Slag collecting and filtering device and dish washing machine

Abstract

The utility model discloses a residue collecting and filtering device and dish-washing machine, the residue collecting and filtering device comprises a filtering cavity and a residue collecting cavity, the filtering cavity is used for introducing washing water and separating residues and water in the washing water, and the residue collecting cavity is communicated with the filtering cavity and collects the residues separated by the filtering cavity. According to the slag collecting and filtering device disclosed by the embodiment of the utility model, the washing water can be filtered through the filtering cavity, and the slag collecting cavity is used for collecting the slag, so that the filtering effect of the slag collecting and filtering device is improved, and the slag is convenient to discharge.

Description

Technical Field

[0001] The utility model relates to the technical field of dishwashers, and particularly relates to a slag collection and filtration device and a dishwasher. Background Art

[0002] The dishwasher uses internal circulating water for jet dishwashing to reduce water consumption. During the dishwashing process, food residues enter the water and are filtered through a filter screen. As the food residues accumulate, the holes in the filter screen are gradually blocked by large particles, the water inlet volume of the water pump gradually decreases, affecting the water jet intensity for dishwashing and resulting in unclean tableware. To ensure the dishwashing effect of the dishwasher, the user must clean the filter screen regularly.

[0003] In the existing internal circulation system, the residues are continuously washed by the circulating water, and small particle residues will enter the cleaning water and be carried to the tableware, causing secondary pollution of the tableware. To ensure the dishwashing effect of the dishwasher, there are usually the following several solutions: 1) increasing the area of the filter screen to reduce the frequency of the user cleaning the filter screen; 2) using a scraper to clean on the side where the residues accumulate on the filter screen.

[0004] However, increasing the area of the filter screen increases the cost of the filter screen; when cleaning with the scraper, the residues will be squeezed, and the residues will pass through the filter screen and enter the water pump, forming secondary pollution, affecting the cleaning effect, the performance and service life of the filter screen, and also increasing the secondary pollution and affecting the cleaning effect. In addition, the residues adhere to the filter screen and are difficult to discharge. Summary of the Utility Model

[0005] An object of the present utility model is to provide a slag collection and filtration device and a dishwasher.

[0006] The slag collection and filtration device according to an embodiment of the present utility model is used for a dishwasher. The slag collection and filtration device includes a filtration chamber and a slag collection chamber. The filtration chamber is used for introducing washing water and separating residues and water in the washing water. The slag collection chamber is communicated with the filtration chamber and collects the residues separated by the filtration chamber.

[0007] The slag collection and filtration device according to an embodiment of the present utility model can filter the washing water through the filtration chamber and use the slag collection chamber for slag collection, so as to improve the filtration effect of the slag collection and filtration device and facilitate slag discharge.

[0008] In addition, the slag collection and filtration device according to the above embodiment of the present utility model may further have the following additional technical features:

[0009] In some embodiments, the filtration chamber is provided with a first inlet for introducing washing water, a first outlet for discharging the separated water, and a slag outlet communicated with the slag collection chamber. The filtration chamber is provided with a first filter screen. The first inlet and the slag outlet are arranged on one side of the first filter screen, and the first outlet is arranged on the other side of the first filter screen.

[0010] In some embodiments, the slag collection and filtering device further includes a flushing device, and the flushing device is configured to spray water toward the first filter screen to flush the first filter screen.

[0011] In some embodiments, the first filter screen is configured to be cylindrical, the peripheral wall of the first filter screen is used to separate the residue and water in the washing water, and the flushing device includes at least one backwash spray arm disposed on the inner side of the first filter screen and spraying water toward the peripheral wall of the first filter screen.

[0012] In some embodiments, the first filter screen is rotatably disposed in the filter cavity, wherein the first filter screen is configured to rotate freely; or, the slag collection and filtering device further includes a driving member, the driving member is transmission-connected to the first filter screen, and the driving member is used to drive the first filter screen to rotate.

[0013] In some embodiments, the slag filtering device also includes a first spoiler, which is connected to the lower end of the first filter screen and includes a plurality of first blades distributed at circumferential intervals along the first filter screen; and / or, the upper end of the filter chamber has an opening, and a filter chamber cover is provided for opening and closing the filter chamber, and the first filter screen is connected to the filter chamber cover.

[0014] In some embodiments, the slag collecting chamber is provided with a second inlet connected to the filter chamber, a second outlet for drainage, and a slag discharge port for slag discharge, and the slag collecting chamber is provided with a second filter screen, the second inlet and the slag discharge port are arranged on one side of the second filter screen, and the second outlet is arranged on the other side of the second filter screen.

[0015] In some embodiments, the second filter screen is rotatably disposed in the slag collecting chamber, wherein the second filter screen is configured to rotate freely; or, the slag collecting and filtering device further includes a driving member, which is transmission-connected to the second filter screen, and the driving member is used to drive the second filter screen to rotate.

[0016] In some embodiments, the slag collecting and filtering device also includes a second spoiler, which is connected to the lower end of the second filter screen and includes a plurality of second blades distributed at circumferential intervals along the second filter screen; and / or, the upper end of the slag collecting chamber has an opening, and a slag collecting chamber cover is provided for opening and closing the slag collecting chamber, and the second filter screen is connected to the slag collecting chamber cover; and / or, the second inlet is higher than the inner bottom surface of the filter chamber.

[0017] In some embodiments, the slag discharge port is provided with a one-way valve, and the one-way valve is configured to be openable in one direction along the slag discharge direction of the slag collecting chamber; and / or, when the slag collecting filtering device is filtering, other positions of the slag collecting chamber except the second inlet and the second outlet are closed.

[0018] In some embodiments, the filtering chamber is provided with ventilation holes, which communicate with the external space of the slag collection and filtering device to balance the internal and external air pressures of the filtering chamber; and / or, the filtering chamber and the slag collection chamber are arranged side by side.

[0019] In some embodiments, the slag collection and filtering device includes a water cup, and the filtering chamber and the slag collection chamber are arranged in the water cup.

[0020] In some embodiments, the water cup includes a cup body and a flow channel plate. The filtering chamber and the slag collection chamber are arranged in the cup body and extend in the vertical direction. The flow channel plate is connected to the lower end of the cup body. The flow channel plate is provided with a first outlet, a second outlet, and a pump flow channel. The first outlet communicates with the filtering chamber, the second outlet communicates with the slag collection chamber, and the pump flow channel communicates with the first outlet and the second outlet. The pump flow channel is used to connect the circulation pump of the dishwasher.

[0021] The dishwasher according to an embodiment of the present invention includes the aforementioned slag collection and filtering device. Description of the Drawings

[0022] Figure 1 is a schematic diagram of the slag collection and filtering device according to an embodiment of the present invention.

[0023] Figure 2 is a schematic diagram of the slag collection and filtering device according to an embodiment of the present invention.

[0024] Figure 3 is a cross-sectional view of the slag collection and filtering device according to an embodiment of the present invention.

[0025] Figure 4 is a cross-sectional view of the slag collection and filtering device according to an embodiment of the present invention.

[0026] Figure 5 is a cross-sectional view of the slag collection and filtering device according to an embodiment of the present invention.

[0027] Figure 6 is a cross-sectional view of the slag collection and filtering device according to an embodiment of the present invention.

[0028] Figure 7 is a schematic diagram of the slag collection and filtering device according to an embodiment of the present invention.

[0029] Figure 8 is an exploded schematic diagram of the slag collection and filtering device according to an embodiment of the present invention.

[0030] Figure 9 is an exploded schematic diagram of the slag collection and filtering device according to an embodiment of the present invention.

[0031] Figure 10Schematic diagram of a water cup of the slag collection and filtration device according to an embodiment of the present utility model.

[0032] Reference numerals: 10, slag collection and filtration device; 101, water collection cavity; 161, flat filter screen; 162, filter cup; 102, filtration cavity; 1021, first inlet; 1022, first outlet; 1023, ventilation port; 163, first filter screen; 1631, first flow disturbing member; 1632, filtration cavity cover; 1633, first sealing ring; 103, slag collection cavity; 1031, second inlet; 1032, second outlet; 1033, slag discharge port; 164, second filter screen; 1641, second flow disturbing member; 1642, slag collection cavity cover; 1643, second sealing ring; 17, one-way valve; 104, drainage cavity; 11, water cup; 111, cup body; 1111, water distribution valve; 112, flow channel plate; 1121, pump flow channel; 1122, backwashing flow channel; 1123, transmission cavity; 1124, flushing device; 12, circulation pump; 13, drainage pump; 14, driving member; 15, transmission assembly; 151, first gear; 152, second gear; 153, third gear; 154, first shaft; 155, second shaft. Detailed implementation manners

[0033] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the drawings, where 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 drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0034] As Figures 1 to 10 , the present utility model provides a slag collection and filtration device 10, which can be used in a dishwasher. The slag collection and filtration device 10 includes a filtration cavity 102 and a slag collection cavity 103. The filtration cavity 102 is used for introducing washing water and separating residues and water in the washing water, and the slag collection cavity 103 is connected to the filtration cavity 102 and collects the residues separated by the filtration cavity 102.

[0035] Specifically, during the operation of the dishwasher, the circulation pump 12 can drive the washing water to flow from the slag collection and filtration device 10 to components such as the spray arm for washing tableware, and wash the tableware and the like with the washing water; subsequently, the washing water flows into the filtration cavity 102, and the washing water entering the filtration cavity 102 is subjected to slag-water separation; most of the separated water will flow into the circulation pump 12 and be pumped to components such as the spray arm for washing tableware by the circulation pump 12, and the separated residues will flow into the slag collection cavity 103.

[0036] According to the slag collection and filtration device 10 of the embodiments of the present utility model, the washing water can be filtered through the filtration chamber 102, and the slag can be collected by using the slag collection chamber 103. The residue can be retained in the slag collection chamber 103 to facilitate the collection of residues during the washing process and avoid the residue remaining in the filtration chamber 102 from affecting the separation of slag and water in the washing water in the filtration chamber 102, thereby improving the filtration effect of the slag collection and filtration device 10. In addition, after the residue is collected by the slag collection chamber 103, the slag can be discharged manually or automatically. Since the residue is relatively concentrated, the slag discharge can be facilitated.

[0037] As Figure 3 and Figure 10 shown in, in some embodiments, the filtration chamber 102 is provided with a first inlet 1021, a first outlet 1022 and a slag outlet. The first inlet 1021 is used to introduce the washing water, the first outlet 1022 is used to discharge the separated water, and the slag outlet communicates with the slag collection chamber 103. The filtration chamber 102 is provided with a first filter screen 163. The first inlet 1021 and the slag outlet 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 filtration chamber 102 through the first inlet 1021. The water in the washing water will flow through the first filter screen 163 to the first outlet 1022 and will ultimately be pumped for washing tableware and the like. The residue in the washing water will be sent out of the filtration chamber 102 through the slag outlet and flow to the slag collection chamber 103, thereby separating the residue by using the slag collection chamber 103. It is convenient for the filtration chamber 102 to separate slag and water, improve the filtration efficiency and filtration effect of the filtration chamber 102, and at the same time, it can avoid the blockage of the first filter screen 163 and improve the stability of the slag collection and filtration device 10. Of course, the first filter screen 163 in the present utility model can also be arranged outside the filtration chamber 102.

[0038] As Figure 3 and Figure 10 shown in, in some examples, the slag collection and filtration device 10 further includes a flushing device 1124. 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 cleaning of the first filter screen 163 can be realized to maintain the filtration performance of the first filter screen 163.

[0039] 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 reverse flushing of the first filter screen 163 can be realized to improve the cleaning effect on 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.

[0040] Further, as Figure 3 and Figure 10, the first filter screen 163 is provided in a cylindrical shape. The peripheral wall of the first filter screen 163 is used to separate residues and water in the washing water. Among them, the inner space of the first filter screen 163 communicates with the first outlet 1022, and the outer space of the first filter screen 163 communicates with the first inlet 1021 and the slag outlet. The flushing device 1124 includes at least one backflush spray arm provided inside the first filter screen 163 and spraying water towards the peripheral wall of the first filter screen 163. When the first filter screen 163 performs filtration, the washing water can flow from the outer space of the first filter screen 163 to the inner space of the first filter screen 163, and the peripheral wall of the first filter screen 163 is used for filtration. Among them, the outer space of the first filter screen 163 is configured as the upstream of the first filter screen 163, and the inner space of the first filter screen 163 is configured as the downstream of the first filter screen 163. Optionally, the flushing device 1124 includes at least one backflush spray arm provided inside the first filter screen 163 and spraying water towards the peripheral wall of the first filter screen 163. The backflush spray arm can be used to quickly clean the first filter screen 163, improving the cleaning efficiency and effect of the filter screen.

[0041] Optionally, the backflush spray arm is provided 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 nozzle of the backflush spray arm can be close to the peripheral wall of the first filter screen 163, improving the impact force of the water flow on the first filter screen 163 and the flushing effect. The spraying range of the spray nozzle of at least one backflush spray arm covers the first filter screen 163 along the axial direction of the first filter screen 163. That is to say, the flushing area of the backflush spray arm can cover the entire first filter screen 163 along the axial direction, thereby increasing the flushing range of the first filter screen 163 to achieve effective flushing. In addition, the first filter screen 163 of the present utility model can be set to be rotatable. In this way, during the flushing process, the entire first filter screen 163 can be flushed and cleaned by the backflush spray arm.

[0042] Optionally, the backflush spray arm can include a plurality of them, and the plurality of backflush spray arms can be distributed circumferentially along the first filter screen 163. In this way, using the spray nozzles of the plurality of backflush spray arms to cover the filtration area of the first filter screen 163 can reduce the nozzle arrangement density of the backflush spray arm, facilitating the improvement of the structural strength of the backflush spray arm and the impact force of the nozzle.

[0043] In some embodiments, the flushing device 1124 communicates with the outlet of the circulation pump 12. The circulation pump 12 can be used to transport water for flushing to the flushing device 1124. The pumping action of the circulation pump 12 can be used to perform backflush cleaning of the first filter screen 163, which can simplify the structure of the slag collection and filtration device 10. Moreover, during the process of the dishwasher washing tableware, the reverse flushing of the first filter screen 163 can be simultaneously achieved, thereby improving the filtration efficiency and effect of the slag collection and filtration device 10.

[0044] Optionally, the slag collection and filtering device 10 is provided with a water diverter valve 1111 for connecting the spray arm, the outlet of the circulation pump 12 is connected to the water diverter valve 1111, the circulation pump 12 is connected to a flushing branch, one end of the flushing branch is connected to the outlet, and the other end is connected to the flushing device 1124. The structure of the slag collection and filtering device 10 can be further simplified, and the cleaning efficiency and effect of the first filter screen 163 can be improved.

[0045] In some embodiments of the utility model, the first filter screen 163 is rotatably disposed in the filter chamber 102. The rotation of the first filter screen 163 can be used to clean the surface of the filter screen to maintain the filtering performance of the first filter screen 163. In addition, in combination with the aforementioned flushing device 1124, the first filter screen 163 is covered along the axial direction of the first filter screen 163 by the aforementioned flushing device 1124, and the first filter screen 163 is rotated to fully flush the first filter screen 163, thereby improving the efficiency and effect of cleaning the surface of the first filter screen 163. In addition, the centrifugal force during the rotation of the first filter screen 163 will cause the residue attached to the surface to separate from the first filter screen 163; the relative movement between the first filter screen 163 and the water will also cause the residue attached to the surface to separate from the first filter screen 163.

[0046] In some examples, the first filter screen 163 can be set to rotate freely. In other words, the first filter screen 163 can be set to rotate under the driving action of the water flow, which can simplify the structure of the slag collection and filtering device 10 and facilitate the surface cleaning of the first filter screen 163 during the filtering process.

[0047] In other examples, such as Figures 1 to 10 The slag collection and filtering device 10 further includes a driving member 14, which is connected to the first filter screen 163 in a transmission manner and is used to drive the first filter screen 163 to rotate. That is, the driving member 14 can be used to drive the first filter screen 163 to rotate, thereby realizing the passive rotation of the first filter screen 163, so as to further improve the surface cleanliness of the first filter screen 163 and improve the filtering effect of the first filter screen 163.

[0048] Optionally, the driving member 14 is arranged side by side outside the filter cavity 102, and the slag collection filter device 10 further includes a transmission assembly 15, which is respectively connected to the driving member 14 and the first filter screen 163 for transmitting the rotational motion of the driving shaft of the driving member 14 to the first filter screen 163. The arrangement of components of the slag collection filter device 10 can be optimized, the size of the slag collection filter device 10 in the up and down direction can be reduced, and the space utilization rate of the slag collection filter device 10 can be improved.

[0049] Among them, Figure 3 and Figure 7, the transmission assembly 15 may include a first gear 151 and a second gear 152. The first gear 151 is in transmission connection with the driving member 14, the second gear 152 is in transmission connection with the first gear 151, and the second gear 152 is in transmission connection with the first filter screen 163.

[0050] The transmission assembly 15 may further include a first shaft 154. The upper end of the first filter screen 163 is provided with a first mounting hole, and the upper end of the first shaft 154 passes through the first mounting hole. A key fit or the like may be provided between the first shaft 154 and the first mounting hole to facilitate driving the first filter screen 163 to rotate by the first shaft 154. The lower end of the first shaft 154 is connected to the second gear 152. The lower end of the first shaft 154 passes through the bottom wall of the filtration chamber 102 and is provided with a bearing and an oil seal.

[0051] In some embodiments, the slag collection and filtration device 10 further includes a first flow disturbing member 1631. The first flow disturbing member 1631 is disposed in the filtration chamber 102 and is used for agitating the washing water in the filtration chamber 102. The first flow disturbing member 1631 can be used to promote the flow disturbance in the filtration chamber 102, further avoid the blockage of the first filter screen 163, and facilitate the residue to flow into the slag collection chamber 103 for the collection of the residue.

[0052] The first flow disturbing member 1631 of the present utility model may have the following implementation manners including but not limited to them and their combinations.

[0053] Embodiment 1, the first flow disturbing member 1631 is rotatably disposed in the filtration chamber 102, and the first flow disturbing member 1631 can realize the flow disturbance of the fluid in the filtration chamber 102 by rotation.

[0054] Embodiment 2, the first flow disturbing member 1631 includes a plurality of blades spaced apart along the circumferential direction, which can improve the flow disturbance effect on the fluid in the filtration chamber 102. The first flow disturbing member 1631 can be configured to rotate around the circumferential axis. In this way, during the rotation of the first flow disturbing member 1631, the plurality of blades can be used to disturb the fluid in the filtration chamber 102. Optionally, the filtration chamber 102 is provided with a rotatable first filter screen 163, and the end of the first filter screen 163 is provided with blades, which can agitate the mixture of slag and water in the filtration chamber 102 to facilitate the discharge of the residue. One end of the upper part of the first filter screen 163 is provided with blades, which can push the water to wash the side surface of the filter screen during rotation to separate the residue from the filter screen.

[0055] Embodiment 3, the first flow disturbing member 1631 is relatively stationary with respect to 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 includes a plurality of first blades spaced apart along the circumferential direction of the first filter screen 163.

[0056] In Embodiment 4, the first spoiler 1631 can also be set to be relatively stationary with respect to the filtration chamber 102. In this way, when water flows through the first spoiler 1631, vortices will be generated, and the vortices are used to disturb the water flow.

[0057] In Embodiment 5, at least a part of the first spoiler 1631 is located in the lower part of the filtration chamber 102. This can improve the spoiler effect on the fluid in the filtration chamber 102.

[0058] In Embodiment 6, the first spoiler 1631 is connected to the lower end of the first filter screen 163 and is distributed along the direction around the first filter screen 163.

[0059] In some embodiments, the first filter screen 163 is provided as a cylindrical shape, and the peripheral wall of the first filter screen 163 is used to filter the washing water. This can increase the filtration area of the first filter screen 163, so as to achieve a larger flow rate of filtration to ensure the washing efficiency of the dishwasher. Combining with the foregoing, the first filter screen 163 is rotatably provided in the filtration chamber 102 around the axis of the first filter screen 163, and the internal space of the first filter screen 163 faces the first outlet 1022.

[0060] Optionally, the filtration chamber 102 is provided with ventilation holes, and the ventilation holes communicate with the external space of the slag collection and filtration device 10 to balance the internal and external air pressures of the filtration chamber 102. Among them, the ventilation holes can be provided at the upper end of the peripheral wall of the filtration chamber 102. This can facilitate the drainage of the washing water into the filtration chamber 102, is conducive to the washing water passing through the slag collection and filtration device 10 for filtration, and effectively improves the filtration efficiency and effect.

[0061] In some embodiments, the mesh aperture of the first filter screen 163 is set to be not less than 0.1 mm and not more than 1 mm. When the first filter screen 163 is rotatable and the rotation speed is relatively high (for example, greater than 1000 rpm), the mesh aperture of the first filter screen 163 can be appropriately enlarged. Optionally, the mesh aperture of the first filter screen 163 is set to be not less than 0.6 mm and not more than 1 mm. For example, the mesh aperture of the first filter screen 163 can be set to 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 rotation speed of the first filter screen 163 is relatively low (for example, not greater than 1000 rpm), the mesh aperture of the first filter screen 163 can be appropriately reduced.

[0062] In some embodiments, such as Figures 1 to 10, an opening is provided at the upper end of the filtration chamber 102, and a filtration chamber cover 1632 is provided. The filtration chamber cover 1632 is used to open and close the filtration chamber 102, and the aforementioned first filter screen 163 is connected to the filtration chamber cover 1632. Thus, the assembly and maintenance of the centrifugation assembly can be facilitated, and the assembly efficiency of the centrifugation assembly can be improved. The rapid assembly of the filtration chamber cover 1632 can be achieved. Optionally, the filtration chamber cover 1632 is detachably connected to the filtration chamber 102. It can facilitate the rapid disassembly and assembly of the filtration chamber cover 1632, improve the stability of the centrifugation assembly, and can facilitate the viewing of the state inside the filtration chamber 102 for the cleaning of the centrifugation assembly.

[0063] Optionally, a first groove portion is provided on the circumferential surface of the filtration chamber cover 1632. The first sealing ring 1633 is arranged along the circumferential direction of the filtration chamber cover 1632 and is fitted in the first groove portion. The first sealing ring 1633 seals the gap between the filtration chamber cover 1632 and the inner circumferential surface of the filtration chamber 102. In addition, a bearing is provided on the filtration chamber cover 1632, and the upper end of the first filter screen 163 is connected to the bearing. The rotational connection between the first filter screen 163 and the filtration chamber cover 1632 is realized by means of the bearing. The upper end of the first filter screen 163 is rotatably connected to the filtration chamber cover 1632.

[0064] In some embodiments, the slag collection chamber 103 is provided with a second inlet 1031, a second outlet 1032, and a slag discharge port 1033. The second inlet 1031 communicates with the filtration chamber 102. The second outlet 1032 is used for draining water, and the slag discharge port 1033 is used for discharging slag. Among them, the second inlet 1031 can be the same port as the aforementioned slag outlet. The slag collection chamber 103 is provided with a second filter screen 164. The second inlet 1031 and the slag discharge port 1033 are arranged on one side of the second filter screen 164, and the second outlet 1032 is arranged on the other side of the second filter screen 164. Specifically, the residue and part of the water separated by the filtration chamber 102 enter the slag collection chamber 103 through the second inlet 1031; under the filtration action of the second filter screen 164, the water is sent out from the second outlet 1032 and is sent to the component for washing tableware under the driving action of the circulation pump 12; the remaining residue after filtration remains in the slag collection chamber 103 and can be discharged through the slag discharge port 1033. The slag collection chamber 103 can separate the water and residue introduced into the slag collection chamber 103. Therefore, part of the water in the filtration chamber 102 can enter the slag collection chamber 103, so that the residue in the filtration chamber 102 can be brought into the slag collection chamber 103 by the water flow for the slag collection chamber 103 to collect the residue. In addition, the water entering the slag collection chamber 103 is filtered and then sent out, which can prevent the slag-water mixture in the slag collection chamber 103 from flowing back to the filtration chamber 102. Of course, the second filter screen 164 in the present invention can also be arranged outside the slag collection chamber 103.

[0065] In some embodiments, the second filter screen 164 is rotatably disposed in the slag collection chamber 103. The rotation of the second filter screen 164 can be utilized to clean the surface of the filter screen, so as to maintain the filtering performance of the second filter screen 164. Among them, the centrifugal force during the rotation of the second filter screen 164 will cause the residues attached to the surface to separate from the second filter screen 164; the relative movement between the second filter screen 164 and water will also cause the residues attached to the surface to separate from the second filter screen 164.

[0066] In some examples, the second filter screen 164 can be set to rotate freely. That is to say, the second filter screen 164 can be set to rotate under the driving action of water flow, which can simplify the structure of the slag collection and filtering device 10, and can facilitate the cleaning of the surface of the second filter screen 164 during the filtering process.

[0067] In other examples, such as Figure 4 and Figure 7 , the slag collection and filtering device 10 may further include a driving member 14, the driving member 14 is in transmission connection with the second filter screen 164, and the driving member 14 is used to drive the second filter screen 164 to rotate. That is, the driving member 14 can be used to drive the second filter screen 164 to rotate, so as to realize the passive rotation of the second filter screen 164, further improve the surface cleanliness of the second filter screen 164, and improve the filtering effect of the second filter screen 164.

[0068] Optionally, the driving member 14 is arranged side by side outside the slag collection chamber 103, and the slag collection and filtering device 10 further includes a transmission assembly 15. The transmission assembly 15 is respectively in transmission connection with the driving member 14 and the second filter screen 164, and is used to transmit the rotational motion of the driving shaft of the driving member 14 to the second filter screen 164. The arrangement of the components of the slag collection and filtering device 10 can be optimized, the size of the slag collection and filtering device 10 in the up and down direction can be reduced, and the space utilization rate of the slag collection and filtering device 10 can be improved.

[0069] Among them, such as Figures 1 to 10 , the transmission assembly 15 may include a first gear 151 and a third gear 153. The first gear 151 is in transmission connection with the driving member 14, the third gear 153 is in transmission connection with the first gear 151, and the third gear 153 is in transmission connection with the second filter screen 164. In addition, the first filter screen 163 and the second filter screen 164 can be set to be linked. Specifically, the transmission assembly 15 may include a first gear 151, a third gear 153 and a second gear 152. Among them, the first gear 151 is in transmission connection with the driving member 14, the third gear 153 is in transmission connection with the second filter screen 164, the second gear 152 is in transmission connection with the first filter screen 163, and the first gear 151, the third gear 153 and the second gear 152 are in transmission connection.

[0070] The transmission assembly 15 may further include a second shaft 155. The upper end of the second filter screen 164 is provided with a second mounting hole, and the upper end of the second shaft 155 passes through the second mounting hole. A key fit or the like may be provided between the second shaft 155 and the second mounting hole to facilitate driving the second filter screen 164 to rotate by means of the second shaft 155. The lower end of the second shaft 155 is connected to the third gear 153. The lower end of the second shaft 155 passes through the bottom wall of the slag collection chamber 103 and is provided with a bearing and a oil seal.

[0071] In some embodiments, the slag collection and filtration device 10 further includes a second spoiler 1641. The second spoiler 1641 is disposed in the slag collection chamber 103 and is used for agitating the water and residues in the slag collection chamber 103. The second spoiler 1641 can be used to promote the turbulence in the slag collection chamber 103 to facilitate the collection of residues. When discharging the slag from the slag collection chamber 103, the second spoiler 1641 can also be used to turbulently flow the fluid in the slag collection chamber 103 so as to empty the residues in the slag collection chamber 103, facilitate the cleaning of the dishwasher, avoid the growth of bacteria, and improve the cleaning effect and safety of the dishwasher.

[0072] The second spoiler 1641 of the present utility model may have the following embodiments and their combinations including but not limited to.

[0073] Embodiment 1, the second spoiler 1641 is rotatably disposed in the slag collection chamber 103, and the second spoiler 1641 can turbulently flow the fluid in the slag collection chamber 103 by rotation.

[0074] Embodiment 2, the second spoiler 1641 includes a plurality of blades spaced apart along the circumferential direction, which can improve the turbulence effect on the fluid in the slag collection chamber 103. Further, the second spoiler 1641 can be configured to rotate around the circumferential axis. In this way, during the rotation of the second spoiler 1641, the plurality of blades can be used to turbulently flow the fluid in the slag collection chamber 103. Optionally, the slag collection chamber 103 is provided with a rotatable second filter screen 164, and blades are provided at the end of the second filter screen 164 to stir the mixture of slag and water in the slag collection chamber 103 to facilitate the discharge of residues. Blades are provided at one end of the second filter screen 164. When rotating, the water can be pushed to wash the surface of the side filter screen to separate the residues from the filter screen.

[0075] Embodiment 3, the second spoiler 1641 is relatively stationary with respect to the second filter screen 164. When the second filter screen 164 rotates, it can drive the second spoiler 1641 to rotate, thereby simplifying the driving structure of the second spoiler 1641. Optionally, the second spoiler 1641 is connected to the lower end of the second filter screen 164 and includes a plurality of second blades spaced apart along the circumferential direction of the second filter screen 164.

[0076] In Embodiment 4, the second spoiler 1641 can also be set to be relatively stationary with respect to the slag collection chamber 103. In this way, when water flows through the second spoiler 1641, eddy currents will be generated, and the water flow can be disturbed by using the eddy currents.

[0077] In Embodiment 5, at least a part of the second spoiler 1641 is located in the lower part of the slag collection chamber 103, which can improve the spoiler effect on the fluid in the slag collection chamber 103.

[0078] In Embodiment 6, the second spoiler 1641 is connected to the lower end of the second filter screen 164 and is distributed along the direction around the second filter screen 164.

[0079] In some embodiments, the second filter screen 164 is provided in a cylindrical shape. The peripheral wall of the second filter screen 164 is used for filtering. The inner space of the second filter screen 164 communicates with the second outlet 1032, and the outer space of the second filter screen 164 communicates with the second inlet 1031 and the slag discharge port 1033. The filtering area of the second filter screen 164 can be increased, so as to achieve a larger flow rate of filtration, ensuring the washing efficiency of the dishwasher. Combining the foregoing, the second filter screen 164 is rotatably provided in the slag collection chamber 103 around the axis of the second filter screen 164, and the inner space of the second filter screen 164 faces the second outlet 1032.

[0080] Optionally, the second inlet 1031 is higher than the inner bottom surface of the filtering chamber 102, which can prevent the fluid in the filtering chamber 102 from flowing into the slag collection chamber 103 without resistance. Most of the washing water will be filtered in the filtering chamber 102, and the amount of washing water flowing into the slag collection chamber 103 is small, reducing the impact on the residues in the slag collection chamber 103. In addition, it can also prevent the residues in the slag collection chamber 103 from flowing back. In addition, when the slag collection and filtration device 10 is filtering, other positions of the slag collection chamber 103 except the second inlet 1031 and the second outlet 1032 are closed, which can facilitate the formation of a relatively high-pressure environment in the slag collection chamber 103 to reduce the water flowing into the slag collection chamber 103, enabling the residues to remain in the slag collection chamber 103 and improving the filtering efficiency and effect of the slag collection and filtration device 10.

[0081] In some embodiments, the mesh aperture of the second filter screen 164 is set to be not less than 0.1 mm and not more than 1 mm. When the second filter screen 164 is rotatable and the rotation speed is relatively high (for example, greater than 1000 rpm), the mesh aperture of the second filter screen 164 can be appropriately enlarged. Optionally, the mesh aperture of the second filter screen 164 is set to be not less than 0.6 mm and not more than 1 mm. For example, the mesh aperture of the second filter screen 164 can be set to 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 rotation speed of the second filter screen 164 is relatively low (for example, not greater than 1000 rpm), the mesh aperture of the second filter screen 164 can be appropriately reduced.

[0082] In some embodiments, the inner bottom surface of the slag collection chamber 103 is provided as an inclined surface that gradually slopes downward in the direction from the filtration chamber 102 to the slag discharge port 1033, so as to facilitate the flow of residues or water that enter the slag collection chamber 103 towards the slag discharge port 1033, facilitate the smooth slag discharge at the slag discharge port 1033, and avoid the growth of bacteria due to the retention of residues in the slag collection chamber 103. Optionally, the lower end of the second filter screen 164 is higher than the inner bottom surface of the slag collection chamber 103, so as to avoid the residues retained in the slag collection chamber 103 from adhering to the surface of the second filter screen 164 and improve the filtration performance of the second filter screen 164. Optionally, a boss is provided on the inner bottom surface of the slag collection chamber 103, the second outlet 1032 is provided on the top surface of the boss, and the second filter screen 164 is provided on the boss. This can improve the filtration performance of the second filter screen 164 and can use the boss to provide support for the second filter screen 164 to maintain the stability of the second filter screen 164.

[0083] In some embodiments, a one-way valve 17 is provided at the slag discharge port 1033, and the one-way valve 17 is configured to unidirectionally open the slag discharge port 1033 along the slag discharge direction of the slag collection chamber 103. Additionally, the slag discharge port 1033 can be connected to 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 slag collection chamber 103 is relatively low, so the one-way valve 17 is in a closed state; during the slag discharge process, the drainage pump 13 operates, the air pressure at the inlet of the drainage pump 13 is relatively low, and the air pressure in the slag collection chamber 103 is relatively high, so the one-way valve 17 is in an open state to facilitate the discharge of residues in the slag collection chamber 103.

[0084] The aforementioned one-way valve 17 can include a cover plate, a rubber cover, a bracket, and a sealing ring, etc., mainly realizing the opening and closing functions of the slag discharge port 1033. The bracket can be used as a support, assembled with the slag discharge port 1033 and sealed through the sealing ring. The bracket can be provided with an opening, the rubber cover can be connected to the bracket and set to be rotatable for opening and closing the opening, and a cover plate is provided on the part of the rubber cover opposite to the opening to provide support for the rubber cover to improve the sealing effect when the rubber cover closes the opening. The one-way valve 17 is used to realize the opening and closing of the slag discharge port 1033.

[0085] In some embodiments, such as Figure 10 , an opening is provided at the upper end of the slag collection chamber 103, and a slag collection chamber cover 1642 is provided at the upper end of the slag collection chamber 103 for opening and closing the slag collection chamber 103. This can facilitate the assembly and maintenance of the slag collection and filtration device 10 and improve the assembly efficiency of the slag collection and filtration device 10.

[0086] Among them, the second filter screen 164 is connected to the slag collection chamber cover 1642, enabling the quick assembly of the slag collection chamber cover 1642 and the second filter screen 164. Optionally, the slag collection chamber cover 1642 is detachably connected to the slag collection chamber 103. This can facilitate the quick disassembly and assembly of the slag collection chamber cover 1642, improve the stability of the slag collection and filtration device 10, and enable easy viewing of the state inside the slag collection chamber 103 for the cleaning of the slag collection and filtration device 10.

[0087] Optionally, a second groove portion is provided on the peripheral surface of the slag collection chamber cover 1642. The second sealing ring 1643 is arranged along the circumferential direction of the slag collection chamber cover 1642 and fits into the groove portion. The second sealing ring 1643 seals the gap between the slag collection chamber cover 1642 and the inner peripheral surface of the slag collection chamber 103. In addition, a bearing is provided on the slag collection chamber cover 1642, and the upper end of the second filter screen 164 is connected to the bearing, realizing the rotational connection between the second filter screen 164 and the slag collection chamber cover 1642 by means of the bearing. The upper end of the second filter screen 164 is rotatably connected to the slag collection chamber cover 1642, and the lower end of the second filter screen 164 is rotatably connected to the bottom wall of the slag collection chamber 103. The upper end of the second filter screen 164 is rotatably connected to the slag collection chamber cover 1642.

[0088] Optionally, the filtration chamber 102 and the slag collection chamber 103 are arranged side by side. This can facilitate filtration and slag collection, simplify the structure of the slag collection and filtration device 10, and improve the filtration effect and filtration efficiency of the slag collection and filtration device 10.

[0089] In some embodiments, the slag collection and filtration device 10 includes a water cup 11, and the filtration chamber 102 and the slag collection chamber 103 are arranged in the water cup 11. This can improve the integration degree of the slag collection and filtration device 10, simplify the slag collection and filtration device 10, and improve the stability of the dishwasher. Of course, the filtration chamber 102 and the slag collection chamber 103 in the present utility model can also be set as a split structure.

[0090] Optionally, the water cup 11 includes a cup body 111 and a flow channel plate 112. The filtration chamber 102 and the slag collection chamber 103 are arranged in the cup body 111 and extend in the up and down direction. The flow channel plate 112 is connected to the lower end of the cup body 111. The flow channel plate 112 is provided with a first outlet 1022, a second outlet 1032, and a pump flow channel 1121. The first outlet 1022 communicates with the filtration chamber 102, the second outlet 1032 communicates with the slag collection chamber 103, and the pump flow channel 1121 communicates the first outlet 1022 and the second outlet 1032. The pump flow channel 1121 is used to connect the circulation pump 12 of the dishwasher. Among them, the first outlet 1022 can be the first outlet 1022 of the filtration chamber 102 as described above, and the second outlet 1032 can be the second outlet 1032 of the slag collection chamber 103 as described above. During use, the pump flow channel 1121 communicates with the circulation pump 12, and the circulation pump 12 can create a negative pressure downstream of the first filter screen 163 and downstream of the second filter screen 164, facilitating the flow of the washing water to the pump flow channel 1121 and the use of the slag collection and filtration device 10.

[0091] In addition, the flow channel plate 112 can serve as the bottom wall of the filter chamber 102 and the slag collection chamber 103, and is used to position the first filter screen 163 and the second filter screen 164. In addition, a flushing flow channel is also provided in the flow channel plate 112, and the flushing flow channel is connected to the flushing device 1124 and is used to connect the circulation pump 12. A gear cavity is also provided in the flow channel plate 112, and the aforementioned transmission assembly 15 is provided in the gear cavity. Specifically, the aforementioned first gear 151, the second gear 152 and the third gear 153 are provided in the gear cavity.

[0092] The water cup 11 may include a filter chamber 102, a slag collecting chamber 103, a drainage chamber 104, and a diversion chamber, etc. The water cup 11 mainly realizes the functions of return water collection, backwash filtering, slag collection, spray arm flow channel switching, drainage and slag removal, etc.

[0093] In some embodiments, the slag collection component further includes: a plane filter 161, the plane filter 161 has an opening, and the plane filter 161 is set to be inclined downward from the periphery to the opening; and a filter cup 162, the filter cup 162 is inserted into the opening. The plane filter 161 can be used to filter the washing water once, further improving the filtering effect of the washing water. In addition, the filter cup 162 can retain larger residues, and the slag collection component can be cleaned by removing the filter.

[0094] The filter screens (the first filter screen 163 and / or the second filter screen 164) in the present invention can be designed as an easy-to-assemble and disassemble structure, and can be taken out from the inside of the cleaning chamber, which is convenient for later maintenance.

[0095] The utility model also provides a dishwasher, comprising the above-mentioned residue collection and filtering device 10.

[0096] The slag collection and filtering device 10 of the utility model may include a filter chamber 102, a slag collection chamber 103, a circulation pump 12, a drainage pump 13, a water diversion valve 1111 and other modules. It has a multi-stage filtering function. The multi-stage filtering is mainly performed by using a flat filter 161, a filter cup 162, a first filter 163, a second filter 164, a circulation pump 12, a driving member 14, a transmission assembly 15 and the like. In addition, the slag collection and filtering device 10 may also include a water collection chamber 101 for collecting washing water and sending the washing water to the filter chamber 102.

[0097] Specifically, the primary filtration system includes a plane filter 161 and a filter cup 162. During the washing process, after the water rinses the surface of the tableware, the water brings the residue to the bottom of the washing chamber, flows through the plane filter 161, and the residue smaller than the aperture size of the plane filter 161 (the aperture size of the plane filter 161 is 0.5 to 2 mm) enters the filter chamber 102. The residue larger than the aperture size of the plane filter 161 enters the filter cup 162.

[0098] The filter cup 162 has two pore sizes. The pore size on the side of the filter cup 162 is small, which can be set to 0.5 - 3 mm. The pore size at the bottom of the filter cup 162 is large, which can be set to 5 - 10 mm. Residues larger than the pore size at the bottom of the filter cup 162 need to be manually cleaned. Residues smaller than the pore size at the bottom of the filter cup 162 but larger than the pore size on the side are discharged through the drainage pump 13 during drainage. Residues smaller than the pore size on the side of the filter cup 162 enter the filtration chamber 102. The primary filtration realizes the filtration of residues larger than 3 mm.

[0099] The secondary filtration system is composed of the first filter screen 163, the second filter screen 164, etc. The pore sizes of the first filter screen 163 and the second filter screen 164 can be the same or different. The water and residues entering the filtration chamber 102 are filtered by the first filter screen 163. Tiny particles smaller than the first filter screen 163 can pass through the filter screen and enter the circulation pump 12 together with the water. Residues larger than the first filter screen 163 (with a size of 0.1 - 3 mm) enter the slag collection chamber 103. During drainage, the residues in the slag collection chamber 103 are discharged through the drainage pump 13.

[0100] The first filter screen 163 and the second filter screen 164 of the secondary filtration are driven to rotate by the driving member 14 and the transmission assembly 15. Under the action of centrifugal force, the residues are separated from the filter screen.

[0101] Among them, the first filter screen 163 and / or the second filter screen 164 in the present utility model can be set to be rotatable to utilize centrifugal separation.

[0102] Specifically, the water after primary filtration enters the filtration chamber 102. The first filter screen 163 rotates at a high speed driven by a driving member 14 (such as a motor). Through the high-speed rotation of the first filter screen 163, the separation of pollutants attached to the outer surface of the first filter screen 163 from the filter screen is realized, so that the first filter screen 163 has better water permeability. The first filter screen 163 is provided with first blades. The rotating first blades push the water to wash the surface of the first filter screen 163, accelerating the separation of the residue from the filter screen and making the cleaning of the filter screen more thorough. In addition, the first inlet 1021 is arranged on the circumferential surface of the filtration chamber 102, the first outlet 1022 is arranged on the bottom surface of the filtration chamber 102, and the slag outlet is arranged on the circumferential surface of the filtration chamber 102. When the circulation pump 12 works, the water is sucked from the filtration chamber 102 into the pump chamber of the circulation pump 12. A low-pressure area is formed at the first outlet 1022, the outer side of the filter screen of the filtration chamber 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 will enter the second outlet 1032 through the slag collection chamber 103. The pollutants outside the first filter screen 163 are pushed along with the water flow towards the second inlet 1031 and enter the slag collection chamber 103 through the second inlet 1031. Since the water flow in the slag collection chamber 103 is relatively slow and a second filter screen 164 is arranged at the second outlet 1032, the pollutants are collected in the slag collection chamber 103, realizing the residue collection function and separating the pollutants from the circulating water. Therefore, the water for cleaning tableware is always clean water, avoiding secondary pollution of the tableware. In addition, the present utility model also sets up a cleaning module to clean the first filter screen 163, and realizes the cleaning of the first filter screen 163 through the microfiltration function of the circulating water and the function of centrifugally cleaning the filter screen.

[0103] In addition, during the cleaning process, the water after primary filtration enters the slag collection chamber 103 from the second inlet 1031 through the filtration chamber 102. The residue is collected in the slag collection chamber 103 and separated from the main circulating water, realizing the separation of slag and water. To solve the problem of residue clogging the second filter screen 164, the bottom of the second filter screen 164 is provided with second blades. The second filter screen 164 is driven by a motor to rotate, and the second blades drive the water flow to wash the surface of the filter screen, separating the residue from the surface of the filter screen. When draining water, the second filter screen 164 rotates, and the second flow disturbing member 1641 stirs the water movement in the slag collection chamber 103, making the residue and water move in a mixed manner, and the residue is discharged through the slag discharge port 1033 of the slag collection chamber 103. The slag collection chamber 103 can realize functions such as residue collection and separation of slag and water.

[0104] The slag collection and filtration device 10 of the present utility model can separate the residue from the circulating water, realize cleaning with clean water, and avoid secondary pollution; the centrifugal separation can automatically clean the filter screen, and the filter screen does not need to be maintained by humans; it can ensure the stable water output of the water pump and improve the working efficiency of the water pump; it can make the residue easier to discharge after aggregation. All filter screens can be conveniently taken out for easy maintenance.

[0105] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by 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", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0106] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0107] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0108] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0109] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", 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 utility model. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0110] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A slag collection and filtration device (10) for a dishwasher, characterized in that, The residue collection and filtering device (10) comprises a filter chamber (102) and a residue collection chamber (103); the filter chamber (102) is used to allow washing water to flow in and separate the residue and water in the washing water; the residue collection chamber (103) is connected to the filter chamber (102) and collects the residue separated by the filter chamber (102).

2. The slag collection and filtration device (10) according to claim 1, characterized in that, The filter chamber (102) is provided with a first inlet (1021) for introducing washing water, a first outlet (1022) for discharging separated water, and a slag outlet connected to the slag collecting chamber (103); the filter chamber (102) is provided with a first filter screen (163); the first inlet (1021) and the slag outlet are provided on one side of the first filter screen (163); and the first outlet (1022) is provided on the other side of the first filter screen (163).

3. The slag collecting and filtering device (10) according to claim 2, characterized in that, The slag collection and filtering device (10) further comprises a flushing device (1124), wherein the flushing device (1124) is configured to spray water toward the first filter screen (163) to flush the first filter screen (163).

4. The slag collection and filtration device (10) according to claim 3, characterized in that, The first filter screen (163) is configured to be cylindrical, and the peripheral wall of the first filter screen (163) is used to separate the residue and water in the washing water. The flushing device (1124) includes at least one backwash spray arm disposed on the inner side of the first filter screen (163) and spraying water toward the peripheral wall of the first filter screen (163).

5. The slag collecting and filtering device (10) according to claim 2, wherein The first filter screen (163) is rotatably disposed in the filter chamber (102). Wherein, the first filter screen (163) is configured to rotate freely; or, the slag collection and filtering device (10) further comprises a driving member (14), the driving member (14) is transmission-connected to the first filter screen (163), and the driving member (14) is used to drive the first filter screen (163) to rotate.

6. The slag collecting and filtering device (10) according to claim 2 or 5, characterized in that, The slag collection and filtering device (10) further comprises a first spoiler (1631), the first spoiler (1631) being connected to the lower end of the first filter screen (163) and comprising a plurality of first blades spaced apart along the circumference of the first filter screen (163); and / or the upper end of the filter chamber (102) has an opening and is provided with a filter chamber cover (1632) for opening and closing the filter chamber (102), and the first filter screen (163) is connected to the filter chamber cover (1632).

7. The slag collecting and filtering device (10) according to claim 1, characterized in that, The slag collecting chamber (103) is provided with a second inlet (1031) connected to the filter chamber (102), a second outlet (1032) for draining water, and a slag discharge port (1033) for discharging slag. The slag collecting chamber (103) is provided with a second filter screen (164). The second inlet (1031) and the slag discharge port (1033) are arranged on one side of the second filter screen (164), and the second outlet (1032) is arranged on the other side of the second filter screen (164).

8. The slag collecting and filtering device (10) according to claim 7, characterized in that, The second filter screen (164) is rotatably disposed in the slag collecting chamber (103). Wherein, the second filter screen (164) is set to rotate freely; or, the slag collection and filtration device (10) further includes a driving member (14), the driving member (14) is in transmission connection with the second filter screen (164), and the driving member (14) is used to drive the second filter screen (164) to rotate.

9. The slag collecting and filtering device (10) according to claim 7 or 8, characterized in that, The slag collection and filtration device (10) further includes a second flow disturbing member (1641), the second flow disturbing member (1641) is connected to the lower end of the second filter screen (164), and includes a plurality of second blades distributed at intervals along the circumferential direction of the second filter screen (164); and / or, the upper end of the slag collection chamber (103) has an opening, and a slag collection chamber cover (1642) is provided for opening and closing the slag collection chamber (103), and the second filter screen (164) is connected to the slag collection chamber cover (1642); and / or, the second inlet (1031) is higher than the inner bottom surface of the filtration chamber (102).

10. The slag collecting and filtering device (10) according to claim 7, characterized in that, A one-way valve (17) is provided at the slag discharge port (1033), and the one-way valve (17) is configured to be unidirectionally openable along the slag discharge direction of the slag collection chamber (103); and / or, when the slag collection and filtration device (10) is filtering, other positions of the slag collection chamber (103) except the second inlet (1031) and the second outlet (1032) are closed.

11. The slag collection and filtration device (10) according to claim 1, characterized in that, The filtration chamber (102) is provided with a ventilation hole, and the ventilation hole communicates with the external space of the slag collection and filtration device (10) to balance the internal and external air pressures of the filtration chamber (102); and / or, the filtration chamber (102) and the slag collection chamber (103) are arranged side by side.

12. The slag collecting and filtering device (10) according to claim 1, characterized in that, The slag collection and filtration device (10) includes a water cup (11), and the filtration chamber (102) and the slag collection chamber (103) are arranged in the water cup (11).

13. The slag collecting and filtering device (10) according to claim 12, characterized in that, The water cup (11) includes a cup body (111) and a flow channel plate (112), the filtration chamber (102) and the slag collection chamber (103) are arranged in the cup body (111) and extend in the up and down direction, the flow channel plate (112) is connected to the lower end of the cup body (111), the flow channel plate (112) is provided with a first outlet (1022), a second outlet (1032) and a pump flow channel (1121), the first outlet (1022) communicates with the filtration chamber (102), the second outlet (1032) communicates with the slag collection chamber (103), the pump flow channel (1121) communicates with the first outlet (1022) and the second outlet (1032), and the pump flow channel (1121) is used to connect the circulation pump (12) of the dishwasher.

14. A dishwasher, characterized in that, Including the slag collection and filtration device (10) according to any one of claims 1-13.

Images