CN112239928A

CN112239928A - Clothes treatment equipment

Info

Publication number: CN112239928A
Application number: CN201910644978.4A
Authority: CN
Inventors: 刘尊安; 宋秀顺; 杨丽梅; 刘让雷
Original assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2021-01-19

Abstract

The invention discloses a clothes treatment device, which comprises an inner barrel and a rotary impeller arranged in the inner barrel, wherein a cleaning device is arranged between the bottom of the inner barrel and the impeller, and a position holding device used for holding the cleaning device at a certain position is arranged on the cleaning device. The invention enables the cleaning device to be always in contact with the inner wall of the bottom of the inner barrel and the bottom wall of the impeller in the cleaning process by arranging the position retaining device, thereby realizing better cleaning of the bottom wall of the impeller and the inner wall of the bottom of the inner barrel. The impeller is also provided with a stopping structure for stopping and driving the cleaning device, and the cleaning device is driven to move by the added stopping structure to realize the omnibearing cleaning of the bottom wall of the impeller and the inner wall of the bottom of the inner barrel.

Description

Clothes treatment equipment

Technical Field

The invention belongs to the field of household appliances, and particularly relates to a clothes treatment device.

Background

At present, the full-automatic washing machines on the market mostly adopt a sleeve type structure of a water storage barrel (washing barrel) sleeved outside a dehydration barrel, and generally comprise an outer barrel 1, an inner barrel 2 and a wave wheel 3 shown in fig. 1, wherein the inner barrel comprises a bottom inner wall 21, the wave wheel 3 is rotatably installed in the inner barrel 2, and because the inner barrel 2 and the wave wheel 3 move when the washing machine washes and dehydrates, gaps exist between the outer barrel 1 and the inner barrel 2 and between the bottom wall of the wave wheel 3 and the bottom inner wall 21 of the inner barrel 2. As the inner barrel 2 is provided with holes, dirty water for washing clothes can enter a gap between the outer barrel 1 and the inner barrel 2, and the problem of dirt storage and dirt collection of the washing machine can be caused due to long-term accumulation, thereby causing secondary pollution to the clothes. For example, chinese patent 200520050932.3 provides a sleeve barrel which comprises a fixed barrel (water storage barrel) and a rolling barrel (dewatering barrel), wherein a plurality of sheet-like cleaners are arranged between the double-layer barrel walls of the fixed barrel and the rolling barrel, the cleaners generally adopt polygonal rubber sheets, and the cleaners collide with each other under the drive of water flow to clean the dirt on the double-layer barrel walls. The prior invention also designs a washing machine with a non-porous inner barrel, because water only exists in the inner barrel 2, the problem of dirt storage and dirt collection caused by dirty water of clothes washing entering a gap between the outer barrel 1 and the inner barrel 2 can be solved.

Although the arrangement of a plurality of cleaners between the walls of the outer and

inner tubs

1 and 2 and the arrangement of the inner tub 2 as a non-porous inner tub can solve the problem of dirt between the outer and

inner tubs

1 and 2, the gap between the bottom wall of the pulsator 3 and the bottom inner wall 21 of the inner tub 2 can still store dirt and scale for a long time because the clothes cannot be in direct contact.

The present invention has been made in view of this situation.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a clothes treatment device which can effectively clean the space between an inner barrel and a wave wheel.

In order to solve the technical problem, the invention provides a clothes treatment device, which comprises an inner barrel and a wave wheel rotatably arranged in the inner barrel, wherein a cleaning device is arranged between the bottom of the inner barrel and the wave wheel, and a position holding device used for holding the cleaning device at a certain position is arranged on the cleaning device.

Further, the washing machine also comprises a rotating shaft penetrating through the bottom of the inner barrel, the impeller is fixedly connected with the rotating shaft, the cleaning device comprises a connecting part and a cleaning part, the cleaning part is arranged on the rotating shaft through the connecting part, and the position maintaining device is arranged on the cleaning part and is kept in contact with the bottom wall of the impeller and/or the inner wall of the bottom of the inner barrel.

Further, the cleaning member includes at least a first end portion connected to the connection member and a second end portion extending toward an outer peripheral edge of the pulsator, and the position maintaining device is provided on the cleaning member and on and/or between the first end portion and the second end portion.

Further, the position maintaining device comprises a rolling component which is in rolling contact with the bottom wall of the wave wheel and/or the inner wall of the bottom of the inner barrel;

preferably, the rolling component is in rolling contact with the bottom wall of the impeller and the bottom inner wall of the inner barrel.

Further, the rolling part is a rolling ring, and the second end part is provided with an assembling structure for assembling the rolling ring;

preferably, the fitting structure is an annular groove provided on the second end portion.

Further, the rolling ring comprises an inner ring and an outer ring, the inner ring is tightly matched with the annular groove, a plurality of first balls are arranged between the outer ring and the inner ring, the first balls are in rolling contact with the inner surface of the outer ring and the outer surface of the inner ring, and the outer ring is in rolling contact with the bottom wall of the impeller and the inner wall of the bottom of the inner barrel. .

Further, the rolling component comprises a roller and a roller shaft, the roller is arranged on the end face of the second end part through the roller shaft, and the roller is in rolling contact with the bottom wall of the impeller and the inner wall of the bottom of the inner barrel.

Further, the rolling component is a second ball, a ball groove is formed in the second end portion of the cleaning component, the second ball is embedded in the ball groove, and the second ball is in rolling contact with the bottom wall of the impeller and the inner wall of the bottom of the inner barrel.

Furthermore, a stop structure for stopping and driving the cleaning device to move is further arranged on the impeller.

Furthermore, the stopping structure is a convex column formed by the bottom wall of the wave wheel protruding towards the direction close to the bottom of the inner barrel, and the distance between the convex column and the rotating shaft is smaller than the length of the cleaning component.

After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:

1. the cleaning device is arranged between the inner barrel and the impeller, and the cleaning device is driven to move by the movement of the rotating shaft and/or water flow, so that the aim of cleaning the gap between the inner barrel and the impeller is fulfilled.

2. The invention enables the cleaning device to be always kept in contact with the inner wall of the bottom of the inner barrel and the bottom wall of the impeller in the cleaning process by arranging the position maintaining device, thereby realizing better cleaning of the bottom wall of the impeller or the inner wall of the bottom of the inner barrel.

3. The invention drives the cleaning device to move by arranging the stop structure on the impeller, thereby realizing the omnibearing cleaning of the inner wall of the bottom of the inner barrel and the bottom wall of the impeller.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a schematic view of a conventional washing machine;

FIG. 2 is a schematic view of the washing machine according to embodiment 1;

FIG. 3 is a schematic view of a cleaning apparatus according to a first embodiment of example 1;

FIG. 4 is a schematic view of a cleaning apparatus according to a second embodiment of example 1;

FIG. 5 is a schematic view of a cleaning apparatus according to a third embodiment of example 1;

FIG. 6 is a schematic view of a cleaning apparatus according to a fourth embodiment of example 1;

FIG. 7 is a schematic view showing the structure of a washing machine according to embodiment 2;

FIGS. 8 to 10 are assembly views of an assembly structure and a cleaning apparatus in the second embodiment of example 2;

fig. 11 is a schematic structural view of washing machines according to

embodiments

3 and 4;

fig. 12 is a schematic structural view of a cleaning device according to embodiment 3.

Wherein: the device comprises an outer barrel 1, an inner barrel 2, a bottom inner wall 21, a wave wheel 3, a rotating shaft 4, a cleaning device 5, a connecting part 51, a cleaning part 52, a rotating shaft 53, a rotating shaft center 53, a positioning column 54, a sleeve ring 511, a connecting block 512, a spherical protrusion 513, a cleaning part 521, a connecting section 5121, a clamping section 5122, a spherical groove 5123, a convex structure 5211, an annular groove 522, a central column 6, a channel 61, a first convex ring 62, a concave ring 63, a blocking part 631, a spherical concave ring 632, a rolling ring 7, an inner ring 71, an outer ring 72, first balls 73 and a stop structure 8.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "contacting," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 2 to 5, a clothes treating apparatus includes an outer tub 1, an inner tub 2 fitted in the outer tub 1, and a pulsator 3 rotatably disposed in the inner tub 2. The inner tub 2 includes a bottom inner wall 21, and the laundry treating apparatus according to the embodiment of the present invention is illustrated by using a washing machine as an example, but not limited to the washing machine, and may be a washing and drying machine and other laundry treating apparatuses having a similar structure. In this embodiment, because the inner tub 2 and the pulsator 3 move during washing and dewatering of the washing machine, gaps are formed between the outer tub 1 and the inner tub 2, and between the pulsator 3 and the bottom inner wall 21 of the inner tub 2, and in order to clean the gaps between the pulsator 3 and the bottom inner wall 21 of the inner tub 2, the cleaning device 5 is disposed between the bottom inner wall 21 of the inner tub 2 and the pulsator 3, and the problem of dirt collection between the bottom inner wall 21 of the inner tub 2 and the bottom wall of the pulsator 3 can be solved by disposing the cleaning device 5. And the cleaning device 5 of the invention is not only suitable for cleaning between the inner barrel with holes and the wave wheel 3, but also suitable for cleaning between the inner barrel with holes and the wave wheel 3, and has good cleaning effect and wide application range.

The first embodiment is as follows: as shown in fig. 2 to 3, the laundry treating apparatus includes a rotating shaft 4 penetrating the inner tub 2, the pulsator 3 is fixedly connected to the rotating shaft 4, and the cleaning device 5 is rotatably provided on the rotating shaft 4. In the washing or dewatering process of the washing machine, the rotating shaft 4 rotates, the cleaning device 5 is arranged on the rotating shaft 4, the cleaning device 5 is driven by the rotating shaft 4 to rotate so as to clean the space between the bottom wall of the impeller 3 and the bottom inner wall 21 of the inner barrel 2, and in the drainage process, dirt cleaned by the cleaning device 5 flows out along with water flow.

Further, as shown in fig. 3 to 4, the cleaning device 5 includes a connecting member 51 and a cleaning member 52 connected to the connecting member 51, the connecting member 51 is disposed on the rotating shaft 4, and the cleaning member 52 rotates around the rotating shaft 4 via the connecting member 51 during the rotation of the rotating shaft 4; preferably, the connecting part 51 is a sleeve ring 511 sleeved on the rotating shaft 4, and the structure of the rotating shaft 4 is not required to be changed by sleeving the sleeve ring 511 on the rotating shaft 4, so that the invention has good adaptability and low design cost. The connecting part 51 and the rotating shaft 4 can be fixedly connected or movably connected. If the connection is fixed, the size of the sleeve ring 511 is equal to that of the rotating shaft 4, when washing or dewatering, the rotating shaft 4 rotates to drive the sleeve ring 511 to rotate, and the sleeve ring 511 drives the cleaning component 52 to rotate, so that the inner wall 21 at the bottom of the inner barrel 2 and the bottom wall of the impeller 3 are cleaned; in order to achieve a more comprehensive cleaning effect, the collar 511 and the rotating shaft 4 are movably connected, that is, the collar 511 is larger than the rotating shaft 4, and in the washing and dewatering processes of the washing machine, the cleaning device 5 is driven by water flow and the rotating shaft 4 to move in the radial direction, the axial direction and the circumferential direction of the rotating shaft 4, so that the bottom inner wall 21 of the inner barrel 2 and the bottom wall of the pulsator 3 are comprehensively cleaned.

Further, the bottom wall of the pulsator 3 is a planar structure, the bottom wall of the pulsator 3 may be designed to be a planar structure, or a planar piece matched with the shape of the pulsator 3 is separately designed to be welded or assembled on the bottom wall of the pulsator 3, the cleaning member 52 at least includes a long cleaning piece 521, one end of the cleaning piece 521 is connected with the sleeve ring 511, and the other end extends to the edge of the planar structure. When washing, the washing machine impeller 3 or the inner tub 2 rotates, and the cleaning member 521 can be driven to rotate by the water flow brought by the movement of the washing machine impeller 3 or the inner tub 2. While rotating, the cleaning member 521 continuously rubs, collides and washes the bottom wall of the pulsator 3 and the bottom inner wall 21 of the inner tub 2, thereby preventing dirt from adhering between the pulsator 3 and the inner tub 2 and maintaining the cleanness between the pulsator 3 and the inner tub 2. The shape of the cleaning member 521 may be a rectangular parallelepiped or a cylinder, and in order to increase the contact area between the cleaning member 521 and the bottom wall of the pulsator 3 or the bottom inner wall 21 of the inner tub 2, the cleaning member 521 is preferably designed to have a rectangular parallelepiped shape. The cleaning member 521 can be made of soft material such as rubber or rubber foam, so as to avoid abnormal sound during washing. The width of the cleaning element 521 is smaller than the gap between the bottom inner wall 21 of the inner tub 2 and the pulsator 3, the gap between the cleaning element 521 and the pulsator 3, and the gap between the cleaning element 521 and the bottom inner wall 21 of the inner tub 2 are preferably 0-5mm, more preferably 0.5-2mm, and the gap between the radial direction and the bottom inner wall 21 of the inner tub 2 is preferably 0-5mm, more preferably 0.5-2mm, so that the contact between the cleaning element 521 and the bottom wall of the pulsator 3 and the bottom inner wall 21 of the inner tub 2 can be ensured to perform friction cleaning on the bottom inner wall 21 of the inner tub 2 and the bottom wall of the pulsator 3, and a certain moving space can be provided to enable the cleaning element 521 to collide the bottom inner wall 21 of the inner tub 2 and the bottom wall of the pulsator 3 when moving axially along the.

The second embodiment is as follows: as shown in fig. 4, in the present embodiment, on the basis of the first to third embodiments, in order to increase the cleaning capability of the cleaning member 521, an auxiliary cleaning structure is disposed on the cleaning member 521, and the auxiliary cleaning structure can be deformed under the action of a force, so as to avoid the problem that the contact surface between the cleaning member 521 and the bottom wall of the pulsator 3 or the bottom inner wall 21 of the inner tub 2 is interfered at a certain position, so that the rest of the contact surface cannot be cleaned. The auxiliary cleaning structure is provided on at least one side of the cleaning member 521; the auxiliary cleaning structures are brushes uniformly distributed on the cleaning member 521, or protruding structures 5211 uniformly distributed on the cleaning member 521 at intervals, and in order to increase the cleaning effect, the protruding structures 5211 preferably include point-shaped protrusions and/or strip-shaped protrusions. The auxiliary cleaning structure and the cleaning member 521 are made of the same or different materials.

Further, the cleaning member 521 is movably connected with the sleeve ring 511, the sleeve ring 511 is provided with a spherical protrusion 513, one end of the cleaning member 521 is provided with a spherical groove 5123 matched with the spherical protrusion 513, the spherical protrusion 513 extends into the spherical groove 5123, during the washing process of the clothes, the cleaning member 521 rotates and rotates in the spherical groove 5123 through the spherical protrusion 513, and meanwhile, the cleaning member 521 can revolve around the rotating shaft 4, so that the cleaning efficiency of the cleaning member is improved, at the moment, a convex structure is arranged on the whole outer peripheral surface of the cleaning member 521, and the gap between the inner tub 2 and the impeller 3 can be completely cleaned in the self-transmission and revolution processes of the cleaning member 521.

Or, the cleaning element 521 is fixedly connected with the collar 511, and the raised structures 5211 are uniformly distributed at intervals on one side of the cleaning element 521 close to the bottom wall of the pulsator 3, and/or on one side of the cleaning element 521 close to the bottom inner wall 21 of the inner tub 2, and/or on one side of the cleaning element 521 close to the side wall of the inner tub 2, so as to ensure that the raised structures 5211 are arranged on the contact surfaces of the cleaning element 521, the inner tub 2 and the pulsator 3 to achieve the capability of overall cleaning.

Further, the size of the collar 511 is larger than that of the rotating shaft 4, at this time, the cleaning element 521 moves along the radial direction and the axial direction of the rotating shaft 4, the radial movement range of the cleaning element 521 is larger than or equal to the interval between two adjacent raised structures 5211, so that when the cleaning element 521 rotates along the rotating shaft 4 in the circumferential direction, the moving tracks of the raised structures 5211 on the bottom inner wall 21 and/or the planar structure of the inner tub 2 are staggered, thereby achieving the overall cleaning of the bottom inner wall 21 of the inner tub 2 and the bottom wall of the pulsator 3. Meanwhile, the axial movement range of the cleaning element 521 is greater than or equal to the distance between the pulsator 3 and the inner tub 2, so that the cleaning element 521 can contact with the bottom inner wall 21 of the pulsator 3 and the inner tub 2 during the axial movement process to clean the bottom inner wall 21 of the inner tub 2 and the bottom wall of the pulsator 3, and dirt is prevented from being attached.

Further, a plurality of cleaning members 521 are disposed on the collar 511, the plurality of cleaning members 521 are distributed along the radial direction and/or the axial direction of the rotating shaft 4, and the raised structures 5211 on the plurality of cleaning members 521 have the same or different shapes and/or the same or different distribution densities. When the collar 511 is fixedly connected to the rotating shaft 4, it is preferable that the plurality of protruding structures 5211 on the cleaning members 521 have different distribution densities, so as to ensure that the moving tracks of the plurality of protruding structures 5211 on the cleaning members 521 on the bottom inner wall 21 of the inner tub 2 and/or the planar structure are staggered, thereby achieving overall cleaning of the bottom inner wall 21 of the inner tub 2 and the bottom wall of the pulsator 3.

The third concrete implementation mode: as shown in fig. 5, the cleaning device includes a wave cleaning member 52 provided on the bottom inner wall 21 of the inner tub 2 or on the bottom wall of the pulsator 3, and a positioning member 52 connected to the positioning member and movable in the axial direction of the inner tub 2. Specifically, the wave cleaning component 52 is a long strip-shaped cleaning piece, the positioning components are positioning pillars 54 arranged at two ends of the cleaning piece, one end of each positioning pillar 54 is fixed on the bottom inner wall 21 of the inner barrel 2 or the bottom wall of the impeller 3, the other end of each positioning pillar 54 is suspended, and the wave cleaning component 52 can reciprocate within the length range of the positioning pillar 54; the cleaning piece can move up and down within the length range of the positioning column 54 under the action of water flow in the impeller 3 and the inner barrel 2, and is contacted with the bottom wall of the impeller 3 and the bottom inner wall 21 of the inner barrel 2 to clean dirt stuck on the surfaces of the impeller 3 and the inner barrel. When the positioning column 54 is fixed to the pulsator 3, the bottom wall of the pulsator 3 is cleaned, and when the positioning column 54 is fixed to the bottom inner wall 21 of the inner tub 2, the bottom inner wall 21 of the inner tub 2 is cleaned.

Furthermore, in order to realize that the cleaning piece slides up and down along the length direction of the positioning column 54, a groove is formed in one side, close to the cleaning piece, of the positioning column 54 along the length direction of the positioning column 54, sliding blocks matched with the groove are arranged at two ends of the cleaning piece, the sliding blocks can slide up and down along the inside of the groove so as to drive the cleaning piece to slide up and down, and the free end of the positioning column 54 is designed to be closed so as to prevent the sliding blocks from sliding out.

Or, both ends of the cleaning piece are also provided with lantern rings connected with the positioning column 54, both ends of the cleaning piece are sleeved on the positioning column 54 through the lantern rings, and the size of the lantern rings is larger than or equal to that of the positioning column 54. Through the lantern ring on reference column 54 thereby slide drive cleaning piece on reference column 54, preferably design the size of the lantern ring into the size that is greater than reference column 54 to the lantern ring can move in reference column 54 length direction and radial direction, drives cleaning piece and moves in reference column 54 length direction and radial direction, can make a round trip to rub at the contact surface when cleaning piece cleans impeller 3 or interior bucket 2, thereby will be stained with the better clearance of dirt that attaches. In order to prevent the collar from being separated from the positioning column 54, a limiting structure is further disposed at the free end of the positioning column 54, the limiting structure is a convex ring formed by radially protruding the free end of the positioning column 54 towards the positioning column 54, and the size of the collar is smaller than that of the convex ring.

The fourth concrete implementation mode: as shown in fig. 6, the cleaning device 5 may be rotatably disposed at a bottom wall of the pulsator 3, and/or may be rotatably disposed at a bottom inner wall 21 of the inner tub 2. One or more cleaning devices 5 are disposed on the bottom wall of the pulsator 3 and/or the bottom inner wall 21 of the inner tub 2. The cleaning device 5 comprises a rotating shaft center 53 and a cleaning component 52 rotatably arranged on the rotating shaft center 53, the bottom wall of the impeller 3 comprises a plane structure, the rotating shaft center 53 is fixed on the plane structure, and/or the rotating shaft center 53 is fixed on the bottom inner wall 21 of the inner barrel 2; the cleaning component 52 is a long cleaning piece 521, the center of the cleaning piece 521 is arranged on the rotating shaft center 53, the length of the cleaning piece 521 is smaller than or equal to the radius of the impeller 3, and/or the length of the cleaning piece 521 is smaller than or equal to the radius of the bottom inner wall 21 of the inner barrel 2. During the washing of the laundry, the cleaning member 52 rotates around the rotation axis 53 by the water current, thereby cleaning the bottom inner wall 21 of the inner tub 2 and the bottom wall of the pulsator 3, respectively.

Example 2

This embodiment is to add an assembling structure for assembling the cleaning device 5 between the inner tub 2 and the pulsator 3 to the embodiment 1, as shown in fig. 7 to 10. The cleaning device 5 rotates by taking the assembly structure as a center in the clothes washing process, so that the rotating action and the rotating track of the cleaning device 5 are normalized when the cleaning device 5 rotates between the inner barrel 2 and the impeller 3, and the condition that the cleaning device 5 is directly arranged on the rotating shaft 4 and damages the rotating shaft 4 when rotating around the rotating shaft 4 is avoided.

Further, as shown in fig. 7, the washing machine includes a rotating shaft 4 penetrating through the inner tub 2, the pulsator 3 is fixedly connected to the rotating shaft 4, and the assembly structure is disposed on the pulsator 3 or the rotating shaft 4. Through with fixed the setting of assembly structure on impeller 3 or pivot 4, rotate through pivot 4 or impeller 3 and drive the assembly structure and rotate, finally drive cleaning device 5 and rotate, when guaranteeing that cleaning device 5 and rotatable clean mode between interior bucket 2 and impeller 3 are clean, still avoided directly setting up cleaning device 5 on pivot 4.

Further, assembly structure includes a center cylinder 6, the inside confession that sets up of center cylinder 6 the passageway 61 that pivot 4 passed, center cylinder 6 cover is established on pivot 4, and center cylinder 6's size is greater than the size of pivot 4, and pivot 4 can be in the accessible rotation of center cylinder 6's internal passage 61, center cylinder 6's one end is fixed on impeller 3, the other end is unsettled, cleaning device 5 with center cylinder 6 is connected, drives cleaning device 5 and rotates at 3 rotation in-process of impeller, makes cleaning device 5 use center cylinder 6 to rotate as the center.

Further, the cleaning device 5 includes a connecting member 51 and a cleaning member 52 connected to the connecting member 51, the connecting member 51 is connected to the center cylinder 6, and the cleaning member 52 rotates around the center cylinder 6 via the connecting member 51 during the rotation of the pulsator 3. The connecting part 51 is movably or fixedly connected with the central cylinder 6, in order to achieve a more comprehensive cleaning effect, the connecting part 51 and the central cylinder 6 are movably connected, so that the connecting part 51 can move along the axial direction, the radial direction and the circumferential direction of the central cylinder 6, and the movement track of the cleaning part 52 on the central cylinder 6 is set to realize cleaning on the bottom wall of the impeller 3 and the bottom inner wall 21 of the inner barrel 2.

The first embodiment is as follows: in order to prevent the connecting member 51 from falling off the center post 6, a stopper structure is further provided on the center post 6. As shown in fig. 7, the limiting structure is a first convex ring 62 formed by radially protruding the free end of the central cylinder 6, the connecting component 51 is a sleeve ring 511 sleeved on the central cylinder 6, and the size of the sleeve ring 511 is larger than that of the central cylinder 6 and smaller than that of the first convex ring 62, so that the cleaning device 5 moves between the first convex ring 62 and the pulsator 3 along the axial direction of the central cylinder 6 without falling off. Meanwhile, a plurality of cleaning devices 5 can be arranged on the central column 6, and the lantern rings 511 of the plurality of cleaning devices 5 are sleeved on the central column 6 along the axial direction of the central column 6.

The second embodiment is as follows: as shown in fig. 8 to 10, the outer peripheral surface of the center cylinder 6 is formed into a concave ring 63 which is recessed inward, and the connecting member 51 is inserted into the concave ring 63. As shown in fig. 8 and 10, two sides of the concave ring 63 extend towards the direction approaching each other to form a stop portion 631, so that the longitudinal section of the concave ring 63 is in a C-shaped structure, the connecting member 51 is a connecting block 512, and the connecting block 512 extends into the concave ring 63 and is stopped by the stop portion 631; the connection member 51 includes a clamping section 5122 and a connection section 5121, the clamping section 5122 is perpendicular to the connection section 5121 and is disposed in a T-shaped structure, the clamping section 5122 is embedded in the concave ring 63 in a direction perpendicular to the pulsator 3 and is blocked by the blocking portion 631, and the connection section 5121 connects the clamping section 5122 and the cleaning member 52. The length of the clamping section 5122 is greater than the width between the oppositely disposed stops 631 and less than the size of the concave ring 63, so that the cleaning device 5 can move inside the concave ring 63 along the axis, the radial direction and the circumferential direction of the central cylinder 6 without falling off.

Further, as shown in fig. 10, a spherical groove 5123/spherical protrusion 513 is disposed at one end of the connecting member 51 connected to the cleaning member 52, and a spherical protrusion 513/spherical groove 5123 is disposed at the corresponding end of the cleaning member 52 connected to the connecting member 51, so that during the rotation of the pulsator 3, the cleaning member 521 rotates and rotates in the spherical groove 5123 through the spherical protrusion 513, thereby achieving a better cleaning effect. Meanwhile, a plurality of cleaning devices 5 can be arranged on the central column 6, and T-shaped structures of the plurality of cleaning devices 5 are embedded in the concave ring 63 along the circumferential direction of the concave ring 63.

Alternatively, as shown in fig. 9, the concave ring 63 is a spherical concave ring 632 formed by inward recessing of the outer circumferential surface of the central cylinder 6, the connection member 51 is a spherical protrusion 513 matched with the spherical concave ring 632, and the cleaning member 52 rotates in the spherical concave ring 632 through the spherical protrusion 513 to rotate and revolve around the central cylinder 6 during the rotation of the pulsator 3, thereby achieving the overall cleaning of the gap between the pulsator 3 and the inner tub 2. Meanwhile, a plurality of cleaning devices 5 may be further disposed on the central column 6, and the spherical protrusions 513 of the plurality of cleaning devices 5 are embedded in the spherical concave ring 632 along the circumferential direction of the spherical concave ring 632. The size of the spherical projection 513 is smaller than that of the spherical concave ring 632 so that the cleaning device 5 can move in the axial direction, the radial direction, and the circumferential direction of the central cylinder 6 inside the spherical concave ring 632 without falling off.

The third concrete implementation mode: the protruding second bulge loop that forms of peripheral surface towards radial direction of center cylinder 6, the tip of second bulge loop court the joint ring that forms is extended at the one end or both ends of center cylinder 6 to the messenger the longitudinal section of second bulge loop is T type structure, set up on the adapting unit 51 with T type structure assorted C type groove, the joint ring stretches into in the C type groove, 3 rotation in-process of impeller cleaning component 52 is followed the second bulge loop is walked around. The length of the snap ring is smaller than the size of the C-shaped groove, so that the cleaning device 5 can move along the second convex ring in the axial direction, the radial direction and the circumferential direction of the central cylinder 6 without falling off.

Further, a spherical groove 5123/spherical protrusion 513 is disposed at one end of the connecting member 51 connected to the cleaning member 52, and a spherical protrusion 513/spherical groove 5123 is disposed at the corresponding end of the cleaning member 52 connected to the connecting member 51, so that during the rotation of the pulsator 3, the cleaning member 52 rotates and rotates in the spherical groove 5123 through the spherical protrusion 513, thereby achieving a better cleaning effect. Meanwhile, the central column 6 can be further provided with a plurality of cleaning devices 5, and the C-shaped grooves of the plurality of cleaning devices 5 are clamped on the second convex ring along the circumferential direction of the second convex ring.

The fifth concrete implementation mode:

the present embodiment is further defined in the cleaning member 52 on the basis of the first to fourth embodiments, as shown in fig. 7 to 10. The cleaning member 52 is a strip-shaped cleaning member 521, and the effect of the cleaning member 521 for cleaning between the inner tub 2 and the pulsator 3 is the same as the cleaning member 52 of the first embodiment of embodiment 1, and is not described herein again.

Further, in order to increase the cleaning capability of the cleaning member 521, an auxiliary cleaning structure is further disposed on the cleaning member 521, and the auxiliary cleaning structure can deform under the action of a force, so as to avoid the problem that the contact surface between the cleaning member 521 and the pulsator 3 or the bottom inner wall 21 of the inner tub 2 is inverted due to interference of a certain position, and the rest of the contact surface cannot be cleaned. The auxiliary cleaning structure and the function are the same as those of the auxiliary cleaning structure of the second embodiment in embodiment 1, as shown in fig. 4, and are not repeated herein.

Further, the connecting member 51 is movably connected to the central column 6, and at this time, the cleaning element 521 can move along the radial direction, the axial direction and the circumferential direction of the central column 6, the radial movement range of the cleaning element 521 is greater than or equal to the interval between two adjacent protruding structures 5211, and when the cleaning element 521 rotates along the circumferential direction of the central column 6, the moving tracks of the protruding structures 5211 on the bottom inner wall 21 of the inner tub 2 and/or the planar structure are staggered, so that the bottom inner wall 21 of the inner tub 2 and the bottom wall of the pulsator 3 can be completely cleaned. Meanwhile, the axial movement range of the cleaning element 521 is greater than or equal to the distance between the pulsator 3 and the inner tub 2, so that the cleaning element 521 can contact with the bottom wall of the pulsator 3 and the bottom inner wall 21 of the inner tub 2 during the axial movement along the central column 6 to clean the bottom inner wall 21 of the inner tub 2 and the bottom wall of the pulsator 3, and dirt is prevented from attaching.

Example 3

This embodiment is based on

embodiments

1 and 2, and a position holding device is provided on the cleaning device 5 for holding the cleaning device 5 at a certain position, as shown in fig. 11 and 12. Since the cleaning device 5 is a cantilever structure using the rotating shaft 4 or the assembly structure as a fulcrum, since the cleaning member 52 is in a flat and long strip shape and extends out longer, there may occur a problem that the washing member is inclined to wash unclean or the middle shaft portion rubs against the bottom wall of the pulsator 3 or the bottom inner wall 21 of the inner tub 2. The invention ensures that the distance between the cleaning device 5 and the bottom wall of the impeller 3 and the bottom inner wall 21 of the inner barrel 2 is kept stable in the rotating process by arranging the position maintaining device, so that the cleaning component 52 is always kept in contact with the bottom inner wall of the inner barrel and the bottom wall of the impeller in the rotating process, and the bottom wall of the impeller 3 or the bottom inner wall of the inner barrel 2 is better cleaned.

Further, the washing machine further comprises a rotating shaft 4 penetrating through the bottom of the inner barrel 2, the pulsator 3 is fixedly connected with the rotating shaft 4, the cleaning device 5 comprises a connecting part 51 and a cleaning part 52, the cleaning part 52 is arranged on the rotating shaft 4 through the connecting part 51, and the structures of the connecting part 51 and the cleaning part 52 are any one of the structures disclosed in embodiment 1 and embodiment 2, and are not repeated herein. The position maintaining device is provided on the cleaning member 52, and the position maintaining device is required to be in contact with both the bottom wall of the pulsator 3 and/or the bottom inner wall 21 of the inner tub 2, thereby achieving better cleaning.

Further, the cleaning member 52 at least includes a first end connected to the connecting member 51 and a second end extending toward the outer peripheral edge of the pulsator 3, and preferably, the bottom wall of the pulsator 3 includes a planar structure, and the cleaning member 52 is elongated, and has one end connected to the connecting member and the other end extending to the edge of the planar structure. The position maintaining means is provided on the cleaning member 52 on the second end portion and/or between the first end portion and the second end portion. The cleaning component 52 is rotatably connected between the inner barrel 2 and the impeller 3 and rotates around the rotating shaft 4 or the assembling structure in the cleaning process, the position maintaining device comprises a rolling component, and the rolling component is kept in rolling contact with the bottom wall of the impeller 3 and/or the bottom inner wall 21 of the inner barrel 2, so that the distance between the cleaning component 52 and the bottom wall of the impeller 3 and the bottom inner wall 21 of the inner barrel 2 in the rotating process is kept stable, and the cleaning component 52 is always kept in contact with the bottom inner wall of the inner barrel and the bottom wall of the impeller in the rotating process. In order to obtain better cleaning effect, the rolling components are preferably kept in rolling contact with the bottom wall of the pulsator 3 and the bottom inner wall 21 of the inner tub 2. When the cleaning component 52 is provided with auxiliary cleaning structures, and the auxiliary cleaning structures are the convex columns uniformly distributed at intervals on the cleaning component 52, the length of the convex columns is set to be capable of simultaneously contacting with the bottom wall of the impeller 3 and the bottom inner wall 21 of the inner barrel 2. The following are several specific embodiments of the rolling element:

the first embodiment is as follows: the rolling part is a rolling ring 7, and the second end part is provided with an assembling structure for assembling the rolling ring 7; preferably, the fitting structure is an annular groove 522 provided on the second end portion, and the rolling ring 7 is in clearance fit with the annular groove 522 and is not separated from the second end portion.

The second embodiment is as follows: the rolling part is a rolling ring 7, the rolling ring 7 comprises an inner ring 71 and an outer ring 72, the inner ring 71 is tightly matched with the annular groove 522, a plurality of first balls 73 are arranged between the outer ring 72 and the inner ring 71, the first balls 73 are in rolling contact with the inner surface of the outer ring 72 and the outer surface of the inner ring 71 and cannot be separated from the inner ring 71 and the outer ring 72, and the outer ring 72 is in rolling contact with the bottom wall of the impeller 3 and the bottom inner wall 21 of the inner barrel 2.

The third concrete implementation mode: the rolling component comprises a roller and a roller shaft, the roller is arranged on the end surface of the second end part through the roller shaft, and the roller is in rolling contact with the bottom wall of the impeller 3 and the bottom inner wall 21 of the inner barrel 2.

The fourth concrete implementation mode: the rolling component is a second ball, the second end of the cleaning component 52 is provided with a ball groove, the second ball is embedded in the ball groove, and the second ball is in rolling contact with the bottom wall of the impeller 3 and the bottom inner wall 21 of the inner barrel 2.

Example 4

In this embodiment, a stopping structure 8 for stopping and moving the cleaning device 5 is added on the basis of embodiments 1-3, as shown in fig. 11. Because the cleaning component 52 drives the cleaning component to rotate by the water flow which is driven by the rotation of the impeller 3 or the inner barrel 2, the cleaning component rotates around the rotating shaft 4 or the assembly structure in a free state, at the moment, the cleaning between the inner barrel 2 and the impeller 3 is randomly cleaned by the operation state of the cleaning component 52, and the problem that the rotation angle is limited at a certain position or the cleaning component can not rotate at a large angle under the soft water flow and only can be partially cleaned can occur. The embodiment realizes the omnibearing cleaning of the inner wall at the bottom of the inner barrel 2 and the bottom wall of the impeller 3 by adding the stopping structure 8 to drive the cleaning device 5 to move.

Specifically, the stopping structure 8 is a convex pillar formed by protruding the bottom wall of the pulsator 3 toward the bottom of the inner tub 2, and the distance between the convex pillar and the rotating shaft 4 is smaller than the length of the cleaning component 52. In the process of processing clothes, the wave wheel 3 rotates forward and backward alternately relative to the inner barrel 2, because the speed difference exists between the wave wheel 3 and the cleaning component 52, the rotating speed of the wave wheel 3 is obviously higher than that of the cleaning component 52, when the wave wheel 3 rotates forward and moves to the convex column on the bottom wall of the wave wheel 3 to be contacted with the cleaning component 52, the convex column blocks the cleaning component 52 and the wave wheel 3 to move relatively, and drives the cleaning component 52 to rotate along with the wave wheel 3, thereby realizing the omnibearing cleaning of the bottom inner wall 21 of the inner barrel 2. When the impeller 3 finishes the positive rotation period, the impeller 3 rotates reversely in the opposite direction, the cleaning component 52 is separated from the convex column, at the moment, the impeller 3 and the cleaning component 52 move relatively in one circumference, so that the bottom wall of the impeller 3 is effectively cleaned by the cleaning component 52, and after the convex column is contacted with the cleaning component 52, the cleaning component is stopped and driven again. In another embodiment, the washing machine is a dual-drive washing machine, and the stop structure 8 can be designed on the inner wall 21 of the bottom of the inner tub 2 to achieve the same effect. Specifically, the inner wall of the bottom wall of the inner tub 2 protrudes in a direction close to the pulsator 3 to form a convex column, and the distance between the convex column and the rotating shaft 4 is smaller than the length of the cleaning component 52. The stop structure 8 is preferably arranged on the bottom wall of the pulsator 3.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A clothes treating apparatus comprising an inner tub and a pulsator rotatably provided in the inner tub, wherein a cleaning device is provided between a bottom of the inner tub and the pulsator, and a position maintaining device for maintaining the cleaning device at a certain position is provided on the cleaning device.

2. The laundry treating apparatus according to claim 1, further comprising a rotation shaft penetrating the bottom of the inner tub, the pulsator being fixedly connected to the rotation shaft, the cleaning device including a connection member through which the cleaning member is provided on the rotation shaft, and a cleaning member provided on the cleaning member and held in contact with a bottom wall of the pulsator and/or a bottom inner wall of the inner tub.

3. A laundry treating apparatus according to claim 2, wherein the cleaning member includes at least a first end portion connected with the connecting member and a second end portion extending toward an outer peripheral edge of the pulsator, and the position maintaining device is provided on the cleaning member and on and/or between the second end portion and the first end portion.

4. A laundry treating apparatus according to claim 3, wherein the position maintaining device includes a rolling member, the rolling member being in rolling contact with a bottom wall of the pulsator and/or a bottom inner wall of the inner tub;

5. A laundry treating apparatus according to claim 4, wherein the rolling member is a rolling ring, and the second end portion has a fitting structure to which the rolling ring is fitted;

6. The laundry treating apparatus according to claim 5, wherein the rolling ring includes an inner ring and an outer ring, the inner ring is tightly fitted to the annular groove, a plurality of first balls are disposed between the outer ring and the inner ring, the plurality of first balls are in rolling contact with both an inner surface of the outer ring and an outer surface of the inner ring, and the outer ring is in rolling contact with both a bottom wall of the pulsator and a bottom inner wall of the inner tub.

7. The laundry treating apparatus according to claim 4, wherein the rolling member includes a roller and a roller shaft, the roller being disposed on the end surface of the second end portion through the roller shaft, the roller being in rolling contact with both a bottom wall of the pulsator and a bottom inner wall of the inner tub.

8. The laundry treating apparatus according to claim 4, wherein the rolling member is a second ball, the second end of the cleaning member is provided with a ball groove, the second ball is embedded in the ball groove, and the second ball is in rolling contact with both the bottom wall of the pulsator and the bottom inner wall of the inner tub.

9. A laundry treating apparatus according to any one of claims 1-8, wherein the pulsator is further provided with a stopper structure for stopping and moving the cleaning device.

10. The laundry treating apparatus according to claim 9, wherein the stopping structure is a boss formed by a bottom wall of the pulsator protruding toward a bottom direction close to the inner tub, and a distance between the boss and the rotation shaft is smaller than a length of the cleaning member.