JP2013019225A - Selector valve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a selector valve capable of switching liquid from a faucet to a plurality of water distribution destinations and adjusting the flow-rate of the distributed liquid.SOLUTION: A selector valve 10 has a valve body 44 in which a liquid inflow port 45 and a plurality of water distribution ports 46 to 48 are formed and which is equipped with a switching shaft 12 for switching water distribution destinations and a flow-rate adjustment shaft 34 for adjusting the flow-rate of a distributed liquid. The switching shaft 12 is formed of a cylindrical body 14 in which a plurality of apertures 15 to 17 are formed and a first operation part 21. The flow-rate adjustment shaft 34 is formed of an adjustment part 35 and a second operation part 37, and a flow-rate adjustment component 36 is formed in the adjustment part 35. The switching shaft 12 is turned such that the apertures 15 to 17 formed in the cylindrical body 14 make the liquid inflow port 45 of the valve body 44 communicate with the water distribution ports 46 to 48. The flow-rate adjustment shaft 34 is turned and adjusted such that the flow-rate adjustment component 36 corresponding to the apertures 15 to 17 in communication with the water distribution ports 46 to 48 provides an optional flow rate.

Description

  The present invention relates to a switching valve that is connected to a faucet such as a faucet or a water purifier and can switch a water distribution destination by using a switching means, and more particularly, a switching that can adjust the flow rate of the distributed liquid and save water. Regarding the valve.

  In recent years, a switching valve that is connected to a faucet such as a faucet and can switch a plurality of water distribution destinations has been widely used. For example, water supplied from a faucet can be distributed as raw water using the switching valve. The water is distributed over a shower or distributed to an external device such as a water purifier or a dishwasher.

  There is also known a switching valve that adjusts the flow rate to be used and distributes water at a flow rate desired by the user or saves water by suppressing the flow rate. For example, the following Patent Document 1 discloses an invention of a switching valve having a multistage switching mechanism that discharges water while adjusting the flow rate such as a shower shape, a straight shape, and a shower straight shape.

  In the switching valve described in Patent Document 1, a first opening hole provided in a flow path for discharging raw water as it is, a second opening hole provided in a flow path for discharging raw water in a shower shape, and a water purifier for raw water A third opening hole provided in the flow path for supplying water, a multistage switching mechanism for moving the positions of the first, second, and third opening holes, and a first opening for closing the first, second, and third opening holes. 1, 2, 3, and an adjustment mechanism (flow rate adjustment knob) for moving the 1, 2, 3 rd valve body, and the first, second, and third openings by operating the multistage switching mechanism A flow rate that selects one of the holes, partially occludes the selected opening hole with one of the first, second, and third valve bodies by operating the adjustment mechanism, and discharges water. It is supposed to be adjusted.

  By adopting such a configuration, according to the switching valve described in the following Patent Document 1, the flow rate can be finely adjusted with a simple adjustment knob operation, and various types such as a shower shape, a straight shape, and a shower straight shape can be used. It is said that water can be discharged while finely adjusting the water discharge flow rate.

JP 2003-066444 A

  The adjustment of the flow rate in the switching valve described in Patent Document 1 is adjusted by rotating the flow rate adjustment knob. Specifically, a male screw portion is threaded on the outer periphery of the flow rate adjusting knob, and a female screw portion is threaded on the outer wall of the switching valve to which the flow rate adjusting knob is screwed. When the flow rate adjusting knob is rotated, the flow rate adjusting knob advances and retreats in the axial direction, and as a result, the sliding position of the sliding valve body that advances and retreats in the axial direction along the inner peripheral surface inside the switching valve. It is designed to advance and retract in the axial direction. That is, when the flow rate adjusting knob is turned, the sliding valve body slides in the axial direction inside the cylindrical body, and the flow rate is adjusted by adjusting the area of each opening hole provided in the peripheral wall of the cylindrical body. Yes.

  However, in the switching valve described in Patent Document 1, the flow adjustment knob is rotated to adjust the flow rate, and the sliding valve body is slid in the axial direction. Since it is converted into motion, the structure is complicated, and the sliding valve body slides inside the cylindrical body. Therefore, the sliding valve body is difficult to move, and the sliding valve body can be moved by sliding. There is a risk of deterioration.

  In view of such problems of the prior art and problems to be solved, the present inventor, in a switching valve provided with a switching means for switching a water distribution destination for distributing a liquid such as water flowing from a faucet such as a faucet, Since the flow rate adjusting shaft is arranged inside the switching shaft, the flow rate adjusting member is formed on the flow rate adjusting shaft, and the flow rate adjusting shaft is rotated, the flow rate contact member can be rotated together. The inventors have found that the above problem can be solved and the flow rate of water distributed from the opening formed in the switching shaft can be adjusted, and the present invention has been completed.

In order to solve the above problems, the switching valve according to the first aspect of the present invention includes:
A liquid inlet through which a liquid flows from a water faucet, and a valve body formed with a plurality of water distribution ports through which the liquid is distributed,
The valve main body is a switching valve provided with a switching shaft for switching the distribution destination of the supplied liquid and a flow rate adjusting shaft for adjusting the flow rate of the liquid distributed from the plurality of distribution ports,
The switching shaft has an opening portion that is open on one side and a bottom portion that is closed on the other side, a cylindrical body in which a plurality of openings are formed, and a first body formed on the opposite side of the opening portion of the bottom portion. It is formed with 1 operation part,
The flow rate adjustment shaft is formed of an adjustment portion formed of a rod-like body having a size that can be accommodated in the cylindrical body of the switching shaft, and a second operation portion formed on the opposite side of the adjustment portion. In the adjustment portion, a flow rate adjustment member is formed at a position corresponding to at least one of the plurality of openings formed in the cylindrical body of the switching shaft,
The valve body is provided with a first insertion hole through which the switching shaft is inserted, a switching shaft mounting portion through which the switching shaft is mounted, and a second insertion hole through which the flow rate adjusting shaft is inserted,
The switching shaft and the flow rate adjusting shaft are mounted on the coaxial line of the switching shaft and the flow rate adjusting shaft in the valve body so that the adjusting portion is accommodated inside the cylindrical body,
An internal flow path is formed in the gap between the mounted adjustment portion and the cylindrical body,
The switching shaft rotates so that any one of the plurality of openings formed in the cylindrical body communicates with the liquid inlet of the valve body and any one of the plurality of water distribution ports. Moved,
The flow rate adjusting shaft is rotated and adjusted so that a flow rate adjusting member corresponding to the opening communicating with at least one of the water distribution ports has an arbitrary flow rate.

The switching valve of the second aspect is the switching valve of the first aspect.
The flow rate adjusting member has a width larger than the opening, and has a small diameter portion formed within a slightly larger radius or a slightly smaller radius than the radius of the adjusting portion, and gradually increases the radius from the small diameter portion. However, it is characterized in that it is formed by a variable radius portion formed by circling the adjusting portion and a large diameter portion formed by a slightly smaller radius than the inner periphery of the cylindrical body.

Further, the switching valve of the third aspect is the switching valve of the first aspect,
The flow rate adjusting member has a slightly smaller radius than the inner periphery of the cylindrical body,
A large portion formed with a width larger than the aperture;
A reduced width portion formed by gradually reducing the width from the large portion;
The adjustment portion is formed of a narrow width portion that is formed so as to become narrower when reaching the large portion.

  The switching valve according to a fourth aspect is the switching valve according to any one of the first to third aspects, wherein the switching adjustment member is formed of an elastic body.

Further, the switching valve of the fifth aspect is the switching valve of the first aspect,
The flow rate adjustment shaft has a flange portion formed between the adjustment portion and the second operation portion,
The flange portion is in contact with a contact portion formed inside the second insertion hole in the valve body,
The flange portion and the abutting portion have a slit-like concave / convex slit portion formed in one of the portions in contact with each other, and the other has at least one rib on the concave / convex slit portion. It is formed so as to be fitted to the recess.

Further, the switching valve of the sixth aspect is the switching valve of the fifth aspect,
An annular elastic member mounting groove in which an annular elastic member is mounted on the second operating portion is formed on the flow rate adjusting shaft,
An inclined portion is formed in an annular shape inside an outer end portion of the second insertion hole of the valve body,
An annular elastic member is mounted in the annular elastic member mounting groove, and the annular elastic member and the inclined portion are brought into contact when the flow rate adjusting shaft is mounted in the second mounting hole of the valve body. And

Further, the switching valve of the seventh aspect is the switching valve of the first aspect,
The bottom of the switching shaft is formed with a cylindrical projection into which the tip of the adjusting portion of the flow rate adjusting shaft is fitted.

Further, the switching valve of the eighth aspect is the switching valve of the first aspect,
The first insertion port of the valve body has an opening through which the flow rate adjusting shaft and the switching shaft mounted in the valve body are positioned and fixed in the valve body, and the switching shaft can be inserted therethrough, A rotor pressing member that supports the switching shaft and is rotatable is mounted.

Further, the switching valve of the ninth aspect is the switching valve of the first aspect,
A valve seat packing is fitted between the switching shaft and the valve body.

Further, the switching valve of the tenth aspect is the switching valve of the first aspect,
A switching handle for operating the switching shaft is attached to the first operating portion of the switching shaft, and an adjustment handle for operating the flow adjusting shaft is attached to the second operating portion of the flow adjusting shaft. It is characterized by.

Further, the switching valve of the eleventh aspect is the switching valve of the tenth aspect,
A fixing means for temporarily fixing the switching shaft on which the switching handle is mounted at a predetermined position is provided between the rotor pressing member and the switching handle.

  According to the switching valve of the first aspect, the user selects a water distribution port desired by rotating the switching shaft and the flow rate adjusting shaft arranged in the valve body, and water is distributed from the water distribution port. The flow rate can be set to a desired flow rate. In addition, since the switching shaft is formed with a plurality of apertures through which the liquid inlet and the water distribution port can be communicated by rotating the switching shaft, the switching shaft can be manufactured with a simple structure. Furthermore, the flow rate adjusting shaft can be manufactured with a simple structure because the flow rate adjusting member is formed in the adjusting portion for adjusting the flow rate. And switching of a water distribution port and adjustment of a flow rate can be performed by a simple operation, and a high water-saving effect can be obtained.

  According to the switching valve of the second aspect, the flow rate adjusting member formed on the flow rate adjusting shaft for adjusting the flow rate has a width larger than the opening, and has a slightly larger radius or a slightly smaller radius than the radius of the adjusting portion. Small diameter part formed in the range, variable radius part formed by rotating the adjustment part while gradually increasing the radius from the small diameter part, and large diameter formed with a slightly smaller radius than the inner circumference of the cylindrical body Since the flow rate can be adjusted by rotating the flow rate adjustment shaft and changing the distance from the opening of the flow rate adjustment part, it can be manufactured with a simple structure and operated. It can be done easily. In the second aspect, “formed with a radius slightly larger than or slightly smaller than the radius of the adjusting portion” means that the radius of the small diameter portion is the same as the radius of the adjusting portion, but slightly smaller than that. It may be smaller or slightly larger than that. That is, when the small diameter portion and the opening are combined, the distance between the cylindrical body and the adjustment portion is increased, so that the flow rate is fully relieved, and when the large diameter portion and the opening are combined, the flow adjustment member is Since the opening is formed with substantially the same radius as the inner periphery, the opening is in a substantially closed state, and the flow rate can be reduced or substantially stopped. Furthermore, when the variable radius portion and the opening are combined, a flow rate according to the radius of the flow rate adjusting member can be distributed, and a flow rate desired by the user can be distributed. At this time, the operation of the flow rate adjusting shaft can be performed only by rotating the flow rate adjusting shaft, and since the portion where the flow rate adjusting member is in contact with the cylindrical body is small, it can be rotated without substantial resistance.

  According to the switching valve of the third aspect, a large portion having a slightly smaller radius than the inner periphery of the cylindrical body and having a width larger than the opening, and a width gradually reduced from the large portion. Since the narrowed part and the narrowest part formed so as to become the narrowest when it goes around the adjustment part and reaches the large part, the flow rate adjustment shaft is rotated to adjust the flow rate. Since it can be performed by changing the area where the opening of the part is blocked, it can be manufactured with a simple structure and can be easily operated. Moreover, the effect of the switching valve of the second aspect can be achieved.

  According to the switching valve of the fourth aspect, by forming the flow rate adjusting member with an elastic body, the large-diameter portion of the flow rate adjusting member can be combined with the opening, so that the opening can be closed without gaps. The water can be completely stopped.

  According to the switching valve of the fifth aspect, when the flow rate adjusting shaft is rotated, the convex portion of the uneven slit formed in the flange portion of the flow rate adjusting shaft is changed to the rib formed in the contact portion of the valve body. Each time you get over, vibration is transmitted to the user's hand, and you can feel the feeling of use. Moreover, even if the amount of flowing water changes, it can suppress that a switching axis | shaft and a flow volume adjustment axis | shaft move by fitting a rib in the recessed part of an uneven | corrugated slit. In addition, the uneven slit may be formed in the valve body, and the rib may be formed in the flange portion of the flow rate adjusting shaft, and the same effect can be obtained.

  According to the switching valve of the sixth aspect, the annular elastic member attached to the flow rate adjusting shaft comes into contact with the inclined portion formed in the valve body, so that the convex portion of the concave and convex slit of the flow rate adjusting shaft is When the rib gets over, the annular elastic member is pressed by the inclined portion of the valve body, so that a high click feeling can be obtained. In addition, the uneven slit may be formed in the valve body, and the rib may be formed in the flange portion of the flow rate adjusting shaft, and the same effect can be obtained. Further, by changing the hardness, material, and shape of the annular elastic member, it is possible to cope with a change in switching torque due to water pressure, and it is possible to perform initial adjustment of the switching torque. As the annular elastic member, various seal packings such as known O-rings and V packings can be appropriately selected and used.

  According to the switching valve of the seventh aspect, the flow rate adjusting shaft is also supported by the cylindrical projection protruding from the center of the switching shaft, so that the mounting can be performed reliably and the flow rate adjusting shaft at the time of operation Therefore, the operation can be performed stably.

  According to the switching valve of the eighth aspect, the switching shaft and the flow rate adjusting shaft can be securely fixed by pressing the switching shaft and the flow rate adjusting shaft mounted inside the valve body with the rotor pressing member. Since the switching shaft is supported, it can be stably rotated.

  According to the switching valve of the ninth aspect, the space between the switching shaft and the valve body can be liquid-tight, liquid leakage and the like can be suppressed, and the switching shaft can be smoothly rotated. .

  According to the switching valve of the tenth aspect, since the handles are attached to the first operation portion of the switching shaft and the second operation portion of the flow rate adjusting shaft, the operation becomes easy.

  According to the switching valve of the eleventh aspect, since the switching shaft can be fixed in a state where each flow path of the switching shaft is properly communicated, each flow path can be reliably communicated and water leakage is suppressed. And can distribute water.

1A is a perspective view of a switching valve according to Embodiment 1, and FIG. 1B is a perspective view of the switching valve according to Embodiment 1 as seen from another direction. It is sectional drawing in the II-II line of FIG. 1A. It is sectional drawing in the III-III line of FIG. 1A. 4A is a perspective view of a switching portion of the switching valve according to Embodiment 1, and FIG. 4B is a cross-sectional view taken along line IVB-IVB in FIG. 4A. 5A is a top view of the switching unit of the switching valve according to the first embodiment, and FIG. 5B is a bottom view. 6A is a perspective view of a flow rate adjusting unit of the switching valve according to the first embodiment, FIG. 6B is a cross-sectional view taken along line VIB-VIB of FIG. 6A, and FIG. 6C is a flow rate adjustment of the switching valve according to the first embodiment. It is a perspective view from the other direction of a part. 7A is a perspective view of the valve body of the switching valve according to the first embodiment, and FIG. 7B is a cross-sectional view taken along the line VIIB-VIIB in FIG. 7A. FIG. 3 is a cross-sectional view illustrating an example of how the switching valve according to Embodiment 1 is used. 9A to 9C show the details of how the switching valve according to the first embodiment shown in FIG. 8 is used. 10A is a cross-sectional view showing another usage mode of the switching valve according to Embodiment 1, and FIG. 10B is a cross-sectional view showing still another usage mode of the switching valve according to Embodiment 1. FIG. 11A is a cross-sectional view corresponding to FIG. 2 of the switching valve according to the second embodiment, and FIG. 11B is a perspective view of a flow rate adjusting unit according to the switching valve of the second embodiment. 12A and 12B are cross-sectional views showing how the switching valve according to Embodiment 2 is used. 13A is a cross-sectional view corresponding to FIG. 2 of the switching valve according to the third embodiment, and FIG. 13B is a perspective view of a flow rate adjusting unit of the switching valve according to the third embodiment. 14A is a top view of the switching unit of the switching valve according to the third embodiment, and FIG. 14B is a bottom view of the switching unit of the switching valve according to the third embodiment. 15A is a cross-sectional view corresponding to FIG. 2 of the switching valve according to the modification, FIG. 15B is a front view of the flow rate adjusting shaft of the switching valve according to the modification, and FIG. 15C is the flow rate of the switching valve according to the modification. It is a rear view of an adjustment axis.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiment described below exemplifies a switching valve for embodying the technical idea of the present invention, and is not intended to specify the present invention as the switching valve. Other embodiments within the scope are equally applicable. In each of the following embodiments, a case where an O-ring is used as the annular elastic member will be described.

[Embodiment 1]
The switching valve according to the first embodiment will be described with reference to FIGS. As shown in FIGS. 1 to 3, the switching valve 10 according to the first embodiment is attached to a faucet such as a faucet, and guides the inflowing liquid to a plurality of water distribution destinations. The switching unit 11 for switching the water distribution destination, the flow rate adjusting unit 33 for adjusting the flow rate of the liquid to be distributed, the switching unit 11 and the flow rate adjusting unit 33 are inserted and mounted, connected to the faucet, and the liquid flows into each water distribution destination. It is comprised with the valve main body 44 which distributes water. Further, a seal packing 62 and a faucet cap 63 for connecting to a faucet are mounted on the upper part of the valve main body 44, and a raw water hole 65 for distributing the liquid as raw water and a shower-like water are distributed on the lower part. A shower cap 64 provided with a plurality of shower holes 66 is mounted, and a branch 61 connected to an external device such as a water purifier by a hose or the like is mounted on the side surface.

  As shown in FIGS. 2 to 5, the switching unit 11 rotates the switching shaft 12 that switches the water distribution destination, the rotor pressing plate 53 that rotatably fixes the switching shaft 12 to the valve body 44, and the switching shaft 12. The switch handle 13 is operated.

  The switching shaft 12 has an opening 18 that is open on one side and a bottom 19 that is closed on the other, and is formed on the opposite side of the cylindrical body 14 in which a plurality of openings are formed and the opening 18 of the bottom 19. The first operation unit 21 is formed. Further, a cylindrical projection 19 a having a diameter smaller than the diameter of the cylindrical body 14 is formed on the bottom portion 19 of the switching shaft 12.

  The opening 18 is formed in a circular shape having a predetermined diameter, and is a portion into which a flow rate adjusting shaft 34 described later is inserted when the switching valve is assembled. Moreover, the cylindrical protrusion 19a formed in the bottom part 19 which opposes the opening part 18 is formed in the diameter smaller than the diameter of the opening part 18, and is formed protruding predetermined length. The cylindrical projection 19a is a portion in which a distal end portion 34a of a flow rate adjusting shaft 34 described later is inserted and supported.

  The cylindrical body 14 is a portion that forms the internal flow path 20 through which the liquid flowing into the valve main body 44 passes, and the cylindrical body 14 extends from any one of a plurality of openings formed in the cylindrical body 14. The liquid flows in and water is distributed from any one of the other openings. Details of this water distribution state will be described later. In the first embodiment, three holes are formed in the cylindrical body 14. Specifically, two of the three openings, the first opening 15 and the second opening 16, are formed substantially at the center of the cylindrical body 14 so as to face the side surface of the cylindrical body 14, and flow from the valve body 44. It is formed at a position corresponding to the position. At this time, the first opening 15 has a circular shape, and the second opening 16 has an elongated oval shape. Further, the other third opening 17 is circular, and is shifted from the position where the first opening 15 is formed in the axial direction of the cylindrical body 14 and is formed side by side with the first opening 15.

  The first operating portion 21 is formed integrally with the cylindrical body 14 and can rotate the cylindrical body 14 mounted in the valve main body 44 by rotating the first operating portion 21. is there.

  In the first embodiment, the first pressing portion 21 is provided with a rotor pressing plate 53 that fixes the switching shaft 12 to the valve body 44 so as to be rotatable. The rotor pressing plate 53 is formed of a cylindrical member having a predetermined thickness in which a through hole 53a through which the first operating portion 21 passes is formed at the center. The rotor pressing plate 53 is disposed outside the cylindrical member. Two screwing portions 53b to which screws for fixing the valve body 44 to the valve body 44 are screwed are provided. Note that the number of screwing portions may be more than two. Further, instead of the screw, for example, a hook portion formed in a hook shape and a structure in which the hook portion is hooked may be provided so as to be fixed by so-called patching. You may make it use a patchon stop together. In addition, a first O-ring 23 is attached to the first groove portion 22 formed on the outer periphery of the first operation portion 21 between the rotor pressing plate 53 and the first operation portion 21 so as to be liquid-tight. Furthermore, the second O-ring 25 is attached to the second groove portion 24 formed on the outer periphery of the rotor pressing plate 53 at a portion where the valve pressing body 53 of the rotor pressing plate 53 is mounted and is made fluid-tight.

  The first operation unit 21 is equipped with a switching handle 13 for operating the switching shaft 12. The switching handle 13 includes a coupling unit 27 coupled to the first operation unit 21 and a handle unit 28 operated by a user. In addition, the handle portion 28 is formed in a circular cylinder having a large diameter so that the user can easily operate it, and a concave portion 28a is formed on the outer periphery of the handle portion 28 so that the user can easily grip it. Yes. Furthermore, the mark protrusion 29 is formed so that the user can visually confirm the water distribution destination.

  Further, the switching handle 13 is formed with a screw hole 30 through which a screw is inserted, and a switching cap 31 for concealing the hole and suppressing water immersion is mounted.

  Further, the switching handle 13 includes a fixing means 32 so that the position where the switching shaft 12 distributes water can be seen. When the positioning hole formed in the rotor pressing plate 53 and the position of the fixing means 32 coincide with each other, the switching handle 13 is temporarily fixed. It has become so. Since this structure is well known, a detailed description thereof is omitted. For example, it is conceivable that two balls and a spring are arranged between these balls and the balls are fitted into the positioning holes.

  Next, the flow rate adjusting unit 33 will be described. As shown in FIGS. 2, 3 and 6, the flow rate adjustment unit 33 is disposed at a position opposite to the switching unit 11 with the valve body 44 interposed therebetween, and a flow rate adjustment shaft 34 for adjusting the flow rate and the flow rate adjustment shaft. An adjustment handle 43 that rotates and operates the shaft 34 is configured.

  The flow rate adjusting shaft 34 is formed by an adjustment portion 35 integrally formed with a flow rate adjustment member 36 for adjusting the flow rate, and a second operation portion 37 formed to protrude to the opposite side of the adjustment portion 35. In the first embodiment, a case where one flow rate adjusting member 36 is formed will be described.

  The adjustment unit 35 is formed of a rod-shaped body having a smaller diameter than the inner diameter of the cylindrical body 14 of the switching shaft 12 and is a portion disposed inside the cylindrical body 14 of the switching shaft 12. Further, the tip end portion 34 a of the flow rate adjusting shaft 34 is formed with a diameter smaller than the diameter of the flow rate adjusting shaft 34, and when the tip end portion 34 a is attached to the valve body 44, the cylindrical body 14 of the switching shaft 12. It becomes a part fitted inside the cylindrical projection 19a formed inside. At this time, the protrusion 34b is formed in an annular shape on the outer periphery of the distal end portion 34a, and when the distal end portion 34a is fitted into the cylindrical projection 19a, the area of the contacted portion is minimized. Therefore, the resistance at the time of switching can be reduced.

  The flow rate adjusting member 36 is formed at a position corresponding to an arbitrary hole formed in the cylindrical body 14 of the switching shaft 12. The shape of the flow rate adjusting member 36 is larger than the (third) aperture 17 formed in the cylindrical body 14, and includes a small diameter portion 36 a formed with the same radius as the radius of the adjusting portion 35, and a small diameter portion 36 a. A shape formed by a variable radius portion 36b formed by rotating the adjusting portion 35 while gradually increasing the radius and a large diameter portion 36c formed by substantially the same radius as the inner periphery of the cylindrical body 14 The cross-sectional shape is, for example, a vortex. The small diameter portion 36a may be formed slightly larger than the radius of the adjustment portion 35, or may be formed slightly smaller. Furthermore, the large diameter portion 36 c may be formed slightly smaller than the inner periphery of the cylindrical body 14. With this configuration, when the flow rate adjusting shaft 34 is adjusted to the small diameter portion 36a, a larger flow rate or a slightly larger flow rate can be obtained, and the flow rate adjusting shaft 34 can be made larger. When matched with the diameter portion 36c, it is possible to design such that a very small flow rate can be obtained, and the range of design of the manufactured switching valve can be widened. Furthermore, by forming the flow rate adjusting member 36 with an elastic body, the large diameter portion of the flow rate adjusting member is matched with the opening, so that the opening can be closed without a gap and water can be completely stopped. It becomes like this.

  In addition, the second operation portion 37 has two grooves in which the O-ring is mounted. A third O-ring 39 is attached to a third groove 38 formed at a position close to the adjusting portion 35 among these grooves. The third O-ring 39 has a flow rate adjusting shaft 34 attached to the valve main body 44. Sometimes it will be liquid tight and turn.

  A fourth O-ring 41 is attached to the fourth groove portion 40 formed at a position far from the adjustment portion 35. Similarly to the third O-ring 39, the fourth O-ring 41 is also liquid-tight and rotated when the flow rate adjusting shaft 34 is mounted on the valve main body 44. Further, the fourth O-ring 0 comes into contact with a part of the valve main body 44, and details will be described later. In addition, although the case where O-rings were attached to the second operation unit 37 at two locations has been described, the present invention is not limited to this and may be at one location. In this case, the third O-ring mounted on the inner side can be omitted, and only the fourth O-ring mounted on the outer side can be liquid-tight and rotated, thereby reducing resistance during rotation. Can do.

  In addition, an adjustment handle 43 is attached to the end of the second operation unit 37. The adjustment handle 43 is formed of a bottomed cylindrical body that is open on one side, and an opening 43a through which a screw is inserted is formed in the bottom portion. A first locking portion 43 b that protrudes from the inner periphery of the adjustment handle 43 is formed inside the adjustment handle 43. The first locking portion 43b regulates the movement of the adjustment handle 43 when a flow rate adjusting portion 33 of the valve main body 44, which will be described later, is mounted. The first locking portion 43b is for rotating only a certain section. The flow rate can be adjusted within the rotation range. The adjustment handle 43 is fixed by passing a screw through the opening 43a and screwing it into the second operation portion.

  Further, a flange 42 formed with a slightly smaller radius than the inner periphery of the cylindrical body 14 is formed between the adjustment unit 35 and the second operation unit 37. At least one rib 42b is formed on a surface 42a that is in contact with a part of the valve main body 44 on the second operating portion 37 side of the flange 42. In addition, when the rib is formed at two or more places, it is preferable that the ribs are arranged at equal intervals, and in this way, the deviation of the shaft core can be suppressed when the flow rate adjusting shaft is rotated. Can be further stabilized. In the first embodiment, two ribs 42b are formed at opposing positions. This rib will be described later.

  Next, the valve body 44 will be described. As shown in FIGS. 2, 3 and 7, the valve main body 44 is formed with a first insertion hole 44a through which the switching shaft 12 is inserted and a second insertion hole 44b through which the flow rate adjusting shaft 34 is inserted. In the center, the cylindrical body 14 of the switching shaft 12 is rotatably arranged, and a hollow switching shaft mounting portion 49 that communicates with the first insertion hole 44a and the second insertion hole 44b is formed. This switching shaft mounting portion A plurality of openings are formed in 49. Further, on the upper part of the valve main body 44, a circular packing installation portion 50 having a predetermined depth at which the seal packing 62 can be mounted and having a liquid inlet 45 formed at the center, the seal packing 62 and the switching valve 10 are provided. A circular faucet cap connection portion 51 is formed to which a faucet cap 63 for fixing a portion connected to the faucet is connected by screwing.

  A first water distribution port 46 and a second water distribution port 47 are formed in the lower part of the valve body 44, and the first water distribution port 46 is formed at a position facing the liquid inlet 45 in the upper part of the valve body 44. The second water distribution port 47 is formed in parallel with the first water distribution port 46 on the axis. At this time, the first water distribution port 46 and the second water distribution port 47 are formed in a circular shape having the same size. In addition, a circular shower cap mounting portion 52 to which the shower cap 64 is mounted by screwing is formed at the lower portion of the valve body 44.

  Further, a third water distribution port 48 is formed on the side surface of the valve main body 44, and a branch mounting portion 58 to which the branch 61 is mounted is formed on the side surface of the valve main body 44 where the third water distribution port 48 is formed. Has been.

  Further, a partition projection 55 formed parallel to the axis of the valve main body 44 for mounting the valve seat packing 54 is opposed to the inner surface of the switching shaft mounting portion 49 of the valve main body 44 with the partition projection 55 as a center. Two packing grooves 56, 56 are formed along the inner circumference of the switching shaft mounting portion 49 in parallel with the axis on which the partition projections 55 are formed.

  On the first insertion hole 44a side, a rotor pressing plate mounting portion 71 having a diameter larger than that of the switching shaft mounting portion 49 on which the rotor pressing plate 53 is mounted on the valve main body 44 is formed. Two screwing portions 53b for fixing the two are formed.

  A contact portion 57 that contacts the flange 42 formed on the flow rate adjusting shaft 34 is formed inside the second insertion hole 44b. The contact portion 57 is formed with a slit 57a formed in a slit shape in a circumferential shape, and is fitted to a rib 42b formed in the flange 42. By fitting the concave / convex slit 57a formed in the valve body 44 and the rib 42b of the flange 42 formed in the flow rate adjusting shaft 34, the flow rate adjusting shaft 34 moves unexpectedly even if the flow rate changes. Can be suppressed.

  Further, an annular groove 59 is formed around the circumference of the second insertion hole 44b where the concave and convex slits 57a are formed, and the end portion 14a of the cylindrical body 14 of the switching shaft 12 is inserted into the annular groove 59. Thus, the shaft center can be prevented from being displaced when the switching shaft 12 is rotated, and the cylindrical body 14 can be brought into uniform contact with the surface of the valve seat packing 54. Therefore, liquid leakage can be suppressed.

  An inclined portion 60 is formed in an annular shape on the inner peripheral surface of the outer end portion of the second insertion hole 44b. The inclined portion 60 comes into contact with the fourth O-ring 41 attached to the second operation portion 37 of the flow rate adjusting shaft 34. Further, a protruding second locking portion 44b1 is formed on the outer peripheral surface of the outer side of the second insertion hole 44b. The second locking portion 44 b 1 is a portion that is engaged with the first locking portion 43 b formed on the adjustment handle 43.

  The seal packing 62 is formed of a circular elastic body having a predetermined thickness, and a connection port 62a to which a water faucet is connected is formed at the center, and the connection port 62a and the packing installation part 50 are formed. Are formed so as to correspond to the openings. Moreover, the faucet cap 63 is for fixing the part connected with the switching valve 10 formed in the faucet through the seal packing 62 installed in the packing installation part 50. The faucet cap 63 is a circular plate-like body 63a that covers the upper surface of the seal packing 62 installed in the packing installation section 50 and is coupled to the faucet cap connection section 51 of the valve body 44 by screwing. A drooping portion 63b is formed on the outer periphery of the plate-like body 63a, and the upper surface of the faucet cap 63 is cut into a circle so that a part including the connection port 62a of the seal packing 62 appears.

  The shower cap 64 is a circular plate-like body 64a that is attached to the lower part of the valve main body 44 and has a raw water hole 65 that serves as a hole for distributing raw water at the center, and is a plate-like body excluding the raw water hole 65 portion. A plurality of small holes are formed in 64a, and the plurality of holes serve as shower holes 66 capable of shower-like water distribution. Further, a standing portion 64b is formed standing from the periphery of the circular plate-like body 64a, and this standing portion 64b is coupled to the shower cap mounting portion 52 of the valve body 44 by screwing. Moreover, the periphery of the raw | natural water hole 65 of the center of the shower cap 64 is set up, and the raw | natural water hole standing part 67 in which the several step part was formed is formed. In the first embodiment, two first step portions and second step portions are formed. A diffusion plate 70 is provided on the first step portion 67 a of the raw water hole standing portion 67. The diffusion plate 70 is formed of a circular thin plate body, and once the liquid flowing out from the second water distribution port 47 of the valve body 44 provided above the diffusion plate 70 is applied to the diffusion plate 70, Since the liquid flows on the diffusion plate 70, the liquid can be evenly distributed in the plurality of shower holes 66 of the shower cap 64 disposed below, and water distribution in the shower can be performed evenly.

  A fifth O-ring 68 is attached to the second step portion 67b. When the shower cap 64 is attached to the valve body 44, the fifth O-ring 68 can make the space between the first water distribution port 46 of the valve body 44 and the raw water hole 65 of the shower cap 64 liquid-tight. Further, a gap for mounting the sixth O-ring 69 is formed in the upper part inside the standing part 64 b of the shower cap 64 and the upper part of the shower cap mounting part 52 of the valve body 44, and the sixth O-ring 69 is mounted. As a result, the valve body 44 and the shower cap 64 can be liquid-tight.

  Next, assembly of the switching valve 10 will be described with reference to FIGS. First, the third and fourth O-rings 39 and 41 are mounted on the second operation portion 37 of the flow rate adjusting shaft 34, and the flow rate adjusting shaft 34 is inserted from the first insertion hole 44a of the valve body 44 in which the valve seat packing 54 is previously mounted. The second operation portion 37 is inserted first, and the second operation portion 37 is attached to the second insertion hole 44 b of the valve body 44. At this time, the concavo-convex slit 57a formed inside the second insertion hole 44b of the valve body 44 and the rib 42b formed on the flange 42 of the flow rate adjusting shaft 34 are fitted. Then, the adjustment handle 43 and the second operation portion 37 are positioned and fixed with screws.

  Next, the switching shaft 12 with the first O-ring 23 attached to the first operating portion 21 is inserted through the first insertion hole 44a from the end portion 14a of the cylindrical body 14 and is disposed in the switching shaft mounting portion 49 in the valve body 44. Then, the end portion 14 a of the cylindrical body 14 is mounted in contact with the annular groove 59 of the switching shaft mounting portion 49 of the valve body 44. Then, the rotor pressing plate 53 having the second O-ring 25 mounted thereon is mounted on the rotor pressing plate mounting portion 71 of the valve main body 44, and is fixed using screws. Thereafter, the switching handle 13 is fixed to the first operating portion 21 with a screw, and the screw hole 30 of the switching handle 13 is closed by attaching a switching cap 31.

  Next, the shower cap 64 equipped with the diffusion plate 70, the fifth O-ring 68 and the sixth O-ring 69 is screwed onto the lower part of the valve body 44.

  Next, the seal packing 62 is installed in the packing installation part 50 of the valve body 44, the portion to be connected to the faucet switching valve 10 and the connection port 62 a of the seal packing 62 are communicated, and the faucet cap 63 is connected to the valve body 44. Attach by screwing onto the top of. Then, the branch 61 is mounted on the branch mounting portion 58, and the assembly of the switching valve is completed.

  Next, with reference to FIGS. 2, 3, and 8 to 10, a usage mode of the switching valve 10 according to the first embodiment will be described. The switching valve 10 according to the embodiment can distribute the liquid flowing in from the faucet as raw water or a shower, or distribute it to a branch connected to a water purifier or the like. The flow rate can be adjusted.

  First, the case where water is distributed as a shower will be described. In order to be distributed as a shower, a liquid inlet 45 formed in the valve body 44, a third opening 17 formed in the cylindrical body 14 of the switching shaft 12, and a second water distribution port formed in the valve body 44. 47 to communicate with each other. This operation is performed by rotating the switching handle 13. At this time, the fixing means 32 is provided on the switching body 13 of the valve body 44 and the switching unit 11 so that the position where the water is distributed as a shower can be seen. When the fixing means 32 reaches the shower position, it can be determined by listening to vibrations and sounds transmitted to the user's hand. Further, the position of the shower can be visually determined using the mark protrusion 29 formed on the switching handle 13 as a mark.

  When the switching shaft 12 is rotated and selected at the shower position, the flow path in the switching valve 10 includes the liquid inlet 45 of the valve body 44, the second opening 16 of the cylindrical body 14 of the switching shaft 12, and the cylindrical body. 14 and the adjustment portion 35 of the flow rate adjusting shaft 34, the third opening 17 of the cylindrical body 14 of the switching shaft 12, the second water distribution port 47 of the valve body 44, and the shower of the shower cap 64. The holes 66 are in this order.

  When the liquid is distributed as a shower, the flow rate of the shower can be adjusted by operating the flow rate adjustment unit 33. That is, when the adjustment handle 43 is rotated and the flow rate adjusting shaft 34 is rotated, the flow rate adjusting member 36 formed in the adjusting portion 35 is rotated. Since the flow rate adjusting member 36 has the shape as described above, the small diameter portion 36a of the flow rate adjusting member 36 corresponds to the third opening 17 of the cylindrical body 14 of the switching shaft 12 when the flow rate is fully improved. Thus, the adjustment handle 43 is rotated. On the other hand, when the flow rate is minimized, the adjustment handle 43 is rotated so that the large diameter portion 36 c of the flow rate adjusting member 36 corresponds to the third opening 17 of the cylindrical body of the switching shaft 12. And when making arbitrary flow volume, the adjustment handle 43 is rotated so that the variable radius part 36b of the flow volume adjustment member 36 may correspond to the 3rd opening 17 of the cylindrical body 14 of the switching shaft 12, and arbitrary flow volume is set. Can be adjusted.

  In this adjustment, by turning the variable radius portion 36b of the flow rate adjusting member 36 within a certain range, the gap with the third opening 17 changes, so that the flow rate flowing therethrough is increased or decreased. It is something that can be done. It should be noted that whether the flow rate is completely reduced or minimized is determined by a second engagement formed on the outer peripheral surface of the first locking portion 43b formed on the adjustment handle 43 and the second insertion hole 44b of the valve body. It can be determined at each position where the stop 44b1 is engaged. That is, the flow rate becomes completely clear at one engaging position, the adjustment handle 43 is rotated, and the flow rate is minimized when the other engaging position is reached. This makes it easier to determine the flow rate that is used and makes it easier to understand the flow rate that you want to use. Furthermore, by using any one of these positions as a reference, an arbitrary flow rate can be used as a reference, and the user can easily handle it.

  Further, the uneven slit 57a formed on the inner side of the second insertion hole 44b of the valve body 44 and the rib 42b formed on the flange 42 of the flow rate adjusting shaft 34 are fitted, whereby the flow rate adjusting shaft 34 is hydraulically It is possible to suppress movement without permission.

  Adjustment is achieved by contacting the inclined portion 60 formed on the inner surface of the outer side of the second insertion hole 44b of the valve body 44 with the fourth O-ring 41 attached to the second operation portion 37 of the flow rate adjusting shaft 34. When the handle 43 is rotated, when the rib 42b gets over the convex part of the concave / convex slit 57a, the flow rate adjusting part 33 moves against the elastic force of the fourth O-ring 41, and then the rib 42b is fitted again into the adjacent concave part. When this is done, the elastic force of the fourth O-ring 41 is released, and a greater vibration (click feeling) can be given to the user.

  Next, another water distribution destination will be described with reference to FIG. When the water distribution is used as raw water, the switching shaft 12 is rotated, the liquid inlet 45 of the valve body 44, the second opening 16 of the cylindrical body 14 of the switching shaft 12, the cylindrical body 14 and the flow rate adjusting shaft 34. The internal flow path 20 formed between the adjustment portion 35, the first opening 15 of the cylindrical body 14, the first water distribution port 46 of the valve body 44, and the raw water hole 65 of the shower cap 64 are arranged in this order. At this time, since the second opening 16 of the cylindrical body 14 is formed in an oval shape, it can communicate with the liquid inlet 45 of the valve body 44 even if the switching shaft 12 is rotated.

  Further, the flow path when the water distribution destination is the branch 61 connected to the water purifier or the like rotates the switching shaft 12 to open the liquid inlet 45 of the valve body 44 and the second opening of the cylindrical body 14 of the switching shaft 12. Hole 16, internal flow path 20 formed between cylindrical body 14 and adjusting portion 35 of flow rate adjusting shaft 34, second opening 16 of cylindrical body 14, third water distribution port 48 of valve body 44, branch 61 In order. At this time, since the second opening 16 of the cylindrical body 14 is formed in an oval shape, both the liquid inlet 45 and the third water distribution port 48 of the valve body 44 can be communicated with each other.

  With such a configuration, the switching valve of Embodiment 1 selects the water distribution port desired by the user by rotating the switching shaft and the flow rate adjusting shaft arranged in the valve body, and The flow rate distributed from the water distribution port can be set to a desired flow rate. In addition, since the switching shaft is formed with a plurality of apertures through which the liquid inlet and the water distribution port can be communicated by rotating the switching shaft, the switching shaft can be manufactured with a simple structure. Furthermore, the flow rate adjusting shaft can be manufactured with a simple structure because the flow rate adjusting member is formed in the adjusting portion for adjusting the flow rate. Then, switching of the water distribution port and adjustment of the flow rate can be performed with a simple operation.

[Embodiment 2]
In the switching valve 10 of the first embodiment, the flow rate adjusting member 36 formed on the flow rate adjusting shaft 34 is one of the portions corresponding to the third opening 17 when water is distributed as a shower. However, the flow rate adjusting member may be formed in a portion corresponding to another opening.

  Therefore, the switching valve 10 </ b> A according to the second embodiment will be described in the case where two flow rate adjusting members 36 are formed on the flow rate adjusting shaft 34. Note that the switching valve 10A according to the second embodiment is different from the switching valve 10 according to the first embodiment only in the structure of the flow rate adjusting shaft 34A. Is omitted.

  As shown in FIGS. 11 and 12, in the switching valve 10A according to the second embodiment, two flow rate adjusting members 36A are formed on the adjusting portion 35A of the flow rate adjusting shaft 34A attached to the switching valve 10A. These flow rate adjusting members 36A have the same structure. When the switching valve 10A is assembled, the flow rate adjusting member 36A is distributed as raw water with the first flow rate adjusting member 36A1 disposed at a position corresponding to the third opening 17 of the switching shaft 12 distributed as a shower. The second flow rate adjusting member 36A2 is disposed at a position corresponding to the first opening 15 of the switching shaft 12. Other configurations are the same as those of the flow rate adjusting shaft 34 of the first embodiment, and the assembly of the switching valve 10A of the second embodiment is the same as that of the switching valve 10 of the first embodiment.

  The method of using the switching valve 10A of the second embodiment is the same as that of the switching valve 10 of the first embodiment when distributing water as a shower. The flow path for distributing raw water is the same as that for draining the raw water of the first embodiment, but an internal flow path formed between the cylindrical body 14 of the switching shaft 12 and the adjusting portion 35A of the flow rate adjusting shaft 34A. When being discharged from 20 into the first opening 15 of the cylindrical body 14, the flow rate is adjusted by the second flow rate adjusting member 36A2 of the adjusting portion 35A. Although the details are the same as in the case of the shower, the flow rate is adjusted by rotating the flow rate adjusting member formed on the flow rate adjusting shaft 34A by rotating the adjustment handle 43.

  In addition, although the 2nd opening connected to a water purifier etc. also respond | corresponds with a 2nd flow volume adjustment member, since the 2nd hole is formed in the ellipse as mentioned above, it is 2nd flow volume adjustment. The effect of adjusting the flow rate by the member is small.

[Embodiment 3]
In Embodiment 1, the switching valve 10 capable of adjusting the flow rate when distributing water as a shower is shown, and in Embodiment 2, the switching valve 10A capable of adjusting the flow rate when distributing water as a shower and raw water is shown. . In the switching valve 10B according to the third embodiment, a switching valve 10B capable of adjusting the flow rate when the water is distributed as a branch as well as the shower and raw water will be described. Note that the switching valve 10B according to the third embodiment is different from the switching valves 10A and 10B according to the first and second embodiments only in a part of the structure. Description is omitted.

  As shown in FIGS. 13 and 14, the switching valve 10 </ b> B according to the third embodiment includes each opening formed in the cylindrical body 14 </ b> B of the switching shaft 12 attached to the valve main body 44 and each valve formed in the valve main body 44 </ b> B. The formation positions of the water distribution ports and the number and formation positions of the flow rate adjusting members 36B formed on the adjusting portion 35B of the flow rate adjusting shaft 34B are different.

  Four openings are formed in the cylindrical body 14B, and two of the four openings, the first opening 15B and the second opening 16B, are opposed to the side surface of the cylindrical body 14B substantially at the center of the cylindrical body 14B. And is formed at a position corresponding to the position flowing in from the valve main body 44B. At this time, the first opening 15B has a circular shape, and the second opening 16B has an elongated oval shape. The other third opening 17B has a circular shape and is shifted from the position where the first opening 15B is formed in the axial direction of the cylindrical body 14B to the opening direction of the cylindrical body 14B, and the first opening It is formed at a position shifted in the circumferential direction from the position of the opening 15B. Further, the other fourth opening 72 has a circular shape and is shifted from the position where the first opening 15B is formed in a direction opposite to the direction in which the third opening 17B is formed. It is formed at a position shifted from the position 15B to the opposite side to the third opening 17B in the circumferential direction.

  The flow rate adjusting shaft 34B has substantially the same shape as the first and second embodiments, but three flow rate adjusting members 36B of the adjusting portion 35B are formed at equal intervals. The three first to third flow rate adjusting members 36B1, 36B2, and 36B3 are respectively formed corresponding to the third, first, and fourth openings 17B, 15B, and 72 formed in the cylindrical body 14B of the switching shaft 12B. Has been.

  In the valve main body 44B, a liquid inlet 45 is formed in the upper part, and three water distribution ports are formed side by side on the axis in the lower part. The first to third water distribution ports 46B, 47B, and 48B are connected to faucets connected to a shower, raw water, a water purifier, and the like, respectively. Although not shown, a shower cap or a branch can be appropriately attached to the lower portion of the valve body 44.

  The assembly of the switching valve 10B of the third embodiment is the same as that of the switching valve 10 of the first embodiment. Further, the usage method of the switching valve 10B of the third embodiment is the same as that of the switching valves 10A and 10B of the first or second embodiment, and any one formed on the cylindrical body 14B of the switching shaft 12B by the rotation of the switching handle 13. By distributing any of the water distribution ports formed in the opening and the valve main body 44B, the liquid is distributed. At this time, the adjustment handle 43 can be rotated to adjust the flow rate of water distribution.

[Modification]
In the switching valve of the first to third embodiments, the case where the flow rate adjusting member 36 is formed in a vortex shape in which the small diameter portion, the variable radius portion, and the large diameter portion are formed has been described. Thus, a flow rate adjusting member that varies the area for closing the opening may be used.

  That is, as shown in FIG. 15, the flow rate adjusting member 36 </ b> C according to the changeover switching valve 10 </ b> C has a slightly smaller radius than the inner periphery of the cylindrical body 14, and is greatly formed with a width larger than the opening. Formed by a portion 36Ca, a reduced width portion 36Cb formed by gradually reducing the width from the large portion 36Ca, and a narrow width portion 36Cc formed so as to be narrowed when it goes around the adjustment portion 35 and reaches the large portion 36Ca. ing. With such a configuration, the flow rate can be adjusted not by adjusting the flow rate by the gap between the opening and the flow rate adjusting member, but also by the area of the flow rate adjusting member that closes the opening.

DESCRIPTION OF SYMBOLS 10, 10A-10C ... Switching valve 11 ... Switching part 12, 12B ... Switching shaft 13 ... Switching handle 14, 14B ... Cylindrical body 15, 15B ... 1st opening 16, 16B ... 2nd opening
17, 17B: Third aperture 18: Opening portion 19: Bottom portion 19a ... Tubular protrusion 21 ... First operation portion 33 ... Flow rate adjusting portion 34, 34A, 34B ... Flow rate adjusting shaft 35, 35A, 35B ... Adjusting portion 36 36A to 36C ... Flow rate adjusting member 36a ... Small diameter portion 36b ... Variable radius portion 36c ... Large diameter portion 36Ca ... Large portion 36Cb ... Reduced width portion 36Cc ... Narrow width portion 37 ... Second operation portion 40 ... Fourth groove portion 41 ... Fourth 4O ring 42 ... flange 42b ... rib 43 ... adjusting handle 44, 44B ... valve body 44a ... first insertion hole 44b ... second insertion hole 45 ... liquid inlet 46, 46B ... first water distribution port 47, 47B ... second water distribution Port 48, 48B ... Third water distribution port 49 ... Switching shaft mounting portion 53 ... Rotor holding plate 54 ... Valve seat packing 57 ... Abutment portion 57a ... Concave slit 60 ... Inclined portion 61 ... Branch 65 ... Raw water hole 6 ... shower holes 72 ... fourth opening

Claims (11)

A liquid inlet through which a liquid flows from a water faucet, and a valve body formed with a plurality of water distribution ports through which the liquid is distributed,
The valve main body is a switching valve provided with a switching shaft for switching the distribution destination of the supplied liquid and a flow rate adjusting shaft for adjusting the flow rate of the liquid distributed from the plurality of distribution ports,
The switching shaft has an opening portion that is open on one side and a bottom portion that is closed on the other side, a cylindrical body having a plurality of openings formed therein, It is formed with 1 operation part,
The flow rate adjustment shaft is formed of an adjustment portion formed of a rod-like body having a size that can be accommodated in the cylindrical body of the switching shaft, and a second operation portion formed on the opposite side of the adjustment portion. In the adjustment portion, a flow rate adjustment member is formed at a position corresponding to at least one of the plurality of openings formed in the cylindrical body of the switching shaft,
The valve body is provided with a first insertion hole through which the switching shaft is inserted, a switching shaft mounting portion through which the switching shaft is mounted, and a second insertion hole through which the flow rate adjusting shaft is inserted,
The switching shaft and the flow rate adjusting shaft are mounted on the coaxial line of the switching shaft and the flow rate adjusting shaft in the valve body so that the adjusting portion is accommodated inside the cylindrical body,
An internal flow path is formed in the gap between the mounted adjustment portion and the cylindrical body,
The switching shaft rotates so that any one of the plurality of openings formed in the cylindrical body communicates with the liquid inlet of the valve body and any one of the plurality of water distribution ports. Moved,
The switching valve, wherein the flow rate adjusting shaft is rotated and adjusted so that a flow rate adjusting member corresponding to the opening communicating with at least one of the water distribution ports has an arbitrary flow rate.   The flow rate adjusting member has a width larger than the opening, and has a small diameter portion formed within a slightly larger radius or a slightly smaller radius than the radius of the adjusting portion, and gradually increases the radius from the small diameter portion. However, it is formed by a variable radius portion formed by rotating the adjusting portion and a large diameter portion formed by a slightly smaller radius than the inner periphery of the cylindrical body. The switching valve described. The flow rate adjusting member has a slightly smaller radius than the inner periphery of the cylindrical body,
A large portion formed with a width larger than the aperture;
A reduced width portion formed by gradually reducing the width from the large portion;
The switching valve according to claim 1, wherein the switching valve is formed of a narrow-width portion that is formed so as to circulate around the adjustment portion and reach the large portion.   The switching valve according to claim 1, wherein the switching adjustment member is formed of an elastic body. The flow rate adjustment shaft has a flange portion formed between the adjustment portion and the second operation portion,
The flange portion is in contact with a contact portion formed inside the second insertion hole in the valve body,
The flange portion and the abutting portion have a slit-like concave / convex slit portion formed in one of the portions in contact with each other, and the other has at least one rib on the concave / convex slit portion. The switching valve according to claim 1, wherein the switching valve is formed so as to be fitted into the recess. An annular elastic member mounting groove in which an annular elastic member is mounted on the second operating portion is formed on the flow rate adjusting shaft,
An inclined portion is formed in an annular shape inside an outer end portion of the second insertion hole of the valve body,
An annular elastic member is mounted in the annular elastic member mounting groove, and the annular elastic member and the inclined portion are brought into contact when the flow rate adjusting shaft is mounted in the second mounting hole of the valve body. The switching valve according to claim 5.   2. The switching valve according to claim 1, wherein a cylindrical projection into which a tip portion of the adjustment portion of the flow rate adjusting shaft is fitted is formed at a bottom portion of the switching shaft.   The first insertion port of the valve body has an opening through which the flow rate adjusting shaft and the switching shaft mounted in the valve body are positioned and fixed in the valve body, and the switching shaft can be inserted therethrough, The switching valve according to claim 1, wherein a rotor pressing member that supports the switching shaft and is rotatable is mounted.   The switching valve according to claim 1, wherein a valve seat packing is fitted between the switching shaft and the valve body.   A switching handle for operating the switching shaft is attached to the first operating portion of the switching shaft, and an adjustment handle for operating the flow adjusting shaft is attached to the second operating portion of the flow adjusting shaft. The switching valve according to claim 1.   The fixing means for temporarily fixing the switching shaft on which the switching handle is mounted at a predetermined position is provided between the rotor pressing member and the switching handle. The switching valve described.

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