CN110938964B

CN110938964B - Pulsator assembly and clothes treating apparatus including the same

Info

Publication number: CN110938964B
Application number: CN201811113986.8A
Authority: CN
Inventors: 赵志强; 吕佩师; 许升
Original assignee: Qingdao Jiaonan Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Jiaonan Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2018-09-25
Filing date: 2018-09-25
Publication date: 2021-08-24
Anticipated expiration: 2038-09-25
Also published as: CN110938964A

Abstract

The invention relates to the technical field of clothes treatment, in particular to a pulsator assembly and clothes treatment equipment comprising the same. The invention aims to solve the problem that the impeller cannot improve the dissolving effect of a detergent. The impeller assembly comprises a wheel disc and a rotating wheel below the wheel disc, wherein a through hole is formed in the center of the wheel disc, an injection hole is formed around the through hole, a rotating part is arranged in the through hole, the wheel disc is connected with a transmission shaft through the rotating part and freely rotates, the rotating wheel comprises a tube body and a water lifting structure, the tube body and the transmission shaft synchronously rotate and move along the axial direction of the transmission shaft, the water lifting structure is arranged in a manner that water below the rotating wheel rises and is sprayed out of the injection hole when the water lifting structure rotates, the rotating wheel further comprises a buoyancy unit, a first meshing structure is arranged on the tube body, a second meshing structure is arranged on the wheel disc, and when the buoyancy unit drives the rotating wheel to move upwards under the action of buoyancy, the first meshing structure is meshed with the second meshing structure. Through the arrangement mode, the detergent can obviously improve the dissolving effect of the detergent and water, and the cleanliness is improved.

Description

Pulsator assembly and clothes treating apparatus including the same

Technical Field

The invention relates to the technical field of clothes treatment, in particular to a pulsator assembly and clothes treatment equipment comprising the same.

Background

The washing machine is a clean electrical appliance for washing clothes by using electric energy, and becomes an essential household electrical appliance in daily life with the acceleration of life rhythm and high requirements of people on living comfort. Taking the pulsator washing machine as an example, the pulsator washing machine washes the clothes by means of friction between the motor and the clothes in the forward and reverse rotation process of the pulsator driven by the motor, however, the problems of single water flow, low cleanliness, serious clothes winding and the like exist in the actual washing process of the washing mode, and the use experience of users is greatly influenced.

In order to solve the above problems of the pulsator washing machine, in the prior art, the water flow direction is changed or the washing force is increased by improving the structure of the pulsator or adding a small pulsator which can rotate independently on the pulsator. However, the fundamental purpose of the impeller structure improvement or the small impeller addition is to improve the washing effect in the washing process, and the factors capable of improving the washing effect before the washing process are not considered. For example, none of these solutions is considered from the aspect of solubility of the detergent in water, and it is obvious that the degree of cleanliness of the laundry depends on the effect of dissolution of the detergent with water to a greater extent than the case of using a solution in which the flow of the washing water is improved to increase the friction between the washing water and the laundry, and therefore if the effect of dissolution of the detergent in water is poor, the degree of cleanliness of the laundry cannot be increased to a great extent even if the above-mentioned improvement is made to the pulsator.

Accordingly, there is a need in the art for a new pulsator assembly to solve the above problems.

Disclosure of Invention

In order to solve the above problems in the prior art, that is, to solve the problem that the existing impeller of the washing machine cannot improve the dissolution effect of the detergent in water, the present invention provides an impeller assembly, which includes a wheel disc and a rotating wheel disposed below the wheel disc, a through hole is disposed in the center of the wheel disc, an injection hole is disposed around the through hole, a rotating member is installed in the through hole, the wheel disc is connected with a transmission shaft of a driving device through the rotating member and can rotate freely relative to the transmission shaft, the rotating wheel includes a tube body and a water lifting structure disposed on the outer wall of the tube body, the tube body is configured to rotate synchronously with the transmission shaft and move axially along the transmission shaft, the water lifting structure is configured such that when the rotating wheel rotates, water below the rotating wheel rises axially along the tube body and is ejected from the injection hole, the runner still includes buoyancy unit, be provided with first engagement structure on the body, be provided with second engagement structure correspondingly on the rim plate, work as buoyancy unit drives under the effect of buoyancy when the runner rebound, first engagement structure with the engagement of second engagement structure, thereby the transmission shaft drives the rim plate with the runner rotates jointly.

In a preferred embodiment of the above-mentioned wave wheel assembly, an installation groove is provided on the pipe body, and the buoyancy unit is installed in the installation groove.

In a preferred technical solution of the above-mentioned wave wheel assembly, the mounting groove is an annular structure, and the annular structure is coaxial with the transmission shaft; and/or the buoyancy unit is a buoyancy chamber with a hollow structure.

In a preferred embodiment of the above-mentioned wave wheel assembly, the water lifting structure is a plurality of propeller blades arranged on the outer wall of the pipe body along the radial direction of the pipe body; or the water lifting structure is at least one spiral rib wound on the outer wall of the pipe body along the axial direction of the pipe body.

In the preferable technical scheme of the above-mentioned wave wheel assembly, the middle part of the lower surface of the wheel disc extends downwards to form an annular reinforcing rib, the reinforcing rib and the lower surface of the wheel disc are surrounded to form an accommodating cavity, and the outer edge of the water lifting structure is matched with the inner wall of the accommodating cavity.

In a preferred technical solution of the above-mentioned wave wheel assembly, the inner wall of the pipe body is provided with a first transmission structure, the transmission shaft is correspondingly provided with a second transmission structure capable of being butted with the first transmission structure, and the pipe body is synchronously rotated with the transmission shaft through the butting of the first transmission structure and the second transmission structure.

In a preferred technical solution of the above-mentioned wave wheel assembly, the first transmission structure is an internal spline, a key groove or a protrusion, the second transmission structure is an external spline, a protrusion or a key groove correspondingly, and/or the first engagement structure is a protrusion/groove provided at the top of the pipe body, and the second engagement structure is a groove/protrusion provided at the lower surface of the wheel disc correspondingly.

In a preferred technical solution of the above-mentioned wave wheel assembly, the rotating member is a bearing, an outer ring of the bearing is connected with the through hole in a fitting manner, and an inner ring of the bearing is connected with the transmission shaft.

In the preferable technical scheme of the above-mentioned wave wheel assembly, the end face of the transmission shaft is provided with a connecting hole, the connecting hole allows the limiting member to be connected therewith, and after the connecting is completed, the inner ring of the bearing is clamped between the limiting member and the end face of the transmission shaft.

The invention also provides a clothes treatment device, which comprises a shell and a washing barrel arranged in the shell, wherein the impeller assembly in any one of the preferred technical schemes is arranged in the washing barrel.

As can be understood by those skilled in the art, in a preferred embodiment of the present invention, the pulsator assembly includes a wheel disc and a rotating wheel disposed below the wheel disc, a through hole is disposed in the center of the wheel disc, an injection hole is disposed around the through hole, a rotating member is installed in the through hole, the wheel disc is connected to a transmission shaft of the driving device through the rotating member and can freely rotate relative to the transmission shaft, the rotating wheel includes a tube body and a water lifting structure disposed on the outer wall of the tube body, the tube body is configured to move in the axial direction of the transmission shaft while synchronously rotating with the transmission shaft, the water lifting structure is configured such that when the rotating wheel rotates, water below the rotating wheel rises in the axial direction of the tube body and is ejected from the injection hole, the rotating wheel further includes a buoyancy unit, a first engagement structure is disposed on the tube body, a second engagement structure is correspondingly disposed on the wheel disc, when the buoyancy unit drives the rotating wheel to move upward under the action of buoyancy, the first engaging structure and the second engaging structure are engaged, so that the transmission shaft drives the wheel disc and the rotating wheel to rotate together.

Through the arrangement of the impeller assembly, the impeller assembly can obviously improve the dissolving effect of detergent and water, thereby improving the washing effect and the cleanliness and preventing clothes from being wound. Particularly, when the water level is low and the buoyancy is insufficient, the rotating wheel moves downwards under the action of gravity, the first meshing structure is separated from the second meshing structure, the transmission shaft only drives the rotating wheel to rotate, the rotating wheel can rotate at high speed due to the small size of the rotating wheel, and water below the rotating wheel is driven by the water lifting structure to rapidly upwelle and be sprayed out from the spray holes, so that the efficient mixing and dissolving of the detergent and the water are realized, and the utilization rate of the detergent is improved; when the water level is high and the buoyancy is large, the buoyancy unit drives the rotating wheel to move upwards under the action of the buoyancy, the first meshing structure is meshed with the second meshing structure, so that the rotating wheel and the wheel disc are driven to rotate together by the transmission shaft, the clothes are repeatedly washed by the washing water which is fully dissolved, and the cleanliness in the washing process is improved. In the rotating process, the rotating wheel still can gush out the washing water and spray out the washing water from the jet hole under the action of the water lifting structure, and strong water flow can spray and brush the clothes while supporting and suspending the clothes, so that the abrasion degree of the impeller to the clothes is reduced, the winding among the clothes is effectively avoided, the washing degree of the clothes is improved, and the user experience is greatly improved. That is, compared with the technical scheme of improving the impeller structure or increasing the small impeller in the prior art, the invention obviously improves the dissolving degree of the detergent in water by arranging the rotating wheel with the water lifting structure below the wheel disc, thereby greatly improving the washing degree of clothes. In addition, the friction between the wheel disc and the transmission shaft is reduced due to the arrangement of the rotating part, and the service life of the wheel disc is prolonged.

Drawings

The pulsator assembly and the laundry treating apparatus including the same according to the present invention will be described with reference to the accompanying drawings in conjunction with a pulsator washing machine. In the drawings:

FIG. 1 is a schematic structural view of a pulsator washing machine according to the present invention;

FIG. 2 is a schematic structural view of a functional pulsator assembly according to a first embodiment of the present invention;

fig. 3 is a schematic structural view of a wave wheel assembly in a second functional embodiment of the invention.

List of reference numerals

1. A wheel disc; 12. an injection hole; 13. a second engagement structure; 14. reinforcing ribs; 15. water-repellent leaves; 16. a circular platform; 17. a decorative cover; 2. a rotating wheel; 21. a pipe body; 212. a first transmission structure; 22. a buoyancy unit; 23. a water lifting structure; 4. a housing; 5. a washing tub; 6. a drive device; 61. a drive shaft; 611. connecting holes; 62. a second transmission structure; 7. a limiting member; 8. a shaft sleeve; 9. and a bearing.

Detailed Description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the present embodiment is described in conjunction with a pulsator washing machine, this is not intended to limit the scope of the present invention, and it may be appreciated by those skilled in the art that the present invention may be applied to other laundry treatment apparatuses with a pulsator assembly, such as a shoe washing machine with a pulsator assembly or a drum pulsator two-in-one washing machine, in addition to the pulsator washing machine.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 by those skilled in the art according to specific situations.

Referring first to fig. 1 and 2, a pulsator washing machine according to the present invention will be described. Wherein, fig. 1 is a schematic structural diagram of the pulsator washing machine of the present invention; fig. 2 is a schematic structural view of a functional pulsator assembly according to a first embodiment of the present invention.

As shown in fig. 1, in order to solve the problem that the impeller of the washing machine in the prior art cannot improve the dissolving effect of the detergent in water, the impeller washing machine of the present invention mainly comprises a housing 4, a washing tub 5 and a driving device 6 (such as a driving motor) are arranged in the housing 4, and an impeller assembly is arranged in the washing tub 5. The impeller assembly mainly comprises a wheel disc 1 and a rotating wheel 2 arranged below the wheel disc 1, wherein a plurality of water stirring blades 15 are arranged on the upper surface of the wheel disc 1, a plurality of injection holes 12 are formed in the middle of the wheel disc 1, and the wheel disc 1 is arranged to be capable of freely rotating relative to a transmission shaft 61 of a driving device 6. The runner 2 comprises a pipe body 21, and the pipe body 21 can be sleeved on the transmission shaft 61 in a vertically movable mode and can also rotate synchronously with the transmission shaft 61. The outer wall of the tube body 21 is provided with a water lifting structure 23, and the water lifting structure 23 is arranged such that when the runner 2 rotates, water below the runner 2 gushes upwards along the axial direction of the tube body 21 and is sprayed out from the spray holes 12. The pipe body 21 is further provided with a buoyancy unit 22 and a first meshing structure (not shown in the figure), the transmission shaft 61 is correspondingly provided with a second meshing structure 13, when the buoyancy unit 22 drives the runner 2 to move upwards under the action of buoyancy, the first meshing structure can be meshed with the second meshing structure 13, and therefore the transmission shaft 61 drives the runner 2 and the wheel disc 1 to rotate together.

When the pulsator washing machine is in operation, the transmission shaft 61 of the driving device 6 only drives the rotating wheel 2 to rotate when the water level is low and the buoyancy is not enough to move the rotating wheel 2 upwards. At this time, the water under the runner 2 is rapidly sprayed from the spray hole 12 by the lifting structure, and the sprayed water can effectively promote the efficient mixing and dissolution of the detergent and the water. When the water level is high and the buoyancy is enough to move the rotating wheel 2 upwards, the first engaging structure and the second engaging structure 13 are combined, so that the driving device 6 drives the rotating wheel 2 and the wheel disc 1 to rotate simultaneously through the transmission shaft 61, and the clothes are repeatedly washed by using the washing water which is fully dissolved. And, the washing water under the wheel 2 is continuously sprayed from the spray holes 12 during the washing process.

As can be seen from the above description, the pulsator assembly of the present invention can drive the rotating wheel 2 to rotate at a high speed through the transmission shaft 61 when the wheel disc 1 is not combined with the rotating wheel 2, and the water lifting structure 23 drives the water flow to be sprayed from the spray holes 12, so as to significantly improve the dissolving effect of the detergent and the water, thereby improving the washing effect and the cleanliness when the rotating wheel 2 and the wheel disc 1 are combined to rotate together, and preventing the laundry from being entangled. In other words, compared with the technical scheme of improving the impeller structure or increasing the small impeller in the prior art, the invention obviously improves the dissolving degree of the detergent in water by arranging the rotating wheel 2 with the water lifting structure 23 below the wheel disc 1, thereby greatly improving the washing degree of clothes, improving the user experience and being suitable for large-scale popularization.

Next, with further reference to fig. 2, the pulsator assembly of the present invention will be described in detail.

In one possible embodiment, as shown in fig. 2, the wheel disc 1 is substantially disc-shaped, a concave circular platform 16 is provided in the middle of the upper surface of the wheel disc 1, a through hole (not shown) is provided in the center of the circular platform 16, and a decorative cover 17 is provided above the circular platform 16. The section of the transmission shaft 61 is circular, a connecting hole 611 corresponding to the through hole is formed in the top surface of the transmission shaft 61, and the limiting member 7 can penetrate through the through hole to be connected with the connecting hole 611, so that the wheel disc 1 is fixed between the limiting member 7 and the top surface of the transmission shaft 61. The limiting member 7 may be a screw, and correspondingly, the connecting hole 611 is a threaded hole, and a nut of the screw and a top surface of the transmission shaft 61 respectively play a role in limiting the circular platform 16 up and down, so that the wheel disc 1 is limited between the nut and the top surface of the transmission shaft 61. In addition, in order to guarantee the free rotation of the wheel disc 1, the friction between the wheel disc 1 and a screw in the rotation process is reduced, a shaft sleeve 8 is further arranged in the through hole, and the shaft sleeve 8 is in interference fit with the through hole and is in clearance fit with the screw. Corresponding to the circular platform 16, the middle part of the lower surface of the wheel disc 1 extends downwards to form an annular reinforcing rib 14, and the annular reinforcing rib 14 and the lower surface of the wheel disc 1 are surrounded to form an accommodating cavity. A plurality of linear and diagonal injection holes 12 are provided around the through-hole, and the injection holes 12 are communicated with the receiving chamber.

With continued reference to fig. 2, the inner wall of the tube body 21 is provided with a first transmission structure 212, the transmission shaft 61 is correspondingly provided with a second transmission structure 62, and the tube body 21 and the transmission shaft 61 rotate synchronously through the butt joint of the first transmission structure 212 and the second transmission structure 62. As shown in fig. 2, the first transmission structure 212 is a key groove, the second transmission structure 62 is correspondingly a protrusion, the protrusion and the key groove are connected in a matching manner, so that power can be transmitted, and the runner 2 can move up and down relative to the transmission shaft 61 through relative sliding between the key groove and the protrusion. The upper end of the pipe body 21 is provided with an annular mounting groove (not shown) near the inner pipe hole, which is coaxially provided with the transmission shaft 61, and the buoyancy unit 22, which is also annular, is mounted in the mounting groove. First engagement structure can be the recess that the up end of body 21 set up, and second engagement structure 13 correspondingly is the arch that the lower surface of rim plate 1 set up, through the mode of protruding embedding recess, realizes the butt joint of rim plate 1 and runner 2 and the power transmission between drive arrangement 6 and runner 2 and rim plate 1. The water lifting structure 23 is formed by winding a plurality of spiral ribs arranged on the outer wall of the pipe body 21 along the axial direction of the pipe body 21, the outer edges of the spiral ribs are matched with the inner wall before containing, and then the spiral ribs, the pipe body 21 and the containing cavity jointly form the Archimedes spiral pipe. Preferably, the spiral rib is integrally formed with the tube body 21, but the spiral rib and the tube body 21 may be formed separately or partially integrally.

It should be noted that, in the present invention, the specific form of the buoyancy unit 22 is not exclusive, and the arrangement mode applied to different products may be slightly different as long as it meets the condition that the runner 2 can be floated or sunk after being installed on the runner 2. For example, the buoyancy unit 22 may be made of inorganic material and/or organic polymer material with low density (such as expanded polyethylene, polystyrene, etc.), and the density thereof may be 0.001-1 g/cm³Preferably 0.1 to 0.7g/cm³. For example, the buoyancy unit 22 may be a solid compound obtained by filling an organic polymer material with an inorganic lightweight filler and performing a physicochemical reaction. For another example, the buoyancy unit 22 may also be a buoyancy chamber having a hollow structure, such as hollow glass, plastic, aerogel, etc.

The operation of the pulsator washing machine according to the present invention will be described in detail with reference to fig. 1 and 2.

As shown in fig. 1 and 2, when the washing tub 5 is just filled with water and the water level is low, the rotating wheel 2 is kept at the bottom of the washing tub 5 or suspended in the washing water under the action of gravity due to insufficient buoyancy, so that the wheel disc 1 is not meshed with the rotating wheel 2, at this time, the transmission shaft 61 of the driving device 6 only drives the rotating wheel 2 to rotate, and the rotating wheel 2 rotates at high speed due to the small volume of the rotating wheel 2, and the water below the rotating wheel 2 rushes upwards under the driving of the spiral ribs. In the rotating process of the rotating wheel 2, washing water enters a cavity between the rotating wheel 2 and the containing cavity, the spiral rib also rotates for a circle when the rotating wheel 2 rotates for a circle, the washing water below the rotating wheel 2 is sucked into the Archimedes spiral pipe under the driving of the spiral rib, the washing water in the Archimedes spiral pipe is upwards pushed into one or more screw pitches by the spiral rib, along with the high-speed rotation of the spiral rib, the washing water in the cavity is rapidly pressurized and upwards surged along the axial direction of the pipe body 21, finally the water passes through the jet hole 12 to form strong high-pressure jet water flow to be upwards jetted, and the water and the detergent are highly mixed and dissolved in the jetting process.

Along with last water injection in the washtub 5, the water level risees, and buoyancy increases, and buoyancy unit 22 drives runner 2 rebound under the buoyancy effect, and the recess on the removal in-process body 21 meshes with the arch of rim plate 1 below to rim plate 1 and runner 2 butt joint, because rim plate 1 diameter is great, therefore transmission shaft 61 can reduce the rotational speed and drive rim plate 1 and runner 2 rotate together this moment. In the rotating process, the first water-stirring blade 15 drives the washing water above the wheel disc 1 to generate vortex, and the clothes are washed repeatedly. The washing water below the rotating wheel 2 continuously flows through the Archimedes spiral pipe to be sprayed out from the spraying hole 12, and the strong water flow can lift and keep the clothes suspended and spray the clothes.

It should be noted that in the above description, the low water level refers to the water level when the runner 2 is not engaged with the wheel disc 1, and may be the water level corresponding to the runner 2 not floating at all, or floating to the water level just not engaged. Accordingly, a high water level refers to any water level that corresponds to when the runner 2 is engaged with the disc 1. It can be understood by those skilled in the art that the values of the low water level and the high water level and the specific values of the rotation speed of the driving device 6 corresponding to the low/high water levels are different according to the shape and the configuration of the washing apparatus and the material of the buoyancy unit 22, and the specific values thereof can be completely obtained based on laboratory experimental data and will not be described herein again.

From the above description, the rotating wheel 2 is arranged below the wheel disc 1 and the buoyancy unit 22 is arranged on the rotating wheel 2 innovatively, so that the driving device 6 can drive the rotating wheel 2 to rotate at high speed when the water level is low, the detergent and water are efficiently mixed and dissolved, the utilization rate of the detergent is improved, the driving device 6 can drive the wheel disc 1 and the rotating wheel 2 to rotate simultaneously when the water level is high, the wheel disc 1 and the rotating wheel 2 drive the fully dissolved washing water to repeatedly wash clothes, and the cleanliness in the washing process is greatly improved. Spiral muscle, body 21 and hold the chamber and form the mode of setting up of Archimedes spiral pipe, when runner 2 operates, can form powerful jet stream and hold up the clothing and carry out the spary to the clothing, this kind of ingenious mode of setting up has not only strengthened the injection effect of rivers, realizes effectively dissolving of detergent, has improved the clean degree of clothing, can also avoid the winding between the clothing, reduces the degree of wear of impeller to the clothing, effectively care the clothing. The buoyancy unit 22 is annular and is arranged coaxially with the transmission shaft 61, so that the balance of the runner 2 is ensured, and the stability of the runner 2 during operation is improved. Use the screw with 1 spacing mode that sets up between nut and transmission shaft 61 of rim plate for rim plate 1 can be stable keep at the mounted position, improve the life-span of rim plate 1, avoid heavier clothing to down push the impeller, make runner 2 mesh with the impeller in advance, lead to rim plate 1 to damage when influencing the washing effect. The setting of axle sleeve 8 has reduced frictional force between screw and the rim plate 1 for no matter be rim plate 1 or runner 2 homoenergetic realize high-speed the rotation, improved the life of rim plate 1.

It should be noted that the above-mentioned embodiments are only used for illustrating the principle of the present invention, and are not intended to limit the protection scope of the present invention, and those skilled in the art can make any form of modification to the structure of the present invention so that the present invention can be applied to more specific application scenarios without departing from the principle of the present invention.

For example, in an alternative embodiment, the transmission shaft 61 of the driving device 6 may be provided with a non-circular cross section, such as a square, triangle, oval, etc., so that the first transmission structure 212 and the second transmission structure 62 may be omitted, and the purpose of enabling the runner 2 to move up and down relative to the transmission shaft 61 while rotating synchronously with the transmission shaft 61 is achieved.

For another example, in another alternative embodiment, the first transmission structure 212 and the second transmission structure 62 may be in any other form as long as the form can satisfy the condition that the wheel 2 can rotate synchronously with the transmission shaft 61 and move up and down relative to the transmission shaft 61. For example, the first drive structure 212 may also be an internal spline or protrusion, and correspondingly the second drive structure 62 may be an external spline or keyway, or the like.

For another example, in another alternative embodiment, the buoyancy unit 22 may be disposed at any position of the pipe body 21, except for the installation groove disposed at the top of the pipe body 21, as long as the installation mode enables the runner 2 to float up and down. For example, the buoyancy unit 22 may be disposed at the lower portion of the pipe body 21, in the spiral rib, or the like.

As yet another example, in another alternative embodiment, the water lifting structure 23 may take other forms so long as the structure is capable of creating an Archimedes spiral-like structure or working chamber. Such as a plurality of screw blades, etc. provided on the outer wall of the pipe body 21 in the radial direction of the pipe body 21. In addition, the parameters (such as the setting length, the thread pitch, the number and the like) of the spiral ribs can be correspondingly adjusted according to specific application scenes, so that a good water flow lifting effect can be obtained.

As another example, in another alternative embodiment, the first and second engaging structures 13 may be provided in any form as long as the form enables the runner 2 to smoothly engage with and rotate together with the disc 1. For example, the first engagement structure may be a protrusion, the second engagement structure 13 correspondingly a recess, and both the protrusion and the recess are provided with guiding ramps to make the bonding process smoother.

For another example, in another alternative embodiment, the through hole of the wheel disc 1 may of course be provided without the bushing 8, or replaced by another part, as long as the swivel member can significantly reduce the friction between the wheel disc 1 and the screw. For example, as shown in fig. 3, fig. 3 is a schematic structural view of a wave wheel assembly in a second embodiment of the present invention. In the embodiment shown in fig. 3, on the basis of the preferred embodiment, the shaft sleeve 8 may be replaced with a rotating member such as a bearing 9, for example, a roller bearing, a thrust bearing, etc., an inner ring of the bearing 9 is in interference fit with a screw, and an outer ring of the bearing 9 is in interference fit with a through hole, so that the effects of reducing the friction force between the wheel disc 1 and the screw and prolonging the service life of the wheel disc 1 may be achieved, and the effect of reducing the friction force is better compared with the shaft sleeve by using the bearing 9.

For another example, in another alternative embodiment, the wheel disc 1 may be fixed between the screw and the top surface of the transmission shaft 61, and may also be sleeved on the transmission shaft 61 through the bushing 8, and this functional manner requires that the transmission shaft 61 is provided with a limit structure to prevent the wheel disc 1 from moving along the axial direction of the transmission shaft 61.

For another example, in another alternative embodiment, the limiting member 7 may be any other component capable of limiting, besides a screw. Such as pins or rivets, etc.

For another example, in another alternative embodiment, the containing cavity may be further configured such that the radial cross section gradually decreases along the water flow direction, that is, the upper part is smaller than the lower part, so that the cavity gradually narrows and the pressure gradually increases during the process that the washing water is pushed upwards by the spiral rib, thereby ensuring the pressure and the spraying effect of the water jet and improving the competitiveness of the product.

Of course, the above alternative embodiments, and the alternative embodiments and the preferred embodiments may be cross-combined to form a new technical solution, and such a technical solution of cross-combination of functions obviously also falls into the protection scope of the present invention. For example, in the preferred embodiment, the radial cross-sectional area of the housing chamber is set to be small at the top and large at the bottom, and the shaft sleeve 8 is replaced with the bearing 9, thereby combining a new embodiment.

Finally, it should be noted that although not described, the pulsator assembly of the present invention may be used in combination with a pulsator or a pulsator with a small pulsator having a structure improved in the related art, to simultaneously achieve the purpose of sufficiently dissolving detergent and water and further enhancing the washing effect.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims

1. A wave wheel component is characterized by comprising a wheel disc and a rotating wheel arranged below the wheel disc, wherein the center of the wheel disc is provided with a through hole, a jet hole is arranged around the through hole, a rotating part is arranged in the through hole, the wheel disc is connected with a transmission shaft of a driving device through the rotating part and can freely rotate relative to the transmission shaft,

the rotating wheel comprises a tube body and a water lifting structure arranged on the outer wall of the tube body, the tube body can synchronously rotate with the transmission shaft and can move along the axial direction of the transmission shaft, the water lifting structure is arranged in such a way that when the rotating wheel rotates, water below the rotating wheel rises along the axial direction of the tube body and is ejected from the ejection hole,

the runner still includes buoyancy unit, be provided with first engagement structure on the body, be provided with second engagement structure correspondingly on the rim plate, work as buoyancy unit drives under the effect of buoyancy when the runner rebound, first engagement structure with the engagement of second engagement structure, thereby the transmission shaft drives the rim plate with the runner rotates jointly.

2. The pulsator assembly according to claim 1, wherein a mounting groove is provided on the tube body, and the buoyancy unit is mounted in the mounting groove.

3. The pulsator assembly according to claim 2, wherein the mounting groove is an annular structure, the annular structure being disposed coaxially with the driving shaft; and/or the buoyancy unit is a buoyancy chamber with a hollow structure.

4. The pulsator assembly according to claim 1, wherein the water lifting structure is a plurality of propeller blades provided to an outer wall of the tube in a radial direction of the tube; or

The water lifting structure is at least one spiral rib wound on the outer wall of the pipe body along the axial direction of the pipe body.

5. The impeller assembly of claim 4, wherein an annular reinforcing rib extends downwards from the middle of the lower surface of the wheel disc, the reinforcing rib and the lower surface of the wheel disc are surrounded to form an accommodating cavity, and the outer edge of the water lifting structure is matched with the inner wall of the accommodating cavity.

6. The assembly according to claim 1, wherein the inner wall of the tube body is provided with a first transmission structure, the transmission shaft is correspondingly provided with a second transmission structure capable of being abutted with the first transmission structure, and the tube body is synchronously rotated with the transmission shaft through the abutment of the first transmission structure and the second transmission structure.

7. The pulsator assembly of claim 6, wherein the first driving structure is an internal spline, a key groove or a protrusion, and the second driving structure is an external spline, a protrusion or a key groove, respectively; and/or

The first engaging structure is a protrusion/groove arranged at the top of the pipe body, and the second engaging structure is a groove/protrusion correspondingly arranged on the lower surface of the wheel disc.

8. The pulsator assembly according to claim 1, wherein the rotating member is a bearing, an outer race of the bearing is fittingly coupled to the through hole, and an inner race of the bearing is coupled to the driving shaft.

9. The pulsator assembly according to claim 8, wherein the driving shaft has a coupling hole formed at an end surface thereof, the coupling hole allowing the stopper to be coupled thereto, and after the coupling, the inner race of the bearing is interposed between the stopper and the end surface of the driving shaft.

10. A laundry treating apparatus comprising a casing and a washing tub provided in the casing, characterized in that the pulsator assembly of any one of claims 1 to 9 is provided in the washing tub.