A circulating filter device and a laundry treating apparatus

Abstract

The utility model relates to clothes processing equipment technical field, the utility model discloses a kind of circulating filtering device and clothes processing equipment, device includes: shell, fine filtering structure is arranged in the containing cavity of shell;Fine filtering structure includes filter screen;Filter screen separates containing cavity into first chamber and second chamber, the interface of drainage inlet and containing cavity, the interface of drainage outlet and containing cavity are located first chamber, circulating water outlet and the interface of containing cavity are located second chamber, first chamber and second chamber are communicated by filter screen;Cleaning structure, cleaning structure is arranged in second chamber, and cleaning structure is used to clean filter screen;Driving structure, driving structure is connected with cleaning structure, and driving structure is used to drive cleaning structure rotation.By driving structure driving cleaning structure realizes the cleaning of filter screen, improve the cleaning effect of filter screen, solve the problem of filter screen blockage.

Description

Technical Field

[0001] This utility model relates to the technical field of clothing processing equipment, and in particular to a circulating filtration device and clothing processing equipment. Background Technology

[0002] With the increasing popularity of garment processing equipment, its water-saving performance has become a new focus. Existing garment processing equipment recycles wastewater to improve the efficiency of washing water utilization. However, debris in the wastewater can easily cause secondary pollution of clothes and may also clog the drainage channels. Therefore, filters are installed in the drainage channels. However, these filters are prone to clogging, and how to clean them is a technical problem that urgently needs to be solved. Utility Model Content

[0003] In view of this, the present invention provides a circulating filtration device and a clothing processing equipment.

[0004] Specifically, the following technical solutions are included:

[0005] In a first aspect, a circulating filtration device is provided for use in garment processing equipment, comprising:

[0006] The housing has a receiving cavity, and the housing is provided with a drain inlet, a drain outlet, and a circulating water outlet. The drain inlet is connected to the drain port of the clothing processing equipment, the drain outlet is connected to the external environment, and the circulating water outlet is connected to the washing drum of the clothing processing equipment.

[0007] A fine filtration structure is disposed in the receiving cavity of the housing; the fine filtration structure includes a filter screen; the filter screen divides the receiving cavity into a first cavity and a second cavity, the interface between the drain inlet and the receiving cavity and the interface between the drain outlet and the receiving cavity are located in the first cavity, and the interface between the circulating water outlet and the receiving cavity is located in the second cavity, and the first cavity and the second cavity are connected through the filter screen;

[0008] A cleaning structure is provided in the second cavity, and the cleaning structure is used to clean the filter screen;

[0009] A driving structure is provided, which is connected to the cleaning structure and is used to drive the cleaning structure to rotate.

[0010] For example, the cleaning structure includes a cleaning bracket and a scraper, the scraper being disposed on the cleaning bracket, and the cleaning bracket being connected to the drive structure.

[0011] For example, the scraper is made of a flexible material.

[0012] The scraper bar interferes with the filter screen, and / or the scraper bar engages with the cleaning bracket.

[0013] For example, the shape of the filter screen is the shape of the outer surface of the rotating body, and the shape of the cleaning structure matches the shape of the axial section passing through the rotation center of the filter screen.

[0014] For example, the shape of the filter screen is the shape of the outer surface of the rotating body, and the shape of at least a portion of the outer contour of the scraper matches the shape of the side generatrix of the filter screen.

[0015] For example, the shape of the filter screen is at least a portion of the shape formed by the side and top surfaces of a frustum.

[0016] For example, the apex angle of the frustum is greater than 0° and less than or equal to 30°.

[0017] For example, the circulating filtration device further includes a coarse filtration structure;

[0018] The top surface of the frustum is closer to the coarse filter structure than the bottom surface of the frustum;

[0019] The coarse filter structure is located in the first cavity.

[0020] For example, the fine filtration structure further includes a support, which includes a first support for supporting the filter screen and a second support disposed on the bottom surface of the frustum. The first support and the second support are connected, and the second support is provided with water-permeable holes.

[0021] For example, a first seal is provided between the second bracket and the inner wall of the housing.

[0022] For example, the circulating filter device further includes a connecting frame; the connecting frame includes a connecting strip extending axially along the housing.

[0023] The coarse filter structure and the connecting strip are fixedly connected, and the fine filter structure and the end of the connecting strip away from the coarse filter structure are connected.

[0024] For example, the cleaning structure includes a cleaning bracket;

[0025] The housing has a first through hole at the first end of the second cavity. The drive structure includes a drive motor and a drive shaft. The drive motor is fixed to the outside of the first end, and the drive shaft passes through the first through hole and is fixedly connected to the cleaning bracket.

[0026] In a second aspect, a garment processing device is provided, which is equipped with a circulating filtration device as described in the first aspect.

[0027] The beneficial effects of the technical solution provided by this utility model include at least the following:

[0028] This invention achieves filter cleaning by setting up a cleaning structure and driving the cleaning structure through a drive structure, thereby improving the cleaning effect of the filter and solving the problem of filter clogging. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of a circulating filtration device according to an embodiment of the present invention;

[0031] Figure 2 This is a cross-sectional structural diagram of a circulating filtration device according to an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the installation structure of a fine filtration structure according to an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram showing the connection of the fine filter structure, the coarse filter structure, and the drive structure in one embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of the cleaning structure according to an embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the cleaning structure installation according to one embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the installation of the fine filter structure and the coarse filter structure according to an embodiment of the present invention;

[0037] Figure 8 This is a schematic diagram of a coarse filter structure according to an embodiment of the present invention;

[0038] Figure 9 This is another schematic diagram of the coarse filter structure according to one embodiment of the present invention;

[0039] Figure 10 This is another structural schematic diagram of a circulating filtration device according to one embodiment of the present invention;

[0040] Figure 11 This is another structural schematic diagram of a circulating filtration device according to one embodiment of the present invention;

[0041] Figure 12 This is another structural schematic diagram of a circulating filtration device according to an embodiment of the present invention.

[0042] The reference numerals in the figure are respectively:

[0043] 1-Shell; 11-Drain inlet; 11A-First interface; 12-Drain outlet; 12A-Second interface; 13-Circulating water outlet; 13A-Third interface; 14-Limiting groove; 15-Positioning platform; 16-First cavity; 17-Second cavity; 2-Coarse filter structure; 21-First plate; 22-Second plate; 23-Baffle plate; 24-Breakthrough column; 25-Breakthrough rod; 3-Fine filter structure; 31-First support; 32-Second support; 321-First support plate; 322-Second support plate; 323- 324-Fourth support plate; 325-Sealing groove; 33-Water permeable hole; 34-Filter screen; 4-Drive structure; 41-Drive motor; 42-Second seal; 43-Drive shaft; 5-Handle; 51-Claw; 6-Drain pump; 7-Circulation pump; 8-Connecting frame; 81-Connecting strip; 82-End plate; 821-End groove; 822-Clamping plate; 9-First seal; 10-Cleaning structure; 101-Cleaning bracket; 102-Scraper; 102A-First scraper arm; 102B-Second scraper arm;

[0044] The accompanying drawings have illustrated specific embodiments of the present invention, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0046] Before further describing the embodiments of this utility model in detail, the directional terms involved in the embodiments of this utility model, such as "upper part," "lower part," and "side part," are used to refer to... Figure 1 The orientation shown is a reference and does not limit the scope of protection of this utility model.

[0047] To make the technical solution and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0048] like Figure 1 , Figure 2 As shown in the figure, this disclosure provides a circulating filtration device for use in a clothing processing device, comprising: a housing 1 having a receiving cavity, and a drain inlet 11, a drain outlet 12, and a circulating water outlet 13. The drain inlet 11 is connected to the drain outlet of the clothing processing device, the drain outlet 12 is connected to the external environment, and the circulating water outlet 13 is connected to the washing drum of the clothing processing device. A fine filtration structure 3 is disposed within the receiving cavity. The fine filtration structure 3 includes a filter screen 34, which divides the receiving cavity into a first cavity 16 and a second cavity 17. The interface between the drain inlet 11 and the receiving cavity is the first interface 11A, the interface between the drain outlet 12 and the receiving cavity is the second interface 12A, both located in the first cavity 16, and the interface between the circulating water outlet 13 and the receiving cavity is the third interface 13A, both located in the second cavity 17. The first cavity 16 and the second cavity 17 are connected through the filter screen 34. A cleaning structure 10 is disposed in the second cavity 17 and is used to clean the filter screen 34. A drive structure 4 is disposed on the housing 1 and is connected to the cleaning structure 10. The drive structure 4 is used to drive the cleaning structure 10 to rotate.

[0049] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, the housing 1 is a cylindrical structure with a receiving cavity. The coarse filter structure 2 and the fine filter structure 3 are arranged in the receiving cavity of the housing 1. The filter screen 34 of the fine filter structure 3 divides the receiving cavity into a first cavity 16 and a second cavity 17. The first cavity 16 and the second cavity 17 can only be connected through the filter screen 34. The water in the first cavity 16 can only enter the second cavity 17 through the filter screen 34 and cannot bypass the filter screen 34 to enter the second cavity. That is, the water in the first cavity 16 enters the second cavity 17 after being filtered by the filter screen 34. The water in the second cavity 17 is cleaner than the water in the first cavity 16.

[0050] The housing 1 has a drain inlet 11, a drain outlet 12, and a circulating water outlet 13. The interface between the drain inlet 11 and the receiving cavity is a first interface 11A, the interface between the drain outlet 12 and the receiving cavity is a second interface 12A, and the interface between the circulating water outlet 13 and the receiving cavity is a third interface 13A. The interface 11A between the drain inlet 11 and the receiving cavity is located in the first cavity 16, the interface 12A between the drain outlet 12 and the receiving cavity is located in the first cavity 16, and the coarse filter structure 2 is located in the first cavity 16. The interface 13A between the circulating water outlet 13 and the receiving cavity is located in the second cavity 17, and the specific location is not limited. For example, Figure 1As shown, the drain inlet 11 is located on one side of the axis of the housing 1, and the drain outlet 12 and the circulating water outlet 13 are located on the other side of the axis of the housing 1. Exemplarily, the axes of the drain outlet 12 and the circulating water outlet 13 are parallel to each other. Exemplarily, the axis of the drain outlet 12 is perpendicular to the axis of the drain inlet 11. Exemplarily, the axes of the drain inlet 11, the drain outlet 12, and the circulating water outlet 13 are all perpendicular to the axis of the housing 1. Exemplarily, the axes of the coarse filter structure 2, the fine filter structure 3, and the housing 1 are substantially coincident. Exemplarily, the interfaces 11A of the drain inlet 11 and the receiving cavity, 12A of the drain outlet 12 and the receiving cavity, and 13A of the circulating water outlet 13 and the receiving cavity are arranged sequentially along the axial direction of the housing 1. The coarse filter structure 2 is disposed between the drain inlet 11 and the drain outlet 12; that is, the projection of the coarse filter structure 2 onto the housing axis lies between the projections of the drain inlet 11 and the drain outlet 12 onto the housing axis. Fine filtration structure 3 is disposed in the receiving cavity of housing 1. Fine filtration structure 3 is disposed between drain outlet 12 and circulating water outlet 13. That is to say, the projection of fine filtration structure 3 on the axis of housing 1 is disposed between the projection of drain outlet 12 on the axis of housing 1 and the projection of circulating water outlet 13 on the axis of housing 1.

[0051] For example, in other embodiments, the positions of the first interface 11A, the second interface 12A, and the third interface 13A can be found in [reference needed]. Figure 10 , Figure 11 and Figure 12 As shown. For example, the first interface 11A is located on one side of the axis of housing 1, and the second interface 12A and the third interface 13A are located on the other side of the axis of housing 1. An angle is formed between the axes of the drain outlet 12 and the circulating water outlet 13. The axis of the drain outlet 12 is perpendicular to the axis of the drain inlet 11. Alternatively, for example, the first interface 11A, the second interface 12A, and the third interface 13A are located on the same side of the axis of housing 1. The first interface 11A is located on one side of the axis of housing 1, and the second interface 12A and the third interface 13A are located on the other side of the axis of housing 1. An angle is formed between the axes of the drain outlet 12 and the circulating water outlet 13. The size of the angle can be set according to requirements.

[0052] Water from the washing drum of the garment processing equipment enters the first chamber 16 through the drain outlet and drain inlet 11. After being filtered by the coarse filter structure 2, it is discharged to the outside environment through the drain outlet 12. The water in the first chamber 16 enters the second chamber 17 through the filter screen, and the water in the second chamber 17 can be recycled back to the washing drum of the garment processing equipment. In this way, the water recycled back to the garment processing equipment is cleaner. For example, to improve the coarse filtration effect, the coarse filter structure 2 can be set between the drain inlet 11 and the drain outlet 12. For example, the coarse filter structure 2 is at least one of the following structures: perforated plate, grid, bar, and comb.

[0053] Understandably, the circulating filtration device also includes a water pump that controls the direction of water flow. Exemplarily, the circulating filtration device also includes a drain pump 6 and a circulation pump 7, wherein the drain pump 6 facilitates the discharge of water from the first chamber 16 from the drain outlet 12; and the circulation pump 7 facilitates the discharge of water from the second chamber 17 from the circulating water outlet 13 into the washing drum. Understandably, the drain pump 6 operates when the laundry handling equipment drains water, and the circulation pump 7 operates when circulating water into the washing drum; water circulation typically occurs during the washing phase, the rinsing phase, or both the washing and rinsing phases. When the circulation pump 7 is operating, the drain pump 6 is typically not operating.

[0054] Understandably, the filter screen 34 has two surfaces: a first surface located in the first chamber 16 and a second surface located in the second chamber 17. Debris, lint, and other contaminants in the water adhere to the first surface, potentially causing blockage after a period of use, preventing water from entering the second chamber 17 from the first chamber 16. Although the water in the first chamber 16 has some flushing effect on the filter screen 34 when it enters the second interface 12A, the flushing force is insufficient. Therefore, a cleaning structure 10 is provided to clean the filter screen 34. The cleaning structure 10 is driven by the drive structure 4. The rotating cleaning structure 10 loosens the debris, lint, and other contaminants attached to the filter screen 34, allowing the loosened contaminants to be flushed away when the water in the first chamber 16 enters the second interface 12A, thus cleaning the filter screen 34. Furthermore, the drive structure 4 is used to change the rotation direction of the cleaning structure 10 to improve the loosening effect.

[0055] For example, the drive structure 4 is used to drive the cleaning structure 10 to rotate about the axis of the housing 1 as the rotation center. For example, the drive structure 4 can be a motor.

[0056] For example, the garment handling device is a washing machine, and the drive structure 4 can be controlled to operate during specific operating phases of the washing machine, while remaining inactive during other operating phases. It is understood that cleaning of the filter 34 typically accompanies the drainage process to promptly remove dirt with the water. For example, the drive structure 4 can be controlled to operate during drainage at the end of the washing and / or rinsing cycle, allowing dirt to loosen or detach from the filter 34 and be promptly drained with the water. For example, the drive structure 4 can be controlled to operate periodically. For example, it can be activated once every three washes or rinses. For example, the drive structure 4 can be controlled based on a clogging detection signal of the filter 34. For example, when clogging of the filter 34 is detected, the drive structure 4 is activated, and during operation, the drain pump 6 is activated to drain the garment handling device. For example, the clogging detection signal of the filter 34 can be a current signal from the circulation pump 7 or a pressure difference signal across the filter 34. Taking the current signal of the circulation pump 7 as the blockage detection signal of the filter screen 34 as an example, if the filter screen 34 is blocked, the water flow cannot pass through the filter screen 34 to enter the second chamber 17, the circulation pump 7 has no load, and the current signal of the circulation pump 7 is small; if the filter screen 34 is not blocked, the water flow can pass through the filter screen 34 to enter the second chamber 17, the circulation pump 7 has a load, and the current signal of the circulation pump 7 is large.

[0057] This embodiment of the present disclosure uses a two-stage filtration system, a fine filtration structure 3 and a coarse filtration structure 2, to filter the drainage from the washing drum. On the one hand, the coarse filtration structure 2 prevents large debris from clogging the impeller of the water pump, and on the other hand, the fine filtration structure 3 improves the cleanliness of the circulating water after filtration, reducing the pollution of clothes when the circulating water is reused. At the same time, the drive structure 4 drives the cleaning structure 10 to rotate, thereby loosening and removing dirt from the filter screen 34, thus cleaning the filter screen 34.

[0058] like Figure 6 and Figure 7 As shown, the filter screen 34 is at least a portion of the shape formed by the side and top surfaces of a frustum. Exemplarily, the filter screen 34 may be substantially the shape of the side surface of a frustum, or a union of the side and top surfaces of a frustum. Exemplarily, the filter screen 34 may also be a portion of the side surface shape of a frustum, or a portion of that union, but this would reduce the area of ​​the filter screen 34. It is understood that the bottom surface of the frustum and the cross-section of the housing 1 substantially coincide, and the size of the bottom surface of the frustum is slightly smaller than the size of the cross-section of the housing 1 to avoid an excessively large gap between the filter screen 34 and the inner wall of the housing 1. This ensures that water from the first chamber 16, after being filtered by the filter screen 34, enters the second chamber 17, but cannot enter the second chamber 17 through an excessively large gap between the filter screen 34 and the inner wall of the housing 1.

[0059] For a cylindrical filter screen 34, there is a slit between the filter screen 34 and the inner wall of the housing 1, where hair, debris, and other debris can easily get stuck. In contrast, if the filter screen 34 can be essentially the shape of the side surface of a frustum, or a combination of the side and top surfaces of a frustum, there is an angle between the filter screen 34 and the inner wall of the housing 1 instead of a slit. Hair, debris, and other debris are more easily moved away from the angle by the water flow in the first chamber 16 and are less likely to get stuck.

[0060] For example, the top surface of the frustum can be closer to the coarse filter structure than the bottom surface of the frustum, such as... Figure 2 As shown, the frustum generatrix and the inner wall of the shell 1 have an angle rather than a slit. In this way, hair, debris and other debris are not easily stuck between the fine filter structure 3 and the inner wall of the shell 1. Hair, debris and other debris are easily washed away by the drainage, thus keeping the fine filter structure 3 clean.

[0061] For example, such as Figure 2 , Figure 5 , Figure 6 As shown, the cleaning structure 10 includes a cleaning bracket 101 and a scraper 102. The scraper 102 is disposed on the cleaning bracket 101, and the cleaning bracket 101 is connected to the drive structure 4. For example, as shown... Figure 3 , Figure 5 , Figure 6 As shown, one end of the cleaning bracket 101 is fixedly connected to the drive shaft 43 of the drive structure 4, and the other end of the cleaning bracket 101 is provided with a scraper 102, which extends into the frustum of the filter screen 34.

[0062] For example, the scraper 102 is made of a flexible material to avoid damage to the filter 34 when the scraper 102 cleans the filter 34. The scraper 102 interferes with the filter 34. And / or, the scraper 102 engages with the cleaning bracket 101.

[0063] For example, such as Figure 2 , Figure 5 , Figure 6 As shown, the filter screen 34 has the shape of the outer surface of the rotating body, and the shape of the cleaning structure 10 matches the shape of the axial section of the rotation center of the filter screen 34. For example, the filter screen 34 is shaped like a frustum, and the cleaning structure 10 includes two oppositely arranged scrapers 102, such that the shape extending into the interior of the filter screen 34 is an isosceles trapezoid, which matches the shape of the axial section of the rotation center of the filter screen 34.

[0064] For example, in other embodiments, the cleaning structure 10 includes a scraper 102, the filter 34 is shaped like the outer surface of the rotating body, and at least a portion of the outer contour of the scraper 102 matches the shape of the side generatrix of the filter 34.

[0065] For example, the apex angle of the frustum is greater than 0° and less than or equal to 30°. For example, the apex angle of the frustum is greater than 0° and less than or equal to 10°. For example, the apex angle of the frustum is 6°. If the apex angle is too large, the height of the frustum will be too small, which will reduce the area of ​​the filter screen 34; if the apex angle is too small, the gap between the fine filtration structure 3 and the housing 1 will be too small, which will cause debris to accumulate between the filter screen 34 and the inner wall of the housing 1.

[0066] For example, such as Figure 5 As shown, the scraper 102 includes a first scraper arm 102A and a second scraper arm 102B. The extension direction of the first scraper arm 102A is at an angle to the extension direction of the axis of the filter screen 34. The first scraper arm 102A is parallel to the side surface of the filter screen 34, which is shaped like a frustum. The first scraper arm 102A is used to clean the side surface of the filter screen 34, which is shaped like a frustum. The extension direction of the second scraper arm 102B is perpendicular to the extension direction of the axis of the filter screen 34. The second scraper arm 102B is parallel to the top surface of the filter screen 34, which is shaped like a frustum. The second scraper arm 102B is used to clean the top surface of the filter screen 34, which is shaped like a frustum.

[0067] For example, the scraper 102 and the cleaning bracket 101 are integrated.

[0068] For example, the fine filtration structure 3 also includes a support, which includes a first support 31 for supporting the filter screen 34 and a second support 32 disposed on the bottom surface of the frustum. The first support 31 and the second support 32 are connected, and the second support 32 abuts against the housing 1.

[0069] Understandably, the filter 34 is supported on the bracket. The first bracket 31 is substantially matched in shape with the filter 34, forming the skeleton of a frustum. The filter 34 wraps around the surface of the first bracket 31 facing the first cavity 16 or the surface of the first bracket 31 facing the second cavity 17. Exemplarily, the second bracket 32 ​​is disposed on the bottom surface of the frustum, and the size of the second bracket 32 ​​matches the size of the bottom surface of the frustum. The second bracket 32 ​​is snapped into the housing 1 to fix the fine filtration structure 3. Understandably, Figure 2 In this design, the second support 32 divides the second cavity 17 into an internal part and an external part of the frustum. The third interface 13A is located on the external part of the frustum. A water-permeable hole 33 is provided on the second support 32, through which the scraper 102 extends into the interior of the frustum. Understandably, to avoid the water-permeable hole 33 interfering with the operation of the scraper 102, the water-permeable hole 33 on the second support 32 needs to be sufficiently large. Water from the second cavity 17 enters the external part of the frustum through the water-permeable hole 33 on the second support 32 and flows out from the circulating water outlet 13.

[0070] For example, such as Figure 3As shown, the first support 31 includes a first sub-support extending along the generatrix of the frustum and a second sub-support extending along the outer periphery of the circular cross-section of the frustum, such that the first support 31 constitutes the skeleton of the side surface of the frustum. In this case, the curved surface where the first support 31 is located can include the side surface of the frustum. For example, the first support 31 also includes a skeleton constituting the top surface of the frustum. In this case, the curved surface where the first support 31 is located can include both the side surface and the top surface of the frustum.

[0071] For example, the filter 34 is disposed on at least a portion of the first surface of the curved surface where the first support 31 is located. The first surface is the surface that water first contacts as it flows from the first cavity 16 to the second cavity 17. Figure 3 The surface indicated by the middle arrow is the first surface of the first support 31. For example, the filter 34 can be disposed on the entire first surface or on a portion of the first surface. For instance, the filter 34 may be disposed only on the side surface of the frustum and not on the top surface; alternatively, the filter 34 may be disposed on both the side and top surfaces of the frustum. This embodiment illustrates the case where the filter 34 is disposed on both the side and top surfaces of the frustum.

[0072] For example, such as Figure 2 , Figure 5 and Figure 6 As shown, the second support 32 includes a first support plate 321, a second support plate 322, a third support plate 323, and a fourth support plate 324. The second support plate 322 extends radially along the housing 1. The first support plate 321, the third support plate 323, and the fourth support plate 324 are disposed on the second support plate 322. The first support plate 321 is disposed at one end of the second support plate 322 near the axis of the housing 1, the third support plate 323 is disposed at one end of the second support plate 322 away from the axis of the housing 1, and the fourth support plate 324 is disposed between the first support plate 321 and the third support plate 323. The first support plate 321 extends toward the first support 31, and the third support plate 323 and the fourth support plate 324 extend away from the first support 31. The extension length of the third support plate 323 is less than the extension length of the fourth support plate 324. For example, the housing 1 is provided with a positioning platform 15, which is disposed on the inner wall of the housing 1 and extends towards the axis of the housing 1. The third support plate 323 abuts against the surface of the positioning platform 15 that is parallel to the cross-section of the housing 1, and the fourth support plate 324 abuts against the surface of the positioning platform 15 that is parallel to the axis of the housing 1. In one embodiment, when installing the fine filter structure 3, it can be determined that the fine filter structure 3 has been installed in place when the third support plate 323 and the fourth support plate 324 abut against the positioning platform 15.

[0073] For example, the fourth support plate 324 and the positioning stage 15 can be interference-fitted to fix the fine filter structure 3 to the housing 1.

[0074] For example, such as Figure 2 , Figure 6and Figure 7 As shown, the third support plate 323 is an L-shaped plate, and a sealing groove 325 is provided between the third support plate 323 and the fourth support plate 324. A first sealing element 9 is provided between the second bracket 32 ​​and the inner wall of the housing 1, and the first sealing element 9 is installed in the sealing groove 325. A part of the first sealing element 9 is located in the sealing groove 325 to fix the first sealing element 9, and the other part of the first sealing element 9 is sealed to the housing 1 to fix the fine filter structure 3 and the housing 1.

[0075] Understandably, the first seal 9 is located at the junction of the support of the fine filter structure and the inner wall of the housing 1. As mentioned earlier, the first support 31 of the fine filter structure 3 is the carrier of the filter screen 34, which divides the housing 1's accommodating cavity into a first cavity 16 and a second cavity 17. Therefore, a seal is required between the fine filter structure 3 and the inner wall of the housing 1 at the point closest to the inner wall to allow filtered water to enter the circulation chamber. For example, as... Figure 3 As shown, a first sealing element 9 can be provided at the gap between the fine filter structure 3 and the inner wall of the housing 1, where it is closest to the inner wall of the housing 1, to form a sealed connection between the fine filter structure 3 and the inner wall of the housing 1. For example, the first sub-support extending along the generatrix of the frustum in the first bracket 31 extends to a position close to the inner wall of the housing 1. The position of the first sub-support close to the inner wall of the housing 1 connects to the first support plate 321 of the second bracket 32. The sealing groove 325 is located at the point where the fine filter structure 3 is closest to the inner wall of the housing 1, and the first sealing element 9 is provided in the sealing groove 325. This prevents contaminants in the first cavity 16 from entering the second cavity 17 through the gap between the fine filter structure 3 and the housing 1, improving the cleanliness of the water in the second cavity 17. For example, as... Figure 4 As shown, the first sealing element 9 is a sealing ring or a sealing strip.

[0076] For example, such as Figure 2 As shown, the housing 1 has two ends. The end of the housing 1 located in the second cavity 17 (or the end closer to the second cavity 17) is called the first end, and the first end has a first through hole. The end of the housing 1 located in the first cavity 16 (or the end closer to the first cavity 16) is called the second end, and the second end has a second through hole. For example, the drive structure 4 is fixed to the first through hole, and the handle 5 is fixed to the second through hole.

[0077] For example, such as Figure 6 As shown, the drive structure 4 includes a drive motor 41 and a drive shaft 43, as... Figure 2As shown, the housing 1 has a first through hole at the first end of the second cavity 17. The drive motor 41 is fixed outside the first end, and the drive shaft 43 passes through the first through hole and is fixedly connected to the cleaning bracket 101. This achieves isolation between the drive motor 41 and the water-containing chamber. The outer shell of the drive structure 4 is engaged at the first through hole, so that at least part of the drive structure 4 is located outside the housing 1.

[0078] For example, the drive structure 4 also includes a second seal 42. A bushing is provided on the drive shaft of the drive motor 41, and the second seal 42 is sleeved on the bushing. The second seal 42 is disposed within the first through hole and between the bushing and the inner wall of the housing 1. Specifically, the second seal 42 can be an oil seal to prevent water from entering the drive motor 41.

[0079] A coarse filter structure 2 is installed in the first chamber 16. The coarse filter structure 2 is used to perform the first filtration on the water flowing into the receiving chamber through the first interface 11A to filter out large debris. A fine filter structure 3 is used to perform the second filtration on the water flowing back to the washing drum from the third interface 13A to filter out small debris and improve the cleanliness of the circulating water.

[0080] like Figure 4 and Figure 7 As shown, the circulating filtration device also includes a connecting frame 8; the connecting frame 8 includes a connecting strip 81 extending axially along the housing 1, a coarse filtration structure 2 is disposed on the connecting strip 81, and a fine filtration structure 3 is disposed at the end of the connecting strip 81 away from the coarse filtration structure 2.

[0081] In this embodiment, the connecting frame 8 connects the fine filter structure 3 and the coarse filter structure 2. When the filter structure needs to be cleaned, the user can pull out at least part of the connecting frame 8 and the fine filter structure 3 and the coarse filter structure 2 on it through the handle 5 connected to the connecting frame 8, so as to clean the coarse filter structure 2, or to clean the coarse filter structure 2 and the fine filter structure 3.

[0082] For example, the connecting frame 8, the fine filter structure 3, and the coarse filter structure 2 can be integrally molded.

[0083] For example, by connecting the fine filter structure 3 and the coarse filter structure 2 together via the connecting bracket 8, the fine filter structure 3 and the coarse filter structure 2 can be assembled and disassembled simultaneously. Figure 1 As shown, a limiting groove 14 extending axially along the inner wall of the housing 1 is provided, and the connecting strip 81 is located in the limiting groove 14. The length of the limiting groove 14 is parallel to the axial direction of the housing 1, and the limiting groove 14 is recessed towards the outside of the housing 1. The limiting groove 14 restricts the circumferential rotation of the connecting strip 81, preventing displacement of the fine filter structure 3 and the coarse filter structure 2 when impacted by water flow. Furthermore, in this embodiment, two connecting strips 81 are provided, and two limiting grooves 14 are provided corresponding to the connecting strips 81.

[0084] For example, such as Figure 2 , Figure 3 As shown, the circulating filtration device includes a handle 5; the handle 5 is fixed to the outside of the second end of the housing 1 and is detachably connected to the second end of the housing 1. The handle 5 is fixedly connected to a connecting bracket 8; the second end of the housing 1 is the end of the housing 1 located in the first cavity 16. Thus, the connecting bracket 8 can be pulled at least partially out of the receiving cavity by means of the handle 5 to clean the coarse filter structure 2 alone or both the fine filter structure 3 and the coarse filter structure 2. For example, the handle 5 and the end of the housing 1 away from the fine filter structure 3 are threaded together. The second end of the housing 1 is provided with a second through hole, which is closed when the handle 5 is installed on the housing 11.

[0085] For example, the connecting frame 8 also includes an end plate 82 located at the second through hole and disposed on the connecting strip 81. The end plate 82 is engaged with the handle 5 so that the connecting frame 8 can be pulled out of the receiving cavity when the user pulls the handle 5.

[0086] For example, the specific way the end plate 82 and the handle 5 are connected is as follows: Figure 2 , Figure 8 and Figure 9 As shown, the end plate 82 has an end groove 821 in the middle, and the end groove 821 has spaced-apart retaining plates 822. There is a certain distance between the retaining plates 822 and the bottom of the end groove 821. The handle 5 has a retaining claw 51 corresponding to the retaining plate 822. During installation, the retaining claw 51 is first inserted into the gap between the retaining plates 822, and then the handle 5 is rotated so that the retaining claw 51 is located between the retaining plate 822 and the bottom of the end groove 821.

[0087] In another embodiment, an annular plate may be provided in the end groove 821, the annular plate being located between the bottom of the end groove 821 and the clamping plate 822, the annular plate and the clamping plate 822 restricting the claw 51 on the handle 5.

[0088] For example, a sealing gasket is provided between the end plate 82 and the housing 1.

[0089] For example, when cleaning is required, the user can simultaneously remove the fine filter structure 3 and the coarse filter structure 2 using the handle 5, and clean them at the same time. After cleaning, the fine filter structure 3 and the coarse filter structure 2 are inserted into the housing 1, and the position is adjusted so that the connecting strip 81 is turned into the limiting groove 14 and the second bracket 32 ​​is engaged with the positioning platform 15. The handle 5 and the housing 1 are then threaded together to complete the installation. The installation and disassembly process is convenient and efficient.

[0090] The coarse filter structure 2 is described below as an example.

[0091] Furthermore, in this embodiment, the coarse filter structure 2 includes a first plate 21 and a second plate 22 arranged coaxially and parallel to each other. The second plate 22 is close to the fine filter structure 3. The first plate 21 and the second plate 22 have the same diameter. The first plate 21, the second plate 22, and the connecting strip 81 are connected. The first plate 21 and the second plate 22 are connected by a spacer plate 23.

[0092] Furthermore, the second plate 22 also includes a baffle column 24, which has a hollow structure. Both the first plate 21 and the second plate 22 are annular plates with a central hole. The baffle column 24 is located in the central hole of the first plate 21, and its outer wall is connected to the first plate 21. A gap is provided between the first plate 21 and the baffle column 24. The second plate 22 has a first through hole to facilitate water flow.

[0093] Furthermore, the coarse filter structure 2 also includes a baffle rod 25, one end of which is connected to the end plate 82, and the other end of which extends into the baffle column 24. Flow can exit from the first interface 11A through the hollow position of the baffle column 24, the gap between the baffle column 24 and the first plate 21, and the first through hole on the second plate 22. The baffle rod 25 acts as a barrier against large debris, preventing it from flowing directly away from the baffle column 24. In this embodiment, the structural features of the coarse filter structure 2 filter large debris, eliminating the need for a filter screen 34 in the coarse filter structure, thus enhancing the flow and smoothness of drainage and improving drainage efficiency.

[0094] This embodiment also provides a garment processing device, which is equipped with a circulating filtration device as described above.

[0095] The drain inlet 11 in the circulating filter device and the drain outlet of the washing drum are connected by a pipeline. The drain outlet 12 in the circulating filter device is connected to the external environment. The circulating water outlet 13 in the circulating filter device is connected to the washing drum by a pipeline.

[0096] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0097] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0098] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A circulating filtration device, applied in clothing processing equipment, characterized in that, include: The housing has a receiving cavity, and the housing is provided with a drain inlet, a drain outlet, and a circulating water outlet. The drain inlet is connected to the drain port of the clothing processing equipment, the drain outlet is connected to the external environment, and the circulating water outlet is connected to the washing drum of the clothing processing equipment. A fine filtration structure is disposed in the receiving cavity of the housing; the fine filtration structure includes a filter screen; the filter screen divides the receiving cavity into a first cavity and a second cavity, the interface between the drain inlet and the receiving cavity and the interface between the drain outlet and the receiving cavity are located in the first cavity, and the interface between the circulating water outlet and the receiving cavity is located in the second cavity, and the first cavity and the second cavity are connected through the filter screen; A cleaning structure is provided in the second cavity, and the cleaning structure is used to clean the filter screen; A driving structure is provided, which is connected to the cleaning structure and is used to drive the cleaning structure to rotate.

2. The circulating filtration device according to claim 1, characterized in that, The cleaning structure includes a cleaning bracket and a scraper, the scraper being disposed on the cleaning bracket, and the cleaning bracket being connected to the drive structure.

3. The circulating filtration device according to claim 2, characterized in that, The scraper is made of a flexible material. The scraper bar interferes with the filter screen, and / or the scraper bar engages with the cleaning bracket.

4. A circulating filtration device according to claim 3, characterized in that, The shape of the filter screen is the shape of the outer surface of the rotating body, and the shape of the cleaning structure matches the shape of the axial section passing through the rotation center of the filter screen.

5. A circulating filtration device according to claim 3, characterized in that, The shape of the filter screen is the shape of the outer surface of the rotating body, and the shape of at least a portion of the outer contour of the scraper matches the shape of the side generatrix of the filter screen.

6. A circulating filtration device according to any one of claims 1-5, characterized in that, The shape of the filter screen is at least a part of the shape formed by the side and top surfaces of a frustum.

7. A circulating filtration device according to claim 6, characterized in that, The apex angle of the frustum is greater than 0° and less than or equal to 30°.

8. A circulating filtration device according to claim 6, characterized in that, The circulating filtration device also includes a coarse filtration structure; The top surface of the frustum is closer to the coarse filter structure than the bottom surface of the frustum; The coarse filter structure is located in the first cavity.

9. A circulating filtration device according to claim 6, characterized in that, The fine filtration structure also includes a support frame, which includes a first support frame for supporting the filter screen and a second support frame disposed on the bottom surface of the frustum. The first support frame and the second support frame are connected, and the second support frame is provided with water-permeable holes.

10. A circulating filtration device according to claim 9, characterized in that, A first seal is provided between the second bracket and the inner wall of the housing.

11. A circulating filtration device according to claim 8, characterized in that, The circulating filtration device further includes a connecting frame; the connecting frame includes a connecting strip extending axially along the housing. The coarse filter structure and the connecting strip are fixedly connected, and the fine filter structure and the end of the connecting strip away from the coarse filter structure are connected.

12. A circulating filtration device according to claim 1, characterized in that, The cleaning structure includes a cleaning bracket; The housing has a first through hole at the first end of the second cavity. The drive structure includes a drive motor and a drive shaft. The drive motor is fixed to the outside of the first end, and the drive shaft passes through the first through hole and is fixedly connected to the cleaning bracket.

13. A garment processing device, characterized in that, It is provided with a circulating filtration device as described in any one of claims 1 to 12.

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