Microbubble water outlet device of faucet

Abstract

A shell is provided with a bubbling cavity and a water inlet jet hole formed in the top of the bubbling cavity, a gas-liquid mixing part is arranged in the bubbling cavity, a gas inlet cavity communicated with the outside atmosphere is formed between the gas-liquid mixing part and the shell, the gas-liquid mixing part is further provided with a microbubble generating cavity, and the microbubble generating cavity is communicated with the water inlet jet hole. The gas-liquid mixing piece is communicated with the gas inlet cavity and the micro-bubble generating cavity through a gas-liquid mixing hole, the water inlet jet hole is communicated with the gas inlet cavity, water enters the micro-bubble generating cavity through the gas-liquid mixing hole, and a foaming net is arranged on a fluid path in the micro-bubble generating cavity. According to the faucet microbubble water outlet device, gas and water flow are mixed through the jet flow effect, then bubbles are rectified and refined through the bubbling net, the diameter of the bubbles is reduced, the content of the microbubbles is increased, and then the flushing and dirt removing effects are improved. The faucet microbubble water outlet device is simple in structure, convenient to assemble and high in practicability.

Description

Technical Field

[0001] The present application relates to the technical field of faucet water outlet equipment, and in particular to a faucet micro-bubble water outlet device. Background Art

[0002] A faucet bubbler refers to an appliance that has a foaming effect and saves water. It allows the flowing water and air to mix fully, providing a larger contact area when washing hands. The water does not splash, the water flows gently, and the bursting of bubbles can enhance the cleaning effect, satisfying people's demand for the experience of using sparkling water.

[0003] According to the International Organization for Standardization (ISO), water with bubbles less than 100 μm in diameter can be called microbubble water. The interfacial properties of microbubble water can efficiently clean oil substances on solid surfaces and have better cleaning effects. In recent years, it has been gradually applied to faucet aerators. Although the common faucet aerators can achieve the effect of water-gas mixing to produce bubble water, the number of bubbles in the water is relatively small, and the diameter of the bubbles is large. The amount of microbubbles is insufficient, and the rectification effect on the water flow is not strong, and the cleaning effect is not good. In order to improve the deep cleaning effect of the water body, a large amount of microbubbles is required. Therefore, sometimes an air pump is required to assist, resulting in a complex structure and poor user experience. Therefore, how to increase the number of bubbles in a unit volume of water, reduce the bubble diameter, increase the microbubble content, and simplify the bubble structure are the areas where existing faucet aerators urgently need to be improved.

[0004] In addition, the traditional faucet bubbler only has a bubble function and cannot switch to other water outlet modes, especially the shower water outlet mode that people usually need. It has a single function and poor applicability. In order to cater to the different water needs of consumers, some faucet bubblers with multiple water supplies have begun to appear. For example, when a strong flush is needed, it provides users with powerful shower water that jets out, and when a water-saving flush is needed, it provides users with dense bubble water, thereby achieving the purpose of improving the cleaning effect with a small amount of water, which is convenient for users to choose to use. However, this faucet bubbler is still a preliminary emerging product with many defects, such as complex structure and inconvenient operation of switching water outlet modes. Summary of the invention

[0005] The present application provides a faucet micro-bubble water outlet device to solve the technical problems of insufficient micro-bubble volume and inconvenient operation of switching water outlet modes in existing faucet bubblers.

[0006] The technical solution adopted in this application is:

[0007] A faucet microbubble water outlet device comprises a shell and a gas-liquid mixing element, wherein the shell is provided with a bubble chamber and a water inlet jet hole provided at the top of the bubble chamber, the gas-liquid mixing element is provided in the bubble chamber, and forms an air inlet chamber connected to the outside atmosphere with the shell, the gas-liquid mixing element is also provided with a microbubble generating chamber, the gas-liquid mixing element connects the air inlet chamber and the microbubble generating chamber by providing a gas-liquid mixing hole, the water inlet jet hole is connected with the air inlet chamber, and water is introduced into the microbubble generating chamber through the gas-liquid mixing hole, and a bubble net is provided on the fluid path in the microbubble generating chamber.

[0008] The faucet micro-bubble water outlet device provided in this application also includes the following additional technical features:

[0009] The outer contour of the gas-liquid mixing piece is adapted to the inner contour of the bubble chamber, the side wall of the gas-liquid mixing piece is arranged with the inner wall of the bubble chamber to form a vertical air inlet cavity by setting a side recessed area, the bottom opening of the vertical air inlet cavity is connected to the outside atmosphere, the top wall of the gas-liquid mixing piece is arranged with the inner top wall of the bubble chamber to form a transverse air inlet cavity by setting a top recessed area, the transverse air inlet cavity and the vertical air inlet cavity are connected to form the air inlet cavity, and the gas-liquid mixing hole is arranged in the transverse air inlet cavity.

[0010] The vertical air inlet cavity is distributed on two opposite sides of the bubbling cavity, and the two ends of the transverse air inlet cavity respectively penetrate the vertical air inlet cavities on both sides. The gas-liquid mixing hole is arranged in the middle of the top recessed area, and the width dimension of the top recessed area is set to D, and the diameter of the gas-liquid mixing hole is set to d, wherein D is 0.8-1.2 times of d.

[0011] At least part of the water inlet jet hole is configured as a conical speed-increasing zone with an inner diameter gradually decreasing from top to bottom; the water inlet jet hole and the gas-liquid mixing hole are arranged vertically coaxially, and the diameter of the bottom opening of the water inlet jet hole is smaller than the diameter of the top opening of the gas-liquid mixing hole.

[0012] At least a portion of the gas-liquid mixing hole is configured as a conical diffusion zone with an inner diameter gradually increasing from top to bottom, and the conical diffusion zone includes a plurality of water flow bifurcation ribs distributed along the circumferential direction.

[0013] A plurality of the bubble generating nets are arranged on the fluid path in the micro-bubble generating chamber, and the plurality of bubble generating nets are separated by partitions.

[0014] The shell is provided with a shower water outlet cavity, and the device also includes a water inlet component, which is provided with a water outlet hole for discharging water to the shell. The shell is rotatably connected to the water inlet component so as to be switchable between a bubble water position and a shower water position; in the bubble water position, the water outlet hole is connected to the water inlet jet hole; in the shower water position, the water outlet hole is connected to the shower water outlet cavity.

[0015] The shell comprises an outer shell and an inner shell, the inner shell is divided into the bubbling chamber and the water dividing chamber located above the bubbling chamber by a partition wall, the water inlet jet hole is arranged on the partition wall and connected to the water dividing chamber, the outer shell and the inner shell form the shower water outlet chamber, the inner shell is provided with a shower water hole connecting the water dividing chamber and the shower water outlet chamber; the water inlet member comprises a water inlet portion having a water inlet chamber, the water outlet hole is arranged on the water inlet portion, and the inner shell is rotatably sleeved with the water inlet portion through the water dividing chamber; at the bubbling water position, the water outlet hole is misaligned with the shower water hole and connected to the water inlet jet hole; at the shower water position, the water outlet hole is connected to the shower water outlet chamber through the shower water hole.

[0016] The device also includes a water outlet component installed at the bottom of the shell, and the water outlet component includes, from the middle to the periphery, a bubble water outlet area covering the bottom opening of the micro-bubble generating chamber, an air intake area covering the bottom opening of the air intake chamber, and a shower water outlet area covering the bottom opening of the shower water outlet chamber, the bubble water outlet area is provided with a bubble water outlet hole connecting the micro-bubble generating chamber with the outside atmosphere, the air intake area is provided with an air intake hole connecting the air intake chamber with the outside atmosphere, and the shower water outlet area is provided with a shower water outlet hole connecting the shower water outlet chamber with the outside atmosphere.

[0017] The water inlet component also includes a limiting wall circumferentially surrounding the outside of the water inlet portion, the limiting wall and the water inlet portion form an annular groove, the outer shell and the top of the inner shell are connected by a rotating part, the top opening of the water diversion chamber is sleeved with the water inlet portion from bottom to top, and the rotating part is embedded in the annular groove, the rotating part is clamped with the limiting wall by setting a buckle, so that the water inlet component and the shell are relatively fixed along the axial direction.

[0018] Due to the adoption of the above technical solution, the technical effects achieved by this application include at least:

[0019] 1. The faucet micro-bubble water outlet device provided by the present application has an air-liquid mixing element forming an air inlet cavity between the shell and the bubble chamber of the shell, a micro-bubble generating cavity is provided in the air-liquid mixing element, and the air-liquid mixing hole connects the air inlet cavity and the micro-bubble generating cavity. When the high-speed water flow discharged from the faucet enters the shell, the water flows into the bubble chamber through the water inlet jet hole, and enters the micro-bubble generating cavity through the air-liquid mixing hole. At the same time, a negative pressure is formed near the air-liquid mixing hole, which forms a siphon effect on the air flow in the air inlet cavity, and then brings the air flow into the gas-liquid mixing hole to achieve water-gas mixing. After sufficient air flow and water flow are mixed in the gas-liquid mixing hole to form bubble water, they enter the micro-bubble generating cavity, and then pass through the bubble net to rectify and refine the bubbles, reduce the bubble diameter, and increase the micro-bubble content, which helps to improve the flushing and cleaning effect. The faucet micro-bubble water outlet device of the present application has a simple structure, is easy to assemble, and has strong practicality.

[0020] 2. As a preferred embodiment of the present application, the outer contour of the gas-liquid mixing element is adapted to the inner contour of the bubble chamber. When the gas-liquid mixing element is installed in the bubble chamber, the outer surface is closely abutted against the inner surface of the bubble chamber, and the air inlet chamber is divided into a vertical air inlet chamber and a horizontal air inlet chamber by the side recessed area and the top recessed area. The outside atmosphere enters the gas-liquid mixing hole through the vertical air inlet chamber and the horizontal air inlet chamber in turn. Under general household water pressure conditions, the smaller the average diameter of the bubble, the better the microbubble effect. If the air inlet chamber is too small, it is easy to cause insufficient air intake and fail to generate enough microbubbles; if the air inlet chamber is too large, the increase in gas content will cause large bubbles to escape from the gas-liquid mixing hole without mixing with the water flow, making it difficult to generate fine microbubbles. Therefore, the present application, through this design, helps to improve the structural layout of the air inlet chamber, avoid the air inlet chamber being too large, causing large bubbles to escape from the gas-liquid mixing hole, making it difficult for the water flow to generate fine microbubbles, and also avoid the air inlet chamber being too small, causing the gas content in the bubble water to be insufficient and not conducive to the generation of dense microbubbles.

[0021] 3. As a preferred embodiment of the present application, the vertical air inlet cavities are distributed on two opposite sides of the bubble generating cavity, and the two ends of the horizontal air inlet cavity respectively penetrate the vertical air inlet cavities on both sides, so that when the high-speed water flow is ejected from the water inlet jet hole and enters the microbubble generating cavity through the gas-liquid mixing hole, the negative pressure at the gas-liquid mixing hole simultaneously inhales air through the vertical air inlet cavities on both sides, so that the air flow is mixed into the water flow on both sides, which helps to evenly mix the water and gas, thereby improving the uniformity of the distribution of microbubbles in the microbubble water and improving the microbubble water discharge effect. The width of the top concave area is 0.8-1.2 times the diameter of the gas-liquid mixing hole, which further optimizes the air inlet cavity structure, avoids the air inlet cavity being too large or too small, and effectively increases the content of fine microbubbles.

[0022] 4. As a preferred embodiment of the present application, at least part of the water inlet jet hole is configured as a conical speed-increasing zone with a gradually decreasing inner diameter from top to bottom, so that when the water flows into the water inlet jet hole, the conical speed-increasing zone can converge and rectify the divergent water flow, avoid the water flow from diverging into the bubble chamber, and increase the velocity of the water flow, improve the jet velocity, so as to ensure the generation of a high-speed jet that converges toward the center, thereby generating an effective negative pressure effect, and stably sucking the airflow from the air inlet cavity into the gas-liquid mixing hole. The water inlet jet hole and the gas-liquid mixing hole are arranged vertically coaxially, and the diameter of the bottom opening of the water inlet jet hole is smaller than the diameter of the top opening of the gas-liquid mixing hole, so that the water flow converges and rectifies into a high-speed beam through the water inlet jet hole and then vertically injects into the gas-liquid mixing hole, effectively avoiding the water flow from splashing toward the lateral air inlet cavity, and effectively preventing water from accumulating in the lateral air inlet cavity and affecting the air intake effect.

[0023] 5. As a preferred embodiment of the present application, at least a portion of the gas-liquid mixing hole is configured as a conical diffusion zone with an inner diameter gradually increasing from top to bottom, and the conical diffusion zone includes a plurality of water flow bifurcation ribs distributed along the circumferential direction. After the gas and water flow are mixed in the gas-liquid mixing hole to form bubble water, they diffuse outward through the conical diffusion zone and are divided into multiple water flows under the action of the water flow bifurcation ribs, which helps to evenly distribute the bubble water in the bubble net. On the one hand, it can make full use of various parts of the bubble net to rectify and refine the bubbles, reduce the bubble diameter, and increase the microbubble content. On the other hand, it can also effectively avoid the phenomenon of water discharge in local positions of the bubble net and affect the water type of the water discharge.

[0024] 6. As a preferred embodiment of the present application, multiple bubble nets are provided on the fluid path in the microbubble generating chamber, so that the bubble water in the microbubble generating chamber needs to pass through multiple bubble nets to rectify and refine the bubbles, and the bubbles are fully cut multiple times, effectively reducing the bubble diameter and increasing the microbubble content. Multiple bubble nets are separated by separators to prevent two adjacent bubble nets from sticking to each other and causing the lower bubble net to block the mesh of the upper bubble net and interfere with water discharge.

[0025] 7. As a preferred embodiment of the present application, the water inlet is used to guide the water flow discharged from the faucet into the shell. The water flow first enters the water inlet, then enters the shell, and then is diverted through the shell. Specifically, when the shell is in the bubble water position, the water outlet is connected to the water inlet jet hole, so that the faucet micro-bubble water outlet device can discharge micro-bubble water; when the shell is in the shower water position, the water outlet is connected to the shower water outlet cavity, so that the faucet micro-bubble water outlet device can discharge shower water. Therefore, the faucet micro-bubble water outlet device of the present application is compatible with both shower water and bubble water functions, so that the user can switch the water outlet mode according to the needs. When strong water flushing is required, the faucet micro-bubble water outlet device can provide strong shower water that is ejected, and when water-saving flushing is required, the faucet micro-bubble water outlet device can provide dense micro-bubble water. Especially in the process of cleaning items with stubborn oil stains, the impact of the micro-bubble bursting when the micro-bubble water contacts the cleaned items can have a good flushing effect on the stubborn oil stains on the cleaned items, which can improve the cleanliness. The shell is rotatably connected to the water inlet part, so that the shell can be freely switched between the bubble water position and the shower water position by rotation. For example, rotating the shell clockwise switches it from the bubble water position to the shower water position, while rotating the shell counterclockwise switches it from the shower water position to the bubble water position. The operation is convenient and the structure is simple and compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0027] Figure 1 An exploded view of a faucet micro-bubble water outlet device provided by an embodiment of the present application;

[0028] Figure 2 An assembly diagram of a faucet micro-bubble water outlet device provided in one embodiment of the present application;

[0029] Figure 3 A cross-sectional view of a housing provided in accordance with an embodiment of the present application;

[0030] Figure 4 A schematic diagram of the structure of a gas-liquid mixing element provided in one embodiment of the present application Figure 1 ;

[0031] Figure 5 A schematic diagram of the structure of a gas-liquid mixing element provided in one embodiment of the present application Figure 2 ;

[0032] Figure 6 A schematic diagram of the structure of a gas-liquid mixing element provided in one embodiment of the present application Figure 3 ;

[0033] Figure 7 A cross-sectional view of a faucet micro-bubble water outlet device provided in one embodiment of the present application Figure 1 ;

[0034] Figure 8 A cross-sectional view of a faucet micro-bubble water outlet device provided in one embodiment of the present application Figure 2 ;

[0035] Fig. 9 A cross-sectional view of a faucet micro-bubble water outlet device provided in one embodiment of the present application Figure 3 , which shows the state where the housing is located at the bubble water outlet position;

[0036] Fig.10 A cross-sectional view of a faucet micro-bubble water outlet device provided in one embodiment of the present application Figure 4 , which shows the state where the housing is located at the shower water position;

[0037] Fig.11 A schematic diagram of the structure of a water inlet member provided in one embodiment of the present application;

[0038] Fig.12 A cross-sectional view of a faucet micro-bubble water outlet device provided in one embodiment of the present application Figure 5 ;

[0039] Fig.13 A cross-sectional view of a faucet micro-bubble water outlet device provided in one embodiment of the present application Figure 6 ;

[0040] Fig.14 A schematic diagram of the structure of a water outlet provided in one embodiment of the present application;

[0041] Fig.15 A schematic structural diagram of a water outlet component provided in another embodiment of the present application.

[0042] List of parts and reference numerals:

[0043] 1 shell, 11 outer shell, 12 inner shell, 121 bubble chamber, 122 water inlet jet hole, 1221 conical speed increasing area, 123 partition wall, 124 water dividing chamber, 125 shower water hole, 126 rotation limiting convex part, 13 shower water outlet chamber, 14 rotating part, 141 buckle;

[0044] 2 gas-liquid mixing element, 21 microbubble generating cavity, 22 gas-liquid mixing hole, 221 conical diffusion area, 222 water flow bifurcation ribs, 23 side concave area, 24 top concave area;

[0045] 3 air inlet cavity, 31 vertical air inlet cavity, 32 horizontal air inlet cavity;

[0046] 4 foaming net;

[0047] 5. Dividers;

[0048] 6 water inlet part, 61 water inlet part, 611 water outlet hole, 612 water inlet cavity, 613 limiting groove, 62 limiting wall, 621 clamping rib, 63 annular groove;

[0049] 7 sealing body, 71 water hole;

[0050] 8 water outlet parts, 81 bubble water outlet area, 82 air inlet area, 83 shower water outlet area, 84 bubble water outlet hole, 85 air inlet hole, 86 shower water outlet hole, 87 limit table;

[0051] 9 Install the arm. DETAILED DESCRIPTION

[0052] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0053] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0054] In addition, in the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "lateral", "longitudinal", etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0055] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0057] In the embodiment of the present application, a faucet micro-bubble water outlet device is provided. For the convenience of explanation and understanding, the following contents provided in the present application are all explained on the basis of the illustrated product structure. Of course, those skilled in the art can understand that the above structure is only used as a specific example and schematic description, and cannot constitute a specific limitation of the technical solution provided in the present application.

[0058] like Figures 1 to 8 As shown, a faucet microbubble water outlet device provided in the present application includes a shell 1 and a gas-liquid mixing element 2, the shell 1 is provided with a bubble chamber 121 and a water inlet jet hole 122 provided at the top of the bubble chamber 121, the gas-liquid mixing element 2 is provided in the bubble chamber 121, and an air inlet chamber 3 connected to the outside atmosphere is formed between the gas-liquid mixing element 2 and the shell 1, the gas-liquid mixing element 2 is also provided with a microbubble generating chamber 21, the gas-liquid mixing element 2 is connected with the air inlet chamber 3 and the microbubble generating chamber 21 by setting a gas-liquid mixing hole 22, the water inlet jet hole 122 is connected with the air inlet chamber 3, and water is introduced into the microbubble generating chamber 21 through the gas-liquid mixing hole 22, and a bubble net 4 is provided on the fluid path in the microbubble generating chamber 21.

[0059] The faucet micro-bubble water outlet device provided by the present application has an air-liquid mixing element 2 in the bubble chamber 121 of the shell 1 to form an air inlet chamber 3 between the shell 1, and the air inlet chamber 3 is connected to the outside atmosphere, so that the outside airflow can enter the gas-liquid mixing hole 22 through the air inlet chamber 3, and a micro-bubble generating chamber 21 is provided in the gas-liquid mixing element 2, and the gas-liquid mixing hole 22 connects the air inlet chamber 3 and the micro-bubble generating chamber 21. When the high-speed water flow discharged from the faucet enters the shell 1, the water flow enters the bubble chamber 121 through the water inlet jet hole 122. And enter the micro-bubble generating chamber 21 through the gas-liquid mixing hole 22, and at the same time, negative pressure is formed near the gas-liquid mixing hole 22, generating a Venturi effect, forming a siphon effect on the airflow in the air inlet chamber 3, and then bringing the airflow into the gas-liquid mixing hole 22 to achieve water-gas mixing. Sufficient airflow and water flow are mixed in the gas-liquid mixing hole 22 to form bubble water, and then enter the micro-bubble generating chamber 21, and then pass through the bubble net 4 to rectify and refine the bubbles, reduce the bubble diameter, and increase the micro-bubble content, which helps to improve the flushing and cleaning effect. The faucet micro-bubble water outlet device of the present application has a simple structure, is easy to assemble, and is highly practical.

[0060] The present application does not limit the structure of the air inlet cavity 3 formed between the gas-liquid mixing element 2 and the shell 1. For example, the air inlet cavity 3 can be arranged circumferentially around the gas-liquid mixing element 2, or can extend in a spiral along the gas-liquid mixing element 2, or can be a straight cavity structure. Of course, it can also be other suitable structures.

[0061] As a preferred embodiment, Figures 5 to 8 As shown, the outer contour of the gas-liquid mixing element 2 is adapted to the inner contour of the bubble cavity 121, and the side wall of the gas-liquid mixing element 2 is formed into a vertical air inlet cavity 31 with the inner wall of the bubble cavity 121 by setting a side recessed area 23, and the bottom opening of the vertical air inlet cavity 31 is connected to the outside atmosphere, and the top wall of the gas-liquid mixing element 2 is formed into a transverse air inlet cavity 32 with the inner top wall of the bubble cavity 121 by setting a top recessed area 24, and the transverse air inlet cavity 32 and the vertical air inlet cavity 31 are connected and matched to form the air inlet cavity 3, and the gas-liquid mixing hole 22 is arranged in the transverse air inlet cavity 32. There is no limitation on the structure of the outer contour of the gas-liquid mixing element 2 and the inner contour of the bubble chamber 121. For example, they can be designed as regular contour structures such as cylindrical contour and cubic contour. Since the outer contour of the gas-liquid mixing element 2 is adapted to the inner contour of the bubble chamber 121, when the gas-liquid mixing element 2 is loaded into the bubble chamber 121, its outer surface is tightly abutted against the inner surface of the bubble chamber 121, and the air inlet chamber 3 is divided into a vertical air inlet chamber 31 and a horizontal air inlet chamber 32 by the side recessed area 23 and the top recessed area 24. The bottom of the vertical air inlet chamber 31 is open and connected to the outside world, so that the outside atmosphere enters the gas-liquid mixing hole 22 through the vertical air inlet chamber 31 and the horizontal air inlet chamber 32 in turn. It is understandable to those skilled in the art that, under normal household water pressure conditions, the smaller the average diameter of the bubbles, the better the microbubble effect. If the air inlet cavity 3 is too small, it is easy to cause insufficient air intake, resulting in failure to generate sufficient microbubbles. If the air inlet cavity 3 is too large, the increased gas content will cause large bubbles to escape from the gas-liquid mixing hole 22 without mixing with the water flow, making it difficult to generate fine microbubbles. Therefore, the present application encloses the air inlet cavity 3 by designing the side recessed area 23 and the top recessed area 24 in the gas-liquid mixing element 2, which helps to improve the structural layout of the air inlet cavity 3, avoid the air inlet cavity 3 being too large, causing large bubbles to escape from the gas-liquid mixing hole 22 and making it difficult for the water flow to generate fine microbubbles, and also avoid the air inlet cavity 3 being too small, causing insufficient gas content in the bubble water and not conducive to the generation of dense microbubbles. Specifically, the size of the air inlet cavity 3 can be determined by the width and depth of the side recessed area 23 and the top recessed area 24.

[0062] In a preferred embodiment, Figure 5 and Figure 8As shown, the vertical air inlet cavity 31 is distributed on two opposite sides of the bubbling cavity 121, and the two ends of the transverse air inlet cavity 32 respectively penetrate the vertical air inlet cavity 31 on both sides, and the gas-liquid mixing hole 22 is arranged in the middle of the top recessed area 24, and the width dimension of the top recessed area 24 is set to D, and the diameter of the gas-liquid mixing hole 22 is set to d, wherein D is 0.8-1.2 times of d. It can be understood by those skilled in the art that by distributing the vertical air inlet cavity 31 on two opposite sides of the bubbling cavity 121, and the two ends of the transverse air inlet cavity 32 respectively penetrate the vertical air inlet cavity 31 on both sides, so that when the high-speed water flow is ejected from the water inlet jet hole 122 and enters the microbubble generating cavity 21 through the gas-liquid mixing hole 22, the negative pressure at the gas-liquid mixing hole 22 simultaneously inhales air through the vertical air inlet cavity 31 on both sides, so that the air flow is mixed into the water flow on both sides, which is conducive to uniform mixing of water and gas, thereby improving the uniformity of the distribution of microbubbles in the microbubble water and improving the microbubble water discharge effect. The width dimension of the top recessed area 24 is 0.8-1.2 times the diameter of the gas-liquid mixing hole 22, which further optimizes the structure of the air inlet cavity 3, avoids the air inlet cavity 3 being too large or too small, and effectively increases the content of fine microbubbles. For example, when the diameter d of the gas-liquid mixing hole 22 is 10 mm, the width dimension D of the top recessed area 24 can be 8 mm, 12 mm, or any number between 8 mm and 12 mm.

[0063] As a preferred implementation of the present application, Figure 3 and Figure 8 As shown, at least part of the water inlet jet hole 122 is configured as a conical speed-increasing area 1221 with a gradually decreasing inner diameter from top to bottom; the water inlet jet hole 122 is vertically coaxially arranged with the gas-liquid mixing hole 22, and the diameter of the bottom opening of the water inlet jet hole 122 is smaller than the diameter of the top opening of the gas-liquid mixing hole 22. Specifically, the top opening of the water inlet jet hole 122 is schematically illustrated as being chamfered to form a conical speed-increasing area 1221, so that when the water flows into the water inlet jet hole 122, the conical speed-increasing area 1221 can converge and rectify the divergent water flow, prevent the water flow from diverging into the bubbling chamber 121, and increase the flow rate of the water flow, thereby increasing the jet speed, so as to ensure the generation of a high-speed jet that gathers toward the center, thereby generating an effective negative pressure effect, and stably sucking the air flow from the air inlet cavity 3 into the gas-liquid mixing hole 22. Figure 8In the figure, the diameter of the bottom opening of the water inlet jet hole 122 is indicated as D1, and the diameter of the top opening of the gas-liquid mixing hole 22 is indicated as D2, D1<D2, the water inlet jet hole 122 and the gas-liquid mixing hole 22 are arranged vertically coaxially, and the diameter of the bottom opening of the water inlet jet hole 122 is smaller than the diameter of the top opening of the gas-liquid mixing hole 22, so that the water flow is converged and rectified into a high-speed beam through the water inlet jet hole 122 and then vertically injected into the gas-liquid mixing hole 22, effectively avoiding the water flow from splashing toward the lateral air inlet cavity 32, and effectively preventing the lateral air inlet cavity 32 from storing water and affecting the air intake effect.

[0064] In a preferred embodiment, Figure 3 and Figure 7 As shown, at least part of the gas-liquid mixing hole 22 is configured as a conical diffusion zone 221 with an inner diameter gradually increasing from top to bottom, and the conical diffusion zone 221 includes a plurality of water flow bifurcation ribs 222 distributed along the circumferential direction. It can be understood by those skilled in the art that, through this design, after the gas and water flow are mixed in the gas-liquid mixing hole 22 to form bubble water, they can diffuse outward through the conical diffusion zone 221 and be divided into multiple water flows under the action of the water flow bifurcation ribs 222, which helps to evenly distribute the bubble water on the bubble net 4. On the one hand, it can make full use of various parts of the bubble net 4 to rectify and refine the bubbles, reduce the bubble diameter, and increase the microbubble content. On the other hand, it can also effectively avoid the phenomenon of water discharge from a local position of the bubble net 4 and affect the water type of the water discharge.

[0065] As a preferred implementation of the present application, Figure 1 and Figure 7 As shown, a plurality of the bubbling nets 4 are provided on the fluid path in the microbubble generating chamber 21, and the plurality of the bubbling nets 4 are separated by a separator 5. A plurality of bubbling nets 4 are provided, so that the bubble water in the microbubble generating chamber 21 needs to pass through multiple bubbling nets 4 to rectify and refine the bubbles, and the bubbles are fully cut multiple times, so as to effectively reduce the bubble diameter and increase the microbubble content. The plurality of bubbling nets 4 are separated by a separator 5 to prevent the two adjacent bubbling nets 4 from being attached to each other, so that the lower bubbling net 4 blocks the mesh of the upper bubbling net 4 and interferes with the water discharge. Preferably, the separator 5 can be selected as an annular structure, and abuts against the edge of the bubbling net 4, which only has a certain effect on the water permeability of the mesh at the edge of the bubbling net 4. The water supply flow in the middle of the annular structure flows from top to bottom, and the microbubble water can still be discharged smoothly. The number of bubbling nets 4 is not limited. For example, three bubbling nets 4 located at the upper, middle and lower positions can be separated by two separators 5.

[0066] As a preferred implementation of the present application, Figures 1 to 3 as well as Fig. 9 and Fig.10As shown, the housing 1 is provided with a shower water outlet cavity 13, and the device further comprises a water inlet member 6, the water inlet member 6 is provided with a water outlet hole 611 for discharging water to the housing 1, and the housing 1 is rotatably connected to the water inlet member 6 so as to be switchable between the bubble water position and the shower water position; in the bubble water position, the water outlet hole 611 is connected to the water inlet jet hole 122; in the shower water position, the water outlet hole 611 is connected to the shower water outlet cavity 13. The water inlet member 6 is used to guide the water flow discharged from the faucet into the housing 1, and the water flow first enters the water inlet member 6, then enters the housing 1, and then is diverted through the housing 1. Fig.10 The figure shows the state where the housing 1 is located at the shower water position. Fig.10 The arrows in the figure represent the flow path of the water. Fig. 9 The figure shows the state where the housing 1 is located in the bubble water position. Fig. 9 The arrows in represent the flow paths of water flow and air flow. Specifically, when the housing 1 is in the bubble water position, the water outlet hole 611 is connected to the water inlet jet hole 122, so that the faucet microbubble water outlet device can discharge microbubble water; when the housing 1 is in the shower water position, the water outlet hole 611 is connected to the shower water outlet chamber 13, so that the faucet microbubble water outlet device can discharge shower water. Therefore, the faucet microbubble water outlet device of the present application is compatible with both shower water and bubble water functions, so that the user can switch the water outlet mode according to needs. When strong water flushing is required, the faucet microbubble water outlet device can provide strong shower water that is ejected, and when water-saving flushing is required, the faucet microbubble water outlet device can provide dense microbubble water, especially in the process of cleaning items with stubborn oil stains, the impact of the microbubble bursting when the microbubble water contacts the cleaned items can have a better flushing effect on the stubborn oil stains on the cleaned items, which can improve the cleanliness. The housing 1 is rotatably connected to the water inlet 6, so that the housing 1 can be freely switched between the bubble water position and the shower water position by rotation. For example, rotating the housing 1 clockwise switches it from the bubble water position to the shower water position, while rotating the housing 1 counterclockwise switches it from the shower water position to the bubble water position. The operation is convenient and the structure is simple and compact. The water inlet 6 can be a part directly connected to the faucet or a part indirectly connected to the faucet, for example, Figure 2 As shown, the water inlet part 6 can be connected to the faucet through the mounting arm 9. Threads are arranged at both ends of the mounting arm 9. The thread at one end is connected to the water inlet part 6, and the thread at the other end is connected to the faucet. The mounting arm 9 is hollow in structure. Water from the faucet first enters the water inlet part 6 through the mounting arm 9, and then is discharged through the water outlet hole 611 and enters the housing 1.

[0067] Furthermore, if Figure 3 as well as Figures 9 to 11As shown, the housing 1 comprises an outer housing 11 and an inner housing 12. The inner housing 12 is divided into the bubbling chamber 121 and the water dividing chamber 124 located above the bubbling chamber 121 by a partition wall 123. The water inlet jet hole 122 is provided on the partition wall 123 and communicates with the water dividing chamber 124. The outer housing 11 and the inner housing 12 enclose the shower water outlet chamber 13. The inner housing 12 is provided with a flower hole 124 communicating with the water dividing chamber 124 and the shower water outlet chamber 13. Sprinkler hole 125; the water inlet member 6 includes a water inlet portion 61 having a water inlet cavity 612, the water outlet hole 611 is arranged at the water inlet portion 61, and the inner shell 12 is rotatably mounted on the water inlet portion 61 through the water dividing cavity 124; in the bubble water position, the water outlet hole 611 is offset from the shower water hole 125 and connected to the water inlet jet hole 122; in the shower water position, the water outlet hole 611 is connected to the shower water outlet cavity 13 through the shower water hole 125. In this solution, water discharged from the faucet first enters the water inlet cavity 612 of the water inlet member 6, and then is discharged through the water outlet hole 611. The flow direction of the water after being discharged from the water outlet hole 611 is determined by the position of the shell 1, such as Figure 3 and Fig. 9 As shown, when the housing 1 is located at the bubble water position, the water outlet hole 611 is misaligned with the shower water hole 125, that is, the water outlet hole 611 and the shower water hole 125 are in a disconnected state. At this time, the water outlet hole 611 is connected to the water inlet jet hole 122. After being discharged from the water outlet hole 611, the water flows to the water inlet jet hole 122 through the water dividing cavity 124, and then flows from the water inlet jet hole 122 to the bubbling cavity 121. After being mixed with the airflow in the gas-liquid mixing hole 22, the water is rectified by the bubbling net 4 in the micro-bubble generating cavity 21 to form micro-bubble water; Fig.10 As shown, when the housing 1 is in the shower water position, the water outlet hole 611 is directly connected to the shower water hole 125. At this time, the connection between the water outlet hole 611 and the water inlet jet hole 122 is cut off. After the water flows out of the water outlet hole 611, it enters the shower water outlet chamber 13 through the shower water hole 125 and is finally discharged in the form of shower water. Since the inner housing 12 is rotatably mounted with the water inlet portion 61 through the water dividing chamber 124, the water dividing chamber 124 can be rotated relative to the water inlet portion 61 to switch between the bubble water position and the shower water position. Moreover, the shower water outlet chamber 13 is arranged around the bubbling chamber 121 as a whole, so that the bubble water is discharged from the middle of the housing 1, and the bubble water is dense and dense, and the shower water is discharged from the periphery, and the shower water outlet surface is large. Specifically, the shower water hole 125 can be arranged on the side wall of the housing 1 to facilitate the connection between the water outlet hole 611 and the shower water outlet chamber 13.

[0068] In a preferred embodiment, Figure 1 and Fig.10As shown, a water outlet hole 611 may be provided on each of the two opposite sides of the side wall of the water inlet portion 61, a sealing body 7 is provided between the water inlet portion 61 and the inner shell 12, the sealing body 7 is relatively fixed to the inner shell 12 and is provided with a water through hole 71 facing the shower water hole 125; in the bubble water position, the water outlet hole 611 is misaligned with the water through hole 71 and the shower water hole 125 is isolated by the sealing body 7; Fig.10 As shown, in the shower water position, the water outlet hole 611 is directly opposite to the water through hole 71 and is connected to the shower water hole 125 through the water through hole 71. Preferably, the seal 7 can be made of elastic silicone seal, which is squeezed and deformed by interference fit and clamped between the water inlet 61 and the inner shell 12, thereby improving the isolation effect of the water outlet hole 611 from the shower water hole 125 and the water inlet jet hole 122.

[0069] In a preferred embodiment, Figure 3 and Fig.11 As shown, the inner housing 12 may be provided with a rotation limiting protrusion 126 protruding toward the water diversion chamber 124, and the outer wall of the water inlet 61 may be provided with a limiting groove 613 cooperating with the rotation limiting protrusion 126. The rotation limiting protrusion 126 abuts against one side wall of the limiting groove 613 to limit the housing 1 to the bubble water position, and the rotation limiting protrusion 126 abuts against the other side wall of the limiting groove 613 to limit the housing 1 to the shower water position. Through the cooperation between the rotation limiting protrusion 126 and the limiting groove 613, the process of the housing 1 rotating and switching between the bubble water position and the shower water position is guided. The rotation limiting protrusion 126 abuts against the side walls on both sides of the limiting groove 613 to limit the housing 1 to the bubble water position and the shower water position, respectively, so that the bubble water position and the shower water position constitute two extreme positions within the rotatable range of the housing 1, thereby improving the feel of the rotation operation and the in-position prompt effect. Fig.12 The figure shows a state where the rotation limiting protrusion 126 abuts against a side wall of the limiting groove 613 to limit the housing 1 to the shower water position. At this time, the water outlet 611 is connected to the shower water hole 125 through the water hole 71 of the sealing body 7. Fig.13 The figure shows a state where the rotation limiting protrusion 126 abuts against the other side wall of the limiting groove 613 to limit the housing 1 to the bubble water position, and at this time, the sealing body 7 isolates the water outlet 611 from the shower water hole 125. Preferably, a rotation limiting protrusion 126 can be provided on each of the two opposite sides of the inner housing 12, and a limiting groove 613 can also be provided on each of the two opposite sides of the water inlet 61. When the water dividing chamber 124 is sleeved on the water inlet 61, the rotation limiting protrusions 126 on both sides are respectively matched in the corresponding limiting grooves 613, so as to realize double-sided guidance and improve the assembly reliability and rotation feel of the housing 1.

[0070] In a preferred embodiment, Figure 1 , Figure 2 , Fig. 9 , Fig.10and Fig.14 As shown, the device also includes a water outlet member 8 installed at the bottom of the shell 1, and the water outlet member 8 includes, from the middle to the periphery, a bubble water outlet area 81 covering the bottom opening of the microbubble generating chamber 21, an air intake area 82 covering the bottom opening of the air intake chamber 3, and a shower water outlet area 83 covering the bottom opening of the shower water outlet chamber 13. The bubble water outlet area 81 is provided with a bubble water outlet hole 84 connecting the microbubble generating chamber 21 with the outside atmosphere, the air intake area 82 is provided with an air intake hole 85 connecting the air intake chamber 3 with the outside atmosphere, and the shower water outlet area 83 is provided with a shower water outlet hole 86 connecting the shower water outlet chamber 13 with the outside atmosphere. Preferably, in order to realize the discharge of shower water, a plurality of shower water outlet holes 86 can be evenly arranged along the circumference of the shower water outlet area 83. In addition, as Fig.14 As shown, the entire middle portion of the bubble water outlet area 81 can be hollowed out to form a larger shower water outlet hole 86, such as Fig.15 As shown, a plurality of evenly distributed shower water outlet holes 86 may be provided in the middle of the bubble water outlet area 81, so that the micro bubble water is evenly distributed and discharged through the plurality of shower water outlet holes 86. In addition, an upwardly extending limit platform 87 may be provided at the edge of the bubble water outlet area 81, such as Fig. 9 and Fig.14 As shown, the limiting platform 87 can be used to enter the bubble chamber 121, and the partition 5 and the bubble net 4 can be stopped to limit the partition 5 and the bubble net 4 in the microbubble generating chamber 21 to prevent them from falling out of the microbubble generating chamber 21. The water outlet 8 can be fixed to the bottom of the water distribution member by snapping. In addition, an air inlet 85 can be set on each of the two opposite sides of the air inlet area 82, and each air inlet 85 corresponds to a vertical air inlet cavity 31, so that the external air flow passes through the air inlet 85, the vertical air inlet cavity 31, and the horizontal air inlet cavity 32 in turn to enter the gas-liquid mixing hole 22.

[0071] In a preferred embodiment, Figure 3 , Fig. 9 and Fig.11As shown, the water inlet 6 also includes a limiting wall 62 circumferentially surrounding the outside of the water inlet 61, and the limiting wall 62 and the water inlet 61 form an annular groove 63. The top of the outer shell 11 and the inner shell 12 are connected by a rotating part 14. The top opening of the water diversion chamber 124 is sleeved with the water inlet 61 from bottom to top, and the rotating part 14 is embedded in the annular groove 63. The rotating part 14 is engaged with the limiting wall 62 by setting a buckle 141, so that the water inlet 6 and the shell 1 are relatively fixed in the axial direction. When the water inlet 6 and the shell 1 are assembled, the rotating part 14 needs to be embedded in the annular groove 63. Therefore, through the cooperation of the rotating part 14 and the annular groove 63, on the one hand, the shell 1 can be guided to rotate and switch between the bubble water position and the shower water position, and the rotation feel of the shell 1 can be improved. On the other hand, the shell 1 and the water inlet 6 can also be radially limited, so that the two form a relatively fixed relationship in the radial direction, ensuring reliable rotation cooperation between the two. In addition, by the engagement of the buckle 141 with the limiting wall 62, the water inlet 6 and the housing 1 are relatively fixed in the axial direction to form a lock, and a detachable lock is realized, which facilitates the internal cleaning of the water inlet 6 and the housing 1 after disassembly, effectively avoiding the generation of sanitary dead corners that are difficult to clean, helping to improve the cleaning effect and reduce bacterial growth. Specifically, a clamping rib 621 can be provided on the limiting wall 62, so that the buckle 141 is engaged with the clamping rib 621, and the clamping rib 621 extends along the circumference of the limiting wall 62, so that when the housing 1 rotates, the buckle 141 slides along the circumference of the clamping rib 621 with the rotation of the housing 1, thereby switching the engagement position.

[0072] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0073] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0074] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A faucet micro-bubble water outlet device, characterized in that: It includes a water inlet, a shell, a gas-liquid mixing element and a water outlet, wherein the water inlet is provided with a water outlet hole for discharging water to the shell, and the water outlet is installed at the bottom of the shell; The shell is provided with a bubble chamber and a water inlet jet hole provided at the top of the bubble chamber, the gas-liquid mixing element is provided in the bubble chamber, and forms an air inlet chamber connected to the outside atmosphere with the shell, the gas-liquid mixing element is also provided with a microbubble generating chamber, the gas-liquid mixing element is connected with the air inlet chamber and the microbubble generating chamber by providing a gas-liquid mixing hole, the water inlet jet hole is connected with the air inlet chamber, and water is introduced into the microbubble generating chamber through the gas-liquid mixing hole, and a bubble net is provided on the fluid path in the microbubble generating chamber.

2. The faucet micro-bubble water outlet device according to claim 1, characterized in that: The outer contour of the gas-liquid mixing piece is adapted to the inner contour of the bubble chamber, the side wall of the gas-liquid mixing piece is arranged with the inner wall of the bubble chamber to form a vertical air inlet cavity by setting a side recessed area, the bottom opening of the vertical air inlet cavity is connected to the outside atmosphere, the top wall of the gas-liquid mixing piece is arranged with the inner top wall of the bubble chamber to form a transverse air inlet cavity by setting a top recessed area, the transverse air inlet cavity and the vertical air inlet cavity are connected to form the air inlet cavity, and the gas-liquid mixing hole is arranged in the transverse air inlet cavity.

3. The faucet micro-bubble water outlet device according to claim 2, characterized in that: The vertical air inlet cavity is distributed on two opposite sides of the bubbling cavity, and the two ends of the transverse air inlet cavity respectively penetrate the vertical air inlet cavities on both sides. The gas-liquid mixing hole is arranged in the middle of the top recessed area, and the width dimension of the top recessed area is set to D, and the diameter of the gas-liquid mixing hole is set to d, wherein D is 0.8-1.2 times of d.

4. The faucet micro-bubble water outlet device according to claim 1, characterized in that: At least part of the water inlet jet hole is configured as a conical speed-increasing zone with an inner diameter gradually decreasing from top to bottom; the water inlet jet hole and the gas-liquid mixing hole are arranged vertically coaxially, and the diameter of the bottom opening of the water inlet jet hole is smaller than the diameter of the top opening of the gas-liquid mixing hole.

5. The faucet micro-bubble water outlet device according to claim 4, characterized in that: At least a portion of the gas-liquid mixing hole is configured as a conical diffusion zone with an inner diameter gradually increasing from top to bottom, and the conical diffusion zone includes a plurality of water flow bifurcation ribs distributed along the circumferential direction.

6. The faucet micro-bubble water outlet device according to claim 1, characterized in that: A plurality of the bubble generating nets are arranged on the fluid path in the micro-bubble generating chamber, and the plurality of bubble generating nets are separated by partitions.

7. The faucet micro-bubble water outlet device according to any one of claims 1 to 6, characterized in that: The shell is provided with a shower water outlet cavity, and the shell is rotatably connected to the water inlet member so as to be switchable between a bubble water position and a shower water position; in the bubble water position, the water outlet hole is connected to the water inlet jet hole; in the shower water position, the water outlet hole is connected to the shower water outlet cavity.

8. The faucet micro-bubble water outlet device according to claim 7, characterized in that: The shell comprises an outer shell and an inner shell, the inner shell is divided into the bubbling chamber and the water diversion chamber located above the bubbling chamber by a partition wall, the water inlet jet hole is arranged on the partition wall and connected to the water diversion chamber, the outer shell and the inner shell enclose the shower water outlet chamber, and the inner shell is provided with a shower water hole connecting the water diversion chamber and the shower water outlet chamber; The water inlet member includes a water inlet portion having a water inlet cavity, the water outlet hole is arranged at the water inlet portion, and the inner shell body is rotatably mounted on the water inlet portion through the water dividing cavity; in the bubble water position, the water outlet hole is offset from the shower water hole and connected to the water inlet jet hole; in the shower water position, the water outlet hole is connected to the shower water outlet cavity through the shower water hole.

9. The faucet micro-bubble water outlet device according to claim 8, characterized in that: The water outlet member includes, from the middle to the periphery, a bubble water outlet area covering the bottom opening of the microbubble generating chamber, an air intake area covering the bottom opening of the air intake chamber, and a shower water outlet area covering the bottom opening of the shower water outlet chamber. The bubble water outlet area is provided with a bubble water outlet hole connecting the microbubble generating chamber with the outside atmosphere, the air intake area is provided with an air intake hole connecting the air intake chamber with the outside atmosphere, and the shower water outlet area is provided with a shower water outlet hole connecting the shower water outlet chamber with the outside atmosphere.

10. The faucet micro-bubble water outlet device according to claim 8, characterized in that: The water inlet component also includes a limiting wall circumferentially surrounding the outside of the water inlet portion, the limiting wall and the water inlet portion form an annular groove, the outer shell and the top of the inner shell are connected by a rotating part, the top opening of the water diversion chamber is sleeved with the water inlet portion from bottom to top, and the rotating part is embedded in the annular groove, the rotating part is clamped with the limiting wall by setting a buckle, so that the water inlet component and the shell are relatively fixed along the axial direction.

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