A waterway cleaning structure for the inner drum of a washing machine and a multi-barrel washing machine

Abstract

The present invention provides a waterway cleaning structure for the inner cylinder of a washing machine, comprising: a first multi-way valve, a one-way check valve, a water pump, and a second multi-way valve that are connected in sequence. The first multi-way valve is provided with n water inlets and one water outlet, and the second multi-way valve is provided with n water outlets and one water inlet, where n is a positive integer greater than 2; a filtering device is provided between the one-way check valve and the water pump, and / or a disinfection and sterilization device is provided between the water pump and the second multi-way valve. In addition, the present invention also provides a multi-barrel washing machine adopting this waterway cleaning structure.

Description

Technical Field

[0001] The present invention relates to a washing machine, and particularly to a waterway cleaning structure for an inner drum of a washing machine and a multi-barrel washing machine. Background Art

[0002] After a washing machine has been used for a period of time, it is very easy for the inner drum to accumulate some lint that is difficult to remove. Especially at the tripod on the back of the inner drum assembly, it is the most likely place to accumulate residual debris and is difficult to clean, and even a high-temperature drum cleaning program is difficult to clean thoroughly. In addition, clothes worn for a long time may adhere to some bacteria, etc., and at this time, disinfection and sterilization are also required to protect everyone's health. In the currently existing washing machines, it is impossible to effectively remove the debris in the waterway system, impossible to achieve disinfection and sterilization, and even less able to control the complex waterway system in a multi-barrel washing machine. Summary of the Invention

[0003] In view of this, the present invention provides a waterway cleaning structure for an inner drum of a washing machine and a multi-barrel washing machine to solve the above problems. Specifically:

[0004] A first aspect of the present invention provides a waterway cleaning structure for an inner drum of a washing machine, including: a first multi-way valve, a one-way check valve, a water pump, and a second multi-way valve that are connected in sequence.

[0005] The first multi-way valve is provided with n water inlets and one water outlet, and the second multi-way valve is provided with n water outlets and one water inlet, where n is a positive integer greater than 2.

[0006] A filtering device is provided between the one-way check valve and the water pump, and / or a disinfection and sterilization device is provided between the water pump and the second multi-way valve.

[0007] Wherein when both the filtering device and the disinfection and sterilization device are provided, the water outlet of the first multi-way valve communicates with the water inlet of the one-way check valve, the water outlet of the one-way check valve communicates with the water inlet of the filtering device, the water outlet of the filtering device communicates with the water inlet of the water pump, the water outlet of the water pump communicates with the water inlet of the sterilization device, and the water outlet of the sterilization device communicates with the water inlet of the second multi-way valve; when only the filtering device is adopted, the water outlet of the one-way check valve communicates with the water inlet of the filtering device, and the water outlet of the filtering device communicates with the water inlet of the water pump; when only the disinfection and sterilization device is adopted, the water outlet of the water pump communicates with the water inlet of the sterilization device, and the water outlet of the sterilization device communicates with the water inlet of the second multi-way valve.

[0008] Further optionally, both the first multi-way valve and the second multi-way valve adopt a rotary multi-way valve structure, and the rotary multi-way valve structure includes:

[0009] A housing, which is in the shape of a long cylinder.

[0010] A valve core is rotatably arranged in the shell along the axial direction of the long cylinder of the shell;

[0011] A driving component is arranged on one side of the valve core to drive the valve core to rotate in the shell;

[0012] A total shell intersection is provided on the upper circumferential surface of the shell, and a plurality of shell branch intersections are provided on the lower circumferential surface of the shell;

[0013] A plurality of first valve core liquid passages for communicating with the total shell intersection and a plurality of second valve core liquid passages for communicating with the plurality of shell branch intersections are formed on the outer circumferential surface of the valve core; the plurality of first valve core liquid passages and the plurality of second valve core liquid passages correspond one by one and form respective independent flow channels;

[0014] When the valve core is driven by the driving component to rotate to different preset angles, an inlet and an outlet of a flow channel corresponding in the valve core are correspondingly connected to the total shell intersection and the shell branch intersections according to a preset rule.

[0015] Further optionally, the rotary multi-way valve structure is a three-way valve, a total shell intersection is provided on the upper circumferential surface of the shell, three shell branch intersections are provided on the lower circumferential surface of the shell, and the three shell branch intersections are, in order from left to right, a first shell branch intersection, a second shell branch intersection, and a third shell branch intersection;

[0016] The flow channels in the valve core include a first flow channel, a second flow channel, and a third flow channel, and the first flow channel, the second flow channel, and the third flow channel are not in the same plane, wherein:

[0017] The first flow channel forms a first through hole A and a first through hole B on the circumferential surface of the valve core;

[0018] The second flow channel forms a second through hole A and a second through hole B on the circumferential surface of the valve core;

[0019] The third flow channel forms a third through hole A and a third through hole B on the circumferential surface of the valve core;

[0020] The valve core forms a first notch between the position where the first through hole A corresponds to the total shell intersection and a second notch between the position where the second through hole A corresponds to the total shell intersection;

[0021] The first notch and the second notch are misaligned so that the two are not simultaneously connected to the total shell intersection; the third through hole A is misaligned with the first notch and the second notch to form non-connection;

[0022] When the first through hole A is connected to the total shell intersection through the first notch, the first through hole B is connected to the first shell branch intersection;

[0023] When the second through-hole A is communicated with the total housing intersection through the second notch, the second through-hole B is communicated with the third housing branch intersection;

[0024] When the third through-hole A is communicated with the total housing intersection, the third through-hole B is communicated with the second housing branch intersection.

[0025] Further optionally, the first flow channel, the second flow channel and the third flow channel are all opened along the radial direction of the valve core.

[0026] Further optionally, the rotary multi-way valve structure further includes: a first sealing ring, a second sealing ring, a third sealing ring and a fourth sealing ring,

[0027] The first sealing ring is sleeved on the valve core and is located at one end far from the driving component; the second sealing ring is sleeved on the valve core and is located between the first flow channel and the third flow channel; the third sealing ring is sleeved on the valve core and is located between the second flow channel and the third flow channel; the fourth sealing ring is sleeved on the valve core and is located at one end close to the driving component.

[0028] Further optionally, a first sealing ring support bridge is provided on the first notch, and a second sealing ring support bridge is provided on the second notch.

[0029] Further optionally, the driving component includes a motor for driving the valve core to rotate to a preset angle in the housing to form different passages.

[0030] Further optionally, a sealing gasket is provided between the motor and the valve core.

[0031] Further optionally, a cylinder bottom is provided at one end of the housing far from the driving component,

[0032] wherein a positioning support groove is provided on the inner side surface of the cylinder bottom, a positioning post is provided at the axis of one end of the valve core close to the cylinder bottom, and the positioning post is assembled in the positioning support groove.

[0033] Further optionally, the first flow channel and the second flow channel are opened on the same plane, and the first notch and the second notch are symmetrically opened on both sides of the valve core.

[0034] Further optionally, the opening direction of the first flow channel and the opening direction of the third flow channel form a 90° angle.

[0035] In a second aspect of the present invention, a multi-barrel washing machine is provided, and the multi-barrel washing machine includes a water circuit system, and the water circuit cleaning structure described in any one of the above is adopted in the water circuit system.

[0036] Further optionally, the multiple tubs include n laundry treatment tubs,

[0037] wherein the n water inlets of the waterway cleaning structure correspond to the outlets of the n laundry treatment tubs one by one and are connected through pipelines; the n water outlets of the waterway cleaning structure correspond to the inlets of the n laundry treatment tubs one by one and are connected through pipelines.

[0038] Beneficial effects: A waterway cleaning structure is provided in the present invention, which can effectively remove the sundries in the waterway system. By adding a filtering device and a disinfection and sterilization device in the waterway cleaning structure, the sundries passing through the waterway structure can be filtered, and the water can be disinfected and sterilized. The washing machine equipped with this waterway structure can ensure that there are no sundries such as lint in the circulating water, ensure the cleaning effect, and at the same time perform disinfection and sterilization. After adding the waterway cleaning structure to the washing machine, the washing effect is also improved, the residual foam is effectively removed, and the inner tub is kept fresh and clean, which is suitable for switching and controlling the complex waterways in a multi-tub washing machine at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] By referring to the accompanying drawings and describing its exemplary embodiments in detail, the above and other objects, features, and advantages of the present disclosure will become more apparent. The following described drawings are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0040] Figure 1 is a schematic diagram of a waterway structure equipped with a filtering device and a disinfection and sterilization device according to an embodiment of the present invention;

[0041] Figure 2 is an exploded view of a waterway structure equipped with a filtering device and a disinfection and sterilization device according to an embodiment of the present invention;

[0042] Figure 3 is a schematic diagram of a waterway structure after removing the filtering device and the disinfection and sterilization device according to an embodiment of the present invention;

[0043] Figure 4 is an exploded view of a multi-way valve according to an embodiment of the present invention;

[0044] Figure 5 is an overall schematic diagram of the assembled multi-way valve according to an embodiment of the present invention;

[0045] Figure 6 is a schematic sectional view of the third flow channel connection of the assembled multi-way valve according to an embodiment of the present invention;

[0046] Figure 7 is a schematic sectional view of the first flow channel connection of the assembled multi-way valve according to an embodiment of the present invention;

[0047] Figure 8 It is a schematic diagram of the second flow channel connection cross-section after the multi-way valve assembly in an embodiment of the present invention;

[0048] Figure 9 It is a schematic diagram of the water circuit system circulation in an embodiment of the present invention.

[0049] In the figure: 1 - housing; 101 - total housing intersection; 102 - first housing branch intersection; 103 - second housing branch intersection; 104 - third housing branch intersection; 105 - bottom of the cylinder; 106 - positioning support groove; 2 - valve core; 201 - first notch; 202 - second notch; 203 - first flow channel; 204 - second flow channel; 205 - third flow channel; 206 - positioning post; 207 - first through hole A; 208 - first through hole B; 209 - second through hole A; 210 - second through hole B; 211 - third through hole A; 212 - third through hole B; 213 - first sealing ring support bridge; 214 - second sealing ring support bridge; 3 - drive assembly; 4 - sealing ring; 5 - sealing washer; 61 - first multi-way valve; 62 - second multi-way valve; 63 - water pump; 64 - filtering device; 65 - disinfection and sterilization device; 66 - one-way check valve; 71 - first spraying structure; 72 - second spraying structure; 73 - third spraying structure; 81 - first barrel; 82 - second barrel; 83 - third barrel. Detailed implementation manners

[0050] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0051] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "said" used in the embodiments of the present invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. "Plural" generally includes at least two, but does not exclude the case of including at least one.

[0052] It should be understood that the term " / and" used herein is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0053] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a commodity or system comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such commodity or system. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the commodity or system comprising said element.

[0054] In the present invention, for the in-barrel water circulation cleaning of a multi-barrel washing machine, a shared circulation water pump is adopted. By cooperating and switching the first multi-way valve arranged in front of the pump and the second multi-way valve arranged behind the pump, different open states are formed to achieve the in-barrel circulation cleaning of the multi-barrel washing machine. A one-way check valve is added in front of the pump, and the water outlet end of the one-way check valve is connected to the water inlet end of the water pump; the water outlet end of the first multi-way valve is connected to the water inlet end of the one-way check valve; the water inlet end of the second multi-way valve is connected to the water outlet of the circulation water pump. Filtration is carried out in front of the pump, and disinfection and sterilization are carried out behind the pump.

[0055] To better illustrate the solution of the present invention, the following embodiments are provided.

[0056] Embodiment 1

[0057] As Figures 1-8 shown, in this embodiment, a waterway cleaning structure for the inner barrel of a washing machine is provided, including: a first multi-way valve, a one-way check valve, a water pump, and a second multi-way valve connected in sequence. The first multi-way valve is provided with n water inlets and one water outlet; the second multi-way valve is provided with n water outlets and one water inlet, where n is a positive integer greater than 2; a filtering device is provided between the one-way check valve and the water pump, and / or a disinfection and sterilization device is provided between the water pump and the second multi-way valve.

[0058] When both the filtering device and the disinfection and sterilization device are provided, the water outlet of the first multi-way valve communicates with the water inlet of the one-way check valve, the water outlet of the one-way check valve communicates with the water inlet of the filtering device, the water outlet of the filtering device communicates with the water inlet of the water pump, the water outlet of the water pump communicates with the water inlet of the sterilization device, and the water outlet of the sterilization device communicates with the water inlet of the second multi-way valve; when only the filtering device is adopted, the water outlet of the one-way check valve communicates with the water inlet of the filtering device, and the water outlet of the filtering device communicates with the water inlet of the water pump; when only the disinfection and sterilization device is adopted, the water outlet of the water pump communicates with the water inlet of the sterilization device, and the water outlet of the sterilization device communicates with the water inlet of the second multi-way valve.

[0059] The first multi-way valve and the second multi-way valve serve as the water inlet and outlet of the waterway cleaning structure. This configuration enables the water inlet at the front end of the waterway cleaning structure to correspond one-to-one with the water outlet at the rear end of the waterway cleaning structure, forming multiple connection modes.

[0060] In some optional implementation manners, both the first multi-way valve 61 and the second multi-way valve 62 adopt a rotary multi-way valve structure, and they only differ in the installation manner (the inlets and outlets of the first multi-way valve and the second multi-way valve are arranged in opposite directions).

[0061] Specifically, the rotary multi-way valve structure includes: a housing 1, a valve core 2, and a driving assembly 3. The housing is in the shape of a long cylinder; the valve core is rotatably arranged in the housing along the axial direction of the long cylinder of the housing; the driving assembly is arranged on one side of the valve core to drive the valve core to rotate in the housing.

[0062] At this time, a total housing intersection is provided on the upper circumferential surface of the housing, and a plurality of housing branch intersections are provided on the lower circumferential surface. The upper circumferential surface and the lower circumferential surface are relatively arranged, not in the narrow sense of up and down. It is only for the convenience of explaining the relative relationship between the housing liquid inlet and the housing liquid outlet, that is, the liquid inlet and the liquid outlet are separately arranged on the circumferential surfaces along different radial directions.

[0063] A plurality of first valve core liquid passage openings for communicating with the total housing intersection are formed on the outer circumferential surface of the valve core, and at the same time, a plurality of second valve core liquid passage openings for communicating with the plurality of housing branch intersections are formed. The plurality of first valve core liquid passage openings correspond one-to-one with the plurality of second valve core liquid passage openings and form respective independent flow channels. The flow channels are not connected to each other, and only the corresponding valve core liquid inlets and valve core liquid outlets are connected.

[0064] When the valve core is driven by the driving assembly to rotate to different preset angles, at a corresponding position in the valve core, the inlet and outlet of a flow channel are correspondingly connected with the total housing intersection and the housing branch intersection according to a preset rule. The preset rule means that at any preset angle, an independent flow channel will be correspondingly provided on the valve core. The inlet of the flow channel is connected to the inlet of the housing, and the outlet of the flow channel is connected to the outlet of the housing. This connection method realizes independent connection. At this time, when one flow channel rotates to be connected, the other flow channels will not be connected to the inlet of the housing.

[0065] In some more specific alternative implementation manners, the rotary multi-way valve structure is a three-way valve. There is a total housing intersection 101 on the upper circumferential surface of the housing, and three housing branch intersections are provided on the lower circumferential surface. The three housing branch intersections are, in order from left to right, a first housing branch intersection 102, a second housing branch intersection 103, and a third housing branch intersection 104. In the waterway cleaning structure provided with a disinfection and sterilization device: for the first multi-way valve, the total housing intersection thereof is connected to the water inlet of the one-way check valve 66, and at the same time, each housing branch intersection serves as the water inlet of the waterway cleaning structure; for the second multi-way valve, the total housing intersection thereof is connected to the water outlet of the disinfection and sterilization device 65, and at the same time, each branch intersection serves as the water outlet of the waterway cleaning structure.

[0066] The flow channels in the valve core include a first flow channel 203, a second flow channel 204, and a third flow channel 205. The first flow channel, the second flow channel, and the third flow channel are not in the same plane. Among them: the first flow channel forms a first through hole A207 and a first through hole B208 on the circumferential surface of the valve core; the second flow channel forms a second through hole A209 and a second through hole B210 on the circumferential surface of the valve core; the third flow channel forms a third through hole A211 and a third through hole B212 on the circumferential surface of the valve core.

[0067] The valve core forms a first notch between the position corresponding to the first through hole A and the total housing intersection, and forms a second notch between the position corresponding to the second through hole A and the total housing intersection. To ensure that the flow channels are not communicated with each other, the first notch 201 and the second notch 202 can be formed in a staggered manner so that they are not communicated with the total housing intersection 101 at the same time, and the third through hole A211 is also formed in a staggered manner with the first notch 201 and the second notch 202 to be not communicated.

[0068] Since the valve core 2 is arranged inside the housing 1 and can be rotated to a preset angle, that is: when the first through hole A is communicated with the total housing intersection through the first notch, the first through hole B is communicated with the first housing branch intersection; when the second through hole A is communicated with the total housing intersection through the second notch, the second through hole B is communicated with the third housing branch intersection; when the third through hole A is communicated with the total housing intersection, the third through hole B is communicated with the second housing branch intersection.

[0069] In some alternative implementation manners, the first flow channel, the second flow channel, and the third flow channel are all opened along the radial direction of the valve core. Arranging the flow channels in the radial direction can make the valve core structure more regular, avoid the uneven thickness on both sides of the valve core flow channel due to the offset flow channel, and prevent damage that may occur due to wear after long-term use. This structure increases the service life of the valve core.

[0070] In order to enhance the sealing performance between the flow channels of the valve core, a sealing ring 4 is also provided on the valve core of the rotary multi-way valve. Specifically, the sealing ring 4 also includes: a first sealing ring, a second sealing ring, a third sealing ring and a fourth sealing ring. The first sealing ring is sleeved on the valve core 2 and is located at an end away from the drive assembly 3; the second sealing ring is sleeved on the valve core 2 and is located between the first flow channel 203 and the third flow channel 205; the third sealing ring is sleeved on the valve core 2 and is located between the second flow channel 204 and the third flow channel 205; the fourth sealing ring is sleeved on the valve core 2 and is located at an end close to the drive assembly 3. The three flow channels are isolated by four sealing rings, thereby avoiding the situation where water flows into each other due to poor sealing performance between the housing and the valve core.

[0071] Further optionally, a first sealing ring support bridge 213 is provided on the first notch 201, and a second sealing ring support bridge 214 is provided on the second notch 202. Since the sealing ring 4 is mostly made of relatively soft materials, such as rubber, silicone and the like, it has a certain degree of deformation; the valve core and the housing can be made of metal materials, such as the valve core is made of copper, and the housing is made of stainless steel, etc. At this time, the sealing rings on the left and right sides can be supported respectively by the two sealing ring support bridges, thereby avoiding the sealing ring being deformed due to stress, which leads to the inability to seal the gap between the valve core and the housing well, resulting in poor sealing effect.

[0072] In order to improve automation and reduce manpower to achieve automatic control, the driving assembly includes a motor that can drive the valve core to rotate to a preset angle in the housing to form different passages. A sealing gasket is provided between the motor and the valve core to prevent water from overflowing the three-way valve and even burning the motor.

[0073] A cylinder bottom 105 is provided at one end of the housing away from the drive assembly 3. In some implementations, a positioning support groove 106 is provided on the inner side of the cylinder bottom 105. A positioning column 206 is provided at the axis of one end of the valve core 2 close to the cylinder bottom 105. The positioning column 206 is assembled in the positioning support groove 106. Through the cooperation of the positioning support groove and the positioning column, the valve core 2 can be limited and supported, and the rotation of the valve core in the housing is facilitated. Furthermore, rolling parts such as bearings can be arranged in the positioning support groove to reduce friction between components.

[0074] Further optionally, the first flow channel 203 and the second flow channel 204 are opened on the same plane, the first notch 201 and the second notch 202 are symmetrically opened on both sides of the valve core. The opening direction of the first flow channel 203 and the opening direction of the third flow channel 205 are 90 degrees.

[0075] The first multi-way valve and the second multi-way valve in the present invention both cleverly utilize the flow channel and the special notch opened inside the valve core to form three different opening states with the inlet and outlet of the housing:

[0076] (1) When the motor is in the power-off state, the third flow channel is in the open state;

[0077] (2) When the motor rotates forward 90° during power-on, the first flow channel is in the open state;

[0078] (3) When the motor rotates backward 90° during power-on, the second flow channel is in the open state.

[0079] By correspondingly setting the connection mode of the channels between the first multi-way valve 61 and the second multi-way valve 62, the switching of the connection of the pipelines at both ends of the waterway cleaning structure can be realized.

[0080] Embodiment 2

[0081] As Figures 1-9 shown, in this embodiment, a multi-barrel washing machine is provided. The multi-barrel washing machine includes a waterway system, and the waterway system adopts the waterway cleaning structure described in any one of the above. As the multi-barrel includes n clothes treatment barrels, the n water inlets of the waterway cleaning structure correspond to the outlets of the n clothes treatment barrels one by one and are connected through pipelines; the n water outlets of the waterway cleaning structure correspond to the inlets of the n clothes treatment barrels one by one and are connected through pipelines.

[0082] Specifically, the front and back sides of the waterway cleaning structure correspondingly communicate with multiple washing barrels. At this time, after the washing barrels connected on both sides of it are corresponded to the channels formed by the water inlets and outlets in the waterway cleaning structure, the independent water circulation of each washing barrel in the waterway system during the washing process can be realized; the water between the washing barrels can also be cross-circulated and reused. For example, when a three-barrel washing machine is adopted, the water transported to the first barrel 81 by the first spraying structure 71 can be transported to the second barrel 82 through the waterway cleaning structure by the second spraying structure 72 or transported to the third barrel 83 through the third spraying structure 73. During independent circulation or cross-circulation, the filtering device can be used to filter debris, and the disinfection and sterilization device can be used to sterilize.

[0083] The above specifically shows and describes the exemplary embodiments of the present disclosure. It should be understood that the present disclosure is not limited to the detailed structures, setting methods or implementation methods described here; on the contrary, the present disclosure is intended to cover various modifications and equivalent settings included in the spirit and scope of the appended claims.

Claims

1. A multi-barrel washing machine, including a water circuit system, the water circuit system including a waterway cleaning structure for the inner barrel of the washing machine, characterized in that, The multi-barrel washing machine includes three laundry treatment barrels, and the waterway cleaning structure includes: a first multi-way valve, a one-way check valve, a water pump, and a second multi-way valve that are connected in sequence; Both the first multi-way valve and the second multi-way valve are rotary multi-way valve structures. The rotary multi-way valve structure is a three-way valve. The first multi-way valve is provided with three water inlets and one water outlet, and the second multi-way valve is provided with three water outlets and one water inlet. Among them, the three water inlets correspond to the outlets of the three laundry treatment barrels one by one and are connected through pipelines, and the three water outlets correspond to the inlets of the three laundry treatment barrels one by one and are connected through pipelines; A filtering device is provided between the one-way check valve and the water pump, and / or a disinfection and sterilization device is provided between the water pump and the second multi-way valve; When both the filtering device and the disinfection and sterilization device are provided, the water outlet of the first multi-way valve communicates with the water inlet of the one-way check valve, the water outlet of the one-way check valve communicates with the water inlet of the filtering device, the water outlet of the filtering device communicates with the water inlet of the water pump, the water outlet of the water pump communicates with the water inlet of the sterilization device, and the water outlet of the sterilization device communicates with the water inlet of the second multi-way valve; when only the filtering device is adopted, the water outlet of the one-way check valve communicates with the water inlet of the filtering device, and the water outlet of the filtering device communicates with the water inlet of the water pump; when only the disinfection and sterilization device is adopted, the water outlet of the water pump communicates with the water inlet of the sterilization device, and the water outlet of the sterilization device communicates with the water inlet of the second multi-way valve; The three-way valve includes a housing and a valve core; There is a total housing intersection on the upper circumferential surface of the housing, and three housing branch intersections on the lower circumferential surface. The three housing branch intersections are the first housing branch intersection, the second housing branch intersection, and the third housing branch intersection in order from left to right; The flow channels in the valve core include a first flow channel, a second flow channel, and a third flow channel. The first flow channel, the second flow channel, and the third flow channel are not in the same plane, where: The first flow channel forms a first through hole A and a first through hole B on the circumferential surface of the valve core; The second flow channel forms a second through hole A and a second through hole B on the circumferential surface of the valve core; The third flow channel forms a third through hole A and a third through hole B on the circumferential surface of the valve core; The valve core forms a first notch between the position where the first through hole A corresponds to the total housing intersection, and forms a second notch between the position where the second through hole A corresponds to the total housing intersection; The first notch and the second notch are misaligned so that they are not simultaneously communicated with the total housing intersection; the third through hole A is misaligned with the first notch and the second notch and is not communicated; When the first through hole A is communicated with the total housing intersection through the first notch, the first through hole B is communicated with the first housing branch intersection; When the second through hole A is communicated with the total housing intersection through the second notch, the second through hole B is communicated with the third housing branch intersection; When the third through hole A is communicated with the total housing intersection, the third through hole B is communicated with the second housing branch intersection.

2. The multi-barrel washing machine according to claim 1, wherein The housing is in the shape of a long cylinder; The valve core is rotatably arranged in the housing along the axial direction of the long cylinder of the housing; The three-way valve further includes: A driving assembly, arranged on one side of the valve core to drive the valve core to rotate in the housing; Three first valve core liquid passages for communicating with the main intersection of the housing and three second valve core liquid passages for communicating with three branch intersections of the housing are formed on the outer peripheral surface of the valve core; the three first valve core liquid passages correspond to the three second valve core liquid passages one by one and form three independent flow channels respectively; When the valve core is driven by the driving assembly to rotate to different preset angles, the inlet and outlet of a flow channel in the valve core are correspondingly communicated with the main intersection and the branch intersection of the housing according to a preset rule.

3. The multi-barrel washing machine according to claim 1, characterized in that, The first flow channel, the second flow channel and the third flow channel are all opened along the radial direction of the valve core.

4. The multi-barrel washing machine according to claim 2, wherein The three-way valve further includes: a first sealing ring, a second sealing ring, a third sealing ring and a fourth sealing ring, The first sealing ring is sleeved on the valve core and is located at the end far from the driving assembly; the second sealing ring is sleeved on the valve core and is located between the first flow channel and the third flow channel; the third sealing ring is sleeved on the valve core and is located between the second flow channel and the third flow channel; the fourth sealing ring is sleeved on the valve core and is located at the end close to the driving assembly.

5. The multi-barrel washing machine according to claim 1, characterized in that, A first sealing ring support bridge is provided on the first notch, and a second sealing ring support bridge is provided on the second notch.

6. The multi-barrel washing machine according to claim 2, wherein, The driving assembly includes a motor for driving the valve core to rotate to a preset angle in the housing to form different passages.

7. The multi-barrel washing machine according to claim 6, characterized in that, A sealing gasket is provided between the motor and the valve core.

8. The multi-barrel washing machine according to claim 7, wherein, A cylinder bottom is provided at one end of the housing far from the driving assembly, wherein a positioning support groove is provided on the inner side surface of the cylinder bottom, a positioning column is provided at the axis of the end of the valve core close to the cylinder bottom, and the positioning column is assembled in the positioning support groove.

9. The multi-barrel washing machine according to any one of claims 1-8, characterized in that, The first flow channel and the second flow channel are opened on the same plane, and the first notch and the second notch are symmetrically opened on both sides of the valve core.

10. The multi-barrel washing machine according to claim 9, characterized in that, The opening direction of the first flow channel forms a 90° angle with the opening direction of the third flow channel.

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