CN106377211B

CN106377211B - Dish-washing machine

Info

Publication number: CN106377211B
Application number: CN201610991353.1A
Authority: CN
Inventors: 黄江远
Original assignee: Midea Group Co Ltd; Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2016-11-10
Filing date: 2016-11-10
Publication date: 2023-07-21
Anticipated expiration: 2036-11-10
Also published as: CN106377211A

Abstract

The invention discloses a dish washer. The dishwasher includes: the door body is arranged on the box body; the area washing apparatus is provided on an inner side surface of the door body, the area washing apparatus being adjacent to a corner of the door body, the area washing apparatus comprising: the spray arm assembly, connecting water pipe and water pump, connecting water pipe is used for connecting water pump and spray arm assembly. According to the dish washing machine provided by the invention, the washing effect of the dishes in the lower bowl basket can be effectively improved, so that the washing performance of the dish washing machine is improved.

Description

Dish-washing machine

Technical Field

The invention relates to the technical field of cleaning appliances, in particular to a dish washer.

Background

At present, a rotary lower spray arm is adopted in the dish washing machine, the movement track of the rotary lower spray arm is a circular plane, and the dish washing machine box body and the lower bowl basket are of square structures, so that the degree of cleaning of tableware positioned at four corners of the lower bowl basket is inevitably limited; and the lower bowl basket is used for placing tableware with various different functions, the surface pollutants are different, and different types of pollutants have great difference in cleaning difficulty. Therefore, it is difficult to ensure the four corner dishes of the lower basket and the cleaning effect of the polluted and uneasy-to-clean tableware by the single rotary lower spray arm at present, thereby influencing the overall cleaning performance of the dish washer.

Disclosure of Invention

The present invention aims to solve, at least to some extent, one of the above technical problems in the prior art. Therefore, the invention aims to provide a dish washer which can solve the problem that tableware at the corners of a lower bowl basket are difficult to clean.

The dishwasher according to the present invention includes: the door body is arranged on the box body; and a zone washing device provided on an inner side surface of the door body, the zone washing device being adjacent to a corner of the door body, and the zone washing device comprising: the spray arm assembly, connecting water pipe and water pump, connecting water pipe is used for connecting the water pump with the spray arm assembly.

According to the dish washing machine, the regional washing device is arranged, so that the problem that tableware at the corners of the lower bowl basket is difficult to wash can be effectively solved, and the problem of secondary pollution caused by pollutants on the tableware of the lower bowl basket can be solved, thereby achieving the aim of effectively improving the washing effect of the tableware of the lower bowl basket and finally achieving the aim of improving the washing performance of the dish washing machine.

In some preferred embodiments of the present invention, the spray arm assembly comprises: the fixed spray arm is positioned between the door body and the rotary spray arm, and spray holes are respectively formed in the fixed spray arm and the rotary spray arm.

Further, the fixed spray arm includes: the fixed spray arm comprises a fixed spray arm body, an outer pipe section and an inner pipe section, wherein the outer pipe section and the inner pipe section are respectively arranged on two side surfaces of the fixed spray arm body, the rotary spray arm is rotatably arranged on the outer pipe section, the outer pipe section is communicated with the fixed spray arm body and the rotary spray arm, and the inner pipe section stretches into the door body and is connected with the connecting water pipe inside the door body.

Preferably, the inner pipe section is provided with a screw portion on an outer circumferential surface thereof, and the dishwasher further comprises: and the locking nut is in threaded fit with the threaded part on the inner pipe section so as to fasten the fixed spray arm on the door body.

Preferably, a first sealing ring is arranged between the locking nut and the door body.

In some preferred embodiments of the present invention, the door body includes: the inner door body is arranged on the inner side face of the outer door body, the area washing device is arranged on the side face, facing the inside of the box body, of the inner door body, and the inner pipe section extends into a space between the outer door body and the inner door body.

Preferably, a flange is provided on the outer peripheral surface of the outer pipe section, and the rotary spray arm includes: the rotary spray arm comprises a rotary spray arm body and a clamping part, wherein the clamping part is clamped on the flange and can rotate relative to the flange.

Preferably, a second sealing ring is arranged between the clamping part and the fixed spray arm body.

In some preferred embodiments of the invention, the clamping portion comprises:

a sleeve part sleeved on the outer pipe section, wherein the free end of the sleeve part is abutted against the first side surface of the flange;

a clamp arm, the clamp arm being "U" shaped and comprising: the connecting wall is used for connecting the first side wall with the second side wall, and the second side wall abuts against a second side face, deviating from the first side face, of the flange.

Further, the second sidewall is wedge-shaped and the wall thickness decreases in a radial direction from the outside to the inside.

Preferably, the clamping arms are a plurality and symmetrically distributed about the sleeve portion.

In some preferred embodiments of the present invention, the fixed spray arm is disposed parallel to the door body, and the rotation axis of the rotary spray arm is orthogonal to the door body.

In some preferred embodiments of the invention, the zone wash device is disposed adjacent the lower left or lower right corner of the door body.

In some preferred embodiments of the invention, the connecting water pipe is a hose.

Preferably, the door body is connected with the box body through a hollow rotating shaft, and the connecting water pipe penetrates through the hollow rotating shaft and is connected with a water pump arranged on the box body.

Drawings

Fig. 1 is a schematic structural view of a dishwasher according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the inner door of FIG. 1;

FIG. 3 is a schematic view of the inner door of FIG. 2 at another angle;

FIG. 4 is a schematic view of the structure of the zone washing apparatus of FIGS. 1 and 2;

FIG. 5 is a schematic cross-sectional view of the zone wash device of FIG. 4;

fig. 6 is a schematic view of the assembly of the area washing apparatus on the inner door body.

Reference numerals:

the dishwasher 100, the case 1, the case 11, the inner tub 12, the bowl basket 121, the tableware 122, the door 2, the outer door 21, the inner door 22, the spray arm assembly 31, the fixed spray arm 311, the fixed spray arm body 3111, the first front side wall 31111, the first rear side wall 31112, the first spray orifice 311121, the outer tube segment 3112, the flange 31121, the inner tube segment 3113, the threaded portion 31131, the rotary spray arm 312, the rotary spray arm body 3121, the second front side wall 31211, the second rear side wall 31212, the second spray orifice 312121, the driving hole 312122, the clamping portion 3122, the sleeve portion 31221, the clamping arm 31222, the first side wall 312221, the connecting wall 312222, the second side wall 312223, the connecting water pipe 32, the first tube segment 321, the second tube segment 322, the first sealing ring 4, the second sealing ring 5, the locking nut 6.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in 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.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may communicate with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

A dishwasher 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 6. As shown in fig. 1 to 6, a dishwasher 100 according to an embodiment of the present invention includes: the device comprises a box body 1, a door body 2 and a regional washing device.

As shown in fig. 1, the box 1 is in a cube structure, and the box 1 may include a box shell 11 and an inner container 12, where the inner container 12 is open toward the front side, and a bowl basket 121 may be disposed in the inner container 12, where a bracket for holding tableware 122 with different functions is disposed on the bowl basket 121, for example, tableware such as a bowl, a dish, a spoon, etc. may be placed in different areas of the bracket, and at the same time, a rotary lower spray arm may be disposed at the bottom of the inner container 12, and the rotary lower spray arm may clean the tableware 122 located in the main area of the bowl basket 121.

The door 2 is mounted on the case 1, and preferably, the door 2 is pivotably mounted on the front side of the case 1 through a rotation shaft or a hinge so that a user can open or close the case 1 to put and take out the dishes 122.

The zone washing device is provided on an inner side surface of the door body 2, preferably, the zone washing device is adjacent to a corner of the door body 2, and further, the zone washing device may include: the spray arm assembly 31, the connection water pipe 32 and a water pump (not shown in the drawings), the connection water pipe 32 is used for connecting the water pump with the spray arm assembly 31, and the water pump can be connected with the water tank of the dishwasher 100. Alternatively, the water pump may be an independent water pump configured for the area washing device, and of course, the water pump may also share the same water pump with the rotary lower spray arm at the bottom of the liner 12.

Thus, after the rotary lower spray arm pre-washes and main washes the dishes 122 located in the main body area of the bowl basket 121, the water path of the water pump to the spray arm assembly 31 can be communicated for a period of time to enable the area washing device to work, and targeted enhanced washing is performed on a part of the area of the lower bowl basket 121, so that pollutants on the dishes 122 in the lower bowl basket 121 are completely washed through the main washing and the enhanced washing, and the condition that the dish washer 100 does not have pollutants on the dishes 122 in the lower bowl basket 121 after entering the rinsing stage is ensured.

According to the dish washer 100 provided by the embodiment of the invention, the problem that the tableware 122 at the corners of the lower bowl basket 121 is difficult to clean can be effectively solved by arranging the regional washing device, and the problem of secondary pollution caused by pollutants on the tableware 122 of the lower bowl basket 121 can be solved, so that the cleaning effect of the tableware 122 of the lower bowl basket 121 is effectively improved, and finally, the aim of improving the cleaning performance of the dish washer 100 is fulfilled.

In some embodiments, as shown in fig. 1-2, the door body 2 may include: an outer door body 21 and an inner door body 22, the inner door body 22 being provided on an inner side surface of the outer door body 21, and at the same time, the area washing device may be provided on a side surface of the inner door body 22 facing the inside of the cabinet 1, preferably, the area washing device may be provided adjacent to a lower left corner or a lower right corner of the door body 2, i.e., the area washing device may be provided adjacent to a lower left corner position of the door body 2, or the area washing device may be provided adjacent to a lower right corner position of the door body 2.

Of course, as a preferred embodiment, there may be two area washing apparatuses, and the two area washing apparatuses may be disposed adjacent to the lower left corner and the lower right corner of the door body 2, respectively, so that a plurality of area washing apparatuses may simultaneously wash the dishes 122 positioned at the corners of the lower basket 121, thereby effectively improving the working efficiency and cleaning effect of the dishwasher 100.

Alternatively, according to actual needs, a person skilled in the art can set an area washing device at a corresponding position in the box body for the rest parts which are difficult to clean in the bowl basket 121, so as to ensure that the tableware 122 in the bowl basket 121 is thoroughly cleaned and achieve the cleaning effect.

In some embodiments, the spray arm assembly 31 may include: the fixed spray arm 311 and the rotary spray arm 312, the rotary spray arm 312 may rotate clockwise or counterclockwise with respect to the fixed spray arm 311, as shown in fig. 1 and 2, the fixed spray arm 311 is disposed parallel to the door body 2, and the rotation axis of the rotary spray arm 312 is orthogonal to the door body 2, i.e., the rotary spray arm 312 may rotate in the vertical plane of the inner door body 22.

Further, the fixed spray arm 311 is located between the door body 2 and the rotary spray arm 312, the rotary spray arm 312 is connected with the fixed spray arm 311, further, as shown in fig. 4, spray holes are respectively provided on the fixed spray arm 311 and the rotary spray arm 312, preferably, a plurality of first spray holes 311121 are provided on the fixed spray arm 311, the plurality of first spray holes 311121 may be a plurality of first spray holes 311121 are distributed on the fixed spray arm 311 at intervals and are distributed in multiple rows and multiple columns, specifically, as shown in fig. 4, the number of first spray holes 311121 in the embodiment of the present invention is eight, and the eight first spray holes 311121 are distributed in four rows and two columns on the fixed spray arm 311.

Accordingly, the rotary spray arm 312 is provided with a plurality of second spray holes 312121, and the plurality of second spray holes 312121 may be distributed on the rotary spray arm 312 at intervals and in a plurality of rows and columns, specifically, as shown in fig. 4, in the embodiment of the present invention, six second spray holes 312121 are distributed on the rotary spray arm 312 in a plurality of rows and columns.

Thus, when the water pump is connected with the water path of the spray arm assembly 31, a part of washing water is sprayed out from the first spray holes 311121 on the fixed spray arm 311, and the water sprayed out from the first spray holes 311121 can directly reach the surface of the tableware 122 arranged at the side edge of the bowl basket 121, so that the tableware 122 positioned at two corners of one side of the regional washing device in the lower bowl basket 121 can be directly washed, and the other part of washing water enters the rotary spray arm 312 and is sprayed out from the second spray holes 312121 on the rotary spray arm 312 and is sprayed to other surfaces of the tableware 122 in the rotating process of the rotary spray arm 312.

Thus, by the combined action of the fixed spray arm 311 and the rotary spray arm 312, the angle at which the regional washing apparatus water stream is sprayed onto the surface of the dishes 122 can be greatly expanded, thereby greatly increasing the spray area of the regional washing apparatus water stream.

Advantageously, the first and second spray holes 311121 and 312121 may be circular holes, and in particular, as shown in fig. 5 and 6, the first spray hole 311121 may protrude the first rear sidewall 31112 of the fixed spray arm 311 and the second spray hole 312121 may protrude the second rear sidewall 31212 of the rotary spray arm 312.

Of course, the nozzle holes of the fixed nozzle arm 311 and the rotary nozzle arm 312 may be other non-circular holes such as triangular holes and square holes, but not limited thereto. Meanwhile, the water spray angles of the first spray holes 311121 and the second spray holes 312121 may be adjusted as needed to achieve the optimal washing effect of the dishwasher 100.

Preferably, as shown in fig. 4, the rotary spray arm 312 may further be provided with two driving holes 312122, the two driving holes 312122 may be respectively located at two ends of the rotary spray arm 312 and respectively near two opposite sides of the rotary spray arm 312, and preferably, the driving holes 312122 may be inclined holes, that is, the openings of the driving holes 312122 may be inclined and open outwards in a direction away from the center of the rotary spray arm 312.

Specifically, a wedge may be disposed on the second rear sidewall 31212 of the rotary spray arm 312, that is, the width of the wedge may gradually decrease from the surface of the second rear sidewall 31212 toward a direction away from the rotary spray arm 312, and preferably, the driving hole 312122 may be disposed on a slope of the wedge away from the center of the second rear sidewall 31212, such that the water flow rushing out from the driving hole 312122 may apply a reverse force to the driving hole 312122, thereby forming a rotational moment between the two driving holes 312122, and thus allowing the rotary spray arm 312 to continuously rotate in a vertical plane.

In some embodiments, as shown in fig. 5, the fixed spray arm 311 may include: the fixed spray arm body 3111, the outer tube section 3112 and the inner tube section 3113, wherein the fixed spray arm body 3111 has an oblong structure and is hollow inside, further, the fixed spray arm body 3111 may include a first front side wall 31111 and a first rear side wall 31112, the outer tube section 3112 and the inner tube section 3113 are respectively disposed on both sides of the fixed spray arm body 3111, and the inner tube section 3113 and the outer tube section 3112 have a circular cross section, are hollow inside, and extend from the first front side wall 31111 and the first rear side wall 31112 of the fixed spray arm body 3111 to a direction away from the fixed spray arm body 3111, respectively.

Specifically, the outer tube segment 3112 is disposed on the first rear sidewall 31112 of the fixed spray arm body 3111 and is communicated with the interior of the fixed spray arm body 3111, the inner tube segment 3113 is disposed on the first front sidewall 31111 of the fixed spray arm body 3111 and is communicated with the interior of the fixed spray arm body 3111, and the first nozzle 311121 is also disposed on the first rear sidewall 31112 of the fixed spray arm body 3111, so that water flowing out of the water pump can enter the interior of the fixed spray arm body 3111 after passing through the inner tube segment 3113, and is further sprayed out of the first nozzle 311121.

Preferably, the rotary spray arm 312 is rotatably disposed on the outer tube segment 3112, and the outer tube segment 3112 communicates with the fixed spray arm body 3111 and the rotary spray arm 312, i.e., one end of the outer tube segment 3112 communicates with the fixed spray arm 311 and the other end communicates with the rotary spray arm body 3121.

As shown in fig. 5, the rotary spray arm 312 may include: the rotary spray arm body 3121 and the clamping portion 3122 may have an oval structure, and the rotary spray arm body 3121 is hollow, further, the rotary spray arm body 3121 may also include a second front side wall 31211 and a second rear side wall 31212, and the second front side wall 31211 of the rotary spray arm body 3121 is provided with the second spray hole 312121, so that water flowing out of the inner pipe section 3113 may enter the rotary spray arm body 3121 through the outer pipe section 3112, and be sprayed out of the second spray hole 312121 and the driving hole 312122.

Further, the grip portion 3122 is connected to the outer pipe section 3112, specifically, as shown in fig. 5, a flange 31121 may be provided on an outer circumferential surface of the outer pipe section 3112, the flange 31121 extending from the outer circumferential surface of the outer pipe section 3112 in a direction away from the outer pipe section 3112, and the flange 31121 being provided perpendicular to the outer circumferential surface of the outer pipe section 3112, while the flange 31121 is located near an end of the outer pipe section 3112 connected to the fixed shower arm 311, i.e., a distance of the flange 31121 from a front end surface of the outer pipe section 3112 is smaller than a distance from a rear end surface.

Preferably, the grip 3122 is clampable over the flange 31121 and the grip 3122 is rotatable relative to the flange 31121. Specifically, the grip 3122 may include: a sleeve portion 31221 and a clamp arm 31222, wherein the sleeve portion 31221 extends from the second front side wall 31211 of the rotary spray arm body 3121 in a direction away from the rotary spray arm body 3121, and the sleeve portion 31221 is disposed perpendicular to the rotary spray arm body 3121, while the sleeve portion 31221 may have a circular cross section, be hollow inside, and the inner diameter of the sleeve portion 31221 is greater than the outer diameter of the outer tube segment 3112 so that the sleeve portion 31221 can be slipped over the outer tube segment 3112, preferably the free end of the sleeve portion 31221 abuts against a first side (e.g., a rear side) of the flange 31121.

The clamp arms 31222 are "U" shaped and open to the outer peripheral wall of the outer tube segment 3112, preferably the clamp arms 31222 can include: the first side wall 312221, the connecting wall 312222 and the second side wall 312223, the first side wall 312221 is connected to the outer peripheral surface of the sleeve portion 31221 and extends from the outer peripheral surface of the sleeve portion 31221 in a direction away from the sleeve portion 31221, the first side wall 312221 is disposed perpendicular to the outer peripheral surface of the sleeve portion 31221, the connecting wall 312222 is used for connecting the first side wall 312221 and the second side wall 312223, the connecting wall 312222 extends in an up-down direction, the connecting wall 312222 is perpendicular to the first side wall 312221, the second side wall 312223 extends from the connecting wall 312222 in a direction away from the connecting wall 312222, and the free end of the second side wall 312223 abuts against a second side (e.g., front side) of the flange 31121 facing away from the first side.

In this way, the free ends of the sleeve portion 31221 and the second side wall 312223 respectively abut against the two side surfaces of the flange 31121, so that the rotary spray arm 312 is mounted and fixed on the fixed spray arm 311, and the connection is firm, and the rotary spray arm 312 is not easy to drop.

Further, the second side wall 312223 is wedge-shaped and the wall thickness decreases in radial direction from the outside to the inside, i.e. the thickness of the end of the second side wall 312223 connected to the connecting wall 312222 is greater than the thickness of the free end of the second side wall 312223.

Preferably, a second sealing ring 5 may be disposed between the clamping portion 3122 and the fixed spray arm body 3111, that is, a side surface of the second side wall 312223 may press the second sealing ring 5 against the first rear side wall 31112 of the fixed spray arm body 3111, and preferably, the second sealing ring 5 may be annular, thereby improving the tightness of the connection between the outer pipe section 3112 and the clamping portion 3122, so as to prevent occurrence of a water leakage phenomenon.

In some preferred embodiments, the number of the clamping arms 31222 can be multiple, and the plurality of clamping arms 31222 can be symmetrically distributed about the sleeve portion 31221, thereby making the connection between the rotary spray arm 312 and the outer pipe section 3112 secure, and thus effectively preventing the rotary spray arm 312 from falling.

Further, as shown in fig. 6, the inner pipe section 3113 extends into the door body 2 and is connected to the connection water pipe 32 located inside the door body 2, preferably, a threaded portion 31131 is provided on an outer circumferential surface of the inner pipe section 3113, and the threaded portion 31131 is adjacent to an end of the inner pipe section 3113 connected to the fixed spray arm 311, and the dishwasher 100 of the embodiment of the present invention may further include: and a lock nut 6, wherein the lock nut 6 is in threaded engagement with the threaded portion 31131 of the inner pipe section 3113 to fasten the fixed spray arm 311 to the door body 2.

Preferably, a first sealing ring 4 may be disposed between the lock nut 6 and the door body 2, and the first sealing ring 4 may have a ring shape, so that the sealing property of the connection water pipe 32 and the inner pipe section 3113 at the connection point is improved, thereby preventing the occurrence of the water leakage phenomenon.

As shown in fig. 6, the connecting water pipe 32 may include a first pipe section 321 and a second pipe section 322, the first pipe section 321 and the second pipe section 322 having a uniform cross section, wherein the first pipe section 321 extends in an up-down direction, the second pipe section 322 extends in a front-rear direction, the first pipe section 321 is disposed perpendicular to the second pipe section 322 and adopts a circular arc transition at the connection, and the length of the first pipe section 321 is greater than that of the second pipe section 322, while the first pipe section 321 may be located in a space defined by the outer door body 21 and the inner door body 22, and the inner pipe section 3113 also extends into the space between the outer door body 21 and the inner door body 22, preferably, an end of the second pipe section 322 remote from the first pipe section 321 abuts against the lock nut 6, and an inner diameter of the connecting water pipe 32 is greater than an outer diameter of the inner pipe section 3113, so as to sleeve the second pipe section 322 over an outer circumferential surface of the inner pipe section 3113.

In some preferred embodiments, the door body 2 may be connected to the cabinet 1 through a hollow rotation shaft, preferably, the connection water pipe 32 may penetrate through the hollow rotation shaft and be connected to a water pump provided on the cabinet 1, thereby preventing the door body 2 from interfering with the connection water pipe 32 when being opened and closed, thereby affecting the normal operation of the dishwasher 100, reducing user experience, and simultaneously, allowing the connection water pipe 32 to penetrate through the hollow rotation shaft on the door body 2, resulting in a compact internal structure of the dishwasher 100.

Preferably, the connecting water pipe 32 may be a hose, so that connection between the connecting water pipe 32 and the water pump and the inner pipe section 3113 of the fixed spray arm 311 is facilitated on the one hand, and flexibility in arrangement of the connecting water pipe 32 is improved on the other hand.

In some preferred embodiments, the water pump may be provided with a reversing valve, which may be controlled by an electromagnetic switch, and the reversing valve may include a water inlet and a plurality of water outlets, which may be respectively in communication with the rotary lower spray arm and the area washing device, such that, during different washing phases of the dishwasher 100, a user may control one or more of the plurality of water outlets of the reversing valve to be opened and the remaining water outlets to be closed by the switch, thereby achieving a washing function of the dishwasher 100 during the different phases, for example, during a main washing phase, the rotary lower spray arm is operated, and during an enhanced washing phase, the area washing device is operated, thereby further improving the washing performance of the dishwasher 100, and reducing the energy consumption of the dishwasher 100, and reducing the production costs.

Preferably, the lower rotary spray arm may have a structure consistent with the area washing apparatus, and the size of the lower rotary spray arm may be larger than that of the area washing apparatus, whereby the water spray amount of the lower rotary spray arm is large, thereby completing the washing operation of the dishwasher 100 in the pre-wash and main wash stages.

The operation of the dishwasher 100 according to an embodiment of the present invention is described in detail with reference to fig. 1 to 6 as follows:

as shown in fig. 1 to 6, in the pre-washing and main washing stages, the rotary lower spray arm is operated, the connection water pipe 32 is communicated with the rotary lower spray arm, water in the tank 1 enters the rotary lower spray arm through the connection water pipe 32 by a water pump, the lower spray arm starts to rotate under the impact of water flow, and water flow sprayed from the spray holes of the lower spray arm is sprayed onto the surface of the tableware 122 on the main body area of the bowl basket 121, so that the tableware 122 on the main body area of the bowl basket 121 is washed.

After the pre-washing and the main washing are finished, the area washing device positioned at the left lower corner or the right lower corner of the inner side of the door body 2 works, the connecting water pipe 32 is communicated with the area washing device, water in the box body 1 enters the inner parts of the fixed spray arm 311 and the rotary spray arm 312 of the area washing device through the connecting water pipe 32, water sprayed from the first spray holes 311121 of the fixed spray arm 311 can be sprayed onto the surface of the tableware 122 at the side edge of the bowl basket 121, so that the tableware 122 at the two corners at the same side of the bowl basket 121 can be cleaned, meanwhile, the rotary spray arm 312 starts to rotate under the impact of water sprayed from the driving hole 312122, and water sprayed from the second spray holes 312121 of the rotary spray arm 312 can be sprayed onto the front side surface of the tableware 122, so that the tableware 122 on the bowl basket 121 can be cleaned more comprehensively.

Finally, in the rinsing stage, the lower spray arm can be operated, the connecting water pipe 32 is communicated with the rotary lower spray arm, and water in the box body 1 enters the rotary lower spray arm through the connecting water pipe 32 by a water pump, so that the tableware 122 on the bowl basket 121 is simply washed by water flow sprayed by the lower spray arm.

In short, according to the dish washer 100 of the embodiment of the present invention, by providing the area washing device, the problem that the corner dishes 122 of the lower basket 121 are difficult to wash can be effectively solved, and the problem of secondary pollution caused by the pollutants on the dishes 122 of the lower basket 121 can be solved, so that the washing effect of the dishes 122 of the lower basket 121 can be effectively improved, and finally, the aim of improving the washing performance of the dish washer 100 can be achieved.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims

1. A dishwasher, comprising:

a case;

the door body is arranged on the box body;

a zone wash device disposed on an inside surface of the door body, the zone wash device being adjacent to a corner of the door body, the zone wash device comprising:

the spray arm assembly, the connecting water pipe and the water pump, wherein the connecting water pipe is used for connecting the water pump and the spray arm assembly;

the spray arm assembly includes: the fixed spray arm is positioned between the door body and the rotary spray arm, and spray holes are respectively formed in the fixed spray arm and the rotary spray arm;

the fixed spray arm includes: the fixed spray arm comprises a fixed spray arm body, an outer pipe section and an inner pipe section, wherein the outer pipe section and the inner pipe section are respectively arranged on two side surfaces of the fixed spray arm body, the rotary spray arm is rotatably arranged on the outer pipe section, the outer pipe section is communicated with the fixed spray arm body and the rotary spray arm, and the inner pipe section extends into the door body and is connected with the connecting water pipe positioned in the door body;

the outer peripheral surface of the outer pipe section is provided with a flange, and the rotary spray arm comprises: the rotary spray arm body and the clamping part are clamped on the flange, and the clamping part can rotate relative to the flange;

the clamping part includes:

2. The dishwasher of claim 1, wherein the inner tube section is provided with a screw portion on an outer circumferential surface thereof, the dishwasher further comprising: and the locking nut is in threaded fit with the threaded part on the inner pipe section so as to fasten the fixed spray arm on the door body.

3. The dishwasher of claim 2, wherein a first gasket is disposed between the lock nut and the door body.

4. The dishwasher of claim 1, wherein the door body comprises: the inner door body is arranged on the inner side face of the outer door body, the area washing device is arranged on the side face, facing the inside of the box body, of the inner door body, and the inner pipe section extends into a space between the outer door body and the inner door body.

5. The dishwasher of claim 1, wherein a second gasket is provided between the clamping portion and the fixed spray arm body.

6. The dishwasher of claim 1, wherein the second side wall is wedge-shaped and the wall thickness tapers radially from the outside to the inside.

7. The dishwasher of claim 1, wherein the clamping arms are a plurality and are symmetrically distributed about the sleeve portion.

8. The dishwasher of claim 1, wherein the fixed spray arm is disposed parallel to the door body, and the axis of rotation of the rotary spray arm is orthogonal to the door body.

9. The dishwasher of claim 1, wherein the zone washing device is disposed adjacent a lower left or lower right corner of the door body.

10. The dishwasher of claim 1, wherein the connecting water pipe is a hose.

11. The dishwasher of claim 10, wherein the door body is connected to the tub through a hollow shaft, and the connection water pipe penetrates the hollow shaft and is connected to a water pump provided on the tub.