JP2008057709A - Valve device and liquid feed pump with valve device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an epoch-making valve device extremely high in commercial value. <P>SOLUTION: A rotator 7 is arranged inside a valve body 3 equipped with a fluid introducing portion 1 introducing a force feed fluid A and a plurality of fluid lead-through portions 2 leading the force feed fluid A passing through inside. The rotator 7 is provided with a fluid passing portion 6 through which the force feed fluid A from the fluid introducing portion 1 passes. This rotator 7 is provided with a contact portion 9 contacting with an opening forming face 10 having openings 2a for a plurality of fluid lead-through portions 2 and one end 6b of the opening of the fluid passing portion 6 and a portion 8 to be pushed which is pushed by a force-feed fluid from the fluid introducing portion 1 and provided with the other end 6a of the opening of the fluid passing portion 6. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a valve device and a liquid supply pump with a valve device.

  Conventionally, for example, valve devices (hereinafter referred to as conventional examples) disclosed in JP-A-9-75627 and Japanese Utility Model Laid-Open No. 5-2795 have been proposed.

  In these conventional examples, a rotary body is provided in a valve body provided with a fluid introduction section for introducing a pressurized fluid and a plurality of fluid outlet sections for deriving a pressurized fluid that has passed through the interior, and the rotary fluid is rotated to rotate the pressurized fluid. It is configured such that the fluid derivation section to be switched is switched.

JP-A-9-75627 Japanese Utility Model Publication No.5-2795

  By the way, in these conventional examples, a rubber packing is arranged between the valve body and the rotating body, and while the pumped fluid introduced from the fluid introducing unit is led out from one fluid deriving unit, the pump is fed to another fluid deriving unit. It is configured to prevent the fluid from being supplied (block the pumped fluid from leaking).

  However, since rubber packing is easily worn, it is unsuitable for frequent replacement of the rubber packing when the rotating body is used with constant rotation, and rubber packing is resistance to rotation. There is a problem that a strong force is required to rotate the rotating body.

  The present invention provides an epoch-making valve device and a liquid supply pump with a valve device that solves the above-described problems and exhibits an unprecedented effect.

  The gist of the present invention will be described with reference to the accompanying drawings.

  A rotating body 7 is provided in a valve body 3 having a fluid introducing portion 1 for introducing the pumping fluid A and a plurality of fluid deriving portions 2 for deriving the pumping fluid A that has passed through the inside. A fluid passage portion 6 through which the pumping fluid A from the fluid introduction portion 1 passes is provided, and the rotating body 7 is in contact with an opening forming surface 10 on which the openings 2a of the plurality of fluid outlet portions 2 are formed. The contact portion 9 where the opening end portion 6b of the fluid passage portion 6 is formed and the pressed portion where the other end portion 6a of the fluid passage portion 6 is formed by being pressed by the pumping fluid A from the fluid introduction portion 1. 8 is provided, and the rotating body 7 is pumped by the path of the fluid introduction part 1, the fluid passage part 6 and the fluid outlet part 2 by rotating while the contact part 9 is in contact with the opening forming surface 10. The fluid A is circulated or by the contact portion 9 The rotating body 7 is configured as a valve body that switches whether to interrupt the flow of the pumped fluid A. Further, the rotating body 7 is configured such that the pressed portion 8 is pressed by the pumped fluid A, so that the contact portion of the rotating body 7 is 9 is configured so as to be brought into pressure contact with the opening forming surface 10.

  The valve device according to claim 1, wherein the opening end portion 6 b of the fluid passage portion 6 is an arc-shaped concave groove.

  The valve device according to any one of claims 1 and 2, wherein the contact portion 9 and the opening forming surface 10 are smooth surfaces with little frictional resistance. .

  The valve device according to any one of claims 1 to 3, wherein at least the contact portion 9 and the opening forming surface 10 are made of a synthetic resin.

  In addition, the liquid storage container 11 has a plurality of liquid storage containers 11 that are arranged in the liquid L and filled with the liquid L. The liquid storage container 11 contains the external liquid L by leading out the internal fluid A. A liquid introducing portion 12 having a configuration to be introduced and a liquid deriving portion 13 having a configuration in which the internal liquid L is derived by introducing the external fluid A are provided, and the fluid A is pumped to the one liquid storage container 11. The fluid A introduced and compressed from the other liquid storage container 11 is led out, and conversely, the fluid A is pumped and introduced into the other liquid storage container 11 and compressed from the one liquid storage container 11. The valve device according to any one of claims 1 to 4 is provided in a liquid supply pump P configured to derive the liquid L from each of the liquid storage containers 11 by repeatedly performing an operation of deriving A. Related to a liquid supply pump with a valve device, characterized in that It is.

  The fluid supply pump with a valve device according to claim 5, wherein the fluid lead-out portion 2 of the valve body 3 is connected to a fluid lead-in / out portion 14 that leads and leads the fluid A provided in the liquid storage container 11, The valve body 3 is provided with a fluid discharge portion 15 which opens to the opening forming surface 10 and communicates with the outside air. The fluid discharge portion 15 is connected to the rotary body via a fluid guide portion 16 provided in the rotary body 7. The fluid A is connected so as to be in a non-communication state with the other fluid deriving unit 2 when in communication with the one fluid deriving unit 2 due to the rotation of 7. Is introduced into one liquid storage container 11, the other fluid lead-out part 2 and the fluid discharge part 15 are brought into communication with each other via the fluid guiding part 16, and the other liquid storage container 11. Of the compressed fluid A is discharged and discharged from the fluid discharge portion 15, When the fluid deriving unit 2 from which the fluid A is derived by rotating the rotating body 7 is switched and the fluid A derived from the other fluid deriving unit 2 is introduced into the other liquid storage container 11, The fluid outlet 2 and the fluid outlet 15 are in communication with each other via the fluid guide 16 and the compressed fluid A of the one liquid storage container 11 is led out and discharged from the fluid outlet 15. The present invention relates to a liquid supply pump with a valve device.

  Since the present invention is configured as described above, a sealing effect that reliably prevents leakage of the pumping fluid is exerted when the contact surface between the valve main body and the rotating bodies is in press contact with each other. Packing becomes unnecessary, and various problems caused by using this packing are surely solved, and it becomes an epoch-making valve device and a liquid supply pump with a valve device that exhibit unprecedented effects. .

  An embodiment of the present invention which is considered to be suitable will be briefly described with reference to the drawings showing the operation of the present invention.

  In the present invention, when the rotating body 7 is rotated, the contact portion 9 is rotated while being in contact with the opening forming surface 10, and the pumped fluid A is circulated through the path of the fluid introduction portion 1, the fluid passage portion 6 and the fluid outlet portion 2. Or the flow of the pressurized fluid A is blocked by the contact portion 9 is switched.

  By the way, this invention is comprised so that the opening part formation surface 10 and the contact part 9 may be press-contacted by the to-be-pressed part 8 provided in the rotary body 7 being pressed by the pumping fluid A. FIG.

  That is, the pressure forming fluid A passes through one fluid deriving portion 2 because the opening forming surface 10 where the opening 2 a of the fluid deriving portion 2 is formed and the contact portion 9 of the rotating body 7 are in press contact. At this time, the pumped fluid A is prevented from leaking from the periphery of the opening 2a of the one fluid lead-out portion 2 (sealing effect), and the packing as in the conventional example described above is unnecessary, and is generated by using this packing. Various problems (problems such as replacement of packing and the necessity of strong force for rotating the rotating body) are surely solved, and the opening forming surface 10 and the contact part 9 are surely eliminated. Is made using the pressure of the pumping fluid A, so that the structure is extremely efficient.

  Specific embodiments of the present invention will be described with reference to the drawings.

  In this embodiment, a rotating body 7 is provided in a valve body 3 having a fluid introducing portion 1 for introducing a pumping fluid A and a plurality of fluid deriving portions 2 for deriving the pumping fluid A that has passed through the inside. 7 is provided with a fluid passage portion 6 through which the pumped fluid A from the fluid introduction portion 1 passes, and the rotating body 7 has openings in which the openings 2a of the plurality of fluid outlet portions 2 are formed. A contact portion 9 that is in contact with the forming surface 10 and formed with an opening end 6b of the fluid passage portion 6 and a pressure-feeding fluid A from the fluid introduction portion 1 are pressed to form the other opening portion 6a of the fluid passage portion 6. The pressed portion 8 is provided, and the rotating body 7 rotates while the contact portion 9 is in contact with the opening forming surface 10 so that the fluid introduction portion 1, the fluid passage portion 6 and the fluid lead-out portion are provided. 2 circulates the pumping fluid A through the path 2 or The rotating body 7 is configured as a valve body that switches whether the flow of the pumping fluid A is blocked by the contact portion 9. Further, the rotating body 7 is configured so that the pressed body 8 is pressed by the pumping fluid A, 7 is configured such that the contact portion 9 is brought into press contact with the opening forming surface 10.

  Hereinafter, each component according to the present embodiment will be described in detail.

  The valve body 3 is composed of a pair of half bodies (first half body 3A and second half body 3B) that are connected in a superposed state as shown in FIG.

  The first half 3A is a cylindrical body formed of an appropriate synthetic resin member (ultra high density polyethylene) as shown in FIGS. 2 and 3, and a rotating body 7 described later is arranged on the inner surface thereof. A recessed portion 3a to be provided is formed.

  On the bottom surface of the recess 3a, a recess 3b into which the protrusion 7a of the rotating body 7 is fitted is formed.

  Further, the first half 3A has a through hole 1 having one end opened on the peripheral surface and the other end opened in the recess 3a. The through hole 1 is pumped to the outer opening 1a. A compressed air supply device 24 for supplying A (compressed air) is connected and configured as a fluid introducing portion 1 for introducing the compressed air A into the recess 3a. The pressurized fluid A is not limited to compressed air, and can be appropriately adopted.

  The first half 3A has a through hole 3c having one end opened at the center of the outer surface and the other end opened in the recess 3a. The through hole 3c is connected to the rotating body 7. The drive shaft portion 17a of the drive device 17 (motor) is inserted.

  Reference numeral 3d denotes a connecting hole for connecting to the second half 3B via a connecting member 18 (bolt, nut).

  The second half 3B is a cylindrical body formed of an appropriate synthetic resin member (ultra high density polyethylene) as shown in FIGS. 2 and 3, and a flat surface is formed on the upper surface thereof. The flat surface is an opening forming surface 10 in which an opening 2a of the fluid outlet portion 2 and an opening 15a of the fluid discharge portion 15 described later are formed, and the opening forming surface 10 is subjected to a smooth surface treatment. .

  Therefore, the frictional resistance with the contact portion 9 of the rotating body 7 that is in press contact with the opening forming surface 10 is extremely low, and smooth rotation of the rotating body 7 is achieved. In the present embodiment, a synthetic resin of a different material is selected as a material constituting the opening forming surface 10 of the second half 3B and the contact portion 9 of the rotating body 7, and this also achieves smooth rotation. ing.

  Also, three through holes are formed with one end opened at the center position of the upper surface (flat surface) of the second half 3B and its left and right positions, and the other end opened at the center position of the lower surface and its left and right positions.

  Of these three through holes, a through hole formed at the center position is configured as a fluid discharge portion 15 described later, and two through holes formed at the left and right positions of the air discharge portion 15 are configured as a fluid outlet portion 2. Has been.

  As shown in FIGS. 2 and 3, the fluid discharge portion 15 receives compressed air A sent from the fluid outlet portion 2 through the fluid guide portion 16 provided in the rotating body 7 described later from the opening portion 15a. The compressed air A is discharged from the portion 15b to the outside (outside air) of the valve body 3 (second half 3B).

  The fluid outlet 2 is configured so that compressed air A that has passed through a fluid passage 16 of the rotating body 7 described later is supplied to the opening 2a, and the compressed air A is led out from the opening 2b.

  The opening 2a is an opening 2a to which the compressed air A is supplied, and the opening 2b is a part to which a fluid lead-in / out part 14 of a liquid supply pump P described later is connected.

  Reference numeral 3e denotes a connection hole for connecting the first half 3A via a connection member 18 (bolts and nuts).

  The rotating body 7 is a cylindrical body formed of an appropriate synthetic resin member (polyacetal) as shown in FIGS. 2 and 3, and is rotatably disposed in the recess 3a of the first half 3A described above. It is configured to be able to. Reference numeral 20 denotes a sealing material disposed between the inner surface of the recess 3a.

  Further, the rotating body 7 is provided with a protruding portion 7a at the center of the upper surface thereof, and this protruding portion 7a is rotatably fitted to a recessed portion 3b formed on the bottom surface of the recessed portion 3a of the first half 3A. Become.

  Reference numeral 21 denotes a sealing material disposed between the bottom surface of the recess 3b.

  When the protrusion 7a is fitted into the recess 3b, a fluid filling space S with a predetermined interval is formed between the bottom surface of the recess 3a and the upper surface of the rotating body 7 (around the protrusion 7a).

  The fluid filling space S is a portion where the compressed air A introduced from the fluid introducing portion 1 is filled, and the upper surface of the rotating body 7 is a pressed portion 8 that is pressed by the compressed air A.

  Therefore, when the pressed portion 8 is pressed by the compressed air A, the lower surface (the contact portion 9 described later) of the rotating body 7 comes into pressure contact with the opening forming surface 10 of the second half 3B.

  Further, the rotary body 7 has a non-circular recess 7a ′ in a plan view in the center position of the protrusion 7a, and the recess 7a ′ is fitted to the drive shaft 17a of the drive device 17 in a non-rotating state. It is comprised as a connection part to insert and connect.

  Therefore, the rotating body 7 rotates in the recess 3a of the first half 3A by the operation of the driving device 17.

  Further, the rotating body 7 has a flat surface formed on the lower surface thereof, and this flat surface is in contact with the opening forming surface 10 of the second half 3B described above to prevent the supply of the compressed air A to the opening 2a. This contact portion 9 is subjected to a smooth surface treatment.

  In addition, the rotating body 7 has a through hole having one end opened on the upper surface (position near the periphery of the protruding portion 7 a) and the other end opened on the lower surface. The through hole is introduced from the fluid introducing portion 1. The compressed air A is configured as a fluid passage 6 through which the compressed air A passes.

  The fluid passage portion 6 has an opening one end portion 6a that opens into the fluid filling space S described above, and an opening other end portion 6b that opens into the contact portion 9 described above. The compressed air A is led out from the fluid lead-out part 2 which is provided at a position coincident with the opening 2a of the part 2 and coincides with the other open end 6b.

  The other end opening 6b is formed in a concave groove shape having an arc shape when viewed from the front, and this is continuously compressed air A from the one opening 2a in a predetermined rotation range in which the rotating body 7 rotates. And the compressed air A is continuously supplied from the other opening 2a in the remaining rotation range. At this time, the supply of compressed air A is blocked by the contact portion 9 of the rotating body 7 in the opening 2 a where the other end opening 6 b of the fluid passage portion 6 does not match and the compressed air A is not supplied.

  Further, a fluid guiding portion 16 is provided in the contact portion 9 of the rotating body 7.

  As shown in FIG. 3, the fluid guiding portion 16 is a fan-shaped concave portion that extends radially from the central portion of the contact portion 9, and when the contact portion 9 and the opening forming surface 2a are superposed, the central portion 16a. Corresponds to the opening 15a of the air discharge part 15, and its peripheral part 16b is configured to match the opening 2a of the fluid outlet part 2. The compressed air A sent from the liquid supply pump P described later is From the opening 2a through the fluid passage 16 (space between the recess formed in the contact portion 9 and the opening forming surface 2a) and the fluid discharge part 15, the outside of the valve body 3 (second half 3B). It is discharged into (outside air).

  Specifically, the compressed air A sent from the liquid supply pump P is discharged to the outside because the one opening 2a and the fluid guiding portion 16 coincide with each other in a predetermined rotation range in which the rotating body 7 rotates. The compressed air A sent from the one opening portion 2a is discharged from the fluid discharge portion 15, and in the remaining rotation range, the other opening portion 2a and the fluid guiding portion 16 coincide with each other, The compressed air A sent from the opening 2a is discharged from the fluid discharge portion 15.

  The operation of the valve device V having the above configuration will be described.

  When the rotating body 7 is rotated by the driving device 17, the compressed air A introduced from the fluid introduction unit 1 passes through the fluid passage part 6 of the rotating body 7 and is supplied to the one fluid outlet part 2. The fluid is led out from the fluid outlet 2 to the outside of the valve body 3. At this time, the other fluid deriving unit 2 is in communication with the outside (outside air) of the valve body 3 via the fluid guiding unit 16 and the fluid discharging unit 15.

  Further, when the rotating body 7 is further rotated, the compressed air A introduced from the fluid introducing section 1 passes through the fluid passage section 6 of the rotating body 7 and is supplied to the other fluid deriving section 2, and the other fluid deriving section 2 is introduced. It will be led out of the valve body 3 from the part 2. At this time, the one fluid lead-out portion 2 is in communication with the outside (outside air) of the valve body 3 through the fluid guide portion 16 and the fluid discharge portion 15.

  As described above, the fluid deriving unit 2 from which the compressed air A is derived by the rotation of the rotating body 7 is switched, and when the fluid deriving unit 2 of the compressed air A by the rotation of the rotating body 7 is sequentially switched, the rotating unit 7 is always pressed by the compressed air A, and the contact portion 9 of the rotating body 7 and the opening forming surface 10 of the second half 3B are in a pressing contact state, so that the compressed air A is supplied. The supply of the compressed air A to the fluid lead-out unit 2 that is not performed is reliably prevented.

  Since the present embodiment is configured as described above, an opening forming surface 10 where the opening 2a of the fluid outlet 2 is formed and the contact portion 9 of the rotating body 7 are in press contact with each other, so that one fluid outlet While the pumping fluid A passes through 2, the sealing effect of preventing leakage of the pumping fluid A between the opening 2a of the one fluid outlet 2 and the opening 2a of the other fluid outlet 2 is exhibited. Therefore, the packing as in the conventional example described above is not necessary, and various problems caused by using this packing (a strong force for exchanging the packing and rotating the rotating body is required. And the like, and the pressing contact between the opening forming surface 10 and the contact portion 9 is performed using the pressure of the pumping fluid A, so that the structure is extremely efficient. It becomes.

  Further, in this embodiment, since the contact portion 9 and the opening forming surface 10 are smooth surfaces having a small frictional resistance, the rotating body 7 can be smoothly rotated while reliably exhibiting the seal structure.

  Further, in this embodiment, since at least the contact portion 9 and the opening forming surface 10 are made of synthetic resin and different synthetic resins are used, the rotating body 7 can be rotated more smoothly.

  In this embodiment, the valve device V having the above-described configuration is provided in the liquid supply pump P.

  The liquid supply pump P has a plurality of liquid storage containers 11 which are arranged in the liquid L as shown in FIGS. 1, 6 and 7 and are filled with the liquid L. The liquid storage container 11 includes A liquid introduction section 12 configured to introduce the external liquid L by deriving the internal fluid A, and a liquid output section 13 configured to derive the internal liquid L by introducing the external fluid A. Provided, pumps and introduces the fluid A into one of the liquid storage containers 11 and leads out the compressed fluid A from the other liquid storage containers 11, and conversely, supplies the fluid A to the other liquid storage containers 11. The liquid L is derived from each of the liquid storage containers 11 by repeatedly performing the operation of introducing the pressure and discharging the compressed fluid A from the one liquid storage container 11.

  The liquid introduction part 12 is provided in the lower part of the liquid storage container 11, and is configured such that when the air pressure in the liquid storage container 11 decreases, the valve body 22 rises and the liquid L is introduced therein.

  The liquid outlet 13 is a tubular body projecting from the lower part of the liquid storage container 11, and a spherical valve element 23 (check valve) is connected to a portion connected to the liquid outlet 13 provided in the other liquid storage 11 ) Is provided.

  When the liquid L is led out from one liquid outlet 13, the valve body 23 opens the one liquid outlet 13 and allows the liquid L to pass. At this time, the other liquid outlet 13 is closed by the valve body 23 and the passage of the liquid L is blocked.

  The connected portions of the liquid outlets 13 are connected to various devices (not shown) that require supply of the liquid L (for example, a mold provided with a cooling water passage).

  In addition, each liquid storage container 11 is provided with a fluid lead-in / out part 14 at an upper part thereof, and is connected to each of the fluid lead-out parts 2 of the valve device V.

  In the liquid storage container 11 on the side from which the compressed air A is derived from the fluid outlet 2 of the valve device V, the compressed air A is introduced into the liquid storage container 11, In the liquid storage container 11 on the side where the compressed air A is not led out, the inside of the liquid storage container 11 is in communication with the outside air through the fluid lead-out part 2, the fluid guide part 16 and the fluid discharge part 15, While the liquid L is introduced into the liquid storage container 11, the compressed air A in the liquid storage container 11 is discharged to the outside (outside air).

  As described above, introduction and derivation of the liquid L to and from the liquid storage container 11 are performed by introduction and derivation of the compressed air A to and from the liquid storage container 11.

  Since the present embodiment is configured as described above, the liquid L is efficiently supplied using the compressed air A, and the rotating body 7 is driven by the driving device 17 provided in the valve device V. Since the control of the compressed air A can be achieved simply by rotating it, a complicated structure (control means such as a timer and a solenoid valve, which has been indispensable in the past) is not required for the control of the compressed air A. The cost is lower and the running cost is lower.

  Note that the present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.

It is a perspective view which shows the liquid supply pump with a valve apparatus which concerns on a present Example. It is a disassembled perspective view of the valve apparatus which concerns on a present Example. It is a disassembled perspective view of the valve apparatus which concerns on a present Example. It is explanatory drawing of the principal part of the valve apparatus which concerns on a present Example. It is operation | movement explanatory drawing of the principal part of the valve apparatus which concerns on a present Example. It is operation | movement explanatory drawing of the liquid supply pump with a valve apparatus which concerns on a present Example. It is operation | movement explanatory drawing of the liquid supply pump with a valve apparatus which concerns on a present Example.

Explanation of symbols

L Liquid A Pressure fluid P Liquid supply pump 1 Fluid introduction part 2 Fluid lead-out part 2a Opening part 3 Valve body 6 Fluid passage part 6a Opening other end part 6b Opening one end part 7 Rotating body 8 Pressed part 9 Contact part
10 Opening surface
11 Liquid container
12 Liquid inlet
13 Liquid outlet
14 Fluid outlet / inlet
15 Fluid discharge part
16 Fluid guide

Claims (6)

  A rotating body is provided in a valve body provided with a fluid introducing portion for introducing a pumping fluid and a plurality of fluid deriving portions for deriving the pumping fluid that has passed through the inside, and the rotating body includes a pumping fluid from the fluid introducing portion. A fluid passage portion through which the fluid passes, and the rotating body is in contact with an opening forming surface on which each of the plurality of fluid outlet portions is formed and an opening end portion of the fluid passage portion is formed. And a pressed portion that is pressed by the pumping fluid from the fluid introduction portion and formed at the other end of the opening of the fluid passage portion, and the rotating body has the contact portion in contact with the opening forming surface. It is configured as a valve body that switches between rotating the pressure-feeding fluid through the path of the fluid introduction portion, the fluid passage portion, and the fluid outlet portion by rotating, or blocking the flow of the pressure-feeding fluid by the contact portion. And In addition, the rotating body is configured such that the contact portion of the rotating body is pressed and brought into contact with the opening forming surface when the pressed portion is pressed by the pumping fluid. apparatus.   The valve device according to claim 1, wherein one end of the opening of the fluid passage portion is an arc-shaped concave groove.   3. The valve device according to claim 1, wherein the contact portion and the opening forming surface are smooth surfaces having a small frictional resistance.   The valve device according to any one of claims 1 to 3, wherein at least the contact portion and the opening forming surface are made of a synthetic resin.   A liquid introduction section that is arranged in a liquid and has a plurality of liquid storage containers filled with the liquid, and the liquid storage section is configured to introduce the external liquid by deriving the internal fluid. And a liquid outlet portion configured to lead out an internal liquid by introducing an external fluid, the fluid being pumped into one of the liquid storage containers and compressed from the other liquid storage container On the contrary, the liquid is derived from each of the liquid storage containers by repeatedly performing the operation of pumping and introducing the fluid to the other liquid storage containers and deriving the compressed fluid from the one liquid storage container. A liquid supply pump with a valve device, wherein the liquid supply pump configured to perform the valve device according to any one of claims 1 to 4. 6. The liquid supply pump with a valve device according to claim 5, wherein the fluid lead-out portion of the valve main body is connected to a fluid lead-in / lead-out portion for introducing and introducing the fluid provided in the liquid storage container, and the valve main body has an opening portion. A fluid discharge portion that is open on the formation surface and communicates with the outside air is provided, and the fluid discharge portion is in communication with the one fluid lead-out portion by rotation of the rotating body through a fluid guide portion provided in the rotating body. When the fluid derived from one fluid deriving unit is introduced into one liquid storage container, the other fluid deriving unit is connected to the other fluid deriving unit so as not to communicate with the other fluid deriving unit. And the fluid discharge portion are in communication with each other via the fluid guide portion, and the compressed fluid of the other liquid storage container is led out and discharged from the fluid discharge portion, while the rotating body is Fluid guide through which fluid is derived by rotation When the fluid is derived from the other fluid outlet and the fluid is introduced into the other liquid storage container, the one fluid outlet and the fluid outlet are in communication with each other via the fluid guide. In addition, the fluid supply pump with a valve device is configured such that the compressed fluid of the one liquid storage container is led out and discharged from the fluid discharge portion.

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