CN115539435A - Cleaning device - Google Patents

Abstract

The invention discloses a cleaning device, which comprises an impeller and an impeller cover, wherein water is discharged to at least one axial side of the impeller and the radial outer side of the impeller when the impeller rotates, the impeller cover is arranged on the impeller to separate the impeller from an object to be cleaned and is provided with a water through hole, and the water through hole and the impeller are oppositely arranged along the axial direction of the impeller. According to the cleaning device provided by the invention, objects to be cleaned, such as clothes and the like, can be prevented from being intertwined, and the abrasion is reduced.

Description

Cleaning device

Technical Field

The invention relates to the technical field of cleaning equipment, in particular to a cleaning device.

Background

In the related art, the pulsator washing machine mainly drives clockwise rotation and counterclockwise rotation of water flow by forward and reverse rotation of a pulsator, so as to wash clothes; however, the pulsator mechanically agitates the clothes, and inevitable friction between the pulsator and the clothes easily causes the clothes to be entangled and worn, and the user experience is not good enough.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. To this end, the present invention proposes a cleaning device which can prevent objects to be cleaned, such as clothes, from being entangled with each other, and reduce wear.

According to the embodiment of the invention, the cleaning device comprises: the impeller is used for discharging water to at least one side of the impeller in the axial direction and the radial outer side of the impeller when rotating; the impeller cover is arranged on the impeller to separate the impeller from an object to be cleaned, a water through hole is formed, and the water through hole and the impeller are oppositely arranged along the axial direction of the impeller.

According to the cleaning device provided by the embodiment of the invention, the impeller is arranged to rotate so as to discharge water to at least one axial side of the impeller and the radial outer side of the impeller, so that water flow can disperse objects to be cleaned while cleaning the objects to be cleaned, such as clothes, to avoid damage and the like caused by mutual winding of the objects to be cleaned, the cleaning device is beneficial to realizing zero winding, zero damage and zero abrasion of the clothes, the use experience of the cleaning device can be improved, the objects to be cleaned are not in direct contact with the impeller, and the abrasion of the objects to be cleaned is further reduced.

In some embodiments, the impeller includes a hub, one or more blade groups provided on the hub, the blade group including a plurality of blades provided at intervals in a circumferential direction of the hub, and one or more water discharge members provided radially outside the blade groups, wherein at least one blade group is adapted to discharge water to one axial side of the hub when the impeller rotates in a forward direction and/or at least one blade group is adapted to discharge water to the other axial side of the hub when the impeller rotates in a reverse direction, and the water discharge member is adapted to discharge water to the radially outside of the hub when the impeller rotates.

In some embodiments, the impeller further comprises: and the water pressing plate is formed into an annular structure and is arranged at one axial end of the plurality of water discharging pieces so as to guide water to the radial outer side of the hub when the impeller rotates.

In some embodiments, the impeller further comprises: the first reinforcing ring is arranged between the blades and the drainage piece, the outer radial end of each blade is connected with the first reinforcing ring, and the inner radial end of the drainage piece is connected with the first reinforcing ring.

In some embodiments, the blade sets are arranged in multiple groups, the multiple groups of blade sets are arranged along the radial direction of the hub, and a second reinforcing ring is connected between two adjacent groups of blade sets.

In some embodiments, adjacent two of the plurality of sets of blades are directed in opposite directions.

In some embodiments, the impeller cover includes a water blocking portion formed in a ring shape and shielded from one axial side of the drain member, and a water passing portion located at one axial side of the hub and the blade group and formed with the water passing hole.

In some embodiments, the water guard has a water guard edge extending toward the impeller in an axial direction of the impeller cup.

In some embodiments, the blade group is a plurality of groups, the blade groups are arranged along the radial direction of the hub, the water passing part is a plurality of water passing parts, each water passing part is arranged corresponding to one blade group, and an annular separation rib is arranged between the adjacent water passing parts corresponding to the two adjacent blade groups.

In some embodiments, the water passing parts are multiple and arranged along the radial direction of the hub, each water passing part is arranged corresponding to one group of the blade groups, the innermost water passing part extends upwards along the axial direction of the impeller cover to form a cylindrical structure, and the water passing holes of the innermost water passing part are formed in the cylindrical structure.

In some embodiments, the water through hole of the cylindrical structure includes at least one of a first nozzle, a second nozzle, and a third nozzle, the first nozzle is located at an upper end of the cylindrical structure and is configured to guide water to flow out in an axial direction of the cylindrical structure, the second nozzle is located at an upper portion of the cylindrical structure and is configured to guide water to flow out in a direction inclined with respect to the axial direction of the cylindrical structure, and the third nozzle is located on a circumferential wall of the cylindrical structure and is configured to guide water to flow out in a circumferential direction of the cylindrical structure.

In some embodiments, the washing device is a laundry treatment device and comprises: an outer cylinder; the inner cylinder is rotatably arranged in the outer cylinder and limits a washing space; the water spraying plate is arranged on the inner side wall of the inner barrel and defines a water passing space with the inner barrel, the water spraying plate forms a water spraying opening, the water passing space is communicated with the washing space through the water spraying opening, the impeller is arranged at the bottom of the washing space, the impeller cover is arranged above the impeller, and water is discharged to at least one axial side of the impeller and the water passing space when the impeller rotates.

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 view of an impeller of a cleaning device according to one embodiment of the invention;

FIG. 2 is another schematic view of the impeller shown in FIG. 1;

FIG. 3 is yet another schematic view of the impeller shown in FIG. 1;

FIG. 4 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic view of an impeller shroud of a cleaning device according to one embodiment of the present invention;

FIG. 6 is another schematic view of the impeller shroud shown in FIG. 5;

FIG. 7 is yet another schematic view of the impeller shroud shown in FIG. 5;

FIG. 8 is a cross-sectional view taken along line B-B of FIG. 7;

FIG. 9 is a schematic view of an impeller of a cleaning device according to another embodiment of the present invention;

FIG. 10 is another schematic view of the impeller shown in FIG. 9;

FIG. 11 is yet another schematic view of the impeller shown in FIG. 9;

FIG. 12 is a cross-sectional view taken along line C-C of FIG. 11;

FIG. 13 is a schematic view of an impeller shroud of a cleaning device according to another embodiment of the present invention;

FIG. 14 is another schematic view of the impeller shroud shown in FIG. 13;

FIG. 15 is yet another schematic view of the impeller shroud shown in FIG. 13;

FIG. 16 is a cross-sectional view taken along line D-D of FIG. 15;

FIG. 17 is a schematic view of a washing device according to one embodiment of the present invention, wherein the washing device is a laundry treating device;

FIG. 18 is another schematic view of the cleaning device shown in FIG. 17;

fig. 19 is yet another schematic view of the cleaning apparatus shown in fig. 17.

Reference numerals:

laundry treatment apparatus 100, water-passing space 100a, washing space 100b,

An impeller 11,

A hub 111, a spline structure 111F,

Blade set 112, blades 1120,

A drainage member 113, a water pressing plate 114, a first reinforcing ring 115, a second reinforcing ring 116,

An impeller cover 12,

A water stop portion 121, a water stop edge 1211, a mounting portion 1212,

A water passing part 122, a water passing hole 1220,

A tubular structure 122F, a first section 122F1, a second section 122F2,

A first nozzle orifice 1221, a second nozzle orifice 1222, a third nozzle orifice 1223,

An annular partition rib 123,

An outer cylinder 2, an inner cylinder 3, a water spraying plate 4, a water spraying opening 40,

Washing shaft 5, dewatering shaft 6, clutch 7.

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 functions 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.

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. This 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 the applicability of other processes and/or the use of other materials.

Hereinafter, a cleaning apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings. Wherein, the cleaning device can be used for cleaning the object to be cleaned. For example, the washing device may be a dishwasher, a laundry treatment device 100, a steam mop, a fruit and vegetable washing machine, or the like, which can wash the laundry.

In the following description of the present application, a washing apparatus is exemplified as the laundry treatment apparatus 100, such as a washing machine. The person skilled in the art will readily understand, after reading the following technical solutions, that the cleaning device is a device of another type.

As shown in fig. 1 and 9, the cleaning device includes an impeller 11 and an impeller cover 12, and when the impeller 11 rotates, the water is discharged to at least one side of the impeller 11 in the axial direction and the radial outside of the impeller 11, the following scheme is included: 1. when the impeller 11 rotates, water is discharged to one axial side of the impeller 11 and the radial outer side of the impeller 11; 2. when the impeller 11 rotates, water is discharged to the two axial sides of the impeller 11 and the radial outer side of the impeller 11; the impeller cover 12 is covered on the impeller 11 to separate the impeller 11 from the object to be cleaned, and the impeller 11 can rotate relative to the impeller cover 12, so that the impeller cover 12 can prevent the impeller 11 from being in direct contact with the object to be cleaned to generate friction, and the abrasion of the object to be cleaned is effectively reduced; the impeller cover 12 is formed with a plurality of water holes 120 of crossing, the water hole 120 of crossing can run through the impeller cover 12 along the axial of impeller 11, the water hole 1220 of crossing can be relative along the axial of impeller 11 with impeller 11 and set up, then the rivers of arranging to at least one side of impeller 11 axial can flow through the water hole 1220 when impeller 11 rotates, thereby impeller 11 rotates and can drive the rivers in belt cleaning device's washing space 100b and flow, make the setting of impeller cover 12 can not influence the function of impeller 11.

When the cleaning device cleans an object to be cleaned, water discharged to the radial outer side of the impeller 11 can participate in water circulation when the impeller 11 rotates, that is, water flowing to the radial outer side of the impeller 11 can flow into the water spraying opening 40 through the water passing space 100a in fig. 17, so that the water can spray towards the clothes, and on one hand, foam or stains on the clothes can be washed, and the cleaning effect is improved; on the other hand, this part rivers can be broken away waiting to wash the thing, avoid waiting to wash the thing intertwine to alleviate the wearing and tearing of waiting to wash the thing, promote user's use and experience. In some embodiments, the washing device may have a water passing space 100a, the impeller 11 may drive water to flow into the water passing space 100a, and the water passing space 100a has a water spraying opening 40, and the water is sprayed from the water spraying opening 40 to intensively wash the object to be washed and disperse the clothes to be washed. The water that arranges to the at least one side of impeller 11 axial when impeller 11 rotates also can participate in the rivers circulation, make this part of water be when rotating around impeller 11 the central axis, water can be followed impeller 11's axial flow, make rivers when treating the washings and rinse, can drive and treat that the washings rolls on impeller 11's axial, in order to treat the washings break away, effectively avoid treating that the washings intertwine fragile waits to rinse the thing etc. be favorable to realizing that the clothing is winding basically zero, zero damage, zero wearing and tearing, experience in order to promote the use of clothing processing apparatus.

Therefore, according to the cleaning device provided by the embodiment of the invention, the impeller 11 is arranged to rotate so as to discharge water to at least one axial side of the impeller 11 and the radial outer side of the impeller 11, so that water flow can disperse objects to be cleaned while cleaning objects to be cleaned, such as clothes, to be cleaned, damage and the like caused by mutual winding of the objects to be cleaned can be avoided, the clothes are beneficial to realizing zero winding, zero damage and zero abrasion basically, the use experience of the cleaning device can be improved, the objects to be cleaned are not in direct contact with the impeller 11, and the abrasion of the objects to be cleaned is further reduced. Compared with the prior art, the impeller washing machine adopts the impeller to wash clothes, the mechanical stirring of the impeller can be avoided, the clothes are scattered by water flow, the clothes are prevented from being wound, the friction between the clothes and the impeller 11 is avoided, and the abrasion of the clothes is reduced.

In some embodiments of the present invention, as shown in fig. 1-4 and 9-12, the impeller 11 includes a hub 111 and a blade assembly 112, the blade assembly 112 includes one or more blade sets 112, the blade set 112 is disposed on the hub 111, the blade set 112 includes a plurality of blades 1120 disposed at intervals along a circumferential direction of the hub 111, the blade set 112 may be fixed on a radial outer side of the hub 111, and the hub 111 may rotate the blade set 112 around a central axis of the hub 111. Wherein at least one set of blades 112 is adapted to discharge water to one axial side of the hub 111 when the impeller 11 is rotating in the forward direction, and/or at least one set of blades 112 is adapted to discharge water to the other axial side of the hub 111 when the impeller 11 is rotating in the reverse direction.

It should be noted that in the description of the present application, "and/or" is meant to include three parallel schemes, and taking "a and/or B" as an example, the scheme includes a scheme, or B scheme, or a scheme satisfied by both a and B. The arrangement of the blade group 112 may include the following schemes: 1. the blade group 112 is a group, and the blade group 112 is adapted to discharge water to one axial side of the hub 111 when the impeller 11 rotates in a forward direction, for example, the blade group 112 may discharge water to a lower side of the hub 111 when the impeller 11 rotates in a counterclockwise direction; 2. the blade group 112 is a group, and the blade group 112 is adapted to discharge water to the other axial side of the hub 111 when the impeller 11 rotates in the reverse direction, for example, the blade group 112 may discharge water to the upper side of the hub 111 when the impeller 11 rotates clockwise; 3. the blade group 112 is a group, the blade group 112 is adapted to discharge water to one axial side of the hub 111 when the impeller 11 rotates in the forward direction, and the blade group 112 is adapted to discharge water to the other axial side of the hub 111 when the impeller 11 rotates in the reverse direction; 4. the blade group 112 is a plurality of groups, at least one of the blade groups 112 is suitable for discharging water to one axial side of the hub 111 when the impeller 11 rotates in the forward direction; 5. the blade groups 112 are multiple groups, and at least one group of the multiple groups of blade groups 112 is suitable for discharging water to the other axial side of the hub 111 when the impeller 11 rotates reversely; 6. the blade sets 112 are multiple sets, and the multiple sets of blade sets 112 include at least one set of first blade set and at least one set of second blade set, the first blade set is suitable for discharging water to one axial side of the hub 111 when the impeller 11 rotates in the forward direction, and the second blade set is suitable for discharging water to the other axial side of the hub 111 when the impeller 11 rotates in the reverse direction; 7. the blade sets 112 are multiple sets, and the multiple sets of blade sets 112 include at least one third blade set, the third blade set is suitable for discharging water to one axial side of the hub 111 when the impeller 11 rotates in the forward direction, and the third blade set is suitable for discharging water to the other axial side of the hub 111 when the impeller 11 rotates in the reverse direction; 8. the blade sets 112 are multiple sets, and the multiple sets of blade sets 112 include at least one third blade set and at least one fourth blade set, the third blade set is suitable for discharging water to one axial side of the hub 111 when the impeller 11 rotates in the forward direction, the third blade set is suitable for discharging water to the other axial side of the hub 111 when the impeller 11 rotates in the reverse direction, and the fourth blade set is suitable for discharging water to one axial side of the hub 111 when the impeller 11 rotates in the forward direction or suitable for discharging water to the other axial side of the hub 111 when the impeller 11 rotates in the reverse direction.

The term "forward rotation" and "reverse rotation" refer to relative concepts, and the rotation direction of the forward rotation is opposite to the rotation direction of the reverse rotation, for example, if the forward rotation is clockwise rotation, the reverse rotation is counterclockwise rotation, and if the forward rotation is counterclockwise rotation, the reverse rotation is clockwise rotation.

As shown in fig. 1-4 and 10-12, the impeller 11 further includes one or more water discharge members 113, the water discharge member 113 is disposed radially outside the blade group 112, the plurality of water discharge members 113 may be disposed at intervals along the circumferential direction of the hub 111, and the water discharge member 113 is adapted to discharge water radially outside the hub 111 when the impeller 11 rotates, so that the water discharge member 113 can discharge water radially outside the hub 111 regardless of whether the impeller 11 rotates in the forward direction or in the reverse direction.

Therefore, the water discharging part 113 can drive part of water to flow to the radial outer side of the hub 111, and finally the part of water can be used for washing clothes in the radial direction of the hub 111 after participating in water circulation, so that the washing effect is improved, meanwhile, the clothes can be scattered, the clothes are prevented from being intertwined, the realization of the basically zero intertwining of the clothes is further improved, and the use experience of the washing device is improved; for example, the drainage member 113 may drive water to flow into the rinsing space 100a of the washing apparatus, the rinsing space 100a has the water spraying opening 40, and the water is sprayed from the water spraying opening 40 to intensively wash the laundry and disperse the laundry.

It can be understood that, the blade assembly 112 and the drainage member 113 rotate with the hub 111, since the blade assembly 112 drives the water flow to flow along the axial direction of the hub 111, and the drainage member 113 drives the water flow to flow along the radial direction of the hub 111, the motion intensity of the water flow driven by the blade assembly 112 and the motion intensity of the water flow driven by the drainage member 113 will not be offset, so as to improve the motion intensity of the water flow, thereby improving the washing degree of the water flow to the laundry and the washing capacity of the water flow to the laundry.

In some embodiments, as shown in fig. 17, the cleaning device may have a water containing space therein, the impeller 11 may be disposed at the bottom of the water containing space, the impeller cover 12 may cover the upper side of the impeller 11, the impeller cover 12 may be disposed coaxially with the impeller 11, and the water containing space has a washing space 100b; when the impeller 11 rotates clockwise, the water in the washing space 100b may flow upward along the axial direction of the hub 111 under the driving action of the blade group 112 of the impeller 11, and the water substantially flows upward along the clockwise direction to wash the laundry in the washing space 100b, and part of the water in the washing space 100b may flow outward along the radial direction of the hub 111 under the driving action of the drain member 113, and may flow downward along the axial direction of the hub 111 under the driving action of the blade group 112 as the water flows circularly toward the water passing space 100a, and may be finally sprayed inward along the radial direction of the hub 111 to wash the laundry, and when the impeller 11 rotates counterclockwise, the water in the washing space 100b may flow downward along the axial direction of the hub 111 under the driving action of the blade group 112, and the water substantially flows downward along the counterclockwise direction to wash the laundry, and part of the water may flow outward along the radial direction of the hub 111 under the driving action of the drain member 113, and may be sprayed inward along the radial direction of the hub 111 to wash the laundry.

It is understood that the number of blades 1120 of the blade group 112 and the number of the water discharge member 113 may be equal or different.

In some embodiments of the present invention, as shown in fig. 1-4 and 9-12, the blade 1120 is formed in a plate-like structure, so the structure of the blade 1120 is simple; the blades 1120 are arranged obliquely with respect to the central axis of the hub 111, so that the plane of the blades 1120 is arranged obliquely with respect to the central axis of the hub 111, when the impeller 11 rotates, the blades 1120 can apply a pressing force to the water, the pressing force has a first component force along the circumferential direction of the hub 111 and a second component force along the axial direction of the hub 111, the first component force is used for driving the water to flow around the central axis of the hub 111 along with the blades 1120, and the second component force is used for driving the water to flow along the axial direction of the hub 111, so that the blades 1120 can be ensured to discharge the water to one side of the hub 111 in the corresponding axial direction when the impeller 11 rotates.

Alternatively, as shown in fig. 1-4 and 9-12, the blade 1120 is formed in a flat plate structure to facilitate processing of the blade 1120. Of course, the blades 1120 may also be formed in a curved plate structure.

Alternatively, as shown in fig. 1-4 and 9-12, the blade 1120 extends along a straight radial direction of the hub 111, so that the center line of the blade 1120 extends along a straight radial direction of the hub 111, in which case the center line of the blade 1120 may be parallel to the radial direction of the hub 111, or the center line of the blade 1120 may define an acute included angle with the radial direction of the hub 111. Of course, the blades 1120 may also extend along the radial curve of the hub 111.

For example, in the example of fig. 1-4 and 9-12, the blades 1120 are formed as a flat plate structure, the center lines of the blades 1120 are parallel to the radial direction of the hub 111, and the planes of the blades 1120 are arranged obliquely with respect to the central axis of the hub 111 such that the planes of the blades 1120 define an acute included angle with the central axis of the hub 111.

In some embodiments of the present invention, as shown in fig. 1 to 4 and 9 to 12, the drain member 113 is formed in a plate-like structure, the structure of the drain member 113 is simple; the drain member 113 is arranged parallel to the central axis of the hub 111, and the central plane of the drain member 113 is parallel to the central axis of the hub 111, and when the impeller 11 rotates, the drain member 113 can apply a force to the water, so that the water flows radially outward of the hub 111 due to centrifugal force or the like under the driving of the drain member 113, thereby ensuring that the drain member 113 can discharge the water radially outward of the hub 111 when the impeller 11 rotates.

Of course, the drain member 113 may also be arranged obliquely with respect to the central axis of the hub 111, e.g. the central plane of the drain member 113 defines an acute angle with the central axis of the hub 111.

Alternatively, as shown in fig. 1 to 4 and 9 to 12, the drain member 113 is formed in a flat plate structure to facilitate the processing of the drain member 113. Of course, the drain member 113 may also be formed in a curved plate structure.

Alternatively, as shown in fig. 1 to 4 and 9 to 12, the drain member 113 extends linearly in a radial direction of the hub 111, and the central plane of the drain member 113 extends linearly in the radial direction of the hub 111, in which case the central plane of the drain member 113 may be parallel to the radial direction of the hub 111, or the central plane of the drain member 113 may define an acute angle with the radial direction of the hub 111. Of course, the drainage member 113 may also extend along the radial curve of the hub 111.

In some embodiments of the present invention, as shown in fig. 1 to 4 and 9 to 12, the impeller 11 further includes a water pressing plate 114, the water pressing plate 114 is formed in an annular structure, and the water pressing plate 114 is disposed at one axial end of the plurality of water discharging members 113 to guide water to the radial outside of the hub 111 when the impeller 11 rotates, so as to ensure the amount and pressure of water discharged from the water discharging members 113 to the radial outside of the hub 111, and prevent a part of water discharged from the water discharging members 113 to the radial outside of the hub 111 from flowing elsewhere to affect the cleaning effect, thereby facilitating to improve the cleaning effect of the cleaning device.

For example, in the example of fig. 1-4 and 9-12, the central axis of the impeller 11 extends vertically, the water pressing plate 114 is disposed at the upper end of the plurality of water discharging members 113, and each water discharging member 113 is connected to the water pressing plate 114, so that any two adjacent water discharging members 113 and the water pressing plate 114 may jointly define a water discharging passage, which extends substantially in the radial direction of the hub 111, to ensure that more water is discharged to the radial outside of the hub 111 when the impeller 11 rotates.

In some embodiments of the present invention, as shown in fig. 1 to 4 and 9 to 12, the impeller 11 further includes a first reinforcing ring 115, the first reinforcing ring 115 may be formed in an annular structure, the first reinforcing ring 115 is disposed between the blades 1120 and the water discharging member 113, the radially outer ends of the blades 1120 are connected to the first reinforcing ring 115, the radially inner ends of the blades 1120 may be connected to the hub 111, and the radially inner ends of the water discharging member 113 are connected to the first reinforcing ring 115, so that the impeller 11 is better formed as a whole, the strength and stability of the whole structure of the impeller 11 are ensured, and the disposition of the first reinforcing ring 115 does not affect the water discharging member 113 to discharge water to the radially outer side of the hub 111.

In some embodiments of the present invention, as shown in fig. 1 to 4 and 9 to 12, the impeller 11 further includes a water pressing plate 114 and a first reinforcing ring 115, the water pressing plate 114 is formed in an annular structure, the water pressing plate 114 is disposed at one axial end of the plurality of water discharging members 113 to guide water to a radial outer side of the hub 111 when the impeller 11 rotates, the first reinforcing ring 115 is disposed between the blades 1120 and the water discharging members 113, a radial outer end of each of the blades 1120 is connected to the first reinforcing ring 115, a radial inner end of each of the water discharging members 113 is connected to the first reinforcing ring 115, and a radial inner edge of the water pressing plate 114 is connected to the first reinforcing ring 115, which is advantageous for further improving strength of an overall structure of the impeller 11.

In some embodiments of the present invention, as shown in fig. 9 to 12, the blade sets 112 are multiple sets, and the multiple sets of blade sets 112 are arranged along the radial direction of the hub 111, so that the impeller 11 has a flexible structural design, which facilitates the realization of diversified designs of the impeller 11. Wherein, a second reinforcing ring 116 is connected between two adjacent blade groups 112, and the number of the second reinforcing rings 116 is one or more, so as to form the impeller 11 into a whole.

It is understood that when the blade groups 112 are provided in plural groups, the second reinforcing ring 116 is connected between the adjacent two blade groups 112, and the impeller 11 includes the first reinforcing ring 115, the second reinforcing ring 116 is provided inside the first reinforcing ring 115, and the first reinforcing ring 115 is connected between the outermost blade group 112 and the drain member 113.

Further, the number of blade sets 1120 of the plurality of blade sets 112 may be equal or different, and the configuration of the blades 1120 of the plurality of blade sets 112 may be the same or different. Of course, in the example of fig. 1-4, the blade set 112 may also be a set.

In some embodiments of the present invention, as shown in fig. 9 to 12, the flow guiding directions of two adjacent blade sets 112 are opposite, so that when the impeller 11 rotates, one of the two adjacent blade sets 112 discharges water to one axial side of the hub 111, and the other one discharges water to the other axial side of the hub 111, so as to drive the object to be cleaned to roll up in the axial direction of the hub 111 along the radial direction of the hub 111, thereby ensuring the effect of water flow on the clothes, avoiding the clothes from being entangled with each other to cause damage to the clothes, and facilitating to achieve substantially zero entanglement of the clothes.

It can be understood that when there are two blade groups 112, the flow guiding directions of the two blade groups 112 are opposite, and when there are three or more blade groups 112, the flow guiding directions of any two adjacent blade groups 112 are opposite, or the flow guiding directions of any two or more adjacent blade groups are opposite; for example, the three blade groups are taken as an example, the three blade groups are a first blade group, a second blade group and a third blade group from inside to outside in sequence along the radial direction of the hub, when the flow guide directions of any two adjacent blade groups are opposite, the flow guide directions of the first blade group and the second blade group are opposite, at this time, the flow guide directions of the third blade group and the second blade group are the same, or the flow guide directions of the second blade group and the third blade group are opposite, at this time, the flow guide directions of the first blade group and the second blade group are the same, and when the flow guide directions of the three blade groups are opposite, the flow guide directions of the first blade group and the third blade group are the same, and the flow guide directions of the first blade group and the second blade group are opposite.

It should be noted that the flow guiding directions of the two blade sets 112 are opposite, and it can be understood that when the impeller 11 rotates in the same direction, one of the two blade sets 112 discharges water from the alternate axial side to one axial side of the hub 111, and the other blade set discharges water from one axial side of the hub 111 to the other axial side of the hub 111.

For example, as shown in fig. 9 to 12, the central axis of the impeller 11 is vertically arranged, and when the impeller 11 rotates in the forward direction, one of the two adjacent blade groups 112 discharges water to the upper side of the hub 111, and the other blade group discharges water to the lower side of the hub 111, or when the impeller 11 rotates in the reverse direction, one of the two adjacent blade groups 112 discharges water to the upper side of the hub 111, and the other blade group discharges water to the lower side of the hub 111.

In the example of fig. 9-12, the two blade sets 112 are provided, the inner blade set 112 is provided as a first blade set, the outer blade set 112 is provided as a second blade set, when the impeller 11 rotates counterclockwise, the first blade set discharges water to the lower side of the hub 111, the water flow is driven by the first blade set to flow counterclockwise downward, the second blade set discharges water to the upper side of the hub 11, and the water flow is driven by the second blade set to flow counterclockwise upward, so as to drive the clothes to roll from outside to inside up and down; when the impeller 11 rotates clockwise, the first blade group discharges water to the upper side of the hub 111, the water flow flows clockwise and upwards under the driving of the first blade group, the second blade group discharges water to the lower side of the hub 11, and the water flow flows clockwise and downwards under the driving of the second blade group, so that the clothes are driven to roll up and down from inside to outside.

Of course, the blade group 112 may also be three or more. The flow guiding directions of the multiple sets of blade sets 112 may also be the same; for example, when the impeller 11 rotates, the plurality of sets of blades 112 each discharge water toward the lower side or the upper side of the hub 111.

In some embodiments of the present invention, as shown in fig. 5-8 and 13-17, the impeller cover 12 includes a water blocking portion 121 and a water passing portion 122, the water blocking portion 121 is formed in an annular shape, and the water blocking portion 121 is shielded at one axial side of the water discharging member 113, so as to ensure the amount of water and the pressure of water discharged from the water discharging member 113 to the radial outer side of the hub 111, and prevent a part of water discharged from the water discharging member 113 to the radial outer side of the hub 111 from flowing elsewhere to affect the cleaning effect, thereby facilitating to enhance the cleaning effect of the cleaning device; the water passing part 122 is located on one axial side of the hub 111 and the blade group 112, and the water passing part 122 is formed with a water passing hole 1220, the water passing hole 1220 can penetrate through the water passing part 122 along the axial direction of the impeller cover 12, when the impeller 11 rotates, water on one side of the impeller cover 12 flows along the axial direction of the hub 111 under the driving action of the blade group 112, and water flow can flow from one side of the impeller cover 12 to the other side of the impeller cover 12 through the water passing hole 1220 and can also flow from the other side of the impeller cover 12 to the one side of the impeller cover 12 through the water passing hole 1220, so that continuous circulating flow of water flow is realized, and the cleaning effect is enhanced.

For example, in the example of fig. 17, the central axis of the impeller 11 is vertically disposed, the impeller cover 12 covers the upper side of the impeller 11, the water passing part 122 may be located above the hub 111 and the blade group 112, and the water blocking part 121 shields the upper side of the water discharge member 113.

The water holes 1220 are plural, and the arrangement of the plural water holes 1220 may be arranged in multiple rows and multiple columns, or arranged in a circular array, etc. according to practical application.

It is understood that, when the impeller 11 includes the water pressing plate 114, the water pressing plate 114 may be provided at the upper end of the plurality of water discharge members 113, and the water stopper 121 may be shielded above the water pressing plate 114.

In some embodiments of the present invention, as shown in fig. 5-8 and 13-16, the water blocking portion 121 has a water blocking rim 1211, the water blocking rim 1211 may be disposed at a rim of the water blocking portion 121, and the water blocking rim 1211 may be formed in an annular structure, and the water blocking rim 1211 extends toward the impeller 11 along an axial direction of the impeller cover 12, so as to reduce a cross-sectional area of a passage of water discharged from the water discharging member 113 to a radial outer side of the hub 111, and facilitate increasing a water pressure of water discharged from the water discharging member 113 to the radial outer side of the hub 111, thereby improving a cleaning effect and a flushing capability of an object to be cleaned.

In some embodiments of the present invention, as shown in fig. 13 to 16, the blade sets 112 are multiple sets, the multiple sets of blade sets 112 are arranged along a radial direction of the hub 111, the number of the water passing portions 122 is multiple, each water passing portion 122 is arranged corresponding to one set of blade set 112, the flow guiding directions of two adjacent sets of blade sets 112 are opposite, and an annular separating rib 123 is arranged between the adjacent water passing portions 122 corresponding to the two adjacent sets of blade sets 112 to separate the two adjacent water passing portions 122, so that water flows discharged by the two adjacent sets of blade sets 112 have a certain independence, and a washing-up effect of clothes is ensured.

It is understood that the number of blade sets 112 may or may not be equal to the number of water passing sections 112.

Alternatively, in the examples of fig. 6, 8, 14 and 16, the annular partition rib 123 may be provided at a side of the water passing part 122 facing the impeller 11, and then the annular partition 123 is provided at a lower side of the water passing part 122. Of course, the annular partition rib 123 may also be disposed on a side of the water passing part 122 away from the impeller 11; or, the side of the water passing part 122 facing the impeller 11 and the side of the water passing part 122 facing away from the impeller 11 are respectively provided with an annular partition rib 123.

In some embodiments of the present invention, as shown in fig. 13-16, the water passing part 122 is plural, and the plural water passing parts 122 are arranged along the radial direction of the hub 111, each water passing part 122 is disposed corresponding to a group of blade groups 112, the innermost water passing part 122 extends upward along the axial direction of the impeller cover 12 as a cylindrical structure 122F, then the cylindrical structure 122F may extend into the washing space 100b of the washing device, and the cylindrical structure 122F may be located at a substantially central position of the washing space 100b, then the cylindrical structure 122F may correspond to a position where the impeller 11 rotates so that the water flow forms a vortex, so that the cylindrical structure 122F may weaken the vortex, prevent the laundry from being entangled, and prevent the laundry from being held more tightly, so as to further reduce the wear of the laundry.

Wherein, the water through hole 1220 of the innermost water through part 122 is formed in the tubular structure 122F, and then the water in the tubular structure 122F can be sprayed to the object to be cleaned through the water through hole 1220 so as to wash the object to be cleaned, and the water in the washing space 100b can also flow into the tubular structure 122F through the water through hole 1220, thereby ensuring the water circulation.

In some embodiments of the present invention, as shown in fig. 13-16, the water through hole 1220 of the cylindrical structure 122F includes at least one of the first nozzle 1221, the second nozzle 1222, and the third nozzle 1223, and the following solutions are included: the water through hole 1220 of the cylindrical structure 122F may include only the first nozzle 1221, or the water through hole 1220 of the cylindrical structure 122F may include only the second nozzle 1222, or the water through hole 1220 of the cylindrical structure 122F may include only the third nozzle 1223, or the water through hole 1220 of the cylindrical structure 122F may include the first nozzle 1221 and the second nozzle 1222, or the water through hole 1220 of the cylindrical structure 122F may include the first nozzle 1221 and the third nozzle 1223, or the water through hole 1220 of the cylindrical structure 122F may include the second nozzle 1222 and the third nozzle 1223, or the water through hole 1220 of the cylindrical structure 122F may include the first nozzle 1221, the second nozzle 1222, and the third nozzle 1223.

The first nozzle 1221 is located at the upper end of the cylindrical structure 122F, and the first nozzle 1221 is used for guiding water to flow out along the axial direction of the cylindrical structure 122F to wash the laundry; the second nozzle 1222 is located at an upper portion of the cylindrical structure 122F, and the second nozzle 1222 guides the water to flow out in a direction inclined with respect to an axial direction of the cylindrical structure 122F to wash the laundry; the third nozzle 1223 is located on the peripheral wall of the cylindrical structure 122F, and the third nozzle 1223 is used for guiding water to flow out along the circumferential direction of the cylindrical structure 122F to wash the clothes. Therefore, the water through holes 1220 of the cylindrical structure 122F can be reasonably arranged according to actual needs, so that actual differentiation requirements can be better met; when the water through hole 1220 of the cylindrical structure 122F includes at least two of the first nozzle 1221, the second nozzle 1222, and the third nozzle 1223, since the at least two nozzles have different water guiding directions, it is convenient to implement multi-angle and diversified washing of the laundry.

In the vertical direction, the upper portion of the cylindrical structure 122F may refer to a portion above the middle portion of the cylindrical structure 122F.

In addition, when the water through hole 1220 of the cylindrical structure 122F includes the first nozzle 1221, the second nozzle 1222 and the third nozzle 1223, the water ejected from the first nozzle 1221, the second nozzle 1222 and the third nozzle 1223 may not interfere with each other, that is, the water ejected from the first nozzle 1221 may not block the water ejected from the second nozzle 1222 and the third nozzle 1223, similarly, the water ejected from the second nozzle 1222 may not block the water ejected from the first nozzle 1221 and the third nozzle 1223, and the water ejected from the third nozzle 1223 may not block the water ejected from the first nozzle 1221 and the second nozzle 1222, so as to ensure that the water ejected from each nozzle has a sufficient water pressure, and ensure the washing effect of the water through hole 1220 of the cylindrical structure 122F on the laundry.

In some embodiments of the present invention, as shown in fig. 13 to 16, the water through hole 1220 of the cylindrical structure 122F includes a first nozzle 1221, a second nozzle 1222 and a third nozzle 1223, the cylindrical structure 122F includes a first section 122F1 and a second section 122F2, the first section 122F1 is connected to the top end of the second section 122F2, the first nozzle 1221 is formed at the top end of the first section 122F1 so as to ensure that the first nozzle 1221 guides the water to flow out along the axial direction of the cylindrical structure 122F, the second nozzle 1222 is formed at the top end of the second section 122F2, and the second nozzle 1222 is located at the radially outer side of the first section 122F1 so as to guide the water to flow out along a direction inclined with respect to the axial direction of the cylindrical structure 122F, the third nozzle 1223 is formed at the second section 122F2, and the third nozzle 1223 is located below the second nozzle 1222, so as to ensure that the water sprayed from the first nozzle 1221, the second nozzle 1223 and the third nozzle 1223 do not interfere with each other.

In some embodiments of the present invention, as shown in fig. 13-16, the first segment 122F1 is formed as a conical cylinder, the outer peripheral wall of the conical cylinder and the second segment 122F2 together define the second spout 1222, and in the longitudinal section of the cylindrical structure 122F, because the outer peripheral wall of the conical cylinder is disposed obliquely with respect to the axial direction of the cylindrical structure 122F, the outer peripheral wall of the conical cylinder may have a certain guiding function for the water at the second spout 1222, further ensuring that the second spout 1222 guides the water to flow out in a direction oblique with respect to the axial direction of the cylindrical structure 122F, and simultaneously, because of the guiding function of the outer peripheral wall of the conical cylinder, the requirement for disposing the remaining wall of the second spout 1222 may be reduced, thereby simplifying the disposing of the second spout 1222.

In some embodiments of the present invention, as shown in fig. 13-16, the cross-sectional area of the lower end of the tapered cylinder is smaller than the cross-sectional area of the upper end of the tapered cylinder, and the first nozzle 1221 is formed at the top end of the first section 122F1, so as to ensure sufficient space for the first nozzle 1221 to be arranged, and the lower portion of the tapered cylinder extends into the second section 122F2, which is advantageous to further enhance the guiding function of the peripheral wall of the tapered cylinder.

Alternatively, in the example of fig. 13 and 16, the upper end surface of the tapered cylinder may be formed as a flat surface or a curved surface.

Alternatively, in the example of fig. 13 and 16, the cross-sectional area of the lower end of the second section 122F2 gradually increases downward, so that the lower end of the second section 122F2 is formed into a substantially trumpet shape, which facilitates smooth transition connection of the second section 122F2 with the adjacent water passing portion 122, and avoids abrasion of the clothes by the impeller housing 12.

It will be appreciated that the cleaning device may comprise the impeller 11 shown in figures 1-4 and the impeller cup 12 shown in figures 5-8, or the cleaning device comprises the impeller 11 shown in figures 1-4 and the impeller cup 12 shown in figures 13-16, or the cleaning device comprises the impeller 11 shown in figures 9-12 and the impeller cup 12 shown in figures 5-8, or the cleaning device comprises the impeller 11 shown in figures 9-12 and the impeller cup 12 shown in figures 13-16.

For example, as shown in fig. 17-19, the cleaning device is a clothes treatment device 100, and the cleaning device includes an outer tub 2, an inner tub 3 and a water spraying plate 4, the outer tub 2 can define a water containing space, the inner tub 3 is rotatably disposed in the outer tub 2, the inner tub 3 defines a washing space 100b, the water spraying plate 4 is disposed on an inner side wall of the inner tub 3, the water spraying plate 4 and the inner tub 3 define a water passing space 100a, the water spraying plate 4 is formed with water spraying openings 40, the water passing space 100a is communicated with the washing space 100b through the water spraying openings 40, an impeller 11 is disposed at a bottom of the washing space 100b, an impeller cover 12 is disposed over the impeller 11, the impeller 11 rotates to discharge water to at least one side of the impeller 11 in an axial direction and the water passing space 100a, and the water in the water passing space 100a can be sprayed through the water spraying openings 40 to wash clothes.

The clothes treating apparatus 100 further comprises a washing shaft 5, a dehydrating shaft 6 and a clutch 7, the hub 111 has a spline structure 111F, so that the washing shaft 5 is connected with the spline structure 111F to drive the impeller 11 to rotate, and the dehydrating shaft 6 is connected with the inner drum 3 to drive the inner drum 3 to rotate; the laundry treating apparatus 100 may have a washing mode in which the impeller 11 rotates to implement washing of the laundry, and a dehydrating mode in which the drum 3 rotates to implement dehydration of the laundry. Among them, the clutch 7 can be used to control the power transmission between the dehydrating shaft 6 and the inner tub 3.

Alternatively, the laundry treating apparatus 100 is a washing machine; of course, the type of the laundry treating apparatus 100 is not limited thereto, and the laundry treating apparatus 100 may be a washing and drying machine, for example.

Alternatively, when the laundry treatment apparatus 100 has a washing function, the control method of the laundry treatment apparatus 100 may include: the laundry treating apparatus 100 is started, and the impeller 11 rotates in a forward direction for a first predetermined time period and then rotates in a reverse direction for a second predetermined time period, and so on, until the washing of the laundry is completed.

Other constructions and operations of cleaning devices according to embodiments of the invention are known to those of ordinary skill in the art and will not be described in detail herein.

A cleaning apparatus according to an embodiment of the present invention will be described in detail in two specific embodiments with reference to fig. 1 to 16. It is to be understood that the following description is illustrative only and is not intended as a specific limitation of the invention.

Example one

In the present embodiment, as shown in fig. 1 to 4, the washing apparatus is a laundry treating apparatus 100, the laundry treating apparatus 100 includes an impeller 11, the impeller 11 includes a hub 111, a blade group 112, a drain member 113, a water pressing plate 114, and a first reinforcing ring 115, the blade group 112 is disposed between the hub 111 and the first reinforcing ring 115, the blade group 112 includes a plurality of blades 1120 disposed at intervals in a circumferential direction of the hub 111, the drain member 113 is plural and disposed radially outside the first reinforcing ring 115, the water pressing plate 114 is formed in an annular structure, and the water pressing plate 114 is disposed at an upper end of the plurality of drain members 113. When the impeller 11 rotates forward, for example, clockwise, the blade group 112 discharges water to the upper side of the hub 111, the water discharge member 113 discharges water to the radial outer side of the hub 111, and the water pressing plate 114 guides water to the radial outer side of the hub 111; when the impeller 11 rotates in a reverse direction, for example, counterclockwise, the blade group 112 discharges water to the lower side of the hub 111, the water discharge member 113 discharges water to the radial outside of the hub 111, and the water pressing plate 114 guides water to the radial outside of the hub 111.

For example, in the example of FIG. 1, there are one blade set 112 and six blades 1120 of the blade set 112.

As shown in fig. 5-8, the laundry treating apparatus 100 further includes a impeller cover 12, the impeller cover 12 is covered on the upper side of the impeller 11, the impeller cover 12 includes a water blocking portion 121 and a water passing portion 122, the water blocking portion 121 is formed in an annular shape and is shielded above the water pressing plate 114, a water blocking edge 1211 is provided at an edge of the water blocking portion 121, the water blocking edge 1211 extends downward along an axial direction of the impeller cover 12, the water passing portion 122 is located above the hub 111 and the blade group 112, and a water passing hole 1220 is formed in the water passing portion 122; the water retaining portion 121 also has a mounting portion 1212 at an edge thereof, and the mounting portion 1212 may extend radially outward of the impeller cup 12 to facilitate mounting of the impeller cup 12.

The number of the water passing portions 122 is two, the two water passing portions 122 are sequentially arranged along the radial direction of the impeller housing 12, and the blade group 112 and the two water passing portions 122 are oppositely arranged.

When the impeller 11 rotates clockwise, the blade group 112 discharges water to the upper side of the hub 111, and the water flow is driven by the blade group 112 to flow clockwise and upwards, so that the clothes are pushed to roll from bottom to top; when the impeller 11 rotates counterclockwise, the blade set 112 discharges water to the lower side of the hub 111, and the water flows counterclockwise and downward under the driving of the blade set 112, thereby pushing the laundry to tumble from top to bottom. The drain member 113 drains water toward the water passing space 100a of the laundry treating device 100 regardless of whether the impeller 11 rotates clockwise or counterclockwise.

Example two

As shown in fig. 9 to 16, the present embodiment has substantially the same structure as the first embodiment, wherein the same reference numerals are used for the same components, except that: the two blade sets 112 are arranged along the radial direction of the hub 111, and the flow guiding directions of the two blade sets 112 are opposite, that is, when the impeller 11 rotates forward, for example, clockwise, one blade set 112 discharges water to the upper side of the hub 111, and the other blade set 112 discharges water to the lower side of the hub 111; when the impeller 11 rotates in a reverse direction, for example, counterclockwise, the one blade group 112 discharges water to the lower side of the hub 111, and the other blade group 112 discharges water to the upper side of the hub 111.

The inner water passing part 122 extends upwards along the axial direction of the impeller shell 12 to form a cylindrical structure 122F, and a water passing hole 1220 of the cylindrical structure 122F comprises a first nozzle 1221, a second nozzle 1222 and a third nozzle 1223; the first nozzle 1221 is located at the upper end of the cylindrical structure 122F, and the first nozzle 1221 is used to guide water to flow out in the axial direction of the cylindrical structure 122F, the second nozzle 1222 is located at the upper portion of the cylindrical structure 122F, and the second nozzle 1222 is used to guide water to flow out in a direction inclined with respect to the axial direction of the cylindrical structure 122F, the third nozzle 1223 is located on the peripheral wall of the cylindrical structure 122F, and the third nozzle 1223 is used to guide water to flow out in the circumferential direction of the cylindrical structure 122F.

When the impeller 11 rotates counterclockwise, the inner blade group 112 discharges water to the lower side of the hub 111, the water flows counterclockwise and downward under the driving of the inner blade group 112, the outer blade group 112 discharges water to the upper side of the hub 111, and the water flows counterclockwise and upward under the driving of the outer blade group 112, so that the clothes are driven to roll from outside to inside up and down; when the impeller 11 rotates clockwise, the inner blade group 112 discharges water to the upper side of the hub 111, the water flow flows clockwise and upwards under the driving of the inner blade group 112, the outer blade group 112 discharges water to the lower side of the hub 111, and the water flow flows clockwise and downwards under the driving of the outer blade group 112, so that the clothes are driven to roll up and down from inside to outside. The water discharge member 113 discharges water to the radially outer side of the hub 111 and the water pressing plate 114 guides water to the radially outer side of the hub 111 regardless of whether the impeller 11 rotates clockwise or counterclockwise.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "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 meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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 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 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 (12)

1. A cleaning device, comprising:

the impeller is used for discharging water to at least one axial side of the impeller and the radial outer side of the impeller when rotating;

the impeller cover is arranged on the impeller to separate the impeller from an object to be cleaned, a water through hole is formed, and the water through hole and the impeller are oppositely arranged along the axial direction of the impeller.

2. The cleaning apparatus defined in claim 1, wherein the impeller includes a hub, one or more blade groups provided on the hub, the blade groups including a plurality of blades provided at intervals in a circumferential direction of the hub, and one or more drain members provided radially outward of the blade groups, wherein at least one of the blade groups is adapted to discharge water to one axial side of the hub when the impeller rotates in a forward direction and/or at least one of the blade groups is adapted to discharge water to the other axial side of the hub when the impeller rotates in a reverse direction, and the drain member is adapted to discharge water to the radially outward side of the hub when the impeller rotates.

3. The cleaning device of claim 2, wherein the impeller further comprises:

and a water pressing plate formed in an annular structure and provided at one axial end of the plurality of water discharging members to guide water to a radial outside of the hub when the impeller rotates.

4. The cleaning device of claim 2, wherein the impeller further comprises:

the first reinforcing ring is arranged between the blades and the drainage piece, the radial outer end of each blade is connected with the first reinforcing ring, and the radial inner end of the drainage piece is connected with the first reinforcing ring.

5. The cleaning device of claim 2, wherein the blade sets are arranged in a plurality of groups, the blade sets are arranged along a radial direction of the hub, and a second reinforcing ring is connected between two adjacent blade sets.

6. The cleaning apparatus defined in claim 5, wherein adjacent ones of the sets of blades are directed in opposite directions.

7. The washing apparatus as claimed in any one of claims 2 to 6, wherein the impeller cover includes a water blocking portion formed in a ring shape and shielded from one axial side of the drain member, and a water passing portion located on one axial side of the hub and the blade group and formed with the water passing hole.

8. The cleaning apparatus in accordance with claim 7, wherein the water guard has a water guard edge extending toward the impeller in an axial direction of the impeller cup.

9. The cleaning device according to claim 7, wherein the blade sets are a plurality of sets, the blade sets are arranged along a radial direction of the hub, the water passing portion is a plurality of sets, each water passing portion is arranged corresponding to one blade set, the flow guiding directions of two adjacent sets of blade sets are opposite, and an annular separating rib is arranged between the adjacent water passing portions corresponding to the two adjacent sets of blade sets.

10. The cleaning device according to claim 7, wherein the water passing portions are plural and arranged in a radial direction of the hub, each of the water passing portions is provided corresponding to a group of the blade groups, the innermost water passing portion extends upward in an axial direction of the impeller cover as a cylindrical structure, and the water passing hole of the innermost water passing portion is formed in the cylindrical structure.

11. The cleaning device according to claim 10, wherein the water passing hole of the cylindrical structure includes at least one of a first nozzle, a second nozzle, and a third nozzle, the first nozzle is located at an upper end of the cylindrical structure and is configured to guide water to flow out in an axial direction of the cylindrical structure, the second nozzle is located at an upper portion of the cylindrical structure and is configured to guide water to flow out in a direction inclined with respect to the axial direction of the cylindrical structure, and the third nozzle is located on a circumferential wall of the cylindrical structure and is configured to guide water to flow out in a circumferential direction of the cylindrical structure.

12. The washing device of claim 1, wherein the washing device is a laundry treatment device and comprises:

an outer cylinder;

the inner cylinder is rotatably arranged in the outer cylinder and limits a washing space;

the water spraying plate is arranged on the inner side wall of the inner barrel and limits a water passing space with the inner barrel, a water spraying opening is formed in the water spraying plate, the water passing space is communicated with the washing space through the water spraying opening, the impeller is arranged at the bottom of the washing space, the impeller cover is arranged above the impeller, and water is discharged to at least one side of the impeller in the axial direction and the water passing space when the impeller rotates.

Images