JP5986415B2 - Tube pump - Google Patents

Description

  The present invention relates to a tube pump for conveying a fluid in a tube by a roller.

  A tube pump (also referred to as a roller pump) includes a flexible tube disposed along a cylindrical inner wall surface of a housing, a roller that presses the tube toward the inner wall surface, A rotating body that moves the roller along the circumferential direction.By rotating the rotating body, the roller rolls along the inner wall surface of the housing while flatly crushing the tube, and the fluid in the tube is discharged. It conveys downstream (for example, refer patent document 1).

  Tube pumps do not require disassembly and cleaning of the pump body, and have the advantage of being very easy to fill and sterilize. Widely used in the field of use.

  The advantage of the tube pump that it is only necessary to replace the tube according to the fluid and does not require disassembly of the pump body is that the tube must be replaced. Further, in such a tube pump, since the tube may be deteriorated or pulled in the moving direction of the roller by being crushed, it is necessary to periodically re-stretch the tube.

Japanese Patent Laid-Open No. 9-42159 (published on February 10, 1997)

  As described above, the tube pump must be replaced from the viewpoint of the characteristics of the transport mechanism and the purpose of use. The tube pump uses a hard tube in order to obtain a suction force as a pump. In order to replace such a tube, it is necessary to push the tube into a gap between the roller and the housing. This operation requires an excessive amount of labor from the operator, and requires skill to push the tube so as to ensure the prescribed conveyance performance as a pump.

  The present invention has been made in view of the above-described problems. Specifically, it is an object of the present invention to provide a tube pump that does not require excessive labor and skill from an operator and is easy to maintain.

Tube pump according to the present invention comprises a first substrate, having a second surface opposite to the first side and a second substrate opposed to the first substrate, the vertical drive shaft said surface a rotating body to be rotatable about, a second substrate facing said first substrate across the rotating body, a first tube of flexible sandwiched by the first substrate and the rotary body A flexible second tube sandwiched between the second substrate and the rotating body, and capable of rotating from the drive shaft about a rotating shaft parallel to the radial direction of the rotating body. rollers are provided on said rotary member (also referred to as a side surface of the roller.) plane perpendicular to the drive shaft of the roller pressing formed over the same circumference by at least a portion of, the projecting from said first surface toward the first substrate And protruding from the second surface toward the second substrate, and a first groove along the track of the pressing portion of the roller is formed on the surface of the first substrate. A second groove along the trajectory of the pressing portion of the roller is formed on the surface of the second substrate, and at least a part of the first tube and at least a part of the second tube are In any case , the pressure member is arranged along the track of the pressure unit of the roller by the rotation of the rotary body around the drive shaft, so that the pressure unit is rotated by rotating the rotary body . The fluid inside the first tube and the second tube is conveyed toward the rotation direction of the rotating body while pressing the second tube and the second tube .

  In a conventional tube pump, a roller that pushes a tube supported from the outside in the radial direction of the rotating body by the inner wall of the casing from the inside in the radial direction of the rotating body is provided at the edge of the rotating body. That is, in the conventional tube pump, the tube is pressed using the side surface of the rotating body, and the rotating shaft of the roller used is parallel to the driving shaft of the rotating body. Due to such a configuration, in the conventional tube pump, it is necessary to manually push the tube into the gap between the roller and the housing when the tube is mounted. However, a hard tube is used for the tube pump in order to obtain a suction force as a pump. Therefore, this work requires excessive labor from the worker. In addition, skill is required to correctly push the pump in such a way as to provide the specified conveying performance as a pump. In the present invention, the tube is pressed using the surface facing the substrate. By having the above-mentioned configuration, it is only necessary to place a tube at a desired position, place a rotating body on it, and fix them with the necessary force, so that it does not require labor and skill. The tube can be easily attached to the pump.

Further, in the conventional tube pump, the roller only hits the inner wall of the housing due to the radially outward force of the rotating body, and the tube between the roller and the inner wall of the housing acts on the driving shaft of the rotating body. There may be misalignment along. With such a configuration, it is difficult to always crush the tube constantly, and it is difficult to obtain a specified conveying performance as a pump. In the present invention, since the tube is disposed on the track of the pressure unit of the roller, the tube is not displaced, and the tube can be always crushed uniformly, and the specified conveyance performance as a pump can be easily obtained. Can do. Moreover, by having the said structure, a tube can be easily arrange | positioned along the track | orbit of the pressurization part of the said roller. Moreover, by having the said structure, it can use two tubes, without enlarging the shape and size of a tube pump only by driving a single rotary body, As a result, the number of tubes Therefore, a space-saving tube pump is realized without the need to provide a drive source in accordance with the above. Moreover, since the two tubes are separated by the rotating body, they do not contact each other. Furthermore, since a plurality of types of rollers are not required, the number of parts can be reduced and the overall configuration of the pump can be simplified. Moreover, by having the said structure, a 2nd tube can be easily arrange | positioned along the 2nd track | orbit of the pressurization part of the said roller.

In the tube pump of the present invention, the depth of the first groove, it is preferable that the increased toward the end of the first groove.

  The conventional tube pump has a problem that when the tube pressed against the roller is opened at the outlet, the fluid flows backward due to the rapid opening of the tube and pulsation occurs. Patent Document 1 describes a structure in which an inner wall surface of a housing is separated from a tube toward a pump outlet. This changes the structure of the housing from the drive shaft of the rotating body to the outside in the radial direction. In the present invention, the pulsation caused by the conveying pressure of the tube pump can be reduced by deepening the groove toward the end of the groove (that is, the inlet or outlet of the transfer). In the above configuration of the present invention, the structure of the substrate is changed along the drive shaft of the rotating body.

In the tube pump of the present invention, the first groove on SL may receive the pressing of the roller.

  In order to efficiently convey the fluid, it is necessary to press the tube accurately by the pressing portion of the roller. In the case where the tube is disposed in a state where it is completely stored in the groove, it is possible to increase the fluid conveyance efficiency by having the structure in which the groove receives the pressure portion of the roller. Furthermore, by having such a configuration, the movement of the roller can be stabilized, and as a result, the fluid conveyance efficiency is further improved.

The tube pump according to the present invention preferably further includes a pressing portion that presses one of the rotating body and the first substrate toward the other along the drive shaft.

  In the tube pump, a state where at least one roller presses the tube is maintained when the pump is stopped. If such a state is maintained, the tube is locally degraded, leading to a decrease in conveying pressure and breakage of the tube. Therefore, replacement of the tube is essential. In the conventional tube pump, a mechanism for reducing the pressing pressure of the roller is provided, but this mechanism complicates the configuration of the apparatus. In the present invention, the force required for transporting the fluid inside the tube is urged from the pressure portion of the roller to the tube by firmly and surely pressing the rotating body against the substrate. At this time, only a force in the drive shaft direction is required.

  Further, in order to open the tube when the pump is stopped, only the force in the drive shaft direction needs to be reduced. This direction is the same as the above-described arrangement in the groove of the tube and mounting of the rotating body thereon, so that not only the required structure is simplified, but also the rotating body and the substrate are pressed and separated. The operations necessary for the above can be easily performed. Furthermore, by having such a configuration, the tube can be easily mounted, and the tube can be filled with a liquid while the tube is mounted on the tube pump, or the tube can be cleaned. can do.

  In the tube pump according to the present invention, the second groove may receive the pressure portion of the roller when the second substrate and the rotating body are overlapped.

  In order to efficiently convey the fluid through the second tube, it is necessary that the pressing portion of the roller accurately holds the second tube. In the case where the second tube is disposed in a state of being completely stored in the second groove, the second groove has a configuration for receiving the pressure portion of the roller. It is possible to increase the fluid transfer efficiency in the tube. Furthermore, by having such a configuration, the movement of the roller is stabilized, and as a result, the fluid conveyance efficiency in the second tube is further improved.

The tube pump according to the present invention has a first substrate, a first surface facing the first substrate, and a second surface facing the second substrate, and a drive shaft perpendicular to the surface. A rotating body rotatable around the center, a second substrate facing the first substrate across the rotating body, a flexible first tube held between the first substrate and the rotating body, A flexible second tube sandwiched between the second substrate and the rotating body, and capable of rotating from the drive shaft about a rotating shaft parallel to the radial direction of the rotating body. A first roller and a second roller are provided on the rotating body, and a pressing portion formed on the same circumference by at least a part of a surface perpendicular to the driving shaft of the first roller. Projecting from the first surface towards the first substrate, A pressure part formed over the same circumference by at least a part of a surface perpendicular to the drive shaft of the second roller protrudes from the second surface toward the second substrate, A first groove along the path of the pressing portion of the first roller is formed on the surface of the first substrate, and a second groove along the path of the pressing portion of the second roller is It is formed on the surface of the second substrate, and at least a part of the first tube is along the trajectory of the pressing portion of the first roller by the rotation of the rotating body around the drive shaft. And at least a part of the second tube is disposed along the trajectory of the pressing portion of the second roller by the rotation of the rotating body around the drive shaft. By rotating the rotating body, the pressure unit of the first roller is The fluid inside the tube is transported toward the rotating direction of the rotating body, and the pressurizing portion of the second roller transports the fluid inside the second tube toward the rotating direction of the rotating body. It is characterized by that.

By having the above configuration, it is possible to use two tubes without increasing the shape and size of the tube pump by simply driving a single rotating body. Therefore, it is not necessary to provide a drive source and a space-saving tube pump is realized. Moreover, since the two tubes are separated by the rotating body, they do not contact each other. Moreover, by having the said structure, while being able to arrange | position a 1st tube easily along the track | orbit of the pressurization part of a 1st roller, while a 2nd tube is a 2nd roller It can arrange | position easily along the track | orbit of a pressurization part.

  In the tube pump according to the present invention, the second groove may receive the pressure portion of the second roller when the second substrate and the rotating body are overlapped.

  In order to efficiently convey the fluid through the second tube, it is necessary that the second tube is accurately pressed by the pressing portion of the second roller. When the second tube is disposed in a state of being completely stored in the second groove, the second groove has a configuration for receiving the pressure portion of the second roller. The fluid conveyance efficiency in the second tube can be increased. Furthermore, by having such a configuration, the movement of the second roller is stabilized, and as a result, the fluid conveyance efficiency in the second tube is further improved.

  In the tube pump according to the present invention, it is preferable that the depth of the second groove increases toward the end of the second groove.

  Reducing pulsation in the second tube due to tube pump transfer pressure by deepening the groove towards the end of the second groove (ie, transfer inlet or outlet in the second tube) Can do.

  The tube pump according to the present invention preferably further includes a pressing portion that presses one of the rotating body and the second substrate toward the other along the drive shaft.

  In the present invention, the force required for transporting the fluid inside the second tube is applied to the pressure member of the roller or the pressure member of the second roller by firmly and surely pressing the rotating body against the second substrate. To the second tube. At this time, only a force in the drive shaft direction is required. Further, in order to open the second tube when the pump is stopped, only the force in the drive shaft direction needs to be reduced. This direction is the same direction as the arrangement of the second tube in the second groove and the mounting of the rotating body thereon, so that not only the required structure is simplified but also the rotating body. In addition, operations necessary for pressure bonding and separation of the second substrate are simplified. Furthermore, by having such a configuration, the inside of the second tube can be easily filled with fluid.

  The present invention has the effect of realizing tube replacement without requiring excessive effort or skill from the user of the tube pump.

It is a figure which shows typically the external appearance of the tube pump which concerns on one Embodiment of this invention. It is sectional drawing which shows the internal structure of the tube pump which concerns on one Embodiment of this invention. It is sectional drawing which shows the internal structure of the tube pump which concerns on one Embodiment of this invention. It is sectional drawing which shows a part of internal structure of the tube pump which concerns on one Embodiment of this invention. It is sectional drawing which shows a part of internal structure of the tube pump which concerns on one Embodiment of this invention. It is sectional drawing which shows the internal structure of the tube pump which concerns on one Embodiment of this invention. It is a figure which shows the internal structure of the tube pump which concerns on one Embodiment of this invention. It is sectional drawing which shows the internal structure of the tube pump which concerns on one Embodiment of this invention. It is a figure which shows typically the external appearance and internal structure of the tube pump which concerns on one Embodiment of this invention.

[First embodiment]
Hereinafter, an embodiment of a tube pump according to the present invention will be described in detail with reference to FIGS.

  As shown in FIG. 1, a tube pump 10 according to this embodiment includes a tube 1, a housing 2, and a roller guide 3 that rotates about a drive axis A that is perpendicular to a surface facing the housing 2. Yes. The roller guide 3 is provided with a roller 4 on the radius of the roller guide 3, which can rotate from the drive shaft A about a rotation axis B in the radial direction.

  In the present specification, the term “radial direction” relating to the roller guide is a direction radially extending on the plane from the intersection with the drive axis in a plane perpendicular to the drive axis, and the term “radial portion” relating to the roller guide is , A straight line portion from the intersection point to the end portion of the roller guide on the plane, and the term “diameter portion” relating to the roller guide is an end portion of the roller guide that passes the intersection point on the plane. It is a straight line part to the part. Note that when defining the location of the roller 4, the terms “radius” and “diameter” do not include the intersection and the end of the roller guide.

  The roller guide 3 shown in FIG. 1 has a disk shape that rotates about the drive shaft A, but the shape of the roller guide 3 that can be used in the present invention is that the roller 4 moves about the drive shaft A. As long as the shape is realized, the shape is not limited to a disk shape.

  The shape of the roller 4 shown in FIG. 1 is a column (cylinder) that rotates about the rotation axis B. However, the shape of the roller 4 that can be used in the present invention is not limited to this, and is perpendicular to the rotation axis B. It suffices that the cross section in the plane is always circular to elliptical. The roller 4 protrudes at least partially from the surface of the roller guide 3 facing the housing 2 toward the housing 2, and the protruding portion functions as a pressure unit that pushes the tube 1 downward in the figure. To do.

  The tube 1 has flexibility, and is formed in a groove 5 formed in the housing 2 along the trajectory of the pressing portion of the roller 4 when the roller guide 3 rotates about the drive shaft A. Be placed. The tube 1 is held between the housing 2 and the roller guide 3 by pressing the roller guide 3 from above the roller guide 3 in the figure.

  The tube pump is a device that conveys the fluid in the tube to the downstream side when the roller moves while crushing the tube. The tube pump 10 of this embodiment can also convey the fluid inside the tube 1 toward the rotation direction of the roller guide 3 by rotating the roller guide 3.

  In the tube pump 10 of the present embodiment, the roller 4 moves along a plane perpendicular to the drive axis A and pushes the tube while crushing the tube 1 along the direction of the drive axis A. On the other hand, the conventional tube pump has a configuration in which the roller moves along a plane perpendicular to the drive shaft while crushing the tube along the direction perpendicular to the drive shaft. Clearly different from the configuration.

  Further, since the tube pump of the present embodiment has the above-described configuration, it is possible to simply push the roller guide 3 to the housing 2 along the drive shaft A in FIG. 1 without requiring labor and skill. 1 can be easily attached to the pump, and the tube 1 can be easily released from the pump simply by loosening the pressing force from the roller guide 3 to the housing 2.

  FIG. 2 shows a cross-sectional view of the tube pump 10 in a plane passing through the rotation axis B and along the drive axis A. As shown in FIG. 2a, the tube pump 10 includes a base 6 for fixing the housing 2 and the roller guide 3, and a positioning portion 6 ′ for determining the position of the roller guide 3 in the direction of the drive shaft A. Thus, the roller guide 3 is pushed to the housing 2 with a desired force. That is, the base 6 and the positioning portion 6 ′ are also a pressing portion that presses the roller guide 3 against the housing 2. A tube pump is provided by disposing the tube 1 in the groove 5 of the housing 2, mounting the roller guide 3 on the housing 2 having the positioning portion 6 ′ and pressing the base 6 from above to fix the housing 2. 10 is ready for use (FIG. 2b).

  The height of the positioning portion 6 ′ in the direction of the drive axis A is such that the distance between the casing 2 and the roller guide 3 when the casing 2 and the base 6 are coupled, the diameter of the tube 1 used, the groove 5 The shape and size of the positioning portion 6 ′ in a plane perpendicular to the drive shaft A are not particularly limited as long as the rotation of the roller guide 3 is not hindered.

  The coupling manner of the housing 2 and the base 6 is not particularly limited as long as a force necessary for pressing the tube 1 is generated without hindering the rotation of the roller guide 3 around the drive shaft A, and any fixture Even if the housing 2 and the base 6 are sandwiched, the housing 2 may be screwed to the edge of the base 6, and the edge of the base 6 may be screwed from above the housing 2.

  In FIGS. 2a and b, the housing 2 and the positioning portion 6 ′ are shown as separate members. However, as shown in FIGS. 3a and 3b, the positioning portion 6 ′ is formed on the housing 2 along the drive axis A. You may comprise previously as a convex part. Further, when the roller guide 3 has a shape that fits with the positioning portion 6 ′, the positioning portion 6 ′ is positioned in the direction perpendicular to the drive shaft A as shown in FIGS. It is also a member that determines the position of.

  In FIG. 3, the positioning portion 6 ′ is integrally formed with the housing 2 as a convex portion in the housing 2, and a concave portion formed in the vicinity of the drive shaft A of the roller guide 3 is fitted with this convex portion. Thus, the roller guide 3 is positioned in the direction of the drive shaft A and the direction perpendicular to the drive shaft A.

  The drive means for rotating the roller guide 3 around the drive shaft A is not particularly limited, and drive means used in a conventional tube pump may be used. For example, as shown in FIG. 3 a, the motor shaft 7 may be connected to the roller guide 3 through the base 6 on the drive shaft A. Further, the roller guide 3 may be provided with irregularities on the edge portion so that the swivel gear 7 a is engaged with the drive shaft A from a direction perpendicular thereto.

  By having such a configuration, the tube pump 10 rotates the roller guide 3 around the drive shaft A by operating drive means such as a motor and a gear, and thereby rotates in the direction perpendicular to the drive shaft A. A roller 4 having an axis B pushes the tube 1 and conveys the fluid in the tube 1.

  It is preferable to open the tube while the drive means is not operated to reduce the load on the tube or to fill the tube 1 with a desired fluid. Therefore, it is preferable that the coupling mode between the casing 2 and the base 6 described above is a configuration in which the force for pressing the tube 1 can be arbitrarily changed. For example, the side of the base 6 can be fixed in a predetermined position. An aspect in which the edge portion is screwed to the inner wall surface of the housing 2 may be employed.

  In the roller 4 that presses the tube 1, the roller guide 3 rotates around the drive shaft A, so that the operation around the rotation shaft B occurs. Such an operation also contributes to pushing the tube 1 down. From this, it can be said that the tube pump 10 may further be provided with means for rotating or rotating the roller 4 around the rotation axis B. For example, unevenness may be provided in a region of the side surface of the roller 4 that does not interfere with the pressure unit, and the rotatable gear may be meshed from a direction parallel to the drive shaft A. Further, unevenness may be provided on the edge portion of the surface parallel to the drive shaft A of the roller 4 so that the rotatable gear can be meshed from the direction perpendicular to the drive shaft A.

  As described above, if a means for rotating or rotating the roller is provided, the tube can be pushed and pushed. In this case, it can be said that the roller guide does not necessarily have to be rotated. That is, a first substrate (housing), a second substrate (guide) facing the housing, and a tube sandwiched between the first substrate and the second substrate, the second substrate facing the first substrate A roller that is rotatable about a rotation axis parallel to the surface to be rotated is provided on the second substrate, and a pressing portion formed on the same circumference by at least a part of the side surface of the roller is directed toward the first substrate. If it is a tube pump which protrudes from the surface, the fluid inside the tube pressed by the pressure part of the roller can be conveyed by rotating the roller. Those skilled in the art who have read this specification will easily understand that a tube pump having such a configuration is also within the scope of the present invention.

  Although not shown in the figure, it is preferable that the depth of the groove 5 in the tube pump 10 increases toward the end of the groove 5. Thereby, since the rapid opening of the tube 1 at the outlet is reduced, the backflow of the fluid at the tube outlet can be reduced.

  FIG. 4 shows a cross-sectional view of the roller guide 3 in a plane passing through the rotation axis B and along the drive axis A. As shown in FIG. 4, at least a part of the roller 4 protrudes from the surface of the roller guide 3 facing the housing 2 toward the housing 2 in the opening or recess of the roller guide 3, and the radius of the roller guide 3. What is necessary is just to be provided above. In FIGS. 1 to 4, a set (two) of rollers 4 are provided on a single diameter portion of the roller guide 3, but the rollers 4 may be provided on any radius portion of the roller guide 3. Further, the number of the rollers 4 is not limited, and it is preferable that the pressing portions of the plurality of rollers 4 are provided so as to draw a single track.

  FIG. 5 shows a sectional view of the roller 4 in a plane along the drive axis A, passing through the rotation axis B. As shown in FIG. 5a, even if the entire side surface of the cylindrical roller 4 is a pressing portion, as shown in FIG. 5b, the convex portion formed on the same circumference of the side surface of the cylindrical roller 4 May be a pressure part. Further, as shown in FIGS. 5 c and d, such a pressure portion may be configured to completely fit into the groove 5, whereby the movement of the roller 4 due to the rotation of the roller guide 3 is stable. To do.

  If the tube 1 is disposed along the path of the pressure portion of the roller 4 by the rotation of the roller guide 3 about the drive shaft A, the groove 5 for disposing the tube 1 is not necessarily the housing 2. It does not need to be formed.

  FIG. 6 shows a cross-sectional view of the tube pump 10 in a plane along the drive axis A and passing through the rotation axis B when using the housing 2 that is not provided with a groove. As shown in FIG. 6a, the tube pump 10 includes a base 6 for fixing the housing 2 and the roller guide 3, and a positioning portion 6 ′ for determining the position of the roller guide 3 in the direction of the drive shaft A. Thus, the roller guide 3 is pushed to the housing 2 with a desired force. Then, as shown in FIG. 6b, the tube pump 10 in which the housing 2 is fixed by the base 6 pressed from above the roller guide 3 is in a usable state.

  The tube pump 10 shown in FIG. 6 a has an auxiliary portion 8 that defines the path 9 of the pressure portion of the roller 4 by the rotation of the roller guide 3 about the drive shaft A between the housing 2 and the roller guide 3. Is further provided. Thereby, the roller 4 moves along a plane perpendicular to the drive axis A while crushing the tube 1 arranged along the track 9 of the pressurizing portion of the roller 4 in the direction of the drive axis A. Push tube 1 down.

  Moreover, the housing | casing 2 in which the groove | channel is not provided may be the flat board | substrate 2 as shown to FIG. FIG. 7 shows an internal structure of the tube pump 10 in a plane along the drive axis A and passing through the rotation axis B in the case where the flat substrate 2 having no grooves is used. As shown in FIG. 7a, the tube pump 10 includes a base 6 for fixing the substrate 2 and the roller guide 3 and a positioning portion 6 ′ for determining the position of the roller guide 3 in the direction of the drive shaft A. The roller guide 3 is pushed onto the substrate 2 with a desired force. Then, as shown in FIG. 7b, the tube pump 10 in which the substrate 2 is fixed by the base 6 pressed from above the roller guide 3 is in a usable state.

  The tube pump 10 shown in FIG. 7a includes an auxiliary unit 8 that defines the path 9 of the pressure unit of the roller 4 between the substrate 2 and the roller guide 3 by the rotation of the roller guide 3 about the drive shaft A. 8 'is further provided. As shown in FIG. 7 c, the space between the auxiliary portion 8 and the auxiliary portion 8 ′ is defined as the track 9 of the pressure portion of the roller 4. Thereby, the roller 4 moves along a plane perpendicular to the drive axis A while crushing the tube 1 arranged along the track 9 of the pressurizing portion of the roller 4 in the direction of the drive axis A. Push tube 1 down.

  As shown in FIG. 6a or 7a, the tube 1 may be disposed on the housing 2 along the outer periphery of the auxiliary member 8 so that the groove 5 is formed in the housing 2 or the substrate 2. Even if it is not formed, each member of the tube pump 10 can be easily arranged at a predetermined position.

  The mode in which the groove 5 is not formed in the housing 2 or the substrate 2 is not limited to FIGS. 6 and 7. For example, a recess is formed in each pressing portion of the plurality of rollers 4 to draw a single track. The whole may be arranged.

  Although the embodiment in which the rotation axis of the roller 4 is present in the radius portion of the roller guide 3 is shown in FIGS. 1 to 7, the tube 1 is arranged along the path of the pressing portion of the roller 4. As long as the rotation axis of the roller 4 does not have to be the radius portion of the roller guide 3, and when a plurality of rollers 4 are used, the tube 1 is disposed along the overlapping portion of the track of each pressure unit. The rotation axis of the roller 4 may not be the radius portion of the roller guide 3.

  Further, as described above, in the tube pump 10 having a groove, it is preferable that the depth of the groove increases toward the end of the groove. Even in the case of a tube pump that does not have a groove, for example, the lower surface of the auxiliary member 8/8 ′ (the surface facing the roller guide 3) perpendicular to the drive shaft A (the surface facing the roller guide 3) ( A similar configuration can be obtained by the fact that the surface facing the housing 2 or the substrate 2 has an angle. In this case, the surface of the housing 2 (or the substrate 2) in contact with the lower surface of the auxiliary members 8 and 8 ′ has an angle corresponding to the angle of the auxiliary members 8 and 8 ′ with respect to the surface perpendicular to the drive axis A. Have. Thereby, since the rapid opening of the tube 1 at the outlet is reduced, the backflow of the fluid at the tube outlet can be avoided.

  Moreover, in FIGS. 2-7, although the drive shaft A and the rotating shaft B are not shown, please refer to FIG. 1 as needed.

[Second Embodiment]
A further embodiment of the tube pump according to the present invention will be described in detail with reference to FIG. Unless a description is given, description of members having the same numbers as those in the first embodiment is omitted in this section.

  The tube pump 10 according to the present embodiment can also use two flexible tubes in order to convey two different types of fluids. In FIG. 8, the external appearance and internal structure of the tube pump 10 using two tubes are typically shown.

  As in the tube pump 10 according to the present embodiment, when the fluid inside the tubes 1, 1 ′ is conveyed only in the roller 4 toward the rotation direction of the roller guide 3, as shown in FIG. At least part of the roller guide 3 protrudes from both the lower side and the upper side in the drawing, and the portion protruding downward functions as a first pressurizing portion that pushes the tube 1 downward in the drawing and protrudes upward. The portion functions as a second pressurizing unit that pushes the tube 1 ′ upward in the drawing.

  In FIG. 8, as a modification of the first embodiment, the first and second substrates 2 and 2 ′ are both plate-shaped, and the roller guide 3 does not have to be directly coupled. 1 shows a tube pump 10 configured by a pressing portion 6 fixing a first substrate 2 and a second substrate 2 ′ in a state of sandwiching the first substrate 2 and the second substrate 2 ′.

  In FIG. 8, a flexible tube 1 1 ′, a positioning portion 6 ′, and an auxiliary portion are provided below and above the roller guide 3 in which at least a part of the roller 4 protrudes from both below and above in the drawing. 8 and 8 are arranged, a flat substrate 2 is arranged below the tube 1 in the drawing, a flat substrate 2 'is arranged above the tube 1' in the drawing, and the pressing portion 6 is the second substrate 2 '. The tube pump 10 is configured in a usable state by being coupled to the first substrate 2 through the roller guide 3 (FIGS. 8a and 8b). Also in such a tube pump 10, the roller 4 pushes both the tubes 1 and 1 ′ by rotating the roller guide 3, and conveys the fluid inside the tube 1 toward the rotation direction of the roller guide 3. Can do.

  In addition, as the tube pump 10 using the two tubes of the present embodiment, a configuration using two flat substrates 2 and 2 ′ has been described as an example. The structure may be the same as that of the housing 2 of the embodiment, and the tube pump 10 of the first embodiment is configured using two flat plate substrates 2 and 2 'as in the present embodiment. Those of ordinary skill in the art who have read this specification will readily appreciate that this may be the case.

[Other Embodiments]
A further embodiment of the tube pump according to the present invention will be described in detail with reference to FIG. In addition, the description is abbreviate | omitted in this section about the member which has the same number as the member in 1st embodiment and 2nd embodiment unless it attaches | subjects description.

  Similarly to the second embodiment, the tube pump 10 according to the present embodiment can use two tubes having flexibility in order to convey two different types of fluids. In FIG. 9, the external appearance and internal structure of the tube pump 10 using two tubes are typically shown.

  As shown in FIG. 9a, the roller guide 3 of the tube pump 10 according to the present embodiment has a second diameter portion (in the drawing, perpendicular to the diameter portion (O-Y direction in the drawing) where the roller 4 is provided. A second roller 4 ′ is provided in the (O-X direction). FIG. 9 b schematically shows a cross section of the roller guide 3 along X-O-Y in FIG. 9 a parallel to the drive axis A of the roller guide 3.

  As shown in FIG. 9b, the roller 4 has a rotation axis B and protrudes at least partially from the lower surface of the roller guide 3 in the figure. As shown in FIG. It functions as a pressurizing part that pushes toward the middle and lower. Further, the second roller 4 ′ has a second rotation axis B ′, and at least a part thereof protrudes from the upper surface of the roller guide 3 in the figure, and as shown in FIG. 9c, this protruding part is a tube. It functions as a pressurizing unit that pushes 1 'upward in the figure. The rotation shaft B and the rotation shaft B ′ are displaced from each other along the direction of the drive shaft of the roller guide 3.

  FIG. 9 c schematically shows a cross section of the tube pump 10 in a usable state along X-O-Y in FIG. 9 a parallel to the drive shaft of the roller guide 3. In the tube pump 10 according to this embodiment, the first substrate 2 and the second substrate 2 'are fixed to each other with the roller guide 3 and the tubes 1 and 1' interposed therebetween as shown in the figure. In the tube pump 10 according to the present embodiment, recesses are formed in the vicinity of the drive shafts on both the lower surface and the upper surface of the roller guide 3 in the drawing, and the first and second substrates 2 and 2 ′ are driven respectively. The roller guide 3 is positioned in a drive shaft direction and a direction perpendicular to the drive shaft by fitting with a convex portion formed in the vicinity of the shaft.

  As described above, the tube pump 10 according to this embodiment includes the tube 1 · 1 ′, the substrate 2 · 2 ′, and the roller guide 3 that rotates about the drive axis A perpendicular to the surface facing the substrate 2 · 2. The roller guide 3 includes a roller 4 rotatable around a rotation axis B perpendicular to the drive axis A and a roller 4 'rotatable around a second rotation axis B ′ perpendicular to the drive axis A. It is provided on the radius of the roller guide 3.

  The tube 1 is disposed in the groove 5 formed in the first substrate 2 along the trajectory of the pressing portion of the roller 4 when the roller guide 3 rotates about the drive shaft A. Between the substrate 2 and the roller guide 3. The tube 1 ′ is formed in a groove 5 ′ formed in the second substrate 2 ′ along the trajectory of the pressing portion of the second roller 4 ′ when the roller guide 3 rotates about the drive shaft A. It is arranged and is sandwiched between the second substrate 2 ′ and the roller guide 3.

  The tube pump 10 according to the present embodiment rotates the roller guide 3 so that the roller 4 crushes the tube 1 downward in the figure while moving along a plane perpendicular to the drive axis A to push the tube. The second roller 4 'crushes the tube 1' upward in the figure and moves along a plane perpendicular to the drive shaft to push the tube. As a result, the fluid inside the tubes 1, 1 ′ is conveyed toward the rotation direction of the roller guide 3.

  The first substrate 2 and the second substrate 2 ′ can be coupled with each other as long as a force necessary to press the tubes 1 and 1 ′ is generated without preventing the rotation of the roller guide 3 around the drive shaft A. There is no particular limitation, and both of them may be sandwiched between arbitrary fixing tools, screwed, or screwed. By having the above configuration, the tube 1.1 ′ can be easily mounted on the pump without requiring labor and skill simply by applying a pressing force in the direction along the drive axis A of the roller guide 3. By simply loosening the pressing force, the tubes 1 and 1 installed in the pump can be easily released from the applied pressing force.

  Although the embodiment in which the rotation axis of the rollers 4 and 4 ′ is present in the radius portion of the roller guide 3 is shown in FIG. 9, the present embodiment has been described. As long as the tubes 1 and 1 ′ are arranged, the rotation axis of the rollers 4 and 4 ′ may not be the radius portion of the roller guide 3. When a plurality of rollers 4 and 4 ′ are used, As long as the tubes 1, 1 ′ are arranged along the overlapping portions of the track, the rotation axis of the rollers 4, 4 ′ does not have to be the radius portion of the roller guide 3.

  Note that it is possible for those skilled in the art to appropriately change the shape of the rollers 4 and 4 ′ and the shape of the grooves 5 and 5 ′ in accordance with the characteristics of the fluid to be conveyed. Those of ordinary skill in the art who have read this specification will readily appreciate that tube pumps having 4 'and grooves 5 and 5' are also within the scope of the present invention.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

[Additional Notes]
The tube pump 10 has a housing 2 and a roller guide 3 having a surface facing the housing 2, which is rotatable about a drive axis A perpendicular to the surface, and the housing 2 and the roller guide 3. And a flexible tube 1, and a roller 4 that is rotatable about a rotation axis B parallel to the radial direction of the roller guide 3 from the drive shaft A is provided on the roller guide 3. A pressure portion formed on the same circumference by at least a part of the side surface of 4 protrudes from the surface facing the housing 2 toward the housing 2, and at least a part of the tube 1 is connected to the drive shaft A Is arranged on the track 9 of the pressure part of the roller 4 by the rotation of the roller guide 3 around the center of the tube 1, and the fluid inside the tube 1 is directed in the rotation direction of the roller guide 3 by rotating the roller guide 3. Carry .

  In the conventional tube pump 10, a roller 4 that pushes the tube 1 supported from the outside in the radial direction of the roller guide 3 by the inner wall of the housing from the inside in the radial direction of the roller guide 3 is provided at the edge of the roller guide 3. It has been. That is, in the conventional tube pump 10, the tube 1 is pressed using the side surface of the roller guide 3, and the rotation axis B of the roller 4 used is parallel to the drive axis A of the roller guide 3. Due to such a configuration, in the conventional tube pump 10, when the tube 1 is mounted, it is necessary to manually push the tube 1 into the gap between the roller 4 and the housing. However, a hard tube is used for the tube pump 10 in order to obtain a suction force as a pump. Therefore, this work requires excessive labor from the worker. In addition, skill is required to correctly push the pump in such a way as to provide the specified conveying performance as a pump. In the present invention, the tube 1 is pressed using a surface facing the housing 2. With the above-described configuration, the tube 1 is disposed at a desired position, the roller guide 3 is placed thereon, and it is only necessary to fix them with a necessary force, so that labor and skill are required. The tube 1 can be easily attached to the pump without any problems.

  Further, in the conventional tube pump 10, the roller 4 only hits the inner wall of the housing by the radially outward force of the roller guide 3, and the tube 1 between the roller 4 and the inner wall of the housing is a roller It can move along the drive axis A of the guide 3. In such a configuration, it is difficult to always squeeze the tube 1 constantly, and it is difficult to obtain a specified transport performance as a pump. In the present invention, since the tube 1 is arranged on the track 9 of the pressing portion of the roller 4, the tube 1 can be always crushed uniformly, and the specified conveying performance as a pump can be easily obtained.

  In the tube pump 10, a groove 5 along the track 9 of the pressurizing portion of the roller 4 is formed on the surface of the housing 2.

  By having the said structure, the tube 1 can be easily arrange | positioned along the track | orbit 9 of the pressurization part of the roller 4. FIG.

  In the tube pump 10, the depth of the groove 5 increases toward the end of the groove 5.

  The conventional tube pump 10 has a problem in that when the tube 1 pressed against the roller 4 is opened at the outlet, a fluid reverse flow occurs due to the rapid opening of the tube 1 and pulsation occurs. It was. Patent Document 1 describes a structure in which the inner wall surface of the housing is separated from the tube 1 toward the pump outlet. This changes the structure of the housing from the drive shaft A of the roller guide 3 to the outside in the radial direction. In the present invention, the pulsation caused by the conveyance pressure of the tube pump 10 can be reduced by deepening the groove toward the end of the groove 5 (that is, the inlet or outlet of the conveyance). The above configuration of the present invention changes the structure of the housing 2 along the drive axis A of the roller guide 3.

  In the tube pump 10, the groove 5 may receive the pressure portion of the roller 4 when the casing 2 and the roller guide 3 are overlapped.

  In order to efficiently convey the fluid, it is necessary for the pressure part of the roller 4 to hold the tube 1 accurately. When the tube 1 is disposed in a state where it is completely stored in the groove 5, it is possible to increase the fluid conveyance efficiency by having the structure in which the groove 5 receives the pressure portion of the roller 4. it can. Furthermore, by having such a configuration, the movement of the roller 4 can be stabilized, and as a result, the fluid conveyance efficiency is further improved.

  The tube pump 10 further includes a base 6 that urges one of the roller guide 3 and the housing 2 toward the other along the drive shaft A.

  In the tube pump 10, the state where at least one roller 4 presses the tube 1 is maintained when the pump is stopped. If such a state is maintained, the tube 1 will deteriorate locally, leading to a decrease in conveying pressure and damage to the tube 1. Therefore, replacement of the tube 1 is essential. The conventional tube pump 10 is provided with a mechanism for reducing the pressing pressure of the roller 4, but this mechanism complicates the configuration of the apparatus. In the present invention, the roller guide 3 is firmly and surely pressed against the housing 2, whereby a force necessary for transporting the fluid inside the tube 1 is urged from the pressurizing portion of the roller 4 to the tube 1. At this time, only a force in the direction of the drive shaft A is required.

  Further, in order to open the tube 1 when the pump is stopped, only the force in the direction of the drive shaft A needs to be reduced. This direction is the same as the arrangement of the tube 1 in the groove 5 and the mounting of the roller guide 3 thereon, so that not only the required structure is simplified, but also the roller guide 3 and the housing. The operations necessary for pressure bonding and separation of the body 2 are simplified. Furthermore, by having such a configuration, the tube 1 can be easily attached, and the tube 1 can be filled with a liquid while the tube 1 is attached to the tube pump 10, Can be cleaned.

  The tube pump 10 may further include a flexible second tube 1 ′ and a second housing 2 ′ facing the housing 2 with the roller guide 3 interposed therebetween. In this case, the roller guide 10 3 further has a second surface facing the second housing 2 ′, and the pressure part of the roller 4 protrudes from the second surface toward the second housing 2 ′, A second groove 5 ′ in which the second tube 1 ′ is arranged along the second track 9 ′ of the pressing portion of the roller 4 by the rotation of the roller guide 3 around the drive shaft A is a second housing. A second tube 1 ′ formed on the surface of the body 2 ′ and disposed in the second groove 5 ′ is sandwiched between the second housing 2 ′ and the roller guide 3. Is rotated to convey the fluid in the second tube 1 ′ toward the rotation direction of the roller guide 3.

  By having the above-described configuration, it is possible to use the two tubes 1 and 1 ′ without increasing the shape and size of the tube pump 10 only by driving the single roller guide 3. As a result, Therefore, it is not necessary to provide a drive source according to the number of tubes 1 and 1 ', and a space-saving tube pump 10 is realized. Further, since the two tubes 1 and 1 'are separated by the roller guide 3, they do not contact each other. Furthermore, since a plurality of types of rollers are not required, the number of parts can be reduced and the overall configuration of the pump can be simplified.

  In the tube pump 10, a second groove 5 ′ along the second track 9 ′ of the pressure unit of the roller 4 is formed on the surface of the second housing 2 ′.

  By having the above configuration, the second tube 1 ′ can be easily disposed along the second track 9 ′ of the pressing portion of the roller 4.

  In the tube pump 10, the second groove 5 ′ may receive the pressure portion of the roller 4 when the second housing 2 ′ and the roller guide 3 are overlapped.

  In order to efficiently convey the fluid through the second tube 1 ′, it is necessary that the second tube 1 ′ is accurately pressed by the pressure unit of the roller 4. In the case where the second tube 1 ′ is disposed in a state of being completely stored in the second groove 5 ′, the second groove 5 ′ has a configuration for receiving the pressure portion of the roller 4. Therefore, it is possible to increase the efficiency of fluid transfer in the second tube 1 ′. Furthermore, by having such a configuration, the movement of the roller 4 is stabilized, and as a result, the fluid conveyance efficiency in the second tube 1 ′ is further improved.

  The tube pump 10 may further include a flexible second tube 1 ′ and a second housing 2 ′ facing the housing 2 with the roller guide 3 interposed therebetween. In this case, the roller guide 10 3 further has a second surface facing the second housing 2 ', and is a second roller 4 that is rotatable from the drive shaft A about a second rotational axis B' in the radial direction. 'Is provided on the radius of the roller guide 3, and the pressing portion of the second roller 4' formed on the same circumference by at least a part of the side surface of the second roller 4 'is a second housing. Projecting from the second surface toward the body 2 ′, the second roller disposed on the track 9 of the pressing portion of the second roller 4 ′ by the rotation of the roller guide 3 around the drive shaft A is provided. The tube 1 'is sandwiched between the second casing 2' and the roller guide 3, The fluid inside the second tube 1 'is conveyed toward the rotating direction of the roller guide 3 by rotating the de 3.

  By having the above-described configuration, it is possible to use the two tubes 1 and 1 ′ without increasing the shape and size of the tube pump 10 only by driving the single roller guide 3. As a result, Therefore, it is not necessary to provide a drive source according to the number of tubes, and the space-saving tube pump 10 is realized. Further, since the two tubes 1 and 1 'are separated by the roller guide 3, they do not contact each other.

  In the tube pump 10, a second groove 5 ′ is formed on the surface of the second housing 2 ′ along the track 9 of the pressure part of the second roller 4 ′.

  By having the said structure, 2nd tube 1 'can be easily arrange | positioned along the track | orbit 9 of the pressurization part of 2nd roller 4'.

  In the tube pump 10, the second groove 5 ′ may receive the pressurizing portion of the second roller 4 ′ when the second housing 2 ′ and the roller guide 3 are overlapped.

  In order to efficiently convey the fluid through the second tube 1 ′, it is necessary to accurately press the second tube 1 ′ with the pressing portion of the second roller 4 ′. When the second tube 1 ′ is arranged in a state of being completely retracted in the second groove 5 ′, the second groove 5 ′ receives the pressure part of the second roller 4 ′. By having the configuration, the fluid conveyance efficiency in the second tube 1 ′ can be increased. Furthermore, by having such a configuration, the movement of the second roller 4 ′ is stabilized, and as a result, the fluid conveyance efficiency in the second tube 1 ′ is further improved.

  In the tube pump 10, the depth of the second groove 5 ′ increases toward the end of the second groove 5 ′.

  By making the groove deeper toward the end of the second groove 5 ′ (that is, the inlet or outlet of the transfer in the second tube 1 ′), the second tube 1 resulting from the transfer pressure of the tube pump 10 is obtained. The pulsation in 'can be reduced.

  The tube pump 10 further includes a base 6 that urges one of the roller guide 3 and the second housing 2 ′ along the drive shaft A to the other.

  In the present invention, by pressing the roller guide 3 firmly and surely against the second housing 2 ′, the force necessary for transporting the fluid inside the second tube 1 ′ is applied to the pressurizing portion of the roller 4 or the second portion. The pressure is applied to the second tube 1 ′ from the pressure part of the roller 4 ′. At this time, only a force in the direction of the drive shaft A is required. Further, in order to open the second tube 1 'when the pump is stopped, only the force in the direction of the drive shaft A needs to be reduced. Since this direction is the same as the above-described arrangement of the second tube 1 ′ in the second groove 5 ′, the mounting of the roller guide 3 thereon, etc., only the required structure is simplified. In addition, operations necessary for pressure bonding and separation of the roller guide 3 and the second housing 2 ′ are simplified. Furthermore, by having such a configuration, the second tube 1 ′ can be easily filled with fluid.

  Since the present invention further enhances the utility value of the tube pump, it is widely used in the fields of food, pharmaceuticals, and fluids that are difficult to handle.

1 Tube 1 'Second tube 2 Substrate (housing, first substrate)
2 'Second substrate (second housing)
3 Rotating body (roller guide)
4 Roller (Pressure part)
4 'second roller (second pressure part)
5 groove 5 'second groove 6 pressing part (base)
6 'Pushing part (positioning part)
7 Drive unit (motor shaft)
7a Drive unit (gear)
8 Auxiliary part 9 Orbit of pressurizing part 9 'Orbit of second pressurizing part 10 Tube pump A Drive shaft B Rotating axis B' Second rotating axis

Claims (8)

A first substrate;
Having a second surface opposite to the first side and a second substrate opposed to the first substrate, a rotating body rotatable about a vertical drive shaft said surface,
A second substrate facing the first substrate across the rotating body;
A flexible first tube sandwiched between the first substrate and the rotating body;
A flexible second tube sandwiched between the second substrate and the rotating body;
With
A roller capable of rotating from the drive shaft about a rotation axis parallel to the radial direction of the rotator is provided on the rotator.
Pressurizing formed over the same circumference by at least a portion of a plane perpendicular to the drive shaft of the roller, towards the first substrate with protruding from said first surface said second Protruding from the second surface toward the substrate,
A first groove along the track of the pressure part of the roller is formed on the surface of the first substrate, and a second groove along the track of the pressure part of the roller is the second groove. Formed on the surface of the substrate,
At least a part of the first tube and at least a part of the second tube are both arranged along the trajectory of the pressure unit of the roller by the rotation of the rotating body around the drive shaft. By
By rotating the rotating body, the pressurizing unit pushes the first tube and the second tube while the fluid inside the first tube and the second tube is rotated in the rotating direction of the rotating body. Tube pump characterized by being conveyed toward The tube pump of claim 1, wherein the depth of the first groove increases toward the end of the first groove. The tube pump of claim 1, wherein the first groove receives a pressure portion of the roller. 2. The tube pump according to claim 1, further comprising a pressing portion that presses one of the rotating body and the first substrate toward the other in the drive shaft direction. The tube pump of claim 1, wherein the second groove receives a pressure portion of the roller. The tube pump according to claim 1, wherein the depth of the second groove increases toward the end of the second groove. The tube pump according to claim 1, further comprising a pressing portion that presses one of the rotating body and the second substrate toward the other. A first substrate;
A rotating body having a first surface facing the first substrate and a second surface facing the second substrate, the rotating body being rotatable about a drive axis perpendicular to the surface;
A second substrate facing the first substrate across the rotating body;
A flexible first tube sandwiched between the first substrate and the rotating body;
A flexible second tube sandwiched between the second substrate and the rotating body;
With
A first roller and a second roller that are rotatable from the drive shaft around a rotation axis parallel to the radial direction of the rotator are provided on the rotator.
A pressing part formed on the same circumference by at least a part of a surface perpendicular to the drive shaft of the first roller protrudes from the first surface toward the first substrate, and the second roller A pressure part formed over the same circumference by at least a part of a surface perpendicular to the drive shaft of the roller of the roller protrudes from the second surface toward the second substrate,
A first groove along the path of the pressing portion of the first roller is formed on the surface of the first substrate, and a second groove along the path of the pressing portion of the second roller is formed. Formed on the surface of the second substrate,
At least a part of the first tube is disposed along a trajectory of the pressing portion of the first roller by the rotation of the rotating body around the drive shaft, and at least a part of the second tube Is arranged along the trajectory of the pressing portion of the second roller by the rotation of the rotating body around the drive shaft,
By rotating the rotating body, the pressure part of the first roller conveys the fluid inside the first tube toward the rotating direction of the rotating body while pressing and pressing the first tube, A tube pump characterized in that the pressurizing part of the second roller conveys the fluid inside the second tube toward the rotation direction of the rotating body while pressing and pressing the second tube.

Images