A foaming fitting, a brush ring spray head assembly and a toilet

Abstract

The utility model discloses a foaming joint, brush circle shower nozzle assembly and closestool, foaming joint includes water inlet, water outlet and the intercommunication flow channel of intercommunication water inlet and water outlet, foaming joint still includes with the intercommunication flow channel intercommunication liquid inlet and air inlet, liquid inlet is set up with the liquid supply device connection, and the liquid supply device is set up to the liquid inlet input foaming liquid, air inlet is set up with the gas supply device connection, and the gas supply device is set up to the air inlet input gas and control the on-off of air inlet, and foaming joint can effectively control the flushing noise and improve the stability of flushing.

Description

Technical Field

[0001] This utility model relates to bathroom technology, and more specifically, to a foaming connector, a brush ring nozzle assembly, and a toilet. Background Technology

[0002] In the smart toilet industry, after long-term use, the ceramic body of the toilet often develops limescale and bacteria due to dirt accumulation. Traditional cleaning methods cannot effectively sterilize and remove scale from the ceramic area below the water seal surface and the washing surface.

[0003] More and more smart toilets are now equipped with a brush ring foaming function, which provides a large foam coverage area and high foaming efficiency. However, air needs to be mixed in during foaming, but the air inlet is usually kept open. This means that even when there is no foaming, the water in the brush ring will contain air bubbles, increasing noise and creating a poor user experience.

[0004] For example, some smart toilets utilize a Venturi structure to generate self-aspirating foam, which is low-cost. However, this structure cannot independently control the opening and closing of the air intake, so a Venturi effect also occurs during non-foaming flushing, resulting in water with air bubbles in the brush ring. This leads to increased noise during non-foaming flushing, creating a poor user experience. Furthermore, the suction effect of the Venturi self-aspirating structure depends on the water flow rate, and water pressure fluctuations are significant when using municipal water. Also, the Venturi structure requires a slightly tapered inner diameter to accelerate water flow, but this reduces the flow area and decreases the water flow to the brush ring, making it less effective at fully cleaning the ceramic surface under low water pressure. Utility Model Content

[0005] This utility model provides a foaming connector, a brush ring nozzle assembly, and a toilet, which can effectively control flushing noise and improve flushing stability.

[0006] This utility model provides a foaming connector, comprising: a water inlet, a water outlet, and a connecting channel connecting the water inlet and the water outlet; the foaming connector further comprises a liquid inlet and an air inlet connected to the connecting channel, the liquid inlet being configured to be connected to a liquid supply device, the liquid supply device being configured to input foaming liquid into the liquid inlet; the air inlet being configured to be connected to an air supply device, the air supply device being configured to input gas into the air inlet and control the opening and closing of the air inlet.

[0007] In one exemplary embodiment, the air inlet is located upstream of the liquid inlet along the water flow direction.

[0008] In an exemplary embodiment, the foaming joint is provided with a turbulent structure disposed in the communicating channel and located between the air inlet and the liquid inlet, the turbulent structure being configured to increase turbulence to enhance the mixing of air and water.

[0009] In one exemplary embodiment, the connecting channel includes an input channel, an output channel, and a hybrid channel connecting the input channel and the output channel; The air inlet is connected to the input channel, the liquid inlet is connected to the mixing channel, and the water flow direction of the input channel is perpendicular to the water flow direction of the mixing channel. The connecting channel is provided with a T-shaped cavity structure located between the downstream of the air inlet and the upstream of the liquid inlet, and the T-shaped cavity structure forms the turbulent structure.

[0010] In an exemplary embodiment, the foaming connector includes an inlet connector forming the input channel and an outlet connector forming the mixing channel and the output channel. The inlet connector is perpendicular to the outlet connector, and the T-shaped cavity structure is provided at the connection between the inlet connector and the outlet connector.

[0011] In one exemplary embodiment, the ratio of the height h to the length d of the T-cavity structure is set to be between 1 and 2.

[0012] In an exemplary embodiment, the relationship between the distance H1 between the air inlet and the liquid inlet and the diameter D of the mixing channel is: H1 = 2D ~ 10D.

[0013] In an exemplary embodiment, the foaming connector includes an air inlet connector forming an air inlet channel, the output end of the air inlet connector being tapered, and the diameter of the output end of the air inlet connector being in the range of 0.5mm to 2mm.

[0014] This utility model embodiment also provides a brush ring nozzle assembly, including: a brush ring nozzle having a spray end and a water inlet end, and a foaming connector as described in any of the above embodiments connected to the water inlet end of the brush ring nozzle.

[0015] In an exemplary embodiment, the distance H2 between the mixing channel of the foaming joint and the nozzle of the spraying end of the brush ring nozzle is related to the diameter D of the mixing channel as follows: H2 ≥ 5D.

[0016] In an exemplary embodiment, the brush ring nozzle assembly further includes a liquid supply device connected to the liquid inlet of the foaming joint, an air supply device connected to the air inlet of the foaming joint, a flushing valve for controlling the on / off state of the water inlet of the foaming joint, and a control device connecting the liquid supply device, the air supply device and the flushing valve. The control device is configured to control the air supply device to open the air inlet when the liquid supply device supplies liquid, and to control the air supply device to close the air inlet when the liquid supply device stops supplying liquid.

[0017] This utility model provides a toilet, comprising: a toilet body and a brush ring nozzle assembly as described in any of the above embodiments, installed on the toilet body.

[0018] This embodiment of the invention features a foaming connector with a water inlet, a liquid inlet, and an air inlet, used for water, liquid, and air intake respectively, to achieve the foaming function of the connector. The air inlet of the foaming connector uses an air supply device to precisely control the air volume and airflow rate, ensuring the air supply rate is unaffected by water pressure and maintaining a stable foaming effect. Furthermore, the air supply device allows for control of the air inlet's opening and closing, preventing it from opening during non-foaming flushing and avoiding the problem of gas mixing into the water, which could cause excessive noise from the brush ring. Moreover, the air supply device eliminates the need for a Venturi structure with a gradually narrowing inner diameter to accelerate water flow, thus avoiding the need to reduce the flow area of ​​the connecting channel. This ensures a stable water flow to the brush ring and prevents the problem of insufficient water coverage on the toilet ceramic surface under low water pressure.

[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0020] The accompanying drawings are provided to further understand the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this utility model to explain the technical solution of this utility model, and do not constitute a limitation on the technical solution of this utility model.

[0021] Figure 1 This is a cross-sectional view of the brush ring nozzle assembly according to an embodiment of the present utility model; Figure 2 This is a three-dimensional exploded view of the brush ring nozzle and foaming connector according to an embodiment of the present utility model; Figure 3 This is a cross-sectional view of the foamed joint according to an embodiment of the present utility model; Figure 4 This is an enlarged view of the T-shaped cavity structure of the foaming joint according to an embodiment of the present invention; Figure 5 This is a schematic diagram showing the working state of the brush ring nozzle assembly according to an embodiment of the present utility model; Figure 6 This is a perspective view of a toilet with a brush ring nozzle assembly installed according to an embodiment of the present invention.

[0022] Reference numerals: Brush ring nozzle assembly - 100; Foaming connector - 1; Brush ring nozzle - 2; Water inlet - 201; Spraying end - 202; External thread - 203; Water inlet - 101; Water outlet - 102; Liquid inlet - 103; Air inlet - 104; Connecting channel - 10; Input channel - 10A; Output channel - 10B; Mixing channel - 10C; Turbulent structure - 10D; Water inlet connector - A; Water outlet connector - B; Liquid inlet connector - C; Air inlet connector - Q; Nozzle body - 21; Universal nozzle - 22; Pressure cap - 23; Locking nut - 24; Toilet - 1000. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be arbitrarily combined with each other.

[0024] like Figure 1 , Figure 2 As shown, this utility model provides a brush ring nozzle assembly 100, including a foaming connector 1 and a brush ring nozzle 2. The brush ring nozzle 2 has a water inlet end 201 and a spray end 202. The foaming connector 1 is connected to the water inlet end 201 of the brush ring nozzle 2 and is configured to mix foaming liquid and water to generate cleaning foam that is sprayed out through the spray end 202 of the brush ring nozzle 2.

[0025] like Figure 1 , Figure 3 , Figure 5 As shown, the foaming connector 1 includes an inlet 101, an outlet 102, and a connecting channel 10 connecting the inlet 101 and the outlet 102. The foaming connector 1 also includes a liquid inlet 103 and an air inlet 104 connected to the connecting channel 10. The liquid inlet 103 is configured to be connected to a liquid supply device, which is configured to input foaming liquid into the liquid inlet 103. The air inlet 104 is configured to be connected to an air supply device, which is configured to input gas into the air inlet 104 and control the opening and closing of the air inlet 104.

[0026] The liquid supply device in this embodiment of the utility model adopts a liquid pump, such as a peristaltic pump; the gas supply device adopts a gas supply pump, which can open the air inlet 104 when the gas supply device supplies gas and close the air supply port 104 when the gas supply stops, thereby providing gas during foaming rinsing and preventing gas from mixing in and causing noise problems during non-foaming rinsing.

[0027] The foaming connector of this embodiment has three inlets (water inlet 101, liquid inlet 103, and air inlet 104), used for water, liquid, and air intake respectively, to realize the foaming function of the foaming connector 1. The air inlet 104 uses an air supply device to precisely control the air intake volume and airflow rate, so the air supply rate is not affected by water pressure, resulting in a stable foaming effect. Furthermore, the air inlet 104 can be opened only when the brush ring is foaming and closed when not foaming, thus preventing non-foaming flushing air from mixing into the water and causing excessive brush ring noise. Moreover, the air supply device eliminates the need for the Venturi structure's gradually narrowing inner diameter to accelerate water flow, thus avoiding the need to reduce the flow area of ​​the connecting channel 10. This ensures a stable water flow to the brush ring and prevents the problem of insufficient water coverage on the toilet ceramic surface under low water pressure.

[0028] like Figure 5 As shown, along the water flow direction, the air inlet 104 is located upstream of the liquid inlet 103, which allows air to mix with water first to form a bubble cluster, and the foam liquid is then injected to more efficiently wrap the bubbles and form a stable foam.

[0029] like Figure 3 As shown, the connecting channel 10 includes an input channel 10A, an output channel 10B, and a mixing channel 10C connecting the input channel 10A and the output channel 10B. The air inlet 104 is connected to the input channel 10A, and the liquid inlet 103 is connected to the mixing channel 10C.

[0030] like Figure 3 As shown, research has revealed that the relationship between the distance H1 between the air inlet 104 and the liquid inlet 103 and the diameter D of the output channel 10B directly affects the foam generation efficiency and quality. When H1 < 2D, the foam liquid may be dispersed by the high-speed airflow. When H1 > 10D, due to the excessively long pipeline, bubbles may coalesce, leading to a decrease in foam quality. Therefore, in this embodiment of the invention, the relationship between the distance H1 between the air inlet 104 and the liquid inlet 103 and the diameter D of the output channel 10B is set as: H1 = 2D ~ 10D (between 2 times D and 10 times D).

[0031] like Figure 1 As shown, after the water-air mixed state water flow mixes with the foam liquid at the foaming joint 1, it will be discharged through the nozzle of the spray end 202 of the brush ring nozzle 2. In order to prevent the foam liquid from being discharged from the nozzle of the spray end 202 without being fully mixed with the water and air, resulting in very low foaming efficiency, the distance H2 between the mixing channel 10C and the nozzle of the spray end 202 is set to H2≥5D (5 times D) and the diameter D of the mixing channel 10B is set.

[0032] like Figure 4As shown, the foaming connector 1 is provided with a turbulence structure 10D located in the connecting channel 10 and between the air inlet 104 and the liquid inlet 103, which is configured to increase turbulence to increase the mixing of air and water.

[0033] In this embodiment, the water flow direction of the input channel 10A is perpendicular to the water flow direction of the mixing channel 10C. The connecting channel 10 is provided with a T-shaped cavity structure located between the water path downstream of the air inlet 104 and upstream of the liquid inlet 103. The T-shaped cavity structure forms a turbulent structure 10D, which causes the water flow and the bubble-mixed liquid to form a reflux vortex zone after entering the T-shaped cavity structure, making the air more evenly mixed in the water flow, thereby increasing turbulence and facilitating the mixing with the foam liquid at the rear end to improve the foaming effect.

[0034] In some exemplary embodiments, the turbulent structure 10D may be a spiral structure, a mesh, or a porous structure, used to divide, shear, and recombine fluid. The turbulent structure 10D may also be an obstacle (such as a flat plate or perforated plate), used to disrupt laminar flow, force the fluid to turn, generate eddies, and form high-intensity turbulence.

[0035] like Figure 2 As shown, the foaming connector 1 includes a water inlet connector A forming an input flow channel 10A, a water outlet connector B forming a mixing flow channel 10C and an output flow channel 10B, a liquid inlet connector C forming a liquid inlet flow channel, and an air inlet connector Q forming an air inlet flow channel. The water inlet connector A is perpendicular to the water outlet connector B, and a T-shaped cavity structure is provided at the connection between the water inlet connector A and the water outlet connector B.

[0036] like Figure 4 As shown, research has found that when the ratio of the height h to the length d of the T-cavity structure is too small, its effect on forming the turbulent structure 10D is relatively small. When the ratio of the height h to the length d of the T-cavity structure is greater than 1, the effect is better. Due to the spatial limitations of the T-cavity structure, in this embodiment of the invention, the ratio of the height h to the length d of the T-cavity structure is set to be between 1 and 2.

[0037] like Figure 4 As shown, when air enters through the air inlet connector Q, if the inner diameter of the air inlet connector Q is too large, the bubbles generated by the air pump blowing air into the water may also be correspondingly large. An excessively large orifice diameter may cause bubble aggregation, reducing mixing efficiency. To enhance bubble dispersion, small orifices can be used, allowing the gas to pass through and generate a higher airflow velocity, forming finer bubbles through shear force, thus improving foam quality. Therefore, in this embodiment of the invention, the output end of the air inlet connector Q is designed with a reduced diameter, and the diameter range of the output end of the air inlet connector Q is 0.5mm to 2mm.

[0038] like Figure 1As shown, the foaming connector 1 and the water inlet end 201 of the brush ring nozzle 2 are connected by a snap-fit ​​structure D, and a sealing ring is provided at the connection point between the foaming connector 1 and the brush ring nozzle 2.

[0039] like Figure 4 As shown, the brush ring nozzle 2 includes a nozzle body 21, a pressure cap 23 detachably mounted to the water outlet end of the nozzle body 21, and a universal nozzle 22 located at the water outlet end of the nozzle body 21. In this embodiment, the nozzle body 21 and the pressure cap 23 are threaded together, and the connection is sealed with a sealing ring to prevent leakage. The brush ring nozzle 2 also includes a locking nut 24 screwed onto the outer wall of the nozzle body 21. The locking nut 24 is fitted with the external thread 203 of the nozzle body 21 to fix the nozzle body 21 to the toilet 1000. The brush ring nozzle 2 and the foaming connector 1 can be assembled separately or integrally formed.

[0040] The brush ring nozzle device 100 of this utility model features a separate design for the brush ring nozzle 2 and the foaming connector 1. The foaming connector 1 can be fitted with the existing brush ring nozzle 2, eliminating the need for users to replace the entire brush ring nozzle 2 and reducing operating costs. Furthermore, the brush ring nozzle device 100 can be used in both non-foaming and foaming application scenarios. The brush ring nozzle 2 and the foaming connector 1 can be installed together in the toilet 1000 without altering the toilet 1000's structure, making the brush ring nozzle device 100 simple to install, highly compatible, and space-saving. Of course, the brush ring nozzle 2 and the foaming connector 1 can also be integrally molded; this is not a limitation.

[0041] like Figure 5 As shown, the brush ring nozzle assembly 100 also includes a liquid inlet device connected to the liquid inlet 103 of the foaming connector 1, an air supply device connected to the air inlet 104 of the foaming connector 1, a flushing valve controlling the opening and closing of the water inlet 101 of the foaming connector 1, and a control device (not shown) connecting the liquid supply device, the air supply device, and the flushing valve. The control device is configured to control the air supply device to open the air inlet 104 when the liquid supply device supplies liquid, and to control the air supply device to close the air inlet 104 when the liquid supply device stops supplying liquid. The air supply device can be an air pump, and the liquid inlet device can be a liquid pump.

[0042] like Figure 6 As shown, this utility model embodiment also provides a toilet 1000, including: a toilet body and a brush ring nozzle assembly 100 as described in any of the above embodiments, which is installed on the toilet body.

[0043] In the description of this utility model, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "'mouth' structure", etc., 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 this utility model and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, or is constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "connection," "direct connection," "indirect connection," "fixed connection," "installation," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. The terms "installation," "connection," and "fixed connection" can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal communication between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0045] Although the embodiments disclosed in this utility model are as described above, the content described is only for the purpose of facilitating understanding of this utility model and is not intended to limit this utility model. Any person skilled in the art to which this utility model pertains may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this utility model, but the patent protection scope of this utility model shall still be defined by the appended claims.

Claims

1. A foamed connector, characterized in that, include: The foaming joint includes an inlet, an outlet, and a connecting channel between the inlet and the outlet; the foaming joint also includes a liquid inlet and an air inlet connected to the connecting channel, the liquid inlet being connected to a liquid supply device, the liquid supply device being configured to input foaming liquid into the liquid inlet; the air inlet being connected to an air supply device, the air supply device being configured to input gas into the air inlet and control the opening and closing of the air inlet.

2. The foamed joint according to claim 1, characterized in that, Along the direction of water flow, the air inlet is located upstream of the liquid inlet.

3. The foamed joint according to claim 1, characterized in that, The foaming joint is provided with a turbulent structure located in the connecting channel and between the downstream of the air inlet and the upstream of the liquid inlet. The turbulent structure is configured to increase turbulence to enhance the mixing of air and water.

4. The foamed joint according to claim 3, characterized in that, The connecting channel includes an input channel, an output channel, and a mixing channel connecting the input channel and the output channel; The air inlet is connected to the input channel, the liquid inlet is connected to the mixing channel, and the water flow direction of the input channel is perpendicular to the water flow direction of the mixing channel. The connecting channel is provided with a T-shaped cavity structure located between the downstream of the air inlet and the upstream of the liquid inlet, and the T-shaped cavity structure forms the turbulent structure.

5. The foamed joint according to claim 4, characterized in that, The foaming joint includes an inlet joint forming the input flow channel and an outlet joint forming the mixing flow channel and the output flow channel. The inlet joint is perpendicular to the outlet joint, and the T-shaped cavity structure is provided at the connection between the inlet joint and the outlet joint.

6. The foamed joint according to claim 4, characterized in that, The ratio of the height h to the length d of the T-shaped cavity structure is set to be between 1 and 2.

7. The foamed joint according to claim 4, characterized in that, The relationship between the distance H1 between the air inlet and the liquid inlet and the diameter D of the mixing channel is: H1 = 2D ~ 10D.

8. The foamed joint according to any one of claims 1-7, characterized in that, The foaming connector includes an air inlet connector that forms an air inlet channel. The output end of the air inlet connector is in a reduced diameter shape, and the diameter range of the output end of the air inlet connector is 0.5mm to 2mm.

9. A brush ring nozzle assembly, characterized in that, include: A brush ring nozzle having a spray end and a water inlet end, and a foaming connector as described in any one of claims 1-8 connected to the water inlet end of the brush ring nozzle.

10. The brush ring nozzle assembly according to claim 9, characterized in that, The relationship between the distance H2 between the mixing channel of the foaming joint and the nozzle of the spraying end of the brush ring nozzle and the diameter D of the mixing channel is: H2≥5D.

11. The brush ring nozzle assembly according to claim 9, characterized in that, It also includes a liquid supply device connected to the liquid inlet of the foaming joint, an air supply device connected to the air inlet of the foaming joint, a flushing valve for controlling the opening and closing of the water inlet of the foaming joint, and a control device connecting the liquid supply device, the air supply device and the flushing valve. The control device is configured to control the air supply device to open the air inlet when the liquid supply device supplies liquid, and to control the air supply device to close the air inlet when the liquid supply device stops supplying liquid.

12. A toilet, characterized in that, include: The toilet body and the brush nozzle assembly as described in any one of claims 9-11, mounted on the toilet body.

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