Spray head assembly and cleaning device

Abstract

The utility model relates to a nozzle assembly and a cleaning device, and the nozzle assembly comprises a mounting seat which is provided with a spraying hole; the flow guide part is rotatably arranged on the mounting base, the flow guide part is provided with a flow guide channel, the flow guide channel is located above the spraying hole, the flow guide channel communicates with the spraying hole, the flow guide part is provided with a first water outlet communicating with the flow guide channel, and the axis of the first water outlet intersects with the axis of the spraying hole; the flow guide part is configured to rotate relative to the mounting base under driving of water flow sprayed out of the spraying holes so as to drive the water flow to be rotationally sprayed. According to the nozzle assembly provided by the invention, when the spraying hole sprays the water column, the flow guide channel guides the sprayed water column to enable the water column to be sprayed out through the first water outlet, and the axis of the first water outlet intersects with the axis of the spraying hole, so that the spraying angle of the water column can be changed under the guidance of the flow guide channel; and the flow guide piece rotates under the counter-acting force generated by water column impact, so that the water flow is driven to be rotationally jetted, and the coverage area of the cleaning area of the spraying holes is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of household appliances, in particular to a nozzle assembly and cleaning device. BACKGROUND

[0002] The working principle of the dishwasher is to spray a plurality of water columns through the rotating spray arm to wash the tableware, thereby achieving the effect of cleaning the tableware. However, due to the uncertainty of the shape and dirt level of the tableware in actual use, the current conventional scheme is to increase the regional washing spray arm at some specific positions to strengthen the washing of some specific tableware such as deep-mouthed cups or some heavily soiled tableware. The regional washing spray arm and the spray hole are generally fixedly arranged, the coverage area is limited, and the angle of each spray hole is also fixed. Moreover, the water column sprayed is generally circular or square, which is consistent with the shape of the spray hole. Therefore, the cleaning area is limited. SUMMARY

[0003] Therefore, it is necessary to provide a nozzle assembly and a cleaning device to solve the problem that the spray hole of the regional washing spray arm of the dishwasher is generally fixedly arranged in the prior art, resulting in a small cleaning area covered by the sprayed water column.

[0004] A nozzle assembly comprises a mounting seat provided with a spray hole, and a flow guide member rotatably arranged on the mounting seat, wherein the flow guide member is provided with a flow guide channel located above the spray hole, the flow guide channel is in communication with the spray hole, the flow guide member is provided with a first water outlet in communication with the flow guide channel, the axis of the first water outlet intersects the axis of the spray hole, and the flow guide member is configured to rotate relative to the mounting seat under the driving of the water flow sprayed from the spray hole to drive the water flow to rotate and spray.

[0005] The present application provides a nozzle assembly, a rotatable flow guide member is arranged on the mounting seat, a flow guide channel is formed on the flow guide member and arranged in the water outlet direction of the spray hole, the flow guide channel is in communication with the spray hole, so that when the spray hole sprays a water column, the flow guide channel guides the sprayed water column to be sprayed and output through the first water outlet, the axis of the first water outlet intersects the axis of the spray hole, so that the spray angle of the water column changes under the guidance of the flow guide channel, and the flow guide member rotates under the reaction force generated by the impact of the water column, thereby driving the water flow to rotate and spray, increasing the coverage area of the cleaning area of the spray hole, greatly improving the cleaning effect of the dishwasher and the user experience.

[0006] In one embodiment, the cross section of the flow guide channel is arc-shaped. By adopting the above structure, the flow guide channel extends in the horizontal direction to guide the water flow to turn in the horizontal direction, thereby the water flow simultaneously generates a horizontal reaction force on the side wall of the flow guide channel to drive the flow guide member to rotate, making the self-rotation of the flow guide member more smooth.

[0007] In one embodiment, there are at least two flow guiding channels, which are spaced apart circumferentially along the flow guiding member. By arranging at least two flow guiding channels circumferentially along the flow guiding member, the first outlet of each flow guiding channel will face different directions. This not only helps to improve the water jetting efficiency, but also makes the force driving the flow guiding member to rotate more uniform, thus making the self-rotation of the flow guiding member smoother.

[0008] In one embodiment, the angle between the axis of the first outlet and the axis of the spray hole is α, where α ≥ 5°.

[0009] In one embodiment, the mounting base is used to fit and install with the spray arm body to connect to the water outlet of the spray arm body. Specifically, the water inlet of the spray arm body is connected to a water supply device, the flow guide is connected to the water outlet of the spray arm body, and the nozzle assembly is mounted on the spray arm to better expand the cleaning area that can be covered as the spray arm is deployed and moves. Furthermore, the mounting base and the spray arm body are connected by a threaded connection.

[0010] In one embodiment, the flow guide includes a flow guide portion and a rotating assembly. The flow guide portion has the flow guide channel and the first water outlet. The flow guide portion is rotatably connected to the mounting base via the rotating assembly. With this structure, when the flow guide portion is impacted by the reaction force generated by the water column ejected from the nozzle, the rotating assembly will rotate relative to the mounting base, causing the flow guide portion to rotate. Furthermore, by adapting the rotating assembly to the mounting base, the flow guide portion can be positioned and installed, ensuring that the flow guide channel can communicate with the nozzle.

[0011] In one embodiment, the flow guiding part includes a flow guiding body and a flow guiding rib assembly. The flow guiding body is located above the nozzle and has a flow guiding wall arranged along the height direction. The flow guiding rib assembly is disposed on the outer peripheral wall of the flow guiding body, and the flow guiding rib assembly and the flow guiding wall enclose each other to form the flow guiding channel. The first water outlet is provided on the side of the flow guiding rib assembly away from the central axis of the flow guiding body. With the above structure, when the water column is ejected from the nozzle, the water column will enter the flow guiding channel formed by the flow guiding wall and the flow guiding rib assembly, and be transported to the first water outlet for output under the guidance of the flow guiding channel.

[0012] In one embodiment, the length of the guide rib assembly gradually decreases towards the direction away from the central axis of the guide body. The guide rib assembly has a second water outlet on its opposite sidewall to the guide wall, which communicates with the guide channel. The second water outlet is arranged along the length of the guide channel. The second water outlet allows for an open design at the bottom of the guide channel, enabling some water to be output through the second water outlet and form a sheet-like water column when the guide component rotates and sprays water. This expands the water column spray area and further enhances the cleaning effect.

[0013] In one embodiment, the flow guide rib assembly includes two ribs, which are spaced apart on the outer peripheral wall of the flow guide body. The two ribs and the flow guide wall enclose each other to form the flow guide channel, and the first outlet and the second outlet are formed between the two ribs.

[0014] In one embodiment, the distance between the guide wall and the central axis of the guide body gradually increases towards the top of the guide body. By providing an upwardly and outwardly extending guide wall to guide the water flow, the water flow can naturally diffuse outward and adjust the spray angle.

[0015] In one embodiment, there are at least two flow guiding channels, which are spaced apart circumferentially along the flow guiding portion. The bottom of the flow guiding body protrudes to form a flow dividing rib, which is positioned opposite to the direction of the water flow ejected from the nozzle. The flow guiding walls of the at least two flow guiding channels extend outward from the flow dividing rib. With this structure, when a water column is ejected from the nozzle, it collides with the flow dividing rib and is naturally diverted into each flow guiding channel.

[0016] In one embodiment, the flow divider is disposed opposite to the nozzle.

[0017] In one embodiment, the rotating assembly includes a first rotating shaft disposed at the bottom of the flow guide. The end of the first rotating shaft away from the flow guide is rotatably connected to the mounting base. The first rotating shaft has a through hole through which the nozzle communicates with the flow guide channel. By employing this structure, the first rotating shaft facilitates the positioning and installation of the flow guide. When the flow guide is impacted by the water jet from the nozzle, the first rotating shaft will rotate relative to the mounting base, causing the flow guide to rotate. Furthermore, the through hole connects the nozzle and the flow guide channel after the first rotating shaft is fitted and installed with the mounting base, thereby ensuring that the water output from the nozzle can fully enter the flow guide channel.

[0018] In one embodiment, the peripheral wall of the first rotating shaft is provided with a third water outlet communicating with the through hole. With the third water outlet, when the guide member drives the water flow to rotate and spray, part of the water flow can be output through the third water outlet and form a sheet-like water column, thereby expanding the water column spray area and further enhancing the cleaning effect.

[0019] In one embodiment, the mounting base includes a base body, a connecting ear, and a limiting member. The base body has the spray hole, and the limiting member is located above the base body and connected to the base body via the connecting ear. The rotating assembly further includes a second rotating shaft, which is disposed at the top of the guide section. The end of the second rotating shaft away from the guide section is rotatably connected to the limiting member, and the end of the first rotating shaft away from the guide section is rotatably connected to the base body. By adopting the above structure, the rotational engagement between the first rotating shaft and the base body, and the rotational engagement between the second rotating shaft and the limiting member, can ensure that the guide section can rotate stably after being impacted by the water column from the spray hole. Furthermore, the limiting member and the base body limit the two sides of the guide section, ensuring that the guide section is securely installed and will not be washed away or detached by the water column from the spray hole.

[0020] In one embodiment, one of the limiting member and the second rotating shaft is provided with a shaft hole, and the other of the limiting member and the second rotating shaft is inserted into the shaft hole. By adopting the above structure, it can be ensured that the limiting member can be reliably connected to the second rotating shaft.

[0021] In one embodiment, the limiting member is detachably mounted on the connecting ear. Thus, when assembling the guide and mounting base, the installer can first remove the limiting member to more easily position the first pivot of the guide on the base body, and then connect the limiting member to the connecting ear to limit the second pivot.

[0022] In one embodiment, the connecting ear has a mounting hole, and the limiting member is adapted to be installed in the mounting hole. The limiting member is rotatably connected to the second rotating shaft through the mounting hole. By providing a mounting hole on the connecting ear, the limiting member can be positioned and assembled more conveniently and quickly.

[0023] In one embodiment, the inner wall of the mounting hole is recessed to form a slot, and the outer wall of the limiting member is formed with a locking block that matches the slot, the locking block engaging with the slot.

[0024] In one embodiment, the connecting ear is ring-shaped, with both ends connected to the base body. The connecting ear and the base body enclose an installation space, and the flow guide is disposed within the installation space. By providing a ring-shaped connecting ear, the limiting member can be more stably positioned above the base body to limit the flow guide, and the ring-shaped connecting ear is easier for installers to hold, making the installation work more convenient.

[0025] A second aspect of this application provides a cleaning apparatus.

[0026] A cleaning device includes the aforementioned nozzle assembly. The second aspect of this application provides a cleaning device employing any of the aforementioned nozzle assemblies. A rotatable guide member is provided on the mounting base. A guide channel is formed on the guide member in the direction of water outlet from the nozzle. The guide channel communicates with the nozzle. When a water column is ejected from the nozzle, the guide channel guides the water column, causing it to be ejected through a first outlet. The axis of the first outlet intersects the axis of the nozzle. This guidance by the guide channel causes a change in the spray angle of the water column. Furthermore, the guide member rotates under the reaction force generated by the impact of the water column, thereby causing the water flow to rotate and spray. This increases the cleaning area coverage of the nozzle, significantly enhancing the cleaning effect of the cleaning device. Attached Figure Description

[0027] Figure 1 A perspective view of a nozzle assembly according to one embodiment;

[0028] Figure 2 An exploded view of a nozzle assembly according to one embodiment;

[0029] Figure 3 A cross-sectional view of a nozzle assembly according to one embodiment;

[0030] Figure 4 This is a schematic diagram of the assembly of the nozzle assembly and the main body of the spray arm according to one embodiment.

[0031] Figure 5 A first cross-sectional view of a flow guide component according to one embodiment;

[0032] Figure 6 This is a second cross-sectional view of a flow guide according to one embodiment.

[0033] The correspondence between the reference numerals and the component names is as follows:

[0034] 1 Mounting base, 101 Spray hole, 102 Mounting hole, 103 Slot, 104 Mounting space, 11 Base body, 12 Connecting ear, 13 Limiting component, 131 Locking block;

[0035] 2. Flow guide component, 201. Flow guide channel, 202. First outlet, 203. Second outlet, 204. Through hole, 205. Third outlet, 206. Shaft hole, 21. Flow guide part, 211. Flow guide body, 2111. Flow guide wall, 2112. Flow divider rib, 212. Flow guide rib assembly, 2121. Rib, 22. Rotating assembly, 221. First rotating shaft, 222. Second rotating shaft. Detailed Implementation

[0036] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0037] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0038] The nozzle assembly of some embodiments of the present invention is described below with reference to the accompanying drawings.

[0039] like Figures 1 to 6 As shown, this embodiment discloses a nozzle assembly, including: a mounting base 1, the mounting base 1 having a spray hole 101; a flow guide 2, the flow guide 2 being rotatably mounted on the mounting base 1, the flow guide 2 having a flow guide channel 201, the flow guide channel 201 being located above the spray hole 101 and communicating with the spray hole 101, the flow guide 2 having a first water outlet 202 communicating with the flow guide channel 201, the axis of the first water outlet 202 intersecting with the axis of the spray hole 101, the flow guide 2 being configured to rotate relative to the mounting base 1 under the drive of the water flow sprayed from the spray hole 101 to drive the water flow to rotate and spray.

[0040] This application provides a nozzle assembly. A rotatable guide member 2 is provided on the mounting base 1. A guide channel 201 is formed on the guide member 2 in the water outlet direction of the nozzle 101. The guide channel 201 is connected to the nozzle 101. When the nozzle 101 sprays out a water column, the guide channel 201 guides the water column so that the water column is sprayed out through the first water outlet 202. The axis of the first water outlet 202 intersects the axis of the nozzle 101. Thus, the guide channel 201 can change the spray angle of the water column. Furthermore, the guide member 2 rotates under the reaction force generated by the water column impact, thereby driving the water flow to rotate and spray. This increases the cleaning area coverage of the nozzle 101, greatly enhances the cleaning effect of the dishwasher, and improves the user experience.

[0041] like Figure 5As shown, in addition to the features of the above embodiments, this embodiment further specifies that the cross-section of the flow guiding channel 201 is arc-shaped. By adopting the above structure, the flow guiding channel 201 is curved and extended in the horizontal direction, thereby guiding the water flow to change direction in the horizontal direction. As a result, the water flow simultaneously generates a horizontal reaction force on the sidewall of the flow guiding channel 201, driving the flow guiding member 2 to rotate, making the self-rotation of the flow guiding member 2 smoother.

[0042] like Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: there are at least two flow guiding channels 201, and the at least two flow guiding channels 201 are arranged at intervals along the circumference of the flow guiding member 2. By arranging at least two flow guiding channels 201 at intervals along the circumference of the flow guiding member 2, the first outlet 202 of each flow guiding channel 201 will be arranged in different directions, which on the one hand helps to improve the water jetting efficiency, and on the other hand, the water jetting in different directions can make the force driving the flow guiding member 2 to rotate more uniform, thereby making the self-rotation of the flow guiding member 2 smoother.

[0043] like Figure 3 As shown, in addition to the features of the above embodiments, this embodiment further defines that the angle between the axis of the first outlet 202 and the axis of the nozzle 101 is α, where α ≥ 5°.

[0044] like Figure 1 and Figure 4 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the mounting base 1 is used to be adapted to the spray arm body to connect with the water outlet of the spray arm body. Specifically, the water inlet of the spray arm body is connected to the water supply device, the guide member 2 is connected to the water outlet of the spray arm body, and the nozzle assembly is set on the spray arm to better expand the cleaning area that can be covered as the spray arm is deployed and moves. Furthermore, the mounting base 1 and the spray arm body are connected by a threaded connection.

[0045] like Figure 1 and Figure 2 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the flow guide 2 includes a flow guide portion 21 and a rotating assembly 22. The flow guide portion 21 is provided with a flow guide channel 201 and a first water outlet 202. The flow guide portion 21 is rotatably connected to the mounting base 1 through the rotating assembly 22. By adopting the above structure, when the flow guide portion 21 is impacted by the reaction force generated by the water column ejected from the nozzle 101, the rotating assembly 22 will rotate relative to the mounting base 1 and drive the flow guide portion 21 to rotate. In addition, after the rotating assembly 22 is adapted to the mounting base 1, the flow guide portion 21 can be positioned and installed, ensuring that the flow guide channel 201 can communicate with the nozzle 101.

[0046] like Figure 3As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the flow guiding part 21 includes a flow guiding body 211 and a flow guiding rib assembly 212. The flow guiding body 211 is located above the nozzle 101. The flow guiding body 211 has a flow guiding wall 2111 arranged along the height direction. The flow guiding rib assembly 212 is disposed on the outer peripheral wall of the flow guiding body 211. The flow guiding rib assembly 212 and the flow guiding wall 2111 enclose a flow guiding channel 201. A first water outlet 202 is provided on the side of the flow guiding rib assembly 212 away from the central axis of the flow guiding body 211. By adopting the above structure, when the nozzle 101 sprays out a water column, the water column will enter the flow guiding channel 201 enclosed by the flow guiding wall 2111 and the flow guiding rib assembly 212, and be transported to the first water outlet 202 for output under the guidance of the flow guiding channel 201.

[0047] like Figure 1 and Figure 3 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the length of the guide rib assembly 212 gradually decreases in the direction away from the central axis of the guide body 211; the sidewalls opposite to the guide wall 2111 of the guide rib assembly 212 are provided with a second water outlet 203 communicating with the guide channel 201; the second water outlet 203 is arranged along the length direction of the guide channel 201. By setting the second water outlet 203, the bottom of the guide channel 201 can form an open design, so that when the guide member 2 drives the water flow to rotate and spray, part of the water flow can be output through the second water outlet 203 and form a sheet-like water column, thereby expanding the water column spray area and further enhancing the cleaning effect.

[0048] like Figure 3 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the flow guide rib assembly 212 includes two ribs 2121, the two ribs 2121 are spaced apart on the outer peripheral wall of the flow guide body 211, the two ribs 2121 and the flow guide wall 2111 enclose a flow guide channel 201, and a first outlet 202 and a second outlet 203 are formed between the two ribs 2121.

[0049] like Figure 3 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the distance between the guide wall 2111 and the central axis of the guide body 211 gradually increases towards the top of the guide body 211. By providing the upwardly and outwardly extending guide wall 2111 to guide the water flow, the water flow can naturally diffuse outward and adjust the spray angle.

[0050] like Figure 5 and Figure 6As shown, in addition to the features of the above embodiments, this embodiment further specifies that: there are at least two flow channels 201, and the at least two flow channels 201 are arranged circumferentially at intervals along the flow guide portion 21. The bottom of the flow guide body 211 protrudes to form a flow divider 2112, and the flow divider 2112 is arranged opposite to the direction of the water flow ejected from the nozzle 101. The flow guide walls 2111 of the at least two flow channels 201 extend outward from the flow divider 2112 respectively. By adopting the above structure, when the nozzle 101 ejects a water column, the water column will collide with the flow divider 2112 and be naturally diverted into each flow channel 201.

[0051] like Figure 3 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the flow divider 2112 is arranged opposite to the nozzle 101.

[0052] like Figure 4 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the rotating assembly 22 includes a first rotating shaft 221, which is disposed at the bottom of the guide section 21. The end of the first rotating shaft 221 away from the guide section 21 is rotatably connected to the mounting base 1. The first rotating shaft 221 is provided with a through hole 204, and the nozzle 101 communicates with the guide channel 201 through the through hole 204. By adopting the above structure, the first rotating shaft 221 can facilitate the positioning and installation of the guide section 21. When the guide section 21 is impacted by the water column ejected from the nozzle 101, the first rotating shaft 221 will rotate relative to the mounting base 1 and drive the guide section 21 to rotate. In addition, the first rotating shaft 221 is provided with a through hole 204. When the first rotating shaft 221 is fitted and installed with the mounting base 1, the through hole 204 will connect the nozzle 101 and the guide channel 201, thereby ensuring that the water output from the nozzle 101 can fully enter the guide channel 201.

[0053] like Figure 1 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the peripheral wall of the first rotating shaft 221 is provided with a third water outlet 205 with a through hole 204. With the third water outlet 205, when the guide member 2 drives the water flow to rotate and spray, part of the water flow can be output through the third water outlet 205 and form a sheet-like water column, thereby expanding the water column spray area and further enhancing the cleaning effect.

[0054] like Figure 2 and Figure 3As shown, in addition to the features of the above embodiments, this embodiment further defines: the mounting base 1 includes a base body 11, a connecting ear 12 and a limiting member 13. The base body 11 is provided with a spray hole 101. The limiting member 13 is located above the base body 11 and is connected to the base body 11 through the connecting ear 12. The rotating assembly 22 also includes a second rotating shaft 222. The second rotating shaft 222 is disposed on the top of the guide portion 21. The end of the second rotating shaft 222 away from the guide portion 21 is rotatably connected to the limiting member 13. The end of the first rotating shaft 221 away from the guide portion 21 is rotatably connected to the base body 11. By adopting the above structure, the rotational cooperation between the first rotating shaft 221 and the base body 11 and the rotational cooperation between the second rotating shaft 222 and the limiting member 13 can ensure that the guide part 21 can rotate stably after being impacted by the water column ejected from the nozzle 101. Furthermore, by limiting the two sides of the guide part 2 through the limiting member 13 and the base body 11, the guide part 2 can be securely installed and will not be washed away or detached by the water column ejected from the nozzle 101.

[0055] like Figure 3 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: one of the limiting member 13 and the second rotating shaft 222 is provided with a shaft hole 206, and the other of the limiting member 13 and the second rotating shaft 222 is inserted into the shaft hole 206. By adopting the above structure, it can be ensured that the limiting member 13 can be reliably connected to the second rotating shaft 222.

[0056] like Figure 2 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the limiting member 13 is detachably disposed on the connecting ear 12. Therefore, when assembling the guide member 2 and the mounting base 1, the installer can first remove the limiting member 13 to more easily position the first rotating shaft 221 of the guide member 2 on the base body 11, and then connect the limiting member 13 to the connecting ear 12 to limit the second rotating shaft 222.

[0057] like Figure 2 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the connecting ear 12 is provided with a mounting hole 102, and the limiting member 13 is adapted to be installed in the mounting hole 102. The limiting member 13 is rotatably connected to the second rotating shaft 222 through the mounting hole 102. By providing a mounting hole 102 on the connecting ear 12, the limiting member 13 can be more conveniently and quickly positioned and assembled.

[0058] like Figure 2 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the inner wall of the mounting hole 102 is recessed to form a slot 103, and the outer wall of the limiting member 13 is formed with a locking block 131 adapted to the slot 103, and the locking block 131 engages with the slot 103.

[0059] like Figure 1 andFigure 2 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the connecting ear 12 is ring-shaped, and both ends of the connecting ear 12 are connected to the base body 11 respectively. The connecting ear 12 and the base body 11 enclose an installation space 104, and the guide part 21 is disposed in the installation space 104. By providing the ring-shaped connecting ear 12, the limiting member 13 can be more stably positioned above the base body 11 to limit the guide part 2, and the ring-shaped connecting ear 12 is more convenient for installers to hold, making the installation work more convenient.

[0060] A second aspect of this application provides a cleaning apparatus.

[0061] This embodiment discloses a cleaning device including the aforementioned nozzle assembly. The cleaning device provided in the second aspect of this application, by employing any of the aforementioned nozzle assemblies, has a rotatable guide member 2 provided on the mounting base 1. The guide member 2 has a guide channel 201 formed on it in the water outlet direction of the nozzle 101. The guide channel 201 communicates with the nozzle 101. Thus, when a water column is ejected from the nozzle 101, the guide channel 201 guides the water column so that it is ejected through a first outlet 202. The axis of the first outlet 202 intersects the axis of the nozzle 101. Therefore, the guide channel 201 causes a change in the spray angle of the water column, and the guide member 2 rotates under the reaction force generated by the water column impact, thereby driving the water flow to rotate and spray, increasing the cleaning area coverage of the nozzle 101 and greatly enhancing the cleaning effect of the cleaning device.

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A nozzle assembly, characterized in that, include: Mounting base (1), wherein the mounting base (1) is provided with spray hole (101); A flow guide (2) is rotatably mounted on the mounting base (1). The flow guide (2) has a flow guide channel (201) located above the nozzle (101) and communicating with the nozzle (101). The flow guide (2) has a first outlet (202) communicating with the flow guide channel (201). The axis of the first outlet (202) intersects with the axis of the nozzle (101). The flow guide (2) is configured to rotate relative to the mounting base (1) under the drive of the water flow ejected from the nozzle (101) to drive the water flow to rotate and spray.

2. The nozzle assembly according to claim 1, characterized in that, The cross-section of the flow guide channel (201) is arc-shaped; and / or The flow guiding channels (201) are at least two, and the at least two flow guiding channels (201) are arranged at circumferential intervals along the flow guiding member (2); and / or The angle between the axis of the first outlet (202) and the axis of the nozzle (101) is α, where α ≥ 5°; and / or The mounting base (1) is used to be fitted and installed with the spray arm body to connect to the water outlet of the spray arm body.

3. The nozzle assembly according to claim 1, characterized in that, The flow guide (2) includes a flow guide section (21) and a rotating assembly (22). The flow guide section (21) is provided with the flow guide channel (201) and the first water outlet (202). The flow guide section (21) is rotatably connected to the mounting base (1) through the rotating assembly (22).

4. The nozzle assembly according to claim 3, characterized in that, The flow guide (21) includes a flow guide body (211) and a flow guide rib assembly (212). The flow guide body (211) is located above the nozzle (101). The flow guide body (211) has a flow guide wall (2111) arranged along the height direction. The flow guide rib assembly (212) is arranged on the outer peripheral wall of the flow guide body (211). The flow guide rib assembly (212) and the flow guide wall (2111) enclose and form the flow guide channel (201). The first water outlet (202) is provided on the side of the flow guide rib assembly (212) away from the central axis of the flow guide body (211).

5. The nozzle assembly according to claim 4, characterized in that, The length of the guide rib assembly (212) gradually decreases in the direction away from the central axis of the guide body (211). The guide rib assembly (212) and the guide wall (2111) have a second outlet (203) communicating with the guide channel (201) on their opposite sidewalls. The second outlet (203) is arranged along the length of the guide channel (201); and / or The distance between the guide wall (2111) and the central axis of the guide body (211) gradually increases towards the top of the guide body (211); and / or There are at least two flow channels (201), and the at least two flow channels (201) are arranged circumferentially at intervals along the flow guide (21). The bottom of the flow guide body (211) protrudes to form a flow divider (2112). The flow divider (2112) is arranged opposite to the direction of the water flow ejected from the nozzle (101). The flow guide walls (2111) of the at least two flow channels (201) extend outward from the flow divider (2112).

6. The nozzle assembly according to claim 3, characterized in that, The rotating assembly (22) includes a first rotating shaft (221), which is disposed at the bottom of the flow guide (21). One end of the first rotating shaft (221) away from the flow guide (21) is rotatably connected to the mounting base (1). The first rotating shaft (221) is provided with a through hole (204), and the spray hole (101) communicates with the flow guide channel (201) through the through hole (204).

7. The nozzle assembly according to claim 6, characterized in that, The peripheral wall of the first rotating shaft (221) is provided with a third outlet (205) that communicates with the through hole (204).

8. The nozzle assembly according to claim 6, characterized in that, The mounting base (1) includes a base body (11), a connecting ear (12), and a limiting member (13). The base body (11) is provided with the spray hole (101). The limiting member (13) is located above the base body (11). The limiting member (13) is connected to the base body (11) through the connecting ear (12). The rotating assembly (22) also includes a second rotating shaft (222). The second rotating shaft (222) is disposed at the top of the guide part (21). The end of the second rotating shaft (222) away from the guide part (21) is rotatably connected to the limiting member (13). The end of the first rotating shaft (221) away from the guide part (21) is rotatably connected to the base body (11).

9. The nozzle assembly according to claim 8, characterized in that, One of the limiting member (13) and the second rotating shaft (222) is provided with a shaft hole (206), and the other of the limiting member (13) and the second rotating shaft (222) is inserted into the shaft hole (206); and / or The limiting member (13) is detachably mounted on the connecting ear (12); and / or The connecting ear (12) is provided with a mounting hole (102), and the limiting member (13) is adapted to be installed in the mounting hole (102). The limiting member (13) is rotatably connected to the second rotating shaft (222) through the mounting hole (102); and / or The connecting ear (12) is ring-shaped, and its two ends are respectively connected to the base body (11). The connecting ear (12) and the base body (11) enclose an installation space (104), and the guide part (21) is disposed in the installation space (104).

10. A cleaning device, characterized in that, Includes the nozzle assembly as described in any one of claims 1 to 9.

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