JP2005351131A - Fluid transport device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a small fluid transport device capable of being stably driven over a long period while reducing running cost. <P>SOLUTION: This fluid transport device 10 has a vessel 30 sealed with fluid, a vessel unit 20 having a freely deformable flexible tube 35 communicating with the inside of the vessel 30, a rod 61 as a pressing mechanism for applying vermicular motion for compressing the tube 35 and a case 40 for holding these, a cam mechanism 130 and a motor 150 as a driving mechanism for driving the rod 61, a driving unit 100 having a machine frame 110 for holding the cam mechanism 130 and the motor 150, and a fixing arm 115 as an attaching-detaching mechanism of the vessel unit 20 and the driving unit 110. Thus, the device can be stably driven over a long period while reducing the running cost. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a structure of a fluid transportation device.

  Conventionally, in a rotary roller peristaltic pump having a motor body as a drive source and a cassette comprising a rotary roller driven by a drive shaft of the motor main body and squeezing a deformable tube, the drive shaft has a rotary roller. A peristaltic pump having a base capable of occupying a driving position and a position where the rotating roller is fixed, and at least one finger-like member provided at a lower portion of the cassette for changing the base from a stationary position to an operating position It is known (see, for example, Patent Document 1).

JP 7-509032 A (4th page, FIG. 5, FIG. 6)

In Patent Document 1, such a peristaltic pump is used because a pump main body, a motor main body, and a cassette main body are combined and integrated, but does not have a mechanism for separating them. When a fluid (for example, a chemical solution) is replaced or when the fluid runs out, it is necessary to replace the entire peristaltic pump, and there is a problem that the running cost becomes high.
Further, in such a rotary roller pump, the tube pressed by the rotary roller is in a state of being constantly pressed and deformed, so in a case where the state is maintained for a long time, the tube is pressed. It is predicted that it will be deformed and cannot be reused.

  An object of the present invention is to provide a fluid transportation device that can reduce the running cost and can be stably driven over a long period of time.

The fluid transport device according to the present invention includes a container in which a fluid is sealed, a deformable flexible tube communicating with the inside of the container, a pressing mechanism that gives a peristaltic motion to squeeze the tube, and a case for holding these A second unit comprising: a first unit comprising: a drive mechanism for driving the pressing mechanism; and a machine frame for holding the drive mechanism; the first unit and the second unit; And an attaching / detaching mechanism.
Here, examples of the fluid include fluids such as water, oils, medical chemicals, aromatic liquids, and inks, and gases.

  According to this invention, since the attachment / detachment device for attaching / detaching the first unit including the container, the tube, and the pressing mechanism and the second unit including the driving mechanism is provided, when the fluid in the container is finished Also, when changing the type of fluid, the first unit and the second unit can be disconnected and removed, and if only the first unit is replaced, the second unit can be used repeatedly. There is an effect that the cost can be reduced.

  In the above-described structure, it is preferable that the pressing mechanism and the driving mechanism are engaged and the tube is squeezed only when the first unit and the second unit are coupled.

  According to such a structure, when the first unit and the second unit are not coupled, the tube is not pressed because the tube is not pressed. The first unit can be stored over time.

  Moreover, it is preferable that the said attachment / detachment mechanism is provided with the latching mechanism which attaches / detaches the said 1st unit and the said 2nd unit.

  According to such a structure, since the first unit and the second unit can be coupled by being latched and can be detached by releasing the latch, the detachment operation can be easily performed.

In addition, when the first unit and the second unit are coupled to the attachment / detachment mechanism, a first position where the pressing mechanism and the driving mechanism are engaged, the pressing mechanism, and the It is preferable to have a latching mechanism that regulates the second position where the drive mechanism is disengaged.
Here, the first position refers to the state of the coupling position between the first unit and the second unit when driving the fluid transport device. As the second state, the fluid transport device is stopped driving. It shows the state of the coupling position of the first unit and the second unit when

In such a structure, in the state of the second position, since the engagement between the pressing mechanism and the driving mechanism is released, the tube is not pressed, so that the driven portion of the tube is deformed during the driving pause. Even if the pause time is long, the fluid can be transported with a predetermined performance when the driving is resumed.
Since the two states of the first position and the second position exist when the first unit and the second unit are coupled, the latching mechanism is operated to operate the first unit and the second unit. The unit can be easily switched between start and stop by simply moving to the second position when the fluid transport device is to be paused, and to the first position when being driven without being completely separated from the unit.

In addition, the latching mechanism may be configured such that the first unit and the second unit are placed in the first position, or the first position and the second position in either the case or the machine casing. It is preferable to provide the latching | locking part or to-be-latched part to couple | bond.
Such a latching mechanism is constituted by a latching part or the like in which the latched part is latched on the latching groove and the latching part is latched on the latching groove, for example.

  According to such a structure, the first unit and the second unit can be attached and detached simply by hooking the latching portion to the non-latching portion, and can be configured with a simple structure. Further, in such a structure, the latch can be easily released, and the switching (movement) to the first and second positions described above can be easily performed.

  Moreover, it is preferable that the said press mechanism has a some press part which is driven by the said drive mechanism and gives the peristaltic motion which squeezes the tube sequentially toward the downstream from an upstream side.

  According to such a structure, since the pressing portion performs a peristaltic motion to squeeze the tube, a pressing mechanism with a small volume can be provided, and thus a small fluid transport device can be provided.

  Moreover, it is preferable that the said several press part is comprised with the rod which can be driven independently.

  In such a structure, since the plurality of rods are formed and driven independently, the tube is selected when the size of the fluid transportation device of the present invention is selected according to the type, flow rate, flow rate, etc. of the fluid to be used. There is an effect that the degree of freedom of setting such as the shape of the portion that presses, the pitch between the rods, and the distance to the drive mechanism described above can be expanded.

  Moreover, it is preferable that the plurality of pressing portions are formed in a comb-teeth shape in which one end portion is continuous.

Thus, the pressing portion is formed in a comb-like shape and is integrally formed, and the comb-like pressing portion is sequentially squeezed by the above-described driving mechanism, so that the structure can be simplified and the cost can be reduced. As a result, it is possible to reduce running costs such as replacement of the first unit including the pressing portion.
In addition, since the pressing portion is comb-shaped, the distance between the pressing portion and the driving mechanism can be shortened, so that the structure is suitable for a small fluid transport device.

Moreover, it is preferable that the drive mechanism includes at least a cam mechanism that drives the pressing mechanism and a drive unit that drives the cam mechanism.
Here, for example, a DC motor, an AC motor, a piezoelectric actuator, or the like can be employed as the drive unit.

  In this case, since the drive mechanism includes the cam mechanism and the motor as the drive unit, the drive mechanism can function as the drive mechanism in the second unit, and the structure can be simplified. There is. Furthermore, the accuracy of the positional relationship between the cam mechanism and the motor can be increased, and a stable driving force can be transmitted to the pressing mechanism.

In the present invention, it is preferable that the cam mechanism and the driving unit are spline-coupled.
Note that spline coupling refers to a mechanism in which grooves of various shapes are provided in the axial direction, and a driving force is transmitted by engaging protrusions corresponding to the grooves. In the present invention, engagement by gears is included.

  In such a structure, the cam mechanism and the drive unit are spline-coupled, so the influence of the cam mechanism and drive unit shaft in the planar direction and the effect of the distance between the shafts are reduced, and a stable drive force is transmitted. can do. Moreover, there is an effect that the space of the coupling portion can be reduced.

In the fluid transport device of the present invention, either the first unit or the second unit is provided with a stopper mechanism that closes the flow path of the tube on the downstream side of the pressing mechanism of the tube. It is preferable.
Here, the direction close to the container is referred to as the upstream side, and the direction far from the container is referred to as the downstream side.

  According to the structure of the present invention, the first unit and the second unit are detachable structures. Therefore, for example, when the first unit and the second unit are separated, the tube is released from the pressing portion, so that the fluid in the tube may flow out of the tube. However, since the tube flow path is blocked by the stopper mechanism, the fluid can be prevented from flowing out of the tube.

  Further, the stopper mechanism opens or connects the tube when the first unit or the second unit moves to the first position and moves to the second position. It is preferable to close the flow path by pressing the tube when is released.

  That is, this stopper mechanism opens the tube when the first unit and the second unit are mounted at the first position where they can be driven, and closes the flow path when moved to a position where they are not driven. The user does not have to perform operations for opening and closing the tube, and the handling becomes easy.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 11 show a fluid transportation device according to a first embodiment of the present invention, FIGS. 12 to 15 show a second embodiment, FIG. 16 shows a third embodiment, and FIGS. 17 to 19 show a fourth embodiment. FIG. 20 shows a fifth embodiment, and FIG. 21 shows a sixth embodiment.

1 to 11 show a fluid transport device according to a first embodiment.
FIG. 1 is a front view showing the configuration of the fluid transportation device 10 of the first embodiment, and in order to easily understand the internal structure, a lid 80 described later (see FIG. 7) is removed and shown in FIG. The BB cross section is visually recognized in the arrow direction. In FIG. 1, the fluid transport device 10 of the first embodiment includes a container unit 20 as a first unit and a drive unit 100 as a second unit as a basic configuration, and the container unit 20 and the drive unit 100. Is a detachable configuration, and FIG. 1 shows a separated state where they are not coupled to each other.

  The container unit 20 holds a container 30 in which a liquid is stored, a tube 35 that communicates the inside and outside of the container, a pressing mechanism 60 that squeezes the tube 35, a stopper mechanism 90 that closes the tube 35, and the like. And a case 40 to be configured.

  The container 30 is formed with a pack-shaped liquid storage portion 31, and a tube 35 is extended from an end portion on the drive unit 100 side. The liquid storage portion 31 and the tube 35 are formed of a silicon-based resin having deformable flexibility. The tube 35 is bent along a tube insertion groove 42 provided in the case 40 by being bent in a crank shape from an inflow port 36 inside the joint with the liquid storage unit 31 to an outflow port 37 for flowing the liquid to the outside. ing.

The inner surface of the inlet 36 of the tube 35 and each corner bent in a crank shape are connected with a smooth arc to reduce the fluid resistance of the fluid.
The liquid storage unit 31 is stored in the container storage unit 41 of the case 40.

  The case 40 is formed in a lunch box shape having a substantially rectangular outer shape (see also FIG. 7), and a rod group 61 as a pressing portion constituting the pressing mechanism 60 is inserted into an end portion on the drive unit 100 side. (Hereinafter, the rod group 61 may be simply referred to as the rod 61). The pressing mechanism 60 will be described in detail later with reference to FIGS. 2 and 10. A stopper mechanism 90 that presses and closes the tube 35 is mounted on the downstream side of the pressing mechanism 60. The structure of the stopper mechanism 90 will be described later with reference to FIGS.

  In the figure of the case 40, a pair of lid body latching portions 52 having recesses for latching the lid body 80 are formed on the left and right side surfaces of the peripheral edge portion 51, and the drive unit 100 is hung on the container unit 20. A pair of latching grooves 49 and a latching groove 50 for coupling are formed. The retaining groove 49 is a first position where the pressing mechanism 60 and the cam mechanism 130 are engaged and the rod group 61 presses the tube 35 when the drive unit 100 and the container unit 20 are coupled. The latching groove 50 is a latching groove that regulates the second position in which the pressing mechanism 60 and the cam mechanism 130 are not engaged with each other.

  A guide groove 55 through which a later-described latch arm 117 is inserted is formed from both end surfaces 53 to the end of the latch groove 49 on both side surfaces of the case 40 where the aforementioned latch grooves 49 and 50 are formed. Yes.

Drive unit guide holes 44 and 45 for coupling the drive unit 100 are formed on the end surface 53 of the case 40 that contacts the machine frame 110 constituting the drive unit 100 with the pressing mechanism 60 and the stopper mechanism 90 interposed therebetween. Furthermore, a stopper push-up pin guide hole 46 is formed toward the stopper mechanism 90 with the tube 35 sandwiched in the cross-sectional direction.
The case 40 is formed from a synthetic resin having rigidity. A hole 54 formed in the upper portion of the case 40 in the drawing is a hanging hole used when the fluid transporting device 10 is suspended on a support base or the like (not shown).

  FIG. 2 is a cross-sectional view showing the pressing mechanism 60 according to the first embodiment and viewing the DD cross section shown in FIG. 1. In FIG. 2, one of the rod groups 61 as the pressing portion is described as the rod 61. The rod 61 is formed with a flange portion 64, a cam contact portion 63 having a rounded tip that contacts the cam group 132, and a tube pressing portion 62 that presses the tube 35, and the flange portion 64 is attached to the case 40. It is inserted into the provided rod groove 56. The rod groove 56 and the flange portion 64 have a loose fitting relationship that can move in the longitudinal direction of the flange portion, and the tube pressing portion 62 is smoothly rounded so as not to be damaged when the tube 35 is pressed.

The tube 35 is inserted into the tube insertion groove 42 of the case 40, and the movement of the tube 35 is restricted by a part of the lid 80 so as not to deviate from the pressing range of the tube pressing portion 62.
In FIG. 1 described above, since the container unit 20 and the drive unit 100 are separated from each other, no driving force is applied to the rod 61 from the cam mechanism 130. Therefore, there is a gap between the tube 35 and the rod 61. Yes.

Next, the stopper mechanism 90 according to the first embodiment will be described in detail with reference to FIG.
FIG. 3 is a cross-sectional view of the stopper mechanism 90 taken along the line CC (see FIG. 1) when the container unit 20 and the drive unit 100 shown in FIG. 1 are separated. In FIG. 3, the stopper mechanism 90 is inserted through a stopper insertion hole 59 provided at a position where the fixed shaft 93 intersects the tube 35 of the case 40.

  The stopper mechanism 90 includes a tube pressing portion 92 that presses the tube 35, a flange portion 94 for pushing up the stopper mechanism 90, a fixed shaft 93 having a circular cross section, and a C-ring hooking portion 93A at the tip of the fixed shaft. 91 and a coil spring 96 that presses the stopper 91 until the tube 35 is closed. The tube pressing portion 92 is formed so as to protrude from the flange portion 94, and the tip portion contacting the tube 35 is smoothly rounded so as not to damage the tube.

The stopper 91 has a fixed shaft 93 inserted into a stopper insertion hole 59 provided in the case 40, and a C-ring 95 is mounted on the C-ring hooking portion 93A at the tip, thereby restricting the amount of movement in the axial direction. . A coil spring 96 is mounted between the flange portion 94 and the wall of the case 40 in which the stopper insertion hole 59 is formed, and the tube 35 is pressed and closed by the elastic force of the coil spring 96.
Further, the case 40 is provided with stopper push-up pin guide holes 46A and 46B that are viewed from the end surface 53 that is the end surface on the drive unit 100 side, and protrudes from a machine frame 110 of the drive unit 100 described later. A pair of machine frame guide pins 113 are inserted (see FIGS. 1 and 6).

Next, the structure of the drive unit 100 will be described with reference to FIG. In FIG. 1, a drive unit 100 supplies a power to a motor 150 having a built-in cam mechanism 130 as a drive mechanism for driving the above-described pressing mechanism 60 and a speed reduction mechanism as a drive unit, and a motor 150 as a basic configuration. The battery 160, a control unit 170 including a switch 180 that performs drive control and drive ON / OFF of the motor 150, and a machine frame 110 that holds these components are configured.
The motor 150, the battery 160, and the control unit 170 are connected by a lead wire or the like (not shown).

The machine casing 110 is a cam mounting part 111 provided with a concave space in which the cam mechanism 130 is mounted, and a part of the cross section provided on the axis of the cam mechanism 130 is a concave space having an arc shape. A motor mounting portion 112 is formed. In addition, machine frame guide pins 113 are formed at both end portions of the end surface facing the container unit 20 described above, and further, the stopper push pins are positioned at positions corresponding to the stopper push-up pin guide holes 46A and 46B provided in the case 40. Raising pins 122 and 123 are formed.
The engagement relationship between the cam mechanism 130 and the motor will be described later in detail with reference to FIGS.

  The tube guide hole 114 into which the tube 35 attached to the container unit 20 is inserted penetrates from the container unit side end surface to the outer end surface. The tube guide hole 114 may be formed with a groove in the same manner as the case 40 to mount the tube 35.

On both side surfaces of the machine frame 110 in the lateral direction, latching arms 115 as a latching mechanism for coupling the container unit 20 and the drive unit 100 are formed toward the container unit 20.
The latch arm 115 includes a latch arm portion 117 and an operation arm portion 120, and is continued by a neck portion 124 having a constricted portion. The latching arm portion 117 and the operation arm portion 120 initially have a gap as shown by a two-dot chain line in the figure, but by operating once, a solid line The operating arm 120 is deformed at the position shown by the neck 124 described above.
In addition, since the latching arm 115 is comprised by the pair of left-right symmetric shape, one latching arm 115 is demonstrated as a representative example.

  The base portion of the latching arm portion 117 has a guide portion 116 for accurately securing the mutual position in the lateral direction when the container unit 20 and the drive unit 100 are coupled, and the distal end portion is the first portion of the case 40. A latching portion 118 that engages with the latching groove 49, the second latching groove 50, and a slope 119 are formed. Between the guide part 116 and the latching part 118, the collar part which has elasticity is formed. The thickness of the latching arm portion 117 is set within a range in which the latching arm portion 117 can slide in the guide groove 55 of the case 40 including the latching portion 118. The latching portion 118 is formed at a right angle to the flange portion, and can be reliably engaged with the latching grooves 49 and 50. The slope 119 is set at an angle that allows the vehicle to smoothly ride on and be mounted on the corner of the case 40.

  In the middle of the operation arm portion 120 in the longitudinal direction, a protruding portion 121 that protrudes into contact with the latching arm portion 117 and serves as a fulcrum when the latching portion 118 is disengaged from the latching grooves 49 and 50 is projected. ing. The disengagement will be described in detail with reference to FIG.

Next, the structure of the cam mechanism 130 and the motor 150 will be described with reference to FIGS. 4 and 5.
4 is a partial front view showing the cam mechanism 130 and the motor 150 of the drive unit 100, FIG. 5A is a partial sectional view viewed from the arrow B direction, and FIG. 5B is viewed from the arrow A direction. A partial side view is shown. 4 and 5, the cam mechanism 130 is composed of a plurality of cams (represented as a cam group 132) and a cam shaft 131. In the first embodiment, the cam group 132 is composed of eight sheets, and is about 45 degrees. The cam shaft 131 is coaxially fixed with a phase difference. Both end portions of the cam shaft 131 are inserted into a bearing portion 126 provided in the machine casing 110, and one end portion projects through the bearing portion 126. A gear 133 is formed at the protruding tip, and meshes with an internal gear 152 formed inside the power transmission unit 151 fixed on the rotation shaft of the motor 150.
In this way, the driving force (rotational force) of the motor 150 is transmitted to the cam mechanism 130, and the cam mechanism 130 is rotated.

The motor 150 is inserted into the motor mounting portion 112 provided in the case 40 along the groove of the motor mounting portion 112 from the outside in the axial direction (in FIG. 5A, from the position indicated by the two-dot chain line toward the arrow direction. And the internal gear 152 and the gear 133 formed on the cam shaft 131 are moved to a position where they mesh with each other, and the motor fixing plate 140 is pressed and fixed by the fixing screw 145.
The driving of the cam mechanism 130 and the pressing mechanism 60 will be described later (see FIG. 10).

  Next, a method for connecting the container unit 20 and the drive unit 100 will be described. In FIG. 1, when the drive unit 100 is moved toward the container unit 20 (in the direction of the arrow in the drawing), first, the slope 119 of the latching arm 115 lifts up the corner portion of the case 40, along the guide groove 55. It moves in the direction of the retaining grooves 49, 50. Here, when the latching portion 118 reaches the vicinity of the second latching groove 50, the front end portions of the machine frame guide pin 113 and the stopper push-up pins 122 and 123 are respectively formed in the drive unit guide holes formed in the case 40. 44, 45 and the stopper push-up pin guide holes 46A, 46B. When the drive unit 100 is further pushed up in the direction of the container unit 20, the latching portion 118 gets over the second latching groove 50 and enters the first latching groove 49 to complete the coupling.

  6 and 7 are a front view and a cross-sectional view showing a state in which the container unit 20 and the drive unit 100 are combined. 6 shows the fluid transport device 10 visually recognizing the BB cross section shown in FIG. 7, and FIG. 7 is a cross sectional view visually recognizing the AA cross section shown in FIG. The connecting portion between the container unit 20 and the drive unit 100 will be described in detail, and the individual components are the same as those described above (shown in FIG. 1 to FIG. 5), so the description thereof is omitted and the reference numerals are the same. 6 and 7, the container unit 20 is configured such that a latching portion 118 of a latching arm 115 provided on the machine frame 110 of the drive unit 100 is latched in a latching groove 49 formed in the case 40. 100.

  At this time, the two machine frame guide pins 113 are inserted into the drive unit guide holes 44 and 45, and the positions of the container unit 20 and the drive unit 100 in the plane direction and the cross-sectional direction are accurately regulated. The two stopper push-up pins 122 and 123 are inserted into the stopper push-up pin guide holes 46A and 46B, respectively, and push up the stopper 91 to the blocking release position of the tube 35. The structure of the stopper mechanism 90 at this time will be described later in detail with reference to FIG.

  The cam mechanism 130 and the pressing mechanism 60 are in contact with each other, and the cam groups 132 of the cam mechanism 130 press the corresponding rod groups 61 toward the tube 35 side. Therefore, by driving the motor 150, the cam mechanism 130 is rotated, the rod group 61 is oscillated, and the tube 35 is squeezed. Detailed structures and operations of the cam mechanism 130 and the pressing mechanism 60 will be described in detail with reference to FIG. The container unit 20 and the drive unit 100 are uncoupled by operating the operation arm portion 120 of the latch arm 115.

  Next, the release of the connection between the container unit 20 and the drive unit 100 will be described. In FIG. 6, when the distal end of the operation arm 120 is pushed toward the machine frame 110 (in the direction of the arrow in the figure), the hook 118 rotates outward with the protrusion 121 as a fulcrum, and the engagement with the hook groove 49. When the coupling is released and the container unit 20 and the drive unit 100 are separated, the coupling is released.

  Subsequently, the cross-sectional structure of the fluid transport device 10 will be further described with reference to FIG. In FIG. 7, as described above, eight cams 132 in the first embodiment are each inserted into the camshaft 131 with a phase difference of 45 degrees. As for the shape of the cam 132, the maximum radius portion is provided in the range of 45 degrees around the cam shaft 131, and the minimum radius is also provided in the range of 45 degrees in the substantially diagonal direction. The outer peripheral part that is continuous with a smooth arc and the part where the maximum radius part and the minimum radius part are connected in a straight line in the central direction are formed between the parts, and the case where the part rotates in the direction of the arrow is correct. When rotating, the rod 61 is pressed during forward rotation, and during reverse rotation, when the rod 61 hits the linear portion of the cam 132 described above, it becomes a brake and the cam 132 does not rotate. Yes.

  The lid 80 is inserted in a state where the container unit 20 and the drive unit 100 are coupled. The lid 80 closes the container unit 20 and the drive unit 100, and holds the positions of the container 30, the tube 35, and the rod group 61 in the cross-sectional direction. On the inner side of the lid 80, protrusions 81 are formed in accordance with the shapes of the components held by the lid 80 described above. The control unit 170 built in the drive unit 100 is provided with a switch 180 for operating driving ON / OFF of the motor. A part of the switch 170 protrudes from a hole provided in the lid body 80, and the upper surface of the lid body 80. The switch can be operated from

Although not shown, the control unit 170 includes a motor drive control circuit and an operation unit, and the motor 150 and the battery 160 are connected by lead wires. The control unit 170 controls at least the drive and stop control of the motor 150, the rotation speed, and the drive time so that the fluid can be transported at a predetermined flow rate, speed, and time. Although the operation is performed, the switch 180 (refer to FIG. 1) for driving and stopping in the operation unit is disposed on the upper surface of the lid body 80, and the rest are stored inside the lid body 80.
The lid insertion structure will be described later with reference to FIG.

Next, the state of the stopper mechanism 90 when the container unit 20 and the drive unit 100 are coupled will be described with reference to FIG.
FIG. 8 is a partial cross-sectional view showing a state in which the stopper mechanism 90 has released the blockage of the flow path 38 of the tube 35. Since the components are the same as those in FIG. 3 described above, the description thereof is omitted and the same reference numerals are given. In FIG. 8, the stopper mechanism 90 moves to a position where the hook 94 is pushed up by the stopper push-up pins 122 and 123 formed on the machine frame 110 of the drive unit 100 and the blockage of the flow path 38 of the tube 35 is released. Is done. At this time, the tube 35 returns to the state before being closed by its own elastic force, and the fluid can flow. If the closed state continues for a long period of time, the shape may not be restored completely. However, since the pressure of the liquid is increased by the peristaltic motion of the pressing mechanism 60, the tube on the downstream side is expanded and the fluid flows. can do.

Next, a structure in which the lid 80 is inserted into the case 40 and the machine casing 110 will be described with reference to the drawings.
FIG. 9 is a partial cross-sectional view showing the insertion structure of the lid body 80. Since the insertion structure of the lid 80, the case 40, and the machine casing 110 is the same, the case 40 side will be described as a representative example. In FIG. 9, a latching arm 82 extending in the thickness direction of the case 40 is formed on the side surface of the lid 80, and a hook-shaped latching portion 83 is provided at the tip. The case 40 and the machine frame 110 are formed with lid body latching portions 52 and 57 (see FIG. 6), and the latching portion 83 of the lid body 80 is engaged with the lid body latching portions 52 and 57 of the case 40. It can be hooked by doing. When detaching, it can be easily removed by releasing the engagement of the latching portion 83.

Next, the operation of the pressing mechanism 60 will be described with reference to FIG.
FIG. 10 is a partial front view showing the operation of the pressing mechanism 60. Since the components are described above, the operation will be described. The cam group 132 includes eight cams 132A to 132H having substantially the same shape, and each cam is fixed to the cam shaft 131 in a state where the phases are sequentially shifted by 45 degrees. The rod group 61 as a pressing portion is composed of rods 61A to 61H corresponding to the cams 132A to 132H, and is arranged so as to contact the side surfaces of the cams 132A to 132H. The planar shapes of the cams 132A to 132H are formed so that the distance gradually changes from the center of the cam shaft 131 (see FIG. 7). When the cam group 132 is rotated by the motor 150, the rods 61A to 61H are sequentially tubed. Move in 35 directions and perform peristaltic motion.

  The tube 35 is sequentially pressed by the rods 61A to 61D, and at this time, the flow path 38 of the tube 35 is sequentially squeezed. The rods 61E to 61H do not press the tube 35. Thereafter, by sequentially pressing the rods 61E, 61F, 61G, 61H and the tube 35, the fluid is compressed and flows out of the fluid transporting apparatus 10.

Next, a state where the container unit 20 and the drive unit 100 described above are coupled to the second position will be described with reference to the drawings.
FIG. 11 is a main part front view showing a state in which the container unit 20 and the drive unit 100 are coupled to the second position. Since the components are described in detail in FIG. 1, the relationship between the container unit 20 and the drive unit 100 in the second coupled state will be described. In FIG. 11, the latching portion 118 formed on the latching arm 115 provided on the machine frame 110 constituting the drive unit 100 is a second latching groove 50 formed on the case 40 constituting the container unit 20. It is locked on.

At this time, the pressing mechanism 60 and the cam mechanism 130 are separated from each other, and the driving force from the cam mechanism 130 is not transmitted to the pressing mechanism 60. Further, the machine frame guide pin 113 and the stopper push-up pins 122 and 123 are inserted into the entrance portions of the drive unit guide holes 44 and 45 and the stopper push-up pin guide holes 46A and 46B provided in the case 40, respectively. Again, when moving to the first position, a relationship that allows smooth coupling is maintained.
At this time, since the stopper mechanism 90 is disengaged from the stopper push-up pins 122 and 123, the stopper mechanism 90 is biased toward the tube 35 by the coil spring 96 and closes the flow path. Is not transported.

  In addition, the slope 119 continuously formed on the latching portion 118 of the latching arm 115 is in contact with the outer corner of the second latching groove 50, and when the drive unit 100 is further pushed up to the container unit 20 side. The hook arm 115 is deformed outward by the inclined surface 119, reaches the first hook groove 49, and can move to the first position.

  The state of being coupled to the second position described above is a shape in which the tube 35 is closed by releasing the pressing of the tube 35 by the rod group 61 when the drive of the fluid transport device 10 is temporarily stopped. To prevent the predetermined fluid from being transported, and when re-driving, the container unit 20 and the driving unit 100 can be easily coupled immediately to start driving. The purpose is to configure the state to do.

  Therefore, according to the first embodiment, the container unit 20 including the container 30 that contains the fluid, the tube 35, and the pressing mechanism 60, the drive unit 100 including the cam mechanism 130 and the motor 150, and the container unit 20 are provided. The drive unit 100 can be attached and detached, so that when the fluid in the container 30 is finished or when the type of fluid is changed, the container unit 20 and the drive unit are disconnected and removed, and only the container unit is removed. If replaced, the drive unit 100 can be used repeatedly, so that there is an effect that the running cost can be reduced.

  Further, when the container unit 20 and the drive unit 100 are not coupled, the blocking of the tube 35 by the stopper mechanism 90 is released, so that the tube 35 is not deformed into a closed state, and the tube 35 is not deformed for a long time. A predetermined fluid transport capability can be maintained, and the container unit 20 can be stored in a state in which the fluid is stored for a long time.

In the first embodiment, the coupling between the container unit 20 and the drive unit 100 includes a first position when the fluid transport device 10 is being driven and a second position when the fluid transport apparatus 10 is at rest. ing. In the second position, since the engagement of the pressing mechanism 60 and the cam mechanism 130 is released, the tube 35 is not pressed, so that the tube 35 is not deformed into a closed state during the drive suspension. Even when the pause time is long, the fluid can be transported with a predetermined performance when the driving is resumed.
Furthermore, the movement from the second position to the first position only needs to push the container unit 20 or the drive unit 100 into the other side, and can be easily driven.

  Further, in the first embodiment, the machine frame 110 constituting the drive unit 100 is provided with the latching arm 115, and the latching portions 118 of the latching arm 115 are placed in the latching grooves 49 and 50 of the case 40 constituting the container unit 20. The container unit 20 and the drive unit 100 unit can be easily attached and detached by hooking or releasing, and in addition, the first position (drive state) and the second position (drive stop state) described above. (Moving) can be easily performed. Further, since the latch arm 115 can be formed integrally with the machine casing 110, the manufacturing cost can be reduced.

  Further, the rod group 61 as the pressing portion is driven by the cam group 132 and has a structure in which the tube 35 is squeezed by a peristaltic movement that sequentially squeezes the tube 35 from the upstream side toward the downstream side. Can be provided. In the first embodiment described above, since the plurality of rods 61A to 61H are formed independently, the size of the fluid transportation device of the present invention is selected according to the type, flow rate, flow rate, etc. of the fluid to be used. In addition, there is an effect that the degree of freedom of setting such as the shape of the portion that presses the tube 35, the pitch between the rods, and the distance from the cam group 132 can be increased.

  In the first embodiment, the gear 133 formed on the cam shaft 131 of the cam mechanism 130 and the internal gear 152 provided on the motor 150 are spline-coupled. The influence of the direction shift and the variation in the distance between the shafts is reduced, and a stable driving force can be transmitted. In addition, there is an effect that the space of the coupling portion can be reduced.

  In the first embodiment, the container unit 20 is provided with a stopper mechanism 90 that presses the tube 35 and closes the flow path on the downstream side of the pressing mechanism 60. When the container unit 20 and the drive unit 100 are separated or in the state of the second position described above, the tube 35 is released from the rod group 61, so that the fluid in the tube may flow out of the tube. It is done. However, since the stopper mechanism 90 closes the flow path of the tube 35, the fluid can be prevented from flowing out of the tube.

Next, a fluid transportation device according to a second embodiment of the present invention will be described with reference to the drawings. The second embodiment is characterized in that it has a comb-shaped pressing portion as a pressing mechanism, and the other components are the same as those in the first embodiment, so that the description thereof is omitted, and the same reference numerals are given to the same functional elements. It is attached.
FIG. 12 is a partial front view of the fluid transportation device 10 according to the second embodiment. In FIG. 12, the container unit 20 and the drive unit 100 are separated. A comb-like pressing portion 190 is formed on the case 40 holding each member constituting the container unit 20 from the end surface 53 on the machine frame 110 side upward in the thickness direction. The comb-like pressing portion 190 is pressed by the cam mechanism 130 and squeezes the tube 35. The shape of the comb-shaped pressing portion 190 is shown in FIG. 13 (details will be described later).

  The basic configuration of the drive unit 100 is the same as that of the first embodiment described above, but the cam mechanism 130 is provided at the end of the machine frame 110 up to a position where it can engage with the comb-like pressing portion 190. A part of the group 132 protrudes from the end surface of the machine casing 110. A gear 133 is formed at the tip of the cam shaft 131 and meshes with a transmission gear 153 fixed to the rotation shaft of the motor 150, so that the rotational force of the motor 150 is transmitted to the cam mechanism 130. The motor 150 is inserted in the direction of the arrow in the figure, and the gear 133 and the transmission gear 153 are engaged.

  FIG. 13 shows an example of the comb-like pressing portion 190. FIG. 13A is a plan view, and FIG. 13B shows a cross-sectional shape viewed from the tip direction. In FIG. 13A, the comb-like pressing portion 190 has eight beam-shaped pressing portions 190 </ b> A to 190 </ b> H formed from the end surface 53 of the case 40. The roots of the pressing portions 190A to 190H are connected by arcs so that stress concentration does not occur at the root portions.

  In FIG. 13B, the surface 191 that contacts the tube 35 at the tip of the comb-shaped pressing portion 190 is smoothly rounded and formed into a shape that does not damage the tube 35 when pressed.

Next, one state when the container unit 20 and the drive unit 100 are coupled and the comb-like pressing portion 190 performs a peristaltic motion will be described with reference to the drawings.
FIG. 14 is a partial front view showing one state when the comb-like pressing portion 190 according to the second embodiment is performing a peristaltic motion, and FIG. 15 is a cross-sectional view. 14 and 15, the comb-like pressing portion 190 abuts against the cam group 132 and performs a peristaltic motion that sequentially presses the tube 35 by the rotation of the motor 150, squeezing the tube 35, and fluid in the direction of the arrow in the drawing. To transport.

The comb-like pressing portion 190 is an elastic beam, and the tube 35 is connected to the tube receiving portion 43 of the case 40 at the maximum radius portion 132A of the cam group 132 (the locus of the maximum radius portion is indicated by a two-dot chain line in the drawing). Press on. In the case of the minimum radius portion 132B (in the drawing, the locus of the minimum radius portion is indicated by a two-dot chain line having a small diameter), it returns to a position away from the tube 35 by its own elastic force (indicated by a broken line in the drawing).
Although not shown, the stopper mechanism 90 releases the blockage of the tube 35.

Therefore, according to the above-described second embodiment, the pressing part is formed in a comb-like shape and integrally formed, and the comb-like pressing part 190 is sequentially squeezed by the cam mechanism 130, so the structure is simplified. This can reduce the cost. As a result, running costs such as replacement of the container unit 20 can be reduced.
In addition, since the pressing portion is comb-shaped, the distance between the pressing portion and the driving mechanism can be shortened (see FIG. 15), so that the fluid transport device 10 can be further downsized.

Next, Embodiment 3 according to the present invention will be described with reference to the drawings. The third embodiment is characterized in that the comb-like pressing portion is formed separately from the case 40 with respect to the second embodiment described above.
FIG. 16 is a partial cross-sectional view illustrating the structure of the pressing portion according to the third embodiment. In FIG. 16, the pressing portion of the comb-like pressing plate 290 described in the third embodiment has substantially the same shape as the comb-like pressing portion 190 shown in FIG. 13. It is bent along the slope 58 and is fixed to the case 40 by a fixing screw 145.

  The machine frame 110 of the drive unit 100 enters to a position where the portion held by the cam mechanism 130 intersects the container unit 20, and the cam mechanism 130 presses the comb-like pressing plate 290 from the vertical upward direction of the inclined surface 58 and the tube 35. Squeeze.

  In FIG. 16, the comb-like pressing plate 290 is disposed obliquely above the tube 35. However, as shown in FIG. 15, the comb-like pressing plate 290 is fixed to the end surface 53 of the case 40 in a direction perpendicular to the bottom surface of the case. Also good.

Therefore, according to the above-described third embodiment, since the comb-like pressing plate 290 as the pressing portion is formed as a single unit and is fixed to the case 40, the comb-shaped pressing plate 290 is processed by pressing or the like. It can be manufactured by means and can contribute to cost reduction. Further, the fact that the comb-shaped pressing plate 290 is a single unit can be manufactured by freely selecting the pitch and the number of the comb-shaped pressing portions without changing the shape of the case 40. If the group 132 also sets the number of cams and a pitch corresponding to it, the fluid transport apparatus which matched the flow volume and flow velocity of the desired fluid easily can be provided.
Moreover, since the distance between the pressing portion and the drive mechanism can be further shortened, the fluid transport device can be further reduced in size.

Next, a fourth embodiment according to the present invention will be described with reference to the drawings. The fourth embodiment is characterized by a latching mechanism that couples the container unit 20 and the drive unit 100, and the other structures can be the same as those of the first to third embodiments. I will explain only.
17 to 19 show a latching mechanism according to the fourth embodiment. 17 shows a state where the container unit 20 and the drive unit 100 are coupled, FIG. 18 shows a state immediately before the coupling, and FIG. 19 shows a state immediately before the coupling is released. In FIG. 17, a latching arm 215 extends from the end of the machine casing 110 constituting the drive unit 100 toward the container unit 20.

  A pair of latching arms 215 are provided on the left and right sides of the end of the machine casing 110, but since they are symmetrical, one latching arm 215 will be described as an example. The latch arm 215 is formed in an inverted U shape, and a latch portion 216 is formed in the middle of the outside.

  In FIG. 17, the latch arm 215 is inserted into the latch arm insertion hole 127 provided in the case 40, and the latch portion 216 enters the latch groove 128 formed in the latch arm insertion hole 127. Thus, the container unit 20 and the drive unit 100 are coupled.

  FIG. 18 shows a state immediately before the container unit 20 and the drive unit 100 are coupled, and a part of the latching arm 215 is inserted into the latching arm insertion hole 127, but the latching part 216 is at the entrance. In the department. A guide slope 217 is formed on the outer side surface of the latching portion 216. When the drive unit 100 is further pushed up (in the direction of the arrow in the figure), the corner of the opening portion of the latch arm insertion hole 127 and the guide slope 217 are formed. As a result, the latch arm 215 is bent inward and moved to the position shown in FIG. 17 to complete the coupling.

  In FIG. 19, the tip end portion of the latch arm 215 is bent inward (in the direction of the arrow in the figure). At this time, the latching portion 216 moves inward until the engagement with the latching groove 128 is released, and when the engagement is released, the coupling between the container unit 20 and the drive unit 100 is released.

  When the latch arm 215 is bent as described above, the tip end portion 218 hits the side surface of the case 40 and stops. Since the amount of movement of the tip 218 is set within the elastic limit range of the latching arm 215, the latching arm 215 is permanently deformed to release the coupling, thereby preventing the latching from becoming impossible.

  Therefore, according to the above-described fourth embodiment, the container unit 20 and the drive unit 100 unit can be easily attached and detached by operating the latching arm 215 as in the first embodiment described above. Since the latch arm 215 can be formed integrally with the machine casing 110, the manufacturing cost can be reduced. In addition, since the shape is simpler and easier to manufacture than the latch arm 115 of the first embodiment, and the latch arm 215 is inserted into the case 40, the size can be further reduced.

Next, a fifth embodiment according to the present invention will be described with reference to the drawings. The fifth embodiment has a feature in the structure of fluid flow path formation as compared with the above-described embodiment, and the other configuration is the same as the above-described embodiment.
FIG. 20 is a cross-sectional view illustrating an example of a fluid flow path according to the fifth embodiment. In FIG. 20, the end portion of the tube 35 inserted and attached to the case 40 extends to the position where the container unit 20 and the drive unit 100 are joined. A fluid flow path 214 is drilled through the machine frame 110 in an extended line shape of the flow path 38 of the tube 35 of the machine frame 110, and a flow path is formed at the joint between the tube 35 and the flow path 214. A sealing material 210 such as silicon rubber having a flow path having substantially the same diameter as the path 214 is embedded in the machine casing 110.

  The inlet of the flow path 214 of the sealing material 210 is formed with a slope having a diameter larger than at least the flow path of the tube 35, and the fluid smoothly flows from the flow path of the tube 35 to the flow path 214 of the machine frame 110. .

  According to the fifth embodiment, the tube 35 does not have to be inserted into the tube guide hole 114 of the machine frame 110 when the container unit 20 and the drive unit 100 are coupled to each other. When the apparatus 10 is used by being connected to another device, the joining of the machine frame 110 and the device can be performed more reliably than when using a flexible tube.

In addition, as a structure which connects the tube 35 and the flow path 214, although not shown in figure, the structure which closely_contact | adheres the sealing material 210 and the edge part of the tube 35 is employable.
Further, a structure in which the end portion of the tube 35 is press-fitted into the flow path 214 of the sealing material 210 may be employed.

  Next, a sixth embodiment according to the present invention will be described with reference to the drawings. Example 6 differs from the previous example in the connection structure of the container and the tube.

  FIG. 21 is a cross-sectional view of a principal part illustrating a connection structure between a container and a tube according to the sixth embodiment. In FIG. 21, an opening 39 is provided at the end of the container 30, and a ring-shaped sealing plug 32 is inserted into the opening 39. A tube 135 is inserted in a substantially central portion of the sealing plug 32, and a flow path 136 of the tube 135 communicates the inside and outside of the container 30. The sealing plug 32, the opening 39 of the container 30, and the tube 135 are in close contact with each other so that fluid does not leak.

  The tube 135 is made of a deformable and flexible material. The sealing plug 32 is preferably made of a synthetic resin having water repellency, and the container 30 can be made of the same material as that of the tube 135 or a rigid synthetic resin.

  Therefore, in the above-described sixth embodiment, since the tube 135 and the container 30 are configured separately, the options for the material of the container 30 are widened, and a fluid transport device that can accommodate and transport fluids of various materials is provided. can do.

In addition, this invention is not limited to the above-mentioned Example, The deformation | transformation in the range which can achieve the objective of this invention, improvement, etc. are included in this invention.
For example, in the above-described embodiment, the battery 160 as the power source and the control unit 170 are stored in the drive unit 100, but can be provided outside.
In this way, a commercial AC power source can be used as the power source. Moreover, the choice of a motor can be expanded.

In the first embodiment, the latch arm 115 is provided as a latch mechanism, and the operation arm unit 120 is operated to attach and detach the container unit 20 and the drive unit. It is also possible to perform hooking only by the arm portion 117.
In this structure, although the operability is slightly inferior, the structure becomes simpler, and the portion protruding outside the case 40 is reduced, thereby enabling downsizing.

  Further, the container unit 20 and the drive unit can be coupled by a fixing means such as screwing instead of the latch arm.

  Further, the latch arm 115 or 215 is provided in the drive unit 100, but can be provided in the container unit 20.

In the above-described embodiment, the lid body 80 is provided. However, the lid body 80 is not necessarily provided as long as a roof-like latching portion that does not drop the container 30 and the tube 35 is provided.
Furthermore, a lid can be provided on either the container unit 20 or the drive unit 100. In this way, the container unit 20 and the drive unit 100 can be attached / detached with the lid attached.

  In the above-described embodiment, the stopper mechanism 90 is provided on the container unit 20 side, but can be provided on the drive unit 100 side.

  Furthermore, in the fluid transport apparatus of the present invention, rods, comb-like pressing portions, etc. are adopted as the means for pressing the tube 35 by the peristaltic movement, but means for compressing the tube by the peristaltic movement by the rotating roller is adopted. be able to.

  In the above-described embodiment, the cam mechanism 130 and the motor 150 are provided with gears and transmit power by spline coupling. However, an axial protrusion is formed on the cam shaft 131, and the rotation shaft of the motor It is possible to adopt a structure in which a groove is formed in the groove and this protrusion is inserted into the groove, and a power transmission mechanism other than spline coupling can also be adopted.

  Therefore, according to the above-described first to sixth embodiments, it is possible to provide a small-sized fluid transportation device that can reduce the running cost and can be stably driven over a long period of time.

1 is a front view showing a fluid transport device according to Embodiment 1 of the present invention. Sectional drawing which shows the press mechanism of the fluid transport apparatus which concerns on Example 1 of this invention. The fragmentary sectional view which shows the stopper mechanism of the fluid transport apparatus which concerns on Example 1 of this invention. The partial front view which shows the cam mechanism and motor as a drive mechanism of the fluid conveying apparatus which concerns on Example 1 of this invention. The partial side view which shows the cam mechanism and motor as a drive mechanism of the fluid conveying apparatus which concerns on Example 1 of this invention. The front view which shows the combined state of the fluid transport apparatus which concerns on Example 1 of this invention. Sectional drawing which shows the fluid transport apparatus which concerns on Example 1 of this invention. The fragmentary sectional view which shows the stopper mechanism at the time of tube opening of the fluid conveying apparatus which concerns on Example 1 of this invention. The fragmentary sectional view which shows the cover body insertion structure of the fluid transport apparatus which concerns on Example 1 of this invention. The partial front view which shows operation | movement of the press mechanism of the fluid transport apparatus which concerns on Example 1 of this invention. The partial front view which shows the state of the 2nd position of the fluid conveying apparatus which concerns on Example 1 of this invention. The partial front view which shows the fluid transport apparatus which concerns on Example 2 of this invention. The front view and top view which show the comb-tooth shaped press part of the fluid transport apparatus which concerns on Example 2 of this invention. The partial front view which shows operation | movement of the press mechanism of the fluid transport apparatus which concerns on Example 2 of this invention. The fragmentary sectional view which shows operation | movement of the press part of the fluid transport apparatus which concerns on Example 2 of this invention. Sectional drawing which shows the structure of the press part of the fluid transport apparatus which concerns on Example 3 of this invention. The partial front view which shows the combined state of the latching mechanism of the fluid transport apparatus which concerns on Example 4 of this invention. The partial front view which shows the state just before the coupling | bonding of the latching mechanism of the fluid transport apparatus which concerns on Example 4 of this invention. The partial front view which shows the state just before the coupling | bonding cancellation | release of the latching mechanism of the fluid transport apparatus which concerns on Example 4 of this invention. Sectional drawing which shows one example of the flow-path structure of the fluid transport apparatus which concerns on Example 5 of this invention. The principal part step view which shows the connection structure of the container and tube which concerns on Example 6 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Fluid transport apparatus, 20 ... Container unit, 30 ... Container, 35 ... Tube, 40 ... Case, 60 ... Pressing mechanism, 61 ... Rod, 90 ... Stopper mechanism, 100 ... Drive unit, 110 ... Machine frame, 130 ... Cam Mechanism, 150 ... motor, 115 ... hanging arm.

Claims (12)

A first unit comprising: a container in which a fluid is sealed; a deformable flexible tube communicating with the inside of the container; a pressing mechanism for giving a peristaltic motion to squeeze the tube; and a case for holding them.
A second unit comprising: a driving mechanism for driving the pressing mechanism; and a machine frame for holding the driving mechanism;
An attachment / detachment mechanism between the first unit and the second unit;
A fluid transportation device comprising: The fluid transport device according to claim 1,
The fluid transporting device according to claim 1, wherein the tube is squeezed by engaging the pressing mechanism and the driving mechanism only when the first unit and the second unit are coupled. The fluid transport device according to claim 1 or 2,
The fluid transport apparatus according to claim 1, wherein the attachment / detachment mechanism includes a latching mechanism for attaching / detaching the first unit and the second unit. The fluid transport device according to any one of claims 1 to 3,
When the first unit and the second unit are coupled to the attachment / detachment mechanism, a first position where the pressing mechanism and the driving mechanism are engaged, and the pressing mechanism and the driving mechanism And a second position where the engagement is disengaged. The fluid transport device according to any one of claims 1 to 4,
The latching mechanism couples the first unit and the second unit to the first position or the first position and the second position to either the case or the machine casing. A fluid transporting device comprising a hooking portion or a hooking portion to be engaged. The fluid transport device according to any one of claims 1 to 5,
The fluid transport device according to claim 1, wherein the pressing mechanism includes a plurality of pressing portions that are driven by the driving mechanism and apply a peristaltic motion that sequentially squeezes the tube from the upstream side toward the downstream side. The fluid transport device according to claim 1 or 6,
The fluid transporting device, wherein the plurality of pressing portions are configured by independently drivable rods. The fluid transport device according to claim 6, wherein
The fluid transporting device, wherein the plurality of pressing portions are formed in a comb-teeth shape in which one end portion is continuous. The fluid transport device according to any one of claims 1 to 8,
The fluid transport device according to claim 1, wherein the drive mechanism includes at least a cam mechanism that drives the pressing mechanism and a drive unit that drives the cam mechanism. The fluid transport device according to claim 9, wherein
The fluid transport device according to claim 1, wherein the cam mechanism and the drive unit are spline-coupled. The fluid transport device according to any one of claims 1 to 10,
Either the first unit or the second unit is provided with a stopper mechanism for closing the flow path of the tube on the downstream side of the pressing mechanism of the tube. . The fluid transport device according to any one of claims 1 to 3 or claim 11,
The stopper mechanism opens the flow path of the tube when the first unit or the second unit moves to the first position and moves to the second position, or is coupled. A fluid transporting device that closes a flow path of the tube when the tube is released.

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