JP6103198B2 - Valve device - Google Patents

Description

  The present invention relates to a valve device for controlling the flow rate and temperature of a fluid.

  The present applicant has proposed a faucet device that discharges and stops hot water from a mixed faucet in Patent Document 1. The faucet device described in Patent Document 1 includes a mixing faucet that discharges hot water, a faucet body that adjusts the temperature and flow rate of hot water, and a human body detection means that detects a human body. In this faucet device, a mixing faucet and a faucet body are connected by a hot water supply pipe, a hot water supply pipe and a water supply pipe are connected to the faucet body, and a hot water supply side solenoid valve is provided in the middle of the hot water supply pipe. The water supply side solenoid valve is provided in the middle of the pipe of the water supply pipe.

  The water faucet device further includes control means, and the control means controls the opening and closing operations of the hot water supply side electromagnetic valve and the water supply side electromagnetic valve based on information from the human body detection means. The hot water supply side solenoid valve and the water supply side solenoid valve are opened and closed to supply hot water from the hot water supply pipe to the faucet body and from the water supply pipe to the faucet body, respectively. The hot water is discharged from the mixing tap and stopped.

JP 2010-265701 A

  In the faucet device described in Patent Document 1, a hot water supply side solenoid valve is provided in the hot water supply pipe, and a water supply side solenoid valve is provided in the water supply pipe. It is possible to adjust the flow rate of hot water supplied to the water and the flow rate of water supplied from the water supply pipe to the faucet body. Thus, in the water faucet device, the flow rate of hot water from the hot water supply pipe to the faucet body and the flow rate of water supply from the water supply pipe to the faucet body can be adjusted independently, so that the water is discharged from the mixing faucet You can adjust the temperature and flow rate of hot water.

  On the other hand, since the water faucet device has electromagnetic valves in both the hot water supply pipe and the water supply pipe, there is a problem that the number of parts is large and the cost is high. In addition, since the faucet device is configured by having an electromagnetic valve in each of the hot water supply pipe and the water supply pipe, there is a problem that it is difficult to reduce the size of the faucet device.

  The present invention has been made in view of the circumstances as described above, and can adjust the temperature and flow rate of hot water discharged from the mixing faucet, and can reduce the cost and size of the faucet device. It is an object to provide a simple valve device.

In order to solve the above problems, a valve device of the present invention includes a cylindrical outer cylinder and a cylindrical inner cylinder that is rotatably mounted in the outer cylinder in a circumferential direction. A first fluid side inlet into which one fluid flows; a second fluid side inlet into which the second fluid flows; and a mixed fluid side outlet from which a mixed fluid of the first fluid and the second fluid flows out. The first fluid side inlet and the second fluid side inlet are axially separated from each other in the side wall portion of the outer cylinder, and the inner cylinder corresponds to the first fluid side inlet corresponding to the first fluid side inlet. 1 fluid side opening and the 2nd fluid side opening corresponding to the 2nd fluid side inflow port, and the 1st fluid side inflow port and the 1st fluid side opening overlap by rotation of the peripheral direction of an inner cylinder A first fluid side channel is formed, and the second fluid side inlet and the second fluid side opening overlap to form a second fluid side channel, and a cross-sectional area of the first fluid side channel The cross-sectional area of the second fluid-side flow path changes according to the rotation of the inner cylinder in the circumferential direction, and the rotation of the inner cylinder changes in the cross-sectional area of the first fluid-side flow path and the cross-sectional area of the second fluid-side flow path. Within the range, the sum of the sectional area of the first fluid side channel and the sectional area of the second fluid side channel is constant, or the sectional area of the first fluid side channel and the sectional area of the second fluid side channel. The inner cylinder has a plurality of sets of first fluid side openings and second fluid side openings, and the opening cross sectional area of the first fluid side opening and the second fluid side opening is formed. Is different for each group .

In this valve device, the inner cylinder is preferably formed so as to be movable in the axial direction.

  According to the valve device of the present invention, the temperature and flow rate of hot water discharged from the mixing faucet can be adjusted. Moreover, the cost and size of the faucet device can be reduced.

It is sectional drawing which shows one Embodiment of the valve apparatus of this invention. It is sectional drawing of the valve apparatus for demonstrating rotation operation of the inner cylinder of the valve apparatus of FIG. It is a schematic diagram for demonstrating that the sum total of the opening cross-sectional area of the opening part of 1st fluid side opening and the opening cross-sectional area of the opening part of 2nd fluid side opening is constant. It is the schematic diagram which expand | deployed the inner cylinder of the valve apparatus which is embodiment different from the valve apparatus of FIG. 1 in the circumferential direction. It is sectional drawing of the valve apparatus for demonstrating rotation operation of the inner cylinder of FIG. It is a schematic diagram for demonstrating that the cross-sectional area ratio of the opening cross-sectional area of the opening part of 1st fluid side opening and the opening cross-sectional area of the opening part of 2nd fluid side opening is constant. FIG. 2 is a schematic diagram in which an inner cylinder in which two sets of a group including a first fluid side opening and a second fluid side opening are further added to the inner cylinder of the valve device in FIG. 1 is developed in the circumferential direction.

  The valve device of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view showing an embodiment of the valve device of the present invention.

  As shown in FIG. 1, the valve device 1 includes a cylindrical outer cylinder 2 and a cylindrical inner cylinder 10 that is rotatably mounted in the outer cylinder 2 in the circumferential direction. A cylinder 10 is stored in a cylindrical casing 7 in a watertight manner.

  The outer cylinder 2 is configured as a valve device body. The outer cylinder 2 includes a first fluid side inlet 3 into which a first fluid (for example, water) flows, a second fluid side inlet 4 into which a second fluid (for example, hot water) flows, a first fluid, and a first fluid. It has a mixed fluid side outlet 5 from which a mixed fluid with two fluids (for example, a hot and cold mixed fluid) flows out. The first fluid side inlet 3 and the second fluid side inlet 4 are provided on the cylindrical side wall 6 constituting the main body of the outer cylinder 2 so as to be separated from each other in the axial direction. “Axis direction is provided apart from each other” means that both the first fluid side inflow port 3 and the second fluid side inflow port 4 are shifted in the axial direction at one circumferential position of the side wall portion 6. It is not only intended to be. It is intended to include that each of the first fluid side inlet 3 and the second fluid side inlet 4 is offset in the axial direction at different positions in the circumferential direction of the side wall 6. In the valve device 1 of FIG. 1, the second fluid side inlet 4 is provided at a position 180 ° in the circumferential direction of the first fluid side inlet 3 of the side wall portion 6. Each of the fluid side inlets 4 is provided at a different position in the circumferential direction of the side wall 6. The first fluid side inlet 3 is formed in the upper part of the side wall 6 in the drawing, and the second fluid side inlet 4 is formed in the lower part of the side wall 6. Thus, the first fluid side inlet 3 and the second fluid side inlet 4 are provided in the side wall portion 6 of the outer cylinder 2 so as to be separated from each other in the axial direction.

  Both the first fluid side inflow port 3 and the second fluid side inflow port 4 are formed as openings through the side wall portion 6 inward and outward. The axial direction one end part of the side wall part 6 is opening, and the mixed fluid side outflow port 5 is formed in this opening part.

  The casing 7 has an opening 40 corresponding to the first fluid side inlet 3 of the outer cylinder 2 and an opening 41 corresponding to the second fluid side inlet 4 of the outer cylinder 2. The casing 7 is formed so as to be connectable to a first fluid supply pipe that supplies a first fluid, and supplies the first fluid to the opening 40. A second fluid supply pipe for supplying the second fluid is formed so as to be connectable, and supplies the second fluid to the opening 41. Further, the casing 7 also has an opening 42 corresponding to the mixed fluid side outlet 5 of the outer cylinder 2, and is formed so that a mixed fluid supply pipe can be connected to the mixed fluid supply pipe from the opening 42. Supply. The first fluid is introduced from the first fluid side inlet 3 into the inner cylinder 10 in the outer cylinder 2 through the first fluid supply pipe. The second fluid is introduced from the second fluid side inlet 4 to the inner cylinder 10 in the outer cylinder 2 through the second fluid supply pipe. The fluid introduced into the inner cylinder 10 is discharged from the mixed fluid side outlet 5 as a mixed fluid, and is supplied to a desired location through the mixed fluid supply pipe.

  The inner cylinder 10 is configured as a valve body. The inner cylinder 10 has a cylindrical side wall portion 11 constituting the main body of the inner cylinder 10, a first fluid side opening 12 corresponding to the first fluid side inlet 3, and a second fluid side inlet 4 corresponding to the second fluid side inlet 4. 2 fluid side opening 13. The “first fluid side opening 12 corresponding to the first fluid side inlet 3” intends the first fluid side opening 12 that overlaps the first fluid side inlet 3 by the rotation of the inner cylinder 10 in the circumferential direction. Further, the “second fluid side opening 13 corresponding to the second fluid side inlet 4” intends the second fluid side opening 13 that overlaps the second fluid side inlet 4 by the rotation of the inner cylinder 10 in the circumferential direction. . Therefore, the first fluid side opening 12 and the second fluid side opening 13 are provided on the side wall portion 11 of the inner cylinder 10 so as to be shifted in the axial direction, similarly to the first fluid side inlet 3 and the second fluid side inlet 4. It has been.

  An internal channel 16 through which the first fluid and the second fluid circulate is formed inside the side wall 11 of the inner cylinder 10. The internal flow path 16 communicates with the mixed fluid side outlet 5 of the outer cylinder 2 through an opening 17 formed at one axial end of the side wall 11 of the inner cylinder 10. Therefore, the fluid introduced into the inner cylinder 10 can be discharged from the mixed fluid side outlet 5 of the outer cylinder 2 through the internal channel 16.

  A rotating shaft 18 is formed at the other axial end of the inner cylinder 10 so as to coincide with the central axis of the side wall portion 11. The rotating shaft 18 can be connected to a motor such as a stepping motor, and can rotate the inner cylinder 10 in the circumferential direction by rotational driving of the motor.

  Due to the rotation of the inner cylinder 10 in the circumferential direction, the first fluid side inlet 3 and the first fluid side opening 12 are overlapped to form a first fluid side flow path 14. Further, the second fluid side inlet 4 and the second fluid side opening 13 are overlapped to form a second fluid side flow path 15.

  The cross-sectional area of the first fluid-side flow path 14 and the cross-sectional area of the second fluid-side flow path 15 change according to the rotation of the inner cylinder 10 in the circumferential direction. That is, as the inner cylinder 10 rotates in the circumferential direction, the degree of overlap of the first fluid side opening 12 with respect to the first fluid side inlet 3 changes, and the degree of opening of the first fluid side opening 12 changes. The opening cross-sectional area (the cross-sectional area in the circumferential direction) of the opening portion of the first fluid-side opening 12 corresponds to the cross-sectional area of the first fluid-side flow path 14. Here, the “opening portion of the first fluid side opening 12” intends a portion where the first fluid side opening 12 overlaps the first fluid side inlet 3. The same applies to the change in the cross-sectional area of the second fluid side channel 15. As the inner cylinder 10 rotates in the circumferential direction, the degree of overlap of the second fluid side opening 13 with the second fluid side inlet 4 changes, and the degree of opening of the second fluid side opening 13 changes. The opening sectional area of the opening portion of the second fluid side opening 13 corresponds to the sectional area of the second fluid side channel 15. Here, the “opening portion of the second fluid side opening 13” intends a portion where the second fluid side opening 13 overlaps the second fluid side inlet 4.

  The valve device 1 has a cross-sectional area of the first fluid-side channel 14 within a range of rotation of the inner cylinder 10 in which a cross-sectional area of the first fluid-side channel 14 and a cross-sectional area of the second fluid-side channel 15 change. The second fluid side channel 15 is formed so as to have a constant total cross-sectional area.

  As an example of such a valve device, both the first fluid side opening 12 and the second fluid side opening 13 have the same shape and the same size. Here, “size” refers to an opening cross-sectional area (hereinafter the same). The sizes of the first fluid side opening 12 and the second fluid side opening 13 are smaller than the sizes of the corresponding first fluid side inlet 3 and second fluid side inlet 4, respectively. Further, the first fluid side opening 12 and the second fluid side opening 13 are formed at predetermined positions on the side wall portion of the inner cylinder 10.

  In the valve device 1 of FIG. 1, both the first fluid side opening 12 and the second fluid side opening 13 are substantially triangular and have openings of the same size. The sizes of the first fluid side opening 12 and the second fluid side opening 13 are smaller than the sizes of the corresponding first fluid side inlet 3 and second fluid side inlet 4. The first fluid side opening 12 is formed such that the top of the substantially triangular opening overlaps the first fluid side inlet 3 first by the rotation of the inner cylinder 10. The second fluid side opening 13 is also formed so that the top of the substantially triangular opening overlaps the second fluid side inlet 4 first by the rotation of the inner cylinder 10. In this way, when the inner cylinder 10 starts to rotate from the state of FIG. 2A described later, a small flow rate fluid is introduced into the inner cylinder 10 and a small flow rate fluid is discharged from the mixed fluid side outlet 5. can do. Therefore, rapid discharge of a large flow rate of fluid can be suppressed.

  When the first fluid side opening 12 and the second fluid side opening 13 are in a position where the opening degree of the first fluid side opening 12 is fully open (or fully closed), the opening degree of the second fluid side opening 13 is fully open. It is formed at a position that is closed (or fully open). Furthermore, the fully open (or fully closed) opening degree of the first fluid side opening 12 decreases (or increases) as the inner cylinder 10 rotates, and the fully closed (or fully open) opening degree of the second fluid side opening 13 increases. It is formed at a position that increases (or decreases) as the cylinder 10 rotates. That is, when the first fluid side opening 12 is disposed at a position aligned with the first fluid side inlet 3, the second fluid side opening 13 is moved from the position aligned with the second fluid side inlet 4 to the first fluid. The side opening 12 is arranged so as to deviate in the rotation direction opposite to the rotation direction of the inner cylinder 10 by the length in the circumferential direction.

  The rotation operation of the inner cylinder 10 of the valve device 1 will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the same part as embodiment shown in FIG. 1, and the description is abbreviate | omitted.

  2 is a cross-sectional view taken along line AA of the valve device 1 of FIG. 1, and the inner cylinder 10 is sequentially rotated. The lower stage is a cross-sectional view taken along the line BB of the valve device 1 of FIG. 1 and sequentially rotates the inner cylinder 10.

  FIG. 2A shows a state where the first fluid side inlet 3 and the first fluid side opening 12 do not overlap, and a state where the second fluid side inlet 4 and the second fluid side opening 13 do not overlap. Indicates. That is, both the opening degree of the first fluid side opening 12 and the opening degree of the second fluid side opening 13 are in a fully closed state. In the state of FIG. 2A, neither the first fluid nor the second fluid is introduced into the inner cylinder 10. When the inner cylinder 10 is rotated in the circumferential direction (direction indicated by an arrow) from the state of FIG. 2A, the opening degree of the first fluid side opening 12 increases as the inner cylinder 10 rotates.

  FIG. 2B shows a state in which the opening degree of the first fluid side opening 12 is fully opened by the rotation of the inner cylinder 10. On the other hand, the opening degree of the second fluid side opening 13 is still fully closed. In the state of FIG. 2B, only the first fluid is introduced into the inner cylinder 10, flows into the internal flow path 16 of the inner cylinder 10, and is discharged from the mixed fluid side outlet of the outer cylinder 2. When the inner cylinder 10 is further rotated in the circumferential direction from the state of FIG. 2 (b), the fully open degree of the first fluid side opening 12 decreases as the inner cylinder 10 rotates. On the other hand, the fully closed opening degree of the second fluid side opening 13 increases as the inner cylinder 10 rotates.

  FIG. 2C shows a state in which the opening degree of the first fluid side opening 12 is halved by the rotation of the inner cylinder 10. At this time, the opening degree of the second fluid side opening 13 is also halved. In the state of FIG. 2 (c), the first fluid and the second fluid are introduced into the inner cylinder 10, circulates in the internal flow path 16 of the inner cylinder 10, and is supplied from the mixed fluid side outlet of the outer cylinder 2 as a mixed fluid. Discharged. When the inner cylinder 10 is further rotated in the circumferential direction from the state of FIG. 2C, the opening degree of the first fluid side opening 12 is further reduced as the inner cylinder 10 is rotated, and is in a fully closed state. On the other hand, the opening degree of the second fluid side opening 13 further increases as the inner cylinder 10 rotates, and becomes fully open.

  FIG. 2D shows a state in which the opening degree of the first fluid side opening 12 is fully closed and the opening degree of the second fluid side opening 13 is fully opened by the rotation of the inner cylinder 10. In the state of FIG. 2 (d), only the second fluid is introduced into the inner cylinder 10, flows into the internal flow path 16 of the inner cylinder 10, and is discharged from the mixed fluid side outlet of the outer cylinder 2.

  From the state of FIG. 2B to the state of FIG. 2D, both the opening degree of the first fluid side opening 12 and the opening degree of the second fluid side opening 13 change according to the rotation of the inner cylinder 10. Both the first fluid side opening 12 and the second fluid side opening 13 are substantially triangular and have the same size, and the tops of the substantially triangular openings are arranged at similar positions. Therefore, within the range of rotation of the inner cylinder 10 from the state of FIG. 2B to the state of FIG. 2D, the opening cross-sectional area of the opening portion of the first fluid side opening 12 and the second fluid side The total of the opening cross-sectional area of the opening portion of the opening 13 is constant.

  FIG. 3 is a schematic diagram for explaining that the sum of the opening sectional area of the opening portion of the first fluid side opening and the opening sectional area of the opening portion of the second fluid side opening is constant.

  FIG. 3A is a schematic diagram of the outer cylinder 2 when the valve device 1 in the state of FIG. 2B is viewed from the opening 40 of the casing 7. This figure shows a state in which the opening degree of the first fluid side opening 12 is fully open.

  3B is a schematic diagram of the outer cylinder 2 when the valve device 1 in the state of FIG. 2C is viewed from the opening 40 of the casing 7, and the lower diagram is FIG. FIG. 4 is a schematic view of the outer cylinder 2 when the valve device 1 in the state of) is viewed from the opening 41 of the casing 7. This figure shows a state in which the opening degree of the first fluid side opening 12 is halved. Further, the opening degree of the second fluid side opening 13 is also halved. In this figure, the sum of the opening cross-sectional area of the opening portion of the first fluid-side opening 12 and the opening cross-sectional area of the opening portion of the second fluid-side opening 13 is the opening of the first fluid-side opening 12 in FIG. It is equal to the opening cross-sectional area of the part.

  FIG. 3C is a schematic view of the outer cylinder 2 when the valve device 1 in the state of FIG. 2C is viewed from the opening 41 of the casing 7. This figure shows a state in which the opening degree of the second fluid side opening 13 is fully open. The opening cross-sectional area of the opening portion of the second fluid side opening 13 in this figure is equal to the opening cross-sectional area of the opening portion of the first fluid side opening 12 of FIG. 3A, and the first cross section of FIG. The sum of the opening sectional area of the opening portion of the fluid side opening 12 and the opening sectional area of the opening portion of the second fluid side opening 13 is also equal.

  Thus, within the range of rotation of the inner cylinder 10 in which the opening degree of the first fluid side opening 12 and the opening degree of the second fluid side opening 13 change, the opening cross-sectional area of the opening portion of the first fluid side opening 12 and the first The total of the opening cross-sectional area of the opening portion of the two fluid side opening 13 is constant.

  The opening sectional area of the opening portion of the first fluid side opening 12 corresponds to the sectional area of the first fluid side channel 14, and the opening sectional area of the opening portion of the second fluid side opening 13 is the second fluid side channel 15. Corresponds to the cross-sectional area. For this reason, the valve device 1 includes the first fluid side channel 14 within the range of rotation of the inner cylinder 10 in which the sectional area of the first fluid side channel 14 and the sectional area of the second fluid side channel 15 change. The sum of the cross-sectional area and the cross-sectional area of the second fluid side channel 15 is constant.

  In such a valve device, the mixing ratio of the first fluid and the second fluid is different within the range of rotation of the inner cylinder in which the cross-sectional area of the first fluid-side channel and the cross-sectional area of the second fluid-side channel change. A mixed fluid having a constant flow rate can be discharged from the mixed fluid side outlet. Therefore, for example, when water (or hot water) is adopted as the first fluid and hot water (or water) is adopted as the second fluid, a certain amount of hot water having different temperatures can be obtained by rotating the inner cylinder within a predetermined range. It can be discharged. For this reason, although the faucet device described in the background art has electromagnetic valves in both the hot water pipe and the water supply pipe, the number of electromagnetic valves can be reduced by using the valve device of the present invention. Thereby, the temperature of the hot water discharged from the mixing faucet can be adjusted, and the cost and size of the faucet device can be reduced.

  In the valve device described above, the cross-sectional area of the first fluid-side channel and the second fluid are within the range of rotation of the inner cylinder in which the cross-sectional area of the first fluid-side channel and the cross-sectional area of the second fluid-side channel change. It is formed so as to have a constant relationship with the total cross-sectional area of the side channel.

  The present invention also provides a valve device that is formed so that the cross-sectional area ratio between the cross-sectional area of the first fluid-side channel and the cross-sectional area of the second fluid-side channel is constant.

  As an example of such a valve device, the first fluid side opening and the second fluid side opening have the same circumferential length and the same axial length, or the same circumferential length. An opening having a similar shape and extending in the axial direction has a different axial length. The first fluid side opening and the second fluid side opening have a cross-sectional area ratio corresponding to the mixing ratio of the first fluid and the second fluid. The sizes of the first fluid side opening and the second fluid side opening are smaller than the sizes of the corresponding first fluid side inlet and second fluid side inlet. Further, the first fluid side opening and the second fluid side opening are disposed at predetermined positions on the side wall portion of the inner cylinder.

  Hereinafter, this valve device will be described. Since the configuration other than the inner cylinder is the same as the configuration of the valve device described above, the description thereof is omitted.

  FIG. 4 is a schematic view in which an inner cylinder of a valve device which is an embodiment different from the valve device of FIG. 1 is developed in the circumferential direction. This figure includes a first fluid side opening corresponding to the first fluid side inlet and a second fluid side opening corresponding to the second fluid side inlet. 4, the same parts as those in the embodiment shown in FIGS. 1 to 3 are denoted by the same reference numerals, and the description thereof is omitted.

  Both of the first fluid side opening 22 and the second fluid side opening 23 of the inner cylinder 20 have substantially the same triangular length and a substantially triangular opening. This opening has a symmetrical shape in the axial direction. That is, it has a vertically symmetrical shape on the paper surface. The second fluid side opening 23 has an axial length longer than that of the first fluid side opening 22, and the size of the second fluid side opening 23 is larger than the size of the first fluid side opening 22. . The sizes of the first fluid side opening 22 and the second fluid side opening 23 are smaller than the sizes of the corresponding first fluid side inlet 3 and second fluid side inlet 4. The first fluid side opening 22 is formed such that the top of the substantially triangular opening overlaps the first fluid side inlet of the outer cylinder first by the rotation of the inner cylinder 20. The second fluid side opening 23 is also formed such that the top of the substantially triangular opening overlaps the second fluid side inlet of the outer cylinder first by the rotation of the inner cylinder 20. By doing so, when the rotation of the inner cylinder 20 is started from the state of FIG. 5A described later, a small flow rate fluid is introduced into the inner cylinder 20 and a small flow rate fluid is discharged from the mixed fluid side outlet. be able to. As a result, rapid discharge of a large flow rate of fluid can be suppressed.

  When the first fluid side opening 22 and the second fluid side opening 23 are in a position where the opening degree of the first fluid side opening 22 is fully closed (or fully open), the opening degree of the second fluid side opening 23 is also fully open. It is formed at a position that is closed (or fully open). Further, the fully closed (or fully open) opening degree of the first fluid side opening 22 increases (or decreases) as the inner cylinder 20 rotates, and the fully closed (or fully open) opening degree of the second fluid side opening 23 also increases. It is formed at a position that increases (or decreases) as the cylinder 20 rotates. That is, the first fluid side opening 22 and the second fluid side inlet 22 are arranged so as to have the same positional relationship as the mutual positional relationship between the first fluid side inlet 3 and the second fluid side inlet 4 in the circumferential direction of the side wall portion of the outer cylinder. The two fluid side openings 23 are formed in the side wall portion 11 so as to be shifted from each other in the circumferential direction. This embodiment is an example in which the second fluid side inlet 4 is formed at a position 180 ° in the circumferential direction of the first fluid side inlet 3 of the side wall portion of the outer cylinder, and the second fluid side opening 23 is a side wall. The first fluid side opening 22 of the portion 11 is formed at a position 180 ° in the circumferential direction.

  The rotation operation of the inner cylinder of this valve device will be described with reference to FIG.

  5 is a cross-sectional view taken along line AA of the valve device of FIG. 1, and is a valve device 50 to which the inner cylinder 20 of FIG. 4 is applied, and the inner cylinder 20 is rotated sequentially. The lower stage is also a cross-sectional view taken along the line BB of the valve device of FIG. 1, but is a valve device 50 to which the inner cylinder 20 of FIG. 4 is applied, and the inner cylinder 20 is rotated sequentially. In addition, the same code | symbol is attached | subjected to the same part as embodiment shown in FIGS. 1-4, and the description is abbreviate | omitted.

  FIG. 5A shows a state where the first fluid side inlet 3 and the first fluid side opening 22 do not overlap, and a state where the second fluid side inlet 4 and the second fluid side opening 23 do not overlap. Indicates. That is, the opening degree of the first fluid side opening 22 and the opening degree of the second fluid side opening 23 are both in a fully closed state. In the state of FIG. 5A, neither the first fluid nor the second fluid is introduced into the inner cylinder 20. When the inner cylinder 20 is rotated in the circumferential direction (direction indicated by the arrow) from the state of FIG. 5A, the opening degree of the first fluid side opening 22 increases as the inner cylinder 20 rotates. The opening degree of the second fluid side opening 23 also increases as the inner cylinder 20 rotates.

  FIG. 5B shows a state in which the opening degree of the first fluid side opening 22 is about 1/3 of the fully opened state by the rotation of the inner cylinder 20. At this time, the opening degree of the second fluid side opening 23 is also about 1/3 of the fully opened state. In the state of FIG. 5B, the first fluid and the second fluid are introduced into the inner cylinder 20, circulates in the internal flow path 16 of the inner cylinder 20, and flows from the mixed fluid side outlet of the outer cylinder 2 as a mixed fluid. Discharged. When the inner cylinder 20 is further rotated in the circumferential direction from the state of FIG. 5B, the degree of opening of the first fluid side opening 22 further increases with the rotation of the inner cylinder 20 and is in a fully opened state. The opening degree of the second fluid side opening 23 further increases as the inner cylinder 20 rotates, and is in a fully opened state.

  FIG. 5C shows a state in which the opening degree of the first fluid side opening 22 and the opening degree of the second fluid side opening 23 are both fully opened by the rotation of the inner cylinder 20. In the state of FIG. 5C, the mixed fluid is discharged from the mixed fluid side outlet as in the state of FIG. 5B. However, the flow rate of the mixed fluid discharged in the state of FIG. There are many. When the inner cylinder 20 is further rotated in the circumferential direction from the state of FIG. 5C, the opening degree of the first fluid side opening 22 decreases with the rotation of the inner cylinder 20, and becomes a fully closed state. The opening degree of the second fluid side opening 23 also decreases with the rotation of the inner cylinder 20 and becomes a fully closed state.

  FIG. 5D shows a state where the opening degree of the first fluid side opening 22 and the opening degree of the second fluid side opening 23 are both fully closed by the rotation of the inner cylinder 20. In this state, neither the first fluid nor the second fluid is introduced into the inner cylinder 20.

  From the state of FIG. 5A to the state of FIG. 5D, both the opening degree of the first fluid side opening 22 and the opening degree of the second fluid side opening 23 change according to the rotation of the inner cylinder 20. Each of the first fluid side opening 22 and the second fluid side opening 23 has openings having the same circumferential length and symmetrical shapes in the axial direction, and having different sizes. Therefore, within the range of rotation of the inner cylinder 20 from the state of FIG. 5A to the state of FIG. 5D, the opening cross-sectional area of the opening portion of the first fluid side opening 22 and the second fluid side The ratio of the cross-sectional area to the opening cross-sectional area of the opening portion of the opening 23 is constant.

  FIG. 6 is a schematic diagram for explaining that the cross-sectional area ratio between the opening cross-sectional area of the opening portion of the first fluid-side opening and the opening cross-sectional area of the opening portion of the second fluid-side opening is constant.

  6A is a schematic diagram of the outer cylinder 2 when the valve device 50 in the state of FIG. 5B is viewed from the opening 40 of the casing 7, and the lower diagram is FIG. 5B. FIG. 6 is a schematic view of the outer cylinder 2 when the valve device 50 in the state of) is viewed from the opening 41 of the casing 7. This figure shows a state where the opening degree of the first fluid side opening 22 is about 1/3 of the fully opened state. Moreover, the opening degree of the 2nd fluid side opening 13 has also shown the state which became about 1/3 of the full open state.

  6B is a schematic diagram of the outer cylinder 2 when the valve device 50 in the state of FIG. 5C is viewed from the opening 40 of the casing 7, and the lower diagram is FIG. 5C. FIG. 6 is a schematic view of the outer cylinder 2 when the valve device 50 in the state of) is viewed from the opening 41 of the casing 7. This figure shows a state in which the opening degree of the first fluid side opening 22 is fully opened. Further, the opening degree of the second fluid side opening 23 is also shown in a fully opened state. In this figure, the cross-sectional area ratio between the opening cross-sectional area of the opening portion of the first fluid-side opening 22 and the opening cross-sectional area of the opening portion of the second fluid-side opening 23 is the first fluid-side opening 22 in FIG. Is equal to the cross-sectional area ratio of the opening cross-sectional area of the opening portion of the second fluid side opening 23 and the opening cross-sectional area of the opening portion of the second fluid side opening 23.

  Thus, within the range of rotation of the inner cylinder 20 in which the opening degree of the first fluid side opening 22 and the opening degree of the second fluid side opening 23 change, the opening cross-sectional area of the opening part of the first fluid side opening 22 and the first The cross-sectional area ratio with the opening cross-sectional area of the opening part of the 2 fluid side opening 23 is constant.

  The opening sectional area of the opening portion of the first fluid side opening 22 corresponds to the sectional area of the first fluid side channel 14, and the opening sectional area of the opening portion of the second fluid side opening 23 is the second fluid side channel 15. Corresponds to the cross-sectional area. For this reason, the valve device 50 includes the first fluid-side channel 14 within the range of rotation of the inner cylinder 20 in which the sectional area of the first fluid-side channel 14 and the sectional area of the second fluid-side channel 15 change. The cross-sectional area ratio between the cross-sectional area and the cross-sectional area of the second fluid side channel 15 is constant.

  In such a valve device, the mixing ratio of the first fluid and the second fluid is constant within the range of rotation of the inner cylinder in which the sectional area of the first fluid side channel and the sectional area of the second fluid side channel change. The mixed fluids having different flow rates can be discharged from the mixed fluid side outlet. Therefore, for example, when water (or hot water) is adopted as the first fluid and hot water (or water) is adopted as the second fluid, the temperature is constant and the flow rate is different by rotating the inner cylinder within a predetermined range. Hot water can be discharged. For this reason, although the faucet device described in the background art has electromagnetic valves in both the hot water pipe and the water supply pipe, the number of electromagnetic valves can be reduced by using the valve device of the present invention. Thereby, the flow rate of the hot water discharged from the mixing faucet can be adjusted, and the cost and size of the faucet device can be reduced.

  In the above embodiment, both the first fluid side opening and the second fluid side opening of the inner cylinder have substantially triangular shaped openings, but are not limited to this, and each is the same or different, The opening may have a rectangular shape, an elliptical shape, a triangular shape, a cross shape, or a combination thereof.

  Moreover, although all the valve apparatuses of the said embodiment have one set which consists of a 1st fluid side opening and a 2nd fluid side opening, you may have more than one. In this case, it is preferable that the opening cross-sectional areas of the first fluid side opening and the second fluid side opening are different for each group. As a result, the flow rate of the mixed fluid and the mixing ratio of the first fluid and the second fluid can be changed at a flow rate corresponding to the opening cross-sectional area of each set, and the stepwise flow rate adjustment of the mixed fluid and the adjustment of the mixing ratio can be performed. It can be carried out.

  FIG. 7 is a schematic diagram in which an inner cylinder in which two sets of a first fluid side opening and a second fluid side opening are further added to the inner cylinder of the valve device of FIG. 1 is developed in the circumferential direction. This figure includes a first fluid side opening corresponding to the first fluid side inlet and a second fluid side opening corresponding to the second fluid side inlet. In FIG. 7, the same parts as those in the embodiment shown in FIGS. 1 to 6 are denoted by the same reference numerals, and the description thereof is omitted.

  The inner cylinder 30 in this figure includes, in addition to the set of the first fluid side opening 12 and the second fluid side opening 13, a set of the first fluid side opening 32 and the second fluid side opening 33, The first fluid side opening 52 and the second fluid side opening 53 are included.

  Both the first fluid side opening 32 and the second fluid side opening 33 are substantially triangular and have openings of the same size. The sizes of the first fluid side opening 32 and the second fluid side opening 33 are larger than the sizes of the first fluid side opening 12 and the second fluid side opening 13, and the corresponding first fluid side inlet 3 and second fluid side opening 3 are the same. It is smaller than the size of the opening of the fluid side inlet 4. The first fluid side opening 32 is formed such that the top of the substantially triangular opening overlaps the first fluid side inlet 3 first by the rotation of the inner cylinder 30. The second fluid side opening 33 is also formed so that the top of the substantially triangular opening overlaps the second fluid side inlet 4 first by the rotation of the inner cylinder 30. By carrying out like this, it can suppress that the fluid of a large flow volume is rapidly discharged from the mixed fluid side outflow port.

  Each of the first fluid side opening 52 and the second fluid side opening 53 has a shape in which two trapezoids are combined symmetrically in the axial direction, and a semicircle is combined at one end in the circumferential direction of the inner cylinder 30 of the combined figure. Has an opening. Both the first fluid side opening 52 and the second fluid side opening 53 have the same shape and the same size. The sizes of the first fluid side opening 52 and the second fluid side opening 53 are larger than the sizes of the first fluid side opening 32 and the second fluid side opening 33, and the corresponding first fluid side inlet 3 and second fluid side opening 3 are the same. It is smaller than the size of the opening of the fluid side inlet 4. The first fluid side opening 52 is formed so that the semicircular part overlaps the first fluid side inlet 3 first by the rotation of the inner cylinder 30. The second fluid side opening 53 is also formed such that the semicircular portion overlaps the second fluid side inlet 4 first by the rotation of the inner cylinder 30. By carrying out like this, it can suppress that the fluid of a large flow volume is rapidly discharged from the mixed fluid side outflow port.

  A set of the first fluid side openings 12, 32, 52 and the second fluid side openings 13, 33, 53 is formed in the side wall portion 11 so as to be shifted in the circumferential direction for each set. The mutual positional relationship between the first fluid side opening and the second fluid side opening in each group in the circumferential direction of the side wall 11 is the same for each group.

  The valve device having the inner cylinder 30 has the first fluid side opening of each set within the range of rotation of the inner cylinder 30 in which the opening degree of the first fluid side opening and the opening degree of the second fluid side opening of each group change. The sum of the opening cross-sectional area of the opening portion and the opening cross-sectional area of the opening portion of the second fluid side opening is constant. For this reason, the flow rates in which the mixing ratios of the first fluid and the second fluid are different within the range of rotation of the inner cylinder in which the cross-sectional area of the first fluid-side channel and the cross-sectional area of the second fluid-side channel of each set change. A certain fluid mixture can be discharged from the fluid mixture side outlet. Furthermore, since the sets of the first fluid side opening and the second fluid side opening have different opening sizes for each set, for example, “large” “medium” “ The mixed fluid can be discharged at a small flow rate. Therefore, the valve device of the present embodiment can change the mixing ratio of the first fluid and the second fluid at a flow rate corresponding to the opening cross-sectional area, and can adjust the flow rate of the mixed fluid in stages between each set. Become.

  In the above embodiment, a set in which the sum of the opening cross-sectional area of the opening portion of the first fluid side opening and the opening cross-sectional area of the opening portion of the second fluid side opening is constant and the opening cross-sectional area is different for each set is shown in FIG. Two sets are added to the inner cylinder of the valve device, but the present invention is not limited to this. A set in which the cross-sectional area ratio between the opening cross-sectional area of the opening portion of the first fluid-side opening and the opening cross-sectional area of the opening portion of the second fluid-side opening is constant and the opening cross-sectional area differs for each set is shown in FIG. It can also be added. In this case, it is possible to change the flow rate of the mixed fluid of the first fluid and the second fluid at a mixing ratio according to the opening cross-sectional area ratio, and it is possible to adjust the mixing ratio of the mixed fluid step by step between each set. Become. In addition, a set in which the ratio of the cross-sectional area between the opening cross-sectional area of the opening portion of the first fluid-side opening and the opening cross-sectional area of the opening portion of the second fluid-side opening is constant, and the opening break of the opening portion of the first fluid-side opening A combination of a combination in which the sum of the area and the opening cross-sectional area of the opening portion of the second fluid side opening is constant may be used. Furthermore, an inner cylinder having two sets or four sets or more of the first fluid side opening and the second fluid side opening may be used. In either case, the flow rate of the mixed fluid and the mixing ratio of the first fluid and the second fluid can be changed at a flow rate corresponding to the opening cross-sectional area of each set. Adjustments can be made.

  Although the inner cylinder is configured to be rotatable in the circumferential direction, the valve device according to the above embodiment can be configured to be movable in the axial direction. In this case, the number of pairs of the first fluid side opening and the second fluid side opening can be increased in the axial direction, and the flow rate options for adjusting the mixing ratio of the mixed fluid can be increased. Moreover, the choice of the mixing ratio which adjusts the flow volume of mixed fluid can be increased. The larger the amount of movement in the axial direction, the finer the flow rate can be set, and both the adjustment of the mixing ratio of the first fluid and the second fluid and the adjustment of the flow rate of the mixed fluid can be adjusted in an analog manner. It becomes possible.

  For example, a screw mechanism or the like is employed for the axial movement of the inner cylinder. The screw mechanism is a mechanism that changes the circumferential rotation of the inner cylinder into an axial movement. For example, by using the rotating shaft of the inner cylinder as a screw shaft, the inner cylinder can be moved in the axial direction while rotating in the circumferential direction.

  While the present invention has been described based on the embodiments, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention. For example, two different kinds of fluids may be used as the first fluid and the second fluid in addition to combinations other than water and hot water. The valve device described above can be applied to a faucet device, but such a faucet device can be incorporated in various watering devices such as a vanity and a sink.

1, 50 Valve device 2 Outer cylinder 3 First fluid side inlet 4 Second fluid side inlet 5 Mixed fluid side outlet 6 Side wall 10, 20, 30 Inner cylinder 11 Side wall 12, 22, 32, 52 First Fluid side openings 13, 23, 33, 53 Second fluid side opening 14 First fluid side channel 15 Second fluid side channel

Claims (2)

A cylindrical outer cylinder, and a cylindrical inner cylinder that is rotatably mounted in the outer cylinder in the circumferential direction,
The outer cylinder includes a first fluid side inlet into which the first fluid flows, a second fluid side inlet into which the second fluid flows, and a mixed fluid of the first fluid and the second fluid flowing out. A fluid side outlet, and the first fluid side inlet and the second fluid side inlet are provided apart from each other in the axial direction on a side wall portion of the outer cylinder,
The inner cylinder has a first fluid side opening corresponding to the first fluid side inlet and a second fluid side opening corresponding to the second fluid side inlet on the side wall,
The rotation of the inner cylinder in the circumferential direction causes the first fluid side inlet and the first fluid side opening to overlap to form a first fluid side flow path, and the second fluid side inlet and the first fluid side inlet. The second fluid side flow path is formed by overlapping the two fluid side openings,
The cross-sectional area of the first fluid-side channel and the cross-sectional area of the second fluid-side channel change according to the rotation of the inner cylinder in the circumferential direction, respectively, and the cross-sectional area of the first fluid-side channel and the second The total of the cross-sectional area of the first fluid-side flow path and the cross-sectional area of the second fluid-side flow path is constant within the range of rotation of the inner cylinder in which the cross-sectional area of the fluid-side flow path changes, or The cross-sectional area ratio between the cross-sectional area of the first fluid-side channel and the cross-sectional area of the second fluid-side channel is formed constant ,
The inner cylinder has a plurality of sets each including the first fluid side opening and the second fluid side opening, and an opening cross-sectional area of the first fluid side opening and the second fluid side opening is different for each set. A valve device characterized by. The valve device according to claim 1, wherein the inner cylinder is further formed to be movable in the axial direction .

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