WO2014042403A1

WO2014042403A1 - Energy saving water valve cartridge

Info

Publication number: WO2014042403A1
Application number: PCT/KR2013/008169
Authority: WO
Inventors: 강성호; 이찬재
Original assignee: 주식회사 신한세라믹
Priority date: 2012-09-14
Filing date: 2013-09-10
Publication date: 2014-03-20
Also published as: KR101288074B1; JP5813278B2; JP2015532957A

Abstract

The present invention relates to an energy saving water valve cartridge. The water valve cartridge includes: a lever operated to cause cold water, hot water, or mixed water to flow out; a fixed disk having a cold water inlet through which the cold water flows in, a hot water inlet through which the hot water flows in, and a mixed water discharge port; a movable disk coupled with the fixed disk so as to be capable of relative movement and which is operated with the lever when the lever is operated in order to selectively open or close the cold water inlet, the hot water inlet, and the mixed water discharge port; a disk cover coupled to the movable disk in a lower section and coupled with the lever in an upper section so as to transmit the torque of the lever to the movable disk; and a sliding guide connected with the lever in order to guide the movement of the lever, and which is connected with the disk cover on one side; and a phase operation means disposed in the disk cover and the sliding guide in order to limit the movement of the lever phase-by-phase so that the lever is operated to be on through multiple phases.

Description

Energy Saving Water Valve Cartridge

The present invention relates to an energy-saving water valve cartridge, and more particularly, by forming a discharge section of cold water and hot / cold mixed water so that stepwise operation of the lever is possible, so that only cold water is operated when the lever is first operated. It relates to an energy-saving water valve cartridge that can be discharged alone to prevent unnecessary waste of hot water and save energy.

Water valve cartridge can be widely used in faucet, water discharge, etc., to supply cold water, hot water, and cold and hot mixed water to a suitable temperature.

That is, the cold water supply and hot water supply according to the user's needs can be selectively made, and at the same time, the device for selectively supplying the mixed water with the appropriate temperature control as needed.

Most water valve cartridges having such a function are configured to discharge cold water, hot water, and mixed water through lever operation.

In other words, if the lever is rotated up or down and then rotated to one side, the cold water is discharged. If the lever is rotated in the opposite direction, the hot water is discharged. If the lever is properly adjusted, the mixed water of the cold and hot water is discharged.

However, such a conventional water valve cartridge has the following problems.

In the case where there is a user who habitually positions the operation handle at the front (center) position of the handle after operating the faucet discharge device first, there is a problem that the cold and hot mixed water is discharged when the next user turns on the operation handle. This is because the mixed water is designed to be discharged to the front (center) position of the operation handle.

In order to prevent this, Japanese Patent Application No. 2009-226460 discloses a faucet water discharge device that is improved so that only cold water is discharged from the front (center) position of the operation handle. However, in the above-described prior art, the mixing section of hot water and cold water is formed relatively less than the cold water section, so that the temperature control of the mixed water is not easy.

In addition, some users may simply leave the operation handle in a mixing section of hot water and cold water when the operation handle is turned off while using hot water. That is, since the operation handle is positioned in the mixing section, which is the place where the operation is performed, the next time the user wants to use the cold water, it is inconvenient to move the lever from the mixing section to the cold water section.

In addition, since the hot water is connected to a boiler or the like, in the case of a water faucet which is designed to discharge the mixed water from the front (center) position of the operation handle, the lever placed in the mixing section to turn on the operation handle or to use the cold water is used. In the process of moving back to the cold water section, the boiler may run for a while or hot water may be discharged unnecessarily, which may cause energy waste.

An object of the present invention, by forming the discharge section of the cold water and hot and cold mixed water to enable the step-by-step operation of the lever, so that only the cold water is discharged alone when the lever is initially operated, to prevent unnecessary waste of hot water, It is to provide an energy-saving water valve cartridge that can save energy.

The object of the present invention is a water valve cartridge, comprising: a lever operated for withdrawal of cold water, hot water, or mixed water; A fixed disk having a cold water inlet through which the cold water flows, a hot water inlet through which the hot water flows, and a mixed water outlet; A movable disk coupled to the fixed disk so as to be relatively movable, and selectively opening and closing the cold water inlet, the hot water inlet, and the mixed water outlet while being operated together when the lever is operated; A disk cover coupled to the movable disk at a lower portion, and coupled to the lever at the upper portion to transmit a rotational force of the lever to the movable disk; A sliding guide connected to the lever to guide the operation of the lever, the sliding guide being connected to the disc cover at one side; And an end operation means installed on the disc cover and the sliding guide to step-by-step the movement of the lever so that the lever is operated on in multiple stages. Is achieved.

The first stage section and the second stage section are formed by the stage operation means, only cold water is discharged in the first stage section, and mixed water may be discharged in the second stage section.

The end operation means may include: a movable shaft connected to the lever inside the sliding guide and movable together with the lever, and having one side coupled to the disk cover; A click pin coupled to the sliding guide to selectively limit the movement of the movable shaft according to the manipulation of the lever; And a shaft coupling portion formed on a surface of the upper portion of the disk cover facing the lever, to which the movable shaft is coupled.

The sliding guide may be further provided with a click pin support to form a place where the click pin is coupled.

The click pin support is formed by cutting both sides so as to induce elasticity of the click pin according to the operation of the movable shaft, the click pin can be manufactured to be relatively sharp compared to other areas in contact with the movable shaft. have.

The cold water inlet of the fixed disk is composed of a first and second cold water inlet, the movable disk has a third cold water inlet through which the cold water flows, and a mixed water inlet through which the mixed water flows into the fixed disk. Relatively coupled to each other, it is possible to selectively open and close the first and second cold water inlet, the hot water inlet and the mixed water outlet while operating together when the lever is operated.

The mixed water discharge port is circular in shape and is disposed in the central region of the fixed disk, and the second cold water inlet and the hot water inlet are arc-shaped holes and are disposed in a radially outer semicircular section of the mixed water discharge port, and the first cold water is discharged. The inlet may be formed as an arc-shaped hole by an area of the sum of the second cold water inlet and the hot water inlet at opposite sides of the second cold water inlet and the hot water inlet.

The mixed water inlet may have an ellipse shape and is disposed in the center region of the movable disk, and the third cold water inlet may have an arc-shaped hole, but may have a smaller area than the first cold water inlet.

The first and second cold water inlets of the fixed disk are formed as one hole in communication with each other, and the third cold water inlet and the mixed water inlet of the movable disk form one hole in communication with each other. can do.

According to the present invention, by allowing the stepwise operation of the lever to form the discharge section of the cold water and hot and cold mixed water, so that only cold water is discharged alone when the lever is initially operated to prevent unnecessary waste of hot water, energy There is an effect to reduce the.

1 is a side view illustrating the operation of a water valve to which an energy-saving water valve cartridge according to an embodiment of the present invention is applied;

FIG. 2 is a partial plan view of FIG. 1;

3 is a perspective view of an energy saving water valve cartridge according to an embodiment of the present invention;

4 is a longitudinal sectional view of FIG. 3;

5 and 6 are an exploded perspective view of the front and rear of Fig. 3, respectively;

7 is a rear perspective view of the sliding guide for explaining the movable shaft and the click pin area;

(A) is a side view of a sliding guide, (b) is sectional drawing along the A-A line of (a),

(A) and (b) of FIG. 9 are front and side views of the click pin, respectively;

10A and 10B are plan views of a fixed disk and a movable disk, respectively;

11 to 20 are layout views between some components of the operation of the energy saving water valve cartridge according to the first embodiment of the present invention.

21A and 21B are plan views of a fixed disk and a movable disk in the energy saving water valve cartridge according to the second embodiment of the present invention, respectively;

(A) to (c) is a relative arrangement diagram between the fixed disk and the movable disk shown in FIG. 21,

23A and 23B are plan views of a fixed disk and a movable disk, respectively, in an energy saving water valve cartridge according to a third embodiment of the present invention;

24A to 24D are relative layout views of the fixed disk and the movable disk shown in FIG.

1: Water valve 2: Handle

3: water valve body 4: water faucet

10: lever 20: fixed disk

21: first cold water inlet 22: second cold water inlet

23: hot water inlet 24: mixed water discharge port

30: movable disk 31: third cold water inlet

32: mixed water inlet 40: disc cover

41: shaft coupling portion 50: sliding guide

60: movable shaft 70: click pin

75: click pin support 76: incision

77: seat groove 80: housing

90: sheet

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

1 is a side view showing the operation of the water valve is applied to the energy-saving water valve cartridge according to an embodiment of the present invention, Figure 2 is a partial plan view of Figure 1, Figure 3 is an embodiment of the present invention Figure 4 is a perspective view of the energy-saving water valve cartridge, Figure 4 is a longitudinal cross-sectional view of Figure 3, Figures 5 and 6 are respectively exploded front and rear exploded perspective view of Figure 3, Figure 7 is a sliding shaft for explaining the click pin area Back perspective view of the guide, FIG. 8A is a side view of the sliding guide, FIG. 8B is a sectional view taken along the line AA of FIG. 9A and 9B are front views of the click pins, respectively; 10A and 10B are a plan view of a fixed disk and a movable disk, respectively, and FIGS. 11 to 20 are some parts of an operation of an energy saving water valve cartridge according to an embodiment of the present invention. The layout of the liver.

Referring to these drawings, the energy-saving water valve cartridge according to an embodiment of the present invention is mounted on the faucet 1 as shown in Figs. 1 and 2 is a module responsible for the discharge function of cold water and hot water, flow control function, etc. The component includes a lever 10, a fixed disk 20, a movable disk 30, a disk cover 40, a sliding guide 50, and stage operation means for allowing the lever 10 to be operated step by step. And, the operation means includes a movable shaft 60, click pin 70, shaft coupling portion 41 to be described later.

That is, the energy-saving water valve cartridge selects the cold water and the hot water introduced through the faucet body 3 of the faucet 1 shown in FIG. 1 by the operation of the handle 2 to receive the cold water, the hot water, or the cold / hot water mixed water. It serves to discharge to the water discharge port (4).

In the energy-saving water valve cartridge according to the present embodiment, the faucet in the first stage of operating the handle 2 of the faucet 1 to which the lever 10 is connected to the a position in the off state as shown in FIG. A discharge mode for cold water is implemented in which only cold water is discharged through the water discharge port 4.

In such a first stage, only cold water is discharged even if the handle 2 of the faucet 1 is rotated in either direction as shown in FIG. Therefore, the boiler is not operated at all in the first stage, which is enough to expect energy saving efficiency.

In the water valve cartridge according to the present embodiment, as shown in FIG. 1, when the lever 10 in the off state, that is, the handle 2 coupled to the lever 10 is operated upward, the handle 2 is primarily in the a position. When the handle 2 is disposed upward, the lever 2 is clicked while passing through the click section, and the handle is moved to the b position so that the handle can be moved to the second stage. In addition, when the handle 2 is further manipulated, the handle 2 moves to the c position to the maximum and forms a limit point of the second stage section. Therefore, as shown in FIG. 2B, it is possible to select both cold water discharge, hot water discharge, or mixed water discharge.

In the example shown in FIGS. 1 and 2, the handle 2 is illustrated as being capable of only two-stage on operations of the first stage section of the cold water discharge mode and the second stage section of the mixed water discharge mode. It may be possible to arrange more than one section.

3 to 20, each configuration of the energy saving water valve cartridge according to the first embodiment of the present invention will be described.

First, the lever 10 is engaged with the handle 2 of the faucet 1 shown in FIG. 1, and when the user manipulates the handle 2, the lever 10 is operated in the same direction as the handle 2. .

The lever 10 is an element for pulling the rotation of the movable disk to be described later for the extraction of cold water, hot water or mixed water, the upper end of the lever 10 is exposed to the outside of the housing 80 and the lower end of the sliding guide 50 It is disposed in the interior and is connected to the movable shaft (60).

The fixed disk 20 is a component that is fixed at the assembly position, the first and second

cold water inlets

21, 22 and cold water flows into the surface and are disposed at different positions, and the hot water inlet 23 into which hot water is introduced. And a mixed water discharge port 24 through which the mixed water is discharged.

The first cold water inlet 21 serves to discharge only cold water through the faucet water discharge port 4 in the cold water discharge mode in which the handle 2 of the water valve 1 is raised to the a position and disposed in the first stage. In charge of. In contrast, the second cold water inlet 22 serves to discharge cold water in the mixed water discharge mode.

For reference, since the cold water or hot water may be discharged in addition to the mixed water through the mixed water discharge port 24, it is preferable to call the water discharge port.

The mixed water discharge port 24 has a circular shape and is disposed in the center region of the fixed disk 20, and the second cold water inlet 22 and the hot water inlet 23 have an arc-shaped hole shape, and are radially outer side of the mixed water discharge port 24. It is placed in the semicircle section. On the contrary, the first cold water inlet 21 is formed as an arc-shaped hole by the sum of the area of the second cold water inlet 22 and the hot water inlet 23 on the opposite side of the second cold water inlet 22 and the hot water inlet 23. This, in turn, allows the lever 20 to rotate left and right, allowing cold water to flow in any position.

The seat 90 is coupled to the lower portion of the fixed disk 20. As shown in FIG. 3, the seat 90 is connected to the housing 80. Sheet 90 is formed with a plurality of through-holes (H) through which cold water, hot water, and mixed water come in and out. Inner packing and bottom O-rings are fitted to the upper and lower sides of the through holes H, and illustrations thereof are omitted.

The movable disk 30 is a component that is relatively movable to the fixed disk 20, unlike the fixed disk 20.

The movable disk 30 is operated together with the operation of the lever 10 to selectively open and close the first and second

cold water inlets

21 and 22, the hot water inlet 23, and the mixed water outlet 24. The movable disk 30 is provided with a third cold water inlet 31 through which cold water flows, and a mixed water inlet 32 through which mixed water flows.

The mixed water inlet 32 may be disposed in an approximately center region of the movable disk 30 as an ellipse shape. In addition, the third cold water inlet 31 may have an arc-shaped shape, but may have a smaller area than the first cold water inlet 21 of the fixed disk 20.

The disk cover 40 is a component that is coupled to the movable disk 30 and a pair of shaft coupling portions 41 are formed on the surface of the disk cover 40 facing the lever 10 to which the movable shaft 60 is coupled. . Shaft coupling portion 41 is made of a groove-shaped structure to be coupled while the rod-shaped movable shaft 60 is fitted.

The sliding guide 50 is connected to the lever 10 and serves to guide the sliding operation of the lever 10. The sliding guide 50 is connected to the disk cover 40 on one side. 5 to 7 show the lever 10 and the sliding guide 50 as a single part, these are detachable parts.

On the other hand, the operation means is composed of a movable shaft 60, the click pin 70 and the shaft coupling portion 41, the movable shaft 60 is connected to the lever 10 inside the sliding guide 50, the lever It is operated together with (10), one side is coupled to the shaft coupling portion 41 of the disk cover 40.

In addition, the click pin 70 has a cold water discharge mode (a in FIG. 1) for a single stage in which only cold water is discharged alone, and a mixed water discharge mode (b in FIG. 1) in a two stage in which mixed water is discharged. When the on (10) operation of the conventional lever (10) is coupled to the sliding guide 50 serves to primarily limit the movement of the movable shaft (60) in accordance with the operation of the lever (10).

In other words, when the lever 10 in the off state, that is, the lever 10 that is turned off so that cold water, hot water, or mixed water is not discharged at all, is moved upward by a predetermined angle, Since both ends of the movable shaft 60 are caught by the click pin 70, as a result, the movement of the lever 10 is primarily limited, thereby implementing a cold water discharge mode in which only cold water is discharged.

In the mixed water discharging mode, the lever 10 in the cold water discharging mode is moved upward and moved upward to be disposed in a two-stage section so that both ends of the movable shaft 60 pass while pressing the click pin 70, thereby allowing the lever 10 to pass. ) Is implemented by two operations on.

The click pin 70 is coupled to the sliding guide 50 in a U-shape so that both ends of the movable shaft 60 are clicked through when the movable shaft 60 moves. The click pin 70 is provided with a sharp portion 71 that is relatively sharp compared to other areas in a portion where both ends are in contact with the movable shaft 60 rounded so that the user can recognize the click operation clearly. It would be desirable.

The sliding guide 50 is provided with a click pin support 75 that forms a place where the click pin 70 is coupled so that the click pin 70 may be coupled to the sliding guide 50. Since the click pins 70 are applied in pairs, the click pin supports 75 are also provided in pairs symmetrically on both sides of the click pin support 75.

The click pin support 75 is formed with cutouts 76 in which both sides are cut to induce elasticity of the click pin 70 according to the operation of the movable shaft 60. In the center region of the click pin support 75, a seat groove 77 (see FIG. 8 (b)) forming a fitting position of the click pin 70 is provided. Since the click pin 70 is coupled to the seat groove 77, there is no separation of the click pin 70.

The operation of the water valve 1 of FIG. 1 to which the energy-saving water valve cartridge or the cartridge is coupled according to the first embodiment of the present invention having such a configuration will be described.

When the handle 2 is slightly raised and operated upward to the position a in FIG. 1, only the cold water is discharged even when the handle 2 is turned to the right or to the left in one stage, that is, in the discharge mode for cold water.

Therefore, the boiler is not running at all in this mode, which is enough to expect energy saving efficiency. In the case of such a first stage, the movable shaft 60 of the operation means does not pass through the click pin 70 and takes a stopped state on the click pin 70.

Then, the handle 2 of the faucet 1 is further operated to the b position of FIG. 1 to enter the second stage section, thereby entering the mixed water discharge mode. At this time, when the handle moves to the c position, the mixed water is discharged to the maximum.

In this two-stage section, both cold water discharge, hot water discharge, or mixed water discharge can be performed. At this time, the movable shaft 60 of the stage operation means proceeds while pressing the click pin 70 to be passed to the next two stages.

Hereinafter, referring to FIGS. 11 to 20, the arrangement relationship between the fixed disk 20 and the movable disk 30 or the movable shaft 60 in the first stage section of the cold water discharge mode or the second stage section of the mixed water discharge mode. And the arrangement of the click pin 70 will be briefly described.

FIG. 11 shows the central position when the lever 10, ie the handle 2 is in the off state. The movable disk 30 is advanced forward so that there is no water passing through the fixed disk 20, thereby achieving an off state.

FIG. 12 is a state in which only cold water flows into the cold water discharge mode while the handle 2 is placed in the first stage before clicking.

FIG. 13 is rotated to the left in the state of FIG. 12, and since only cold water is still introduced, only cold water is discharged from the faucet discharge port 4.

14 shows a mixed water discharge mode in a two-stage section in which the movable shaft 60 moves further through the click pin 70 to push the movable disk 30 backward, and in this case, the mixed water can be discharged from the central position. have.

FIG. 15 illustrates that only cold water is introduced by turning the handle 2 to the right in the second stage, and FIG. 16 illustrates an arrangement relationship between the movable disk 30 and the fixed disk 20 which are positioned while passing through the click pin 70. .

17 is a state in which the movable shaft 60 enters the second stage immediately after the click pin 70, and FIG. 18 is a state in which the movable shaft 60 is stopped by the click pin 70 and the cold water comes out to the maximum. .

FIG. 19 shows the position of the movable shaft 60 when it is in an off state before the maximum of the cold water of FIG. 18, and FIG. 20 shows the mixing of the second stage through the click pin 70 through the movable shaft 60. The state which advanced to the water discharge area | region is shown.

According to this embodiment having such a structure and operation, it is possible to improve the energy saving efficiency by allowing only cold water to be discharged alone through the stepwise operation of the lever 10.

21 (a) and 21 (b) are plan views of the fixed disk and the movable disk of the energy saving water valve cartridge according to the second embodiment of the present invention, respectively, and FIGS. 22 (a) to (c) are FIGS. The relative arrangement between the fixed disk and the movable disk shown in FIG.

In the present embodiment, unlike the above-described embodiments, the

cold water inlets

121 and 122 of the fixed disk 120 are not circular or elliptical but communicate with each other to form one hole. In the fixed disk 120, the hot water inlet 123 and the mixed water outlet 124 are disposed adjacent to the first and second

cold water inlets

121 and 122.

Similarly, the third cold water inlet 131 and the mixed water inlet 132 of the movable disk 130 also communicate with each other to form a hole.

With this configuration, when the handle 2 (see Fig. 1) is slightly lifted up and operated upward to the position a in Fig. 1 and placed in the first stage section, the handle (2, Fig. 2) is turned to the right. Only cold water is discharged either to the left or to the left. That is, only cold water is discharged even if the handle 2 (see Fig. 2) is turned to either the right or the left side as shown in (a) and (c) of Fig. 22B. Therefore, in this embodiment, as in the first embodiment, since the boiler is not operated at all in the first stage, it is sufficient to expect energy saving efficiency.

For reference, hatching shapes shown on the right side of FIGS. 2A to 2C include first and second

cold water inlets

121 and 122 of the fixed disk 120 and third cold water inlets 131 of the movable disk 130. ) Is shown schematically showing the area in which cold water is discharged.

23 (a) and (b) are plan views of the fixed disk and the movable disk of the energy saving water valve cartridge according to the third embodiment of the present invention, respectively, and FIGS. 24 (a) to (d) are FIGS. Fig. 25 is a diagram showing a relative arrangement between the fixed disk and the movable disk shown in Fig. 25. Fig. 25 is a plan view showing the first stage section and the second stage section.

Also in the present embodiment, the first and second

cold water inlets

221 and 222 of the fixed disk 220 are not circular or elliptical in shape but communicate with each other to form one hole. In the fixed disk 220, the hot water inlet 223 and the mixed water outlet 224 are disposed adjacent to the first and second

cold water inlets

221 and 222.

In addition, the third cold water inlet 231 and the mixed water inlet 232 of the movable disk 230 also communicate with each other to form a hole.

In this embodiment, the hole size of the third cold water inlet 231 formed in the movable disk 230 may be excessively wide in the central region thereof, in which case the first stage of the handle 2 (see FIG. 1). Cold water and hot water may be discharged even during operation of the section.

That is, only cold water is discharged exclusively up to the center of the first stage section. However, when the handle 2 (see FIG. 1) is turned to the left side, hot water may be discharged even though the first stage section is rotated. This may be due to the characteristics of the hole size and location of the third cold water inlet 231 formed in the movable disk 230. For example, in the closed off state as shown in FIG. 24B, the handle 2 is slightly lifted up to the position a in FIG. 1 to be disposed in the first stage, and only cold water is discharged as shown in FIG. 24C. When the handle 2 is turned all the way to the right, as shown in (a) of FIG. 24, the cold water is completely opened. However, when the handle 2 is completely turned to the left side, as shown in FIG. 24 (d), an open state of hot water is formed, and hot water may be discharged. Therefore, the cold water is discharged to the center position of the handle to increase the energy saving efficiency. Also, even if the hot water is opened, the hot water inlet 223 is not completely opened, thereby reducing the amount of hot water discharged, resulting in energy saving efficiency. To increase.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

Claims

In the water valve cartridge,

A lever operated for withdrawal of cold water, hot water or mixed water;

A fixed disk having a cold water inlet through which the cold water flows, a hot water inlet through which the hot water flows, and a mixed water outlet;

A movable disk coupled to the fixed disk so as to be relatively movable, and selectively opening and closing the cold water inlet, the hot water inlet, and the mixed water outlet while being operated together when the lever is operated;

A disk cover coupled to the movable disk at a lower portion, and coupled to the lever at the upper portion to transmit a rotational force of the lever to the movable disk; And

A sliding guide connected to the lever to guide the operation of the lever and connected to the disc cover at one side; And

It is provided in the disk cover and the sliding guide includes a stage operation means for causing the lever to be on (on) in multiple stages by restricting the movement of the lever in stages,

The end operation means,

A movable shaft connected to the lever inside the sliding guide and movable together with the lever, and having one side coupled to the disc cover;

A click pin coupled to the sliding guide to selectively limit the movement of the movable shaft according to the manipulation of the lever; And

Energy saving type water valve cartridge, characterized in that it comprises a shaft coupling portion formed on the surface of the upper side of the disk cover toward the lever coupled to the movable shaft.
The method of claim 1,

The first stage section and the second stage section are formed by the stage operation means, only cold water is discharged in the first stage section, the energy-saving water valve cartridge, characterized in that the mixed water is discharged in the second stage section.
The method of claim 1,

Energy saving type water valve cartridge, characterized in that the sliding guide is further provided with a click pin support to form a place where the click pin is coupled.
The method of claim 3,

The click pin support is formed by cutting both sides to induce elasticity of the click pin according to the operation of the movable shaft,

The click pin is an energy-saving water valve cartridge, characterized in that the portion in contact with the movable shaft is made relatively sharp compared to other areas.
The method of claim 1,

The cold water inlet of the fixed disk consists of first and second cold water inlet,

The movable disk includes a third cold water inlet through which the cold water flows in, a mixed water inlet through which the mixed water flows, and is coupled to the fixed disk so as to be movable relative to each other. Energy saving water valve cartridge, characterized in that for selectively opening and closing the second cold water inlet, the hot water inlet and the mixed water outlet.
The method of claim 5,

The mixed water discharge port is circular in shape and is disposed in the central region of the fixed disk, and the second cold water inlet and the hot water inlet are arc-shaped in the radially outer semicircle section of the mixed water discharge port.

The first cold water inlet is an energy-saving water valve cartridge, characterized in that the arc-hole is formed by the area of the second cold water inlet and the hot water inlet as the sum of the second cold water inlet and the hot water inlet.
The method of claim 5,

The mixed water inlet is elliptical shape is disposed in the central region of the movable disk,

The third cold water inlet has an arc-shaped long hole but forms an area smaller than that of the first cold water inlet.
The method of claim 5,

The first and second cold water inlets of the fixed disk are formed as one hole in communication with each other,

Energy saving type water valve cartridge, characterized in that the third cold water inlet and the mixed water inlet of the movable disk to form a hole in communication with each other.
The method of claim 1,

The first stage section and the second stage section are formed by the stage operation means, cold water is discharged only when the handle of the faucet is in the center position range from one side, and the mixed water is discharged in the second stage section. An energy-saving water valve cartridge.