Waterway system and sparkling water machine
By designing an air vent valve and a normally open air valve in the water system, combined with water level detection, the risk of pressure exceeding the safety threshold during water intake by the sparkling water machine is resolved, achieving the effect of continuously providing sparkling water and accurately controlling water temperature and volume.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-03-17
AI Technical Summary
Existing sparkling water machines are prone to causing the pressure inside the sparkling water container to exceed the safety threshold during the user's water dispensing process because the gas filling rate is faster than the water replenishment rate, posing a risk of explosion. At the same time, they cannot continuously provide sparkling water.
The system employs a water circuit, including a water supply unit, a gas supply unit, and a mixing unit. It is equipped with two pre-set exhaust valves and a normally open gas valve, combined with a water level detection unit and multiple pipeline designs, to ensure smooth mixing of gas and liquid, and to maintain the mixed gas cylinder at zero or negative pressure when liquid water is input.
It achieves stable pressure inside the gas cylinder during user water collection, avoiding the risk of explosion, while continuously providing sparkling water, and precisely controls water temperature and volume through a multi-pipeline design.
Smart Images

Figure CN223994718U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of household appliance technology, and in particular to a water system and a bubble water machine. Background Technology
[0002] As living standards improve, sparkling water machines that can make sparkling water are gradually entering people's lives.
[0003] Sparkling water machines typically have a sparkling water container. In the sparkling water container, drinking water is mixed with gas (usually carbon dioxide) to create sparkling water.
[0004] In existing technologies, some sparkling water machines first fill the sparkling water container with drinking water. When the liquid level reaches a preset height, gas is then introduced to generate sparkling water. However, such sparkling water machines cannot continuously provide sparkling water to users; that is, they cannot continue making sparkling water while the user is taking it. Other sparkling water machines that can continuously produce sparkling water typically continuously pressurize the sparkling water container with gas. During the user's water intake process, when the liquid level drops to a preset height, water is added to the sparkling water container. However, the rate at which gas fills the sparkling water container is much higher than the rate at which drinking water is added. This can lead to a situation where the sparkling water container is already full of gas when the liquid level is low. If drinking water then enters the sparkling water container, the pressure inside will exceed a safe pressure threshold, posing a risk of explosion. Utility Model Content
[0005] In order to solve the above-mentioned problems in the prior art, this utility model provides a water circuit system and a bubble water machine.
[0006] The above-mentioned problems of this utility model are solved by the following technical solution:
[0007] A water system comprising, sequentially connected by pipes,
[0008] The water supply unit includes at least a clean water tank for supplying water to the water supply circuit;
[0009] The gas supply unit includes a high-pressure gas cylinder for outputting high-pressure gas;
[0010] The mixing unit includes a mixing cylinder with a water inlet and a steam inlet connected to a water supply unit and a steam supply unit, respectively, and an outlet for outputting bubbled water after the vapor-liquid mixture.
[0011] The mixed gas cylinder also has an exhaust end, on which a first exhaust valve and a second exhaust valve are connected via a three-way connector, and the preset values of the first exhaust valve and the second exhaust valve are different.
[0012] A further setting of the above technical solution is: the preset value of the first exhaust valve is less than the preset value of the second exhaust valve.
[0013] A further provision of the above technical solution is that a normally open air valve is provided between the first exhaust valve and the three-way connector.
[0014] A further provision of the above technical solution is that the mixed gas cylinder is equipped with a water level detection unit for detecting the liquid level inside the mixed gas cylinder.
[0015] A further provision of the above technical solution is that a refrigeration unit is provided between the water supply unit and the mixing unit, the refrigeration unit includes a cold tank, and the mixing unit is provided with a cold water end that communicates with the cold tank.
[0016] A further provision of the above technical solution is that a diaphragm pump is provided between the cooling tank and the mixing unit.
[0017] A further provision of the above technical solution is that the water supply unit is also connected to a heating unit, which is a heating element with a heating tube.
[0018] A sparkling water machine includes a housing and the aforementioned water system. The housing is provided with a pure water nozzle and a sparkling water nozzle. The pure water nozzle is connected to the water supply unit, the cooling unit, and the heating unit. The sparkling water nozzle is connected to the mixed gas cylinder.
[0019] A further configuration of the above technical solution is as follows: the water supply unit and the pure water tap are connected through a pure water pipeline and a first drain valve is provided; the refrigeration unit and the pure water tap are connected through an ice water pipeline and a second drain valve is provided; the heating unit and the pure water tap are connected through a hot water pipeline and a third drain valve is provided.
[0020] A further setting of the above technical solution is: one of the first drain valve, the second drain valve and the third drain valve can be opened.
[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0022] 1. Two vent valves with different preset values are set to vent gas from the mixing cylinder at different pressures, ensuring that the high pressure in the mixing cylinder can be discharged smoothly, thereby enabling the gas-liquid mixing to proceed smoothly;
[0023] 2. Connect a normally open gas valve to the gas mixing cylinder so that the gas mixing cylinder is in a zero pressure or negative pressure state when liquid water is introduced, thereby accelerating the input of liquid water;
[0024] 3. Multiple different pipelines are set up to connect to the pure water faucet to output pure water at different temperatures, and the program settings allow different pipelines to be opened selectively, thereby accurately controlling the temperature and volume of the output water. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the water circuit in Example 1.
[0026] Figure 2 for Figure 1 Enlarged structural diagram of part A in the middle.
[0027] Figure 3 This is a schematic diagram of the exploded structure of Example 2.
[0028] The attached diagram is labeled: 100, clean water tank;
[0029] 200. High-pressure gas cylinder;
[0030] 300. Mixed gas cylinder;
[0031] 400. First exhaust valve;
[0032] 500. Second exhaust valve;
[0033] 610. High water level probe; 620. Low water level probe;
[0034] 700, Cold Gallbladder;
[0035] 800, Heat pump;
[0036] 900. Housing; 910. Pure water nozzle; 920. Soda nozzle;
[0037] 1. T-joint; 2. Exhaust connector; 3. Disinfection device; 4. Inlet valve; 5. Low temperature detection device; 6. Diaphragm pump; 7. Check valve; 8. First drain valve; 9. Second drain valve; 10. Third drain valve; 11. Temperature detection device; 12. Filter assembly; 12.1. First filter element; 12.2. Second filter element; 13. Booster pump; 14. Low-pressure switch; 15. High-pressure switch; 16. Wastewater discharge pipeline. Detailed Implementation
[0038] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0039] like Figure 1-3 As shown in the following embodiments, a water system and a bubble water machine having the water system are disclosed.
[0040] Example 1
[0041] A water system comprising, sequentially connected by pipes,
[0042] The water supply unit includes at least a clean water tank 100 for supplying water to the water supply circuit;
[0043] The gas supply unit includes a high-pressure gas cylinder 200 for outputting high-pressure gas;
[0044] The mixing unit includes a mixing gas cylinder 300, which has a water inlet and a steam inlet connected to a water supply unit and a steam supply unit respectively, and has a water outlet to output bubbled water after the gas-liquid mixture.
[0045] The mixed gas cylinder 300 also has an exhaust end, and the exhaust end is connected to a first exhaust valve 400 and a second exhaust valve 500 through a three-way connector 1, and the preset values of the first exhaust valve 400 and the second exhaust valve 500 are different.
[0046] The above is the basic scheme of this embodiment.
[0047] Specific reference Figure 1 As shown, when making sparkling water, the water tank 100 supplies water, and the room temperature purified water is input into the mixing cylinder 300. At the same time, the high pressure cylinder 200 inputs high pressure gas into the mixing cylinder 300. The liquid water and high pressure gas are mixed in the mixing cylinder 300 to form sparkling water, which is output from the output end of the mixing cylinder 300.
[0048] The method for producing sparkling water is the same as the existing technology that uses high-pressure gas and liquid water to form sparkling water, and will not be elaborated here.
[0049] During the process of inputting high-pressure gas into the mixing cylinder 300, if too much high-pressure gas is input into the mixing cylinder 300, the pressure inside the mixing cylinder 300 will be too high. Therefore, in this embodiment, an exhaust end is provided on the mixing cylinder 300 to output the high-pressure gas inside the mixing cylinder 300 from the exhaust end.
[0050] In this embodiment, a T-joint 1 is provided on the pipeline connected to the exhaust end, and at least two exhaust pipelines are provided through the T-joint 1. A first exhaust valve 400 and a second exhaust valve 500 are respectively provided in the two exhaust pipelines. Furthermore, the preset values of the two exhaust valves are different, and one of the exhaust valves is used as a backup exhaust valve.
[0051] Preferably, both the first exhaust valve 400 and the second exhaust valve 500 are high-pressure exhaust valves.
[0052] Preferably, in this embodiment, an air inlet valve 4 is provided between the high-pressure gas cylinder 200 and the mixed gas cylinder 300 to control the opening and closing of the air inlet pipeline.
[0053] Preferably, in this embodiment, the preset value of the first exhaust valve 400 is less than the preset value of the second exhaust valve 500.
[0054] In this embodiment, the preset value of the first exhaust valve 400 is set to 0.4 MPa, and the preset value of the second exhaust valve 500 is 0.6 MPa. When the high-pressure gas cylinder 200 inputs gas into the mixing gas cylinder 300, if the gas pressure inside the mixing gas cylinder 300 is too high, pressure is released through the exhaust end. When the gas pressure inside the mixing gas cylinder 300 is less than 0.4 MPa, the high-pressure gas is discharged from the first exhaust valve 400. As the input high-pressure gas increases, when the gas pressure inside the mixing gas cylinder 300 exceeds 0.6 MPa, the first exhaust valve 400 cannot discharge the high-pressure gas in time. Therefore, some of the high-pressure gas enters another exhaust pipe, activating the second exhaust valve 500, which then opens to release pressure.
[0055] In this embodiment, a normally open air valve is provided between the first exhaust valve 400 and the three-way connector 1.
[0056] When the water supply unit and the gas supply unit are turned on, the normally open gas valve is opened at the same time. The gas pressure of the normally open gas valve is set manually. The purpose is to ensure that when the water tank 100 inputs liquid water into the mixing gas cylinder 300, the mixing gas cylinder 300 is in a state of no pressure or negative pressure, so that the water in the water tank 100 can smoothly and even accelerate into the mixing gas cylinder 300.
[0057] In this embodiment, exhaust connectors 2 are provided at the ends of the two exhaust pipes.
[0058] In this embodiment, in order to detect the liquid level in the mixing cylinder 300 so as to better mix the gas and liquid, a water level detection unit is provided in the mixing cylinder 300 to detect the liquid level in the mixing cylinder 300.
[0059] Specifically, the water level detection unit includes a high water level probe 610 and a low water level probe 620, which detect the lowest and highest liquid levels in the mixing cylinder 300, respectively. When the liquid level is lower than the position of the low water level probe 620, water needs to be supplied to the mixing cylinder 300; when the liquid level touches the position of the high water level probe 610, water supply to the mixing cylinder 300 needs to be stopped.
[0060] In this embodiment, a disinfection device 3 is also provided inside the mixed bubbles.
[0061] Specifically, in this embodiment, the disinfection device 3 is located inside the mixing gas cylinder 300 and is installed at a high position in the mixing gas cylinder 300 to disinfect the liquid surface below.
[0062] Preferably, in this embodiment, the disinfection device 3 is an ultraviolet disinfection lamp. Furthermore, to prevent ultraviolet disinfection from contacting the liquid surface inside the gas mixing cylinder 300, the disinfection device 3 is positioned higher than the high water level probe 610, as detailed below. Figure 2 As shown.
[0063] To enhance the functionality of the water system, this embodiment can also produce low-temperature sparkling water. Specifically, a refrigeration unit is provided between the water supply unit and the mixing unit. The refrigeration unit includes a cold tank 700, and the mixing unit is provided with a cold water end that communicates with the cold tank 700.
[0064] Specific reference Figure 1 As shown, the water tank 100 is provided with a first water outlet, which is connected to the cold tank 700 through a pipeline, and the second water outlet of the cold tank 700 is connected to the water inlet of the mixing cylinder 300 through a pipeline.
[0065] When low-temperature sparkling water needs to be produced, the refrigeration unit is turned on, and the room temperature water in the clean water tank 100 enters the cold tank 700 and is cooled to form low-temperature water. The low-temperature water enters the mixing gas cylinder 300 through the second water outlet to produce low-temperature sparkling water.
[0066] In this embodiment, the structure of the cooling liner 700 is the same as that of the cooling liner 700 in the prior art, and will not be described in detail here.
[0067] Preferably, in this embodiment, the cold tank 700 is equipped with a low-temperature detection device 5 for monitoring the temperature of the low-temperature water inside the cold tank 700.
[0068] In addition, in this embodiment, a diaphragm pump 6 is provided between the cooling tank 700 and the mixing cylinder 300. The diaphragm pump 6, also known as a control pump, is a primary type of actuator that receives control signals from the modulation unit. It has excellent self-priming performance, can start without liquid, and does not require an additional liquid supply. Furthermore, the flow rate of the diaphragm pump 6 can be adjusted as needed to meet the requirements of different applications. Moreover, the diaphragm pump 6 has good corrosion resistance, can transport various corrosive media, and has a wide range of applications.
[0069] Based on the above settings, the flow rate of room temperature or low temperature water output by the cold tank 700 can be controlled to meet the optimal dissolution ratio of high pressure gas and liquid.
[0070] In this embodiment, the water supply unit is also connected to a heating unit, and the hot water unit is a heating element 800 with a heating tube inside.
[0071] The input terminals of the clean water tank 100 and the heating tank 800 are connected and equipped with a one-way valve 7; the outlet valve of the heating tank 800 is connected to the cold tank 700. A temperature detection device 11 is installed on the heating tank 800.
[0072] In this embodiment, the water supply unit further includes a filter assembly 12, which includes a first filter element 12.1 and a second filter element 12.2 connected in sequence to the external water inlet end. The second filter element 12.2 is provided with a wastewater outlet end.
[0073] Preferably, in this embodiment, the filter material in the first filter element 12.1 is PP and granular carbon, and the second filter element 12.2 is provided with an RO membrane.
[0074] When the external water source supplies water to the water purification tank 100, the source water passes through the first filter element 12.1 and the second filter element 12.2 in sequence along the pipeline. When the liquid water passes through the first filter element 12.1, impurities are adsorbed by PP and granular activated carbon. When it passes through the second filter element 12.2, it is filtered by the reverse osmosis of the RO membrane, thereby preventing impurities such as inorganic salts, heavy metal ions, organic matter, colloids, bacteria, and viruses in the source water from passing through the RO membrane. This strictly separates the pure water that can pass through from the concentrated water that cannot.
[0075] Therefore, the water entering the water purification tank 100 is pure liquid water.
[0076] Based on the above settings, when the water tank 100 supplies water to the water supply circuit, scale and other impurities will not form in the heating or cooling units, thus extending the service life of the heating element 800 and the cooling element.
[0077] In this embodiment, a booster pump 13 is provided between the first filter element 12.1 and the second filter element 12.2.
[0078] The working principle of the booster pump 13 is as follows: First, the booster pump 13 is filled with liquid, and then the centrifugal pump is started. The impeller rotates rapidly, and the blades of the impeller drive the liquid to rotate. When the liquid rotates, it flows towards the outer edge of the impeller due to inertia. At the same time, the impeller draws in liquid from the suction chamber. During this process, the liquid in the impeller flows around the blades. In the flow motion, the liquid exerts a lift force on the blades. Conversely, the blades exert a force on the liquid with a force equal in magnitude and opposite in direction to this lift force. This force does work on the liquid, so that the liquid gains energy and flows out of the impeller. At this time, the kinetic energy and pressure energy of the liquid both increase.
[0079] In this embodiment, a booster pump 13 is provided between the first filter element 12.1 and the second filter element 12.2, so that the source water after sequential filtration passes through the RO membrane in the second filter element 12.2 at a greater speed and pressure, thereby improving the filtration speed and filtration effect.
[0080] Furthermore, a wastewater discharge pipe 16 is connected to the second filter element 12.2 for discharging wastewater.
[0081] In this embodiment, a low-pressure switch 14 is provided at the input end of the first filter element 12.1.
[0082] Preferably, the low-pressure switch 14 in this embodiment is a pressure-controlled low-pressure switch 14. The pressure-controlled low-pressure switch 14 is an electrical component that controls the entire circuit to disconnect when the water supply pressure of the entire system is too low or there is no water, thereby protecting the service life of the pump and preventing the system pump from running dry.
[0083] Furthermore, a high-pressure switch 15 is provided between the second filter element 12.2 and the water tank 100.
[0084] Example 2
[0085] This embodiment discloses a sparkling water machine, including the water system described in Embodiment 1, and also includes a housing 900. The housing 900 is provided with a pure water nozzle 910 and a sparkling water nozzle 920. The pure water nozzle 910 is connected to the water supply unit, the cooling unit and the heating unit, and the sparkling water nozzle 920 is connected to the mixed gas cylinder 300.
[0086] Specific reference Figure 1 and Figure 3 As shown, the water tank 100 is located on the upper part of the casing 900.
[0087] Furthermore, a filter assembly is provided inside the casing 900, which is connected to the water purification tank 100 to filter and purify the liquid water in the water purification tank 100.
[0088] To ensure that room temperature water, ice water, and hot water are all output from the pure water tap 910, in this embodiment, the water supply unit and the pure water tap 910 are connected through a pure water pipeline and a first drain valve 8 is provided; the refrigeration unit and the pure water tap 910 are connected through an ice water pipeline and a second drain valve 9 is provided; the heating unit and the pure water tap 910 are connected through a hot water pipeline and a third drain valve 10 is provided.
[0089] Specific reference Figure 1 As shown, the first drain valve 8 controls the water outlet of the pure water pipeline, the second drain valve 9 controls the water outlet of the chilled water pipeline, and the third drain valve 10 controls the water outlet of the hot water pipeline.
[0090] To avoid confusion when water flows out of the three pipes, in this embodiment, one of the first drain valve 8, the second drain valve 9, and the third drain valve 10 is opened.
[0091] When the first drain valve 8 is opened, the other two drain valves are closed. At this time, only pure water at room temperature is output from the pure water nozzle 910. When the second drain valve 9 is opened, the other two drain valves are closed. At this time, only ice water is output from the pure water nozzle 910. When the third drain valve 10 is opened, the other two drain valves are closed. At this time, only hot water is output from the pure water nozzle 910.
[0092] Based on the above settings, it is convenient to control the water temperature and flow rate output by the pure water faucet 910, avoiding the inability to control the water temperature and flow rate due to multiple pipes outputting water at the same time.
[0093] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A waterway system characterized by: The water supply unit comprises at least a water purifying tank (100) for supplying water to the water path. The gas supply unit comprises a high-pressure gas cylinder (200) for outputting high-pressure gas. The mixing unit comprises a mixing gas cylinder (300) having a water inlet end and a gas inlet end connected to the water supply unit and the gas supply unit respectively, and having a water outlet end for outputting bubble water after mixing of water and gas. The mixing gas cylinder (300) further has a gas outlet end, and the gas outlet end is connected with a first gas outlet valve (400) and a second gas outlet valve (500) through a tee joint (1), and the preset values of the first gas outlet valve (400) and the second gas outlet valve (500) are different. The preset value of the first gas outlet valve (400) is smaller than the preset value of the second gas outlet valve (500).
2. The waterway system of claim 1, wherein: A normally open gas valve is arranged between the first gas outlet valve (400) and the tee joint (1).
3. The water routing system of claim 2, wherein: The mixing gas cylinder (300) is provided with a water level detection unit for detecting the liquid level in the mixing gas cylinder (300).
4. The water routing system of claim 1, wherein: A refrigeration unit is arranged between the water supply unit and the mixing unit, and the refrigeration unit comprises a cold cylinder (700), and the mixing unit is provided with a cold water end in communication with the cold cylinder (700).
5. The waterway system of claim 1, wherein: A diaphragm pump (6) is arranged between the cold cylinder (700) and the mixing unit.
6. The waterway system of claim 5, wherein: The water supply unit is further connected with a heating unit, and the heating unit is a hot cylinder (800) provided with a heating tube.
7. The waterway system of claim 6, wherein: The water path system of claim 7 is further arranged in a machine shell (900), and the machine shell (900) is provided with a pure water nozzle (910) and a bubble water nozzle (920), the pure water nozzle (910) is in communication with the water supply unit, the refrigeration unit and the heating unit, and the bubble water nozzle (920) is in communication with the mixing gas cylinder (300).
8. A sparkling water machine characterized by: The water supply unit and the pure water nozzle (910) are in communication through a pure water path, and are provided with a first water discharge valve (8); the refrigeration unit and the pure water nozzle (910) are in communication through an ice water path, and are provided with a second water discharge valve (9); and the heating unit and the pure water nozzle (910) are in communication through a hot water path, and are provided with a third water discharge valve (10).
9. The sparkling water machine of claim 8, wherein: The first water discharge valve (8), the second water discharge valve (9) and the third water discharge valve (10) are opened alternatively.
10. The sparkling water machine of claim 9, wherein: