Filter system and dishwasher

Abstract

The application relates to the technical field of dishwashers, and provides a filtering system and a dishwasher. The filtering system comprises a shell provided with a first chamber, a second chamber and a channel communicated with the bottom of the first chamber and the bottom of the second chamber; a crushing assembly arranged in the first chamber and adapted to crush a water residue mixture entering the first chamber; a filtering assembly rotatably arranged in the second chamber, and the opening of the filtering assembly faces downward to the channel; a first suction member communicated with the second chamber to suck the crushed water residue mixture into the filtering assembly through the channel; and a second suction member communicated with the first chamber, which is adapted to suck out residues in the first chamber and / or the second chamber through the channel in the case that the first suction member is stopped. The application can effectively separate the water residue mixture, realize automatic treatment of the residues, avoid manual treatment of the residues, and improve the use experience of users.

Description

Technical Field

[0001] This application relates to the field of dishwasher technology, and more particularly to filtration systems and dishwashers. Background Technology

[0002] Currently, dishwasher filtration systems generally include a water cup and a filter installed inside the water cup. The water and food residue mixture generated during the dishwasher washing process, namely the water to be filtered and the food residue, enters the filter through the feed inlet at the top of the water cup for filtration. The filtered water enters the water path of the water cup, and the residue is collected in the filter.

[0003] However, the aforementioned filtration system has the following technical problems: Before washing, users need to remove large particles or lumps of food residue from the dishes; otherwise, the filter may become clogged, affecting the normal operation of the dishwasher. Furthermore, after washing, users need to remove the filter and clean the residue promptly; otherwise, bacteria may grow and unpleasant odors may develop. Therefore, the current filtration system requires manual removal of residue during use, severely impacting the user experience. Summary of the Invention

[0004] This application aims to address at least one of the technical problems existing in the related art. To this end, this application provides a filtration system that can effectively separate water-sludge mixtures and automate the treatment of residues, avoiding manual residue handling and improving the user experience.

[0005] This application also provides a dishwasher.

[0006] A first aspect of this application provides a filtration system, comprising: a housing having a first chamber, a second chamber, and a channel communicating with the bottom of the first chamber and the bottom of the second chamber; a pulverizing assembly disposed in the first chamber and adapted to pulverize a water-sludge mixture entering the first chamber; a filtering assembly rotatably disposed in the second chamber, with the opening of the filtering assembly facing downward toward the channel; a first suction member communicating with the second chamber to draw the pulverized water-sludge mixture into the filtering assembly through the channel; and a second suction member communicating with the first chamber, adapted to draw out residue from the first chamber and / or the second chamber through the channel when the first suction member is stopped.

[0007] According to the filtration system of this application embodiment, the mixture of residue and water to be filtered enters the first chamber. The residue is automatically crushed to a suitable discharge size by a crushing component, preventing blockage of subsequent channels and the filtration component, thus ensuring the normal operation of the first and second suction components. The crushed residue and water to be filtered are then drawn into the filtration component in the second chamber through a bottom channel by the first suction component for filtration. During filtration, the rotation of the filtration component generates centrifugal force, which causes the residue drawn into the filtration component to adhere to it and not fall off. The filtered water is discharged through the second chamber. After filtration, the first suction component stops, and the residue falls to the bottom channel under gravity and the suction force of the second suction component, where it is then drawn out and discharged by the second suction component. Therefore, the filtration system of this application can effectively separate water-sludge mixtures, achieving automated residue processing without manual handling, thus improving the user experience. Furthermore, the filtration process and the sludge discharge process share the same channel, eliminating the need for a separate sludge discharge channel structure and optimizing the internal structure of the entire filtration system.

[0008] According to one embodiment of this application, the filtration assembly includes a first filter screen and a cleaning device disposed within the first filter screen. The cleaning device is adapted to rotate relative to the first filter screen to scrape off a portion of the residue of the water-sludge mixture on the first filter screen, thereby forming an outlet area on the first filter screen that communicates with the second chamber.

[0009] According to one embodiment of this application, the cleaning device includes: a mounting bracket rotatably disposed within the first filter screen; and a contact portion connected to the mounting bracket and in contact with the inner wall of the first filter screen to form the water outlet area.

[0010] According to one embodiment of this application, the outer wall of the first filter screen and the inner wall of the second chamber are spaced apart to form a return water chamber, the first suction member is connected to the return water chamber, and the return water chamber is adapted to communicate with the interior of the first filter screen through the water outlet area.

[0011] According to one embodiment of this application, the pulverizing assembly includes a pulverizing device comprising: two sets of roller cutters arranged opposite each other, each roller cutter including a rotating shaft and a plurality of toothed blades sleeved on the rotating shaft, the toothed blades of the two sets of roller cutters being arranged alternately to form a first pulverizing area between the two sets of roller cutters.

[0012] According to one embodiment of this application, the pulverizing device further includes: a partition plate corresponding to at least one set of the roller cutters and staggered with the toothed blades, wherein the partition plate extends from the side of the toothed blades to the bottom of the toothed blades and forms a second pulverizing area between the bottom of the toothed blades and the bottom of the toothed blades.

[0013] According to one embodiment of this application, the partition includes a support portion and a limiting portion connected together; the support portion is located at the bottom of the toothed plate and engages with the toothed plate to form the second crushing area; the limiting portion is located on the side of the toothed plate and is provided with a limiting groove that cooperates with the rotating shaft.

[0014] According to one embodiment of this application, the spacer includes two sets, which are respectively arranged corresponding to the two sets of hobs. The two sets of support portions are arranged alternately. The support portion is provided with a tooth groove. The cutting teeth of the first set of toothed plates mesh with the tooth groove of the second set of support portions, and the cutting teeth of the second set of toothed plates mesh with the tooth groove of the first set of support portions.

[0015] According to one embodiment of this application, the pulverizing device further includes a housing, the bottom of which communicates with the channel, the roller cutter and the partition are disposed inside the housing, a feed inlet communicating with the first pulverizing area is formed on the housing, and a drainage channel communicating with the feed inlet is formed between the side wall of the housing and the roller cutter.

[0016] According to one embodiment of this application, the pulverizing assembly further includes a filtering device, the filtering device comprising: a filter hopper disposed between the feed inlet and the first pulverizing area, the side wall of the filter hopper having a through hole communicating with the drainage channel.

[0017] According to one embodiment of this application, the filtration device further includes: a blocking component disposed on the outside of the filter bucket and located upstream of the drainage channel and corresponding to the through hole. The blocking component includes a first blocking member and a second blocking member disposed at intervals. In a plane perpendicular to the axial direction of the through hole, the orthographic projection of the first blocking member and the orthographic projection of the second blocking member partially overlap. A water storage cavity is formed between the outside of the filter bucket and the first blocking member. A flow passage communicating with the water storage cavity is formed between the first blocking member and the second blocking member. The flow passage is connected to the drainage channel.

[0018] According to one embodiment of this application, the first blocking member is disposed on the top of the housing and extends from the bottom of the filter hopper toward the top of the filter hopper; the second blocking member is disposed on the side of the first blocking member opposite to the filter hopper, and the top of the second blocking member is connected to the filter hopper and extends toward the bottom of the filter hopper.

[0019] According to one embodiment of this application, the pulverizing assembly further includes a filtering device, the filtering device comprising:

[0020] A filter bucket is disposed in the first chamber, and the side wall of the filter bucket is provided with a through hole communicating with the first chamber.

[0021] According to one embodiment of this application, the filtration device further includes a blocking component disposed on the outside of the filter bucket and corresponding to the through hole. The blocking component includes a first blocking member and a second blocking member disposed at intervals. In a plane perpendicular to the axial direction of the through hole, the orthographic projection of the first blocking member and the orthographic projection of the second blocking member partially overlap. A water storage cavity is formed between the outside of the filter bucket and the first blocking member. A flow passage is formed between the first blocking member and the second blocking member and communicates with the water storage cavity. The flow passage communicates with the first chamber.

[0022] According to one embodiment of this application, a filter support is further included, which is installed on the housing, and the filter support is provided with a first opening corresponding to the pulverizing component and a second opening corresponding to the filtering component, wherein a second filter is provided at the second opening.

[0023] According to one embodiment of this application, the filter support is inclined toward the housing from the edge of the filter support toward the first opening.

[0024] According to one embodiment of this application, the filter support is provided with a spray arm interface, which is connected to the first suction member.

[0025] A second aspect of this application provides a dishwasher, including: an inner tub and the above-described filtration system, wherein the filtration system is disposed in the inner tub.

[0026] According to the dishwasher embodiments of this application, by setting the filtration system inside the inner tub, the water to be filtered and the food residue generated during the dishwasher washing process enter the first chamber. The residue is automatically pulverized to a suitable discharge size by the pulverizing component, avoiding clogging of subsequent channels and the filtration component, thereby ensuring the normal operation of the first suction component and the second suction component. The pulverized residue and water to be filtered are sucked into the filtration component in the second chamber through the bottom channel by the first suction component for filtration. During the filtration process, the rotation of the filtration component generates centrifugal force. Under the action of centrifugal force, the residue sucked into the filtration component can adhere to the filtration component and not fall off. The filtered water is discharged through the second chamber. After filtration is completed, the first suction component stops, and the residue falls to the bottom channel under the force of gravity and the suction force of the second suction component, and is then sucked out and discharged by the second suction component. Therefore, the filtration system of this application can effectively separate water and slag mixtures, realize the automated treatment of residues, eliminate the need for manual treatment of residues, and improve the user experience; thus realizing the maintenance-free function of the dishwasher; and the washing and filtration process and the slag discharge process of this application share the same channel, eliminating the need for a separate slag discharge channel structure, and optimizing the internal structure of the entire filtration system.

[0027] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the filtering system provided in an embodiment of this application from one perspective;

[0030] Figure 2 This is a structural schematic diagram of the filtering system provided in the embodiments of this application from another perspective;

[0031] Figure 3 This is a top view of the filtering system provided in the embodiments of this application;

[0032] Figure 4 yes Figure 3 Sectional view along axis AA;

[0033] Figure 5 yes Figure 4 A magnified view of section B;

[0034] Figure 6 This is a schematic diagram of the pulverizing device provided in an embodiment of this application from one perspective;

[0035] Figure 7 This is a structural schematic diagram of the pulverizing device provided in the embodiments of this application from another perspective;

[0036] Figure 8 This is a side view of the pulverizing device provided in the embodiment of this application;

[0037] Figure 9 yes Figure 8 A magnified view of a portion at point C;

[0038] Figure 10 This is a schematic diagram of the structure of the hob provided in the embodiment of this application;

[0039] Figure 11 yes Figure 10 A magnified view of a portion at point D;

[0040] Figure 12 This is a schematic diagram of the internal structure of the gearbox provided in an embodiment of this application;

[0041] Figure 13This is a top view of a filter bucket provided in one embodiment of this application;

[0042] Figure 14 This is a schematic diagram of the structure of a filter bucket provided in one embodiment of this application;

[0043] Figure 15 This is a schematic diagram of the structure of a filter bucket provided in another embodiment of this application;

[0044] Figure 16 yes Figure 15 Sectional view at EE;

[0045] Figure 17 This is a schematic diagram simulating the insertion of a toothpick into the through hole of the filter according to an embodiment of this application;

[0046] Figure 18 This is a schematic diagram of the structure of the filtering component provided in an embodiment of this application from one perspective;

[0047] Figure 19 This is a structural schematic diagram of the filtering component provided in another embodiment of this application;

[0048] Figure 20 This is an assembly diagram of the filtering component provided in the embodiments of this application;

[0049] Figure 21 This is a schematic diagram of the structure of the first filter screen provided in an embodiment of this application;

[0050] Figure 22 This is a schematic diagram of the cleaning device provided in the embodiments of this application;

[0051] Figure 23 This is a schematic diagram of the structure of the filter support provided in the embodiment of this application;

[0052] Figure 24 This is a schematic diagram of the filtration process of the filtration system provided in the embodiments of this application;

[0053] Figure 25 This is a schematic diagram of the slag discharge process of the filtration system provided in the embodiments of this application.

[0054] Figure label:

[0055] 1: Housing; 2: Channel; 3: Crushing assembly; 4: First suction component; 5: First filter screen;

[0056] 501: Filter frame; 502: Filter body; 503: Connecting bracket; 504: Connecting hole;

[0057] 6: Cleaning device; 601: Mounting bracket; 6011: Connecting part; 6012: Frame body;

[0058] 602: Contact part; 7: Return water chamber; 701: Water outlet; 8: Water outlet pipe; 9: Support part;

[0059] 10: Hob; 1001: Shaft; 1002: Gear plate; 1003: Cutting tooth; 11: Spacer plate;

[0060] 1101: Support part; 1102: Limiting part; 1103: Limiting groove; 1104: Tooth groove; 1105: Mounting part;

[0061] 1106: First mounting hole; 1107: Second mounting hole; 12: Partition plate; 1201: Third mounting hole;

[0062] 13: Drive motor; 14: Gearbox; 141: First drive shaft; 142: Second drive shaft;

[0063] 143: First gear; 144: Second gear; 145: Third gear; 146: Fourth gear;

[0064] 147: Fifth gear; 15: Machine casing; 1501: Feed inlet; 16: Drainage channel; 17: Filter hopper;

[0065] 1701: Through hole; 1702: Filter channel; 1703: Discharge port; 18: First blocking element;

[0066] 19: Second blocking component; 20: Water storage chamber; 21: Flow channel; 22: Stepped section; 23: Filter screen support;

[0067] 24: Second filter screen; 25: Spray arm interface; 26: Return water pipe; 27: Sludge discharge pipe;

[0068] 28: First opening; 29: Second opening. Detailed Implementation

[0069] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0070] In the description of the embodiments of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0071] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0072] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0073] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0074] The filtering system of the first aspect of this application is described below with reference to the accompanying drawings.

[0075] Combination Figures 1-25As shown, the filtration system of the first aspect of this application mainly includes: a housing 1, a pulverizing component 3, a filtering component, a first suction component 4, and a second suction component (not shown in the figure). The housing 1 contains a first chamber and a second chamber arranged side-by-side. The top of the first chamber has an inlet for the water-sludge mixture, facilitating its entry. The bottoms of the first and second chambers are interconnected via a channel 2, allowing the water-sludge mixture pulverized by the pulverizing component 3 to pass through. In this embodiment, by placing the channel 2 at the bottom of the first and second chambers, when the filtration system is in the filtration process, the first suction component 4 can easily draw the pulverized water-sludge mixture into the filtering component in the second chamber through the bottom channel 2 for filtration. When the filtration system is in the sludge discharge process, the second suction component can easily draw the filtered residue out again through the bottom channel 2 for discharge.

[0076] The pulverizing component 3 is disposed within the first chamber and is adapted to pulverize the residue in the water-slag mixture entering the first chamber. The pulverizing component 3 automatically pulverizes the residue in the water-slag mixture to a suitable discharge size, preventing blockage of the channel 2 and the filter assembly, thereby ensuring the normal operation of the first suction component 4 and the second suction component. The specific type of the pulverizing component 3 in this embodiment is not particularly limited, as long as it can pulverize the residue. For example, a fan-blade-like rotating blade or a roller cutter structure can be used.

[0077] The filter assembly is rotatably mounted in the second chamber, with its opening facing downwards toward the channel 2, so that when the first suction member 4 suctions, the crushed water-sludge mixture is drawn into the filter assembly through the bottom channel 2 for filtration.

[0078] The first suction element 4 is disposed on the housing 1 and communicates with the second chamber to draw the crushed water-sludge mixture into the filter assembly in the second chamber through the bottom channel 2 for filtration. The specific type of the first suction element 4 in this embodiment is not particularly limited, as long as it can perform the function of suctioning the water-sludge mixture; for example, a water pump can be used.

[0079] The second suction member is disposed on the housing 1 and communicates with the first chamber. When the first suction member 4 is stopped, that is, after filtration is completed, the second suction member is adapted to suck out the residue in the first chamber and / or the second chamber through the channel 2 for discharge.

[0080] The specific type of the second suction component in this embodiment is not particularly limited, as long as it can perform the function of suctioning residue, such as a slag discharge pump. Furthermore, the second suction component and the first suction component 4 are respectively connected to the two ends of the channel 2 to avoid interference between the filtration process and the slag discharge process.

[0081] According to the filtration system of this application embodiment, the mixture of residue and water to be filtered enters the first chamber. The residue is automatically crushed to a suitable discharge size by the crushing component 3, preventing blockage of the subsequent channel 2 and the filter component, thus ensuring the normal operation of the first suction component 4 and the second suction component. The crushed residue and water to be filtered are sucked into the filter component in the second chamber through the bottom channel 2 by the first suction component 4 for filtration. During the filtration process, the rotation of the filter component generates centrifugal force. Under the action of centrifugal force, the residue sucked into the filter component adheres to the filter component and does not fall off. The filtered water is discharged through the second chamber. After filtration is completed, the first suction component 4 stops, and the residue falls to the bottom channel 2 under gravity and the suction force of the second suction component, and is then sucked out and discharged by the second suction component. Therefore, the filtration system of this application can effectively separate the water-sludge mixture, realize automated residue treatment, eliminate the need for manual residue handling, and improve the user experience. Furthermore, the filtration process and the residue discharge process share the same channel 2, eliminating the need for a separate residue discharge channel structure and optimizing the internal structure of the entire filtration system.

[0082] According to one embodiment of this application, the filter assembly includes a first filter screen 5 and a cleaning device 6. The first filter screen 5 is rotatably disposed in a second chamber for filtering and separating the pulverized water-sludge mixture. The cleaning device 6 is disposed within the first filter screen 5 and is adapted to rotate relative to the first filter screen 5 to scrape off some of the residue on the first filter screen 5, thereby forming a water outlet area on the first filter screen 5 that communicates with the second chamber, facilitating water filtration. The relative rotation of the cleaning device 6 and the first filter screen 5 mentioned here means that the cleaning device 6 rotates under the drive of a first driving member (not shown in the figure) and has a speed difference with the first filter screen 5, or only the first filter screen 5 rotates under the drive of the first driving member, which can be designed according to actual working conditions. The first driving member is generally a motor, electric motor, or similar device.

[0083] It should be understood that in this embodiment, the first filter screen 5 is provided with a filter chamber, and the cleaning device 6 is disposed inside the filter chamber. The first suction member 4 draws the crushed water-sludge mixture into the filter chamber of the first filter screen 5 through the bottom channel 2 for filtration. During the filtration process, due to the continuous suction generated by the first suction member 4 and the centrifugal force generated by the rotation of the first filter screen 5, the residue in the water-sludge mixture can be temporarily collected in the filter chamber of the first filter screen 5. Some residue may even adhere to the side wall of the first filter screen 5 adjacent to the first suction member 4, thereby clogging the filter holes of the first filter screen 5 and resulting in unsatisfactory water output. At this time, by setting the cleaning device 6, which rotates relative to the first filter screen 5, some residue on the first filter screen 5 can be scraped off, forming a water outlet area on the first filter screen 5 that communicates with the second chamber. The filtered water can enter the second chamber through the water outlet area and then be discharged. Therefore, by setting the cleaning device 6, this application can effectively improve the water filtration effect.

[0084] According to one embodiment of this application, a first driving member is disposed at the bottom of the second chamber. The first driving member is connected to the first filter screen 5 and the cleaning device 6 respectively, so as to drive the first filter screen 5 and the cleaning device 6 to have different rotation speeds. Thus, the cleaning device 6 can scrape off some of the residue on the first filter screen 5, so that some of the residue is separated from the first filter screen 5. The first driving member can realize coaxial dual output, or other types of motors, or there can be two first driving members, which are respectively connected to the first filter screen 5 and the cleaning device 6.

[0085] like Figures 18-22 As shown, the cleaning device 6 is disposed inside the first filter screen 5. The cleaning device 6 mainly includes a mounting bracket 601 and a contact part 602. The mounting bracket 601 can be connected to the output shaft of the first driving member and can rotate under the drive of the first driving member, thereby driving the entire cleaning device 6 to rotate. The contact part 602 is connected to the mounting bracket 601 and contacts the inner wall of the first filter screen 5. When there is a speed difference between the cleaning device 6 and the first filter screen 5, the contact part 602 can scrape out some of the residue on the first filter screen 5 to form a water outlet area, which facilitates water filtration.

[0086] In some embodiments, such as Figure 22 As shown, the mounting bracket 601 generally includes a connecting portion 6011 and a frame portion 6012. The connecting portion 6011 is coaxially arranged with the output shaft of the first drive member and is rotatable under the drive of the first drive member. One side of the frame portion 6012 is connected to the connecting portion 6011, and a contact portion 602 may be provided on the side of the frame portion 6012 away from the connecting portion 6011. The number of contact portions 602 is the same as the number of frame portions 6012, or they correspond one-to-one.

[0087] In some embodiments, the frame portion 6012 may be integrally formed with the connecting portion 6011. Of course, in other embodiments, the frame portion 6012 may also be separately formed from the connecting portion 6011. Moreover, the shape of the frame portion 6012 is not limited to the frame structure with a hollow portion shown in the figure; in some embodiments, the frame portion 6012 may also be a solid structure.

[0088] In some embodiments, the cleaning device 6 may include at least one frame portion 6012, and each frame portion 6012 has a contact portion 602 on its outer side. When the cleaning device 6 includes two frame portions 6012, the number of contact portions 602 is also two, and the two frame portions 6012 may be symmetrically arranged about the connecting portion 6011. Of course, in other embodiments, three or more frame portions 6012 and contact portions 602 may be provided. For example, in Figure 22In the illustrated embodiment, there are three frame portions 6012 and three contact portions 602, and the three frame portions 6012 are evenly distributed at equal intervals along the circumference of the connecting portion 6011. This application does not limit the number, material, or size of the frame portions 6012 and the contact portions 602.

[0089] In some embodiments, the contact portion 602 may be a scraper, and the contact portion 602 may be made of materials such as silicone or rubber.

[0090] According to one embodiment of this application, such as Figures 18-21 As shown, the first filter screen 5 is cylindrical, but it can also be other shapes with a filter cavity, such as a cone or a cuboid. The outer wall of the first filter screen 5 is spaced apart from the inner wall of the second chamber to form a return water cavity 7. The first suction member 4 is connected to the outlet 701 of the return water cavity 7 through the outlet pipe 8. The return water cavity 7 is adapted to communicate with the interior of the first filter screen 5 through the outlet area of ​​the first filter screen 5, so that the filtered water can flow into the return water cavity 7.

[0091] It should be noted that by setting up the return water chamber 7, the filtered water can continuously enter the return water chamber 7 and continuously fill the entire outlet pipe 8 without mixing in air. This can effectively solve the problem of air being drawn into the outlet 701 position caused by the first suction component 4 during the water drawing process, i.e., the phenomenon of air suction. This improves the filtration efficiency and protects the first suction component 4.

[0092] According to one embodiment of this application, such as Figure 4 and Figure 20 As shown, a support portion 9 is arranged around the inner wall of the second chamber. The bottom of the first filter screen 5 is supported on the support portion 9, creating a gap between the outer wall of the first filter screen 5 and the inner wall of the second chamber. This divides the entire second chamber into an upper return water chamber 7 and a lower channel 2. The bottom inlet of the first filter screen 5 is connected to the channel 2. The phrase "supported on" here can be understood as the support portion 9 serving only a supporting function, not a fixing function. Therefore, the first filter screen 5 can rotate relative to the support portion 9.

[0093] According to one embodiment of this application, the contact portion 602 of the cleaning device 6 can be fixedly connected to the inner wall of the support portion 9, and the first driving member can be connected to the first filter screen 5 to drive the first filter screen 5 to rotate, thereby scraping off some of the residue on the first filter screen 5 by the cleaning device 6. Furthermore, the rotation of the first filter screen 5 generates centrifugal force, allowing the residue of the water-sludge mixture to remain within the filtration chamber of the first filter screen 5. After the filtration process is completed, the first filter screen 5 stops rotating, and the residue falls into the bottom channel 2 under the action of gravity and the suction of the second suction member, and is then sucked out and discharged by the second suction member through the sludge discharge pipe 27.

[0094] like Figure 21 As shown, the first filter screen 5 mainly includes a filter screen frame 501, a filter screen body 502, and a connecting bracket 503. The filter screen body 502 is disposed on the filter screen frame 501. The first end of the connecting bracket 503 is connected to the bottom inner wall of the filter screen frame 501, and the second end of the connecting bracket 503 extends to the central axis of the filter screen frame 501. The second end of the connecting bracket 503 is provided with a connecting hole 504. The output shaft of the first driving member is coaxially connected to the connecting hole 504 of the connecting bracket 503, thereby driving the filter screen frame 501 to rotate, and thus driving the entire first filter screen 5 to rotate.

[0095] In some embodiments, the first filter screen 5 may include three connecting brackets 503, and the second ends of the three connecting brackets 503 are provided with a common connecting hole 504. The three connecting brackets 503 are evenly distributed around the connecting hole 504. On the one hand, this facilitates the entry of the water-sludge mixture into the first filter screen 5, and on the other hand, it improves the overall structural strength and rotational stability of the first filter screen 5.

[0096] In actual crushing operations, due to the different types of residues, the crushing components of related technologies cannot completely crush large or hard residues, resulting in poor crushing effect and easy material jamming, leading to low crushing efficiency, which in turn affects filtration efficiency.

[0097] Therefore, to solve the above-mentioned technical problems, this application provides a crushing component 3, combined with... Figures 4-12 As shown, the crushing component 3 includes a crushing device, which mainly includes roller cutters 10 and partitions 11. Two sets of roller cutters 10 are arranged side-by-side facing each other, and the two sets of roller cutters 10 can rotate in opposite directions to mesh and generate crushing pressure to crush the residue. Each set of roller cutters 10 includes a rotating shaft 1001 and multiple toothed blades 1002. The multiple toothed blades 1002 are axially sleeved on the rotating shaft 1001. The multiple toothed blades 1002 of the two sets of roller cutters 10 are arranged alternately to form a first crushing zone between the two sets of roller cutters 10. When the residue of the water-slag mixture comes into contact with the toothed blades 1002, the residue of the water-slag mixture is carried into the space between the alternately arranged toothed blades 1002 of the two sets of roller cutters 10, thus achieving one-time crushing of the water-slag mixture entering the first crushing zone. The staggered arrangement of the two sets of hobs 10 with toothed pieces 1002 in this embodiment can be understood as follows: the toothed pieces 1002 of the first set of hobs 10 are located within the interval between adjacent toothed pieces 1002 of the second set of hobs 10, and the toothed pieces 1002 of the second set of hobs 10 are located within the interval between adjacent toothed pieces 1002 of the first set of hobs 10; and since the two sets of hobs 10 are staggered, the first toothed piece 1002 of the first set of hobs 10 and the last toothed piece 1002 of the second set of hobs 10 are not within the interval.

[0098] It should be noted that, in the embodiments of this application, the number of roller cutters 10 included in the crushing device is not limited to two sets, but regardless of the number of roller cutters 10, it includes at least two sets of roller cutters 10 arranged opposite each other.

[0099] The partition 11 corresponds to at least one set of roller cutters 10. That is, one set of partitions 11 can correspond to one set of roller cutters 10, or two sets can be configured to correspond to two sets of roller cutters 10 respectively. Generally, the crushing effect is better when the partition 11 corresponds to two sets of roller cutters 10 than when it corresponds to one set. The design can be adjusted according to the actual crushing conditions. For example, when the crushing device is used to crush small granular residues or soft residues, it can use a configuration where the partition 11 corresponds to one set of roller cutters 10. When the crushing device is used to crush large blocky residues or hard objects, it can use a configuration where the partition 11 corresponds to two sets of roller cutters 10 to improve the crushing effect and fully crush the blocky residues or hard objects to a suitable discharge size.

[0100] The partition 11 and the toothed blades 1002 of the same group of roller cutters 10 are staggered to engage, and the partition 11 extends from the side of the toothed blades 1002 to the bottom of the toothed blades 1002 to form a second crushing area between the partition 11 and the bottom of the toothed blades 1002. When the water-slag mixture is crushed in the first crushing area and enters the second crushing area at the bottom, the water-slag mixture is further carried into the space between the staggered partition 11 and the toothed blades 1002, so as to realize the secondary crushing of the water-slag mixture entering the second crushing area, effectively improving the crushing effect and crushing the residue of the water-slag mixture to a suitable discharge size. In this embodiment of the application, the spacer 11 and the toothed pieces 1002 of the same group of hobs 10 are staggered. This can be understood as follows: the spacer 11 is located within the interval of the adjacent toothed pieces 1002 of the hob 10, and the toothed pieces 1002 of the hob 10 are located within the interval of the adjacent spacer 11. Since the spacer 11 and the toothed pieces 1002 of the same group of hobs 10 are staggered, the first toothed piece 1002 and the last spacer 11 are not within the interval.

[0101] The pulverizing device of this application embodiment uses two sets of roller cutters 10 with their toothed blades 1002 arranged alternately to form a first pulverizing area between the two sets of roller cutters 10. When the water-slag mixture enters the first pulverizing area, the residue in the water-slag mixture can be pulverized once. A second pulverizing area is formed by the alternating arrangement of the partition plate 11 and the toothed blades 1002 of the roller cutter 10, with the bottom of the partition plate 11 and the bottom of the toothed blades 1002. When the water-slag mixture enters the bottom of the second pulverizing area after being pulverized in the first pulverizing area, the residue in the water-slag mixture can be pulverized a second time, thereby improving the pulverizing effect. It can effectively pulverize the lumpy residue or hard objects in the water-slag mixture to a suitable discharge size, such as less than 3mm. In addition, the side of the partition plate 11 can scrape off the residue on the toothed blades 1002 of the roller cutter 10, preventing the residue from adhering to the toothed blades 1002 of the roller cutter 10, thereby preventing material jamming. Therefore, the pulverizing device of this application embodiment has the characteristics of being easy to use, having a good pulverizing effect, and having high pulverizing efficiency.

[0102] According to one embodiment of this application, such as Figure 7 and Figure 8 As shown, the partition 11 includes a support portion 1101 and a limiting portion 1102. Along the height direction of the crushing device, the support portion 1101 is located at the bottom of the toothed blade 1002 of the roller cutter 10 and engages with the toothed blade 1002 to form a second crushing area. The limiting portion 1102 is connected to the support portion 1101 and is located on the side of the toothed blade 1002, and is provided with a limiting groove 1103 that cooperates with the rotating shaft 1001 of the roller cutter 10. In this embodiment, the support portion 1101 can support the roller cutter 10 on the one hand, and engage with the toothed blade 1002 of the roller cutter 10 to form a second crushing area, thereby realizing secondary crushing of the water-slag mixture residue and effectively improving the crushing effect. Furthermore, the limiting portion 1102 can limit the rotating shaft 1001 of the roller cutter 10, facilitating the installation of the roller cutter 10.

[0103] On the other hand, when the water-slag mixture enters the second crushing zone at the bottom, it will be further crushed and then fall into the channel 2 through the bottom of the crushing device. However, at the same time, some crushed residue may adhere to the toothed plate 1002 of the roller cutter 10. At this time, the limiting part 1102 can also scrape off this part of the residue to prevent the residue from adhering to the toothed plate 1002, thereby avoiding the phenomenon of material jamming in the roller cutter 10.

[0104] According to one embodiment of this application, refer to Figure 8 and Figure 9As shown, the partition 11 corresponds to two sets of roller cutters 10, that is, each set of roller cutters 10 is provided with a partition 11. The support portions 1101 of the two sets of partitions 11 are arranged in an alternating manner. The support portions 1101 are provided with toothed grooves 1104. The cutting teeth 1003 of the first set of roller cutter 10 toothed plates 1002 mesh with the toothed grooves 1104 of the support portions 1101 of the second set of partitions 11, and the cutting teeth 1003 of the second set of roller cutter 10 toothed plates 1002 mesh with the toothed grooves 1104 of the support portions 1101 of the first set of partitions 11. That is, the cutting teeth 1002 of the two sets of roller cutters 10 are cross-meshing with their respective opposite partitions 11. In this embodiment of the application, by means of cross-meshing, when the water-slag mixture is brought to the second crushing zone at the bottom, the residue of the water-slag mixture can be fully crushed, further improving the crushing effect.

[0105] According to one embodiment of this application, such as Figure 8 As shown, the limiting part 1102 is arc-shaped, and the distance from the outer side of the limiting part 1102 on the same partition 11 to the rotating shaft 1001 of the roller cutter 10 is less than the distance from the tip of the tooth 1003 to the rotating shaft 1001 of the roller cutter 10. That is, by exposing the tooth 1003 of the toothed plate 1002 to the outside of the limiting part 1102, it is convenient to wash the tooth 1003 of the toothed plates 1002 on both sides by water flow, further preventing material jamming and thus improving the crushing efficiency.

[0106] According to one embodiment of this application, such as Figure 8 As shown, the partition 11 also includes a mounting portion 1105, which is connected above the limiting portion 1102. The mounting portion 1105 is provided with a first mounting hole 1106, and the first mounting holes 1106 of the mounting portions 1105 of the plurality of partitions 11 are aligned axially. A first fastening bolt passes through all the first mounting holes 1106 and is then fastened by a first nut. The support portion 1101 is provided with a second mounting hole 1107, and the second mounting holes 1107 of the support portion 1101 of the plurality of partitions 11 are aligned axially. A second fastening bolt passes through all the second mounting holes 1107 and is then fastened by a second nut.

[0107] According to one embodiment of this application, such as Figures 6-8 As shown, a partition plate 12 is provided between the mounting portions 1105 of every two adjacent partition plates 11 to separate the two adjacent partition plates 11; and the partition plate 12 is provided with a third mounting hole 1201, which is aligned with the first mounting hole 1106, so that a first fastening bolt can pass through all the first mounting holes 1106 and the third mounting hole 1201 and then be fastened by a first nut. It should be understood that the installation position of the partition plate 12 in this application should avoid interfering with the rotation of the hob cutter 10 toothed plate 1002.

[0108] According to one embodiment of this application, such as Figure 10As shown, the outer peripheral surface of the hob 10 toothed plate 1002 is provided with 6-8 cutting teeth 1003 at intervals along the circumferential direction. In other words, along the circumferential direction of the toothed plate 1002, 6-8 cutting teeth 1003 are provided at intervals along the edge of the toothed plate 1002.

[0109] It should be noted that if the number of cutting teeth 1003 on a single toothed disc 1002 is less than 6-8, the biting force of the roller cutter 10 will increase, thereby increasing the driving force of the second driving component that drives the roller cutter to rotate, and thus increasing the energy consumption of the second driving component. If the number of cutting teeth 1003 on a single toothed disc 1002 is greater than 6-8, the cutting teeth 1003 on the toothed disc 1002 will be more dense, making it difficult to bite larger lumpy residues in the water-slag mixture. Specifically, because the number of cutting teeth is greater than 6-8, the number of cutting teeth 1003 in contact with lumpy residues at the same time increases, making it difficult for lumpy residues to be carried into the first crushing area between the cutting teeth 1003 of the two sets of roller cutters 10, thus resulting in ineffective crushing of residues. Therefore, by setting the number of cutting teeth 1003 on the toothed disc 1002 to 6-8, this embodiment of the application can reduce the energy consumption of the second driving component while ensuring that the residues in the water-slag mixture quickly enter the first crushing area, thereby improving the crushing effect.

[0110] According to one embodiment of this application, the smaller the distance between adjacent toothed plates 1002 on the same rotating shaft 1001 of the hob 10, the greater the friction with the other set of toothed plates 1002, thereby increasing the driving force of the second driving member that drives the hob 10 to rotate, and thus increasing the energy consumption of the driving member. Therefore, this application sets the distance between adjacent toothed plates 1002 on the same rotating shaft 1001 of the hob 10 to 1.5mm-2.5mm. This ensures that the particle size of the residue after crushing meets the discharge requirements, while reducing the additional friction generated during operation, thereby reducing the energy consumption of the second driving member.

[0111] According to one embodiment of this application, such as Figure 10 and Figure 11As shown, the cutting teeth 1003 of multiple toothed plates 1002 on the same rotating shaft 1001 of the hob 10 form a cutting tooth group along the axial direction. When multiple cutting teeth 1003 are provided on the toothed plates 1002, the corresponding cutting tooth groups are also multiple groups. In each cutting tooth group, multiple cutting teeth 1003 are staggered with each other so that a rotational position difference is formed between the cutting teeth 1003 of each two adjacent toothed plates 1002. That is, two adjacent toothed plates 1002 have a certain deflection angle relative to the rotating shaft 1001 of the hob 10 so that the cutting teeth 1003 are rotated and staggered with each other. The deflection direction of the toothed plates 1002 can be all clockwise or all counterclockwise, that is, deflected in the same rotational direction. The deflection direction of the toothed plates 1002 can also be partly clockwise and partly counterclockwise, that is, deflected in different rotational directions. It can be adjusted accordingly according to the actual crushing conditions. This application sets a rotational position difference by using the cutter teeth 1003, which can ensure that the toothed plates 1002 of the two sets of roller cutters 10 fully engage the residue, thereby improving the crushing effect.

[0112] In related technologies, the axial projections of the cutting teeth 1003 of the multiple toothed blades 1002 on the rotating shaft 1001 of the roller cutter 10 are generally coincident. This causes the pressure on the roller cutter 10 to be concentrated on the cutting teeth in the axial direction. After prolonged crushing of blocky residues or hard objects, this can easily lead to damage to the roller cutter. This application addresses this by setting a rotational position difference in the cutting teeth 1003, which allows the pressure on the roller cutter 10 to be distributed accordingly along the rotational position difference. That is, the pressure is dispersed along the circumferential surface of the rotating shaft 1001 of the roller cutter 10, thereby dispersing the pressure on the roller cutter body, avoiding excessive pressure concentration, protecting the roller cutter 10, and extending the service life of the crushing device.

[0113] According to one embodiment of this application, the rotational position difference angle between two adjacent toothed plates 1002 and the cutting teeth 1003 is set to 4°-6°.

[0114] It should be noted that this application sets the rotational position difference angle to 4°-6°, which satisfies both the biting performance and the manufacturability of the hobbing cutter body. On the other hand, because of this cutter body structure, it is possible to crush large-sized blocky residues or hard objects at low speeds, and because of the low rotational speed, the crushing device of this application embodiment can achieve low-noise operation.

[0115] According to one embodiment of this application, such as Figure 10 and Figure 11As shown, the cutting teeth 1003 of multiple toothed plates 1002 on the same rotating shaft 1001 of the hob 10 are gradually misaligned with each other along the axial direction at a certain deflection angle to form the rotational position difference described in the above embodiment. Specifically, the rotational position difference between cutting tooth 1 and cutting tooth 2 is 4°-6° (e.g., 5°), and the rotational position difference between cutting tooth 2 and cutting tooth 3 is also 4°-6° (e.g., 5°), and so on, so that a certain angle of rotational position difference is formed between adjacent cutting teeth 1003 along the same deflection direction. This ensures that the hob 10 fully engages the residue, and at the same time maximizes the pressure dispersion effect on the hob 10.

[0116] According to one embodiment of this application, the rotating shaft 1001 of the roller cutter 10 is connected to a second driving member. The second driving member drives the rotating shaft 1001 to rotate, thereby causing the roller cutter 10 to rotate. The second driving member can drive the roller cutter 10 to operate in a low-noise state below 47 dB, preventing noise generation and improving the user experience of the crushing device. Specifically, by adjusting the input voltage of the second driving member, the rotational speed of the second driving member is reduced, while a constant voltage is set, for example, 100V-120V (220V at full load). In this way, the second driving member can output a constant low rotational speed, for example, 90RPM-120RPM. Compared with the full load state, the noise can be significantly reduced under low voltage and low rotational speed conditions. In addition, if the water-slag mixture contains residues that are difficult to crush and have high hardness, the input voltage of the second driving member can be increased in real time to meet the instantaneous high torque requirements. After successful crushing, the input voltage of the second driving member is restored to the low voltage state. Thus, throughout the entire process, the user always experiences a low-noise state.

[0117] According to one embodiment of this application, such as Figure 12 As shown, the second driving component includes a drive motor 13 and a gearbox 14. The drive motor 13 is connected to the rotating shafts 1001 of the two sets of hobs 10 through the gearbox 14, thereby driving the two sets of hobs 10 to rotate. Specifically, the gearbox 14 includes a housing and a gear pair disposed within the housing. The gear pair includes a first drive shaft 141, a second drive shaft 142, a first gear 143, a second gear 144, a third gear 145, a fourth gear 146, and a fifth gear 147. The first drive shaft 141 is equipped with the first gear 143, which meshes with the tooth groove on the output shaft of the drive motor 13. The second drive shaft 142 is equipped with the second gear 144, which meshes with the tooth groove on the first drive shaft 141. The first set of hobs 10 has a rotating shaft 1001 equipped with the third gear 145 and the fourth gear 146. The third gear 145 meshes with the tooth groove on the second drive shaft 142. The second set of hobs 10 has a rotating shaft 1001 equipped with the fifth gear 147, which meshes with the fourth gear 146. The rotation of the drive motor 13 drives the rotation of each gear, thereby driving the two sets of hobs 10 to rotate.

[0118] According to one embodiment of this application, in conjunction with Figure 4 and Figure 5 As shown, the crushing device also includes a housing 15, the bottom of which is connected to the channel 2. The roller cutter 10 and partition 11 of the above embodiment are disposed inside the housing 15. A feed inlet 1501 is formed on the housing 15, located at the top of the housing 15 and corresponding to the water-slag mixture inlet of the housing 1. The feed inlet 1501 is connected to the first crushing area of ​​the roller cutter 10. A drainage channel 16 suitable for water passage is formed between the side wall of the housing 15 and the roller cutter 10, and the drainage channel 16 is connected to the feed inlet 1501. Figure 5 The middle arrow indicates the flow direction of the water-slag mixture. The residue and some water flow into the first crushing area of ​​the crushing device through the feed inlet 1501 for primary crushing, and then fall into the second crushing area at the bottom for secondary crushing. After being fully crushed, it enters the bottom channel 2.

[0119] In actual crushing operations, some powdery residue may adhere to the toothed blades 1002 of the roller cutter 10 and not be scraped off by the partition plate 11. This can affect the rotation of the roller cutter 10 and thus the crushing effect, potentially causing material jamming. Furthermore, it can breed bacteria and produce odors. Therefore, this application addresses this issue by setting up a drainage channel 16, allowing another portion of the water flow to enter through the feed inlet 1501 into the drainage channels 16 on both sides. The drainage channels 16 guide the water flow to the teeth 1003 of the toothed blades 1002 on both sides of the roller cutter 10, rinsing the teeth 1003. Under the rinsing and cleaning action of the water flow, the material remaining on the teeth 1003 is easily washed away, achieving self-cleaning of the blades and preventing material jamming and odor generation.

[0120] According to one embodiment of this application, in one implementation, such as Figure 4 and Figure 5 As shown, a filter device is provided between the feed inlet 1501 of the crushing device housing 15 and the first crushing area. The filter device includes a filter hopper 17, and the side wall of the filter hopper 17 is provided with a through hole 1701 communicating with the guide channel 16. Since some residue may enter the guide channel 16 with the water flow, affecting the self-cleaning effect of the blades and causing blockage of the channel 2, this embodiment of the application provides a filter hopper 17 with a through hole 1701 on the side wall of the filter hopper 17 to filter the residue. This allows the residue of the water-slag mixture in the filter hopper 17 to be concentrated and enter the first crushing area of ​​the roller cutter 10, preventing the residue from entering the guide channel 16 directly without crushing, and further improving the self-cleaning effect of the roller cutter 10.

[0121] According to one embodiment of this application, such as Figures 13-16As shown, a filtration channel 1702 is provided on the filter hopper 17 along its height. Residue and some of the water to be filtered from the water-sludge mixture flow into the filtration channel 1702 through its inlet, and then through its outlet 1703 at the bottom to the first crushing area of ​​the crushing device for further crushing. A through-hole 1701 on the side wall of the filter hopper 17 is connected to the filtration channel 1702. Another portion of the water to be filtered flows through the through-hole 1701 into the guide channel 16. The guide channel 16 directs the filtered water to the teeth 1003 of the toothed blades 1002 on both sides of the roller cutter 10, flushing the teeth and achieving self-cleaning of the blades. The specific number of through-holes 1701 is not particularly limited and can be adjusted according to actual working conditions. In this embodiment, there are multiple through holes 1701, and the multiple through holes 1701 are opened at least on two opposite side walls of the filter hopper 17, so that the filtered water can enter the drainage channels 16 on both sides to flush the blade teeth 1003 on both sides of the roller cutter 10, thereby further improving the self-cleaning effect.

[0122] In actual crushing operations, when the amount of material to be crushed is large, some uncrushed water-slag mixture will accumulate in the filter hopper 17 and above the first crushing area of ​​the roller cutter 10. When relatively light foreign objects, such as toothpicks or dental floss, are mixed into the water-slag mixture, these objects will float near the through-hole 1701 of the filter hopper 17. This allows these objects to pass through the through-hole 1701 of the filter hopper 17 without being crushed by the roller cutter 10 and enter the drainage channel 16, eventually falling into the bottom channel 2, causing blockage. They may even get stuck in the first suction component 4 and the second suction component, causing damage.

[0123] To solve the above technical problems, such as Figure 5 and Figure 17 As shown, the filtration device of this application also includes a blocking component, which is disposed on the outside of the filter hopper 17. The blocking component is located upstream in the flow channel 16 and corresponds to the through hole 1701 of the filter hopper 17. The term "corresponds" here can be understood as the blocking component being disposed at the outlet of the through hole 1701. There is a certain distance between the blocking component and the outlet of the through hole 1701. By intermittently disposing the blocking component at the outlet position of the through hole 1701, thin objects such as toothpicks and dental floss can be blocked without obstructing the flow of water, preventing such thin objects from entering the flow channel 16 through the through hole 1701.

[0124] The "height direction of filter hopper 17" mentioned in the text can be understood as the direction from the inlet of filter hopper 17 to the outlet 1703, such as... Figure 4 , Figure 5As shown, if the filter hopper 17 is placed vertically, then the height direction of the filter hopper 17 is also vertical. In other usage scenarios, the filter hopper 17 can also be placed tilted or horizontally. In this case, the height direction of the filter hopper 17 is also tilted or horizontal.

[0125] In this embodiment of the application, the blocking component includes a first blocking member 18 and a second blocking member 19. The first blocking member 18 and the second blocking member 19 are spaced apart, and in a plane perpendicular to the axial direction of the through hole 1701, the orthographic projection of the first blocking member 18 and the orthographic projection of the second blocking member 19 partially overlap. A water storage cavity 20 is formed between the outer side of the filter hopper 17 and the first blocking member 18. A flow channel 21 is formed between the first blocking member 18 and the second blocking member 19 and communicates with the water storage cavity 20. The water storage cavity 20 is connected to the drainage channel 16 through the flow channel 21.

[0126] According to an embodiment of this application, a first blocking member 18 and a second blocking member 19 are provided on the outside of the through hole 1701 of the filter hopper 17 and upstream of the drainage channel 16. The first blocking member 18 and the second blocking member 19 are spaced apart and their orthogonal projections in a plane perpendicular to the axial direction of the through hole 1701 overlap. The axial direction of the through hole 1701 is as follows: Figure 16 The direction of the dotted line shown. When a toothpick or other slender object flows into the through hole 1701, it will be blocked by at least one of the first blocking member 18 and the second blocking member 19, or it may be stuck between the first blocking member 18 and the second blocking member 19, which prevents the toothpick or other slender object from continuing to pass through the through hole 1701. In this way, the blocking component provided in this embodiment can block long and thin objects such as toothpicks, preventing them from flowing through the through hole 1701 to the drainage channel 16 outside the filter hopper 17, thus avoiding blockage of the subsequent channel 2. At least part of the water filtered through the through hole 1701 flows to the water storage chamber 20 and then flows into the drainage channel 16 through the flow channel 21. Another part of the water flows directly into the drainage channel 16 through the flow channel 21. These two parts of filtered water can flow together to both sides of the roller cutter 10 for rinsing through the drainage channel 16. The rinsed water and the crushed residue enter the bottom channel 2 and are then sucked by the first suction member 4 into the first filter screen 5 of the second chamber for further filtration and separation.

[0127] It should be understood that in the embodiments of this application, the flow channel 21 and the water storage cavity 20 are both connected to the through hole 1701 of the filter hopper 17 so that the filtered water can flow into the drainage channel 16.

[0128] It should be noted that since some fine particulate residue may flow into the through hole 1701, a water storage chamber 20 is provided between the filter hopper 17 and the first blocking member 18 to allow these particulate residues to settle and collect for secondary filtration. When the water in the water storage chamber 20 spreads upward into the flow channel 21, it flows into the guide channel 16, thereby effectively improving the filtration effect. In addition, the bottom of the water storage chamber 20 can effectively block long and thin objects such as toothpicks. Therefore, this embodiment of the application achieves at least two stages of filtration through the through hole 1701 and the water storage chamber 20, further ensuring the filtration effect of the filtration device, thereby effectively gathering residues in the first crushing area of ​​the crushing device for crushing, and improving the self-cleaning effect of the roller 10.

[0129] According to one embodiment of this application, the upper opening of the water storage chamber 20 corresponds to all the through holes 1701 on the filter bucket 17, so that the water storage chamber 20 can cover all the through holes 1701. That is, the water flowing out of all the through holes 1701 can first pass through the sedimentation and filtration of the water storage chamber 20 before flowing into the drainage channel 16, thereby further improving the filtration effect.

[0130] According to one embodiment of this application, such as Figure 5 and Figure 17 As shown, the first blocking member 18 is disposed on the side near the filter hopper 17, and the first blocking member 18 extends from the bottom of the filter hopper 17 toward the top of the filter hopper 17. In this embodiment, the bottom of the first blocking member 18 is disposed on the top of the housing 15 of the pulverizing device, so as to form a water storage cavity 20 between it and the filter hopper 17. The water storage cavity 20 can filter water on the one hand, and on the other hand, the bottom of the water storage cavity 20 can prevent long and thin objects such as toothpicks from falling directly into the drainage channel 16.

[0131] The second blocking member 19 is disposed on the side of the first blocking member 18 facing away from the filter hopper 17. The top of the second blocking member 19 is connected to the top of the filter hopper 17, and the second blocking member 19 extends toward the bottom of the filter hopper 17.

[0132] In another implementation, the pulverizing component 3 also includes a filtering device, which includes a filter hopper 17 disposed in the first chamber, and the side wall of the filter hopper 17 is provided with a through hole 1701 communicating with the first chamber.

[0133] It is understandable that in this implementation, the filter hopper 17 can be directly set in the first chamber, and the side wall of the filter hopper 17 is provided with a through hole 1701 communicating with the first chamber. Since some residue may enter the first chamber with the water flow, affecting the self-cleaning effect of the blade and causing blockage of the channel 2, this embodiment of the application sets the filter hopper 17 and the side wall of the filter hopper 17 is provided with a through hole 1701 to filter the residue and prevent the residue from entering the first chamber.

[0134] According to one embodiment of this application, see Figure 17 The filtration device also includes a blocking assembly, which is disposed on the outside of the filter hopper 17 and corresponds to the through hole 1701. The blocking assembly includes a first blocking member 18 and a second blocking member 19 disposed at intervals. In a plane perpendicular to the axial direction of the through hole 1701, the orthographic projection of the first blocking member 18 and the orthographic projection of the second blocking member 19 partially overlap. A water storage cavity 20 is formed between the outside of the filter hopper 17 and the first blocking member 18. A flow passage 21 is formed between the first blocking member 18 and the second blocking member 19 and communicates with the water storage cavity 20. The flow passage 21 communicates with the first chamber.

[0135] According to an embodiment of this application, a first blocking member 18 and a second blocking member 19 are provided on the outside of the through hole 1701 of the filter 17, and the first blocking member 18 and the second blocking member 19 are spaced apart such that their orthogonal projections in a plane perpendicular to the axial direction of the through hole 1701 overlap. The axial direction of the through hole 1701 is as follows: Figure 16 The direction of the dotted line shown. When a toothpick or other slender object flows into the through hole 1701, it will be blocked by at least one of the first blocking member 18 and the second blocking member 19, or it may be stuck between the first blocking member 18 and the second blocking member 19, which prevents the toothpick or other slender object from continuing to pass through the through hole 1701.

[0136] In this way, the blocking component provided in this embodiment can block long and thin objects such as toothpicks, preventing them from flowing through the through hole 1701 into the first chamber outside the filter 17, thus avoiding blockage of the subsequent channel 2.

[0137] According to one embodiment of this application, such as Figure 17 As shown in the diagram, I, II, III, IV, and V represent long, thin objects such as toothpicks. Figure 17 The diagram illustrates five different angles at which long, thin objects such as toothpicks can be inserted into the through-hole 1701. Regardless of the angle, the object will be blocked by the first blocking member 18 and the second blocking member 19, preventing it from flowing out of the through-hole 1701. Specifically, toothpick No. 1 is inserted vertically into the through-hole 1701, while toothpicks No. 2, No. 3, No. 4, and No. 5 are inserted at an angle. When the sidewall of the filter 17 is vertical, toothpick No. 1 cannot be inserted into the through-hole 1701; only toothpicks No. 2, No. 3, No. 4, and No. 5, inserted at an angle, can be inserted, but will be blocked by the first blocking member 18 and the second blocking member 19, preventing them from passing through the through-hole 1701. When the sidewall of the filter 17 is vertical, toothpick No. 1 cannot be inserted into the through-hole 1701; only toothpicks No. 2, No. 3, No. 4, and No. 5, inserted at an angle, can be inserted into the through-hole 1701, but will be blocked by the first blocking member 18 and the second blocking member 19, preventing them from passing through the through-hole 1701. When the sidewall of the filter 17 is vertical, toothpick No. 1 cannot be inserted into the through-hole 1701. Figure 14 and Figure 15When the inclined surface is shown, toothpick No. I in the vertical direction cannot be inserted into the through hole 1701. Toothpicks No. II, III, IV and V in the inclined direction can be inserted into the through hole 1701, but they will also be blocked by the first blocking member 18 and the second blocking member 19 and cannot pass through the through hole 1701. The specific blocking method of the blocking components is described below.

[0138] When toothpicks and other thin, long objects are used as Figure 17 When a toothpick of type II enters the through-hole 1701 at the bottom of the filter hopper 17 in the direction indicated, the end of the toothpick or other slender object will be blocked by the first blocking member 18. That is, the toothpick or other slender object will be stuck between the through-hole 1701 and the first blocking member 18. At the same time, since the first blocking member 18 and the housing 15 at the top of the pulverizing device form a water storage cavity 20, the bottom of the water storage cavity 20 will also block the toothpick. Therefore, the toothpick or other slender object cannot continue to flow through the through-hole 1701 of the filter hopper 17 into the drainage channel 16.

[0139] When toothpicks and other thin, long objects are used as Figure 17 When toothpicks No. III and No. IV enter the through hole 1701 at the top of the filter 17 in the direction indicated, the ends of the toothpicks and other slender objects will be blocked by the second blocking member 19. That is, the toothpicks and other slender objects are stuck between the through hole 1701 and the second blocking member 19 and cannot flow through the through hole 1701 of the filter 17 into the drainage channel 16.

[0140] When toothpicks and other thin, long objects are used as Figure 17 When a toothpick (size V) enters the through-hole 1701 at the top of the filter 17 in the direction indicated, the end of the toothpick or other slender object will get stuck between the first blocking member 18 and the second blocking member 19, preventing it from flowing through the through-hole 1701 into the drainage channel 16. Therefore, by providing the aforementioned blocking components on the outside of the filter 17 and upstream of the drainage channel 16, this embodiment of the application can effectively prevent slender objects such as toothpicks from passing through the through-hole 1701 from different positions.

[0141] According to one embodiment of this application, most of the food in the tableware is cooked residue, which is easy to sink into the water and accumulate in the crushing device for crushing. Since toothpicks have buoyancy, some toothpicks will not easily accumulate in front of the crushing device and will float on top of the residue. They may flow into the drainage channel 16 through the through hole 1701 of the filter hopper 17, thereby blocking the first suction component 4 and the second suction component and affecting their operation. Due to the influence of water flow, toothpicks are generally inserted into the through hole 1701 at an angle, typically in the form of size II, III, IV, and V toothpicks. In this embodiment, to better achieve the aforementioned blocking effect, the height H2 of the second blocking member 19 is greater than the height H1 of the first blocking member 18. Specifically, the ratio of the height H2 of the second blocking member 19 to the height H1 of the first blocking member 18 is set to a range of 2.6 to 3.2. For example, the height H1 of the first blocking member 18 can be 20mm-23mm, and the height H2 of the second blocking member 19 can be 60mm-63mm. This can maximally restrict the flow of slender materials such as toothpicks through the through hole 1701 into the drainage channel 16. Furthermore, it allows the water storage cavity 20 formed by the first blocking member 18 and the outer side of the filter hopper 17 to be interconnected with the flow channel 21 and the drainage channel 16, ensuring the water flow rate and thus guaranteeing the self-cleaning effect.

[0142] According to one embodiment of this application, such as Figure 17 As shown, the value range of the interval W1 between the first blocking member 18 and the second blocking member 19 is 15mm-16mm. This is mainly to ensure that the amount of water that can pass through meets the water volume requirements of the washing cycle. This can prevent long and thin objects such as toothpicks from passing through the through hole 1701, while also ensuring the water flow space, and further ensuring the spray washing efficiency of the subsequent dishwasher.

[0143] It should be understood that, in the embodiments of this application, the distance between the first blocking member 18 and the through hole 1701 and the distance between the second blocking member 19 and the through hole 1701 should be less than the length of the toothpick or other slender object, so as to better block the toothpick or other slender object.

[0144] According to one embodiment of this application, such as Figure 14 and Figure 15 As shown, from the top to the bottom of the filter hopper 17, the cross-sectional area of ​​the filter hopper 17 gradually decreases, thus making the side wall of the filter hopper 17 an inclined surface. This facilitates the collection of the water-sludge mixture into the first crushing area of ​​the crushing device, and allows the water flowing out of the through hole 1701 to better enter the water storage chamber 20 for sedimentation and filtration, further improving the filtration effect.

[0145] The specific shape of the filter hopper 17 in this application is not particularly limited. In some embodiments, the shape of the filter hopper 17 can be a frustum or a pyramid.

[0146] like Figure 15 and Figure 16 As shown, a stepped portion 22 is provided between the upper through hole 1701 and the lower through hole 1701 of the filter 17. By providing the stepped portion 22, it can also serve to block long and thin objects such as toothpicks. Figure 17 The toothpick No. I, which is vertically inserted into the through hole 1701, is directly inserted into the step 22 and cannot enter the through hole 1701.

[0147] According to one embodiment of this application, such as Figure 13 As shown, the aspect ratio of the bottom discharge port 1703 of the filter hopper 17 ranges from 1.1 to 1.3. For example, the length L of the bottom discharge port 1703 of the filter hopper 17 is 70mm-72mm and the width W2 is 59mm-62mm. By setting the size of the bottom discharge port 1703 of the filter hopper 17, it can be effectively ensured that the water-slag mixture falls into the first crushing area of ​​the crushing device.

[0148] According to one embodiment of this application, such as Figure 13 As shown, the filter 17 has multiple through holes 1701 spaced apart. From the top to the bottom of the filter 17, the hole spacing F between two adjacent through holes 1701 ranges from 7mm to 8mm, and the ratio of the width to the height of the through hole 1701 ranges from 1.1 to 1.6. For example, the width W3 of the through hole 1701 is 7mm-8mm, and the height H3 is 5mm-6mm. Since the size of a toothpick after being sufficiently pulverized is less than 5mm, it is allowed to enter the through holes 1701 of the filter 17. By setting the size of the through holes 1701, this application can effectively prevent unpulverized toothpicks from entering while appropriately allowing sufficiently pulverized toothpicks to enter.

[0149] According to one embodiment of this application, the center hole spacing between two adjacent through holes 1701 perpendicular to the height direction of the filter 17 is 8mm-9mm, which can effectively prevent uncrushed toothpicks from entering.

[0150] According to one embodiment of this application, at least one row of through holes 1701 is provided along the height direction of the filter hopper 17. In this example, two rows of through holes 1701 are provided to improve the filtration effect.

[0151] According to one embodiment of this application, a plurality of through holes 1701 are provided on at least two opposite sidewalls of the filter hopper 17 to improve water return and filtration efficiency.

[0152] According to one embodiment of this application, such as Figure 16 As shown, the first blocking member 18 and the second blocking member 19 can be baffles that block all through holes 1701 along the height direction of the filter hopper 17.

[0153] According to one embodiment of this application, such as Figure 1 and Figure 23 As shown, the filtration system of this application also includes a filter screen support 23, which is installed on the top of the housing 1. The filter screen support 23 has a first opening 28 corresponding to the crushing component 3. The first opening 28 is set to correspond to the inlet of the filter hopper 17 to facilitate the flow of water and sludge mixture. The filter screen support 23 also has a second opening 29 corresponding to the filtration component. A second filter screen 24 is provided at the second opening 29. At this time, the upper end of the first filter screen 5 can also be set with an opening. Part of the water to be filtered in the water and sludge mixture can be filtered by the second filter screen 24 and directly enter the return water chamber 7 or the first filter screen 5. On the one hand, it can increase the water volume in the return water chamber 7, thereby preventing the first suction component 4 from having an empty suction phenomenon and ensuring normal operation. On the other hand, it can ensure the return water spray volume of the dishwasher and improve the circulation spray efficiency.

[0154] According to one embodiment of this application, the filter screen support 23 is inclined towards the housing 1 from the edge of the filter screen support 23 toward the first opening 28. That is, the overall structure of the filter screen support 23 is concave downwards and inclined toward the first opening 28 at an angle of 2°-5°. In this way, the water-sludge mixture will flow along the filter screen support 23 and collect at the first opening 28, and then enter the crushing component 3. With this arrangement, the water-sludge mixture can be guided to quickly enter the crushing component 3, thereby improving the crushing and filtering efficiency.

[0155] According to one embodiment of this application, the filter support 23 is provided with a spray arm interface 25. The upper end of the spray arm interface 25 is connected to a spray arm (not shown in the figure), and the lower end of the spray arm interface 25 is connected to the first suction member 4 via a return water pipe 26. The first suction member 4 draws the filtered water in the return water chamber 7 out through the outlet water pipe 8 and sends it to the spray arm through the return water pipe 26. This can flush the water and sludge mixture on the filter support 23 into the first opening 28 or circulate the spray on the dishes in the dishwasher, thereby improving washing efficiency.

[0156] On the other hand, the dishwasher of the second aspect of this application mainly includes: an inner tub (not shown in the figure), a shell 1 (also referred to as a "water cup") and the filtration system of the above embodiment. A tableware support is provided in the upper part of the inner tub for placing tableware, and a filtration system is provided in the bottom of the inner tub.

[0157] Based on the above embodiments, the following references Figure 24 and Figure 25 The working principle of the dishwasher filtration system described in this application mainly includes: the washing process and the slag discharge process.

[0158] Washing process: such as Figure 24As indicated by the middle arrow, when the first suction component 4 is activated, the residue and water to be filtered flow into the filter hopper 17 of the first chamber through the inlet of the water cup. They then enter the first crushing area of ​​the roller cutter 10 and are crushed. Because the cutting speed of the roller cutter 10 is not very fast, when there is too much residue to be crushed, it will accumulate above the roller cutter 10. At this time, lighter objects (mainly thin objects such as toothpicks) will float near the through-hole 1701 of the filter hopper 17 and flow into the through-hole 1701 of the filter hopper 17, where they are blocked by the blocking component. Some water will also flow into the through-hole 1701. Large, blocky residue cannot enter the through-hole 1701 but continues to flow under the influence of gravity. As the roller blade 10 descends, some fine particles may flow through the through-hole 1701 and then further enter the water storage chamber 20 for sedimentation and filtration. Water filtered through the through-hole 1701 flows through the guide channel 16 to flush the roller blade 10 before entering the bottom channel 2. The flushed water and the pulverized water-sludge mixture are then drawn into the second chamber by the first suction component 4 and filtered again by the first filter screen 5. Simultaneously, the cleaning device 6 is activated to scrape off some residue from the first filter screen 5, facilitating the flow of filtered water through the outlet area of ​​the first filter screen 5 into the return water chamber 7. The first suction component 4 then delivers the water from the return water chamber 7 to the spray arm via the spray arm interface, achieving cyclic spray washing of the dishes. Therefore, the filtration system of this application ensures both automatic pulverization of residue and water recycling within the dishwasher.

[0159] Furthermore, during the washing process, some of the water to be filtered can flow into the return water chamber 7 or the first filter 5 through the second filter 24, ensuring the return water volume and thus ensuring the spraying effect of the dishwasher.

[0160] Slag removal process: such as Figure 25 As shown by the middle arrow, after washing is complete, the first suction component 4 is closed and the second suction component is opened to suck out the residue in the first chamber and / or the second chamber through the bottom channel 2, and finally discharge it to the outside of the dishwasher.

[0161] Therefore, the filtration system of the dishwasher in this application embodiment can effectively separate water and sludge mixtures, realize automated sludge treatment, eliminate the need for manual sludge treatment, and achieve the maintenance-free function of the dishwasher; in addition, the filtration system can realize circulating spraying, ensure water return volume, save water, and thus improve the user experience.

[0162] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A filtration system, characterized by, The application relates to a shell, a pulverizing assembly, a filtering assembly, a first suction device and a second suction device. The shell is provided with a first chamber, a second chamber and a channel communicated with the bottom of the first chamber and the bottom of the second chamber. The pulverizing assembly is arranged in the first chamber and is adapted to pulverize a water residue mixture entering the first chamber. The filtering assembly is rotatably arranged in the second chamber, and the opening of the filtering assembly is directed to the channel. The first suction device is communicated with the second chamber and is adapted to suck the pulverized water residue mixture into the filtering assembly through the channel. The second suction device is communicated with the first chamber and is adapted to suck the residue in the first chamber and / or the second chamber out through the channel when the first suction device is stopped.

2. The filtration system of claim 1, wherein, The filtering assembly comprises a first filter screen and a cleaning device arranged in the first filter screen.

3. The filtration system of claim 2, wherein, The cleaning device is adapted to rotate oppositely with the first filter screen to scrape part of the residue of the water residue mixture on the first filter screen to form a water outlet area on the first filter screen communicated with the second chamber. The cleaning device comprises a mounting frame rotatably arranged in the first filter screen and a contact part connected to the mounting frame and contacted with the inner wall of the first filter screen to form the water outlet area. The outer wall of the first filter screen is spaced from the inner wall of the second chamber to form a backwater chamber, the first suction device is connected to the backwater chamber, and the backwater chamber is adapted to be communicated with the inside of the first filter screen through the water outlet area.

4. The filtration system of claim 2, wherein, The pulverizing assembly comprises a pulverizing device.

5. The filtration system of claim 1, wherein, The pulverizing device comprises two groups of oppositely arranged rotary cutters, each rotary cutter comprises a rotating shaft and a plurality of tooth pieces sleeved on the rotating shaft, and the tooth pieces of the two groups of rotary cutters are staggered to form a first pulverizing area between the two groups of rotary cutters. The pulverizing device further comprises a spacer corresponding to at least one group of rotary cutters and staggered with the tooth pieces, and the spacer extends from the side of the tooth piece to the bottom of the tooth piece to form a second pulverizing area between the bottom of the tooth piece.

6. The filtration system of claim 5, wherein, The spacer comprises a supporting part and a limiting part connected to each other, the supporting part is located at the bottom of the tooth piece and engages with the tooth piece to form the second pulverizing area, and the limiting part is located at the side of the tooth piece and is provided with a limiting groove matched with the rotating shaft.

7. The filtration system of claim 6, wherein, The spacer comprises two groups corresponding to the two groups of rotary cutters, the supporting parts of the two groups are staggered, the supporting part is provided with a tooth groove, the teeth of the first group of tooth pieces engage with the tooth groove of the second group of supporting parts, and the teeth of the second group of tooth pieces engage with the tooth groove of the first group of supporting parts.

8. The filtration system of claim 7, wherein, The pulverizing device further comprises a machine shell, the bottom of the machine shell is communicated with the channel, the rotary cutters and the spacer are arranged in the machine shell, the machine shell is formed with a feeding port communicated with the first pulverizing area, and a drainage channel communicated with the feeding port is formed between the side wall of the machine shell and the rotary cutters.

9. The filtration system of claim 6, wherein, The pulverizing assembly further comprises a filtering device.

10. The filtration system of claim 9, wherein, The filtering device comprises a filter hopper arranged between the feeding port and the first pulverizing area, and the side wall of the filter hopper is provided with a through hole communicated with the drainage channel. ​ 11. The filtration system of claim 10, wherein, The filter device further comprises a blocking assembly arranged outside the filter basket and corresponding to the through hole upstream of the drainage channel, the blocking assembly comprises a first blocking piece and a second blocking piece arranged at intervals, in a plane perpendicular to the axial direction of the through hole, the orthographic projection of the first blocking piece partially overlaps the orthographic projection of the second blocking piece, a water storage cavity is formed between the outside of the filter basket and the first blocking piece, and a flow passage communicating with the water storage cavity is formed between the first blocking piece and the second blocking piece, the flow passage communicates with the drainage channel.

12. The filtration system of claim 11, wherein, The first blocking piece is arranged at the top of the shell and extends from the bottom of the filter basket towards the top of the filter basket. The second blocking piece is arranged on the side of the first blocking piece away from the filter basket, and the top of the second blocking piece is connected to the filter basket and extends towards the bottom of the filter basket.

13. The filtration system of claim 1, wherein, The crushing assembly further comprises a filter device, and the filter device comprises: A filter basket arranged in the first chamber, and a side wall of the filter basket is provided with a through hole communicating with the first chamber.

14. The filtration system of claim 13, wherein, The filter device further comprises a blocking assembly arranged outside the filter basket and corresponding to the through hole, the blocking assembly comprises a first blocking piece and a second blocking piece arranged at intervals, in a plane perpendicular to the axial direction of the through hole, the orthographic projection of the first blocking piece partially overlaps the orthographic projection of the second blocking piece, a water storage cavity is formed between the outside of the filter basket and the first blocking piece, and a flow passage communicating with the water storage cavity is formed between the first blocking piece and the second blocking piece, the flow passage communicates with the first chamber.

15. The filtration system of any one of claims 1-14, wherein, A filter screen support is further arranged in the shell, and the filter screen support is provided with a first opening corresponding to the crushing assembly and a second opening corresponding to the filtering assembly, and a second filter screen is arranged at the second opening.

16. The filtration system of claim 15, wherein, The filter screen support is arranged obliquely towards the shell from the edge of the filter screen support to the direction of the first opening.

17. The filtration system of claim 15, wherein, A spray arm interface is arranged on the filter screen support, and the spray arm interface is connected to the first suction piece.

18. A dishwasher, characterized in that It comprises: An inner container and the filter system according to any one of claims 1-17, and the filter system is arranged in the inner container.

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