Self-cleaning system suitable for dish-washing machine filtering device and dish-washing machine

Abstract

The invention discloses a self-cleaning system suitable for a filtering device of a dish-washing machine and the dish-washing machine, and the self-cleaning system suitable for the filtering device of the dish-washing machine comprises a water tank which is internally provided with a draining chamber; the coarse filtering part is detachably arranged in the draining chamber; the fine filtering assembly is arranged on the side periphery of the coarse filtering part in a sleeving manner and is rotatably arranged in the draining cavity, and a blocking rib is arranged on the side periphery of the fine filtering assembly; the water outlet end of the spraying assembly is arranged on the inner side wall of the draining cavity, the spraying direction of the water outlet end of the spraying assembly faces the blocking rib, and when the water outlet end of the spraying assembly sprays water towards the blocking rib, the blocking rib drives the fine filtering assembly to rotate after being stressed. According to the self-cleaning system suitable for the filtering device of the dish washing machine, the water tank and the fine filtering assembly can be washed at the same time, the coarse filtering piece and the fine filtering assembly do not need to be taken out, operation is convenient, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of dishwashers, and in particular to a self-cleaning system suitable for a filter device of a dishwasher and a dishwasher. Background Art

[0002] At present, existing household dishwashers are generally of the rotary spray type, that is, high-pressure water is sprayed onto the dishes for washing. During the washing process, since the inner tank of the dishwasher can be directly sprayed by the spray arm, no additional cleaning is required. However, for places hidden in the spray arm that cannot be sprayed, such as the inner wall of the sink below the inner tank and the filter structure in the sink, the water used to wash the dishes only flows through the sink and the filter structure, and the cleaning effect is poor. At the same time, the filter structure is installed in the sink and occupies a certain space. If you want to clean the inner wall of the sink, you need to manually remove the filter structure to facilitate cleaning inside the sink. Therefore, it is more troublesome to clean the sink and the filter structure of the existing dishwasher, and the operation is inconvenient and the cleaning efficiency is low. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a self-cleaning system and a dishwasher suitable for a dishwasher filter device, aiming to solve the problem in the prior art that the dishwasher needs to manually remove the filter structure before cleaning the inside of the sink, resulting in inconvenient operation and low cleaning efficiency.

[0004] The technical solution adopted by the present invention to solve the technical problem is as follows:

[0005] In a first aspect, an embodiment of the present invention provides a self-cleaning system applicable to a filter device of a dishwasher, comprising:

[0006] A water tank, wherein a drainage chamber is provided in the water tank;

[0007] A coarse filter element, wherein the coarse filter element is detachably disposed in the drainage chamber;

[0008] A fine filter assembly, which is sleeved on the side of the coarse filter element and rotatably arranged in the drainage chamber, and a retaining rib is provided on the side of the fine filter assembly;

[0009] A spray assembly, wherein the water outlet end of the spray assembly is arranged on the inner wall of the drain chamber, and the water outlet end of the spray assembly sprays in a direction toward the retaining rib. When the water outlet end of the spray assembly sprays water toward the retaining rib, the retaining rib is subjected to force to drive the fine filter assembly to rotate.

[0010] As a further improved technical solution, the fine filter assembly includes a fine filter and a filter bracket. The filter bracket can be rotatably arranged in the drainage chamber. The retaining rib is arranged on the outer periphery of the filter bracket. The fine filter is arranged on the filter bracket and is sleeved on the side periphery of the coarse filter element.

[0011] As a further improved technical solution, a plurality of retaining ribs are provided on the outer periphery of the filter support, and the retaining ribs are evenly distributed on the filter support along the vertical direction.

[0012] As a further improved technical solution, the self-cleaning system for the dishwasher filter device further includes:

[0013] An annular bracket and a plurality of balls, wherein the annular bracket is fixedly arranged on the bottom side of the drain chamber, and a plurality of circular grooves are arranged on the top side of the annular bracket, and each of the balls is rotatably arranged in each of the circular grooves and corresponds to each other one by one; a first slot opening downward is arranged on the bottom side of the filter bracket, the annular bracket is located in the first slot and limits the filter bracket, and each of the balls is respectively abutted against the top side in the first slot.

[0014] As a further improved technical solution, an annular limiting groove is provided on the outer periphery of the coarse filter element, and a limiting protrusion is provided on the inner side of the filter bracket. The limiting protrusion is arranged in the annular limiting groove, and the limiting protrusion and the annular limiting groove do not contact each other.

[0015] As a further improved technical solution, a second slot is provided on the outer side of the bottom of the coarse filter element, and a block is provided on the bottom side of the drainage chamber. The coarse filter element and the drainage chamber are connected through the cooperation of the second slot and the block.

[0016] As a further improved technical solution, a drainage chamber is also provided on the bottom side of the drainage chamber, and the side wall of the drainage chamber is provided with a drainage port communicating with the outside, part of the block is located on the inner wall of the drainage chamber, and the bottom end of the coarse filter element corresponds to the drainage chamber.

[0017] As a further improved technical solution, the spray assembly includes a three-way valve, a first pipeline, a second pipeline, a pressure pump and a nozzle; the two ends of the first pipeline are respectively connected to the three-way valve and the pressure pump, the nozzle is detachably arranged on the inner wall of the drainage chamber, and the nozzle sprays water toward the rib, and the two ends of the second pipeline are respectively connected to the pressure pump and the nozzle.

[0018] As a further improved technical solution, the spray assembly also includes a third pipeline, the inner wall of the drainage chamber is provided with a water inlet hole, and the two ends of the third pipeline are respectively connected to the three-way valve and the water inlet hole.

[0019] In a second aspect, an embodiment of the present invention further provides a dishwasher, which includes a self-cleaning system suitable for a filter device of the dishwasher as described in any one of the above.

[0020] Compared with the prior art, the embodiments of the present invention have the following advantages:

[0021] An embodiment of the present invention provides a self-cleaning system suitable for a dishwasher filter device, comprising: a water sink, wherein a drain chamber is provided in the water sink; a coarse filter element, wherein the coarse filter element is detachably arranged in the drain chamber; a fine filter assembly, wherein the fine filter assembly is sleeved on the side periphery of the coarse filter element and rotatably arranged in the drain chamber, and a retaining rib is provided on the side periphery of the fine filter assembly; and a spray assembly, wherein a water outlet end of the spray assembly is arranged on the inner side wall of the drain chamber, and a spraying direction of the water outlet end of the spray assembly is toward the retaining rib, and when the water outlet end of the spray assembly sprays water toward the retaining rib, the retaining rib is subjected to force and drives the fine filter assembly to rotate. In the present invention, water can be sprayed through the water outlet of the spray assembly, and after the high-pressure water is sprayed and hits the retaining rib, the retaining rib is subjected to force and drives the fine filter assembly to rotate. After the fine filter assembly rotates, the entire side circumference can be washed, and part of the high-pressure water flow will rebound and rush to the side wall of the drain chamber in the sink after hitting the retaining rib and the fine filter assembly, so that the side wall of the drain chamber is also washed at the same time. Therefore, the self-cleaning system for the filter device of the dishwasher provided by the present invention can wash the sink and the fine filter assembly at the same time, without taking out the coarse filter and the fine filter assembly, which is convenient to operate and improves the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 An exploded diagram of a self-cleaning system applicable to a filter device of a dishwasher provided by the present invention;

[0023] Figure 2 A schematic diagram of the three-dimensional structure of a self-cleaning system applicable to a filter device of a dishwasher provided by the present invention;

[0024] Figure 3 It is a schematic diagram of the assembly structure of the coarse filter element and the fine filter assembly in the present invention;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the water tank in the present invention;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the filter support in the present invention;

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the annular bracket in the present invention;

[0028] Figure 7It is a schematic diagram of the three-dimensional structure of the coarse filter element in the present invention;

[0029] Figure 8 A schematic cross-sectional structure diagram of a self-cleaning system applicable to a filter device of a dishwasher provided by the present invention;

[0030] Fig. 9 It is a schematic diagram of the first three-dimensional structure of the nozzle in the present invention;

[0031] Fig.10 It is a second three-dimensional structural schematic diagram of the nozzle in the present invention;

[0032] Fig.11 It is a schematic diagram of the assembly structure of the nozzle and the water tank in the present invention.

[0033] In the figure: 1. water tank; 101. drainage chamber; 1011. block; 1012. water inlet hole; 1013. mounting slot; 1014. third slot; 102. drainage chamber; 1021. drain outlet; 2. coarse filter; 201. annular limit groove; 202. second slot; 3. fine filter assembly; 301. fine filter screen; 302. filter screen bracket; 3021. retaining rib; 3022. first slot; 3023. limit protrusion; 4. spray assembly; 401. three-way valve; 402. first pipeline; 403. second pipeline; 404. pressure pump; 405. nozzle; 4051. protrusion; 4052. accommodating chamber; 4053. spray hole; 406. third pipeline; 5. annular bracket; 501. circular groove; 6. ball bearing; 7. metal filter screen. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] At present, the existing household dishwashers are generally of the rotary spray type, that is, high-pressure water is sprayed onto the dishes for washing. During the washing process, since the inner tank of the dishwasher can be directly sprayed by the spray arm, no additional cleaning is required. However, for places hidden in the spray arm that cannot be sprayed, such as the inner wall of the sink below the inner tank and the filter structure in the sink, the water used to wash the dishes only flows through the sink and the filter structure, and the cleaning effect is poor. At the same time, the filter structure is installed in the sink and occupies a certain space. If you want to clean the inner wall of the sink, you need to manually remove the filter structure to facilitate cleaning inside the sink. Therefore, the sink and filter structure of the existing dishwasher are more troublesome to clean, inconvenient to operate and have low cleaning efficiency. Therefore, the present invention provides the following embodiments to solve the above problems.

[0036] Embodiment 1:

[0037] See also Figure 1-Figure 11 The self-cleaning system for the filter device of the dishwasher comprises: a water tank 1, wherein a drainage chamber 101 is provided in the water tank 1; a coarse filter 2, wherein the coarse filter 2 is detachably arranged in the drainage chamber 101; a fine filter assembly 3, wherein the fine filter assembly 3 is sleeved on the side periphery of the coarse filter 2 and rotatably arranged in the drainage chamber 101, wherein a retaining rib 3021 is provided on the side periphery of the fine filter assembly 3; and a spray assembly 4, wherein the water outlet end of the spray assembly 4 is arranged on the inner side wall of the drainage chamber 101, and the water outlet end of the spray assembly 4 sprays in a direction toward the retaining rib 3021, and when the water outlet end of the spray assembly 4 sprays water toward the retaining rib 3021, the retaining rib 3021 is subjected to force and drives the fine filter assembly 3 to rotate.

[0038] like Figure 1-Figure 4 As shown, in this embodiment, the self-cleaning system suitable for the filter device of the dishwasher includes: a water tank 1, a coarse filter 2, a fine filter assembly 3 and a spray assembly 4; wherein, a drainage chamber 101 is provided in the water tank 1, and the coarse filter 2 is detachably arranged in the drainage chamber 101, so that the coarse filter 2 can be disassembled to clean the food residue inside it, and the coarse filter 2 is used to filter larger food residues to prevent the larger food residues from clogging the sewage outlet of the dishwasher, and the fine filter assembly 3 is sleeved on the side periphery of the coarse filter 2, and the fine filter assembly 3 surrounds the side periphery of the coarse filter 2 to prevent smaller food residues from clogging the sewage outlet of the dishwasher. The residue falls out from the side holes of the coarse filter element 2, reducing the burden of cleaning the drain chamber 101 at a later time; the fine filter component 3 is rotatably arranged in the drain chamber 101, and the side of the fine filter component 3 is provided with a retaining rib 3021, and the retaining rib 3021 is used to increase the force-bearing area, and the water outlet end of the spray component 4 is arranged on the inner wall of the drain chamber 101, and the water outlet end of the spray component 4 sprays in a direction toward one side of the retaining rib 3021. When the water outlet end of the spray component 4 sprays water toward the retaining rib 3021, the retaining rib 3021 is subjected to force on one side and drives the fine filter component 3 to rotate. In this embodiment, water can be sprayed through the water outlet of the spray assembly 4, and after the high-pressure water is sprayed and hits the retaining rib 3021, the retaining rib 3021 is subjected to force to drive the fine filter assembly 3 to rotate, and the fine filter assembly 3 can be rotated so that the entire side circumference can be washed, and part of the high-pressure water flow will rebound and rush to the side wall of the drain chamber 101 in the sink 1 after hitting the retaining rib 3021 and the fine filter assembly 3, so that the side wall of the drain chamber 101 is also washed at the same time. Therefore, the self-cleaning system for the filter device of the dishwasher provided by the present invention can wash the sink 1 and the fine filter assembly 3 at the same time, without taking out the coarse filter 2 and the fine filter assembly 3, which is convenient to operate and improves the cleaning efficiency.

[0039] At the same time, the cleaning methods of the coarse filter element 2, the fine filter component 3 and the drain chamber 101 include but are not limited to the following two methods. Method 1: First turn on the spray system, and use high-pressure water flow to impact the fine filter component 3, so that the food residues remaining on the fine filter component 3 fall back into the coarse filter element 2, and at the same time, the drain chamber 101 is rinsed by the water flow that rebounds and rushes to the side wall of the drain chamber 101, and then the coarse filter element 2 is taken out, all the food residues are poured out and washed, and then put into the drain chamber 101 to complete the cleaning. Method 2: First take out the coarse filter element 2, clean the food residues therein and wash them, and then put them into the drain chamber 101, and then turn on the spray system again for washing, so that the smaller food residues remaining on the fine filter component 3 are washed into the coarse filter element 2 through the water flow, and then discharged from the bottom of the coarse filter element 2 to the sewage outlet and the outside world with the water flow, and the drain chamber 101 is rinsed by the water flow that rebounds and rushes to the side wall of the drain chamber 101, thereby completing the cleaning. The above two methods can be cycled multiple times to ensure thorough cleaning.

[0040] As a further solution, the fine filter assembly 3 includes a fine filter 301 and a filter bracket 302. The filter bracket 302 is rotatably arranged in the drainage chamber 101. The retaining rib 3021 is arranged on the outer periphery of the filter bracket 302. The fine filter 301 is arranged on the filter bracket 302 and is sleeved on the side periphery of the coarse filter element 2. Specifically, the bottom end of the filter screen bracket 302 is rotatably arranged at the bottom of the drainage chamber 101, and the fine filter screen 301 is arranged on the filter screen bracket 302 and supported by the filter screen bracket 302. The fine filter screen 301 is surrounded by the side of the coarse filter element 2, so that smaller food residues can be prevented from falling out from the side of the coarse filter element 2, such as chopped green onions or green vegetable leaves; at the same time, these smaller food residues are easy to adhere to the fine filter screen 301, so water can be sprayed through the spray system to flush the side wall of the fine filter screen 301 so that these smaller food residues adhered to the fine filter screen 301 fall into the coarse filter element 2 and are discharged from the bottom of the coarse filter element 2.

[0041] As a further solution, the self-cleaning system suitable for the dishwasher filter device also includes a metal filter 7, which is sleeved on the coarse filter element 2 and arranged at the top of the filter bracket. The metal filter 7 is used to be installed in the inner tank of the dishwasher to increase the filtration area and reduce the cleaning burden of the coarse filter element 2 and the fine filter component 3.

[0042] like Figure 5As shown, in this embodiment, a plurality of retaining ribs 3021 are provided on the outer circumference of the filter support 302, and each retaining rib 3021 is evenly distributed on the filter support 302 along the vertical direction. Specifically, in this embodiment, four retaining ribs 3021 are provided, and are evenly distributed along the circumference of the filter support 302. By appropriately adding a plurality of retaining ribs 3021, the rotation speed of the fine filter 301 can be increased, thereby improving the cleaning efficiency.

[0043] like Figure 6 As shown, as a further solution, the self-cleaning system suitable for the dishwasher filter device also includes an annular bracket 5 and a plurality of balls 6, the annular bracket 5 is fixedly arranged on the bottom side of the drain chamber 101, and the top side of the annular bracket 5 is provided with a plurality of circular grooves 501, and each of the balls 6 is rotatably arranged in each of the circular grooves 501 and corresponds to each other one by one; the bottom side of the filter bracket 302 is provided with a first slot 3022 opening downward, the annular bracket 5 is located in the first slot 3022 and limits the filter bracket 302, and each of the balls 6 is respectively abutted against the top side in the first slot 3022. Specifically, when the spray system flushes the fine filter assembly 3, the retaining rib 3021 on the filter support 302 is subjected to force to drive the filter support 302 to rotate, and at this time, the balls 6 in the annular support 5 rotate, and each of the balls 6 is used to promote the rotation of the filter support 302, thereby reducing the friction resistance between the first slot 3022 and the annular support 5 or the bottom of the drainage chamber 101. At the same time, in order to enhance the sealing performance of the fine filter assembly 3 to the side of the coarse filter element 2, the top of the filter support abuts against the top of the coarse filter element 2. In order to reduce the friction resistance between the two, the annular support 5 and the balls 6 can also be added between the top of the filter support and the top of the coarse filter element 2. For example, the annular support 5 is installed on the top end face of the filter support, and then an annular slot is provided on the bottom side of the top of the coarse filter element 2 to cooperate with the annular support 5 and the balls 6 at the top of the filter support.

[0044] like Figure 7 and Figure 8As shown, as a further solution, an annular limiting groove 201 is provided on the outer periphery of the coarse filter element 2, and a limiting protrusion 3023 is provided on the inner side of the filter bracket 302. The limiting protrusion 3023 is arranged in the annular limiting groove 201, and the limiting protrusion 3023 does not contact the annular limiting groove 201. The annular limiting groove 201 and the limiting protrusion 3023 are arranged to facilitate the pre-installation of the coarse filter element 2, so that the coarse filter element 2 is aligned with the detachable connection of the drainage chamber 101, and the coarse filter element 2 is limited by the limiting protrusion 3023 to prevent the coarse filter element 2 from being offset, thereby facilitating the rapid installation of the coarse filter element 2.

[0045] In this embodiment, a second card slot 202 is provided on the outer side of the bottom of the coarse filter 2, and a card block 1011 is provided on the bottom side of the drainage chamber 101. The coarse filter 2 and the drainage chamber 101 are engaged with each other through the cooperation of the second card slot 202 and the card block 1011. Specifically, any one of the second card slot 202 and the card block 1011 is elastic, and a semicircular groove (not shown) is provided in the second card slot 202, and a semicircular protrusion (not shown) is provided on the card block 1011. The cooperation between the semicircular groove and the semicircular protrusion can enhance the engagement stability between the second card slot 202 and the card block 1011. The bottom side of the second card slot 202 has a slope, and the structure of the card block 1011 is adapted to the second card slot 202, so that the two can be engaged quickly. At the same time, an arrow (not shown) is also provided on the top of the coarse filter element 2, and the arrow is used to point to the direction in which the second clamping groove 202 needs to be twisted to engage with the clamping block 1011.

[0046] As a further solution, a drainage chamber 102 is further provided at the bottom side of the drainage chamber 101, and a drainage port 1021 communicating with the outside is provided on the side wall of the drainage chamber 102, and part of the block 1011 is located on the inner side wall of the drainage chamber 102, and the bottom end of the coarse filter 2 corresponds to the drainage chamber 102. Specifically, the drainage port 1021 is used to discharge the sewage from washing dishes and smaller food residues, and part of the block 1011 is provided at the bottom side of the drainage chamber 101, and another part for engagement is provided on the inner wall of the drainage chamber, and when the second engagement groove 202 is engaged with the block 1011, the bottom end of the coarse filter 2 is completely located in the drainage chamber, thereby preventing the smaller food residues from falling into the drainage chamber 101.

[0047] like Figure 9-11As shown, as a further solution, the spray assembly 4 includes a three-way valve 401, a first pipeline 402, a second pipeline 403, a pressure pump 404 and a nozzle 405; the two ends of the first pipeline 402 are respectively connected to the three-way valve 401 and the pressure pump 404, the nozzle 405 is detachably arranged on the inner wall of the drainage chamber 101, and the water spraying direction of the nozzle 405 is toward the retaining rib 3021, and the two ends of the second pipeline 403 are respectively connected to the pressure pump 404 and the nozzle 405. Specifically, one port of the three-way valve 401 is used to connect to an external water source, the first pipeline 402 is used to introduce an external water source into the pressure pump 404, and after the pressure pump 404 is started, the pressurized water can be discharged into the second pipeline 403 and the nozzle 405.

[0048] In this embodiment, the spray assembly 4 further includes a third pipeline 406, and the inner wall of the drainage chamber 101 is provided with a water inlet hole 1012, and the two ends of the third pipeline 406 are respectively connected to the three-way valve 401 and the water inlet hole 1012. Specifically, the horizontal plane height of the water inlet hole 1012 is lower than the horizontal plane height of the bottom end of the retaining rib 3021. If the bottom end of the retaining rib 3021 and the water inlet hole 1012 are at the same height, the water inlet hole 1012 may push the retaining rib 3021 and the filter bracket to rotate when water enters, which will increase unnecessary wear between the filter bracket and the ball 6 and the annular bracket 5. Therefore, by properly adjusting the heights of the two, the height of the water inlet hole 1012 is staggered with the height of the bottom end of the retaining rib 3021, and the wear between the second card slot 202 of the filter bracket and the annular bracket 5 and the ball 6 can be reduced.

[0049] Furthermore, a spray hole 4053 is provided on one side of the nozzle 405 close to the fine filter assembly 3, and the opening direction of the spray hole 4053 is toward one side of the retaining rib 3021. The nozzle 405 has a built-in accommodating chamber 4052, and the accommodating chamber 4052 can be used to store washing liquid, and the side of the nozzle 405 where the spray hole 4053 is provided is an arc-shaped surface, so as to guide the water flow in the accommodating chamber 4052 into the spray hole 4053. The side wall of the drainage chamber 101 is provided with a mounting groove 1013, and the inner side wall of the mounting groove 1013 is provided with a third clamping groove 1014. The side of the nozzle 405 is provided with a clamping protrusion 4051, and the clamping protrusion 4051 is elastic. The nozzle 405 and the mounting groove 1013 are clamped together by the third clamping groove 1014 and the clamping protrusion 4051, and the clamping protrusion 4051 and the third clamping groove 1014 are interference-fitted to increase the friction resistance between the clamping protrusion 4051 and the third clamping groove 1014. At the same time, the clamping protrusion 4051 and the third clamping groove 101 4 is greater than the impact of the water flow in the second pipeline 403 on the inside of the nozzle 405, so as to ensure that the nozzle 405 is fixed in the installation groove 1013, and the end of the second pipeline 403 away from the pressure pump 404 passes through the installation groove 1013 and is connected and communicated with the nozzle 405, and the nozzle 405 and the second pipeline 403 are detachably connected, such as abutting or adopting the existing conventional clamping method, and a sealing ring (not shown) is provided at the port at one end where the second pipeline 403 is connected to the nozzle 405 to enhance the sealing of the connection between the two.

[0050] Embodiment 2:

[0051] An embodiment of the present invention further provides a dishwasher, which includes a self-cleaning system suitable for a filter device of the dishwasher as described in any one of the first embodiments.

[0052] In summary, an embodiment of the present invention provides a self-cleaning system suitable for a dishwasher filter device, comprising: a water tank 1, wherein the water tank 1 is provided with a drain chamber 101; a coarse filter element 2, wherein the coarse filter element 2 is detachably arranged in the drain chamber 101; a fine filter component 3, wherein the fine filter component 3 is sleeved on the side periphery of the coarse filter element 2 and is rotatably arranged in the drain chamber 101, and a retaining rib 3021 is provided on the side periphery of the fine filter component 3; a spray component 4, wherein the water outlet end of the spray component 4 is arranged on the inner side wall of the drain chamber 101, and the water outlet end of the spray component 4 sprays in a direction toward the retaining rib 3021, and when the water outlet end of the spray component 4 sprays water toward the retaining rib 3021, the retaining rib 3021 is subjected to force and drives the fine filter component 3 to rotate. In the present invention, water can be sprayed through the water outlet end of the spray assembly 4, and after the high-pressure water is sprayed and hits the retaining rib 3021, the retaining rib 3021 is subjected to force to drive the fine filter assembly 3 to rotate, and the fine filter assembly 3 can be washed in the entire side circumference after rotating, and part of the high-pressure water flow will rebound and rush to the side wall of the drain chamber 101 in the water tank 1 after hitting the retaining rib 3021 and the fine filter assembly 3, so that the side wall of the drain chamber 101 is also washed at the same time. Therefore, the self-cleaning system for the filter device of the dishwasher provided by the present invention can wash the water tank 1 and the fine filter assembly 3 at the same time, without taking out the coarse filter 2 and the fine filter assembly 3, which is convenient to operate and improves the cleaning efficiency.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0054] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0055] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0057] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0058] Of course, the description of the above-mentioned embodiments of the present invention is relatively detailed, but it cannot be understood as limiting the scope of protection of the present invention. The present invention may also have many other implementation methods. Based on this implementation method, other implementation methods obtained by ordinary technicians in this field without any creative work all belong to the scope of protection of the present invention. The scope of protection of the present invention shall be based on the attached claims.

Claims

1. A self-cleaning system suitable for a dishwasher filter device, characterized in that: include: A water tank, wherein a drainage chamber is provided in the water tank; A coarse filter element, wherein the coarse filter element is detachably disposed in the drainage chamber; A fine filter assembly, which is sleeved on the side of the coarse filter element and rotatably arranged in the drainage chamber, and a retaining rib is provided on the side of the fine filter assembly; A spray assembly, wherein the water outlet end of the spray assembly is arranged on the inner wall of the drain chamber, and the water outlet end of the spray assembly sprays in a direction toward the retaining rib. When the water outlet end of the spray assembly sprays water toward the retaining rib, the retaining rib is subjected to force to drive the fine filter assembly to rotate.

2. The self-cleaning system for a dishwasher filter device according to claim 1, characterized in that: The fine filter assembly includes a fine filter and a filter bracket. The filter bracket is rotatably arranged in the drainage chamber. The retaining ribs are arranged on the outer periphery of the filter bracket. The fine filter is arranged on the filter bracket and is sleeved on the side periphery of the coarse filter.

3. The self-cleaning system for a dishwasher filter device according to claim 2, characterized in that: A plurality of retaining ribs are arranged on the outer periphery of the filter support, and the retaining ribs are evenly distributed on the filter support along the vertical direction.

4. The self-cleaning system for a dishwasher filter device according to claim 3, characterized in that: Also includes: An annular bracket and a plurality of balls, wherein the annular bracket is fixedly arranged on the bottom side of the drain chamber, and a plurality of circular grooves are arranged on the top side of the annular bracket, and each of the balls is rotatably arranged in each of the circular grooves and corresponds to each other one by one; a first slot opening downward is arranged on the bottom side of the filter bracket, the annular bracket is located in the first slot and limits the filter bracket, and each of the balls is respectively abutted against the top side in the first slot.

5. The self-cleaning system for a dishwasher filter device according to claim 2, characterized in that: An annular limiting groove is arranged on the outer periphery of the coarse filter element, and a limiting protrusion is arranged on the inner side of the filter bracket. The limiting protrusion is arranged in the annular limiting groove, and the limiting protrusion and the annular limiting groove do not contact each other.

6. The self-cleaning system for a dishwasher filter device according to claim 1, characterized in that: A second card slot is provided on the outer side of the bottom of the coarse filter element, and a card block is provided on the bottom side of the drainage chamber. The coarse filter element and the drainage chamber are connected by the cooperation of the second card slot and the card block.

7. The self-cleaning system for a dishwasher filter device according to claim 6, characterized in that: A drainage chamber is also provided on the bottom side of the drainage chamber, and a drainage port communicating with the outside is provided on the side wall of the drainage chamber. Part of the card block is located on the inner wall of the drainage chamber, and the bottom end of the coarse filter element corresponds to the drainage chamber.

8. The self-cleaning system for a dishwasher filter device according to claim 1, characterized in that: The spray assembly includes a three-way valve, a first pipeline, a second pipeline, a pressure pump and a nozzle; the two ends of the first pipeline are respectively connected to the three-way valve and the pressure pump, the nozzle is detachably arranged on the inner wall of the drainage chamber, and the nozzle sprays water toward the retaining rib, and the two ends of the second pipeline are respectively connected to the pressure pump and the nozzle.

9. The self-cleaning system for a dishwasher filter device according to claim 8, characterized in that: The spray assembly also includes a third pipeline. The inner wall of the drainage chamber is provided with a water inlet hole. Both ends of the third pipeline are respectively connected to the three-way valve and the water inlet hole.

10. A dishwasher, characterized in that: The invention comprises a self-cleaning system suitable for a filter device of a dishwasher as claimed in any one of claims 1 to 9.

Images