CN110306322B

CN110306322B - Impeller assembly

Info

Publication number: CN110306322B
Application number: CN201810259276.XA
Authority: CN
Inventors: 赵志强; 吕佩师; 许升
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: 2018-03-27
Filing date: 2018-03-27
Publication date: 2022-08-19
Anticipated expiration: 2038-03-27
Also published as: CN110306322A

Abstract

The invention relates to the technical field of clothes treatment, in particular to a pulsator assembly. The invention aims to solve the problem that the existing impeller of the washing machine cannot improve the dissolving effect of a detergent in water. For the purpose, the impeller assembly comprises a first wheel disc and a rotating wheel arranged above the first wheel disc, wherein a through hole is formed in the center of the first wheel disc, the first wheel disc is sleeved on a transmission shaft of a driving device in a vertically sliding mode through the through hole, the rotating wheel is provided with a shaft hole, and the rotating wheel is connected with the transmission shaft through the shaft hole; first rim plate still is provided with buoyancy unit and first engagement structure, is provided with second engagement structure on transmission shaft and/or the runner correspondingly, and when first rim plate rebound under the effect of buoyancy, first engagement structure and second engagement structure meshing to first rim plate can rotate under the drive of transmission shaft. Through the arrangement mode, the detergent dissolving device can obviously improve the dissolving effect of the detergent and water, so that the cleanliness is improved.

Description

Impeller assembly

Technical Field

The invention relates to the technical field of clothes treatment, in particular to an impeller assembly.

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 washing mode has the problems of single water flow, low cleaning degree and the like in the actual washing process, 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. The utility model discloses a utility model patent application as publication number CN2623735Y discloses a "can produce washing machine impeller of additional rivers", this washing machine impeller include the ripples dish, stir protruding muscle on the water, stir protruding muscle under the water, the ripples dish center has the spline shaft hole, stir protruding muscle on the water and stir protruding muscle under the water and distribute in the upper and lower two surfaces of ripples dish along radial direction respectively, mould plastics as an organic wholely with the ripples dish, the surface mounting of ripples dish has sub-impeller. The impeller of the washing machine achieves the purposes of improving the water flow effect and improving the clothes cleaning degree in a mode of installing the sub-impeller on the surface of the impeller disc to generate additional water flow. Although the above-described technical means solves the problems of a single water flow and low cleaning efficiency to some extent, the following problems are unavoidable. The main performance is that 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 problems in the prior art, namely to solve the problem that the existing impeller of the washing machine cannot improve the dissolving effect of a detergent in water, the invention provides an impeller assembly, which comprises a first wheel disc and a rotating wheel arranged above the first wheel disc, wherein the center of the first wheel disc is provided with a through hole, the first wheel disc is sleeved on a transmission shaft of a driving device in a vertically sliding manner through the through hole, the rotating wheel is provided with a shaft hole, and the rotating wheel is connected with the transmission shaft through the shaft hole; the first wheel disc is further provided with a buoyancy unit and a first meshing structure, the transmission shaft and/or the rotating wheel are/is correspondingly provided with a second meshing structure, and when the first wheel disc moves upwards under the action of buoyancy, the first meshing structure is meshed with the second meshing structure, so that the first wheel disc can rotate under the driving of the transmission shaft.

In a preferred embodiment of the above-described wave wheel assembly, the lower surface of the first disk is provided with an installation groove, and the buoyancy unit is fitted into 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 technical solution of the above-mentioned wave wheel assembly, the first engagement structure is an internal spline or a groove; the second engagement structure is correspondingly an external spline or a protrusion.

In a preferred embodiment of the above described wave wheel assembly, the first engagement structure and/or the second engagement structure is provided with a guide surface.

In a preferred technical solution of the above-mentioned wave wheel assembly, the rotating wheel is provided with a plurality of first water outlet holes, the center of the lower surface of the rotating wheel extends downward to form the shaft hole, the outer wall of the shaft hole is provided with a water lifting structure, and the water lifting structure is configured such that when the rotating wheel rotates, the washing water below the rotating wheel rises along the axial direction of the shaft hole and is ejected from the first water outlet holes.

In a preferred technical solution of the above-mentioned wave wheel assembly, the rotating wheel is formed with a convex portion upward, the convex portion is formed with a cavity, the plurality of first water outlet holes are opened on the convex portion, and the shaft hole is formed by extending downward from the center of the lower surface of the convex portion.

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

In a preferred technical solution of the above-mentioned wave wheel assembly, the area of the cross section of the convex portion gradually decreases along a direction from bottom to top; and/or the outer edge of the propeller blade/flight is connected to the lower surface of the boss.

In a preferred technical solution of the above-mentioned wave wheel assembly, the rotating wheel includes a second wheel disc, an upper surface of the second wheel disc is provided with a plurality of second water-stirring vanes, and a lower surface of the second wheel disc is provided with the shaft hole.

As can be understood by those skilled in the art, in a preferred technical solution of the present invention, the pulsator assembly includes a first wheel disc and a rotating wheel disposed above the first wheel disc, a through hole is disposed in the center of the first wheel disc, the first wheel disc is slidably sleeved on a transmission shaft of the driving device up and down through the through hole, the rotating wheel is provided with a shaft hole, and the rotating wheel is connected with the transmission shaft through the shaft hole; first rim plate still is provided with buoyancy unit and first engagement structure, is provided with second engagement structure on transmission shaft and/or the runner correspondingly, and when first rim plate rebound under the effect of buoyancy, first engagement structure and second engagement structure meshing to first rim plate can rotate under the drive of transmission shaft.

Through the arrangement mode, the impeller assembly can obviously improve the dissolving effect of detergent and water, and improve the washing effect and the cleaning degree. Particularly, when the water level is low and the buoyancy is insufficient, the first wheel disc 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, and the rotating wheel is small in size, so that the rotating wheel can rotate at high speed to drive detergent in the washing barrel and water to rotate at high speed to generate vortex, 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, under the action of the buoyancy unit, the first wheel disc is in butt joint with the transmission shaft through the meshing of the first meshing structure and the second meshing structure, then the transmission shaft drives the first wheel disc and the rotating wheel to rotate together, and the clothes are repeatedly washed by using the washing water which is fully dissolved, so that the cleanliness in the washing process is 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 buoyancy unit on the first wheel disc and arranging the rotating wheel above the first wheel disc, thereby greatly improving the washing degree of clothes.

Drawings

The pulsator assembly 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 assembly according to the present invention;

FIG. 2 is a top view of the pulsator assembly of the present invention;

FIG. 3 is a schematic view of the operation of the pulsator assembly, illustrating the position of the pulsator assembly at a low water level;

FIG. 4 is a schematic view illustrating the operation of the pulsator assembly, showing the position of the pulsator assembly at a high water level;

fig. 5 is a schematic structural view of the pulsator washing machine of the present invention.

List of reference numerals

1. A first wheel disc; 11. a through hole; 12. a first engagement structure; 14. a water inlet; 15. a first water-repelling leaf; 16. rubbing ribs; 17. a second water outlet; 18. water-repellent ribs; 2. a rotating wheel; 21. a shaft hole; 22. a first water outlet; 23. a water lifting structure; 24. a boss portion; 3. a buoyancy unit; 4. a housing; 5. a washing tub; 6. a drive device; 61. a drive shaft; 62. a second engagement structure.

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 first wheel has four first paddles, this numerical relationship is not constant and can be adjusted as needed by one skilled in the art to suit a particular application. For example, three or five first water-repellent blades may be arranged on the first wheel disc to improve the washing effect in different application scenes.

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.

First, referring to fig. 1 to 4, the pulsator assembly of the present invention will be explained. Wherein, fig. 1 is a schematic structural view of the pulsator assembly of the present invention; FIG. 2 is a top view of the pulsator assembly according to the present invention; FIG. 3 is a schematic view of the operation of the pulsator assembly, illustrating the position of the pulsator assembly at a low water level; fig. 4 is a schematic view illustrating an operation process of the pulsator assembly, which shows a position of the pulsator assembly at a high water level.

As shown in fig. 1 to 3, in order to solve the problem that the conventional pulsator for washing machines cannot improve the dissolving effect of a detergent in water, the pulsator assembly of the present invention mainly includes a first wheel 1 and a rotating wheel 2 disposed above the first wheel 1. The upper surface (that is, the surface shown in fig. 1) of the first wheel disc 1 is provided with a plurality of first water stirring vanes 15, a plurality of friction ribs 16 and a plurality of second water outlet holes 17 are arranged between every two first water stirring vanes 15, and the lower surface of the first wheel disc 1 is provided with a plurality of annular reinforcing ribs (not shown in the figure) and a plurality of linear water stirring ribs 18. The center of the first wheel disc 1 is provided with a through hole 11, a plurality of water inlets 14 are arranged around the through hole 11, and the first wheel disc 1 is sleeved on a transmission shaft 61 of a driving device (such as a driving motor) in a manner of sliding up and down through the through hole 11. First rim plate 1 still is provided with buoyancy unit 3 and first engagement structure 12, and transmission shaft 61 is provided with second engagement structure 62 correspondingly, and when first rim plate 1 moved upwards under the effect of buoyancy, first engagement structure 12 meshed with second engagement structure 62 to first rim plate 1 can rotate under the drive of transmission shaft 61. Referring to fig. 1 and 3, the diameter of the rotating wheel 2 is far smaller than that of the first wheel disc 1, a protruding portion 24 is formed upwards on the rotating wheel 2, a cavity is formed on the protruding portion 24, a plurality of first water outlet holes 22 are formed in the protruding portion 24, a shaft hole 21 is formed in the center of the lower surface of the protruding portion 24, and the rotating wheel 2 is connected with a transmission shaft 61 of the driving device through the shaft hole 21. The outer wall of the shaft hole 21 is further provided with a water lifting structure 23, and the water lifting structure 23 is configured such that when the rotating wheel 2 rotates, the washing water below the rotating wheel 2 rises along the axial direction of the shaft hole 21 and is ejected from the first water outlet hole 22.

The first wheel disc 1 is arranged on the transmission shaft 61 in a vertically sliding manner, and the water lifting structure 23 can enable the washing water below the rotating wheel 2 to ascend along the axial direction of the shaft hole 21 and be sprayed out from the first water outlet hole 22, and the impeller assembly can obviously improve the dissolving effect of the washing agent and the water in a mode that the transmission shaft 61 drives the rotating wheel 2 to rotate at a high speed and spray water when the first wheel disc 1 is not meshed with the transmission shaft 61, so that the washing effect in the washing process is improved after the first wheel disc 1 is combined with the transmission shaft 61. In other words, the invention solves the problem that the prior washing machine impeller can not improve the dissolving effect of the detergent in water, and effectively improves the dissolving effect of the detergent and the water, thereby improving the washing effect and being suitable for large-scale popularization.

Further refer to fig. 1, first rim plate 1 is the bowl form, and the central authorities of bowl form are provided with through-hole 11, have seted up recessed circular platform around through-hole 11, are provided with two rings of water inlets 14 around through-hole 11 in the circular platform, and every water inlet 14 of outer lane is oval water inlet, and every water inlet 14 of inner circle is the arc water inlet. The upper surface of first rim plate 1 is provided with four first water wing 15, and every first water wing 15 extends to the upper surface outer fringe of first rim plate 1 along the radial outer fringe of first rim plate 1 by circular platform. Five friction ribs 16 are arranged between every two first water stirring blades 15, each friction rib 16 is arranged along the radial direction of the first wheel disc 1, and a plurality of second water outlet holes 17 are arranged between every two friction ribs 16 and between the adjacent friction ribs 16 and the first water stirring blades 15.

Referring to figures 3 and 4, in one possible embodiment, the lower surface of the first disc 1 is provided with an annular mounting groove (not shown in the figures, i.e. the location in figure 3 where the buoyancy units 3 are mounted) which is arranged coaxially with the first disc 1 and into which the buoyancy units 3 are embedded. First engagement structure 12 is a plurality of recesses that set up around through-hole 11 on the upper surface of first rim plate 1, and what second engagement structure 62 corresponds is a plurality of archs that set up on the transmission shaft 61 outer wall, through protruding mode of embedding recess, realizes the butt joint of first rim plate 1 and transmission shaft 61 and the power transmission between drive arrangement and the first rim plate 1.

It should be noted that, in the present invention, the specific form of the buoyancy unit 3 is not exclusive, and the application may be slightly different from the arrangement manner on different products, as long as it is sufficient that the first wheel disc 1 can float or sink under the action of buoyancy after being arranged on the first wheel disc 1. For example, the buoyancy unit 3 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/cm ³ Preferably 0.1 to 0.7g/cm ³ . For another example, the buoyancy unit 3 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 3 may also be a buoyancy chamber having a hollow structure, such as hollow glass, plastic, aerogel, etc.

Referring to fig. 2 and 3, in one possible embodiment, the raised portion 24 of the wheel 2 is formed convexly from bottom to top (in the orientation shown in fig. 3), and the cross-sectional area of the raised portion 24 gradually decreases from bottom to top. Be provided with a plurality of first apopores 22 on the bellying 24, the lower surface central authorities of bellying 24 have seted up shaft hole 21 (like key hole or screw hole) downwards, and runner 2 passes through shaft hole 21 and is connected with transmission shaft 61. The water lifting structure 23 is a spiral rib wound on the outer wall of the shaft hole 21 along the axial direction of the shaft hole 21, the outer edge of the spiral rib extends to the lower surface of the boss 24 and is connected with the lower surface of the boss 24, and then the chambers of the spiral rib, the shaft hole 21 and the boss 24 jointly form an Archimedes spiral pipe. Preferably, the boss 24, the shaft hole 21 and the spiral rib are integrally formed (e.g., the first wheel disc is integrally formed). Of course, the protrusion 24, the shaft hole 21 and the spiral rib may be formed separately or partially integrally.

The operation of a pulsator washing machine to which the pulsator assembly of the present invention is applied will be described with reference to fig. 3 and 4 in conjunction with fig. 1.

As shown in fig. 3, when the washing tub is just filled with water and the water level is low, due to insufficient buoyancy, the first wheel disc 1 is kept at the bottom of the washing tub under the action of gravity or suspended in the washing water without being meshed with the transmission shaft 61 and the first wheel disc 1, the groove on the first wheel disc 1 is separated from the protrusion on the transmission shaft 61, the transmission shaft 61 of the driving device only drives the runner 2 to rotate, and due to the small volume of the runner 2, the runner 2 can rotate at high speed to drive the detergent in the washing tub to rotate at high speed and be quickly mixed with the water. Meanwhile, in the rotating process of the rotating wheel 2, the washing water enters the protruding portion 24 of the rotating wheel 2, when the rotating wheel 2 rotates for one circle, the spiral rib inside the cavity also rotates for one 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 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 flows along the axial direction of the shaft hole 21, finally the washing water passes through the first water outlet hole 22 to form strong high-pressure jet water flow to be upwards jetted, the jet height can easily reach the washing barrel cover, and the washing water is uniformly scattered on clothes after falling.

As shown in fig. 4, as the water is continuously filled into the washing tub, the water level rises, the buoyancy increases, and under the action of the buoyancy unit 3, the first wheel disc 1 moves upwards and is in butt joint with the transmission shaft 61 through the meshing of the first meshing structure 12 and the second meshing structure 62, and the transmission shaft 61 can reduce the rotation speed and drive the first wheel disc 1 and the rotating wheel 2 to rotate together at the moment because the diameter of the first wheel disc 1 is larger. In the rotating process, the first water stirring blade 15 drives the washing water above the first wheel disc 1 to generate vortex, the friction rib 16 carries out friction washing on the clothes, the water stirring rib 18 drives a part of washing water below the first wheel disc 1 to be thrown outwards under the action of the water stirring rib 18, and the other part of washing water is sprayed out above the first wheel disc 1 through the plurality of second water outlet holes 17 so as to reduce the friction degree between the clothes and the first water stirring blade 15 and the friction rib 16. Meanwhile, the washing water passes through the first wheel disc 1 through the water inlets 14 and enters the protruding portion 24 of the rotating wheel 2, the rotating wheel 2 rotates freely under the combined action of the impeller and the rotating water flow, each time the rotating wheel rotates for a circle, the spiral ribs in the chamber also rotate for a circle, the washing water below the rotating wheel 2 is driven by the spiral ribs to be sucked into the Archimedes spiral tube, the washing water in the spiral tube is upwards pushed into one or more screw pitches by the spiral ribs, along with the high-speed rotation of the spiral ribs, the washing water in the chamber is rapidly pressurized and flows upwards along the axial direction of the shaft hole 21, finally the washing water passes through the first water outlet 22 to form strong high-pressure jet water flow to be upwards jetted, and the strong water flow supports and keeps the clothes suspended and simultaneously sprays and brushes the clothes.

It should be noted that the low water level mentioned above refers to the water level when the groove of the first wheel 1 is not engaged with the projection on the transmission shaft 61, and it may be the water level when the first wheel 1 is not floated at all or the water level when the first wheel is floated to just not engaged. Accordingly, a high water level refers to any water level that corresponds to the engagement of the recesses of the first wheel 1 with the protrusions on the drive shaft 61. 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 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 3, and the specific values thereof can be completely obtained based on laboratory experimental data and will not be described herein again.

As can be seen from the above description, according to the invention, by the innovative arrangement mode that the rotating wheel 2 is arranged above the first wheel disc 1, the buoyancy unit 3 is arranged on the lower surface of the first wheel disc 1, and the first wheel disc 1 is sleeved on the transmission shaft 61 in a manner of sliding up and down, the rotating wheel 2 can be driven by the driving device to rotate at high speed when the water level is low, so that the efficient mixing and dissolving of the detergent and the water can be realized, and the utilization rate of the detergent can be improved; when the water level is high, the driving device can simultaneously drive the first wheel disc 1 and the rotating wheel 2 to rotate, so that the first wheel disc 1 and the rotating wheel 2 drive the washing water which is fully dissolved to repeatedly wash clothes, and the cleanliness in the washing process is greatly improved. The chamber that spiral muscle, shaft hole 21 and bellying 24 formed forms the mode of setting up of Archimedes spiral pipe, when runner 2 operates, can form powerful jet stream and hold up the clothing and spout the brush to the clothing, and this kind of ingenious mode of setting has not only strengthened the injection effect of rivers, realizes the even scattering of detergent on the clothing, has further improved the clean degree of clothing, can also avoid the winding between the clothing, reduces the impeller to the degree of wear of clothing, effectively care the clothing. The cross sectional area of the bulge 24 is gradually reduced along the forming direction of the bulge 24 (namely, the upper part is small and the lower part is large), so that the washing water is gradually narrowed by the chamber in the process of upwards propelling the spiral rib, the pressure is gradually increased, the pressure and the spraying effect of the water jet are ensured, and the competitiveness of the product is improved. The mounting groove is annular and with the mode of first rim plate 1 coaxial setting, then has guaranteed the balance of buoyancy unit 3 on first rim plate 1, has improved the stability of first rim plate 1 during operation.

Of course, the above-described embodiments are merely illustrative of the principles of the present invention and are not intended to limit the scope of the invention, which is not to be limited thereby, and those skilled in the art can make modifications to the structure of the present invention without departing from the principles of the present invention in any way so that the invention is capable of being applied to more specific applications. For example, the first wheel disc 1 may not have a recessed circular land in the center; for another example, the structure of the water lifting structure 23 may be in other forms as long as the structure can generate a structure or a working chamber similar to an archimedes spiral pipe, such as a propeller blade arranged on the outer wall of the shaft hole 21 and connected with the shaft hole 21 and the boss 24 respectively to form a spraying channel; as another example, the first wheel disc 1 may also be shaped like a disc or in another way; as another example, the first engagement structure 12 and the second engagement structure 62 may also be internal and external splines or other combinations of splines and keys. For another example, the number of the grooves and the number of the protrusions may be different, as long as it is ensured that the number of the grooves is not less than the number of the protrusions, for example, four or five protrusions are arranged on the transmission shaft 61, and a circle of ten or even twenty grooves matched with the protrusions are arranged on the first wheel disc 1, so as to ensure the smoothness of the engagement. For another example, the protrusion and the groove may be provided with a guide slope or a guide curved surface, respectively, to further increase the smoothness of the engagement process. For another example, parameters (such as a set length, a thread pitch, and the like) of the spiral rib can be correspondingly adjusted according to a specific application scene, so that a good water flow lifting effect can be obtained; for another example, the quantity and the setting form of the water inlet 14, the first water-repelling leaf 15, the friction rib 16, the first water outlet 22, the second water outlet 17, the water-repelling rib 18 and the reinforcing rib are all unlimited, as long as the quantity and the setting form can be favorable to improving both the washing effect and the spraying effect. For another example, the rotating wheel 2 can be sleeved on the transmission shaft 61 of the driving device in a manner of engaging with the internal and external splines or the protrusions/grooves, even the shaft hole 21 can be set to be the through hole 11 and the rotating wheel 2 can slide up and down relative to the transmission shaft 61, so long as it is ensured that the rotating wheel 2 is engaged with the transmission shaft 61 and does not slide out of the transmission shaft 61 all the time, for example, by providing a corresponding upper and lower limiting structure on the transmission shaft 61. For another example, the rotating wheel 2 may also be a small impeller (refer to a common impeller), that is, the rotating wheel 2 includes a second wheel disc, the second wheel disc may be provided with a plurality of second water-repellent blades, and the lower surface of the second wheel disc is provided with a shaft hole connected to the transmission shaft 61, so as to improve the dissolving effect of the detergent and the water.

For another example, the second engaging structure 62 may be disposed on the rotating wheel 2 in addition to the transmission shaft 61, for example, in the form of a protrusion, a groove, or an internal and external spline, and disposed at the bottom of the rotating wheel 2 or outside the shaft hole 21, at this time, the upper surface of the first wheel disc 1 is correspondingly provided with a groove, a protrusion, or an internal and external spline, so that power transmission between the transmission shaft 61 and the first wheel disc 1 can also be achieved. Of course, the second engagement structure 62 may also be provided with a portion on each of the transmission shaft 61 and the turning wheel 2 to increase the stability of the transmission shaft 61 engaging with the first sheave 1.

It should also be noted that, although not described, the pulsator assembly of the present invention may be obviously used in combination with a pulsator or a pulsator with a small pulsator having a structure improved in the related art, to simultaneously achieve sufficient dissolution of detergent and water and a great improvement in washing effect.

In addition, besides the above-mentioned application of the pulsator assembly to two different water level stages of a washing process, the present invention can also be applied to other scenes, such as application of the pulsator assembly to different washing modes: when the clothes are washed less or the clothes are washed more valuable, the clothes can be gently washed by only using the rotating wheel 2 in a low water level operation mode, so that the abrasion of the first wheel disc 1 to the clothes is reduced; when more clothes are available, the impeller assembly can be used for fully dissolving the detergent in the water according to the operation process in a high water level operation mode, and then the clothes are washed, so that the cleanliness of the clothes is improved.

The pulsator washing machine according to the present invention will be briefly described with reference to fig. 5. Wherein, fig. 5 is a schematic structural diagram of the pulsator washing machine of the present invention.

As shown in fig. 5, the present invention further provides a pulsator washing machine, which includes a casing 4, a washing tub 5 and a driving device 6 (such as a driving motor) are disposed in the casing 4, the aforementioned pulsator assembly is disposed in the washing tub 5, a first wheel disc 1 of the pulsator assembly is sleeved with a transmission shaft 61 of the driving device 6 through a through hole 11 in a vertically slidable manner, and a rotating wheel 2 is connected with the transmission shaft 61 of the driving device 6 through a shaft hole 21.

Finally, it should be noted that although the above preferred embodiment is described by taking a pulsator washing machine as an example, this is not intended to limit the protection scope of the present invention, and it will be appreciated by those skilled in the art that the present invention can also be applied to other clothes 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, etc., besides the pulsator washing machine.

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 assembly is characterized by comprising a first wheel disc and a rotating wheel arranged above the first wheel disc, wherein a through hole is formed in the center of the first wheel disc, the first wheel disc is sleeved on a transmission shaft of a driving device in a vertically sliding mode through the through hole, the rotating wheel is provided with a shaft hole, and the rotating wheel is connected with the transmission shaft through the shaft hole;

the first wheel disc is also provided with a buoyancy unit and a first meshing structure, the transmission shaft and/or the rotating wheel are/is correspondingly provided with a second meshing structure, and when the first wheel disc moves upwards under the action of buoyancy, the first meshing structure is meshed with the second meshing structure, so that the first wheel disc can be driven by the transmission shaft to rotate;

a plurality of first apopores have been seted up on the runner, the central authorities downwardly extending of the lower surface of runner have the shaft hole, the outer wall in shaft hole is provided with water lifting structure, water lifting structure sets to work as when the runner rotates the washing water of runner below is followed the axial in shaft hole rises and follows first apopore jets.

2. The pulsator assembly of claim 1, wherein a lower surface of the first disc is provided with a mounting groove, the buoyancy unit being inserted into the mounting groove.

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

4. The impeller assembly of claim 1, wherein the first engagement structure is an internal spline or groove; the second engagement structure is correspondingly an external spline or a protrusion.

5. The pulsator assembly of claim 4, wherein the first and/or second engagement structure is provided with a guide surface.

6. The pulsator assembly according to any one of claims 1 to 5, wherein the rotation wheel is upwardly formed with a protrusion part, the protrusion part is formed with a chamber, the plurality of first water outlet holes are opened in the protrusion part, and the shaft hole is formed by extending downward from a center of a lower surface of the protrusion part.

7. The pulsator assembly according to claim 6, wherein the water lifting structure is a plurality of propeller blades provided to an outer wall of the shaft hole in a radial direction of the shaft hole; or the water lifting structure is a spiral rib wound on the outer wall of the shaft hole along the axial direction of the shaft hole.

8. The pulsator assembly of claim 7, wherein the cross-sectional area of the protrusions is gradually reduced in a direction from bottom to top; and/or the outer edge of the propeller blade/flight is connected to the lower surface of the boss.

9. The pulsator assembly as claimed in any one of claims 1 to 5, wherein the rotation wheel comprises a second disc, an upper surface of the second disc being provided with a plurality of second water-repellent blades, and a lower surface of the second disc being provided with the shaft hole.