CN209863733U - Filtering system and household appliance with same - Google Patents

Abstract

The utility model discloses a filtration system and have its domestic appliance. The filtration system includes: the cylindrical surface filtering component can rotate relative to the water collecting cup, the connecting piece comprises a first sub-connecting piece and a second sub-connecting piece which are coaxially arranged and can rotate relative to each other, one of the first sub-connecting piece and the second sub-connecting piece is fixedly connected with the cylindrical surface filtering component, and the other sub-connecting piece is fixedly connected with the water collecting cup. According to the utility model discloses filtration system, through setting up the connecting piece, can reduce the cylinder filtering component and catchment the frictional resistance between the cup, resistance when having reduced the cylinder filtering component rotation greatly guarantees that cylinder filtering component can filter the residue of aquatic better at the during operation to the connecting piece can play sealed effect, can guarantee cylinder filtering component and catchment between the cup gapless, thereby prevents that the food waste in the cylinder filtering component from revealing to the outside.

Description

Filtering system and household appliance with same

Technical Field

The utility model relates to a domestic appliance technical field particularly, relates to a filtration system and have its domestic appliance.

Background

At present most dish washer are when carrying out the during operation, and the cylinder filtering component is immovable, and this can the greatly reduced washing in-process cylinder filtering component's effective utilization area, even the cylinder filtering component of a small number of cleaning machines can rotate at the washing in-process, but it leaks the sediment seriously, and rotates unsmoothly.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least. Therefore, the utility model provides a filtration system, this filtration system realize under the smooth and easy rotatory prerequisite of cylinder filter unit, can solve food waste from cylinder filter unit and the problem of catchmenting cup cooperation and being connected between revealing.

According to the utility model discloses filtration system includes: a water collecting cup; a cylindrical filter element disposed within the water collection cup, the cylindrical filter element rotatable relative to the water collection cup; the connecting piece comprises a first sub-connecting piece and a second sub-connecting piece, the first sub-connecting piece and the second sub-connecting piece are coaxially arranged and can be connected in a relatively rotating mode, one of the first sub-connecting piece and the second sub-connecting piece is fixedly connected with the cylindrical surface filtering component, and the other of the first sub-connecting piece and the second sub-connecting piece is fixedly connected with the water collecting cup.

According to the utility model discloses filtration system, through setting up the connecting piece, realize the indirect connection of cylinder filtering component and cup that catchments, and can reduce cylinder filtering component and the slip frictional resistance between the cup that catchments, the resistance when cylinder filtering component rotates has been reduced greatly, guarantee that cylinder filtering component can filter the residue of aquatic better at the during operation, and the connecting piece can play sealed effect, can guarantee cylinder filtering component and catchment zero clearance between the cup, thereby can prevent that cylinder filtering component's inside food residue from revealing to cylinder filtering component's outside through cylinder filtering component and the cooperation department between the cup that catchments.

According to the utility model discloses a some embodiments, the cup that catchments has water drainage tank, the cylinder filtering component has the bottom plate, the below of bottom plate is equipped with downwardly extending's cylinder installation department, the cylinder installation department stretches into in the water drainage tank, just the connecting piece sets up the cylinder installation department with water drainage tank's connection cooperation department.

Specifically, the connecting piece is arranged between the outer peripheral surface of the cylindrical surface mounting part and the wall of the drainage groove.

Specifically, one of the first sub-connecting piece and the second sub-connecting piece is fixedly connected with the cylindrical surface mounting part, and the other of the first sub-connecting piece and the second sub-connecting piece is fixedly connected with the wall of the drainage groove.

Optionally, the base plate is a solid plate.

According to some embodiments of the utility model, the connecting piece is the snap ring, the snap ring includes mutual joint and first joint ring and the second joint ring that can the rotation each other, first sub-connecting piece does first joint ring, the second connecting piece does the second joint ring.

According to the utility model discloses a some embodiments, the connecting piece is the bearing unit spare, first sub-connecting piece is the bearing inner race, the sub-connecting piece of second is the bearing inner race, the bearing inner race cover is established in the bearing inner race, the bearing inner race with form annular space between the bearing inner race, a plurality of balls set up in the annular space, the ball with the bearing inner race rolling contact.

Further, the bearing component further includes: the middle retainer is sleeved between the bearing outer ring and the bearing inner ring, a plurality of ball holes are formed in the middle retainer, and the balls are arranged in the ball holes.

Specifically, the bearing outer ring is provided with an outer ring buckle, and the outer ring buckle is fixedly clamped with one of the water collecting cup and the cylindrical surface filtering component; the bearing inner ring is provided with an inner ring buckle, and the inner ring buckle is fixedly connected with the water collecting cup and the other one of the cylindrical surface filtering components in a clamping manner.

According to some embodiments of the invention, the filtration system further comprises: a wash pump for drawing water from within the water collection cup, the cylindrical filter element configured to rotate when the wash pump draws water.

Further, the water collecting cup is provided with a water pumping pipeline, and the washing pump is communicated with the water pumping pipeline.

According to the utility model discloses a some embodiments, the washing passageway has been seted up on the inner wall of cup catchments, be provided with in the washing passageway: an insert sheet having a water outlet width smaller than a water inlet width of the insert sheet, wherein water in the cleaning passage flows through the water inlet of the insert sheet to reach the water outlet of the insert sheet and is then sprayed onto the cylindrical filter member.

Further, the cleaning channel is communicated with the water pumping pipeline.

According to another aspect of the present invention, a household appliance comprises the above-mentioned filtering system.

Drawings

FIG. 1 is an exploded schematic view of a water collection cup, cylindrical filter component, bearing component, and insert piece of a filtration system;

FIG. 2 is a schematic cross-sectional view of a filtration system

FIG. 3 is an enlarged partial schematic view at A in FIG. 2;

FIG. 4 is a schematic cross-sectional view of the filtration and supply water circuit of the filtration system from a top view;

FIG. 5 is a schematic top view of a cross-sectional view of the filter and feed waterway bearing assembly of the filtration system;

FIG. 6 is a schematic view of yet another embodiment of a cylindrical filter element;

FIG. 7 is a schematic view of a partial assembly of the cylindrical filter element of FIG. 6 with a water collection cup.

Reference numerals:

the water-saving cleaning device comprises a filtering system 100, a water collecting cup 1, a water draining groove 11, a water draining groove wall 111, a water pumping pipeline 15, a cleaning channel 11, a water dividing valve cavity 12, a water draining pump shell 14, a motor pump 16, a bearing part (connecting piece) 2, a ball 21, a bearing outer ring 22, an outer ring buckle 221, a bearing inner ring 23, a cylindrical surface filtering part 3, an upper ring part 31, a lower ring part 32, a vertical rib 33, a flow deflector 34, a bottom plate 35, a cylindrical surface installing part 36, an embedding piece 4, a plane filter screen 5 and a lifting cup 6.

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 drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are 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 therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the following, referring to fig. 1-7, a filter system 100 according to an embodiment of the present invention will be described in detail, and the filter system 100 may be used in household appliances, such as a dishwasher, a fruit and vegetable washing machine, a medical washing machine, etc.

Referring to fig. 1-2, a filtration system 100 according to an embodiment of the present invention may include: the water collecting cup comprises a water collecting cup 1, a cylindrical filtering part 3 and a connecting part 2, wherein the cylindrical filtering part 3 is arranged in the water collecting cup 1, the cylindrical filtering part 3 can rotate relative to the water collecting cup 1, the water collecting cup 1 is of a cup-shaped structure with a hollow cavity inside, in a specific embodiment, a spray arm (not shown in the figure) of a household appliance is positioned above the water collecting cup 1, when the spray arm starts to work, water sprayed from the spray arm flows into the water collecting cup 1 along the trend after the water passes through a to-be-washed part (for the convenience of understanding, the filtering system 100 is applied to a dishwasher, and the to-be-washed part is tableware for example), so that the one-way work of the filtering system 100 is completed, and the next washing process can be prepared.

Specifically, as shown in fig. 1-2, the upper end opening of the water collecting cup 1 is located right above the water collecting cup 1, the cylindrical filtering component 3 can enter from the upper end of the water collecting cup 1 and can be rotatably placed in the hollow cavity of the water collecting cup 1, specifically, the cylindrical filtering component 3 can rotate within a range of 360 degrees, water flowing through the cylindrical filtering component 3 can be filtered, residues in the water can be filtered, and the filtered water can flow out from the cylindrical filtering component 3 to be used as a water source for cleaning tableware by the next spray arm. The lateral wall of the water collecting cup 1 is provided with a first opening which is positioned below the lateral surface of the water collecting cup 1 (namely, the water pumping pipeline 15 mentioned below), and the washing pump can be connected with the first opening of the lateral wall of the water collecting cup 1, so that when the washing pump works, water in the water collecting cup 3 can be pumped, a continuous water source is provided for the spray arm, and the high working reliability of the filtering system 100 is further ensured.

Preferably, the water collecting cup 1 has a water collecting cup mounting groove for mounting the cylindrical filter member 1 therein, and the rotation axis of the cylindrical filter member 3 coincides with the central axis of the water collecting cup mounting groove, so that the cylindrical filter member 3 can smoothly and stably rotate in the water collecting cup 1 without interfering with other parts of the water collecting cup 1.

Further, as shown in fig. 2, a connection member 2 is provided at a connection fitting of the cylindrical filter member 3 and the water collecting cup 1. The connecting piece 2 comprises a first sub-connecting piece and a second sub-connecting piece, the first sub-connecting piece and the second sub-connecting piece are coaxially arranged and can be connected in a relatively rotating mode, one of the first sub-connecting piece and the second sub-connecting piece is fixedly connected with the cylindrical surface filtering part 3, and the other of the first sub-connecting piece and the second sub-connecting piece is fixedly connected with the water collecting cup 1.

It should be noted that, in the present invention, "fixedly connected" means that there is no relative movement between the two, and it is not limited that the two must be an integral and inseparable structure, for example, when the first sub-connecting member is fixedly connected to the cylindrical surface filtering component 3, the relative position between the first sub-connecting member and the cylindrical surface filtering component 3 is fixed, and there is no relative movement between the two; when the second sub-connecting piece is fixedly connected with the water collecting cup 1, the relative position of the second sub-connecting piece and the water collecting cup 1 is fixed, and the second sub-connecting piece and the water collecting cup do not move relatively. The connection modes of the two can be called as fixed connection through threaded connection, interference fit, clamping, welding and the like.

For preceding cylinder filtering component 3 and the rotation of catchmenting 1 direct contact of cup, the frictional resistance between cylinder filtering component 3 and the catchmenting cup 1 is the condition of sliding frictional resistance, it sets up connecting piece 2 to locate through the cooperation of being connected at cylinder filtering component 3 and catchmenting cup 1, and the first sub-connecting piece and the second sub-connecting piece of connecting piece 2 can rotate relatively, can reduce the frictional resistance between cylinder filtering component 3 and the catchment cup 1, the resistance when cylinder filtering component 3 rotates has been reduced greatly, thereby guarantee that cylinder filtering component 3 can filter the residue in the aquatic better at the during operation, can avoid the abnormal sound that cylinder filtering component 3 and catchmenting cup 1 direct contact brought simultaneously. And since the coupling member 2 can form a seal at the coupling engagement portion of the cylindrical filter member 3 and the water collecting cup 1, in other words, when the coupling member 2 is disposed between the cylindrical filter member 3 and the water collecting cup 1, it can be ensured that there is no gap between the cylindrical filter member 3 and the water collecting cup 1, so that it can prevent the food residues inside the cylindrical filter member 3 from leaking to the outside of the cylindrical filter member 3 through the engagement portion between the cylindrical filter member 3 and the water collecting cup 1. In short, the connecting member 2 can both reduce the rotational resistance of the cylindrical filter member 3 and prevent food residues inside the cylindrical filter member 3 from flowing outside the cylindrical filter member 3.

According to the utility model discloses filtration system 100, through setting up connecting piece 2, realize cylinder filter unit 3 and the indirect connection of cup 1 that catchments, and can reduce cylinder filter unit 3 and the slip frictional resistance who catchments between the cup 1, the resistance when cylinder filter unit 3 rotates has reduced greatly, guarantee that cylinder filter unit 3 can filter the residue of aquatic better at the during operation, and connecting piece 2 can play sealed effect, can guarantee cylinder filter unit 3 and catchment between the cup 1 zero clearance, thereby can prevent that cylinder filter unit 3's inside food residue from revealing to cylinder filter unit 3's outside through cylinder filter unit 3 and the cooperation department of catchmenting between the cup 1.

Preferably, as shown in fig. 1, the exterior of the cylindrical filter component 3 is provided with a plurality of baffles 34 spaced circumferentially thereabout. Wherein the rotary power of the cylindrical surface filtering component 3 comes from the water flow discharged rapidly from the washing water outlet, therefore, the guide vanes 34 are arranged in the circumferential direction of the cylindrical surface filtering component 3, thereby improving the driving effectiveness of the water flow to the cylindrical surface filtering component 3 and ensuring the rotary power of the cylindrical surface filtering component 3. In addition, energy can be saved by driving the cylindrical filtering part 3 to rotate by the water flow rapidly discharged from the washing water outlet.

Alternatively, as shown in fig. 1, the cylindrical filter member 3 may include: an upper ring part 31, a lower ring part 32, and a plurality of vertical ribs 33, the upper ring part 31 being located above the lower ring part 32, the upper ring part 31 and the lower ring part 32 being arranged spaced apart in the up-down direction. Both ends of each vertical rib 33 are connected to the upper ring portion 31 and the lower ring portion 32, respectively, and the plurality of vertical ribs 33 are arranged at intervals in the circumferential direction.

Go up ring portion 31 can keep the stable in structure of cylinder filtering component 3, makes cylinder filtering component 3 at rotatory in-process, and the center of going up ring portion 31 can keep at rotation center, avoids the cylinder filtering component 3 that leads to because the velocity of flow of washing liquid is too fast to take place to incline, influences the rotation of cylinder filtering component 3. Go up and link to each other through a plurality of spaced apart vertical muscle 33 between ring portion 31 and the lower ring portion 32, make the connection between upper ring portion 31 and the lower ring portion 32 stable, be provided with a plurality of spaced apart water conservancy diversion pieces 34 on each vertical muscle 33 simultaneously, can improve the area of contact of cylindrical filter component 3 with rivers, can more easily drive cylindrical filter component 3 at the in-process that the washing water flows and rotate.

Further, the baffle 34 is arranged outside the vertical rib 33, so that the washing pump can pump water from the tangential direction in the water collecting cup 1 in the washing process of the filtering system 100, and the cylindrical surface filtering component 3 is rotated by the acting force of the baffle 34, thereby improving the effective utilization area of the cylindrical surface filtering component 3.

Of course, the present invention is not limited thereto, and the baffle 34 may also be disposed inside the vertical rib 33, that is, the baffle 34 is located inside the cylindrical surface filter component 3.

The cylindrical filter element 3 may also be of the construction shown in fig. 6-7, unlike the construction of the cylindrical filter element 3 shown in fig. 1. Referring to the embodiment shown in fig. 6-7, the cylindrical filtering component 3 has a bottom plate 35, a cylindrical mounting portion 36 extending downward is arranged below the bottom plate 35, the water collecting cup 1 has a water draining groove 11, the cylindrical mounting portion 36 extends into the water draining groove 11, and the connecting piece 2 is arranged at the connecting matching position of the cylindrical mounting portion 36 and the water draining groove 11, so as to be beneficial to reducing the friction between the cylindrical mounting portion 36 and the water draining groove 11, when the cylindrical filtering component 3 rotates relative to the water collecting cup 1, the connecting piece 2 plays a role in reducing the friction, and thus the relative movement between the cylindrical filtering component 3 and the water collecting cup 1 is ensured to be more stable.

In the embodiment shown in fig. 7, the connector 2 is disposed between the outer peripheral surface of the cylindrical surface mounting portion 36 and the drain groove wall 111 of the drain groove 11.

One of the first sub-connector and the second sub-connector is fixedly connected with the cylindrical surface mounting part 36, and the other of the first sub-connector and the second sub-connector is fixedly connected with the wall 111 of the drainage groove. For example, the first sub-connector is fixedly connected to the wall 111 of the drain groove, and the second sub-connector is fixedly connected to the outer peripheral surface of the cylindrical surface mounting portion 36.

Alternatively, the bottom plate 35 is a solid plate, and the space surrounded by the inner peripheral surface of the cylindrical surface mounting portion 36 becomes a drainage passage. Compared with the previous drainage channel 11, after the space enclosed by the inner peripheral surface of the cylindrical surface mounting part 36 is used as a drainage channel, the cross-sectional area of the drainage channel is reduced to a certain extent, sewage can be completely discharged through the drainage channel, and the slag leakage prevention effect is better.

When the bottom of the cylindrical filter component 3 is the lower ring part 32 shown in fig. 1, the connecting area between the cylindrical filter component 3 and the water collecting cup 1 is large, and the number of potential slag leakage points is relatively large, and the bottom plate 35 shown in fig. 6 is arranged at the bottom of the cylindrical filter component 3, so that the contact area and the contact point at the connecting part of the cylindrical filter component 3 and the water collecting cup 1 are reduced, and the potential slag leakage points between the cylindrical filter component 3 and the water collecting cup 1 are reduced. Meanwhile, the connecting piece 2 is arranged at the joint of the cylindrical surface mounting part 36 and the drainage groove 11, so that the slag leakage risk can be further reduced.

In an embodiment of the first aspect, the connecting member is a snap ring, the snap ring includes a first snap ring and a second snap ring that are engaged with each other and can rotate with each other, wherein the first sub-connecting member is a first snap ring, the second sub-connecting member is a second snap ring, the first snap ring and the second snap ring are engaged with each other to form a snap ring, one of the first snap ring and the second snap ring forms a full-circle snap groove, the other of the first snap ring and the second snap ring forms a snap portion, and the snap portion is engaged with the snap groove to realize mutual rotational connection of the first snap ring and the second snap ring. And because the whole circle of draw-in groove sets up, can guarantee the relative whole circle of first joint ring and second joint ring and rotate to guarantee that cylinder filtering component 3 rotates for the whole circle of cup 1 that catchments.

In the second embodiment, the connecting element 2 is a bearing element 2, the first sub-connecting element is a bearing outer ring 22, the second sub-connecting element is a bearing inner ring 23, as shown in fig. 3 and 5, the bearing inner ring 23 is sleeved in the bearing outer ring 22, the bearing inner ring 23 and the bearing outer ring 22 can rotate relatively, an annular space is formed between the bearing outer ring 22 and the bearing inner ring 23, the plurality of balls 21 are arranged in the annular space, and the balls 21 are in rolling contact with the bearing outer ring 22 and the bearing inner ring 23. An outer ring ball groove may be formed on an inner surface of the bearing outer ring 22, an inner ring ball groove may be formed on an outer surface of the bearing inner ring 23, and the balls 21 are in rolling contact with the outer ring ball groove and the inner ring ball groove at the same time.

The bearing outer ring 22 can be fixedly connected with one of the cylindrical surface filtering component 3 and the water collecting cup 1, the bearing inner ring 23 can be fixedly connected with the other one of the cylindrical surface filtering component 3 and the water collecting cup 1, so that the cylindrical surface filtering component 3 and the water collecting cup 1 are indirectly connected, and the bearing outer ring 22 can rotate relative to the bearing inner ring 23, so that the cylindrical surface filtering component 3 and the water collecting cup 1 are ensured to rotate relatively.

In the embodiment shown in fig. 6-7, the bearing inner race 22 may be fixedly attached to one of the cylindrical surface mounting portion 36 and the drain groove wall 111, and the bearing outer race 23 may be fixedly attached to the other of the cylindrical surface mounting portion 36 and the drain groove wall 111. For example, the bearing outer race 22 is fixedly connected to the drain groove wall 111, the bearing inner race 23 is fixedly connected to the outer peripheral surface of the cylindrical surface mounting portion 36, and the balls 21 are provided between the bearing outer race 22 and the bearing inner race 23.

In the embodiment shown in fig. 2-3, the inner bearing ring 23 can be sleeved on the cylindrical filtering component 3 to realize the fixed connection between the inner bearing ring 23 and the cylindrical filtering component 3, the outer bearing ring 22 can be sleeved on the water collecting cup 1 to realize the fixed connection between the outer bearing ring 22 and the water collecting cup 1, a gap is formed between the inner bearing ring 23 and the inner bearing ring 23, specifically, the gap forms an annular space, the plurality of balls 21 are suitable for being placed in the annular space, and the balls 21 are in rolling contact with the outer bearing ring 22 and the inner bearing ring 23, therefore, when the cylindrical filtering component 3 rotates relative to the water collecting cup 1, at this time, the balls 21 are subjected to the thrust of the relative rotation between the inner bearing ring 23 and the inner bearing ring 23, therefore, the plurality of balls 21 rotate, thereby realizing that the sliding friction resistance between the cylindrical filtering component 3 and the water collecting cup 1 becomes the rolling friction resistance, thereby ensuring that the resistance to rotation between the cylindrical surface filtering component 3 and the water collecting cup 1 is smaller.

Further, the bearing member 2 may further include: an intermediate retainer (not shown in the figure), which is sleeved between the bearing outer ring 22 and the bearing inner ring 23 and is provided with a plurality of ball holes, the balls 21 are installed in the ball holes, and the balls 21 protrude from the inner circumferential surface and the outer circumferential surface of the intermediate retainer in the radial direction of the intermediate retainer, by providing the intermediate retainer, not only can the intermediate retainer be adapted to cooperate with the balls 21, when the balls 21 roll, the balls 21 can be spaced, thereby ensuring that the balls 21 can roll independently, preventing the cylindrical surface filtering component 3 from poor stability in rotation due to interference among the balls 21, ensuring high operational reliability of the cylindrical surface filtering component 3, and the balls 21 protrude from the inner circumferential surface and the outer circumferential surface of the intermediate retainer in the radial direction of the intermediate retainer, therefore, after the bearing component 2 is arranged between the cylindrical surface filtering component 3 and the water collecting cup 1, can guarantee that cylinder filter element 3 and the leakproofness of catchmenting between the cup 1 are better, very big degree has blockked food waste's passageway to can prevent that cylinder filter element 3's inside food waste from revealing to cylinder filter element 3's outside through the cooperation department between cylinder filter element 3 and the cup 1 of catchmenting.

In some alternative embodiments, the first sub-connector may be fixedly connected to one of the cylindrical filter member 3 and the water collection cup 1 by means of a threaded connection, and the second sub-connector may be fixedly connected to the other of the cylindrical filter member 3 and the water collection cup 1 by means of a threaded connection; or, the first sub-connector may be fixedly connected with one of the cylindrical surface filtering component 3 and the water collecting cup 1 in an interference fit manner, and the second sub-connector may be fixedly connected with the other one of the cylindrical surface filtering component 3 and the water collecting cup 1 in an interference fit manner.

In other alternative embodiments, the first sub-connector is adapted to engage with one of the water collection cup 1 and the cylindrical filter element 3, and the second sub-connector is adapted to engage with the other of the water collection cup 1 and the cylindrical filter element 3, i.e., the second sub-connector can engage with the cylindrical filter element 3 when the first sub-connector engages with the water collection cup 1; similarly, when the first sub-connector is connected with the cylindrical surface filtering component 3 in a clamping manner, the second sub-connector can be connected with the water collecting cup 1 in a clamping manner, so that the bearing component 2 is fixedly connected with the water collecting cup 1 and the cylindrical surface filtering component 3, the connector 2 is connected with the water collecting cup 1 and the cylindrical surface filtering component 3 in a clamping manner, the connector 2 can be reliably connected with the water collecting cup 1 and the cylindrical surface filtering component 3, and the connection and the disassembly are convenient, so that the assembly and the disassembly of the filtering system 100 are convenient.

Specifically, referring to fig. 1 and 3, the bearing outer ring 22 has an outer ring buckle 221, and the outer ring buckle 221 is fixed to the water collecting cup 1 in a clamping manner, so that the bearing outer ring 22 is connected to the water collecting cup 1. The bearing inner ring 23 is provided with an inner ring buckle (not shown in the figure), and the inner ring buckle is fixedly clamped with the cylindrical surface filtering component 3, so that the connection between the bearing inner ring 23 and the cylindrical surface filtering component 3 is realized, and further, the bearing component 2 is fixedly connected with the water collecting cup 1 and the cylindrical surface filtering component 3.

In some alternative embodiments, the bearing component 2 may comprise only: a plurality of balls 21, a plurality of balls 21 can be rollably cooperated at the connection cooperation position of the cylindrical surface filtering component 3 and the water collecting cup 1, that is, the connection cooperation position of the cylindrical surface filtering component 3 and the water collecting cup 1 has a certain gap, and a plurality of balls 21 are suitable for being placed in the gap, a plurality of balls 21 are in contact with the cylindrical surface filtering component 3 and the water collecting cup 1, when the cylindrical surface filtering component 3 rotates relative to the water collecting cup 1, the rotation of the plurality of balls 21 can be driven, thereby realizing that the friction resistance between the cylindrical surface filtering component 3 and the water collecting cup 1 is changed into rolling friction resistance, and further ensuring that the resistance of the rotation between the cylindrical surface filtering component 3 and the water collecting cup 1 is smaller. And, the cylindrical filtering component 3 is indirectly connected with the water collecting cup 1 through the ball 21, so that the cylindrical filtering component 3 can move more stably relative to the water collecting cup 1.

For example, as shown in fig. 1-3, the balls 21 are arranged at the connecting and matching part of the lower ring part 32 and the water collecting cup 1; alternatively, as shown in fig. 6 to 7, the balls 21 are disposed between the outer peripheral surface of the cylindrical surface mounting portion 36 and the drain groove wall 111 of the drain groove 11.

In some alternative embodiments, the bearing component 2 may comprise only: the bearing outer ring 22 is fixed to the drain groove wall 111 of the water collecting cup 1, and the ball 21 is disposed between the outer peripheral surface of the cylindrical surface mounting portion 36 and the bearing outer ring 22. Or the bearing component 2 may comprise only: the ball 21 and the bearing inner ring 23, the bearing inner ring 23 and the cylindrical surface mounting portion 36 fixed on the outer peripheral surface, the ball 21 is set between the drain groove wall 111 and the bearing inner ring 23.

Further, the filtering system 100 may further include: the washing pump, the washing pump is used for drawing water from the inside of the water collecting cup 1, the cylindrical filtering component 3 is constructed to rotate when the washing pump draws water, specifically, the washing pump is communicated with the inside of the water collecting cup 1, the washing pump is used for drawing water from the inside of the water collecting cup 1 to circulate water, the cylindrical filtering component 3 is arranged in the water collecting cup 1, and when the washing pump is used for drawing water from the inside of the water collecting cup 1, the cylindrical filtering component 3 rotates relative to the water collecting cup 1 under the driving of water flow.

Further, referring to fig. 1, the water collecting cup 1 has a pumping duct 15, and the washing pump is communicated with the pumping duct 15.

In the embodiment, the washing water in the sump cup 1 is flowed by the operation of the washing pump, and the cylindrical filter member 3 is rotated when the washing pump pumps the water. That is, the rotational power of the cylindrical filter element 3 is derived from the kinetic energy of the water flow generated by the water flow drawn by the wash pump when it is turned on, in other words, when the filter system 100 is turned on and dishes are washed, the wash pump is turned on and drives the water flow. Wherein the washing water is rapidly discharged from the water collecting cup 1 under the driving of the washing pump, thereby generating a rapidly flowing water flow, and further forming a rotational flow in the water collecting cup 1, thereby driving the cylindrical filtering part 3 to rotate. When the cylindrical surface filtering component 3 rotates, the filter residue effect can be improved.

Further, when the washing pump is used for pumping away the washing water in the water collecting cup 1, the washing water flows towards one direction, the washing water generates friction force with the surface of the cylindrical surface filtering component 3, and further the cylindrical surface filtering component 3 rotates, the energy for pumping water by the washing pump is utilized by the arrangement, the washing water can drive the cylindrical surface filtering component 3 to rotate, a driving part is not required to be independently arranged to drive the cylindrical surface filtering component 3, the space is saved, the cost of the filtering system 100 is reduced simultaneously, and the problem that the food residues are accumulated at the same position on the cylindrical surface filtering component 3 is solved.

Further, referring to fig. 4 to 5, a cleaning channel 11 is formed on the inner wall of the water collecting cup 1, an insert plate 4 is disposed in the cleaning channel 11, the width of a water outlet of the insert plate 4 is smaller than the width of a water inlet of the insert plate 4, and water in the cleaning channel 11 reaches the water outlet of the insert plate 4 through the water inlet of the insert plate 4 and is then sprayed onto the cylindrical surface filter component 3. The water velocity at the water outlet of the insert sheet 4 can be increased, so that the water flow force sprayed onto the cylindrical surface filter component 3 is increased, the cylindrical surface filter component 3 can be cleaned quickly, and the influence on the washing effect caused by the accumulation of food residues on the surface of the cylindrical surface filter component 3 is avoided.

Further, the cleaning channel 11 is communicated with the water pumping pipeline 15, the motor pump 16 is communicated with the cleaning channel 11, water in the water pumping pipeline 15 can be shunted to enter the cleaning channel 11 under the action of the motor pump 16, is pressurized through the motor pump 16 and then is sprayed onto the cylindrical surface filtering component 3 through the embedding sheet 4, and therefore the cylindrical surface filtering component 3 is cleaned for 360 degrees. When the washing pump works, water in the cleaning channel 11 can flow through the water pumping pipeline 15 and then enter the washing pump, the washing pump pumps the water into the spray arm to spray the water, and the operation is circulated.

Further, as shown in fig. 1-2, the filtering system 100 may further include a planar filter 5 and a lifting cup 6, the planar filter 5 and the lifting cup 6 may be sleeved on the cylindrical filtering component 3, the planar filter 5 and the lifting cup 6 may perform coarse filtering on the washing water entering into the cylindrical filtering component 3 (cylindrical filter), and may filter large residues, such as bones, so as to prevent the cylindrical filtering component 3 from being stuck during rotation.

Further, as shown in fig. 2, the water collecting cup 1 may include a water dividing valve cavity 12 and a drainage pump shell 14, the water dividing valve is adapted to be placed in the water dividing valve cavity 12 to divide the water flow at the rear end of the washing pump and then to pass through the spray arms at different positions, the drainage pump is adapted to be placed in the drainage pump shell 14, and after the washing operation of the filtering system 100 is completed, the drainage pump may discharge the washed sewage out of the filtering system 100.

Alternatively, the filter system 100 may be a filter system 100 of a dishwasher or a garden stuff washer or a medical washer or the like.

According to another aspect of the present invention, a household appliance includes the filtering system 100 of the above embodiment.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean 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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A filtration system, comprising:

a water collecting cup;

a cylindrical filter element disposed within the water collection cup, the cylindrical filter element rotatable relative to the water collection cup;

the connecting piece comprises a first sub-connecting piece and a second sub-connecting piece, the first sub-connecting piece and the second sub-connecting piece are coaxially arranged and can be connected in a relatively rotating mode, one of the first sub-connecting piece and the second sub-connecting piece is fixedly connected with the cylindrical surface filtering component, and the other of the first sub-connecting piece and the second sub-connecting piece is fixedly connected with the water collecting cup.

2. The filtration system of claim 1, wherein the water collection cup has a water drainage channel, the cylindrical filtration component has a bottom plate, a downwardly extending cylindrical mounting portion is provided below the bottom plate, the cylindrical mounting portion extends into the water drainage channel, and the connecting piece is provided at the connecting fitting of the cylindrical mounting portion and the water drainage channel.

3. The filtration system of claim 2, wherein the connector is disposed between an outer peripheral surface of the cylindrical mounting portion and a drain channel wall of the drain channel.

4. The filtration system of claim 2, wherein one of the first and second sub-connectors is fixedly attached to the cylindrical mounting portion and the other of the first and second sub-connectors is fixedly attached to the drain channel wall.

5. The filtration system of claim 2, wherein the bottom plate is a solid plate.

6. The filtration system of any one of claims 1 to 5, wherein the connector is a snap ring comprising a first snap ring and a second snap ring that snap into each other and are rotatable with respect to each other, the first sub-connector being the first snap ring and the second sub-connector being the second snap ring.

7. The filtration system of any one of claims 1 to 5, wherein the connector is a bearing component, the first sub-connector is an outer bearing ring, the second sub-connector is an inner bearing ring, the inner bearing ring is sleeved in the outer bearing ring, an annular space is formed between the outer bearing ring and the inner bearing ring, a plurality of balls are arranged in the annular space, and the balls are in rolling contact with the outer bearing ring and the inner bearing ring.

8. The filtration system of claim 7, wherein the bearing component further comprises: the middle retainer is sleeved between the bearing outer ring and the bearing inner ring, a plurality of ball holes are formed in the middle retainer, and the balls are arranged in the ball holes.

9. The filtration system of claim 7, wherein the bearing cup has an outer ring snap that is snap-fit to one of the water collection cup and the cylindrical filtration component;

the bearing inner ring is provided with an inner ring buckle, and the inner ring buckle is fixedly connected with the water collecting cup and the other one of the cylindrical surface filtering components in a clamping manner.

10. A household appliance, characterized in that it comprises a filtering system according to any one of claims 1 to 9.