Filter assembly and washing equipment

Abstract

The invention discloses a filter assembly and washing equipment, and the filter assembly comprises a shell which is internally provided with a filtering cavity and is provided with a water inlet and a filtered water outlet; the filtering roller is rotatably arranged in the filtering cavity; the driving device is used for driving the filtering roller to rotate in the filtering cavity; the filter roller comprises: a roller rotating shaft, one end of which is provided with a mounting hole for insertion connection of a driving shaft of a driving device; a first shaft sleeve is arranged on the roller rotating shaft, the first shaft sleeve comprises a peripheral wall arranged on the roller rotating shaft in a sleeving mode and an end wall facing the driving device, a hole is formed in the end wall, and the driving shaft penetrates through the hole to be inserted into the mounting hole. The filter assembly can effectively filter line scraps and other impurities in water, self-cleaning of the filter assembly can be achieved, meanwhile, the first shaft sleeve is arranged on the filter rotating shaft, the roller rotating shaft on the filter roller is prevented from being cut by the driving device, and the phenomenon that the roller rotating shaft and the filter roller slip due to long-term operation is prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of washing, and in particular relates to a filter assembly and washing equipment. Background Art

[0002] During the washing process, due to the friction between the clothes and between the clothes and the washing machine itself, the clothes will produce lint and mix into the washing water. If the lint in the washing water cannot be removed, it is likely to adhere to the surface of the clothes after washing, affecting the washing effect of the clothes. For this reason, the existing washing machine is equipped with a filter for filtering lint, and the washing water is circulated through the filter during the washing process to remove the lint from the washing water.

[0003] The filter of an existing washing machine is generally set inside the inner drum or the drain pump to filter out lint and debris in the washing water. However, after a long period of use, the filter will be filled with lint and debris, which will affect the filtering effect of the filter, cause the drain valve / drain pump to be blocked, and easily breed bacteria. It needs to be cleaned in time, otherwise it will cause pollution of the washing water, secondary pollution of clothes, and affect the health of users. However, most washing machines require users to remove the filter and clean it manually, which is inconvenient to operate.

[0004] The Chinese patent application number 202111549817.0 discloses a filter element, a pump and a washing machine, wherein the filter element comprises a cylindrical shell, which is provided with through holes connected inside and outside; a cylindrical filter element, which is installed in the cylindrical shell, and the cylindrical filter element and the cylindrical shell peripheral wall form a chamber to be filtered, and the inside of the cylindrical filter element forms a filtered chamber; the grid through holes at the cylindrical shell peripheral wall form an inlet connected to the chamber to be filtered, and the end of the cylindrical shell is provided with a hollow opening connecting the filtered chamber with the outside. In the present application, a rotating shaft portion is provided, and the rotating shaft portion is directly in contact with the installation position of the pump housing, which may cause damage to the rotating shaft during long-term use.

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

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a filter assembly and a washing device, which are provided with a shell, a filter chamber is formed inside the shell, a filter drum is arranged in the filter chamber to filter the residual water of the washing machine, and a driving device is arranged at the same time to drive the filter drum to rotate and realize self-cleaning of the filter assembly; a shaft sleeve is provided on the drum shaft of the filter drum to reduce the grinding between the driving device and the drum shaft.

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

[0008] A first aspect of the present invention provides a filter assembly, comprising:

[0009] The shell has a filter cavity formed inside; the shell is provided with a water inlet and a filtered water outlet; the filter drum is rotatably arranged in the filter cavity; and the driving device drives the filter drum to rotate in the filter cavity.

[0010] Furthermore, the filter drum comprises: a drum shaft, one end of which is provided with a mounting hole for inserting and connecting a driving shaft of a driving device;

[0011] The drum shaft is provided with a first sleeve, which includes a peripheral wall sleeved with the drum shaft and an end wall facing the driving device. The end wall is provided with a hole, and the driving shaft passes through the hole and is inserted into the mounting hole.

[0012] Advantageously, the driving device drives the filter drum to rotate in the filter chamber, so that the filter assembly can be self-cleaned.

[0013] Advantageously, a shaft sleeve is provided on the drum shaft where the filter drum contacts the drive device, which can effectively protect the drum shaft, reduce the wear between the drive device and the drum shaft, and prevent the connection between the two from slipping after long-term use.

[0014] Furthermore, the filter drum also includes a filter portion, and a first groove is provided at the connection between the drum shaft and the filter portion; an extension portion is provided at the other end of the first shaft sleeve barrel wall, and the extension portion is clamped in the first groove.

[0015] Advantageously, the first sleeve is provided with an extension portion, which is clamped in the first groove, and can effectively prevent the first sleeve from moving in the axial direction or circumferential direction of the drum shaft.

[0016] Furthermore, the first sleeve and the drum shaft are integrally injection molded, and at least the end wall strength of the first sleeve is greater than the strength of the drum shaft.

[0017] Preferably, the first sleeve is made of metal material.

[0018] Advantageously, the one-piece injection molding can ensure that there is no gap between the first sleeve and the roller shaft, and at least the strength of the end wall is greater than the strength of the roller shaft, thereby ensuring the protective effect of the first sleeve on the roller shaft.

[0019] Furthermore, a first sealed bearing is disposed outside the first sleeve, and the first sealed bearing is sealedly connected to the first sleeve.

[0020] Advantageously, the drum shaft extends out of the filter chamber and is connected to the drive device, and is provided with a first sleeve and a first sealing bearing, which can effectively prevent the water in the filter chamber from leaking out, causing the leaked water to enter the drive device and cause the drive device to fail.

[0021] Furthermore, a rotary joint is provided on the filter drum at one end opposite to the drum shaft, and a channel is formed inside the rotary joint for connecting the filter part and the filtered water outlet.

[0022] Furthermore, a rib is provided on the rotary joint, and the rib is protruding from the end of the rotary joint; a gasket is provided between the end of the rotary joint and the filtered water outlet, and a preset distance is provided between the gasket and the rib.

[0023] Advantageously, providing ribs at the end of the rotary joint can reduce the area of ​​the friction surface when the filter drum moves axially; providing a gasket at a certain distance from the ribs can effectively prevent the filter drum from moving axially in the filter chamber.

[0024] Furthermore, the rotary joint is provided with a second sleeve, and the second sleeve is sleeved on the outer circumference of the rotary joint.

[0025] Advantageously, a second shaft sleeve is provided on the rotary joint sleeve, which can reduce the loss generated by the rotary joint during rotation.

[0026] Furthermore, a second groove is provided at the connection between the filter part and the rotary joint; the second sleeve is provided with a bending part, and the bending part abuts against the second groove.

[0027] Advantageously, the bent portion of the second sleeve abuts against the second groove, which can effectively prevent the second sleeve from shaking in the circumferential direction of the rotary joint.

[0028] Furthermore, a second sealed bearing is sleeved on the outer periphery of the second sleeve, and the second sealed bearing is sealedly connected to the second sleeve.

[0029] Advantageously, a second sealing bearing is provided between the rotary joint and the filtered water outlet, which can effectively prevent unfiltered water from leaking through the filtered water outlet and contaminating the filtered water.

[0030] A second aspect of the present invention provides a washing device, wherein the washing device is equipped with the above-mentioned filter assembly.

[0031] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0032] 1. In the filter assembly of the present invention, water flows into the filter chamber from the water inlet of the shell, and is discharged through the filtered water outlet after being filtered by the filter drum. The wire scraps in the water remain in the filter chamber, which can effectively filter the wire scraps in the water, and the filtered wire scraps can be collected at the same time.

[0033] 2. The driving device of the present invention is connected to the filter drum to drive the rotation of the filter drum, so that impurities such as wire scraps attached to the filter drum are separated due to the action of centrifugal force, enter the filter cavity, and then discharged from the filter assembly through the sewage outlet, thereby realizing the self-cleaning function of the filter assembly without the need for manual cleaning by the user.

[0034] 3. The present invention sets a first sleeve between the driving device and the drum shaft of the filter drum, wraps the entire drum shaft in the first sleeve, effectively prevents the driving device from cutting the drum shaft on the filter drum, and prevents the two from slipping due to long-term operation.

[0035] 4. The present invention sets ribs at the end of the rotary joint of the filter drum, and sets a gasket between the rotary joint of the filter drum and the filtered water outlet of the shell. The setting of the ribs and the gasket can effectively prevent the filter drum from moving axially in the filter chamber.

[0036] 5. The present invention provides a sealed bearing at the connection between the drum shaft and the shell of the filter drum, which can prevent water in the filter chamber from flowing out from the connection and causing failure of the drive device.

[0037] 6. The present invention provides a sealing bearing at the connection between the rotary joint and the filtered water outlet, which can prevent the unfiltered water in the filter chamber from leaking from the filtered water outlet and contaminating the filtered water.

[0038] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0040] Figure 1 It is a schematic structural diagram of the filter assembly of the present invention;

[0041] Figure 2 The present invention Figure 1 Schematic diagram of the structure of the AA section;

[0042] Figure 3 The present invention Figure 2 Middle B is an enlarged schematic diagram of the structure;

[0043] Figure 4 It is a schematic diagram of the structure of the present invention without the driving device and the outer cavity assembly of the pipeline;

[0044] Figure 5 The present invention Figure 4 Schematic diagram of the structure of the CC section.

[0045] In the figure: 100, driving device; 200, shell; 201, filtered water outlet; 202, water inlet; 203, sewage outlet; 300, filter drum; 301, rotary joint; 3011, rib position; 3012, second groove; 302, filter screen support; 303, filter screen; 304, drum shaft; 3041, first groove; 400, first sealed bearing; 401, second sealed bearing; 500, first sleeve; 5001, end wall; 5002, peripheral wall; 5003, extension part; 501, second sleeve; 5011, bending part; 600, gasket.

[0046] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0048] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] like Figures 1 to 5 As shown, in a first aspect of the present invention, a filter assembly is provided, comprising:

[0051] The shell 200 is provided with a water inlet 202, a filtered water outlet 201 and a sewage outlet 203; a filter cavity is formed inside the shell 200; a filter drum 300 is rotatably arranged in the filter cavity; and a driving device 100 drives the filter drum 300 to rotate in the filter cavity.

[0052] Specifically, in this example, the filter assembly is placed horizontally in the axial direction, and the housing 200 of the filter assembly is divided into two parts, left and right, which are connected together by bolts. A water inlet 202 is provided at the upper part of the left part, which is used to pass water to be filtered into the filter; a filtered water outlet 201 is provided in the middle of the right end of the filter assembly, which is used to discharge the water filtered by the filter assembly; a sewage outlet 203 is provided at the lower part of the filtered water outlet 201, which is used to discharge sewage in the filter assembly or impurities such as filtered wire scraps.

[0053] In this embodiment, a filter chamber is formed inside the housing 200, and water to be filtered enters the filter chamber through the water inlet 202, and impurities such as wire scraps are filtered out of the water through the filtering effect of the filter drum 300; the filtered water is discharged through the filtered water outlet 201; the filtered impurities such as wire scraps are discharged through the sewage outlet 203. The driving device 100 drives the filter drum 300 to rotate, and the impurities such as wire scraps attached to the filter drum 300 fall off the filter drum 300 due to the centrifugal force, and then are discharged through the sewage outlet 203, thereby realizing the self-cleaning of the filter assembly.

[0054] More specifically, the housing 200 includes two parts, a left part and a right part, and a stepped portion is provided between the tail end of the right part and the filtered water outlet 201. The stepped portion includes: a first step and a second step sequentially arranged outward from the filter cavity, the first step and the second step are both annular structures, and the caliber of the first step is larger than the caliber of the second step, the caliber of the second step is larger than the caliber of the filtered water outlet 201, and the caliber from the first step to the second step to the filtered water outlet 201 decreases step by step. The vertical surface of the first step is the first limiting surface; the vertical surface of the second step is the second limiting surface, and the height of the first limiting surface is larger than the height of the second limiting surface.

[0055] Specifically, the driving device 100 is disposed on the left side of the housing 200 and outside the filter cavity, that is, outside the housing 200. The driving device 100 is provided with a driving shaft, which is connected to the filter drum 300 through the driving shaft to drive the filter drum 300 to rotate. A fixing member is provided between the driving device 100 and the housing 200, and the driving device 100 and the housing 200 are connected together through the fixing member.

[0056] More specifically, a bolt hole is provided on the left side surface of the left part of the shell 200, and the fixing piece is connected to the shell 200 by bolts. A mounting hole is provided at the center position of the fixing piece, and the driving device 100 is installed in the mounting hole through the mounting part, thereby fixing the driving device 100 to the shell 200.

[0057] In this example, the water inlet 202 , the filtered water outlet 201 , and the sewage outlet 203 provided on the housing 200 are arranged parallel to the axial direction of the filter assembly.

[0058] In another embodiment, the axis of the filter assembly is horizontally arranged, the filtered water outlet 201 is oriented horizontally, the water inlet 202 is vertically arranged upward, and the sewage outlet 203 is vertically arranged downward; or the axis of the filter assembly is vertically arranged, the filtered water outlet 201 is vertically arranged downward, and the water inlet 202 and the sewage outlet are oriented oppositely and parallel to the horizontal direction.

[0059] Furthermore, the filter drum 300 comprises: a drum shaft 304, one end of which is provided with a mounting hole for the drive shaft of the drive device 100 to be inserted and connected;

[0060] The drum shaft 304 is provided with a first sleeve 500, which includes a peripheral wall 5002 sleeved on the drum shaft 304 and an end wall 5001 facing the driving device 100. The end wall 5001 is provided with a through hole, and the driving shaft passes through the through hole and is inserted into the mounting hole.

[0061] Specifically, a drum shaft 304 is provided on the left side of the filter drum 300, one end of which extends out of the filter cavity and is connected to the driving device 100. Specifically, a mounting hole is provided in the center of the drum shaft 304 in the same axial direction as the filter assembly, and the driving shaft of the driving device 100 is inserted into the mounting hole. The driving device 100 drives the shaft to rotate, thereby driving the filter drum 300 to rotate.

[0062] Specifically, the first sleeve 500 includes a peripheral wall 5002 and an end wall 5001. The peripheral wall 5002 is sleeved on the outer periphery of the drum shaft 304. The end wall 5001 is arranged at one end of the drum shaft 304 facing the driving device 100. A through hole is arranged on the end wall 5001. The shape and diameter of the through hole are the same as the mounting hole arranged on the drum shaft 304, so that the driving shaft can pass through the through hole and be inserted into the mounting hole. The inner diameter of the peripheral wall 5002 matches the outer diameter of the drum shaft 304, so that the first sleeve 500 is exactly sleeved on the drum shaft 304. The first sleeve 500 is sleeved on the outer periphery of the drum shaft 304 as a whole, so as to protect the drum shaft 304 as a whole.

[0063] Furthermore, the drum shaft 304 also includes a filter portion; a first groove 3041 is provided at the connection between the drum shaft 304 and the filter portion; an extension portion 5003 is provided at the other end of the peripheral wall 5002 of the first sleeve 500, and the extension portion 5003 is snap-fitted into the first groove 3041.

[0064] Specifically, in this embodiment, the drum shaft 304 is arranged on the left side, and the filter part provided for the filter drum 300 is connected to the drum shaft 304; a first groove 3041 is provided at the connection between the drum shaft 304 and the filter part, for realizing the clamping and fixing of the first sleeve 500. The end of the peripheral wall 5002 of the first sleeve 500 that is not connected to the end wall 5001 extends outward to form an extension part 5003 extending outward, and the bending arc of the extension part 5003 is the same as the arc of the connection between the drum shaft 304 and the filter part. The extension part 5003 is inserted into the first groove 3041 at the connection between the drum shaft 304 and the filter part to realize fixing, which can effectively prevent the first sleeve 5000 from moving in the circumferential direction or axial direction of the drum shaft 304.

[0065] Furthermore, the first sleeve 500 and the drum shaft 304 are integrally injection-molded, and at least the end wall 5001 of the first sleeve 500 is stronger than the drum shaft 304 .

[0066] Specifically, during the manufacturing process, the drum shaft 304 is integrally injection molded into the first sleeve 500, so that the first sleeve 500 and the drum shaft 304 are integrally formed, reducing the possibility of relative rotation between the first sleeve 500 and the drum shaft 304. At the same time, at least the strength of the end wall 5001 of the first sleeve 500 is ensured to be greater than the strength of the drum shaft 304, which can better protect the drum shaft 304.

[0067] Preferably, the first sleeve 500 is made of metal material, which not only increases the strength of the first sleeve 500 but also reduces the friction between the driving device 100 and the first sleeve 500.

[0068] Furthermore, a first sealed bearing 400 is disposed outside the first sleeve 500 , and the first sealed bearing 400 is sealedly connected to the first sleeve 500 .

[0069] Specifically, a third step is provided at the leftmost end of the left half of the housing 200, and a vertical third limit surface is provided on the third step. A first sealing bearing 400 is provided on the outer periphery of the first sleeve 500, and the first sealing bearing 400 is annular. The distance from the inner wall to the outer wall of the first sealing bearing 400 is at least the same as the height of the third limit surface of the third step. The left end side wall of the first sealing bearing 400 abuts against the third limit surface, which can effectively prevent the first sealing bearing 400 from moving in the axial direction of the filter assembly; the first sealing bearing 400 is sealedly connected to the first sleeve 500, which can effectively prevent the water in the filter cavity from leaking from the connection, causing the drive device 100 to fail.

[0070] In this embodiment, the filter part of the filter drum 300 is connected to the drum shaft 304 and arranged in the filter cavity; the filter part includes a filter mesh support part 302 and a filter mesh 303, and the filter mesh 303 covers the filter mesh support part 302, dividing the interior of the filter cavity into a cavity to be filtered and a filtered cavity.

[0071] Specifically, the part of the filter drum 300 located in the filter cavity is hollowed out to form a filter screen support part 302. The cross-sectional area of ​​the middle area of ​​the filter screen support part 302 is constant, and the left and right ends thereof have a conical structure, so that the local surface of the filter screen support part 302 is inclined, which is conducive to the shedding of the attached wire scraps. The filter screen 303 is set in the hollow area, that is, the filter screen 303 is covered on the filter screen support part 302. Due to the division of the filter screen 303, the entire filter cavity is divided into a cavity to be filtered and a cavity to be filtered. When water enters the filter cavity for filtration, due to the interception of the filter screen 303, the impurities such as the filtered wire scraps are isolated in the cavity to be filtered, and the filtered water enters the filtered cavity, which can effectively separate the impurities such as the wire scraps from the filtered water, and prevent the filtered water from secondary pollution.

[0072] Furthermore, a rotary joint 301 is provided at one end of the filter drum 300 opposite to the drum shaft 304 , and a channel is formed inside the rotary joint 301 for connecting the filter part and the filtered water outlet 201 .

[0073] In this embodiment, a drum shaft 304 is provided at the left end of the filter drum 300, a filter portion is in the middle, and a rotary joint 301 is provided at the right end. One end of the rotary joint 301 is connected to the filter screen support portion 302, and the other end is inserted into the step portion and is rotatably sealed and connected to the step portion.

[0074] Specifically, a rotary joint 301 is provided at the right end of the filter drum 300. One end of the rotary joint 301 is connected to the filter support 302, and the other end extends to the right and is inserted in the step portion. The length of the rotary joint 301 is as long as the second step, and its end is close to the second limit surface. A transition section is provided at the connection between the left side of the rotary joint 301 and the filter support 302 to achieve a smooth transition between the connection between the filter support 302 and the rotary joint 301. A channel is formed inside the rotary joint 301, connecting the filter part and the filtered water outlet 201. After the water entering the filter assembly from the water inlet 202 is filtered by the filter drum 300, it flows to the filtered water outlet 201 through the channel of the rotary joint 301 and is discharged through the filtered water outlet 201.

[0075] Furthermore, a rib 3011 is provided on the rotary joint 301, and the rib 3011 is provided protruding from the end of the rotary joint 301;

[0076] A gasket 600 is provided between the end of the rotary joint 301 and the filtered water outlet 201 , and a preset distance is provided between the gasket 600 and the rib position 3011 .

[0077] Specifically, in the present embodiment, the right side of the filter drum 300 is connected to the rotary joint 301, and a rib 3011 is provided at the end of the rotary joint 301. The rib 3011 is arranged in an annular manner, and the outer edge of the rotary joint 301 is retracted inward to form the outer edge of the rib 3011, and the rib 3011 protrudes from the end of the rotary joint 301; a gasket 600 is provided between the end of the rib 3011 arranged on the rotary joint 301 and the filtered water outlet 201, and the gasket 600 is an annular structure, and the gasket 600 is against the second limiting surface of the second step, and the distance between the inner wall and the outer wall thereof is at least the same as the height of the second limiting surface. The arrangement of the rib 3011 and the gasket 600 can effectively prevent the filter drum 300 from moving along the axial direction of the filter assembly in the filter cavity.

[0078] In this embodiment, the distance between the end of the rib 3011 set at the rightmost end of the rotating joint 301 and the gasket 600 is reserved to be less than 0.5 mm, which can prevent the filter drum 300 from causing damage to the gasket 600 when rotating, and prevent the filter drum 300 from moving along the axial direction of the filter assembly in the filter cavity.

[0079] Furthermore, the rotary joint 301 is provided with a second sleeve 501 , and the second sleeve 501 is sleeved on the outer circumference of the rotary joint 301 for protecting the rotary joint 301 .

[0080] Preferably, in this embodiment, the second sleeve 501 and the rotary joint 301 are integrally injection-molded; and the second sleeve 501 is made of metal.

[0081] Furthermore, a second groove 3012 is provided at the connection between the filter part and the rotary joint 301; the second sleeve 501 is provided with a bending part 5011, and the bending part 5011 is low-connected in the second groove 3012 to prevent the second sleeve 501 from moving around the rotary joint 301.

[0082] Furthermore, a second sealed bearing 401 is sleeved on the outer periphery of the second shaft sleeve 501 , and the second sealed bearing 401 is sealedly connected to the second shaft sleeve 501 .

[0083] Specifically, the outer periphery of the rotary joint 301 is provided with a second sleeve 501, and the right end of the second sleeve 501 is slightly shorter than the right end of the rotary joint 301, so that the rib 3011 set on the rotary joint 301 can just protrude; a second groove 3012 is provided at the connection between the rotary joint 301 and the filter part, which is used to abut the second sleeve 501; the left end of the second sleeve 501 is also provided with an outward bending structure to match the arc transition at the connection between the rotary joint 301 and the filter support part 302, forming a bending part 5011. At the end of the left half of the filter drum 300, a second groove 3012 is provided, and the horizontal plane of the second groove 3012 is the fourth limiting surface, and the end of the bending part 5011 of the second sleeve 501 abuts on the fourth limiting surface. The setting of the second sleeve 501 fits the shape of the rotary joint 301, ensuring that the second sleeve 501 can be better sleeved on the rotary joint 301, and plays a protective role on the rotary joint 301.

[0084] Specifically, a second sealed bearing 401 is provided outside the second sleeve 501. The second sealed bearing 401 is an annular structure and is sealed and connected to the second sleeve 501, effectively preventing unfiltered water from leaking at the connection. The distance from the inner wall to the outer wall of the second sealed bearing 401 is at least the same as the height of the first limit surface of the first step of the step portion, and its right side abuts against the first limit surface. The outer wall of the second sealed bearing 401 abuts against the horizontal surface of the first step, which can prevent the second sealed bearing 401 from moving along the axial direction of the filter assembly during operation.

[0085] In this embodiment, when washing water is filtered, the washing water to be filtered is transported to the filter assembly, and enters the chamber to be filtered inside the filter chamber from the water inlet 202. When passing through the filter drum 300, impurities such as lint in the washing water are blocked by the filter net 303 and adhere to the surface of the filter net 303, so that the washing water entering the filtered chamber no longer contains impurities such as lint. The clean washing water after filtration passes through the rotary joint 301 and finally flows out of the filter chamber from the filtered water outlet 201.

[0086] When the filter assembly needs to be cleaned, the filter drum 300 is driven to rotate in the filter chamber through a driving device 100, such as a motor, to stir the residual water in the filter chamber, so that impurities such as lint on the surface of the filter mesh 303 are peeled off from the filter mesh 303 under the action of centrifugal force and turbulent water flow, and merged into the water in the filter chamber, and then discharged from the filter chamber through the sewage outlet 203, thereby realizing the self-cleaning function of the filter assembly without the need for manual cleaning by the user.

[0087] In this embodiment, the filter drum 300 is supported by a drum shaft 304 and a rotary joint 301 at both ends, ensuring that the filter drum 300 rotates smoothly and stably in the filter chamber. At the same time, the first sleeve 500 can reduce the wear between the drive device 100 and the drum shaft 304, and extend the service life of the drum shaft 304; the first sealing bearing 400 prevents the drum shaft 304 from contacting water, avoiding failure of the drum shaft 304.

[0088] In this embodiment, a rib 3011 is provided at the end of the rotary joint 301, and a gasket 600 is provided between the rotary joint 301 and the filtered water outlet 201, which can effectively prevent the filter drum 300 from axially moving in the filter chamber. At the same time, a second sleeve 501 is provided on the outer periphery of the rotary joint 301 to protect the rotary joint 301, and a second sealing bearing 401 is provided to seal the rotary joint 301 and the filtered water outlet 201 to prevent unfiltered water from entering the filtered water outlet 201 through the connection, causing secondary contamination of the filtered water.

[0089] A second aspect of the present invention provides a washing device, wherein the washing device is equipped with the above-mentioned filter assembly.

[0090] In this embodiment, the filter assembly can be applied to the drainage of the washing equipment. The water inlet of the filter assembly is connected to the drainage outlet of the water drum of the washing equipment, and the filtered water outlet 201 of the filter assembly is connected to the drainage pipe of the washing equipment, so that the filter assembly can be used to filter the lint of the drainage water flow of the washing equipment, thereby achieving the effect of filtering the lint of the drainage water flow of the washing machine.

[0091] In this embodiment, the filter assembly can also be applied to the external circulation water of the washing equipment. The water inlet of the filter assembly is connected with the water outlet at the bottom of the water drum of the washing equipment, and the filtered water outlet 201 of the filter assembly is connected with the water inlet at the upper part of the water drum via the external circulation pipe, so as to form a circulating water flow between the water drum of the washing equipment and the external circulation pipe, and the filter assembly is used to filter the lint of the circulating water flowing through, thereby achieving the effect of filtering the lint of the washing water.

[0092] At the same time, whether the filter assembly is used for drainage filtration of washing equipment or external circulation water filtration, the rotatable filter drum 300 provided in the filter assembly can be used to filter and intercept tiny fibers, wire scraps, etc. in the water path, and the intercepted tiny wire scraps are aggregated and collected by the rotating filter drum 300. The filter drum 300 is driven to rotate in the filter cavity by the driving device 100, stirring the residual water in the filter cavity, so that the wire scraps and other impurities on the surface of the filter net 303 are peeled off from the filter net 303 under the action of centrifugal force and agitated water flow, and merged into the water in the filter cavity, and then discharged from the filter cavity through the sewage outlet 203, realizing the self-cleaning function of the filter assembly.

[0093] During the self-cleaning process of the filter assembly, the driving shaft of the driving device 100 is installed in the mounting hole of the drum shaft 304, driving the filter drum 300 to rotate. After long-term use, the driving shaft will grind the mounting hole of the filter drum 300. Therefore, a shaft sleeve is sleeved on the outside of the drum shaft 304 to effectively reduce the grinding of the driving shaft of the driving device 100 on the mounting hole and avoid slipping between the two due to long-term operation.

[0094] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A filter assembly comprising: A shell body, a filter chamber is formed inside, and a water inlet and a filtered water outlet are provided on the shell body; A filter drum is rotatably disposed in the filter chamber; A driving device drives the filter drum to rotate in the filter chamber; characterized in that: The filter drum comprises: a drum shaft, one end of which is provided with a mounting hole for the drive shaft of the drive device to be inserted and connected; The drum shaft is provided with a first sleeve, which includes a peripheral wall sleeved on the drum shaft and an end wall facing the driving device. The end wall is provided with a through hole, and the driving shaft passes through the through hole and is inserted into the mounting hole.

2. The filter assembly according to claim 1, characterized in that: The filter drum also includes a filter portion; a first groove is provided at the connection between the drum shaft and the filter portion; an extension portion is provided at the other end of the peripheral wall of the first sleeve, and the extension portion is clamped in the first groove.

3. The filter assembly according to claim 2, characterized in that: The first sleeve is integrally injection molded with the drum shaft, and at least the end wall strength of the first sleeve is greater than the strength of the drum shaft; Preferably, the first sleeve is made of metal material.

4. The filter assembly according to claim 3, characterized in that: A first sealed bearing is disposed outside the first sleeve, and the first sealed bearing is sealedly connected to the first sleeve.

5. The filter assembly according to claim 2, characterized in that: A rotary joint is provided on the filter drum at one end opposite to the drum shaft, and a channel is formed inside the rotary joint for connecting the filter part and the filtered water outlet.

6. The filter assembly according to claim 5, characterized in that: The rotary joint is provided with a rib, and the rib is protruding from the end of the rotary joint; A gasket is arranged between the end of the rotary joint and the filtered water outlet, and a preset distance is arranged between the gasket and the rib position.

7. The filter assembly according to claim 6, characterized in that: The rotary joint is provided with a second shaft sleeve, and the second shaft sleeve is sleeved on the outer circumference of the rotary joint.

8. The filter assembly according to claim 7, characterized in that: A second groove is provided at the connection between the filter part and the rotary joint; and a bending part is provided at the second sleeve, and the bending part abuts against the second groove.

9. The filter assembly according to claim 8, characterized in that: A second sealed bearing is sleeved on the outer periphery of the second shaft sleeve, and the second sealed bearing is sealedly connected to the second shaft sleeve.

10. A washing device, characterized in that: A filter assembly as described in any one of claims 1 to 9 is installed.

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