Impeller assembly of washing equipment and washing equipment

Abstract

The invention discloses an impeller assembly of washing equipment and the washing equipment. The impeller assembly comprises an impeller body; the impeller structure is arranged on the impeller body; the essence washing structure is provided with a containing cavity used for putting detergent, and a plurality of containing through holes allowing liquid in the containing cavity to flow out are formed in the cavity wall of the containing cavity. The liquid flowing out of the containing through hole reaches the lower space of the impeller body, and the detergent can be fully dissolved. The essence washing structure is arranged on the impeller body and used for containing a detergent, so that the essence washing structure does not occupy more space in a box body of the washing equipment, and concentration and compactness of the structure are facilitated; detergent liquid in the accommodating cavity can be drained to a space below the impeller main body, so that a high-concentration detergent is prevented from being in direct contact with clothes, washing water below the impeller assembly can be stirred due to rotation of the impeller assembly, and sufficient dissolution of the detergent is facilitated; therefore, clothes are prevented from being rinsed uncleanly, and the utilization rate of the detergent and the washing cleanliness rate of the clothes are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of washing equipment, and in particular relates to a pulsator assembly of washing equipment and a washing equipment having the pulsator assembly. Background Art

[0002] Conventional pulsator washing machines typically consist of a housing, an outer tub suspended within the housing, and an inner tub housed within the outer tub, driven by a rotating shaft. The shaft connects to a pulsator at the bottom of the inner tub. The pulsator has protruding ribs, which drive the water flow within the tub to form a vortex that alternates between clockwise and counterclockwise rotations, constantly flipping the clothes up and down, and gently rubbing against each other and the tub walls. This, combined with the detergent, removes dirt and cleanses the clothes.

[0003] A detergent box is usually provided on a pulsator washing machine. Detergent is poured directly into the detergent box, and then the water inlet valve is opened to let water into the detergent box, diluting and impacting the detergent in the detergent box, and flowing into the water tank. In this way, the detergent enters the barrel directly without being fully diluted and will adhere to the barrel wall and pipes. The water entering later may not be able to rinse it thoroughly, resulting in low detergent utilization rate and unclean rinsing of clothes.

[0004] Especially in some mini-type pulsator washing machines, in order to save space, no detergent box is provided; the detergent is poured directly into the inner barrel, so that the high-concentration detergent directly contacts the clothes, resulting in low detergent utilization rate and unclean rinsing of clothes.

[0005] In addition, there are now all-in-one washing and shoe washing machines, which can switch between shoe washing and laundry functions by disassembling and assembling the brush module installed on the impeller.

[0006] The above information disclosed in this background technology is only used to increase the understanding of the background technology of this application. Therefore, it may contain information that does not constitute the prior art known to ordinary technicians in this field. Summary of the Invention

[0007] In response to the above-mentioned problems in the prior art, the present invention proposes a pulsator assembly of a washing device, which is provided with an essence washing structure and is arranged on the pulsator body. It does not occupy much space in the washing device case, which is conducive to the centralization and compactness of the structure; and the detergent is drained to the space below the pulsator body to achieve full dissolution of the detergent, avoiding high-concentration detergent from directly contacting clothes, which is conducive to rinsing unclean clothes.

[0008] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: A pulsator assembly of a washing device, comprising: Impeller body; an essence washing structure, which is arranged on the pulsator body; The essence washing structure has a receiving cavity for adding detergent, and a plurality of receiving holes are opened on the cavity wall of the receiving cavity to allow the liquid in the receiving cavity to flow out; The liquid flowing out of the accommodating through hole reaches the space below the pulsator body, thereby dissolving the detergent.

[0009] In some embodiments of the present application, a downwardly extending water-distributing rib is provided on the impeller body for stirring the washing water in the space below the impeller body to promote the dissolution of detergent.

[0010] In some embodiments of the present application, the essence washing structure is assembled on the impeller body, and a first assembly part for installing and fixing the essence washing structure is provided on the impeller body. A plurality of through-holes are provided in the first assembly part for transporting the liquid flowing out of the accommodating through holes to the space below the impeller body.

[0011] In some embodiments of the present application, the accommodating through hole and the communicating hole match each other and are arranged adjacent to each other up and down.

[0012] In some embodiments of the present application, the upper part of the accommodating cavity is a closing structure, which has a first cavity wall close to the axis of the impeller body and a second cavity wall away from the axis of the impeller body, and the first cavity wall and the second cavity wall approach each other in the upward direction.

[0013] In some embodiments of the present application, the second cavity wall is extended in an arc shape in an upward direction toward the axis of the impeller body.

[0014] In some embodiments of the present application, the horizontal plane where the upper end of the first cavity wall is located is higher than the upper end of the second cavity wall.

[0015] In some embodiments of the present application, the accommodating cavity further has a cavity bottom connected to the lower end of the second cavity wall, and the cavity bottom is arc-shaped and bent in a direction from the second cavity wall upward to the direction away from the axis of the impeller body.

[0016] In some embodiments of the present application, the second cavity wall and the cavity bottom are matching arc-shaped structures.

[0017] In some embodiments of the present application, the accommodating cavity further has an arc-shaped cavity bottom, and the inner and outer ends of the cavity bottom are respectively connected to the first cavity wall and the second cavity wall.

[0018] In some embodiments of the present application, the essence washing structure has an annular body and an annular accommodating cavity provided in the annular body. A plurality of circumferentially spaced partitions are provided in the accommodating cavity for dividing the accommodating cavity into a plurality of accommodating spaces.

[0019] In some embodiments of the present application, the annular body is coaxially arranged with the impeller body.

[0020] In some embodiments of the present application, there is a first body between the inner ring of the annular body and the accommodating cavity, and the upper end face of the first body is a delivery guide surface that is tilted downward in a direction away from the axis of the annular body, and is used to drain the washing liquid delivered onto the delivery guide surface into the accommodating cavity.

[0021] In some embodiments of the present application, the annular body has a second body located outside the accommodating cavity, the outer side surface of the second body is inclined inward in an upward direction, and the lower end of the outer side surface of the second body is connected to the lower end surface of the second body.

[0022] In some embodiments of the present application, a quick-release knob is further included, wherein the inner ring of the annular body is provided with a mounting hole matching the quick-release knob, and an inwardly protruding locking rib is provided on the inner wall of the mounting hole.

[0023] In some embodiments of the present application, a spherical brush that can be replaced with the essence washing structure is also included. The spherical brush is installed when shoes need to be washed, and the essence washing structure is installed when clothes need to be washed.

[0024] In some embodiments of the present application, a first assembly portion is provided on the impeller body, and the essence washing structure is detachably assembled on the first assembly portion.

[0025] In some embodiments of the present application, the spherical brush is detachably assembled on the first assembly portion.

[0026] In some embodiments of the present application, a filling block and a bottom brush that can be installed interchangeably on the impeller body are also included.

[0027] In some embodiments of the present application, a second assembly portion is provided on the impeller body, and the filling block is detachably assembled on the second assembly portion; and the bottom brush is detachably assembled on the second assembly portion.

[0028] Based on the above-mentioned impeller assembly of a washing device, the present invention also provides a washing device having the above-mentioned impeller assembly, which is provided with an essence washing structure and is arranged on the impeller body. It will not occupy more space in the washing device box, which is conducive to the concentration and compactness of the structure; and the detergent is drained to the space below the impeller body to achieve full dissolution of the detergent, avoiding high-concentration detergent from directly contacting clothes, which is conducive to rinsing unclean clothes.

[0029] A washing device comprises the pulsator assembly of the washing device.

[0030] Compared with the prior art, the advantages and positive effects of the present invention are: an essence washing structure is provided on the impeller body for holding detergent, so that the essence washing structure does not occupy more space in the washing equipment box, which is conducive to the concentration and compactness of the structure; and the detergent liquid in the accommodating cavity can be drained to the space below the impeller body, avoiding high-concentration detergent from directly contacting clothes, and due to the rotation of the impeller assembly, the washing water below it can be stirred, which is conducive to promoting the full dissolution of the detergent; avoiding unclean rinsing of clothes, which is conducive to improving the utilization rate of detergent and the washing cleanliness rate of clothes.

[0031] Other features and advantages of the present invention will become more apparent after reading the detailed description of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 This is a structural schematic diagram of an embodiment of a pulsator assembly of a washing device proposed by the present invention; Figure 2 for Figure 1 An enlarged schematic diagram of the middle part of the structure; Figure 3 It is a cross-sectional structural diagram of the essence washing structure; Figure 4 for Figure 3 Schematic diagram of the enlarged structure of area A in the middle; Figure 5 for Figure 1 A schematic diagram of the upward-looking structure; Among them, the impeller assembly 100; Impeller body 10; water-repelling rib 11; connecting hole 12, Essence wash structure 20; Accommodating cavity 21; accommodating through hole 211; first cavity wall 212; second cavity wall 213; cavity bottom 214; partition 215; Annular body 22; first body 221; delivery guide surface 2211; second body 222; outer surface 2221; mounting hole 223; locking rib 2231; Quick release knob 30; filling block 40. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0035] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the positional relationships shown in the accompanying drawings, with the direction close to the impeller axis being "inside" and the opposite being "outside". The terms are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0036] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0037] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0038] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0039] See also Figure 1-Figure 5 , is an embodiment of a pulsator assembly of a washing machine proposed by the present invention. The pulsator assembly 100 of the washing machine includes: a pulsator body 10 and an essence washing structure 20. The essence washing structure 20 is provided on the pulsator body 10. The essence washing structure 20 can be used to hold detergent. When washing clothes, the detergent is first added to the essence washing structure 20, followed by the clothes, and then the washing machine is started.

[0040] The essence washing structure 20 has a receiving cavity 21 for adding detergent, and a plurality of receiving holes 211 are opened on the cavity wall of the receiving cavity 21, which can allow the liquid in the receiving cavity 21 to flow out; the liquid flowing out of the receiving holes 21 can reach the space below the impeller body 10, thereby achieving full dissolution of the detergent. The impeller assembly 100 is located at the bottom of the inner barrel, and the clothes added to the inner barrel are definitely located above the impeller assembly 100; the detergent added to the receiving cavity 21 can flow downward through the receiving holes 211 under the action of the gravity of the detergent itself and the centrifugal action when the impeller assembly 100 rotates, and can reach the space below the impeller body 10, so that the detergent is mixed with the washing water in the lower space; and some washing water may enter the receiving cavity 21 to dilute the detergent.

[0041] In this embodiment, an essence washing structure 20 is provided on the impeller body 10 for holding detergent, so that the essence washing structure 20 does not occupy more space in the washing equipment box, which is conducive to the concentration and compactness of the structure; and the detergent liquid in the accommodating cavity 21 can be drained to the space below the impeller body 10, avoiding high-concentration detergent from directly contacting clothes, and due to the rotation of the impeller assembly 100, the washing water below it can be stirred, which is conducive to promoting the full dissolution of the detergent; avoiding unclean rinsing of clothes, which is conducive to improving the utilization rate of detergent and the washing cleanliness rate of clothes.

[0042] In some embodiments of the present application, a downwardly extending water-distributing rib 11 is provided on the impeller body 10 for stirring the washing water in the space below the impeller body 10, which is beneficial to accelerate the dissolution of the detergent, and is beneficial to the mixing of the washing water in the space below the impeller body 10 with the washing water in other positions, which is beneficial to the uniform dissolution of the detergent.

[0043] In some embodiments of the present application, the essence washing structure 20 is mounted on the pulsator body 10. A first mounting portion for mounting and securing the essence washing structure 20 is provided on the pulsator body 10. To direct detergent flowing into the first mounting portion to the space below the pulsator body 10, a plurality of through-holes 12 are provided in the first mounting portion to convey liquid flowing out of the receiving holes to the space below the pulsator body 10. Preferably, the receiving holes 211 and the communicating holes 12 are aligned and positioned adjacent to each other, allowing liquid flowing out of the receiving holes 211 to flow directly into the communicating holes 12 and downward into the space below the pulsator body 10. The receiving holes 211 can be straight holes with an axis extending in the vertical direction, or curved holes with an axis curved; this is acceptable as long as the lower end of the receiving holes 211 and the upper end of the communicating holes 12 are adjacent to each other. Preferably, the lower end of the receiving holes 211 and the upper end of the communicating holes 12 are the same size. More preferably, the receiving holes 211 and the communicating holes 12 are coaxial and have the same diameter.

[0044] In some embodiments of the present application, the upper portion of the accommodating chamber 21 is a closing structure. First, the accommodating chamber 21 has an upper opening. The closing structure can reduce the size of the upper opening, which helps prevent clothing from entering the accommodating chamber 21 through the upper opening, preventing the clothing from coming into contact with high-concentration detergent, and preventing the clothing from being clamped or entangled. Second, when the impeller assembly 100 rotates, the detergent in the accommodating chamber 21 is subjected to centrifugal force and has a tendency to move radially outward. The closing structure prevents the detergent in the accommodating chamber 21 from being thrown out of the upper opening, allowing the detergent to flow downward from the accommodating through-hole 211. The closing structure includes a first cavity wall 212 near the axis of the impeller body 10 and a second cavity wall 213 away from the axis of the impeller body 10. The first cavity wall 212 and the second cavity wall 213 approach each other in the upward direction to form the closing structure. The upper ends of the first cavity wall 212 and the second cavity wall 213 are surrounded to form the upper opening.

[0045] In some embodiments of the present application, the second cavity wall 213 is arranged to extend in an arc shape in an upward direction toward the axis of the impeller body 10, so that when the detergent in the accommodating cavity 21 moves upward along the cavity wall of the accommodating cavity 21 under the action of centrifugal force, it can move inward in the upward direction along the second cavity wall 213, thereby consuming kinetic energy and preventing the washing liquid from reaching the top of the second cavity wall 213; even if it reaches the top, after breaking away from the second cavity wall 213, it will impact the first cavity wall 212 and then flow into the accommodating cavity 21 under the action of gravity. Preferably, the accommodating cavity 21 is arranged as an arc cavity or annular cavity coaxially with the axis of the impeller body 10 to reduce the flow of the detergent liquid in the accommodating cavity 21 in the radial direction of the impeller body 10 when the impeller assembly 100 rotates.

[0046] In some embodiments of the present application, the angle between the line connecting the upper end of the second cavity wall 213 and the center of the arc surface on which it is located and the horizontal plane is 60° to 90°; preferably, the angle between the line connecting the upper end of the second cavity wall 213 and the horizontal plane is 70° to 90°; more preferably, the angle between the line connecting the upper end of the second cavity wall 213 and the horizontal plane is 70° to 80°. Furthermore, the horizontal plane on which the upper end of the first cavity wall 212 is located is higher than the upper end of the second cavity wall 213. After the detergent in the accommodating chamber 21 escapes the second cavity wall 213, it will also be blocked by the first cavity wall 212 to prevent it from flowing out of the upper opening.

[0047] In some embodiments of the present application, the accommodating chamber 21 further comprises a chamber bottom 214 connected to the lower end of the second chamber wall 213, with the accommodating through-hole 211 defined in the chamber bottom 214. The chamber bottom 214 curves upward toward the second chamber wall 213 and away from the axis of the impeller body 10. The second chamber wall 213 and chamber bottom 214 are matched in arc shape and connected, facilitating the clean flow of detergent from the accommodating chamber 21 and preventing residual detergent. The chamber bottom 214 is arc-shaped, with its inner and outer ends connected to the first chamber wall 212 and second chamber wall 213, respectively.

[0048] In some embodiments of the present application, the essence washing structure 20 has an annular body 22 and an annular accommodating cavity 21 provided in the annular body 22. The annular body 22 is coaxially arranged with the impeller body 10, and the accommodating cavity 21 is coaxially arranged with the impeller body 10. A plurality of circumferentially spaced partitions 215 are provided in the accommodating cavity 21 to divide the accommodating cavity 21 into a plurality of accommodating spaces. If the accommodating cavity 21 is an annular through cavity, when the impeller assembly 100 rotates, the detergent in the accommodating cavity 21 remains stationary under the action of inertia, so that the detergent and the accommodating cavity 21 rotate relative to each other, that is, the detergent moves circumferentially in the accommodating cavity 21; by providing a plurality of partitions 215, the accommodating cavity 21 is divided into a plurality of accommodating spaces, and the partitions 215 are provided to extend radially along the annular body 22 to prevent the rotation of the detergent in the accommodating cavity 21.

[0049] In some other embodiments of the present application, the essence washing structure can also be set at a position away from the axis of the impeller body 10, and the accommodating cavity 22 is an arc-shaped cavity.

[0050] In some embodiments of the present application, the annular body 22 includes a first body 221 located inside the accommodating cavity 21. The first body 221 is located between the inner ring of the annular body 22 and the accommodating cavity. The upper end surface of the first body 221 is a delivery guide surface 2211 that is tilted downward in a direction away from the axis of the annular body 22. The delivery guide surface 2111 is used to guide the detergent delivered onto the delivery guide surface 2211 into the accommodating cavity. The upper portion of the accommodating cavity 21 is a closed structure, so that the upper opening of the accommodating cavity 21 is not large. Detergent needs to be delivered onto the pulsator assembly 100 located at the bottom of the inner tub. Therefore, when delivering detergent, the detergent can be poured onto the delivery guide surface 2211 and flow outward into the accommodating cavity 21 along the tilt direction of the delivery guide surface 2211.

[0051] In some embodiments of the present application, the annular body 22 has a second body 222 located outside the accommodating cavity 21, the outer side surface 2221 of the second body 222 is inclined inward in an upward direction, and the lower end of the outer side surface 2221 of the second body 222 is connected to the lower end surface of the second body 222.

[0052] In some embodiments of the present application, the impeller assembly 100 also includes a quick-release knob 30, and the inner circle of the annular body 22 is surrounded by a mounting hole 223 that matches the quick-release knob 30, that is, the first body 221 is surrounded by a mounting hole, and an inwardly protruding locking rib 2231 is provided on the inner wall of the mounting hole 223 for achieving axial limitation of the essence washing structure 20.

[0053] In some embodiments of the present application, the pulsator assembly 100 also includes a spherical brush (not shown) that is interchangeable with the essence-washing mechanism 20. The spherical brush is installed for shoe washing, and the essence-washing mechanism 20 is installed for laundry, thus achieving integrated laundry and shoe washing capabilities. The pulsator body 10 is provided with a first assembly portion, to which the essence-washing mechanism 20 is detachably mounted. The spherical brush is also detachably mounted.

[0054] In some embodiments of the present application, the pulsator assembly 100 further includes a filler block 40 and a bottom brush (not shown) that are interchangeably mounted on the pulsator body 10. When washing clothes, the essence-washing structure 20 and the filler block 40 are mounted on the pulsator body 10. When washing shoes, the spherical brush and the filler block 40 are mounted on the pulsator body 10. A second mounting portion is provided on the pulsator body 10, to which the filler block 40 is removably mounted; the bottom brush is also removably mounted.

[0055] The following describes a washing method for a washing device having the above-mentioned pulsator assembly, which is beneficial to promoting the full dissolution of detergent, avoiding unclean rinsing of clothes, and improving the utilization rate of detergent and the washing cleanliness rate of clothes.

[0056] A washing method for a washing device, the washing device comprising an outer tub and an inner tub arranged in a set, the pulsator assembly being provided at the bottom of the inner tub; the washing method comprising the following steps: S10. Put the detergent into the receiving chamber 21; Specifically, after the detergent is added, part of the detergent will flow into the receiving through hole 211 under the action of gravity.

[0057] S20. Place the washed clothes into the inner tub; Specifically, at this time, the detergent in the accommodating cavity 21 continues to flow downward through the accommodating through hole 211 , and part of the detergent may have reached the space below the pulsator body 10 .

[0058] S30 starts the washing equipment and starts to flow water into the outer barrel; Specifically, the detergent in the accommodating cavity 21 continues to flow downward through the accommodating through-hole 211, and part of the detergent may have reached the space below the pulsator body 10; S40. The pulsator assembly rotates to stir the washing water in the space below the pulsator body 10.

[0059] Specifically, the rotation of the impeller assembly can stir the washing water in the space below the impeller body 10, so that the detergent that has reached the space below the impeller body 10 is dissolved; at the same time, the rotation of the impeller assembly is conducive to accelerating the detergent in the accommodating cavity 20 to flow through the accommodating through-hole 211 into the space below the impeller body 10 and dissolve with the washing water; and the rotation of the impeller assembly is conducive to the flow of washing water in the space below the impeller body 10 and washing water in other positions, ensuring the uniformity of detergent concentration in the outer barrel.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A pulsator assembly for a washing machine, characterized in that: include: Impeller body; an essence washing structure, which is arranged on the pulsator body; The essence washing structure has a receiving cavity for adding detergent, and a plurality of receiving holes are opened on the cavity wall of the receiving cavity to allow the liquid in the receiving cavity to flow out; The liquid flowing out of the accommodating through hole reaches the space below the pulsator body, thereby dissolving the detergent.

2. The impeller assembly according to claim 1, characterized in that: The impeller body is provided with a water-distributing rib extending downward, which is used to stir the washing water in the space below the impeller body and promote the dissolution of detergent.

3. The impeller assembly according to claim 1, characterized in that: The essence washing structure is assembled on the impeller body, and a first assembly part for installing and fixing the essence washing structure is provided on the impeller body. A plurality of through-holes are opened in the first assembly part for transporting the liquid flowing out of the accommodating through holes to the space below the impeller body.

4. The impeller assembly according to any one of claims 1 to 3, characterized in that: The upper portion of the accommodating cavity is a closing structure having a first cavity wall close to the axis of the impeller body and a second cavity wall away from the axis of the impeller body, and the first cavity wall and the second cavity wall approach each other in an upward direction.

5. The impeller assembly according to claim 4, characterized in that: The second cavity wall is extended in an arc shape in an upward direction toward the axis of the impeller body; the horizontal plane where the upper end of the first cavity wall is located is higher than the upper end of the second cavity wall.

6. The impeller assembly according to claim 4, characterized in that: The accommodating cavity further comprises a cavity bottom connected to the lower end of the second cavity wall, and the cavity bottom is curved in an arc shape in a direction approaching the second cavity wall upward and away from the axis of the impeller body.

7. The impeller assembly according to any one of claims 1 to 3, characterized in that: The essence washing structure comprises an annular body and an annular accommodating cavity provided in the annular body. A plurality of partitions arranged at circumferential intervals are provided in the accommodating cavity for dividing the accommodating cavity into a plurality of accommodating spaces.

8. The impeller assembly according to claim 7, characterized in that: The first body is located between the inner ring of the annular body and the accommodating cavity. The upper end face of the first body is a delivery guide surface that is tilted downward away from the axis of the annular body and is used to drain the washing liquid delivered onto the delivery guide surface into the accommodating cavity.

9. The impeller assembly according to claim 7, characterized in that: The annular body has a second body located outside the accommodating cavity. The outer side surface of the second body is inclined inward in an upward direction. The lower end of the outer side surface of the second body is connected to the lower end surface of the second body.

10. A washing device, characterized in that: A pulsator assembly for a washing device according to any one of claims 1 to 9.

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