Dish washing machine

Abstract

A self-cleaning spraying arm comprises a fixing column, a water inlet channel with a downward opening or an upward opening is formed in the fixing column, a plurality of water through holes are formed in the outer side wall of the fixing column in the circumferential direction at intervals, and the water through holes are communicated with the water inlet channel; the fixed column is rotatably sleeved with the spraying arm body, a plurality of spraying holes are formed in the spraying arm body, a water flow channel is formed between the spraying arm body and the fixed column, and the water flow channel is communicated with the spraying holes and the water through hole. The self-cleaning spraying arm is simple in structure and capable of cleaning a filtering assembly of the dish washing machine.

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen electrical appliances technical field, especially a dish washing machine. BACKGROUND

[0002] The dish washing machine is generally provided with a filter residue collecting basket for collecting food residue, and the user takes out the filter residue collecting basket to pour out the food residue after the dish washing machine is finished with spraying and cleaning, which is not only troublesome to operate, but also needs to disassemble and clean the residue collecting basket every certain period of time, and once the food residue is not taken out and cleaned in time, it will cause the cleaning cavity to smell and affect the hygiene of tableware. SUMMARY

[0003] The utility model aims at at least in a certain extent solves one of the problems existing in prior art related, for this purpose, the utility model provides a kind of self-cleaning spray arm, its structure is simple, can realize the cleaning of the filter assembly of dish washing machine.The utility model further provides a kind of dish washing machine.

[0004] According to the above-mentioned self-cleaning spray arm, the following technical scheme is used to realize it:

[0005] A self-cleaning spray arm, comprising: a fixed column, provided with a water inlet channel opening downward or upward, a plurality of water passages are circumferentially spaced apart on the outer side wall of the fixed column, and the plurality of water passages are respectively communicated with the water inlet channel;And a spray arm body, rotatably sleeved on the outside of the fixed column, and provided with a plurality of spray holes, a water flow channel is formed between the spray arm body and the fixed column, and the water flow channel is respectively communicated with the spray hole and the water passage.

[0006] In some embodiments, the spray arm body includes a sleeve body, the lower end of the sleeve body is open, the upper end of the sleeve body is open or closed, the sleeve body is rotatably sleeved on the outside of the fixed column, a plurality of spray holes are circumferentially spaced apart on the outer side wall of the sleeve body, and a water flow channel is formed between the sleeve body and the fixed column.

[0007] In some embodiments, at least two connecting arms extending outward are protruded circumferentially on the outer side wall of the sleeve body, and at least one spray hole is arranged on the connecting arm.

[0008] In some embodiments, a limiting portion extending outward is protruded on the top of the fixed column, the spray arm body is sleeved on the outside of the fixed column and located below the limiting portion;And / or a connecting portion extending downward is arranged on the bottom of the fixed column, and the bottom of the spray arm body extends downward to the outer of the upper end of the connecting portion.

[0009] In some embodiments, the limiting portion is arranged above the spray arm body, an anti-skid portion is arranged on the peripheral wall of the limiting portion, and / or an upper protection member is arranged on the upper end of the fixed column between the limiting portion and the spray arm body.

[0010] In some embodiments, a lower protection member is arranged on the connecting portion and abuts against the bottom of the spray arm body.

[0011] According to the above-mentioned dishwasher, the following technical solutions are adopted:

[0012] The dishwasher comprises a water cup assembly provided with a water collecting cavity with an upward opening, a water inlet, and a water outlet; a filter assembly detachably arranged in the water collecting cavity; a self-cleaning spray arm as described above, which is arranged in the filter assembly and detachably connected to the filter assembly through the fixed column; and a self-cleaning water supply assembly, through which the water inlet channel of the self-cleaning spray arm is connected to the water collecting cavity or tap water.

[0013] In some embodiments, a self-cleaning water inlet is arranged at the bottom of the water cup assembly corresponding to the position of the water collecting cavity, a hollow connecting column is arranged at the bottom of the filter assembly corresponding to the position of the self-cleaning water inlet, the upper and lower ends of the hollow connecting column are connected to the lower end of the fixed column and the self-cleaning water inlet respectively, and the water outlet end of the self-cleaning water supply assembly is connected to the water inlet channel in sequence through the self-cleaning water inlet and the hollow connecting column.

[0014] In some embodiments, a lower protection member is arranged between the top of the hollow connecting column and the bottom of the spray arm body, and / or a sealing member is arranged between the hollow connecting column and the lower end of the fixed column.

[0015] In some embodiments, the self-cleaning water supply assembly comprises a three-way control valve and a slag collecting and cleaning water pipe, the water inlet of the three-way control valve is connected to the water collecting cavity, the first water outlet of the three-way control valve is connected to the sewer, and the second water outlet of the three-way control valve is connected to the water inlet channel through the slag collecting and cleaning water pipe.

[0016] In some embodiments, the dishwasher further comprises a drainage pump, which comprises a pump housing, an impeller, a slag cutter, and a driver, the pump housing is provided with a pump cavity, a drainage inlet, and a drainage outlet, the pump cavity is connected to the water outlet through the drainage inlet, the pump cavity is connected to the sewer or the water inlet end of the self-cleaning water supply assembly through the drainage outlet, the impeller and the slag cutter are rotatably arranged in the pump cavity, and the driver is arranged on the pump housing and connected to the impeller and the slag cutter respectively.

[0017] Compared with the prior art, the self-cleaning spray arm has at least the following beneficial effects:

[0018] The self-cleaning spray arm of the utility model, through the spray arm body rotatable sleeve is equipped in the fixed column, and the spray hole of spray arm body can be connected with water source through fixed column, simple structure, convenient to 360 degree rotation automatic cleaning of adopting self-cleaning spray arm to the filter assembly of dishwasher, eliminate the residue left, improve the self-cleaning of filter assembly. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the explosion drawing of the self-cleaning spray arm in the embodiment 1 of the utility model;

[0020] Figure 2 It is the sectional view of the self-cleaning spray arm in the embodiment 1 of the utility model;

[0021] Figure 3 It is the structural schematic diagram of fixed column in the embodiment 1 of the utility model;

[0022] Figure 4 It is the structural schematic diagram of spray arm body in the embodiment 1 of the utility model;

[0023] Figure 5 It is the explosion drawing of the self-cleaning spray arm in the embodiment 2 of the utility model;

[0024] Figure 6 It is the sectional view of the self-cleaning spray arm in the embodiment 2 of the utility model;

[0025] Figure 7 It is the explosion drawing of the residue collection filter system of dishwasher in the embodiment 3 of the utility model;

[0026] Figure 8 It is the sectional view of the dishwasher in the embodiment 3 of the utility model;

[0027] Figure 9 It is the bottom view of the dishwasher in the embodiment 3 of the utility model;

[0028] Figure 10 It is the schematic diagram of the dishwasher in the embodiment 3 of the utility model;

[0029] Figure 11 It is the sectional view of the dishwasher in the embodiment 3 of the utility model.

[0030] In the drawing: 1-self-cleaning water supply assembly, 11-three-way control valve, 12-residue collection cleaning water pipe, 13-drain pipe;

[0031] 2-water cup assembly, 21-water collection cavity, 221-drainage port, 222-washing water outlet, 223-self-cleaning water inlet;

[0032] 3 - filter assembly, 31 - micro filter, 311 - hollow connecting column, 32 - sealing element, 33 - lower sealing ring;

[0033] 4 - drainage pump, 41 - pump housing, 411 - pump cavity, 412 - drainage inlet, 413 - drainage outlet, 42 - impeller, 43 - slag cutter, 44 - driver;

[0034] 5 - self-cleaning spray arm, 51 - fixed column, 511 - water inlet channel, 512 - water passage hole, 513 - limiting part, 5131 - anti-skid part, 514 - connecting part, 52 - spray arm body, 5201 - spray hole, 521 - sleeve body, 522 - connecting arm, 53 - water flow channel, 54 - upper protection element, 55 - lower protection element. DETAILED DESCRIPTION

[0035] The following examples are used to illustrate the present application, but the present application is not limited by these examples. Modifications to the specific embodiments of the present application or equivalent replacements to some technical features are made without departing from the spirit of the present application, and they should be included in the technical solution range of the present application.

[0036] Example 1

[0037] Reference Figures 1-4 The present embodiment provides a self-cleaning spray arm, which comprises a fixed column 51 and a spray arm body 52. The fixed column 51 is provided with a water inlet channel 511 which is open downward or upward. In this embodiment, the fixed column 51 is provided with a water inlet channel 511 which is open downward. A plurality of water passage holes 512 are circumferentially spaced apart on the outer side wall of the fixed column 51. The plurality of water passage holes 512 are respectively connected to the water outlet end of the water inlet channel 511. The water inlet end of the water inlet channel 511 is connected to an external water source or a water cup assembly of a dishwasher.

[0038] When the self-cleaning spray arm 5 is installed in the filter assembly 3 of the dishwasher, see Figures 8-9 Without disassembling the filter assembly 3, only 360-degree rotation automatic cleaning of the filter assembly 3 of the dishwasher by the self-cleaning spray arm 5 is needed to eliminate residue and improve self-cleaning of the filter assembly.

[0039] Reference Figures 1-4Further, the spray arm body 52 comprises a sleeve body 521, the lower end of the sleeve body 521 is open, the upper end of the sleeve body 521 is open or closed, and in this embodiment, the upper and lower ends of the sleeve body 521 are open as an example, the sleeve body 521 is rotatably sleeved outside the fixed column 51, so that the sleeve body 521 and the fixed column 51 are surrounded to form a "middle" shape. The water flow channel 53 is formed between the sleeve body 521 and the fixed column 51, and a plurality of spray holes 5201 are circumferentially spaced apart on the outer side wall of the sleeve body 521, and part of the spray holes are arranged in the height direction to realize 360-degree rotation cleaning of the filter assembly 3 at different heights.

[0040] Further, at least two outwardly extending connecting arms 522 are circumferentially spaced apart on the outer side wall of the sleeve body 521, and in this embodiment, the number of connecting arms 522 is two as an example, the two connecting arms 522 are integrally formed on the opposite two side walls of the sleeve body 521, and at least one spray hole 5201 is arranged on the connecting arm 522 to form a larger cleaning range. Through the cooperation of the spray holes on the connecting arm 522 and the spray holes on the sleeve body 521, different cleaning tracks can be formed to effectively improve the self-cleaning effect of the filter assembly 3.

[0041] Reference Figures 1-3 Further, the limiting portion 513 extending outwardly is provided on the top of the fixed column 51, the spray arm body 52 is sleeved outside the fixed column 51 and located below the limiting portion 513, so as to realize the upper limiting of the spray arm body 52 by the limiting portion 513, and prevent the spray arm body 52 from being pulled out upwardly from the fixed column 51 during rotation. The connecting portion 514 extending downwardly is arranged on the bottom of the fixed column 51, and is used for detachable connection with the filter assembly of the dishwasher, and the bottom of the spray arm body 52 extends downwardly to the upper end outside of the connecting portion 514, so as to ensure that the spray arm body 52 can cover the whole water flow hole 512.

[0042] Further, the anti-skid portion 5131 is arranged on the peripheral wall of the limiting portion 513, so that the user holds the limiting portion 513 to rotate the self-cleaning spray arm 5 and slips. The upper protective member 54 is sleeved outside the upper end of the fixed column 51 and located between the limiting portion 513 and the spray arm body 52, so that the spray arm body 52 and the limiting portion 513 are in flexible contact, and the friction noise between the spray arm body 52 and the limiting portion 513 of the fixed column 51 is effectively reduced. In addition, the lower protective member 55 is sleeved outside the connecting portion 514, and the lower protective member 55 abuts against the bottom of the spray arm body 52, and the lower protective member 55 is used for making the spray arm body 52 and the hollow connecting column 311 of the filter assembly 3 in flexible contact, thereby effectively reducing the friction noise between the spray arm body 52 and the filter assembly 3.

[0043] Embodiment 2

[0044] Embodiment 5-6, the difference between this embodiment and embodiment 1 is that the specific structure of the self-cleaning spray arm 5 is different. In this embodiment, the self-cleaning spray arm 5 comprises a fixed column 51, a spray arm body 52 and a lower guard 55, wherein the fixed column 51 has a downwardly open water inlet channel 511, the spray arm body 52 is closed at the upper end and open at the lower end, the spray arm body 52 is rotatably covered from top to bottom outside the fixed column 51, and a water flow channel 53 is formed between the spray arm body 52 and the fixed column 51, and the lower guard 55 is sleeved outside the lower end of the fixed column 51 and below the spray arm body 52.

[0045] Further, the spray arm body 52 comprises a sleeve body 521 and at least two connecting arms 522, the sleeve body 521 is open at the lower end and closed at the upper end, the sleeve body 521 is rotatably covered from top to bottom outside the fixed column 51, a plurality of spray holes 5201 are circumferentially spaced apart on the outer side wall of the sleeve body 521, and a water flow channel 53 is formed between the sleeve body 521 and the fixed column 51. The at least two connecting arms 522 are circumferentially spaced apart on the outer side wall of the sleeve body 521, and at least one spray hole is provided on each connecting arm.

[0046] Further, a limiting structure or buckle structure is provided between the lower end of the spray arm body 52 and the fixed column 51 to prevent the spray arm body 52 from being pulled out of the fixed column 51 upward during rotation.

[0047] Embodiment 3

[0048] Embodiments 7-11, this embodiment also provides a dishwasher comprising a self-cleaning water supply assembly 1, a water cup assembly 2, a filter assembly 3 and a self-cleaning spray arm as described in embodiment 1 or 2. The water cup assembly 2 is provided with an upwardly open water collecting cavity 21, a water inlet and a water outlet 221, and the water collecting cavity 21 is in communication with the water inlet and the water outlet 221 respectively. The filter assembly 3 is detachably installed in the water collecting cavity 21, the self-cleaning spray arm 5 is arranged in the filter assembly 3, the spray arm body 52 is detachably connected with the filter assembly 3 through the fixed column 51, the spray arm body 52 can rotate 360 degrees relative to the fixed column 51, and the water inlet channel 511 of the self-cleaning spray arm 5 is in communication with the water collecting cavity 21 or tap water through the self-cleaning water supply assembly 1. In this embodiment, the self-cleaning water supply assembly 1, the water cup assembly 2, the filter assembly 3 and the self-cleaning spray arm together constitute a residue collecting and filtering system. As can be seen, by arranging the self-cleaning spray arm 5 in the filter assembly 3, the filter assembly 3 can also be self-cleaned without being separately disassembled.

[0049] Reference Figures 9-11Further, the self-cleaning water supply assembly 1 comprises a three-way control valve 11, a slag-collecting cleaning water pipe 12 and a drain pipe 13. The three-way control valve 11 has a valve cavity, a water inlet, a first water outlet and a second water outlet, and the valve cavity is in communication with the water inlet, the first water outlet and the second water outlet respectively. In the embodiment, the water inlet of the three-way control valve 11 is in communication with the drain port 221 of the water collecting cavity 21 through the drain pump 4, the first water outlet of the three-way control valve 11 is in communication with the sewer through the drain pipe 13, and the second water outlet of the three-way control valve 11 is in communication with the water inlet channel 511 through the slag-collecting cleaning water pipe 12. Thus, by switching different water paths through the three-way control valve 11, the water in the water cup assembly 2 can be supplied to the self-cleaning spray arm 5 through the self-cleaning water supply assembly 1, or the water in the water cup assembly 2 can be discharged in time to realize the drain function of the dishwasher.

[0050] Reference Figures 7-11 Further, a self-cleaning water inlet 223 is arranged at the bottom of the water cup assembly 2 corresponding to the position of the water collecting cavity 21, and a hollow connecting column 311 is arranged at the bottom of the filter assembly 3 corresponding to the position of the self-cleaning water inlet 223, the upper and lower ends of the hollow connecting column 311 are connected with the lower end of the fixed column 51 and the self-cleaning water inlet 223 respectively, and the water outlet end of the slag-collecting cleaning water pipe 12 of the self-cleaning water supply assembly 1 is in communication with the water inlet channel 511 through the self-cleaning water inlet 223 and the hollow connecting column 311 in sequence, so as to supply water to the self-cleaning spray arm 5 from the bottom of the water cup assembly 2.

[0051] In the embodiment, the filter assembly 3 comprises a micro filter 31, a sealing member 32 and a lower sealing ring 33. The micro filter 31 is arranged in the water collecting cavity 21 and has an upwardly open slag-collecting cavity. A hollow connecting column 311 is arranged at the center of the bottom of the micro filter 31, and a plurality of openings are arranged at the bottom of the micro filter 31 and located outside the periphery of the hollow connecting column 311, each of the openings being in communication with the drain port 221 of the water cup assembly 2. A lower protective member 55 is arranged between the top of the hollow connecting column 311 and the bottom of the spray arm body 52, so that the bottom of the spray arm body 52 is in flexible contact with the top of the hollow connecting column 311; and / or the sealing member 32 is arranged between the hollow connecting column 311 and the lower end of the fixed column 51, so that the hollow connecting column 311 is sealingly connected with the fixed column 51 to prevent water leakage at the connection between the two. The lower sealing ring 33 is arranged between the periphery of the bottom of the micro filter 31 and the bottom surface of the water collecting cavity 21, so as to prevent food residues from entering the water collecting cavity 21 from the matching part. The self-cleaning spray arm 5 is arranged in the micro filter 31 and connected with the hollow connecting column 311.

[0052] Reference Figures 9-11, further, the dishwasher further comprises a drainage pump 4, the drainage pump 4 comprises a pump shell 41, an impeller 42, a slag cutter 43 and a driver 44, the pump shell 41 is provided with a pump cavity 411, a drainage inlet 412 and a drainage outlet 413, the pump cavity 411 is communicated with the drainage port 221 through the drainage inlet 412, and the pump cavity 411 is communicated with the sewage pipe or the residue collecting and cleaning water pipe 12 of the self-cleaning water supply assembly 1 through the drainage outlet. The impeller 42 and the slag cutter 43 are rotatably arranged in the pump cavity 411, and the driver 44 is arranged at the top of the pump shell 41, and the output ends of the driver 44 are connected with the impeller 42 and the slag cutter 43 respectively, so as to drive the impeller 42 and the slag cutter 43 to rotate, so that the drainage and the slag cutting can be simultaneously performed. Therefore, the drainage pump 4 has the dual functions of drainage and slag cutting, the slag cutting and drainage integrated design in the pump shell 41 is shared, the residue draining structure of the dishwasher is further optimized and improved, the residue draining function of the dishwasher is improved, and the technical problems that the food residue cannot be automatically drained and the anti-foreign matter ability is poor in the existing dishwasher filtering system are solved.

[0053] The working principle of the dishwasher of the embodiment will be described below in combination with Figures 9-11 The working principle of the dishwasher of the embodiment will be described below in combination with

[0054] Referring to Figures 9-11 The drainage function control method of the dishwasher: mainly controlled by the switching structure of the three-way control valve 11, when the dishwasher enters the drainage stage, the first water outlet is opened and the second water outlet is closed through the three-way control valve 11, at this time, the drainage water path is conducted, the driver 44 in the drainage pump 4 works, and the drainage impeller 42 and the slag cutter 43 work at the same time, at this time, the dishwasher can not only realize the drainage function, but also realize the slag cutting function, and the drainage and residue draining capacity of the dishwasher is strengthened.

[0055] The self-cleaning function control method of the dishwasher: mainly controlled by the switching structure of the three-way control valve 11, when the dishwasher enters the final drying end stage, the self-cleaning spray arm 5 starts to work. The first water outlet is closed and the second water outlet is opened through the three-way control valve 11, at this time, the self-cleaning water path is conducted, the driver 44 in the drainage pump 4 works, and the drainage impeller 42 and the slag cutter 43 work at the same time, so as to supply water in the water cup assembly 2 to the self-cleaning spray arm 5, and the spray arm body 52 rotates and washes the filtering assembly 3 in 360 degrees under the action of water flow; in the washing process, since the slag cutter 43 also rotates and works, not only the automatic cleaning function of the residue collecting and filtering system can be realized, but also the slag cutting function can be realized. After the dishwasher is washed, the water path is switched by the three-way control valve 11, and the drainage function is started.

[0056] Therefore, the automatic cleaning function of the residue collecting and filtering system is realized before the program ends, so that the residue collecting and filtering system does not need to be taken out and washed separately, the cleaning-free residue collecting and filtering system is basically solved, the residue problem is solved, and the peculiar smell of the dishwasher cavity is prevented.

[0057] The above merely describes some embodiments of the present application. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. A dishwasher, characterized in that The utility model relates to a self-cleaning water cup assembly, comprising: a water cup assembly (2) provided with a water collecting cavity (21) with an upward opening, a water inlet and a water outlet (221); a filter assembly (3) detachably installed in the water collecting cavity (21); a self-cleaning spray arm provided in the filter assembly (3), wherein a spray arm body (52) is detachably connected with the filter assembly (3) through a fixing column (51); and a self-cleaning water supply assembly (1), wherein a water inlet channel (511) of the self-cleaning spray arm is connected with the water collecting cavity (21) or a tap water through the self-cleaning water supply assembly (1). The fixing column (51) is provided with a water inlet channel (511) with a downward or upward opening, and a plurality of water passing holes (512) are circumferentially spaced apart on the outer side wall of the fixing column (51), wherein the plurality of water passing holes (512) are respectively connected with the water inlet channel (511). The spray arm body (52) is rotatably sleeved on the outside of the fixing column (51) and is provided with a plurality of spray holes (5201), and a water flow channel (53) is formed between the spray arm body (52) and the fixing column (51), wherein the water flow channel (53) is respectively connected with the spray holes (5201) and the water passing holes (512). The water pump (4) comprises a pump housing (41), an impeller (42), a slag breaking knife (43) and a driver (44), the pump housing (41) is provided with a pump cavity (411), a water outlet (412) and a water outlet, the pump cavity (411) is connected with the water outlet (221) through the water inlet (412), the pump cavity (411) is connected with a sewer or a water inlet end of the self-cleaning water supply assembly (1) through the water outlet, the impeller (42) and the slag breaking knife (43) are rotatably arranged in the pump cavity (411), and the driver (44) is arranged on the pump housing (41) and connected with the impeller (42) and the slag breaking knife (43) through an output end.

2. A dishwasher according to claim 1, characterized in that The spray arm body (52) comprises a sleeve body (521), the lower end of the sleeve body (521) is open, the upper end of the sleeve body (521) is open or closed, the sleeve body (521) is rotatably sleeved on the outside of the fixing column (51), a plurality of the spray holes (5201) are circumferentially spaced apart on the outer side wall of the sleeve body (521), and a water flow channel (53) is formed between the sleeve body (521) and the fixing column (51).

3. A dishwasher according to claim 2, characterised in that At least two connecting arms (522) extending outward are protruded on the outer side wall of the sleeve body (521) in a circumferential direction, and at least one of the spray holes (5201) is arranged on the connecting arm (522).

4. The dishwasher according to claim 1, characterized in that A limiting portion (513) extending outward is protruded on the top of the fixing column (51), the spray arm body (52) is sleeved on the outside of the fixing column (51) and located below the limiting portion (513); and / or A connecting portion (514) extending downward is arranged on the bottom of the fixing column (51), and the bottom of the spray arm body (52) extends downward to the outer upper end of the connecting portion (514).

5. A dishwasher according to claim 4, characterised in that The limiting part (513) is arranged above the spray arm body (52), an anti-skid part (5131) is arranged on the peripheral wall of the limiting part (513), and / or an upper protection member (54) is arranged on the outer sleeve of the lower end of the fixed column (51) between the limiting part (513) and the spray arm body (52).

6. The dishwasher according to claim 4, characterized in that A lower protection member (55) is arranged on the outer sleeve of the connecting part (514), and the lower protection member (55) is in abutment with the bottom of the spray arm body (52).

7. The dishwasher according to claim 1, characterized in that A self-cleaning water inlet (223) is arranged at the bottom of the water cup assembly (2) corresponding to the water collecting cavity (21), a hollow connecting column (311) is arranged at the bottom of the filter assembly (3) corresponding to the self-cleaning water inlet (223), the upper and lower ends of the hollow connecting column (311) are connected with the lower end of the fixed column (51) and the self-cleaning water inlet (223) respectively, and the water outlet end of the self-cleaning water supply assembly (1) is in communication with the water inlet channel (511) through the self-cleaning water inlet (223) and the hollow connecting column (311) in sequence.

8. A dishwasher according to claim 7, characterised in that A lower protection member (55) is arranged between the top of the hollow connecting column (311) and the bottom of the spray arm body (52), and / or a sealing member (32) is arranged between the hollow connecting column (311) and the lower end of the fixed column (51).

9. The dishwasher according to claim 1 or 7, characterized in that The self-cleaning water supply assembly (1) comprises a three-way control valve (11) and a slag collecting and cleaning water pipe (12), the water inlet of the three-way control valve (11) is in communication with the water collecting cavity (21), the first water outlet of the three-way control valve (11) is in communication with a sewer, and the second water outlet of the three-way control valve (11) is in communication with the water inlet channel (511) through the slag collecting and cleaning water pipe (12).

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