A bubbling jet, a bubbling method and a toilet

Abstract

The application discloses a kind of bubble spray head, foaming method and closestool, which includes spray head body and mixing body.The one end of spray head body is provided with water inlet, and the other end is provided with bubble outlet.Spray head body is sequentially provided with water inlet cavity, foaming cavity and bubble outlet cavity in water flow direction, water inlet is communicated with water inlet cavity, bubble outlet is communicated with bubble outlet cavity, and air inlet and liquid inlet that are communicated with foaming cavity are provided on spray head body.Mixing body includes mixing cavity, pressure water inlet for being communicated with pressure water source, foaming liquid inlet for being communicated with foaming liquid supply source and mixing liquid outlet, pressure water inlet, foaming liquid inlet and mixing liquid outlet are respectively communicated with mixing cavity, mixing liquid outlet is communicated with liquid inlet, and pressure water inlet is communicated with water inlet cavity.As pressure water inlet is communicated with water inlet cavity, water in water inlet cavity can be directly shunted a part to mixing cavity through pressure water inlet, so that water tank in prior art can be cancelled, structure is more compact, and cost is lower.

Description

Technical Field

[0001] This invention relates to the field of bathroom technology, specifically to a foaming nozzle, a foaming method, and a toilet. Background Technology

[0002] In the prior art, such as the "foaming spray device, foaming device and foaming toilet" disclosed in Chinese utility model patent CN212561781U, in the first embodiment, the foaming solution supply device 8 includes a water tank 81, a liquid storage box 84, a mixing valve 83 and a pump body 82. The water inlet of the mixing valve 83 is connected to the water tank 81, the liquid inlet channel of the mixing valve 83 is connected to the liquid storage box 84, the liquid outlet of the mixing valve 83 is connected to the input end of the pump body 82, and the output end of the pump body 82 is connected to the liquid inlet channel 14 of the foaming spray device. During operation, pump body 82 starts, air in mixing valve 83 is extracted to create negative pressure, and water and foaming liquid are drawn in through its inlet and liquid inlet channel, respectively. The water and foaming liquid are fully mixed in mixing valve 83 to form a foaming solution. This foaming solution enters pump body 82 from the mixing outlet of mixing valve 83 and is output through a pipeline to the liquid inlet channel 14 of the foaming jet body. After being accelerated and pressurized by acceleration hole 13, it enters the first chamber 11, creating a Venturi effect that creates negative pressure in the first chamber 11, drawing in external air from air intake 12. The air mixes with the foaming solution in the first chamber 11 to produce foam. In the second embodiment, the foaming solution supply device may further include a storage box, a water tank, a mixing valve, and two pump bodies. The two pump bodies are used to extract water and foaming liquid, respectively. Specifically, the input end of one pump body is connected to the water tank, and the output end is connected to the inlet of the mixing valve; the input end of the other pump body is connected to the storage box, and the output end is connected to the liquid inlet channel of the mixing valve.

[0003] In the first embodiment of the prior art described above, a water tank 81 is required to store water for diluting the foaming liquid, and a pump 82 is used to extract water from the water tank 81. This single pump 82 needs to extract not only the foaming liquid from the storage box 84 but also the water from the water tank 81 simultaneously, requiring high power and resulting in high pump costs. Furthermore, the need for a separate water tank 81 also complicates the structure and increases the overall cost of the device.

[0004] In the second embodiment of the prior art described above, two pumps are used to extract water and foaming liquid respectively, increasing the cost of one additional pump. Furthermore, the need for a separate water tank 81 complicates the structure and increases the overall cost of the device. Summary of the Invention

[0005] The present invention aims to improve the prior art by providing a foaming nozzle with a simpler and more compact structure and lower cost, as well as a foaming method and toilet using the foaming nozzle.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: According to a first aspect of the present invention, a method for generating foam in a nozzle is provided, comprising the following steps: S1. The nozzle body is constructed such that one end has a water inlet and the other end has a foam outlet. The nozzle body is provided with a water inlet chamber, a foaming chamber and a foam outlet in sequence along the water flow direction, so that the water inlet is connected to the water inlet chamber and the foam outlet is connected to the foam outlet chamber. The nozzle body is provided with an air inlet and a liquid inlet that are respectively connected to the foaming chamber. S2. The mixing body is constructed to include a mixing chamber, a pressurized water inlet for communication with a pressurized water source, a foaming liquid inlet for communication with a foaming liquid supply source, and a mixing liquid outlet. The pressurized water inlet, the foaming liquid inlet, and the mixing liquid outlet are respectively connected to the mixing chamber, and the mixing liquid outlet is connected to the liquid inlet. S3. A larger volume of water from the nozzle body's inlet chamber enters the foaming chamber through a constriction point located within the nozzle body, creating a negative pressure within the foaming chamber. Under this negative pressure, outside air is drawn into the foaming chamber through the air inlet. A smaller volume of water from the nozzle body's inlet chamber is diverted to the pressurized water inlet and then enters the mixing chamber to mix with the foaming liquid, forming a mixture. This mixture then enters the foaming chamber through the mixture outlet and the liquid inlet, mixing with the water and air in the foaming chamber to form foam. (Here, "larger volume" and "smaller volume" are relative terms, meaning that the amount of water diverted from the inlet chamber to the constriction point is relatively larger than the amount diverted to the pressurized water inlet; that is, the amount of water diverted from the inlet chamber to the pressurized water inlet is relatively smaller than the amount diverted to the constriction point.)

[0007] In some preferred or optional embodiments, the nozzle body is constructed as an integral structure assembled with the mixing body, and a diversion hole is directly opened on the side wall of the water inlet chamber, the diversion hole forming the pressurized water inlet.

[0008] According to a second aspect of the present invention, a foaming nozzle is provided, comprising a nozzle body and a mixing body. One end of the nozzle body is provided with a water inlet, and the other end with a foam outlet. The nozzle body is provided with a water inlet chamber, a foaming chamber, and a foam outlet chamber sequentially connected along the water flow direction. The water inlet is connected to the water inlet chamber, and the foam outlet is connected to the foam outlet chamber. The nozzle body is provided with an air inlet and a liquid inlet respectively connected to the foaming chamber. The mixing body includes a mixing chamber, a pressurized water inlet for connection to a pressurized water source, a foaming liquid inlet for connection to a foaming liquid supply source, and a mixed liquid outlet. The pressurized water inlet, the foaming liquid inlet, and the mixed liquid outlet are respectively connected to the mixing chamber. The mixed liquid outlet is connected to the liquid inlet, and the pressurized water inlet is connected to the water inlet chamber.

[0009] In some preferred or optional embodiments, a larger volume of water from the inlet chamber of the nozzle body enters the foaming chamber through a constriction provided within the nozzle body, thereby creating a negative pressure within the foaming chamber. This negative pressure causes outside air to be drawn into the foaming chamber through the air inlet. A smaller volume of water from the inlet chamber of the nozzle body is diverted to the pressurized water inlet.

[0010] In some preferred or optional embodiments, the minimum cross-sectional area of ​​the water flow channel from the water inlet chamber of the nozzle body to the mixing chamber of the mixing body is 0.2 mm. 2 -20mm 2 .

[0011] In some preferred or optional embodiments, the nozzle body and the mixing body are assembled as a single unit.

[0012] In some preferred or optional embodiments, the mixing body and the nozzle body are separately formed and then fixedly connected to form an integral structure, or the mixing body and the nozzle body are integrally formed; the mixing body is fixed to the outer peripheral wall of the nozzle body on the side where the liquid inlet is provided.

[0013] In some preferred or optional embodiments, a diversion hole is provided on the side wall of the water inlet chamber, and the diversion hole forms the pressurized water inlet; the mixing body is a cylindrical body extending radially along the nozzle body, the foaming liquid inlet is located at the end of the mixing body away from the nozzle body, and a guide water channel is provided in the mixing chamber, which is used to guide the water entering from the pressurized water inlet to the end of the mixing body away from the nozzle body.

[0014] In some preferred or optional embodiments, the mixing body is provided with at least one baffle plate, which is used to extend the flow path of the water entering through the pressurized water inlet and the foaming liquid entering through the foaming liquid inlet in the mixing chamber.

[0015] In some preferred or optional embodiments, the nozzle body is further provided with a guide member for guiding the water flow from the constriction towards the inner wall of the nozzle body. After being guided by the guide member, the water flow diffuses in a ring towards the inner wall of the nozzle body and continues to flow towards the bubble outlet.

[0016] According to a third aspect of the present invention, the present invention also provides a toilet, including a toilet seat, a brush ring provided on the top of the toilet seat, and a foaming nozzle provided at the inlet of the brush ring, the foaming nozzle employing a foaming method as described in any of the above claims, or the foaming nozzle employing a foaming nozzle as described in any of the above claims.

[0017] By adopting the above technical solution, the present invention can achieve at least the following technical effects: 1. This invention connects the pressure water inlet of the mixing body to the water inlet chamber of the nozzle body. In this way, a portion of the water in the water inlet chamber of the nozzle body can be directly diverted to the mixing chamber to mix with the foaming liquid in the mixing chamber to form a mixture. This eliminates the need for the water tank, the pump body for drawing water from the water tank, and the pipeline connecting the water tank and the mixing body in the prior art. The structure is more compact, saving the cost of the water tank. At the same time, it also eliminates the problem of water leakage in the pipeline that transports water from the water tank to the mixing body. The concept of this invention is very ingenious.

[0018] 2. This invention adopts an integrated structure that combines the mixing body and the nozzle body into one unit. That is, the mixing body is directly integrated onto the nozzle body, allowing the foaming nozzle to perform both mixing and foaming functions. This results in a more compact structure and more time- and labor-saving installation, eliminating the need for separate installation and fixing of the mixing body and the nozzle body. Furthermore, designing the mixing body and the nozzle body as a fixedly connected integrated structure eliminates the need for pipes for fluid communication, resulting in better fluid sealing.

[0019] 3. By incorporating a guide within the nozzle body to direct the water flow from the constricted nozzle toward the inner wall of the nozzle body, the water flow, after being guided by the guide, diffuses in a ring shape toward the inner wall of the nozzle body and continues to flow toward the foam outlet. The guide disperses the central columnar water flow in all directions, thus enabling it to carry the fluid (including liquid and gas) in the foaming chamber forward more fully, especially the fluid near the inner wall of the foaming chamber. This makes it easier to create negative pressure in the foaming chamber, resulting in a greater ability to create negative pressure and thus easier to draw in outside air, significantly improving the foaming effect.

[0020] 4. At least one baffle is installed in the mixing body. The baffle can extend the flow path of the water entering from the pressurized water inlet and the foaming liquid entering from the foaming liquid inlet in the mixing chamber, thereby further extending the mixing stroke of the two liquids and improving the mixing effect. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional assembly diagram of the foaming nozzle according to the first embodiment of the present invention; Figure 2 This is an exploded perspective view of the foaming nozzle according to the first embodiment of the present invention; Figure 3 This is a cross-sectional view of the foaming nozzle according to the first embodiment of the present invention; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is one of the internal structure schematic diagrams of the first embodiment of the present invention; Figure 6 This is a second schematic diagram of the internal structure of the first embodiment of the present invention; Figure 7 This is a simplified schematic diagram of the foaming process of the foaming nozzle according to the first embodiment of the present invention; Figure 8 This is a cross-sectional view of the foaming nozzle according to the second embodiment of the present invention.

[0023] The attached figures are labeled as follows: 1- Nozzle body; 11- Water inlet; 12- Foam outlet; 13- Water inlet chamber; 14- Foaming chamber; 15- Foam outlet chamber; 16- Air inlet; 17- Liquid inlet; 18- Narrowing; 19- Flow guide; 191- Flow guide surface; 2-Mixing body; 21-Mixing chamber; 211-First mixing section; 212-Second mixing section; 213-Third mixing section; 22-Pressurized water inlet; 23-Foaming liquid inlet; 24-Mixed liquid outlet; 25-Drainage channel; 3-Baffle plate; 31-Water passage hole; 4-Check valve; 41-Spring; 42-Valve plate; 5-Reservoir box; 6-Liquid pump. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] The terms “top,” “bottom,” “upper,” “lower,” “left,” “right,” “front,” “back,” and similar expressions used in this document are for illustrative purposes only. The terms “first,” “second,” etc., are only used to distinguish different objects and should not be construed as indicating or implying relative importance or the quantity, specific order, or primary or secondary relationship of the indicated technical features. The term “several” means one or more, and “multiple” means two or more, unless otherwise explicitly specified. First Embodiment

[0026] Combination Figures 1 to 7 The first preferred embodiment of the present invention provides a foaming nozzle, comprising a nozzle body 1 and a mixing body 2. One end of the nozzle body 1 has a water inlet 11, and the other end has a foam outlet 12. The nozzle body 1 has a water inlet chamber 13, a foaming chamber 14, and a foam outlet chamber 15 connected sequentially along the water flow direction. The water inlet 11 communicates with the water inlet chamber 13, and the foam outlet 12 communicates with the foam outlet chamber 15. The nozzle body 1 has an air inlet 16 and a liquid inlet 17 respectively connected to the foaming chamber 14. The mixing body 2 includes a mixing chamber 21, a pressurized water inlet 22 for communication with a pressurized water source, a foaming liquid inlet 23 for communication with a foaming liquid supply source, and a mixing liquid outlet 24. The pressurized water inlet 22, the foaming liquid inlet 23, and the mixing liquid outlet 24 are respectively connected to the mixing chamber 21, the mixing liquid outlet 24 is connected to the liquid inlet 17, and the pressurized water inlet 22 is connected to the water inlet chamber 13.

[0027] See Figure 7 The foaming liquid supply source includes a storage box 5 and a pump 6. The pump 6 draws the foaming liquid from the storage box 5 to the foaming liquid inlet 23, and then enters the mixing chamber 21 through the foaming liquid inlet 23.

[0028] This invention connects the pressure water inlet 22 of the mixing body 2 to the water inlet chamber 13 of the nozzle body 1. In this way, a portion of the water in the water inlet chamber 13 of the nozzle body 1 can be directly diverted to the mixing chamber 21 of the mixing body 2 to mix with the foaming liquid in the mixing chamber 21 to form a mixture. This eliminates the need for the water tank, the pump body for drawing water from the water tank, and the pipeline connecting the water tank and the mixing body in the prior art. The structure is more compact, saving the cost of the water tank. At the same time, it also eliminates the problem of water leakage in the pipeline that transports water from the water tank to the mixing body. The concept of this invention is very ingenious.

[0029] A larger volume of water from the inlet chamber 13 of the nozzle body 1 enters the foaming chamber 14 after passing through the constriction 18 located within the nozzle body 1, creating a negative pressure within the foaming chamber 14. This negative pressure then draws outside air into the foaming chamber 14 through the air inlet 16. A smaller volume of water from the inlet chamber 13 of the nozzle body 1 is diverted to the pressurized water inlet 22. Here, "a larger volume" and "a smaller volume" are relative terms, meaning that the amount of water diverted from the inlet chamber 13 to the constriction 18 is relatively larger than the amount diverted to the pressurized water inlet 22; that is, the amount of water diverted from the inlet chamber 13 to the pressurized water inlet 22 is relatively smaller than the amount diverted to the constriction 18.

[0030] Preferably, the minimum cross-sectional area of ​​the water flow channel from the water inlet chamber 13 of the nozzle body 1 to the mixing chamber 21 of the mixing body 2 is 0.2 mm. 2 -20mm 2 For example, it could be 0.2mm 2 0.5mm 2 1mm 2 3mm 2 5mm 2 7mm 2 9mm 2 11mm 2 13mm 2 15mm 2 17mm 2 19mm 2 20mm 2 Etc. See also. Figure 3 and Figure 4 In this embodiment, the minimum cross-sectional area of ​​the water flow channel from the water inlet chamber 13 of the nozzle body 1 to the mixing chamber 21 of the mixing body 2 is the location of the pressure water inlet 22, and the diameter of this location is D. The preferred value of D is approximately 0.5mm-5mm.

[0031] Preferably, the mixing body 2 and the nozzle body 1 are assembled into a single integrated structure. That is, the mixing body 2 is directly integrated onto the nozzle body 1, allowing the foaming nozzle to perform both mixing and foaming functions. This results in a more compact structure, saves time and effort during installation, and eliminates the need for separate installation and fixing of the mixing body 2 and the nozzle body 1. Furthermore, designing the mixing body 2 and the nozzle body 1 as a fixedly connected integrated structure eliminates the need for fluid communication via pipes, resulting in better fluid sealing.

[0032] In this embodiment, the mixing body 2 and the nozzle body 1 are integrally formed. In other embodiments, the mixing body 2 and the nozzle body 1 can also be formed independently and then fixedly connected as an integral structure by means of threaded connection, snap-fit ​​connection, or adhesive bonding.

[0033] In this embodiment, the mixing body 2 is fixed to the outer peripheral wall of the nozzle body 1 on the side where the liquid inlet 17 is located. A diversion hole is provided on the side wall of the water inlet chamber 13, directly forming the pressurized water inlet 22. It is understood that in other embodiments not shown, the diversion hole and the pressurized water inlet 22 can also be separately provided, connected by a water channel, i.e., the diversion hole is connected to the pressurized water inlet 22 through a water channel. The mixing body 2 is a cylindrical body extending radially along the nozzle body 1. The foaming liquid inlet 23 is located at the end of the mixing body 2 away from the nozzle body 1. This allows the foaming liquid entering the mixing body 2 to have a longer mixing stroke, improving the mixing effect. Similarly, to allow the water entering the mixing body 2 to have a longer mixing stroke, a guide water channel 25 is provided in the mixing chamber 21. The guide water channel 25 is used to guide the water entering through the pressurized water inlet 22 to the end of the mixing body 2 away from the nozzle body 1, thereby making the water and foaming liquid mix more thoroughly.

[0034] In some embodiments, preferably, at least one baffle 3 is provided in the mixing body 2. The baffle 3 is used to extend the flow path of the water entering from the pressurized water inlet 22 and the foaming liquid entering from the foaming liquid inlet 23 in the mixing chamber 21, thereby further extending the mixing stroke of the two liquids and improving the mixing effect.

[0035] More preferably, multiple baffles 3 can be provided, and the multiple baffles 3 are stacked at intervals in the mixing chamber 21, such as... Figure 2 and Figure 3 As shown, this embodiment has two baffles 3. Each baffle 3 has a water passage hole 31 at its end. The water passage holes 31 on adjacent baffles 3 are staggered to create an S-shaped water flow path within the mixing chamber 21. The two baffles 3 divide the mixing chamber 21 into a first mixing section 211, a second mixing section 212, and a third mixing section 213. The water and foaming liquid are mixed sequentially through the first mixing section 211, the second mixing section 212, and the third mixing section 213 before flowing out from the mixed liquid outlet 24, thus achieving thorough mixing of water and foaming liquid.

[0036] To prevent the backflow of the foaming liquid entering the mixing body 2, in this embodiment, a one-way valve 4 is provided at the foaming liquid inlet 23 to control the one-way entry of the foaming liquid into the mixing chamber 21. The one-way valve 4 can adopt a known existing one-way valve structure, such as a duckbill valve or a spring valve. In this embodiment, a known spring valve including a spring and a valve plate is specifically used. Specifically, the one-way valve 4 includes a spring 41 and a valve plate 42. The spring 41 elastically abuts the valve plate 42 against the foaming liquid inlet 23. The foaming liquid output by the pump 6 can overcome the elastic force of the spring 41 to push open the valve plate 42 and enter the foaming liquid inlet 23. In other embodiments, it is understood that a one-way valve 4 controlling the one-way flow of water into the mixing chamber 21 can also be provided at the pressure water inlet 22.

[0037] In this embodiment, the mixture outlet 24 is directly connected to the inlet 17. In other embodiments, the mixture outlet 24 may also be connected to the inlet 17 through a flow channel (not shown), or the mixture outlet 24 and the inlet 17 may be the same port, etc.

[0038] The structure of the nozzle body 1 can adopt any existing known structure, as long as it can achieve the mixing and foaming of air with the mixture (a liquid composed of water and foaming liquid) delivered to the nozzle body 1. In this embodiment, a constriction 18 for accelerating water flow is provided inside the nozzle body 1 between the water inlet chamber 13 and the foaming chamber 14. An air inlet 16 and a liquid inlet 17 are provided on the side wall of the nozzle body 1 outside the constriction 18. The position of the liquid inlet 17 corresponds to that of the mixing body 2, and the air inlet 16 is located outside the mixing body 2. Second Embodiment

[0039] See Figure 8 The main difference between the aerating nozzle of the second preferred embodiment of the present invention and the first embodiment is that the first embodiment does not have a flow guide 19. In this embodiment, the nozzle body 1 is further provided with a flow guide 19 for guiding the water flow from the constriction 18 toward the inner wall of the nozzle body 1. After being guided by the flow guide 19, the water flow diffuses in a ring toward the inner wall of the nozzle body 1 and continues to flow toward the bubble outlet 12. By providing a guide member 19 inside the nozzle body 1 to guide the water flow from the constriction 18 toward the inner wall of the nozzle body 1, the water flow, after being guided by the guide member 19, diffuses in a ring toward the inner wall of the nozzle body 1 and continues to flow toward the foam outlet 12. The guide member 19 diffuses the central columnar water flow to the surrounding areas, thereby enabling it to carry the fluid (including liquid and gas) in the foaming chamber 17 forward more fully, especially the fluid near the inner wall of the foaming chamber 17. This makes it easier to form a negative pressure in the foaming chamber 17, i.e., the ability to form a negative pressure is greater, thus making it easier to draw in outside air and greatly improving the foaming effect.

[0040] Preferably, in this embodiment, the constriction 18 and the guide 19 are both centrally located in the radial direction of the nozzle body 1, so that the water flow is more uniformly diffused, the negative pressure formed in the foaming chamber 14 is more stable, and the circumferential position of the air inlet 16 on the side wall of the nozzle body 1 can be arbitrarily selected as needed without affecting the air intake effect.

[0041] Preferably, in this embodiment, the nozzle body 1 has a water inlet 11 at its rear end and a bubble outlet 12 at its front end. The guide member 19 has a guide surface 191. Water flowing along the guide surface 191 leaves the front end of the guide surface 191 and diffuses outwards and forwards towards the inner wall of the nozzle body 1. The front end of the guide surface 191 is closest to the inner wall of the nozzle body 1 in the radial direction. The rear end of the guide member 19 is located at or near the constriction 18 in the axial direction of the nozzle body 1, which allows for more timely guidance of the water flowing out of the constriction 18, resulting in better guiding and foaming effects.

[0042] In this embodiment, the guiding surface 191 is a conical surface, and the diameter of the conical surface gradually increases along the direction of water flow. It is understood that the guiding surface 191 can also be an arc surface, a sphere, or other shapes, without limitation, as long as it can guide the water flow radially outward.

[0043] In this embodiment, the front end of the guide surface 191 and the constriction 18 are both located downstream of the air inlet 16. In this way, the forward-flowing water will not flow to the air inlet 16 and occupy the air intake flow section of the air inlet 16, thereby affecting the air intake effect. Third Embodiment

[0044] See also Figures 1-8 The present invention also provides a foaming method for a nozzle, using a foaming nozzle of any of the above embodiments, specifically including the following steps: S1. The nozzle body 1 is constructed such that one end has a water inlet 11 and the other end has a foam outlet 12. The nozzle body 1 is provided with a water inlet chamber 13, a foaming chamber 14 and a foam outlet 15 connected in sequence along the water flow direction, so that the water inlet 11 is connected to the water inlet chamber 13 and the foam outlet 12 is connected to the foam outlet 15. The nozzle body 1 is provided with an air inlet 16 and a liquid inlet 17 that are respectively connected to the foaming chamber 14. S2. The mixing body 2 is constructed to include a mixing chamber 21, a pressurized water inlet 22 for communication with a pressurized water source, a foaming liquid inlet 23 for communication with a foaming liquid supply source, and a mixing liquid outlet 24. The pressurized water inlet 22, the foaming liquid inlet 23, and the mixing liquid outlet 24 are respectively connected to the mixing chamber 21, and the mixing liquid outlet 24 is connected to the liquid inlet 17. S3. A larger volume of water from the inlet chamber 13 of the nozzle body 1 flows through the constriction 18 located inside the nozzle body 1 and enters the foaming chamber 14 to create a negative pressure inside the foaming chamber 14. Under the action of the negative pressure, outside air is drawn into the foaming chamber 14 through the air inlet 16. A smaller volume of water from the inlet chamber 13 of the nozzle body 1 is diverted to the pressure water inlet 22 and then enters the mixing chamber 21 to mix with the foaming liquid in the mixing chamber 21 to form a mixture. The mixture enters the foaming chamber 14 through the mixture outlet 24 and the liquid inlet 17 and mixes with the water and air in the foaming chamber 14 to form foam.

[0045] In some embodiments, the nozzle body 1 is constructed as an integral structure assembled with the mixing body 2, and a diversion hole is directly opened on the side wall of the water inlet chamber 13, which directly forms the pressurized water inlet 22.

[0046] The above method involves diverting a small amount of water from the inlet chamber of the nozzle body to the pressurized water inlet, which then enters the mixing chamber to mix with the foaming liquid in the mixing chamber to form a mixture. The mixture then enters the foaming chamber through the mixture outlet and the liquid inlet, where it mixes with the water and air to form foam. This eliminates the need for the water tank, the pump that draws water from the tank, and the pipeline connecting the water tank and the mixing body, resulting in a more compact structure and saving on the cost of the water tank. It also avoids the problem of water leakage in the pipeline that transports water from the tank to the mixing body. The design is ingenious. Fourth embodiment

[0047] In addition, the present invention also provides a toilet, including a toilet seat (not shown), a brush ring (not shown) on the top of the toilet seat, and a foaming nozzle at the inlet of the brush ring. The foaming nozzle is any of the foaming nozzles described above, or the foaming nozzle uses any of the foaming methods described above.

[0048] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions that fall within the scope of the present invention are within the scope of protection of the present invention.

Claims

1. A method for generating bubbles with a nozzle, characterized in that, Includes the following steps: S1. The nozzle body is constructed such that one end has a water inlet and the other end has a foam outlet. The nozzle body is provided with a water inlet chamber, a foaming chamber and a foam outlet in sequence along the water flow direction, so that the water inlet is connected to the water inlet chamber and the foam outlet is connected to the foam outlet chamber. The nozzle body is provided with an air inlet and a liquid inlet that are respectively connected to the foaming chamber. S2. The mixing body is constructed to include a mixing chamber, a pressurized water inlet for communication with a pressurized water source, a foaming liquid inlet for communication with a foaming liquid supply source, and a mixing liquid outlet. The pressurized water inlet, the foaming liquid inlet, and the mixing liquid outlet are respectively connected to the mixing chamber, and the mixing liquid outlet is connected to the liquid inlet. S3. A larger volume of water from the nozzle body's inlet chamber flows through a constriction opening inside the nozzle body into the foaming chamber, creating a negative pressure within the foaming chamber. Under this negative pressure, outside air is drawn into the foaming chamber through the air inlet. A smaller volume of water from the nozzle body's inlet chamber is diverted to the pressurized water inlet and then enters the mixing chamber to mix with the foaming liquid in the mixing chamber, forming a mixture. The mixture then enters the foaming chamber through the mixture outlet and the inlet, mixing with the water and air in the foaming chamber to form foam.

2. The foaming method for the nozzle according to claim 1, characterized in that, The nozzle body is constructed as an integral structure assembled with the mixing body, and a diversion hole is directly opened on the side wall of the water inlet chamber, which forms the pressurized water inlet.

3. A foaming nozzle, comprising a nozzle body and a mixing body, wherein one end of the nozzle body is provided with a water inlet and the other end with a foam outlet, the nozzle body having a water inlet chamber, a foaming chamber and a foam outlet chamber sequentially connected along the water flow direction, the water inlet communicating with the water inlet chamber, the foam outlet communicating with the foam outlet chamber, and the nozzle body having an air inlet and a liquid inlet respectively communicating with the foaming chamber; the mixing body comprising a mixing chamber, a pressurized water inlet for communicating with a pressurized water source, a foaming liquid inlet for communicating with a foaming liquid supply source, and a mixed liquid outlet, the pressurized water inlet, the foaming liquid inlet and the mixed liquid outlet respectively communicating with the mixing chamber, and the mixed liquid outlet communicating with the liquid inlet, characterized in that, The pressurized water inlet is connected to the water inlet chamber.

4. The foaming nozzle according to claim 3, characterized in that, A larger volume of water from the inlet chamber of the nozzle body enters the foaming chamber through a constriction located within the nozzle body, creating a negative pressure within the foaming chamber. This negative pressure causes outside air to be drawn into the foaming chamber through the air inlet. A smaller volume of water from the inlet chamber of the nozzle body is diverted to the pressurized water inlet.

5. The foaming nozzle according to claim 4, characterized in that, The minimum cross-sectional area of ​​the water flow channel from the water inlet chamber of the nozzle body to the mixing chamber of the mixing body is 0.2 mm. 2 -20mm 2 .

6. The foaming nozzle according to claim 3, characterized in that, The nozzle body and the mixing body are assembled into a single structure.

7. The foaming nozzle according to claim 6, characterized in that, The mixing body and the nozzle body are separately formed and then fixedly connected to form an integral structure, or the mixing body and the nozzle body are integrally formed. The mixing body is fixed to the outer peripheral wall of the nozzle body on the side where the liquid inlet is located.

8. The foaming nozzle according to claim 6, characterized in that, A diversion hole is provided on the side wall of the water inlet chamber, and the diversion hole forms the pressure water inlet; the mixing body is a cylinder extending in the radial direction of the nozzle body, the foaming liquid inlet is located at the end of the mixing body away from the nozzle body, and a diversion channel is provided in the mixing chamber to divert the water entering from the pressure water inlet to the end of the mixing body away from the nozzle body.

9. The foaming nozzle according to claim 3, characterized in that, The mixing body is provided with at least one baffle plate, which is used to extend the flow path of the water entering from the pressurized water inlet and the foaming liquid entering from the foaming liquid inlet in the mixing chamber.

10. The foaming nozzle according to claim 4, characterized in that, The nozzle body is also provided with a guide member for guiding the water flow from the constriction towards the inner wall of the nozzle body. After being guided by the guide member, the water flow diffuses in a ring towards the inner wall of the nozzle body and continues to flow towards the bubble outlet.

11. A toilet, comprising a toilet seat, wherein a brush ring is provided on the top of the toilet seat, and a foaming nozzle is provided at the inlet of the brush ring, characterized in that, The foaming nozzle employs the foaming method as described in claim 1 or 2, or the foaming nozzle employs the foaming nozzle as described in any one of claims 3-10.

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