CN108113615B

CN108113615B - Filtering system and washing electric appliance

Info

Publication number: CN108113615B
Application number: CN201711274016.1A
Authority: CN
Inventors: 吴建清
Original assignee: Midea Group Co Ltd; Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Priority date: 2017-12-06
Filing date: 2017-12-06
Publication date: 2020-06-30
Anticipated expiration: 2037-12-06
Also published as: CN108113615A

Abstract

The invention discloses a filtering system and a washing electric appliance, wherein the filtering system comprises a shell, a filtering device and a rotating device, the shell comprises a water inlet, a first accommodating cavity is formed in the shell, the water inlet is communicated with the first accommodating cavity, the filtering device is arranged in the first accommodating cavity, a second accommodating cavity is formed by the filtering device and the shell together, the filtering device comprises a first filtering net forming the side wall of the second accommodating cavity, the first filtering net is separated from the side wall of the first accommodating cavity, the second accommodating cavity is communicated with the first accommodating cavity through the first filtering net, the rotating device is positioned in the second accommodating cavity, the first filtering net surrounds the rotating device, the rotating device comprises at least one water spraying opening facing the first filtering net, and the rotating device is configured to rotate relative to the first filtering net so as to spray water to the first filtering net through the at least one water spraying opening The first filter screen sprays water.

Description

Filtering system and washing electric appliance

Technical Field

The invention relates to the field of household appliances, in particular to a filtering system and a washing appliance.

Background

In the related art, a dishwasher adopts a cup type filtering system to filter cleaning liquid for cleaning tableware. However, the cup type filtering system has the problem that food residues easily block the filter screen of the cup type filtering system in the filtering process, so that the filtering efficiency of the cup type filtering system is poor, and the filtering system is easy to block, so that the problem that the system is blocked can be solved only by frequently manually disassembling and cleaning the cup type filtering system, and the operation is troublesome.

Disclosure of Invention

The invention provides a filtering system and a washing electric appliance.

The filtering system provided by the embodiment of the invention is used for washing an electric appliance, and comprises a shell, a filtering device and a rotating device, wherein the shell comprises a water inlet, a first accommodating cavity is formed in the shell, the water inlet is communicated with the first accommodating cavity, the filtering device is arranged in the first accommodating cavity, a second accommodating cavity is formed by the filtering device and the shell together, the filtering device comprises a first filtering net forming the side wall of the second accommodating cavity, the first filtering net is separated from the side wall of the first accommodating cavity, the second accommodating cavity is communicated with the first accommodating cavity through the first filtering net, the rotating device is positioned in the second accommodating cavity, the first filtering net surrounds the rotating device, the rotating device comprises at least one water spraying opening facing the first filtering net, and the rotating device is configured to rotate relative to the first filtering net so as to spray water through the at least one water spraying opening toward the second accommodating cavity The first filter screen sprays water.

The above-mentioned filtering system can be applied to washing appliances, so that water containing impurities (such as food residues) can enter the first accommodating cavity from the water inlet, and the first filter screen can separate the water from the impurities. Simultaneously, when filtration system filters water through first filter screen, can make rotating device rotate for first filter screen in order to spray water to first filter screen from inside to outside through at least one water jet to reach the washing to first filter screen of realization when filtering water through first filter screen, can make the impurity of remaining on first filter screen break away from first filter screen like this, thereby guarantee the cleanliness of first filter screen, make filtration system be difficult to appear blockking up, guarantee filtration system's filter effect then. In addition, because the first filter screen can be cleaned in time, the problem that the filter system needs to be frequently disassembled and cleaned manually can be avoided.

In some embodiments, the filter system includes a second filter screen disposed at the water inlet, the second filter screen is communicated with the first accommodating cavity, and the size of the mesh of the second filter screen is larger than that of the mesh of the first filter screen.

In some embodiments, the casing includes a housing and an upper cover, the top of the housing has an opening, the upper cover is mounted on the housing and covers the opening, and forms the first accommodating cavity together with the housing, the upper cover is provided with the water inlet, the upper cover and the second filter screen are of an integral structure, and the second filter screen extends upwards from the top surface of the upper cover.

In some embodiments, the housing includes a boss protruding from a bottom of the first receiving cavity, the filter device is disposed on the boss, and a groove surrounding the boss is formed at the bottom of the first receiving cavity.

In some embodiments, the filter device includes a sealing cover, a lower end of the first filter screen is fixed to a bottom of the first accommodating cavity, and an upper end of the first filter screen is connected to the sealing cover in a sealing manner and forms the second accommodating cavity together with the sealing cover and the bottom of the first accommodating cavity.

In some embodiments, the rotating device includes a body, a first connecting pipe and a second connecting pipe, the body defines at least one water inlet and the at least one water outlet, the at least one water inlet communicates with the second receiving chamber and the first connecting pipe, the at least one water outlet communicates with the second connecting pipe, and the first connecting pipe and the second connecting pipe are separated such that a pressure difference exists between a water flow at the at least one water inlet and a water flow at the at least one water outlet to drive the rotating device to rotate relative to the first filter screen.

In some embodiments, the body, the first connecting conduit and the second connecting conduit are a unitary structure, and the water inlet is sized larger than the water outlet.

In some embodiments, the second connecting conduit is built into the first connecting conduit, with a central axis of the first connecting conduit overlapping a central axis of the second connecting conduit.

In some embodiments, the filter system includes an inlet conduit and an outlet conduit disposed at the bottom of the housing, the outlet conduit is connected to the first connecting conduit, the inlet conduit is connected to the second connecting conduit, at least a portion of the inlet conduit is embedded in the outlet conduit, and a central axis of at least a portion of the inlet conduit embedded in the outlet conduit overlaps a central axis of the outlet conduit.

In some embodiments, the bottom of the second accommodating cavity is formed with a mounting groove, the bottom of the second accommodating cavity is convexly provided with a mating end, the mating end is provided with a first channel, the mating end is positioned in the mounting groove, the first connecting channel comprises a first connecting end extending downwards from the bottom of the body, the first connecting end is of a hollow structure, the second connecting pipeline comprises a second connecting end extending downwards from the bottom of the body, the second connecting end is of a hollow structure and is accommodated in the first connecting end, the rotating device is movably arranged at the bottom of the second accommodating cavity by the first connecting end extending into the mounting groove and the matching end extending into the second connecting end, the first connecting pipeline is connected with the water outlet pipeline through the first connecting end, and the second connecting pipeline is connected with the water inlet pipeline through the second connecting end.

In some embodiments, the first connection end is cylindrical, and a plurality of ribs are formed on an outer surface of the first connection end at intervals, and the plurality of ribs are distributed at intervals along an extending direction of the first connection end.

In some embodiments, at least two buckles are formed at the bottom of the body at intervals, the at least two buckles surround the first connecting end, a groove surrounding the mounting groove is formed at the bottom of the second accommodating cavity, an annular clamping piece is convexly arranged on the outer side wall of the groove, and the at least two buckles are clamped on the clamping piece so that the first connecting end extends into the mounting groove and the mating end extends into the second connecting end.

In some embodiments, the inner side wall of the groove is provided with at least one through hole, and the at least one through hole is communicated with the water outlet pipeline.

The washing appliance of the embodiment of the invention comprises the filtering system of any one of the above embodiments.

In the above washing appliance, water containing impurities (e.g., food residues) can enter the first receiving chamber through the water inlet, and the first filter screen can separate the water from the impurities. Simultaneously, when filtration system filters water through first filter screen, can make rotating device rotate for first filter screen in order to spray water to first filter screen from inside to outside through at least one water jet to reach the washing to first filter screen of realization when filtering water through first filter screen, can make the impurity of remaining on first filter screen break away from first filter screen like this, thereby guarantee the cleanliness of first filter screen, make filtration system be difficult to appear blockking up, guarantee filtration system's filter effect then. In addition, because the first filter screen can be cleaned in time, the problem that the filter system needs to be frequently disassembled and cleaned manually can be avoided.

In some embodiments, the washing appliance comprises a pump device connected to the filtration system.

In some embodiments, the washing appliance includes a base and a cavity, the cavity is mounted on the base, the cavity forms a cavity, a communication port communicated with the base is formed at the bottom of the cavity, the filtering system is mounted in the base, and the water inlet is communicated with the communication port.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic perspective view of a washing appliance in accordance with an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a filtration system according to an embodiment of the present invention;

FIG. 3 is a schematic plan view of a filtration system according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a filtration system according to an embodiment of the present invention;

FIG. 5 is an enlarged schematic view of portion I of the filtration system of FIG. 4;

FIG. 6 is a schematic perspective view of a rotary device of a filtration system according to an embodiment of the present invention;

FIG. 7 is a schematic plan view of a rotary device of a filtration system according to an embodiment of the present invention;

FIG. 8 is another schematic plan view of a rotary device of a filtration system in accordance with an embodiment of the present invention;

FIG. 9 is a schematic cross-sectional view of a rotary device of a filtration system according to an embodiment of the present invention;

fig. 10 is another schematic cross-sectional view of a rotating device of a filtration system according to an embodiment of the present invention.

Description of the main element symbols:

a washing appliance 100;

the filter system 10, the housing 11, the water inlet 111, the first accommodating cavity 112, the first buckle 1121, the second buckle 1122, the housing 113, the opening 1131, the first thread structure 1132, the first reinforcing rib 1133, the upper cover 114, the second thread structure 1141, the first groove 1142, the boss 115, the second groove 116, the filter device 12, the second accommodating cavity 121, the third groove 1210, the clip 1211, the through hole 1212, the first filter screen 122, the first clip 1221, the second clip 1222, the second reinforcing rib 1223, the sealing cover 123, the mounting groove 124, the mating end 125, the channel 1251, the rotating device 13, the water spout 131, the body 132, the third buckle 1321, the first connecting pipe 133, the first connecting end 1331, the third reinforcing rib 1332, the second connecting pipe 134, the second connecting end 1341, the water inlet 135, the second filter screen 14, the water inlet pipe 15, and the water outlet pipe 16;

base 20, cavity 30, chamber 31.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to 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", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 10, the filtering system 10 according to the embodiment of the present invention can be used in, but is not limited to, a washing appliance 100 according to the embodiment of the present invention. The embodiment of the present invention is illustrated with the filter system 10 being used to wash an appliance 100. The washing appliance 100 is for example a dishwasher.

In the present embodiment, the filter system 10 includes a housing 11, a filter device 12, and a rotating device 13. The housing 11 includes a water inlet 111. A first receiving chamber 112 is formed in the housing 11. The water inlet 111 is communicated with the first accommodating cavity 112. The filter device 12 is disposed in the first receiving chamber 112. The filter device 12 and the housing 11 together form a second receiving chamber 121. The filter device 12 comprises a first filter 122 forming a side wall of the second housing chamber 121. The first filter 122 is spaced apart from the sidewall of the first receiving chamber 112. The second receiving chamber 121 communicates with the first receiving chamber 112 through the first filter 122. The rotating device 13 is located in the second accommodating cavity 121. The first filter 122 surrounds the rotating means 13. Rotating means 13 comprises at least one water jet 131 directed towards first filter 122. Rotating device 13 is configured to rotate relative to first filter 122 to spray water through at least one water spray 131 toward first filter 122.

In this way, water containing impurities (e.g., food waste) can enter the first receiving chamber 112 through the water inlet 111, and the first filter 122 can separate the water from the impurities. Meanwhile, when the filtering system 10 filters water through the first filter screen 122, the rotating device 13 can be rotated relative to the first filter screen 122 to spray water to the first filter screen 122 from inside to outside through the at least one water spray nozzle 131, so that the first filter screen 122 is cleaned while filtering water through the first filter screen 122, impurities remained on the first filter screen 122 can be separated from the first filter screen 122, the cleanliness of the first filter screen 122 is ensured, the filtering system 10 is not easy to block, and then the filtering effect of the filtering system 10 is ensured. In addition, because first filter 122 is cleaned in a timely manner, this also avoids the need for frequent manual disassembly and cleaning of filter system 10.

When the rotating device 13 rotates relative to the first filter 122, the flow of the shower water ejected from the water ejection port 131 may provide a partial velocity perpendicular to the direction of the first filter 122 necessary for cleaning the first filter 122. Of course, it is preferable that the direction of the spray water stream sprayed from the water spray port 131 is directed to the first filter 122 perpendicularly, so that the spray water sprayed from the water spray port 131 has a large impact on the first filter 122 and can be sufficiently contacted with the first filter 122.

Again, rotation of rotating means 13 relative to first filter 122 may be achieved in different ways. For example, in some instances, rotation device 13 may be driven by a motor to rotate relative to first filter 122.

In the present embodiment, the washing appliance 100 includes a pump body device (not shown). The pump assembly is connected to the filtration system 10. The pump arrangement may power the filtration system 10. That is, in the present embodiment, the pump body device can also provide the power for rotating the rotating device 13, and the specific implementation will be described in the following embodiments.

Further, the washing appliance 100 may include a base 20 and a cavity 30. The chamber 30 is mounted on the base 20. The cavity 30 is formed with a chamber 31. The bottom of the chamber 31 is opened with a communication port 32 communicating with the inside of the base 20. The filtration system 10 is mounted within a base 20. The water inlet 111 communicates with the communication port 32. In this way, water in the chamber 31 can enter the filtration system 10 through the communication port 32 and the water inlet 111 in sequence. Thus, when a basket (not shown) is provided in the chamber 31, dishes can be placed in the basket, and can be washed by spraying water to the basket (by providing a spray arm in the chamber 31). Such that water including contaminants, such as food debris, washed from the dishes may enter the filter system 10 via the communication port 32 for filtration.

In some embodiments, filtration system 10 includes a second filter 14 disposed at water inlet 111. Second filter 14 communicates with first receiving chamber 112. The size of the mesh of second filter 14 is larger than the size of the mesh of first filter 122. As such, water including impurities may be primarily filtered through second filter 14 to filter out larger-sized impurities, thereby further ensuring cleanliness of first filter 122.

In the present embodiment, first filter 122 is cleaned while washing electric appliance 100 is washing. The direction of flow of the washed water (with impurities) within the filtration system 10 is shown by the dashed arrows in fig. 4. Wherein impurities may be collected outside the first filter 122.

In some embodiments, the housing 11 includes an outer shell 113 and an upper cover 114. The top of the housing 113 has an opening 1131. The upper cover 114 is installed on the housing 113 and covers the opening 1131 to form a first accommodating cavity 112 together with the housing 11. The upper cover 114 is provided with a water inlet 111. Upper cover 114 is of unitary construction with second filter 14. Second filter 14 extends upwardly from the top surface of cover 114. In this manner, the cover 114 may be removably attached to the housing 113, thereby facilitating removal and subsequent cleaning of the filtration system 10. In addition, since upper cover 114 and second filter 14 are of an integral structure, manufacturing is simple, and production cost can be reduced.

In the example shown in fig. 4, second filter 14 is in the form of a grid. In this way, preliminary filtration of water including impurities is facilitated.

In certain embodiments, the housing 113 is cylindrical. The top of the housing 113 is formed with a first thread structure 1132. The inner side of the bottom of the upper cover 114 is formed with a second screw structure 1141. The upper cover 114 is coupled to the housing 113 by the second screw structure 1141 and the first screw structure 1132. The top surface of the upper cover 114 defines a first recess 1142. The first groove 1142 surrounds the opening 1131. In this way, the upper cover 114 and the housing 113 are screwed, so that the stability and the sealing performance of the connection between the upper cover and the housing can be ensured, and the assembly and disassembly are convenient. Additionally, the first recess 1142 may be used to receive a seal ring (not shown) to facilitate installation of the filter system 10, i.e., the first recess 1142 may be used to mate with the base 20.

In some embodiments, the outer surface of the housing 113 is formed with a plurality of first ribs 1133 spaced apart. The plurality of first reinforcing ribs 1133 are spaced apart in the vertical direction y. Thus, the provision of the plurality of first reinforcing ribs 1133 can improve the structural strength of the housing 113.

In some embodiments, the housing 11 includes a boss 115 protruding from the bottom of the first receiving cavity 112. The filter device 12 is disposed on the boss 115. The bottom of the first receiving cavity 112 is formed with a second groove 116 surrounding the boss 115. In this manner, the filter device 12 is disposed at a position higher than the position of the second recess 116, so that the second recess 116 can provide a space for impurities (e.g., food residues) to accumulate, and can be discharged through the pipe after the washing is finished. And the first filter 122 is installed at a position higher than the second recess 116, so that the impurities separated from the water can be urged to be separated from the first filter 122.

In certain embodiments, the filter apparatus 12 includes a sealing cap 123. The lower end of the first filter 122 is fixed at the bottom of the first accommodating cavity 112. The upper end of the first filter screen 122 is connected with the sealing cover 123 in a sealing manner and forms a second accommodating cavity 121 together with the sealing cover 123 and the bottom of the first accommodating cavity 112. Therefore, it can be ensured that water in the first accommodating cavity 112 can only enter the second accommodating cavity 121 through the first filter screen 122, that is, the water in the second accommodating cavity 121 is filtered water.

In the present embodiment, a first stopper 1221 is formed at the lower end of the first filter 122. The upper end of the first filter 122 is formed with a second detent 1222. The bottom of the first accommodating cavity 112 is provided with a first buckle 1121. The end side of the seal cap 123 is provided with a second catch 1122. The first buckle 1121 is provided with a first locking position 1221 for fixing the lower end of the first filter 122 to the bottom of the first accommodating cavity 112. The second latch 1122 is latched to the second latch 1222 to connect the upper end of the first filter 122 with the sealing cover 123 in a sealing manner.

In the example shown in fig. 4 and 8, the number of the first stoppers 1221 is 4, and the 4 first stoppers 1221 are evenly spaced along the circumferential direction of the first filter 122. The number of the second detents 1222 is 4, and the 4 second detents 1222 are uniformly spaced along the circumference of the first filter 122. When the rotating device 13 rotates relative to the first filter 122, the positions of the sealing cover 123 and the first filter 122 are not changed.

In some embodiments, the outer surface of first filter 122 is formed with second reinforcing ribs 1223. Thus, the arrangement of the second reinforcing ribs 1223 can improve the structural strength of the first filter 122.

In some embodiments, the rotating device 13 includes a body 132, a first connecting duct 133, and a second connecting duct 134. The body 132 defines at least one water inlet 135 and at least one water jet 131. At least one water inlet 135 communicates with the second receiving chamber 121 and the first connecting pipe 133. At least one water jet 131 communicates with the second connecting pipe 134. First connecting conduit 133 is spaced from second connecting conduit 134 such that there is a pressure differential between the flow of water at the at least one water inlet 135 and the flow of water at the at least one water jet 131 to drive rotation device 13 to rotate relative to first filter 122. In this way, the pressure difference between the water flow at the at least one water inlet 135 and the water flow at the at least one water outlet 131 can be used to drive the rotating device 13 to rotate. Thus, the rotating device 13 integrates water inlet and water outlet.

In this embodiment, the water entering from the water inlet 135 can finally enter the pump body device via the first connection pipe 133 to be ready for use. Also, when washing is required, water can be drawn from the second receiving chamber 121 through the water inlet 135 by a pump device (wherein the pump device may include a washing pump) to wash dishes placed in the chamber 31.

For example, in the example shown in fig. 4 and 8, the number of water inlets 135 is one. The number of the water jetting ports 131 is one. When water in the second housing chamber 121 enters (e.g. can be powered by pump means) the water inlet 135 (the direction of water flow is shown by the dashed arrow), a pressure difference can be formed across the water inlet 135 due to the water flow, thereby driving the rotation device 13 to rotate. The turning device 13 in the example shown in fig. 8 will rotate in a counter clockwise direction.

In some embodiments, body 132, first connecting conduit 133, and second connecting conduit 134 are a unitary structure, and water inlet 135 is sized larger than water jet 131. Thus, the structure of the rotating device 13 is simple, and the structural stability of the connection between the body 132 and the first and second connecting

pipes

133 and 134 is better.

In some embodiments, the second connection pipe 134 is built into the first connection pipe 133. The central axis a of the first connecting duct 133 overlaps with the central axis of the second connecting duct 134. In this way, the first connecting pipe 133 and the second connecting pipe 134 share a common central axis, so that the rotating device 13 can be driven to rotate by the pressure difference between the water flow at the at least one water inlet 135 and the water flow at the at least one water outlet 131, and the balance and stability of the circumferential rotation of the rotating device 13 can be ensured. In addition, the arrangement of the second connecting duct 134 built in the first connecting duct 133 also facilitates the compact design of the rotating device 13.

In certain embodiments, the filtration system 10 includes an inlet conduit 15 and an outlet conduit 16 disposed at the bottom of the housing 11. The outlet conduit 16 is connected to the first connecting conduit 133. The water inlet pipe 15 is connected to the second connection pipe 134. At least part of the inlet conduit 15 is built into the outlet conduit 16. The central axis of at least a portion of the inlet conduit 15 built into the outlet conduit 16 overlaps the central axis b of the outlet conduit 16.

In this way, the outlet pipe 16 communicates with the first connecting pipe 133 and may form a first water flow path, the inlet pipe 15 communicates with the second connecting pipe 134 and may form a second water flow path, and the water flows in the two water flow paths are opposite in flow direction and independent of each other. In addition, because the inlet pipe 15 and the outlet pipe 16 share a common central axis, the stability of the water flow in the inlet pipe 15 and the outlet pipe 16 can be ensured, and the miniaturization design of the filtering system 10 is facilitated.

It should be noted that during the washing process, the pump body device pumps water through the water inlet 135 of the rotating device 13, and causes the rotating device 13 to rotate in the second housing chamber 121, and water pumped from the water inlet 135 can enter the pump body device through the water outlet pipe and be pumped into the chamber 31 through the pump body device for washing. Meanwhile, water flow is introduced through the water inlet pipe 15 and sprayed out from the water spraying port 131 of the rotating device 13, so that the first filter 122 is cleaned, and the purpose of cleaning the first filter 122 while rotating is achieved. The water for cleaning the first filter screen 122 may be provided by a branch flow at the rear end of the washing pump of the pump body device, or may be provided by a branch flow between the washing pump and the filter system 10 and provided by another separate pump.

Additionally, the inlet conduit 15 may also include a portion that branches off from the outer wall of the outlet conduit 16 (e.g., as shown in FIG. 2), which facilitates connection of the pump body assembly via the inlet conduit 15.

It will be appreciated that the rotating means 13 can be made to rotate circumferentially relative to the first filter 122, and in order to further improve the smoothness of the rotation of the rotating means 13, the water inlet direction of the water inlet 135 can be made to be tangential to the rotation circumference of the rotating means 13. Of course, in practical applications, the force generated by the water flow at the water inlet 135 may have a component in a tangential direction along the rotation circumference of the rotating device 13.

In some embodiments, the water jets 131 are elongated strips. Thus, the force of the water ejected from the water ejection port 131 is large.

In some embodiments, first filter 122 is cylindrical. The height of water jet 131 is equal to the height of first filter 122. Thus, the water sprayed from the water spray 131 can cover the first filter 122 in all directions, and the first filter 122 can be cleaned without dead angles.

In some embodiments, the bottom of the housing 11 is of unitary construction with the inlet conduit 15 and the outlet conduit 16. In this way, the formation of the inlet conduit 15 and the outlet conduit 16 is facilitated and the tightness of the inlet conduit 15 and the outlet conduit 16 can be ensured.

In some embodiments, the bottom of the second receiving cavity 121 is formed with a mounting groove 124. The bottom of the second receiving cavity 121 is protruded with a mating end 125. The mating end 125 defines a channel 1251. The mating end 125 is positioned within the mounting slot 124. The first connection pipe 133 includes a first connection end 1331 extending downward from the bottom of the body 132. The first connection end 1331 has a hollow structure. The second connecting conduit 134 includes a second connection end 1341 extending downward from the bottom of the body 132. Second connection end 1341 is a hollow structure. The second connection end 1341 is received in the first connection end 1331. The rotating device 13 is movably installed at the bottom of the second accommodating cavity 121 by the first connecting end 1331 extending into the installation groove 124 and the mating end 125 extending into the second connecting end 1341. The first connecting conduit 133 is connected to the outlet conduit 16 via a first connecting end 1331. The second connection pipe 134 is connected to the water inlet pipe 15 through a second connection end 1341. As such, the first connection end 1331 is positioned to be mounted in the mounting slot 124 and the second connection end 1341 is mounted to the mating end 125. The mounting recess 124 and the mating end 125 are configured to stabilize the rotating device 13 during rotation relative to the first filter 122.

In some embodiments, the first connection end 1331 is cylindrical. The outer surface of the first coupling end 1331 is formed with a plurality of third reinforcing ribs 1332 arranged at intervals. A plurality of third reinforcing ribs 1332 are spaced apart along the extending direction of the first coupling end 1331. In this way, the third reinforcing rib 1332 may improve the sealability of the first connection end 1331 in cooperation with the mounting groove 124, and the third reinforcing rib 1332 may also reduce sliding friction of the first connection end 1331 in rotation with respect to the mounting groove 124.

In some embodiments, the bottom of the body 132 is formed with at least two third clasps 1321 arranged at intervals. At least two second catches 1321 surround the first connection end 1331. The bottom of the second receiving chamber 121 is formed with a third groove 1210 surrounding the mounting groove 124. An annular clip 1211 protrudes from an outer side wall of the third groove 1210. At least two third snaps 1321 engage the snaps 1211 such that the first connection end 1331 extends into the mounting slot 124 and the mating end 125 extends into the second connection end 1341. Thus, the third latch 1321 is disposed in a manner of engaging the 1211, so as to improve the stability of the rotating device 13 movably mounted at the bottom of the second receiving cavity 121.

In the example shown in fig. 7, the number of the third snaps 1321 is 3. The 3 third clasps 1321 are provided at intervals.

In some embodiments, the inner sidewall of the third groove 1210 defines at least one through hole 1212. At least one through hole 1212 communicates with the outlet conduit 16. Thus, water accumulation in the third groove 1210 can be prevented.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", 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 do not necessarily refer 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A filter system for washing an appliance, the filter system comprising:

the water inlet is used for allowing water containing impurities to enter the first accommodating cavity;

the filtering device is arranged in the first accommodating cavity, a second accommodating cavity is formed by the filtering device and the shell together, the filtering device comprises a first filtering net forming the side wall of the second accommodating cavity, the first filtering net is separated from the side wall of the first accommodating cavity, the second accommodating cavity is communicated with the first accommodating cavity through the first filtering net, and the first filtering net is used for filtering water which flows into the second accommodating cavity from the first accommodating cavity and contains impurities;

a rotating device located within the second receiving cavity, the first filter screen surrounding the rotating device, the rotating device including at least one water jet facing the first filter screen, the rotating device configured to be rotatable relative to the first filter screen to spray water to the first filter screen through the at least one water jet.

2. The filter system according to claim 1, wherein the filter system comprises a second filter screen arranged at the water inlet, the second filter screen is communicated with the first accommodating cavity, and the size of the meshes of the second filter screen is larger than that of the meshes of the first filter screen.

3. The filtering system of claim 2, wherein the housing comprises a casing and an upper cover, the casing has an opening at the top, the upper cover is mounted on the casing and covers the opening and forms the first accommodating cavity together with the casing, and the upper cover is provided with the water inlet;

the upper cover and the second filter screen are of an integral structure, and the second filter screen extends upwards from the top surface of the upper cover.

4. The filter system according to claim 1, wherein the housing includes a boss protruding from a bottom of the first receiving chamber, the filter device is disposed on the boss, and a groove surrounding the boss is formed in the bottom of the first receiving chamber.

5. The filtering system as claimed in claim 1, wherein the filtering apparatus includes a sealing cover, a lower end of the first filter is fixed to a bottom of the first receiving chamber, and an upper end of the first filter is hermetically connected to the sealing cover and forms the second receiving chamber together with the sealing cover and the bottom of the first receiving chamber.

6. The filtration system of claim 1, wherein the rotating device comprises a body defining at least one water inlet and the at least one water spout, the at least one water inlet communicating with the second receiving chamber and the first connecting conduit, and a second connecting conduit communicating with the at least one water spout, the first connecting conduit being spaced apart from the second connecting conduit such that a pressure differential exists between the flow of water at the at least one water inlet and the flow of water at the at least one water spout to drive the rotating device to rotate relative to the first filter.

7. The filtration system of claim 6, wherein the body, the first connecting conduit, and the second connecting conduit are a unitary structure, and the water inlet is sized larger than the water outlet.

8. The filtration system of claim 6, wherein the second connecting conduit is disposed within the first connecting conduit, a central axis of the first connecting conduit overlapping a central axis of the second connecting conduit.

9. The filtration system of claim 8, comprising an inlet conduit and an outlet conduit disposed at the bottom of the housing, the outlet conduit connected to the first connecting conduit, the inlet conduit connected to the second connecting conduit, at least a portion of the inlet conduit disposed within the outlet conduit, a central axis of at least a portion of the inlet conduit disposed within the outlet conduit overlapping a central axis of the outlet conduit.

10. The filtration system of claim 9, wherein a mounting groove is formed at the bottom of the second receiving chamber, a mating end is protruded from the bottom of the second receiving chamber, a first passage is formed at the mating end, the mating end is located in the mounting groove, the first connecting pipe comprises a first connecting end extending downward from the bottom of the body, the first connecting end is of a hollow structure, the second connecting pipe comprises a second connecting end extending downward from the bottom of the body, the second connecting end is of a hollow structure, the second connecting end is received in the first connecting end, and the rotating device is movably mounted at the bottom of the second receiving chamber by the first connecting end extending into the mounting groove and the mating end extending into the second connecting end;

the first connecting pipeline is connected with the water outlet pipeline through the first connecting end, and the second connecting pipeline is connected with the water inlet pipeline through the second connecting end.

11. The filter system of claim 10, wherein the first coupling end is cylindrical, and a plurality of ribs are formed on an outer surface of the first coupling end at intervals, and are spaced apart along an extending direction of the first coupling end.

12. The filter system according to claim 10, wherein the bottom of the body is formed with at least two spaced apart clips surrounding the first connecting end, the bottom of the second receiving cavity is formed with a groove surrounding the mounting groove, an outer sidewall of the groove is convexly provided with an annular snap member, and the at least two clips snap the snap member such that the first connecting end extends into the mounting groove and the mating end extends into the second connecting end.

13. The filtration system of claim 12, wherein the recess defines at least one through-hole in an inner sidewall thereof, the at least one through-hole communicating with the outlet conduit.

14. A washing appliance comprising a filter system according to any one of claims 1-13.

15. The washing appliance according to claim 14, characterized in that it comprises a pump device connected to the filtering system.

16. The washing appliance according to claim 14, wherein the washing appliance comprises a base and a cavity, the cavity is mounted on the base, the cavity forms a chamber, a communication port communicated with the base is formed at the bottom of the chamber, the filtering system is mounted in the base, and the water inlet is communicated with the communication port.