Filter device and dishwasher

Abstract

The present application relates to the technical field of dishwashers, and provides a filtering device and a dishwasher, including: a filter hopper, with through holes formed in the side wall of the filter hopper; a blocking assembly, arranged outside the filter hopper and corresponding to the through holes, the blocking assembly includes a first blocking member and a second blocking member arranged at intervals, in a plane perpendicular to the axial direction of the through holes, 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 hopper and the first blocking member, and a flow-through channel communicating with the water storage cavity is formed between the first blocking member and the second blocking member. The present application can collect and filter residues, and while ensuring the return of water, prevent slender objects such as toothpicks from flowing through the through holes to the water path outside the filter hopper, avoiding blockage of the water path.

Description

Technical Field

[0001] The present application relates to the technical field of dishwashers, and in particular to a filtering device and a dishwasher. Background Art

[0002] Currently, a filtering device is usually provided inside the water cup inlet of a dishwasher to collect residues. A crushing device is provided inside the dishwasher. When the filtered water and residues flow into the filtering device through the inlet, the residues are crushed by the crushing device. However, due to the limited crushing capacity of the crushing device, some uncrushed residues will accumulate near the inlet. When relatively light foreign objects such as toothpicks and dental floss are mixed in the residues, the toothpicks, dental floss and other slender objects will float near the inlet, which makes it easy for the toothpicks, dental floss and other slender objects to enter the water path inside the water cup through the mesh holes on the filtering device, causing the water path to be blocked and affecting the normal operation of the dishwasher. Summary of the Invention

[0003] The present application aims to at least solve one of the technical problems existing in the related art. For this purpose, the present application provides a filtering device that can collect and filter residues, and while ensuring the return of water, prevent slender objects such as toothpicks from flowing through the through holes to the water path outside the filter hopper, avoiding blockage of the water path.

[0004] The present application also provides a dishwasher.

[0005] The filtering device according to the first aspect embodiment of the present application includes: a filter hopper, with through holes provided on the side wall of the filter hopper; a blocking assembly, arranged outside the filter hopper and corresponding to the through holes, the blocking assembly includes a first blocking member and a second blocking member arranged at intervals, in a plane perpendicular to the axial direction of the through hole, the orthographic projection of the first blocking member overlaps with the orthographic projection of the second blocking member partially, a water storage cavity is formed between the outside of the filter hopper and the first blocking member, and a flow-through channel communicating with the water storage cavity is formed between the first blocking member and the second blocking member.

[0006] According to the filtering device of the embodiment of the present application, by arranging the first blocking member and the second blocking member outside the through hole of the filter hopper, the first blocking member and the second blocking member have an interval and their orthographic projections in a plane perpendicular to the axial direction of the through hole overlap partially. When slender objects such as toothpicks flow to the through hole, the first blocking member and the second blocking member arranged as above can block the toothpicks and other slender objects, preventing them from flowing through the through hole to the water path outside the filter hopper, avoiding blockage of the water path; and at least part of the water filtered through the through hole flows into the water storage cavity and then into the flow-through channel, and another part of the water directly flows into the flow-through channel. These two parts of the filtered water can flow into the water path outside the filter hopper together after flowing through the flow-through channel, ensuring the return of water of the filtering device, and further ensuring the circulating spray washing of the dishwasher.

[0007] According to an embodiment of the present application, the first blocking member extends from the bottom of the filter hopper towards the top of the filter hopper; the second blocking member is disposed on a side of the first blocking member facing away from the filter hopper, and the top of the second blocking member is connected to the filter hopper and extends towards the bottom of the filter hopper.

[0008] According to an embodiment of the present application, the value range of the ratio of the height of the second blocking member to the height of the first blocking member is from 2.6 to 3.2.

[0009] According to an embodiment of the present application, the value range of the interval between the first blocking member and the second blocking member is 15 mm - 16 mm.

[0010] According to an embodiment of the present application, from the top of the filter hopper to the bottom of the filter hopper, the cross-sectional area of the filter hopper gradually decreases.

[0011] According to an embodiment of the present application, along the height direction of the filter hopper, a filtering channel is formed in the filter hopper, and the value range of the aspect ratio of the length to the width of the outlet of the filtering channel is from 1.1 to 1.3.

[0012] According to an embodiment of the present application, there are a plurality of through holes, and the value range of the hole pitch between two adjacent through holes in the direction from the top to the bottom of the filter hopper is 7 mm - 8 mm.

[0013] According to an embodiment of the present application, the value range of the center hole pitch of the through holes perpendicular to the height direction of the filter hopper is 8 mm - 9 mm.

[0014] According to an embodiment of the present application, along the height direction of the filter hopper, at least one row of through holes is provided.

[0015] According to an embodiment of the present application, the value range of the ratio of the width to the height of the through hole is from 1.1 to 1.6.

[0016] According to an embodiment of the present application, a plurality of the through holes are provided on at least two opposite side walls of the filter hopper.

[0017] According to an embodiment of the second aspect of the present application, a dishwasher includes: a water cup, a crushing device, and the filtering device as described above. The crushing device is disposed in the water cup, and the filtering device is disposed between the inlet of the water cup and the crushing device.

[0018] According to the dishwasher of the embodiment of the present application, by arranging a filtering device between the feeding port of the water cup and the crushing device, the residue of the dishwasher can be effectively collected into the crushing area of the crushing device for crushing. At the same time, by arranging a first blocking member and a second blocking member outside the through holes of the filter hopper of the filtering device, the first blocking member and the second blocking member have a gap and the orthographic projection parts in the plane perpendicular to the axial direction of the through holes overlap. When slender objects such as toothpicks flow to the through holes, the first blocking member and the second blocking member arranged above can block the slender objects such as toothpicks to prevent them from flowing into the water path of the water cup through the through holes, avoiding water path blockage and ensuring the normal operation of the dishwasher; and at least part of the water filtered through the through holes flows into the water storage cavity and then into the overflow channel, and another part of the water directly flows into the overflow channel. These two parts of the filtered water can flow into the water path outside the filter hopper together after flowing through the overflow channel, ensuring the return water of the filtering device, so as to facilitate the dishwasher to perform cyclic spray washing.

[0019] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present application. Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will briefly introduce the drawings required for use in the description of the embodiments or the related art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is a schematic structural diagram of the water cup provided by the embodiment of the present application;

[0022] Figure 2 is Figure 1 the sectional view taken along line A-A of

[0023] Figure 3 is Figure 2 the partial enlarged view at B of

[0024] Figure 4 is one of the schematic structural diagrams of the filter hopper provided by an embodiment of the present application;

[0025] Figure 5 is another schematic structural diagram of the filter hopper provided by an embodiment of the present application;

[0026] Figure 6 is the schematic structural diagram of the filter hopper provided by another embodiment of the present application;

[0027] Figure 7 is Figure 6 the sectional view taken along line C-C of

[0028] Figure 8 It is a schematic diagram of simulating a toothpick inserted into the through hole of the filter funnel provided by an embodiment of the present application;

[0029] Reference numerals:

[0030] 1: water cup; 2: crushing device; 201: hob; 3: filter funnel; 4: through hole; 5: first blocking member;

[0031] 6: second blocking member; 7: overflow channel; 8: filtering channel; 801: discharge port; 9; step portion;

[0032] 10: water storage cavity. Detailed implementation manners

[0033] The following further describes the implementation manners of the present application in detail with reference to the drawings and embodiments. The following embodiments are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0034] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the embodiments of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0035] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0036] In the embodiments of the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is at a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is at a lower horizontal height than the second feature.

[0037] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0038] The following introduces the filtering device according to the embodiment of the first aspect of this application with reference to the accompanying drawings.

[0039] Combined Figures 1 to 8 As shown, the filtering device according to the embodiment of the first aspect of this application mainly includes a filter hopper 3 and a blocking assembly. Among them, along the height direction of the filter hopper 3, a filtering channel 8 is opened on the filter hopper 3. Residues and water to be filtered flow into the filtering channel 8 of the filter hopper 3 through the inlet of the filtering channel 8. The residues flow out through the discharge port 801 at the bottom of the filtering channel 8 or flow to the following crushing device 2 for crushing; through holes 4 are opened on the side wall of the filter hopper 3, and the through holes 4 are communicated with the filtering channel 8. The water to be filtered flows out through the through holes 4 or flows into the water path of the following water cup 1 for circulating spraying, so as to wash the tableware in the dishwasher. The specific number of the through holes 4 is not particularly limited and can be adjusted according to the actual working conditions. In the embodiment of this application, there are multiple through holes 4, and the multiple through holes 4 are at least opened on two opposite side walls of the filter hopper 3.

[0040] The blocking assembly is arranged outside the filter hopper 3 and corresponds to the through holes 4. The "corresponding" mentioned here can be understood as that the blocking assembly is arranged at the outlet of the through holes 4. There is a certain distance between the blocking assembly and the outlet of the through holes 4. By arranging the blocking assembly at the outlet position of the through holes 4 at intervals, slender objects such as toothpicks and dental floss can be blocked on the premise of not hindering the water flow, and prevent the slender objects such as toothpicks from entering the water path through the through holes 4.

[0041] In the embodiment of this application, the blocking assembly includes a first blocking member 5 and a second blocking member 6. The first blocking member 5 and the second blocking member 6 are arranged at intervals, and in a plane perpendicular to the axial direction of the through holes 4, the orthographic projection of the first blocking member 5 overlaps with the orthographic projection of the second blocking member 6 in part. A water storage cavity 10 is formed between the outer side of the filter hopper 3 and the first blocking member 5, and a flow-through channel 7 communicating with the water storage cavity 10 is formed between the first blocking member 5 and the second blocking member 6. Among them, the axial direction of the through holes 4 is the direction indicated by the dotted line in Figure 7 as shown.

[0042] According to the filtering device of the first aspect embodiment of the present application, by arranging a first blocking member 5 and a second blocking member 6 outside the through hole 4, and spacing the first blocking member 5 and the second blocking member 6 and making the orthographic projections of the two overlap in the plane perpendicular to the axial direction of the through hole 4, when slender objects such as toothpicks flow into the through hole 4, the slender objects such as toothpicks will be blocked by at least one of the first blocking member 5 and the second blocking member 6, or the slender objects such as toothpicks can also be stuck between the first blocking member 5 and the second blocking member 6, which makes the slender objects such as toothpicks unable to continue passing through the through hole 4. In this way, the filtering device provided by the first aspect embodiment of the present application can block slender objects such as toothpicks through the above-mentioned first blocking member 5 and second blocking member 6, prevent them from flowing through the through hole 4 to the waterway outside the filter hopper 3, and avoid waterway blockage; and at least part of the water filtered through the through hole 4 flows into the water storage cavity 10 and then flows into the flow-through channel 7, and another part of the water directly flows into the flow-through channel 7. These two parts of the filtered water flowing through the flow-through channel 7 can flow together into the waterway outside the filter hopper 3 to ensure the return water.

[0043] It should be understood that the flow-through channel 7 and the water storage cavity 10 in the embodiments of the present application are both communicated with the through hole 4, so that the filtered water can flow out or flow into the waterway of the following water cup 1 through the flow-through channel 7 and the water storage cavity 10 to ensure the return water.

[0044] It should be noted that since some fine particle residues may flow into the through hole 4, therefore, by arranging the water storage cavity 10 between the filter hopper 3 and the first blocking member 5, these particle residues can be precipitated and collected to achieve secondary filtration. When the water in the water storage cavity 10 spreads upward to the flow-through channel 7, it can flow out, thereby effectively improving the filtration effect; in addition, the bottom of the water storage cavity 10 can effectively block slender objects such as toothpicks. Therefore, the embodiments of the present application achieve at least two-stage filtration through the through hole 4 and the water storage cavity 10, further ensuring the filtration effect of the filtering device.

[0045] According to an embodiment of the present application, the upper opening of the water storage cavity 10 corresponds to all the through holes 4 on the filter hopper 3, so that the water storage cavity 10 can cover all the through holes 4, that is, the water flowing out of all the through holes 4 can first pass through the precipitation filtration of the water storage cavity 10 and then flow into the flow-through channel 7, further improving the filtration effect.

[0046] According to an embodiment of the present application, as Figure 3 shown, the first blocking member 5 is arranged on the side close to the filter hopper 3, and the first blocking member 5 extends from the bottom of the filter hopper 3 towards the top of the filter hopper 3. In the embodiment of the present application, the bottom of the first blocking member 5 is arranged on the top of the following crushing device 2 to form a water storage cavity 10 with the filter hopper 3. On the one hand, the water storage cavity 10 can filter water, and on the other hand, the bottom of the water storage cavity 10 can block slender objects such as toothpicks from directly falling into the waterway.

[0047] The second blocking member 6 is disposed on the side of the first blocking member 5 facing away from the filter hopper 3. The top of the second blocking member 6 is connected to the top of the filter hopper 3, and the second blocking member 6 extends toward the bottom of the filter hopper 3.

[0048] According to an embodiment of the present application, as Figure 8 shown, in the figure, Ⅰ, Ⅱ, Ⅲ, Ⅳ, and Ⅴ represent slender objects such as toothpicks. Figure 8 Five insertion angles of slender objects such as toothpicks into the through hole 4 are shown. No matter from which angle the through hole 4 is inserted, it will be blocked by the first blocking member 5 and the second blocking member 6 and cannot continue to flow out through the through hole 4. Among them, the Ⅰ toothpick is inserted vertically into the through hole 4, and the Ⅱ, Ⅲ, Ⅳ, and Ⅴ toothpicks are inserted obliquely into the through hole 4; when the side wall of the filter hopper 3 is a vertical plane, the Ⅰ toothpick cannot be inserted into the through hole 4, and only the obliquely oriented Ⅱ, Ⅲ, Ⅳ, and Ⅴ toothpicks can be inserted into the through hole 4, but they will be blocked by the first blocking member 5 and the second blocking member 6 and cannot pass through the through hole 4; when the side wall of the filter hopper 3 is an inclined surface as Figure 5 and Figure 6 shown, the vertically oriented Ⅰ toothpick also cannot be inserted into the through hole 4, and the obliquely oriented Ⅱ, Ⅲ, Ⅳ, and Ⅴ toothpicks can be inserted into the through hole 4, but they will also be blocked by the first blocking member 5 and the second blocking member 6 and cannot pass through the through hole 4. For the specific blocking method of the blocking assembly, refer to the following description.

[0049] When a slender object such as a toothpick enters the through hole 4 at the lower part of the filter hopper 3 in the direction shown by the Ⅱ toothpick in Figure 8 , the end of the slender object such as a toothpick will be blocked by the first blocking member 5, that is, the slender object such as a toothpick is stuck between the through hole 4 and the first blocking member 5. At the same time, since a water storage cavity 10 is formed on the casing at the top of the crushing device 2 and the first blocking member 5, the bottom of the water storage cavity 10 will also block the toothpick. Therefore, the slender object such as a toothpick cannot continue to flow through the through hole 4 of the filter hopper 3 to the external waterway.

[0050] When a slender object such as a toothpick enters the through hole 4 at the upper part of the filter hopper 3 in the directions shown by the Ⅲ and Ⅳ toothpicks in Figure 8 , the end of the slender object such as a toothpick will be blocked by the second blocking member 6, that is, the slender object such as a toothpick is stuck between the through hole 4 and the second blocking member 6 and cannot flow through the through hole 4 of the filter hopper 3 to the external waterway.

[0051] When a slender object such as a toothpick enters the through hole 4 at the upper part of the filter hopper 3 in the direction shown by the Ⅴ toothpick in Figure 8 , the end of the slender object such as a toothpick will be stuck between the first blocking member 5 and the second blocking member 6 and cannot flow through the through hole 4 of the filter hopper 3 to the external waterway. Therefore, by providing the above-mentioned blocking assembly outside the filter hopper 3 in the embodiment of the present application, slender objects such as toothpicks can be effectively blocked from passing through the through hole 4 at different positions.

[0052] In actual working conditions, most of the residues in the tableware are cooked residues, which are easy to sink into the water and accumulate in the crushing device 2 for crushing. Due to the buoyancy of toothpicks, some toothpicks are not easy to accumulate in front of the crushing device 2 and will float above the residues, and may flow into the waterway of the water cup 1 through the through hole 4 of the filter hopper 3, thereby jamming the washing pump and affecting its operation. Due to the influence of the water flow, toothpicks are generally inserted into the through hole 4 in the inclined ways of No. II, No. III, No. IV and No. V toothpicks. In the embodiment of the present application, in order to achieve the above-mentioned blocking effect, the height H2 of the second blocking member 6 is greater than the height H1 of the first blocking member 5. Specifically, the value range of the ratio of the height H2 of the second blocking member 6 to the height H1 of the first blocking member 5 is set to 2.6 to 3.2. For example, the height H1 of the first blocking member 5 can be 20 mm - 23 mm, and the height H2 of the second blocking member 6 can be 60 mm - 63 mm. In this way, the flow of slender objects such as toothpicks through the through hole 4 into the waterway can be limited to the greatest extent, and the water storage cavity 10 formed by the first blocking member 5 and the outer side of the filter hopper 3 and the flow-through channel 7 formed by the first blocking member 5 and the second blocking member 6 can be interconnected to ensure the water flow rate passing through, and further ensure the spray washing efficiency.

[0053] According to an embodiment of the present application, as Figure 8 shown, the value range of the interval between the first blocking member 5 and the second blocking member 6 is 15 mm - 16 mm, that is, the width W1 of the flow-through channel 7 formed by the first blocking member 5 and the second blocking member 6 is 15 mm - 16 mm. Here, it is mainly considered that the amount of water that can pass through meets the water volume requirements of the washing cycle, which can prevent the entry of slender objects such as toothpicks and ensure the water flow space, and further ensure the spray washing efficiency.

[0054] It should be understood that in the embodiment of the present application, the distance between the first blocking member 5 and the through hole 4 and the distance between the second blocking member 6 and the through hole 4 should be less than the length of slender objects such as toothpicks, so as to better block slender objects such as toothpicks.

[0055] According to an embodiment of the present application, as Figure 5 and Figure 6 shown, from the top of the filter hopper 3 to the bottom of the filter hopper 3, the cross-sectional area of the filter hopper 3 gradually decreases, so that the side wall of the filter hopper 3 is an inclined surface, which is convenient for collecting the residues into the crushing area of the following crushing device 2, and can make the water flowing out of the through hole 4 better enter the water storage cavity 10 for sedimentation filtration, further improving the filtration effect.

[0056] The specific shape of the filter hopper 3 of the present application is not particularly limited. In some embodiments, the shape of the filter hopper 3 can be frustum-shaped or prismatoid-shaped.

[0057] As Figure 6As shown, a step portion 9 is provided between the through holes 4 in the upper part and the through holes 4 in the lower part of the filter hopper 3. By providing the step portion 9, it can also play a role in blocking slender objects such as toothpicks. For example, Figure 8 No. 1 toothpick vertically inserted into the through hole 4 directly abuts against the step portion 9 and cannot enter the through hole 4.

[0058] According to an embodiment of the present application, as Figure 4 shown, the aspect ratio of the length to the width of the bottom discharge port 801 of the filter hopper 3 ranges from 1.1 to 1.3. For example, the length L of the bottom discharge port 801 of the filter hopper 3 is 70 mm - 72 mm, and the width W2 is 59 mm - 62 mm. By setting the size of the bottom discharge port 801 of the filter hopper 3, it can effectively ensure that the residue falls into the crushing area of the crushing device 2.

[0059] According to an embodiment of the present application, as Figure 4 shown, the through holes 4 of the filter hopper 3 are multiple and are spaced apart. In the direction from the top to the bottom of the filter hopper 3, the hole pitch D between two adjacent through holes 4 ranges from 7 mm to 8 mm, and the ratio of the width to the height of the through hole 4 ranges from 1.1 to 1.6. For example, the width W3 of the through hole 4 is 7 mm - 8 mm, and the height H3 of the through hole 4 is 5 mm - 6 mm. Since the size of the toothpick after being sufficiently cut and crushed is within 5 mm, it is allowed to enter the through hole 4 of the filter hopper 3. By setting the size of the through hole 4 in the present application, it can effectively prevent uncrushed toothpicks from entering and can appropriately allow toothpicks that have been sufficiently crushed to enter.

[0060] According to an embodiment of the present application, the center hole pitch between two adjacent through holes 4 perpendicular to the height direction of the filter hopper 3 ranges from 8 mm to 9 mm, which can effectively prevent uncrushed toothpicks from entering.

[0061] According to an embodiment of the present application, along the height direction of the filter hopper 3, at least one row of through holes 4 is provided. In this example, the through holes 4 are provided in two rows to improve the filtering effect.

[0062] According to an embodiment of the present application, multiple through holes 4 are provided on at least two opposite side walls of the filter hopper 3 to improve the backwater and filtering efficiency.

[0063] According to an embodiment of the present application, as Figure 7 shown, the first blocking member 5 and the second blocking member 6 can be baffles that block all the through holes 4 along the height direction of the filter hopper 3.

[0064] The "height direction of the filter hopper 3" mentioned in the text can be understood as the direction from the feed inlet of the filter hopper 3 to the discharge port 801. As Figure 2 、 Figure 3As shown, the filter hopper 3 is vertically placed, so the height direction of the filter hopper 3 is the vertical direction. In other usage scenarios, the filter hopper 3 can also be placed obliquely or horizontally. When the filter hopper 3 is placed obliquely or horizontally, the height direction of the filter hopper 3 changes synchronously with the adjustment of the filter hopper 3.

[0065] The dishwasher according to the second aspect embodiment of the present application mainly includes: an inner container (not shown in the figure), a water cup 1, a crushing device 2, and a filtering device. A tableware rack is provided at the upper part inside the inner container to place tableware. A water cup 1 is provided at the bottom inside the inner container. A waterway is provided inside the water cup 1. A spray arm and a washing pump are provided on the water cup 1 and are connected to the waterway. The washing pump sends the water in the waterway to the spray arm, and then sprays and rinses the tableware.

[0066] As Figures 1 - 3 shown, the crushing device 2 is arranged inside the water cup 1 and below the feeding port of the water cup 1. The filtering device is arranged between the feeding port of the water cup 1 and the crushing device 2. Specifically, the filter hopper 3 of the filtering device is provided with a filtering channel 8. The inlet of the filtering channel 8 is connected to the feeding port of the water cup 1, and the discharge port 801 of the filtering channel 8 extends to the crushing area above the crushing device 2 inside the water cup 1. Residues and water to be filtered enter the filter hopper 3 through the feeding port of the water cup 1. On the one hand, the filter hopper 3 can effectively collect the residues of the dishwasher into the crushing area of the crushing device 2 for crushing. On the other hand, the water to be filtered can flow into the waterway inside the water cup 1 after being filtered through the through holes 4 of the filter hopper 3, ensuring the return water for the dishwasher to perform cyclic spray rinsing.

[0067] In an embodiment of the present application, the crushing device 2 includes a housing and a hob assembly. The housing is fixed inside the cavity of the water cup 1. The hob assembly includes two groups of hobs 201 and a driving motor (not shown in the figure). The two groups of hobs 201 are arranged side by side left and right on the housing. The driving motor is respectively connected to the two groups of hobs 201 to drive the two groups of hobs 201 to rotate towards each other to form a crushing area between the two groups of hobs 201. The crushing area is located at the discharge port 801 at the bottom of the filter hopper 3 to crush the residues collected in the filtering device.

[0068] In an embodiment of the present application, as Figure 3As shown, the arrow indicates the water flow. Residues and water to be filtered flow into the filtering device through the feeding port of the water cup 1, and then enter the crushing area of the crushing device 2 and are crushed. Since the cutting speed of the hob 201 is not that fast, when there are too many residues to be crushed, they will accumulate above the hob 201. At this time, lighter objects (mainly slender objects such as toothpicks) will float near the through-hole 4 of the filter hopper 3, and then flow into the through-hole 4 of the filter hopper 3 and are blocked by the blocking component. And part of the water flow will also flow towards the through-hole 4. Large-volume blocky residues cannot enter the through-hole 4, but continue to sink towards the hob 201 under the action of gravity. Some finely divided granular residues may flow through the through-hole 4 and then further enter the water storage cavity 10 for sedimentation filtration. The filtered water enters the water path of the water cup through the flow channel 7 and is then pumped into the washing pump for spray washing. Therefore, the present application can not only ensure residue crushing, but also ensure the circulation of water in the dishwasher.

[0069] For the dishwasher according to the embodiment of the present application, by arranging a filtering device between the feeding port of the water cup 1 and the crushing device 2, the residues of the dishwasher can be effectively collected into the crushing area of the crushing device 2 for crushing. At the same time, by arranging a first blocking member 5 and a second blocking member 6 outside the through-hole 4 of the filter hopper 3 of the filtering device, the first blocking member 5 and the second blocking member 6 have a gap and the orthographic projection parts in the plane perpendicular to the axis of the through-hole 4 overlap. When slender objects such as toothpicks flow to the through-hole 4, the first blocking member 5 and the second blocking member 6 arranged above can block the slender objects such as toothpicks to prevent them from flowing into the water path of the water cup 1 through the through-hole 4, avoiding water path blockage and ensuring the normal operation of the dishwasher. And at least part of the water filtered through the through-hole 4 flows to the water storage cavity 10 and then flows into the flow channel 7, and another part of the water directly flows into the flow channel 7. These two parts of the filtered water flow through the flow channel 7 and can flow together to the water path outside the filter hopper 3, ensuring the return water of the filtering device, so as to facilitate the dishwasher to perform cyclic spray washing.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A filtering device, characterized in that, include: A filter bucket, wherein a through hole is formed on a side wall of the filter bucket; a blocking component, arranged at the outer side of the filter bucket and corresponding to the through hole, the blocking component comprising a first blocking member and a second blocking member arranged at intervals, wherein in a plane perpendicular to the axial direction of the through hole, the orthographic projection of the first blocking member partially overlaps with the orthographic projection of the second blocking member, a water storage cavity is formed between the outer side of the filter bucket and the first blocking member, and a flow passage communicating with the water storage cavity is formed between the first blocking member and the second blocking member; A step portion is provided between the through hole at the upper part and the through hole at the lower part of the filter bucket.

2. The filtering device according to claim 1, characterized in that, The first blocking member extends from the bottom of the filter bucket toward the top of the filter bucket; The second blocking member is arranged on a side of the first blocking member facing away from the filter funnel, and a top of the second blocking member is connected to the filter funnel and extends toward a bottom of the filter funnel.

3. The filtering device according to claim 2, wherein The ratio of the height of the second blocking member to the height of the first blocking member ranges from 2.6 to 3.

2.

4. The filtering device according to claim 2, characterized in that, The interval between the first blocking member and the second blocking member ranges from 15 mm to 16 mm.

5. The filtering device according to any one of claims 1-4, characterized in that, The cross-sectional area of the filter funnel gradually decreases from the top of the filter funnel to the bottom of the filter funnel.

6. The filtering device according to claim 5, characterized in that A filter channel is formed in the filter bucket along the height direction of the filter bucket, and the length-to-width ratio of the filter channel discharge port is in the range of 1.1 to 1.

3.

7. The filtering device according to any one of claims 1-4, characterized in that, There are multiple through holes, and the hole distance between two adjacent through holes from the top to the bottom of the filter bucket ranges from 7mm to 8mm.

8. The filtering device according to claim 7, characterized in that, The center hole spacing of the through holes perpendicular to the height direction of the filter bucket ranges from 8 mm to 9 mm.

9. The filtering device according to claim 7, characterized in that, Along the height direction of the filter bucket, at least one row of through holes is arranged.

10. The filtering device according to claim 7, characterized in that, The ratio of the width to the height of the through hole ranges from 1.1 to 1.

6.

11. The filtering device according to claim 7, wherein, The plurality of through holes are arranged on at least two opposite side walls of the filter bucket.

12. A dishwasher, characterized in that, include: A water cup, a crushing device and a filtering device according to any one of claims 1 to 11, wherein the crushing device is arranged in the water cup, and the filtering device is arranged between the feed inlet of the water cup and the crushing device.

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