A one-in-three-out waterway switching valve

Abstract

The utility model discloses a kind of one-in three-out water path switching valve, fluid control equipment, the one-in three-out water path switching valve includes passage assembly and closure assembly, passage assembly includes the flow-through valve body with two flow-through chambers in inside, the total water inlet channel and three water outlet channels of flow-through valve body front end surface are equipped with horizontal protruding in flow-through valve body, water outlet channel includes normally open water outlet channel, first water outlet channel, and second water outlet channel, the top of flow-through valve body rear end surface is equipped with arrangement water flow-through channel;Closure assembly includes two switching channels, wherein the middle part of each switching channel is communicated with normally open water outlet channel, and the middle part of another switching channel is communicated with one end of water flow-through channel, retractable plug post that can be longitudinally displaced is equipped in switching channel, the plugging end of retractable plug post is located in the flow-through chamber of flow-through valve body, the present application can realize dynamic adjustment, reduce leakage risk, simplify the complex pipeline system of traditional multi-valve combination, reduce the number of parts, reduce production cost and assembly difficulty.

Description

Technical Field

[0001] This utility model relates to the field of fluid control equipment, specifically to a one-inlet, three-outlet water circuit switching valve. Background Technology

[0002] To achieve refined functionality, maximized washing efficiency, and system safety redundancy, washing machines are equipped with multiple flow channels inside. These include the main wash water channel, which injects a large amount of water into the washing tub; the rinse / softener water channel, which injects fabric softener during rinsing; the anti-overflow water channel, which automatically drains water when the water level is too high; and the emergency drain water channel. Some models also include a high-temperature washing water channel and a self-cleaning water channel. To ensure normal water supply, a switching valve is often used to switch water channels. In actual use, the switching valve has multiple channels inside, requiring independent sealing methods. Over time, the sealing performance of each channel decreases, making it easy for water to seep into the inner cavity. Furthermore, the inner cavity of products on the market uses metal hollow tubes and injection molding, combining multiple materials, which not only makes the structure complex and difficult to control the process, but also makes it impossible to guarantee product quality. Utility Model Content

[0003] This application provides a one-inlet, three-outlet water circuit switching valve, which can solve the technical problems existing in the prior art. In order to ensure normal water supply function, multiple channels are formed in the valve body, which requires independent sealing methods. After long-term use, the sealing performance of each channel decreases, and the metal hollow pipe and injection molding process also make process control difficult.

[0004] This application provides a one-inlet, three-outlet water circuit switching valve, including:

[0005] The channel assembly includes a flow valve body with two flow chambers inside. The front end face of the flow valve body is provided with a main water inlet channel and three water outlet channels that are horizontally protruding from the flow valve body. The water outlet channels include a normally open water outlet channel located on one side of the main water inlet channel, a first water outlet channel located below the normally open water outlet channel, and a second water outlet channel located below the main water inlet channel. The main water inlet channel and the second water outlet channel are located in one of the flow chambers, and the normally open water outlet channel and the first water outlet channel are located in the other flow chamber. The top of the rear end face of the flow valve body is provided with a horizontally arranged water flow channel.

[0006] A closing assembly includes two longitudinally arranged switching channels, each with its bottom end entering a flow chamber. The middle portion of one switching channel is connected to the normally open water outlet channel, and the middle portion of the other switching channel is connected to one end of the water flow channel. The other end of the water flow channel is connected to the flow chamber corresponding to the normally open water outlet channel. A telescopic plug that can be longitudinally displaced is provided in the switching channel. The blocking end of the telescopic plug is located in the flow chamber of the flow valve body, with the blocking end of one telescopic plug facing the inlet end of the first water outlet channel and the blocking end of the other telescopic plug facing the inlet end of the second water outlet channel.

[0007] In one embodiment, the two flow chambers include a first chamber corresponding to the normally open water outlet channel and the first water outlet channel, and a second chamber corresponding to the main water inlet channel and the second water outlet channel, wherein the bottom end of one switching channel is located in the first chamber and the bottom end of the other switching channel is located in the second chamber.

[0008] In one embodiment, the flow valve body has a support frame at the top and a control valve located at the bottom of the support frame for controlling the extension and retraction of the telescopic plunger.

[0009] In one embodiment, the control valve includes a fixed stationary iron core and a coil located on the outer periphery of the stationary iron core, the coil being provided with a connector.

[0010] In one embodiment, a retaining spring is provided at one end of the stationary iron core facing the flow valve body, and the end of the retaining spring facing the flow valve body is fixedly connected to the top of the telescopic plug.

[0011] In one embodiment, the bottom end of the switching channel is located inside the flow chamber of the flow valve body, and the top end extends out of the flow valve body, with the control valve located at the top of the switching channel.

[0012] In one embodiment, the end of the switching channel extending into the flow chamber of the flow valve body has an opening, and the inner diameter of the opening is larger than the outer diameter of the telescopic plug.

[0013] In one embodiment, the bottom ends of the two telescopic plungers pass through the openings of the corresponding switching channels to correspond to the first water outlet channel and the second water outlet channel, respectively, and the bottom ends of the telescopic plungers are provided with plugs.

[0014] In one embodiment, the flow valve body includes an upper valve body and a lower valve body, the first cavity and the second cavity are formed in the upper valve body, and the first water outlet channel and the second water outlet channel are formed in the lower valve body.

[0015] In one embodiment, a sealing gasket is provided at the connection between the upper valve body and the lower valve body.

[0016] The beneficial effects of the technical solutions provided in this application include:

[0017] The dual-flow chamber isolation design creates independent flow channels between the main inlet channel and each outlet channel, avoiding sealing failure and water leakage problems caused by long-term use of traditional multi-channel valves. The dynamic sealing structure of the telescopic plug ensures long-term stable sealing performance during frequent switching, reducing the risk of leakage. It simplifies the complex piping system of traditional multi-valve combinations, reduces the number of parts, lowers production costs and assembly difficulty, and the modular design facilitates fault diagnosis and maintenance, reducing after-sales maintenance costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This application provides a schematic diagram of a one-inlet, three-outlet water circuit switching valve structure;

[0020] Figure 2 A cross-sectional top view of the flow valve body of a one-inlet, three-outlet water circuit switching valve provided in this application;

[0021] Figure 3 A longitudinal front view of a one-inlet, three-outlet water circuit switching valve provided in this application;

[0022] Figure 4 This application provides a schematic diagram of the normally open outlet channel connection state of a one-inlet, three-outlet water switching valve;

[0023] Figure 5 A schematic diagram of the first outlet channel connection state of a one-inlet, three-outlet water circuit switching valve provided in this application;

[0024] Figure 6 This application provides a schematic diagram of the connection state of the second outlet channel of a one-inlet, three-outlet water switching valve;

[0025] Figure 7 An exploded view of a one-inlet, three-outlet water circuit switching valve provided in this application.

[0026] In the diagram: 1. Flow valve body; 101. First chamber; 102. Second chamber; 103. Upper valve body; 104. Lower valve body; 105. Sealing gasket; 2. Main water inlet channel; 3. Normally open water outlet channel; 4. First water outlet channel; 5. Second water outlet channel; 6. Water flow channel; 7. Switching channel; 701. First channel; 702. Second channel; 8. Telescopic plunger; 801. Plug head; 9. Support frame; 10. Control valve; 1001. Static iron core; 1002. Coil; 1003. Support spring. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0028] This application provides a one-inlet, three-outlet water circuit switching valve, which can solve the technical problems existing in the prior art. In order to ensure normal water supply function, multiple channels are formed in the valve body, which requires independent sealing methods. After long-term use, the sealing performance of each channel decreases, and the metal hollow pipe and injection molding process also make process control difficult.

[0029] The one-inlet, three-outlet water circuit switching valve of this application includes a channel assembly and a closing assembly. The channel assembly can form multiple internal flow channels within the valve body, including one inlet and three outlets, to accommodate the various functional channels of the washing machine. The closing assembly is also formed within the valve body and has a certain degree of telescopic performance. It achieves precise reciprocating motion through a preset mechanical drive mechanism to realize dynamic channel switching. In the working state, the closing assembly can adjust its position according to the control command and move to the opening of different flow channels through its end, thereby achieving selective opening and closing of different flow channels and accurately controlling the connection status between the main water inlet and any designated water outlet.

[0030] Specifically, Figure 1 This is a schematic diagram of a one-inlet, three-outlet water circuit switching valve provided in this application. Figure 2 A cross-sectional top view of the flow valve body 1 in a one-inlet, three-outlet water circuit switching valve provided in this application is shown below. Figure 1 , Figure 2As shown, the channel assembly includes a flow valve body 1 with two flow chambers inside. The flow valve body 1 is made of wear-resistant and rust-proof metal, and its interior is hollow, forming two independent flow chambers. The front end of the flow valve body 1 is provided with a main water inlet channel 2 and three water outlet channels. It adopts a standardized interface design. The port of the main water inlet channel 2 forms a main water inlet for connecting with an external water supply mechanism. The ports of the three water outlet channels form three water outlets for connecting with different functional flow channels of the washing machine, thus forming a valve body structure with one inlet and three outlets.

[0031] The water outlet channels include a normally open water outlet channel 3 located on one side of the main water inlet channel 2, a first water outlet channel 4 located below the normally open water outlet channel 3, and a second water outlet channel 5 located below the main water inlet channel 2. The main water inlet channel 2 and the second water outlet channel 5 are located in one flow chamber, while the normally open water outlet channel 3 and the first water outlet channel 4 are located in the other flow chamber. That is, the main water inlet channel 2 and the three water outlet channels are arranged in a rectangular array in the flow valve body 1, and all three water outlet channels are horizontally arranged and protrude from the front end face of the flow valve body 1. In one possible embodiment, the normally open water outlet channel 3 is generally configured to communicate with the main wash channel of the washing machine, and the first water outlet channel 4 and the second water outlet channel 5 can be connected to the auxiliary functions of the washing machine and switched between them according to actual usage.

[0032] Meanwhile, a water flow channel 6 is provided laterally on the top surface of the rear end of the flow valve body 1. The water flow channel 6 is formed on the top back surface of the flow valve body 1, and one end of the water flow channel 6 is connected to the flow chamber corresponding to the normally open water outlet channel 3. In one possible implementation, from a top view, the water flow channel 6 is in the shape of a "door", and the main water inlet channel 2 and the normally open water outlet channel 3 are directly opposite the vertical parts on both sides of the "door" shape.

[0033] Furthermore, Figure 3 A longitudinal front view of a one-inlet, three-outlet water circuit switching valve provided in this application, such as... Figure 3 As shown, the closing component includes two longitudinally arranged switching channels 7, the bottom ends of which are respectively connected to the switching channels 7 of the two flow chambers. The middle part of one switching channel 7 is connected to the normally open water outlet channel 3, and the middle part of the other switching channel 7 is connected to one end of the water flow channel 6. The other end of the water flow channel 6 is connected to the flow chamber corresponding to the normally open water outlet channel 3. That is, the two ends of the water flow channel 6 are respectively connected to the flow chamber corresponding to the normally open water outlet channel 3 and the middle position of the switching channel 7 located in the other flow chamber.

[0034] The two flow chambers include a first chamber 101 corresponding to the normally open water outlet channel 3 and the first water outlet channel 4, and a second chamber 102 for connecting the main water inlet channel 2 and the second water outlet channel 5. The bottom end of one switching channel 7 is located in the first chamber 101, and the bottom end of the other switching channel 7 is located in the second chamber 102. The first chamber 101 and the second chamber 102 are set independently.

[0035] In other words, the flow valve body 1 has a total of seven channels, namely the main water inlet channel 2, the normally open water outlet channel 3, the first water outlet channel 4, the second water outlet channel 5, the water flow channel 6, and two longitudinally arranged switching channels 7. One of the switching channels 7, the normally open water outlet channel 3, and the first water outlet channel 4 are located in the first cavity 101. At the same time, the switching channel 7 in the first cavity 101 is connected to the normally open water outlet channel 3. One end of the water flow channel 6 is directly connected to the first cavity 101. The other switching channel 7, the main water inlet channel 2, and the second water outlet channel 5 are located in the second cavity 102. The switching channel 7 in the second cavity 102 is connected to the other end of the water flow channel 6. The main water inlet channel 2 is directly connected to the second cavity 102.

[0036] Further, see Figure 3 The switching channel 7 is equipped with a telescopic plunger 8 that can be moved longitudinally. The blocking end of the telescopic plunger 8 is located in the flow chamber of the flow valve body 1, and the blocking end of one telescopic plunger 8 faces the first water outlet channel 4, while the blocking end of the other telescopic plunger 8 faces the second water outlet channel 5. The two telescopic plungers 8 can perform telescopic actions. Through the different telescopic states of the two telescopic plungers 8, the connection between the main water inlet channel 2 and any one of the water outlet channels can be controlled.

[0037] That is, the blocking end of the telescopic plug 8 of the switching channel 7 located in the second cavity 102 faces the inlet end of the second water outlet channel 5, and the blocking end of the telescopic plug 8 of the switching channel 7 located in the first cavity 101 faces the inlet end of the first water outlet channel 4.

[0038] Furthermore, the end of the switching channel 7 that extends into the flow chamber of the flow valve body 1 is provided with an opening, and the inner diameter of the opening is larger than the outer diameter of the telescopic plunger 8. The switching channel 7 not only serves as a placement channel for the telescopic plunger 8, but also participates in the water flow switching operation. Therefore, it must have an opening at its bottom, the diameter of which is larger than the outer diameter of the telescopic plunger 8, so that water flow can pass through the gap between the telescopic plunger 8 and the opening.

[0039] The specific connection mechanism of the flow valve body 1 in this application is as follows: For ease of description, the switching channel 7 located in the first cavity 101 and with its blocked end facing the first water outlet channel 4 is referred to as the first channel 701, and the switching channel 7 located in the second cavity 102 and with its blocked end facing the second water outlet channel 5 is referred to as the second channel 702. Therefore, the three water outlet states in this application are as follows:

[0040] Normally open outlet connection: Figure 4 This application provides a schematic diagram of the normally open outlet channel 3 of a one-inlet, three-outlet water switching valve in a connected state, as shown in the figure. Figure 4 As shown, when the telescopic plugs 8 in the first channel 701 and the second channel 702 are both in the extended state, the inlet end of the first outlet channel 4 and the inlet end of the second outlet channel 5 are both blocked. The water flow path is: main inlet channel 2 (not shown in the figure) - second cavity 102 - water level rises to water flow channel 6 - first cavity 101 - first channel 701 - normally open outlet (not shown in the figure).

[0041] First water outlet channel 4 is connected to: Figure 5 This application provides a schematic diagram of the connected state of the first outlet channel 4 of a one-inlet, three-outlet water switching valve, as shown in the figure. Figure 5 As shown, when the telescopic plug 8 of the second channel 702 extends and the telescopic plug 8 in the first channel 701 retracts, the second water outlet channel 5 is blocked and the water flows to the first water outlet channel 4. The specific water flow path is: main water inlet channel 2 - second cavity 102 - water level rises to water flow channel 6 - first cavity 101 - first water outlet channel 4.

[0042] The second water outlet channel 5 is connected to: Figure 6 A schematic diagram of the connected state of the second outlet channel 5 of a one-inlet, three-outlet water switching valve provided in this application is shown below. Figure 6 As shown, when the telescopic plunger 8 of the first channel 701 extends and the telescopic plunger 8 of the second channel 702 retracts, the water flows to the second outlet channel 5. The specific water flow path is: main inlet channel 2 - second cavity 102 - second outlet channel 5. Since the water flow channel 6 is located at a higher position and the second outlet channel 5 is in a flowing state, the water level in the second cavity 102 will not rise to the water flow channel 6, and the water will not flow into the first cavity 101. Therefore, the normally open outlet channel 3 located in the first cavity 101 will not discharge water.

[0043] Further, see Figure 1 The flow valve body 1 has a support frame 9 at the top and a control valve 10 located at the bottom of the support frame 9 for controlling the extension and retraction of the telescopic plunger 8. In one possible embodiment, the support frame 9 is inverted L-shaped, with its horizontal portion used to fix the control valve 10, and the vertical portions of the two support frames 9 are far apart to reserve installation space for the control valve 10. There are two control valves 10, each controlling a single telescopic plunger 8.

[0044] Furthermore, Figure 7 An exploded view of a one-inlet, three-outlet water circuit switching valve provided in this application is shown below. Figure 7The control valve 10 includes a fixed stationary iron core 1001 and a coil 1002 located on the outer periphery of the stationary iron core 1001. The coil 1002 is provided with a connector. A retaining spring 1003 is provided at the end of the stationary iron core 1001 facing the flow valve body 1. The end of the retaining spring 1003 facing the flow valve body 1 is fixedly connected to the top of the telescopic plunger 8. The energized state of the coil 1002 can control the stationary iron core 1001 to generate magnetism, so as to push the telescopic plunger 8 to move. The telescopic plunger 8 is equivalent to the moving magnet in the traditional solenoid valve. Its displacement principle is a commonly used technology and will not be described in detail here.

[0045] The bottom end of the switching channel 7 is located in the flow chamber of the flow valve body 1, and the top end extends out of the flow valve body 1. The control valve 10 is located at the top of the switching channel 7. In this application, the outer diameter of the control valve 10 is configured to be no larger than the inner diameter of the switching channel 7 so as to be installed at the top of the switching channel 7. The switching channel 7 has a certain height to increase the distance between the flow valve body 1 and the control valve 10 and prevent water from splashing and damaging the control valve 10. In one possible embodiment, an isolation member for blocking water can be provided inside the switching channel 7. The control valve 10 is located at the upper end of the isolation member. The lower part of the telescopic plunger 8 passes through the isolation member to ensure normal flow channel switching operation.

[0046] Further, see Figure 3 The bottom end of the telescopic plunger 8 passes through the opening to correspond to the first water outlet channel 4 and the second water outlet channel 5 respectively, and the bottom end of the telescopic plunger 8 is provided with a plug head 801. In one possible embodiment, the plug head 801 is made of rubber to improve the sealing performance, and the cross-section of the plug head 801 is larger than the diameter of the first water outlet channel 4 and the second water outlet channel 5.

[0047] Further, see Figure 7 The flow valve body 1 includes an upper valve body 103 and a lower valve body 104. A first cavity 101 and a second cavity 102 are formed in the upper valve body 103, and a first water outlet channel 4 and a second water outlet channel 5 are formed in the lower valve body 104. A sealing gasket 105 is provided at the connection between the upper valve body 103 and the lower valve body 104. In one possible embodiment, the bottom of the lower valve body 104 is provided with a protrusion, the bottom of the upper valve body 103 is provided with a mating groove, and a screw position is provided at a suitable position on the housing. The two are connected by a method of first fitting and then mechanically fixing, and a sealing gasket 105 is provided at the connection to improve the overall sealing performance of the structure.

[0048] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0049] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0050] The above are merely specific embodiments of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A one-inlet, three-outlet water circuit switching valve, characterized in that, include: The channel assembly includes a flow valve body (1) with two flow chambers inside. The front end face of the flow valve body (1) is provided with a main water inlet channel (2) and three water outlet channels that are horizontally protruding from the flow valve body (1). The water outlet channels include a normally open water outlet channel (3) located on one side of the main water inlet channel (2), a first water outlet channel (4) located below the normally open water outlet channel (3), and a second water outlet channel (5) located below the main water inlet channel (2). The main water inlet channel (2) and the second water outlet channel (5) are located in one of the flow chambers, and the normally open water outlet channel (3) and the first water outlet channel (4) are located in the other flow chamber. The top of the rear end face of the flow valve body (1) is provided with a horizontally arranged water flow channel (6). The closing assembly includes two longitudinally arranged switching channels (7) whose bottom ends respectively enter a flow chamber. The middle part of one switching channel (7) is connected to the normally open water outlet channel (3), and the middle part of the other switching channel (7) is connected to one end of the water flow channel (6). The other end of the water flow channel (6) is connected to the flow chamber corresponding to the normally open water outlet channel (3). The switching channel (7) is provided with a telescopic plunger (8) that can be longitudinally displaced. The blocking end of the telescopic plunger (8) is located in the flow chamber of the flow valve body (1), and the blocking end of one telescopic plunger (8) faces the inlet end of the first water outlet channel (4), while the blocking end of the other telescopic plunger (8) faces the inlet end of the second water outlet channel (5).

2. The one-inlet, three-outlet water circuit switching valve as described in claim 1, characterized in that: The two flow chambers include a first chamber (101) corresponding to the normally open water outlet channel (3) and the first water outlet channel (4), and a second chamber (102) corresponding to the main water inlet channel (2) and the second water outlet channel (5), wherein the bottom end of one switching channel (7) is located in the first chamber (101), and the bottom end of the other switching channel (7) is located in the second chamber (102).

3. The one-inlet, three-outlet water circuit switching valve as described in claim 1, characterized in that: The flow valve body (1) is provided with a support frame (9) at the top and a control valve (10) located at the bottom of the support frame (9) for controlling the extension and retraction of the telescopic plunger (8).

4. The one-inlet, three-outlet water circuit switching valve as described in claim 3, characterized in that: The control valve (10) includes a fixed stationary iron core (1001) and a coil (1002) located on the outer periphery of the stationary iron core (1001), and the coil (1002) is provided with a connector.

5. A one-inlet, three-outlet water circuit switching valve as described in claim 4, characterized in that: A retaining spring (1003) is provided at one end of the stationary iron core (1001) facing the flow valve body (1), and the end of the retaining spring (1003) facing the flow valve body (1) is fixedly connected to the top of the telescopic plug (8).

6. A one-inlet, three-outlet water circuit switching valve as described in claim 3, characterized in that: The bottom end of the switching channel (7) is located in the flow chamber of the flow valve body (1), and the top end extends out of the flow valve body (1). The control valve (10) is located at the top of the switching channel (7).

7. A one-inlet, three-outlet water circuit switching valve as described in claim 6, characterized in that: The end of the switching channel (7) that extends into the flow chamber of the flow valve body (1) has an opening, and the inner diameter of the opening is larger than the outer diameter of the telescopic plug (8).

8. A one-inlet, three-outlet water circuit switching valve as described in claim 7, characterized in that: The bottom ends of the two telescopic plungers (8) pass through the openings of the corresponding switching channels (7) to correspond to the first water outlet channel (4) and the second water outlet channel (5) respectively, and the bottom ends of the telescopic plungers (8) are provided with plugs (801).

9. A one-inlet, three-outlet water circuit switching valve as described in claim 2, characterized in that: The flow valve body (1) includes an upper valve body (103) and a lower valve body (104). The first cavity (101) and the second cavity (102) are formed in the upper valve body (103), and the first water outlet channel (4) and the second water outlet channel (5) are formed in the lower valve body (104).

10. A one-inlet, three-outlet water circuit switching valve as described in claim 9, characterized in that: A sealing gasket (105) is provided at the connection between the upper valve body (103) and the lower valve body (104).

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