Filter element capable of collecting micro thread scraps, washing equipment and control method

Abstract

The invention discloses a filter element capable of collecting micro-thread scraps, washing equipment and a control method, and the filter element comprises a shell which is provided with a water inlet and a water outlet; the first filtering body is arranged in the shell and is of a cylindrical structure with a certain wall thickness, and the peripheral wall of the first filtering body and the inner wall of the shell are arranged at intervals to form a first cavity communicated with the water inlet; the second filter body is arranged in the center of the first filter body and is of a cylindrical structure with a certain wall thickness; the fine mesh cylinder is arranged at the center of the second filter body and is provided with a plurality of mesh holes capable of filtering the micro thread scraps, and the inner side of the fine mesh cylinder is communicated with the water outlet; wherein the filtering precision of the fine mesh cylinder is higher than that of the second filtering body, and the filtering precision of the second filtering body is higher than that of the first filtering body. According to the filter element, thick and large thread scraps can be intercepted through the first filter body and the second filter body, the fine net cylinder mainly intercepts micro thread scraps, meanwhile, the first filter body and the second filter body are of a three-dimensional space structure, and the thread scrap collecting amount within the service life of the filter element is increased.

Description

Technical Field

[0001] The present invention belongs to the technical field of washing equipment, and specifically relates to a filter element capable of collecting fine lint, a washing equipment and a control method. Background Art

[0002] Fine lint is the lint fiber debris that rubs off between clothes and between clothes and the washing machine during the clothes washing process. Larger fine lint has a size of several millimeters in length. After being discharged into water, it will enter the soil, causing soil compaction and affecting the growth of crops. Smaller fine lint has a size of only a few micrometers. Coupled with the wide popularization of chemical fiber clothes at present, the fine lint generated during their washing process is also called microplastics, which can enter the human blood through the food chain.

[0003] At present, researchers have found the above-mentioned fine lint in embryonic blood. Although the direct health impact of fine lint on humans is not yet clear, it has attracted the attention of the international community and research is being stepped up. Out of long-term consideration for human health, the discharge of fine lint has been managed step by step in some regions. In order to cut off the discharge of fine lint from the source, only the washing equipment such as washing machines can be improved to filter and collect during the discharge of washing water.

[0004] The existing devices used in washing equipment to collect fine lint often require manual collection by the user after filtration and then post-treatment because it is not allowed to discharge the filtered fine lint into the environment through the sewer. And generally, the above-mentioned devices filter out fine lint together with coarser and larger lint of larger size, resulting in a relatively fast accumulation rate of lint and requiring the user to frequently clean manually. And because the filtered lint is in a humid environment, it is very easy to mildew and generate odors, resulting in a very poor experience for the user during the process of cleaning fine lint. Therefore, the device that requires the user to frequently clean manually leads to a bad user experience.

[0005] On the other hand, the structure of the existing devices often disposes of the collection and separation of fine lint separately, resulting in a complex structure, cumbersome control, and may also affect the drainage speed, thereby reducing the laundry efficiency.

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

[0007] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a filter element capable of collecting fine lint, a washing equipment and a control method, which can complete the separation, collection and storage of fine lint integrally, and can increase the lint collection amount, thereby reducing the cleaning frequency of the user and ensuring the drainage efficiency.

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

[0009] The first object of the present invention is to provide a filter element capable of collecting fine wire chips, which can increase the wire chip collection amount and reduce the replacement frequency, and includes:

[0010] A housing, on which a water inlet and a water outlet are provided;

[0011] A first filter body, which is arranged inside the housing and is a cylindrical structure with a certain wall thickness. Its outer peripheral wall is spaced from the inner wall of the housing, and a first cavity communicating with the water inlet is formed between the outer peripheral wall of the first filter body and the inner wall of the housing;

[0012] A second filter body, which is arranged at the center of the first filter body and is a cylindrical structure with a certain wall thickness;

[0013] A fine mesh cylinder, which is arranged at the center of the second filter body and has a plurality of mesh holes capable of filtering fine wire chips. The inner side of the fine mesh cylinder is communicated with the water outlet;

[0014] Wherein, the filtering accuracy of the fine mesh cylinder is higher than that of the second filter body, and the filtering accuracy of the second filter body is higher than that of the first filter body.

[0015] Further, a coarse mesh cylinder is surrounded on the outer peripheral wall of the first filter body, and the coarse mesh cylinder has a water permeable structure. The first cavity is formed between the coarse mesh cylinder and the inner wall of the housing;

[0016] Preferably, the second filter body is preformed into a cylindrical structure with two open ends by loofah sponge or a structure similar to loofah sponge; the first filter body is formed by filling particles of loofah sponge or a structure similar to loofah sponge between the coarse mesh cylinder and the outer peripheral wall of the second filter body.

[0017] Further, a first fixing ring protruding from the inner surface is provided at one end of the housing, and a second fixing ring protruding from the inner surface is provided at the other end; one end of the coarse mesh cylinder is sleeved on the first fixing ring, and the other end is limited inside the second fixing ring;

[0018] Preferably, the housing includes a shell with one end closed and the other end open, and an end cover for sealing the open end of the shell. The first fixing ring is arranged on the inner surface of the closed end of the shell, and the second fixing ring is arranged on the inner surface of the end cover; the water inlet and the water outlet are both arranged on the closed end of the shell.

[0019] Further, the fine mesh cylinder is spaced from the inner peripheral wall of the second filter body, and a second cavity for collecting fine wire chips is formed between the two.

[0020] Further, the first filter body, the second filter body and the fine mesh cylinder are all cylindrical structures with one end closed and the other end open; the outer surface of the closed end of the first filter body is spaced from the inner surface of the housing;

[0021] The water inlet is arranged at one end of the housing and is oppositely arranged to the closed end of the first filter body; the water outlet is arranged at the other end of the housing, and the open end of the fine mesh cylinder surrounds the water outlet.

[0022] The second object of the present invention is to provide a washing device that can separate micro wire chips from the drainage while ensuring the drainage efficiency, including:

[0023] A water holding cylinder;

[0024] A drainage pump, whose water inlet end is communicated with the water holding cylinder;

[0025] A water tank, which is communicated with the water outlet end of the drainage pump, is arranged at a certain height inside the washing device and has a certain volume;

[0026] A filtering module, which is arranged at a position lower than the water tank and has a filter element that is communicated with the water tank and can filter micro wire chips;

[0027] An external drainage pipe, which is communicated with the water outlet of the filter element and extends to the outside of the washing device;

[0028] Preferably, the filter element is the filter element capable of collecting micro wire chips for the first object of the present invention.

[0029] Further, the water outlet end of the drainage pump is connected to an internal drainage pipe, at least part of the internal drainage pipe extends upward, and the water outlet opening of the internal drainage pipe is connected to the top of the water tank.

[0030] Further, the filtering module has a filter element accommodating structure, and a detection device with wiring contacts is arranged on the filter element accommodating structure; a conductive part is arranged on the filter element, and when the filter element is installed into the filter element accommodating structure, the conductive part contacts the wiring contacts to trigger the detection device.

[0031] Further, a water outlet valve for blocking the water outlet is arranged at the water outlet of the filter element, and the filtering module has a filter element accommodating structure, and a first docking head is arranged on the filter element accommodating structure; when the filter element is installed into the filter element accommodating structure, the first docking head pushes the water outlet valve to open the water outlet;

[0032] A water inlet valve for blocking the water inlet is arranged at the water inlet of the filter element, and the filtering module has a filter element accommodating structure, and a second docking head is arranged on the filter element accommodating structure; when the filter element is installed into the filter element accommodating structure, the second docking head pushes the water inlet valve to open the water inlet.

[0033] The third object of the present invention is to provide a control method for a washing device as described in the second object of the present invention. During the drainage process, the washing device obtains the working power / working current of the drainage pump. If it is determined that the working power / working current is greater than the power threshold / current threshold, an alarm signal indicating that the filter element life has expired is issued.

[0034] Preferably, the washing device records the number of times the washing program has been run. When it is determined that the working power / working current of the drainage pump is greater than the power threshold / current threshold, if the currently recorded number of runs is greater than or equal to the run number threshold, an alarm signal is issued; otherwise, no alarm signal is issued.

[0035] After adopting the above technical solutions, the present invention has the following beneficial effects compared with the prior art.

[0036] In the present invention, the provided filter element can be used for drainage filtration of a washing device. The first filter body, the second filter body, and the fine filter screen form a step-by-step filtration structure. The first filter body intercepts relatively thick lint, the second filter body can filter smaller lint and some micro lint, and the fine filter cylinder mainly intercepts micro lint. And thanks to the three-dimensional space structure of the first filter body and the second filter body, the filter element can collect more micro lint during its service life, reducing the frequency of cleaning and replacement by the user. At the same time, the filter element can store part of the washing water to be filtered through the first cavity, which is beneficial to ensuring the drainage efficiency of the washing device.

[0037] In the present invention, the fine filter cylinder is spaced from the inner peripheral wall of the second filter body to form a second cavity for collecting micro lint. On the one hand, it increases the amount of micro lint that can be collected, and on the other hand, it makes the water flow easier to pass through the fine filter cylinder, thereby also reducing the impact of the filtration process on the drainage efficiency of the washing device.

[0038] In the present invention, the drainage water flow of the washing device first enters a water tank arranged at a relatively high position and having a certain volume, and then enters the filter element for filtration, which not only meets the requirements of upward drainage but also can buffer the filter element. When the flow rate of the water flow through the filter element is less than the drainage flow rate of the washing device, the drainage water flow can be temporarily stored in the water tank without affecting the drainage efficiency. The water outlet opening of the inner drain pipe is close to the top of the water tank and is not easily submerged by the liquid level in the water tank, which is beneficial to ensuring that the drainage resistance remains stable.

[0039] In the present invention, when the filter element life expires, the liquid level in the water tank will rise rapidly. After submerging the water outlet opening of the inner drain pipe, the drainage resistance increases. At this time, the working power or working current of the drainage pump will increase significantly, and the main control module of the washing device can alarm accordingly to remind the user to clean the filter element. The washing device combines the working power / working current of the drainage pump with the number of times the washing program has been run to determine whether to alarm, effectively eliminating false alarms caused by malfunctions of the drainage pump itself.

[0040] The specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Description of the Drawings

[0041] The accompanying drawings, as a part of the present invention, are used to provide a further understanding of the present invention. The schematic 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 accompanying drawings in the following description are only some embodiments. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. In the drawings:

[0042] Figure 1 are schematic structural diagrams of the washing device in the first to third embodiments of the present invention;

[0043] Figure 2 are schematic structural diagrams of the filter element in the first to third embodiments of the present invention;

[0044] Figure 3 are schematic structural diagrams of the top-opening valve in the first to third embodiments of the present invention;

[0045] Figure 4 are schematic diagrams of the filter element accommodation structure in the first to third embodiments of the present invention;

[0046] Figure 5 are schematic structural diagrams of the docking head in the first to third embodiments of the present invention;

[0047] Figure 6 are schematic structural diagrams of the filter module in the first to third embodiments of the present invention (when the filter element is about to be installed in place);

[0048] Figure 7 are schematic structural diagrams of the filter module in the first to third embodiments of the present invention (when the filter element is installed in place);

[0049] Figure 8 is of the present invention Figure 7 magnified schematic diagram of part A;

[0050] Figure 9 are schematic structural diagrams of the filter element in the fourth embodiment of the present invention.

[0051] In the figure: 100, the casing; 200, the machine door; 300, the water storage cylinder; 410, the drainage pump; 420, the water inlet pipe; 430, the water tank; 440, the inner drainage pipe; 450, the connecting pipe; 460, the outer drainage pipe; 500, the filter element; 501, the first cavity; 502, the second cavity; 510, the housing; 511, the positioning table; 512, the conductive part; 513, the first fixing ring; 520, the end cover; 521, the handle; 522, the second fixing ring; 530, the top-opening valve; 530-1, the water outlet valve; 530-2, the water inlet valve; 531, the valve housing; 5311, the external thread; 5312, the tapered opening; 532, the valve core; 5321, the valve body; 5322, the valve rod; 533, the push plate; 5331, the water passing hole; 534, the elastic part; 541, the water outlet; 542, the water inlet; 551, the coarse mesh cylinder; 552, the first filter body; 553, the fine mesh cylinder; 554, the second filter body; 560, the outer shell; 561, the upper half shell; 562, the lower half shell; 563, the third fixing ring; 600, the filter element accommodation structure; 610, the filter cabin cover; 620, the guiding block; 621, the accommodation groove; 622, the guiding groove; 6221, the positioning groove; 623, the wiring contact; 630, the supporting block; 631, the supporting groove; 640, the water receiving plate; 641, the accommodation cavity; 6411, the chamfer; 642, the docking head; 642-1, the first docking head; 642-2, the second docking head; 6421, the column body; 6422, the external connection head; 6423, the sealing ring; 6424, the accommodation pipe; 6425, the annular groove; 6426, the inner top connection head; 643, the mounting hole; 700, the driving motor.

[0052] It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0053] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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.

[0054] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0055] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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 those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] As Figures 1 to 9 shown, an embodiment of the present invention provides a filter element 500 capable of collecting fine wire chips, and a washing device capable of filtering fine wire chips in the drained water flow and its control method. Among them, the washing device can be a washing machine, a washer-dryer, a nursing machine, or other washing devices with a clothing washing function.

[0057] Specifically, the filter element 500 in the embodiment of the present invention is connected to the drainage system of the washing device, and can filter the drained water flow of the washing device, so as to collect the fine wire chips generated during the operation of the washing device, and finally discharge the water that meets the discharge requirements.

[0058] As a specific implementation manner, the washing device includes a housing 100, a water storage barrel 300 is arranged inside the housing 100, a machine door 200 is opened at the front of the housing 100, and a driving motor 700 is arranged at the rear of the water storage barrel 300. The drainage system of the washing device is arranged inside the housing 100. Among them, the bottom of the water storage barrel 300 is connected to a water guide pipe 420, and the water guide pipe 420 is connected to the water inlet end of a drainage pump 410 to draw water from the bottom of the water storage barrel 300 to the drainage pump 410. The water outlet end of the drainage pump 410 is communicated with the filter element 500 to pump the water in the water storage barrel 300 to the filter element 500 for filtration. The filter element 500 is connected to an outer drainage pipe 460 extending outside the housing 100, so as to discharge the filtered water out of the washing device through the outer drainage pipe 460.

[0059] However, as the usage time of the filter element 500 increases, the amount of collected fine wire chips also gradually increases. When the fine wire chips accumulate to a certain amount, the rate of the drained water flow passing through the filter element 500 significantly decreases, and even can hardly pass through the filter element 500. At this time, the user needs to manually replace the filter consumables inside the filter element 500. However, since the fine wire chips collected inside the filter element 500 are in a humid environment, they are very easy to mold and generate odors, resulting in a very poor experience for the user during the process of cleaning the filter element 500. Especially when the service life of the filter element 500 is short, the user needs to frequently clean the filter element 500, seriously affecting the user experience. On the other hand, when the rate of the drained water flow passing through the filter element 500 decreases, it will affect the drainage speed of the washing device, and further lead to a decrease in the laundry efficiency.

[0060] Embodiment 1

[0061] As shown Figures 1 to 8 in the figure, this embodiment provides a filter element 500 and a washing device having the filter element 500, which are used to solve the problem that when the service life of the filter element 500 is short, users need to clean it frequently, resulting in a poor user experience.

[0062] In this embodiment, the filter element 500 includes a housing 560 provided with a water inlet 542 and a water outlet 541, and a filter body disposed inside the housing 560. The washing device includes a water storage barrel 300, a drainage pump 410, a filtering module, and an external drainage pipe 460. Among them, the filtering module has the above-mentioned filter element 500. The water inlet end of the drainage pump 410 is communicated with the water storage barrel 300, and the water outlet end is connected to the water inlet 542 of the filter element 500. The water outlet 541 of the filter element 500 is communicated with the external drainage pipe 460.

[0063] When the washing device drains water, the drainage pump 410 pumps the washing water out of the water storage barrel 300 and pumps it to the filter element 500. The washing water passes through the filter body in the filter element 500, and the lint (including micro-lint) carried therein is filtered and collected inside the filter element 500. The filtered washing water is discharged to the outside of the washing device along the external drainage pipe 460.

[0064] Specifically, in this embodiment, the filter body disposed inside the housing 560 includes a first filter body 552, a second filter body 554, and a fine mesh cylinder 553. Among them, both the first filter body 552 and the second filter body 554 are cylindrical structures with a certain wall thickness.

[0065] More specifically, the outer peripheral wall of the first filter body 552 is spaced from the inner wall of the housing 560, and a first cavity 501 communicating with the water inlet 542 is formed between the outer peripheral wall of the first filter body 552 and the inner wall of the housing 560. The second filter body 554 is disposed at the center of the first filter body 552. The fine mesh cylinder 553 is disposed at the center of the second filter body 554, and has a plurality of mesh holes capable of filtering micro-lint. The inside of the fine mesh cylinder 553 is communicated with the water outlet 541.

[0066] As a specific implementation manner, the housing 560 is a hollow cylinder, and the first filter body 552, the second filter body 554, and the fine mesh cylinder 553 are all cylindrical structures with openings at both ends and are coaxially disposed with the housing 560.

[0067] In the above solution, the filtration accuracy of the fine mesh cylinder 553 is higher than that of the second filter 554, and the filtration accuracy of the second filter 554 is higher than that of the first filter 552. The washing water entering the housing 560 from the water inlet 542 sequentially passes through the first filter 552, the second filter 554, and the fine mesh cylinder 553, and the lint in the water is filtered out step by step. Finally, it converges inside the fine mesh cylinder 553 and is discharged from the water outlet 541.

[0068] The filter element 500 of this embodiment has the above structure. Among them, the first filter 552 and the second filter 554 are not thin layers, but three-dimensional space structures with hole structures inside, which can accommodate more lint and are not easily blocked by lint, helping to extend the service life of the filter element 500. A fine mesh cylinder 553 is arranged at the center most, and the size of its mesh meets the requirements for micro-lint filtration, so as to ensure that the discharge of micro-lint in the final drainage meets the standard. In the process of step-by-step filtration, coarser lint can be collected inside the first filter 552, the second filter 554 collects smaller lint, and the fine mesh cylinder 553 mainly intercepts micro-lint, which can also extend the service duration before the filter element 500 is completely blocked.

[0069] On the other hand, the first cavity 501 can store part of the washing water to be filtered, which is beneficial to reducing the drainage resistance of the washing equipment and also helps to ensure the drainage efficiency of the washing equipment.

[0070] In a further solution of this embodiment, a coarse mesh cylinder 551 is arranged around the outer peripheral wall of the first filter 552. The coarse mesh cylinder 551 has a water-permeable structure, and the first cavity 501 is formed between the coarse mesh cylinder 551 and the inner wall of the housing 560.

[0071] As a specific solution, the water-permeable structure on the coarse mesh cylinder 551 is several water-permeable holes with larger sizes, and lint of various sizes carried in the washing water can basically pass through the water-permeable holes. In the above solution, the coarse mesh cylinder 551 does not play a filtering role, but only serves to gather the first filter 552 and maintain the cylindrical structure of the first filter 552.

[0072] In a specific implementation manner, both the first filter 552 and the second filter 554 are selected to be loofah or loofah-like structures. Among them, the particles filled in the second filter 554 are finer and are pre-processed into a cylindrical structure with openings at both ends, and it is installed at the center of the coarse mesh cylinder 551. Coarser particles are filled between the coarse mesh cylinder 551 and the second filter 554 without being compacted, thus forming the first filter 552. In the above structure, the inner peripheral wall of the first filter 552 is in contact with the outer peripheral wall of the second filter 554.

[0073] The above-mentioned sponge gourd-like structure may be other plant fibers that can form a three-dimensional network structure with holes inside, or may be granular or powdery wood chips.

[0074] In a preferred solution of this embodiment, the first filter body 552 and the second filter body 554 are made of sponge gourd, which is a natural plant component. It absorbs carbon dioxide during production, can be naturally degraded, and hardly produces carbon dioxide during degradation, making it suitable as a directly replaceable filter consumable and conforming to the environmental protection concept.

[0075] As a specific implementation manner, the volume of the first filter body 552 is larger than that of the second filter body 554. Specifically, the axial lengths of the first filter body 552 and the second filter body 554 are close, and the wall thickness of the first filter body 552 is greater than that of the second filter body 554.

[0076] Among them, the first filter body 552 itself has many relatively large holes, which can accommodate relatively large lint. Among the lint generated during the laundry process, the largest proportion is thick lint. The first filter body 552 occupies the largest volume in the overall filter body and can accommodate more thick lint without being blocked. In addition, the first filter body 552 is made of sponge gourd, and the network structure forming the holes presents a rough texture after being soaked in water, and can also adsorb smaller even micro lint. The second filter body 554 is located at the center of the first filter body 552, but the filled particles are finer, so that smaller lint and more micro lint can be filtered. Finally, through the fine mesh cylinder 553 at the very center, the micro lint that cannot be directly discharged in the discharge standard can be completely separated from the washing water, avoiding the over-standard discharge of micro lint.

[0077] In a further solution of this embodiment, the fine mesh cylinder 553 is spaced from the inner peripheral wall of the second filter body 554, and a second cavity 502 for collecting micro lint is formed therebetween.

[0078] Through the above structure, on the one hand, a space for collecting micro lint is reserved between the fine mesh cylinder 553 and the second filter body 554, which is beneficial to increasing the maximum amount of micro lint that the filter element 500 can collect. On the other hand, the presence of the second cavity 502 can make the water flow more easily pass through the fine mesh cylinder 553, thereby also reducing the impact of the filtration process on the drainage efficiency of the washing equipment.

[0079] In a further embodiment of the present example, a first fixing ring 513 protruding from the inner surface is provided at one end of the outer shell 560, and a second fixing ring 522 protruding from the inner surface is provided at the other end. The left end of the thick mesh cylinder 551 is sleeved on the first fixing ring 513, so that the inner side of the thick mesh cylinder 551 is fixed by the first fixing ring 513. The right end of the thick mesh cylinder 551 is limited inside the second fixing ring 522. Specifically, the second fixing ring 522 surrounds the outer periphery of the right end of the thick mesh cylinder 551 for limiting, so that the outer side of the thick mesh cylinder 551 is fixed by the second fixing ring 522.

[0080] Further, the outer shell 560 is composed of a detachably installed housing 510 and an end cap 520. The filter body inside the outer shell 560 can be cleaned by removing the end cap 520.

[0081] As a specific implementation manner, the housing 510 is a hollow cylinder with a closed left end and an open right end, and the end cap 520 is circular and is installed at the open end of the housing 510 to achieve sealing. Among them, the first fixing ring 513 is arranged on the inner surface of the closed end of the housing 510, the second fixing ring 522 is arranged on the inner surface of the end cap 520, and the water inlet 542 and the water outlet 541 are both opened on the closed end of the housing 510.

[0082] More specifically, the water inlet 542 is arranged in the area near the outer periphery of the closed end of the housing 510, so as to communicate with the first cavity 501. The water outlet 541 is arranged at the center of the closed end of the housing 510 and communicates with the inner space of the fine mesh cylinder 553.

[0083] It can be understood that the closed end of the housing 510 mentioned above does not mean that the left end of the housing 510 is completely closed and has no opening structure, but relative to the open end, the left end of the housing 510 is a relatively closed structure.

[0084] Further, a protruding handle 521 is provided on the outer surface of the end cap 520. When the filter element 500 needs to be cleaned, the user can hold the handle 521 and remove the end cap 520 from the housing 510. The right end of the thick mesh cylinder 551 is clamped inside the second fixing ring 522. Furthermore, the thick mesh cylinder 551, the first filter body 552 and the second filter body 554 can be taken out of the housing 510 together with the end cap 520.

[0085] As a specific structure, the end cap 520 and the housing 510 are connected by threads, and the user can hold the handle 521 and rotate the end cap 520 to separate it from the housing 510.

[0086] As a specific implementation manner, the fine mesh cylinder 553 is relatively fixed to the second filter body 554. For example, a connection structure for the fine mesh cylinder 553 and the second filter body 554 is provided at the left end. When cleaning the filter element 500, the entire filter body is replaced, that is, the fine mesh cylinder 553 is replaced together with the coarse mesh cylinder 551, the first filter body 552, and the second filter body 554.

[0087] When cleaning the filter element 500, the user holds the handle 521 and removes the end cap 520. Then, the temporary assembly structure composed of the end cap 520 and the filter body is moved above the trash can, and the filter body is abutted against one side of the trash can, so that the filter body and the end cap 520 can be separated by using the trash can. Then, the user can reinstall a new filter body, insert its end into the second fixing ring 522 on the end cap 520, and then install the end cap 520 back onto the housing 510. During the whole process, the user does not need to touch the wet or even moldy filter body with hands, so as to replace the filter body more hygienically and quickly.

[0088] As another specific implementation manner, the coarse mesh cylinder 551, the first filter body 552, and the second filter body 554 in the filter body form an integral structure, which is used as the filter consumable to be replaced each time the filter element 500 is cleaned. The fine mesh cylinder 553 is separately provided and can be reused.

[0089] As another specific implementation manner, since the filter element has a very long service life, which dilutes the usage cost, the filter element 500 can also be removed as a whole for replacement. In this way, the user will not see the filter body throughout the process, which is more hygienic, convenient and fast.

[0090] In a specific structure of the above implementation manner, a water outlet valve 530-1 is inserted at the water outlet 541. The left end of the fine mesh cylinder 553 is clamped around the water outlet valve 530-1 for fixation, and the right end of the fine mesh cylinder 553 abuts against the inner surface of the end cap 520.

[0091] When cleaning the filter element 500, the user holds the handle 521 and removes the end cap 520. The filter consumable composed of the coarse mesh cylinder 551, the first filter body 552, and the second filter body 554 is taken out together with the end cap 520, and can be abutted against the trash can to be separated from the end cap 520, and then a new filter consumable can be installed. After the filter consumable is taken out of the housing 510, the fine mesh cylinder 553 is removed, the lint attached to its outer wall is cleaned, and then it is reinstalled into the housing 510. After that, the end cap 520 with the new filter consumable is installed back onto the housing 510.

[0092] In a further aspect of this embodiment, the filtration module of the washing device has a filter element accommodating structure 600 disposed inside the housing 100 for fixing the filter element 500. Two docking heads 642 are provided on the filter element accommodating structure 600, namely a first docking head 642-1 corresponding to the water outlet 541 of the filter element 500, and a second docking head 642-2 corresponding to the water inlet 542 of the filter element 500.

[0093] An inlet valve 530-2 for blocking the water inlet 542 is provided at the water inlet 542 of the filter element 500, and an outlet valve 530-1 for blocking the water outlet 541 is provided at the water outlet 541. Both the inlet valve 530-2 and the outlet valve 530-1 are top-opening valves 530. When the filter element 500 is installed in place on the filter element accommodating structure 600, the first docking head 642-1 pushes the outlet valve 530-1 to open the water outlet 541, and the second docking head 642-2 pushes the inlet valve 530-2 to open the water inlet 542. When the filter element 500 is removed from the filter element accommodating structure 600, the inlet valve 530-2 and the outlet valve 530-1 can automatically reset, thereby blocking the water inlet 542 and the water outlet 541 respectively, and preventing the residual water in the filter element 500 from flowing out.

[0094] As a specific embodiment, the top-opening valve 530 includes a valve housing 531 and a reciprocating spool 532. The left end of the valve housing 531 is open, and a tapered opening 5312 matching the valve body 5321 of the spool 532 is provided at the center of the right end. The spool 532 is composed of a valve body 5321 and a valve stem 5322. The valve body 5321 blocks the tapered opening 5312 from the outside of the valve housing 531. The right end of the valve stem 5322 is connected to the valve body 5321 and passes through the tapered opening 5312 and inserts into the valve housing 531. The left end of the valve stem 5322 is fixed to a push plate 533 that can slide left and right in the valve housing 531.

[0095] The outer periphery of the push plate 533 is in limit fit with the inner peripheral wall of the valve housing 531 to guide the reciprocating movement of the spool 532. An elastic member 534 is provided between the right end of the push plate 533 and the valve housing 531 to maintain the state of the valve body 5321 blocking the tapered opening 5312. The elastic member 534 can be a compression spring.

[0096] In a specific structure, an external thread 5311 is provided on the outer peripheral wall of the valve housing 531 in a region near the right end, and it is assembled to the housing 510 of the filter element 500 through the external thread 5311.

[0097] The docking head 642 includes a hollow cylinder 6421, and a water flow channel is formed inside the cylinder 6421. The left end of the cylinder 6421 is connected to an external connecting head 6422 with an outer diameter smaller than the outer diameter of the cylinder 6421 for connecting the pipeline inside the washing device.

[0098] As a specific implementation manner, the column body 6421 and the external connecting head 6422 can be integrally formed.

[0099] An inward concave annular groove 6425 is arranged on the right end face of the column body 6421. The annular groove 6425 surrounds the water flow channel at the center of the column body 6421, and an inner top pipe head 6426 is formed inside the annular groove 6425. A sealing ring 6423 is arranged inside the annular groove 6425.

[0100] When the filter element 500 is installed in place on the filter element accommodating structure 600, the left end of the valve housing 531 of the top-opening valve 530 is inserted into the annular groove 6425. At the same time, the inner top pipe head 6426 is inserted into the inside of the valve housing 531, pushing the push plate 533 to slide rightward, driving the valve stem 5322 and the valve body 5321 to move rightward together, and the valve body 5321 is separated from the tapered opening 5312. A water passing hole 5331 is arranged on the push plate 533, so as to conduct and connect the joint 642 and the inside of the filter element 500.

[0101] When the filter element 500 is removed from the filter element accommodating structure 600, the inner top pipe head 6426 is withdrawn from the valve housing 531, and the push plate 533 slides leftward and resets under the elastic force of the elastic member 534, driving the valve stem 5322 and the valve body 5321 to move leftward together, and the valve body 5321 re-blocks the tapered opening 5312.

[0102] As a specific implementation manner, an installation hole 643 is formed on the filter element accommodating structure 600, and a receiving pipe 6424 is penetrated inside the installation hole 643. An external thread is arranged on the outer peripheral wall of the column body 6421, and the column body 6421 and the receiving pipe 6424 are assembled through the external thread, so as to assemble the joint 642 into the installation hole 643, and realize the fixation of the joint 642 on the filter element accommodating structure 600.

[0103] In a specific solution of this embodiment, a cleaning opening is arranged on the front side of the housing 100 of the washing device, and an openable and closable filter cabin cover 610 is installed thereon. When the user needs to take out the filter element 500 for cleaning, the filter cabin cover 610 can be opened from the cleaning opening, and the filter element 500 can be taken out from the inside of the housing 100 through the cleaning opening.

[0104] In this embodiment, the filter element 500 applied to the washing device can filter the drainage of the washing device, remove the micro lint therein and then discharge it to the outside of the washing device. Inside the filter element 500, a step-by-step filtering structure is formed by the first filter body 552, the second filter body 554 and the fine mesh cylinder 553. And the three-dimensional space structure of the first filter body 552 and the second filter body 554 can accommodate more lint, so as to extend the service life of the filter element 500 and reduce the frequency of the user cleaning the filter element 500. At the same time, since the filter element 500 is not easily blocked by lint, it also helps to ensure that the drainage efficiency of the washing device is not significantly affected.

[0105] In addition, most of the lint collected is accommodated inside the first filter element 552 and the second filter element 554, and is further enclosed in the outer shell 560 formed after the housing 510 and the end cover 520 are assembled. The peculiar smell that may be generated during lint storage is not easily dissipated, providing a better user experience.

[0106] Embodiment Two

[0107] As Figures 1 to 8 shown, this embodiment is a further limitation of the above Embodiment One. A detection device is provided on the filter element accommodation structure 600 for detecting whether the filter element 500 is installed in place.

[0108] Specifically, in this embodiment, the detection device has a wiring contact 623, and a conductive member 512 is provided on the filter element 500. When the filter element 500 is installed in place on the filter element accommodation structure 600, the conductive member 512 contacts the wiring contact 623, triggering the detection device.

[0109] As a specific structure, the detection device has two wiring contacts 623. Both of the two wiring contacts 623 are provided on the surface of the filter element accommodation structure 600 that can contact the filter element 500 and are respectively connected to wires. The conductive member 512 is a metal sheet embedded in the housing 510 of the filter element 500 and has an area exposed outside the housing 510.

[0110] When the filter element 500 is installed in place on the filter element accommodation structure 600, the conductive member 512 contacts the two wiring contacts 623 simultaneously, thereby connecting the wires respectively connected to the two wiring contacts 623, triggering the detection device to generate a corresponding feedback signal. When the main control module of the washing device receives the above feedback signal, it determines that the filter element 500 has been installed in place.

[0111] In a specific implementation manner of this embodiment, before starting the washing program or before starting to execute the drainage action, the washing device determines whether it has received the feedback signal that the detection device is in a triggered state. If the feedback signal can be received, it indicates that the filter element 500 is correctly installed in the filter element accommodation structure 600 at this time, and normal drainage can be performed, and the filtering function can be achieved through the filter element 500.

[0112] If the feedback signal is not received, it indicates that the filter element 500 is not installed or is not installed in place. In this case, water leakage may occur if drainage is performed. In this situation, the washing device prohibits starting the washing program, or pauses the washing program before starting to execute the drainage action, and issues a prompt message indicating that the filter element 500 is installed incorrectly, reminding the user to reinstall the filter element 500.

[0113] In a further solution of this embodiment, the filter element accommodating structure 600 includes a separately provided guiding block 620, a supporting block 630, and a water receiving plate 640. Among them, the water receiving plate 640 is arranged at one end of the filter element 500 where the water inlet 542 and the water outlet 541 are located, and a docking head 642 is installed thereon. The water receiving plate 640 has a receiving cavity 641 that is open towards the right, and a chamfer 6411 is provided at the opening of the receiving cavity 641. The left end of the filter element 500 is inserted into the receiving cavity 641, and the first docking head 642-1 is in plug-in fit with the water outlet valve 530-1, and the second docking head 642-2 is in plug-in fit with the water inlet valve 530-2.

[0114] The guiding block 620 and the supporting block 630 are arranged below the filter element 500. Among them, the supporting block 630 has a supporting groove 631, and the middle region of the filter element 500 is installed into the supporting groove 631. The guiding block 620 is arranged near the end where the end cap 520 is located, and a receiving groove 621 for accommodating the right end region of the filter element 500 is provided thereon.

[0115] More specifically, the right half of the bottom of the receiving groove 621 has a concave guiding groove 622, and the guiding groove 622 is partially recessed to form a positioning groove 6221. The wiring contact 623 is arranged on the bottom surface of the positioning groove 6221. A protruding positioning platform 511 is provided on the outer peripheral wall of the housing 510 of the filter element 500, and the conductive member 512 is embedded in the positioning platform 511.

[0116] The shape of the positioning platform 511 matches the shape of the positioning groove 6221. When the filter element 500 is installed in place in the filter element accommodating structure 600, the positioning platform 511 is embedded in the positioning groove 6221, so that the conductive member 512 is in contact with the two wiring contacts 623 simultaneously, thereby triggering the detection device. At the same time, the limiting cooperation between the positioning platform 511 and the positioning groove 6221 can also prevent the filter element 500 from retreating under the action of the elastic member 534, ensuring that the first docking head 642-1 is in plug-in fit with the water outlet valve 530-1, and the second docking head 642-2 is in plug-in fit with the water inlet valve 530-2, and realizing the smoothness of the water inlet channel and the drainage channel.

[0117] In this embodiment, the user installs the filter element 500 into the filter element accommodating structure 600 through the cleaning opening provided on the front side of the casing 100. During installation, the positioning platform 511 is rotated to the lower side of the filter element 500 so that it aligns with the guiding groove 622 on the guiding block 620, and then the filter element 500 is gradually pushed into the casing 100. Through the settings of the guiding groove 622, the positioning groove 6221, and the positioning platform 511, on the one hand, it helps the first docking head 642-1, the second docking head 642-2, the water outlet valve 530-1, and the water inlet valve 530-2 to accurately correspond in position, so that they can be accurately docked, avoiding the problem of the user installing the filter element 500 incorrectly. On the other hand, it can also ensure that the conductive member 512 can contact the wiring contact 623, and then the washing device can accurately determine whether the filter element 500 is installed in place.

[0118] Further, along the axial direction of the filter element 500, the guiding groove 622 gradually narrows from right to left (see Figure 4 the position shown by the upper arc curve), until it adapts to the width of the positioning platform 511. That is to say, when the filter element 500 is installed on the filter element accommodating structure 600 from the outside to the inside, the area of the guiding groove 622 passed by the positioning platform 511 gradually narrows, and such a setting facilitates the user to quickly and accurately install the filter element 500.

[0119] In this embodiment, the washing device can independently detect whether the filter element 500 is installed in place, and thus can prevent the problem of water leakage caused by draining water when the user does not install the filter element 500 or the filter element 500 is not installed in place. Similarly, it can also prevent water leakage caused by the user accidentally disassembling the filter element 500. The filter element accommodating structure 600 and the filter element 500 cooperate to form an anti-misassembly structure for installation, which is convenient for the user to position when installing the filter element 500, effectively avoiding the problem of inaccurate installation direction of the filter element 500.

[0120] Embodiment Three

[0121] As Figures 1 to 8 shown, this embodiment provides a washing device for solving the problem that filtering fine lint from the drainage water flow of the washing device easily affects the drainage efficiency.

[0122] Specifically, in this embodiment, the washing device includes a water storage barrel 300, a drainage pump 410, a water tank 430, a filtering module, and an external drainage pipe 460. Among them, the water inlet end of the drainage pump 410 is communicated with the water storage barrel 300, and the water outlet end is communicated to the water tank 430. The water tank 430 is arranged at a certain height inside the washing device and has a certain volume. The filtering module is arranged at a position lower than the water tank 430 and has a filter element 500 that is communicated with the water tank 430 and can filter fine lint. The external drainage pipe 460 is communicated with the water outlet 541 of the filter element 500 and extends to the outside of the washing device.

[0123] As a specific embodiment, the water storage cylinder 300, the drainage pump 410, the water tank 430 and the filtration module are all arranged inside the housing 100 of the washing device. The extended end of the external drainage pipe 460 extends out of the housing 100 for draining water to the outside of the washing device. The water tank 430 is arranged in the area near the top inside the housing 100, and the drainage pump 410 and the filtration module are arranged in the bottom area of the housing 100.

[0124] More specifically, the bottom of the water storage cylinder 300 is connected to the water guiding pipe 420, and the water guiding pipe 420 is connected to the water inlet end of the drainage pump 410 to draw water from the bottom of the water storage cylinder 300 to the drainage pump 410. The water outlet end of the drainage pump 410 is connected to the internal drainage pipe 440, and the internal drainage pipe 440 extends at least partially upward and is finally connected to the water tank 430. When the drainage pump 410 operates, the washing water in the water storage cylinder 300 can be drained into the water tank 430.

[0125] The bottom of the water tank 430 is connected to the connecting pipe 450, and the connecting pipe 450 extends at least partially downward. Its water outlet end is communicated with the water inlet 542 of the filter element 500, so that the washing water in the water tank 430 can flow into the filter element 500 along the connecting pipe 450 under the action of gravity. After the filter element 500 filters the washing water, the filtered washing water is discharged from the washing device through the external drainage pipe 460.

[0126] In this embodiment, along the drainage direction of the washing device, a water tank 430 is arranged between the drainage pump 410 and the filter element 500. The water tank 430 is arranged at a high place to meet the upper drainage requirement of the washing device, and at the same time, it can hold a part of the washing water to give a certain filtering buffer to the filter element 500. For example, when the flow rate of the water flowing through the filter element 500 is significantly less than the drainage flow rate driven by the drainage pump 410 of the washing device, the washing water can be temporarily stored in the water tank 430 without affecting the normal drainage speed. In this way, the filtering function of the drainage of the washing device can be realized to prevent the discharge of excessive micro lint, and the drainage efficiency of the washing device can be ensured without affecting the laundry efficiency.

[0127] In this embodiment, the specific structure of the filter element 500 and the specific installation structure of the filter element 500 in the washing device can adopt the specific solutions in the first or second above-mentioned embodiments.

[0128] With the above structure, the filter element 500 is fixed inside the housing 100 through the filter element accommodating structure 600. Among them, the water outlet end of the connecting pipe 450 is sleeved on the external pipe head 6422 of the second docking head 642-2, and the water inlet end of the external drainage pipe 460 is sleeved on the external pipe head 6422 of the first docking head 642-1, so as to drain the water on the water tank 430 into the filter element 500 for filtration, and then drain the filtered washing water along the external drainage pipe 460.

[0129] As a specific implementation, the volume V of the water tank 430 is set to be not greater than the maximum drainage volume V of the washing device for a single drainage m . Preferably, the volume V of the water tank 430 can be slightly less than V m . For example, if the maximum single drainage of the washing device is 20 liters, then the volume V of the water tank 430 can be 15 liters.

[0130] Since the water in the water tank 430 is continuously filtered by the filter element 500 and then drained away, that is to say, between two adjacent drainage operations, the water in the water tank 430 also continuously enters the filter element 500 and then gradually decreases. As long as there is no residual washing water from the previous drainage in the water tank 430 before the washing device starts to perform the drainage operation, then under normal circumstances, the real-time volume of the washing water in the water tank 430 generally will not reach the maximum drainage volume V of the washing device for a single drainage m . Therefore, the volume V of the water tank 430 being slightly less than V m can meet the requirements, and there is no need to set the volume of the water tank 430 too large, resulting in unnecessary space occupation.

[0131] In a further solution of this embodiment, the water outlet opening of the inner drain pipe 440 is connected to the top of the water tank 430. In this way, under normal circumstances, as long as the water tank 430 is not filled with washing water, the water outlet opening of the inner drain pipe 440 is always exposed to the air inside the water tank 430, which can ensure that the drainage resistance is stable and unchanged.

[0132] However, when the service life of the filter element 500 expires, resulting in a significant decrease in the water flow rate through the filter element 500, or even almost unable to pass through the filter element 500, when the drainage pump 410 continues to operate, the liquid level height inside the water tank 430 will rise rapidly and finally submerge the water outlet opening of the inner drain pipe 440. At this time, it will cause an increase in the drainage resistance. Correspondingly, the working power of the drainage pump 410 increases, and the corresponding working current also becomes larger. The main control module of the washing device can determine that the service life of the filter element 500 has expired based on the working power and / or working current described above, and then remind the user to clean it.

[0133] It should be noted that the drainage pump 410 has a motor that provides power. The working power of the drainage pump 410 described above refers to the operating power of the motor. Similarly, the working current of the drainage pump 410 is the operating current of the motor.

[0134] This embodiment also provides a control method for the above-mentioned washing device, which is used to give an alarm when the service life of the filter element 500 expires. Specifically, during the drainage process, the washing device obtains the working power / working current of the drainage pump 410. If it is determined that the working power / working current is greater than the power threshold / current threshold, an alarm signal indicating that the service life of the filter element 500 has expired is issued.

[0135] Further, when the motor of the drain pump 410 malfunctions, it may also cause the above-mentioned working power or working current to increase. To eliminate false alarms caused by the above situations, the washing device further executes the following control method.

[0136] The washing device records the number of times the washing program has been run. When it is determined that the working power / working current of the drain pump 410 is greater than the power threshold / current threshold, if the currently recorded number of times is greater than or equal to the running times threshold, an alarm signal is issued; otherwise, no alarm signal is issued.

[0137] In the above solution, the running times threshold can be determined by pre-testing the service life of the filter element 500. For example, pre-test the number of times T that the washing device can complete the washing program before the filter element 500 reaches the end of its life (that is, before it is blocked by lint). The running times threshold can be set to be less than the number T, but at least greater than T / 2.

[0138] For example, the service life of the filter element 500 is approximately 150 complete washing programs under normal circumstances. When the cumulative number of times the washing program has been run is less than 100 times, if the main control module of the washing device determines that the working power / working current of the current drain pump 410 is greater than the power threshold / current threshold, it is almost impossible to be caused by the end of the life of the filter element 500. If the running times threshold is set to 100 times, then when the current number of times is less than 100 times, even if the main control module determines that the working power / working current of the drain pump 410 is greater than the power threshold / current threshold, no alarm signal indicating the end of the life of the filter element 500 will be issued, effectively eliminating false alarms caused by the malfunction of the drain pump 410 itself.

[0139] As a specific implementation manner, each time the washing device issues an alarm signal, the currently recorded number of times is cleared. When the washing program is run again, the number of times is re-accumulated from zero.

[0140] Generally, after the washing device issues an alarm signal, the user will clean the filter element 500 and replace the filter element therein. Then, when the washing device runs the washing program again, since the filter element 500 with a brand-new filter element has been installed, the number of times should be re-accumulated.

[0141] As another specific implementation manner, each time the washing device detects that the filter element 500 is removed, or after detecting that the filter element 500 is reinstalled into the filter element accommodating structure 600, the currently recorded number of times is cleared. When the washing program is run again, the number of times is re-accumulated from zero.

[0142] Specifically, when the main control module of the washing device fails to receive the feedback signal generated by the triggering of the detection device, it is determined that the filter element 500 has been removed. When the main control module of the washing device receives the feedback signal again after failing to receive the feedback signal generated by the triggering of the detection device, it is determined that the user has reinstalled the filter element 500.

[0143] When there is an operation of removing the filter element 500 and then reinstalling it, it indicates that the user has cleaned the filter element 500. Then, when the washing device runs the washing program again, it is necessary to recalculate the cumulative number of times it has run.

[0144] As another specific implementation, after the washing device receives the clear instruction triggered by the user, it clears the currently recorded number of times of operation. When running the washing program again, it starts to recalculate the cumulative number of times of operation from zero.

[0145] Specifically, the user can trigger the clear instruction by operating the control panel of the washing device, or also trigger the clear instruction through a mobile terminal capable of communicating with the washing device.

[0146] In the above solution, the user independently controls whether to perform the clear operation on the number of times of operation. Only after the user determines that the filter element 500 has been cleaned and then clears it, can the problem that the washing device automatically clears incorrectly after the user accidentally removes the filter element 500 be avoided.

[0147] In this embodiment, a water tank 430 for temporarily storing washing water is provided upstream of the filter element 500 of the washing device, which can ensure the drainage efficiency of the washing device while realizing the drainage and filtration functions. At the same time, through the design of the position of the water outlet end of the inner drain pipe 440, the main control module of the washing device can independently monitor the usage condition of the filter element 500 and give an alarm when the filter element 500 reaches the end of its service life.

[0148] The washing device combines the working power / working current of the drainage pump 410 with the number of times the washing program has run to determine whether to give an alarm when the filter element 500 reaches the end of its service life, effectively eliminating the false alarm caused by the self-fault of the drainage pump 410.

[0149] On the other hand, since the initial dehydration stage with the largest vibration amplitude occurs after the drainage ends, at this time, there is still a large amount of washing water stored in the water tank 430. The mass of this part of the water increases the overall mass of the washing device, which helps to reduce the vibration amplitude of the whole washing device. After the dehydration speed increases and runs smoothly, the vibration amplitude decreases, and at this time, the remaining amount of washing water also gradually decreases.

[0150] Embodiment 4

[0151] Such as Figure 9As shown in the figure, this embodiment provides a filter element 500 with another structure. Specifically, the difference between this embodiment and the above-mentioned first embodiment is that the water inlet 542 and the water outlet 541 are respectively arranged at both ends of the housing 560 of the filter element 500.

[0152] In the specific structure of this embodiment, the first filter body 552, the second filter body 554, and the fine mesh cylinder 553 are all cylindrical structures with one end closed and the other end open. Among them, the first filter body 552 and the second filter body 554 have a certain wall thickness, and preferably the wall thickness of the first filter body 552 is larger.

[0153] The outer surface of the closed end of the first filter body 552 and the outer peripheral wall of the first filter body 552 are both arranged at intervals with the inner surface of the housing 560, so as to form a first cavity 501 surrounding the closed end and the outer peripheral wall of the first filter body 552.

[0154] The water inlet 542 is arranged at one end of the housing 560 and is arranged opposite to the closed end of the first filter body 552. The water outlet 541 is arranged at the other end of the housing 560, and the open end of the fine mesh cylinder 553 is arranged around the water outlet 541.

[0155] The filter element 500 provided in this embodiment can be externally placed for use with a washing device. By directly connecting the drain outlet of the washing device to the water inlet 542 and then connecting the water outlet 541 to the pipeline leading to the floor drain in the user's home, the drainage filtration function of the washing device can be realized.

[0156] Furthermore, the filter element 500 is installed in a placement manner with its axis extending in the vertical direction or close to the vertical direction. The washing water enters the filter element 500 from the upper end and is finally discharged from the water outlet 541 at the lower end.

[0157] Furthermore, a coarse mesh cylinder 551 for gathering the first filter body 552 is also arranged around the outer peripheral wall of the first filter body 552. At the end where the water outlet 541 is located, a convex first fixing ring 513 is arranged on the inner surface of the housing 560, and the lower end of the coarse mesh cylinder 551 is sleeved on the first fixing ring 513 for fixation.

[0158] Even further, a third fixing ring 563 protrudes from the outer periphery of the water outlet 541 towards the inside of the housing 560, and the open end of the fine mesh cylinder 553 is sleeved on the third fixing ring 563.

[0159] As a preferred solution, at the upper end of the coarse mesh cylinder 551, there is an end wall covering the surface of the closed end of the first filter body 552, and no water permeable holes are provided on the end wall. The washing water entering from the water inlet 542 flows along the end wall towards the outer periphery, and then flows downward to the bottom of the first cavity 501, successively passing through the first filter body 552, the second filter body 554, and the fine mesh cylinder 553, and finally being discharged from the water outlet 541.

[0160] That is to say, with the above structure, the bottom areas of the first filter body 552, the second filter body 554, and the fine mesh cylinder 553 are preferentially used to filter the washing water. After the bottom areas are gradually filled with lint, higher areas will continue to be used to achieve the filtering effect on the washing water. In this way, during the entire service life cycle of the filter element 500, the speed of the washing water passing through the filter element 500 remains basically stable.

[0161] In a further aspect of this embodiment, the housing 560 includes an upper half shell 561 and a lower half shell 562. Among them, the upper end of the lower half shell 562 is inserted into the open lower end of the upper half shell 561 to be assembled into a complete housing 560.

[0162] When it is necessary to replace the filter body inside the housing 560, the lower half shell 562 is pulled out from the upper half shell 561. Since the coarse mesh cylinder 551 is fixed to the lower half shell 562 through the first fixing ring 513, the filter body composed of the coarse mesh cylinder 551, the first filter body 552, the second filter body 554, and the fine mesh cylinder 553 is also pulled out together with the lower half shell 562, and then the whole of it can be replaced.

[0163] In this embodiment, a filter element 500 suitable for external use is provided. Similar to the first embodiment, it can also achieve step-by-step filtration, and the three-dimensional space structure of the first filter body 552 and the second filter body 554 can be used to accommodate more lint, so as to achieve the purpose of extending the service life of the filter element 500. The vertical placement mode of the filter element 500 and the water-impermeable structure at the upper end of the coarse mesh cylinder 551 help to gradually filter the washing water by using different areas of the first filter body 552 and the second filter body 554 from bottom to top, so as to keep the filtering speed of the filter element 500 for the washing water stable.

[0164] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent can make some changes or modifications to the above-mentioned technical content as equivalent embodiments of equivalent changes within the scope of the technical solution of the present invention. However, as long as it does not depart from the technical content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A filter element capable of collecting fine wire chips, characterized in that, Comprising: A housing, on which a water inlet and a water outlet are provided; A first filter body, disposed inside the housing, being a cylindrical structure with a certain wall thickness, the outer peripheral wall thereof being spaced from the inner wall of the housing, and a first cavity communicating with the water inlet being formed between the outer peripheral wall of the first filter body and the inner wall of the housing; A second filter body, disposed at the center of the first filter body, being a cylindrical structure with a certain wall thickness; A fine mesh cylinder, disposed at the center of the second filter body, having a plurality of mesh holes capable of filtering fine wire chips thereon, the inner side of the fine mesh cylinder communicating with the water outlet; Wherein, the filtering precision of the fine mesh cylinder is higher than that of the second filter body, and the filtering precision of the second filter body is not lower than that of the first filter body.

2. The filter element capable of collecting fine wire chips according to claim 1, wherein A coarse mesh cylinder is disposed around the outer peripheral wall of the first filter body, the coarse mesh cylinder having a water permeable structure, and the first cavity being formed between the coarse mesh cylinder and the inner wall of the housing.

3. The filter element capable of collecting fine wire chips according to claim 2, characterized in that One end of the housing is provided with a first fixing ring protruding from the inner surface, and the other end is provided with a second fixing ring protruding from the inner surface; one end of the coarse mesh cylinder is sleeved on the first fixing ring, and the other end is limited inside the second fixing ring; Preferably, the housing includes a housing body with one end closed and the other end open, and an end cover for sealing the open end of the housing body, the first fixing ring being disposed on the inner surface of the closed end of the housing body, and the second fixing ring being disposed on the inner surface of the end cover; the water inlet and the water outlet are both disposed on the closed end of the housing body.

4. The filter element capable of collecting fine wire chips according to any one of claims 1-3, characterized in that, The fine mesh cylinder is spaced from the inner peripheral wall of the second filter body, and a second cavity for collecting fine wire chips is formed therebetween.

5. The filter element capable of collecting fine wire chips according to claim 1 or 2, characterized in that The first filter body, the second filter body, and the fine mesh cylinder are all cylindrical structures with one end closed and the other end open; the outer surface of the closed end of the first filter body is spaced from the inner surface of the housing; The water inlet is disposed at one end of the housing, opposite to the closed end of the first filter body; the water outlet is disposed at the other end of the housing, and the open end of the fine mesh cylinder surrounds the water outlet.

6. A washing device, characterized in that, Comprising: A water holding cylinder; A drainage pump, the water inlet end thereof communicating with the water holding cylinder; A water tank, communicating with the water outlet end of the drainage pump, disposed at a certain height inside the washing device and having a certain volume; A filtering module, disposed at a position lower than the water tank and having a filter element communicating with the water tank and capable of filtering fine wire chips; An outer drainage pipe, communicating with the water outlet of the filter element and extending towards the outside of the washing device; Preferably, the filter element is the filter element capable of collecting fine wire chips as described in any one of claims 1-4.

7. The washing device according to claim 6, characterized in that, The water outlet end of the drainage pump is connected to an inner drainage pipe, at least a part of the inner drainage pipe extending upwards, and the water outlet opening of the inner drainage pipe being connected to the top of the water tank.

8. The washing device according to claim 6 or 7, characterized in that, The filtering module has a filter element accommodating structure, and a detection device with wiring contacts is disposed on the filter element accommodating structure; a conductive member is disposed on the filter element, and when the filter element is installed in the filter element accommodating structure, the conductive member contacts the wiring contacts to trigger the detection device.

9. The washing device according to claim 6 or 7, characterized in that, An outlet valve for blocking the water outlet is provided at the water outlet of the filter element. The filtration module has a filter element accommodating structure, and a first docking head is provided on the filter element accommodating structure. The filter element is installed in the filter element accommodating structure, and the first docking head pushes the outlet valve to open the water outlet. An inlet valve for blocking the water inlet is provided at the water inlet of the filter element. The filtration module has a filter element accommodating structure, and a second docking head is provided on the filter element accommodating structure. The filter element is installed in the filter element accommodating structure, and the second docking head pushes the inlet valve to open the water inlet.

10. A control method for a washing device according to any one of claims 6-9, characterized in that, During the drainage process, the washing device obtains the working power / working current of the drainage pump. If it is determined that the working power / working current is greater than the power threshold / current threshold, an alarm signal indicating that the filter element life has expired is issued. Preferably, the washing device records the number of times the washing program has been run. When it is determined that the working power / working current of the drainage pump is greater than the power threshold / current threshold, if the currently recorded number of times is greater than or equal to the running times threshold, an alarm signal is issued; otherwise, no alarm signal is issued.

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