Bubble water machine

Abstract

The utility model discloses a sparkling water machine, which belongs to the technical field of sparkling water production, solves the problem of unreliable sealing performance of a resettable safety valve in the prior art, and adopts the technical scheme that a mixing component comprises a mixing container with a mixing cavity, a water supply component feeds water into the mixing cavity, and an air supply component supplies air to the mixing cavity; the mixing container is provided with a pressure release valve and a safety valve, the rated valve opening pressure P2 of the pressure release valve is smaller than the rated valve opening pressure P1 of the safety valve, the safety valve comprises a pressure release channel, a valve plate and a pricking needle, the valve plate is arranged in the pressure release channel and keeps closing the pressure release channel, and the tip of the pricking needle faces the valve plate. And after the pressure intensity P of the valve plate in the mixing cavity exceeds P1, the valve plate is punctured by the puncture needle to realize pressure relief. The utility model is mainly used for improving the sealing reliability of the mixing cavity with lower cost.

Description

Technical Field

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

[0002] As people's living standards continue to improve, sparkling water has become a common drink in people's daily lives. Sparkling water is made by mixing carbon dioxide and water. The weakly acidic sparkling water has the function of gastric activation. Since in the process of making sparkling water, gas needs to be filled into the liquid to make sparkling water, during this process, the pressure in the mixing chamber gradually increases. In order to ensure that the pressure in the mixing chamber is within a safe range, the sparkling water machine is usually also equipped with a pressure relief device, which automatically releases pressure and exhausts when the pressure in the mixing chamber is too high.

[0003] For example, the prior art CN210687132U discloses a pressure relief device and a bubble water machine, wherein the pressure relief device comprises: a pressure relief seat and a first pressure relief valve, wherein the pressure relief seat is provided with a first pressure relief channel connected to the bottle body, wherein the first pressure relief valve comprises a first valve seat, a first valve core and a first spring, wherein the first valve seat is provided at one end of the first pressure relief channel away from the bottle body, wherein the first valve seat is provided with a first pressure relief chamber connected to the outside, wherein the side wall of the first pressure relief chamber is provided with a first pressure relief port connected to the first pressure relief channel, wherein one end of the first valve core is provided with a first sealing portion, and the other end is provided with a first pressing portion, wherein the first sealing portion penetrates into the first pressure relief channel from the first pressure relief port and abuts against the periphery of the first pressure relief port, wherein one end of the first spring abuts against the side wall of the first pressure relief chamber, and the other end is used to abut against the first pressing portion. In the prior art, the pressure is reduced by providing a pressure relief valve on the bottle body to prevent safety problems caused by excessive pressure in the bottle body. However, in actual use, once the pressure relief device fails, the pressure inside the bottle will be too high and out of control, posing a major safety hazard.

[0004] In order to solve the above problems, the prior art CN215077568U discloses a sparkling water machine, including a pressure relief valve, which is arranged on the machine body and connected to the water bottle and linked to the inflation switch; and also includes a safety valve, which is arranged on the machine body and connected to the water bottle. After the production of the sparkling water is completed, the pressure relief valve is opened, and the water bottle is connected to the atmosphere through the pressure relief valve to release the excess pressure in the water bottle, thereby ensuring that there are no safety hazards when disassembling the water bottle. The safety valve is in a normally closed state under the action of external force. When the pressure in the water bottle rises to exceed the specified value, the safety valve opens to release pressure to ensure the safety of the user. The double pressure relief device can achieve double insurance of pressure relief safety.

[0005] Generally, although the existing safety valve uses a resettable valve core to seal the mixing chamber, after long-term use, the valve core is prone to aging, wear and other problems. When the pressure in the mixing chamber reaches a certain level but does not reach the level that requires pressure relief, the valve core will loosen and leak, causing the mixing chamber seal to fail and the bubble water machine to fail to mix normally. Utility Model Content

[0006] The purpose to be achieved by the utility model is to provide a bubble water machine, which solves the problem of unreliable sealing of the resettable safety valve in the prior art and improves the sealing reliability of the mixing chamber at a relatively low cost.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bubble water machine, including a water supply component, an air supply component and a mixing component, the mixing component including a mixing container with a mixing chamber, the water supply component supplies water to the mixing chamber, the air supply component supplies air to the mixing chamber, the mixing container is provided with a pressure relief valve and a safety valve, the rated valve opening pressure P2 of the pressure relief valve is less than the rated valve opening pressure P1 of the safety valve, the safety valve includes a pressure relief channel, a valve sheet and a puncture needle, the valve sheet is arranged in the pressure relief channel and keeps the pressure relief channel closed, the pointed end of the puncture needle faces the valve sheet, and the valve sheet is punctured by the puncture needle after the pressure P in the mixing chamber exceeds P1 to achieve pressure relief.

[0008] After adopting the above technical solution, the utility model has the following advantages: the valve plate is arranged in the pressure relief channel and keeps the pressure relief channel closed. When the pressure P of the mixing chamber exceeds P1, the needle pierces the valve plate to connect the pressure relief channel with the mixing chamber, and the pressure P in the mixing chamber is reduced to a safe value, achieving the effect of overpressure protection, effectively preventing safety accidents, reducing safety hazards, improving safety of use, and protecting the bubble water machine from damage. After the pressure relief is completed, it is only necessary to replace the valve plate to keep the pressure relief channel closed to restore the function of the safety valve, reduce the use cost of the bubble water machine, and the safety valve has a simple structure, a small size, and is very convenient to install and use. In addition, after each replacement of the valve plate, the reliability of the valve plate is guaranteed, ensuring the sealing reliability of the mixing chamber and ensuring that the bubble water machine achieves normal mixing.

[0009] Furthermore, the needle is fixed in the safety valve, and the valve plate is movably installed in the safety valve and moves toward the tip of the needle under the pressure of the mixing chamber, so that it is punctured by the needle. With the aforementioned technical solution, when the pressure in the mixing chamber is too high, an obvious pressure difference is formed between the mixing chamber and the pressure relief channel, pushing the valve plate to move toward the tip of the needle. When the pressure P in the mixing chamber exceeds P1, the needle punctures the valve plate. The pressure is used to push the valve plate toward the tip of the needle, so that the needle punctures the valve plate to reduce the pressure in the mixing chamber, ensuring that the safety valve can start pressure relief in time. The needle can easily puncture the valve plate to achieve pressure relief, reducing the risk of safety valve failure, ensuring the reliability of double pressure relief protection, and during the pressure relief process, there is no need to perform other operations to open the safety valve for pressure relief, and the pressure relief can be automatically released to ensure user safety.

[0010] Furthermore, the safety valve is provided with a support frame for fixing the valve plate, and the outer periphery of the support frame is in sealing cooperation with the inner wall of the safety valve. The support frame drives the valve plate to move toward the tip of the needle under the pressure of the mixing chamber. With the aforementioned technical solution, the support frame provides a stable support for the valve plate, so that the valve plate can remain stable under the pressure of the mixing chamber and move stably toward the tip of the needle. During the process of the tip of the needle piercing the valve plate, the valve plate will not shift, and the contact area between the valve plate and the tip of the needle is small. Under the high pressure of the mixing chamber, the needle can easily pierce the valve plate, ensuring that the tip of the needle pierces the valve plate, and ensuring the reliability of pressure relief. Moreover, the outer periphery of the support frame is in sealing cooperation with the inner wall of the safety valve, ensuring that the pressure relief channel is closed when the pressure in the mixing chamber is normal, ensuring the sealing reliability of the mixing chamber, and ensuring that the bubble water machine achieves normal mixing.

[0011] Furthermore, the safety valve includes a valve seat and a valve housing. The valve housing is sealed and connected to the valve seat to form a valve cavity. The pressure relief passage includes an upstream section provided on the valve seat and a downstream section provided on the valve housing. The valve plate closes the upstream section, and the downstream section is connected to the valve cavity. With the aforementioned technical solution, the valve cavity provides a movement space for the valve plate, ensuring that the valve plate can move under the pressure of the mixing chamber. After the needle pierces the valve plate, the pressure relief passage is opened, and the gas enters the valve cavity through the valve plate. The valve cavity connects the upstream section and the downstream section, ensuring that the gas can be quickly discharged, thereby improving the safety of the use of the bubble water machine. In addition, the valve seat and the valve housing are easy to disassemble and repair, and it is also easy to replace the valve plate, which can restore the function of the safety valve and reduce the use cost of the safety valve.

[0012] Furthermore, the pressure relief channel includes a through hole provided on the support frame, the valve plate is located between the upstream section and the upstream end of the through hole, the downstream end of the through hole is connected to the valve cavity, and the needle extends from the downstream end of the through hole. With the above technical solution, the through hole connects the upstream section and the valve cavity, the gas flows into the valve cavity through the through hole, and then flows from the valve cavity to the downstream end for discharge, providing a flow guide path for the gas, ensuring that the gas can flow out of the mixing cavity smoothly, thereby reducing the pressure of the mixing cavity and achieving rapid pressure relief.

[0013] Furthermore, an elastic member is provided between the support frame and the valve housing or valve seat to keep the valve plate closed in the upstream section. With the above-mentioned technical solution, the elastic member applies a force to the support frame, pressing the valve plate against the upstream section to seal the upstream section, ensuring that the upstream section remains closed and that the bubble water machine achieves normal mixing. In addition, after replacing the valve plate, the elastic member resets the support frame to ensure that the replaced valve plate can also seal the mixing chamber well, thereby ensuring the reliability of the safety valve.

[0014] Furthermore, a support platform for mounting the puncture needle is provided in the valve housing, the downstream section extends into the support platform, and the side wall of the support platform is provided with an air vent connected to the downstream section. By adopting the above-mentioned technical solution, the support platform provides a stable installation position for the puncture needle, ensuring that the puncture needle is fixed and stable, and can accurately and reliably puncture the valve plate. The side wall of the support platform is provided with an air vent connected to the downstream section, and the gas in the mixing chamber can be discharged through the air vent to reduce the pressure in the mixing chamber. During this process, the gas will collide and rub against the inner wall of the air vent, causing the gas to form a vortex near the air vent, thereby emitting a certain sound to remind the user that the pressure relief valve is abnormal, and remind the user to repair the bubble water machine in time.

[0015] Furthermore, the valve plate includes a fixed portion and a pierced portion, the fixed portion surrounds the outer periphery of the pierced portion, the thickness of the pierced portion is less than the thickness of the fixed portion, and the upstream end of the support frame is provided with a mounting groove that cooperates with the fixed portion. With the above-mentioned technical solution, the fixed portion surrounds the outer periphery of the pierced portion, provides support for the pierced portion, ensures that the valve plate can better resist the pressure effect, ensures the stability of the valve plate under the pressure effect, and ensures that the valve plate can reliably close the pressure relief channel. At the same time, it also makes the pierced portion smoother during the piercing process by the piercing needle, which is conducive to rapid pressure relief. The thickness of the pierced portion is less than the thickness of the fixed portion. The thicker fixed portion can enhance the stability of the valve plate, and the thinner pierced portion is conducive to smoother piercing by the needle, thereby achieving rapid pressure relief and ensuring the reliability of the safety valve. The mounting groove provides a guiding role for the installation of the valve plate, which is convenient for quickly installing the valve plate to the correct position, and also limits the valve plate in the mounting groove to prevent the valve plate from shifting.

[0016] Furthermore, the valve plate is fixed in the safety valve, and the needle is movably installed in the safety valve and moves toward the valve plate under the pressure of the mixing chamber, thereby puncturing the valve plate. With the aforementioned technical solution, when the pressure P of the mixing chamber exceeds the rated valve opening pressure P1 of the safety valve, the needle moves toward the valve plate under the pressure of the mixing chamber, puncturing the valve plate to allow the gas in the mixing chamber to flow out and reduce the pressure in the mixing chamber, thereby achieving the effect of overpressure protection, improving the safety of use, and protecting the bubble water machine from damage. In this embodiment, the valve plate is fixed, and the valve plate has a better sealing effect on the pressure relief channel, further ensuring the sealing of the mixing chamber.

[0017] Furthermore, the valve sheet includes a fixed portion and a deformable portion, wherein the fixed portion surrounds the outer circumference of the deformable portion, and the deformable portion is deformed toward the tip of the needle under the pressure of the mixing chamber, and the pressure is released after the deformable portion is punctured by the needle. With the aforementioned technical solution, when the pressure P of the mixing chamber exceeds the rated valve opening pressure P1 of the safety valve, the deformable portion is deformed toward the tip of the needle under the pressure of the mixing chamber, and is punctured by the needle to release the pressure. The deformable portion has good deformation ability, can better adapt to the pressure changes in the mixing chamber, improve the reliability of the safety valve, and can adjust the distance between the deformable portion and the needle according to the rated valve opening pressure P1 of the safety valve to meet the use requirements of different models of bubble water machines. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Figure 1 It is a cross-sectional view of the safety valve when the valve plate is not punctured;

[0020] Figure 2 It is a cross-sectional view of the safety valve when the valve plate is punctured;

[0021] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0022] Figure 4 is a schematic diagram of a valve plate;

[0023] Figure 5 It is a schematic diagram of a mixing component in a bubble water machine of the utility model;

[0024] Figure 6 This is a connection diagram of the safety valve and the pressure relief valve. DETAILED DESCRIPTION

[0025] 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.

[0026] 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.

[0027] 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.

[0028] The utility model provides a bubble water machine, comprising a water supply component, an air supply component and a mixing component, wherein the mixing component comprises a mixing container 1 having a mixing chamber 10, the water supply component supplies water to the mixing chamber 10, and the air supply component supplies air to the mixing chamber 10. Figures 1 to 6 As shown, the mixing container 1 is provided with a pressure relief valve 2 and a safety valve 3. The rated valve opening pressure P2 of the pressure relief valve 2 is less than the rated valve opening pressure P1 of the safety valve 3. The safety valve 3 comprises a pressure relief channel 31, a valve plate 32 and a needle 33. The valve plate 32 is arranged in the pressure relief channel 31 and keeps the pressure relief channel 31 closed. The tip of the needle 33 faces the valve plate 32. After the pressure P of the mixing chamber 10 exceeds P1, the valve plate 32 is punctured by the needle 33 to achieve pressure relief.

[0029] In this embodiment, the air supply component inflates the mixing chamber 10, and the water supply component fills the mixing chamber 10 with water, and the gas and water are fully mixed in the mixing chamber 10 to form bubble water. In this process, the interior of the mixing chamber 10 is sealed and a huge pressure is generated as a large amount of gas is filled in. When the pressure P in the mixing chamber 10 reaches the rated valve opening pressure P2 of the pressure relief valve 2, the pressure relief valve 2 is activated, the bubble water machine stops taking in air, and begins to release pressure to a safe value; if the pressure relief valve 2 fails, the bubble water machine continues to work, and the pressure P in the mixing chamber 10 continues to increase to the rated valve opening pressure P1 of the safety valve 3. At this time, the safety valve 3 is activated and the pressure is released to a safe value. The rated valve opening pressure P2 of the pressure relief valve 2 is less than the rated valve opening pressure P1 of the safety valve 3. The double pressure relief realizes the double safety guarantee of pressure relief safety, thereby improving the safety of the bubble water machine.

[0030] The valve plate 32 is arranged in the pressure relief channel 31 and keeps the pressure relief channel 31 closed. When the pressure P of the mixing chamber 10 exceeds P1, the needle 33 pierces the valve plate 32 to connect the pressure relief channel 31 with the mixing chamber 10. The pressure P in the mixing chamber 10 is reduced to a safe value, achieving the effect of overpressure protection, effectively preventing safety accidents, reducing safety hazards, improving safety of use, and protecting the bubble water machine from damage. After the pressure relief is completed, it is only necessary to replace the valve plate 32 to keep the pressure relief channel 31 closed to restore the function of the safety valve 3, reducing the use cost of the bubble water machine, and the safety valve 3 has a simple structure, a small size, and is very convenient to install and use. In addition, after each replacement of the valve plate, the reliability of the valve plate is guaranteed, ensuring the sealing reliability of the mixing chamber and ensuring that the bubble water machine achieves normal mixing.

[0031] like Figures 1 to 3 As shown, in order to achieve that the puncture needle 33 can puncture the valve plate 32 after the pressure P of the mixing chamber 10 exceeds P1, in one embodiment, the puncture needle 33 is fixed in the safety valve 3, and the valve plate 32 is movably installed in the safety valve 3 and moves toward the tip of the puncture needle 33 under the pressure of the mixing chamber 10, so as to be punctured by the puncture needle 33. When the pressure in the mixing chamber 10 is too high, a significant pressure difference is formed between the mixing chamber 10 and the pressure relief channel 31, pushing the valve plate 32 to move toward the tip of the puncture needle 33. When the pressure P of the mixing chamber 10 exceeds P1, the puncture needle 33 punctures the valve plate 32. The valve plate 32 is pushed toward the tip of the puncture needle 33 by the action of pressure, so that the puncture needle 33 punctures the valve plate 32 to reduce the pressure in the mixing chamber 10, ensuring that the safety valve 3 can start pressure relief in time. The puncture needle 33 can easily puncture the valve plate 32 to achieve pressure relief, reducing the risk of failure of the safety valve 3, ensuring the reliability of the double pressure relief protection, and during the pressure relief process, there is no need to perform other operations to open the safety valve 3 for pressure relief, and the pressure relief can be automatically released, ensuring the safety of users.

[0032] In order to ensure the stability of the valve plate 32 during its movement and ensure that the needle 33 can smoothly pierce the valve plate 32, in one embodiment, a support frame 34 is provided inside the safety valve 3 to fix the valve plate 32. The outer periphery of the support frame 34 is sealed with the inner wall of the safety valve 3. The support frame 34 drives the valve plate 32 to move toward the tip of the needle 33 under the pressure of the mixing chamber 10. The support frame 34 provides a stable support for the valve plate 32, so that the valve plate 32 can remain stable under the pressure of the mixing chamber 10 and move stably toward the tip of the needle 33. During the process of the tip of the needle 33 piercing the valve plate 32, the valve plate 32 will not shift, and the contact area between the valve plate 32 and the tip of the needle 33 is small. Under the high pressure of the mixing chamber 10, the needle 33 can easily pierce the valve plate 32, ensuring that the tip of the needle 33 pierces the valve plate 32, and ensuring the reliability of pressure relief. Moreover, the outer periphery of the support frame 34 is sealed with the inner wall of the safety valve 3. Specifically, an annular sealing ring 341 can be set between the outer periphery of the support frame 34 and the inner wall of the safety valve 3. The annular sealing ring 341 can move with the support frame 34 to ensure that the pressure relief channel 31 is closed when the pressure in the mixing chamber 10 is normal, thereby ensuring the sealing reliability of the mixing chamber 10 and ensuring normal mixing of the bubble water machine.

[0033] In order to facilitate the replacement of the valve plate 32 to restore the function of the safety valve 3, in one embodiment, the safety valve 3 includes a valve seat 35 and a valve housing 36, the valve housing 36 is sealed and connected to the valve seat 35 to form a valve chamber 351, and the pressure relief channel 31 includes an upstream section 41 provided on the valve seat 35 and a downstream section 42 provided on the valve housing 36, the valve plate 32 closes the upstream section 41, and the downstream section 42 is connected to the valve chamber 351. The valve chamber 351 provides a movement space for the valve plate 32 to ensure that the valve plate 32 can move under the pressure of the mixing chamber 10. After the needle 33 pierces the valve plate 32, the pressure relief channel 31 is opened, and the gas enters the valve chamber 351 through the valve plate 32. The valve chamber 351 connects the upstream section 41 and the downstream section 42 to ensure that the gas can be quickly discharged, thereby improving the safety of the use of the bubble water machine. In addition, the valve seat 35 and the valve housing 36 are easy to disassemble and repair, and are also easy to replace the valve plate 32, restore the function of the safety valve 3, and reduce the use cost of the safety valve 3.

[0034] The pressure relief channel 31 includes a through hole 342 provided on the support frame 34, the valve plate 32 is located between the upstream section 41 and the upstream end of the through hole 342, the downstream end of the through hole 342 is connected to the valve cavity 351, and the needle 33 extends from the downstream end of the through hole 342. The through hole 342 connects the upstream section 41 and the valve cavity 351, and the gas flows into the valve cavity 351 through the through hole, and then flows from the valve cavity 351 to the downstream end for discharge, providing a flow guide path for the gas, ensuring that the gas can flow out of the mixing chamber 10 smoothly, thereby reducing the pressure of the mixing chamber 10 and achieving rapid pressure relief.

[0035] When the pressure in the mixing chamber 10 is normal, in order to ensure that the upstream section 41 remains in a closed state, in one embodiment, an elastic member 343 is provided between the support frame 34 and the valve housing 36 or the valve seat 35 to keep the valve plate 32 closed in the upstream section 41. The elastic member 343 applies a force to the support frame 34, pressing the valve plate 32 against the upstream section 41 to seal the upstream section 41, ensuring that the upstream section 41 remains in a closed state, and ensuring that the bubble water machine achieves normal mixing. In addition, after replacing the valve plate 32, the elastic member 343 resets the support frame 34 to ensure that the replaced valve plate 32 can also seal the mixing chamber 10 well, thereby ensuring the reliability of the safety valve 3. The elastic member 343 can be a spring, but is not limited to this.

[0036] In order to ensure the stability of the puncture needle 33, in one embodiment, a support platform 361 for mounting the puncture needle 33 is provided in the valve housing 36, the downstream section 42 extends into the support platform 361, and the side wall of the support platform 361 is provided with an air release port 362 connected to the downstream section 42. The support platform 361 provides a stable installation position for the puncture needle 33, ensuring that the puncture needle 33 is fixed and stable, and can accurately and reliably puncture the valve plate 32. The side wall of the support platform 361 is provided with an air release port 362 connected to the downstream section 42, and the gas in the mixing chamber 10 can be discharged through the air release port 362 to reduce the pressure in the mixing chamber 10. In this process, the gas will collide and rub with the inner wall of the air release port 362, causing the gas to form a vortex near the air release port 362, thereby making a certain sound to remind the user that the pressure relief valve 2 is abnormal, and remind the user to repair the bubble water machine in time.

[0037] In order to further ensure that the valve plate 32 seals the pressure relief channel 31 reliably, in one embodiment, the valve plate 32 includes a fixing portion 321 and a pierced portion 322, the fixing portion 321 surrounds the outer periphery of the pierced portion 322, the thickness h of the pierced portion is less than the thickness H of the fixing portion, and the upstream end of the support frame 34 is provided with a mounting groove 344 that cooperates with the fixing portion 321. The fixing portion 321 surrounds the outer periphery of the pierced portion 322, provides support for the pierced portion 322, ensures that the valve plate 32 can better resist the pressure effect, ensures the stability of the valve plate 32 under the pressure effect, ensures that the valve plate 32 can reliably seal the pressure relief channel 31, and at the same time, makes the pierced portion 322 more smoothly during the piercing process by the piercing needle 33, which is conducive to rapid pressure relief. The thickness h of the pierced portion is less than the thickness H of the fixing portion, the thicker fixing portion 321 can enhance the stability of the valve plate 32, and the thinner pierced portion 322 is conducive to smoother piercing by needle puncture, thereby achieving rapid pressure relief and ensuring the reliability of the safety valve 3. The installation groove 344 provides a guide for the installation of the valve plate 32 , making it easy to quickly install the valve plate 32 to the correct position, and also limits the valve plate 32 in the installation groove 344 to prevent the valve plate 32 from shifting.

[0038] In one embodiment, the valve plate 32 can also be fixed in the safety valve 3, and the puncture needle 33 can be movably installed in the safety valve 3 and move toward the valve plate 32 under the pressure of the mixing chamber 10, thereby puncturing the valve plate 32. When the pressure P of the mixing chamber 10 exceeds the rated valve opening pressure P1 of the safety valve 3, the puncture needle 33 moves toward the valve plate 32 under the pressure of the mixing chamber 10, puncturing the valve plate 32 to allow the gas in the mixing chamber 10 to flow out and reduce the pressure in the mixing chamber 10, thereby achieving the effect of overpressure protection, improving the safety of use, and protecting the bubble water machine from damage. In this embodiment, the valve plate 32 is fixed, and the valve plate 32 has a better sealing effect on the pressure relief channel 31, further ensuring the sealing of the mixing chamber 10.

[0039] like Figure 4 As shown, in one embodiment, the valve plate 32 includes a fixed portion 321 and a deformable portion 324, the fixed portion 321 surrounds the outer periphery of the deformable portion 324, the deformable portion 324 deforms toward the tip of the puncture needle 33 under the pressure of the mixing chamber 10, and the deformable portion 324 is punctured by the puncture needle 33 to achieve pressure relief. When the pressure P of the mixing chamber 10 exceeds the rated valve opening pressure P1 of the safety valve 3, the deformable portion 324 deforms toward the tip of the puncture needle 33 under the pressure of the mixing chamber 10, and is punctured by the puncture needle 33 to achieve pressure relief. The deformable portion 324 has a good deformation ability, can better adapt to the pressure change in the mixing chamber 10, improve the reliability of the safety valve 3, and can adjust the distance between the deformable portion 324 and the puncture needle 33 according to the rated valve opening pressure P1 of the safety valve 3 to meet the use requirements of different models of bubble water machines.

[0040] like Figures 5 and 6 As shown, the mixing container 1 includes an upper cover 11 and a lower cover 12, and the upper cover 11 and the lower cover 12 form a mixing chamber 10. The upper cover 11 is provided with a connector 13 connecting the pressure relief valve 2 and the safety valve 3. The connector 13 is also provided with a second solenoid valve 14 for controlling the opening and closing of the pressure relief valve 2. When the bubble water is made, it is necessary to open the second solenoid valve 14 to control the opening of the pressure relief valve 2 to prevent the high-pressure bubble water from affecting the user experience. The outer wall of the safety valve is also provided with a connecting hole 37, and the connector 13 is provided with a connecting column 131. The connecting column 131 is a hollow structure. The fastener 38 passes through the connecting hole 37 and is connected to the connecting column 131. The fastener 38 can be a screw, but is not limited to this.

[0041] An air inlet 15 and a water inlet 16 are provided on the lower cover 12. The air inlet assembly is connected to the air inlet 15 to intake air into the mixing chamber 10, and the water inlet assembly is connected to the water inlet 16 to intake water into the mixing chamber 10. A one-way valve 17 is provided on both the air inlet 15 and the water inlet 16 to prevent the liquid in the mixing chamber 10 from flowing back. After the gas and water are mixed in the mixing chamber 10 to form bubble water, the bubble water flows out through the water outlet 18. The water outlet 18 is provided with a first solenoid valve 19 to control the opening and closing of the water outlet 18.

[0042] 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 sparkling water machine, comprising a water supply component, an air supply component and a mixing component, wherein the mixing component comprises a mixing container having a mixing chamber, the water supply component supplies water to the mixing chamber, the air supply component supplies air to the mixing chamber, the mixing container is provided with a pressure relief valve and a safety valve, the rated opening pressure P2 of the pressure relief valve is less than the rated opening pressure P1 of the safety valve, and the characteristics are as follows: The safety valve includes a pressure relief channel, a valve plate and a puncture needle. The valve plate is arranged in the pressure relief channel and keeps the pressure relief channel closed. The tip of the puncture needle faces the valve plate. The valve plate is punctured by the puncture needle to achieve pressure relief after the pressure P in the mixing chamber exceeds P1.

2. The bubble water machine according to claim 1, characterized in that: The puncture needle is fixed in the safety valve, and the valve plate is movably installed in the safety valve and moves toward the tip of the puncture needle under the pressure of the mixing chamber, so as to be punctured by the puncture needle.

3. The bubble water machine according to claim 2, characterized in that: A support frame for fixing the valve plate is arranged inside the safety valve, and the outer periphery of the support frame is sealed with the inner wall of the safety valve. The support frame drives the valve plate to move toward the tip of the puncture needle under the pressure of the mixing chamber.

4. The bubble water machine according to claim 3, characterized in that: The safety valve comprises a valve seat and a valve housing, the valve housing and the valve seat are sealed and connected to form a valve cavity, the pressure relief passage comprises an upstream section arranged on the valve seat and a downstream section arranged on the valve housing, the valve sheet closes the upstream section, and the downstream section is connected to the valve cavity.

5. The bubble water machine according to claim 4, characterized in that: The pressure relief channel includes a through hole arranged on the support frame, the valve plate is located between the upstream section and the upstream end of the through hole, the downstream end of the through hole is connected to the valve cavity, and the puncture needle extends from the downstream end of the through hole.

6. The bubble water machine according to claim 4, characterized in that: An elastic member is provided between the support frame and the valve housing or the valve seat to keep the valve plate closed at the upstream section.

7. The bubble water machine according to claim 4, characterized in that: A support platform for mounting the puncture needle is arranged in the valve housing, the downstream section extends into the support platform, and a side wall of the support platform is provided with an air release port communicating with the downstream section.

8. The bubble water machine according to claim 3, characterized in that: The valve plate comprises a fixing portion and a pierced portion, wherein the fixing portion surrounds the outer periphery of the pierced portion, the thickness of the pierced portion is smaller than that of the fixing portion, and an installation groove matching the fixing portion is provided at the upstream end of the support frame.

9. The bubble water machine according to claim 1, characterized in that: The valve sheet is fixed in the safety valve, and the puncture needle is movably installed in the safety valve and moves toward the valve sheet under the pressure of the mixing chamber, thereby puncturing the valve sheet.

10. The sparkling water machine according to claim 1, characterized in that: The valve sheet comprises a fixed portion and a deformable portion, wherein the fixed portion surrounds the outer periphery of the deformable portion, and the deformable portion deforms toward the tip of the puncture needle under the pressure of the mixing chamber, and pressure relief is achieved after the deformable portion is punctured by the puncture needle.

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