Shunt valve element and constant-temperature faucet applying shunt valve element

Abstract

The utility model discloses a shunt valve core, and discloses a thermostatic faucet with the shunt valve core, the shunt valve core is characterized in that a water inlet, a first water outlet, a first backflow port and at least two first shunt ports are arranged on a shell; the first valve plate is fixed in the shell, and the first valve plate is provided with a second water outlet communicated with the first water outlet, a second backflow port communicated with the first backflow port and at least two second water distribution ports communicated with the first water distribution ports in a one-to-one matching manner; the second valve plate is rotatably mounted in the shell, the second valve plate can rotate to a first position range and a second position range relative to the first valve plate, and a water passing cavity and a third water outlet are formed in the second valve plate; on the basis that the water outlet mode function is selected, the water dividing valve element further plays a role in cutting off water, and water channeling of two paths of water of water equipment through the water dividing valve element can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to a valve component, in particular to a water-dividing valve core and a thermostatic faucet using the same. Background Art

[0002] At present, thermostatic faucets are widely used. They have improved people's living standards and enabled people to have a more comfortable shower experience. Thermostatic faucets usually have the function of outputting cold water, hot water and mixed water. When the mixed water is turned off, the cold water and hot water are still on, so there will be a certain amount of water stored inside the faucet. A one-way valve needs to be added to prevent the problem of cold and hot water from leaking out. When in standby mode, the thermostatic valve core will also bear the water pressure of cold and hot water for a long time, which will affect the life of the thermostatic valve core. Utility Model Content

[0003] The utility model aims to solve one of the above-mentioned technical problems in the related art at least to a certain extent. To this end, the utility model provides a water diversion valve core.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] The utility model also provides a thermostatic faucet with the water diversion valve core.

[0006] According to the first aspect of the present invention, the water diversion valve core includes:

[0007] A shell, wherein the shell is provided with a water inlet, a first water outlet, a first return outlet and at least two first water outlets;

[0008] a first valve plate, the first valve plate being fixed in the housing, the first valve plate being provided with a second water outlet communicating with the first water outlet, a second return port communicating with the first return port, and at least two second water outlets communicating with the first water outlets in a one-to-one matching manner;

[0009] The second valve plate is rotatably mounted in the housing, and the second valve plate can rotate relative to the first valve plate to a first position range and a second position range, and a water passage cavity and a third water outlet are provided on the second valve plate; wherein,

[0010] When the second valve plate rotates to the first position range, the third water outlet is disconnected from the second water outlet to isolate the water inlet and the second water outlet, and the water passage cavity is disconnected from each of the second water outlets;

[0011] When the second valve plate rotates to the second position range, the water inlet is connected to the second water outlet through the third water outlet, and the second return port is connected to each of the second water outlets in turn through the water passage cavity.

[0012] The water-dividing valve core according to the embodiment of the utility model has at least the following beneficial effects: the water-dividing valve core not only has the function of selecting the water outlet mode, but also plays the role of shutting off the water, which can effectively prevent the two-way water of the water-using equipment from leaking through the water-dividing valve core.

[0013] According to some embodiments of the utility model, the first return port is arranged at the center of one end of the shell, and the first water outlet and each of the first water diversion ports are arranged in sequence around the first return port; the second return port is arranged at the center of the first valve plate, and each of the second water diversion ports is arranged in sequence around the second return port, and the second water outlet is arranged in a circular arc shape around the second return port; the water passage chamber is recessed from one side of the second valve plate to the other opposite side, and the water passage chamber extends radially from the center of the second valve plate.

[0014] According to some embodiments of the utility model, the second water outlet includes a first water trough and a second water trough, the first water trough faces the second valve plate, the second water trough faces and is connected with the first water outlet, the first water trough and the second water trough both extend in a circular arc shape around the center of the first valve plate, the arc length of the first water trough is greater than the arc length of the second water trough, the second water trough is connected with the second water trough along the thickness direction of the first valve plate, and when the second valve plate rotates relative to the first valve plate, the third water outlet can be opposite to or offset from the second water trough.

[0015] According to some embodiments of the present utility model, the third water outlet is provided on the circumferential side wall of the second valve plate, the second water outlets are arranged on a first virtual circumference around the second return port, the second water outlets are arranged on a second virtual circumference around the second return port, and the diameter of the second virtual circumference is greater than the diameter of the first virtual circumference;

[0016] A first water stop zone is formed between two adjacent second water diversion ports at intervals on the first virtual circumference, and a second water stop zone is formed at two ends of the first water tank at positions on the second virtual circumference where the two ends are not connected.

[0017] When the second valve plate rotates to the first position, the water passage cavity is aligned with the first water stop area, and the third water outlet is aligned with the second water stop area.

[0018] According to some embodiments of the present invention, both the first valve plate and the second valve plate are ceramic bodies, and the first valve plate and the second valve plate are in contact with each other.

[0019] According to some embodiments of the utility model, the outer shell includes a cylinder and a cover, the cylinder has an inner cavity, the cover is installed on a port of the cylinder, the water inlet is opened on the side wall of the cylinder, the first water outlet, the first return port and the first water diversion port are arranged on the cover, the first valve plate and the second valve plate are located in the inner cavity of the cylinder, the space between the second valve plate and the water inlet defines a water inlet cavity, and the water inlet cavity connects the water inlet and the third water outlet.

[0020] According to some embodiments of the utility model, it also includes a linkage plate and a valve stem, wherein the linkage plate is placed in the inner cavity of the cylinder and connected to the second valve plate, one end of the valve stem extends into the cylinder and is connected to the linkage plate, the valve stem can drive the linkage plate and the second valve plate to rotate synchronously, and the linkage plate has a force on the second valve plate to push it toward the first valve plate.

[0021] According to some embodiments of the present utility model, a clamping groove is provided on the peripheral wall of the first valve plate, and a clamping column is provided on the cover portion, and the clamping column is clamped in the clamping groove.

[0022] The thermostatic faucet according to the second aspect of the present utility model comprises a main body, a thermostatic valve core and a water diversion valve core, the main body is provided with a first joint, a second joint, a cold water channel, a reflux channel and at least two water diversion channels, the thermostatic valve core and the water diversion valve core are installed on the main body, the first joint is communicated with the water inlet, the second joint is communicated with the hot water end of the thermostatic valve core, the cold water channel is connected between the first water outlet and the cold water end of the thermostatic valve core, the reflux channel is connected between the first reflux port and the water outlet end of the thermostatic valve core, and each of the water diversion channels is connected to each of the first water diversion ports in a one-to-one pairing.

[0023] The thermostatic faucet according to the embodiment of the utility model has at least the following beneficial effects: the water-dividing valve core can directly block the hot water from the second interface from flowing to the first interface through the thermostatic valve core and the cold water channel, and there is no need to install a one-way valve at the first interface and the second interface, which effectively prevents the problem of hot and cold water flowing into each other during standby mode, and at the same time avoids the thermostatic valve core from being affected by the cold water pressure during standby mode; the water-dividing valve directly plays the function of shutting off the water and selecting different water-dividing channels for water outlet.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 It is a structural schematic diagram of the water diversion valve core;

[0027] Figure 2 yes Figure 1 Schematic diagram of structural decomposition;

[0028] Figure 3 yes Figure 2 Schematic diagram from another perspective;

[0029] Figure 4 is a schematic structural diagram of a side of the first raft plate facing the second raft plate;

[0030] Figure 5 yes Figure 4 A top view of

[0031] Figure 6 It is a structural diagram of a thermostatic faucet;

[0032] Figure 7 yes Figure 6 Schematic diagram of the internal structure;

[0033] Figure 8 It is the right view of the subject.

[0034] Reference numerals: water diversion valve core 001; housing 100; water inlet 101; first water outlet 102; first return port 103; first water diversion port 104; cylinder 110; inner cavity 111; cover 120; clamping column 121; water inlet cavity 130; first valve plate 200; second water outlet 201; second return port 202; second water diversion port 203; first virtual circumference 204; second virtual circumference 205; first water stop Area 206; second water stop area 207 alignment; slot 208; first water trough 211; second water trough 212; second valve plate 300; water passage chamber 301; third water outlet 302; linkage plate 400; valve stem 410; main body 500; first joint 510; second joint 520; cold water channel 530; reflux channel 540; water diversion channel 550; thermostatic valve core 600; hot water end 610; cold water end 620. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0036] The utility model relates to a water-dividing valve core 001, comprising a housing 100, a first valve plate 200 and a second valve plate 300.

[0037] like Figure 1 , Figure 2 and Figure 3As shown, the housing 100 can be set to a cylindrical shape, and the first valve plate 200 and the second valve plate 300 are installed inside the housing 100. The housing 100 is provided with a water inlet 101, a first water outlet 102, a first return port 103 and at least two first water diversion ports 104. Among them, the setting positions and sizes of the water inlet 101, the first water outlet 102, the first return port 103 and the first water diversion port 104 are not limited. The water inlet 101 can be set on the side wall of the housing 100, and the first water outlet 102, the first return port 103 and the first water diversion port 104 are set at the end of the housing 100. In this embodiment, the housing 100 includes a barrel 110 and a cover 120. The barrel 110 is cylindrical, and the interior of the barrel 110 is hollow to form an inner cavity 111. One end of the barrel 110 is open, and the cover 120 covers the open end of the barrel 110. The water inlet 101 is provided on the side wall of the barrel 110. The first water outlet 102, the first return port 103 and the first water diversion port 104 are provided on the cover 120. The first valve plate 200 and the second valve plate 300 are located in the inner cavity 111 of the barrel 110. The first valve plate 200 is closer to the cover 120 than the second valve plate 300. The first valve plate 200 is fixedly installed relative to the housing 100, and the second valve plate 300 is rotatable relative to the housing 100. The first valve plate 200 is provided with a second water outlet 201, a second return port 202 and at least two second water diversion ports 203. The second water outlet 201, the second return port 202 and the at least two second water diversion ports 203 penetrate the first valve plate 200 along the thickness direction of the first valve plate 200. The first valve plate 200 can be arranged to be fitted and fixed on the cover 120, and the two can be sealed and connected by a sealing ring. The first water outlet 102 and the second water outlet 201 are positioned relative to each other and are interconnected. The first return port 103 and the second return port 202 are positioned relative to each other and are interconnected. The number of the first water diversion ports 104 and the second water diversion ports 203 is the same, and each first water diversion port 104 and each second water diversion port 203 are aligned and connected one by one. The first valve plate 200 and the second valve plate 300 can be disc-shaped, and the first valve plate 200 and the second valve plate 300 are made of ceramic bodies, and the second valve plate 300 is attached to the first valve plate 200. The second valve plate 300 can rotate relative to the first valve plate 200. The second valve plate 300 is provided with a water passage chamber 301 and a third water outlet 302. The water passage chamber 301 is opened on the plate surface of the second valve plate 300 facing the first valve plate 200. The water passage chamber 301 can be configured such that when the first valve plate 200 rotates, a portion of the water passage chamber 301 remains connected to the second return port 202 , and another portion of the water passage chamber 301 rotates with the first valve plate 200 and passes through each second water diversion port 203 .When the first valve plate 200 and the second valve plate 300 are installed in the inner cavity 111 of the barrel 110, the first valve plate 200 and the second valve plate 300 are located at the position where the water inlet 101 and the cover 120 are connected, and the first valve plate 200 covers the first water outlet 102, the first return port 103 and the first water diversion port 104 on the cover 120. The third water outlet 302 penetrates the second valve plate 300 along the thickness direction of the second valve plate 300. The third water outlet 302 can be set on the peripheral wall of the second valve plate 300 or at other positions of the second valve plate 300. It is only necessary to ensure that when the second valve plate 300 rotates relative to the first valve plate 200, the rotation path of the third water outlet 302 passes through the second water outlet 201. The space between the second valve plate 300 and the water inlet 101 in the inner cavity 111 is defined as the water inlet cavity 130. When the second valve plate 300 rotates relative to the first valve plate 200, it has a first position range and a second position range. When the second valve plate 300 rotates to the first position range, the third water outlet 302 and the second water outlet 201 are dislocated and not connected to each other, that is, the second valve plate 300 blocks the second water outlet 201, and the second water outlet 201 is not connected to the water inlet chamber 130 and the water inlet 101. The range in which the third water outlet 302 and the second water outlet 201 are dislocated from each other when the second valve plate 300 rotates is the first position range. At this time, the water passage chamber 301 and each second water diversion port 203 are dislocated and not connected to each other. When the second valve plate 300 is in the first position range, it is the shut-off state of the water diversion valve core. When the second valve plate 300 rotates to the second position range, the third water outlet and the second water outlet 201 are relative and connected to each other, and the water passage chamber 301 rotates with the second valve plate 300 and is connected to each second water diversion port 203 in turn, that is, the second reflux port 202 can be connected to each second water diversion port 203 in turn through the water passage chamber 301. The second reflux port 202 is connected to the second water outlet 203 which is currently aligned with the water outlet 301 through the water passage cavity 301. When the second valve plate 300 is in the second position range, it is the working state of the water outlet valve core. When the second valve plate 300 rotates, the range in which the third water outlet 302 and the second water outlet 201 remain connected is the second position range.

[0038] In actual use, the water diversion valve core is installed on a water-using device for use. In this embodiment, the water diversion valve core is used on a thermostatic faucet. Figure 6 , Figure 7 and Figure 8As shown, the thermostatic faucet also includes a main body 500 and a thermostatic valve core 600. The main body 500 is provided with a first joint 510, a second joint 520, a cold water channel 530, a reflux channel 540 and at least two water diversion channels 550. The water diversion valve core and the thermostatic valve core 600 are installed at both ends of the main body 500. After the water diversion valve core and the thermostatic valve core 600 are installed, the first joint 510 is directly connected to the water inlet 101 of the water diversion valve core. The first water outlet 102 of the water diversion valve core is connected to one end of the cold water channel 530, and the first reflux port 103 of the water diversion valve core is connected to one end of the reflux channel 540. In this embodiment, the main body 500 is provided with three water diversion channels 550, and correspondingly, the water diversion valve core is provided with three first water diversion ports 104 and second water diversion ports 203. One end of each water diversion channel 550 is matched with each first water diversion port 104, and the other end of each water diversion channel 550 is led out to the outer wall of the main body 500 to form three water outlet joints. The thermostatic valve core 600 has two water inlet ports, one is the hot water end 610 directly connected to the second joint 520, and the other is the cold water end 620 connected to the other end of the cold water channel 530. The hot water end 610 and the cold water end 620 are connected to the mixing water chamber inside the thermostatic valve core 600, and the water outlet end of the mixing water chamber is connected to the other end of the reflux channel 540. When in use, the first joint 510 is connected to the cold water pipe (such as tap water) of the external water supply system, and the second joint 520 is connected to the pipeline of the hot water supply system. When the thermostatic faucet is on standby, the second valve plate 300 of the water diversion valve core rotates to the first position range and is in the off state, and the external cold water cannot enter the cold water channel 530, and the external cold water will not supply water to the thermostatic valve. When using water, the second valve plate 300 is rotated to the second position range. Cold water enters the water inlet chamber 130 of the water diversion valve core from the first interface and the water inlet 101, and then flows through the third water outlet 302, the second water outlet 201, and the first water outlet 102 to enter the cold water channel 530. Hot water from the hot water supply system enters the thermostatic valve through the second interface and the hot water end 610 of the thermostatic valve, and cold water in the cold water channel 530 enters the thermostatic valve from the cold water end 620 of the thermostatic valve. Cold and hot water are discharged from the water outlet of the thermostatic valve into the reflux channel 540 to mix and form warm water. The warm water flows along the reflux channel 540, the first reflux port 103, the second reflux port 202, the water passage chamber 301, the second water diversion port 203 currently aligned with the water passage chamber 301, the first water diversion port 104, the water diversion channel 550 connected with the first water diversion port 104, and finally is discharged from the tail end of the water diversion channel 550 for use by the user. The second valve plate 300 can be rotated to switch the warm water to different water diversion channels 550 for discharge and use.

[0039] When in standby mode, the water-dividing valve core can directly block the cold water at the first interface from entering the cold water channel 530 and the thermostatic valve core 600 to flow to the second interface, that is, the hot water at the second interface is blocked from flowing to the first interface through the thermostatic valve core 600 and the cold water channel 530. There is no need to install a one-way valve at the first interface and the second interface. The water-dividing valve core can effectively prevent the problem of cold and hot water from flowing into each other during standby mode, and at the same time prevent the thermostatic valve core 600 from being affected by the cold water pressure during standby mode. The water-dividing valve directly plays the role of shutting off the water and selecting different water-dividing channels 550 for water outlet.

[0040] In some specific embodiments of the present invention, Figure 1 and Figure 2 As shown, the first return port 103 is arranged at the center of one end of the housing 100, that is, the first return port 103 is opened at the center of the cover 120. The first water outlet 102 and the first water diversion ports 104 are arranged in sequence around the first return port 103. The second return port 202 is arranged at the center of the first valve plate 200, and the second water diversion ports 203 are arranged in sequence around the second return port 202. Figure 2 , Figure 4 and Figure 5 As shown, the second water outlet 201 is arranged in an arc shape around the second return port 202. The two axial end faces of the second valve plate 300 are flat end faces, and the water passage chamber 301 is recessed in a groove shape from one flat end face of the second valve plate 300 to the other flat end face. The water passage chamber 301 extends radially from the center of the end face of the second valve plate 300. That is, the first return port 103, the second return port 202 and a part of the water passage chamber 301 are in a coaxial position and remain connected. The arc-shaped extension of the second water outlet 201 enables the third water outlet 302 to remain in alignment and communication with the second water outlet 201 when the second valve plate 300 rotates within the second position range.

[0041] In some specific embodiments of the present invention, Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the second water outlet 201 includes a first water trough 211 and a second water trough 212, and the first water trough 211 and the second water trough 212 are respectively located on the flat end surfaces on both sides of the second valve plate 300. The first water trough 211 faces the second valve plate 300, and the second water trough 212 faces and is connected to the first water outlet 102. The first water trough 211 and the second water trough 212 both extend in an arc shape around the center of the first valve plate 200. The arc length of the first water trough 211 is greater than the arc length of the second water trough 212. The second water trough 212 is connected to the second water trough 212 along the thickness direction (axial direction) of the first valve plate 200. When the second valve plate 300 rotates relative to the first valve plate 200, the third water outlet 302 can be opposite to or offset from the second water trough 212. The arc length of the second water trough 212 is set accordingly according to the opening size of the first water outlet 102 on the first valve plate 200. The arc length range of the first water trough 211 is the second position range when the second valve plate 300 rotates. The arc of the first water trough 211 can cover the distribution angles of each second water outlet 203, ensuring that there is a large movable alignment range between the third water outlet 302 and the first water trough 211 so that the water passage chamber 301 can rotate and align and connect multiple second water outlets 203.

[0042] Further, each second water diversion port 203 is arranged around the second return port 202 at a position on the first virtual circumference 204. The second water outlet 201 is arranged around the second return port 202 at a position on the second virtual circumference 205, and the diameter of the second virtual circumference 205 is greater than the diameter of the first virtual circumference 204. That is, each second water diversion port 203 is closer to the second return port 202 than the second water outlet 201. The third water outlet 302 is provided on the peripheral wall of the second valve plate 300. A first water stop zone 206 is formed between two adjacent second water diversion ports 203 at a position spaced apart on the first virtual circumference 204. The two ends of the first water tank 211 form a second water stop zone 207 at a position on the second virtual circumference 205 where they are not connected. When the second valve plate 300 rotates to the first position, the water passage chamber 301 is aligned with the first water stop zone 206, and a part of the cavity of the water passage chamber 301 is blocked by the first water stop zone 206. The third water outlet 302 is aligned with the second water stop area 207 , and the third water outlet 302 is separated from the second water outlet 201 by the second water stop area 207 .

[0043] In some specific embodiments of the present invention, Figure 1 and Figure 2As shown, it also includes a linkage plate 400 and a valve stem 410. The linkage plate 400 is placed in the inner cavity 111 of the barrel 110 and connected to the second valve plate 300. The linkage plate 400 and the second valve plate 300 can be connected by a snap-on method. One end of the valve stem 410 extends into the barrel 110 and is connected to the linkage plate 400, and the other end of the valve stem 410 is located outside the barrel 110. By rotating the valve stem 410, the valve stem 410 can drive the linkage plate 400 and the second valve plate 300 to rotate synchronously, thereby controlling the rotation of the second valve plate 300. The linkage plate 400 has a force on the second valve plate 300 to push it toward the first valve plate 200. It can be that a spring is arranged between the linkage plate 400 and the inner wall of the barrel, and the spring applies an elastic force to the linkage plate 400 to push the linkage plate 400 toward the second valve plate 300, thereby making the second valve plate 300, the first valve plate 200 and the cover body closely fit in sequence. A clamping groove 208 is provided on the peripheral wall of the first valve plate 200, and a clamping column 121 is provided on the cover 120. The clamping column 121 is clamped in the clamping groove 208 to limit the rotation of the first valve plate 200. The cover 120 can be fixed on the end of the cylinder 110 by clamping the cover 120. The axial movement of the first valve plate 200 and the second valve plate 300 is limited under the cooperation of the cover 120 and the linkage plate 400.

[0044] In the description of this specification, the description of reference terms such as "some specific embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A water diversion valve core, characterized in that: include: A housing (100), wherein the housing (100) is provided with a water inlet (101), a first water outlet (102), a first return outlet (103), and at least two first water outlets (104); a first valve plate (200), the first valve plate (200) being fixed in the housing (100), the first valve plate (200) being provided with a second water outlet (201) communicating with the first water outlet (102), a second return port (202) communicating with the first return port (103), and at least two second water outlets (203) communicating with the first water outlets (104) in a one-to-one matching manner; a second valve plate (300), the second valve plate (300) being rotatably mounted in the housing (100), the second valve plate (300) being capable of rotating relative to the first valve plate (200) to a first position range and a second position range, the second valve plate (300) being provided with a water passage cavity (301) and a third water outlet (302); wherein: When the second valve plate (300) rotates to the first position range, the third water outlet (302) is disconnected from the second water outlet (201) to isolate the water inlet (101) and the second water outlet (201), and the water passage cavity (301) is disconnected from each of the second water outlets (203); When the second valve plate (300) rotates to the second position range, the water inlet (101) is connected to the second water outlet (201) through the third water outlet (302), and the second return port (202) is connected to each of the second water outlets (203) in turn through the water passage cavity (301).

2. The water diversion valve core according to claim 1, characterized in that: The first return port (103) is arranged at the center of one end of the housing (100), and the first water outlet (102) and each of the first water diversion ports (104) are arranged in sequence around the first return port (103); the second return port (202) is arranged at the center of the first valve plate (200), and each of the second water diversion ports (203) are arranged in sequence around the second return port (202), and the second water outlet (201) is arranged in an arc shape around the second return port (202); the water passage cavity (301) is formed by being recessed from one side of the second valve plate (300) to the other opposite side, and the water passage cavity (301) extends radially from the center of the second valve plate (300).

3. The water diversion valve core according to claim 2, characterized in that: The second water outlet (201) comprises a first water trough (211) and a second water trough (212); the first water trough (211) faces the second valve plate (300); the second water trough (212) faces and is connected to the first water outlet (102); the first water trough (211) and the second water trough (212) both extend in an arc shape around the center of the first valve plate (200); the arc length of the first water trough (211) is greater than the arc length of the second water trough (212); the second water trough (212) is connected to the second water trough (212) along the thickness direction of the first valve plate (200); when the second valve plate (300) rotates relative to the first valve plate (200), the third water outlet (302) can be opposite to or offset from the second water trough (212).

4. The water diversion valve core according to claim 3, characterized in that: The third water outlet (302) is provided on the circumferential side wall of the second valve plate (300); the second water outlets (203) are arranged around the second return port (202) on a first virtual circumference (204); the second water outlets (201) are arranged around the second return port (202) on a second virtual circumference (205); and the diameter of the second virtual circumference (205) is greater than the diameter of the first virtual circumference (204); A first water stop zone (206) is formed at a position where two adjacent second water diversion ports (203) are spaced apart on the first virtual circumference (204), and a second water stop zone (207) is formed at positions where the two ends of the first water tank (211) are not connected on the second virtual circumference (205); When the second valve plate (300) rotates to the first position, the water passage chamber (301) is aligned with the first water stop area (206), and the third water outlet (302) is aligned with the second water stop area (207).

5. The water diversion valve core according to claim 1, characterized in that: The first valve plate (200) and the second valve plate (300) are both ceramic bodies, and the first valve plate (200) and the second valve plate (300) are bonded to each other.

6. The water diversion valve core according to any one of claims 1 to 4, characterized in that: The housing (100) comprises a barrel (110) and a cover (120); the barrel (110) has an inner cavity (111); the cover (120) is mounted on a port of the barrel (110); the water inlet (101) is provided on a side wall of the barrel (110); the first water outlet (102), the first return port (103) and the first water diversion port (104) are arranged on the cover (120); the first valve plate (200) and the second valve plate (300) are located in the inner cavity (111) of the barrel (110); the space between the second valve plate (300) and the water inlet (101) defines a water inlet cavity (130); the water inlet cavity (130) connects the water inlet (101) and the third water outlet (302).

7. The water diversion valve core according to claim 6, characterized in that: It also includes a linkage plate (400) and a valve stem (410), wherein the linkage plate (400) is disposed in the inner cavity (111) of the barrel (110) and is connected to the second valve plate (300), one end of the valve stem (410) extends into the barrel (110) and is connected to the linkage plate (400), the valve stem (410) can drive the linkage plate (400) and the second valve plate (300) to rotate synchronously, and the linkage plate (400) has a force on the second valve plate (300) to push it toward the first valve plate (200).

8. The water diversion valve core according to claim 7, characterized in that: A clamping groove (208) is provided on the peripheral wall of the first valve plate (200), and a clamping column (121) is provided on the cover portion (120), and the clamping column (121) is clamped in the clamping groove (208).

9. A thermostatic faucet, characterized in that: The invention comprises a main body (500), a thermostatic valve core (600) and a water diversion valve core according to any one of claims 1 to 8, wherein the main body (500) is provided with a first joint (510), a second joint (520), a cold water channel (530), a reflux channel (540) and at least two water diversion channels (550), the thermostatic valve core (600) and the water diversion valve core are mounted on the main body (500), the first joint (510) is communicated with the water inlet (101), The second joint (520) is in communication with the hot water end (610) of the thermostatic valve core (600); the cold water channel (530) is connected between the first water outlet (102) and the cold water end (620) of the thermostatic valve core (600); the reflux channel (540) is connected between the first reflux port (103) and the water outlet end of the thermostatic valve core (600); and each of the water diversion channels (550) is in communication with each of the first water diversion ports (104) in a one-to-one manner.

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