Air pressure protection structure of a bubble machine and bubble machine thereof

Abstract

The application discloses a gas pressure protection structure of a bubble machine and the bubble machine, and the gas pressure protection structure comprises the following: a pipe, a pipe hole of a second communication end forms a first step hole; a connecting pipe assembly, a large hole of the first step hole is inserted; the position of a pipe hole of the connecting pipe assembly corresponds to the position of a small hole of the first step hole; a metal sheet is configured to close the pipe hole of the connecting pipe assembly and the small hole of the first step hole; a first sealing element is configured to seal the connecting pipe assembly and the large hole of the first step hole; when the pressure of the mixing chamber is greater than a first preset pressure, the metal sheet is broken; and the first preset pressure is greater than the atmospheric pressure. The metal sheet of the application can withstand a larger gas pressure and is used for a long time, so that when the pressure of the mixing chamber is greater than the first preset pressure, the metal sheet is broken under pressure, the gas in the mixing chamber can be discharged through the first communication end, the second communication end and the connecting pipe assembly, the gas pressure in the mixing chamber is reduced, the mixing chamber is protected, and the mixing chamber is prevented from being damaged due to being stretched.

Description

Technical Field

[0001] This invention relates to the field of bubble machine technology, and more particularly to a pressure protection structure for a bubble machine and the bubble machine thereof. Background Technology

[0002] A sparkling water machine (also known as a carbonated beverage machine) refers specifically to a machine used to produce sparkling water, which is typically an aqueous solution containing dissolved carbon dioxide. Other additives can be added to sparkling water to create carbonated beverages. Sparkling water machines are usually equipped with high-pressure carbon dioxide cylinders. At room temperature and pressure, carbon dioxide has low solubility in water, so pressure is needed to increase its solubility. Under high pressure, carbon dioxide gas is forced to dissolve in the water, forming sparkling water.

[0003] In existing technologies, the mixing chamber of a bubble machine needs to be injected with high-pressure carbon dioxide. Excessive pressure in the mixing chamber can damage it.

[0004] Therefore, existing technologies still need to be improved and developed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a pressure protection structure for a bubble machine and a bubble machine thereof, in order to solve the problem that excessively high air pressure in the mixing chamber of a bubble machine can cause damage to the mixing chamber in the prior art.

[0006] The technical solution adopted by this invention to solve the technical problem is as follows:

[0007] A pressure protection structure for a bubble machine, comprising:

[0008] The fitting has a first connecting end and a second connecting end, the first connecting end being connected to the mixing chamber of the bubble machine, and the tube hole of the second connecting end forming a first stepped hole;

[0009] A connecting pipe assembly is inserted into the large hole of the first stepped hole and connected to the outside of the second communicating end; the position of the pipe hole of the connecting pipe assembly corresponds to the position of the small hole of the first stepped hole;

[0010] A metal sheet is configured to close the tube hole of the connecting tube assembly and the small hole of the first stepped hole;

[0011] A first seal is configured to seal the large hole of the connecting pipe assembly and the first stepped hole;

[0012] Specifically, the metal sheet ruptures when the pressure in the mixing chamber exceeds a first preset pressure; the first preset pressure is greater than atmospheric pressure.

[0013] The air pressure protection structure of the bubble machine, wherein the connecting pipe assembly includes:

[0014] An internal tube is located inside the large hole of the first stepped hole;

[0015] An external tube is located outside the first stepped hole and connected to the outside of the second connecting end;

[0016] A flexible sealing element is configured to seal the orifice of the internal tube and the orifice of the external tube.

[0017] The pressure protection structure of the bubble machine further includes a third connecting end on the pipe fitting; the pressure protection structure also includes:

[0018] The first pressure relief valve is connected to the third communication terminal;

[0019] Specifically, when the pressure in the mixing chamber is greater than the second preset pressure, the first pressure relief valve releases pressure, the second preset pressure is less than the first preset pressure, and the second preset pressure is greater than atmospheric pressure.

[0020] The pressure protection structure of the bubble machine, wherein the pipe hole at the third connecting end forms a second stepped hole; the first pressure relief valve includes:

[0021] The first connecting pipe, the main pipe, and the second connecting pipe are connected in sequence;

[0022] The second seal is configured to seal the connection between the first connecting pipe and the second stepped hole;

[0023] A sliding sealing element slides inside the main tube and seals the first connecting tube and the main tube;

[0024] The elastic element is located inside the main tube;

[0025] Wherein, the two ends of the elastic element abut against the sliding sealing element and the second connecting pipe, respectively;

[0026] When the pressure in the mixing chamber is greater than the second preset pressure, the sliding sealing member slides toward the elastic member, and the first connecting pipe and the main pipe are connected.

[0027] The pressure protection structure of the bubble machine further includes a fourth connecting end in the tubing; the pressure protection structure also includes:

[0028] The exhaust valve is connected to the fourth connecting end;

[0029] The controller is electrically connected to the exhaust valve.

[0030] The pressure protection structure of the bubble machine further includes a fifth connecting end in the tubing; the pressure protection structure also includes:

[0031] An air pump is connected to the fifth connecting end;

[0032] The air pump is electrically connected to the controller.

[0033] A bubble machine, comprising:

[0034] Mixing chamber;

[0035] The gas source structure and the water source structure are respectively connected to the mixing chamber;

[0036] The air pressure protection structure described in any of the above items;

[0037] The gas source structure supplies carbon dioxide to the mixing chamber, and the water source structure supplies water to the mixing chamber.

[0038] The first connecting end of the air pressure protection structure is connected to the mixing chamber.

[0039] The bubble machine, wherein the mixing chamber comprises:

[0040] The upper shell and the lower shell are sealed together; the upper shell is provided with a first vent hole, and the lower shell is provided with a second vent hole, a water inlet hole and a water outlet hole;

[0041] A stirrer is located between the upper shell and the lower shell;

[0042] A driver for driving the stirrer to rotate;

[0043] A discharge valve is connected to the water outlet hole;

[0044] The first vent is connected to the first connecting end;

[0045] The second vent is connected to the air source structure;

[0046] The water inlet is connected to the water source structure.

[0047] The bubble machine described above, wherein the upper shell is spherical;

[0048] The stirrer includes:

[0049] A rotating base is rotatably connected to the upper shell and the lower shell;

[0050] Multiple stirring frames are disposed on the rotating seat;

[0051] When the stirring frame rotates, it forms a spherical crown shape.

[0052] The bubble machine, wherein the air source structure includes:

[0053] Gas cylinder;

[0054] A pressure reducing head is provided at the outlet of the gas cylinder and communicates with the second vent hole;

[0055] The second pressure relief valve is connected to the pressure reducing head.

[0056] Beneficial effects: The metal sheet of this application can withstand greater air pressure and be used for a long time. Therefore, when the pressure in the mixing chamber exceeds the first preset pressure, the metal sheet will be crushed by pressure. The gas in the mixing chamber can be discharged through the first connecting end, the second connecting end, and the connecting pipe assembly, which reduces the air pressure in the mixing chamber and protects the mixing chamber from being burst and damaged. Attached Figure Description

[0057] Figure 1 This is a first structural schematic diagram of the air pressure protection structure and the mixing chamber in an embodiment of the present invention.

[0058] Figure 2 This is a schematic diagram of the second structure of the air pressure protection structure and the mixing chamber in an embodiment of the present invention.

[0059] Figure 3 This is an exploded view of the air pressure protection structure in an embodiment of the present invention.

[0060] Figure 4 This is an exploded cross-sectional view of the gas pressure protection structure in an embodiment of the present invention.

[0061] Figure 5 This is a cross-sectional view of the air pressure protection structure and the mixing chamber in an embodiment of the present invention.

[0062] Figure 6 This is a cross-sectional view of the air pressure protection structure in an embodiment of the present invention.

[0063] Figure 7 This is a cross-sectional view of the mixing chamber in an embodiment of the present invention.

[0064] Figure 8 This is a schematic diagram of the structure of the lower shell and the stirrer in an embodiment of the present invention.

[0065] Figure 9 This is a schematic diagram of the first internal structure of the bubble machine in an embodiment of the present invention.

[0066] Figure 10 This is a schematic diagram of the second internal structure of the bubble machine in an embodiment of the present invention.

[0067] Figure 11 This is a schematic diagram of the bubble machine in an embodiment of the present invention.

[0068] Figure 12 This is a cross-sectional view of the water bottle in an embodiment of the present invention.

[0069] Explanation of reference numerals in the attached figures:

[0070] 10. Pipe fitting; 11. First connecting end; 12. Second connecting end; 121. First stepped hole; 13. Third connecting end; 131. Second stepped hole; 14. Fourth connecting end; 15. Fifth connecting end; 20. Connecting pipe assembly; 21. Internal pipe; 24. External pipe; 23. Flexible sealing element; 30. Metal sheet; 40. First sealing element; 50. First pressure relief valve; 51. First connecting pipe; 52. Main pipe; 53. Second connecting pipe; 54. Second sealing element; 55. Sliding sealing element; 56. Elastic element; 61. Exhaust valve; 62. Controller; 63. 71. Air pump; 71. Mixing chamber; 711. Upper shell; 7111. First vent; 712. Lower shell; 7121. Second vent; 7122. Water inlet; 7123. Water outlet; 713. Stirrer; 7131. Rotary seat; 7132. Stirring frame; 7133. Straight section; 7134. Bending section; 714. Driver; 715. Discharge valve; 72. Air source structure; 721. Air cylinder; 722. Pressure reducing head; 723. Second pressure relief valve; 73. Water source structure; 731. Water bottle; 732. Water pump; 733. Filter plate; 74. Collector. Detailed Implementation

[0071] To make the objectives, technical solutions, and advantages of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0072] Please also refer to Figures 1-12 This invention provides some embodiments of a pressure protection structure for a bubble machine.

[0073] like Figures 1-3 As shown, the pneumatic protection structure of the present invention includes:

[0074] The fitting 10 has a first connecting end 11 and a second connecting end 12. The first connecting end 11 is connected to the mixing chamber 71 of the bubble machine, and the tube hole of the second connecting end 12 forms a first stepped hole 121.

[0075] The connecting pipe assembly 20 is inserted into the large hole of the first stepped hole 121 and connected to the outside of the second communicating end 12; the position of the pipe hole of the connecting pipe assembly 20 corresponds to the position of the small hole of the first stepped hole 121.

[0076] Metal sheet 30 is configured to close the tube hole of the connecting tube assembly 20 and the small hole of the first stepped hole 121;

[0077] The first seal 40 is configured to seal the large hole of the connecting pipe assembly 20 and the first stepped hole 121;

[0078] When the pressure in the mixing chamber 71 is greater than the first preset pressure, the metal sheet 30 breaks; the first preset pressure is greater than atmospheric pressure.

[0079] Specifically, the mixing chamber 71 of the bubble machine is used to mix gas and liquid. Increasing the gas pressure inside the mixing chamber 71 helps to increase the solubility of the gas in the liquid. A pressure protection structure is connected to the mixing chamber 71 of the bubble machine. This structure protects the mixing chamber 71 from excessive pressure, preventing damage. The pressure protection structure can release gas, thereby reducing the pressure inside the mixing chamber 71 and achieving overpressure protection.

[0080] The fitting 10 is a multi-port pipe with multiple connecting ends, such as a first connecting end 11 and a second connecting end 12. The first connecting end 11 is connected to the mixing chamber 71, and the second connecting end 12 is connected to the connecting pipe assembly 20. The pipe hole of the second connecting end forms a first stepped hole 121. The stepped hole has at least two diameters; for example, when there are two diameters, the larger diameter is called a large hole, and the smaller diameter is called a small hole. Using a stepped hole not only facilitates a sealing connection but also facilitates a smooth transition between the small hole of the first stepped hole 121 and the pipe hole of the connecting pipe assembly 20. For example, the diameter of the small hole of the first stepped hole 121 is the same as the diameter of the pipe hole of the connecting pipe assembly 20. The metal sheet 30 is located between the pipe hole of the connecting pipe assembly 20 and the small hole of the first stepped hole 121, and seals the pipe hole of the connecting pipe assembly 20 and the small hole of the first stepped hole 121. After the gas in the mixing chamber 71 moves to the small hole of the first stepped hole 121, it is blocked by the metal sheet 30 and cannot enter the connecting pipe assembly 20.

[0081] The metal sheet 30 is made of metal and has good strength, capable of withstanding high air pressure. It is also resistant to failure over long-term use. Especially since the gas used in the bubble machine is carbon dioxide, the metal sheet 30 is less prone to oxidation. The metal sheet 30 is a thin metal sheet with a thickness in the micrometer or millimeter range, specifically configured according to the first preset pressure, including both the thickness and material. If the metal sheet 30 is damaged, it can be replaced for continued use. The first sealing element 40 provides a sealed connection between the connecting pipe assembly 20 and the large hole of the first stepped hole 121. The first sealing element 40 can be a sealing ring.

[0082] The metal sheet 30 of this application can withstand a large air pressure and be used for a long time. Therefore, when the pressure in the mixing chamber 71 is greater than the first preset pressure, the metal sheet 30 will be crushed by pressure. The gas in the mixing chamber 71 can be discharged through the first connecting end 11, the second connecting end 12, and the connecting pipe assembly 20, which reduces the air pressure in the mixing chamber 71 and protects the mixing chamber 71 from being burst and damaged.

[0083] In a preferred implementation of this invention, such as Figures 3-4 As shown, the connecting pipe assembly 20 includes:

[0084] The built-in tube 21 is located inside the large hole of the first stepped hole 121;

[0085] An external tube 24 is located outside the first stepped hole 121 and is connected to the outside of the second connecting end 12;

[0086] The flexible sealing element 23 is configured to close the orifice of the built-in tube 21 and the orifice of the external tube 24.

[0087] Specifically, the internal tube 21 is placed inside the first stepped hole 121, and the external tube 24 is placed outside the first stepped hole 121. The flexible sealing element 23 is located between the internal tube 21 and the external tube 24, sealing the holes of both the internal tube 21 and the external tube 24. Outside air moves to the thickness of the flexible sealing element 23, but is obstructed and cannot enter the internal tube 21 and the mixing chamber 71. The metal sheet 30 and the flexible sealing element 23 divide the channel from the outside to the mixing chamber 71 into three parts: a first section, a second section, and a third section. These three sections are connected sequentially. The first section connects to the mixing chamber 71, the second section is located between the first and third sections, and the third section connects to the outside. The strength of the flexible sealing element 23 is lower than that of the metal sheet 30. When the pressure in the mixing chamber 71 exceeds a first preset pressure, the metal sheet 30 ruptures, and the flexible sealing element 23 also ruptures. When the pressure of the gas in the mixing chamber 71 changes, a closed space is formed between the flexible sealing element 23 and the metal sheet 30, which can buffer the deformation of the metal sheet 30 and thus protect it. If the metal sheet 30 and the flexible sealing element 23 break, they can be replaced and the machine can continue to be used.

[0088] In a preferred implementation of this invention, such as Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the pipe fitting 10 also has a third connecting end 13; the air pressure protection structure further includes:

[0089] The first pressure relief valve 50 is connected to the third communication terminal 13;

[0090] When the pressure in the mixing chamber 71 is greater than the second preset pressure, the first pressure relief valve 50 releases pressure, the second preset pressure is less than the first preset pressure, and the second preset pressure is greater than atmospheric pressure.

[0091] Specifically, pipe fitting 10 also has a third connecting end 13, which is connected to a first pressure relief valve 50. The pressure relief valve can automatically relieve pressure, and after the pressure in the mixing chamber 71 decreases, the pressure relief valve stops relieving pressure, thus allowing for repeated pressure relief. When the pressure in the mixing chamber 71 is greater than the second preset pressure, the first pressure relief valve 50 begins to discharge gas to relieve pressure. When the second preset pressure is less than the first preset pressure, and both the first and second preset pressures are greater than atmospheric pressure, when the pressure in the mixing chamber 71 increases to the second preset pressure, the first pressure relief valve 50 begins to discharge gas and relieve pressure. If the pressure in the mixing chamber 71 only fluctuates slightly, after the first pressure relief valve 50 relieves pressure, the pressure in the mixing chamber 71 decreases to below the second preset pressure, and then the first pressure relief valve 50 closes. If the pressure in the mixing chamber 71 continues to rise and reaches the first preset pressure, the metal plate 30 ruptures, and a large amount of gas begins to be discharged, allowing the pressure in the mixing chamber 71 to drop rapidly.

[0092] In a preferred implementation of this invention, such as Figure 6 As shown, the pipe hole of the third connecting end 13 forms a second stepped hole 131; the first pressure relief valve 50 includes:

[0093] The first connecting pipe 51, the main pipe 52, and the second connecting pipe 53 are connected in sequence.

[0094] The second seal 54 is configured to seal the connection between the first connecting pipe 51 and the second stepped hole 131.

[0095] The sliding sealing member 55 slides inside the main tube 52 and seals the first connecting tube 51 and the main tube 52;

[0096] The elastic element 56 is located inside the main tube 52;

[0097] The two ends of the elastic member 56 abut against the sliding sealing member 55 and the second connecting pipe 53, respectively; when the pressure in the mixing chamber 71 is greater than the second preset pressure, the sliding sealing member 55 slides toward the elastic member 56, and the first connecting pipe 51 and the main pipe 52 are connected.

[0098] Specifically, the first connecting pipe 51 is connected to the third connecting end 13. A limiting hole can be formed on the third connecting end 13, and a limiting groove can be formed on the first connecting pipe 51. A limiting clamp is inserted into the limiting hole and clamps the limiting groove, thereby connecting the first connecting pipe 51 and the third connecting end 13. The second sealing element 54 is located inside the large hole of the second stepped hole 131, and the first connecting pipe 51 can be inserted into the small hole of the second stepped hole 131. The second sealing element 54 can be a sealing ring. The sliding sealing element 55 can slide inside the main body pipe 52. When the sliding sealing element 55 slides to the end of the main body pipe 52 facing the first connecting pipe 51, the sliding sealing element 55 can seal the first connecting pipe 51, thus blocking the gas in the first connecting pipe 51 and preventing it from entering the main body pipe 52. The elastic element 56 is located inside the main tube 52. The elastic element 56 provides the sliding sealing element 55 with an elastic force that allows it to slide beyond the first connecting tube 51. The two ends of the elastic element 56 can respectively abut against the sliding sealing element 55 and the second connecting tube 53. The elastic element 56 can be a spring. When the pressure in the mixing chamber 71 is greater than the second preset pressure, the gas in the third connecting end 13 pushes the sliding sealing element 55 to slide toward the second connecting tube 53. Then, the sliding sealing element 55 opens the first connecting tube 51, and the gas in the first connecting tube 51 can enter the main tube 52 and be discharged from the second connecting tube 53.

[0099] In a preferred implementation of this invention, such as Figure 3 , Figure 9 and Figure 10 As shown, the pipe fitting 10 also has a fourth connecting end 14; the air pressure protection structure further includes:

[0100] Exhaust valve 61 is connected to the fourth communication end 14;

[0101] The controller 62 is electrically connected to the exhaust valve 61.

[0102] Specifically, the fitting 10 also has a fourth connecting end 14, to which the exhaust valve 61 is connected. The controller 62 is electrically connected to the exhaust valve 61, and the controller 62 controls the opening and closing of the exhaust valve 61. The exhaust valve 61 can actively discharge the gas from the mixing chamber 71. For example, after carbon dioxide and water have mixed completely in the mixing chamber 71, the pressure of the gas in the mixing chamber 71 may be high. The controller 62 can control the exhaust valve 61 to reduce the pressure in the mixing chamber 71 to atmospheric pressure or slightly higher than atmospheric pressure.

[0103] In a preferred implementation of this invention, such as Figure 3 , Figure 9 and Figure 10 As shown, the pipe fitting 10 also has a fifth connecting end 15; the air pressure protection structure further includes:

[0104] Air pump 63 is connected to the fifth connecting end 15;

[0105] The air pump 63 is electrically connected to the controller 62.

[0106] Specifically, the fitting 10 also has a fifth connecting end 15, which is connected to the air pump 63. The air pump 63 is turned on or off by the controller 62. The air pump 63 can inject air into the mixing chamber 71, thereby discharging the bubble water in the mixing chamber 71.

[0107] Based on the air pressure protection structure described in any of the above embodiments, the present invention also provides a preferred embodiment of a bubble machine.

[0108] like Figures 9-11 As shown, the bubble machine of this embodiment includes:

[0109] Mixing chamber 71;

[0110] The gas source structure 72 and the water source structure 73 are respectively connected to the mixing chamber 71;

[0111] The air pressure protection structure as described in any of the above embodiments;

[0112] The gas source structure 72 supplies carbon dioxide to the mixing chamber 71, and the water source structure 73 supplies water to the mixing chamber 71.

[0113] The first connecting end 11 of the air pressure protection structure is connected to the mixing chamber 71.

[0114] Specifically, mixing chamber 71 is used to mix carbon dioxide and water. Gas source structure 72 can store high-pressure carbon dioxide, which can be liquefied carbon dioxide. Water source structure 73 stores water and is equipped with a filter plate 733. Ice can be added to water source structure 73, but the ice is blocked by the filter plate 733 and cannot enter mixing chamber 71. The ice can lower the temperature of the water in water source structure 73 to a preset temperature value, thereby increasing the solubility of carbon dioxide. The preset temperature value is 1℃~6℃. Both gas source structure 72 and water source structure 73 are connected to mixing chamber 71. Gas source structure 72 inputs stored carbon dioxide into mixing chamber 71, and water source structure 73 inputs stored water into mixing chamber 71. To increase the solubility of carbon dioxide in water, the pressure of carbon dioxide input into mixing chamber 71 by gas source structure 72 is greater than atmospheric pressure. Therefore, a pressure protection structure is configured to protect mixing chamber 71 from overpressure damage, preventing mixing chamber 71 from bursting under high pressure.

[0115] In a preferred implementation of this invention, such as Figures 7-9 As shown, the mixing chamber 71 includes:

[0116] The upper shell 711 and the lower shell 712 are sealed together; the upper shell 711 is provided with a first vent 7111, and the lower shell 712 is provided with a second vent 7121, a water inlet 7122 and a water outlet 7123.

[0117] A stirrer 713 is located between the upper shell 711 and the lower shell 712;

[0118] A driver 714 is used to drive the stirrer 713 to rotate;

[0119] Discharge valve 715 is connected to the water outlet 7123;

[0120] The first vent 7111 is connected to the first connecting end 11; the second vent 7121 is connected to the air source structure 72; and the water inlet 7122 is connected to the water source structure 73.

[0121] Specifically, the upper shell 711 and the lower shell 712 are sealed together to form a chamber for containing carbon dioxide and water. The upper shell 711 is provided with a first vent 7111, which connects to a first connecting end 11. The lower shell 712 is provided with a second vent 7121, which connects to a gas source structure 72; the lower shell 712 is provided with a water inlet 7122, which connects to a water source structure 73; and the lower shell 712 is provided with a water outlet 7123, which connects to a discharge valve 715. Carbon dioxide from the gas source structure 72 enters the mixing chamber 71 through the second vent 7121 and first contacts the water in the lower shell 712, which can increase the contact probability between carbon dioxide and water. The actuator 714 is electrically connected to the controller 62, and the controller 62 controls the actuator 714.

[0122] In a preferred implementation of this invention, such as Figures 7-8 As shown, the upper shell 711 is spherical; the stirrer 713 includes:

[0123] Rotary seat 7131 is rotatably connected to the upper shell 711 and the lower shell 712;

[0124] Multiple stirring frames 7132 are disposed on the rotating seat 7131;

[0125] When the stirring frame 7132 rotates, it forms a spherical crown shape.

[0126] Specifically, when the rotating seat 7131 drives the stirring frame 7132 to rotate, water can form a circulation. The direction of water flow is that the water in the middle descends, the water around the edges rises, the water at the bottom flows outward, and the water at the top flows inward, thus presenting a shape that is high around the edges and low in the middle. The upper shell 711 is spherical, which facilitates the inward flow of water from the top and accelerates the circulation of water, further increasing the probability of contact between carbon dioxide and water. If the rotating seat 7131 and the stirring frame 7132 rotate at a high speed, the liquid around the edges may flow to the highest point of the upper shell 711. The water in the mixing chamber 71 mainly adheres to the inner wall of the upper shell 711 and the inner wall of the lower shell 712, and a state of mutual mixing of carbon dioxide and water is formed in the middle of the mixing chamber 71 near the stirring frame 7132.

[0127] When the stirring frame 7132 rotates, it also forms a spherical crown shape. The stirring frame 7132 is located at the center of the mixing chamber 71, and the ratio of the radius of the spherical crown-shaped stirring frame 7132 to the radius of the spherical crown-shaped upper shell 711 is 1 / 3 to 2 / 3. The driver 714 drives the rotating seat 7131 to rotate, which in turn drives the stirring frame 7132 to rotate, thus agitating the water to form a shape that is high around the edges and low in the center. The stirring frame 7132 can span the liquid and gas phases, making it easier to overcome the surface tension of water, agitating and breaking up the water surface. Water can enter the gas phase to form water droplets, and carbon dioxide can enter the liquid phase to form bubbles, promoting the contact and dissolution of carbon dioxide in water, improving the dissolution efficiency of carbon dioxide in water, making it less likely to trigger the gas pressure protection structure, and extending the service life of the gas pressure protection structure.

[0128] In a preferred implementation of this invention, such as Figures 7-8 As shown, the stirring frame 7132 includes:

[0129] The straight portion 7133 and the curved portion 7134 are connected to each other. The straight portion 7133 is connected to the lower end near the rotating base 7131, and the curved portion 7134 is connected to the upper end near the rotating base 7131.

[0130] Specifically, the straight portion 7133 is horizontally arranged, the curved portion 7134 is vertically arranged, the straight portion 7133 is located below the curved portion 7134, and the straight portion 7133 fixes the lower end of the curved portion 7134 to the rotating seat 7131.

[0131] In a preferred implementation of this invention, such as Figures 9-10 As shown, the gas source structure 72 includes:

[0132] Gas cylinder 721;

[0133] A pressure reducing head 722 is disposed at the outlet of the gas cylinder 721 and communicates with the second vent 7121;

[0134] The second pressure relief valve 723 is connected to the pressure reducing head 722.

[0135] Specifically, cylinder 721 is used to store carbon dioxide, for example, liquefied carbon dioxide. Pressure reducing head 722 reduces the pressure of the carbon dioxide released from cylinder 721, delivering the carbon dioxide to mixing chamber 71. Pressure reducing head 722 can reduce the pressure of the carbon dioxide to a third preset pressure, which is lower than a second preset pressure and greater than atmospheric pressure. Pressure reducing head 722 is electrically connected to controller 62, which controls pressure reducing head 722.

[0136] In a preferred implementation of this invention, such as Figures 10-12 As shown, the water source structure 73 includes:

[0137] Water bottle 731, used to hold water;

[0138] The water pump 732 is connected to the water bottle 731 and the water inlet 7122 respectively.

[0139] Specifically, water bottle 731 can hold water, and a filter plate 733 can be installed inside water bottle 731. Solids, such as ice cubes, can also be added to water bottle 731. The added solids are blocked by the filter plate 733 inside water bottle 731 and cannot enter water pump 732. The ice cubes melt and lower the water temperature. The low-temperature water is then pumped by water pump 732 to mixing chamber 71. Carbon dioxide dissolves more efficiently in low-temperature water, making it less likely to trigger the pressure protection structure and extending its service life. Water pump 732 is electrically connected to controller 62, which controls water pump 732.

[0140] In a preferred implementation of this invention, such as Figures 9-11 As shown, the bubble machine also includes:

[0141] Collector 74 is connected to external pipe 24, first pressure relief valve 50, and exhaust valve 61 respectively.

[0142] Specifically, collector 74 can collect carbon dioxide and water discharged from external pipe 24, first pressure relief valve 50, and exhaust valve 61.

[0143] Based on the bubble machine described in any of the above embodiments, the present invention also provides a preferred embodiment of a control method for the bubble machine.

[0144] The control method for a bubble machine according to an embodiment of the present invention includes the following steps:

[0145] Step S100: Water is supplied to the mixing chamber through the water source structure;

[0146] Step S200: Control the driver to drive the stirrer to stir the water;

[0147] Step S300: Carbon dioxide is supplied to the mixing chamber through the gas source structure;

[0148] Step S400: When the first pressure relief valve releases pressure, the user's exhaust command is received, the gas source structure is controlled to stop supplying carbon dioxide, the exhaust valve is controlled to open for exhaust, and the exhaust valve is controlled to close after exhaust is completed.

[0149] Specifically, in the preparation of sparkling water, water is first supplied to the mixing chamber through the water source structure. A water pump is then activated to draw water from the bottle into the mixing chamber. A starter drives a stirrer to mix the water in the mixing chamber, and carbon dioxide is supplied to the mixing chamber through the gas source structure. A pressure reducing head is then activated to depressurize the carbon dioxide in the gas cylinder before supplying it to the mixing chamber.

[0150] The control method for a bubble machine also includes the following steps:

[0151] Step S500: Receive the user's drainage command, control the air pump to start drainage, and control the air pump to shut down after drainage is completed.

[0152] Specifically, if the first pressure relief valve releases pressure, it indicates that the water may no longer be able to dissolve carbon dioxide. In this case, after the venting is completed, the air pump can be started to discharge the water in the mixing chamber. At this time, a certain amount of carbon dioxide will dissolve in the water.

[0153] It should be understood that the application of the present invention is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A pressure protection structure for a bubble machine, characterized in that, include: The fitting has a first connecting end and a second connecting end, the first connecting end being connected to the mixing chamber of the bubble machine, and the tube hole of the second connecting end forming a first stepped hole; A connecting pipe assembly is inserted into the large hole of the first stepped hole and connected to the outside of the second communicating end; the position of the pipe hole of the connecting pipe assembly corresponds to the position of the small hole of the first stepped hole; A metal sheet is configured to close the tube hole of the connecting tube assembly and the small hole of the first stepped hole; A first seal is configured to seal the large hole of the connecting pipe assembly and the first stepped hole; Specifically, the metal sheet ruptures when the pressure in the mixing chamber exceeds a first preset pressure; the first preset pressure is greater than atmospheric pressure. The connecting pipe assembly includes: An internal tube is located inside the large hole of the first stepped hole; An external tube is located outside the first stepped hole and connected to the outside of the second connecting end; A flexible sealing element is configured to seal the orifice of the internal tube and the orifice of the external tube.

2. The air pressure protection structure of the bubble machine according to claim 1, characterized in that, The pipe fitting also has a third connecting end; the air pressure protection structure further includes: The first pressure relief valve is connected to the third communication terminal; Specifically, when the pressure in the mixing chamber is greater than the second preset pressure, the first pressure relief valve releases pressure, the second preset pressure is less than the first preset pressure, and the second preset pressure is greater than atmospheric pressure.

3. The air pressure protection structure of the bubble machine according to claim 2, characterized in that, The pipe hole at the third connecting end forms a second stepped hole; the first pressure relief valve includes: The first connecting pipe, the main pipe, and the second connecting pipe are connected in sequence; The second seal is configured to seal the connection between the first connecting pipe and the second stepped hole; A sliding sealing element slides inside the main tube and seals the first connecting tube and the main tube; The elastic element is located inside the main tube; Wherein, the two ends of the elastic element abut against the sliding sealing element and the second connecting pipe, respectively; When the pressure in the mixing chamber is greater than the second preset pressure, the sliding sealing member slides toward the elastic member, and the first connecting pipe and the main pipe are connected.

4. The air pressure protection structure of the bubble machine according to any one of claims 1 to 3, characterized in that, The pipe fitting also has a fourth connecting end; The pressure protection structure also includes: The exhaust valve is connected to the fourth connecting end; The controller is electrically connected to the exhaust valve.

5. The air pressure protection structure of the bubble machine according to claim 4, characterized in that, The pipe fitting also has a fifth connecting end; the air pressure protection structure further includes: An air pump is connected to the fifth connecting end; The air pump is electrically connected to the controller.

6. A bubble machine, characterized in that, include: Mixing chamber; The gas source structure and the water source structure are respectively connected to the mixing chamber; The air pressure protection structure as described in any one of claims 1 to 5; The gas source structure supplies carbon dioxide to the mixing chamber, and the water source structure supplies water to the mixing chamber. The first connecting end of the air pressure protection structure is connected to the mixing chamber.

7. The bubble machine according to claim 6, characterized in that, The mixing chamber includes: The upper shell and the lower shell are sealed together; the upper shell is provided with a first vent hole, and the lower shell is provided with a second vent hole, a water inlet hole and a water outlet hole; A stirrer is located between the upper shell and the lower shell; A driver for driving the stirrer to rotate; A discharge valve is connected to the water outlet hole; The first vent is connected to the first connecting end; The second vent is connected to the air source structure; The water inlet is connected to the water source structure.

8. The bubble machine according to claim 7, characterized in that, The upper shell is spherical; The stirrer includes: A rotating base is rotatably connected to the upper shell and the lower shell; Multiple stirring frames are disposed on the rotating seat; When the stirring frame rotates, it forms a spherical crown shape.

9. The bubble machine according to claim 7, characterized in that, The gas source structure includes: Gas cylinder; A pressure reducing head is provided at the outlet of the gas cylinder and communicates with the second vent hole; The second pressure relief valve is connected to the pressure reducing head.

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