JP2014173583A - Tube pump - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily replace a tube in a tube pump in a short time, and to stably feed fluid at a constant flow rate through the tube even after replacement.SOLUTION: A tube unit 10 having a tube 12 arranged in a ring shape along an inner wall surface of a circular tube storage part 11a, and a rotary pressure member 13 rotated in an inner peripheral side of the tube and moving a part pressing the tube to the inner wall surface of the tube storage part to deform the tube to a peripheral direction, and a rotating device unit 20 having a rotating device 21 for rotating the rotary pressure member are provided so as to be separated from each other. During usage of a tube pump 1, a rotating shaft 13a of the rotary pressure member and a rotating shaft 21a of the rotating device are connected by power transmitting means 30, and the tube unit and the rotating device unit are connected at a prescribed position by positioning and holding means 40.

Description

  In the present invention, the tube is arranged in a ring shape along the inner wall surface of the circular tube housing portion, and the rotary pressure member is rotated by a rotating device on the inner peripheral side of the tube. This invention relates to a tube pump that moves the portion of the tube that is pressed and deformed to the inner wall surface of the tube housing portion in the circumferential direction, and sends the fluid through the tube.

  Conventionally, as shown in Patent Document 1 and the like, a tube is arranged in a ring shape along the inner wall surface of a circular tube housing portion, and a rotary pressurizing member is rotated by a rotating device on the inner peripheral side of the tube. A tube pump is used in which a fluid is sent through the inside of the tube by moving a portion of the tube that presses and deforms the tube against the inner wall surface of the tube housing portion in the circumferential direction.

  And in such a tube pump, in order to move the portion in which the tube is pressed and deformed to the inner wall surface of the tube housing portion by the rotary pressurizing member in the circumferential direction, the tube and the like are gradually worn or damaged. It is necessary to exchange tubes.

  Here, in Patent Document 1, the tube pump is driven by an outer member having a circular tube housing portion, a pressure member that presses the tube and the tube against the inner wall surface of the tube housing portion, and the like. A drive-side unit formed of a unit, an eccentric shaft for eccentrically moving the pressure member, and a motor for driving the eccentric shaft, and the eccentric shaft of the drive-side unit is connected to the driven-side unit. In addition to being inserted into the pressure member, the case main body in the driven side unit and the base in the drive side unit are provided with engaging portions, or these are engaged, or the case main body in the driven side unit and the drive side unit Screws corresponding to each base are formed, and these are coupled with screws to connect the drive side unit and the driven unit. What is shown.

  And in the tube pump in this patent document 1, when exchanging a tube, the said driven side unit and the drive side unit are isolate | separated, and the eccentric shaft provided in the drive side unit is pressurized in a driven side unit. The tube mounted between the inner wall surface of the tube housing portion and the pressure member is exchanged in a state where the tube is extracted from the member and the pressure of the tube by the pressure member is weakened.

  However, even in such a case, it is necessary to take out the tube from the inner wall surface of the tube housing portion and the pressurizing member and attach it, and it still takes time and trouble to replace the tube. There was a problem.

  In addition, in the tube pump in Patent Document 1, in order to stably send a fluid in a constant amount through the tube, an eccentric shaft provided in the driving side unit is connected to an appropriate pressure member in the driven side unit. In this state, the eccentric shaft needs to be stably rotated.

  For this reason, in the tube pump in patent document 1, it is necessary to raise the positional accuracy etc. at the time of connecting a drive side unit and a driven side unit, these manufacture becomes difficult, and it says that manufacturing cost becomes high. There was a problem. In addition, the drive-side unit and the driven-side unit can be firmly connected and fixed in order to prevent a deviation between the drive-side unit and the driven-side unit while using the tube pump. In this case, there is a problem that the operation of separating the driven unit and the driving unit becomes very troublesome and the operation of replacing the tube and the like becomes more difficult.

  In particular, as with a tube pump for injecting a chemical solution using a tube with a small tube diameter, it is small and excellent in portability, is easy to handle, and requires a constant amount of fluid to be stably delivered through the tube. In the tube pump to be used, as described above, it is very difficult to take out the tube from the inner wall surface of the tube housing portion and the pressurizing member and attach the tube, and the fluid is stabilized in a constant amount through the tube. Therefore, there is a problem that it is very difficult to send out.

  Furthermore, in the tube pump in Patent Document 1, in order to change the diameter of the tube to be used in order to change the amount of fluid to be sent through the tube, the eccentric shaft in the drive side unit or the pressurization in the driven side unit is used. It was very difficult to change the amount of fluid to be sent through the tube by simply changing the diameter of the tube by replacing the members or the like and requiring a lot of time and work.

JP 2001-200904 A

  The present invention is a tube pump as described above, particularly a tube pump for injecting a chemical solution using a tube with a thin tube diameter, and is small and excellent in portability, and is easy to handle, and the fluid is constant throughout the tube. Tube pumps that are required to be delivered in a stable amount can be replaced very easily in a short time, and even after replacement, the fluid can be stabilized at a constant amount through the tube. It is an object of the present invention to make it possible to easily change the amount of fluid to be delivered through the tube by changing the diameter of the tube or the like.

  In the tube pump of the present invention, in order to solve the above-described problems, the tube is arranged in a ring shape along the inner wall surface of the circular tube housing portion, and the rotary pressurizing member is disposed on the inner peripheral side of the tube. In the tube pump that rotates by a rotating device, moves the portion of the tube that is pressed and deformed to the inner wall surface of the tube housing portion in the circumferential direction by the rotating pressure member, and sends the fluid through the tube. A tube unit provided with a tube and a rotary pressurizing member in the tube housing portion and a rotary device unit provided with the rotary device are configured to be separable, and the rotary shaft of the rotary pressurizing member and the rotary device A state where the rotating shaft of the tube unit and the rotating device unit are connected to a predetermined position while being separably connected to each other by a power transmission means. Provided positioning and holding means for holding.

  Here, in the tube pump of the present invention, as the rotary pressurizing member, for example, an eccentric rotor that rotates eccentrically on the inner peripheral side of the tube by rotation of the rotation shaft, and an outer periphery of the eccentric rotor are provided. A member having a pressing member that presses the tube can be used.

  Further, as the positioning and holding means, a magnet is provided in one of the tube unit and the rotating device unit, and a magnetic member that is magnetically attached to the magnet is provided in the other unit. The tube unit and the rotating device unit can be positioned and held by the magnetic force between them. In this way, it is possible to easily attach or separate the tube unit and the rotating device unit.

  Further, as the positioning holding means, a positioning pin is provided in either one of the tube unit and the rotating device unit so that the positioning pin protrudes and the positioning pin is inserted in the other unit, and the positioning pin is provided. Is inserted into the positioning hole, and the tube unit and the rotating device unit are locked in place, so that the tube unit and the rotating device unit are reliably prevented from shifting while the tube pump is being used. The Further, when the positioning pin is inserted into the positioning hole and the positioning pin is locked to the positioning hole by a magnetic force, the tube unit or the rotating device unit is not provided with a magnet and a magnetic member separately. And the rotating device unit are positioned and held at appropriate positions, and the tube unit and the rotating device unit can be easily attached and separated.

  Further, as the power transmission means, for example, the end of one of the rotation shafts of the rotary pressure member and the rotation shaft of the rotation device is connected to the end of the other rotation shaft. What was inserted and connected in the insertion part of a member can be used. In this case, the rotary shaft of the rotary pressure member and the rotary shaft of the rotary device are simply connected, and the rotation of the rotary shaft in the rotary device is appropriately transmitted to the rotary shaft of the rotary pressure member to rotate and pressurize. The member can be appropriately rotated.

  In the tube pump of the present invention, since the tube unit having the tube and the rotary pressurizing member in the tube housing portion and the rotating device unit having the rotating device are separated from each other, the tube and the rotational adder are placed in the tube housing portion. Position the tube unit and the rotating device unit by connecting the rotating shaft of the rotating pressure member in the tube unit with the pressure member properly set to the rotating shaft of the rotating device in the rotating device unit by the power transmission means. By simply holding the rotary pressurizing member in a state where it is connected to a predetermined position by the holding means, the rotary pressurizing member can be appropriately rotated by the rotating device, and the fluid can be stably delivered in a constant amount through the tube. become able to.

  For this reason, in the tube pump of the present invention, it is not necessary to firmly fix the tube unit and the rotating device unit at an accurate position as in the prior art, and the magnetic force between the magnet and the magnetic member as described above. It is only necessary to position and hold the tube unit and the rotating device unit by the positioning and holding means using, so that the tube unit and the rotating device unit can be easily attached or separated.

  In the tube pump of the present invention, when the tube or the like is worn, the tube unit is separated from the rotating device unit, and the rotating shaft of the rotary pressurizing member in the new tube unit is rotated as described above. The tube unit and the rotating device unit are held in a state where they are connected to a predetermined position by the positioning holding means.

  As a result, in the present invention, like a tube pump for injecting a chemical solution using a tube having a small tube diameter, it is small and excellent in portability, is easy to handle, and stabilizes a fluid in a constant amount through the tube. Even if the tube pump is required to be sent out, the tube can be replaced very easily in a short time, and even after the replacement, the fluid can be stably delivered in a constant amount through the tube. Will be able to.

  Further, in the tube pump of the present invention, the diameter of the tube along the inner wall surface of the circular tube housing portion or the rotation that rotates on the inner peripheral side of the tube and presses and deforms the tube to the inner wall surface of the tube housing portion. If several types of tube units with different diameters of the pressure member are prepared, when changing the amount of fluid to be sent through the tube, the rotation shaft of the rotary pressure member in the appropriate tube unit is used for power transmission. The fluid to be sent through the tube only by holding the tube unit and the rotating device unit in a state where they are connected to a predetermined position by the positioning holding means so as to be connected to the rotating shaft of the rotating device in the rotating device unit. It is possible to easily change the amount of the material appropriately.

The tube unit and rotation apparatus unit which are used for the tube pump which concerns on embodiment of this invention are shown, (A) is a schematic exploded perspective view of a tube unit, (B) is a schematic perspective view of a rotation apparatus unit. In the tube pump which concerns on the said embodiment, it is the schematic sectional drawing which showed the state which isolate | separated the tube unit and the rotation apparatus unit. In the tube pump which concerns on the said embodiment, it is the schematic sectional drawing which showed the state which attached the tube unit and the rotating apparatus unit. In the tube pump which concerns on the said embodiment, the eccentric rotor in the rotation pressurization member provided in the tube unit rotates eccentrically, It is the schematic top view which showed the state by which the fluid in a tube is sent out by a press member. is there. In the tube pump which concerns on the said embodiment, it is the schematic plan view which showed the example using the tube unit which set the tube etc. from which a diameter differs. In the tube pump which concerns on the said embodiment, the example of a change of the rotation pressurization member provided in a tube unit was shown, and the state in which the fluid in a tube was sent by rotating the rotation pressurization member of this change example was shown. It is a schematic plan view. The tube pump which concerns on the said embodiment WHEREIN: The example of a change of the positioning holding means to hold | maintain in the state which connected the tube unit and the rotation apparatus unit in the predetermined position is shown, (A) is the outline of the tube unit which provided the magnetic member. A bottom view and (B) are schematic plan views of a rotating device unit provided with a magnet. In the tube pump according to the above-described embodiment, the power transmission means for transmitting the rotation of the rotation shaft of the rotation device to the rotation pressure member by detachably connecting the rotation shaft of the rotation pressure member and the rotation shaft of the rotation device. (A) is a partial explanatory view showing a state in which a plurality of protrusions whose tip ends contract in a taper shape on the rotation shaft of the rotary pressurizing member are provided in the circumferential direction with a required interval therebetween. ) Is a partial explanatory view showing a state in which a pair of pins protruding in the diametrical direction is provided at the end of the rotating shaft of the rotating device, and (C) is a rotationally added pin provided at the end of the rotating shaft of the rotating device. It is the partial explanatory view showing the state where it was made to latch in the latching part between the projection parts provided in the rotating shaft of a pressure member.

  Hereinafter, a tube pump according to an embodiment of the present invention will be specifically described with reference to the accompanying drawings. The tube pump according to the present invention is not particularly limited to the one shown in the following embodiment, and can be implemented with appropriate modifications within a range not changing the gist thereof.

  In the tube pump 1 according to this embodiment, as shown in FIG. 1A, a housing 11 provided with two guide recesses 11b for guiding the tube 12 to the outside from a circular tube housing portion 11a, and a tube A tube 12 arranged in a ring shape along the inner wall surface of the accommodating portion 11a and guided to the outside of the housing 11 through the two guide recesses 11b, and rotating on the inner peripheral side of the tube 12, the tube 12 is A rotary pressure member 13 that moves a portion to be deformed by being pressed against the inner wall surface of the accommodating portion 11a, and a transparent lid 14 provided on the upper surface of the housing 11 so as to close the tube accommodating portion 11a. A rotating device comprising a tube unit 10 provided and a motor for rotating the rotary pressing member 13 as shown in FIG. And so as to separate the rotary device unit 20 having a 1.

  Further, in the tube unit 10, the rotary pressurizing member 13 includes an eccentric rotor 13b that rotates eccentrically by the rotation of the rotating shaft 13a, and a tube 12 provided on the outer periphery of the eccentric rotor 13b. One end of the rotary shaft 13a of the rotary pressurizing member 13 is rotatably held in the hole portion 14a provided in the lid body 14 while being configured by a pressing member 13c that presses, while the rotary shaft 13a The other end of the housing 11 is projected below the housing 11 through a through hole 11 c provided in the housing 11.

  On the other hand, in the rotating device unit 20, a recess 22 is provided at a position corresponding to the rotating shaft 13 a of the rotary pressure member 13 projecting under the housing 11 in the tube unit 10, and the rotating unit 20 rotates within the recess 22. The rotating shaft 21a of the device 21 is protruded.

  Here, in this embodiment, the rotary shaft 13a of the rotary pressure member 13 and the rotary shaft 21a of the rotary device 21 are detachably connected to rotate and rotate the rotary shaft 21a of the rotary device 21. As shown in FIG. 2, the power transmission means 30 for transmitting to the rotating shaft 13a of the member 13 increases the diameter of the end of the rotating shaft 13a in the rotating pressurizing member 13 projecting under the housing 11, and this While a large number of friction groove portions 31 for increasing the frictional resistance are provided on the outer periphery of the end portion, the end of the rotating shaft 21a of the rotating device 21 protruding into the recessed portion 22 of the rotating device unit 20 has a high height such as rubber having a fitting recess 32a. A connecting member 32 made of a frictional resistance material is provided.

  Then, as shown in FIG. 3, the end of the rotating shaft 13a provided with the friction groove portion 31 is fitted in the fitting recess 32a of the connecting member 32, and the rotating shaft 21a of the rotating device 21 is rotated. The rotary shaft 13a of the pressure member 13 is connected to transmit the rotation of the rotary shaft 21a in the rotating device 21 to the rotary shaft 13a of the rotary pressurizing member 13, thereby rotating the eccentric rotor 13b eccentrically.

  In this embodiment, as the power transmission means 30, the friction groove 31 is provided at the end of the rotary shaft 13a of the rotary pressurizing member 13 which has a large diameter, while the end of the rotary shaft 21a of the rotary device 21 is provided. Although the connecting member 32 having the fitting recess 32a is provided, conversely to the above case, the connecting member 32 having the fitting recess 32a is provided at the end of the rotating shaft 13a of the rotary pressure member 13, and the rotating device 21 is provided. The friction groove 31 may be provided at the end of the rotary shaft 21a.

  Further, in this embodiment, as the positioning holding means 40 for holding the tube unit 10 and the rotating device unit 20 in a state of being connected to a predetermined position, as shown in FIG. In the rotating device unit 20, positioning pins 41 made of a magnetic material are projected below the housing 11 on both sides of the bottom of the housing 11 from which the end of the rotating shaft 13 a of the rotating pressure member 13 is projected. Are provided with positioning holes 42 for inserting the positioning pins 41 at positions corresponding to the positioning pins 41 protruding from the bottom of the housing 11 in the tube unit 10, and a magnet 42 a is provided at the bottom of each positioning hole 42. Provided.

  Then, as shown in FIG. 3, each positioning pin 41 made of a magnetic material is inserted into each positioning hole 42, and each positioning pin 41 is moved by the magnetic force of the magnet 42a provided in the positioning hole 42. The tube unit 10 is locked to the positioning holes 42 so that the rotating device unit 20 is positioned and held.

  In this embodiment, as the positioning and holding means 40, the positioning pin 41 is provided in the tube unit 10 and the positioning hole 42 is provided in the rotating device unit 20, but the tube unit is contrary to the above case. While the positioning hole 42 is provided in 10, the positioning pin 41 may be provided in the rotating device unit 20.

  Then, as described above, the end of the rotating shaft 13a of the rotary pressurizing member 13 is fitted into the fitting recess 32a of the connecting member 32 provided at the end of the rotating shaft 21a of the rotating device 21. The rotary shaft 13a and the rotary shaft 21a of the rotary pressure member 13 are connected to each other, and the positioning pins 41 protruding from the bottom of the housing 11 in the tube unit 10 are inserted into the positioning holes 42 provided in the rotating device unit 20. The tube unit 10 is positioned and held by the rotating device unit 20 by being inserted and locked and held by the magnetic force of the magnet 42a, and in this state, the rotating device 21 is driven to rotate the rotating device 21. The rotary shaft 13a of the rotary pressurizing member 13 is rotated with the rotation of the shaft 13a.

  When the rotary shaft 13a of the rotary pressurizing member 13 is rotated in this way, as shown in FIG. 4, the eccentric rotor 13b in the rotary pressurizing member 13 rotates eccentrically and is provided on the outer periphery of the eccentric rotor 13b. The position at which the tube 12 is pressed against the inner wall surface of the tube housing portion 11a by the pressed member 13c and deformed moves in the circumferential direction, and the fluid in the tube 12 moves in the circumferential direction along with the movement of the pressing position by the pressing member 13c. The fluid guided and introduced into the tube 12 from one end side of the tube 12 is sent through the tube 12 and delivered from the other end side of the tube 12.

  And when this tube pump 1 is used for a certain period and the tube 12 etc. which were provided in the tube unit 10 are worn out, the connection member 32 provided at the end of the rotating shaft 21a of the rotating device 21 is fitted. The end of the rotary shaft 13a of the rotary pressurizing member 13 is extracted from the recess 32a, and the positioning pins 41 in the tube unit 10 are extracted from the positioning holes 42 provided in the rotating device unit 20. The tube unit 10 is separated from the rotating device unit 20, and the new tube unit 10 is attached to the rotating device unit 20 as described above.

  Here, in this tube pump 1, as described above, the end of the rotary shaft 13a of the rotary pressurizing member 13 is placed in the fitting recess 32a of the connecting member 32 provided at the end of the rotary shaft 21a of the rotating device 21. The rotating shaft 21a of the rotating device 21 and the rotating shaft 13a of the rotating pressure member 13 are connected to each other, and each positioning pin 41 protruding from the bottom of the housing 11 in the tube unit 10 is connected to the rotating device unit 20. Since the tube unit 10 is merely positioned and held by the rotating device unit 20 by being inserted into the respective positioning holes 42 and locked by the magnetic force of the magnet 42a, the tube unit 10 is rotated. Can be easily installed in a short time, and can be separated from the rotating device unit 20 in a short time. Also in the tube pump for infusion, the exchange of such tube 12 is so extremely easily performed in a short time.

  In the tube unit 10, the tube 12 and the rotary pressurizing member 13 are set in an appropriate state in advance. Therefore, even when the tube unit 10 is replaced, a constant amount of fluid flows through the tube 12. It will be possible to send out stably.

  Further, in the tube pump 1, when changing the amount of fluid to be sent through the tube 12, as shown in FIG. 5, a tube in which a tube 12 having a different diameter is set in the tube housing portion 11a of the housing 11 is set. If the unit 10 is prepared in advance, it is only necessary to set the tube unit 10 to the rotating device unit 20 as described above, and the amount of fluid to be delivered through the tube 12 can be easily changed. It becomes like this.

  In the tube unit 10 in this embodiment, as the rotary pressurizing member 13, an eccentric rotor 13b that rotates eccentrically on the inner peripheral side of the tube 12 by the rotation of the rotating shaft 13a, and an outer periphery of the eccentric rotor 13b are provided. Although what was provided and the press member 13c which presses the tube 12 was used, the rotary pressurization member 13 is not limited to such.

  For example, as shown in FIG. 6, a plurality of the rotary pressurizing members 13 are radially arranged from the rotating body 13 d rotating by the rotating shaft 13 a on the inner peripheral side of the tube 12 through the required angle (four in the example shown in the figure). The arm 13e can be protruded, and each arm 13e can be provided with a pressing roller 13f that presses the tube 12 respectively. In this case, when the rotating body 13d is rotated by the rotating shaft 13a, each pressing roller 13f that presses the tube 12 moves in the circumferential direction, and the fluid in the tube 12 between the pressing rollers 13f sequentially in the circumferential direction. The fluid guided and introduced into the tube 12 from one end side of the tube 12 is sent out from the other end side of the tube 12 through the tube 12.

  Further, the positioning and holding means 40 that holds the tube unit 10 and the rotating device unit 20 in a state of being connected to a predetermined position is not limited to that shown in the above embodiment.

  For example, as shown in FIGS. 7A and 7B, a magnetic member 43 is provided at the bottom of the housing 11 in the tube unit 10, while the rotating device unit 20 is arranged so as to correspond to the position of the magnetic member 43. A magnet 44 is provided on the upper surface, and the magnetic member 43 is attracted by the magnetic force of the magnet 44 so that the tube unit 10 can be positioned and held by the rotating device unit 20. Also in this case, contrary to the above case, the magnet 44 can be provided on the bottom of the housing 11, while the magnetic member 43 can be provided on the upper surface of the rotating device unit 20.

  Further, the power for transmitting the rotation of the rotation shaft 21a of the rotation device 21 to the rotation pressure member 13 by detachably connecting the rotation shaft 13a of the rotation pressure member 13 and the rotation shaft 21a of the rotation device 21. The transmission means 30 is not limited to that shown in the above embodiment.

  For example, as shown in FIG. 8A, a plurality of protrusions 33 whose tip end contracts downward from the end of the rotating shaft 13a of the rotary pressurizing member 13 in a circumferential direction with a required interval therebetween. The engaging portion 34 is formed between the protrusions 33, and a pair of pins 35 projecting in the diameter direction are provided at the end of the rotating shaft 21a of the rotating device 21 as shown in FIG. 8B. It can also be done.

  Then, when the pins 35 provided on the rotating shaft 21a of the rotating device 21 are pushed between the projections 33 on the rotating shaft 13a of the rotating pressure member 13, as shown in FIG. Further, the tapered portion of the protrusion 33 is pushed by the pin 35, and the rotation shaft 13a of the rotary pressurizing member 13 is rotated. As a result, each pin 35 is tapered in the protrusion 33. The pin 35 is engaged with the engaging part 34 between the projecting parts 33 along the portion, and the pin 35 is engaged with the engaging part 34 between the projecting parts 33, so that the rotation of the rotating shaft 21 a in the rotating device 21 is a rotational pressure member. 13 is transmitted to the rotating shaft 13a. In this case, contrary to the above case, the protrusion 33 is provided at the end of the rotating shaft 21a of the rotating device 21, while the end of the rotating shaft 13a of the rotary pressurizing member 13 is provided with the above-mentioned protrusion 33. A pin 35 can be provided.

DESCRIPTION OF SYMBOLS 1 Tube pump 10 Tube unit 11 Housing, 11a Tube accommodating part, 11b Guide recessed part, 11c Through-hole 12 Tube 13 Rotating pressure member, 13a Rotating shaft, 13b Eccentric rotor, 13c Pressing member, 13d Rotating body, 13e Arm, 13f Pressure roller 14 Lid, 14a Hole 20 Rotating device unit 21 Rotating device, 21a Rotating shaft 22 Recess 30 Power transmission means 31 Friction groove, 32 Connecting member, 32a Fitting recessed portion, 33 Protruding portion, 34 Locking portion, 35 Pin 40 Positioning and holding means 41 Positioning pin, 42 Positioning hole, 42a Magnet, 43 Magnetic member, 44 Magnet

Claims (5)

The tube is arranged in a ring shape along the inner wall surface of the circular tube housing portion, and the rotary pressurizing member is rotated by a rotating device on the inner peripheral side of the tube. In the tube pump that moves the portion to be pressed and deformed to the inner wall surface of the housing portion in the circumferential direction and sends the fluid through the tube
A tube unit including a tube and a rotation pressure member in the tube housing portion and a rotation device unit including the rotation device are configured to be separable,
The rotary shaft of the rotary pressurizing member and the rotary shaft of the rotating device are detachably connected by power transmission means,
A tube pump comprising positioning holding means for holding the tube unit and the rotating device unit in a state of being connected to a predetermined position.   2. The tube pump according to claim 1, wherein the rotary pressurizing member includes an eccentric rotor that rotates eccentrically on an inner peripheral side of the tube by rotation of a rotating shaft, and an outer periphery of the eccentric rotor. A tube pump comprising a pressing member for pressing.   3. The tube pump according to claim 1, wherein a magnet is provided as one of the tube unit and the rotating device unit as the positioning and holding means, and the other unit is magnetically attached to the magnet. A tube pump characterized by comprising   The tube pump according to any one of claims 1 to 3, wherein a positioning pin protrudes from one of the tube unit and the rotating device unit as the positioning and holding means, and the positioning to the other unit. A tube pump characterized in that a positioning hole for inserting a pin is provided, and the positioning pin is locked to the positioning hole by a magnetic force in a state where the positioning pin is inserted into the positioning hole. The tube pump according to any one of claims 1 to 4, wherein the power transmission means includes an end of one of the rotation shafts of the rotation pressurizing member and the rotation shaft of the rotation device. A tube pump, wherein the tube pump is connected by being fitted into a fitting portion of a connecting member provided at an end of the other rotating shaft.

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