Foaming device, flushing mechanism and toilet

Abstract

This application discloses a foaming device, a flushing mechanism, and a toilet. The foaming device includes a mixing section and a foaming section. The mixing section includes at least a first-stage mixing section and a second-stage mixing section, with the first-stage mixing section connected to the second-stage mixing section. The mixed liquid vibrates with air in the foaming section to generate foam and is then sprayed out. The foaming section includes at least a first-stage foaming section and a second-stage foaming section, with the second-stage mixing section connected to the first-stage foaming section, and the first-stage foaming section connected to the second-stage foaming section. Water and foaming liquid are mixed in the first-stage mixing section, and unmixed water and foaming liquid can continue to mix in the second-stage mixing section, which improves the mixing effect of foaming liquid and water. The resulting mixed liquid is foamed in the first-stage foaming section, and the unfoamed mixed liquid can continue to foam in the second-stage foaming section. This multi-stage mixing and foaming reduces the consumption of foaming liquid during foaming and increases the foaming rate.

Description

Technical Field

[0001] This application relates to the field of foaming equipment technology, and in particular to a foaming device, a flushing mechanism, and a toilet. Background Technology

[0002] Foam shield technology is widely used in toilets. Toilets using this technology will spray a burst of foam before water is sprayed, reducing water splashing onto the buttocks.

[0003] The principle of foaming is to form foam by mixing and vibrating a foaming liquid, water, and air. However, related technologies suffer from problems such as high foaming liquid consumption and low foaming rate. Utility Model Content

[0004] In view of the above problems, this application provides a foaming device, a flushing mechanism and a toilet. The foaming device is provided with a multi-stage mixing section and a multi-stage foaming section, which can reduce the consumption of foaming liquid during foaming and increase the foaming rate.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is to provide a foaming device, which includes a mixing section and a foaming section. The mixing section is used to mix water and foaming liquid to obtain a mixture. The mixing section includes at least a first-stage mixing section and a second-stage mixing section, with the first-stage mixing section connected to the second-stage mixing section. The mixture is sprayed out after being vibrated with air in the foaming section to generate foam. The foaming section includes at least a first-stage foaming section and a second-stage foaming section, with the second-stage mixing section connected to the first-stage foaming section and the first-stage foaming section connected to the second-stage foaming section. The second-stage foaming section has a spraying structure.

[0006] Water and foaming liquid are mixed in the first mixing section. Unmixed water and foaming liquid can continue to mix in the second mixing section, which can improve the mixing effect of foaming liquid and water. The resulting mixture is foamed in the first foaming section, and the unfoamed mixture can continue to foam in the second foaming section. In this way, the amount of foaming liquid consumed during foaming can be reduced and the foaming rate can be increased through multi-stage mixing and multi-stage foaming.

[0007] In one possible implementation, the mixing section further includes a water inlet section connected to the first-stage mixing section; the foaming device further includes a foaming liquid inlet section having a foaming liquid accommodating cavity; the foaming liquid inlet section has a first type of flow channel and a second type of flow channel, the foaming liquid accommodating cavity being connected to the water inlet section through the first type of flow channel, and the foaming liquid accommodating cavity being connected to the first-stage mixing section through the second type of flow channel.

[0008] As described above, water can enter the foaming liquid container cavity through the first type of flow channel. The foaming liquid can be initially mixed and diluted with water in the foaming liquid container cavity before entering the mixing section through the second type of flow channel for further mixing, thereby further improving the mixing effect of foaming liquid and water.

[0009] In one possible implementation, the first-stage mixing section has an oscillating cavity connected to the inlet section and perpendicular to the liquid flow direction, the size of which is smaller than the size of the flow channel in the inlet section; specifically, the oscillating cavity also has a first non-straight flow channel; the second-stage mixing section has a second-stage mixing cavity connected to the oscillating cavity, the second-stage mixing cavity forming a second non-straight flow channel; specifically, the second non-straight flow channel is a spiral flow channel.

[0010] As mentioned above, the oscillation chamber is provided with a first non-straight flow channel, which can improve the mixing effect of foaming liquid and water in the oscillation chamber.

[0011] In one possible implementation, along the liquid flow direction, the size of the outlet of the second-stage mixing chamber gradually decreases; the first-stage foaming section has a first-stage foaming chamber, the outlet of the second-stage mixing chamber is provided corresponding to the first-stage foaming chamber, and a first air intake gap is provided between the outlet and the cavity wall of the second-stage mixing chamber; the second-stage foaming section has a second-stage foaming chamber, and a second air intake gap is formed in the cavity wall of the second-stage foaming chamber.

[0012] As mentioned above, the outlet size gradually decreases, and the flow velocity of the mixture gradually increases when it flows out of the second-stage mixing chamber. According to the Bernoulli effect, the pressure will decrease, which allows air to be drawn into the foaming section through the first air intake gap for foaming. There is no need to set up an additional air pump to draw in air, which reduces the volume of the foaming device. In addition, the air pump is noisy, and eliminating the need to set up an air pump also reduces the noise of the foaming process.

[0013] In one possible implementation, the foaming device includes: a first cylindrical body, the first cylindrical body including a first part and a second part, the first part being connected to the second part; a second cylindrical body, the first part being sleeved on the second cylindrical body, and a first air intake gap being formed between the first part and the cylindrical wall of the second cylindrical body, the second part including the mixing part, the second cylindrical body including the first-stage foaming chamber; the water inlet section and the foaming liquid inlet section are an integrated structure and are disposed at one end of the first cylindrical body.

[0014] The above can form the first intake gap.

[0015] In one possible implementation, the first-stage foaming cavity is provided with a first mesh structure; the second-stage foaming cavity is provided with a second mesh structure.

[0016] As described above, the collision of air and liquid with the network structure causes oscillations, generating foam. This foam can also form fine, high-quality foam.

[0017] In one possible implementation, the foaming section further includes a nozzle movably connected to one end of the first section.

[0018] As mentioned above, the nozzle angle can be flexibly adjusted.

[0019] In one possible implementation, the second mesh structure is disposed inside the nozzle, the second suction gap is located in the connection area between the nozzle and the first part, and the size of the inlet of the nozzle decreases along the liquid flow direction.

[0020] As described above, the size of the inlet of the nozzle is reduced and the flow rate is increased, allowing air to be drawn in through the second suction gap for foaming.

[0021] To solve the above-mentioned technical problems, another technical solution adopted in this application is to provide a flushing mechanism, which includes the above-mentioned foaming device.

[0022] In the aforementioned flushing mechanism, water and foaming liquid are mixed in the first mixing section, and unmixed water and foaming liquid can continue to mix in the second mixing section, which can improve the mixing effect of foaming liquid and water. The resulting mixture is foamed in the first foaming section, and the unfoamed mixture can continue to foam in the second foaming section. Through multi-stage mixing and multi-stage foaming, the amount of foaming liquid consumed during foaming can be reduced, and the foaming rate can be increased.

[0023] To solve the above-mentioned technical problems, another technical solution adopted in this application is to provide a toilet that includes the above-mentioned flushing mechanism.

[0024] In the toilet described above, water and foaming liquid are mixed in the first mixing stage. Unmixed water and foaming liquid can continue to mix in the second mixing stage, which can improve the mixing effect of foaming liquid and water. The resulting mixture is foamed in the first foaming stage, and the unfoamed mixture can continue to foam in the second foaming stage. Through multi-stage mixing and multi-stage foaming, the amount of foaming liquid consumed during foaming can be reduced, and the foaming rate can be increased.

[0025] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above contents and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of a foaming apparatus according to one or more embodiments of this application;

[0028] Figure 2 for Figure 1 Exploded view of the mixing section and foaming section in the foaming device;

[0029] Figure 3 for Figure 1 Exploded view of the water inlet section and foaming liquid inlet section of the foaming device;

[0030] Figure 4 for Figure 1 A schematic diagram of the structure of the nozzle and the first cylindrical body in the foaming device;

[0031] Figure 5 for Figure 1 A schematic diagram of the structure of the first cylindrical body and the second cylindrical body in the foaming device;

[0032] Figure 6 for Figure 1 A schematic diagram of the water inlet section and the foaming liquid inlet section of the foaming device from another perspective.

[0033] Among them, 10 is a foaming device; 11 is a mixing section; 111 is a first-stage mixing section; 1111 is an oscillation chamber; 112 is a second-stage mixing section; 1121 is a second-stage mixing chamber; 1122 is a second non-straight flow channel; 1123 is an outlet; 113 is a water inlet section; 12 is a foaming section; 121 is a first-stage foaming section; 1211 is a first-stage foaming chamber; 122 is a second-stage foaming section; 1221 is a second-stage foaming chamber; 13 is a foaming liquid inlet section; and 131 is a foaming liquid container. 132. First type of flow channel; 133. Second type of flow channel; 141. First suction gap; 142. Second suction gap; 151. First mesh structure; 152. Second mesh structure; 123. Nozzle head; 1231. Inlet; 161. Universal nut; 162. First cylindrical body; 163. Second cylindrical body; 164. Nozzle fixing nut; 165. Liquid inlet head; 166. Liquid inlet section; 167. One-way guide; 168. Locking protrusion; 169. Locking groove. Detailed Implementation

[0034] The embodiments of the technical solution of this application will be described in detail below. The following embodiments are only used to illustrate the technical solution of this application more clearly, and are therefore only examples, and should not be used to limit the scope of protection of this application.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0036] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, unless otherwise explicitly specified, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0037] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0038] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0039] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0040] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0041] Currently, foaming processes suffer from problems such as high consumption of foaming liquid and low foaming rate.

[0042] Based on the above considerations, this application proposes a foaming device, a flushing mechanism, and a toilet. The foaming device, through multi-stage mixing and multi-stage foaming, can reduce the consumption of foaming liquid and increase the foaming rate.

[0043] Please refer to Figures 1 to 6 , Figure 1 This is a schematic diagram of the structure of a foaming apparatus according to one or more embodiments of this application; Figure 2 for Figure 1 Exploded view of the mixing section and foaming section in the foaming device;

[0044] Figure 3 for Figure 1 Exploded view of the water inlet section and foaming liquid inlet section of the foaming device; Figure 4 for Figure 1 A schematic diagram of the structure of the nozzle and the first cylindrical body in the foaming device; Figure 5 for Figure 1 A schematic diagram of the structure of the first cylindrical body and the second cylindrical body in the foaming device; Figure 6 for Figure 1 A schematic diagram of the water inlet section and the foaming liquid inlet section of the foaming device from another perspective.

[0045] In some embodiments, the foaming device 10 includes a mixing section 11 and a foaming section 12. The mixing section 11 is used to mix water and foaming liquid to obtain a mixture. The mixing section 11 includes at least a first-stage mixing section 111 and a second-stage mixing section 112. The first-stage mixing section 111 is connected to the second-stage mixing section 112. The mixture is sprayed out after it vibrates with air in the foaming section 12 to generate foam. The foaming section 12 includes at least a first-stage foaming section 121 and a second-stage foaming section 122. The second-stage mixing section 112 is connected to the first-stage foaming section 121, and the first-stage foaming section 121 is connected to the second-stage foaming section 122. The second-stage foaming section 122 has a spraying structure (not shown).

[0046] The foaming principle is to form foam by mixing and oscillating water, air, and foaming liquid. In this embodiment, to achieve sufficient foaming, the foaming device 10 first mixes the foaming liquid and water in the mixing section 11 to obtain a mixture, and then oscillates the mixture with air in the foaming section 12, which can improve the foaming effect.

[0047] In this embodiment, the mixing unit 11 has two mixing stages, including a first mixing stage 111 and a second mixing stage 112. This arrangement allows the foaming liquid and water to be mixed twice, resulting in a more thorough mixing of the foaming liquid and water and obtaining a high-quality mixture. In other embodiments, the mixing unit 11 may also have a third mixing stage, a fourth mixing stage, or more mixing stages to allow for more repeated mixing of the foaming liquid and water, resulting in a more fully combined mixture. When the mixing unit 11 has a greater number of mixing stages, these additional mixing stages can be sequentially connected between the first mixing stage 111 and the second mixing stage 112. Furthermore, the principles by which the first mixing stage 111 and the second mixing stage 112 mix the foaming liquid and water may be the same or different. The foaming liquid and water can be mixed by forming a flow channel with a sudden size change in the mixing section, or the foaming liquid and water can be mixed by forming a turbulent flow in the mixing section. The mixing part 11 does not specifically limit the way it mixes water and foaming liquid.

[0048] In this embodiment, the foaming section 12 has two foaming stages, including a first-stage foaming stage 121 and a second-stage foaming stage 122. This arrangement allows the mixture to be agitated and foamed twice with air, improving the foaming rate and making the foaming liquid foam more fully. In other embodiments, the foaming section 12 may also have more mixing stages, such as a third-stage foaming stage and a fourth-stage foaming stage, to allow for more agitation and foaming of the mixture. When the foaming section 12 has other numbers of foaming stages, these other foaming stages can be sequentially connected between the first-stage foaming stage 121 and the second-stage foaming stage 122.

[0049] As described above, water and foaming liquid are mixed in the first mixing section 111. Unmixed water and foaming liquid can continue to mix in the second mixing section 112, which can improve the mixing effect of foaming liquid and water. The resulting mixture is foamed in the first foaming section 121, and the unfoamed mixture can continue to foam in the second foaming section 122. In this way, the consumption of foaming liquid during foaming can be reduced and the foaming rate can be increased through multi-stage mixing and multi-stage foaming.

[0050] In some embodiments, the mixing section 11 further includes a water inlet section 113, which is connected to the first mixing section 111; the foaming device 10 further includes a foaming liquid inlet section 13, which has a foaming liquid receiving cavity 131; the foaming liquid inlet section 13 has a first type of flow channel 132 and a second type of flow channel 133, the foaming liquid receiving cavity 131 is connected to the water inlet section 113 through the first type of flow channel 132, and the foaming liquid receiving cavity 131 is connected to the first mixing section 111 through the second type of flow channel 133.

[0051] One end of the water inlet section 113 is connected to the first-stage mixing section 111, and the other end of the water inlet section 113 can be connected to water supply devices such as water pumps and water pipes. Water supplied from the water inlet section 113 enters the mixing section 11 to mix with the foaming liquid. The foaming liquid inlet section 13 can be connected to a foaming liquid supply device, specifically a liquid pump. The foaming liquid is temporarily stored in the foaming liquid receiving cavity 131. In this embodiment, the foaming liquid inlet section 13 has a first type of flow channel 132 and a second type of flow channel 133. Before water enters the mixing section 111 from the water inlet section 113, the water is diverted. Some water enters the foaming liquid receiving cavity 131 through the first type of flow channel 132 to undergo initial mixing and dilution with the foaming liquid. This allows the pre-mixed and diluted foaming liquid to then fully mix with the water in the mixing section 11, thereby further improving the mixing effect of the foaming liquid and water. Furthermore, the number of first-type flow channels 132 can be one or more, and the number of second-type flow channels 133 can also be one or more. In some preferred embodiments, the foaming liquid inlet section 13 includes an inlet section 166 and an inlet head 165. The inlet section 166 is connected to the water inlet section 113 through the first-type flow channel 132 and to the first-stage mixing section 111 through the second-type flow channel 133. The inlet head 165 is detachably fixed to the inlet section 166, and the detachable fixing method can be snap-fit ​​fixing, bolt fixing, etc. The inlet head 165 is used to connect to the foaming liquid supply device. In some embodiments, the inlet section 166 has a locking protrusion 168, and the inlet head 165 has a locking groove 169. The circumferential dimension of the locking groove 169 is larger than that of the locking protrusion 168, so that the locking protrusion 168 and the locking groove 169 cooperate to fix the inlet head 165 on the inlet section 166, and allow the inlet head 165 to be rotated and adjusted at one end of the inlet section 166 for easy connection to the foaming liquid supply device. In some embodiments, the inlet section 166 is provided with a one-way guide member 167, which may specifically be a one-way valve. The foaming liquid may specifically be foaming liquid, dishwashing liquid, hand soap, etc.

[0052] As described above, water can enter the foaming liquid receiving cavity 131 through the first type of flow channel 132. The foaming liquid can be initially mixed and diluted with water in the foaming liquid receiving cavity 131 before entering the mixing section 11 through the second type of flow channel 133 for further mixing, thereby further improving the mixing effect of foaming liquid and water.

[0053] In some embodiments, the first mixing section 111 has an oscillation cavity 1111, which is connected to the inlet section 113 and is perpendicular to the liquid flow direction. The size of the oscillation cavity 1111 is smaller than the size of the flow channel in the inlet section 113. Specifically, the oscillation cavity 1111 also has a first non-straight flow channel (not shown). The second mixing section 112 has a second mixing cavity 1121, which is connected to the oscillation cavity 1111. The second mixing cavity 1121 forms a second non-straight flow channel 1122. Specifically, the second non-straight flow channel 1122 is a spiral flow channel.

[0054] In this embodiment, the foaming liquid and water are mixed in the first-stage mixing section 111 through two combined mechanisms. First, perpendicular to the liquid flow direction, the size of the oscillation chamber 1111 is smaller than the size of the flow channel in the water inlet section 113. This causes the water to collide with the cavity wall of the oscillation chamber 1111 before entering from the water inlet section 113, changing the water flow direction, reducing the water flow velocity, and causing the water to flow turbulently and irregularly, thus facilitating the oscillation and mixing of water and foaming liquid. Secondly, a first non-straight flow channel is also provided in the oscillation chamber 1111, allowing the water and foaming liquid to continuously collide turbulently within the oscillation chamber 1111. The combined effect of these two mixing mechanisms improves the mixing effect of the first-stage mixing section 111. The first non-straight flow channel can be a spiral flow channel, a bend flow channel, a curved flow channel, etc., and the number of first non-straight flow channels can be one or more. In this embodiment, the second-stage mixing chamber 1121 mixes the foaming liquid and water by forming a second non-straight flow channel 1122. In other embodiments, the second-stage mixing chamber 1121 can also improve the mixing effect by changing the flow channel size. Similarly, the number of second non-straight flow channels 1122 can be one or more. In this embodiment, the second non-straight flow channel 1122 is a spiral flow channel. In other embodiments, the second non-straight flow channel 1122 can also be a bent flow channel, a curved flow channel, etc.

[0055] As mentioned above, the oscillation cavity 1111 is provided with a first non-straight flow channel, which can improve the mixing effect of foaming liquid and water in the oscillation cavity 1111.

[0056] In some embodiments, along the liquid flow direction, the size of the outlet 1123 of the second-stage mixing chamber 1121 gradually decreases; the first-stage foaming section 121 has a first-stage foaming chamber 1211, the outlet 1123 of the second-stage mixing chamber 1121 is provided corresponding to the first-stage foaming chamber 1211, and a first suction gap 141 is provided between the outlet 1123 and the cavity wall of the second-stage mixing chamber 1121; the second-stage foaming section 122 has a second-stage foaming chamber 1221, and a second suction gap 142 is formed on the cavity wall of the second-stage foaming chamber 1221.

[0057] The mixture in the second-stage mixing chamber 1121 enters the first-stage foaming chamber 1211 through the outlet 1123. In this embodiment, foam is generated by oscillating and mixing the mixture with air. Air in the first-stage foaming chamber 1211 is drawn in through the first suction gap 141. Along the liquid flow direction, the size of the outlet 1123 of the second-stage mixing chamber 1121 gradually decreases, causing the flow velocity of the mixture to continuously increase. According to the Bernoulli effect, the higher the velocity, the lower the pressure, resulting in a Venturi effect. This creates a pressure difference between the air inside the first-stage foaming chamber 1211 and the air outside the device. Air is then drawn into the first-stage foaming chamber 1211 through the first suction gap 141 to perform the first foaming with the mixture. Related technologies propose a foaming device 10, which requires an additional air pump to draw in air for foaming. In this embodiment, air is drawn in by forming the Venturi effect, eliminating the need for an additional air-drawing device and reducing the volume of the foaming device 10. In addition, since air pumps are noisy, eliminating the need for an air pump also reduces the noise during the foaming process.

[0058] As described above, the size of the outlet 1123 gradually decreases, and the flow velocity of the mixture gradually increases when it flows out of the second-stage mixing chamber 1121. According to the Bernoulli effect, the pressure will decrease, and air can be drawn into the foaming section 12 through the first intake gap 141 for the first foaming.

[0059] In some embodiments, the foaming device 10 includes a first cylindrical body 162 and a second cylindrical body 163. The first cylindrical body 162 includes a first part (not shown) and a second part (not shown), with the first part connected to the second part. The first part is sleeved on the outside of the second cylindrical body 163, and a first air intake gap 141 is formed between the first part and the cylindrical wall of the second cylindrical body 163. The second part includes a mixing section 11. The second cylindrical body 163 includes a first-stage foaming chamber 1211. The water inlet section 113 and the foaming liquid inlet section 13 are an integrated structure and are located at one end of the first cylindrical body 162.

[0060] In this embodiment, the first cylindrical body 162 and the second cylindrical body 163 are cylindrical. In other embodiments, the first cylindrical body 162 and the second cylindrical body 163 may also be rectangular. The first cylindrical body 162 and the second cylindrical body 163 are detachable, allowing them to be separated for maintenance of the internal structure of the mixing section 11 and the foaming section 12. Furthermore, the first part is fitted over the second cylindrical body 163, and a first suction gap 141 is formed between their cylindrical walls. There may be one or more first suction gaps 141. The first cylindrical body 162 and the second cylindrical body 163 can be fixed together by means of a snap-fit ​​structure, bolt structure, or other methods.

[0061] The above can form the first intake gap 141.

[0062] In some embodiments, the first-stage foaming cavity 1211 is provided with a first mesh structure 151; the second-stage foaming cavity 1221 is provided with a second mesh structure 152.

[0063] The mesh structure can be made of fine yarn, nylon mesh, plastic mesh, etc. There can be one or more first mesh structures 151, and one or more second mesh structures 152. The mesh structure can cause air and the mixture to vibrate, producing foam. The mesh structure can also cut the foam, forming fine, high-quality foam.

[0064] As described above, the collision of air and liquid with the network structure causes oscillations, generating foam. This foam can also form fine, high-quality foam.

[0065] In some embodiments, the foaming section 12 further includes a nozzle 123, which is movably connected to one end of the first section.

[0066] In this embodiment, the spraying structure on the second-stage foaming section 122 is a spray head 123, which is used to spray foam and water. The spray head 123 is movably connected to one end of the first part, and can rotate at one end of the first part to adjust the angle, thus changing the spray angle to meet the flushing requirements of different toilet models. In some preferred embodiments, the spray head 123 is a universal head, which is fixed to the spray head fixing nut 164 at one end of the first part by a universal nut 161. The universal head can rotate within the universal nut 161. Specifically, the universal nut 161 is fixed to the first part of the first cylindrical body 162 by a threaded structure. The universal nut 161 has a retaining cavity with a smooth arc surface. The universal head is retained within the retaining cavity, and the surface of the universal head in contact with the cavity surface is also a smooth arc surface. This configuration allows the universal head to rotate within the retaining cavity of the universal nut 161 to adjust the angle.

[0067] As mentioned above, the spray head 123 can flexibly adjust the spray angle to meet the flushing needs of different toilet models.

[0068] In some embodiments, the second mesh structure 152 is disposed inside the nozzle 123, the second suction gap 142 is located in the connection area between the nozzle 123 and the first part, and the size of the inlet 1231 of the nozzle 123 decreases along the liquid flow direction.

[0069] The inlet 1231 of the nozzle 123 is the port connected to the first part. As the liquid flows upward, the size of the inlet 1231 decreases, which causes the Venturi effect to occur, generating a pressure difference. Air is drawn in from the second air gap and mixed with the liquid to produce a second foaming, which improves the foaming efficiency. After the second foaming, the liquid impacts the second mesh structure 152, further foaming and cutting the foam to produce fine and high-quality foam.

[0070] As described above, the size of the inlet 1231 of the nozzle 123 is reduced and the flow rate is increased, so that air can be drawn in through the second suction gap 142 for foaming.

[0071] Correspondingly, this application also proposes a flushing mechanism that includes the aforementioned foaming device 10.

[0072] In the above-mentioned flushing mechanism, water and foaming liquid are mixed in the first mixing section 111. Unmixed water and foaming liquid can continue to mix in the second mixing section 112, which can improve the mixing effect of foaming liquid and water. The resulting mixture is foamed in the first foaming section 121, and the unfoamed mixture can continue to foam in the second foaming section 122. Through multi-stage mixing and multi-stage foaming, the consumption of foaming liquid during foaming can be reduced and the foaming rate can be increased.

[0073] Correspondingly, this application also proposes a toilet that includes the aforementioned flushing mechanism.

[0074] In the toilet described above, water and foaming liquid are mixed in the first mixing section 111. Unmixed water and foaming liquid can continue to mix in the second mixing section 112, which can improve the mixing effect of foaming liquid and water. The resulting mixture is foamed in the first foaming section 121, and the unfoamed mixture can continue to foam in the second foaming section 122. Through multi-stage mixing and multi-stage foaming, the amount of foaming liquid consumed during foaming can be reduced, and the foaming rate can be increased.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A foaming device, characterized in that, The foaming device includes: A mixing section for mixing water and foaming liquid to obtain a mixture, the mixing section including at least a first-stage mixing section and a second-stage mixing section, the first-stage mixing section being connected to the second-stage mixing section; The foaming section is provided, wherein the mixture is sprayed out after being agitated with air to generate foam. The foaming section includes at least a first-stage foaming section and a second-stage foaming section. The second-stage mixing section is connected to the first-stage foaming section, and the first-stage foaming section is connected to the second-stage foaming section. The second-stage foaming section has a spraying structure.

2. The foaming device according to claim 1, characterized in that, The mixing section further includes a water inlet section, which is connected to the first-stage mixing section; The foaming device further includes: The foaming liquid inlet has a foaming liquid containing cavity; the foaming liquid inlet has a first type of flow channel and a second type of flow channel, the foaming liquid containing cavity is connected to the water inlet section through the first type of flow channel, and the foaming liquid containing cavity is connected to the first stage mixing section through the second type of flow channel.

3. The foaming device according to claim 2, characterized in that, The first mixing section has an oscillation chamber that is connected to the inlet section and is perpendicular to the liquid flow direction. The size of the oscillation chamber is smaller than the size of the flow channel in the inlet section. Specifically, the oscillation cavity also has a first non-straight flow channel; The second-stage mixing section has a second-stage mixing cavity, which is connected to the oscillation cavity, and the second-stage mixing cavity forms a second non-straight flow channel; Specifically, the second non-straight flow channel is a spiral flow channel.

4. The foaming device according to claim 3, characterized in that, Along the liquid flow direction, the size of the outlet of the second-stage mixing chamber gradually decreases; The first-stage foaming section has a first-stage foaming chamber, and the outlet of the second-stage mixing chamber is provided corresponding to the first-stage foaming chamber. There is a first air intake gap between the outlet and the wall of the second-stage mixing chamber. The second-stage foaming section has a second-stage foaming cavity, and the cavity wall of the second-stage foaming cavity forms a second air intake gap.

5. The foaming device according to claim 4, characterized in that, The foaming device includes: A first cylindrical body, comprising a first part and a second part, wherein the first part is connected to the second part; The second cylindrical body has the first part sleeved outside the second cylindrical body, and the first air intake gap is formed between the first part and the cylindrical wall of the second cylindrical body. The second part includes the mixing part, and the second cylindrical body includes the first-stage foaming cavity. The water inlet section and the foaming liquid inlet section are an integrated structure and are located at one end of the first cylindrical body.

6. The foaming device according to claim 5, characterized in that, The first-stage foaming cavity is provided with a first mesh structure; the second-stage foaming cavity is provided with a second mesh structure.

7. The foaming device according to claim 6, characterized in that, The foaming section also includes: A nozzle, which is movably connected to one end of the first part.

8. The foaming device according to claim 7, characterized in that, The second mesh structure is disposed inside the nozzle, and the second suction gap is located in the connection area between the nozzle and the first part. Along the liquid flow direction, the size of the inlet of the nozzle decreases.

9. A flushing mechanism, characterized in that, The flushing mechanism includes the foaming device according to any one of claims 1-8.

10. A toilet, characterized in that, The toilet includes the flushing mechanism as described in claim 9.

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