Clothes treatment device and control method thereof

Abstract

The clothing treatment device and its control method include a first tub mechanism and a second tub mechanism used for treating clothing, and a filter assembly (3) having two filter units (32), with the drain outlets of the two tubs connected to a drain pipe (5) of the clothing treatment device via one-to-one corresponding filter units (32). The drain outlets of the first tub mechanism (1) and the second tub mechanism (2) pass through the corresponding filter units (32) and are then connected to the drain pipe (5) that runs through the clothing treatment device together, and the two filter units (32) are integrated into one filter assembly (3), allowing the first tub mechanism (1) and the second tub mechanism (2) to filter independently in the corresponding filter units (32), resulting in a high degree of integration of the filtration mechanism of the entire clothing treatment device and a more attractive appearance.

Description

[Technical Field]

[0001] The present invention relates to the field of clothing treatment, and more particularly to a clothing treatment device and a control method thereof. [Background technology]

[0002] Currently, there are many types of multi-tank laundry treatment devices, and how to treat the wastewater between the multiple tanks is an issue that major home appliance companies are focusing on research on.Since the water discharged from a laundry treatment device usually contains foreign matter such as mud, sand, hair, coins, and toothpicks, the water discharged from each tank must be filtered before being discharged outside the device.

[0003] In conventional multi-tank laundry treatment machines, filters are placed in each tub, and the filtering and draining processes are performed independently, which makes the overall structure of the machine complicated and wastes materials. At the same time, designers place the corresponding filters at the rear of the machine in consideration of aesthetic design, but users have to move the machine to operate it when cleaning, which is inconvenient for users when cleaning regularly.

[0004] It is with this in mind that the present invention is particularly presented. Summary of the Invention [Problem to be solved by the invention]

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a clothing treatment device in which the drain outlets of the first and second tub mechanisms pass through corresponding filter units and are then connected to a drain pipe that runs through the clothing treatment device, and the two filter units are integrated into one filter assembly, allowing the first and second tub mechanisms to filter independently in the corresponding filter units, while the overall filtering mechanism of the clothing treatment device has a high degree of integration and a more aesthetically pleasing appearance.

[0006] Another object of the present invention is to provide a control method. [Means for solving the problem]

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is as follows: A clothing treatment device, a first tub mechanism and a second tub mechanism used for treating clothes; The filter assembly includes two filter sections, and the drain outlets of the two tubs are connected to the drain pipes of the laundry treatment device via the filter sections that correspond one-to-one to each other.

[0008] Furthermore, the filter assembly a housing disposed on the front side of the clothing treatment device; a partition plate disposed in the housing to divide the housing into two filter chambers, and two filter units disposed in the filter chambers, respectively.

[0009] Furthermore, each of the two filter chambers is provided with a water inlet and a water outlet, The drain outlet of the first tub mechanism is connected to the water supply port of one of the filter chambers via a first hose, and the water outlet of the filter chamber is connected to the drain pipe of the laundry treatment device via a second hose, forming a first waterway; The drain outlet of the second tank mechanism is connected to the water supply inlet of the other of the filter chambers via a third hose, and the water outlet of the filter chamber is connected to the drain pipe of the clothing treatment device via a fourth hose, forming a second waterway.

[0010] Furthermore, a three-way joint is connected between the first water channel and the second water channel and a drain pipe of the clothing treatment device, and a drain pump is connected to the water outlet of the three-way joint. Furthermore, the filter assembly The two filter sections are mounted together and further include an end cap removably connected to the housing.

[0011] Furthermore, the first hose and the third hose are both provided with a pressure booster drain valve. Furthermore, at least two check assemblies having opposite flow directions are installed on the partition plate, and the check assemblies include: a communication pipe installed on the partition plate; a sealing plug that is movably installed in the communicating pipe and that seals the opening of the communicating pipe; a restoring member having one end attached to the inner wall of the communicating pipe and the other end connected to the sealing plug, the restoring member providing a restoring force for sliding the sealing plug along the communicating pipe.

[0012] The present invention further provides a control method applicable to any of the above-described laundry treatment devices, comprising the following steps: The water pressure P of the wash water flowing out from the outlets of both filter parts is detected, and it is determined whether it is equal to or greater than a preset water pressure PO. If it is, the water is drained normally; if not, the two filter parts are connected, and the wash water from the filter part that can be drained normally is used to rinse the other filter part.

[0013] Furthermore, after using the wash water from the filter part that can be drained normally to rinse the other filter part, the drain outlets of the first tank mechanism and the second tank mechanism are closed, and the drain pump is used to pass external water through the filter part that can be drained normally to backwash the other filter part.

[0014] Further, detecting the operating states of the first tank mechanism and the second tank mechanism; The method further includes determining and controlling the time when the first tank mechanism and the second tank mechanism operate with the corresponding filter units, based on the operating states of the first tank mechanism and the second tank mechanism. [Effects of the Invention]

[0015] After adopting the above technical solutions, the present invention has the following beneficial effects compared with the prior art: (1) The present invention uses a filter assembly with two filter units, so that the drain outlets of the first and second tub mechanisms pass through the corresponding filter units before connecting to a drain pipe that runs through the clothing treatment device. When the first and second tub mechanisms discharge wash water, the water passes through the corresponding filter units independently and is filtered independently. Then, both filtered wash waters can be passed through the filter assembly and discharged into the drain pipe of the clothing treatment device. By integrating the two filter units into one filter assembly, the degree of integration of the filtration mechanism of the entire clothing treatment device is improved, resulting in a more aesthetically pleasing appearance.

[0016] (2) The present invention connects a three-way joint between the first water channel and the second water channel and the drain pipe of the clothing treatment device, connects a drain pump to the outlet of the three-way joint, and connects the drain pump to the drain pipe, so that the wash water filtered by the first tank mechanism and the second tank mechanism can be discharged simultaneously, reducing the installation of corresponding drain pumps and making the structural design of the clothing treatment device's drain system more compact and rational.

[0017] (3) The present invention installs two filter units together on an end cap, and the end cap is detachably connected to the housing, thereby realizing that two filter units on one end cap can be installed in the filter chamber, while at the same time ensuring that the end cap can be normally detachably connected to the housing, and making the structure compact.

[0018] (4) The present invention employs a method in which a booster drain valve is provided on both the first hose and the third hose, and the positions between the first tank mechanism and the second tank mechanism are installed one above the other. By installing the booster drain valve, the water pressure is increased during drainage, making it easier for the water channel located in the lower filter section to perform the upward drainage operation.

[0019] (5) The present invention installs at least two check assemblies with opposite flow directions on the partition plate, and after one of the filter holes is blocked, the other pressure booster control valve is controlled to increase the water pressure of the drainage, causing an impact on the sealing plug in the check assembly of the partition plate, and the two filter chambers are connected by a connecting pipe. The wash water that passes through the partition plate rinses the blocked filter section, so that the mud, sand, and lint in the filter section are washed away from the filter holes, and it is further ensured that the blocked filter section can continue to drain water.

[0020] Specific embodiments of the present invention will now be described in more detail with reference to the drawings. [Brief explanation of the drawings]

[0021] The diagrams are used as part of the present invention to provide a further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to interpret the present invention, but do not unduly limit the present invention. Needless to say, the diagrams described below are only examples, and those skilled in the art can derive other diagrams based on these diagrams without performing creative activities.

[0022] [Figure 1] FIG. 1 is a schematic diagram of a connection structure of a clothing treatment device according to an embodiment of the present invention. [Figure 2] FIG. 2 is a cross-sectional view of a partition plate of a laundry treatment device according to an embodiment of the present invention. [Figure 3] FIG. 3 is a flowchart of a method for controlling a clothing processing device according to an embodiment of the present invention. [Figure 4] FIG. 4 is a flowchart of a method for controlling a clothing processing device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0023] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will refer to the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments. The following embodiments are used to explain the present invention but are not used to limit the scope of the present invention.

[0024] In describing the present invention, the orientations or positional relationships indicated by terms such as "upper," "lower," "front," "rear," "left," "right," "vertical," "inner," and "outer" are based on the orientations or positional relationships shown in the drawings and are intended merely to facilitate and simplify the description of the present invention, and are not intended to indicate or imply that a specified device or part is in a particular orientation or is constructed or operated in a particular orientation, and should not be construed as limiting the present invention.

[0025] Furthermore, in the description of the present invention, unless otherwise clearly specified or limited, the terms "attached," "coupled," and "connected" should be understood in a broad sense. For example, they may mean fixedly connected, detachably connected, integrally connected, mechanically connected, or electrically connected. They may also mean directly connected or indirectly connected via an intermediate medium. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0026] As shown in FIGS. 1 to 4, the laundry treatment device according to the present invention includes a first tub mechanism 1 and a second tub mechanism 2 used for treating laundry, The filter assembly 3 includes two filter sections 32, and the drain outlets of the two tubs are connected to the drain pipe 5 of the laundry processing device via the filter sections 32 that correspond to each other.

[0027] In the present invention, the clothing treatment device is equipped with two clothing treatment drums, a first tub mechanism 1 and a second tub mechanism 2, each of which includes an inner tub and an outer tub. The inner tub is rotatably mounted in the outer tub, and a motor assembly and a reducer are mounted at the bottom of the outer tub. The motor assembly and the reducer work together to drive the inner tub. Both the first tub mechanism 1 and the second tub mechanism 2 can perform clothing treatment processes such as washing, spin-drying, and drying on clothing.

[0028] The clothing treatment device further includes a filter assembly 3, which is provided with two filter sections 32. The wash water discharged from the drain outlets of the first tub mechanism 1 and the second tub mechanism 2 is filtered by passing through the corresponding filter sections 32, and then both pass through the drain pipe 5 of the clothing treatment device and are discharged into the sewer pipe.

[0029] The filter assembly 3 installed in the clothing treatment device is equipped with two filter sections 32, so that when the first tub mechanism 1 and the second tub mechanism 2 discharge wash water, the water passes through the corresponding filter sections 32 independently and is filtered independently, and then both filtered wash waters can be discharged through the drain pipe 5 of the clothing treatment device via the filter assembly 3. By integrating the two filter sections 32 into one filter assembly 3, the degree of integration of the filtering mechanism of the entire clothing treatment device is improved, resulting in a more attractive appearance.

[0030] Furthermore, the filter assembly 3 includes a housing 31 and a partition plate 33 . The housing 31 is installed at the front side of the clothing treatment device, The partition plate 33 is installed in the housing 31 and divides the housing 31 into two filter chambers 34, and the two filter units 32 are installed in the filter chambers 34, respectively.

[0031] In the present invention, the housing 31 of the filter assembly 3 may be prismatic or cylindrical, and is designed adaptively according to the shape of the two filter portions 32. A partition plate 33 is installed in the chamber of the housing 31 of the filter assembly 3, and the partition plate 33 is integrally formed with the housing 31 by injection molding. The partition plate 33 divides the interior of the housing 31 into two filter chambers 34, and the two filter units 32 are attached to the corresponding filter chambers 34.

[0032] The housing 31 of the filter assembly 3 forms two filter chambers 34 each having a filter section 32 therein due to the partitioning action of the partition plate 33, and the first tank mechanism 1 and the second tank mechanism 2 are each connected to the corresponding filter chamber 34, independently filtering the wash water discharged through the corresponding filter section 32, ensuring the filtering effect.

[0033] Furthermore, each of the two filter chambers 34 is provided with a water inlet and a water outlet. The drain outlet of the first tank mechanism 1 is connected to the water supply inlet of one of the filter chambers 34 via a first hose 11, and the water outlet of the filter chamber 34 is connected to the drain pipe 5 of the clothing treatment device via a second hose 12, forming a first waterway.

[0034] The drain outlet of the second tank mechanism 2 is connected to the water supply inlet of the other of the filter chambers 34 via a third hose 21, and the water outlet of the filter chamber 34 is connected to the drain pipe 5 of the clothing treatment device via a fourth hose 22, forming a second waterway. According to the present invention, each of the two filter chambers 34 is provided with a water inlet and a water outlet, the first tank mechanism 1 is connected to the water inlet of the corresponding filter chamber 34 via a first hose 11, and the water outlet of the filter chamber 34 discharges washing water via a second hose 12, and further, the first tank mechanism 1 is connected to the corresponding filter chamber 34 via the first hose 11 and the second hose 12 to form a first water passage.

[0035] The installation of the second tank mechanism 2 is the same as the installation of the first tank mechanism 1, that is, the second tank mechanism 2 is connected to the water inlet of the corresponding filter chamber 34 via the third hose 21, and the water outlet of the filter chamber 34 discharges washing water via the fourth hose 22, and further, the second tank mechanism 2 is connected to the corresponding filter chamber 34 via the third hose 21 and the fourth hose 22 to form a second water passage.

[0036] As a result, the first tank mechanism 1 and the second tank mechanism 2 communicate with the corresponding filter chambers 34, forming a first water passage and a second water passage. The wash water in the corresponding first tank mechanism 1 and the second tank mechanism 2 is filtered and discharged through the first water passage and the second water passage, respectively. The washing water of different tanks is independently filtered in the two chambers of one filter assembly 3, ensuring a high filtering effect.

[0037] Furthermore, a three-way joint 7 is connected between the first water channel and the second water channel and a drain pipe 5 of the laundry treatment device, and a drain pump 4 is connected to the water outlet of the three-way joint 7. In the present invention, the ends of the first water passage and the second water passage, i.e., the ends of the second hose 12 and the fourth hose 22, are connected to two inlets of a three-way joint 7, and the outlet of the three-way joint 7 is connected to the drain pipe 5 of the clothing treatment device, so that the first tank mechanism 1 and the second tank mechanism 2 collect the filtered washing water in the drain pipe 5 of the clothing treatment device.

[0038] In addition, by connecting a drain pump 4 to the drain pipe 5, the washing water filtered by the first tank mechanism 1 and the second tank mechanism 2 can be discharged simultaneously, eliminating the need for a corresponding drain pump 4, thereby making the structural design of the drain system of the laundry treatment device more compact and rational.

[0039] Furthermore, the filter assembly 3 further includes an end cap, in which the two filter sections 32 are both installed, and the end cap is detachably connected to the housing 31 . In the present invention, two filter units 32 are attached to the end surface of the end cap. The end cap and the housing 31 are detachably connected. Specifically, they may be connected and fixed by a fitting method or a screwing method.

[0040] Taking the fitting method as an example, at least two elastic engagement claws are provided on the side wall of the housing 31 facing the end face of the end cap, engagement parts corresponding to the elastic engagement claws are provided on the side wall of the housing 31, and a seal ring is provided on the side wall where the end face of the end cap abuts against the housing 31 to ensure the sealing performance of the connection between them. When the end cap and the housing 31 are connected by the fitting method, the two filter parts 32 and the end face of the end cap are connected by a fixing method such as adhesive.

[0041] In the threaded connection method, a rotatable rotary plate is installed on the end face of the end cap, and two filter units 32 are fixed to the rotary plate by adhesive or other fixing methods. A male thread is installed on the outer peripheral wall of the end cap, and a corresponding female thread is installed on the housing 31. Similarly, a seal ring is installed on the side wall that comes into contact when the end cap and the housing 31 are connected, ensuring a tight seal after connection. Both methods enable two filter units 32 on one end cap to be installed in the filter chamber 34, while at the same time ensuring that the end cap can be properly detachably connected to the housing 31.

[0042] Furthermore, the first hose 11 and the third hose 21 are both provided with pressure booster drain valves. In the present invention, a booster drain valve is installed between the first hose 11 and the corresponding filter unit 32, and this valve is designated as a first booster drain valve. Similarly, a booster drain valve is installed between the third hose 21 and the corresponding filter unit 32, and this valve is designated as a second booster drain valve. Since the first tank mechanism 1 and the second tank mechanism 2 are positioned vertically, the installation of the first or second booster drain valve increases the water pressure during drainage, making it easier for the water channel located in the lower filter unit 32 to perform the upward drainage operation.

[0043] Furthermore, at least two check assemblies 6 are installed on the partition plate 33, with the flow directions being opposite to each other. The check assemblies 6 are: A communication pipe 61 installed on the partition plate 33; a sealing plug 62 movably installed in the communicating pipe 61 for sealing the opening of the communicating pipe 61; and a restoring member 63 having one end attached to the inner wall of the communicating pipe 61 and the other end connected to the sealing plug 62, for providing a restoring force for the sealing plug 62 to slide along the communicating pipe 61.

[0044] In the present invention, at least two through holes are installed in the partition plate 33, and a communicating pipe 61 is inserted into each of the two through holes, with the pipe ends of the two communicating pipes 61 installed in opposite directions. Specifically, one end of the communicating pipe 61 has a tapered structure, and the sealing plug 62 is inserted from one end of the communicating pipe 61 to the pipe end with the tapered structure. The sealing plug 62 is connected to a restoring member 63, and the restoring member 63 is connected to the side wall of the communicating pipe 61 on the side away from the pipe end. Specifically, a restoring spring is selected as the restoring member 63.

[0045] Normally, the restoring member 63 abuts the sealing plug 62 against the end portion of the communicating pipe 61, thereby ensuring that the filter chamber 34, which is separated from the housing 31 by the entire partition plate 33, is not in communication. When the first tub mechanism 1 and the second tub mechanism 2 perform filtered drainage through the filter assembly 3 for a long period of time, foreign matter such as mud, sand, and lint accumulates on the filter element 32 in the filter chamber 34, blocking the filter holes of the corresponding filter element 32. When this occurs, the other pressure-boosting control valve 8 is controlled to increase the drainage water pressure, causing the water pressure to impact the sealing plug 62 in the check assembly 6 of the partition plate 33, deforming the return member 63. This allows the two filter chambers 34 to communicate with each other through the connecting pipe 61. At the same time, wash water passing through the partition plate 33 rinses the blocked filter element 32, flushing the mud, sand, and lint from the filter holes and ensuring that the blocked filter element 32 can continue draining. This extends the service life of the entire filter assembly 3 in the laundry treatment device and avoids the need for frequent removal and cleaning of the filter assembly 3.

[0046] The present invention further provides a control method equipped with any of the above-described clothing treatment devices, specifically including the following steps: detect the water pressure P of the wash water flowing out from the water outlets of both filter sections 32, determine whether it is equal to or greater than a predetermined water pressure PO, and if so, drain the water normally; if not, connect both filter sections 32, and use the wash water from the filter section 32 that can be drained normally to rinse the other filter section 32.

[0047] In the present invention, a pressure sensor is installed on the side wall of the outlet of the second drain pipe 5 or the corresponding filter chamber 34, and a pressure sensor is similarly installed on the side wall of the outlet of the fourth discharge pipe 5 or the corresponding filter chamber 34.

[0048] When the two filter chambers 34 are draining, the two corresponding pressure sensors detect in real time the water pressure P of the flushing water flowing out from the outlets of both filter units 32, and compare it with the preset water pressure PO in real time. If the water pressure P of the flowing out flushing water is always equal to or greater than the preset water pressure PO, it indicates that the corresponding filter unit 32 is performing the filtering operation normally, and the corresponding draining operation is performed normally.

[0049] If the water pressure P of the wash water flowing out of one of the filter sections 32 is lower than the preset water pressure P, it indicates that the filter section 32 is clogged. At this time, the pressure boost control valve 8 connected to the other filter section 32 is controlled to increase the water pressure, allowing the check assembly 6 on the partition plate 33 to flow. The two filter chambers 34 are then connected via the connecting pipe 61. The wash water passing through the partition plate 33 rinses the clogged filter section 32, flushing out mud, sand, and lint from the filter holes and ensuring that the clogged filter section 32 can continue to drain. This also extends the service life of the entire filter assembly 3 in the laundry treatment device and avoids the need to frequently remove and clean the filter assembly 3.

[0050] Furthermore, after using the wash water from the filter part 32 that can be drained normally to rinse the other filter part 32, the drain outlets of the first tank mechanism 1 and the second tank mechanism 2 are closed, and the drain pump 4 is used to pass external water through the filter part 32 that can be drained normally to backwash the other filter part 32.

[0051] According to the present invention, after one normally draining filter section 32 has rinsed the other blocked filter section 32, the drain pump 4 uses the water discharged in the previous process to suck in the washing water, and takes it in through the corresponding second hose 12 or fourth hose 22, and passes it from the normally draining filter section 32 through the check assembly 6 in the partition plate 33 to rinse the blocked filter section 32, so that the mud, sand and lint in the filter section 32 are further washed out of the filter holes, and ensure that the blocked filter section 32 can continue to drain.

[0052] In order to ensure that the washing water backwashed by the drainage pump 4 enters the corresponding first tank mechanism 1 and second tank mechanism 2 along the first hose 11 and third hose 21, the corresponding pressure increase control valve 8 is closed at this time, thereby ensuring that the backwashed washing water can be discharged from the second hose 12 or the fourth hose 22 connected to the blocked filter section 32.

[0053] Furthermore, detecting the operating states of the first tank mechanism 1 and the second tank mechanism 2; The method further includes checking and controlling the time when the first tank mechanism 1 and the second tank mechanism 2 operate with the corresponding filter unit 32 based on the operating states of the first tank mechanism 1 and the second tank mechanism 2.

[0054] In the present invention, the operating states of the first tub mechanism 1 and the second tub mechanism 2 are detected in real time and the corresponding washing states of the first tub mechanism 1 and the second tub mechanism 2 are determined. Both the first tub mechanism 1 and the second tub mechanism 2 can perform washing, spin-drying, and drying processes on clothes.

[0055] Specifically, one tub mechanism is used for the washing and spin-drying processes, and the other tub mechanism is used for the spin-drying process. Take the example of a situation where the first tub mechanism 1 is required to perform the washing and spin-drying processes, and the second tub mechanism 2 is required to perform the drying process. In this case, the pressure increase control valve 8 corresponding to the first tub mechanism 1 is controlled and opened to first drain the water during the washing and spin-drying processes of the first tub mechanism 1. Then, the pressure increase control valve 8 corresponding to the second tub mechanism 2 is opened to open, and the pipe pressure of the second water passage of the second tub mechanism 2 is increased. This allows the hot air generated by the drying process to dry the entire pipe of the second water passage and the corresponding filter unit 32. At the same time, the pressurized hot air flows through the check assembly 6 of the partition plate 33 and dries the pipe of the first water passage in the first tub mechanism 1 and the corresponding filter unit 32.

[0056] When the first tank mechanism 1 and the second tank mechanism 2 are both in the washing and spin-drying processes, the corresponding pressure boost control valves 8 are allowed to flow normally, and the washing water is filtered by the corresponding filter sections 32, and then discharged together from the drain pump 4.

[0057] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Although the present invention has been disclosed above through preferred embodiments, this is not intended to limit the present invention. Any slight modifications or additions made by those skilled in the art using the technical content presented above, within the scope of the technical solution of the present invention, are considered to be equivalently modified embodiments. The implementation solutions in the above embodiments can also be further combined or replaced. Simple modifications, equivalent modifications, and additions made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are all within the scope of the solution of the present invention. [Explanation of symbols]

[0058] Explanation of the main components in the diagram 1 First tank mechanism 11 First Hose 12 Second Hose 2 Second tank mechanism 21 Third Hose 22 4th Horse 3 Filter Assembly 31 Housing 32 Filter section 33 Divider 34 Filter chamber 4. Drainage pump 5 Drain pipe 6 Check Assembly 61 Communication pipe 62 Sealing plug 63 Return member 7 Three-way joint 8. Pressure boost control valve

[0059] It should be noted that these drawings and written description are not intended to limit the scope of the present invention in any manner, but are intended to explain the concept of the present invention to those skilled in the art with reference to specific embodiments.

Claims

1. A clothing treatment device, A first tub mechanism (1) and a second tub mechanism (2) used for treating clothes; a filter assembly (3) having two filter sections (32), the drain outlets of the two tubs being connected to a drain pipe (5) of the laundry treatment device via the filter sections (32) corresponding to each other; A clothing processing device characterized by:

2. The filter assembly (3) comprises: a housing (31) installed on the front side of the clothing treatment device; a partition plate (33) installed in the housing (31) to divide the housing (31) into two filter chambers (34), and the two filter sections (32) are installed in the filter chambers (34), respectively. The laundry treatment device according to claim 1 .

3. Each of the two filter chambers (34) is provided with a water inlet and a water outlet, The drain outlet of the first tub mechanism (1) is connected to the water supply port of one of the filter chambers (34) via a first hose (11), and the water outlet of the filter chamber (34) is connected to the drain pipe (5) of the laundry treatment device via a second hose (12), thereby forming a first waterway; The clothing treatment device according to claim 2, characterized in that the drain outlet of the second tub mechanism (2) is connected to the water supply inlet of the other of the filter chambers (34) via a third hose (21), and the water outlet of the filter chamber (34) is connected to the drain pipe (5) of the clothing treatment device via a fourth hose (22), thereby forming a second waterway.

4. The clothing treatment device according to claim 3, characterized in that a three-way joint (7) is connected between the first water channel and the second water channel and the drain pipe (5) of the clothing treatment device, and a drain pump (4) is connected to the water outlet of the three-way joint (7).

5. The filter assembly (3) comprises:

5. The clothes treating device according to claim 4, further comprising an end cap on which two filter sections (32) are mounted together and which is detachably connected (31) to the housing (32).

6. The laundry treatment device according to any one of claims 1 to 5, characterized in that both the first hose (11) and the third hose (21) are provided with a pressure booster drain valve (8).

7. At least two check assemblies (6) are installed on the partition plate (33) in opposite flow directions, and the check assemblies (6) are A communication pipe (61) installed in the partition plate (33); a sealing plug (62) movably installed in the communicating pipe (61) for sealing the opening of the communicating pipe (61); a restoring member (63) having one end attached to the inner wall of the communicating pipe (61) and the other end connected to the sealing plug (62), the restoring member providing a restoring force for sliding the sealing plug (62) in the communicating pipe (61). The laundry treatment device according to claim 6 .

8. A control method applied to the laundry treatment device according to any one of claims 1 to 7, comprising the steps of: The water pressure P of the wash water flowing out from the outlets of both filter parts (32) is detected, and it is determined whether it is equal to or greater than a preset water pressure PO. If it is, the water is drained normally; if not, the two filter parts (32) are connected, and the wash water from the filter part (32) that can be drained normally is used to rinse the other filter part (32). A control method comprising the steps of:

9. 9. The control method according to claim 8, wherein after using the wash water from the filter section (32) that can be drained normally to rinse the other filter section (32), the drain ports of the first tank mechanism (1) and the second tank mechanism (2) are closed, and the drain pump (4) is used to pass external water through the filter section (32) that can be drained normally to backwash the other filter section (32).

10. Detecting the operating states of the first tank mechanism (1) and the second tank mechanism (2); Based on the operating states of the first tank mechanism (1) and the second tank mechanism (2), confirming and controlling the time when the first tank mechanism (1) and the second tank mechanism (2) operate with the corresponding filter unit (32); The control method according to claim 9, further comprising:

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