Switching microbubble generation system and bathtub applying same
By designing and switching micro bubble generation system in micro bubble water equipment, using parallel Venturi paths and direct paths, combined with solenoid valve control, the problem that existing equipment cannot be compatible with the mass massage function of large water is solved, and micro bubble water and large water are realized The switching of flow water improves system performance and user experience.
Patent Information
- Application Number
- CN202421060583.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-16
AI Technical Summary
The existing micro-sparking water equipment is difficult to compatible with the hydraulic massage function of large water in the bathroom industry. The throat of the Venn tube causes the system flow to be reduced, which cannot meet the high flow demand.
A switching microbubble generation system is designed. By setting up parallel Venturi paths and direct paths in the water pipes and distribution pipes, and switching with electromagnetic or electric valve control valves, the switching of different water usage modes is achieved. Only one is needed. The water pump provides power, with a small overall size and low structural cost.
The switching use of micro-spark water and large-flow water is realized, which enhances the system's conveying volume and user experience, meets the needs of different bath modes, and saves installation space and costs.
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Figure CN222305422U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of micro-bubble generating equipment, in particular to a switching micro-bubble generating system and a bathtub using the same. Background Art
[0002] At present, microbubble water technology has been widely used in the field of cleaning and environmental management. Although there are many ways to produce microbubble water, the pressurized dissolved air method is often used in the bathroom industry. The principle of pressurized dissolved air can be explained as "intake pressure, water pressure reduction", that is, the pressure needs to be increased when the air is inlet, and the pressure needs to be reduced when the water is out, thus ensuring the process of air induction and air release. Some existing air induction processes use the negative pressure suction method of the Venturi tube, and the throat of the Venturi tube will reduce the flow of the system, which is not compatible with the function of large water volume hydraulic massage. Utility Model Content
[0003] The utility model aims to solve at least one of the above-mentioned technical problems in the related art to a certain extent. To this end, the utility model proposes a switching microbubble generating system.
[0004] To achieve the above purpose, the technical solution of the utility model is as follows:
[0005] The utility model also provides a water outlet switching control method with the above-mentioned switching micro-bubble generating system.
[0006] The switching microbubble generating system according to the first embodiment of the utility model comprises:
[0007] A water pump, the water pump having a first water inlet end and a first water outlet end;
[0008] A water pipe, the water pipe comprising a second water inlet end and a second water outlet end, a venturi passage and a straight passage connected in parallel are provided between the second water inlet end and the second water outlet end, the venturi passage has an air suction end, and the second water outlet end is connected to the first water inlet end;
[0009] A first control valve, used to control the opening and closing of the suction end;
[0010] A second control valve, used to control the opening and closing of the through passage;
[0011] A water distribution pipe, the water distribution pipe comprising a first pipeline and a second pipeline, the first pipeline and the second pipeline are connected to the first water outlet in parallel;
[0012] The third control valve is used to control the opening and closing of the second pipeline.
[0013] The switching microbubble generating system according to the embodiment of the utility model has at least the following beneficial effects: through the cooperation of the first control valve, the second control valve, and the third control, the opening and closing of each water channel in the water pipe and the water distribution pipe are controlled, so that the switching microbubble generating system has different water use modes, and only needs one water pump to provide power, the overall volume is small, the installation space is saved, and the structural cost is low.
[0014] According to some embodiments of the utility model, the Venturi passage includes a water inlet section, a necking section, a throat section, a flaring section and a water outlet section arranged in sequence, the water inlet section is closer to the second water inlet end than the water outlet section, the air suction end is connected to the flaring section, one end of the straight passage is connected to the necking section, and the other end of the straight passage is connected to the flaring section.
[0015] According to some embodiments of the present invention, the Venturi passage and the straight passage are integrally formed in the water pipe.
[0016] According to some embodiments of the utility model, the suction end is connected to a suction pipe, the first control valve is installed on the suction pipe, and a dustproof part is provided on the suction pipe.
[0017] According to some embodiments of the utility model, an emulsification component is installed at the connection between the water distribution pipe and the first water outlet, or an emulsification component is installed on the first pipeline, and a plurality of emulsification holes are opened on the emulsification component.
[0018] According to some embodiments of the utility model, the water distribution pipe includes a tee, a first joint and a second joint, the tee having a first end, a second end and a third end, the first end is connected to the first water outlet end, the first joint is connected to the second end, the first end, the second end and the first joint constitute the first pipeline, the second joint is connected to the third end, the first end, the third end and the second joint constitute the second pipeline, the third control valve is installed on the second joint, and a plurality of water outlet pipes are provided on the first joint and the second joint.
[0019] According to some embodiments of the present invention, a heating device is further included, and the heating device is installed on the water pipe or the water distribution pipe.
[0020] According to some embodiments of the present invention, the first control valve, the second control valve and the third control valve are solenoid valves or electric valves.
[0021] The bathtub according to the second embodiment of the present invention includes a switchable micro-bubble generating system.
[0022] The water outlet switching control method according to the embodiment of the utility model has at least the following beneficial effects: according to the selected water outlet mode, micro-bubble water or high-flow water is sprayed into the bathtub through the water distribution pipe, thereby realizing bathing in different modes.
[0023] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0025] Figure 1 is a schematic diagram of the structure of a switching microbubble generating system;
[0026] Figure 2 This is a schematic diagram of the assembly of the water pipe;
[0027] Figure 3 It is a schematic diagram of the internal structure of the water pipe;
[0028] Figure 4 It is a schematic diagram of the assembly of the water distribution pipe;
[0029] Figure 5 yes Figure 4 A cross-sectional view of the internal structure;
[0030] Figure 6 It is a schematic diagram of the structure of the emulsification component;
[0031] Figure 7 It is a structural diagram of a bathtub.
[0032] Figure numerals: water pump 100; first water inlet end 101; first water outlet end 102; water pipe 200; second water inlet end 201; second water outlet end 202; Venturi passage 210; suction end 211; water inlet section 212; contraction section 213; throat section 214; expansion section 215; water outlet section 216; straight passage 220; suction pipe 230; dustproof part 231; first control valve 310; second control valve 320; third control valve 330; water distribution pipe 400; first pipeline 410; second pipeline 420; emulsification component 430; emulsification hole 431; three-way pipe 440; first end 441; second end 442; third end 443; first joint 450; second joint 460; water outlet pipe 470. DETAILED DESCRIPTION
[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0034] The utility model relates to a switching micro-bubble generating system, comprising a water pump 100, a water pipe 200, a first control valve 310, a second control valve 320, a water distribution pipe 400 and a third control valve 330.
[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, according to the direction of water flow, the water pipe 200, the water pump 100 and the water distribution pipe 400 are connected in sequence. The water pump 100 has a first water inlet end 101 for water inlet and a first water outlet end 102 for water outlet. The water pipe 200 includes a second water inlet end 201 and a second water outlet end 202. The water pipe 200 is connected to the first water inlet end 101 of the water pump 100 through the second water outlet end 202. The water pump 100 preferably uses a multi-stage centrifugal pump, which has a multi-stage impeller inside. A venturi passage 210 and a straight passage 220 are provided between the second water inlet end 201 and the second water outlet end 202. The venturi passage 210 and the straight passage 220 are arranged in parallel on the water pipe 200. After the external water enters from the second water inlet end 201, it can be divided into the venturi passage 210 and the straight passage 220, and then both are discharged in the direction of the first water inlet end 101 through the second water outlet end 202. The water pipe 200 may be assembled from multiple pipe sections, for example, the Venturi passage 210 is arranged on the first pipe section, the straight passage 220 is arranged on the second pipe section, the two ends of the first pipe section serve as the second water inlet end 201 and the second water outlet end 202, and the second pipe section may be fixedly installed on the first pipe section by plugging, welding, buckling, etc., so as to assemble the water pipe 200. It may also be, for example Figure 3As shown, the venturi passage 210 and the straight passage 220 are integrally formed in the water pipe 200. The water pipe 200 is provided with an air suction end 211, which is connected to the venturi passage 210. When water flows in the venturi passage 210, the water forms a negative pressure under the action of the venturi, and the air suction end 211 sucks the outside air into the venturi passage 210 under the action of the negative pressure to mix with water to form mixed water. The first control valve 310 is used to control the opening and closing of the air suction end 211. The first control valve 310 can be a solenoid valve or an electric valve. The first control valve 310 can be set to a normally open state, that is, the air suction end 211 is in a ventilation state under normal conditions. When the first control valve 310 is switched to a closed state, the air suction end 211 can be closed and air cannot be sucked. The second control valve 320 can be installed on the water pipe 200, and the second control valve 320 is used to control the opening and closing of the straight passage 220. The second control valve 320 can be a solenoid valve or an electric valve. The second control valve 320 can be set to a normally closed state, that is, the direct passage 220 is closed and cannot pass water under normal conditions. When the second control valve 320 is switched to an open state, the direct passage 220 is opened to pass water. The water distribution pipe 400 is connected to the first water outlet 102 of the water pump 100. The water distribution pipe 400 is provided with a first pipeline 410 and a second pipeline 420, and the first pipeline 410 and the second pipeline 420 are in a parallel relationship. After the water in the water pump 100 enters the water distribution pipe 400 from the first water outlet 102, it can be diverted to the first pipeline 410 and the second pipeline 420, and the water in the first pipeline 410 and the water in the second pipeline 420 are outputted relatively independently. The third control valve 330 is installed on the second pipeline 420 to control the opening and closing of the second pipeline 420. The third control valve 330 can be a solenoid valve or an electric control valve. The third control valve 330 can be set to a normally closed state, that is, the second pipeline 420 is closed and cannot pass water under normal circumstances. When the third control valve 330 is switched to an open state, the second pipeline 420 is opened and water can pass. The first control valve 310, the second control valve 320, the third control and the water pump 100 can be electrically connected to an external control system to control the start and stop. When the through passage 220 is closed, the outside water only enters through the Venturi passage 210, which has a flow-limiting effect on the water, and at the same time absorbs the outside air to form a mixed water of water and gas, and forms smaller bubbles under the cutting action of the blades of the water pump 100, and then discharged to the outside through the first pipeline 410 of the water distribution pipe 400 for use. When the through passage 220 is opened, water is diverted to the through passage 220, reducing the flow limiting effect of the venturi passage 210 on the entire water pipe 200, thereby increasing the overall water delivery of the water pipe 200 to the water pump 100, and large-flow water is input into the water distribution pipe 400 and output at least through the first pipeline 410, or diverted to the first pipeline 410 and the second pipeline 420 for common output. In this way, the switching between large-volume water and small-volume microbubble water is achieved.Through the cooperation of the first control valve 310, the second control valve 320 and the third control, the opening and closing of each water channel in the water pipe 200 and the water distribution pipe 400 are controlled, so that the switching microbubble generating system has different water use modes, and only one water pump 100 is needed to provide power, the overall volume is small, the installation space is saved, and the structural cost is low.
[0036] Among them, switching the microbubble generating system involves a water outlet switching control method, which has at least a microbubble mode and a massage mode.
[0037] In the microbubble mode, the first control valve 310 is in an open state, the second control valve 320 and the third control valve 330 are in a closed state, that is, the air intake end 211 is open, and the through passage 220 and the second pipeline 420 are closed. The water pump 100 is started, and water enters the venturi passage 210 of the water pipe 200. The water forms a negative pressure in the venturi passage 210, and the outside air enters the venturi passage 210 through the air intake end 211 and mixes with the water to form mixed water. After the mixed water enters the water pump 100, it is further mixed and refined by the cutting action of the impeller of the water pump 100, and then discharged out through the first pipeline 410.
[0038] In the massage mode, the first control valve 310 is in a closed state, the second control valve 320 and the third control valve 330 are in an open state, that is, the air suction end 211 is closed, and the straight passage 220 and the second pipeline 420 are open. The water pump 100 is started, and water enters the water pipe 200. A part of the water flows through the venturi passage 210, but because the air suction end 211 is closed, the external gas does not enter the venturi passage 210, and the power output of the subsequent water pump 100 will not be reduced. Most of the water is diverted to the straight passage 220, and the straight passage 220 has an unlimited flow blocking effect on the water, and the water can flow smoothly, thereby increasing the delivery volume to the water pump 100. Under the pressurization of the water pump 100, the water is ejected outward through the first pipeline 410 and the second pipeline 420. Compared with the microbubble mode, a large flow of water can be ejected in the massage mode to impact the human body, thereby achieving a massage effect. By controlling the first control valve 310, the second control valve 320 and the third control valve 330, it is possible to switch between the massage mode and the micro bubble water mode at will, and the user experience is good.
[0039] In addition to the above modes, microbubble water and massage water can also be mixed for use. That is, the first control valve 310, the second control valve 320 and the third control valve 330 are all in an open state, and when water enters the water pipe 200, it is divided into the venturi passage 210 and the straight passage 220. The outside air enters the venturi passage 210 and mixes with the water. A part of the water flows through the straight passage 220. The water in the venturi passage 210 and the straight passage 220 merges and is transported to the water pump 100. In this way, bubble water massage is achieved.
[0040] This is an example, such as Figure 7 As shown, the switching microbubble generating system is applied to the bathtub. The water pipe 200 and the water distribution pipe 400 can be connected to the bathtub through pipes. Under the action of the water pump 100, the water in the bathtub is extracted for use, and then according to the selected water outlet mode, the microbubble water or the large flow water is sprayed into the bathtub after passing through the water distribution pipe 400, thereby realizing bathing in different modes. In the microbubble water mode, the microbubble water enters the bathtub. Due to the characteristics of the microbubbles such as large surface area, slow rising speed, negative surface charge, and high gas solubility rate, a large number of free radicals are generated when the microbubbles burst. The hydroxyl free radical has a very high redox potential, and the redox reaction it produces can degrade organic matter that is difficult to oxidize and decompose under normal conditions in the water, thereby achieving the effect of purifying the water quality, and having moisturizing, skin beautification and other care effects on human skin.
[0041] In some specific embodiments of the present invention, Figure 3As shown, the Venturi passage 210 includes an inlet section 212, a constricted section 213, a throat section 214, a flared section 215 and a water outlet section 216 arranged in sequence. The inlet section 212 is closer to the second water inlet end 201 than the water outlet section 216. When water enters the second water inlet end 201 and is diverted to the Venturi passage 210, it flows along the inlet section 212, the constricted section 213, the throat section 214, the flared section 215 and the water outlet section 216 in sequence. The constricted section 213 gradually shrinks in a constricted shape from the inlet section 212 to the throat section 214, and the inner diameter of the throat section 214, the inner diameter of the small end of the constricted section 213, and the inner diameter of the small end of the flared section 215 are the same. The flared section 215 gradually expands in a trumpet shape from the throat section 214 to the water outlet section 216. The air intake end 211 is connected to the flared section 215. When water flows through the flared section 215, negative pressure is formed, and the outside air enters the flared section 215 through the air inlet end 211, and then water and gas are mixed in the flared section 215 and the water outlet section 216. One end of the straight passage 220 is connected with the constricted section 213, and can be opened on the side wall of the constricted section 213. One end of the straight passage 220 is connected by plugging or directly forming on the side wall opening of the constricted section 213. The other end of the straight passage 220 is connected with the flared section 215. It can be opened on the side wall of the flared section 215, and the other end of the straight passage 220 is connected by plugging or directly forming on the side wall opening of the flared section 215. The second control valve 320 can be directly installed on the water pipe 200. When the second control valve 320 is selected as an electromagnetic valve, the iron core on the second control valve 320 is extended and retracted with the sealing sleeve relative to the straight passage 220, and when extended, the straight passage 220 can be blocked to a closed state. When the second control valve 320 switches the through passage 220 to an open state, water first enters the water inlet section 212, then is diverted to the through passage 220 from the side wall opening of the constricted section 213, flows through the through passage 220, enters the expanded section 215 from the side wall opening of the expanded section 215, and then is discharged from the water outlet section 216. This is equivalent to "short-circuiting" the constricted section 213 and the expanded section 215, and no longer passing through the throat section 214, thereby avoiding the flow resistance when flowing through the throat section 214.
[0042] In some embodiments of the present invention, Figure 2 As shown, the air intake end 211 is connected to an air intake pipe 230. The air intake pipe 230 is connected to the air intake end 211 by plugging, and the connection between the two is sealed. The first control valve 310 is installed on the air intake pipe 230, and controls the opening and closing of the air intake end 211 by controlling the opening and closing of the air intake pipe 230. A dustproof part 231 is provided on the air intake pipe 230. The dustproof part 231 can be a dust filter net, etc. The dustproof part 231 is used to isolate foreign matter in the air to prevent the dust suction end from being blocked.
[0043] In some specific embodiments of the present invention, Figure 4 , Figure 5 and Figure 6 As shown, it also includes an emulsifying component 430. The emulsifying component 430 can be installed on one end of the water distribution pipe 400 connected to the first water outlet end 102. Alternatively, the emulsifying component 430 is installed on the first pipeline 410. A plurality of emulsifying holes 431 are provided on the emulsifying component 430. The emulsifying component 430 can be a plate-like component or a cover-like component. In the present embodiment, the emulsifying component 430 is in the shape of a cover with an axial protrusion in the middle. The emulsifying holes 431 are distributed on the circumferential side wall of the emulsifying component 430. Water is transported from the first water outlet end 102 of the water pump 100 to the water distribution pipe 400. Before the water enters the first pipeline 410, it first passes through the emulsifying component 430 and is slowly released to the first pipeline 410 through each emulsifying hole 431, which can ensure the generation of microbubble water. In the microbubble mode, the emulsifying component 430 can slow down the speed of water flowing from the water pump 100 to the first pipeline 410, increase the time the water stays in the water pump 100, and further increase the time the impeller in the water pump 100 cuts the bubbles in the water, thereby improving the microbubble generation effect.
[0044] In some specific embodiments of the present invention, Figure 4 and Figure 5 As shown, the water distribution pipe 400 includes a three-way pipe 440, a first joint 450 and a second joint 460. The three-way pipe 440 has a first end 441, a second end 442 and a third end 443. The first end 441 is connected to the first water outlet end 102, and the first joint 450 is connected to the second end 442. Along the water flow direction, the first end 441, the second end 442 and the first joint 450 form a first pipeline 410. The second joint 460 is connected to the third end 443, and the first end 441, the third end 443 and the second joint 460 form a second pipeline 420. Several interfaces can be provided on the first joint 450 and the second joint 460, and each interface is connected to a water outlet pipe 470. The first joint 450 and the second joint 460 are respectively diverted and transported outward through different water outlet pipes 470. The nozzles of each water outlet pipe 470 are connected to different positions of the bathtub, so that water can be sprayed at different positions of the bathtub.
[0045] The system further includes a heating device. The heating device may be an electric heating coil structure. The heating device is installed on the water pipe 200 or the water distribution pipe 400. The heating device is used to heat the water entering the switching microbubble generating system to maintain a constant temperature, so that the water is sprayed out to a temperature suitable for the human body.
[0046] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0047] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" 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 or an electrical connection; 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 the present invention can be understood according to specific circumstances.
[0048] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0049] In the description of this specification, the description of reference terms such as "some specific embodiments" 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 utility model. 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.
[0050] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A switching microbubble generating system, characterized in that: include: A water pump (100), the water pump (100) having a first water inlet end (101) and a first water outlet end (102); A water pipe (200), the water pipe (200) comprising a second water inlet end (201) and a second water outlet end (202), a venturi passage (210) and a straight passage (220) connected in parallel are provided between the second water inlet end (201) and the second water outlet end (202), the venturi passage (210) having an air suction end (211), and the second water outlet end (202) being in communication with the first water inlet end (101); A first control valve (310) for controlling the opening and closing of the air intake end (211); A second control valve (320) for controlling the opening and closing of the through passage (220); A water distribution pipe (400), the water distribution pipe (400) comprising a first pipeline (410) and a second pipeline (420), the first pipeline (410) and the second pipeline (420) being connected in parallel to the first water outlet (102); The third control valve (330) is used to control the opening and closing of the second pipeline (420).
2. The switching microbubble generating system according to claim 1, characterized in that: The Venturi passage (210) comprises a water inlet section (212), a constricted section (213), a throat section (214), a flared section (215), and a water outlet section (216) arranged in sequence; the water inlet section (212) is closer to the second water inlet end (201) than the water outlet section (216); the air intake end (211) is in communication with the flared section (215); one end of the straight passage (220) is in communication with the constricted section (213); and the other end of the straight passage (220) is in communication with the flared section (215).
3. The switching microbubble generating system according to claim 2, characterized in that: The Venturi passage (210) and the straight passage (220) are integrally formed in the water pipe (200).
4. The switching microbubble generating system according to claim 2, characterized in that: The air intake end (211) is connected to an air intake pipe (230), the first control valve (310) is mounted on the air intake pipe (230), and a dustproof part (231) is provided on the air intake pipe (230).
5. The switching microbubble generating system according to claim 1, characterized in that: An emulsification component (430) is installed at the connection between the water distribution pipe (400) and the first water outlet end (102), or an emulsification component (430) is installed on the first pipeline (410), and a plurality of emulsification holes (431) are provided on the emulsification component (430).
6. The switching microbubble generating system according to claim 1, characterized in that: The water distribution pipe (400) comprises a three-way pipe (440), a first joint (450) and a second joint (460); the three-way pipe (440) has a first end (441), a second end (442) and a third end (443); the first end (441) is connected to the first water outlet end (102); the first joint (450) is connected to the second end (442); the first end (441), the second end (442) and the first joint (450) form the first pipeline (410); the second joint (460) is connected to the third end (443); the first end (441), the third end (443) and the second joint (460) form the second pipeline (420); the third control valve (330) is mounted on the second joint (460); and a plurality of water outlet pipes (470) are provided on the first joint (450) and the second joint (460).
7. The switching microbubble generating system according to claim 1, characterized in that: It also includes a heating device, which is installed on the water pipe (200) or the water distribution pipe (400).
8. The switching microbubble generating system according to claim 1, characterized in that: The first control valve (310), the second control valve (320) and the third control valve (330) are solenoid valves or electric valves.
9. A bathtub, characterized in that: A switching microbubble generating system comprising the switching microbubble generating system as described in any one of claims 1 to 8.
Citation Information
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Switching microbubble generation system, water outlet switching control method applying same and bathtub
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