JP6646435B2 - Fluid mixing device - Google Patents

Description

  The present invention relates to a fluid mixing device.

  Conventionally, as a technique relating to a fluid mixing device, for example, those disclosed in Patent Documents 1 to 3 and the like have already been proposed.

  Patent Literature 1 is a fluid mixing device that mixes respective fluids flowing in at least two supply lines at an arbitrary ratio. Each of the supply lines changes a flow rate of a fluid by changing an opening area of a flow path. A fluid control valve to control, a flow meter that measures the actual flow rate of the fluid, converts the measured value of the actual flow rate into an electric signal, and outputs the signal, based on a deviation between the measured value of the actual flow rate and the set flow rate value, The control unit outputs a command signal for controlling the opening area of the fluid control valve to the fluid control valve or a device that operates the fluid control valve.

  Patent Literature 1 includes a mode in which the various valves and the flow rate measuring device are provided in one base block, and the base block is formed of, for example, metal in a rectangular parallelepiped shape.

  Patent Document 2 discloses a manifold base having a valve mounting surface for mounting an electromagnetic valve, an electromagnetic valve mounted on the valve mounting surface, a stop valve base connected to the manifold base, and a stop valve base. A stop valve attached thereto, wherein the manifold base has a supply flow path and a discharge flow path extending inside the manifold base, and branches off from the supply flow path and the discharge flow path to open on the valve mounting surface. The supply communication hole and the discharge communication hole, and the supply communication hole is formed so as to reach the valve mounting surface via the stop valve base, and is provided in the stop valve base. Is a first operation in which the stop valve is formed on the stop valve mounting surface, and the stop valve opens and closes the supply communication hole by a push-pull operation from the side where the solenoid valve is interposed. And a second operating position to close the position and the communicating hole is obtained by construction as attached to switchable made.

  The manifold base is formed of, for example, a unidirectionally long block having a rectangular or similar cross-sectional shape made of metal.

  Patent Literature 3 includes a pair of die-cast end manifolds having the same shape, each end manifold having a body connected to a first connecting surface that can be connected to each other, and a pipe facing the first connecting surface. It has a connection surface, a first valve mounting surface for mounting an electromagnetic valve formed on the upper surface, a collective supply flow path having a circular cross section that opens on the pipe connection surface, and an opening on the first connection surface. A first supply communication passage extending vertically to the inside of the valve mounting surface, a collective discharge flow passage having a circular cross section on both sides of the collective supply flow passage, and a first supply communication passage in the first connection surface. And a first discharge communication passage having a laterally long cross-section and opening to both sides of the first valve mounting surface and communicating with each other in the body, and an individual supply opening to the first valve mounting surface. For individual discharge on the through hole and both sides Holes communicate with the first supply communication passage and the first discharge communication passages on both sides of the first supply communication passage, and each of the flow passages opening on the pipe connection surface, each of the communication passages opening on the first connection surface, And each of the through-holes opening in the first valve mounting surface is formed so as to extend linearly perpendicular to the surface of the body where they are provided, and the individual supply through-holes in the first valve mounting surface and the respective through-holes. The interval between the individual discharge through-holes on both sides is smaller than the interval between the collective supply flow path and the collective discharge flow path on the pipe connection surface, and has a horizontally long cross section located on both sides of the first supply communication path. Each of the first discharge communication passages is configured to be formed in a horizontally long shape that communicates with both the collective discharge flow path and the individual discharge through holes on both sides.

  The pair of end manifolds are die-cast in the same shape.

JP 2007-175690 A JP 2008-309262 A JP 2009-257554 A

  An object of the present invention is to provide a fluid mixing device in which the device main body has sufficient strength as compared with a case where the device main body is formed of a metal or a synthetic resin into a rectangular parallelepiped shape and can reduce the cost of the device. And

According to the first aspect of the present invention, a first flow path having a first inlet into which a first fluid flows and a first outlet through which the first fluid flows, and a second fluid flows into the first flow path. Synthetic resin device body integrally formed with a second inlet and a second channel having a mixing outlet for mixing the second fluid with the first fluid flowing through the first channel. When,
An on-off valve mounted on a mounting portion of the apparatus main body to open and close the second flow path,
The apparatus main body includes a first reinforcing rib provided to protrude from the apparatus main body, the first reinforcing rib reinforcing base ends of the first inlet and the first outlet, and a second reinforcing rib reinforcing the mounting portion. Is a fluid mixing device, wherein

According to a second aspect of the present invention, a first flow path having a first inlet into which a first fluid flows and a first outlet through which the first fluid flows, and a second fluid flows into the first flow path. Synthetic resin device body integrally formed with a second inlet and a second channel having a mixing outlet for mixing the second fluid with the first fluid flowing through the first channel. When,
An on-off valve mounted on a mounting portion of the apparatus main body to open and close the second flow path,
The apparatus main body includes a first reinforcing rib that opposes an external force acting on a base end of the first inflow port and the first outflow port in a circumferential direction, and a self-weight of the on-off valve that acts on the mounting portion. A fluid mixing device having a second reinforcing rib which is opposed to the fluid mixing device.

According to a third aspect of the present invention, a first flow path having a first inlet through which a first fluid flows and a first outlet through which the first fluid flows, and a second fluid flows into the first flow path. Synthetic resin device body integrally formed with a second inlet and a second channel having a mixing outlet for mixing the second fluid with the first fluid flowing through the first channel. When,
An on-off valve mounted on a mounting portion of the apparatus main body to open and close the second flow path,
The apparatus body includes a first reinforcing rib for reinforcing base ends of the first inlet and the first outlet, a second reinforcing rib for reinforcing the mounting portion, and reinforcing the first flow path. A fluid mixing device, comprising: a third reinforcing rib integrally formed; and a fourth reinforcing rib for reinforcing at least a part of the second flow path.

  The invention described in claim 4 is the fluid mixing device according to any one of claims 1 to 3, wherein a valve seat of the on-off valve is formed integrally with the mounting portion. is there.

  The invention described in claim 5 is the fluid mixing device according to any one of claims 1 to 4, wherein the on-off valve controls the flow rate of the second fluid.

  In the invention described in claim 6, the second reinforcing rib is formed in a substantially cylindrical shape in a plane so as to surround the cylindrical portion and a cylindrical portion formed concentrically with a valve seat of the on-off valve. The fluid mixing device according to claim 4, further comprising a rectangular portion, and a connecting portion that radially connects the cylindrical portion and the rectangular portion.

In the invention described in claim 7, the apparatus main body has a base plate portion formed in a flat plate shape,
The first inflow port, the first outflow port, and the mounting portion are integrally formed on one surface of the base plate portion,
The fluid mixing device according to any one of claims 1 to 6, wherein the first flow path and the second flow path are integrally formed on the other surface of the base plate portion. .

The invention described in claim 8 includes the first flow path forming section that forms the first flow path and the second flow path forming section that forms the second flow path,
The first flow path forming part and the second flow path forming part are arranged so as to partially overlap each other along the longitudinal direction of the fluid mixing device main body, and the first flow path forming part and the second flow path forming part The fluid mixing device according to any one of claims 1 to 7, wherein the two flow path forming portions are opened at opposite ends along a longitudinal direction of the device main body.

  In the invention described in claim 9, the first reinforcing rib extends at a base end of the first inflow port and the first outflow port in a longitudinal direction of the device main body and a direction intersecting the longitudinal direction. The fluid mixing device according to any one of claims 1 to 8, wherein the fluid mixing device is provided to perform the following.

In the invention described in claim 10, the fluid mixing device main body includes a first on-off valve for opening and closing the second fluid flowing into the second flow path,
A second on-off valve for opening and closing the second fluid mixed with the first fluid;
The fluid mixing device according to any one of claims 1 to 9, further comprising:

  The invention described in claim 11 is characterized in that the device main body has a connecting portion that can connect the device main body to each other along a direction intersecting the longitudinal direction. It is a fluid mixing device of the description.

  ADVANTAGE OF THE INVENTION According to this invention, compared with the case where an apparatus main body is formed in the shape of a rectangular parallelepiped by metal or synthetic resin, the apparatus main body has sufficient intensity | strength and provides the fluid mixing apparatus which can reduce the cost of an apparatus. Can be provided.

FIG. 1 is an external perspective view showing a manifold type solenoid valve device for fluid mixing as an example of a fluid mixing device according to Embodiment 1 of the present invention. 1 is an exploded perspective view showing a manifold type solenoid valve device for fluid mixing as an example of a fluid mixing device according to Embodiment 1 of the present invention. FIG. 1 is a plan view and a longitudinal sectional view showing a manifold type solenoid valve device for fluid mixing as an example of a fluid mixing device according to Embodiment 1 of the present invention. It is a left side view, a bottom view, and a right side view showing a manifold type solenoid valve device for fluid mixing as an example of the fluid mixing device according to Embodiment 1 of the present invention. It is a longitudinal section showing a 1st solenoid valve. FIG. 3 is a cross-sectional view showing a main part of the first solenoid valve. FIG. 3 is a cross-sectional view showing a main part of the first solenoid valve. It is an exploded perspective view showing a diaphragm and a ground. It is a top view showing the state where two manifold type solenoid valve devices were connected. It is a principal part perspective view which shows the structure of a 3rd mounting part. It is a principal part perspective view which shows the structure of a 3rd mounting part. FIG. 3 is a perspective configuration diagram illustrating a reinforcing rib of the apparatus main body. FIG. 3 is a perspective configuration diagram illustrating a reinforcing rib of the apparatus main body. It is a chart and a graph showing a result of numerical analysis. It is a chart and a graph showing a result of numerical analysis. FIG. 9 is a front configuration diagram showing a manifold type solenoid valve device for fluid mixing as an example of a fluid mixing device according to Embodiment 2 of the present invention.

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

[Embodiment 1]
FIG. 1 is an external perspective view showing a manifold type solenoid valve device for fluid mixing as an example of a fluid mixing device according to Embodiment 1 of the present invention, FIG. 2 is an exploded perspective view thereof, FIG. 4 is a left side view, a bottom view, and a right side view of the same.

  The manifold type solenoid valve device 1 is configured as a manifold type solenoid valve device that mixes a first fluid and a second fluid at a predetermined timing. As shown in FIG. 1, the manifold type solenoid valve device 1 has a first inlet 2 into which a main liquid as a first fluid flows, and a first outlet 3 from which a main liquid flows out. The flow path 4, a second inlet 5 into which the second fluid flows, and a mixing outlet 6 for mixing the second fluid with the main liquid flowing through the first flow path 4 (see FIG. 3B). A device main body 8 made of a synthetic resin integrally formed with a second flow path 7 and a second valve as an example of an on-off valve mounted on the device main body 8 to open and close the second flow path 7 at different positions. A first and second solenoid valves 9 and 10;

  The device main body 8 is integrally formed of an injection-molded synthetic resin. As the synthetic resin for forming the device body 8, for example, various materials such as polyphenylene sulfide (PPS) and polyetheretherketone (PEEK) can be used. It is desirable to select in consideration of insulation, heat resistance, chemical resistance, self-extinguishing properties (flame retardancy), and the like.

  As shown in FIGS. 3 and 4, the device main body 8 includes a base plate portion 11 formed in an elongated flat rectangular plate shape corresponding to the planar shape of the manifold type solenoid valve device 1 and having a predetermined thickness t1. Have. A cylindrical first inlet 2 and a cylindrical first outlet 3 are integrally formed on an upper surface (surface) 11a of the base plate portion 11 so as to project vertically upward. Hereinafter, the configuration of each unit of the apparatus main body 8 will be described. However, even when it is not particularly referred to as “integral”, all components of each unit configuring the apparatus main body 8 are formed integrally with the apparatus main body 8. Is what it is.

  The first inflow port 2 is arranged at one end of the base plate 8 along the longitudinal direction. Further, the first outlet 3 is disposed between the second solenoid valve 10 and the first solenoid valve 9 on the other end side along the longitudinal direction of the base plate portion 8. The upper end portions 2a and 3a of the first inlet 2 and the first outlet 3 are formed to have a larger outer diameter than the middle portion and to be thick so that a tube (not shown) can be press-fitted and mounted. I have. The upper ends 2b and 3b of the first inflow port 2 and the first outflow port 3 are formed in a tapered shape to facilitate press-fitting of a tube (not shown).

  The proximal ends (lower ends) 2c and 3c of the first inlet 2 and the first outlet 3 are formed to have a larger outer diameter than other portions and have a greater thickness over a predetermined height h1, and are reinforced. The base portions 2c, 3c of the first inflow port 2 and the first outflow port 3 have a predetermined thickness t2 (for reinforcing the base ends 2c, 3c of the first inflow port 2 and the first outflow port 3). For example, the first reinforcing ribs 12 and 13 having a plate shape having a thickness of about 4 mm) are provided. The first reinforcing ribs 12 and 13 are arranged in a cross shape on the upper surface 11 a of the base plate 11 so as to be orthogonal to each other along the longitudinal direction and the short direction of the base plate 11. The first reinforcing ribs 12 in the longitudinal direction are provided in an erect flat plate shape having a predetermined thickness t2 and a height h over the entire length along the longitudinal direction of the base plate portion 11. The first reinforcing ribs 13 in the short direction are provided in a flat plate shape having a predetermined thickness t2 and a predetermined height h over the entire width along the short direction of the base plate portion 11. . The first reinforcing ribs 12 and 13 are arranged in a cross shape so as to be orthogonal to each other along the longitudinal direction and the transverse direction of the base plate portion 11. It may be further arranged so as to form a predetermined angle such as 45 degrees between them.

  The first reinforcing ribs 12 and 13 are for reinforcing the first inlet 2 and the first outlet 3. An operating force for press-fitting or pulling out a tube (not shown) from the first inlet 2 and the first outlet 3 directly acts on the first inlet 2 and the first outlet 3. The operating force at the time of press-fitting the tube mainly includes a pressing force for pressing the first inflow port 2 and the first outflow port 3 along the longitudinal direction and a rotational force (twisting) for rotating the tube while holding the tube. Power).

  Further, first and second mounting portions 14 and 15 for mounting the first and second solenoid valves 9 and 10 are provided on the upper surface 11a of the base plate portion 11. These first and second mounting portions 14 and 15 have the same configuration. Here, the first mounting portion 14 will be described as a representative, and the description of the second mounting portion 15 will be omitted by adding the same reference numeral to the same reference numeral and suffix “2”.

Center of the first mounting portion 14 constitutes a valve body 16 ₁ of the first electromagnetic valve 9. The valve body 16 of the _first mounting portion 14, as shown in FIG. 3, the first and second recesses 17 formed in a cylindrical shape _1, 18 ₁ are formed concentrically. First recess 17 ₁ is smaller than the recess 18 ₁ is in the second diameter, and the depth is set deeper than the second recess 18 _1. Second recess 18 ₁ is disposed in first recess 17 ₁ of the upper. Second recess 18 _1, for example, is formed by a cylindrical portion 19 ₁ which protrudes to have the same height as the first reinforcing rib 12, 13 on the upper surface 11a of the base plate portion 11. The first recess 17 _1, for example, is formed by a cylindrical portion 20 ₁ to the lower surface 11b is formed so as to protrude downward of the base plate portion 11.

The bottom portion 21 ₁ of the first recess 17 _1, the valve seat 22 of the _first solenoid valve 9 is formed so as to protrude upward in a cylindrical shape. The upper end of the valve seat 22 ₁ is positioned lower than the _first upper first recess 17. At the center of the valve seat 22 _1, as shown in FIG. 3 (b), communication holes 23 ₁ that communicates with the second inlet port 5 is opened. Further, the first inner peripheral wall of the recess 17 _1, as shown in FIG. 5, the opening 24 is provided which communicates with the second flow path 7. Further, the first inner peripheral wall of the recess 17 ₂ in the second mounting portion 15, a mixing outlet 6 as an opening communicating with the second flow path 7 is provided.

Further, the upper end portion 17 ₁ a of the first recess 17 ₁ protrudes in a cylindrical shape above the bottom 25 ₁ of the second recess 18 _1. At the bottom 25 ₁ of the second recess 18 ₁ is partitioned by a first recess 17 ₁ of the upper end portion 17 ₁ a, as will be described later, a recess for accommodating the like diaphragm 33 of the first solenoid valve 9 formed Have been.

  The first and second solenoid valves 9 and 10 have the same configuration. Here, the first solenoid valve 9 will be described as a representative, and the description of the second solenoid valve 10 will be omitted by giving the same reference numeral a suffix “2”.

First electromagnetic valve 9, as shown in FIG. 6, roughly, an electromagnetic solenoid 26 _1, a valve body 27 ₁ attached to the protrusion 26 1 _a provided at the lower end of the electromagnetic solenoid 26 ₁ And a valve body 16 provided integrally with the apparatus body 8. Electromagnetic solenoid 26 ₁ has a casing 28 ₁ made of a magnetic material, the stationary core and coil 29 ₁ wound into a cylindrical shape to the bobbin 29 1 _a, made of a magnetic material cylindrical disposed in the center of the coil 29 ₁ 30 _1, likewise made of a magnetic material of cylindrical shape disposed in the center of the coil 29 _1, the fixed core 30 _first movable core is urged downward by a spring 31 ₁ wound on the outer periphery is arranged below and a 32 ₁ and. The valve element 27 ₁ is mounted on the projecting portion 26 1 _a provided so as to protrude to the lower end of the movable core 32 _1. The valve element 27 ₁ are usually in contact with the valve seat 22 ₁ by the movable core 32 ₁ is urged downward by a spring 31 _1, the communication hole 23 ₁ provided so as to penetrate the inside of the valve seat 22 ₁ Is closed. In the second solenoid valve 10, it is provided so as to penetrate the inside of the valve seat 22 _2, and communicates with the interior bore 23 ₂ communicating the first flow path 4 of the first recess 17 is provided I have.

The valve body 16 _1, as described above, is provided integrally with the apparatus main body 8. The apparatus main body 8 constituting the valve body 16 _1, as shown in FIGS. 6 and 7, the opening communicating with the second flow path 7 to the inner peripheral wall of the first bottom portion 21 ₁ near the recess 17 ₁ 24 Is provided. Further, the first inner peripheral wall of the recess 17 ₂ in the second mounting portion 15, as described above, mixing outlet 6 as an opening communicating with the second flow path 7 is provided. In the state in which the valve element 27 ₁ is moved upward (electromagnetic solenoid ₂₆₁ is in the ON state), the addition liquid as the second fluid from the valve seat 22 ₁ flowing from the second inlet port 5 to the communication hole 23 ₁ second It flows into the inside of _one recess 171 and flows into the second flow path 7 from the opening 24.

The second recess 18 _1, the diaphragm 33 ₁ is housed. The diaphragm 33 _1, as shown in FIG. 8, are integrally formed with the valve element 27 _1. The diaphragm 33 _1, a U-shaped cross section of the elastically deformable portion 33 ₁ a so as to follow the vertical movement of the valve body 27 ₁ is provided annularly outer periphery of the valve body 27 _1. A concave groove portion 33 ₁ b is formed inside the elastically deforming portion 33 ₁ a. Further, on the outer peripheral edge of the diaphragm 33 _1, lower surface flange portion 33 1 _c which is formed flat it is provided. The diaphragm 33 _1, as shown in FIGS. 6 and 7, is attached to the second recess 18 ₁ in a state of being sandwiched by the valve body 16 and the annular ground 34 _1. Grand 34 _1, circular through holes 34 ₁ a is opened in a position corresponding to the elastic deformation part 33 ₁ a of the diaphragm 33 _1. The lower end surface of the flange portion 33 1 _c of the diaphragm 33 _1, as described above, are formed flat, fitted by press-fitting the second recess 18 _1, the valve by placing the ground 34 ₁ thereabove It is mounted in a fixed state inside the main body 16.

  As shown in FIGS. 3 and 5, first and second solenoid valves 9, 10 acting on the first and second mounting portions 14, 15 are provided on the first and second mounting portions 14, 15. The second reinforcing rib 35 is provided to oppose the own weight of the first and second solenoid valves 9 and 10, and the like. The operating force of the first and second solenoid valves 9 and 10 is significantly greater than the weight of the first and second solenoid valves 9 and 10 acting on the first and second mounting portions 14 and 15. Therefore, usually, only the own weight of the first and second solenoid valves 9 and 10 needs to be considered.

On the upper surface 11a of the base plate portion 11 of the main body 8, as described above, the cylindrical portion 19 ₁ that constitutes the second recess 18 ₁ is provided so as to protrude upward. The outer periphery of the cylindrical portion 19 _1, as shown in FIGS. 3 and 5, and the second reinforcing ribs 35 1 _a of the flat, substantially rectangular shape is provided so as to surround the outer periphery of the cylindrical portion 19 _1, the cylindrical portion 19 ₁ radially disposed radially about the, and a plurality of second reinforcing ribs 35 1 _b of the radially the cylindrical portion 19 ₁ and the second reinforcing ribs 35 1 _a connected to the tabular I have. The plurality of second reinforcing ribs 35 ₁ b of the radially about the cylindrical portion 19 _1, the horizontal direction (0 degrees), 45 degrees, 90 degrees, 135 degrees, 180 degrees, 225 degrees, 270 degrees, 315 degrees Are provided over an angle of. The radial second reinforcing ribs 35 ₁ b arranged in the horizontal direction (0 °) and 180 ° are formed integrally with the first reinforcing ribs 12. The second reinforcing ribs 35 ₁ a having a substantially rectangular shape in plan view are provided with second radial ribs which are formed integrally with the first reinforcing ribs 12 and are arranged in the horizontal (0 °) and 180 ° directions. recess 36 ₁ is provided at a position intersecting the reinforcing ribs 35 ₁ b. The number of the plurality of radial second reinforcing ribs 35 ₁ b may be more or less than eight. The second reinforcing rib 35 ₁ a having a substantially rectangular shape in a plane and the second reinforcing rib 35 ₁ b having a radial shape are formed so as to have the same thickness t3. The thickness t3 of the second reinforcing rib 35 ₁ a and the radial second reinforcing rib 35 ₁ b is set to, for example, a value equal to the thickness t2 of the first reinforcing ribs 12 and 13.

The second reinforcing ribs 35 ₁ a planar substantially rectangular, as shown in FIG. 2, the length screws 37 casing 28 _first electromagnetic solenoid 26 ₁ in the first and second solenoid valves 9 and 10 fastening portion 38 _1, 39 ₁ of the two cylindrical shape for screwing is provided so as to be positioned diagonally around the valve seat 22 _1. Each fastening portion ₃₈ 1, 39 _1, screw holes ₄₀ 1, 41 ₁ are formed. Incidentally, the screw holes 40 _1, 41 _1, for example, made of was inserted into the synthetic resin constituting the apparatus main body 8 nuts.

In this embodiment, as shown in FIG. 3A, the first and second solenoid valves 9 are used to make the manifold type solenoid valve device 1 as small and light as possible and have sufficient strength. are arranged such that the center of the screw hole ₄₀ 1, 41 ₁ for fixing the casing 28 ₁ of the electromagnetic solenoid 26 ₁ to the apparatus main body 8 is coincident with the edge of the base plate portion 11 at 10. Therefore, the base plate portion 11 of the main body 8 is threaded holes 40 _1, 41 ₁ fastening portion 38 1 a cylindrical formed _is 39 ₁ of the outer peripheral edge protrudes outwardly from an end portion of the base plate portion 11 , the distance L between the fastening portion 38 _1, 39 ₁ of the outer peripheral end, has a maximum dimension in the width direction of the manifold-type solenoid valve device 1.

Further, as shown in FIG. 9, a plurality of manifold-type solenoid valve devices 1 are connected in parallel to both outer side surfaces of a _second reinforcing rib 35 ₂ a having a substantially rectangular flat shape corresponding to the second solenoid valve 10. In the case where the manifold type electromagnetic valve device 1 is used, connecting portions 42 and 43 each including a convex portion and a concave portion for connecting the device main bodies 8 of the manifold type electromagnetic valve device 1 to each other are provided. The connecting portions 42 and 43 may be provided on both outer side surfaces of the second reinforcing rib 35 ₁ a having a substantially rectangular planar shape corresponding to the first electromagnetic valve 9. In addition, a manifold type solenoid valve device is provided on both outer side surfaces of the second reinforcing rib 35 ₁ a and the second reinforcing rib 35 ₂ a having a substantially rectangular planar shape corresponding to the first and second solenoid valves 9 and 10. when used in a 1 multiple coupling, recesses 44 _1, 45 ₁ to avoid interfering with the manifold-type fastening part 38 1 of the cylindrical solenoid valve device _1, 39 ₁ adjacent respectively formed I have.

  As shown in FIG. 4, a lower surface (back surface) 11 b of the base plate portion 11 of the apparatus main body 8 includes a cylindrical first flow path forming section 51 forming the first flow path 4, and a second flow path forming section 51. And a cylindrical second flow path forming portion 52 that forms the flow path 7 is provided in parallel with each other along the longitudinal direction of the apparatus main body 8. Further, the first flow path forming section 51 and the second flow path forming section 52 are partially joined along the longitudinal direction. As shown in FIG. 3B, the first and second flow path forming portions 51 and 52 are formed integrally with each other along the longitudinal direction of the device main body 8 because the device main body 8 is integrally formed by injection molding. It has first and second openings 53 and 54, respectively, which are opened on opposite and opposite end surfaces. The inner diameters of the first and second openings 53 and 54 are set larger than the inner diameters of the first and second flow paths 4 and 7. The first and second openings 53 and 54 are closed in a hermetically sealed state with first and second closing plugs 57 and 58 screwed through sealing members 55 and 56 such as O-rings.

  Further, as shown in FIG. 3B, the first flow path forming section 51 and the second flow path forming section 52 form the first flow path 4 and the second flow path 7, not shown. In consideration of the draft angle of the core, it is formed in a tapered shape so that the diameter becomes smaller from the opened base end portion to the tip end portion.

  As shown in FIG. 4, the first flow path forming portion 51 is provided from one end of the apparatus main body 8 to the position of the first outlet 3 corresponding to the first flow path 4. The second flow path forming section 52 is provided from the other end of the apparatus main body 8 to the second mounting section 15 corresponding to the second flow path 7.

  Further, the second flow path forming portion 52 is arranged at a position close to the back surface of the base plate portion 11 and at a position closer to one side along the width direction of the base plate portion 11. On the other hand, the first flow path forming part 51 is located on the back surface of the base plate part 11 at a position more distant than the second flow path forming part 52 and at the central part along the width direction of the base plate part 11. Are located. The arrangement of the first inlet 2 and the second outlet 3, and the first and second flow path forming portions 51, 52 have the same length along the longitudinal direction of the base plate portion 11. The arrangement of the two mounting portions 15 is determined. These first and second flow path forming portions 51 and 52, together with a third reinforcing rib 51 and the like described later, increase the rigidity of the base plate portion 11 of the apparatus main body 8 along the longitudinal direction and the width direction.

  On the back surface (lower surface) of the first flow path forming section 51, a third reinforcing rib 61 for reinforcing the first flow path forming section 51 forming the first flow path 4 is provided. Further, on the back surface (lower surface) of the second flow path forming section 52, a fourth reinforcing rib 62 for reinforcing the second flow path forming section 52 forming the second flow path 7 is provided. . The third and fourth reinforcing ribs 61 and 62 are arranged at the centers of the first and second flow path forming portions 51 and 52. These third and fourth reinforcing ribs 61 and 62 are formed in a flat plate shape having a predetermined thickness t4 and a predetermined height. The thickness t4 of the third and fourth reinforcing ribs 61, 62 is set to, for example, a value equal to the thickness t1 of the base plate portion 11. The first flow path forming section 51 and the second flow path forming section 52 have different distances from the base plate section 11, and the first flow path forming section 51 is greater than the second flow path forming section 52. It is located below and away from the base plate portion 11. For this reason, the heights h2 and h3 of the third reinforcing rib 61 and the fourth reinforcing rib 62 are different, and the fourth reinforcing rib 62 is set higher than the third reinforcing rib 61. Further, the third reinforcing rib 61 and the fourth reinforcing rib 62 are connected to each other by a connecting reinforcing rib 63 disposed along the width direction of the base plate 11 at an end of the third reinforcing rib 61. The lower end surfaces of the third and fourth reinforcing ribs 61 and 62 and the connecting reinforcing rib 63 form the same plane.

  In addition, as shown in FIGS. 2 and 4, the fourth reinforcing rib 62 is one of the side walls 66 and 67 of the third mounting portion 65 on which the inlet member 64 forming the second inlet 5 is mounted. Is connected to the side wall 66. The third mounting section 65 is provided at a position corresponding to the back side of the first mounting section 14 of the apparatus main body 8 as shown in FIG. The reason is that the first mounting portion 14 is arranged at a position corresponding to the second inlet 5.

  As shown in FIG. 2, the inlet member 64 is provided with a cylindrical member 69 constituting the second inlet 5 orthogonally downward on a flat rectangular substrate 68. Similarly to the first inlet 2 and the first outlet 3, the outer diameter of the second inlet 5 is larger than that of the middle part so that the upper end 5a can press-fit a tube (not shown). Is also formed to be large and thick. The upper end 5b of the second inlet 5 is formed in a tapered shape so that a tube (not shown) can be easily press-fitted. Further, the base end (upper end) 5c of the second inflow port 5 is formed to have a larger outer diameter than other parts and to be reinforced over a predetermined height. In addition, similarly to the first inlet 2 and the first outlet 3, a flat end (not shown) for reinforcing the base 5c of the second inlet 5 is provided at the base 5c of the second inlet 5. 5 reinforcing ribs may be provided. Insertion holes 71 and 72 for screwing the screws 70 of the inlet component 64 to the apparatus main body 8 are opened in the substrate 68 of the inlet component 64.

  As shown in FIG. 4B, the third mounting portion 65 has a communication hole 23 at the center thereof. Further, on the outer periphery of the third mounting portion 65, a cylindrical fifth reinforcing rib 73a provided on the outer periphery of the communication hole 23, and a flat surface provided so as to surround the outer periphery of the fifth reinforcing rib 73a. The fifth reinforcing rib 73b having a substantially rectangular shape and the fifth reinforcing rib 73a having a cylindrical shape are radially arranged around the center of the fifth reinforcing rib 73a. And a plurality of radial fifth reinforcing ribs 73c that connect the fifth reinforcing rib 73b to the fifth reinforcing rib 73b in a flat plate shape. The plurality of radial fifth reinforcing ribs 73c extend in the horizontal direction (0 °), 60 °, 120 °, 180 °, 240 °, and 300 ° around the cylindrical fifth reinforcing rib 73a. Six are provided. The radial fifth reinforcing ribs 73c arranged in the horizontal direction (0 degrees) and 180 degrees are connected to the side walls 66 and 67. Further, an auxiliary reinforcing rib 74 arranged in the same straight line as the fourth reinforcing rib 62 is provided on a side wall 67 arranged on the end side along the longitudinal direction of the apparatus main body 8.

  Further, as shown in FIG. 4B, two cylindrical fastening portions 75, 76 for screwing the inflow port constituent member 64 with screws 70 are provided on the fifth reinforcing rib 73 b having a substantially rectangular planar shape. Are provided so as to be located diagonally about the communication hole 23. Screw holes 77 and 78 are formed in the fastening portions 75 and 76, respectively. The screw holes 77 and 78 are made of, for example, nuts inserted into a synthetic resin constituting the apparatus main body 8.

  As shown in FIGS. 10 and 11, each of the fastening portions 75 and 76 is set to a relatively short length through which the screw holes 77 and 78 penetrate, and a gap G is formed on the back surface of the first concave portion 17. It may be configured as follows.

  Further, each of the fastening portions 75 and 76 is set to be relatively longer than the screw holes 77 and 78 and is configured to be in contact with the back surface of the first recess 17, so that a gap is formed on the back surface of the first recess 17. G can be prevented from being formed, and the strength of the region from the first mounting portion 14 to the third mounting portion 65 can be improved.

  The fifth reinforcing rib 73 is for reinforcing the second inlet 5. An operating force for press-fitting a tube (not shown) into the second inlet 5 directly acts on the second inlet 5. The operating force at the time of press-fitting the tube is mainly a pressing force for pressing the second inflow port 5 along the longitudinal direction, and a rotating force (torsion force) for rotating the tube while holding the tube.

  In the above configuration, in the manifold type solenoid valve device according to the present embodiment, the cost of the device can be reduced as follows.

  That is, in the manifold type solenoid valve device 1, as shown in FIG. 1, the device main body 8 is integrally formed by injection-molded synthetic resin. Therefore, as compared with the conventional case where the device body 8 is formed by cutting, turning, or drilling a material formed in a rectangular parallelepiped shape from a metal, a synthetic resin, or the like, the device body 8 is formed. It can be easily and accurately formed by injection molding, and the cost of the manifold type solenoid valve device 1 can be greatly reduced.

  The device main body 8 of the manifold type solenoid valve device 1 has first reinforcing ribs 12 and 13 on its upper surface and second to fourth reinforcing ribs 61, 62 and 73 on its lower surface. Is provided, sufficient rigidity can be provided along the longitudinal direction and the width direction of the device main body 8 even when the device main body 8 is formed in a small size. Further, the first inflow port 2, the first outflow port 3, the second inflow port 5, and the first to third mounting portions 14, 15, 65 are connected to the first to fourth reinforcing ribs 12, 13, 61. , 62, 73, and has sufficient strength against the operating force acting on the device body 8.

  Further, as shown in FIGS. 12 and 13, the device main body 8 of the manifold type solenoid valve device 1 has second and third reinforcing ribs 61, 62 disposed on the lower surface thereof over substantially the entire length along the longitudinal direction. Therefore, when the device main body 8 is integrally formed by injection molding made of synthetic resin, the second and third reinforcing ribs 61 and 62 form a cavity through which the synthetic resin flows, and the device main body 8 Can be accurately manufactured into a predetermined shape.

  The manifold type solenoid valve device 1 manufactured as described above is equipped with a tube (not shown) for supplying a main liquid to the first inlet 2 of the device main body 8 and discharges the main liquid to the first outlet 3. (Not shown) is attached. Further, the manifold type solenoid valve device 1 is equipped with a tube (not shown) for supplying an additive liquid to the second inlet 5 of the device body 8.

  Then, after turning on the first and second solenoid valves 9 and 10 at a timing when the main liquid is not circulating in the first flow path 4, the second liquid is pumped from outside the first inlet 3 by a pump such as a syringe pump. The additive liquid in a container placed outside the inlet 5 is gradually sucked up (for example, about 50 ml per minute). Instead of sucking up the additive liquid from outside the first inlet 3, the additive liquid in a container installed outside the second inlet 5 may be gradually fed. Thereafter, only the first solenoid valve 9 is turned off.

  Next, in the manifold type electromagnetic valve device 1, the main liquid is supplied from the first inlet 2 of the device main body 8, and the first electromagnetic valve 9 is turned ON at a predetermined timing to add the additive liquid to the main liquid. In a mixed state, a mixed liquid of the main liquid and the additive liquid is supplied from the first outlet 3.

  The inventor evaluated the strength of the device main body 8 of the manifold type solenoid valve device 1 according to the present embodiment as follows.

  First, the operating force applied to the first inlet 2, the first outlet 3, and the second inlet 5 of the apparatus main body 8 is less than about 5 kgf (≒ 50 N) as the operating force when pulling or pushing the tube. It was evaluated that the screwing torque was less than about 2 Nm and the weight of the solenoid valves 9 and 10 was about 0.2 kgf (≒ 2N).

  On the other hand, polyphenylene sulfide (PPS), which is an example of the synthetic resin forming the apparatus main body 8, has a tensile strength of 155 MPa, a compressive strength of 150 MPa, and a bending strength of 220 MPa. No problem in strength.

  The present inventor performed the following numerical analysis in order to study the operating force acting on the first inlet 2 and the first outlet 3 of the apparatus main body 8 in more detail.

  When the loads of 50N and 100N were applied to the first inlet 2 and the first outlet 3 of the apparatus body 8 at different angles, the maximum stress was evaluated.

  FIGS. 14 and 15 are a chart and a graph showing the results of the numerical analysis.

  As apparent from FIGS. 14 and 15, it was found that a maximum stress of 121.3 MPa acts when the elevation angle is about 9 degrees. Since the maximum stress of 121.3 MPa is lower than the tensile strength of 155 MPa, the compressive strength of 150 MPa, and the bending strength of 220 MPa of polyphenylene sulfide (PPS) which is an example of the synthetic resin forming the apparatus main body 8, the strength is increased. It turned out that there was no problem.

[Embodiment 2]
FIG. 16 is a sectional view showing a fluid mixing manifold type solenoid valve device as an example of a fluid mixing device according to Embodiment 2 of the present invention.

  The fluid mixing manifold type solenoid valve device according to Embodiment 2 includes only one solenoid valve. That is, the manifold type solenoid valve device 1 according to the second embodiment does not include the first solenoid valve 9 but only the second solenoid valve 10 in the device body 8 as shown in FIG. Have been. Further, the second flow path 7 having the second inlet 5 into which the second fluid flows and the mixing outlet 6 for mixing the second fluid with the first fluid flowing through the first flow path 7 includes: It is provided on the apparatus main body 8 along the up-down direction. The first flow path 4 is provided so as to penetrate along the longitudinal direction of the apparatus main body 8, and obstruction plugs 57 are disposed at both ends of the first flow path 4.

  Therefore, in the manifold type solenoid valve device 1 according to Embodiment 2, the device can be further reduced in size and weight.

  In the above-described embodiment, a case has been described where the present invention is applied to a liquid mainly composed of a main liquid and an additive liquid. However, the present invention is widely applicable to a gas such as air.

DESCRIPTION OF SYMBOLS 1 ... Manifold type solenoid valve device 2 ... 1st inlet 3 ... 1st outlet 4 ... 1st flow path 5 ... 2nd inlet 6 ... Mixing outlet 7 ... 2nd flow path 8 ... Device main body 9 ... 1st solenoid valve 10 ... 2nd solenoid valve 11 ... base plate part 12 ... 1st rib for reinforcement 13 ... 1st rib for reinforcement

Claims (11)

A first flow path having a first inlet through which a first fluid flows and a first outlet through which the first fluid flows, a second inlet through which a second fluid flows, and the second fluid A synthetic resin device main body integrally formed with a second flow path having a mixing outlet for mixing the first fluid flowing into the first fluid flowing through the first flow path,
An on-off valve mounted on a mounting portion of the apparatus main body to open and close the second flow path,
The apparatus main body includes a first reinforcing rib provided to protrude from the apparatus main body, the first reinforcing rib reinforcing base ends of the first inlet and the first outlet, and a second reinforcing rib reinforcing the mounting portion. A fluid mixing device, comprising: A first flow path having a first inlet through which a first fluid flows and a first outlet through which the first fluid flows, a second inlet through which a second fluid flows, and the second fluid A synthetic resin device main body integrally formed with a second flow path having a mixing outlet for mixing the first fluid flowing into the first fluid flowing through the first flow path,
An on-off valve mounted on a mounting portion of the apparatus main body to open and close the second flow path,
The apparatus main body includes a first reinforcing rib that opposes an external force acting on a base end of the first inflow port and the first outflow port in a circumferential direction, and a self-weight of the on-off valve that acts on the mounting portion. A fluid mixing device, comprising a second reinforcing rib against which a fluid is integrated. A first flow path having a first inlet through which a first fluid flows and a first outlet through which the first fluid flows, a second inlet through which a second fluid flows, and the second fluid A synthetic resin device main body integrally formed with a second flow path having a mixing outlet for mixing the first fluid flowing into the first fluid flowing through the first flow path,
An on-off valve mounted on a mounting portion of the apparatus main body to open and close the second flow path,
The apparatus body includes a first reinforcing rib for reinforcing base ends of the first inlet and the first outlet, a second reinforcing rib for reinforcing the mounting portion, and reinforcing the first flow path. A fluid mixing device, which integrally includes a third reinforcing rib to be used and a fourth reinforcing rib for reinforcing at least a part of the second flow path. The fluid mixing device according to claim 1, wherein a valve seat of the on-off valve is formed integrally with the mounting portion. The fluid mixing device according to claim 1, wherein the on-off valve controls a flow rate of the second fluid. The second reinforcing rib includes a cylindrical portion formed concentrically with a valve seat of the on-off valve, a rectangular portion formed in a substantially rectangular planar shape so as to surround the cylindrical portion, and the cylindrical portion and the rectangular shape. The fluid mixing device according to claim 4, further comprising a connecting portion that radially connects the portions. The device body has a base plate portion formed in a flat shape,
The first inflow port, the first outflow port, and the mounting portion are integrally formed on one surface of the base plate portion,
The fluid mixing device according to any one of claims 1 to 6, wherein the first flow path and the second flow path are integrally formed on the other surface of the base plate portion. The first flow path forming part forming the first flow path and the second flow path forming part forming the second flow path,
The first flow path forming part and the second flow path forming part are arranged so as to partially overlap each other along the longitudinal direction of the fluid mixing device main body, and the first flow path forming part and the second flow path forming part The fluid mixing device according to any one of claims 1 to 7, wherein the two flow path forming portions are open at opposite ends along a longitudinal direction of the device main body.   The first reinforcing rib is provided at a base end of the first inlet and the first outlet so as to extend in a longitudinal direction of the apparatus main body and in a direction intersecting the longitudinal direction. The fluid mixing device according to claim 1. A first on-off valve for opening and closing the second fluid flowing into the second flow path;
A second on-off valve for opening and closing the second fluid mixed with the first fluid;
The fluid mixing device according to any one of claims 1 to 9, further comprising:   The fluid mixing device according to any one of claims 1 to 10, wherein the device main body has a connecting portion that can connect the device main body to each other along a direction intersecting the longitudinal direction.

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