Filter system for dishwasher and dishwasher

Abstract

The present application discloses a filter system of a dishwasher and a dishwasher, comprising: a drainage pipe and a rotating blade assembly; wherein the drainage pipe is connected to the drainage port of the dishwasher; the rotating blade assembly is arranged in the drainage pipe, and the rotating blade assembly comprises a first rotating blade group and a second rotating blade group which are coaxial and stacked in the axial direction, the first rotating blade group is provided with a first connecting structure, the second rotating blade group is provided with a second connecting structure, and the first connecting structure and the second connecting structure are detachably connected; the rotating blade assembly comprises a first working mode and a second working mode, in the first working mode, the first connecting structure and the second connecting structure are connected to each other so that the first rotating blade group and the second rotating blade group rotate together; in the second working mode, the first connecting structure and the second connecting structure are separated from each other so that the first rotating blade group and the second rotating blade group rotate separately. The filter system of the dishwasher of the present application can adjust the working mode of the rotating blade assembly.

Description

Technical Field

[0001] The present application relates to the technical field of dishwashers, and in particular to a filter system for a dishwasher and the dishwasher. Background Art

[0002] As people's living standards improve, dishwashers, as the second largest home appliance that frees hands after washing machines, have the potential to become one of the must-have kitchen appliances in every kitchen in the future and a new growth point for the kitchen appliance industry.

[0003] In the related art, in order to prevent debris from clogging the drainage pipe, a filter is set to prevent oversized debris from entering the drainage pipe. This setting not only affects drainage efficiency, but also requires users to manually handle the debris on the filter, which brings inconvenience to users. Summary of the Invention

[0004] The present application provides a filter system for a dishwasher and a dishwasher, so as to solve the problems of low drainage efficiency and inability to automatically clean dishwashers in the prior art.

[0005] In order to solve the above technical problems, the present application provides a filtration system for a dishwasher, comprising: a drainage pipe and a rotating blade assembly; wherein the drainage pipe is connected to the drain outlet of the dishwasher; the rotating blade assembly is arranged in the drainage pipe, and the rotating blade assembly includes a first rotating blade group and a second rotating blade group that are coaxial and stacked in the axial direction, the first rotating blade group is provided with a first connecting structure, and the second rotating blade group is provided with a second connecting structure, and the first connecting structure and the second connecting structure are detachably connected; the rotating blade assembly includes a first working mode and a second working mode, in the first working mode, the first connecting structure and the second connecting structure are connected to each other so that the first rotating blade group and the second rotating blade group rotate together; in the second working mode, the first connecting structure and the second connecting structure are separated from each other so that the first rotating blade group and the second rotating blade group rotate separately.

[0006] In order to solve the above technical problems, the present application provides a dishwasher, including the above-mentioned dishwasher filtering system.

[0007] The present application provides a detachably connected first rotating blade assembly and a second rotating blade assembly in a drainage pipe, and can change the matching mode of the rotating blade assembly by adjusting the connection state of the first rotating blade assembly and the second rotating blade assembly, thereby realizing multiple functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic cross-sectional view of an embodiment of a filter system for a dishwasher provided by the present application;

[0009] Figure 2 yes Figure 1A schematic side view of the structure of the middle filter assembly;

[0010] Figure 3 yes Figure 1 A bottom view of the structure of the first rotating blade assembly;

[0011] Figure 4 yes Figure 1 A schematic top view of the structure of the second rotating blade assembly;

[0012] Figure 5 This is a structural diagram of an embodiment of a first connection structure provided by the present application;

[0013] Figure 6 It is a structural diagram of an embodiment of a second connection structure provided by the present application;

[0014] Figure 7 1 is a schematic top view of an embodiment of a first connection structure provided in the present application;

[0015] Figure 8 yes Figure 7 A schematic structural diagram of a cross section of the second base along the AA direction;

[0016] Figure 9 yes Figure 7 Another structural diagram of the cross section of the second base along the AA direction

[0017] Figure 10 yes Figure 1 A schematic diagram of a combination of the first rotating blade group and the second rotating blade group in the first working mode;

[0018] Figure 11 yes Figure 1 A schematic diagram of a combination of the first rotating blade group and the second rotating blade group in the second working mode;

[0019] Figure 12 yes Figure 2 A schematic diagram of the side structure of the middle bracket;

[0020] Figure 13 yes Figure 12 Schematic diagram of the cross-sectional structure of the middle bracket along the BB direction;

[0021] Figure 14 This is a structural diagram of an embodiment of a dishwasher provided by the present application;

[0022] Figure 15 yes Figure 14 Schematic diagram of the cross-sectional structure of the dishwasher along the CC direction. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0024] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0026] See also Figure 1 , Figure 1 It is a cross-sectional structural diagram of an embodiment of a filter system of a dishwasher provided in the present application.

[0027] The filtration system 10 of the dishwasher 100 may include a drain pipe 11, a rotating blade assembly 12, and a filter assembly 13. The drain pipe 11 is connected to the drain outlet of the dishwasher, the rotating blade assembly 12 is disposed within the drain pipe 11, and the filter assembly 13 is disposed at the drain outlet and within the drain pipe 11.

[0028] The drain outlet of the dishwasher is, for example, provided at the bottom of the inner tank 20 of the dishwasher. The inner tank 20 is formed with a washing chamber 21, and the washing water carrying the residue in the washing chamber 21 enters the drainage pipe 11 through the drain outlet under the action of gravity. The shape of the drain outlet can be circular, rectangular, polygonal or irregular, and this application does not impose any restrictions on this. The area of ​​the drain outlet can be determined according to the volume of the washing chamber 21. For example, a washing chamber 21 with a large volume may produce more washing water and residue during the washing of dishes, so the area of ​​the drain outlet is also correspondingly larger, so that the washing water and residue can be quickly discharged from the washing chamber 21. The washing water and residue are discharged into the drainage pipe 11, and the rotating knife assembly 12 rotates to break up the residue or promote the washing water and residue to be discharged from the drainage pipe 11.

[0029] The drainage pipe 11 is also connected to the water outlet, and the washing water and residue are discharged from the drainage pipe 11 through the water outlet.

[0030] See also Figure 2 , Figure 2 yes Figure 1 The filter assembly 13 includes a filter plate 131 and a filter cup 132 . The filter plate 131 is formed with a feed hole 133 . The filter cup 132 is connected to the washing chamber 21 through the feed hole 133 .

[0031] The filter plate 131 is positioned at the drain outlet. For example, the filter plate 131 is embedded in the drain outlet. Alternatively, the filter plate 131 can be secured to the outer wall of the dishwasher's inner container 20 by gluing, screwing, welding, or any combination thereof. The orthographic projection of the filter plate 131 on the drain outlet covers the drain outlet. This allows larger debris to enter the filter cup 132 through the discharge hole 133, where it is broken up by the rotating blade assembly 12 before being discharged from the drain pipe 11.

[0032] Filter plate 131 and filter cup 132 are formed with, for example, multiple filter holes (not shown), enabling them to separate wash water and debris. Wash water filtered by filter plate 131 or filter cup 132 can enter a circulation pipe (not shown) for recycling. Debris, under the influence of the wash water flow, is collected in filter cup 132 through discharge hole 133.

[0033] Optionally, the filter plate 131 may be tilted or recessed toward the discharge hole 133 so that the residue is more efficiently collected in the filter cup 132 .

[0034] Furthermore, the rotating blade assembly 12 is disposed within the filter cup 132. The rotating blade assembly 12 is disposed at one end of the filter cup 132 away from the filter plate 131 and at the bottom of the drain pipe 11. The rotating blade assembly 12 rotates to break up the residue collected in the filter cup 132 or to discharge the wash water and the broken up residue in the drain pipe 11.

[0035] Joint Reference Figure 1 、 Figure 3 and Figure 4 , Figure 3 yes Figure 1 A bottom view of the structure of the first rotating blade assembly; Figure 4 yes Figure 1 In this embodiment, the rotating blade assembly 12 includes a first rotating blade assembly 121 and a second rotating blade assembly 122 that are coaxial and stacked in the axial direction. Figure 1 The first rotating blade assembly 121 is provided with a first connecting structure 123, as shown. Figure 3 The second rotating blade assembly 122 is provided with a second connecting structure 124, as shown Figure 4 The first connection structure 123 and the second connection structure 124 can be detachably connected.

[0036] The rotating blade assembly 12 includes a first operating mode and a second operating mode. In the first operating mode, the first connecting structure 123 and the second connecting structure 124 are connected to each other, so that the relative positions of the first rotating blade group 121 and the second rotating blade group 122 are fixed, so that the first rotating blade group 121 and the second rotating blade group 122 can rotate together. In the second operating mode, the first connecting structure 123 and the second connecting structure 124 are separated from each other, so that the first rotating blade group 121 and the second rotating blade group 122 are separated, so that the first rotating blade group 121 and the second rotating blade group 122 can rotate separately.

[0037] The first connecting structure 123 and the second connecting structure 124 can be connected and disconnected using a lifting drive mechanism. A lifting drive mechanism is provided at the rotation axis of the first or second rotating blade assembly 121, 122, allowing one rotating blade assembly to move closer to or further away from the other. Alternatively, the first connecting structure 123 and the second connecting structure 124 can be connected and disconnected by adjusting their relative rotational directions. Specifically, the first connecting structure 123 rotates relative to the second connecting structure 124 in a first direction, gradually approaching the second connecting structure 124. When the first connecting structure 123 rotates to a position where it overlaps with the second connecting structure 124 in the axial direction, the first connecting structure 123 and the second connecting structure 124 engage to connect. The first connecting structure 123 rotates relative to the second connecting structure 124 in a second direction, moving away from the second connecting structure 124 to separate. The first and second directions are opposite. For example, the first direction may be clockwise and the second direction may be counterclockwise, or the first direction may be counterclockwise and the second direction may be clockwise.

[0038] See also Figure 5-Figure 9 , Figure 5 This is a structural diagram of an embodiment of a first connection structure provided by the present application; Figure 6 It is a structural diagram of an embodiment of a second connection structure provided by the present application; Figure 7 1 is a schematic top view of an embodiment of a first connection structure provided in the present application; Figure 8 yes Figure 7 A schematic structural diagram of a cross section of the second base along the AA direction; Figure 9 yes Figure 7Alternatively, the first connecting structure 123 may be a stopper provided on one end face of the first base 1211 close to the second base 1221, such as Figure 7 The second connecting structure 124 may be specifically provided on the second base 1221 close to the first base 1211 of the end surface of the limiting groove, such as Figure 8 As shown. Of course, the first connecting mechanism 123 can also be a limiting groove and the second connecting mechanism 124 can be a limiting block. This embodiment is described using the first connecting mechanism 123 as a limiting block and the second connecting mechanism 124 as a limiting groove. The number and position of the limiting grooves and limiting blocks in the schematic diagram are for illustration only and do not limit the number and position of the limiting grooves and limiting blocks. In actual application, they can be adjusted according to actual needs.

[0039] The number of limiting grooves can be one or more. When the number of limiting grooves is multiple, the multiple limiting grooves can be evenly spaced around the first output shaft 1251 with the first output shaft 1251 as the axis. Optionally, the limiting groove can be an arc-shaped groove, the sidewalls of the limiting groove are curved walls, and the axis of the sidewalls of the limiting groove are all the first output shaft 1251. Accordingly, the shape, number and size of the limiting block are adapted to the limiting groove, and the position of the limiting block on the first base 1211 corresponds to the limiting groove. In this way, when the rotating blade group switches from the second mode to the first mode, when the first rotating blade assembly 121 rotates in the first direction relative to the second rotating blade assembly 122, the limiting block rotates around the first output shaft 1251, thereby achieving connection with the limiting groove while the limiting block rotates, and the direction of the force applied by the first rotating blade assembly 121 to the second rotating blade assembly 122 through the limiting block is the same as its movement direction, which can reduce the transmission loss between the first base and the second base.

[0040] The bottom wall of the limiting groove extends from the surface of the second base 1221 toward one end of the first base 1221 in the first direction and in the thickness direction of the second base 1221. Optionally, the bottom wall of the limiting groove is an arc-shaped surface to adapt to the movement trajectory of the limiting block. In this way, when the rotating blade assembly 12 switches from the second mode to the first mode, when the first rotating blade assembly 121 rotates relative to the second rotating blade assembly 122 in the first direction, the limiting block spirally descends relative to the second base 1221. The movement trajectory of the limiting block matches the curvature of the bottom wall of the limiting groove, reducing friction and obstruction when the limiting block enters the limiting groove, allowing the limiting block to smoothly enter the limiting groove and realize the connection between the first rotating blade assembly 121 and the second rotating blade assembly 122. When the rotating blade assembly 12 switches from the first mode to the second mode, similarly, the limiting block can smoothly exit the limiting groove and realize the separation of the first rotating blade assembly 121 and the second rotating blade assembly 122.

[0041] The first rotating blade assembly 121 rotates in a first direction relative to the second rotating blade assembly 122, that is, the limiting block rotates in the first direction relative to the limiting groove, and the limiting block gradually approaches the limiting groove and is embedded and clamped in the limiting groove, thereby achieving mutual connection between the limiting block and the limiting groove. The first rotating blade assembly 121 rotates in a second direction relative to the second rotating blade assembly 122, that is, the limiting block rotates in the second direction relative to the limiting groove, and the limiting block gradually moves away from the limiting groove, thereby achieving separation between the limiting block and the limiting groove.

[0042] The length of the orthographic projection of the limiting groove in the thickness direction of the second base 1221 in the first direction may be equal to the length of the opening of the limiting groove on the surface of the second base 1221, such as Figure 8 may be equal to or greater than the length of the opening of the limiting groove on the surface of the second base 1221, as shown; Figure 9 This makes the connection between the limiting block and the limiting groove more stable, thereby enabling more efficient drainage in the first mode.

[0043] In this embodiment, the connection and separation relationship between the first connection structure 123 and the second connection structure 124 is adjusted to switch the rotating blade assembly 12 between a first operating mode and a second operating mode, thereby enabling the rotating blade assembly 12 to perform different functions in the drainage pipe 11. The first operating mode can be used to promote the rapid discharge of washing water and residue in the drainage pipe 11, while the second operating mode can be used to break up larger residue in the drainage pipe 11.

[0044] See also Figure 10 , Figure 10 yes Figure 1 The arrow in the figure indicates the first direction. It can be understood that the first direction can also be counterclockwise, and this application does not limit this.

[0045] Specifically, in the first working mode, the relative positions of the first rotating blade group 121 and the second rotating blade group 122 are fixed, so the first rotating blade group 121 and the second rotating blade group 122 can rotate together in the first direction at a first speed, and can provide stable centrifugal force for the washing water and residue in the drainage pipe 11, making it easier for the washing water and residue to be discharged from the drainage pipe 11.

[0046] See also Figure 11 , Figure 11 yes Figure 1Schematic diagram of the combination of the first rotating blade group and the second rotating blade group in the second working mode. In the second working mode, the first rotating blade group 121 and the second rotating blade group 122 can rotate separately. For example, the first rotating blade group 121 and the second rotating blade group 122 can rotate at different speeds, or the first rotating blade group 121 and the second rotating blade group 122 rotate in opposite directions. When the first rotating blade group 121 and the second rotating blade group 122 both rotate at the second speed, and the first rotating blade group 121 rotates in the second direction and the second rotating blade group 122 rotates in the first direction, the vortices generated by each other can be offset. Larger residues will not be quickly centrifuged out, but will be retained in the filter cup 132 and repeatedly cut by the first rotating blade group 121 and the second rotating blade group 122, so that the residues can be fully broken up. The broken up residues are conducive to being discharged from the drainage pipe 11 without clogging the drainage pipe 11.

[0047] Continue reading Figure 1 and Figure 2 In this embodiment, the rotating blade assembly 12 may include a driver 125, which may be disposed at the bottom of the drainage pipe 11. Of course, the driver 125 may also be disposed outside the drainage pipe 11 to isolate the driver 125 from water and improve the safety of the driver 125. The driver 125 connects the first rotating blade group 121 and the second rotating blade group 122, providing power for the rotation of the first rotating blade group 121 and the second rotating blade group 122, so that the first rotating blade group 121 and the second rotating blade group 122 can rotate at a first speed or a second speed in a first direction or a second direction.

[0048] The driver 125 may include a first output shaft 1251, a second output shaft 1252, and a motor 1253. The first output shaft 1251 is inserted into the second output shaft 1252. One end of the first output shaft 1251 is connected to the motor 1253, and the other end is connected to the first rotating blade group 121. One end of the second output shaft 1252 is connected to the motor 1253, and the other end is connected to the second rotating blade group 122. The rotation of the first output shaft 1251 drives the first rotating blade group 121 to rotate; the rotation of the second output shaft 1252 drives the second rotating blade group 122 to rotate. In this way, the first rotating blade group 121 and the second rotating blade group 122 can be coaxial and stacked in the axial direction, and the first connecting structure 123 and the second connecting structure 124 can be connected and separated by adjusting the rotation direction of the first connecting structure 123 relative to the second connecting structure 124.

[0049] The number of the driver 125 may be one. The first rotating blade group 121 and the second rotating blade group 122 are driven by the same driver 125 .

[0050] The number of drivers 125 can also be two, wherein a first driver (not shown) is connected to the first rotating blade group 121, and a second driver (not shown) is connected to the second rotating blade group 122, respectively controlling the rotation of the first rotating blade group 121 and the second rotating blade group 122. In a first mode, the first driver and the second driver drive the first rotating blade group 121 and the second rotating blade group 122 to rotate in the same direction. Alternatively, the first driver and the second driver can also drive the first rotating blade group 121 and the second rotating blade group 122 to rotate at the same speed at the same speed, so that the centrifugal force exerted on the washing water and the crushed residue is more stable and more efficiently discharged from the drainage pipe 11. In a second mode, the first driver or the second driver changes the direction of rotation, so that the first driver and the second driver drive the first rotating blade group 121 and the second rotating blade group 122 to rotate in opposite directions to crush the residue in the drainage pipe 11. When there are two drivers 125, the first rotating blade group 121 may not be provided with the first connecting structure 123, and the second rotating blade group 122 may not be provided with the second connecting structure 124. The switching between the first working mode and the second working mode is achieved by adjusting the rotation direction of the first driver or the second driver.

[0051] Specifically, the first rotating blade assembly 121 may include a first base 1211 and a plurality of first blades 1212. The first base 1211 may be, for example, a hollow cylinder, with the plurality of first blades 1212 evenly arranged on the outer peripheral wall of the first base 1211, thereby enhancing the stability of the first blades 1212. The plurality of first blades 1212 have the same shape and size, thereby improving the stability of the rotation of the rotating blade assembly 12 and reducing the manufacturing cost of the rotating blade assembly 12. The first base 1211 is connected to the end of the first output shaft 1251 opposite the motor 1253, and the second base 1221 is connected to the end of the second output shaft 1252 opposite the motor 1253. When the motor 1253 is in operation, the first output shaft 1251 rotates, driving the first base 1211 to rotate, thereby rotating the first rotating blade assembly 121. The second output shaft 1252 also rotates, driving the first base 1211 to rotate, thereby rotating the second rotating blade assembly 122. This ensures that the first blades 1212 are more stable during rotation.

[0052] The second rotating blade assembly 122 may include a second base 1221 and a plurality of second blades 1222. The second base 1221 may be, for example, a hollow cylinder, and the plurality of second blades 1222 may be evenly arranged on the outer peripheral wall of the second base 1221. The plurality of second blades 1222 may have the same shape and size, thereby improving the operational stability of the rotating blade assembly 12 and reducing the manufacturing cost of the rotating blade assembly 12.

[0053] The first connecting structure 123 can be disposed on an end surface of the first base 1211 close to the second base 1221, and the second connecting structure 124 can be disposed on an end surface of the second base 1221 close to the first base 1211. The first connecting structure 123 and the second connecting structure 124 are disposed opposite each other, such that in a first operating mode, the first connecting structure 123 and the second connecting structure 124 are connected to each other, and in a second operating mode, the first connecting structure 123 and the second connecting structure 124 are separated from each other.

[0054] The shape and number of the second blade 1222 can be the same as the shape and number of the first blade 1212, so that during the rotation of the first rotating blade group 121 and the second rotating blade group 122, the first blade 1212 and the second blade 1222 can not interfere with each other, so that the rotating knife assembly 12 is more stable during operation.

[0055] The first blade 1212 can be mounted at an angle on the first base 1211, and the second blade 1222 can be mounted at an angle on the second base 1221. This allows the first blade 1212 and the second blade 1222 to not only perform cutting functions but also increase their contact area with the wash water. Rotating the blade assembly 12 in the first mode can quickly discharge the wash water and crushed debris into the drain pipe 11.

[0056] Optionally, the first blade 1212 and the second blade 1222 can be arc-shaped blades, which are bent in the first direction, thereby increasing the force on the washing water. The rotating blade assembly 12 can achieve efficient drainage in the first mode.

[0057] Furthermore, in the first working mode, the first blade 1212 corresponds to the second blade 1222 one by one, and the projections of the first blade 1212 and the second blade 1222 in the axial direction at least partially overlap, as shown in FIG. Figure 5 As shown, the combination of a first blade 1212 and a second blade 1222 can function as a single large blade, such as in a water pump. This arrangement reduces the loss between the vortices generated by the first and second rotating blade assemblies 121, 122, thereby enabling the rotating blade assembly 12 to provide greater centrifugal force for the wash water and debris, allowing the wash water and debris to be discharged more efficiently from the drain pipe 11.

[0058] Optionally, the rotating knife assembly 12 further includes a bracket 126. Figure 12-13 , Figure 12 yes Figure 2 A schematic diagram of the side structure of the middle bracket; Figure 13 yes Figure 12A schematic diagram of the cross-sectional structure of the middle bracket along the BB direction. The bracket is positioned between the second rotating blade assembly 122 and the driver 125. The first and second output shafts 1251, 1252 extend through the bracket 126. The inner sidewall of the bracket 126 extends downward toward the second output shaft 1252 to form a groove 1261. Residue is collected in the groove 1261. In the second operating mode, the residue is fully contacted with the first and second rotating blade assemblies 121, 122, breaking it up and facilitating its discharge.

[0059] In this embodiment, the switching between the first working mode and the second working mode of the rotating blade assembly 12 can be achieved by adjusting the separation and connection states of the first connecting structure 123 and the second connecting structure 124 to realize different functions. As a result, in the first working mode, the first rotating blade group 121 and the second rotating blade group 122 are relatively fixed in position when the first connecting structure 123 and the second connecting structure 124 are connected, and can rotate together, thereby improving the drainage and slag discharge efficiency of the drainage pipe 11. In the second working mode, the first connecting structure 123 and the second connecting structure 124 are separated, so that the first rotating blade group 121 and the second rotating blade group 122 rotate separately, which can fully break up the residue and reduce the volume of the residue, so that the residue is easier to discharge without clogging the drainage pipe 11.

[0060] See also Figure 14-15 , Figure 14 This is a structural diagram of an embodiment of a dishwasher provided by the present application; Figure 15 yes Figure 14 Schematic diagram of the cross-sectional structure of the dishwasher along the CC direction.

[0061] In this embodiment, the dishwasher 100 includes a filter system 10, a housing 30, and an inner container 20. The filter system 10 and the inner container 20 are disposed in the housing 30, and the filter system 10 is disposed on the outer side wall of the bottom of the inner container 20.

[0062] The bottom of the inner container 20 is provided with a drain port (not shown), which is connected to the filter system 10. The inner container 20 forms a washing chamber 21 for accommodating and washing dishes. Washing water and residue in the washing chamber 21 enter the filter system 10 through the drain port.

[0063] The filtration system 10 includes a drain pipe 11, a rotating blade assembly 12, and a filter assembly 13. The drain pipe 11 is connected to the drain outlet of the dishwasher 100, the rotating blade assembly 12 is disposed in the drain pipe 11, and the filter assembly 13 is disposed at the drain outlet and located in the drain pipe 11.

[0064] The filter assembly 13 includes a filter plate 131 and a filter cup 132. The filter plate 131 is formed with a feed hole 133. The filter cup 132 is connected to the feed hole 133. The rotating knife assembly 12 is disposed in the filter cup 132.

[0065] The residue in the washing chamber 21 is collected in the filter cup 132 through the discharge hole 133 , and the rotating knife assembly 12 rotates to break up the residue collected in the filter cup 132 or discharge the washing water and residue in the drainage pipe 11 .

[0066] The rotating blade assembly 12 comprises a first rotating blade assembly 121 and a second rotating blade assembly 122 which are coaxial and stacked in the axial direction. The first rotating blade assembly 121 is provided with a first connecting structure 123, and the second rotating blade assembly 122 is provided with a second connecting structure 124. The first connecting structure 123 and the second connecting structure 124 are detachably connected.

[0067] The rotating blade assembly 12 includes a first operating mode and a second operating mode. In the first operating mode, the first connecting structure 123 and the second connecting structure 124 are connected to each other, so that the relative positions of the first rotating blade group 121 and the second rotating blade group 122 are fixed, so that the first rotating blade group 121 and the second rotating blade group 122 can rotate together. In the second operating mode, the first connecting structure 123 and the second connecting structure 124 are separated from each other, so that the first rotating blade group 121 and the second rotating blade group 122 are separated, so that the first rotating blade group 121 and the second rotating blade group 122 can rotate separately.

[0068] In the first working mode, the first rotating blade group 121 and the second rotating blade group 122 are fixed in relative positions, so the first rotating blade group 121 and the second rotating blade group 122 can rotate together in the first direction at a first speed, thereby providing a stable centrifugal force for the washing water and residue in the drainage pipe 11, making it easier for the washing water and residue to be discharged from the drainage pipe 11.

[0069] In the second working mode, the first connecting structure 123 and the second connecting structure 124 are separated, so that the first rotating blade group 121 and the second rotating blade group 122 rotate separately, which can fully break up the residue and reduce the volume of the residue, so that the residue is easier to discharge without clogging the drainage pipe 11.

[0070] In this embodiment, the dishwasher 100 facilitates drainage and debris removal by rotating the blade assembly 12 in a first operating mode, and breaks up debris to prevent it from clogging the drain pipe 11 in a second operating mode. The rotating blade assembly 12 can perform both functions, eliminating the need for both a drain pump and a debris-crushing motor 1253, thereby reducing the cost of the dishwasher 100.

[0071] The above description is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A filter system for a dishwasher, characterized in that: The filtration system comprises: A drainage pipe connected to the drainage outlet of the dishwasher; A rotating blade assembly is arranged in the drainage pipe, the rotating blade assembly comprises a first rotating blade assembly and a second rotating blade assembly which are coaxial and stacked in the axial direction, the first rotating blade assembly is provided with a first connecting structure, the second rotating blade assembly is provided with a second connecting structure, and the first connecting structure and the second connecting structure are detachably connected; The rotating blade assembly includes a first working mode and a second working mode. In the first working mode, the first connecting structure and the second connecting structure are connected to each other so that the first rotating blade group and the second rotating blade group rotate together; in the second working mode, the first connecting structure and the second connecting structure are separated from each other so that the first rotating blade group and the second rotating blade group rotate separately; A lifting drive mechanism is provided at the rotating shaft of the first rotating blade group or the second rotating blade group, and when the first connecting structure rotates in a first direction relative to the second connecting structure through the lifting drive mechanism, the first connecting structure approaches the second connecting structure, and when the first connecting structure rotates to a position overlapping with the position of the second connecting structure in the axial direction, the first connecting structure and the second connecting structure engage to achieve mutual connection; when the first connecting structure rotates in a second direction relative to the second connecting structure through the lifting drive mechanism, the first connecting structure moves away from the second connecting structure and is separated from the second connecting structure; The first direction is opposite to the second direction.

2. The filtration system according to claim 1, characterized in that: The first connection structure rotates in a first direction relative to the second connection structure to achieve mutual connection, and the first connection structure rotates in a second direction relative to the second connection structure to achieve mutual separation, and the first direction is opposite to the second direction.

3. The filtration system according to claim 1, characterized in that: The first rotating blade group includes a plurality of first blades, and the second rotating blade group includes a plurality of second blades. The first blades correspond to the second blades one by one. In the first working mode, the projections of the first blade and the second blade in the axial direction at least partially overlap.

4. The filtration system according to claim 1, characterized in that: The rotating blade assembly includes a driver connecting the first rotating blade group and the second rotating blade group; In the first working mode, the first rotating blade group and the second rotating blade group are driven to rotate in the same direction; In the second working mode, the first rotating blade set and the second rotating blade set are driven to rotate in opposite directions.

5. The filtration system according to claim 1, characterized in that: The rotating blade assembly includes a driver connecting the first rotating blade group and the second rotating blade group; In the first working mode, driving the first rotating blade set and the second rotating blade set to rotate at a first speed; In the second working mode, the first rotating blade set and the second rotating blade set are driven to rotate at a second speed; the second speed is greater than the first speed.

6. The filtration system according to claim 4 or 5, characterized in that: The driver comprises a first output shaft and a second output shaft, wherein the second output shaft is connected to the second rotating blade set, and the first output shaft penetrates the second output shaft and the second rotating blade set and is connected to the first rotating blade set.

7. The filtration system according to claim 1, characterized in that: The filtration system further comprises a filter screen assembly, which is arranged at the drain outlet and located in the drain pipe.

8. The filtration system according to claim 7, characterized in that: The filter assembly comprises a filter plate and a filter cup. A material discharge hole is formed on the filter plate, and the filter cup is connected to the material discharge hole.

9. The filtration system according to claim 8, characterized in that: The first rotating blade set and the second rotating blade set are arranged in the filter cup.

10. A dishwasher, characterized in that: The dishwasher comprises the filter system according to any one of claims 1-9.

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