Filtering device and washing machine

Abstract

The application discloses a filtering device and a washing machine, and relates to the technical field of washing machines, in particular to a filtering device and a washing machine. The filtering device comprises a filtering cavity, a filtering mechanism and a blocking mechanism. The filtering cavity is provided with a water inlet, a filtered water outlet and a sewage outlet for discharging filtered impurities. The filtering mechanism is rotatably arranged in the filtering cavity and is used for filtering water entering the filtering cavity. The blocking mechanism is arranged in the filtering cavity and divides the filtering cavity into a first space and a second space. The water inlet is communicated with the first space, and the filtered water outlet and the sewage outlet are communicated with the second space. Cleaning particles are arranged in the first space of the filtering cavity and are used for rubbing and colliding with the inner wall of the filtering cavity and the outer wall of the filtering mechanism. In the application, the arrangement of the cleaning particles can prevent the deposition of filtered impurities in the filtering process and avoid the blocking of the filtering device. The blocking mechanism can prevent the cleaning particles from flowing out of the filtered water outlet or the sewage outlet with water flow, and can also prevent the cleaning particles from blocking the filtered water outlet or the sewage outlet.

Description

Technical Field

[0001] This invention belongs to the field of washing machine technology, specifically, it relates to a filtration device and a washing machine. Background Technology

[0002] Most washing machines are equipped with lint filters. During the wash cycle, the washing water circulates through the filter to remove lint, preventing it from adhering to the surface of washed clothes and affecting their cleanliness. However, these filters are typically installed inside the inner drum or drain pump. Over time, the filter can become clogged with lint and debris, reducing its effectiveness and potentially clogging the drain pump. Furthermore, accumulated lint and debris easily breed bacteria, requiring timely cleaning to prevent contamination of the wash water and secondary pollution of clothes, potentially impacting the user's health. However, most washing machines require users to remove the filter for manual cleaning, which is inconvenient.

[0003] On the other hand, some filters have relatively large pore sizes to prevent lint from clogging the filter holes. However, this can also cause some fine lint from clothing to remain unfiltered, sticking to the clothes and affecting the user experience. Furthermore, some of this fine lint is carried away by the water flow into the ecological cycle, ultimately impacting human health.

[0004] Chinese Patent Application No. 201310612183.8 discloses a filter and a washing machine. The filter includes a filter cylinder and a filter screen. The cylinder has an inlet, an outlet, and a drain outlet. The filter screen is installed inside the cylinder and divides the inner cavity of the filter cylinder into an inner cavity and an outer cavity. The upper end of the inner cavity is connected to the inlet, and the lower end is connected to the drain outlet. The outer cavity is connected to the outlet. Wastewater flows into the inner cavity from the inlet, is filtered by the filter screen, enters the outer cavity, and flows out through the outlet. Filtered impurities are discharged through the drain outlet.

[0005] While the above solutions, through the design of the filter screen structure, make it less likely for filtered impurities to stick to the screen and easier to discharge, they cannot completely achieve automatic filter cleaning, and manual cleaning by the user is still required when necessary. Furthermore, these solutions can only perform self-cleaning before and after circulating filtration; it is difficult to clean the inside of the filter device during the circulating filtration process. When there are many impurities such as lint in the water, they may cover the filter screen during filtration, severely affecting filtration efficiency.

[0006] In view of this, the present invention is hereby proposed. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a filtration device and a washing machine. The filtration device has cleaning particles in the filtration chamber. During the filtration process, the friction of the cleaning particles inside the filtration device can prevent the deposition of filter impurities and ensure filtration efficiency. At the same time, a blocking mechanism is provided in the filtration chamber to prevent the cleaning particles from entering the filtered water outlet and the drain outlet, preventing the cleaning particles from being discharged from the filtration chamber with the water flow, and also avoiding the situation where the cleaning particles clog the filtered water outlet or the drain outlet.

[0008] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0009] A filtration device, comprising:

[0010] The filter chamber has a water inlet, a filtered water outlet, and a drain outlet to discharge filtered impurities.

[0011] The filtration mechanism is rotatably installed inside the filtration chamber to filter the water entering the filtration chamber.

[0012] The filtration device further includes:

[0013] A blocking mechanism is installed inside the filter chamber, dividing the filter chamber into a first space and a second space. The water inlet is connected to the first space, and the filtered water outlet and the sewage outlet are connected to the second space.

[0014] The cleaning particles are placed in the first space inside the filter chamber and are used to clean the inner wall of the filter chamber and the outer wall of the filter mechanism by friction and collision with the water flow.

[0015] Furthermore, the blocking mechanism includes a baffle disposed inside the filter chamber, with the first space and the second space formed on both sides of the baffle respectively; a water-passing structure is provided on the baffle or between the baffle and the inner wall of the filter chamber for connecting the first space and the second space;

[0016] The water inlet and cleaning particles are located on one side of the baffle, and the filtered water outlet and sewage outlet are located on the other side of the baffle.

[0017] Furthermore, the water passage structure consists of a plurality of water passage holes disposed on the baffle; the width of the water passage holes is D1, the width of the cleaning particles is d, and D1 < d;

[0018] Alternatively, the outer periphery of the baffle is spaced apart from the inner wall of the filter chamber, and the water passage structure is the gap between the baffle and the inner wall of the filter chamber; the width of the gap is D2, the width of the cleaning particles is d, and D2 < d.

[0019] Furthermore, the density of the cleaning particles is less than that of water;

[0020] Preferably, the density of the cleaning particles is 0.3 to 0.9 times that of water, and more preferably 0.4 to 0.6 times.

[0021] Preferably, the water inlet is located in the upper region of the filter chamber, and the diameter of the water inlet is smaller than the width d of the cleaning particles.

[0022] Furthermore, the outer periphery of the filtered water outlet extends outward from the filter cavity to form a sealing support portion;

[0023] The filtration mechanism includes:

[0024] The filtration unit, located on the same side of the baffle as the water inlet, filters the water entering the first space.

[0025] The water outlet connector has one end connected to the filter section and the other end passing through the baffle and rotatably inserted into the sealing support section.

[0026] Preferably, a bearing is fitted onto the water outlet connector; a seal is provided on the side of the bearing facing the interior of the filter chamber, and the seal blocks the gap between the water outlet connector and the sealing support.

[0027] Furthermore, the baffle is provided with a through hole for the water outlet connector to pass through, and the through hole is clearance-fitted with the outer wall of the water outlet connector.

[0028] Furthermore, the orientation of both the water inlet and the sewage outlet is perpendicular to the axis of the filtration mechanism;

[0029] Preferably, the filter chamber has a columnar structure, the filtered water outlet is located on the end face of one end of the filter chamber, the drain outlet is located near the end where the filtered water outlet is located, and the inlet is located near the other end of the filter chamber.

[0030] Another object of the present invention is to provide a washing machine, comprising:

[0031] water container;

[0032] The circulating filtration pipeline has its inlet and outlet ends connected to a water container, and the filtration device described above is installed on it.

[0033] Furthermore, it also includes a recycling device connected to the drain outlet for collecting discharged filter impurities;

[0034] Preferably, the sewage outlet is connected to the recycling device through a sewage pipeline, and a sewage control valve for controlling the opening and closing of the sewage pipeline is installed on the sewage pipeline.

[0035] Furthermore, the recycling device includes:

[0036] The shell has an internal recovery chamber;

[0037] A filter assembly is disposed within the recovery chamber, dividing the recovery chamber into a first chamber and a second chamber;

[0038] The sewage outlet is connected to the first chamber. Sewage carrying filtered impurities enters the first chamber, is filtered by the filter assembly, and then enters the second chamber. The filtered impurities are collected in the first chamber.

[0039] Preferably, the second chamber is provided with a water outlet for discharging filtered clean water;

[0040] Preferably, the washing machine further includes a cabinet, and the water tank and the filter device are both disposed in the cabinet; the housing is insertable / removable on the cabinet.

[0041] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0042] In this invention, cleaning particles are placed inside the filter chamber. During the filtration process, these particles are carried by the water flow and continuously rub against and collide with the inner wall of the filter chamber and the outer wall of the filter mechanism, thereby achieving a cleaning effect, preventing the deposition of filtered impurities, and avoiding clogging of the filter device that would affect filtration efficiency. Simultaneously, a blocking mechanism prevents the cleaning particles from entering the second space with the water flow, thus preventing them from being discharged from the filtered water outlet or causing blockage of the filtered water outlet, affecting the flow of filtered water. After filtration, the filtered impurities accumulated during the filtration process can be discharged through the drain outlet with the water flow, but the cleaning particles, due to the presence of the blocking mechanism, will not be discharged from the drain outlet with the water flow, thus also preventing the drain outlet from being blocked by the cleaning particles during wastewater discharge.

[0043] In this invention, a baffle is installed in the filter chamber as a blocking mechanism. Water passage holes are provided on the baffle, or a gap is created between the baffle and the inner wall of the filter chamber to allow water flow. The cleaning particles are blocked by the baffle and cannot pass through. The structure is simple and effectively blocks the cleaning particles. Since the density of the cleaning particles is less than that of water, it is more conducive to the movement of the cleaning particles within the filter chamber by the water flow, preventing the cleaning particles from settling at the bottom of the filter chamber and thus achieving an effective cleaning effect.

[0044] In this invention, water in the water tank is driven to circulate along a circulating filtration pipeline, continuously passing through the filtration device on the pipeline to remove impurities such as lint, thereby reducing the lint content in the water tank and improving washing performance. The recycling device is connected to the drain outlet of the filter chamber, receiving wastewater carrying filtered impurities discharged from the filtration device. This prevents filtered impurities from directly flowing into the washing machine's drain water and being discharged externally, thus avoiding the possibility of fine lint entering the ecological cycle and harming human health.

[0045] In this invention, a filtration assembly is installed in the recycling device to filter the wastewater entering the recycling chamber, thereby separating the filtered impurities from the water and avoiding the situation where the filtered impurities mix with the water and are difficult to handle. At the same time, the filtered clean water can be poured into a water container for reuse or discharged into a drainage pipe without causing fine debris to affect the ecological environment.

[0046] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0047] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0048] Figure 1 This is a schematic diagram of the filter device installed in the washing machine according to Embodiment 1 of the present invention;

[0049] Figure 2 This is the present invention. Figure 1 Enlarged view of point A in the middle;

[0050] Figure 3 This is a schematic diagram of the baffle structure in Embodiment 1 of the present invention;

[0051] Figure 4 This is a schematic diagram of the washing machine performing a self-cleaning operation in Embodiment 1 of the present invention;

[0052] Figure 5 This is a schematic diagram of the washing machine performing a sewage discharge operation in Embodiment 1 of the present invention;

[0053] Figure 6 This is the present invention. Figure 5 Enlarged view of point B in the middle;

[0054] Figure 7 This is a schematic diagram of the filtration device in Embodiment 4 of the present invention;

[0055] Figure 8 This is the present invention. Figure 7 A schematic diagram of the CC section.

[0056] In the diagram: 10. Box body; 100. Water tank; 110. Window gasket; 210. Drainage pipe; 220. Circulation pipe; 230. Return water pipe; 231. Return water control valve; 240. Sewage pipe; 241. Sewage control valve; 250. External discharge pipe; 260. Water tank drain pipe; 270. Switching device; 400. Circulation pump; 500. Recovery device; 501. Filter impurities; 510. Shell; 520. Filter assembly; 531. First chamber; 532. Second chamber;

[0057] 600. Filter device; 601. First limiting surface; 602. Second limiting surface; 603. Third limiting surface; 604. Fourth limiting surface; 605. Fifth limiting surface; 606. Sixth limiting surface; 610. Filter chamber; 6101. Water inlet; 6102. Filtered water outlet; 6103. Sewage outlet; 6104. Mounting port; 611. Sealing support; 612. Sleeve; 613. Reinforcing rib; 620. Filter mechanism; 621. Water outlet connector; 622. Rotating support; 623. Filter screen support; 624. Motor mounting part; 625. Filter screen; 631. First bearing; 632. Second bearing; 641. First seal; 642. Second seal; 643. Third seal; 650. Filter chamber flange; 651. Connecting part; 652. Insertion part; 653. Through port; 660. Drive mechanism; 680. Cleaning particles; 690. Baffle; 691. Water passage hole; 692. Through hole.

[0058] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0060] In the description of this invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0061] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0062] Example 1

[0063] like Figures 1 to 6 As shown, this embodiment provides a filtration device 600, including:

[0064] The filter chamber 610 has a water inlet 6101, a filtered water outlet 6102, and a drain outlet 6103 for discharging filtered impurities 501.

[0065] The filter mechanism 620 is rotatably installed inside the filter chamber 610 to filter the water entering the filter chamber 610.

[0066] A blocking mechanism is installed inside the filter chamber 610, which divides the filter chamber 610 into a first space and a second space. The water inlet 6101 is connected to the first space, and the filtered water outlet 6102 and the sewage outlet 6103 are connected to the second space.

[0067] The cleaning particles 680 are located in the first space inside the filter chamber 610 and are used to clean the inner wall of the filter chamber 610 and the outer wall of the filter mechanism 620 by friction and collision with the water flow.

[0068] The filter device 600 of this embodiment can be installed in a washing machine to filter and remove lint carried in the washing water. The washing machine includes, but is not limited to, washing machines, cleaning machines, and dishwashers. This embodiment combines... Figures 1 to 6 The following explanation will be based on the example of a filter device 600 installed in a washing machine.

[0069] Specifically, the filtration mechanism 620 divides the interior of the filter chamber 610 into an outer cavity and an inner cavity. The water inlet 6101 on the filter chamber 610 communicates with the outer cavity. Water to be filtered in the washing machine's water tank 100 is delivered to the water inlet 6101 and then enters the outer cavity inside the filter chamber 610. The water in the outer cavity is filtered by the filtration mechanism 620 and then enters the inner cavity, before flowing out through the filtered water outlet 6102, which communicates with the inner cavity. Filtered impurities 501 in the water cannot pass through the filtration mechanism 620 and remain in the outer cavity.

[0070] The blocking mechanism divides the interior of the filter chamber 610 into a first space on the left and a second space on the right, with the main body of the filter mechanism 620 located in the first space. During filtration, the cleaning particles 680 in the first space continuously rub against the inner wall of the filter chamber 610 and the outer wall of the filter mechanism 620 with the flowing water, causing the attached filter impurities 501 to fall off, thereby preventing the deposition of filter impurities 501 and avoiding the filter mechanism 620 from being covered by filter impurities 501, which would affect filtration efficiency. On the other hand, it also avoids the problem that after filtration, the attached filter impurities 501 are too thick and adhere too firmly to the inner wall of the filter chamber 610 or the outer wall of the filter mechanism 620, making it difficult to remove the filter impurities 501 when cleaning the filter device 600 later. At the same time, the blocking mechanism prevents the cleaning particles 680 from entering the second space, thereby preventing the cleaning particles 680 from being discharged with the water flow through the filtered water outlet 6102 or accumulating at the filtered water outlet 6102 and causing blockage.

[0071] The filter mechanism 620 is connected to a drive mechanism 660, such as a motor, to drive the filter mechanism 620 to rotate within the filter chamber 610. When the filter device 600 needs cleaning, the drive mechanism 660 drives the filter mechanism 620 to rotate, agitating the water within the filter chamber 610. This causes the filtered impurities 501 on the outer wall of the filter mechanism 620 to be detached from the outer wall under the action of centrifugal force and the turbulent water flow, dissolving into the water within the filter chamber 610 and then being discharged from the filter chamber 610 through the drain port 6103. This achieves automatic cleaning of the filter device 600 without manual operation by the user, making it convenient to use.

[0072] During the above process, the cleaning particles 680 move within the filter chamber 610 under the influence of the turbulent water flow, rubbing against the inner wall of the filter chamber 610 and the outer wall of the filter mechanism 620. This improves the removal efficiency of the filtered impurities 501, resulting in better self-cleaning of the filter device 600. When the filtered impurities 501 are discharged, the water flow can be discharged through the drain port 6103 via the blocking mechanism. The cleaning particles 680 are blocked by the blocking mechanism and remain in the first space on the left side, preventing the cleaning particles 680 from being discharged with the water flow through the drain port 6103 or from clogging the drain port 6103 and affecting the wastewater discharge efficiency.

[0073] In this embodiment, the shape of the cleaning particles 680 includes, but is not limited to, spherical, ellipsoidal, and elliptical cylindrical shapes. The surface of the cleaning particles 680 can be smooth or non-smooth. Preferably, the cleaning particles 680 have non-smooth surfaces, which can increase the friction between them and the inner wall of the filter chamber 610 and the outer wall of the filter mechanism 620, resulting in a better effect in removing filtered impurities 501.

[0074] The cleaning particles 680 are preferably made of a wear-resistant elastic material to prevent them from easily wearing out during use. The resilience of the cleaning particles 680 is preferably 0% to 50%. The cleaning particles 680 are made of an elastic material that is easy to deform under stress, which can prevent the filter mechanism 620 from getting stuck with the cleaning particles 680 during rotation, or even damage to the filter device 600.

[0075] Even better, the cleaning particles 680 are made of wear-resistant, elastic, and antibacterial materials, such as copper ions and silver ions, which can also play a certain bactericidal role in the filtered water during the filtration process.

[0076] In a further embodiment, the blocking mechanism includes a baffle 690 disposed inside the filter chamber 610, forming the first space and the second space on the left and right sides of the baffle 690, respectively. The baffle 690 has a water-passing structure for connecting the first space and the second space.

[0077] 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 drain outlet 6103 are located on the right side of the baffle 690.

[0078] Furthermore, the outer periphery of the baffle 690 is fitted or nearly fitted to the inner wall of the filter chamber 610, and the water passage structure consists of a plurality of water passage holes 691 provided on the baffle 690. The width of the water passage hole 691 is D1, the width of the cleaning particles 680 is d, and D1 < d.

[0079] In this embodiment, the water passage 691 is a circular hole, and the width D1 of the water passage 691 is the diameter of the water passage 691. It can be understood that the water passage 691 can also be set to other shapes, such as square holes, strip holes, etc., in which case the minimum size of the water passage 691 in different directions is the width D1.

[0080] Similarly, for spherical cleaning particles 680, the width d of the cleaning particle 680 is the same as its diameter. For cleaning particles 680 of other shapes, since the dimensions of the cleaning particles 680 are not exactly the same in different directions, the smallest of the multiple different dimensions is the width d. This ensures that the cleaning particles 680 cannot pass through the water passage holes 691 on the baffle 690 no matter how they change direction, thus ensuring that the baffle 690 effectively blocks the cleaning particles 680.

[0081] In the above scheme, by setting a baffle 690 with a water hole 691 as a blocking mechanism, the water flow and the lint it carries can easily pass through, but the cleaning particles 680 can be effectively blocked by the baffle 690. The structure is simple and easy to implement.

[0082] In a preferred embodiment, a protruding positioning structure is provided on the inner wall of the filter chamber 610. This positioning structure is located on the left side of the baffle 690 and contacts the baffle 690, facilitating the positioning of the baffle 690 during installation and ensuring it is in a suitable position within the filter chamber 610. That is, the left side of the baffle 690 has sufficient space for installing the main body of the filter mechanism 620, while the filtered water outlet 6102 and the drain outlet 6103 are both located on the right side of the baffle 690.

[0083] In this embodiment, a protruding limiting structure can also be provided on the inner wall of the filter chamber 610. The limiting structure is located on the right side of the baffle 690 and contacts the baffle 690. Since the water flow in the filter chamber 610 tends to flow to the right, the limiting structure can prevent the baffle 690 from loosening under the impact of the water flow and shifting to the right, thereby preventing the drain outlet 6103 from directly communicating with the space where the cleaning particles 680 are located.

[0084] In a further embodiment, the density of the cleaning particles 680 is less than that of water. After the water flows into the filter chamber 610, the cleaning particles 680 can float in the water, making it easier for them to move within the first space of the filter chamber 610 under the influence of the water flow. This allows them to rub and collide with the inner wall of the filter chamber 610 and the outer wall of the filter mechanism 620, causing the filtered impurities 501 to fall off. This avoids the situation where the cleaning particles 680 settle at the bottom of the filter chamber 610 when the water flow impact force is insufficient, thus failing to achieve an effective cleaning effect.

[0085] In a preferred embodiment, the density of the cleaning particles 680 is 0.3 to 0.9 times that of water, preferably 0.4 to 0.6 times, so that the cleaning particles 680 can quickly float from the bottom to the surface and move with the water flow to clean the inside of the filter device 600.

[0086] In this embodiment, the water inlet 6101 is located in the upper region of the filter chamber 610. The water to be filtered enters the filter chamber 610 from top to bottom, exerting a greater impact force on the filter mechanism 620 and making it easier to penetrate the filter mechanism 620 to achieve filtration. When cleaning the filter device 600, the water flow entering the filter chamber 610 through the water inlet 6101 can also more forcefully flush the outer wall of the filter mechanism 620, which has an auxiliary effect on the removal of filtered impurities 501.

[0087] The diameter of the inlet 6101 is smaller than the width d of the cleaning particles 680, preventing the cleaning particles 680 from passing through the inlet 6101. This confines the movement of the cleaning particles 680 between the inlet 6101 and the baffle 690, preventing the cleaning particles 680 from floating in the water and moving from the inlet 6101 to the outside of the filter chamber 610 when the filter chamber 610 is full of water.

[0088] In a further embodiment, the outer periphery of the filtered water outlet 6102 extends outward from the filter cavity 610 to form a sealing support portion 611.

[0089] The filtration mechanism 620 includes:

[0090] The filter section, located on the same side of the baffle 690 as the water inlet 6101, filters the water entering the first space.

[0091] The water outlet connector 621 is connected to the filter section on the left end and passes through the baffle 690 on the right end, and is rotatably inserted into the sealing support section 611.

[0092] The baffle 690 is provided with a through hole 692 through which the water supply connector 621 passes, and the through hole 692 is clearance-fitted with the outer wall of the water supply connector 621.

[0093] In the above scheme, the water outlet connector 621 is rotatably and sealed to the sealing support 611, and the filtered water flows out through the water outlet connector 621. A through hole 692 is provided on the baffle 690, which is clearance-fitted with the outer wall of the water outlet connector 621. The outer wall of the water outlet connector 621 does not contact the inner wall of the through hole 692, so as to prevent friction between the baffle 690 and the water outlet connector 621 when the filtration mechanism 620 rotates, which would generate resistance and affect the smooth rotation of the filtration mechanism 620.

[0094] In this embodiment, the orientation of both the water inlet 6101 and the sewage outlet 6103 is perpendicular to the axis of the filter mechanism 620.

[0095] Specifically, the filter chamber 610 has a columnar structure, the filtered water outlet 6102 is located on the end face of the right end of the filter chamber 610, the drain outlet 6103 is located near the right end of the filter chamber 610 where the filtered water outlet 6102 is located, and the water inlet 6101 is located relatively near the left end of the filter chamber 610.

[0096] In the above scheme, the filtered water outlet 6102 and the sewage outlet 6103 need to be set on the same side of the baffle 690. Both are set in the right end area of ​​the filter chamber 610, while the water inlet 6101 is set relatively close to the left end, which makes it easier to install the baffle 690 and also helps to reserve a larger space on the left side of the baffle 690.

[0097] On the other hand, the inlet 6101 is positioned as far away from the outlet 621 as possible to fully utilize the area of ​​the filter section. The inlet 6101 and the outlet 6103 are arranged vertically and staggered axially within the filter chamber 610, which facilitates the full discharge of wastewater after cleaning the filter device 600 within the filter chamber 610. Simultaneously, the staggered arrangement of the inlet 6101 and outlet 6103 creates an axial water flow within the filter chamber 610, which also helps to move the cleaning particles 680 within the filter chamber 610 within its axial range, thereby thoroughly cleaning the filter impurities 501 adhering to the inside of the filter chamber 610.

[0098] This embodiment also provides a washing machine having the above-described filter device 600, comprising:

[0099] Water container 100;

[0100] The circulating filter pipeline has its inlet and outlet connected to the water tank 100, and a filter device 600 is installed on it.

[0101] Specifically, a circulation pump 400 is installed between the water inlet of the circulating filter pipe and the water inlet 6101 of the filter device 600. When the circulation pump 400 is turned on, water in the water tank 100 is drawn into the circulating filter pipe, flows along the circulating filter pipe, and is filtered by the filter device 600. The filtered water then returns to the water tank 100. During the washing / rinsing process of the washing machine, the water in the water tank 100 is continuously driven by the circulation pump 400 to pass through the filter device 600, which can reduce the lint content in the water in the water tank 100 and improve the washing effect.

[0102] In this embodiment, the filter device 600 is installed horizontally in the washing machine, that is, the axial direction of the filter mechanism 620 is parallel to the horizontal direction.

[0103] In a further embodiment, a T-junction is provided between the outlet of the circulation pump 400 and the outlet of the circulation filter pipe, the T-junction being connected to the external drain pipe 250 for draining water to the outside of the washing machine. The filter device 600 is disposed between the T-junction and the outlet of the circulation filter pipe.

[0104] Furthermore, the three-way structure is a switching device 270 that controls the connection between the filter device 600 and the external discharge pipe 250 and the outlet end of the circulation pump 400, comprising:

[0105] The inlet is connected to the outlet of the circulating pump 400;

[0106] The first water outlet is connected to the filter device 600;

[0107] The second outlet is connected to the external drainage pipe 250.

[0108] The switching mechanism controls the first and second water outlets to connect with the water inlet.

[0109] Specifically, the circulating filtration pipeline includes:

[0110] The drain pipe 260 of the water tank connects the water tank 100 to the inlet of the circulating pump 400;

[0111] The drain pipe 210 is connected at one end to the outlet of the circulating pump 400 and at the other end to the inlet of the switching device 270.

[0112] The circulation pipeline 220 is connected at one end to the first outlet of the switching device 270 and at the other end to the inlet 6101 of the filter device 600.

[0113] The return water pipe 230 is connected at one end to the filtered water outlet 6102 of the filter device 600 and at the other end to the water tank 100, so as to transport the filtered water to the water tank 100.

[0114] The inlet of the external drain pipe 250 is connected to the second outlet of the switching device 270, and the outlet extends to the outside of the washing machine.

[0115] In detail, the filter device 600 is located above the water tank 100, and the circulation pipe 220 and the return water pipe 230 are also located above the water tank 100. The outlet end of the return water pipe 230 is connected to the window gasket 110, thereby achieving communication with the water tank 100. The circulation pump 400 is located below the water tank 100 and is connected to the water tank 100 through the water tank drain pipe 260. Under the action of the circulation pump 400, the water in the water tank 100 is pumped out and transported from bottom to top along the drain pipe 210 to the switching device 270.

[0116] In the above scheme, by setting the switching device 270, either the filter device 600 or the external discharge pipe 250 is selectively connected to the circulation pump 400. For example... Figure 1 As shown, at this time, the switching mechanism connects the inlet and the first outlet, that is, the circulation pump 400 and the filter device 600 are connected. Under the action of the circulation pump 400, the water in the water tank 100 flows along the circulation filter pipeline and is filtered by the filter device 600. Figure 5 As shown, at this time, the switching mechanism connects the water inlet and the second water outlet, that is, the circulation pump 400 is connected to the external drain pipe 250. Under the action of the circulation pump 400, the washing water in the water tank 100 is drawn out through the water tank drain pipe 260, and then through the drain pipe 210, and finally delivered to the external drain pipe 250 to be discharged from the washing machine.

[0117] With the above configuration, the washing machine does not need two independent water paths for circulating, filtering, and draining the washing water, nor does it require separate drain and circulation pumps. By simply switching the connection between the pipes using the switching device 270, both draining and circulating / filtering the washing water can be achieved using a single circulation pump 400. This simplifies the internal piping structure of the washing machine, saves space occupied by the piping, and reduces production costs by using only one circulation pump 400.

[0118] In this embodiment, a return water inlet can also be opened on the wall of the water container, and the outlet end of the return water pipe is connected to the return water inlet to directly return water to the water container.

[0119] The washing machine in this embodiment also includes a main water inlet pipe for connecting an external water source to a water tank. The outlet of the return water pipe can also be connected to the main water inlet pipe, for example, to a detergent dispenser located on the main water inlet pipe. The filtered water returns to the water tank through the detergent dispenser.

[0120] In a further embodiment, the washing machine also includes a recycling device 500, which is connected to the drain outlet 6103 and is used to collect the discharged filter impurities 501.

[0121] In the above solution, a recycling device 500 collects the filtered impurities 501 discharged from the filter device 600, preventing them from entering the drain water and being discharged from the washing machine. This method avoids the fine lint in the filtered impurities 501 being carried away by the water flow and entering the ecological cycle, thus preventing harm to the ecological environment and human health.

[0122] In a preferred embodiment, the sewage outlet 6103 is connected to the recycling device 500 through a sewage pipe 240, and a sewage control valve 241 is provided on the sewage pipe 240 to control the opening and closing of the sewage pipe 240.

[0123] Meanwhile, a return water control valve 231 is also installed on the return water pipe 230 to control the opening and closing of the return water pipe 230, thereby realizing the control of the opening and closing of the circulating filter pipe.

[0124] In the above scheme, when the washing water in the water tank 100 is circulated and filtered, the return water control valve 231 opens to connect the return water pipe 230, and the drain control valve 241 closes to cut off the drain pipe 240. Under the action of the circulation pump 400, the washing water passes sequentially through the water tank drain pipe 260, drain pipe 210, circulation pipe 220, and filter device 600, and finally returns to the water tank 100 through the return water pipe 230. When it is necessary to remove the filter impurities 501 remaining in the filter device 600, the return water control valve 231 closes to cut off the return water pipe 230, and the washing water cannot flow out from the filter water outlet 6102. At the same time, the drain control valve 241 opens to connect the drain pipe 240, which can ensure that all the water entering the filter device 600 flows out from the drain port 6103, and fully remove the filter impurities 501 from the filter device 600.

[0125] In the specific implementation of this embodiment, the recycling device 500 includes:

[0126] The housing 510 has a recovery chamber inside;

[0127] A filter assembly 520 is disposed in the recovery chamber, dividing the recovery chamber into a first chamber 531 and a second chamber 532.

[0128] The sewage outlet 6103 is connected to the first chamber 531. Sewage carrying filter impurities 501 enters the first chamber 531, is filtered by the filter assembly 520, and then enters the second chamber 532. The filter impurities 501 are collected in the first chamber 531.

[0129] Specifically, the filter assembly 520 can be a frame horizontally positioned at a certain height within the recovery chamber and a filter screen laid on the frame. After the wastewater carrying the filtered impurities 501 enters the first chamber 531, the water can pass through the filter assembly 520 into the second chamber 532. The filtered impurities 501 are blocked by the filter screen and remain on the upper surface of the filter assembly 520.

[0130] In the above scheme, the recycling device 500 is equipped with a filter assembly 520 for filtering the received wastewater and separating the filter impurities 501 from the water. The filter assembly 520 divides the interior of the recycling device 500 into a first chamber 531 and a second chamber 532. The filter impurities 501 in the wastewater are blocked by the filter assembly 520, thereby collecting the filter impurities 501 on the upper surface of the filter assembly 520 in the first chamber 531. The filtered clean water is collected in the second chamber 532. The user can directly collect and process the separated filter impurities 501, avoiding the situation where the filter impurities 501 are dispersed in the water and difficult to process.

[0131] In this embodiment, the washing machine also includes a cabinet 10, a water tank 100, and a filter device 600, all of which are disposed inside the cabinet 10. A removable housing 510 is mounted on the cabinet 10, allowing the user to remove the housing 510 from the cabinet 10 for internal cleaning.

[0132] Specifically, the upper side of the housing 510 has an opening, allowing the user to clean the filter impurities 501 adhering to the upper surface of the filter assembly 520 by pulling the housing 510 out of the housing 10. Preferably, the filter assembly 520 is detachably connected to the housing 510, allowing the user to remove the filter assembly 520 from inside the housing 510 for cleaning, making the operation more convenient.

[0133] In a preferred embodiment, a water outlet is provided on the second chamber 532 for discharging filtered clean water. By providing a water outlet on the second chamber 532, the clean water entering the second chamber 532 can be promptly discharged from the recovery device 500, preventing overflow of the recovery device 500 when a large amount of wastewater is discharged from the filtration device 600. Otherwise, the capacity of the second chamber 532 would need to be increased, which would require a larger overall volume of the recovery device 500, resulting in it occupying a large space inside the washing machine and hindering the miniaturization of the overall washing machine.

[0134] On the other hand, the water in the second chamber 532 can be automatically discharged from the outlet. When cleaning the recycling device 500, the user only needs to clean the filter impurities 501 on the filter assembly 520, without having to manually pour out the clean water in the second chamber 532. 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's cabinet 10; they only need to remove the filter assembly 520 for cleaning, making operation more convenient.

[0135] In this embodiment, the washing machine performs a circulating filtration operation, a self-cleaning operation, and a sewage discharge operation during the washing program.

[0136] Specifically, such as Figure 1 and Figure 2 As shown, the circulating filtration operation includes: switching device 270 connecting drain pipe 210 and circulating pipe 220, closing drain control valve 241, and simultaneously opening return water control valve 231 to connect return water pipe 230; starting circulating pump 400 to introduce water from water tank 100 into circulating filtration pipe, where it passes through filtration device 600 to remove impurities and then returns to water tank 100. During this process, cleaning particles 680 move with the water flow in filtration chamber 610, continuously rubbing against the inner wall of filtration chamber 610 and the outer wall of filtration mechanism 620 to prevent impurities from depositing.

[0137] like Figure 4As shown, the self-cleaning operation includes: closing the return water control valve 231, opening the drain control valve 241 to connect the drain pipe 240, starting the circulation pump 400, introducing water from the water tank 100 into the filter device 600, cleaning the filter device 600, and then discharging it into the recovery device 500. It also includes: controlling the drive mechanism 660 to drive the filter mechanism 620 to rotate within the filter chamber 610. During this process, the cleaning particles 680 move with the water flow, rubbing against the inner wall of the filter chamber 610 and the outer wall of the filter mechanism 620, assisting in the removal of impurities.

[0138] like Figure 5 and Figure 6 As shown, the sewage discharge operation includes: closing the return water control valve 231 and opening the sewage discharge control valve 241 to connect the sewage discharge pipe 240, discharging the sewage carrying the filtered impurities 501 from the filter device 600 into the recovery device 500. During the sewage discharge operation, the drive mechanism 660 can be opened to drive the filter mechanism 620 to rotate, or the drive mechanism 660 can be left closed, keeping the filter mechanism 620 stationary within the filter chamber 610. In this process, the discharge of sewage lowers the water level in the filter chamber 610, causing the cleaning particles 680 to gradually sink and be blocked by the baffle 690, ultimately settling at the bottom of the filter chamber 610.

[0139] In this embodiment, the cyclic filtration operation is performed during the washing phase and one or more rinsing phases of the washing program, and the self-cleaning operation and / or sewage discharge operation are performed at least once in a complete washing program. Preferably, the self-cleaning operation and sewage discharge operation are performed at the end of the washing phase and each rinsing phase.

[0140] Specifically, after a certain period of water intake during the washing and rinsing stages, the circulation pump 400 is activated to begin the circulation filtration operation. This circulation filtration operation continues until the washing or rinsing stage is nearing completion and drainage is imminent. At this point, the return water control valve 231 is closed, the drain control valve 241 is opened, and the drive mechanism 660 is activated to perform a self-cleaning operation. After the self-cleaning operation continues for a certain period, the washing machine then performs a drain operation.

[0141] In detail, after the washing machine starts filling with water, it detects the water level in the water tank 100. When the water level reaches the preset level, the circulation pump 400 is activated to begin the circulation and filtration operation. This prevents the circulation pump 400 from drawing in air and generating operating noise if the water level in the water tank 100 is too low. Simultaneously with the wastewater discharge operation, the washing machine also controls the switching device 270 to connect the drain pipe 210 and the external drain pipe 250, allowing the circulation pump 400 to continue running and draining the remaining water from the water tank 100. This simultaneous wastewater discharge and water draining operation improves the washing machine's efficiency.

[0142] In this embodiment, the washing machine is equipped with a filter device 600, which circulates and filters the water in the water tank 100 during washing machine operation, reducing the content of lint in the water and improving the washing effect. The filter device 600 is self-cleaning, thereby discharging the filter impurities 501 remaining inside the filter device 600 without requiring the user to remove the filter device 600 from the washing machine for manual cleaning, making it convenient to use.

[0143] The filter device 600 incorporates cleaning particles 680, which move with the water flow to prevent the deposition of filtered impurities 501 inside the filter chamber 610, thus improving the cleaning efficiency of the filtered impurities 501. A baffle 690 is installed inside the filter chamber 610, separating the cleaning particles 680 from the filtered water outlet 6102 and the drain outlet 6103 on both sides of the baffle 690. The baffle 690 has water passage holes 691 that allow water flow and filtered impurities 501 such as lint to pass through. Water in the filter chamber 610 can pass through the water passage holes 691 on the baffle 690 and exit from the filtered water outlet 6102 or the drain outlet 6103. The cleaning particles 680 are blocked by the baffle 690 and cannot pass through, thus preventing them from being discharged with the water flow from the filtered water outlet 6102 or the drain outlet 6103. This also prevents the cleaning particles 680 from accumulating at the filtered water outlet 6102 or the drain outlet 6103 and causing blockages.

[0144] Example 2

[0145] The difference between this embodiment and the first embodiment above is that the water-passing structure is located between the baffle and the inner wall of the filter chamber.

[0146] Specifically, the outer periphery of the baffle is spaced apart from the inner wall of the filter chamber, and the water-passing structure is the gap between the baffle and the inner wall of the filter chamber. The width of the gap is D2, and the width of the cleaning particles is d, where D2 < d.

[0147] Specifically, there is a gap of width D2 between the lower edge of the baffle and the inner wall of the filter chamber. Water and the lint it carries can pass through this gap and then be discharged from the drain port on the filter chamber. Cleaning particles larger than the width of the gap cannot pass through and are therefore blocked by the baffle. They will not be discharged with the water flow from the filtered water outlet or drain port, or they will accumulate at the filtered water outlet or drain port, causing blockage and affecting the normal discharge of water.

[0148] Compared with Embodiment 1 above, this embodiment only changes the structure of the baffle, and can also effectively block the washing particles, achieving a similar effect to Embodiment 1.

[0149] Example 3

[0150] This embodiment provides a washing machine, which differs from the first embodiment above in that the filter device is installed vertically in the washing machine, that is, the filter mechanism is set vertically in the axial direction.

[0151] Specifically, the water outlet on the filter chamber is vertically downward, and the inlet and outlet face opposite directions and are both parallel to the horizontal. Preferably, the inlet is positioned higher than the outlet to fully discharge any remaining filter impurities, preventing bacterial growth and contamination of the washing water. A baffle is located in the lower part of the filter chamber. When water is discharged, cleaning particles settle on the upper surface of the baffle, preventing them from being discharged with the water flow and from clogging the water outlet or outlet.

[0152] In this embodiment, the other structures and control methods of the washing machine are the same as in Embodiment 1, and have similar effects as in Embodiment 1.

[0153] Example 4

[0154] like Figure 7 and Figure 8 As shown, this embodiment is a further limitation of the filter device 600 (baffle not shown in the figure) in the first embodiment above. A first bearing 631 is sleeved on the water outlet connector 621. A first sealing member 641 is provided on the side of the first bearing 631 facing the inside of the filter cavity 610. The first sealing member 641 blocks the gap between the water outlet connector 621 and the sealing support part 611.

[0155] In the above scheme, a first bearing 631 is provided between the water outlet connector 621 and the sealing support part 611 to support the water outlet connector 621, making the rotation of the water outlet connector 621 within the sealing support part 611 smoother and ensuring structural stability, thus guaranteeing the stable rotation of the filter mechanism 620 within the filter chamber 610. A first seal 641 is provided on the right side of the first bearing 631, preventing washing water in the filter chamber 610 from entering the gap between the water outlet connector 621 and the sealing support part 611, preventing the first bearing 631 from contacting water, avoiding failure of the first bearing 631, and ensuring the effective functioning of the first bearing 631. At the same time, the first seal 641 also prevents unfiltered washing water from flowing out of the filtered water outlet 6102 through the sealing support part 611, which would affect the removal efficiency of the filter device 600 for lint and other filter impurities.

[0156] In the specific embodiment, the first sealing member 641 is sleeved on the water outlet connector 621, the inner wall of the first sealing member 641 is sealed to the outer wall of the water outlet connector 621, and the outer wall of the first sealing member 641 is rotatably sealed to the inner wall of the sealing support part 611.

[0157] In a further embodiment, the filter device 600 further includes a second seal 642, which is disposed on the side of the first bearing 631 facing away from the inside of the filter cavity 610, and blocks the gap between the water outlet connector 621 and the sealing support 611.

[0158] Specifically, the second sealing element 642 is sleeved on the water outlet connector 621, the inner wall of the second sealing element 642 is sealed to the outer wall of the water outlet connector 621, and the outer wall of the second sealing element 642 is rotatably sealed to the inner wall of the sealing support part 611.

[0159] In the above design, a second seal 642 is also provided on the left side of the first bearing 631. Water flowing out through the water outlet 621 can be blocked by the second seal 642 and will not come into contact with the first bearing 631. The first bearing 631 is located between the first seal 641 and the second seal 642, which ensures that the installation environment of the first bearing 631 is water-free to the greatest extent, avoiding rusting of the first bearing 631 when it comes into contact with water, and preventing it from affecting the smooth rotation of the filter mechanism 620.

[0160] In a further embodiment, the inner wall of the sealing support 611 has a stepped structure, and a first limiting surface 601, a second limiting surface 602, and a third limiting surface 603 with an annular structure and gradually decreasing inner diameter are formed sequentially from one end of the sealing support 611 to the outside of the filter cavity 610.

[0161] The surface of the first seal 641 facing the outside of the filter cavity 610 abuts against the first limiting surface 601, the surface of the first bearing 631 facing the outside of the filter cavity 610 abuts against the second limiting surface 602, and the surface of the second seal 642 facing the outside of the filter cavity 610 abuts against the third limiting surface 603.

[0162] In the above scheme, multiple vertical annular limiting surfaces are formed on the inner wall of the stepped sealing support 611, which respectively abut against the left side surfaces of the first seal 641, the first bearing 631 and the second seal 642. This restricts the movement of the above three components in the axial direction of the water outlet connector 621 and prevents the mating structure between the water outlet connector 621 and the sealing support 611 from loosening during the rotation of the filter mechanism 620.

[0163] In a preferred embodiment, the outer diameter of the end of the water outlet connector 621 near the outside of the filter chamber 610 is smaller than the outer diameter of the other end. A fourth limiting surface 604 with an annular structure and perpendicular to the axis of the water outlet connector 621 is formed on the outer wall of the water outlet connector 621. The surface of the first bearing 631 facing the inside of the filter chamber 610 abuts against the fourth limiting surface 604.

[0164] By setting the outer diameter of the left end of the water outlet connector 621 to be smaller than that of the right end, a fourth limiting surface 604 facing to the left is formed at the abrupt change in outer diameter, which abuts against the right side surface of the first bearing 631. In this way, the first bearing 631 has limiting structures on both sides, making the structure more stable.

[0165] In this embodiment, the end of the sealing support 611 away from the filter chamber 610, that is, the left end of the sealing support 611, is connected to the filter chamber flange 650. The filter chamber flange 650 has a through-hole 653 in the middle that communicates with the water outlet connector 621. The outer periphery of the through-hole 653 extends away from the sealing support 611 to form a connecting part 651.

[0166] Preferably, the surface of the filter chamber flange 650 facing the sealing support 611 has a protruding insertion portion 652, which is inserted into the opening at the left end of the sealing support 611.

[0167] In the above solution, the left end of the sealing support 611 is connected to the filter chamber flange 650, and a connecting part 651 is formed on the filter chamber flange 650. The outer diameter of the connecting part 651 is smaller than the outer diameter of the sealing support 611, and the inner diameter of the connecting part 651 is preferably equal to the inner diameter of the water outlet connector 621. When the filter device 600 is installed in the washing machine, it is connected to the return water pipe through the connecting part 651. Compared with the method of directly connecting the return water pipe to the left end of the sealing support 611, the installation is easier.

[0168] The filter chamber flange 650 has a plug-in portion 652 on the right side, which is inserted into the left end opening of the sealing support portion 611, facilitating the positioning of the filter chamber flange 650 and the sealing support portion 611 during assembly. Several fixing portions are respectively provided on the outer periphery of the filter chamber flange 650 and the sealing support portion 611, and the filter chamber flange 650 and the sealing support portion 611 are fixed by screws passing through the fixing portions.

[0169] In a further embodiment, the outer wall of the sealing support 611 is provided with a reinforcing rib 613 extending radially along the sealing support 611, and the reinforcing rib 613 is connected to the surface of the filter water outlet 6102 on the filter chamber 610.

[0170] Since the sealing support 611 extends a certain length from the left end face of the filter chamber 610, the reinforcing rib 613 provides external support to its peripheral sidewall, ensuring the strength of the sealing support 611.

[0171] In this embodiment, the filtration mechanism 620 includes a filter support and a filter 625. The filter support specifically includes:

[0172] The filter support 623 is located inside the filter chamber 610, and the filter 625 covers the surface of the filter support 623. The filter support 623 and the filter 625 together constitute the filter.

[0173] The water outlet connector 621 is located at the left end of the filter screen support 623 and is rotatably inserted into the sealing support 611.

[0174] The rotating support part 622 is located at the right end of the filter support part 623 and is rotatably connected to the filter chamber 610.

[0175] In a further embodiment, the rotating support portion 622 at the right end of the filter mechanism 620 extends outward from the filter cavity 610 along its rotation axis, and the filter cavity 610 is provided with a mounting port 6104 through which the rotating support portion 622 passes. The rotating support portion 622 and the mounting port 6104 are rotatably and sealingly connected.

[0176] The rotating support part 622 is used to connect the drive mechanism that drives the filter mechanism 620 to rotate. The rotating support part 622 extends from the right end of the filter chamber 610, and a motor mounting part 624 is provided at the right end of the rotating support part 622 for connecting with the drive mechanism. This allows the drive mechanism to be placed outside the filter chamber 610 to avoid contact with water.

[0177] Furthermore, the outer periphery of the mounting port 6104 extends outward from the filter cavity 610 along the axis of the rotating support portion 622 to form a sleeve portion 612, and a third sealing member 643 is fitted onto the rotating support portion 622. The inner wall of the third sealing member 643 is sealed to the outer wall of the rotating support portion 622, and the outer wall of the third sealing member 643 is rotatably sealed to the inner wall of the sleeve portion 612.

[0178] A second bearing 632 is also provided between the sleeve portion 612 and the rotating support portion 622. The second bearing 632 is sleeved on the rotating support portion 622 and is located on the side of the third seal 643 facing the outside of the filter chamber 610.

[0179] In the above design, the third seal 643 prevents water in the filter chamber 610 from leaking out of the mounting port 6104, and the second bearing 632 supports the rotating support 622, ensuring smoother relative rotation between the rotating support 622 and the sleeve 612. The second bearing 632 is located on the right side of the third seal 643, preventing contact with water in the filter chamber 610 and thus avoiding failure.

[0180] In a preferred embodiment, the inner diameter of the sleeve portion 612 near the outside of the filter chamber 610 is smaller than the inner diameter of the other end. A fifth limiting surface 605 with an annular structure is formed on the inner wall of the sleeve portion 612 and is perpendicular to the axis of the rotating support portion 622. The surface of the third sealing member 643 facing the outside of the filter chamber 610 abuts against the fifth limiting surface 605.

[0181] The outer diameter of the rotating support 622 near the outside of the filter chamber 610 is smaller than that of the other end. A sixth limiting surface 606 with an annular structure and perpendicular to the axis of the rotating support 622 is formed on the outer wall of the rotating support 622. The surface of the second bearing 632 facing the inside of the filter chamber 610 abuts against the sixth limiting surface 606.

[0182] In the above design, the inner diameter of the right end of the sleeve portion 612 is smaller than that of the left end, and a fifth limiting surface 605 facing left is formed at the abrupt change in its inner diameter, abutting against the right side surface of the third seal 643. The outer diameter of the right end of the rotating support portion 622 is smaller than that of the left end, and a sixth limiting surface 606 facing right is formed at the abrupt change in its outer diameter, abutting against the left side surface of the second bearing 632. This structure restricts the axial movement of the third seal 643 and the second bearing 632 in the rotating support portion 622, resulting in structural stability.

[0183] Furthermore, the cross-sectional area of ​​the central region of the filter support 623 is fixed, and its left and right ends have tapered structures, so that the local surface of the filter 625 is inclined, which is conducive to the shedding of attached lint.

[0184] In this embodiment, the filter mechanism 620 is supported at both ends by a first bearing 631 and a second bearing 632, respectively, ensuring smooth and stable rotation of the filter mechanism 620 within the filter cavity 610. Simultaneously, the placement of the first seal 641, the second seal 642, and the third seal 643 maximizes the protection of the first bearing 631 and the second bearing 632 within a water-free environment, preventing contact with water and thus avoiding their failure.

[0185] Example 5

[0186] like Figure 1 and Figure 2 As shown, this embodiment provides a control method for a washing machine as described in Embodiment 1 above, used to fully discharge sewage from the filter device 600.

[0187] Specifically, the control method includes:

[0188] Turn on the circulation pump 400, open the circulation filter pipe, and the washing machine will perform circulation filtration and rinsing.

[0189] After rinsing is complete, turn off the circulation pump at 400.

[0190] Turn on the drive mechanism 660 to drive the filter mechanism 620 to rotate inside the filter chamber 610;

[0191] When the first set condition is met, start the circulation pump 400 and at the same time open the sewage control valve 241 to open the sewage pipe 240.

[0192] Once the second set condition is met, the circulating filter pipeline will be shut off.

[0193] Preferably, after the first set condition is met, the drive mechanism 660 remains open, driving the filter mechanism 620 to rotate continuously.

[0194] In this embodiment, the circulating filtration pipeline includes: a switching device 270 connecting the outlet of the filtration device 600 and the circulating pump 400, and opening the return water control valve 231 to connect the return water pipeline 230. The circulating filtration pipeline is cut off by: the switching device 270 connecting the external discharge pipeline 250 and the outlet of the circulating pump 400.

[0195] It is understandable that the aforementioned disconnection of the circulating filter pipeline can also be achieved by shutting down the circulating pump 400.

[0196] In the above scheme, the washing machine circulates and filters the rinsing water during the rinsing process, and the filtration device 600 and the circulating filtration pipeline are always filled with rinsing water.

[0197] After rinsing is completed and the circulation pump 400 is turned off, the water in the drain pipe 210 and the circulation pipe 220 flows back downwards under gravity, up to a point where the water level in the drain pipe 210 is level with the water level in the water tank 100. The pipes above the water level up to the filter device 600 are filled with air. However, the filter device 600 is lower than the circulation pipe 220, so the water in it will not flow back through the circulation pipe 220. Turning off the circulation pump 400 also closes the return water control valve 231, and at this time, the drain control valve 241 is closed. The water inside the filter device 600 remains in the filter chamber 610 and will not be discharged.

[0198] After the drive mechanism 660 is activated, it drives the filter mechanism 620 to rotate at high speed, causing the lint and other filter impurities attached to the surface to peel off from the surface of the filter mechanism 620 under centrifugal force. At this time, since both the return water control valve 231 and the drain control valve 241 are closed, the water in the filter chamber 610 does not flow out. The high-speed rotating filter mechanism 620 can also agitate the water flow in the filter chamber 610, and the resulting turbulent water flow exerts a certain impact force on the surface of the filter mechanism 620. At the same time, it also drives the cleaning particles 680 to move and rub against the inner wall of the filter chamber 610 and the outer wall of the filter mechanism 620, further enhancing the shedding of lint. The lint and other filter impurities peeled off from the surface of the filter mechanism 620 are incorporated into the water in the filter chamber 610.

[0199] Simultaneously with starting the circulation pump 400, the drain control valve 241 is also opened, opening the drain pipe 240. Wastewater in the filter device 600 can be discharged from the drain port 6103, while cleaning particles 680 are blocked by the baffle 690 and remain inside the filter chamber 610. The activation of the circulation pump 400 forces air from the drain pipe 210 and circulation pipe 220 into the filter device 600, thereby completely discharging the wastewater carrying lint from the filter device 600 through the drain port 6103 under air pressure. This prevents wastewater residue in the filter device 600 and ensures effective cleaning. The drain control valve 241 opens simultaneously with the circulation pump 400, ensuring the pressure generated when air enters the filter device 600, thus guaranteeing the full discharge of wastewater from the filter device 600.

[0200] To prevent water from the water tank 100 from re-entering the filter device 600 through the circulation pipe 220 after the wastewater in the filter device 600 has been drained, the washing machine has a preset second setting condition. When the second setting condition is met, the circulation filter pipe is cut off, and the water in the water tank 100 is stopped from being transported to the filter device 600.

[0201] In the specific scheme of this embodiment, the first setting condition can be that the circulation pump 400 is turned off for a first set time t1, and the second setting condition can be that the circulation pump 400 is turned on for a second set time t2.

[0202] In the above scheme, the specific values ​​of the first set time t1 and the second set time t2 can be obtained in advance through a large number of experiments and directly written into the control program of the washing machine.

[0203] Specifically, the value of the first set time t1 is approximately the maximum duration required for the water level in the drainage pipeline 210 to start to decline until it stops, and the value of the second set time t2 is approximately the shortest duration required for the water level in the drainage pipeline 210 to rise close to the top of the drainage pipeline 210 after the circulation pump 400 is turned on. In this way, it can be ensured that during the period when the circulation pump 400 is turned off, a larger amount of air can enter the pipeline, and at the same time, it can effectively avoid the situation where water enters the filtering device 600 again after the circulation pump 400 is turned on.

[0204] In another solution of this embodiment, the water level height can also be used as the first set condition and the second set condition. Specifically, the first set condition is that the water level in the pipeline between the circulation pump 400 and the filtering device 600 reaches the first set value H1. The second set condition is that the water level in the pipeline between the circulation pump 400 and the filtering device 600 reaches the second set value H2. Among them, H1 < H2.

[0205] In this embodiment, the above-mentioned water level specifically refers to the water level height in the drainage pipeline 210. A water level detection device can be set in the drainage pipeline 210 of the washing machine to detect the water level in the drainage pipeline 210.

[0206] In the above solution, the value of the first set value H1 is greater than and as close as possible to the highest water level height of the washing machine to ensure that after the circulation pump 400 is turned off, the water level in the drainage pipeline 210 can drop to reach the first set value H1.

[0207] From the time when the washing machine receives the signal that the water level in the drainage pipeline 210 rises to the second set value H2 until the switching device 270 conducts between the drainage pipeline 210 and the external drainage pipeline 250, there is generally a certain time difference. To avoid water entering the filtering device 600 again after the circulation pump is turned on due to response delay, there needs to be a certain difference ΔH between the value of the second set value H2 and the water level height corresponding to the top of the drainage pipeline 210. The specific value of the difference ΔH can be obtained through a large number of pre-tests, so as to ensure that after the washing machine receives the signal that the water level reaches the second set value H2, it has sufficient response time to control the switching device 270 to complete the switching of the water circuit.

[0208] In a further solution of this embodiment, if the washing machine determines that the current running process is the last rinsing stage in this washing program, then after the rinsing is completed, the circulation pump 400 is turned off, and the circulation pump 400 is turned on after the first set condition is reached.

[0209] If the washing machine determines that the current running process is not the last rinsing stage in this washing program, then the following operations are performed after the rinsing is completed:

[0210] The circulation pump 400 remains in the running state;

[0211] Once the third set condition is met, the circulating filter pipeline will be shut off.

[0212] In the above scheme, during the intermediate rinsing stage, since the washing machine will continue to run afterward, that is, the rinsing water will circulate through the filter device 600 for filtration. At this time, it is not necessary to drain the wastewater carrying lint from the filter device 600. It is only necessary to remove the lint attached to the surface of the filter mechanism 620.

[0213] After rinsing, the return water control valve 231 is closed, the drain control valve 241 is opened, the circulation pump 400 remains running, and the water in the water tank 100 continues to be transported to the filter device 600 under the action of the circulation pump 400 to rinse the inside of the filter device 600. The rinsed wastewater is discharged into the drain pipe 240 through the drain outlet 6103.

[0214] In this embodiment, the third setting condition can be the completion of rinsing and the arrival of a third preset time t3. Its value is obtained in advance through experiments and written into the control program to ensure that the lint attached to the surface of the filter mechanism 620 can be basically removed.

[0215] Alternatively, when the water level in the water tank 100 drops to a preset value ΔH1, the circulation filter pipe can be cut off. That is, the control switching device 270 connects the drain pipe 210 and the external discharge pipe 250, and the circulation pump 400 continues to run, draining the remaining water in the water tank 100 from the washing machine.

[0216] In the preferred embodiment, after the intermediate rinsing is completed, the drive mechanism 660 is turned on, which drives the filter mechanism 620 to rotate at high speed in the filter chamber 610. This agitates the water in the filter chamber 610, causing the attached lint to peel off from the surface of the filter mechanism 620 under the combined action of centrifugal force and turbulent water flow. The lint is then dissolved into the water in the filter chamber 610 and discharged from the filter chamber 6103. This method results in high efficiency in cleaning lint.

[0217] In this embodiment, the washing machine only performs the operation of first turning off the circulation pump 400 and then turning it on again at the end of the final rinse cycle to completely drain the wastewater from the filter device 600. At the end of the intermediate rinse cycle, the circulation pump 400 remains running, avoiding frequent turning on and off of the circulation pump 400 during washing machine operation, which would affect its service life.

[0218] In this embodiment, the washing machine also cleans the filter device 600 after the washing cycle is completed. The specific control method is as follows:

[0219] Turn on the circulation pump 400, switch the device 270 to connect the water outlet of the circulation pump 400 with the filter device 600, open the return water control valve 231, and the washing machine will perform circulation filtration and washing.

[0220] After washing is finished, the circulation pump 400 remains running, the return water control valve 231 is closed, and the drain control valve 241 is opened;

[0221] When the fourth set condition is met, the switching device 270 connects the outlet of the circulation pump 400 to the external discharge pipe 250.

[0222] The fourth setting condition can be either the completion of washing at a fourth preset time t4, or the water level in the water tank 100 dropping to a preset value ΔH2.

[0223] Since a circulating filter rinse is required in the subsequent washing process after the washing is finished, similar to the intermediate rinse, it is not necessary to completely drain the wastewater in the filter device 600. The circulation pump 400 can remain running and does not need to be turned off.

[0224] In this embodiment, after the washing and intermediate rinsing cycles are completed, the washing machine keeps the circulation pump 400 running, delivering water from the water tank 100 to the filter device 600 for rinsing. The rinsed wastewater is discharged from the drain port 6103 of the filter device 600. After the final rinse, the circulation pump 400 is first turned off, and air is allowed to enter the pipeline before the circulation pump 400 is turned on again to force the air into the filter device 600, thereby completely draining the wastewater and ensuring that there is no wastewater residue in the filter device 600 after the washing machine stops running, effectively preventing bacterial growth. Furthermore, the washing machine only performs the operation of turning the circulation pump 400 off and on again after the final rinse, reducing unnecessary on / off operations of the circulation pump 400 and extending its service life.

[0225] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A filtration device, comprising: The filter chamber has a water inlet, a filtered water outlet, and a drain outlet to discharge filtered impurities. The filtration mechanism is rotatably installed inside the filtration chamber to filter the water entering the filtration chamber. The filter device is characterized in that it further includes: The blocking mechanism includes a baffle disposed inside the filter chamber, which divides the interior of the filter chamber into a first space and a second space located on both sides of the baffle. The water inlet is located on one side of the baffle and communicates with the first space, while the filtered water outlet and the sewage outlet are located on the other side of the baffle and communicate with the second space. A water passage structure is provided on the baffle or between the baffle and the inner wall of the filter chamber for connecting the first space and the second space. The cleaning particles are located in the first space inside the filter chamber, on the same side of the baffle as the water inlet, and are used to clean the inner wall of the filter chamber and the outer wall of the filter mechanism by friction and collision with the water flow. The outer periphery of the filtered water outlet extends outward from the filter cavity to form a sealing support portion; The filtration mechanism includes: The filtration unit, located on the same side of the baffle as the water inlet, filters the water entering the first space. The water outlet connector has one end connected to the filter section and the other end passing through the baffle and rotatably inserted into the sealing support section. A bearing is fitted onto the water outlet connector; a seal is provided on the side of the bearing facing the inside of the filter chamber, and the seal blocks the gap between the water outlet connector and the sealing support.

2. The filtration device according to claim 1, characterized in that, The water passage structure consists of a plurality of water passage holes provided on the baffle plate; the width of the water passage holes is D1, the width of the cleaning particles is d, and D1 < d; Alternatively, the outer periphery of the baffle is spaced apart from the inner wall of the filter chamber, and the water passage structure is the gap between the baffle and the inner wall of the filter chamber; the width of the gap is D2, the width of the cleaning particles is d, and D2 < d.

3. The filtration device according to claim 2, characterized in that, The density of the cleaning particles is less than that of water.

4. The filtration device according to claim 3, characterized in that, The density of the cleaning particles is 0.3 to 0.9 times that of water.

5. The filtration device according to claim 4, characterized in that, The density of the cleaning particles is 0.4 to 0.6 times that of water.

6. The filtration device according to claim 3, characterized in that, The water inlet is located in the upper part of the filter chamber, and the diameter of the water inlet is smaller than the width d of the cleaning particles.

7. The filtration device according to any one of claims 1-6, characterized in that, The baffle is provided with a through hole for the water outlet connector to pass through, and the through hole is clearance-fitted with the outer wall of the water outlet connector.

8. The filtration device according to any one of claims 1-6, characterized in that, The orientation of both the water inlet and the sewage outlet is perpendicular to the axis of the filtration mechanism.

9. The filtration device according to claim 8, characterized in that, The filter chamber has a columnar structure, the filtered water outlet is located on the end face of one end of the filter chamber, the sewage outlet is located at the end where the filtered water outlet is located, and the water inlet is located at the other end of the filter chamber.

10. The filtration device according to claim 7, characterized in that, The orientation of both the water inlet and the sewage outlet is perpendicular to the axis of the filtration mechanism.

11. The filtration device according to claim 10, characterized in that, The filter chamber has a columnar structure, the filtered water outlet is located on the end face of one end of the filter chamber, the sewage outlet is located at the end where the filtered water outlet is located, and the water inlet is located at the other end of the filter chamber.

12. A washing machine, characterized in that, include: water container; A circulating filtration pipeline, the inlet and outlet of which are respectively connected to a water tank, is provided with a filtration device as described in any one of claims 1-10.

13. The washing machine according to claim 12, characterized in that, It also includes a recycling device connected to the drain outlet to collect discharged filter impurities.

14. The washing machine according to claim 13, characterized in that, The sewage outlet and the recycling device are connected through a sewage pipeline, and a sewage control valve is installed on the sewage pipeline to control the opening and closing of the sewage pipeline.

15. The washing machine according to claim 13 or 14, characterized in that, The recycling device includes: The shell has an internal recovery chamber; A filter assembly is disposed within the recovery chamber, dividing the recovery chamber into a first chamber and a second chamber; The sewage outlet is connected to the first chamber. Sewage carrying filtered impurities enters the first chamber, is filtered by the filter assembly, and then enters the second chamber. The filtered impurities are collected in the first chamber.

16. The washing machine according to claim 15, characterized in that, The second chamber is provided with a water outlet for discharging filtered clean water.

17. The washing machine according to claim 15, characterized in that, The washing machine also includes a cabinet, and the water tank and filter device are both disposed inside the cabinet; the housing is insertable / removable from the cabinet.

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