Spray head assembly and bathroom device

Abstract

The invention relates to the technical field of spraying devices, and discloses a spray head assembly and a bathroom device.The spray head assembly comprises a liquid inlet part and is provided with a liquid inlet cavity, the cavity wall of the liquid inlet cavity comprises an inner cavity wall and an outer cavity wall, the outer cavity wall is arranged on the outer side of the inner cavity wall in a surrounding mode, and a gap is formed between the outer cavity wall and the inner cavity wall to form the liquid inlet cavity; the inner cavity wall and / or the outer cavity wall are / is provided with at least one fluctuating section, and the fluctuating section extends in the direction from the liquid inlet end to the liquid outlet end of the liquid inlet cavity, so that at least part of the inner cavity of the liquid inlet cavity is gradually shrunk in the direction from the liquid inlet end to the liquid outlet end. The turbulent flow effect of mixed liquid sprayed out of the liquid outlet end can be enhanced, the contact surface area of the mixed liquid and air is increased, and the foaming effect is improved.

Description

Technical Field

[0001] The present application relates to the technical field of spray devices, and in particular to a spray head assembly and a bathroom device. Background Art

[0002] With the improvement of modern living standards, people's requirements for living environment and personal hygiene facilities are increasing. As an important part of modern home, the function and comfort of smart toilets have become the focus of consumers. Among them, the foam shield function is a highlight of smart toilets. By covering the toilet water cover with a foam layer formed by mixing foaming agent and water and introducing air, it effectively achieves multiple functions such as splash prevention, odor isolation, wall moisturizing and sterilization, greatly improving the user experience. The core of the foam shield technology lies in how to efficiently and evenly mix air into the mixture of foaming agent and water to form a stable and high-quality foam layer.

[0003] At present, the mainstream foam shield technology on the market uses an air pump as an air introduction device, which directly pumps air into the mixture of foaming agent and water to form the desired foam. However, this method has significant disadvantages: the air output by the air pump is often uneven, resulting in uneven foaming effects, affecting the stability and coverage of the foam layer. In addition, the introduction of the air pump not only increases the complexity of the system, but also brings additional cost burdens and potential risks of failure, which is not conducive to the long-term stable operation and cost control of the product. In order to overcome these limitations, in recent years, a technical solution using a self-priming foam nozzle has appeared on the market. This solution sprays the mixed liquid into the cavity at high speed through a small hole, and uses the Venturi effect to drive the surrounding air into the mixture, attempting to achieve pump-free air introduction.

[0004] Although the self-priming foam nozzle simplifies the system structure to a certain extent and reduces the dependence on the air pump, there are still significant technical problems in its actual operation. Specifically, since the nozzle usually sprays the mixed liquid in the form of thin strips and columns, this form limits the contact surface area between the mixed liquid and the air, resulting in a very limited amount of air that can be driven, which in turn affects the foaming effect and foaming amount, making the quality of the foam layer unsatisfactory. In order to compensate for this defect, it is often necessary to increase the amount of foaming agent, which not only causes a waste of foaming agent, but also further increases production costs. Summary of the invention

[0005] The present application provides a spray head assembly and a bathroom device to solve the problem that the contact surface area between the mixed liquid and the air is limited, which affects the foaming effect.

[0006] In the first aspect, the present application provides a nozzle assembly, including a liquid inlet portion, which is provided with a liquid inlet cavity, the cavity wall of the liquid inlet cavity includes an inner cavity wall and an outer cavity wall, the outer cavity wall is arranged around the outside of the inner cavity wall, and a gap is arranged between the two to form the liquid inlet cavity, and at least one undulating section is arranged on the inner cavity wall and / or the outer cavity wall, and the undulating section extends from the liquid inlet end to the liquid outlet end of the liquid inlet cavity, so that at least a part of the inner cavity of the liquid inlet cavity is gradually contracted from the liquid inlet end to the liquid outlet end.

[0007] Beneficial effect: By providing a liquid inlet chamber with an undulating section, the nozzle assembly not only realizes a tapered structure of at least a part of the inner cavity of the liquid inlet chamber along the direction from the liquid inlet end to the liquid outlet end, thereby enhancing the flow velocity of the mixed liquid in the liquid inlet chamber, but also, the undulating section can continuously change the flow direction of the mixed liquid, breaking the stable laminar flow state of the mixed liquid in the liquid inlet chamber, so that the mixed liquid can be sprayed out from the liquid outlet end in a dispersed turbulent state, so that gaps are generated between water droplets, increasing the contact area between the mixed liquid and the air, increasing the amount of air carried by the mixed liquid, improving the mixing efficiency of the mixed liquid and the air, and forming a stable and high-quality foam layer, which not only improves the foaming effect and foaming amount, but also reduces the waste of foaming agent and reduces production costs.

[0008] In an optional embodiment, the undulating section is arranged along the circumference of the inner cavity wall and / or the outer cavity wall, and the undulating section includes a first segment and a second segment, both of which are distributed along the direction from the liquid inlet end to the liquid outlet end of the liquid inlet cavity, and the first segment and the second segment have one side facing the liquid inlet cavity that is oblique to the direction from the liquid inlet end to the liquid outlet end of the liquid inlet cavity.

[0009] Beneficial effect: The undulating section is arranged along the circumference of the inner cavity wall and / or the outer cavity wall, and is divided into a first section and a second section, which are obliquely intersected with the direction from the liquid inlet end to the liquid outlet end of the liquid inlet cavity. This design enables the mixed liquid to generate stronger disturbance and shear force when flowing through the undulating section, thereby more effectively changing the flow direction of the mixed liquid, breaking the stable laminar flow state of the mixed liquid in the liquid inlet cavity, and allowing the mixed liquid to be sprayed out from the liquid outlet end in a dispersed turbulent state, thereby introducing air into the mixed liquid to form a more delicate and uniform foam.

[0010] In an optional embodiment, the liquid inlet portion is provided with a liquid inlet channel, the liquid inlet channel is provided with a liquid inlet port at its first axial end, the liquid inlet channel is provided with a liquid outlet port at its second axial end, the liquid inlet cavity is provided in the liquid inlet channel, the liquid inlet port is connected with the liquid inlet end, the liquid outlet port is connected with the liquid outlet end, and the liquid inlet channel coincides with the axis of the liquid inlet cavity.

[0011] Beneficial effect: By setting the liquid inlet channel that coincides with the axis of the liquid inlet cavity, it is ensured that the mixed liquid can flow smoothly into the liquid inlet cavity, and achieve efficient turbulence under the action of the undulating section. This design simplifies the internal structure of the nozzle, improves the flow efficiency of the mixed liquid, and reduces energy consumption.

[0012] In an optional embodiment, a flow guide is also included. The flow guide is provided with a diverter and a flow guide, a diverter hole is provided on the side of the diverter, and the flow guide is connected to the side of the diverter. Wherein, the liquid inlet channel is divided into a first channel and a second channel in sequence along the direction from the first end to the second end thereof, the inner diameter of the first channel is larger than the inner diameter of the second channel, the diverter is arranged in the first channel, and the diverter is against the outer wall of the second channel, the flow guide is arranged in the second channel, the outer wall of the flow guide and the inner wall of the second channel form the liquid inlet cavity, the undulating section is located on the outer wall of the flow guide and / or the inner wall of the second channel, and the diverter hole connects the first channel and the liquid inlet cavity.

[0013] Beneficial effect: The arrangement of the flow guide allows the mixed liquid to first enter the liquid inlet cavity through the diversion hole on the diversion part when flowing through the liquid inlet channel, further enhancing the dispersion effect of the mixed liquid. At the same time, the design of the flow guide part also ensures the formation of the liquid inlet cavity and improves the foaming effect.

[0014] In an optional embodiment, a plurality of the diverter holes are arranged at intervals along the circumference of the side surface of the diverter portion.

[0015] Beneficial effect: The multiple diversion holes arranged at intervals along the circumferential direction on the side of the diversion part enable the mixed liquid to be more evenly dispersed into the liquid inlet cavity, avoiding excessive accumulation of the mixed liquid in a local area. When used in conjunction with the undulating section, the turbulent effect on the foaming liquid is further improved.

[0016] In an optional embodiment, it further includes a mixing part, a bubbling part and a mesh. The mixing part is provided with a mixing chamber and an air inlet, the first end of the air inlet is connected to the mixing chamber, the second end of the air inlet is connected to the outside, and the first end of the mixing chamber is connected to the liquid outlet end of the liquid inlet chamber. The bubbling part is provided with a bubbling channel, and the bubbling channel is connected to the second end of the mixing chamber. The mesh is provided between the bubbling channel and the second end of the mixing chamber.

[0017] Beneficial effect: The setting of the mixing part and the foaming part enables the mixed liquid to be further mixed evenly after the introduction of air, and forms a fine foam layer through the mesh. This design not only improves the foaming effect, but also makes the foam layer more stable and prolongs the duration of the foam.

[0018] In an optional embodiment, the direction from the first end to the second end of the mixing chamber is parallel to the direction from the liquid inlet end to the liquid outlet end of the liquid inlet chamber, and is perpendicular to the side surface of the mesh.

[0019] Beneficial effect: The direction from the first end to the second end of the mixing chamber is parallel to the direction from the liquid inlet end to the liquid outlet end of the liquid inlet chamber, and is perpendicular to the side of the mesh. This design ensures that the mixed liquid can be sprayed in a certain direction in the mixing chamber, and after being fully mixed with the air, it can directly hit the mesh, thereby improving the foaming efficiency.

[0020] In an optional embodiment, a clamping block is provided on the outer wall of the mixing section, and a sink is provided on the bubble outlet section, the sink is communicated with the bubble outlet channel, the second end of the mixing section is located in the sink and abuts against the outer wall of the mixing section and the inner wall of the sink, a clamping hole is provided on the inner wall of the sink, and the clamping hole is clamped with the clamping block.

[0021] Beneficial effects: The arrangement of the clamping block and the clamping hole enables the mixing part and the foaming part to be conveniently connected together, and the connection is firm and reliable. This design simplifies the assembly process of the nozzle, improves production efficiency, and also facilitates the maintenance and replacement of the nozzle.

[0022] In an optional embodiment, the first end of the bubble outlet channel is located on the groove wall of the trough along the direction from the first end to the second end of the mixing chamber, and the mesh is arranged between the groove wall of the trough along the direction from the first end to the second end of the mixing chamber and the second end of the mixing chamber.

[0023] Beneficial effect: The first end of the bubble outlet channel is located on the groove wall of the sink along the direction from the first end to the second end of the mixing chamber, and the mesh is arranged between the groove wall of the sink along the direction from the first end to the second end of the mixing chamber and the second end of the mixing chamber. This design realizes the positioning of the mesh, which not only simplifies the assembly process of the nozzle and improves the production efficiency, but also avoids the leakage of foam between the mixing part and the bubble outlet part.

[0024] In a second aspect, the present application also provides a bathroom device including a spray head assembly.

[0025] Because the bathroom device includes a spray head assembly and has the same effect as the spray head assembly, it will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 A schematic diagram of the structure of a nozzle assembly according to an embodiment of the present application;

[0028] Figure 2 A cross-sectional view of a nozzle assembly according to an embodiment of the present application;

[0029] Figure 3 This is a schematic diagram of the structure of the liquid inlet part and the mixing part in the embodiment of the present application;

[0030] Figure 4 It is a cross-sectional view of the liquid inlet portion and the mixing portion in the embodiment of the present application;

[0031] Figure 5 This is a schematic diagram of the structure of the bubble outlet portion in the embodiment of the present application;

[0032] Figure 6 It is a cross-sectional view of the bubbling portion in the embodiment of the present application;

[0033] Figure 7 This is a schematic diagram of the structure of the flow guide member in the embodiment of the present application;

[0034] Figure 8 It is a cross-sectional view of the flow guide member in the embodiment of the present application;

[0035] Fig. 9 A schematic diagram of a structure in which an undulating section is provided in an embodiment of the present application;

[0036] Fig.10 It is a schematic diagram of a structure in which a plurality of undulating sections are provided in an embodiment of the present application.

[0037] Description of reference numerals:

[0038] 1. Liquid inlet; 1001. Liquid inlet cavity; 1002. Liquid inlet; 1003. Liquid outlet; 1004. First channel; 1005. Second channel; 2. Flow guide; 2001. Ups and downs section; 2002. Diverter; 2003. Flow guide; 2004. Diverter hole; 3. Mesh; 4. Mixing section; 4001. Mixing cavity; 4002. Air inlet; 4003. Clamping block; 5. Bubble outlet; 5001. Bubble outlet channel; 5002. Sink; 5003. Clamping hole. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0040] Combine the following Figures 1 to 10 , describing an embodiment of the present application.

[0041] According to an embodiment of the present application, on the one hand, a nozzle assembly is provided, including a liquid inlet portion 1, provided with a liquid inlet cavity 1001, the cavity wall of the liquid inlet cavity 1001 includes an inner cavity wall and an outer cavity wall, the outer cavity wall is arranged around the outer side of the inner cavity wall, and a gap is arranged between the two to form the liquid inlet cavity 1001, at least one undulating section 2001 is arranged on the inner cavity wall and / or the outer cavity wall, and the undulating section 2001 extends from the liquid inlet end to the liquid outlet end of the liquid inlet cavity 1001, so that at least a part of the inner cavity of the liquid inlet cavity 1001 gradually shrinks from the liquid inlet end to the liquid outlet end.

[0042] It can be understood that the outer cavity wall in the liquid inlet cavity 1001 is arranged around the outer side of the inner cavity wall, so that the entire liquid inlet cavity 1001 can form a ring-shaped or quasi-ring-shaped structure. When the mixed liquid enters the liquid inlet cavity 1001 from the liquid inlet end, the mixed liquid can be distributed along the circumference of the liquid inlet cavity 1001 and flow along its axial direction, thereby dispersing the mixed liquid and enhancing the turbulence effect of the undulating section 2001.

[0043] It should be noted that the undulating section 2001 is used to change the flow direction of the mixed liquid in the liquid inlet chamber 1001 , thereby enhancing its turbulent effect. Therefore, both the outer cavity wall and the inner cavity wall in the liquid inlet chamber 1001 can be provided with the undulating section 2001 .

[0044] In this embodiment, the nozzle assembly is provided with a liquid inlet chamber 1001 having an undulating section 2001, which not only realizes a tapered structure of at least a part of the inner cavity of the liquid inlet chamber 1001 along the direction from the liquid inlet end to the liquid outlet end, thereby enhancing the flow velocity of the mixed liquid in the liquid inlet chamber 1001, but also the undulating section 2001 can continuously change the flow direction of the mixed liquid, breaking the stable laminar flow state of the mixed liquid in the liquid inlet chamber 1001, so that the mixed liquid can be sprayed out from the liquid outlet end in a dispersed turbulent state, so that gaps are generated between water droplets, increasing the contact area between the mixed liquid and the air, increasing the amount of air carried by the mixed liquid, and improving the mixing efficiency of the mixed liquid and the air, forming a stable and high-quality foam layer, which not only improves the foaming effect and the foaming amount, but also reduces the waste of the foaming agent and reduces the production cost.

[0045] In one embodiment, the undulating section 2001 is arranged along the circumference of the inner cavity wall and / or the outer cavity wall, and the undulating section 2001 includes a first segment and a second segment, both of which are distributed along the direction from the liquid inlet end to the liquid outlet end of the liquid inlet cavity 1001, and the first segment and the second segment have one side facing the liquid inlet cavity 1001 that is oblique to the direction from the liquid inlet end to the liquid outlet end of the liquid inlet cavity 1001.

[0046] Optionally, multiple undulating sections 2001 may be arranged at intervals or continuously in the liquid inlet chamber 1001 to avoid blockage of the liquid inlet chamber 1001. Specifically, multiple undulating sections 2001 may be arranged on the inner cavity wall, multiple undulating sections 2001 may be arranged on the outer cavity wall, or multiple undulating sections 2001 may be arranged on both the inner cavity wall and the outer cavity wall, and the arrangements may be staggered.

[0047] Optionally, the undulating section 2001 may be configured as an arc-shaped structure, and the undulating section 2001 may be distributed along the circumference of the liquid inlet cavity 1001, which may further increase the turbulence effect.

[0048] Optionally, the undulating section 2001 may be configured as an arc-shaped structure, and may be spirally distributed on the inner cavity wall and / or the outer cavity wall along the axial direction of the liquid inlet cavity 1001 .

[0049] Optionally, the undulating section 2001 may further include a plurality of third segments, and the plurality of third segments and the first segment and the second segment are continuously arranged to form a broken line structure, which may further increase the turbulence effect.

[0050] In this embodiment, the undulating section 2001 is arranged along the circumference of the inner cavity wall and / or the outer cavity wall, and is divided into a first section and a second section, which are obliquely intersected with the direction from the liquid inlet end to the liquid outlet end of the liquid inlet cavity 1001. This design enables the mixed liquid to generate stronger disturbance and shear force when flowing through the undulating section 2001, thereby more effectively changing the flow direction of the mixed liquid, breaking the stable laminar flow state of the mixed liquid in the liquid inlet cavity 1001, and allowing the mixed liquid to be ejected from the liquid outlet end in a dispersed turbulent state, thereby introducing air into the mixed liquid to form a more delicate and uniform foam.

[0051] In one embodiment, the liquid inlet portion 1 is provided with a liquid inlet channel, a liquid inlet port 1002 is provided at the first axial end of the liquid inlet channel, a liquid outlet port 1003 is provided at the second axial end of the liquid inlet channel, a liquid inlet cavity 1001 is provided in the liquid inlet channel, the liquid inlet port 1002 is connected with the liquid inlet end, the liquid outlet port 1003 is connected with the liquid outlet end, and the axis of the liquid inlet channel coincides with the axis of the liquid inlet cavity 1001.

[0052] In this embodiment, by providing a liquid inlet channel that coincides with the axis of the liquid inlet chamber 1001, it is ensured that the mixed liquid can flow smoothly into the liquid inlet chamber 1001, and achieves efficient turbulence under the action of the undulating section 2001. This design simplifies the internal structure of the nozzle, improves the flow efficiency of the mixed liquid, and reduces energy consumption.

[0053] In one embodiment, a flow guide 2 is further included. The flow guide 2 is provided with a flow splitter 2002 and a flow guide 2003 . A flow splitter hole 2004 is provided on the side of the flow splitter 2002 . The flow guide 2003 is connected to the side of the flow splitter 2002 . Among them, the liquid inlet channel is divided into a first channel 1004 and a second channel 1005 in sequence along the direction from the first end to the second end thereof, the inner diameter of the first channel 1004 is larger than the inner diameter of the second channel 1005, the diverter portion 2002 is arranged in the first channel 1004, and the diverter portion 2002 is against the outer wall of the second channel 1005, the guide portion 2003 is arranged in the second channel 1005, the outer wall of the guide portion 2003 and the inner wall of the second channel 1005 form a liquid inlet cavity 1001, the undulating section 2001 is located on the outer wall of the guide portion 2003 and / or the inner wall of the second channel 1005, and the diverter hole 2004 connects the first channel 1004 and the liquid inlet cavity 1001.

[0054] It can be understood that by continuously changing the flow direction of the liquid in the liquid inlet chamber 1001, the stable laminar state of the liquid in the liquid inlet chamber 1001 is broken, avoiding the formation of a dense laminar water curtain spray, thereby forming a dispersed turbulent flow and ejecting it at the liquid outlet. The sprayed water flow state is discontinuous and non-dense, and there are gaps between each water droplet or liquid segment. These gaps allow more air to be driven and inhaled, providing sufficient air for the subsequent formation of foam.

[0055] It should be noted that the inner diameter of the first channel 1004 is larger than the inner diameter of the second channel 1005, so that a step structure can be formed between the first channel 1004 and the second channel 1005. When installing the guide member 2, the guide member 2 can be directly pushed into the first channel 1004, and the diverter portion 2002 of the guide member 2 can be abutted against the step structure. After the mixed liquid is introduced into the first channel 1004, the diverter hole 2004 can distribute the mixed liquid into the liquid inlet chamber 1001. At the same time, the diverter portion 2002 can always maintain abutment with the step structure under the action of water pressure, thereby realizing the limiting of the guide member 2.

[0056] In this embodiment, the arrangement of the flow guide 2 enables the mixed liquid to first enter the liquid inlet cavity 1001 through the flow diversion hole 2004 on the flow diversion part 2002 when flowing through the liquid inlet channel, further enhancing the dispersion effect of the mixed liquid. At the same time, the design of the flow guide 2003 also ensures the formation of the liquid inlet cavity 1001, improving the foaming effect.

[0057] In one embodiment, a plurality of flow dividing holes 2004 are arranged at intervals along the circumference of the side surface of the flow dividing portion 2002 .

[0058] In this embodiment, multiple diversion holes 2004 are arranged at intervals along the circumferential direction on the side of the diversion portion 2002, so that the mixed liquid can be more evenly dispersed into the liquid inlet chamber 1001, avoiding excessive accumulation of the mixed liquid in a local area. When used in conjunction with the undulating section 2001, the turbulent effect on the foaming liquid is further improved.

[0059] In one embodiment, it further includes a mixing part 4, a bubbling part 5 and a mesh 3. The mixing part 4 is provided with a mixing chamber 4001 and an air inlet 4002, the first end of the air inlet 4002 is connected to the mixing chamber 4001, the second end of the air inlet 4002 is connected to the outside, and the first end of the mixing chamber 4001 is connected to the liquid outlet end of the liquid inlet chamber 1001. The bubbling part 5 is provided with a bubbling channel 5001, and the bubbling channel 5001 is connected to the second end of the mixing chamber 4001. The mesh 3 is arranged between the bubbling channel 5001 and the second end of the mixing chamber 4001.

[0060] It should be noted that the mixed liquid of water and foaming agent enters the liquid inlet part 1 from the liquid inlet 1002. When flowing through the diverter part 2002 of the guide member 2, the mixed liquid is diverted by the diverter hole 2004 and enters the liquid inlet cavity 1001. When flowing through the undulating section 2001, the flow direction of the mixed liquid is changed to be toward the outside or inside, and the flow area gradually decreases, and the flow rate increases. Then at the end of the guide member 2, the flow direction quickly turns to the center, and after converging, it is ejected from the liquid outlet. The ejected mixed liquid enters the mixing chamber 4001, and the mixing chamber 4001 forms a negative pressure under the action of the high-speed liquid. The air enters the mixing chamber 4001 through the air inlet 4002 and impacts the mesh 3 with the mixed liquid to form bubbles. Under the continuous accumulation of bubbles, foam is finally formed. Finally, the foam flows to the bubble outlet through the bubble outlet channel 5001 and finally enters the ceramic water cover.

[0061] Optionally, the mesh 3 may be a steel mesh 3, and a plurality of meshes 3 may be stacked.

[0062] In this embodiment, the arrangement of the mixing part 4 and the foaming part 5 enables the mixed liquid to be further mixed evenly after the air is introduced, and forms a fine foam layer through the mesh 3. This design not only improves the foaming effect, but also makes the foam layer more stable and prolongs the duration of the foam.

[0063] In one embodiment, the direction from the first end to the second end of the mixing chamber 4001 is parallel to the direction from the liquid inlet end to the liquid outlet end of the liquid inlet chamber 1001 , and is perpendicular to the side surface of the mesh 3 .

[0064] In this embodiment, the direction from the first end to the second end of the mixing chamber 4001 is parallel to the direction from the liquid inlet end to the liquid outlet end of the liquid inlet chamber 1001, and is perpendicular to the side of the mesh 3. This design ensures that the mixed liquid can be sprayed in a certain direction in the mixing chamber 4001, and can directly hit the mesh 3 after being fully mixed with the air, thereby improving the foaming efficiency.

[0065] In one embodiment, a snap-in block 4003 is provided on the outer wall of the mixing section 4, and a sink 5002 is provided on the bubbling section 5. The sink 5002 is connected to the bubbling channel 5001. The second end of the mixing section 4 is located in the sink 5002 and abuts against the outer wall of the mixing section 4 and the inner wall of the sink 5002. A snap-in hole 5003 is provided on the inner wall of the sink 5002, and the snap-in hole 5003 is snap-fitted to the snap-in block 4003.

[0066] Optionally, a through groove may be provided on the outer wall of the sink 5002 , and the through groove is communicated with the engaging hole 5003 .

[0067] Optionally, multiple through grooves and snap-in holes 5003 are provided along the circumference of the mixing part 4. When the mixing part 4 is connected to the foaming part 5, the provision of the through grooves can expand the notch of the sink 5002, thereby facilitating the snap-in connection between the snap-in block 4003 and the snap-in hole 5003.

[0068] In this embodiment, the arrangement of the clamping block 4003 and the clamping hole 5003 enables the mixing part 4 and the bubbling part 5 to be conveniently connected together, and the connection is firm and reliable. This design simplifies the assembly process of the nozzle, improves production efficiency, and also facilitates the maintenance and replacement of the nozzle.

[0069] In one embodiment, the first end of the bubble outlet channel 5001 is located on the groove wall of the sink 5002 along the direction from the first end to the second end of the mixing chamber 4001, and the mesh 3 is arranged between the groove wall of the sink 5002 along the direction from the first end to the second end of the mixing chamber 4001 and the second end of the mixing chamber 4001.

[0070] In this embodiment, the first end of the bubble outlet channel 5001 is located on the groove wall of the sink 5002 along the direction from the first end to the second end of the mixing chamber 4001, and the mesh 3 is arranged between the groove wall of the sink 5002 along the direction from the first end to the second end of the mixing chamber 4001 and the second end of the mixing chamber 4001. This design realizes the positioning of the mesh 3, which not only simplifies the assembly process of the nozzle and improves the production efficiency, but also avoids the leakage of foam between the mixing part 4 and the bubble outlet part 5.

[0071] According to an embodiment of the present application, on the other hand, a bathroom device is provided, including a spray head assembly.

[0072] Because the bathroom device includes a spray head assembly and has the same effect as the spray head assembly, it will not be described in detail here.

[0073] Although the embodiments of the present application are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A nozzle assembly, characterized in that: include: The liquid inlet portion (1) is provided with a liquid inlet cavity (1001), the cavity wall of the liquid inlet cavity (1001) comprises an inner cavity wall and an outer cavity wall, the outer cavity wall is arranged around the outer side of the inner cavity wall, and a gap is arranged between the two to form the liquid inlet cavity (1001), at least one undulating section (2001) is arranged on the inner cavity wall and / or the outer cavity wall, and the undulating section (2001) extends from the liquid inlet end to the liquid outlet end of the liquid inlet cavity (1001), so that at least a part of the inner cavity of the liquid inlet cavity (1001) gradually shrinks from the liquid inlet end to the liquid outlet end.

2. The nozzle assembly according to claim 1, characterized in that: The undulating section (2001) is arranged along the circumference of the inner cavity wall and / or the outer cavity wall, and the undulating section (2001) comprises: The first segment and the second segment are distributed along the direction from the liquid inlet end to the liquid outlet end of the liquid inlet cavity (1001), and the first segment and the second segment have one side facing the liquid inlet cavity (1001) that is oblique to the direction from the liquid inlet end to the liquid outlet end of the liquid inlet cavity (1001).

3. The nozzle assembly according to claim 1, characterized in that: The liquid inlet portion (1) is provided with a liquid inlet channel, a liquid inlet port (1002) is provided at a first end of the liquid inlet channel along its axial direction, a liquid outlet port (1003) is provided at a second end of the liquid inlet channel along its axial direction, the liquid inlet cavity (1001) is provided in the liquid inlet channel, the liquid inlet port (1002) is communicated with the liquid inlet end, the liquid outlet port (1003) is communicated with the liquid outlet end, and the axis of the liquid inlet channel coincides with the axis of the liquid inlet cavity (1001).

4. The nozzle assembly according to claim 3, characterized in that: Also includes: A flow guide (2) is provided with a flow splitter (2002) and a flow guide (2003), a side surface of the flow splitter (2002) is provided with a flow splitter hole (2004), and the flow guide (2003) is connected to the side surface of the flow splitter (2002); The liquid inlet channel is divided into a first channel (1004) and a second channel (1005) in sequence along the direction from the first end to the second end thereof; the inner diameter of the first channel (1004) is larger than the inner diameter of the second channel (1005); the flow dividing portion (2002) is arranged in the first channel (1004), and the flow dividing portion (2002) abuts against the outer wall of the second channel (1005); the flow guiding portion (2003) is arranged in the second channel (1005); the outer wall of the flow guiding portion (2003) and the inner wall of the second channel (1005) form the liquid inlet cavity (1001); the undulating section (2001) is located on the outer wall of the flow guiding portion (2003) and / or the inner wall of the second channel (1005); and the flow dividing hole (2004) connects the first channel (1004) and the liquid inlet cavity (1001).

5. The nozzle assembly according to claim 4, characterized in that: The side surface of the diverter portion (2002) is provided with a plurality of diverter holes (2004) at intervals along its circumferential direction.

6. The nozzle assembly according to claim 1, characterized in that: Also includes: The mixing portion (4) is provided with a mixing chamber (4001) and an air inlet (4002), wherein a first end of the air inlet (4002) is in communication with the mixing chamber (4001), a second end of the air inlet (4002) is in communication with the outside, and a first end of the mixing chamber (4001) is in communication with a liquid outlet end of the liquid inlet chamber (1001); The bubble outlet portion (5) is provided with a bubble outlet channel (5001), and the bubble outlet channel (5001) is connected to the second end of the mixing chamber (4001); The mesh sheet (3) is arranged between the bubble outlet channel (5001) and the second end of the mixing chamber (4001).

7. The nozzle assembly according to claim 6, characterized in that: The direction from the first end to the second end of the mixing chamber (4001) is parallel to the direction from the liquid inlet end to the liquid outlet end of the liquid inlet chamber (1001), and is perpendicular to the side surface of the mesh sheet (3).

8. The nozzle assembly according to claim 6, characterized in that: The outer wall of the mixing section (4) is provided with a snap-fit ​​block (4003), the foaming section (5) is provided with a trough (5002), the trough (5002) is communicated with the foaming channel (5001), the second end of the mixing section (4) is located in the trough (5002) and abuts against the outer wall of the mixing section (4) and the inner wall of the trough (5002), the inner wall of the trough (5002) is provided with a snap-fit ​​hole (5003), and the snap-fit ​​hole (5003) is snap-fitted with the snap-fit ​​block (4003).

9. The nozzle assembly according to claim 8, characterized in that: The first end of the bubble outlet channel (5001) is located on the groove wall of the trough (5002) in the direction from the first end to the second end of the mixing chamber (4001), and the mesh (3) is arranged between the groove wall of the trough (5002) in the direction from the first end to the second end of the mixing chamber (4001) and the second end of the mixing chamber (4001).

10. A bathroom device, characterized in that: include: The spray head assembly according to any one of claims 1 to 9.

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