WO2023173978A1 - Washing machine and control method therefor - Google Patents

Abstract

A washing machine and a control method therefor. The washing machine comprises: a water containing tub (100); a circulating filter pipeline, a water inlet end and a water outlet end of the circulating filter pipeline being separately communicated with the water containing tub (100); a filter device (600), provided on the circulating filter pipeline and having a water inlet (6101), a filtered water outlet (6102) and a waste discharge port (6103); and a waste discharge pipeline (240), communicated with the waste discharge port (6103) of the filter device (600). The washing machine further comprises a control valve assembly (900), comprising: a first valve body (910), provided between the water containing tub (100) and the water inlet (6101) of the filter device (600), and internally provided with a first valve plug (911) for controlling the connection/disconnection between the water containing tub (100) and the water inlet (6101); a second valve body (920), provided on the waste discharge pipeline (240), and internally provided with a second valve plug (921) for controlling the connection/disconnection of the waste discharge pipeline (240); and a driving member, in alternating transmission connection to the first valve plug (911) and the second valve plug (921), so as to drive one of the first valve plug (911) and the second valve plug (921) to move. In the control valve assembly, one driving member can alternatingly drive one of the first valve plug (911) and the second valve plug (921) to move, thus achieving separate control of the connection/disconnection of two independent water paths, the structure is simple, and the costs are reduced.

Description

A washing machine and its control method Technical field

The present invention belongs to the technical field of washing machines, and specifically relates to a washing machine and a control method thereof.

Background technique

During the washing process of the clothes in the washing machine, due to the friction between the clothes and the clothes and the washing machine itself, lint will fall off the clothes and mix into the washing water. If the lint in the washing water cannot be removed, it is likely to adhere to the surface of the clothes after the washing is completed, affecting the cleaning effect of the clothes. For this reason, existing washing machines are equipped with a filter for filtering lint. During the washing process, the washing water is continuously passed through the filter to remove lint from the washing water.

The filter of the existing washing machine is generally installed inside the inner barrel or the drainage pump, and is used to filter lint and debris in the washing water. However, after the washing machine is used for a long time, the filter will be filled with lint and debris, which will affect the filtration effect of the filter, cause the drain valve/drain pump to become blocked, and it is easy to breed bacteria. It needs to be cleaned in time, otherwise It will cause pollution of the washing water, cause secondary pollution to the clothes, and affect the health of users. However, most washing machines require users to remove the filter and clean it manually, which is inconvenient to operate.

For this reason, filtering devices with self-cleaning functions have been proposed in the prior art. However, in order to realize the discharge of sewage after cleaning, a corresponding pipeline structure needs to be added. In addition, for solutions where the filter is installed inside the drainage pump or outside the outer cylinder, in order to achieve cyclic filtration of wash water, a circulation pipeline for washing water circulation needs to be set up in the washing machine, resulting in a more complicated internal water circuit structure of the washing machine. It even takes up a large space inside the washing machine, affecting the volume of clothes that the washing machine can hold.

At the same time, the increasing complexity of the waterway structure will also make the on-off control of the waterway more complicated and cumbersome. If a control valve is installed on each waterway that needs to be controlled, since the control valve needs to be driven to open and close, the number of driving devices on the washing machine needs to be increased, resulting in an increase in production costs. On the other hand, for each control valve to be controlled individually, the wiring inside the washing machine is more complicated, the assembly is more difficult, and the control logic is more complicated.

In view of this, the present invention is proposed.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a washing machine and a control method thereof, in which a control valve assembly is provided to enable the connection and disconnection between the water container and the water inlet of the filter device and the discharge of sewage through a driving member. Separate control of pipeline on-off simplifies the waterway control structure.

In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

A washing machine including:

water container;

The circulating filter pipeline has its water inlet end and water outlet end connected to the water tank respectively;

The filtering device is installed on the circulating filtering pipeline and has a water inlet, a filtered water outlet and a sewage outlet;

The sewage pipeline is connected to the sewage outlet of the filter device;

Also included is a control valve assembly, which includes:

The first valve body is arranged between the water tank and the water inlet of the filter device, and has a first valve plug inside to control the connection between the water tank and the water inlet;

The second valve body is arranged on the sewage pipeline, and has a second valve plug inside to control the opening and closing of the sewage pipeline;

The driving member is selectively connected to the first valve plug and the second valve plug to drive one of the two to move.

Further, the control valve assembly further includes a first follower connected to the first valve plug, and a second follower connected to the second valve plug, and the driving member selectively drives the first follower. and second follower movement.

Further, the first driven member includes a first driven gear, the second driven member includes a second driven gear; the driving member includes a driving wheel, and meshing teeth are partially provided along the outer periphery of the driving wheel. , the meshing teeth can mesh with both the first driven gear and the second driven gear;

Preferably, the driving wheel is disposed between the first driven gear and the second driven gear, the rotation centers of the driving wheel, the first driven gear and the second driven gear are collinear, and the meshing teeth are along the The outer circumference of the driving wheel covers at most half the circumference.

Further, the first valve body is provided with a water inlet connected to the water tank and a circulating water outlet connected to the water inlet; the first valve plug is reciprocally arranged inside the first valve body to connect/disconnect the inlet. Communication between the water inlet and the circulating water outlet; the control valve assembly also includes a first traction member, one end of the first traction member is connected to the first valve plug, and the other end is eccentrically connected to the first driven gear;

And/or, the second valve body is provided with a sewage inlet and a sewage outlet, and the second valve plug is reciprocally disposed inside the second valve body to connect/disconnect the communication between the sewage inlet and the sewage outlet; The control valve assembly also includes a second traction member, one end of the second traction member is connected to the second valve plug, and the other end is eccentrically connected to the second driven gear.

Furthermore, the washing machine further includes an external drainage pipeline for draining water to the outside. The first valve body is also provided with a drainage outlet connected to the external drainage pipeline; the first valve plug connects the water inlet and the circulating water. outlet, the drainage outlet is blocked by the first valve plug; the first valve plug disconnects the communication between the water inlet and the circulating water outlet, and the drainage outlet is connected to the water inlet.

Further, the first valve body has a certain extension length along the movement direction of the first valve plug, the drainage outlet is provided on the end wall of the first valve body, and the water inlet and circulating water outlet are provided on the first valve body. On the side wall of the body; along the length extension direction of the first valve body, the water inlet is located between the circulating water outlet and the drainage outlet.

Further, a first elastic member is also provided in the first valve body to maintain the first valve plug in a position connecting the water inlet and the circulating water outlet; and/or a second elastic member is also provided in the second valve body. A component for keeping the second valve plug in a position that disconnects the sewage inlet and the sewage outlet.

Further, the first valve body has a certain extension length along the movement direction of the first valve plug, and the first traction member penetrates the end wall of the first valve body and is connected to the first driven gear; the first valve plug has a third A sealing part, the first sealing part is in sliding sealing contact with the inside of the side wall of the first valve body; the water inlet and the circulating water outlet are located on the same side of the first sealing part, and the first traction member Located on the other side of the first sealing part;

And/or, the second valve body has a certain extension length along the movement direction of the second valve plug, and the second traction member penetrates the end wall of the second valve body and is connected to the second driven gear; the second valve plug has The second sealing part is in sliding sealing contact with the inside of the side wall of the second valve body; the sewage inlet and the sewage outlet are located on the same side of the second sealing part, and the second traction member Located on the other side of the second sealing part.

Another object of the present invention is to provide a control method for the above-mentioned washing machine, in which a circulation pump is provided on the circulation filter pipeline. The control method includes:

In the initial state, the first valve plug connects the water tank and the water inlet, and the second valve plug cuts off the sewage pipe;

The circulation pump is running, and the water in the water tank enters the filtering device through the first valve body for filtering, and the filtered water returns to the water tank;

The driving part is drivingly connected to the first valve plug, driving the first valve plug to move, disconnecting the water container and the water inlet, and the water in the water container stops entering the filtering device;

The driving member is drivingly connected to the second valve plug, driving the second valve plug to move, leading to the sewage pipeline, and sewage in the filtering device is discharged into the sewage pipeline.

Further, the washing machine further includes an external discharge pipeline for draining water to the outside. The first valve body is provided with a water inlet connected to the water tank, a circulating water outlet connected to the water inlet, and connected to the external discharge pipeline. The drainage outlet; the first valve plug moves in the first valve body so that the water inlet is selectively connected to the circulating water outlet and the drainage outlet;

The control method also includes:

In the initial state, the first valve plug connects the water inlet and circulating water outlet, and the second valve plug cuts off the sewage pipeline;

The driving part is drivingly connected to the first valve plug, driving the first valve plug to move, connecting the water inlet and the drainage outlet, and the circulation pump runs. The water in the water tank enters the outer drain pipe through the first valve body and is discharged from the washing machine.

After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

In the present invention, the washing machine is provided with a control valve assembly, which can respectively control the opening and closing of the water tank and the water inlet of the filter device, as well as the opening and closing of the sewage pipeline connected to the sewage outlet of the filter device, and The control valve assembly controls the opening and closing of the above two independent water channels through a driving component, which can simplify the control structure of the water channels inside the washing machine and help reduce production costs.

In the present invention, meshing teeth are only partially provided on the outer periphery of the driving wheel, so that the meshing teeth can only mesh with one of the first driven gear and the second driven gear at the same time, thereby enabling the driving wheel to pair two driven gears. Driven independently, the structure is simple and easy to implement.

In the present invention, the control of opening and closing of the water path is realized by the first valve plug and the second valve plug respectively reciprocating in the first valve body or the second valve body, and the arrangement of the first sealing part and the second sealing part makes the first sealing part The spaces where the traction part and the second traction part are located are separated from the water flow respectively, which can prevent filter impurities such as wire chips carried in the water flow from being entangled with the first traction part or the second traction part and affecting the operation of the first valve plug and the second valve plug. Smooth movement prevents the failure of control valve components caused by wire debris entanglement.

Specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Description of the drawings

The drawings, as part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings in the following description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts. In the attached picture:

Figure 1 is a schematic diagram of the communication structure between the filter device and the control valve assembly in the embodiment of the present invention (circulation filtration process);

Figure 2 is a schematic diagram of the communication structure between the filter device and the control valve assembly in the embodiment of the present invention (sewage discharge process);

Figure 3 is a schematic diagram of the communication structure between the filter device and the control valve assembly in the embodiment of the present invention (drainage process);

Figure 4 is a schematic structural diagram of the control valve assembly in the embodiment of the present invention;

Figure 5 is a schematic structural diagram of a washing machine in an embodiment of the present invention;

Figure 6 is a schematic structural diagram of the recovery device in the embodiment of the present invention.

In the picture: 10. Box; 100. Water tank; 110. Window pad; 210. Drainage pipeline; 220. Circulation pipeline; 230. Return Water pipeline; 231, return water control valve; 240, sewage pipeline; 250, external discharge pipeline; 260, water tank drainage pipe; 400, circulation pump; 500, recovery device; 510, shell; 520, filter assembly; 531. First chamber; 532. Second chamber; 600. Filter device; 610. Filter cavity; 6101. Water inlet; 6102. Filtered water outlet; 6103. Sewage outlet; 620. Filter mechanism; 621. Water outlet joint ; 660. Driving mechanism; 680. Cleaning particles; 690. Baffle;

900. Control valve assembly; 910. First valve body; 9101. Water inlet; 9102. Circulating water outlet; 9103. Drainage outlet; 911. First valve plug; 9111. Switching part; 9112. First connection part; 9113. First sealing part; 912, first traction member; 913, first elastic member; 914, first driven gear; 920, second valve body; 9201, sewage inlet; 9202, sewage outlet; 921, second valve plug ; 9211. Blocking part; 9212. Second connecting part; 9213. Second sealing part; 922. Second traction member; 923. Second elastic member; 924. Second driven gear; 930. Driving wheel; 931. Meshing teeth; 940, casing.

It should be noted that these drawings and text descriptions are not intended to limit the scope of the invention in any way, but are intended to illustrate the concept of the invention for those skilled in the art by referring to specific embodiments.

Detailed ways

In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. The following examples are used to illustrate the present invention. , but are not used to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limitations of the invention.

In the description of the present invention, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

Embodiment 1

As shown in Figures 1 to 5, the washing machine in this embodiment includes:

Water container 100;

The circulating filter pipeline has its water inlet end and water outlet end connected to the water tank 100 respectively;

The filtering device 600 is provided on the circulating filtering pipeline and has a water inlet 6101, a filtered water outlet 6102 and a sewage outlet. 6103;

The sewage pipeline 240 is connected with the sewage outlet 6103 of the filtering device 600.

The washing machine includes a control valve assembly 900, which specifically includes:

The first valve body 910 is disposed between the water container 100 and the water inlet 6101 of the filter device 600, and has a first valve plug 911 inside to control the connection between the water container 100 and the water inlet 6101;

The second valve body 920 is arranged on the sewage pipeline 240, and has a second valve plug 921 inside to control the opening and closing of the sewage pipeline 240;

The driving member is selectively connected to the first valve plug 911 and the second valve plug 921 to drive one of the two to move.

In this embodiment, a circulation pump 400 is also provided between the water inlet end of the circulation filtration pipeline and the control valve assembly 900 . The control method of the washing machine includes:

In the initial state, the first valve plug 911 connects the water tank 100 and the water inlet 6101, and the second valve plug 921 cuts off the sewage pipeline 240;

When the circulation pump 400 is running, the water in the water container 100 enters the filter device 600 through the first valve body 910 for filtering, and the filtered water returns to the water container 100;

The driving member is drivingly connected to the first valve plug 911, driving the first valve plug 911 to move, disconnecting the water container 100 and the water inlet 6101, and the water in the water container 100 stops entering the filtering device 600;

The driving member is drivingly connected to the second valve plug 921, driving the second valve plug 921 to move, leading to the sewage pipeline 240, and the sewage in the filter device 600 is discharged into the sewage pipeline 240.

In the above solution, the control valve assembly 900 only includes one driving member, which can control the movement of both the first valve plug 911 and the second valve plug 921, thereby controlling the water inlet of the water container 100 and the filter device 600. The on and off between 6101 can also control the on and off of the sewage pipeline 240, so that whether the sewage in the filtering device 600 can be discharged can be controlled. The opening and closing of two independent water paths in the washing machine can be controlled by a driving component, which is beneficial to reducing the number of internal driving devices of the washing machine, such as motors, thereby saving costs. At the same time, the control structure of the water path of the washing machine is simplified, and the control logic of opening and closing the water path is simpler.

In a further solution of this embodiment, in order to realize selective driving connection between the driving member and the first valve plug 911 and the second valve plug 921, the control valve assembly 900 further includes a first driven member connected to the first valve plug 911, and a second follower connected to the second valve plug 921. The driving member selectively drives the first follower and the second follower to move, thereby driving the first valve plug 911 and the second follower at the same time. Valve plug 921 moves either way.

Specifically, the first driven member includes a first driven gear 914 and the second driven member includes a second driven gear 924 . The driving member includes a driving wheel 930, and meshing teeth 931 are partially provided along the outer periphery of the driving wheel 930. The meshing teeth 931 can mesh with both the first driven gear 914 and the second driven gear 924. The driving wheel 930 is connected to a driving motor and can rotate under the driving of the driving motor.

In the above solution, the meshing teeth 931 are only provided in a local area of the outer circumference of the driving wheel 930. When the driving wheel 930 rotates until the meshing teeth 931 mesh with the first driven gear 914, the driving wheel 930 is close to a part of the second driven gear 924. There are no teeth on the outer periphery. in this way. The rotation of the driving wheel 930 can drive the first driven gear 914 to rotate accordingly, while the second driven gear 924 remains stationary at the same time.

Similarly, when the driving wheel 930 rotates until the meshing teeth 931 mesh with the second driven gear 924 , a part of the outer periphery of the driving wheel 930 close to the first driven gear 914 has no teeth. At this time, the rotation of the driving wheel 930 drives the second driven gear 924 to rotate accordingly, while the first driven gear 914 remains stationary.

In the preferred solution of this embodiment, the driving wheel 930 is disposed between the first driven gear 914 and the second driven gear 924, and the driving wheel 930, the first driven gear 914 and the second driven gear 924 are The centers of rotation are collinear. The meshing teeth 931 cover a semicircular range along the outer circumference of the driving wheel 930 .

In the above solution, the rotation centers of the driving wheel 930, the first driven gear 914 and the second driven gear 924 are arranged in line, which can minimize the friction of the control valve assembly 900 in Figures 1 to 5. shows the overall size in the longitudinal direction, thereby reducing the space it takes up inside the washing machine.

When the control valve assembly 900 is in the initial state as shown in Figure 1, the control driving wheel 930 rotates clockwise, and the meshing teeth 931 mesh with the first driven gear 914 on the left, thereby driving the first valve plug 911 to move and disconnect. The communication between the water container 100 and the water inlet 6101. During this period, the second driven gear 924 remains stationary, and the second valve plug 921 remains in a state of cutting off the sewage pipeline 240 .

If the driving wheel 930 is controlled to rotate counterclockwise from the initial state, the meshing teeth 931 mesh with the second driven gear 924 on the right side, driving the second valve plug 921 to move and connect the sewage pipe 240 . At this time, the first driven gear 914 remains stationary, and the first valve plug 911 maintains a state of connecting the water tank 100 and the water inlet 6101.

In a further solution of this embodiment, the first valve body 910 is provided with a water inlet 9101 connected to the water tank 100 and a circulating water outlet 9102 connected to the water inlet 6101. The first valve plug 911 is reciprocally disposed inside the first valve body 910 to connect/disconnect the communication between the water inlet 9101 and the circulating water outlet 9102. The control valve assembly 900 also includes a first traction member 912. The lower end of the first traction member 912 is connected to the first valve plug 911, and the upper end is eccentrically connected to the first driven gear 914.

Similarly, the second valve body 920 is provided with a sewage inlet 9201 and a sewage outlet 9202. The second valve plug 921 is reciprocally disposed inside the second valve body 920 to connect/disconnect the sewage inlet 9201 and the sewage outlet 9202. Connected. The control valve assembly 900 also includes a second traction member 922, the lower end of the second traction member 922 is connected to the second valve plug 921, and the upper end is eccentrically connected to the second driven gear 924.

In the above solution, in the initial state, the upper ends of the first traction member 912 and the second traction member 922 are located at the lowest position. The rotation of the first driven gear 914 or the second driven gear 924 can correspondingly drive the upper end of the first traction member 912 or the second traction member 922 to move upward, thereby pulling the corresponding first valve plug 911 or the second valve plug 921 to move. , to achieve switching between the on-off state of the waterway.

Specifically, both the first valve body 910 and the second valve body 920 have a certain extension length. The first valve plug 911 reciprocates along the length extension direction of the first valve body 910 , and the second valve plug 921 moves along the length extension direction of the second valve body 920 . Reciprocating movement in the direction of length extension.

The lower end of the first valve plug 911 has a switching portion 9111 . The switching portion 9111 is in circumferential sealing contact with the inside of the side wall of the first valve body 910 and can slide along the length extension direction of the first valve body 910 . The water inlet 9101 and the circulating water outlet 9102 are both provided on the side wall of the first valve body 910, and they are spaced apart along the length extension direction of the first valve body 910. In the initial state, the switching part 9111 of the first valve plug 911 abuts the lower end wall of the first valve body 910, and the water inlet 9101 and the circulating water outlet 9102 remain connected. The first valve plug 911 moves upward until the switching part 9111 is located between the water inlet 9101 and the circulating water outlet 9102, thereby disconnecting the communication between the water inlet 9101 and the circulating water outlet 9102.

The sewage inlet 9201 is provided on the side wall of the second valve body 920, and the sewage outlet 9202 is provided on the lower end wall of the second valve body 920. A blocking portion 9211 is provided at the lower end of the second valve plug 921. In the initial state, the blocking portion 9211 abuts the lower end wall of the second valve body 920 to block the sewage outlet 9202, thereby keeping the sewage pipeline 240 in a cut-off state. The second valve plug 921 moves upward to open the sewage outlet 9202. When the outer periphery of the blocking portion 9211 is in sealing contact with the inner wall of the second valve body 920, the blocking portion 9211 moves above the sewage inlet 9201, and the sewage inlet 9201 is connected to the sewage outlet 9202, thereby leading to the sewage pipeline 240.

In the specific solution of this embodiment, the filtering device 600 includes:

The filter cavity 610 has a water inlet 6101, a filtered water outlet 6102 and a sewage outlet 6103;

The filter mechanism 620 is rotatably arranged inside the filter cavity 610;

The driving mechanism 660 is connected to the filtering mechanism 620 and is used to drive the filtering mechanism 620 to rotate in the filtering cavity 610 .

The filter mechanism 620 divides the interior of the filter cavity 610 into an outer cavity and an inner cavity, wherein the water inlet 6101 is connected to the outer cavity, and the filtered water outlet 6102 is connected to the inner cavity. When the control valve assembly 900 is in the initial state, the water tank 100 Water enters the outer chamber through the water inlet 6101 under the action of the circulation pump 400, and enters the inner chamber through the filter mechanism 620 to achieve filtration. The lint carried in the water adheres to the outer wall of the filter mechanism 620, thereby realizing the circulation filtration process of the washing machine.

By driving the filter mechanism 620 to rotate through the driving mechanism 660, the water flow in the filter cavity 610 can be stirred, so that the lint attached to the outer wall of the filter mechanism 620 is peeled off under the dual action of centrifugal force and the agitated water flow, and integrated into the water in the filter cavity 610. When the driving wheel 930 rotates counterclockwise from the initial state, thereby driving the second valve plug 921 to move upward, the sewage outlet 9202 is opened and can be connected to the sewage pipe 240. The sewage carrying filtered impurities can be discharged from the sewage outlet 6103 into the sewage pipe. In road 240, the sewage discharge process of the filter device 600 is realized.

In detail, the circulating filter pipeline of the washing machine in this embodiment specifically includes:

The water tank drainage pipe 260 connects the water tank 100 and the water inlet end of the circulation pump 400;

The drainage pipeline 210 has one end connected to the water outlet end of the circulation pump 400 and the other end connected to the water inlet 9101 of the control valve assembly 900;

The circulation pipeline 220 has one end connected to the circulating water outlet 9102 of the control valve assembly 900 and the other end connected to the water inlet 6101 of the filtering device 600;

One end of the return pipeline 230 is connected to the filtered water outlet 6102 of the filtering device 600, and the other end is connected to the water tank 100 to transport the filtered water to the water tank 100.

In this embodiment, the return pipe 230 is specifically connected to the window gasket 110 at the mouth of the water tank 100 .

Preferably, a return water control valve 231 is provided on the return water pipeline 230 for controlling the opening and closing of the return water pipeline 230 . The driving wheel 930 in the control valve assembly 900 drives the second driven gear 924 to rotate, thereby causing the second valve plug 921 to open the sewage outlet 9202 upward, and at the same time, the return water control valve 231 is closed to cut off the return water pipeline 230 to ensure that the filter cavity 610 is filled with water. The water will not flow out from the filtered water outlet 6102, which is conducive to fully discharging the filtered impurities remaining in the filtering device 600.

In a further solution of this embodiment, the washing machine further includes an external drainage pipeline 250 for draining water to the outside, and the first valve body 910 is further provided with a drainage outlet 9103 connected to the external drainage pipeline 250 . When the first valve plug 911 connects the water inlet 9101 and the circulating water outlet 9102, the drainage outlet 9103 is blocked by the first valve plug 911. The first valve plug 911 disconnects the communication between the water inlet 9101 and the circulating water outlet 9102, and connects the drainage outlet 9103 with the water inlet 9101.

Specifically, the drainage outlet 9103 is provided on the lower end wall of the first valve body 910. Along the length extension direction of the first valve body 910, the water inlet 9101 is located between the circulating water outlet 9102 and the drainage outlet 9103.

Accordingly, washing machine control methods include:

In the initial state, the first valve plug 911 connects the water inlet 9101 and the circulating water outlet 9102, and the second valve plug 921 cuts off the discharge water. Sewage pipeline 240, that is, cutting off the connection between the sewage inlet 9201 and the sewage outlet 9202;

In the cycle filtration process of the washing machine, the circulation pump 400 is running. The water in the water tank 100 enters the first valve body 910 through the water inlet 9101, and then flows out through the circulating water outlet 9102 and enters the filter device 600 for filtering. The filtered water returns to the water tank. 100;

During the sewage discharge process of the filtering device 600, the driving member is drivingly connected to the second valve plug 921, driving the second valve plug 921 to move, connecting the sewage inlet 9201 and the sewage outlet 9202, and the sewage in the filtering device 600 is discharged into the sewage pipe 240;

During the drainage process of the washing machine, the driving part is connected to the first valve plug 911 to drive the movement of the first valve plug 911 to connect the water inlet 9101 and the drainage outlet 9103. The circulation pump 400 runs and the water in the water tank 100 passes through the first valve body. 910 enters the external discharge pipe 250 and discharges the washing machine.

Specifically, the washing machine performs circulation filtration during the washing/rinsing process. The control valve assembly 900 maintains the initial state, opens the return water control valve 231, opens the circulation pump 400, and draws out the water in the water tank 100, through the control valve assembly 900. The first valve body 910 discharges the circulating water from the circulating water outlet 9102, enters the filter device 600 to remove filtered impurities, and then returns to the water tank 100 through the return pipe 230.

After the washing/rinsing is completed, the sewage discharge process of the filter device 600 is performed. The driving wheel 930 rotates to mesh the meshing teeth 931 with the second driven gear 924, driving the second valve plug 921 to move, connecting the sewage inlet 9201 and the sewage outlet 9202, and filtering The sewage in the device 600 is discharged into the sewage pipeline 240. During this period, the circulation pump 400 is preferably turned on, and the operation of the circulation pump 400 provides driving force for the discharge of sewage in the filter device 600 to ensure that the filtered impurities are more fully discharged.

When the washing machine drains water, the driving wheel 930 rotates to engage the meshing teeth 931 with the first driven gear 914, driving the first valve plug 911 to move, connecting the water inlet 9101 and the drainage outlet 9103, the circulation pump 400 runs, and the water in the water tank 100 After water enters the first valve body 910, it is discharged from the drainage outlet 9103, and then is discharged from the washing machine through the external discharge pipe 250.

In the above solution, the circulation pump 400 can provide driving force for the circulation filtration process, the sewage discharge process and the drainage process respectively, reducing the number of water pumps, thereby saving the installation space inside the washing machine. A circulating water outlet 9102 and a drainage outlet 9103 are respectively provided on the first valve body 910 of the control valve assembly 900. Through the movement of the first valve plug 911, one of the two is selectively connected to the water inlet 9101, so that the washing machine can cycle through the filtration process and drain water. The process shares the drainage pipeline 210, which simplifies the waterway structure inside the washing machine and reduces the installation space occupied by arranging the waterway.

In a further solution of this embodiment, a first elastic member 913 is further provided in the first valve body 910 to maintain the first valve plug 911 in a position connecting the water inlet 9101 and the circulating water outlet 9102. A second elastic member 923 is provided in the second valve body 920 to keep the second valve plug 921 in a position to disconnect the communication between the sewage inlet 9201 and the sewage outlet 9202.

Specifically, both the first elastic member 913 and the second elastic member 923 are compression springs. The upper end of the first elastic member 913 and the The upper end wall of a valve body 910 is in contact with the first valve plug 911 , and its lower end is in contact with the first valve plug 911 . The upper end of the second elastic member 923 abuts the upper end wall of the second valve body 920 , and its lower end abuts the second valve plug 921 . The first elastic member 913 and the second elastic member 923 are always in a compressed state, keeping the first valve plug 911 against the inside of the lower end wall of the first valve body 910 and the second valve plug 921 against the lower end of the second valve body 920 inside wall.

By adopting the above structure, the first elastic member 913 can be compressed when the first valve plug 911 moves upward, and then when the driving wheel 930 rotates so that the meshing teeth 931 on it no longer mesh with the first driven gear 914, the first elastic member The elastic force of 913 can push the first valve plug 911 to automatically reset downward. Similarly, the second elastic member 923 can also push the second valve plug 921 downward to automatically reset when the meshing tooth 931 is separated from the second driven gear 924 .

In this case, the driving wheel 930 can always rotate in the same direction and alternately drive the first driven gear 914 and the second driven gear 924 to rotate, without the need for the driving wheel 930 to reversely rotate to drive the first valve plug 911 or the second valve plug 911 or the second driven gear 924 . The valve plug 921 is reset and the control logic is simpler.

In a further solution of this embodiment, the first traction member 912 penetrates the upper end wall of the first valve body 910 and is connected to the first driven gear 914 . The first valve plug 911 has a first sealing portion 9113 at its upper end. The outer periphery of the first sealing portion 9113 is in slidable sealing contact with the inside of the side wall of the first valve body 910 . The first valve plug 911 reciprocates up and down in the first valve body 910 , the water inlet 9101 and the circulating water outlet 9102 are always located on the lower side of the first sealing part 9113 , and the first pulling member 912 is located on the upper side of the first sealing part 9113 .

The second traction member 922 passes through the upper end wall of the second valve body 920 and is connected to the second driven gear 924 . The second valve plug 921 has a second sealing portion 9213, and the second sealing portion 9213 is in slidable sealing contact with the inside of the side wall of the second valve body 920. The second valve plug 921 reciprocates up and down in the second valve body 920 . The sewage inlet 9201 and the sewage outlet 9202 are always located on the lower side of the second sealing part 9213 , and the second pulling member 922 is located on the upper side of the second sealing part 9213 .

Specifically, the first valve plug 911 also includes a cylindrical first connecting part 9112. The side surface of the first connecting part 9112 is spaced apart from the inner surface of the side wall of the first valve body 910. The first sealing part 9113 and the switching part 9111 are respectively It is provided at the upper and lower ends of the first connection part 9112. The lower end of the first pulling member 912 is connected to the upper side of the first sealing part 9113.

The first sealing part 9113 divides the interior of the first valve body 910 into two upper and lower spaces that are not connected to each other, so that water does not enter the space above the first sealing part 9113, thereby avoiding the upper end wall of the first valve body 910. Water leakage occurs at the position where the first traction member 912 passes through. At the same time, the installation environment of the first traction member 912 and the first elastic member 913 is a water-free environment, which can also prevent filter impurities such as lint in the water from entangling the first traction member 912 or the first elastic member 913, thereby affecting the first traction member 912 or the first elastic member 913. The problem of smooth movement of the valve plug 911 in the first valve body 910.

Similarly, the second valve plug 921 also includes a cylindrical second connecting part 9212, a second sealing part 9213 and a blocking part 9211 They are respectively provided at the upper and lower ends of the second connecting part 9212, and the lower end of the second traction member 922 is connected to the upper side of the second sealing part 9213.

The second sealing part 9213 divides the interior of the second valve body 920 into two upper and lower spaces that are not connected to each other, so that there is always no water in the space above the second sealing part 9213, which avoids the upper end wall of the second valve body 920 from being in the second space. Water leakage occurs at the position where the traction member 922 passes through. At the same time, the installation environment of the second traction member 922 and the second elastic member 923 is water-free, which prevents wire debris in the water from entangling the second traction member 922 or the second elastic member 923 and affecting the movement of the second valve plug 921 in the second valve. The problem of smooth movement in body 920.

The control valve assembly 900 of this embodiment also includes a casing 940. The casing 940 integrally covers the driving wheel 930, the first driven gear 914 and the second driven gear 924 inside, which can play a protective role.

In this embodiment, a control valve assembly 900 is provided inside the washing machine for controlling the waterway connection mode. The control valve assembly 900 only needs to control the rotation of the driving wheel 930. The driving wheel 930 can drive the first driven gear 914 and the second driven gear 914 on both sides. The driven gears 924 rotate respectively to control whether the water in the water tank 100 is transported to the filter device 600 or to the discharge pipe 250, and whether the sewage in the filter device 600 can be discharged through the sewage pipe 240. The cyclic filtration process and drainage process of the washing machine, as well as the sewage discharge process of the filter device 600 are all controlled by the same control valve assembly 900, which simplifies the internal water circuit structure of the washing machine, saves space, and reduces costs.

By only partially arranging the meshing teeth 931 on the outer periphery of the driving wheel 930, it can be realized that the driving wheel 930 can only drive one of the first driven gear 914 and the second driven gear 924 to rotate at the same time, and then the first valve plug 911 and the second driven gear 914 can rotate. The movements of the valve plugs 921 do not interfere with each other. The on and off of two different water paths in the washing machine are controlled by the same control structure, and the on and off states of the two are independent of each other. The control logic is simple and easy to implement.

Embodiment 2

As shown in FIGS. 1 to 4 , this embodiment is a further limitation of the above-mentioned Embodiment 1. The meshing teeth 931 cover a semicircular range along the outer circumference of the driving wheel 930 , and the tooth shape of the meshing teeth 931 is consistent with the first slave. The matching relationship between the tooth shapes of the driven gear 914 and the second driven gear 924 is such that the driving wheel 930 rotates for half a revolution and can drive the first driven gear 914 and the second driven gear 924 to rotate for one revolution through the meshing teeth 931 .

In this embodiment, when the first driven gear 914 or the second driven gear 924 rotates a complete circle, the corresponding first valve plug 911 or the second valve plug 921 can be driven to complete a complete up and down reciprocating motion. That is, the first valve plug 911 and the second valve plug 921 can reciprocate once from their respective initial positions and finally return to the initial position.

In the above solution, if the driving wheel 930 rotates half a circle, it can drive the first driven gear 914 or the second driven gear 924 to rotate one circle. When the control valve assembly 900 is working, each half rotation of the driving wheel 930 can be regarded as one working cycle. When the driving wheel When 930 continues to rotate in the same direction, the first valve plug 911 and the second valve plug 921 can be driven alternately. At the same time, even if the first elastic member 913 or the second elastic member 923 fails, the first valve plug 911 and the second valve plug 921 can be accurately reset without affecting the working effect of the control valve assembly 900 .

Embodiment 3

As shown in FIGS. 1 to 6 , this embodiment is a further limitation of the first or second embodiment above. The washing machine further includes a recovery device 500 connected to the sewage pipeline 240 .

Specifically, the outlet end of the sewage pipeline 240 is connected to the recovery device 500 , and the sewage discharged by the filter device 600 and carrying filtered impurities enters the recovery device 500 .

The main component of the filtered impurities is the clothing fibers that fall off when clothes are washed. With the popularity of chemical fiber fabrics, the shed clothing fibers contain a large amount of microplastics. When the microplastics enter the natural water environment, they will seriously harm the ecological environment and Human health.

In this embodiment, after the sewage carrying filtered impurities in the filtering device 600 is discharged from the sewage outlet 6103, it can enter the recovery device 500 and be collected, without being merged into the drainage water and directly discharged to the washing machine. Through the above method, it is avoided that the microplastics in the filtered impurities are discharged with the water flow and enter the ecological cycle, thereby causing harm to the ecological environment and human health.

The recycling device 500 in this implementation specifically includes:

Shell 510 has a recovery chamber inside;

The filter assembly 520 is disposed in the recovery chamber and divides the recovery chamber into a first chamber 531 and a second chamber 532 .

The sewage pipeline 240 is connected to the first chamber 531. The sewage carrying filtered impurities enters the first chamber 531, is filtered by the filter assembly 520, and then enters the second chamber 532. The filtered impurities are collected in the first chamber 531.

In the above solution, a filter assembly 520 is provided in the recovery device 500 to filter the sewage discharged from the filter device 600 and separate the filtered impurities therein from the water. The interior of the recovery device 500 is divided into a first chamber 531 and a second chamber 532 through the filter assembly 520. The filtered impurities in the sewage are blocked by the filter assembly 520, thereby collecting the filtered impurities on the filter assembly 520 in the first chamber 531. On the surface, the clean water obtained after filtration is collected in the second chamber 532. Users can directly collect and process the separated filter impurities, avoiding the situation where filter impurities are mixed in water and cannot be effectively processed.

Specifically, the filter assembly 520 can be a frame horizontally arranged at a certain height in the recovery chamber and a filter screen laid on the frame. After the sewage carrying filtered impurities enters the first chamber 531, the water can enter the second chamber through the filter assembly 520 In the chamber 532, the filtered impurities are blocked by the filter screen and remain on the upper surface of the filter assembly 520.

Specifically, the housing 510 of the recovery device 500 is disposed on the box 10 so as to be insertable/extractable, and the upper side of the housing 510 has an opening. When the user pulls out the housing 510 from the box 10 , the filter impurities adhering to the upper surface of the filter assembly 520 can be cleaned through the opening on the upper side of the housing 510 . The filter assembly 520 is preferably detachably connected to the housing 510. The user can detach the filter assembly 520 from the inside of the housing 510 and take it out for cleaning, which makes the operation more convenient.

In a preferred solution of this embodiment, a water outlet is provided on the second chamber 532 for discharging filtered clean water. By arranging a water outlet in the second chamber 532, the clean water entering the second chamber 532 can be discharged from the recovery device 500 in a timely manner, thus preventing the recovery device 500 from overflowing when a large amount of sewage is discharged from the filter device 600. Otherwise, the capacity of the second chamber 532 needs to be increased, that is, the volume of the recovery device 500 needs to be increased, causing it to occupy a larger space inside the washing machine, which is not conducive to miniaturization of the overall volume of the washing machine.

On the other hand, the water in the second chamber 532 can be automatically discharged from the water outlet. When the user cleans the recovery device 500, he only needs to clean the filter impurities on the filter assembly 520 without manually pouring out the water in the second chamber 532. Clear water. When the filter assembly 520 is detachably installed in the housing 510, the user does not even need to completely remove the housing 510 from the washing machine box 10, but only needs to take out the filter assembly 520 for cleaning, which is more convenient to operate.

In a preferred solution of this embodiment, the water outlet of the second chamber 532 is connected to the water cylinder 100 , and the water collected in the second chamber 532 is transported to the water cylinder 100 . For example, the water outlet of the second chamber 532 can be connected to the return water pipeline 230, or directly connected to the water tank 100 through the pipeline.

Since the sewage entering the recovery device 500 has been filtered by the filter assembly 520 in the recovery device 500, the filtered impurities have been removed, and the clean water collected in the second chamber 532 does not contain filtered impurities. By sending it into the water tank 100, this part of clean water can be reused, thereby reducing the amount of water required when the washing machine continues to operate, and achieving the purpose of saving water consumption of the washing machine.

In another preferred solution of this embodiment, the water outlet of the second chamber 532 may directly or indirectly lead to the outside of the washing machine. For example, the water outlet of the second chamber 532 is connected to the outer discharge pipe 250 through a pipeline, and the water collected in the second chamber 532 is discharged from the washing machine through the outer discharge pipe 250 .

Since the clean water collected in the second chamber 532 does not contain filtered impurities, discharging it directly will not cause the problem of microplastics entering the ecological cycle.

In this embodiment, by arranging a recycling device 500 inside the washing machine to receive the sewage discharged from the filtering device 600, the filtered impurities carried in the sewage can be collected, thereby preventing the microplastics in the filtered impurities from directly flowing into the drainage water flow and entering the ecological cycle. The problem.

Embodiment 4

As shown in Figures 1 to 5, this embodiment is a further limitation of the above-mentioned embodiment. Cleaning particles 680 are also provided in the filter cavity 610 for cleaning the inner wall of the filter cavity 610 and the outer wall of the filter mechanism 620 by friction and collision with the water flow.

In this embodiment, during the circulating filtration process, the cleaning particles 680 continuously rub against the inner wall of the filter cavity 610 and the outer wall of the filter mechanism 620 with the flowing water, causing the attached filter impurities to fall off, thereby preventing the filter impurities from being deposited too quickly and the filter mechanism. 620 is quickly covered by filter impurities, affecting the filtration efficiency. On the other hand, it also prevents the attached filter impurities from being too thick after the filtration is completed and being too firmly attached to the inner wall of the filter cavity 610 or the outer wall of the filter mechanism 620. When the drive mechanism 660 drives the filter mechanism 620 to rotate, the attached filter impurities are difficult to remove. Remove the problem.

In this embodiment, the shape of the cleaning particles 680 includes but is not limited to spherical, ellipsoidal, elliptical cylindrical, etc. shapes. The surface of the cleaning particles 680 may be a smooth surface or a non-smooth surface. It is preferred that the cleaning particles 680 have a non-smooth surface, which can increase the friction between the cleaning particles 680 and the inner wall of the filter cavity 610 and the outer wall of the filter mechanism 620, and achieve a better effect of peeling off filtered impurities.

The material of the cleaning particles 680 is preferably a wear-resistant elastic material to prevent the cleaning particles 680 from being easily worn during use. The resilience of the cleaning particles 680 is preferably 0% to 50%. The cleaning particles 680 are made of elastic materials that are easily deformed when subjected to force, which can prevent the cleaning particles 680 from getting stuck during the rotation of the filter mechanism 620 and even causing the filter device to be blocked. 600 damage.

In a further solution of this embodiment, a baffle 690 is provided in the filter cavity 610, the left side of the baffle 690 forms a first space, and the right side of the baffle 690 forms a second space. The water inlet 6101 and the cleaning particles 680 are located on the left side of the baffle 690 , and the filtered water outlet 6102 and the sewage outlet 6103 are located on the right side of the baffle 690 .

A number of water holes are provided on the baffle 690, and the water holes connect the first space and the second space, but the cleaning particles 680 are restricted in the first space by the baffle 690 and will not enter the second space. This avoids the cleaning particles 680 being discharged with the water flow from the filtered water outlet 6102 or the sewage outlet 6103, or accumulating at the filtered water outlet 6102 or the sewage outlet 6103 to cause blockage.

In a further solution of this embodiment, the density of the cleaning particles 680 is smaller than that of water. After the water flow enters the filter cavity 610, the cleaning particles 680 can float in the water, making it easier to be driven by the water flow in the first space of the filter cavity 610. Movement, resulting in friction and collision, causing the filtered impurities to fall off. This avoids the situation where the cleaning particles 680 are deposited at the bottom of the filter cavity 610 and cannot play an effective role when the impact force of the water flow is insufficient.

In a further solution of this embodiment, the filtering mechanism 620 includes a water outlet joint 621 extending along the rotation axis toward the filtered water outlet 6102. One end of the water outlet joint 621 is connected to the main body of the filtering mechanism 620 and is located on the left side of the baffle 690. One end passes through the baffle 690 and is rotatably inserted into the filtered water outlet 6102. A water supply and outlet joint 621 is provided on the baffle 690 The through hole passes through, and the through hole fits with the outer wall of the water outlet connector 621 with a clearance.

In the above solution, the filtered water inside the filtering mechanism 620 flows out through the water outlet joint 621. The outer wall of the water outlet joint 621 does not contact the inner wall of the through hole on the baffle 690, preventing the interaction between the baffle 690 and the water outlet joint 621 when the filtering mechanism 620 rotates. There is friction between them to generate resistance, which affects the smooth rotation of the filter mechanism 620.

In this embodiment, cleaning particles 680 are provided in the filter cavity 610. The cleaning particles 680 can rub against the inside of the filter cavity 610 and the outer wall of the filter mechanism 620 to prevent excessive deposition of filter impurities and improve the peeling off of filter impurities when the filter mechanism 620 rotates. efficiency, thereby improving the self-cleaning effect of the filter device 600.

The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed above in preferred embodiments, it is not intended to limit the present invention. Anyone familiar with the technology of this patent Without departing from the scope of the technical solution of the present invention, personnel can make some changes or modify the above-mentioned technical contents into equivalent embodiments with equivalent changes. In essence, any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the present invention.

Claims (10)

1. A washing machine including:

   water container;

   The circulating filter pipeline has its water inlet end and water outlet end connected to the water tank respectively;

   The filtering device is installed on the circulating filtering pipeline and has a water inlet, a filtered water outlet and a sewage outlet;

   The sewage pipeline is connected to the sewage outlet of the filter device;

   It is characterized in that it also includes a control valve assembly, and the control valve assembly includes:

   The first valve body is arranged between the water tank and the water inlet of the filter device, and has a first valve plug inside to control the connection between the water tank and the water inlet;

   The second valve body is arranged on the sewage pipeline, and has a second valve plug inside to control the opening and closing of the sewage pipeline;

   The driving member is selectively connected to the first valve plug and the second valve plug to drive one of the two to move.
2. The washing machine according to claim 1, wherein the control valve assembly further includes a first driven member connected to the first valve plug, and a second driven member connected to the second valve plug, and the driving member The first driven piece and the second driven piece are selectively driven to move.
3. The washing machine according to claim 2, wherein the first driven member includes a first driven gear, the second driven member includes a second driven gear, and the driving member includes a driving wheel, along which The outer periphery of the driving wheel is partially provided with meshing teeth, and the meshing teeth can mesh with both the first driven gear and the second driven gear;

   Preferably, the driving wheel is disposed between the first driven gear and the second driven gear, the rotation centers of the driving wheel, the first driven gear and the second driven gear are collinear, and the meshing teeth are along the The outer circumference of the driving wheel covers at most half the circumference.
4. The washing machine according to claim 3, wherein the first valve body is provided with a water inlet connected to the water tank and a circulating water outlet connected to the water inlet; the first valve plug is reciprocally arranged on the first Inside the valve body, the connection between the water inlet and the circulating water outlet is connected/disconnected; the control valve assembly also includes a first traction member, one end of the first traction member is connected to the first valve plug, and the other end is eccentric Connected to the first driven gear;

   And/or, the second valve body is provided with a sewage inlet and a sewage outlet, and the second valve plug is reciprocally disposed inside the second valve body to connect/disconnect the communication between the sewage inlet and the sewage outlet; The control valve assembly also includes a second traction member, one end of the second traction member is connected to the second valve plug, and the other end is eccentrically connected to the second driven gear.
5. The washing machine according to claim 4, wherein the washing machine further includes an external drainage pipeline for draining water to the outside, and the first valve body is further provided with a drainage outlet connected to the external drainage pipeline; the third valve body is further provided with a drainage outlet connected to the external drainage pipeline; A valve plug connects the water inlet and circulation Water outlet, the drainage outlet is blocked by the first valve plug; the first valve plug disconnects the water inlet and the circulating water outlet, and the drainage outlet and the water inlet are connected.
6. The washing machine according to claim 5, wherein the first valve body has a certain extension length along the movement direction of the first valve plug, the drainage outlet is provided on the end wall of the first valve body, and the inlet The water inlet and the circulating water outlet are arranged on the side wall of the first valve body; along the length extension direction of the first valve body, the water inlet is located between the circulating water outlet and the drainage outlet.
7. The washing machine according to any one of claims 4 to 6, characterized in that a first elastic member is further provided in the first valve body to maintain the first valve plug in a position connecting the water inlet and the circulating water outlet. ; And/or, a second elastic member is also provided in the second valve body to maintain the second valve plug in a position to disconnect the communication between the sewage inlet and the sewage outlet.
8. The washing machine according to any one of claims 4 to 7, characterized in that the first valve body has a certain extension length along the movement direction of the first valve plug, and the first traction member penetrates the end wall of the first valve body. Connected to the first driven gear; the first valve plug has a first sealing portion, and the first sealing portion is in slidable sealing contact with the inside of the side wall of the first valve body; the water inlet and the circulating water outlet are located at On the same side of the first sealing part, the first traction member is located on the other side of the first sealing part;

   And/or, the second valve body has a certain extension length along the movement direction of the second valve plug, and the second traction member penetrates the end wall of the second valve body and is connected to the second driven gear; the second valve plug has The second sealing part is in sliding sealing contact with the inside of the side wall of the second valve body; the sewage inlet and the sewage outlet are located on the same side of the second sealing part, and the second traction member Located on the other side of the second sealing part.
9. A control method for a washing machine according to any one of claims 1 to 8, characterized in that a circulation pump is provided on the circulation filtration pipeline, and the control method includes:

   In the initial state, the first valve plug connects the water tank and the water inlet, and the second valve plug cuts off the sewage pipe;

   The circulation pump is running, and the water in the water tank enters the filtering device through the first valve body for filtering, and the filtered water returns to the water tank;

   The driving part is drivingly connected to the first valve plug, driving the first valve plug to move, disconnecting the water container and the water inlet, and the water in the water container stops entering the filtering device;

   The driving member is drivingly connected to the second valve plug, driving the second valve plug to move, leading to the sewage pipeline, and sewage in the filtering device is discharged into the sewage pipeline.
10. The control method of a washing machine according to claim 9, characterized in that the washing machine further includes an external drainage pipeline for draining water to the outside, and the first valve body is provided with a water inlet communicating with the water tank, and is connected to the water inlet. Connected circulating water outlet port, and a drainage outlet connected to the external discharge pipeline; the first valve plug moves in the first valve body, so that the water inlet is selectively connected to the circulating water outlet and the drainage outlet;

    The control method also includes:

    In the initial state, the first valve plug connects the water inlet and circulating water outlet, and the second valve plug cuts off the sewage pipeline;

    The driving part is drivingly connected to the first valve plug, driving the first valve plug to move, connecting the water inlet and the drainage outlet, and the circulation pump runs. The water in the water tank enters the outer drain pipe through the first valve body and is discharged from the washing machine.