Bubble water machine

Abstract

The utility model discloses a sparkling water machine, which belongs to the field of household electric appliances, solves the problem of low CO2 concentration of sparkling water made by the sparkling water machine, and adopts the technical scheme that a mixing component comprises a water inlet and gas inlet joint and a mixing cavity, the mixing cavity is provided with a spiral mixing channel, the water inlet and gas inlet joint comprises a Venturi tube, and the Venturi tube is provided with a gas inlet and a gas outlet. The large-diameter inlet end of the Venturi tube is communicated with the water storage container, the small-diameter inlet end of the Venturi tube is communicated with the gas storage container, the outlet end of the Venturi tube is communicated with an inlet of the spiral mixing channel, an outlet of the spiral mixing channel is communicated with a water outlet of the mixing cavity, the mixing cavity comprises a shell, a sealing piece and a shaft rod, and the sealing piece and the shaft rod are arranged in the shell. The sealing piece is connected with the shaft rod in an inserted mode and matched with the thread in a sealed mode to form a spiral mixing channel. The spiral mixing device is mainly used for guaranteeing the sealing performance of the spiral mixing channel, and meanwhile the concentration of CO2 in bubble water is improved.

Description

Technical Field

[0001] The utility model relates to the field of household appliances, in particular to a bubble water machine. Background Art

[0002] Common mixing methods for bubble water machines include bottle mixing and magnetic stirring mixing. Bottle mixing is a pulse mixing method. Water is placed in the bottle, and then the bottle is assembled on the whole machine. High-pressure carbon dioxide gas is quickly filled into the bottle and mixed with water to form bubble water. A pressure relief valve and a safety valve are set at the bottle mouth. Magnetic stirring mixing is to first add water to the mixing chamber, and then start to drive the lower magnet disk outside the mixing chamber to rotate through the motor. The upper magnet disk and the lower magnet disk are coupled and drive the upper magnet disk to rotate. The upper magnet disk stirs in the mixing chamber and simultaneously introduces 0.7Mpa-0.8Mpa of carbon dioxide gas. Since the pressure can be released and the bubble water can be released only after the stirring is completed, the two mixing chambers need to have a strong pressure bearing capacity. Not only are the materials and the thickness of the plastic parts used extremely high, but they also need to wait for a certain period of time and the concentration of the bubble water will be reduced during the waiting process for the pressure to be released.

[0003] In order to solve the above problems, a mixing device is disclosed in the prior art with publication number CN214159191U and titled “A mixing device and a sparkling water production device”, wherein the mixing device comprises: a mixer, which is provided with a mixing chamber for mixing carbon dioxide and water; a water inlet pipe, which is provided on the mixer and connected to the mixing chamber; a water outlet pipe, which is provided on the mixer and is arranged opposite to the water inlet pipe and connected to the mixing chamber; a guide screw, which is accommodated in the mixing chamber, and the outer wall of the guide screw and the inner wall of the mixer form a spiral guide channel, and the guide channel is used to guide water to flow from the water inlet pipe to the water outlet pipe; and an air inlet pipe, whose inner diameter is Gradually decreases, the small-diameter end of the air inlet pipe is connected to the mixing chamber and the water inlet pipe, and then the concentration of the bubble water is changed by adjusting the inner diameter of the water outlet pipe, the inner diameter of the water inlet pipe and the inner diameter of the air inlet pipe. However, since the fusion time in the water inlet pipe is short, and the outer wall of the guide screw and the inner wall of the mixer form a spiral guide channel, that is, the guide channel is completely formed by the cooperation of two rigid components, the sealing between the outer wall of the guide screw and the inner wall of the mixer is difficult to ensure, which will lead to the risk of leakage in the process of mixing carbon dioxide and water, and further lead to insufficient fusion between carbon dioxide and water, and the concentration of the bubble water cannot be guaranteed. Utility Model Content

[0004] In order to overcome the deficiencies in the prior art, the utility model provides a bubble water machine, which ensures the sealing performance of the spiral mixing channel and improves the concentration of CO2 in the bubble water.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bubble water machine, including an air storage container, a water storage container and a mixing component, the air storage container and the water storage container are respectively connected to the mixing component to provide CO2 and water, the mixing component includes a water inlet and air inlet joint and a mixing chamber, the mixing chamber is provided with a spiral mixing channel, the water inlet and air inlet joint includes a venturi tube, the large-diameter inlet end of the venturi tube is connected to the water storage container, the small-diameter inlet end of the venturi tube is connected to the air storage container, the outlet end of the venturi tube is connected to the inlet of the spiral mixing channel, the outlet of the spiral mixing channel is connected to the water outlet of the mixing chamber, the mixing chamber includes a shell and a seal and a shaft rod arranged in the shell, the shaft rod is provided with threads, the seal is plugged into the shaft rod and cooperates with the thread seal to form a spiral mixing channel.

[0006] After adopting the above technical scheme, the utility model has the following advantages: when water enters the large-diameter inlet end of the venturi tube from the water storage container, since the venturi tube has a pipeline design that first contracts and then gradually expands, the water flow velocity will increase in the throat between the large-diameter inlet end and the outlet end, forming a low-pressure area, and the small-diameter inlet end is connected to the throat. At this time, the carbon dioxide in the gas storage container is sucked into the venturi tube under the action of the pressure difference and is preliminarily mixed with the water. The bubble water after the preliminarily mixing flows out from the outlet end of the venturi tube and enters the spiral mixing channel. The spiral mixing channel forces the water flow to move along the spiral line and rotates during the flow process, which not only increases the contact space between carbon dioxide and water in unit volume, but also prolongs their contact time, thereby increasing the mixing opportunity of carbon dioxide and water, realizing secondary mixing, and ensuring the mixing effect. The plug-in cooperation between the seal and the shaft rod ensures the sealing of the spiral mixing channel. This design prevents gas leakage during the mixing process, which not only improves the concentration and taste of the bubble water, but also improves the mixing efficiency. The seal is generally made of food-grade rubber or silicone, which has a certain elasticity. When the high-pressure bubble water flows through the spiral mixing channel, it can absorb some of the impact, which helps to reduce the vibration and disturbance of the bubble water when it flows in the spiral mixing channel, effectively reduce the escape of carbon dioxide gas from the water, and also reduce noise. In addition, the seal can maintain good physical properties in a wide temperature range, which can effectively reduce the impact of temperature changes on the mixing of bubble water.

[0007] Furthermore, the thread is an external thread provided on the outer peripheral side of the shaft rod, and the shaft rod is inserted into the sealing member to cooperate and form a spiral mixing channel.

[0008] By adopting the above-mentioned technical solution, the external thread and the inside of the seal fit tightly together, which can effectively prevent gas leakage during the mixing process. The thread is directly processed on the outside of the shaft without the need for additional processing steps, which simplifies the production process and reduces production costs.

[0009] Furthermore, a first blind hole is provided at the front end of the shaft rod, the front end of the first blind hole is connected to the outlet end of the venturi tube, and a first through hole is provided on the side wall of the first blind hole and is connected to the inlet of the spiral mixing channel.

[0010] By adopting the above-mentioned technical solution, the pressure of the bubble water flowing out of the venturi tube will become smaller. As the bubble water accumulates in the first blind hole, the pressure gradually increases. Through the cooperation of the first blind hole and the first through hole, the pressure of the bubble water before entering the spiral mixing channel is increased, making it easier for carbon dioxide gas to dissolve in water, thereby improving the quality and taste of the bubble water.

[0011] Furthermore, a positioning portion extending into and engaging with the first blind hole is provided at the front end of the sealing member, and the positioning portion avoids the first through hole.

[0012] By adopting the aforementioned technical solution, the positioning portion on the seal extends into the first blind hole, forming a tight fit with the shaft rod. This design greatly enhances the sealing performance of the seal. Even if a large vibration or impact occurs during the operation of the bubble water machine, the tightness of the connection can be maintained, effectively reducing the possibility of leakage of the bubble water due to excessive pressure during the mixing process. The design of the positioning portion avoids the first through hole, ensuring that the bubble water can smoothly enter the spiral mixing channel from the Venturi tube, thereby ensuring the normal flow of the bubble water.

[0013] Furthermore, the outer periphery of the rear end of the shaft rod cooperates with the seal to close the rear end of the spiral mixing channel, the rear end face of the shaft rod is provided with a second blind hole, the side wall of the second blind hole is provided with a second through hole connected to the rear end of the spiral mixing channel, the rear end of the second blind hole is connected to the water outlet of the mixing cavity, and the diameter of the second through hole is not greater than the diameter of the first through hole.

[0014] By adopting the above-mentioned technical solution, the tight fit between the outer periphery of the rear end of the shaft rod and the seal ensures the sealing of the rear end of the spiral mixing channel. This sealing state effectively prevents the leakage of the bubble water during the mixing process, and ensures that the bubble water can be fully mixed in the spiral mixing channel. Due to the closed design of the rear end of the spiral mixing channel, the bubble water can only be discharged through the second blind hole and the second through hole, and the water flow will accumulate at the second through hole, which can further enhance the mixing effect and enable carbon dioxide to be better dissolved in water. The diameter of the first through hole is set to be no larger than the diameter of the second through hole, so that the pressure of the bubble water at the second through hole is not less than the pressure at the first through hole. This pressure difference helps the carbon dioxide gas to be more effectively integrated into the bubble water, thereby improving the quality and taste of the bubble water.

[0015] Furthermore, a flange is provided at the rear end of the seal, and a water outlet joint is provided at the rear end of the shell. The water outlet joint is detachably connected to the shell and clamps the flange. The water outlet of the mixing cavity is penetrated through the water outlet joint.

[0016] By adopting the aforementioned technical solution, the flange designed at the rear end of the seal is intended to provide a clamping surface that cooperates with the water outlet joint, which helps to increase the contact area between the seal and the water outlet joint, not only avoiding the leakage of the bubble water, but also ensuring the stability of the bubble water in the mixing chamber and maintaining the pressure. The detachable connection design between the water outlet joint and the shell is not only convenient for installation and maintenance, but also enables the water outlet joint to be easily replaced when needed, increasing the flexibility and service life of the equipment. The water outlet is arranged through the water outlet joint, so that the bubble water can be quickly discharged directly from the mixing chamber through the water outlet joint, avoiding contact with the pipe or other structures during the discharge process, resulting in pressure loss and affecting the taste.

[0017] Furthermore, the water outlet joint abuts against the rear end of the shaft rod to axially position the shaft rod.

[0018] By adopting the above-mentioned technical solution, the water outlet joint can be used not only as a water flow channel, but also as an axial positioning point of the shaft rod, ensuring that the shaft rod can maintain a stable state when subjected to the impact force of bubbling water.

[0019] Furthermore, the outlet end of the venturi tube has a trumpet structure with an enlarged diameter, and the front end of the sealing member is provided with an outer conical surface that abuts against the inner wall of the trumpet structure for sealing cooperation.

[0020] By adopting the above-mentioned technical solution, the outer conical surface at the front end of the seal fits tightly with the horn structure at the outlet end of the Venturi tube, reducing the gap, so the sealing performance is significantly improved, and can effectively prevent bubble water from leaking between the seal and the shell.

[0021] Furthermore, the shaft has an inner hole, the thread is an internal thread arranged on the wall of the inner hole, and the sealing member is inserted into the inner hole of the shaft to form a spiral mixing channel through sealing cooperation.

[0022] By adopting the above-mentioned technical solution, the cooperation between the internal thread and the seal not only forms a tight sealing structure, but also reduces the noise generated by turbulence and eddy current when the water flows steadily in the spiral mixing channel, making the equipment quieter during operation.

[0023] Furthermore, the mixing chamber includes a shell, and the shell and the venturi tube are an integral structure or a detachable structure.

[0024] With the aforementioned technical solution, when the shell and the Venturi tube adopt an integrated structural design, the entire mixing chamber becomes a single component. This design reduces the number of parts, reduces production costs, simplifies the installation process, and improves production efficiency. At the same time, the integrated structure can also ensure a tight connection between the shell and the Venturi tube, reducing the risk of leakage. On the other hand, when the shell and the Venturi tube adopt a detachable connection structure design, this design makes the mixing chamber easy to disassemble and assemble, making it convenient for users to clean and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] Figure 1 This is a structural explosion diagram of a bubble water machine of the utility model;

[0027] Figure 2 This is an assembly structure diagram of a bubble water machine of the utility model;

[0028] Figure 3 This is a cross-sectional view of a bubble water machine of the utility model;

[0029] Figure 4 The utility model is a working principle diagram of a bubble water machine. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0031] The terms "first", "second", etc. (if any) in the specification and claims of the present utility model are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used to distinguish a certain technical feature, it does not necessarily mean that it has "first". It should be understood that in the present utility model, "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. It should be understood that in the present utility model, "multiple" refers to two or more. "And / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or three of X, Y, and Z are included.

[0032] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0033] like Figures 1 to 4As shown, the utility model provides a bubble water machine, including an air storage container 3, a water storage container 2 and a mixing component 1, the air storage container 3 and the water storage container 2 are respectively connected to the mixing component 1 to provide CO2 and water, the mixing component 1 includes a water inlet and air inlet joint and a mixing chamber 13, the mixing chamber 13 is provided with a spiral mixing channel 131, the water inlet and air inlet joint includes a venturi tube 15, the large-diameter inlet end of the venturi tube 15 is connected to the water storage container 2, the small-diameter inlet end of the venturi tube 15 is connected to the air storage container 3, the outlet end of the venturi tube 15 is connected to the inlet of the spiral mixing channel 131, the outlet of the spiral mixing channel 131 is connected to the water outlet 141 of the mixing chamber 13, the mixing chamber 13 includes a shell 132 and a seal 134 and a shaft 133 arranged in the shell 132, the shaft 133 is provided with a thread, the seal 134 is plugged into the shaft 133 and cooperates with the thread seal to form the spiral mixing channel 131.

[0034] It can be understood that when water enters the large-diameter inlet end of the venturi tube 15 from the water storage container 2, since the venturi tube 15 has a pipe design that first contracts and then gradually expands, the water flow velocity will increase in the throat between the large-diameter inlet end and the outlet end, forming a low-pressure area, and the small-diameter inlet end is connected to the throat. At this time, the carbon dioxide in the gas storage container 3 is sucked into the venturi tube 15 under the action of the pressure difference and is preliminarily mixed with the water. The bubble water after the preliminarily mixing flows out from the outlet end of the venturi tube 15 and enters the spiral mixing channel 131. The spiral mixing channel 131 forces the water flow to move along the spiral line and rotates during the flow process, which not only increases the contact space between carbon dioxide and water per unit volume, but also prolongs their contact time, thereby increasing the mixing opportunity of carbon dioxide and water, realizing secondary mixing, and ensuring the mixing effect.

[0035] In particular, in the present invention, the plug-in cooperation of the seal 134 and the shaft 133 ensures the sealing of the spiral mixing channel 131. This design prevents gas leakage during the mixing process, which not only improves the concentration and taste of the bubble water, but also improves the mixing efficiency.

[0036] Preferably, the seal 134 is generally made of food-grade rubber or silicone and has a certain elasticity. When the high-pressure bubble water flows through the spiral mixing channel 131, the seal 134 can absorb part of the impact, which helps to reduce the vibration and disturbance of the bubble water when flowing in the spiral mixing channel 131, effectively reduce the escape of carbon dioxide gas from the water, and also reduce noise. Moreover, the seal 134 can maintain good physical properties within a wide temperature range, and can effectively reduce the impact of temperature changes on the mixing of bubble water. Specifically, the seal 134 is configured as a sealing sleeve.

[0037] In one embodiment, the thread is an external thread provided on the outer peripheral side of the shaft rod 133 , and the shaft rod 133 is inserted into the sealing sleeve to cooperate to form the spiral mixing channel 131 .

[0038] In another embodiment, the shaft rod 133 has an inner hole, the thread is an internal thread provided on the wall of the inner hole, and the sealing sleeve is inserted into the inner hole of the shaft rod 133 to form a spiral mixing channel 131 through sealing cooperation.

[0039] It can be understood that the cooperation between the shaft 133 and the sealing sleeve enables the water to flow stably in the spiral mixing channel 131, reducing the noise caused by turbulence and eddy currents, making the equipment quieter during operation. Furthermore, in the cooperation between the shaft 133 and the sealing sleeve, no matter whether the spiral mixing channel 131 is formed by the external thread of the shaft 133 and the inside of the sealing sleeve or by the tight cooperation between the internal thread and the sealing sleeve, the bubble water flow can be guided by the thread when passing through the threaded mixing channel to form a spiral flow, reduce turbulence and eddy currents, increase the contact area and mixing time between the water flow and carbon dioxide, thereby achieving efficient mixing. Furthermore, the cooperation between the shaft 133 thread and the sealing sleeve forms a tight sealing structure, which effectively prevents gas leakage during the mixing process and ensures the mixing effect and product quality.

[0040] Preferably, the performance of the spiral mixing channel 131 can be changed by adjusting parameters such as the density and pitch between threads to meet different mixing requirements. For example, increasing the density between threads can make the bubbles denser and the taste smoother.

[0041] Preferably, the shaft 133 and the sealing sleeve are arranged to be detachably connected. If the grinding parts are damaged or the sealing sleeve and threads of different densities need to be replaced according to the use environment, the accessories can be removed from the shaft 133 and replaced with new ones. The operation is simple and quick, making the cleaning and maintenance of the equipment more convenient.

[0042] Preferably, the outlet end of the venturi tube 15 has a horn structure 151 with an enlarged diameter, and the front end of the sealing sleeve is provided with an outer conical surface and abuts against the inner wall of the horn structure 151 for sealing. The outer conical surface at the front end of the sealing sleeve fits tightly with the horn structure 151 at the outlet end of the venturi tube 15, reducing the gap, so that the sealing performance is significantly improved, which can effectively prevent bubble water from leaking between the sealing sleeve and the shell 132.

[0043] In order to improve the sealing between the shells 132, a flange 1341 is provided at the rear end of the sealing sleeve, and a water outlet connector 14 is provided at the rear end of the shell 132. The water outlet connector 14 is detachably connected to the shell 132 and clamps the flange 1341. The water outlet 141 of the mixing chamber 13 is penetrated by the water outlet connector 14.

[0044] It can be understood that the flange 1341 designed at the rear end of the seal 134 is to provide a clamping surface that cooperates with the water outlet connector 14, which helps to increase the contact area between the seal 134 and the water outlet connector 14, not only avoiding the leakage of the bubble water, but also ensuring the stability of the bubble water in the mixing chamber 13 and maintaining the pressure. The detachable connection design between the water outlet connector 14 and the shell 132 is not only convenient for installation and maintenance, but also enables the water outlet connector 14 to be easily replaced when needed, thereby increasing the flexibility and service life of the equipment. The water outlet 141 is arranged throughout the water outlet connector 14, so that the bubble water can be quickly discharged directly from the mixing chamber 13 through the water outlet connector 14, avoiding contact with the pipeline or other structures during the discharge process, resulting in pressure loss and affecting the taste.

[0045] Furthermore, a water outlet joint sealing ring 142 is additionally provided at the clamping position between the flange 1341 and the water outlet joint 14 to strengthen the sealing.

[0046] Furthermore, in order to ensure that the shaft rod 133 can maintain a stable state when subjected to the impact force of the bubble water, the water outlet joint 14 is abutted against the rear end of the shaft rod 133 to axially position the shaft rod 133. It can be seen that the water outlet joint 14 can not only be used as a water flow channel, but also as an axial positioning point of the shaft rod 133.

[0047] Preferably, the water outlet connector 14 and the shaft rod 133 can be connected by snapping, which can achieve both a detachable connection and axial positioning.

[0048] In another embodiment, the mixing chamber 13 includes a shell 132 , and the shell 132 and the venturi tube 15 are an integral structure or a detachable structure.

[0049] Preferably, the housing 132 and the venturi tube 15 can be detachably connected by means of bolts, snaps, etc.

[0050] It can be understood that when the shell 132 and the Venturi tube 15 adopt an integrated structural design, the entire mixing chamber 13 becomes a single component. This design reduces the number of parts, reduces production costs, simplifies the installation process, and improves production efficiency. At the same time, the integrated structure can also ensure a tight connection between the shell 132 and the Venturi tube 15, reducing the risk of leakage. On the other hand, when the shell 132 and the Venturi tube 15 adopt a detachable connection structure design, this design makes the mixing chamber 13 easy to disassemble and assemble, making it convenient for users to clean and maintain.

[0051] Preferably, the water inlet connector 11 and the water outlet connector 14 are detachably connected to the shell 132. Through the detachable connection between the water inlet connector 11 and the water outlet connector 14 and the shell 132, different types of water inlet connectors 11 and water outlet connectors 14 can be replaced during the use and installation of different equipment, which is more flexible in terms of scope of use.

[0052] In order to facilitate the installation and replacement of the water inlet connector 11 and the water outlet connector 14, a first external thread is provided at the connection between the front end of the venturi tube 15 and the water inlet connector 11, and a first internal thread is provided at the water inlet connector 11, and the first external thread is matched with the first internal thread for connection. In order to ensure the sealing, a water inlet connector sealing ring 111 is added at the thread matching position. Similarly, a second external thread is provided at the connection between the end of the mixing chamber 13 and the water outlet connector 14, and a second internal thread is provided at the water outlet connector 14, and the second external thread is matched with the second internal thread for connection. In order to ensure the sealing, a water outlet connector sealing ring 142 is added at the thread matching position. This embodiment not only realizes a detachable connection, but also ensures the tightness and stability of the connection between the two.

[0053] Based on the above embodiment, a first blind hole 1331 is provided at the front end of the shaft rod 133, the front end of the first blind hole 1331 is connected to the outlet end of the venturi tube 15, and the side wall of the first blind hole 1331 is provided with a first through hole 1332 connected to the inlet of the spiral mixing channel 131.

[0054] It can be understood that the pressure of the bubble water flowing out of the venturi tube 15 will become smaller. As the bubble water accumulates in the first blind hole 1331, the pressure gradually increases. Through the cooperation of the first blind hole 1331 and the first through hole 1332, the pressure of the bubble water before entering the spiral mixing channel 131 is increased, making it easier for carbon dioxide gas to dissolve in water, thereby improving the quality and taste of the bubble water. Furthermore, by replacing different models of shaft rods 133 to adjust the diameter of the first through hole 1332 at the front end of the shaft rod 133, different usage environments can be met, thereby achieving adjustable concentration of the bubble water.

[0055] Furthermore, a positioning portion 1342 extending into and engaging with the first blind hole 1331 is provided at the front end of the sealing sleeve, and the positioning portion 1342 avoids the first through hole 1332 .

[0056] It can be understood that the positioning portion 1342 on the seal 134 is extended into the first blind hole 1331 to form a tight fit with the shaft 133. This design greatly enhances the sealing performance of the seal 134. Even if a large vibration or impact occurs during the operation of the bubble water machine, the tightness of the connection can be maintained, which effectively reduces the possibility of leakage of the bubble water due to excessive pressure during the mixing process. The design of the positioning portion 1342 avoids the first through hole 1332, ensuring that the bubble water can smoothly enter the spiral mixing channel 131 from the venturi tube 15, thereby ensuring the normal flow of the bubble water.

[0057] Preferably, the positioning portion 1342 may be an elastic positioning member, and a boss is provided using rubber or elastic material, which can be deformed to adapt to the shape of the hole when inserted into the first blind hole 1331, thereby providing a tighter seal.

[0058] Furthermore, the outer periphery of the rear end of the shaft rod 133 cooperates with the seal 134 to close the rear end of the spiral mixing channel 131, and the rear end surface of the shaft rod 133 is provided with a second blind hole 1333, and the side wall of the second blind hole 1333 is provided with a second through hole 1334 connected to the rear end of the spiral mixing channel 131, and the rear end of the second blind hole 1333 is connected to the water outlet 141 of the mixing cavity 13.

[0059] It can be understood that the tight fit between the outer periphery of the rear end of the shaft 133 and the seal 134 ensures the sealing of the rear end of the spiral mixing channel 131. This sealing state effectively prevents the leakage of the bubble water during the mixing process and ensures that the bubble water can be fully mixed in the spiral mixing channel 131. Due to the closed design of the rear end of the spiral mixing channel 131, the bubble water can only be discharged through the second blind hole 1333 and the second through hole 1334. The water flow will accumulate at the second through hole 1334, which can further enhance the mixing effect and enable carbon dioxide to be better dissolved in water.

[0060] By also arranging the second blind hole 1333 and the second through hole 1334 at the rear end of the shaft rod 133, a local pressure increase can be formed again at the position of the second blind hole 1333. The pressure increase causes the carbon dioxide gas to be subjected to a stronger compression force when it contacts water, thereby promoting the carbon dioxide gas precipitated due to collision in the spiral mixing channel 131 to be efficiently dissolved in water again, ensuring that the finally generated bubble water has a higher carbon dioxide content and a more delicate taste. When the bubble water continues to flow through the shaft rod 133 and enters the second through hole 1334, the water flow at the second through hole 1334 is rapidly depressurized, which not only ensures that the bubble water can pass smoothly, but also avoids splashing due to excessive pressure, and also provides sufficient space for the bubble water to disperse the carbon dioxide bubbles, achieving the dual effects of smooth water output and uniform bubble distribution.

[0061] It can be understood that, in this embodiment, the diameter of the first through hole 1332 is set to 1 mm, and the diameter of the second through hole 1334 is set to 0.5 mm. By setting the diameter of the first through hole 1332 to be larger than the diameter of the second through hole 1334, the pressure of the bubble water at the second through hole 1334 can be greater than the pressure at the first through hole 1332. This pressure difference helps the carbon dioxide gas to be more effectively integrated into the bubble water, thereby improving the quality and taste of the bubble water.

[0062] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A bubble water machine, comprising an air storage container, a water storage container and a mixing component, wherein the air storage container and the water storage container are respectively connected to the mixing component to provide CO2 and water, the mixing component comprises a water inlet and air inlet joint and a mixing cavity, the mixing cavity is provided with a spiral mixing channel, the water inlet and air inlet joint comprises a venturi tube, the large-diameter inlet end of the venturi tube is connected to the water storage container, the small-diameter inlet end of the venturi tube is connected to the air storage container, the outlet end of the venturi tube is connected to the inlet of the spiral mixing channel, the outlet of the spiral mixing channel is connected to the water outlet of the mixing cavity, characterized in that: The mixing chamber comprises a shell, a sealing member and a shaft arranged in the shell, the shaft is provided with threads, the sealing member is plugged into the shaft and cooperates with the threads to form a spiral mixing channel.

2. The bubble water machine according to claim 1, characterized in that: The thread is an external thread arranged on the outer peripheral side of the shaft rod, and the shaft rod is inserted into the sealing member to cooperate to form a spiral mixing channel.

3. The bubble water machine according to claim 2, characterized in that: The front end of the shaft rod is provided with a first blind hole, the front end of the first blind hole is connected with the outlet end of the venturi tube, and the side wall of the first blind hole is provided with a first through hole connected with the inlet of the spiral mixing channel.

4. The bubble water machine according to claim 3, characterized in that: The front end of the sealing member is provided with a positioning portion which extends into and fits into the first blind hole, and the positioning portion avoids the first through hole.

5. The sparkling water machine according to claim 3 or 4, characterized in that: The outer periphery of the rear end of the shaft rod cooperates with the sealing member to close the rear end of the spiral mixing channel. The rear end surface of the shaft rod is provided with a second blind hole. The side wall of the second blind hole is provided with a second through hole connected to the rear end of the spiral mixing channel. The rear end of the second blind hole is connected to the water outlet of the mixing cavity. The diameter of the second through hole is not greater than the diameter of the first through hole.

6. The bubble water machine according to claim 2, characterized in that: The rear end of the sealing member is provided with a flange, the rear end of the shell is provided with a water outlet joint, the water outlet joint is detachably connected to the shell and clamps the flange, and the water outlet of the mixing cavity is penetrated through the water outlet joint.

7. The bubble water machine according to claim 6, characterized in that: The water outlet joint abuts against the rear end of the shaft rod to position the shaft rod axially.

8. The bubble water machine according to claim 2, characterized in that: The outlet end of the venturi tube has a trumpet structure with an enlarged diameter, and the front end of the sealing sleeve is provided with an outer conical surface which abuts against the inner wall of the trumpet structure for sealing engagement.

9. The bubble water machine according to claim 2, characterized in that: The shaft rod has an inner hole, the thread is an internal thread arranged on the wall of the inner hole, and the sealing member is inserted into the inner hole of the shaft rod to form a spiral mixing channel through sealing cooperation.

10. The sparkling water machine according to claim 1, characterized in that: The mixing chamber comprises a shell, and the shell and the venturi tube are an integral structure or a detachable structure.

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