CN215227363U - Filtering system of dish washing machine and dish washing machine - Google Patents

Abstract

The application discloses filtration system and dish washer of dish washer includes: a drain pipe and a rotary knife assembly; wherein, the drainage pipeline is communicated with a drainage outlet of the dishwasher; the rotary cutter component is arranged in the drainage pipeline and comprises a first rotary cutter blade group and a second rotary cutter blade group which are coaxial and are arranged in an axial stacking manner, a first connecting structure is arranged on the first rotary cutter blade group, a second connecting structure is arranged on the second rotary cutter blade group, and the first connecting structure and the second connecting structure are in separable connection; the rotating knife assembly comprises a first working mode and a second working mode, and in the first working mode, the first connecting structure and the second connecting structure are connected with each other so that the first rotating blade group and the second rotating blade group can rotate together; in a second operating mode, the first connecting structure and the second connecting structure are separated from each other, so that the first rotating blade set and the second rotating blade set respectively rotate. The filtering system of the dishwasher of the present application can adjust the operation mode of the rotary knife assembly.

Description

Filtering system of dish washing machine and dish washing machine

Technical Field

The application relates to the technical field of dish-washing machines, in particular to a filtering system of a dish-washing machine and the dish-washing machine.

Background

With the improvement of living standard of people, the dish washing machine is used as a second electronic product for freeing hands after the washing machine, and the dish washing machine has the potential to become one of necessary kitchen electricity of each kitchen in the future and becomes a new growth point of the kitchen electricity industry.

In the related art, in order to prevent the residue from blocking the drain pipe, the filter net is provided to prevent the excessive residue from entering the drain pipe. So set up on the one hand and can influence drainage efficiency, on the other hand needs the manual residue on handling the filter screen of user, brings the inconvenience for the user.

SUMMERY OF THE UTILITY MODEL

The application provides a filtration system and dish washer of dish washer to solve among the prior art dish washer drainage inefficiency and can not self-cleaning's problem.

In order to solve the above technical problem, the present application provides a filter system of a dishwasher, comprising: a drain pipe and a rotary knife assembly; wherein, the drainage pipeline is communicated with the drainage outlet of the dishwasher; the rotary cutter component is arranged in the drainage pipeline and comprises a first rotary cutter blade group and a second rotary cutter blade group which are coaxial and are arranged in an axial stacking manner, a first connecting structure is arranged on the first rotary cutter blade group, a second connecting structure is arranged on the second rotary cutter blade group, and the first connecting structure and the second connecting structure are in separable connection; the rotating knife assembly comprises a first working mode and a second working mode, and in the first working mode, the first connecting structure and the second connecting structure are connected with each other so that the first rotating blade group and the second rotating blade group can rotate together; in a second operating mode, the first connecting structure and the second connecting structure are separated from each other, so that the first rotating blade set and the second rotating blade set respectively rotate.

In order to solve the technical problem, the application provides a dishwasher, which comprises the filter system of the dishwasher.

This application can change the cooperation mode of rotating blade subassembly through adjusting first rotating blade subassembly and second rotating blade subassembly of first rotating blade subassembly and second rotating blade subassembly through set up first rotating blade subassembly and the second rotating blade subassembly of separable connection in drainage pipe to realize multiple functions.

Drawings

FIG. 1 is a schematic cross-sectional view of an embodiment of a filter system of a dishwasher provided herein;

FIG. 2 is a schematic side view of the screen assembly of FIG. 1;

FIG. 3 is a schematic bottom view of the first rotating blade set of FIG. 1;

fig. 4 is a schematic top view of the second rotating blade group of fig. 1;

FIG. 5 is a schematic structural diagram of an embodiment of a first connection structure provided herein;

FIG. 6 is a schematic structural diagram of an embodiment of a second connection structure provided herein;

FIG. 7 is a schematic top view of one embodiment of a first connection structure provided herein;

FIG. 8 is a schematic sectional view of the second base of FIG. 7 taken along the line A-A;

FIG. 9 is another schematic cross-sectional view of the second base of FIG. 7 taken along line A-A;

fig. 10 is a schematic view of the combination of the first rotating blade set and the second rotating blade set in fig. 1 in a first operating mode;

fig. 11 is a schematic view of the combination of the first rotating blade set and the second rotating blade set in fig. 1 in a second operating mode;

FIG. 12 is a side view of the bracket of FIG. 2;

FIG. 13 is a schematic cross-sectional view of the bracket of FIG. 12 taken along the line B-B;

FIG. 14 is a schematic structural view of an embodiment of a dishwasher provided herein;

FIG. 15 is a schematic cross-sectional view of the dishwasher of FIG. 14 taken along the direction C-C.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are referred to in the embodiments of the present application, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

Referring to fig. 1, fig. 1 is a schematic cross-sectional view illustrating an embodiment of a filter system of a dishwasher according to the present application.

The filter system 10 of the dishwasher 100 may include a drain line 11, a rotating knife assembly 12, and a strainer assembly 13. The drain pipe 11 is communicated with a drain outlet of the dishwasher, the rotating knife component 12 is arranged in the drain pipe 11, and the filter screen component 13 is arranged in the drain outlet and positioned in the drain pipe 11.

The drain of the dishwasher is arranged at the bottom of the inner container 20 of the dishwasher, for example. The inner container 20 is formed with a washing chamber 21, and washing water carrying residue in the washing chamber 21 is introduced into the drain pipe 11 through the drain port by gravity. The shape of the drain opening may be circular, rectangular, polygonal, or irregular, which is not limited in this application. The area of the drain opening may be determined according to the volume of the washing chamber 21, for example, the washing chamber 21 having a large volume may generate more washing water and residue during the washing of dishes, and thus the area of the drain opening is correspondingly large, so that the washing water and the residue can be rapidly discharged out of the washing chamber 21. The washing water and the residue are discharged into the drain pipe 11, and the rotary knife assembly 12 rotates to break up the residue or facilitate the washing water and the residue to be discharged out of the drain pipe 11.

The water discharge pipeline 11 is also communicated with a water outlet, and the washing water and the residues are discharged out of the water discharge pipeline 11 through the water outlet.

Referring to fig. 2, fig. 2 is a schematic side view of the filter screen assembly of fig. 1. The filter screen assembly 13 includes a filter screen plate 131 and a filter cup 132, the filter screen plate 131 is formed with a discharge hole 133, and the filter cup 132 is communicated with the washing chamber 21 through the discharge hole 133.

The screen plate 131 is provided at the drain port. The screen plate 131 is embedded in the drain opening, for example, and the screen plate 131 can be fixed on the outer wall of the dishwasher liner 20 by one or a combination of gluing, screwing, welding or the like. And the orthographic projection of the filter screen plate 131 on the water outlet covers the water outlet, so that residues with larger volume enter the filter screen cup 132 through the blanking hole 133, are rotated and broken by the rotary knife assembly 12 and then are discharged out of the water discharge pipeline 11.

The sieve plate 131 and the sieve cup 132 are formed with, for example, a plurality of filtering holes (not shown) so that the sieve plate 131 and the sieve cup 132 can separate washing water and residue. The filtered washing water passing through the screen plate 131 or the screen bowl 132 may be introduced into a circulation pipe (not shown) to be recycled. The residue is collected in the strainer cup 132 through the discharging holes 133 by the water current of the washing water.

Alternatively, screen panels 131 may be sloped or concave toward downholes 133 to allow debris to be more efficiently collected in screen cups 132.

Further, the rotary knife assembly 12 is disposed within the strainer cup 132. The rotary knife assembly 12 is disposed at one end of the filter cup 132 far away from the filter screen plate 131, and is disposed at the bottom of the drain pipe 11. The rotary knife assembly 12 rotates to break up the residue collected in the filter cup 132 or discharge the washing water in the drain pipe 11 and the broken residue.

Referring to fig. 1, 3 and 4 together, fig. 3 is a schematic bottom view of the first rotating blade set of fig. 1; fig. 4 is a schematic top view of the second rotating blade group in fig. 1. In this embodiment, the rotary knife assembly 12 includes a first rotary knife blade group 121 and a second rotary knife blade group 122 which are coaxially and axially stacked, as shown in fig. 1. The first rotating blade set 121 is provided with a first connecting structure 123, as shown in fig. 3; the second rotating blade group 122 is provided with a second connecting structure 124, as shown in fig. 4. The first and second connection structures 123 and 124 may be detachably connected.

The rotary knife assembly 12 includes a first mode of operation and a second mode of operation. In the first operation 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, and the first rotating blade group 121 and the second rotating blade group 122 can rotate together. In the second operation 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, and the first rotating blade group 121 and the second rotating blade group 122 can rotate respectively.

The separation and connection of the first connecting structure 123 and the second connecting structure 124 can be realized by a lifting driving mechanism, and the lifting driving mechanism is arranged at the rotating shaft of the first rotating blade group 121 or the second rotating blade group 122, so that one rotating blade group can be close to or far away from the other rotating blade group. This can also be achieved by adjusting the relative rotational direction of the first and second connecting structures 123, 124. Specifically, the first connecting structure 123 rotates relative to the second connecting structure 124 in the first direction, the first connecting structure 123 gradually approaches the second connecting structure 124, and when the first connecting structure 123 rotates to a position overlapping with the position of the second connecting structure 124 in the axial direction, the first connecting structure 123 and the second connecting structure 124 are engaged to achieve mutual connection. The first connecting structure 123 rotates in the second direction relative to the second connecting structure 124, and the first connecting structure 123 is far away from the second connecting structure 124 to achieve mutual separation. Wherein the first direction and the second direction are opposite. For example, the first direction is clockwise and the second direction is counterclockwise; or the first direction is counterclockwise and the second direction is clockwise.

Referring to fig. 5 to 9, fig. 5 is a schematic structural diagram of a first connection structure according to an embodiment of the present disclosure; FIG. 6 is a schematic structural diagram of an embodiment of a second connection structure provided herein; FIG. 7 is a schematic top view of one embodiment of a first connection structure provided herein; FIG. 8 is a schematic sectional view of the second base of FIG. 7 taken along the line A-A; fig. 9 is another structural view of the second base in fig. 7 taken along the a-a direction. Optionally, the first connecting structure 123 may be a limiting block disposed on an end surface of the first base 1211 close to the second base 1221, as shown in fig. 7; the second connecting structure 124 may be a limiting groove disposed on an end surface of the second base 1221 near the first base 1211, as shown in fig. 8. Of course, the first connecting mechanism 123 may be a limiting groove, the second connecting mechanism 124 may be a limiting block, and the embodiment describes that the first connecting mechanism 123 is a limiting block and the second connecting mechanism 124 is a limiting groove. The number and the position of the limiting grooves and the limiting blocks in the schematic diagram are only used as the schematic diagram, the number and the position of the limiting grooves and the limiting blocks are not limited, and the number and the position of the limiting grooves and the limiting blocks can be adjusted according to actual requirements in actual application.

The number of the limiting grooves can be 1 or more. When the number of the limiting grooves is plural, the plurality of limiting grooves may be uniformly spaced around the first output shaft 1251 in the first base 1211 with the first output shaft 1251 as the axis. Optionally, the limiting groove may be an arc-shaped groove, the side wall of the limiting groove is a curved wall, and the axes of the side wall of the limiting groove are both the first output shaft 1251. Accordingly, the stopper is adapted in shape, number and size to the stopper groove, and the stopper corresponds to the stopper groove at the position of the first base 1211. So when the second mode is switched to the first mode in rotating the blade group, when first rotation knife tackle spare 121 rotates towards first direction relative second rotation knife tackle spare 122, the stopper is rotatory around first output shaft 1251 to realize being connected with the spacing groove when the stopper is rotatory, and first rotation knife tackle spare 121 passes through the stopper and rotates the direction of the power of knife tackle spare 122 to the second and be the same with its direction of motion, can reduce the driven loss between first base and the second base.

The bottom wall of the stopper groove extends from the surface of the second base 1221 toward one end of the first base 1221 in the first direction and 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 motion track of the limiting block, so that when the rotating blade group 12 is switched from the second mode to the first mode, and the first rotating blade assembly 121 rotates towards the first direction relative to the second rotating blade assembly 122, the limiting block spirally descends relative to the second base 1221, the motion track of the limiting block is matched with the radian of the bottom wall of the limiting groove, so that friction and obstruction when the limiting block enters the limiting groove are reduced, the limiting block can smoothly enter the limiting groove, and the connection between the first rotating blade assembly 121 and the second rotating blade assembly 122 is realized; when the rotating blade group 12 is switched from the first mode to the second mode, similarly, the limiting block can smoothly exit from the limiting groove, and the first rotating blade assembly 121 and the second rotating blade assembly 122 are separated.

The first rotating blade group 121 rotates towards the first direction relative to the second rotating blade group 122, namely the limiting blocks rotate towards the first direction of the limiting grooves, the limiting blocks gradually approach the limiting grooves and are embedded into the limiting grooves in a clamped mode, and the limiting blocks and the limiting grooves are connected with each other. The first rotating blade group 121 rotates towards the second direction relative to the second rotating blade group 122, that is, the limiting blocks rotate towards the second direction relative to the limiting grooves, the limiting blocks are gradually far away from the limiting grooves, and the limiting blocks can be separated from the limiting grooves.

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, as shown in fig. 8; may be equal to or greater than the length of the opening of the stopper groove on the surface of the second base 1221, as shown in fig. 9. Therefore, the limiting block is connected with the limiting groove more stably, and water can be drained more efficiently in the first mode.

In this embodiment, the first connecting structure 123 and the second connecting structure 124 are connected and disconnected to switch the rotary knife assembly 12 between the first operating mode and the second operating mode, so that the rotary knife assembly 12 can perform different functions in the drain pipeline 11. The first mode of operation may be used to facilitate the rapid draining of wash water and debris in the drain pipe 11 out of the drain pipe 11, and the second mode of operation may be used to break up bulky debris in the drain pipe 11.

Referring to fig. 10, fig. 10 is a schematic view of the first rotating blade set and the second rotating blade set in fig. 1 assembled in the first operating mode. The arrow in the figure indicates a first direction, and it should be understood that the first direction may also be counterclockwise, which is not limited in the present application.

Specifically, in the first operating mode, the first rotating blade set 121 and the second rotating blade set 122 are fixed in relative position, so that the first rotating blade set 121 and the second rotating blade set 122 can rotate together along the first direction at the first speed, and can provide a stable centrifugal force for the washing water and the residues in the drain pipe 11, so that the washing water and the residues are more easily discharged out of the drain pipe 11.

Referring to fig. 11, fig. 11 is a schematic view of the first rotating blade set and the second rotating blade set in fig. 1 assembled in the second operating mode. In the second operation mode, the first rotating blade group 121 and the second rotating blade group 122 may rotate separately, for example, the first rotating blade group 121 and the second rotating blade group 122 may 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 towards the second direction, and the second rotating blade group 122 rotates towards the first direction, the generated vortexes can be mutually offset, so that larger residues cannot be quickly centrifuged out, but are retained in the screen 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 crushed, and the crushed residues are beneficial to discharging the drainage pipeline 11 without blocking the drainage pipeline 11.

With continued reference to fig. 1 and 2, in the present embodiment, the rotating knife assembly 12 may include a driver 125, and the driver 125 may be disposed at the bottom of the drain pipe 11. Of course, the driver 125 may also be disposed outside the drain pipe 11 to isolate the driver 125 from water, thereby improving the safety of the driver 125. The driver 125 is connected to the first rotating blade group 121 and the second rotating blade group 122, and provides 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.

The driver 125 may include first and second output shafts 1251 and 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 first output shaft 1251 rotates to drive the first rotating blade group 121 to rotate; the second output shaft 1252 rotates to rotate the second rotating blade set 122. Therefore, the first rotating blade group 121 and the second rotating blade group 122 can be coaxially and axially stacked, and the first connecting structure 123 and the second connecting structure 124 can be connected and separated by adjusting the rotating direction of the first connecting structure 123 relative to the second connecting structure 124.

The number of drivers 125 may be 1, and the first rotating blade group 121 and the second rotating blade group 122 are driven by the same driver 125.

The number of the drivers 125 may also be 2, wherein a first driver (not shown) is connected to the first rotating blade set 121, and a second driver (not shown) is connected to the second rotating blade set 122, so as to control the rotation of the first rotating blade set 121 and the second rotating blade set 122, respectively. In the first mode, the first driver and the second driver drive the first rotating blade set 121 and the second rotating blade set 122 to rotate in the same direction. Optionally, the first driver and the second driver may also drive the first rotating blade set 121 and the second rotating blade set 122 to rotate at the same speed, so that the centrifugal force applied to the washing water and the broken residues is more stable, and the washing water and the broken residues are more efficiently discharged out of the drainage pipeline 11. In the second mode, the first driver or the second driver changes the rotation direction, so that the first driver and the second driver drive the first rotating blade set 121 and the second rotating blade set 122 to rotate in opposite directions, so as to break up the residue in the water discharge pipeline 11. When the number of the drivers 125 is 2, the first rotating blade set 121 may not be provided with the first connecting structure 123, and the second rotating blade set 122 may not be provided with the second connecting structure 124, and the switching between the first operating mode and the second operating mode is realized by adjusting the rotating direction of the first driver or the second driver.

Specifically, the first rotating blade group 121 may include a first base 1211 and a plurality of first blades 1212. The first base 1211 is, for example, a hollow cylinder, and the plurality of first blades 1212 are uniformly disposed on the outer circumferential wall of the first base 1211, so that the first blades 1212 are more stable. The plurality of first blades 1212 may be identical in shape and size, which may improve stability of rotation of the rotary knife assembly 12 and reduce manufacturing costs of the rotary knife assembly 12. The first base 1211 is connected to an end of the first output shaft 1251 opposite the motor 1253, and the second base 1221 is connected to an end of the second output shaft 1252 opposite the motor 1253. Motor 1253 is operated to rotate first output shaft 1251 and drive first base 1211 to rotate, so as to rotate first rotating blade group 121; and rotating the second output shaft 1252 rotates the first base 1211 to realize the rotation of the second rotating blade group 122. This makes the first blade 1212 more stable during rotation.

The second rotating blade group 122 may include a second base 1221 and a plurality of second blades 1222. The second base 1221 is, for example, a hollow cylinder, and the plurality of second blades 1222 are uniformly disposed on the outer circumferential wall of the second base 1221. The plurality of second blades 1222 are identical in shape and size, which may improve the stability of the operation of the rotary knife assembly 12 and reduce the manufacturing cost of the rotary knife assembly 12.

The first connecting structure 123 may be disposed on an end surface of the first base 1211 close to the second base 1221, and the second connecting structure 124 is disposed on an end surface of the second base 1221 close to the first base 1211, for example. The first connection structure 123 and the second connection structure 124 are disposed opposite to each other such that the first connection structure 123 and the second connection structure 124 are connected to each other in the first operation mode and the first connection structure 123 and the second connection structure 124 are separated from each other in the second operation mode.

The second blades 1222 may have the same shape and number as the first blades 1212, so that the first blades 1212 and the second blades 1222 may not interfere with each other during the rotation of the first rotating blade group 121 and the second rotating blade group 122, and the rotating blade assembly 12 may be more stable during the operation.

The first blade 1212 may be obliquely installed on the first base 1211, and the second blade 1222 may be obliquely installed on the second base 1221, so that the first blade 1212 and the second blade 1222 have a cutting function and simultaneously increase a contact area with the washing water, and the rotating blade assembly 12 may rapidly discharge the washing water and the broken residue out of the drain pipe 11 in the first mode.

Alternatively, the first and second blades 1212 and 1222 may be arc-shaped blades having a curvature in the first direction, thus increasing the force of the washing water, and the rotary blade assembly 12 may achieve efficient drainage in the first mode.

Further, in the first operation mode, the first blade 1212 corresponds to the second blade 1222 one by one, and a projection of the first blade 1212 and the second blade 1222 in the axial direction at least partially coincide with each other, as shown in fig. 5. That is, a first blade 1212 and a second blade 1222 in combination may function as a single large blade in a water pump, for example. With this arrangement, consumption between vortexes generated by the first and second rotating blade groups 121 and 122, respectively, can be reduced, so that the rotating blade assembly 12 can provide a greater centrifugal force for washing water and residues, and the washing water and the residues can be more efficiently discharged out of the drain pipe 11.

Optionally, the rotary knife assembly 12 further includes a bracket 126. Referring to fig. 12-13, fig. 12 is a side view of the bracket of fig. 2; fig. 13 is a schematic sectional view of the bracket of fig. 12 taken along the direction B-B. The bracket is disposed between the second rotating blade group 122 and the driver 125, and the first output shaft 1251 and the second output shaft 1252 are disposed through the bracket 126. The inner side wall of the bracket 126 extends downwards towards the second output shaft 1252 to form a groove 1261, and residues are collected in the groove 1261, so that the residues can be fully contacted with the first rotating blade group 121 and the second rotating blade group 122 and can be smashed and can be discharged conveniently in the second working mode.

In this embodiment, the first and second operating modes of the rotary cutter assembly 12 can be switched by adjusting the separation and connection states of the first and second connecting structures 123 and 124, so as to implement different functions. Therefore, in the first working mode, the positions of the first rotating blade set 121 and the second rotating blade set 122 are relatively fixed when the first connecting structure 123 and the second connecting structure 124 are connected, and the first rotating blade set and the second rotating blade set can rotate together, so that the drainage and slag discharge efficiency of the drainage pipeline 11 is improved. In the second working mode, the first connecting structure 123 and the second connecting structure 124 are separated, so that the first rotating blade set 121 and the second rotating blade set 122 rotate separately, the residue can be sufficiently broken, the volume of the residue is reduced, and the residue is easier to discharge without blocking the drainage pipeline 11.

Referring to fig. 14-15, fig. 14 is a schematic structural view of an embodiment of a dishwasher provided in the present application; FIG. 15 is a schematic cross-sectional view of the dishwasher of FIG. 14 taken along the direction C-C.

In this embodiment, the dishwasher 100 includes a filter system 10, a housing 30, and a liner 20. The filter system 10 and the inner container 20 are disposed in the casing 30, and the filter system 10 is disposed on the outer sidewall of the bottom of the inner container 20.

The bottom of the liner 20 is provided with a water outlet (not shown) for communicating with the filtering system 10. The inner container 20 forms a washing chamber 21 for receiving and washing dishes. The washing water and debris in the washing chamber 21 enter the filter system 10 through the drain opening.

The filtration system 10 includes a drain line 11, a rotating knife assembly 12, and a screen assembly 13. The drain pipe 11 is connected to the drain outlet of the dishwasher 100, the rotary knife assembly 12 is disposed in the drain pipe 11, and the filter screen assembly 13 is disposed in the drain outlet and located in the drain pipe 11.

The filter screen assembly 13 includes a filter screen plate 131 and a filter cup 132, wherein the filter screen plate 131 is formed with a discharge hole 133, and the filter cup 132 is connected to the discharge hole 133. The rotary knife assembly 12 is disposed within the strainer cup 132.

The residue in the washing chamber 21 is collected in the strainer cup 132 through the discharging hole 133, and the rotary blade assembly 12 rotates to break up the residue collected in the strainer cup 132 or discharge the washing water and the residue in the drain pipe 11.

The rotary knife assembly 12 includes a first rotary knife blade group 121 and a second rotary knife blade group 122 which are coaxially and axially stacked. The first rotating blade set 121 is provided with a first connecting structure 123, the second rotating blade set 122 is provided with a second connecting structure 124, and the first connecting structure 123 and the second connecting structure 124 are detachably connected.

The rotary knife assembly 12 includes a first mode of operation and a second mode of operation. In the first operation 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, and the first rotating blade group 121 and the second rotating blade group 122 can rotate together. In the second operation 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, and the first rotating blade group 121 and the second rotating blade group 122 can rotate respectively.

In the first working mode, the first rotating blade set 121 and the second rotating blade set 122 are fixed in relative positions, so that the first rotating blade set 121 and the second rotating blade set 122 can rotate together along the first direction at the first speed, and a stable centrifugal force can be provided for washing water and residues in the drainage pipeline 11, so that the washing water and the residues are easier to drain out of the drainage pipeline 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 set 121 and the second rotating blade set 122 rotate separately, the residue can be sufficiently broken, the volume of the residue is reduced, and the residue is easier to discharge without blocking the drainage pipeline 11.

In this embodiment, the dishwasher 100 implements the function of promoting drainage and slag discharge by the first operating mode of the rotary knife assembly 12, and implements the function of breaking up the residue and preventing the residue from blocking the drain pipe 11 by the second operating mode of the rotary knife assembly 12. The rotary knife assembly 12 can perform two functions without providing a drain pump and a debris motor 1253 at the same time, which can reduce the cost of the dishwasher 100.

The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (10)

1. A filter system of a dishwasher, comprising:

the drainage pipeline is communicated with the drainage outlet of the dishwasher;

the rotating cutter assembly is arranged in the drainage pipeline and comprises a first rotating cutter blade group and a second rotating cutter blade group which are coaxial and are stacked in the axial direction, a first connecting structure is arranged on the first rotating cutter blade group, a second connecting structure is arranged on the second rotating cutter blade group, and the first connecting structure and the second connecting structure are in separable connection;

the rotating knife assembly comprises a first working mode and a second working mode, and in the first working mode, the first connecting structure and the second connecting structure are connected with each other so that the first rotating blade group and the second rotating blade group can 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 set and the second rotating blade set respectively rotate.

2. The filtration system of claim 1, wherein the first connection structure rotates in a first direction relative to the second connection structure to effect interconnection, and the first connection structure rotates in a second direction relative to the second connection structure to effect disconnection, the first direction and the second direction being opposite.

3. The filtration system of claim 1, wherein the first rotating blade set comprises a plurality of first blades, the second rotating blade set comprises a plurality of second blades, the first blades correspond to the second blades one to one, and in the first operating mode, a projection of one of the first blades and one of the second blades in the axial direction at least partially coincide.

4. The filtration system of claim 1, wherein the rotary knife assembly comprises a driver connecting the first rotary blade set and the second rotary blade set; in the first working mode, the first rotating blade group and the second rotating blade group are driven to rotate in the same direction; and in the second working mode, the first rotating blade group and the second rotating blade group are driven to rotate reversely.

5. The filtration system of claim 1, wherein the rotary knife assembly comprises a driver connecting the first rotary blade set and the second rotary blade set; in the first working mode, the first rotating blade set and the second rotating blade set are driven 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 of claim 4 or 5, wherein the driver comprises a first output shaft and a second output shaft, the second output shaft is connected with the second rotating blade set, and the first output shaft is arranged through the second output shaft and the second rotating blade set and connected with the first rotating blade set.

7. The filtration system of claim 1, further comprising a filter screen assembly disposed in the drain opening and positioned within the drain conduit.

8. The filtration system of claim 7, wherein the screen assembly comprises a screen plate having a feed opening formed therein and a screen bowl connected to the feed opening.

9. The filtration system of claim 8, wherein the first and second rotating blade sets are disposed within the screen cup.

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

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