A collecting filter device and a washing machine

Abstract

The utility model relates to a kind of collection filtering device and washing machine, and is specifically related to a kind of collection filtering device and washing machine, including first passageway and second passageway, and the first passageway is connected with second passageway by collection filtering piece;The collection filtering piece includes shell, fluid inlet is arranged on the one end of the shell, and backflow outlet is arranged on the circumferential surface of the shell;Hollow filter screen is arranged in the shell, and the internal region of filter screen is collection filtering chamber, and the fluid inlet is communicated with collection filtering chamber;The backflow outlet is communicated with the internal region of the shell where filter screen is located;Fluid driving device for driving fluid flow is arranged on the first passageway and / or second passageway;Driving device for driving filter screen to rotate around filter screen axis is further fixedly arranged in the shell;The utility model effectively prevents filter screen from being blocked, ensures collection efficiency, and simultaneously avoids collecting granular detergent.

Description

Technical Field

[0001] This utility model relates to the field of collection and filtration technology, specifically to a collection and filtration 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, fuzz, textile 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 will condense on the filter screen, making it even more difficult to clean later. This will lead to the accumulation of blockage 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. Utility Model Content

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

[0011] This utility model provides a collection and filtration device, which includes a first channel and a second channel, wherein the first channel is connected to the second channel through a collection and filtration element; The collecting filter includes a housing, with a fluid inlet at one end and a return outlet on the circumferential surface of the housing; The housing is equipped with a hollow filter screen, and the internal area of ​​the filter screen is a collection and filtration chamber. The fluid inlet is connected to the collection and filtration chamber. The return outlet is connected to the internal area of ​​the housing where the filter screen is located; The end of the first channel connected to the collecting filter element is connected to the fluid inlet, and the end of the second channel connected to the collecting filter element is connected to the return outlet. The first channel and / or the second channel are provided with a fluid drive device for driving fluid flow; The housing also contains a drive device for driving the filter screen to rotate around the filter screen axis.

[0012] Preferably, the outer circumferential surface of the filter screen is also provided with several partition sealing structures. The end of the partition sealing structure away from the filter screen extends toward the inner circumferential surface of the housing and connects with it. The area enclosed by the adjacent partition sealing structures and the inner wall of the housing is a separation area. When the filter screen rotates, the separation area passes through the return outlet in sequence and connects with the return outlet.

[0013] Preferably, the partitioned sealing structure is a plate-shaped elastic element.

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

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

[0016] Preferably, the end with the larger cross-sectional area of ​​the internal channel of the filter screen is connected to the fluid inlet.

[0017] Preferably, the filter screen is a polygonal filter screen.

[0018] Preferably, the filter screen is connected to the housing via a quick-release structure.

[0019] Preferably, the driving device is a hollow driving device.

[0020] Preferably, the drive device includes a drive gear rotatably connected to the housing via a rotating shaft, and a power device for driving the drive gear to rotate is connected to the drive gear, the power device being fixedly mounted on the housing; A driven gear ring is meshed with the driving gear, and the driven gear ring is circumferentially fixed to the filter screen.

[0021] Preferably, the two ends of the filter screen are sealed to the housing by rotating sealing rings, and the return outlet is located in the area between the two rotating sealing rings.

[0022] Preferably, it also includes a backwashing channel, and the housing is provided with a backwashing port, which is positioned facing the filter screen; One end of the backwash channel is connected to the housing via a backwash port.

[0023] Alternatively, preferably, it also includes a discharge channel, and the housing is further provided with a fluid discharge port, which is connected to the collection and filtration chamber. One end of the discharge channel is connected to the housing and is connected to the fluid discharge port.

[0024] Preferably, the filter screen is connected to the fluid inlet and the fluid outlet at its two ends, respectively.

[0025] 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 collection and filtration 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 collection and filtration 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 collection and filtration chamber is connected to a drain pipe, and a discharge pump is installed on the discharge channel.

[0026] This invention utilizes a driving device to drive the filter collection element into an active state, causing the pollutants collected in the filter collection element to become fluid. Based on this, combined with fluid driving fluid flow, it is beneficial to amplify the fluidity of the pollutants collected in the filter collection element. 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 the drawback of continuously decreasing filtration efficiency.

[0027] Because the filter screen is in an active state, the fluid flows out from different positions and / or directions 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, thus cleaning the screen, ensuring smoother flow, and maintaining the effective collection process. Simultaneously, the first and / or second channels are equipped with fluid drive devices to further enhance the tumbling, gathering, and adsorption of lint, fuzz, fibrous material, and particulate matter within the filter screen, further preventing clogging.

[0028] 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.

[0029] This invention, when filtering and collecting lint, fuzz, woven fabrics, and particulate matter, causes these materials to tumble, adhere to, and aggregate. During the discharge process, this facilitates the removal of lint, fuzz, woven fabrics, and particulate matter, reducing the likelihood of residue buildup on the filter screen and preventing clogging. This allows for the use of a higher-power fluid drive device to improve collection and filtration efficiency. The combined action of the drive device that moves the filter screen and the fluid drive device that drives the fluid flow intensifies the tumbling, adhering, and aggregating effects of lint, fuzz, woven fabrics, and particulate matter, further enhancing the filter screen's cleaning effect, preventing clogging, and ensuring uninterrupted filter flow. This guarantees that the efficiency of filtration and collection does not decrease during the process, and further enhances the collection and filtration efficiency by using a higher-power fluid drive device.

[0030] This invention utilizes a hollow drive device to drive the filter screen to rotate unidirectionally or bidirectionally around the central axis of the filter screen, further ensuring the smooth flow of the filter screen. The bidirectional rotation of the filter screen intensifies the tumbling, aggregation, and contamination of collected lint, fuzz, textile lint, and pollutant particles, further preventing filter screen clogging.

[0031] Because the filter screen is in an active state, the fluid inside the filter screen flows relative to it, causing undissolved detergent particles to continuously move within the filter screen. This ensures that the detergent particles constantly touch 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 clothes, thus improving the washing machine's washing efficiency.

[0032] Because the filter screen is in operation, the fluid flows out from the periphery of the filter screen and returns through the second pipe. This allows the tumbling, adhesion, and aggregation of lint, fuzz, fabric, and pollutant particles mixed in with the fluid entering the filter screen. Furthermore, it causes undissolved laundry detergent particles to continuously flow inside the filter screen, constantly touching and impacting it, thereby promoting the rapid dissolution of the laundry detergent particles.

[0033] This invention utilizes a partitioned sealing structure on the outer circumference of the filter screen to reduce the filtration and collection area. This is more effective when the content of lint, fuzz, textile fibers, and particulate matter is low, or when the user sets a short washing time. It allows for faster and better collection of lint, fuzz, textile fibers, and particulate matter, facilitating the collection and discharge of filtered clean products. At the same time, it intensifies the aggregation, tumbling, and friction of undissolved detergent particles, promoting their dissolution. This allows the rapidly dissolved detergent particles to circulate back into the washing machine for cleaning clothes, efficiently dissolving and effectively removing sweat stains and dirt from garments. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of a collection and filtration device.

[0035] Figure 2 This is an exploded view of a second structure of a collection and filtration device.

[0036] Figure 3 This is an exploded view of the connection between the connector body and the end cap.

[0037] Figure 4 This is an exploded view of a third structure of a collection and filtration device.

[0038] Figure 5 This is a schematic diagram of a washing machine structure.

[0039] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0040] Figure 7 This is a schematic diagram of a second structure for a washing machine.

[0041] Figure 8 This is a schematic diagram of a third type of washing machine structure.

[0042] Figure 9 for Figure 8 Enlarged view of section B in the middle.

[0043] Reference numerals: 1-Housing, 2-Return connector, 3-Connecting pipe, 4-Driving gear, 5-Driven gear ring, 6-Power unit, 7-Filter screen, 8-Rotating sealing ring, 9-Partition sealing structure, 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. Detailed Implementation

[0044] The present invention will be described below with reference to the accompanying drawings.

[0045] See Figures 1-5 As shown, the present invention provides a collection and filtration 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 collection and filtration element. The collecting filter element includes a housing 1, with a fluid inlet at one end and a return outlet on the circumferential surface of the housing 1; the return outlet is flat or slit-shaped and is arranged on the housing 1 along the axial direction of the filter screen 7. The housing 1 is provided with a hollow filter screen 7, the internal area of ​​the filter screen 7 is a collection and filtration chamber, and the fluid inlet is connected to the collection and filtration chamber. The return outlet is connected to the internal area of ​​the housing 1 where the filter screen 7 is located; The end of the first channel 10 connected to the collecting filter element is connected to the fluid inlet, and the end of the second channel 21 connected to the collecting filter element is connected to the return outlet through the return connector 2. The first channel 10 and / or the second channel 21 are provided with a fluid drive device for driving fluid flow; The housing 1 is also equipped with a drive device for driving the filter screen 7 to rotate around the axis of the filter screen 7.

[0046] In use, to better control the fluid, solenoid valves are installed on the first channel 10 and the second channel 21 according to the requirements of the rinsing effect of the filter screen 3. When the solenoid valves on the first channel 10 and the second channel 21 are opened, the fluid enters the collection and filtration chamber through the first channel 10 under the action of the fluid driving device. After being collected and filtered by the filter screen 7, the impurities in the fluid are filtered and collected by the hollow filter screen 7 and flow out through the second channel 21. The fluid driving device can be a water pump. During this process, the driving device drives the filter screen 7 to rotate around the central axis of the filter screen 7, so that when the fluid flows through the hollow filter screen 7, the impurities collected and filtered by the hollow filter screen 7 will not accumulate in the same position. At the same time, the hollow filter screen 7 is in a rotating state, so that impurities are not easy to adhere to the hollow filter screen 7, thereby effectively avoiding the problem of clogging of the hollow filter screen 7.

[0047] In one embodiment, see Figure 2 , Figure 4 As shown, several partition sealing structures 9 are also provided on the outer peripheral surface of the filter screen 7. The end of the partition sealing structure 9 away from the filter screen 7 extends toward the inner peripheral surface of the housing 1 and connects with it. The area enclosed by the adjacent partition sealing structures 9 and the inner wall of the housing 1 is the partition area. When the filter screen 7 rotates, the partition area passes through the return outlet in sequence and is connected to the return outlet.

[0048] The partitioned sealing structure 9 divides the area inside the housing 1 and outside the filter screen 7 into sections, so that the fluid passing through the filter screen 7 can only flow out from a certain area. As a result, the debris adsorbed on the filter screen 7 at the return outlet changes position under the action of the filter screen rotation, and is easily detached from the filter screen 7 and moves back towards the return outlet. This causes the filtered and collected debris to flow and accumulate, thereby increasing the impact force of the fluid on the inner wall of the filter screen 7 and preventing the filtered debris in the fluid from clogging the filter screen 7.

[0049] The partition sealing structure 9 is a plate-shaped elastic element, which ensures that the side of the partition sealing structure 9 away from the filter screen 7 is always in sealed contact with the housing 1 during the rotation of the filter screen 7.

[0050] In one embodiment, the filter screen 7 is a cylindrical filter screen 7 or a conical filter screen 7, and the end of the filter screen with a larger cross-sectional area of ​​the internal channel is connected to the fluid inlet.

[0051] To further increase the tumbling range of debris in the collection and filtration chamber, the cross-section of the filter screen 7 is set to a polygon. This allows the debris to abruptly touch the filter screen 7 as it flows with the fluid in the collection and filtration chamber, resulting in good movement of the debris in the collection and filtration chamber. This changes the direction of the debris's flow in the fluid, thereby increasing the tumbling range of the debris in the collection and filtration chamber and preventing debris from accumulating on or clogging the filter screen 7.

[0052] In one embodiment, the cross-sectional area of ​​the internal channel at one end of the filter screen connected to the fluid outlet is less than or equal to the cross-sectional area of ​​the internal channel of 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 of the fluid outlet.

[0053] The cross-sectional area of ​​the internal channel at one end of the filter screen connected to the fluid inlet is less than or equal to the cross-sectional area of ​​the internal channel of the fluid inlet, and the cross-sectional area of ​​the internal channel of the first channel is greater than or equal to the cross-sectional area of ​​the internal channel of the fluid inlet.

[0054] In one embodiment, such as Figures 2-3 As shown, the filter screen 7 is connected to the housing 1 via a quick-release structure.

[0055] The quick-release structure includes fixing rings set on both ends of the filter screen 7, namely a first fixing ring and a second fixing ring 14. The fluid inlet is connected to the collection filter chamber through the first fixing ring, and the fluid outlet is connected to the collection filter 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 rotatably and sealingly disposed in the mounting areas at both ends of the housing 1. A connecting seat 12 is connected to the end of the first fixed ring away from the collection and filtration chamber via a bracket 13. The bracket 13 and the connecting seat 12 are rotatably connected to the connecting seat 12 via an axial fixing structure. 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 collection and filtration 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 axial fixing structure includes a connecting column. 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. The 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.

[0056] In one embodiment, such as Figure 4 As shown, 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 screen 7 is fixedly connected to both ends with fixing rings, and the fluid inlet and fluid outlet are respectively connected to the collection and filter 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 collection and filtration 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 collection and filtration 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 at one end of the connecting pipe 3 connected to the filter screen 7. 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 rotating sealing ring 8 is connected to the fixed ring between the two limiting protrusions. The rotating sealing ring 8 is engaged in the area between the two limiting protrusions. When the fixed ring is located within the installation area, the rotary sealing ring 8 is in sealed contact with the housing 1; The drive unit drives the filter screen 7 to rotate around the central axis of the filter screen 7.

[0057] In one embodiment, the filter screen 7 is sealed to the housing 1 at both ends by rotating sealing rings, and the return outlet is located in the area between the two rotating sealing rings.

[0058] In one embodiment, a backwashing channel 23 is also included, one end of which is connected to the housing 1 and is disposed toward the filter screen 7; The housing 1 is provided with a backwash port 24, and the backwash channel 23 is connected to the housing 1 through the backwash port 24 to achieve rinsing of the filter screen 7, preventing debris from clogging the filter screen 7. After rinsing, the water and debris flow out from the fluid discharge port. The backwash port 24 is flat or slit-shaped and is arranged on the housing along the axial direction of the filter screen 7.

[0059] It also includes a discharge channel 11, and the housing 1 is also provided with a fluid outlet. The fluid outlet is connected to the collection and filtration chamber. One end of the discharge channel 11 is connected to the housing 1 and is connected to the fluid outlet. The discharge channel 11 is used to discharge the collected debris.

[0060] The filter screen 7 is connected to the fluid inlet and fluid outlet at its two ends, respectively.

[0061] See Figures 5-9 As shown, the present invention provides a washing machine, including a washing machine housing 19 and an outer drum. A drain pipe is connected to the outer drum. A collection and filtration device is fixedly installed 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 collection and filtration chamber both extend into the outer drum and are connected to the internal area of ​​the outer drum. The end of the discharge channel 11 away from the collection and filtration chamber is connected to the drain pipe. A discharge pump 20 is provided on the discharge channel 11. A collection and filtration device is horizontally installed inside the washing machine casing 19.

[0062] In use, the solenoid valves on the first channel 10 and the second channel 21 are opened. Under the action of the pump, the fluid flows from the first channel 10 into the filter screen 7, and then flows through the separation area formed by the adjacent partition sealing structure 9 and the inner wall of the housing 1 on the periphery of the filter screen 7 into the return outlet and out. During this process, the filter screen 7 filters and collects impurities in the fluid. The filter screen 7 is in a rotating state under the action of the driving device, which drives the filter screen 7 to rotate unidirectionally or bidirectionally, thereby increasing the amplitude of the tumbling of impurities within the filter screen 7. Simultaneously, because the fluid contains particulate cleaning agents, such as… As the laundry detergent tumbles with the water flow, the granular detergent dissolves, preventing the granular detergent from being filtered and collected. Furthermore, the partitioned sealing structure 9 facilitates the flow of lint, lint, contaminant particles, and laundry detergent particles within the collection and filtration chamber. This helps dissolve the laundry detergent particles and also promotes the tumbling, aggregation, and adhesion of lint, lint, and contaminant particles to new deposits on the filter screen 7, thus preventing debris from clogging the filter screen 7. When the collected debris needs to be discharged, the fluid flows into the filter screen 7 through the fluid inlet and then flows directly out through the fluid outlet, simultaneously discharging the debris from the filter screen 7. The filter screen 7 is a cone-shaped filter screen 7. When impurities are discharged from the filter screen 7, the fluid flows from the fluid inlet through the filter screen 7 to the fluid outlet. During this process, because the filter screen 7 has a cone-shaped constriction structure, the fluid squeezes and washes the lint, shavings, and pollutant particles on the inner wall of the filter screen 7, thereby cleaning the filter screen 7, preventing the filter screen 7 from clogging, making the filter screen 7 more unobstructed, and ensuring real-time and efficient filtration and collection.

[0063] When backwashing is required, turn on the backwash pump and solenoid valve on the backwash channel 23. The end of the backwash channel 23 away from the filter screen 7 is connected to a clean water source to achieve backwashing of the filter screen 7.

[0064] 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 collection and filtration device, comprising a first channel and a second channel, characterized in that, The first channel is connected to the second channel via a collection filter; The collecting filter includes a housing, with a fluid inlet at one end and a return outlet on the circumferential surface of the housing; The housing is equipped with a hollow filter screen, and the internal area of ​​the filter screen is a collection and filtration chamber. The fluid inlet is connected to the collection and filtration chamber. The return outlet is connected to the internal area of ​​the housing where the filter screen is located; The end of the first channel connected to the collecting filter element is connected to the fluid inlet, and the end of the second channel connected to the collecting filter element is connected to the return outlet. The first channel and / or the second channel are provided with a fluid drive device for driving fluid flow; The housing also contains a drive device for driving the filter screen to rotate around the filter screen axis.

2. The collection and filtration device as described in claim 1, characterized in that, The outer circumferential surface of the filter screen is also provided with several partition sealing structures. The end of the partition sealing structure away from the filter screen extends toward the inner circumferential surface of the shell and connects with it. The area enclosed by the adjacent partition sealing structures and the inner wall of the shell is a separation area. When the filter screen rotates, the separation area passes through the return outlet in sequence and connects with the return outlet.

3. The collection and filtration device as described in claim 2, characterized in that, The partitioned sealing structure is a plate-shaped elastic element.

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

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

6. The collection and filtration device as described in claim 5, characterized in that, The end of the filter screen with the larger cross-sectional area of ​​the internal channel is connected to the fluid inlet.

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

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

9. The collection and filtration device as described in claim 1, characterized in that, The driving device is a hollow driving device.

10. The collection and filtration device as described in claim 9, characterized in that, The drive device includes a drive gear that is rotatably connected to the housing via a rotating shaft. A power device for driving the drive gear to rotate is connected to the drive gear, and the power device is fixedly mounted on the housing. A driven gear ring is meshed with the driving gear, and the driven gear ring is circumferentially fixed to the filter screen.

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

12. The collection and filtration device as described in claim 9, characterized in that, It also includes a backwash channel, and the housing is provided with a backwash port, which is positioned facing the filter screen; One end of the backwash channel is connected to the housing via a backwash port.

13. A collection and filtration device as described in any one of claims 1-12, characterized in that, It also includes a discharge channel, and the housing is provided with a fluid discharge port, which is connected to the collection and filtration chamber. One end of the discharge channel is connected to the housing and is connected to the fluid discharge port.

14. The collection and filtration device as described in claim 1, characterized in that, The filter screen is connected to the fluid inlet and the fluid outlet at its two ends, respectively.

15. 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, The area between the washing machine housing and the outer drum is fixedly provided with a collection and filtration device as described in claim 13, wherein the ends of the first channel and the second channel away from the collection and filtration 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 collection and filtration chamber is connected to a drain pipe, and a discharge pump is installed on the discharge channel.

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