structure as that of the first and second embodiments described above, and transports fluid by the peristaltic motion of the pressing shafts 40 to 47 (see FIGS. 2 to 6). Structure. ''

Packing (not shown) shall be provided at the communicating part of one end 1 9 2 of the tube 1 8 0, the case 18.2 and the top cover, 1 8 1 and. Body part 1.9 From the beginning ... The fluid is prevented from leaking into the pump unit 30. It is desirable that the fluid storage unit 1 90 be provided with an opening that is closed with, for example, a breathable film so that the pressure is approximately equal to the external pressure when the upper lid 1 8 1 is attached. '

In addition, the upper lids 1 8 and 1 and the case Γ 8 2 can be fixed by heat welding or adhesive bonding, in addition to screwing.

Therefore, according to the above-described Embodiment 3, the pump boot 30 and the fluid storage section 190 are arranged so as not to overlap with each other, so that the size can be reduced without increasing the thickness. Can be used. In addition, since the pump unit 30 and the fluid housing part 190 are formed as a single casing, the cost can be reduced. Can be reduced.

It should be noted that the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention. For example, in Embodiments 1 to 3 described above, the fluid flow amount (transportation amount) can be set by the number of rollers, the number of pressing portions of the rotating plate, and the like. It is also possible to store multiple pieces of information that can arbitrarily select the rotational speed of 7 6 and select the rotational speed. In addition, the information to drive the rotational 7 6 intermittently is stored and fluid is intermittently stored. Can be made to flow.

Therefore, according to Embodiments 1 to 3 described above, it is possible to provide a thin and small fluid transport device that maintains a stable fluid flow rate and a fluid transport device including the fluid transport device.

Claims

The scope of the claims

1. a tube having elasticity, a tube frame having a tube guide wall for mounting the tube in an arc shape, a rotating plate disposed inside the tube, and a plurality of radially disposed between the tube and the rotating plate A plurality of rollers arranged on the upper surface of the rotating plate at equidistant intervals with respect to the rotation center of the rotating plate, and the arc center of the tube guide wall and the rotating plate The rotation centers of the plurality of pressing shafts coincide with the radial centers of the plurality of pressing shafts, and the plurality of rollers sequentially press the plurality of pressing shafts from the inflow side to the outflow side of the fluid. A fluid transport device characterized by flowing.

2. 'In the fluid transport device according to claim 1,

A fluid transporting device, wherein at least one of the plurality of pressing shafts closes the tube.

3. a tube having elasticity, a tube frame having a tube guide wall for mounting the tube in an arc shape, a rotating plate disposed inside the tube, and a plurality of radially disposed between the tube and the rotating plate And a plurality of rollers arranged on the upper surface of the rotating plate at equal intervals on a concentric circle with respect to the rotation center of the rotation plate, and the arc center of the tube guide wall and the rotation plate The rotation center and the plurality of pressing shafts radiate i coincide with each other, and the plurality of rollers sequentially press the plurality of pressing shafts to flow the fluid from the fluid inflow side to the outflow side. A fluid transporter characterized in that a fluid transport device and a fluid storage container for storing a fluid are communicated by the tube.

4. In the fluid transport device according to claim 3,

The fluid transporter, wherein the fluid transport device and the fluid container are formed in parallel in a planar direction in a housing. '

5. In the fluid transport device according to claim 4,

An fluid transporter comprising an opening for conducting the inside and outside of the fluid container, and a gas permeable film attached to the opening. '