Filtration equipment and washing machines

Abstract

The present invention discloses a filtering device and a washing machine. The filtering device includes a filtering chamber having a water inlet, a filtered water outlet, and a contaminant outlet for discharging filtered foreign matter to the outside, a filtering mechanism rotatably installed inside the filtering chamber and filtering water that has entered the filtering chamber, a blocking mechanism installed inside the filtering chamber and dividing the inside of the filtering chamber into a first space and a second space, the water inlet communicating with the first space, and the filtered water outlet and the contaminant outlet communicating with the second space, and cleaning particles installed in the first space in the filtering chamber, which generate friction and collision accompanying the water flow to clean the inner wall of the filtering chamber and the outer wall of the filtering mechanism. In the present invention, by providing the cleaning particles, it is possible to prevent the accumulation of filtered foreign matter during the filtering process and to avoid clogging of the filtering device. In addition, since the blocking mechanism can block the entry of the cleaning particles into the second space, it is possible to prevent the cleaning particles from flowing out of the filtered water outlet or the contaminant outlet together with the water flow, and also to avoid the cleaning particles from clogging the filtered water outlet or the contaminant outlet.

Description

[Technical Field]

[0001] The present invention relates to the technical field of washing machines, and more particularly to a filtering device and a washing machine. [Background technology]

[0002] Conventional washing machines are typically equipped with a filter for filtering out lint. During the washing process, wash water is circulated through the filter to remove lint from the wash water, preventing lint from adhering to the surface of washed clothes and affecting the washing performance of the clothes. However, the filter is typically installed inside the inner tub or drain pump. Over time, the filter can become filled with lint and other foreign matter, affecting the filtering performance of the filter and, in severe cases, clogging the drain pump. Furthermore, accumulated lint and other foreign matter are highly susceptible to bacterial growth. Therefore, if not promptly cleaned, the wash water can become contaminated, resulting in secondary contamination of clothes and adversely affecting the user's health. However, most washing machines require users to remove the filter and clean it manually, which is inconvenient.

[0003] In addition, some filters typically have larger pores to prevent lint from clogging the filter pores, but this means that some fine lint particles on clothing cannot be filtered out, resulting in the lint particles adhering to the clothing and affecting the user experience. Furthermore, some fine lint particles are discharged with the water flow and enter the ecosystem, ultimately affecting human health.

[0004] Patent Document 1 discloses a filter and a washing machine. The filter includes a filter cylinder and a filter mesh. The cylinder has a water inlet, a water outlet, and a pollutant outlet. The filter mesh is attached to the cylinder and divides the interior space of the filter cylinder into two parts: an internal storage chamber and an external storage chamber. The internal storage chamber has an upper end connected to the water inlet and a lower end connected to the pollutant outlet. The external storage chamber is connected to the water outlet. Wastewater flows into the internal storage chamber through the water inlet, is filtered by the filter mesh, then enters the external storage chamber and flows out through the water outlet. The filtered foreign matter is then discharged through the pollutant outlet.

[0005] In the above solution, the filter mesh structure makes it difficult for filtered foreign matter to get caught on the filter mesh, making it easier to discharge. However, automatic filter cleaning is not completely feasible, and the user must still manually clean the filter when necessary. In addition, the above solution can only perform automatic cleaning before and after circulating filtration, making it difficult to clean the inside of the filtration device during the circulating filtration process. Therefore, if there is a large amount of foreign matter in the water, such as lint, it may cover the filter mesh during the filtration process, which may seriously affect the filtration efficiency.

[0006] In view of the above, the present invention is proposed. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Chinese Patent Application Publication No. 201310612183.8 Summary of the Invention [Problem to be solved by the invention]

[0008] The technical problem that the present invention aims to solve is to provide a filtering device and washing machine that overcomes the defects of the prior art by providing cleaning particles in the filtering chamber of a filtering device, preventing the accumulation of filtered foreign matter due to friction generated by the cleaning particles inside the filtering device during the filtering process, thereby ensuring filtering efficiency, and providing a blocking mechanism in the filtering chamber that can block the cleaning particles from entering the filtered water outlet and the polluted discharge outlet, thereby preventing the cleaning particles from being discharged from the filtering chamber along with the water flow and avoiding the cleaning particles clogging the filtered water outlet or the polluted discharge outlet. [Means for solving the problem]

[0009] In order to solve the above technical problems, the basic idea of ​​the technical solution adopted in the present invention is as follows.

[0010] The filtering device includes a filtering chamber having a water inlet, a filtered water outlet, and a contaminant outlet for discharging filtered foreign matter to the outside, and a filtering mechanism that is rotatably mounted inside the filtering chamber and filters the water that has entered the filtering chamber.

[0011] The filtering device further includes a blocking mechanism provided inside the filtering chamber, dividing the interior of the filtering chamber into a first space and a second space, the water inlet communicating with the first space, and the filtered water outlet and the contaminated discharge port communicating with the second space, and cleaning particles provided in the first space within the filtering chamber, which generate friction and collision in association with the water flow and clean the inner wall of the filtering chamber and the outer wall of the filtering mechanism.

[0012] The blocking mechanism further includes a baffle disposed inside the filtration chamber, with the first space and the second space formed on either side of the baffle. A water-permeable structure for communicating the first space with the second space is provided between the baffle or the inner wall of the filtration chamber.

[0013] The water inlet and cleaning particles are provided on one side of the baffle, and the filtered water outlet and contaminant discharge outlet are provided on the other side of the baffle.

[0014] Furthermore, the water passage structure is a number of water passage holes provided in the shielding plate. When the width of the water passage hole is D1 and the width of the cleaning particles is d, D1 <dである。

[0015] Alternatively, the outer peripheral portion of the baffle is spaced apart from the inner wall of the filtration chamber, and the water-permeable structure is a gap between the baffle and the inner wall of the filtration chamber. If the width of the gap is D2 and the width of the cleaning particles is d, then D2 <dである。

[0016] Furthermore, the cleaning particles have a density less than that of water.

[0017] Preferably, the density of the cleaning particles is 0.3 to 0.9 times, more preferably 0.4 to 0.6 times, the density of water.

[0018] Preferably, the water inlet is provided in the upper region of the filtration chamber, and the diameter of the water inlet is smaller than the width d of the cleaning particles.

[0019] Furthermore, the outer periphery of the filtered water outlet extends toward the outside of the filtering chamber to form a sealing support.

[0020] The filtering mechanism includes a filtering section that is provided on the same side of the baffle as the water inlet and filters water that has entered the first space, and a water discharge fitting that has one end connected to the filtering section and the other end that penetrates the baffle and is rotatably inserted into the sealing support section.

[0021] Preferably, a bearing is provided to cover the water discharge joint, and a seal member is provided on the side of the bearing facing the inside of the filtering chamber, and the seal member closes the gap between the water discharge joint and the sealing support part.

[0022] Furthermore, the blocking plate is provided with a through hole through which the water discharge joint passes. The through hole and the outer wall of the water discharge joint are clearance fit.

[0023] Furthermore, the water inlet and the pollutant outlet are both oriented perpendicular to the axial direction of the filtering mechanism.

[0024] Preferably, the filtering chamber has a columnar structure, the filtered water outlet is provided on one end face of the filtering chamber, the contaminated discharge port is provided adjacent to the end where the filtered water outlet is located, and the water inlet is provided adjacent to the other end of the filtering chamber.

[0025] Another object of the present invention is to provide a washing machine, which includes a water tank, and a circulating filtering pipe having a water inlet end and a water outlet end respectively communicating with the water tank, and having the filtering device provided therein.

[0026] The filter further includes a collection device in communication with the contaminant outlet and adapted to collect the filtered particles that are discharged.

[0027] Preferably, the pollution discharge port communicates with the recovery device via a pollution discharge pipe, and the pollution discharge pipe is provided with a pollution discharge control valve for controlling opening and closing of the pollution discharge pipe.

[0028] The collection device further includes a housing having a collection chamber therein, and a filtration assembly disposed within the collection chamber and dividing the collection chamber into a first chamber and a second chamber.

[0029] The contaminant outlet is connected to the first chamber, and the contaminated water flows through the filter assembly and is filtered before it flows into the second chamber, and the contaminants are collected in the first chamber.

[0030] Preferably, the second chamber is provided with a water outlet for discharging filtered clean water.

[0031] Preferably, the washing machine further includes a housing, the water tank and the filtration device are both provided within the housing, and the housing is provided in the housing so as to be insertable / removable. [Effects of the Invention]

[0032] By using the above technical solutions, the present invention has the following beneficial effects compared with the prior art:

[0033] In the present invention, cleaning particles are provided within the filtering chamber. The cleaning particles, accompanied by the water flow, constantly rub and collide against the inner wall of the filtering chamber and the outer wall of the filtering mechanism during the filtering process, thereby achieving a cleaning effect. This prevents the accumulation of filtering debris and avoids clogging of the filtering device, which would otherwise affect filtering efficiency. The blocking mechanism also blocks the cleaning particles within the first space, preventing them from entering the second space with the water flow and thereby preventing them from being discharged through the filtered water outlet or clogging the filtered water outlet, thereby affecting the outflow of filtered water. After filtering is complete, the filtered debris accumulated during the filtering process can be discharged through the polluted water outlet along with the water flow. However, the blocking mechanism prevents the cleaning particles from being discharged through the polluted water outlet along with the water flow. This similarly prevents the polluted water outlet from being clogged with cleaning particles during the wastewater discharge process.

[0034] In the present invention, a baffle is provided as a blocking mechanism within the filtration chamber. The baffle has a water hole or a gap between the baffle and the inner wall of the filtration chamber. This allows the water flow to pass through, but prevents the cleaning particles from passing through because they are blocked by the baffle. This structure is simple and effectively blocks the cleaning particles. In addition, the density of the cleaning particles is smaller than that of water. This is more favorable for the cleaning particles to move within the filtration chamber along with the water flow. This prevents the cleaning particles from accumulating at the bottom of the filtration chamber, which would prevent the cleaning particles from achieving an effective cleaning effect.

[0035] In the present invention, water in the water tank is circulated and flows along the circulating filter pipe, allowing the water to constantly pass through a filter device in the circulating filter pipe to remove lint and other contaminants from the water. This reduces the amount of lint in the water in the water tank and improves washing efficiency. Furthermore, the collection device is connected to the contaminated discharge port of the filter chamber and can receive wastewater containing contaminants discharged from the filter device. This prevents the contaminants from being directly mixed into the washing machine's drain water and discharged to the outside, preventing fine lint from entering the ecosystem and harming human health.

[0036] In the present invention, a filter assembly is installed in the collection device to filter the wastewater that has entered the collection chamber, thereby separating contaminants from the water. This prevents the contaminants from mixing with the water, which can make treatment difficult. After filtration, the clean water is either introduced into a water tank for reuse or discharged into a drainage pipe. This eliminates the problem of fine lint affecting the ecological environment.

[0037] Specific embodiments of the present invention will be described in more detail below in conjunction with the drawings.

[0038] The drawings are used as part of the present invention for further understanding of the present invention. Furthermore, the schematic embodiments of the present invention and their explanations are used for interpreting the present invention, but do not unduly limit the present invention. It goes without saying that the drawings described below are only a part of the embodiments, and those skilled in the art can obtain other drawings from these drawings without requiring creative work. [Brief explanation of the drawings]

[0039] [Figure 1] FIG. 1 is a schematic diagram of a filtering device according to a first embodiment of the present invention attached to a washing machine. [Figure 2] FIG. 2 is a schematic enlarged view of part A in FIG. 1 according to the present invention. [Figure 3] FIG. 3 is a schematic structural diagram of a shield plate according to the first embodiment of the present invention. [Figure 4] FIG. 4 is a schematic diagram of the washing machine according to the first embodiment of the present invention when it performs an automatic cleaning operation. [Figure 5] FIG. 5 is a schematic diagram of the washing machine according to the first embodiment of the present invention when it performs a pollution discharge operation. [Figure 6] FIG. 6 is a schematic enlarged view of part B of FIG. 5 according to the present invention. [Figure 7] FIG. 7 is a schematic structural diagram of a filtering device according to a fourth embodiment of the present invention. [Figure 8] FIG. 8 is a schematic view of the CC cross section of FIG. 7 according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0040] It should be explained that these drawings and written descriptions are not intended to limit the scope of the inventive concepts in any way, but rather to illustrate the inventive concepts to those skilled in the art with reference to specific embodiments.

[0041] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and concisely describe the technical solutions of the embodiments in combination with the drawings in the embodiments of the present invention, which are for the purpose of illustrating the present invention but are not intended to limit the scope of the present invention.

[0042] In describing the present invention, it should be noted that directions or positional relationships indicated by terms such as "upper," "lower," "left," "right," "portrait," "inner," and "outer" are directions or positional relationships based on the drawings, and are merely for the convenience and simplification of the description of the present invention, and do not explicitly or implicitly indicate that the subject devices or components have a specific orientation and must be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0043] In describing the present invention, it is to be understood that unless otherwise clearly defined and limited, the terms "attach" and "connect" should be interpreted broadly. For example, they may be fixedly connected, detachably connected, or integrally connected. They may also be directly connected or indirectly connected via an intermediate medium. Those skilled in the art can interpret the specific meanings of the above terms in the present invention according to the specific circumstances. [Example]

[0044] As shown in Figures 1 to 6, this embodiment provides a filtering device 600 including: a filtering chamber 610 having a water inlet 6101, a filtered water outlet 6102, and a contaminant discharge outlet 6103 for discharging filtered foreign matter 501 to the outside; a filtering mechanism 620 rotatably provided inside the filtering chamber 610 and filtering water that has entered the filtering chamber 610; a blocking mechanism provided inside the filtering chamber 610 and dividing the interior of the filtering chamber 610 into a first space and a second space, with the water inlet 6101 communicating with the first space and the filtered water outlet 6102 and the contaminant discharge outlet 6103 communicating with the second space; and cleaning particles 680 provided in the first space inside the filtering chamber 610 and generating friction and collision in association with the water flow to clean the inner wall of the filtering chamber 610 and the outer wall of the filtering mechanism 620.

[0045] The filtering device 600 of this embodiment can be attached to a washing machine and is used to filter and remove lint contained in washing water. The washing machine includes, but is not limited to, a washing machine, a care machine, a dishwasher, etc. In this embodiment, a case where the filtering device 600 is attached to a washing machine will be described by combining Figures 1 to 6.

[0046] Specifically, filtering mechanism 620 divides the interior of filtering chamber 610 into an outer storage chamber and an inner storage chamber. Water inlet 6101 of filtering chamber 610 is connected to the outer storage chamber. Water to be filtered in washing machine water tank 100 is transported to water inlet 6101 and enters the outer storage chamber inside filtering chamber 610. After being filtered by filtering mechanism 620, the water in the outer storage chamber enters the inner storage chamber and flows out from filtered water outlet 6102 connected to the inner storage chamber. However, foreign particles 501 in the water cannot pass through filtering mechanism 620 and remain in the outer storage chamber.

[0047] The blocking mechanism divides the interior of the filtering chamber 610 into a first space on the left and a second space on the right. The main body of the filtering mechanism 620 is located in the first space. During the filtering process, the cleaning particles 680, along with the flow of water, constantly rub against the inner wall of the filtering chamber 610 and the outer wall of the filtering mechanism 620 between the filtering chamber 610 and the filtering mechanism 620 in the first space, causing the adhering filtering particles 501 to fall off. This prevents the accumulation of the filtering particles 501, thereby preventing the filtering mechanism 620 from being covered with the filtering particles 501 and affecting filtering efficiency. This also prevents the thickness of the adhering filtering particles 501 from becoming too thick after filtering is completed and adhering too tightly to the inner wall of the filtering chamber 610 or the outer wall of the filtering mechanism 620, making it difficult to remove the filtering particles 501 when cleaning the filtering device 600 later. Furthermore, by providing a blocking mechanism, the cleaning particles 680 are prevented from entering the second space, thereby preventing the cleaning particles 680 from passing through the filtered water outlet 6102 and being discharged along with the water flow, or from accumulating in the filtered water outlet 6102 and clogging it.

[0048] The filtering mechanism 620 is connected to a driving mechanism 660, such as a motor, for rotating the filtering mechanism 620 within the filtering chamber 610. When the filtering device 600 needs to be cleaned, the filtering mechanism 620 is rotated by the driving mechanism 660 to agitate the water within the filtering chamber 610. As a result, the centrifugal force and the turbulent water flow cause the filtering foreign matter 501 on the outer wall of the filtering mechanism 620 to peel off from the outer wall of the filtering mechanism 620, mix into the water within the filtering chamber 610, and then discharge the foreign matter 501 from the filtering chamber 610 via the contamination discharge port 6103. This allows the filtering device 600 to be automatically cleaned without the need for manual operation by the user, which is convenient for use.

[0049] During the above process, the cleaning particles 680 move within the filtering chamber 610 due to the action of the turbulent water flow, generating friction against the inner wall of the filtering chamber 610 and the outer wall of the filtering mechanism 620. This improves the efficiency of removing the filtering particles 501, and improves the automatic cleaning effect of the filtering device 600. Furthermore, when discharging the filtering particles 501 to the outside, the water flow passes through the blocking mechanism and can be discharged from the pollutant discharge port 6103, but the cleaning particles 680 are blocked by the blocking mechanism and remain in the first space on the left side. This prevents the cleaning particles 680 from being discharged together with the water flow from the pollutant discharge port 6103 or from clogging the pollutant discharge port 6103, which would affect the efficiency of pollutant discharge.

[0050] In this embodiment, the shape of the cleaning particles 680 includes, but is not limited to, a sphere, an elliptical sphere, an elliptical cylinder, etc. The surface of the cleaning particles 680 may be smooth or uneven. Preferably, the cleaning particles 680 have an uneven surface, which can increase the frictional force against the inner wall of the filtration chamber 610 and the outer wall of the filtration mechanism 620, thereby improving the effect of removing the filtering particles 501.

[0051] Preferably, the cleaning particles 680 are made of a wear-resistant elastic material. This prevents the cleaning particles 680 from being easily worn during use. Also, preferably, the recovery rate of the cleaning particles 680 is 0 to 50%. If the cleaning particles 680 are made of an elastic material that is relatively easily deformed when subjected to force, it is possible to prevent the filtering mechanism 620 from getting stuck with the cleaning particles 680 during rotation, which could result in damage to the filtering device 600.

[0052] More preferably, the cleaning particles 680 are made of a wear-resistant, elastic, antibacterial material. For example, if an antibacterial component such as copper ions or silver ions is added, it is possible to achieve a certain degree of sterilization effect on the filtered water during the filtration process.

[0053] In a further embodiment of this embodiment, the blocking mechanism includes a baffle 690 disposed inside the filtration chamber 610. The first space and the second space are formed on the left and right sides of the baffle 690. The baffle 690 also includes a water-permeable structure for connecting the first space and the second space.

[0054] The water inlet 6101 and the cleaning particles 680 are provided on the left side of the baffle 690 , and the filtered water outlet 6102 and the contaminated discharge outlet 6103 are provided on the right side of the baffle 690 .

[0055] Furthermore, the outer periphery of the baffle 690 is in close contact with or nearly in close contact with the inner wall of the filtration chamber 610. The water passage structure is several water passage holes 691 provided in the baffle 690. If the width of the water passage holes 691 is D1 and the width of the cleaning particles 680 is d, then D1 <dである。

[0056] In this embodiment, the water passage hole 691 is a round hole, and the width D1 of the water passage hole 691 is the diameter of the water passage hole 691. As can be understood, the water passage hole 691 may have other shapes, such as a square hole or a linear hole, and in such cases, the width D1 is the smallest size of the water passage hole 691 in different directions.

[0057] Similarly, in the case of a spherical cleaning particle 680, the width d of the cleaning particle 680 is the diameter of the cleaning particle 680. In the case of cleaning particles 680 of other shapes, the sizes of the cleaning particles 680 in different directions are not completely the same, so the minimum size among the multiple different sizes is the width d. This ensures that the cleaning particles 680 cannot pass through the water passage holes 691 on the baffle plate 690 no matter how they change direction, and therefore ensures that the baffle plate 690 can effectively block the cleaning particles 680.

[0058] In the above solution, the blocking mechanism is a blocking plate 690 with a water passage hole 691, which allows the water flow and the lint contained therein to pass through easily, but effectively blocks the cleaning particles 680. This structure is simple and easy to implement.

[0059] In a preferred embodiment of this embodiment, a protruding positioning structure is provided on the inner wall of the filtering chamber 610. To facilitate positioning of the baffle 690 when it is installed, the positioning structure is provided on the left side of the baffle 690 and contacts the baffle 690, positioning the baffle 690 at an appropriate position within the filtering chamber 610. That is, there is sufficient space on the left side of the baffle 690 for installing the main body of the filtering mechanism 620. In addition, the filtered water outlet 6102 and the contaminant discharge port 6103 are both located on the right side of the baffle 690.

[0060] In this embodiment, a position restriction structure may be further provided on the inner wall of the filtering chamber 610. The position restriction structure is provided on the right side of the blocking plate 690 and contacts the blocking plate 690. Because the water flow has a force that causes it to flow to the right inside the filtering chamber 610, providing the position restriction structure prevents the blocking plate 690 from being shaken and displaced to the right due to the impact of the water flow, thereby preventing the contamination discharge port 6103 from directly communicating with the space where the cleaning particles 680 are present.

[0061] In a further solution of this embodiment, the density of the cleaning particles 680 is lower than that of water. Therefore, after the water flow enters the filtering chamber 610, the cleaning particles 680 can float in the water and move more easily along with the water flow within the first space of the filtering chamber 610. This causes friction and collision with the inner wall of the filtering chamber 610 and the outer wall of the filtering mechanism 620, causing the filtering particles 501 to fall off. This prevents the cleaning particles 680 from accumulating at the bottom of the filtering chamber 610 and failing to provide an effective cleaning effect due to insufficient impact force of the water flow.

[0062] In a preferred embodiment of the present invention, the density of the cleaning particles 680 is 0.3 to 0.9 times, preferably 0.4 to 0.6 times, that of water, so that the cleaning particles 680 can quickly rise from the bottom to the surface and move with the water current, thereby cleaning the inside of the filter device 600.

[0063] In this embodiment, the water inlet 6101 is provided in the upper region of the filtering chamber 610. This allows the water to be filtered to enter the filtering chamber 610 from top to bottom, exerting a greater impact on the filtering mechanism 620 and making it easier for the water to pass through the filtering mechanism 620 and be filtered. Furthermore, when cleaning the filtering device 600, the water flow entering the filtering chamber 610 from the water inlet 6101 more powerfully washes the outer wall of the filtering mechanism 620, which can have an auxiliary effect on removing the foreign matter 501.

[0064] Because the diameter of water inlet 6101 is smaller than the width d of cleaning particles 680, cleaning particles 680 cannot pass through water inlet 6101. By restricting the movement of cleaning particles 680 to between water inlet 6101 and baffle plate 690 in this way, it is possible to prevent cleaning particles 680 from floating up in the water and moving from water inlet 6101 to the outside of filtration chamber 610 when filtration chamber 610 is filled with water.

[0065] In another embodiment of this embodiment, the periphery of the filtrate outlet 6102 extends toward the outside of the filtering chamber 610 to form a sealing support 611 .

[0066] The filtering mechanism 620 is provided on the same side of the baffle 690 as the water inlet 6101 and includes a filtering section that filters water that has entered the first space, and a water discharge joint 621 whose left end is connected to the filtering section and whose right end penetrates the baffle 690 and is rotatably inserted into the sealing support section 611.

[0067] Blocking plate 690 is provided with a through hole 692 through which water discharge joint 621 passes. Through hole 692 and the outer wall of water discharge joint 621 form a clearance fit.

[0068] In the above solution, the water outlet joint 621 is rotatably and sealedly connected to the sealing support part 611. Filtered water flows out through the water outlet joint 621. The baffle 690 is provided with a through-hole 692 that is a clearance fit with the outer wall of the water outlet joint 621, and the outer wall of the water outlet joint 621 does not come into contact with the inner wall of the through-hole 692. This prevents a situation in which friction exists between the baffle 690 and the water outlet joint 621 when the filtering mechanism 620 rotates, generating resistance and affecting the smooth rotation of the filtering mechanism 620.

[0069] In this embodiment, the water inlet 6101 and the pollutant outlet 6103 are both oriented perpendicular to the axial direction of the filtering mechanism 620 .

[0070] Specifically, the filtering chamber 610 has a columnar structure. The filtered water outlet 6102 is provided on the end face of the right end of the filtering chamber 610. The contaminant discharge port 6103 is provided adjacent to the right end of the filtering chamber 610 where the filtered water outlet 6102 is located. The water inlet 6101 is provided relatively close to the left end of the filtering chamber 610.

[0071] In the above solution, the filtered water outlet 6102 and the contaminant discharge port 6103 must be located on the same side of the baffle plate 690. By locating them both in the right end region of the filtering chamber 610 and locating the water inlet 6101 relatively close to the left end, it becomes easier to install the baffle plate 690 and also advantageously ensures that a large space is reserved on the left side of the baffle plate 690.

[0072] In addition, to fully utilize the area of ​​the filtering section, the position of the water inlet 6101 is positioned as far away as possible from the water outlet joint 621. The water inlet 6101 and the pollutant outlet 6103 are arranged one above the other and are offset in the axial direction of the filtering chamber 610. This is advantageous for fully discharging the polluted water in the filtering chamber 610 after cleaning the filtering device 600. Furthermore, because the water inlet 6101 and the pollutant outlet 6103 are offset, a water flow that flows in the axial direction is formed in the filtering chamber 610. This is advantageous for fully moving the cleaning particles 680 in the filtering chamber 610 within the axial range of the filtering chamber 610 and for fully cleaning the filtering foreign matter 501 adhering to the inside of the filtering chamber 610.

[0073] This embodiment further provides a washing machine having the above-mentioned filtering device 600. The washing machine includes a water tank 100 and a circulation filtering pipe having a water inlet end and a water outlet end that communicate with the water tank 100 and in which the filtering device 600 is provided.

[0074] Specifically, a circulation pump 400 is installed between the water inlet end of the circulation filtration pipe and the water inlet 6101 of the filtration device 600. By starting the circulation pump 400, water in the water tank 100 is drawn into the circulation filtration pipe, flows along the circulation filtration pipe, passes through the filtration device 600 for filtration, and the filtered water is returned to the water tank 100. During the washing / rinsing cycle of the washing machine, the circulation pump 400 constantly passes the water in the water tank 100 through the filtration device 600. This reduces the amount of lint in the water in the water tank 100, improving the washing effect.

[0075] In this embodiment, the filter device 600 is installed in the washing machine horizontally, i.e., the axial direction of the filter mechanism 620 is parallel to the horizontal direction.

[0076] In another embodiment of the present invention, a three-way branch structure is provided between the discharge end of circulation pump 400 and the discharge end of the circulation filter pipe. The three-way branch structure is connected to external discharge pipe 250, which drains water to the outside of the washing machine. A filter device 600 is provided between the three-way branch structure and the discharge end of the circulation filter pipe.

[0077] Furthermore, the three-way branching structure is a switching device 270 that controls the filtration device 600 and the external discharge pipe 250 to selectively open to the discharge end of the circulation pump 400, and includes a water inlet that communicates with the discharge end of the circulation pump 400, a first water outlet that communicates with the filtration device 600, a second water outlet that communicates with the external discharge pipe 250, and a switching mechanism that controls the first water outlet and the second water outlet to selectively open to the water inlet.

[0078] Specifically, the circulation filtration pipeline includes a water tank drain pipe 260 connecting the water tank 100 and the water inlet end of the circulation pump 400, a drain pipe 210 having one end connected to the water outlet end of the circulation pump 400 and the other end connected to the water inlet of the switching device 270, a circulation pipeline 220 having one end connected to the first water outlet of the switching device 270 and the other end connected to the water inlet 6101 of the filtering device 600, and a return water pipeline 230 having one end connected to the filtered water outlet 6102 of the filtering device 600 and the other end connected to the water tank 100, which transports filtered water into the water tank 100.

[0079] The external discharge pipe 250 has a water inlet end connected to the second water outlet of the switching device 270 and a water outlet end extending to the outside of the washing machine.

[0080] In detail, the filtration device 600 is provided above the water tank 100, and the circulation pipe 220 and the return water pipe 230 are also provided above the water tank 100. The discharge end of the return water pipe 230 is connected to the window packing 110, realizing communication with the water tank 100. The circulation pump 400 is provided below the water tank 100 and communicates with the water tank 100 through the water tank drain pipe 260. By the action of the circulation pump 400, water is drawn out from the water tank 100 and transported from bottom to top along the drain pipe 210 to the switching device 270.

[0081] In the above solution, switching device 270 is provided to selectively open both filtration device 600 and external discharge pipe 250 in conjunction with circulation pump 400. As shown in FIG. 1, the switching mechanism opens the water inlet and the first water outlet. That is, because circulation pump 400 is connected to filtration device 600, the water in water tank 100 flows along the circulation filtration pipe and is filtered by filtration device 600 under the action of circulation pump 400. Also, as shown in FIG. 5, the switching mechanism opens the water inlet and the second water outlet. That is, because circulation pump 400 is connected to external discharge pipe 250, the wash water in water tank 100 is drawn through water tank drain pipe 260, passes through drain pipe 210, and is finally transported to external discharge pipe 250 and discharged from the washing machine.

[0082] The above installation method eliminates the need for two independent water channels, one for circulating and filtering wash water and the other for draining, or the need for separate drain and circulation pumps, inside the washing machine. Instead, simply by operating switching device 270 to change the connection method between the pipes, a single circulation pump 400 can achieve both drainage to the outside and circulating and filtering wash water. This simplifies the pipe connection structure inside the washing machine and saves the space occupied by the pipes. Furthermore, since only one circulation pump 400 is required, production costs can be reduced.

[0083] In this embodiment, a water return port may be opened in the wall of the water tank, and the discharge end of the water return pipe may be connected to the water return port to return water directly into the water tank.

[0084] The washing machine of this embodiment further includes a main water supply pipe that connects an external water source to the water tank. The outlet end of the return water pipe may be connected to the main water supply pipe. For example, the return water pipe may be connected to a detergent case provided in the main water supply pipe, and filtered water may be returned to the water tank via the detergent case.

[0085] In another embodiment of this embodiment, the washing machine further includes a collection device 500. The collection device 500 communicates with the contaminant outlet 6103 and is used to collect the filtered foreign matter 501 that is discharged.

[0086] In the above solution, to prevent the filtered particles 501 from entering the drain water flow and being discharged from the washing machine together with the drain water flow, a recovery device 500 is provided to collect the filtered particles 501 discharged from the filtering device 600. This method prevents the fine lint in the filtered particles 501 from being discharged together with the water flow and entering the ecological cycle, which could cause harm to the ecological environment and human health.

[0087] In a preferred embodiment of the present invention, the pollution outlet 6103 communicates with the recovery device 500 through a pollution discharge line 240. The pollution discharge line 240 is provided with a pollution discharge control valve 241 for controlling the opening and closing of the pollution discharge line 240.

[0088] In addition, the water return pipe 230 is also provided with a water return control valve 231 for controlling the opening and closing of the water return pipe 230, thereby realizing the opening and closing control of the circulation filtration pipe.

[0089] In the above solution, when circulating and filtering flush water in the water tank 100, the return water control valve 231 opens to open the return water pipe 230, and the pollutant discharge control valve 241 closes to block the pollutant discharge pipe 240. Then, by the action of the circulation pump 400, the flush water passes through the water tank drain pipe 260, the drain pipe 210, the circulation pipe 220, and the filtration device 600 in that order, and finally returns to the water tank 100 via the return water pipe 230. Furthermore, when it is necessary to discharge the filtering foreign matter 501 remaining in the filtration device 600, the return water control valve 231 closes to block the return water pipe 230, preventing the flush water from flowing out from the filtered water outlet 6102. At the same time, the pollution discharge control valve 241 opens to open the pollution discharge pipeline 240, so that the water that has entered the filtration device 600 flows out through the pollution discharge port 6103, ensuring that the filtered foreign matter 501 is sufficiently removed from the filtration device 600.

[0090] In a specific embodiment of this embodiment, the collection device 500 includes a housing 510 having a collection chamber therein, and a filter assembly 520 disposed within the collection chamber and dividing the collection chamber into a first chamber 531 and a second chamber 532.

[0091] The contaminant outlet 6103 communicates with the first chamber 531. The dirty water with the filtration particles 501 enters the first chamber 531, passes through the filtration assembly 520 and is filtered, and then enters the second chamber 532. The filtration particles 501 are collected in the first chamber 531.

[0092] Specifically, the filter assembly 520 may be a frame installed horizontally at a certain height in the collection chamber, and a filter mesh laid on the frame. After the wastewater carrying the contaminants 501 enters the first chamber 531, the water can pass through the filter assembly 520 and enter the second chamber 532, but the contaminants 501 are blocked by the filter mesh and remain on the top surface of the filter assembly 520.

[0093] In the above solution, a filter assembly 520 is provided in the collection device 500 to filter the received wastewater and separate the foreign particles 501 from the water. The filter assembly 520 divides the interior of the collection device 500 into a first chamber 531 and a second chamber 532, and the filter assembly 520 blocks the foreign particles 501 in the wastewater. As a result, the foreign particles 501 are collected on the upper surface of the filter assembly 520 in the first chamber 531, and clean water obtained by filtration is collected in the second chamber 532. The user can directly collect and dispose of the separated foreign particles 501, thereby avoiding a situation where the foreign particles 501 disperse in the water and become difficult to dispose of.

[0094] In this embodiment, the washing machine further includes a housing 10. The water tank 100 and the filtration device 600 are both provided in the housing 10. The housing 510 can be installed in the housing 10 so as to be insertable / removable. A user can remove the housing 510 from the housing 10 to clean the inside.

[0095] Specifically, an opening is provided on the upper side of the housing 510. When the user removes the housing 510 from the case 10, the user can clean the filtering foreign matter 501 adhering to the upper surface of the filtering assembly 520 through the opening on the upper side of the housing 510. Preferably, the filtering assembly 520 is detachably connected to the housing 510. In this case, the user can disassemble and remove the filtering assembly 520 from inside the housing 510 for cleaning, which makes the operation even easier.

[0096] In a preferred embodiment of the present invention, the second chamber 532 is provided with a water outlet for discharging the filtered clean water. By providing the water outlet in the second chamber 532, the clean water that has entered the second chamber 532 can be quickly discharged from the recovery device 500. This prevents the recovery device 500 from overflowing when a large amount of wastewater flows in from the filtering device 600. Otherwise, the capacity of the second chamber 532 would need to be increased, which would increase the overall volume of the recovery device 500, occupying a large space inside the washing machine and being detrimental to reducing the overall volume of the washing machine.

[0097] Furthermore, since the water in second chamber 532 can be automatically discharged from the water outlet, when the user cleans collection device 500, he or she only needs to clean filtering foreign matter 501 on filter assembly 520, and does not need to manually discard the clean water in second chamber 532. Furthermore, if filter assembly 520 is removably attached within housing 510, the user can simply take out filter assembly 520 and clean it without having to completely remove housing 510 from casing 10 of the washing machine, making operation even easier.

[0098] The washing machine of this embodiment performs a circulation filtering operation, an automatic cleaning operation, and a pollutant discharge operation during the course of executing the washing program.

[0099] 1 and 2, the circulating filtering operation includes the following: the switching device 270 opens the drainage line 210 and the circulation line 220, the pollutant discharge control valve 241 closes, and the return water control valve 231 opens to open the return water line 230. Then, the circulation pump 400 is started to draw water from the water tank 100 into the circulation filtering line, which then passes through the filtration device 600 to remove contaminants, and then returns the water to the water tank 100. During the above process, the cleaning particles 680 move in the filtering chamber 610 along with the water flow, constantly generating friction against the inner wall of the filtering chamber 610 and the outer wall of the filtering mechanism 620, thereby preventing the accumulation of contaminants.

[0100] 4, the automatic cleaning operation includes the following: closing the return water control valve 231, opening the pollutant discharge control valve 241 to open the pollutant discharge line 240, and starting the circulation pump 400 to draw water from the water storage tank 100 into the filtration device 600, which is then cleaned and discharged into the recovery device 500. The automatic cleaning operation also includes controlling the drive mechanism 660 to rotate the filtration mechanism 620 within the filtration chamber 610. During the above process, the cleaning particles 680 move with the water flow, generating friction against the inner wall of the filtration chamber 610 and the outer wall of the filtration mechanism 620, which helps remove the contaminants.

[0101] 5 and 6, the pollutant discharge operation includes the following: the return water control valve 231 is closed, the pollutant discharge control valve 241 is opened, and the pollutant discharge pipe 240 is opened to discharge the wastewater containing the filtered particles 501 in the filtering device 600 to the recovery device 500. When performing the pollutant discharge operation, the driving mechanism 660 may be activated to control the rotation of the filtering mechanism 620, or the filtering mechanism 620 may be kept stationary in the filtering chamber 610 without activating the driving mechanism 660. During the above process, the water level in the filtering chamber 610 drops as the wastewater is discharged. As the water level drops, the cleaning particles 680 gradually sink and are blocked by the baffle plate 690, and finally accumulate at the bottom of the filtering chamber 610.

[0102] In this embodiment, the circulation filtering operation is performed during the washing step and one to several rinsing steps of the washing program, and the automatic cleaning operation and / or the contamination discharge operation is performed at least once during one entire washing program. Preferably, the automatic cleaning operation and the contamination discharge operation are performed at the end of the washing step and each rinsing step.

[0103] Specifically, after a certain time has passed since the start of water supply in the washing stage and each rinsing stage, the circulation pump 400 is started to start the circulating and filtering operation. The circulating and filtering operation is continuously performed until the washing or rinsing stage is nearing the end. Then, just before draining, the return water control valve 231 is closed, the pollutant discharge control valve 241 is opened, and the drive mechanism 660 is started to perform the automatic cleaning operation. After continuing the automatic cleaning operation for a certain time, the washing machine performs the pollutant discharge operation.

[0104] In detail, the washing machine detects the water level in water tank 100 after starting water supply, and when the water level reaches a preset level, starts circulation pump 400 to begin performing the circulation and filtering operation. This prevents a situation in which air is sucked into circulation pump 400 due to an insufficient amount of water in water tank 100, causing operating noise. In addition, while performing the pollutant discharge operation, the washing machine also controls the operation of switching device 270 to open drain pipe 210 and external drain pipe 250. Then, circulation pump 400 continues to operate, thereby discharging the water remaining in water tank 100. The pollutant discharge operation is performed simultaneously with the washing machine's drainage operation, which is advantageous in improving the operating efficiency of the washing machine.

[0105] In this embodiment, the washing machine is provided with filtration device 600 that can circulate and filter the water in water tank 100 while the washing machine is running, thereby reducing the amount of lint in the water and improving the washing effect. In addition, filtration device 600 can perform automatic cleaning to discharge filtering debris 501 remaining inside filtration device 600, eliminating the need for the user to remove filtration device 600 from the washing machine and perform manual cleaning, making it more convenient to use.

[0106] The filtering device 600 is provided with cleaning particles 680 that can move with the water flow and prevent the accumulation of filtering particles 501 inside the filtering chamber 610, thereby improving the cleaning efficiency of the filtering particles 501. A baffle 690 is also provided inside the filtering chamber 610, separating the cleaning particles 680 from the filtrate outlet 6102 and the contaminant discharge port 6103 on both sides of the baffle 690. The baffle 690 has a water passage hole 691 that allows the water flow and filtering particles 501, such as lint, to pass through. The water inside the filtering chamber 610 can pass through the water passage hole 691 on the baffle 690 and be discharged from the filtering chamber 610 via the filtrate outlet 6102 or the contaminant discharge port 6103, but the cleaning particles 680 are blocked by the baffle 690 and cannot pass through, and therefore are not discharged from the filtrate outlet 6102 or the contaminant discharge port 6103 with the water flow. In addition, the cleaning particles 680 are prevented from accumulating and clogging the filtered water outlet 6102 or the contaminated discharge outlet 6103. [Example]

[0107] This embodiment differs from the first embodiment in that the water-permeable structure is provided between the baffle plate and the inner wall of the filtration chamber.

[0108] Specifically, the outer peripheral portion of the baffle is spaced apart from the inner wall of the filtration chamber, and the water-permeable structure is the gap between the baffle and the inner wall of the filtration chamber. If the width of the gap is D2 and the width of the cleaning particles is d, then D2 <dである。

[0109] Specifically, a gap of width D2 is provided between the lower edge of the baffle and the inner wall of the filtering chamber. The water flow and the lint contained therein can pass through the gap and be discharged from the contaminated discharge port of the filtering chamber. However, the size of the cleaning particles is larger than the width of the gap and cannot pass through, so they are blocked by the baffle. Therefore, they are not discharged together with the water flow from the filtered water outlet or the contaminated discharge port, and they do not accumulate in the filtered water outlet or the contaminated discharge port, causing clogging and affecting the normal discharge of the water flow.

[0110] In this embodiment, only the structure of the shielding plate is changed compared to the above-mentioned Example 1. Even in this case, it is possible to realize effective blocking of cleaning particles, and it has the same functions and effects as Example 1. [Example]

[0111] This embodiment provides a washing machine. The difference from the first embodiment is that the filtering device is installed vertically in the washing machine. That is, the axial direction of the filtering mechanism is vertical.

[0112] Specifically, the filtered water outlet of the filtering chamber is vertically oriented and faces downward. The water inlet and contaminated discharge outlet are oriented in opposite directions and are both parallel to the horizontal. Preferably, the water inlet is positioned higher than the contaminated discharge outlet so that any remaining filtered particles can be sufficiently discharged. This prevents the remaining filtered particles from breeding bacteria in the filtering device and contaminating the wash water. The baffle is located in the lower region of the filtering chamber. When the water in the filtering chamber is discharged, the washing particles accumulate on the upper surface of the baffle and are not discharged with the water flow or clog the filtered water outlet or contaminated discharge outlet.

[0113] In this embodiment, the other structures and control methods of the washing machine are the same as those in the first embodiment, and have similar functions and effects to those in the first embodiment. [Example]

[0114] 7 and 8, in this embodiment, the filtering device 600 (shroud not shown) of the first embodiment is further limited. A first bearing 631 is provided to cover the water discharge joint 621. A first seal member 641 is provided on the side of the first bearing 631 facing the inside of the filtering chamber 610. The first seal member 641 closes the gap between the water discharge joint 621 and the sealing support part 611.

[0115] In the above solution, a first bearing 631 supporting the water discharge joint 621 is provided between the water discharge joint 621 and the sealing support part 611. This allows the water discharge joint 621 to rotate more smoothly within the sealing support part 611 and stabilizes the structure, ensuring stable rotation of the filtering mechanism 620 within the filtering chamber 610. In addition, a first seal member 641 is provided to the right of the first bearing 631, preventing flushing water within the filtering chamber 610 from entering the gap between the water discharge joint 621 and the sealing support part 611. This prevents contact between the first bearing 631 and water, preventing loss of function of the first bearing 631 and ensuring the function and effect of the first bearing 631. In addition, the first seal member 641 also prevents unfiltered flushing water from flowing out from the filtered water outlet 6102 via the sealing support part 611, which would affect the efficiency of the filtering device 600 in removing lint and other foreign matter.

[0116] In a specific solution of this embodiment, the first sealing member 641 is installed over the water discharge joint 621. As a result, the inner wall of the first sealing member 641 and the outer wall of the water discharge joint 621 are hermetically connected, and the outer wall of the first sealing member 641 and the inner wall of the sealing support part 611 are rotatably hermetically connected.

[0117] In a further solution of this embodiment, the filtering device 600 further includes a second sealing member 642. The second sealing member 642 is disposed on the opposite side of the first bearing 631 from the inside of the filtering chamber 610, and closes the gap between the water discharge joint 621 and the sealing support part 611.

[0118] Specifically, the second sealing member 642 is installed to cover the water discharge joint 621. As a result, the inner wall of the second sealing member 642 and the outer wall of the water discharge joint 621 are hermetically connected, and the outer wall of the second sealing member 642 and the inner wall of the sealing support part 611 are rotatably hermetically connected.

[0119] In the above solution, second seal member 642 is further provided on the left side of first bearing 631, so that water flowing out from discharge joint 621 can be blocked by second seal member 642 and prevented from coming into contact with first bearing 631. First bearing 631 is located between first seal member 641 and second seal member 642, which maximizes the assurance that no water is present in the installation environment of first bearing 631. This prevents first bearing 631 from coming into contact with water and becoming rusty, which would affect the smooth rotation of filtering mechanism 620.

[0120] In a further solution of this embodiment, the inner wall of the sealing support part 611 has a stepped structure, and from one end of the sealing support part 611 toward the outside of the filtration chamber 610, a first position control surface 601, a second position control surface 602, and a third position control surface 603 are formed, in order, having an annular structure and gradually decreasing inner diameter.

[0121] The surface of the first sealing member 641 facing outward from the filtration chamber 610 abuts against the first position control surface 601, the surface of the first bearing 631 facing outward from the filtration chamber 610 abuts against the second position control surface 602, and the surface of the second sealing member 642 facing outward from the filtration chamber 610 abuts against the third position control surface 603.

[0122] In the above solution, a plurality of vertically oriented annular position restriction surfaces are formed on the inner wall of the stepped sealing support part 611, and are brought into contact with the left-side surfaces of the first sealing member 641, first bearing 631, and second sealing member 642, respectively, thereby restricting their movement in the axial direction of the water discharge joint 621. This prevents the fitting structure between the water discharge joint 621 and the sealing support part 611 from becoming loose when the filtering mechanism 620 is rotating.

[0123] In a preferred design of this embodiment, the outer diameter of one end of the water discharge joint 621 that is close to the outside of the filtering chamber 610 is smaller than the outer diameter of the other end. As a result, a fourth position restriction surface 604 having an annular structure and perpendicular to the axis of the water discharge joint 621 is formed on the outer wall of the water discharge joint 621. The surface of the first bearing 631 that faces the inside of the filtering chamber 610 abuts against the fourth position restriction surface 604.

[0124] By making the outer diameter of the left end of water discharge joint 621 smaller than that of the right end, a fourth position restriction surface 604 facing left is formed where the outer diameter suddenly changes, and is brought into contact with the surface on the right side of first bearing 631. In this way, both sides of first bearing 631 have a position restriction structure, further stabilizing the structure.

[0125] In this embodiment, one end of the sealing support part 611 remote from the filtering chamber 610, i.e., the left end of the sealing support part 611, is connected to the filtering chamber flange 650. A through hole 653 communicating with the water discharge joint 621 is provided in the center of the filtering chamber flange 650. The outer periphery of the through hole 653 extends to the opposite side of the sealing support part 611 to form a connection part 651.

[0126] Preferably, the surface of the filtration chamber flange 650 facing the sealing support portion 611 is provided with a protruding insert portion 652. The insert portion 652 is inserted into the opening at the left end of the sealing support portion 611.

[0127] In the above solution, the left end of the sealing support part 611 is connected to the filtering chamber flange 650. The filtering chamber flange 650 is formed with a connecting part 651. The outer diameter of the connecting part 651 is smaller than that of the sealing support part 611. The inner diameter of the connecting part 651 is preferably equal to that of the water outlet joint 621. When the filtering device 600 is installed in the washing machine, it is connected to the water return pipe via the connecting part 651. This is easier to install than the method of directly connecting the water return pipe to the left end of the sealing support part 611.

[0128] The right side of filtration chamber flange 650 is provided with an insertion portion 652 that is inserted into the opening at the left end of sealing support portion 611. This is convenient for positioning when assembling filtration chamber flange 650 and sealing support portion 611. Several fixing portions are provided on the outer peripheries of filtration chamber flange 650 and sealing support portion 611, respectively, and filtration chamber flange 650 and sealing support portion 611 are fixed to each other by inserting screws into these fixing portions.

[0129] In a further solution of this embodiment, a reinforcing rib 613 is provided on the outer wall of the sealing support 611, extending in the radial direction of the sealing support 611. The reinforcing rib 613 is connected to the surface of the filtering chamber 610 where the filtered water outlet 6102 is located.

[0130] Since the sealing support part 611 extends a certain length from the left end face of the filtration chamber 610, a reinforcing rib 613 is provided to support the peripheral side wall from the outside, thereby ensuring the strength of the sealing support part 611.

[0131] In this embodiment, the filtering mechanism 620 includes a filter mesh holder and a filter mesh 625. The filter mesh holder specifically includes a filter mesh support part 623 that is located inside the filtering chamber 610, has a surface covered with the filter mesh 625, and forms a filtering part together with the filter mesh 625, a water outlet joint 621 that is provided at the left end of the filter mesh support part 623 and rotatably inserted into the sealing support part 611, and a pivot support part 622 that is provided at the right end of the filter mesh support part 623 and rotatably connected to the filtering chamber 610.

[0132] In a further solution of this embodiment, the pivot support 622 at the right end of the filtering mechanism 620 extends along the pivot axis to the outside of the filtering chamber 610. The filtering chamber 610 is provided with an attachment opening 6104 through which the pivot support 622 is inserted. The pivot support 622 is rotatably connected to the attachment opening 6104 in a sealed manner.

[0133] The rotation support part 622 is used to connect a drive mechanism that rotates the filtration mechanism 620. The rotation support part 622 extends from the right end of the filtration chamber 610. In addition, a motor mounting part 624 for connecting the drive mechanism is provided at the right end of the rotation support part 622. This allows the drive mechanism to be installed outside the filtration chamber 610, thereby avoiding contact with water.

[0134] Furthermore, the outer periphery of the mounting port 6104 extends to the outside of the filtration chamber 610 along the axis of the rotation support part 622, thereby forming a sleeve part 612. A third seal member 643 is provided to cover the rotation support part 622. The inner wall of the third seal member 643 and the outer wall of the rotation support part 622 are hermetically connected, and the outer wall of the third seal member 643 and the inner wall of the sleeve part 612 are rotatably and hermetically connected.

[0135] A second bearing 632 is further provided between the sleeve portion 612 and the rotary support portion 622. The second bearing 632 is covered by the rotary support portion 622 and is located on the side of the third seal member 643 that faces the outside of the filtration chamber 610.

[0136] In the above solution, the third seal member 643 is provided to prevent water in the filtering chamber 610 from leaking out through the mounting opening 6104. The second bearing 632 provides a support for the pivot support member 622, ensuring smoother relative rotation between the pivot support member 622 and the sleeve member 612. The second bearing 632 is provided on the right side of the third seal member 643, so it does not come into contact with the water in the filtering chamber 610, preventing loss of function.

[0137] In a preferred design of this embodiment, the inner diameter of one end of sleeve portion 612, which is adjacent to the outside of filtration chamber 610, is smaller than the inner diameter of the other end. As a result, a fifth position restriction surface 605 having an annular structure and perpendicular to the axis of rotation support portion 622 is formed on the inner wall of sleeve portion 612. The surface of third seal member 643 facing the outside of filtration chamber 610 abuts against fifth position restriction surface 605.

[0138] The outer diameter of one end of rotation support part 622 that is close to the outside of filtration chamber 610 is smaller than the outer diameter of the other end. As a result, sixth position restriction surface 606 having an annular structure and perpendicular to the axis of rotation support part 622 is formed on the outer wall of rotation support part 622. The surface of second bearing 632 that faces the inside of filtration chamber 610 abuts against sixth position restriction surface 606.

[0139] In the above solution, the inner diameter of the right end of sleeve portion 612 is smaller than the inner diameter of the left end, and a fifth position restriction surface 605 facing leftward is formed at the point where the inner diameter suddenly changes and abuts against the right surface of third seal member 643. In addition, the outer diameter of the right end of rotation support portion 622 is smaller than the outer diameter of the left end, and a sixth position restriction surface 606 facing rightward is formed at the point where the outer diameter suddenly changes and abuts against the left surface of second bearing 632. With the above structure, movement of third seal member 643 and second bearing 632 in the axial direction of rotation support portion 622 is restricted, resulting in a stable structure.

[0140] Furthermore, the cross-sectional area of ​​the central region of the filter mesh support part 623 is constant, but the left and right ends have cone-shaped structures. In this way, by providing a part of the surface of the filter mesh 625 with an inclined shape, it is advantageous for adhering lint to fall off.

[0141] In this embodiment, a first bearing 631 and a second bearing 632 are provided at both ends of the filtering mechanism 620 to support it, thereby ensuring that the filtering mechanism 620 rotates smoothly and stably within the filtering chamber 610. Furthermore, a first seal member 641, a second seal member 642, and a third seal member 643 are provided to maximize the assurance that no water is present in the installation environment of the first bearing 631 and the second bearing 632. This prevents the first bearing 631 and the second bearing 632 from coming into contact with water, thereby avoiding loss of their functionality. [Example]

[0142] As shown in FIGS. 1 and 2, this embodiment provides a method for controlling the washing machine described in the first embodiment above to sufficiently discharge the wastewater in the filtering device 600.

[0143] Specifically, the control method includes:

[0144] That is, the circulation pump 400 is started, the circulation filtering line is opened, and the washing machine performs circulation filtering rinsing.

[0145] When the rinsing is completed, the circulation pump 400 is stopped.

[0146] The drive mechanism 660 is activated to rotate the filtration mechanism 620 within the filtration chamber 610 .

[0147] When the first set condition is reached, the circulation pump 400 is started, and the pollution discharge control valve 241 is opened to open the pollution discharge pipeline 240 .

[0148] When the second set condition is reached, the circulation filtration line is shut off.

[0149] Preferably, after the first set condition is reached, the drive mechanism 660 remains activated to continue rotating the filtering mechanism 620 .

[0150] In this embodiment, opening the circulation filtration pipeline includes the switching device 270 opening the filtration device 600 and the discharge end of the circulation pump 400, and opening the return water pipeline 230 by opening the return water control valve 231. Also, blocking the circulation filtration pipeline includes the switching device 270 opening the external discharge pipeline 250 and the discharge end of the circulation pump 400.

[0151] As can be appreciated, the above-mentioned shutoff of the circulation filtration line may be achieved by stopping the circulation pump 400.

[0152] In the above solution, during the rinsing process, the washing machine circulates and filters the rinse water, so that the filter device 600 and the circulating filtering line are always filled with rinse water.

[0153] When the rinsing is completed and the circulation pump 400 is stopped, the water in the drain pipe 210 and the circulation pipe 220 flows downward due to gravity, and can flow back until the water level in the drain pipe 210 and the water level in the water tank 100 are aligned. Then, the pipes from above the water level to the filtration device 600 are filled with air. However, because the filtration device 600 is lower than the circulation pipe 220, the water inside does not flow back through the circulation pipe 220. At the same time that the circulation pump 400 is stopped, the return water control valve 231 is also closed. At this time, the pollutant discharge control valve 241 is also closed. As a result, the water inside the filtration device 600 remains in the filtration chamber 610 and is not discharged to the outside.

[0154] When the drive mechanism 660 is activated, the filter mechanism 620 rotates at high speed, causing centrifugal force to peel off lint and other contaminants adhering to the surface of the filter mechanism 620. At this time, the return water control valve 231 and the contaminant discharge control valve 241 are both closed, preventing water from flowing out of the filter chamber 610. The high-speed rotation of the filter mechanism 620 also disturbs the water flow within the filter chamber 610. This disturbed water flow generates a certain impact force on the surface of the filter mechanism 620, moving the cleaning particles 680 and causing friction and collisions with the inner and outer walls of the filter chamber 610, further enhancing the removal of lint. The lint and other contaminants peeled off from the surface of the filter mechanism 620 are mixed into the water within the filter chamber 610.

[0155] When the circulation pump 400 is started and the pollutant discharge control valve 241 is also opened to open the pollutant discharge line 240, the polluted water in the filtration device 600 can be discharged through the pollutant discharge port 6103, but the cleaning particles 680 are blocked by the shield plate 690 and remain inside the filtration chamber 610. When the circulation pump 400 is started, air in the drain line 210 and the circulation line 220 is forced into the filtration device 600, and the polluted water containing lint in the filtration device 600 is completely discharged through the pollutant discharge port 6103 by air pressure. This prevents polluted water from remaining in the filtration device 600 and improves the cleaning effect of the filtration device 600. Furthermore, because the pollutant discharge control valve 241 opens when the circulation pump 400 is started, the pressure generated when air is introduced into the filtration device 600 is guaranteed. This ensures that the polluted water in the filtration device 600 is fully discharged.

[0156] To prevent the water in water tank 100 from passing through circulation pipe 220 and entering filtration device 600 again after the wastewater in filtration device 600 has been completely discharged, a second set condition is preset in the washing machine. When the second set condition is reached, the circulation filtration pipe is blocked and the transport of water in water tank 100 to filtration device 600 is stopped.

[0157] In a specific solution of this embodiment, the first set condition may be that the circulation pump 400 stops at a first set time t1, and the second set condition may be that the circulation pump 400 starts at a second set time t2.

[0158] In the above solution, the specific values ​​of the first set time t1 and the second set time t2 can be obtained in advance through a large amount of experiments and can be directly written into the control program of the washing machine.

[0159] Specifically, the value of the first set time t1 is approximately the maximum time required for the water level in the drain pipe 210 to stop dropping after it starts. The value of the second set time t2 is approximately the minimum time required for the water level in the drain pipe 210 to rise to near the top of the drain pipe 210 after the circulation pump 400 is started. This ensures the period during which the circulation pump 400 is stopped, allowing a larger amount of air to enter the pipe. This also effectively prevents water from re-entering the filtration device 600 after the circulation pump 400 is started.

[0160] In another embodiment of the present invention, the first and second set conditions may be water levels. Specifically, the first set condition is that the water level in the pipeline between the circulation pump 400 and the filtration device 600 reaches a first set value H1. The second set condition is that the water level in the pipeline between the circulation pump 400 and the filtration device 600 reaches a second set value H2. <H2である。

[0161] In this embodiment, the water level specifically refers to the height of the water level in the drain pipe 210. To detect the water level in the drain pipe 210, a water level detection device may be installed in the drain pipe 210 of the washing machine.

[0162] In the above solution, the first set value H1 is greater than the maximum water level of the washing machine and is as close as possible to the maximum water level, thereby ensuring that the water level in the drain pipe 210 can drop to the first set value H1 after the circulation pump 400 is stopped.

[0163] There is generally a certain time lag between when the washing machine receives a signal indicating that the water level in drain pipe 210 has reached second set value H2 and when switching device 270 opens drain pipe 210 and external discharge pipe 250. To avoid a delayed response that could cause water to re-enter filtration device 600 after circulation pump 400 is started, a certain difference value ΔH must exist between second set value H2 and the water level corresponding to the upper end of drain pipe 210. The specific value of this difference value ΔH can be obtained through extensive experiments conducted in advance. This ensures that there is sufficient response time to control switching device 270 to complete water channel switching after the washing machine receives a signal indicating that the water level has reached second set value H2.

[0164] In a further solution of this embodiment, if the washing machine determines that the current operating process is the final rinse stage of the current washing program, it stops the circulation pump 400 after the rinse is completed, and starts the circulation pump 400 after the first set condition is reached.

[0165] If the washing machine determines that the current operating process is not the final rinse stage of the current washing program, after the rinse is completed, it keeps the circulation pump 400 operating, and when the third set condition is reached, it shuts off the circulation filtering line.

[0166] In the above solution, in the intermediate rinse stage, the washing machine needs to continue operation after that, i.e., there is still rinse water to be circulated and filtered through filtration device 600. Therefore, in this case, it is not necessary to completely drain the wastewater containing lint from filtration device 600, but only to remove the lint adhering to the surface of filtration mechanism 620.

[0167] When the rinsing is completed, the return water control valve 231 closes, the pollutant discharge control valve 241 opens, and the circulation pump 400 remains in operation. The water in the water tank 100 continues to be transported toward the filtration device 600 by the action of the circulation pump 400, washing the inside of the filtration device 600. The washed-out wastewater is discharged into the pollutant discharge pipe 240 through the pollutant discharge port 6103.

[0168] In this embodiment, the third set condition may be a third predetermined time t3 after the end of rinsing. This value is obtained in advance through experimentation and written into the control program. This ensures that most of the lint adhering to the surface of the filter mechanism 620 is removed.

[0169] Alternatively, the circulation filtration line may be blocked when the water level in water tank 100 drops to a preset value ΔH1. That is, switching device 270 may be controlled to open drain line 210 and external discharge line 250. Then, circulation pump 400 continues to operate, thereby discharging the water remaining in water tank 100 from the washing machine.

[0170] In a preferred solution of this embodiment, after the intermediate rinse is completed, the driving mechanism 660 is activated to rotate the filtering mechanism 620 at high speed within the filtering chamber 610, thereby agitating the water within the filtering chamber 610. This causes the adhering lint to be peeled off the surface of the filtering mechanism 620 by the combined effects of centrifugal force and the agitated water flow, and mixed into the water within the filtering chamber 610, after which it is discharged from the filtering chamber 610 through the contaminant discharge port 6103. This improves the efficiency of lint removal.

[0171] In this embodiment, the washing machine stops and then starts the circulation pump 400 only at the end of the final rinse cycle, thereby completely discharging the wastewater from the filtration device 600. Meanwhile, at the end of the intermediate rinse cycle, the circulation pump 400 remains in operation, thereby avoiding the impact on the service life of the circulation pump 400 caused by frequent start and stop of the circulation pump 400 during the operation of the washing machine.

[0172] In this embodiment, the washing machine also cleans the filtering device 600 after the washing operation is completed. The specific control method is as follows.

[0173] Circulation pump 400 is started. Furthermore, switching device 270 opens the discharge end of circulation pump 400 and filtration device 600, and opens return water control valve 231. As a result, the washing machine performs circulation filtering washing.

[0174] When the cleaning is completed, the return water control valve 231 closes and the pollutant discharge control valve 241 opens while the circulation pump 400 remains in operation.

[0175] When the fourth set condition is reached, the switching device 270 opens the discharge end of the circulation pump 400 and the external discharge pipe 250 .

[0176] The fourth set condition may be a fourth predetermined time t4 reached after the end of cleaning, or a drop in the water level in the water tank 100 reaching a preset value ΔH2.

[0177] After the washing is completed, a further circulation filtering rinse must be performed in the subsequent steps of the washing program, so as in the case of the intermediate rinse, it is not necessary to completely drain the wastewater from the filtration device 600. Therefore, the circulation pump 400 may be kept operating without being stopped.

[0178] In this embodiment, after the washing and intermediate rinse cycles are completed, the washing machine controls circulation pump 400 to maintain its operating state, transporting water from water tank 100 to filtration device 600 for rinsing. The rinsing wastewater is then discharged through contaminated outlet 6103 of filtration device 600. After the final rinse cycle is completed, circulation pump 400 is stopped, waits for air to enter the pipeline, and then starts again, forcing the air into filtration device 600 and completely discharging the wastewater. This ensures that no wastewater remains in filtration device 600 after the washing machine is shut down, effectively preventing bacterial growth. Furthermore, because the washing machine stops and then starts circulation pump 400 only after the final rinse cycle is completed, unnecessary start-and-stop operations of circulation pump 400 are reduced, thereby extending the service life of circulation pump 400.

[0179] 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 through a preferred embodiment, it is not intended to limit the present invention. Within the scope of the technical solution of the present invention, slight changes or modifications that can be made by those skilled in the art using the technical content presented above are equivalently modified equivalent embodiments, and none of them deviate from the content of the technical solution of the present invention. Furthermore, any simple modifications, equivalent variations, and modifications made to the above embodiments based on the technical essence of the present invention all fall within the scope of the solution of the present invention. [Explanation of symbols]

[0180] 10. Cabinet 100 Water Tank 110 Window Gasket 210 Drainage pipeline 220 Circulation pipeline 230 Water ring pipe 231 Return water control valve 240 Pollution Discharge Pipes 241 Pollution Discharge Control Valve 250 External discharge pipe 260 Water tank drain pipe 270 Switching Device 400 Circulation Pump 500 Recovery Device 501 Filtered foreign matter 510 Housing 520 Filtration Assembly 531 Chamber 1 532 Second Chamber 600 Filtration equipment 601 First position control surface 602 Second position control surface 603 Third position control surface 604 4th position control surface 605 5th position control surface 606 6th Position Control Surface 610 Filtration Chamber 6101 Water inlet 6102 Filtered water outlet 6103 Pollution outlet 6104 Mounting port 611 Sealing support part 612 Sleeve part 613 Reinforcing rib 620 Filtration mechanism 621 Water outlet joint 622 Rotation support part 623 Filter mesh support part 624 Motor mounting part 625 Filter Mesh 631 First bearing 632 Second bearing 641 First sealing member 642 Second seal member 643 Third seal member 650 Filtration Chamber Flange 651 Connection 652 Insertion section 653 Through hole 660 Drive Mechanism 680 Cleaning particles 690 Shielding board 691 Water vent 692 Through hole

Claims

1. A filtering device comprising: a filtering chamber having a water inlet, a filtered water outlet, and a contaminant outlet for discharging filtered foreign matter to the outside; and a filtering mechanism having a filtering unit and a water discharge joint, rotatably provided inside the filtering chamber, dividing the inside of the filtering chamber into an outer storage chamber and an inner storage chamber, and filtering water that has entered the filtering chamber, a partition plate is provided within the filtration chamber to divide the filtration chamber into a first space and a second space, and a water-passing structure is provided between the partition plate or the partition plate and an inner wall of the filtration chamber to communicate the first space with the second space; the water inlet communicates with the first space and also communicates with the outer storage chamber, the filtered water outlet communicates with the inner storage chamber, and the filtered water outlet and the pollutant discharge port communicate with the second space; cleaning particles provided in the first space within the filtration chamber, which generate friction and collision accompanying the water flow to clean the inner wall of the filtration chamber and the outer wall of the filtration mechanism; an outer periphery of the filtered water outlet extends toward the outside of the filtering chamber to form a sealing support; The filtering unit is provided on the same side as the water inlet with respect to the shielding plate and filters water that has entered the first space. The water discharge joint has one end connected to the filtering section and the other end passing through the blocking plate and rotatably inserted into the sealing support section.

2. The water passage structure is a number of water passage holes provided in the shielding plate, and the width of the water passage holes is D １ , where d is the width of the cleaning particle, D １ 2. The filtering device according to claim 1, wherein <d.

3. The outer peripheral portion of the shielding plate is spaced apart from the inner wall of the filtration chamber, The water passage structure is a gap between the shield plate and the inner wall of the filtration chamber, and the width of the gap is D ２ , where d is the width of the cleaning particle, D ２ 2. The filtering device according to claim 1, wherein <d.

4. 4. The filtering device of claim 3, wherein the density of the cleaning particles is less than that of water.

5. A filtration device described in any one of claims 1 to 4, characterized in that a bearing is provided over the water discharge fitting, and a sealing member is provided on the side of the bearing facing the inside of the filtration chamber, and the sealing member blocks the gap between the water discharge fitting and the sealing support part.

6. 6. The filtering device according to claim 5, wherein the blocking plate is provided with a through hole through which the discharge joint passes, and the through hole and the outer wall of the discharge joint are clearance-fitted.

7. 5. The filtering device according to claim 1, wherein the water inlet and the pollutant outlet are both oriented perpendicular to the axial direction of the filtering mechanism.

8. A filtration device described in any one of claims 1 to 4, characterized in that the filtration chamber has a columnar structure, the filtered water outlet is provided on the end face of one end of the filtration chamber, the contaminant discharge port is provided adjacent to the end where the filtered water outlet is located, and the water inlet is provided adjacent to the other end of the filtration chamber.

9. A water tank and a circulation filtration pipe whose water inlet and outlet are each connected to the water tank; A washing machine comprising: the filtration device according to any one of claims 1 to 4, which is provided in the circulation filtration pipe.

10. Further, the filter includes a collection device communicating with the contaminant outlet and used to collect the filtered particles being discharged; 10. The washing machine according to claim 9, wherein the pollutant discharge port is connected to a recovery device through a pollutant discharge pipe, and the pollutant discharge pipe is provided with a pollutant discharge control valve for controlling opening and closing of the pollutant discharge pipe.

11. The recovery device includes: a housing having a collection chamber therein; a filtration assembly disposed within the collection chamber and dividing the collection chamber into a first chamber and a second chamber; The contaminated outlet is connected to the first chamber, and the contaminated water containing the contaminants enters the first chamber, passes through the filter assembly to be filtered, and then enters the second chamber, and the contaminants are collected in the first chamber; 11. The washing machine according to claim 10, wherein the second chamber is provided with a water outlet for discharging filtered clean water.

12. The washing machine described in Claim 11, characterized in that the washing machine further includes a housing, the water tank and filtration device are both provided within the housing, and the housing is provided in the housing so as to be insertable / removable.

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