Residue collection and filtration device and dishwasher

Abstract

A residue collection and filtration device (10) and a dishwasher. The residue collection and filtration device (10) comprises: a water collection cavity (101), the water collection cavity (101) being configured to collect washing water; a filtration cavity (102), the filtration cavity (102) being provided with a first inlet (1021) and a first outlet (1022), the first inlet (1021) being in communication with the water collection cavity (101), the filtration cavity (102) being configured to separate residue from the washing water, and the filtration cavity (102) being provided with a first filter screen (163); a residue collection cavity (103), the residue collection cavity (103) being provided with a second inlet (1031), a second outlet (1032) and a residue discharge port (1033), the second inlet (1031) being in communication with the filtration cavity (102), the residue collection cavity (103) being configured to collect the residue separated by the filtration cavity (102), and the residue collection cavity (103) being provided with a second filter screen (164); a circulation pump (12), the circulation pump (12) being in communication with the first outlet (1022) and the second outlet (1032); and a drainage pump (13), the drainage pump (13) being in communication with the residue discharge port (1033).

Description

Sludge collecting and filtering device and dishwasher

[0001] Cross-reference to Related Applications

[0002] This application claims priority to the Chinese patent application No. 202411311345.9, filed on September 19, 2024, with the Chinese Patent Office, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of dishwashers, in particular to a sludge collecting and filtering device and a dishwasher. BACKGROUND

[0004] The dishwasher applies internal circulating water for jet washing, so as to reduce water consumption. During the washing process, food residues enter the water, and are filtered through the filter screen. As the food residues accumulate, the holes on the filter screen are gradually blocked by large particles, the water inlet of the water pump is gradually reduced, the water jet intensity of the washing is affected, and the tableware is not washed clean. In order to ensure the washing effect of the dishwasher, the user must clean the filter screen regularly.

[0005] In the existing internal circulation system, the residues are always flushed by the circulating water, and small particles of residues can enter the cleaning water and be brought to the tableware, causing secondary pollution of the tableware. In order to ensure the washing effect of the dishwasher, the following solutions are usually used: 1) increasing the filter screen area to reduce the frequency of cleaning the filter screen; 2) using a scraper to clean the side where the residues accumulate on the filter screen.

[0006] However, increasing the filter screen area increases the cost of the filter screen; when the scraper is used for cleaning, the residues are squeezed and penetrate the filter screen into the water pump, causing secondary pollution, affecting the cleaning effect, affecting the performance and service life of the filter screen, and increasing the secondary pollution and affecting the cleaning effect. In addition, the residues adhere to the filter screen, and the residues are difficult to discharge.

[0007] SUMMARY

[0008] One object of the present application is to provide a sludge collecting and filtering device and a dishwasher.

[0009] The sludge collecting and filtering device according to the embodiments of the present application is used in a dishwasher, and includes a water collecting cavity for collecting washing water, a filtering cavity having a first inlet and a first outlet, the first inlet being communicated with the water collecting cavity, the filtering cavity being used for separating residues and water in the washing water, and the filtering cavity being provided with a first filter screen, a sludge collecting cavity having a second inlet, a second outlet and a sludge discharge port, the second inlet being communicated with the filtering cavity, the filtering cavity being used for collecting the separated residues, and the sludge collecting cavity being provided with a second filter screen, a circulating pump communicated with the first outlet and the second outlet, and a drainage pump communicated with the sludge discharge port.

[0010] The slag collecting and filtering device according to the embodiments of the present application can filter the washing water through the filtering cavity and collect the slag through the slag collecting cavity, so as to improve the filtering effect of the slag collecting and filtering device and facilitate slag discharge.

[0011] In addition, the slag collecting and filtering device according to the above embodiments of the present application can further have the following additional technical features:

[0012] In some embodiments, the water collecting cavity and the filtering cavity are arranged side by side, and the first inlet is arranged between the water collecting cavity and the filtering cavity.

[0013] In some embodiments, an air vent is further arranged between the water collecting cavity and the filtering cavity, the air vent is higher than the first inlet, and / or the air vent is not lower than the second inlet.

[0014] In some embodiments, the filtering cavity and the slag collecting cavity are arranged side by side, and the second inlet is arranged between the filtering cavity and the slag collecting cavity.

[0015] In some embodiments, the second inlet is higher than the bottom of the filtering cavity and the bottom of the slag collecting cavity.

[0016] In some embodiments, the slag collecting and filtering device further comprises a drainage cavity arranged below the water collecting cavity and communicating with the water collecting cavity and the slag discharge port, and the drainage pump communicates with the drainage cavity.

[0017] In some embodiments, the slag discharge port is provided with a one-way valve, and when the one-way valve is opened, the slag discharge port communicates with the drainage cavity.

[0018] In some embodiments, the water collecting cavity is provided with a filter cup, a first filtering part is arranged on the peripheral wall of the filter cup, and a second filtering part is arranged on the bottom wall of the filter cup, the first filtering part filters the washing water from the water collecting cavity to the filtering cavity, and the second filtering part filters the washing water from the water collecting cavity to the drainage cavity.

[0019] In some embodiments, the mesh size of the first filtering part is larger than the mesh size of the second filtering part.

[0020] In some embodiments, the water collecting cavity, the filtering cavity and the slag collecting cavity are arranged side by side, the water collecting cavity is adjacent to the filtering cavity, the filtering cavity is adjacent to the slag collecting cavity, and the slag collecting cavity is adjacent to the water collecting cavity.

[0021] In some embodiments, the slag collecting and filtering device further comprises a planar filter screen having a mounting port, the planar filter screen is inclined downward from the peripheral edge to the mounting port, the upper end of the water collecting cavity is provided with a water collecting port and is opposite to the mounting port, and the filter cup is arranged in the mounting port and the water collecting cavity.

[0022] In some embodiments, the lower end of the water collecting cavity is provided with a positioning portion, and the lower end of the filter cup is detachably buckled with the positioning portion.

[0023] In some embodiments, the slag collecting and filtering device comprises a water cup, and the filtering cavity and the slag collecting cavity are arranged in the water cup.

[0024] In some embodiments, the water cup comprises a cup body and a flow channel plate, the filtering cavity and the slag collecting cavity are arranged in the cup body, and the flow channel plate covers the lower end of the cup body.

[0025] In some embodiments, the first outlet and the second outlet are arranged on the flow channel plate, and the flow channel plate is further provided with a pump flow channel which is communicated with the first outlet and the second outlet and is connected with the inlet of the circulating pump.

[0026] In some embodiments, the upper end of the filtering cavity is provided with a filtering cavity cover, the upper end of the first filter screen is rotatably connected with the filtering cavity cover, and the lower end is rotatably connected with the flow channel plate.

[0027] In some embodiments, the upper end of the slag collecting cavity is provided with a slag collecting cavity cover, the upper end of the second filter screen is rotatably connected with the slag collecting cavity cover, and the lower end is rotatably connected with the flow channel plate.

[0028] In some embodiments, the flow channel plate is provided with a flushing device which extends into the filtering cavity for flushing the first filter screen, and the flow channel plate is further provided with a backflushing flow channel which is communicated with the flushing device and is communicated with the outlet of the circulating pump.

[0029] In some embodiments, the flow channel plate is further provided with a transmission cavity, the transmission cavity is provided with a transmission assembly, and the slag collecting and filtering device further comprises a driving member, and the transmission assembly is transmissionally connected with the driving member, the first filter screen and the second filter screen.

[0030] The dishwasher according to the embodiments of the present application comprises the aforementioned slag collecting and filtering device. BRIEF DESCRIPTION OF DRAWINGS

[0031] FIG. 1 is a schematic view of a slag collecting and filtering device according to an embodiment of the present application.

[0032] FIG. 2 is a schematic view of a slag collecting and filtering device according to an embodiment of the present application.

[0033] FIG. 3 is a sectional view of a slag collecting and filtering device according to an embodiment of the present application.

[0034] FIG. 4 is a sectional view of a slag collecting and filtering device according to an embodiment of the present application.

[0035] FIG. 5 is a sectional view of a slag collecting and filtering device according to an embodiment of the present application.

[0036] Figure 6 is a cross-sectional view of a slag collection and filtration device according to an embodiment of this application.

[0037] Figure 7 is a schematic diagram of a slag collection and filtration device according to an embodiment of this application.

[0038] Figure 8 is an exploded view of a slag collection and filtration device according to an embodiment of this application.

[0039] Figure 9 is an exploded view of a slag collection and filtration device according to an embodiment of this application.

[0040] Figure 10 is a schematic diagram of the water cup of a slag collection and filtration device according to an embodiment of this application.

[0041] Reference numerals: 10, Slag collection and filtration device; 101, Water collection chamber; 161, Flat filter screen; 162, Filter cup; 102, Filtration chamber; 1021, First inlet; 1022, First outlet; 1023, Vent; 163, First filter screen; 1631, First baffle; 1632, Filtration chamber cover; 1633, First sealing ring; 103, Slag collection chamber; 1031, Second inlet; 1032, Second outlet; 1033, Slag discharge port; 164, Second filter screen; 1641, Second baffle; 1 642. Slag collection chamber cover; 1643. Second sealing ring; 17. One-way valve; 104. Drainage chamber; 11. Water cup; 111. Cup body; 1111. Water distribution valve; 112. Flow channel plate; 1121. Pump flow channel; 1122. Backflushing flow channel; 1123. Transmission chamber; 1124. Flushing device; 12. Circulation pump; 13. Drainage pump; 14. Drive component; 15. Transmission assembly; 151. First gear; 152. Second gear; 153. Third gear; 154. First shaft; 155. Second shaft. Specific Implementation

[0042] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0043] As shown in Figures 1 to 10, this application provides a residue collection and filtration device 10, which can be used in a dishwasher. The residue collection and filtration device 10 includes a water collection chamber 101, a filter chamber 102, and a residue collection chamber 103. The water collection chamber 101 is used to collect washing water, the filter chamber 102 is used to separate residue and water from the washing water, and the residue collection chamber 103 is used to collect the residue separated by the filter chamber 102.

[0044] Specifically, during the operation of the dishwasher, the circulating pump 12 can drive the washing water to flow from the residue collecting and filtering device 10 to the components such as the spray arm for cleaning the tableware, and the tableware is cleaned by the washing water; then the washing water flows into the residue collecting and filtering device 10 and converges to the water collecting cavity 101; then the washing water in the water collecting cavity 101 flows into the filtering cavity 102, and the washing water in the filtering cavity 102 is subjected to residue-water separation; most of the separated water flows into the circulating pump 12 and is pumped to the components such as the spray arm for cleaning the tableware by the circulating pump 12, and the separated residue flows into the residue collecting cavity 103.

[0045] According to the residue collecting and filtering device 10 of the embodiment of the present application, the washing water can be filtered by the filtering cavity 102, and the residue can be collected by the residue collecting cavity 103, so that the residue can be stored in the residue collecting cavity 103, the residue collection during the washing process is facilitated, and the residue stored in the filtering cavity 102 does not affect the residue-water separation of the washing water in the filtering cavity 102, so that the filtering effect of the residue collecting and filtering device 10 is improved. In addition, after the residue is collected by the residue collecting cavity 103, the residue can be discharged by manual or automatic mode, and since the residue is relatively concentrated, the residue can be conveniently discharged.

[0046] As shown in FIGS. 3 and 10, the filtering cavity 102 can have a first inlet 1021 and a first outlet 1022, the first inlet 1021 is communicated with the water collecting cavity 101, and the first outlet 1022 is used for discharging the separated water, and the filtering cavity 102 is provided with a first filter screen 163. The first inlet 1021 and the second inlet 1031 are arranged on one side of the first filter screen 163, and the first outlet 1022 is arranged on the other side of the first filter screen 163. Specifically, the washing water enters the filtering cavity 102 through the first inlet 1021, the water in the washing water flows to the first outlet 1022 through the first filter screen 163, and is finally pumped for cleaning the tableware. The residue in the washing water is discharged from the filtering cavity 102 through the second inlet 1031 and flows to the residue collecting cavity 103, so that the residue is separated by the residue collecting cavity 103. The residue-water separation of the filtering cavity 102 is facilitated, the filtering efficiency and filtering effect of the filtering cavity 102 are improved, the first filter screen 163 is prevented from being blocked, and the stability of the residue collecting and filtering device 10 is improved. Of course, the first filter screen 163 in the present application can also be arranged outside the filtering cavity 102.

[0047] The slag collecting cavity 103 can have a second inlet 1031, a second outlet 1032 and a slag outlet 1033. The second inlet 1031 is connected to the filtering cavity 102. The second outlet 1032 is used for draining water. The slag outlet 1033 is used for discharging slag. The slag collecting cavity 103 is provided with a second filter screen 164. The second inlet 1031 and the slag outlet 1033 are arranged on one side of the second filter screen 164. The second outlet 1032 is arranged on the other side of the second filter screen 164. Specifically, the separated slag and part of the water after passing through the filtering cavity 102 are introduced into the slag collecting cavity 103 through the second inlet 1031. Under the filtering effect of the second filter screen 164, the water is sent out from the second outlet 1032 and is sent to the component for washing the tableware under the driving effect of the circulating pump 12. The remaining slag after filtering is stored in the slag collecting cavity 103 and can be discharged through the slag outlet 1033. The slag collecting cavity 103 can separate the water and the slag introduced into the slag collecting cavity 103. Therefore, part of the water in the filtering cavity 102 can be introduced into the slag collecting cavity 103. Thus, the water flow can be used to carry the slag in the filtering cavity 102 into the slag collecting cavity 103, so as to facilitate the slag collecting cavity 103 to collect the slag. In addition, the water introduced into the slag collecting cavity 103 is sent out after being filtered, which can avoid the backflow of the slag-water mixture in the slag collecting cavity 103 to the filtering cavity 102. Of course, the second filter screen 164 in the present application can also be arranged outside the slag collecting cavity 103.

[0048] In addition, the slag filtering device 10 further comprises a circulating pump 12 and a drainage pump 13. The circulating pump 12 is connected to the first outlet 1022 and the second outlet 1032. The drainage pump 13 is connected to the slag outlet 1033.

[0049] As shown in FIGS. 3 to 10, in some embodiments, the water collecting cavity 101 and the filtering cavity 102 are arranged side by side. The first inlet 1021 is arranged between the water collecting cavity 101 and the filtering cavity 102. This can facilitate the washing water in the water collecting cavity 101 to flow into the filtering cavity 102, thereby improving the filtering efficiency and filtering flow of the slag filtering device 10 to meet the pumping demand of the circulating pump 12 and the washing water demand of the dishwasher.

[0050] Optionally, an air vent 1023 is further arranged between the water collecting cavity 101 and the filtering cavity 102. The air vent 1023 is connected to the external space of the slag filtering device 10 for balancing the air pressure inside and outside the filtering cavity 102. The air vent 1023 can be arranged on the upper end of the peripheral wall of the filtering cavity 102. This can facilitate the washing water to be discharged into the filtering cavity 102, which is beneficial to filtering the washing water through the slag filtering device 10 and effectively improves the filtering efficiency and effect. In addition, the air vent 1023 is higher than the first inlet 1021 and / or the air vent 1023 is not lower than the second inlet 1031, which can reduce the possibility of the air vent 1023 being blocked.

[0051] In some embodiments, the filtering cavity 102 and the slag collecting cavity 103 are arranged side by side, and the second inlet 1031 is arranged between the filtering cavity 102 and the slag collecting cavity 103. The washing water with residues in the filtering cavity 102 can be conveniently introduced into the slag collecting cavity 103, and the filtering efficiency and effect of the slag filtering device 10 are improved.

[0052] Alternatively, the second inlet 1031 is higher than the bottom of the filtering cavity 102 and the bottom of the slag collecting cavity 103. The fluid in the filtering cavity 102 can be prevented from flowing into the slag collecting cavity 103 without resistance, most of the washing water is filtered in the filtering cavity 102, the amount of washing water introduced into the slag collecting cavity 103 is small, the impact on the residues in the slag collecting cavity 103 is reduced, in addition, the backflow of the residues in the slag collecting cavity 103 is also avoided. In addition, the slag collecting cavity 103 is closed except for the second inlet 1031 and the second outlet 1032 during the filtering of the slag filtering device 10, a relatively high pressure environment can be conveniently formed in the slag collecting cavity 103, so as to reduce the water introduced into the slag collecting cavity 103, the residues can be retained in the slag collecting cavity 103, and the filtering efficiency and effect of the slag filtering device 10 are improved.

[0053] In some embodiments, the slag filtering device 10 further comprises a drainage cavity 104, the drainage cavity 104 is arranged below the water collecting cavity 101 and communicates with the water collecting cavity 101 and the slag discharge port 1033, and the drainage pump 13 communicates with the drainage cavity 104. The residues can be discharged by using the drainage cavity 104, and the automatic slag discharge of the slag filtering device 10 is facilitated. Specifically, during use, the washing water flows into the slag collecting cavity 103, wherein the water enters the filtering cavity 102 from the first inlet 1021, most of the water flows into the first outlet 1022 after passing through the first filter screen 163, a small amount of water flows into the slag collecting cavity 103 and flows into the second outlet 1032 after passing through the second filter screen 164; part of the residues flow into the drainage cavity 104 from the water collecting cavity 101, part of the residues enter the filtering cavity 102 from the water collecting cavity 101, flow into the first outlet 1022 after filtering, enter the slag collecting cavity 103, and remain in the slag collecting cavity 103 after passing through the second filter screen 164; during slag discharge or water discharge, the residues in the slag collecting cavity 103 enter the drainage cavity 104 and are discharged from the slag filtering device 10 together with the residues in the drainage cavity 104.

[0054] Optionally, the residue discharge port 1033 is provided with a one-way valve 17, which opens the residue discharge port 1033 to communicate with the drainage cavity 104. The one-way valve 17 is configured to open the residue discharge port 1033 in the residue discharge direction of the residue collection cavity 103. In addition, the residue discharge port 1033 can communicate with the drainage pump 13. During the filtration process, the drainage pump 13 is closed, the air pressure at the inlet of the drainage pump 13 is relatively high, and the air pressure in the residue collection cavity 103 is relatively low, so that the one-way valve 17 is in a closed state. During the residue discharge process, the drainage pump 13 is running, the air pressure at the inlet of the drainage pump 13 is relatively low, and the air pressure in the residue collection cavity 103 is relatively high, so that the one-way valve 17 is in an open state, so as to discharge the residue in the residue collection cavity 103.

[0055] The aforementioned one-way valve 17 can include a cover plate, a rubber cap, a support, and a third sealing ring, etc., and mainly realizes the opening and closing functions of the residue discharge port 1033. The support can be used as a support and is assembled with the residue discharge port 1033 and sealed by the sealing ring. The support can be provided with an opening, the rubber cap can be connected with the support and arranged to be rotatable for opening and closing the opening, and the part opposite to the opening of the rubber cap is provided with a cover plate for providing support for the rubber cap to improve the sealing effect when the rubber cap closes the opening. The one-way valve 17 is used to realize the opening and closing of the residue discharge port 1033.

[0056] In some embodiments, the water collection cavity 101 is provided with a filter cup 162, the peripheral wall of the filter cup 162 is provided with a first filter part and the bottom wall is provided with a second filter part, the first filter part filters the washing water from the water collection cavity 101 to the filter cavity 102, and the second filter part filters the washing water from the water collection cavity 101 to the drainage cavity 104. The residue can be conveniently discharged. Optionally, the mesh size of the first filter part is larger than that of the second filter part.

[0057] In some embodiments of the present application, the water collection cavity 101, the filter cavity 102, and the residue collection cavity 103 are distributed side by side, the water collection cavity 101 is adjacent to the filter cavity 102, the filter cavity 102 is adjacent to the residue collection cavity 103, and the residue collection cavity 103 is adjacent to the water collection cavity 101. The water and residue can flow conveniently, so as to filter the washing water and collect the residue.

[0058] As shown in FIG. 1 and FIG. 2, in some embodiments, the slag collecting and filtering device 10 further comprises a flat filter screen 161, which has a mounting opening and is arranged to be inclined downward from the periphery to the mounting opening, and the upper end of the water collecting cavity 101 is provided with a water collecting opening opposite to the mounting opening; and a filter cup 162 is arranged in the mounting opening and the water collecting cavity 101. The flat filter screen 161 and the filter cup 162 can be used to perform primary filtering on the washing water, further improving the filtering effect on the washing water, and the filter cup 162 can store larger residues and can be removed for cleaning the slag collecting assembly, etc. The filter screens (the first filter screen 163, the second filter screen 164 and the filter cup 162) in the present application can be arranged in a detachable structure and can be taken out from the inside of the cleaning cavity, facilitating the later maintenance.

[0059] Optionally, the lower end of the water collecting cavity 101 is provided with a positioning portion, and the lower end of the filter cup 162 is detachably buckled with the positioning portion. The filtering and dismounting of the filter cup 162 are facilitated, so as to facilitate the primary filtering and the processing of the residues with large volume.

[0060] In some embodiments, the slag collecting and filtering device 10 comprises a water cup 11, and the water collecting cavity 101, the filtering cavity 102 and the slag collecting cavity 103 are arranged in the water cup 11. The integration of the slag collecting and filtering device 10 can be improved, the slag collecting and filtering device 10 can be simplified and the stability of the dishwasher can be improved. Of course, the water collecting cavity 101, the filtering cavity 102 and the slag collecting cavity 103 in the present application can also be arranged in a split structure.

[0061] Optionally, the water cup 11 comprises a cup body 111 and a flow channel plate 112, the filtering cavity 102 and the slag collecting cavity 103 are arranged in the cup body 111, and the flow channel plate 112 covers the lower part of the cup body 111. The structure of the slag collecting and filtering device 10 can be simplified, and the filtering efficiency and effect of the slag collecting and filtering device 10 can be improved.

[0062] The water cup 11 can comprise the water collecting cavity 101, the filtering cavity 102, the slag collecting cavity 103, a drainage cavity 104 and a shunt cavity, etc. The slag collecting cavity 103 is communicated with the water collecting cavity 101 through a slag discharge opening 1033, and the slag discharge opening 1033 is provided with a one-way valve 17. In the cleaning process, the one-way valve 17 is closed, and the water collecting cavity 101 is separated from the slag collecting cavity 103; in the drainage process, the one-way valve 17 is opened, and the water collecting cavity 101 is communicated with the slag collecting cavity 103. The water cup 11 mainly realizes the functions of water collection, backflushing, slag collection, switching of the flow channel of the spray arm, drainage and slag discharge, etc.

[0063] The flow channel plate 112 of the present application can serve as the bottom wall of the filtering cavity 102 and the slag collecting cavity 103, and is used to position the first filter screen 163 and the second filter screen 164. In addition, the flow channel plate 112 is also provided with a flushing flow channel, which is communicated with the flushing device 1124 and is used to connect the circulating pump 12. The flow channel plate 112 is also provided with a transmission cavity 1123, and the transmission assembly 15 is arranged in the transmission cavity 1123. Specifically, the first gear 151, the second gear 152 and the third gear 153 are arranged in the transmission cavity 1123. The flow channel plate 112 of the present application includes but is not limited to the following embodiments and combinations thereof.

[0064] Embodiment one

[0065] The first outlet 1022 and the second outlet 1032 are arranged on the flow channel plate 112, and the flow channel plate 112 is also provided with a pump flow channel 1121 which is communicated with the first outlet 1022 and the second outlet 1032, and the pump flow channel 1121 is communicated with the inlet of the circulating pump 12. In use, the downstream of the first filter screen 163 and the downstream of the second filter screen 164 can form a negative pressure by using the circulating pump 12, so that the washing water can flow to the pump flow channel 1121, facilitating the use of the slag filtering device 10.

[0066] Embodiment two

[0067] The upper end of the filtering cavity 102 is provided with a filtering cavity cover 1632, and the upper end of the first filter screen 163 is rotatably connected with the filtering cavity cover 1632, and the lower end is rotatably connected with the flow channel plate 112.

[0068] The first filter screen 163 is rotatably arranged in the filtering cavity 102. The rotation of the first filter screen 163 can be used to clean the surface of the filter screen, so as to maintain the filtering performance of the first filter screen 163. In addition, the flushing device 1124 can be arranged and covers the first filter screen 163 along the axial direction of the first filter screen 163. The rotation of the first filter screen 163 can realize the overall flushing of the first filter screen 163, and improve the efficiency and effect of the surface cleaning of the first filter screen 163. In addition, the centrifugal force during the rotation of the first filter screen 163 can separate the residues attached to the surface from the first filter screen 163, and the relative movement between the first filter screen 163 and the water can also separate the residues attached to the surface from the first filter screen 163.

[0069] In some examples, the first filter screen 163 can be arranged to rotate freely. That is, the first filter screen 163 can be arranged to rotate under the driving action of the water flow, which can simplify the structure of the slag filtering device 10 and facilitate the surface cleaning of the first filter screen 163 during the filtering process.

[0070] As shown in FIG. 4 and FIG. 8, the upper end of the filtering cavity 102 is provided with an opening, and is provided with a filtering cavity cover 1632 for opening and closing the filtering cavity 102, and the first filter screen 163 is connected to the filtering cavity cover 1632. Thus, the assembly and maintenance of the centrifugal assembly can be facilitated, and the assembly efficiency of the centrifugal assembly is improved. The filtering cavity cover 1632 can be quickly assembled. Alternatively, the filtering cavity cover 1632 is detachably connected to the filtering cavity 102. The filtering cavity cover 1632 can be quickly disassembled, the stability of the centrifugal assembly is improved, and the state in the filtering cavity 102 can be conveniently observed, so that the centrifugal assembly can be conveniently cleaned.

[0071] Alternatively, the circumferential surface of the filtering cavity cover 1632 is provided with a first groove portion, and a first sealing ring 1633 is arranged along the circumference of the filtering cavity cover 1632 and is fitted into the first groove portion. The first sealing ring 1633 seals the gap between the filtering cavity cover 1632 and the inner circumferential surface of the filtering cavity 102. In addition, the filtering cavity cover 1632 is also provided with a bearing, and the upper end of the first filter screen 163 is connected to the bearing. The bearing is used to realize the rotational connection between the first filter screen 163 and the filtering cavity cover 1632. The upper end of the first filter screen 163 is rotatably connected to the filtering cavity cover 1632.

[0072] Embodiment three

[0073] As shown in FIG. 4 and FIG. 8, the upper end of the slag collecting cavity 103 is provided with a slag collecting cavity cover 1642, and the upper end of the second filter screen 164 is rotatably connected to the slag collecting cavity cover 1642, and the lower end is rotatably connected to the flow channel plate 112.

[0074] The second filter screen 164 is rotatably arranged in the slag collecting cavity 103. The surface of the second filter screen 164 can be cleaned by rotating the second filter screen 164, so as to maintain the filtering performance of the second filter screen 164. During the rotation of the second filter screen 164, the centrifugal force can promote the separation of the residues attached to the surface from the second filter screen 164. The relative movement between the second filter screen 164 and the water can also promote the separation of the residues attached to the surface from the second filter screen 164.

[0075] In some examples, the second filter screen 164 can be arranged to rotate freely. That is, the second filter screen 164 can be arranged to rotate under the driving action of the water flow, which can simplify the structure of the slag collecting and filtering device 10, and can facilitate the surface cleaning of the second filter screen 164 during the filtering process.

[0076] As shown in FIG. 4 and FIG. 8, the upper end of the slag collecting cavity 103 is provided with an opening, and the upper end of the slag collecting cavity 103 is provided with a slag collecting cavity cover 1642 for opening and closing the slag collecting cavity 103. Thus, the assembly and maintenance of the slag collecting and filtering device 10 can be facilitated, and the assembly efficiency of the slag collecting and filtering device 10 is improved.

[0077] The second filter screen 164 is connected with the slag collecting cavity cover 1642, and the slag collecting cavity cover 1642 and the second filter screen 164 can be quickly assembled. Optionally, the slag collecting cavity cover 1642 is detachably connected with the slag collecting cavity 103. The slag collecting cavity cover 1642 can be quickly disassembled, the stability of the slag filtering device 10 is improved, and the state in the slag collecting cavity 103 can be conveniently observed, so that the slag filtering device 10 is conveniently cleaned.

[0078] Optionally, the circumferential surface of the slag collecting cavity cover 1642 is provided with a second groove portion, the second sealing ring 1643 is arranged along the circumference of the slag collecting cavity cover 1642 and is matched with the groove portion, the second sealing ring 1643 seals the gap between the slag collecting cavity cover 1642 and the inner circumferential surface of the slag collecting cavity 103, and in addition, the slag collecting cavity cover 1642 is also provided with a bearing, the upper end of the second filter screen 164 is connected with the bearing, and the bearing is used to realize the rotary connection between the second filter screen 164 and the slag collecting cavity cover 1642. The upper end of the second filter screen 164 is rotatably connected with the slag collecting cavity cover 1642, and the lower end of the second filter screen 164 is rotatably connected with the bottom wall of the slag collecting cavity 103. The upper end of the second filter screen 164 is rotatably connected with the slag collecting cavity cover 1642.

[0079] Embodiment four

[0080] As shown in FIG. 4 and FIG. 8, the flow channel plate 112 is provided with a flushing device 1124, the flushing device 1124 extends into the filtering cavity 102 for flushing the first filter screen 163, and the flow channel plate 112 is also provided with a backwashing flow channel 1122, the backwashing flow channel 1122 is communicated with the flushing device 1124, and the backwashing flow channel 1122 is configured to be communicated with the outlet of the circulating pump 12.

[0081] The flushing device 1124 is arranged to spray water towards the first filter screen 163 to flush the first filter screen 163. Through the flushing device 1124, the surface of the first filter screen 163 can be cleaned to maintain the filtering performance of the first filter screen 163.

[0082] Optionally, the flushing device 1124 can be arranged downstream of the first filter screen 163 and spray water towards the first filter screen 163. Thus, the first filter screen 163 can be backwashed to improve the cleaning effect of the first filter screen 163. Of course, the flushing device 1124 can also be arranged upstream of the first filter screen 163 and spray water towards the first filter screen 163, and the cleaning of the first filter screen 163 can also be realized.

[0083] Further, as shown in FIG. 8, the first filter screen 163 is provided in a cylindrical shape, and a peripheral wall of the first filter screen 163 is used to separate the residue and the water in the washing water, wherein an inner side space of the first filter screen 163 is communicated with the first outlet 1022, and an outer side space of the first filter screen 163 is communicated with the first inlet 1021 and the second inlet 1031. The flushing device 1124 comprises at least one backflushing spray arm arranged in the inner side of the first filter screen 163 and spraying water towards the peripheral wall of the first filter screen 163. When the first filter screen 163 is filtering, the washing water can flow from the outer side space of the first filter screen 163 to the inner side space of the first filter screen 163, and is filtered by the peripheral wall of the first filter screen 163, wherein the outer side space of the first filter screen 163 is configured as the upstream of the first filter screen 163, and the inner side space of the first filter screen 163 is configured as the downstream of the first filter screen 163. Optionally, the flushing device 1124 comprises at least one backflushing spray arm arranged in the inner side of the first filter screen 163 and spraying water towards the peripheral wall of the first filter screen 163. The backflushing spray arm can be used to realize the rapid cleaning of the first filter screen 163, and improve the cleaning efficiency and effect of the filter screen.

[0084] Optionally, the backflushing spray arm is arranged to extend along the axial direction of the first filter screen 163 and deviate from the central axis of the first filter screen 163, so that the spray opening of the backflushing spray arm can be close to the peripheral wall of the first filter screen 163, and the impact force and flushing effect of the water flow on the first filter screen 163 are improved. The spray range of the spray opening of the at least one backflushing spray arm covers the first filter screen 163 along the axial direction of the first filter screen 163, that is, the flushing area of the backflushing spray arm can cover the entire first filter screen 163 along the axial direction, so as to improve the flushing range of the first filter screen 163 and realize effective flushing. In addition, the first filter screen 163 of the present application can be provided to be rotatable, so that the flushing and cleaning of the entire first filter screen 163 can be realized by the backflushing spray arm during the flushing process.

[0085] Optionally, the backflushing spray arm can comprise a plurality of backflushing spray arms, and the plurality of backflushing spray arms can be distributed along the circumferential direction of the first filter screen 163. In this way, the spray openings of the plurality of backflushing spray arms can cover the filtering area of the first filter screen 163, and the arrangement density of the spray openings of the backflushing spray arm can be reduced, so as to improve the structural strength of the backflushing spray arm and the impact force of the spray opening.

[0086] In some embodiments, the flushing device 1124 is communicated with the outlet of the circulating pump 12, and the water used for flushing can be delivered to the flushing device 1124 by the circulating pump 12. The backflushing of the first filter screen 163 can be realized by the pumping action of the circulating pump 12, the structure of the residue collecting and filtering device 10 can be simplified, and the backflushing of the first filter screen 163 can be realized simultaneously during the process of washing the tableware in the dishwasher, so as to improve the filtering efficiency and effect of the residue collecting and filtering device 10.

[0087] Optionally, the slag collecting and filtering device 10 is provided with a water distribution valve 1111 for connecting the spray arm, the outlet of the circulating pump 12 is communicated with the water distribution valve 1111, the circulating pump 12 is connected with a flushing branch, one end of the flushing branch is communicated with the outlet, and the other end is communicated with a flushing device 1124. The structure of the slag collecting and filtering device 10 can be further simplified, and the cleaning efficiency and effect of the first filter screen 163 can be improved.

[0088] Embodiment five

[0089] As shown in FIGS. 1-10, the flow channel plate 112 is further provided with a transmission cavity 1123, the transmission cavity 1123 is provided with a transmission assembly 15, and the slag collecting and filtering device 10 further comprises a driving member 14, the transmission assembly 15 is in transmission connection with the driving member 14, the first filter screen 163 and the second filter screen 164.

[0090] The driving member 14 is in transmission connection with the first filter screen 163 and the second filter screen 164, and the driving member 14 is used to drive the first filter screen 163 and the second filter screen 164 to rotate. That is, the driving member 14 can be used to drive the first filter screen 163 and the second filter screen 164 to rotate, so as to further improve the surface cleanliness of the first filter screen 163 and the second filter screen 164, and improve the filtering effect of the first filter screen 163 and the second filter screen 164.

[0091] Optionally, the driving member 14 is arranged side by side on the outer side of the water cup 11. The arrangement of components of the slag collecting and filtering device 10 can be optimized, the size of the slag collecting and filtering device 10 in the up-down direction can be reduced, and the space utilization of the slag collecting and filtering device 10 can be improved.

[0092] As shown in FIGS. 5-7, the transmission assembly 15 can comprise a first gear 151, a second gear 152 and a third gear 153, the first gear 151, the second gear 152 and the third gear 153 are in transmission connection, the first gear 151 is in transmission connection with the driving member 14, the second gear 152 is in transmission connection with the first filter screen 163, and the third gear 153 is in transmission connection with the second filter screen 164. The first gear 151, the second gear 152 and the third gear 153 can be arranged in the transmission cavity 1123.

[0093] The transmission assembly 15 can further comprise a first shaft 154, the upper end of the first filter screen 163 is provided with a first mounting hole, the upper end of the first shaft 154 is arranged in the first mounting hole, and the first shaft 154 and the first mounting hole can be arranged in key connection or the like, so as to drive the first filter screen 163 to rotate by using the first shaft 154, and the lower end of the first shaft 154 is connected with the second gear 152. The lower end of the first shaft 154 is arranged in the bottom wall of the filtering cavity 102 and is provided with a bearing and an oil seal.

[0094] The transmission assembly 15 can further include a second shaft 155, the upper end of the second filter screen 164 is provided with a second mounting hole, the upper end of the second shaft 155 is arranged through the second mounting hole, and the second shaft 155 and the second mounting hole can be arranged in a key fit or the like, so as to drive the second filter screen 164 to rotate by using the second shaft 155, and the lower end of the second shaft 155 is connected with the second gear 152. The lower end of the second shaft 155 is arranged through the bottom wall of the filtering cavity 102 and is provided with a bearing and an oil seal.

[0095] As shown in some embodiments of FIG. 3 and FIG. 8, the slag collecting and filtering device 10 further includes a first flow disturbing member 1631 arranged in the filtering cavity 102 for agitating the washing water in the filtering cavity 102. The first flow disturbing member 1631 can be used to promote the flow disturbance in the filtering cavity 102, further avoid the first filter screen 163 from being blocked, and facilitate the slag to flow into the slag collecting cavity 103, thereby facilitating the collection of the slag.

[0096] The first flow disturbing member 1631 of the present application can have the following embodiments, but is not limited to them and their combinations.

[0097] Embodiment one, the first flow disturbing member 1631 is rotatably arranged in the filtering cavity 102, and the first flow disturbing member 1631 can realize the flow disturbance of the fluid in the filtering cavity 102 by rotating. Embodiment two, the first flow disturbing member 1631 includes a plurality of blades distributed in the circumferential direction, which can improve the flow disturbance effect of the fluid in the filtering cavity 102. The first flow disturbing member 1631 can be arranged in the form of rotating around the circumferential axis, so that the plurality of blades can disturb the fluid in the filtering cavity 102 during the rotation of the first flow disturbing member 1631. Alternatively, the filtering cavity 102 is provided with a rotatable first filter screen 163, the end of the first filter screen 163 is provided with a blade, and the mixture of slag and water in the filtering cavity 102 can be agitated to facilitate the discharge of the slag. The blade is arranged at the upper end of the first filter screen 163, and when rotating, the blade can push the water to flush the surface of the side filter screen, so that the slag is separated from the filter screen. Embodiment three, the first flow disturbing member 1631 is relatively static with the first filter screen 163. When the first filter screen 163 rotates, the first flow disturbing member 1631 can be driven to rotate, thereby simplifying the driving structure of the first flow disturbing member 1631. Specifically, the first flow disturbing member 1631 can be connected to the lower end of the first filter screen 163 and include a plurality of first blades distributed in the circumferential direction of the first filter screen 163. Embodiment four, the first flow disturbing member 1631 can also be arranged to be relatively static with the filtering cavity 102, so that when the water flows through the first flow disturbing member 1631, the vortex is generated and the vortex is used to disturb the water flow. Embodiment five, at least a part of the first flow disturbing member 1631 is located in the lower part of the filtering cavity 102. The flow disturbance effect of the fluid in the filtering cavity 102 can be improved. Embodiment six, the first flow disturbing member 1631 is connected to the lower end of the first filter screen 163 and is distributed in the direction around the first filter screen 163.

[0098] In some embodiments, the slag collecting and filtering device 10 further comprises a second turbulence member 1641 arranged in the slag collecting cavity 103 for agitating the water and the residue in the slag collecting cavity 103. The second turbulence member 1641 can be used to promote turbulence in the slag collecting cavity 103, facilitating the collection of residue, and when the slag collecting cavity 103 is being drained, the second turbulence member 1641 can also be used to agitate the fluid in the slag collecting cavity 103, facilitating the emptying of residue in the slag collecting cavity 103, facilitating the cleaning of the dishwasher, avoiding the breeding of bacteria, and improving the cleaning effect and safety of the dishwasher.

[0099] The second turbulence member 1641 of the present application can have the following embodiments, including but not limited to the following embodiments and combinations thereof.

[0100] In embodiment one, the second turbulence member 1641 is rotatably arranged in the slag collecting cavity 103, and the second turbulence member 1641 can agitate the fluid in the slag collecting cavity 103 by rotating. In embodiment two, the second turbulence member 1641 comprises a plurality of blades spaced apart in the circumferential direction, which can improve the turbulence effect on the fluid in the slag collecting cavity 103. Further, the second turbulence member 1641 can be arranged in the form of rotating around the circumferential axis, so that during the rotation of the second turbulence member 1641, the plurality of blades can be used to agitate the fluid in the slag collecting cavity 103. Alternatively, the slag collecting cavity 103 is provided with a rotatable second filter screen 164, and the end of the second filter screen 164 is provided with blades, which can agitate the mixture of residue and water in the slag collecting cavity 103, facilitating the discharge of residue. The second filter screen 164 is provided with blades at one end, which can push water to flush the surface of the side filter screen when rotating, so as to separate the residue from the filter screen. In embodiment three, the second turbulence member 1641 is relatively stationary with the second filter screen 164. When the second filter screen 164 rotates, it can drive the second turbulence member 1641 to rotate, thereby simplifying the driving structure of the second turbulence member 1641. Alternatively, the second turbulence member 1641 is connected to the lower end of the second filter screen 164 and comprises a plurality of second blades spaced apart in the circumferential direction of the second filter screen 164. In embodiment four, the second turbulence member 1641 can also be arranged to be relatively stationary with the slag collecting cavity 103, so that when the water flows through the second turbulence member 1641, it will generate vortex flow, and the vortex flow can be used to agitate the water flow. In embodiment five, at least a part of the second turbulence member 1641 is located in the lower part of the slag collecting cavity 103. This can improve the turbulence effect on the fluid in the slag collecting cavity 103. In embodiment six, the second turbulence member 1641 is connected to the lower end of the second filter screen 164 and is distributed in the direction around the second filter screen 164.

[0101] In some embodiments, the first filter screen 163 is in a cylindrical shape, and the circumferential wall of the first filter screen 163 is used for filtering. The filtering area of the first filter screen 163 can be increased, so that a larger flow of filtering is achieved, to ensure the washing efficiency of the dishwasher. In combination with the aforementioned first filter screen 163, the first filter screen 163 is rotatably arranged around the axis of the first filter screen 163 in the filtering cavity 102, and the inner space of the first filter screen 163 is opposite to the first outlet 1022.

[0102] In some embodiments, the second filter screen 164 is in a cylindrical shape, and the circumferential wall of the second filter screen 164 is used for filtering. The inner space of the second filter screen 164 is connected to the second outlet 1032, and the outer space of the second filter screen 164 is connected to the second inlet 1031 and the residue discharge port 1033. The filtering area of the second filter screen 164 can be increased, so that a larger flow of filtering is achieved, to ensure the washing efficiency of the dishwasher. In combination with the aforementioned second filter screen 164, the second filter screen 164 is rotatably arranged around the axis of the second filter screen 164 in the residue collecting cavity 103, and the inner space of the second filter screen 164 is opposite to the second outlet 1032.

[0103] In some embodiments, the mesh size of the first filter screen 163 is not less than 0.1 mm and not more than 1 mm. When the first filter screen 163 is rotatable and the rotating speed is relatively high (for example, greater than 1000 rpm), the mesh size of the first filter screen 163 can be appropriately increased. Alternatively, the mesh size of the first filter screen 163 is not less than 0.6 mm and not more than 1 mm. For example, the mesh size of the first filter screen 163 can be 0.1 mm, 0.2 mm, 0.35 mm, 0.5 mm, 0.6 mm, 0.75 mm, or 1 mm, etc. Of course, when the rotating speed of the first filter screen 163 is relatively low (for example, not more than 1000 rpm), the mesh size of the first filter screen 163 can be appropriately reduced.

[0104] In some embodiments, the mesh size of the second filter screen 164 is not less than 0.1 mm and not more than 1 mm. When the second filter screen 164 is rotatable and the rotating speed is relatively high (for example, greater than 1000 rpm), the mesh size of the second filter screen 164 can be appropriately increased. Alternatively, the mesh size of the second filter screen 164 is not less than 0.6 mm and not more than 1 mm. For example, the mesh size of the second filter screen 164 can be 0.1 mm, 0.2 mm, 0.35 mm, 0.5 mm, 0.6 mm, 0.75 mm, or 1 mm, etc. Of course, when the rotating speed of the second filter screen 164 is relatively low (for example, not more than 1000 rpm), the mesh size of the second filter screen 164 can be appropriately reduced.

[0105] In some embodiments, the inner bottom surface of the slag collecting cavity 103 is provided as an inclined surface gradually inclined downward in the direction from the filtering cavity 102 to the slag discharge port 1033, so as to facilitate the flow of the residues or water etc. entering the slag collecting cavity 103 towards the slag discharge port 1033, to facilitate the smooth slag discharge of the slag discharge port 1033, and to avoid the residues remaining in the slag collecting cavity 103 to cause bacterial breeding. Optionally, the lower end of the second filter screen 164 is higher than the inner bottom surface of the slag collecting cavity 103, so as to avoid the residues remaining in the slag collecting cavity 103 from adhering to the surface of the second filter screen 164, and to improve the filtering performance of the second filter screen 164. Optionally, the inner bottom surface of the slag collecting cavity 103 is provided with a boss, the second outlet 1032 is arranged on the top surface of the boss, and the second filter screen 164 is arranged on the boss. The filtering performance of the second filter screen 164 can be improved, and the boss can be used to provide support for the second filter screen 164 to maintain the stability of the second filter screen 164.

[0106] The application also provides a dishwasher comprising the aforementioned slag collecting and filtering device 10.

[0107] In combination with FIGS. 1-10, the slag collecting and filtering device 10 of the application can comprise a water collecting cavity 101, a filtering cavity 102, a slag collecting cavity 103, a circulating pump 12, a drain pump 13, a water distribution valve 1111, etc. The device has a multi-stage filtering function. The main multi-stage filtering is performed by the planar filter screen 161, the filter cup 162, the first filter screen 163, the second filter screen 164, the circulating pump 12, the driving member 14, the transmission assembly 15, etc.

[0108] Specifically, the first-stage filtering system comprises the planar filter screen 161 and the filter cup 162. During the cleaning process, after the water washes the surface of the tableware, the water carries the residues to the bottom of the cleaning cavity, flows through the planar filter screen 161, and collects in the water collecting cavity 101. The residues smaller than the aperture size of the planar filter screen 161 (0.5-2 mm) enter the filtering cavity 102. The residues larger than the aperture size of the planar filter screen 161 enter the filter cup 162.

[0109] The filter cup 162 has two aperture sizes. The aperture size of the side surface of the filter cup 162 can be set to 0.5-3 mm. The aperture size of the bottom of the filter cup 162 can be set to 5-10 mm. The residues larger than the aperture size of the bottom of the filter cup 162 need to be cleaned manually. The residues smaller than the aperture size of the side surface of the filter cup 162 and larger than the aperture size of the bottom of the filter cup 162 are discharged by the drain pump 13 during the water drainage. The residues smaller than the aperture size of the side surface of the filter cup 162 enter the filtering cavity 102. The first-stage filtering realizes the filtering of the residues larger than 3 mm.

[0110] The secondary filtering system is composed of the first filter screen 163 and the second filter screen 164. The first filter screen 163 and the second filter screen 164 can have the same or different aperture diameters. The water and the residue entering the filtering cavity 102 are filtered by the first filter screen 163, and the tiny particles smaller than the first filter screen 163 can pass through the filter screen and enter the circulating pump 12 with the water. The residue larger than the first filter screen 163 (with a size of 0.1-3 mm) enters the residue collecting cavity 103. When draining water, the residue in the residue collecting cavity 103 is discharged by the drainage pump 13.

[0111] The first filter screen 163 and the second filter screen 164 of the secondary filtering are driven to rotate by the driving member 14 and the transmission assembly 15. Under the action of the centrifugal force, the residue is separated from the filter screen.

[0112] In the application, the first filter screen 163 and / or the second filter screen 164 can be rotatable and utilize centrifugal separation.

[0113] Specifically, the water filtered by the primary filtering enters the filtering cavity 102, and the first filter screen 163 rotates at high speed under the driving of the driving member 14 (such as a motor). Through the high-speed rotation of the first filter screen 163, the contamination adhered to the outer surface of the first filter screen 163 is separated from the filter screen, so that the first filter screen 163 has better water permeability. The first filter screen 163 is provided with first blades, the rotation of the first blades pushes the water to flush the surface of the first filter screen 163, accelerates the separation of the residue from the filter screen, and makes the filter screen cleaning more thorough. In addition, the first inlet 1021 is arranged on the peripheral surface of the filtering cavity 102, the first outlet 1022 is arranged on the bottom surface of the filtering cavity 102, and the second inlet 1031 is arranged on the peripheral surface of the filtering cavity 102. When the circulating pump 12 works, the water is sucked from the filtering cavity 102 into the pump cavity of the circulating pump 12. A low-pressure area is formed at the first outlet 1022, the outer side of the filter screen of the filtering cavity 102 is a relatively high-pressure area, and the position of the first inlet 1021 is a relatively high-pressure area; a low-pressure area is formed at the second outlet 1032, and the position of the second inlet 1031 is a relatively high-pressure area. Therefore, part of the water enters the second outlet 1032 through the residue collecting cavity 103. The contamination on the outer side of the first filter screen 163 is pushed towards the second inlet 1031 by the water flow, and enters the residue collecting cavity 103 through the second inlet 1031. Since the water flow in the residue collecting cavity 103 is slow, and the second filter screen 164 is arranged at the second outlet 1032, the contamination is collected in the residue collecting cavity 103, the residue collecting function is realized, the contamination is separated from the circulating water, therefore, the water for cleaning tableware is always clean water, and the secondary pollution of the tableware is avoided. In addition, the application also provides a cleaning module for cleaning the first filter screen 163, and the circulating water micro-filtration function and the centrifugal cleaning filter screen function are used to clean the first filter screen 163.

[0114] In addition, during the cleaning process, the water filtered by the first filter enters the slag collection chamber 103 from the second inlet 1031 through the filter chamber 102, and the slag is collected in the slag collection chamber 103 and separated from the main circulating water, so as to realize slag-water separation. In order to solve the problem of slag blocking the second filter screen 164, a second blade is arranged at the bottom of the second filter screen 164. The second filter screen 164 is driven to rotate by the motor, and the water flow driven by the second blade scours the surface of the filter screen, so that the slag is separated from the surface of the filter screen. When draining, the second filter screen 164 rotates, and the second flow disturbing member 1641 agitates the water in the slag collection chamber 103 to make the slag move with the water, and the slag is discharged through the slag discharge port 1033 of the slag collection chamber 103. The slag collection chamber 103 can realize the functions of slag collection and slag-water separation.

[0115] The slag collection and filtration device 10 of the present application can separate the slag from the circulating water, realize clean water cleaning, avoid secondary pollution, automatically clean the filter screen through centrifugal separation, and the filter screen does not need to be maintained by people, can ensure the stability of the water pump output, improve the working efficiency of the water pump, and make the slag more easily discharged after aggregation. All filter screens can be easily taken out and maintained.

[0116] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0117] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0118] In the present application, unless specifically defined otherwise, the terms "mounting", "connected", "connection", "fixed", and the like, should be construed broadly and do not necessarily imply that the elements being connected are directly and fixedly connected to each other. They can be directly connected or indirectly connected through an intermediate medium. They can be fixed or movable or integrally formed. They can be mechanical connection, or electrical connection. They can be direct connection or indirect connection through an intermediate medium. They can be the internal communication between two elements or the interaction between two elements. Unless otherwise specifically defined, the above terms should be understood in the specific context of the present application.

[0119] In the present application, unless specifically defined otherwise, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or it only means that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or it only means that the horizontal height of the first feature is less than that of the second feature.

[0120] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present application and the features of different embodiments or examples can be combined and modified by those skilled in the art without contradiction.

[0121] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A slag collecting filter device (10) for a dishwasher, wherein, The slag collecting and filtering device (10) comprises: a water collecting cavity (101) for collecting washing water; a filtering cavity (102) having a first inlet (1021) and a first outlet (1022), the first inlet (1021) being communicated with the water collecting cavity (101), the filtering cavity (102) being used for separating residues and water in the washing water, and the filtering cavity (102) being provided with a first filter screen (163); a residue collecting cavity (103) having a second inlet (1031), a second outlet (1032) and a residue discharge port (1033), the second inlet (1031) being communicated with the filtering cavity (102), the filtering cavity (102) being used for collecting residues separated by the filtering cavity (102), and the residue collecting cavity (103) being provided with a second filter screen (164); a circulating pump (12) communicated with the first outlet (1022) and the second outlet (1032); a water discharge pump (13) communicated with the residue discharge port (1033).

2. The slag filtering device (10) according to claim 1, wherein The water collecting cavity (101) and the filtering cavity (102) are distributed side by side, and the first inlet (1021) is arranged between the water collecting cavity (101) and the filtering cavity (102).

3. The slag filtering device (10) according to claim 2, wherein A vent (1023) is further arranged between the water collecting cavity (101) and the filtering cavity (102), the vent (1023) being higher than the first inlet (1021) and / or the vent (1023) not being lower than the second inlet (1031).

4. The slag filtering device (10) according to any one of claims 1-3, wherein The filtering cavity (102) and the residue collecting cavity (103) are distributed side by side, and the second inlet (1031) is arranged between the filtering cavity (102) and the residue collecting cavity (103).

5. The slag filtering device (10) according to claim 4, wherein The second inlet (1031) is higher than the bottom of the filtering cavity (102) and the bottom of the residue collecting cavity (103).

6. The slag filtering device (10) according to any one of claims 1-5, wherein The slag collecting and filtering device (10) further comprises a water discharge cavity (104) arranged below the water collecting cavity (101) and communicated with the water collecting cavity (101) and the residue discharge port (1033), and the water discharge pump (13) is communicated with the water discharge cavity (104).

7. The slag filtering device (10) according to claim 6, wherein The residue discharge port (1033) is provided with a one-way valve (17), and when the one-way valve (17) is opened, the residue discharge port (1033) is communicated with the water discharge cavity (104).

8. The slag filtering device (10) according to claim 6 or 7, wherein The water collecting cavity (101) is provided with a filter cup (162), a peripheral wall of the filter cup (162) is provided with a first filter part, and a bottom wall of the filter cup (162) is provided with a second filter part, the first filter part is used for filtering washing water from the water collecting cavity (101) to the filtering cavity (102), and the second filter part is used for filtering washing water from the water collecting cavity (101) to the water discharge cavity (104).

9. The slag filtering device (10) according to claim 8, wherein The mesh size of the first filter part is larger than the mesh size of the second filter part.

10. The slag filtering device (10) according to any one of claims 1-9, wherein The water collecting cavity (101), the filtering cavity (102) and the slag collecting cavity (103) are distributed side by side, the water collecting cavity (101) is adjacent to the filtering cavity (102), the filtering cavity (102) is adjacent to the slag collecting cavity (103), and the slag collecting cavity (103) is adjacent to the water collecting cavity (101).

11. The slag filtering device (10) according to any one of claims 1-10, wherein The slag collecting and filtering device (10) further comprises: A plane filter screen (161) is provided with a mounting opening, and the plane filter screen (161) is inclined downward from the periphery to the mounting opening, and the upper end of the water collecting cavity (101) is provided with a water collecting opening and is opposite to the mounting opening; A filter cup (162) is provided in the mounting opening and the water collecting cavity (101).

12. The slag filtering device (10) according to claim 11, wherein The lower end of the filter cup (162) is detachably buckled with a positioning portion at the lower end of the water collecting cavity (101).

13. The slag filtering device (10) according to any one of claims 1-12, wherein The slag collecting and filtering device (10) comprises a water cup (11), and the water collecting cavity (101), the filtering cavity (102) and the slag collecting cavity (103) are arranged in the water cup (11).

14. The slag filtering device (10) according to claim 13, wherein The water cup (11) comprises a cup body (111) and a flow channel plate (112), the filtering cavity (102) and the slag collecting cavity (103) are arranged in the cup body (111), and the flow channel plate (112) covers the lower portion of the cup body (111).

15. The slag filtering device (10) according to claim 14, wherein The first outlet (1022) and the second outlet (1032) are arranged on the flow channel plate (112), the flow channel plate (112) is further provided with a pump flow channel (1121) communicating the first outlet (1022) and the second outlet (1032), and the pump flow channel (1121) is connected with the inlet of a circulating pump (12); And / or, the upper end of the filtering cavity (102) is provided with a filtering cavity cover (1632), the upper end of the first filter screen (163) is rotatably connected with the filtering cavity cover (1632), and the lower end is rotatably connected with the flow channel plate (112); And / or, the upper end of the slag collecting cavity (103) is provided with a slag collecting cavity cover (1642), the upper end of the second filter screen (164) is rotatably connected with the slag collecting cavity cover (1642), and the lower end is rotatably connected with the flow channel plate (112); And / or, the flow channel plate (112) is provided with a flushing device (1124) extending into the filtering cavity (102) for flushing the first filter screen (163), and the flow channel plate (112) is further provided with a backflushing flow channel (1122) communicating the flushing device (1124), and the backflushing flow channel (1122) is configured to communicate with the outlet of the circulating pump (12); And / or, the flow channel plate (112) is further provided with a transmission cavity (1123), the transmission cavity (1123) is provided with a transmission assembly (15), the slag collecting and filtering device (10) further comprises a driving member (14), and the transmission assembly (15) is transmissionally connected with the driving member (14), the first filter screen (163) and the second filter screen (164).

16. A dishwasher, wherein, The slag filter device (10) according to any one of claims 1 to 15. The slag filter device (10) according to any one of claims 1 to 15.

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