Impeller, washing tub and impeller washing machine

Abstract

The present application provides a pulsator, which comprises a pulsator body, the pulsator body comprising a bottom wall and a side wall, the bottom wall being an inclined wall, and the bottom wall and the side wall surrounding a concave cavity with an inclined inner wall surface; the pulsator body is provided with a pulsator structure at different depth positions of the concave cavity, at least a part of the pulsator structure extending to the inner wall surface of the side wall, and a part of the pulsator structure extending to the inner wall surface of the bottom wall. In the present application, the pulsator is composed of the bottom wall and the side wall, the bottom wall and the side wall surrounding a concave cavity with an inclined inner wall surface, and at least a part of the pulsator structure extending to the inner wall surface of the side wall, and a part of the pulsator structure extending to the inner wall surface of the bottom wall, so that the flat-bottomed pulsator becomes a three-dimensional pulsator, and when the pulsator rotates, not only a part of the pulsator structure on the bottom wall agitates the water flow and the clothes, but also a part of the pulsator structure on the side wall agitates the water flow and the clothes, so that the three-dimensional agitation of the water flow and the clothes can be achieved, and the cleaning degree is better.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of impeller technology, in particular, a kind of impeller, washing barrel and impeller washing machine. BACKGROUND

[0002] With the improvement of people's living standards, washing machine has become one of the daily necessities in daily life, and impeller washing machine is one of washing machines.

[0003] The working principle of impeller washing machine is that the impeller is rotated by motor, and the impeller on the bottom of washing barrel is rotated in both directions to drive the clothes to flip up and down and left and right continuously, so that the clothes and the barrel wall are rubbed gently in water to realize decontamination and cleaning under the action of detergent.

[0004] The impeller of the existing impeller washing machine is basically provided with blades on the bottom surface of the impeller, and the water flow is stirred by the blades to wash the clothes, but the washing effect produced by the bottom surface blades is limited. SUMMARY

[0005] The present application is based on the discovery and understanding of the inventor that the washing effect of clothes by only relying on the bottom surface blades to stir the water flow is limited.

[0006] The present application aims to at least solve one of the above technical problems to some extent.

[0007] According to a first aspect of the present application, an impeller is provided, comprising: an impeller body comprising a bottom wall and a side wall, the bottom wall being an inclined wall, and the bottom wall and the side wall surrounding a concave cavity with an inclined inner wall surface;

[0008] The impeller body is provided with an impeller structure at different depth positions of the concave cavity, and at least a part of the impeller structure extends to the inner wall surface of the side wall and a part of the impeller structure extends to the inner wall surface of the bottom wall.

[0009] In some embodiments, the impeller structure is an integral arc-shaped ridge structure, one end of which extends to the inner wall surface of the side wall and the other end of which extends to the inner wall surface of the bottom wall.

[0010] In some embodiments, the impeller structure is provided with at least two groups of blades, wherein the first group of blades extends to the inner wall surface of the side wall and the second group of blades extends to the inner wall surface of the bottom wall, and the first group of blades and the second group of blades are distributed in radial direction.

[0011] In some embodiments, the first group of blades is distributed along the circumferential direction of the impeller body and protrudes upward above the bottom wall in the axial direction of the impeller body.

[0012] The second group of wave leaves are distributed along the circumference of the wave wheel body and protrude in the radial direction of the wave wheel body and to the radial inner side of the wave wheel body.

[0013] In some embodiments, the bottom wall forms an arc structure or a hemispherical structure of a lower arch, the side wall forms a cylindrical structure, and the bottom end of the side wall and the top end of the bottom wall are linked together.

[0014] The first group of wave leaves are at least partially arranged on the inner wall surface of the bottom wall, and the second group of wave leaves are at least partially arranged on the inner wall surface of the side wall.

[0015] In some embodiments, the height of the second group of wave leaves protruding from the inner wall surface of the side wall of the wave wheel body is greater than the height of the first group of wave leaves protruding from the inner wall surface of the bottom wall of the wave wheel body.

[0016] In some embodiments, the center of the wave wheel body is provided with a boss protruding upward, which is used for connecting with a driving structure.

[0017] The first group of wave leaves is located between the second group of wave leaves and the boss.

[0018] In some embodiments, a plurality of water-permeable holes are arranged around the boss and the first group of wave leaves.

[0019] In some embodiments, an auxiliary wave wheel is arranged on the boss of the wave wheel body, the boss is a hollow structure, the driving shaft of the auxiliary wave wheel passes through the hollow structure and is drivingly connected with the auxiliary wave wheel, and the wave wheel and the auxiliary wave wheel can be independently rotated, can be simultaneously rotated in the same direction, or can be respectively rotated in opposite directions.

[0020] According to the embodiments of the second aspect of the present application, a washing drum is provided, which comprises a drum bottom wall and a drum side wall, the drum bottom wall is an inclined wall, and the drum bottom wall and the drum side wall enclose a concave cavity with an inclined inner wall surface.

[0021] According to the embodiments of the third aspect of the present application, a pulsator washing machine is provided, which comprises the aforementioned washing drum and the aforementioned wave wheel.

[0022] The drum bottom wall of the washing drum and the bottom wall of the wave wheel are adapted together, and the drum side wall of the washing drum and the side wall of the wave wheel are adapted together.

[0023] In some embodiments, the inner bottom of the washing drum is an arc structure adapted to the wave wheel.

[0024] The wave wheel according to the embodiment of the present application is composed of a bottom wall and a side wall, the bottom wall and the side wall enclose a concave cavity with an inclined inner wall surface, and at least a part of the wave wheel structure extends to the inner wall surface of the side wall and a part of the wave wheel structure extends to the inner wall surface of the bottom wall, so that the flat-bottomed wave wheel becomes a three-dimensional wave wheel, and when the wave wheel rotates, not only the part of the wave wheel structure on the bottom wall agitates the water flow and the clothes, but also the part of the wave wheel structure on the side wall agitates the water flow and the clothes, so that the three-dimensional agitation of the water flow and the clothes is achieved, the tangential water flow can better rub the clothes, the washing strength is improved, the washing efficiency of the wave wheel washing machine for the clothes is higher, and the cleaning degree is better.

[0025] Additional aspects and advantages of the present application will be set forth in part in the following description, will become apparent from the following description, or will be learned through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic view of a wave wheel according to an embodiment of the present application;

[0027] Figure 2 is a structural schematic view of another wave wheel according to an embodiment of the present application;

[0028] Figure 3 is a sectional structural schematic view according to the embodiment of the present application; Figure 2

[0029] Figure 4 is a structural schematic view of a wave wheel washing machine according to the present application;

[0030] Figure 5 is a structural schematic view of a wave wheel washing machine according to another embodiment of the present application.

[0031] REFERENCE NUMERALS

[0032] 1, wave wheel body; 101, bottom wall; 102, side wall; 2, first group of wave blades; 3, second group of wave blades; 4, boss; 5, water-permeable hole; 6, auxiliary wave wheel; 7, washing tub; 8, motor; 9, washing machine shell. DETAILED DESCRIPTION

[0033] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0034] ​Throughout the specification and claims, the following terms take at least the meanings explicitly associated herein, unless the context clearly dictates otherwise. The meanings identified below do not necessarily limit the terms, but provide illustrative examples for the terms.

[0035] In the description of the present application, the phrase "in an embodiment" does not necessarily refer to the same embodiment, although it can. Similarly, the phrase "in some embodiments", as used herein, when used multiple times in the description, does not necessarily refer to the same embodiments, although it can. As used herein, the term "or" is the inclusive "or" operator and is equivalent to the term "and / or", unless the context clearly dictates otherwise. The term "based on" is not exclusive and allows for additional factors based on which a determination is made, unless the context clearly dictates otherwise. The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations. The scope of the application is solely limited by the scope of the claims, and any examples presented herein are illustrative only and are not intended to limit the scope of the claimed application. Various embodiments provided by the present application should not be construed as limiting the scope of the present application.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0037] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0038] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] In the present application, unless specifically defined and limited otherwise, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0040] The impeller washing machine is a common electrical appliance in people's daily life.

[0041] On the one hand, the impeller in the prior art is basically provided with blades on the bottom surface of the impeller, and the water flow is agitated by the blades to wash the clothes. However, the agitation effect of the water flow by the blades on the bottom surface is generally one-sided, which limits the washing effect of the impeller and affects the washing efficiency and cleanliness of the impeller washing machine.

[0042] Embodiment one

[0043] Based on this, as Figures 1-5 shown, the impeller according to the embodiment of the present application comprises:

[0044] The impeller body 1 comprises a bottom wall 101 and a side wall 102, the bottom wall 101 is an inclined wall, and the bottom wall 101 and the side wall 102 enclose a concave cavity with an inclined inner wall surface.

[0045] The impeller body 1 is provided with an impeller structure at different depth positions of the concave cavity, at least a part of the impeller structure extends to the inner wall surface of the side wall 102, and a part of the impeller structure extends to the inner wall surface of the bottom wall 101.

[0046] Specifically, the part of the blades located on the inner wall surface of the side wall 102 can be the second group of blades 3, and the blades located on the inner wall surface of the bottom wall 101 can be the first group of blades 2.

[0047] The pulsator washing machine comprises a washing machine shell 9, a washing tub 7, a motor 8 and a pulsator, the washing tub 7, the motor 8 and the pulsator are arranged in the washing machine shell 9, the pulsator washing machine drives the pulsator to rotate through the motor 8, and then the pulsator rotates in the positive direction and the reverse direction arranged at the bottom of the washing tub 7, the water flow is stirred, the clothes are continuously turned up and down and left and right, the clothes between clothes and the clothes and the tub wall are gently rubbed in the water, and the clothes are cleaned under the action of the detergent.

[0048] The concave cavity surrounded by the bottom wall and the side wall and having the inclined inner wall surface can make the pulsator body 1 more three-dimensional, the pulsator body 1 is no longer a flat bottom plate, and the first group of wave leaves 2 and the second group of wave leaves 3 on the pulsator body 1 can be more three-dimensionally arranged.

[0049] The shape of the first group of wave leaves 2 can be curved, the number of the first group of wave leaves 2 can be selected to be 3-6, preferably 5, the first group of wave leaves 2 are uniformly arranged around the center of the pulsator body 1, the shape of the second group of wave leaves 3 can be curved or straight, the number of the second group of wave leaves 3 can be selected to be 3-6, preferably 5, and the second group of wave leaves 3 are also uniformly arranged around the center of the pulsator body 1.

[0050] The first group of wave leaves 2 protrude in the axial direction of the pulsator body 1, which is equivalent to extending in the longitudinal direction of the pulsator washing machine, and can stir the bottom of the bottom-side water flow in the washing tub 7, while the second group of wave leaves 3 are at the outer circle of the pulsator body 1, the second group of wave leaves 3 protrude in the radial direction of the pulsator body 1, which is equivalent to extending in the horizontal direction of the pulsator washing machine to the center of the washing tub 7, so that the second group of wave leaves 3 can stir the side of the bottom-side water flow in the washing tub 7, so that through the rotation of the pulsator body 1, the first group of wave leaves 2 and the second group of wave leaves 3 can move and rotate, and when the first group of wave leaves 2 and the second group of wave leaves 3 rotate, they can simultaneously stir the bottom and side of the bottom-side water flow in the washing tub 7, realize the up-and-down layered water flow, achieve the tangent of the water flow, strengthen the stirring effect of the water flow, improve the stirring effect of the bottom-side water flow, and ensure the washing efficiency and cleanliness.

[0051] While the first group of wave leaves 2 and the second group of wave leaves 3 stir the water flow, they can also act on the clothes at the bottom, the first group of wave leaves 2 can act on the clothes at the bottom, and the second group of wave leaves 3 can rub the clothes at the side, so that the clothes can be three-dimensionally stirred while the water flow is three-dimensionally stirred, and the washing effect of the clothes is effectively improved.

[0052] The wave wheel according to the embodiment of the present application is composed of a bottom wall and a side wall, the bottom wall and the side wall enclose a concave cavity with an inclined inner wall surface, and at least a part of the wave wheel structure extends to the inner wall surface of the side wall and a part of the wave wheel structure extends to the inner wall surface of the bottom wall, so that the flat-bottomed wave wheel becomes a three-dimensional wave wheel, and when the wave wheel rotates, not only the part of the wave wheel structure on the bottom wall agitates the water flow and the clothes, but also the part of the wave wheel structure on the side wall agitates the water flow and the clothes, so that the three-dimensional agitation of the water flow and the clothes can be achieved, the tangential water flow can be obtained, the clothes can be better rubbed, the washing strength can be improved, the washing efficiency of the wave wheel washing machine for the clothes is higher, and the cleaning degree is better.

[0053] In some embodiments, the wave wheel body 1 has a bottom wall 101 and a side wall 102, the bottom wall 101 is a lower-arched circular arc surface, and the side wall 102 is a cylinder, the side wall 102 is located at the top of the bottom wall 101, and the bottom wall 101 and the side wall 102 form a circular arc structure.

[0054] Among them, the first group of wave leaves 2 are arranged on the bottom wall 101, and the second group of wave leaves 3 are arranged on the side wall 102.

[0055] Specifically, the circular arc structure can be divided into two parts, the bottom wall 101 can be a lower-arched circular arc surface, which can be a radar-shaped arc body, the side wall 102 is above the bottom wall 101 and can be integrally formed with the bottom wall 101, and the side wall 102 can be a cylindrical body, and the cylindrical body of the side wall 102 can be matched with the washing tub 7.

[0056] The first group of wave leaves 2 arranged on the bottom wall 101 can be convex upward along the axis direction of the arc body, and the second group of wave leaves 3 arranged on the side wall 102 can be convex inward to the middle along the horizontal direction of the inner wall of the cylindrical body of the side wall 102. The circular arc structure with the bottom wall 101 and the side wall 102 and the first group of wave leaves 2 on the bottom wall 101 and the second group of wave leaves 3 on the side wall 102 make the wave wheel as a whole a three-dimensional wave wheel, which can agitate the water flow and the clothes in three dimensions, improve the cleaning effect, and ensure the washing efficiency.

[0057] In some embodiments, the first group of wave leaves 2 and the second group of wave leaves 3 are an integral arc ridge structure.

[0058] Specifically, the first group of wave leaves 2 and the second group of wave leaves 3 can be an integral structure integrally formed with the wave wheel body 1, or can be assembled with the wave wheel body 1. The integral structure is more convenient to install when assembled with the wave wheel body 1, and the installation efficiency is higher.

[0059] In some embodiments, the first group of wave leaves 2 and the second group of wave leaves 3 are a split structure.

[0060] Specifically, the split structure, i.e., the first group of wave blades 2 and the second group of wave blades 3 are arranged at intervals, and a gap for the water flow to pass through is formed between the first group of wave blades 2 and the second group of wave blades 3, but does not affect the three-dimensional stirring effect of the first group of wave blades 2 and the second group of wave blades 3, which can reduce the resistance to the rotation of the impeller main body 1, reduce the requirements on the motor 8, and improve the service life of the motor 8.

[0061] In some embodiments, the first group of wave blades 2 and the second group of wave blades 3 are staggered in the radial direction of the impeller main body 1.

[0062] Specifically, the first group of wave blades 2 and the second group of wave blades 3 are not only split structures, but also staggered in the radial direction of the impeller main body 1, so that the first group of wave blades 2 and the second group of wave blades 3 can make the water flow tangent while rotating with the impeller main body 1, strengthen the stirring effect of the water flow, and improve the washing effect on the clothes.

[0063] In some embodiments, the height of the second group of wave blades 3 protruding from the impeller main body 1 is greater than the height of the first group of wave blades 2 protruding from the impeller main body 1.

[0064] Specifically, the radial protruding distance of the second group of wave blades 3 from the surface of the impeller main body 1 is greater than the axial protruding distance of the first group of wave blades 2 from the surface of the impeller main body 1, so that the second group of wave blades 3 can better contact the clothes and sufficiently rub the clothes, and also improve the stirring effect of the second group of wave blades 3 on the side of the water flow, thereby improving the washing effect on the clothes.

[0065] In some embodiments, a boss 4 protruding upward is arranged at the center of the bottom wall 101, and the boss 4 is used to connect with the driving structure.

[0066] A plurality of water-permeable holes 5 are arranged around the boss 4 and the first group of wave blades 2.

[0067] Specifically, in the prior art, a plurality of water-permeable holes 5 are arranged at the bottom of the impeller, so that the water flow can pass freely, but the detergent can also flow into the drum bottom along with the water flow, which is not conducive to the detergent staying on the clothes, and some detergents are not easy to dissolve and mostly sink to the bottom of the drum, which cannot be fully utilized. In addition, the water flows into the drum bottom quickly, and the contact time with the clothes is short, so the clothes are slowly soaked.

[0068] In the present application, the water-permeable holes 5 are arranged between the boss 4 and the first group of wave blades 2, and no water-permeable holes 5 are arranged at other positions. The number of water-permeable holes 5 does not need to be large, the water-permeable holes 5 penetrate the upper and lower portions of the impeller main body 1, and the water-permeable holes 5 can be arranged in 1-2 circles, and each circle can be provided with 3-5 water-permeable holes 5.

[0069] Because the impeller main body 1 is arc-shaped, water flow concentrates at the middle boss 4, and the water-permeable holes 5 are arranged around the boss 4, so that the impeller main body 1 can be normally drained, and the upper surface of the impeller main body 1 can slow down the water flow, so that the clothes can fully absorb water, the clothes are quickly soaked, and the detergent dispersed on the clothes will not quickly enter the bottom of the drum through the water-permeable holes 5, and with the agitation of the clothes, the detergent can fully act on the clothes, and the washing effect is improved.

[0070] In some embodiments, the middle of the impeller main body 1 is further provided with an auxiliary impeller 6, and the auxiliary impeller 6 is fixedly connected or rotatably connected with the impeller main body 1.

[0071] Specifically, the auxiliary impeller 6 can be a disc smaller than the impeller main body 1, and the auxiliary impeller 6 can be fixedly connected with the impeller main body 1 and rotate with the impeller main body 1 to improve the cleaning effect, or the auxiliary impeller 6 can be rotatably connected with the impeller main body 1, and the impeller can be connected with a hollow shaft below, the center of the hollow shaft can avoid the driving shaft of the impeller main body 1, the impeller main body 1 can be normally connected with the motor 8, the outer periphery of the hollow shaft can be provided with a gear, the gear is engaged with an auxiliary driving structure to drive the hollow shaft to rotate, the auxiliary impeller 6 and the impeller main body 1 can be driven to rotate by different driving structures, the auxiliary impeller 6 can generate water flow in the opposite direction, the clothes can be washed more effectively, and the probability of clothes being tangled is reduced.

[0072] Embodiment two

[0073] As shown in Figures 1-5 , the embodiment of the application further provides a washing drum, which comprises a drum bottom wall and a drum side wall, the drum bottom wall is an inclined wall, and the drum bottom wall and the drum side wall enclose a concave cavity with an inclined inner wall surface.

[0074] Embodiment three

[0075] As shown in Figures 1-5 , the embodiment of the application further provides a pulsator washing machine, which comprises the aforementioned washing drum 7 and the aforementioned impeller.

[0076] The drum bottom wall of the washing drum 7 and the bottom wall 101 of the impeller are adapted together, and the drum side wall of the washing drum 7 and the side wall 102 of the impeller are adapted together.

[0077] Specifically, the washing tub 7 can be a cylinder, the impeller is arranged at the bottom of the washing tub 7, and the impeller can rotate under the driving of the motor 8. The impeller washing machine provided in the application can realize the multi-directional three-dimensional action on the clothes and effectively improve the washing effect of the clothes through the arc structure of the impeller body and the three-dimensional arrangement of the first group of impeller blades 2 and the second group of impeller blades 3, so that the first group of impeller blades 2 can act on the clothes at the bottom, the second group of impeller blades 3 can rub the clothes at the high side, and the bottom and the side of the water flow at the bottom are stirred respectively, the up-and-down layered water flow is realized, the water flow is tangent, the stirring effect of the water flow is strengthened, the multi-directional three-dimensional action on the clothes is realized, and the washing effect of the clothes is effectively improved.

[0078] Moreover, the inner bottom of the washing tub 7 can be an arc structure matched with the impeller.

[0079] Specifically, the inner side of the washing tub 7 is used for containing clothes and washing liquid. The junction between the bottom wall and the side wall of the flat-bottomed washing tub 7 in the prior art forms a triangular water storage part, the liquid in the triangular water storage part is prone to accumulation and is not easy to flow and interact with the surrounding liquid, and some undissolved detergents are also accumulated. When washing is not performed, the sewage in this part is not easy to drain, resulting in a large amount of dirt.

[0080] The application provides an impeller, the impeller body is in a circular arc structure, and the inner bottom of the washing tub 7 is matched with the impeller body, so that the flat-bottomed washing tub can be designed as an arc-bottomed washing tub, and the water inflow of the arc-bottomed washing tub 7 is less than that of the flat-bottomed washing tub 7 when the water reaches the same water level.

[0081] The inner diameter of the washing tub 7 can be 460 mm, and the diameter of the transition section of the half-sphere can be 629 mm. According to theoretical calculation, the water inflow of the half-sphere washing tub 7 is about 7 L less than that of the flat-bottomed washing tub 7, and the water-saving effect is good. In particular, in the case of a small load, for example, when the load is 0-2 kg, the water inflow is set to be about 30 L, and compared with the flat-bottomed washing tub 7, 23% of water can be saved, and the water-saving effect is obvious.

[0082] In the description of the present specification, the description of the terms “one embodiment”, “some embodiments”, “an example”, “a specific example”, or “some examples” and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0083] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and that variations, modifications, substitutions and changes can be made by those skilled in the art without departing from the scope of the present application.

Claims

1. A pulsator, characterized in that, include: The impeller body (1) includes a bottom wall (101) and a side wall (102), wherein the bottom wall (101) is an inclined wall, and the bottom wall (101) and the side wall (102) form a concave cavity with an inclined inner wall surface; The impeller body (1) is provided with impeller structures at different depth positions in the cavity. At least a portion of the impeller structure extends to the inner wall surface of the side wall (102) and a portion extends to the inner wall surface of the bottom wall (101). The impeller structure is provided with at least two sets of impeller blades, wherein the first set of impeller blades (2) extends to the inner wall surface of the side wall (102), and the second set of impeller blades (3) extends to the inner wall surface of the bottom wall (101); The first group of wave blades (2) and the second group of wave blades (3) are of a split structure; The first group of wave blades (2) and the second group of wave blades (3) are radially misaligned; The first set of wave blades (2) is curved in shape. The first set of wave blades (2) is distributed circumferentially along the impeller body (1) and protrudes above the bottom wall (101) in the axial direction of the impeller body (1). The second set of wave blades (3) is curved or straight. The second set of wave blades (3) is distributed circumferentially along the impeller body (1) and protrudes radially inward toward the impeller body (1) in the radial direction.

2. The impeller according to claim 1, characterized in that, The bottom wall (101) forms a downward-curved arc-shaped structure or a hemispherical structure, and the side wall (102) forms a cylindrical structure. The bottom end of the side wall (102) and the top end of the bottom wall (101) are connected together. The first set of wave blades (2) is at least partially disposed on the inner wall surface of the bottom wall (101), and the second set of wave blades (3) is at least partially disposed on the inner wall surface of the side wall (102).

3. The impeller according to claim 1, characterized in that, The height of the second set of wave blades (3) protruding from the inner wall of the side wall (102) of the impeller body (1) is greater than the height of the first set of wave blades (2) protruding from the inner wall of the bottom wall (101) of the impeller body (1).

4. The impeller according to claim 1, characterized in that, The impeller body (1) has an upward protruding boss (4) at its center, which is used to connect with the drive structure; The first set of wave blades (2) is located between the second set of wave blades (3) and the boss (4).

5. The impeller according to claim 4, characterized in that, Multiple water-permeable holes (5) are arranged in a ring between the boss (4) and the first set of wave blades (2).

6. The impeller according to claim 4, characterized in that, include: An auxiliary impeller (6) is provided on the boss (4) of the impeller body (1). The boss (4) is a hollow structure. The drive shaft of the auxiliary impeller (6) passes through the hollow structure and is driven to connect with the auxiliary impeller (6). The impeller and the auxiliary impeller (6) can rotate independently, can rotate in the same direction at the same time, or can rotate in opposite directions.

7. A washing tub (7), characterized in that, include: The cylinder has a bottom wall and a side wall, wherein the bottom wall is an inclined wall and together with the side wall form a cavity with an inclined inner wall surface, the cavity being adapted to the impeller as described in any one of claims 1-6.

8. A pulsator washing machine, characterized in that, include: The washing tub (7) as described in claim 7 and the impeller as described in any one of claims 1-6; The bottom wall of the washing tub (7) and the bottom wall (101) of the impeller are adapted together, and the side wall of the washing tub (7) and the side wall (102) of the impeller are adapted together.

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