Bubble water machine

Abstract

The utility model discloses a sparkling water machine, which belongs to the field of household appliances, solves the problems that a safety valve in the prior art cannot be reused and the equipment cost is higher, 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 first valve body and a first valve element, the first valve body is provided with a first channel used for pressure release, the first channel is communicated with the mixing cavity, and a normally-closed position and a pressure release position for containing the first valve element are arranged in the first channel. The first channel is kept closed when the first valve element is located at the normally-closed position, and the first channel is kept unblocked when the first valve element is located at the pressure relief position. The utility model is mainly used for reducing the equipment cost of the sparkling water machine and realizing dual pressure relief protection.

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 bubble water machine, including a pressure relief valve, which is arranged on the machine body, 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 bubble water is made, the pressure relief valve is opened, and the water bottle is connected to the atmosphere through the pressure relief valve, and the excess pressure in the water bottle is released to ensure that there is no safety hazard when the water bottle is disassembled. The safety valve is in a normally closed state under the action of external force. When the pressure in the water bottle rises above the specified value, the safety valve opens to release the pressure to ensure the safety of the user. The double pressure relief device can achieve double insurance of pressure relief safety. Usually, the safety valve and the pressure relief valve of the bubble water machine adopt the same structure. The safety valve cannot be reset after being triggered and cannot be reused, resulting in high equipment cost, and the safety valve and the pressure relief valve are generally set independently, which takes up a lot of space. Utility Model Content

[0005] The utility model aims to provide a bubble water machine, solve the problems in the prior art that the safety valve cannot be reused and the equipment cost is high, and reduce the equipment cost of the bubble water machine.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bubble water machine, comprising a water supply component, an air supply component and a mixing component, the mixing component comprising 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 comprises a first valve body and a first valve core, the first valve body has a first channel for pressure relief, the first channel is connected to the mixing chamber, the first channel is provided with a normally closed position and a pressure relief position for accommodating the first valve core, when the first valve core is in the normally closed position, the first channel is kept closed, and when the first valve core is in the pressure relief position, the first channel is kept unobstructed.

[0007] After adopting the above technical solution, the utility model has the following advantages: the interior of the mixing chamber is sealed and generates huge pressure as a large amount of gas is filled in. When the pressure in the mixing chamber reaches the rated valve opening pressure P2 of the pressure relief valve, the pressure relief valve starts, the bubble water machine stops taking in air, and starts to release pressure to a safe value; if the pressure relief valve fails, the bubble water machine continues to work, and the pressure in the mixing chamber continues to increase to the rated valve opening pressure P1 of the safety valve. At this time, the safety valve starts and releases pressure to a safe value. The rated valve opening pressure P2 of the pressure relief valve is less than the rated valve opening pressure P1 of the safety valve. Double pressure relief realizes double safety guarantee of pressure relief safety, which improves the safety of the bubble water machine.

[0008] The first channel is connected to the mixing chamber to ensure that the pressure in the first channel is the same as the pressure in the mixing chamber. When the pressure in the mixing chamber is too high, an obvious pressure difference is formed inside and outside the first channel, pushing the first valve core to move toward the outside of the first channel, pushing the first valve core from the normally closed position to the pressure relief position, so that the first channel remains unobstructed, and the pressure in the mixing chamber is reduced to a safe value. The first channel is unobstructed by pushing the first valve core to the pressure relief position, ensuring that the safety valve can start pressure relief in time, achieving the effect of overpressure protection, improving safety of use, and protecting the bubble water machine from damage. After the pressure relief is completed, the first valve core can be pushed back to the normally closed position by external force, so that the first channel remains closed, and the safety valve can be reused to reduce the equipment cost of the bubble water machine. The safety valve has a simple structure and a small size, and is very convenient to install and use.

[0009] Furthermore, the diameter of the first valve core is d, and a constriction is provided in the first channel between the normally closed position and the pressure relief position, and the diameter of the constriction is D, D<d, and the first valve core moves between the normally closed position and the pressure relief position through the constriction. With the aforementioned technical solution, when the pressure in the mixing chamber is normal, the constriction is provided, and the diameter D of the constriction is smaller than the diameter d of the first valve core, so that the first valve core is limited to the normally closed position, so that the first channel remains closed, and the mixing chamber can be kept in a sealed state for normal use. The constriction has a blocking effect on the first valve core, and the first valve core can only move from the normally closed position to the pressure relief position when the pressure in the mixing chamber reaches the rated valve opening pressure P1 of the safety valve, thereby ensuring the reliability of the double pressure relief protection. If D≥d, even when the pressure in the mixing chamber is normal, the first valve core can easily move between the normally closed position and the pressure relief position, resulting in failure of the safety valve, failure of the seal between the first channel and the mixing chamber, and failure of the bubble water machine to work normally.

[0010] Furthermore, the first valve core is a flexible valve core, and uses its own deformation to pass through the constriction. With the aforementioned technical solution, the first valve core can be deformed and pass through the constriction after being subjected to pressure, which reduces the friction between the first valve core and the constriction, facilitates the first valve core to quickly pass through the constriction to keep the first channel unobstructed, reduces the pressure in the mixing chamber, and is also conducive to extending the service life of the first valve core. The flexible valve core also has good elastic recovery ability. After the external force pushes the first valve core to return to the normally closed position, it can quickly return to its original state, ensuring that the first channel remains closed, ensuring the reliability of the safety valve being reused, and further ensuring the sealing reliability under normal pressure of the mixing chamber.

[0011] Alternatively, a flexible ring rib is provided in the first channel, the flexible ring rib forms a constriction, and the first valve core passes through the constriction by deforming the flexible ring rib. With the aforementioned technical solution, the first valve core squeezes the inner wall of the constriction when passing through the constriction, and the constriction is deformed, which reduces the friction between the first valve core and the constriction, and is conducive to the first valve core passing through the constriction quickly to keep the first channel unobstructed, thereby reducing the pressure in the mixing chamber. The flexible ring rib has a good deformation recovery ability, and can still be elastic after repeated deformation, and still has a blocking effect on the first valve core, thereby ensuring the reliability of the reused safety valve.

[0012] Furthermore, the inner wall of the first channel is provided with an air relief groove at the pressure relief position, and the air relief groove extends along the gas outlet direction of the first channel. With the above technical solution, the air relief groove connects the first channel with the outside, and the gas can flow out of the air relief groove to reduce the pressure in the mixing chamber. In this process, the gas will collide and rub with the inner wall of the air relief groove, causing the gas to form a vortex in the air relief groove, thereby making 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.

[0013] Furthermore, the first valve body includes a valve seat and a valve cover, the first channel includes an inlet section located in the valve seat and an outlet section located in the valve cover, the normally closed position and the pressure relief position are both located in the outlet section, a sealing gasket is provided between the valve seat and the valve cover, and the inlet section and the outlet section are connected through the inner hole of the sealing gasket. By adopting the above technical solution, by providing a sealing gasket between the valve seat and the valve cover, the sealing performance of the first channel can be ensured, and the sealing failure of the mixing chamber caused by gas leakage can be prevented, thereby affecting the normal use of the bubble water machine. The inlet section and the outlet section are connected through the inner hole of the sealing gasket, and the gas can flow out from the inner hole, ensuring that the gas can flow out quickly to reduce the pressure in the mixing chamber.

[0014] Furthermore, the valve cover is provided with a fixing frame in the outlet section, and the fixing frame presses the first valve core to the normally closed position. With the above technical solution, the fixing frame applies a force to the first valve core, so that the first valve core is pressed to the normally closed position, and the first valve core is closely attached to the fixing frame, so as to prevent the first valve core from deviating, ensure that the first channel remains in the normally closed state, and ensure the normal use of the bubble water machine.

[0015] Furthermore, the fixing frame is provided with a through hole, and the first valve core is pressed against the fixing frame and fits the edge of the through hole to close the first channel. With the above technical solution, the first valve core is pressed against the fixing frame, so that the first valve core fits the edge of the through hole, and the first valve core closes the through hole, ensuring that the first channel remains in a normally closed state, preventing gas leakage in the mixing chamber from affecting the normal use of the bubble water machine.

[0016] Furthermore, the first valve core is in a normally closed position and is in a sealed cooperation with the inner wall of the outlet section. The above technical solution ensures that the first channel remains in a normally closed state, the gas in the mixing chamber does not leak, and the normal use of the bubble water machine is guaranteed. After the first valve core is reset, it can still be sealed with the inner wall of the outlet section, ensuring the reliability of the reused safety valve.

[0017] Furthermore, the valve seat is provided with an installation groove for positioning the sealing gasket and at least two connecting columns, all the connecting columns are distributed around the installation groove, the valve cover includes a base extending between the connecting columns and a cover body sleeved on the connecting columns, the end face of the base is provided with an annular convex rib pressed against the sealing gasket, and the fastener passes through the cover body and is connected to the connecting column. With the above-mentioned technical solution, the installation groove provides a clear installation position, which is convenient for installing the sealing gasket. The annular convex rib is in tight contact with the sealing gasket, which reduces the contact area between the base and the sealing gasket, increases the tight pressure, and ensures the sealing reliability between the base and the valve body. The fastener passes through the cover body and is connected to the connecting column, which firmly fixes the cover body and the valve body, so that the base and the valve body press the sealing gasket, prevent the displacement of the sealing gasket from affecting the sealing of the first channel, and further ensure the sealing stability of the mixing chamber. The use of fasteners to achieve fixed connection is simple to operate, and it is also convenient to install and disassemble and replace the first valve core and the sealing gasket.

[0018] Furthermore, a first step is provided at the edge of the mouth of the installation groove, and a second step is provided at the outer periphery of the annular convex rib, and the second step abuts against the first step. With the above technical solution, when the base is installed and fixed to a suitable position, the second step limits the base, ensuring that the base has been installed in the correct position and that the annular convex rib presses against the sealing gasket. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings:

[0020] Figure 1 It is a cross-sectional view of the safety valve;

[0021] Figure 2 is a schematic diagram of the movement process of the first valve core in the first channel;

[0022] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0023] Figure 4 It is a schematic diagram of a mixing component in a bubble water machine of the utility model;

[0024] Figure 5 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 5 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 first valve body 31 and a first valve core 32, the first valve body 31 has a first channel 33 for pressure relief, the first channel 33 is connected to the mixing chamber 10, a normally closed position 331 and a pressure relief position 332 for accommodating the first valve core 32 are provided in the first channel 33, when the first valve core 32 is in the normally closed position 331, the first channel 33 is kept closed, and when the first valve core 32 is in the pressure relief position 332, the first channel 33 is kept unobstructed.

[0029] In the utility model, 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 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 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 first channel 33 is connected to the mixing chamber 10 to ensure that the pressure in the first channel 33 is the same as the pressure in the mixing chamber 10. When the pressure in the mixing chamber 10 is too high, a significant pressure difference is formed inside and outside the first channel 33, pushing the first valve core 32 to move toward the outside of the first channel 33, pushing the first valve core 32 from the normally closed position 331 to the pressure relief position 332, so that the first channel 33 remains unobstructed, and the pressure in the mixing chamber 10 is reduced to a safe value. By pushing the first valve core 32 to move to the pressure relief position 332, the first channel 33 is unobstructed, ensuring that the safety valve 3 can start pressure relief in time, achieving the effect of overpressure protection, improving the safety of use, and protecting the bubble water machine from damage. After the pressure relief is completed, the first valve core 32 can be pushed by external force to return to the normally closed position 331, so that the first channel 33 is closed and remains closed, and the safety valve 3 can be reused to reduce the equipment cost of the bubble water machine. In addition, the safety valve 3 has a simple structure, a small size, and is very convenient to install and use.

[0031] like Figures 1 to 3 As shown, in order to ensure that the first valve core 32 can move to the pressure relief position 332 only after being pushed by the pressure of the mixing chamber 10, in one embodiment, the diameter of the first valve core 32 is d, and a constriction 34 is provided in the first channel 33 between the normally closed position 331 and the pressure relief position 332, and the diameter of the constriction 34 is D, D<d, and the first valve core 32 moves between the normally closed position 331 and the pressure relief position 332 through the constriction 34. When the pressure in the mixing chamber 10 is normal, the constriction 34 is provided, and the diameter D of the constriction 34 is smaller than the diameter d of the first valve core 32, so that the first valve core 32 is limited to the normally closed position 331, so that the first channel 33 remains closed, and the mixing chamber 10 can be kept in a sealed state for normal use. The constriction 34 has a blocking effect on the first valve core 32, and ensures that the pressure in the mixing chamber 10 reaches the rated valve opening pressure P1 of the safety valve 3, and the first valve core 32 can move from the normally closed position 331 to the pressure relief position 332, thereby ensuring the reliability of the double pressure relief protection. If D≥d, even when the pressure in the mixing chamber 10 is normal, the first valve core 32 can easily move between the normally closed position 331 and the pressure relief position 332, causing the safety valve 3 to fail, the seal between the first channel 33 and the mixing chamber 10 to fail, and the bubble water machine cannot work normally.

[0032] In order to ensure that the first valve core 32 can pass through the constriction 34, in one embodiment, the first valve core 32 is a flexible valve core, and uses its own deformation to pass through the constriction 34. The first valve core 32 can be deformed and pass through the constriction 34 after being subjected to pressure, which reduces the friction between the first valve core 32 and the constriction 34, and is conducive to the first valve core 32 quickly passing through the constriction 34 to keep the first channel 33 unobstructed, reduce the pressure in the mixing chamber 10, and also help to extend the service life of the first valve core 32. The flexible valve core also has good elastic recovery ability. After the external force pushes the first valve core 32 to return to the normally closed position 331, it can quickly return to its original state, ensuring that the first channel 33 remains closed, ensuring the reliability of the safety valve 3 being reused, and further ensuring the sealing reliability of the mixing chamber 10 under normal pressure.

[0033] In another embodiment, a flexible ring rib is provided in the first channel 33, and the flexible ring rib forms a constriction 34. The first valve core 32 passes through the constriction 34 by means of the deformation of the flexible ring rib. When the first valve core 32 passes through the constriction 34, it squeezes the inner wall of the constriction 34, and the constriction 34 is deformed, which reduces the friction between the first valve core 32 and the constriction 34, and is conducive to the first valve core 32 to quickly pass through the constriction 34 so that the first channel 33 remains unobstructed, and the pressure in the mixing chamber 10 is reduced. The flexible ring rib has a good deformation recovery ability, and can still be elastic after repeated deformation, and still has a blocking effect on the first valve core 32, thereby ensuring the reliability of the reuse of the safety valve 3.

[0034] In order to remind the user to repair the bubble water machine in time, in one embodiment, the inner wall of the first channel 33 is provided with an air relief groove 35 at the pressure relief position 332, and the air relief groove 35 extends along the gas outlet direction of the first channel 33. The air relief groove 35 connects the first channel 33 with the outside, and the gas can flow out of the air relief groove 35 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 relief groove 35, causing the gas to form a vortex in the air relief groove 35, 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.

[0035] In order to ensure the sealing reliability of the mixing chamber 10, in one embodiment, the first valve body 31 includes a valve seat 311 and a valve cover 312, the first channel 33 includes an inlet section 333 located in the valve seat 311 and an outlet section 334 located in the valve cover 312, the normally closed position 331 and the pressure relief position 332 are both located in the outlet section 334, a sealing gasket 313 is provided between the valve seat 311 and the valve cover 312, and the inlet section 333 and the outlet section 334 are communicated through the inner hole 314 of the sealing gasket 313. By providing the sealing gasket 313 between the valve seat 311 and the valve cover 312, the sealing performance of the first channel 33 can be ensured, and the sealing failure of the mixing chamber 10 caused by gas leakage can be prevented, thereby affecting the normal use of the bubble water machine, the inlet section 333 and the outlet section 334 are communicated through the inner hole 314 of the sealing gasket 313, and the gas can flow out from the inner hole 314, ensuring that the gas can flow out quickly to reduce the pressure in the mixing chamber 10.

[0036] When the pressure in the mixing chamber 10 is normal, in order to ensure that the first channel 33 remains in a normally closed state, in one embodiment, the valve cover 312 is provided with a fixing frame 315 in the outlet section 334, and the fixing frame 315 presses the first valve core 32 to the normally closed position 331. The fixing frame 315 applies a force to the first valve core 32, so that the first valve core 32 is pressed to the normally closed position 331, so that the first valve core 32 is closely attached to the fixing frame 315, and the first valve core 32 is prevented from deflecting, so as to ensure that the first channel 33 remains in a normally closed state, and the normal use of the bubble water machine is ensured.

[0037] In one embodiment, the fixing frame 315 is provided with a through hole 316, and the first valve core 32 is pressed against the fixing frame 315 and fits the edge of the through hole 316 to close the first channel 33. The first valve core 32 is pressed against the fixing frame 315, so that the first valve core 32 fits the edge of the through hole 316, so that the first valve core 32 closes the through hole 316, ensuring that the first channel 33 remains in a normally closed state, preventing gas leakage in the mixing chamber 10 from affecting the normal use of the bubble water machine.

[0038] In one embodiment, when the first valve core 32 is in the normally closed position 331, it seals with the inner wall of the outlet section 334, ensuring that the first channel 33 remains in a normally closed state, and the gas in the mixing chamber 10 does not leak, thereby ensuring the normal use of the bubble water machine. After the first valve core 32 is reset, it can still seal with the inner wall of the outlet section 334, ensuring the reliability of the reuse of the safety valve 3.

[0039] In order to ensure the connection stability and sealing between the valve body and the valve cover 312, in one embodiment, the valve seat 311 is provided with a mounting groove 317 for positioning the sealing gasket 313 and at least two connecting columns 318, all the connecting columns 318 are distributed around the mounting groove 317, the valve cover 312 includes a base 319 extending between the connecting columns 318 and a cover 320 sleeved on the connecting columns 318, the end surface of the base 319 is provided with an annular convex rib 321 pressed against the sealing gasket 313, and the fastener 325 passes through the cover 320 and is connected to the connecting column 318. The mounting groove 317 provides a clear installation position for easy installation of the sealing gasket 313. The annular convex rib 321 is in close contact with the sealing gasket 313, which reduces the contact area between the base 319 and the sealing gasket 313, increases the close contact pressure, and ensures the sealing reliability between the base 319 and the valve body. The fastener 325 passes through the cover 320 and is connected to the connecting column 318, which firmly fixes the cover 320 and the valve body, so that the base 319 and the valve body press the sealing gasket 313, prevents the displacement of the sealing gasket 313 from affecting the sealing performance of the first channel 33, and further ensures the sealing stability of the mixing chamber 10. The fastener 325 is used to achieve fixed connection, which is simple to operate and is also convenient for installing and disassembling and replacing the first valve core 32 and the sealing gasket 313. The fastener 325 can be a screw, and the connecting column 318 is a hollow structure. The inner wall of the connecting column 318 is provided with a thread to cooperate with the screw.

[0040] The edge of the mouth of the installation groove 317 is provided with a first step 322, and the outer periphery of the annular convex rib 321 is provided with a second step 323, and the second step 323 abuts against the first step 322. When the base 319 is installed and fixed to a suitable position, the second step 323 limits the base 319, ensuring that the base 319 has been installed to the correct position and ensuring that the annular convex rib 321 presses against the sealing gasket 313.

[0041] like Figures 4 to 5 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 injection from affecting the user experience.

[0042] 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 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 19. A first solenoid valve 18 is provided on the water outlet to control the opening and closing of the water outlet 19.

[0043] 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 first valve body and a first valve core. The first valve body has a first channel for pressure relief. The first channel is connected to a mixing chamber. A normally closed position and a pressure relief position for accommodating the first valve core are provided in the first channel. When the first valve core is in the normally closed position, the first channel is kept closed. When the first valve core is in the pressure relief position, the first channel is kept unobstructed.

2. The bubble water machine according to claim 1, characterized in that: The diameter of the first valve core is d, and a constriction is provided in the first channel between the normally closed position and the pressure relief position. The diameter of the constriction is D, D<d, and the first valve core moves between the normally closed position and the pressure relief position through the constriction.

3. The bubble water machine according to claim 2, characterized in that: The first valve core is a flexible valve core and passes through the constriction by its own deformation; or, a flexible ring rib is provided in the first channel, the flexible ring rib forms a constriction, and the first valve core passes through the constriction by the deformation of the flexible ring rib.

4. The bubble water machine according to claim 1, characterized in that: The inner wall of the first channel is provided with an air relief groove at the pressure relief position, and the air relief groove extends along the air outlet direction of the first channel.

5. The bubble water machine according to claim 1, characterized in that: The first valve body includes a valve seat and a valve cover, the first channel includes an inlet section located in the valve seat and an outlet section located in the valve cover, the normally closed position and the pressure relief position are both located in the outlet section, a sealing gasket is provided between the valve seat and the valve cover, and the inlet section and the outlet section are connected through the inner hole of the sealing gasket.

6. The bubble water machine according to claim 5, characterized in that: The valve cover is provided with a fixing frame in the outlet section, and the fixing frame presses the first valve core tightly to the normally closed position.

7. The bubble water machine according to claim 6, characterized in that: The fixing frame is provided with a through hole, and the first valve core is pressed against the fixing frame and fits the edge of the through hole to close the first channel.

8. The bubble water machine according to claim 6, characterized in that: When the first valve core is in the normally closed position, it seals with the inner wall of the outlet section.

9. The sparkling water machine according to claim 5, characterized in that: The valve seat is provided with an installation groove for positioning the sealing gasket and at least two connecting columns, all the connecting columns are distributed around the installation groove, the valve cover includes a base body extending between the connecting columns and a cover body sleeved on the connecting columns, the end surface of the base body is provided with an annular rib that presses against the sealing gasket, and the fastener passes through the cover body and is connected to the connecting columns.

10. The sparkling water machine according to claim 9, characterized in that: A first step is arranged at the edge of the mouth of the installation groove, and a second step is arranged at the outer periphery of the annular convex rib, and the second step abuts against the first step.

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