Microbubble device and bathtub faucet applying same
By designing the structure of the negative pressure chamber, mixing chamber, and generation chamber, and utilizing the Venturi effect to generate bubble water, the problem of water leakage in microbubble devices was solved, achieving efficient generation of microbubble water and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN FAENZA SANITARY WARE
- Filing Date
- 2024-12-07
- Publication Date
- 2026-04-28
AI Technical Summary
Existing microbubble devices are prone to water leakage at the air intake holes, affecting normal air intake and user experience, and are also costly and noisy.
Design a microbubble device that uses the Venturi effect to generate bubble water. Through the structural design of the negative pressure chamber, mixing chamber and generating chamber, water is prevented from rebounding into the negative pressure chamber to avoid water leakage. The air inlet is hidden by a threaded connection to prevent debris from clogging it.
It achieves efficient microbubble water formation, avoids water leakage, improves user experience, and reduces device noise and cost.
Smart Images
Figure CN224173425U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to water outlet equipment, and in particular to a microbubble device and a bathtub faucet using the same. Background Technology
[0002] Most microbubble structures on the market rely on air pumps for air circulation, which is costly and noisy. Some microbubble devices utilize the Venturi effect to achieve self-aspiration and bubble water formation, but during use, it has been found that the air intake holes of microbubble devices are prone to water leakage, which not only affects the normal air intake of the device, but also affects the user experience. Utility Model Content
[0003] This invention aims to at least partially solve one of the aforementioned technical problems in the related art. To this end, this invention proposes a microbubble device and a bathtub faucet using the same.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows:
[0005] According to a first aspect of the present invention, a microbubble device includes a body, the body having a water inlet, a negative pressure chamber, a mixing chamber, a generating chamber and a water outlet connected in sequence, the plurality of water inlets being opened within a circumferential range of one end face of the body, an air inlet being provided on the side wall of the negative pressure chamber, the maximum water-passing cross-sectional area of the negative pressure chamber being not less than the area of the circumferential range, and a filter screen being provided between the generating chamber and the water outlet;
[0006] The maximum distance between the sidewalls of the two farthest inlets is A, and the diameter of the upstream port of the mixing chamber along the water flow direction is B, which satisfies B. <A。
[0007] The microbubble device according to the present invention has at least the following beneficial effects: it utilizes the Venturi effect to form bubble water and can effectively prevent water that rebounds in the mixing chamber from flowing back into the negative pressure chamber, thereby preventing water from overflowing from the air inlet.
[0008] According to some embodiments of this utility model, the value range between A and B satisfies 0.8A. <B<A。
[0009] According to some embodiments of the present invention, a rectifier cavity is provided between the negative pressure cavity and the mixing cavity. The rectifier cavity is a conical cavity, and the rectifier cavity gradually narrows towards the mixing cavity.
[0010] According to some embodiments of the present invention, the main body includes a first connector and a second connector, the water inlet is opened on the first connector, the mixing chamber, the generating chamber and the water outlet are disposed in the second connector, the first connector and the second connector define an air inlet chamber and a negative pressure chamber, the air inlet chamber communicates with the outside of the main body, and the air inlet chamber communicates with the negative pressure chamber through the air inlet.
[0011] According to some embodiments of the present invention, the first connector and the second connector are connected by threads, and the threaded connection between the first connector and the second connector has an air gap, and the air inlet cavity communicates with the outside of the body through the air gap.
[0012] According to some embodiments of the present invention, the second connecting member includes a first mounting base and a second mounting base, the second mounting base and the first connecting member are threaded together, the first mounting base is clamped between the first connecting member and the second mounting base, the mixing chamber and the generating chamber are disposed in the first mounting base, the water outlet is disposed in the second mounting base, and the filter screen is clamped between the mixing chamber and the water outlet.
[0013] According to some embodiments of the present invention, the first connector has an inner cavity, the water inlet is opened on one end face of the inner cavity, the cavity wall of the inner cavity extends into a first extension wall, the first extension wall is cylindrical and surrounds the circumference, the second connector extends into a second extension wall, the second connector is inserted into the inner cavity, the second extension wall and the first extension wall are connected to each other to form the negative pressure cavity, and the water inlet is opened on the first extension wall or the second extension wall.
[0014] According to some embodiments of the present invention, the outer wall of the first connector is provided with external threads.
[0015] According to some embodiments of the present invention, the minimum cross-sectional area of the generating chamber is greater than the cross-sectional area of the downstream port of the mixing chamber.
[0016] According to some embodiments of this utility model, the negative pressure cavity is a cylindrical cavity of equal diameter, and the cross-sectional area of the negative pressure cavity is larger than the area of the circumference.
[0017] A bathtub faucet according to a second aspect of the present invention includes a microbubble device.
[0018] The bathtub faucet according to the present invention has at least the following beneficial effects: it can efficiently generate microbubble water and can prevent water from overflowing from the air inlet.
[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0021] Figure 1 This is a cross-sectional view of the internal structure of a microbubble device;
[0022] Figure 2 yes Figure 1 A structural decomposition diagram;
[0023] Figure 3 This is an exploded structural diagram of a microbubble device;
[0024] Figure 4 yes Figure 3 Another perspective illustration.
[0025] Reference numerals: Body 100; First connector 110; Inner cavity 111; First extension wall 112; Second connector 120; First mounting base 121; Second mounting base 122; Second extension wall 123; Water inlet 210; Negative pressure chamber 220; Air inlet 221; Mixing chamber 230; Generating chamber 240; Water outlet 250; Rectifying chamber 260; Air inlet chamber 270; Air passage gap 280; Circumferential range 300; Filter screen 400. Detailed Implementation
[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0027] This utility model relates to a microbubble device, which can be applied to water-using equipment such as spray guns, shower heads, and faucets. This utility model applies the microbubble device to a bathtub faucet. The microbubble device includes a main body. Figure 1 , Figure 2 and Figure 3As shown in the figure, the main body 100 is provided with a water inlet 210, a negative pressure chamber 220, a mixing chamber 230, a generating chamber 240 and a water outlet 250 which are connected in sequence. Among them, the water inlet 210, the negative pressure chamber 220, the mixing chamber 230, the generating chamber 240 and the water outlet 250 can be distributed in sequence along the same axis on the main body. In the direction shown in the figure, a plurality of water inlets 210 are opened on the upper end surface of the main body 100, and each water inlet 210 is distributed within a circumferential range 300. The upper end surface of the main body 100 is set as a circular plane. The circumferential range 300 can be the peripheral range of the upper end surface of the main body 100, or it can also be a range with a diameter smaller than the diameter of the upper end surface of the main body 100. An air inlet 221 is opened on the side wall of the negative pressure chamber 220. The maximum water passing cross-sectional area of the negative pressure chamber 220 is not less than the area of the circumferential range 300, that is, the maximum water passing cross-sectional area of the negative pressure chamber 220 is greater than the sum of the water passing cross-sectional areas of each water inlet 210. The negative pressure chamber 220 can be set as a cylindrical cavity with equal diameter everywhere, and then the radial cross-sectional area of the negative pressure chamber 220 is its maximum water passing cross-section. The negative pressure chamber 220 can also be set as a conical cavity or other cavity structures of other shapes. Preferably, the negative pressure chamber 220 is a cylindrical cavity with equal diameter, and the water passing cross-sectional area of the negative pressure chamber 220 is greater than the area of the circumferential range 300. The water outlet 250 is arranged on the end of the main body far from the water inlet 210. A filter screen 400 is arranged between the generating chamber 240 and the water outlet 250. The filter screen 400 can be set with one layer, two layers or more. When two or more filter screens 400 are set, the mesh numbers of each filter screen 400 are different. Among them, in the circumferential range 300, the maximum distance between the side walls of the two water inlets 210 farthest apart is A. The diameter of the upstream port of the mixing chamber 230 in the water flow direction is B, and it satisfies B < A.
[0028] During use, the upper part of the main body is connected to an external water supply system such as the pipeline of a water heater or a tap water system. External water is sprayed into the negative pressure chamber 220 through each water inlet 210. According to the Venturi effect, a negative pressure is formed in the water flow in the negative pressure chamber 220, and air in the external environment of the main body is sucked into the negative pressure chamber 220 through the air inlet 221. The water and air are transported to the mixing chamber 230 and initially mixed, and then sprayed into the generating chamber 240 through the mixing chamber 230. The water and air are ejected out of the water outlet 250 through the filter screen 400 in the generating chamber 240, and the water bubbles in the water are cut to form micro-bubble water when passing through the filter screen 400. Part of the water and air will be blocked by the filter screen 400 and rebound in the generating chamber 240 in the direction of the mixing chamber 230. Due to the above size B < A, after a part of the water is sprayed into the negative pressure chamber 220 from the water inlet 210, it will inevitably flow along the cavity wall of the mixing chamber 230 towards the generating chamber 240, which can effectively block the water rebounding in the generating chamber 240 from flowing back to the negative pressure chamber 220 through the mixing chamber 230, thereby avoiding water from overflowing from the air inlet 221.
[0029] In some specific embodiments of the present utility model, the value range between A and B satisfies 0.8A < B < A. When the external water supply system is a low-pressure water supply, this size range can better prevent the occurrence of the situation where the low-pressure water in the cavity 240 flows back to the negative pressure cavity 220.
[0030] In some specific embodiments of the present utility model, a rectifying cavity 260 is provided between the negative pressure cavity 220 and the mixing cavity 230. The rectifying cavity 260 is a conical cavity, and the rectifying cavity 260 gradually narrows towards the mixing cavity 230. The negative pressure cavity 220 can be set as a cylindrical cavity with the same diameter everywhere, and the rectifying cavity 260 is set as a cylindrical cavity with the same diameter everywhere. The inner diameter of the upstream end of the rectifying cavity 260 is the same as the inner diameter of the negative pressure cavity 220, and the inner diameter of the downstream end of the rectifying cavity 260 is the same as the inner diameter of the mixing cavity 230. The water and gas in the negative pressure cavity 220 are rectified in the rectifying cavity 260 before entering the mixing cavity 230. At the same time, a part of the water inlet 210 is axially opposite to the cavity wall of the rectifying cavity 260, and water is directly sprayed into the cavity wall of the rectifying cavity 260, and the water flows into the mixing cavity 230 along the cavity wall of the rectifying cavity 260. Through the conical cavity of the rectifying cavity 260, the water and gas are aggregated towards the mixing cavity 230, thereby further preventing water from flowing back from the mixing cavity 230 to the negative pressure cavity 220.
[0031] In some embodiments of the present utility model, as Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, the body 100 includes a first connector 110 and a second connector 120. The outsides of the first connector 110 and the second connector 120 can be set as cylindrical shapes. The water inlet 210 is opened on the first connector 110. The upper end surface of the first connector 110 can be set as a flat surface. External threads can be provided on the circumferential outer wall of the upper part of the first connector 110, and the body 100 is threadedly connected to the pipe body of the external water supply system through the external threads of the first connector 110, so as to facilitate the installation of the microbubble device. The mixing cavity 230, the generating cavity 240 and the water outlet 250 are arranged in the second connector 120. The first connector 110 and the second connector 120 are connected, and an air inlet cavity 270 and a negative pressure cavity 220 are defined inside after the two are connected. The air inlet cavity 270 can be arranged around the negative pressure cavity 220. The air inlet cavity 270 is communicated with the outside of the body 100, and the air inlet cavity 270 is communicated with the negative pressure cavity 220 through the air inlet 221. The air in the external environment of the body 100 flows into the negative pressure cavity 220 through the air inlet cavity 270 and the air inlet 221. It is equivalent to hiding the air inlet 221 inside the body 100 to avoid solid debris in the environment being directly sucked into the air inlet 221 and blocking the air inlet 221.
[0032] Furthermore, the lower part of the first connector 110 is provided with an external thread, and the second connector 120 is provided with an internal thread. The second connector 120 is sleeved on the first connector 110, and the first connector 110 and the second connector 120 are connected by threads, which facilitates the installation of the first connector 110 and the second connector 120. The threaded connection between the first connector 110 and the second connector 120 has an air gap 280, and the air intake chamber 270 is connected to the external environment of the body 100 through the air gap 280. Air intake is carried out through the air gap 280 between the threads, which can block debris in the external environment and prevent blockage of the air intake port 221.
[0033] The second connecting member 120 includes a first mounting base 121 and a second mounting base 122. The second mounting base 122 is sleeved on the lower part of the first connecting member 110, and the second mounting base 122 and the first connecting member 110 are threaded together. The second mounting base 122 is sleeved outside the first mounting base 121, which may be provided with a step on the lower inner wall of the second mounting base 122, and the lower end of the first mounting base 121 abuts against the step. The upper part of the first mounting base 121 is inserted into and abuts against the first connecting member 110, and the first mounting base 121 is clamped between the first connecting member 110 and the second mounting base 122 for fixation. The mixing chamber 230 and the generating chamber 240 are disposed in the first mounting base 121, and the outlet 250 is disposed in the second mounting base. The filter screen 400 is clamped between the mixing chamber 230 and the outlet 250, that is, the filter screen 400 is clamped between the lower end of the first mounting base 121 and the step inside the second mounting base 122. This facilitates the installation and removal of the first connector 110, the first mounting base 121, the second mounting base 122, and the filter screen 400. After the first mounting base 121 is installed on the first connector 110, the inner wall of the first connector 110 and the outer wall of the first mounting base 121 form an air intake chamber 270.
[0034] The first connector 110 may have an internal cavity 111. The internal cavity 111 opens downwards. A water inlet 210 is located on the upper end face of the internal cavity 111. A first extension wall 112 extends downwards from the upper wall of the internal cavity 111. The first extension wall 112 is cylindrical and surrounds a circumference 300. A second extension wall 123 extends upwards from the upper part of the second connector 120. The inner diameter of the first extension wall 112 is the same as the inner diameter of the second extension wall 123. The second connector 120 is inserted into the internal cavity 111, and the second extension wall 123 and the first extension wall 112 abut against each other. The interior of the first extension wall 112 and the interior of the second extension wall 123 cooperate to form a negative pressure cavity 220. The water inlet 210 is located on the first extension wall 112 or the second extension wall 123. Preferably, the water inlet 210 is located on the first extension wall 112.
[0035] Preferably, the minimum water passage cross-sectional area of the generating chamber 240 is greater than the water passage cross-sectional area of the downstream port of the mixing chamber 230. The generating chamber 240 can be configured as a cylindrical cavity with a uniform diameter throughout, in which case the radial cross-sectional area of the generating chamber 240 is its minimum water passage area. When some water encounters the filter screen 400 and bounces back in the generating chamber 240, it can bounce back into the upper cavity wall of the generating chamber 240, reducing the impact of water vapor on the downstream end of the mixing chamber 230.
[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0040] In the description of this specification, references to terms such as "some specific embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A microbubble device, characterized in that: The device includes a main body (100), which has a water inlet (210), a negative pressure chamber (220), a mixing chamber (230), a generating chamber (240), and a water outlet (250) connected in sequence. The multiple water inlets (210) are located within a circumferential range (300) on one end face of the main body (100). An air inlet (221) is provided on the side wall of the negative pressure chamber (220). The maximum water flow cross-sectional area of the negative pressure chamber (220) is not less than the area of the circumferential range (300). A filter screen (400) is provided between the generating chamber (240) and the water outlet (250). Among them, the maximum distance between the sidewalls of the two farthest water inlets (210) is A, and the diameter of the upstream port of the mixing chamber (230) along the water flow direction is B, which satisfies B. <A。 2. The microbubble device according to claim 1, characterized in that: The range of values between A and B satisfies 0.8A. <B<A。 3. The microbubble device according to claim 1 or 2, characterized in that: A rectifier cavity (260) is provided between the negative pressure cavity (220) and the mixing cavity (230). The rectifier cavity (260) is a conical cavity, and the rectifier cavity (260) gradually shrinks towards the mixing cavity (230).
4. The microbubble device according to claim 1, characterized in that: The main body (100) includes a first connector (110) and a second connector (120). The water inlet (210) is opened on the first connector (110). The mixing chamber (230), the generating chamber (240) and the water outlet (250) are disposed in the second connector (120). An air inlet chamber (270) and a negative pressure chamber (220) are defined between the first connector (110) and the second connector (120). The air inlet chamber (270) is connected to the outside of the main body (100). The air inlet chamber (270) is connected to the negative pressure chamber (220) through the air inlet (221).
5. The microbubble device according to claim 4, characterized in that: The first connector (110) and the second connector (120) are connected by threads, and the threaded connection of the first connector (110) and the second connector (120) has an air gap (280). The air inlet (270) communicates with the outside of the body (100) through the air gap (280).
6. The microbubble device according to claim 4 or 5, characterized in that: The second connector (120) includes a first mounting base (121) and a second mounting base (122). The second mounting base (122) is threadedly connected to the first connector (110). The first mounting base (121) is clamped between the first connector (110) and the second mounting base (122). The mixing chamber (230) and the generating chamber (240) are disposed in the first mounting base (121). The water outlet (250) is disposed in the second mounting base (122). The filter screen (400) is clamped between the mixing chamber (230) and the water outlet (250).
7. The microbubble device according to claim 4, characterized in that: The first connector (110) has an inner cavity (111), and the water inlet (210) is opened on one end face of the inner cavity (111). The cavity wall of the inner cavity (111) extends into a first extension wall (112), which is cylindrical and surrounds the circumferential range (300). The second connector (120) extends into a cylindrical second extension wall (123). The second connector (120) is inserted into the inner cavity (111), and the second extension wall (123) and the first extension wall (112) are connected to each other to form the negative pressure cavity (220). The water inlet (210) is opened on the first extension wall (112) or the second extension wall (123).
8. The microbubble device according to claim 4, characterized in that: The outer wall of the first connector (110) is provided with external threads.
9. The microbubble device according to claim 1, characterized in that: The minimum cross-sectional area of the generating chamber (240) is greater than the cross-sectional area of the downstream port of the mixing chamber (230).
10. The microbubble device according to claim 1, characterized in that: The negative pressure cavity (220) is a cylindrical cavity of equal diameter, and the cross-sectional area of the negative pressure cavity (220) is larger than the area of the circumference range (300).
11. A microbubble device and a bathtub faucet using the same, characterized in that: Includes the microbubble device according to any one of claims 1 to 10.