Foam jet and intelligent toilet

Abstract

The present application belongs to the technical field of spray head, and discloses a foam spray head and an intelligent closestool. The foam spray head comprises a spray head body and a foaming piece. The spray head body is provided with a foaming channel and a spraying channel. The foaming channel has a foaming inlet and a foaming outlet. The spraying channel has a spraying inlet and a spraying outlet. The foaming inlet and the spraying inlet are connected with an external liquid supply device. The foaming outlet is communicated with the spraying channel and located between the spraying inlet and the spraying outlet. The foaming piece is arranged in the foaming channel. The intelligent closestool comprises a ceramic body, a cover plate and the above-mentioned foam spray head. The cover plate is connected to the ceramic body, and the foam spray head is arranged on the ceramic body or the cover plate, so that the spraying distance can be increased, and auxiliary measures such as increasing the power of a water pump and adding an air pump are not needed, thereby reducing the cost.

Description

Technical Field

[0001] This invention relates to the field of nozzle technology, and more particularly to a foam nozzle and a smart toilet. Background Technology

[0002] Currently, smart toilets generally have a foam shield function, which forms a dense foam layer on the water seal surface to achieve functions such as splash prevention, odor prevention, antibacterial and wall lubrication.

[0003] To increase the foam coverage area, there are generally two methods. One is to cover the ceramic surface with the water that comes out with the brush ring. However, this method uses a large amount of water, and a large amount of water in the brush ring can easily dissipate the foam and prevent it from staying on the ceramic surface, thus failing to achieve a good effect.

[0004] Currently, some methods have emerged that use foam nozzles at the front of smart toilet seats to spray foam and cover the ceramic ring surface. However, with existing technology, foam formation usually requires passing through an impact foaming filter. After foam formation, the flow rate decreases significantly, and the spray distance cannot reach the very tip of the ceramic ring. Therefore, it is usually necessary to increase the front spray water pressure, water pump power, or reduce the orifice size to sacrifice flow rate to increase the flow rate, or to add auxiliary devices such as air pumps for auxiliary spraying, resulting in increased costs and waste. Summary of the Invention

[0005] The purpose of this invention is to provide a foam nozzle and a smart toilet that increases spray distance and reduces costs.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] One aspect provides a foam nozzle, which includes:

[0008] The nozzle body is provided with a foaming channel and a spraying channel. The foaming channel has a foaming inlet and a foaming outlet, and the spraying channel has a spraying inlet and a spraying outlet. Both the foaming inlet and the spraying inlet are connected to an external liquid supply device, and the foaming outlet is connected to the spraying channel and is located between the spraying inlet and the spraying outlet.

[0009] A foaming component, wherein the foaming component is disposed within the foaming channel.

[0010] In some embodiments, the outflow direction of the foaming outlet is inclined toward the direction of the spray outlet.

[0011] In some embodiments, the nozzle body is further provided with a main liquid inlet channel and a liquid inlet communicating with the main liquid inlet channel. The liquid inlet is connected to the liquid supply device, and the foaming inlet and the spraying inlet are both connected to the main liquid inlet channel.

[0012] In some embodiments, the nozzle body is further provided with an air inlet, a first pressurization hole and a second pressurization hole, the main liquid inlet channel is connected to the foaming inlet through the first pressurization hole, the main liquid inlet channel is connected to the spraying inlet through the second pressurization hole, the flow cross-sectional area of ​​the first pressurization hole and the second pressurization hole is smaller than the flow cross-sectional area of ​​the main liquid inlet channel, and the air inlet is connected to the foaming inlet.

[0013] In some embodiments, the nozzle body is further provided with a mixing chamber, and the air inlet, the first pressurizing hole, the second pressurizing hole, the spray inlet and the foaming inlet are all connected to the mixing chamber; the first pressurizing hole is disposed opposite to the foaming inlet, and the outflow direction of the first pressurizing hole is the same as the axial direction of the foaming inlet; the second pressurizing hole is disposed opposite to the spray inlet, and the outflow direction of the second pressurizing hole is the same as the axial direction of the spray inlet.

[0014] In some embodiments, the nozzle body includes a support body and a nozzle body. The main liquid inlet channel, the first pressure boosting hole, and the second pressure boosting hole are formed on the support body. A plug-in ring is provided on the support body, and the first pressure boosting hole and the second pressure boosting hole are disposed within the plug-in ring. A plug-in cavity is provided on the nozzle body, and the plug-in cavity separates the foaming channel and the spraying channel. The plug-in ring is inserted into the plug-in cavity and abuts against the foaming component within the plug-in cavity.

[0015] In some embodiments, the foam nozzle is further provided with a drive member, the nozzle body is connected to the output end of the drive member, and the drive member can drive the nozzle body to rotate to adjust the orientation of the spray outlet.

[0016] In some embodiments, the foam nozzle further includes a housing having a rotating channel, a connection port communicating with the rotating channel, and a liquid injection port communicating with the rotating channel. The nozzle body is inserted into the rotating channel through the connection port so that the foaming inlet and the spraying inlet are connected to the liquid injection port through the rotating channel. The driving member can drive the nozzle body to rotate relative to the housing.

[0017] On the other hand, a toilet is also provided, the toilet including a ceramic body, a seat and a foam nozzle as described above, the seat being connected to the ceramic body, and the foam nozzle being disposed on the ceramic body or the seat.

[0018] The beneficial effects of this invention are:

[0019] The present invention provides a foaming channel and a spraying channel in the nozzle body. The foam, after being foamed in the foaming channel, enters the spraying channel. With the help of the fluid in the spraying channel, the foam is finally accelerated and sprayed out, which significantly increases the spraying distance of the foam.

[0020] Compared to existing technologies that increase pump power, reduce orifice size to sacrifice flow rate, or add air pumps to increase foam spray speed, this invention utilizes a simple dual-channel structure. It uses high-speed water flow in the spray channel to propel low-speed foam in the foaming channel, which not only increases the coverage area of ​​foam on the ceramic pot surface but also greatly reduces costs. Attached Figure Description

[0021] Figure 1 This is an exploded view of the foam nozzle described in an embodiment of the present invention;

[0022] Figure 2 This is a cross-sectional view of the foam nozzle described in an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the support body according to an embodiment of the present invention;

[0024] Figure 4 This is a cross-sectional view of the support body according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the nozzle body according to an embodiment of the present invention;

[0026] Figure 6 This is a side sectional view of the nozzle body according to an embodiment of the present invention;

[0027] Figure 7 This is a cross-sectional view of the nozzle body according to an embodiment of the present invention;

[0028] Figure 8 This is a cross-sectional view of the housing described in an embodiment of the present invention;

[0029] Figure 9 This is a flow diagram of the mixture in the foam nozzle according to an embodiment of the present invention;

[0030] Figure 10 This is a schematic diagram of the foam nozzle being installed on the ceramic body according to an embodiment of the present invention.

[0031] In the picture:

[0032] 100. Foam nozzle;

[0033] 1. Nozzle body; 11. Foaming channel; 111. Foaming inlet; 112. Foaming outlet; 12. Spray channel; 121. Spray inlet; 122. Spray outlet; 13. Main liquid inlet channel; 131. Liquid inlet; 14. Mixing chamber; 15. Air inlet; 16. First pressurization hole; 17. Second pressurization hole; 18. Support body; 19. Nozzle body; 191. Insertion cavity; 110. Insertion ring; 120. Abutment block; 130. Groove; 140. Elastic retaining ring; 150. Limiting retaining platform; 160. Mounting groove; 170. Notch;

[0034] 2. Foamed parts;

[0035] 3. Driving components;

[0036] 4. Shell; 41. Rotating channel; 42. Connection port; 43. Injection port; 44. Support platform;

[0037] 5. Sealing plug;

[0038] 6. Sealing ring;

[0039] 200. Ceramic body. Detailed Implementation

[0040] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0041] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0044] As shown in Figure 1 to Figure 10 As shown, the present invention provides a foam nozzle 100, which includes a nozzle body 1 and a foaming component 2. The nozzle body 1 is provided with a foaming channel 11 and a spraying channel 12. The foaming channel 11 has a foaming inlet 111 and a foaming outlet 112, and the spraying channel 12 has a spraying inlet 121 and a spraying outlet 122. Both the foaming inlet 111 and the spraying inlet 121 are connected to an external liquid supply device. The foaming outlet 112 is connected to the spraying channel 12 and is located between the spraying inlet 121 and the spraying outlet 122. The foaming component 2 is disposed within the foaming channel 11. Figure 9 As shown, a foaming channel 11 and a spraying channel 12 are respectively provided in the nozzle body 1, and a foaming component 2 is placed in the foaming channel 11. The mixture of water and foam concentrate supplied by the liquid supply device enters the foaming channel 11 and is foamed by the foaming component 2 to form foam. The foam flows into the spraying channel 12 through the foaming outlet 112. Although the speed will decrease during this process, the liquid in the spraying channel 12 will push the foam coming out of the foaming outlet 112 to accelerate and spray it out through the spraying outlet 122. This significantly increases the spraying distance compared to spraying directly through the foaming component 2, and also eliminates the need for pressurizing components such as air pumps, thus reducing costs.

[0045] like Figure 2 As shown, in some embodiments, the outflow direction of the foaming outlet 112 is inclined towards the direction of the spray outlet 122, so that the foam will tend to flow towards the spray outlet 122 after it comes out of the foaming outlet 112, and the foam will have a flow speed towards the spray outlet 122. Thus, under the action of the speed of the liquid itself in the spray channel 12, the final spray speed can be further increased (the speed is the sum of the flow velocity in the spray channel 12 and the flow speed of the foam from the foaming outlet 112 towards the spray outlet 122), thereby further increasing the spray distance.

[0046] like Figure 2As shown, in the current embodiment, the nozzle body 1 has a height direction ( Figure 2 (X direction) and horizontal direction ( Figure 2 In the Y direction), the foaming channel 11 is set above the spraying channel 12, the foaming outlet 112 is set downward, and the spraying channel 12 extends in the horizontal direction, that is, the spraying outlet 122 is located below the foaming outlet 112. Thus, when the foam comes out of the foaming outlet 112, it is also subject to gravity (providing additional power), which can increase the speed of the foam coming out of the foaming outlet 112 to a certain extent, thereby increasing the spraying speed and further increasing the spraying distance.

[0047] like Figures 2 to 4 As shown, in some embodiments, the nozzle body 1 has a main liquid inlet channel 13 and a liquid inlet 131 connected to the main liquid inlet channel 13. The liquid inlet 131 is connected to a liquid supply device. The foaming inlet 111 and the spray inlet 121 are both connected to the main liquid inlet channel 13. At this time, the liquid supply device supplies a mixture of water and foam concentrate (hereinafter referred to as the mixture) to the main liquid inlet channel 13 through the liquid inlet 131. That is to say, part of the mixture in the main liquid inlet channel 13 enters the foaming channel 11 for foaming, and the mixture also enters the spray channel 12. The mixture in the spray channel 12 collides with the foam coming out of the foaming outlet 112, so that the mixture can be foamed again through the collision, further increasing the amount of foam. Compared with injecting clean water into the spray channel 12 to dilute the foam, the foaming effect can be significantly improved.

[0048] like Figure 2 and Figure 9 As shown, in some embodiments, such as Figure 2 As shown, the nozzle body 1 is also provided with a first pressure-boosting hole 16 and a second pressure-boosting hole 17. The main liquid inlet channel 13 is connected to the foaming inlet 111 through the first pressure-boosting hole 16, and the main liquid inlet channel 13 is connected to the spray inlet 121 through the second pressure-boosting hole 17. The flow cross-sectional area of ​​the first pressure-boosting hole 16 and the second pressure-boosting hole 17 is smaller than the flow cross-sectional area of ​​the main liquid inlet channel 13. The nozzle body 1 is also provided with an air inlet hole 15, which is connected to the foaming inlet 111. At this time, external air can be drawn into the foaming inlet 111 through the air inlet hole 15. Thus, when the mixed liquid in the main liquid inlet channel 13 passes through the first pressure-boosting hole 16, the flow velocity will increase significantly, forming a negative pressure, and air can be drawn into the foaming inlet 111 through the air inlet hole 15. The air can be mixed with the mixed liquid to improve the foaming effect and increase the foaming volume. At the same time, when the mixed liquid in the main inlet channel 13 passes through the second pressurization hole 17, the flow rate will increase significantly, thereby further increasing the flow rate in the injection channel 12 and increasing the flow rate in the injection channel 12.

[0049] In some embodiments, the nozzle body 1 is further provided with a mixing chamber 14. The first pressurization hole 16 and the second pressurization hole 17 are connected to the injection inlet 121 and the foaming inlet 111 through the mixing chamber 14. The first pressurization hole 16 is positioned opposite to the foaming inlet 111, and the second pressurization hole 17 is positioned opposite to the injection inlet 121, thereby allowing the mixed liquid to enter the foaming channel 11 and the injection channel 12 as quickly as possible. In the current embodiment, the outflow direction of the first pressurization hole 16 is the same as the axial direction of the foaming inlet 111, thereby allowing the mixed liquid sprayed from the first pressurization hole 16 to quickly enter the foaming inlet 111, reducing velocity loss. Similarly, the outflow direction of the second pressurization hole 17 is the same as the axial direction of the injection inlet 121, and further details are omitted. The air inlet 15 is also connected to the mixing chamber 14. When the mixture in the main liquid inlet channel 13 enters the mixing chamber 14 through the first pressure boosting hole 16 and the second pressure boosting hole 17, the flow rate will increase significantly. The increased flow rate will also increase the negative pressure in the mixing chamber 14, so that more air can be drawn in through the air inlet 15. Since the air will flow into the foaming channel 11 and the spraying channel 12 with the mixture, not only will the amount of foam in the foaming channel 11 increase, but the amount of foam in the spraying channel 12 will also increase. Furthermore, the air flow can simultaneously reduce the resistance in the foaming channel 11 and the spraying channel 12, further improving the spraying speed and spraying distance.

[0050] like Figure 2 , Figure 4 and Figure 6 As shown, in some embodiments, the nozzle body 1 includes a support body 18 and a nozzle body 19. A main liquid inlet channel 13 is formed on the support body 18. In the current embodiment, the main liquid inlet channel 13 extends along the height direction. A first pressure-boosting hole 16 and a second pressure-boosting hole 17 are also formed on the side wall of the support body 18. The first pressure-boosting hole 16 and the second pressure-boosting hole 17 are opened in the horizontal direction, and the first pressure-boosting hole 16 is located above the second pressure-boosting hole 17. A connector ring 110 is provided on the support body 18. The pressure boosting port 16 and the second pressure boosting port 17 are disposed within the insertion ring 110. Correspondingly, the nozzle body 1 is provided with an insertion cavity 191 and an insertion interface connecting the inside and outside of the insertion cavity 191. The insertion cavity 191 is divided into an upper and lower foaming channel 11 and a spraying channel 12. The foaming component 2 is disposed at the foaming inlet 111 of the foaming channel 11. The foaming component 2 is fixed against the foaming inlet 111 of the foaming channel 11 by the insertion ring 110 through the aforementioned insertion interface. It should be noted that the foaming channel 11 and the spraying channel 12 can be separated by a partition wall or by the foaming component 2 fixed in the insertion cavity 191. That is, the space below the foaming component 2 is defined as the spraying channel 12, and the space where the foaming component 2 is located is defined as the foaming channel 11.

[0051] The inner space of the insertion ring 110 forms the aforementioned mixing chamber 14. An air inlet 15 is disposed on the insertion ring 110. To prevent obstruction of the air inlet 15 due to the insertion, a notch 170 is provided on the nozzle body 19 corresponding to the position of the air inlet 15. In this embodiment, the air inlet 15 is disposed on the upper end face of the insertion ring 110, and the notch 170 is also disposed on the upper end face of the nozzle body 19, thereby reducing the possibility of leakage.

[0052] like Figure 7 As shown, specifically, the inner wall of the foaming channel 11 is provided with multiple spaced-abutting blocks 120. The insertion ring 110 abuts against the foaming component 2 on the abutting blocks 120. In the current embodiment, a portion of the channel wall of the foaming channel 11 downstream of the foaming component 2 gradually moves away from the foaming component 2 from high to low, thereby forming an inclined wall, which causes the foam to flow from the foaming outlet 112 towards the spray outlet 122. Exemplarily, the foaming component 2 is a filter screen.

[0053] like Figure 2 and Figure 4 As shown, in some embodiments, in order to facilitate the forming of the main liquid inlet channel 13, the first pressure boosting hole 16 and the second pressure boosting hole 17 on the support body 18, the main liquid inlet channel 13 extends through the lower part of the support body 18, and is then sealed by the sealing plug 5 inserted into the main liquid inlet channel 13; in order to ensure the stability of the sealing plug 5, the sealing plug 5 abuts against the lower cavity wall in the insertion cavity 191, that is, when the insertion ring 110 is inserted into the insertion cavity 191 and abuts against the foaming component 2, the sealing plug 5 also enters the insertion cavity 191 and is fixed by the lower cavity wall of the insertion cavity 191.

[0054] like Figure 1 As shown, in some embodiments, the foam nozzle 100 is further provided with a drive component 3. The nozzle body 1 is connected to the output end of the drive component 3. The drive component 3 can drive the nozzle body 1 to rotate, thereby adjusting the orientation of the spray outlet 122. When not in use, the spray outlet 122 can be hidden by rotation, expanding the scope of application. Specifically, the drive component 3 is a rotary motor. The top of the support body 18 is provided with a groove 130. The output end of the rotary motor is inserted into the groove 130, thereby driving the support body 18 to rotate through the rotation of the rotary motor. Since the nozzle body 19 is interference-fitted with the support body 18, it drives the nozzle body 19 to rotate, thereby changing the orientation of the spray outlet 122.

[0055] like Figure 2 , Figure 4 and Figure 8As shown, based on the rotational characteristics of the support body 18, in order to avoid interference with the rotation of the support body 18 during the process of connecting the liquid inlet 131 to the liquid supply device, in some embodiments, the foam nozzle 100 also includes a housing 4. The housing 4 has a rotational channel 41, a connection port 42 connecting the rotational channel 41, and an injection port 43 connecting the rotational channel 41. The injection port 43 can be connected to the liquid supply device through a pipe, so that the liquid supply device supplies the mixed liquid into the rotational channel 41 through the injection port 43. The connection port 42 is located at the lower end of the support body 18. Sealing rings 6 are provided on both the upper and lower sides of the liquid inlet 131, and the support body 18 is sealed and inserted into the rotational channel 41 from bottom to top through the insertion interface, so that the liquid inlet 131 is located in the rotational channel 41, and the injection port 43 is placed between the two sealing rings 6, so that the injection port 43 is connected through the rotational channel 41. The driving member 3 is provided on the housing 4, and the output end of the driving member 3 extends into the rotational channel 41 and is connected to the support body 18 to drive the support body 18 to rotate relative to the housing 4. In the current embodiment, multiple inlets 131 are arranged along the circumference of the support body 18, thus eliminating the need to consider the opening position of the inlets 131 and the rotation angle of the support body 18, further facilitating the entry of the mixed liquid into the main inlet channel 13. For example, the support body 18 is provided with an installation groove 160 for installing the sealing ring 6 to improve the stability of the sealing ring 6; in addition, the support body 18 is also provided with a limiting platen 150. When the support body 18 is inserted into the rotation channel 41 and the housing 4 abuts against the limiting platen 150, the injection port 43 is positioned between two sealing rings 6 to avoid over-insertion.

[0056] like Figure 2 , Figure 3 and Figure 5 As shown in the current embodiment, to ensure the stability of the connection between the nozzle body 1 and the housing 4, an elastic retaining ring 140 is also provided on the nozzle body 19. The elastic retaining ring 140 has an opening and is engaged with the housing 4 through the opening. The housing 4 is provided with a support platform 44, and the elastic retaining ring 140 is supported on the support platform 44, thereby reducing the possibility of the support body 18 falling off. It can be understood that when the driving member 3 drives the support body 18 to rotate, and drives the nozzle body 19 to rotate, the elastic retaining ring 140 can also rotate on the housing 4.

[0057] like Figure 10As shown, the present invention also provides a smart toilet, which includes a ceramic body 200, a lid, and the aforementioned foam nozzle 100. The ceramic body 200 is provided with a pot surface and a liquid supply device, the liquid supply device being connected to an injection port 43. The lid is connected to the ceramic body 200 to open or cover the opening of the pot surface. A housing 4 is disposed on the ceramic body 200 or the lid, such that the foam nozzle 100 is located at the rear end of the pot surface on the ceramic body 200. When a foam shield is not needed, the spray inlet 121 is retracted outside the pot surface. When a foam shield needs to be generated, the drive unit 3 drives the spray inlet 121 to rotate, so that the spray inlet 121 faces the front end of the pot. Then, liquid is supplied through the liquid supply device. During this process, the mixed liquid can enter the foaming channel 11 and the spraying channel 12 respectively. The liquid in the spraying channel 12 will push the foam coming out of the foaming channel 11 to accelerate and spray it out from the spray outlet 122 to the front end of the pot, increasing the spraying distance and the coverage area of ​​the foam on the pot surface. There is no need to adopt auxiliary measures such as increasing the power of the water pump and adding an air pump, thus reducing costs.

[0058] It is understandable that the foam nozzle 100 described above can also be used in other devices that require foam spraying.

[0059] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A foam nozzle, characterized in that, include: The nozzle body (1) is provided with a foaming channel (11) and a spraying channel (12). The foaming channel (11) has a foaming inlet (111) and a foaming outlet (112). The spraying channel (12) has a spraying inlet (121) and a spraying outlet (122). The foaming inlet (111) and the spraying inlet (121) are both connected to an external liquid supply device. The foaming outlet (112) is connected to the spraying channel (12) and is located between the spraying inlet (121) and the spraying outlet (122). The nozzle body (1) is also provided with a main liquid inlet channel (13) and a liquid inlet (131) connected to the main liquid inlet channel (13). The liquid inlet (131) is connected to the liquid supply device. The foaming inlet (111) and the spraying inlet (121) are both connected to the main liquid inlet channel (13). Foaming component (2), wherein the foaming component (2) is disposed within the foaming channel (11); The liquid supply device supplies a mixture of water and foam stock solution to the main liquid inlet channel (13) through the liquid inlet (131). Part of the mixture in the main liquid inlet channel (13) enters the foaming channel (11) to form foam, and another part of the mixture in the main liquid inlet channel (13) enters the spray channel (12).

2. The foam nozzle according to claim 1, characterized in that, The outflow direction of the foaming outlet (112) is inclined toward the direction of the spray outlet (122).

3. The foam nozzle according to claim 1, characterized in that, The injection outlet (122) is located below the foaming outlet (112).

4. The foam nozzle according to claim 1, characterized in that, The nozzle body (1) is also provided with an air inlet (15), a first pressure boosting hole (16) and a second pressure boosting hole (17). The main liquid inlet channel (13) is connected to the foaming inlet (111) through the first pressure boosting hole (16). The main liquid inlet channel (13) is connected to the spray inlet (121) through the second pressure boosting hole (17). The cross-sectional area of ​​the first pressure boosting hole (16) and the second pressure boosting hole (17) is smaller than the cross-sectional area of ​​the main liquid inlet channel (13). The air inlet (15) is connected to the foaming inlet (111).

5. The foam nozzle according to claim 4, characterized in that, The nozzle body (1) is also provided with a mixing chamber (14). The air inlet (15), the first pressurizing hole (16), the second pressurizing hole (17), the injection inlet (121), and the foaming inlet (111) are all connected to the mixing chamber (14). The first pressurizing hole (16) is arranged opposite to the foaming inlet (111), and the outflow direction of the first pressurizing hole (16) is the same as the axial direction of the foaming inlet (111). The second pressurizing hole (17) is arranged opposite to the injection inlet (121), and the outflow direction of the second pressurizing hole (17) is the same as the axial direction of the injection inlet (121).

6. The foam nozzle according to claim 4, characterized in that, The nozzle body (1) includes a support body (18) and a nozzle body (19). The main liquid inlet channel (13), the first pressure boosting hole (16) and the second pressure boosting hole (17) are formed on the support body (18). A plug-in ring (110) is provided on the support body (18). The first pressure boosting hole (16) and the second pressure boosting hole (17) are located in the plug-in ring (110). A plug-in cavity (191) is provided on the nozzle body (19). The plug-in cavity (191) separates the foaming channel (11) and the spraying channel (12). The plug-in ring (110) is inserted into the plug-in cavity (191) and abuts against the foaming component (2) in the plug-in cavity (191).

7. The foam nozzle according to any one of claims 1-6, characterized in that, The foam nozzle (100) is also provided with a drive (3), the nozzle body (1) is connected to the output end of the drive (3), and the drive (3) can drive the nozzle body (1) to rotate in order to adjust the orientation of the spray outlet (122).

8. The foam nozzle according to claim 7, characterized in that, The foam nozzle (100) also includes a housing (4), which has a rotating channel (41), a connection port (42) connecting the rotating channel (41), and a liquid injection port (43) connecting the rotating channel (41). The nozzle body (1) is inserted into the rotating channel (41) through the connection port (42) so that the foaming inlet (111) and the spraying inlet (121) are connected to the liquid injection port (43) through the rotating channel (41). The driving member (3) can drive the nozzle body (1) to rotate relative to the housing (4).

9. A toilet, characterized in that, The toilet includes a ceramic body (200), a lid, and a foam nozzle (100) as described in any one of claims 1-8, wherein the lid is connected to the ceramic body (200), and the foam nozzle (100) is disposed on the ceramic body (200) or the lid.

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