Water drainage early warning method of washing equipment and washing equipment

Abstract

The invention belongs to the technical field of washing equipment, and discloses a drainage early warning method for washing equipment and the washing equipment, the washing equipment comprises a thread scrap filtering and collecting device used for filtering drainage water flow, and the drainage early warning method comprises the steps that drainage operation is finished, and the duration of executing the drainage operation this time is obtained; and if the duration is longer than the early warning drainage time, an early warning signal for cleaning the thread scrap filtering and collecting device is sent out. According to the thread chip filtering and collecting device, whether the thread chip filtering and collecting device is full of thread chips or not is judged according to the change of the drainage time, and a user is reminded to clean the thread chip filtering and collecting device in time by sending out early warning. According to the invention, the early warning operation can be realized only through a simple logic circuit, and a complex structure is not needed. By feeding back the drainage condition of the washing equipment in time, the problem that the drainage efficiency of the washing equipment is affected due to the fact that a user forgets to clean the thread scraps after the thread scrap filtering and collecting device is filled with the thread scraps is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of washing equipment, and in particular, relates to a drainage early warning method for washing equipment and the washing equipment. Background Art

[0002] As one of the most widely used household appliances in people's daily lives, washing machines help people get rid of the trouble of washing clothes and bring great convenience to people. However, as the washing machine washes clothes, due to the friction between clothes and between clothes and the washing machine itself, the clothes will produce lint and mix into the washing water. When the washing machine finishes washing and drains, the lint on the clothes will be discharged along with the drainage water.

[0003] However, the concept of microplastics proposed in recent years has gradually received increasing attention in the field of environmental protection. Studies have found that an important source of microplastics is the wastewater discharged from household washing machines. This is because with the popularization of chemical fiber fabrics, clothing fibers that fall off during the washing process are discharged with the washing machine drainage water and become microplastics mixed into the natural water environment. Microplastics enter the ecological cycle directly with the drainage water, and will eventually accumulate in the human body through the natural food chain, which may have an impact on human health. For this reason, some regions have formulated relevant standards for the content of microplastics in washing machine drainage.

[0004] To this end, the drainage of the washing machine needs to be filtered before being discharged. However, the microplastics mentioned above are very small in size. In order to effectively filter the microplastics, the filter holes in the device used to filter the drainage of the washing machine also need to be set to a smaller size. But in this case, if there are too many wire scraps in the drainage water flow, the filter holes will soon be blocked. If the cleaning is not timely, the water flow cannot pass through the filter device smoothly, affecting the drainage efficiency.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a drainage warning method and washing equipment for a washing device. By detecting the change in drainage time, it is determined whether to issue a warning to the user to remind the user to clean the lint, and timely feedback is given on the drainage status of the washing device to avoid the washing device being unable to drain smoothly, thereby affecting the continued operation of the washing program.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] A drainage early warning method for a washing device, the washing device comprising a lint filtering and collecting device for filtering drainage water flow, the drainage early warning method comprising:

[0009] The drainage operation is completed, and the duration of the drainage operation is obtained;

[0010] If the duration is longer than the warning drainage time, a warning signal for cleaning the lint filtering and collecting device is issued.

[0011] Furthermore, the washing device determines a value of the early warning drainage time according to a duration of the drainage operation recorded in the history.

[0012] Furthermore, the duration of the drainage operation performed when the washing device is first run is recorded as a first drainage time, and a warning drainage time is determined based on the recorded first drainage time; wherein the warning drainage time is greater than the first drainage time.

[0013] Furthermore, the washing device is preset with a set difference, and the set difference is added to the first drainage time to obtain the early warning drainage time.

[0014] Furthermore, after the washing device detects that the lint filtering and collecting device has been cleaned, it re-determines the value of the early warning drainage time.

[0015] Furthermore, the re-determining the value of the warning drainage time includes: when the washing device performs the drainage operation again, recording the duration of the drainage operation, and re-determining the value of the warning drainage time according to the duration of the drainage operation recorded that time.

[0016] Further, the washing device triggers a first electrical signal when starting to perform a drainage operation;

[0017] The washing device triggers a second electrical signal when detecting that the water level drops to an empty water level;

[0018] The time interval between the first electrical signal and the second electrical signal is recorded as the duration of the drainage operation performed this time.

[0019] A washing device, wherein the washing device executes a drainage early warning method for a washing device as described in any one of the above.

[0020] Furthermore, the lint filtering and collecting device comprises:

[0021] The housing is provided with a water inlet connected to a drainage pipeline of the washing device;

[0022] A flexible filter screen is arranged inside the housing, the water inlet is connected to the inside of the flexible filter screen, and the wire scraps are collected inside the flexible filter screen;

[0023] The extrusion component is used to squeeze the flexible filter screen to deform it and compress the wire scraps collected inside the flexible filter screen.

[0024] Furthermore, during the drainage process of the washing device, the squeezing assembly maintains an initial state to keep the flexible filter net open; when the drainage operation is completed, if the washing device determines that the flexible filter net is at least partially blocked, the squeezing assembly is controlled to squeeze the flexible filter net.

[0025] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0026] 1. By judging whether the lint filter and collection device of the washing equipment is full of lint through the change of the drainage time of the washing equipment, and by issuing an early warning to remind the user to clean the lint filter and collection device in time, the drainage efficiency of the washing equipment is ensured.

[0027] 2. The drainage warning method of the washing equipment can realize the warning operation through a simple logic circuit without the need for a complex structure.

[0028] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0030] Figure 1 It is a schematic flow chart of a drainage early warning method for washing equipment of the present invention;

[0031] Figure 2 It is a schematic diagram of a flow chart of a water discharge warning method for washing equipment of the present invention for sending a warning signal;

[0032] Figure 3 It is a schematic diagram of a flow chart of determining the early warning drainage time of a drainage early warning method for washing equipment of the present invention;

[0033] Figure 4 It is a schematic diagram of a flow chart of a drainage warning method for washing equipment of the present invention for re-determining the warning drainage time;

[0034] Figure 5 A time domain diagram of a process for determining the duration of each drainage in a drainage early warning method for a washing device according to the present invention;

[0035] Figure 6 1 is a schematic diagram of the structure of the lint filtering and collecting device in an embodiment of the present invention (initial state);

[0036] Figure 71 is a schematic diagram of the structure of the lint filtering and collecting device without the upper shell in the embodiment of the present invention (initial state);

[0037] Figure 8 It is a schematic diagram of the structure of the lint filtering and collecting device without the upper shell in the embodiment of the present invention (extruded state).

[0038] In the figure: 100, outer shell; 101, water inlet; 102, water outlet; 111, first side wall; 112, second side wall; 121, upper shell; 122, lower shell; 200, flexible filter; 210, water inlet joint; 310, push plate; 321, connecting rod; 322, connecting part; 323, cam; 324, transmission part; 330, motor.

[0039] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Embodiment 1

[0043] like Figure 2 As shown, this embodiment provides a drainage early warning method for a washing device, wherein the washing device includes a lint filtering and collecting device for filtering drainage water flow, and the drainage early warning method includes:

[0044] The drainage operation is completed, and the duration of the drainage operation is obtained;

[0045] If the duration is longer than the warning drainage time, a warning signal for cleaning the lint filtering and collecting device is issued.

[0046] Specifically, a lint filter and collection device for filtering the drainage water flow is provided at the inlet, outlet or middle area of ​​the drainage pipe of the washing equipment. The drainage water flow passes through the drainage pipe and passes through the lint filter and collection device to be discharged. Lint is collected in the lint filter and collection device. If a large amount of lint accumulates in the lint filter and collection device, it will cause blockage, resulting in a decrease in the drainage water flow rate and a prolonged drainage time.

[0047] Furthermore, the washing device is provided with a drainage warning method for reminding the user to clean the lint filter collection device after the lint filter collection device is clogged. Figure 1 As shown, when the drainage program of the washing device starts to run, the washing device records the start time of the drainage process. When the drainage operation is completed, the duration of the drainage operation can be obtained. The washing device is also provided with a warning drainage time. If the duration of the drainage operation obtained is greater than the warning drainage time, it means that the lint in the lint filter collection device has reached the maximum value and needs to be cleaned to ensure that the drainage program of the washing device can run normally. At this time, the washing device sends a warning signal to the user to clean the lint filter collection device, reminding the user that the lint filter collection device needs to be cleaned.

[0048] Furthermore, in this embodiment, the washing device determines the value of the warning drainage time according to the duration of the drainage operation recorded in the history.

[0049] Specifically, the warning drainage time is a threshold time set by the washing device that has affected the operation of the washing device and needs to clean the lint filter and collection device. The washing device records the drainage time in the historical washing process to obtain the minimum threshold of drainage time that affects the washing effect due to lint accumulation. That is, the drainage time below this drainage time threshold has little effect on the washing process, and there is no need to frequently clean the lint filter and collection device. This threshold is taken as the warning drainage time.

[0050] As a specific implementation of this embodiment, Figure 3 As shown, the duration of the drainage operation performed when the washing device is first run is recorded as the first drainage time, and the warning drainage time is determined based on the recorded first drainage time; wherein the warning drainage time is greater than the first drainage time.

[0051] Specifically, the warning drainage time is determined based on the first drainage time recorded by the washing device, and the first drainage time is the duration of the drainage operation when the washing device is first operated. When the washing device is operated for the first time, if there is no lint accumulation in the lint filtering and collecting device of the washing device, the duration of the drainage operation at this time, that is, the first drainage time is the fastest drainage time. The first drainage time is taken as the basis, and the value of the warning drainage time is determined on this basis. Since the first drainage time is the actual drainage time, the warning drainage time can be guaranteed to be the most accurate.

[0052] More specifically, the washing device is preset with a set difference, and the set difference is added to the first drainage time to obtain the early warning drainage time.

[0053] The warning drainage time is determined based on the first drainage time, and the set difference is an empirical value obtained from multiple experiments in the early stage. The warning drainage time can be obtained by adding the first drainage time to the set difference.

[0054] During actual drainage, the drainage volume is determined according to the amount of clothes put into the washing tub of the washing device, or is set by the user. The drainage volume is not necessarily the same as the drainage volume during the first drainage, so the duration of the drainage operation is not necessarily the same. Therefore, preferably, for different drainage volumes, the warning drainage time will also have different values ​​corresponding to it, so as to ensure that when the lint accumulation fills up the lint filter collection device, an early warning can be issued to remind the user to clean the lint filter collection device.

[0055] In a further solution of this embodiment, a filter assembly is provided inside the lint filtering and collecting device of the washing device to filter lint. The filter assembly is a detachable device, and the water inlet of the filter assembly is connected to the water inlet pipe of the washing device.

[0056] In a specific embodiment, a sensor is provided at the connection position between the water inlet of the filter component and the water inlet pipe of the washing device, which can detect whether the filter component is connected here. When it is detected that the filter component is not installed, the sensor will generate a first feedback signal, and when it is detected that the filter component is installed, the sensor will generate a second feedback signal. When the sensor first detects the generation of the first feedback signal, it means that the filter component has been removed for cleaning, and then when the second feedback signal is detected, it means that the lint filter collection device has been cleaned and a new filter component has been put back. After it is detected that the lint filter collection device has been cleaned, the value of the warning drainage time is re-determined.

[0057] Specifically, when the lint filter collection device is full of lint, an early warning will be issued to remind the user to clean the lint filter collection device. When the washing device detects that the user has cleaned the lint filter collection device, the installed lint filter collection device is now free of lint. Because the state of the lint filter collection device may change after cleaning, in order to ensure accuracy each time, the early warning drainage time must be updated after each cleaning of the lint filter collection device.

[0058] The re-determining the value of the early warning drainage time includes: when the washing device performs the drainage operation again, recording the duration of the drainage operation, and re-determining the value of the early warning drainage time according to the duration of the drainage operation recorded that time.

[0059] like Figure 4 As shown, when the washing device performs the next wash again, the control system of the washing device will automatically record the duration of the drainage operation as the first drainage time, and calculate a new warning drainage time in the system based on the first drainage time plus the set difference. Each time the lint filter and collection device is cleaned, the washing device must update the warning drainage time, and record the number of drainage operations performed after each update to determine whether there is a problem with the number of drainage operations performed after the update. For example, after the warning drainage time is updated, the number of drainage operations performed when the warning is issued next time is significantly less than the previous time, indicating that a problem has occurred. After cleaning the lint filter and collection device, updating the first drainage time and the warning drainage time can also ensure the accuracy of the warning drainage time, avoid the old warning drainage time being unsuitable for the new washing process due to changes in water quality, changes in clothing materials, or problems with the detection device, and avoid the situation where the lint filter and collection device has been blocked but has not been cleaned in time.

[0060] As a specific implementation method of obtaining the drainage time in this embodiment, the washing device triggers a first electrical signal when starting to perform a drainage operation;

[0061] The washing device triggers a second electrical signal when detecting that the water level drops to an empty water level;

[0062] The time interval between the first electrical signal and the second electrical signal is recorded as the duration of the drainage operation performed this time.

[0063] Specifically, Figure 5As shown, the washing device records the electrical signal triggered by the water level in the washing tub when performing the drainage operation to obtain the duration of the drainage operation. The washing device triggers a first electrical signal when starting to perform the drainage operation, and the washing device records the current time at this time; during the drainage process, when the water level in the washing tub drops to the empty water level, the second electrical signal is triggered, and the washing device records the current time at this time. The washing device records the time interval between the first electrical signal and the second electrical signal as the duration of the drainage operation this time. After the drainage stage of each washing program is completed, the duration of the drainage operation this time will be compared with the warning drainage time. If the duration of the drainage operation this time is less than the warning drainage time, it will automatically enter the next stage; if the drainage time is greater than the warning drainage time, the washing device will send a warning signal to the user to clean the lint filter collection device, and wait for the user to complete the cleaning before proceeding to the next stage of the washing program.

[0064] In this embodiment, when the washing device is draining, it will record the duration of drainage and compare it with the warning drainage time. If the drainage duration of this drainage process is longer than the warning drainage time, an early warning will be issued to remind the user to clean the lint filter and collection device. The early warning drainage time is obtained by adding a set difference based on the first drainage time. The first drainage time is the duration of the drainage operation when there is no lint in the lint filter and collection device of the washing device. The set difference is an empirical value obtained based on multiple experiments in the early stage, and different early warning drainage times correspond to different water levels. The washing device will update the early warning time again after each user cleans the lint to ensure that the early warning time for each washing is the most accurate. The early warning drainage time can also be calculated based on the drainage time recorded in the history. By setting the early warning drainage time, the actual drainage time is compared with it, and it is determined whether the lint filter and collection device needs to be cleaned according to the change of the drainage time. It does not require too complicated structures, and the early warning can be achieved through a simple logic circuit.

[0065] Embodiment 2

[0066] This embodiment provides a washing device, which executes the drainage early warning method for washing devices described in the first embodiment.

[0067] Among them, Figures 6 to 8 As shown, the wire scrap filtering and collecting device comprises:

[0068] The housing 100 is provided with a water inlet 101 connected to a drainage pipe of the washing device;

[0069] The flexible filter screen 200 is disposed inside the housing 100, the water inlet 101 is connected to the inside of the flexible filter screen 200, and the wire scraps are collected inside the flexible filter screen 200;

[0070] The extrusion component is used to squeeze the flexible filter net 200 to deform it and compress the wire scraps collected inside the flexible filter net 200.

[0071] Specifically, a water inlet 101 is provided on the housing 100 of the lint filtering and collecting device for receiving water to be filtered, and the water flows directly into the flexible filter 200 through the water inlet 101, and the water inlet 101 is connected to the drainage pipeline of the washing device. The flexible filter 200 has a plurality of filter holes, through which the water can flow to the outside of the flexible filter 200, and the lint in the water is intercepted and collected inside the flexible filter 200.

[0072] The housing 100 is also provided with a water outlet 102, and the water flow after filtering and removing the lint can be discharged from the housing 100 through the water outlet 102. In this way, the lint filtering and collecting device can continuously receive the water flow to be filtered, filter out the lint and then discharge it, and collect the lint in the water in the flexible filter net 200.

[0073] Furthermore, the water inlet 101 of the lint filter collection device is connected to the drainage pipeline of the washing equipment, and the water outlet 102 on the housing 100 is connected to the pipeline to discharge the filtered water. Specifically, the water inlet 101 is connected to a water inlet pipe, and the inlet end of the water inlet pipe is connected to the drainage pipeline of the washing equipment. The drainage pipeline of the washing equipment at least includes a first drainage pipe connected to the water storage drum, and a second drainage pipe whose water outlet end is located outside the washing equipment, and the lint filter collection device is arranged between the first drainage pipe and the second drainage pipe.

[0074] The water inlet 101 is in the shape of a sleeve extending outward from the outer wall of the housing 100, so as to facilitate the connection of a pipeline for conveying the water flow to be filtered. The flexible filter screen 200 is provided with an opening for water to enter the interior, and the water inlet connector 210 is sealed and connected to the opening. When the flexible filter screen 200 is installed inside the housing 100, the water inlet connector 210 is sealed and inserted into the water inlet 101 from the inner side of the housing 100, so that the water flow entering from the water inlet 101 can directly enter the interior of the flexible filter screen 200, and will not directly flow into the space between the housing 100 and the flexible filter screen 200 without being filtered.

[0075] During the operation of the washing equipment, the drainage water flows into the lint filtering and collecting device for filtration and then is discharged outwards, thereby intercepting filtered impurities including lint and microplastics from the water, and effectively avoiding the problem of excessive microplastic content in the drainage of the washing equipment.

[0076] The squeezing assembly includes a push plate 310 and a driving mechanism. The push plate 310 is reciprocatingly disposed inside the housing 100, and the driving mechanism is used to drive the push plate 310 to reciprocate inside the housing 100. The flexible filter 200 is located on one side of the push plate 310, and the reciprocating motion of the push plate 310 can squeeze and release the flexible filter 200, so that the wire scraps attached inside are peeled off.

[0077] like Figure 7 As shown, when the lint filter collection device is waiting to receive the water flow to be filtered, the push plate 310 is in contact with the inner side of the first side wall 111, so that the flexible filter 200 can be stretched between the push plate 310 and the second side wall 112, thereby forming a filter cavity with a certain volume inside the flexible filter 200. When the drainage operation is completed and the lint in the flexible filter needs to be squeezed, the push plate 310 moves toward the second side wall 112, as shown in FIG. Figure 8 As shown, the flexible filter net 200 can be pressed between the push plate 310 and the second side wall 112, so that the wire scraps collected in the filter cavity are compressed into a ball.

[0078] When the push plate 310 moves to the extreme position in the direction of the second side wall 112, it moves in the opposite direction until it returns to the initial state where the push plate 310 is attached to the first side wall 111. At this time, the push plate 310 is separated from the second side wall 112, and a space is reserved between the two for the flexible filter 200 to be expanded again.

[0079] As a specific implementation, after the push plate 310 is separated from the second side wall 112 to release the flexible filter 200, the flexible filter 200 itself remains piled on the second side wall 112. When water flows into the flexible filter 200 through the water inlet 101 again, the flexible filter 200 can be expanded again under the impact of the water flow and gradually fill the space between the push plate 310 and the second side wall 112.

[0080] In a further solution of this embodiment, in order to realize the driving mechanism driving the push plate 310 to reciprocate, the driving mechanism at least includes a motor 330 and a connecting rod 321. The motor 330 is arranged outside the first side wall 111 and connected to one end of the connecting rod 321 (i.e. Figures 6 to 8 The connecting rod 321 is extended along the reciprocating motion direction of the push plate 310, and its other end (i.e. Figures 6 to 8 The left end in the middle) passes through the first side wall 111 and is connected to the push plate 310.

[0081] The operation of the motor 330 can drive the connecting rod 321 and one end thereof in transmission connection to reciprocate, thereby driving the push plate 310 to reciprocate inside the housing 100 , thereby squeezing or releasing the flexible filter 200 .

[0082] Specifically, the output shaft of the motor 330 is connected to the cam 323, and the operation of the motor 330 can drive the cam 323 to rotate. The cam 323 is provided with a cylindrical transmission part 324 protruding upward, and the transmission part 324 is eccentrically arranged relative to the rotation center of the cam 323. The right end of the connecting rod 321 is provided with a connecting part 322, and the connecting part 322 has a through hole penetrating from top to bottom, and the transmission part 324 is inserted into the through hole, and has a certain movable space in the through hole.

[0083] Furthermore, in this embodiment, during the drainage process of the washing device, the squeezing assembly maintains an initial state to keep the flexible filter net open; when the drainage operation is completed, if the washing device determines that the flexible filter net is at least partially blocked, the squeezing assembly is controlled to squeeze the flexible filter net.

[0084] Specifically, the washing device is also provided with a squeezing drainage time, and the squeezing drainage time is less than the warning drainage time; when the washing device performs the drainage operation, the squeezing component maintains the initial state, and the flexible filter net remains expanded; when the drainage operation is completed, if the current drainage time is greater than the squeezing drainage time and less than the warning drainage time, the squeezing component is controlled to squeeze the flexible filter net, and if the current drainage time is greater than the warning drainage time, a warning message is issued to remind the user to clean the lint.

[0085] like Figure 6 As shown, the housing 100 is formed by an upper housing 121 and a lower housing 122 that are buckled together. The water inlet 101 is arranged on the upper housing 121, and the water outlet 102 is arranged on the lower housing 122. The flexible filter 200 is detachably installed in the housing 100. When the collected lint reaches a certain amount, and the water permeability efficiency cannot be significantly improved even by squeezing the flexible filter 200, the user can remove the upper housing 121, and then remove the flexible filter 200, and then replace it with a new flexible filter 200. After the flexible filter 200 is replaced, the upper housing 121 and the lower housing 122 are buckled again, and the lint filtering and collecting device can continue to be used.

[0086] The flexible filter is connected to the water inlet 101, and a sensor is provided at the water inlet 101. The washing device detects whether the lint filter collection device is cleaned by the sensor. Specifically, when the flexible filter is full of lint and is removed by the user, the sensor generates a first feedback signal. When the cleaned flexible filter is installed back into the lint filter collection device, the sensor generates a second feedback signal. When the first feedback signal is received first and then the second feedback signal is received, it means that the operation of cleaning the lint filter collection device has been completed.

[0087] In this embodiment, the lint filter collection device is used to receive the water flow to be filtered, and filter the lint and other impurities and leave them in the flexible filter 200, which can effectively solve the problem that the lint is discharged along with the drainage water flow, resulting in excessive microplastic content in the drainage of the washing equipment. The lint attached to the flexible filter 200 is peeled off by the extrusion component, thereby releasing the filter holes blocked by the lint, and ensuring the water permeability of the flexible filter 200. The frequency of users disassembling and cleaning the lint filter collection device is reduced, making it more convenient for users.

[0088] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A drainage early warning method for a washing device, the washing device comprising a lint filtering and collecting device for filtering drainage water, characterized in that: The drainage early warning method comprises: The drainage operation is completed, and the duration of the drainage operation is obtained; If the duration is longer than the warning drainage time, a warning signal for cleaning the lint filtering and collecting device is issued.

2. A drainage early warning method for washing equipment according to claim 1, characterized in that: The washing device determines the value of the early warning drainage time according to the duration of the drainage operation recorded in the history.

3. A drainage early warning method for washing equipment according to claim 1, characterized in that: The duration of the drainage operation performed when the washing device is first run is recorded as a first drainage time, and a warning drainage time is determined according to the recorded first drainage time; wherein the warning drainage time is greater than the first drainage time.

4. A drainage early warning method for washing equipment according to claim 3, characterized in that: The washing device is preset with a set difference, and the set difference is added to the first drainage time to obtain the early warning drainage time.

5. A drainage early warning method for washing equipment according to any one of claims 2 to 4, characterized in that: After the washing device detects that the lint filtering and collecting device has been cleaned, it re-determines the value of the early warning drainage time.

6. A drainage early warning method for washing equipment according to claim 5, characterized in that: The re-determining the value of the early warning drainage time includes: When the washing device performs the drainage operation again, the duration of the drainage operation is recorded, and the value of the early warning drainage time is re-determined according to the duration of the drainage operation recorded that time.

7. A drainage early warning method for washing equipment according to any one of claims 1 to 4, characterized in that: The first electrical signal is triggered when the washing device starts to perform a drainage operation; The washing device triggers a second electrical signal when detecting that the water level drops to an empty water level; The time interval between the first electrical signal and the second electrical signal is recorded as the duration of the drainage operation performed this time.

8. A washing device, characterized in that: The washing equipment executes a drainage early warning method for washing equipment as described in any one of claims 1 to 7.

9. A washing device according to claim 8, characterized in that: The wire scrap filtering and collecting device comprises: The housing is provided with a water inlet connected to a drainage pipeline of the washing device; A flexible filter screen is arranged inside the housing, the water inlet is connected to the inside of the flexible filter screen, and the wire scraps are collected inside the flexible filter screen; The extrusion component is used to squeeze the flexible filter screen to deform it and compress the wire scraps collected inside the flexible filter screen.

10. A washing device according to claim 9, characterized in that: During the drainage process of the washing device, the squeezing assembly maintains an initial state to keep the flexible filter net open; when the drainage operation is completed, if the washing device determines that the flexible filter net is at least partially blocked, the squeezing assembly is controlled to squeeze the flexible filter net.

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