Dishwasher and dishwasher spray waterway system

Abstract

Disclosed in the present application are a dishwasher and a dishwasher spray waterway system. The dishwasher comprises a water cup, a cylindrical filter screen, a spray arm and a driving part, wherein the cylindrical filter screen is rotatably arranged in the water cup; the spray arm comprises a spray arm body and a rotating shaft which are connected to each other, the rotating shaft being circumferentially rotatably connected to the water cup; the cylindrical filter screen is sleeved outside of the rotating shaft and is fixed to the rotating shaft; and the driving part is drivingly connected to the rotating shaft so as to drive the rotating shaft to circumferentially rotate.

Description

Dishwasher and dishwasher spray water system

[0001] Related applications

[0002] This application claims priority to Chinese patent applications filed on September 5, 2023, with application numbers 202311143413.0, 202322415684.9, 202322414159.5, 202322414193.2, 202311144218.X and 202311143429.1, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of household appliances, and in particular to a dishwasher and a dishwasher spray water system. Background Art

[0004] As people's living standards improve, dishwashers are becoming increasingly popular. Dishwashers feature a recirculating wash mode, which recycles water from a water cup through a wash pump to meet user energy and water consumption requirements for home appliances. A cylindrical filter is also installed within the water cup to filter out food residue, preventing it from being sucked into the wash pump. However, with existing dishwashers, food residue easily adheres to the mesh of the cylindrical filter, requiring frequent removal for cleaning, significantly impacting the user experience.

[0005] Summary of the Invention

[0006] The main purpose of this application is to propose a dishwasher, which is designed to drive the cylindrical filter to rotate so as to improve the self-cleaning effect of the cylindrical filter, thereby reducing the frequency of disassembling the cylindrical filter for cleaning.

[0007] To achieve the above-mentioned purpose, the present application proposes a dishwasher, which includes: a water cup, a spray arm, a cylindrical filter and a driving member.

[0008] In one embodiment, the spray arm includes a spray arm body and a rotating shaft connected to each other, and the rotating shaft is rotatably connected to the water cup.

[0009] In one embodiment, the cylindrical filter is rotatably disposed in the water cup, and the cylindrical filter is sleeved outside the rotating shaft and fixed to the rotating shaft.

[0010] In one embodiment, the driving member is drivingly connected to the rotating shaft to drive the rotating shaft to rotate circumferentially.

[0011] In one embodiment, a first connecting sleeve is fixedly provided in the cylindrical filter screen, the rotating shaft passes through and is fixedly connected to the first connecting sleeve, and a limiting latch is provided on the outer periphery of the rotating shaft.

[0012] In one embodiment, the first connecting sleeve is correspondingly provided with a limiting bayonet, and the limiting protrusion is engaged with the limiting bayonet.

[0013] In one embodiment, the outer wall of the rotating shaft is interference-fitted with the inner wall of the first connecting sleeve.

[0014] In one embodiment, the rotating shaft includes a first connecting section and a second connecting section, the outer circumference of the first connecting section is more protruding outward than the outer circumference of the second connecting section, the outer wall of the first connecting section is interference fit with the inner wall of the first connecting sleeve, and the second connecting section is rotatably connected to the water cup.

[0015] In one embodiment, a second connecting sleeve is provided on the top of the cylindrical filter screen protruding upward.

[0016] In one embodiment, a fixing portion connected to the spray arm body is provided on each of opposite sides of the rotating shaft, and the fixing portion is spaced apart from the rotating shaft.

[0017] In one embodiment, the second connecting sleeve is sleeved on the rotating shaft between the fixing portion and the rotating shaft.

[0018] In one embodiment, a first position-limiting protrusion is provided on one side of the fixing portion close to the rotating shaft, and a second position-limiting protrusion is correspondingly provided on the outer side of the second connecting sleeve.

[0019] In one embodiment, the first limiting protrusion is limitedly engaged with a side of the second limiting protrusion away from the spray arm body.

[0020] In one embodiment, the dishwasher further includes a first magnetic member and a second magnetic member arranged opposite to each other, wherein the first magnetic member is fixed to the rotating shaft, the second magnetic member and the first magnetic member have opposite magnetic poles opposite to each other, and the second magnetic member can rotate relative to the water cup.

[0021] In one embodiment, the driving member is drivingly connected to the second magnetic member to drive the second magnetic member to rotate, thereby driving the rotating shaft to rotate.

[0022] In one embodiment, the first magnetic member is fixedly mounted on the cylindrical filter.

[0023] In one embodiment, a mounting portion is provided at the bottom of the cylindrical filter, the rotating shaft passes through the mounting portion, and the first magnetic member is fixedly mounted on the mounting portion.

[0024] In one embodiment, both the inner and outer peripheries of the mounting portion are provided with limiting ring protrusions protruding toward the spray arm body, so as to form a receiving groove for receiving and installing the first magnetic member between the two limiting ring protrusions.

[0025] In one embodiment, the dishwasher further includes a rotating wheel rotatably connected to the water cup, and the second magnetic member is disposed on the rotating wheel.

[0026] In one embodiment, the driving member is drivingly connected to the rotating wheel to drive the rotating wheel to rotate around the axis of the rotating shaft.

[0027] In one embodiment, the driving member is configured as a motor, the motor is provided with a driving gear, the outer periphery of the rotating wheel is provided with a transmission tooth groove, and the driving gear is engaged with the transmission tooth groove.

[0028] In one embodiment, a water inlet joint is provided at the bottom of the water cup, a washing chamber is provided above the water cup, and the rotating shaft is movably inserted into the water inlet joint.

[0029] In one embodiment, the spray arm body is accommodated in the washing chamber and is connected to the water inlet joint via the rotating shaft.

[0030] In one embodiment, the water inlet connector includes a main body and a connecting portion, and the main body is connected to the bottom of the water cup through the connecting portion.

[0031] In one embodiment, the inner diameter of the connecting portion is larger than the inner diameter of the main body portion.

[0032] In one embodiment, a sealing member is fixedly provided in the connecting portion, and the rotating shaft is movably provided through the sealing member.

[0033] To achieve the above objectives, the present application also proposes a dishwasher, comprising: a water cup, a cylindrical filter, a first magnetic member, a second magnetic member, and a driving member.

[0034] In one embodiment, the cylindrical filter is rotatably disposed in the water cup.

[0035] In one embodiment, the first magnetic member is fixed to the cylindrical filter screen, and the second magnetic member is disposed opposite to the first magnetic member.

[0036] In one embodiment, the second magnetic member and the first magnetic member have opposite magnetic poles, and the second magnetic member is rotatable relative to the water cup.

[0037] In one embodiment, the driving member is drivingly connected to the second magnetic member to drive the second magnetic member to rotate, thereby driving the cylindrical filter to rotate.

[0038] In one embodiment, a mounting portion is provided at the bottom of the cylindrical filter, and the first magnetic member is fixedly mounted on the mounting portion.

[0039] In one embodiment, both the inner and outer peripheries of the mounting portion are provided with upwardly protruding limiting ring protrusions, so as to form a receiving groove for receiving and installing the first magnetic component between the two limiting ring protrusions.

[0040] In one embodiment, the dishwasher further comprises a spray arm, wherein the spray arm comprises a spray arm body and a rotating shaft connected to each other.

[0041] In one embodiment, the rotating shaft and the cylindrical filter are coaxially arranged, and at least one of the rotating shaft and the spray arm body is fixedly connected to the cylindrical filter.

[0042] In one embodiment, the driving member is used to drive the cylindrical filter to rotate circumferentially.

[0043] In one embodiment, a water inlet connector is provided at the bottom of the water cup, and a washing chamber is provided above the water cup.

[0044] In one embodiment, the rotating shaft passes through the cylindrical filter and is movably inserted into the water inlet joint.

[0045] In one embodiment, the spray arm body is accommodated in the washing chamber and is connected to the water inlet joint via the rotating shaft.

[0046] In one embodiment, a first connecting sleeve is fixedly provided in the cylindrical filter screen, the rotating shaft passes through and is fixedly connected to the first connecting sleeve, and the outer wall of the rotating shaft is interference-fitted with the inner wall of the first connecting sleeve.

[0047] In one embodiment, the rotating shaft is externally convexly provided with a limiting latch, and the first connecting sleeve is correspondingly provided with a limiting bayonet, and the limiting latch is engaged with the limiting bayonet.

[0048] In one embodiment, a second connecting sleeve is provided on the top of the cylindrical filter screen protruding upward.

[0049] In one embodiment, a fixing portion connected to the spray arm body is respectively provided on two opposite sides of the rotating shaft.

[0050] In one embodiment, the fixing portion and the rotating shaft are spaced apart, and the second connecting sleeve is sleeved on the rotating shaft between the fixing portion and the rotating shaft.

[0051] In one embodiment, a first position-limiting protrusion is provided on one side of the fixing portion close to the rotating shaft, and a second position-limiting protrusion is correspondingly provided on the outer side of the second connecting sleeve.

[0052] In one embodiment, the first limiting protrusion is limitedly engaged with a side of the second limiting protrusion away from the spray arm body.

[0053] In one embodiment, the second connecting sleeve is fixedly connected to the cylindrical filter screen by snap-fitting, plugging or snapping.

[0054] In one embodiment, the outer periphery of the end of the second connecting sleeve close to the cylindrical filter screen extends outward to form a mounting ring.

[0055] In one embodiment, a connecting buckle is protruding from the outer periphery of the mounting ring, and a connecting bayonet is correspondingly provided on the cylindrical filter screen, and the connecting buckle is buckled with the connecting bayonet.

[0056] In one embodiment, the dishwasher further includes a rotating wheel movably mounted on the water inlet connector, and the second magnetic member is disposed on the rotating wheel.

[0057] In one embodiment, the driving member is drivingly connected to the rotating wheel to drive the rotating wheel to rotate around the axis of the cylindrical filter.

[0058] In one embodiment, the driving member is configured as a motor, and the motor is provided with a driving gear.

[0059] In one embodiment, a transmission tooth groove is provided on the outer periphery of the rotating wheel, and the driving gear is engaged with the transmission tooth groove.

[0060] In one embodiment, the water inlet connector includes a main body and a connecting portion, the main body is connected to the bottom of the water cup through the connecting portion, and the inner diameter of the connecting portion is larger than the inner diameter of the main body.

[0061] In one embodiment, a sealing member is housed and installed in the connecting portion, an outer ring of the sealing member is interference-fitted with the connecting portion, and the rotating shaft is movably provided in the sealing member.

[0062] In one embodiment, the connecting portion is more protruding than the main body, and the rotating wheel is sleeved on the outer side of the connecting portion.

[0063] To achieve the above objectives, the present application also proposes a dishwasher spray water system, which is applied to the above dishwasher. The washing spray water system includes: an inner tank, a water cup, a cup lifting filter assembly and a lower spray arm.

[0064] In one embodiment, the inner container is provided with a washing chamber, and the cup filter assembly is rotatably installed in the water cup.

[0065] In one embodiment, the lower spray arm includes a spray arm body and a water pipe. The spray arm body is located in the washing chamber. One end of the water pipe is connected to and communicates with the spray arm body, and the other end passes through the cup filter assembly and is rigidly connected to the cup filter assembly.

[0066] In one embodiment, the water delivery pipe is used to connect to a water supply pipeline to supply water to the lower spray arm.

[0067] In one embodiment, the cup-lifting filter assembly is centrally disposed in the water cup, and the water delivery pipe passes through the cup-lifting filter assembly centrally.

[0068] In one embodiment, a connecting pipe is provided at the bottom of the water cup, and the connecting pipe has a first port communicating with the water cup and a second port communicating with the water supply pipeline.

[0069] In one embodiment, one end of the water supply pipe away from the spray arm body is connected to the connecting pipe via the first port.

[0070] In one embodiment, a sealing member is provided at the first port, and the sealing member is used to seal and connect the matching parts of the water cup, the water pipe and the connecting pipe.

[0071] In one embodiment, the dishwasher spray water system further includes a driving mechanism, and the driving mechanism is used to drive one of the lower spray arm and the cup lifting filter assembly to rotate, thereby driving the other to rotate together.

[0072] In one embodiment, the driving mechanism includes a driving motor, a transmission member, a first magnetic member, and a second magnetic member. The driving motor is drivingly connected to the transmission member to drive the transmission member to rotate.

[0073] In one embodiment, the transmission member is located outside the water cup, the first magnetic member is provided on the transmission member, and the second magnetic member is provided on the cup lifting filter assembly.

[0074] In one embodiment, the first magnetic member and the second magnetic member have opposite magnetic poles at their opposing locations.

[0075] In one embodiment, the transmission member is rotatably sleeved on the periphery of the connecting tube, and the transmission member is opposite to and spaced from the bottom of the water cup.

[0076] In one embodiment, the first magnetic member is disposed on the top of the transmission member, and the second magnetic member is disposed on the bottom of the cup lifting filter assembly.

[0077] In one embodiment, the transmission member is a transmission gear, and the output end of the drive motor is provided with a drive gear meshing with the transmission gear.

[0078] In one embodiment, the water cup is provided with a water inlet and a water outlet.

[0079] In one embodiment, the water supply pipeline includes a washing pump, a water diversion valve and a first water distribution pipe, and the water diversion valve is provided with a water inlet and a first water diversion port.

[0080] In one embodiment, the water inlet of the washing pump is connected to the water outlet through a first water pipe, and the water outlet of the washing pump is connected to the water inlet through a second water pipe.

[0081] In one embodiment, the first water distribution pipe connects the first water outlet with the water delivery pipe.

[0082] In one embodiment, the dishwasher spray water system further includes a middle spray arm and an upper spray arm, and the upper spray arm, the middle spray arm and the lower spray arm are sequentially arranged in the washing chamber from top to bottom.

[0083] In one embodiment, the water diversion valve is further provided with a second water diversion port and a third water diversion port, the second water diversion port is connected to the middle spray arm through a second water distribution pipe, and the third water diversion port is connected to the upper spray arm through a third water distribution pipe.

[0084] In one embodiment, a branch is provided in the valve cavity of the water diversion valve, and the branch connects the water inlet with the first water diversion port.

[0085] In one embodiment, a switching mechanism is provided in the valve cavity of the water diverter valve, and the switching mechanism is used to switch the water path state of the water diverter valve so that the water diverter valve can arbitrarily select to supply water to at least one of the lower spray arm, the middle spray arm and the upper spray arm.

[0086] In the technical solution of the present application, the first magnetic member and the second magnetic member have opposite magnetic poles relative to each other, and there is a magnetic attraction between the first magnetic member and the second magnetic member, which drives the driving member to operate and drives the second magnetic member to rotate around the axis of the rotating shaft. That is, the magnetic attraction between the first magnetic member and the second magnetic member drives the first magnetic member to rotate around the axis of the rotating shaft. Since the first magnetic member is fixedly connected to the rotating shaft, the rotating shaft will be driven by the first magnetic member to rotate synchronously. The rotating shaft rotates around its axis, and the spray arm as a whole corresponds to the circumferential rotation. In the present application, the rotation speed of the second magnetic member can be controlled by controlling the operation of the driving member, thereby controlling the rotation speed of the spray arm. The user can adjust the rotation speed of the spray arm conveniently and accurately. In addition, the technical solution of the present application is to drive the spray arm to rotate in a non-contact manner through magnetic drive. When the rotating shaft is blocked, the driving member can continue to drive the second magnetic member to rotate without being affected by the rotating shaft, causing the driving member to get stuck or even cause a malfunction. BRIEF DESCRIPTION OF THE DRAWINGS

[0087] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0088] FIG1 is a schematic structural diagram of an embodiment of a dishwasher of the present application;

[0089] FIG2 is a partial enlarged view of point A in FIG1 ;

[0090] FIG3 is a partial enlarged view of point B in FIG1 ;

[0091] FIG4 is a partial enlarged view of point C in FIG1 ;

[0092] FIG5 is a partial enlarged view of point D in FIG1;

[0093] FIG6 is a partial enlarged view of point E in FIG1 ;

[0094] FIG7 is a structural diagram of an embodiment of a dishwasher spray water system of the present application;

[0095] FIG8 is a schematic diagram of the spray water system of the dishwasher in FIG7 in a working state;

[0096] FIG9 is a structural diagram of another embodiment of the dishwasher spray water system of the present application.

[0097] Description of Figure Numbers:

[0098] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0099] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0100] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0101] The terms "connect," "install," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection; it can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0102] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0103] The present application proposes a dishwasher.

[0104] In one embodiment of the present application, as shown in Figure 1, the dishwasher includes a water cup 100, a cylindrical filter 500, a spray arm 200 and a driving member (not shown). The cylindrical filter 500 is rotatably disposed in the water cup 100. The spray arm 200 includes a spray arm body 210 and a rotating shaft 220 that are connected to each other. The rotating shaft 220 is rotatably connected to the water cup 100. The cylindrical filter 500 is sleeved outside the rotating shaft 220 and fixed to the rotating shaft 220. The driving member is drivingly connected to the rotating shaft 220 to drive the rotating shaft 220 to rotate circumferentially.

[0105] In one embodiment, the rotating shaft 220 drives the spray arm body 210 to rotate, and this rotation includes synchronous rotation and asynchronous rotation. Synchronous rotation means that the rotating shaft 220 and the spray arm body 210 rotate at the same frequency. Asynchronous rotation means that the rotating shaft 220 and the spray arm body 210 drive the spray arm body 210 to rotate via a transmission method such as a speed gear, and the two rotate at different frequencies.

[0106] In some embodiments, the cylindrical filter screen 500 is not fixedly connected to the rotating shaft 220. The cylindrical filter screen 500 is driven by the rotating shaft 220 to rotate, and the rotation frequency of the cylindrical filter screen 500 is the same as or different from the rotation frequency of the rotating shaft 220.

[0107] In the technical solution of the present application, driven by the driving member, the cylindrical filter 500 can rotate synchronously with the rotating shaft 220, so that the cylindrical filter 500 can rotate in the water cup 100 to increase the force between the cylindrical filter 500 and the water flow, thereby improving the flushing effect of the water flow on the cylindrical filter 500, that is, improving the self-cleaning effect of the cylindrical filter 500 in the water cup 100. Therefore, the user does not have to frequently remove the cylindrical filter 500 for cleaning, which is conducive to improving the user experience.

[0108] In one embodiment, referring to both Figures 1 and 3 , a first connecting sleeve 530 is fixedly disposed within the cylindrical filter screen 500, and the rotating shaft 220 is passed through and fixedly connected to the first connecting sleeve 530. This allows the rotating shaft 220 to be fixedly connected to the cylindrical filter screen 500 and to rotate driven by the cylindrical filter screen 500. Furthermore, the connection between the rotating shaft 220 and the cylindrical filter screen 500 is highly stable, facilitating smooth rotation of the rotating shaft 220. Of course, in other embodiments, the rotating shaft 220 may be fixedly connected to the mounting portion 511. The rotating shaft 220 and the mounting portion 511 may be bonded using a water-insoluble adhesive, or they may be secured together using a snap-fit ​​or screw fastening.

[0109] Without loss of generality, in this embodiment, the cylindrical filter 500 is provided with an inner skeleton 510 and an outer skeleton 520 connected to each other, and the sides of the inner and outer skeletons 520 are annular structures and are both provided with filter screens, wherein the mesh number of the filter screen provided on the inner skeleton 510 can be smaller than the mesh number of the filter screen provided on the outer skeleton 520, and preliminary filtration is performed by the filter screen provided on the inner skeleton 510, and then final filtration is performed by the filter screen provided on the outer skeleton 520. In this way, it can ensure that food residues can be effectively filtered, and can also prevent food residues from clogging the mesh of the filter screen, thereby affecting the flow of water between the inside and outside of the cylindrical filter 500. The inner skeleton 510 and the outer skeleton 520 can be fixedly connected. When the inner skeleton 510 rotates, the outer skeleton 520 will also be driven, that is, the cylindrical filter 500 as a whole can rotate. As a result, the water flow flushing effect on the filter of the outer skeleton 520 can also be improved, which is beneficial to improving the self-cleaning effect of the filter of the outer skeleton 520; the inner skeleton 510 and the outer skeleton 520 can also be movably connected. It can be understood that most of the food residues are filtered by the filter of the inner skeleton 510 and concentrated on the inner side of the inner skeleton 510. There is less food residue attached to the filter of the outer skeleton 520. Therefore, even if the outer skeleton 520 does not rotate with the filter of the inner skeleton 510, the accumulation of food residue on the filter is relatively small, and there is no need to frequently remove it for cleaning. In addition, in this case, it is only necessary to drive the inner skeleton 510 of the cylindrical filter 500 to rotate, which can reduce the requirements for the magnetic attraction between the second magnetic part 400 and the first magnetic part 300.

[0110] The first connecting sleeve 530 is disposed between the inner frame 510 and fixed to the inner frame 510. Specifically, the ends of the first connecting sleeve 530 are respectively connected to the top and bottom of the inner frame 510. At the bottom of the inner frame 510, the connecting sleeve is connected to the inner ring protrusion 512 of the mounting portion 511. In one embodiment, the first sleeve 530 and the inner frame 510 can be fixed by integrally forming the first connecting sleeve 530 and the inner frame 510, or by abutting the ends of the first connecting sleeve 530 against the top and bottom of the inner frame 510. Alternatively, the ends of the first connecting sleeve 530 can be fixed to the top and bottom of the inner frame 510 by fusion or welding, depending on the materials of the first connecting sleeve 530 and the inner frame 510. A clearance hole is provided at the top of the inner frame 510, corresponding to the first connecting sleeve 530, to avoid the rotation shaft 220 and allow it to pass through.

[0111] In one embodiment, as shown in FIG3 , a limiting latch 223 is provided on the outer periphery of the rotating shaft 220, and a limiting notch 531 is correspondingly provided on the first connecting sleeve 530. The limiting latch 223 engages with the limiting notch 531. In this manner, the rotating shaft 220 is fixedly connected to the first connecting sleeve 530. Specifically, a plurality of limiting latches 223 can be provided at intervals on the outer periphery of the rotating shaft 220, and a plurality of limiting notches 531 can be provided at intervals on the circumference of the first connecting sleeve 530. The plurality of limiting latches 223 engage with the plurality of limiting notches 531 in a one-to-one correspondence. This securement facilitates improved connection stability between the rotating shaft 220 and the first connecting sleeve 530. Furthermore, to ensure structural stability of the first connecting sleeve 530, the number of limiting notches 531 should not be excessive; preferably, the number of limiting notches 531 and the number of limiting latches 223 is set to two to three, respectively. Furthermore, the limiting snap-in 531 may be provided at one end where the first sleeve is connected to the top of the inner frame 510 , so as to facilitate the alignment of the limiting snap-in protrusion 223 and the limiting snap-in 531 .

[0112] In one embodiment, the outer wall of the rotating shaft 220 is interference-fitted with the inner wall of the first connecting sleeve 530. This prevents relative rotation between the first connecting sleeve 530 and the rotating shaft 220, further enhancing the stability of the connection between the rotating shaft 220 and the first connecting sleeve 530. This ensures that the rotating shaft 220 can be driven to rotate synchronously with the inner frame 510 of the cylindrical filter 500, thereby ensuring that the user can accurately adjust the rotation speed of the spray arm 200.

[0113] Referring to Figures 1 and 6 , in one embodiment, the rotating shaft 220 includes a first connecting section 221 and a second connecting section 222. The outer circumference of the first connecting section 221 is projecting outward relative to the outer circumference of the second connecting section 222. The outer wall of the first connecting section 221 is interference-fitted with the inner wall of the first connecting sleeve 530, and the second connecting section 222 is movably inserted into the water inlet connector 110. In this embodiment, the rotating shaft 220 is interference-fitted with the first connecting sleeve 530 via the first connecting section 221 (with a larger outer diameter), and is movably inserted into the water inlet connector 110 via the second connecting section 222 (with a smaller outer diameter), thereby simultaneously ensuring a fixed connection between the rotating shaft 220 and the first connecting sleeve 530 and a movable connection between the rotating shaft 220 and the water cup 100. Of course, in other embodiments, the position of the rotating shaft 220 for cooperating with the first connecting sleeve 530 and the position for cooperating with the water inlet connector 110 may be set to the same outer diameter, and the inner diameters of the first connecting sleeve 530 and the water inlet connector 110 may be adaptively adjusted according to the outer diameter of the rotating shaft 220.

[0114] Referring to Figures 1 and 4 , in one embodiment, a second connecting sleeve 540 protrudes upward from the top of the cylindrical filter 500. A fixing portion 230 connected to the spray arm body 210 is provided on opposite sides of the rotating shaft 220. The fixing portion 230 is spaced apart from the rotating shaft 220, and the second connecting sleeve 540 is sleeved onto the rotating shaft 220 between the fixing portion 230 and the rotating shaft 220. Specifically, the fixing portion 230 is provided on the side of the spray arm body 210 where it connects to the rotating shaft 220, and protrudes from the spray arm body 210 toward the cylindrical filter 500. Thus, a space is formed between the rotating shaft 220 and the fixing portion 230 for the second connecting sleeve 540 to be inserted into. Inserting the second connecting sleeve 540 into the space improves the stability of the connection between the cylindrical filter 500 and the spray arm 200. Of course, in other embodiments, the spray arm body 210 may be provided with more than three fixed portions 230 that are spaced apart from the rotating shaft 220, and the plurality of fixed portions 230 may be spaced apart in the circumferential direction of the rotating shaft 220; or the spray arm body 210 may be provided with a third connecting sleeve that is arranged around the rotating shaft 220, so that a space for inserting the second connecting sleeve 540 may be formed between the third connecting sleeve and the rotating shaft 220.

[0115] In one embodiment, as shown in FIG4 , a first position-limiting protrusion 231 is provided on a side of the fixing portion 230 near the rotating shaft 220, and a second position-limiting protrusion 541 is provided on the outer side of the second connecting sleeve 540. The first position-limiting protrusion 231 is engaged with a side of the second position-limiting protrusion 541 away from the spray arm body 210. With the first position-limiting protrusion 231 restraining the second position-limiting protrusion 541, the second connecting sleeve 540 cannot escape between the fixing portion 230 and the rotating shaft 220, but remains stably inserted therein, thereby improving the connection stability between the spray arm 200 and the cylindrical filter 500. In addition, when the second connecting sleeve 540 is inserted between the fixing portion 230 and the rotating shaft 220, the second limiting protrusion 541 of the second connecting sleeve 540 pushes the first limiting protrusion 231 of the fixing portion 230, so that the fixing portion 230 can be appropriately deformed, and the fixing portion 230 expands outward in the direction away from the rotating shaft 220, and the second connecting sleeve 540 can be smoothly inserted. The operation when pulling out the second connecting sleeve 540 is the same. Specifically, the end of the fixing portion 230 away from the spray arm body 210 is bent toward the rotating shaft 220 to form a first limiting protrusion 231, and a guide surface is formed on the opposite sides of the first limiting protrusion 231 close to or away from the spray arm body 210, which is used to improve the smoothness of the plugging and unplugging of the second connecting sleeve 540. The second connecting sleeve 540 can also be correspondingly provided with a third limiting ring protrusion 512 on each of the opposite sides, or only one annular third limiting ring protrusion 512 can be provided, both of which can cooperate with the second limiting ring protrusion 512.

[0116] In one embodiment, the second connecting sleeve 540 is fixedly connected to the cylindrical filter 500 by snap-fitting, plugging, or snapping. In this way, the second connecting sleeve 540 can be stably fixedly connected to the cylindrical filter 500. The second connecting sleeve 540 can be fixedly connected to the inner frame 510 or the outer frame 520 of the cylindrical filter 500. Without loss of generality, in this embodiment, the second connecting sleeve 540 is fixedly connected to the outer frame 520 of the cylindrical filter 500. The cooperation between the second connecting sleeve 540 and the fixing portion 230 does not restrict its rotation relative to the rotation axis 220, and can facilitate the movable connection between the outer frame 520 and the inner frame 510 of the cylindrical filter 500. Of course, in other embodiments, the second connecting sleeve 540 and the outer frame 520 of the cylindrical filter 500 can also be integrally formed.

[0117] Referring to Figures 1 and 5 , in one embodiment, the outer periphery of the second connecting sleeve 540, which is adjacent to the cylindrical filter 500, extends outward to form a mounting ring 550. A connecting buckle 551 is protruding from the outer periphery of the mounting ring 550. The cylindrical filter 500 is correspondingly provided with a connecting bayonet 521, and the connecting buckle 551 engages with the connecting bayonet 521. Specifically, the outer frame 520 of the cylindrical filter 500, which is adjacent to the spray arm body 210, is open. The connecting bayonet 521 is provided on the outer periphery of the outer frame 520. The mounting ring 550 covers the opening of the outer frame 520 and engages with the connecting bayonet 521 of the outer frame 520 to secure the outer frame 520 and the mounting ring 550. This secures the second connecting sleeve 540 to the outer frame 520 of the cylindrical filter 500.

[0118] In one embodiment, the dishwasher further includes a first magnetic member 300 and a second magnetic member 400 disposed in opposition to each other. The first magnetic member 300 is fixed to the rotating shaft 220, and the second magnetic member 400 and the first magnetic member 300 have opposite magnetic poles. The second magnetic member 400 can rotate relative to the water cup 100. The driving member is drivingly connected to the second magnetic member 400 to drive the second magnetic member 400 to rotate, thereby driving the rotating shaft 220. In this way, the driving member can drive the cylindrical filter 500 to rotate through a non-contact magnetic drive. If the cylindrical filter 500 becomes blocked, the driving member can continue to drive the second magnetic member 400 to rotate without being affected by the cylindrical filter 500, causing the driving member to jam or even malfunction. Of course, in other embodiments, the driving member can also be configured as a motor, with the output shaft of the motor coaxially fixed to the rotating shaft or connected to the rotating shaft via a gear transmission.

[0119] In one embodiment, the first magnetic member 300 is fixedly mounted on the cylindrical filter 500. The first magnetic member 300 and the rotating shaft 220 are respectively fixedly connected to the cylindrical filter 500, so that the first magnetic member 300 is indirectly fixedly connected to the rotating shaft 220. In this way, when the first magnetic member 300 is driven by the second magnetic member 400 to rotate around the axis of the rotating shaft 220, it drives the cylindrical filter 500 to rotate around the axis of the rotating shaft 220, thereby driving the rotating shaft 220 to rotate around its axis. Among them, the cylindrical filter 500 can provide a relatively large installation space for both the first magnetic member 300 and the rotating shaft 220, which can facilitate the assembly of the first magnetic member 300 and the rotating shaft 220, and is conducive to ensuring the connection stability between the first magnetic member 300 and the rotating shaft 220. Of course, in other embodiments, the first magnetic member 300 may be fixedly sleeved on the outside of the rotating shaft 220 , or the first magnetic member 300 may be embedded in the outer peripheral wall of the rotating shaft 220 , so that the first magnetic member 300 is directly fixedly connected to the rotating shaft 220 .

[0120] In one embodiment, a mounting portion 511 is provided at the bottom of the cylindrical filter 500. The rotating shaft 220 passes through the mounting portion 511, and the first magnetic member 300 is fixedly mounted to the mounting portion 511. Thus, the cylindrical filter 500 is disposed around the rotating shaft 220, the mounting portion 511 is sleeved around the outer circumference of the rotating shaft 220, and the first magnetic member 300 is mounted on the mounting portion 511. This allows the first magnetic member 300 and the rotating shaft 220 to be closer together, facilitating the transmission of motion from the cylindrical filter 500 to the rotating shaft 220. Without loss of generality, the cylindrical filter 500 and the rotating shaft 220 are coaxially disposed so that both can rotate about their respective axes, thereby improving the rotational stability of the cylindrical filter 500 and the rotating shaft 220. Specifically, the mounting portion 511 is disposed at the bottom of the inner frame 510 as part of the inner frame 510. It is understood that food residue will remain on both the inside and outside of the inner frame 510, and that most of the food residue is concentrated on the inside of the inner frame 510, making the filter screen of the inner frame 510 more susceptible to food residue adhesion. Therefore, when the first magnetic member 300 is driven to rotate, the mounting portion 511 can also drive the inner frame 510 to rotate as a whole, thereby enhancing the water flow's effect of flushing food residue attached to the filter screen of the inner frame 510, thereby enhancing the self-cleaning effect of the filter screen of the inner frame 510. Of course, in other embodiments, the rotating shaft 220 can be fixedly connected to the side of the cylindrical filter screen 500, the first magnetic member 300 can be fixedly mounted to the bottom or middle portion of the side frame of the cylindrical filter screen 500, and the second magnetic member 400 can be mounted to the bottom or side wall of the water cup 100.

[0121] Please refer to Figures 1 and 2 together. In one embodiment, the inner and outer peripheries of the mounting portion 511 are both provided with limiting ring protrusions 512 protruding toward the spray arm body 210, so as to form a receiving groove 513 for receiving and installing the first magnetic member 300 between the two limiting ring protrusions 512. The provision of the receiving groove 513 is conducive to the positioning and installation of the first magnetic member 300, and the first magnetic member 300 is installed in the receiving groove 513, that is, installed on the inner side of the cylindrical filter 500, which is conducive to improving the installation stability of the first magnetic member 300. Among them, the receiving groove 513 is annular in structure, and the first magnetic member 300 can be correspondingly provided as an annular structure, or a plurality of first magnetic members 300 can be accommodated and installed in the receiving groove 513, and the plurality of first magnetic members 300 are distributed along the circumference of the receiving groove 513. The first magnetic member 300 can be fixed to the mounting portion 511 by being secured to the mounting portion 511 by the retaining ring protrusions 512 on both sides; or by being adhesively secured to the mounting portion 511; or by being secured to the mounting portion 511 by a retaining rib provided on the mounting portion 511. Of course, in other embodiments, the first magnetic member 300 can also be mounted on the outside of the mounting portion 511.

[0122] In one embodiment, as shown in FIG1 , the dishwasher further comprises a rotating wheel 600 rotatably connected to the water cup 100. The second magnetic member 400 is disposed on the rotating wheel 600. The driving member is drivingly connected to the rotating wheel 600 to drive the rotating wheel 600 to rotate about the axis of the rotating shaft 220. It will be appreciated that the second magnetic member 400 is not convenient for direct connection to the driving member. In this embodiment, the driving member is directly drivingly connected to the rotating wheel 600. Under the drive of the driving member, the rotating wheel 600 can rotate about the axis of the rotating shaft 220, and the second magnetic member 400 disposed thereon can also rotate about the axis of the rotating shaft 220. This can in turn transmit power to the rotating shaft 220 via the first magnetic member 300 and the cylindrical filter 500. Of course, in other embodiments, the second magnetic member 400 can also be provided with a fixed shaft to facilitate direct driving connection by the driving member.

[0123] In one embodiment, the driving member is configured as a motor, the motor is provided with a driving gear, and the outer periphery of the rotating wheel 600 is provided with a transmission tooth groove, and the driving gear is engaged with the transmission tooth groove. In this embodiment, the rotating wheel 600 is coaxially arranged with the rotating shaft 220. After the motor is operated, the driving gear rotates circumferentially, and the driving gear is engaged with the transmission tooth groove, thereby driving the rotating wheel 600 to rotate circumferentially, thereby driving the second magnetic member 400 to rotate around the axis of the rotating shaft 220. Of course, in other embodiments, the driving member can also be configured as a rotary reducer, the rotary disk of the rotary reducer is fixedly sleeved on the outer periphery of the rotating wheel 600, and the rotating wheel 600 is coaxially arranged with the rotating shaft 220, or the rotating wheel 600 is provided with a fixed shaft coaxial with the rotating shaft 220, and the rotary disk is fixedly sleeved on the outer periphery of the fixed shaft. In this way, when the rotary reducer is operated, the rotary disk rotates circumferentially, and the second magnetic member 400 can be driven to rotate around the axis of the rotating shaft 220.

[0124] In one embodiment, as shown in Figure 1, the second magnetic member 400 is installed on the side of the rotating wheel 600 close to the second magnetic member 400, which can reduce the distance between the first magnetic member 300 and the second magnetic member 400 to increase the magnetic attraction between the two, thereby facilitating the rotation of the first magnetic member 300 through the rotation of the second magnetic member 400. Specifically, an annular groove for accommodating and installing the second magnetic member 400 is provided on one side of the rotating wheel 600 close to the first magnetic member 300. In this way, the first magnetic member 300 and the second magnetic member 400 can be correspondingly arranged in an annular shape; or multiple first magnetic members 300 and the second magnetic member 400 can be correspondingly arranged one by one, and the multiple second magnetic members 400 are distributed circumferentially in the annular groove of the rotating wheel 600, and the multiple first magnetic members 300 are distributed circumferentially in the receiving groove 513. At this time, the two adjacent second magnetic members 400 can also be set with opposite magnetic poles, and the multiple first magnetic members 300 installed in the receiving groove 513 are also set accordingly. In this way, the installation stability of the first magnetic member 300 and the second magnetic member 400, as well as the driving force of the first magnetic member 300 on the second magnetic member 400 can be improved.

[0125] As shown in FIG1 , in one embodiment, a water inlet connector 110 is provided at the bottom of the water cup 100, a washing chamber is provided above the water cup 100, the rotating shaft 220 is movably inserted into the water inlet connector 110, the spray arm body 210 is accommodated in the washing chamber (not shown) and is connected to the water inlet connector 110 via the rotating shaft 220, and the rotor 600 is rotatably mounted on the outside of the water inlet connector 110. It is understood that the water inlet connector 110 is also connected to a washing pump, and the spray arm body 210 is provided with a plurality of water spray holes. The washing pump supplies water to the spray arm 200 through the water inlet connector 110. The water in the water inlet connector 110 will pass through the rotating shaft to reach the spray arm body 210, and finally be sprayed into the washing chamber through the water spray holes of the spray arm body 210 to clean the dishes placed in the washing chamber. In this embodiment, the rotating shaft 220 can both transmit motion to the spray arm body 210 and deliver water to the spray arm body 210. The reuse of the rotating shaft 220 helps simplify the structure of the dishwasher. Of course, in other embodiments, the rotating shaft 220 can also be provided through the bottom of the water cup 100 and directly connected to the water inlet pipe of the washing pump. Alternatively, the rotating shaft 220 can be provided as a solid structure and rotatably connected to other positions of the water cup 100. The spray arm 200 also includes a water inlet portion connected to the spray arm body 210, which is connected to the water inlet connector 110 through the water inlet portion.

[0126] In one embodiment, as shown in FIG6 , the water inlet connector 110 includes a main body 111 and a connecting portion 112. The main body 111 is connected to the bottom of the water cup 100 via the connecting portion 112. The inner diameter of the connecting portion 112 is larger than that of the main body 111. A sealing member 700 is fixedly disposed within the connecting portion 112, and the rotating shaft 220 is movably disposed through the sealing member 700. It will be appreciated that the sealing member 700 is an annular structure that is sleeved over the rotating shaft 220 to seal the connection between the rotating shaft 220 and the water inlet connector 110 to prevent water leakage. The inner diameter of the connecting portion 112 is larger than that of the main body 111, creating a space within the connecting portion 112 for the sealing member 700 to be installed. This minimizes the gap between the main body 111 and the connecting shaft, thereby reducing water flow between the main body 111 and the connecting shaft and preventing the sealing member 700 from being subjected to excessive impact and failing. Without loss of generality, the outer ring of the seal 700 abuts against the inner circumferential wall of the connecting portion 112, and the inner ring abuts against the outer circumferential wall of the rotating shaft 220, which can improve the sealing between the rotating shaft 220 and the connecting portion 112 without excessively affecting the circumferential rotation of the rotating shaft 220.

[0127] In one embodiment, as shown in FIG6 , the connecting portion 112 is more protruding than the main body 111, and the rotating wheel 600 is sleeved on the outside of the connecting portion 112. The connecting portion 112 is more protruding than the main body 111, and the outer diameter of the connecting portion 112 is also larger than the outer diameter of the main body 111. In this way, the wall thickness of the connecting portion 112 is not too small, which is beneficial to ensuring the structural stability of the water inlet connector 110. The rotating wheel 600 is sleeved on the connecting portion 112, which can reduce the distance between the first magnetic member 300 and the second magnetic member 400, thereby increasing the magnetic attraction between the first magnetic member 300 and the second magnetic member 400, which is beneficial to driving the rotating shaft 220 to rotate.

[0128] In one embodiment of the present application, as shown in Figure 1, the dishwasher includes a water cup 100, a cylindrical filter 500, a first magnetic member 300, a second magnetic member 400 and a driving member. The cylindrical filter 500 is rotatably disposed in the water cup 100, the first magnetic member 300 is fixed to the cylindrical filter 500, the second magnetic member 400 is disposed relative to the first magnetic member 300, the second magnetic member 400 and the first magnetic member 300 have opposite magnetic poles facing each other, and the second magnetic member 400 is rotatable relative to the water cup 100, and the driving member is drivingly connected to the second magnetic member 400 to drive the second magnetic member 400 to rotate, thereby driving the cylindrical filter 500 to rotate.

[0129] In the technical solution of the present application, the first magnetic member 300 and the second magnetic member 400 have opposite magnetic poles facing each other. A magnetic attraction exists between the first magnetic member 300 and the second magnetic member 400, driving the driving member to operate and drive the second magnetic member 400 to rotate. The magnetic attraction between the first magnetic member 300 and the second magnetic member 400 drives the first magnetic member 300 to rotate synchronously. Since the first magnetic member 300 is fixedly mounted on the cylindrical filter 500, the cylindrical filter 500 is driven to rotate by the first magnetic member 300. It can be understood that the rotation of the cylindrical filter 500 within the water cup 100 can increase the interaction force between it and the water flow, thereby enhancing the flushing effect of the water flow on the cylindrical filter 500, that is, improving the self-cleaning effect of the cylindrical filter 500 within the water cup 100. As a result, the user does not need to frequently remove the cylindrical filter 500 for cleaning, which is conducive to improving the user experience. In addition, the technical solution of the present application is to drive the cylindrical filter 500 to rotate in a non-contact manner through magnetic drive. When the cylindrical filter 500 is blocked, the driving member can continue to drive the second magnetic member 400 to rotate without being affected by the cylindrical filter 500, causing the driving member to get stuck or even cause a malfunction.

[0130] In one embodiment, as shown in FIG1 , the dishwasher further comprises a spray arm 200, comprising a connected spray arm body 210 and a rotating shaft 220. The rotating shaft 220 is coaxially disposed with the cylindrical filter 500, and at least one of the rotating shaft 220 and the spray arm body 210 is fixedly connected to the cylindrical filter 500. The driving member is configured to drive the cylindrical filter 500 in circumferential rotation. In this embodiment, the circumferential rotation of the cylindrical filter 500 drives the rotating shaft 220 in circumferential rotation. Thus, the rotation speed of the second magnetic member 400, and thus the rotation speed of the spray arm 200, can be controlled by controlling the operation of the driving member. This allows the user to conveniently and precisely adjust the rotation speed of the spray arm 200. In this manner, the spray arm 200 can be controlled to rotate at different speeds for dishes with varying degrees of soiling, thereby achieving lower energy and water consumption while ensuring effective cleaning results.

[0131] In one embodiment, as shown in FIG1 , a water inlet connector 110 is provided at the bottom of the water cup 100. A washing chamber (not shown) is provided above the water cup 100. The rotating shaft 220 passes through the cylindrical filter 500 and is movably inserted into the water inlet connector 110. The spray arm body 210 is housed in the washing chamber and connected to the water inlet connector 110 via the rotating shaft 220. It will be appreciated that the water inlet connector 110 is also connected to a washing pump. The spray arm body 210 is provided with multiple water spray holes. The washing pump supplies water to the spray arm 200 through the water inlet connector 110. Water in the water inlet connector 110 flows through the rotating shaft to the spray arm body 210 and is finally sprayed into the washing chamber through the water spray holes of the spray arm body 210 to clean the dishes placed therein. In this embodiment, the rotating shaft 220 can both transmit motion to the spray arm body 210 and supply water to the spray arm body 210. The reuse of the rotating shaft 220 facilitates a simplified structure of the dishwasher. Of course, in other embodiments, the rotating shaft 220 may be passed through the bottom of the water cup 100 and directly connected to the water inlet pipe of the washing pump, or the rotating shaft 220 may be set as a solid structure and rotatably connected to other positions of the water cup 100, and the spray arm 200 may also include a water inlet portion connected to the spray arm body 210, which is connected to the water inlet connector 110 through the water inlet portion.

[0132] Referring to Figures 1 and 5 , in one embodiment, a mounting portion 511 is provided at the bottom of the cylindrical filter 500. The rotating shaft 220 passes through the mounting portion 511, and the first magnetic member 300 is fixedly mounted to the mounting portion 511. Thus, the cylindrical filter 500 is disposed around the rotating shaft 220, the mounting portion 511 is sleeved around the outer circumference of the rotating shaft 220, and the first magnetic member 300 is mounted on the mounting portion 511. This allows the first magnetic member 300 to be closer to the rotating shaft 220, facilitating the transmission of motion from the cylindrical filter 500 to the rotating shaft 220. Without loss of generality, the cylindrical filter 500 and the rotating shaft 220 are coaxially disposed so that both can rotate about their respective axes, thereby improving the rotational stability of the cylindrical filter 500 and the rotating shaft 220. Of course, in other embodiments, the rotating shaft 220 can be fixedly connected to the side of the cylindrical filter 500, the first magnetic component 300 can be fixedly installed at the bottom or middle of the side frame of the cylindrical filter 500, and the second magnetic component 400 can be installed at the bottom or side wall of the water cup 100.

[0133] In one embodiment, the inner and outer peripheries of the mounting portion 511 are both provided with upwardly projecting limiting ring protrusions 512, so as to form a receiving groove 513 for receiving and installing the first magnetic component 300 between the two limiting ring protrusions 512. The provision of the receiving groove 513 is conducive to the positioning and installation of the first magnetic component 300, and the first magnetic component 300 is installed in the receiving groove 513, that is, installed on the inner side of the cylindrical filter 500, which is conducive to improving the installation stability of the first magnetic component 300. Among them, the receiving groove 513 is an annular structure, and the first magnetic component 300 can be correspondingly provided as an annular structure, or a plurality of first magnetic components 300 can be received and installed in the receiving groove 513, and the plurality of first magnetic components 300 are distributed along the circumference of the receiving groove 513. The first magnetic member 300 can be fixed to the mounting portion 511 by being secured to the mounting portion 511 by the retaining ring protrusions 512 on both sides; or by being adhesively secured to the mounting portion 511; or by being secured to the mounting portion 511 by a retaining rib provided on the mounting portion 511. Of course, in other embodiments, the first magnetic member 300 can also be mounted on the outside of the mounting portion 511.

[0134] Referring to Figures 1 and 3 , in one embodiment, a first connecting sleeve 530 is fixedly disposed within the cylindrical filter screen 500, and the rotating shaft 220 is passed through and fixedly connected to the first connecting sleeve 530. This allows the rotating shaft 220 to be fixedly connected to the cylindrical filter screen 500 and to rotate driven by the cylindrical filter screen 500. Furthermore, the connection between the rotating shaft 220 and the cylindrical filter screen 500 is highly stable, facilitating smooth rotation of the rotating shaft 220. Of course, in other embodiments, the rotating shaft 220 may be fixedly connected to the mounting portion 511. The rotating shaft 220 and the mounting portion 511 may be bonded using a water-insoluble adhesive, or they may be secured together using a snap-fit ​​or screw fastening.

[0135] In one embodiment, the cylindrical filter 500 is provided with an inner skeleton 510 and an outer skeleton 520 connected to each other, and the sides of the inner and outer skeletons 520 are annular structures and are both provided with filter screens, wherein the mesh number of the filter screen provided on the inner skeleton 510 can be smaller than the mesh number of the filter screen provided on the outer skeleton 520, and preliminary filtration is performed by the filter screen provided on the inner skeleton 510, and then final filtration is performed by the filter screen provided on the outer skeleton 520. In this way, it can ensure that food residues can be effectively filtered, and can also prevent food residues from clogging the mesh of the filter screen, thereby affecting the flow of water between the inside and outside of the cylindrical filter 500. In addition, the mounting portion 511 is arranged at the bottom of the inner skeleton 510 as a part of the inner skeleton 510. It can be understood that food residues will remain on both the inner and outer sides of the inner skeleton 510, and most of the food residues are concentrated on the inner side of the inner skeleton 510. The filter screen of the inner skeleton 510 is more easily attached by food residues. Therefore, when the first magnetic part 300 is driven to rotate, the inner skeleton 510 can also be driven to rotate as a whole through the mounting portion 511, so as to enhance the flushing effect of the water flow on the food residues attached to the filter screen of the inner skeleton 510, thereby enhancing the self-cleaning effect of the filter screen of the inner skeleton 510 of the tube. The inner skeleton 510 and the outer skeleton 520 can be fixedly connected. When the inner skeleton 510 rotates, the outer skeleton 520 will also be driven, that is, the cylindrical filter 500 as a whole can rotate. As a result, the water flow flushing effect on the filter of the outer skeleton 520 can also be improved, which is beneficial to improving the self-cleaning effect of the filter of the outer skeleton 520; the inner skeleton 510 and the outer skeleton 520 can also be movably connected. It can be understood that most of the food residues are filtered by the filter of the inner skeleton 510 and concentrated on the inner side of the inner skeleton 510. There is less food residue attached to the filter of the outer skeleton 520. Therefore, even if the outer skeleton 520 does not rotate with the filter of the inner skeleton 510, the accumulation of food residue on the filter is relatively small, and there is no need to frequently remove it for cleaning. In addition, in this case, it is only necessary to drive the inner skeleton 510 of the cylindrical filter 500 to rotate, which can reduce the requirements for the magnetic attraction between the second magnetic part 400 and the first magnetic part 300.

[0136] In one embodiment, as shown in FIG1 , the dishwasher further comprises a rotating wheel 600 movably mounted on the water inlet connector 110 . The second magnetic member 400 is disposed on the rotating wheel 600 . The driving member is drivingly connected to the rotating wheel 600 to drive the rotating wheel 600 to rotate about the axis of the rotating shaft 220 . It is understood that the second magnetic member 400 is not convenient for direct connection with the driving member. In this embodiment, the driving member is directly drivingly connected to the rotating wheel 600 . Under the drive of the driving member, the rotating wheel 600 can rotate about the axis of the rotating shaft 220 , and the second magnetic member 400 disposed thereon can also rotate about the axis of the rotating shaft 220 , thereby transmitting power to the rotating shaft 220 in sequence via the first magnetic member 300 and the cylindrical filter 500 . Of course, in other embodiments, the second magnetic member 400 can also be provided with a fixed shaft to facilitate direct driving connection by the driving member.

[0137] In one embodiment, as shown in Figure 1, the second magnetic member 400 is installed on the side of the rotating wheel 600 close to the second magnetic member 400, which can reduce the distance between the first magnetic member 300 and the second magnetic member 400 to increase the magnetic attraction between the two, thereby facilitating the rotation of the first magnetic member 300 through the rotation of the second magnetic member 400. Specifically, an annular groove for accommodating and installing the second magnetic member 400 is provided on one side of the rotating wheel 600 close to the first magnetic member 300. In this way, the first magnetic member 300 and the second magnetic member 400 can be correspondingly arranged in an annular shape; or multiple first magnetic members 300 and the second magnetic member 400 can be correspondingly arranged one by one, and the multiple second magnetic members 400 are distributed circumferentially in the annular groove of the rotating wheel 600, and the multiple first magnetic members 300 are distributed circumferentially in the receiving groove 513. At this time, the two adjacent second magnetic members 400 can also be set with opposite magnetic poles, and the multiple first magnetic members 300 installed in the receiving groove 513 are also set accordingly. In this way, the installation stability of the first magnetic member 300 and the second magnetic member 400, as well as the driving force of the first magnetic member 300 on the second magnetic member 400 can be improved.

[0138] The present application also proposes a dishwasher spray water system, which is applied to the above-mentioned dishwasher.

[0139] Referring to Figures 7 and 8, in one embodiment of the present application, the dishwasher spray water system includes an inner container 10, a cup 100, a cup-lifting filter assembly 30, and a lower spray arm 40. The inner container 10 defines a washing chamber 101; the cup 100 is mounted at the bottom of the inner container 10 and communicates with the washing chamber 101; the cup-lifting filter assembly 30 is rotatably mounted within the cup 100; and the lower spray arm 40 includes a spray arm body 210 and a water supply pipe 42. The spray arm body 210 is located within the washing chamber 101. One end of the water supply pipe 42 is connected to and communicates with the spray arm body 210, while the other end passes through the cup-lifting filter assembly 30 and is rigidly connected thereto. The water supply pipe 42 is used to connect to the water supply pipeline to supply water to the lower spray arm 40.

[0140] Specifically, the inner container 10 has a washing chamber 101 formed therein. This can be designed as a square, cylindrical, or other shaped cavity as needed. A basket or shelf for holding tableware can be placed within the washing chamber 101. A water cup 100 is mounted to the bottom of the inner container 10 via a mounting surface 21. The mouth of the water cup 100 communicates with the washing chamber 101. The cup filter assembly 30 is rotatably mounted within the cup 100 via a bracket. Specifically, the cup filter assembly 30 includes a hollowed-out cup and a cylindrical filter disposed around the cup's periphery. The lower spray arm 40 includes a spray arm body 210 and a water pipe 42. The spray arm body 210 can be configured as a horizontally extending elongated strip. The spray arm body 210 is provided with a plurality of spray holes. The water pipe 42 extends vertically downward from the middle of the spray arm body 210, passing through the cup filter assembly 30 and extending into the water cup 100, so that the lower spray arm 40 is generally positioned in the middle of the water cup 100. The lower spray arm 40 is rigidly connected to the cup filter assembly 30 via the water pipe 42, enabling torque transmission between the lower spray arm 40 and the cup filter assembly 30. When one of the lower spray arm 40 and the cup filter assembly 30 rotates under the action of an external force (e.g., water flow or electric drive), the other can be driven to rotate together. For example, the lower spray arm 40 can be driven by water flow or electric drive, thereby driving the cup filter assembly 30 to rotate. For example, the cup filter assembly 30 can be driven to rotate by water flow or electricity, thereby driving the lower spray arm 40 to rotate. The water pipe 42 and the cup filter assembly 30 can be rigidly connected in a variety of ways, such as welding, fastener connection, snap connection, or keyway connection, as long as torque transmission between the two is ensured. The water pipe 42 is connected to the water supply pipeline. During the washing process, water from the water supply pipeline is transported through the water pipe 42 to the spray arm body 210, and then sprayed through the spray holes on the spray arm body 210 to spray and rinse the dishes in the washing chamber 101. After the spraying and rinsing, the spray liquid containing food residue collects at the bottom of the inner container 10 and flows into the cup filter assembly 30. The food residue is filtered by the cup filter assembly 30 before flowing into the drinking cup 100. After washing, the water is discharged through the drain pump 90 on the drinking cup 100.

[0141] The technical solution of the present application supplies water to the lower spray arm 40 through the water supply pipe during the washing process, and the tableware in the washing chamber 101 can be sprayed and rinsed through the lower spray arm 40. Since the lower spray arm 40 is arranged in the water cup 100, compared with the traditional technology in which the lower spray arm 40 is arranged outside the water cup 100, the arrangement position of the lower spray arm 40 of this solution is more centered, so that the spraying area of ​​the lower spray arm 40 is more reasonable, and the spraying area has no dead angle, which can achieve better spraying effect and residue collection effect. In addition, the cup filter assembly 30 is rotatably connected to the water cup 100, and the lower spray arm 40 is rigidly connected to the cup filter assembly 30 via the water pipe 42. During the washing process, as long as one of the cup filter assembly 30 and the lower spray arm 40 rotates under the action of an external force (such as water flow or electric drive), the other can be driven to rotate. Compared with the traditional technology in which the cup filter assembly 30 and the water cup 100 are fixedly connected by a buckle and cannot move or rotate during the washing process, the cup filter assembly 30 of this solution can rotate relative to the water cup 100 during the washing process, so that the water flow can rinse different positions of the cup filter assembly 30 in the circumferential direction, so that the circumferential surface of the cup filter assembly 30 can be cleaned in all directions, thereby achieving a self-cleaning effect of the cup filter assembly 30.

[0142] In one embodiment, the cup-lifting filter assembly 30 is centrally located within the water cup 100, and the water delivery pipe 42 centrally passes through the cup-lifting filter assembly 30. Specifically, in one embodiment, the axes of the water cup 100, the cup-lifting filter assembly 30, and the water delivery pipe 42 coincide or substantially coincide. This allows the lower spray arm 40 to be centrally located relative to the water cup 100 and the cup-lifting filter assembly 30. This further centralizes the lower spray arm 40, further eliminating blind spots in the spraying process, thereby achieving better spraying and residue collection effects.

[0143] In order to facilitate the connection of the water supply pipe 42 of the lower spray arm 40 with the water supply pipeline, as shown in Figure 8, in one embodiment, a connecting pipe 23 is provided at the bottom of the water cup 100, and the connecting pipe 23 has a first port connected to the water cup 100, and a second port connected to the water supply pipeline. The end of the water supply pipe 42 away from the spray arm body 210 is connected to the connecting pipe 23 via the first port.

[0144] In one embodiment, the connecting tube 23 can be fixed to the bottom of the water cup 100 by assembly or integral molding. To simplify the manufacturing process and ensure sealing reliability, in one embodiment, the connecting tube 23 is integrally molded at the bottom of the water cup 100. The water supply pipe 42 of the lower spray arm 40 extends downward to the bottom of the water cup 100 and is then inserted into the connecting tube 23 through a first port. The water outlet of the water supply line is connected to and communicates with the second port of the connecting tube 23. In this way, the water supply pipe 42 is connected to the water supply line through the connecting tube 23. Furthermore, the water supply pipe 42 of the lower spray arm 40 is indirectly connected to the water supply line through the connecting tube 23, so that the water supply line does not interfere with the rotation of the lower spray arm 40.

[0145] To ensure a reliable seal between the water supply pipe 42 of the lower spray arm 40 and the water cup 100 and connecting pipe 23, in one embodiment, a seal 700 is provided at the first port. The seal 700 is used to seal the mating parts of the water cup 100, the water supply pipe 42, and the connecting pipe 23. Specifically, the seal 700 can be made of rubber or silicone with good sealing properties. The seal 700 can be mounted on the periphery of the water supply pipe 42, with the inner circumference of the seal 700 sealingly connected to the outer circumference of the water supply pipe 42, and the outer circumference of the seal 700 sealingly connected to the mating parts of the water cup 100 and the connecting pipe 23. This can effectively improve the sealing reliability of the mating parts of the water cup 100, the water supply pipe 42, and the connecting pipe 23, completely eliminating leakage problems. It can also increase the spray arm pressure of the lower spray arm 40, thereby achieving a better spraying and flushing effect.

[0146] Traditionally, the lower spray arm 40 of a dishwasher is typically rotated by water flow. The spray arm's speed is determined by the water pressure of the wash pump 51, making it impossible to arbitrarily adjust the spray arm's speed, enabling forward and reverse rotation of the spray arm, or performing targeted washing. This hinders targeted cleaning and reduces washing time. To enhance the controllability of the rotation of the lower spray arm 40 and improve cleaning efficiency, in one embodiment, the dishwasher's spray water system further includes a drive mechanism for rotating either the lower spray arm 40 or the cup-lifting filter assembly 30, thereby driving the other to rotate together.

[0147] In one embodiment, a drive mechanism drives the rotation of either the lower spray arm 40 or the cup-lifting filter assembly 30, thereby driving the other. For example, the drive mechanism can drive the lower spray arm 40 to rotate, which in turn drives the cup-lifting filter assembly 30 to rotate. Another example is that the drive mechanism can drive the cup-lifting filter assembly 30 to rotate, which in turn drives the lower spray arm 40 to rotate. Compared to water-driven methods, using a drive mechanism to electrically drive the lower spray arm 40 or the cup-lifting filter assembly 30 offers greater controllability, allowing for the ability to adjust the speed, forward and reverse rotation, and targeted cleaning of the lower spray arm 40, thereby achieving targeted cleaning and reducing washing time. For example, the driving mechanism may include a driving motor 61. Taking the driving motor 61 driving the lower spray arm 40 to rotate as an example, when the rotation speed of the lower spray arm 40 needs to be adjusted, it is only necessary to adjust the torque output by the driving motor 61; when the direction of the lower spray arm 40 needs to be adjusted, it is only necessary to control the driving motor 61 to rotate forward or reverse to adjust the direction of the output torque of the driving motor 61; when fixed-point washing needs to be achieved, it is only necessary to drive the lower spray arm 40 to rotate to a preset position and keep it fixed by the driving motor 61.

[0148] The drive mechanism and the cup-lifting filter assembly 30 or the lower spray arm 40 can be driven by either contact or non-contact mechanisms. Considering the complex environment of the dishwasher's spray water system, the drive mechanism and the cup-lifting filter assembly 30 or the lower spray arm 40 can be driven by non-contact mechanisms to eliminate the risk of water leakage.

[0149] 7 and 8 , in one embodiment, the drive mechanism includes a drive motor 61, a transmission member 62, and a magnetic coupling assembly 63. The drive motor 61 is drivably connected to the transmission member 62 to drive the transmission member 62 to rotate. The transmission member 62 is located outside the water cup 100. The magnetic coupling assembly 63 includes a first magnetic member 300 and a second magnetic member 400. The first magnetic member 300 is disposed on the transmission member 62, and the second magnetic member 400 is disposed on the cup lifting filter assembly 30. The first magnetic member 300 and the second magnetic member 400 have opposite magnetic poles at their facing locations.

[0150] Specifically, the drive motor 61 and the transmission member 62 can be driven directly or indirectly via a transmission assembly (e.g., a gear assembly or a synchronous pulley assembly), as long as the drive motor 61 can drive the transmission member 62 to rotate. For example, in one embodiment, the transmission member 62 is a transmission gear. The output end of the drive motor 61 is provided with a drive gear that meshes with the transmission gear. The drive motor 61 drives the drive gear to rotate, thereby driving the transmission gear (i.e., the transmission member 62) to rotate. Of course, in some embodiments, the transmission member 62 can be a synchronous pulley. The output end of the drive motor 61 also has a synchronous pulley. A synchronous belt is provided around the outer periphery of the two synchronous pulleys. The rotation of the synchronous pulley driven by the drive motor 61 then drives the other synchronous pulley (i.e., the transmission member 62) via the synchronous belt. The transmission member 62 is located on the outside of the water cup 100, specifically on the outside of the bottom surface or the outside of the outer periphery of the water cup 100. For example, in one embodiment, the transmission member 62 is located at the bottom of the water cup 100 and is located opposite the bottom of the cup filter assembly 30. The magnetic coupling assembly 63 includes a first magnetic member 300 and a second magnetic member 400. The first magnetic member 300 is located at the top of the transmission member 62, and the second magnetic member 400 is located at the bottom of the cup lifting filter assembly 30. The magnetic poles of the first magnetic member 300 and the second magnetic member 400 are opposite in the opposing portions. For example, the north pole of the first magnetic member 300 is opposite the south pole of the second magnetic member 400, and the south pole of the first magnetic member 300 is opposite the north pole of the second magnetic member 400. The specific number of magnetic coupling assemblies 63 can be set according to actual needs and can be one, two, or more groups. The first magnetic member 300 and the second magnetic member 400 can specifically be magnets.

[0151] In one embodiment, the drive motor 61 and transmission member 62 are both located outside the water cup 100. The cup-lifting filter assembly 30 is located inside the water cup 100. The transmission member 62 is located on the first magnetic member 300, and the cup-lifting filter assembly 30 is provided with a second magnetic member 400. The first and second magnetic members 300 and 400 have opposite magnetic poles at their facing locations, resulting in an attractive force between the first and second magnetic members 300 and 400. When the drive motor 61 rotates the transmission member 62, the magnetic resistance between the first and second magnetic members 300 and 400 changes. To maintain the magnetic resistance, the second magnetic member 400 also changes accordingly, causing the cup-lifting filter assembly 30 to rotate with the transmission member 62. Because the cup-lifting filter assembly 30 is rigidly connected to the lower spray arm 40, the lower spray arm 40 also rotates with the cup-lifting filter assembly 30. In this way, during the washing process, the drive mechanism can drive the cup-lifting filter assembly 30 and the lower spray arm 40 to rotate together, allowing the cup-lifting filter assembly 30 to achieve a self-cleaning effect. At the same time, the lower spray arm 40 can realize functions such as adjustable speed and direction and fixed-point washing, thereby achieving targeted cleaning and reducing washing time. In addition, in one embodiment, the drive motor 61, the cup-lifting filter assembly 30, and the lower spray arm 40 are connected by a magnetic coupling assembly 63 to achieve non-contact drive coordination, which can completely eliminate the risk of water leakage. Moreover, the drive motor 61 and the lower spray arm 40 are non-contact drive coordination. Even if the lower spray arm 40 is blocked, it will not cause damage to the drive motor 61, thereby not affecting the life of the drive motor 61, improving safety, and allowing manual intervention and adjustment at any time.

[0152] In one embodiment, a connecting tube 23 is provided at the bottom of the water cup 100, and a transmission member 62 is rotatably mounted on the outer periphery of the connecting tube 23. The transmission member 62 is opposite to and spaced apart from the bottom of the water cup 100. The first magnetic member 300 is provided on the top of the transmission member 62, and the second magnetic member 400 is provided on the bottom of the cup filter assembly 30.

[0153] In one embodiment, a connecting tube 23 is provided at the bottom of the water cup 100. This connecting tube 23 can be used to mount a transmission member 62. This connecting tube 23 can also be used to connect the water delivery pipe 42 of the lower spray arm 40 to the water supply pipeline, making the overall structure more compact. The transmission member 62 can be specifically arranged in an annular shape. For example, the transmission member 62 can be a ring-shaped gear. The transmission member 62 is mounted around the outer periphery of the connecting tube 23. The top surface of the transmission member 62 is opposite to the bottom surface of the water cup 100 and spaced apart. The bottom surface of the cup lifting filter assembly 30 is opposite to the bottom surface of the water cup 100 and spaced apart. The top surface of the transmission member 62 can have one, two, or more first magnetic members 300, and the bottom surface of the cup lifting filter assembly 30 can have a matching number of second magnetic members 400.

[0154] Based on the above embodiments, please refer to Figure 8. In one embodiment, the water cup 100 is provided with a water inlet 22 and a water outlet, and the water supply pipeline includes a washing pump 51, a water diversion valve 52 and a first water distribution pipe 53. The water diversion valve 52 is provided with a water inlet and a first water diversion port. The water inlet end of the washing pump 51 is connected to the water outlet through the first water pipe 54, and the water outlet end of the washing pump 51 is connected to the water inlet through the second water pipe 55. The first water distribution pipe 53 connects the first water diversion port with the water supply pipe 42.

[0155] In one embodiment, the water inlet of the first water distribution pipe 53 is connected to the first water outlet of the water diverter valve 52. The water outlet of the first water distribution pipe 53 can be connected to the water supply pipe 42 via the connecting pipe 23. The first water distribution pipe 53 can be a rubber hose, which has better flexibility and is easy to bend and connect. When the dishwasher is in operation, water can be poured into the water cup 100 through the water inlet 22. The water in the water cup 100 is transported to the wash pump 51 through the first water pipe 54. After being pressurized by the wash pump 51, the water is transported to the water diverter valve 52 through the second water pipe 55. The water is then transported to the first water distribution pipe 53 through the first water outlet of the water diverter valve 52. Then, the water is transported to the water supply pipe 42 of the lower spray arm 40 through the first water distribution pipe 53. Finally, the water is transported to the spray arm body 210 through the water supply pipe 42. The water is then sprayed into the washing chamber 101 of the inner tank 10 by the spray arm to spray and clean the dishes in the washing chamber 101. The water in the washing chamber 101 is filtered through the cup filter assembly 30 and then flows back into the water cup 100, and is then transported to the lower spray arm 40 through the water supply pipeline, thereby achieving cyclic cleaning. In addition, the water cup 100 is also connected to a drain pump 90. When washing is completed, the waste water can be discharged through the drain pump 90. It should be noted that the water diverter valve 52 can be integrated and installed on the water cup 100, or the water diverter valve 52 can be set independently of the water cup 100 to serve as a separate functional component to supply water to the dishwasher's pipeline. For example, as shown in Figures 7 and 8, in one embodiment, the water diverter valve 52 is integrated and installed on the side of the water cup 100, and the water diverter valve 52 can be supported and fixed by the water cup 100. For another example, as shown in Figure 9, in another embodiment, the water diverter valve 52 is set on the water cup 100.

[0156] To further expand the spray area and improve the washing effect, referring to FIG. 9 , in one embodiment, the dishwasher spray water system further includes a middle spray arm 70 and an upper spray arm 80. The upper spray arm 80, the middle spray arm 70, and the lower spray arm 40 are arranged sequentially from top to bottom within the washing chamber 101. The water diversion valve 52 further includes a second water diversion port and a third water diversion port. The second water diversion port is connected to the middle spray arm 70 via a second water distribution pipe 56, and the third water diversion port is connected to the upper spray arm 80 via a third water distribution pipe 57. Thus, during the washing process, after the wash pump 51 pumps water from the water cup 100 into the water diversion valve 52, the water flow is distributed to the lower spray arm 40, the middle spray arm 70, and the upper spray arm 80 via the water diversion valve 52. This allows the lower spray arm 40, the middle spray arm 70, and the upper spray arm 80 to spray and rinse the lower, middle, and upper areas of the washing chamber 101 in an all-round, seamless manner, thereby achieving a better washing effect.

[0157] In one embodiment, a branch is provided within the valve cavity of the water diverter valve 52, connecting the water inlet to the first water diverter. In one embodiment, water in the water cup 100 is pressurized by the wash pump 51 and delivered to the valve cavity of the water diverter valve 52. The water is then supplied to the lower spray arm 40 through a separate branch for spraying. This increases the spray pressure in the lower spray arm 40, thereby achieving a better spraying effect.

[0158] In order to enable the dishwasher to achieve different spray modes, in one embodiment, a switching mechanism is provided in the valve cavity of the water diverter valve 52, and the switching mechanism is used to switch the water path state of the water diverter valve 52 so that the water diverter valve 52 can arbitrarily select to supply water to at least one of the lower spray arm 40, the middle spray arm 70 and the upper spray arm 80.

[0159] Specifically, the switching mechanism may include a paddle disposed within the valve chamber and a drive member for rotating the paddle. For example, when the drive member rotates the paddle to the first position, the water diverter valve 52 can supply water solely to the lower spray arm 40, achieving a separate spraying mode for the lower spray arm 40. When the drive member rotates the paddle to the second position, the water diverter valve 52 can supply water solely to the middle spray arm 70, achieving a separate spraying mode for the middle spray arm 70. When the drive member rotates the paddle to the third position, the water diverter valve 52 can supply water solely to the upper spray arm 80, achieving a separate spraying mode for the upper spray arm 80. In this way, one of the lower spray arm 40, the middle spray arm 70, or the upper spray arm 80 can be controlled to operate independently according to actual needs, achieving greater spray arm pressure and a better spraying effect. Of course, the switching mechanism can also be used to switch the water path state of the water diverter valve 52 so that the water diverter valve can supply water to any two of the lower spray arm 40, the middle spray arm 70, and the upper spray arm 80 simultaneously, thereby realizing three different spray modes, namely, a simultaneous spray mode of the lower spray arm 40 and the middle spray arm 70, a simultaneous spray mode of the lower spray arm 40 and the upper spray arm 80, or a simultaneous spray mode of the middle spray arm 70 and the upper spray arm 80. Of course, the switching mechanism can also be used to switch the water path state of the water diverter valve 52 so that the water diverter valve can supply water to any two of the lower spray arm 40, the middle spray arm 70, and the upper spray arm 80 simultaneously, thereby realizing a simultaneous spray mode of the lower spray arm 40, the middle spray arm 70, and the upper spray arm 80.

[0160] The above description is merely an optional embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made using the contents of the present application specification and drawings under the inventive concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A dishwasher, wherein: The dishwasher comprises: Water cup; A spray arm, the spray arm comprising a spray arm body and a rotating shaft connected to each other, the rotating shaft being rotatably connected to the water cup; A cylindrical filter is rotatably disposed in the water cup, the cylindrical filter is sleeved outside the rotating shaft and fixed to the rotating shaft; and The driving member is drivingly connected to the rotating shaft to drive the rotating shaft to rotate in a circumferential direction.

2. The dishwasher according to claim 1, wherein: A first connecting sleeve is fixedly arranged in the cylindrical filter screen, and the rotating shaft passes through and is fixedly connected to the first connecting sleeve.

3. The dishwasher according to claim 2, wherein: A limiting clamping protrusion is convexly arranged on the outer periphery of the rotating shaft, and a limiting clamping socket is correspondingly arranged on the first connecting sleeve, and the limiting clamping protrusion is engaged with the limiting clamping socket.

4. The dishwasher according to claim 2, wherein: The outer wall of the rotating shaft is interference-fitted with the inner wall of the first connecting sleeve.

5. The dishwasher according to claim 4, wherein: The rotating shaft includes a first connecting section and a second connecting section. The outer circumference of the first connecting section is more protruding outward than the outer circumference of the second connecting section. The outer wall of the first connecting section is interference fit with the inner wall of the first connecting sleeve. The second connecting section is rotatably connected to the water cup.

6. The dishwasher according to any one of claims 1 to 5, wherein: A second connecting sleeve protrudes upward from the top of the cylindrical filter, and a fixing portion connected to the spray arm body is provided on each of the opposite sides of the rotating shaft. The fixing portion and the rotating shaft are spaced apart, and the second connecting sleeve is sleeved on the rotating shaft between the fixing portion and the rotating shaft.

7. The dishwasher according to claim 6, wherein: A first limiting protrusion is protruded on one side of the fixing portion close to the rotating shaft, and a second limiting protrusion is correspondingly protruded on the outer side of the second connecting sleeve. The first limiting protrusion is limitedly matched with a side of the second limiting protrusion away from the spray arm body.

8. The dishwasher according to any one of claims 1 to 7, wherein: The dishwasher also includes a first magnetic member and a second magnetic member that are arranged opposite to each other, the first magnetic member is fixed to the rotating shaft, the second magnetic member and the first magnetic member have opposite magnetic poles, and the second magnetic member can rotate relative to the water cup, and the driving member is drivingly connected to the second magnetic member to drive the second magnetic member to rotate, thereby driving the rotating shaft to rotate.

9. The dishwasher according to claim 8, wherein: The first magnetic member is fixedly mounted on the cylindrical filter.

10. The dishwasher according to claim 9, wherein: A mounting portion is provided at the bottom of the cylindrical filter screen, the rotating shaft passes through the mounting portion, and the first magnetic member is fixedly mounted on the mounting portion.

11. The dishwasher according to claim 10, wherein: The inner and outer peripheries of the mounting portion are both provided with limiting ring protrusions protruding toward the spray arm body, so as to form a receiving groove for receiving and installing the first magnetic member between the two limiting ring protrusions.

12. The dishwasher according to any one of claims 8 to 11, wherein: The dishwasher further comprises a rotating wheel rotatably connected to the water cup, the second magnetic member is arranged on the rotating wheel, and the driving member is drivingly connected to the rotating wheel to drive the rotating wheel to rotate around the axis of the rotating shaft.

13. The dishwasher according to claim 12, wherein: The driving member is configured as a motor, the motor is provided with a driving gear, the outer periphery of the rotating wheel is provided with a transmission tooth groove, and the driving gear is meshed with the transmission tooth groove.

14. The dishwasher according to any one of claims 1 to 13, wherein: A water inlet joint is arranged at the bottom of the water cup, a washing chamber is arranged above the water cup, the rotating shaft is movably inserted in the water inlet joint, the spray arm body is accommodated in the washing chamber and is connected to the water inlet joint through the rotating shaft.

15. The dishwasher according to claim 14, wherein: The water inlet joint includes a main body and a connecting part, the main body is connected to the bottom of the water cup through the connecting part, the inner diameter of the connecting part is larger than the inner diameter of the main body, a sealing part is fixed in the connecting part, and the rotating shaft is movably inserted through the sealing part.

16. The dishwasher according to any one of claims 1 to 15, wherein: The rotating shaft is coaxially arranged with the cylindrical filter screen, and at least one of the rotating shaft and the spray arm body is fixedly connected to the cylindrical filter screen.

17. The dishwasher according to any one of claims 6 to 16, wherein: The second connecting sleeve is fixedly connected to the cylindrical filter screen by snap-fitting, plugging or snapping.

18. The dishwasher according to claim 17, wherein: The outer periphery of one end of the second connecting sleeve close to the cylindrical filter screen extends outward to form a mounting ring, and a connecting buckle is convexly provided on the outer periphery of the mounting ring. The cylindrical filter screen is correspondingly provided with a connecting bayonet, and the connecting buckle is buckled with the connecting bayonet.

19. The dishwasher according to any one of claims 15 to 18, wherein: The outer ring of the sealing element is interference-fitted with the connecting portion.

20. The dishwasher according to any one of claims 15 to 19, wherein: The connecting portion is more protruding than the main body, and the rotating wheel is sleeved on the outer side of the connecting portion.

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