Spraying assembly and cleaning equipment

Abstract

The utility model discloses a spraying assembly and cleaning equipment, the spraying assembly comprises: a nozzle having a water inlet cavity and a water outlet hole communicated with the water inlet cavity; the impeller assembly is rotatably installed on the spray head around a first axis, the impeller assembly is provided with blades, and in the axial projection of the first axis, the projection of at least part of the blades coincides with the projection of the water outlet hole; a water column sprayed out of the water outlet holes can be sprayed to the blades, and the impeller assembly is driven to rotate around the first axis. Therefore, the impeller assembly is arranged on the spray head, the blades of the impeller assembly are arranged on the water outlet side of the water outlet hole, a water column sprayed out of the water outlet hole can act on the blades so as to drive the impeller assembly to rotate around the first axis direction, and under the rotation effect of the impeller assembly, water can be guided to the outer side (namely the side away from the first axis); the coverage range of water columns sprayed by the spraying assembly is enlarged, and the spraying cleaning effect of the spraying assembly is improved.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning equipment, and in particular to a spray assembly and a cleaning equipment. Background Art

[0002] Currently, in cleaning equipment (such as dishwashers, etc.), the cleaning function is achieved by spraying water jets on the items to be cleaned.

[0003] In the related art, the cleaning effect is usually improved by increasing the flushing pressure of the water jet. However, the coverage area of the water jet is small, and it cannot achieve a good cleaning effect on different types of tableware (such as deep-mouthed cups). Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. For this reason, an object of the present application is to provide a spray assembly with a large coverage area of the water jet ejected by the spray assembly, which can improve the cleaning ability of the spray assembly.

[0005] The present application also provides a cleaning equipment.

[0006] The spray assembly according to the first aspect embodiment of the present application includes: a spray head having a water inlet cavity and a water outlet hole communicating with the water inlet cavity; an impeller assembly rotatably mounted on the spray head about a first axis, the impeller assembly having blades, and in the axial projection of the first axis, at least a part of the projection of the blades coincides with the projection of the water outlet hole; wherein, the water jet ejected from the water outlet hole can shoot at the blades and drive the impeller assembly to rotate about the first axis.

[0007] In the present application, an impeller assembly is provided on the spray head, and the blades of the impeller assembly are arranged on the water outlet side of the water outlet hole. The water jet ejected from the water outlet hole can act on the blades, thereby driving the impeller assembly to rotate in the direction of the first axis. Under the action of the rotation of the impeller assembly, the water can be guided outward (i.e., the side away from the first axis) to increase the coverage range of the water jet ejected by the spray assembly and improve the spray cleaning effect of the spray assembly.

[0008] In some embodiments of the present application, the spray head includes: a main body portion forming a liquid inlet channel; a mounting seat provided at an end of the main body portion, and the mounting seat is provided with the water outlet hole and is used for mounting the impeller assembly.

[0009] In some embodiments of the present application, the mounting seat is provided with a mounting hole penetrating along the axial direction of the first axis, and the impeller assembly is mounted at the mounting hole.

[0010] In some embodiments of the present application, the middle of the mounting base is hollowed out, and the inner peripheral wall of the hollowed-out area is provided with a plurality of clamping arms extending towards one side of the first axis. The plurality of clamping arms are arranged at intervals in the circumferential direction around the first axis, and the end faces of the plurality of clamping arms near one end of the first axis jointly define the mounting hole.

[0011] In some embodiments of the present application, the impeller assembly includes: a rotating shaft, the blades are arranged on the rotating shaft, and the rotating shaft passes through the mounting hole; a fixed head, the fixed head is arranged at one end of the rotating shaft and is in clamping fit with the plurality of clamping arms.

[0012] In some embodiments of the present application, in the circumferential direction of the first axis, a water outlet hole is defined between the outer peripheral wall of the rotating shaft and any two adjacent clamping arms.

[0013] In some embodiments of the present application, the end face of the clamping arm near the first axis is configured as an arc surface, and the arc opening of the arc surface faces towards one side of the first axis and is open.

[0014] In some embodiments of the present application, in the projection in the axial direction of the first axis, the projection of the water outlet hole is arranged radially outside the projection of the mounting hole; and / or, there are a plurality of water outlet holes, and the plurality of water outlet holes are arranged at intervals in the circumferential direction of the mounting hole.

[0015] In some embodiments of the present application, the blade has a first contact surface and a second contact surface arranged opposite to each other. The water column ejected from the water outlet hole can be ejected towards the first contact surface and drive the impeller assembly to rotate, and the second contact surface is adapted to drive the water column to spread away from one side of the first axis during rotation.

[0016] The cleaning device according to the second aspect embodiment of the present application includes the above-mentioned spraying assembly.

[0017] The additional aspects and advantages of the present application will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present application. Description of the Drawings

[0018] The above and / or additional aspects and advantages of the present application will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0019] Figure 1 is a schematic structural diagram of a spraying assembly according to an embodiment of the present application;

[0020] Figure 2 is an exploded view of a spraying assembly according to an embodiment of the present application;

[0021] Figure 3 It is a schematic diagram of the cooperation between the spray assembly and the liquid supply pipeline according to an embodiment of the present application Figure 1 ;

[0022] Figure 4 It is Figure 3 a cross-sectional view at the center line A-A;

[0023] Figure 5 It is a schematic diagram of the cooperation between the spray assembly and the liquid supply pipeline according to an embodiment of the present application Figure 2 .

[0024] Reference numerals:

[0025] Spray assembly 100; liquid supply pipeline 200;

[0026] Sprinkler head 1; water outlet hole 101; mounting hole 102; main body part 11; liquid inlet flow channel 111; mounting seat 12; clamping arm 121; arc surface 1211;

[0027] Impeller assembly 2; blade 21; first contact surface 211; second contact surface 212; rotating shaft 22; fixed head 23;

[0028] First axis X. Detailed implementation manners

[0029] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0030] Reference will be made below to Figures 1 - 5 describe the spray assembly 100 according to an embodiment of the present application. The spray assembly 100 can be used for spraying water to clean the articles to be cleaned (such as tableware, cookware, etc.) by the water sprayed through the spray assembly 100. The spray assembly 100 can be applied to a cleaning device and used as a spraying device for spraying a cleaning liquid onto the articles to be cleaned in the cleaning device, so as to improve the cleaning effect of the cleaning device on the articles to be cleaned. Among them, the cleaning device can be a dishwasher or the like.

[0031] As Figure 1 shown, the spray assembly 100 according to an embodiment of the present application includes: a sprinkler head 1 and an impeller assembly 2.

[0032] Combined with Figure 1 and Figure 4As shown, the spray head 1 has a water inlet chamber and water outlet holes 101. The water inlet chamber is used to communicate with a liquid supply device to supply water to the water inlet chamber through the liquid supply device. The water in the water inlet chamber can be discharged outward through the water outlet holes 101 communicated therewith, so as to realize the water spraying function of the spray head 1, and thus clean the article by spraying a water column onto the article to be cleaned.

[0033] Combined with Figure 1 and Figure 2 As shown, the impeller assembly 2 is rotatably mounted on the spray head 1 about a first axis X, and the impeller assembly 2 has blades 21. In the axial projection of the first axis X, at least a part of the projection of the blades 21 coincides with the projection of the water outlet holes 101, so that the water column ejected through the water outlet holes 101 can be ejected onto the blades 21. Under the action of the water column, the impeller assembly 2 can be driven to rotate about the first axis X. During the rotation of the impeller, the blades 21 can guide the water column to the side away from the first axis X, thereby increasing the coverage area of the water column sprayed by the spraying assembly 100, so as to fully cover the article to be cleaned, play a role in comprehensively cleaning the article to be cleaned, and improve the cleaning ability of the spraying assembly 100.

[0034] Wherein, when the number of the water outlet holes 101 is multiple, the blades 21 can be oppositely arranged in the axial direction of the first axis X with at least one of the multiple water outlet holes 101.

[0035] It can be understood that air flow can be generated during the rotation of the impeller assembly 2. Under the action of the air flow, the water column can be guided to the side away from the first axis X to diffuse the water column and increase the coverage range of the water column. During the rotation of the impeller assembly 2, the rotating blades 21 can also act on the water column to slap the water column to the side away from the first axis X through the blades 21, thereby diffusing the water column and increasing the coverage range of the water column.

[0036] It should be noted that currently, in cleaning equipment (such as dishwashers, etc.), the cleaning function is realized by spraying a water column onto the article to be cleaned. In the related art, usually, the cleaning effect is improved by increasing the flushing pressure of the water column, but the coverage area of the water column is small, and it cannot achieve a good cleaning effect on different types of tableware (such as deep-mouth cups). That is to say, only by increasing the output pressure of the water column, some types of tableware cannot be fully cleaned, which affects the cleaning effect of the cleaning equipment on the article to be cleaned, such as deep-mouth cups with a relatively large depth, etc.

[0037] In the present application, an impeller assembly 2 is provided on the spray head 1, and the blades 21 of the impeller assembly 2 are arranged on the water outlet side of the water outlet holes 101. The water column ejected through the water outlet holes 101 can act on the blades 21, thereby driving the impeller assembly 2 to rotate in the direction of the first axis X. Under the action of the rotation of the impeller assembly 2, the water can be guided outward (i.e., the side away from the first axis X) to increase the coverage range of the water column ejected by the spray assembly 100 and improve the spray cleaning effect of the spray assembly 100.

[0038] As Figure 2 shown, in some embodiments of the present application, the spray head 1 includes: a main body portion 11 and a mounting seat 12. The cooperation between the main body portion 11 and the mounting seat 12 jointly defines the above-mentioned water inlet cavity.

[0039] Among them, the main body portion 11 forms a liquid inlet flow channel 111. The mounting seat 12 is provided at the end of the main body portion 11. The mounting seat 12 is provided with water outlet holes 101, and the mounting seat 12 is used for mounting the impeller assembly 2. The liquid inlet flow channel 111 is used for the cleaning liquid (such as water, etc.) to flow into the spray head 1, and the water column discharged outward through the water outlet holes 101 can be ejected toward the side of the blades 21 to drive the blades 21 to drive the impeller assembly 2 to rotate through the water column.

[0040] In a further embodiment of the present application, the mounting seat 12 is provided with a mounting hole 102 that penetrates along the axial direction of the first axis X, and the impeller assembly 2 is mounted at the mounting hole 102.

[0041] Among them, the mounting hole 102 is a mounting structure formed by the mounting seat 12 for mounting and cooperating with the impeller assembly 2. The structure of the mounting hole 102 is simple, and there is no need to add a complex connection structure at the mounting seat 12, which can reduce the assembly difficulty between the impeller assembly 2 and the mounting seat 12. For example: the impeller assembly 2 can be mounted to the mounting seat 12 by means of plug-in cooperation with the mounting hole 102.

[0042] As Figure 4 shown, in some embodiments of the present application, the middle of the mounting seat 12 is hollowed out, and the inner peripheral wall of the hollowed-out area is provided with a plurality of clamping arms 121 extending toward the first axis X. The plurality of clamping arms 121 are arranged at intervals in the circumferential direction of the first axis X, and the end faces of the plurality of clamping arms 121 adjacent to the first axis X jointly define the mounting hole 102.

[0043] Further combined with Figure 2 , the above-mentioned mounting hole 102 is jointly defined by the plurality of clamping arms 121. The mounting hole 102 can allow the impeller assembly 2 to pass through to achieve the assembly action between the impeller assembly 2 and the mounting seat 12.

[0044] It can be understood that the clamping arm 121 is used for clamping and cooperating with the impeller assembly 2. During the clamping and cooperating process between the clamping arm 121 and the impeller assembly 2, the clamping arm 121 is prone to deformation, which can reduce the assembly difficulty between the clamping arm 121 and the impeller assembly 2.

[0045] As Figure 2 shown, in some embodiments of the present application, the impeller assembly 2 includes a rotating shaft 22 and a fixed head 23. The rotating shaft 22 is disposed through the mounting hole 102, and the fixed head 23 is disposed at one end of the rotating shaft 22. The fixed head 23 is used for clamping and cooperating with a plurality of clamping arms 121 to realize the assembly of the impeller assembly 2 and the mounting seat 12. Among them, the blades 21 are provided on the rotating shaft 22, and the blades 21 are provided at one end of the rotating shaft 22 away from the fixed head 23. When the impeller assembly 2 is assembled with the mounting seat 12, the blades 21 are located outside the water inlet cavity.

[0046] Combined with Figure 1 and Figure 2 shown, the impeller assembly 2 is clamped and cooperated with the mounting seat 12 by inserting the fixed head 23 from the mounting hole 102 to the side of the water inlet cavity. Among them, the rotating shaft 22 is the mounting carrier of the fixed head 23 and the blades 21. After the impeller assembly 2 is assembled to the mounting seat 12, the impeller assembly 2 can rotate around the central axis of the rotating shaft 22 under the drive of the water column.

[0047] Referring to Figure 1 and Figure 2 Describe the installation process of the spray assembly 100 according to the embodiments of the present application:

[0048] Abut the fixed head 23 on the surface of the clamping arm 121 facing away from the water inlet cavity, and drive the impeller assembly 2 in the axial direction of the first axis X towards the water inlet cavity side to press-fit the fixed head 23 into the water inlet cavity to realize the installation of the impeller assembly 2 and the nozzle 1.

[0049] It can be understood that the clamping arm 121 is configured as a cantilever structure. Under the pressing action of the fixed head 23, the clamping arm 121 can deform towards the water inlet cavity side, and the clamping arm 121 resets when the fixed head 23 is inserted into the side of the clamping arm 121 close to the water inlet cavity. After the clamping arm 121 resets, the end of the clamping arm 121 (i.e., the end close to the first axis X) can abut against the circumferential wall of the rotating shaft 22 to support and position the rotating shaft 22 through a plurality of clamping arms 121.

[0050] As Figure 2 shown, in a further embodiment of the present application, the end face of the clamping arm 121 close to the first axis X is configured as an arc surface 1211, and the arc opening of the arc surface 1211 faces the first axis X side to reduce the resistance between the clamping arm 121 and the rotating shaft 22 and prevent the rotating shaft 22 from being scratched.

[0051] Referring to Figure 2 , the rotating shaft 22 is configured to be cylindrical, so that the outer peripheral wall of the rotating shaft 22 is smooth, which can reduce the sliding resistance when the rotating shaft 22 rotates relative to the nozzle 1, and the outer peripheral wall of the rotating shaft 22 can be in abutting fit with the arc surface 1211 of the clamping arm 121, so as to support and position the rotating shaft 22 in the circumferential direction through the end of the clamping arm 121, and improve the stability of the rotating shaft 22 during rotation.

[0052] Among them, a plurality of clamping arms 121 are distributed on the outer side of the rotating shaft 22 in the axial direction, and the arc surfaces 1211 of the plurality of clamping arms 121 can all abut against the outer peripheral wall of the rotating shaft 22, so as to support and position the rotating shaft 22, and improve the connection reliability between the impeller assembly 2 and the nozzle 1 and the stability of the rotating shaft 22 during rotation.

[0053] Referring to Figure 4 , in some embodiments of the present application, the top wall of the mounting seat 12 forming the hollow area is recessed gradually from the outer periphery to the center side toward the liquid inlet channel 111 side, so as to configure the top wall of the mounting seat 12 into a structure suitable for assisting the assembly of the impeller assembly 2.

[0054] It can be understood that during the assembly process of the impeller assembly 2 and the mounting seat 12, the fixing head 23 abuts against the clamping arm 121. The clamping arm 121 inclined toward the water inlet cavity is more likely to deform under the drive of the fixing head 23, so that the fixing head 23 can pass through the mounting hole 102 and be clamped to the side of the clamping arm 121 close to the water inlet cavity. At the same time, the difficulty for the fixing head 23 to break out from the mounting hole 102 can be increased, and the installation reliability between the impeller assembly 2 and the nozzle 1 can be improved.

[0055] In some embodiments of the present application, the fixing head 23 is configured as a spherical head, and the surface of the spherical head is smooth, which is convenient for abutting and cooperating with the clamping arm 121, and can further reduce the assembly difficulty between the impeller assembly 2 and the mounting seat 12.

[0056] As Figure 2 shown, in some embodiments of the present application, there are a plurality of blades 21, and the plurality of blades 21 are connected to the first end of the rotating shaft 22 far from the fixing head 23, and the plurality of blades 21 are evenly spaced in the circumferential direction of the rotating shaft 22, so as to improve the stability of the impeller assembly 2 during rotation.

[0057] It can be understood that when the plurality of blades 21 are evenly distributed on the rotating shaft 22, the center of gravity of the impeller assembly 2 can fall on the first axis X, so that the impeller assembly 2 has better stability when rotating around the first axis X. At the same time, when a plurality of blades 21 are provided, the diffusion effect of the water column can be improved by the cooperation of the plurality of blades 21 and the water column.

[0058] In some embodiments of the present application, in the circumferential direction of the first axis X, a water outlet hole 101 is defined between the outer peripheral wall of the rotating shaft 22 and any two adjacent engaging arms 121, so that a plurality of water outlet holes 101 can be formed on the radial outer side of the mounting hole 102, and water columns can be ejected simultaneously through the plurality of water outlet holes 101 to drive the impeller assembly 2, improving the driving effect of the water columns on the impeller assembly 2, and also improving the diffusion effect of the impeller assembly 2 on the water columns.

[0059] Referring to Figure 2 , when the impeller assembly 2 is not installed at the mounting hole 102, the water outlet hole 101 communicates with the mounting hole 102 and the opening faces the side of the mounting hole 102. When the impeller assembly 2 is installed at the mounting hole 102, the rotating shaft 22 can separate the mounting hole 102 from the water outlet hole 101 to form a plurality of water outlet holes 101 on the radial outer side of the mounting hole 102.

[0060] It can be understood that since the water outlet hole 101 is defined by the cooperation of a plurality of engaging arms 121 and the rotating shaft 22, the number of the water outlet holes 101 is the same as the number of the engaging arms 121. The water in the water inlet cavity can be discharged outward through the plurality of water outlet holes 101 respectively to initially disperse the water column, and the water column ejected through the water outlet hole 101 can cooperate with the impeller assembly 2 to further disperse, increasing the coverage range of the water column and improving the cleaning coverage area of the spraying assembly 100.

[0061] In some embodiments of the present application, in the projection in the axial direction of the first axis X, the projection of the water outlet hole 101 is arranged on the radial outer side of the projection of the mounting hole 102 to arrange the water outlet hole 101 at a position suitable for corresponding to the blade 21, ensuring the driving effect of the water column ejected from the water outlet hole 101 on the blade 21.

[0062] In a further embodiment of the present application, there are a plurality of water outlet holes 101, and the plurality of water outlet holes 101 are arranged at intervals in the circumferential direction of the mounting hole 102, so that water columns can be sprayed on the blade 21 through the plurality of water outlet holes 101 to improve the driving effect of the water columns on the blade 21 assembly.

[0063] Wherein, the water outlet hole 101 penetrates through the top wall of the mounting seat 12 in the axial direction of the first axis X, and the water outlet hole 101 and the mounting hole 102 are arranged at intervals on the mounting seat 12. Preferably, the water outlet holes 101 are evenly distributed around the mounting hole 102 in the circumferential direction.

[0064] In some embodiments of the present application, the blade 21 has a first contact surface 211 and a second contact surface 212 arranged opposite to each other. The water column ejected from the water outlet hole 101 can be ejected onto the first contact surface 211 to drive the impeller assembly 2 to rotate, and the second contact surface 212 can drive the water column to diffuse away from the first axis X during the rotation process.

[0065] Among them, the first contact surface 211 is inclined with respect to the ejection direction of the water column, so as to guide and diffuse the water column away from the first axis X through the first contact surface 211.

[0066] Referring to Figure 1 , when the water column ejected from the water outlet hole 101 acts on the first contact surface 211, the acting force generated by the water column can act on the blade 21 to drive the impeller assembly 2 to rotate around the first axis X. And when the water column impacts on the first contact surface 211, the reaction force generated by the first contact surface 211 can guide the water column away from the first axis X, thereby realizing the diffusion of the water column.

[0067] Furthermore, since the number of water columns is multiple, some of the water acting on the first contact surface 211 can contact the second contact surface 212 and diffuse outward under the action of the second contact surface 212, or diffuse outward under the action of the airflow generated when the impeller assembly 2 rotates.

[0068] That is to say, the impeller assembly 2 in the present application has at least three ways to drive the diffusion of the water column. One is the reaction force fed back to the water column by the first contact surface 211, the second is the acting force generated on the water column when the second contact surface 212 rotates, and the third is the acting force of the airflow generated during the rotation of the impeller on the water column.

[0069] According to the spray assembly 100 of the embodiment of the present application, the water column ejected from the nozzle 1 at the water outlet hole 101 cooperates with the impeller assembly 2 to realize the diffusion action of the water column, increase the coverage range of the water column sprayed by the spray assembly 100, increase the water column coverage area, so as to improve the cleaning ability of the spray assembly 100.

[0070] The cleaning device according to the embodiment of the present application includes the above-mentioned spray assembly 100. The water column sprayed by the spray assembly 100 has a large coverage area, which can improve the cleaning ability of the cleaning device.

[0071] Among them, the cleaning device can be constructed as a device such as a dishwasher that realizes the cleaning function by spraying water columns, but is not limited to a dishwasher.

[0072] Referring to Figure 3 and Figure 4 , in some embodiments of the present application, the cleaning device further includes a liquid supply pipeline 200. The liquid supply pipeline 200 is connected to the spray assembly 100, and water can be supplied to the spray assembly 100 through the liquid supply pipeline 200 to realize the cleaning function of the spray assembly 100.

[0073] It should be noted that in the cleaning device, water can also be supplied to the spray assembly 100 in other ways, and is not limited to the liquid supply pipeline 200.

[0074] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application 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 to the present application.

[0075] In the description of the present application, the "first feature" and "second feature" may include one or more of such features.

[0076] In the description of the present application, the meaning of "a plurality of" is two or more.

[0077] In the description of the present application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0078] In the description of the present application, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature.

[0079] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. 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 this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0080] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A spray assembly, characterized in that: include: A nozzle, the nozzle having a water inlet cavity and a water outlet hole connected to the water inlet cavity; An impeller assembly, the impeller assembly is rotatably mounted on the nozzle about a first axis, the impeller assembly has blades, and in an axial projection of the first axis, the projection of at least part of the blades coincides with the projection of the water outlet; The water column sprayed from the water outlet can be directed toward the blades and drive the impeller assembly to rotate around the first axis.

2. The spray assembly according to claim 1, characterized in that: The nozzle comprises: A main body portion, wherein the main body portion forms a liquid inlet channel; A mounting seat is arranged at the end of the main body, and the mounting seat is provided with the water outlet and is used for mounting the impeller assembly.

3. The spray assembly according to claim 2, characterized in that: The mounting seat is provided with a mounting hole which is arranged through-through along the axial direction of the first axis, and the impeller assembly is mounted at the mounting hole.

4. The spray assembly according to claim 3, characterized in that: The middle portion of the mounting seat is hollowed out, and the inner circumferential wall of the hollowed-out area is provided with a plurality of clamping arms extending toward one side of the first axis. The plurality of clamping arms are arranged at intervals in the circumferential direction around the first axis, and the end surfaces of the plurality of clamping arms adjacent to one end of the first axis jointly define the mounting hole.

5. The spray assembly according to claim 4, characterized in that: The impeller assembly comprises: A rotating shaft, the blades are arranged on the rotating shaft, and the rotating shaft passes through the mounting hole; A fixed head is arranged at one end of the rotating shaft and is engaged with the plurality of engaging arms.

6. The spray assembly according to claim 5, characterized in that: In the circumferential direction of the first axis, the water outlet hole is defined between the outer peripheral wall of the rotating shaft and any two adjacently arranged clamping arms.

7. The spray assembly according to claim 4, characterized in that: An end surface of the clamping arm adjacent to the first axis is configured as an arc-shaped surface, and an arc-shaped opening of the arc-shaped surface opens toward one side of the first axis.

8. The spray assembly according to claim 3, characterized in that: In the axial projection of the first axis, the projection of the water outlet is arranged radially outside the projection of the mounting hole; And / or, there are multiple water outlet holes, and the multiple water outlet holes are arranged at intervals in the circumferential direction of the mounting hole.

9. The spray assembly according to any one of claims 1 to 8, characterized in that: The blade has a first contact surface and a second contact surface arranged opposite to each other, the water column ejected from the water outlet can be ejected toward the first contact surface and drive the impeller assembly to rotate, and the second contact surface is suitable for driving the water column to diffuse toward a side away from the first axis during rotation.

10. A cleaning device, characterized in that: Comprising a spray assembly according to any one of claims 1-9.

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