Impeller assembly, washing equipment with impeller assembly and control method of washing equipment

Abstract

The invention discloses an impeller assembly, washing equipment with the impeller assembly and a control method thereof.The impeller assembly comprises a center bearing, a plurality of impeller blades extending outwards in the radial direction are installed on the periphery of the center bearing, and the impeller blades are movably arranged on the center bearing; the driving assemblies are used for providing power for movement of the impeller blades. According to the washing equipment, the impeller blades can independently move relative to the center bearing under the driving action of the driving assembly, when the impeller blades move, the position of the to-be-washed object located above the impeller blades can be changed, and then the purposes of adjusting the position of the to-be-washed object in the barrel body of the washing equipment and adjusting the gravity center of the to-be-washed object are achieved; particularly, when the barrel body is eccentric, the impeller blades are accurately controlled to move according to the eccentric condition, the position of the to-be-washed object causing eccentricity can be directly adjusted in a targeted mode, and the correction efficiency of the eccentricity of the barrel body is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical equipment, and specifically relates to a pulsator assembly, a washing device having the pulsator assembly, and a control method thereof. Background Art

[0002] "Washing device" generally refers to a class of household appliances that can wash, rinse, dehydrate clothes, etc., such as: pulsator washing machines, drum washing machines, washing and drying integrated machines, etc.

[0003] Taking a pulsator washing machine as an example, the pulsator washing machine relies on the friction between the pulsator driven by the motor to rotate forward and backward and the clothes to achieve the washing of the clothes. However, in the actual washing process, this washing method has a single water flow form, and the movement mode and trajectory of the clothes in the barrel are single. During the dehydration stage or the washing stage, due to excessive rotation speed, the clothes in the barrel are prone to uneven distribution and eccentricity, which will cause the barrel to hit the cabinet; at the same time, the single stirring method is also easy to cause excessive entanglement of the clothes in the barrel, resulting in clothes damage or incomplete cleaning, affecting the user experience.

[0004] To solve the above problems, some washing machines detect eccentricity and correct the eccentricity by adjusting the rotation stop ratio, rotation speed, etc. of the barrel and the pulsator; this method of correcting eccentricity has low efficiency and the correction effect is not obvious. In addition, some washing machines correct the eccentricity of the barrel by filling water into the washing machine barrel; this correction method not only has low correction efficiency, but also wastes water resources, especially for the dehydration process, it will seriously reduce the dehydration efficiency.

[0005] In view of this, the present invention is specifically proposed. Summary of the Invention

[0006] The present invention provides a pulsator assembly to achieve the purpose of flexibly adjusting the position of the object to be washed in the barrel of the washing device by controlling the movable pulsator blades.

[0007] The present invention also provides a washing device having the pulsator blades of the present invention and a control method thereof to achieve the purpose of correcting the eccentricity of the barrel of the washing device by controlling the movable pulsator blades and improving the eccentricity correction efficiency.

[0008] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0009] A pulsator assembly includes a central bearing, and a plurality of pulsator blades extending radially outward are installed on the outer periphery of the central bearing. The plurality of pulsator blades are respectively movably arranged on the central bearing and are respectively connected with a driving assembly for providing power for the movement of the pulsator blades.

[0010] Further, several of the impeller blades are respectively arranged on the central bearing in a slidable manner along the axial direction of the central bearing.

[0011] Further, on the outer peripheral wall of the central bearing, there are several slideway structures extending along its axial direction, and several of the impeller blades are respectively arranged on several of the slideway structures in a slidable manner.

[0012] Further, at the end of the slideway structure, there are limiting protrusions;

[0013] Preferably, limiting protrusions are respectively arranged at both ends of the slideway structure, and the impeller blade is arranged between the limiting protrusions at both ends of the slideway structure in a slidable manner.

[0014] Further, several of the impeller blades are respectively arranged on the central bearing in a rotatable manner.

[0015] Further, on the outer peripheral wall of the central bearing, there is a mounting shaft extending circumferentially, and several of the impeller blades are respectively arranged on the mounting shaft in a rotatable manner.

[0016] Further, the power end of the driving assembly is arranged below the impeller blade in a liftable manner for pushing the impeller blade to move;

[0017] Preferably, the power end of the driving assembly is formed by a push block arranged on the output shaft of the motor.

[0018] Preferably, push blocks are respectively arranged below several of the impeller blades.

[0019] Further, an elastic member is arranged between the push block and the impeller blade.

[0020] The present invention also provides a washing device having the impeller assembly according to any one of the above technical solutions.

[0021] The present invention also provides a control method for a washing device having the impeller assembly according to any one of the above technical solutions. The control method includes:

[0022] Detecting the eccentricity of the tub of the washing device;

[0023] Controlling the driving assembly to drive the impeller blade to move;

[0024] Preferably, when the impeller blade moves, controlling the central bearing to stop rotating.

[0025] After adopting the above technical solutions, the present invention has the following beneficial effects compared with the prior art.

[0026] In the present invention, several impeller blades can move separately relative to the central bearing under the driving action of the driving assembly. When the impeller blades move, the position of the object to be washed located above the impeller blades can be changed, thereby achieving the purpose of adjusting the position of the object to be washed in the tub of the washing device and adjusting the center of gravity of the object to be washed. Especially when the tub is eccentric, precisely controlling the movement of the impeller blades according to the eccentricity situation can directly and specifically adjust the position of the object to be washed causing the eccentricity, improving the correction efficiency of the tub eccentricity.

[0027] In the present invention, when several impeller blades are arranged on the central bearing and rotate with the rotation of the central bearing, they can still move separately relative to the central bearing. During the process of adjusting the position of the object to be washed, there is no need to control the impeller to pause, which will not interfere with the operation of the impeller, thereby ensuring that the processing efficiency of the washing device for the object to be washed is not disturbed.

[0028] In the present invention, when the impeller blade slides upward, the object to be washed located above the impeller blade will be lifted upward. Further, with the flow of water and the rotation of the tub (i.e., the inner tub or the impeller), the position of the lifted object to be washed will change and move to other positions. Subsequently, the impeller blade slides downward to reset, completing the adjustment of the position of the object to be washed in the tub; or, the impeller blade may not reset and just continue to rotate according to the adjusted position.

[0029] When the impeller blade slides downward, the space above the impeller blade will become larger. With the flow of water and the rotation of the tub or the impeller, the objects to be washed at other positions will move to the space above the impeller blade, thus achieving the purpose of adjusting the object to be washed to the space above the impeller blade and increasing the weight of the object to be washed corresponding to the impeller blade.

[0030] The washing device of the present invention has the impeller assembly of the present invention. The washing device can precisely adjust the position of the object to be washed in its tub by controlling the movement of the impeller blades, avoiding the situation of tub eccentricity or precisely and efficiently correcting the existing eccentricity.

[0031] The control method of the washing device of the present invention directly adjusts the position of the object to be washed in the tub by controlling the movement of the impeller blades for eccentricity correction, with high correction efficiency; during the correction process, the impeller assembly and the tub can still maintain a rotating state, ensuring a relatively high processing efficiency of the washing device for the object to be washed.

[0032] The following further describes in detail the specific embodiments of the present invention with reference to the accompanying drawings. Brief Description of the Drawings

[0033] The accompanying drawings, as part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not unduly limit the present invention. Obviously, the accompanying drawings in the following description are only some embodiments, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts. In the drawings:

[0034] Figure 1 It is a schematic assembly structure diagram of the washing device of the present invention;

[0035] Figure 2 It is a schematic assembly structure diagram of the agitator assembly of the present invention;

[0036] Figure 3 It is a schematic assembly structure diagram of the central bearing of the agitator assembly of the present invention.

[0037] In the figure:

[0038] 1. Central bearing; 11. Slideway structure; 111. First limit protrusion; 112. Second limit protrusion; 2. Agitator blade; 3. Driving assembly; 31. Push block; 32. Motor; 33. Track structure; 4. Elastic member; 5. Inner barrel; 51. Inner barrel bottom; 6. Driving motor.

[0039] It should be noted that these accompanying drawings and text descriptions are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0041] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0042] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] As Figures 1 to 3 shown, the present invention provides a pulsator assembly and a washing device having the pulsator assembly. The washing device refers to a general term for a class of household appliances that can wash, rinse, dehydrate, etc. clothes, such as: pulsator washing machines, drum washing machines, washing and drying integrated machines, etc.

[0044] Among them, the pulsator washing machine includes an outer tub and an inner tub 5 disposed in the outer tub. The pulsator assembly is disposed at the bottom 51 of the inner tub. The drive motor 6 of the washing device is disposed below the inner tub 5. The inner tub shaft of the drive motor 6 is fixedly connected to the bottom 51 of the inner tub. The pulsator shaft of the drive motor 6 passes through the bottom 51 of the inner tub and is inserted into the central bearing 1 of the pulsator assembly. When the drive motor 6 is turned on, the inner tub 5 and the central bearing 1 of the pulsator assembly can rotate synchronously or independently of each other.

[0045] As an embodiment of the present invention, a plurality of pulsator blades 2 extending radially outward are mounted on the outer periphery of the central bearing 1 of the pulsator assembly. The plurality of pulsator blades 2 are respectively movably disposed on the central bearing 1.

[0046] Specifically, the plurality of pulsator blades 2 can respectively move axially up and down on the central bearing 1; or the plurality of pulsator blades 2 can respectively move circumferentially along the central bearing 1; or the plurality of pulsator blades 2 are respectively rotatably disposed on the central bearing 1.

[0047] The plurality of pulsator blades 2 are respectively connected to a drive assembly 3 for providing power for the movement of the pulsator blades 2. Among them, the drive assembly 3 includes a motor 32. The output shaft of the motor 32 is connected to the pulsator blade 2 to drive the pulsator blade 2 to move. While the pulsator blade 2 moves, the drive motor 6 can be controlled to drive the central bearing 1 to rotate.

[0048] In this embodiment, the plurality of pulsator blades 2 can move independently relative to the central bearing 1 respectively under the driving action of the drive assembly 3. When the pulsator blades 2 move, the position of the object to be washed above the pulsator blades 2 can be changed, thereby achieving the effect of adjusting the position of the object to be washed in the tub of the washing device. Especially when the tub is eccentric, according to the eccentric situation, precisely controlling the movement of the pulsator blades 2 can directly adjust the position of the object to be washed causing the eccentricity, improving the correction efficiency of the tub eccentricity.

[0049] In this embodiment, when the drive motor 6 drives the central bearing 1 to rotate, several impeller blades 2 will rotate along with the rotation of the central bearing 1. During the rotation process, the several impeller blades 2 can still move separately relative to the central bearing 1. That is, during the process of adjusting the position of the object to be washed, there is no need to control the impeller to pause, which will not interfere with the operation of the impeller, thereby ensuring that the processing efficiency of the washing equipment for the object to be washed is not interfered with.

[0050] As an embodiment of the present invention, several of the impeller blades 2 are slidably arranged on the central bearing 1 along the axial direction of the central bearing. Specifically, the upper end of the central bearing 1 is arranged away from the inner barrel bottom 51, and several of the impeller blades 2 are sequentially arranged along the circumferential direction of the central bearing 1 on one side of the upper end of the central bearing 1. Each of the impeller blades 2 can slide up and down along the axial direction of the central bearing 1 respectively.

[0051] When the impeller blade 2 slides upward, the object to be washed located above the impeller blade 2 will be lifted upward. Further, with the flow of water and the rotation of the barrel body, that is, the inner barrel 5 or the impeller, the position of the lifted object to be washed will change and move to other positions. Subsequently, the impeller blade 2 slides downward to reset, completing the adjustment of the position of the object to be washed in the barrel; or, the impeller blade 2 may not reset and just continue to rotate according to the adjusted position.

[0052] When the impeller blade 2 slides downward, the space above the impeller blade 2 will become larger. With the flow of water and the rotation of the barrel body or the impeller, the object to be washed at other positions will move to the space above the impeller blade 2, thus achieving the purpose of adjusting the object to be washed to the space above the impeller blade 2 and increasing the weight of the object to be washed corresponding to the impeller blade 2.

[0053] As an implementation manner of this embodiment, as Figures 1 to 3 shown, the outer peripheral wall of the central bearing 1 has several slideway structures 11 extending along its axial direction, and several of the impeller blades 2 are respectively slidably arranged on the several slideway structures 11. Among them, the sliding height and sliding speed of the impeller blade 2 on the slideway structure 11 are controllable.

[0054] Specifically, the slideway structure 11 is a chute structure extending along the axial direction of the central bearing 1. The end of the impeller blade 2 has a clamping convex structure, and the clamping convex structure is clamped in the chute structure and is slidably connected to the chute structure. Or, the slideway structure 11 is a protruding structure extending along the axial direction of the central bearing 1. The end of the impeller blade 2 has a card slot, and the card slot is slidably clamped on the protruding structure.

[0055] In this embodiment, several of the impeller blades 2 are respectively slidably arranged on the several chute structures 11. The impeller blades 2 can slide up and down along the chute structures 11, and the sliding direction is fixed, which is convenient for stably controlling the lifting of the impeller blades 2.

[0056] Further, as Figure 3 shown, the end of the chute structure 11 has a limiting protrusion; preferably, the two ends of the chute structure 11 are respectively provided with the limiting protrusions such as the first limiting protrusion 111 and the second limiting protrusion 112, and the impeller blades 2 are slidably arranged between the limiting protrusions at both ends of the chute structure 11.

[0057] In this embodiment, by setting the limiting protrusions, the up and down sliding positions of the impeller blades 2 are limited, which not only prevents the impeller blades 2 from disengaging from the chute structure 11 during the upward sliding process, but also avoids the impeller blades 2 descending too low and affecting the operation of the motor 32.

[0058] As another embodiment of the present invention, several of the impeller blades 2 are respectively rotatably arranged on the central bearing 1.

[0059] Specifically, as a specific implementation manner of this embodiment, the outer peripheral wall of the central bearing 1 has a mounting seat, and the impeller blades 2 are rotatably arranged on the mounting seat. The impeller blades 2 can rotate around the mounting seat as the rotation center, and the front surface of the impeller blades 2 always faces the inner barrel opening during the rotation process.

[0060] In this way, when there are more items to be washed on the left side above the impeller blades 2, the impeller blades 2 can be controlled to rotate to the right, and at the same time, by using the flow of water and the rotation of the barrel or the impeller, some of the items to be washed on the left side are moved to the right, so that the items to be washed in the inner barrel are evenly distributed, and at the same time, the center of gravity of the items to be washed can be shifted to the right.

[0061] On the contrary, when there are more items to be washed on the right side above the impeller blades 2, the impeller blades 2 can be controlled to rotate to the left, and at the same time, by using the flow of water and the rotation of the barrel or the impeller, some of the items to be washed on the right side are moved to the left, so that the items to be washed in the inner barrel are evenly distributed, and at the same time, the center of gravity of the items to be washed can be shifted to the left.

[0062] As another implementation manner of this embodiment, the outer peripheral wall of the central bearing 1 has a mounting shaft extending circumferentially, and several of the impeller blades 2 are respectively rotatably arranged on the mounting shaft.

[0063] Among them, the mounting shaft can be a complete ring-shaped mounting shaft. The ring-shaped mounting shaft is sleeved on the outer peripheral wall of the central bearing 1, and several of the impeller blades 2 are respectively rotatably arranged on the ring-shaped mounting shaft, and the mounting method is simple.

[0064] Alternatively, the mounting shaft includes several sections of mounting shafts, which are arranged circumferentially along the outer peripheral wall of the central bearing 1 on the outer peripheral wall of the central bearing 1, and several of the impeller blades 2 are respectively arranged on several sections of the mounting shafts; this setting method facilitates the replacement and installation of a single set of impeller blades 2 and the mounting shaft.

[0065] In this embodiment, the impeller blade 2 can rotate up and down with the mounting shaft as the rotation axis. When there are more items to be washed above one or several impeller blades 2, the impeller blade 2 can be controlled to rotate upward, so that the items to be washed above the impeller blade 2 will be moved to the other side of the impeller blade 2, completing the adjustment of the position of the items to be washed in the inner barrel 5, and at the same time shifting the center of gravity of the items to be washed to the other side; after the adjustment is completed, the impeller blade 2 can be controlled to rotate downward to reset.

[0066] As an embodiment of the present invention, the power end of the driving assembly 3 is arranged to be liftable below the impeller blade 2 for pushing the impeller blade 2 to move. Specifically, the power end of the driving assembly 3 can be formed by the output shaft of the motor 32, and the output shaft of the motor 32 directly pushes the impeller blade 2 to move.

[0067] Alternatively, the power end of the driving assembly 3 is formed by a push block 31 arranged on the output shaft of the motor 32. The push block 31 is respectively arranged below several of the impeller blades 2.

[0068] In this embodiment, when several of the impeller blades 2 are respectively arranged on the central bearing 1 slidably along the axial direction of the central bearing 1, the power end of the driving assembly 3 is controlled to rise, thereby pushing the impeller blade 2 to slide upward. Conversely, the power end of the driving assembly 3 is controlled to lower and reset, and the impeller blade 2 slides downward to reset, that is, the lifting of the impeller blade 2 is realized through the power end of the driving assembly 3.

[0069] When several of the impeller blades 2 are rotatably arranged on the mounting shaft, the power end of the driving assembly 3 is controlled to rise, thereby pushing the impeller blade 2 to flip upward around the mounting shaft. Conversely, the power end of the driving assembly 3 is controlled to lower and reset, and the impeller blade 2 flips downward around the mounting shaft to reset, that is, the rotation of the impeller blade 2 is realized through the power end of the driving assembly 3.

[0070] As an embodiment of this embodiment, the impeller blades 2 are respectively arranged slidably on several of the slideway structures 11, and the push block 31 is located directly below the middle area of the impeller blade 2. In this way, the force-bearing effect of the impeller blade 2 is uniform, and it is not easy to be damaged due to excessive local force.

[0071] As another implementation manner of this embodiment, several of the impeller blades 2 are respectively rotatably arranged on the mounting shaft of the central bearing 1, and the push block 31 is located below the tail end area of the impeller blade 2. In this way, the moment of force on the impeller blade 2 is relatively large, facilitating the push block 31 to push the impeller blade 2 to rotate around the mounting shaft.

[0072] As yet another implementation manner of this embodiment, a track structure 33 is arranged above the inner barrel bottom 51 and below the impeller assembly. One end of the track structure 33 faces the impeller blade 2, and the other end faces the inner barrel bottom 51. The output shaft of the motor 32 is connected to one end of a connecting rod, and the other end of the connecting rod is slidably arranged on the track structure 33 and connected to the push block 31. The output shaft of the motor 32 drives the connecting rod to move up and down along the track structure 33, and the connecting rod drives the push block 31 to move up and down.

[0073] In this implementation manner, by setting the track structure 33, the stability of the up and down movement of the push block 31 is ensured, which in turn helps to ensure the stability of the movement of the impeller blade 2.

[0074] As one implementation manner of this embodiment, an elastic member 4 is arranged between the push block 31 and the impeller blade 2; the elastic member 4 can be a spring. One end of the spring is connected to the impeller blade 2, and the other end faces the push block 31 for abutting against the push block 31.

[0075] In this implementation manner, when the push block 31 pushes the impeller blade 2, due to the buffering effect of the elastic member 4, the impact between the push block 31 and the impeller blade 2 can be effectively alleviated, reducing the loss rate of the impeller blade 2 and ensuring the use safety of the motor 32.

[0076] The present invention also provides a washing device having the impeller assembly according to any one of the above technical solutions, and the impeller assembly is arranged on the inner barrel bottom 51. The washing device can accurately adjust the position of the objects to be washed in the inner barrel by controlling the movement of the impeller blade 2, avoiding the situation of inner barrel eccentricity or accurately and efficiently correcting the existing eccentricity.

[0077] The present invention also provides a control method for a washing device having the impeller assembly according to any one of the above technical solutions, and the control steps include:

[0078] S1. Detect the eccentricity of the barrel of the washing device;

[0079] S2. Control the drive assembly to drive the impeller blade to move.

[0080] Among them, in step S1, by acquiring a captured image inside the barrel of the washing device; identifying the target area where the washing objects are distributed in the captured image; and detecting whether the barrel is eccentric according to the distribution position of the target area.

[0081] The control method of the washing device of the present invention directly adjusts the position of the object to be washed in the barrel by controlling the movement of the impeller blades, performs eccentricity correction, and has a high correction efficiency; during the eccentricity correction process, the impeller assembly and the inner barrel can still maintain a rotating state, ensuring that the washing device has a relatively high processing efficiency for the object to be washed.

[0082] Alternatively, when the impeller blade 2 of the present invention moves, the central bearing 1 can be controlled to stop rotating. In this way, after adjusting the distribution position of the object to be washed in the inner barrel 5, the impeller assembly is then controlled to start rotating to avoid aggravating the eccentricity situation.

[0083] As an embodiment of the present invention, the control steps of the washing device include:

[0084] S1. Detect the eccentricity of the barrel of the washing device, that is, the inner barrel.

[0085] S2. Obtain the distribution state of the object to be washed and determine the position where the object to be washed is distributed more.

[0086] S3. Control the impeller blade 2 corresponding to the position where the object to be washed is distributed more to slide upward to adjust the position of the object to be washed.

[0087] In this embodiment, the up and down sliding of the impeller blade is accurately controlled according to the position where the object to be washed is distributed, so as to realize the purpose of adjusting the position of the object to be washed and improving the eccentricity. Specifically, control the impeller blade 2 corresponding to the position where the object to be washed is distributed more to slide upward. In this way, on the one hand, the position of the object to be washed can be adjusted to reduce the weight of the object to be washed at this position, and on the other hand, the center of gravity of this position can be raised, thereby adjusting the eccentricity.

[0088] On the contrary, control the impeller blade 2 corresponding to the position where the object to be washed is distributed less to slide downward. In this way, on the one hand, the object to be washed at other positions can be adjusted to the space above this impeller blade 2 to increase the weight of the object to be washed at this position, and on the other hand, the center of gravity of this position can be lowered, thereby correcting the eccentricity.

[0089] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present invention, can make some changes or modifications using the technical content prompted above into equivalent embodiments of equivalent changes. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention.

Claims

1. A pulsator assembly, comprising a central bearing, and a plurality of pulsator blades radially extending outwardly are installed on the outer periphery of the central bearing. Characterized in that: The plurality of pulsator blades are respectively movably arranged on the central bearing, and are respectively connected with a driving assembly for providing power for the movement of the pulsator blades.

2. The pulsator assembly according to claim 1, Characterized in that: The plurality of pulsator blades are respectively slidably arranged on the central bearing along the axial direction of the central bearing.

3. The pulsator assembly according to claim 2, Characterized in that: The outer peripheral wall of the central bearing has a plurality of slideway structures extending along its axial direction, and the plurality of pulsator blades are respectively slidably arranged on the plurality of slideway structures.

4. The pulsator assembly according to claim 3, Characterized in that: The end of the slideway structure has a limiting protrusion; Preferably, the two ends of the slideway structure are respectively provided with the limiting protrusions, and the pulsator blade is slidably arranged between the limiting protrusions at both ends of the slideway structure.

5. The pulsator assembly according to claim 1, Characterized in that: The plurality of pulsator blades are respectively rotatably arranged on the central bearing.

6. The pulsator assembly according to claim 5, Characterized in that: The outer peripheral wall of the central bearing has a mounting shaft extending circumferentially, and the plurality of pulsator blades are respectively rotatably arranged on the mounting shaft.

7. The pulsator assembly according to any one of claims 1-6, Characterized in that: The power end of the driving assembly is liftably arranged below the pulsator blade for pushing the pulsator blade to move; Preferably, the power end of the driving assembly is formed by a push block arranged on the output shaft of the motor. Preferably, the push blocks are respectively arranged below the plurality of pulsator blades.

8. The pulsator assembly according to claim 6, Characterized in that: An elastic member is arranged between the push block and the pulsator blade.

9. A washing device, Characterized in that: It has the pulsator assembly according to any one of claims 1-8 above.

10. A control method for a washing device having the pulsator assembly according to any one of claims 1-8 above, Characterized in that: Detect the eccentricity of the tub of the washing device; Control the driving assembly to drive the pulsator blade to move; Preferably, when the pulsator blade moves, control the central bearing to stop rotating.

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