Clothing processing equipment and its control method

Abstract

This invention relates to the field of garment processing technology, specifically providing a garment processing device and its control method, aiming to solve the problem of water cross-contamination in existing multi-drum washing equipment after drain or pipe blockage. To this end, the control method of this invention includes: when the first processing drum is in the spin-drying stage, if it is detected that the second processing drum needs to enter the spin-drying stage, it determines whether a drainage blockage has occurred. If a drainage blockage occurs, the drainage control component connected to the second processing drum is prevented from opening; after the drainage control component connected to the first processing drum is closed, the drainage control component connected to the second processing drum is opened. This invention detects drainage blockage when two or more processing drums need to drain; if a blockage is found, after the drainage control component connected to the first processing drum is closed, the drainage control component connected to the second processing drum is opened, thus preventing water cross-contamination between multiple drums.

Description

Technical Field

[0001] This invention relates to the field of clothing processing technology, and specifically provides a clothing processing device and its control method. Background Technology

[0002] Multi-drum washing machines use a single drain pipe for unified drainage. In actual use, if the floor drain is clogged or blocked, or if the shared drain pipe inside the washing machine becomes blocked, the drain valves of all drums will be open simultaneously. This can lead to insufficient flow capacity in the drain channels, resulting in increased drainage pressure and obstructed water flow. Wastewater that should be discharged from the single drain pipe cannot be drained smoothly and in a timely manner, causing water accumulation and backflow in the shared pipe. This results in wastewater from different drums flowing back and seeping into each other, ultimately causing cross-contamination between the drum sections. This not only causes cross-contamination of washing wastewater from different drums (for example, it may pour heavily wastewater from the first drum into the second drum after rinsing, causing secondary contamination of clothes), but also affects the normal drainage process of each drum.

[0003] Multi-drum washing machines typically connect all the drums to a single main drain pipe. This main drain pipe is usually wide or has a large inner diameter, and since all the drums drain simultaneously, the wide or large main drain pipe ensures rapid drainage without cross-contamination, provided the main drain pipe is not blocked. However, due to varying floor drain sizes in different homes, if the main drain pipe is connected to a floor drain, cross-contamination will not occur if the floor drain's inner diameter is larger than the main drain pipe's inner diameter. But if the floor drain's inner diameter is smaller than the main drain pipe's inner diameter, a change in diameter occurs during drainage, effectively creating a blockage and causing cross-contamination. Regardless of the floor drain's opening size, any blockage in the floor drain or the main drain pipe will result in cross-contamination.

[0004] In summary, existing multi-drum washing equipment is prone to cross-contamination of water after drainage blockage occurs.

[0005] Accordingly, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0006] The present invention aims to solve the above-mentioned technical problem, namely, to solve the problem that existing multi-drum washing equipment is prone to cross-contamination of water after drainage blockage occurs.

[0007] In a first aspect, the present invention provides a control method for a garment processing device, the garment processing device comprising at least two processing cylinders and a main drain pipe, wherein each processing cylinder is connected to the main drain pipe, and each processing cylinder is connected to a drain control component, the drain control component being configured to control the connection or disconnection between the current processing cylinder and the main drain pipe; the control method comprising, when the first processing cylinder is in the dehydration stage, if it is detected that the second processing cylinder needs to enter the dehydration stage, determining whether a drain blockage has occurred, and if a drain blockage has occurred, prohibiting the opening of the drain control component connected to the second processing cylinder; and after the drain control component connected to the first processing cylinder is closed, controlling the opening of the drain control component connected to the second processing cylinder.

[0008] In the preferred embodiment of the above control method, the specific steps for determining whether drainage blockage has occurred include: obtaining the time from the initial water level to the target water level in the first treatment cylinder; if the obtained time is greater than a first preset time, then determining that blockage has occurred; and / or, if the obtained time is less than or equal to the first preset time, then determining that no blockage has occurred.

[0009] In the preferred embodiment of the above control method, when the first processing cylinder is in the dehydration stage, the water level in the first processing cylinder is obtained. If it is detected that the second processing cylinder needs to enter the dehydration stage, and the water level in the first processing cylinder is greater than the target water level, the drainage control component connected to the second processing cylinder is prohibited from being opened.

[0010] In the preferred embodiment of the above control method, when the first processing cylinder is in the dehydration stage, the water level in the first processing cylinder is obtained. If it is detected that the second processing cylinder needs to enter the dehydration stage, and the water level in the first processing cylinder is less than or equal to the target water level and no drainage blockage occurs, the drainage control component connected to the second processing cylinder is controlled to open.

[0011] In the preferred embodiment of the above control method, the dehydration stage includes a drainage stage and a spin-drying stage; if the water level in the first processing cylinder reaches the target water level, the first processing cylinder is controlled to enter the spin-drying stage, and in the spin-drying stage, the drainage control component connected to the first processing cylinder is in the open state.

[0012] In a preferred embodiment of the above control method, the control method further includes: when the first processing cylinder is in the dehydration stage, if it is detected that multiple processing cylinders need to enter the dehydration stage; then, one of the multiple processing cylinders is selected and designated as the second processing cylinder; after the second processing cylinder enters the dehydration stage, the second processing cylinder is designated as the first processing cylinder, and then one of the remaining multiple processing cylinders is selected and designated as the second processing cylinder, and so on in a cyclical manner.

[0013] In the preferred embodiment of the above control method, after the second processing cylinder enters the dehydration stage and the drainage control component connected to the first processing cylinder is in a closed state, the second processing cylinder is referred to as the first processing cylinder.

[0014] In the preferred embodiment of the above control method, when the first processing cylinder is in the dehydration stage, the water level in the first processing cylinder is obtained, and after the water level in the first processing cylinder is less than or equal to the target water level, it is determined whether drainage blockage has occurred.

[0015] In the preferred embodiment of the above control method, when a processing cylinder is detected to need to enter the dehydration stage, it is designated as the first processing cylinder, and the drainage control component connected to the first processing cylinder is controlled to open, so that the first processing cylinder enters the dehydration stage; and / or, when multiple processing cylinders are detected to need to enter the dehydration stage at the same time, one of the multiple processing cylinders is selected and designated as the first processing cylinder, and the drainage control component connected to the first processing cylinder is controlled to open, so that the first processing cylinder enters the dehydration stage.

[0016] In a second aspect, the present invention also provides a garment processing apparatus, the garment processing apparatus including a controller configured to perform the control method described in any one of the preferred technical solutions above.

[0017] With the above technical solution adopted, the garment processing device of the present invention includes at least two processing cylinders and a main drain pipe, wherein each processing cylinder is connected to the main drain pipe, and each processing cylinder is connected to a drain control component, which is configured to control the connection or disconnection between the current processing cylinder and the main drain pipe; the control method includes, when the first processing cylinder is in the dehydration stage, if it is detected that the second processing cylinder needs to enter the dehydration stage, determining whether a drain blockage has occurred; if a drain blockage has occurred, prohibiting the opening of the drain control component connected to the second processing cylinder; and controlling the opening of the drain control component connected to the second processing cylinder after the drain control component connected to the first processing cylinder has closed. The present invention detects whether the drain is blocked when two or more processing cylinders need to drain; if the drain is blocked, it controls the opening of the drain control component connected to the second processing cylinder after the drain control component connected to the first processing cylinder has closed, thus preventing water from flowing between multiple cylinders.

[0018] Furthermore, the present invention sets the target water level to the level at which the spin-drying stage can be performed, which can more accurately determine whether a blockage has occurred.

[0019] Furthermore, the present invention prohibits the opening of the drainage control component connected to the second treatment cylinder when the water level is higher than the target level, which can prevent premature drainage before it is determined whether the second treatment cylinder is blocked. Attached Figure Description

[0020] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0021] Figure 1 This is a flowchart of the main steps of the clothing processing equipment control method of the present invention;

[0022] Figure 2 This is a detailed flowchart of a preferred embodiment of the clothing processing equipment control method of the present invention. Detailed Implementation

[0023] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the invention and are not intended to limit the scope of protection of the invention. Those skilled in the art can make adjustments as needed to adapt to specific applications.

[0024] It should be noted that in the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] The garment processing device of the present invention includes at least two processing cylinders and a main drain pipe. There can be two, three, four, or even more processing cylinders, and each processing cylinder is connected to the main drain pipe. Each processing cylinder is connected to a drain control component, which is configured to control the connection or disconnection between the current processing cylinder and the main drain pipe. The drain control component can be a drain valve, a drain pump, or other types of drain control structure, as long as water in the processing cylinder can enter the main drain pipe when open, and water in the processing cylinder cannot enter the main drain pipe when closed, and water in the main drain pipe cannot enter the processing cylinder. In other words, the drain control component controls the connection or disconnection between the current processing cylinder and the main drain pipe. It can be a single, integral component or a part of a component controlling the connection or disconnection. The drain control component can be located at the drain outlet of the processing cylinder or on the connecting pipe between the processing cylinder and the main drain pipe.

[0027] Furthermore, each processing cylinder is equipped with a water level sensor to obtain the water level inside the processing cylinder. The clothing processing equipment also includes a controller, which can receive the transmission information from various components of the clothing processing equipment and analyze and control the components of the clothing processing equipment to work based on the transmission information, such as controlling the water inlet, the rotation of the processing cylinder, and the opening and closing of the drainage control components; it also includes a timer or a calculation module.

[0028] Furthermore, after the processing cylinder of the present invention enters the dehydration stage, it will perform drainage and spin-drying operations. That is, the dehydration stage includes a drainage stage and a spin-drying stage. Drainage is performed first, followed by spin-drying. Spin-drying is performed after the water level is less than or equal to the target water level (spin-drying water level). In some embodiments, the target water level is the spin-drying water level, indicating that there is very little water in the processing cylinder, and spin-drying can be performed. In other embodiments, the target water level is merely a judgment benchmark set by those skilled in the art that is lower than the initial water level, used to determine whether drainage is blocked (as described below). Those skilled in the art can set the target water level according to the actual situation.

[0029] See next. Figure 1 ,like Figure 1 As shown, the main steps of the control method of the present invention include: Step S1: When the first processing cylinder is in the dehydration stage, if it is detected that the second processing cylinder needs to enter the dehydration stage, it is determined whether drainage blockage has occurred.

[0030] Step S2: In the event of drainage blockage, the drainage control component connected to the second treatment cylinder shall be prohibited from being opened.

[0031] Step S3: After the drainage control component connected to the first treatment cylinder is closed, control the drainage control component connected to the second treatment cylinder to open.

[0032] Specifically, if multiple processing drums enter the working state, i.e., to process clothes, such as washing or rinsing, they will enter the dehydration stage after the washing or rinsing stage is completed. The processing drum that enters the dehydration stage is denoted as the first processing drum. When the first processing drum is in the dehydration stage, the drainage control component connected to the first processing drum is in the open state. At this time, if it is detected that another processing drum needs to enter the dehydration stage, it is denoted as the second processing drum, and step S1 is executed to determine whether drainage blockage has occurred. This can be based on the drainage time from the initial water level to the target water level. For example, if the drainage time is greater than the first preset time, it proves that drainage blockage has occurred, and otherwise it proves that drainage blockage has not occurred. Alternatively, it can be based on the drainage flow rate per unit time. For example, if the drainage flow rate per unit time is less than the preset drainage flow rate, it proves that drainage blockage has occurred, and otherwise it proves that drainage blockage has not occurred.

[0033] It should be noted that the drainage blockage in this invention includes whether the main drainage pipe or the floor drain is completely blocked or not completely blocked. As long as the judgment condition is met, the drainage is judged to be blocked.

[0034] If a drainage blockage is detected in step S1, the process proceeds to step S2, where the drainage control component connected to the second processing cylinder is prevented from opening. If the drainage control component connected to the second processing cylinder is opened while the second processing cylinder is blocked, the blockage will cause wastewater from the second processing cylinder to enter the first processing cylinder, resulting in cross-contamination. For example, if the first processing cylinder has already finished draining but is currently undergoing spin-drying, and its drainage control component is open, draining from the second processing cylinder at this time will cause wastewater from the second processing cylinder to enter the first processing cylinder due to the blockage and the fact that the first processing cylinder's drainage control component is not closed. Step S2, by preventing the drainage control component connected to the second processing cylinder from opening, prevents the second processing cylinder from entering the dehydration stage, thus avoiding cross-contamination.

[0035] After step S2 is completed, the opening and closing status of the drainage control component connected to the first processing cylinder is obtained in real time. If the drainage control component connected to the first processing cylinder is in the closed state, it proves that the first processing cylinder has completed the dehydration stage, including drainage and spin drying. At this time, step S3 is executed. In step S3, after the drainage control component connected to the first processing cylinder is closed, the drainage control component connected to the second processing cylinder is controlled to open, that is, the dehydration work of the second processing cylinder is executed, so that it enters the dehydration stage.

[0036] If it is determined in step S1 that no drainage blockage has occurred, multiple cylinders can be directly controlled to drain water together, or the following embodiment can be executed.

[0037] See next. Figure 2 ,like Figure 2 As shown, the detailed steps of a preferred embodiment of the control method of the present invention include: Step S101: When the first processing cylinder is in the dehydration stage, if it is detected that the second processing cylinder needs to enter the dehydration stage, the water level in the first processing cylinder is obtained.

[0038] Step S102: Determine whether the real-time water level of the first treatment tank is less than or equal to the target water level.

[0039] Step S103: If the water level is less than or equal to the target water level, obtain the time from the initial water level in the first treatment tank to the target water level.

[0040] Step S104: If the acquired duration is greater than the first preset duration, it is determined that a blockage has occurred.

[0041] Step S105: Prevent the opening of the drainage control component connected to the second treatment cylinder.

[0042] Step S106: After the drainage control component connected to the first treatment cylinder is closed, control the drainage control component connected to the second treatment cylinder to open.

[0043] Step S107: If the obtained duration is less than or equal to the first preset duration, it is determined that no blockage has occurred.

[0044] Step S108: Control the opening of the drainage control component connected to the second treatment cylinder.

[0045] Step S109: If the water level is higher than the target water level, the drainage control component connected to the second treatment cylinder shall not be opened.

[0046] Specifically, in step S101, the water level can be obtained through a water level sensor inside the first processing tank. After obtaining the water level, the water level information is transmitted in real time to the controller or the control module or processing module of the clothing processing equipment. After obtaining the real-time water level, the control unit records the time corresponding to each water level, and then proceeds to step S102. In step S102, it is determined whether the real-time water level of the first processing tank is less than or equal to the target water level. If the determination result is yes, then step S103 is executed. In step S103, the times corresponding to the initial water level and the target water level are found respectively, and the difference between the two can be used to calculate the initial water level. The time taken for the water level to reach the target water level is calculated and becomes the obtained time, which is the drainage time. If the drainage time is longer than the first preset time, step S104 is executed, indicating a blockage. If the drainage time is less than or equal to the first preset time, step S107 is executed, indicating no blockage. After step S104, step S105 is executed, prohibiting the opening of the drainage control component connected to the second treatment tank. If the drainage control component connected to the second treatment tank is opened while the drainage is blocked, the sewage in the second treatment tank will enter the first treatment tank due to the blockage, causing cross-contamination. For example, if the first treatment tank has completed drainage but is currently performing a spin-drying operation with its drainage control component open, and drainage is attempted from the second treatment tank at this time, the sewage in the second treatment tank will enter the first treatment tank due to the blockage and the fact that the drainage control component of the first treatment tank is not closed. Step S105 prohibits the opening of the drainage control component connected to the second treatment tank, thus preventing the second treatment tank from entering the drainage stage and avoiding cross-contamination. After step S105 is executed, the opening and closing status of the drainage control component connected to the first processing cylinder is obtained in real time. If the drainage control component connected to the first processing cylinder is in the closed state, it proves that the first processing cylinder has completed the dehydration stage, including drainage and spin drying. At this time, step S106 is executed. In step S106, after the drainage control component connected to the first processing cylinder is closed, the drainage control component connected to the second processing cylinder is controlled to open, that is, the dehydration work of the second processing cylinder is executed, so that it enters the dehydration stage.

[0047] After step S107, step S108 is executed. Since no drainage blockage occurs, the drainage control component connected to the second processing cylinder can be opened, allowing the second processing cylinder to enter the dehydration stage during the spin-drying stage of the first processing cylinder without causing cross-contamination.

[0048] Furthermore, in this preferred embodiment, if the water level in the first processing cylinder is less than or equal to the target water level, the first processing cylinder is controlled to enter the spin-drying stage. During the spin-drying stage, the drainage control component connected to the first processing cylinder is in the open state. The target water level is the water level at which the first processing cylinder enters the spin-drying stage, that is, the target water level is the spin-drying water level. Normally, the spin-drying stage is only entered when there is very little or no water in the processing cylinder, that is, the processing cylinder rotates to spin-dry. Setting the target water level in this way allows for a more accurate determination of whether the drainage is blocked. In contrast, the comparative embodiment sets the target water level to be higher than the spin-drying water level. In this case, it can only determine whether there is a blockage during the drainage process from the initial water level to the target water level, but it cannot detect whether a blockage occurs during the subsequent drainage process from the target water level to the spin-drying water level. If a blockage occurs later, but the determination result is that there is no blockage, then the determination will be inaccurate. Compared with the comparative embodiment, setting the target water level to the spin-drying water level in this preferred embodiment allows for a more accurate determination of whether there is a blockage.

[0049] Furthermore, if the judgment result of step S102 is negative, that is, if the real-time water level is greater than the target water level, then step S109 is executed. In step S109, the drainage control component connected to the second treatment cylinder is prohibited from being opened, because at this time the water level is not lower than the target water level, and it is not possible to accurately determine whether there is a blockage. If it is not determined whether there is a blockage, the drainage control component of the second treatment cylinder is prohibited from being opened to avoid premature opening and causing water leakage. Step S102 is executed after step S109 is executed.

[0050] In this preferred embodiment, the determination of whether drainage blockage has occurred is made only after the water level in the first processing tank is less than or equal to the target water level. In other embodiments, if it is detected that the second processing tank needs to enter the dehydration stage while the first processing tank is in the dehydration stage, the determination of whether drainage blockage has occurred is made directly, without waiting for the water level in the first processing tank to be less than or equal to the target water level before determining whether drainage blockage has occurred. A possible method for determining whether blockage has occurred is as follows: obtain the drainage volume of the total drainage pipe within a second preset time period; if the drainage volume within the second preset time period is less than the preset drainage volume, then the clothing processing equipment is determined to be blocked; if the drainage volume within the second preset time period is greater than or equal to the preset drainage volume, then the clothing processing equipment is determined not to be blocked. The second preset time period can be a unit of time or any value set by those skilled in the art.

[0051] In other embodiments, when the first processing cylinder is in the dehydration stage, if it is detected that multiple processing cylinders need to enter the dehydration stage, then one of the multiple processing cylinders is selected and designated as the second processing cylinder; after the second processing cylinder enters the dehydration stage, the second processing cylinder is designated as the first processing cylinder, and the previous first processing cylinder is no longer designated as the first processing cylinder, and then one of the remaining multiple processing cylinders is selected and designated as the second processing cylinder, and so on in a cyclical manner.

[0052] In other embodiments, if multiple processing cylinders are detected to need to enter the dehydration stage when the first processing cylinder is in the dehydration stage, then one of the multiple processing cylinders is selected and designated as the second processing cylinder. After the second processing cylinder enters the dehydration stage and the drainage control component connected to the first processing cylinder is in the closed state, the second processing cylinder is designated as the first processing cylinder, and the previous first processing cylinder is no longer designated as the first processing cylinder. Then, one of the remaining multiple processing cylinders is selected and designated as the second processing cylinder, and the cycle continues.

[0053] Before step S1 or step S101, it is possible that when a processing cylinder is detected to need to enter the dehydration stage, it is designated as the first processing cylinder, and the drainage control component connected to the first processing cylinder is controlled to open, so that the first processing cylinder enters the dehydration stage; or, when multiple processing cylinders are detected to need to enter the dehydration stage at the same time, one of the multiple processing cylinders is selected and designated as the first processing cylinder, and the drainage control component connected to the first processing cylinder is controlled to open, so that the first processing cylinder enters the dehydration stage.

[0054] It should be noted that the first preset time in this invention is the standard time required for the initial water level to reach the target water level without drainage blockage. The initial water level of each cylinder can be the same or different. When a single cylinder processes the same procedure multiple times, the initial water level can also be different. For example, the initial water levels for 2 pieces of clothing and 3 pieces of clothing are different. The controller of the clothing processing equipment stores the first preset time corresponding to different initial water levels to the target water level without drainage blockage. That is, the specific value of the corresponding first preset time can be selected based on the different initial water levels to make the blockage judgment more accurate.

[0055] Furthermore, the target water level for different treatment cylinders can be the same or different; it can be the spin-drying water level, or it can be lower or higher than the spin-drying water level. Those skilled in the art can set it according to the actual situation.

[0056] Preferably, the first processing cylinder is positioned at a lower height than the second processing cylinder; however, the two cylinders can also be positioned at the same height.

[0057] To save drainage time, multi-tub washing machines typically connect all the tubs to a single main drain pipe. This main drain pipe is wide or has a large inner diameter, and all tubs drain simultaneously. In experimental phases, assuming the main drain pipe is not blocked, even with multiple tubs draining at the same time, the wide or large inner diameter of the main drain pipe ensures rapid drainage without cross-contamination. However, due to varying floor drain sizes in different households, if the main drain pipe is connected to a floor drain, cross-contamination will not occur if the inner diameter of the floor drain opening is larger than that of the main drain pipe. If the inner diameter of the floor drain opening is smaller than that of the main drain pipe, cross-contamination will occur during drainage. The change in pipe diameter can indirectly cause blockages and lead to cross-contamination of water. Regardless of the size of the drain pipe opening, if the drain or the main drainage pipe is blocked, cross-contamination will occur. Chinese patent CN110396797B provides a sequential drainage scheme, but it does not determine whether the drainage is blocked. Instead, it blindly drains water sequentially regardless of whether there is a blockage, which reduces drainage efficiency. In contrast, the present invention uses the above-mentioned control method to avoid cross-contamination. At the same time, compared with Chinese patent CN110396797B, it can improve drainage efficiency and enhance the user experience, showing excellent application prospects.

[0058] In a second aspect, the present invention also claims a garment handling apparatus, the garment handling apparatus including a controller configured to perform the control method described in any of the above embodiments. The garment handling apparatus may be a multi-drum washing machine, a multi-drum washer-dryer combo, or other types of multi-drum washing equipment.

[0059] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A control method for a garment processing device, characterized in that, The garment processing device includes at least two processing cylinders and a main drain pipe, and each processing cylinder is connected to the main drain pipe. Each processing cylinder is connected to a drain control component, which is configured to control the connection or disconnection between the current processing cylinder and the main drain pipe. The control method includes, When the first processing cylinder is in the dehydration stage, if it is detected that the second processing cylinder needs to enter the dehydration stage, it is determined whether a drainage blockage has occurred. If a drainage blockage occurs, the drainage control component connected to the second processing cylinder is prohibited from being opened. After the drainage control component connected to the first processing cylinder is closed, the drainage control component connected to the second processing cylinder is opened. When the first processing cylinder is in the dehydration stage, the water level inside the first processing cylinder is obtained. If it is detected that the second processing cylinder needs to enter the dehydration stage, and the water level in the first processing cylinder is less than or equal to the target water level and no drainage blockage occurs, the drainage control component connected to the second processing cylinder is controlled to open.

2. The control method according to claim 1, characterized in that, The specific steps for determining whether a drainage blockage has occurred include: The time taken for the initial water level in the first processing cylinder to rise to the target water level is obtained; If the acquired duration exceeds the first preset duration, a blockage is determined to have occurred. And / or, if the obtained duration is less than or equal to the first preset duration, it is determined that no blockage has occurred.

3. The control method according to claim 2, characterized in that, When the first processing cylinder is in the dehydration stage, the water level inside the first processing cylinder is obtained. If it is detected that the second processing cylinder needs to enter the dehydration stage, and the water level in the first processing cylinder is greater than the target water level, the drainage control component connected to the second processing cylinder shall be prohibited from being opened.

4. The control method according to claim 2 or 3, characterized in that, The dehydration stage includes a drainage stage and a spin-drying stage; If the water level in the first treatment cylinder reaches the target water level, the first treatment cylinder is controlled to enter the spin-drying stage. During the spin-drying stage, the drainage control component connected to the first treatment cylinder is in the open state.

5. The control method according to claim 1, characterized in that, The control method also includes, When the first processing cylinder is in the dehydration stage, if it is detected that multiple processing cylinders all need to enter the dehydration stage, then one of the multiple processing cylinders is selected and designated as the second processing cylinder. After the second processing cylinder enters the dehydration stage, the second processing cylinder is designated as the first processing cylinder, and then one of the remaining processing cylinders is selected and designated as the second processing cylinder, and the process is repeated in this manner.

6. The control method according to claim 5, characterized in that, After the second processing cylinder enters the dehydration stage and the drainage control component connected to the first processing cylinder is in the closed state, the second processing cylinder is referred to as the first processing cylinder.

7. The control method according to any one of claims 1 to 3, characterized in that, When the first processing cylinder is in the dehydration stage, the water level inside the first processing cylinder is obtained. If the water level in the first treatment cylinder is less than or equal to the target water level, it is determined whether a drainage blockage has occurred.

8. The control method according to claim 1, characterized in that, When a processing cylinder is detected to need to enter the dehydration stage, it is designated as the first processing cylinder. The drainage control component connected to the first processing cylinder is then activated to allow the first processing cylinder to enter the dehydration stage.

9. The control method according to claim 1, characterized in that, When multiple processing cylinders are detected to need to enter the dehydration stage at the same time, one of the processing cylinders is selected and designated as the first processing cylinder. The drainage control component connected to the first processing cylinder is then opened to allow the first processing cylinder to enter the dehydration stage.

10. A garment processing device, characterized in that, The garment handling device includes a controller configured to perform the control method according to any one of claims 1 to 9.

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