CN111603120B

CN111603120B - A dishwasher

Info

Publication number: CN111603120B
Application number: CN201910135260.2A
Authority: CN
Inventors: 王金铜; 程宝珍; 杨林; 王科; 董媛媛
Original assignee: Qingdao Haier Dishwasher Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Dishwasher Co Ltd; Haier Smart Home Co Ltd
Priority date: 2019-02-22
Filing date: 2019-02-22
Publication date: 2025-05-16
Anticipated expiration: 2039-02-22
Also published as: CN111603120A

Abstract

The invention belongs to the technical field of washing equipment, and particularly relates to a dish washer. The dish washer comprises an inner container, a water tank, an opening, a water tank and a water tank, wherein a spraying structure is arranged in the inner container to spray and clean tableware, the water tank is communicated with the inner container, the bottom of the inner container is provided with the opening, the water tank is arranged below the outer bottom wall of the inner container corresponding to the opening, and the end face, connected with the opening, of the water tank is provided with an oval or elliptical-like cross section. The water tank of the dish washer has an elliptic or elliptic-like cross section, so that the space below the water tank can be saved, other parts can be conveniently installed, materials can be saved, and the cost is reduced. In addition, the waterway of the dish washer is arranged in the water tank, so that potential safety hazards caused by water leakage and dripping on electric elements are avoided.

Description

Dish washer

Technical Field

The invention belongs to the technical field of washing equipment, and particularly relates to a dish washer.

Background

The dish washer includes basin and inner bag, and the basin is the working of plastics, the inner bag is the sheet metal component, and at the bottom of basin and the inner bag is by screw fastening connection to in order to prevent leaking, basin and inner bag set up generally to set up to regular shape, for example generally set up to circular, this kind of structure is difficult to realize the water route of built-in dish washer under the prerequisite of not expanding dish washer's whole frame. In addition, waterways of the prior art dish washers are generally arranged outside the sink, and if water leakage occurs, the waterways are sputtered onto electrical components, which can cause potential safety hazards.

The present invention has been made in order to solve at least one of the above-mentioned technical problems.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a dish washer.

In order to solve the technical problems, the invention adopts the basic conception of the technical scheme that:

A dishwasher, comprising:

The inner container is internally provided with a spraying structure for spraying and cleaning tableware;

A water tank communicated with the inner container;

The bottom of the inner container is provided with an opening, the water tank is arranged below the outer bottom wall of the inner container corresponding to the opening, and the end face of the water tank connected with the opening is provided with an elliptic or elliptic-like cross section.

As one implementation mode, the opening at the bottom of the liner is provided with a mounting boss extending downwards along the circumferential direction, and the end face of the mounting boss connected with the water tank is provided with a matched elliptic or elliptic-like cross section and is connected integrally.

As an embodiment, a sealing ring is arranged between the end surfaces of the water tank connected with the opening, and the sealing ring has an elliptic or quasi-elliptic cross section matched with the end surfaces of the water tank connected with the opening.

As one implementation mode, the end faces of the water tank, which are connected with the opening, are respectively provided with mounting holes, and the screws are sequentially connected with the mounting holes on the end face of the water tank, the sealing ring and the mounting holes on the end face of the opening, so that the water tank and the liner are connected into a whole.

As an embodiment, the oval or elliptical-like cross section is an axisymmetric structure.

As one embodiment, the oval or ellipse-like shape includes a first arc having the same curvature and a second arc connected to both ends of the first arc and having an increasing curvature.

As one implementation mode, the waterway of the dish washer is arranged in the inner container or the water tank or in the connecting part of the inner container or the water tank;

Preferably, the dish washer comprises a washing pump, the washing pump is provided with a water inlet and a water outlet, the water tank is provided with a water inlet of the washing pump, the water inlet of the washing pump is connected with the water inlet of the washing pump, and the water outlet of the washing pump is connected with the spraying structure through a waterway arranged in the liner.

As one embodiment, the upper part of the water tank is provided with a switching structure for selectively installing the water diversion valve.

The dish washer comprises a drainage pump, wherein the drainage pump is provided with a pump body, an impeller and a motor for driving the impeller to rotate, and the pump body is provided with a water inlet and a second water outlet;

The first water outlet is connected with the water inlet of the pump body so as to discharge water to be discharged in the water tank from the second water outlet under the action of the impeller;

The central shaft of the impeller is arranged at a position higher than the central shaft of the first water outlet by a set height, and a drainage structure is arranged between the first water outlet and the water inlet of the pump body so as to guide water to be drained to flow towards the central shaft of the impeller.

As one implementation mode, a water flow channel is arranged in the drainage structure, and the water flow channel guides water to be drained to flow upwards from the first water outlet towards the central shaft direction of the impeller;

Preferably, the drainage structure is detachably arranged between the first water outlet and the water inlet of the pump body.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects:

The water tank of the dish washer has an elliptic or elliptic-like cross section, so that the space below the water tank can be saved, other parts can be conveniently installed, materials can be saved, and the cost is reduced. In addition, the waterway of the dish washer is arranged in the water tank, so that potential safety hazards caused by water leakage and dripping on electric elements are avoided.

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:

FIG. 1 is a schematic view of a dishwasher according to the present invention;

FIG. 2 is a schematic view of a sump structure in a dishwasher according to the present invention;

FIG. 3 is a schematic view of a sump structure in a dishwasher according to the present invention;

FIG. 4 is a schematic structural view of a drain structure in a dishwasher according to the present invention;

FIG. 5 is a schematic structural view of a drain structure in a dishwasher according to the present invention;

FIG. 6 is a schematic structural view of a drain structure in a dishwasher according to the present invention;

FIG. 7 is a schematic view of a partial structure of a dishwasher according to the present invention;

FIG. 8 is a partial schematic view of a dishwasher according to the present invention;

FIG. 9 is a schematic view of a partial structure of a dishwasher according to the present invention;

FIG. 10 is a schematic view of a portion of another dishwasher according to the present invention;

FIG. 11 is a top view of the partial structure of FIG. 10;

FIG. 12 is an exploded view of the structure of FIG. 10;

FIG. 13 is a schematic view showing the construction of a tub portion of a third dishwasher according to the present invention;

FIG. 14 is a top view of FIG. 13;

Fig. 15 is a schematic view of the water path arrangement of the dishwasher of the present invention.

The drawing is marked with 1, a drainage pump, 11, an impeller, 2, a water tank, 21, a first water outlet, 22, a groove, 24, a switching structure, 3, a drainage structure, 31, a plugging piece, 311, a notch, 32, a side wall, 33, a bottom wall, 34, a water diversion rib, 4, an installation opening, 5, a third water outlet, 6, a blocking rib, 7, an inner container, 8, a sealing ring, 9, a waterway, 10, a water diversion valve installation part, 12 and a spraying structure.

It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, or indirectly connected via an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Example 1

As shown in fig. 10 to 15, a dishwasher, comprising:

a spraying structure 12 is arranged in the inner container 7 to spray and clean tableware;

A water tank 2 communicated with the inner container 7;

The bottom of the inner container 7 is provided with an opening, the water tank 2 is arranged below the outer bottom wall of the inner container 7 corresponding to the opening, and the end face of the water tank 2 connected with the opening is provided with an elliptic or elliptic-like cross section.

As an embodiment, as shown in fig. 12, an opening at the bottom of the liner 7 extends downward along the circumferential direction to provide a mounting boss, and the end surface of the mounting boss connected to the water tank 2 is provided with a matching elliptical or elliptical-like cross section and integrally connected.

A sealing ring 8 is arranged between the end surfaces of the water tank 2 connected with the opening, and the sealing ring 8 is provided with an elliptic or quasi-elliptic cross section matched with the end surfaces of the water tank 2 connected with the opening.

The end faces of the water tank 2 connected with the opening are respectively provided with mounting holes, and screws are sequentially connected with the mounting holes on the end face of the water tank 2, the sealing ring 8 and the mounting holes on the end face of the opening to connect the water tank 2 with the inner container 7 into a whole.

As shown in fig. 10, 11, 13 and 14, the oval or elliptical-like cross section is an axisymmetric structure.

Preferably, the ellipse or ellipse-like shape includes a first arc having the same curvature and a second arc connected to both ends of the first arc and having an increasing curvature.

As shown in fig. 10-14, the sink 2 has a cross-sectional configuration of a duck egg shape.

The structure of the water tank 2 can ensure the arrangement of a filtering system and an internal waterway of the dish washer, and can save the space at the lower part of the water tank 2, so that other elements of the dish washer can be conveniently installed, and the light and thin dish washer can be realized. The duck egg-shaped water tank 2 can also save materials and is attractive.

As shown in fig. 15, the waterway 9 of the dish washer is built in the inner container or the water tank 2 or in the connection part of the inner container or the water tank 2.

As an embodiment, the dishwasher comprises a washing pump, the washing pump is provided with a water inlet and a water outlet, the water tank 2 is provided with a water inlet of the washing pump, the water inlet of the washing pump is connected with the water inlet of the washing pump, and the water outlet of the washing pump is connected with a spraying structure through a waterway 9 arranged in the liner 7.

Preferably, the upper part of the water tank 2 is provided with a switching structure 24 for selectively installing the water diversion valve, and the switching structure 24 can easily realize the conversion between different types of dish washers with the water diversion valve and dish washers without the water diversion valve, so that a set of dies can be used for multiple purposes, and the die cost is saved.

For example, fig. 10, 11 and 15 show a dishwasher without a water diversion valve, specifically, as shown in fig. 15, the switching structure 24 includes two through-hole columns disposed at the upper portion of the water tank 2, one ends of the two through-hole columns are respectively connected with the water outlet of the washing pump, and the other ends of the two through-hole columns are respectively connected with the spray structures 12 disposed at different positions in the inner container 7. For example, in fig. 15, the lower ends of two through-hole columns are respectively connected with the water outlet of the washing pump through hoses, the upper ends of the right through-hole columns are communicated with the spray structure 12 arranged at the bottom of the liner 7, and the upper ends of the left through-hole columns are connected with the spray structure 12 above or in the middle of the liner 7 through hoses.

Fig. 13 and 14 show a dishwasher structure with a diverter valve, the switching structure 24 includes a diverter valve mounting portion 10, specifically a mounting through hole, after the diverter valve is mounted, the diverter valve can be selectively sprayed to different areas, and the working principle and structure of the diverter valve are similar to those of the prior art, and are not repeated.

The water tank 2 is provided with a first water outlet 21, the dish washer also comprises a drainage pump 1, the drainage pump 1 is provided with a pump body, an impeller 11 and a motor for driving the impeller 11 to rotate, and the pump body is provided with a water inlet and a second water outlet;

The first water outlet 21 is connected with a water inlet of the pump body so as to discharge water to be discharged in the water tank 2 from the second water outlet under the action of the impeller 11;

The central axis of the impeller 11 is arranged at a position higher than the central axis of the first water outlet 21 by a set height, and a drainage structure 3 is arranged between the first water outlet 21 and the water inlet of the pump body so as to guide water to be drained to flow towards the central axis direction of the impeller 11.

A water flow channel is arranged in the drainage structure 3, and guides water to be drained to flow upwards from the first water outlet 21 towards the central shaft direction of the impeller 11;

preferably, the drainage structure 3 is detachably arranged between the first water outlet 21 and the water inlet of the pump body.

Example 2

This embodiment relates to another dishwasher, the structure of which can be combined with embodiment 1 to obtain other dishwashers.

A dishwasher, comprising a liner 7 and a sump 2, as shown in figures 1-9, the sump 2 being provided with a first water outlet 21;

the drainage pump 1 is provided with a pump body, an impeller 11 and a motor for driving the impeller 11 to rotate, and the pump body is provided with a water inlet and a second water outlet;

As an embodiment, the water tank 2 is detachably arranged at the bottom of the inner container 7, and the part of the inner container 7 connected with the water tank 2 is recessed downwards and provided with an opening.

As an embodiment, the end surfaces of the water tank 2 and the inner container 7 at the connecting portion are respectively provided with mutually matched elliptical or elliptical-like cross sections.

As an embodiment, the cross section of the ellipse or the quasi-ellipse is of a axisymmetric structure.

As an embodiment, the water channel 9 for water intake and drainage of the dishwasher is built in the inner container 7 or the water tank 2, or is built in the connecting part of the inner container 7 or the water tank 2.

As an embodiment, the drainage structure 3 is internally provided with a water flow channel which guides the water to be drained to flow upwards from the first water outlet 21 towards the central axis of the impeller 11.

Preferably, the drainage structure 3 is removably arranged between the first water outlet 21 and the water inlet of the pump body.

As an embodiment, the first water outlet 21 is provided with a mounting opening 4 along the front of the water flow direction, the drainage structure 3 is embedded in the mounting opening 4, and a third water outlet 5 positioned above the water flow channel is formed with the upper part of the mounting opening 4, and the central axis of the third water outlet 5 coincides with the central axis of the impeller 11.

As an embodiment, the drainage structure 3 includes a blocking member 31, the blocking member 31 blocks a lower portion of the mounting opening 4 opposite to the first water outlet 21, a downward concave opening 311 is formed at an upper portion of the blocking member 31, and the opening 311 and an upper portion of the mounting opening 4 form a third water outlet 5 communicated with a water flow channel inside the drainage structure 3.

As an embodiment, two opposite sides of the plugging member 31 are extended and provided with parallel side walls 32, a bottom wall 33 is provided at the bottom between the plugging member 31 and the two side walls 32, and the side walls 32 and the bottom wall 33 extend into the mounting opening 4 and are respectively attached to the inner side wall or the bottom wall of the mounting opening 4, and the plugging member 31 is flush with the outer end surface of the mounting opening 4.

As an embodiment, two water diversion ribs 34 parallel to the side wall 32 are arranged on the bottom wall 33, a gap is arranged between the two water diversion ribs 34, and the water diversion ribs 34 have arc-shaped upper end surfaces.

As an embodiment, the first water outlet 21 is provided with a plurality of ribs 6 perpendicular to the water flow direction, the ribs 6 are arranged at a position close to the inner wall of the water tank 2, and the drainage structure 3 is arranged in front of the ribs 6 along the water flow direction.

As an embodiment, the bottom wall of the water tank 2 is provided with a groove 22 at a position close to the first water outlet 21, and one side of the groove 22 close to the first water outlet 21 is lower than the other side opposite to the first water outlet 21.

The installation position of the draining pump of the dish washer is higher than the water outlet of the water tank, and the space below the water tank is compressed, so that the capacity of the washing cavity is increased, and the dish washer is light and thin. In addition, the structure of the drainage system is simple and smooth drainage of the dish washer can be realized.

Example 3

This embodiment relates to another dishwasher, the structure of which can be combined with the above-described embodiments to obtain other dishwashers.

A dishwasher, comprising a liner 7 and a sump 2, as shown in fig. 1, the sump 2 being provided with a first water outlet 21;

The water tank 2 is detachably arranged at the bottom of the inner container 7, and the part of the inner container 7 connected with the water tank 2 is downwards sunken and provided with an opening. The end surfaces of the connecting part of the water tank 2 and the inner container 7 are respectively provided with oval or elliptical-like cross sections which are matched with each other.

As a specific implementation manner, the end surfaces of the connecting part of the water tank 2 and the inner container 7 are respectively provided with a duck egg-shaped structure which is matched with each other.

The water channel 9 for water intake and drainage of the dish washer is arranged in the inner container 7 or the water tank 2 or is arranged at the connecting position of the inner container 7 or the water tank 2.

The water tank 2 with the oval or elliptical-like cross section is arranged on the end surface connected with the liner 7, so that the water inlet and outlet waterway 9 and the filtering system of the dish washer are conveniently arranged, and the structure below the water tank 2 is conveniently arranged.

In order to smoothly drain water, the impeller 11 is generally disposed at the same height as the water outlet of the water tank 2 in the drainage system of the conventional dish washer, but the disadvantage of this design is that the position of the drainage pump cannot be flexibly set according to the capacity of the dish washer, so as to reduce the space below the washing chamber, and thus, the dish washer is inconvenient to be thinned.

The drainage structure 3 is detachably disposed between the first water outlet 21 and the water inlet of the pump body, and the detachable manner is embedded, screwed, clamped, etc.

The drainage structure 3 is internally provided with a water flow channel which guides water to be drained to flow upwards from the first water outlet 21 towards the central axis direction of the impeller 11.

As shown in fig. 3, the first water outlet 21 is provided with a mounting opening 4 along the front of the water flow direction, the drainage structure 3 is embedded into the mounting opening 4, and forms a third water outlet 5 above the water flow channel with the upper part of the mounting opening 4, and the central axis of the third water outlet 5 coincides with the central axis of the impeller 11.

As an embodiment, the first water outlet 21 of the water tank 2 is provided with an impeller mounting cavity extending outwards, the impeller mounting cavity is provided with an inner wall surface at a first end close to the first water outlet 21, the mounting opening 4 is provided on an end wall surface of the first end, and a second end of the impeller mounting cavity is connected with a casing of the drain pump 1 to connect the drain pump 1 and the water tank 2 integrally. The drainage structure 3 comprises a blocking piece 31, the blocking piece 31 blocks the lower part of the installation opening 4 opposite to the first water outlet 21, a notch 311 recessed downwards is formed in the upper part of the blocking piece 31, and a third water outlet 5 communicated with a water flow channel in the drainage structure 3 is formed in the upper part of the notch 311 and the upper part of the installation opening 4.

The opposite sides of the plugging piece 31 extend to be provided with parallel side walls 32, the bottom between the plugging piece 31 and the two side walls 32 is provided with a bottom wall 33, and the side walls 32 and the bottom wall 33 extend into the mounting opening 4 and are respectively attached to the inner side wall or the bottom wall of the mounting opening 4, and the plugging piece 31 is flush with the outer end face of the mounting opening 4.

As shown in fig. 3 and 8, the lower portion of the mounting port 4 is opposed to and communicates with the first water outlet 21, and the upper portion is opposed to the outer peripheral wall of the water tank 2 above the first water outlet 21. The upper part of the mounting opening 4 is of a semicircular structure with a downward opening, and the lower part is of a semi-elliptic structure. As shown in fig. 4 and 5, the sealing member 31 is arranged as a semi-elliptical sealing surface corresponding to the lower part of the mounting opening 4, the upper end of the sealing surface is provided with a semicircular opening 311 recessed downward, the opening 311 is matched with the upper part of the mounting opening 4 to form a circular third water outlet 5, the water to be drained from the first water outlet 21 of the water tank 2 flows to the third water outlet 5 through a water flow channel in the drainage structure 3, and enters the inside of the drainage pump 1 under the action of vacuum generated by rotation of the impeller 11, and is finally drained from a second water outlet arranged on the drainage pump 1.

Preferably, as shown in fig. 4 to 6, two water diversion ribs 34 parallel to the side wall 32 are arranged on the bottom wall 33 of the drainage structure 3, a gap is arranged between the two water diversion ribs 34, and an end surface with gradually reduced height from the plugging piece 31 to the direction of the first water outlet 21 is arranged between the gaps and takes a slide shape so as to facilitate water flow discharge. The water diversion rib 34 has an arc-shaped upper end surface, as shown in fig. 5, the upper end surface of the water diversion rib 34 is set as a horizontal end surface at a position close to the plugging member 31, and a concave arc-shaped end surface is arranged to extend downwards from the end of the horizontal end surface.

As shown in fig. 2, 7 and 9, the first water outlet 21 is provided with a plurality of ribs 6 perpendicular to the water flow direction, the ribs 6 are arranged at a position close to the inner wall of the water tank 2, and the drainage structure 3 is arranged in front of the ribs 6 along the water flow direction.

The two water diversion ribs 34 are respectively bent towards the gap parts at the tail ends close to the first water outlet 21, and one baffle rib 6 of the first water outlet 21 is clamped in the gap between the bent parts, so that the drainage structure 3 and the water tank 2 are stably installed without using separate installation elements, and the installation is more reliable and convenient.

As shown in fig. 2 and 9, the bottom wall of the water tank 2 is provided with a groove 22 at a position close to the first water outlet 21, and one side of the groove 22 close to the first water outlet 21 is lower than the other side opposite to the first water outlet 21, so that water is prevented from remaining in the water tank 2.

The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any and all simple modifications, equivalent variations and adaptations of the embodiments described above, which are within the scope of the invention, may be made by those skilled in the art without departing from the scope of the invention.

Claims

1. A dishwasher, comprising:

a liner (7) with a spray structure (12) inside to spray and clean tableware;

the water tank (2) is communicated with the inner container (7);

The method is characterized in that:

the bottom of the inner container (7) is provided with an opening, the water tank (2) is arranged below the outer bottom wall of the inner container (7) corresponding to the opening, and the end surface of the water tank (2) connected with the opening is provided with an elliptic or elliptic-like cross section;

The water tank (2) is also provided with a first water outlet (21), a mounting opening (4) is arranged in front of the water flow direction, and a drainage structure (3) is embedded in the mounting opening (4);

The drainage structure (3) comprises a blocking piece (31), the lower part of the installation opening (4) opposite to the first water outlet (21) is blocked, a notch (311) which is sunken downwards is formed in the upper part of the blocking piece (31), and a third water outlet (5) communicated with a water flow channel in the drainage structure (3) is formed in the upper part of the notch (311) and the upper part of the installation opening (4);

The water pump (1), water pump (1) are equipped with the pump body, impeller (11) and drive impeller (11) pivoted motor, water pump (1) and first delivery port (21) intercommunication, the center pin of third delivery port (5) coincides with the center pin of impeller (11) of water pump (1), shutoff piece (31) shutoff mounting hole (4) and the relative below part of first delivery port (21).

2. The dish washer according to claim 1, characterized in that the opening at the bottom of the inner container (7) is provided with a mounting boss extending downwards along the circumferential direction, and the end surface of the mounting boss connected with the water tank (2) is provided with a matched elliptic or elliptic-like cross section and is connected into a whole.

3. Dishwasher according to claim 1 or 2, characterized in that a sealing ring (8) is arranged between the end surfaces of the sump (2) connected to the opening, said sealing ring (8) having an oval or elliptical-like cross section matching the end surfaces of the sump (2) connected to the opening.

4. A dishwasher according to claim 3, characterized in that the end surfaces of the water tank (2) connected with the opening are respectively provided with mounting holes, and screws are sequentially connected with the mounting holes on the end surfaces of the water tank (2), the sealing ring (8) and the mounting holes on the end surfaces of the opening to integrally connect the water tank (2) with the inner container (7).

5. The dishwasher of claim 4, wherein the oval or elliptical-like cross-section is of axisymmetric configuration.

6. The dishwasher of claim 5, wherein the oval or elliptical shape comprises a first arc having the same curvature and a second arc connected to both ends of the first arc and having an increasing curvature.

7. The dishwasher of any one of claims 1-6, characterized in that the waterway (9) of the dishwasher is built into the liner or tub (2) or into the connection of the liner or tub (2).

8. The dishwasher of claim 7, wherein the dishwasher comprises a washing pump, the washing pump is provided with a water inlet and a water outlet, the water tank (2) is provided with a water inlet of the washing pump, the water inlet of the washing pump is connected with the water inlet of the washing pump, and the water outlet of the washing pump is connected with the spraying structure (12) through a waterway (9) arranged in the liner (7).

9. Dishwasher according to claim 8, characterized in that the upper part of the sump (2) is provided with a switching structure (24) for the optional installation of a diverter valve.

10. The dishwasher of claim 8 or 9, wherein the pump body is provided with a water inlet and a second water outlet;

The first water outlet (21) is connected with the water inlet of the pump body so as to discharge water to be discharged in the water tank (2) from the second water outlet under the action of the impeller (11);

The central shaft of the impeller (11) is arranged at a position higher than the central shaft of the first water outlet (21) by a set height, and the drainage structure (3) is arranged between the first water outlet (21) and the water inlet of the pump body so as to guide water to be discharged to flow towards the central shaft direction of the impeller (11).

11. Dishwasher according to claim 10, characterized in that the water flow channel inside the drainage structure (3) directs the water to be drained from the first water outlet (21) upwards towards the central axis of the impeller (11).

12. Dishwasher according to claim 11, characterized in that the drainage structure (3) is detachably arranged between the first water outlet (21) and the water inlet of the pump body.