Dish washing machine

Abstract

The utility model discloses a dish-washing machine, and relates to the technical field of kitchen and bath machinery, and aims to solve the safety and sanitation problems of the dish-washing machine, the dish-washing machine can comprise an inner container, a water cup, a first draining pump and a filtering assembly, the inner container is provided with a washing cavity, the washing cavity is used for washing a piece to be washed, the water cup is connected to the bottom of the inner container, and the water cup is provided with a water storage tank; the water storage tank is communicated with the washing cavity, the first draining pump is communicated with the water storage tank, and the filtering assembly is arranged in the water storage tank and used for filtering residues in washing water. Wherein the filtering assembly can comprise a first filtering part and a second filtering part, the first filtering part is arranged in the water storage tank and detachably connected to the water cup, the second filtering part is connected to the water cup and located on the side, away from the inner container, of the first filtering part, and washing water sequentially flows through the first filtering part and the second filtering part and enters the first draining pump. The dish-washing machine can effectively improve safety and sanitation of the dish-washing machine.

Description

Technical Field

[0001] This application relates to the technical field of kitchen and bathroom appliances, and particularly to a dishwasher. Background Art

[0002] With the continuous improvement of people's living standards, household dishwashers have gradually entered many families, replacing the tedious labor of manual dishwashing, improving the dishwashing efficiency and effect, and bringing convenience to people's home life.

[0003] In related technologies, a water cup and a filtering structure are provided below the washing cavity of the dishwasher. A circulation water pump transports the washing water in the water cup to the spray arm in the washing cavity. The spray arm sprays the washing water towards the tableware, flushing the residue from the tableware along with the washing water. After flushing, the washing water then flows through the filtering structure. The filtering structure can filter out the residue from the washing water and discharge the washing water through a drainage pump. Generally, the filtering structure is a single-layer structure. Since the residue on the filtering structure increases with the usage time of the dishwasher, excessive residue will accumulate directly above and around the filtering structure.

[0004] However, when the user removes the filtering structure for cleaning, the residue around the filtering structure often falls into the water collecting cup, resulting in the blockage and failure of the vacuum pump used to suck the washing water in the water collecting cup. The remaining washing water that is not drained clean is prone to breeding bacteria and contaminating the tableware placed in the dishwasher, causing safety and hygiene problems in the dishwasher. Utility Model Content

[0005] The purpose of this utility model is to provide a dishwasher, aiming to solve the safety and hygiene problems existing in the dishwasher.

[0006] To achieve the above object, this utility model adopts the following technical solutions:

[0007] This utility model provides a dishwasher, which may include an inner container, a water cup, a first drainage pump, and a filtering assembly. The inner container has a washing cavity for washing items to be washed. The water cup is connected to the bottom of the inner container. The water cup is provided with a water storage tank, and the water storage tank is communicated with the washing cavity. The first drainage pump is communicated with the water storage tank. The filtering assembly is arranged in the water storage tank for filtering out the residue in the washing water. Among them, the filtering assembly may include a first filter element and a second filter element. The first filter element is arranged in the water storage tank and is detachably connected to the water cup. The second filter element is connected to the water cup and is located on the side of the first filter element away from the inner container. The washing water flows through the first filter element and the second filter element in sequence and enters the first drainage pump.

[0008] When the first filter element in the present application is disassembled and cleaned of residues, the second filter element can play a temporary protection role, preventing the residues above and around the first filter element from directly falling into the first drainage pump, which may cause the first drainage pump for sucking the washing water in the water storage tank to be blocked and fail. Therefore, the filter assembly in the dishwasher provided in the present application can ensure the normal operation of the first drainage pump, drain the residual washing water in the water storage tank completely, and prevent bacteria, fungi and other harmful substances from breeding in the residual washing water, resulting in peculiar smell in the dishwasher or contamination of the tableware placed in the dishwasher, thereby improving the safety and hygiene conditions of the dishwasher and the user experience.

[0009] In some embodiments of the present application, the first filter element includes a first filtering portion, and a plurality of first filtering holes are arranged on the first filtering portion; the surface of the first filtering portion facing away from the second filter element protrudes in the direction from the second filter element towards the inner liner, and along the center of the first filtering portion pointing to the edge of the first filtering portion, the protruding height of the surface of the first filtering portion facing away from the second filter element gradually decreases to form a side sliding surface for the residues to slide.

[0010] In some embodiments of the present application, the first filter element further includes a drainage assisting portion, one end of the drainage assisting portion is connected to the first filtering portion, and the other end of the drainage assisting portion can abut against the second filter element to form a water inlet cavity. Among them, a drainage assisting hole is provided at the end of the drainage assisting portion facing the second filter element, and the drainage assisting hole communicates the water cup and the water inlet cavity.

[0011] In some embodiments of the present application, an installation cavity is provided on the bottom wall of the water cup, the second filter element includes a second filtering portion and a lifting portion, the second filtering portion is arranged in the installation cavity, and a plurality of second filtering holes are arranged on the second filtering portion, and the aperture of the second filtering hole is not larger than the aperture of the first filtering hole; the lifting portion is connected to the side of the second filtering portion facing the first filter element.

[0012] In some embodiments of the present application, the first filter element further includes a connecting portion, one end of the connecting portion is connected to the first filtering portion; the filter assembly further includes a third filter element, the third filter element is configured as a cylindrical structure and includes an input end and an output end, the input end is communicated with the washing cavity, and a protective rod is provided at the input end; the output end is connected to the other end of the connecting portion, so that the output end is spaced apart from the first filtering portion to form a residue outlet communicating with the side sliding surface.

[0013] In some embodiments of the present application, the filter assembly further includes a fourth filter element, the fourth filter element is detachably connected to the bottom wall of the water cup, and the fourth filter element is sleeved on the third filter element to form a residue containing cavity communicating with the residue outlet.

[0014] In some embodiments of the present application, the third filter member further includes a coarse filter cylinder, on which a plurality of third filter holes are arranged at intervals. The third filter holes communicate the inner cavity of the coarse filter cylinder with the slag-containing cavity. Among them, the aperture of the third filter holes is larger than that of the first filter holes.

[0015] In some embodiments of the present application, the fourth filter member includes a fine filter cylinder, a first connecting portion and a second connecting portion. The fine filter cylinder is sleeved on the coarse filter cylinder, and a plurality of fourth filter holes are arranged at intervals on the fine filter cylinder. The fourth filter holes communicate the slag-containing cavity and the water cup; the first connecting portion is arranged at the upper end of the fine filter cylinder and is connected to the input end of the coarse filter cylinder; the second connecting portion is arranged at the lower end of the fine filter cylinder and is threadedly connected to the bottom wall of the water cup; among them, the aperture of the fourth filter holes is smaller than that of the first filter holes.

[0016] In some embodiments of the present application, the water cup is provided with a drain port, and the dishwasher further includes a second drain pump, which is communicated with the drain port; a communication hole facing the drain port is opened at the bottom of the second connecting portion, and a filter screen is arranged on the communication hole.

[0017] The present utility model provides a dishwasher, which includes an inner container, a water cup, a first drain pump and a filter assembly. The inner container has a washing cavity for spraying washing water onto the items to be washed; the water cup is communicated with the washing cavity, and a water collecting cavity is formed at the bottom of the water cup; the first drain pump is communicated with the water collecting cavity; the filter assembly is used for filtering out residues in the washing water. Among them, the filter assembly includes a first filter member and a second filter member. The first filter member is detachably connected to the water cup; the second filter member is used for enabling the washing water to flow through the first filter member and the second filter member in sequence and enter the water collecting cavity.

[0018] In the present application, the second filter member can play a temporary protection role when the first filter member is disassembled and cleaned of residues, avoiding the residues above and around the first filter member from directly falling into the water collecting cavity, resulting in the blockage and failure of the first drain pump for sucking the washing water in the water collecting cavity. Therefore, the filter assembly in the dishwasher provided by the present application can ensure the normal operation of the first drain pump, drain out the residual washing water converged in the water collecting cavity, and avoid the growth of bacteria, fungi and other harmful substances in the residual washing water, resulting in peculiar smell in the dishwasher or contamination of the tableware placed in the dishwasher, thereby improving the safety and hygiene conditions of the dishwasher and the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are used to provide a further understanding of the technical solutions of the present utility model, and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solutions of the present utility model, and do not constitute a limitation to the technical solutions of the present utility model.

[0020] Figure 1 Fig. 1 shows one of the structural schematic diagrams of the dishwasher provided by the embodiments of the present application;

[0021] Figure 2 Shows one of the schematic structural diagrams of the spray assembly provided by the embodiments of the present application;

[0022] Figure 3 Shows another schematic structural diagram of the spray assembly provided by the embodiments of the present application;

[0023] Figure 4 Shows another schematic structural diagram of the dishwasher provided by the embodiments of the present application;

[0024] Figure 5 Shows Figure 4 The schematic cross-sectional structure diagram at position A-A;

[0025] Figure 6 Shows one of the schematic structural diagrams of the filter assembly provided by the embodiments of the present application;

[0026] Figure 7 Shows Figure 6 The enlarged schematic structural diagram at position B;

[0027] Figure 8 Shows one of the schematic diagrams of the filter assembly of the embodiments of the present application for disassembling and cleaning residues

[0028] Figure 9 Shows the schematic structural diagram of the water cup provided by the embodiments of the present application;

[0029] Figure 10 Shows another schematic structural diagram of the filter assembly provided by the embodiments of the present application;

[0030] Figure 11 Shows another schematic structural diagram of the filter assembly provided by the embodiments of the present application;

[0031] Figure 12 Shows another schematic structural diagram of the filter assembly provided by the embodiments of the present application;

[0032] Figure 13 Shows another schematic structural diagram of the filter assembly provided by the embodiments of the present application;

[0033] Figure 14 Shows Figure 13 The schematic cross-sectional structure diagram at position C-C;

[0034] Figure 15 Shows another schematic diagram of the filter assembly of the embodiments of the present application for disassembling and cleaning residues;

[0035] Figure 16 Shows another schematic structural diagram of the filter assembly provided by the embodiments of the present application;

[0036] Figure 17 Shows the third schematic structural diagram of the dishwasher provided by the embodiment of the present application;

[0037] Figure 18 Shows the fourth schematic structural diagram of the dishwasher provided by the embodiment of the present application.

[0038] Reference numerals:

[0039] 1, Dishwasher;

[0040] 10, Inner container; 11, Washing cavity; 12, Bowl basket assembly; 121, First bowl basket; 122, Second bowl basket; 13, Spraying assembly; 131, Spraying pipe; 132, Connecting shaft; 1320, Water outlet hole; 133, Spraying arm; 1330, Spraying hole;

[0041] 20, Water cup; 21, Water collection cavity; 210, Drainage hole; 22, Installation cavity; 221, First installation cavity; 222, Second installation cavity; 223, Drainage port;

[0042] 30, Filtering assembly;

[0043] 31, First filtering element; 311, First filtering part; 3111, First filtering hole; 3112, Side sliding surface; 312, Drainage assisting part; 3121, Drainage assisting hole; 313, Water inlet cavity; 313, Connecting part; 3131, First hook; 3132, Second hook; 3133, Connecting rod; 314, Residue outlet;

[0044] 32, Second filtering element; 321, Second filtering part; 3211, Second filtering hole; 322, Abutting part; 323, Lifting part;

[0045] 33, Third filtering element; 331, Input end; 3310, Clamping hole; 332, Output end; 333, Protection rod; 334, Coarse filtering cylinder; 3341, Third filtering hole; 335, Rotating handle; 336, Connecting clamping plate;

[0046] 34, Fourth filtering element; 341, Residue containing cavity; 342, Fine filtering cylinder; 3421, Fourth filtering hole; 343, First connecting part; 344, Second connecting part; 345, Connecting hole;

[0047] 2, Residue. Detailed implementation manners

[0048] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0049] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0050] The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise stated, the meaning of "a plurality" is two or more.

[0051] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. Additionally, when describing pipelines, the terms "connected" and "coupled" used in the present application have the meaning of conducting. The specific meaning needs to be understood in combination with the context.

[0052] In the embodiments of the present utility model, the term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, such that a process, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, article or device comprising such element.

[0053] In the embodiments of the present application, "about", "substantially" or "approximately" includes the recited value and an average within an acceptable deviation range of the recited value, where the acceptable deviation range is determined by those of ordinary skill in the art in view of the measurements being discussed and the errors associated with the measurement of a particular quantity (i.e., the limitations of the measurement system).

[0054] In the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or more advantageous than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0055] With the continuous improvement of people's living standards, household dishwashers have gradually entered many families, replacing the cumbersome labor of manual dishwashing, improving the cleaning efficiency and effect of tableware, and bringing convenience to people's home life.

[0056] In the related art, a water cup and a filtering structure are arranged below the washing cavity of the dishwasher. The circulating water pump conveys the washing water in the water cup to the spray arm in the washing cavity. The spray arm sprays the washing water towards the tableware, flushing the residue from the tableware along with the washing water. After flushing, the washing water flows through the filtering structure again. The filtering structure can filter out the residue from the washing water and discharge the washing water through the drain pump out of the dishwasher. Generally, the filtering structure is a single-layer structure. Since the residue on the filtering structure will increase with the use time of the dishwasher, excessive residue will accumulate directly above and around the filtering structure.

[0057] However, when the user removes the filtering structure for cleaning, the residue around the filtering structure often falls into the water collecting cup, resulting in the blockage and failure of the vacuum pump for sucking the washing water in the water collecting cup. The remaining washing water that is not drained completely is prone to breed bacteria and contaminate the tableware placed in the dishwasher, making the dishwasher have safety and hygiene problems.

[0058] Based on this, the present application provides a dishwasher, which can effectively improve the safety and hygiene conditions of the dishwasher. The specific structure and functions of the dishwasher provided by the present application will be described in detail below with reference to the accompanying drawings of the specification.

[0059] Figure 1 One of the structural schematic diagrams of the dishwasher provided by the embodiments of the present application is shown. Refer to Figure 1 , the present utility model provides a dishwasher 1, which may include an inner container 10. There is a washing cavity 11 inside the inner container 10. The washing cavity 11 is used for cleaning the items to be washed. The items to be washed may include tableware such as bowls, plates, tea cups, chopsticks, spoons or forks and knives.

[0060] In order to effectively clean the items to be washed in the washing cavity 11, in some embodiments of the present application, as Figure 1 shown, a bowl basket assembly 12 is arranged in the washing cavity 11. The bowl basket assembly 12 may include a first bowl basket 121 and a second bowl basket 122 arranged vertically.

[0061] In this way, the items to be washed can be classified and placed in the bowl basket assembly 12. For example, bowls, plates or teacups can be placed in the upper first bowl basket 121, and chopsticks, spoons or forks can be placed in the lower second bowl basket 122, which is convenient for the user to store and organize after the washing is completed.

[0062] Continue to refer to Figure 1 , a spraying assembly 13 is further provided in the washing cavity 11. The spraying assembly 13 can spray washing water towards the bowl basket assembly 12 to clean the tableware in the bowl basket assembly 12. The spraying assembly 13 can also be set in multiple groups, and the multiple groups of spraying assemblies 13 spray washing water towards the bowl basket assembly 12 from different directions, thereby improving the cleaning effect on the tableware.

[0063] Figure 2 Fig. 1 shows one of the structural schematic diagrams of the spraying assembly provided by the embodiment of the present application. Refer to Figure 2 , the spraying assembly 13 can include a spraying pipe 131. One end of the spraying pipe 131 is used to connect to the washing water, and the other end of the spraying pipe 131 can spray out the washing water.

[0064] Figure 3 Fig. 2 shows another structural schematic diagram of the spraying assembly provided by the embodiment of the present application. Refer to in combination with Figure 2 and Figure 3 In some embodiments of the present application, the spraying assembly 13 can further include a connecting shaft 132. The other end of the spraying pipe 131 is connected to the connecting shaft 132, and a plurality of water outlet holes 1320 communicating with the spraying pipe 131 are provided on the outer peripheral surface of the connecting shaft 132. The connection manner between the spraying pipe 131 and the connecting shaft 132 can be a threaded connection, a clamping connection or a welding connection, etc., which is not limited herein as long as the relative positions of the two can be fixed.

[0065] Continue to refer to Figure 2 and Figure 3 , in some embodiments of the present application, the spraying assembly 13 can further include a spraying arm 133. The spraying arm 133 is rotatably connected to the connecting shaft 132. A water storage cavity communicating with the water outlet holes 1320 is formed inside the spraying arm 133, and a plurality of spraying holes 1330 communicating with the water storage cavity are spaced on the surface of the spraying arm 133.

[0066] Understandably, after the washing water in the spray pipe 131 enters the connecting shaft 132, it is injected into the water storage cavity in the spray arm 133 through the water outlet holes 1320 on the connecting shaft 132. When the water pressure in the water storage cavity reaches a certain level, the washing water can be sprayed out from the spray holes 1330 on the spray arm 133. The sprayed washing water can decompose or emulsify the grease on the tableware, and use the impact force of the water flow to wash away the residue on the tableware (i.e., rice grains, dough, minced vegetable leaves, minced meat, grease, etc.). In addition, since the spray arm 133 can rotate around the connecting shaft 132, the spraying range of the washing water can fully cover the bowl basket assembly 12 (such as Figure 1 as shown), so as to ensure the effective cleaning of the tableware in the bowl basket assembly 12.

[0067] The above describes the washing cavity 11 and the washing method of the dishwasher 1 provided in the present application. While the washing water washes away the residue on the tableware, the residue will flow with the washing water. In order to protect the safe operation of the drainage pump in the dishwasher 1, the washing water needs to be filtered by the filter assembly 30 before being discharged, and then discharged from the dishwasher 1. The following will detail the filter assembly 30 of the present application and the related part structures.

[0068] Figure 4 shows the second structural schematic diagram of the dishwasher provided in the embodiment of the present application. Referring in combination to Figure 1 and Figure 4 , in some embodiments of the present application, the dishwasher 1 may further include a water cup 20. The water cup 20 is arranged at the bottom of the inner liner 10, and the water storage tank in the water cup 20 is communicated with the washing cavity 11. In this way, the washing water that has completed flushing in the washing cavity 11 can carry the residue and fall into the water cup 20.

[0069] Continuing to refer to Figure 4 , in some embodiments of the present application, the dishwasher 1 may further include a filter assembly 30. The filter assembly 30 is arranged in the water cup 20 and is used to filter and hold the residue in the above-mentioned washing water.

[0070] Continuing to refer to Figure 4 , in some embodiments of the present application, a water collection cavity 21 is formed at the bottom of the water cup 20. The washing water filtered by the filter assembly 30 and the residual water in the water cup 20 can flow to the water collection cavity 21 and be discharged from the dishwasher 1 through the first drainage pump communicated with the water collection cavity 21. The type of the first drainage pump here can be a vacuum pump, a centrifugal pump, a plunger pump, a turbine pump, etc.

[0071] Figure 5 shows Figure 4 the sectional structure schematic diagram at position A-A, Figure 6 shows the first structural schematic diagram of the filter assembly 30 provided in the embodiment of the present application, Figure 7shows Figure 6 a schematic enlarged view of the structure at position B, with reference to Figure 5 、 Figure 6 and Figure 7 , in some embodiments of the present application, the filtering assembly 30 may include a first filter element 31, and the first filter element 31 is detachably connected to the water cup 20. The specific manner of the detachable connection may be snap connection or threaded connection, etc.

[0072] Continuing to refer to Figure 5 、 Figure 6 and Figure 7 , in some embodiments of the present application, the filtering assembly 30 may further include a second filter element 32. The second filter element 32 is disposed at the bottom of the water cup 20 and is located between the water collection cavity 21 and the first filter element 31, such that the washing water carrying residues can first flow through the first filter element 31, then through the second filter element 32, and then be collected in the water collection cavity 21, and finally discharged from the dishwasher 1 through the drain hole 210 formed on the water collection cavity 21.

[0073] It can be understood that as the usage duration of the dishwasher 1 increases, when the washing water continuously passes through the first filter element 31 and the second filter element 32, the residues filtered out will accumulate above the first filter element 31 and between the first filter element 31 and the second filter element 32. When there are too many residues, it will affect the filtering effect of the first filter element 31 and the second filter element 32, and at the same time, it may also cause blockage of the first filter element 31 and the second filter element 32, which is not conducive to the discharge of the washing water. Therefore, it is necessary to clean the residues in a timely manner.

[0074] Figure 8 shows one of the schematic diagrams of disassembling and cleaning the residues of the filtering assembly provided by the embodiments of the present application, with reference to Figure 5 and Figure 8 , based on the filtering assembly 30 provided by the present application, during the process of cleaning the residues 2, the first filter element 31 can be detached from the water cup 20, and the second filter element 32 remains above the water collection cavity 21. During the disassembly process, the residues 2 on the first filter element 31 can fall onto the second filter element 32 under the action of internal and external forces. Here, the internal and external forces include the vibration caused by the shaking of the cleaner's hand, the inclination of the second filter element 32 resulting in the residues 2 being affected by their own gravity, and the unstable acting forces existing between the residues 2, etc.

[0075] In addition, the area originally around the upper part of the first filter element 31 (i.e., the peripheral area adjacent to the directly upper area of the first filter element 31) will be driven and fall onto the second filter element 32 under the action of friction when the first filter element 31 is pulled out.

[0076] Understandably, the second filter element 32 in the present application can play a temporary protection role when the first filter element 31 is disassembled to clean the residue 2, preventing the residue 2 above and around the first filter element 31 from directly falling into the water collection chamber 21 and causing the first drain pump for sucking the washing water in the water collection chamber 21 to become blocked and ineffective.

[0077] Therefore, the filter assembly 30 provided in the present application can ensure the normal operation of the first drain pump, drain the residual washing water converged in the water collection chamber 21 completely, and prevent bacteria, fungi and other harmful substances from breeding in the residual washing water, resulting in peculiar smell in the dishwasher 1 or contamination of the tableware placed in the dishwasher 1, thereby improving the safety and hygiene condition of the dishwasher 1 and the user experience.

[0078] It should be noted that the residue 2 falling on the second filter element 32 can be removed by further cleaning after the first filter element 31 is removed. The specific cleaning method can be a brush or a vacuum cleaner, etc., which is not limited here.

[0079] Continue to refer to Figure 7 , in some embodiments of the present application, the first filter element 31 may include a first filtering part 311, and a plurality of first filtering holes 3111 are arranged on the first filtering part 311. The shape of the first filtering holes 3111 can be circular, triangular, rectangular or other polygons, etc. In this way, the residue in the washing water with a diameter smaller than the first filtering holes 3111 and not affecting the first drain pump can pass through the first filtering holes 3111, and the residue in the washing water with a diameter larger than the first filtering holes 3111 is intercepted outside the first filtering holes 3111.

[0080] Combined with referring to Figure 1 and Figure 7 , the surface of the first filtering part 311 facing away from the second filter element 32 protrudes in the direction from the second filter element 32 towards the inner tank 10, and along the center of the first filtering part 311 pointing to the edge of the first filtering part 311, the protruding height of the surface of the first filtering part 311 facing away from the second filter element 32 gradually decreases to form a side sliding surface 3112 for the residue to slide.

[0081] It should be noted that the side sliding surface 3112 here can be an arc surface structure (i.e., the first filtering part 311 is a hemisphere or a cone) or a plane structure (i.e., the first filtering part 311 is a polygonal cone), as long as one end of the side sliding surface 3112 is relatively high and the other end is relatively low, so that the residue can slide out along the side sliding surface 3112 under the action of its own gravity.

[0082] Understandably, in the present application, the residue can be timely removed from the first filtration holes 3111 through the above-mentioned side-sliding surface 3112, preventing excessive accumulation of residue from clogging the first filtration holes 3111, thereby extending the cleaning cycle of the dishwasher 1.

[0083] With reference to Figure 5 and Figure 7 in some embodiments of the present application, the first filter member 31 further includes a drainage assisting portion 312. One end of the drainage assisting portion 312 is connected to the first filtration portion 311, and the other end of the drainage assisting portion 312 can abut against the second filter member 32 to enclose and form a water inlet cavity 3122. Wherein, a drainage assisting hole 3121 is provided at the end of the drainage assisting portion 312 facing the second filter member 32, and the drainage assisting hole 3121 communicates the water cup 20 and the water inlet cavity 3122.

[0084] Understandably, when most of the washing water in the water cup 20 is drained, since the liquid level of a part of the washing water is lower than the first filtration portion 311, this part of the washing water cannot enter the water collection cavity 21 through the first filtration holes 3111 and be pumped out by the first drainage pump, becoming the residual washing water staying at the bottom of the water cup 20.

[0085] However, in the present application, the residual washing water staying at the bottom of the water cup 20 can be introduced into the water inlet cavity 3122 through the drainage assisting holes 3121 provided at the bottom of the drainage assisting portion 312, and then enter the water collection cavity 21 after being filtered by the second filter member 32, so that it can be pumped out of the dishwasher 1 by the first drainage pump. Thus, after the dishwasher 1 is used, the residual washing water in the water cup 20 can be completely drained, avoiding the growth of bacteria, fungi and other harmful substances in the residual washing water, resulting in peculiar smell in the dishwasher 1 or contamination of the tableware placed in the dishwasher 1, thereby improving the safety and hygiene conditions of the dishwasher 1 and the user experience.

[0086] Figure 9 shows a schematic structural diagram of the water cup 20 provided by an embodiment of the present application. With reference to Figure 9 in some embodiments of the present application, an installation cavity 22 is provided on the bottom wall of the water cup 20, and the installation cavity 22 is located above the water collection cavity 21.

[0087] Figure 10 shows a second schematic structural diagram of the filter assembly 30 provided by an embodiment of the present application. With reference to Figure 7 , Figure 9 and Figure 10, in some embodiments of the present application, the second filter element 32 may include a second filter portion 321. The second filter portion 321 is disposed in the installation cavity 22, and a plurality of second filter holes 3211 are arranged on the second filter portion 321. The aperture diameter of the second filter holes 3211 is not greater than that of the first filter holes 3111. Similarly to the first filter holes 3111, the shape of the second filter holes 3211 may also be circular, triangular, rectangular or other polygons, etc.

[0088] In this way, the residue 2 passing through the first filter holes 3111 can be further filtered by the second filter portion 321, so that the residue 2 with a diameter smaller than the second filter holes 3211 can enter the water collection cavity 21, while the residue 2 with a diameter larger than the second filter holes 3211 is intercepted outside the second filter portion 321, thereby further reducing the risk of blockage of the first drain pump.

[0089] Continue to refer to Figure 9 and Figure 10 , in some embodiments of the present application, the installation cavity 22 may include a first installation cavity 221 for accommodating the second filter portion 321. The second filter portion 321 may be a cylindrical plate, a rectangular plate or a polygonal plate, etc., and the shape of the first installation cavity 221 changes adaptively with the shape of the second filter portion 321.

[0090] Continue to refer to Figure 9 and Figure 10 , in order to enhance the installation stability of the second filter element 32, in some possible structural designs, the second filter element 32 may further include a plurality of abutting portions 322 provided on the outer peripheral surface of the second filter portion 321. The installation cavity 22 may further include a second installation cavity 222 communicating with the first installation cavity 221. When the second filter portion 321 is installed in the first installation cavity 221, the abutting portions 322 are also installed in the second installation cavity 222. The abutting portions 322 may be provided as stepped bumps, cylindrical rod bumps or rectangular rod bumps, etc., and the shape of the second installation cavity 222 changes adaptively with the shape of the abutting portions 322.

[0091] In this way, when the second filter element 32 has a tendency to rotate under the impact force of the washing water, the abutting portions 322 can abut against the second accommodating cavity, restricting the rotation tendency of the second filter element 32, thereby ensuring the installation stability of the second filter element 32.

[0092] In some other possible structural designs, it may also be that grooves are provided on the second filter portion 321, and bumps cooperating with the grooves are provided at the bottom of the water cup 20. In this way, the rotation tendency of the second filter element 32 can also be restricted, ensuring the installation stability of the second filter element 32.

[0093] Combined with reference to Figure 7 , Figure 9and Figure 10 In some embodiments of the present application, the second filter member 32 may further include a lifting portion 323, and the lifting portion 323 is connected to a side of the second filter portion 321 facing the first filter portion 311. The lifting portion 323 may be configured as a bump structure, and the bump is installed at the center position of the second filter portion 321, or may be configured as a suspension cord structure, one end of the suspension cord is connected to one side of the second filter portion 321, and the other end of the suspension cord is connected to the other side of the second filter portion 321.

[0094] In this way, when it is necessary to take out the second filter member 32 from the installation cavity 22 of the water cup 20, the operator can conveniently take it out by pulling the suspension cord or pinching the bump, preventing the second filter member 32 from being too deeply trapped in the installation cavity 22 and causing the phenomenon that it cannot be taken out.

[0095] Figure 11 Fig. 3 shows a third structural schematic diagram of the filter assembly provided by the embodiment of the present application. Figure 12 Fig. 4 shows a fourth structural schematic diagram of the filter assembly provided by the embodiment of the present application. Referring in combination to Figure 11 and Figure 12 In some embodiments of the present application, the filter assembly 30 further includes a third filter member 33. The third filter member 33 is configured as a cylindrical structure and includes an input end 331. The input end 331 is communicated with the washing cavity 11 (as Figure 1 shown), and a protective rod 333 is provided at the input end 331.

[0096] In this way, the washing water after the washing process in the washing cavity 11 can enter the third filter member 33 from the input end 331, and the protective rod 333 at the input end 331 can prevent the tableware falling from the washing cavity 11 from entering the filter assembly 30.

[0097] Continuing to refer to Figure 11 and Figure 12 In some embodiments of the present application, the third filter member 33 may further include an output end 332, and the first filter member 31 may further include a connecting portion 313. One end of the connecting portion 313 is connected to the first filter portion 311, and the other end of the connecting portion 313 is connected to the output end 332, so that the output end 332 is spaced apart from the first filter portion 311 to form a residue outlet 314 communicating with the side sliding surface 3112.

[0098] Understandably, the washing water can enter the third filter member 33 from the input end 331, and under the guiding action of the third filter member 33, it flows towards the first filter member 31. When the washing water flowing out from the output end 332 passes through the first filter member 31, the residue can be intercepted above the first filtering portion 311 and slide downwards along the side sliding surface 3112, and finally discharged through the residue outlet 314. Thus, it can effectively prevent the blockage of the first filtering holes 3111 caused by the accumulation of residues, keep the first filtering holes 3111 unobstructed, and extend the cleaning cycle of the dishwasher 1.

[0099] It should be noted that the connection mode between the connecting portion 313 and the output end 332 can be snap connection, or threaded connection or pin connection, etc. When snap connection is adopted, as Figure 11 shown, the first hook 3131 and the second hook 3132 can be arranged at intervals along the height direction on the connecting portion 313, a clamping hole 3310 is formed on the output end 332, and the first hook 3131 abuts against the upper edge surface of the clamping hole 3310, and the second hook 3132 abuts against the lower edge surface of the clamping hole 3310. In this way, the connecting portion 313 and the output end 332 can be stably connected together, preventing the vibration generated during the operation of the dishwasher 1 from separating the first filter member 31 and the third filter member 33.

[0100] Continuing to refer to Figure 11 , in some embodiments of the present application, the connecting portion 313 may include a plurality of connecting rods 3133 circumferentially arranged at intervals around the central axis of the first filtering portion 311. Thus, the connecting rods 3133 can space apart the first filtering portion 311 and the output end 332, and a residue outlet 314 can be formed between every two adjacent connecting rods 3133. For example, four connecting rods 3133 can form four residue outlets 314, which is conducive to timely discharging the residue 2 on the side sliding surface 3112 through the plurality of residue outlets 314.

[0101] Figure 13 FIG. shows the fifth structural schematic diagram of the filter assembly provided by the embodiment of the present application, Figure 14 FIG. shows Figure 13 the cross-sectional structural schematic diagram at the position C-C, Figure 15 FIG. shows the second schematic diagram of disassembling and cleaning the residue 2 of the filter assembly 30 provided by the embodiment of the present application. With reference to Figure 13 , Figure 14 and Figure 15 , in some embodiments of the present application, the filter assembly 30 further includes a fourth filter member 34. The fourth filter member 34 is detachably connected to the bottom wall of the water cup 20 (as Figure 9 shown), and the fourth filter member 34 is sleeved on the third filter member 33, so as to form a residue-containing cavity 341 communicating with the residue outlet 314.

[0102] It should be noted that the detachable connection between the fourth filter element 34 and the water cup 20 can be in the form of a threaded connection, a snap connection, or magnetic adsorption. For example, an external thread can be provided at the bottom of the fourth filter element 34, and an internal thread can be provided on the side wall surface at the bottom of the water cup 20, or an internal thread can be provided at the bottom of the fourth filter element 34, and an external thread can be provided on the side wall surface at the bottom of the water cup 20.

[0103] It can be understood that the residues discharged from the residue outlet 314 can be collected and gathered in the residue chamber 341. When the residues gather to a certain amount, only need to first separate the fourth filter element 34 from the bottom of the water cup 20, and then take out the fourth filter element 34 obliquely. In this way, the residues clamped between the third filter element 33 and the fourth filter element 34 can be cleaned conveniently and efficiently.

[0104] Continue to refer to Figure 14 , in some embodiments of the present application, the third filter element 33 may further include a coarse filter cylinder 334. A plurality of third filter holes 3341 are arranged at intervals on the coarse filter cylinder 334. The third filter holes 3341 communicate the inner cavity of the coarse filter cylinder 334 with the residue chamber 341. Among them, the aperture of the third filter hole 3341 is larger than the aperture of the first filter hole 3111.

[0105] It can be understood that during the process that the washing water enters the coarse filter cylinder 334 from the input end 331 and flows out of the coarse filter cylinder 334 from the output end 332, some residues with larger diameters in the washing water can directly enter the annular residue chamber 341 from the third filter holes 3341. In this way, the residues can be shunted according to their different sizes, and the residues are dispersed to different positions in the residue chamber 341, avoiding all the residues being discharged from the output end 332, resulting in the rapid accumulation of residues on the first filter part 311 below the output end 332, thereby being beneficial to maintaining the smoothness of the first filter holes 3111 and extending the cleaning cycle of the dishwasher 1.

[0106] Figure 16 shows the sixth structural schematic diagram of the filter assembly provided by the embodiment of the present application. Figure 17 shows the third structural schematic diagram of the dishwasher provided by the embodiment of the present application. Referring to Figure 16 and Figure 17 , in some embodiments of the present application, the fourth filter element 34 may include a fine filter cylinder 342. The fine filter cylinder 342 is sleeved on the coarse filter cylinder 334 to form the residue chamber 341 in this way. A plurality of fourth filter holes 3421 are arranged at intervals on the fine filter cylinder 342. The fourth filter holes 3421 can be used to communicate the residue chamber 341 and the water cup 20. Among them, the aperture of the fourth filter hole 3421 is smaller than the aperture of the first filter hole 3111.

[0107] Understandably, since the aperture of the fourth filtering holes 3421 provided on the fine filtering cylinder 342 is fine, the residue 2 stored in the slag-containing cavity 341 can be constrained inside the filtering assembly 30 by the fine filtering cylinder 342, while the washing water passing through the fourth filtering holes 3421 can flow back into the water cup 20, so that the circulating water pump in the water cup 20 can pump the washing water into the washing cavity 11 again. In this way, water resources and the use cost of the dishwasher 1 can be effectively saved.

[0108] It should be noted that both the fine filtering cylinder 342 and the coarse filtering cylinder 334 can be set as a cylindrical barrel, a rectangular barrel or other polygonal frustums, as long as a slag-containing cavity 341 can be formed after the two are nested.

[0109] Continue to refer to Figure 16 and Figure 17 In some embodiments of the present application, the fourth filtering member 34 may further include a first connecting portion 343, which is arranged at the upper end of the fine filtering cylinder 342 and is connected to the input end 331 of the coarse filtering cylinder 334.

[0110] It should be noted that the connection manner between the first connecting portion 343 and the input end 331 can be a threaded connection, a snap connection or a magnetic adsorption, etc. For example, the first connecting portion 343 may include a plurality of clamping blocks arranged circumferentially and at intervals around the central axis of the fine filtering cylinder 342, and a plurality of buckles arranged circumferentially and at intervals around the central axis of the coarse filtering cylinder 334 at the input end 331 of the coarse filtering cylinder 334. In this way, after the clamping blocks and the buckles are connected in one-to-one correspondence, the fourth filtering member 34 can be stably connected to the third filtering member 33.

[0111] In this way, when it is necessary to clean the residue 2 in the slag-containing cavity 341 and the filtering assembly 30 is disassembled from the water cup 20 and taken out obliquely, since the positions of the third filtering member 33 and the fourth filtering member 34 are relatively fixed, the spatial structure of the annular accommodating cavity is also relatively stable, thus avoiding the residue 2 being extruded from the output end 332 or the input end 331 due to the shaking of the coarse filtering cylinder 334 during the process of taking out the filtering assembly 30.

[0112] Continue to refer to Figure 16 and Figure 17 In some embodiments of the present application, the fourth filtering member 34 may further include a second connecting portion 344, which is arranged at the lower end of the fine filtering cylinder 342 and is threadedly connected to the bottom wall of the water cup 20. In this way, when it is necessary to clean the residue in the slag-containing cavity 341, rotating the fine filtering cylinder 342 can conveniently complete the separation between the filtering assembly 30 and the water cup 20.

[0113] Continue to refer to Figure 16 and Figure 17, in some embodiments of the present application, the third filter member 33 may further include a rotating handle 335 connected to the upper end of the coarse filter cylinder 334.

[0114] In this way, when it is necessary to take out the filter assembly 30 from the water cup 20, the staff can hold the rotating handle 335 and rotate it. The rotating handle 335 can drive the coarse filter cylinder 334 to rotate. The coarse filter cylinder 334 can drive the fine filter cylinder 342 to rotate in the same direction through the first connecting portion 343, so that the second connecting portion 344 connected to the lower part of the fine filter cylinder 342 is screwed out from the bottom of the water cup 20, completing the separation of the filter assembly 30 from the water cup 20.

[0115] Referring to Figure 12 and Figure 17 , in some embodiments of the present application, the third filter member 33 may further include a plurality of connecting rib plates 336. The plurality of connecting rib plates 336 are arranged circumferentially at intervals around the central axis of the rotating handle 335. One end of each connecting rib plate 336 is connected to the rotating handle 335, and the other end is connected to the coarse filter cylinder 334, thereby stably connecting the rotating handle 335 to the coarse filter cylinder 334.

[0116] Figure 18 Fig. 4 shows the structural schematic diagram of the dishwasher provided by the embodiment of the present application. Referring to Figure 17 and Figure 18 , in some embodiments of the present application, the water cup 20 is provided with a drain port 223, and the dishwasher 1 may further include a second drain pump, and the second drain pump is communicated with the drain port 223.

[0117] It should be noted that the power of the second drain pump is greater than that of the first drain pump, and the diameter of the drain port 223 is greater than that of the drain hole 210. After the dishwasher 1 finishes cleaning, the second drain pump can be turned on first to quickly drain most of the washing water in the water cup 20 through the drain port 223. A small part of the residual washing water remaining on the bottom wall surface of the water cup 20 can be collected in the water inlet cavity 3122 through the drainage assisting holes 3121, and then enter the water collection cavity 21 through the first filter holes 3111. At this time, the first drain pump can be turned on again to drain the residual washing water in the water collection cavity 21 out of the dishwasher 1.

[0118] In this way, the washing water in the dishwasher 1 can be drained completely, avoiding the growth of bacteria, fungi and other harmful substances in the residual washing water, resulting in peculiar smell in the dishwasher 1 or contamination of the tableware placed in the dishwasher 1, thereby improving the safety and hygiene conditions of the dishwasher 1 and the user experience.

[0119] Continuing to refer to Figure 17 and Figure 18, in some embodiments of the present application, a communication hole 345 is formed at the bottom of the second connecting portion 344 and is arranged towards the drain port 223, and a filter screen is arranged on the communication hole 345.

[0120] In this way, when the second drain pump is turned on, the washing water in the slag holding cavity 341 can enter the water cup 20 through the filter screen of the communication hole 345 and then be discharged from the dishwasher 1 through the drain port 223.

[0121] Although the present application has been described in connection with various embodiments, however, in the process of implementing the claimed present application, those skilled in the art can understand and realize other variations of the disclosed embodiments by viewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "one" does not exclude a plurality. A single processor or other unit can implement several functions recited in the claims. Certain measures are recited in mutually different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0122] Although the present application has been described in connection with specific features and their embodiments, it is obvious that various modifications and combinations can be made without departing from the spirit and scope of the present application. Accordingly, the present specification and the drawings are merely exemplary illustrations of the present application defined by the appended claims, and are considered to have covered any and all modifications, variations, combinations, or equivalents within the scope of the present application. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these changes and modifications.

[0123] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any change or replacement within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A dishwasher, characterized in that, The dishwasher comprises: An inner tank having a washing cavity, wherein the washing cavity is used for washing items to be washed; A water cup connected to the bottom of the inner tank, the water cup is provided with a water storage tank, and the water storage tank is communicated with the washing chamber; a first drainage pump, connected to the water storage tank; and a filter assembly, disposed in the water storage tank, for filtering out residues in the washing water; Wherein, the filtering component comprises: A first filter element, disposed in the water storage tank and detachably connected to the water cup; And a second filter element is connected to the water cup and is located on a side of the first filter element away from the inner tank. The washing water flows through the first filter element and the second filter element in sequence and enters the first drainage pump.

2. The dishwasher according to claim 1, wherein The first filter element comprises: a first filter portion, wherein a plurality of first filter holes are arranged on the first filter portion; The surface of the first filter part facing away from the second filter element protrudes from the second filter element toward the inner tank and points along the center of the first filter part to the edge of the first filter part. The protrusion height of the surface of the first filter part facing away from the second filter element gradually decreases to form a side sliding surface for the residue to slide.

3. The dishwasher according to claim 2, wherein, The first filter element further includes: a drainage-assisting portion, one end of which is connected to the first filter element, and the other end of which can abut against the second filter element, and the drainage-assisting portion is formed with a water inlet cavity; Wherein, an auxiliary drainage hole is provided at one end of the auxiliary drainage portion facing the second filter element, and the auxiliary drainage hole is connected with the water storage tank and the water inlet cavity.

4. The dishwasher according to claim 2, characterized in that, The bottom wall of the water cup is provided with a mounting cavity; the second filter element comprises: A second filter portion, the second filter portion is disposed in the installation cavity, a plurality of second filter holes are arranged on the second filter portion, and the aperture of the second filter hole is smaller than or equal to the aperture of the first filter hole; and a lifting portion connected to a side of the second filter portion facing the first filter element.

5. The dishwasher according to claim 2, characterized in that, The first filter element further includes: a connecting portion, one end of which is connected to the first filter portion; The filter assembly further includes: a third filter element, the third filter element being configured as a cylindrical structure and comprising: An input end, the input end is communicated with the washing chamber, and a protective rod is provided at the input end; and an output end, wherein the output end is connected to the other end of the connecting portion, so that the output end is spaced apart from the first filtering portion to form a residue outlet communicated with the side sliding surface.

6. The dishwasher according to claim 5, characterized in that, The filter assembly further includes: a fourth filter element, the fourth filter element is detachably connected to the bottom wall of the water cup, and the fourth filter element is sleeved on the third filter element to form a residue containing cavity connected to the residue outlet.

7. The dishwasher according to claim 6, wherein The third filter element further comprises: a coarse filter cartridge, on which a plurality of third filter holes are arranged at intervals, and the third filter holes communicate with the inner cavity of the coarse filter cartridge and the slag containing cavity; Wherein, the aperture of the third filter hole is larger than the aperture of the first filter hole.

8. The dishwasher according to claim 7, wherein The fourth filter element comprises: A fine filter cartridge, the fine filter cartridge is sleeved on the coarse filter cartridge, a plurality of fourth filter holes are arranged at intervals on the fine filter cartridge, and the fourth filter holes are connected with the slag containing cavity and the water storage tank; A first connecting portion is provided at the upper end of the fine filter cartridge and is connected to the input end of the coarse filter cartridge; and a second connecting portion is provided at the lower end of the fine filter cartridge and is threadedly connected to the bottom wall of the water cup; wherein, the aperture of the fourth filter hole is smaller than the aperture of the first filter hole.

9. The dishwasher according to claim 8, characterized in that, A drain port is provided on the water cup; the dishwasher further includes: a second drain pump, and the second drain pump is communicated with the drain port; A communication hole facing the drain port is formed at the bottom of the second connecting portion, and a filter screen is provided on the communication hole.

10. A dishwasher, characterized in that, The dishwasher includes: An inner tank having a washing cavity for washing items to be washed; A water cup having a water storage tank communicated with the washing cavity, a water collecting cavity is formed on the bottom wall of the water cup, and the water collecting cavity is communicated with the water storage tank; A first drain pump communicated with the water collecting cavity; and a filtering assembly for filtering residues in the washing water; wherein, the filtering assembly includes: A first filtering member detachably connected to the water cup; and a second filtering member connected to the water cup and located on a side of the first filtering member away from the inner tank for allowing the washing water to flow through the first filtering member and the second filtering member in sequence and enter the water collecting cavity.

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