CN214484439U

CN214484439U - Dishwasher filter system and dishwasher

Info

Publication number: CN214484439U
Application number: CN202023352710.0U
Authority: CN
Inventors: 任富佳; 姚伟; 贺晓帆; 姚春晓; 马涛; 包自超; 代治举; 刘远航
Original assignee: Hangzhou Robam Appliances Co Ltd
Current assignee: Hangzhou Robam Appliances Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-10-26
Anticipated expiration: 2030-12-31

Abstract

The utility model belongs to the technical field of dish washer, a dish washer filtration system and dish washer are related to. The dishwasher filtering system comprises a dishwasher cup, an annular filter screen and an ultrasonic generating rod; the annular filter screen is arranged in the water cup of the dish-washing machine, and a filter cavity is formed in the annular filter screen; the ultrasonic wave generating rod is installed at the bottom of the cup of the dishwasher and comprises an ultrasonic wave rod working area, and the top end of the ultrasonic wave rod working area is higher than the bottom end of the annular filter screen or is parallel and level with the bottom end of the annular filter screen. The technical problem of the complicated structure of the washing of cup filter screen that catchments is solved, reached the technical effect of simplifying the structure, improving the reliability.

Description

Dishwasher filter system and dishwasher

Technical Field

The utility model belongs to the technical field of dish washer, particularly, relate to a dish washer filtration system and dish washer.

Background

The washing process of a dishwasher is generally divided into three phases: prewashing, main wash, rinsing, thereby its theory of operation all is through washing pump suction washing filtration water back through spray arm rotatory injection to the tableware wash, and wherein, filtration system plays crucial effect to the washing effect and the user experience of dish washer.

In the related art, the washing water of the dish washing machine is pumped into the spray arm through the washing pump to be sprayed, so that the residues such as food are accumulated on the filtering system after long-time use, the more residues are accumulated, the water pumping amount of the washing pump can be directly influenced, the water spraying pressure of the spray arm is further influenced, and the washing effect of the dish washing machine is reduced. In addition to the reduction of the work efficiency of the washing pump, the oil stain accumulated on the filter screen of the dish washing machine is easy to generate peculiar smell if not cleaned in time.

Therefore, in the prior art, the filter screen is generally cleaned manually after being taken out, which not only consumes manpower, but also has poor cleaning effect and is difficult to thoroughly remove oil stains. If a tool brush, a wire ball, or the like is used, the screen may be damaged. In addition, because the cup of the dish washing machine is arranged at the bottom of the dish washing machine, the spray water hardly generates large scouring force on the oil stains on the filter screen, and the spray water is not practical to clean the oil stains on the filter screen.

CN108378804A (published 2018, 08 and 10) discloses a filter system of a dishwasher, the dishwasher comprising a water collecting cup, the filter system comprising: a cylindrical filter member configured to be cylindrical and rotatably disposed in the water collecting cup; the motor is used for driving the cylindrical surface filtering component to rotate; and the ultrasonic generator is arranged close to the cylindrical surface filtering component. Above-mentioned prior art, dish washer utilize supersonic generator to wash the cylinder filtering component of dish washer, though can realize better cleaning performance earlier, but the structure is complicated, the production of being not convenient for, and motor drive filter screen is rotatory, has the impaired risk of motor. In addition, in the aspect of rotating speed control, if the control is not uniform, the effect of cleaning the filter screen is also greatly influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dish washer filtration system can solve the technical problem that the washing structure of the cup filter screen that catchments that prior art provided is complicated.

In a first aspect, the present solution provides a dishwasher filtration system comprising:

a dishwasher cup;

the annular filter screen is arranged in the water cup of the dish-washing machine, and a filter cavity is formed in the annular filter screen;

the ultrasonic wave generating rod is installed at the bottom of the cup of the dishwasher and comprises an ultrasonic wave rod working area, and the top end of the ultrasonic wave rod working area is higher than the bottom end of the annular filter screen or is parallel and level with the bottom end of the annular filter screen.

The utility model of this aspect has the beneficial effects that:

through inciting somebody to action the top of ultrasonic wave stick workspace is higher than annular filter screen's bottom or with annular filter screen's bottom parallel and level can utilize ultrasonic wave stick workspace to arouse that the water in the filter chamber is whole all to take place the vibration to all clean the part of the whole circumference of annular filter screen. Because the water feeding port of the washing pump is arranged on the side surface of the water cup of the dishwasher, the part of the annular filter screen which is closer to the water feeding port of the washing pump has larger total amount of water flow, and the more stains can be hung on the surface. By locating the top end of the ultrasonic wand working area there, it is possible to function with maximum efficiency to clean the annular screen, reducing the resistance to water flow and ultimately increasing the flow and pressure of the washer pump. Moreover, the water in the filter cavity is integrally vibrated from the bottom, so that the annular filter screen is not required to rotate, the requirement that a vibration source is arranged on the side surface of the annular filter screen is met, and the problem of motor or uneven filter screen cleaning caused by rotation is naturally eliminated.

In an alternative mode, the bottom of the dishwasher glass is provided with a drainage cavity, and the ultrasonic generating rod is arranged at the bottom of the drainage cavity.

In an optional mode, the bottom of the dishwasher cup is provided with a mounting hole, and the ultrasonic generating rod penetrates through the mounting hole from top to bottom and then is mounted on the dishwasher cup.

In an optional mode, an external thread part is arranged at the bottom of the ultrasonic generating rod, and after the ultrasonic generating rod penetrates through the mounting hole from top to bottom, the external thread part is locked by a fastening nut positioned at the bottom of the water cup of the dishwasher.

In an optional mode, the bottom of the dishwasher cup is provided with a mounting hole, and the ultrasonic generating rod passes through the mounting hole from bottom to top and is mounted on the dishwasher cup.

In an optional mode, the ultrasonic generating rod is fixedly connected with a first mounting plate, a threaded fastener through hole is arranged on the first mounting plate,

the ultrasonic generating rod penetrates through the mounting hole from bottom to top and then is fixedly connected with the bottom of the dishwasher cup through the first mounting plate.

In an optional mode, the bottom of the dishwasher water cup is provided with a mounting hole, the ultrasonic generation rod penetrates through the mounting hole, an inverted buckle protrusion is arranged on the outer side of the bottom of the dishwasher water cup, the ultrasonic generation rod is fixedly connected with the second mounting plate, a fixing buckle is arranged on the second mounting plate, and the inverted buckle protrusion is clamped in the fixing buckle.

In an alternative mode, the ultrasonic generating rod is connected to the bottom of the cup of the dishwasher in an injection molding mode.

In an optional mode, the bottom of the dishwasher water cup is provided with a mounting hole, the ultrasonic generation rod penetrates through the mounting hole, the ultrasonic generation rod further comprises a locking flange and an external thread part, the ultrasonic rod working area is formed by sequentially arranging the external thread part and the locking flange from top to bottom, a sealing gasket is clamped between the locking flange and the bottom of the dishwasher water cup, the external thread part is in threaded connection with a fastening nut, and the fastening nut is located on the inner side of the bottom of the dishwasher water cup.

In an alternative mode, the number of the ultrasonic generating rods is two, wherein one of the ultrasonic generating rods is installed close to a water supply port of the washing pump, and the other ultrasonic generating rod is installed close to a water discharge pump port.

In an alternative mode, the working area of the ultrasonic rod is Y-shaped, T-shaped, cylindrical, multi-fork-shaped or spherical.

In a second aspect, the present disclosure provides a dishwasher, including the above dishwasher filter system.

The utility model of this aspect has the beneficial effects that:

the dishwasher provided by the aspect comprises the dishwasher filtering system, so that the technical effect of the dishwasher filtering system is achieved, and the description is omitted.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic cross-sectional view of a dishwasher filtration system according to an embodiment of the present invention, showing several relevant components of the dishwasher;

FIG. 2 is an exploded perspective view of a filter system of a dishwasher according to a first embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a view angle of a cup of a dishwasher in accordance with a first embodiment;

FIG. 4 is a schematic structural view of another perspective of a dishwasher glass in accordance with the first embodiment, in which an ultrasonic generating rod has been installed;

FIG. 5 is a schematic view of a ring screen according to a first embodiment;

FIG. 6 is a schematic view of the ultrasonic generating rod of the first embodiment, showing several parts for fixing the rod to a cup of a dishwasher;

FIG. 7 is a schematic structural view of an ultrasonic generating rod according to a second embodiment, further showing a plurality of components for fixing the rod to a cup of a dishwasher;

FIG. 8 is a schematic structural view of an ultrasonic generating rod according to a third embodiment, showing a plurality of parts for fixing the rod to a cup of a dishwasher;

FIG. 9 is a schematic structural view of an ultrasonic generating rod according to a fourth embodiment.

Icon: 1-dishwasher bottom case; 2-plane water filtering plate; 3-ring filter screen; 31-fine filtration upper neck; 32-fine filtering and flanging; 33-a screen body; 34-a filter screen rotary buckle; 35-filter screen bottom; 4-coarse strainer; 41-fastening a coarse strainer; 5-dishwasher water cup; 51-the cup is screwed; 52-mounting holes; 53-drain pump interface; 54-a water outlet; 55-washing pump water supply mouth; 56-a drainage cavity; 6-ultrasonic generating rod; 61-ultrasonic bar working area; 611-locking flange; 612-an external threaded portion; 621-a first mounting plate; 622-threaded fastener via; 631-a second mounting plate; 632-fixing a fastener; 641-injection molding a connecting body; 7-a sealing gasket; 8-fastening a nut; 9-spray arm water outlet; 10-spray arm screw.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "first type", "second type", "third type", etc. are used for distinction only, and are uniformly described with respect to the same type of component or feature, meaning that the number of the component or feature may be plural, but it is not denied that the number of the component or feature may be one.

Furthermore, the terms "horizontal", "vertical", "suspended", and the like do not imply that the components are required to be absolutely horizontal or suspended, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

The first embodiment is as follows:

as shown in fig. 1 to 6, the present embodiment provides a dishwasher filter system including: the ultrasonic water purifier comprises a dishwasher cup 5, an annular filter screen 3 and an ultrasonic generating rod 6, wherein the annular filter screen 3 is arranged in the dishwasher cup 5, and a filter cavity is formed in the annular filter screen 3; the ultrasonic generating rod 6 is arranged at the bottom of the cup 5 of the dish washing machine, the ultrasonic generating rod 6 comprises an ultrasonic rod working area 61, and the top end of the ultrasonic rod working area 61 is higher than the bottom end of the annular filter screen 3 or is flush with the bottom end of the annular filter screen 3. Preferably, the top end of the working area 61 of the ultrasonic rod is higher than the bottom end of the ring screen 3 or is flush with the bottom end of the ring screen 3.

Set the top through with ultrasonic wave stick workspace 61 to be higher than the bottom of annular filter screen 3, can utilize ultrasonic wave stick workspace 61 to arouse that the water in the filter chamber is whole all to take place to vibrate to the part of the whole circumference of annular filter screen 3 all cleans. Since the washing pump water supply opening 55 is arranged on the side surface of the dishwasher cup 5, the part of the annular filter net 3 which is closer to the washing pump water supply opening 55 has larger water flow amount, more stains can be hung on the surface, and the top end of the ultrasonic bar working area 61 is arranged at the position, so that the washing pump water supply opening can play a role with maximum efficiency to clean the annular filter net 3, reduce the resistance of water flow, and finally improve the flow and pressure of the washing pump. Moreover, because the ultrasonic energy is sent from the working area 61 of the ultrasonic rod, the liquid in the filter cavity is caused to vibrate along with the ultrasonic rod, so that the annular filter screen 3 is not required to rotate, the requirement that a vibration source is arranged on the side surface of the annular filter screen 3 is met, the structure is simplified, the reliability is improved, and the problem of motor problem or uneven filter screen cleaning caused by rotation is naturally eliminated.

In an alternative embodiment, as shown in fig. 1 and 4, the dishwasher cup 5 is formed with a drain chamber 56 at the bottom thereof, the drain chamber 56 being lower than the ring screen 3, and the ultrasonic generating bar 6 is installed at the bottom of the drain chamber 56.

Since the drainage chamber 56 is not filtered by the ring filter 3, the water in the dishwasher cup 5 may also have a portion of the dirt deposited on the side walls of the drainage chamber 56. The ultrasonic generation rod 6 is arranged at the bottom of the drainage cavity 56, so that the drainage cavity 56 can be cleaned by the ultrasonic generation rod 6, and dirt deposited on the inner wall of the drainage cavity 56 can be eliminated.

As shown in fig. 3 and 4, in the present embodiment, a drain pump port 53 is disposed at the bottom of the drain chamber 56, and the drain pump port 53 communicates with the drain port 54.

As shown in fig. 1 and 6, in an alternative embodiment, the bottom of the dishwasher cup 5 is provided with a mounting hole 52, the ultrasonic generating rod 6 passes through the mounting hole 52, the ultrasonic generating rod 6 further comprises a locking flange 611 and an external thread part 612, the ultrasonic rod working region 61, the locking flange 611 and the external thread part 612 are sequentially arranged from top to bottom, a sealing gasket 7 is arranged between the locking flange 611 and the bottom of the dishwasher cup 5, the external thread part 612 is in threaded connection with a fastening nut 8, and the fastening nut 8 is positioned outside the bottom of the dishwasher cup 5.

The ultrasonic generating rod 6 passes through the mounting hole 52 at the bottom of the dishwasher cup 5 and is in threaded connection with the fastening nut 8 through the external thread part 612, which is beneficial to improving the mounting rigidity of the ultrasonic generating rod 6 and ensuring the firm fixation of the ultrasonic generating rod 6. In addition, the sealing gasket 7 is clamped by the locking flange 611 and the bottom of the dishwasher cup 5, so that the dishwasher cup 5 can be sealed at the mounting hole 52, and water leakage is prevented.

Specifically, as shown in fig. 4 and 5, the annular filter screen 3 includes a fine filtering upper slot 31, a fine filtering flange 32, a filter screen body 33, a filter screen bottom 35 and a filter screen rotating buckle 34, a cup rotating buckle 51 is arranged on the dishwasher cup 5, the filter screen rotating buckle 34 is used for being clamped in the cup rotating buckle 51, and the fine filtering flange 32 is used for installing the annular filter screen 3 on the planar water filtering plate 2.

Example two:

as shown in fig. 7, the embodiment also provides a filtering system of a dishwasher, which is an improvement on the basis of the first embodiment, and the technical solution of the first embodiment also belongs to the first embodiment, and will not be described again. The same reference numerals are used for the same components as in the first embodiment, and reference is made to the description of the first embodiment. If a reference numeral appears in the drawings used in the embodiment and does not appear in the text of the embodiment, reference may be made to the description of the embodiment on the reference numeral.

In an alternative embodiment, the ultrasonic generating rod is fixedly connected with the first mounting plate 621, a threaded fastener through hole 622 is formed in the first mounting plate 621, the first mounting plate 621 penetrates through the threaded fastener through hole 622 through a fastener and is fixedly connected with a threaded hole in the bottom of the dishwasher water cup 5, and a sealing gasket 7 is arranged between the first mounting plate 621 and the bottom of the dishwasher water cup 5 in a clamping manner.

The first mounting plate 621 fixedly connected with the ultrasonic generating rod 6 is mounted at the bottom of the dishwasher cup 5 by a screw fastener, which is convenient to mount. Not only when the ultrasonic generating rod 6 breaks down, the ultrasonic generating rod is convenient to disassemble, but also is convenient to maintain by using a tool which is universal to the disassembly of the electric appliance, and the convenience of maintenance is improved. In addition, the sealing gasket 7 is clamped by the first mounting plate 621 and the bottom of the dishwasher cup 5, so that the dishwasher cup 5 can be sealed at the mounting hole 52, and water leakage is prevented.

Specifically, in this embodiment, the first mounting plate 621 may be rectangular, the two threaded fastener through holes 622 and the ultrasonic generation rod 6 may be disposed along the length direction of the rectangle, and the two threaded fastener through holes 622 may be symmetrically disposed on both sides of the ultrasonic generation rod 6. The threaded fastener may be a screw in this embodiment.

Example three:

as shown in fig. 8, the embodiment also provides a filtering system of a dishwasher, which is an improvement on the basis of the first embodiment, and the technical solution of the first embodiment also belongs to the first embodiment, and will not be described again. The same reference numerals are used for the same components as in the first embodiment, and reference is made to the description of the first embodiment. If a reference numeral appears in the drawings used in the embodiment and does not appear in the text of the embodiment, reference may be made to the description of the embodiment on the reference numeral.

In an alternative embodiment, an inverted protrusion is arranged on the outer side of the bottom of the dishwasher water cup 5, the ultrasonic generating rod 6 is fixedly connected with the second mounting plate 631, a fixing buckle 632 is arranged on the second mounting plate 631, the inverted protrusion is clamped in the fixing buckle 632, and a sealing gasket 7 is clamped between the second mounting plate 631 and the bottom of the dishwasher water cup 5.

The ultrasonic generating rod 6 can be fixed by clamping the inverted protrusion (not shown) at the outer side of the bottom of the dishwasher cup 5 with the fixing buckle 632 on the second mounting plate 631. The ultrasonic generation rod 6 can be detached from the bottom of the dishwasher cup 5 by utilizing the elastic deformation of the inverted buckle protrusion, so that the assembly and disassembly are convenient. In addition, the sealing gasket 7 is clamped by the first mounting plate 621 and the bottom of the dishwasher cup 5, so that the dishwasher cup 5 can be sealed at the mounting hole 52, and water leakage is prevented.

Specifically, in this embodiment, the second mounting plate 631 may have a rectangular shape, the fixing buckles 632 and the ultrasonic generating rod 6 may be disposed along a length direction of the rectangular shape, and the two fixing buckles 632 may be symmetrically disposed on two sides of the ultrasonic generating rod 6.

Example four:

as shown in fig. 9, the embodiment also provides a filtering system of a dishwasher, which is an improvement on the basis of the first embodiment, and the technical solution of the first embodiment also belongs to the first embodiment, and will not be described again. The same reference numerals are used for the same components as in the first embodiment, and reference is made to the description of the first embodiment. If a reference numeral appears in the drawings used in the embodiment and does not appear in the text of the embodiment, reference may be made to the description of the embodiment on the reference numeral.

The difference between this embodiment and the first embodiment is that the ultrasonic generating rod 6 is connected to the bottom of the dishwasher cup 5 by injection molding. Fig. 9 shows a state where the injection-molded connector 641 is fixedly connected to the ultrasonic generating rod 6.

The mode of injection molding connection is adopted, the installation mode is simple, the manufacturing efficiency is high, the ultrasonic generation rod 6 is filled in place in the circumferential direction in the injection molding mode, and the problem of water leakage between the ultrasonic generation rod 6 and the bottom of the dishwasher cup 5 can be avoided.

EXAMPLE five

The embodiment provides a dishwasher, comprising the dishwasher filter system of any one of the previous embodiments.

Since the dishwasher provided by the embodiment comprises the dishwasher filtering system, the technical effect of the dishwasher filtering system is achieved, and the description is omitted.

Referring to fig. 1, 2 and 5, the dishwasher including the filter system of the dishwasher of the first embodiment further includes:

the dishwasher comprises a dishwasher bottom shell 1, a plane water filtering plate 2, a coarse filter screen 4 and a spray arm water outlet 9, wherein a coarse filter screen buckle 41 is arranged on the coarse filter screen 4, and the coarse filter screen buckle 41 is used for being clamped in the fine filter upper clamping groove 31; the spray arm water outlet 9 is arranged on the dishwasher bottom shell 1 through a spray arm screw 10, the plane water filtering plate 2 is also arranged on the dishwasher bottom shell 1, and the annular filter screen is arranged on the plane water filtering plate 2.

It should be noted that the "coarse screen 4" means that the aperture of the filter screen is larger than that of the ring screen 3, and is thick and thin, which is a relative concept, and is not an absolute definition of hard cutting with a certain aperture.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; for example:

in the first embodiment, the ultrasonic wave generating rod 6 extends into the annular filter screen, the peripheral surface of the upper part of the ultrasonic wave generating rod 6 faces the inner surface of the annular filter screen, and in fact, the top surface of the ultrasonic wave generating rod 6 and the bottom surface of the annular filter screen 3 can be flush with each other only, preferably, the top surface of the ultrasonic wave generating rod 6 and the bottom surface of the annular filter screen are flush with each other, and the ultrasonic wave generating rod 6 can cause the vibration of water in the filter cavity to clean the annular filter screen of the annular filter screen 3.

In the first embodiment, the locking flange 611 is arranged at the inner side of the bottom of the dishwasher cup 5, the fastening nut 8 is arranged at the outer side of the bottom of the dishwasher cup 5, actually, the ultrasonic bar working area 61, the external thread part 612 and the locking flange 611 can be arranged from top to bottom in sequence, the sealing gasket 7 is arranged between the locking flange 611 and the bottom of the dishwasher cup 5, the external thread part 612 is in threaded connection with the fastening nut 8, and the fastening nut 8 is arranged at the inner side of the bottom of the dishwasher cup 5. It is of course possible that in this connection the tightening of the clamping nut 8 is not as convenient as in the first embodiment, but it is not absolutely necessary.

In the first embodiment, an ultrasonic generating rod 6 is provided, and the ultrasonic generating rod 6 extends from the bottom of the drainage chamber 56 to the middle of the filtering chamber, i.e. the middle of the ring-shaped filtering net 3, and actually, the number of the ultrasonic generating rods 6 can be set to two, wherein one is installed near the water feeding port 55 of the washing pump, and the other is installed near the draining pump port 53.

All set up the ultrasonic wave and take place stick 6 near washing pump water supply mouth 55 department and near drain pump interface 53 department, can set up two ultrasonic waves respectively and take place stick 6, at the normal in-process that washes the dishes, can only start the ultrasonic wave that is close to washing pump water supply mouth 55 department and take place stick 6, it is clean to have the filter screen surface of greasy dirt accumulation more easily, to when dishwasher automatically cleaning process, can start the ultrasonic wave that is close to washing pump water supply mouth 55 department and take place stick 6 with the ultrasonic wave that is close to drain pump interface 53 department, thereby wash the dish washer drinking cup 5 inner wall in the outside of the inner wall of drainage chamber 56 and annular filter screen, avoid the long-term residue of spot to produce the peculiar smell.

In the first embodiment, the working area 61 of the ultrasonic rod is cylindrical, and may be Y-shaped, T-shaped, three-forked or spherical at the top.

Such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A dishwasher filtration system, comprising:

a dishwasher cup (5);

the annular filter screen (3) is arranged in the dishwasher cup (5), and a filter cavity is formed in the annular filter screen (3);

stick (6) takes place for the ultrasonic wave, install in the bottom of dishwasher drinking cup (5), stick (6) takes place for the ultrasonic wave includes ultrasonic wave stick workspace (61), the top of ultrasonic wave stick workspace (61) is higher than the bottom of annular filter screen (3) or with the bottom parallel and level of annular filter screen (3).

2. A dishwasher filter system according to claim 1, wherein the bottom of the dishwasher cup (5) is formed with a drain chamber (56), the ultrasound generating bar (6) being mounted at the bottom of the drain chamber (56).

3. The dishwasher filtration system according to claim 2, wherein the dishwasher cup (5) is provided at its bottom with a mounting hole (52), and the ultrasonic generating bar (6) is mounted to the dishwasher cup (5) after passing through the mounting hole (52) from top to bottom.

4. The dishwasher filtration system of claim 3,

the bottom of the ultrasonic generating rod (6) is provided with an external thread part (612), and after the ultrasonic generating rod (6) penetrates through the mounting hole (52) from top to bottom, the external thread part (612) is locked by a fastening nut (8) positioned at the bottom of the dishwasher water cup (5).

5. The dishwasher filtration system according to claim 2, wherein the dishwasher cup (5) is provided at its bottom with a mounting hole (52), the ultrasonic generating bar (6) being mounted to the dishwasher cup (5) after passing through the mounting hole (52) from bottom to top.

6. The dishwasher filtration system of claim 5,

the ultrasonic generating rod (6) is fixedly connected with a first mounting plate (621), a threaded fastener through hole (622) is arranged on the first mounting plate (621),

the ultrasonic generating rod (6) penetrates through the mounting hole (52) from bottom to top and then is fixedly connected with the bottom of the dishwasher cup (5) through the first mounting plate (621).

7. The dishwasher filtering system according to claim 2, wherein the dishwasher cup (5) is provided with a mounting hole (52) at the bottom, the ultrasonic generating rod (6) passes through the mounting hole (52), an inverted protrusion is provided on the outer side of the bottom of the dishwasher cup (5), the ultrasonic generating rod (6) is fixedly connected with the second mounting plate (631), the second mounting plate (631) is provided with a fixing buckle (632), and the inverted protrusion is clamped in the fixing buckle (632).

8. A dishwasher filter system according to claim 2, wherein the ultrasound generating bar (6) is injection-moulded at the bottom of the dishwasher cup (5).

9. The dishwasher filtering system according to claim 2, wherein the bottom of the dishwasher cup (5) is provided with a mounting hole (52), the ultrasonic generating rod (6) passes through the mounting hole (52), the ultrasonic generating rod (6) further comprises a locking flange (611) and an external thread part (612), the ultrasonic rod working area (61), the external thread part (612) and the locking flange (611) are sequentially arranged from top to bottom, a sealing gasket (7) is clamped between the locking flange (611) and the bottom of the dishwasher cup (5), the external thread part (612) is in threaded connection with a fastening nut (8), and the fastening nut (8) is positioned inside the bottom of the dishwasher cup (5).

10. Dishwasher filter system according to one of claims 2 to 9, characterized in that the number of ultrasound generating bars (6) is two, one of which is mounted close to the washing pump feed opening (55) and the other one is mounted close to the drain pump connection (53).

11. The dishwasher filtration system of claim 1, wherein the ultrasonic wand working zone (61) is Y-shaped, T-shaped, cylindrical, multi-pronged or spherical.

12. A dishwasher, characterized in that it comprises a dishwasher filter system according to any one of claims 1 to 11.