KR101230502B1

KR101230502B1 - Mix valve

Info

Publication number: KR101230502B1
Application number: KR1020100005044A
Authority: KR
Inventors: 김관홍; 양희식
Original assignee: (주)스페이스링크
Priority date: 2010-01-20
Filing date: 2010-01-20
Publication date: 2013-02-06
Also published as: KR20110085321A; JP2011149552A

Abstract

The present invention relates to a mixing valve that is capable of properly mixing and discharging two or more fluids introduced through the induction pipe. The mixing valve according to the present invention includes a main body having an upper surface open and a first inlet pipe for introducing a first fluid on one side, a discharge tube for discharging the mixed fluid, and a second inlet for introducing a second fluid. A mixing valve cover having a guide pipe formed therethrough and communicating with the lower surface from the discharge pipe, and a blocking portion for blocking free flow of the second fluid between the second inflow pipe and the guide pipe, and the main body. Installed inside and rotatably installed by a driving means, the lower body coupled to the driving means, and the upper body is elastically supported by the lower body is installed in close contact with the lower surface of the mixing valve cover is switched The upper body is configured to include a switch, the outlet for supplying the first fluid to the discharge pipe when the changeover switch is rotated to a predetermined position, and At least two discharge holes for supplying the first fluid to the induction pipe when the ring switch is rotated to a predetermined position, and at least two or more connecting passages between the second inlet pipe and the induction pipe when the changeover switch is rotated to a predetermined position; Characterized in that the communication groove is formed.

Description

Mix valve

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mixing valve for a fluid, and more particularly to a mixing valve capable of mixing and discharging two or more fluids introduced through an induction pipe at a constant ratio.

Currently, various types of mixing valves are used. These mixing valves are intended to mix and discharge fluid such as liquid or gas flowing through the induction pipe at an appropriate ratio. The mixing valve is widely used for discharging hot water and cold water in a bathroom or kitchen, or for mixing fuel and air in an automobile. In recent years, it has also been used for the purpose of discharging a predetermined amount of water and washing liquid in a hand cleaner or the like.

Most conventional mixing valves are configured to be operated by manual operation of a user. While such a mixing valve has the advantage of being simple in structure, it is difficult to precisely control the mixing ratio of the fluids, and in particular, it is very difficult to properly adjust the mixing ratio according to the operating environment. On the other hand, in the case of a mixing valve employing a hydraulic or electronic control system, there is a disadvantage in that the structure is complicated and its manufacturing price is high.

The present invention has been made in view of the above circumstances, and has a technical object of providing a mixing valve having a simple structure and freely and appropriately controlling a mixing ratio of fluids mixed in the mixing valve.

Mixing valve according to the first aspect of the present invention for achieving the above object is a mixing valve for mixing and discharging the first fluid and the second fluid, the upper surface is opened and the first for introducing the first fluid to one side A main body having an inlet tube, a discharge tube for discharging the mixed fluid, a second inlet tube for introducing the second fluid therethrough, an induction tube communicating from the discharge tube to the lower surface, and the second inlet A mixing valve cover having a blocking portion for blocking free flow of the second fluid between the pipe and the induction pipe, and a lower part installed inside the main body to enable rotation by a driving means and coupled with the driving means. And a changeover switch having an upper body which is elastically supported by the lower body and is installed in close contact with the lower surface of the mixing valve cover. The upper body has a discharge port for supplying the first fluid to the discharge pipe when the switch is rotated to a predetermined position, the discharge hole for supplying the first fluid to the guide pipe when the switch is rotated to a predetermined position, and the switch At least two communication grooves are provided to provide a connection path between the second inflow pipe and the induction pipe when rotated to a predetermined position.

In addition, the discharge tube is composed of a venturi tube, the induction tube is characterized in that the communication with the smallest inner diameter in the discharge tube.

In addition, the end of the discharge tube is characterized in that the mixing pin for additionally mixing the fluid discharged from the discharge tube is provided.

In addition, the discharge port is characterized in that it is configured so that the amount of the first fluid supplied to the discharge pipe in accordance with the rotational position of the changeover switch is changed in the circumferential direction.

In addition, the two or more communication grooves are characterized in that the size is set different from each other.

In addition, the blocking portion is characterized in that the lower surface is made of an inverted triangle shape.

In the mixing valve according to the second aspect of the present invention, in the mixing valve configured to selectively mix and discharge the second fluid with respect to the first fluid, an upper surface thereof is opened and a first inlet pipe for introducing the first fluid to one side thereof. And a main body formed therein, a discharge tube for discharging the mixed fluid, and a second inlet tube for introducing the second fluid, wherein the discharge tube is composed of a venturi tube and is introduced into the second inlet tube. 2, a first inflow hole for introducing the fluid into the changeover switch, a second inflow hole for introducing the fluid from the changeover switch, and a first communication groove for communicating the fluid introduced from the second inflow hole to the venturi tube. Mixing valve cover which is configured to be installed in the main body and is installed to be rotatable by a drive means, and the fluid flowing from the first inlet hole according to the rotation angle selectively Claim is characterized in that comprises a switch having an outlet for selectively discharged to a discharge pipe for the first fluid inside the main body according to a second communication groove and the angle of rotation of the inlet connection 2 alone.

In addition, the changeover switch is characterized in that it further comprises a discharge hole for supplying the first fluid in the body to the second inlet hole in accordance with the rotation angle.

In addition, the discharge port is characterized in that it is configured so that the amount of the first fluid supplied to the discharge pipe is changed in accordance with the rotational position of the switch to change the shape along the arc direction.

In addition, the second communication groove is formed on the upper surface of the changeover switch, is formed in the shape of a long hole in the direction perpendicular to the arc direction, the lower surface of the mixing valve cover is connected to at least the end of the second inlet hole and the second communication A third communication groove is disposed further in a direction crossing the groove, and the second inflow hole is connected to the second communication groove through the third communication groove.

In addition, the third communication groove is characterized in that the width varies in the longitudinal direction.

In addition, the rotation is freely provided inside the main body is configured to further comprise a turn, the turn is configured to rotate by the first fluid flowing through the first inlet pipe, the turn is provided with a body and wings At least one permanent magnet is provided on the body, and an outer side of the main body further includes a sensor for detecting the permanent magnet.

In addition, in the mixing valve according to the third aspect of the present invention, in the mixing valve to selectively discharge the second fluid or the third fluid with respect to the first fluid, the upper surface is opened and for introducing the first fluid to one side A main body having a first inlet tube, a discharge tube for discharging the mixed fluid, and second and third inlet tubes for introducing the second and third fluids, respectively, wherein the discharge tube is a Venturi tube. A first and second inflow holes for introducing the second and third fluids introduced into the second and third inflow pipes into the changeover switch, a third inflow hole for introducing the fluid from the changeover switch, The mixing valve cover is provided with a first communication groove for communicating the fluid flowing from the third inlet hole to the venturi tube, the inside of the main body is installed so as to be rotatable by the drive means, the rotation angle A second communication groove for selectively connecting the fluid flowing from the first and second inflow holes to the third inflow hole, and a discharge port for selectively discharging the first fluid inside the main body to the discharge tube according to the rotation angle; Characterized in that configured to include a switch.

According to the present invention having the above-described configuration, it is possible to effectively mix and discharge the first fluid and the second fluid.

In addition, the amount of the first fluid and the second fluid discharged through the discharge tube can be selectively adjusted and opened and closed respectively.

In addition, since the inside of the induction pipe for supplying the second fluid to the discharge pipe can be cleaned using the first fluid, the phenomenon in which the induction pipe is blocked by the second fluid remaining in the induction pipe can be eliminated.

1 is a perspective view of a mixing valve according to an embodiment of the present invention.
Figure 2 is an exploded perspective view of the mixing valve shown in FIG.
3 is an exploded cross-sectional perspective view of the mixing valve.
4 is a cross-sectional view of the mixing valve shown in FIG.
5 is a state of use of the mixing valve.
6A-6D are cross-sectional views of an operating state of the mixing valve.
7 is a perspective view of a mixing valve according to another embodiment of the present invention.
8 is an exploded perspective view of the mixing valve shown in FIG. 7;
9 is an exploded cross-sectional perspective view of the combination valve.
10 is a cross-sectional view of the mixing valve shown in FIG. 7.
11A-11H are operational state diagrams of a mixing valve.
12 is an exploded perspective view of a mixing valve according to another embodiment of the present invention.
13 is a cross-sectional view of the turn in FIG. 12.
14 is a cross-sectional view of the mixing valve shown in FIG. 12.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings. However, the embodiments described below exemplarily illustrate one preferred embodiment of the present invention, and examples of such embodiments are not intended to limit the scope of the present invention. The present invention can be variously modified without departing from the technical idea thereof.

1 is a perspective view of a mixing valve according to an embodiment of the present invention.

In the figure, the mixing valve has a cylindrical main body 10 and a mixing valve cover 20. The flanges 12 and 23 are respectively installed at positions corresponding to each other at an upper portion of the main body 10 and a lower portion of the mixing valve cover 20, and these flanges 12 and 23 are fastened to each other by a fastening member.

One side of the main body 10 is formed with a first inlet pipe 11 for introducing the first fluid. The upper side of the mixing valve cover 20, the second inlet pipe 22 for introducing the second fluid and the discharge for discharging the mixed fluid introduced through the first and second inlet pipes (11, 22) The tube 21 is provided.

And, the inside of the main body 10 is provided with a switch 30 for properly mixing the fluid flowing through the first and second inlet pipe (11, 22). Although not specifically shown in the drawings, a stepping motor, for example, is coupled to the lower side of the main body 10 as a driving means, and the changeover switch 30 is driven by a stepping motor to drive the first and second inlet pipes 11 and 22. The flow rate of the fluid flowing into the c) is closed and the mixing ratio is controlled.

Figure 2 is an exploded perspective view of the mixing valve shown in Figure 1, Figure 3 is an exploded cross-sectional perspective view of the mixing valve, Figure 4 is a cross-sectional view of the mixing valve.

In the figure, the main body 10 is formed in a cylindrical shape with an upper surface opened, and a support hole 13 for rotatably supporting the motor coupling shaft 31c of the changeover switch is provided on the lower surface. The first inlet pipe 11 formed at one side of the main body 10 communicates with the inside of the main body 10.

On the upper side of the main body 10, a step 14 is formed along the inner circumference. The step 14 is fitted with the bottom surface of the mixing valve cover 20. At this time, the sealing (S) is fastened to the step 14, the main body 10 and the mixing valve cover 20 is hermetically fixed by the sealing (S).

The mixing valve cover 20 is formed in a cylindrical shape, and a discharge pipe 21 and a second inlet pipe 22 are formed at an upper side thereof. The discharge tube 21 is in communication with the inner side of the main body 10, the inner diameter is configured in the shape of a banchu tube that gradually widens toward both sides from the middle portion.

The outlet of the induction pipe 25 is formed at the portion with the smallest inner diameter of the discharge pipe 21. The induction pipe 25 extends in the vertical direction from the inside of the discharge pipe 21 to the discharge pipe 21 and is bent downward to communicate with the bottom surface of the mixing valve cover 20.

When the mixing valve cover 20 is viewed from below, a blocking part 24 having an inverted triangle shape is installed between the inlet of the induction pipe 25 and the outlet of the second inlet pipe 22. The end of the blocking part 24 is installed to be horizontal with the lower surface of the mixing valve cover 20. The blocking unit 24 is for blocking the free flow of the fluid introduced through the second inlet pipe 22 into the induction pipe 25.

A support groove 26 for rotatably supporting the changeover switch 30 is formed at the center portion of the lower surface of the mixing valve cover 20. In addition, a step 27 is formed in a shape corresponding to the step 14 formed on the inner peripheral edge of the upper surface of the main body 10 on the lower outer peripheral edge of the valve cover 20.

In addition, the mixing pin 40 is preferably coupled to the end of the discharge tube 21. The mixing pin 40 is for more effectively mixing different fluids discharged through the discharge tube 21.

The changeover switch 30 has a lower body 31 and an upper body 32 that can be separated from each other. At this time, a spring 33 is installed between the lower body 31 and the upper body 32, the upper body 32 is elastically supported by the spring (33). The spring 33 is to push the upper body 32 to the upper side so that the upper surface of the upper body 32 can be in close contact with the lower surface of the mixing valve cover 20.

Although the upper surface of the upper body 32 has been described in close contact with the mixing valve cover 20 by the spring 33, the upper body 32 by the pressure of the fluid flowing through the first inlet pipe (11). Since the upper surface of the mixing valve cover 20 is in close contact with the spring 33 can be omitted if necessary.

The lower body 31 stably supports the upper body 32 and prevents the fluid inside the main body 10 from flowing out through the support hole 13 below the main body 10. The lower body 31 is formed in a disc shape and a sealing groove 31a for inserting the sealing S into the circumferential surface is formed. The diameter of the lower body 31 is set to have a negative tolerance compared to the inner diameter of the body 10.

The support bar 31b is installed at the center of the upper surface of the lower body 31 in a direction perpendicular to the lower body 31. The receiving groove 31d is provided in the center part of this support bar 31b along the longitudinal direction. The coupling shaft 32a of the upper body 32 is accommodated in this receiving groove 31d. In particular, the upper end of the support bar (31b) is provided with a cutting groove (31e) is inserted into the wing portion (32b) is installed on the upper end of the coupling shaft (32a). The wing portion 32b and the cutting groove 31e are for allowing the upper body 32 to rotate together when the lower body 31 rotates.

In addition, a motor coupling shaft 31c coupled to a driving shaft of a stepping motor (not shown) is installed at a central portion of the lower surface of the lower body 31.

The upper body 32 is made of a disc shape, and the upper surface central portion is provided with a coupling protrusion 32c rotatably coupled to the support groove 26 of the mixing valve cover 20.

A coupling shaft 32a inserted into the receiving groove 31d of the lower body 31 is installed at the center of the lower surface of the upper body 32. As mentioned above, the wing part 32b is formed in the upper part of this coupling shaft 32a.

A discharge port 32d for discharging the first fluid inside the main body 10 to the outside is formed on one side of the upper surface of the upper body 32 with respect to the coupling protrusion 32c. The discharge port 32d is provided at a position corresponding to the inlet side of the discharge pipe 21 when the changeover switch 30 is properly rotated. As will be described later, the first fluid discharged from the discharge port 32d is discharged to the outside through the discharge pipe 21. The outlet 32d is formed in an oval shape, and is preferably formed so that its width becomes narrow while going from one side to the other side. This is to adjust the amount of the first fluid discharged to the discharge tube 21 through the discharge port (32d) according to the relative position of the discharge tube 21 and the discharge port (32d).

At least two or more communication grooves 32e (32e1 to 32e3) are installed on the other side of the discharge port 32d on the upper surface of the upper body 32, and the communication groove is between the communication groove 32e and the discharge port 32d. The discharge hole 32f is provided in the position close to 32e. The communication grooves 32e are set to have a rectangular shape and their sizes are different from each other. The end of the communication groove 32e and the discharge hole are provided at positions corresponding to the inlet side of the induction pipe 22 when the changeover switch 30 is properly rotated.

The communication groove 32e is for communicating the second inflow pipe 22 and the induction pipe 25 with each other when the blocking portion 24 of the mixing valve cover 20 is disposed at a corresponding position. As described above, since the communication grooves 32e are set differently in size, the communication grooves 32e flow into the induction pipe 25 from the second inflow pipe 22 depending on which communication groove 32e is located. The amount of second fluid to be established is set.

The discharge hole 32f is provided at a position corresponding to the inlet side of the induction pipe 25 when the changeover switch 30 is properly rotated. The discharge hole 32f is used for discharging the first fluid inside the main body 10 to the induction pipe 25 to wash the second fluid remaining in the induction pipe 25 using the first fluid. The discharge hole 32f is not necessarily required. This discharge hole 32f may be omitted in some cases.

Next, the operation of the mixing valve having the above structure will be described.

5 is a state diagram of use of the mixing valve.

In the case of using the mixing valve of the present invention, first, a supply pipe for supplying first and second fluids to the first inlet pipe 11 and the second inlet pipe 22 is combined. As one preferred application, the mixing valve can be applied to a washing device for washing hands by a user. In this case, the water pipe for supplying water to the first inlet pipe 11 is coupled, and the cleaning container is connected to the second inlet pipe 22. And, the outer side of the discharge tube 21 is connected to a separate discharge tube as needed.

Further, for example, the drive shaft of the stepping motor is coupled to the motor coupling shaft 31c of the changeover switch 30 provided in the main body 10 of the mixing valve. Although not shown in detail in the drawing, the stepping motor may control the amount of rotation of the control means according to a user's operation of a separate operation means or a sensor.

When the stepping motor rotates by a predetermined angle, the lower body 31 of the changeover switch 30 rotates while the upper body 32 rotates together. When the changeover switch 30 rotates, the discharge tube 21, the second inlet tube 22, the shutoff part 24, and the induction tube 25 installed in the mixing valve cover 20 are connected to the upper body 32. The discharge port 32d, the communication groove 32e, and the discharge hole 32f provided are appropriately disposed.

When the inlet side of the discharge tube 21 is disposed between the discharge port 32d and the communication groove 32e3, and the inlet side of the guide tube 25 is disposed between the discharge hole 32f and the discharge port 32d. The inlet side of the discharge tube 21 and the guide tube 25 is closed by the upper surface of the upper body 32. Therefore, in this case, the discharge of the fluid through the discharge pipe 21 is blocked.

When the switch 30 is properly rotated so that the inlet side of the induction pipe 25 is disposed above the discharge hole 32f, the inlet side of the discharge tube 21 is the upper body 32 as shown in FIG. 6A. Is disposed above the discharge port 32d. In this state, the first fluid introduced into the main body 10 through the first inflow pipe 11 is supplied to the discharge pipe 21 through the discharge port 32d and the discharge hole 32f, and the discharge pipe 21 It is discharged to outside through).

On the other hand, as described above, the discharge tube 21 is composed of a venturi tube, and the outlet of the guide tube 25 is disposed at a portion having a small inner diameter inside the discharge tube 21. Since the inner portion of the discharge tube 21 is set smaller than both sides, the internal pressure of the discharge tube 21 is drastically lowered while passing through the center portion. Therefore, the flow velocity of the fluid introduced from the discharge port 32d is rapidly increased while passing through the central portion of the discharge pipe 21, and at this time, the fluid in the guide pipe 25 is moved into the discharge pipe 21 by the Venturi effect. It will flow in. That is, the first fluid inside the main body 10 is introduced into the discharge pipe 21 through the induction pipe 25. Therefore, at this time, the second fluid remaining in the induction pipe 25 is washed by the first fluid and discharged to the outside through the discharge pipe 21.

When the switch 30 is appropriately rotated so that the blocking portion 24 is disposed above any one of the communication grooves 32e1 to 32e3, the inlet side of the discharge pipe 21 is disposed above the discharge port 32d. do. When the blocking portion 24 is disposed above the communication groove 32e, the induction pipe 25 and the second inflow pipe 22 communicate with each other through the communication groove 32e. Therefore, in this case, the second fluid is set in a state in which the second fluid can be supplied to the discharge pipe 21 through the second inlet pipe 22 and the guide pipe 25.

In addition, when the inlet side of the discharge tube 21 is disposed above the discharge port 32d, the first fluid inside the main body 10 is discharged to the outside through the discharge port 32d and the discharge tube 21. At this time, the second fluid is introduced into the discharge pipe 21 from the induction pipe 25 and mixed with the first fluid by the venturi effect in the discharge pipe 21 as described above. The mixture of the first and second fluids discharged through the discharge tube 21 is discharged through the discharge tube 21. In addition, the fluid discharged through the discharge tube 21 is rotated along the inner circumferential surface of the discharge tube 21 by the mixing pin 40, so that the first and second fluids are mixed more effectively.

On the other hand, the amount of the second fluid supplied from the second inlet pipe 22 to the induction pipe 25 is set depending on which of the communication grooves 32e1 to 32e3 is located above. 6B shows that the blocking portion 24 is above the communication groove 32e1, FIG. 6C shows that the blocking portion 24 is above the communication groove 32e2, and FIG. 6D shows that the blocking portion 24 is above the communication groove 32e3. It is sectional drawing which shows the cross-sectional shape in the case of arrange | positioning to. As can be seen in the drawing, the communication groove 32e is to provide a connection passage between the second inlet pipe 22 and the induction pipe 25. When the size of the communication groove 32e is increased, the fluid flow between the second inlet pipe 22 and the induction pipe 25 is smoothed, thereby providing the agent supplied from the second inlet pipe 22 to the induction pipe 25. 2 The amount of fluid is increased.

On the other hand, in the embodiment shown in Figs. 1 to 4, the width of the discharge port 32d gradually decreases from the right side to the left side, and the communication groove 32e also gradually decreases in size from the left side to the right side. Therefore, when the blocking part 24 is located above the communication groove 32e1, the amount of the first and second fluids discharged through the discharge pipe 21 is reduced, and the blocking part 24 is the communication groove ( Located above 32e3), both the amount of the first and second fluids discharged through the discharge tube 21 increases.

However, in the above-described embodiment, the shape of the discharge port 32d, the communication groove 32e1, and the discharge hole 32f and the installation position thereof are not limited to a specific one, and can be changed appropriately according to the situation where the present mixing valve is applied. will be.

As described above, the mixing valve according to the present invention can effectively mix and discharge the first fluid and the second fluid. In addition, it is possible to selectively adjust the amounts of the first fluid and the second fluid discharged through the discharge tube 21, respectively. In addition, since the inside of the induction pipe 25 for supplying the second fluid to the discharge pipe 21 can be cleaned using the first fluid, the induction pipe 25 is formed by the second fluid remaining in the induction pipe 25. ) Can eliminate clogging.

7 is a perspective view of a mixing valve according to another embodiment of the present invention.

In the figure, the mixing valve is configured to include a cylindrical body 110 and a mixing valve cover 120. A plurality of fastening holes 112 are formed at an upper portion of the main body 110 to be inclined downward while following the outer circumferential surface, and fastening protrusions 128 are formed at positions corresponding to the fastening holes 112 at the side of the mixing valve cover 120. ) Is provided. When the mixing valve cover 120 is rotated with respect to the main body 110 while the mixing valve cover 120 is placed on the upper side of the main body 110, the fastening protrusion 128 moves along the fastening hole 112. 110 and the mixing valve cover 120 is fastened.

One side of the main body 110 is formed with a first inlet pipe 111 for introducing the first fluid. The upper side of the mixing valve cover 120, the second inlet pipe 122 for introducing the second fluid, the third inlet pipe 123 for introducing the third fluid, and the first to third inlet pipe (111, Discharge pipes 121 for discharging the mixed fluid introduced and mixed through the 122 and 123 are provided.

In addition, the inside of the main body 110 is provided with a switching switch 130 for properly mixing the fluids flowing through the first to third inlet pipe (111, 122, 123) as will be described later.

The motor 140 is coupled to the lower side of the main body 110 as a driving means, and the changeover switch 130 is driven by the motor 140 to the first to third inlet pipes 111, 122, and 123. The incoming fluid is selectively introduced and the mixing ratio is controlled.

The rotating plate 150 is installed below the main body 110. The rotating plate 150 is coupled to the rotating shaft of the motor 140, and rotates together with the rotating shaft when the motor 140 is driven. A plurality of slits 151 (FIG. 8) are formed at the edge portion of the rotating plate 150. And, one side of the rotating plate 150 is provided with a sensor unit 160 for detecting the slit 151, the sensor unit 160 is coupled to the main body 110 through a bracket. The sensor unit 160 includes, for example, a light emitting device and a light receiving device.

8 is an exploded perspective view of the mixing valve shown in FIG. 7, FIG. 9 is an exploded cross-sectional perspective view of the mixing valve, and FIG. 10 is a cross-sectional view of the mixing valve.

In the drawing, the main body 110 is formed in a cylindrical shape with an upper surface open, and a support hole 113 for rotatably supporting the motor coupling shaft 131c of the changeover switch is provided on the lower surface. A guide groove 113a for guiding the rotation of the changeover switch 130 is formed below the support hole 113. At this time, the guide groove 113a is installed only in a predetermined angle range on the inner circumferential surface of the support hole 113 to limit the rotation angle of the selector switch 130 to a predetermined range. The guide protrusion 131f of the changeover switch 130 is coupled to the guide groove 113a.

The first inlet pipe 111 formed at one side of the main body 110 communicates with the inside of the main body 110. In addition, a step 114 is formed along the inner circumference of the main body 110. The lower surface of the mixing valve cover 120 is coupled to the step 114.

The mixing valve cover 120 includes a cylindrical first valve cover 120-1 and a second valve cover 120-2 housed and fixed under the first valve cover 120-1. .

A fastening protrusion 128 coupled to the fastening hole 112 formed in the main body 110 is formed at the side of the first valve cover 120-1. In addition, a discharge pipe 121 and second and third inlet pipes 122 and 123 are formed on an upper surface of the first valve cover 120-1, and a second valve cover 120-2 is accommodated on the lower surface thereof. An accommodating part 120-1a is formed. The second valve cover 120-2 is fitted to the accommodating part 120-1a of the first valve cover 120-1. In addition, the accommodating part 120-1a is coupled to the coupling groove 120-2a of the second valve cover 120-2 so that the first valve cover 120-1 is the second valve cover 120-2. Protrusions 120-1b are formed to prevent rotation with respect to. In addition, a support groove 126 for rotatably supporting the changeover switch 130 is formed at a central portion of the lower surface of the second valve cover 120-2.

The above-described coupling groove 120-2a is formed at the upper side of the second valve cover 120-2, and a first communication groove 127 having a long hole shape is formed at a central portion thereof. One side of the first inflow hole 125-1 is connected to one side of the first communication groove 127. As in the embodiment shown in Figure 1, the discharge pipe 121 is composed of a venturi tube, the upper half of the venturi tube is formed on the first valve cover (120-1), the venturi tube of the second valve cover (120-2) The lower half is formed. The center portion of the venturi tube, that is, the portion having the smallest diameter, is connected through the other side of the first communication groove 127. Accordingly, the fluid flowing from the first inflow hole 125-1 is the middle portion of the discharge tube 121 through the first communication groove 127, that is, the portion having the smallest diameter in the discharge tube 121 formed of the venturi tube. Flows into.

In addition, at one side of the second valve cover 120-2, the second and third inflow holes may be disposed at positions corresponding to the second and third inlet pipes 122 and 123 of the first valve cover 120-1, respectively. 125-2, 125-3) are formed. The second inflow hole 125-2 introduces the fluid flowing through the second inflow pipe 122 into the lower side of the second valve cover 120-2, and the third inflow hole 125-3 is the third The fluid flowing through the inflow pipe 123 flows into the lower side of the second valve cover 120-2. At the upper ends of the second and third inflow holes 125-2 and 125-3, seating grooves for seating the sealing S are provided, and the sealing S is inserted therein. In addition, a sealing S is inserted into an edge portion of the first communication groove 127.

Lower ends of the second and third inflow holes 125-2 and 125-3 are selectively provided on one side of the third communication groove 132e formed on the upper surface of the switching member 132 as the changeover switch 130 rotates. Are combined. In particular, the second inflow hole 125-2 is connected to the third communication groove 132e through the second communication groove 125a formed in the lower surface of the second valve cover 120-2. The lower end of the second inflow hole (125-2) is connected to one end of the second communication groove (125a). The second communication groove 125a is formed in the direction intersecting with the third communication groove 132e, that is, in a direction parallel to the arc surface. In particular, the second communication groove 125a is formed such that its width gradually narrows from the connection portion with the second inflow hole 125-2 toward the other side, so that the second communication groove 125a and the third communication groove 132e are formed. According to the connection position of the amount of fluid flowing into the third communication groove (132e), that is, the amount of fluid flowing into the third communication groove (132e) from the second inlet hole (125-2) is to be adjusted.

The other side of the third communication groove 132e is coupled to the lower end of the first inlet hole 125-1 through the fourth communication groove 125b formed on the bottom surface of the second valve cover 120-2. In particular, the third communication groove 132e has a horizontal groove formed at a lower side thereof coupled with the first inflow hole 125-1, so that the overall shape is formed in an “L” shape. The lower side of the first inflow hole 125-1 is connected to the discharge hole 132f formed in the switching member 132 when the switching member 132 is properly rotated.

The discharge tube 121 is in communication with the inner side of the main body 110, the inner diameter is configured in the shape of a banchu tube that gradually widens toward both sides from the middle portion. As described above, the portion having the smallest inner diameter of the discharge tube 21 communicates with the first communication groove 127 formed on the upper surface of the second valve cover 120-2. As described above, one end of the first communication groove 127 is the second or third inflow hole 125-through the first inflow hole 125-1 and the fourth and third communication grooves 125b and 132e. 2, 125-3). Therefore, when the changeover switch 130 is properly rotated so that the second or third inflow holes 125-2 and 125-3 are connected to the third communication groove 132e, the venturi 21 may have a venturi phenomenon. The fluid flowing through the second or third inlet holes (125-2, 125-3), that is, the second or third inlet pipe (122, 123) is mixed with the fluid inside the main body 110 and discharged to the outside Will be.

In addition, when the switch 130 is properly rotated so that the first inflow hole 125-1 is connected to the discharge hole 132f through the fourth communication groove 125b, the fluid inside the main body 110 is discharged. It is introduced into the discharge pipe 21 through the hole 132f and the fourth communication groove 125b, the first inlet hole 125-1, and the first communication groove 127. The fluid flow path is used to clean the first inflow hole 125-1 and the first communication groove 127 using the fluid inside the main body 110.

The changeover switch 130 includes a shaft member 131 and a switching member 132 that can be separated from each other.

The shaft member 131 has one side coupled with the switching member 132 and the other side coupled with the rotation shaft 141 of the motor 140. The shaft member 131 is formed in a circumferential shape, and a sealing groove 31a for inserting the sealing S into the circumferential surface is formed, and the fluid inside the main body 110 is externally provided through the lower support hole 113. To prevent leakage.

A coupling shaft 132a for coupling with the shaft member 131 is formed at the central portion of the lower surface of the switching member 132. A through hole 132b is formed in the center portion of the coupling shaft 132a, and the support bar 131b of the shaft member 131 is inserted into the through hole 132b. The support bar 131b is inserted into the support groove 126 on the bottom surface of the mixing valve cover 120 through the through hole 132b.

As described above, the switching member 130 has the third communication groove 132e and the discharge hole 132f, and at one side, discharges the first fluid introduced into the main body 110 into the discharge tube 121. An outlet 132d for forming is formed. The discharge port 132d is provided at a position corresponding to the inlet side of the discharge tube 121 when the changeover switch 130 is properly rotated. As will be described later, the first fluid discharged from the discharge port 132d is discharged to the outside through the discharge pipe 121. The outlet 132d has a long hole shape, and is preferably formed so that its width becomes narrow while going from one side to the other side. This is for controlling the amount of the first fluid discharged to the discharge tube 121 through the discharge port 132d according to the relative position of the discharge tube 121 and the discharge port 132d.

An upper portion of the shaft member 131 is provided with a receiving groove 31d for accommodating the coupling shaft 132a of the switching member 130 to the outside of the support bar 131b. In addition, at least one cutaway groove 131b is formed in the receiving groove 31d along the longitudinal direction. A blade 132c formed on the coupling shaft 132a is coupled to the cutting groove 131b so that the shaft member 131 and the switching member 130 rotate integrally.

A motor coupling shaft 131c coupled to the rotating shaft 141 of the driving motor 140 is formed below the shaft member 131. The inner side of the motor coupling shaft 131c is formed with a rotary shaft coupling groove 311h to which the rotary shaft 141 of the motor 140 is coupled, and at the bottom thereof, a rotary plate coupling groove to which the coupling protrusion 153 of the rotation plate 150 is fastened. 131g is formed. In addition, a guide protrusion 131f coupled to the guide groove 113a of the main body 110 is formed outside the motor coupling shaft 131c as described above.

The rotating plate 150 and the sensor unit 160 are used to precisely control the rotation amount of the motor 140 by detecting the rotation angle of the motor 140.

11A and 11H are diagrams for explaining an operation state of the mixing valve, which is an outlet 132d and a third communication groove 132e installed on an upper surface of the changeover switch 130 according to the rotational operation state of the changeover switch 130. ) And the discharge tube 121, the first to third inlet holes 125-1 to 125-3, and the first, second and fourth communication grooves installed in the discharge hole 132f and the mixing valve cover 120. The arrangement relationship of (127, 125a, 125b) is shown.

In FIG. 11A, first, the discharge port 132d and the discharge pipe 121 are set to be spaced apart from each other, and the fourth communication groove 125b connected to the first inlet hole 125-1 is formed in the second and third inlet holes. The 125-2 and 125-3 and the discharge holes 132f are set in a non-connected state. In this case, therefore, the mixing valve is set in an inoperative state so that no fluid is discharged from the mixing valve.

11B and 11C illustrate the case where the changeover switch 130 is rotated by 17 degrees and 21 degrees to the left based on the state of FIG. 11A.

In this state, the discharge port 132d is partially connected to the discharge tube 121, and the fourth communication groove 125b connected to the first inlet hole 125-1 is connected to the discharge hole 132f. Accordingly, in this case, the first fluid in the main body 110 is discharged to the outside through the discharge tube 121 and the first fluid in the main body 110 is discharged through the venturi effect of the discharge tube 121. ), The fourth communication groove 125b, the first inflow hole 125-1, and the first communication groove 127 are introduced into the discharge tube 121.

This state is used when the fourth communication groove 125b, the first inflow hole 125-1, and the first communication groove 127 are cleaned using the first fluid inside the main body 110 as described above. do.

FIG. 11D illustrates a case where the changeover switch 130 is rotated 26 degrees to the left based on the state of FIG. 11A.

In this state, the discharge port 132d is first connected to the discharge pipe 121, the fourth communication groove 125b is connected to one side of the third communication groove 132e, and the other side of the third communication groove 132a is formed. 2 is connected to the inlet hole (125-2). Therefore, in this case, the first fluid inside the main body 110 is discharged to the outside through the discharge pipe 121 and is introduced through the third inlet hole 125-3 by the venturi effect of the discharge pipe 121. Fluid, ie, a third fluid flowing through the third inflow pipe 123, passes through the third and fourth communication grooves 132e and 125b, the first inflow hole 125-1, and the first communication groove 127. It is introduced into the discharge tube 121.

In this state, the first fluid and the third fluid are mixed and discharged through the discharge tube 121.

11E to 11H illustrate a state in which the third communication groove 132e is connected to the second communication groove 125a and the first fluid and the second fluid are mixed and discharged through the discharge pipe 121. Shows a state in which the mixing amount of the second fluid is changed with respect to the first fluid discharged through the discharge tube 121 according to the coupling position of the third communication groove 132e and the second communication groove 125a.

In this state, the discharge port 132d is first connected to the discharge pipe 121, the fourth communication groove 125b is connected to one side of the third communication groove 132e, and the other side of the third communication groove 132a is formed. 2 is connected to the communication groove (125a). Therefore, in this case, the first fluid inside the main body 110 is discharged to the outside through the discharge tube 121 and is introduced through the second inlet hole 125-2 by the venturi effect of the discharge tube 121. The fluid, ie, the second fluid flowing through the second inflow pipe 122, has the second to fourth communication grooves 125a, 132e, and 125b, the first inflow hole 125-1, and the first communication groove 127. It is introduced into the discharge tube 121 through.

Therefore, in this embodiment, unlike the embodiment shown in FIG. 1, it is possible to selectively mix two or more fluids and to discharge them.

12 to 14 are views showing the structure of a mixing valve according to another embodiment of the present invention, FIG. 12 is an exploded perspective view of the mixing valve, and FIG. Sectional drawing and FIG. 14 is sectional drawing which shows the cross section structure of the mixing valve which concerns on a present Example.

In this embodiment, the rotor 180 is rotated by the fluid flowing through the first inlet tube 122 inside the main body 110, and the first inlet tube 122 is based on the rotational force of the rotor 180. It is to be able to measure the flow rate of the first fluid flowing through the).

In the figure, the turn 180 is coupled to the outside of the shaft member 131 of the changeover switch 130 so that rotation is free. The turn 180 includes a cylindrical body 181, and a plurality of wings 182 are installed outside the body 181. The turn 180 is installed such that the wing 182 is disposed at a position corresponding to the outlet of the first inlet pipe 122.

In addition, as shown in Figure 13, the body 181 is provided with a plurality of permanent magnets at regular intervals. At this time, the permanent magnets are arranged so that their polarities are opposite to the neighboring magnets. Although not specifically shown in the drawings, at least one sensor is installed at a position corresponding to the permanent magnet outside the main body 110. As this sensor, for example, a Hall element for detecting a magnetic force by a permanent magnet is used.

In the present embodiment, when the first fluid is introduced through the first inlet pipe 111, the turn 180 rotates at a speed corresponding to the inflow amount, and the permanent magnet also rotates with the rotation of the turn 180. Done. Rotation of the permanent magnet is detected by the hall element, and the detection result is provided to the control means (not shown). Therefore, the control means can determine the inflow amount of the first fluid based on the detection result of the Hall element.

In the above, the Example of this invention was described. However, the present invention is not limited to the above-described embodiments and can be carried out in various modifications without departing from the technical spirit of the present invention.

For example, in the exemplary embodiment illustrated in FIGS. 7 to 11, the second inflow pipe 122 and the third inflow pipe 123 and the second and third inflow holes 125-2 and 125-3, respectively. May be configured to selectively employ any one as necessary.

In addition, in the above-described embodiment has been described as having a rotating plate 150 and a sensor unit 160 to detect the rotation angle of the motor 140, which is another arbitrary that can accurately detect and adjust the rotation angle of the motor It is possible to select and use the means.

In addition, in the above-described embodiment, the case in which the rotation 180 for measuring the inflow amount of the first fluid is described as an example of the embodiment of FIG. 7 has been described as an example, but it may be applied to the embodiment of FIG. 1 in the same manner.

10, main body, 20: mixing valve cover, 30: switch,

Claims

In the mixing valve to mix and discharge the first fluid and the second fluid,
A main body having an upper surface open and having a first inflow pipe for introducing a first fluid to one side;
A discharge tube for discharging the mixed fluid, a second inlet tube for introducing the second fluid therethrough, a guide tube communicating with the discharge tube, and a second fluid between the second inlet tube and the guide tube And a mixing valve cover having a blocking portion for blocking free flow of water,
It is installed to be rotatable by the drive means and installed inside the main body, and comprises a switch having a lower body coupled to the drive means and the upper body is installed in close contact with the lower surface of the mixing valve cover ,
The upper body has a discharge port for supplying the first fluid to the discharge tube formed in the mixing valve cover when the changeover switch is rotated to a predetermined position, and the induction pipe formed in the mixing valve cover for the first fluid when the changeover switch is rotated to a predetermined position At least two communication grooves are provided to provide a connection passage between the discharge hole for supplying to the outlet and the inlet pipe and the second inlet pipe formed in the mixing valve cover when the changeover switch is rotated to a predetermined position valve.

The method of claim 1,
The discharge tube is composed of a venturi tube, the induction tube is a mixing valve, characterized in that in communication with the smallest internal diameter inside the discharge tube.

The method of claim 1,
Mixing valves, characterized in that the end of the discharge pipe is further provided with a mixing pin for mixing the fluid discharged from the discharge pipe.

The method of claim 1,
The outlet is a mixing valve characterized in that the shape is changed along the circumferential direction is configured to change the amount of the first fluid supplied to the discharge tube in accordance with the rotational position of the changeover switch.

The method of claim 1,
Mixing valve, characterized in that the two or more communication grooves are set different in size from each other.

The method of claim 1,
The blocking portion is a mixing valve, characterized in that the lower surface is made of an inverted triangle shape.

A mixing valve configured to selectively mix and discharge a second fluid with respect to a first fluid,
A main body having an upper surface open and having a first inflow pipe for introducing a first fluid to one side;
And a discharge tube for discharging the mixed fluid, and a second inlet tube for introducing the second fluid, wherein the discharge tube is composed of a venturi tube and switches the second fluid introduced into the second inlet tube. A first inlet hole for entering the switch, a second inlet hole for introducing the fluid from the changeover switch, and a first communication groove for communicating the fluid introduced from the second inlet hole to a venturi tube formed in the discharge tube; Mixing valve cover,
A third communication groove which is installed inside the main body so as to be rotatable by a driving means, and selectively connects the fluid flowing from the first inflow hole to the second inflow hole according to the rotation angle, and according to the rotation angle. And a switching switch having a discharge port for selectively discharging the first fluid inside the main body to a discharge pipe.

The method of claim 7, wherein
The changeover switch is characterized in that it further comprises a discharge hole for supplying the first fluid in the body to the second inlet hole in accordance with the rotation angle.

The method of claim 7, wherein
The outlet is a mixing valve, characterized in that configured to change the amount of the first fluid supplied to the discharge tube in accordance with the rotational position of the switch.

The method of claim 7, wherein
The third communication groove is formed in the shape of a long hole and formed on the upper surface of the switch,
A bottom surface of the mixing valve cover is further provided with a second communication groove which is connected to at least the end of the second inlet hole and arranged in a direction crossing the third communication groove,
The second inlet hole is a mixing valve, characterized in that connected to the third communication groove through the second communication groove.

The method of claim 10,
The second communication groove is a mixing valve, characterized in that the width varies in the longitudinal direction.

The method of claim 7, wherein
The rotation is freely provided inside the main body is configured to be provided, the rotation is configured to rotate by the first fluid flowing through the first inlet pipe,
The turn is provided with a body and wings, the body is provided with at least one permanent magnet,
Mixing valve, characterized in that the outer side of the main body is further provided with a sensor for detecting the permanent magnet.

A mixing valve configured to selectively mix and discharge a second or third fluid with respect to a first fluid,
A main body having an upper surface open and having a first inflow pipe for introducing a first fluid to one side;
And a discharge tube for discharging the mixed fluid, and second and third inlet tubes for introducing the second and third fluids, respectively, and the discharge tube is composed of a venturi tube. First and second inflow holes for introducing the second and third fluids introduced into the inflow pipe to the changeover switch, a third inflow hole for inflowing the fluid from the changeover switch, and a fluid flowing from the third inflow hole Mixing valve cover having a first communication groove for communicating with the venturi tube formed in the discharge pipe,
A third communication groove which is installed inside the main body so as to be rotatable by a driving means and selectively connects the fluid flowing from the first and second inflow holes to the third inflow hole according to the rotation angle, and rotates; And a switching switch having a discharge port for selectively discharging the first fluid inside the main body to the discharge tube according to the angle.

The method of claim 13,
The changeover switch is characterized in that the mixing valve further comprises a discharge hole for supplying the first fluid in the body to the first inlet hole according to the rotation angle.

The method of claim 13,
The outlet is a mixing valve, characterized in that configured to change the amount of the first fluid supplied to the discharge tube in accordance with the rotational position of the switch.

The method of claim 13,
The third communication groove is formed in the lower surface of the mixing valve cover while being formed in a long hole shape,
A lower surface of the mixing valve cover is further provided with a second communication groove which is connected to the end of at least one of the second or third inlet hole and arranged in a direction crossing the third communication groove,
Mixing valve, characterized in that the second or third inlet hole is connected to the third communication groove through the second communication groove.

The method of claim 13,
The third communication groove is a mixing valve, characterized in that the width varies in the longitudinal direction.

16. The method according to claim 13 or 15,
The lower surface of the mixing valve cover is formed in the "L" shape and further provided with a fourth communication groove connected to the first inlet hole,
Mixing valve, characterized in that the first inlet hole is connected to the second communication groove or the discharge hole through the fourth communication groove.