Filtering collecting device and washing machine

Abstract

The utility model relates to a filter collection device and washing machine relate to filter collection technical field, specifically filter collection device and washing machine, including first passageway and second passageway, first passageway is connected with second passageway through filter collection spare, filter collection spare includes the casing, be provided with fluid inlet and backflow outlet on the casing, be provided with hollow filter structure in the casing, and filter structure inside area is filter collection chamber, fluid inlet is linked together with filter collection chamber, and backflow outlet is linked together with filter structure inside area of the casing, first passageway and filter collection spare link together one end and fluid inlet are linked together, and second passageway and filter collection spare link together one end and backflow outlet are linked together, backflow outlet is set up at least two, and fluid driving device that drives fluid flow is set up on first passageway or second passageway, the utility model effectively prevent filter screen blockage, be favorable to improve collection efficiency, avoid collecting granule detergent.

Description

Technical Field

[0001] This invention relates to the field of filtration and collection technology, specifically to a filtration and collection device and a washing machine. Background Technology

[0002] Current washing machines primarily assess their ability to remove sweat and dirt during the washing process. However, during washing, clothes accumulate lint, fibers, and particulate contaminants. These contaminants, along with undissolved chemical cleaning agent particles, adhere to the washing machine's tripod, lifting ribs, drying channel, and drum walls. Consequently, the cleanliness of clothes after washing is poor, requiring secondary cleaning. This leads to a significant accumulation of dirt, bacteria, and secondary contamination in washing machines over long-term use.

[0003] Therefore, it is necessary to include a structure in washing machines to collect and filter lint, fabric fibers, particulate contaminants, and undissolved chemical cleaning agent particles. However, existing designs and applications have the following problems regarding the above issues: 1. Collection and filtration device in drum washing machines: Currently, drum washing machines on the market basically do not have the function of filtering and collecting lint, lint, fabric lint, and particulate pollutants.

[0004] 2. A very small number of drum washing machines involve a filter collection device, but this requires a system that converts the detergent particles into foam before the washing process to avoid detergent collection. However, after the detergent particles are converted into foam, most of them float on top of the clothes, making it difficult to achieve optimal cleaning power. Drum washing machines use less water to achieve good tumbling power during the washing process. However, because drum washing machines use less water, there is a problem that clothes are not rinsed clean during the rinsing process. A large amount of foam is generated. Although it avoids the collection of detergent particles, it makes the problem of incomplete rinsing of foam on clothes more serious. Excessive foam makes the inner drum wall and lifting ribs smoother, which reduces the lifting ribs' ability to lift clothes, further reducing the tumbling power. At the same time, the smooth inner drum wall reduces the contact friction between the clothes and the inner drum wall, weakening the cleaning power. Because the system that converts the added detergent particles into foam and the filter and collection device for lint, lint, fabric lint, and particulate pollutants are too large overall, and there is insufficient space between the outer drum and the shell of the pulsator washing machine, they cannot be installed in the pulsator washing machine. As a result, the pulsator washing machine still uses the early filter collection box structure to collect lint, lint, fabric lint, and particulate pollutants.

[0005] 3. The water inlet of the filter collection device developed by the inventor in the early stage was located in the area between the inner drum and the outer drum of the washing machine. Due to market competition, the washing capacity of the inner drum has been increasing and the space between the inner and outer drums of the washing machine has become narrow, which has limited the size of the water inlet of the filter collection device and thus compressed the water flow. Although it meets the application, the more efficient filtration capacity is limited when the user chooses a quick wash. The design structure of this invention requires the user to clean the filter collection device after a certain period of use. Furthermore, the filtration and collection device developed by the inventors in the early stage could only achieve the function of filtration and collection when the inner drum rotated, allowing fluid to enter the filtration and collection device from the inlet. However, since the inner drum rotates reciprocally, it is in an intermittent state each time the rotation direction changes, and the collection and filtration function cannot be achieved at this time. As a result, the filtration and collection does not make full use of the washing time.

[0006] 4. During the washing process, laundry detergent is more effective at cleaning clothes than liquid detergent, and most users wash with cold water. Therefore, when users add laundry detergent granules into the washing machine through the water inlet, they are not completely dissolved. Furthermore, they tend to clump together when exposed to cold water. This causes the existing filtration and collection structure to accumulate, pile up, and clog more quickly when dealing with lint, yarn, fabric debris, and other contaminant particles after washing. Consequently, the filtration and collection efficiency declines rapidly, ultimately failing to provide a good user experience. Crucially, the large amount of undissolved laundry detergent particles collected during the washing process dilutes the detergent, reducing its ability to clean sweat stains and dirt from clothes.

[0007] The following derivative problems exist with existing front-loading and top-loading washing machines used by users: 1. Washing time is long. Users find that the cleaning effect is not ideal during the washing process. The simplest way is to extend the washing time. As a result, users have reported that the washing time of drum washing is longer than that of pulsator washing, which also causes inconvenience to users' life and work. 2. The wear and tear on clothing depends on the duration of cleaning, which leads to excessive soaking, washing, and rinsing of clothes with chemical detergents, thus reducing the value of washing and caring for the clothes. 3. Long-term washing and rinsing of clothes will cause unnecessary mechanical and physical wear and tear on the equipment and unnecessary consumption of the electrical control system, reducing the service life of the equipment and increasing the cost of replacement parts and maintenance. 4. Water and electricity consumption: In order to achieve the goal of cleanliness, users use delayed washing and repeatedly rinse with stored water to clean clothes, which leads to an increase in water and electricity consumption in the long run and a waste of natural resources. 5. Excessive use of chemical detergents or higher prices for detergent brands not only damages clothing due to excessive chemical application, but also reduces the rinsing and cleaning effect and ability due to excessive chemical residue. This repeatedly increases the cost of using chemical detergents and increases pollution of social water resources and the environment. 6. Accumulation of dirt and grime: Due to the inefficient filtration capacity of top-loading washing machines and the lack of a filtration structure in front-loading washing machines, the uneven and irregular structure between the inner and outer drums, such as the impeller, tripod, lifting ribs, inner drum grille, and collection box base, prolongs the time for lint and contaminants to adhere. Therefore, washing machines that have been used for many years are severely contaminated when disassembled and cleaned. 7. The growth of bacteria not only makes it easy for pollutants to adhere to the surface and cause contamination during the second washing process, but also generates a large number of bacteria, thus providing a favorable and unfavorable environment for the rapid spread of bacteria in public places such as hospitals, hotels, schools, dormitories, community laundromats, and coin-operated laundromats. 8. Increased consumables: Top-loading washing machines have poor collection capabilities, while front-loading washing machines have no collection at all. Long-term use leads to serious accumulation of dirt and bacteria inside the washing machine. Obviously, washing machines used year-round pose a serious health risk to children, women, and the elderly. Users start to buy various chemical cleaners, cleaning brushes, and disassembly tools for cleaning the washing machine drum. However, because the cleanliness of the drum is unclear and the cleaning capacity and energy efficiency cannot be tested, frequent cleaning results in significant financial expenditure for users and chemical pollution of water resources. DIY disassembly and cleaning requires users to spend a lot of time and manpower, and improper disassembly and installation may cause damage to the equipment. 9. Even when the cleaning equipment is in good working order and does not need to be replaced, the inner and outer drums of the washing machine accumulate a large amount of dirt and grime, leading to secondary pollution problems during the washing process. Furthermore, bacterial growth poses unpredictable health risks, forcing users to pay for on-site disassembly and cleaning services. The key issue is that comprehensive on-site disassembly and cleaning methods fail to achieve real-time cleaning and health protection for users.

[0008] Existing collection and filtration devices, due to the unidirectional flow of fluid, are more prone to clogging of the filter screen by lint, fuzz, textile lint, and particulate pollutants collected by the device. After the equipment has finished operating, it cannot achieve self-cleaning of the filter screen.

[0009] The drawbacks of existing filter collection structures: 1. Static adhesion makes it difficult to clean existing filter collection structures. During filtration and collection, the fluid carries the collected material to statically adhere to the filter screen surface in the chamber. As the fluid always passes through the filter screen in a directional manner, the adhesion between the collected material and the filter screen intensifies, making it difficult to clean thoroughly when the fluid is discharged. This leads to filter screen blockage. Furthermore, during equipment operation intervals, the collected material condenses on the filter screen, making it even more difficult for the collected material to self-clean. Over time, this results in cumulative filter screen blockage and eventually the failure of the filtration and collection function. 2. Obstruction of discharge and residue: When the existing filter collection structure is used to discharge and clean the collected materials, there is a problem that the discharged materials are not smooth and remain in the filter collection chamber, which leads to the formation of filter screen blockage. When the equipment is not working, the collected materials condense on the filter screen, making it even more difficult to clean later. This leads to the accumulation of blockages and eventually the failure of the filter collection function. 3. Lack of Impact Force and Residual Dirt: In existing filter collection structures, when fluid enters the filter collection chamber to clean the collected material, the flow rate is weak, resulting in insufficient impact force on the inner surface of the filter screen to achieve a cleaning effect. This leads to the accumulation of contaminants on the filter screen surface within the chamber, causing filter clogging. Furthermore, when the equipment is not in operation and the filter collection chamber is not wetted by fluid, the collected material adheres even more firmly to the filter screen surface, further hindering the self-cleaning process. Long-term use leads to cumulative clogging and functional failure. 4. Collecting and diluting chemical particles: Firstly, laundry detergent has a stronger chemical cleaning ability than liquid detergent, and most users wash with cold water. When laundry detergent granules are added to the washing machine drum, they do not dissolve quickly and tend to clump together with cold water. Therefore, in the incompletely dissolved state, during the filtration and collection process, due to the directional collection of fluids and the accumulation of collected materials, the incompletely dissolved laundry detergent particles are also collected into the aggregated lint, fuzz, and fabric fibers. This results in the dilution of the user's laundry detergent during the filtration and collection process, reducing the effectiveness of cleaning sweat stains and dirt on clothes. At the same time, if other chemical cleaning agents are added, such as those used to clean the dirt and grime trapped in the inner drum, the dirt and grime will be removed and collected during filtration and collection, thus achieving the simultaneous filtration and collection of dirt and grime and chemical cleaning agents. 5. Accumulated Filtration Due to the accumulation and clogging of lint, fuzz, textile lint, and particulate matter in the directional filtration system, the filtration efficiency gradually decreases. As the filter becomes increasingly clogged, the pump, which is designed to drive the fluid flow rate, experiences overload. Consequently, the pump power configuration needs to be adjusted based on the flow rate generated by the clogged filter, resulting in under-configured collection power and poor filtration efficiency. 6. Inability to Increase Filter Mesh Size: Users increasingly demand cleaner washing machines to remove lint, fuzz, and particulate matter after washing, and are concerned about the health effects of dirt and bacteria buildup inside the washing machine. Increasing filter density significantly improves filtration efficiency, but current fluid-directed filtration systems still cannot solve the problem of clogging, and achieving thorough automatic cleaning and drainage is even more difficult. Therefore, some users with limited budgets can only add a dryer to further remove lint and fuzz during the drying stage. However, this is obviously more cumbersome and costly, and the washing process still fails to effectively address dirt accumulation, bacterial growth, secondary pollution, and health concerns. Summary of the Invention

[0010] To address the aforementioned problems, this invention provides a filter collection device and washing machine that effectively prevents filter clogging, improves collection efficiency, and avoids the collection of particulate detergent.

[0011] The present invention provides a filtration and collection device, comprising a first channel and a second channel, wherein the first channel is connected to the second channel via a filtration and collection element; The filter collection element includes a housing, on which a fluid inlet and a return outlet are provided; The housing is equipped with a hollow filter structure, and the internal area of ​​the filter structure is a filter collection chamber; the fluid inlet is connected to the filter collection chamber, and the return outlet is connected to the internal area of ​​the housing where the filter structure is located. The end of the first channel connected to the filter collection element is connected to the fluid inlet, and the end of the second channel connected to the filter collection element is connected to the return outlet. The return outlet is configured to be at least two, and a fluid drive device for driving fluid flow is provided on the first or second channel.

[0012] Preferably, it also includes a discharge channel, and the housing is further provided with a fluid discharge port. One end of the discharge channel is connected to the housing and communicates with the fluid discharge port.

[0013] Preferably, the two ends of the filter structure are connected to the fluid inlet and the fluid outlet, respectively.

[0014] Preferably, the filter structure is a cylindrical filter screen.

[0015] Preferably, the filter structure is a cone-shaped filter screen.

[0016] Preferably, the filter structure is a filter screen with a polygonal cross-section.

[0017] Preferably, the filter structure is connected to the housing via a quick-release mechanism.

[0018] Preferably, the filter structure includes a filter structure body, on which a filter screen for fluid flow is provided. The return outlet is connected to the filter screen through the internal region of an annular sealing elastic element. The filter screen is located inside the connected annular sealing elastic element, and the two ends of the annular sealing elastic element are respectively connected to the housing and the filter structure body.

[0019] Preferably, it further includes a driving device for driving the filter structure to rotate around the central axis of the filter structure, the driving device being connected to the filter structure and fixedly mounted on the housing; The driving device is a hollow driving device.

[0020] Preferably, it further includes a backwashing channel, and the housing is provided with a backwashing port, the backwashing port is disposed facing the filter structure, and the backwashing channel is connected to the housing through the backwashing port; The backflushing port and / or return outlet are flat or slit-shaped.

[0021] Preferably, the two ends of the filter structure are sealed to the housing by a sealing device, and the return outlet is located in the area between the two sealing structures.

[0022] A washing machine includes a washing machine shell and an outer drum, wherein a drain pipe is connected to the outer drum, characterized in that a filter collection device is fixedly disposed in the area between the washing machine shell and the outer drum, wherein the ends of the first channel and the second channel away from the filter collection chamber both extend into the outer drum and are connected to the inner area of ​​the outer drum. The end of the discharge channel away from the filter collection chamber is connected to the drain pipe, and a discharge pump is installed on the discharge channel.

[0023] This invention has a simple structure and is easy to use. It uses a fluid drive device to drive fluid to flow alternately from two return outlets, thereby enabling the reciprocating dynamic movement of impurities in the fluid within the filter collection chamber. This achieves the filtration and collection of impurities without them adhering to the filter structure, avoiding clogging of the filter screen and ensuring that the efficiency does not decrease during the filtration and collection process. It is also beneficial to improve the collection and filtration efficiency by setting a higher power fluid drive device.

[0024] This invention utilizes the alternating flow of fluid from two return outlets to cause the impurities collected in the filter collection chamber to become fluid. This invention differs from traditional filter collection devices where the pollutants are statically attached. Static attachment in existing technologies is prone to clogging, which leads to a continuous decline in filter collection efficiency.

[0025] In this invention, the fluid flows alternately out of the return outlet on the shell after passing through the filter screen. This allows the lint, fuzz, lint, and particulate matter entrained in the fluid within the filtration and collection chamber to remain in a dynamic state, no longer adhering to the filter screen. This causes the lint, fuzz, lint, and particulate matter to tumble, gather, and adhere to the newly collected lint, fuzz, lint, and particulate matter within the filtration and collection chamber, thus cleaning the filter screen, ensuring smoother flow, and maintaining the effective collection process.

[0026] This invention not only enables the collection and filtration of lint, fibers, and particulate matter, eliminating the need for secondary lint removal after washing, but also solves the problem of pet hair being difficult to remove from clothes; it also reduces the accumulation of dirt and grime between the inner and outer drums of the washing machine, effectively reducing bacterial growth.

[0027] This invention, when filtering and collecting lint, fuzz, woven lint, and particulate matter, tumbles, adheres to, and aggregates these materials. During the discharge process, this facilitates the removal of lint, fuzz, woven lint, and particulate matter, reducing the likelihood of residue buildup on the filter screen and preventing filter clogging.

[0028] This invention utilizes a filter screen to filter and collect impurities in a fluid. Simultaneously, due to the fluid's alternating flow within the filter collection chamber, undissolved detergent particles continuously move within the chamber. This ensures that the detergent particles constantly contact and impact the filter screen, promoting rapid dissolution. The quickly dissolved detergent particles are then circulated back into the washing machine for cleaning clothes, efficiently dissolving and effectively removing sweat and dirt from garments, thus improving the washing machine's washing efficiency.

[0029] Because the filter screen is in a rotating state, the fluid flows out alternately from different positions inside the filter screen. This allows the lint, fuzz, fibrous material, and particulate matter entrained in the fluid to remain in a dynamic state within the filter screen, preventing them from adhering to it. This causes the lint, fuzz, fibrous material, and particulate matter to tumble, gather, and adhere to the filter screen, increasing the tumbling, gathering, and adsorption effects. This cleans the filter screen, ensures better filtration, and guarantees that the collection effect during filtration does not diminish.

[0030] When collecting and filtering debris, the fluid alternately flows out of the return outlet on the shell, causing the lint, fuzz, lint, and particulate matter in the filter collection chamber to tumble and gather. When the collected lint, fuzz, lint, and particulate matter are discharged, the fluid helps to flush them away, preventing them from adhering to the filter screen and further ensuring that the filter screen does not become clogged. This eliminates the need for manual cleaning of the filter screen and reduces the user's workload. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of a filtration and collection device.

[0032] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0033] Figure 3 This is a schematic diagram of a filter structure.

[0034] Figure 4 This is an exploded schematic diagram of a filter collection device.

[0035] Figure 5 This is an exploded view showing the connection between the connector body and the end cap.

[0036] Figure 6 This is a schematic diagram of an explosion of another filter collection component.

[0037] Figure 7 This is a schematic diagram of a washing machine structure.

[0038] Figure 8 for Figure 7 Another perspective illustration.

[0039] Figure 9 for Figure 8 Enlarged diagram of point B in the middle.

[0040] Figure 10 This is a schematic diagram of another type of washing machine.

[0041] Reference numerals: 1-Housing, 2-Return connector, 3-Connecting pipe, 4-Driving gear, 5-Driven gear ring, 6-Power unit, 7-Filter screen, 8-Rotary sealing ring, 9-Annular sealing elastic element, 10-First channel, 11-Discharge channel, 12-Connecting seat, 13-Bracket, 14-Second fixing ring, 16-Connecting hole, 17-Flow port, 19-Washing machine housing, 20-Discharge pump, 21-Second channel, 22-Foreign object interceptor, 23-Backwash channel, 24-Backwash port, 25-End cap, 26-Snap ring, 27-Connecting seat body, 28-Key, 29-Backwash connector. Detailed Implementation

[0042] The present invention will be described below with reference to the accompanying drawings.

[0043] See Figures 1-6 As shown, the present invention provides a filtration and collection device, which includes a first channel 10 and a second channel 21, wherein the first channel 10 is connected to the second channel 21 through a filtration and collection element. The filter collection element includes a housing 1, which is provided with a fluid inlet and a return outlet. The housing 1 is provided with a hollow filter structure, and the internal area of ​​the filter structure is a filter collection chamber; the fluid inlet is connected to the filter collection chamber, and the return outlet is connected to the internal area of ​​the housing 1 where the filter structure is located. One end of the first channel 10 connected to the filter collection element is connected to the fluid inlet, and the other end of the second channel 21 connected to the filter collection element is connected to the return outlet through the return connector 2. The return outlet is configured to be at least two, and a fluid drive device for driving fluid flow is provided on the first channel 10 or the second channel 21.

[0044] In use, a solenoid valve is installed on the second channel, and the fluid driving device drives the fluid into the filter collection chamber. After being filtered and collected, the fluid flows out from the second channel 21, thereby realizing the filtration of the fluid to be filtered from the original container and the return of the filtered fluid to the original container. When both second channels 21 are equipped with fluid drive devices, both second channels 21 are equipped with solenoid valves. The fluid drive devices and solenoid valves on the same second channel 21 open or close simultaneously. The two fluid drive devices operate alternately, causing the fluid to flow out of the two second channels 21 alternately. This causes the debris collected in the filter collection chamber to flow in a different direction with the fluid in the filter collection chamber, thereby increasing the tumbling and aggregation of debris in the fluid and preventing the filter screen 7 from clogging. At the same time, if this invention is used in a washing machine, the collected particulate detergent tumbles in the filter collection chamber, thereby increasing the dissolution rate of the particulate detergent and preventing it from being collected by the filter structure.

[0045] In one embodiment, a discharge channel 11 is also included. The housing 1 is also provided with a fluid outlet. One end of the discharge channel 11 is connected to the housing 1 and communicates with the fluid outlet. The discharge channel 11 is used to discharge the collected debris.

[0046] The filter structure is connected to the fluid inlet and fluid outlet at its two ends, respectively.

[0047] In one embodiment, the filter structure is a cylindrical filter screen 7; In one embodiment, the filter structure is a cone-shaped filter screen 7, with one end of the internal channel of the filter structure having a smaller cross-sectional area connected to the fluid outlet and the other end of the filter structure connected to the fluid inlet.

[0048] To further increase the extent to which debris tumbles within the filter collection chamber, the filter structure is configured as a polygonal filter screen 7.

[0049] In one embodiment, such as Figure 4 As shown, the filter structure is connected to the housing 1 via a quick-release structure. The quick-release structure includes fixing rings at both ends of the filter structure, namely a first fixing ring and a second fixing ring 14. The fluid inlet is connected to the filter collection chamber via the first fixing ring, and the fluid outlet is connected to the filter collection chamber via the second fixing ring 14. The housing 1 has installation areas at both ends, and the two fixing rings are respectively located in the installation areas. A connecting seat 12 is fixedly connected to the end of the first fixed ring away from the filter collection chamber via a bracket 13. The connecting seat 12 has external threads, and the bracket 13 is provided with an overflow port 17. The fluid inlet is located on the circumferential surface of one end of the housing 1 and is connected to the filter collection chamber through the flow port 17 and the internal area of ​​the first fixing ring. The end of the housing 1 near the fluid inlet is provided with a connecting hole 16, which is connected to the installation area where the first fixing ring is located. The connecting hole 16 is provided with an internal thread, and the connecting seat 12 is threadedly connected to the connecting hole 16.

[0050] In one embodiment, the filter structure includes a filter structure body, on which a filter screen 7 for fluid flow is provided. The return outlet is connected to the filter screen 7 through the internal region of an annular sealing elastic member 9. The filter screen 7 is located inside the connected annular sealing elastic member 9, and the two ends of the annular sealing elastic member 9 are respectively connected to the housing 1 and the filter screen 7 body.

[0051] The quick-release structure is set up as follows: The quick-release structure includes fixing rings set at both ends of the filter structure body, namely a first fixing ring and a second fixing ring 14. The fluid inlet is connected to the filter collection chamber through the first fixing ring, and the fluid outlet is connected to the filter collection chamber through the second fixing ring 14. The housing 1 has mounting areas at both ends, and the first fixing ring and the second fixing ring 14 are respectively rotatably and sealed within the mounting areas; A connecting seat 12 is connected to the end of the first fixed ring away from the filter collection chamber via a bracket 13. The connecting seat 12 has external threads, and the bracket 13 is provided with an overflow port 17. The fluid inlet is located on the circumferential surface of one end of the housing 1 and is connected to the filter collection chamber through the flow port 17 and the internal area of ​​the first fixing ring. The end of the housing 1 near the fluid inlet is provided with a connecting hole 16, which is connected to the installation area where the first fixing ring is located. The connecting hole 16 is provided with an internal thread, and the connecting seat 12 is threadedly connected to the connecting hole 16. The connecting seat 12 includes a connecting seat body 27 and an end cap 25. The connecting seat body 27 and the end cap 25 are fixedly connected by screws. A connecting post is fixedly provided at the center of one end of the bracket 13 near the connecting seat body 27. The connecting post passes through a matching through hole on the connecting seat body 27 and is axially fixedly connected to the connecting seat body 27 by a snap ring 26.

[0052] A key 28 is provided on the end of the filter structure body away from the connecting seat 12, and a keyway is provided on the corresponding installation area of ​​the housing 1. When the key 28 is located in the keyway, the annular sealing elastic element 9 on the filter body is connected to the return outlet on the housing 1. When the filter structure body is installed in the housing 1, after aligning the key 28 with the keyway, the filter structure body is inserted into the housing 1 through the connecting hole 16. After the key 28 on the filter structure body is inserted into the keyway on the housing 1, the end cover 25 is rotated, and the connecting seat body 27 is threadedly connected to the connecting hole 16, so that the housing 1 is detachably connected to a filter element.

[0053] In use, the fluid alternately flows through the internal area of ​​the annular sealing elastic element 9 and out through the two return channels. The fluid is filtered and collected by the filter screen 7 on the filter structure body. When it is necessary to discharge the collected impurities, the pump on the return channel stops and the solenoid valve closes. The solenoid valve on the fluid discharge channel 11 opens and the pump starts to operate. The fluid is discharged from the fluid discharge channel 11, along with the collected impurities. The filter structure body can also be disassembled periodically to clean the impurities.

[0054] In one embodiment, see Figure 4 As shown, it also includes a drive device for driving the filter structure to rotate around the central axis of the filter structure. The drive device is connected to the filter structure and is fixedly mounted on the housing 1. The drive device drives the filter structure to rotate in one direction or in both directions. The drive device is a hollow drive device.

[0055] The drive device includes a drive gear 4 that is rotatably connected to the housing 1 via a rotating shaft. A power device 6 for driving the drive gear 4 to rotate is connected to the drive gear 4. The power device 6 is fixedly mounted on the housing 1. The filter structure is fixedly connected to both ends with fixing rings, and the fluid inlet and fluid outlet are respectively connected to the filter collection chamber through the fixing rings. The housing 1 has mounting areas at both ends, and two fixing rings are respectively rotated and sealed within the mounting areas; The central axes of the two fixing rings are on the same straight line as the central axis of the filter structure. A hollow tube 3 is fixedly installed on the end of the fixed ring near the power unit 6 away from the filter collection chamber. A driven gear ring 5 is connected to the tube 3. The driven gear ring 5 is circumferentially fixed to the tube 3 and meshes with the driving gear 4. The fluid inlet connected to the fixing ring of the connecting pipe 3 is connected to the filter collection chamber through the connecting pipe 3. The cross-sectional area of ​​the internal channel of the connecting pipe 3 is greater than or equal to the cross-sectional area of ​​the internal channel of the filter screen 7 at the end connected to the fluid inlet, and the cross-sectional area of ​​the internal channel of the fluid inlet is greater than or equal to the cross-sectional area of ​​the internal channel of the filter screen 7 at the end connected to the fluid inlet.

[0056] The cross-sectional area of ​​the internal channel of the fluid outlet is greater than or equal to the cross-sectional area of ​​the internal channel at the end of the filter screen connected to the fluid outlet, and the cross-sectional area of ​​the internal channel of the discharge channel is greater than or equal to the cross-sectional area of ​​the internal channel at the end of the filter screen connected to the fluid outlet.

[0057] The power unit 6 is a drive motor, which drives the drive gear 4 to rotate. The drive gear 4 drives the driven gear ring 5 to rotate. Since the driven gear ring 5 is circumferentially fixedly connected to the connecting pipe 3, it drives the filter structure to rotate.

[0058] In one embodiment, a backwash channel 23 is further included, one end of which is connected to the housing 1 and is disposed toward the filter structure; the backwash port 24 and / or the return outlet can be flat or slit-shaped, and the backwash port 24 and / or the return outlet are respectively disposed on the housing 1 along the filter screen axial direction.

[0059] The housing 1 is provided with a backwash port 24, and the backwash channel 23 is connected to the backwash port through a backwash connector 29. A clean water source is connected through the backwash pipe to achieve backwashing of the filter structure.

[0060] In one embodiment, two annular limiting protrusions are provided on the outer circumferential surface of the fixed ring. The central axis of the two limiting protrusions is on the same straight line as the central axis of the fixed ring. A rotary sealing ring 8 is connected to the fixed ring between the two limiting protrusions. The rotary sealing ring 8 is engaged in the area between the two limiting protrusions. When the fixed ring is located within the installation area, the rotating sealing ring 8 is sealed to the housing 1 to prevent fluid leakage into the drive device, and the return outlet is located in the area between the two rotating sealing rings 8.

[0061] See Figures 7-10As shown, a washing machine includes a washing machine housing 19 and an outer drum. A drain pipe is connected to the outer drum. A filter collection device is fixedly arranged in the area between the washing machine housing 19 and the outer drum. The ends of the first channel 10 and the second channel 21 away from the filter collection chamber both extend into the outer drum and are connected to the inner area of ​​the outer drum. The end of the discharge channel 11 furthest from the filter collection chamber is connected to a drain pipe, and a discharge pump 20 is installed on the discharge channel 11. The filter collection chamber is horizontally positioned.

[0062] When the washing machine is working, the fluid drive device on the first channel 10 or the second channel 21 is used to draw the water inside the outer drum out to the filter collection chamber. After filtration, the water flows back to the inside of the outer drum through the two second channels 21 alternately. During this process, lint and other debris in the water flow are filtered and collected. Through the rotation of the filter structure, the debris flows in opposite directions, tumbles, gathers, and adheres to the newly collected lint, shavings, and particulate pollutants on the filter screen 7 in the filter collection chamber, achieving efficient cleaning of the filter screen 7. At the same time, it causes undissolved laundry detergent particles to flow, touch and rub against the inner surface of the filter screen 7, dissolving the undissolved laundry detergent particles and preventing them from accumulating in the same position on the filter screen 7. The return outlet is connected to the filter screen 7 through the internal area of ​​the annular sealing elastic element 9. The filter screen 7 is located inside the connected annular sealing elastic element 9. The two ends of the annular sealing elastic element 9 are connected to the housing 1 and the filter screen 7 body, respectively, so that the fluid entering the filter collection chamber can only flow out from the return outlet. Since the return outlet reduces the flow rate, it helps to increase the impact of the fluid on the filter screen 7 and prevents debris from clogging the filter screen 7. The filter structure is connected to the housing 1 via a quick-release mechanism, which allows for the assembly and disassembly of the filter structure, enabling maintenance or periodic cleaning of collected debris, and cleaning or replacement of the filter screen 7.

[0063] A foreign object catcher 22 is provided on the first channel 10. This foreign object catcher 22 is a foreign object catcher 22 in the prior art, and its structure can be set as follows: it includes a hollow cylindrical cleaning body, which is connected to the pipe to be connected. One end of the hollow cylindrical cleaning body is open and has an internal thread. A matching screw cap is connected through the internal thread. A filter baffle is provided on the end of the screw cap that extends into the cleaning body, thereby changing the flow direction of the fluid passing through the hollow cylindrical cleaning body. This prevents some larger foreign objects, such as coins, from flowing through the hollow cylindrical cleaning body, thus keeping them inside the hollow cylindrical cleaning body. The foreign object is then removed by rotating the screw cap.

Claims

1. A filtration and collection device, comprising a first channel and a second channel, characterized in that, The first channel is connected to the second channel via a filter collection element; The filter collection element includes a housing, on which a fluid inlet and a return outlet are provided; The housing is equipped with a hollow filter structure, and the internal area of ​​the filter structure is a filter collection chamber; the fluid inlet is connected to the filter collection chamber, and the return outlet is connected to the internal area of ​​the housing where the filter structure is located. The end of the first channel connected to the filter collection element is connected to the fluid inlet, and the end of the second channel connected to the filter collection element is connected to the return outlet. The return outlet is configured to be at least two, and a fluid drive device for driving fluid flow is provided on the first or second channel.

2. The filtration and collection device as described in claim 1, characterized in that, It also includes a discharge channel, and the housing is also provided with a fluid discharge port. One end of the discharge channel is connected to the housing and communicates with the fluid discharge port.

3. The filtration and collection device as described in claim 2, characterized in that, The filter structure is connected to the fluid inlet and the fluid outlet at its two ends, respectively.

4. The filtration and collection device as described in claim 1, characterized in that, The filtration structure is a cylindrical filter screen.

5. The filtration and collection device as described in claim 1, characterized in that, The filter structure is a cone-shaped filter screen.

6. The filtration and collection device as described in claim 1, characterized in that, The filter structure is a filter screen with a polygonal cross-section.

7. The filtration and collection device as described in claim 1, characterized in that, The filter structure is connected to the housing via a quick-release mechanism.

8. The filtration and collection device as described in claim 1, characterized in that, The filter structure includes a filter structure body, on which a filter screen for fluid flow is provided. The return outlet is connected to the filter screen through the internal region of an annular sealing elastic element. The filter screen is located inside the connected annular sealing elastic element, and the two ends of the annular sealing elastic element are respectively connected to the housing and the filter structure body.

9. The filtration and collection device as described in claim 1, characterized in that, It also includes a drive device for driving the filter structure to rotate around the central axis of the filter structure, the drive device being connected to the filter structure and fixedly mounted on the housing; The driving device is a hollow driving device.

10. The filtration and collection device as described in claim 1, characterized in that, It also includes a backwashing channel, and the housing is provided with a backwashing port, which is arranged facing the filter structure. The backwashing channel is connected to the housing through the backwashing port. The backflushing port and / or return outlet are flat or slit-shaped.

11. The filtration and collection device as described in claim 1, characterized in that, The filter structure is sealed to the housing at both ends by a sealing device, and the return outlet is located in the area between the two sealing structures.

12. A washing machine, comprising a washing machine casing and an outer tub, wherein a drain pipe is connected to the outer tub, characterized in that, A filter collection device as described in claim 2 is fixedly provided in the area between the washing machine shell and the outer drum. The ends of the first channel and the second channel away from the filter collection chamber both extend into the outer drum and are connected to the internal area of ​​the outer drum. The end of the discharge channel away from the filter collection chamber is connected to the drain pipe, and a discharge pump is installed on the discharge channel.

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