Circulating filtering device and clothes treatment equipment

Abstract

The utility model relates to the technical field of clothes processing equipment. The utility model relates to the technical field of clothing processing equipment, and discloses a circulating filtering device and clothing processing equipment, the circulating filtering device comprises a shell, the shell is provided with a containing cavity, a coarse filtering structure and a fine filtering structure, the coarse filtering structure and the fine filtering structure are located in the containing cavity, and the fine filtering structure comprises a filter screen; the driving structure is connected with the fine filtering structure and is used for driving the fine filtering structure to rotate; the filter screen divides the accommodating cavity into a first cavity and a second cavity; the connector of the drainage inlet and the accommodating cavity, the connector of the drainage outlet and the accommodating cavity and the coarse filtering structure are positioned in the first cavity; the connector of the circulating water outlet and the accommodating cavity is positioned in the second cavity; and the first cavity is communicated with the second cavity through a filter screen. Drainage is subjected to two-stage filtration through the coarse filtration structure and the fine filtration structure, the fine filtration structure is connected with the driving structure, and the driving structure drives the fine filtration structure to rotate, so that dirt on a filter screen of the fine filtration structure is thrown down, and self-cleaning of the filter screen is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to clothes treatment equipment technical field, especially a kind of circulation filtering device and clothes treatment equipment. BACKGROUND

[0002] With the continuous popularity of clothes treatment equipment, the water-saving performance of clothes treatment equipment becomes a new focus. The existing clothes treatment equipment will be recycled to improve the utilization efficiency of washing water, but the sundries in the drainage can cause secondary pollution of clothes, and may also block the drainage passage. SUMMARY

[0003] Therefore, the utility model provides a kind of circulation filtering device and clothes treatment equipment.

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

[0005] In a first aspect, a circulation filtering device is provided, which is applied to clothes treatment equipment,

[0006] The shell has a receiving cavity, and the shell is provided with a drainage inlet, a drainage outlet and a circulating water outlet. The drainage inlet is connected to the drainage port of the clothes treatment equipment. The drainage outlet is in communication with the external environment. The circulating water outlet is in communication with the washing drum of the clothes treatment equipment.

[0007] The coarse filtering structure is arranged in the receiving cavity of the shell.

[0008] The fine filtering structure is arranged in the receiving cavity of the shell. The fine filtering structure includes a filter screen.

[0009] The driving structure is connected to the fine filtering structure, and is used to drive the fine filtering structure to rotate.

[0010] The filter screen separates the receiving cavity into a first cavity and a second cavity. The interface of the drainage inlet, the interface of the drainage outlet and the coarse filtering structure in the receiving cavity are located in the first cavity. The interface of the circulating water outlet in the receiving cavity is located in the second cavity. The first cavity and the second cavity are in communication through the filter screen.

[0011] Illustratively, the shape of the filter screen is at least a part of the shape composed of the side surface shape and the top surface shape of the circular truncated cone.

[0012] Illustratively, the top surface of the circular truncated cone is closer to the coarse filtering structure than the bottom surface of the circular truncated cone.

[0013] Illustratively, the top surface of the circular truncated cone is closer to the coarse filtering structure than the bottom surface of the circular truncated cone.

[0014] The exemplary fine filtering structure further comprises a support, the support comprises a first support for supporting the filter screen and a second support arranged on the bottom surface of the circular truncated cone body, the first support and the second support are connected, and the second support is provided with water permeable holes.

[0015] The exemplary fine filtering structure further comprises a support, the support comprises a first support for supporting the filter screen and a second support arranged on the bottom surface of the circular truncated cone body, the first support and the second support are connected, and the second support is provided with water permeable holes.

[0016] The exemplary fine filtering structure further comprises a support, the support comprises a first support for supporting the filter screen and a second support arranged on the bottom surface of the circular truncated cone body, the first support and the second support are connected, and the second support is provided with water permeable holes.

[0017] The exemplary fine filtering structure further comprises a support, the support comprises a first support for supporting the filter screen and a second support arranged on the bottom surface of the circular truncated cone body, the first support and the second support are connected, and the second support is provided with water permeable holes.

[0018] The exemplary fine filtering structure further comprises a support, the support comprises a first support for supporting the filter screen and a second support arranged on the bottom surface of the circular truncated cone body, the first support and the second support are connected, and the second support is provided with water permeable holes.

[0019] The exemplary fine filtering structure further comprises a support, the support comprises a first support for supporting the filter screen and a second support arranged on the bottom surface of the circular truncated cone body, the first support and the second support are connected, and the second support is provided with water permeable holes.

[0020] The exemplary fine filtering structure further comprises a support, the support comprises a first support for supporting the filter screen and a second support arranged on the bottom surface of the circular truncated cone body, the first support and the second support are connected, and the second support is provided with water permeable holes.

[0021] The exemplary fine filtering structure further comprises a support, the support comprises a first support for supporting the filter screen and a second support arranged on the bottom surface of the circular truncated cone body, the first support and the second support are connected, and the second support is provided with water permeable holes.

[0022] The exemplary fine filtering structure further comprises a support, the support comprises a first support for supporting the filter screen and a second support arranged on the bottom surface of the circular truncated cone body, the first support and the second support are connected, and the second support is provided with water permeable holes.

[0023] The exemplary fine filtering structure further comprises a support, the support comprises a first support for supporting the filter screen and a second support arranged on the bottom surface of the circular truncated cone body, the first support and the second support are connected, and the second support is provided with water permeable holes.

[0024] The exemplary fine filtering structure further comprises a support, the support comprises a first support for supporting the filter screen and a second support arranged on the bottom surface of the circular truncated cone body, the first support and the second support are connected, and the second support is provided with water permeable holes.

[0025] The two-stage filtering of the drainage by the coarse filtering structure and the fine filtering structure prevents large garbage from blocking the impeller of the water pump, improves the cleanliness of the circulating water after filtering, and reduces the pollution of the clothes when the circulating water is reused. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0027] Figure 1 The figure is a structure schematic diagram of the circulating filtering device of one embodiment of the present application.

[0028] Figure 2A The figure is a mounting structure schematic diagram of the fine filtering structure of one embodiment of the present application.

[0029] Figure 2B The figure is another mounting structure schematic diagram of the fine filtering structure of one embodiment of the present application.

[0030] Figure 3 The figure is a cross-sectional structure schematic diagram of the circulating filtering device of one embodiment of the present application.

[0031] Figure 4 The figure is a connection schematic diagram of the coarse filtering structure, the fine filtering structure, the driving structure and the connecting frame of one embodiment of the present application.

[0032] Figure 5 The figure is a connection schematic diagram of the coarse filtering structure and the connecting frame of one embodiment of the present application.

[0033] Figure 6 The figure is another connection schematic diagram of the coarse filtering structure and the connecting frame of one embodiment of the present application.

[0034] Figure 7 The figure is a schematic diagram of the coarse filtering structure of one embodiment of the present application.

[0035] Figure 8 The figure is a schematic diagram of the fine filtering structure of one embodiment of the present application.

[0036] The reference signs in the figures respectively represent:

[0037] 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-Condensate outlet; 16-Slot; 17-First cavity; 18-Second cavity; 2-Coarse filter structure; 21-First plate; 22-Second plate; 23-Spacing plate; 24-Break column; 25-Break rod; 3-Fine filter structure; 31-First support; 32-Second support; 321-Water permeable hole; 322-Ring rib; 33-Connecting rod; 34-Filter screen; 4-Drive structure; 5-Handle; 6-Drain pump; 7-Circulating pump; 8-Connecting frame; 81-Connecting strip; 82-Connecting sleeve; 83-Limiting structure; 84-End plate; 841-End groove; 842-Clamping plate; 9-Sealing strip; 10-Seal.

[0038] 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

[0039] 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.

[0040] 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. The "connection" in this utility model embodiment can be a direct connection or an indirect connection, and does not have the meaning of limiting the protection scope of this utility model.

[0041] 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.

[0042] like Figure 1 , Figure 2A , Figure 2BAs shown, the embodiment of the present disclosure provides a circulating filtering device applied to a clothes processing device, comprising: a shell 1, the shell 1 has a containing cavity, the shell 1 is provided with a drainage inlet 11, a drainage outlet 12 and a circulating water outlet 13. The drainage inlet 11 is connected with a drainage port of the clothes processing device, the drainage outlet 12 is communicated with an external environment, and the circulating water outlet 13 is communicated with a washing drum of the clothes processing device. A coarse filtering structure 2 is arranged in the containing cavity of the shell 1. A fine filtering structure 3 is arranged in the containing cavity of the shell 1; the fine filtering structure 3 comprises a filter screen 34. A driving structure 4 is connected with the fine filtering structure 3, and the driving structure 4 is used for driving the fine filtering structure 3 to rotate. The filter screen 4 separates the containing cavity into a first cavity 17 and a second cavity 18; the interface of the drainage inlet 11 with the containing cavity is a first interface 11A, the interface of the drainage outlet 12 with the containing cavity is a second interface 12A, and the coarse filtering structure 2 is located in the first cavity 17; the interface of the circulating water outlet 13 with the containing cavity is a third interface 13A located in the second cavity 18; and the first cavity 17 and the second cavity 18 are communicated through the filter screen 4.

[0043] Specifically, as shown in Figure 1 、 Figure 2A and Figure 2B , the shell 1 is a cylindrical structure, the shell 1 has a containing cavity, the coarse filtering structure 2 and the fine filtering structure 3 are arranged in the containing cavity of the shell 1, the filter screen 34 of the fine filtering structure 3 separates the containing cavity into the first cavity 17 and the second cavity 18, the first cavity 17 and the second cavity 18 can only be communicated through the filter screen 4, water in the first cavity 17 can only enter the second cavity 18 through the filter screen 34 and cannot bypass the filter screen 34 to enter the second cavity, that is, water in the first cavity 17 enters the second cavity 18 after being filtered through the filter screen 34, and water in the second cavity 18 is cleaner than water in the first cavity 17.

[0044] The shell 1 is provided with a drainage inlet 11, a drainage outlet 12 and a circulating water outlet 13. The interface between the drainage inlet 11 and the containing cavity is a first interface 11A, the interface between the drainage outlet 12 and the containing cavity is a second interface 12A, and the interface between the circulating water outlet 13 and the containing cavity is a third interface 13A. The interface 11A between the drainage inlet 11 and the containing cavity is located in the first cavity 17, the interface 12A between the drainage outlet 12 and the containing cavity is located in the first cavity 17, and the coarse filtering structure 2 is located in the first cavity 17. The interface 13A between the circulating water outlet 13 and the containing cavity is located in the second cavity 18, and the specific location is not limited. For example, the drainage inlet 11 is located on one side of the axis of the shell 1, and the drainage outlet 12 and the circulating water outlet 13 are located on the other side of the axis of the shell 1. For example, the axes of the drainage outlet 12 and the circulating water outlet 13 are parallel to each other. For example, the axis of the drainage outlet 12 is perpendicular to the axis of the drainage inlet 11. For example, the axes of the drainage inlet 11, the drainage outlet 12 and the circulating water outlet 13 are all perpendicular to the axis of the shell 1. For example, the axes of the coarse filtering structure 2, the fine filtering structure 3 and the shell 1 substantially coincide. For example, the interface 11A between the drainage inlet 11 and the containing cavity, the interface 12A between the drainage outlet 12 and the containing cavity, and the interface 13A between the circulating water outlet 13 and the containing cavity are arranged in sequence along the extension direction of the axis of the shell 1. The coarse filtering structure 2 is arranged between the drainage inlet 11 and the drainage outlet 12, that is, the projection of the coarse filtering structure 2 on the axis of the shell is between the projection of the drainage inlet 11 on the axis of the shell and the projection of the drainage outlet 12 on the axis of the shell. The fine filtering structure 3 is arranged in the containing cavity of the shell 1, and the fine filtering structure 3 is arranged between the drainage outlet 12 and the circulating water outlet 13, that is, the projection of the fine filtering structure 3 on the axis of the shell 1 is between the projection of the drainage outlet 12 on the axis of the shell 1 and the projection of the circulating water outlet 13 on the axis of the shell 1.

[0045] The water from the washing drum of the clothes treatment equipment enters the first cavity 17 through the drainage port and the drainage inlet 11 of the clothes treatment equipment, is filtered through the coarse filtering structure 2, and is discharged to the external environment through the drainage outlet 12. The water in the first cavity 17 enters the second cavity 18 through the filter screen, and the water in the second cavity 18 can be circulated back to the washing drum of the clothes treatment equipment. In this way, the water circulated back to the clothes treatment equipment can be cleaner. For example, in order to improve the coarse filtering effect, the coarse filtering structure 2 can be arranged between the drainage inlet 11 and the drainage outlet 12. For example, the coarse filtering structure 2 is at least one structure of a hole plate, a grid, a fence and a comb tooth.

[0046] It is appreciated that the circulating filtering device further comprises a water pump for controlling the water flow. Exemplarily, the circulating filtering device further comprises a drain pump 6 for facilitating the water in the first cavity 17 to be drained from the drain outlet 12, and a circulating pump 7 for facilitating the water in the second cavity 18 to be circulated from the circulating water outlet 13 to the washing drum. It is appreciated that the drain pump 6 is operated when the laundry treating apparatus is draining, and the circulating pump 7 is operated when the laundry treating apparatus is circulating water, which is usually performed during the washing stage, the rinsing stage or both the washing and rinsing stages. When the circulating pump 7 is operated, the drain pump 6 is usually not operated.

[0047] It is appreciated that the filter screen 34 has two surfaces, a first surface located in the first cavity 17 and a second surface located in the second cavity 18. The impurities in the water, such as lint, will adhere to the first surface. When the filter screen 34 is used for a period of time, it may be blocked, resulting in water being unable to enter the second cavity 18 from the first cavity 17. Although the water in the first cavity 17 has a certain flushing effect on the filter screen 34 when it enters the drain outlet 12, the flushing force is insufficient. Therefore, a driving structure 4 for driving the filter screen 34 to rotate to achieve self-cleaning of the filter screen 34 can be provided. When the driving structure 4 drives the filter screen 34 to rotate, the impurities will be thrown off from the filter screen 34, so that they enter the first cavity 17 and are drained to the external environment during the draining. In this way, the impurities adhering to the filter screen 34 can be separated from the filter screen 34, so as to achieve self-cleaning of the filter screen 34.

[0048] Exemplarily, the driving structure 4 is configured to drive the filter screen 34 to rotate around the axis of the housing 1 as the rotation center. Exemplarily, the driving structure 4 can be a motor.

[0049] For example, the laundry treating apparatus is a washing machine. The driving structure 4 can be controlled to work during a specific working stage of the washing machine, and not to work during other working stages. It can be understood that the self-cleaning of the filter screen 34 is usually accompanied by the draining process, so as to timely drain the dirt with the water. For example, the driving structure 4 can be controlled to work when the washing machine is draining after the washing and / or rinsing, so that the dirt is timely drained with the water after being thrown off from the filter screen 34. For example, the driving structure 4 can be controlled to work periodically. For example, the driving structure 4 can be controlled to work once every 3 times of washing or rinsing. For example, the driving structure 4 can be controlled according to the clogging detection signal of the filter screen 34. For example, the driving structure 4 is controlled to work when the clogging of the filter screen 34 is detected, and the draining pump 6 is controlled to work when the driving structure 4 works, so that the laundry treating apparatus drains. For example, the clogging detection signal of the filter screen 34 can be the current signal of the circulating pump 7 or the pressure difference signal before and after the filter screen 34. For example, if the filter screen 34 is clogged, the water flow cannot enter the second cavity 18 through the filter screen 34, the circulating pump 7 has no load, and the current signal of the circulating pump 7 is small. If the filter screen 34 is not clogged, the water flow can enter the second cavity 18 through the filter screen 34, the circulating pump 7 has a load, and the current signal of the circulating pump 7 is large.

[0050] The embodiment of the present disclosure filters the water from the washing drum through the coarse filtering structure 2 and the fine filtering structure 3 in two stages, which prevents large garbage from blocking the impeller of the water pump and improves the cleanliness of the circulating water after filtration, thereby reducing the pollution of the laundry when the circulating water is reused. Meanwhile, the fine filtering structure 3 is connected to the driving structure 4, the driving structure 4 drives the fine filtering structure 3 to rotate, so that the dirt on the filter screen 34 of the fine filtering structure 3 is thrown off, thereby realizing the self-cleaning of the filter screen 34.

[0051] For example, as shown in Figure 2A , Figure 2B and Figure 3 , Figure 4 , the shape of the filter screen 34 is at least part of the shape composed of the side surface shape and the top surface shape of the circular frustum.

[0052] For example, the filter screen 34 can be substantially the shape of the side surface of the circular frustum, or the union of the shape of the side surface and the top surface of the circular frustum. For example, the filter screen 34 can also be part of the shape of the side surface of the circular frustum or part of the union, but this will reduce the area of the filter screen. It can be understood that the bottom surface of the circular frustum and the cross section of the shell 1 substantially coincide, and the size of the bottom surface of the circular frustum is slightly smaller than the size of the cross section of the shell 1, so as to avoid the gap between the filter screen 34 and the inner wall of the shell 1 being too large, thereby ensuring that the water in the first cavity 17 passes through the filter screen 34 and enters the second cavity 18, and cannot enter the second cavity 18 through the gap between the filter screen 34 and the inner wall of the shell 1.

[0053] For the cylindrical filter screen 34, there is a gap between the filter screen 34 and the inner wall of the shell 1, and the hair, debris and other sundries are easily stuck in the gap. In comparison, the filter screen 34 can be substantially in the shape of the side surface of the circular truncated cone, or the union of the shape of the side surface of the circular truncated cone and the shape of the top surface of the circular truncated cone, and there is an included angle between the filter screen 34 and the inner wall of the shell 1 instead of the gap, and the hair, debris and other sundries are more easily carried away by the water flow in the first cavity 17 and are not easily stuck.

[0054] Specifically, the top surface of the circular truncated cone can be closer to the coarse filtering structure than the bottom surface of the circular truncated cone, such as shown in FIG. 1A. Figure 2A Specifically, the top surface of the circular truncated cone can be closer to the coarse filtering structure than the bottom surface of the circular truncated cone, such as shown in FIG. 1A. Figure 2B Specifically, the top surface of the circular truncated cone can be closer to the coarse filtering structure than the bottom surface of the circular truncated cone, such as shown in FIG. 1A. Figure 2A Specifically, the top surface of the circular truncated cone can be closer to the coarse filtering structure than the bottom surface of the circular truncated cone, such as shown in FIG. 1A. Figure 2B Specifically, the top surface of the circular truncated cone can be closer to the coarse filtering structure than the bottom surface of the circular truncated cone, such as shown in FIG. 1A.

[0055] For example, the top angle of the circular truncated cone is greater than 0° and less than or equal to 30°. For example, the top angle of the circular truncated cone is greater than 0° and less than or equal to 15°, and for example, the top angle of the circular truncated cone is 6°. If the top angle is too large, the height of the circular truncated cone is too small, which reduces the area of the filter screen 34; if the top angle is too small, the gap between the first support 31 and the shell 1 is too small, which causes garbage to accumulate between the filter screen and the inner wall of the shell 1.

[0056] For example, the fine filtering structure 3 further comprises a support, which comprises a first support 31 for supporting the filter screen and a second support 32 arranged on the bottom surface of the circular truncated cone, the first support 31 and the second support 32 are connected, and the second support 32 is provided with a water-permeable hole.

[0057] It is understood that the filter screen 34 is supported on the support. The first support 31 substantially matches the shape of the filter screen 34, forming the skeleton of the circular truncated cone, and the filter screen 34 is wrapped around the surface of the first support 31 facing the first cavity 17. Exemplarily, the fine filtering structure 3 further comprises a second support 32 perpendicular to the axial direction of the first support 31, and the second support 32 is connected with the first support 31. In this way, the second support 32 forms the bottom surface of the circular truncated cone, making the fine filtering structure 3 more stable. The second support 32 is arranged at the position of the bottom surface of the circular truncated cone, and the size of the second support 32 matches the size of the bottom surface of the circular truncated cone. The second support 32 has water-permeable holes. It is understood that, in order to avoid the water-permeable holes 321 being blocked by impurities, the water-permeable holes 321 on the second support 32 need to be large enough in this scheme.

[0058] It is understood that, Figure 2A In the first aspect, the second support 32 divides the second cavity 18 into the part inside the circular truncated cone and the part outside the circular truncated cone, and the interface 13A of the circulation water outlet 13 and the containing cavity 1 is located in the part outside the circular truncated cone. The water in the second cavity 18 enters the part inside the circular truncated cone of the second cavity 18 from the part outside the circular truncated cone of the second cavity 18 through the water-permeable holes of the second support 32, and then flows out from the circulation water outlet 13. Figure 2B In the second aspect, the second support 32 divides the first cavity 17 into the part inside the circular truncated cone and the part outside the circular truncated cone, and the interface 12A of the drainage outlet 12 and the containing cavity 1 is located in the part outside the circular truncated cone. The water in the first cavity 17 enters the part inside the circular truncated cone of the first cavity 17 through the water-permeable holes of the second support 32, and then enters the second cavity 18 through the filter screen 34 and flows out from the circulation water outlet 13.

[0059] Exemplarily, as shown in Figure 2A , Figure 2B , Figure 3 and Figure 8 shown, the first support 31 comprises a first sub-support extending along the generatrix direction of the circular truncated cone and a second sub-support extending along the outer periphery of the circular cross section of the circular truncated cone, so that the first support 31 constitutes the skeleton of the side surface of the circular truncated cone. At this time, the curved surface where the first support 31 is located can include the side surface of the circular truncated cone. Exemplarily, the first support 31 further comprises the skeleton of the top surface of the circular truncated cone. At this time, the curved surface where the first support 31 is located can include the side surface of the circular truncated cone and the top surface of the circular truncated cone.

[0060] Exemplarily, the filter screen 34 is arranged on at least part of the first surface of the curved surface where the first support 31 is located, the first surface being the surface first contacted by the water filtered by the coarse filtering structure 3, Figure 2A and Figure 2B the surface indicated by the arrow in the figure is the first surface of the first support 31.

[0061] Exemplarily, as shown in Figure 2AAs shown, the top surface of the circular truncated cone is closer to the coarse filtering structure than the side surface of the circular truncated cone, and the first surface is the outer surface of the side surface and the top surface of the circular truncated cone. Figure 2B As shown, the side surface of the circular truncated cone is closer to the coarse filtering structure than the top surface of the circular truncated cone, and the first surface is the inner surface of the side surface and the top surface of the circular truncated cone.

[0062] As shown, the top surface of the circular truncated cone is closer to the coarse filtering structure than the side surface of the circular truncated cone, and the first surface is the outer surface of the side surface and the top surface of the circular truncated cone. Figure 2A As shown, the top surface of the circular truncated cone is closer to the coarse filtering structure than the side surface of the circular truncated cone, and the first surface is the outer surface of the side surface and the top surface of the circular truncated cone.

[0063] As shown, the top surface of the circular truncated cone is closer to the coarse filtering structure than the side surface of the circular truncated cone, and the first surface is the outer surface of the side surface and the top surface of the circular truncated cone. Figure 2A As shown, the top surface of the circular truncated cone is closer to the coarse filtering structure than the side surface of the circular truncated cone, and the first surface is the outer surface of the side surface and the top surface of the circular truncated cone. Figure 2B As shown, the top surface of the circular truncated cone is closer to the coarse filtering structure than the side surface of the circular truncated cone, and the first surface is the outer surface of the side surface and the top surface of the circular truncated cone. Figure 2A As shown, the top surface of the circular truncated cone is closer to the coarse filtering structure than the side surface of the circular truncated cone, and the first surface is the outer surface of the side surface and the top surface of the circular truncated cone. Figure 2B As shown, the top surface of the circular truncated cone is closer to the coarse filtering structure than the side surface of the circular truncated cone, and the first surface is the outer surface of the side surface and the top surface of the circular truncated cone.

[0064] The specific structure of the second support 32 will be described below.

[0065] For example, the second support 32 is in the shape of a wheel, and the second support 32 comprises an outer ring and crossbars connected to the outer ring. The space between the crossbars is the water-permeable hole 321 of the second support 32. In another embodiment, the second support 32 can also be a circular plate, and the circular plate is provided with water-permeable holes 321.

[0066] For example, the outer edge of the second support 32 is clamped to the inner wall of the shell 1, and only the movement of the second support 32 in the axial direction of the shell 1 is limited. When the circulating filter device comprises the driving structure 4, the driving structure 4 can drive the fine filter structure 3 to rotate around the axis of the shell 1.

[0067] For example, the support of the fine filter structure 3 further comprises a connecting rod 33, one end of the connecting rod 33 is connected to the driving shaft of the driving structure 4, and the driving shaft drives the connecting rod 33 to rotate, thereby driving the entire fine filter structure 3 to rotate.

[0068] For example, as shown in Figure 8 , the specific way of connecting one end of the connecting rod 33 to the driving shaft of the driving structure 4 is that the connecting rod 33 and the driving shaft of the driving structure 4 are connected by spline connection. Specifically, as shown in Figure 8 , one end of the connecting rod 33 connected to the driving structure 4 is provided with a connecting hole recessed in the direction of the coarse filter structure 2, and the hole wall of the connecting hole is provided with a spline. The spline is beneficial to the plug-in disassembly between the fine filter structure 3 and the driving structure 4. The spline in the axial direction of the shell 1 only limits the rotation of the fine filter structure 3 in the circumferential direction of the shell 1, and limits the movement of the fine filter structure 3 in the axial direction. The fine filter structure 3 and the driving structure 4 can be disassembled by moving in the axial direction.

[0069] For the connection mode of the connecting rod 33 and other parts of the support of the fine filter structure 3, for the case of Figure 2A , the fine filter structure 3 needs to comprise the second support 32, and the connecting rod 33 is connected to the second support 32; for the case of Figure 2B , the fine filter structure 3 can or can not comprise the second support 32, and the connecting rod 33 is connected to the part of the top surface of the circular truncated cone formed by the first support 31.

[0070] It can be understood that each part of the support included in the fine filter structure 3 can be connected after being shaped separately, or can be integrally formed.

[0071] For example, as shown in Figure 3 , Figure 4 , Figure 5 , and Figure 6As shown, the circulating filtering device further comprises a connecting frame 8; the connecting frame 8 comprises a connecting strip 81 extending axially along the shell 1 and a connecting sleeve 82 arranged at an end of the connecting strip 81 away from the coarse filtering structure 2. The fine filtering structure 3 and the connecting sleeve 82 are rotationally connected. The coarse filtering structure 2 and the connecting strip 81 are fixedly connected. Exemplarily, two connecting strips 81 are arranged oppositely, and the connecting sleeve 82 is in a ring structure and arranged at an end of the connecting strip 81 away from the coarse filtering structure 2.

[0072] In the embodiment, the connecting frame 8 connects the fine filtering structure 3 and the coarse filtering structure 2. When it is needed to clean the filtering structure, the user can pull out the connecting frame 8 and the fine filtering structure 3 and the coarse filtering structure 2 thereon at least partially through the handle 5 connected with the connecting frame 8, so as to clean the coarse filtering structure 2 or the fine filtering structure 3 and the coarse filtering structure 2.

[0073] Exemplarily, the connecting strip 81, the connecting sleeve 82 and the coarse filtering structure 2 can be integrally formed, and the fine filtering structure 3 is rotationally arranged on the connecting sleeve 82. Exemplarily, the second support 32 of the fine filtering structure 3 is rotationally arranged on the connecting sleeve 82. The driving structure 4 drives the connecting rod 33 of the fine filtering structure 3 to rotate, so as to drive the second support 32, the first support 31 and the filter screen 34 to rotate, and the second support 32 rotates relative to the connecting sleeve 82.

[0074] The user can pull out the connecting frame 8 and the fine filtering structure 3 and the coarse filtering structure 2 thereon at least partially from the accommodating cavity through the handle 5 connected with the connecting frame 8, so as to clean the coarse filtering structure 2 or the fine filtering structure 3 and the coarse filtering structure 2.

[0075] Exemplarily, the rotationally connecting the fine filtering structure 3 and the connecting sleeve 82 comprises that the fine filtering structure 3 further comprises a support for supporting the filter screen 34, the support and the connecting sleeve 82 are rotationally connected, and a sealing wool 9 is arranged between the support and the connecting sleeve 82; and / or, the sealing wool 9 is arranged between the connecting sleeve 82 and the inner wall of the shell 1.

[0076] Exemplarily, the fine filtering structure 3 further comprises the support as described above, the second support 32 in the support and the connecting sleeve 82 are rotationally connected. In order to ensure that the friction between the support and the connecting sleeve 82 is not too large when the support and the connecting sleeve 82 rotate relative to each other while achieving the filtering of garbage and avoiding the gap between the support and the connecting sleeve 82 from allowing water to pass through, the sealing wool 9 can be arranged between the second support 32 and the connecting sleeve 82. In order to achieve the filtering of garbage and avoid the gap between the connecting sleeve 82 and the inner wall of the shell 1 from allowing water to pass through, the sealing wool can be arranged between the connecting sleeve 82 and the inner wall of the shell 1. Exemplarily, as shown in the drawings, the sealing wool 9 is arranged between the second support 32 and the connecting sleeve 82. Figure 3As shown, the second support 32 is provided with a sealing groove, and a sealing strip 9 is arranged in the sealing groove. The sealing strip 9 is located between the second support 32 and the connecting sleeve 82, so as to prevent garbage and sundries from entering the circulating water outlet 13 and polluting the filtered water, and has water permeability and low friction.

[0077] For example, the rotating connection between the fine filtering structure 3 and the connecting sleeve 82 includes that the support of the fine filtering structure 3 is provided with a ring rib 322, the connecting sleeve 82 is provided with a limiting structure 83, and the ring rib 322 and the limiting structure 83 are rotatably connected; or the support of the fine filtering structure 3 is provided with a ring groove, the connecting sleeve 82 is provided with a limiting structure 83, and the ring groove and the limiting structure 83 are rotatably connected. Specifically, as shown in Figure 5 、 Figure 6 and Figure 8 shown, the second support 32 of the fine filtering structure 3 is provided with a ring rib 322, the limiting structure 83 is two oppositely arranged limiting plates, and the ring rib 322 is located between the two limiting plates. The limiting structure 83 is circumferentially provided with a plurality of limiting plates along the axis of the connecting sleeve 82, and is uniformly distributed. Further, the length, height and slope of the two limiting plates can be different, so as to facilitate the disassembly and installation of the second support 32. In another embodiment, the second support 32 can be provided with a ring groove, and the limiting structure 83 is a limiting plate which is inserted into the ring groove.

[0078] For example, as shown in Figure 3 shown, the shell 1 has two ends, one end of the shell 1 located in the second cavity 18 (or the end closer to the second cavity 18) is called the first end, and the first end is provided with a first through hole. One end of the shell 1 located in the first cavity 17 (or the end closer to the first cavity 17) is called the second end, and the second end is provided with a second through hole. For example, the driving structure 4 is fixed in the first through hole, and the handle 5 is fixed in the second through hole.

[0079] For example, the driving structure 4 includes a driving motor and a driving shaft, the driving motor is fixed outside the first end, and the driving shaft is arranged through the first through hole and fixedly connected with the support. In this way, the driving motor 4 and the water-containing cavity can be isolated. The shell of the driving structure 4 is clamped at the first through hole, so that at least part of the driving structure 4 is located outside the shell 1.

[0080] For example, the driving structure 4 further includes a sealing member 10. The driving motor is connected with the shell 1 close to the fine filtering structure 3, and the driving shaft of the driving structure 4 penetrates the first through hole on the first end face of the shell 1 close to the fine filtering structure 3 and is connected with the fine filtering structure 3. For example, the driving shaft is connected with the connecting rod 33 of the fine filtering structure 3. The driving shaft of the driving motor is provided with a shaft sleeve, the sealing member 10 is sleeved on the shaft sleeve, and is arranged between the shaft sleeve and the inner wall of the shell 1. Specifically, the sealing member 10 can be an oil seal arranged between the shaft sleeve and the shell 1 to prevent water from entering the driving motor.

[0081] For example, the circulating filtering device comprises a handle 5; the handle 5 is fixed outside the second end of the shell 1 and detachably connected with the second end; the handle 5 is fixedly connected with the connecting frame 8; the second end of the shell 1 is the end of the shell located in the first cavity 17. Thus, the connecting frame 8 can be pulled out of the accommodating cavity at least partially through the handle to clean the coarse filtering structure 2 or both the coarse filtering structure 2 and the fine filtering structure 3. For example, the handle 5 and the end of the shell 1 away from the fine filtering structure 3 are threadedly connected. The second end of the shell 1 is provided with a second through hole, which is closed when the handle 5 is installed on the shell 1.

[0082] For example, the connecting frame 8 further comprises an end plate 84 located at the second through hole and arranged on the connecting strip 81; the end plate 84 and the handle 5 are clamped to bring the connecting frame 8 out of the accommodating cavity when the user pulls the handle 5.

[0083] For example, the specific manner in which the end plate 84 and the handle 5 are clamped is as shown in Figure 5 , Figure 6 and Figure 7 The middle part of the end plate 84 is provided with an end slot 841, and the end slot 841 is provided with clamping plates 842 arranged at intervals; the clamping plates 842 and the slot bottom of the end slot 841 have a certain distance. The handle 5 is provided with protrusions corresponding to the clamping plates 842; when installed, the protrusions are first placed in the interval between the clamping plates 842, and then the handle 5 is rotated to make the protrusions located between the clamping plates 842 and the slot bottom of the end slot 841.

[0084] In another embodiment, a ring plate can be arranged in the end slot 841, between the slot bottom of the end slot 841 and the clamping plates 842, and the ring plate and the clamping plates 842 limit the protrusions on the handle 5.

[0085] The connection manner of the connecting frame 8 and the shell 1 will be described below.

[0086] The inner wall of the shell 1 is provided with a limiting slot 14 extending in the axial direction of the shell 1, and the connecting strip 81 is located in the limiting slot 14;

[0087] Alternatively, the inner wall of the shell 1 is provided with an annular slot 16 coaxial with the shell 1, and the connecting sleeve 82 and the annular slot 16 are inserted;

[0088] Alternatively, the inner wall of the shell 1 is provided with a limiting slot 14 extending in the axial direction of the shell 1, and the connecting strip 81 is located in the limiting slot 14; and the inner wall of the shell 1 is provided with an annular slot 16 coaxial with the shell 1, and the connecting sleeve 82 and the annular slot 16 are inserted.

[0089] For example, the connecting frame 8 is provided with a connecting sleeve 82, and the connecting sleeve 82 is inserted into the second end of the shell 1. Figure 1 and Figure 3As shown, the housing 1 is provided with a limiting groove 14 extending along the axis direction of the housing 1, and the connecting strip 81 is located in the limiting groove 14. The limiting groove 14 is recessed to the outside of the housing 1, and the limiting groove 14 is provided to ensure that the connecting frame 8 does not rotate with the rotation of the fine filtering structure 3 when the driving structure 4 drives the fine filtering structure 3 to rotate. Further, corresponding to the connecting strip 81, the limiting groove 14 is provided with two limiting grooves. As shown in the figure, Figure 3 As shown, the inner wall of the housing 1 is provided with a slot 16, and the slot 16 is an annular groove located upstream of the circulating water outlet 13; the connecting sleeve 82 is inserted into the slot 16. Specifically, as shown in the figure, Figure 3 As shown, the opening of the slot 16 faces one side of the handle 5, and one end of the connecting sleeve 82 is inserted into the slot 16 to limit the installation position of the connecting sleeve 82.

[0090] For example, when cleaning is needed, the user can take out the fine filtering structure 3 and the coarse filtering structure 2 at the same time through the handle 5, and clean the fine filtering structure 3 and the coarse filtering structure 2 at the same time; after cleaning is completed, the fine filtering structure 3 and the coarse filtering 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, the connecting sleeve 82 is inserted into the slot 16, the connecting rod 33 is inserted into the driving shaft, and the handle 5 is screwed with the housing 1 to complete the installation. The installation and disassembly process is convenient and efficient.

[0091] The coarse filtering structure 2 will be described below.

[0092] Further, in this embodiment, the coarse filtering structure 2 includes a first plate 21 and a second plate 22 arranged coaxially and in parallel, the second plate 22 is close to the fine filtering structure 3, the first plate 21 and the second plate 22 have the same diameter, and 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 spacing plate 23.

[0093] Further, the second end plate 22 further includes a turbulence column 24, and the turbulence column 24 is a hollow structure. The first plate 21 and the second plate 22 are both annular plates with a central hole, the turbulence column 24 is located in the central hole of the first plate 21, the outer wall of the turbulence column 24 is connected with the first plate 21, and a gap is provided between the first plate 21 and the turbulence column 24. The hollow structure of the turbulence column 24, and the first plate 22 is provided with a first through hole to facilitate water flow.

[0094] Further, the coarse filtering structure 2 further comprises a spoiler rod 25, one end of the spoiler rod 25 is connected with the end plate 84, and the other end of the spoiler rod 25 extends into the spoiler column 24. Water can flow out from the water inlet 11 through the hollow position of the spoiler column 24, the gap between the spoiler column 24 and the first plate 21, and the first through hole on the second plate 22. The spoiler rod 25 plays a blocking role on large garbage, avoiding the large garbage directly flowing away from the spoiler column 24. In the embodiment, the large garbage is filtered through the structural characteristics of the coarse filtering structure 2, and a filter screen does not need to be arranged on the coarse filtering structure, so that the flow and smoothness of the water drainage are enhanced, and the water drainage efficiency is improved.

[0095] As shown in the drawings, Figure 1 The shell 1 is further provided with a condensate water outlet 15. The condensate water outlet 15 is located upstream of the coarse filtering structure 2, and further, the condensate water outlet 15 and the water inlet 11 are located on the same circumference of the shell 1.

[0096] The embodiment also provides a laundry treating apparatus, which is provided with the circulating filtering device as described above.

[0097] The water inlet 11 in the circulating filtering device and the water outlet of the washing drum are connected through a pipeline, the water outlet 12 in the circulating filtering device is communicated with the external environment, and the circulating water outlet 13 in the circulating filtering device is communicated with the washing drum through a pipeline.

[0098] In the present application, the terms "first" and "second" are used only for the purpose of description, and should not be understood as indicating or implying relative importance. The term "a plurality of" means two or more, unless otherwise explicitly limited.

[0099] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. The specification and examples given are considered exemplary only, and the scope of the application is not to be considered limited by such examples. The application is intended to cover any variations, uses or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. The specification and examples given are considered exemplary only, and the scope of the application is not to be considered limited by such examples.

[0100] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A circulating filter device applied to a laundry treating apparatus, characterized in that, The application relates to a circulating filter device for a clothes treatment equipment. The circulating filter device comprises a shell, a coarse filter structure and a fine filter structure. The shell has a containing cavity, and a water drainage inlet, a water drainage outlet and a circulating water outlet are arranged on the shell. The water drainage inlet is connected with a water drainage port of the clothes treatment equipment. The water drainage outlet is connected with an external environment. The circulating water outlet is connected with a washing drum of the clothes treatment equipment. The coarse filter structure is arranged in the containing cavity of the shell. The fine filter structure is arranged in the containing cavity of the shell. The fine filter structure comprises a filter screen. A driving structure is connected with the fine filter structure and is used for driving the fine filter structure to rotate. The filter screen divides the containing cavity into a first cavity and a second cavity. The water drainage inlet, the interface between the water drainage outlet and the containing cavity and the coarse filter structure are located in the first cavity. The interface between the circulating water outlet and the containing cavity is located in the second cavity. The first cavity and the second cavity are connected through the filter screen.

2. The circulating filter device according to claim 1, wherein The shape of the filter screen is at least a part of the shape composed of the side surface shape and the top surface shape of a circular truncated cone.

3. The circulating filter device according to claim 2, wherein The top angle of the circular truncated cone is greater than 0° and less than or equal to 30°.

4. The circulating filter device according to claim 2, wherein 8. A recirculation filter device according to claim 7, wherein The top surface of the circular truncated cone is closer to the coarse filter structure than the bottom surface of the circular truncated cone.

5. The circulating filter device according to claim 2, wherein The fine filter structure further comprises a support, the support comprises a first support for supporting the filter screen and a second support arranged on the bottom surface of the circular truncated cone, the first support and the second support are connected, and the second support is provided with water-permeable holes.

9. A recirculation filter device according to claim 7, wherein, 6. The circulating filter device according to claim 5, wherein Sealing wool is arranged between the first support and the inner wall of the shell, and / or sealing wool is arranged between the second support and the inner wall of the shell.

7. The circulating filter device according to claim 1, wherein The circulating filter device further comprises a connecting frame, the connecting frame comprises a connecting strip extending along the shell in the axial direction and a connecting sleeve arranged at one end of the connecting strip away from the coarse filter structure. The coarse filter structure is fixedly connected with the connecting strip, and the fine filter structure is rotationally connected with the connecting sleeve. The rotationally connecting the fine filter structure with the connecting sleeve comprises: The fine filter structure further comprises a support for supporting the filter screen, the support is rotationally connected with the connecting sleeve, and sealing wool is arranged between the support and the connecting sleeve. And / or, sealing wool is arranged between the connecting sleeve and the inner wall of the shell. The rotationally connecting the fine filter structure with the connecting sleeve comprises: The fine filtering structure further comprises a support for supporting the filter screen, the support comprises a ring rib, the connecting sleeve is provided with a limiting structure, and the ring rib and the limiting structure are rotationally connected; or the support is provided with a ring groove, the connecting sleeve is provided with a limiting structure, and the ring groove and the limiting structure are rotationally connected.

10. The circulating filtering device according to claim 7, wherein, An inner wall of the shell is provided with a limiting groove extending in an axial direction of the shell, and the connecting strip is located in the limiting groove; And / or, An inner wall of the shell is provided with an annular groove coaxial with the shell, and the connecting sleeve and the annular groove are inserted.

11. A recirculating filter according to claim 1 wherein, The fine filtering structure further comprises a support for supporting the filter screen, the shell is provided with a first through hole at a first end of the second cavity, the driving structure comprises a driving motor and a driving shaft, the driving motor is fixed outside the first end, the driving shaft is arranged through the first through hole and is fixedly connected with the support.

12. The recirculating filter of claim 1, wherein, The circulating filtering device comprises a handle, the handle is fixed outside a second end of the shell and is detachably connected with the second end, the handle is fixedly connected with the connecting frame, and the second end of the shell is an end of the shell located in the first cavity.

13. The circulating filtering device according to claim 1, wherein, The circulating filtering device further comprises a drainage pump for driving water to flow out of a drainage outlet and a circulating pump for driving water to flow out of a circulating water outlet. 14.A laundry treating apparatus, characterized by, A circulating filtering device as claimed in any one of claims 1 to 13 is arranged thereon.

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