A filter assembly of a dishwasher and a dishwasher

Abstract

This utility model discloses a filter assembly for a dishwasher and the dishwasher itself. The filter assembly includes a water cup mounted on the base of the dishwasher's inner drum. The water cup includes a cup body and a cup cavity within the cup body. A filter structure includes a filter screen tube disposed within the cup cavity, with openings at both the upper and lower ends of the filter screen tube. A scraper structure includes a scraper support and a scraper body mounted on the scraper support. The scraper support is located at the lower opening of the filter screen tube and rotatably connected to the water cup body. A gap exists between the periphery of the scraper support and the inner surface of the filter screen tube. The scraper body is located on the inner surface of the filter screen tube and abuts against it. A drive structure is mounted on the water cup body and is drively connected to the scraper support. The drive structure can drive the scraper support to rotate relative to the water cup body, allowing the scraper body to scrape against the inner surface of the filter screen tube.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a filter component and dishwasher. Background Technology

[0002] With the improvement of people's living standards and the change of consumption concepts, dishwashers have gradually entered many households and become one of the mainstream kitchen appliances.

[0003] Currently, dishwasher filters typically consist of a primary, secondary, and tertiary filter to progressively filter food residue, resulting in a better filtration effect. A screen is usually used as the final filter to remove finer food particles; however, existing screens are generally integrated with the primary filter and fixed to the water cup, making them difficult to remove for cleaning.

[0004] Therefore, there is an urgent need for a dishwasher filter assembly to solve the above problems. Utility Model Content

[0005] The present invention aims to at least partially solve one of the problems existing in the prior art. To this end, the present invention proposes a filter assembly for a dishwasher that can achieve self-cleaning of the filter screen.

[0006] The above objectives are achieved through the following technical solutions:

[0007] A dishwasher filter assembly includes:

[0008] A water cup is installed on the base of the washing tub of a dishwasher. The water cup includes a water cup body and a cup cavity disposed within the water cup body.

[0009] The filter structure includes a filter screen tube disposed in the cup cavity, and the filter screen tube has openings at both its upper and lower ends;

[0010] The scraper structure includes a scraper support and a scraper body mounted on the scraper support. The scraper support is located at the opening at the lower end of the filter screen tube and is rotatably connected to the water cup body. There is a gap between the periphery of the scraper support and the inner side of the filter screen tube. The scraper body is located on the inner side of the filter screen tube and abuts against the inner side of the filter screen tube.

[0011] A drive structure is installed on the water cup body and is connected to the scraper support in a transmission manner. The drive structure can drive the scraper support to rotate relative to the water cup body, so that the scraper body can scrape the inside of the filter screen tube.

[0012] Optionally, the drive structure includes a water pump and a transmission structure. The water pump includes a drive motor and an impeller disposed on the output shaft of the drive motor. One end of the transmission structure is connected to the center of the output shaft or the impeller, and the other end of the transmission structure is connected to the scraper support. The drive motor can drive the impeller to rotate and simultaneously drive the scraper support to rotate through the transmission structure.

[0013] Optionally, the transmission structure includes a transmission shaft and a first transmission gear. The transmission shaft is connected to the center of the output shaft or the impeller. The first transmission gear is mounted on the transmission shaft. The scraper support includes a support body and a second transmission gear disposed on the support body. The first transmission gear and the second transmission gear are meshed and connected for transmission.

[0014] Optionally, the output shaft is arranged in a horizontal direction, the first transmission gear is arranged in a vertical direction, and the second transmission gear is arranged in a horizontal direction on the lower side of the support body.

[0015] Optionally, the drive shaft and the output shaft are integrally formed.

[0016] Optionally, the scraper support further includes a plug-in fixing member disposed on the upper side of the support body, and the scraper body is inserted into the plug-in fixing member in a vertical direction.

[0017] Optionally, the scraper support further includes a first stirring rib disposed on the side of the support body and a second stirring rib disposed on the lower side of the support body, wherein the first stirring rib and the second stirring rib both extend from the middle of the support body toward the outer periphery of the support body.

[0018] Optionally, it also includes a screw, and the scraper support also includes a shaft hole provided in the middle of the support body. The water cup body is provided with a rotating shaft located on the bottom side of the cup cavity. The shaft hole is sleeved on the rotating shaft, and the screw passes through the shaft hole from top to bottom and is threadedly connected to the rotating shaft.

[0019] Optionally, the filtration structure further includes a top filter and a filter basket. The top filter is installed at the upper end of the filter tube and protrudes from the upper side of the chassis. The filter basket is detachably placed inside the filter tube.

[0020] Another aspect of this utility model provides a dishwasher, including a washing tub and the aforementioned dishwasher filter assembly.

[0021] Compared with the prior art, the present invention has at least the following beneficial effects:

[0022] The dishwasher filter assembly provided by this utility model has a scraper body installed inside the filter screen tube. The scraper support is driven by a drive structure, which in turn drives the scraper body to scrape along the inner wall of the filter screen tube, thereby scraping off the food residue particles adhering to the filter screen tube and achieving self-cleaning of the filter screen tube. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the dishwasher filter assembly installed on the chassis of the dishwasher washing tub according to a specific embodiment of the present utility model.

[0024] Figure 2 yes Figure 1 A sectional view;

[0025] Figure 3 This is an assembly diagram of the water pump, transmission structure and scraper structure of the dishwasher filter assembly provided in a specific embodiment of the present utility model.

[0026] Figure 4 This is a schematic diagram of the assembly of the scraper support, water pump, and transmission structure of the dishwasher filter assembly provided in a specific embodiment of the present utility model.

[0027] Figure 5 This is a three-dimensional structural diagram of the scraper support of the dishwasher filter assembly provided in a specific embodiment of the present invention.

[0028] In the picture:

[0029] 1. Water cup; 11. Water cup body; 10. Cup cavity; 12. Spinning shaft;

[0030] 2. Filtration structure; 21. Top filter; 22. Filter basket; 23. Filter mesh tube;

[0031] 3. Scraper structure; 31. Scraper support; 311. Support body; 312. Insertion fastener; 313. Second transmission gear; 3141. First stirring rib; 3142. Second stirring rib; 32. Scraper body;

[0032] 4. Water pump; 41. Drive motor; 42. Impeller;

[0033] 5. Transmission structure; 51. Transmission shaft; 52. First transmission gear;

[0034] 6. Chassis;

[0035] 7. Screws. Detailed Implementation

[0036] The following embodiments illustrate the present invention, but the present invention is not limited to these embodiments. Modifications to the specific implementation of the present invention or equivalent substitutions for some technical features, without departing from the spirit of the present invention, should all be covered within the scope of the technical solution claimed by the present invention.

[0037] Please refer to Figures 1-5 This utility model provides a filter assembly for a dishwasher, including a water cup 1, a filter structure 2, a scraper structure 3, and a drive structure. The water cup 1 is mounted on the base 6 of the dishwasher's inner washing tub. The water cup 1 includes a water cup body 11 and a cup cavity 10 disposed within the water cup body 11. The filter structure 2 includes a filter screen tube 23 disposed within the cup cavity 10, with openings at both the upper and lower ends of the filter screen tube 23. The scraper structure 3 includes a scraper support 31 and a scraper body 32 mounted on the scraper support 31. The scraper support 31 is located at the lower opening of the filter screen tube 23 and is rotatably connected to the water cup body 11. A gap exists between the periphery of the scraper support 31 and the inner surface of the filter screen tube 23. The scraper body 32 is located on the inner side of the filter screen tube 23 and abuts against the inner side of the filter screen tube 23. The drive structure is mounted on the water cup body 11 and is connected to the scraper support 31. The drive structure can drive the scraper support 31 to rotate relative to the water cup body 11, so that the scraper body 32 can scrape the inside of the filter tube 23.

[0038] The dishwasher filter assembly provided by this utility model has a scraper body 32 installed inside the filter tube 23. The scraper support 31 is driven by a drive structure, which in turn drives the scraper body 32 to scrape along the inner wall of the filter tube 23, scraping off the food residue particles adhering to the filter tube 23. The food residue particles then flow out of the water cup 1 through the gap between the periphery of the scraper support 31 and the inner side of the filter tube 23, thereby achieving self-cleaning of the filter tube 23.

[0039] Optionally, the drive structure includes a water pump 4 and a transmission structure 5. The water pump 4 includes a drive motor 41 and an impeller 42 mounted on the output shaft of the drive motor 41. One end of the transmission structure 5 is connected to the output shaft or the center of the impeller 42, and the other end of the transmission structure 5 is connected to the scraper support 31. The drive motor 41 can drive the impeller 42 to rotate, and at the same time, drive the scraper support 31 to rotate through the transmission structure 5. By setting the transmission structure 5, the scraper support 31 can use the dishwasher's own water pump 4 as a power source. During the water pumping process, the scraper support 31 is rotated, which in turn drives the scraper body 32 to scrape off food residue particles on the filter tube 23. At the same time, the water flow in the water cup 1 washes away the scraped food residue. The structure is simple and compact, the power source is simple, and the self-cleaning of the filter tube 23 can be achieved directly in the normal washing program of the dishwasher. Of course, in other embodiments, a separate self-cleaning program can also be set in the dishwasher. In the separate self-cleaning program, a smaller water intake (such as 2.5L) can be set, and then the water pump 4 is started. After running for a period of time, the drainage and drying program is performed, thereby achieving the self-cleaning of the filter screen 23.

[0040] Optionally, the transmission structure 5 includes a transmission shaft 51 and a first transmission gear 52. The transmission shaft 51 is connected to the center of the output shaft or impeller 42. The first transmission gear 52 is mounted on the transmission shaft 51. The scraper support 31 includes a support body 311 and a second transmission gear 313 disposed on the support body 311. The first transmission gear 52 and the second transmission gear 313 mesh and are connected for transmission. The structure is simple and the transmission connection has good stability.

[0041] Optionally, the output shaft is arranged in a horizontal direction, the first transmission gear 52 is arranged in a vertical direction, and the second transmission gear 313 is arranged in a horizontal direction on the lower side of the support body 311, so as to facilitate the distribution of the structure in the water cup 1.

[0042] Optionally, the drive shaft 51 and the output shaft are integrally formed, which results in a simple and compact structure with high integration, thereby improving transmission stability.

[0043] Optionally, the scraper support 31 also includes a plug-in fixing member 312 disposed on the upper side of the support body 311, and the scraper body 32 is inserted into the plug-in fixing member 312 in a vertical direction, thereby realizing the installation of the scraper body 32 on the support body 311.

[0044] Optionally, the scraper body 32 is provided with at least two scrapers to improve the scraping effect.

[0045] Optionally, the scraper body 32 is made of flexible rubber or flexible PVC to avoid rigid contact with the filter tube 23 and scratching the filter tube 23.

[0046] Optionally, the scraper support 31 further includes a first stirring rib 3141 disposed on the upper side of the support body 311 and a second stirring rib 3142 disposed on the bottom side of the support body 311. Both the first stirring rib 3141 and the second stirring rib 3142 extend from the middle of the support body 311 toward the outer periphery of the support body 311. By providing the first stirring rib 3141, water can splash upwards from the support body 311 and land on the inner wall of the filter screen tube 23, thereby allowing food residue particles scraped off by the scraper body 32 to be washed away, then fall with the water flow, and finally flow out through the gaps to the water pump 4, thus being discharged from the water cup 1. Specifically, the first stirring rib 3141 can guide the water flow above the support body 311 along... Figure 2 The water is stirred upwards in the direction indicated by the middle arrow A so that the water flow can wash against the inner wall of the filter screen tube 23. The second stirring rib 3142 can agitate the water flow below the support body 311 along... Figure 2 The water is agitated upwards through the gap in the direction indicated by the middle arrow B, so that the water flow washes against the inner wall of the filter screen tube 23.

[0047] Optionally, it also includes screw 7. The scraper support 31 also includes a shaft hole in the middle of the support body 311. The water cup body 11 is provided with a rotating shaft 12 located on the bottom side of the cup cavity 10. The shaft hole is sleeved on the rotating shaft 12. The screw 7 passes through the shaft hole from top to bottom and is threaded to the rotating shaft 12, thereby realizing the rotatable installation of the scraper support 31 on the water cup body 11.

[0048] Optionally, the filter structure 2 also includes a top filter 21 and a filter basket 22. The top filter 21 is installed at the upper end of the filter tube 23 and protrudes from the upper side of the chassis 6. The filter basket 22 is detachably placed inside the filter tube 23. Specifically, food residue is first initially filtered by the top filter 21, then further filtered by the filter basket 22, and finally filtered a third time by the filter tube 23, thereby achieving triple filtration of food residue and improving the filtration effect.

[0049] Another aspect of this utility model provides a dishwasher, including a washing tub and the aforementioned dishwasher filter assembly.

[0050] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A filter assembly for a dishwasher, characterized in that, include: A water cup (1) is installed on the base (6) of the washing tub of a dishwasher. The water cup (1) includes a water cup body (11) and a cup cavity (10) disposed in the water cup body (11). The filter structure (2) includes a filter screen tube (23) disposed in the cup cavity (10), and the filter screen tube (23) has openings at both the upper and lower ends; The scraper structure (3) includes a scraper support (31) and a scraper body (32) mounted on the scraper support (31). The scraper support (31) is located at the opening at the lower end of the filter tube (23) and is rotatably connected to the water cup body (11). There is a gap between the periphery of the scraper support (31) and the inner side of the filter tube (23). The scraper body (32) is located on the inner side of the filter tube (23) and abuts against the inner side of the filter tube (23). A drive structure is installed on the water cup body (11) and is connected to the scraper support (31) in a transmission manner. The drive structure can drive the scraper support (31) to rotate relative to the water cup body (11) so that the scraper body (32) can scrape the inner side of the filter tube (23).

2. The filter assembly of the dishwasher according to claim 1, characterized in that, The drive structure includes a water pump (4) and a transmission structure (5). The water pump (4) includes a drive motor (41) and an impeller (42) disposed on the output shaft of the drive motor (41). One end of the transmission structure (5) is connected to the center of the output shaft or the impeller (42), and the other end of the transmission structure (5) is connected to the scraper support (31). The drive motor (41) can drive the impeller (42) to rotate, and at the same time drive the scraper support (31) to rotate through the transmission structure (5).

3. The filter assembly of the dishwasher according to claim 2, characterized in that, The transmission structure (5) includes a transmission shaft (51) and a first transmission gear (52). The transmission shaft (51) is connected to the center of the output shaft or the impeller (42). The first transmission gear (52) is mounted on the transmission shaft (51). The scraper support (31) includes a support body (311) and a second transmission gear (313) disposed on the support body (311). The first transmission gear (52) and the second transmission gear (313) are meshed and connected for transmission.

4. The filter assembly of the dishwasher according to claim 3, characterized in that, The output shaft is arranged in a horizontal direction, the first transmission gear (52) is arranged in a vertical direction, and the second transmission gear (313) is arranged in a horizontal direction on the lower side of the support body (311).

5. The filter assembly of the dishwasher according to claim 3, characterized in that, The drive shaft (51) is integrally formed with the output shaft.

6. The filter assembly of the dishwasher according to claim 3, characterized in that, The scraper support (31) also includes a plug-in fixing member (312) disposed on the upper side of the support body (311), and the scraper body (32) is inserted into the plug-in fixing member (312) in a vertical direction.

7. The filter assembly of the dishwasher according to claim 3, characterized in that, The scraper support (31) further includes a first stirring rib (3141) disposed on the upper side of the support body (311) and a second stirring rib (3142) disposed on the lower side of the support body (311). The first stirring rib (3141) and the second stirring rib (3142) both extend from the middle of the support body (311) toward the outer periphery of the support body (311).

8. The filter assembly of the dishwasher according to claim 3, characterized in that, It also includes a screw (7), and the scraper support (31) also includes a shaft hole (310) provided in the middle of the support body (311). The water cup body (11) is provided with a rotating shaft (12) located on the bottom side of the cup cavity (10). The shaft hole (310) is sleeved on the rotating shaft (12). The screw (7) passes through the shaft hole (310) from top to bottom and is threaded to the rotating shaft (12).

9. The filter assembly of the dishwasher according to any one of claims 1-8, characterized in that, The filter structure (2) further includes a top filter (21) and a filter basket (22). The top filter (21) is installed at the upper end of the filter tube (23) and protrudes from the upper side of the chassis (6). The filter basket (22) is detachably placed inside the filter tube (23).

10. A dishwasher, characterized in that, Includes a washing tank and a filter assembly of the dishwasher as described in any one of claims 1-9.

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