Microfilter cleaning device and dish washing machine

Abstract

The utility model provides a micro-filter cleaning device and a dish washing machine, and relates to the technical field of household appliances. The micro-filter cleaning device comprises a spraying part, a water cup, a circulating pump and a filtering part. The spray-washing piece is provided with a through hole and a water spraying end surrounding the through hole, the spray-washing piece surrounds the outer side of the micro-filter through the through hole, and the water spraying end faces a filter screen of the micro-filter; the water cup is provided with a concave space for accommodating the micro-filter, and the water cup is connected with the water inlet end of the spray-washing piece; the circulating pump is arranged on one side of the water cup, the input end of the circulating pump communicates with the bottom of the sunken space, and the output end of the circulating pump communicates with the water inlet end of the spraying part; the filtering part is assembled in the concave space and used for filtering water flowing to the circulating pump. According to the embodiment provided by the invention, the water is filtered by the filtering piece, and the circulating filtering water is adopted for flushing, so that the water is clean during cleaning, the cleaning water is saved, the water pressure state can be maintained, and the flushing effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a microfilter cleaning device and a dishwasher. Background Art

[0002] With the improvement of people's living standards and the change of consumption concepts, dishwashers have gradually entered the majority of households and become one of the mainstream kitchen appliances. At present, the filter device of the dishwasher is mainly composed of a plane filter, a cylindrical filter and a microfilter. During the washing process of the dishwasher, due to the strong suction of the washing pump, there will be more small particles of pollutants attached to the filter net of the microfilter set at the water inlet of the washing pump. The larger the surface area covered by the attachment, the smaller the water flow area of ​​the microfilter, which will cause the washing pump to suck empty, greatly reducing the washing efficiency of the dishwasher. Usually, the microfilter needs to be manually removed and cleaned regularly, which is not only troublesome, but also reduces the user experience. Utility Model Content

[0003] In view of the shortcomings of the existing methods, the present application provides a microfilter cleaning device and a dishwasher to solve the technical problem that the prior art needs to manually remove the microfilter for cleaning regularly, which is not only troublesome but also reduces the user's experience.

[0004] In the first aspect, an embodiment of the present application provides a microfilter cleaning device, which is applied to a dishwasher, comprising: a spray member, having a through hole and a water spray end arranged around the through hole, the spray member surrounding the outside of the microfilter through the through hole, and the water spray end facing the filter mesh of the microfilter; a water cup, having a recessed space for accommodating the microfilter; a circulation pump, arranged on one side of the water cup, the input end of the circulation pump being connected to the bottom of the recessed space, and the output end of the circulation pump being connected to the water inlet end of the spray member; and a filter member, assembled in the recessed space or at the input end of the circulation pump, to filter water flowing to the circulation pump.

[0005] As an optional embodiment, the water cup is provided with a plug-in hole on the outside of the recessed space, and a recessed slot is formed between the plug-in hole and the recessed space; the water inlet end of the spraying part has a water inlet pipe, and the water inlet pipe is accommodated in the slot and connected to the output end of the circulation pump after passing through the plug-in hole.

[0006] As an optional implementation, the water spray end includes a plurality of in-hole spray parts, and the plurality of in-hole spray parts are arranged on the hole wall of the through hole.

[0007] As an optional embodiment, the water spray end also includes a plurality of out-of-hole spray parts, and the plurality of out-of-hole spray parts are arranged on the side of the spray cleaning part facing the bottom of the recessed space; the spray direction of the in-hole spray part is set at an angle to the spray direction of the out-of-hole spray part.

[0008] As an optional embodiment, the spray cleaning part includes an annular cover body and a bottom shell; the cover body and the bottom shell surround an annular water cavity, and the cavity wall of the water cavity is provided with the water spray end and the water inlet pipe connected to the water cavity.

[0009] As an optional implementation, the spray cleaning component further includes: a sealing ring, which is sandwiched between the cover body and the bottom shell.

[0010] As an optional embodiment, the bottom shell has an annular water groove arranged along the circumferential direction, and the opening of the annular water groove faces the cover body; the sealing ring is clamped at the opening of the annular water groove, and an annular positioning groove is formed on the side of the sealing ring facing the cover body; the cover body has an annular protrusion formed on the side facing the bottom shell, and the annular protrusion is pressed into the annular positioning groove.

[0011] As an optional embodiment, the filter element is roughly L-shaped, having a first plug-in portion and a filter hole; a circulation pump connecting hole connected to the input end of the circulation pump is opened on the bottom side wall of the recessed space, and a second plug-in portion for cooperating with the first plug-in portion is provided at the bottom of the recessed space; the filter hole covers the circulation pump connecting hole.

[0012] As an optional embodiment, the microfilter cleaning device also includes a respirator and a water softener; the respirator and the water softener are both arranged on one side of the water cup, the input end of the respirator is connected to the water source, the output end of the respirator is connected to the input end of the water softener, and the output end of the water softener is connected to the bottom of the recessed space.

[0013] In a second aspect, an embodiment of the present application provides a dishwasher, comprising: a microfilter cleaning device as described in any one of the aforementioned embodiments.

[0014] The present application provides a microfilter cleaning device and a dishwasher. The technical solution provided by the embodiments of the present application brings at least the following beneficial effects:

[0015] The water is filtered through the filter element and flushed with circulating filtered water to ensure clean water for cleaning, saving cleaning water and maintaining the water pressure to ensure the flushing effect, so that attachments do not adhere to the microfilter and the washing pump can wash normally without empty suction, thereby improving the washing efficiency of the dishwasher.

[0016] The spray cleaning piece is mounted on the outside of the microfilter, and the water spray end surrounds the outside of the microfilter and is aligned with the filter screen of the microfilter. Water flows to the spray cleaning piece and is sprayed out from the water spray end. The water passes through the filter screen and rinses the inside of the microfilter, flushing away the attachments on the microfilter, reducing the coverage area of ​​the attachments, and increasing the water flow area of ​​the microfilter, thereby achieving the purpose of cleaning the microfilter, saving the user the trouble of manually cleaning the microfilter, and greatly improving the user experience.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0019] Figure 1 A schematic diagram of the structure of a microfilter cleaning device provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the structure of a spray cleaning component in a microfilter cleaning device provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of the positional relationship between a spray cleaning component and a microfilter in a microfilter cleaning device provided in an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the tilted bottom view of the structure of a spray cleaning member in a microfilter cleaning device provided in an embodiment of the present application;

[0023] Figure 5 A schematic diagram of the structure of a water cup in a microfilter cleaning device provided in an embodiment of the present application;

[0024] Figure 6 A schematic diagram of the positional relationship between a spray cleaning component, a microfilter and a water cup in a microfilter cleaning device provided in an embodiment of the present application;

[0025] Figure 7 A schematic diagram of the spray direction of a spray cleaning component in a microfilter cleaning device provided in an embodiment of the present application;

[0026] Figure 8 An exploded schematic diagram of a spray cleaning component in a microfilter cleaning device provided in an embodiment of the present application;

[0027] Fig. 9 A schematic diagram of the structure of a cover body in a microfilter cleaning device provided in an embodiment of the present application;

[0028] Fig.10A schematic diagram of the structure of a sealing ring in a microfilter cleaning device provided in an embodiment of the present application;

[0029] Fig.11 A schematic diagram of the structure of a bottom shell in a microfilter cleaning device provided in an embodiment of the present application;

[0030] Fig.12 A schematic structural diagram of a longitudinal section of a spray cleaning component in a microfilter cleaning device provided in an embodiment of the present application;

[0031] Fig.13 A schematic diagram of the positional relationship between a water cup and a filter element in a microfilter cleaning device provided in an embodiment of the present application;

[0032] Fig.14 for Fig.13 Exploded diagram of

[0033] Fig.15 A schematic diagram of the structure of a filter element in a microfilter cleaning device provided in an embodiment of the present application;

[0034] Fig.16 A schematic structural diagram of a dishwasher provided in an embodiment of the present application.

[0035] Reference numerals and corresponding descriptions:

[0036] 1: spraying member; 11: through hole; 12: water spraying end; 121: spraying part inside the hole; 122: spraying part outside the hole; 13: water inlet pipe; 14: cover body; 141: annular protrusion; 142: first clamping structure; 143: cover body; 15: bottom shell; 151: annular water groove; 152: bottom shell body; 153: second clamping structure; 154: supporting groove; 16: water cavity; 17: sealing ring; 171: annular positioning groove; 172: sealing ring body; 18: water inlet interface;

[0037] 2: Micro filter;

[0038] 3: water cup; 31: recessed space; 32: plug-in hole; 33: card slot; 34: second plug-in part; 35: circulating pump connecting hole;

[0039] 4: Circulation pump;

[0040] 5: filter element; 51: filter hole; 52: first plug-in portion; 53: first plate; 54: second plate;

[0041] 6: Respirator;

[0042] 7: Water Softener:

[0043] 8: Base;

[0044] 9: Water inlet valve;

[0045] 100: Drain pipe;

[0046] 200: Drain pump. DETAILED DESCRIPTION

[0047] The present application is described in detail below, and examples of embodiments of the present application are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components with the same or similar functions. In addition, if the detailed description of the known technology is unnecessary for the features of the present application shown, it will be omitted. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be interpreted as limiting the present application.

[0048] Those skilled in the art will appreciate that, unless expressly stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present application refers to the presence of the features, elements and / or components, but does not exclude the presence or addition of one or more other features, elements, components and / or groups thereof. "Connected" or "coupled" used herein may include wireless connection or wireless coupling. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0049] like Figure 1-7 , 13, 14 and 15, an embodiment of the present application provides a microfilter cleaning device, which is applied to a dishwasher. The microfilter cleaning device mainly includes a spraying member 1, a water cup 3, a circulation pump 4 and a filter 5. The spraying member 1 has a through hole 11 and a water spraying end 12 arranged around the through hole 11. The spraying member 1 surrounds the outside of the microfilter 2 through the through hole 11, and the water spraying end 12 faces the filter screen of the microfilter 2; the water cup 3 has a recessed space 31 for accommodating the microfilter 2; the circulation pump 4 is arranged on one side of the water cup 3, the input end of the circulation pump 4 is connected to the bottom of the recessed space 31, and the output end of the circulation pump 4 is connected to the water inlet end of the spraying member 1; the filter 5 is assembled in the recessed space 31 or the input end of the circulation pump 4 to filter the water flowing to the circulation pump 4.

[0050] The microfilter 2 is a barrel-shaped structure as a whole, and a filter screen (not shown) is arranged on the side wall of the microfilter 2. The spray cleaning part 1 has a through hole 11 adapted to the microfilter 2, and the through hole 11 can be a circular hole. The water spray end 12 is arranged inside and / or outside the through hole 11, and the specific distribution can be designed according to the actual situation.

[0051] The spraying member 1 is sleeved on the outside of the microfilter 2 , so that the water spraying end 12 surrounds the outside of the microfilter 2 and is aligned with the filter screen of the microfilter 2 .

[0052] The spray cleaning component 1 is used to be connected to a water source. After the water flows to the spray cleaning component 1, it is sprayed out from the water spray end 12. The water passes through the filter net and rinses the microfilter 2 (mainly the inner side), washing away the attachments on the microfilter 2, reducing the coverage area of ​​the attachments, and increasing the water flow area of ​​the microfilter 2, thereby achieving the purpose of cleaning the microfilter 2. This saves the user the trouble of manually removing and cleaning the microfilter 2, thereby greatly improving the user's experience.

[0053] The water cup 3 is a common component of a dishwasher and will not be described in detail here. The water cup 3 is arranged horizontally. The water cup 3 has a recessed space 31 that is recessed downward to form a barrel shape. The opening of the recessed space 31 is opened at the top of the water cup 3, and the microfilter 2 is fixed to the recessed space 31. At least part of the microfilter 2 extends into the recessed space 31. There is a space between the microfilter 2 and the inner wall of the recessed space 31, and the space is used to accommodate at least part of the spraying part 1. The relative position of the spraying part 1 and the microfilter 2 can be designed according to the actual product.

[0054] The circulation pump 4 is arranged outside the water cup 3, and is connected to the water cup 3 and the spray cleaning part 1 through a hose. Under the action of the circulation pump 4, the water in the recessed space 31 flows to the spray cleaning part 1, and is sprayed out from the water spraying end 12 of the spray cleaning part 1 to clean the microfilter 2. The cleaned water falls into the recessed space 31, flows to the spray cleaning part 1 through the circulation pump 4, and cleans the microfilter 2 again, realizing cyclic cleaning, achieving the purpose of multiple cleaning, and saving cleaning water. In addition, the cleaning water pressure can be guaranteed to rinse the microfilter 2 cleanly, and the cleaning effect can be guaranteed.

[0055] The filter element 5 is used to filter the water flowing to the spray cleaning element 1, filter out pollutants, ensure that the water during cleaning is clean, prevent pollutants in the water from adhering to the microfilter 2, and further ensure the cleaning effect.

[0056] like Figure 3 , 5 , 6 and 7, as an optional embodiment, the water cup 3 is provided with a plug-in hole 32 on the outside of the recessed space 31, and a recessed slot 33 is formed between the plug-in hole 32 and the recessed space 31; the water inlet end of the spraying part 1 has a water inlet pipe 13, which is accommodated in the slot 33 and connected to the output end of the circulation pump 4 after passing through the plug-in hole 32.

[0057] Based on the above embodiments, in this embodiment, the top of the microfilter 2 is higher than the opening of the recessed space 31, and the spraying part 1 is lower than the top of the microfilter 2 and is arranged close to the opening of the recessed space 31. The plug-in hole 32 is provided at the water cup 3 away from the opening of the recessed space 31, and the plug-in hole 32 is a through-hole structure. The card slot 33 extends to the plug-in hole 32 and the recessed space 31, and optionally, the card slot 33 is connected to the plug-in hole 32 and the recessed space 31. The water inlet end of the water inlet pipe 13 is inserted into the plug-in hole 32, and part of the water inlet pipe 13 is inserted into the card slot 33 to form a stable support and limiting structure, so that the spraying part 1 is "suspended" and sleeved on the outside of the microfilter 2.

[0058] The output end of the circulation pump 4 is connected to the water inlet pipe 13 through a hose. For example, the hose is inserted into the plug hole 32 from the other side to form a water circulation path.

[0059] In some embodiments, the spraying member 1 has a water inlet interface 18, which can be a tubular structure. The water inlet interface 18 is detachably connected to the water inlet pipe 13, such as a snap connection or an interference connection. The water inlet pipe 13 is a curved structure, and the water inlet pipe 13 has a first section and a second section that are connected at an angle; wherein at least part of the first section is inserted into the plug hole 32, and the second section is connected to the water inlet interface 18 and is snapped into the card slot 33. The bent water inlet pipe 13 can ensure the connection strength of the plug-in; in addition, the bending angle of the water inlet pipe 13 can be adjusted to adjust the relative position of the spraying member 1 and the water cup 3.

[0060] like Figure 4 As shown, as an optional embodiment, the water spray end 12 includes a plurality of in-hole spray portions 121 , and the plurality of in-hole spray portions 121 are arranged on the hole wall of the through hole 11 .

[0061] Based on the above embodiments, in this embodiment, the in-hole injection part 121 is arranged in the through hole 11, that is, the inner side of the spray cleaning part 1. A plurality of in-hole injection parts 121 are evenly arranged along the circumferential direction to achieve uniform distribution of the flushing range.

[0062] like Figure 4 As shown, as an optional embodiment, the water spray end 12 also includes a plurality of out-of-hole spray portions 122, which are arranged on the side of the spraying member 1 facing the bottom of the recessed space 31; the spray direction of the in-hole spray portion 121 is arranged at an angle to the spray direction of the out-of-hole spray portion 122.

[0063] Based on the above embodiments, in this embodiment, the outer-hole jet part 122 is arranged at the bottom of the spray cleaning part 1. A plurality of outer-hole jet parts 122 are evenly arranged along the circumference. The jet direction of the inner-hole jet part 121 is set at an angle to the jet direction of the outer-hole jet part 122 to maximize the flushing range and avoid flushing dead angles.

[0064] Optionally, there are multiple injection directions in the multiple in-hole injection parts 121.

[0065] Optionally, there are multiple injection directions in the multiple out-of-hole injection portions 122 .

[0066] like Figure 7 As shown, in some embodiments, the in-hole injection part 121 and / or the out-hole injection part 122 is a through-hole structure, and the flow area of ​​the through-hole structure gradually increases along the water spraying direction. Optionally, the through-hole structure is a fan-shaped hole. This arrangement can ensure the spraying range of the water spraying end 12 and improve the flushing effect. Optionally, the in-hole injection part 121 sprays horizontally, and the out-hole injection part 122 sprays toward the inside of the through-hole 11 and downwards, so as to achieve multi-angle cleaning of the microfilter 2. Optionally, both the in-hole injection part 121 and the out-hole injection part 122 spray toward the inside of the through-hole 11 and downwards.

[0067] like Figure 8 , 9 As shown in 11 and 12, as an optional embodiment, the spray cleaning part 1 includes an annular cover body 14 and a bottom shell 15; the cover body 14 and the bottom shell 15 surround an annular water cavity 16, and the cavity wall of the water cavity 16 is provided with a water spray end 12 and a water inlet pipe 13 connected to the water cavity 16.

[0068] Based on the above embodiments, in this embodiment, the cover body 14 is covered on the bottom shell 15 from above, and the cover body 14 and the bottom shell 15 are detachably connected, for example, by snapping. The water cavity 16 is a space for water to flow, and water flows into the water cavity 16 through the water inlet pipe 13, flows along the water cavity 16, and is sprayed out from each water spray end 12, so as to achieve multi-angle and wide-range washing and improve the washing effect.

[0069] In some embodiments, a plurality of first clip structures 142 are evenly arranged along the circumference of the side edge of the cover body 14; a plurality of second clip structures 153 for cooperating with the first clip structures 142 are evenly arranged along the circumference of the side edge of the bottom shell 15, and the cover body 14 and the bottom shell 15 are clipped together by the cooperation between the first clip structures 142 and the second clip structures 153; optionally, one of the first clip structures 142 and the second clip structures 153 is a buckle and the other is a clip hole.

[0070] like Figure 8 , 10 As shown in FIG. 12 , as an optional embodiment, the spray cleaning member 1 further includes a sealing ring 17 , which is sandwiched between the cover body 14 and the bottom shell 15 .

[0071] The above solution can realize the sealed connection between the cover body 14 and the bottom shell 15 .

[0072] like Figure 8-12As shown, as an optional embodiment, the bottom shell 15 has an annular water groove 151 arranged along the circumferential direction, and the opening of the annular water groove 151 faces the cover body 14; the sealing ring 17 is clamped at the opening of the annular water groove 151, and an annular positioning groove 171 is formed on the side of the sealing ring 17 facing the cover body 14; an annular protrusion 141 is formed on the side of the cover body 14 facing the bottom shell 15, and the annular protrusion is pressed into the annular positioning groove 171.

[0073] Based on the above embodiments, in this embodiment, the bottom shell 15 includes a bottom shell body 152, the bottom shell body 152 has an annular water groove 151 with an opening facing upward, and a support structure is formed on the top of the annular water groove 151, and the support structure can be a support groove 154 with a width greater than the annular water groove 151, and the bottom of the support groove 154 is the top of the annular water groove 151 and is connected to the annular water groove 151. The support groove 154 is supported at the bottom of the sealing ring 17. The sealing ring 17 and the cover body 14 are concave and convex. More specifically, the sealing ring 17 includes a sealing ring body 172, and the top of the sealing ring body 172 has an annular positioning groove 171 that is concave downward. The cover body 14 includes a cover body body 143, and the cover body body 143 has an annular protrusion 141 extending downward. The cover 14 and the bottom shell 15, the annular protrusion 141 is embedded in the annular positioning groove 171, and the cover 14, the bottom shell 15 and the sealing ring 17 are tightly connected to achieve a sealed connection between the cover 14 and the bottom shell 15. The aforementioned in-hole injection part 121, the out-hole injection part 122 and the water inlet interface 18 are all arranged on the bottom shell 15. Below the sealing ring 17 is a space for water to flow.

[0074] like Fig.13 , 14 As shown in FIG. 15 , as an optional embodiment, the filter element 5 is roughly L-shaped, having a first plug-in portion 52 and a filter hole 51; a circulating pump connecting hole 35 connected to the input end of the circulating pump 4 is provided on the bottom side wall of the recessed space 31, and a second plug-in portion 34 for cooperating with the first plug-in portion 52 is provided at the bottom of the recessed space 31; the filter hole 51 covers the circulating pump connecting hole 35.

[0075] Based on the above embodiments, in this embodiment, a plurality of filter holes 51 are evenly formed on the filter element 5, and the first plug-in portion 52 is disposed on one side of the filter hole 51. The filter element 5 and the water cup 3 are detachably connected by plugging, so that the filter element 5 can be disassembled and cleaned to prevent the filter element 5 from losing or reducing the filtering function. The clogged filter holes 51 will also reduce the flow rate of the circulating water, thereby reducing the flushing effect.

[0076] In some embodiments, the filter element 5 includes a first plate 53 and a second plate 54 connected at an angle, which are generally L-shaped; optionally, the first plate 53 and the second plate 54 are connected vertically. The first plate 53 is provided with a filter hole 51, and the second plate 54 is provided with a plug hole, which can increase the adaptability of the filter element 5. By adjusting the connection angle of the first plate 53 and the second plate 54, the installation position of the filter element 5 can be adjusted. A convex column protruding from the bottom of the recessed space 31 is provided near the circulation pump communication hole 35, and the convex column is inserted into the aforementioned plug hole, and the filter hole 51 covers the circulation pump communication hole 35.

[0077] like Fig.16 As shown, as an optional embodiment, the microfilter cleaning device also includes a respirator 6 and a water softener 7; the respirator 6 and the water softener 7 are both arranged on one side of the water cup 3, the input end of the respirator 6 is connected to the water source, the output end of the respirator 6 is connected to the input end of the water softener 7, and the output end of the water softener 7 is connected to the bottom of the recessed space 31.

[0078] In some embodiments, the respirator 6, the water softener 7 and the water cup 3 are sequentially connected through a pipe. More specifically, the bottom of the water cup 3 has a water inlet hole connected to the recessed space 31, and the output end of the water softener 7 is connected to the water inlet hole for supplying water to the recessed space 31.

[0079] like Fig.16 As shown, based on the same utility model concept, an embodiment of the present application provides a dishwasher, which mainly includes the microfilter cleaning device of any one of the aforementioned embodiments.

[0080] Based on the above embodiment, in this embodiment, the dishwasher further includes a base 8, a water inlet valve 9, a drain pipe 100 and a drain pump 200. The base 8 provides installation space and support for each component. The water inlet valve 9 can be arranged upstream of the respirator 6 to control the conduction or disconnection of the water path. A drain hole is provided at the bottom of the recessed space 31, and the drain hole is connected to the drain pump 200, and the drain pump 200 is also connected to the drain pipe 100. Through the above scheme, after cleaning the microfilter 2, the cleaned sewage is discharged from the water cup 3 through the drain pipe 100.

[0081] The specific cleaning process of the dishwasher in this embodiment includes:

[0082] After the water inlet valve 9 is opened, water enters, and the water flows through the water inlet valve 9, the respirator 6 and the water softener 7 in sequence and then flows into the recessed space 31 of the water cup 3; under the action of the circulation pump 4, the water flows through the circulation pump 4 and the corresponding hose into the spray cleaning part 1, and the water is sprayed from the circulation pump 4 to the inner and outer surfaces of the microfilter 2, and the microfilter 2 is flushed and cleaned all around. The cleaned water falls into the recessed space 31, and one cleaning is completed; multiple cleanings are achieved through the above-mentioned cycle. When the washing is completed, the drainage pump 200 works to discharge the dirty water after washing out of the dishwasher in time.

[0083] By applying the embodiments of the present application, at least the following beneficial effects can be achieved:

[0084] The water is filtered through the filter element 5 and flushed with circulating filtered water to ensure that the water used for cleaning is clean, save cleaning water, and maintain the water pressure to ensure the flushing effect, so that attachments do not adhere to the microfilter 2, ensure that the washing pump can wash normally without empty suction, and improve the washing efficiency of the dishwasher.

[0085] The spray cleaning component 1 is sleeved on the outside of the microfilter 2, and the water spray end 12 surrounds the outside of the microfilter 2 and is aligned with the filter screen of the microfilter 2. Water flows to the spray cleaning component 1 and is sprayed out from the water spray end 12. The water passes through the filter screen and rinses the inside of the microfilter 2, flushing down the attachments on the microfilter 2, reducing the coverage area of ​​the attachments, and increasing the water flow area of ​​the microfilter 2, thereby achieving the purpose of cleaning the microfilter 2, saving the user the trouble of manually cleaning the microfilter 2, and greatly improving the user's experience.

[0086] In the description of the present application, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0087] 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0088] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0089] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0090] The above description is only a partial implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A microfilter cleaning device, applied to a dishwasher, characterized in that: include: A spray cleaning member (1) having a through hole (11) and a water spray end (12) arranged around the through hole (11), wherein the spray cleaning member (1) surrounds the outside of the microfilter (2) through the through hole (11), and the water spray end (12) faces the filter screen of the microfilter (2); A water cup (3) having a recessed space (31) for accommodating the microfilter (2); a circulation pump (4) disposed on one side of the water cup (3), the input end of the circulation pump (4) being connected to the bottom of the recessed space (31), and the output end of the circulation pump (4) being connected to the water inlet end of the spray cleaning member (1); and A filter element (5) is installed in the recessed space (31) or at the input end of the circulation pump (4) to filter water flowing to the circulation pump (4).

2. The microfilter cleaning device according to claim 1, characterized in that: The water cup (3) is provided with an inserting hole (32) on the outside of the recessed space (31), and a recessed slot (33) is formed between the inserting hole (32) and the recessed space (31); The water inlet end of the spray cleaning component (1) is provided with a water inlet pipe (13), and the water inlet pipe (13) is accommodated in the card slot (33) and is connected to the output end of the circulation pump (4) after passing through the plug hole (32).

3. The microfilter cleaning device according to claim 2, characterized in that: The water spray end (12) comprises a plurality of in-hole spray portions (121), and the plurality of in-hole spray portions (121) are arranged on the hole wall of the through hole (11).

4. The microfilter cleaning device according to claim 3, characterized in that: The water spray end (12) further comprises a plurality of out-of-hole spray portions (122), wherein the plurality of out-of-hole spray portions (122) are arranged on a side of the spray cleaning member (1) facing the bottom of the recessed space (31); The spraying direction of the in-hole spraying portion (121) and the spraying direction of the out-hole spraying portion (122) are arranged at an angle.

5. The microfilter cleaning device according to any one of claims 2 to 4, characterized in that: The spray cleaning element (1) comprises an annular cover (14) and a bottom shell (15); The cover body (14) and the bottom shell (15) surround an annular water cavity (16), and the cavity wall of the water cavity (16) is provided with the water spray end (12) and the water inlet pipe (13) which are connected to the water cavity (16).

6. The microfilter cleaning device according to claim 5, characterized in that: The spray cleaning part (1) further comprises: The sealing ring (17) is sandwiched between the cover body (14) and the bottom shell (15).

7. The microfilter cleaning device according to claim 6, characterized in that: The bottom shell (15) has an annular water groove (151) arranged along the circumference, and the opening of the annular water groove (151) faces the cover body (14); the sealing ring (17) is clamped at the opening of the annular water groove (151), and an annular positioning groove (171) is formed on the side of the sealing ring (17) facing the cover body (14); and an annular protrusion (141) is formed on the side of the cover body (14) facing the bottom shell (15), and the annular protrusion is pressed into the annular positioning groove (171).

8. The microfilter cleaning device according to claim 1, characterized in that: The filter element (5) is substantially L-shaped and has a first plug-in portion (52) and a filter hole (51); A circulating pump connecting hole (35) communicating with the input end of the circulating pump (4) is provided on the bottom side wall of the recessed space (31); a second plug-in portion (34) for cooperating with the first plug-in portion (52) is provided at the bottom of the recessed space (31); and the filtering hole (51) covers the circulating pump connecting hole (35).

9. The microfilter cleaning device according to claim 1, characterized in that: It also includes a respirator (6) and a water softener (7); The respirator (6) and the water softener (7) are both arranged on one side of the water cup (3); the input end of the respirator (6) is connected to a water source; the output end of the respirator (6) is connected to the input end of the water softener (7); and the output end of the water softener (7) is connected to the bottom of the recessed space (31).

10. A dishwasher, characterized in that: include: A microfilter cleaning device as claimed in any one of claims 1 to 9.

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