Dishwasher

Abstract

The utility model provides a kind of dish washer, belong to kitchen equipment technical field.The dish washer includes water cup, filter, drainage pump and transmission assembly, water cup cavity, the bottom of water cup side wall is equipped with the first drain port of intercommunication cavity, water cup side wall is equipped with annular seat corresponding first drain port, the side of annular seat is equipped with second drain port, filter is set in cavity, filter includes main frame and cylindrical filter part, the axial both ends of cylindrical filter part are rotatable and upper frame and lower frame are connected;Drainage pump includes drive part and the impeller on the shaft of installation in drive part, drive part is installed on annular seat, and drive part, annular seat and the side wall of water cup jointly enclose impeller cavity, impeller is located in impeller cavity, at least one flush hole of intercommunication impeller cavity and cavity is opened in water cup side wall;Transmission assembly includes driven member and driving member, driven member is installed in the bottom of cylindrical filter part, driving member is installed on the shaft of drive part.

Description

Technical Field

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

[0002] During the washing cycle, due to the strong suction of the washing pump, a lot of small particulate contaminants will adhere to the filter at the water inlet of the washing pump. These contaminants are difficult to clean, cover the filter surface, block the mesh, reduce the water passage area of ​​the filter, and cause the washing pump to suck dry, which greatly reduces the washing efficiency.

[0003] Because the filter and screen are integrated, and the filter is installed in a fixed position relative to the water inlet of the washing pump after installation in the dishwasher, a lot of dirt accumulates at the water inlet over time. Excessive dirt buildup affects the filtration efficiency and the dishwasher's cleaning performance. Furthermore, because the accumulated dirt is difficult to remove, the filter needs to be manually removed for washing, which is inconvenient and negatively impacts the user experience. Utility Model Content

[0004] The purpose of this invention is to provide a dishwasher that solves the problem of inconvenient filter cleaning, realizes automatic filter cleaning, eliminates the need for manual filter removal for washing, and thus improves the user experience.

[0005] To achieve the objective of this utility model, the following technical solution is adopted:

[0006] According to one aspect of the present invention, a dishwasher is provided, comprising a water cup, a filter, a drain pump, and a transmission assembly. The water cup has an upward-opening cavity, and a first drain outlet communicating with the cavity is provided at the bottom of the side wall of the water cup. An annular seat is provided on the side wall of the water cup corresponding to the first drain outlet, and a second drain outlet is provided on one side of the annular seat. The water cup also has a water inlet and a water suction outlet communicating with the cavity. The filter is disposed in the cavity and includes a main frame and a cylindrical filter part. The main frame includes an upper frame and a lower frame, the upper frame and the lower frame being snapped together, and the lower frame being snapped together with the inner wall of the cavity. The cylindrical filter part... The filter section has two axial ends that are rotatably connected to the upper frame and the lower frame, respectively. The drain pump includes a drive unit and an impeller mounted on the shaft of the drive unit. The drive unit is mounted on an annular seat, and the drive unit, the annular seat, and the side wall of the water cup together form an impeller cavity. The impeller is located inside the impeller cavity. The side wall of the water cup has at least one flushing hole that connects the impeller cavity and the cavity body, and the flushing hole is opposite to the side of the cylindrical filter section. The transmission assembly includes a driven member and a driving member. The driven member is mounted on the bottom of the cylindrical filter section, and the driving member is mounted on the shaft of the drive unit. The driving member and the driven member are connected in a transmission manner.

[0007] According to one embodiment of the present invention, a first annular portion is provided on the inner edge of the upper frame, a second annular portion is provided on the inner edge of the lower frame, and the two axial ends of the cylindrical filter portion are respectively rotatably inserted into the first annular portion and the second annular portion.

[0008] According to one embodiment of the present invention, the lower end of the first annular portion is provided with a downward-opening first annular groove, and the upper end of the cylindrical filter portion is inserted into the first annular groove; or, the upper end of the cylindrical filter portion is provided with an upward-opening first annular groove, and the lower end of the first annular portion is rotatably inserted into the first annular groove.

[0009] According to one embodiment of the present invention, the upper end of the cylindrical filter section is provided with a plurality of first protrusions at intervals, and the first protrusions are in frictional contact with the top wall of the first annular groove; and / or the inner wall of the upper end of the cylindrical filter section is provided with a plurality of first ribs at intervals, and the first ribs are in frictional contact with the side wall of the first annular groove; or, the filter further includes a plurality of first balls, the first balls being rotatably disposed on the upper end of the cylindrical filter section, and the first balls abutting against the top wall of the first annular groove.

[0010] According to one embodiment of the present invention, the lower end of the cylindrical filter section is provided with a second annular groove with the opening facing downward, and the second annular groove is rotatably inserted into the second annular portion; or, the upper end of the second annular portion is provided with a second annular groove with the opening facing upward, and the second annular groove is rotatably inserted into the lower end of the cylindrical filter section.

[0011] According to one embodiment of the present invention, the upper end of the second annular portion is provided with an annular rib, and the upper end of the annular rib is provided with a plurality of second protrusions at intervals. The second annular groove is rotatably inserted into the annular rib, and the second protrusions are in frictional contact with the top wall of the second annular groove. Alternatively, the filter further includes a plurality of second balls, which are rotatably disposed at the upper end of the second annular portion, and the second balls abut against the top wall of the second annular groove.

[0012] According to one embodiment of the present invention, the lower end of the cylindrical filter section is provided with a plurality of first hollow holes, the lower center of the cylindrical filter section is provided with a mounting section, the driven member is provided on the mounting section, the free end of the rotating shaft of the driving section passes through the first drain port and extends into the cavity, the driving member is installed on the free end of the rotating shaft of the driving section, and both the driven member and the driving member are bevel gears.

[0013] According to one embodiment of the present invention, the filter further includes a cup, which is disposed inside the cylindrical filter section. The upper end of the cup is snapped into the upper frame, and the cup has multiple second hollow holes.

[0014] One embodiment of this utility model has the following advantages or beneficial effects:

[0015] This invention relates to a dishwasher. When the drain pump is turned on, the drive unit rotates the impeller and the driving component via a rotating shaft. The driving component then rotates the driven component and the cylindrical filter section. As the impeller rotates at high speed, water is thrown out at high speed through the second drain port under centrifugal force. Because the water pressure inside the impeller chamber is greater than the water pressure inside the chamber itself, some water inside the impeller chamber is sprayed in the opposite direction through the flushing holes towards the side of the cylindrical filter section to flush the side filter screen and remove residue adhering to it. Simultaneously, the rotating cylindrical filter section throws away residual water and residue, accelerating the drying of the cylindrical filter section and achieving self-cleaning of the filter. This eliminates the need for manual removal of the filter for washing, thereby improving the user experience. Attached Figure Description

[0016] The above and other features and advantages of this invention will become more apparent from a detailed description of exemplary embodiments with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of a dishwasher filter and drain pump mounted on a water cup, according to an exemplary embodiment.

[0018] Figure 2 This is a cross-sectional view of a water cup in a dishwasher according to an exemplary embodiment.

[0019] Figure 3 yes Figure 2 An enlarged view of part A is shown.

[0020] Figure 4 yes Figure 2 An enlarged view of part B is shown.

[0021] Figure 5 yes Figure 2 An enlarged view of section C is shown.

[0022] Figure 6 This is a split view of a water cup, filter, and drain pump according to an exemplary embodiment.

[0023] Figure 7 This is a perspective view of a water cup in a dishwasher according to an exemplary embodiment.

[0024] Figure 8 This is a diagram illustrating the engagement of the driven member and the driving member according to an exemplary embodiment.

[0025] Figure 9 This is a split view of the main frame according to an exemplary embodiment.

[0026] Figure 10 This is a perspective view of the lower frame according to an exemplary embodiment.

[0027] Figure 11 This is a perspective view of a cylindrical filter section according to an exemplary embodiment.

[0028] Figure 12 This is a state diagram showing the third and fourth latching parts when they are latched together, according to an exemplary embodiment.

[0029] The reference numerals in the attached figures are explained as follows:

[0030] 1. Water cup; 11. Cavity; 12. First drain outlet; 13. Annular seat; 131. Second drain outlet; 132. Impeller cavity; 14. Flushing hole; 15. Annular step; 151. Third snap-fit ​​part; 2. Filter; 21. Main frame; 211. Upper frame; 2111. First annular part; 2112. First annular groove; 2113. First snap-fit ​​part; 2114. Fifth snap-fit ​​part; 2115. Clearance groove; 212. Lower frame; 2121. Second annular part; 2122. Annular rib; 2123. Second protrusion; 2125. Fourth snap-fit ​​part; 2126. Second snap-fit ​​part; 22. Cylindrical filter part; 221. First protrusion; 222. First rib; 224. Second annular groove; 225. First hollow hole; 226. Mounting part; 23. Cup; 231. Second hollow hole; 232. Handle; 2321. Sixth snap-fit ​​part; 2322. Circular part; 3. Drain pump; 31. Drive part; 311. Rotating shaft; 32. Impeller; 4. Transmission assembly; 41. Driven component; 42. Driven component; 6. Inner liner bottom wall; 7. Planar filter; Detailed Implementation

[0031] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0032] The terms “a,” “one,” “the,” and “the” are used to indicate the existence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended meaning of inclusion and that other elements / components / etc. may exist in addition to the listed elements / components / etc.

[0033] like Figure 1-12 As shown, a dishwasher according to an embodiment of the present invention includes an outer shell, a control panel, an inner liner disposed within the outer shell, a flat filter 7, a spray arm support, a spray arm, a washing pump, a water cup 1, a filter 2, a drain pump 3, and a transmission assembly 4.

[0034] The water cup 1 has an upward-facing cavity 11. A first drain outlet 12 communicating with the cavity 11 is provided at the bottom of the side wall of the water cup 1. A ring seat 13 is provided on the outer side wall of the water cup 1 corresponding to the first drain outlet 12. A second drain outlet 131 is provided on one side of the ring seat 13. The water cup 1 also has a water inlet and a water suction port communicating with the cavity 11. The water suction connector of the washing pump is connected to the water suction port. An external water supply pipe is connected to the water inlet. An inlet valve is provided on the external water supply pipe.

[0035] The filter 2 is disposed within the cavity 11, and an annular cavity exists between the filter 2 and the side wall of the cavity 11. The filter 2 includes a main frame 21 and a cylindrical filter section 22. The main frame 21 includes an upper frame 211 and a lower frame 212, which are snapped together. The lower frame 212 is snapped together with the inner wall of the cavity 11. The two axial ends of the cylindrical filter section 22 are rotatably connected to the upper frame 211 and the lower frame 212, respectively. Both the upper frame 211 and the lower frame 212 have multiple perforations. The cylindrical filter section 22 is used to prevent residue from being sucked into the washing pump, thus avoiding affecting the washing effect.

[0036] The drain pump 3 includes a drive unit 31 and an impeller 32 mounted on a rotating shaft 311 of the drive unit 31. The drive unit 31 is mounted on an annular seat 13, and the drive unit 31, the annular seat 13 and the side wall of the water cup 1 together form an impeller cavity 132 that communicates with the cavity 11. The impeller 32 is located inside the impeller cavity 132. When the impeller 32 rotates at high speed, water is thrown out at high speed through the second drain port 131 under the action of centrifugal force.

[0037] The side wall of the water cup 1 has at least one flushing hole 14 that connects the impeller cavity 132 and the cavity 11, and the flushing hole 14 is opposite to the side of the cylindrical filter section 22.

[0038] The transmission assembly 4 includes a driven member 41 and a driving member 42. The driven member 41 is installed at the bottom of the cylindrical filter section 22, and the driving member 42 is installed on the rotating shaft 311. The driving member 42 is connected to the driven member 41 in a transmission manner.

[0039] The upper end of the water cup 1 is connected to the bottom wall 6 of the inner liner. The bottom wall 6 of the inner liner has a groove, and the bottom wall of the groove of the inner liner 6 has a first through hole corresponding to the cavity 11. The flat filter 7 is set at the upper end of the groove of the bottom wall 6 of the inner liner. The flat filter 7 is flat and has a second through hole corresponding to the upper frame 211. The inner edge of the second through hole abuts against the outer edge of the upper frame 211. The flat filter 7 has filter mesh holes. When the water after rinsing the tableware falls on the flat filter 7, the water flows down through the filter mesh holes into the groove of the bottom wall 6 of the inner liner and flows into the cavity 11 through the first through hole; while the residue cannot pass through the filter mesh holes of the flat filter 7 and is flushed into the filter 2 through the second through hole.

[0040] After the tableware is rinsed, the drain pump 3 is turned on, and the drive unit 31 drives the impeller 32 and the driving component 42 to rotate through the rotating shaft 311. The driving component 42 drives the driven component 41 and the cylindrical filter unit 22 to rotate.

[0041] When the impeller 32 rotates at high speed, water is thrown out at high speed through the second drain port 131 under the action of centrifugal force. Since the water pressure in the impeller cavity 132 is greater than the water pressure in the cavity 11, some of the water in the impeller cavity 132 is sprayed in the opposite direction through the flushing hole 14 towards the side of the cylindrical filter section 22 to flush the filter screen on the side of the cylindrical filter section 22 and wash away the residue attached to the filter screen.

[0042] When the water in the cavity 11 is discharged and there is little remaining, the impeller 32 rotates at high speed to draw air from the cavity 11, making the pressure in the impeller cavity 132 higher than the air pressure in the cavity 11, so that the water in the impeller cavity 132 continues to be sprayed and rinsed from the flushing hole 14 to the side of the cylindrical filter section 22.

[0043] At the same time, the cylindrical filter section 22 rotates and throws away residual water and residue, thus drying the cylindrical filter section 22, achieving self-cleaning of the filter, and preventing mold and bacteria growth.

[0044] like Figure 2 , 4 As shown, in a preferred embodiment of this utility model, a first annular portion 2111 is provided on the inner edge of the upper frame 211, such as... Figure 2 , 5 As shown, the lower frame 212 has a second annular portion 2121 on its inner edge. The two ends of the cylindrical filter portion 22 are rotatably connected to the first annular portion 2111 and the second annular portion 2121 respectively, so as to realize the coaxial rotation of the cylindrical filter portion 22.

[0045] like Figure 4 , 9 As shown, in a preferred embodiment of this utility model, the lower end of the first annular portion 2111 has a downward-opening first annular groove 2112, and the upper end of the cylindrical filter portion 22 is inserted into the first annular groove 2112 to achieve coaxial rotation. The cross-section of the first annular groove is slightly larger than the cross-section of the upper end of the cylindrical filter portion 22, so that the upper end of the cylindrical filter portion 22 can rotate freely within the first annular groove 2112.

[0046] Of course, the first annular groove 2112 is not limited to being located at the lower end of the first annular portion 2111. For example, the upper end of the cylindrical filter portion 22 is provided with an upward-opening first annular groove 2112, and the lower end of the first annular portion 2111 can be rotatably inserted into the first annular groove 2112. Those skilled in the art can select the position of the first annular groove 2112 according to actual needs.

[0047] like Figure 11As shown, in a preferred embodiment of the present invention, the upper end of the cylindrical filter section 22 is provided with a plurality of first protrusions 221 at intervals. The first protrusions 221 are in frictional contact with the top wall of the first annular groove 2112, thereby reducing friction, reducing wear and improving rotational flexibility.

[0048] like Figure 11 As shown, in a preferred embodiment of the present invention, a plurality of first ribs 222 are provided at intervals on the inner wall of the upper end of the cylindrical filter section 22. The first ribs 222 are in frictional contact with the side wall of the first annular groove 2112, thereby reducing friction, reducing wear and improving rotational flexibility.

[0049] In a preferred embodiment of the present invention, the filter 2 further includes a plurality of first balls, which are rotatably disposed at the upper end of the cylindrical filter section 22, and the first balls abut against the top wall of the first annular groove 2112. The first balls revolve along the first annular groove 2112 to reduce friction, reduce wear and improve rotational flexibility.

[0050] like Figure 5 As shown, in a preferred embodiment of this utility model, the lower end of the cylindrical filter section 22 has a downward-facing second annular groove 224, which is rotatably connected to the second annular section 2121; alternatively, the upper end of the second annular section 2121 has an upward-facing second annular groove 224, which is rotatably connected to the lower end of the cylindrical filter section 22. The upper and lower ends of the cylindrical filter section 22 rotate along the first and second annular grooves respectively to prevent the cylindrical filter section 22 from becoming stuck.

[0051] like Figure 5 , 10 As shown, in a preferred embodiment of the present invention, the upper end of the second annular portion 2121 is provided with an annular rib 2122, and the upper end of the annular rib 2122 is provided with a plurality of second protrusions 2123 at intervals. The second annular groove 224 is rotatably inserted into the annular rib 2122, and the second protrusions 2123 are in frictional contact with the top wall of the second annular groove 224, thereby reducing friction and wear and improving the flexibility of rotation.

[0052] In a preferred embodiment of the present invention, the filter 2 further includes a plurality of second balls, which are rotatably disposed at the upper end of the second annular portion 2121 and abut against the top wall of the second annular groove 224, thereby reducing friction, reducing wear and improving rotational flexibility.

[0053] like Figure 8As shown, in a preferred embodiment of this utility model, the lower end of the cylindrical filter section 22 is provided with a plurality of first hollow holes 225. The residue enters the drainage channel through the first hollow holes 225. The lower end of the cylindrical filter section 22 is provided with a mounting part 226. The driven member 41 is provided on the mounting part 226. The free end of the rotating shaft 311 passes through the first drain port 12 and extends into the cavity 11. The driving member 42 is installed on the free end of the rotating shaft 311. The axis of the rotating shaft 311 is horizontal, and the axis of the cylindrical filter section 22 is vertical and perpendicular to the horizontal direction. Both the driven member 41 and the driving member 42 are bevel gears. The driven member 41 and the driving member 42 mesh to achieve a 90-degree transmission connection.

[0054] like Figure 2 , 6 As shown in Figures 9 and 1, in a preferred embodiment of this utility model, the filter 2 further includes a cup 23, which is disposed inside the cylindrical filter section 22. The upper part of the cup 23 is snapped into the upper frame 211. The cup 23 has a plurality of second hollow holes 231, which are used to filter large pieces of residue and prevent large pieces of residue from clogging the mesh of the cylindrical filter section 22 and the drain pipe.

[0055] like Figure 9 As shown, in a preferred embodiment of the present invention, the lower end of the upper frame 211 is provided with at least two first snap-fit ​​portions 2113, and the upper end of the lower frame 212 is provided with a second snap-fit ​​portion 2126 that cooperates with the first snap-fit ​​portions 2113. The first snap-fit ​​portions 2113 and the second snap-fit ​​portions 2126 are snapped together, so as to realize the quick and convenient assembly and disassembly of the upper frame 211 and the lower frame 212.

[0056] For example, the first latching part 2113 is one of the card head and the card hole, and the second latching part 2126 is the other of the card head and the card hole.

[0057] The upper frame 211 and / or the lower frame 212 are elastic or plastic, so that the card head and card hole can undergo a certain deformation when they are engaged or disassembled, so as to facilitate engagement or disassembly.

[0058] like Figure 12 As shown, in a preferred embodiment of this utility model, an annular step 15 is provided on the lower part of the inner wall of the cavity 11. The inner edges of both ends of the annular step 15 extend radially to form a third snap-fit ​​portion 151. The inner edge of the second annular portion 2121 is provided with a fourth snap-fit ​​portion 2125 corresponding to the third snap-fit ​​portion 151. When the filter 2 is installed in place, the lower end face of the second annular portion 2121 abuts against the upper end face of the annular step 15, and the third snap-fit ​​portion 151 snaps into the fourth snap-fit ​​portion 2125, thereby fixing the filter 2.

[0059] For example, the fourth snap-fit ​​portion 2125 is L-shaped, and there is a groove between the fourth snap-fit ​​portion 2125 and the inner edge of the second annular portion 2121. When the filter 2 is installed, the fourth snap-fit ​​portion 2125 is first misaligned with the third snap-fit ​​portion 151. When the lower end face of the second annular portion 2121 abuts against the upper end face of the annular step 15, the filter 2 is then rotated so that the groove is inserted into the third snap-fit ​​portion 15, thereby achieving radial and axial limiting of the filter 2.

[0060] like Figure 6 , 9 As shown, in a preferred embodiment of this utility model, the upper frame 211 is symmetrically provided with two fifth locking parts 2114, and the upper end of the cup 23 is symmetrically provided with two handles 232. The handles 232 are provided with a sixth locking part 2321 that cooperates with the fifth locking parts 2114. When the cup 23 is installed in place, the sixth locking part 2321 engages with the fifth locking part 2114 to fix the cup 23 and prevent the cup 23 from shaking in the radial and axial directions.

[0061] For example, the fifth locking part 2114 is one of the locking head and the locking hole, and the sixth locking part 2321 is the other of the locking head and the locking hole. When disassembling the cup 23, the thumb and forefinger jointly grip the two handles 232, causing the two handles 232 to retract radially, so that the sixth locking part 2321 separates from the fifth locking part 2114.

[0062] like Figure 9 As shown, in a preferred embodiment of this utility model, two symmetrical clearance grooves 2115 are provided on the upper end of the upper frame 211, and a circular part 2322 extends from the outer side of the upper end of the handle 232. When the sixth locking part 2321 and the fifth locking part 2114 are engaged, the circular part 2322 is inserted into the clearance groove 2115, so that the upper frame 211 and the cup 23 are integrated in appearance, improving the aesthetics. At the same time, the clearance groove 2115 also has the function of supporting the cup 23.

[0063] In this embodiment of the invention, the term "multiple" refers to two or more, unless otherwise explicitly defined. The terms "install," "connect," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention based on the specific circumstances.

[0064] In the description of the embodiments of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0065] In this specification, the terms "an embodiment," "a preferred embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0066] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dishwasher, characterized in that, include: A water cup (1) has an upward-facing cavity (11). A first drain outlet (12) communicating with the cavity (11) is provided at the bottom of the side wall of the water cup (1). An annular seat (13) is provided on the outer side wall of the water cup (1) corresponding to the first drain outlet (12). A second drain outlet (131) is provided on one side of the annular seat (13). A filter (2) is disposed in the cavity (11). The filter (2) includes a main frame (21) and a cylindrical filter part (22). The main frame (21) includes an upper frame (211) and a lower frame (212). The upper frame (211) is snapped into the lower frame (212), and the lower frame (212) is snapped into the inner wall of the cavity (11). The two axial ends of the cylindrical filter part (22) are rotatably connected to the upper frame (211) and the lower frame (212), respectively. A drain pump (3) includes a drive unit (31) and an impeller (32) mounted on a rotating shaft (311) of the drive unit (31). The drive unit (31) is mounted on an annular seat (13), and the drive unit (31), the annular seat (13), and the sidewall of the water cup (1) together form an impeller cavity (132) communicating with the cavity (11). The impeller (32) is located inside the impeller cavity (132). The sidewall of the water cup (1) has at least one flushing hole (14) communicating with the impeller cavity (132) and the cavity (11), and the flushing hole (14) is opposite to the side of the cylindrical filter (22). The transmission assembly (4) includes a driven member (41) and a driving member (42). The driven member (41) is installed at the bottom of the cylindrical filter section (22), and the driving member (42) is installed on the rotating shaft (311). The driving member (42) is connected to the driven member (41) in a transmission manner.

2. The dishwasher according to claim 1, characterized in that, The upper frame (211) has a first annular portion (2111) on its inner edge, and the lower frame (212) has a second annular portion (2121) on its inner edge. The two ends of the cylindrical filter portion (22) are rotatably connected to the first annular portion (2111) and the second annular portion (2121) respectively.

3. The dishwasher according to claim 2, characterized in that, The lower end of the first annular portion (2111) is provided with a downward-opening first annular groove (2112), and the upper end of the cylindrical filter portion (22) is inserted into the first annular groove (2112). Alternatively, the upper end of the cylindrical filter portion (22) is provided with an upward-opening first annular groove (2112), and the lower end of the first annular portion (2111) is rotatably inserted into the first annular groove (2112).

4. The dishwasher according to claim 3, characterized in that, The upper end of the cylindrical filter section (22) is provided with a plurality of first protrusions (221) spaced apart, and the first protrusions (221) are in frictional contact with the top wall of the first annular groove (2112); and / or the inner wall of the upper end of the cylindrical filter section (22) is provided with a plurality of first ribs (222) spaced apart, and the first ribs (222) are in frictional contact with the side wall of the first annular groove (2112); or, the filter (2) further includes a plurality of first balls, the first balls being rotatably disposed on the upper end of the cylindrical filter section (22), and the first balls abutting against the top wall of the first annular groove (2112).

5. The dishwasher according to claim 3, characterized in that, The lower end of the cylindrical filter section (22) is provided with a second annular groove (224) with the opening facing downward, and the second annular groove (224) is rotatably inserted into the second annular part (2121); or, the upper end of the second annular part (2121) is provided with a second annular groove (224) with the opening facing upward, and the second annular groove (224) is rotatably inserted into the lower end of the cylindrical filter section (22).

6. The dishwasher according to claim 5, characterized in that, The upper end of the second annular portion (2121) is provided with an annular rib (2122), and the upper end of the annular rib (2122) is provided with a plurality of second protrusions (2123) at intervals. The second annular groove (224) is rotatably inserted into the annular rib (2122), and the second protrusions (2123) are in frictional contact with the top wall of the second annular groove (224); or, the filter (2) further includes a plurality of second balls, the second balls being rotatably disposed on the upper end of the second annular portion (2121), and the second balls abutting against the top wall of the second annular groove (224).

7. The dishwasher according to claim 1, characterized in that, The lower end of the cylindrical filter section (22) is provided with a plurality of first hollow holes (225). The lower center of the cylindrical filter section (22) is provided with a mounting part (226). The driven member (41) is provided on the mounting part (226). The free end of the rotating shaft (311) passes through the first drain port (12) and extends into the cavity (11). The driving member (42) is installed on the free end of the rotating shaft (311). Both the driven member (41) and the driving member (42) are bevel gears.

8. The dishwasher according to claim 2, characterized in that, The lower part of the inner wall of the cavity (11) is provided with an annular step (15). The inner edges of the two ends of the annular step (15) extend radially with a third snap-fit ​​part (151). The inner edge of the second annular part (2121) is provided with a fourth snap-fit ​​part (2125) corresponding to the third snap-fit ​​part (151). When the filter (2) is installed in place, the lower end face of the second annular part (2121) abuts against the upper end face of the annular step (15), and the third snap-fit ​​part (151) snaps into the fourth snap-fit ​​part (2125).

9. The dishwasher according to any one of claims 1-8, characterized in that, The filter (2) also includes a cup (23), which is disposed inside the cylindrical filter section (22). The upper part of the cup (23) is engaged with the upper frame (211), and the cup (23) has multiple second hollow holes (231).

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