CN114934369B - Washing machine - Google Patents

Abstract

The application discloses a washing machine, comprising: a drum body formed with a laundry accommodating chamber for accommodating laundry to be washed; the first pulsator is horizontally arranged in the clothes accommodating cavity and can rotate along a first rotation center of the first pulsator; the driving piece is connected with the first pulsator to drive the first pulsator to rotate around a first rotation center; the second pulsator is rotatably connected with the first pulsator and is positioned on the top surface of the first pulsator, the second pulsator can rotate around a second rotation center of the second pulsator under the drive of the washed clothes, and the second rotation center is eccentrically arranged relative to the first rotation center. Therefore, when the driving piece drives the first pulsator to rotate, the second pulsator can simultaneously rotate around the first rotating center and the second rotating center, so that excessive overturning and entanglement of clothes are prevented, damage to the clothes caused by friction of the same clothes position all the time is prevented, and a uniform cleaning effect is generated.

Description

Washing machine

Technical Field

The application relates to the technical field of household appliances, in particular to a washing machine.

Background

The pulsator washing machine washes by means of overturning and friction of clothes in a drum, and the washing effect can be adjusted by controlling the rotating speed of the pulsator and the number and the height of the pulsator fan blades.

In order to turn over the laundry, to achieve uniform washing of the laundry, a higher pulsator speed is required. However, at higher rotational speeds, although the laundry tumbling capacity is improved and the washing capacity is improved, entanglement and laundry damage are increased.

Disclosure of Invention

The application provides a washing machine, which can prevent clothes from overturned and tangled, prevent the clothes from being damaged due to the same clothes position being rubbed all the time, and has uniform cleaning effect.

The washing machine includes: a drum body formed with a laundry accommodating chamber for accommodating laundry to be washed; the first pulsator is horizontally arranged in the clothes accommodating cavity and can rotate along a first rotation center of the first pulsator; the driving piece is connected with the first pulsator to drive the first pulsator to rotate around a first rotation center; the second pulsator is rotatably connected with the first pulsator and is positioned on the top surface of the first pulsator, the second pulsator can rotate around a second rotation center of the second pulsator under the drive of the washed clothes, and the second rotation center is eccentrically arranged relative to the first rotation center.

In some embodiments, the first pulsator is rotatable about a first axis of rotation passing through the first center of rotation, and the second pulsator is rotatable about a second axis of rotation passing through the second center of rotation, the first axis of rotation being at an angle to the second axis of rotation.

In some specific embodiments, the top surface of the first pulsator is convex to be in a cambered surface, and the second pulsator is attached to the cambered surface of the first pulsator.

In some specific embodiments, the number of the second pulsators is plural, and the plural second pulsators are disposed on the top surface of the first pulsator at intervals.

In some specific embodiments, the second rotation centers of the plurality of second pulsators are respectively the same as the first rotation centers in the horizontal direction, and the second rotation centers of the adjacent two second pulsators are the same in pitch.

In some embodiments, the diameter of the second pulsator is equal to or greater than one fifth of the diameter of the first pulsator, and the number of the second pulsators is equal to or less than four.

In some embodiments, the driving member comprises a driving shaft connected to the center of the first pulsator, and the driving shaft is used for driving the first pulsator to rotate along the first rotation center; the washing machine comprises a gasket, wherein the driving shaft penetrates through the gasket, and one side of the gasket is abutted against the first pulsator.

In some embodiments, the washing machine includes a connection shaft formed by a lower structure of the second pulsator protruding downward, the connection shaft being rotatably provided on the first pulsator; or the connecting shaft is formed by upwards protruding the upper structure of the first impeller, and the second impeller is rotatably arranged on the connecting shaft.

In some specific embodiments, the top surface of the first impeller is provided with a plurality of first fan blades in a protruding way, the top surface of the second impeller is provided with a plurality of second fan blades in a protruding way, and the first fan blades and the second fan blades are used for cleaning the washed clothes; wherein, the protruding height of first flabellum is greater than or equal to 40mm, and the width of first flabellum is greater than or equal to 10mm, and the protruding height of second flabellum is less than or equal to 25mm, and the width of second flabellum is greater than or equal to 30mm.

In some embodiments, the first center of rotation is spaced from the second center of rotation by greater than 20mm in the horizontal direction.

The application has at least the following beneficial effects: the washing machine provided by the application is provided with the first pulsator and the second pulsator, wherein a certain distance is reserved between the first rotation center of the first pulsator and the second rotation center of the second pulsator in the horizontal direction. Under this kind of setting mode, the driving piece drives first impeller rotation, and then makes the clothing upset of being washd, and the clothing of being washd drives the second impeller and rotates along the second center of rotation. Therefore, the second pulsator can rotate around the first rotating center and the second rotating center simultaneously, excessive overturning and entanglement of clothes can be prevented, clothes damage caused by friction of the same clothes position all the time is prevented, and a uniform cleaning effect is achieved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a coaxial pulsator provided by the present application.

Fig. 2 is a schematic diagram illustrating a structural separation of the coaxial pulsator in fig. 1.

Fig. 3 is a schematic view of the movement state of the coaxial pulsator in fig. 1.

Fig. 4 is a schematic view of a structure of a washing machine according to the present application.

Fig. 5 is a schematic diagram illustrating a structural separation of the first pulsator, the second pulsator, and the driving member in fig. 4.

Fig. 6 is a schematic diagram illustrating movement states of a first pulsator and a second pulsator of the washing machine of fig. 4.

Fig. 7 is a schematic structural view of a first pulsator of the washing machine of fig. 4.

Fig. 8 is a schematic structural diagram of a washing machine according to another embodiment of the present application.

Fig. 9 is an enlarged schematic view of the structure of the driving member and the washer in fig. 5.

Fig. 10 is an enlarged schematic view of the structure of the second pulsator in fig. 5.

Fig. 11 is a schematic structural view of another embodiment of the second pulsator.

Reference numerals illustrate: 10. a coaxial pulsator; 11. a wave wheel is arranged; 12. a lower pulsator; 13. a driving structure; 14. a cylinder; q, clothes accommodating cavity; s1, a first direction; s2, a second direction; 20. a washing machine; 21. a first pulsator; 211. a first rotation center; 212. a cambered surface; 213. a mounting groove; 214. a connecting shaft; 215. a connecting piece; 216. a first fan blade; 22. a second pulsator; 221. a second rotation center; 222. a second fan blade; 223. a third fan blade; 224. a fourth fan blade; 23. a driving member; 231. a drive shaft; d1, the rotation direction of the impeller; d2, the rotation direction of the clothes; d3, turning over the clothes; m1, a first axis of rotation; m2, a second axis of rotation; 24. and a gasket.

Detailed Description

The application is described in further detail below with reference to the drawings and examples. It is specifically noted that the following examples are only for illustrating the present application, but do not limit the scope of the present application. Likewise, the following examples are only some, but not all, of the examples of the present application, and all other examples, which a person of ordinary skill in the art would obtain without making any inventive effort, are within the scope of the present application.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Fig. 1 is a schematic structural diagram of a coaxial pulsator 10 provided in the present application, fig. 2 is a schematic structural exploded view of the coaxial pulsator 10 in fig. 1, and fig. 3 is a schematic movement state of the coaxial pulsator 10 in fig. 1.

Referring to fig. 1 and 2, the coaxial pulsator 10 includes an upper pulsator 11, a lower pulsator 12, and a driving structure 13. The upper pulsator 11 is mounted on the lower pulsator 12, the upper pulsator 11 can rotate relative to the lower pulsator 12, and the lower pulsator 12 is fixedly connected with the driving structure 13.

The rotation axes of the upper pulsator 11 and the lower pulsator 12 are L, that is, the upper pulsator 11 and the lower pulsator 12 are coaxially disposed, and both the upper pulsator 11 and the lower pulsator 12 rotate along the same rotation axis L.

Referring to fig. 3, the washing machine includes a tub 14, and a laundry accommodation chamber Q in which the coaxial pulsator 10 is disposed is hollow in the tub 14. When the coaxial pulsator 10 operates to wash laundry in the laundry accommodating chamber Q, the driving structure 14 drives the lower pulsator 12 to rotate. The washed clothes are rotated to drive the upper pulsator 11 to move, so that the upper pulsator 11 performs auxiliary friction on the washed clothes.

Referring to fig. 3, when the coaxial pulsator 10 washes laundry, the laundry in the laundry accommodating chamber Q mainly moves in the first direction S1 and the second direction S2. The laundry rotates in the laundry accommodating chamber Q while the laundry moves in the first direction S1, and the laundry is turned over in the laundry accommodating chamber Q while the laundry moves in the second direction S2.

When the laundry is washed by the synchronous pulsator 10, the upper pulsator 11 performs auxiliary friction on the laundry, so that the washing effect on the laundry can be enhanced.

However, the lower pulsator 12 is driven to rotate synchronously by water and clothes during the movement, and the washing effect is very limited although the auxiliary friction effect can be achieved. In addition, when the rotation speed of the lower pulsator 12 is high, although the laundry turning ability is improved and the washing ability is improved, excessive turning of laundry may be caused, and entanglement and laundry damage may be increased. Further, the upper pulsator 11 and the lower pulsator 12 may rub the same laundry position, resulting in laundry damage.

Based on this, the present application also provides a washing machine 20 capable of preventing laundry from being overturned and tangled excessively, preventing laundry damage caused by always rubbing the same laundry position, and uniform cleaning effect.

Fig. 4 is a schematic structural diagram of a washing machine 20 according to the present application, fig. 5 is a schematic structural separation diagram of a structure formed by the first pulsator 21, the second pulsator 21, and the driving member 23 in fig. 4, and fig. 6 is a schematic movement state diagram of the first pulsator 21 and the second pulsator 22 of the washing machine 20 in fig. 4.

Referring to fig. 4 and 5, the washing machine 20 includes a tub 14, a first pulsator 21, a second pulsator 22, and a driving member 23. The first pulsator 21, the second pulsator 22, and the driving member 23 constitute a pulsator system of the washing machine 20, and the pulsator system is located in the tub 14.

Specifically, the drum 14 is formed with a laundry accommodating chamber Q for accommodating laundry, and the pulsator system described above is accommodated in the laundry accommodating chamber Q. The description of the drum 14 and the laundry accommodation chamber Q will be referred to above, and will not be repeated.

Specifically, the first pulsator 21 is horizontally disposed in the laundry accommodation chamber Q, and the first pulsator 21 is rotatable along its own first rotation center 211. The second pulsator 22 is rotatably connected with the first pulsator 21 and is located on the top surface of the first pulsator 21, and the second pulsator 22 can rotate around a second rotation center 221 of itself under the driving of the laundry.

More specifically, the first pulsator 21 may be circularly disposed, the cross section of the laundry accommodating chamber Q in the horizontal direction is also circularly disposed, and the outer diameter of the first pulsator 21 is smaller than the diameter of the laundry accommodating chamber Q, thereby enabling the first pulsator 21 to be horizontally disposed in the laundry accommodating chamber Q. The first pulsator 21 may be disposed at the bottom of the laundry accommodating chamber S and fixedly disposed on a rotation shaft, and drives the first pulsator 21 to rotate along its own first rotation center 211 when the rotation shaft rotates.

It should be understood that when the first pulsator 21 is disposed in a regular center-symmetrical structure, the first rotation center 211 may be a center-symmetrical center of the first pulsator 21. When the first pulsator 21 is not arranged in a regular central symmetrical structure, the first rotation center 211 may be a center of the first pulsator 21 or other preset rotation centers.

The second pulsator 22 may be similarly circularly disposed, and the second pulsator 22 may have a smaller diameter than the first pulsator 21, so that the second pulsator 22 may be disposed on the top surface of the first pulsator 21. The second pulsator 22 may be rotatably disposed on the top surface of the first pulsator 21 by means of a rotation shaft, a buckle, or the like.

When the second pulsator 22 is disposed on the top surface of the first pulsator 21, the top surface of the second pulsator 22 may be disposed to be protruded with respect to the top surface of the first pulsator 21, and the top surface of the second pulsator 22 may be flush with the top surface of the first pulsator 21. When the top surface of the second pulsator 22 is flush with the top surface of the first pulsator 21, a receiving groove may be formed on the upper portion of the first pulsator 21, and the second pulsator 22 may be rotatably disposed in the receiving groove, so as to achieve that the top surfaces of the first pulsator 21 and the second pulsator 22 are flush with each other.

In combination with the above, when the first pulsator 21 rotates, the laundry in the laundry accommodating chamber Q is driven to move, and the moving laundry rubs against the second pulsator 22, so as to drive the second pulsator 22 to rotate.

Specifically, the driving member 23 is connected to the first pulsator 21 to drive the first pulsator 21 to rotate about the first rotation center 211. The driving member 23 has a driving shaft 231, and the driving shaft 231 can rotate on its own axis. One end of the driving shaft 231 is fixedly connected with the first pulsator 21, and the driving shaft 231 drives the first pulsator 21 to rotate around the first rotation center when rotating around the axis of the driving shaft 231.

More specifically, the first pulsator 21 is provided with a mounting hole at the position of the first rotation center 211, and the driving shaft 231 may be disposed in the mounting hole, thereby achieving a fixed connection between the first pulsator 21 and the driving shaft 231.

In some embodiments, the driving member 23 is disposed below the first pulsator 21 and within the casing of the washing machine 20. At this time, the driving shaft of the driving member 23 is inserted into the laundry accommodation chamber Q to be connected with the first pulsator 21, and the remaining part of the driving member 23 is sealed to secure the stability of the operation of the driving member 23.

The driving part 23 may be provided as a driving motor connected to a controller of the washing machine 20, and thus controls the rotational speed of the driving motor and thus the rotational speed of the first pulsator 21 through the controller.

Wherein the second rotation center 221 is arranged eccentrically with respect to the first rotation center 211, i.e. the second rotation center 221 is arranged at a distance from the first rotation center 211 in the horizontal direction.

Referring to fig. 6, in this arrangement, when the first pulsator 21 rotates around the first rotation center 211, the second pulsator 22 is driven to synchronously rotate around the first rotation center, and the second pulsator 22 is driven by the laundry to simultaneously rotate around the second rotation center 221, and the rotation direction may be the pulsator rotation direction D1. That is, the second pulsator 22 rotates around the first rotation center 211 and rotates around the second rotation center 221 when operating, that is, the second pulsator 22 can perform both revolution type movement and rotation type movement.

In the above-mentioned rotation mode, the washed clothes will rotate along the clothes rotation direction D2 and turn over along the clothes turning direction D3 at the same time by the first pulsator 21 and the second pulsator 22, so as to realize the rotation washing and the turning washing of the clothes.

In combination with the above, since the second pulsator 22 simultaneously performs the revolution type and the rotation type motions, when the laundry is rotated and washed and turned over, the second pulsator 22 is continuously rubbed with the laundry at different positions, so that damage or entanglement of the laundry caused by rubbing the laundry at the same position can be avoided. In addition, as the clothes are continuously rubbed with clothes at different positions, the uniformity of washing the clothes can be improved, and the washing effect of the washed clothes is improved.

Referring further to fig. 6, in some embodiments, the first pulsator 21 can rotate around a first rotation axis M1 passing through the first rotation center 211, and the second pulsator 22 can rotate around a second rotation axis M2 passing through the second rotation center 221, and an angle is formed between the first rotation axis M1 and the second rotation axis M2.

The first rotation axis M1 is a rotation axis when the first pulsator 21 rotates, and the second rotation axis M2 is a rotation axis when the second pulsator 22 rotates. An included angle is formed between the first rotation axis M1 and the second rotation axis M2, that is, the first rotation axis M1 and the second rotation axis M2 are intersected.

Of course, in other embodiments, the first rotation axis M1 and the second rotation axis M2 may be disposed in parallel, as shown in fig. 6. By arranging the first rotation axis M1 in parallel with the second rotation axis M2, the second pulsator 22 is facilitated to be mounted.

Fig. 7 is a schematic structural view of the first pulsator 21 of the washing machine 20 of fig. 4.

In combination with the above arrangement mode that the first rotation axis M1 and the second rotation axis M2 have an included angle, in some specific embodiments, the top surface of the first pulsator 21 is protruded to form an arc surface 212, and the second pulsator 22 is disposed on the arc surface 212 of the first pulsator 21 in a fitting manner.

Specifically, the first pulsator 21 has a mounting side and a cleaning side, the cleaning side is a top surface side of the first pulsator 21, and the mounting side is a bottom surface side of the first pulsator 21. The mounting side is for mounting to the bottom of the tub 14 and the cleaning side is for cleaning the laundry. The top surface of the first pulsator 21 is provided with protrusions, i.e., protrusions on the cleaning side, so as to form a cambered surface 212.

In combination with the above, the cambered surface 212 may be provided with the mounting groove 213, and the second pulsator 22 is further mounted in the mounting groove 213, so as to ensure that the protruding height of the second pulsator 22 relative to the cambered surface 212 is smaller or is flush with the cambered surface 212.

In this embodiment, since the top surface of the first pulsator 21 is disposed in the arc surface 212, the first rotation axis M1 and the second rotation axis M2 are disposed in an intersecting manner, so that the second pulsator 22 can be better attached to the first pulsator. In addition, when the second pulsator 22 is directly attached to the arc surface 212 without providing the mounting groove 213, the first rotation axis M1 and the second rotation axis M2 are set to intersect each other, so that the second pulsator 22 is better attached to the first pulsator 21, and the second pulsator 22 can be prevented from affecting the washing of the laundry by the first pulsator 21.

Fig. 8 is a schematic structural diagram of the washing machine 20 according to another embodiment of the present application.

Specifically, the number of the second pulsators 22 is plural, and the plurality of second pulsators 22 are disposed on the top surface of the first pulsator 21 at intervals.

Specifically, the plurality means a number greater than one, the shapes and sizes of the plurality of second pulsators 22 may be the same, the shapes and sizes of the plurality of second pulsators 22 may be partially the same, or may be completely different, and may be set as required.

In some specific embodiments, the second pulsators 22 are all circular in shape and have the same size, and the plurality of second pulsators 22 are disposed on the top surface of the first pulsator 21 in the same manner. Of course, in other specific embodiments, when the shape and the size of the second pulsator 22 are different, the manner in which the second pulsator 22 is disposed on the first pulsator 21 may also be different.

More specifically, the second rotation centers 221 of the plurality of second pulsators 22 are respectively the same as the first rotation centers 211 in the horizontal direction in terms of the pitch, and the pitches between the second rotation centers 221 of the adjacent two second pulsators 22 are the same.

In combination with the above, the second rotation centers 221 of the plurality of second pulsators 22 are respectively the same as the first rotation centers 211 in the horizontal direction in pitch, that is, the plurality of second pulsators 22 are eccentrically arranged with respect to the first pulsator 21 to the same extent. At this time, if the first rotation center 211 is the center, the second rotation centers 221 of the plurality of second pulsators 22 are located on the same circular arc. When the distances between the second rotation centers 221 of two adjacent second pulsators 22 are the same, in combination with the embodiment that the eccentricity of the second pulsators 22 with respect to the first pulsator 21 is the same, that is, the second rotation centers 221 of the plurality of second pulsators 22 are disposed on the same circular arc, and the arc lengths of the distances between the two second rotation centers 221 are the same.

Through the above embodiment, the second pulsator 22 is regularly disposed on the top surface of the first pulsator 21, so that the arrangement of the second pulsator 22 is facilitated, and a predetermined cleaning effect is easily achieved by disassembling or adding the second pulsator 22.

More specifically, the diameter of the second pulsator 22 is equal to or larger than one fifth of the diameter of the first pulsator 11, and the number of the second pulsators 22 is equal to or smaller than four.

By setting the diameter of the second pulsator 22 to be equal to or larger than one fifth of the diameter of the first pulsator 21, the second pulsator 22 can exert a good friction effect on laundry when rotating. Correspondingly, the diameter of the second pulsator 22 needs to be smaller than the preset maximum diameter to prevent the second pulsator 22 from affecting the cleaning effect of the first pulsator 21. Similarly, the number of the second pulsators 22 is set to be less than or equal to four, so that the second pulsators 22 have a better friction effect on clothes, and further a better cleaning effect is obtained.

In other embodiments, in order to obtain a specific cleaning effect, the diameter of the second pulsator 22 may be set to exceed a preset maximum diameter, and the number of the second pulsators 22 may exceed four. Of course, in this embodiment, the orthographic projection of the second pulsator 22 is located within the range of the first pulsator 21, so as to ensure that the second pulsator 22 does not exceed the setting range of the first pulsator 21, and avoid affecting the setting and installation of other structures.

Further, only the second rotation centers 221 of the plurality of second pulsators 22 are shown in fig. 8 to be respectively the same as the first rotation centers 211 in the horizontal direction. In other embodiments, in order to enhance the effect of arranging the second pulsator 22, the interval between the second rotation center 221 and the first rotation center 211 of a part of the second pulsator 22 may be set to be the first interval, and the interval between adjacent two second rotation centers 221 in the part of the second pulsator 22 may be the same. The interval between the second rotation center 221 and the second rotation center 211 of the other part of the second pulsator 22 is set to be a second interval, and the first interval is different from the second interval. At this time, the intervals between the second rotation centers 221 of the other portions of the second pulsator 22 are the same.

Under this embodiment, the second pulsator 22 is arranged in a gradient manner in the horizontal direction of the first pulsator 21, so that the second pulsator 22 is uniformly arranged on the top surface of the first pulsator 21, and more comprehensive and uniform friction is realized on the clothes, so as to achieve a more uniform and clean cleaning effect.

Fig. 9 is an enlarged schematic view of the structure of the driving member 23 and the washer 24 in fig. 5.

Referring to fig. 5 and 9, the arrangement of the drive shaft 231 connected to the center of the first pulsator 21 is combined. At this time, the center of the first pulsator 21 may be a first rotation center 211 of the first pulsator, and the driving shaft is used to drive the first pulsator 21 to rotate along the first rotation center 211.

The washing machine 20 includes a gasket 24, and the gasket 24 is provided with through holes penetrating both sides of the gasket 24, through which a driving shaft 231 passes through the gasket 24 to be disposed in the gasket 24. At this time, one side of the washer 24 is in contact with the first pulsator 21, and the other side of the washer 24 is in contact with the driving shaft 231.

In particular, the gasket 24 may be manufactured from a flexible material, thereby providing the gasket 24 with a degree of flexibility. By the provision of the washer 24, friction between the second pulsator 22 and the driving member 23 can be reduced, thereby preventing abrasion damage between the second pulsator 22 and the driving member 23.

Referring to fig. 5, in some embodiments, the washing machine 20 includes a connection shaft 214, the connection shaft 214 is formed by upwardly protruding upper structures of the first pulsator 21, and the second pulsator 22 is rotatably disposed at the connection shaft 214.

Specifically, the connecting shaft 214 may be a circular shaft, and the second pulsator 22 is correspondingly provided with a mounting hole, and the connecting shaft 214 is mounted in the mounting hole, so as to realize that the second pulsator 22 is disposed on the connecting shaft 214. The connection shaft 214 can rotate in the mounting hole, and thus the second pulsator 22 can rotate with respect to the first pulsator 21. The mounting hole may be a blind hole, that is, the mounting hole does not penetrate the top surface of the second pulsator 22.

In combination with the embodiment that the first pulsator 21 is disposed on the driving shaft 231, the washing machine 20 further includes a connecting member 215, a connecting hole may be disposed at the position of the first rotation center 211 of the first pulsator 21, the connecting member 215 is fixedly disposed in the accommodating hole 215, and one side of the connecting member 215, which is close to the driving shaft 231, may be fixedly connected with the driving shaft 231, so that the connecting member 215 is driven by the driving shaft 231 to rotate the first pulsator 21.

In the above embodiment, the connection member 215 may be regarded as a fixing structure on the first pulsator 21, and in other embodiments, the connection member may be regarded as a fixing structure on the second pulsator 22. For example, the connection shaft is formed by a downward protrusion of the lower structure of the second pulsator 22, and the connection shaft is rotatably provided on the first pulsator. At this time, the second pulsator 22 is rotatable together with the connection shaft with respect to the first pulsator 21.

Fig. 10 is an enlarged schematic view of the structure of the second pulsator 22 in fig. 5, and fig. 11 is a schematic view of the structure of the second pulsator in another embodiment.

Referring to fig. 7, 10 and 11, specifically, a plurality of first blades 216 are disposed on a top surface of the first pulsator 21, a plurality of second blades 222 are disposed on a top surface of the second pulsator 22, and the first blades 216 and the second blades 222 are used for cleaning the laundry.

The length extending direction of the first fan blade 216 is a direction in which the first rotation center 211 of the first pulsator 21 faces the edge of the first pulsator 21. The first fan blade 216 may extend to the edge position of the first pulsator 21 through the first rotation center 211, and at this time, two ends of the first fan blade 216 are respectively disposed in contact with the edge positions of the first rotation center 211 and the first pulsator 21, and the length of the first fan blade 216 is longer. The two ends of the first fan blade 216 may be spaced from the first rotation center 211 and the edge of the first pulsator 21, and the length of the first fan blade 216 is shorter.

It should be appreciated that the first fan blade 216 is not disposed at a contact position of the first pulsator 21 and the second pulsator 22, so as to facilitate the installation of the second pulsator 22.

The arrangement of the second fan blade 222 of the second pulsator 22 may be partially referred to the arrangement of the first fan blade 216. Referring to fig. 11, in other embodiments, the second pulsator 22 is provided with a third fan blade 223, the third fan blade 223 is circularly disposed around the second rotation center 221, and a plurality of third fan blades 223 are arranged at intervals in the radial direction of the second pulsator 22. In this embodiment, the second pulsator 22 further includes a fourth fan 224, the fourth fan 224 is disposed along a direction from the second rotation center 221 to a position of an edge of the second pulsator 22, and the fourth fan 224 is disposed along a circumferential direction of the second pulsator 22. By the arrangement of the fourth fan blades 224, the washing effect of the second pulsator 22 on clothes can be enhanced.

For the heights of the first blade 216 and the second blade 222, in some embodiments, the height of the protrusion of the first blade 216 is 40mm or more, and the width of the first blade 216 is 10mm or more. The protruding height of the second fan blade 222 is less than or equal to 25mm, and the width of the second fan blade 222 is less than or equal to 30mm.

For example, the protruding height of the first fan blade 216 is set to 40mm, 45mm, 50mm, etc., and the width of the first fan blade 216 is set to 10mm, 12mm, 14mm, etc., respectively. The protruding height of the second fan blade 222 is set to 25mm, 23mm, 21mm, etc., and the width of the second fan blade 222 is set to 30mm, 25mm, 20mm, etc., respectively.

It should be appreciated that the limitation of the height and width of the protrusions of the first fan blade 216 described above allows the first fan blade 216 to mainly perform a turnover function on the laundry. By limiting the height and width of the protrusions of the second fan blade 222, the second fan blade 222 mainly plays a role in rubbing clothes.

In this embodiment, the number of the second pulsators 22 may be three, as shown in fig. 8, to achieve a good cleaning effect.

In combination with the eccentric arrangement of the first pulsator 21 with respect to the second pulsator 22, in some specific embodiments, the first rotation center 211 is spaced apart from the second rotation center 221 by more than 20mm in the horizontal direction.

In connection with fig. 6, in the case where the first rotation axis M1 and the second rotation axis M2 are disposed in parallel, i.e., the interval between the first rotation axis M1 and the second rotation axis M2 is greater than 20mm. By the arrangement mode, the second pulsator 22 can sufficiently rub the clothes, and a good cleaning effect is achieved.

The foregoing is only the embodiments of the present application, and therefore, the patent scope of the application is not limited thereto, and all equivalent structures or equivalent processes using the descriptions of the present application and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the application.

Claims (9)

1. A washing machine, comprising:

A drum body formed with a laundry accommodating chamber for accommodating laundry to be washed;

The first pulsator is horizontally arranged in the clothes accommodating cavity and can rotate along a first rotation center of the first pulsator;

the driving piece is connected with the first pulsator to drive the first pulsator to rotate around the first rotation center;

The second pulsator is rotatably connected with the first pulsator and is positioned on the top surface of the first pulsator, the second pulsator can rotate around a second rotation center of the second pulsator under the drive of the washed clothes, and the second rotation center is eccentrically arranged relative to the first rotation center;

the top surface of the first impeller is convex to be arranged in an arc surface, and the second impeller is attached to the arc surface of the first impeller;

The second impeller is provided with a third fan blade and a fourth fan blade, the third fan blade is circularly arranged by taking a second rotation center as a circle center, and a plurality of third fan blades are arranged at intervals in the radial direction of the second impeller; the fourth fan blades are arranged along the direction from the second rotation center to the position of the edge of the second impeller, and a plurality of fourth fan blades are arranged along the circumferential direction of the second impeller.

2. A washing machine as claimed in claim 1, characterized in that,

The first pulsator can rotate around a first rotating axis passing through the first rotating center, the second pulsator can rotate around a second rotating axis passing through the second rotating center, and an included angle is formed between the first rotating axis and the second rotating axis.

3. A washing machine as claimed in claim 1, characterized in that,

The number of the second impellers is multiple, and the second impellers are arranged on the top surface of the first impeller at intervals.

4. A washing machine as claimed in claim 3, characterized in that,

The second rotation centers of the plurality of second impellers are respectively the same as the first rotation centers in the horizontal direction in terms of spacing, and the spacing between the second rotation centers of two adjacent second impellers is the same.

5. A washing machine as claimed in claim 3, characterized in that,

The diameter of the second pulsator is larger than or equal to one fifth of the diameter of the first pulsator, and the number of the second pulsators is smaller than or equal to four.

6. A washing machine as claimed in claim 1, characterized in that,

The driving piece comprises a driving shaft, the driving shaft is connected with the center of the first pulsator, and the driving shaft is used for driving the first pulsator to rotate along the first rotation center;

The washing machine comprises a gasket, the driving shaft penetrates through the gasket, and one side of the gasket is abutted against the first pulsator.

7. A washing machine as claimed in claim 1, characterized in that,

The washing machine comprises a connecting shaft, wherein the connecting shaft is formed by downwards protruding a lower structure of the second pulsator, and the connecting shaft is rotatably arranged on the first pulsator; or alternatively

The connecting shaft is formed by upwards protruding the upper structure of the first impeller, and the second impeller is rotatably arranged on the connecting shaft.

8. A washing machine as claimed in claim 1, characterized in that,

The top surface of the first impeller is provided with a plurality of first blades in a protruding mode, the top surface of the second impeller is provided with a plurality of second blades in a protruding mode, and the first blades and the second blades are used for cleaning clothes to be cleaned;

The height of the protrusions of the first fan blades is greater than or equal to 40mm, the width of the first fan blades is greater than or equal to 10mm, the height of the protrusions of the second fan blades is less than or equal to 25mm, and the width of the second fan blades is less than or equal to 30mm.

9. A washing machine as claimed in claim 1, characterized in that,

The distance between the first rotation center and the second rotation center in the horizontal direction is larger than 20mm.