Water outlet device and micro-bubble water outlet structure thereof
By setting up a combination structure of water inlet channel, pressure reducing chamber and vortex chamber in the microbubble water outlet device, two-stage bubble production is achieved, which solves the problems of complex structure or insufficient microbubble in existing devices, and improves the bubble output of microbubble water and the effect of hot water.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SPARK (XIAMEN) SANITARY WARE CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-12
AI Technical Summary
Existing microbubble water dispensing devices have complex structures or insufficient microbubbles, especially the foaming effect of hot water needs improvement.
The structure employs an inlet channel, a pressure reducing chamber, and a vortex chamber connected sequentially along the water flow direction. By designing the cross-sectional area, the water pressure is reduced and the water rotates within the vortex chamber, achieving two-stage bubble generation and increasing the amount of microbubbles.
The two-stage foaming method significantly increases the amount of microbubbles, especially improving the foaming effect of hot water. The structure is simple and easy to implement.
Smart Images

Figure CN224346093U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a microbubble water outlet structure and a water outlet device having the microbubble water outlet structure. Background Technology
[0002] Studies have found that microbubble water has a better cleaning effect, and microbubble water dispensing devices are already available on the market, such as shower heads and faucets. Existing microbubble water dispensing devices use either air intake or air release methods. The air intake method uses an air intake channel to draw in external air and mix it with the water flow to form bubble water. Then, a filter breaks larger bubbles into microbubbles, resulting in microbubble water flowing out. However, this method requires an air intake channel and filter connected to the outside, making the structure relatively complex. The air release method, on the other hand, utilizes the principle that dissolved air in the water will release microbubbles when water pressure decreases. This method does not require introducing external air or breaking up the bubbles, making the structure simpler. However, the microbubbles are not abundant enough, affecting the user experience, especially for hot water, where the bubble dispensing effect still needs improvement.
[0003] In view of this, how to provide a microbubble water outlet structure that is both simple in structure and rich in microbubbles is a technical problem that needs to be solved by those skilled in the art. Utility Model Content
[0004] To solve the above-mentioned technical problems, the purpose of this utility model is to propose a microbubble water outlet structure, which can increase the amount of microbubbles produced to a certain extent, and is especially beneficial to the foaming effect of hot water.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A microbubble water outlet structure includes an inlet channel, a pressure reducing chamber, and a vortex chamber arranged sequentially along the water flow direction. The cross-sectional area of the outlet of the inlet channel is smaller than the cross-sectional area of the inlet of the pressure reducing chamber. After the water flows into the pressure reducing chamber through the inlet channel, the water pressure is reduced. After the water pressure is reduced by the pressure reducing chamber, the water flows out through the outlet of the vortex chamber after rotating in the vortex chamber.
[0007] In some preferred technical solutions, the water inlet channel includes a first water inlet section and a second water inlet section arranged sequentially along the water flow direction, wherein the cross-sectional area of the first water inlet section is larger than the cross-sectional area of the second water inlet section.
[0008] In some preferred technical solutions, the first water inlet section is conical, and its inner diameter gradually decreases along the water flow direction.
[0009] In some preferred technical solutions, the second water inlet section is conical, and its inner diameter gradually decreases along the water flow direction; or, the second water inlet section is cylindrical.
[0010] In some preferred technical solutions, the pressure-reducing cavity is cylindrical or conical, and the pressure-reducing cavity is coaxially arranged with the water inlet channel.
[0011] In some preferred technical solutions, a stepped surface is formed between the outlet of the water inlet channel and the inlet of the pressure reducing chamber.
[0012] In some preferred embodiments, the water flow in the pressure-reducing chamber enters the vortex chamber along the tangential direction of the inner wall of the vortex chamber.
[0013] In some preferred technical solutions, the vortex cavity is provided with two or more inlets, and each inlet is evenly spaced along the circumference. Each inlet is opened in the tangential direction of the inner wall of the vortex cavity, and the outlet of the vortex cavity is located on the bottom wall of the vortex cavity.
[0014] In addition, this utility model also provides a water outlet device, including the microbubble water outlet structure described in any of the above claims, wherein the water outlet device sprays microbubble water through the microbubble water outlet structure.
[0015] In some preferred technical solutions, the water outlet device includes an overlapping water outlet panel and a diverter plate. The diverter plate is provided with the water inlet channel and an isolation section. The water outlet panel is provided with the pressure reducing chamber and the swirling chamber. When the water outlet panel and the diverter plate are overlapped and connected, the water inlet channel is connected to the pressure reducing chamber, and the isolation section isolates the pressure reducing chamber and the swirling chamber.
[0016] Compared with the prior art, the beneficial effects of this utility model include at least the following:
[0017] This invention's microbubble water outlet structure comprises an inlet channel, a pressure-reducing chamber, and a vortex chamber connected sequentially along the water flow direction. The cross-sectional area of the inlet channel outlet is smaller than that of the pressure-reducing chamber inlet. This increased cross-sectional area lowers the water pressure upon entering the pressure-reducing chamber. Once the water pressure decreases, dissolved air in the water precipitates out, forming microbubbles—this is the first bubble-producing stage. Subsequently, the water, after being depressurized in the pressure-reducing chamber, rotates within the vortex chamber and flows out through its outlet. Within the vortex chamber, due to the rotation of the water flow and the centrifugal force, dissolved air in the water further precipitates out, further increasing the amount of microbubbles produced—this is the second bubble-producing stage. Compared to existing technologies that only have a first bubble-producing stage, this invention, through both first and second bubble-producing stages, can significantly increase the amount of microbubbles produced. Extensive testing has shown that this two-stage bubble-producing method is particularly beneficial for hot water bubble production. Attached Figure Description
[0018] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.
[0019] in:
[0020] Figure 1 This is a perspective view of a water outlet device according to an embodiment of the present invention;
[0021] Figure 2 This is one of the exploded views of a water outlet device according to an embodiment of this utility model;
[0022] Figure 3 This is a second exploded view of a water outlet device according to an embodiment of this utility model;
[0023] Figure 4 This is a perspective sectional view of a water outlet device according to an embodiment of this utility model;
[0024] Figure 5 yes Figure 4 Enlarged view of point A in the middle;
[0025] Figure 6 This is an exploded view of a water outlet device according to an embodiment of the present invention;
[0026] Figure 7 This is a perspective view of the water outlet panel according to an embodiment of the present invention.
[0027] The attached figures are labeled as follows:
[0028] 1- Microbubble water outlet structure:
[0029] 10 - Water inlet channel; 11 - First water inlet section; 12 - Second water inlet section; 121 - Water inlet channel outlet;
[0030] 20 - Pressure relief chamber; 21 - Inlet of pressure relief chamber; 211 - Step surface;
[0031] 30 - Swirl chamber; 31 - Inlet of swirl chamber; 32 - Outlet of swirl chamber;
[0032] 2-Water outlet device:
[0033] 100-Water body;
[0034] 200-Water outlet panel;
[0035] 300 - Diverter plate; 310 - Isolation section. Detailed Implementation
[0036] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0037] Please see Figures 1 to 7 This utility model provides a preferred embodiment of a microbubble water outlet structure 1, which is used in a water outlet device 2. The water outlet device 2 sprays microbubble water through the microbubble water outlet structure 1. The water outlet device 2 can be a shower head, faucet, or spray gun, etc. In this embodiment, a shower head is used as an example for illustration.
[0038] The microbubble water outlet structure includes an inlet channel 10, a pressure reducing chamber 20, and a vortex chamber 30 connected sequentially along the water flow direction. The cross-sectional area of the outlet 121 of the inlet channel is smaller than the cross-sectional area of the inlet 21 of the pressure reducing chamber 20. After the water flows into the pressure reducing chamber 20 through the inlet channel 10, the water pressure is reduced. After the pressure is reduced by the pressure reducing chamber 20, the water flows out through the outlet 32 of the vortex chamber 30 after rotating in the vortex chamber 30.
[0039] The aforementioned microbubble water outlet structure comprises an inlet channel 10, a pressure-reducing chamber 20, and a vortex chamber 30 connected sequentially along the water flow direction. The cross-sectional area of the outlet 121 of the inlet channel is smaller than that of the inlet 21 of the pressure-reducing chamber. This increased cross-sectional area reduces the water pressure after the water flows into the pressure-reducing chamber 20. Once the water pressure decreases, dissolved air in the water is released to form microbubbles, which is the first bubble-producing stage. Subsequently, the water, after being depressurized in the pressure-reducing chamber 20, rotates within the vortex chamber 30 and flows out through the outlet 32. Within the vortex chamber 30, due to the rotation of the water flow and the centrifugal force, dissolved air in the water is further released, thereby further increasing the amount of microbubbles produced, which is the second bubble-producing stage. Compared to existing technologies that only have the first bubble-producing stage, this solution, through both the first and second bubble-producing stages, can increase the amount of microbubbles produced to a certain extent. Furthermore, extensive testing has shown that the two-stage bubble-producing method is particularly beneficial for the bubble-producing effect of hot water.
[0040] Specifically, in this embodiment, the water inlet channel 10 includes a first water inlet section 11 and a second water inlet section 12 arranged sequentially along the water flow direction, wherein the cross-sectional area of the first water inlet section 11 is larger than the cross-sectional area of the second water inlet section 12.
[0041] In this embodiment, the first inlet section 11 is conical, and its inner diameter gradually decreases along the water flow direction, thereby increasing the pressure and speed of the water flow within the first inlet section 11.
[0042] In this embodiment, the second inlet section 12 is conical, and its inner diameter gradually decreases along the water flow direction. This further increases the pressure and speed of the water flow within the second inlet section 12, preparing for subsequent depressurization and gas release. Alternatively, the second inlet section 12 can also be designed as a cylinder to achieve a flow rectification effect.
[0043] In this embodiment, the pressure reducing chamber 20 is cylindrical or conical, and the pressure reducing chamber 20 is coaxially arranged with the water inlet channel 10.
[0044] In this embodiment, a stepped surface 211 is formed between the outlet 121 of the water inlet channel and the inlet 21 of the pressure reducing chamber. By designing the stepped surface 211, the cross-sectional area of the outlet 121 of the water inlet channel changes abruptly to the cross-sectional area of the inlet 21 of the pressure reducing chamber, which can significantly reduce the water pressure and improve the gas release effect.
[0045] In this embodiment, the water flow in the pressure reducing chamber 20 enters the vortex chamber 30 along the tangential direction of the inner wall of the vortex chamber 30. This design allows the water flow to rotate in the vortex chamber 30. The structure is simple and does not require additional drainage structures.
[0046] To improve the foaming effect, the vortex chamber 30 can be provided with two or more inlets 31, and the inlets 31 of each vortex chamber are evenly spaced along the circumference. The inlets 31 of each vortex chamber are opened in the tangential direction of the inner wall of the vortex chamber 30, and the outlet 32 of the vortex chamber 30 is located on the bottom wall of the vortex chamber 30. In this embodiment, two inlets 31 of the vortex chamber are provided and arranged symmetrically. Correspondingly, two sets of water inlet channels 10 and pressure reducing chambers 20 are also symmetrically arranged. Each set of water inlet channels 10 and pressure reducing chambers 20 is connected to one inlet 31 of the vortex chamber.
[0047] In this embodiment, the water outlet device 2 (shower head) includes a water outlet body 100, and a superimposed water outlet panel 200 and a diverter plate 300. The diverter plate 300 is provided with a water inlet channel 10 and an isolation part 310, and the water outlet panel 200 is provided with a pressure reducing chamber 20 and a vortex chamber 30. When the water outlet panel 200 and the diverter plate 300 are superimposed and connected, the water inlet channel 10 is connected to the pressure reducing chamber 20, and the isolation part 310 isolates the pressure reducing chamber 20 and the vortex chamber 30. This design makes the forming of the water inlet channel 10, the pressure reducing chamber 20, and the vortex chamber 30 simpler and easier.
[0048] This invention employs a two-stage foaming structure (first and second foaming stages), which can increase the amount of microbubbles produced to a certain extent. Extensive testing has shown that the two-stage foaming method is particularly beneficial for the foaming effect of hot water.
[0049] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.
Claims
1. A microbubble water outlet structure, characterized in that, It includes an inlet channel, a pressure reducing chamber, and a vortex chamber that are sequentially connected along the water flow direction. The cross-sectional area of the outlet of the inlet channel is smaller than the cross-sectional area of the inlet of the pressure reducing chamber. After the water flows into the pressure reducing chamber, the water pressure decreases. After the water pressure is reduced by the pressure reducing chamber, the water flows out of the outlet of the vortex chamber after rotating in the vortex chamber.
2. The microbubble water outlet structure according to claim 1, characterized in that, The water inlet channel includes a first water inlet section and a second water inlet section arranged sequentially along the water flow direction, wherein the cross-sectional area of the first water inlet section is larger than the cross-sectional area of the second water inlet section.
3. The microbubble water outlet structure according to claim 2, characterized in that, The first inlet section is conical, and its inner diameter gradually decreases along the direction of water flow.
4. The microbubble water outlet structure according to claim 3, characterized in that, The second inlet section is conical, and its inner diameter gradually decreases along the direction of water flow; or, the second inlet section is cylindrical.
5. The microbubble water outlet structure according to claim 1, characterized in that, The pressure-reducing chamber is cylindrical or conical, and is coaxially arranged with the water inlet channel.
6. The microbubble water outlet structure according to claim 1, characterized in that, A stepped surface is formed between the outlet of the water inlet channel and the inlet of the pressure reducing chamber.
7. The microbubble water outlet structure according to claim 2, characterized in that, The water flow in the pressure reducing chamber enters the vortex chamber along the tangential direction of the inner wall of the vortex chamber.
8. The microbubble water outlet structure according to claim 1, characterized in that, The vortex cavity has two or more inlets, and each inlet is evenly spaced along the circumference. Each inlet is opened in the tangential direction of the inner wall of the vortex cavity, and the outlet of the vortex cavity is located on the bottom wall of the vortex cavity.
9. A water outlet device, characterized in that, Includes the microbubble water outlet structure as described in any one of claims 1-8, wherein the water outlet device sprays microbubble water through the microbubble water outlet structure.
10. The water outlet device according to claim 9, characterized in that, The water outlet device includes an overlapping water outlet panel and a diverter plate. The diverter plate is provided with the water inlet channel and an isolation section. The water outlet panel is provided with the pressure reducing chamber and the swirling chamber. When the water outlet panel and the diverter plate are overlapped and connected, the water inlet channel is connected to the pressure reducing chamber, and the isolation section isolates the pressure reducing chamber and the swirling chamber.