CN114521856A - 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

Dishwasher filter system and dishwasher

technical field

The present application relates to the technical field of dishwashers, and in particular, to a filtration system of a dishwasher and a dishwasher.

Background technique

With the improvement of people's living standards, dishwashers are the second home appliance product that frees hands after washing machines. In the future, dishwashers have the potential to become one of the must-have kitchen appliances in every kitchen and become a new growth point in the kitchen appliance industry. .

In the related art, in order to prevent debris from clogging the drainage pipeline, a filter screen is provided to prevent excessive debris from entering the drainage pipeline. On the one hand, such a setting will affect the drainage efficiency, and on the other hand, the user is required to manually dispose of the residue on the filter net, which brings inconvenience to the user.

SUMMARY OF THE INVENTION

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

In order to solve the above technical problems, the present application provides a filtration system for a dishwasher, comprising: a drainage pipe and a rotary knife assembly; wherein the drainage pipe is communicated with the drainage port of the dishwasher; the rotary knife assembly is arranged in the drainage pipe , the rotary knife assembly includes a first rotary blade group and a second rotary blade group that are coaxially and stacked in the axial direction, the first rotary blade group is provided with a first connection structure, and the second rotary blade group is provided with a second connection structure structure, the first connecting structure and the second connecting structure can be connected separately; the rotary knife 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 working mode and the second working mode are A rotating blade group and a 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 respectively.

In order to solve the above-mentioned technical problem, the present application provides a dishwasher, including the above-mentioned filter system of the dishwasher.

In the present application, the first rotating blade assembly and the second rotating blade assembly are detachably connected in the drainage pipe, so that the matching mode of the rotating blade assembly can be changed by adjusting the connection state of the first rotating blade assembly and the second rotating blade assembly, thereby Realize multiple functions.

Description of drawings

1 is a schematic cross-sectional structural diagram of an embodiment of a filter system for a dishwasher provided by the present application;

Fig. 2 is the side view structure schematic diagram of filter screen assembly in Fig. 1;

Fig. 3 is the bottom view structure schematic diagram of the first rotating blade group in Fig. 1;

Fig. 4 is the top-view structure schematic diagram of the second rotating blade group in Fig. 1;

5 is a schematic structural diagram of an embodiment of the first connection structure provided by the present application;

6 is a schematic structural diagram of an embodiment of the second connection structure provided by the present application;

7 is a schematic top-view structural diagram of an embodiment of the first connection structure provided by the present application;

Fig. 8 is a cross-sectional view of the second base in Fig. 7 along the A-A direction;

FIG. 9 is another structural schematic diagram of the cross-section of the second base in the direction A-A in FIG. 7

Fig. 10 is the combined schematic diagram of the first rotating blade group and the second rotating blade group in the first working mode in Fig. 1;

Fig. 11 is the combined schematic diagram of the first rotating blade group and the second rotating blade group in the second working mode in Fig. 1;

Fig. 12 is the side view structure schematic diagram of the bracket in Fig. 2;

FIG. 13 is a schematic cross-sectional structure diagram of the bracket in FIG. 12 along the B-B direction;

14 is a schematic structural diagram of an embodiment of the dishwasher provided by the present application;

FIG. 15 is a schematic cross-sectional structural diagram of the dishwasher in the direction C-C of FIG. 14 .

Detailed ways

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. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

It should be noted that if there are directional indications (such as up, down, left, right, front, back, etc.) involved in the embodiments of the present application, the directional indications are only used to explain a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly.

In addition, if there are descriptions related to "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for the purpose of description, and should not be construed as indicating or implying Its relative importance or implicitly indicates the number of technical features indicated. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection claimed in this application.

Please refer to FIG. 1 . FIG. 1 is a schematic cross-sectional structural diagram of an embodiment of a filter system for a dishwasher provided by the present application.

The filter system 10 of the dishwasher 100 may include a drain pipe 11 , a rotary knife assembly 12 and a filter screen assembly 13 . The drain pipe 11 is connected to the drain port of the dishwasher, the rotary knife assembly 12 is disposed in the drain pipe 11 , and the filter mesh assembly 13 is disposed in the drain port and located in the drain pipe 11 .

The drain port of the dishwasher is provided at the bottom of the inner container 20 of the dishwasher, for example. The inner tank 20 is formed with a washing cavity 21, and the washing water carrying residues in the washing cavity 21 enters the drainage pipe 11 through the drainage port under the action of gravity. The shape of the water outlet can be circular, rectangular, polygonal or irregular, which is not limited in this application. The area of the drain port can be determined according to the volume of the washing chamber 21. For example, if the washing chamber 21 has a large volume, more washing water and residues may be generated in the process of washing dishes, so the area of the drain port is correspondingly larger, so that the washing water and The residue can be quickly 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 is rotated to break up the residue or promote the washing water and the residue to be discharged from the drain pipe 11 .

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

Please refer to FIG. 2 , which is a schematic side view of the structure of the filter screen assembly in FIG. 1 . The filter screen assembly 13 includes a screen screen plate 131 and a screen screen cup 132 . The screen screen plate 131 is formed with a feeding hole 133 , and the screen screen cup 132 communicates with the washing cavity 21 through the feeding hole 133 .

The screen plate 131 is disposed at the water outlet. For example, the filter screen plate 131 is embedded in the drain port, and the filter screen plate 131 can also be fixed on the outer wall of the dishwasher liner 20 by one of the methods of gluing, screwing, welding or the like or a combination thereof. And the orthographic projection of the filter plate 131 on the drain covers the drain, so the larger residues enter the filter cup 132 through the feeding hole 133 , and are rotated and broken by the rotary knife assembly 12 before being discharged out of the drain 11 .

For example, a plurality of filter holes (not shown) are formed on the filter plate 131 and the filter cup 132, so that the filter plate 131 and the filter cup 132 can separate washing water and residues. The washing water filtered by the filter screen plate 131 or the filter screen cup 132 can enter a circulation pipe (not shown) for recycling. The residue is collected in the screen cup 132 through the feeding hole 133 under the action of the water flow of the washing water.

Optionally, the screen plate 131 may be inclined or recessed toward the discharge hole 133 , so that the residue can be collected in the screen cup 132 more efficiently.

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

Referring to FIGS. 1 , 3 and 4 together, FIG. 3 is a schematic bottom view of the first rotary blade set in FIG. 1 ; FIG. 4 is a top view of the second rotary blade set in FIG. 1 . In this embodiment, the rotary knife assembly 12 includes a first rotary blade set 121 and a second rotary blade set 122 that are coaxially and stacked in the axial direction, 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 set 122 is provided with a second connecting structure 124 , as shown in FIG. 4 . The first connection structure 123 and the second connection structure 124 are separably connected.

The rotary knife assembly 12 includes a first mode of operation and a second mode of operation. In the first working 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 set 121 and the second rotating blade set 122 are fixed, so that the first rotating blade set 121 and the second rotating blade set 121 and the second rotate The blade sets 122 are co-rotatable. In the second working mode, the first connecting structure 123 and the second connecting structure 124 are separated from each other, so that the first rotating blade set 121 and the second rotating blade set 122 are separated, so that the first rotating blade set 121 and the second rotating blade set 122 can be rotated separately.

The separation and connection of the first connection structure 123 and the second connection structure 124 can be realized by a lift drive mechanism. Can be approached or moved away from another rotating blade set. It can also be achieved by adjusting the relative rotation directions of the first connection structure 123 and the second connection structure 124 . Specifically, the first connection structure 123 rotates in the first direction relative to the second connection structure 124, the first connection structure 123 gradually approaches the second connection structure 124, and when the first connection structure 123 rotates to the axial direction with the second connection structure 124 When the above positions overlap, the first connecting structure 123 and the second connecting structure 124 are engaged to realize 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 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 a clockwise direction and the second direction is a counterclockwise direction; or the first direction is a counterclockwise direction and the second direction is a clockwise direction.

Please refer to FIGS. 5-9 , FIG. 5 is a schematic structural diagram of an embodiment of the first connection structure provided by the present application; FIG. 6 is a schematic structural diagram of an embodiment of the second connection structure provided by the present application; FIG. 7 is provided by the present application. Figure 8 is a schematic view of the cross-section of the second base along the A-A direction in Figure 7; Figure 9 is another structure of the cross-section of the second base along the A-A direction in Figure 7 Schematic. Optionally, the first connection structure 123 may be a limiting block disposed on one end surface of the first base 1211 close to the second base 1221 , as shown in FIG. 7 ; the second connection structure 124 may be specifically disposed on the first base 1211 The second base 1221 is close to the limiting groove on one end surface of the first base 1211 , as shown in FIG. 8 . Of course, the first connecting mechanism 123 can also be a limiting groove, and the second connecting mechanism 124 can be a limiting block. In this embodiment, the first connecting mechanism 123 is a limiting block and the second connecting mechanism 124 is a limiting groove. . The number and position of limit slots and limit blocks in the schematic diagram are for illustration only, and the number and positions of limit slots and limit blocks are not limited, and can be adjusted according to actual needs in practical applications.

The number of limit slots can be one or more. When the number of the limiting slots is multiple, the multiple limiting slots may take the first output shaft 1251 as the axis, and are evenly spaced around the first output shaft 1251 on the first base 1211 . Optionally, the limiting slot may be an arc-shaped slot, the side wall of the limiting slot is a curved wall, and the axis of the side wall of the limiting slot is the first output shaft 1251 . Correspondingly, the shape, number and size of the limiting blocks are adapted to the limiting grooves, and the position of the limiting blocks on the first base 1211 corresponds to the limiting grooves. In this way, when the rotating blade set is switched from the second mode to the first mode, and the first rotating knife assembly 121 rotates in the first direction relative to the second rotating knife assembly 122, the limit block rotates around the first output shaft 1251, so that the limit block rotates around the first output shaft 1251. When the block rotates, the connection with the limit groove is realized, and the direction of the force applied by the first rotary knife assembly 121 to the second rotary knife assembly 122 through the limit block is the same as its movement direction, which can lower the first base and the second rotary knife assembly 122. Losses in transmission between bases.

The bottom wall of the limiting groove extends from the surface of the second base 1221 toward one end of the first base 1221 toward the first direction and the thickness direction of the second base 1221 . Optionally, the bottom wall of the limit slot is an arc surface to adapt to the movement trajectory of the limit block, so that when the rotating blade assembly 12 is switched from the second mode to the first mode, the first rotating knife assembly 121 is opposite to the second mode. When the rotary knife assembly 122 rotates in the first direction, the limit block descends spirally relative to the second base 1221, and the movement trajectory of the limit block matches the arc of the bottom wall of the limit slot, and when the lower limit block enters the limit slot friction and obstruction, so that the limit block can smoothly enter the limit groove, and realize the connection between the first rotating knife assembly 121 and the second rotating knife assembly 122; when the rotating blade assembly 12 is switched from the first mode to the second mode, Similarly, the limit block can smoothly exit the limit slot, so as to realize the separation of the first rotary knife assembly 121 and the second rotary knife assembly 122 .

The first rotating blade group 121 rotates in the first direction relative to the second rotating blade group 122, that is, the limit block rotates toward the first direction of the limit slot, and the limit block gradually approaches the limit slot and is inserted into the limit In the groove, the mutual connection between the limit block and the limit groove is realized. The first rotating blade group 121 rotates in the second direction relative to the second rotating blade group 122, that is, the limit block rotates in the second direction relative to the limit groove, and the limit block gradually moves away from the limit groove, so that the limit block and the limit groove can be realized. Separation of limit slots.

The length of the orthographic projection of the limiting groove in the thickness direction of the second base 1221 in the first direction can 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; it can be equal to or It is greater than the length of the opening of the limiting groove on the surface of the second base 1221 , as shown in FIG. 9 . In this way, the limiting block and the limiting groove are more firmly connected, so that the drainage can be more efficient in the first mode.

In this embodiment, by adjusting the connection and separation relationship between the first connection structure 123 and the second connection structure 124, the rotary knife assembly 12 is switched between the first working mode and the second working mode, so that the rotary knife assembly 12 Different functions are implemented in the drain line 11 . The first working mode can be used to facilitate the washing water and residues in the drainage pipe 11 to quickly drain out of the drainage pipe 11 , and the second working mode can be used to break up larger-volume residues in the drainage pipe 11 .

Please refer to FIG. 10 . FIG. 10 is a schematic diagram of the combination of the first rotating blade set and the second rotating blade set in the first working mode in FIG. 1 . The arrow in the figure represents the first direction, and it can be understood that the first direction may also be counterclockwise, which is not limited in this application.

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 jointly move along the Rotating in one direction can provide stable centrifugal force for the washing water and residues in the drainage pipe 11 , so that the washing water and residues can be more easily discharged from the drainage pipe 11 .

Please refer to FIG. 11 . FIG. 11 is a schematic diagram of the combination of the first rotating blade set and the second rotating blade set in the second working mode in FIG. 1 . 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 rotational speeds, or the first rotating blade group 122 The group 121 and the second rotating blade group 122 rotate in opposite directions. When both the first rotating blade group 121 and the second rotating blade group 122 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, they can cancel each other out. The generated vortex, the larger residue will not be quickly centrifuged out, but will stay in the filter cup 132 and be repeatedly cut by the first rotating blade group 121 and the second rotating blade group 122, so that the residue can be fully broken and beaten. The crushed residue is beneficial to be discharged out of the drainage pipe 11 without blocking the drainage pipe 11 .

Continuing to refer to FIG. 1 and FIG. 2 , in this embodiment, the rotary knife assembly 12 may include a driver 125 , and the driver 125 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 is connected to the first rotary blade set 121 and the second rotary blade set 122, and provides power for the rotation of the first rotary blade set 121 and the second rotary blade set 122, so that the first rotary blade set 121 and the second rotary blade set 122 are rotated. It can rotate in a first direction or a second direction at a first speed or a second speed.

The driver 125 may include a first output shaft 1251 and a second output shaft 1252 and a motor 1253 . The first output shaft 1251 passes through 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 set 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 set 122 . The rotation of the first output shaft 1251 drives the rotation of the first rotary blade set 121 ; the rotation of the second output shaft 1252 drives the rotation of the second rotary blade set 122 . In this way, the first rotary blade set 121 and the second rotary blade set 122 can be coaxially arranged and stacked in the axial direction, and the rotation direction of the first connection structure 123 relative to the second connection structure 124 can be adjusted to achieve the first The connection and separation of the connection structure 123 and the second connection structure 124 .

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

The number of drivers 125 can also be 2, wherein the first driver (not shown) is connected to the first rotating blade group 121, and the second driver (not shown) is connected to the second rotating blade group 122, respectively controlling the first rotation. Rotation of the blade set 121 and the second rotating blade set 122 . In the first mode, the first driver and the second driver drive the first rotary blade set 121 and the second rotary blade set 122 to rotate in the same direction. Optionally, 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 on the washing water and the broken residue can be more stable. , draining the drain pipe 11 more efficiently. In the 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 set 121 and the second rotating blade set 122 to rotate in opposite directions to break the drainage pipe Residues in 11. When the number of the drives 125 is two, 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. By adjusting the rotation of the first drive or the second drive The direction enables switching between the first working mode and the second working mode.

Specifically, the first rotating blade set 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 a plurality of first blades 1212 are evenly disposed on the outer peripheral wall of the first base 1211 , so that the first blades 1212 are more stable. The shapes and sizes of the plurality of first blades 1212 are the same, so that the rotation stability of the rotary knife assembly 12 can be improved, and the manufacturing cost of the rotary knife assembly 12 can be reduced. The first base 1211 is connected to the end of the first output shaft 1251 opposite to the motor 1253 , and the second base 1221 is connected to the end of the second output shaft 1252 opposite to the motor 1253 . The motor 1253 works to make the first output shaft 1251 rotate and drive the first base 1211 to rotate, so as to realize the rotation of the first rotating blade group 121; and make the second output shaft 1252 rotate to drive the first base 1211 to rotate, so as to realize the second rotation. Rotation of the rotary blade set 122 . This makes the first blade 1212 more stable during rotation.

The second rotating blade set 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 a plurality of second blades 1222 are evenly disposed on the outer peripheral wall of the second base 1221 . The shapes and sizes of the plurality of second blades 1222 are the same, so that the running stability of the rotary knife assembly 12 can be improved, and the manufacturing cost of the rotary knife assembly 12 can be reduced.

The first connecting structure 123 can be disposed on one end surface of the first base 1211 close to the second base 1221 , and the second connecting structure 124 can be disposed on one 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, so 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 are connected in the second operation mode. The structures 124 are separated from each other.

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

The first blade 1212 can be obliquely installed on the first base 1211, and the second blade 1222 can be obliquely installed on the second base 1221, so that the first blade 1212 and the second blade 1222 have the cutting function at the same time. , it can also increase the contact area with the washing water, and then the rotating knife assembly 12 can quickly discharge the washing water and the broken residue out of the drainage pipe 11 in the first mode.

Optionally, the first blade 1212 and the second blade 1222 may be arc-shaped blades, which are curved in the first direction, so as to increase the force of the washing water, and the rotating blade assembly 12 in the first mode can achieve efficient drainage .

Further, in the first working mode, the first blades 1212 and the second blades 1222 are in one-to-one correspondence, and the projections of the first blades 1212 and the second blades 1222 in the axial direction at least partially overlap, as shown in FIG. 5 . That is, a combination of a first blade 1212 and a second blade 1222 can realize the function of a single large blade in a water pump, for example. In this way, the consumption between the vortices generated by the first rotating blade group 121 and the second rotating blade group 122 can be reduced, so that the rotating knife assembly 12 can provide greater centrifugal force for the washing water and the residue, so that the washing water and the residue can be Drain pipe 11 is drained more efficiently.

Optionally, the rotary knife assembly 12 also includes a bracket 126 . Please refer to FIGS. 12-13 , FIG. 12 is a schematic side view of the structure of the bracket in FIG. 2 ; FIG. 13 is a schematic cross-sectional structure of the bracket in FIG. 12 along the B-B direction. The bracket is disposed between the second rotating blade set 122 and the driver 125 , and the first output shaft 1251 and the second output shaft 1252 pass through the bracket 126 . The inner side wall of the bracket 126 extends downward toward the second output shaft 1252 to form a groove 1261, and the residue is collected in the groove 1261. In the second working mode, the residue can be fully connected with the first rotating blade set 121 and the second rotating blade set 121. The blade set 122 contacts and breaks up the debris and facilitates the discharge of the broken debris.

In this embodiment, switching between the first working mode and the second working mode of the rotary knife assembly 12 can be realized by adjusting the separation and connection states of the first connection structure 123 and the second connection structure 124 to realize different functions. Therefore, 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 pipe 11 . Drainage and slagging efficiency. 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 sufficiently break the residue, reduce the volume of the residue, and make the residue more Easy to drain without clogging the drain pipe 11.

Please refer to FIGS. 14-15 , FIG. 14 is a schematic structural diagram of an embodiment of the dishwasher provided by the present application; FIG. 15 is a cross-sectional structural schematic diagram of the dishwasher in FIG. 14 along the C-C direction.

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

For example, a drain port (not shown) is opened at the bottom of the inner tank 20 , and the drain port communicates with the filter system 10 . The inner container 20 forms a washing cavity 21 for accommodating and washing dishes. The washing water and residues in the washing chamber 21 enter the filtration system 10 through the drain port.

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

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

The residue in the washing chamber 21 is collected in the screen cup 132 through the feeding hole 133, and the rotary knife assembly 12 rotates to break up the residue collected in the screen cup 132, or discharge the washing water and residue in the drainage pipe 11.

The rotary knife assembly 12 includes a first rotary blade set 121 and a second rotary blade set 122 that 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 can be detachably connected.

The rotary knife assembly 12 includes a first mode of operation and a second mode of operation. In the first working 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 set 121 and the second rotating blade set 122 are fixed, so that the first rotating blade set 121 and the second rotating blade set 121 and the second rotate The blade sets 122 are co-rotatable. In the second working mode, the first connecting structure 123 and the second connecting structure 124 are separated from each other, so that the first rotating blade set 121 and the second rotating blade set 122 are separated, so that the first rotating blade set 121 and the second rotating blade set 122 can be rotated separately.

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, A stable centrifugal force can be provided for the washing water and residues in the drainage pipe 11 , so that the washing water and residues are more easily discharged from 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 sufficiently break the residue, reduce the volume of the residue, and make the residue more Easy to drain without clogging the drain pipe 11.

In this embodiment, the dishwasher 100 realizes the function of promoting drainage and slag discharge through the first working mode of the rotary knife assembly 12 , and realizes the function of smashing the residue through the second working mode of the rotating knife assembly 12 to prevent the residue from clogging the drainage pipe 11 . . The rotary knife assembly 12 can perform two functions, and there is no need to provide a drain pump and a slag motor 1253 at the same time, which can reduce the cost of the dishwasher 100 .

The above description is only an embodiment of the present application, and is not intended to limit the scope of the patent of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present application, or directly or indirectly applied to other related technologies Fields are similarly included within the scope of patent protection of this 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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